Furniture plate connecting rod structure for furniture

Abstract

The furniture plate connecting rod structure comprises a first connecting rod, one end of the first connecting rod is provided with a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are connected with an inserting device, and the inserting device comprises a pressing plate, an inserting rod, an inserting sleeve, an unlocking sleeve, an unlocking block, an inserting groove, an inserting rod and an unlocking groove. The outer wall of the unlocking block abuts against the inner wall of the unlocking groove, the inserting groove is formed in the outer side of the inserting rod, the inserting rod is connected to one side of the unlocking block, the unlocking groove is formed in the inner side of the unlocking sleeve, one end of the first connecting rod is connected with an adjusting device, and a locking mechanism is arranged on the outer side of the inserting sleeve. The locking mechanism comprises a matching block, adaptive blocks, a control groove, a control panel, a transverse plate, a matching sleeve, a longitudinal plate and a matching spring, the adaptive blocks are installed on the outer side of the plug bush, the control groove is formed in the control panel, the transverse plate is installed on one side of the longitudinal plate, and the matching spring is connected with the matching block; the connecting rod structure is adjustable in angle, convenient to install and stable in structure.

Description

Technical Field

[0001] This utility model relates to the field of furniture board connecting rod technology, and more specifically, it relates to a furniture board connecting rod structure for furniture. Background Technology

[0002] In the modern furniture manufacturing industry, the furniture board connecting rod structure is a key link in furniture assembly. Its flexibility and stability directly affect the practicality and service life of the furniture. However, the furniture board connecting rod structure currently on the market has significant technical defects in terms of practicality and reliability. These problems not only limit the functionality of the furniture, but may also affect the user experience and durability of the product.

[0003] The primary problem is the fixed angle of the connecting rods. Existing technologies generally suffer from a serious lack of flexibility in connection structures: First, traditional double-connecting rod structures use a fixed-angle design, making it impossible to adjust the angle according to the user's individual needs; second, the fixed-angle design greatly limits the space utilization efficiency of furniture, especially in irregular spaces or special usage environments, making it impossible to achieve optimal spatial layout; third, this rigid design makes the furniture lack adaptability during installation and use, making it difficult to meet the needs of different scenarios; in addition, the fixed-angle connection structure also limits the design innovation and functional expansion of furniture; finally, this inflexible connection method not only reduces the practical value of the product but also restricts the competitiveness of the furniture in the market.

[0004] Secondly, the installation process of furniture panels and connecting rods presents significant efficiency challenges: First, traditional connection methods require the use of various specialized tools, such as screwdrivers and wrenches, increasing the complexity of installation; second, the installation process requires repeated operation on multiple fasteners, which not only consumes a lot of time and energy but also easily causes fatigue for installers; third, the complex installation steps increase the risk of operational errors, potentially leading to improper connections or damage to components. When adjustments or disassembly are needed, a complex disassembly process is also required, severely impacting the practicality and ease of maintenance of the furniture.

