Spring with overload limiting function

Abstract

The utility model discloses a spring with an overload limit function, which relates to the technical field of springs and comprises a spring body, a mounting mechanism and a limit mechanism, the mounting mechanism comprises a mounting seat, a limit seat is mounted on the inner side of the mounting seat, and a gap between the mounting seat and the limit seat is movably connected with one end of the spring body. The limiting mechanism comprises two guide rods, the two guide rods are arranged at the two ends of the opposite sides of the two installation bases respectively, the outer sides of the two guide rods are movably sleeved with limiting plates, a plurality of adjusting holes are formed in the outer wall of one guide rod, and a fastening pin is arranged between the inner wall of each limiting plate and the adjacent adjusting hole. The spring main body can be stably mounted through the mounting base and the limiting base, the limiting plate moves on the outer side of the guide rod and is fixed through the fastening pin, the compression degree of the spring main body can be adjusted, and the situation that the spring is overloaded can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of springs, in particular to a spring with an overload limiting function. Background Art

[0002] A spring is a mechanical part that utilizes elasticity. A part made of elastic material deforms under the action of an external force and returns to its original shape after the external force is removed, and such a part is also called a "spring". Generally made of spring steel, springs are of complex and diverse types. Classified by shape, there are mainly helical springs, scroll springs, leaf springs, special-shaped springs, etc.

[0003] The prior art has the following deficiencies: During the use of existing springs, it is impossible to conveniently adjust their compression degree as needed, so that the springs are compressed to the maximum extent. After long-term use, the springs are overloaded, which will shorten the service life of the springs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spring with an overload limiting function. The spring body can be stably installed through the mounting seat and the limiting seat. The limiting plate moves outside the guide rod and is fixed by a fastening pin, so that the compression degree of the spring body can be adjusted, and the overload of the spring can be avoided, so as to solve the above deficiencies in the technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solution: A spring with an overload limiting function, including a spring body, further including:

[0006] Mounting mechanisms, there are two of them, respectively arranged at the top and bottom of the spring body, and used for installing and fixing the spring body;

[0007] Limiting mechanisms, arranged between the two mounting mechanisms and located outside the spring body, and used for adjusting and limiting the compression degree of the spring body;

[0008] The mounting mechanism includes a mounting seat, and a limiting seat is fixedly installed inside the mounting seat. The gap between the mounting seat and the limiting seat is movably connected to one end of the spring body;

[0009] The limiting mechanism includes two guide rods, the two guide rods are respectively arranged at both ends of the opposite sides of the two mounting seats, a limiting plate is movably sleeved outside the two guide rods, a plurality of adjustment holes are opened on the outer wall of one of the guide rods, and a fastening pin is arranged between the inner wall of the limiting plate and the adjacent adjustment hole.

[0010] Preferably, the outer inner wall of the mounting seat is annularly threaded and inserted with connecting bolts at equal intervals, and mounting holes are opened on both inner walls of the mounting seat.

[0011] Preferably, the inner walls of two opposite installation holes are respectively movably connected to the top and bottom outer walls of adjacent guide rods, and the top of the guide rod penetrates through the installation hole at the top and a fastening nut is threadedly sleeved on the outer wall.

[0012] Preferably, a plurality of the adjustment holes are vertically arranged at equal intervals, a fixing hole is formed in the outer wall of one end of the limiting plate, and the diameter dimension of the fixing hole is the same as the diameter dimension of the adjustment hole.

[0013] Preferably, the inner wall of the fixing hole is threadedly connected to the outer wall of one end of the fastening pin, and the end of the fastening pin away from the fixing hole is threadedly connected to the inner wall of the adjacent adjustment hole.

[0014] Preferably, the inner diameter dimension of the limiting plate is the same as the inner diameter dimension of the mounting seat, and the outer diameter dimension of the limiting plate is the same as the outer diameter dimension of the vertical part of the mounting seat.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. The spring body can be conveniently installed and fixed through the mounting seat and the limiting seat, and at the same time, the situation of the end face of the spring body moving can be avoided. By changing the corresponding relationship between the fixing hole and the adjustment hole, the height of the limiting plate outside the guide rod can be adjusted. Using the fastening pin to penetrate through the fixing hole and threadedly connect with the inner wall of the adjacent adjustment hole can fix the adjusted limiting plate, and then the distance between the top mounting seat and the limiting plate can be adjusted, and then the compression degree of the spring body can be adjusted. The compression amount of the spring body can be conveniently adjusted according to needs, the situation of the spring body being overloaded can be avoided, and the service life of the spring can be prolonged;

[0017] 2. The movement of the top mounting seat can be limited by two guide rods, so that the top mounting seat remains stable during the movement, and then the spring body remains stable during the compression process, and the situation of its deviation can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 It is a front vertical sectional view of the present utility model.

