Iron bed cross rod and side rod connecting structure capable of improving stability

Abstract

The utility model discloses an iron bed cross bar and side bar connecting structure capable of improving stability, which comprises a detachable bed head frame, a bed tail frame and a bed surface frame, the bed surface frame comprises a left side bar, a right side bar and a plurality of cross bars erected between the left side bar and the right side bar, and a plurality of pairs of caulking grooves are correspondingly formed in the upper parts of the inner sides of the left side bar and the right side bar. The caulking groove comprises an inner vertical wall, a horizontal supporting part and a side wall; a blocking part is arranged at the upper part of the inner vertical wall; embedding and clamping parts matched with the embedding grooves are arranged at the two ends of the transverse rod correspondingly, embedding and clamping mechanisms are arranged on the embedding and clamping parts, and each embedding and clamping mechanism comprises an inclined face which is arranged on the outer end face of the corresponding embedding and clamping part and inclines downwards and inwards and a limiting step arranged on the upper portion of the corresponding embedding and clamping part; the distance between the outer edges of the upper portions of the inclined faces of the two embedding and clamping parts is 2-20 mm larger than the distance between the blocking and clamping parts of the two corresponding embedding grooves. The distance between the outermost side faces of the two limiting steps is equal to or smaller than the distance between the inner vertical walls of the two corresponding caulking grooves. The transverse rods and the side rods are connected into a whole, and the connecting structure becomes stable.

Description

Technical Field

[0001] The utility model relates to the field of iron beds, in particular to a connecting structure between a cross bar and a side bar of an iron bed for improving stability. Background Art

[0002] There is an iron frame bed on the market, the structure of which consists of a detachable head frame, a foot frame and a bed surface frame. The bed surface frame includes two side bars on the left and right sides and a plurality of cross bars arranged between the two side bars. A plurality of pairs of slots are correspondingly opened in the upper inner sides of the two side bars on the left and right sides. The two ends of the cross bar are respectively placed in the slots. The disadvantage of the connecting structure between the cross bar and the side bar of this structure of iron frame bed is that since the two ends of the cross bar are directly placed in the slots, the connection between the cross bar and the side bar is loose. After the cross bars are assembled, a stable bed surface frame body cannot be formed, and the cross bars are easily separated from the slots of the side bars, and the connection is not reliable. Summary of the Invention

[0003] In order to solve the above problems, the utility model provides a connecting structure between a cross bar and a side bar of an iron bed for improving connection stability.

[0004] In order to achieve the above object, the technical solution adopted by the utility model is: a connecting structure between a cross bar and a side bar of an iron bed for improving stability, including a detachable head frame, a foot frame and a bed surface frame. The bed surface frame includes two side bars on the left and right sides and a plurality of cross bars arranged between the two side bars. A plurality of pairs of slots are correspondingly opened in the upper inner sides of the two side bars on the left and right sides. The slot includes an inner vertical wall, a horizontal supporting part and a side wall. A blocking part is arranged on the upper part of the inner vertical wall; the two ends of the cross bar are respectively provided with a clamping part adapted to the slot. The clamping part is provided with a clamping mechanism. The clamping mechanism includes an inclined surface arranged on the outer end surface of the clamping part and inclined downward and inward and a limiting step arranged on the upper part of the clamping part. The distance between the outer edges of the upper parts of the inclined surfaces of the two clamping parts is 2 mm - 20 mm larger than the distance between the blocking parts of the corresponding two slots; the distance between the outermost side surfaces of the two limiting steps is equal to or less than the distance between the inner vertical walls of the corresponding two slots.

[0005] Further, the clamping mechanism includes a nested part sleeved on the two ends of the cross bar. The nested part is tightly and fittingly sleeved on the two ends of the cross bar. The nested part is made of plastic material or metal material.

[0006] Alternatively, the clamping mechanism includes a nested part sleeved on the two ends of the cross bar. The nested part is fixed to the upper parts of the two ends of the cross bar by welding or screw connection. The nested part is made of metal material.

[0007] Alternatively, the clamping part is integrally formed. A sleeve insertion part is arranged at the inner end of the integrally formed clamping part. The side bar is made of a hollow pipe fitting with a rectangular cross section. The clamping part is sleeved in the pipe cavities at the two ends of the cross bar through the sleeve insertion part.

[0008] Alternatively, the card-inserting part may include limiting blocks fixed to the upper parts of both ends of the cross bar. The limiting blocks may be integrally formed with the cross bar, or independently manufactured and then fixed to the upper part of the cross bar by welding or screwing.

[0009] Further, the two side bars on the left and right are made of hollow pipe fittings with a rectangular cross-section, and the inner vertical wall is set as the blocking part; the horizontal supporting part and the side wall are respectively made of the pipe wall after grooving the hollow pipe fitting.