[0005] Furthermore, while some improved products achieve convenient installation through special designs, they suffer from insufficient structural stability. First, simplified quick-connect structures often employ simple fixing methods, which can easily loosen during the use of furniture under load. Second, vibrations and impacts during daily use can gradually cause the connections to wobble or misalign. Third, during furniture handling, transport vibrations may further exacerbate the loosening problem at the connections, leading to structural changes or displacement. This structural instability not only affects the safety of furniture use but may also cause the overall structure of the furniture to shift and deform, severely shortening the product's lifespan. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, the present invention provides a furniture board connecting rod structure for furniture, so as to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a furniture board connecting rod structure for furniture, comprising a first connecting rod, a second connecting rod at one end of the first connecting rod, and a plug-in device connected to one end of the first and second connecting rods. The plug-in device includes a pressing plate, a plug rod, a plug sleeve, an unlocking sleeve, an unlocking block, a plug-in groove, a plug rod, and an unlocking groove. The pressing plate is fixedly connected to one end of the plug rod, the plug sleeve is fixedly connected to one end of the first and second connecting rods, and the plug sleeve is detachably sleeved on the outside of the plug rod. The unlocking sleeve is rotatably installed on the outside of the plug sleeve. The outer wall of the unlocking block and the inner wall of the unlocking groove are in abutment relationship. The plug-in groove is opened on the outside of the plug rod, and the plug rod is fixedly connected to one side of the unlocking block. The plug rod is inserted into the plug groove, and the unlocking groove is a variable diameter structure opened on the inner side of the unlocking sleeve. One end of the first connecting rod is connected to an adjustment device. A locking mechanism is fixedly provided on the outer side of the plug sleeve. The locking mechanism includes a mating block, an adapter block, a control groove, a control plate, a transverse plate, a mating sleeve, a longitudinal plate, and a mating spring. The mating sleeve is slidably sleeved on the outer side of the plug sleeve. Multiple mating blocks are movably arranged on one side of the unlocking sleeve. Multiple adapter blocks are fixedly installed on the outer side of the plug sleeve. The control groove is opened on the control plate. The control plate is rotatably installed on the outer side of the plug sleeve. Three transverse plates are fixedly installed on one side of the longitudinal plate. Multiple longitudinal plates are fixedly installed on one side of the mating sleeve. The two ends of the mating spring are respectively connected to two adjacent mating blocks.

[0010] The present invention is further configured such that the adjusting device includes a connecting frame, a connecting sleeve, a screw, a connecting plate, and a screw sleeve. The connecting frame is fixedly connected to one end of the first connecting rod, the connecting sleeve is connected to one end of the second connecting rod, the screw slides through the connecting sleeve and the connecting frame, the screw sleeve is movably sleeved on the outside of the screw through a thread, and the connecting plate is fixedly connected to the other end of the screw.

[0011] The present invention is further configured such that control plates are fixedly provided on both sides of the screw sleeve and on one side of the connecting plate.

[0012] The present invention is further configured such that multiple guide grooves are provided on the outer side of the insertion rod, and multiple guide strips are fixedly provided on the inner side of the insertion sleeve. The guide strips are slidably disposed in the guide grooves, thereby realizing installation positioning and ensuring accurate installation.

[0013] The present invention is further configured such that a plurality of springs are connected to one side of the unlocking block, and the other end of the springs is connected to the outside of the socket, thereby ensuring the accurate use of the unlocking block and the plug rod.

[0014] The present invention is further configured such that a push spring is connected to one side of the mating sleeve, a thrust bearing is detachably provided on one side of the control plate, and the other end of the push spring is connected to the thrust bearing, so that the mating between the components is more coordinated.

[0015] The present invention is further configured such that a mating groove is provided in the mating block, and a plurality of adapter rails are fixedly provided on one side of the unlocking sleeve. The mating groove and the adapter rails are adapted to each other, ensuring the precise displacement of the mating block and the mating wheel, and ensuring the stability and reliability of the unlocking and locking operations.

[0016] The present invention is further configured such that the adapter block is a cylindrical structure design, and a mating wheel is rotatably installed on one side of the mating block. The mating wheel is engaged between two corresponding adapter blocks, making the unlocking and locking process smoother.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a furniture board connecting rod structure for furniture, which has the following advantages:

[0019] 1. The adjustment device, through the ingenious cooperation of the connecting frame, connecting sleeve, screw, connecting plate, and screw sleeve, constructs a flexible and adjustable angle adjustment system. The connecting frame is fixedly connected to the first connecting rod, and the connecting sleeve is fixedly connected to the second connecting rod. The sliding connection between the two is achieved through the screw. The control plate allows for easy operation of the screw sleeve and connecting plate. The threaded engagement between the screw sleeve and the screw allows for tightening or loosening of the connecting frame and connecting sleeve, facilitating the adjustment of the connection angle. This innovative adjustment mechanism not only completely solves the limitations of the traditional fixed angle of the connecting rod, but also achieves stepless angle adjustment through simple rotation, enabling the furniture to achieve the best spatial layout effect in different usage environments. The design of this device greatly improves the adaptability and practicality of the furniture, providing users with a more flexible space utilization solution.

