CN211950811U - Current-limiting air inlet valve and pressure-limiting air charging tank - Google Patents
Current-limiting air inlet valve and pressure-limiting air charging tank Download PDFInfo
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- CN211950811U CN211950811U CN201922486483.1U CN201922486483U CN211950811U CN 211950811 U CN211950811 U CN 211950811U CN 201922486483 U CN201922486483 U CN 201922486483U CN 211950811 U CN211950811 U CN 211950811U
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Abstract
The utility model discloses a flow-limiting air inlet valve and a pressure-limiting inflation tank, which comprises a valve pipe body, wherein both ends of the valve pipe body are provided with an air inlet cavity and an inflation cavity, and the interior of the valve pipe body also comprises a flow-limiting channel transition cavity; the gas transmission block is fixedly arranged in the valve pipe body, at least one gas transmission channel penetrating through the gas transmission block is formed in the gas transmission block, and the gas inlet cavity is communicated with the gas charging cavity through the flow limiting channel, the transition cavity and the gas transmission channel in sequence; the gas transmission block is elastically provided with a flow limiting block, and the flow limiting block is matched with the inner wall conical surface of the flow limiting channel and used for closing or opening the flow limiting channel; when the pressure limiting inflation tank provided with the flow limiting inflation valve is inflated, and the air pressure of the inflation cavity is smaller than that of the air inlet cavity, the air pressure of the air inlet cavity overcomes the compression of the spring, the flow limiting block is matched with the flow limiting channel, the gap between the flow limiting block and the flow limiting channel is reduced, the inflation air inflow is reduced, and safety accidents caused by the fact that the inflation air inflow of the pressure limiting inflation tank is too large and the flow rate of inflation gas is too high are avoided.
Description
Technical Field
The utility model belongs to the technical field of the admission valve and specifically relates to a current-limiting admission valve and install pressure-limiting gas charging tank of this current-limiting admission valve.
Background
As is well known, when the gas in the gas tank is exhausted, the gas tank needs to be inflated, in the process of re-inflating the gas tank, because the pressure in the gas tank is lower relative to the inflation pressure, when the re-inflating is started, the inflation gas is conveyed into the gas tank in a well-spraying manner, and as new gas is inflated into the gas tank, the gas pressure in the gas tank is gradually equal to the inflation pressure, and the inflation gas inflow of the gas tank is gradually reduced; however, the blowout type inflation of the gas tank in the inflation stage can cause a plurality of safety hazards, and the following safety hazards can be caused: 1. the gas inlet amount and the gas inlet speed of the inflation gas are too high, so that the internal temperature of the gas is rapidly increased, the pressure in the gas expansion gas tank is increased to exceed a pressure resistance value, and the gas tank is exploded; 2. the pressure inside the gas tank increases sharply beyond the limit of the gas tank material, thereby causing permanent deformation of the gas tank and reducing the pressure resistance of the gas tank; 3. the internal pressure of the gas tank sharply increases and exceeds the highest allowable pressure of the gas tank, and the gas tank is exploded; and the TSG R0006-2014 gas cylinder safety technical inspection regulation also stipulates that the gas pressure of gas cylinder inflation cannot be higher than the gas cylinder stipulated threshold value, so that safety accidents are avoided.
The defects of the prior art are that when the gas tank is just inflated, the inflation gas inflow is limited, and the valve that the inflation gas inflow of the gas tank is too large and the flow rate of the inflation gas is too high is avoided.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a current-limiting admission valve and pressure-limiting aeration tank, when the pressure-limiting aeration tank begins to inflate, can restrict and inflate the air input, avoid the gas pitcher to inflate the air input too big, the gas velocity of flow is too fast.
In order to achieve the above purpose, the utility model adopts the following specific technical scheme: the key point of the flow-limiting air inlet valve is that the flow-limiting air inlet valve comprises a valve pipe body, wherein an air inlet cavity and an inflation cavity are arranged at two ends of the valve pipe body, and a flow-limiting channel and a transition cavity are arranged inside the valve pipe body.
The valve pipe is characterized in that an air transmission block is arranged between the transition cavity and the inflation cavity, the air transmission block is fixedly installed inside the valve pipe body, at least one air transmission channel penetrating through the air transmission block is formed in the air transmission block, and the air inlet cavity is communicated with the inflation cavity through the flow limiting channel, the transition cavity and the air transmission channel in sequence.
The gas transmission block is elastically provided with a flow limiting block, and the flow limiting block is matched with the inner wall conical surface of the flow limiting channel and used for closing or opening the flow limiting channel.
