CN114234041A - Gas cylinder lock - Google Patents
Gas cylinder lock Download PDFInfo
- Publication number
- CN114234041A CN114234041A CN202111520212.9A CN202111520212A CN114234041A CN 114234041 A CN114234041 A CN 114234041A CN 202111520212 A CN202111520212 A CN 202111520212A CN 114234041 A CN114234041 A CN 114234041A
- Authority
- CN
- China
- Prior art keywords
- mounting seat
- locking
- cap
- cylinder lock
- baffle
- Prior art date
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0308—Protective caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0332—Safety valves or pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/011—Oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/018—Acetylene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/028—Avoiding unauthorised transfer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A cylinder lock, characterized by: the gas tank locking device comprises a mounting seat, wherein at least one locking piece is formed on the side wall of the mounting seat and used for fixedly locking with a gas tank; the upper end of the mounting seat is provided with an opening, the upper end of the mounting seat is provided with an openable cap, and the cap and the mounting seat are correspondingly provided with locking structures for locking when the cap is closed; the novel protective cover further comprises a baffle, the baffle is in linkage fit with the cover cap, the baffle is provided with a first position of the retaining piece of the retaining column when the cover cap is closed, and a second position of the retaining piece exposed when the cover cap is opened. Scheme more than adopting not only can play conventional safety protection effect, can lock simultaneously to avoid being opened or dismantle by other people at will, prevent to be stolen the problem of usefulness, misuse by other people.
Description
Technical Field
The invention relates to the technical field of gas tank protection, in particular to a gas tank lock.
Background
Such as oxygen tanks, acetylene tanks and other gas storage tanks, a gas valve structure for controlling gas inlet and outlet is usually arranged at the top of the tank body, and a detachable safety cap is usually arranged outside the gas valve. The safety helmet can protect the air valve, avoids it to expose outside, and at gas holder transport, storage in-process, both protected the air valve and avoided it to receive the collision to cause the damage, prevent dust or grease class material invasion simultaneously again to guarantee gas holder safe handling, avoid appearing incident such as gas leakage, explosion.
The conventional closed safety cap is only connected with the tank body of the gas storage tank through threads, the safety cap is detached when the gas storage tank is used, and the safety cap is reinstalled when the gas storage tank is not used.
However, the safety helmet only plays a role of safety protection, cannot be locked, can be disassembled and assembled by anyone, cannot prevent random operation of other people, and also brings certain potential safety hazards once misoperation or random stealing of other people occurs.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides a gas cylinder lock.
The technical scheme adopted by the invention is as follows: the gas cylinder lock comprises a mounting seat, wherein at least one locking piece is formed on the side wall of the mounting seat and is used for fixedly locking with a gas cylinder; the upper end of the mounting seat is provided with an opening, the upper end of the mounting seat is provided with an openable cap, and the cap and the mounting seat are correspondingly provided with locking structures for locking when the cap is closed; still include a baffle, baffle and block linkage cooperation, the baffle has the first position of bumping post retaining member when the block is closed to and expose the second position of retaining member when the block is opened.
Two connecting side plates are correspondingly formed on the outer side wall of the mounting seat, the locking piece is arranged between the two connecting side plates, and a limiting groove is correspondingly formed between the two connecting side plates; a linkage piece is hinged between the two connecting side plates, and a first linkage arm and a second linkage arm respectively extend out of the linkage piece towards two sides; the baffle is arranged in the limiting groove and can move up and down in the limiting groove, and the upper end of the baffle is in hinged fit with the first linkage arm; the cover cap is hinged to the connecting side plate, and a first driving boss corresponding to the first linkage arm and a second driving boss corresponding to the second linkage arm are formed on the cover cap.
The cap is correspondingly provided with two connecting arms, the linkage piece is arranged between the two connecting arms, and the linkage piece and the two connecting arms are coaxially hinged on a connecting side plate of the mounting seat.
The locking structure comprises a first locking plate arranged on the mounting seat and a second locking plate arranged on the cover cap, wherein a first locking hole is formed in the first locking plate, and a second locking hole is correspondingly formed in the second locking plate; when the cover cap is closed, the first lock hole is aligned with the second lock hole.
The second locking plate is provided with two, and when the block was closed, first locking plate setting was between two second locking plates.
The side wall of the mounting seat is provided with a threaded hole, and the locking piece is a bolt.
The mounting seat is of an annular structure, and an inner ring of the mounting seat is provided with an internal thread.
The side wall of the mounting seat is provided with a slot for the air supply pipe to pass through.
The mounting seat and the cover cap are made of plastics or steel or cast aluminum.
The invention has the beneficial effects that: scheme more than adopting not only can play conventional safety protection effect, can lock simultaneously to avoid being opened or dismantle by other people at will, prevent to be stolen the problem of usefulness, misuse by other people.
