CN217056490U

CN217056490U - Large-traffic manual air-vent valve

Info

Publication number: CN217056490U
Application number: CN202220950807.1U
Authority: CN
Inventors: 孙立源; 梁创记
Original assignee: Tianjin Juneng High Pressure Pump Co ltd
Current assignee: Tianjin Juneng High Pressure Pump Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-26
Anticipated expiration: 2032-04-24

Abstract

The utility model relates to an air-vent valve technical field especially relates to a large-traffic manual air-vent valve, which comprises a valve body, a valve seat, valve rod and handle, the valve body lateral part is equipped with the inlet, the liquid outlet, the valve body bottom is equipped with backward flow mouth, the valve body middle part be equipped with the inlet, the liquid outlet, the communicating chamber of crossing of backward flow mouth, valve body top fixed mounting has the handle mount pad, the handle passes through threaded connection and installs on the handle mount pad, the valve rod is located and overflows the intracavity, valve rod top and handle fixed connection, valve rod bottom fixed mounting has the taper sleeve, disk seat fixed mounting is in backward flow mouth department and sets up with the valve rod is concentric, set up at the disk seat middle part with taper sleeve complex backward flow hole, the below of inlet is equipped with the earial drainage mouth, earial drainage mouth department installs the diaphragm. The device provided by the utility model simple structure, the rapid operation, the speed governing is even and the operation is reliable and stable.

Description

Large-traffic manual air-vent valve

Technical Field

The utility model relates to an air-vent valve technical field especially relates to a large-traffic manual air-vent valve.

Background

The existing manual pressure regulating valve for regulating the pressure of high-pressure water jet flow is characterized in that a spring is arranged on a valve rod and is abutted against a valve seat, and the displacement between the valve rod and the valve seat is regulated through a handle so as to achieve the purpose of pressure regulation. When the pressure in the high-pressure cavity exceeds a certain set value, the mechanism can discharge a part of liquid to keep the pressure in the high-pressure cavity stable, in a cleaning control system with higher automation degree, the pressure regulating valve is used as a terminal execution device of an adjusting system to play a role of lifting, the higher the pressure is, the larger the acting force of high-pressure water acting on the cone valve is, the larger the acting force of the handle for adjusting the valve rod is, when the acting force is larger to a certain degree, manual pressure regulation is very difficult, only a spanner can be used, pressure release is not delayed when an emergency state occurs, and risks are brought to a pump system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a large-traffic manual air-vent valve is provided simple structure, and easy operation, the even and reliable operation of speed governing.

The utility model discloses a realize through following technical scheme:

the utility model provides a large-traffic manual air-vent valve, its includes valve body, disk seat, valve rod and handle, the valve body lateral part is equipped with inlet, liquid outlet, and the valve body bottom is equipped with backward flow mouth, and the valve body middle part is equipped with inlet, liquid outlet, the communicating chamber of crossing of backward flow mouth, and valve body top fixed mounting has the handle mount pad, the handle passes through threaded connection and installs on the handle mount pad, the valve rod is located and crosses the intracavity, valve rod top and handle fixed connection, valve rod bottom fixed mounting have the taper sleeve, disk seat fixed mounting just sets up with the valve rod is concentric in the department of backward flow mouth, the disk seat middle part seted up with taper sleeve complex backward flow hole, the below of inlet is equipped with the earial drainage mouth, earial drainage mouth department installs the diaphragm.

Further, a valve cover is fixedly installed on the valve body, and the handle penetrates through the valve cover.

Preferably, the valve cover is fixedly connected with the valve body through a bolt.

Further, a sealing sleeve is fixedly installed between the handle installation seat and the valve body, and a first sealing device is installed between the sealing sleeve and the valve body.

Furthermore, a second sealing device is arranged among the handle mounting seat, the valve rod and the sealing sleeve.

The beneficial effects of the utility model

The utility model provides a pair of large-traffic manual air-vent valve has following advantage: simple structure, labor-saving operation, uniform speed regulation and stable and reliable operation.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

in the figure, 1, a valve body, 2, a second sealing device, 3, a valve cover, 4, a handle, 5, a handle mounting seat, 6, a sealing sleeve, 7, a liquid outlet, 8, a taper sleeve, 9, a return port, 10, a valve seat, 11, a discharge port, 12, a diaphragm, 13, a liquid inlet, 14, an overflow cavity, 15, a valve rod and 16, a first sealing device are arranged.

Detailed Description

The utility model provides a large-traffic manual air-vent valve, its includes valve body 1, disk seat 10, valve rod 15 and handle 4, the valve body lateral part is equipped with inlet 13, liquid outlet 7, and the valve body bottom is equipped with backward flow mouth 9, and the valve body middle part is equipped with inlet, liquid outlet, the communicating chamber of crossing of backward flow mouth 14, and valve body top fixed mounting has handle mount pad 5, the handle passes through threaded connection and installs on the handle mount pad, the valve rod is located and crosses the flow chamber, valve rod top and handle fixed connection, and valve rod bottom fixed mounting has taper sleeve 8, disk seat fixed mounting is in backward flow mouth department and with the valve rod concentric setting, the disk seat middle part seted up with taper sleeve complex backward flow hole, the below of inlet is equipped with earial drainage mouth 11, earial drainage mouth department installs diaphragm 12.

When this application regulated pressure, make valve rod up-and-down motion through rotatory handle, adjust the clearance between the taper sleeve and the disk seat of valve rod bottom to adjust the liquid flow who flows from the backward flow mouth, reach the effect of regulating pressure.

The handle is installed on the handle installation seat through threaded connection, the drain port is arranged below the liquid inlet, and the diaphragm is installed at the drain port. The rotating handle is hardly influenced by the pressure in the overflowing cavity, the operation is convenient and labor-saving, the rotation is flexible, the speed is stable during rotation, the speed regulation is uniform, and the operation is stable and reliable. Especially, in the initial stage of opening the valve, a certain gap is formed between the taper sleeve on the valve rod and the valve seat, so that the pressure in the overflowing cavity slowly rises, the equipment such as a plunger pump and the like can be prevented from being impacted when being started, and the safe and effective operation of the high-pressure plunger pump is guaranteed. And because the diaphragm is installed to earial drainage mouth department, the diaphragm can explode when exceeding ultimate pressure, and liquid can be discharged from earial drainage mouth, can realize high pressure, low pressure, the coordinated conversion of functions such as stop, real purpose that has reached accurate regulation and control, then only need change the diaphragm can, compare adopt on the valve rod install the spring and with form between the disk seat to support to press, the spring bears pressure all the time, cause inefficacy easily, lead to liquid from the earial drainage of return port department, it is more convenient laborsaving to adjust and maintain.

Further, a valve cover 3 is fixedly installed on the valve body, and the handle penetrates through the valve cover.

Preferably, the valve cover is fixedly connected with the valve body through a bolt. The valve cover and the handle are convenient to disassemble and assemble.

Further, a sealing sleeve 6 is fixedly arranged between the handle mounting seat and the valve body, and a first sealing device 16 is arranged between the sealing sleeve and the valve body, so that the sealing between the sealing sleeve and the valve body is facilitated;

and a second sealing device 2 is arranged among the handle mounting seat, the valve rod and the sealing sleeve, so that the valve rod, the handle mounting seat and the sealing sleeve are convenient to seal.

To sum up, the utility model provides a pair of large-traffic manual air-vent valve, simple structure, labour saving operation, the even and reliable operation of speed governing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-traffic manual pressure regulating valve which characterized in that: including valve body, disk seat, valve rod and handle, the valve body lateral part is equipped with inlet, liquid outlet, and the valve body bottom is equipped with backward flow mouth, the valve body middle part be equipped with inlet, liquid outlet, the communicating chamber of crossing of backward flow mouth, valve body top fixed mounting has the handle mount pad, the handle passes through threaded connection and installs on the handle mount pad, the valve rod is located and overflows the intracavity, valve rod top and handle fixed connection, valve rod bottom fixed mounting has the taper sleeve, disk seat fixed mounting just sets up with the valve rod is concentric in backward flow mouth department, the disk seat middle part seted up with taper sleeve complex backward flow hole, the below of inlet is equipped with the earial drainage mouth, earial drainage mouth department installs the diaphragm.

2. The manual high-flow pressure regulating valve according to claim 1, wherein a valve cover is fixedly mounted on said valve body, and said handle passes through said valve cover.

3. The high flow rate manual pressure regulating valve according to claim 2, wherein said valve cover is fixedly connected with said valve body through a bolt.

4. The manual high-flow pressure regulating valve according to claim 1, wherein a sealing sleeve is fixedly installed between the handle mounting seat and the valve body, and a first sealing device is installed between the sealing sleeve and the valve body.

5. A high flow rate manual pressure regulating valve according to claim 1, characterized in that a second sealing means is installed between the handle mounting seat, the valve stem and the sealing sleeve.