A stress dispersion structure for a metal furniture connector

Abstract

The utility model relates to a stress dispersion structure of metal furniture connecting piece, and the inside of the middle end of connecting block is provided with the clamping groove, the top surface of mounting panel is fixedly installed with the clamping block, and the clamping block is slidably inserted in the inside of clamping groove, the both sides of connecting block outside are all fixedly installed with fixed frame, and the both ends of fixed frame side edge are all slidably installed with the limiting insertion rod, the both sides of fixed frame inside are all provided with the push mechanism, and the inside side edge of fixed frame is provided with the drive mechanism vertically, the utility model combines the full contact of the inside of clamping groove and the outer wall of clamping block, disperses stress from single direction to multiple contact surfaces, resists lateral tension through the contact friction of clamping block side wall simultaneously, improves the stability of overall structure in long time connection use, avoids the lateral removal of clamping block from the inside of clamping groove at random, realizes the dispersion of the transverse assembly stress of clamping block and connecting block whole, and improves the stability of metal furniture when splicing and assembling.

Description

Technical Field

[0001] This utility model relates to the technical field of metal furniture connectors, specifically a stress dispersion structure for metal furniture connectors. Background Technology

[0002] Metal furniture connectors are key components in furniture structures. Made of high-strength metal materials (such as stainless steel, aluminum alloy, carbon steel, etc.), they bear the core functions of stable connection, load bearing and stress distribution. Their design covers a variety of types such as bolts, nuts, corner brackets, connecting brackets, and three-in-one eccentric parts. Through precise snap-fit, thread or welding processes, they achieve seamless splicing between boards and pipes.

[0003] In practical applications of metal furniture connectors, metal plates are often assembled using bolts. This installation method requires operators to repeatedly tighten multiple bolts to connect the metal plates at right angles, excessively increasing labor costs. Furthermore, the bolted connection typically transfers stress through a single contact surface, such as the bolt head, the plate, or the weld, leading to localized stress concentration and increasing the risk of fatigue fracture. Consequently, over prolonged use, the connection may separate, affecting the stability of the metal furniture. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a stress dispersion structure for metal furniture connectors. This addresses the current practice of using bolts as connectors to assemble metal plates in actual use. This method requires operators to repeatedly tighten multiple bolts to connect the metal plates at right angles, excessively increasing the operator's labor consumption. Furthermore, during this process, the bolt connection typically transmits stress through a single contact surface, such as the bolt head, the plate, or the weld, leading to localized stress concentration. This can easily cause fatigue fracture, and over time, the connection may separate, affecting the stability of the metal furniture installation and use.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a stress dispersion structure for metal furniture connectors is designed, including a connecting block and an mounting plate. A snap-fit ​​groove is opened in the middle of the connecting block, and a snap-fit ​​block is fixedly installed on the top surface of the mounting plate, and the snap-fit ​​block is slidably inserted into the snap-fit ​​groove. The connecting block is vertically fixed to both sides of the outside with a fixed frame. The fixed frame is slidably installed at both ends of the side of the fixed frame. The fixed frame is provided with a pushing mechanism on both sides of the inside. The pushing mechanism and the limiting rod are connected in a transmission manner. A driving mechanism is vertically arranged on the inner side of the fixed frame, and the driving mechanism and the pushing mechanism are connected in transmission.

[0006] Preferably, the snap-fit ​​block has horizontally opened storage slots on both sides inside, and the limiting rod is slidably installed inside the storage slots. The snap-fit ​​block has limiting slots opened inside both ends of its side.

[0007] Preferably, the pushing mechanism includes a movable plate and a transmission block. Guide frames are fixedly installed at both ends of the side near the connecting block inside each fixed frame. The movable plate is slidably installed inside the guide frame. A transmission rod is horizontally fixedly installed at the middle of the side wall of each movable plate. The side end of the transmission rod is fixedly connected to the side end of the limiting rod.

[0008] Preferably, a transmission block is fixedly installed on the surface of each movable plate away from the transmission rod, and the vertical cross-section of the transmission block is a right-angled triangle.

