Long compression stable spring device

Abstract

The utility model relates to the related technical field of spring assembly application, in particular to a long compression stable spring device which comprises a spring body and a supporting mechanism, and the supporting mechanism is arranged in the spring body. According to the long compression stable spring device, through the arrangement of the supporting mechanism, when the spring body is subjected to long compression deformation, the sliding columns and the sleeves slide relative to each other, and the phenomenon that the spring body is unstable during long compression deformation can be avoided through mutual cooperation of the sliding columns and the sleeves; meanwhile, the inner diameter of the first limiting ring is matched with the outer diameter of the sliding column, and the outer diameter of the second limiting ring is matched with the inner diameter of the sleeve, so that the limiting rings slide in the sleeve to prevent the sliding column from being separated from the interior of the sleeve, and the situation that the sleeve is separated from the sliding column to lose the supporting effect on the spring body can be avoided; meanwhile, the sleeve and the sliding column are connected with the two ends of the spring body respectively, installation of the spring body can be achieved, specifications are reduced, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring assembly application related technical field especially, a kind of long compression stable spring device. BACKGROUND

[0002] In the spring assembly application technical field, spring is ingeniously applied in a variety of downhole casing cleaning tools, with its unique elasticity and adaptability to bring variable amount of outer diameter for casing cleaning work, spring mainly plays the role of enhancing cleaning effect and adapting various cleaning outer diameters in casing cleaning tool, however, in some application scenarios requiring long stroke compression and higher stability, traditional spring group installation tends to appear instability phenomenon and installation difficulty problem, such as bending, distortion or lateral deviation, which not only reduces the service life of spring, but also affects the whole device assembly cannot be installed, therefore, there is a particular need for a long compression stable spring device.

[0003] But the existing long compression stable spring device, in the use process, most spring devices tend to appear instability when spring needs to be compressed and deformed, which affects the quality of the device. SUMMARY

[0004] The utility model aims at providing a kind of long compression stable spring device to solve the problem of long compression spring instability and installation difficulty in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of long compression stable spring device, including spring main body and support mechanism, the inside of spring main body is provided with support mechanism;

[0006] The support mechanism includes sleeve, upper fixed block, elastic slot, sliding slot, first limit ring, sliding column, second limit ring and lower fixed block, the inside of spring main body is provided with sleeve, the top of sleeve is fixedly connected with upper fixed block, the surface of sleeve is opened and closed with elastic slot on one side, the inside of sleeve is provided with sliding slot, the bottom of sleeve is fixedly connected with first limit ring, the inside of sleeve is embedded with sliding column, the top of sliding column is fixedly connected with second limit ring, the bottom of sliding column is fixedly connected with lower fixed block.

[0007] Preferably, the spring main body is made of high-strength alloy steel material.

[0008] Preferably, the upper fixed block is fixedly connected with one end of the spring main body, and the lower fixed block is fixedly connected with the other end of the spring main body.

[0009] Preferably, the inner diameter of the first limit ring matches the outer diameter of the sliding column.

[0010] Preferably, the elastic groove is a through groove milled through the inner and outer diameters.

[0011] Preferably, the outer diameter of the second limiting ring is consistent with the inner diameter of the sleeve, and the top end of the second limiting ring is conical.

[0012] Compared with the prior art, the long compression stable spring device has the beneficial effects that: through the setting of the supporting mechanism, the spring body is limited through the mutual sliding movement characteristics of the sleeve and the slide post in the use process, the instability phenomenon such as bending, twisting or lateral deviation of the spring body during long compression deformation can be avoided, the reliability and stability of the spring device are provided, and meanwhile, the sleeve and the slide post are respectively connected with both ends of the spring body, so that the installation of the spring body can be realized, thereby reducing the specifications and reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a side view appearance structure schematic view of the utility model;

[0014] Fig. 2 It is a supporting mechanism structure schematic view of the utility model;

[0015] Fig. 3 It is a supporting mechanism sectional structure schematic view of the utility model.

[0016] In the drawing: 1, spring body; 2, supporting mechanism; 201, sleeve; 202, upper fixed block; 203, elastic groove; 204, sliding groove; 205, first limiting ring; 206, slide post; 207, second limiting ring; 208, lower fixed block. DETAILED DESCRIPTION

[0017] 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 protection scope of the utility model.

