CN220465759U - Release valve of diving breathing apparatus - Google Patents
Release valve of diving breathing apparatus Download PDFInfo
- Publication number
- CN220465759U CN220465759U CN202322173391.4U CN202322173391U CN220465759U CN 220465759 U CN220465759 U CN 220465759U CN 202322173391 U CN202322173391 U CN 202322173391U CN 220465759 U CN220465759 U CN 220465759U
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- CN
- China
- Prior art keywords
- lever
- release
- bracket
- air
- cavity
- Prior art date
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- 230000009189 diving Effects 0.000 title claims abstract description 18
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- 208000000059 Dyspnea Diseases 0.000 description 2
- 206010013975 Dyspnoeas Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a release valve of a diving breathing apparatus, which comprises a bracket, a release rod, a return spring, a primary lever and a secondary lever; the bracket is internally provided with an air cavity, the air cavity comprises a lower cavity, an air passage and an upper cavity which are sequentially communicated from bottom to top, and the bracket is provided with an air inlet hole communicated with the lower cavity and an air outlet hole communicated with the upper cavity; the release rod can be movably arranged up and down in the bracket and stretches into the air cavity, the release rod is in clearance fit with the air passage, the plug is arranged on the release rod, the three-level lever, the two-level lever and the one-level lever are linked to enable the release rod to move downwards, the lever principle is utilized, the elasticity of the reset spring can be overcome only by applying small force on the three-level lever, and therefore the valve is opened to release air, breathing is easier, convenience is brought to use, and the utility model is of an integrated structure, and disassembly and assembly are convenient.
Description
Technical Field
The utility model relates to the technical field of accessories of diving equipment, in particular to a release valve of a diving breathing apparatus.
Background
The diving breathing apparatus is mainly used for providing breathing air for a diver during diving, compressed air is used in the using process, and the working principle is as follows: the high-pressure air is filled into the air bottle through the air filling pipe joint, the main valve switch is opened, the high-pressure air sequentially passes through the pressure reducer, after first-stage pressure reduction is carried out, medium-pressure air with pressure not more than 0.9MPa is output, and then the medium-pressure air is sent to the secondary respiratory valve through the medium-pressure air guide pipe, the secondary respiratory valve carries out secondary pressure reduction on the medium-pressure air according to the inhalation amount of a wearer, the depressurized air enters the oral cavity for breathing of the wearer, and the turbid air exhaled by a human body is exhausted into the atmosphere through the exhalation valve on the secondary respiratory valve, so that the air always flows along one direction and cannot flow reversely.
The diving breathing apparatus is internally provided with a release valve, and the main structure of the release valve comprises a bracket, a release rod, a return spring, a primary lever and a secondary lever; the bracket is internally provided with an air cavity, the air cavity comprises a lower cavity, an air passage and an upper cavity which are sequentially communicated from bottom to top, and the bracket is provided with an air inlet hole communicated with the lower cavity and an air outlet hole communicated with the upper cavity; the release rod can be arranged on the bracket in a vertically movable way and extends into the air cavity, the release rod is in clearance fit with the air passage, the release rod is provided with a plug, the plug is positioned in the lower cavity, and the plug opens or blocks the air passage along with the vertical movement of the release rod; the reset spring is sleeved on the release rod and is positioned in the lower chamber, and the reset spring promotes the release rod to move upwards; the primary lever is arranged on the bracket and promotes the release lever to move downwards; the secondary lever is arranged on the bracket and is positioned above the primary lever, and the secondary lever drives the primary lever to swing downwards;
however, in the prior art, the diaphragm on the valve body of the breather valve directly acts on the secondary lever, the secondary lever needs to overcome the elastic force of the return spring to move downwards, so that oxygen is opened, and the elastic force of the return spring is larger, so that a user needs to breathe with force to overcome the elastic force of the return spring, thereby causing dyspnea and inconvenience in use. Therefore, it is necessary to study a scheme to solve the above-mentioned problems.
