Anti-deformation pull rod for ultra-long cabinet door

By using a two-way lead screw and a movable plate structure, the problem of swaying during the installation of extra-long cabinet door anti-deformation pull rods is solved, enhancing the rigidity and anti-deformation effect of the device, making it suitable for environments with high humidity.

CN224124397UActive Publication Date: 2026-04-14CHENGDU SITONG RUIKUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing anti-deformation rods for extra-long cabinet doors are prone to wobbling during installation and are not effective in preventing deformation in humid environments, especially in southern regions.

Method used

The device employs a bidirectional lead screw and a movable plate structure. The bidirectional lead screw is rotated by a handwheel, causing the movable plate to move within the mounting groove. This causes the hinge plate and top plate to fit against the inner wall of the mounting groove, enhancing the fixing effect. Furthermore, a reinforcing plate is used to strengthen the overall rigidity of the device.

Benefits of technology

It effectively prevents the pull rod from wobbling, improves the anti-deformation effect, and maintains the stability and rigidity of the cabinet door, especially in high humidity environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a super-long cabinet door anti-deformation pull rod which comprises a cabinet door body, an installation groove is formed in the cabinet door body, a fixing plate is arranged in the installation groove and rotationally connected with the outer side of a two-way lead screw, the top end of the two-way lead screw is fixedly connected with a hand wheel, and the bottom face of the fixing plate is hinged to one end of a first hinge plate. The side face of the top plate is hinged to one end of a second hinge plate, the other end of the second hinge plate is movably hinged to a movable plate, and a sliding groove is formed in the movable plate. The two-way lead screw enables the movable plate to drive the second hinge plate so that the top plate can be attached to the inner wall of the installation groove, the whole pull rod is fixed in the installation groove, the situation that the whole pull rod shakes is avoided, the installation difficulty of the whole device is lowered, and the anti-deformation effect of the device is ensured; and the anti-deformation effect of the whole device is effectively enhanced through the reinforcing plate, and the rigidity of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of cabinet door technology, specifically to an extra-long cabinet door anti-deformation pull rod. Background Technology

[0002] Cabinet doors are mostly made from pre-cut particleboard, OSB, or plywood. However, the mechanical balance of the cut boards is disrupted, making the cabinet door material very prone to deformation and bending, especially for extra-long cabinet doors. The current solution is to install anti-deformation rods to prevent deformation; these rods are made of rigid metal.

[0003] Existing extra-long cabinet doors have mounting grooves on the sides, where anti-deformation pull rods are slidably installed. However, during actual installation and use, the pull rods slide within the grooves, causing them to wobble and create gaps, which affects their anti-deformation effect. In addition, existing extra-long cabinet doors rely on only one pull rod for rigid support, resulting in limited anti-deformation performance, especially in the humid southern environment. Utility Model Content

[0004] The purpose of this utility model is to provide an extra-long cabinet door anti-deformation pull rod to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an extra-long cabinet door anti-deformation pull rod, comprising a cabinet door body, an installation groove inside the cabinet door body, a fixing plate inside the installation groove, the fixing plate being rotatably connected to the outer side of a bidirectional lead screw, the top end of the bidirectional lead screw being fixedly connected to a handwheel, the bottom surface of the fixing plate being hinged to one end of a hinge plate, the other end of the hinge plate being movably hinged to a top plate, the side of the top plate being hinged to one end of a second hinge plate, the other end of the second hinge plate being movably hinged to a moving plate, a sliding groove being provided on the moving plate, a slider being provided inside the sliding groove, and the slider being hinged to one end of a reinforcing plate.

[0006] Preferably, the mounting groove is slidably fitted to the outside of the fixing plate, the fixing plates are symmetrically distributed on both sides of the bidirectional lead screw, and the top of the fixing plate passes through the fixing plate and is fixedly connected to the handwheel.

[0007] Preferably, the two sides of the bidirectional lead screw are provided with opposite threads, the movable plates are symmetrically distributed on both sides of the bidirectional lead screw, and the movable plates are connected to the outer thread of the bidirectional lead screw through threaded holes.

