CN212556727U - Automatic control combined valve for diving breathing apparatus - Google Patents
Automatic control combined valve for diving breathing apparatus Download PDFInfo
- Publication number
- CN212556727U CN212556727U CN202020789763.XU CN202020789763U CN212556727U CN 212556727 U CN212556727 U CN 212556727U CN 202020789763 U CN202020789763 U CN 202020789763U CN 212556727 U CN212556727 U CN 212556727U
- Authority
- CN
- China
- Prior art keywords
- pressure air
- pressure
- low
- air inlet
- valve disc
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model provides an automatic control combination valve of a diving respirator, a high pressure spring drives a high pressure valve disc to seal a high pressure air inlet channel; when the gas pressure of the high-pressure gas chamber of the piston assembly is larger than the pretightening force of the high-pressure spring, the piston assembly moves towards the low-pressure air inlet joint, and the low-pressure valve disc closes the low-pressure air inlet passage. The breathing gas automatic switching device has the advantages that the breathing gas can be automatically switched according to the diving depth, and a diver does not need to observe the diving depth and manually operate the diving depth.
Description
Technical Field
The utility model relates to an automatic control combination valve for scuba diving.
Background
A scuba is equipment for ensuring safe breathing of a diver underwater. Some circulating scuba diving apparatus require that the diver breathes two different kinds of gas according to the diving depth. Therefore, when a diver dives to a depth where switching of gas is required, it is necessary to manually open a cylinder valve for one gas while closing a cylinder valve for the other gas. The design requires a diver to observe the diving depth in time, and depends on subjective manual operation of the diver, so that the design is not only more complicated, but also error operation is easy to occur under the diving emergency condition, and diving accidents are caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an automatic control combination valve of a diving respirator, which can automatically convert breathing gas according to diving depth without the need of a diver to observe the diving depth and manually operate; the technical problem in the prior art is solved, and the defects of the technology are overcome.
The utility model provides a scuba automatic control combination valve, include: the high-pressure air inlet connector, the shell, the piston, at least one high-pressure spring and the low-pressure air inlet connector; the housing has a piston bore; the two sides of the piston hole of the shell are provided with a high-pressure air chamber and a low-pressure air chamber; the high-pressure air chamber is provided with a high-pressure air outlet channel penetrating through the shell, and the low-pressure air chamber is provided with a low-pressure air outlet channel penetrating through the shell; the piston assembly comprises a piston rod, a high-pressure valve disc and a low-pressure valve disc; the high-pressure valve disc and the low-pressure valve disc are respectively arranged at two ends of the piston rod; the piston rod is arranged in the piston hole, the piston rod and the piston hole are connected in a sealing mode, and the piston rod can move in the piston hole; the two sides of the piston hole of the shell are provided with a high-pressure air chamber and a low-pressure air chamber; the high-pressure air chamber is provided with a high-pressure air outlet channel penetrating through the shell, and the low-pressure air chamber is provided with a low-pressure air outlet channel penetrating through the shell; the high-pressure valve disc is positioned in the high-pressure air chamber, and the low-pressure valve disc is positioned in the low-pressure air chamber; the high-pressure air inlet joint is provided with a high-pressure air inlet channel and is hermetically connected with a high-pressure air chamber of the shell; the low-pressure air inlet joint is provided with a low-pressure air inlet channel and is hermetically connected with a low-pressure air chamber of the shell; the high-pressure spring drives the high-pressure valve disc to close the high-pressure air inlet passage; when the gas pressure of the high-pressure gas chamber of the piston assembly is larger than the pretightening force of the high-pressure spring, the piston assembly moves towards the low-pressure air inlet joint, and the low-pressure valve disc closes the low-pressure air inlet passage.
The utility model provides a scuba automatic control combination valve still has such characteristic: the piston assembly also has a sealing disk; the excircle of the sealing disk is connected with the inner wall of the high-pressure air chamber in a sealing way.
The utility model provides a scuba automatic control combination valve still has such characteristic: a high pressure spring is disposed between the sealing disk and the housing to drive the piston assembly to move toward the high pressure chamber, and the high pressure valve disk closes the high pressure inlet passage.
The utility model provides a scuba automatic control combination valve still has such characteristic: a high pressure spring is disposed between the low pressure valve disc and the low pressure inlet fitting to drive the piston assembly to move toward the high pressure chamber, and the high pressure valve disc closes the high pressure inlet passage.
