TELESCOPIC DESK FRAME AND DESK

Abstract

A telescopic desk frame is disclosed that includes two desk leg assemblies and at least one beam assembly configured to be connected with and between the two desk leg assemblies; where the beam assembly includes a first beam and a second beam which are relatively telescopable, the first beam includes a first flange, the second beam includes a second flange which abuts against the first flange. The beam assembly disclosed can not only realize the telescopic function of the telescopic desk frame, but also improve the connection stability of the telescopic desk frame and enhance the supporting strength of the telescopic desk frame.

Claims

1. A telescopic desk frame, comprising: two desk leg assemblies; at least one beam assembly, configured to be connected with and between the two desk leg assemblies; wherein each beam assembly comprises a first beam and a second beam which are relatively telescopable, the first beam comprises a first flange, the second beam comprises a second flange which abuts against the first flange.

2. The telescopic desk frame according to claim 1, wherein the first flange comprises a first upper flange and a first lower flange, the second flange comprises a second upper flange and a second lower flange, the first upper flange and the second upper flange abut against each other and protrude in a first direction, and the first lower flange and the second lower flange abut against each other and protrude in a second direction.

3. The telescopic desk frame according to claim 2, wherein the first direction and the second direction are in a same direction or opposite directions.

4. The telescopic desk frame according to claim 1, wherein a first mounting portion is disposed on the first beam, a second mounting portion is disposed on the second beam, and the first mounting portion is configured to be connected to the second mounting portion.

5. The telescopic desk frame according to claim 4, wherein at least two second mounting portions are disposed on the second beam, and the first mounting portion is configured to be connected to any one of the at least two second mounting portions.

6. The telescopic desk frame according to claim 4, wherein the first mounting portion comprises two first holes, and the second mounting portion comprises two second holes, and a spacing between the two first holes is equal to a spacing between the two second holes.

7. The telescopic desk frame according to claim 4, wherein the first mounting portion is connected to the second mounting portion by an installation fastener configured to be inserted into the first hole and the second hole corresponding to the first hole.

8. The telescopic desk frame according to claim 2, further comprising a protruding portion disposed at least on a top surface of the first upper flange; wherein, the top surface of the first upper flange is lower than a top surface of the second upper flange.

9. The telescopic desk frame according to claim 1, further comprising two supporting portions, wherein the two supporting portions are arranged respectively to the two desk leg assemblies.

10. The telescopic desk frame according to claim 9, wherein each supporting portion comprises a first supporting plate, the first supporting plate is arranged horizontally and protrudes in an extension direction of the beam assembly, and a connection hole configured to be connected with a desk board is disposed on the first supporting plate.

11. A desk, comprising two desk feet, a desk board and a telescopic desk frame configured to be mounted on the two desk foot to support the desk board; wherein, the telescopic desk frame comprises: two desk leg assemblies; at least one beam assembly, configured to be connected with and between the two desk leg assemblies; wherein the beam assembly comprises a first beam and a second beam which are relatively telescopable, the first beam comprises a first flange, the second beam comprises a second flange which abuts against the first flange.

12. The desk according to claim 11, wherein the first flange comprises a first upper flange and a first lower flange, the second flange comprises a second upper flange and a second lower flange, the first upper flange and the second upper flange abut against each other and protrude in a first direction, and the first lower flange and the second lower flange abut against each other and protrude in a second direction.

13. The desk according to claim 12, wherein the first direction and the second direction are in a same direction or opposite directions.

14. The desk according to claim 11, wherein a first mounting portion is disposed on the first beam, a second mounting portion is disposed on the second beam, and the first mounting portion is configured to be connected to the second mounting portion.

15. The desk according to claim 14, wherein at least two second mounting portions are disposed on the second beam, and the first mounting portion is configured to be connected to any one of the at least two second mounting portions.

16. The desk according to claim 14, wherein the first mounting portion comprises two first holes, and the second mounting portion comprises two second holes, and a spacing between the two first holes is equal to a spacing between the two second holes.

17. The desk according to claim 14, wherein the first mounting portion is connected to the second mounting portion by an installation fastener configured to be inserted into the first hole and the second hole corresponding to the first hole.

18. The desk according to claim 12, further comprising a protruding portion disposed at least on a top surface of the first upper flange; wherein, the top surface of the first upper flange is lower than a top surface of the second upper flange.