[0009] Preferably, each of the transmission rods is movably sleeved with a return spring on its outer side, and both ends of the return spring are movably attached to the outer wall of the movable plate and the inner wall of the guide frame.

[0010] Preferably, the driving mechanism includes a push block, a lifting plate is slidably installed on the bottom inner side of the fixed frame, a fixed rod is vertically fixedly installed on the top end of the lifting plate away from the connecting block, and connecting sleeves are fixedly sleeved on both outer ends of the fixed rod. A push block is fixedly installed on the outer wall of each connecting sleeve, and the vertical cross section of the push block is a right triangle.

[0011] Preferably, a hollow threaded tube is fixedly installed through the middle of the bottom end of the fixed frame. A threaded rod is screwed through the hollow threaded tube, and the top end of the threaded rod is rotatably inserted into the bottom end of the lifting plate through a bearing. A fixing groove is opened at the bottom end of the threaded rod, and a fixing block is movably inserted into the fixing groove. A connecting plate is fixedly installed on the bottom surface of the fixing block, and a turning rod is vertically fixedly installed on the bottom surface of the connecting plate.

[0012] Preferably, guide sliders are fixedly installed at both ends of the outer side of the lifting plate, and guide grooves are vertically opened on both sides inside the fixed frame, with the guide sliders slidably installed inside the guide grooves.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by providing a wedge-shaped locking groove inside the connecting block and a matching locking block on the top of the mounting plate, allows the operator to easily connect the two sets of metal furniture components after connecting the connecting block and the mounting plate to the two sets of metal furniture components. The operator simply aligns the locking block with the locking groove and continuously pushes it horizontally to slide the locking block into the locking groove. Combined with the full contact between the inside of the locking groove and the outer wall of the locking block, stress is distributed from a single direction to multiple contact surfaces. Simultaneously, the contact friction of the side wall of the locking block resists lateral tensile forces, improving the stability of the overall structure during long-term connection and use. Furthermore, the locking block, located inside the fixed frame, allows for... The vertically moving push block and the horizontally movable transmission block inside the guide frame, combined with the inclined surface of the push block contacting the inclined surface of the transmission block, allow the transmission block to continuously move upward as the push block moves. This provides the transmission block with a corresponding horizontal driving force, enabling the movable plate to move horizontally sideways synchronously inside the guide frame. Consequently, the limiting rod can move outward from the inner wall of the storage slot and insert into the limiting slot inside the snap-fit ​​block, providing the snap-fit ​​block with a corresponding horizontal insertion limiting force. This further prevents the snap-fit ​​block from arbitrarily moving outward from the snap-fit ​​slot, thereby dispersing the lateral assembly stress of the snap-fit ​​block and the connecting block as a whole, and improving the stability of metal furniture during assembly.

[0014] 2. This utility model features a hollow threaded tube fixedly installed through the bottom of a fixed frame, and a threaded rod screwed inside the hollow threaded tube for transmission connection with the lifting plate. A square fixing groove is provided at the bottom of the threaded rod. When the operator needs to adjust the position of the limiting rod, they only need to insert a fixing block with a matching fixing groove into it, thereby connecting the turning rod and the threaded rod. The operator can then apply a turning force to the threaded rod from the outside of the fixed frame, quickly adjusting the horizontal position of the limiting rod. This improves the efficiency of disassembling and assembling the snap-fit ​​block and the connecting block, while facilitating the disassembly and assembly of the turning rod and preventing the turning rod from protruding excessively and affecting the overall practicality of the structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the connecting block structure of this utility model; Figure 4 This is a front view cross-sectional structural diagram of the fixing frame of this utility model; In the diagram: 1. Connecting block; 11. Snap-fit ​​block; 12. Mounting plate; 13. Snap-fit ​​groove; 2. Fixing frame; 21. Return spring; 22. Storage groove; 23. Limiting rod; 24. Limiting slot; 25. Guide frame; 26. Movable plate; 27. Transmission rod; 28. Transmission block; 3. Lifting plate; 31. Fixing rod; 32. Connecting sleeve; 33. Pushing block; 34. Hollow threaded tube; 35. Threaded rod; 36. Fixing groove; 37. Fixing block; 38. Connecting plate; 39. Tightening rod; 4. Guide groove; 41. Guide slider. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A stress dispersion structure for metal furniture connectors, see [link / reference] Figures 1 to 4 The connecting block 1 has a snap-fit ​​groove 13 inside its middle end. The mounting plate 12 has a snap-fit ​​block 11 fixedly installed on its top surface and the snap-fit ​​block 11 is slidably inserted into the snap-fit ​​groove 13. The connecting block 1 has a fixed frame 2 vertically fixedly installed on both sides of its exterior. The fixed frame 2 has a limit rod 23 slidably installed on both sides of its side. The snap-fit ​​block 11 has a storage groove 22 horizontally opened on both sides of its interior and the limit rod 23 is slidably installed in the storage groove 22. The snap-fit ​​block 11 has a limit slot 24 inside its side and both sides of its interior. The inner diameter of the limit slot 24 is the same as the inner diameter of the storage groove 22.

