CN214946523U - Breather valve box for respirator - Google Patents
Breather valve box for respirator Download PDFInfo
- Publication number
- CN214946523U CN214946523U CN202120895994.3U CN202120895994U CN214946523U CN 214946523 U CN214946523 U CN 214946523U CN 202120895994 U CN202120895994 U CN 202120895994U CN 214946523 U CN214946523 U CN 214946523U
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- valve box
- breathing
- valve
- box body
- hole
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Abstract
The utility model discloses an underwater respiration conversion valve structure, in particular to a respiration valve box, which comprises a cylindrical valve box body, wherein two ends of the valve box body are respectively provided with an exhalation valve seat and an inhalation valve seat, the cylinder wall of the valve box body is provided with a respiration port, the position of the inner side of the valve box body corresponding to the respiration port is coaxially provided with a cylindrical valve box sleeve, and the position of the side wall of the valve box sleeve corresponding to the respiration port is provided with an air vent communicated with the respiration port; the valve box is characterized by further comprising a shifting rod, an arc-shaped shifting rod hole is formed in the position, corresponding to the valve box sleeve, on the side wall of the valve box body along the circumferential direction of the valve box sleeve, the valve box sleeve can be driven to rotate through the shifting rod, and the vent hole can be opposite to or completely staggered with the breathing hole. The volume is less, the rotary valve core is opened and closed flexibly under water, the sealing is reliable, the stability is good, the service life is long, and condensed water and residual water are easy to remove.
Description
Technical Field
The utility model relates to a change-over valve for dive respirator, concretely relates to breather valve case that respirator was used.
Background
The diving harness is a life support device for divers, guarantees the underwater safe breathing of the divers, and is a necessary guarantee for carrying out various operations. A breather valve switching valve belongs to an important part in a breathing circulation system of diving equipment. The one-way circulating flow of the breathing gas of the diver is ensured, fresh gas is inhaled during use, the exhaled gas cannot be inhaled again by the diver, and carbon dioxide poisoning is prevented.
The breathing change-over valve for diving in the prior art has larger volume, is inflexible when being opened or closed underwater, and is easy to have poor leakage sealing performance when a valve core is rotated. When the valve body is closed, residual water is not easy to discharge, and the recycling is affected.
Disclosure of Invention
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the problems that a breather valve is large in conversion valve volume, inflexible in rotating a valve core when the breather valve is opened or closed, waste force, poor in leakage sealing performance and not easy to drain are solved. The breather valve box structure is small in size, flexible in opening and closing of the rotary valve core underwater, reliable in sealing, good in stability, long in service life and easy to drain water.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a breathing valve box for a respirator comprises a cylindrical valve box body, wherein two ends of the valve box body are respectively provided with an exhalation valve seat and an inhalation valve seat, the cylinder wall of the valve box body is provided with a breathing port, and the breathing port is communicated with the inside of the valve box body; breathing diaphragms are arranged in the breathing valve seat and the breathing valve seat; a cylindrical valve box sleeve is coaxially arranged at the position, corresponding to the breathing port, inside the valve box body, the outer wall of the valve box sleeve is attached to the inner wall of the valve box body, and two ends of the valve box sleeve extend to the outer sides of two opposite sides of the breathing port; a vent hole communicated with the breathing hole is formed in the side wall of the valve box sleeve corresponding to the breathing hole; the valve box body is provided with a valve box sleeve, the valve box sleeve is sleeved on the valve box body, the valve box sleeve is sleeved on the valve box sleeve, and the valve box sleeve is sleeved on the valve box sleeve; the deflector rod is in sliding fit with the deflector rod hole, and the valve box sleeve can be driven to rotate through the deflector rod, so that the vent hole can be opposite to or completely staggered with the breathing hole.
Furthermore, a water drainage groove is formed in the cylinder wall of the valve box sleeve along the circumferential direction, a water drainage hole is formed in the cylinder wall of the valve box body, and when the driving lever drives the valve box sleeve to rotate to enable the air vent and the breathing port to be completely staggered, the breathing port and the water drainage hole are communicated through the water drainage groove.
Furthermore, when the deflector rod and the breathing port are positioned at two opposite sides of the valve box body, the through hole is communicated with the breathing port; when the included angle between the deflector rod and the breathing port is 90 degrees, the drain hole is communicated with the breathing port through the drainage groove, and the length of the deflector rod hole is matched with the rotation range of the deflector rod.
Furthermore, O-shaped rings are arranged at the joints of the expiration valve seat and the inspiration valve seat and the valve box body.
