Bed frame connecting bushing cap and bed frame

Abstract

This utility model relates to a bushing cap for connecting bed frames. The inner hole of the bushing cap allows the end of the transverse rod to pass through. The outer wall of the bushing cap can be embedded in the slot of the longitudinal tube. The edge of the bushing cap can abut against the outer wall of the slot of the longitudinal tube facing the transverse rod, thereby limiting the axial movement of the transverse rod towards the longitudinal tube. By covering the end of the transverse rod with the bushing cap and connecting it to the slot of the longitudinal tube, the bushing cap isolates the end of the transverse rod from the longitudinal tube, avoiding friction and noise caused by a rigid connection between the two metal parts. This effectively reduces friction noise between the transverse rod and the longitudinal tube, reduces damage caused by contact between the transverse rod and the longitudinal tube, has a good buffering effect, and improves the service life of the transverse rod and the longitudinal tube. The isolation connection with the bushing cap makes it less likely for the transverse rod and the longitudinal tube to wear and deform after repeated disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a bed frame with a fixed frame and bed frame components. Background Technology

[0002] The bed frame has several intermittently spaced transverse rods between its two longitudinal tubes. The bed board is supported by these transverse rods and the two longitudinal tubes. In the prior art, several slots are set on the side and top walls of the longitudinal tubes, and the two ends of the transverse rods are inserted into the slots on the longitudinal tubes to connect the rods to the two longitudinal tubes and prevent the transverse rods from detaching from the two longitudinal tubes. However, this method is prone to causing one end of the transverse rod to detach from the corresponding longitudinal tube because there is no limiting between the transverse rod and the slot. To address this, Chinese Patent No. CN206102172U discloses a new transverse rod connection structure and bed frame. The transverse rod is positioned and connected between the mounting block and the insertion hole of the longitudinal tube. The transverse rod and the longitudinal tube are in direct contact, and since both the transverse rod and the longitudinal tube are metal parts, friction noise occurs when they are connected. The rigid contact also causes significant damage to the transverse rod and the longitudinal tube. Utility Model Content

[0003] In view of this, the present invention provides a bushing cap for connecting bed frames and a bed frame, to solve one of the problems in the prior art where direct contact between the transverse rod and the longitudinal tube leads to easy damage.

[0004] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes:

[0005] A bushing cap for connecting bed frames, wherein the inner hole of the bushing cap allows the end of the transverse rod to pass through;

[0006] The outer wall of the bushing cap can be embedded in the slot of the longitudinal tube;

[0007] The edge of the bushing cap can abut against the outer wall of the slot facing the transverse rod in the slot of the longitudinal tube, in order to limit the axial movement of the transverse rod in the direction of the longitudinal tube.

[0008] Furthermore, the upper wall of the bushing cap is provided with a limiting eave extending along the outer wall surface of the upper tube wall of the longitudinal tube. The limiting eave can abut against the outer wall surface of the upper tube wall of the longitudinal tube to limit the relative height between the upper surface of the transverse rod and the outer wall surface of the upper tube wall of the longitudinal tube.

[0009] Furthermore, a locking oblique protrusion is provided on the outer wall surface of the bushing cap away from the cap opening. The upper plane of the locking oblique protrusion is parallel to the lower plane of the limiting eave. The gap between the locking oblique protrusion and the limiting eave can be used to accommodate the upper tube wall of the longitudinal tube.

[0010] Furthermore, the distance between the inclined surface of the locking convex protrusion and the outer wall surface of the bushing cap away from the cap opening gradually decreases from top to bottom, which facilitates the smooth transition of the end of the transverse rod from the slot facing upward into the slot of the longitudinal tube into the slot of the longitudinal tube.

[0011] Furthermore, locking grooves are provided on both the left and right side walls of the bushing cap. The extension direction of the locking grooves is perpendicular to the upper wall of the cap opening of the bushing cap, and the locking grooves are set to fit the edge of the cap opening. The locking grooves are used to accommodate the pipe wall edges of the two opposite side walls of the longitudinal tube in the slot facing the transverse rod, preventing the bushing cap from falling off from the slot facing the transverse rod.

