A backrest and bedstead convenient to disassemble

Abstract

The utility model relates to a backrest and bed frame convenient to dismount, the existing backrest volume is bigger, leads to inconvenient transportation, the utility model discloses a body and the support assembly of setting at the bottom of body, the support assembly includes the frame and the supporting leg, the supporting leg passes through the frame and is fixed with the bottom of body, to make the backrest through the supporting leg assembly to reduce the size. The backrest includes the body and the support assembly of supporting the body, through the split body and support assembly to reduce the size of backrest, and then reduce the packing size and volume, convenient to carry and accomodate, also through reducing the number of components to facilitate the dismounting operation, improve structural reliability and use experience, also ensure the integrity of the body, improve effective leaning for the user and improve the aesthetic property. The frame is fixed with the body through the supporting leg, and the frame plays a limiting role on the supporting leg, effectively improves the stress intensity of the support assembly, and then improves the use reliability of the backrest.

Description

Technical Field

[0001] This utility model relates to the field of bedding, specifically to a backrest and bed frame. Background Technology

[0002] Existing bed frames consist of a frame and a backrest located at the front edge of the frame. The height of the backrest is greater than the height of the frame. The backrest provides support for the user and also serves a decorative purpose. With online shopping becoming a new shopping method, purchased bed frames need to be delivered to consumers via express delivery. Consumers then assemble the bed frame themselves to obtain a usable bed frame. Due to the large size of the backrest, incomplete disassembly can lead to excessively large packaging, increasing transportation difficulty and costs. Furthermore, disassembling the backrest into too many parts increases the user's assembly workload, resulting in a cumbersome backrest structure that affects assembly reliability and user experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a backrest and bed frame that are easy to assemble and disassemble. The backrest includes a main body and a support assembly that supports the main body. By separating the main body and the support assembly, the size of the backrest is reduced, making it easier to move and store. Furthermore, by reducing the number of parts, the disassembly and assembly operations are made easier, thus improving the user experience.

[0004] This utility model achieves its purpose through the following method: a backrest that is easy to assemble and disassemble, comprising a main body and a support assembly disposed at the bottom of the main body. The support assembly includes a frame and legs, with the legs passing through the frame and fixedly connected to the bottom of the main body, allowing the backrest to be reduced in size by disassembling the support assembly. By including the main body and the support assembly supporting the main body, the size of the backrest is reduced, thereby reducing the packaging size and volume, facilitating handling and storage. Furthermore, reducing the number of parts facilitates assembly and disassembly, improving structural reliability and user experience, while ensuring the integrity of the main body, providing effective support for the user and enhancing aesthetics. The frame is fixed to the main body via the legs, and the frame limits the movement of the legs, effectively increasing the load-bearing strength of the support assembly, thereby improving the reliability of the backrest.

[0005] Preferably, the frame includes two symmetrically arranged, U-shaped connectors and a connecting rod spanning the bottom of the connectors. The legs vertically pass through the connectors and are fixedly connected to the bottom of the main body. The frame is a split structure, including connectors assembled with the legs and connecting rods that limit the position of the connectors, ensuring that the legs are fixedly connected to the bottom of the main body in a vertical position, improving the strength of the backrest, and preventing bending damage at the connection between the main body and the legs.

[0006] Preferably, the top surface of the support leg is provided with a vertically placed screw at the center. The upper and lower horizontal parts of the connector are respectively provided with an upper through hole for the screw to pass through and a lower through hole for the support leg to pass through. The bottom surface of the body is provided with a rivet nut. The support leg passes through the lower through hole from bottom to top and the screw passes through the upper through hole before being screwed and locked with the rivet nut. The top surface of the support leg and the bottom surface of the body cooperate to clamp the upper horizontal part. The connector is fitted onto the support leg through the upper and lower through holes. The top surface of the upper horizontal part of the connector fits tightly against the bottom surface of the body. By increasing the contact area, the anti-tilting performance of the connector is improved, thereby ensuring that the support leg is fixed to the bottom of the body in a vertical position. The diameter of the upper through hole matches the diameter of the screw, and the diameter of the lower through hole matches the diameter of the support leg, so that the top surface of the support leg can vertically abut against the periphery of the upper through hole, ensuring that the connector is fixed to the bottom of the body.

