CN218001151U

CN218001151U - High-pressure hydrogen integrated cylinder valve

Info

Publication number: CN218001151U
Application number: CN202222093923.9U
Authority: CN
Inventors: 杨刚; 闫涵; 朱荣军
Original assignee: Wuxi Weifu High Technology Group Co Ltd
Current assignee: Wuxi Weifu High Technology Group Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-09
Anticipated expiration: 2032-08-10

Abstract

The utility model relates to a high pressure hydrogen integrated cylinder valve, which comprises a housin, installation air inlet and outlet connects on the casing, the solenoid valve, the TPRD device, manual valve, the relief valve, be equipped with the gas cylinder connector on the casing, be equipped with the gas port on the gas cylinder connector, air inlet and outlet connects outer end intercommunication air supply, solenoid valve outer end intercommunication gas port, manual valve control air inlet and outlet connects the inner and solenoid valve inner intercommunication, be equipped with first insurance air flue and second insurance air flue in the casing, first insurance air flue one end intercommunication gas port, TPRD device is installed to the first insurance air flue other end, TPRD device one side is equipped with the exhaust hole, second insurance air flue one end intercommunication gas port, first insurance air flue other end installation relief valve. The utility model has simple structure and small occupied space; the electromagnetic valve is positioned outside the valve body, so that the monitoring and the maintenance are easy; the electromagnetic valve body adopts an integral stainless steel structure, and has compact structure and high strength.

Description

High-pressure hydrogen integrated cylinder valve

Technical Field

The utility model belongs to the technical field of the cylinder valve, a integrated cylinder valve of high-pressure hydrogen is related to.

Background

The high-pressure hydrogen cylinder valve is important in a fuel cell hydrogen supply system, has the main function of intelligently controlling high-pressure hydrogen in a gas cylinder, has the safety functions of real-time temperature detection and feedback, automatic and manual pressure relief and the like, is matched with a new energy fuel cell automobile, and has high use frequency.

The electromagnetic valve has high failure probability due to the relation of working frequency, and the invention patent CN101418910A discloses a vehicle-mounted high-pressure hydrogen storage bottle integrated bottle valve which basically adopts a built-in structure and is not easy to maintain.

Disclosure of Invention

An object of the utility model is to provide an integrated cylinder valve of high-pressure hydrogen can solve and can effectively solve the difficult point of the difficult control of current solenoid valve and maintenance.

According to the utility model provides a technical scheme: the utility model provides a high-pressure hydrogen gas integrated cylinder valve, which comprises a housin, install the business turn over gas connection on the casing, the solenoid valve, the TPRD device, manual valve, the relief valve, be equipped with the gas cylinder connector on the casing, be equipped with the gas port on the gas cylinder connector, business turn over gas connection outer end intercommunication air supply, solenoid valve outer end intercommunication gas port, manual valve control business turn over gas connection inner and the inner intercommunication of solenoid valve, be equipped with first insurance air flue and second insurance air flue in the casing, first insurance air flue one end intercommunication gas port, the TPRD device is installed to the first insurance air flue other end, TPRD device one side is equipped with the exhaust hole, second insurance air flue one end intercommunication gas port, the relief valve is installed to the first insurance air flue other end.

As the utility model discloses a further improvement, the TPRD device threaded connection casing, be equipped with TPRD valve body installation cavity on the casing, first insurance air flue of TPRD valve body installation cavity intercommunication and exhaust hole, the TPRD device includes the TPRD valve body, TPRD valve body periphery and TPRD valve body installation cavity threaded connection, the TPRD valve body, TPRD valve body installation cavity, it is equipped with the TPRD valve rod to slide in the first insurance air flue, the sealing washer is established to the part cover that the TPRD valve rod is located first insurance air flue, be equipped with the spring between TPRD valve rod and the TPRD valve body installation cavity, be equipped with the glass bubble between TPRD valve rod and the TPRD valve body, exhaust hole intercommunication spring place cavity.

