A deformation-resistant spring device

Abstract

This utility model provides an anti-deformation spring device, belonging to the technical field of spring devices. It includes a protective device comprising a circular column, a base fixedly connected to the bottom of the column, a top cover on top of the column, a cylindrical plate fixedly connected to the top surface of the inner wall of a pressure plate, and a connecting seat fixedly connected to the bottom surface of the inner wall of the circular column. A spring A is fitted onto the circumferential surface of the connecting seat. This utility model allows the operator to pull a handle along a groove on the circumferential surface of the disc plate, causing the handle to slide along the groove. The movement of the handle is transmitted through a transmission wheel fixedly connected to one end, keeping the spring fixed. When the spring is compressed, vibration causes it to shift, leading to uneven load, lateral instability, or overall torsion, resulting in excessive wear, abnormal noise, or even permanent plastic deformation, shortening its service life.

Description

Technical Field

[0001] This utility model relates to the field of spring device technology, specifically to an anti-deformation spring device. Background Technology

[0002] The development of an anti-deformation spring device stems from the demand for precision and reliability in machinery following the Industrial Revolution. Early helical springs were prone to plastic deformation and fatigue failure under heavy loads and high-frequency conditions, which spurred innovations in spring materials, heat treatment, and structural design. With the rise of the automotive and aerospace industries, anti-deformation designs such as conical springs and composite springs emerged, and materials science and finite element analysis further optimized their mechanical properties and anti-relaxation capabilities.

[0003] A search revealed that Chinese patent publication number CN221838810U--- discloses a spring anti-deformation device, relating to the field of spring anti-deformation technology. The device includes an anti-deformation mechanism with a fixed mechanism movably connected to its top. The anti-deformation mechanism includes a first ring column, with a base fixedly connected to its bottom. A set of first holes is provided on the top of the base. In this invention, a first groove is formed on the inner wall of the first ring column under the action of the anti-deformation mechanism, and a first connecting block with a first slider is slidably connected inside the first ring column. When compressed, it can extend and retract freely, placing the spring body inside the first ring column. A second ring column is installed inside the spring body and slidably connected to a second connecting block. This protects the spring while preventing deformation under compressive force, resulting in lower maintenance costs and increased spring lifespan. However, the following drawbacks still exist:

[0004] (1) Although the spring anti-deformation device of the above patent number can achieve anti-deformation treatment, it is difficult to achieve the function of keeping the spring fixed when it is squeezed. When the spring is squeezed, it will be deflected due to vibration, which will cause the spring to be subjected to uneven load, lateral instability or overall torsion, resulting in excessive wear, abnormal noise or even permanent plastic deformation, and shortening the service life.

[0005] Furthermore, after the spring is clamped and fixed, external force collisions can cause the clamping device to loosen, resulting in the loss of the clamping effect, spring displacement, and ultimately device malfunction and shortened service life. Therefore, an anti-deformation spring device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an anti-deformation spring device to address the existing problem of springs shifting under stress.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] An anti-deformation spring device includes a protective device, the protective device including a circular column, a base fixedly connected to the bottom of the circular column, a top cover provided above the circular column, a pressure plate fixedly connected to the side of the top cover near the circular column, a cylindrical plate fixedly connected to the top surface of the inner wall of the pressure plate, a connecting seat fixedly connected to the bottom surface of the inner wall of the circular column, and a spring A sleeved on the circumferential surface of the connecting seat;

[0009] It also includes a clamping device for fixing spring A; a limiting device for fixing the clamping device; the clamping device includes a handle, and a pull rod rope passes through the inside of the handle and is slidably connected to the handle.

[0010] As a preferred technical solution of this utility model, the clamping device includes a disc plate, a handle slidably connected to the circumferential surface of the disc plate, a transmission wheel fixedly connected to one end of the handle, a fixed column passing through the inside of the transmission wheel and rotatably connected to the transmission wheel, a gear rotatably connected to the circumferential surface of the transmission wheel, a rotating rod slidably connected to the inside of the gear, a long rod hinged to the circumferential surface of the rotating rod, a guard plate fixedly connected to the end of the long rod away from the rotating rod, and a slider passing through the surface of the handle and fixedly connected to the handle.