[0007] Preferably, the top surface of the upper horizontal section has at least two positioning protrusions formed by bulges, and the bottom surface of the body has positioning grooves that correspond one-to-one with the positioning protrusions. The positioning protrusions are vertically engaged in the positioning grooves to limit the horizontal displacement and deflection of the connector. When the top surface of the upper horizontal section is in contact with the bottom surface of the body, the positioning protrusions are inserted into the corresponding positioning grooves to limit the horizontal displacement or deflection of the upper horizontal section, thereby ensuring that the orientation of the connector remains constant.

[0008] Preferably, the rivet nuts are located at both ends of the bottom surface of the body to increase the distance between the legs. The legs are fixed to both ends of the bottom surface of the body by the rivet nuts, resulting in a larger gap between the legs, which effectively improves the reliability of the legs in supporting the body and prevents tipping.

[0009] Preferably, the periphery of the lower perforation is folded to form an annular flange, the inner diameter of which matches the diameter of the support leg, so that the flange provides contact and restraint to the support leg. The flange can fit against the outer wall of the support leg, increasing the contact area to enhance the horizontal restraint of the support leg, thereby ensuring that the support leg always maintains an upright posture when subjected to radial force, ensuring support reliability.

[0010] Preferably, the connecting rod is flat, with its two ends overlapping the end edges of the corresponding lower horizontal sections and secured with fasteners to maintain a constant distance between the connecting parts. The connecting rod spans between the corresponding lower horizontal sections of the connecting parts and is secured with fasteners, facilitating assembly and disassembly while ensuring a constant distance between the bottoms of the connecting parts. This effectively distributes the horizontal force on the support legs and improves support reliability.

[0011] Preferably, a vertical rod is provided between the middle of the connecting rod and the middle of the bottom surface of the body. The top of the vertical rod is threaded and screwed to the bottom surface of the body for locking. A screw hole is opened on the bottom surface of the vertical rod, and a central hole is opened in the connecting rod and the middle section. Fasteners pass through the central hole and are screwed to the screw hole for locking, thereby limiting the displacement of the connecting rod. The vertical rod is set between the middle of the connecting rod and the middle of the bottom surface of the body, which plays a role in shaping the connecting rod and preventing the connecting rod from bending and deforming in the middle due to the pressure of the ends being squeezed against each other. This effectively improves the structural strength of the frame and plays a role in stabilizing the posture of the support legs.

[0012] Preferably, the connector is formed by bending a metal sheet, which facilitates mass production and ensures that the connector has good structural strength.

[0013] Preferably, the side edges of the connector are bent to form reinforcing ribs, and the reinforcing ribs on both sides of the lower horizontal section enclose a groove for the connecting rod end to be inserted, thereby limiting the displacement of the connecting rod end. The reinforcing ribs are used to improve the deformation resistance of the connector, and the grooves can limit the connection rod end, which not only facilitates the insertion and installation of fasteners, but also prevents the connector end from shifting between the lower horizontal section and the lower horizontal section.

[0014] A bed frame includes a backrest and a frame for supporting a mattress. By disassembling the backrest and frame, the packaging volume is reduced, thereby facilitating storage and transportation and improving ease of use.

[0015] The beneficial effects of this utility model are as follows: By separating the backrest into the main body and the support assembly supporting the main body, the size of the backrest is reduced, thereby reducing the packaging size and volume, facilitating handling and storage. Furthermore, reducing the number of parts facilitates assembly and disassembly, improving structural reliability and user experience, while ensuring the integrity of the main body, providing users with effective support and enhancing aesthetics. The frame is fixed to the main body via legs, and the frame limits the movement of the legs, effectively increasing the load-bearing strength of the support assembly, thus improving the reliability of the backrest. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembly structure of the backrest described in Embodiment 1;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the backrest described in Embodiment 1;

[0018] Figure 3 This is a schematic diagram of the connector structure described in Embodiment 1;

[0019] In the diagram: 1. Body, 2. Support assembly, 3. Support leg, 4. Connector, 5. Connecting rod, 6. Screw, 7. Upper horizontal part, 8. Lower horizontal part, 9. Upper through hole, 10. Lower through hole, 11. Positioning groove, 12. Positioning protrusion, 13. Rivet nut, 14. Flanged edge, 15. Vertical rod, 16. Reinforcing rib, 17. Embedded groove. Detailed Implementation

[0020] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1:

[0022] This embodiment provides a backrest.