19. The desk according to claim 11, further comprising two supporting portions, wherein the two supporting portions are arranged respectively to the two desk leg assemblies.

20. The desk according to claim 19, wherein the supporting portion comprises a first supporting plate which is arranged horizontally and protrudes in an extension direction of the beam assembly, and a connection hole configured to be connected with the desk board is disposed on the first supporting plate.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0019] A brief description of drawings, which are incorporated in the description of embodiments, will be provided below to illustrate technical solutions of the present application clearly. Obviously, the drawings described below are merely some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without making inventive efforts.

[0020] FIG. 1a is a schematic structural diagram of a telescopic desk frame in an embodiment of the present application.

[0021] FIG. 1b is a schematic structural diagram of a telescopic desk frame in another embodiment of the present application.

[0022] FIG. 2a is a schematic structural diagram of a beam assembly in an embodiment of the present application.

[0023] FIG. 2b is a schematic structural diagram of a beam assembly in another embodiment of the present application.

[0024] FIG. 3a is a sectional view of a beam assembly of an embodiment of the present application.

[0025] FIG. 4a is a schematic structural diagram of a first beam assembly in an embodiment of the present application.

[0026] FIG. 4b is a schematic structural diagram of a first beam assembly in another embodiment of the present application.

[0027] FIG. 5a is a schematic structural diagram of a second beam assembly in an embodiment of the present application.

[0028] FIG. 5b is a schematic structural diagram of a second beam assembly in another embodiment of the present application.

[0029] FIG. 6 is an exploded view of a telescopic desk frame in an embodiment of the present application.

DESCRIPTION OF EMBODIMENTS

[0030] To make the present application clearer and more understandable, detailed descriptions of specific embodiments will be provided below. Clearly, the described embodiments are part of the embodiments of the present application, not all of them. Based on the described embodiments of the present application, all other embodiments that can be obtained by those skilled in the art without inventive effort fall within the scope of the present application.

[0031] It should be noted that the drawings provided in the present application are merely illustrative examples of a basic concept of the present application. Therefore, only components relevant to the present application are shown in the drawings, which may be different in number, shape, size and scale in the actual implementation. The actual implementation can involve arbitrary modifications to the number, shape, size and scale of each component, and the arrangements of components may also be more complex. The structures, scales, and sizes illustrated in the drawings are intended to assist those in the art in understanding and reading the content of this specification, and are not intended to define the conditions under which the present application can be implemented. Thus, they do not have substantial technical significance. Any modifications to the structure, changes in proportional relationships, or adjustments in size that do not affect the effects and objectives of the present application should still fall within the scope of the technical solutions disclosed by the present application. Additionally, terms such as left, right, middle cited in this specification are for the sake of clarity and are not intended to define the scope of what can be implemented by this application. Changes or adjustments in their relative positions, as long as they do not substantially alter the technical solutions, should also be considered within the scope of what can be implemented by the present application.

[0032] The technical solutions of some embodiments of the present application are described below with reference to FIG. 1a-FIG. 6.

[0033] In a first aspect, the present application provides a telescopic desk frame, including two desk leg assemblies and at least one beam assembly configured to be connected with and between the two desk leg assemblies; where the beam assembly includes a first beam and a second beam which are relatively telescopable, the first beam includes a first flange and the second beam includes a second flange which abuts against the first flange. In some embodiments, the first flange may include one or more first sub-flanges, which can be disposed at any position on the first beam. For example, the first beam may include a vertical main body and at least one of a first sub-flange disposed on a top of the vertical main body and a first sub-flange disposed on a bottom of the vertical main body, or the first beam may include a horizontal main body and at least one of a first sub-flange disposed on a left side of the horizontal main body and a first sub-flange disposed on a right side of the horizontal main body. In some embodiments, the second flange may include one or more second sub-flanges, which can be disposed at any position on the second beam. For example, the second beam may include a vertical main body and at least one of a second sub-flange disposed on a top of the vertical main body and a second sub-flange disposed on a bottom of the vertical main body, or the second beam may include a horizontal main body and at least one of a second sub-flange disposed on a left side of the horizontal main body and a second sub-flange disposed on a right side of the horizontal main body. Additionally, a number of the first sub-flange and a number of the second sub-flange can be the same or different, with at least one first sub-flange abutting against one second sub-flange. A shape of the first sub-flange and A shape of the second sub-flange are not limited in the present application. Thus, the shape of one first sub-flange can be the same as or different from the shape of another first sub-flange, and the shape of one second sub-flange can be the same as or different from the shape of another second sub-flange, and the shape of one first sub-flange can be the same as or different from the shape of one second sub-flange, with the shape of at least one first sub-flange matching the shape of the second sub-flange to abut against each other. The shapes of the first sub-flange and the second sub-flange can be flat or irregular but not limited. For example, the first sub-flange or the second sub-flange may include one or more bent sections.

