CN219263184U

CN219263184U - Direct acting spring loaded multifunctional valve

Info

Publication number: CN219263184U
Application number: CN202221392538.8U
Authority: CN
Inventors: 朱志林
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-06-27
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a direct acting spring-loaded multifunctional valve, which comprises a valve cover and a valve body with a fluid channel, wherein a valve membrane is arranged between the valve body and the valve cover, a valve seat for blocking the fluid channel is fixedly arranged on the valve membrane, and a valve seat hole matched with the valve seat is arranged on the fluid channel; a compression spring and an adjusting screw are arranged above the valve diaphragm: the valve diaphragm is matched with the valve body to form a diaphragm lower chamber, and the valve body is provided with a guide hole and a pilot hole which are communicated with the diaphragm lower chamber; the flow guide hole is used for communicating the diaphragm lower chamber with the inlet end of the fluid channel; the pilot hole is used for communicating the diaphragm lower chamber with an external pressure pipeline, at least one of the pilot hole and the pilot hole can be closed, a user can control whether the pilot hole and the pilot hole are opened or closed, the valve is used as a valve with different purposes, the valve is multipurpose, the replaceable degree is high, and the operability is strong.

Description

Direct acting spring loaded multifunctional valve

Technical Field

The present utility model relates to valves, and more particularly, to a direct acting spring loaded multi-function valve.

Background

The diaphragm pressure relief safety valve has the following working principle: a compression spring is arranged above the valve membrane and a control pressure is applied to the valve membrane below the valve membrane. When the control pressure exceeds the compression spring setting, the valve flap lifts from the valve seat, allowing fluid to pass through the control device. When the control pressure falls below the compression spring set point, the compression spring will exert a force and the control device will return to its normally closed position. The control pressure is applied to the chamber below the diaphragm through the outer tube; wherein the compression spring pressure adjustment simply rotates the adjustment screw to change the amount of compression spring preload on the valve diaphragm.

The existing diaphragm pressure relief safety valve has single function, cannot be used as a pipeline independent pressure relief valve and a valve for a pilot control device according to pipeline requirements, namely, the existing diaphragm pressure relief safety valve cannot be freely switched among a common valve, the pipeline independent pressure relief valve or the valve for the pilot control device, and has poor universality.

Disclosure of Invention

In view of the shortcomings of the prior art, the present utility model is directed to a direct acting spring loaded multi-function valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a kind of direct acting spring loaded multi-functional valve, including valve bonnet and valve body with fluid channel, there are valve diaphragms between valve body and valve bonnet, the said valve diaphragm is fixed with the valve base used for blocking the fluid channel, set up the valve base hole cooperating with valve base on the fluid channel; a compression spring and an adjusting screw are arranged above the valve diaphragm, one end of the adjusting screw penetrates through a screw hole of the valve cover to be abutted against one end part of the compression spring, and the other end part of the compression spring is abutted against the valve diaphragm; the valve diaphragm is matched with the valve body to form a diaphragm lower chamber, and the valve body is provided with a guide hole and a pilot hole which are communicated with the diaphragm lower chamber; the flow guide hole is used for communicating the diaphragm lower chamber with the inlet end of the fluid channel; the pilot hole is used for communicating the diaphragm lower chamber with an external pressure pipeline, wherein at least one of the pilot hole and the pilot hole is closed.

The utility model further provides that: the diversion hole is arranged in the valve body and is arranged close to one side of the inlet end of the fluid channel.

The utility model further provides that: and a sealing ring matched with the valve seat is arranged on the wall of the valve seat hole.

The utility model further provides that: the fluid channel comprises an inlet chamber with an inlet end and an outlet chamber with an outlet end, and an opening and closing port matched with the valve seat is arranged between the inlet chamber and the outlet chamber.

The utility model further provides that: the valve seat is inlaid with a sealing block matched with the opening and closing port.

The utility model further provides that: and the outlet chamber and the outlet end adopt a round corner transition structure.

The utility model further provides that: the valve rod and the valve seat are integrally arranged, and the valve rod is fixed on the valve membrane through a nut.

The utility model further provides that: the valve diaphragm and the valve cover are matched to form a diaphragm upper chamber, and the valve cover is provided with a pressure difference hole communicated with an external pressure pipeline.

The utility model has the beneficial effects that: when the guide hole is closed by the plug and the pilot hole is communicated with an external pressure pipeline, the valve can be used as a valve for a pilot control device, when the plug of the guide hole is removed, the guide hole enables the diaphragm lower chamber to be communicated with the inlet end of the fluid channel, and when the pilot hole is closed by the plug, the valve can be used as a valve for independent pipelines, when the guide hole and the pilot hole are both closed by the plug, the valve can be used as a common valve, a user can control whether the guide hole and the pilot hole are opened or closed, and the valve can be used as valves with different purposes, so that the valve is multipurpose, high in exchange degree and strong in operability.

Drawings

FIG. 1 is a cross-sectional view of a direct acting spring loaded multi-function valve of the present utility model;

FIG. 2 is a cross-sectional view of a direct acting spring loaded multi-function valve of the present utility model;

fig. 3 is a cross-sectional view of the valve body.

Reference numerals illustrate: 1. a valve cover; 11. a differential pressure orifice; 2. a valve body; 21. a fluid channel; 211. a valve seat hole; 212. an inlet chamber; 213. an outlet chamber; 214. opening and closing the opening; 22. a deflector aperture; 23. a pilot hole; 3. a valve membrane; 4. a valve seat; 41. a sealing block; 5. a valve stem; 6. a seal ring; 7. a compression spring; 8. and (5) adjusting a screw.

Detailed Description

A direct acting spring loaded multi-function valve of the present utility model will be described in further detail with reference to fig. 1-3.

The utility model provides a direct action spring-loaded multifunctional valve, includes valve gap 1 and has valve body 2 of fluid channel 21, is provided with valve diaphragm 3 between valve body 2 and valve gap 1, valve diaphragm 3 is fixed to be provided with the disk seat 4 that is used for blocking fluid channel 21, disk seat 4 passes through valve rod 5 to be fixed at valve diaphragm 3, wherein valve rod 5 and disk seat 4 an organic whole set up, valve rod 5 passes through the nut to be fixed at valve diaphragm 3, sets up at fluid channel 21 and cooperates with disk seat 4 disk seat hole 211, is provided with on the pore wall of disk seat hole 211 with disk seat 4 matched with sealing washer 6, can effectively improve disk seat hole 211 and disk seat 4 matched with leakproofness. The valve diaphragm 3 and the valve cover 1 are matched to form a diaphragm upper chamber, a compression spring 7 and an adjusting screw 8 are arranged above the valve diaphragm 3, one end of the adjusting screw 8 passes through a screw hole of the valve cover 1 and abuts against one end part of the compression spring 7, and the other end part of the compression spring 7 abuts against the valve diaphragm 3; the pressure of the compression spring 7 is adjusted by rotating an adjusting screw, so that the pre-pressing amount of the compression spring 7 on the valve diaphragm 3 is changed, the pressure born by the valve diaphragm 3 is changed, meanwhile, the pressure born by the valve diaphragm 3 can also be changed into a pressure difference control valve and a flow control valve by providing a pressure difference hole 11 communicated with an external pressure pipeline on the valve cover 1, so that the pressure in the upper cavity of the diaphragm can be changed by connecting the pressure difference hole 11 with the external pressure pipeline, the pressure born by the valve diaphragm 3 is changed, and the valve can be changed into a pressure difference control valve and a flow control valve, thereby realizing multiple purposes.