[0023] like Figure 1 and 2 The backrest shown includes a main body 1 and a support assembly 2 located at the bottom of the main body 1. The support assembly 2 includes a frame and legs 3. The legs 3 pass through the frame and are fixed to the bottom of the main body 1, allowing the backrest to be reduced in size by disassembling the legs 3 assembly. By including the main body 1 and the support assembly 2 that supports the main body 1, the size of the backrest is reduced, thereby reducing the packaging size and volume, facilitating handling and storage. Furthermore, reducing the number of parts facilitates assembly and disassembly, improving structural reliability and user experience, while ensuring the integrity of the main body 1, providing effective support for the user and enhancing aesthetics. The frame is fixed to the main body 1 via the legs 3, and the frame limits the movement of the legs 3, effectively increasing the load-bearing strength of the support assembly 2, thus improving the reliability of the backrest.

[0024] In this embodiment, the backrest is disassembled into a body 1, a connector 4, a support leg 3, a connecting rod 5, and a vertical rod 15. The upper part of the backrest forms a body 1 with an integral structure, which not only ensures that the body 1 has good structural strength to meet the user's need for leaning, but also ensures that the wall of the body 1 facing the frame can form a continuous and complete decorative surface, preventing the decorative surface from being twisted or deformed due to poor assembly accuracy, thus improving the convenience and aesthetics of use.

[0025] In this embodiment, as Figure 3 As shown, the frame includes two symmetrically arranged, U-shaped connectors 4 and a connecting rod 5 spanning the bottom of the connectors 4. The support leg 3 vertically passes through the connectors 4 and is fixedly connected to the bottom of the body 1. Installation is achieved through the following steps:

[0026] First, the two ends of the connecting rod 5 are respectively inserted into the grooves 17 of the lower horizontal part 8 of the corresponding connecting piece 4 and fixed with fasteners;

[0027] Then, the top of the support leg 3 passes through the lower through hole 10 and the upper through hole 9 from bottom to top and protrudes from the top surface of the horizontal part 7 of the corresponding connector 4, and the top of the vertical rod 15 is screwed into the corresponding screw hole.

[0028] Then, the support leg 3 is screwed and locked to the rivet nut 13 by the screw 6 exposed in the upper through hole 9, so that the upper horizontal part 7 of the connector 4 is clamped between the bottom surface of the body 1 and the top surface of the support leg 3, and the positioning protrusion 12 is vertically locked in the positioning groove 11.

[0029] Finally, the bottom end of the vertical rod 15 overlaps the middle of the connecting rod 5, and the fastener passes through the connecting rod 5 from bottom to top and is screwed and locked to the vertical rod 15.

[0030] After installation, the connector 4 is fixed to the body 1 via the support leg 3, and the two ends and the middle part of the connecting rod 5 are fixed to the body 1 via the connector 4 and the vertical rod 15 respectively, so that the bottom edge of the body 1, the connector 4 and the connecting rod 5 form a square frame, which plays a positioning role for the support leg 3, prevents the support leg 3 from tilting under force, and improves the structural strength of the backrest.

