Anti-explosion angle valve with pressure reduction structure

Abstract

The utility model relates to the technical field of angle valves, and discloses an explosion-proof angle valve with a pressure reduction structure, which comprises a valve body, a water outlet pipe is arranged on the outer wall of the valve body, a connector is fixedly connected to the outer wall of the water outlet pipe, the pressure reduction structure is arranged in the connector, and the pressure reduction structure comprises a fixing rod. The fixing rod is fixedly installed in the connector, two fixing bases opposite in position are arranged on the two sides of the outer wall of the connector, two butterfly plates are fixedly connected to the outer walls of the two fixing bases, two torsional springs are arranged on the outer wall of the fixing rod, and the two ends of the two torsional springs are connected with the two butterfly plates correspondingly. When the valve is in a normal opening state, the butterfly plate is opened to drain water through the matching of the water pressure of water flow and the torsion of the torsion spring, and when the valve bursts or is damaged, the water pressure resistance is reduced, and the two butterfly plates block the water flow through the support of the torsion spring, so that the water flow is prevented from continuously leaking to cause the waste of water resources.

Description

Technical Field

[0001] The utility model relates to the technical field of angle valves, in particular to an explosion-proof angle valve with a decompression structure. Background Art

[0002] Angle valve is an angle stop valve. Angle valve is similar to ball valve, and its structure and characteristics are modified from ball valve. The difference from ball valve is that the outlet and inlet of angle valve are at a right angle of 90 degrees. Angle valve is also called triangle valve, angle valve, angle valve. This is because the pipe forms a 90-degree angle at the angle valve, so it is called angle valve, angle valve, angle valve. One of the most common accidents when using angle valve is the bursting of valve body.

[0003] For example, Chinese patent "CN220118741U" discloses an explosion-proof angle valve, which proposes: an explosion-proof angle valve, including a valve body, a fastening assembly and a valve bonnet are provided on the valve body, a water inlet is provided on the side of the valve body away from the valve bonnet, and the fastening assembly is sleeved on the outer peripheral side of the water inlet; the fastening assembly includes a tightening ring and a tightening nut, and the tightening nut is threadedly connected with the tightening ring, wherein at least two inclined blocks are fixed on the side of the tightening ring away from the valve bonnet, and the inclined blocks are squeezed to make the inclined blocks approach the center line of the tightening ring and gradually squeeze the water inlet pipe. At this time, a cavity is formed between the tightening ring and the water inlet, and when the valve bursts and leaks, water will enter this cavity and will not leak to the outside, thereby causing damage to external objects. At the same time, when the valve bursts, the sealing of the fastening assembly prevents it from continuing to leak and causing water flow impact to cause the valve to fall.

[0004] It can be seen from the above-mentioned device that although the above-mentioned device provides a device for preventing water from continuing to leak after the valve explodes, the applicant believes that the following defects still exist:

[0005] During daily use of existing angle valves, the valve core is shifted or falls off due to excessive opening and closing times over a long period of time. Water in the pipeline will continue to flow out of the valve outlet, and the water flow can only be stopped after inspection and replacement, resulting in a waste of water resources. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides an explosion-proof angle valve with a decompression structure. The decompression structure is designed so that when the valve core falls off and is damaged, the water outlet can be closed by the change in water pressure to prevent water from continuing to flow out. This solves the problem that in the daily use of the existing angle valve, the valve core position is shifted or falls off due to excessive opening and closing times of the angle valve over a long period of time, and the water flow in the pipeline continues to flow out from the water outlet of the valve, requiring maintenance and replacement to stop the water flow, thereby wasting water resources.

[0008] (II) Technical solution

[0009] To achieve the above object, the utility model provides the following technical solutions: an explosion-proof angle valve with a decompression structure, comprising a valve body, an outlet pipe is provided on the outer wall of the valve body, a connector is fixedly connected to the outer wall of the outlet pipe, the connector is installed inside the pipeline through a threaded engagement provided on the outer wall, and a decompression structure is provided inside the connector;

[0010] The decompression structure includes a fixing rod, which is fixedly installed inside the connecting head. Two fixing bases with opposite positions are arranged on both sides of the outer wall of the connecting head. Two butterfly plates are fixedly connected to the outer walls of the two fixing bases. Two torsion springs are arranged on the outer wall of the fixing rod. The two ends of the two torsion springs are respectively connected to two butterfly plates.

[0011] Preferably, a connecting rod is fixedly connected below the valve body, and the connecting rod is installed inside the water inlet pipe through surface thread engagement.

[0012] Preferably, a handle is movably installed above the valve body, and a valve core assembly is arranged inside the handle.

[0013] Preferably, the valve core assembly comprises a card joint, and the card joint is installed in a card seat inside the handle through surface card teeth engagement.

[0014] Preferably, the outer wall of the clamping joint is fixedly connected to a valve stem, a gasket is movably mounted on the outer wall of the valve stem, a fastening nut is arranged below the gasket, a limiting plate is arranged below the fastening nut, and the limiting plate is attached to the top of the valve body.

[0015] Preferably, a sealing gasket is provided on the outer wall of the limit plate, an inner valve core is fixedly connected to the outer wall of the valve stem, the inner valve core is attached to the inner side of the sealing gasket, a connected water outlet is opened on the outer wall of the inner valve core, and a water inlet is opened below the inner valve core.

[0016] Preferably, an outer valve core is fixedly connected below the limit plate, the outer valve core is attached to the outside of the sealing gasket, the outer valve core is also provided with a water outlet and a water inlet, and the outer valve core is sleeved on the outside of the inner valve core.

[0017] Preferably, a thread is provided on the upper end of the outer wall of the outer valve core, and the outer valve core is installed inside the valve body through threaded engagement.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides an explosion-proof angle valve with a decompression structure, which has the following beneficial effects:

[0020] 1. The explosion-proof angle valve with a decompression structure cooperates with the inner valve core and the outer valve core, so that the inner valve core is rotated by turning the handle during daily use, so that the water outlet and water inlet of the inner valve core overlap with the outer valve core to make the water flow out evenly, thereby ensuring the consistency of water flow and water pressure.

[0021] 2. The explosion-proof angle valve with a decompression structure is provided with a decompression structure. When the valve is normally open, the water pressure of the water flow is adapted to the torsion force of the torsion spring, thereby opening the butterfly plate to release water. When the valve bursts or is damaged, the water pressure is blocked and reduced, and the two butterfly plates supported by the torsion spring block the water flow, thereby preventing the water flow from continuing to leak and causing waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0024] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the decompression structure of the utility model;

[0026] Figure 5 It is a schematic diagram of the overall cross section of the utility model.

[0027] The numbers in the figure are:

[0028] 1. Valve body; 11. Connecting rod; 12. Water outlet pipe; 13. Connecting head; 14. Handle; 2. Valve core assembly; 21. Card joint; 22. Valve stem; 23. Gasket; 24. Fastening nut; 25. Limit plate; 26. Sealing gasket; 27. Inner valve core; 28. Water outlet; 29. ​​Water inlet; 210. Outer valve core; 3. Pressure relief structure; 31. Fixed rod; 32. Fixed base; 33. Butterfly plate; 34. Torsion spring. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 A explosion-proof angle valve with a decompression structure comprises a valve body 1, an outer wall of the valve body 1 is provided with an outlet pipe 12, an outer wall of the outlet pipe 12 is fixedly connected with a connector 13, the connector 13 is installed inside the pipe through a threaded engagement arranged on the outer wall, a decompression structure 3 is arranged inside the connector 13, a connecting rod 11 is fixedly connected below the valve body 1, the connecting rod 11 is installed inside the water inlet pipe through a surface threaded engagement, a handle 14 is movably installed above the valve body 1, a valve core assembly 2 is arranged inside the handle 14.

[0031] See also Figure 2 , Figure 3 , Figure 5 The valve core assembly 2 includes a card joint 21, which is installed in the internal card seat of the handle 14 through surface card teeth engagement. This card tooth engagement design enhances the connection stability between the joint 21 and the handle 14. The outer wall of the card joint 21 is fixedly connected to the valve stem 22, and a gasket 23 is movably installed on the outer wall of the valve stem 22. The function of the gasket 23 is to increase the sealing between the valve stem 22 and the external environment to prevent fluid leakage. A fastening nut 24 is arranged below the gasket 23, and a limit plate 25 is arranged below the fastening nut 24. The limit plate 25 is attached to the top of the valve body 1, and a sealing gasket 26 is arranged on the outer wall of the limit plate 25. The outer wall of the valve stem 22 is fixedly connected An inner valve core 27 is connected, and the inner valve core 27 fits the inner side of the sealing gasket 26. This design can increase the sealing between the inner valve core 27 and the sealing gasket 26 to further prevent fluid leakage. A connected water outlet 28 is provided on the outer wall of the inner valve core 27, and a water inlet 29 is provided below the inner valve core 27. An outer valve core 210 is fixedly connected to the lower side of the limit plate 25, and the outer valve core 210 fits the outer side of the sealing gasket 26. The outer valve core 210 is also provided with a water outlet 28 and a water inlet 29. The outer valve core 210 is sleeved on the outside of the inner valve core 27, and a thread is provided on the upper end of the outer wall of the outer valve core 210. The outer valve core 210 is installed inside the valve body 1 through threaded engagement.

[0032] See also Figure 2-4The pressure reducing structure 3 includes a fixing rod 31, which is fixedly installed inside the connector 13. Two fixing bases 32 with opposite positions are arranged on both sides of the outer wall of the connector 13. Two butterfly plates 33 are fixedly connected to the outer walls of the two fixing bases 32. Two fixing bases 32 with opposite positions are arranged on both sides of the outer wall of the connector 13. Two butterfly plates 33 are fixedly connected to the outer walls of the two fixing bases 32. The design of the butterfly plates 33 can be adjusted accordingly according to the pressure of the fluid, so as to play a role in pressure reduction. Two torsion springs 34 are arranged on the outer wall of the fixing rod 31. The two ends of the two torsion springs 34 are respectively connected to the two butterfly plates 33. The function of the torsion springs 34 is to provide a certain elastic force so that the butterfly plates 33 can be appropriately deformed under the pressure of the fluid, so as to better adjust the pressure.

