CN211584746U - Oxygen supply flow indicator - Google Patents
Oxygen supply flow indicator Download PDFInfo
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- CN211584746U CN211584746U CN201922464671.4U CN201922464671U CN211584746U CN 211584746 U CN211584746 U CN 211584746U CN 201922464671 U CN201922464671 U CN 201922464671U CN 211584746 U CN211584746 U CN 211584746U
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Abstract
The application relates to an oxygen suppliment current indicator, includes: the support body is internally provided with a piston guide channel, an oxygen inlet channel and an oxygen outlet channel; one end of the oxygen inlet channel is communicated with the piston guide channel, and the other end of the oxygen inlet channel extends to the outer surface of the support body and is communicated with an oxygen source; one end of the oxygen outlet channel is communicated with the piston guide channel, and the other end of the oxygen outlet channel extends to the outer surface of the support body; the outer surface of the support body is sunken to form a pressure display cavity, and the pressure display cavity is communicated with the piston guide channel; the pressure sensing diaphragm is arranged in the pressure display cavity; the pressure spring is arranged in the piston guide channel, and one end of the pressure spring is connected with the inner wall of the piston guide channel; the piston is arranged in the piston guide channel and is connected with the other end of the pressure spring; oxygen entering the piston guide channel from the oxygen inlet channel can overcome the elastic force of the pressure spring to push the piston to move along the piston guide channel, so that the oxygen outlet channel and the pressure display cavity are communicated with the oxygen inlet channel through the piston guide channel.
Description
Technical Field
The application belongs to the oxygen suppliment and shows a class ware structural design field, concretely relates to oxygen suppliment shows a class ware.
Background
The oxygen supply flow indicator is arranged on an oxygen supply pipeline of the oxygen supply mask and used for displaying the on-off of oxygen in the oxygen supply pipeline so as to be observed by related personnel, and accordingly, corresponding operation is carried out, so that the timeliness and effectiveness of oxygen supply to the oxygen supply mask are guaranteed, and the stable supply of the oxygen is guaranteed.
At present, the oxygen supply flow indicator can only display the on-off of oxygen in the oxygen supply pipeline, and the oxygen supply amount can not be visually displayed, so that detailed information about oxygen supply flow can not be provided for related personnel, and the timeliness and effectiveness of the operation of the related personnel are greatly limited.
Disclosure of Invention
The purpose of this application is to provide an oxygen supply flow indicator to overcome the shortcoming of prior art.
The technical scheme of the application is as follows:
an oxygen supply flow indicator comprising:
the support body is internally provided with a piston guide channel, an oxygen inlet channel and an oxygen outlet channel; one end of the oxygen inlet channel is communicated with the piston guide channel, and the other end of the oxygen inlet channel extends to the outer surface of the support body and is communicated with an oxygen source; one end of the oxygen outlet channel is communicated with the piston guide channel, and the other end of the oxygen outlet channel extends to the outer surface of the support body; the outer surface of the support body is sunken to form a pressure display cavity, and the pressure display cavity is communicated with the piston guide channel;
the pressure sensing diaphragm is arranged in the pressure display cavity;
the pressure spring is arranged in the piston guide channel, and one end of the pressure spring is connected with the inner wall of the piston guide channel;
the piston is arranged in the piston guide channel and is connected with the other end of the pressure spring; oxygen entering the piston guide channel from the oxygen inlet channel can overcome the elastic force of the pressure spring to push the piston to move along the piston guide channel, so that the oxygen outlet channel and the pressure display cavity are communicated with the oxygen inlet channel through the piston guide channel.
Furthermore, an annular piston sealing groove is formed between the piston and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the piston sealing ring is arranged in the annular piston sealing groove.
Further, one end of the piston guide channel extends to the outer surface of the support body;
the oxygen supply flow indicator further comprises:
one end of the guide rod extends into the piston guide channel and is connected with the piston.
Further, the pressure spring is sleeved on the guide rod.
Furthermore, an annular guide rod sealing groove is formed between the outer wall of the guide rod and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the guide rod sealing ring is arranged in the annular guide rod sealing groove.
Further, still include:
the plug is arranged at one end of the piston guide channel extending to the outer surface of the support body so as to plug the end; the plug is provided with a guide rod through hole; the guide rod penetrates through the guide rod through hole.