[0011] As a preferred technical solution of this utility model, a groove is formed on the circumferential surface of the disc plate, a cavity is formed inside the disc plate, and multiple guide grooves are formed on the surface of the disc plate. One side of the handle is slidably connected to the groove formed on the circumferential surface of the disc plate. The bottom of the fixed column is fixedly connected to the surface of the disc plate. The gear rotates through a rotating plate, and the bottom of the rotating plate is fixedly connected to the surface of the disc plate. Multiple guide grooves are formed on the surface of the gear. The end of the rotating rod near the gear is slidably connected to the guide groove formed on the surface of the gear. There are several guard plates, which are evenly distributed on the circumferential surface of the disc plate. The slider is slidably connected to the groove formed on the circumferential surface of the disc plate. A cavity is formed inside the slider, and a through hole is formed on the surface of the slider.

[0012] As a preferred technical solution of this utility model, the limiting device further includes a locking plate, a spring B is fixedly connected to the bottom of the locking plate, folding plates are provided on both sides of the slider, and a slot is provided on the circumferential surface of the disc plate.

[0013] As a preferred technical solution of this utility model, the end of the spring B away from the card plate is fixedly connected to the surface of the internal cavity of the slider, and one end of the pull rod rope is fixedly connected to the side of the card plate near the spring B.

[0014] As a preferred technical solution of this utility model, the pull rod rope is slidably connected to the through hole provided on the surface of the slider, and the end of the folding plate away from the slider is fixedly connected to the groove opened on the circumferential surface of the disc plate.

[0015] As a preferred technical solution of this utility model, a disc plate is provided on the side of the connecting seat near the base, and a plurality of bolts are provided on the surfaces of the base and the top cover. A sliding groove is provided on the inner circumferential surface of the circular column, and a sliding plate is provided on the circumferential surface of the pressure plate near the circular column. The sliding plate on the circumferential surface of the circular column is slidably connected to the sliding groove on the inner circumferential surface of the pressure plate. A sliding plate is provided on the circumferential surface of the cylindrical plate near the connecting seat, and a sliding groove is provided on the inner circumferential surface of the connecting seat. The sliding plate on the circumferential surface of the cylindrical plate is slidably connected to the sliding groove on the inner circumferential surface of the connecting seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. With the handle set, the operator first pulls the handle into the groove opened on the circumference of the disc plate, so that the handle slides along the groove opened on the circumference of the disc plate. Then the movement of the handle is transmitted through the transmission wheel fixedly connected to one end, keeping the spring fixed. When the spring is compressed, the vibration will cause the spring to deviate, resulting in uneven load, lateral instability or overall torsion of the spring, causing excessive wear, abnormal noise or even permanent plastic deformation, and shortening the service life.

[0018] 2. Through the set pull rod rope, the pull rod rope connected to the handle is pulled synchronously, so that one end of the pull rod rope is fixedly connected to the clamping plate. Its movement overcomes the elastic force of spring B, thereby fixing the position of the slider and the entire handle, realizing the hard limit of the stroke of the clamping device. This solves the problem that after the spring is clamped and fixed, the clamping device may loosen due to external force collision, resulting in the loss of clamping effect, causing the spring to shift, and ultimately causing the device to fail and shorten its service life. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of an anti-deformation spring device provided by this utility model;

[0020] Figure 2 A three-dimensional structural diagram of the pressure plate and the cross-section of the circular column of the anti-deformation spring device provided by this utility model;

[0021] Figure 3 A three-dimensional structural diagram of the disc plate of an anti-deformation spring device provided by this utility model;

[0022] Figure 4A three-dimensional structural diagram of the transmission wheel and gear of an anti-deformation spring device provided by this utility model;

[0023] Figure 5 A three-dimensional structural diagram of the handle of an anti-deformation spring device provided by this utility model.

[0024] Figure 6 A three-dimensional structural diagram of the folding plate of an anti-deformation spring device provided by this utility model.