[0021] Figure 3 For the present utility model Figure 2 is an enlarged view of part A.

[0022] Figure 4 is a three-dimensional structural diagram of the installation mechanism of the present utility model.

[0023] Figure 5 is an exploded three-dimensional structural diagram of the limiting mechanism of the present utility model.

[0024] Explanation of reference numerals:

[0025] 1. Spring body;

[0026] 2. Installation mechanism; 201. Installation seat; 202. Limiting seat; 203. Connecting bolt; 204. Installation hole;

[0027] 3. Limiting mechanism; 301. Guide rod; 302. Fastening nut; 303. Adjusting hole; 304. Limiting plate; 305. Fixed hole; 306. Fastening pin. Detailed implementation manners

[0028] The present utility model provides a spring with an overload limiting function as Figure 1 shown, including a spring body 1, and further including:

[0029] Installation mechanisms 2, two of them are provided, and are respectively arranged at the top and bottom of the spring body 1 for installing and fixing the spring body 1;

[0030] Limiting mechanism 3, which is arranged between the two installation mechanisms 2 and on the outer side of the spring body 1 for adjusting and limiting the compression degree of the spring body 1.

[0031] For the convenient installation of the spring body 1, as Figure 1-2 and Figure 4 shown, the installation mechanism 2 includes an installation seat 201, a limiting seat 202 is fixedly installed inside the installation seat 201, the gap between the installation seat 201 and the limiting seat 202 is movably connected to one end of the spring body 1, and the outer side of one end of the spring body 1 can be clamped through the installation seat 201 and the limiting seat 202, so that the spring body 1 remains stable inside the installation seat 201.

[0032] For the convenient adjustment of the compression amount of the spring body 1, as Figure 1-3 and Figure 5As shown, the limiting mechanism 3 includes two guide rods 301, which are respectively arranged at both ends of the opposite sides of the two mounting seats 201. A limiting plate 304 is movably sleeved on the outer sides of the two guide rods 301. A plurality of adjustment holes 303 are formed on the outer wall of one of the guide rods 301. A fastening pin 306 is arranged between the inner wall of the limiting plate 304 and the adjacent adjustment hole 303. By changing the position of the limiting plate 304 on the outer side of the guide rod 301, the distance between the limiting plate 304 and the top mounting seat 201 can be adjusted, and thus the compression amount of the spring body 1 can be adjusted.

[0033] In order to enable the limiting mechanism 3 to be stably installed on the installation mechanism 2, as Figure 2 and Figure 4-5 shown, connecting bolts 203 are inserted into the outer inner wall of the mounting seat 201 at equal intervals in a circular pattern. Mounting holes 204 are formed in the inner walls at both ends of the mounting seat 201. The inner walls of the two opposite mounting holes 204 are respectively movably connected to the top and bottom outer walls of the adjacent guide rod 301. The top of the guide rod 301 penetrates through the mounting hole 204 at the top and a fastening nut 302 is threadedly sleeved on the outer wall. The two opposite mounting holes 204 can mount the adjacent guide rod 301, and the fastening nut 302 can reinforce the guide rod 301.

[0034] In order to keep the limiting plate 304 stable on the outer side of the guide rod 301, as Figure 2-3 and Figure 5 shown, a plurality of adjustment holes 303 are arranged vertically at equal intervals. A fixing hole 305 is formed in the outer wall of one end of the limiting plate 304. The diameter size of the fixing hole 305 is the same as that of the adjustment hole 303. The inner wall of the fixing hole 305 is threadedly connected to the outer wall of one end of the fastening pin 306. The end of the fastening pin 306 away from the fixing hole 305 is threadedly connected to the inner wall of the adjacent adjustment hole 303. The fastening pin 306 penetrating through the fixing hole 305 and threadedly connected to the inner wall of the adjacent adjustment hole 303 can fix the limiting plate 304 to keep it stable on the outer side of the guide rod 301.

[0035] In order to enable the limiting plate 304 to stably support the top mounting seat 201, as Figure 2 shown, the inner diameter size of the limiting plate 304 is the same as that of the mounting seat 201, and the outer diameter size of the limiting plate 304 is the same as the outer diameter size of the vertical part of the mounting seat 201. The bottom of the top mounting seat 201 can be supported by the limiting plate 304.

