Automatic reset plate spring pre-pressing support seat

CN224315418UActive Publication Date: 2026-06-02STRICT INTELLIGENT TECHNOLOGY HUBEI CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
STRICT INTELLIGENT TECHNOLOGY HUBEI CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing automatic reset leaf spring preload support is difficult to automatically rebound and the connection is not tight enough, which leads to cumbersome operation and increased safety hazards.

Method used

The design incorporates spring-loaded and fixed components, including a slider, slide rail, spring, damper, and bolt structure, ensuring a tight fit between the slider and slide rail. Threaded connections enhance stability, while auxiliary wheels reduce friction, enabling automatic reset and stable connection.

Benefits of technology

It achieves automatic reset of the leaf spring, enhances the connection stability between the support base and the external structure, reduces operational complexity and safety hazards, and improves work efficiency and service life.

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Abstract

This utility model relates to the field of support base technology and discloses an automatic reset leaf spring preload support base, including a base, a connecting seat fixedly connected to the top of the base, a slide rail fixedly connected to the surface of the connecting seat, and two sliders slidably connected to the surface of the slide rail. This automatic reset leaf spring preload support base, through the setting of the spring-loaded component, firstly, the operator places the leaf spring between the support plates on the surfaces of the two sliders. When the leaf spring is subjected to external force, it will drive the two sliders to move outward along the slide rail. When the sliders move, the connecting plate on one side will move accordingly, thereby compressing the first spring and damper between the fixed plate and the connecting plate. When the external force disappears, the first spring will generate a reset force with its own elastic potential energy, pulling the connecting plate and sliders back to the initial position, achieving automatic reset; while the damper can effectively reduce the impact and vibration during the reset process, making the reset action more stable.
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Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to an automatic reset leaf spring preload support. Background Technology

[0002] The automatic reset leaf spring preload support is an elastic support component that integrates preload adjustment and automatic reset functions. It provides stable support force through preset leaf spring compression. When it deviates from the initial position due to external force, it can automatically return to its original position with the help of the elastic potential energy of the leaf spring. The structure includes a base, a preload adjustment component and a leaf spring unit. It can buffer vibration and limit displacement. It is widely used in mechanical, automotive and other scenarios that require dynamic support and reset, and has both load-bearing and self-correcting characteristics.

[0003] However, existing automatic reset leaf spring preload support seats have the following disadvantages:

[0004] (1) The existing leaf spring preload support seat is difficult to automatically rebound. After the leaf spring is subjected to external force, it may remain in the deformed position and thus it is difficult to return to the initial state on its own. Manual intervention is required to reset it, which increases the cumbersomeness of operation and reduces work efficiency. Especially in scenarios where frequent force is required, manual reset is difficult to meet the needs of continuous work.

[0005] (2) The existing leaf spring preload support may not be tightly connected to the external structure, and it is easy to loosen. Especially when the equipment is running and vibrates, this loosening will gradually intensify, causing the support to shift position, making it difficult to provide stable support for the leaf spring, affecting the normal operation of the leaf spring, and may even cause safety hazards.

[0006] Therefore, this utility model provides an automatic reset leaf spring preload support. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The problem solved by this utility model is to provide a highly practical automatic reset leaf spring preload support, which solves the problems mentioned in the background art, such as the difficulty in automatic rebound of some existing leaf spring preload support and the possibility that the connection between the existing leaf spring preload support and the external structure may not be tight enough.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic reset leaf spring preload support base, including a base, a connecting seat fixedly connected to the top of the base, a slide rail fixedly connected to the surface of the connecting seat, two sliders slidably connected to the surface of the slide rail, a spring-rebound component provided on one side of the slider, and a fixing component provided on the surface of the base.

[0011] The rebound assembly includes a connecting plate fixedly connected to one side of the slider, a fixing plate fixedly connected to the surface of the connecting seat, and a first spring and a damper connected together between the fixing plate and the connecting plate;

[0012] The fixing component includes a first bolt that is movably inserted into the four corner surfaces of the base, a second spring and a washer that are movably sleeved on the surface of the first bolt, and a nut that is fixedly connected to one end of the first bolt.

[0013] Optionally, the surfaces of the connecting seat and the fixing plate are provided with a first threaded hole, and a second bolt is inserted into the internal thread of the first threaded hole. A limit plate is movably sleeved on the surface of the second bolt. The second bolt can tightly connect the fixing plate and the connecting seat. With the help of the tightness of the threaded connection, the connection between the two is more precise, the relative displacement is reduced, the stability of the first spring and damper in the rebound assembly is ensured when they work, and the structural stability of the entire support seat is improved.

[0014] Optionally, the surface of the base is provided with a second threaded hole, which is adapted to the first bolt, ensuring that the connection of the first bolt on the base is more stable and reliable. The tight fit of the threads can effectively prevent the first bolt from loosening during the operation of the support, ensuring the fixing effect of the fixing component on the base, thereby enhancing the stability of the connection between the entire support and the external structure and reducing the safety hazards caused by loose connection.

[0015] Optionally, the surface of the slider is provided with a groove that matches the slide rail. The groove on the surface of the slider that matches the slide rail makes the fit between the slider and the slide rail tighter, preventing the slider from deviating or shaking during sliding. This not only ensures the smoothness of the slider's sliding but also improves the accuracy of the slider's movement, allowing the leaf spring to move stably along the slide rail through the slider when under force, reducing unnecessary friction and wear, and extending the service life of the slider and the slide rail.

[0016] Optionally, support plates are fixedly connected to the surfaces of both sliders, and a leaf spring is provided between the two support plates. The support plates on the surfaces of the two sliders provide stable support points for the leaf spring, allowing the leaf spring to be firmly installed between the two support plates. This structural design ensures that the leaf spring moves synchronously with the slider during operation, preventing displacement or detachment of the leaf spring, ensuring the uniformity and stability of the force on the leaf spring, and also facilitating the installation and replacement of the leaf spring, thus improving the maintenance convenience of the support base.

[0017] Optionally, auxiliary wheels are provided on both sides of the slider. The two auxiliary wheels are symmetrically arranged. The auxiliary wheels symmetrically arranged on both sides of the slider can play a role in auxiliary support and guidance when the slider slides along the slide rail. The rolling friction between the auxiliary wheels and the slide rail or other contact parts replaces part of the sliding friction, which greatly reduces the resistance when the slider slides, makes the slider move more flexibly and smoothly, reduces energy loss, and also reduces the wear of the slider and the slide rail, further improving the working efficiency and service life of the support base.

[0018] (III) Beneficial Effects

[0019] This utility model provides an automatic reset leaf spring preload support base, which has the following beneficial effects:

[0020] 1. This automatic reset leaf spring preload support, through the setting of the spring-loaded component, firstly, the operator places the leaf spring between the support plates on the surfaces of the two sliders. When the leaf spring is subjected to external force, it will drive the two sliders to move outward along the slide rail. When the sliders move, the connecting plate on one side will move accordingly, thereby compressing the first spring and damper between the fixed plate and the connecting plate. When the external force disappears, the first spring will generate a reset force by its own elastic potential energy, pulling the connecting plate and the slider back to the initial position, realizing automatic reset; while the damper can effectively reduce the impact and vibration during the reset process, making the reset action more stable.

[0021] 2. The automatic reset leaf spring preload support base, through the setting of the fixing components, firstly, the staff places the device in the designated position, then aligns the threaded holes at the four corners of the base with the corresponding positions of the connecting base, and then tightens the nut. The second spring will be compressed, and its elasticity will make the gasket fit tightly against the external structure, enhancing the firmness of the connection. At the same time, the second spring can also play a buffering role, reducing the impact of vibration on the connection part. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the base structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the connector structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the first spring structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the nut structure of this utility model.

[0026] In the diagram: 1. Base; 2. Connecting seat; 3. Slide rail; 4. Slider; 5. Rebound assembly; 51. Connecting plate; 52. Fixing plate; 53. First spring; 54. Damper; 6. Fixing assembly; 61. First bolt; 62. Second spring; 63. Washer; 64. Nut; 7. Second bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution: an automatic reset leaf spring preload support base, including a base 1, a connecting seat 2 fixedly connected to the top of the base 1, a slide rail 3 fixedly connected to the surface of the connecting seat 2, two sliders 4 slidably connected to the surface of the slide rail 3, a spring-loaded component 5 provided on one side of the slider 4, and a fixing component 6 provided on the surface of the base 1.

[0029] The rebound assembly 5 includes a connecting plate 51 fixedly connected to one side of the slider 4, a fixing plate 52 fixedly connected to the surface of the connecting seat 2, and a first spring 53 and a damper 54 connected together between the fixing plate 52 and the connecting plate 51.

[0030] The fixing component 6 includes a first bolt 61 that is movably inserted into the four corner surfaces of the base 1. A second spring 62 and a washer 63 are movably sleeved on the surface of the first bolt 61. A nut 64 is fixedly connected to one end of the first bolt 61.

[0031] The surfaces of the connecting seat 2 and the fixing plate 52 are provided with a first threaded hole. The second bolt 7 is inserted into the internal thread of the first threaded hole. The surface of the second bolt 7 is movably sleeved with a limit plate. The second bolt 7 can tightly connect the fixing plate 52 and the connecting seat 2. With the help of the tightness of the threaded connection, the connection between the two is more precise, reducing relative displacement and ensuring the stability of the first spring 53 and the damper 54 in the rebound assembly 5 when they are working, thereby improving the structural stability of the entire support seat.

[0032] The surface of the base 1 is provided with a second threaded hole, which is compatible with the first bolt 61, ensuring that the connection of the first bolt 61 on the base 1 is more stable and reliable. The tight fit of the threads can effectively prevent the first bolt 61 from loosening during the operation of the support, ensuring the fixing effect of the fixing component 6 on the base 1, thereby enhancing the stability of the connection between the entire support and the external structure and reducing the safety hazards caused by loose connection.

[0033] The surface of the slider 4 is provided with a groove that matches the slide rail 3. The groove on the surface of the slider 4 that matches the slide rail 3 makes the fit between the slider 4 and the slide rail 3 tighter, preventing the slider 4 from deviating or shaking during sliding. This not only ensures the smoothness of the slider 4 sliding, but also improves the accuracy of the slider 4's movement, allowing the leaf spring to move stably along the slide rail 3 through the slider 4 when under force, reducing unnecessary friction and wear, and extending the service life of the slider 4 and the slide rail 3.

[0034] Support plates are fixedly connected to the surfaces of the two sliders 4, and a leaf spring is set between the two support plates. The support plates on the surfaces of the two sliders 4 provide stable support points for the leaf spring, so that the leaf spring can be firmly installed between the two support plates. This structural design ensures that the leaf spring moves synchronously with the sliders 4 during operation, avoids displacement or falling off of the leaf spring, ensures the uniformity and stability of the force on the leaf spring, and also facilitates the installation and replacement of the leaf spring, improving the maintenance convenience of the support base.

[0035] Auxiliary wheels are provided on both sides of slider 4. The two auxiliary wheels are symmetrically arranged. The auxiliary wheels on both sides of slider 4 can play a role in auxiliary support and guidance when slider 4 slides along slide rail 3. The rolling friction between the auxiliary wheels and slide rail 3 or other contact parts replaces part of the sliding friction, which greatly reduces the resistance when slider 4 slides, making the movement of slider 4 more flexible and smooth, reducing energy loss, and also reducing the wear of slider 4 and slide rail 3, further improving the working efficiency and service life of support base.

[0036] In this invention, the working steps of the device are as follows:

[0037] First step: The worker first places the leaf spring between the support plates on the surfaces of the two sliders 4. When the leaf spring is subjected to external force, it will drive the two sliders 4 to move outward along the slide rail 3. When the sliders 4 move, the connecting plate 51 on one side will move accordingly, which will compress the first spring 53 and the damper 54 between the fixed plate 52 and the connecting plate 51. When the external force disappears, the first spring 53 will generate a restoring force by virtue of its own elastic potential energy, pulling the connecting plate 51 and the sliders 4 back to the initial position, realizing automatic reset; while the damper 54 can effectively reduce the impact and vibration during the reset process, making the reset action more stable.

[0038] The second step: The staff places the device in the designated position, then aligns the threaded holes at the four corners of the base 1 with the corresponding positions of the connecting base, and then tightens the nut 64. The second spring 62 will be compressed, and its elasticity will make the washer 63 fit tightly against the external structure, enhancing the firmness of the connection. At the same time, the second spring 62 can also play a buffering role, reducing the impact of vibration on the connection part.

[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] 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 automatic reset leaf spring preload support, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a connecting seat (2), the surface of the connecting seat (2) is fixedly connected to a slide rail (3), the surface of the slide rail (3) is slidably connected to two sliders (4), a spring-loaded component (5) is provided on one side of the slider (4), and a fixing component (6) is provided on the surface of the base (1). The rebound assembly (5) includes a connecting plate (51) fixedly connected to one side of the slider (4), a fixing plate (52) fixedly connected to the surface of the connecting seat (2), and a first spring (53) and a damper (54) connected together between the fixing plate (52) and the connecting plate (51). The fixing component (6) includes a first bolt (61) that is movably inserted into the four corner surfaces of the base (1). A second spring (62) and a washer (63) are movably sleeved on the surface of the first bolt (61). A nut (64) is fixedly connected to one end of the first bolt (61).

2. The automatic reset leaf spring preload support according to claim 1, characterized in that: The surfaces of the connecting seat (2) and the fixing plate (52) are provided with a first threaded hole, and a second bolt (7) is inserted into the internal thread of the first threaded hole. A limit plate is movably sleeved on the surface of the second bolt (7).

3. The automatic reset leaf spring preload support according to claim 1, characterized in that: The base (1) has a second threaded hole on its surface, which is compatible with the first bolt (61).

4. The automatic reset leaf spring preload support according to claim 1, characterized in that: The surface of the slider (4) is provided with a groove, which is adapted to the slide rail (3).

5. The automatic reset leaf spring preload support according to claim 1, characterized in that: Both sliders (4) are fixedly connected to support plates, and a leaf spring is provided between the two support plates.

6. The automatic reset leaf spring preload support according to claim 1, characterized in that: The slider (4) is provided with auxiliary wheels on both sides, and the two auxiliary wheels are arranged symmetrically.