[0031] In this embodiment, a vertically placed screw 6 is provided at the center of the top surface of the support leg 3. The upper horizontal part 7 and the lower horizontal part 8 of the connector 4 are respectively provided with an upper through hole 9 for the screw 6 to pass through and a lower through hole 10 for the support leg 3 to pass through. The bottom surface of the body 1 is provided with a rivet nut 13. The support leg 3 passes through the lower through hole 10 from bottom to top and then through the upper through hole 9 via the screw 6, and is screwed and locked with the rivet nut 13. The top surface of the support leg 3 and the bottom surface of the body 1 cooperate to clamp the upper horizontal part 7. The height of the support leg 3 is greater than the height of the connector 4, so that the bottom end of the support leg 3 can be exposed below the connector 4. This facilitates the support leg 3 to be screwed and locked with the body 1 via the screw 6 at the top, and also facilitates the support leg 3 to rest on the ground via its bottom end, providing stable support for the body 1.

[0032] In this embodiment, the top surface of the upper horizontal part 7 is raised to form at least two positioning protrusions 12, and the bottom surface of the body 1 is provided with positioning grooves 11 corresponding to each of the positioning protrusions 12. The positioning protrusions 12 are vertically engaged in the positioning grooves 11 to limit the offset and deflection of the connector 4 in the horizontal plane. The positioning protrusions 12 and the positioning grooves 11 correspond one-to-one. When they are matched and inserted, the rivet nut 13 is coaxially arranged with the upper through hole 9 to ensure that the screw 6 can be screwed and locked with the rivet nut 13 after passing through the upper through hole 9. This plays a guiding role in the installation of the connector 4, improving assembly efficiency and reducing assembly difficulty.

[0033] In this embodiment, the rivet nuts 13 are provided at both ends of the bottom surface of the main body 1 to increase the distance between the legs 3. Two connectors 4 are provided and located at both ends of the bottom surface of the main body 1, effectively increasing the distance between the legs 3 and thus improving the anti-tipping performance of the backrest.

[0034] In this embodiment, the periphery of the lower perforation 10 is folded to form an annular flange 14. The inner diameter of the flange 14 matches the diameter of the support leg 3, so that the flange 14 abuts and limits the support leg 3, effectively resisting the radial force from the support leg 3, and playing a role in resisting radial displacement of the support leg 3, ensuring that the support leg 3 maintains a vertical posture.

[0035] In this embodiment, the connecting rod 5 is flat, and its two ends overlap the corresponding end edges of the lower horizontal part 8 and are fastened and locked with fasteners to keep the distance between the connecting parts 4 constant. The flat shape of the connecting rod 5 facilitates its insertion into the groove 17 and its matching fit with the top surface of the lower horizontal part 8, improving positioning reliability. It also facilitates its fit with the bottom surface of the vertical rod 15, allowing the connecting rod 5 to be fastened to the bottom of the vertical rod 15 by fasteners, thereby increasing the contact area and improving connection reliability.

[0036] In this embodiment, a vertical rod 15 is provided between the middle of the connecting rod 5 and the middle of the bottom surface of the body 1. The top of the vertical rod 15 is threaded and screwed and locked to the bottom surface of the body 1. A screw hole is opened on the bottom surface of the vertical rod 15. A central hole is opened in the middle of the connecting rod 5. Fasteners pass through the central hole and are screwed and locked to the screw hole to limit the offset of the connecting rod 5. The vertical rod 15 is arranged between the connecting parts 4. The vertical rod 15 in the middle and the connecting parts 4 on both sides play a shaping role for the connecting rod 5, ensuring that the connecting rod 5 can effectively resist the horizontal force from the support leg 3, thereby ensuring that the bottom of the support leg 3 will not be horizontally offset, and thus ensuring that the support leg 3 maintains a vertical posture.

[0037] In this embodiment, the connector 4 is formed by bending a metal plate. The side edges of the connector 4 are bent to form reinforcing ribs 16. The reinforcing ribs 16 on both sides of the lower horizontal portion 8 enclose a groove 17 for the end of the connecting rod 5 to be inserted, thus limiting the offset of the end of the connecting rod 5. The connector 4, formed by bending a metal plate, is easy to process and has good structural strength, meeting the usage requirements. The reinforcing ribs 16 are U-shaped and arranged along the side edges of the connector 4, effectively improving the deformation resistance of the connector 4. The reinforcing ribs 16 on both sides of the lower horizontal portion 8 also form the grooves 17 for the end of the connecting rod 5 to be inserted, providing a locking and positioning function for the end of the connecting rod 5, facilitating the insertion and fixing of fasteners.