By adopting the design, in the process of inflating the gas tank, when the gas pressure of the inflation cavity is smaller than that of the gas inlet cavity, the gas pressure of the gas inlet cavity overcomes the compression of the spring, the flow limiting block is pushed to be separated from the inner wall of the flow limiting channel, the flow limiting channel has a gap, and the gas in the gas inlet cavity flows into the transition cavity through the gap; when the air pressure of the inflation cavity is larger than or equal to the air pressure of the air inlet cavity, the air pressure of the inflation cavity overcomes the extension of the spring, the flow limiting block is pushed to be attached to the inner wall of the flow limiting channel, the flow limiting channel is closed, the air tank is inflated, and the air tank keeps the tightness; the flow limiting block is matched with the flow limiting channel, so that the air charging amount of the air tank is reduced, and the phenomenon that the air charging amount of the air tank is too large and the flow rate of the charging gas is too high is avoided; after the gas tank is inflated, the flow limiting block and the flow limiting channel can be matched and sealed to block the flow limiting channel, so that the gas tank is sealed to prevent gas leakage; wherein, the stiffness coefficient of the spring can be adjusted according to the inflation requirement of the gas tank, and the stroke of the flow limiting block connected with the spring is controlled; the flow limiting block is matched with the inner wall of the flow limiting channel through a conical surface, so that the flow limiting block is attached to the flow limiting channel more tightly.
Further, the flow limiting block is a circular truncated cone, and the inner wall of the flow limiting channel is matched with the inclined surface of the outer wall of the flow limiting block.
Still further, the lower bottom surface of the flow limiting block is connected with the gas transmission block through a spring.
Further, when the air pressure of the inflation cavity is greater than or equal to the air pressure of the air inlet cavity, the spring pushes the flow limiting block to be attached to the inner wall of the flow limiting channel.
When the air pressure of the inflation cavity is smaller than that of the air inlet cavity, the air pressure of the air inlet cavity pushes the flow limiting block to be separated from the inner wall of the flow limiting channel.
By adopting the scheme, in the embodiment 1, the blocking block is set to be a circular truncated cone, and when the flow limiting channel is matched with the flow limiting block, the side surface of the flow limiting block is used as a guide surface, so that the inner wall of the flow limiting channel is more tightly attached to the outer wall of the blocking block; and the scheme has simple structure and low processing difficulty.
Further, the flow limiting block includes a sealing circular truncated cone and a flow limiting circular truncated cone, the sealing circular truncated cone is the same as and connected to the lower bottom surface of the flow limiting circular truncated cone, and the sealing circular truncated cone and the flow limiting circular truncated cone are integrally formed.
The flow limiting channel comprises a sealing section and a flow limiting section, one end of an air inlet cavity of the valve pipe body is provided with at least two threaded holes for reinforcing the sealing section and the flow limiting section to be in sealing connection, and screws are arranged in the threaded holes.
The sealing section is communicated with the air inlet cavity, the flow limiting section is communicated with the transition cavity, the inner wall of the sealing section is matched with the inclined plane of the outer wall of the sealing circular truncated cone, and the inner wall of the flow limiting section is matched with the inclined plane of the outer wall of the flow limiting circular truncated cone.
Further, the upper bottom surface of the flow-limiting circular truncated cone is connected with the air delivery block through a spring.
When the air pressure of the air charging cavity is greater than or equal to the air pressure of the air inlet cavity, the spring pushes the flow limiting block to enable the inclined surface of the outer wall of the flow limiting circular truncated cone to be attached to the inner wall of the flow limiting section.
When the air pressure of the inflation cavity is smaller than that of the air inlet cavity, the air pressure of the air inlet cavity pushes the flow limiting block to separate the inclined plane of the outer wall of the sealing circular truncated cone from the inner wall of the sealing section.
Still further, the outer wall of the sealing circular truncated cone of the flow limiting block is provided with at least one air inflation hole communicated with the upper bottom surface of the flow limiting circular truncated cone.
When the inclined plane of the outer wall of the flow-limiting circular truncated cone is tightly attached to the inner wall of the flow-limiting section, the air inlet cavity is communicated with the air charging cavity through the sealing section, the air charging hole, the transition cavity and the air conveying channel in sequence.
