CN216714858U

CN216714858U - Pressure limiting stop valve

Info

Publication number: CN216714858U
Application number: CN202123330163.0U
Authority: CN
Inventors: 李春鹏
Original assignee: Dalian Really Technology Co ltd
Current assignee: Dalian Really Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-10
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a pressure-limiting stop valve which comprises a cylinder body, wherein a cavity is arranged in the middle of the cylinder body, the left end and the right end of the middle of the cavity penetrate through the middle of a bushing, the middle of the cavity penetrates through the middle of a first valve rod, sealing plugs are arranged at the upper end and the lower end of the first valve rod, and the top end of the cylinder body is fixedly connected with the left side of the bottom end of a control pilot valve. In the utility model, the pressure of the high-pressure pump is regulated by utilizing the pressure control valve, so that the processing quality is higher; the control element is not connected with liquid, the service life is more guaranteed, the pressure control valve has a complete unloading function, the phenomena of frequent starting and stopping of a high-pressure pump and overpressure unloading are avoided, the pressure control valve has multi-stage pressure online selection, proper cooling pressure is selected according to the diameter-depth ratio, the problems of insufficient internal cooling pressure, burrs, horn holes, taper holes and the like of workpieces are solved, the processing quality is improved, the pressure regulating and on-off functions are integrated, control signals can be shared, pipeline connection is reduced, and leakage points are reduced.

Description

Pressure limiting stop valve

Technical Field

The utility model relates to the technical field of stop valves, in particular to a pressure limiting stop valve.

Background

The stop valve, also called stop valve, is the most widely used valve, it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure, the closing principle of the stop valve is that the valve lever pressure is relied on to make the sealing surface of the valve clack and the sealing surface of the valve seat tightly joint, and the medium circulation is prevented.

And current stop valve relief valve single structure, the lower and conventional relief valve of operating mode adaptability does not carry the off-load function, require the pump to frequently open and stop, the life of pump has been reduced, need different pressure in the actual processing in order to satisfy the processing requirement to different work pieces, so the event still needs the air-vent valve except that the relief valve, stop valve etc. realize many pressure quick adjustment, these all need external various air-vent valves, other valves such as stop valve, just so increased the leakage point, the fault point, also increased very big degree of difficulty to the aspect of electrical control simultaneously, the cost of maintaining has also been increased, and because the external various valves of export of pump, lead to the export structure too complicated, cause equipment volume too bulky, the resource-wasting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pressure limiting stop valve.

In order to achieve the purpose, the utility model adopts the following technical scheme: the pressure-limiting stop valve comprises a cylinder body, wherein a cavity is arranged in the middle of the cylinder body, the left end and the right end of the middle of the cavity both penetrate through the middle of a bushing, the middle of the cavity penetrates through the middle of a first valve rod, the upper end and the lower end of the first valve rod are both provided with sealing plugs, the top end of the cylinder body is fixedly connected with the left side of the bottom end of a control pilot valve, the right end of the cavity is fixedly connected with the middle of the left side of a valve seat through a first screw, the upper side and the lower side of the right end of the bushing are both fixedly connected with the upper part and the lower part of the left side of a first right end cover, the middle of the right side of the first right end cover is provided with an outlet, the left end of the cavity is fixedly connected with the middle of the right end of a container type valve block, the middle of the bottom end of the container type valve block is fixedly connected with the middle of the top end of an upper end cover, the middle of the bottom end of the upper end is fixedly connected with the right side of a cylinder, and the top end of the lower end cover are fixedly connected with the cylinder, the side all is provided with the second valve rod around the inside of cylinder, the side all is provided with the spring around the middle part bottom of second valve rod and cylinder, the middle part front end downside of cylinder is provided with static seal, the bottom middle part of cylinder is provided with the off-load mouth, the front end middle part downside of cylinder passes through lower part fixed connection in the rear end of second screw and proportional valve, the top middle part front side of proportional valve and the bottom intercommunication of interface, the top of interface and the bottom intercommunication of barometer.

As a further description of the above technical solution:

and Y-shaped sealing rings are arranged at the upper end and the lower end of the middle part of the lining.

As a further description of the above technical solution:

and the upper end and the lower end of the lining are both provided with a first O-shaped sealing ring on the side far away from one side.

As a further description of the above technical solution:

the right end of the lining is fixedly connected with the left end of the blocking piece.

As a further description of the above technical solution:

and a sealing gasket is arranged between the valve seat and the cavity.

As a further description of the above technical solution:

and second O-shaped sealing rings are arranged at the front and rear ends of the lower side of the middle part of the cylinder and the upper parts of the front and rear ends of the upper end cover.

As a further description of the above technical solution:

and the front end and the rear end of the middle upper part of the cylinder are provided with one-way seals.

The utility model has the following beneficial effects:

1. in the utility model, the pressure of the high-pressure pump is accurately and quickly adjusted by using the pressure control valve, so that the processing quality is higher; the control element is not connected with liquid, the service life is more guaranteed, the pressure control valve has a complete unloading function, and the phenomena of frequent starting and stopping of the high-pressure pump and overpressure unloading are avoided.

2. The pressure control valve has the advantages that the multi-stage pressure on-line selection is realized, the proper cooling pressure is selected according to the diameter-depth ratio, the problems of insufficient internal cooling pressure, burrs of workpieces, horn holes, taper holes and the like are solved, the processing quality is improved, the pressure regulating and on-off functions are integrated, control signals can be shared, pipeline connection is reduced, and leakage points are reduced.

Drawings

FIG. 1 is a partial anatomical view of a pressure limiting stop valve in accordance with the present invention;

FIG. 2 is a front view of the pressure limiting shutoff valve of the present invention;

FIG. 3 is a side view of the pressure limiting shutoff valve of the present invention;

fig. 4 is a partial sectional view of the pressure limiting stop valve according to the utility model.

Illustration of the drawings:

1. a cylinder body; 2. a first valve stem; 3. a bushing; 4. a baffle plate; 5. a gasket; 6. a valve seat; 7. a first right end cap; 8. controlling the pilot valve; 9. a first screw; 10. a Y-shaped seal ring; 11. a first O-ring seal; 12. a sealing plug; 13. a cavity; 14. a lower end cover; 15. an upper end cover; 16. a spring; 17. a cylinder; 18. a second valve stem; 19. a proportional valve; 20. unidirectional sealing; 21. a second screw; 22. static sealing; 23. a second O-ring seal; 24. an unloading port; 25. an outlet; 26. a barometer; 27. an interface; 28. integrated valve block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: a pressure-limiting stop valve comprises a cylinder body 1, a cavity 13 is arranged in the middle of the cylinder body 1, the left and right ends of the middle of the cavity 13 penetrate through the middle of a bushing 3, the middle of the cavity 13 penetrates through the middle of a first valve rod 2, the upper and lower ends of the first valve rod 2 are provided with sealing plugs 12, the top end of the cylinder body 1 is fixedly connected with the left side of the bottom end of a control pilot valve 8, the right end of the cavity 13 is fixedly connected with the middle of the left side of a valve seat 6 through a first screw 9, the upper and lower sides of the right end of the right-end bushing 3 are fixedly connected with the upper and lower parts of the left side of a first right end cover 7, the middle of the right side of the first right end cover 7 is provided with an outlet 25, the left end of the cavity 13 is fixedly connected with the middle of the right end of a container type valve block 28, the middle of the bottom end of the container type valve block 28 is fixedly connected with the middle of an upper end cover 15, the middle of the bottom end of the upper end cover 15 is fixedly connected with the right side of the top middle of a cylinder 17, the right side of the bottom middle of the cylinder 17 is fixedly connected with the top middle of a lower end cover 14, the front side and the rear side of the interior of the air cylinder 17 are respectively provided with a second valve rod 18, the front side and the rear side of the bottom end of the middle part of the second valve rod 18 and the air cylinder 17 are respectively provided with a spring 16, the lower side of the front end of the middle part of the air cylinder 17 is provided with a static seal 22, the middle part of the bottom end of the air cylinder 17 is provided with an unloading port 24, the lower side of the middle part of the front end of the air cylinder 17 is fixedly connected with the middle lower part of the rear end of the proportional valve 19 through a second screw 21, the front side of the middle part of the top end of the proportional valve 19 is communicated with the bottom end of a connector 27, the top end of the connector 27 is communicated with the bottom end of an air pressure gauge 26, the pressure of the high-pressure pump can be accurately and rapidly adjusted by utilizing the pressure control valve, and the processing quality is higher; the control element is not connected with liquid, the service life is more guaranteed, the pressure control valve has a complete unloading function, the phenomena of frequent starting and stopping of a high-pressure pump and overpressure unloading are avoided, the pressure control valve has multi-stage pressure online selection, proper cooling pressure is selected according to the diameter-depth ratio, the problems of insufficient internal cooling pressure, burrs, horn holes, taper holes and the like of workpieces are solved, the processing quality is improved, the pressure regulating and on-off functions are integrated, control signals can be shared, pipeline connection is reduced, and leakage points are reduced.

The upper and lower ends in the middle of bush 3 all are provided with Y type sealing washer 10, and the upper and lower end of bush 3 is kept away from one side and all is provided with first O type sealing washer 11 mutually, and the right-hand member of right-hand member bush 3 and the left end fixed connection of separation blade 4 are provided with sealed 5 between disk seat 6 and the cavity 13, and the middle upper portion in middle part downside front and back end and the upper end cover 15 of cylinder 17 all is provided with second O type sealing washer 23, and the middle upper portion front and back end of cylinder 17 all is provided with one-way 20.

The working principle is as follows: the pressure of the high-pressure pump is accurately and quickly adjusted by using the pressure control valve, so that the processing quality is higher; the control element is not connected with liquid, the service life is more guaranteed, the pressure control valve has a complete unloading function, the phenomena of frequent starting and stopping of a high-pressure pump and overpressure unloading are avoided, the pressure control valve has multi-stage pressure online selection, proper cooling pressure is selected according to the diameter-depth ratio, the problems of insufficient internal cooling pressure, burrs, horn holes, taper holes and the like of workpieces are solved, the processing quality is improved, the pressure regulating and on-off functions are integrated, control signals can be shared, pipeline connection is reduced, and leakage points are reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Pressure limiting stop valve, including cylinder body (1), its characterized in that: the middle part of the cylinder body (1) is provided with a cavity (13), the left and right ends of the middle part of the cavity (13) penetrate through the middle part of the bushing (3), the middle part of the cavity (13) penetrates through the middle part of the first valve rod (2), the upper and lower ends of the first valve rod (2) are provided with sealing plugs (12), the top end of the cylinder body (1) is fixedly connected with the left side of the bottom end of the control pilot valve (8), the right end of the cavity (13) is fixedly connected with the middle part of the left side of the valve seat (6) through a first screw (9), the upper and lower sides of the right end of the bushing (3) are fixedly connected with the upper and lower parts of the left side of the first right end cover (7), the middle part of the right side of the first right end cover (7) is provided with an outlet (25), the left end of the cavity (13) is fixedly connected with the middle part of the right end of the integrated valve block (28), the middle part of the bottom end of the integrated valve block (28) is fixedly connected with the middle part of the top end of the upper end cover (15), the middle part of the bottom end of the upper end cover (15) is fixedly connected with the right side of the middle part of the top end of the cylinder (17), the right side of the middle part of the bottom end of the cylinder (17) is fixedly connected with the middle part of the top end of the lower end cover (14), the front side and the rear side of the interior of the air cylinder (17) are respectively provided with a second valve rod (18), the front side and the rear side of the bottom end of the middle part of the second valve rod (18) and the air cylinder (17) are respectively provided with a spring (16), a static seal (22) is arranged at the lower side of the front end of the middle part of the cylinder (17), an unloading opening (24) is arranged at the middle part of the bottom end of the cylinder (17), the lower side of the middle part of the front end of the cylinder (17) is fixedly connected with the middle lower part of the rear end of the proportional valve (19) through a second screw (21), the front side of the middle part of the top end of the proportional valve (19) is communicated with the bottom end of a connector (27), and the top end of the connector (27) is communicated with the bottom end of a barometer (26).

2. The pressure limiting stop valve of claim 1, wherein: and Y-shaped sealing rings (10) are arranged at the upper end and the lower end of the middle part of the lining (3).

3. A pressure limiting stop valve as defined in claim 1 wherein: and the upper end and the lower end of the lining (3) are both provided with a first O-shaped sealing ring (11) at the side far away from one side.

4. The pressure limiting stop valve of claim 1, wherein: the right end of the lining (3) is fixedly connected with the left end of the baffle (4).

5. The pressure limiting stop valve of claim 1, wherein: a sealing gasket (5) is arranged between the valve seat (6) and the cavity (13).

6. The pressure limiting stop valve of claim 1, wherein: and the front end and the rear end of the lower side of the middle part of the cylinder (17) and the middle upper part of the front end and the rear end of the upper end cover (15) are respectively provided with a second O-shaped sealing ring (23).

7. A pressure limiting stop valve as defined in claim 1 wherein: and the front end and the rear end of the middle upper part of the cylinder (17) are provided with one-way seals (20).