Anti-unhooking coil spring

Abstract

The utility model relates to the technical field of coil springs, and discloses an anti-unhooking coil spring which comprises a mounting box, a clamping groove is formed in the top end of the mounting box, a rotating rod is rotationally arranged at the bottom end of the mounting box, a coil spring is arranged in the mounting box, an inserting groove is formed in the top end of the rotating rod, and the end of the inner diameter of the coil spring is inserted into the inserting groove. The top end and the bottom end of the inner diameter end of the coil spring are each provided with a limiting assembly, and the top end of the limiting assembly on the top is provided with a blocking assembly. Through mutual cooperation of the crossed groove, the inserting groove and the limiting assemblies, the inner diameter end of the coil spring can be limited, so that the coil spring is not prone to unhooking when the rotating rod rotates, and the coil spring is not prone to unhooking; and through the arrangement of the blocking assembly, the limiting assembly and the coil spring can be prevented from being separated from the cross groove and the inserting groove, and therefore the stability of the limiting assembly and the coil spring in the cross groove and the inserting groove is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coil springs, and in particular to an anti-unhooking coil spring. Background Art

[0002] A planar spiral spring, also known as a clockwork spring, is a spring with one end fixed and the other end acting on a torque. Under the action of the torque, the spring material undergoes bending elastic deformation, causing the spring to twist within the plane, and the size of the deformation angle is proportional to the torque.

[0003] When the existing coil spring is installed in the installation box, the inner diameter of the coil spring is large after production, and there is no structure to limit the end of the inner diameter of the coil spring when it is installed in the installation box. Therefore, it is easy for the coil spring to become unhooked during rotation, thereby affecting the normal use of the coil spring. Therefore, an anti-unhooking coil spring is needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-unhooking coil spring, which solves the problem in the prior art that when the existing coil spring is installed in an installation box, the inner diameter of the coil spring is large after production, and there is no structure to limit the end of the inner diameter of the coil spring when it is installed in the installation box. Therefore, it is easy to unhook during rotation, thereby affecting the normal use of the coil spring.

[0005] The utility model provides the following technical solution: an anti-unhooking coil spring, comprising an installation box, a card slot is provided at the top of the installation box, a rotating rod is rotatably provided at the bottom of the installation box, a coil spring is provided inside the installation box, a slot is provided at the top of the rotating rod, the end of the inner diameter of the coil spring is inserted into the slot, the top and bottom ends of the inner diameter end of the coil spring are both provided with limit assemblies, and the top of the limit assembly at the top is provided with a blocking assembly.

[0006] As a preferred embodiment of the above technical solution, a cross groove is provided at a side end of the slot, and a limiting groove is provided at an inner side end of the cross groove.

[0007] As a preferred embodiment of the above technical solution, the limiting assembly includes a circular plate, which is rotatably set on the top of the coil spring, and the side ends of the circular plate are fixedly connected to two groups of side plates, and the top of the circular plate is rotatably set with a rotating plate, and the top of one of the side plates is provided with an installation groove.

[0008] As a preferred embodiment of the above technical solution, the barrier assembly includes a hollow rod, which is fixedly connected to the inner side end of the mounting groove, and the inner side end of the hollow rod is fixedly connected to a spring, and the side end of the spring is fixedly connected to a pull plate, and the side end of the pull plate is fixedly connected to a slider, and the slider is slidably connected to the inner side end of the mounting groove, and the side end of the pull plate is fixedly connected to a limiting plate.

[0009] As a preferred embodiment of the above technical solution, a pulling groove is provided at the top end of the pulling plate, and the limiting plate is inserted into the limiting groove.

[0010] As a preferred embodiment of the above technical solution, the rotating plate and the two sets of side plates are inserted into the cross groove.