[0008] Preferably, the hinge plates are symmetrically distributed on both sides of the fixed plate, and the two ends of the hinge plates are movably hinged to the fixed plate and the top plate respectively. The side of the top plate is fixedly connected to the anti-slip pad.

[0009] Preferably, the two ends of the second hinge plate are movably hinged to the top plate and the movable plate, respectively, and the first hinge plate and the second hinge plate are distributed on both sides of the top plate.

[0010] Preferably, the movable plate is slidably connected to the slider via a groove, and the grooves are symmetrically distributed on the movable plate.

[0011] Preferably, there are two reinforcing plates, which are distributed on both sides of the bidirectional lead screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention inserts a fixed plate into an installation groove, and then moves a movable plate within the groove by rotating a bidirectional lead screw. This moves hinge plate one and hinge plate two, causing the top plate to move and fit against the inner wall of the installation groove. The top plate fixes the entire tie rod within the installation groove, preventing overall wobbling and reducing the difficulty of installation. This ensures the device's anti-deformation effect. The synchronous movement of the movable plate also moves the reinforcing plate synchronously, effectively enhancing the overall device's anti-deformation effect and improving its rigidity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the cabinet door body structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the bidirectional lead screw and the top plate of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Cabinet door body; 2. Mounting groove; 3. Fixing plate; 4. Two-way screw rod; 5. Handwheel; 6. Hinge plate one; 7. Top plate; 8. Hinge plate two; 9. Moving plate; 10. Slide groove; 11. Sliding block; 12. Reinforcing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: an extra-long cabinet door anti-deformation pull rod, including a cabinet door body 1, an installation groove 2 inside the cabinet door body 1, the installation groove 2 slidingly engaging with the outer side of a fixed plate 3, the fixed plate 3 rotatably connecting to the outer side of a bidirectional lead screw 4, the bidirectional lead screw 4 having opposite threads on both sides, movable plates 9 symmetrically distributed on both sides of the bidirectional lead screw 4, the movable plates 9 being threadedly connected to the outer side of the bidirectional lead screw 4 through threaded holes, the top end of the bidirectional lead screw 4 being welded and fixed to a handwheel 5, the top end of the fixed plate 3 passing through the fixed plate 3 and welded and fixed to the handwheel 5, rotating the handwheel 5 causes the bidirectional lead screw 4 to rotate, thereby causing the movable plates 9 on both sides to move.

[0021] The mounting groove 2 slides inside the fixed plate 3. The fixed plates 3 are symmetrically distributed on both sides of the double-acting screw 4. The first hinge plate 6 is symmetrically distributed on both sides of the fixed plate 3. The bottom surface of the fixed plate 3 is hinged to one end of the first hinge plate 6, and the other end of the first hinge plate 6 is movably hinged to the top plate 7. The side of the top plate 7 is hinged to one end of the second hinge plate 8, and the other end of the second hinge plate 8 is movably hinged to the moving plate 9. The rotation of the double-acting screw 4 causes the moving plates 9 on both sides to move apart. The movement of the moving plates 9 causes the second hinge plate 8 to push the top plate 7 outward. At the same time, the first hinge plate 6 pushes the top plate 7 outward until the top plate 7 is in contact with the inner wall of the mounting groove 2. The fixed plate 3 and the double-acting screw 4 are installed and fixed inside the mounting groove 2 by the support of the top plate 7.

[0022] The hinge plate 6 is hinged at both ends to the fixed plate 3 and the top plate 7 respectively. The side of the top plate 7 is welded and fixed to the anti-slip pad. The anti-slip pad on the side of the top plate 7 fits against the inner wall of the mounting groove 2, thereby ensuring the stability of the installation of the fixed plate 3 and the double-acting screw 4.

[0023] A groove 10 is formed on the movable plate 9, and a slider 11 is slidably connected inside the groove 10. The slider 11 is hinged to one end of the reinforcing plate 12. The slider 11 slides inside the groove 10, so that the movement of the movable plate 9 is not interfered with by the reinforcing plate 12. At the same time, the reinforcing plate 12 can enhance the protective effect of the fixed plate 3, the bidirectional lead screw 4, and the overall structure.

[0024] The two ends of the hinge plate 8 are respectively hinged to the top plate 7 and the movable plate 9. The hinge plate 6 and the hinge plate 8 are distributed on both sides of the top plate 7. The movable plate 9 is slidably connected to the slider 11 through the slide groove 10. The slide groove 10 is symmetrically distributed on the movable plate 9. There are two reinforcing plates 12, which are distributed on both sides of the double-acting screw 4. By moving the movable plate 9 up and down, the slider 11 slides inside the slide groove 10, thereby coordinating the movement of the reinforcing plates 12 with the movement of the movable plate 9, enhancing the rigidity of the fixed plate 3, the double-acting screw 4, and the movable plate 9.

[0025] Working principle: During installation and use, the fixing plate 3 at the bottom of the double-acting screw 4 is inserted into the mounting groove 2. Then, the handwheel 5 is turned to rotate the double-acting screw 4. The rotation of the double-acting screw 4 drives the moving plates 9 on both sides to move apart. The movement of the moving plates 9 drives the hinge plate 8 to push the top plate 7 outward. At the same time, the hinge plate 6 pushes the top plate 7 outward until the top plate 7 is in contact with the inner wall of the mounting groove 2. The fixing plate 3 and the double-acting screw 4 are fixed in the mounting groove 2 by the support of the top plate 7, which avoids the situation where the fixing plate 3 and the double-acting screw 4 shake due to unstable fixing, thus reducing the protective effect. In addition, the lifting and lowering movement of the moving plate 9 causes the slider 11 to slide inside the slide groove 10, thereby coordinating the movement of the reinforcing plate 12 with the movement of the moving plate 9. The moving plate 9 and the reinforcing plate 12 effectively enhance the anti-deformation strength of the fixing plate 3, the double-acting screw 4 and the moving plate 9.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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. An extra-long cabinet door anti-deformation pull rod, comprising a cabinet door body (1), characterized in that: The cabinet door body (1) has an installation groove (2) inside, and a fixing plate (3) is set inside the installation groove (2). The fixing plate (3) is rotatably connected to the outside of the double-acting screw (4). The top of the double-acting screw (4) is fixedly connected to the handwheel (5). The bottom surface of the fixing plate (3) is hinged to one end of the hinge plate (6). The other end of the hinge plate (6) is movably hinged to the top plate (7). The side of the top plate (7) is hinged to one end of the hinge plate (8). The other end of the hinge plate (8) is movably hinged to the moving plate (9). A sliding groove (10) is opened on the moving plate (9). A slider (11) is set inside the sliding groove (10). The slider (11) is hinged to one end of the reinforcing plate (12).

2. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: The mounting groove (2) is slidably fitted to the outside of the fixing plate (3). The fixing plate (3) is symmetrically distributed on both sides of the bidirectional lead screw (4). The top of the fixing plate (3) passes through the fixing plate (3) and is fixedly connected to the handwheel (5).

3. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: The two-way lead screw (4) has opposite threads on both sides, and the moving plate (9) is symmetrically distributed on both sides of the two-way lead screw (4). The moving plate (9) is threadedly connected to the outer side of the two-way lead screw (4) through a threaded hole.

4. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: The hinge plate (6) is symmetrically distributed on both sides of the fixed plate (3). The two ends of the hinge plate (6) are movably hinged to the fixed plate (3) and the top plate (7) respectively. The side of the top plate (7) is fixedly connected to the anti-slip pad.

5. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: The two ends of the second hinge plate (8) are movably hinged to the top plate (7) and the movable plate (9) respectively. The first hinge plate (6) and the second hinge plate (8) are distributed on both sides of the top plate (7).

6. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: The movable plate (9) is slidably connected to the slider (11) through the slide groove (10), and the slide groove (10) is symmetrically distributed on the movable plate (9).

7. The extra-long cabinet door anti-deformation pull rod according to claim 1, characterized in that: There are two reinforcing plates (12), which are distributed on both sides of the bidirectional lead screw (4).