Guide frame structure of plate spring
By introducing components such as support plates and guide frames into the leaf spring guide frame, and utilizing a combination of dampers and guide force rockers, the problems of leaf spring guide frame offset and collision are solved, thereby improving the service life of the leaf spring and the stability of the device.
Patent Information
- Application Number
- CN202520827250.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-28
AI Technical Summary
The existing guide frame structure of leaf springs is prone to displacement, twisting, and interference and collision with other components during use, which affects service life and device stability.
The leaf spring damping guide assembly, which consists of a support plate, guide frame, limit block, fixed rod, movable guide slider, damper, and guide force rocker, absorbs vibration energy through the damper and guides the movement through the guide force rocker, ensuring that the leaf spring body moves only in the vertical direction and avoiding vibration in the front-to-back direction.
It effectively improves the service life of leaf springs and the stability of the device, and reduces vibration amplitude through dampers to achieve good shock absorption and guidance effects.
Smart Images

Figure CN223894840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leaf spring technology, and in particular to a guide frame structure for leaf springs. Background Technology
[0002] Leaf springs play a crucial role in many mechanical devices for cushioning, shock absorption, and support, such as automotive suspension systems and vibration damping devices in industrial equipment. However, during the operation of leaf springs, due to their deformation characteristics under stress, without a suitable guide frame structure, problems such as leaf spring misalignment, twisting, or even interference and collision with other components can easily occur. This not only reduces the service life of the leaf springs but may also affect the stability and safety of the entire device.
[0003] When in use, the existing guide frame can only limit the damping path of the leaf spring. However, during the damping guidance process, deviation or collision may easily occur, which may cause damage to the leaf spring. Therefore, we propose a guide frame structure for leaf springs. Utility Model Content
[0004] In view of this, this application provides a guide frame structure for a leaf spring, which solves the above technical problems to a certain extent.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A guide frame structure for a leaf spring includes a support plate, a leaf spring body is disposed on the top of the support plate, guide frames are fixedly installed on the left and right sides of the top of the support plate, and a leaf spring shock-absorbing guide assembly is disposed above the support plate and the guide frames.
[0007] The leaf spring damping guide assembly includes a limiting block, a fixed rod, a spring, and a movable guide slider. The limiting block is fixedly installed in the middle of the bottom inner wall of the guide frame. The fixed rod is fixedly installed on the inner side of the limiting block. The spring is fixedly installed on the inner walls of the front and rear sides of the guide frame. The movable guide slider is slidably installed on the outer side of the fixed rod. One end of the spring is fixedly installed on one side of the movable guide slider.
[0008] Preferably, a mounting bracket is fixedly installed on the top of the support plate, and threaded holes are provided at the four corners of the top of the mounting bracket. A leaf spring connecting assembly is provided above the leaf spring shock absorption guide assembly and the leaf spring body.
[0009] Preferably, the leaf spring damping guide assembly further includes a damper, a connecting frame, and a guide rocker arm. The damper is fixedly installed at the top four corners of the support plate, the connecting frame is fixedly installed on the top of the damper, and the guide rocker arm is rotatably installed on the front and rear sides of one side of the connecting frame. One end of the guide rocker arm is rotatably installed on the inner side of the movable guide slider.
[0010] By adopting the above technical solution, after the connecting frame is subjected to force, the force can be transmitted to the force-bearing rocker. The force-bearing rocker can slide above the fixed rod through the movable guide slider below, which allows the connecting frame to have a buffer space for movement. The damper absorbs and dissipates vibration energy, and the damper can significantly reduce the vibration amplitude of the structure, thereby achieving a good vibration reduction and guidance effect of the device.
[0011] Preferably, the leaf spring connecting assembly includes a first connecting lug, a connecting rod, and a second connecting lug. The first connecting lug is fixedly installed on one side of the connecting frame, the connecting rod is rotatably installed on the inner side of the first connecting lug, the second connecting lug is rotatably installed on the outer side of one end of the connecting rod, and the second connecting lug is fixedly installed on the left and right sides of the leaf spring body.
[0012] By adopting the above technical solution, after the leaf spring body vibrates under force, the cooperation of the first connecting lug, the connecting rod and the second connecting lug can transmit the vibration force above the leaf spring body to the top of the connecting frame. Since the damper below and the guide rocker arms on both sides can guide the connecting frame, the two ends of the leaf spring body can follow the connecting frame after being subjected to force. This ensures that the leaf spring body can only move up and down during vibration, without any back-and-forth shaking or collision. This can effectively improve the service life of the leaf spring body and enhance the stability of the device.
[0013] Preferably, the leaf spring body is C-shaped, and leaf spring connecting blocks are fixedly installed on the top and left and right sides of the leaf spring body.
[0014] Preferably, a through groove is provided at the connection between the connecting rod and the first connecting lug and the second connecting lug, and a fixing pin is provided on the inner side of the through groove.
[0015] Preferably, a groove is provided on one side of the movable guide slider, the fixed rod is in contact with the groove, and a rotating groove is provided on the top of the movable guide slider, the rotating groove being in contact with the guide force rocker.
[0016] Preferably, a mounting groove is provided at the connection between the guide rocker arm and the connecting frame and the movable guide slider, and a fixing pin is provided on the inner side of the mounting groove.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] (1) The guide frame structure of the leaf spring of this utility model, through the leaf spring damping guide component, can transmit the force to the guide rocker after the connecting frame is subjected to force. The guide rocker can slide above the fixed rod through the movable guide slider below, so that the connecting frame has a buffer space for movement. The damper absorbs and dissipates vibration energy. The damper can significantly reduce the vibration amplitude of the structure, thereby achieving a good damping and guiding effect of the device.
[0019] (2) The guide frame structure of the leaf spring of this utility model, through the leaf spring connecting assembly, after the leaf spring body vibrates under force, the cooperation of the first connecting lug, the connecting rod and the second connecting lug can transmit the vibration force above the leaf spring body to the top of the connecting frame. Since the damper below and the guide force rocker on both sides can guide the connecting frame, the two ends of the leaf spring body can follow the connecting frame after being subjected to force. The leaf spring body can only move up and down during vibration, and there will be no back-and-forth shaking or collision. This can effectively improve the service life of the leaf spring body and improve the stability of the device.
[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of a guide frame structure for a leaf spring proposed in this utility model;
[0022] Figure 2 A schematic diagram of the exploded portion structure of a guide frame structure for a leaf spring according to an embodiment of this application is shown;
[0023] Figure 3 A schematic diagram of the exploded portion structure of a guide frame structure for a leaf spring according to an embodiment of this application is shown;
[0024] Figure 4 for Figure 3 A magnified structural diagram of A in the middle.
[0025] Figure label:
[0026] 1. Leaf spring damping guide assembly; 2. Leaf spring connecting assembly; 3. Support plate; 4. Leaf spring body; 5. Mounting bracket; 6. Threaded hole; 7. Guide frame;
[0027] 11. Limiting block; 12. Fixing rod; 13. Spring; 14. Moving guide slider; 15. Damper; 16. Connecting frame; 17. Guide force rocker arm;
[0028] 21. First connecting lug; 22. Connecting rod; 23. Second connecting lug; 24. Leaf spring connecting block. Detailed Implementation
[0029] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;
[0030] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0031] refer to Figure 1-4 A guide frame structure for a leaf spring includes a support plate 3, a leaf spring body 4 is provided on the top of the support plate 3, guide frames 7 are fixedly installed on the left and right sides of the top of the support plate 3, and a leaf spring shock absorption guide assembly 1 is provided above the support plate 3 and the guide frames 7.
