CN210372183U - Gas cylinder container valve - Google Patents
Gas cylinder container valve Download PDFInfo
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- CN210372183U CN210372183U CN201920915539.8U CN201920915539U CN210372183U CN 210372183 U CN210372183 U CN 210372183U CN 201920915539 U CN201920915539 U CN 201920915539U CN 210372183 U CN210372183 U CN 210372183U
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Abstract
A gas steel cylinder container valve relates to the field of fire fighting. The piston adopts a double sealing structure in the valve body and is tightly pressed by a pressure spring, so that zero leakage is realized; the valve cover and the pressing cap are in threaded connection, and the releasing membrane is tightly pressed by means of threaded locking, so that the sealing performance is guaranteed; the piston cap is provided with micro air holes to ensure the balance of the pressure difference inside and outside the piston when the system does not work; the safety valve cap forms a safety valve in a threaded edge connection mode through the pressing ring and the safety diaphragm, and the diaphragm breaks to emergently relieve pressure when the pressure is higher than a set value. The container valve has the advantages of simple and reasonable structure, strong working reliability, small driving force and quick and accurate start.
Description
Technical Field
The utility model relates to a fire control field, in particular to gas steel bottle container valve.
Background
In the fire-fighting facilities, the gas fire-extinguishing container is a common fire-extinguishing device, the fire is extinguished by using the flame-retardant gas, the flame-retardant gas is compressed in the fire-extinguishing container, and the gas is controlled to be sprayed in time through a valve on the container, so that the fire-extinguishing purpose is achieved. The container valve is divided into three types of diaphragm type, self-sealing type and pressure arm type according to the structural form: according to the sealing form, the piston sealing and the diaphragm sealing are divided into two types; the device is divided into two types, namely a container valve on a fire extinguishing agent bottle group and a container valve on a driving gas bottle group according to purposes; divide into pneumatic start type, electromagnetism start type, electric explosion start type, manual start type, mechanical start type and combination start type six types according to the starting mode, ubiquitous some problems that are difficult to solve: such as leakage, slow motion, loose parts, poor corrosion resistance, poor safety, etc.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims at providing a gas steel cylinder container valve.
The utility model adopts the technical proposal that: a gas steel cylinder container valve comprises a valve body and a piston arranged in the valve body, and is technically characterized in that one end of the valve body is connected with a valve cover, a pressure cap is screwed outside the valve cover, and a relief diaphragm is arranged between the valve cover and the pressure cap; an O-shaped sealing ring is sleeved on the piston, one end of the piston is connected with a piston cap, a pressure spring is arranged between the other end of the piston and the gland, and the O-shaped sealing ring is tightly pressed in a gap between the piston and the valve body through the pressure spring so that the piston and the valve body are sealed; the air inlet of the valve body is connected with an inflation check valve, the inflation check valve is in threaded connection with an inflation adjusting nut serving as a pressure gauge interface, the air outlet of the valve body is connected with a safety valve cap, and a pressing ring and a safety diaphragm are sequentially arranged at the connection position of the air outlet and the safety valve cap.
In the scheme, an O-shaped sealing ring is arranged in a gap between the outer wall of the piston and the inner wall of the valve body.
In the scheme, the connecting part of the piston, the piston cap and the valve body is provided with another O-shaped sealing ring.
In the scheme, the piston cap is provided with the air holes for balancing the pressure difference between the inside and the outside of the piston.
The utility model has the advantages that: according to the gas steel cylinder container valve, a piston adopts a double-sealing structure in a valve body and is tightly pressed by a pressure spring, so that zero leakage is realized; the valve cover and the pressing cap are in threaded connection, and the releasing membrane is tightly pressed by means of threaded locking, so that the sealing performance is guaranteed; the piston cap is provided with micro air holes to ensure the balance of the pressure difference inside and outside the piston when the system does not work; the safety valve cap forms a safety valve in a threaded edge connection mode through the pressing ring and the safety diaphragm, and the diaphragm breaks to emergently relieve pressure when the pressure is higher than a set value. The container valve has the advantages of simple and reasonable structure, strong working reliability, small driving force and quick and accurate start.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an exploded view of a gas cylinder canister valve according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a gas cylinder canister valve in an embodiment of the invention;
FIG. 3 is another cross-sectional view of a gas cylinder canister valve in an embodiment of the invention;
the numbers in the figure illustrate the following: 1 valve body, 2 safety valve caps, 3 pressure rings, 4 safety diaphragms, 5 discharge outlets, 6 piston caps, 7 pistons, 8 pressure springs, 9 valve covers, 10 discharge diaphragms, 11 pressure caps, 12O-shaped sealing rings, 12' O-shaped sealing rings, 13 inflation check valves and 14 inflation adjusting nuts.
Detailed Description
The above objects, features and advantages of the present invention can be more clearly understood and will be described in more detail with reference to the accompanying drawings 1-3 and the following detailed description.