As a further improvement of the utility model, the relief valve is in threaded connection with the casing, a pressure relief valve body installation cavity is arranged on the casing and is communicated with a gas inlet and outlet joint and a cavity where the manual valve is located, the relief valve comprises a pressure relief valve body, the periphery of the pressure relief valve body is in threaded connection with the pressure relief valve body installation cavity, the inner periphery of the lower part of the pressure relief valve body is in threaded connection with a pressure relief valve rod seat, a pressure relief valve rod is arranged in the pressure relief valve body and the pressure relief valve rod seat, the pressure relief valve rod rotates and moves in the relief valve body, the pressure relief valve rod is in transmission connection with the pressure relief valve rod seat, and the periphery of the pressure relief valve rod and the inner hole of the pressure relief valve rod seat are in a hexagon shape; the lower end of the pressure relief valve rod seat is provided with a pressure relief valve core, and the pressure relief valve core and the end part of the second safety air passage are provided with a second safety sealing inclined plane which is matched with each other.

As a further improvement of the utility model, the upper end of the pressure relief valve rod extends out of the pressure relief valve body and is provided with an inner hexagonal wrench groove.

As a further improvement of the utility model, manual valve threaded connection casing, be equipped with manual valve body installation cavity on the casing, manual valve body installation cavity intercommunication business turn over gas connection place cavity and solenoid valve place cavity, manual valve includes the manual valve body, manual valve body periphery and manual valve body installation cavity threaded connection, the internal peripheral threaded connection manual valve rod seat in manual valve body lower part, be equipped with the manual valve rod in manual valve body, the manual valve rod seat, the manual valve rod rotates and moves in the manual valve body, manual valve rod transmission connects the manual valve rod seat, the manual valve rod periphery, manual valve rod seat hole is the hexagonal of adaptation; and a manual valve core is arranged at the lower end of the manual valve rod seat, and a matched manual valve sealing inclined plane is arranged at the end part of a channel for communicating the chamber where the electromagnetic valve is arranged on the manual valve core.

As a further improvement of the utility model, the upper end of the manual valve rod extends out of the manual valve body and is provided with an inner hexagonal wrench groove.

As a further improvement of the utility model, a one-way exhaust valve is installed on the shell, the one-way exhaust valve comprises a one-way valve cover, a one-way valve body installation cavity is arranged on the shell, the one-way valve body installation cavity is communicated with the cavity where the manual valve is located, the one-way valve cover is in threaded connection with the one-way valve body installation cavity, a one-way valve core is installed in the one-way valve body installation cavity in a sliding manner, a one-way valve spring is arranged between the one-way valve core and the one-way valve cover, and the end part of a channel of the cavity where the one-way valve core and the one-way valve body installation cavity are communicated with the manual valve is provided with an adaptive one-way valve sealing inclined plane; a one-way valve cover air passage is arranged in the one-way valve cover and is communicated with the middle part of the one-way valve body installation cavity and the outer side of the shell; a one-way valve core air passage is arranged in the one-way valve core and is communicated with the middle part and the upper part of the one-way valve body installation cavity.

As a further improvement of the utility model, solenoid valve threaded connection casing, be equipped with the solenoid valve installation cavity on the casing, manual valve place cavity of solenoid valve installation cavity intercommunication and gas port, the solenoid valve includes solenoid valve body, solenoid valve body the inner and solenoid valve installation cavity threaded connection, solenoid valve body middle part periphery is from interior to the overcoat and is established the coil, the coil cover, solenoid valve body outer end threaded connection block, the block supports the coil cover casing, it is equipped with solenoid valve core to slide from inside to outside along the axis in the solenoid valve body, the movable iron core, quiet iron core, the slidable mounting spring holder in the movable iron core, be equipped with reset spring between spring holder one end and the quiet iron core, the sealed pad of spring holder other end installation is sealed, sealed pad one end supports the movable iron core, solenoid valve core tip and the passageway tip that communicates manual valve place cavity are equipped with the sealed inclined plane of solenoid valve of adaptation, run through the pilot hole in the solenoid valve core, pilot hole one end intercommunication is expert at manual valve place cavity, the other end face contact with sealed pad.

As the utility model discloses a further improvement, quiet iron core is joined in marriage with solenoid valve body interference pressure and is joined in marriage as an organic wholely, installs the sealing washer between the solenoid valve case solenoid valve body.

As a further improvement of the utility model, the pilot hole is in a ladder shape with a big front and a small back.

