Protection device for spring cover of hydraulic valve

Abstract

The utility model relates to the technical field of spring cover protection assemblies, and discloses a hydraulic valve spring cover protection device which comprises a hydraulic valve body, a spring cover body is arranged on the top of the hydraulic valve body, a spring cover protection mechanism is arranged on the outer wall of the hydraulic valve body, and the spring cover protection mechanism comprises a fixing ring seat. The fixing ring base is fixedly connected to the outer wall of the hydraulic valve body in a sleeving mode, a limiting sleeve is fixedly installed at the top of the fixing ring base, and inserting legs are detachably connected to the inner wall of the limiting sleeve. According to the utility model, through the cooperation of the second elastic piece and the sliding rod, a vertically downward force can be integrally applied to the circular pressure applying pad and the expanded pressure applying pad, the function of limiting and protecting the spring cover main body is realized, and meanwhile, through the distribution design of the rubber blocks, the force applied to the spring cover main body can be buffered and dispersed, so that the service life of the spring cover main body is prolonged. The problem that the spring cover body is prone to being pressed and damaged in the long-time using process is solved, and the safety of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring cover protection components, in particular to a spring cover protection device for a hydraulic valve. Background Art

[0002] The spring cover is one of the important components of the hydraulic valve. There are many types of hydraulic valves on the market, but most of the hydraulic valves are relatively simple in design and basically do not have the spring cover protection function. During the use of the hydraulic valve, the spring cover is prone to loosening, affecting the normal operation of the hydraulic valve, so a spring cover protection device is required.

[0003] A Chinese patent discloses a spring cover protection device for a hydraulic valve, with the announcement number CN211039207U. The technical solution disclosed in the patent document is as follows: it includes a hydraulic valve body, a spring cover is arranged on the top of the hydraulic valve body, support frames are arranged on the left and right sides of the hydraulic valve body, a fixing frame is arranged on the top of the support frame, a fixing device is arranged on the right end of the fixing frame, a top block is arranged on the top of the fixing frame, a first connecting block is arranged on the top of the top block, a supporting column is arranged on the top of the first connecting block, and a first fixing pin is arranged on the bottom of the support column.

[0004] In order to solve the problem that the existing structure does not have the spring cover protection function, the existing technology adopts the method of designing stress springs and moving rods and other components to deal with it, but the protection effect is still poor. The structure uses a limit block to press down and support the spring cover for protection. The limit block is small in size, and the contact area between the limit block and the top of the spring cover is also small. When the spring cover is in use, it will be subjected to a large pressure at a single point for a long time, which can easily cause the spring cover to be squeezed and damaged by the limit block, affecting the service life of the spring cover. Utility Model Content

[0005] The utility model aims to provide a protective device for a hydraulic valve spring cover, which solves the problem in the prior art that the spring cover is easily squeezed and damaged by a limiting block when used for a long time.

[0006] The utility model provides the following technical solutions: a spring cover protection device for a hydraulic valve, comprising a hydraulic valve body, a spring cover main body is arranged on the top of the hydraulic valve body, a spring cover protection mechanism is arranged on the outer wall of the hydraulic valve body, the spring cover protection mechanism comprises a fixed ring seat, the fixed ring seat is fixedly sleeved on the outer wall of the hydraulic valve body, a limiting sleeve is fixedly installed on the top of the fixed ring seat, a plug-in leg is detachably connected to the inner wall of the limiting sleeve, a support strip is fixedly connected to one end of the plug-in leg away from the limiting sleeve, a second elastic member is fixedly connected to the bottom of the support strip, and the second elastic member A circular pressure pad is fixedly connected to the bottom, an extended pressure pad is fixedly connected to the outer wall of the circular pressure pad, a sliding rod is welded to the top of the extended pressure pad, the outer wall of the sliding rod is slidably connected to the inner wall of the support bar, the bottoms of the circular pressure pad and the extended pressure pad are both provided with grooves, the top of the inner wall of the groove is fixedly connected with a rubber block, the bottom of the rubber block is located below the circular pressure pad and the extended pressure pad, the bottom of the rubber block is movably connected to the top of the spring cover body, and through the design of the rubber block, the spring cover body can be protected by dispersed force, thereby fully ensuring the safety of the spring cover body.

[0007] As a preferred embodiment of the above technical solution, a connecting groove is provided on the outer wall of the plug-in leg, a sliding plate is slidably connected to the inner wall of the limiting sleeve, a connecting tooth is fixedly connected to the side of the sliding plate, and the connecting tooth is movably inserted in the inner cavity of the connecting groove.

[0008] As a preferred embodiment of the above technical solution, the sliding plate is fixedly connected to a sliding arm on one side away from the connecting tooth, and the outer wall of the sliding arm is slidably connected to the inner wall of the limiting sleeve. A first elastic member is fixedly installed on the outer wall of the sliding arm, and one end of the first elastic member away from the sliding arm is fixedly connected to the outer wall of the limiting sleeve. Through the design of the first elastic member, the connecting tooth can be driven to be inserted into the connecting groove to position the plug-in leg.

[0009] As a preferred embodiment of the above technical solution, an annular groove is provided on the top of the fixed ring seat, a positioning bolt is threadedly connected to the outer wall of the fixed ring seat, and a plug-in ring is movably inserted in the inner cavity of the annular groove. Through the cooperation of the annular groove, the plug-in ring and the positioning bolt, it is convenient for users to disassemble and assemble the alloy cover as a whole.

[0010] As a preferred embodiment of the above technical solution, rubber rings are fixedly connected to the outer wall and the inner wall of the plug-in ring, the two rubber rings are at different heights, the threaded end of the positioning bolt is movably connected to the outer wall of the plug-in ring, and the rubber ring is used to seal and protect the spring cover body.

[0011] As a preferred embodiment of the above technical solution, the top of the plug-in ring is fixedly connected with a lifting ring, and the top of the lifting ring is fixedly connected with an alloy cover. Through the cooperation of the lifting ring and the alloy cover, the spring cover body can be protected against pressure.

[0012] As a preferred embodiment of the above technical solution, a rubber sleeve is fixedly sleeved on the outer wall of the alloy cover, a through hole is opened at the bottom of the rubber sleeve, and a rubber top cover located above the rubber sleeve is fixedly connected to the top of the alloy cover. Through the cooperation of the rubber sleeve and the rubber top cover, the alloy cover can be protected from force buffering.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can apply a vertical downward force to the circular pressure pad and the extended pressure pad as a whole through the cooperation of the second elastic member and the sliding rod, thereby realizing the function of limiting the spring cover body. At the same time, through the distribution design of the rubber blocks, the force applied to the spring cover body can be buffered and dispersed, avoiding the problem of the spring cover body being subjected to large force at a single point and the problem of the spring cover body being easily damaged by pressure during long-term use, thereby improving the safety of the present structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the bottom structure of the support bar of the utility model;

[0017] Figure 3 It is a schematic diagram of the separation structure of the sliding plate as a whole and the limiting sleeve of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the lifting ring of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the rubber sleeve of the utility model.