By adopting the scheme, in the embodiment 2, the blocking blocks are mutually integrated into a double round table, the flow limiting channel is also provided with the sealing section and the flow limiting section, when the air pressure of the air charging cavity is smaller than that of the air charging cavity in the air charging process of the air tank, the air pressure of the air charging cavity overcomes the compression of the spring, the flow limiting round table of the flow limiting block is pushed to be matched with the inner wall of the flow limiting section of the flow limiting channel, the gap between the flow limiting round table and the flow limiting section is reduced, the smaller the air pressure of the air charging cavity is relative to that of the air charging cavity, the smaller the gap between the flow limiting round table and the flow limiting section is, the smaller; the valve pipe body is also provided with a threaded hole and a screw for reinforcing the sealing section and the flow limiting section to be in sealing connection, so that the sealing section and the flow limiting section are firmly connected; the outer wall of the sealing circular truncated cone of the flow limiting block is provided with an inflation hole communicated with the upper bottom surface of the flow limiting circular truncated cone, and when the flow limiting circular truncated cone of the flow limiting block is tightly attached to the inner wall of the flow limiting section of the flow limiting channel, the air inlet cavity can be communicated with the transition cavity only through the inflation hole, so that the air inflow of the air tank during inflation is directly limited; the flow limiting block is arranged in the flow limiting channel, the movement range of the flow limiting block is limited, unnecessary impact is avoided, and the core part of the flow limiting air inlet valve is durable.
The pressure-limiting inflation tank comprises a tank body, and is characterized in that the flow-limiting air inlet valve is installed at an air inlet of the tank body, and an inflation cavity of the flow-limiting air inlet valve is communicated with the air inlet of the tank body.
By adopting the design, when the pressure-limiting inflation tank provided with the flow-limiting inflation valve is inflated, the inflation air inflow of the pressure-limiting inflation tank is reduced, and the phenomenon that the inflation air inflow of the pressure-limiting inflation tank is too large and the flow rate of inflation gas is too high is avoided.
The utility model has the advantages that: when the air pressure of the inflation cavity is smaller than that of the air inlet cavity in the inflation process of the air tank, the air pressure of the air inlet cavity overcomes the compression of the spring, the flow limiting block is pushed to be separated from the inner wall of the flow limiting channel, a gap exists in the flow limiting channel, and air in the air inlet cavity flows into the transition cavity through the gap; when the air pressure of the inflation cavity is larger than or equal to the air pressure of the air inlet cavity, the air pressure of the inflation cavity overcomes the extension of the spring, the flow limiting block is pushed to be attached to the inner wall of the flow limiting channel, the flow limiting channel is closed, the air tank is inflated, and the air tank keeps the tightness; the flow limiting block is matched with the flow limiting channel, so that the air charging amount of the air tank is reduced, and the phenomenon that the air charging amount of the air tank is too large and the flow rate of the charging gas is too high is avoided; after the gas tank is inflated, the flow limiting block and the flow limiting channel can be matched and sealed to block the flow limiting channel, so that the gas tank is sealed to prevent gas leakage; wherein, the stiffness coefficient of the spring can be adjusted according to the inflation requirement of the gas tank, and the stroke of the flow limiting block connected with the spring is controlled; the flow limiting block is matched with the inner wall of the flow limiting channel through a conical surface, so that the flow limiting block is tightly attached to the flow limiting channel; the flow-limiting air inlet valve in the embodiment 1 has simple structure and low processing difficulty; in the flow-limiting air inlet valve in embodiment 2, the flow-limiting block is provided with the inflation hole, so that when the outer wall of the flow-limiting circular truncated cone of the flow-limiting block is tightly attached to the inner wall of the flow-limiting section of the flow-limiting channel, the air inlet cavity can be communicated with the transition cavity only through the inflation hole, and the air inflow of the air tank during inflation is directly limited; when the pressure-limiting inflation tank provided with the flow-limiting inflation valve is inflated, the inflation air inflow of the pressure-limiting inflation tank is reduced, and the phenomenon that the inflation air inflow of the pressure-limiting inflation tank is too large and the flow rate of inflation gas is too high is avoided.
Drawings
FIG. 1 is a view showing the structure of a flow-limiting intake valve in the inflation phase of the pressure-limiting inflator in accordance with embodiment 1;
FIG. 2 is a view showing the structure of the pressure limiting inflator pump of embodiment 1;
FIG. 3 is a structural view of the whole of the pressure limiting inflator in embodiment 1;
FIG. 4 is a structural view of the flow-limiting intake valve in the inflation phase of the pressure-limiting canister in accordance with embodiment 2;
FIG. 5 is a structural view of the pressure limiting inflator tank starting to inflate the flow limiting intake valve of embodiment 2;
FIG. 6 is a structural view of the pressure limiting canister end of inflation flow limiting intake valve of embodiment 2;
FIG. 7 is a structural view of the whole of the pressure limiting inflator in embodiment 2.