Disclosure of Invention
In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and it is a primary object of the present utility model to provide a release valve for a scuba, which can effectively solve the problem of dyspnea caused by the existing release valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a release valve of a diving breathing apparatus comprises a bracket, a release lever, a return spring, a primary lever and a secondary lever; the bracket is internally provided with an air cavity, the air cavity comprises a lower cavity, an air passage and an upper cavity which are sequentially communicated from bottom to top, and the bracket is provided with an air inlet hole communicated with the lower cavity and an air outlet hole communicated with the upper cavity; the release rod can be arranged on the bracket in a vertically movable way and extends into the air cavity, the release rod is in clearance fit with the air passage, the release rod is provided with a plug, the plug is positioned in the lower cavity, and the plug opens or blocks the air passage along with the vertical movement of the release rod; the reset spring is sleeved on the release rod and is positioned in the lower chamber, and the reset spring promotes the release rod to move upwards; the primary lever is arranged on the bracket and promotes the release lever to move downwards; the secondary lever is arranged on the bracket and is positioned above the primary lever, and the secondary lever drives the primary lever to swing downwards; the device further comprises a third lever which is arranged on the bracket and is positioned above the second lever, and the third lever drives the second lever to swing downwards.
Preferably, the primary lever comprises a first hinge part and a first pressing part which are sequentially connected, the first hinge part is hinged with the bracket, and the first pressing part is pressed against the top end surface of the release rod and drives the release rod to move downwards; the second lever is positioned above the first lever and comprises a second hinging part, a second abutting part and a third abutting part which are sequentially connected, the second hinging part is hinged with the bracket, and the second abutting part abuts against the first abutting part; the third lever is positioned above the second lever and comprises a third hinging part, a fourth pressing part and a fifth pressing part which are sequentially connected, the third hinging part is hinged with the bracket, and the fourth pressing part is pressed against the third pressing part and drives the second lever to swing downwards.
Preferably, the first pressing part is provided with a screw hole, an adjusting screw is screwed in the screw hole, and the adjusting screw is pressed against the top end surface of the release rod.
Preferably, the third pressing part is provided with a shaft body, the recess of the fourth pressing part is provided with a chute, and the shaft body is embedded in the chute and slides along the chute.
Preferably, the fourth pressing portion and the fifth pressing portion are two portions arranged side by side and separated.
Preferably, the bracket is provided with a through hole, and a fixing screw fixedly connected with the outside is arranged in the through hole.
Preferably, the bracket comprises a main body and a valve cover, the valve cover is arranged at the bottom of the main body and is enclosed to form the air cavity, the air inlet hole is positioned on the valve cover, and the air outlet hole is positioned on the main body.
Preferably, a filter screen is arranged in the lower chamber.
Preferably, a guide hole is formed in the bottom of the support, the guide hole is communicated with the lower cavity, the lower end of the release rod penetrates through the guide hole to extend downwards, a sealing ring is sleeved at the lower end of the release rod, and the sealing ring seals the guide hole.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
the three-level lever is further arranged, so that the three-level lever, the two-level lever and the one-level lever are linked to enable the release lever to move downwards, the lever principle is utilized, and the elasticity of the return spring can be overcome by only applying small force on the three-level lever, so that the valve is opened to release gas, the breathing is easier, the use is facilitated, and the integrated structure is convenient to assemble and disassemble.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of the present utility model;
FIG. 2 is a schematic perspective view of another angle of the preferred embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a preferred embodiment of the present utility model;
FIG. 4 is a perspective view showing the use state of the preferred embodiment of the present utility model;
FIG. 5 is a sectional view showing the use state of the preferred embodiment of the present utility model.
The attached drawings are used for identifying and describing:
10. bracket 11, main body
12. Valve cover 13 and fixing screw
14. Filter screen 101, air cavity
1011. Lower chamber 1012, airway
1013. Upper chamber 102, air inlet
103. Air outlet hole 104, through hole
105. Guide hole 20, release lever
21. Plug 22 and sealing ring
30. Return spring 40, primary lever
41. First hinge portion 42, first pressing portion
43. Adjusting screw 401, screw hole
50. Two-stage lever 51, second hinge
52. The second pressing part 53, the third pressing part
54. Shaft body 60, three-stage lever
61. Third hinge portion 62, fourth pressing portion
63. Fifth pressing part 601 and chute
70. Valve body 71, diaphragm
Detailed Description
Referring to fig. 1 to 5, a specific structure of a preferred embodiment of the present utility model is shown, which includes a bracket 10, a release lever 20, a return spring 30, a primary lever 40, a secondary lever 50, and a tertiary lever 60.
