A durable stainless steel coil spring

Abstract

This utility model discloses a durable stainless steel coil spring, including a coil spring body, a rotating ring, and a connecting structure. When the coil spring body is connected to the rotating ring, the coil spring body is inserted into the connecting block, and then a pressure block is inserted into the connecting block. The connecting plate is connected by screws, and the pressure block is fixed inside the connecting block. At this time, the pressure block presses and locks the end of the coil spring body. Compared with the existing coil spring body hook and loop connection, this utility model adopts an insert splicing. The pressure block presses down, so that when the coil spring body is deformed under force, there will be no micro-fatigue cracks at the root, which will eventually lead to sudden brittle fracture. Then, the connecting block is connected to the connecting groove, and the insert plate is inserted into the slot. The fixing plate is fixed to the surface of the rotating ring by screws, so as to realize the connection between the coil spring body and the rotating ring, and the connection stability is high.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel coil spring technology, specifically a durable stainless steel coil spring. Background Technology

[0002] Stainless steel coil springs are a type of hardware part, a type of elastic element widely used in machinery and equipment. They have excellent elasticity and corrosion resistance and are suitable for various industrial fields.

[0003] Existing stainless steel coil springs have the following problems:

[0004] In the reciprocating tension motion of existing stainless steel coil springs, the root of the hook is a high-stress area, which can generate tiny fatigue cracks. Each cycle causes the cracks to expand a little, eventually leading to sudden brittle fracture. Utility Model Content

[0005] The purpose of this invention is to provide a durable stainless steel coil spring to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a durable stainless steel coil spring, comprising a coil spring body, a rotating ring provided on the outside of the coil spring body, a connecting structure provided in the rotating ring, the connecting structure including a connecting groove, a connecting groove provided on the inner side of the rotating ring, a connecting block connected in the connecting groove, one end of the coil spring body being spliced ​​with the connecting block, a pressure block provided inside the connecting block, a connecting plate provided on the surface of the pressure block, and a fixing plate provided on the surface of the connecting block.

[0007] Preferably, a baffle is provided at the end of the coil spring body, and a pressure port is provided in the middle of the baffle.

[0008] Preferably, the connecting block surface is provided with an insert plate, the insert plate surface is provided with a limit head, and the rotating ring is provided with a slot.

[0009] Preferably, the insert plate is elastic and tilts outward when in its natural, unforced state.

[0010] Preferably, when the fixing plate is in contact with the rotating ring, the insert plate is pressed against the inside of the slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] When the coil spring body is connected to the rotating ring, the coil spring body is inserted into the connecting block, and then the pressure block is inserted into the connecting block. The connecting plate is connected by screws, and the pressure block is fixed inside the connecting block. At this time, the pressure block presses and locks the end of the coil spring body. Compared with the existing coil spring body hook and ring connection, this utility model adopts an insertion splicing. The pressure block presses the coil spring body, so that when the coil spring body is deformed by force, there will be no small fatigue cracks at the root, which will eventually lead to sudden brittle fracture. Then, the connecting block is connected to the connecting groove, and the insert plate is inserted into the slot. The fixing plate is fixed to the surface of the rotating ring by screws, so as to realize the connection between the coil spring body and the rotating ring, and the connection stability is high. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present utility model;

[0015] Figure 3 This is a top view cross-sectional structural diagram of the connecting block of this utility model;

[0016] Figure 4 This is a schematic diagram of the connecting block docking structure of this utility model.

[0017] In the diagram: coil spring body-1, rotating ring-2, connecting structure-3, connecting groove-31, connecting block-32, pressure block-33, connecting plate-34, fixing plate-35, baffle-36, pressure port-37, insert plate-38, limit head-39, slot-310. Detailed Implementation

[0018] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0019] Please see Figure 1 and Figure 2 This utility model provides a durable stainless steel coil spring, including a coil spring body 1, a rotating ring 2 on the outside of the coil spring body 1, and a connecting structure 3 in the rotating ring 2.

[0020] Specifically, one end of the coil spring body 1 is fixed, and the other end is connected to the rotating ring 2 through the connecting structure 3. When the rotating ring 2 rotates, it will drive one end of the coil spring body 1, causing the coil spring body 1 to deform and generate elastic force.

[0021] Please see Figure 3 and Figure 4This utility model provides a durable stainless steel coil spring. The connecting structure 3 includes a connecting groove 31. The connecting groove 31 is opened on the inner side of the rotating ring 2. A connecting block 32 is connected in the connecting groove 31. One end of the coil spring body 1 is spliced ​​with the connecting block 32. A pressure block 33 is provided inside the connecting block 32. A connecting plate 34 is integrally formed on the surface of the pressure block 33. A fixing plate 35 is provided on the surface of the connecting block 32.

[0022] The coil spring body 1 has a baffle 36 at one end. The baffle 36 is spliced ​​together with the coil spring body 1 and inserted into the connecting block 32, making the connection of the coil spring body 1 more stable and less prone to displacement. The baffle 36 has a pressure port 37 in the middle stroke. After the pressure block 33 is fixed inside the rotating ring 2, it is pressed into the pressure port 37, thereby pressing against the coil spring body 1, which has a more stable connection and fixing effect.

[0023] The connecting block 32 has an integrally formed insert plate 38 on its surface, and an integrally formed limiting head 39 on its surface. The rotating ring 2 has a slot 310. The insert plate 38 is elastic. When the insert plate 38 is in its natural state without force, it tilts outward. When the fixing plate 35 is in contact with the rotating ring 2, the insert plate 38 is pressed against the inside of the slot 310. This ensures that the connecting block 32 will not be tilted or opened after installation. Moreover, the insert plate 38 will generate elastic force when pressed, which makes the connection more stable after the fixing plate 35 is connected to the connecting block 32 by screws, and has the beneficial effect of not being easy to loosen.

[0024] Specifically, when the coil spring body 1 is connected to the rotating ring 2, the coil spring body 1 is inserted into the connecting block 32, and then the pressure block 33 is inserted into the connecting block 32. The connecting plate 34 is connected by screws, and the pressure block 33 is fixed inside the connecting block 32. At this time, the pressure block 33 presses and locks the end of the coil spring body 1. Compared with the existing hook and ring connection of the coil spring body 1, this utility model adopts an insertion splicing. The pressure block 33 presses, so that when the coil spring body 1 is deformed by force, there will be no small fatigue cracks at the root, which will eventually lead to sudden brittle fracture. Then, the connecting block 32 is connected to the connecting groove 31, and the insert plate 38 is inserted into the slot 310. The fixing plate 35 is connected by screws and fixed to the surface of the rotating ring 2. At this time, the insert plate 38 deforms under force and abuts against the inside of the slot 310, making the screw connection more stable and less prone to loosening. This realizes the connection between the coil spring body 1 and the rotating ring 2, and the connection stability is high.

[0025] The above description is merely 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 durable stainless steel coil spring comprising a coil spring body (1) provided externally with a rotating ring (2), characterized in that: It also includes a connecting structure (3), in which the rotating ring (2) is provided with a connecting structure (3), the connecting structure (3) includes a connecting groove (31), the inner side of the rotating ring (2) is provided with a connecting groove (31), a connecting block (32) is connected in the connecting groove (31), one end of the coil spring body (1) is spliced ​​with the connecting block (32), a pressure block (33) is provided inside the connecting block (32), a connecting plate (34) is provided on the surface of the pressure block (33), and a fixing plate (35) is provided on the surface of the connecting block (32).

2. A long-life stainless steel coil spring according to claim 1, wherein: The end of the coil spring body (1) is provided with a baffle (36), and the baffle (36) has a pressure port (37) in the middle stroke.

3. The long-life stainless steel coil spring of claim 1 wherein: The connecting block (32) has a plug plate (38) on its surface, a limit head (39) on its surface, and a slot (310) in the rotating ring (2).

4. The long-life stainless steel coil spring of claim 3 wherein: The insert plate (38) is elastic and tilts outward when it is in a natural, unforced state.

5. The long-life stainless steel coil spring of claim 4 wherein: When the fixed plate (35) is in contact with the rotating ring (2), the insert plate (38) is pressed against the inside of the slot (310).

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