LOWER SIDE BED FRAME OF DOUBLE-LAYER IRON FRAME BED

Abstract

A lower side bed frame of a double-layer iron frame bed comprises two transverse rods, two longitudinal rods, and four columns. An upper end of a lower column comprises a joint section formed by reducing a diameter. An upper column is sleeved on the joint section. An end surface of each of the two transverse rods is connected with a locking piece, and the locking piece abuts outer sides of the upper column and the lower column. An upper bolt enables the locking piece, the upper column, and the joint section to be locked together. A lower bolt enables the locking piece and the lower column to be locked together. Two supporting feet are located below a middle position of the two transverse rods. A connecting rod is connected between the two supporting feet and pulls the two supporting feet in a longitudinal direction.

Claims

1. A lower side bed frame of a double-layer iron frame bed, comprising two transverse rods symmetrically parallel to each other in a front-and-rear direction, two longitudinal rods symmetrically parallel to each other in a left-and-right direction, four columns arranged vertically, two supporting feet, and a connecting rod for connecting the two supporting feet, wherein: the two longitudinal rods and the two transverse rods form a rectangular frame, the four columns are respectively connected to four corners of the rectangular frame, each of the four columns comprises an upper column and a lower column that are configured be inserted together in an up-and-down direction, an upper end of the lower column comprises a joint section formed by reducing a diameter of the upper end of the lower column, the upper column is sleeved on the joint section, an end portion of each of the two longitudinal rods is fixedly connected to the lower column, an end surface of each of the two transverse rods is connected with a locking piece, the locking piece is configured to abut an outer side of the upper column and an outer side of the lower column, a first portion of the locking piece extending upwardly beyond an upper surface of each of the two transverse rods is locked with an upper bolt, the upper bolt enables the locking piece, the upper column, and the joint section to be locked together, a second portion of the locking piece extending downward beyond a lower surface of each of the two transverse rods is locked with a lower bolt, the lower bolt enables the locking piece and the lower column to be locked together, the two supporting feet are matched with the two transverse rods in a one-to-one correspondence, the two supporting feet are located below a middle position of the two transverse rods, the connecting rod is connected between the two supporting feet and is configured to pull the two supporting feet in a longitudinal direction of the lower side bed frame, and end portions of the connecting rod are detachably insertion-connected with the two supporting feet.

2. The lower side bed frame of the double-layer iron frame bed according to claim 1, wherein: the upper column is further locked with a reinforcing bolt, the reinforcing bolt enables the upper column and the joint section to be locked together, and the reinforcing bolt is located above the upper bolt.

3. The lower side bed frame of the double-layer iron frame bed according to claim 2, wherein: the lower column is disposed with pull rivets respectively corresponding to the upper bolt, the lower bolt, and the reinforcing bolt.

4. The lower side bed frame of the double-layer iron frame bed according to claim 1, wherein: the locking piece is arc-shaped to correspond to a shape of the outer side of the upper column and a shape of the outer side of the lower column.

5. The lower side bed frame of the double-layer iron frame bed according to claim 4, wherein: a left side and a right side of the locking piece respectively comprises a folded edge folded toward a corresponding one of the two transverse rods.

6. The lower side bed frame of the double-layer iron frame bed according to claim 1, wherein: a top end of each of the two supporting feet is connected with a connecting seat, the connecting seat is connected with a corresponding one of the two transverse rods, each of the two transverse rods comprises two transverse rod units configured to be spliced together, and an inner end of each of the two transverse rod units is pivotally connected to the connecting seat so that each of the two transverse rods is configured to be folded in half using a corresponding one of the two supporting feet as a center line.

7. The lower side bed frame of the double-layer iron frame bed according to claim 1, wherein: an end surface of the connecting rod comprises a U-shaped steel groove corresponding to a corresponding one of the two supporting feet, the U-shaped steel groove is clamped to the corresponding one of the two supporting feet, a tongue piece protrudes from a bottom surface of the U-shaped steel groove, the corresponding one of the two supporting feet comprises a buckle opening, and the tongue piece is configured to be inserted into the buckle opening.

8. The lower side bed frame of the double-layer iron frame bed according to claim 7, wherein: an upper edge of the tongue piece is connected to the bottom surface of the U-shaped steel groove, and the tongue piece is configured to be inserted into a lower edge of the buckle opening due to gravity.

9. The lower side bed frame of the double-layer iron frame bed according to claim 6, wherein: the connecting seat comprises a seat plate and two side plates, the top end of each of the two supporting feet is connected with the seat plate, the two side plates are symmetrically connected to two sides of the seat plate, a part of each of the two side plates extending out of the seat plate is pivotally connected with the two transverse rod units, and the two supporting feet are disposed between the two transverse rod units when the two transverse rods are folded.

10. The lower side bed frame of the double-layer iron frame bed according to claim 1, wherein: the lower side bed frame further comprises two or three longitudinal bed beams, the two or three longitudinal bed beams are connected between the two transverse rods to pull the two transverse rods in the longitudinal direction, an inner side of each of the two transverse rods is disposed with buckle seats for buckle connection to the two or three longitudinal bed beams, and the two or three longitudinal bed beams are evenly spaced apart from one another.

11. The lower side bed frame of the double-layer iron frame bed according to claim 6, wherein: the lower side bed frame further comprises two or three longitudinal bed beams, the two or three longitudinal bed beams are connected between the two transverse rods to pull the two transverse rods in the longitudinal direction, an inner side of each of the two transverse rods is disposed with buckle seats for buckle connection to the two or three longitudinal bed beams, and the two or three longitudinal bed beams are evenly spaced apart from one another.

12. The lower side bed frame of the double-layer iron frame bed according to claim 9, wherein: the lower side bed frame further comprises two or three longitudinal bed beams, the two or three longitudinal bed beams are connected between the two transverse rods to pull the two transverse rods in the longitudinal direction, an inner side of each of the two transverse rods is disposed with buckle seats for buckle connection to the two or three longitudinal bed beams, and the two or three longitudinal bed beams are evenly spaced apart from one another.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 illustrates a perspective view of a lower side bed frame of a double-layer iron frame bed.

[0019] FIG. 2 illustrates an exploded view of the lower side bed frame of the double-layer iron frame bed in FIG. 1.

[0020] FIG. 3 illustrates an enlarged view of one of four columns, one of two transverse rods, and one of two longitudinal rods in an exploded state in FIG. 1.

[0021] FIG. 4 illustrates an enlarged cross-sectional view of one of the four columns, one of the two transverse rods, and one of the two longitudinal rods in an assembled state in FIG. 1.

[0022] FIG. 5 illustrates a perspective view of one of the transverse rods and one of two supporting feet in a folded state in FIG. 1.

[0023] FIG. 6 illustrates a partially enlarged perspective view of an end surface of a connecting rod in FIG. 1.

[0024] FIG. 7 illustrates a partially enlarged perspective view of one of the two supporting feet in FIG. 1.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present disclosure will be further described below in combination with the accompanying drawings and embodiments.

[0026] Referring to FIGS. 1 to 7, a lower side bed frame of a double-layer iron frame bed comprises two transverse rods 10 symmetrically parallel to each other in a front-and-rear direction, two longitudinal rods 20 symmetrically parallel to each other in a left-and-right direction, and four columns 30 arranged vertically. The two longitudinal rods 20 and the two transverse rods 10 form a rectangular frame, and the four columns 30 are respectively connected to four corners of the rectangular frame. Each of the four columns 30 comprises an upper column 31 and a lower column 32 that can be inserted together in an up-and-down direction. An upper end of the lower column 32 comprises a joint section 321 formed by reducing a diameter of the upper end of the lower column 32, and the upper column 31 is sleeved on the joint section 321. An end portion of each of the two longitudinal rods 20 is fixedly connected (welded in this embodiment) to the lower column 32. An end surface of each of the two transverse rods 10 is connected with a locking piece 11, and the locking piece 11 is configured to abut an outer side of the upper column 31 and an outer side of the lower column 32. A first portion of the locking piece 11 extending upwardly beyond an upper surface of each of the two transverse rods 10 is locked with an upper bolt 40, and the upper bolt 40 enables the locking piece 11, the upper column 31, and the joint section 321 to be locked together. A second portion of the locking piece 11 extending downward beyond a lower surface of each of the two transverse rods 10 is locked with a lower bolt 50, and the lower bolt 50 enables the locking piece 11 and the lower column 32 to be locked together. The lower side bed frame of the double-layer iron frame bed further comprises two supporting feet 60 and a connecting rod 70 for connecting the two supporting feet 60. The two supporting feet 60 are matched with the two transverse rods 10 in a one-to-one correspondence. The two supporting feet 60 are located below a middle position of the two transverse rods 10, and the connecting rod 70 is connected between the two supporting feet 60 and is configured to pull the two supporting feet 60 in a longitudinal direction of the lower side bed frame (i.e., the front-and-rear direction). End portions of the connecting rod 70 are detachably insertion-connected with the two supporting feet 60.

