CN109050832A - A kind of decompression breathing equipment and Portable diving breathing device - Google Patents
A kind of decompression breathing equipment and Portable diving breathing device Download PDFInfo
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- CN109050832A CN109050832A CN201811077562.0A CN201811077562A CN109050832A CN 109050832 A CN109050832 A CN 109050832A CN 201811077562 A CN201811077562 A CN 201811077562A CN 109050832 A CN109050832 A CN 109050832A
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- pressure reducing
- pressure
- reducing valve
- decompression
- breathing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/18—Air supply
- B63C11/22—Air supply carried by diver
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention relates to underwater breathing apparatus, specifically disclose a kind of decompression breathing equipment and Portable diving breathing device, it includes main valve body that it, which depressurizes breathing equipment, with the pressure reducing valve being arranged on the main valve body, charge valve, hypobaric chamber, spiracle and gas vent, main gas channel is provided in the main valve body, relief passage and filling channel, decompression breathing equipment provided by the invention, each air flue is integrated in main valve body, inflating gas cylinder can be realized by main valve body, the functions such as gas decompression, its structure is simply dexterous, it is at low cost, cooperate small-sized high-pressure gas cylinder that the miniaturization of aqualung can be realized, the functions such as portable, it freely moves under water under water convenient for user.
Description
[technical field]
The present invention relates to underwater breathing apparatus more particularly to a kind of decompression breathing equipments and Portable diving breathing device.
[background technique]
Existing underwater breathing apparatus is mainly back belt type rebreather, and floatation type rebreather and mermaid are imitative
Raw gill formula rebreather, the air bottle that back belt type rebreather needs user's back to compress in advance are dived beneath the water and are made
With this air bottle weight is larger, and user seems heavy under water, carries trouble；The air bottle of floatation type rebreather
It swims on the water surface, user bites breathing hose and carries out diving use, and this rebreather weight is relatively light, but equips
Restricted larger, user is difficult to freely move under water under water；The bionical gill formula rebreather of mermaid, oxygen preparation effect need
It considers, and structure is complicated, it is inconvenient to wear, and cost is very high.
[summary of the invention]
The technical problems such as the present invention is that the above-mentioned rebreather of solution is not portable, at high cost, and structure is complicated, provide following
Technical solution:
On the one hand, the present invention provides a kind of decompression breathing equipment, including main valve body, and subtracting on the main valve body is arranged in
It is logical to be provided with main gas channel, relief passage and inflation in the main valve body for pressure valve, charge valve, hypobaric chamber, spiracle and gas vent
Road, in which:
The main gas channel is connected to high-pressure gasbag；
The main gas channel is connected to the charge valve by filling channel, for inflating to the high-pressure gasbag；
The main gas channel is connected to the pressure reducing valve by relief passage, and the pressure reducing valve is used for high pressure air reducing；
The pressure reducing valve is connected to the hypobaric chamber, to input low-pressure gas to the hypobaric chamber, then passes through the breathing
Confession user breathing；
The gas vent is connected to the hypobaric chamber, to exclude the exhaust gas of exhalation.
In some embodiments, the pressure reducing valve includes adjusting component and pressure reducing valve screw nut, in which:
The pressure reducing valve screw nut is fixed at the relief passage mouth；
The adjusting component has a pressure reducing valve plug, and the adjusting component can be moved up and down to push pressure reducing valve plug to lean on
Closely/and far from the pressure reducing valve screw nut, with pressure reducing valve described in off/on.
In some embodiments, the adjusting component further includes low pressure diaphragm, active lever and the first elastic component,
The low pressure diaphragm generates deformation with the pressure oscillation of the hypobaric chamber, and one end of the active lever abuts
The low pressure diaphragm setting, the other end abut the pressure reducing valve plug,
First elastic component is arranged in the bottom of the pressure reducing valve plug, first elastic component save certain elastic force with
By the pressure reducing valve plug close to pressure reducing valve screw nut, to close pressure reducing valve,
When the hypobaric chamber is in negative pressure state, the low pressure diaphragm deformation pushes the active lever, the movable bar
Bar pushes the pressure reducing valve plug far from the pressure reducing valve screw nut, to open pressure reducing valve.
In some embodiments, the active lever includes primary lever and second lever, wherein
Described movable one end of primary lever abuts the low pressure diaphragm, and the upside of the other end is fixed,
Described second lever one end is fixed, and the other end abuts the downside of the fixed one end of the primary lever.