[0020] In the figure: 1. hydraulic valve body; 11. spring cover body; 2. spring cover protection mechanism; 21. fixing ring seat; 211. annular groove; 212. positioning bolt; 22. limiting sleeve; 221. connecting groove; 222. sliding plate; 223. connecting tooth; 224. sliding arm; 225. first elastic member; 23. plug-in leg; 24. support bar; 25. second elastic member; 26. circular pressure pad; 27. extended pressure pad; 271. groove; 272. rubber block; 28. sliding rod; 29. ​​plug-in ring; 291. rubber ring; 292. lifting ring; 293. alloy cover; 294. rubber sleeve; 295. through hole; 296. rubber top cover. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a spring cover protection device for a hydraulic valve, comprising a hydraulic valve body 1, a spring cover main body 11 is arranged on the top of the hydraulic valve body 1, a spring cover protection mechanism 2 is arranged on the outer wall of the hydraulic valve body 1, the spring cover protection mechanism 2 comprises a fixed ring seat 21, the fixed ring seat 21 is fixedly sleeved on the outer wall of the hydraulic valve body 1, a limiting sleeve 22 is fixedly installed on the top of the fixed ring seat 21, a plug-in leg 23 is detachably connected to the inner wall of the limiting sleeve 22, a support bar 24 is fixedly connected to the end of the plug-in leg 23 away from the limiting sleeve 22, a second elastic member 25 is fixedly connected to the bottom of the support bar 24, a circular pressure pad 26 is fixedly connected to the bottom of the second elastic member 25, an extended pressure pad 27 is fixedly connected to the outer wall of the circular pressure pad 26, and the top of the extended pressure pad 27 A sliding rod 28 is welded on the part, and the outer wall of the sliding rod 28 is slidably connected to the inner wall of the support bar 24. A groove 271 is provided at the bottom of the circular pressure pad 26 and the extended pressure pad 27. A rubber block 272 is fixedly connected to the top of the inner wall of the groove 271. The bottom of the rubber block 272 is located below the circular pressure pad 26 and the extended pressure pad 27. The bottom of the rubber block 272 is movably connected to the top of the spring cover body 11, and the plug-in leg 23 is plugged into the inside of the limiting sleeve 22. At the same time, the second elastic member 25 and the sliding rod 28 apply a vertical downward force to the circular pressure pad 26 and the extended pressure pad 27 as a whole, so as to limit the spring cover body 11. The distribution design of the rubber block 272 can buffer and disperse the force applied to the spring cover body 11, thereby fully ensuring the safety of the spring cover body 11.

[0023] As an implementation method in this embodiment, Figure 3As shown, a connecting groove 221 is provided on the outer wall of the plug-in leg 23, a sliding plate 222 is slidably connected to the inner wall of the limiting sleeve 22, a connecting tooth 223 is fixedly connected to the side of the sliding plate 222, and the connecting tooth 223 is movably plugged into the inner cavity of the connecting groove 221, and a sliding arm 224 is fixedly connected to the side of the sliding plate 222 away from the connecting tooth 223, and the outer wall of the sliding arm 224 is slidably connected to the inner wall of the limiting sleeve 22, and a first elastic member 225 is fixedly installed on the outer wall of the sliding arm 224, and the first elastic member 225 is away from the sliding arm 2 One end of 24 is fixedly connected to the outer wall of the limiting sleeve 22, and the plug-in leg 23 is plugged into the limiting sleeve 22. The plug-in leg 23 will squeeze the connecting tooth 223, causing the connecting tooth 223, the sliding plate 222 and the sliding arm 224 to slide on the inner wall of the limiting sleeve 22, and at the same time compress the first elastic member 225. When the plug-in leg 23 is fully plugged into place, the reset elastic force of the first elastic member 225 can drive the connecting tooth 223 to be plugged into the inside of the connecting groove 221, thereby completing the fixing of the plug-in leg 23 and facilitating user use.

[0024] As an implementation method in this embodiment, Figure 4 and Figure 5 As shown, an annular groove 211 is provided on the top of the fixing ring seat 21, a positioning bolt 212 is threadedly connected to the outer wall of the fixing ring seat 21, a plug-in ring 29 is movably inserted in the inner cavity of the annular groove 211, and a rubber ring 291 is fixedly connected to the outer wall and the inner wall of the plug-in ring 29, and the two rubber rings 291 are at different heights. The threaded end of the positioning bolt 212 is movably connected to the outer wall of the plug-in ring 29, and a lifting ring 292 is fixedly connected to the top of the plug-in ring 29, and an alloy cover 293 is fixedly connected to the top of the lifting ring 292, and a rubber sleeve 294 is fixedly sleeved on the outer wall of the alloy cover 293. The rubber sleeve 294 is fixedly sleeved on the outer wall of the alloy cover 293. A through hole 295 is provided at the bottom of 94, and a rubber top cover 296 located above the rubber sleeve 294 is fixedly connected to the top of the alloy cover 293. The plug-in ring 29 is plugged into the annular groove 211, and then the positioning bolt 212 is tightened to fix the plug-in ring 29. Through the cooperation of the lifting ring 292 and the alloy cover 293, the spring cover body 11 can be protected against impact. Through the design of the rubber ring 291, the spring cover body 11 can be sealed and protected. Through the cooperation of the rubber sleeve 294 and the rubber top cover 296, the impact on the alloy cover 293 can be buffered, thereby further increasing the protection effect.