[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: a long compression stable spring device, which comprises a spring body 1 and a supporting mechanism 2, and the supporting mechanism 2 is arranged in the spring body 1.

[0019] The supporting mechanism 2 comprises a sleeve 201, an upper fixing block 202, an elastic groove 203, a sliding groove 204, a first limiting ring 205, a sliding column 206, a second limiting ring 207 and a lower fixing block 208, the inside of the spring body 1 is provided with the sleeve 201, the top of the sleeve 201 is fixedly connected with the upper fixing block 202, the surface of the sleeve 201 is opened and closed with the elastic groove 203 on one side, the inside of the sleeve 201 is provided with the sliding groove 204, the bottom of the sleeve 201 is fixedly connected with the first limiting ring 205, the inside of the sleeve 201 is embedded with the sliding column 206, the top of the sliding column 206 is fixedly connected with the second limiting ring 207, and the bottom of the sliding column 206 is fixedly connected with the lower fixing block 208, through the setting of the sleeve 201, the upper fixing block 202, the elastic groove 203, the sliding groove 204, the first limiting ring 205, the sliding column 206, the second limiting ring 207 and the lower fixing block 208, in use, one end of the spring body 1 is fixedly connected with the upper fixing block 202, at the same time, the sleeve 201 is embedded in the inside of the spring body 1, then the other end of the spring body 1 is fixedly connected with the lower fixing block 208, at the same time, the sliding column 206 is embedded in the inside of the spring body 1, and then the second limiting ring 207 is extruded into the inside of the sleeve 201, since the top end of the second limiting ring 207 is conical and the elastic groove 203 is a through groove with a milling inner and outer diameter, the second limiting ring 207 can be extruded in the inside of the sliding groove 204, so as to install and connect the sleeve 201 and the sliding column 206, when the spring body 1 is long-compressed and deformed, since the upper fixing block 202 is fixedly connected with one end of the spring body 1, the lower fixing block 208 is fixedly connected with the other end of the spring body 1, and one end of the sliding column 206 is embedded in the inside of the sleeve 201, the sliding column 206 and the sleeve 201 slide with each other, the sliding column 206 and the sleeve 201 cooperate with each other to avoid instability of the spring body 1, such as bending, twisting or lateral deviation, at the same time, since the inner diameter of the first limiting ring 205 and the outer diameter of the sliding column 206 are consistent in size, and the outer diameter of the second limiting ring 207 and the inner diameter of the sleeve 201 are consistent in size, the second limiting ring 207 slides in the inside of the sleeve 201 to avoid the sliding column 206 from being separated from the inside of the sleeve 201, so as to avoid the sleeve 201 and the sliding column 206 from being separated to lose the supporting effect on the spring body 1.

[0020] Further, the spring body 1 is made of high-strength steel material, and the sleeve 201 is made of spring steel material, since the spring body 1 is made of high-strength steel material, the spring body 1 has good elasticity and fatigue resistance, the lower end of the sleeve 201 is provided with a plurality of elastic grooves 203, so that the sleeve 201 has the characteristics of elastic opening, the inside of the sleeve 201 is provided with a step cooperating with the sliding column 206, during installation, the spring body 1 can be fixed at a compression height, so that the long-compression deformation spring can be installed and long-compressed, thereby reducing the specifications and cost.

[0021] Further, the upper fixed block 202 is fixedly connected with one end of the spring body 1, and the lower fixed block 208 is fixedly connected with the other end of the spring body 1. Through the arrangement of the upper fixed block 202 and the lower fixed block 208, in use, the upper fixed block 202 is fixedly connected with one end of the spring body 1, and the lower fixed block 208 is fixedly connected with the other end of the spring body 1, so that the sleeve 201 and the sliding column 206 can be fixed in the interior of the spring body 1.

[0022] Further, the inner diameter of the first limiting ring 205 is consistent with the outer diameter of the sliding column 206. Through the arrangement of the first limiting ring 205, in use, since the inner diameter of the first limiting ring 205 is consistent with the outer diameter of the sliding column 206, and the outer diameter of the second limiting ring 207 is consistent with the inner diameter of the sleeve 201, the first limiting ring 205 and the second limiting ring 207 can make one end of the sliding column 206 slide in the interior of the sleeve 201, avoiding the sliding column 206 from being separated from the interior of the sleeve 201.