[0020] 2. The plug-in device, through the precise cooperation of the pressing plate, plug rod, plug sleeve, unlocking sleeve, unlocking block, plug groove, plug rod, and unlocking groove, forms a highly efficient and convenient quick connection system. The sliding cooperation between the guide groove on the outside of the plug rod and the guide strip on the inside of the plug sleeve ensures accurate positioning during installation. The cooperation between the unlocking block and the spring provides reliable automatic locking and unlocking functions. This innovative plug-in structure allows for quick assembly and disassembly of components simply by rotating the unlocking sleeve, completely eliminating the limitations of traditional connection methods that require multiple tools. The cooperation between the plug rod and the plug groove provides a fixed foundation. This device not only significantly improves installation efficiency but also reduces installation difficulty through simple operation, providing users with a convenient and efficient assembly solution.

[0021] 3. The locking mechanism, through the coordinated work of mating blocks, adapter blocks, control grooves, control plates, horizontal plates, mating sleeves, vertical plates, and mating springs, constructs a multi-layered, stable locking system. The sliding design of the mating sleeve and the elastic support of the push spring provide initial fixation. The control plate, through its cooperation with the thrust bearing, achieves smooth rotation control. The precise cooperation between the mating groove on the mating block and the adapter rail on the unlocking sleeve, along with the locking and fixing between the mating wheel and the adapter block, forms a multi-layered locking mechanism. This innovative locking structure not only ensures automatic locking of the structure through the elastic action of the mating spring but also prevents accidental loosening through the cooperation of the horizontal plate and control grooves, solving the problem of insufficient stability in traditional quick-connect structures. Even under conditions of long-term use and transportation of furniture, this mechanism can maintain the stability of the connection structure, ensuring the safety and durability of the furniture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a furniture board connecting rod structure for furniture according to this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure from a second perspective in this utility model;

[0024] Figure 3 This is a schematic diagram of the dispersed structure of the insertion device and locking mechanism in this utility model;

[0025] Figure 4 This is a cross-sectional view of the insertion device and locking mechanism of the present invention, excluding the insertion rod portion.

[0026] Figure 5 This is a cross-sectional view of the insertion device and locking mechanism in this utility model.

[0027] In the diagram: 1. First connecting rod; 2. Second connecting rod; 3. Pressing plate; 4. Insert rod; 5. Insert sleeve; 6. Unlocking sleeve; 7. Unlocking block; 8. Insertion groove; 9. Insertion rod; 10. Unlocking groove; 11. Mating block; 12. Adaptor block; 13. Control groove; 14. Control board; 15. Horizontal plate; 16. Mating sleeve; 17. Longitudinal plate; 18. Mating spring; 19. Connecting frame; 20. Connecting sleeve; 21. Screw; 22. Connecting plate; 23. Screw sleeve; 24. Control board; 25. Guide groove; 26. Guide bar; 27. Spring; 28. Push spring; 29. ​​Thrust bearing; 30. Mating groove; 31. Adaptor rail; 32. Mating wheel. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A furniture board connecting rod structure for furniture includes a first connecting rod 1, a second connecting rod 2 at one end of the first connecting rod 1, and a plug-in device connected to one end of the first connecting rod 1 and the second connecting rod 2. The plug-in device includes a pressing plate 3, a plug rod 4, a plug sleeve 5, an unlocking sleeve 6, an unlocking block 7, a plug-in groove 8, a plug rod 9, and an unlocking slot 10. The pressing plate 3 is fixedly connected to one end of the plug rod 4, the plug sleeve 5 is fixedly connected to one end of the first connecting rod 1 and the second connecting rod 2, and the plug sleeve 5 is detachably sleeved on the outside of the plug rod 4. The unlocking sleeve 6 is rotatably installed on the outside of the plug sleeve 5. The outer wall of the unlocking block 7 is in abutting relationship with the inner wall of the unlocking slot 10. The plug-in groove 8 is opened on the outside of the plug rod 4, the plug rod 9 is fixedly connected to one side of the unlocking block 7, and the plug rod 9 is inserted into the plug-in groove 8. 10 is a variable-diameter structure located inside the unlocking sleeve 6. One end of the first connecting rod 1 is connected to an adjustment device. A locking mechanism is fixedly provided on the outside of the insert sleeve 5. The locking mechanism includes a mating block 11, an adapter block 12, a control groove 13, a control plate 14, a transverse plate 15, a mating sleeve 16, a longitudinal plate 17, and a mating spring 18. The mating sleeve 16 is slidably fitted on the outside of the insert sleeve 5. Multiple mating blocks 11 are movably arranged on one side of the unlocking sleeve 6. Multiple adapter blocks 12 are fixedly installed on the outside of the insert sleeve 5. The control groove 13 is opened on the control plate 14. The control plate 14 is rotatably installed on the outside of the insert sleeve 5. Three transverse plates 15 are fixedly installed on one side of the longitudinal plate 17. Multiple longitudinal plates 17 are fixedly installed on one side of the mating sleeve 16. The two ends of the mating spring 18 are respectively connected to two adjacent mating blocks 11.

