A torsion spring press-fitting mechanism with a rotating shaft and a press rod linkage
By using a rotating shaft and pressure rod linkage structure, and utilizing cotter pins and ejector pins to achieve radial constraint on the torsion spring, the problems of uneven torsion spring installation and low efficiency are solved, resulting in a highly efficient and reliable torsion spring press-fitting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGLIDA PRECISION COMPONENTS (ZHONGSHAN) CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-06-26
Smart Images

Figure CN224406888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of torsion spring pressing mechanism, and in particular to a torsion spring pressing mechanism with a rotating shaft and pressing rod linkage. Background Technology
[0002] A torsion spring is a helical spring that generates elastic force through rotation or torsion, used to store and release rotational energy. Its ends typically have curved "torsion arms" that can hook or secure it to other components. Commonly found in hinges, clips, and automotive parts, it provides restoring force or retains pressure. Its characteristic is that it rotates and deforms under stress and returns to its original shape when released, making it suitable for mechanical structures requiring rotational elasticity.
[0003] To achieve the one-click opening function of the product, the torsion spring needs to be pre-tightened. The current installation method is to install the torsion spring manually, which is prone to human inexperience, resulting in repeated adjustments to the angle and pressure of the torsion spring, which takes a long time. In addition, it is difficult to ensure uniform pressing force when manually applying force, which can easily lead to deformation of the torsion spring or incomplete closure, affecting the product yield. Manual operation is also difficult to quickly adapt to different specifications of torsion springs, resulting in low efficiency.
[0004] Therefore, those skilled in the art have provided a torsion spring pressing mechanism with a rotating shaft and pressure rod linkage to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a torsion spring pressing mechanism with a rotating shaft and a push rod linkage. This mechanism employs a rotating shaft body and a push rod linkage structure, fixing the end of the torsion spring body to the groove of the cup lid rotating shaft body. Radial constraint is achieved through cotter pins and ejector pins, and the torque is set by adjusting screws to ensure elastic matching with the cup lid. The push rod and rotating shaft body structure are used to press the torsion spring body in, preventing installation misalignment and improving production efficiency. This structure features a stable and reliable connection, long service life, convenient manufacturing, installation, and operation.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A torsion spring pressing mechanism with a rotating shaft and a pressure rod linkage includes a fixed block, a rotating frame, a thrust pressure rod, and a rotating shaft body. Both ends of the rotating frame are threadedly connected to the linkage pressing mechanism. Both ends of the fixed block are provided with the linkage pressing mechanism. The linkage pressing mechanism includes two adjusting screws. One end of the outer wall of the adjusting screw has a movable groove. One end of the outer wall of the adjusting screw is slidably connected to a cotter pin. A pin is sleeved in the middle of the outer wall of the cotter pin. Both ends of one side face of the fixed block have sliding grooves. The middle of the outer wall of each sliding groove is provided with a torsion spring body. One end of the outer wall of the sliding groove is slidably connected to a telescopic pin.
[0008] Through the above technical solution, the mechanism adopts a linkage structure of rotating shaft body and thrust rod, fixing the end of the torsion spring body to the groove of the cup lid rotating shaft body, achieving radial constraint through cotter pin and ejector pin, adjusting screw to set torque to ensure elastic matching of cup lid, and using the thrust rod and rotating shaft body structure to press the torsion spring body in, preventing installation misalignment and improving production efficiency. This structure has a stable and reliable connection, long service life, convenient processing and manufacturing, and convenient installation and operation.
[0009] Furthermore, the two ends of the fixing block are threadedly connected to the rotating shaft body, and the two sides of one end of the rotating frame are hinged with thrust rods;
[0010] The above technical solution pushes the rotating frame to rotate around the rotating shaft when pressed down, converting linear motion into radial pressing force of the torsion spring body.
[0011] Furthermore, both ends of the rotating shaft body are connected to the fixing block using flat-end set screws;
[0012] With the above technical solution, both ends are fixed to the fixing block by flat-end set screws to ensure axial positioning.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model proposes a torsion spring pressing mechanism with a rotating shaft and a push rod linkage. The mechanism adopts a rotating shaft body and a push rod linkage structure. The end of the torsion spring body is fixed to the groove of the cup lid rotating shaft body. Radial constraint is achieved by cotter pins and ejector pins. The torque is set by adjusting screws to ensure elastic matching with the cup lid. The torsion spring body is pressed in by the push rod and rotating shaft body structure to prevent installation misalignment and improve production efficiency. This structure has a stable and reliable connection, long service life, convenient processing and manufacturing, and convenient installation and operation. Attached Figure Description
[0015] Figure 1 This is an isometric view of a torsion spring press-fitting mechanism with a rotating shaft and pressure rod linkage proposed in this utility model.
[0016] Figure 2 This is a second-view isometric view of a torsion spring press-fitting mechanism with a rotating shaft and pressure rod linkage proposed in this utility model.