[0025] Working principle: The plug-in leg 23 is inserted into the limiting sleeve 22, and the connecting tooth 223 is driven to be inserted into the connecting groove 221 through the reset elastic force of the first elastic member 225 to fix the plug-in leg 23. At the same time, the second elastic member 25 and the sliding rod 28 apply a vertical downward force to the circular pressure pad 26 and the extended pressure pad 27 as a whole to limit the spring cover body 11. The rubber block 272 buffers and disperses the force applied to the spring cover body 11 to ensure the safety of the spring cover body 11.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A hydraulic valve spring cover protection device, comprising a hydraulic valve body (1), wherein a spring cover body (11) is arranged on the top of the hydraulic valve body (1), Features: A spring cover protection mechanism (2) is arranged on the outer wall of the hydraulic valve body (1), and the spring cover protection mechanism (2) comprises a fixed ring seat (21), the fixed ring seat (21) is fixedly sleeved on the outer wall of the hydraulic valve body (1), a limit sleeve (22) is fixedly installed on the top of the fixed ring seat (21), a plug-in leg (23) is detachably connected to the inner wall of the limit sleeve (22), one end of the plug-in leg (23) away from the limit sleeve (22) is fixedly connected to a support bar (24), the bottom of the support bar (24) is fixedly connected to a second elastic member (25), and the bottom of the second elastic member (25) is fixedly connected to a circular pressure pad (26) ), an extended pressure pad (27) is fixedly connected to the outer wall of the circular pressure pad (26), a sliding rod (28) is welded to the top of the extended pressure pad (27), the outer wall of the sliding rod (28) is slidably connected to the inner wall of the support bar (24), the bottom of the circular pressure pad (26) and the extended pressure pad (27) are both provided with a groove (271), the top of the inner wall of the groove (271) is fixedly connected to a rubber block (272), the bottom of the rubber block (272) is located below the circular pressure pad (26) and the extended pressure pad (27), and the bottom of the rubber block (272) is movably connected to the top of the spring cover body (11).

2. A hydraulic valve spring cover protection device according to claim 1, Features: A connecting groove (221) is provided on the outer wall of the plug-in leg (23); a sliding plate (222) is slidably connected to the inner wall of the limiting sleeve (22); a connecting tooth (223) is fixedly connected to the side of the sliding plate (222); and the connecting tooth (223) is movably plugged into the inner cavity of the connecting groove (221).

3. A hydraulic valve spring cover protection device according to claim 2, Features: The side of the sliding plate (222) away from the connecting tooth (223) is fixedly connected to the sliding arm (224); the outer wall of the sliding arm (224) is slidably connected to the inner wall of the limiting sleeve (22); a first elastic member (225) is fixedly mounted on the outer wall of the sliding arm (224); one end of the first elastic member (225) away from the sliding arm (224) is fixedly connected to the outer wall of the limiting sleeve (22).

4. A hydraulic valve spring cover protection device according to claim 1, Features: The top of the fixed ring seat (21) is provided with an annular groove (211), the outer wall of the fixed ring seat (21) is threadedly connected with a positioning bolt (212), and the inner cavity of the annular groove (211) is movably plugged with an insert ring (29).

5. A hydraulic valve spring cover protection device according to claim 4, Features: The outer wall and the inner wall of the plug-in ring (29) are both fixedly connected with a rubber ring (291), the two rubber rings (291) are located at different heights, and the threaded end of the positioning bolt (212) is movably connected to the outer wall of the plug-in ring (29).

6. A hydraulic valve spring cover protection device according to claim 5, Features: The top of the plug-in ring (29) is fixedly connected to a lifting ring (292), and the top of the lifting ring (292) is fixedly connected to an alloy cover (293).

7. A hydraulic valve spring cover protection device according to claim 6, Features: A rubber sleeve (294) is fixedly sleeved on the outer wall of the alloy cover (293), a through hole (295) is opened at the bottom of the rubber sleeve (294), and a rubber top cover (296) located above the rubber sleeve (294) is fixedly connected to the top of the alloy cover (293).

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