[0038] Example 2:

[0039] Compared to Embodiment 1, this embodiment provides a bed frame.

[0040] A bed frame includes a backrest and a frame for supporting a mattress. Both the backrest and the frame can be disassembled into multiple smaller components, which facilitates assembly and packaging, effectively reducing the size of the packaging and making it easier to store and transport.

[0041] The other structures and effects of the backrest described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Claims

1. A backrest that is easy to assemble and disassemble, characterized in that, Includes a body (1) and a support assembly (2) disposed at the bottom of the body (1), the support assembly (2) including a frame and legs (3), the legs (3) passing through the frame and fixed to the bottom of the body (1) so that the backrest can be reduced in size by disassembling the legs (3) assembly.

2. The backrest that is easy to assemble and disassemble according to claim 1, characterized in that, The frame includes two symmetrically arranged C-shaped connectors (4) and a connecting rod (5) spanning the bottom of the connectors (4). The legs (3) pass vertically through the connectors (4) and are fixed to the bottom of the body (1).

3. A backrest that is easy to assemble and disassemble according to claim 2, characterized in that, The top surface of the support leg (3) is provided with a vertically placed screw (6). The upper horizontal part (7) and lower horizontal part (8) of the connector (4) are respectively provided with an upper through hole (9) for the screw (6) to pass through and a lower through hole (10) for the support leg (3) to pass through. The bottom surface of the body (1) is provided with a rivet nut (13). The support leg (3) passes through the lower through hole (10) from bottom to top and passes through the upper through hole (9) through the screw (6) and is screwed and locked with the rivet nut (13). The top surface of the support leg (3) and the bottom surface of the body (1) cooperate to clamp the upper horizontal part (7).

4. A backrest that is easy to assemble and disassemble according to claim 3, characterized in that, The top surface of the upper horizontal part (7) is raised to form at least two positioning protrusions (12), and the bottom surface of the body (1) is provided with positioning grooves (11) that correspond one by one to the positioning protrusions (12). The positioning protrusions (12) are vertically locked in the positioning grooves (11) to limit the offset and deflection of the connector (4) in the horizontal plane.

5. A backrest that is easy to assemble and disassemble according to claim 3, characterized in that, The rivet nuts (13) are provided at both ends of the bottom surface of the body (1) to increase the distance between the legs (3).

6. A backrest that is easy to assemble and disassemble according to claim 3, characterized in that, The periphery of the lower perforation (10) is folded to form an annular flange (14), the inner diameter of the flange (14) matches the diameter of the support leg (3), so that the flange (14) abuts and limits the support leg (3).

7. A backrest that is easy to assemble and disassemble according to claim 3, characterized in that, The connecting rod (5) is flat, and the two ends of the connecting rod (5) are respectively attached to the end edge of the corresponding lower horizontal part (8) and fixed and locked by fasteners so that the distance between the connecting parts (4) remains constant.

8. A backrest that is easy to assemble and disassemble according to claim 7, characterized in that, A vertical rod (15) is provided between the middle part of the connecting rod (5) and the middle part of the bottom surface of the body (1). The top part of the vertical rod (15) is threaded and screwed and locked to the bottom surface of the body (1). A screw hole is opened on the bottom surface of the vertical rod (15). A central hole is opened in the middle part of the connecting rod (5). Fasteners pass through the central hole and are screwed and locked to the screw hole to limit the offset of the connecting rod (5).

9. A backrest that is easy to assemble and disassemble according to claim 3, characterized in that, The connector (4) is formed by bending a metal plate; or, the side edge of the connector (4) is bent to form a reinforcing rib (16), and the reinforcing ribs (16) on both sides of the lower horizontal part (8) form a groove (17) for the end of the connecting rod (5) to be inserted, so as to limit the offset of the end of the connecting rod (5).

10. A bed frame, characterized in that, Includes the backrest as described in any one of claims 1-9 and the frame for supporting the mattress.

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