Pre-pressing device for square spring
By setting spring end covers, sleeves and inserting rods at both ends of the square spring, and using limiting devices and bolts to control the stroke, the problem of the spring prepression value cannot be adjusted, and flexible adjustment of the spring pretension degree is achieved.
Patent Information
- Application Number
- CN202422144671.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The prepressure value of the existing spring is fixed and cannot be adjusted according to user needs.
A pre-pressing device for square spring is designed, and the degree of pre-tension is adjusted by setting a spring end cover, a sleeve and a plug rod at both ends of the spring, and controlling the stroke of the sleeve and plug rod through a limiting device and bolt.
The pretension degree of the spring is adjusted according to the needs, and the structure is simple and easy to adjust.
Smart Images
Figure CN223056626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of preloading devices for square springs, in particular to a preloading device for square springs. Background Technique
[0002] Springs with different preloading degrees are required in different occasions, but the preloading values of the springs when leaving the factory are all limited, and there is no structure for later adjustment, which is not conducive to users' adjustment according to their needs. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a preloading device for square springs is provided, which solves the above problems.
[0004] The utility model solves its technical problems by adopting the following technical solutions:
[0005] A preloading device for square springs includes a square spring. Spring end caps are fixedly sleeved at both ends of the square spring. A sleeve is fixedly arranged inside one of the spring end caps, and a plug rod is fixedly arranged inside the other spring end cap. The plug rod is slidably inserted into the sleeve, and a limiting device is further arranged between the sleeve and the plug rod.
[0006] Preferably, through holes for preloading limit are arranged at intervals on the plug rod.
[0007] Preferably, a through stroke groove is arranged on the sleeve.
[0008] Preferably, a bolt is arranged through the stroke groove on the sleeve and the through holes for preloading limit on the plug rod, which is used to limit the maximum stroke of the sleeve and the plug rod, thereby controlling the pre-tightening degree of the square spring.
[0009] Preferably, a bolt is arranged through the through holes for preloading limit, and the other end of the bolt is threadedly connected with a nut.
[0010] Preferably, ear-shaped holes for fixing the end cap are annularly arranged at intervals on the side of the spring end cap.
[0011] The advantages and positive effects of the utility model are: by adjusting the initial tightness of the square spring through the plug rod and the sleeve arranged in the middle of the spring end cap, springs with different pre-tightening degrees can be provided according to requirements, and the structure is simple and the adjustment is convenient. Description of the Drawings
[0012] The following further describes the utility model in conjunction with the drawings and embodiments.
[0013] Figure 1 It is a schematic structural diagram of the utility model;
[0014] Figure 2 It is a schematic structural diagram of the present utility model. Specific embodiments
[0015] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.
[0016] The following will further elaborate on the embodiments of the present utility model with reference to the accompanying drawings:
[0017] As Figure 1-2 shown, a preloading device for a square spring of the present utility model includes a square spring 11. Spring end caps 10 are fixedly sleeved at both ends of the square spring 11. A sleeve 12 is fixedly arranged inside one of the spring end caps 10, and a plug rod 18 is fixedly arranged inside the other spring end cap 10. The plug rod 18 is slidably inserted into the sleeve 12, and a limiting device is further provided between the sleeve 12 and the plug rod 18.
[0018] Preferably, through holes of preloading limit holes 13 are spaced apart on the plug rod 18.
[0019] Preferably, a through stroke groove 14 is provided on the sleeve 12.
[0020] Preferably, a bolt passes through the stroke groove 14 on the sleeve 12 and the preloading limit holes 13 on the plug rod 18, which is used to limit the maximum stroke of the sleeve 12 and the plug rod 18, thereby controlling the preloading degree of the square spring 11.
[0021] Preferably, a bolt 15 passes through the preloading limit holes 13, and the other end of the bolt 15 is threadedly connected to a nut 16.
[0022] Preferably, end cap fixing screw hole ears 17 are annularly spaced on the side of the spring end cap 10.
[0023] It should be emphasized that the embodiments described in the present utility model are illustrative rather than restrictive. Therefore, the present utility model is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present utility model also fall within the protection scope of the present utility model.
Claims
1. A preloading device for a square spring, characterized in that: It includes a square spring (11), and spring end caps (10) are fixedly sleeved at both ends of the square spring (11). A sleeve (12) is fixedly arranged inside one of the spring end caps (10), and a plug rod (18) is fixedly arranged inside the other spring end cap (10). The plug rod (18) is slidably inserted into the sleeve (12), and a limiting device is further arranged between the sleeve (12) and the plug rod (18).
2. The preloading device for a square spring according to claim 1, wherein: Through holes of preloading limit holes (13) are arranged at intervals on the plug rod (18).
3. The preloading device for a square spring according to claim 2, characterized in that: A through stroke groove (14) is arranged on the sleeve (12).
4. The preloading device for a square spring according to claim 3, characterized in that: A bolt is arranged through the stroke groove (14) on the sleeve (12) and the preloading limit holes (13) on the plug rod (18), and it is used to limit the maximum stroke of the sleeve (12) and the plug rod (18), thereby controlling the pre-tightening degree of the square spring (11).
5. The preloading device for a square spring according to claim 4, characterized in that: A bolt (15) is arranged through the preloading limit holes (13), and the other end of the bolt (15) is in threaded connection with a nut (16).
6. The preloading device for a square spring according to claim 5, characterized in that: End cap fixing screw hole ears (17) are annularly arranged at intervals on the side of the spring end cap (10).