CN213685420U - Novel gas cylinder pressure reducer - Google Patents
Novel gas cylinder pressure reducer Download PDFInfo
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- CN213685420U CN213685420U CN202022660843.8U CN202022660843U CN213685420U CN 213685420 U CN213685420 U CN 213685420U CN 202022660843 U CN202022660843 U CN 202022660843U CN 213685420 U CN213685420 U CN 213685420U
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Abstract
A novel gas cylinder pressure reducer comprises a normally closed one-way valve, a backfire preventer, wherein the normally closed one-way valve is movably connected to a gas inlet of a gas cylinder pressure reducer meter body, the backfire preventer is fixedly connected to a gas outlet of the gas cylinder pressure reducer meter body, a separation plug is coaxially arranged in the normally closed one-way valve through threads, an airflow through hole which is communicated with two sides of the plug body is formed in the separation plug in a surrounding mode around a central shaft, a regulating cylinder coaxially penetrates through the center of the separation plug, a plug is arranged at one end, pointing to the gas inlet, of the regulating cylinder, a pressure spring is sleeved on the regulating cylinder between the plug and the separation plug, the normally closed one-way valve limits and stabilizes airflow, can regulate gas residual pressure in a gas cylinder according to needs, and avoids gas waste caused by excessive pressure or external gas suck back into the gas cylinder; meanwhile, the decompression meter is connected with a fixed backfire preventer, an additional backfire preventer is not needed, and the application range is wide.
Description
Technical Field
The utility model relates to a high-pressure gas equipment field of being correlated with specifically is a novel gas cylinder pressure reducer.
Background
The gas cylinder pressure reducer is used for reducing high-pressure gas stored in a high-pressure gas cylinder into low-pressure gas which can be normally used, and keeping the pressure and flow of the output low-pressure gas stable, and is widely applied to the transportation and the use of various high-pressure gases; the conventional pressure reducing meter has the function of stabilizing the gas flow, has a simple gas filtering function and cannot limit the residual pressure of gas in a gas cylinder; meanwhile, for the decompression meter of the combustible gas, the possible backfire condition is mostly restrained in a mode of being connected with an additional connection anti-backfire device, and the conventional decompression meter which is not additionally provided with the anti-backfire device cannot be used for the decompression operation of the combustible gas, so that the application range is limited.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a novel gas cylinder pressure reducer has the normal close formula check valve of restriction effect to the air current through the setting, has guaranteed to have the equivalent residual pressure inside the gas cylinder after using to accomplish, introduces non-detachable anti-backfire device simultaneously on the decompression table body, makes the decompression table can be used for any kind of gaseous decompression, and its concrete scheme is as follows:
the technical proposal provided by the utility model is that a novel gas cylinder pressure reducer is provided, which comprises a normally closed one-way valve and a backfire preventer; the normally closed one-way valve is movably connected to an air inlet of a gauge body of the gas cylinder pressure reducer, and the backfire preventer is fixedly connected to an air outlet of the gauge body of the gas cylinder pressure reducer;
preferably, the normally closed one-way valve comprises a separating plug, an adjusting column and a pressure spring, the separating plug is coaxially arranged in the normally closed one-way valve through threads, and the separating plug is provided with an air flow through hole communicated with two sides of a plug body around a central shaft; the cylinder of the adjusting column coaxially penetrates through the center of the separating plug; and a plug is arranged at one end of the adjusting column pointing to the gas inlet, and the pressure spring is sleeved on an adjusting column body between the plug and the separating plug.
Preferably, the diameter of the air inlet part of the normally closed one-way valve is smaller than the maximum value of the diameter of the plug.
Preferably, the length of the pressure spring is smaller than the natural length of the pressure spring when the plug contacts with the air inlet part of the normally closed one-way valve.
The technical effect of the technical scheme is as follows:
the normally closed one-way valve at the air inlet part of the pressure reducing meter plays a role in effectively limiting and stabilizing air flow through the combined action of the adjusting column and the separating plug, and can adjust the residual pressure of the gas in the gas cylinder according to the requirement, thereby avoiding the phenomenon that the gas is wasted due to overhigh residual pressure or the subsequent gas purity is influenced because external gas is sucked back into the gas cylinder due to overlow residual pressure; meanwhile, the decompression meter is connected with a fixed backfire preventer, so that the decompression meter can be applied to the pressure stability of combustible gas, an additional backfire preventer is not required, and the application range is wide.
Drawings
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of a normally closed check valve;
in the figure, 1 is a normally closed one-way valve, 2 is a backfire preventer, 11 is a separating plug, 12 is an airflow through hole, 13 is an adjusting column, 14 is a plug and 15 is a pressure spring.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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 work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
Example (b):
referring to fig. 1, in the embodiment, in the novel gas cylinder pressure reducer, a normally closed check valve 1 is connected to an air inlet of a gauge body of the gas cylinder pressure reducer through a thread, the normally closed check valve 1 is connected to an air inlet of the pressure reducer through a thread and used for controlling gas to flow into the pressure reducer, and the normally closed check valve 1 is connected through a thread to be convenient for residual pressure adjustment, disassembly and replacement; tempering prevention ware 2 fixed connection is in gas cylinder pressure reducer table body gas outlet department, and tempering prevention ware 2 is fixed and is being gone out at the decompression table gas outlet for prevent flame when gas pipeline detonation along reducing pressure income gas cylinder and lead to the explosion, its structure is fixed connection, makes on the decompression table can directly be applied to combustible gas's decompression, need not additionally to add anti-backfire device, has the efficiency that prevents other gas cylinder pressure reducers and do not install anti-backfire device and cause the explosion.
Referring to fig. 2, the normally closed check valve 1 comprises a separating plug 11, an adjusting column 13 and a pressure spring 15, wherein the separating plug 11 is coaxially arranged in the normally closed check valve 1 through threads, and an air flow through hole 12 communicated with two sides of a plug body is arranged on the separating plug 11 around a central shaft; the cylinder of the adjusting column 13 coaxially passes through the center of the separating plug 11; an end cap 14 is arranged at one end of the adjusting column 13 pointing to the gas inlet, a pressure spring 15 is sleeved on the adjusting column 13 between the end cap 14 and the separating plug 11, the separating plug 11 is connected with the thread of the normally closed one-way valve 1 to adjust the position of the separating plug 11 and further adjust the extrusion degree of the pressure spring 15, the adjusting column 13 can move axially in the separating plug 11, and the pressure spring 15 supports the end cap 14 on the adjusting column 13 to seal the gas inlet under the natural state, when the gas is output from the gas inlet, the end cap 14 is pressed to compress the pressure spring 15, the adjusting column 13 moves backwards to open the gas flow channel, the gas enters a subsequent decompression meter through the gas flow through holes 12 distributed on the separating plug 11 in a ring shape, when the gas pressure is gradually reduced along with the use of the gas, the pressure in the gas inlet is not enough to push the end cap 14, the adjusting column 13 enables the end cap 14 to be sealed again by the gas inlet under, at the moment, the pressure in the gas cylinder is the residual pressure, and the residual pressure in the gas cylinder can be controlled to be reserved as required by adjusting the restoring force of the elasticity control pressure spring 15 of the thread of the separation plug 11.
The diameter of the air inlet part of the normally closed one-way valve 1 is smaller than the maximum value of the diameter of the plug 14, the length of the pressure spring 15 is smaller than the natural length of the pressure spring when the plug 14 is in contact with the air inlet part of the normally closed one-way valve 1, so that the pressure spring 15 can keep recovering the natural length, continuous thrust is generated on the plug 14, the diameter of the partial structure in the plug 14 is larger than the diameter of the air inlet part of the normally closed one-way valve 1, airflow is difficult to flow backwards, and therefore a one-way gas limiting effect is generated.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are all covered by the 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 novel gas cylinder pressure reducer is characterized by comprising a normally closed one-way valve (1) and a backfire preventer (2);
the normally closed check valve (1) is movably connected to an air inlet of a gauge body of the gas cylinder pressure reducer, and the backfire arrester (2) is fixedly connected to an air outlet of the gauge body of the gas cylinder pressure reducer.
2. A novel gas cylinder pressure reducer as defined in claim 1 wherein: the normally closed one-way valve (1) comprises a separating plug (11), an adjusting column (13) and a pressure spring (15), the separating plug (11) is coaxially arranged in the normally closed one-way valve (1) through threads, and an air flow through hole (12) communicated with two sides of a plug body is arranged on the separating plug (11) in a surrounding mode around a central shaft; the cylinder body of the adjusting column (13) coaxially penetrates through the center of the separating plug (11); a plug (14) is arranged at one end of the adjusting column (13) pointing to the gas inlet, and the pressure spring (15) is sleeved on the column body of the adjusting column (13) between the plug (14) and the separating plug (11).
3. A novel gas cylinder pressure reducer as defined in claim 2 wherein: the diameter of the air inlet part of the normally closed check valve (1) is smaller than the maximum value of the diameter of the plug (14).
4. A novel gas cylinder pressure reducer as defined in claim 2 wherein: and when the plug (14) is contacted with the air inlet part of the normally closed one-way valve (1), the length of the pressure spring (15) is smaller than the natural length of the pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022660843.8U CN213685420U (en) | 2020-11-17 | 2020-11-17 | Novel gas cylinder pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022660843.8U CN213685420U (en) | 2020-11-17 | 2020-11-17 | Novel gas cylinder pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213685420U true CN213685420U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022660843.8U Active CN213685420U (en) | 2020-11-17 | 2020-11-17 | Novel gas cylinder pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213685420U (en) |
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2020
- 2020-11-17 CN CN202022660843.8U patent/CN213685420U/en active Active
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