Detailed Description
The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.
As can be seen from fig. 3 and 7, the flow-limiting air inlet valve comprises a valve tube body 1, an air inlet cavity 3 and an inflation cavity 4 are arranged at two ends of the valve tube body 1, and a flow-limiting channel 5 and a transition cavity 6 are further arranged inside the valve tube body 1.
An air conveying block 7 is arranged between the transition cavity 6 and the inflation cavity 4, the air conveying block 7 is fixedly installed inside the valve pipe body 1, twelve air conveying channels 71 penetrating through the air conveying block 7 are formed in the air conveying block 7, and the air inlet cavity 3 is communicated with the inflation cavity 4 through the flow limiting channel 5, the transition cavity 6 and the air conveying channels 71 in sequence.
The air delivery block 7 is elastically provided with a flow limiting block 8, and the flow limiting block 8 is matched with the conical surface of the inner wall of the flow limiting channel 5 and used for closing or opening the flow limiting channel 5.
The inflation cavity 4 is connected with the air tank 2 through an air path.
In example 1:
as can be seen from fig. 1, the flow limiting block 8 is a circular truncated cone, and the inner wall of the flow limiting channel 5 is matched with the inclined surface of the outer wall of the flow limiting block 8.
As can also be seen from fig. 2, the lower bottom surface of the restriction block 8 is connected to the gas delivery block 7 via a spring 9.
As can also be seen from fig. 1-3, when the air pressure of the inflation cavity 4 is greater than or equal to the air pressure of the air inlet cavity 3, the spring 9 pushes the flow restriction block 8 to be attached to the inner wall of the flow restriction channel 5.
When the air pressure of the air charging cavity 4 is smaller than the air pressure of the air inlet cavity 3, the air pressure of the air inlet cavity 3 pushes the flow limiting block 8 to be separated from the inner wall of the flow limiting channel 5.
As can be seen from fig. 4, the flow restricting block 8 includes a sealing circular truncated cone 81 and a flow restricting circular truncated cone 82, the sealing circular truncated cone 81 is identical to and connected to the lower bottom surface of the flow restricting circular truncated cone 82, and the sealing circular truncated cone 81 and the flow restricting circular truncated cone 82 are integrally formed.
In example 2:
the flow limiting channel 5 comprises a sealing section 51 and a flow limiting section 52, in this embodiment, one end of the air inlet cavity 3 of the valve tube body 1 is provided with four threaded holes for reinforcing the sealing section 51 and the flow limiting section 52 to be in sealing connection, and screws are installed in the threaded holes.
The sealing section 51 is communicated with the air inlet cavity 3, the flow limiting section 52 is communicated with the transition cavity 6, the inner wall of the sealing section 51 is matched with the inclined surface of the outer wall of the sealing circular truncated cone 81, and the inner wall of the flow limiting section 52 is matched with the inclined surface of the outer wall of the flow limiting circular truncated cone 82.
As can also be seen from fig. 5, the upper bottom surface of the flow-limiting truncated cone 82 is connected to the air delivery block 7 via a spring 9.
As can be seen from fig. 4-7, when the air pressure of the air charging cavity 4 is greater than or equal to the air pressure of the air inlet cavity 3, the spring 9 pushes the flow limiting block 8, so that the inclined surface of the outer wall of the flow limiting circular truncated cone 82 is attached to the inner wall of the flow limiting section 52.
When the air pressure of the air charging cavity 4 is smaller than the air pressure of the air inlet cavity 3, the air pressure of the air inlet cavity 3 pushes the flow limiting block 8, so that the inclined surface of the outer wall of the sealing circular truncated cone 81 is separated from the inner wall of the sealing section 51.
As can be seen from fig. 4-7, in this embodiment, at least one air-filling hole 83 communicating with the upper bottom surface of the flow-limiting truncated cone 82 is formed in the outer wall of the sealing truncated cone 81 of the flow-limiting block 8.
When the inclined surface of the outer wall of the flow limiting circular truncated cone 82 is tightly attached to the inner wall of the flow limiting section 52, the air inlet cavity 3 is communicated with the air charging cavity 4 through the sealing section 52 of the flow limiting channel 5, the air charging hole 83, the transition cavity 6 and the air transmission channel 71 in sequence.