The positive progress effect of this application lies in:

the utility model has simple structure and small occupied space; the electromagnetic valve is positioned outside the valve body, so that the monitoring and the maintenance are easy; the electromagnetic valve body adopts an integral stainless steel structure, and has compact structure and high strength.

Drawings

Fig. 1 is a front view of the structure of the present invention.

FIG. 2 is a cross-sectional view of a filter, manual valve, TPRD device.

Fig. 3 is a sectional view of the solenoid valve.

The device comprises an air inlet joint, an air outlet joint, a 2 electromagnetic valve, a 3 shell, a 4

TPRD device

4,5 temperature sensor, a 6 manual valve, a 7

decompression valve

7,8 filter, a 9 electromagnetic valve body, a 10 cover cap, a 11 static iron core 11, a 12 return spring, a 13 movable iron core, a 14 sealing gasket, a 15 main valve, a 16 one-way valve core, a 17 one-way valve spring and a 18 one-way valve cover, which are shown in the attached drawings.

Detailed Description

It should be noted that, in case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate in order to facilitate the embodiments of the invention described herein. Furthermore, "including" and "having," and like terms, mean that "including" and "having," in addition to those already recited in "including" and "having," other content not already recited in the list; for example, a process, method, system, article, or apparatus that may comprise a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

In the following description of the embodiment, the coordinates refer to fig. 1, where the direction from the inside of the vertical paper in fig. 1 is taken as the front, the direction from the outside of the vertical paper is taken as the back, the left-right direction in fig. 1 is taken as the left-right direction, and the up-down direction in fig. 1 is taken as the up-down direction.

As shown in fig. 1, the utility model relates to a high pressure hydrogen gas integrated cylinder valve, which comprises a housin 3, install into on the casing 3 and give vent to anger and connect 1, solenoid valve 2, TPRD device 4, manual valve 6, relief valve 7, be equipped with gas cylinder connector 27 on the casing 3, be equipped with gas port 28 on the gas cylinder connector 27, business turn over gas connector 1 outer end intercommunication air supply, 2 outer ends of solenoid valve intercommunication gas port 28, manual valve 6 control is given vent to anger and is connected 1 inner and solenoid valve 2 inner's intercommunication, be equipped with first insurance air flue and second insurance air flue in the casing 3, first insurance air flue one end intercommunication gas port 28, TPRD device 4 is installed to the first insurance air flue other end, TPRD device 4 one side is equipped with exhaust hole 3-1, second insurance air flue one end intercommunication gas port 28, first insurance air flue other end installation relief valve 7.

As shown in fig. 2, the TPRD device 4 is in threaded connection with the housing 3, a TPRD valve body installation cavity is arranged on the housing 3, the TPRD valve body installation cavity is communicated with the first safety air passage and the exhaust hole 3-1, the TPRD device 4 comprises a TPRD valve body 26, the periphery of the TPRD valve body 26 is in threaded connection with the TPRD valve body installation cavity, the TPRD valve body 26, the TPRD valve body installation cavity and the first safety air passage are provided with a TPRD valve rod 23 in a sliding mode, a sealing ring is sleeved on the part, located in the first safety air passage, of the TPRD valve rod 23, a spring 24 is arranged between the TPRD valve rod 23 and the TPRD valve body installation cavity, and a glass bulb 25 is arranged between the TPRD valve rod 23 and the TPRD valve body 26. Vent 3-1 communicates with the chamber in which spring 24 is located.

One end of the spring 24 is propped against the inner end wall of the TPRD valve body installation cavity, and the other end is propped against the peripheral flange of the TPRD valve rod 23. The spring 24 pushes the TPRD valve rod 23 outwards, so that the TPRD valve rod 23, the glass bulb 25 and the TPRD valve body 26 are fixed relatively.

When the temperature of the internal or external environment of the high-pressure gas cylinder reaches 110 +/-5 ℃, the high-pressure gas cylinder is activated to prevent accidents such as explosion and explosion caused by overheating of hydrogen in the hydrogen storage cylinder, when the temperature reaches the excitation temperature, the glass bulb 25 is broken, the gas pressure overcomes the spring force of the spring 24 to move the TPRD valve rod 23 outwards, the TPRD valve rod 23 is moved out of the first safety air channel, the first safety air channel is communicated with the exhaust hole 3-1, and the gas in the gas cylinder is exhausted out of the shell 3.