Furthermore, an annular plug sealing groove is formed between the outer wall of the plug and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the plug sealing ring is arranged in the annular plug sealing groove.
Further, the oxygen outlet channel is communicated with the piston guide channel through an oxygen outlet hole;
the oxygen supply flow indicator further comprises:
the one-way oxygen supply valve is arranged at the position where the oxygen outlet hole is communicated with the oxygen outlet channel, so that oxygen can only flow from the piston guide channel to the oxygen outlet channel in a one-way mode.
Further, one-way oxygen suppliment valve includes:
the cushion block is connected with the inner wall of the oxygen outlet channel and is provided with a plurality of valve through holes; one end of each valve through hole is communicated with the oxygen outlet hole;
the screw is screwed to the cushion block;
the air cushion is sleeved on the screw;
the valve spring is sleeved on the screw, one end of the valve spring is connected with the head of the screw, and the other end of the valve spring is connected with the air cushion so as to tightly press the air cushion on the cushion block and plug the other end of each valve through hole; oxygen entering the valve through holes from the oxygen outlet holes can overcome the elastic force of the valve springs to push the air cushions to move towards the direction far away from the cushion blocks, so that the valve through holes are communicated with the oxygen outlet channels.
Further, still include:
and the edge of the pressure display cover is connected with the support body and covers the pressure display cavity.
Furthermore, the edge of the pressure sensing diaphragm is connected with the inner wall of the pressure display cavity, and a pressure sensing cavity is enclosed between the edge of the pressure sensing diaphragm and the inner wall of the pressure display cavity; the pressure sensing cavity is communicated with the piston guide channel through a pressure sensing hole.
Drawings
Fig. 1 is a front view of an oxygen flow indicator provided in an embodiment of the present application;
FIG. 2 is a side view of an oxygen flow indicator provided by an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along plane A-A of FIG. 2;
wherein:
1-a support; 2-a pressure sensing diaphragm; 3-a pressure spring; 4-a piston; 5-piston sealing ring; 6-a guide rod; 7-guide rod sealing ring; 8-plug; 9-plug sealing ring; 10-cushion block; 11-a screw; 12-an air cushion; 13-a shutter spring; 14-pressure display hood.
Detailed Description
The present application is described in further detail below with reference to fig. 1-2.
An oxygen supply flow indicator comprising:
the support body 1 is internally provided with a piston guide channel, an oxygen inlet channel and an oxygen outlet channel; wherein, one end of the oxygen inlet channel is communicated with the piston guide channel, and the other end extends to the outer surface of the support body 1 and is used for being communicated with an oxygen source; one end of the oxygen outlet channel is communicated with the piston guide channel, and the other end of the oxygen outlet channel extends to the outer surface of the support body 1; the outer surface of the support body 1 is sunken to form a pressure display cavity, and the pressure display cavity is communicated with the piston guide channel;
a pressure sensing diaphragm 2 disposed in the pressure display chamber;
the pressure spring 3 is arranged in the piston guide channel, and one end of the pressure spring is connected with the inner wall of the piston guide channel;
the piston 4 is arranged in the piston guide channel and is connected with the other end of the pressure spring 3; oxygen entering the piston guide channel from the oxygen inlet channel can overcome the elastic force of the pressure spring 3 to push the piston 4 to move along the piston guide channel, and finally the oxygen outlet channel and the pressure display cavity can be communicated with the oxygen inlet channel through the piston guide channel.
For the oxygen supply flow indicator disclosed in the above embodiment, it can be understood that, it is disposed on the oxygen supply pipeline, oxygen from the oxygen source enters the piston guide channel through the oxygen inlet channel, when a certain pressure is reached, the piston 4 is pushed to move in the piston guide channel by overcoming the elastic force of the pressure spring 3, the piston moves to a certain position along the piston guide channel to make the oxygen outlet channel, the pressure display cavity is communicated with the oxygen inlet channel through the piston guide channel, the communication has synchronism, oxygen flows into the oxygen outlet channel and the pressure display cavity synchronously through the piston guide channel, oxygen entering the oxygen outlet channel then flows to the oxygen supply mask direction along the oxygen supply pipeline, and oxygen entering the pressure display cavity makes the pressure sensing diaphragm 3 disposed in the pressure display cavity deform correspondingly, so as to visually display the size of oxygen flow.
