Special small spring fastening device with adjustable elasticity
By designing an adjustable angle and elasticity mounting component, the problem of low installation efficiency and unstable fastening effect of spring fastening devices in different installation scenarios and object shapes in the prior art has been solved, realizing efficient installation and stable fastening of spring fastening devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EXCELLENT HARDWARE SPRING (SHENZHEN) CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-15
AI Technical Summary
The lack of an angle adjustment structure in existing technology makes it difficult to adjust the compression spring to the appropriate installation angle in different installation scenarios and object shapes, affecting the fastening effect and installation efficiency.
An installation and adjustment assembly including a rotating frame, a rotating plate, a sleeve, a spring, and a threaded rod is designed. The angle and elastic force of the spring can be adjusted through rotational and threaded connections to adapt to different installation environments and object shapes.
It enables flexible angle adjustment and precise elastic force adjustment of the spring fastening device, improving installation adaptability and the stability of the fastening effect.
Smart Images

Figure CN224245309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastening technology, specifically a special small spring fastening device with adjustable elasticity. Background Technology
[0002] Compression springs are helical springs that withstand axial pressure. Springs are generally divided into equal pitch springs and variable pitch springs. Compression springs come in various shapes, including cylindrical, conical, convex, concave, and a few non-circular. There is a certain gap between the coils of a compression spring. When subjected to an external load, the spring contracts and deforms, storing deformation energy.
[0003] Existing technologies lack angle adjustment structures, making it difficult to adjust to a suitable installation angle when facing different installation scenarios and object shapes. This results in low installation efficiency and may even affect the fastening effect due to an unsuitable angle, causing problems such as unstable installation. To address this, we propose a special small spring fastening device with adjustable elasticity. Utility Model Content
[0004] The purpose of this invention is to provide a special small spring fastening device with adjustable elasticity.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a special small spring fastening device with adjustable elastic force, comprising a first mounting plate and a second mounting plate, wherein a mounting component and an adjustment component are respectively provided between the first mounting plate and the second mounting plate;
[0006] The mounting assembly includes a rotating frame, a rotating plate, a first sleeve, a telescopic sleeve, a first spring, a threaded rod, and a pulling block. The side of the rotating frame is rotatably connected to the inner wall of the first mounting plate, and the side of the rotating plate is rotatably connected to the inner wall of the rotating frame. The second mounting plate has the same structure as the first mounting plate. The top end of the telescopic sleeve is connected to the lower end face of the rotating plate inside the first mounting plate, and the bottom end of the first sleeve is connected to the upper end face of the rotating plate inside the second mounting plate. The surface of the telescopic sleeve is slidably connected to the inner wall of the first sleeve. The inner wall of the pulling block is threadedly connected to the surface of the threaded rod. The first spring is sleeved on the surfaces of the first sleeve and the telescopic sleeve.
[0007] The adjustment assembly includes a second sleeve, a connecting rod, a rotating shell, a rotating block, and a second spring. The lower end face of the first mounting plate and the upper end face of the second mounting plate are rotatably connected to the side of the rotating shell. The inner wall of the rotating shell is rotatably connected to the side of the rotating block. The top end of the second sleeve is connected to the lower end face of the rotating block inside the first mounting plate. The bottom end of the connecting rod is connected to the upper end face of the rotating block inside the second mounting plate. The surface of the connecting rod is slidably connected to the inner wall of the second sleeve.
[0008] As a further embodiment of this utility model: the top end of the first spring is connected to the lower end face of the rotating plate inside the first mounting plate, and the bottom end of the first spring is connected to the upper end face of the rotating plate inside the second mounting plate.
[0009] As a further embodiment of this utility model: a second spring is connected to the inner wall of the second sleeve, and the bottom end of the second spring is connected to the top end of the connecting rod.
[0010] As a further embodiment of this utility model: the side of the pulling block is slidably connected to the inner wall of the telescopic sleeve, and the shape of the side of the pulling block matches the shape of the inner wall of the telescopic sleeve.
[0011] As a further embodiment of this utility model: a second limiting strip is connected to the side of the rotating shell, and the side of the second limiting strip is slidably connected to the inner wall of the first mounting plate.
[0012] As a further embodiment of this utility model: a first limiting strip is connected to the side of the rotating block, and the side of the first limiting strip is slidably connected to the inner wall of the rotating shell.
[0013] As a further embodiment of this utility model: the surface of the threaded rod is rotatably connected to the upper end face of the inner rotating plate of the second mounting plate, and the bottom end of the threaded rod passes through the lower end face of the inner rotating plate of the second mounting plate and is connected to a nut.
[0014] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0015] 1. This utility model, through the rotating connection design between the rotating frame and the inner wall of the first mounting plate, the rotating plate and the inner wall of the rotating frame, and the same structure of the second mounting plate and the first mounting plate, enables the mounting components to flexibly adjust the angle. In the actual installation process, the device can be adjusted to the optimal installation angle according to different installation environments and object shapes, thereby enhancing the installation adaptability of the device and improving installation efficiency.
[0016] 2. This utility model can precisely adjust the compression or extension of the first spring by rotating the threaded rod, utilizing the threaded connection between the pulling block and the threaded rod, as well as the sliding connection between the pulling block and the inner wall of the telescopic sleeve. This allows for precise changes in the spring force, meeting diverse needs for fastening strength in different scenarios and ensuring a stable and reliable fastening effect.
[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0018] Figure 1This is an overall schematic diagram of an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the first sleeve in an embodiment of the present utility model;
[0020] Figure 3 This is a schematic diagram of the rotating frame in an embodiment of the present utility model;
[0021] Figure 4 This is a cross-sectional schematic diagram of the second sleeve in an embodiment of this utility model;
[0022] Figure 5 This is a cross-sectional schematic diagram of the first sleeve in an embodiment of the present utility model;
[0023] Figure 6 This is a schematic diagram of the threaded rod in an embodiment of the present utility model;
[0024] Figure 7 This is a cross-sectional schematic diagram of the rotating shell in an embodiment of the present utility model;
[0025] Figure 8 This is a schematic diagram of the first limiting strip in an embodiment of the present utility model.
[0026] In the diagram: 1. First mounting plate; 2. Mounting assembly; 21. Rotating frame; 22. Rotating plate; 23. First sleeve; 24. Telescopic sleeve; 25. First spring; 26. Threaded rod; 27. Pulling block; 3. Adjusting assembly; 31. Second sleeve; 32. Connecting rod; 33. Rotating shell; 34. Rotating block; 35. First limiting strip; 36. Second limiting strip; 37. Second spring; 4. Second mounting plate. Detailed Implementation
[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0028] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] Please see the appendix Figure 1 -Appendix Figure 8 The present invention provides a special small spring fastening device with adjustable elasticity, comprising a first mounting plate 1 and a second mounting plate 4, wherein a mounting component 2 and an adjustment component 3 are respectively provided between the first mounting plate 1 and the second mounting plate 4;
[0030] Mounting assembly 2 includes a rotating frame 21, a rotating plate 22, a first sleeve 23, a telescopic sleeve 24, a first spring 25, a threaded rod 26, and a pulling block 27. The side of the rotating frame 21 is rotatably connected to the inner wall of the first mounting plate 1, and the side of the rotating plate 22 is rotatably connected to the inner wall of the rotating frame 21. The second mounting plate 4 has the same structure as the first mounting plate 1. The top end of the telescopic sleeve 24 is connected to the lower end face of the rotating plate 22 in the first mounting plate 1, and the bottom end of the first sleeve 23 is connected to the upper end face of the rotating plate 22 in the second mounting plate 4. The surface of the telescopic sleeve 24 is slidably connected to the inner wall of the first sleeve 23. The inner wall of the pulling block 27 is threadedly connected to the surface of the threaded rod 26. The first spring 25 is sleeved on the surfaces of the first sleeve 23 and the telescopic sleeve 24. The side of the pulling block 27 is slidably connected to the inner wall of the telescopic sleeve 24, and the shape of the side of the pulling block 27 matches the shape of the inner wall of the telescopic sleeve 24.
[0031] The adjusting assembly 3 includes a second sleeve 31, a connecting rod 32, a rotating shell 33, a rotating block 34, and a second spring 37. The lower end face of the first mounting plate 1 and the upper end face of the second mounting plate 4 are rotatably connected to the side of the rotating shell 33. The inner wall of the rotating shell 33 is rotatably connected to the side of the rotating block 34. The top end of the second sleeve 31 is connected to the lower end face of the rotating block 34 inside the first mounting plate 1. The bottom end of the connecting rod 32 is connected to the upper end face of the rotating block 34 inside the second mounting plate 4. The surface of the connecting rod 32... The rotating shell 33 is slidably connected to the inner wall of the second sleeve 31. The side of the rotating shell 33 is connected to the second limiting strip 36, and the side of the second limiting strip 36 is slidably connected to the inner wall of the first mounting plate 1. The side of the rotating block 34 is connected to the first limiting strip 35, and the side of the first limiting strip 35 is slidably connected to the inner wall of the rotating shell 33. The surface of the threaded rod 26 is rotatably connected to the upper end face of the rotating plate 22 inside the second mounting plate 4. The bottom end of the threaded rod 26 passes through the lower end face of the rotating plate 22 inside the second mounting plate 4 and is connected to a nut.
[0032] In the first embodiment, the top end of the first spring 25 is connected to the lower end face of the rotating plate 22 inside the first mounting plate 1, and the bottom end of the first spring 25 is connected to the upper end face of the rotating plate 22 inside the second mounting plate 4.
[0033] Specifically, the first spring 25 is a key component for generating elastic force. It is sleeved on the surface of the first sleeve 23 and the telescopic sleeve 24, and its two ends are respectively connected to the rotating plate 22 inside the first mounting plate 1 and the second mounting plate 4, providing the elastic force required for fastening the device.
[0034] In the second embodiment, a second spring 37 is connected to the inner wall of the second sleeve 31, and the bottom end of the second spring 37 is connected to the top end of the connecting rod 32.