[0034] In some embodiments, a length of the first beam and a length of the second beam can be in a range of 700 mm-900 mm, a height of the first beam and a height of the second beam can be in a range of 40 mm-70 mm, and a width of the first flange and a width of the second flange can be in a range of 15 mm-30 mm. The length of the first beam and the length of the second beam can be the same or different, the height of the first beam and the height of the second beam can be the same or different, and the width of the first flange and the width of the second flange can be the same or different.

[0035] In some embodiments, at a corner where the first flange is connected to a main body of the first beam, a gap exists between two surfaces opposite to each other of the first beam and the second beam. In some embodiments, the beam assembly includes one or more pressure balancing openings disposed on the two surfaces opposite to each other of the first beam and the second beam, which form the gap, to avoid a telescopic resistance or dismounting resistance caused by a difference between a pressure of the gap and atmospheric pressure.

[0036] In some embodiments, a first angle between the first flange and the main body of the first beam and a second angle between the second flange and the main body of the second beam can be in a range of 45-90, preferably 60-90.

[0037] In some embodiments, the beam assembly further includes a strengthening element, which includes at least one of a first strengthening element and a second strengthening element. The first strengthening element is connected to both the first flange and the main body of the first beam, and the second strengthening element is connected to both the second flange and the main body of the second beam. In the present application, position and number of the strengthening element are not limited, as long as a telescopability of the telescopic desk frame is not restricted by an arrangement of the strengthening element. For example, the first strengthening element can be disposed at an end near the desk leg assembly of the first beam, and the second strengthening element can be disposed at an end near the desk leg assembly of the second beam, where a plurality of the second strengthening elements can be evenly or unevenly distributed on the second beam, which is the inner beam in the beam assembly. Therefore, such a plurality of the second strengthening elements will not restrict the telescopicability of the beam assembly.

[0038] In some embodiments, the first flange includes a first upper flange and a first lower flange, the second flange includes a second upper flange and a second lower flange, the first upper flange and the second upper flange abut against each other and protrude in a first direction, and the first lower flange and the second lower flange abut against each other and protrude in a second direction.

[0039] In a possible implementation, the first direction and the second direction can be in a same direction. As shown in FIG. 1a, FIG. 2a, and FIG. 3a, the telescopic desk frame includes: two desk leg assemblies 100; at least one beam assembly 200, configured to be connected with and between the two leg assemblies 100. Each beam assembly 200 includes a first beam 210 and a second beam 220 that can be relatively telescopable and fit together. The first beam 210 includes a first flange 211 which includes sub-flanges protruding in a same direction, the second beam 220 includes a second flange 221 which includes sub-flanges protruding in a same direction, and the first flanges 211 and the second flanges 221 abut against each other and protrude in a same direction. Specifically, the first flange 211 includes a first upper flange 211a and a first lower flange 211b, and the second flange 221 includes a second upper flange 221a and a second lower flange 221b, and the first upper flange 211a, the first lower flange 211b, the second upper flange 221a and the second lower flange 221b protrude in the same direction.

[0040] As shown in FIG. 2a, the first upper flange 211a and the first lower flange 211b both protruding in the same direction form a U-shaped structure of the first beam 210. The second upper flange 221a and the second lower flange 221b both protruding in the same direction form a U-shaped structure of the second beam 220. The first flange 211 and the second flange 221 abut against each other, allowing the first beam 210 and the second beam 220 to be relatively telescopable.

[0041] The first beam 210 and the second beam 220 are relatively telescopable, achieving a purpose of the telescopic desk frame being able to extend and retract relatively. The first flange 211 and the second flange 221 abut against each other and protrude in the same direction, achieving that when a load is borne at a telescoped part of the first beam 210 and the second beam 220, the first flange 211 and the second flange 221 can share the load applied at the telescoped part, thus preventing excessive load on the telescoped part and enhancing the stability of the telescopic desk frame.

[0042] In addition, the desk leg assembly 100 may include a column inner tube and a column outer tube, where the column inner tube is telescoped into the column outer tube to enable the desk leg assembly 100 to be raised and lowered.

[0043] In another possible implementation, the first direction and the second direction can be in opposite directions. As shown in FIG. 1b, FIG. 2b, and FIG. 3b, the telescopic desk frame includes a first desk leg assembly 610, a second desk leg assembly 620, and a beam assembly. The beam assembly includes a first beam 110 and a second beam 120. The first beam 110 is connected with the first desk leg assembly 610 and includes a first upper flange 111 and a first lower flange 112. The first upper flange 111 and the first lower flange 112 protrude in opposite directions. The second beam 120 is connected with the second desk leg assembly 620 and can be relatively telescopable to the first beam 110. The second beam 120 includes a second upper flange 121 and a second lower flange 122. The second upper flange 121 and the second lower flange 122 protrude in opposite directions. The first upper flange 111 and the second upper flange 121 abut against each other and protrude in a same direction, and the first lower flange 112 and the second lower flange 122 abut against each other and protrude in a same direction.

[0044] The first beam 110 is connected with the second beam 120, and the first beam 110 and the second beam 120 are respectively connected with the first desk leg assembly 610 and the second desk leg assembly 620. The first beam 110 and the second beam 120 are relatively telescopable, achieving a purpose of the telescopic desk frame being able to extend and retract relatively. The first upper flange 111 and the second upper flange 121 protrude horizontally in the first direction and abut against each other vertically, and the first lower flange 112 and a second lower flange 122 protrude horizontally in the second direction and abut against each other vertically. The first direction and the second direction are opposite directions. Therefore, when a load is borne at the first beam 110 and the second beam 120, the first upper flange 111 and the second upper flange 121 abut against each other to share the load, and the first lower flange 112 and the second lower flange 122 abut against each other to share the load, thereby enhancing the stability of the telescopic desk frame. Additionally, the first upper flange 111 and the second upper flange 121 are horizontally disposed at a top end of the first beam 110 and a top end of the second beam 120 respectively, achieving a supporting effect to a desk board.

[0045] In addition, the first desk leg assembly 610 and the second desk leg assembly 620 may include a column inner tube and a column outer tube, where the column inner tube is telescoped into the column outer tube to enable the first desk leg assembly 610 and the second desk leg assembly 620 to be raised and lowered.

[0046] As shown in FIG. 4a-FIG. 5b, a first mounting portion is disposed on the first beam, a second mounting portion is disposed on the second beam, and the first mounting portion is configured to be connected to the second mounting portion. The number and position of the first mounting portion and the second mounting portion are not limited. In some embodiments, one or more first mounting portions can all be located on the first flange, one or more first mounting portions can all be located on other parts of the first beam that are not the first flange, a plurality of first mounting portions can be disposed on both the first flange and other parts of the first beam that are not the first flange; one or more second mounting portions can all be located on the second flange, one or more second mounting portions can all be located on other parts of the second beam that are not the second flange, a plurality of second mounting portions can be disposed on both the second flange and other parts of the second beam that are not the second flange. A number of the first mounting portion and a number of the second mounting portion can be same or different.

[0047] Specifically, at least two second mounting portions are disposed on the second beam, and the first mounting portion is configured to be connected to any one of the at least two second mounting portions.

[0048] In some embodiments, the first mounting portion includes at least two first holes, and the second mounting portion includes at least two second holes. Spacings between adjacent first holes can be equal or unequal, spacings between adjacent second holes can be equal or unequal, and a number of the first holes can be equal or unequal to a number of the second holes, with at least one pair of adjacent first holes having a spacing that matches one of the spacings between adjacent second holes. Additionally, positions of the first holes and positions of the second holes are not limited in the present application. For example, all the first holes can be disposed on the first flange, all the first holes can be disposed on other parts of the first beam that are not the first flange, or all the first holes can be disposed on both the first flange and other parts of the first beam that are not the first flange; all the second holes can be disposed on the second flange, all the second holes can be disposed on other parts of the second beam that are not the second flange, or all the second holes can be disposed on both the second flange and other parts of the second beam that are not the second flange.

[0049] In a possible implementation, as shown in FIG. 4a and FIG. 5a, a first mounting portion 212 is disposed on the first beam 210, at least two second mounting portions 222 are disposed on the second beam 220, and the first mounting portion 212 is configured to be connected to any one of the at least two second mounting portions 222.

[0050] The first beam 210 and the second beam 220 both include a vertical main body. The first mounting portion 212 and the second mounting portions 222 are respectively disposed on these vertical main bodies. During installation, the first mounting portion 212 is aligned with and connected to one second mounting portion 222. A plurality of second mounting portions 222 are disposed on the second beam 220, allowing the first mounting portion 212 to be able to be connected to different second mounting portions 222, which changes an overall length of the beam assembly 200 to achieve the purpose of the telescopic desk frame of being extendable and retractable. As shown in FIG. 4a and FIG. 5a, the first mounting portion 212 includes two first holes 212a, and the second mounting portion 222 includes two second holes 222a. A spacing between the two first holes 212a is equal to a spacing between the two second holes 222a.

[0051] During installation, the first mounting portion 212 and the second mounting portion 222 fit together, allowing the two first holes 212a to be aligned with the two second holes 222a respectively. This alignment facilitates connection, ensuring that the first mounting portion 212 and the second mounting portion 222 have multiple bearing points when bearing weight, thereby enhancing the stability of the connection between the first beam 210 and the second beam 220. Additionally, the spacing between the two first holes 212a of the first mounting portion 212 is equal to the spacing between the two second holes 222a of the second mounting portion 222, ensuring that the first mounting portion 212 and the second mounting portion 222 can connect and cooperate with each other.

[0052] In some embodiments, the first mounting portion is connected to the second mounting portion by an installation fastener configured to be inserted into the first hole and the second hole corresponding to the first hole. The installation fastener can be of various types. For example, the first mounting portion 212 and the second mounting portion 222 can be connected by at least one of a bolt, strap, or buckle.

[0053] Specifically, the first mounting portion 212 being connected to the second mounting portion 222 by the installation fastener can achieve a detachable effect of the first mounting portion 212 of being detachably connected to different second mounting portions 222. Therefore, the installation fastener can be disassembled and reinstalled according to different needs, achieving the telescopic effect of the telescopic desk frame. Moreover, the installation fastener allows the connection to have excellent load-bearing capacity, making the connection between the first beam 210 and the second beam 220 more stable, thereby enhancing the stability of the beam assembly 200.

[0054] As shown in FIG. 1a-FIG. 6, the telescopic desk frame further includes a protruding portion disposed at least on a top surface of the first upper flange, where the top surface of the first upper flange is lower than a top surface of the second upper flange. In some embodiments, the protruding portion can be at least one of a desk mat, a raised hole, or a raised block, and a plurality of protruding portions of different heights can be positioned at any part on a surface where the telescopic desk frame contacts the desk board. For example, the plurality of protruding portions of different heights can be disposed on both the top surface of the first upper flange and the top surface of the second upper flange, or the plurality of protruding portions of different heights can be disposed only on a top surface with a lower altitude of the first upper flange and the second upper flange.

[0055] At least two beam assemblies are arranged parallel, and two ends of each beam assembly are connected with the two desk leg assemblies respectively.

[0056] The telescopic desk frame further includes two supporting portions, where the two supporting portions are arranged respectively to the two desk leg assemblies.

[0057] Each supporting portion includes a first supporting plate, the first supporting plate is arranged horizontally and protrudes in an extension direction of the beam assembly, and a connection hole configured to be connected with a desk board is disposed on the first supporting plate.

[0058] In a possible implementation, as shown in FIG. 1a, FIG. 2a, FIG. 3a, FIG. 4a, FIG. 5a, and FIG. 6, a top surface of the first upper flange 211a is lower than a top surface of the second upper flange 221a, and a first raised hole 213 is disposed on the first upper flange 211a. Additionally, a second protruding hole 223 can be disposed on the top surface of the second upper flange 221a or not.