[0032] The adjustment device includes a connecting frame 19, a connecting sleeve 20, a screw 21, a connecting plate 22, and a screw sleeve 23. The connecting frame 19 is fixedly connected to one end of the first connecting rod 1, the connecting sleeve 20 is connected to one end of the second connecting rod 2, the screw 21 slides through the connecting sleeve 20 and the connecting frame 19, the screw sleeve 23 is movably sleeved on the outside of the screw 21 by threads, and the connecting plate 22 is fixedly connected to the other end of the screw 21.

[0033] Control plates 24 are fixedly installed on both sides of the threaded sleeve 23 and on one side of the connecting plate 22.

[0034] In this embodiment, when it is necessary to adjust the connection angle of the first connecting rod 1 and the second connecting rod 2, firstly, grasp the control plates 24 provided on both sides of the threaded sleeve 23, then fix the threaded sleeve 23 so that it will not rotate. Then, pinch the control plate 24 fixed on one side of the connecting plate 22, and then rotate the control plate 24 on one side of the connecting plate 22 in the forward direction. This causes the control plate 24 to drive the screw 21 to rotate in the forward direction through the connecting plate 22, so that the screw 21 gradually loosens from the threaded sleeve 23. Then, the connecting plate 22 and the threaded sleeve 23 no longer cooperate to press the connecting frame 19 and the connecting sleeve 20 together. Then, rotate the first connecting rod 1 or the second connecting rod 2, so that... The first connecting rod 1 drives the connecting frame 19 to rotate around the screw 21, or causes the second connecting rod 2 to drive the connecting sleeve 20 connected to one end to rotate around the screw 21. After the connection angle of the first connecting rod 1 and the second connecting rod 2 is properly adjusted, the corresponding control plate 24 is used to prevent the screw sleeve 23 from rotating. Then, the control plate 24 is rotated in the opposite direction, causing the connecting plate 22 to drive the screw 21 to rotate in the opposite direction, so that the screw 21 is gradually tightened in the screw sleeve 23. Then, the connecting plate 22 and the screw sleeve 23 re-cooperate to press the connecting sleeve 20 and the connecting frame 19 together, thereby realizing the adjustment of the connection angle of the first connecting rod 1 and the second connecting rod.

[0035] Please see Figures 1-5 As a further implementation of the overall device: multiple guide grooves 25 are provided on the outer side of the insertion rod 4, and multiple guide strips 26 are fixedly provided on the inner side of the insertion sleeve 5. The guide strips 26 are slidably disposed in the guide grooves 25.

[0036] Multiple springs 27 are connected to one side of the unlocking block 7, and the other end of the springs 27 is connected to the outside of the socket 5.

