CN114791046A - Automatic opening and closing valve for gas cylinder - Google Patents
Automatic opening and closing valve for gas cylinder Download PDFInfo
- Publication number
- CN114791046A CN114791046A CN202210549846.5A CN202210549846A CN114791046A CN 114791046 A CN114791046 A CN 114791046A CN 202210549846 A CN202210549846 A CN 202210549846A CN 114791046 A CN114791046 A CN 114791046A
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- China
- Prior art keywords
- gas cylinder
- valve body
- valve
- cavity
- side wall
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000006835 compression Effects 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/105—Three-way check or safety valves with two or more closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0473—Multiple-way safety valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention provides an automatic opening and closing valve for a gas cylinder, which comprises a valve body, wherein the upper and lower ports in the cavity of the valve body are respectively provided with a sealing rubber strip for connecting an inflating device and a clamping sleeve for connecting the gas cylinder; a pressure relief hole for arranging a pressure relief assembly is formed along the outer side wall of the valve body and communicated with the cavity of the valve body; the guide rod is arranged at the middle end part in the cavity of the valve body and can move up and down along the vertical direction in the cavity, and the middle end part of the side wall of the guide rod is provided with a butting part; the valve core is arranged in the abutting part groove, and the inner side wall of the valve body is provided with a limiting part for clamping the valve core when the valve body is in a closed state; a spring fixing seat arranged at the upper end of the side wall of the guide rod; the first compression spring is sleeved on the side wall of the guide rod and is used for connecting one end of the first compression spring with the spring fixing seat and abutting against the limiting part at the other end of the first compression spring; the automatic opening and closing valve realizes the automatic opening and closing of the valve through the matching use of the first compression spring, the second compression spring and the guide rod, thereby improving the stable output of the automatic opening and closing valve.
Description
Technical Field
The invention mainly relates to the field of gas cylinder valves, in particular to an automatic opening and closing valve for a gas cylinder.
Background
The gas cylinder is a movable pressure container with a main body structure in a bottle shape and generally filled with gas (such as compressed gas, liquefied gas, dissolved and adsorbed gas and the like).
The valve is a device for switching on and off gas in the conveying process, and the gas in the gas cylinder is released for use by opening the valve or is injected into the gas cylinder for other equipment to use.
However, the conventional valve generally realizes the opening and closing of the valve by rotating, but cannot be actively adjusted when meeting some special conditions, and when a conveying pipeline is broken or a connecting port of a cylinder valve is loosened, the valve is still in an open state, so that excessive gas leakage is caused, and even accidents are caused.
On the other hand, when the injected gas or the gas cylinder is abnormal, the gas pressure in the gas cylinder may be too high, and if the gas pressure is not released in time, the gas cylinder may explode. In the prior art, manual pressure relief is adopted, so that pressure cannot be relieved in time if air pressure is judged by mistake, time delay can be caused in emergency, and the pressure relief speed in the prior art is not high enough.
Therefore, the invention provides the automatic opening and closing valve for the gas cylinder, which has the advantages of automatic adjustment, opening and closing and automatic and rapid pressure relief.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the automatic opening and closing valve for the gas cylinder, which realizes the purposes of automatically adjusting the opening and closing of the valve and automatically and quickly deflating, and solves the problems that the opening and closing of the valve are realized through rotation and the automatic and quick deflation cannot be realized.
In order to realize the purposes of opening and closing the automatic adjusting valve and automatically and quickly deflating, the invention provides the following technical scheme: an automatic opening and closing valve for a gas cylinder comprises a valve body, wherein the upper and lower port parts in a cavity of the valve body are respectively provided with a sealing rubber strip for connecting an inflating device and a clamping sleeve for connecting the gas cylinder;
a pressure relief hole for arranging a pressure relief assembly is formed along the outer side wall of the valve body and is communicated with the valve body cavity;
the guide rod is arranged at the middle end part in the cavity of the valve body and can move up and down along the vertical direction in the cavity, and the middle end part of the side wall of the guide rod 4 is provided with a butting part;
the valve core is arranged in the abutting joint groove, and the inner side wall of the valve body is provided with a limiting part for clamping the valve core when the valve body is in a closed state;
a spring fixing seat arranged at the upper end of the side wall of the guide rod 4;
the first compression spring is sleeved on the side wall of the guide rod and is used for connecting one end of the first compression spring with the spring fixing seat 8 and enabling the other end of the first compression spring to be abutted to the limiting part.
Furthermore, the clamping sleeve consists of a guide sleeve and an extension pipe which are connected up and down, the lower end of the side wall of the guide rod is inserted in the guide sleeve in a sliding mode, and the extension pipe penetrates through the valve body and extends into the gas cylinder.