[0017] For details, see Figures 1 to 4 Both sides of the fixed frame 2 are provided with a pushing mechanism, which includes a movable plate 26 and a transmission block 28. Guide frames 25 are fixedly installed at both ends of the side of each fixed frame 2 closest to the connecting block 1. Movable plates 26 are slidably installed inside the guide frames 25. A transmission rod 27 is horizontally fixedly installed at the middle of the side wall of each movable plate 26. The side end of the transmission rod 27 extends through the side wall of the fixed frame 2 and slides into the interior of the fixed frame 2. The side end of the transmission rod 27 is fixedly connected to the side end of the limiting rod 23. A transmission block 28 is fixedly installed on the surface of the end of each movable plate 26 away from the transmission rod 27. The vertical cross section of the transmission block 28 is a right triangle. The side end of the transmission block 28 is movably set outside the guide frame 25.

[0018] Further, see Figures 1 to 4 Each transmission rod 27 has a return spring 21 movably sleeved on its outer side, and both ends of the return spring 21 are movably attached to the outer wall of the movable plate 26 and the inner wall of the guide frame 25.

[0019] It is worth noting that, see Figures 1 to 4A drive mechanism is vertically arranged on the inner side of the fixed frame 2. The drive mechanism includes a push block 33. A lifting plate 3 is slidably installed on the bottom inner side of the fixed frame 2. A fixed rod 31 is vertically fixedly installed on the top of the lifting plate 3 away from the connecting block 1. A connecting sleeve 32 is fixedly sleeved on both outer ends of the fixed rod 31. A push block 33 is fixedly installed on the outer wall of each connecting sleeve 32. The vertical cross section of the push block 33 is a right triangle. In the initial state, both sets of push blocks 33 are located below the two sets of transmission blocks 28. A hollow threaded tube 34 is fixedly installed through the middle of the bottom end of the fixed frame 2. A threaded rod 35 is screwed through the hollow threaded tube 34. The top end of the threaded rod 35 is rotatably inserted into the bottom end of the lifting plate 3 through a bearing. A fixed groove 36 is opened at the bottom end of the threaded rod 35. A fixed block 37 is movably inserted into the fixed groove 36. A connecting plate 38 is fixedly installed on the bottom surface of the fixed block 37. A turning rod 39 is vertically fixedly installed on the bottom surface of the connecting plate 38.

[0020] It is worth noting that, see Figures 1 to 4 Guide sliders 41 are fixedly installed at both ends of the outer side of the lifting plate 3. Guide grooves 4 are vertically opened on both sides inside the fixed frame 2, and the guide sliders 41 are slidably installed inside the guide grooves 4.