With respect to the oxygen supply flow indicator disclosed in the above embodiment, it can be understood that the oxygen from the oxygen source is reduced or shut off, so that the pressure in the piston guide channel is reduced, when the pressure in the piston guide channel is reduced to a certain degree, the pressure spring 3 will push the piston 4 to move in the piston channel, so that the position of the piston 4 in the piston channel is restored, the oxygen outlet channel, the pressure display chamber are no longer communicated with the oxygen inlet channel, and the oxygen supply is interrupted, that is, the oxygen from the oxygen source can flow to the oxygen supply mask through the oxygen supply flow indicator only when the oxygen reaches a certain pressure.
Preferably, an annular piston sealing groove is formed between the piston 4 and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the piston sealing ring 5 is arranged in the annular piston sealing groove.
Preferably, one end of the piston guide channel extends to the outer surface of the support body 1;
the oxygen supply flow indicator further comprises:
one end of the guide rod 6 extends into the piston guide channel to be connected with the piston 4, so that the piston 3 can stably move along the piston guide channel, and jamming is avoided.
Preferably, the pressure spring 3 is fitted over the guide rod 6.
Preferably, an annular guide rod sealing groove is formed between the outer wall of the guide rod 6 and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and a guide rod sealing ring 7 is arranged in the annular guide rod sealing groove.
Preferably, the method further comprises the following steps:
a plug 8 arranged at one end of the piston guide channel extending to the outer surface of the support body 1 to plug the end; the plug 8 is provided with a guide rod through hole; the guide rod 6 penetrates through the guide rod through hole; the guide rod 6 can slide relative to the plug under the drive of the piston 4.
Preferably, an annular plug sealing groove is formed between the outer wall of the plug 8 and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the plug sealing ring 9 is arranged in the annular plug sealing groove.
Preferentially, the oxygen outlet is communicated with the piston guide channel through an oxygen outlet hole;
the oxygen supply flow indicator further comprises:
the one-way oxygen supply valve is arranged at the position where the oxygen outlet hole is communicated with the oxygen outlet channel so as to limit that oxygen can only flow from the piston guide channel to the oxygen outlet channel in one way.
Preferably, the one-way oxygen supply shutter comprises:
the cushion block 10 is connected with the inner wall of the oxygen outlet channel and is provided with a plurality of valve through holes; one end of each valve through hole is communicated with the oxygen outlet hole;
a screw 11 screwed to the pad 10;
the air cushion 12 is sleeved on the screw 11;
the valve spring 13 is sleeved on the screw 11, one end of the valve spring is connected with the head of the screw 11, and the other end of the valve spring is connected with the air cushion 12, so that the air cushion 12 is tightly pressed on the cushion block 10, and the other end of each valve through hole is blocked; oxygen entering the valve through holes from the oxygen outlet holes can overcome the elastic force of the valve springs 13 to push the air cushions 12 to move towards the direction far away from the cushion blocks 10, so that the valve through holes are communicated with the oxygen outlet channels, and the oxygen in the piston rod guide channels can flow into the oxygen outlet channels through the oxygen outlet holes and the valve through holes; when the oxygen from the oxygen source is reduced or closed, the pressure in the piston guide channel is reduced, and when the pressure in the piston guide channel is reduced to a certain degree, the valve spring 13 can push the air cushion 12 to move towards the direction close to the cushion block 10, and gradually recover to the state of being tightly pressed on the cushion block 10, so that each valve through hole is blocked, the flow of the oxygen from the piston rod guide channel to the oxygen outlet channel is blocked, and the backflow of the oxygen from the oxygen outlet channel to the piston rod guide channel can be prevented.
Preferably, the method further comprises the following steps:
and a pressure display cover 14, the edge of which is connected with the supporting body 1 and covers the pressure display cavity.
Preferentially, the edge of the pressure sensing diaphragm 2 is connected with the inner wall of the pressure display cavity, and a pressure sensing cavity is enclosed between the edge of the pressure sensing diaphragm and the inner wall of the pressure display cavity; the pressure sensing cavity is communicated with the piston guide channel through a pressure sensing hole.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.