Furthermore, a second compression spring is arranged in the guide sleeve cavity, one end of the second compression spring is connected with the guide rod, and the other end of the second compression spring is abutted to the bottom in the guide sleeve cavity.
Furthermore, above-mentioned pressure release hole is located spacing portion below, and the pressure release subassembly is established at the pressure release downthehole sliding ring, the fixed sliding ring positioning seat of establishing in pressure release hole port department including sliding to and locate the pressure release spring of connecting sliding ring and sliding ring positioning seat.
Furthermore, the sliding ring positioning seat is provided with an exhaust hole at the axis extending position for communicating with the pressure relief hole.
Furthermore, a buffer plate is arranged in the pressure relief hole and is located on one side, far away from the slip ring positioning seat, of the slip ring.
Furthermore, a sealing sleeve is arranged in the cavity and is positioned between the sealing rubber strip and the spring fixing seat.
Furthermore, the lower end of the outer side wall of the valve body is provided with a thread for connecting a gas cylinder.
Furthermore, a contact block is arranged on the axis of the upper surface of the spring fixing seat.
The invention has the beneficial effects that:
firstly, the invention aims at solving the problems that the opening and closing of the valve are realized by rotation and the valve cannot automatically and quickly leak air, when the automatic opening and closing valve is connected with an inflating device, the valve core of the guide rod is far away from the limiting part due to the gravity drop of the guide rod, gas flows into the gas cylinder from the valve body, when the gas in the gas cylinder is sufficient, the guide rod is reset by the action of the first compression spring, the limiting part clamps the valve core, so that the automatic opening and closing of the valve are realized, and meanwhile, the second compression spring is arranged, so that the guide rod has bidirectional elastic acting force, and the quick opening and closing of the valve in the using process are ensured;
furthermore, through the arrangement of the pressure relief device, automatic and rapid pressure relief can be realized, the stability of the air pressure in the bottle is ensured, and after the pressure relief is finished, the pressure relief spring provides elastic reaction force to automatically close the pressure relief device, so that unnecessary excretion is reduced, and the safety is ensured;
furthermore, the sealing performance of the automatic opening and closing valve in the using process is improved by the matching of the sealing rubber strip and the sealing sleeve and the clamping sleeve.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a partial schematic view of the present invention;
in the figure, the position of the first and second end faces,
1. a valve body; 2. sealing rubber strips; 3. a card sleeve; 4. a guide bar; 6. a valve core; 7. a limiting part; 8. a spring fixing seat; 9. a first compression spring; 10. a second compression spring; 11. a slip ring; 12. a slip ring positioning seat; 13. a pressure relief spring; 14. an exhaust hole; 15. a buffer plate; 16. sealing sleeves; 17. a thread; 18. and (6) a contact block.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
As shown in fig. 1-3, the present invention comprises a valve body 1, a guide rod 4, a valve core 6, a spring fixing seat 8, a first compression spring 9 and a pressure relief hole.
The guide rod 4 is arranged at the middle end part in the cavity of the valve body 1 and can move up and down along the vertical direction in the cavity, and the middle end part of the side wall of the guide rod 4 is provided with a butting part; a valve core 6 arranged in the abutting part groove; in order to prevent gas leakage, the inner side wall of the valve body 1 has a stopper portion 7 for catching the valve element 6 when the valve body 1 is in a closed state.
The spring fixing seat 8 is arranged at the upper end of the side wall of the guide rod 4 and is used for fixing the vector direction of the stretching or compressing of the spring; the cover is established on the guide arm 4 lateral wall and is used for one end to be connected with spring fixing base 8, and the other end makes guide arm 4 possess the elastic force with spacing portion 7 inconsistent first compression spring 9.
The upper port and the lower port in the cavity of the valve body 1 are respectively provided with a sealing rubber strip 2 for connecting an inflating device and a clamping sleeve 3 for connecting a gas cylinder, so that the sealing performance of the valve body 1, the inflating device and the gas cylinder is enhanced.
A sealing sleeve 16 is also arranged in the cavity of the valve body 1, the sealing sleeve 16 is positioned between the sealing rubber strip 2 and the spring fixing seat 8 and is matched with the sealing rubber strip 2 for use, and the sealing performance of the connection between the automatic opening and closing valve and the inflating device is further improved;
the cutting sleeve 3 is composed of a guide sleeve and an extension pipe which are connected up and down, the lower end of the side wall of the guide rod 4 is inserted in the guide sleeve in a sliding mode, a second compression spring 10 which enables the guide rod 4 to have bidirectional elastic acting force is arranged in the cavity of the guide sleeve, meanwhile, one spring is prevented from losing efficacy, and the other spring can also provide elastic acting force; one end of a second compression spring 10 is connected with the guide rod 4, and the other end of the second compression spring is abutted against the bottom in the cavity of the guide sleeve; the extension pipe penetrates through the valve body 1 and extends into the gas cylinder, and the sealing performance of the connection between the automatic opening and closing valve and the gas cylinder is further improved.
The lower end of the outer side wall of the valve body 1 is provided with a thread 17 for connecting a gas cylinder, and the valve has the advantages of simple structure, reliable connection and convenient assembly and disassembly.
A pressure relief hole for arranging a pressure relief assembly is formed along the outer side wall of the valve body 1 and communicated with the cavity of the valve body 1; the pressure relief hole is positioned below the limiting part 7, the pressure relief assembly comprises a sliding ring 11, a sliding ring positioning seat 12 and a pressure relief spring 13, the sliding ring 11 is preferably made of aluminum, and a layer of oxidation film for preventing metal corrosion can be formed in humid air.
The sliding ring 11 is arranged in the pressure relief hole in a sliding mode, the sliding ring positioning seat 12 is fixedly arranged at the port of the pressure relief hole, and the pressure relief spring 13 is arranged on the sliding ring 11 and the sliding ring positioning seat 12 in a connecting mode, so that the sliding ring 11 has elastic acting force; a buffer plate 15 is arranged in the pressure relief hole, and the buffer plate 15 is positioned on one side of the slip ring 11, which is far away from the slip ring positioning seat 12, so that the pressure relief spring 13 is prevented from contacting with the inner side wall of the pressure relief hole, and unnecessary damage is prevented; an exhaust hole 14 for communicating with the pressure relief hole is formed in the axial center of the slip ring positioning seat 12, and when the pressure relief spring 13 is in a compressed state, the exhaust hole 14 starts pressure relief work.
In addition, when the gas cylinder provides gas for other equipment, the upper surface axis of the spring fixing seat 8 is provided with the contact block 18, the valve body 1 is connected with the gas cylinder, only the contact block 18 needs to be contacted, the guide rod 4 descends, the valve core 6 is automatically opened, the gas in the gas cylinder can be flushed into other equipment needing inflation through the valve 1, when the inflation is completed, the equipment needing inflation only needs to be pulled out, the spring on the guide rod 4 enables the equipment to automatically reset, and the valve is automatically closed.
In use,
when the gas cylinder needs to be inflated, the gas cylinder is connected with a gas supply device through the automatic opening and closing valve, gas in the gas supply device exerts pressure on the spring fixing seat 8, so that the guide rod 4 descends due to gravity, the valve core 6 is automatically opened, and the gas is flushed into the gas cylinder through the valve body 1;
when the gas cylinder is full of gas, the gas supply device is pulled out, the spring on the guide rod 4 automatically resets the gas supply device, and the valve is automatically closed.
In addition, when the air pressure in the gas cylinder is too high, the gas pushes the buffer plate 15, the sliding ring 11 is displaced under the acting force of the pressure relief spring 13, the sliding ring is not blocked at the joint of the pressure relief hole and the cavity of the valve body 1, a gap is formed between the sliding ring 11 and the pressure relief hole, the gas flows out from the exhaust hole 14 through the gap, and after the gas is released, the pressure relief spring 13 still pushes the sliding ring 11, so that the buffer plate 15 is sealed at the joint of the pressure relief hole and the cavity of the valve body 1, and the automatic pressure relief is realized.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Those skilled in the art can modify and/or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (9)
1. An automatic open-close valve for a gas cylinder is characterized by comprising
The gas cylinder valve comprises a valve body (1), wherein a sealing rubber strip (2) used for connecting a gas supply device and a clamping sleeve (3) used for connecting a gas cylinder are respectively arranged at the upper and lower ports in a cavity of the valve body (1);
a pressure relief hole for arranging a pressure relief assembly is formed along the outer side wall of the valve body (1), and the pressure relief hole is communicated with the cavity of the valve body (1);
the guide rod (4) is arranged at the middle end part in the cavity of the valve body (1) and can move up and down along the vertical direction in the cavity, and the middle end part of the side wall of the guide rod (4) is provided with a butting part;
the valve core (6) is arranged in the abutting part groove, and the inner side wall of the valve body (1) is provided with a limiting part (7) which is used for clamping the valve core (6) when the valve body (1) is in a closed state;
a spring fixing seat (8) arranged at the upper end of the side wall of the guide rod (4);
the cover is established on guide arm (4) lateral wall and is used for one end to be connected with spring fixing base (8), first compression spring (9) that the other end and spacing portion (7) are inconsistent.