The utility model provides a scuba automatic control combination valve still has such characteristic: one side of the high-pressure air inlet channel, which is close to the high-pressure air chamber, is provided with a conical hole; the end part of the high-pressure valve disc is in a circular truncated cone shape, and the circular truncated cone shape is matched with the conical hole; the cone-shaped embedding taper hole seals the high pressure air inlet channel.
The utility model provides a scuba automatic control combination valve still has such characteristic: one side of the low-pressure air inlet channel close to the low-pressure air chamber is provided with a conical hole; the end part of the low-pressure valve disc is in a circular truncated cone shape, and the circular truncated cone shape is matched with the conical hole; the cone-shaped embedding taper hole seals the low pressure air inlet channel.
The utility model provides a scuba automatic control combination valve still has such characteristic: a sealing groove is arranged on the excircle of the circular truncated cone; an O-shaped sealing ring is arranged in the sealing groove.
The utility model provides a scuba automatic control combination valve still has such characteristic: the sealing connection adopts an O-shaped sealing ring for sealing.
The utility model provides a scuba automatic control combination valve still has such characteristic: the high-pressure air inlet joint is connected with the shell by threads; the low-pressure air inlet joint is connected with the shell by threads.
The utility model provides a scuba automatic control combination valve still has such characteristic: the high-pressure air outlet channel and the low-pressure air outlet channel are provided with threads and can be connected with a breathing bag.
Drawings
Fig. 1 is a schematic view of the low-pressure air inlet state of an automatic control combination valve of a scuba.
Fig. 2 is a schematic diagram of the high-pressure air intake state of the automatic control combination valve of the scuba.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the low-pressure air inlet state of an automatic control combination valve of a scuba.
Fig. 2 is a schematic diagram of the high-pressure air intake state of the automatic control combination valve of the scuba.
As shown in fig. 1 and 2, the automatic control combination valve for a scuba includes: the automatic control combination valve of the diving respirator comprises: the high-pressure air inlet joint comprises a high-pressure air inlet joint 1, a shell 2, a piston assembly 3, two high- pressure springs 4 and 6 and a low-pressure air inlet joint 7.
The housing 2 has a piston bore 205. The piston bore 205 of the housing 2 has a high pressure chamber 203 on the left and a low pressure chamber 204 on the right. The high-pressure chamber 203 has a high-pressure gas outlet passage 201 penetrating the housing 2, and the low-pressure chamber 204 has a low-pressure gas outlet passage 202 penetrating the housing 2. The high-pressure air outlet channel 201 and the low-pressure air outlet channel 202 are provided with threads, and can be connected with a breathing bag to supply air to the breathing bag.
The piston assembly 3 includes: piston rod 301, high pressure valve disc 302 and low pressure valve disc 303. In this embodiment, high pressure valve disc 302 is at the left end of piston rod 301, i.e. high pressure valve disc 302 is within high pressure chamber 203. The low pressure valve disc 303 at the right end and the piston assembly 3 are of a split structure. The right end of the piston rod 301 passes through the piston hole 205 and is fixed with the low-pressure valve disc 303 in a tight fit mode; i.e. low pressure valve disc 303 is within low pressure plenum 204. The piston rod 301 is provided with an O-ring on its circumference so that the piston rod 301 and the piston hole 205 are hermetically sealed, and the piston rod 301 is movable in the piston hole 205.
In this embodiment, the piston assembly 3 also has a sealing disc 304. The sealing disc 304 is on the circumference of the piston rod 301 and is adjacent to the high pressure valve disc 302. The outer circle of the sealing disc 304 is hermetically connected with the inner wall of the high-pressure air chamber 203 by an O-shaped sealing ring.
The high-pressure air inlet joint 1 is provided with a high-pressure air inlet channel 101, and the high-pressure air inlet joint 1 is hermetically connected with a high-pressure air chamber 203 of the shell 2; namely, the left end of the shell 22 is connected with the high-pressure air inlet joint 11 through threads; the joint is sealed by an O-shaped sealing ring.
