Safe adjustable support

By setting a protective cloth sleeve and sealing ring structure on the screw, the problem of dust and impurities entering the thread groove and causing jamming is solved, and the adjustable nut can be smoothly adjusted and the support can be used stably.

CN224228233UActive Publication Date: 2026-05-12JIANGSU ZHENGYUAN INSPECTION & TESTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ZHENGYUAN INSPECTION & TESTING CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

External dust or impurities entering the threaded grooves of the screw can cause the adjustable nut to jam, affecting the performance of the support.

Method used

A protective cloth sleeve is installed on the screw, which is made of nylon material to shield the screw. Combined with the design of sealing ring and anti-loosening bolt, it prevents impurities from entering the thread groove. It can also be folded to facilitate the movement of the adjustable nut.

Benefits of technology

It effectively prevents impurities from entering the thread groove, avoids jamming, ensures smooth adjustment of the adjustable nut, and improves the reliability and convenience of the support.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224228233U_ABST
    Figure CN224228233U_ABST
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Abstract

The utility model relates to the field of supports, and discloses a safe adjustable support which comprises a bottom plate, a screw rod is installed on the top of the bottom plate, an adjustable nut is connected to the outer wall of the screw rod in a threaded mode, a first installation disc is installed at the bottom of the adjustable nut through a first anti-loosening bolt, and a sliding groove is formed in the bottom of the first installation disc. And a sliding ring is arranged in the sliding groove, a first sealing ring is mounted at the bottom of the sliding ring, and a second mounting disc is mounted at the top of the bottom plate through a second anti-loosening bolt. The protective cloth cylinder is arranged to shield and protect the screw rod and prevent impurities from entering threads of the screw rod, so that the adjustable nut is prevented from being clamped due to the impurities in the threads of the screw rod, the position of the adjustable nut can be smoothly adjusted, the protective cloth cylinder is made of nylon materials, and therefore the protective cloth cylinder can be folded, and the protective cloth cylinder is convenient to use. And meanwhile, movement of the adjustable nut on the screw rod is prevented from being hindered.
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Description

Technical Field

[0001] This utility model relates to the field of support, specifically a safe and adjustable support. Background Technology

[0002] Disc-lock scaffolding is a common modern scaffolding system with advantages such as simple structure, quick installation, and high stability. Its main structural components include uprights, horizontal bars, diagonal braces, disc locks, supports, scaffold boards, safety railings, and connectors. Among them, the adjustable supports are an important component, mainly used to provide support for the scaffolding and allow for height and position adjustments during construction. Adjustable supports typically include an adjustment mechanism, such as a threaded rod and an adjustment device, which allows for adjustment of length or angle within a certain range. The adjustment device usually consists of a threaded cylinder and a rotating block fixed to the threaded cylinder.

[0003] According to Chinese Patent No. CN221703113U, an adjustable support for disc-lock scaffolding is disclosed. This utility model has a sliding toothed plate inside the rotating cylinder. When the rotating cylinder needs to be adjusted to a large distance from the screw surface, the toothed plate is retracted into the rotating cylinder, and the rotating cylinder can slide freely on the screw surface. After adjusting to the appropriate position, the toothed plate is extended and meshes with the screw. Finally, the rotating plate is used to make precise adjustments to the rotating cylinder, which reduces the adjustment time and the cumbersome operation in the adjustment process.

[0004] Regarding the aforementioned patent content, the support is equipped with a screw and an adjustable nut. When the adjustable nut is rotated, it moves on the screw, thus achieving adjustment. During use, the screw part above the adjustable nut is inserted into the upright, but the screw part below the adjustable nut is constantly exposed to the external environment. Since the support is generally used in construction sites where there is a lot of dust and impurities, dust or impurities can enter the thread groove of the screw exposed to the external environment. When a lot of dust or impurities accumulate in the thread groove of the screw, it will be difficult to adjust the height of the adjustable nut, causing the adjustable nut to get stuck, thus affecting the use effect of the support. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a safe and adjustable support to solve the technical problem that external dust or impurities may enter the threaded groove of the screw and thus affect the subsequent adjustment of the height of the adjustable nut.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a safe and adjustable support, including a base plate, a screw installed on the top of the base plate, and an adjustable nut threaded onto the outer wall of the screw. A first mounting plate is installed on the bottom of the adjustable nut via a first anti-loosening bolt, and a sliding groove is provided on the bottom of the first mounting plate. A sliding ring is provided inside the sliding groove, and a first sealing ring is installed on the bottom of the sliding ring. A second mounting plate is installed on the top of the base plate via a second anti-loosening bolt, and a second sealing ring is fixed on the top of the second mounting plate. A protective cloth sleeve is connected between the second sealing ring and the first sealing ring.

[0007] By adopting the above technical solution, when adjusting the height of the adjustable nut, the operator can press down on the first sealing ring and then rotate the adjustable nut. At this time, the first sealing ring is pressed down, thereby preventing the first sealing ring from rotating.

[0008] Furthermore, the slide groove is arranged in a ring shape, and the slide ring is slidably connected to the slide groove.

[0009] By adopting the above technical solution, the adjustable nut can drive the slip ring to slide inside the slide groove when it rotates.

[0010] Furthermore, the screw is located inside the protective cloth sleeve, and the screw is welded to the base plate.

[0011] By adopting the above technical solution, the protective cloth sleeve can shield and protect the screw section below the adjustable nut, preventing external impurities from falling into the thread groove of the screw during use, while the screw section above the adjustable nut can be inserted into the upright of the scaffold without shielding or protection.

[0012] Furthermore, the protective cloth tube is made of nylon material.

[0013] By adopting the above technical solution, the protective cloth tube made of nylon material can be folded so that the adjustable nut can move smoothly on the screw.

[0014] Furthermore, the protective cloth tube and the second mounting plate are detachably connected to the base plate via the second anti-loosening bolt.

[0015] By adopting the above technical solution, the protective cloth tube and the second mounting plate can be removed from the base plate.

[0016] Furthermore, the second sealing ring and the first sealing ring are polyurethane sealing rings.

[0017] By adopting the above technical solution, the setting of the first sealing ring improves the sealing performance between the protective cloth sleeve and the first mounting plate.

[0018] Furthermore, washers are welded to both sides of the adjustable nut.

[0019] By adopting the above technical solution, when the adjustable nut is rotated, the movement of the adjustable nut will drive the pad to move, thereby adjusting the position of the pad.

[0020] Furthermore, the first mounting plate is detachably connected to the adjustable nut via a first anti-loosening bolt.

[0021] By adopting the above technical solution, when disassembling the first mounting plate, the first anti-loosening bolt can be unscrewed, and then the first mounting plate and the adjustable nut can be separated.

[0022] Furthermore, the surface of the protective fabric tube is coated with a polyvinyl chloride layer.

[0023] By adopting the above technical solution, the addition of a polyvinyl chloride layer can improve the waterproof performance of the protective fabric sleeve.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model is equipped with a protective cloth sleeve to shield and protect the screw, preventing impurities from entering the screw thread. This prevents the adjustable nut from getting stuck due to impurities in the screw thread, thus allowing the position of the adjustable nut to be adjusted smoothly. The protective cloth sleeve is made of nylon material, which can be folded, and at the same time avoids hindering the movement of the adjustable nut on the screw.

[0026] 2. This utility model improves the waterproof performance of the protective cloth tube by providing a polyvinyl chloride layer. At the same time, the protective cloth tube can be disassembled and replaced by the first anti-loosening bolt, the first mounting plate, the second anti-loosening bolt and the second mounting plate. It is provided with a slip ring and a sliding groove so that the slip ring can slide smoothly inside the sliding groove. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the screw structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the protective cloth tube structure of this utility model;

[0031] Figure 5 This is a bottom view of the first mounting plate structure of this utility model.

[0032] In the diagram: 1. Base plate; 2. Screw; 3. Adjustable nut; 4. Washer plate; 5. First mounting plate; 6. Slide groove; 7. Slip ring; 8. First sealing ring; 9. First anti-loosening bolt; 10. Second mounting plate; 11. Second sealing ring; 12. Second anti-loosening bolt; 13. Protective cloth sleeve; 14. Polyvinyl chloride layer. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Example 1:

[0036] A safe and adjustable support, such as Figures 1-5 As shown, the system includes a base plate 1, with a screw 2 mounted on the top of the base plate 1. The screw 2 is fixed to the base plate 1 by welding, and the weld height between the screw 2 and the base plate 1 is ≥6mm. The weld is full-circumference and inspected after welding to improve fracture resistance, enhance the stability between the screw 2 and the base plate 1, and improve the safety of the support during use. The diameter of the screw 2 should not be less than 36mm. An adjustable nut 3 is threaded onto the outer wall of the screw 2. A first mounting plate 5 is mounted on the bottom of the adjustable nut 3 via a first anti-loosening bolt 9. A groove 6 is provided at the bottom, and a slip ring 7 is provided inside the groove 6. A first sealing ring 8 is installed at the bottom of the slip ring 7. A second mounting plate 10 is installed on the top of the base plate 1 by a second anti-loosening bolt 12, and a second sealing ring 11 is fixed on the top of the second mounting plate 10. A protective cloth sleeve 13 is connected between the second sealing ring 11 and the first sealing ring 8. When adjusting the height of the adjustable nut 3, the operator can hold the first sealing ring 8 and then rotate the adjustable nut 3. At this time, the first sealing ring 8 is pressed down, thereby preventing the first sealing ring 8 from rotating.

[0037] See Figures 1-5 The protective cloth tube 13 and the second mounting plate 10 are detachably connected to the base plate 1 via the second anti-loosening bolt 12, so that the protective cloth tube 13 and the second mounting plate 10 can be removed from the base plate 1. The second sealing ring 11 and the first sealing ring 8 are polyurethane sealing rings, which are used to enhance the sealing performance at both ends of the protective cloth tube 13. The adjustable nut 3 has a washer 4 welded on both sides, so that when the adjustable nut 3 is rotated, the movement of the adjustable nut 3 will drive the washer 4 to move, thereby adjusting the position of the washer 4. The first mounting plate 5 is detachably connected to the adjustable nut 3 via the first anti-loosening bolt 9. When the first mounting plate 5 is removed, the first anti-loosening bolt 9 can be unscrewed, and then the first mounting plate 5 and the adjustable nut 3 can be separated.

[0038] See Figures 2-5 The slide groove 6 is ring-shaped, and the slide ring 7 is slidably connected to the slide groove 6. When the adjustable nut 3 is rotated, it can drive the slide ring 7 to slide inside the slide groove 6. The screw 2 is located inside the protective cloth sleeve 13. The screw 2 is welded to the base plate 1. The protective cloth sleeve 13 can shield and protect the part of the screw 2 below the adjustable nut 3 to prevent external impurities from falling into the thread groove of the screw 2 during use. The part of the screw 2 above the adjustable nut 3 is inserted into the upright of the scaffold and therefore does not need to be shielded or protected.

[0039] Example 2:

[0040] Based on the above embodiment 1, in order to make the protective cloth tube 13 foldable, the following materials will be used to make the protective cloth tube 13.

[0041] See Figures 1-4 The protective cloth tube 13 is made of nylon material. The nylon protective cloth tube 13 can be folded so that the adjustable nut 3 can move smoothly on the screw 2.

[0042] Example 3:

[0043] Based on the above embodiment 1, in order to improve the waterproof performance of the protective cloth sleeve 13, the following structure will be set.

[0044] Specifically, the surface of the protective fabric tube 13 is coated with a polyvinyl chloride layer 14, which improves the waterproof performance of the protective fabric tube 13.

[0045] The working principle of this utility model is as follows: First, by setting a protective cloth tube 13, the screw 2 is shielded and protected to prevent impurities from entering the threads of the screw 2, thereby preventing the adjustable nut 3 from getting stuck due to impurities in the threads of the screw 2, and thus the position of the adjustable nut 3 can be adjusted smoothly. The protective cloth tube 13 is made of nylon material, so it can be folded, while avoiding obstructing the movement of the adjustable nut 3 on the screw 2. The presence of a polyvinyl chloride layer 14 can improve the waterproof performance of the protective cloth tube 13.

[0046] When the position of the adjustable nut 3 needs to be adjusted, the worker can hold the first sealing ring 8 and then rotate the adjustable nut 3. The rotation of the adjustable nut 3 drives the first mounting plate 5 to rotate, which in turn causes the slip ring 7 to slide inside the sliding groove 6. Since the first sealing ring 8 is pressed down, it is prevented from rotating, thereby preventing the protective cloth tube 13 from rotating. At the same time, when the adjustable nut 3 moves, it will drive the first mounting plate 5 to move and drive the first sealing ring 8 to move. At this time, the protective cloth tube 13 is folded or unfolded.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A safe and adjustable support, comprising a base plate (1), characterized in that: A screw (2) is installed on the top of the base plate (1), and an adjustable nut (3) is threaded onto the outer wall of the screw (2). A first mounting plate (5) is installed on the bottom of the adjustable nut (3) by a first anti-loosening bolt (9). A sliding groove (6) is provided on the bottom of the first mounting plate (5), and a sliding ring (7) is provided inside the sliding groove (6). A first sealing ring (8) is installed on the bottom of the sliding ring (7). A second mounting plate (10) is installed on the top of the base plate (1) by a second anti-loosening bolt (12), and a second sealing ring (11) is fixed on the top of the second mounting plate (10). A protective cloth sleeve (13) is connected between the second sealing ring (11) and the first sealing ring (8).

2. The adjustable safety support according to claim 1, characterized in that: The groove (6) is arranged in a ring shape, and the sliding ring (7) is slidably connected to the groove (6).

3. The safety adjustable support according to claim 1, characterized in that: The screw (2) is located inside the protective cloth cylinder (13), and the screw (2) is welded to the base plate (1).

4. The adjustable safety support according to claim 1, characterized in that: The protective cloth tube (13) is made of nylon material.

5. A safe adjustable support according to claim 1, characterized in that: The protective cloth tube (13) and the second mounting plate (10) are detachably connected to the base plate (1) by the second anti-loosening bolt (12).

6. The safety adjustable support according to claim 1, characterized in that: The second sealing ring (11) and the first sealing ring (8) are polyurethane sealing rings.

7. A safe adjustable support according to claim 1, characterized in that: The adjustable nut (3) has washers (4) welded on both sides.

8. A safe adjustable support according to claim 1, characterized in that: The first mounting plate (5) is detachably connected to the adjustable nut (3) via the first anti-loosening bolt (9).

9. A safe adjustable support according to claim 1, characterized in that: The surface of the protective cloth tube (13) is coated with a polyvinyl chloride layer (14).