[0011] As a preferred embodiment of the above technical solution, the outer diameter end of the coil spring is fixedly connected with a bent plate, and the bent plate is inserted into the slot.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model can limit the inner diameter end of the coil spring through the mutual cooperation of the cross groove, the slot and the limit assembly, so that the coil spring is not easily unhooked when the rotating rod rotates, thereby avoiding affecting the normal use of the coil spring. Through the setting of the barrier assembly, the limit assembly and the coil spring can be prevented from being separated from the cross groove and the slot, thereby improving the stability of the limit assembly and the coil spring in the cross groove and the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of a coil spring structure for preventing unhooking;

[0015] Figure 2 for Figure 1 A schematic diagram of the partially enlarged structure of the middle part;

[0016] Figure 3 This is a schematic diagram of the top view of an anti-unhooking coil spring;

[0017] Figure 4 This is a schematic diagram of a rotating rod structure of an anti-unhooking coil spring;

[0018] Figure 5 for Figure 3 Schematic diagram of the locally enlarged structure of B in the middle.

[0019] In the figure: 1. Installation box; 101. Card slot; 2. Rotating rod; 201. Slot; 202. Cross slot; 203. Limiting slot; 3. Coil spring; 301. Bend plate; 4. Limiting assembly; 401. Round plate; 402. Side plate; 403. Rotating plate; 404. Installation slot; 5. Blocking assembly; 501. Hollow rod; 502. Spring; 503. Pull plate; 504. Pull slot; 505. Limiting plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1-5As shown, the utility model provides a technical solution: an anti-unhooking coil spring, including an installation box 1, a card slot 101 is opened at the top of the installation box 1, a rotating rod 2 is rotatably set at the bottom end of the installation box 1, a coil spring 3 is arranged inside the installation box 1, the outer diameter end of the coil spring 3 is fixedly connected with a bent plate 301, the bent plate 301 is inserted into the card slot 101, the top of the rotating rod 2 is opened with a slot 201, the side end of the slot 201 is opened with a cross slot 202, the inner side end of the cross slot 202 is opened with a limiting slot 203, the inner diameter end of the coil spring 3 is inserted into the slot 201, and the inner diameter of the coil spring 3 is fixedly connected to the bent plate 301. The top and bottom ends of the end are both provided with a limit assembly 4, and the top of the top limit assembly 4 is provided with a barrier assembly 5. During implementation, through the mutual cooperation of the cross groove 202, the slot 201 and the limit assembly 4, the inner diameter end of the coil spring 3 can be limited, so that the coil spring 3 is not easy to be unhooked when the rotating rod 2 rotates, thereby avoiding affecting the normal use of the coil spring 3. Through the setting of the barrier assembly 5, the limit assembly 4 and the coil spring 3 can be prevented from being separated from the cross groove 202 and the slot 201, thereby improving the stability of the limit assembly 4 and the coil spring 3 in the cross groove 202 and the slot 201.

[0022] As an implementation method in this embodiment, Figure 2 、 Figure 4 and Figure 5 As shown, the limiting assembly 4 includes a circular plate 401, which is rotatably set at the top of the coil spring 3, and the side ends of the circular plate 401 are fixedly connected to two groups of side plates 402. The top of the circular plate 401 is rotatably set with a rotating plate 403, and the rotating plate 403 and the two groups of side plates 402 are all inserted into the cross groove 202. The top of one of the side plates 402 is provided with a mounting groove 404. During implementation, the end of the inner diameter of the coil spring 3 is inserted into the slot 201. At this time, the two groups of rotating plates 403 and the four groups of side plates 402 will enter the cross groove 202. Through the setting of the four groups of side plates 402 and the two groups of rotating plates 403, the inner diameter end of the coil spring 3 can be limited in cooperation with the cross groove 202, so that the coil spring 3 is not easily unhooked when the rotating rod 2 rotates, thereby avoiding affecting the normal use of the coil spring 3.

[0023] As an implementation method in this embodiment, Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the barrier assembly 5 includes a hollow rod 501, which is fixedly connected to the inner side end of the installation groove 404, and the inner side end of the hollow rod 501 is fixedly connected to a spring 502, and the side end of the spring 502 is fixedly connected to a pull plate 503, and the side end of the pull plate 503 is fixedly connected to a slider, and the slider is slidably connected to the inner side end of the installation groove 404, and the side end of the pull plate 503 is fixedly connected to a limit plate 505, and a pull groove 504 is provided on the top of the pull plate 503, and the limit plate 505 is inserted into the limit groove 203. In practice, by pulling the pull groove 504, the pull plate 503 is driven to move and press the spring 502 to contract, and the pull plate 503 is pulled. The plate 503 drives the limit plate 505 to move so that the limit plate 505 does not block the cross slot 202. At this time, the end of the inner diameter of the coil spring 3 can be inserted into the slot 201. At this time, the two sets of rotating plates 403 and the four sets of side plates 402 will enter the cross slot 202. At this time, the limit plate 505 is just aligned with the position of the limit slot 203. After releasing the pull plate 503, the spring 502 rebounds against the pull plate 503, driving the limit plate 505 to be inserted into the limit slot 203. At this time, the side plate 402 can be blocked to prevent the side plate 402 and the rotating plate 403 from detaching from the cross slot 202, thereby improving the stability of the coil spring 3 in the slot 201.