[0025] Figure 7 This utility model provides an anti-deformation spring device. Figure 6 Enlarged 3D structural diagram at point A

[0026] The diagram indicates: 1. Protective device; 101. Circular column; 102. Base; 103. Top cover; 104. Pressure plate; 105. Cylindrical plate; 106. Connecting seat; 107. Spring A; 2. Clamping device; 201. Handle; 202. Transmission wheel; 203. Fixed column; 204. Gear; 205. Rotating rod; 206. Long rod; 207. Guard plate; 208. Disc plate; 209. Slider; 3. Limiting device; 301. Pull rod rope; 302. Card plate; 303. Spring B; 304. Folding plate; 305. Card slot. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0028] like Figure 1 , Figure 2 As shown, an anti-deformation spring device includes a protective device 1, which includes a circular column 101. A base 102 is fixedly connected to the bottom of the circular column 101. A top cover 103 is provided above the circular column 101. A pressure plate 104 is fixedly connected to the side of the top cover 103 near the circular column 101. A cylindrical plate 105 is fixedly connected to the top surface of the inner wall of the pressure plate 104. A connecting seat 106 is fixedly connected to the bottom surface of the inner wall of the circular column 101. A spring A107 is sleeved on the circumferential surface of the connecting seat 106. The device also includes a clamping device 2 for fixing the spring A107 and a limiting device 3 for fixing the clamping device 2. The clamping device 2 includes a handle 201. A pull rod rope 301 passes through the inside of the handle 201 and is slidably connected to the handle 201.

[0029] like Figure 3 , Figure 4 , Figure 5As shown, the clamping device 2 includes a disc plate 208. A handle 201 is slidably connected to the circumferential surface of the disc plate 208. A transmission wheel 202 is fixedly connected to one end of the handle 201. A fixed column 203 passes through the inside of the transmission wheel 202 and is rotatably connected to the transmission wheel 202. A gear 204 is rotatably connected to the circumferential surface of the transmission wheel 202. A rotating rod 205 is slidably connected to the inside of the gear 204. A long rod 206 is hinged to the circumferential surface of the rotating rod 205. A guard plate 207 is fixedly connected to the end of the long rod 206 away from the rotating rod 205. A slider 209 passes through the surface of the handle 201 and is fixedly connected to the handle 201. In the above design, the linear pulling force of the user is converted into rotational motion through the fixed transmission wheel 202 via the handle 201 to drive the subsequent clamping mechanism.

[0030] like Figure 3 , Figure 4 , Figure 5 As shown, a groove is formed on the circumferential surface of the disc plate 208, and a cavity is formed inside the disc plate 208. Multiple guide grooves are formed on the surface of the disc plate 208. One side of the handle 201 is slidably connected to the groove formed on the circumferential surface of the disc plate 208. The bottom of the fixing post 203 is fixedly connected to the surface of the disc plate 208. The gear 204 rotates through a rotating plate, and the bottom of the rotating plate is fixedly connected to the surface of the disc plate 208. Multiple guide grooves are formed on the surface of the gear 204. The rotating rod 20... 5. One end near the gear 204 is slidably connected to the guide groove opened on the surface of the gear 204. There are several guard plates 207, which are evenly distributed on the circumferential surface of the disc plate 208. The slider 209 is slidably connected to the slide groove opened on the circumferential surface of the disc plate 208. The slider 209 has a cavity inside and a through hole on its surface. In the above design, the guard plates 207 are evenly distributed to ensure that a uniform radial clamping force is applied to the spring A107, preventing it from deflecting or being locally deformed.

[0031] like Figure 6 , Figure 7 As shown, in a preferred embodiment, based on the above method, the limiting device 3 further includes a locking plate 302, a spring B303 fixedly connected to the bottom of the locking plate 302, folding plates 304 provided on both sides of the slider 209, and a slot 305 provided on the circumferential surface of the disc plate 208, which is achieved in the above design.

[0032] like Figure 6 , Figure 7As shown, in a preferred embodiment, based on the above method, the end of the spring B303 away from the card plate 302 is fixedly connected to the surface of the internal cavity of the slider 209, and one end of the pull rod rope 301 is fixedly connected to the side of the card plate 302 near the spring B303. In the above design, the spring B303 provides the card plate 302 with an elastic force for automatic reset, ensuring that it can reliably be inserted into the card slot 305 to achieve limit locking.