[0037] A push spring 28 is connected to one side of the sleeve 16, and a thrust bearing 29 is detachably provided on one side of the control plate 14. The other end of the push spring 28 is connected to the thrust bearing 29.

[0038] The mating block 11 has a mating groove 30, and the unlocking sleeve 6 has multiple adapter rails 31 fixed on one side, with the mating groove 30 and the adapter rails 31 being adapted to each other.

[0039] The adapter block 12 is designed as a cylindrical structure. A mating wheel 32 is rotatably installed on one side of the mating block 11. The mating wheel 32 is engaged between the corresponding two adapter blocks 12.

[0040] More specifically, when it is necessary to install a furniture board at one end of the first connecting rod 1 or the second connecting rod 2, the corresponding insert rod 4 must first be removed. First, rotate the control plate 14 so that the control plate 14 drives the control groove 13 to rotate to the position corresponding to the transverse plate 15. The control plate 14 will also drive the thrust bearing 29 installed on one side to rotate, and then push the mating sleeve 16. The mating sleeve 16 will cooperate with the thrust bearing 29 to compress the push spring 28. The mating sleeve 16 will also drive the longitudinal plate 17 and the transverse plate 15 to gradually slide into the control groove 13. When the push spring 28 is compressed to its limit, the transverse plate 15 closest to the mating sleeve 16 will just completely pass through the control groove 13 and move to the other side of the control plate 14. Then, rotate the control plate 14 again so that... The control plate 14 drives the control groove 13 to rotate to a position that does not correspond to the transverse plate 15. At this time, the longitudinal plate 17 and the transverse plate 15 cooperate to limit the mating sleeve 16 to one side of the control plate 14, so that the mating sleeve 16 no longer limits the outer side of the mating wheel 32. Then, the unlocking sleeve 6 is rotated forward. The unlocking sleeve 6 drives the multiple adapter rails 31 installed on one side to rotate forward. Then, the adapter rails 31 drive the multiple mating blocks 11 to rotate forward through the mating groove 30. Then, the mating blocks 11 drive the mating wheel 32 installed on one side to move out from between the two adapter blocks 12. The mating wheel 32 drives the mating blocks 11 to slide outward along the adapter rails 31 and the mating groove 30. Then, the mating blocks 11 will drive the mating spring 18 to stretch outward. At the same time, the unlocking sleeve 6 will drive the mating spring 18 to rotate outward. The unlocking slot 10 of the inner variable diameter structure rotates in the forward direction, and then multiple springs 27 slowly reset synchronously. The springs 27 then push the unlocking block 7 to move outward, ensuring that the outer wall of the unlocking block 7 remains in close contact with the inner wall of the unlocking slot 10. The unlocking block 7 also causes the connecting rod 9 on one side to gradually pull out of the connecting slot 8. Then, the connecting rod 4 is pulled to one side, causing the guide groove 25 and the connecting slot 8 to move, thus removing the connecting rod 4 at this location. The same steps can be repeated to remove the connecting rod 4 at another location. The furniture board is then removed and placed on one side of the first connecting rod 1 or the second connecting rod 2, ensuring that the pre-drilled mounting hole on the furniture board is concentric with the insert 5. The connecting rod 4 then passes through the mounting hole from the other side of the furniture board and enters... The guide plate 3 presses the furniture board against the insert sleeve 5, aligning the guide groove 25 with the guide strip 26. When the pressing plate 3 presses the furniture board against one side of the insert sleeve 5, the unlocking sleeve 6 rotates in the opposite direction. This causes the unlocking sleeve 6 to rotate the mating block 11 in the opposite direction through the cooperation of the adapter rail 31 and the guide groove 25. The mating block 11 then drives the mating wheel 32 to rotate in the opposite direction. Simultaneously, the unlocking sleeve 6 causes the unlocking groove 10 on its inner side to rotate in the opposite direction. The inner wall of the unlocking groove 10 gradually presses the unlocking block 7 inward, causing the unlocking block 7 to compress the multiple springs 27 on one side. This causes the unlocking block 7 to gradually insert the connecting rod 9 into the connecting groove 8. When the connecting rod 9 is fully inserted into the connecting groove 8, the unlocking sleeve 6 can no longer rotate.The mating block 11 drives the mating wheel 32 to rotate between the two original mating blocks 12. Then, the mating spring 18 resets and pulls the mating block 11 to slide inward along the mating rail 31 and the mating groove 30. Then, the mating block 11 drives the mating wheel 32, which is rotatably mounted on one side, to re-engage between the two original mating blocks 12. Then, the control plate 14 is rotated again, causing the control plate 14 to drive the control groove 13 and the thrust bearing 29 mounted on one side to rotate again. When the control groove 13 rotates again to the position corresponding to the transverse plate 15, the thrust spring 28 pushes the mating sleeve 16 to slide and reset. The mating sleeve 16 passes through the longitudinal plate 1. 7. The three transverse plates 15 slide and reset. After the push spring 28 is fully reset, the other two transverse plates 15 move to the sides of the control plate 14 respectively. Then, the control plate 14 continues to rotate, causing the control groove 13 to rotate to a position not corresponding to the transverse plates 15. Then, the longitudinal plate 17 and the two transverse plates 15 cooperate to limit and support the mating sleeve 16. The inner wall of the mating sleeve 16 then limits the outer side of the mating wheel 32, preventing the mating wheel 32 and the mating block 11 from moving outward, thus preventing the unlocking sleeve 6 from rotating. This ensures the stability of the installation structure and the overall connection stability of the furniture.

