CN212986212U

CN212986212U - Boosting type electromagnetic type gas emergency cut-off valve

Info

Publication number: CN212986212U
Application number: CN202021807693.2U
Authority: CN
Inventors: 范利波
Original assignee: Chongqing Panheng Valve Co ltd
Current assignee: Chongqing Panheng Valve Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-04-16
Anticipated expiration: 2030-08-26

Abstract

The utility model provides a boosting formula electromagnetic type gas emergency cut-off valve, include: the upper valve body is a three-way valve body which comprises a main pipeline and an installation pipeline which is perpendicular to and communicated with the main pipeline, a communication port is formed at the communication position of the main pipeline and the installation pipeline, two opposite outlets of the main pipeline are respectively an air inlet and an air outlet, one end of the baffle is fixed in the main pipeline, the other end of the baffle is positioned between the communication ports and forms a valve port and a through hole with the inner wall of the main pipeline, the valve port and the through hole are positioned in the communication ports, the air inlet is communicated with the installation pipeline through the through hole, the piston is arranged in the installation pipeline and corresponds to the valve port, the valve cover is hermetically connected with the installation pipeline, the lower end of the upper valve body is fixed on the valve cover, the upper end of the upper valve body is provided with a sliding sleeve with a shoulder, one end of the pull rod penetrates through the upper valve body and the piston and, the other end passes through the shouldered sliding sleeve to fix the round handle.

Description

Boosting type electromagnetic type gas emergency cut-off valve

Technical Field

The utility model relates to a solenoid valve field, especially a boosting formula electromagnetic type gas emergency cut-off valve.

Background

The gas electromagnetic valve is also called a gas emergency cut-off valve, and is an actuating mechanism which is suitable for two-position on-off switching of pipelines for heating and burning media of various gases such as city gas, liquefied petroleum gas, natural gas and the like, and can automatically control the temperature. It is widely used in gas heat setting in textile industry and printing industry, kiln heating in glass and bulb industry and gas heating automatic control system in other industries, and the gas electromagnetic valve is a safe emergency cut-off device for gas pipeline. The gas leakage alarm device can be connected with a gas leakage alarm system or connected with a fire control and other intelligent alarm control terminal modules and the like, so that the gas source can be automatically/manually and emergently cut off on site or remotely, and the gas safety is ensured. The valve will close automatically when a harmful strong shock occurs. The valve opening needs manual intervention and manual opening, meets safety management standards, and accords with accident handling characteristics.

Among the existing product, the shortcoming lies in: 1. the valve is opened manually or electrically, so that the valve cannot be kept in an open state for a long time, and the degree of mechanization is low; 2. when the valve is closed, the electromagnet, the piston and the like cannot return automatically and need to be reset manually; 3. the valve of the valve needs to be opened manually, and no protective measures are taken.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model aims at providing a boosting formula electromagnetic type gas emergency cut-off valve, it can be through the manual valve of opening, and the electromagnetism keeps the open mode with the valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a boosting formula electromagnetic type gas emergency cut-off valve, includes: the valve comprises a lower valve body, a valve cover, a piston, a pull rod, an upper valve body, a groove, a fixed iron core, a movable iron core, an electromagnetic coil, a self-locking valve rod, a push rod and a baffle plate;

the upper valve body is a three-way valve body, the three-way valve body comprises a main pipeline and an installation pipeline which is perpendicular to and communicated with the main pipeline, a communication port is arranged at the communication position of the main pipeline and the installation pipeline, two opposite outlets of the main pipeline are respectively an air inlet and an air outlet, one end of the baffle is fixed in the main pipeline, the other end of the baffle is positioned between the communication ports and forms a valve port and a through hole with the inner wall of the main pipeline, the valve port and the through hole are positioned in the communication port, the air inlet is communicated with the installation pipeline through the through hole, the piston is arranged in the installation pipeline and corresponds to the valve port, the valve cover is hermetically connected with the installation pipeline, the lower end of the upper valve body is fixed on the valve cover, the upper end of the upper valve body is provided with a sliding sleeve with a shoulder, one end of the pull rod penetrates through the upper valve, go up and seted up logical groove on the valve body lateral wall, decide iron core one end fix on last valve body lateral wall and with lead to the groove intercommunication, the other end is fixed with sealed piece, set up in the iron core and move iron core, auto-lock valve rod, push rod, it has solenoid to twine on the iron core to decide, auto-lock valve rod one end is passed logical groove and recess cooperation, and the other end is fixed with the one end of moving the iron core, it is fixed with the one end of push rod to move the other end of iron core, sealed piece is worn out to the other end of push rod.