[0027] Preferably, the upper column 31 is further locked with a reinforcing bolt 80. The reinforcing bolt 80 enables the upper column 31 and the joint section 321 to be locked together, and the reinforcing bolt 80 is located above the upper bolt 40.

[0028] Preferably, the lower column 32 is disposed with pull rivets respectively corresponding to the upper bolt 40, the lower bolt 50, and the reinforcing bolt 80.

[0029] Preferably, the locking piece 11 is arc-shaped to correspond to a shape of the outer side of the upper column 31 and a shape of the outer side of the lower column 32.

[0030] Preferably, a left side and a right side of the locking piece 11 respectively comprises a folded edge 12 folded toward a corresponding one of the two transverse rods 10.

[0031] Preferably, a top end of each of the two supporting feet 60 is connected with a connecting seat 61, and the connecting seat 61 is connected with a corresponding one of the two transverse rods 10. Each of the two transverse rods 10 comprises two transverse rod units 10-1 spliced together. An inner end of each of the two transverse rod units 10-1 is pivotally connected to the connecting seat 61, so that each of the two transverse rods 10 can be folded in half using a corresponding one of the two supporting feet 60 as a center line.

[0032] Preferably, an end surface of the connecting rod 70 comprises a U-shaped steel groove 71 corresponding to a corresponding one of the two supporting feet 60. The U-shaped steel groove 71 is clamped to the corresponding one of the two supporting feet 60. A tongue piece 72 protrudes from a bottom surface of the U-shaped steel groove 71, the corresponding one of the two supporting feet 60 comprises a buckle opening 62, and the tongue piece 72 is inserted into the buckle opening 62.

[0033] Preferably, an upper edge of the tongue piece 72 is connected to the bottom surface of the U-shaped steel groove 71, and the tongue piece 72 is inserted into a lower edge of the buckle opening 62 due to gravity.

[0034] Preferably, the connecting seat 61 comprises a seat plate 611 and two side plates 612, and the top end of each of the two supporting feet 60 is connected with the seat plate 611. The two side plates 612 are symmetrically connected to two sides of the seat plate 611. A part of each of the two side plates 612 extending out of the seat plate 611 is pivotally connected with the two transverse rod units 10-1, and the two supporting feet 60 are disposed between the two transverse rod units 10-1 when the two transverse rods 10 are folded.

[0035] Preferably, the lower side bed frame further comprises two or three longitudinal bed beams 90, and the two or three longitudinal bed beams 90 are connected between the two transverse rods 10 to pull the two transverse rods 10 in the longitudinal direction. An inner side of each of the two transverse rods 10 is disposed with buckle seats 13 for buckle connection to the two or three longitudinal bed beams 90. The two or three longitudinal bed beams 90 are evenly spaced apart from one another.

[0036] The aforementioned embodiments are merely some embodiments of the present disclosure, and the scope of the disclosure is not limited thereto. Thus, it is intended that the present disclosure cover any modifications and variations of the presently presented embodiments provided they are made without departing from the appended claims and the specification of the present disclosure.