The support 10 is internally provided with an air cavity 101, the air cavity 101 comprises a lower chamber 1011, an air flue 1012 and an upper chamber 1013 which are communicated from bottom to top, and the support 10 is provided with an air inlet hole 102 communicated with the lower chamber 1011 and an air outlet hole 103 communicated with the upper chamber 1013. Specifically, the bracket 10 includes a main body 11 and a valve cover 12, the valve cover 12 is mounted at the bottom of the main body 11 and is enclosed to form the air cavity 101, the air inlet hole 102 is positioned on the valve cover 12, the air outlet hole 103 is positioned on the main body 11, and the bracket has simple structure and convenient disassembly and assembly; the bracket 10 is provided with a through hole 104, and a fixing screw 13 fixedly connected with the outside is arranged in the through hole 104. And, a filter 14 is provided in the lower chamber 1011 to filter the gas. In addition, a guide hole 105 is formed at the bottom of the bracket 10, and the guide hole 105 communicates with the lower chamber 1011.
The release rod 20 is movably arranged on the bracket 10 up and down and extends into the air cavity 101, the release rod 20 is in clearance fit with the air channel 1012, the release rod 20 is provided with a plug 21, the plug 21 is positioned in the lower cavity 1011, and the plug 21 opens or closes the air channel 1012 along with the up and down movement of the release rod 20; the return spring 30 is sleeved on the release lever 20 and is located in the lower chamber 1011, and the return spring 30 urges the release lever 20 to move upwards, so that the plug 21 keeps blocking the air passage 1012. In this embodiment, the lower end of the release lever 20 extends downward through the guide hole, and the lower end of the release lever 20 is sleeved with a sealing ring 22, and the sealing ring 22 seals the guide hole 105 to avoid air leakage.
The primary lever 40 is provided to the bracket 10 and urges the release lever 20 downward. Specifically, in this embodiment, the primary lever 40 includes a first hinge portion 41 and a first pressing portion 42 that are sequentially connected, where the first hinge portion 41 is hinged to the bracket 10, the first pressing portion 42 presses against the top end surface of the release lever 20 and urges the release lever 20 to move downward, and a screw hole 401 is formed in the first pressing portion 42, and an adjusting screw 43 is screwed into the screw hole 401, and the adjusting screw 43 presses against the top end surface of the release lever 20 to adjust the height of the release lever 20 as required.
The secondary lever 50 is disposed on the bracket 10 above the primary lever 40, and the secondary lever 50 urges the primary lever 40 to swing downward. Specifically, the secondary lever 50 is located above the primary lever 40, and the secondary lever 50 includes a second hinge portion 51, a second pressing portion 52 and a third pressing portion 53 that are sequentially connected, where the second hinge portion 51 is hinged to the bracket 10, and the second pressing portion 52 is pressed against the first pressing portion 42; in the present embodiment, a shaft 54 is disposed on the third pressing portion 53.
The tertiary lever 60 is provided on the bracket 10 above the secondary lever 50, and the tertiary lever 60 urges the secondary lever 50 to swing downward. Specifically, in the present embodiment, the tertiary lever 60 is located above the secondary lever 50, and the tertiary lever 60 includes a third hinge portion 61, a fourth pressing portion 62 and a fifth pressing portion 63 that are sequentially connected, the third hinge portion 61 is hinged to the bracket 10, and the fourth pressing portion 62 abuts against the third pressing portion 53 and urges the secondary lever 50 to swing downward. In the present embodiment, a chute 601 is concavely disposed on the fourth pressing portion 62, and the shaft 54 is embedded in the chute 601 and slides along the chute 601. And, the fourth pressing portion 62 and the fifth pressing portion 63 are two disposed side by side and apart.
The working principle of the embodiment is described in detail as follows:
when the respirator is used, the respirator is arranged in the valve body 70 of the respirator, the diaphragm 71 in the valve body 70 is propped against the fifth propping part 63, and in the breathing process, the diaphragm 71 moves up and down:
when the diaphragm 71 moves downward, the diaphragm 71 acts on the fifth pressing portion 63 to cause the tertiary lever 60 to swing downward, the tertiary lever 60 to swing downward to cause the secondary lever 50 to swing downward, the secondary lever 50 to swing downward to cause the primary lever 40 to swing downward, the primary lever 40 to swing downward to cause the release lever 20 to move downward, the release lever 20 to move downward to cause the plug 21 to open the air passage 1012, then oxygen enters the lower chamber 1011 from the air inlet hole 102, then passes through the air passage 1012 and the upper chamber 1013 in sequence, and then is output from the air outlet hole 103 for inhalation by a user, and at this time, the return spring 30 is in a compressed state.
