Lifting table

Abstract

The present disclosure discloses a lifting table, has a tabletop plate, a table-supporting frame connected with the tabletop plate, a base, an X-shaped supporting leg for connecting the table-supporting frame and the base, and a power driving device controlling the open-and-close of the X-shaped supporting leg to achieve the lifting of the tabletop plate, the power driving device is connected to the table-supporting frame, and the power output end of the power driving device is connected with the X-shaped supporting leg; the lifting table further comprises an inclined connecting rod mechanism which always applies an oblique force to the X-shaped supporting leg; one end of the inclined connecting rod mechanism is connected to the X-shaped supporting leg, and the other end of the inclined connecting rod mechanism is connected to the power driving device.

Claims

1. A lifting table, comprising: a tabletop plate(1), a table-supporting frame connected with the tabletop plate(1), a base (2), an X-shaped supporting leg for connecting the table-supporting frame and the base (2), and a power driving device controlling the open-and-close of the X-shaped supporting leg to achieve the lifting of the tabletop plate(1), wherein the power driving device is connected to the table-supporting frame, and the power output end of the power driving device is connected with the X-shaped supporting leg; wherein the lifting table further comprises an inclined connecting rod mechanism which applies an oblique force to the X-shaped supporting leg; one end of the inclined connecting rod mechanism is connected to the X-shaped supporting leg, and the other end of the inclined connecting rod mechanism is connected to the power driving device; wherein the inclined connecting rod mechanism comprises a long connecting rod (5) and a short connecting rod (4); one end of the long connecting rod (5) is hinged to the power output end of the power driving device and the other end of the long connecting rod (5) is hinged to one end of the short connecting rod (4) respectively; the other end of the short connecting rod (4) are in fixed connection with the X-shaped supporting leg; and an included angle is always formed between the long connecting rod (5) and the power output direction of the power driving device.

2. The lifting table of claim 1, wherein the power driving device comprises a motor connecting seat (14), a motor (3), a screw rod (16), and a slider (17); the motor connecting seat (14) is connected onto the tabletop plate (1) and the motor (3) is fixedly connected onto the motor connecting seat (14); an output shaft of the motor (3) is connected with one end of the screw rod (16) through a transmission mechanism; the slider (17) is in threaded connection with the screw rod (16); the other end of the screw rod (16) is rotationally connected with the table-supporting frame while the slider (17) is hinged with one end of the long connecting rod (5).

3. The lifting table of claim 2, wherein the table-supporting frame comprises two cross beams (6) and two guide rails (15); the two cross beams (6) are connected to the front and rear side of the tabletop plate (1) respectively; the motor (3) is connected to one end of the cross beam (6), and the two guide rails (15) are respectively connected to one end of the two cross beams(6), the end of which is far away from the motor (3).

4. The lifting table of claim 3, wherein the X-shaped supporting leg comprises two X-shaped supporting sets; each X-shaped supporting set is formed by a first supporting leg (11) and a second supporting leg (12) hinged into an X-shape cross; each X-shaped supporting set consists of four supporting points: a first supporting point for the connection of the table-supporting frame and one end of the first supporting leg (11); a second supporting point for the connection of the table-supporting frame and one end of the second supporting leg (12); a third supporting point for the connection of the base (2) and the other end of the first supporting leg (11); a fourth supporting point for the connection of the base (2) and the other end of the second supporting leg (12); the second supporting points of the two X-shaped supporting sets are connected with each other through a second connecting shaft (7); the fourth supporting points of the two X-shaped supporting sets are connected with each other through a fourth connecting shaft (8); the two ends of the second connecting shaft (7) are respectively hinged into the two guide rails (15) in a sliding connection; the two ends of the fourth connecting shaft (8) are respectively hinged onto the base (2) in a sliding connection; the first supporting point is hinged to one end of the cross beam (6), the end of which close to the motor (3); the third supporting point is hinged on the base (2); one end of the short connecting rod (4) is fixedly connected to the end of the first supporting leg (11), the end of which close to the end of the tabletop plate (1).

5. The lifting table of claim 4, wherein the first supporting points of the two X-shaped supporting leg sets are connected with each other through a first connecting shaft (19); the two ends of the first connecting shaft (19) are hinged to the two cross beams (6) respectively; the two ends of the two first supporting legs (11) are fixedly connected to the outer circumferential wall of the first connecting shaft (19).

6. The lifting table of claim 3, wherein an intermediate beam (9) is arranged between the middle portions of the two cross beams (6); the two ends of the intermediate beam (9) are fixedly connected with the two cross beams (6) respectively; a hanging plate (13) is connected to the intermediate beam (9), and the other end of the screw rod (16) is hinged to the hanging plate (13).

7. The lifting table of claim 6, wherein a housing (10) is provided outside the screw rod (16) and the slider (17); the end of the housing (10) is fixedly connected with the hanging plate (13).

8. The lifting table of claim 2, wherein a tact switch (18) is arranged at the bottom of the motor (3) to prevent the motor (3) from colliding with the base (2) when the tabletop plate (1) is lowered to the lowest position; the contact point of the tact switch (18) facing to the base (2).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a structural schematic diagram of the lifting table of the present disclosure

(2) FIG. 2 is a structural schematic diagram of the lifting table of the present disclosure when inverted.

(3) FIG. 3 is a partial structural schematic diagram of the lifting table of the present disclosure.

(4) FIG. 4 is a partial structural schematic diagram of the lifting table of the present disclosure.

(5) FIG. 5 is a side elevational view of the lifting table of the present disclosure.

(6) FIG. 6 is a structural schematic diagram of the inclined connecting rod mechanism of the lifting table of the present disclosure from a folded state to an open state.

(7) Among them: 1, tabletop plate; 2, base; 3, motor; 4, short connecting rod; 5, long connecting rod; 6, cross beam; 7, second connecting shaft; 8, fourth connecting shaft; 9, intermediate beam; 10, housing; 11, first supporting leg; 12, second supporting leg; 13, hanging plate; 14, motor connecting seat; 15, guide rail; 16, screw rod; 17, slider; 18, tact switch.

DETAILED DESCRIPTION

(8) Various aspects of the illustrative embodiments of the present disclosure will be described herein using terms commonly employed by those skilled in the art.

(9) As shown in the structural schematic diagrams of the lifting table of the present disclosure in FIG. 1-FIG. 6, a lifting table comprises a tabletop plate 1, a table-supporting frame connected with the tabletop plate 1, a base 2, an X-shaped supporting leg for connecting the table-supporting frame and the base 2, and a power driving device controlling the open-and-close of the X-shaped supporting leg to achieve the lifting of the tabletop plate 1; the power driving device is connected to the table-supporting frame, and the power output end of the power driving device is connected with the X-shaped supporting leg; the lifting table further comprises an inclined connecting rod mechanism which always applies an oblique force to the X-shaped supporting leg; one end of the inclined connecting rod mechanism is connected to the X-shaped supporting leg, and the other end of the inclined connecting rod mechanism is connected to the power driving device.

(10) The inclined connecting rod mechanism comprises a long connecting rod 5 and two short connecting rods 4; one end of the long connecting rod 5 is hinged to the power output end of the power driving device and the other end of the long connecting rod 5 is hinged to one end of the two short connecting rods 4 respectively; the other ends of the two short connecting rods 4 are in fixed connection with the X-shaped supporting leg; and an included angle is always formed between the long connecting rod 5 and the power output direction of the power driving device.

(11) The power driving device comprises a motor connecting seat 14, a motor 3, a screw rod 16, and a slider 17; the motor connecting seat 14 is connected onto the tabletop plate 1 and the motor 3 is fixedly connected onto the motor connecting seat 14; an output shaft of the motor 3 is connected with one end of the screw rod 16 through a transmission mechanism; the slider 17 is in threaded connection with the screw rod 16; the other end of the screw rod 16 is rotationally connected with the table-supporting frame while the slider 17 is hinged with one end of the long connecting rod 5.

(12) The table-supporting frame comprises two cross beams 6 and two guide rails 15; the two cross beams 6 are connected to the front and rear side of the tabletop plate 1 respectively; the motor 3 is connected to one end of the cross beam 6, and the two guide rails 15 are respectively connected to one end of the two cross beams 6, the end of which is far away from the motor 3.