The equivalent alternative technical scheme can also be that the air charging hole 8 is arranged on the inner wall of the region, which is not jointed with the flow limiting circular truncated cone 82, in the flow limiting section 52, and the air charging hole 8 penetrates through the flow limiting section 52 and is communicated with the transition cavity 6.
As can be seen from fig. 3 and 7, the pressure-limiting inflation tank comprises a tank body, wherein the air inlet of the tank body is provided with the flow-limiting air inlet valve in the embodiment 1 or the embodiment 2, and the inflation cavity 4 of the flow-limiting air inlet valve is communicated with the air inlet of the tank body.
The utility model discloses a theory of operation:
working principle of example 1:
the pressure limiting inflation tank starts to inflate, the air pressure of the air inlet cavity is larger than that of the inflation cavity, the air pressure of the air inlet cavity overcomes the compression of the spring to push the outer wall of the flow limiting block to be separated from the inner wall of the flow limiting channel, a gap is formed between the flow limiting block and the flow limiting channel, and the air pressure of the air inlet cavity inflates the pressure limiting inflation tank through the gap.
After the pressure-limiting inflation tank is inflated, the air pressure of the air inlet cavity is smaller than that of the inflation cavity, the air pressure of the inflation cavity overcomes the stretching of the spring to push the outer wall of the flow limiting block to be attached to the inner wall of the flow limiting channel, and the flow limiting channel is blocked, so that the pressure-limiting inflation tank is in a sealed state.
When the pressure-limiting inflation tank starts to inflate to the pressure-limiting inflation tank finishes inflating, the air pressure of the inflation cavity gradually rises from the air pressure smaller than the air inlet cavity to the air pressure larger than the air inlet cavity, and the outer wall of the flow limiting block gradually approaches to the inner wall of the flow limiting channel.
Working principle of example 2:
the pressure limiting inflation tank starts to be inflated, the air pressure of the air inlet cavity is larger than that of the inflation cavity, the air pressure of the air inlet cavity overcomes the compression of the spring to push the flow limiting block, the inclined surface of the outer wall of the flow limiting circular truncated cone of the flow limiting block is tightly attached to the inner wall of the flow limiting section of the flow limiting channel, and the air in the air inlet cavity can only inflate the pressure limiting inflation tank through the inflation hole in the flow limiting block.
After the pressure-limiting inflation tank is inflated, the air pressure of the air inlet cavity is smaller than that of the inflation cavity, the air pressure of the inflation cavity overcomes the stretching of the spring to push the flow limiting block, so that the outer wall inclined plane of the sealing circular table of the flow limiting block is tightly attached to the inner wall of the sealing section of the flow limiting channel, the flow limiting channel is plugged, and the pressure-limiting inflation tank is in a sealing state.
When the pressure-limiting inflation tank starts to inflate to the pressure-limiting inflation tank finishes inflating, the air pressure of the inflation cavity gradually rises from the air pressure smaller than the air inlet cavity to the air pressure larger than the air pressure of the air inlet cavity, so that the outer wall inclined surface of the flow limiting circular table of the flow limiting block is gradually separated from the inner wall of the flow limiting section of the flow limiting channel, the outer wall inclined surface of the sealing circular table of the flow limiting block is gradually attached to the inner wall of the sealing section of the flow limiting channel, a gap is formed between the flow limiting block and the flow limiting channel, and the air pressure of the air inlet cavity is enabled to inflate the.
Claims (9)
1. The flow-limiting air inlet valve is characterized by comprising a valve pipe body (1), wherein an air inlet cavity (3) and an inflation cavity (4) are arranged at two ends of the valve pipe body (1), and a flow-limiting channel (5) and a transition cavity (6) are further arranged inside the valve pipe body (1);
an air conveying block (7) is arranged between the transition cavity (6) and the inflation cavity (4), the air conveying block (7) is fixedly installed inside the valve pipe body (1), at least one air conveying channel (71) penetrating through the air conveying block (7) is formed in the air conveying block (7), and the air inlet cavity (3) is communicated with the inflation cavity (4) sequentially through the flow limiting channel (5), the transition cavity (6) and the air conveying channel (71);
the gas transmission block (7) is elastically provided with a flow limiting block (8), and the flow limiting block (8) is matched with the inner wall conical surface of the flow limiting channel (5) and used for closing or opening the flow limiting channel (5).