Furthermore, at least one first sealing ring is arranged between the two ends of the valve box sleeve and the valve box body respectively, and the first sealing rings are distributed on the two sides of the breathing port.
Furthermore, a second sealing ring is wound on the outer side of the vent hole and is fixedly connected with the valve box sleeve.
Further, the axis of the breathing port is perpendicular to the axial direction of the valve box body.
Further, the deflector rod is perpendicular to the axis of the valve box sleeve, and the deflector rod is in threaded connection with the valve box sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
the valve box body volume of the breath conversion valve is reduced by integrally forming the inspiration joint and the expiration joint with the valve box body. The valve box body is provided with an air suction valve seat and an air expiration valve seat at two ends respectively according to corresponding shapes, a valve box sleeve is arranged in the middle, a shifting rod hole is formed in the valve box body, the shifting rod is connected with the valve box sleeve, and the valve box sleeve rotates at a certain position by shifting the shifting rod to open and close the breathing valve box. When the breather valve box is closed, air can be blown in through the breathing port, so that water is discharged from the water discharge hole.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic side view of the valve housing of the present invention in an open state;
fig. 3 is a schematic side view of the valve box of the present invention in a closed state;
in the figure: 1. the breathing diaphragm 2, the breathing valve seat 3, the valve box body 4, the O-shaped ring 5, the valve box sleeve 6, the deflector rod 7, the first sealing ring 8, the breathing valve seat 9, the breathing port 10, the deflector rod hole 11, the drain hole 12, the drain tank 13 and the vent hole.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example (b):
referring to fig. 1-3, a breathing valve box for a respirator comprises a cylindrical valve box body 3, wherein two ends of the valve box body 3 are respectively provided with an exhalation valve seat 8 and an inhalation valve seat 2, the cylinder wall of the valve box body is provided with a breathing port 9, the axis of the breathing port 9 is vertical to the axial direction of the valve box body 3, and the breathing port 9 is communicated with the inside of the valve box body 3; and breathing diaphragms 1 are arranged in the breathing valve seat 8 and the breathing valve seat 2. When the breathing device is used, the mouthpiece is communicated with the breathing port 9, gas in the gas cylinder enters in one way through the breathing valve seat 2, and the exhaled gas is discharged in one way through the breathing valve seat 8, so that underwater breathing is realized. In order to better operate the opening and closing of the valve box body 3, a cylindrical valve box sleeve 5 is coaxially arranged at the position, corresponding to the breathing port 9, of the inner side of the valve box body 3, the outer wall of the valve box sleeve 5 is attached to the inner wall of the valve box body 3, and two ends of the valve box sleeve extend to the outer sides of two opposite sides of the breathing port 9; a vent hole 13 communicated with the breathing hole 9 is arranged on the side wall of the valve box sleeve 5 corresponding to the breathing hole 9. The valve box is characterized by further comprising a shifting rod 6, an arc-shaped shifting rod hole 10 is formed in the position, corresponding to the valve box sleeve 5, on the side wall of the valve box body 3 along the circumferential direction of the valve box sleeve, one end of the shifting rod 6 penetrates through the shifting rod hole 10 and then is connected with the valve box sleeve 5, specifically, the shifting rod 6 is perpendicular to the axis of the valve box sleeve 5, and the shifting rod 6 is in threaded connection with the valve box sleeve 5. The deflector rod 6 is in sliding fit with the deflector rod hole 10, and the valve box sleeve 5 can be driven to rotate through the deflector rod 6, so that the vent hole 13 can be opposite to or completely staggered with the breathing hole 9. Specifically, when the deflector rod 6 and the breathing port 9 are located on two opposite sides of the valve box body 3, the through hole is communicated with the breathing port 9, and the valve box body 3 is in an opening state. When the included angle between the deflector rod 6 and the breathing port 9 is 90 degrees, the water discharge hole 11 is communicated with the breathing port 9 through the water discharge groove 12, the valve box body 3 is in a closed state at the moment, and the length of the deflector rod hole 10 is matched with the rotation range of the deflector rod 6.
In order to discharge residual water in the valve box body 3 after the valve box body 3 is closed and facilitate next use, a drainage groove 12 is formed in the cylinder wall of the valve box sleeve 5 along the circumferential direction, a drainage hole 11 is formed in the cylinder wall of the valve box body 3, when the deflector rod 6 drives the valve box sleeve 5 to rotate to enable the vent hole 13 to be completely staggered from the breathing port 9, the drainage groove 12 communicates the breathing port 9 with the drainage hole 11, and therefore breathing condensed water or residual water in the breathing port 9 is conveniently discharged through the drainage groove 12 and the drainage hole 11.