[0023] Further, the elastic groove 203 is a through groove with inner and outer diameters. Through the arrangement of the elastic groove 203, the elastic groove 203 can facilitate the sliding column 206 and the second limiting ring 207 to be embedded in the interior of the sliding groove 204.

[0024] Further, the outer diameter of the second limiting ring 207 is consistent with the inner diameter of the sleeve 201, and the top end of the second limiting ring 207 is conical. Through the arrangement of the second limiting ring 207, in use, the top end of the second limiting ring 207 being conical can be installed in the interior of the sliding groove 204.

[0025] Working principle: one end of the spring body 1 is fixedly connected with the upper fixed block 202, meanwhile the sleeve 201 is embedded in the inside of the spring body 1, then the other end of the spring body 1 is fixedly connected with the lower fixed block 208, meanwhile the slide column 206 is embedded in the inside of the spring body 1, then the second limiting ring 207 is extruded into the inside of the sleeve 201, since the top end of the second limiting ring 207 is tapered, and the elastic groove 203 is the through groove of the inner and outer diameter milling, thus the second limiting ring 207 can be extruded in the inside of the sliding groove 204, thus the sleeve 201 and the slide column 206 are installed and connected, when the spring body 1 is long compression deformation, since the upper fixed block 202 is fixedly connected with one end of the spring body 1, the lower fixed block 208 is fixedly connected with the other end of the spring body 1, and one end of the slide column 206 is embedded in the inside of the sleeve 201, thus the slide column 206 and the sleeve 201 slide each other, the slide column 206 and the sleeve 201 cooperate with each other to avoid the instability phenomenon of the spring body 1 when long compression deformation, such as bending, distortion or lateral deviation, meanwhile since the inner diameter of the first limiting ring 205 and the outer diameter of the slide column 206 size match, the outer diameter of the second limiting ring 207 and the inner diameter of the sleeve 201 match, thus the second limiting ring 207 slides in the inside of the sleeve 201 to avoid the slide column 206 from the inside of the sleeve 201, thus the sleeve 201 and the slide column 206 can avoid disengagement to lose the supporting effect of the spring body 1.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, replacements and variations of the embodiments can be made by those skilled in the art without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A long compression stabilizing spring device comprising a spring body (1) and a support mechanism (2), characterized in that: The inside of the spring body (1) is provided with a supporting mechanism (2), which comprises a sleeve (201) and a sliding column (206); The supporting mechanism (2) comprises a sleeve (201), an upper fixed block (202), an elastic groove (203), a sliding groove (204), a first limiting ring (205), a sliding column (206), a second limiting ring (207) and a lower fixed block (208); The inside of the spring body (1) is provided with a sleeve (201), the top of the sleeve (201) is fixedly connected with an upper fixed block (202), the surface of the sleeve (201) is opened and closed with an elastic groove (203), the inside of the sleeve (201) is provided with a sliding groove (204), the bottom of the sleeve (201) is fixedly connected with a first limiting ring (205), the inside of the sleeve (201) is embedded with a sliding column (206), the top of the sliding column (206) is fixedly connected with a second limiting ring (207), and the bottom of the sliding column (206) is fixedly connected with a lower fixed block (208).

2. A long compression stabilizing spring device according to claim 1, characterized in that: The spring body (1) is made of high-strength alloy steel material.

3. A long compression stabilizing spring device according to claim 1, characterized in that: The upper fixed block (202) is fixedly connected with one end of the spring body (1), and the lower fixed block (208) is fixedly connected with the other end of the spring body (1).

4. A long compression stabilizing spring device according to claim 1, characterized in that: The inner diameter of the first limiting ring (205) is consistent with the outer diameter of the sliding column (206).

5. A long compression stabilizing spring device according to claim 1, wherein: The elastic groove (203) is a through groove with inner and outer diameters.

6. A long compression stabilizing spring device according to claim 1, wherein: The outer diameter of the second limiting ring (207) is consistent with the inner diameter of the sleeve (201), and the top end of the second limiting ring (207) is conical.

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