[0059] With the first beam 210 connected to the second beam 220, the first beam 210 is positioned below the second beam 220, creating a height difference between them, while the first upper flange 211a of the first beam 210 and the second upper flange 221a of the second beam 220 both need to contact the desk board. Therefore, a top surface of the first raised hole 213 can share a same altitude with a top surface of the second raised hole 223 or the top surface of the second upper flange 221a, allowing the end of the telescopic desk frame that contacts the desk board to be on the same horizontal plane, which ensures that when the desk board is connected to the telescopic desk frame, the desk board can be supported reposefully.

[0060] Two beam assemblies are arranged parallel and connected with and between the two desk leg assemblies 100, and two ends of each beam assembly are connected with the two desk leg assemblies respectively.

[0061] The presence of two beam assemblies between the two desk leg assemblies 100 makes a structure of the telescopic desk frame more stable and also allows the desk board to be installed on the telescopic desk frame more stably.

[0062] In some embodiments, only one beam assembly can be arranged between the two desk leg assemblies 100 to reduce the manufacturing cost on the basis of ensuring the stability of the telescopic desk frame structure.

[0063] The telescopic desk frame further includes two supporting portions 300, top surfaces of the two supporting portions 300 are in a same horizontal plane, and the two supporting portions 300 are connected with both ends of the beam assembly 200 respectively.

[0064] Specifically, the two supporting portions 300 are disposed at both ends of the beam assembly, so that the whole telescopic desk frame can be more reasonably loaded and more stable. Moreover, the two supporting portions 300 are in direct contact with the desk board, and the upper surfaces of the two supporting portions 300 are on the same horizontal plane, so that the desk board is installed more reposefully.

[0065] Each supporting portion 300 includes a first supporting plate 310 and a second supporting plate 320. The first supporting plate 310 is arranged horizontally and protrudes in an extension direction of the beam assembly 200, and the second supporting plate 320 is arranged vertically and protrudes in a height direction of the desk leg assembly 100. The first supporting plate 310 is connected with the beam assembly 200 through fasteners.

[0066] The arrangements in which the first supporting plate 310 protrudes in the extension direction of the beam assembly 200, the second supporting plate 320 protrudes in the height direction of the desk leg assembly 100, the first supporting plate 310 and the second supporting plate 320 are arranged perpendicularly to each other; a plurality of connection holes, which are connected with the beam assembly 200, the leg assembly 100, and the desk board, are disposed on the first supporting plate 310achieve an effect of the supporting portion 300 of increasing a supporting area for the desk board by the telescopic desk frame and an effect of distributing the load across the desk leg assembly 100, making the entire telescopic desk frame more reasonably loaded and overall sturdier.

[0067] In another possible implementation, as shown in FIGS. 1b, 2b, 3b, 4b and 5b, a top surface of the second upper flange 121 is lower than a top surface of the first upper flange 111, the second beam 120 includes a second desk mat 124, the second desk mat 124 is mounted on the second upper flange 121, and the first beam 110 may include a first desk mat 114 or not.

[0068] In a possible implementation, the first beam 110 may include a first desk mat 114. The first upper flange 111 and the second upper flange 121 abut against each other vertically, creating a height difference between the first beam 110 and the second beam 120. The first desk mat 114 and the second desk mat 124 are disposed respectively on a part of the first upper flange 111 that doesn't abut against the second upper flange 121 and a part of the second upper flange 121 that doesn't abut against the first upper flange 111. Moreover, there is a thickness difference between the first desk mat 114 and the desk mat 124; the thicker one is disposed at a higher position, while the thinner one is disposed at a lower position. This ensures that a top surface of the first desk mat 114 and a top surface of the second desk mat 124 are on a same horizontal plane. As a result, when the desk board is connected with the telescopic desk frame, the desk board can remain in a level state.