2. The automatic opening and closing valve for the gas cylinder according to claim 1, characterized in that: the clamping sleeve (3) is composed of a guide sleeve and an extension pipe which are connected up and down, the lower end of the side wall of the guide rod (4) is inserted in the guide sleeve in a sliding mode, and the extension pipe penetrates through the valve body (1) and extends into the gas cylinder.
3. An automatically opening and closing valve for a gas cylinder according to claim 2, characterized in that: and a second compression spring (10) is arranged in the guide sleeve cavity, one end of the second compression spring (10) is connected with the guide rod (4), and the other end of the second compression spring is abutted to the bottom in the guide sleeve cavity.
4. The automatic opening and closing valve for the gas cylinder according to claim 1, characterized in that: the pressure release hole is located spacing portion (7) below, the pressure release subassembly is established slip ring (11), fixed slip ring positioning seat (12) of establishing in pressure release hole port department including sliding in the pressure release hole to and locate pressure release spring (13) of connecting slip ring (11) and slip ring positioning seat (12).
5. The automatic opening and closing valve for the gas cylinder according to claim 4, characterized in that: and an exhaust hole (14) for communicating the slip ring positioning seat (12) with the pressure relief hole is formed along the axis.
6. An automatically opening and closing valve for a gas cylinder according to claim 4, characterized in that: a buffer plate (15) is arranged in the pressure relief hole, and the buffer plate (15) is located on one side, away from the sliding ring positioning seat (12), of the sliding ring (11).
7. An automatically opening and closing valve for a gas cylinder according to claim 1, characterized in that: a sealing sleeve (16) is further arranged in the cavity of the valve body (1), and the sealing sleeve (16) is located between the sealing rubber strip (2) and the spring fixing seat (8).
8. The automatic opening and closing valve for the gas cylinder according to claim 1, characterized in that: and the lower end of the outer side wall of the valve body (1) is provided with a thread (17) for connecting a gas cylinder.
9. The automatic opening and closing valve for the gas cylinder according to claim 1, characterized in that: and a contact block (18) is arranged at the axis of the upper surface of the spring fixing seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210549846.5A CN114791046A (en) | 2022-05-20 | 2022-05-20 | Automatic opening and closing valve for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210549846.5A CN114791046A (en) | 2022-05-20 | 2022-05-20 | Automatic opening and closing valve for gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114791046A true CN114791046A (en) | 2022-07-26 |
Family
ID=82463637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210549846.5A Pending CN114791046A (en) | 2022-05-20 | 2022-05-20 | Automatic opening and closing valve for gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114791046A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4898210A (en) * | 1988-01-12 | 1990-02-06 | Kabushiki Kaisha Neriki | Gas-cylinder valve |
| CN107524914A (en) * | 2017-08-25 | 2017-12-29 | 凯迈（洛阳）气源有限公司 | A kind of bottle valve and the gas cylinder using the bottle valve |
| CN207064750U (en) * | 2017-07-25 | 2018-03-02 | 浙江巨程钢瓶有限公司 | A kind of valve with safety valve on steel cylinder |
| CN211924950U (en) * | 2020-01-03 | 2020-11-13 | 浙江他山流体控制科技有限公司 | Liquefied petroleum gas cylinder valve |
| CN215635196U (en) * | 2021-07-15 | 2022-01-25 | 河北西柏坡发电有限责任公司 | Safety valve for preventing large amount of air leakage of compressed air system |
-
2022
- 2022-05-20 CN CN202210549846.5A patent/CN114791046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4898210A (en) * | 1988-01-12 | 1990-02-06 | Kabushiki Kaisha Neriki | Gas-cylinder valve |
| CN207064750U (en) * | 2017-07-25 | 2018-03-02 | 浙江巨程钢瓶有限公司 | A kind of valve with safety valve on steel cylinder |
| CN107524914A (en) * | 2017-08-25 | 2017-12-29 | 凯迈（洛阳）气源有限公司 | A kind of bottle valve and the gas cylinder using the bottle valve |
| CN211924950U (en) * | 2020-01-03 | 2020-11-13 | 浙江他山流体控制科技有限公司 | Liquefied petroleum gas cylinder valve |
| CN215635196U (en) * | 2021-07-15 | 2022-01-25 | 河北西柏坡发电有限责任公司 | Safety valve for preventing large amount of air leakage of compressed air system |
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