[0033] like Figure 6 , Figure 7 As shown, in a preferred embodiment, based on the above method, the pull rod rope 301 is further slidably connected to the through hole provided on the surface of the slider 209, and the end of the folding plate 304 away from the slider 209 is fixedly connected to the groove opened on the circumferential surface of the disc plate 208. In the above design, the folding plate 304 connects the slider 209 and the disc plate 208, which plays a role in guiding and synchronizing the movement, and prevents the slider 209 from falling off the groove.

[0034] like Figure 1 , Figure 2 As shown, in a preferred embodiment, based on the above method, a disc plate 208 is further provided on the side of the connecting seat 106 near the base 102. Several bolts are provided on the surfaces of the base 102 and the top cover 103. A groove is provided on the inner circumferential surface of the circular column 101. A sliding plate is provided on the circumferential surface of the pressure plate 104 near the circular column 101. The sliding plate on the circumferential surface of the circular column 101 is slidably connected to the groove on the inner circumferential surface of the pressure plate 104. A sliding plate is provided on the circumferential surface of the cylindrical plate 105 near the connecting seat 106. A groove is provided on the inner circumferential surface of the connecting seat 106. The sliding plate on the circumferential surface of the cylindrical plate 105 is slidably connected to the groove on the inner circumferential surface of the connecting seat 106. In the above design, the groove on the inner wall of the circular column 101 serves as a guide structure to constrain the pressure plate 104 and its connecting parts, ensuring that it can only move linearly along the axis, preventing off-center loading and jamming, and ensuring the stability and accuracy of the compression stroke.

[0035] In use, the operator first pulls the handle 201 along the groove on the circumference of the disc plate 208, causing the handle 201 to slide along the groove. This movement is transmitted through a transmission wheel 202 fixedly connected to one end, causing the transmission wheel 202 to rotate around a fixed post 203. The fixed post 203 is then fixed to the surface of the disc plate 208, providing a stable pivot point. Next, the rotation of the transmission wheel 202 drives the gear 204, which is rotatably connected to its circumference, to rotate. A guide groove is provided inside the gear 204, allowing one end of the rotating rod 205 to slide within it. Therefore, the rotation of the gear 204... The movement of the rotating rod 205 is transformed into a horizontal linear motion, which is further transmitted through the long rod 206 hinged on its circumference. This, in turn, pushes the guard plate 207 fixedly connected to the other end of the long rod 206 to retract towards the center or expand outward, thereby clamping or releasing the internal spring A107. The even distribution of multiple guard plates 207 ensures the uniform distribution of clamping force and prevents local stress concentration in the spring. This solves the problem that it is difficult to keep the spring fixed when it is compressed, which causes the spring to deviate due to vibration when compressed, resulting in uneven load, lateral instability or overall torsion, leading to excessive wear, abnormal noise or even permanent plastic deformation and shortening service life.

[0036] Furthermore, the pull rod rope 301, which is slidably connected to the handle 201, is pulled synchronously, thereby fixing one end of the pull rod rope 301 to the clamping plate 302. Its movement overcomes the elastic force of the spring B303, thereby causing the clamping plate 302 to disengage from the groove 305 on the circumferential surface of the disc plate 208. At this time, the slider 209 can slide freely. When the operator slides the handle 201 and the slider 209 connected to it to the desired position, the pull rod rope 301 is released, thereby causing the spring B303 to push the clamping plate 302 upward, so that it re-clamps into the corresponding groove 305 on the disc plate 208. This fixes the position of the slider 209 and the entire handle 201, achieving a hard limit on the stroke of the clamping device 2. This solves the problem that after clamping and fixing the spring, the clamping device may loosen due to external force collision, resulting in the loss of clamping effect, spring displacement, and ultimately device failure and shortened service life.