Further, the piston is connected with the valve cover through a first return spring.

Furthermore, the self-locking valve rod is fixed with the side wall of the upper valve body through a second return spring.

Further, the push rod is fixed with the sealing block through a third return spring.

Furthermore, sealing gaskets are arranged on the shouldered sliding sleeve and the piston.

Furthermore, the fixed iron core is provided with one end of the sealing block and the upper end of the upper valve body, and the protective cover is sleeved on the end of the sealing block and the upper end of the upper valve body.

Due to the adoption of the technical scheme, the utility model discloses following advantage has: 1. when the valve needs to be opened, the protective cover is opened, the pull rod is pulled upwards manually, the piston is driven to move upwards, and the valve is opened; 2. the power supply is switched on, the movable iron core and the fixed contact center generate electromagnetic force, the movable iron core drives the self-locking valve rod to push out the movable iron core to be clamped with the groove on the pull rod when the pull rod is pulled up, the pull rod is fixed, and the opening state is kept; 3. when the valve needs to be opened for a long time, the damage is suffered due to long-time work, the core and the fixed iron are not sucked enough, the protective cover is opened manually to push the push rod, the movable iron core and the fixed iron are sucked, the valve is opened, and the practicability is high.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the present invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.

Drawings

The drawings of the present invention are described below.

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-an upper valve body; 2-valve cover; 3-a piston; 4-a pull rod; 5-an upper valve body; 6-groove; 7-fixing iron core; 8-a movable iron core; 9-an electromagnetic coil; 10-self-locking valve stem; 11-a second return spring; 12-a third return spring; 13-a push rod; 14-installing a pipeline; 15-air inlet; 16-an air outlet; 17-a baffle; 18-valve port; 19-a through hole; 20-a sliding sleeve with a shoulder; 21-a first return spring; 22-a sealing block; 23-protective cover.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, the utility model provides a boosting formula electromagnetic type gas emergency cut-off valve, include: the valve comprises a lower valve body 1, a valve cover 2, a piston 3, a pull rod 4, an upper valve body 5, a groove 6, a fixed iron core 7, a movable iron core 8, an electromagnetic coil 9, a self-locking valve rod 10, a push rod 13 and a baffle 17;

the upper valve body 1 is a three-way valve body, the three-way valve body comprises a main pipeline and a mounting pipeline 14 which is perpendicular to and communicated with the main pipeline, a communication port is arranged at the communication position of the main pipeline and the mounting pipeline 14, two opposite outlets of the main pipeline are respectively an air inlet 15 and an air outlet 16, one end of a baffle 17 is fixed in the main pipeline, the other end of the baffle 17 is positioned between the communication ports and forms a valve port 18 and a through hole 19 with the inner wall of the main pipeline, the valve port 18 and the through hole 19 are positioned in the communication port, the air inlet 15 is communicated with the mounting pipeline 14 through the through hole 19, the piston 3 is arranged in the mounting pipeline 14 and corresponds to the valve port 18, the valve cover 2 is hermetically connected with the mounting pipeline 14, the lower end of the upper valve body 5 is fixed on the valve cover 2, the upper end of the upper valve body 5 is provided with a sliding sleeve, the other end passes shouldered sliding sleeve 20 and is fixed with circular handle 24, recess 6 has still been seted up on pull rod 4, it has seted up logical groove on the 5 lateral walls of last valve body to go up, decide 7 one ends of iron core fixed on 5 lateral walls of last valve body and with lead to the groove intercommunication, the other end is fixed with sealing block 22, it moves iron core 8, auto-lock valve rod 10, push rod 13 to set up in the iron core 7, twine solenoid 9 on the iron core 7, auto-lock valve rod 10 one end is passed logical groove and recess 6 cooperation, and the other end is fixed with the one end of moving iron core 8, it is fixed with the one end of push rod 13 to move the other end of iron core 8, sealing block 22 is worn.

The piston 3 is connected to the valve cover 2 via a first return spring 21.

And the self-locking valve rod 10 is fixed with the side wall of the upper valve body 5 through a second return spring 11.

The push rod 13 is fixed to the sealing block 22 by the third return spring 12.

And sealing gaskets are arranged on the shouldered sliding sleeve 20 and the piston 3.

And a protective cover 23 is sleeved at one end of the fixed iron core 7, which is provided with the sealing block 22, and the upper end of the upper valve body 5.

In the utility model, when the valve needs to be opened, firstly, after the electromagnetic coil 9 is powered on, the pull rod 4 is manually pulled up, and simultaneously the fixed iron core 7 and the movable iron core 8 are attracted by the electromagnetic force of the electromagnetic coil 9, so that the movable iron core 8 drives the self-locking valve rod 10 to horizontally move towards the direction close to the pull rod 4, thereby pushing the self-locking valve rod 10 out of the through groove on the upper valve body 5 to be clamped with the groove 6 on the pull rod 4, so as to lock the pull rod 4, thereby keeping the valve in an open state, when the valve needs to be opened for a long time, the electromagnetic coil 9 is powered on for a long time, so that the fixed iron core 7 and the movable iron core 8 can not automatically attract and join, the protective cover 23 is manually opened, the push rod 13 is pushed, so that the fixed iron core 7 and the movable iron core 8 are attracted, thereby the valve is opened, when the valve needs to be closed, the power of the electromagnetic coil, the piston 3 and the pull rod 4 are instantaneously moved downwards to be reset through the first reset spring 21 and the gravity of the piston, and the valve is closed.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a boosting formula electromagnetic type gas emergency cut-off valve which characterized in that, boosting formula electromagnetic type gas emergency cut-off valve includes: the valve comprises a lower valve body (1), a valve cover (2), a piston (3), a pull rod (4), an upper valve body (5), a groove (6), a fixed iron core (7), a movable iron core (8), an electromagnetic coil (9), a self-locking valve rod (10), a push rod (13) and a baffle plate (17);

the lower valve body (1) is a three-way valve body, the three-way valve body comprises a main pipeline and a mounting pipeline (14) which is perpendicular to and communicated with the main pipeline, a communication port is formed at the communication position of the main pipeline and the mounting pipeline (14), an air inlet (15) and an air outlet (16) are respectively formed at two opposite outlets of the main pipeline, one end of a baffle (17) is fixed in the main pipeline, the other end of the baffle is positioned between the communication ports and forms a valve port (18) and a through hole (19) with the inner wall of the main pipeline, the valve port (18) and the through hole (19) are positioned in the communication port, the air inlet (15) is communicated with the mounting pipeline (14) through the through hole (19), the piston (3) is arranged in the mounting pipeline (14) and corresponds to the valve port (18), the valve cover (2) is hermetically connected with the mounting pipeline (14), the upper end of the upper valve body (5) is provided with a shouldered sliding sleeve (20), one end of the pull rod (4) penetrates through the upper valve body (5) and the piston (3) to be located in the installation pipeline (14) and fixed with the piston (3), the other end of the pull rod penetrates through the shouldered sliding sleeve (20) and is fixed with a round handle (24), the pull rod (4) is further provided with a groove (6), the side wall of the upper valve body (5) is provided with a through groove, one end of the fixed iron core (7) is fixed on the side wall of the upper valve body (5) and is communicated with the through groove, the other end of the fixed iron core is fixed with a sealing block (22), a movable iron core (8), a self-locking valve rod (10) and a push rod (13) are arranged in the fixed iron core (7), an electromagnetic coil (9) is wound on the fixed iron core (7), one end of the self-locking valve rod (10) penetrates through groove and is matched with the, the other end of the push rod (13) penetrates through the sealing block (22).

2. The booster-type electromagnetic gas emergency shut-off valve according to claim 1, wherein the piston (3) is connected to the valve cover (2) by a first return spring (21).

3. The booster-type electromagnetic gas emergency cut-off valve as claimed in claim 1, wherein the self-locking valve rod (10) is fixed with the side wall of the upper valve body (5) through a second return spring (11).

4. The booster-type electromagnetic gas emergency shut-off valve according to claim 1, wherein the push rod (13) is fixed to the seal block (22) by a third return spring (12).

5. The booster-type electromagnetic emergency cut-off valve for fuel gas as claimed in claim 1, wherein the shouldered sliding sleeve (20) and the piston (3) are both provided with sealing gaskets.

6. The booster-type electromagnetic emergency cut-off valve for fuel gas as claimed in claim 1, wherein a protective cover (23) is sleeved on one end of the fixed iron core (7) provided with the sealing block (22) and the upper end of the upper valve body (5).