When the diaphragm 71 moves upward, the diaphragm 71 does not act on the fifth pressing portion 63 any more, the return spring 30 resumes the deformation, the three-stage lever 60, the two-stage lever 50 and the one-stage lever 40 swing upward and return under the action of the return spring 30, the release lever 20 moves upward and returns to the original position so that the plug 21 blocks the air passage 1012, oxygen cannot pass through the air passage 1012, and the air outlet 103 stops outputting oxygen.
The design key points of the utility model are as follows: the three-level lever is further arranged, so that the three-level lever, the two-level lever and the one-level lever are linked to enable the release lever to move downwards, the lever principle is utilized, and the elasticity of the return spring can be overcome by only applying small force on the three-level lever, so that the valve is opened to release gas, the breathing is easier, the use is facilitated, and the integrated structure is convenient to assemble and disassemble.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. A release valve of a diving breathing apparatus comprises a bracket, a release lever, a return spring, a primary lever and a secondary lever; the bracket is internally provided with an air cavity, the air cavity comprises a lower cavity, an air passage and an upper cavity which are sequentially communicated from bottom to top, and the bracket is provided with an air inlet hole communicated with the lower cavity and an air outlet hole communicated with the upper cavity; the release rod can be arranged on the bracket in a vertically movable way and extends into the air cavity, the release rod is in clearance fit with the air passage, the release rod is provided with a plug, the plug is positioned in the lower cavity, and the plug opens or blocks the air passage along with the vertical movement of the release rod; the reset spring is sleeved on the release rod and is positioned in the lower chamber, and the reset spring promotes the release rod to move upwards; the primary lever is arranged on the bracket and promotes the release lever to move downwards; the secondary lever is arranged on the bracket and is positioned above the primary lever, and the secondary lever drives the primary lever to swing downwards; the method is characterized in that: the device further comprises a third lever which is arranged on the bracket and is positioned above the second lever, and the third lever drives the second lever to swing downwards.
2. The release valve of scuba diving, as defined in claim 1, wherein: the first-stage lever comprises a first hinge part and a first pressing part which are sequentially connected, the first hinge part is hinged with the bracket, and the first pressing part is pressed against the top end surface of the release rod and drives the release rod to move downwards; the second lever is positioned above the first lever and comprises a second hinging part, a second abutting part and a third abutting part which are sequentially connected, the second hinging part is hinged with the bracket, and the second abutting part abuts against the first abutting part; the third lever is positioned above the second lever and comprises a third hinging part, a fourth pressing part and a fifth pressing part which are sequentially connected, the third hinging part is hinged with the bracket, and the fourth pressing part is pressed against the third pressing part and drives the second lever to swing downwards.
3. The release valve of scuba diving, as defined in claim 2, wherein: the first propping part is provided with a screw hole, an adjusting screw is screwed in the screw hole, and the adjusting screw is propped against the top end surface of the release rod.
4. The release valve of scuba diving, as defined in claim 2, wherein: the third pressing part is provided with a shaft body, the fourth pressing part is concavely provided with a chute, and the shaft body is embedded in the chute and slides along the chute.
5. The release valve of scuba diving, as defined in claim 2, wherein: the fourth pressing part and the fifth pressing part are two parts which are arranged side by side and separated.
6. The release valve of scuba diving, as defined in claim 1, wherein: the bracket is provided with a through hole, and a fixing screw fixedly connected with the outside is arranged in the through hole.
7. The release valve of scuba diving, as defined in claim 1, wherein: the support comprises a main body and a valve cover, the valve cover is arranged at the bottom of the main body and is enclosed to form the air cavity, the air inlet hole is positioned on the valve cover, and the air outlet hole is positioned on the main body.
8. The release valve of scuba diving, as defined in claim 1, wherein: a filter screen is arranged in the lower chamber.
9. The release valve of scuba diving, as defined in claim 1, wherein: the bottom of support has seted up the guiding hole, and this guiding hole intercommunication lower cavity, and the lower extreme of this release lever passes the guiding hole downwardly extending, and the lower extreme cover of release lever is equipped with the sealing washer, and this sealing washer seals the guiding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322173391.4U CN220465759U (en) | 2023-08-14 | 2023-08-14 | Release valve of diving breathing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322173391.4U CN220465759U (en) | 2023-08-14 | 2023-08-14 | Release valve of diving breathing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220465759U true CN220465759U (en) | 2024-02-09 |
Family
ID=89780237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322173391.4U Active CN220465759U (en) | 2023-08-14 | 2023-08-14 | Release valve of diving breathing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220465759U (en) |
-
2023
- 2023-08-14 CN CN202322173391.4U patent/CN220465759U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |