Anti-impact mechanism of valve

Abstract

The utility model relates to a valve anti-impact mechanism which comprises a valve body, a blocking mechanism is arranged in the valve body, a switching mechanism is arranged on the left side of the valve body, the blocking mechanism comprises a water inlet pipe, one end of the water inlet pipe penetrates through and extends into the valve body, and the other end of the water inlet pipe penetrates through and extends into the valve body. A water outlet pipe with one end penetrating and extending to the outside of the valve body is fixedly mounted in the valve body, three fixing rings are fixedly mounted on the inner wall of the valve body, a spring shell is fixedly mounted on the left side of the valve body, and a valve rod with one end penetrating and extending to the outside of the spring shell is slidably mounted in the valve body. A mounting ring is fixedly mounted on the outer surface of the valve rod, a cylindrical spring is tightly attached to the outer surface of the valve rod, and two moving rings are fixedly mounted on the outer surface of the valve rod. According to the anti-impact mechanism for the valve, by arranging the blocking mechanism, the purpose of blocking impact waves is achieved, the impact waves are prevented from damaging the valve, and the use requirement of a user is met.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an anti-impact mechanism for valves. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. Valves are control components in fluid conveying systems and have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to the various valves used in extremely complex automatic control systems. In pipelines where the fluid flows too fast, the high pressure when closing and opening the valve not only makes it difficult to open the valve, but also damages the valve body.

[0003] According to the patent with publication number CN216279589U, a pipeline anti-shock valve is proposed. The pipeline anti-shock valve presses down a rotating disk to make a sinking block block a blocking body, so that the blocking body is filled with liquid. The liquid in the blocking body assists in pressing down, so that the valve can be easily operated during operation, achieving the effect of being able to operate easily when the pipeline pressure is high, and solving the problem that the valve cannot be operated when the pressure in the pipeline is high. However, the pipeline anti-shock valve does not have a structure for buffering shock waves, so that the shock wave can easily damage the valve, so a valve anti-shock mechanism is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a valve anti-shock mechanism, which has the advantages of blocking and defusing shock waves, and solves the problem that the pipeline uses an anti-shock valve but has no structure to buffer the shock waves, which makes it easy for shock waves to damage the valve.

[0005] To achieve the above object, the utility model provides the following technical solutions: a valve anti-impact mechanism, comprising a valve body, a blocking mechanism is arranged inside the valve body, and a switch mechanism is arranged on the left side of the valve body;

[0006] The blocking mechanism includes a water inlet pipe, one end of the water inlet pipe passes through and extends to the interior of the valve body, a water outlet pipe with one end passing through and extending to the outside of the valve body is fixedly installed inside the valve body, three fixing rings are fixedly installed on the inner wall of the valve body, a spring shell is fixedly installed on the left side of the valve body, a valve stem with one end passing through and extending to the outside of the spring shell is slidably installed inside the valve body, a mounting ring is fixedly installed on the outer surface of the valve stem, a columnar spring is tightly fitted on the outer surface of the valve stem, and two movable rings are fixedly installed on the outer surface of the valve stem.

[0007] Furthermore, the switch mechanism includes a shell, the right side of the shell is fixedly connected to the left side of the spring shell, three slide bars are fixedly installed between the left and right side walls of the inner cavity of the shell, and movable plates are slidably installed on the outer surfaces of the three slide bars.

[0008] Furthermore, the right side of the cylindrical spring is fixedly connected to the right side wall of the inner cavity of the spring housing, and the left side of the cylindrical spring is fixedly connected to the right side of the mounting ring.

[0009] Furthermore, sealing rings are fixedly installed on both the left and right sides of the movable ring, and the two movable rings and the three fixed rings are distributed at intervals when viewed from the front.

[0010] Furthermore, a threaded rod with one end penetrating through and extending to the outside of the shell is rotatably mounted on the right side wall of the inner cavity of the shell, a threaded hole is opened inside the movable plate, and the outer surface of the threaded rod is threadedly connected to the inner surface of the threaded hole.

[0011] Furthermore, a sealing filler is fixedly installed inside the spring housing, and the inner surface of the sealing filler is sealingly connected to the outer surface of the valve stem.