[0037] Finally, when the external load is transmitted to the pressure plate 104 and the cylindrical plate 105 through the top cover 103, the cylindrical plate 105 is pressed down smoothly along the groove on the inner circumferential surface of the connecting seat 106, thereby compressing the spring A107 inside. Since the lower end of the spring A107 is fixed through the connecting seat 106, the upper end is firmly clamped by the locked clamping device 2, and its compression stroke is precisely limited, effectively avoiding permanent deformation caused by excessive compression or off-center loading.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. Anti-deformation spring device comprising a shield (1), characterized in that, The protective device (1) includes a circular column (101), a base (102) is fixedly connected to the bottom of the circular column (101), a top cover (103) is provided above the circular column (101), a pressure plate (104) is fixedly connected to the side of the top cover (103) near the circular column (101), a cylindrical plate (105) is fixedly connected to the top surface of the inner wall of the pressure plate (104), a connecting seat (106) is fixedly connected to the bottom surface of the inner wall of the circular column (101), and a spring A (107) is sleeved on the circumferential surface of the connecting seat (106); it also includes a clamping device (2) for fixing the spring A (107); a limiting device (3) for fixing the clamping device (2); the clamping device (2) includes a handle (201), a pull rod rope (301) passes through the inside of the handle (201) and is slidably connected to the handle (201).

2. A distortion-proof spring device according to claim 1, characterized in that The clamping device (2) includes a disc plate (208), a handle (201) is slidably connected to the circumferential surface of the disc plate (208), a transmission wheel (202) is fixedly connected to one end of the handle (201), a fixed column (203) passes through the inside of the transmission wheel (202) and is rotatably connected to the transmission wheel (202), a gear (204) is rotatably connected to the circumferential surface of the transmission wheel (202), a rotating rod (205) is slidably connected to the inside of the gear (204), a long rod (206) is hinged to the circumferential surface of the rotating rod (205), a guard plate (207) is fixedly connected to one end of the long rod (206) away from the rotating rod (205), and a slider (209) passes through the surface of the handle (201) and is fixedly connected to the handle (201).

3. A distortion-proof spring device according to claim 2, characterized in that The disc plate (208) has a groove on its circumference, a cavity inside, and multiple guide grooves on its surface. One side of the handle (201) is slidably connected to the groove on the circumference of the disc plate (208). The bottom of the fixing post (203) is fixedly connected to the surface of the disc plate (208). The gear (204) rotates through a rotating plate, and the bottom of the rotating plate is fixedly connected to the surface of the disc plate (208). The surface of the gear (204) is provided with multiple guide grooves. The end of the rotating rod (205) near the gear (204) is slidably connected to the guide groove on the surface of the gear (204). There are several guard plates (207) and they are evenly distributed on the circumferential surface of the disc plate (208). The slider (209) is slidably connected to the groove on the circumferential surface of the disc plate (208). The slider (209) has a cavity inside and a through hole on its surface.

4. A distortion-proof spring device according to claim 3, characterized in that The limiting device (3) also includes a locking plate (302), a spring B (303) is fixedly connected to the bottom of the locking plate (302), folding plates (304) are provided on both sides of the slider (209), and a slot (305) is provided on the circumferential surface of the disc plate (208).

5. A distortion-proof spring device according to claim 4, characterized in that The end of the spring B (303) away from the plate (302) is fixedly connected to the surface of the cavity inside the slider (209), and the end of the pull rod rope (301) is fixedly connected to the side of the plate (302) near the spring B (303).

6. A distortion-proof spring device according to claim 4, characterized in that The pull rod rope (301) is slidably connected to the through hole provided on the surface of the slider (209), and the end of the folding plate (304) away from the slider (209) is fixedly connected to the groove opened on the circumferential surface of the disc plate (208).

7. A distortion-proof spring device according to claim 1, characterized in that A disc plate (208) is provided on the side of the connecting seat (106) near the base (102). Several bolts are provided on the surfaces of the base (102) and the top cover (103). A sliding groove is provided on the inner circumferential surface of the circular column (101). A sliding plate is provided on the circumferential surface of the pressure plate (104) near the circular column (101). The sliding plate on the circumferential surface of the circular column (101) is slidably connected to the sliding groove on the inner circumferential surface of the pressure plate (104). A sliding plate is provided on the circumferential surface of the cylindrical plate (105) near the connecting seat (106). A sliding groove is provided on the inner circumferential surface of the connecting seat (106). The sliding plate on the circumferential surface of the cylindrical plate (105) is slidably connected to the sliding groove on the inner circumferential surface of the connecting seat (106).

Images