Water supply valve with exhaust function

Abstract

The invention relates to the technical field of valves, in particular to a water supply valve with an exhaust function. Comprising a stop valve, a filtering device, a non-return mechanism and an exhaust valve, the stop valve comprises a valve body, a flashboard, a valve rod and a hand wheel; the valve body is provided with a second cavity and a third cavity on the right side of the flashboard, and the filtering device is arranged in the second cavity; the non-return mechanism is arranged in the third cavity; the second cavity of the valve body is provided with a radial hole, the upper side of the radial hole is provided with a valve cover, and a filter screen is clamped between the lower side of the valve cover and the second cavity to form the filter device; and a check valve is arranged in the third cavity. And an exhaust valve is arranged on the third cavity. The outer sides of the gate plate and the valve clack are wrapped with a layer of rubber. The exhaust valve has the beneficial effects that the exhaust valve can exhaust gas in a pipeline very conveniently, and maintenance is convenient.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to a water supply valve with an air venting function. Background Technology

[0002] Currently, the water supply valves used in pipelines on the market are all single-function, and the pipelines are connected by flanges. If there is gas in the pipeline, it needs to be disassembled to release the gas, which is very inconvenient for maintenance.

[0003] This invention provides a water supply valve with an air venting function, which can easily solve this problem. Summary of the Invention

[0004] The main objective of this invention is to provide a water supply valve with an air venting function, so as to effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water supply valve with venting function, comprising a shut-off valve, a filter device, a check valve, and a venting valve; the shut-off valve comprises a valve body, a gate, a valve stem, and a handwheel; the valve body has a second cavity and a third cavity on the right side of the gate, the filter device is disposed in the second cavity (the water flow direction is from left to right); the check valve is disposed in the third cavity; The valve body has a radial hole on the second cavity on the right side of the gate. A valve cover is installed on the upper side of the radial hole. The valve cover is fixedly connected to the valve body with bolts. A semi-circular valve body annular groove is provided in the inner cavity of the valve body below the valve cover. A semi-circular valve cover annular groove is provided on the lower side of the valve cover. The valve body annular groove and the valve cover annular groove form a closed circular groove. A filter screen is installed in the circular groove to form the filter device.

[0006] A valve seat is provided between the second cavity and the third cavity. A sealing ring is provided between the valve seat and the second cavity. A valve disc is tightly attached to the right end face of the valve seat. A valve stem is inserted into the center of the valve disc. A nut is installed on the valve stem to lock the valve stem and valve disc together. The left end of the valve stem is movably inserted into the through hole provided in the center of the valve seat. The right end of the third cavity is fixed with a guide fluid, and the right end of the valve stem is inserted into the through hole in the center of the guide fluid. A spring is fitted between the guide fluid and the valve disc on the valve stem. The spring presses the valve disc against the end face of the valve seat to close the pipeline.

[0007] Preferably, an exhaust valve is provided on the third cavity of the valve body.

[0008] Preferably, the valve disc and gate are wrapped with a layer of rubber.

[0009] The beneficial effects of this invention are: the exhaust valve can easily discharge gas from the pipeline, facilitating maintenance. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the structure of the present invention.

[0011] Appendix Figure 1 In the middle, there are: valve body 1, valve cover 2, valve cover annular groove 3, bolt 4, filter screen 5, valve body annular groove 6, gate 7, valve stem 8, handwheel 9, nut 10, sealing ring 11, valve seat 12, valve disc 13, fluid guide 14, valve stem 15, spring 16, third chamber 17, and exhaust valve 18. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] Appendix Figure 1 As shown, a water supply valve with venting function includes a shut-off valve, a filter device, a check valve, and a venting valve; the shut-off valve includes a valve body 1, a gate 7, a valve stem 8, and a handwheel 9; the valve body 1 has a second cavity and a third cavity 17 on the right side of the gate 7, the filter device is disposed in the second cavity (the water flow direction is from left to right); the check valve is disposed in the third cavity 17; The valve body 1 has a radial hole on the second cavity on the right side of the gate 7. A valve cover 2 is provided on the upper side of the radial hole. The valve cover 2 is fixedly connected to the valve body 1 with bolts 4. A semi-circular valve body annular groove 6 is provided in the inner cavity of the valve body 1 below the valve cover 2. A semi-circular valve cover annular groove 3 is provided on the lower side of the valve cover 2. The valve body annular groove 6 and the valve cover annular groove 3 form a closed circular groove. A filter screen 5 is installed in the circular groove to form the filter device.

[0014] A valve seat 12 is provided between the second cavity and the third cavity 17. A sealing ring 11 is provided between the valve seat 12 and the second cavity. A valve disc 13 is tightly attached to the right end face of the valve seat 12. A valve stem 15 is inserted into the center of the valve disc 13. A nut 10 is installed on the valve stem 15 to lock and fix the valve stem 15 and the valve disc 13. The left end of the valve stem 15 is movably inserted into the through hole provided in the center of the valve seat 12. The right end of the third cavity 17 is fixed with a guide fluid 14, and the right end of the valve stem 15 is inserted into the through hole in the center of the guide fluid 14. A spring 16 is fitted between the guide fluid 14 and the valve disc 13. The spring 16 presses the valve disc 13 against the end face of the valve seat 12 to close the pipeline.

[0015] An exhaust valve 18 is provided on the third cavity of the valve body.

[0016] The valve disc 13 and the gate 7 are wrapped with a layer of rubber.

[0017] In practical use, due to the function of the check valve, the pipe on the right side of the third chamber is in a closed state. If there is gas in the pipe, the gas can be discharged from the pipe by opening the exhaust valve 18, which is very convenient for maintenance.

[0018] The beneficial effects of this invention are: the exhaust valve can easily discharge gas from the pipeline, facilitating maintenance.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water supply valve with an air venting function, characterized in that: It includes a shut-off valve, a filter device, a check valve, and an air vent valve; the shut-off valve includes a valve body, a gate, a valve stem, and a handwheel; the valve body has a second chamber and a third chamber on the right side of the gate, the filter device is located in the second chamber (the water flow direction is from left to right); the check valve is located in the third chamber; The valve body has a radial hole on the second cavity on the right side of the gate. A valve cover is provided on the upper side of the radial hole. The valve cover is fixedly connected to the valve body with bolts. A semi-circular valve body annular groove is provided in the inner cavity of the valve body below the valve cover. A semi-circular valve cover annular groove is provided on the lower side of the valve cover. The valve body annular groove and the valve cover annular groove form a closed circular groove. A filter screen is installed in the circular groove to form the filter device. A valve seat is provided between the second cavity and the third cavity. A sealing ring is provided between the valve seat and the second cavity. A valve disc is tightly attached to the right end face of the valve seat. A valve stem is inserted into the center of the valve disc. A nut is installed on the valve stem to lock the valve stem and valve disc together. The left end of the valve stem is movably inserted into the through hole provided in the center of the valve seat. The right end of the third cavity is fixed with a guide fluid, and the right end of the valve stem is inserted into the through hole in the center of the guide fluid. A spring is fitted between the guide fluid and the valve disc on the valve stem. The spring presses the valve disc against the end face of the valve seat to close the pipeline.

2. A water supply valve with venting function according to claim 1, characterized in that: An exhaust valve is installed on the third chamber of the valve body.

3. A water supply valve with venting function according to claim 1, characterized in that: The valve disc and gate are wrapped with a layer of rubber on the outside.

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