[0041] In summary, when using or operating the overall equipment: First, when adjusting the connection angle between the first connecting rod 1 and the second connecting rod 2, hold the control plates 24 on both sides of the threaded sleeve 23 to secure the threaded sleeve 23 so it does not rotate. Then, pinch the control plate 24 fixed on one side of the connecting plate 22 and rotate it clockwise. This causes the control plate 24 to drive the screw 21 to rotate clockwise through the connecting plate 22, gradually loosening the screw 21 from the threaded sleeve 23. This causes the connecting plate 22 and the threaded sleeve 23 to no longer engage, thus pressing the connecting frame 19 and the connecting sleeve 20 together. Then, rotate either the first connecting rod 1 or the second connecting rod. 2. This causes the first connecting rod 1 to drive the connecting frame 19 to rotate around the screw 21, or causes the second connecting rod 2 to drive the connecting sleeve 20 connected to one end to rotate around the screw 21. After the connection angle of the first connecting rod 1 and the second connecting rod 2 is properly adjusted, the corresponding control plate 24 is used to prevent the screw sleeve 23 from rotating. Then, the control plate 24 is rotated in the opposite direction, causing the connecting plate 22 to drive the screw 21 to rotate in the opposite direction, so that the screw 21 is gradually tightened in the screw sleeve 23. Then, the connecting plate 22 and the screw sleeve 23 re-cooperate to press the connecting sleeve 20 and the connecting frame 19 together, thereby realizing the adjustment of the connection angle of the first connecting rod 1 and the second connecting rod.