7 threaded connection casings 3 of relief valve, be equipped with the pressure release valve body installation cavity on casing 3, the intercommunication of pressure release valve body installation cavity is admitted air and is connected 1 and the cavity at 6 places of manual valve, relief valve 7 includes pressure

release valve body

19, 19 peripheries of pressure release valve body and pressure release valve body installation cavity threaded connection, 19 internal peripheral threaded connection pressure release valve rod seats 21 in the lower part of pressure release valve body, pressure release valve body 19, be equipped with pressure release valve rod 20 in the pressure release valve rod seat 21, pressure release valve rod 20 rotates and removes in pressure release valve body 19, pressure release valve rod seat 21 is connected in the transmission of pressure release valve rod 20, pressure release valve rod 20 periphery, 21 holes of pressure release valve rod seat are the six arriss of adaptation. The lower end of the pressure relief valve rod seat 21 is provided with a pressure relief valve core 22, and the end parts of the pressure relief valve core 22 and the second safety air passage are provided with a second safety sealing inclined plane which is matched with each other.

In order to rotate the pressure relief valve rod 20, the upper end of the pressure relief valve rod 20 extends out of the pressure relief valve body 19 and is provided with an inner hexagonal wrench groove 20-1.

The manual valve 6 is in threaded connection with the shell 3, a manual valve body installation cavity is formed in the shell 3, the manual valve body installation cavity is communicated with a cavity where the air inlet and outlet connector 1 is located and a cavity where the electromagnetic valve 2 is located, the manual valve 6 comprises a manual valve body, the periphery of the manual valve body is in threaded connection with the manual valve body installation cavity, the inner periphery of the lower portion of the manual valve body is in threaded connection with a manual valve rod seat, a manual valve rod is arranged in the manual valve body and the manual valve rod seat, the manual valve rod rotates and moves in the manual valve body, the manual valve rod is in transmission connection with the manual valve rod seat, and the periphery of the manual valve rod and the inner hole of the manual valve rod seat are in a hexagonal shape matched with each other. And a manual valve core is arranged at the lower end of the manual valve rod seat, and a matched manual valve sealing inclined plane is arranged at the end part of a channel for communicating the chamber where the electromagnetic valve 2 is arranged.

In order to rotate the manual valve rod conveniently, the upper end of the manual valve rod extends out of the manual valve body and is provided with an inner hexagonal wrench groove.

Under normal conditions, the manual valve 6 is in a long-open state, the manual valve core is separated from the end part of the channel of the chamber where the communication electromagnetic valve 2 is located, and the chamber where the inlet and outlet gas joint 1 is located is communicated with the chamber where the communication electromagnetic valve 2 is located.

To prevent the need for venting the pressure relief valve 7, the manual valve 6 is in a closed state. Install one-way exhaust valve on casing 3, one-way exhaust valve includes check valve lid 18, be equipped with the check valve body installation cavity on casing 3, the chamber at manual valve 6 place of check valve body installation cavity intercommunication, check valve lid 18 and check valve body installation cavity threaded connection, slidable mounting check valve core 16 in the check valve body installation cavity, be equipped with check valve spring 17 between check valve core 16 and the check valve lid 18, the passageway tip of check valve core 16 and the chamber at manual valve 6 place of check valve installation cavity intercommunication is equipped with the sealed inclined plane of check valve of adaptation. A one-way valve cover air passage is arranged in the one-way valve cover 18 and is communicated with the middle part of the one-way valve body installation cavity and the outer side of the shell 3; a one-way valve core air passage is arranged in the one-way valve core 16 and is communicated with the middle part and the upper part of the one-way valve body installation cavity.

In the normal state, the check valve spring 17 pushes the check valve spool 16 to block the passage communicating with the chamber where the manual valve 6 is located. When the manual valve 6 is closed and gas in the chamber of the manual valve 6 needs to be discharged, the gas in the chamber of the manual valve 6 overcomes the spring force of the one-way valve spring 17, the one-way valve core 16 is pushed outwards, the sealing inclined plane of the one-way valve is separated, and the gas passes through the air passage of the one-way valve core and the air passage of the one-way valve cover and is discharged out of the shell 3.