[0010] The two side bars on the left and right are made of solid rods with a rectangular cross-section. The inner vertical wall includes a first inner vertical wall at the upper part and a second inner vertical wall which is bent inward at a right angle and arranged at the lower part of the first inner vertical wall. The first inner vertical wall is set as the blocking part.

[0011] The connection principle of the present utility model: By pressing down the card-inserting part, the side bars are elastically extruded to expand outward. When the upper parts of the inclined surfaces of the two card-inserting parts drop below the blocking part and lose the block, the two side bars rebound, and the limiting steps abut against the blocking part provided at the upper part of the inner vertical wall, locking the upper parts of the inclined surfaces of the card-inserting part below the blocking part to prevent the cross bar from disengaging from the insertion grooves of the side bars.

[0012] The beneficial technical effects of the present utility model: Make the connection between the cross bar and the side bars form an integral whole, and the connection structure becomes stable. Description of the Drawings

[0013] Figure 1 is a partial structural schematic diagram of the side bar of an embodiment of the present utility model;

[0014] Figure 2 is a partial sectional structural schematic diagram when the cross bar and the side bar are matched in the first embodiment of the present utility model;

[0015] Figure 3 is a partial sectional structural schematic diagram when the cross bar and the limiting block are matched in the second embodiment of the present utility model;

[0016] Figure 4 is a partial sectional structural schematic diagram when the card-inserting part and the side bar are matched in the third embodiment of the present utility model;

[0017] Figure 5 is a partial structural schematic diagram of the cross bar and the side bar in the fourth embodiment of the present utility model. Detailed Description of the Invention

[0018] Embodiment 1: As Figure 1-2As shown in the figure, the utility model relates to a connecting structure between a crossbar and a side bar of an iron bed for improving stability, which includes a detachable headstock, a footstock and a bed surface frame. The bed surface frame includes two side bars 1 on the left and right sides and multiple crossbars 2 arranged between the two side bars 1. Multiple pairs of embedding grooves 5 are correspondingly opened in the upper inner sides of the two side bars 1 on the left and right sides. The embedding groove 5 includes an inner vertical wall 51, a horizontal supporting part 52 and a side wall 53. A blocking part is arranged on the upper part of the inner vertical wall 51; Embedding parts adapted to the embedding grooves 5 are respectively arranged at both ends of the crossbar 2, and an embedding mechanism is arranged on the embedding part. The embedding mechanism includes an inclined surface 4 which is arranged downward and inward on the outer end surface of the embedding part and a limiting step 6 which is arranged on the upper part of the embedding part. The distance between the outer edges of the upper parts of the inclined surfaces 4 of the two embedding parts is 2 mm - 20 mm larger than the distance between the blocking parts of the corresponding two embedding grooves 5, such as 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm; The distance between the two limiting steps 6 is equal to or less than the distance between the inner vertical walls 51 of the corresponding two embedding grooves 5.

[0019] In this embodiment, the embedding mechanism includes sleeves 3 sleeved at both ends of the crossbar 2, and the sleeves 3 are tightly and fittingly sleeved at both ends of the crossbar 2.

[0020] In this embodiment, the two side bars 1 on the left and right sides are made of hollow pipe fittings with a rectangular cross-section, and the inner vertical wall 51 is set as the blocking part; The horizontal supporting part 52 and the side wall 53 are respectively made of the pipe walls after the hollow pipe fittings are grooved.

[0021] In this embodiment, the sleeve 3 is preferably made of plastic material. The sleeve 3 can also be made of metal material and fixed to both ends of the crossbar 2 by welding or screw fixing.

[0022] During installation, after the headstock, the footstock and the two side bars 1 of the bed surface frame are installed, the two ends of the crossbar 2 are respectively placed into the corresponding embedding grooves 5, and pressed down slightly with a little force. The inclined surface 4 and the inner vertical walls 51 of the two embedding grooves 5, by pressing down the embedding part, elastically extrude the side bar 1 to expand it outward. When the upper parts of the inclined surfaces of the two embedding parts drop below the blocking part and lose the block, the two side bars 1 rebound, and the limiting step abuts against the blocking part arranged on the upper part of the inner vertical wall, locking the upper part of the inclined surface of the embedding part below the blocking part to prevent the crossbar from detaching from the embedding groove 5 of the side bar 1.

[0023] Embodiment 2: As Figure 3 As shown in the figure, in Embodiment 1, the embedding part includes a limiting block 7 fixed on the upper parts of both ends of the crossbar 2. The limiting block 7 can be integrally made with the crossbar 2, or the limiting block 7 is independently made and then fixed to the upper part of the crossbar 2 by welding or screw fixing. In this embodiment, the limiting block 7 can be made of plastic material or metal material.

[0024] Embodiment 3: As Figure 4As shown, in the first embodiment, the card-inserting part is integrally formed. The inner end of the integrally formed card-inserting part is provided with a sleeve-inserting part 54. The side rod 1 is made of a hollow pipe fitting with a rectangular cross-section. The card-inserting part is sleeved in the two end cavities of the cross bar 2 through the sleeve-inserting part 54. In this embodiment, the card-inserting part can be made of a metal material or a plastic material.

[0025] Embodiment 4: In the above-mentioned first to third embodiments, as Figure 5 shown, the left and right side rods 1 are made of solid metal bars. The inner vertical wall 51 may include a first inner vertical wall 55 provided at the upper part and a second inner vertical wall 56 provided at the lower part of the first inner vertical wall 55 and bent inward at a right angle. The first inner vertical wall 55 is set as a blocking part.

[0026] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A connecting structure between the crossbar and the side bar of an iron bed for improving stability, comprising a detachable headstock, a footstock and a bed surface frame. The bed surface frame includes two side bars (1) on the left and right sides and multiple crossbars (2) arranged between the two side bars. Multiple pairs of embedding grooves (5) are correspondingly formed in the upper inner sides of the two side bars (1) on the left and right sides. The embedding groove (5) includes an inner vertical wall (51), a horizontal supporting portion (52) and a side wall (53), and is characterized in that: A retaining and blocking part is provided at the upper part of the inner vertical wall (51); engaging and clamping parts adapted to the engaging grooves (5) are respectively provided at both ends of the cross bar (2), and an engaging and clamping mechanism is provided on the engaging and clamping parts. The engaging and clamping mechanism includes an inclined surface (4) which is downward and inwardly inclined and provided on the outer end surface of the engaging and clamping part, and a limiting step (6) provided on the upper part of the engaging and clamping part. The distance between the upper outer edges of the inclined surfaces (4) of the two engaging and clamping parts is 2 mm - 20 mm larger than the distance between the retaining and blocking parts of the corresponding two engaging grooves (5); the distance between the two limiting steps (6) is equal to or less than the distance between the inner vertical walls (51) of the corresponding two engaging grooves (5).

2. The connecting structure between the crossbar and the side bar of the iron bed for improving stability according to claim 1, characterized in that: The engaging and clamping mechanism includes sleeves (3) sleeved on both ends of the cross bar (2), and the sleeves (3) are tightly and fittingly sleeved on both ends of the cross bar (2).

3. The connecting structure between the crossbar and the side bar of the iron bed for improving stability according to claim 1, characterized in that: The engaging and clamping mechanism includes sleeves (3) sleeved on both ends of the cross bar (2), and the sleeves (3) are fixed to both ends of the cross bar (2) by welding.

4. The connecting structure between the cross bar and the side bar of the iron bed for improving stability according to claim 3, characterized in that: The sleeves (3) are made of plastic materials or metal materials.

5. The connecting structure between the crossbar and the side bar of the iron bed for improving stability according to claim 1, characterized in that: The engaging and clamping parts are integrally formed. A socket part (54) is provided at the inner end of the integrally formed engaging and clamping parts. The side bar (1) is made of a hollow pipe fitting with a rectangular cross section. The engaging and clamping parts are socketed into the pipe cavities at both ends of the cross bar (2) through the socket part (54).

6. The connecting structure between the cross bar and the side bar of the iron bed for improving stability according to claim 1, characterized in that: The engaging and clamping parts include limiting blocks (7) fixed to the upper parts of both ends of the cross bar (2). The limiting blocks (7) are either integrally formed with the cross bar (2) or independently formed and then fixed to the upper part of the cross bar (2) by welding or screwing.

7. The connecting structure between the crossbar and the side bar of the iron bed for improving stability according to claim 1, characterized in that: The two left and right side bars (1) are made of hollow pipe fittings with a rectangular cross section. The inner vertical wall (51) is provided as a retaining and blocking part; the horizontal supporting part (52) and the side wall (53) are respectively made of the pipe walls after the hollow pipe fittings are grooved.

8. A connecting structure between the cross bar and the side bar of an iron bed for improving stability according to claim 1, characterized in that: The two left and right side bars (1) are made of solid rods with a rectangular cross section. The inner vertical wall (51) includes a first inner vertical wall (55) at the upper part and a second inner vertical wall (56) which is inwardly and perpendicularly bent and provided at the lower part of the first inner vertical wall (55). The first inner vertical wall (55) is provided as a retaining and blocking part.

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