(13) The X-shaped supporting leg comprises two X-shaped supporting sets; each X-shaped supporting set is formed by a first supporting leg 11 and a second supporting leg 12 hinged into an X-shape cross; each X-shaped supporting set consists of four supporting points: a first supporting point for the connection of the table-supporting frame and one end of the first supporting leg 11; a second supporting point for the connection of the table-supporting frame and one end of the second supporting leg 12, a third supporting point for the connection of the base 2 and the other end of the first supporting leg 11; a fourth supporting point for the connection of the base 2 and the other end of the second supporting leg 12; the second supporting points of the two X-shaped supporting sets are connected with each other through a second connecting shaft 7; the fourth supporting points of the two X-shaped supporting sets are connected with each other through a fourth connecting shaft 8; the two ends of the second connecting shaft 7 are respectively hinged into the two guide rails 15 in a sliding connection; the two ends of the fourth connecting shaft 8 are respectively hinged onto the base 2 in a sliding connection; the first supporting point is hinged to one end of the cross beam 6, the end of which close to the motor 3; the third supporting point is hinged on the base 2; one end of the short connecting rod 4 is fixedly connected to the end of the first supporting leg 11, the end of which close to the end of the tabletop plate 1.

(14) The first supporting points of the two X-shaped supporting sets are connected with each other through a first connecting shaft 19; the two ends of the first connecting shaft 19 are hinged to the two cross beams 6 respectively; the two ends of the two first supporting legs 11 are fixedly connected to the outer circumferential wall of the first connecting shaft 19.

(15) The intermediate beam 9 is arranged between the middle portions of the two cross beams 6; the two ends of the intermediate beam 9 are fixedly connected with the two cross beams 6 respectively; a hanging plate 13 is connected to the intermediate beam 9, and the other end of the screw rod 16 is hinged to the hanging plate 13.

(16) The housing 10 is provided outside the screw rod 16 and the slider 17; the end of the housing 10 is fixedly connected with the hanging plate 13.

(17) The tact switch 18 is arranged at the bottom of the motor 3 to prevent the motor 3 from colliding with the base 2 when the tabletop plate 1 is lowered to the lowest position, the contact point of the tact switch 18 facing to the base 2.

(18) The operation process of the present disclosure: when the lifting table rises, start motor 3, and the screw rod 16 rotates to drive the slider 17 to slide on the screw rod 16 in a horizontal direction; through the force transmission of the inclined connecting rod mechanism of the long connecting rod 5 and the short connecting rod 4, the first supporting leg 11 is driven to rotate around the first supporting point, meanwhile, the second connecting shaft 7 and the fourth connecting shaft 8 slide respectively on the cross beam 6 and the base 2, so that the X-shaped supporting leg is opened, and until it reaches to an appropriate position to stop the motor. As shown in FIG. 6, the included angle ß between the first supporting leg 11 and the tabletop plate 1 in the horizontal direction increases from the folded state to the open state. Conversely, when the lifting table descends, the motor 3 is reversely activated, and the X-shaped supporting legs are folded after a series of operations of the parts in the opposite directions, and the motor is stopped until the tabletop plate 1 is lowered to a proper position. When the lifting table descends to the lowest position, the motor 3 is forced to stop by the limit of the tact switch 18 to achieve safe operation.

(19) Although certain embodiments have been illustrated and described herein for purposes of description, a wide variety of alternate and/or equivalent embodiments or implementations to achieve the same purposes may be substituted for the embodiments shown and described without departing from the scope of the present disclosure. This application is intended to cover any adaptations or variations of the embodiments discussed herein, for example, the structure of the power driving device can also be a hydraulic cylinder device instead of a screw rod and a slider; a free end of the piston rod of the hydraulic cylinder device be connected with the X-shaped support leg; or through the transmission of the gear and gear rack, the output shaft of the motor outputs power to the X-shaped support leg, that is, the gear is driven to rotate by the motor output shaft, the meshing of the gear and the gear rack makes the rack move linearly, and the end of the rack is connected with the X-shaped supporting leg, and the like.