As shown in fig. 3, the solenoid valve 2 is connected to the housing 3 by a thread, a solenoid valve installation cavity is arranged on the housing 3, the solenoid valve installation cavity is communicated with a chamber where the manual valve 6 is located and a gas port 28, the solenoid valve 2 includes a solenoid valve body 9, the inner end of the solenoid valve body 9 is connected to the solenoid valve installation cavity by a thread, a coil and a coil sleeve are sleeved on the outer periphery of the middle portion of the solenoid valve body 9 from inside to outside, the outer end of the solenoid valve body 9 is connected to a cap 10 by a thread, the coil sleeve is abutted to the housing 3 by the cap 10, a solenoid valve core 15, a movable iron core 13 and a stationary iron core 11 are slidably arranged in the solenoid valve body 9 along the axis from inside to outside, a spring seat is slidably arranged in the movable iron core 13, a return spring 12 is arranged between one end of the spring seat and the stationary iron core 11, a sealing pad 14 is arranged at the other end of the spring seat, one end of the sealing pad is abutted to the movable iron core 13, a solenoid valve sealing inclined plane adapted to the end of a passage communicating with the chamber where the manual valve 6 is located is arranged at the end of the solenoid valve 15, a first guide hole 15-1 penetrates through the solenoid valve 15, one end is communicated with the chamber where the manual valve 6, and the other end of the guide hole is communicated with the sealing pad 14 in contact with the end surface.

The static iron core 11 and the electromagnetic valve body 9 are in interference fit into a whole, and a sealing ring is arranged between the electromagnetic valve body 9 and the electromagnetic valve core 15. The pilot hole 15-1 is stepped in a front-large and rear-small manner.

The electromagnetic valve 2 is electrified, the coil enables the static iron core 11 to generate electromagnetic force, the electromagnetic force overcomes the air pressure, the spring force of the return spring 12 and the friction force of the movable iron core 13 to draw the movable iron core 13 close to the static iron core 11, the pilot hole 15-1 is separated from the end face of the sealing gasket 14, the pilot hole 15-1 of the electromagnetic valve core 15 is opened, the gas between the electromagnetic valve core 15 and the movable iron core 13 flows out from the gas in the pilot hole 15-1 of the electromagnetic valve core 15, the pressure between the electromagnetic valve core 15 and the movable iron core 13 is reduced, when the air pressure generated by the pressure difference between the pressure in the gas cylinder and the pressure in the pilot hole 15-1 of the electromagnetic valve core 15 is greater than the friction force of the electromagnetic valve core 15, the outer side of the electromagnetic valve core 15 moves, the sealing inclined plane of the electromagnetic valve is separated, and the chamber where the manual valve 6 is communicated with the gas port 28; when the electromagnetic valve 2 is powered off, the pressure in the gas cylinder is equal to the pressure of the pilot hole 15-1 and the outer port of a channel communicated with the electromagnetic valve installation cavity on the shell 3, the spring force of the reset spring 12 overcomes the friction force of the movable iron core 13 to push the electromagnetic valve core 15 to be tightly attached to the shell 3, the sealing inclined surface of the electromagnetic valve is attached, one end of the pilot hole 15-1 is in contact with the end surface of the sealing gasket 14, and the chamber where the manual valve 6 is located is separated from the gas port 28.

The temperature sensor 5 is fastened to the gas cylinder connection port 27. During operation, the temperature sensor 5 extends into the gas cylinder to monitor the temperature of the gas cylinder.

The filter 8 is integrated in the air inlet and outlet connector 1. The filter 8 adopts a stainless steel sintering net filter element, the filtering precision reaches 10 mu m, and the gas is purified and the impurities are intercepted.

The working process of the utility model is as follows:

the manual valve 6 is normally in a normally open state, and the hydrogen source can be manually cut off through the manual valve 6 when the electromagnetic valve 2 fails. The electromagnetic valve 2 and the manual valve 6 work together, so that hydrogen leakage can be effectively avoided. When the electromagnetic valve 2 is in failure or routine maintenance, the high-pressure hydrogen in the cylinder valve can be effectively prevented from escaping by closing the manual valve 6; the pressure release valve 7 is normally in a normally closed state, the pressure release valve core 22 abuts against the end of the second safety air channel, the second safety sealing inclined plane is closed, when the TPRD device 4 fails, the pressure release valve rod 20 is rotated to drive the pressure release valve rod seat 21 to rotate, the pressure release valve rod seat 21 moves upwards while rotating, the pressure release valve core 22 is separated from the end of the second safety air channel, the second safety sealing inclined plane is opened, the second safety air channel is communicated with the chamber where the manual valve 6 is located, and high-pressure hydrogen in the cylinder valve is discharged into and out of the air connector 1 through the chamber where the manual valve 6 is located.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. The utility model provides a high-pressure hydrogen gas integrated cylinder valve, a serial communication port, including casing (3), install into gas connection (1) on casing (3), solenoid valve (2), TPRD device (4), manual valve (6), relief valve (7), be equipped with gas cylinder connector (27) on casing (3), be equipped with gas port (28) on gas cylinder connector (27), business turn over gas connection (1) outer end intercommunication air supply, solenoid valve (2) outer end intercommunication gas port (28), manual valve (6) control the intercommunication of gas connection (1) inner and solenoid valve (2) inner, be equipped with first insurance air flue and second insurance air flue in casing (3), first insurance air flue one end intercommunication gas port (28), TPRD device (4) is installed to the first insurance air flue other end, TPRD device (4) one side is equipped with exhaust hole (3-1), second insurance air flue one end intercommunication gas port (28), first insurance air flue other end installation relief valve (7).

2. The high-pressure hydrogen integrated cylinder valve of claim 1, wherein the TPRD device (4) is in threaded connection with the housing (3), a TPRD valve body installation cavity is formed in the housing (3), the TPRD valve body installation cavity is communicated with the first safety air channel and the exhaust hole (3-1), the TPRD device (4) comprises a TPRD valve body (26), the periphery of the TPRD valve body (26) is in threaded connection with the TPRD valve body installation cavity, the TPRD valve body (26), the TPRD valve body installation cavity and the first safety air channel are internally provided with a TPRD valve rod (23) in a sliding manner, a sealing ring is sleeved on a part, located in the first safety air channel, of the TPRD valve rod (23), a spring (24) is arranged between the TPRD valve body installation cavity and the TPRD valve body installation cavity, a glass bubble (25) is arranged between the TPRD valve rod (23) and the TPRD valve body (26), and the exhaust hole (3-1) is communicated with a cavity where the spring (24) is located.

3. The high-pressure hydrogen integrated cylinder valve according to claim 1, characterized in that the pressure relief valve (7) is in threaded connection with the housing (3), a pressure relief valve body installation cavity is arranged on the housing (3), the pressure relief valve body installation cavity is communicated with a cavity in which the air inlet and outlet connector (1) and the manual valve (6) are located, the pressure relief valve (7) comprises a pressure relief valve body (19), the periphery of the pressure relief valve body (19) is in threaded connection with the pressure relief valve body installation cavity, the inner periphery of the lower part of the pressure relief valve body (19) is in threaded connection with the pressure relief valve rod seat (21), a pressure relief valve rod (20) is arranged in the pressure relief valve body (19) and the pressure relief valve rod seat (21), the pressure relief valve rod (20) rotates and moves in the pressure relief valve body (19), the pressure relief valve rod (20) is in transmission connection with the pressure relief valve rod seat (21), and the periphery of the pressure relief valve rod (20) and the inner hole of the pressure relief valve rod seat (21) are in a matched hexagonal shape; the lower end of the pressure relief valve rod seat (21) is provided with a pressure relief valve core (22), and the end parts of the pressure relief valve core (22) and the second safety air passage are provided with a second safety sealing inclined surface which is matched with each other.

4. A high-pressure hydrogen integrated cylinder valve according to claim 3, characterized in that the upper end of the pressure relief valve rod (20) extends out of the pressure relief valve body (19) and is provided with an inner hexagonal wrench groove (20-1).