[0042] When it is necessary to install a furniture board at one end of the first connecting rod 1 or the second connecting rod 2, the corresponding insert rod 4 must first be removed. First, rotate the control plate 14 so that the control plate 14 drives the control groove 13 to rotate to the position corresponding to the transverse plate 15. The control plate 14 will also drive the thrust bearing 29 installed on one side to rotate, and then push the mating sleeve 16. The mating sleeve 16 will cooperate with the thrust bearing 29 to compress the push spring 28. The mating sleeve 16 will also drive the longitudinal plate 17 and the transverse plate 15 to gradually slide into the control groove 13. When the push spring 28 is compressed to its limit, the transverse plate 15 closest to the mating sleeve 16 will just completely pass through the control groove 13 and move to the other side of the control plate 14. Then, rotate the control plate 14 again so that the control plate 14 drives the control groove 13 to rotate to a position that does not correspond to the transverse plate 15. At this time, the longitudinal plate 17 and the transverse plate 15 cooperate to limit the mating sleeve 16 to one side of the control plate 14, so that the mating sleeve 16 no longer limits the outer side of the mating wheel 32. Then, the unlocking sleeve 6 is rotated forward. The unlocking sleeve 6 drives the multiple adapter rails 31 installed on one side to rotate forward. Then, the adapter rails 31 drive the multiple mating blocks 11 to rotate forward through the mating groove 30. Then, the mating blocks 11 drive the mating wheel 32 installed on one side to move out from between the two adapter blocks 12. The mating wheel 32 drives the mating blocks 11 to slide outward along the adapter rails 31 and the mating groove 30. Then, the mating blocks 11 will drive the mating spring 18 to stretch outward. At the same time, the unlocking sleeve 6 will drive the inner side The unlocking slot 10 of the variable diameter structure rotates forward, and then multiple springs 27 slowly reset synchronously. The springs 27 then push the unlocking block 7 outward, ensuring the outer wall of the unlocking block 7 remains tightly against the inner wall of the unlocking slot 10. The unlocking block 7 also causes the connecting rod 9 on one side to gradually pull out of the connecting slot 8. Then, the connecting rod 4 is pulled to one side, causing the guide groove 25 and the connecting slot 8 to move, thus removing the connecting rod 4 at this location. The same steps can be repeated to remove the connecting rod 4 at another location. The furniture board is then removed and placed on one side of the first connecting rod 1 or the second connecting rod 2, ensuring the pre-drilled mounting hole on the furniture board is concentric with the insert 5. The connecting rod 4 then passes through the mounting hole from the other side of the furniture board and enters... Inside the insert sleeve 5, the guide groove 25 is aligned with the guide strip 26, allowing the guide strip 26 to enter the guide groove 25. When the pressing plate 3 presses the furniture board against one side of the insert sleeve 5, the unlocking sleeve 6 rotates in the opposite direction. This causes the unlocking sleeve 6 to drive the mating block 11 to rotate in the opposite direction through the cooperation of the adapter rail 31 and the guide groove 25. The mating block 11 then drives the mating wheel 32 to rotate in the opposite direction. Simultaneously, the unlocking sleeve 6 drives the unlocking groove 10 on its inner side to rotate in the opposite direction. Then, the inner wall of the unlocking groove 10 gradually presses the unlocking block 7 inward, causing the unlocking block 7 to compress the multiple springs 27 on one side. This causes the unlocking block 7 to drive the plug rod 9 to gradually insert into the plug groove 8. When the plug rod 9 is fully inserted into the plug groove 8, the unlocking sleeve 6 can no longer rotate.The mating block 11 drives the mating wheel 32 to rotate between the two original mating blocks 12. Then, the mating spring 18 resets and pulls the mating block 11 to slide inward along the mating rail 31 and the mating groove 30. Then, the mating block 11 drives the mating wheel 32, which is rotatably mounted on one side, to re-engage between the two original mating blocks 12. Then, the control plate 14 is rotated again, causing the control plate 14 to drive the control groove 13 and the thrust bearing 29 mounted on one side to rotate again. When the control groove 13 rotates again to the position corresponding to the transverse plate 15, the thrust spring 28 pushes the mating sleeve 16 to slide and reset. The mating sleeve 16 passes through the longitudinal plate 1. 7. The three transverse plates 15 slide and reset. After the push spring 28 is fully reset, the other two transverse plates 15 move to the sides of the control plate 14 respectively. Then, the control plate 14 continues to rotate, causing the control groove 13 to rotate to a position not corresponding to the transverse plates 15. Then, the longitudinal plate 17 and the two transverse plates 15 cooperate to limit and support the mating sleeve 16. The inner wall of the mating sleeve 16 then limits the outer side of the mating wheel 32, preventing the mating wheel 32 and the mating block 11 from moving outward, thus preventing the unlocking sleeve 6 from rotating. This ensures the stability of the installation structure and the overall connection stability of the furniture.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A furniture plate connecting rod structure for furniture, comprising a first connecting rod (1), characterized by: The first connecting rod (1) is provided with a second connecting rod (2) at one end, and the first connecting rod (1) and the second connecting rod (2) are connected with a plug-in device at one end, the plug-in device comprises a pressing plate (3), a plug rod (4), a plug sleeve (5), an unlocking sleeve (6), an unlocking block (7), a plug-in slot (8), a plug-in rod (9) and an unlocking slot (10), the pressing plate (3) is fixedly connected at one end of the plug rod (4), the outer wall of the unlocking block (7) is in abutting relationship with the inner wall of the unlocking slot (10), the plug-in slot (8) is formed on the outer side of the plug rod (4), the plug-in rod (9) is connected on one side of the unlocking block (7), the unlocking slot (10) is formed in a variable-diameter structure on the inner side of the unlocking sleeve (6), the first connecting rod (1) is connected with an adjusting device at one end, and the outer side of the plug sleeve (5) is provided with a locking mechanism, the locking mechanism comprises a matching block (11), an adaptive block (12), a control slot (13), a control plate (14), a transverse plate (15), a matching sleeve (16), a longitudinal plate (17) and a matching spring (18), a plurality of adaptive blocks (12) are installed on the outer side of the plug sleeve (5), the control slot (13) is formed on the control plate (14), three transverse plates (15) are installed on one side of the longitudinal plate (17), a plurality of longitudinal plates (17) are installed on one side of the matching sleeve (16), and the matching spring (18) is connected with the adjacent two matching blocks (11).