[0033] Working principle: First, the angle valve is installed and fixed by the connecting rod 11 and the connecting head 13. After the installation is completed, the opening and closing of the angle valve can be controlled by turning the handle 14. When the handle 14 is turned, the handle 14 drives the valve stem 22 to rotate through the clamping joint 21, and the valve stem 22 drives the inner valve core 27 connected below to rotate. Since the outer valve core 210 sleeved on the outer side of the inner valve core 27 is fixedly installed, when the inner valve core 27 rotates, the water outlet 28 of the inner valve core 27 is aligned with the water outlet of the outer valve core 210, and the water inlet 28 below the inner valve core 27 is aligned with the water outlet of the outer valve core 210. 9 is connected to the water inlet of the outer valve core 210, and the whole is in a connected state. At this time, water flows into the valve body 1 through the water inlet 29 below and is discharged from the outlet pipe 12 through the water outlet 29. Conversely, the water inlet 29 and the water outlet 28 of the inner valve core can be rotated again by turning the handle 14 again, so that the valve core body on both sides of the water inlet 29 and the water outlet 29 blocks the water inlet 29 and the water outlet 28 of the outer valve core 210, so that the water flow cannot be closed through the valve. By opening the water inlet 29 and the water outlet 28, the overall water flow can flow out evenly and the water flow pressure remains consistent.

[0034] Secondly, when the angle valve is opened, the water flow pressure remains consistent, and the water pressure matches the torsion of the torsion spring 34. Through the consistency of pressure, the water flow pushes the two-petal butterfly plate 33 to expand the butterfly plate 33. The water flow is normal in use. When the angle valve is aged, damaged, and the valve core is offset or falls off, the water pressure inside the valve body 1 bursts due to the offset of the water inlet 29 and the water outlet 28, so that the overall water pressure is reduced. At this time, the torsion of the torsion spring 34 supports the two-petal butterfly plate 33 to block the water flow in the valve body 1, preventing the water flow from continuing to flow out when the angle valve bursts and is damaged, causing a waste of water resources.

[0035] 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.

[0036] 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. An explosion-proof angle valve with a decompression structure, comprising a valve body (1), characterized in that: The outer wall of the valve body (1) is provided with a water outlet pipe (12), the outer wall of the water outlet pipe (12) is fixedly connected with a connector (13), the connector (13) is installed inside the pipeline through a threaded engagement provided on the outer wall, and a pressure reducing structure (3) is provided inside the connector (13); The decompression structure (3) comprises a fixing rod (31), wherein the fixing rod (31) is fixedly mounted inside the connecting head (13), two fixing bases (32) in opposite positions are arranged on both sides of the outer wall of the connecting head (13), two butterfly plates (33) are fixedly connected to the outer walls of the two fixing bases (32), and two torsion springs (34) are arranged on the outer wall of the fixing rod (31), and two ends of the two torsion springs (34) are respectively connected to the two butterfly plates (33).

2. The explosion-proof angle valve with a decompression structure according to claim 1, characterized in that: A connecting rod (11) is fixedly connected to the bottom of the valve body (1), and the connecting rod (11) is installed inside the water inlet pipe through surface thread engagement.

3. The explosion-proof angle valve with a decompression structure according to claim 2, characterized in that: A handle (14) is movably mounted above the valve body (1), and a valve core assembly (2) is arranged inside the handle (14).

4. The explosion-proof angle valve with a decompression structure according to claim 3, characterized in that: The valve core assembly (2) comprises a clamping joint (21), and the clamping joint (21) is installed in a clamping seat inside the handle (14) through surface clamping teeth engagement.

5. The explosion-proof angle valve with a decompression structure according to claim 4, characterized in that: The outer wall of the clamping joint (21) is fixedly connected to a valve stem (22), and a gasket (23) is movably mounted on the outer wall of the valve stem (22). A fastening nut (24) is arranged below the gasket (23), and a limiting plate (25) is arranged below the fastening nut (24), and the limiting plate (25) is attached to the top of the valve body (1).

6. The explosion-proof angle valve with a decompression structure according to claim 5, characterized in that: The outer wall of the limit plate (25) is provided with a sealing gasket (26); the outer wall of the valve stem (22) is fixedly connected with an inner valve core (27); the inner valve core (27) is attached to the inner side of the sealing gasket (26); the outer wall of the inner valve core (27) is provided with a connected water outlet (28); and a water inlet (29) is provided below the inner valve core (27).

7. The explosion-proof angle valve with a decompression structure according to claim 6, characterized in that: An outer valve core (210) is fixedly connected below the limit plate (25), and the outer valve core (210) is attached to the outside of the sealing gasket (26). The outer valve core (210) is also provided with a water outlet (28) and a water inlet (29), and the outer valve core (210) is sleeved on the outside of the inner valve core (27).

8. The explosion-proof angle valve with a decompression structure according to claim 7, characterized in that: The upper end of the outer wall of the outer valve core (210) is provided with a thread, and the outer valve core (210) is installed inside the valve body (1) through threaded engagement.

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