A telescopic support for a folding bed

Abstract

The utility model belongs to the technical field of folding bed, disclose a kind of telescopic support frame for folding bed, including the telescopic bed frame of being installed in the bottom of folding bed bed board;Telescopic bed frame includes fixed tube, and the both ends of fixed tube are slidably inserted with extension pipe, and the bottom of the one end of two extension pipes away from fixed tube is detachably installed with supporting leg, and the both ends of fixed tube are provided with locking member for fixing extension pipe and fixed tube, the utility model can extend supporting leg from the bottom of folding bed bed board by the sliding cooperation of fixed tube and extension pipe, increase support area, so that folding bed is more stable, reliable when using, complete tightness operation, and the locking force of threaded connection can ensure that extension pipe and fixed tube are stably fixed, avoid sliding.

Description

Technical Field

[0001] This utility model relates to the field of folding bed technology, and in particular to a retractable support frame for folding beds. Background Technology

[0002] A folding bed is a type of bed with a foldable structure. Its core advantage lies in its ability to change its form through folding: when not in use, it can be compactly folded using hinges, telescopic designs, etc., greatly reducing its size and making it easy to store and move; when in use, it can be quickly unfolded into a stable bed structure.

[0003] For example, Chinese utility model patent CN208807943U discloses an electric folding bed, which includes a bed frame. A bed frame is provided on the upper part of the bed frame and is hinged to the bed frame. One end of an electric push rod is connected to the bed frame below the bed frame. The other end of the electric push rod is hinged to one end of a first connecting rod and one end of a second connecting rod. The other end of the first connecting rod is hinged to the bed frame, and the other end of the second connecting rod is connected to the bed frame. The bed frame also has a support rod with one end hinged to it. The other end of the support rod is connected to the other end of the second connecting rod. This electric folding bed can automatically fold the bed frame and has high structural stability.

[0004] However, in actual use, when an extension bed board is installed to increase the bed area, the width between the legs of the original folding bed is less than or equal to the width of the bed board. This causes the extended bed to be prone to uneven force distribution due to the mismatch between the width of the supporting legs and the width of the extended bed board. This can lead to the bed tilting and shaking, which not only seriously affects the stability and comfort during use, but also poses a safety hazard.

[0005] To address this, a retractable support frame for folding beds is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a retractable support frame for a folding bed, thereby solving or at least alleviating one or more of the aforementioned problems and other issues existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include: A retractable support frame for a folding bed includes a retractable bed frame installed at the bottom of the folding bed board; The retractable bed frame includes a fixed tube, with extension tubes slidably inserted into both ends of the fixed tube. Support legs can be detachably installed at the bottom of the ends of the two extension tubes away from the fixed tube. Locking devices for fixing the extension tubes to the fixed tube are provided at both ends of the fixed tube.

[0008] In a telescopic support frame for a folding bed according to the present invention, the locking component includes a handle bolt and a first hexagonal rivet nut. The first hexagonal rivet nut is fixedly riveted to the extension tube. An insertion hole is provided on one side of the end of the fixed tube. The screw of the handle bolt passes through the insertion hole and can be threadedly connected to the first hexagonal rivet nut.

[0009] In a telescopic support frame for a folding bed according to the present invention, a gasket is provided on each of the four sides of one end of the extension tube. The gasket slides in contact with the inner wall of the fixed tube. The gaskets on the four sides of the extension tube form a square bushing. The square bushing is used to fill the gap between the extension tube and the fixed tube to improve the stability of the extension tube during use.

[0010] In a telescopic support frame for a folding bed according to the present invention, the extension tube has four holes on each of its four sides, and the gasket has a clip integrally formed thereon, the clip engaging in the holes.

[0011] In a telescopic support frame for a folding bed according to the present invention, a threaded rod is fixedly connected to the top of the support leg, and a second hexagonal rivet nut is fixedly riveted to the bottom of the end of the extension tube away from the fixed tube. The support leg is fixedly connected to the second hexagonal rivet nut through the threaded rod.

[0012] In a telescopic support frame for a folding bed according to the present invention, both ends of the fixing tube are fixedly connected to bed board connecting rods for connecting with the bed board of the folding bed.

[0013] This utility model has at least the following beneficial effects: By sliding the fixed tube and the extension tube together, the support legs can extend from the bottom of the folding bed board, increasing the support area and making the folding bed more stable and reliable when in use. The tightening and loosening operation can be completed, and the locking force of the threaded connection can ensure that the extension tube and the fixed tube are stably fixed and prevent slippage. The gasket at the end of the extension tube slides in contact with the inner wall of the fixed tube, which not only serves as a guide to ensure the stability of the extension direction, but also reduces direct friction between metal parts, reduces wear, and improves the smoothness of sliding. The gasket is secured by snap-fitting the extension tube with a clip, ensuring a reliable connection that is not easily detached; the bed board connecting rod firmly connects the support frame to the bed board, ensuring that the overall structure is stable and free from displacement under load, thus extending its service life. The outriggers are detachably connected to the second hexagonal rivet nut via threaded rods, and can be replaced individually if damaged, reducing maintenance costs. After the outriggers are removed, the extension tube can be inserted into the fixed tube, and will not take up extra space when folded, making it easy to store and transport. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model when connected to the folding bed board; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the fixing tube of this utility model; Figure 4 This is a partial cross-sectional structural diagram of the present invention; Figure 5 for Figure 4 A magnified structural diagram of part A in the diagram; Figure 6 This is a schematic diagram of the structure of the extension tube of this utility model; Figure 7 This is a schematic diagram showing the result when the gasket is installed in this utility model.

[0015] Explanation of icon numbers: 1. Extendable bed frame; 101. Fixing tube; 1011. Insertion hole; 102. Bed board connecting rod; 103. Extension tube; 1031. Clip hole; 1032. Second hexagonal rivet nut; 104. Support leg; 105. Locking part; 1051. Handle bolt; 1052. First hexagonal rivet nut; 106. Washer; 1061. Clip head; 2. Folding bed board. Detailed Implementation

[0016] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] Please refer to Figures 1 to 7 As shown in the embodiments of this utility model, A retractable support frame for a folding bed includes a retractable bed frame 1 installed at the bottom of the bed board 2 of the folding bed; The extendable bed frame 1 includes a fixed tube 101, with extension tubes 103 slidably inserted at both ends of the fixed tube 101. Support legs 104 can be detachably installed at the bottom of the ends of the two extension tubes 103 away from the fixed tube 101. Locking parts 105 for fixing the extension tubes 103 to the fixed tube 101 are provided at both ends of the fixed tube 101.

[0018] By adopting the above technical solution, the extendable bed frame 1 provides support by being installed at the bottom of the folding bed board 2. The fixed tube 101 serves as the basic frame, and the extension tubes 103 at both ends can slide along the fixed tube 101 to achieve length extension and retraction. The support legs 104 can extend from the bottom of the folding bed board 2, increasing the support area and making the folding bed more stable and reliable when in use. The support legs 104 at the ends of the extension tubes 103 play the role of supporting the entire structure and are detachable for easy storage. The locking member 105 is used to fix the extension tubes 103 to the fixed tubes 101 after the extension tubes 103 are extended.

[0019] In this embodiment, the locking component 105 includes a handle bolt 1051 and a first hexagonal rivet nut 1052. The first hexagonal rivet nut 1052 is fixedly riveted to the extension tube 103. An insertion hole 1011 is provided on one side of the end of the fixed tube 101. The screw of the handle bolt 1051 passes through the insertion hole 1011 and can be threadedly connected to the first hexagonal rivet nut 1052.

[0020] By adopting the above technical solution, the locking member 105 achieves its fixing function through the cooperation of the handle bolt 1051 and the first hexagonal rivet nut 1052. When the extension tube 103 is pulled out from the fixing tube 101 and the insertion hole 1011 coincides with the first hexagonal rivet nut 1052, the handle bolt 1051 is passed through the insertion hole 1011 and screwed into the first hexagonal rivet nut 1052, and the relative position of the extension tube 103 and the fixing tube 101 is fixed by the locking force of the threaded connection.

[0021] In this embodiment, gaskets 106 are provided on all four sides of one end of the extension tube 103. The gaskets 106 slide in contact with the inner wall of the fixing tube 101. The gaskets 106 on the four sides of the extension tube 103 form a square bushing. The square bushing is used to fill the gap between the extension tube 103 and the fixing tube 101 to improve the stability of the extension tube 103 during use.

[0022] By adopting the above technical solution, the gaskets 106 on the four sides of the end of the extension tube 103 contact the inner wall of the fixed tube 101. When the extension tube 103 slides relative to the fixed tube 101, the gaskets 106 play a guiding role, ensuring that the extension tube 103 slides smoothly in a fixed direction. At the same time, it reduces the friction and wear caused by the direct contact between the extension tube 103 and the fixed tube 101, and improves the smoothness of sliding.

[0023] Furthermore, in this embodiment, the extension tube 103 has a locking hole 1031 on each of its four sides, and the gasket 106 has a locking head 1061 integrally formed on it, which is locked into the locking hole 1031.

[0024] By adopting the above technical solution, the locking hole 1031 on the extension tube 103 and the locking head 1061 on the gasket 106 are engaged to fix the gasket 106 on the extension tube 103, preventing the gasket 106 from falling off the extension tube 103 during sliding, ensuring that the gasket 106 always plays a guiding and friction-reducing role, and the integrally formed locking head 1061 has a stable structure and reliable connection.

[0025] In this embodiment, a threaded rod is fixedly connected to the top of the support leg 104, and a second hexagonal rivet nut 1032 is fixedly riveted to the bottom of the end of the extension tube 103 away from the fixed tube 101. The support leg 104 is fixedly connected to the second hexagonal rivet nut 1032 through the threaded rod.

[0026] By adopting the above technical solution, the threaded rod at the top of the outrigger 104 and the second hexagonal rivet nut 1032 at the end of the extension tube 103 are connected by threads, realizing the detachable fixing of the outrigger 104 and the extension tube 103. This connection method facilitates the installation, disassembly and replacement of the outrigger 104. When the outrigger 104 is damaged, it can be replaced individually, reducing maintenance costs. At the same time, it is easier to store the whole unit after disassembly.

[0027] In this embodiment, both ends of the fixing tube 101 are fixedly connected to bed board connecting rods 102 for connecting with the folding bed board 2.

[0028] By adopting the above technical solution, the bed board connecting rods 102 at both ends of the fixed tube 101 serve as a connecting medium to fix the entire telescopic support frame to the folding bed board 2, so that the support frame can stably support the bed board 2 and the load above it, ensuring that the support frame and the bed board 2 do not undergo relative displacement during use, thereby improving the stability of the overall structure.

[0029] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A retractable support frame for a folding bed, characterized in that, Includes a retractable bed frame (1) installed at the bottom of the folding bed board (2); The retractable bed frame (1) includes a fixed tube (101), both ends of which are slidably connected to extension tubes (103). The bottom of the two extension tubes (103) away from the fixed tube (101) can be detachably installed with a support leg (104). Both ends of the fixed tube (101) are provided with locking parts (105) for fixing the extension tube (103) to the fixed tube (101).

2. The telescopic support frame for a folding bed according to claim 1, characterized in that: The locking component (105) includes a handle bolt (1051) and a first hexagonal rivet nut (1052). The first hexagonal rivet nut (1052) is fixedly riveted to the extension tube (103). A socket (1011) is provided on one side of the end of the fixed tube (101). The screw of the handle bolt (1051) passes through the socket (1011) and can be threadedly connected to the first hexagonal rivet nut (1052).

3. The telescopic support frame for a folding bed according to claim 2, characterized in that: Gaskets (106) are provided on all four sides of one end of the extension tube (103). The gaskets (106) slide in contact with the inner wall of the fixed tube (101). The gaskets (106) on the four sides of the extension tube (103) form a square bushing. The square bushing is used to fill the gap between the extension tube (103) and the fixed tube (101) to improve the stability of the extension tube (103) during use.

4. The telescopic support frame for a folding bed according to claim 3, characterized in that: The extension tube (103) has four holes (1031) on each of its four sides, and the gasket (106) has a clip (1061) integrally formed on it, and the clip (1061) is engaged in the hole (1031).

5. A telescopic support frame for a folding bed according to claim 4, characterized in that: The top of the support leg (104) is fixedly connected to a threaded rod, and the bottom of the extension tube (103) away from the fixed tube (101) is fixedly riveted with a second hexagonal rivet nut (1032). The support leg (104) is fixedly connected to the second hexagonal rivet nut (1032) through the threaded rod.

6. A telescopic support frame for a folding bed according to any one of claims 1-5, characterized in that: Both ends of the fixed tube (101) are fixedly connected to bed board connecting rods (102) for connecting with the folding bed board (2).

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