When the hypobaric chamber is in negative pressure state, the low pressure diaphragm deformation pushes the primary lever, the level-one thick stick
Bar is rotated around fixed position, and the downside of described fixed one end of primary lever pushes the second lever consolidating around second lever
Rotation is set in positioning, and described movable one end of second lever pushes the pressure reducing valve plug far from the pressure reducing valve screw nut, to open
Pressure reducing valve.
In some embodiments, the charge valve includes inflating valve head, charge valve plug and the second elastic component,
The filling channel runs through the inflation valve head, and the inflation valve head is detachably arranged on the main valve body, institute
The bottom that the charge valve plug is arranged in the second elastic component is stated, second elastic component saves certain elastic force to push described fill
Air valve plug closes the filling channel.
It in some embodiments, further include the safety valve that the main gas channel end is set.
It in some embodiments, further include with the main gas channel by monitoring channel attached pressure-detecting device.
In some embodiments, breathing bite is provided at the spiracle.
On the other hand, the present invention provides a kind of Portable diving breathing device, including above-described decompression breathing equipment, with
And the high-pressure gas cylinder being detachably connected with the decompression breathing equipment.
In some embodiments, the main valve body bottom is provided with connector, and the gas vent is arranged in the connector
Two sides, annular silica gel gasket is provided with outside the gas vent, the high-pressure gas cylinder passes through the connector and the main valve
Body spiral shell connects, and the fixed silica gel pad.
The beneficial effects of the present invention are, each air flue is integrated in main valve body by decompression breathing equipment provided by the invention,
Inflating gas cylinder can be realized by main valve body, the functions such as gas decompression, structure is simply dexterous, and it is at low cost, cooperate small-sized height
The miniaturization of aqualung can be realized in pressure storage cylinder, and the functions such as portable are freely moved under water under water convenient for user.
[Detailed description of the invention]
Fig. 1 is the configuration schematic diagram for the decompression breathing equipment that one embodiment of the invention provides.
Fig. 2 is the top view for the decompression breathing equipment that one embodiment of the invention provides.
Fig. 3 is the A-A cross-sectional view in Fig. 2 that one embodiment of the invention provides.
Fig. 4 is the main valve body structure schematic diagram for the decompression breathing equipment that one embodiment of the invention provides.
Fig. 5 is the structure of relief pressure valve schematic diagram for the decompression breathing equipment that one embodiment of the invention provides.
Fig. 6 is the adjusting component structure diagram for the decompression breathing equipment that one embodiment of the invention provides.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Embodiment 1
Decompression breathing equipment described in following text and attached drawing can be exhaled normally for high pressure air reducing to be become user
The gas of suction specifically can be used for underwater breathing apparatus relevant device, and Fig. 1 is decompression breathing equipment provided by the invention
Configuration schematic diagram, Fig. 2 are the top view of decompression breathing equipment provided by the invention, and Fig. 3 is the A-A cross-sectional view in Fig. 2, figure
4 be the main valve body structure schematic diagram provided by the invention for depressurizing breathing equipment, please refers to Fig. 1-Fig. 4, decompression provided by the invention
Breathing equipment, including main valve body 1, and the pressure reducing valve 11 being arranged on main valve body 1, charge valve 12, hypobaric chamber 13,24 He of spiracle
Gas vent 14 is provided with main gas channel 15, relief passage 25 and filling channel 16, main gas channel 15 and high pressure gas in main valve body 1
Capsule 2 is connected to, and the gas in high-pressure gasbag 2 is entered in other channels by main gas channel 15, is realized by other channels specific
Function.
Main gas channel 15 is connected to charge valve 12 by filling channel 16, for inflating to high-pressure gasbag 2；Main gas channel 15
It being connected to pressure reducing valve 11 by relief passage 25, pressure reducing valve 11 is used for high pressure air reducing, and pressure reducing valve 11 is connected to hypobaric chamber 13,
High pressure gas inputs low-pressure gas after the decompression of pressure reducing valve 11, to hypobaric chamber 13, and user passes through breathing mouth breathing hypobaric chamber
Gas in 13.
Gas vent 14 is connected to hypobaric chamber 13, to exclude the exhaust gas of exhalation.
As shown in Figure 5 and Figure 6, pressure reducing valve 11 includes adjusting component 111 and pressure reducing valve screw nut 112, and pressure reducing valve screw nut 112 is solid
Fixed to be arranged at 25 mouthfuls of relief passage, 25 mouthfuls of settable helicitic textures of relief passage, pressure reducing valve screw nut 112 is tightened, this field
It is to be understood by the skilled artisans that the fixation that other modes carry out pressure reducing valve screw nut 112 can also be used, such as buckle structure etc.；It adjusts
Component 111 has a pressure reducing valve plug 1112, and the center of pressure reducing valve screw nut 112 has a through-hole, pressure reducing valve plug 1112 it is outer
Diameter is greater than through-hole internal diameter, and pressure reducing valve plug 1112 and the through-hole cooperate to limit gas circulation, and adjusting component 111 can move up and down
To push close/separate pressure reducing valve screw nut 112 of pressure reducing valve plug 1112, with off/on pressure reducing valve 11.
Low pressure diaphragm 17 is provided in hypobaric chamber 13, substantially, top cover of the low pressure diaphragm 17 as hypobaric chamber 13.Generally
Ground can generate deformation with the pressure oscillation of hypobaric chamber 13, low-pressure membrane as shown in figure 4, low pressure diaphragm 17 has the function of deformation
Piece 17 is covered on the top of hypobaric chamber 13, and outer diameter is greater than the internal diameter of hypobaric chamber 13, and the upper cover 23 of main valve body 1 is arranged thereon, should
The reason of upper cover 23 can be used engraved structure, such setting is, if upper cover 23 seals, between upper cover 23 and low pressure diaphragm 17
Space will be fixed, and low pressure diaphragm 17 can be prevented to carry out deformation, and therefore, the main valve body 1 of the present embodiment is using engraved structure
On the one hand upper cover 23 can be fixed the circumferential direction of low pressure diaphragm 17, on the other hand prevent the inappropriate use of product, cause low
Pressuring film plate 17 excessively expands, the expansion limit beyond material, so that damage of product.
In more detail, as shown in fig. 6, adjusting component 111 further includes active lever 1111 and the first elastic component 1113,
Pressure reducing valve plug 1112 specifically may include sequentially connected preceding feeler lever 1112B, block up core 1112A, follow block 1112C, push rod 1112D,
Wherein, the through-hole at 112 center of pressure reducing valve screw nut can be blocked by blocking up core 1112A, and preceding feeler lever 1112B is arranged in the front end stifled core 1112A, can
It is contacted across through-hole and with active lever 1111, follow block 1112C setting is arranged in the rear end stifled core 1112A, push rod 1112D in follow block
On the downside of 1112C, the first elastic component 1113 is arranged on push rod 1112D, and pushes pressure reducing valve plug 1112 by follow block 1112C
Close to pressure reducing valve screw nut 112.
One end of active lever 1111 is arranged against low pressure diaphragm 17, before the other end abuts 1112 front end of pressure reducing valve plug
Feeler lever 1112B, the first elastic component 1113 save certain elastic force with by pressure reducing valve plug 1112 close to pressure reducing valve screw nut 112, to close
Pressure reducing valve 11 is closed, when hypobaric chamber 13 is in negative pressure state, 17 deformation of low pressure diaphragm pushes active lever 1111, active lever
1111 push pressure reducing valve plug 1112 far from pressure reducing valve screw nut 112, to open pressure reducing valve 11.
Preferably, to keep the pressure reducing valve 11 in the present embodiment sensitiveer, active lever 1111 divides for two-stage lever: level-one
Lever 1111A and second lever 1111B, wherein the movable one end primary lever 1111A abuts low pressure diaphragm 17, the other end
Upside is fixed, and second lever 1111B is fixed one end, and the other end abuts the downside of the fixed one end primary lever 1111A.When low
Ballasting 13 is in negative pressure state, and when that is to say user's air-breathing, 17 deformation of low pressure diaphragm pushes primary lever 1111A to moving down
Dynamic, primary lever 1111A is rotated around fixed position, and the downside of the fixed one end primary lever 1111A pushes second lever
1111B is rotated around the fixation position of second lever 1111B, and the movable one end second lever 1111B pushes pressure reducing valve plug 1112
Far from pressure reducing valve screw nut 112, the first elastic component 1113 compression, to open pressure reducing valve 11.
Breathing bite 20 is provided at spiracle 24, user can directly bite breathing bite 20 and breathe, alternatively,
Decompression breathing equipment provided by the invention can also connect other breathing apparatus, such as breathing mask etc. by the spiracle 24.
It is provided with silica gel pad 22 on the outside of gas vent 14, when air-breathing, which is close to gas vent 14, with the row of closing
Stomata 14 prevents water from entering hypobaric chamber 13 from gas vent 14, and when expiration, low pressure diaphragm 17 restores shape, the first elastic component 1113
Elastic force is kept, pressure reducing valve 11 is closed, and the air stopping in high-pressure gasbag 2 enters hypobaric chamber 13, the gas punching of user's exhalation
Silica gel pad 22 is opened, the exhaust gas of exhalation is discharged from gas vent 14.
Charge valve 12 includes inflation valve head 121, charge valve plug 122 and the second elastic component 123, and filling channel 16, which runs through, to be filled
Air valve head 121, inflation valve head 121 are detachably arranged on main valve body 1, and charge valve plug 122 is arranged in the second elastic component 123
Bottom, the second elastic component 123 save certain elastic force to push charge valve plug 122 to close filling channel 16.Under normal conditions, charge valve
Plug 122 is acted on by the elastic force of the second elastic component 123, and charge valve plug 122 is contacted with inflation valve head 121 and held one's breath, and prevents from depressurizing
Gas overflowing in breathing equipment；When inflation, inflator connector is connect with inflation valve head 121, when inflator works, inflator pressure
Contracting air enters inflation valve head 121, squeezes charge valve plug 122 and compresses the second elastic component 123,122 principle of charge valve plug is filled
Air valve head 121, charge valve 12 are opened, and air enters in high-pressure gasbag 2.
Further, decompression breathing equipment provided by the invention further includes the safety valve that main 15 end of gas channel is arranged in
18, specifically, safety valve 18 includes the explosion-proof copper sheet of explosion proof nut (not shown) and setting in explosion proof nut (not shown) below
(not shown), explosion proof nut centre (not shown) are provided with through through-hole, if the air pressure in high-pressure gasbag 2 is excessively high, will break through
Explosion-proof copper sheet (not shown), allows high pressure gas to flow out, and prevents because of the excessively high generation explosion danger of air pressure.Preferably, in this implementation
In example, in order to keep decompression breathing equipment structure provided by the invention simpler compact, achieve the purpose that portable, main gas channel 15
End be hypobaric chamber 13, that is to say that main 15 end of gas channel of 13 bottom of hypobaric chamber is arranged in safety valve 18, if high-pressure gasbag 2
In air pressure it is excessively high, explosion-proof copper sheet (not shown) is broken through, to high-pressure gasbag 2 is connected to hypobaric chamber 13, using gas vent
14 are discharged to outside, and the structure and traditional external safety valve 18 that is arranged in have notable difference, and space utilization rate is higher, is not necessarily to
Exit passageway is separately provided.
Further, decompression breathing equipment provided by the invention further includes channel attached by monitoring with main gas channel 15
Pressure-detecting device 19.Bourdon tube pressure gauge can be used in pressure-detecting device 19, to detect gas pressure in high-pressure gasbag 2
Size, convenient for users to understand high-pressure gasbag 2 in air conditions, be confirmed whether can directly using or filled
Gas.
Embodiment 2
The present invention provides a kind of Portable diving breathing device, including the decompression breathing equipment as described in embodiment one, and
The high-pressure gas cylinder being detachably connected with 11 breathing equipment of pressure reducing valve.Generally, high-pressure gas Aluminum Bottle can be used.
Specifically, 1 bottom of main valve body is provided with connector 21, and there are two the settings of gas vent 14, is separately positioned on connector
21 two sides, gas vent 14 are provided with annular silica gel gasket 22 outside, and high-pressure gas cylinder is connected by connector 21 and 1 spiral shell of main valve body,
And fixed silica gel pad 22.
Portable diving breathing device provided by the invention, user can be breathed under water by biting breathing bite, be adopted
With small-sized high-pressure gas Aluminum Bottle, do not have to binding on the user's body, it is easy to carry, under water when, due to the buoyancy of water,
The most of gravity for counteracting Portable diving breathing device, only needing user to bite breathing bite can freely move under water.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of decompression breathing equipment, which is characterized in that including main valve body, and the pressure reducing valve being arranged on the main valve body, it fills
Air valve, hypobaric chamber, spiracle and gas vent are provided with main gas channel, relief passage and filling channel in the main valve body,
In:
The main gas channel is connected to high-pressure gasbag；
The main gas channel is connected to the charge valve by filling channel, for inflating to the high-pressure gasbag；
The main gas channel is connected to the pressure reducing valve by relief passage, and the pressure reducing valve is used for high pressure air reducing；
The pressure reducing valve is connected to the hypobaric chamber, to supply to hypobaric chamber input low-pressure gas, then by the pneumostome
User's breathing；
The gas vent is connected to the hypobaric chamber, to exclude the exhaust gas of exhalation.
2. decompression breathing equipment as described in claim 1, which is characterized in that low pressure diaphragm is provided in the hypobaric chamber, it is described
Pressure reducing valve includes adjusting component and pressure reducing valve screw nut, in which:
The adjusting component is connect with the low pressure diaphragm operability；
The pressure reducing valve screw nut is fixed at the relief passage mouth；
The adjusting component have a pressure reducing valve plug, the adjusting component can move up and down with push pressure reducing valve plug it is close/
Far from the pressure reducing valve screw nut, with pressure reducing valve described in off/on.