The gas cylinder container valve used in this embodiment includes a valve body 1 and a piston 7 disposed in the valve body 1. One end of the valve body 1 is in threaded connection with the valve cover 9, and the other end of the valve body 1 is used as a connector with a container. The outer thread of the valve cover 9 is connected with a pressing cap 11, a discharging diaphragm 10 is arranged between the valve cover 9 and the pressing cap 11, the discharging diaphragm 10 is pressed through the thread locking between the valve cover 9 and the pressing cap 11, and the indentation (which indentation) adopts a convex/concave surface (which concave and convex surface) structure, and the detailed explanation is suggested. The pressing cap 11 is in threaded connection with the electromagnet, when fire extinguishment occurs, the electromagnet is driven to act to puncture the discharging membrane 10, the opening of the container valve is achieved, and the gas coming from fire is released.
Adopt double seal structure between piston 7 and the valve body 1, and tightly push up with the pressure spring 8 of installing between piston 7 and gland, cup joint O type sealing washer 12 and 12 'respectively in two piston grooves on the piston 7 in this embodiment, O type sealing washer 12 seals the clearance of piston groove and valve body 1, and O type sealing washer 12' seals the clearance of another piston groove and piston cap 6, valve body 1.
One end of the piston 7 is connected with the piston cap 6, and the piston cap 6 is provided with an air vent so as to ensure that the internal and external pressure difference of the piston 7 is balanced when the system does not work, and the internal and external pressure difference can be rapidly formed during work, so that the piston 7 is pushed to operate to open the container valve.
The air inlet of the valve body 1 is connected with an inflation check valve 13, the inflation check valve 13 is in threaded connection with an inflation adjusting nut 14, and the inflation adjusting nut 14 in the embodiment serves as a pressure gauge interface. The adjusting nut 14 is loosened during inflation and the adjusting nut 14 is tightened after inflation is completed. The internal check valve 13 allows the pressure gauge to be removed when the container is pressurized.
The safety valve cap 2 is connected to the gas outlet of valve body 1, and safety valve cap 2 passes through clamping ring 3 and safety diaphragm 4 and forms the relief valve with the thread edge-to-edge mode, and safety diaphragm 4 breaks emergency pressure release when pressure is higher than the setting value.
The working principle of the gas cylinder container valve in the embodiment is as follows:
after the gas cylinder container valve is installed on the container, the gas cylinder valve has the functions of normally sealing the cylinder, releasing the heptafluoropropane fire extinguishing agent in case of fire and filling heptafluoropropane through the gas cylinder valve. When the fire detector receives a fire alarm in the protection area, the alarm controller outputs DC24V 1A direct current voltage to enable the solenoid valve to act, the bleeder membrane 10 is punctured, pressure difference is rapidly formed, the piston 7 is pushed to move upwards to open the bottle mouth, and the heptafluoropropane fire extinguishing agent is sprayed into the protection area through the connecting hose and the nozzle to extinguish fire.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A gas steel cylinder container valve comprises a valve body and a piston arranged in the valve body, and is characterized in that one end of the valve body is connected with a valve cover, a pressure cap is screwed outside the valve cover, and a relief diaphragm is arranged between the valve cover and the pressure cap; an O-shaped sealing ring is sleeved on the piston, one end of the piston is connected with a piston cap, a pressure spring is arranged between the other end of the piston and the gland, and the O-shaped sealing ring is tightly pressed in a gap between the piston and the valve body through the pressure spring so that the piston and the valve body are sealed; the air inlet of the valve body is connected with an inflation check valve, the inflation check valve is in threaded connection with an inflation adjusting nut serving as a pressure gauge interface, the air outlet of the valve body is connected with a safety valve cap, and a pressing ring and a safety diaphragm are sequentially arranged at the connection position of the air outlet and the safety valve cap.
2. A gas cylinder vessel valve as defined in claim 1 wherein an O-ring seal is provided in the gap between the outer wall of the piston and the inner wall of the valve body.
3. The gas cylinder canister valve of claim 1, wherein another O-ring seal is provided at the connection of the piston with the piston cap and the valve body.
4. The gas cylinder canister valve of claim 1, wherein the piston cap is provided with a vent hole for balancing the pressure difference between the inside and the outside of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920915539.8U CN210372183U (en) | 2019-06-18 | 2019-06-18 | Gas cylinder container valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920915539.8U CN210372183U (en) | 2019-06-18 | 2019-06-18 | Gas cylinder container valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210372183U true CN210372183U (en) | 2020-04-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920915539.8U Active CN210372183U (en) | 2019-06-18 | 2019-06-18 | Gas cylinder container valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210372183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431869A (en) * | 2021-01-05 | 2021-03-02 | 泉州市力普机械科技有限公司 | Wheel edge pneumatic separation device and control method thereof |
-
2019
- 2019-06-18 CN CN201920915539.8U patent/CN210372183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431869A (en) * | 2021-01-05 | 2021-03-02 | 泉州市力普机械科技有限公司 | Wheel edge pneumatic separation device and control method thereof |
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