[0069] In some embodiments, the telescopic desk frame includes a groove, where the groove is disposed at least on the first upper flange, the first upper flange is divided into a first middle upper flange which is relatively away from ends of the beam assembly and a first end upper flange which is relative near one end of the beam assembly. The first end upper flange is higher than the first middle upper flange, where the first middle upper flange is lower than the second upper flange. For example, as shown in FIG. 2b, a groove 800 is disposed on the first upper flange 111, the first upper flange 111 is divided into a first middle upper flange 111b which is relatively away from ends of the beam assembly and a first end upper flange 111a which is relatively near one end of the beam assembly. The first end upper flange 111a is higher than the first middle upper flange 111b, where the first middle upper flange 111b is lower than the second upper flange 121. The difference between an altitude of the first end upper flange 111a and an altitude of the first middle upper flange 111b compensates for the altitude difference generated by the vertical abutment of the first beam 110 and the second beam 120. The present application does not impose limitations on the selection of protruding portion and groove; the telescopic desk frame can include at least one of the protruding portion and the groove.

[0070] At least two beam assemblies are connected with and between the first desk leg assembly 610 and the second desk leg assembly 620.

[0071] At least two beam assemblies are connected with and between the first desk leg assembly 610 and the second desk leg assembly 620, making the telescopic desk frame more stable as a whole compared to a single beam assembly. In other embodiments, only one beam assembly can be connected with and between the first desk leg assembly 610 and the second desk leg assembly 620, which can reduce manufacturing costs while ensuring the stability of the telescopic desk frame structure.

[0072] As shown in FIG. 1b, the telescopic desk frame further includes a first supporting portion 710 configured to be connected with the first desk leg assembly 610 and a second supporting portion 720 configured to be connected with the second desk leg assembly 620, where the first supporting portion 710 and the second supporting portion 720 are respectively arranged at two ends of the beam assembly.

[0073] The first supporting portion 710 and the second supporting portion 720 extend perpendicularly to the first beam assembly 110 and the second beam assembly 120 respectively, and are connected with the first desk leg assembly 610 and the second desk leg assembly 620 respectively. Both the first supporting portion 710 and the second supporting portion 720 include a horizontal plate that protrudes in an extension direction of the beam assembly. The horizontal plates support the desk board. With upper surfaces of the horizontal plates in contact with the desk board and lower surfaces of the horizontal plates in contact with the first desk leg assembly 610, the second desk leg assembly 620, and the beam assembly, the load exerted on the desk board can be partially distributed to the first desk leg assembly 610, the second desk leg assembly 620, and the beam assembly, thereby achieving overall stability of the telescopic desk frame.

[0074] In some embodiments, the telescopic desk frame may further include at least one of a third desk mat 711 and a fourth desk mat 721. The third desk mat 711 is mounted on the first supporting portion 710, and the fourth desk mat 721 is mounted on the second supporting portion 720.

[0075] The third desk mat 711 can be one or more, and the fourth desk mat 721 can also be one or more. A thickness difference between a thickness of the third desk mat 711 and a thickness of the fourth desk mat 721 exists with a upper surface of the third desk mat 711 and an upper surface of the fourth desk mat 721 on a same horizontal plane. The thickness difference compensates for the altitude difference between the first supporting portion 710 and the second supporting portion 720, ensuring that the desk board is level when connected to the telescopic desk frame.

[0076] In some embodiments, the telescopic desk frame further includes a driving unit configured to drive the desk leg assembly to rise and fall. For example, as shown in FIG. 1a, two driving units 400 are disposed respectively at two ends of the beam assembly 200 for driving the desk leg assembly 100 to rise and fall.

[0077] Each driving unit 400 includes a motor, and the driving unit 400 is connected with the desk leg assembly 100. The driving unit 400 can drive the desk leg assembly 100 to rise and fall, so that the height of the desk can be raised and lowered with the length of the desk being extendable, thus improving the applicability of the desk.

[0078] Secondly, the present application provides a desk, including two desk feet 500, a desk board and a telescopic desk frame according to any of the embodiments of the first aspect; and the telescopic desk frame is configured to be mounted on the two desk foot 500 to support the desk board.

[0079] The desk of the present application includes the telescopic desk frame as described in any embodiment of the present application, so the desk has all the beneficial effects of the telescopic desk frame as described in any embodiment of the present application, which will not be repeated here.

[0080] The above description is illustrative and not restrictive. Those skilled in the art can make changes, modifications, substitutions, and variations to the embodiments within the scope of this disclosure. Moreover, the examples (or one or more of their technical solutions) can be used in combination with each other, and considering these embodiments allows for various combinations or permutations.