2. A flow-limiting inlet valve according to claim 1, characterized in that the flow-limiting block (8) is a circular truncated cone, and the inner wall of the flow-limiting channel (5) and the outer wall of the flow-limiting block (8) are mutually inclined.
3. A flow-restricting inlet valve as claimed in claim 2, characterised in that the lower bottom surface of the flow restricting block (8) is connected to the air delivery block (7) via a spring (9).
4. A flow-limiting inlet valve according to claim 3, characterized in that when the air pressure of the inflating cavity (4) is greater than or equal to the air pressure of the inlet cavity (3), the spring (9) pushes the flow-limiting block (8) to abut against the inner wall of the flow-limiting channel (5);
when the air pressure of the inflation cavity (4) is smaller than the air pressure of the air inlet cavity (3), the air pressure of the air inlet cavity (3) pushes the flow limiting block (8) to be separated from the inner wall of the flow limiting channel (5).
5. The flow-limiting intake valve according to claim 1, wherein the flow-limiting block (8) comprises a sealing circular truncated cone (81) and a flow-limiting circular truncated cone (82), the sealing circular truncated cone (81) is identical to and connected with the lower bottom surface of the flow-limiting circular truncated cone (82), and the sealing circular truncated cone (81) and the flow-limiting circular truncated cone (82) are integrally formed;
the flow limiting channel (5) comprises a sealing section (51) and a flow limiting section (52), the sealing section (51) is communicated with the air inlet cavity (3), the flow limiting section (52) is communicated with the transition cavity (6), the inner wall of the sealing section (51) is matched with the inclined plane of the outer wall of the sealing circular truncated cone (81), and the inner wall of the flow limiting section (52) is matched with the inclined plane of the outer wall of the flow limiting circular truncated cone (82).
6. The flow-limiting intake valve of claim 5, wherein the upper bottom surface of the flow-limiting boss (82) is connected to the gas delivery block (7) via a spring (9).
7. The flow-limiting air inlet valve as claimed in claim 6, characterized in that when the air pressure of the inflation cavity (4) is greater than or equal to the air pressure of the air inlet cavity (3), the spring (9) pushes the flow-limiting block (8) to make the outer wall slope of the flow-limiting circular truncated cone (82) fit with the inner wall of the flow-limiting section (52);
when the air pressure of the air charging cavity (4) is smaller than the air pressure of the air inlet cavity (3), the air pressure of the air inlet cavity (3) pushes the flow limiting block (8), so that the inclined plane of the outer wall of the sealing circular truncated cone (81) is separated from the inner wall of the sealing section (51).
8. The flow-limiting air inlet valve as claimed in claim 7, characterized in that the outer wall of the sealing circular truncated cone (81) of the flow-limiting block (8) is provided with at least one air-filling hole (83) communicated with the upper bottom surface of the flow-limiting circular truncated cone (82);
when the inclined plane of the outer wall of the flow limiting circular truncated cone (82) is tightly attached to the inner wall of the flow limiting section (52), the air inlet cavity (3) is communicated with the air charging cavity (4) through the sealing section (51), the air charging hole (83), the transition cavity (6) and the air transmission channel (71) in sequence.
9. A pressure-limiting inflation tank comprises a tank body, and is characterized in that a flow-limiting air inlet valve as in any one of claims 1-8 is installed at an air inlet of the tank body, and an inflation cavity (4) of the flow-limiting air inlet valve is communicated with the air inlet of the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486483.1U CN211950811U (en) | 2019-12-31 | 2019-12-31 | Current-limiting air inlet valve and pressure-limiting air charging tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922486483.1U CN211950811U (en) | 2019-12-31 | 2019-12-31 | Current-limiting air inlet valve and pressure-limiting air charging tank |
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| Publication Number | Publication Date |
|---|---|
| CN211950811U true CN211950811U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922486483.1U Active CN211950811U (en) | 2019-12-31 | 2019-12-31 | Current-limiting air inlet valve and pressure-limiting air charging tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932149A (en) * | 2021-09-02 | 2022-01-14 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure-limiting oxygen and oxygen-enriched gas switching valve |
-
2019
- 2019-12-31 CN CN201922486483.1U patent/CN211950811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932149A (en) * | 2021-09-02 | 2022-01-14 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure-limiting oxygen and oxygen-enriched gas switching valve |
| CN113932149B (en) * | 2021-09-02 | 2023-05-05 | 中国航空工业集团公司沈阳飞机设计研究所 | Pressure-limiting oxygen and oxygen-enriched gas switching valve |
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