The low-pressure air inlet joint 7 is provided with a low-pressure air inlet passage 701, and the low-pressure air inlet joint 7 is hermetically connected with the low-pressure air chamber 204 of the shell 2; namely, the right end of the shell 2 is connected with the low-pressure air inlet joint 7 through threads; the joint is sealed by an O-shaped sealing ring.
In this embodiment, the automatic control combination valve of the scuba diving apparatus adopts two high-pressure springs, namely a first high-pressure spring 4 and a second high-pressure spring 6. The first high pressure spring 4 is fitted over the piston rod 301 and between the sealing plate 304 and the side wall of the piston bore 205 of the housing 2, drives the piston assembly 3 towards the high pressure gas chamber 203.
A second high pressure spring 6 is provided between the low pressure valve disc 303 and the low pressure inlet connector 7 to drive the piston assembly 3 towards the high pressure gas chamber 203.
In this embodiment, one side of the high-pressure air inlet channel 101 close to the high-pressure air chamber 203 is a tapered hole; the end of the high pressure valve disc 302 is in a circular truncated cone shape, and the circular truncated cone shape is matched with the tapered hole; the truncated cone shape is inserted into the tapered hole to close the high pressure air inlet passage 101. A sealing groove is arranged on the excircle of the circular truncated cone; an O-shaped sealing ring is arranged in the sealing groove; and the sealing between the high-pressure valve disc 302 and the high-pressure air inlet channel 101 is ensured when the two are jointed.
Similarly, the low-pressure air inlet passage 701 is a tapered hole on the side close to the low-pressure air chamber 204; the end of the low pressure valve disc 303 is in a circular truncated cone shape, and the circular truncated cone shape is matched with the conical hole; the truncated cone shape fits into the tapered hole, closing the low pressure inlet passage 701. A sealing groove is arranged on the excircle of the circular truncated cone; an O-shaped sealing ring is arranged in the sealing groove; the low pressure valve disc 303 and the low pressure intake passage 701 are sealed when they are fitted.
The materials of the high-pressure air inlet joint 1, the shell 2 and the low-pressure air inlet joint 7 are preferably HPb59-1 lead brass and are plated with nickel; the material of the piston 3 and the valve disc 5 is preferably 1Cr18Ni9Ti stainless steel; the first 44 and second 66 high pressure springs are preferably 4Cr13 stainless steel, and may alternatively be beryllium copper.
The working principle of the automatic control combination valve of the scuba is as follows:
if a certain scuba is provided, low-pressure gas needs to be breathed shallowly at a set shallow depth (0-10 m depth) and high-pressure gas needs to be breathed deeply at a set deep depth (below 10 m depth).
As shown in fig. 1, at shallow water depths: the high-pressure air chamber 203 of the first high-pressure spring 4 and the second high-pressure spring 6 drives the piston assembly 3 to the left, namely, the high-pressure valve disc 302 is attached to and sealed with the inner wall of the high-pressure air inlet passage 101 of the high-pressure air inlet joint 1, and at the moment, high-pressure air inlet is in a closed state. The low pressure valve disk 303 is remote from the port of the low pressure intake passage 701 of the low pressure intake joint 7. The low pressure plenum 204 is in an open state.
At this time, the low-pressure gas passes through the low-pressure gas inlet passage 701, enters the low-pressure gas chamber 204, and further enters the breathing bag of the scuba diving apparatus from the low-pressure gas outlet passage 202, and the diver breathes the low-pressure gas.
When a diver dives, the ambient pressure gradually increases, the gas pressure in the breathing bag of the diving respirator is basically consistent with the ambient pressure and also increases along with the increase of the diving depth, and at the moment, the gas pressure in the high-pressure gas chamber 203 also increases along with the increase of the gas pressure due to the fact that the high-pressure gas outlet channel 201 is communicated with the breathing bag.
When the underwater vehicle dives to deep water depth and the gas pressure in the high-pressure gas chamber 203 is larger than the sum of the pretightening forces of the first high-pressure spring 4 and the second high-pressure spring 6, as shown in fig. 2, the gas pressure pushes the piston assembly 3 to move rightwards, the first high-pressure spring 4 is compressed, the high-pressure valve disc 302 leaves the high-pressure gas inlet passage 101 of the high-pressure gas inlet joint 1, and high-pressure gas enters the high-pressure gas chamber 203 from the high-pressure gas inlet passage 101 and then enters a breathing bag through the high-pressure gas. At this time, the low pressure valve disc 303 moves rightwards, the second high pressure spring 6 compresses, the low pressure valve disc 5 is forced to be attached to and sealed with the inner wall of the low pressure air inlet passage 701 of the low pressure air inlet joint 7, the low pressure air inlet passage 701 is closed, low pressure air does not enter a breathing bag any more, and a diver only breathes high pressure air.
On the contrary, when the diver floats upwards after completing the underwater task, the environmental pressure is gradually reduced at the moment, when the diver floats to the shallow water depth, namely the environmental pressure (gas pressure in the breathing bag) is reduced to the shallow water depth pressure, the pressure in the high-pressure gas chamber 203 is reduced, the spring force of the first high-pressure spring 44 pushes the piston assembly 3 to move leftwards, the high-pressure valve disc 302 is closed with the high-pressure gas inlet channel 101 of the high-pressure gas inlet connector 1 again, so that the high-pressure gas chamber 203 is locked, and the high-pressure gas does not enter the breathing; at the same time when the piston assembly 3 moves leftwards, the spring force of the second high-pressure spring 6 pushes the low-pressure valve disc 303 to move leftwards, so that the low-pressure valve disc 303 is far away from the low-pressure air inlet passage 701, the low-pressure air inlet passage 701 is opened, low-pressure air enters the breathing bag, and a diver only breathes the low-pressure air, as shown in fig. 1.
Of course, the pretightening force of the first high-pressure spring and the pretightening force of the second high-pressure spring are set according to the set deepwater depth.
The scope of this patent is not to be limited to the particular embodiments disclosed as a single example for illustrating various aspects of the patent, and functionally equivalent methods and components are within the scope of this patent. Indeed, various modifications of the disclosure in addition to those described herein will become apparent to those skilled in the art from the foregoing description and accompanying drawings. Modifications are also within the scope of the appended claims. Each of the above-mentioned references is incorporated herein by reference in its entirety.
Claims (10)
1. The utility model provides a scuba automatic control combination valve which characterized in that: the high-pressure air inlet joint comprises a high-pressure air inlet joint, a shell, a piston assembly, at least one high-pressure spring and a low-pressure air inlet joint;
wherein the housing has a piston bore;
a high pressure air chamber and a low pressure air chamber are arranged on two sides of the piston hole of the shell; the high-pressure air chamber is provided with a high-pressure air outlet channel penetrating through the shell, and the low-pressure air chamber is provided with a low-pressure air outlet channel penetrating through the shell;
the piston assembly comprises a piston rod, a high-pressure valve disc and a low-pressure valve disc; the high-pressure valve disc and the low-pressure valve disc are respectively arranged at two ends of the piston rod;
the piston rod is arranged in the piston hole, the piston rod and the piston hole are connected in a sealing mode, and the piston rod can move in the piston hole;
a high pressure air chamber and a low pressure air chamber are arranged on two sides of the piston hole of the shell; the high-pressure air chamber is provided with a high-pressure air outlet channel penetrating through the shell, and the low-pressure air chamber is provided with a low-pressure air outlet channel penetrating through the shell;
the high-pressure valve disc is positioned in the high-pressure air chamber, and the low-pressure valve disc is positioned in the low-pressure air chamber;
the high-pressure air inlet joint is provided with a high-pressure air inlet channel and is in sealing connection with the high-pressure air chamber of the shell;
the low-pressure air inlet joint is provided with a low-pressure air inlet channel and is in sealing connection with the low-pressure air chamber of the shell;
the high-pressure spring drives the high-pressure valve disc to close the high-pressure air inlet passage;
when the gas pressure of the high-pressure gas chamber of the piston assembly is larger than the pretightening force of the high-pressure spring, the piston assembly moves towards the low-pressure air inlet joint, and the low-pressure valve disc closes the low-pressure air inlet passage.
2. The scuba diving automatic control combination valve of claim 1, wherein:
wherein the piston assembly further has a sealing disk;
and the excircle of the sealing disc is in sealing connection with the inner wall of the high-pressure air chamber.
3. The scuba diving automatic control combination valve of claim 2, wherein:
and one high-pressure spring is arranged between the sealing disc and the shell and drives the piston assembly to move towards the high-pressure air chamber, and the high-pressure valve disc closes the high-pressure air inlet channel.