[0024] Working principle: by rotating the two groups of side plates 402 and the rotating plate 403 in each limiting assembly 4 into a cross shape, at this time, by pulling the pulling groove 504, the pulling plate 503 is driven to move and press the spring 502 to shrink, and the pulling plate 503 drives the limiting plate 505 to move, so that the limiting plate 505 does not block the cross groove 202. At this time, the end of the inner diameter of the coil spring 3 can be inserted into the slot 201. At this time, the two groups of rotating plates 403 and the four groups of side plates 402 will enter the cross groove 202. At this time, the limiting plate 505 is just aligned with the position of the limiting groove 203. When the pull plate 503 is released, the spring 502 rebounds against the pull plate 503, driving the limit plate 505 to be inserted into the limit groove 203. At this time, the side plate 402 can be blocked to prevent the side plate 402 and the rotating plate 403 from disengaging from the cross groove 202, thereby improving the stability of the coil spring 3 in the slot 201. At the same time, through the arrangement of four groups of side plates 402 and two groups of rotating plates 403, the inner diameter end of the coil spring 3 can be limited in cooperation with the cross groove 202, so that the coil spring 3 is not easy to be unhooked when the rotating rod 2 rotates, thereby avoiding affecting the normal use of the coil spring 3.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. An anti-unhooking coil spring, comprising a mounting box (1), a top end of the mounting box (1) having a slot (101), a bottom end of the mounting box (1) having a rotating rod (2) rotatably provided thereon, and an interior of the mounting box (1) having a coil spring (3), characterized in that: A slot (201) is provided at the top end of the rotating rod (2), and the inner diameter end of the coil spring (3) is inserted into the slot (201). The top and bottom ends of the inner diameter end of the coil spring (3) are both provided with a limiting assembly (4), and the top end of the limiting assembly (4) is provided with a blocking assembly (5).

2. The anti-unhooking coil spring according to claim 1, characterized in that: A cross slot (202) is provided at a side end of the slot (201), and a limit slot (203) is provided at an inner side end of the cross slot (202).

3. The anti-unhooking coil spring according to claim 2, characterized in that: The limiting assembly (4) includes a circular plate (401), the circular plate (401) is rotatably arranged on the top end of the coil spring (3), the side ends of the circular plate (401) are fixedly connected to two sets of side plates (402), and the top end of the circular plate (401) is rotatably provided with a rotating plate (403), and the top end of one of the side plates (402) is provided with a mounting groove (404).

4. The anti-unhooking coil spring according to claim 3, characterized in that: The barrier assembly (5) comprises a hollow rod (501), the hollow rod (501) being fixedly connected to the inner side end of the mounting groove (404), the inner side end of the hollow rod (501) being fixedly connected to a spring (502), the side end of the spring (502) being fixedly connected to a pull plate (503), the side end of the pull plate (503) being fixedly connected to a slider, the slider being slidably connected to the inner side end of the mounting groove (404), and the side end of the pull plate (503) being fixedly connected to a limit plate (505).

5. The anti-unhooking coil spring according to claim 4, characterized in that: A pulling groove (504) is provided at the top end of the pulling plate (503), and the limiting plate (505) is inserted into the limiting groove (203).

6. The anti-unhooking coil spring according to claim 3, characterized in that: The rotating plate (403) and the two sets of side plates (402) are inserted into the cross slot (202).

7. The anti-unhooking coil spring according to claim 1, characterized in that: The outer diameter end of the coil spring (3) is fixedly connected to a bent plate (301), and the bent plate (301) is inserted into the slot (101).

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