CN220851747U

CN220851747U - Steel cylinder cut-off valve

Info

Publication number: CN220851747U
Application number: CN202322536265.0U
Authority: CN
Inventors: 苏宗尧; 林淑友; 范云峰; 王荣伟
Original assignee: Zhejiang Suming Valves Co ltd
Current assignee: Zhejiang Suming Valves Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-26
Anticipated expiration: 2033-09-19

Abstract

The utility model provides a steel cylinder cut-off valve, and belongs to the technical field of gas accessories. It has solved current steel bottle trip valve and has used the not enough safety scheduling problem. The steel bottle stop valve comprises a valve rod, a valve body and an electromagnetic valve, wherein the valve body is provided with an air inlet end and an air outlet end, the outer end of the valve rod is fixedly connected with an iron core of the electromagnetic valve, a valve seat is arranged in the valve body, an inner cavity of the valve body is divided into an air inlet cavity communicated with the air inlet end and an air outlet cavity communicated with the air outlet end by the valve seat, the valve seat is provided with a vertically through air passing hole, the air inlet cavity is provided with a mounting hole and an air inlet hole, the inner end of the valve rod penetrates through the air passing hole and is connected with a sealing plug positioned in the mounting hole, the valve body is fixedly connected with a sealing piece for sealing an orifice of the mounting hole, an elastic mechanism for providing elasticity to enable the sealing plug to keep sealing in the trend of the air passing hole is arranged between the sealing plug and the sealing piece, and a sealing ring is arranged between the valve rod and the electromagnetic valve. The utility model has the advantages of long service life, good use safety and the like.

Description

Steel cylinder cut-off valve

Technical Field

The utility model belongs to the technical field of gas accessories, and relates to a cut-off valve, in particular to a steel cylinder cut-off valve.

Background

The steel cylinder cut-off valve is used for being connected between the steel cylinder and the gas pipe, and when the gas concentration detected by the gas sensor exceeds the standard, the controller controls the steel cylinder cut-off valve to work so as to cut off the gas channel, thereby ensuring the use safety.

For example, chinese patent literature discloses a gas emergency shut-off solenoid valve [ application number: 20120470025. X; authorized bulletin number: CN202327316U ], it includes valve body, actuating mechanism, the junction of actuating mechanism and valve body passes through the arc circle and realizes sealedly, actuating mechanism and valve body fixed connection, actuating mechanism includes electromagnetic control seat, electromagnetic coil subassembly, iron core switch module, electromagnetic control seat internal fixation is provided with electromagnetic coil subassembly, electromagnetic coil subassembly activity is provided with iron core switch module, iron core switch module runs through whole electromagnetic control seat, iron core switch module is including the last pull rod of longitudinal connection in proper order, movable core, lower pull rod, rubber seal assembly is connected to the bottom of lower pull rod, the cover is equipped with the tower cap on the lower pull rod, the tower cap is through plastics pressure cap and electromagnetic control seat fixed connection, rubber seal assembly passes through the spring and is connected with electromagnetic control seat.

The gas emergency cut-off electromagnetic valve is opened and closed through the iron core switch assembly, when the iron core switch assembly is opened, the tower cap is sealed, when the iron core switch assembly is closed, the rubber seal assembly is used for sealing, but the tower cap is frequently deformed and folded, the service life is short, the gas leakage risk exists, and when the gas pressure at the gas inlet end is overlarge, the elasticity of the spring can be overcome, the rubber seal assembly is opened, and the use safety is still not ideal.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a steel cylinder cut-off valve with long service life and good use safety.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a steel bottle trip valve, includes valve rod, valve body and solenoid valve, the valve body have the inlet end and give vent to anger the end, the valve body link firmly with the solenoid valve, the outer end of valve rod links firmly with the iron core that the solenoid valve had mutually, its characterized in that, the valve body in have the disk seat, the disk seat separates the valve body inner chamber into the inlet chamber that is linked together with the inlet end and the chamber of giving vent to anger that is linked together with the end, the disk seat has the vertical through hole that link up, the inlet chamber have the mounting hole that is located the air hole below and vertical setting, the inlet chamber still has the inlet port that is linked together inlet port and mounting hole middle part department, the inner of valve rod pass the air hole and be connected with the sealing plug that is located the mounting hole drill way shutoff, the valve body link firmly the shutoff piece with the mounting hole drill way shutoff, sealing plug and shutoff piece between be equipped with and provide elasticity and make the sealing plug keep sealing in the elastic mechanism of air hole trend, valve rod and solenoid valve between be equipped with the sealing washer.

In the steel cylinder cut-off valve, the elastic mechanism comprises a spring, the lower end of the spring is abutted against the plugging piece, and the upper end of the spring acts on the sealing plug.

In the steel cylinder cut-off valve, the sealing plug is embedded in a sealing seat, the top of the sealing plug is exposed out of the top surface of the sealing seat, and the upper end of the spring is abutted against the sealing seat.

