Tension spring with stable locking structure

Abstract

The tension spring with the stable locking structure comprises a tension spring body, the two ends of the tension spring body are respectively provided with a connecting arm, the two connecting arms and the tension spring body are integrally formed, the two sides of the tension spring body are respectively provided with a connecting hook, one end of each connecting hook is provided with a movable arm, and the other end of each connecting hook is provided with a locking device. According to the tension spring, the distance between the connecting hooks and the tension spring body is shortened through the adjusting mechanism, so that the stretching degree of the tension spring body after installation is improved, and therefore, the tension spring is convenient to use, and the service life of the tension spring is prolonged. The pressure between the connecting hook and the connecting component can be increased, the friction force between the connecting hook and the connecting component is larger, so that the stable locking effect is achieved, meanwhile, the inner side protrusion of the connecting hook is flattened, the contact area between the connecting hook and the connecting component can be larger, and the purpose of improving the stable effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of springs, in particular to a tension spring with a stable locking structure. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under external forces and return to their original shape after the external forces are removed. They are usually made of circular cross-section material spring steel.

[0003] When installing a tension spring, the hooks at both ends are usually hooked onto the connecting component, and the tension spring is stretched to a certain extent. Under the action of the stretching force, there will be a certain pressure between the hook and the connecting component, thereby fixing the hook on the connecting component. However, the size of the existing tension spring is usually certain. When the hooks at both ends of the tension spring are installed, if the degree of stretching of the tension spring is too small, this will cause the pressure between the hook and the connecting component to be too small, which is easy to cause the hook and the connecting component to become loose. For this reason, a tension spring with a stable locking structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a tension spring with a stable locking structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tension spring with a stable locking structure, comprising a tension spring body, connecting arms are respectively provided at both ends of the tension spring body, and the two connecting arms are integrally formed with the tension spring body, and connecting hooks are also respectively provided on both sides of the tension spring body, and a movable arm is provided at one end of the connecting hook, and the movable arm is integrally formed with the connecting hook, and the two movable arms are respectively slidably inserted in sliding grooves opened in the two connecting arms, and adjustment mechanisms acting on the two movable arms are also respectively provided on the outer walls of the two connecting arms.

[0006] As a further preferred embodiment of the present technical solution, the cross section of the slide groove is a non-circular structure.

[0007] As a further preferred embodiment of the present technical solution, the adjusting mechanism consists of a fixed block, an adjusting block, a rotating part and an adjusting screw, the fixed block is fixedly connected to the outer wall of the connecting arm, the adjusting block is fixedly connected to the outer wall of the movable arm, the side wall of the fixed block away from the adjusting block is rotatably connected to the rotating part, the side wall of the fixed block close to the adjusting block is rotatably connected to the adjusting screw, one end of the adjusting screw is fixedly connected to the rotating part, and the other end of the adjusting screw passes through the adjusting block and is connected to the adjusting block by threaded fitting.

[0008] As a further preferred embodiment of the present technical solution, the end of the adjusting screw is fixedly connected to a limiting block.

[0009] As a further preferred embodiment of the present technical solution, a plurality of vertically arranged anti-slip slits are provided on the outer wall of the rotating member, and the plurality of anti-slip slits are distributed in a ring-shaped array.

[0010] As a further preferred embodiment of the present technical solution, the inner protrusion of the connecting hook is flattened.

[0011] As a further preferred embodiment of the present technical solution, the inner ring side wall of the connecting hook is frosted.

[0012] The utility model provides a tension spring with a stable locking structure, which has the following beneficial effects:

[0013] The utility model shortens the distance between the connecting hook and the tension spring body through the adjustment mechanism, thereby increasing the stretching degree of the tension spring body after installation. In this way, the pressure between the connecting hook and the connecting component will increase, and the friction between the connecting hook and the connecting component will also be greater, thereby achieving a stable locking effect. At the same time, the inner side protrusion of the connecting hook is flattened, so that the contact area between the connecting hook and the connecting component can be larger, thereby achieving the purpose of improving the stabilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of a part of the structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the connecting hook in the utility model;

[0018] In the figure: 1. tension spring body; 2. connecting arm; 3. connecting hook; 4. movable arm; 5. fixed block; 6. adjusting block; 7. rotating part; 8. adjusting screw; 9. limit block; 10. slide groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4As shown, in this embodiment, a tension spring with a stable locking structure includes a tension spring body 1, connecting arms 2 are respectively provided at both ends of the tension spring body 1, and the two connecting arms 2 are integrally formed with the tension spring body 1. Connecting hooks 3 are also respectively provided on both sides of the tension spring body 1, and movable arms 4 are provided at one end of the connecting hook 3, and the movable arms 4 are integrally formed with the connecting hook 3. The two movable arms 4 are respectively slidably inserted in the sliding grooves 10 opened in the two connecting arms 2, and the outer walls of the two connecting arms 2 are also respectively provided with adjustment mechanisms acting on the two movable arms 4.

[0021] The movable arm 4 is slidably fitted with the slide groove 10. The depth of the movable arm 4 inserted into the slide groove 10 can be freely controlled through the adjustment mechanism, thereby controlling the distance between the connecting hook 3 and the tension spring body 1. When the tension spring body 1 is installed, the connecting hooks 3 on both sides of the tension spring body 1 will hook the connecting component and keep the tension spring body 1 in a stretched state, thereby completing the fixation of the tension spring body 1. However, there is a problem that the tension of the tension spring body 1 is insufficient, and the pressure between the connecting hook 3 and the connecting component is too small, which makes it easy for the connecting hook 3 and the connecting component to become loose. The present application can increase the tension of the tension spring body 1 by shortening the distance between the connecting hook 3 and the tension spring body 1. In this way, the pressure between the connecting hook 3 and the connecting component will increase, and the firmness between the connecting hook 3 and the connecting component will be stronger, thereby achieving a stable locking effect.

[0022] The cross section of the slide groove 10 is a non-circular structure.

[0023] Such an arrangement can ensure that the movable arm 4 cannot rotate in the slide slot 10 .

[0024] Among them, the adjustment mechanism is composed of a fixed block 5, an adjustment block 6, a rotating part 7 and an adjusting screw 8. The fixed block 5 is fixedly connected to the outer wall of the connecting arm 2, the adjusting block 6 is fixedly connected to the outer wall of the movable arm 4, the side wall of the fixed block 5 away from the adjusting block 6 is rotatably connected with the rotating part 7, the side wall of the fixed block 5 close to the adjusting block 6 is rotatably connected with the adjusting screw 8, one end of the adjusting screw 8 is fixedly connected to the rotating part 7, and the other end of the adjusting screw 8 passes through the adjusting block 6 and is connected to the adjusting block 6 by threaded fitting.

[0025] When in use, the rotating member 7 is rotated to drive the adjusting screw 8 to rotate, thereby driving the adjusting block 6 to move along the direction of the adjusting screw 8, and then controlling the movable arm 4 to slide in the sliding groove 10.

[0026] The end of the adjusting screw 8 is fixedly connected to a limiting block 9 .

[0027] The setting of the limit block 9 can prevent the adjusting screw 8 from being separated from the adjusting block 6.

[0028] Among them, a plurality of vertically arranged anti-skid slits are opened on the outer wall of the rotating member 7, and the plurality of anti-skid slits are distributed in a ring array.

[0029] By providing an anti-slip groove on the outer surface of the rotating member 7, the friction between the hand and the rotating member 7 can be increased, allowing the user to rotate the rotating member 7 more easily.

[0030] The inner protrusion of the connecting hook 3 is flattened.

[0031] Such an arrangement can make the contact area between the connecting hook 3 and the connecting component larger, so that the connecting hook 3 is more stable after installation.

[0032] The inner ring side wall of the connecting hook 3 is frosted.

[0033] Such an arrangement can increase the friction between the connecting hook 3 and the connecting component.

[0034] The utility model provides a tension spring with a stable locking structure, and the specific working principle is as follows:

[0035] When in use, after the connecting hooks 3 on both sides of the tension spring body 1 are hooked onto the connecting component, if the tension spring body 1 is not stretched enough, the rotating part 7 can be rotated to drive the adjusting screw 8 to rotate, thereby driving the adjusting block 6 to move along the direction of the adjusting screw 8, and then the movable arm 4 slides in the slide groove 10, and the movable arm 4 is controlled to go deeper into the slide groove 10, so that the distance between the connecting hook 3 and the tension spring body 1 can be shortened, which can increase the stretching degree of the tension spring body 1. In this way, the pressure between the connecting hook 3 and the connecting component will increase, and the friction between the connecting hook 3 and the connecting component will also be greater, thereby achieving a stable locking effect. At the same time, the inner protrusion of the connecting hook 3 is flattened, so that the contact area between the connecting hook 3 and the connecting component can be larger, thereby achieving the purpose of improving the stabilization effect.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension spring with a stable locking structure, comprising a tension spring body (1), characterized in that: The two ends of the tension spring body (1) are respectively provided with connecting arms (2), and the two connecting arms (2) are integrally formed with the tension spring body (1). The two sides of the tension spring body (1) are also respectively provided with connecting hooks (3), and one end of the connecting hook (3) is provided with a movable arm (4), and the movable arm (4) is integrally formed with the connecting hook (3). The two movable arms (4) are respectively slidably inserted in the sliding grooves (10) provided in the two connecting arms (2), and the outer walls of the two connecting arms (2) are also respectively provided with adjustment mechanisms acting on the two movable arms (4).

2. The tension spring with a stable locking structure according to claim 1, characterized in that: The cross section of the slide groove (10) is a non-circular structure.

3. The tension spring with a stable locking structure according to claim 1, characterized in that: The adjustment mechanism is composed of a fixed block (5), an adjustment block (6), a rotating member (7) and an adjusting screw (8); the fixed block (5) is fixedly connected to the outer wall of the connecting arm (2); the adjustment block (6) is fixedly connected to the outer wall of the movable arm (4); a side wall of the fixed block (5) away from the adjustment block (6) is rotatably connected to the rotating member (7); a side wall of the fixed block (5) close to the adjustment block (6) is rotatably connected to the adjusting screw (8); one end of the adjusting screw (8) is fixedly connected to the rotating member (7); the other end of the adjusting screw (8) passes through the adjustment block (6) and is connected to the adjustment block (6) by threaded engagement.

4. The tension spring with a stable locking structure according to claim 3, characterized in that: The end of the adjusting screw (8) is fixedly connected to a limiting block (9).

5. The tension spring with a stable locking structure according to claim 3, characterized in that: A plurality of vertically arranged anti-slip slits are provided on the outer wall of the rotating member (7), and the plurality of anti-slip slits are distributed in a ring-shaped array.

6. The tension spring with a stable locking structure according to claim 1, characterized in that: The inner protrusion of the connecting hook (3) is flattened.

7. The tension spring with a stable locking structure according to claim 1, characterized in that: The inner ring side wall of the connecting hook (3) is frosted.

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