[0012] Furthermore, the inner hole of the bushing cap is a blind hole.

[0013] Furthermore, the cross-section of the inner hole of the bushing cap is square.

[0014] Furthermore, the width and height of the square cross-section of the inner hole of the bushing cap are 10.2×20.2mm; the width and height of the square cross-section of the transverse rod are 10×20mm.

[0015] A bed frame is provided, wherein a plurality of transverse rods are installed at intervals between two longitudinal tubes of the bed frame, and the bed frame further includes the aforementioned bed frame connecting bushing caps; the longitudinal tubes are provided with slots corresponding to the transverse rods, and the two ends of the transverse rods are fitted with bushing caps and then embedded in the corresponding slots on the longitudinal tubes through the bushing caps.

[0016] Implementing the embodiments of this utility model will have the following beneficial effects:

[0017] This embodiment connects the transverse rod to the longitudinal tube by covering the end of the transverse rod with a bushing cap. The bushing cap isolates the end of the transverse rod from the longitudinal tube, preventing friction and noise caused by a rigid connection between the two metal parts. This effectively reduces friction noise between the transverse rod and the longitudinal tube, reduces damage caused by contact between the two parts, provides good buffering, and improves the service life of the transverse rod and the longitudinal tube. The isolation connection of the bushing cap makes it less likely for the transverse rod and the longitudinal tube to wear and deform after repeated disassembly and assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a partial schematic diagram of the bushing cap for connecting the bed frame of this utility model, along with the transverse rod and longitudinal tube;

[0020] Figure 2 This is a schematic diagram of the structure of the bushing cap for connecting the bed frame according to this utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of the bushing cap for connecting the bed frame according to this utility model. Figure 2 ;

[0022] Figure 4 This is a side view of the bushing cap for connecting the bed frame according to this utility model;

[0023] Figure 5 This is a bottom view of the bushing cap for connecting the bed frame according to this utility model;

[0024] Figure 6 This is a partial sectional view of the bushing cap for connecting the bed frame of this utility model, along with the transverse rod and longitudinal tube;

[0025] Figure 7 This is a schematic diagram of the bed frame structure of this utility model.

[0026] In the picture:

[0027] 1. Bushing cap; 10. Inner hole; 11. Cap opening edge; 12. Limiting visor; 13. Locking oblique protrusion; 14. Locking groove; 15. Outer wall surface away from the cap opening; 16. Side wall surface; 2. Longitudinal tube; 20. Slot; 21. Upper tube wall; 3. Transverse bar; 30. End; 4. Headboard; 5. Footboard. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] See appendix Figure 1 -Appendix Figure 6 This embodiment discloses a bushing cap for connecting bed frames. The inner hole 10 of the bushing cap 1 allows the end 30 of the transverse rod 3 to pass through. The outer wall of the bushing cap 1 can be embedded in the slot 20 of the longitudinal tube 2. The edge 11 of the cap opening of the bushing cap 1 can abut against the outer wall of the slot 20 of the longitudinal tube 2 facing the transverse rod 3, in order to restrict the transverse rod 3 from axially moving in the direction of the longitudinal tube 2.

[0032] Specifically, the bed frame connecting bushing cap is mainly used to connect the transverse rod 3 and the longitudinal tube 2, which are made of metal, to avoid direct contact between the transverse rod 3 and the longitudinal tube 2, reducing wear caused by the rigid connection of the two metal parts. In this embodiment, the longitudinal tube 2 is a square tube, the slot 20 is a groove structure opened at the adjacent tube wall, the transverse rod 3 is a square rod, and the cross-sectional shape of the inner hole 10 corresponds to the shape of the transverse rod 3. In this embodiment, the cross-sectional shape of the inner hole 10 is set to square, and the width and height of the square cross-section of the inner hole 10 of the bushing cap 1 is 10.2×20.2mm; the width and height of the square cross-section of the transverse rod 3 is 10×20mm. The small gap makes it easy for the bushing cap 1 to cover the end 30 of the transverse rod 3, and makes it easy for the bushing cap 1 to fall off after it is covered on the end 30 of the transverse rod 3. In this embodiment, the inner hole 10 of the bushing cap 1 is a blind hole, which is suitable for the transverse rod 3. The end 30 of the rod 3 is laterally limited, and the opening edge of the inner hole 10 is chamfered. The bushing cap 1 is fitted over the end 30 of the transverse rod 3. In this embodiment, the depth of the inner hole 10 of the bushing cap 1 is greater than or equal to the lateral depth of the slot 20, so that after the end 30 of the transverse rod 3 covered with the bushing cap 1 is connected to the slot 20, the transverse rod 3 and the longitudinal tube 2 cannot directly contact each other. The bushing cap 1 isolates the end 30 of the transverse rod 3 and the longitudinal tube 2, avoiding the friction and noise caused by the rigid connection between the two metal parts. It effectively reduces the friction noise between the transverse rod 3 and the longitudinal tube 2, reduces the damage caused by the contact between the transverse rod 3 and the longitudinal tube 2, has a good buffering effect, and improves the service life of the transverse rod 3 and the longitudinal tube 2. The isolation connection of the bushing cap 1 makes it less likely for the transverse rod 3 and the longitudinal tube 2 to wear and deform after repeated disassembly and assembly.

[0033] In the existing bed frame structure, the distance between the two longitudinal tubes 2 and the length of the transverse rod 3 are fixed. Since the longitudinal tube 2 is a hollow tubular structure, the slot 20 itself does not have a groove wall. In order to prevent the transverse rod 3 from being inserted into the interior of the longitudinal tube 2 along the slot 20 during installation, which would prevent the other end of the transverse rod 3 from being properly connected to the slot 20 of the corresponding longitudinal tube 2, this embodiment provides a cap edge 11 at the cap opening of the bushing cap 1. When the bushing cap 1 is inserted into the slot 20, the cap edge 11 abuts against the outer wall of the slot opening of the slot 20 of the longitudinal tube 2 facing the transverse rod 3, thereby achieving the transverse positioning of the transverse rod 3 perpendicular to the longitudinal tube 2. This prevents the transverse rod 3 from continuing to penetrate the transverse depth of the slot 20, thus allowing both ends of the transverse rod 3 to be connected to the longitudinal tube 2.

[0034] To further improve the connection stability between the bushing cap for connecting the bed frame and the slot 20 of the longitudinal tube 2, and to prevent the end 30 of the transverse rod 3 from sinking into the longitudinal tube 2 along the vertical direction of the slot 20 after installation, the upper wall of the bushing cap 1 in this embodiment is provided with a limiting eave 12 extending along the outer wall surface of the upper tube wall 21 of the longitudinal tube 2. The limiting eave 12 can abut against the outer wall surface of the upper tube wall 21 of the longitudinal tube 2 to limit the contact between the upper surface of the transverse rod 3 and the outer wall surface of the upper tube wall 21 of the longitudinal tube 2. Regarding the height, specifically, the limiting eaves 12 is a three-sided extension structure of the upper wall of the bushing cap 1. When the bushing cap 1 is embedded in the slot 20 of the longitudinal tube 2, the lower plane of the limiting eaves 12 is attached to the outer wall of the upper tube wall 21 of the longitudinal tube 2, thereby inserting the end 30 of the transverse rod 3 downward into the interior of the longitudinal tube 2. When the transverse rod 3 is mounted on the two longitudinal tubes 2, the relative height between the upper surface of the transverse rod 3 and the outer wall of the upper tube wall 21 of the longitudinal tube 2 remains unchanged, so as to stably support the bed board of the bed frame.

[0035] Furthermore, the outer wall surface 15 of the bushing cap 1 away from the cap opening is provided with a locking oblique protrusion 13. The upper plane of the locking oblique protrusion 13 is parallel to the lower plane of the limiting eave 12. The gap between the locking oblique protrusion 13 and the limiting eave 12 can be used to accommodate the upper tube wall 21 of the longitudinal tube 2. When the bushing cap 1 is inserted into the slot 20, the upper tube wall 21 of the longitudinal tube 2 is placed in the gap between the locking oblique protrusion 13 and the limiting eave 12. That is, the locking oblique protrusion 13 and the limiting eave 12 jointly engage the upper tube wall 21 of the longitudinal tube 2, thereby preventing the bushing cap 1 from disengaging upward from the slot 20 and improving the connection stability between the transverse rod 3 and the longitudinal tube 2. The locking oblique protrusion 13 can be provided in one, two or even more depending on the actual size of the bushing cap 1. To ensure that after the bushing cap 1 is inserted into the slot 20, the upper tube wall 21 of the longitudinal tube 2 can be positioned between the locking oblique protrusion 13 and the limiting eave 12; in this embodiment, the distance between the lower plane of the limiting eave 12 and the outer wall surface of the lower wall of the bushing cap 1 is equal to the vertical depth of the slot 20 of the longitudinal tube 2, that is, while the locking oblique protrusion 13 and the limiting eave 12 engage with the upper tube wall 21 of the longitudinal tube 2, the outer wall surface of the lower wall of the bushing cap 1 abuts against the edge of the tube wall at the slot opening of the longitudinal tube 2, so as to improve the connection stability between the bushing cap 1 and the longitudinal tube 2.

[0036] See appendix Figure 3 -Appendix Figure 4In order to enable the locking convex 13 and the limiting eaves 12 to quickly engage with the upper tube wall 21 of the longitudinal tube 2 when the bushing cap 1 is inserted into the slot 20 of the longitudinal tube 2 from top to bottom, thus completing the quick insertion of the bushing cap 1, the distance between the inclined surface of the locking convex 13 and the outer wall surface 15 of the bushing cap 1 away from the cap opening gradually decreases from top to bottom. When the bushing cap 1 is inserted into the slot 20 from top to bottom, the inclined surface of the locking convex 13 first contacts the upper edge of the slot opening of the slot 20. By pressing the bushing cap 1 downward, the locking convex 13 and the limiting eaves 12 can engage with the upper tube wall 21 of the longitudinal tube 2 together. This facilitates the smooth transition of the end 30 of the transverse rod 3 from the upward-facing slot opening of the slot 20 of the longitudinal tube 2 into the slot 20 of the longitudinal tube 2.

[0037] See appendix Figure 3 -Appendix Figure 6 Since the longitudinal tube 2 is a metal part, after slots 20 are opened on the adjacent side walls, the tube walls of the longitudinal tube 2 on the left and right opposite side walls of the slot facing the transverse rod 3 of the slot 20 will move closer to each other. Based on this, locking grooves 14 are provided on the left and right side walls 16 of the bushing cap 1. The extension direction of the locking grooves 14 is perpendicular to the upper wall of the cap opening of the bushing cap 1, and the locking grooves 14 are set to fit the edge 11 of the cap opening. The locking grooves 14 are used to accommodate the tube walls of the longitudinal tube 2 on the left and right opposite side walls of the slot facing the transverse rod 3 of the slot 20, preventing the bushing cap 1 from falling off from the slot facing the transverse rod 3 of the slot 20, thereby further improving the connection stability between the bushing cap 1 and the longitudinal tube 2.

[0038] In this embodiment, the bushing cap 1 is made of nylon and fiberglass materials. Specifically, it is made of a mixture of 80% nylon and 20% fiberglass to improve the stability, heat resistance, and aging resistance of the bushing cap 1. The fiberglass material can further reduce the shrinkage rate of the bushing cap 1 and improve its rigidity and impact resistance. The bushing cap 1, made of nylon and fiberglass, transforms the rigid connection between the longitudinal tube 2 and the transverse bar 3 of the bed frame into a non-rigid connection, making the two metal parts of the transverse bar 3 and the longitudinal tube 2 less prone to damage and improving their service life. In addition, the bushing cap 1, made of nylon and fiberglass, can effectively reduce the noise generated by the connection between the longitudinal tube 2 and the transverse bar 3, so that when the user rolls on the bed frame with this bushing cap, the bed frame will not produce noise, effectively improving the user's sleep experience.

[0039] See appendix Figure 7Other embodiments also provide a bed frame, in which several transverse rods 3 are installed at intervals between two longitudinal tubes 2 of the bed frame. The bed frame also includes the aforementioned bed frame connecting bushing caps, a headboard 4 and a footboard 5 for connecting the two ends of the longitudinal tubes 2; slots 20 are provided on the longitudinal tubes 2 corresponding to the transverse rods 3, and the two ends 30 of the transverse rods 3 are fitted with bushing caps 1 and then embedded in the corresponding slots 20 on the longitudinal tubes 2 through the bushing caps 1.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A bushing cap for bed frame connection, characterized in that: The inner hole of the bushing cap allows the end of the transverse rod to pass through; The outer wall of the bushing cap can be embedded in the slot of the longitudinal tube; The edge of the bushing cap can abut against the outer wall of the slot facing the transverse rod in the slot of the longitudinal tube, in order to limit the axial movement of the transverse rod in the direction of the longitudinal tube.

2. The bushing cap for bed frame connection according to claim 1, characterized in that, The upper wall of the bushing cap is provided with a limiting eave extending along the outer wall surface of the upper tube wall of the longitudinal tube. The limiting eave can abut against the outer wall surface of the upper tube wall of the longitudinal tube to limit the relative height between the upper surface of the transverse rod and the outer wall surface of the upper tube wall of the longitudinal tube.

3. The bushing cap for bed frame connection according to claim 2, characterized in that, The outer wall surface of the bushing cap away from the cap opening is provided with a locking oblique protrusion. The upper plane of the locking oblique protrusion is parallel to the lower plane of the limiting eave. The gap between the locking oblique protrusion and the limiting eave can be used to accommodate the upper tube wall of the longitudinal tube.

4. The bushing cap for bed frame connection according to claim 3, characterized in that, The distance between the inclined surface of the locking convex protrusion and the outer wall surface of the bushing cap away from the cap opening gradually decreases from top to bottom, which facilitates the smooth transition of the end of the transverse rod from the slot facing upward into the slot of the longitudinal tube into the slot of the longitudinal tube.

5. The bushing cap for bed frame connection according to claim 4, characterized in that, The bushing cap has locking grooves on both the left and right side walls. The locking grooves extend perpendicularly to the upper wall of the cap opening and are fitted to the edge of the cap opening. The locking grooves are used to accommodate the pipe wall edges of the longitudinal tube on the left and right opposite side walls of the slot facing the transverse rod, preventing the bushing cap from falling off from the slot facing the transverse rod.

6. The bushing cap for bed frame connection according to claim 4, characterized in that, The inner hole of the bushing cap is a blind hole.

7. The bushing cap for bed frame connection according to claim 4, characterized in that, The inner hole of the bushing cap has a square cross-section.

8. The bushing cap for bed frame connection according to claim 7, characterized in that, The inner hole of the bushing cap has a square cross-section with a width and height of 10.2 × 20.2 mm; the cross-section of the transverse rod has a square cross-section with a width and height of 10 × 20 mm.

9. A bed frame, wherein a plurality of transverse rods are spaced apart between two longitudinal tubes of the bed frame, characterized in that, The bed frame further includes a bushing cap for connecting the bed frame as described in any one of claims 1-8; the longitudinal tube has a slot corresponding to the transverse rod, and the two ends of the transverse rod are fitted with the bushing cap and then embedded in the corresponding slot on the longitudinal tube through the bushing cap.

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