In the steel cylinder cut-off valve, the bottom of the sealing seat is provided with a rod body sleeved with a spring.

In the steel cylinder cut-off valve, the plugging piece is a plug in threaded connection with the valve body.

In the steel cylinder cut-off valve, the electromagnetic valve is provided with the connecting seat in threaded connection with the top of the valve body, the connecting seat is used for the valve rod to penetrate and is provided with the installation cavity towards the end face of the valve seat, the two sealing rings are arranged on the valve rod in a sleeved mode, the two sealing rings are located in the installation cavity and sealed on the inner wall of the installation cavity, the connecting seat is provided with the riveting edge for riveting the opening of the installation cavity, and gaskets are arranged between the two sealing rings and between the sealing rings and the riveting edge located on the outer side.

In the steel cylinder cut-off valve, the top end of the iron core extends out of the electromagnetic valve and is covered with the dust cap.

Compared with the prior art, the steel cylinder stop valve has good tightness, good working stability and long service life, and the sealing plug is always sealed in the air passing hole by the elastic mechanism when the steel cylinder stop valve is closed, so that even if the gas pressure entering through the air inlet hole is overlarge, the gas pressure also acts on the sealing plug, the sealing effect of the sealing plug can be improved, the opening of the air passing hole can be avoided, and the use safety is good.

Drawings

Fig. 1 is a sectional view showing the structure of the cylinder shut-off valve.

In the figure, 1, a valve rod; 2. a valve body; 3. an electromagnetic valve; 4. an air inlet end; 5. an air outlet end; 6. an iron core; 7. a valve seat; 8. an air inlet cavity; 9. an air outlet cavity; 10. air passing holes; 11. a mounting hole; 12. an air inlet hole; 13. a sealing plug; 14. a blocking member; 15. a seal ring; 16. a spring; 17. a sealing seat; 18. a shaft; 19. a connecting seat; 20. riveting edges; 21. a gasket; 22. a dust cap.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, the steel cylinder shut-off valve comprises a valve rod 1, a valve body 2 and an electromagnetic valve 3, wherein the valve body 2 is provided with an air inlet end 4 and an air outlet end 5, the valve body 2 is fixedly connected with the electromagnetic valve 3, the outer end of the valve rod 1 is fixedly connected with an iron core 6 of the electromagnetic valve 3 through threaded connection, a valve seat 7 is arranged in the valve body 2, an inner cavity of the valve body 2 is divided into an air inlet cavity 8 communicated with the air inlet end 4 and an air outlet cavity 9 communicated with the air outlet end 5 by the valve seat 7, the valve seat 7 is provided with an air passing hole 10 which is vertically communicated, the air inlet cavity 8 is provided with an air inlet hole 12 which is arranged below the air passing hole 10 and is vertically arranged, the air inlet cavity 8 is also provided with an air inlet hole 12 which is communicated with the middle part of the air inlet end 4 and the mounting hole 11, the inner end of the valve rod 1 passes through the air passing hole 10 and is connected with a sealing plug 13 which is arranged in the mounting hole 11, the sealing plug 13 is a rubber piece and is fixedly connected with the inner end of the valve rod 1 through vulcanization, an elastic mechanism which is used for providing elasticity to keep the sealing trend of the sealing plug 13 in the air passing hole 10 is arranged between the sealing plug 14 and the sealing plug 14, and the valve body 2 is fixedly connected with the sealing plug 14.

When the steel cylinder cut-off valve is normally used, the valve rod 1 is in a downward pressure state, the elasticity of the elastic mechanism is overcome, the sealing plug 13 is separated from the air passing hole 10, and the fuel gas at the air inlet end 4 enters the mounting hole 11 through the air inlet hole 12 and enters the upper cavity through the air passing hole 10 and then flows out from the air outlet end 5; when the concentration of the fuel gas exceeds the standard, the existing controller obtains a signal of the gas sensor, the electromagnetic valve 3 is controlled to work, the iron core 6 drives the valve rod 1 to vertically ascend, the sealing plug 13 seals the air passing hole 10, the elastic force of the elastic mechanism enables the sealing plug 13 to keep sealing the trend of the air passing hole 10, at the moment, the air passing hole 10 is closed, namely, a fuel gas channel is cut off, and the fuel gas is prevented from continuously leaking from the air outlet end 5. The sealing washer 15 has guaranteed the leakproofness between valve rod 1 and the solenoid valve 3 in this steel bottle trip valve, and sealing washer 15 job stabilization nature is good, and the leakproofness is good, long service life, and the elastic mechanism when closing makes sealing plug 13 seal in passing gas hole 10 all the time moreover, even the gas pressure that inlet port 12 got into is super big, and gas pressure also acts on sealing plug 13, only can promote sealing plug 13's sealed effect, can not lead to passing gas hole 10 to open, and the safety in utilization is good.