4. The scuba diving automatic control combination valve of claim 1, wherein:
and one high-pressure spring is arranged between the low-pressure valve disc and the low-pressure air inlet joint and drives the piston assembly to move towards a high-pressure air chamber, and the high-pressure valve disc closes the high-pressure air inlet channel.
5. The scuba diving automatic control combination valve of claim 1, wherein:
one side of the high-pressure air inlet channel, which is close to the high-pressure air chamber, is provided with a conical hole;
the end part of the high-pressure valve disc is in a circular truncated cone shape, and the circular truncated cone shape is matched with the conical hole;
the cone-shaped cone is embedded into the conical hole to seal the high-pressure air inlet channel.
6. The scuba diving automatic control combination valve of claim 1, wherein:
one side of the low-pressure air inlet channel, which is close to the low-pressure air chamber, is provided with a conical hole;
the end part of the low-pressure valve disc is in a circular truncated cone shape, and the circular truncated cone shape is matched with the conical hole;
the truncated cone shape is embedded into the tapered hole to seal the low-pressure air inlet channel.
7. A scuba automatically controlling combination valve according to claim 5 or 6, wherein:
the outer circle of the circular truncated cone is provided with a sealing groove;
an O-shaped sealing ring is arranged in the sealing groove.
8. A scuba automatically controlled combination valve according to claim 1 or 2, wherein:
wherein, the sealing connection adopts an O-shaped sealing ring for sealing.
9. The scuba diving automatic control combination valve of claim 1, wherein:
the high-pressure air inlet joint is connected with the shell through threads;
the low-pressure air inlet joint is connected with the shell through threads.
10. The scuba diving automatic control combination valve of claim 1, wherein:
the high-pressure air outlet channel and the low-pressure air outlet channel are provided with threads and can be connected with a breathing bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789763.XU CN212556727U (en) | 2020-05-13 | 2020-05-13 | Automatic control combined valve for diving breathing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789763.XU CN212556727U (en) | 2020-05-13 | 2020-05-13 | Automatic control combined valve for diving breathing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212556727U true CN212556727U (en) | 2021-02-19 |
Family
ID=74623545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020789763.XU Expired - Fee Related CN212556727U (en) | 2020-05-13 | 2020-05-13 | Automatic control combined valve for diving breathing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212556727U (en) |
-
2020
- 2020-05-13 CN CN202020789763.XU patent/CN212556727U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3933338A (en) | Balanced stem fail-safe valve system | |
| AU674223B2 (en) | Undersea hydraulic coupling with bleed valve | |
| CN106314734A (en) | Deep sea self-induction emergency load rejection mechanism | |
| JPH1063344A (en) | Pressure regulator | |
| CN102620017A (en) | High-pressure electromagnetic pneumatic-control decompression valve | |
| CN212556727U (en) | Automatic control combined valve for diving breathing apparatus | |
| AU4373401A (en) | Undersea hydraulic coupling with bleed port | |
| CN111981168A (en) | Pilot operated safety valve | |
| CN106352110B (en) | A kind of push button switch spool | |
| CN202646808U (en) | High-pressure electromagnetic air control decompression valve | |
| CN107830180A (en) | Manned underwater vehicle ballast tank breather valve | |
| US20120168007A1 (en) | High pressure pneumatic or hydraulic actuated flow indicating switch/check valve combination | |
| CN110469698B (en) | Compact pressure self-compensating full-sea-depth stop valve | |
| CN211501821U (en) | Safety valve core opening device driven by air source | |
| CN209638491U (en) | A kind of through type electric detonation air-breather | |
| CN210859926U (en) | Check valve and engine assembly | |
| US4199006A (en) | Pneumatic valve | |
| US3638675A (en) | Pneumatic clamp | |
| JPH10185057A (en) | Automatic separation type piping coupling | |
| CN215258151U (en) | Valve body assembly and deluge alarm valve | |
| CN220523321U (en) | High-tightness normally-open electromagnetic valve | |
| CN216692274U (en) | Pressure reducer for reducing linkage low-pressure release gas | |
| CN213392927U (en) | Electromagnetic valve | |
| CN110878841A (en) | Simple gas sealing valve | |
| CN210318743U (en) | Manual emergency closing valve component of industrial gas control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 |