[0032] The leaf spring damping guide assembly 1 includes a limiting block 11, a fixing rod 12, a spring 13, and a movable guide slider 14. The limiting block 11 is fixedly installed in the middle of the bottom inner wall of the guide frame 7. The fixing rod 12 is fixedly installed on the inner side of the limiting block 11. The spring 13 is fixedly installed on the inner walls of the front and rear sides of the guide frame 7. The movable guide slider 14 is slidably installed on the outer side of the fixing rod 12. One end of the spring 13 is fixedly installed on one side of the movable guide slider 14.
[0033] In this embodiment, a mounting bracket 5 is fixedly installed on the top of the support plate 3, and threaded holes 6 are opened at the four corners of the top of the mounting bracket 5. A leaf spring connecting assembly 2 is provided above the leaf spring shock absorption guide assembly 1 and the leaf spring body 4.
[0034] In this embodiment, the leaf spring damping guide assembly 1 further includes a damper 15, a connecting frame 16, and a guide force rocker 17. The damper 15 is fixedly installed at the top four corners of the support plate 3, the connecting frame 16 is fixedly installed on the top of the damper 15, and the guide force rocker 17 is rotatably installed on the front and rear sides of one side of the connecting frame 16. One end of the guide force rocker 17 is rotatably installed on the inner side of the movable guide slider 14.
[0035] In this embodiment, the leaf spring connecting assembly 2 includes a first connecting lug 21, a connecting rod 22, and a second connecting lug 23. The first connecting lug 21 is fixedly installed on one side of the connecting frame 16, the connecting rod 22 is rotatably installed on the inner side of the first connecting lug 21, the second connecting lug 23 is rotatably installed on the outer side of one end of the connecting rod 22, and the second connecting lug 23 is fixedly installed on the left and right sides of the leaf spring body 4.
[0036] In this embodiment, the leaf spring body 4 is C-shaped, and leaf spring connecting blocks 24 are fixedly installed on the top and left and right sides of the leaf spring body 4. The device that needs to absorb vibration is connected and fixed to the leaf spring through the leaf spring connecting blocks 24. After the leaf spring body 4 vibrates under force, the cooperation of the first connecting lug 21, the connecting rod 22 and the second connecting lug 23 can transmit the vibration force above the leaf spring body 4 to the top of the connecting frame 16.
[0037] In this embodiment, a through groove is provided at the connection between the connecting rod 22 and the first connecting lug 21 and the second connecting lug 23, and a fixing pin is provided on the inner side of the through groove; the fixing pin can make the connection between the connecting rod 22 and the first connecting lug 21 and the second connecting lug 23 relatively tight, so that the leaf spring body 4 can transmit the vibration force to the top of the connecting frame 16 through the connecting rod 22 after being subjected to force.
[0038] In this embodiment, a groove is provided on one side of the movable guide slider 14, and the fixed rod 12 is in contact with the groove. A rotating groove is provided on the top of the movable guide slider 14, and the rotating groove is in contact with the guide force rocker 17. The rotating groove facilitates the movement of the guide force rocker 17 after being subjected to force. The fixed rod 12 can limit the movable guide slider 14. After the movable guide slider 14 moves, it can drive the connecting frame 16 to buffer, so that the connecting frame 16 has a certain buffer distance.
[0039] In this embodiment, an installation groove is provided at the connection between the guide rocker arm 17, the connecting frame 16, and the movable guide slider 14, and a fixing pin is provided on the inner side of the installation groove; the fixing pin can make the connection between the guide rocker arm 17 and the connecting frame 16 and the guide rocker arm 17 relatively tight, so that the guide rocker arm 17 is not prone to displacement and damage during the process of changing the angle.
[0040] The specific operation is as follows: the leaf spring body 4 is placed on top of the support plate 3, and the spring mounting bracket 5 is used to install and fix the leaf spring body 4. The device requiring vibration damping is connected and fixed to the leaf spring through the leaf spring connecting block 24. After the leaf spring body 4 vibrates under force, the cooperation of the first connecting lug 21, the connecting rod 22, and the second connecting lug 23 can transmit the vibration force above the leaf spring body 4 to the top of the connecting bracket 16. Since the damper 15 below and the guide rocker arms 17 on both sides can guide the connecting bracket 16, the two ends of the leaf spring body 4 can follow the connecting bracket 16 after being subjected to force. The movement allows the leaf spring body 4 to move only up and down during vibration, preventing back-and-forth shaking and collisions. This effectively extends the service life of the leaf spring body 4 and improves the stability of the device. When the connecting frame 16 is subjected to force, the force can be transmitted to the force-bearing rocker 17. The force-bearing rocker 17 can slide above the fixed rod 12 via the lower movable guide slider 14, providing the connecting frame 16 with a buffer space for movement. Meanwhile, the damper 15 absorbs and dissipates vibration energy, significantly reducing the vibration amplitude of the structure, thus achieving a good vibration reduction and guidance effect for the device.
[0041] 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.
[0042] 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 guide frame structure for a leaf spring, characterized in that, include: Support plate (3), the top of the support plate (3) is provided with a leaf spring body (4), the top left and right sides of the support plate (3) are fixedly installed with guide frames (7), and the support plate (3) and the guide frames (7) are provided with a leaf spring shock absorption guide assembly (1). The leaf spring damping guide assembly (1) includes a limiting block (11), a fixing rod (12), a spring (13), and a movable guide slider (14). The limiting block (11) is fixedly installed in the middle of the bottom inner wall of the guide frame (7). The fixing rod (12) is fixedly installed on the inner side of the limiting block (11). The spring (13) is fixedly installed on the inner walls of the front and rear sides of the guide frame (7). The movable guide slider (14) is slidably installed on the outer side of the fixing rod (12). One end of the spring (13) is fixedly installed on one side of the movable guide slider (14).
2. The guide frame structure for a leaf spring according to claim 1, characterized in that, A mounting bracket (5) is fixedly installed on the top of the support plate (3). Threaded holes (6) are opened at the four corners of the top of the mounting bracket (5). A leaf spring connecting assembly (2) is provided above the leaf spring shock absorption guide assembly (1) and the leaf spring body (4).
3. The guide frame structure for a leaf spring according to claim 1, characterized in that, The leaf spring damping guide assembly (1) also includes a damper (15), a connecting frame (16), and a guide force rocker (17). The damper (15) is fixedly installed at the top four corners of the support plate (3). The connecting frame (16) is fixedly installed on the top of the damper (15). The guide force rocker (17) is rotatably installed on the front and rear sides of one side of the connecting frame (16). One end of the guide force rocker (17) is rotatably installed on the inner side of the movable guide slider (14).
4. The guide frame structure for a leaf spring according to claim 2, characterized in that, The leaf spring connecting assembly (2) includes a first connecting lug (21), a connecting rod (22), and a second connecting lug (23). The first connecting lug (21) is fixedly installed on one side of the connecting frame (16). The connecting rod (22) is rotatably installed on the inner side of the first connecting lug (21). The second connecting lug (23) is rotatably installed on the outer side of one end of the connecting rod (22). The second connecting lug (23) is fixedly installed on the left and right sides of the leaf spring body (4).
5. The guide frame structure for a leaf spring according to claim 1, characterized in that, The leaf spring body (4) is C-shaped, and leaf spring connecting blocks (24) are fixedly installed on the top left and right sides of the leaf spring body (4).
6. The guide frame structure for a leaf spring according to claim 4, characterized in that, A through groove is provided at the connection point between the connecting rod (22) and the first connecting lug (21) and the second connecting lug (23), and a fixing pin is provided on the inner side of the through groove.
7. The guide frame structure for a leaf spring according to claim 1, characterized in that, A groove is provided on one side of the movable guide slider (14), and the fixed rod (12) is in contact with the groove. A rotating groove is provided on the top of the movable guide slider (14), and the rotating groove is in contact with the guide force rocker (17).
8. The guide frame structure for a leaf spring according to claim 3, characterized in that, The guide rocker arm (17) is provided with an installation groove at the connection between the connecting frame (16) and the movable guide slider (14), and a fixing pin is provided on the inner side of the installation groove.