[0012] Furthermore, a positioning rod having one end penetrating through and extending into the interior of the valve stem is fixedly mounted on the right side wall of the inner cavity of the valve body, and the outer surface of the positioning rod is slidably connected to the inner surface of the valve stem.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The anti-shock mechanism of the valve achieves the purpose of blocking and dissolving the shock wave by providing a blocking mechanism, preventing the shock wave from damaging the valve and meeting the user's needs. By providing a switching mechanism, the valve can be opened and closed, so that the valve can be easily operated and is convenient for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 The utility model structure Figure 1 The right side cross-sectional view of

[0017] Figure 3 It is a left side cross-sectional view of the structural shell of the utility model.

[0018] In the figure: 1. valve body; 2. blocking mechanism; 201. water inlet pipe; 202. water outlet pipe; 203. fixing ring; 204. spring housing; 205. valve stem; 206. mounting ring; 207. cylindrical spring; 208. moving ring; 3. switch mechanism; 301. housing; 302. sliding rod; 303. threaded rod; 304. moving plate; 305. sealing packing; 306. positioning rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a valve anti-impact mechanism includes a valve body 1, a blocking mechanism 2 is arranged inside the valve body 1, a switch mechanism 3 is arranged on the left side of the valve body 1, the blocking mechanism 2 includes an inlet pipe 201, water enters the valve body 1 through the inlet pipe 201, one end of the inlet pipe 201 penetrates and extends to the inside of the valve body 1, a water outlet pipe 202 with one end penetrating and extending to the outside of the valve body 1 is fixedly installed inside the valve body 1, water is discharged from the valve body 1 through the outlet pipe 202, three fixing rings 203 are fixedly installed on the inner wall of the valve body 1, a spring shell 204 is fixedly installed on the left side of the valve body 1, and a valve stem 205 with one end penetrating and extending to the outside of the spring shell 204 is slidably installed inside the valve body 1.

[0021] In this embodiment, a mounting ring 206 is fixedly installed on the outer surface of the valve stem 205, and a cylindrical spring 207 is tightly fitted on the outer surface of the valve stem 205. The right side of the cylindrical spring 207 is fixedly connected to the right side wall of the inner cavity of the spring housing 204, and the left side of the cylindrical spring 207 is fixedly connected to the right side of the mounting ring 206. Two movable rings 208 are fixedly installed on the outer surface of the valve stem 205. The cylindrical spring 207 drives the movable ring 208 to return to its position through the mounting ring 206. Sealing rings are fixedly installed on both sides of the movable ring 208. The two movable rings 208 and the three fixed rings 203 are spaced apart from each other when viewed from the front. The water pressure will squeeze the movable ring 208 to the right, so that the movable ring 208 seals the valve body 1 through the fixed ring 203.

[0022] Specifically, water enters the valve body 1 through the water inlet pipe 201, and the water is discharged from the valve body 1 through the water outlet pipe 202. The shock wave will increase the water pressure of the water inlet pipe 201. When the water pressure of the water inlet pipe 201 is too large, the water pressure will squeeze the movable ring 208 to the right, so that the movable ring 208 seals the valve body 1 through the fixed ring 203, and blocks the shock wave outside the valve body 1, thereby eliminating the destructive force of the shock wave. After the shock wave, the columnar spring 207 drives the movable ring 208 to return to its position through the mounting ring 206, and the valve body 1 returns to its normal working state, preventing the shock wave from damaging the valve and meeting the user's usage requirements.

[0023] In this embodiment, the switch mechanism 3 includes a shell 301, the right side of the shell 301 is fixedly connected to the left side of the spring shell 204, three slide bars 302 are fixedly installed between the left and right side walls of the inner cavity of the shell 301, and the outer surfaces of the three slide bars 302 are slidably installed with moving plates 304, and the moving plates 304 drive the valve stem 205 and the moving ring 208 to be squeezed to the right.

[0024] Among them, a threaded rod 303 with one end penetrating and extending to the outside of the shell 301 is rotatably installed on the right side wall of the inner cavity of the shell 301, and a threaded hole is opened inside the movable plate 304. The outer surface of the threaded rod 303 is threadedly connected with the inner surface of the threaded hole. The threaded rod 303 drives the movable plate 304 to move to the right through the sliding rod 302.

[0025] Among them, a sealing packing 305 is fixedly installed inside the spring shell 204, and the inner surface of the sealing packing 305 is sealed and connected to the outer surface of the valve stem 205. The sealing packing 305 prevents water from seeping into the valve body 1. A positioning rod 306 with one end passing through and extending into the inside of the valve stem 205 is fixedly installed on the right side wall of the inner cavity of the valve body 1. The outer surface of the positioning rod 306 is slidably connected to the inner surface of the valve stem 205. The positioning rod 306 prevents the valve stem 205 from tilting.