[0017] Figure 3 This is a cross-sectional view of a torsion spring press-fitting mechanism with a rotating shaft and pressure rod linkage proposed in this utility model.
[0018] Figure 4 Exploded view of the linkage pressing mechanism of the torsion spring pressing mechanism of the rotating shaft pressing rod linkage proposed in this utility model;
[0019] Figure 5This is a cross-sectional view of the fixing block of a torsion spring pressing mechanism with a rotating shaft and pressure rod linkage proposed in this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Fixed block; 2. Rotating frame; 3. Thrust rod; 4. Linkage pressing mechanism; 41. Adjusting screw; 42. Movable groove; 43. Cotter pin; 44. Ejector pin; 45. Slide groove; 46. Torsion spring body; 47. Telescopic pin; 5. Rotating shaft body. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Reference Figure 1-3 This utility model provides a specific implementation method:
[0024] A torsion spring pressing mechanism with a rotating shaft and pressure rod linkage includes a fixed block 1, a rotating frame 2, a thrust pressure rod 3, and a rotating shaft body 5. Both ends of the rotating frame 2 are threadedly connected to a linkage pressing mechanism 4. The fixed block 1 has linkage pressing mechanisms 4 at both ends. Each linkage pressing mechanism 4 includes two adjusting screws 41. One end of the outer wall of each adjusting screw 41 has a movable groove 42, and one end of the outer wall of each adjusting screw 41 is slidably connected to a cotter pin 43. A pin 44 is fitted onto the middle of the outer wall of the cotter pin 43. Both ends of one side face of the fixed block 1 have sliding grooves 45, and the middle of the outer wall of the sliding groove 45... Each part is equipped with a torsion spring body 46, and one end of the outer wall of the slide groove 45 is slidably connected to a telescopic pin 47. The mechanism adopts a linkage structure of the rotating shaft body 5 and the thrust rod 3. The end of the torsion spring body 46 is fixed to the groove of the cup lid rotating shaft body 5. Radial constraint is achieved by the cotter pin 43 and the ejector pin 44. The torque is set by the adjusting screw 41 to ensure elastic matching with the cup lid. The structure of the thrust rod 3 and the rotating shaft body 5 is used to press the torsion spring body 46 in to prevent installation misalignment and improve production efficiency. This structure has a stable and reliable connection, long service life, convenient processing and manufacturing, and convenient installation and operation.
[0025] Reference Figure 3-5 The two ends of the fixed block 1 are threadedly connected to the rotating shaft body 5, and the two sides of one end of the rotating frame 2 are hinged with the thrust rod 3. When pressed down, the rotating frame 2 is pushed to rotate around the rotating shaft body 5, converting the linear motion into the radial pressing force of the torsion spring body 46.
[0026] Both ends of the rotating shaft body 5 are connected to the fixing block 1 using flat-end set screws, and both ends are fixed to the fixing block 1 by flat-end set screws to ensure axial positioning.
[0027] Working principle: The mechanism adopts a linkage structure of rotating shaft body 5 and thrust rod 3. The end of torsion spring body 46 is fixed to the groove of cup lid rotating shaft body 5. Radial constraint is achieved by cotter pin 43 and ejector pin 44. Adjusting screw 41 sets the torque to ensure elastic matching of cup lid. The structure of thrust rod 3 and rotating shaft body 5 is used to press torsion spring body 46 in to prevent installation misalignment.
[0028] The following points should be noted in this article:
[0029] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0030] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A torsion spring pressing mechanism with a rotating shaft and pressure rod linkage, comprising a fixed block (1), a rotating frame (2), a thrust pressure rod (3), and a rotating shaft body (5), characterized in that: Both ends of the rotating frame (2) are threadedly connected to a linkage pressing mechanism (4). Both ends of the fixed block (1) are provided with a linkage pressing mechanism (4). The linkage pressing mechanism (4) includes two adjusting screws (41). One end of the outer wall of the adjusting screw (41) is provided with a movable groove (42). One end of the outer wall of the adjusting screw (41) is slidably connected with a cotter pin (43). A pin (44) is sleeved in the middle of the outer wall of the cotter pin (43). Both ends of one side end face of the fixed block (1) are provided with a sliding groove (45). A torsion spring body (46) is provided in the middle of the outer wall of the sliding groove (45). One end of the outer wall of the sliding groove (45) is slidably connected with a telescopic pin (47).
2. The torsion spring pressing mechanism with rotating shaft and pressure rod linkage according to claim 1, characterized in that: The two ends of the fixed block (1) are threadedly connected to the rotating shaft body (5), and the two sides of one end of the rotating frame (2) are hinged with thrust rods (3).
3. The torsion spring pressing mechanism with rotating shaft and pressure rod linkage according to claim 1, characterized in that: Both ends of the rotating shaft body (5) are connected to the fixing block (1) using flat-end set screws.