Anti-deformation supporting structure for fixedly-installed furniture
The support structure, which employs a multi-level sliding nesting structure and a ratchet-pawl locking mechanism, solves the problems of easy deformation and poor adaptability of fixed furniture support structures. It improves multi-size adaptability and anti-deformation capabilities, reduces production costs, and extends service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGGUAN HOLDING GROUP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-22
AI Technical Summary
The support structure of existing fixed furniture is prone to deformation under long-term load or changes in environmental humidity, and it is difficult to adapt to furniture of different sizes, resulting in high production costs and low installation efficiency.
The mounting rod, which adopts a multi-level sliding nested structure, is linked with a two-way screw and a helical tube. Combined with a ratchet-pawl mechanism and a dual locking mechanism of positioning block and positioning frame, it enables bidirectional adjustment of the height and width of the support structure. The load transmission path is distributed through a cross-connecting frame, and stainless steel material is used to improve the deformation resistance.
It achieves multi-size adaptability of the support structure, reduces the production cost of non-standard parts, improves bending strength and service life, and prevents loosening problems caused by vibration.
Smart Images
Figure CN224265539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixed furniture technology, specifically to a fixed furniture anti-deformation support structure. Background Technology
[0002] Fixed furniture refers to furniture that is fixed to walls, floors, or ceilings through mortise and tenon joints, adhesives, or nails. Common types include built-in wardrobes, wall panels, wooden doors, and cabinets. Its characteristic is that it is not removable and forms an integrated design with the architectural space.
[0003] Existing fixed furniture, such as custom wardrobes and integrated cabinets, is usually made of panel materials such as particleboard and MDF, with its internal support structure mostly consisting of simple horizontal or vertical partitions. Under long-term load-bearing or changes in environmental humidity, this type of structure is prone to bending and deformation of the panels and cracking of the joints, affecting its service life and aesthetics. Furthermore, because this type of support mechanism has fixed dimensions, it is difficult to adapt to different sizes of furniture, resulting in high production costs and low installation efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a fixed furniture anti-deformation support structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixed furniture anti-deformation support structure, comprising a fixed block, on which two sets of vertically distributed mounting rods are provided, and within each of the two sets of mounting rods are two sets of symmetrically distributed first adjusting rods, and within each of the two sets of first adjusting rods are two sets of symmetrically distributed second adjusting rods. Two sets of symmetrically distributed support rods are provided on both sides of the fixed block, and the ends of the two sets of second adjusting rods furthest from the mounting rods are respectively fixedly connected to the corresponding two sets of support rods. Within each of the two sets of support rods are two sets of symmetrically distributed first sliding rods, and within each of the two sets of first sliding rods are two sets of symmetrically distributed second sliding rods. Between each of the two sets of second sliding rods and the second adjusting rods are two sets of cross-distributed first connecting frames and two sets of cross-distributed second connecting frames. A bidirectional screw is rotatably installed within each of the two sets of mounting rods, and a first bevel gear is sleeved on the bidirectional screw. A second bevel gear, meshing with the first bevel gear, is rotatably installed within the fixed block.
[0006] As a further preferred embodiment of this technical solution, the two sets of first connecting frames are rotatably connected to the two sets of second connecting frames via rotating shafts. The outer ends of the two sets of first connecting frames are rotatably connected via rotating shafts, and the inner ends of the two sets of first connecting frames are rotatably mounted with sliders. The sliders are slidably connected to the corresponding second adjusting rods or second sliding rods. The inner ends of the two sets of second connecting frames are rotatably connected via rotating shafts, and the outer ends of the two sets of second connecting frames are rotatably connected to the corresponding second sliding rods or second adjusting rods via rotating shafts.
[0007] As a further preferred embodiment of this technical solution, the two ends of the bidirectional screw pass through corresponding first adjusting rods and are threadedly connected to the first adjusting rods. A spiral tube is rotatably installed inside each of the two sets of first adjusting rods. The two sets of spiral tubes pass through corresponding second adjusting rods and are threadedly connected to the second adjusting rods. The bidirectional screw has two sets of symmetrically distributed keyways. Each of the two sets of spiral tubes has two sets of symmetrically distributed key blocks. The key blocks correspond to the keyways. The spiral tubes are slidably sleeved with the bidirectional screw through the key blocks and keyways.
[0008] As a further preferred embodiment of this technical solution, the second bevel gear is rotatably connected to the fixed block via a mounting shaft. Two sets of symmetrically distributed ratchet wheels are sleeved on the mounting shaft. Two sets of pawls that mesh with the corresponding ratchet wheels are rotatably installed inside the fixed block. Both sets of pawls are rotatably connected to the fixed block via rotating rods. A first torsion spring is sleeved on both sets of rotating rods. The two ends of the first torsion spring are fixedly connected to the pawls and the fixed block, respectively. Gears are sleeved on both sets of rotating rods.
[0009] As a further preferred embodiment of this technical solution, two sets of racks that mesh with corresponding gears are slidably installed inside the fixed block, a movable frame is slidably installed inside the fixed block, the movable frame is fixedly connected to the two sets of racks respectively, and a positioning block is fixedly installed on the movable frame.
[0010] As a further preferred embodiment of this technical solution, a positioning rod corresponding to the positioning block is fixedly installed inside the fixing block, and two sets of symmetrical positioning frames are sleeved on the positioning rod, with the two sets of positioning frames respectively engaging with the positioning block.
[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed second torsion springs are sleeved on the positioning rod, and the two ends of the two sets of second torsion springs are respectively fixedly connected to the corresponding positioning frame and the positioning rod.
[0012] This utility model provides a fixed furniture anti-deformation support structure, which has the following beneficial effects:
[0013] (1) This utility model uses two sets of vertically distributed mounting rods and bidirectional screw and tube linkage mechanism, combined with the multi-level sliding nesting structure of the first adjustment rod and the second adjustment rod, to realize bidirectional independent adjustment of the height and width of the support structure, which can cover more than 90% of the size requirements of customized furniture, significantly reducing the production cost of non-standard parts. The first connecting frame and the second connecting frame, which are distributed in a cross manner, form a truss-like structure between the second sliding rod and the second adjustment rod. When adjusting the size, the load transmission path is automatically reconstructed, and the concentrated stress is dispersed to the overall frame. The bending strength is effectively improved compared with the traditional fixed support. At the same time, each component in this device is made of metal stainless steel, which makes the support structure different from the transmission support structure. It is not easy to deform and has a long service life.
[0014] (2) This utility model ensures the thread engagement accuracy during the adjustment of the support structure by using the keyway and key block design of the bidirectional screw and the screw tube, avoiding local stress concentration caused by misalignment, reducing the deformation of the support structure under long-term load, and forming a double locking mechanism between the ratchet-pawl mechanism and the positioning block and positioning frame. After the size of the support structure is adjusted, it will automatically lock, resisting certain torque impacts during daily use without displacement, and preventing problems such as loosening of the support structure due to vibration during furniture use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the mounting rod of this utility model;
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;
[0018] Figure 4 This is a schematic diagram of the structure of the first connecting frame and the second connecting frame of this utility model;
[0019] In the diagram: 1. Fixed block; 2. Mounting rod; 3. First adjusting rod; 4. Second adjusting rod; 5. Support rod; 6. Second connecting frame; 7. Slider; 8. Bidirectional screw; 9. Keyway; 10. Screw tube; 11. Key block; 12. First bevel gear; 13. Second bevel gear; 14. Mounting shaft; 15. Ratchet; 16. Pawl; 17. Rotating rod; 18. First torsion spring; 19. Gear; 20. Rack; 21. Moving frame; 22. Positioning block; 23. Positioning rod; 24. Positioning frame; 25. Second torsion spring; 26. First slide rod; 27. Second slide rod; 28. First connecting frame. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0021] This utility model provides a technical solution: such as Figures 1-4As shown in this embodiment, a fixed furniture anti-deformation support structure includes a fixing block 1. The fixing block 1 has two sets of vertically distributed mounting rods 2. Two sets of symmetrically distributed first adjusting rods 3 are slidably installed within each of the two sets of mounting rods 2. Two sets of second adjusting rods 4 are slidably installed within each of the two sets of first adjusting rods 3. Two sets of symmetrically distributed support rods 5 are provided on both sides of the fixing block 1. The ends of the two sets of second adjusting rods 4 furthest from the mounting rods 2 are respectively fixedly connected to the corresponding two sets of support rods 5. Two sets of symmetrically distributed first sliding rods 26 are slidably installed within each of the two sets of support rods 5. Two sets of second sliding rods 27 are slidably installed within each of the two sets of first sliding rods 26. Two sets of cross-distributed first connecting brackets 28 are provided between each set of second sliding rods 27 and the second adjusting rods 4. Two sets of intersecting second connecting frames 6, each set of mounting rods 2 having a bidirectional screw 8 rotatably mounted inside, a first bevel gear 12 sleeved on the bidirectional screw 8, and a second bevel gear 13 rotatably mounted inside the fixing block 1, meshing with the first bevel gear 12. Two sets of first connecting frames 28 are rotatably connected to two sets of second connecting frames 6 via rotating shafts. The outer ends of the two sets of first connecting frames 28 are rotatably connected via rotating shafts. The inner ends of both sets of first connecting frames 28 have sliders rotatably mounted on them, and the sliders 7 are slidably connected to the corresponding second adjusting rod 4 or second sliding rod 27. The inner ends of the two sets of second connecting frames 6 are rotatably connected via rotating shafts, and the outer ends of the two sets of second connecting frames 6 are connected to the corresponding second sliding rod 27 via rotating shafts. The two adjusting rods 4 are rotatably connected. The two ends of the bidirectional screw 8 pass through the corresponding first adjusting rods 3 and are threadedly connected to them. Each of the two sets of first adjusting rods 3 has a rotatably mounted screw tube 10. Each of the two sets of screw tubes 10 passes through the corresponding second adjusting rods 4 and is threadedly connected to them. The bidirectional screw 8 has two sets of symmetrically distributed keyways 9. Each of the two sets of screw tubes 10 has two sets of symmetrically distributed key blocks 11, with the key blocks 11 corresponding to the keyways 9. The screw tubes 10 are slidably sleeved with the bidirectional screw 8 through the key blocks 11 and keyways 9. During the rotation of the bidirectional screw 8 in the mounting rod 2, the two sets of first adjusting rods 3 slide synchronously inward or outward within the mounting rod 2 under the limiting action of the mounting rod 2, synchronously driving... The internal solenoid 10 slides synchronously, and under the limiting action of the key block 11 and the keyway 9, it rotates synchronously with the solenoid 10 and the bidirectional screw 8. Therefore, under the limiting action of the two sets of first adjusting rods 3, the second adjusting rod 4 slides in the first adjusting rod 3, completing the bidirectional adjustment of the height and width of the support structure. This allows the support structure to be suitable for various types of fixed installations, reducing the production cost of non-standard parts. The first connecting frame 28 and the second connecting frame 6, which are distributed in a cross pattern, form a truss-like structure between the second sliding rod 27 and the second adjusting rod 4. When adjusting the lateral dimensions of the support structure, the load transmission path is automatically reconstructed, and the concentrated stress is dispersed to the overall frame, effectively improving the bending strength compared with traditional fixed supports.
[0022] like Figure 2 and Figure 3As shown, the second bevel gear 13 is rotatably connected to the fixed block 1 via a mounting shaft 14. Two sets of symmetrically distributed ratchet wheels 15 are sleeved on the mounting shaft 14. Two sets of pawls 16, which mesh with the corresponding ratchet wheels 15, are rotatably installed inside the fixed block 1. Both sets of pawls 16 are rotatably connected to the fixed block 1 via rotating rods 17. A first torsion spring 18 is sleeved on each of the two sets of rotating rods 17. The two ends of the first torsion spring 18 are fixedly connected to the pawls 16 and the fixed block 1, respectively. Gears 19 are sleeved on each of the two sets of rotating rods 17. Two sets of racks 20 are dynamically installed and mesh with corresponding gears 19. A movable frame 21 is slidably installed inside the fixed block 1. The movable frame 21 is fixedly connected to the two sets of racks 20 respectively. A positioning block 22 is fixedly installed on the movable frame 21. A positioning rod 23 corresponding to the positioning block 22 is fixedly installed inside the fixed block 1. Two sets of symmetrical positioning frames 24 are sleeved on the positioning rod 23. The two sets of positioning frames 24 are movably engaged with the positioning block 22 respectively. Two sets of symmetrically distributed second torsion springs 25 are sleeved on the positioning rod 23. The two ends of the torsion spring 25 are fixedly connected to the corresponding positioning frame 24 and positioning rod 23 respectively. When the positioning block 22 is stuck between the two sets of positioning frames 24, the moving frame 21 drives the two sets of racks 20 to shift. Therefore, in conjunction with the gear 19, the rotating rod 17 drives the corresponding pawl 16 to deviate from its original position, releasing the position restriction on the corresponding ratchet 15. At this time, the mounting shaft 14 can rotate according to the actual use requirements, driving the corresponding second bevel gear 13 to rotate. In conjunction with the first bevel gear 12, the double-acting screw 8 is driven, completing the adjustment of the support structure size. After the adjustment is completed, the moving frame 21 is pulled in the opposite direction to disengage the positioning block 22 from the two sets of positioning frames 24. Under the action of the first torsion spring 18, the pawl 16 returns to its original state of meshing with the ratchet 15. The ratchet 15 and pawl 16 lock the mounting shaft 14, that is, lock the double-acting screw 8, so that the support structure can resist a certain torque impact during daily use without displacement, preventing problems such as loosening of the support structure due to vibration during furniture use.
[0023] This utility model provides a fixed furniture anti-deformation support structure. The specific working principle is as follows: During the rotation of the bidirectional screw 8 in the mounting rod 2, the two sets of first adjusting rods 3 slide synchronously inward or outward within the mounting rod 2 under the limiting action of the mounting rod 2, synchronously driving the internal screw tube 10 to slide synchronously. Under the limiting action of the key block 11 and keyway 9, the screw tube 10 rotates synchronously with the bidirectional screw 8. Therefore, under the limiting action of the two sets of first adjusting rods 3, the second adjusting rod 4 slides within the first adjusting rod 3, completing the bidirectional adjustment of the height and width of the support structure. This allows the support structure to be applicable to various types of fixed furniture requiring enhanced support and fixation, reducing the production cost of non-standard parts. The intersecting first connecting frame 28 and second connecting frame 6 form a truss-like structure between the second sliding rod 27 and the second adjusting rod 4. When adjusting the lateral dimensions of the support structure, the load transmission path is automatically reconstructed, dispersing concentrated stress to the overall frame. The bending strength is higher than that of traditional fixed supports. Effectively improving the system, when the positioning block 22 is engaged between the two sets of positioning frames 24, the moving frame 21 drives the two sets of racks 20 to shift. Therefore, in conjunction with the gear 19, the rotating rod 17 drives the corresponding pawl 16 to deviate from its original position, releasing the position restriction on the corresponding ratchet 15. At this time, the mounting shaft 14 can rotate according to actual usage requirements, driving the corresponding second bevel gear 13 to rotate. In conjunction with the first bevel gear 12, the bidirectional screw 8 is driven, completing the adjustment of the support structure size. After the adjustment is completed, the moving frame 21 is pulled in the opposite direction, causing the positioning block 22 to disengage from the two sets of positioning frames 24. Under the action of the first torsion spring 18, the pawl 16 returns to its original state of engagement with the ratchet 15. The ratchet 15 and pawl 16 lock the mounting shaft 14, that is, lock the bidirectional screw 8, so that the support structure can resist certain torque impacts during daily use without displacement, preventing problems such as loosening of the support structure due to vibration during furniture use.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixed furniture anti-deformation support structure, comprising a fixing block (1), characterized in that: The fixed block (1) is provided with two sets of vertically distributed mounting rods (2). Two sets of symmetrically distributed first adjusting rods (3) are slidably installed in each of the two sets of mounting rods (2). Two sets of second adjusting rods (4) are slidably installed in each of the two sets of first adjusting rods (3). Two sets of symmetrically distributed support rods (5) are provided on both sides of the fixed block (1). The ends of the two sets of second adjusting rods (4) that are away from the mounting rods (2) are respectively fixedly connected to the corresponding two sets of support rods (5). Two sets of symmetrically distributed first adjusting rods (4) are slidably installed in each of the two sets of support rods (5). The rod (26) has a second slide rod (27) slidably installed in each of the two sets of first slide rods (26). There are two sets of first connecting frames (28) and two sets of second connecting frames (6) slidably installed between the two sets of second slide rods (27) and the second adjusting rod (4). There are two sets of bidirectional screws (8) rotatably installed in each of the two sets of mounting rods (2). A first bevel gear (12) is sleeved on the bidirectional screw (8). A second bevel gear (13) that meshes with the first bevel gear (12) is rotatably installed in the fixing block (1).
2. The fixed furniture anti-deformation support structure according to claim 1, characterized in that: Two sets of first connecting frames (28) are rotatably connected to two sets of second connecting frames (6) via rotating shafts. The outer ends of the two sets of first connecting frames (28) are rotatably connected via rotating shafts. The inner ends of the two sets of first connecting frames (28) are rotatably mounted with sliders (7). The sliders (7) are slidably connected to the corresponding second adjusting rods (4) or second sliding rods (27). The inner ends of the two sets of second connecting frames (6) are rotatably connected via rotating shafts. The outer ends of the two sets of second connecting frames (6) are rotatably connected to the corresponding second sliding rods (27) or second adjusting rods (4) via rotating shafts.
3. The fixed furniture anti-deformation support structure according to claim 1, characterized in that: The two ends of the bidirectional screw (8) pass through the corresponding first adjusting rod (3) and are threadedly connected to the first adjusting rod (3). A screw tube (10) is rotatably installed in each of the two sets of first adjusting rods (3). The two sets of screw tubes (10) pass through the corresponding second adjusting rod (4) and are threadedly connected to the second adjusting rod (4). Two sets of symmetrically distributed keyways (9) are provided on the bidirectional screw (8). Two sets of symmetrically distributed key blocks (11) are provided in each of the two sets of screw tubes (10). The key blocks (11) are distributed in correspondence with the keyways (9). The screw tubes (10) are slidably sleeved with the bidirectional screw (8) through the key blocks (11) and the keyways (9).
4. The anti-deformation support structure for fixed furniture according to claim 1, characterized in that: The second bevel gear (13) is rotatably connected to the fixed block (1) via the mounting shaft (14). Two sets of symmetrically distributed ratchet wheels (15) are sleeved on the mounting shaft (14). Two sets of pawls (16) that mesh with the corresponding ratchet wheels (15) are rotatably installed inside the fixed block (1). Both sets of pawls (16) are rotatably connected to the fixed block (1) via rotating rods (17). Both sets of rotating rods (17) are sleeved with first torsion springs (18). The two ends of the first torsion springs (18) are fixedly connected to the pawls (16) and the fixed block (1) respectively. Both sets of rotating rods (17) are sleeved with gears (19).
5. The anti-deformation support structure for fixed furniture according to claim 1, characterized in that: Two sets of racks (20) that mesh with the corresponding gears (19) are slidably installed inside the fixed block (1). A movable frame (21) is slidably installed inside the fixed block (1). The movable frame (21) is fixedly connected to the two sets of racks (20) respectively. A positioning block (22) is fixedly installed on the movable frame (21).
6. The fixed furniture anti-deformation support structure according to claim 1, characterized in that: The fixing block (1) is fixedly installed with a positioning rod (23) corresponding to the positioning block (22). Two sets of symmetrical positioning frames (24) are sleeved on the positioning rod (23), and the two sets of positioning frames (24) are respectively engaged with the positioning block (22).
7. The fixed furniture anti-deformation support structure according to claim 6, characterized in that: Two sets of symmetrically distributed second torsion springs (25) are sleeved on the positioning rod (23), and the two ends of the two sets of second torsion springs (25) are fixedly connected to the corresponding positioning frame (24) and positioning rod (23) respectively.