Spring with unhooking prevention function

Abstract

The utility model relates to the technical field of springs, and discloses a spring with an unhooking prevention function, which comprises a spring main body, hooks are fixedly mounted at two ends of the spring main body, movable blocks are rotatably mounted on the outer sides of the hooks, limiting pieces are fixedly mounted on the outer sides of the movable blocks, first connecting blocks are fixedly mounted at the tail ends of the hooks, and second connecting blocks are fixedly mounted at the tail ends of the first connecting blocks. A second connecting block is fixedly installed at the tail end of the limiting piece, and a first limiting ring is fixedly installed on the outer side of the first connecting block. According to the anti-unhooking device, the movable block and the limiting piece are matched with each other, after the hook of the spring is installed, the limiting piece is driven to rotate, the limiting piece moves to the opening of the hook and shields the opening, an object is prevented from falling off from the opening, and the anti-unhooking effect is achieved; when the position of the limiting piece is changed, only the sliding sleeve needs to be pushed, other tools are not needed, and operation is very convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring technical field, concretely is a spring with prevent unhooking function. BACKGROUND

[0002] Spring is a kind of mechanical parts using elasticity to work, and the part made of elastic material is deformed under the action of external force, and restores to the original state after removing the external force, and spring can be divided into compression spring, tension spring, torsion spring etc., wherein the two ends of tension spring are provided with hooks, and heavy objects can be directly hung.

[0003] Now most of the hook structure of spring is simple, and the opening is directly exposed, without shielding objects, after the hook is hung with objects, the objects may fall off along the opening, and there is certain safety hazard. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a spring with prevent unhooking function, which can solve the problems in the above background technology.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a spring with prevent unhooking function, including spring main part, the both ends of spring main part are fixedly installed with hook, the outer side of hook is rotatably installed with movable block, the outer side of movable block is fixedly installed with limit piece, the end of hook is fixedly installed with connecting block one, the end of limit piece is fixedly installed with connecting block two, the outer side of connecting block one is fixedly installed with limit ring one, the outer side of connecting block two is fixedly installed with limit ring two, the outer side of limit piece is movably installed with sliding sleeve, the inside of sliding sleeve is fixedly installed with lug, the inside of limit piece is provided with through hole, the outer side of limit piece is provided with connecting groove, the inside of through hole is provided with reset spring.

[0008] Preferably, the movable block is located at one end of the hook close to the spring main body, and the limit piece is an arc structure.

[0009] Through the above technical scheme, the both ends of spring main body are connected with other objects through hook, and the limit piece can be rotated along the outer side of hook through movable block.

[0010] Preferably, the cross section of connecting block one and connecting block two is semicircular, the radius of connecting block one is same with the radius of connecting block two, and connecting block one and connecting block two are bonded.

[0011] With the above technical solution, when connecting block one and connecting block two are attached together, the cross-section is combined to form a circle, and the sliding sleeve can slide to the outside of connecting block one and connecting block two.

[0012] Preferably, the first limiting ring is located at the end of the first connecting block near the hook, and the second limiting ring is located at the end of the second connecting block away from the limiting member, with the first limiting ring and the second limiting ring fitting together.

[0013] With the above technical solution, when connecting block one and connecting block two are attached together, limiting ring one and limiting ring two are attached together and combined to form a circle.

[0014] Preferably, the sliding sleeve has an arc-shaped structure, and the sliding sleeve is respectively fitted with limiting ring one and limiting ring two.

[0015] The above technical solution prevents the sliding sleeve from falling off.

[0016] Preferably, the connecting groove is in communication with the interior of the through hole, and the protrusion passes through the connecting groove and is located inside the through hole.

[0017] With the above technical solution, when the sliding sleeve slides, the internal protrusions move along the through hole.

[0018] Preferably, one end of the return spring is in contact with the movable block, and the other end of the return spring is in contact with the protrusion.

[0019] Through the above technical solution, the return spring applies elastic force to the sliding sleeve through the protrusion.

[0020] Compared with the prior art, this utility model provides a spring with anti-disengagement function, which has the following beneficial effects:

[0021] 1. This utility model uses a movable block and a limiting component that work together to rotate the limiting component after the hook of the spring is installed. The limiting component moves to the opening of the hook and blocks it, preventing the object from falling out of the opening and thus preventing it from coming off the hook.

[0022] 2. This utility model uses the cooperation of connecting block one, connecting block two, sliding sleeve and return spring to position the limiting part and hook. When changing the position of the limiting part, only the sliding sleeve needs to be pushed, no other tools are required, and the operation is very convenient. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 It is the three-dimensional structure schematic view of the limiting piece of the utility model;

[0026] Figure 4 It is the three-dimensional structure schematic view of the sliding sleeve of the utility model;

[0027] Figure 5 It is the sectional structure schematic view of the hook, movable block and limiting piece of the utility model;

[0028] Figure 6 It is the utility model Figure 2 The enlarged structure schematic view of A place in the middle.

[0029] Among them: 1, spring main body;2, hook;3, movable block;4, limiting piece;5, connecting block one;6, connecting block two;7, limiting ring one;8, limiting ring two;9, sliding sleeve;10, protruding block;11, through hole;12, connecting groove;13, reset spring. Specific implementation

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Embodiment one:

[0032] As Figures 1-6 shown, the utility model provides a spring with anti -unhooking function, including spring main body 1, the both ends fixed mounting of spring main body 1 have hook 2, the outside rotary mounting of hook 2 has movable block 3, the outside fixed mounting of movable block 3 has limiting piece 4, the end fixed mounting of hook 2 has connecting block one 5, the end fixed mounting of limiting piece 4 has connecting block two 6, the outside fixed mounting of connecting block one 5 has limiting ring one 7, the outside fixed mounting of connecting block two 6 has limiting ring two 8, the outside movable installation of limiting piece 4 has sliding sleeve 9, the inside fixed mounting of sliding sleeve 9 has protruding block 10, the inside of limiting piece 4 is equipped with through hole 11, and the outside of limiting piece 4 is equipped with connecting groove 12, and the inside of through hole 11 is provided with reset spring 13.

[0033] Specifically, movable block 3 is located at one end of hook 2 close to spring main body 1, and limiting piece 4 is arc structure. Advantage is, the both ends of spring main body 1 are connected with other objects through hook 2, and limiting piece 4 can be rotated along the outside of hook 2 through movable block 3.

[0034] Specifically, the cross-sections of connecting block 5 and connecting block 6 are semi-circular, and the radius of connecting block 5 is the same as that of connecting block 6. Connecting block 5 and connecting block 6 are fitted together. The advantage is that when connecting block 5 and connecting block 6 are fitted together, the combined cross-section forms a circle, and the sliding sleeve 9 can slide to the outside of connecting block 5 and connecting block 6.

[0035] Specifically, the first limiting ring 7 is located at the end of the first connecting block 5 near the hook 2, and the second limiting ring 8 is located at the end of the second connecting block 6 away from the limiting member 4. The first limiting ring 7 and the second limiting ring 8 are in contact. The advantage is that when the first connecting block 5 and the second connecting block 6 are in contact, the first limiting ring 7 and the second limiting ring 8 are in contact at the same time and combine to form a circle.

[0036] Specifically, the sliding sleeve 9 has an arc-shaped structure, and it is fitted with limiting ring 7 and limiting ring 8 respectively. The advantage is that limiting ring 7 and limiting ring 8 prevent the sliding sleeve 9 from falling off.

[0037] Example 2:

[0038] like Figures 1-6 As shown, this is an improvement on the previous embodiment. Specifically, the connecting groove 12 and the through hole 11 are interconnected, and the protrusion 10 passes through the connecting groove 12 and is located inside the through hole 11. The advantage is that when the sliding sleeve 9 slides, the internal protrusion 10 moves along the through hole 11.

[0039] Specifically, one end of the return spring 13 is in contact with the movable block 3, and the other end of the return spring 13 is in contact with the protrusion 10. The advantage is that the return spring 13 applies elastic force to the sliding sleeve 9 through the protrusion 10.

[0040] In use, the sliding sleeve 9 is moved along the outside of the limiting member 4, exposing the connecting block 2 6. The internal return spring 13 is compressed and deformed. The limiting member 4 is rotated by the movable block 3. After the connecting block 1 5 and the connecting block 2 6 are separated, the two ends of the spring body 1 can be connected to other objects through the hook 2. After the hook 2 is installed, the movable block 3 is rotated to make the connecting block 1 5 and the connecting block 2 6 fit together. After the sliding sleeve 9 is released, the return spring 13 returns to its original state and applies elastic force to the sliding sleeve 9 through the protrusion 10. The sliding sleeve 9 slides to the outside of the connecting block 1 5 and the connecting block 2 6 and contacts the limiting ring 1 7 and the limiting ring 2 8, which can prevent the movable block 3 from rotating. The limiting member 4 blocks the opening of the hook 2, which plays a role in preventing the hook from coming off.

[0041] 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 spring with anti-disengagement function, comprising a spring body (1), characterized in that: Hooks (2) are fixedly installed at both ends of the spring body (1). Movable blocks (3) are rotatably installed on the outside of the hooks (2). Limiting parts (4) are fixedly installed on the outside of the movable blocks (3). Connecting block one (5) is fixedly installed at the end of the hooks (2). Connecting block two (6) is fixedly installed at the end of the limiting parts (4). Limiting ring one (7) is fixedly installed on the outside of the connecting block one (5). Limiting ring two (8) is fixedly installed on the outside of the connecting block two (6). Sliding sleeve (9) is movably installed on the outside of the limiting parts (4). Protrusion (10) is fixedly installed inside the sliding sleeve (9). Through hole (11) is opened inside the limiting parts (4). Connecting groove (12) is opened on the outside of the limiting parts (4). Return spring (13) is provided inside the through hole (11).

2. A spring with anti-disengagement function according to claim 1, characterized in that: The movable block (3) is located at one end of the hook (2) near the spring body (1), and the limiting member (4) has an arc-shaped structure.

3. A spring with anti-disengagement function according to claim 1, characterized in that: The cross-sections of the first connecting block (5) and the second connecting block (6) are semi-circular. The radius of the first connecting block (5) is the same as that of the second connecting block (6). The first connecting block (5) and the second connecting block (6) are fitted together.

4. A spring with anti-disengagement function according to claim 1, characterized in that: The first limiting ring (7) is located at the end of the first connecting block (5) near the hook (2), and the second limiting ring (8) is located at the end of the second connecting block (6) away from the limiting member (4). The first limiting ring (7) and the second limiting ring (8) are in contact.

5. A spring with anti-disengagement function according to claim 1, characterized in that: The sliding sleeve (9) has an arc-shaped structure and is fitted with limiting ring one (7) and limiting ring two (8) respectively.

6. A spring with anti-disengagement function according to claim 1, characterized in that: The connecting groove (12) is connected to the interior of the through hole (11), and the protrusion (10) passes through the connecting groove (12) and is located inside the through hole (11).

7. A spring with anti-disengagement function according to claim 1, characterized in that: One end of the reset spring (13) is in contact with the movable block (3), and the other end of the reset spring (13) is in contact with the protrusion (10).

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