[0021] When assembling metal furniture, the first step is to embed and glue the connecting block 1 into one set of metal furniture components. Then, after connecting the mounting plate 12 to another set of metal furniture components, the operator simply aligns the snap-fit ​​block 11 on the top of the mounting plate 12 with the snap-fit ​​groove 13 inside the middle of the connecting block 1. The operator then continuously applies a translational pushing force to the snap-fit ​​block 11, causing it to slide along the inner wall of the snap-fit ​​groove 13 until it is fully inserted into the snap-fit ​​groove 13. During this process, the inner wall of the snap-fit ​​groove 13 and the outer wall of the snap-fit ​​block 11 are in full contact. The stress that was originally concentrated in one direction is dispersed to multiple contact surfaces. At the same time, the contact friction generated between the side wall of the snap-fit ​​block 11 and the inner wall of the snap-fit ​​groove 13 can effectively resist the lateral tension, avoiding the problem of connection breakage and damage caused by excessive stress on a single contact surface in traditional bolt connections. This lays the foundation for the long-term stable use of the overall structure. After the initial insertion of the snap-fit ​​block 11 into the snap-fit ​​groove 13 is completed, the snap-fit ​​block 11 needs to be limited and fixed by the cooperation of the drive mechanism and the push mechanism to further disperse the assembly stress. During operation, first align the fixing block 37 on the top of the connecting plate 38 with the fixing groove 36 at the bottom of the threaded rod 35, and then insert the fixing block 37 into the fixing groove 36. At this time, the turning rod 39 forms a transmission connection with the threaded rod 35 through the connecting plate 38, the fixing block 37, and the threaded rod 35. After the position of the limiting insertion rod 23 is adjusted, the fixing block 37 can be removed from the fixing groove 36 to separate the turning rod 39 from the threaded rod 35, thus preventing the turning rod 39 from protruding too much and affecting the overall structure. This design improves usability and facilitates quick access to the screwing rod 39 during subsequent reassembly, effectively enhancing the efficiency of disassembling and assembling the snap-fit ​​block 11 and the connecting block 1. Next, the operator rotates the screwing rod 39, causing the threaded rod 35 to rotate synchronously. Since the threaded rod 35 is threaded through and screwed into the hollow threaded tube 34 at the bottom of the fixed frame 2, the threaded rod 35 moves vertically along the inner wall of the hollow threaded tube 34 during rotation, thereby driving the lifting plate 3 to move vertically synchronously through the bearing. When the lifting plate 3 moves, the guide sliders 41 at both ends of its outer side slide along the guide grooves 4 inside the fixed frame 2, providing a stable vertical movement trajectory for the lifting plate 3 and preventing the lifting plate 3 from deviating. As the lifting plate 3 moves vertically upward inside the fixed frame 2, the pushing block 33, connected to the outer wall of the sleeve 32 on the outside of its top fixed rod 31, moves vertically synchronously. Initially, the pushing block 33 is located below the transmission block 28. As the pushing block 33 continues to move upward, the inclined surface of its right triangle comes into contact with the inclined surface of the right triangle of the transmission block 28 and generates a force. Under the push of this force, the transmission block 28 drives the movable plate 26 to move horizontally laterally along the inner wall of the guide frame 25. As the movable plate 26 moves, it pushes its side wall... The transmission rod 27 moves horizontally, which causes the limiting rod 23 at the side end of the transmission rod 27 to slide outward from the storage groove 22 inside the snap-fit ​​block 11, and finally insert into the limiting slot 24 on the side of the snap-fit ​​block 11. The cooperation between the limiting rod 23 and the limiting slot 24 provides the snap-fit ​​block 11 with a horizontal insertion limiting force, effectively preventing the snap-fit ​​block 11 from moving laterally out of the snap-fit ​​groove 13, further dispersing the lateral assembly stress of the snap-fit ​​block 11 and the connecting block 1 as a whole, and significantly improving the stability of the metal furniture splicing assembly; When it is necessary to disassemble or adjust the metal furniture parts, the reverse rotation of the screw rod 39 causes the threaded rod 35 to rotate in the opposite direction and move downward along the inner wall of the hollow threaded tube 34. The lifting plate 3 moves downward synchronously with the threaded rod 35, and the contact force between the pushing block 33 and the transmission block 28 gradually disappears. At this time, the return spring 21 on the outside of the transmission rod 27 is no longer squeezed by the movable plate 26 and begins to recover its deformation. Through the elastic force, the movable plate 26 moves horizontally in the opposite direction along the inside of the guide frame 25. The movable plate 26 drives the transmission block 28 and the transmission rod 27 to move in the opposite direction synchronously. The limiting insert 23 then exits from the limiting slot 24 and returns to the storage slot 22. Subsequently, the operator only needs to apply a reverse pulling force to the mounting plate 12 to pull the snap-fit ​​block 11 out from the snap-fit ​​slot 13, thus completing the disassembly of the two sets of metal furniture parts.