5. The high-pressure hydrogen integrated cylinder valve according to claim 1, wherein the manual valve (6) is in threaded connection with the housing (3), a manual valve body installation cavity is formed in the housing (3), the manual valve body installation cavity is communicated with a cavity where the gas inlet and outlet connector (1) is located and a cavity where the electromagnetic valve (2) is located, the manual valve (6) comprises a manual valve body, the periphery of the manual valve body is in threaded connection with the manual valve body installation cavity, the inner periphery of the lower portion of the manual valve body is in threaded connection with a manual valve rod seat, a manual valve rod is arranged in the manual valve body and the manual valve rod seat, the manual valve rod rotates and moves in the manual valve body, the manual valve rod is in transmission connection with the manual valve rod seat, and the periphery of the manual valve rod and an inner hole of the manual valve rod seat are in a matched hexagonal shape; the lower end of the manual valve rod seat is provided with a manual valve core, and the end part of a channel where the manual valve core and the communicating electromagnetic valve (2) are located is provided with a matched manual valve sealing inclined plane.

6. A high-pressure hydrogen integrated cylinder valve according to claim 5, characterized in that the upper end of the manual valve rod extends out of the manual valve body and is provided with an inner hexagonal wrench groove.

7. The integrated cylinder valve for high-pressure hydrogen as claimed in claim 1, wherein the housing (3) is provided with a one-way exhaust valve, the one-way exhaust valve comprises a one-way valve cover (18), the housing (3) is provided with a one-way valve body installation cavity which is communicated with the cavity where the manual valve (6) is located, the one-way valve cover (18) is in threaded connection with the one-way valve body installation cavity, a one-way valve core (16) is slidably installed in the one-way valve body installation cavity, a one-way valve spring (17) is arranged between the one-way valve core (16) and the one-way valve cover (18), and the end of a channel of the one-way valve core (16) and the one-way valve body installation cavity which are communicated with the cavity where the manual valve (6) is located is provided with an adaptive one-way valve sealing inclined surface; a one-way valve cover air passage is arranged in the one-way valve cover (18) and is communicated with the middle part of the one-way valve body installation cavity and the outer side of the shell (3); a one-way valve core air passage is arranged in the one-way valve core (16) and is communicated with the middle part and the upper part of the one-way valve body installation cavity.

8. The integrated cylinder valve for high-pressure hydrogen as claimed in claim 1, wherein the solenoid valve (2) is connected with the housing (3) by screw threads, a solenoid valve installation cavity is arranged on the housing (3) and is communicated with the chamber where the manual valve (6) is located and the gas port (28), the solenoid valve (2) comprises a solenoid valve body (9), the inner end of the solenoid valve body (9) is connected with the solenoid valve installation cavity by screw threads, a coil and a coil sleeve are sleeved on the periphery of the middle part of the solenoid valve body (9) from inside to outside, the outer end of the solenoid valve body (9) is connected with the cap (10) by screw threads, the coil sleeve is pressed against the housing (3) by the cap (10), a solenoid valve core (15) is arranged in the solenoid valve body (9) in a sliding manner from inside to outside along the axis, the movable iron core (13) and the static iron core (11) are arranged, the spring seat is slidably mounted in the movable iron core (13), a reset spring (12) is arranged between one end of the spring seat and the static iron core (11), a sealing gasket (14) is mounted at the other end of the spring seat, one end of the sealing gasket (14) is abutted against the movable iron core (13), the end part of the electromagnetic valve core (15) and the end part of a channel communicated with a cavity where the manual valve (6) is located are provided with adaptive electromagnetic valve sealing inclined planes, a pilot hole (15-1) penetrates through the electromagnetic valve core (15), one end of the pilot hole (15-1) is communicated with the cavity where the manual valve (6) is located, and the other end of the pilot hole is in end surface contact with the sealing gasket (14).

9. The integrated cylinder valve for high pressure hydrogen as claimed in claim 8, wherein the static iron core (11) and the electromagnetic valve body (9) are integrated by interference press fit, and a sealing ring is installed between the electromagnetic valve core (15) and the electromagnetic valve body (9).

10. The high pressure hydrogen integrated cylinder valve according to claim 8, wherein the pilot hole (15-1) is stepped in a front-to-back direction.