[0026] Specifically, the threaded rod 303 is rotated by hand, and the threaded rod 303 drives the movable plate 304 to move to the right through the sliding rod 302. The movable plate 304 drives the valve stem 205 and the movable ring 208 to squeeze to the right to close the valve body 1. The sealing packing 305 prevents water from seeping into the valve body 1, and the positioning rod 306 prevents the valve stem 205 from tilting, so that the valve can be easily operated and convenient for users.

[0027] The working principle of the above embodiment is:

[0028] (1) Water enters the valve body 1 through the water inlet pipe 201 and is discharged from the valve body 1 through the water outlet pipe 202. The shock wave will increase the water pressure of the water inlet pipe 201. When the water pressure of the water inlet pipe 201 is too high, the water pressure will squeeze the movable ring 208 to the right, so that the movable ring 208 seals the valve body 1 through the fixed ring 203, blocking the shock wave outside the valve body 1 and eliminating the destructive force of the shock wave. After the shock wave, the columnar spring 207 drives the movable ring 208 to return to its original position through the mounting ring 206, and the valve body 1 returns to its normal working state.

[0029] (2) The threaded rod 303 is rotated by hand, and the threaded rod 303 drives the movable plate 304 to move rightward through the sliding rod 302. The movable plate 304 drives the valve stem 205 and the movable ring 208 to squeeze rightward to close the valve body 1.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] 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 valve anti-impact mechanism, comprising a valve body (1), characterized in that: A blocking mechanism (2) is arranged inside the valve body (1), and a switch mechanism (3) is arranged on the left side of the valve body (1); The blocking mechanism (2) comprises a water inlet pipe (201), one end of the water inlet pipe (201) passes through and extends to the interior of the valve body (1), a water outlet pipe (202) having one end passing through and extending to the exterior of the valve body (1) is fixedly installed inside the valve body (1), three fixing rings (203) are fixedly installed on the inner wall of the valve body (1), a spring shell (204) is fixedly installed on the left side of the valve body (1), a valve stem (205) having one end passing through and extending to the exterior of the spring shell (204) is slidably installed inside the valve body (1), a mounting ring (206) is fixedly installed on the outer surface of the valve stem (205), a columnar spring (207) is tightly fitted on the outer surface of the valve stem (205), and two movable rings (208) are fixedly installed on the outer surface of the valve stem (205).

2. A valve anti-impact mechanism according to claim 1, characterized in that: The switch mechanism (3) comprises a housing (301), the right side of the housing (301) is fixedly connected to the left side of the spring housing (204), three sliding rods (302) are fixedly installed between the left and right side walls of the inner cavity of the housing (301), and movable plates (304) are slidably installed on the outer surfaces of the three sliding rods (302).

3. A valve anti-impact mechanism according to claim 1, characterized in that: The right side of the columnar spring (207) is fixedly connected to the right side wall of the inner cavity of the spring housing (204), and the left side of the columnar spring (207) is fixedly connected to the right side of the mounting ring (206).

4. A valve anti-impact mechanism according to claim 1, characterized in that: Sealing rings are fixedly installed on both the left and right sides of the movable ring (208), and the two movable rings (208) and the three fixed rings (203) are spaced apart when viewed from the front.

5. The valve anti-impact mechanism according to claim 2, characterized in that: A threaded rod (303) having one end penetrating through and extending to the outside of the shell (301) is rotatably mounted on the right side wall of the inner cavity of the shell (301); a threaded hole is provided inside the movable plate (304); and the outer surface of the threaded rod (303) is threadedly connected to the inner surface of the threaded hole.

6. A valve anti-impact mechanism according to claim 2, characterized in that: A sealing filler (305) is fixedly installed inside the spring housing (204), and the inner surface of the sealing filler (305) is sealingly connected to the outer surface of the valve stem (205).

7. A valve anti-impact mechanism according to claim 2, characterized in that: A positioning rod (306) having one end penetrating through and extending into the interior of the valve stem (205) is fixedly mounted on the right side wall of the inner cavity of the valve body (1), and the outer surface of the positioning rod (306) is slidably connected to the inner surface of the valve stem (205).

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