2. A furniture board connecting rod structure for furniture according to claim 1, characterized in that: The adjusting device comprises a connecting frame (19), a connecting sleeve (20), a screw rod (21), a connecting plate (22) and a screw sleeve (23), the connecting frame (19) is fixedly connected at one end of the first connecting rod (1), the connecting sleeve (20) is connected at one end of the second connecting rod (2), the screw rod (21) slides through the connecting sleeve (20) and the connecting frame (19), the screw sleeve (23) is movably sleeved on the outer side of the screw rod (21) through threads, and the connecting plate (22) is fixedly connected at the other end of the screw rod (21).

3. A furniture board connecting rod structure for furniture according to claim 2, characterized in that: The screw sleeve (23) is fixedly provided with a control plate (24) on both sides and one side of the connecting plate (22).

4. A furniture plate connecting rod structure for furniture according to any one of claims 1 to 3, characterized in that: A plurality of guide grooves (25) are formed on the outer side of the plug rod (4), a plurality of guide strips (26) are fixedly arranged on the inner side of the plug sleeve (5), and the guide strips (26) are slidably arranged in the guide grooves (25).

5. A furniture board connecting rod structure for furniture according to claim 4, characterized in that: A plurality of springs (27) are connected on one side of the unlocking block (7), and the other ends of the springs (27) are connected with the outer side of the plug sleeve (5).

6. A furniture board connecting rod structure for furniture according to claim 1, characterized in that: A push spring (28) is connected on one side of the matching sleeve (16), a thrust bearing (29) is detachably arranged on one side of the control plate (14), and the other end of the push spring (28) is connected with the thrust bearing (29).

7. A furniture board connecting rod structure for furniture according to claim 6, characterized in that: A matching groove (30) is formed in the matching block (11), a plurality of adaptive rails (31) are fixedly arranged on one side of the unlocking sleeve (6), and the matching groove (30) is matched with the adaptive rails (31).

8. A furniture board connecting rod structure for furniture according to claim 7, characterized in that: The adaptive block (12) is designed in a cylindrical structure, a matching wheel (32) is rotatably arranged on one side of the matching block (11), and the matching wheel (32) is clamped between the corresponding two adaptive blocks (12).

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