Claims (10)
1. An oxygen supply flow indicator, comprising:
the support body (1) is internally provided with a piston guide channel, an oxygen inlet channel and an oxygen outlet channel; one end of the oxygen inlet channel is communicated with the piston guide channel, and the other end of the oxygen inlet channel extends to the outer surface of the support body (1) and is communicated with an oxygen source; one end of the oxygen outlet channel is communicated with the piston guide channel, and the other end of the oxygen outlet channel extends to the outer surface of the support body (1); the outer surface of the support body (1) is sunken to form a pressure display cavity, and the pressure display cavity is communicated with the piston guide channel;
a pressure sensing diaphragm (2) disposed in the pressure display chamber;
the pressure spring (3) is arranged in the piston guide channel, and one end of the pressure spring is connected with the inner wall of the piston guide channel;
the piston (4) is arranged in the piston guide channel and is connected with the other end of the pressure spring (3); oxygen entering the piston guide channel from the oxygen inlet channel can overcome the elastic force of the pressure spring (3) to push the piston (4) to move along the piston guide channel, so that the oxygen outlet channel and the pressure display cavity are communicated with the oxygen inlet channel through the piston guide channel.
2. The oxygen flow indicator of claim 1,
an annular piston sealing groove is formed between the piston (4) and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the piston sealing ring (5) is arranged in the annular piston sealing groove.
3. The oxygen flow indicator of claim 1,
one end of the piston guide channel extends to the outer surface of the support body (1);
the oxygen supply flow indicator further comprises:
and one end of the guide rod (6) extends into the piston guide channel and is connected with the piston (4).
4. The oxygen flow indicator of claim 3,
the pressure spring (3) is sleeved on the guide rod (6).
5. The oxygen flow indicator of claim 3,
an annular guide rod sealing groove is formed between the outer wall of the guide rod (6) and the inner wall of the piston guide channel;
the oxygen supply flow indicator further comprises:
and the guide rod sealing ring (7) is arranged in the annular guide rod sealing groove.
6. The oxygen flow indicator of claim 3,
further comprising:
a plug (8) arranged at one end of the piston guide channel extending to the outer surface of the support body (1) so as to plug the end; the plug (8) is provided with a guide rod through hole; the guide rod (6) penetrates through the guide rod through hole.
7. The oxygen flow indicator of claim 1,
the oxygen outlet channel is communicated with the piston guide channel through an oxygen outlet hole;
the oxygen supply flow indicator further comprises:
the one-way oxygen supply valve is arranged at the position where the oxygen outlet hole is communicated with the oxygen outlet channel.
8. The oxygen flow indicator of claim 7,
one-way oxygen suppliment valve includes:
the cushion block (10) is connected with the inner wall of the oxygen outlet channel and is provided with a plurality of valve through holes; one end of each valve through hole is communicated with the oxygen outlet hole;
a screw (11) screwed to the pad (10);
the air cushion (12) is sleeved on the screw (11);
the valve spring (13) is sleeved on the screw (11), one end of the valve spring is connected with the head of the screw (11), and the other end of the valve spring is connected with the air cushion (12) so as to tightly press the air cushion (12) on the cushion block (10) and plug the other end of each valve through hole; oxygen entering the valve through holes from the oxygen outlet holes can overcome the elastic force of the valve spring (13) to push the air cushion (12) to move towards the direction far away from the cushion block (10), so that the valve through holes are communicated with the oxygen outlet channel.
9. The oxygen flow indicator of claim 1,
further comprising:
and the edge of the pressure display cover (14) is connected with the support body (1) and covers the pressure display cavity.
10. The oxygen flow indicator of claim 1,
the edge of the pressure sensing diaphragm (2) is connected with the inner wall of the pressure display cavity, and a pressure sensing cavity is enclosed between the edge of the pressure sensing diaphragm and the inner wall of the pressure display cavity; the pressure sensing cavity is communicated with the piston guide channel through a pressure sensing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464671.4U CN211584746U (en) | 2019-12-31 | 2019-12-31 | Oxygen supply flow indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464671.4U CN211584746U (en) | 2019-12-31 | 2019-12-31 | Oxygen supply flow indicator |
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| Publication Number | Publication Date |
|---|---|
| CN211584746U true CN211584746U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922464671.4U Active CN211584746U (en) | 2019-12-31 | 2019-12-31 | Oxygen supply flow indicator |
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| Country | Link |
|---|---|
| CN (1) | CN211584746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521585A (en) * | 2021-06-01 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Current indicator |
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2019
- 2019-12-31 CN CN201922464671.4U patent/CN211584746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521585A (en) * | 2021-06-01 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Current indicator |
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