Further, the elastic mechanism comprises a spring 16, the lower end of the spring 16 abuts against the blocking piece 14, the upper end of the spring 16 acts on the sealing plug 13, and the spring 16 provides elastic force to enable the sealing plug 13 to keep sealing with the air passing hole 10. The sealing plug 13 is embedded in a sealing seat 17, the top of the sealing plug 13 is exposed out of the top surface of the sealing seat 17, the upper end of the spring 16 is abutted against the sealing seat 17, the sealing seat 17 prevents the sealing plug 13 from being deformed excessively, and the sealing effect of the sealing plug 13 is ensured. The bottom of the sealing seat 17 is provided with the rod body 18 sleeved by the spring 16, the rod body 18 not only enables the spring 16 to be limited, but also enables the working stability of the spring 16 to be good, and prevents the sealing seat 17 from shaking during displacement, so that the working stability is good.

The blocking member 14 is a plug screwed with the valve body 2, so that the connection is convenient. The solenoid valve 3 has the connecting seat 19 with valve body 2 top threaded connection, the connecting seat 19 supplies valve rod 1 to pass and the connecting seat 19 has offered the installation cavity towards the terminal surface of disk seat 7, the quantity of sealing washer 15 is two and the cover is located on valve rod 1, two sealing washers 15 all are located the installation cavity and seal in the installation cavity inner wall, the connecting seat 19 has the riveting limit 20 with the installation cavity oral area riveting, all be equipped with gasket 21 between two sealing washers 15, be located between the sealing washer 15 and the riveting limit 20 in the outside, solenoid valve 3 is convenient with valve body 2, two sealing washers 15 play dual seal effect like this, the riveting limit 20, the setting of gasket 21 for sealing washer 15 remains extrusion deformation state all the time, and avoid sealing washer 15 not hard up, displacement and lead to the leakproofness not good, guaranteed the leakproofness between valve rod 1 and the connecting seat 19.

The top end of the iron core 6 extends out of the electromagnetic valve 3 and is covered with a dust cap 22. When the power failure or manual closing is needed, a user pulls the dust cover to drive the iron core 6 to move upwards, the sealing plug 13 is sealed in the air passing hole 10 by matching with the elasticity of the spring 16, the gas passage is closed, the operation is convenient, and the use safety is improved.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a steel bottle trip valve, includes valve rod (1), valve body (2) and solenoid valve (3), valve body (2) have inlet end (4) and give vent to anger end (5), valve body (2) link firmly with solenoid valve (3), the outer end of valve rod (1) links firmly with iron core (6) that solenoid valve (3) had, characterized in that, valve body (2) in have disk seat (7), disk seat (7) separate valve body (2) inner chamber into inlet chamber (8) that are linked together with inlet end (4) and outlet chamber (9) that are linked together with outlet end (5), disk seat (7) have vertical through-going air vent (10), inlet chamber (8) have be located air vent (10) below and vertical mounting hole (11) that set up, inlet chamber (8) still have with inlet port (4) and mounting hole (11) middle part department be linked together, the inner of valve rod (1) pass air vent (10) and be connected with be located in mounting hole (11) air vent (9) seal plug (14) that link firmly sealing plug (14) of valve body (2), an elastic mechanism which provides elasticity to enable the sealing plug (13) to keep sealing in the air passing hole (10) trend is arranged between the sealing plug (13) and the plugging piece (14), and a sealing ring (15) is arranged between the valve rod (1) and the electromagnetic valve (3).

2. The cylinder shut-off valve according to claim 1, characterized in that the elastic means comprise a spring (16), the lower end of the spring (16) abutting against the closure member (14), the upper end of the spring (16) acting against the sealing plug (13).

3. The steel cylinder shut-off valve according to claim 2, characterized in that the sealing plug (13) is embedded in a sealing seat (17), the top of the sealing plug (13) is exposed out of the top surface of the sealing seat (17), and the upper end of the spring (16) is abutted against the sealing seat (17).

4. A cylinder shut-off valve according to claim 3, characterized in that the bottom of the sealing seat (17) has a stem (18) for the spring (16) to nest.

5. The cylinder shut-off valve according to claim 4, characterized in that the closure (14) is a plug screwed to the valve body (2).

6. The steel cylinder shut-off valve according to any one of claims 1 to 5, characterized in that the electromagnetic valve (3) is provided with a connecting seat (19) in threaded connection with the top of the valve body (2), the connecting seat (19) is provided with a mounting cavity for the valve rod (1) to pass through, the end face of the connecting seat (19) facing the valve seat (7) is provided with two sealing rings (15), the valve rod (1) is sleeved with the sealing rings (15), the two sealing rings (15) are both positioned in the mounting cavity and sealed on the inner wall of the mounting cavity, the connecting seat (19) is provided with a riveting edge (20) for riveting the opening of the mounting cavity, and gaskets (21) are arranged between the two sealing rings (15) and between the sealing rings (15) and the riveting edge (20) positioned on the outer side.

7. The steel cylinder shut-off valve according to claim 6, wherein the top end of the iron core (6) extends out of the electromagnetic valve (3) and is covered with a dust cap (22).