[0035] Specifically, the second spring 37 is connected to the inner wall of the second sleeve 31 and the top of the connecting rod 32. It can provide a certain buffer force and auxiliary elastic force during the adjustment process, making the adjustment process smoother, and at the same time, it can also play a fine-tuning role on the elastic force of the device.
[0036] Working principle:
[0037] First, the rotating frame 21 is rotatably connected to the inner wall of the first mounting plate 1, and the rotating plate 22 is rotatably connected to the inner wall of the rotating frame 21. The second mounting plate 4 has the same structure as the first mounting plate 1. This structure allows for flexible adjustment of the angle of the mounting component 2 to adapt to different installation scenarios. The telescopic sleeve 24 is slidably connected to the first sleeve 23 to provide guidance and support for the first spring 25. The first spring 25 is sleeved on the surfaces of both, and its two ends are connected to the rotating plate 22 inside the first mounting plate 1 and the second mounting plate 4 to provide fastening elasticity. When the threaded rod 26 is rotated, the pulling block 27 is threadedly connected to the threaded rod 26 and slidably connected to the inner wall of the telescopic sleeve 24. The pulling block 27 will slide inside the telescopic sleeve 24, thereby adjusting the compression or tension of the first spring 25, changing the spring force, and meeting different fastening force requirements.
[0038] The rotating shell 33 is rotatably connected to the lower end face of the first mounting plate 1 and the upper end face of the second mounting plate 4 respectively. The rotating block 34 is rotatably connected to the inner wall of the rotating shell 33, which can flexibly change the angle of the adjustment component 3 and work in conjunction with the mounting component 2. The second sleeve 31 is slidably connected to the connecting rod 32, which can assist in adjusting the length and position of the device. The second spring 37 is connected to the inner wall of the second sleeve 31 and the top of the connecting rod 32, providing buffer force and auxiliary elastic force during adjustment, making the adjustment more stable, and fine-tuning the elastic force of the device. At this point, the entire working process is completed.
[0039] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0042] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. A special small spring fastening device with adjustable elastic force, comprising a first mounting plate (1) and a second mounting plate (4), characterized in that: An installation component (2) and an adjustment component (3) are respectively provided between the first mounting plate (1) and the second mounting plate (4); The mounting assembly (2) includes a rotating frame (21), a rotating plate (22), a first sleeve (23), a telescopic sleeve (24), a first spring (25), a threaded rod (26), and a pulling block (27). The side of the rotating frame (21) is rotatably connected to the inner wall of the first mounting plate (1), and the side of the rotating plate (22) is rotatably connected to the inner wall of the rotating frame (21). The second mounting plate (4) has the same structure as the first mounting plate (1). The top of the telescopic sleeve (24) is connected to the lower end face of the rotating plate (22) in the first mounting plate (1), and the bottom of the first sleeve (23) is connected to the upper end face of the rotating plate (22) in the second mounting plate (4). The surface of the telescopic sleeve (24) is slidably connected to the inner wall of the first sleeve (23). The inner wall of the pulling block (27) is threadedly connected to the surface of the threaded rod (26). The first spring (25) is sleeved on the surfaces of the first sleeve (23) and the telescopic sleeve (24). The adjustment assembly (3) includes a second sleeve (31), a connecting rod (32), a rotating shell (33), a rotating block (34), and a second spring (37). The lower end face of the first mounting plate (1) and the upper end face of the second mounting plate (4) are rotatably connected to the side of the rotating shell (33). The inner wall of the rotating shell (33) is rotatably connected to the side of the rotating block (34). The top end of the second sleeve (31) is connected to the lower end face of the rotating block (34) inside the first mounting plate (1). The bottom end of the connecting rod (32) is connected to the upper end face of the rotating block (34) inside the second mounting plate (4). The surface of the connecting rod (32) is slidably connected to the inner wall of the second sleeve (31).
2. The special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The top end of the first spring (25) is connected to the lower end face of the rotating plate (22) inside the first mounting plate (1), and the bottom end of the first spring (25) is connected to the upper end face of the rotating plate (22) inside the second mounting plate (4).
3. The special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The inner wall of the second sleeve (31) is connected to a second spring (37), and the bottom end of the second spring (37) is connected to the top end of the connecting rod (32).
4. A special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The side of the pull block (27) is slidably connected to the inner wall of the telescopic sleeve (24), and the shape of the side of the pull block (27) matches the shape of the inner wall of the telescopic sleeve (24).
5. A special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The rotating shell (33) has a second limiting strip (36) connected to its side, and the side of the second limiting strip (36) is slidably connected to the inner wall of the first mounting plate (1).
6. A special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The side of the rotating block (34) is connected to a first limiting strip (35), and the side of the first limiting strip (35) is slidably connected to the inner wall of the rotating shell (33).
7. A special small spring fastening device with adjustable elasticity according to claim 1, characterized in that: The surface of the threaded rod (26) is rotatably connected to the upper end face of the inner rotating plate (22) of the second mounting plate (4), and the bottom end of the threaded rod (26) is connected to a nut through the lower end face of the inner rotating plate (22) of the second mounting plate (4).