[0036] When using the device, insert the top and bottom of the spring body 1 into the inner sides of the two mounting seats 201 respectively, and at the same time make the two limiting seats 202 be located inside the spring body 1. At the same time, make the spring body 1 be movably inserted outside the limiting plate 304, so that the limiting plate 304 is located between the two mounting seats 201. Then use the two guide rods 301 to move upward through the mounting holes 204 on the inner walls at both ends of the bottom mounting seat 201, so that the two guide rods 301 can respectively penetrate through the inner walls at both ends of the limiting plate 304, and make the adjustment holes 303 and the fixing holes 305 face the same direction. Then pass the tops of the two guide rods 301 through the mounting holes 204 on the inner walls at both ends of the top mounting seat 201, and then use the fastening nuts 302 to sleeve on the outer sides of the tops of the guide rods 301 to fix them. Furthermore, by adjusting the position of the limiting plate 304, the corresponding relationship between the fixing hole 305 and the adjustment hole 303 is changed. Then use the fastening pin 306 to penetrate through the inner wall of the fixing hole 305 and be threadedly connected with the inner wall of the adjacent adjustment hole 303, so as to fix the adjusted limiting plate 304. By adjusting the limiting plate 304, the distance between it and the top mounting seat 201 can be adjusted. Furthermore, the downward movement distance of the top mounting seat 201 when it is under pressure can be adjusted, the compression amount of the spring body 1 can be adjusted, and thus the compression amount of the spring body 1 can be conveniently adjusted according to requirements. It can avoid the spring body 1 being compressed to the maximum extent each time, and can avoid the situation that the spring body 1 is overloaded, and can extend the service life of the spring body 1. This embodiment specifically solves the problem in the prior art that the compression amount of the spring cannot be conveniently adjusted according to requirements, so that the spring is prone to overload and the service life is shortened.

[0037] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A spring with an overload limiting function, comprising a spring body (1), characterized in that: Also includes: Two mounting mechanisms (2) are provided, which are respectively arranged at the top and bottom of the spring body (1) and are used to install and fix the spring body (1); A limiting mechanism (3) is arranged between the two mounting mechanisms (2) and located outside the spring body (1), and is used to adjust and limit the degree of compression of the spring body (1); The mounting mechanism (2) comprises a mounting seat (201), a limiting seat (202) is fixedly mounted on the inner side of the mounting seat (201), and a gap between the mounting seat (201) and the limiting seat (202) is movably connected to one end of the spring body (1); The limiting mechanism (3) comprises two guide rods (301), the two guide rods (301) are respectively arranged at two ends of opposite sides of two mounting seats (201), and the outer sides of the two guide rods (301) are movably sleeved with limiting plates (304), and the outer wall of one of the guide rods (301) is provided with a plurality of adjustment holes (303), and a fastening pin (306) is provided between the inner wall of the limiting plate (304) and the adjacent adjustment holes (303).

2. The spring with overload limiting function according to claim 1, characterized in that: The outer inner wall of the mounting seat (201) is provided with connecting bolts (203) inserted into annular threads at equal intervals, and the inner walls at both ends of the mounting seat (201) are provided with mounting holes (204).

3. The spring with overload limiting function according to claim 2, characterized in that: The inner walls of the two opposite mounting holes (204) are movably connected to the top and bottom outer walls of the adjacent guide rods (301), the top of the guide rod (301) passes through the top mounting hole (204) and the outer wall is threadedly sleeved with a fastening nut (302).

4. The spring with overload limiting function according to claim 1, characterized in that: The plurality of adjusting holes (303) are arranged vertically at equal intervals, and a fixing hole (305) is provided on the outer wall of one end of the limiting plate (304). The diameter of the fixing hole (305) is the same as the diameter of the adjusting hole (303).

5. The spring with overload limiting function according to claim 4, characterized in that: The inner wall of the fixing hole (305) is threadedly connected to the outer wall of one end of the fastening pin (306), and the end of the fastening pin (306) away from the fixing hole (305) is threadedly connected to the inner wall of the adjacent adjustment hole (303).

6. The spring with overload limiting function according to claim 1, characterized in that: The inner diameter of the limiting plate (304) is the same as the inner diameter of the mounting seat (201), and the outer diameter of the limiting plate (304) is the same as the outer diameter of the vertical portion of the mounting seat (201).

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