Drawings
Fig. 1 is a schematic structural view 1 of a gas cylinder lock cap closing according to an embodiment of the present invention.
Fig. 2 is a schematic structural view 2 of the cylinder lock cap closing according to the embodiment of the present invention.
Fig. 3 is a schematic structural view 1 of the cylinder lock cap when the cylinder lock cap is opened according to the embodiment of the invention.
Fig. 4 is a schematic structural view 2 of the cylinder lock cap opening according to the embodiment of the invention.
Fig. 5 is a schematic structural diagram of a mounting base according to an embodiment of the invention.
Fig. 6 is a schematic structural diagram of a cap according to an embodiment of the invention.
FIG. 7 is a schematic structural diagram of a linkage according to an embodiment of the invention.
Detailed Description
The embodiments of the invention will be further described with reference to the accompanying drawings in which:
as shown in the figures, a gas cylinder lock comprises a mounting base 1, a cap 2 and a baffle 3.
The mounting seat 1 is of a hollow annular structure, the mounting seat 1 is used for being connected with a gas tank, and during use, the mounting seat 1 can be sleeved outside a gas valve at the top of the gas tank, so that a safety protection effect on the gas valve of the gas tank is formed. The mounting seat 1 can be mounted on the gas tank in a thread matching mode like a protective cap of a conventional gas tank, and can be applied to most conventional gas tanks, and the application range is wide.
The side wall of the mounting seat 1 is also provided with a locking member which can be a bolt, a threaded hole 11 is formed in the side wall of the mounting seat, so that the mounting seat 1 can be reliably fixed and locked on the gas tank through screwing the bolt into the threaded hole 11 and propping against a connecting sleeve of the gas tank, the mounting seat can not be easily detached, and the mounting seat 1 can be detached from the gas tank only after the locking member is screwed out. Certainly, the locking piece can also be a pin shaft or other structures, so that the circumferential or axial limiting of the mounting seat 1 is realized, and the purpose of locking the mounting seat 1 is realized.
The cap 2 is correspondingly arranged at the upper end of the mounting seat 1, and the cap 2 is arranged in an openable manner relative to the upper end opening of the mounting seat 1, that is, the cap 2 has a closing position for blocking the upper end opening of the mounting seat 1 and an opening position for exposing the upper end opening of the mounting seat 1. The cap 2 and the mounting seat 1 are correspondingly provided with a locking structure for locking when the cap 2 is closed, so that the cap 2 is prevented from being opened by others at will.
The locking structure comprises a first locking plate 14 arranged on the mounting base 1 and a second locking plate 24 arranged on the cap 2, wherein a first locking hole 15 is formed in the first locking plate 14, a second locking hole 25 is correspondingly formed in the second locking plate 24, when the cap 2 is closed, the first locking hole 15 is aligned with the second locking hole 25, and at the moment, a padlock can be hung on the first locking hole 15 and the second locking hole 25, so that the locking purpose is realized.
Furthermore, the number of the second locking plates 24 is two, and when the cap 2 is closed, the first locking plate 14 is arranged between the two second locking plates 24, so that the locking structure is more stable.
Baffle 3 and block 2 linkage cooperation, baffle 3 has the primary importance of the bumping post retaining member when block 2 closes to and expose the secondary importance of retaining member when block 2 opens, consequently, close the back of locking when block 2, except that block 2 can't be opened, the position of retaining member is sheltered from by baffle 3 simultaneously, make mount pad 1 pull down from the gas pitcher easily, only under the state that block 2 opened, expose the retaining member, just can dismantle the retaining member, and pull down mount pad 1 from the gas pitcher.
In the embodiment, as shown in the figure, two connecting side plates 12 are correspondingly formed on the outer side wall of the mounting seat 1, the locking member is arranged at a position between the two connecting side plates 12, and a limiting groove 13 is correspondingly formed between the two connecting side plates 12; a linkage piece 4 is hinged between the two connecting side plates 12, and a first linkage arm 41 and a second linkage arm 42 respectively extend from the linkage piece 4 to two sides; the baffle 3 is arranged in the limiting groove 13 and can move up and down in the limiting groove 13, and the upper end of the baffle 3 is in hinged fit with the first linkage arm 41; the cap 2 is hinged to the connecting side plate 12, and a first driving boss 21 corresponding to the first linkage arm 41 and a second driving boss 22 corresponding to the second linkage arm 42 are formed on the cap 2.
Further, the cap 2 is correspondingly formed with two connecting arms 23, the linkage piece 4 is arranged between the two connecting arms 23, the two connecting arms 23 are arranged between the two connecting side plates 12, the linkage piece 4 and the two connecting arms 23 are coaxially hinged on the connecting side plates 12 of the mounting seat, and the whole structure is more stable and reliable.
When the cap 2 is opened, the cap 2 is turned upwards, the second driving boss 22 of the cap can push the second linkage arm 42 downwards, so that the first linkage arm 41 of the linkage piece 4 tilts upwards, the first linkage arm 41 drives the baffle 3 to move upwards, so that the locking piece of the mounting seat 1 is exposed, when the cap 2 is closed, the cap 2 is turned downwards, the first driving boss 21 of the cap can push the first linkage arm 41 downwards, so that the first linkage arm 41 of the linkage piece 4 presses upwards, and the first linkage arm 41 drives the baffle 3 to move downwards, so that the locking piece of the mounting seat 1 is blocked.
Of course, except above-mentioned baffle 3, block 2, except foretell connected mode between 1 three of mount pad, can also be with adopting other connected modes, for example baffle and block body coupling, the block then sets up with the mount pad components of a whole that can function independently, when the block is opened, block and mount pad separation, baffle and mount pad separation simultaneously, expose the retaining member, when the block is closed, the block is connected with the mount pad, baffle and mount pad cooperation simultaneously, and block the retaining member, but this kind of mode is in the use, the block exists easily to be lost in use, and open and close the inconvenient connected mode of operation
In addition, the mounting seat 1 lateral wall is formed with the fluting 17 that the air supply pipe passes through, and the trachea can form through fluting 17 and be connected with the pneumatic valve of gas pitcher, and the tracheal connection can remain throughout after the pneumatic valve is connected the trachea, the practical operation of being convenient for.
The material of the mounting seat 1 and the cap 2 is usually selected from plastic or steel or cast aluminum.
When the gas cylinder lock is installed, the installation seat 1 is firstly sleeved outside the gas valve of the gas cylinder, the gas cylinder is installed in a threaded connection mode, the cap 2 is opened, the installation seat 1 is fixedly locked on the gas cylinder through the locking piece, the cap 2 is closed and locked at last, and the baffle 3 blocks the locking piece under the linkage effect of the cap 2.
At this moment, block 2 is locked and can't be opened, and the retaining member is sheltered from simultaneously, also can't pull down mount pad 1 from the gas pitcher easily, consequently, above-mentioned gas pitcher lock not only can form reliable safety protection to the pneumatic valve on the gas pitcher, avoids appearing collision damage, safety problems such as dust or the invasion of grease class material, can avoid simultaneously being opened or dismantle by other people at will, effectively prevents to be stolen by other people, the problem of misuse.
After the above-mentioned gas pitcher lock of gas pitcher installation, only through just can normal use after the unblock, when the gas pitcher used, the unblock was opened block 2 back, and operating personnel alright realize opening and close and take over the operation of pneumatic valve through 1 upper end openings of mount pad, when the gas pitcher did not use, only need close block 2 and lock can, it is also very convenient to operate.
In addition, when unblock and open block 2, retaining member is exposed in baffle 3 action, can dismantle the retaining member this moment for the gas pitcher lock can be followed and pulled down on the gas pitcher, and the dismantlement of gas pitcher lock is also very convenient, more is favorable to the reuse and the use of the maintenance and the gas pitcher lock of gas pitcher.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.
Claims (9)
1. A gas cylinder lock comprising a mount (1), characterized in that:
at least one locking piece is formed on the side wall of the mounting seat (1) and used for being fixedly locked with the gas tank;
the upper end of the mounting seat (1) is provided with an opening, the upper end of the mounting seat is provided with an openable cover cap (2), and the cover cap (2) and the mounting seat (1) are correspondingly provided with locking structures for locking when the cover cap (2) is closed;
still include a baffle (3), baffle (3) and block cap (2) linkage cooperation, baffle (3) have the first position of bumping post retaining member when block cap (2) are closed to and expose the second position of retaining member when block cap (2) are opened.
2. A cylinder lock according to claim 1, wherein: two connecting side plates (12) are correspondingly formed on the outer side wall of the mounting seat (1), the locking piece is arranged between the two connecting side plates (12), and a limiting groove (13) is correspondingly formed between the two connecting side plates (12);
a linkage piece (4) is hinged between the two connecting side plates (12), and a first linkage arm (41) and a second linkage arm (42) respectively extend out of the linkage piece (4) towards two sides;
the baffle (3) is arranged in the limiting groove (13) and can move up and down in the limiting groove (13), and the upper end of the baffle (3) is in hinged fit with the first linkage arm (41);
the cover cap (2) is hinged to the connecting side plate (12), and a first driving boss (21) corresponding to the first linkage arm (41) and a second driving boss (22) corresponding to the second linkage arm (42) are formed on the cover cap (2).
3. A cylinder lock according to claim 2, wherein: the nut cap (2) is correspondingly formed with two connecting arms (23), the linkage piece (4) is arranged between the two connecting arms (23), and the linkage piece (4) and the two connecting arms (23) are coaxially hinged on a connecting side plate of the mounting seat.
4. A cylinder lock according to claim 1, wherein: the locking structure comprises a first locking plate (14) arranged on the mounting seat (1) and a second locking plate (24) arranged on the cap (2), wherein a first locking hole (15) is formed in the first locking plate (14), and a second locking hole (25) is correspondingly formed in the second locking plate (24); when the cap (2) is closed, the first locking hole (15) is aligned with the second locking hole (25).
5. A cylinder lock according to claim 4, wherein: the number of the second locking plates (24) is two, and when the cover cap (2) is closed, the first locking plate (14) is arranged between the two second locking plates (24).
6. A cylinder lock according to claim 1, wherein: the lateral wall of the mounting seat (1) is provided with a threaded hole (11), and the locking piece is a bolt.
7. A cylinder lock according to claim 1, wherein: the mounting seat (1) is of an annular structure, and an inner ring of the mounting seat is provided with an internal thread (16).
8. A cylinder lock according to claim 1, wherein: the side wall of the mounting seat (1) is provided with a slot (17) for the air supply pipe to pass through.
9. A cylinder lock according to claim 1, wherein: the mounting seat (1) and the cover cap (2) are made of plastics or steel or cast aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520212.9A CN114234041B (en) | 2021-12-14 | 2021-12-14 | Gas cylinder lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111520212.9A CN114234041B (en) | 2021-12-14 | 2021-12-14 | Gas cylinder lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114234041A true CN114234041A (en) | 2022-03-25 |
| CN114234041B CN114234041B (en) | 2023-02-14 |
Family
ID=80755310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111520212.9A Active CN114234041B (en) | 2021-12-14 | 2021-12-14 | Gas cylinder lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114234041B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29612666U1 (en) * | 1996-07-22 | 1996-10-02 | Schmitt, Heinz Günter, 57577 Seelbach | Device for securely closing the filler neck of a gas tank |
| CN2343466Y (en) * | 1998-08-24 | 1999-10-13 | 吴寿宗 | Split safety protecting bottle cover |
| DE19926961A1 (en) * | 1999-06-14 | 2001-01-25 | Josef Haberthaler | Protective cap for the valve of a gas pressure bottle for welding has a shrouding wall held by a release lock at the bottle neck for effective valve protection with easy fitting and removal |
| TWM288354U (en) * | 2005-07-22 | 2006-03-01 | Wei-Chuen Jiang | Safety device for gas cylinder |
| CN201599560U (en) * | 2009-11-27 | 2010-10-06 | 卓文仁 | Protecting cover device of cylinder valve |
| CN206708727U (en) * | 2017-04-25 | 2017-12-05 | 南京扬子石油化工工程有限责任公司 | Novel gas bottle valve protection cap |
| CN211780157U (en) * | 2019-12-30 | 2020-10-27 | 青岛铂迈睿思生物科技有限公司 | Liquid nitrogen container with electromagnetic lock |
| TWM605728U (en) * | 2020-09-01 | 2020-12-21 | 白文 | External hanging type locking structure for valve seat switch |
-
2021
- 2021-12-14 CN CN202111520212.9A patent/CN114234041B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29612666U1 (en) * | 1996-07-22 | 1996-10-02 | Schmitt, Heinz Günter, 57577 Seelbach | Device for securely closing the filler neck of a gas tank |
| CN2343466Y (en) * | 1998-08-24 | 1999-10-13 | 吴寿宗 | Split safety protecting bottle cover |
| DE19926961A1 (en) * | 1999-06-14 | 2001-01-25 | Josef Haberthaler | Protective cap for the valve of a gas pressure bottle for welding has a shrouding wall held by a release lock at the bottle neck for effective valve protection with easy fitting and removal |
| TWM288354U (en) * | 2005-07-22 | 2006-03-01 | Wei-Chuen Jiang | Safety device for gas cylinder |
| CN201599560U (en) * | 2009-11-27 | 2010-10-06 | 卓文仁 | Protecting cover device of cylinder valve |
| CN206708727U (en) * | 2017-04-25 | 2017-12-05 | 南京扬子石油化工工程有限责任公司 | Novel gas bottle valve protection cap |
| CN211780157U (en) * | 2019-12-30 | 2020-10-27 | 青岛铂迈睿思生物科技有限公司 | Liquid nitrogen container with electromagnetic lock |
| TWM605728U (en) * | 2020-09-01 | 2020-12-21 | 白文 | External hanging type locking structure for valve seat switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114234041B (en) | 2023-02-14 |
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