3. decompression breathing equipment as claimed in claim 2, which is characterized in that the adjusting component further includes active lever, with
And first elastic component,
The low pressure diaphragm generates deformation with the pressure oscillation of the hypobaric chamber, and one end of the active lever is against described
The setting of low pressure diaphragm, the other end abut the pressure reducing valve plug,
First elastic component is arranged in the bottom of the pressure reducing valve plug, and first elastic component saves certain elastic force with by institute
Pressure reducing valve plug is stated close to pressure reducing valve screw nut, to close pressure reducing valve,
When the hypobaric chamber is in negative pressure state, the low pressure diaphragm deformation pushes the active lever, and the active lever pushes away
The pressure reducing valve plug is moved far from the pressure reducing valve screw nut, to open pressure reducing valve.
4. decompression breathing equipment as claimed in claim 3, which is characterized in that the active lever includes primary lever and second level
Lever, wherein
Described movable one end of primary lever abuts the low pressure diaphragm, and the upside of the other end is fixed,
Described second lever one end is fixed, and the other end abuts the downside of the fixed one end of the primary lever.
5. decompression breathing equipment as described in claim 1, which is characterized in that the charge valve includes inflation valve head, charge valve
Plug and the second elastic component,
The filling channel runs through the inflation valve head, and the inflation valve head is detachably arranged on the main valve body, and described the
The bottom of the charge valve plug is arranged in two elastic components, and second elastic component saves certain elastic force to push the charge valve
Plug closes the filling channel.
6. decompression breathing equipment as described in claim 1, which is characterized in that further include that the main gas channel end is arranged in
Safety valve.
7. decompression breathing equipment as described in claim 1, which is characterized in that further include logical by monitoring with the main gas channel
The pressure-detecting device of road connection.
8. decompression breathing equipment as described in claim 1, which is characterized in that be provided with breathing bite at the spiracle.
9. a kind of Portable diving breathing device, which is characterized in that including the described in any item decompression breathing dresses of such as claim 1-8
It sets, and the high-pressure gas cylinder being detachably connected with the decompression breathing equipment.
10. Portable diving breathing device as claimed in claim 9, which is characterized in that the main valve body bottom is provided with connection
The two sides of the connector are arranged in head, the gas vent, and annular silica gel gasket, the high pressure storage are provided with outside the gas vent
Gas cylinder is connected by the connector and the main valve body spiral shell, and the fixed silica gel pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077562.0A CN109050832A (en) | 2018-09-15 | 2018-09-15 | A kind of decompression breathing equipment and Portable diving breathing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077562.0A CN109050832A (en) | 2018-09-15 | 2018-09-15 | A kind of decompression breathing equipment and Portable diving breathing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109050832A true CN109050832A (en) | 2018-12-21 |
Family
ID=64761805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811077562.0A Pending CN109050832A (en) | 2018-09-15 | 2018-09-15 | A kind of decompression breathing equipment and Portable diving breathing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109050832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143267A (en) * | 2019-06-19 | 2019-08-20 | 彭亚兵 | Portable diving breathing device |
| CN113928512A (en) * | 2021-11-18 | 2022-01-14 | 东台市兴盾船舶设备有限公司 | Diving piston type primary head regulator |
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| CN208593486U (en) * | 2018-07-26 | 2019-03-12 | 王顺 | Breather valve and the aqualung for using the breather valve |
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| DE69024828D1 (en) * | 1989-02-15 | 1996-02-29 | Normalair Garrett Ltd | Auxiliary oxygen bottle for aircraft personnel |
| US4996982A (en) * | 1989-04-25 | 1991-03-05 | Submersible Systems, Inc. | Emergency breathing apparatus with holster released regulator valve |
| TWM297340U (en) * | 2006-03-27 | 2006-09-11 | Well Marine Diver Entpr Co Ltd | First stage structure improvement of a backup gas cylinder for diving |
| CN201338720Y (en) * | 2009-01-19 | 2009-11-04 | 成茂兴实业有限公司 | Conformation of secondary decompression standby air bottle head aspirator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143267A (en) * | 2019-06-19 | 2019-08-20 | 彭亚兵 | Portable diving breathing device |
| CN113928512A (en) * | 2021-11-18 | 2022-01-14 | 东台市兴盾船舶设备有限公司 | Diving piston type primary head regulator |
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Application publication date: 20181221 |
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| WD01 | Invention patent application deemed withdrawn after publication |