The valve diaphragm 3 is matched with the valve body 2 to form a diaphragm lower chamber, and the valve body 2 is provided with a diversion hole 22 and a pilot hole 23 which are communicated with the diaphragm lower chamber; the diversion hole 22 is used for communicating the diaphragm lower chamber with the inlet end of the fluid channel 21, wherein the diversion hole 22 is arranged in the valve body 2 and is arranged near one side of the inlet end of the fluid channel 21, so that the diversion hole 22 is conveniently opened and closed; the pilot hole 23 is used for communicating the diaphragm lower chamber with an external pressure pipe, wherein at least one of the pilot hole 22 and the pilot hole 23 is closed. Therefore, when the pilot hole 22 is closed by the plug and the pilot hole 23 is communicated with an external pressure pipeline, the valve can be used as a valve for a pilot control device, when the plug of the pilot hole 22 is removed, the pilot hole 22 communicates a diaphragm lower chamber with the inlet end of the fluid channel 21, and when the pilot hole 23 is closed by the plug, the valve can be used as a valve for independent pipelines, when the pilot hole 22 and the pilot hole 23 are both closed by the plug, the valve can be used as a common valve, a user can control whether the pilot hole 22 and the pilot hole 23 are opened or closed, and the valve can be used as valves with different purposes, so that the valve is multipurpose, the exchangeable degree is high, and the operability is strong.

The fluid channel 21 includes an inlet chamber 212 with an inlet end and an outlet chamber 213 with an outlet end, an opening and closing port 214 matched with the valve seat 4 is disposed between the inlet chamber 212 and the outlet chamber 213, in order to improve tightness of the valve seat 4 matched with the opening and closing port 214, the valve seat 4 is inlaid with a sealing block 41 matched with the opening and closing port 214, and the outlet chamber 213 and the outlet end adopt a rounded transition structure, so that fluid flow resistance is reduced.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A kind of direct acting spring loaded multi-functional valve, including valve bonnet and valve body with fluid channel, there are valve diaphragms between valve body and valve bonnet, the said valve diaphragm is fixed with the valve base used for blocking the fluid channel, the said valve base is fixed on valve diaphragm through the valve stem, set up the valve base hole cooperating with valve base on the fluid channel; a compression spring and an adjusting screw are arranged above the valve diaphragm, one end of the adjusting screw penetrates through a screw hole of the valve cover to be abutted against one end part of the compression spring, and the other end part of the compression spring is abutted against the valve diaphragm; the method is characterized in that: the valve diaphragm is matched with the valve body to form a diaphragm lower chamber, and the valve body is provided with a guide hole and a pilot hole which are communicated with the diaphragm lower chamber;

the flow guide hole is used for communicating the diaphragm lower chamber with the inlet end of the fluid channel; the pilot hole is used for communicating the diaphragm lower chamber with an external pressure pipeline, wherein at least one of the pilot hole and the pilot hole is closed.

2. A direct acting spring loaded multi-function valve as defined in claim 1 wherein: the diversion hole is arranged in the valve body and is arranged close to one side of the inlet end of the fluid channel.

3. A direct acting spring loaded multi-function valve as defined in claim 1 wherein: and a sealing ring matched with the valve seat is arranged on the wall of the valve seat hole.

4. A direct acting spring loaded multi-function valve as claimed in claim 1 or 2 or 3 wherein: the fluid channel comprises an inlet chamber with an inlet end and an outlet chamber with an outlet end, and an opening and closing port matched with the valve seat is arranged between the inlet chamber and the outlet chamber.

5. A direct acting spring loaded multi-function valve as defined in claim 4 wherein: the valve seat is inlaid with a sealing block matched with the opening and closing port.

6. A direct acting spring loaded multi-function valve as defined in claim 4 wherein: and the outlet chamber and the outlet end adopt a round corner transition structure.

7. A direct acting spring loaded multi-function valve as claimed in claim 1 or 2 or 3 wherein: the valve rod and the valve seat are integrally arranged, and the valve rod is fixed on the valve membrane through a nut.

8. A direct acting spring loaded multi-function valve as claimed in claim 1 or 2 or 3 wherein: the valve diaphragm and the valve cover are matched to form a diaphragm upper chamber, and the valve cover is provided with a pressure difference hole communicated with an external pressure pipeline.