[0022] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0023] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A stress dispersion structure for a metal furniture connector, comprising a connecting block (1) and a mounting plate (12), characterized in that, The connecting block (1) has a snap-fit ​​groove (13) inside its middle end, and the mounting plate (12) has a snap-fit ​​block (11) fixedly installed on its top surface, and the snap-fit ​​block (11) is slidably inserted into the snap-fit ​​groove (13). The connecting block (1) has a fixed frame (2) vertically fixed on both sides of its exterior. The fixed frame (2) has a limit rod (23) slidably installed on both sides of its side. The fixed frame (2) has a pushing mechanism on both sides of its interior, and the pushing mechanism and the limit rod (23) are connected in a transmission manner. The fixed frame (2) has a driving mechanism vertically arranged on its inner side, and the driving mechanism and the pushing mechanism are connected by transmission.

2. The stress dispersion structure of the metal furniture connector as described in claim 1, characterized in that, The snap-fit ​​block (11) has horizontally opened storage slots (22) on both sides inside, and the limiting rod (23) is slidably installed inside the storage slots (22). The snap-fit ​​block (11) has limiting slots (24) opened inside both sides.

3. The stress dispersion structure of the metal furniture connector as described in claim 1, characterized in that, The pushing mechanism includes a movable plate (26) and a transmission block (28). A guide frame (25) is fixedly installed at both ends of the side of each fixed frame (2) near the connecting block (1). The movable plate (26) is slidably installed inside the guide frame (25). A transmission rod (27) is horizontally fixedly installed at the middle of the side wall of each movable plate (26). The side end of the transmission rod (27) is fixedly connected to the side end of the limiting rod (23).

4. The stress dispersion structure of the metal furniture connector as described in claim 3, characterized in that, Each of the movable plates (26) has a transmission block (28) fixedly installed on the end surface away from the transmission rod (27), and the vertical cross section of the transmission block (28) is a right triangle.

5. The stress dispersion structure of the metal furniture connector as described in claim 3, characterized in that, Each of the transmission rods (27) is movably sleeved with a return spring (21) on its outer side, and both ends of the return spring (21) are movably attached to the outer wall of the movable plate (26) and the inner wall of the guide frame (25).

6. The stress dispersion structure of the metal furniture connector as described in claim 1, characterized in that, The driving mechanism includes a push block (33), a lifting plate (3) is slidably installed on the bottom inner side of the fixed frame (2), a fixed rod (31) is vertically fixedly installed on the top of the lifting plate (3) away from the connecting block (1), and a connecting sleeve (32) is fixedly sleeved on both outer ends of the fixed rod (31). A push block (33) is fixedly installed on the outer wall of each connecting sleeve (32), and the vertical cross section of the push block (33) is a right triangle.

7. The stress dispersion structure of the metal furniture connector as described in claim 6, characterized in that, A hollow threaded tube (34) is fixedly installed through the middle of the bottom end of the fixed frame (2). A threaded rod (35) is screwed through the hollow threaded tube (34) by threads. The top end of the threaded rod (35) is rotatably inserted into the bottom end of the lifting plate (3) by bearing. A fixing groove (36) is opened at the bottom end of the threaded rod (35). A fixing block (37) is movably inserted into the fixing groove (36). A connecting plate (38) is fixedly installed on the bottom surface of the fixing block (37). A screwing rod (39) is vertically fixedly installed on the bottom surface of the connecting plate (38).

8. The stress dispersion structure of the metal furniture connector as described in claim 6, characterized in that, The lifting plate (3) has guide sliders (41) fixedly installed at both ends of its outer side. The fixed frame (2) has guide grooves (4) vertically opened on both sides of its inner side, and the guide sliders (41) are slidably installed inside the guide grooves (4).

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