In order to further improve the sealing effect of the valve box body 3, O-shaped rings 4 are arranged at the joints of the exhalation valve seat 8 and the inhalation valve seat 2 with the valve box body 3. At least one first sealing ring 7 is arranged between the two ends of the valve box sleeve 5 and the valve box body 3 respectively, and the first sealing rings 7 are distributed on the two sides of the breathing port 9. And a second sealing ring is wound on the outer side of the vent hole 13 and is fixedly connected with the valve box sleeve 5.
Adopt the utility model discloses, through will breathe in and connect, exhale and connect and valve box body integrated into one piece reduce breathing change-over valve's valve box body volume. The valve box body is provided with an air suction valve seat and an air expiration valve seat at two ends respectively according to corresponding shapes, a valve box sleeve is arranged in the middle, a shifting rod hole is formed in the valve box body, the shifting rod is connected with the valve box sleeve, and the valve box sleeve rotates at a certain position by shifting the shifting rod to open and close the breathing valve box. When the breather valve box is closed, air can be blown in through the breathing port, so that water is discharged from the water discharge hole.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, those skilled in the art should understand that those modifications or equivalent substitutions to the technical solutions of the present invention can be made without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.
Claims (8)
1. A breathing valve box for a respirator comprises a cylindrical valve box body, wherein two ends of the valve box body are respectively provided with an exhalation valve seat and an inhalation valve seat, the cylinder wall of the valve box body is provided with a breathing port, and the breathing port is communicated with the inside of the valve box body; breathing diaphragms are arranged in the breathing valve seat and the breathing valve seat; the breather valve is characterized in that a cylindrical valve box sleeve is coaxially arranged at the position, corresponding to the breathing port, inside the valve box body, the outer wall of the valve box sleeve is attached to the inner wall of the valve box body, and two ends of the valve box sleeve extend to the outer sides of two opposite sides of the breathing port; a vent hole communicated with the breathing hole is formed in the side wall of the valve box sleeve corresponding to the breathing hole; the valve box body is provided with a valve box sleeve, the valve box sleeve is sleeved on the valve box body, the valve box sleeve is sleeved on the valve box sleeve, and the valve box sleeve is sleeved on the valve box sleeve; the deflector rod is in sliding fit with the deflector rod hole, and the valve box sleeve can be driven to rotate through the deflector rod, so that the vent hole can be opposite to or completely staggered with the breathing hole.
2. The breather valve cartridge of claim 1, wherein a drainage channel is disposed circumferentially on the cartridge wall of the cartridge housing, and a drainage hole is disposed on the cartridge wall of the valve cartridge housing, the drainage channel connecting the breathing port to the drainage hole when the deflector rod rotates the cartridge housing to completely misalign the ventilation hole and the breathing port.
3. The breathing valve box for the respirator as claimed in claim 2, wherein the through hole is communicated with the breathing port when the deflector rod and the breathing port are positioned at two opposite sides of the valve box body; when the included angle between the deflector rod and the breathing port is 90 degrees, the drain hole is communicated with the breathing port through the drainage groove, and the length of the deflector rod hole is matched with the rotation range of the deflector rod.
4. The breathing valve box of claim 1, wherein O-rings are provided at the connection of the exhalation valve seat and the inhalation valve seat with the valve box body.
5. The breathing valve box for the respirator as claimed in claim 1, wherein at least one first sealing ring is respectively arranged between the two ends of the valve box sleeve and the valve box body, and the first sealing rings are distributed on two sides of the breathing port.
6. The breather valve box according to claim 1, wherein a second sealing ring is wound around the outside of the vent hole, and the second sealing ring is fixedly connected with the valve box sleeve.
7. A breathing valve housing for a respirator according to claim 1, wherein the axis of the breathing orifice is perpendicular to the axial direction of the housing.
8. The breathing valve box for a respirator as set forth in claim 1 wherein the deflector is perpendicular to the axis of the valve box housing and the deflector is in threaded engagement with the valve box housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895994.3U CN214946523U (en) | 2021-04-28 | 2021-04-28 | Breather valve box for respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120895994.3U CN214946523U (en) | 2021-04-28 | 2021-04-28 | Breather valve box for respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214946523U true CN214946523U (en) | 2021-11-30 |
Family
ID=79064610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120895994.3U Expired - Fee Related CN214946523U (en) | 2021-04-28 | 2021-04-28 | Breather valve box for respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214946523U (en) |
-
2021
- 2021-04-28 CN CN202120895994.3U patent/CN214946523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |