CN218118744U - Automatic exhaust valve for underwater respirator - Google Patents
Automatic exhaust valve for underwater respirator Download PDFInfo
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- CN218118744U CN218118744U CN202221987871.3U CN202221987871U CN218118744U CN 218118744 U CN218118744 U CN 218118744U CN 202221987871 U CN202221987871 U CN 202221987871U CN 218118744 U CN218118744 U CN 218118744U
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Abstract
The utility model discloses an automatic exhaust valve for an underwater respirator, which comprises a valve body, wherein a one-way diaphragm is arranged in the valve body, and when the one-way diaphragm is opened, gas can enter an air passage from an air inlet end; a sliding groove is arranged on the end face of one end of the valve body, which is far away from the one-way diaphragm, a sliding nut is arranged in the sliding groove in a sliding fit manner, and a return spring is arranged between the sliding nut and the bottom wall of the sliding groove; the sliding nut is in threaded connection with a valve cover, one end of the valve seat, which is close to the valve cover, extends to form a flanging, one end of the valve body, which is close to the valve cover, is provided with an exhaust diaphragm, and the flanging and the sliding nut clamp the exhaust diaphragm under the action of a return spring and a compression spring to realize sealing; the utility model discloses self-bleeding's pressure value is adjustable, and simple to operate prevents that respiratory system from intaking, can make harness internal pressure and human lung pressure keep balance, prevents that the lung from weighing wounded.
Description
Technical Field
The utility model relates to an discharge valve installation field, concretely relates to automatic discharge valve for respirator under water.
Background
The underwater circulation respirator is a device for diving for a long time by using oxygen or mixed gas. As a life support system for a human body under water, an exhaust device is needed to keep a certain pressure balance between the internal pressure of the underwater circulation respirator and the water depth pressure, and in the process of keeping balance, air needs to be exhausted to the outside to balance the pressure. Meanwhile, when the gas is exhausted, water cannot invade a breathing circulation loop of the underwater circulation respirator, so that a one-way valve is arranged on a gas inlet channel of the exhaust valve to ensure the one-way flow of the gas and prevent water from entering.
Disclosure of Invention
The aforesaid to prior art is not enough, the utility model aims to solve the technical problem that: the exhaust valve for the underwater breathing apparatus is adjustable in pressure value, convenient to install, capable of preventing the breathing circulation system from being filled with water and capable of manually and automatically exhausting.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an automatic exhaust valve for an underwater respirator comprises a valve body, wherein an air passage penetrating through two ends of the valve body is formed in the valve body, a one-way diaphragm is arranged at the air inlet end of the valve body, and when the one-way diaphragm is opened, air can enter the air passage from the air inlet end; a sliding groove which surrounds the valve body for one circle is arranged on the end face of the air outlet end of the valve body, a sliding nut is arranged in the sliding groove in a sliding fit manner, the sliding nut is connected with the inner wall of the sliding groove in a sliding fit manner, a distance is reserved between the sliding nut and the outer wall of the sliding groove, and a return spring is arranged between the sliding nut and the bottom of the sliding groove; the sliding nut is detachably connected with a valve cover, a valve seat is arranged between the valve cover and the one-way diaphragm, and a compression spring is arranged between the valve seat and the valve cover; one end of the valve seat, which is close to the valve cover, is provided with a flanging which is turned outwards, an exhaust diaphragm is arranged between the flanging and the sliding nut, and the sliding nut is matched with the flanging of the valve seat to clamp the exhaust diaphragm under the action of a return spring and a compression spring so as to close an air passage of the valve body; the valve cover is provided with an exhaust hole, and when a gap is formed between the flanging of the valve seat and the exhaust diaphragm, the air passage of the valve body is communicated with the exhaust hole through the gap.
As optimization, a plurality of flow guide grooves are arranged on the side wall of the valve seat, a gap is formed between the flanging of the valve seat and the air outlet end of the valve body, one ends of the flow guide grooves are communicated with the gap between the flanging of the valve seat and the end surface of the valve body, and the other ends of the flow guide grooves are communicated with the air passage to form an exhaust channel;
preferably, a base is further installed at one end, close to the air inlet end, of the valve body, and an air inlet hole is formed in the base and communicated with the air passage.
As an optimization, a fixed seat with a cylindrical structure is arranged in the valve body, the fixed seat is fixedly connected with the valve body, the opening end of the fixed seat faces the valve cover, the one-way diaphragm is arranged in the fixed seat and is connected with the closed end of the fixed seat in a sliding fit manner, and a plurality of air holes are also formed in the closed end of the fixed seat; the valve seat is arranged in the fixed seat in a sliding fit mode.
Preferably, the unidirectional membrane is provided with a positioning rod, and the positioning rod is fixedly connected to a bottom plate of the fixing seat.
Preferably, the opening end of the fixed seat is turned outwards to form an edge, and the exhaust membrane is located between the edge and the air outlet end of the valve body and is pressed on the valve body through the edge.
Preferably, the valve cover is in threaded fit connection with the outer side of the sliding nut.
Preferably, a spring groove is formed in the end face, away from the valve cover, of the sliding nut, and the return spring is arranged in the spring groove.
Preferably, the middle of the valve seat is recessed towards a direction departing from the valve cover to form a containing groove, and the compression spring is arranged in the containing groove.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a set up the exhaust diaphragm in the valve body to the exhaust diaphragm passes through the disk seat and presss from both sides mutually with sliding nut and seals, receives atmospheric pressure when being backed down at the disk seat, can realize self-bleeding, and when pressing down the valve gap on the disk seat, sliding nut no longer supports the exhaust diaphragm, realizes manual exhaust, and self-bleeding's pressure value is adjustable, and simple to operate prevents that respiratory system from intaking, can make harness internal pressure and human lung pressure keep balance, prevents that the lung from weighing wounded.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is an assembly view of the present invention;
in the figure, 1, a valve cover 2, a compression spring 3, a flanging 4, a valve seat 5, a one-way diaphragm 6, a fixed seat 7, an exhaust diaphragm 8, a sliding nut 9, a return spring 10, a valve body 13, a base, a 14 sliding groove, a 15 air passage, a 16 diversion groove, a 19 air inlet hole, a 21 positioning rod, a 22 edge, a 23 spring groove and a 24 accommodating groove are arranged.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The embodiment is as follows:
as shown in fig. 1-2, an automatic exhaust valve for an underwater respirator comprises a valve body 10, an air passage 15 penetrating through two ends of the valve body 10 is arranged in the valve body 10, a one-way diaphragm 5 is arranged at an air inlet end of the valve body 10, and when the one-way diaphragm 5 is opened, air can enter the air passage 15 from the air inlet end. Specifically, a fixing seat 6 with a cylindrical structure is arranged in the valve body 10, the fixing seat 6 is fixedly connected with the valve body 10, the opening end of the fixing seat faces the valve cover 1, and the one-way diaphragm 5 is arranged in the fixing seat 6 and is connected with the closed end of the fixing seat 6 in a sliding fit mode. A positioning rod 21 is arranged on the unidirectional membrane 5, and the positioning rod 21 is fixedly connected to the bottom plate of the fixed seat 6.
The closed end of the fixed seat 6 is also provided with a plurality of air holes; the valve seat 4 is arranged in the fixed seat 6 in a sliding fit manner. A base 13 is further installed at one end of the valve body 10 close to the air inlet end, an air inlet hole 19 is formed in the base 13, and the air inlet hole 19 is communicated with the air passage 15. The valve comprises a valve body 10 and is characterized in that a sliding groove 14 surrounding the valve body in a circle is formed in the end face of the air outlet end of the valve body 10, a sliding nut 8 is arranged in the sliding groove 14 in a sliding fit mode, the sliding nut 8 is connected with the inner wall of the sliding groove 14 in a sliding fit mode, a distance is reserved between the sliding nut 8 and the outer wall of the sliding groove 14, a return spring 9 is arranged between the sliding nut 8 and the bottom of the sliding groove 14, a spring groove 23 is formed in the end face, away from the valve cover 1, of the sliding nut 8, and the return spring 9 is arranged in the spring groove 23. The sliding nut 8 is connected with a valve cover 1 in a threaded fit mode, a valve seat 4 is arranged between the valve cover 1 and the one-way diaphragm 5, a compression spring 2 is arranged between the valve seat 4 and the valve cover 1, specifically, the middle of the valve seat 4 is sunken towards the direction departing from the valve cover 1 to form a containing groove 24, and the compression spring 2 is arranged in the containing groove 24. One end of the valve seat 4, which is close to the valve cover 1, is provided with a flanging 3 which is turned outwards, an exhaust diaphragm 7 is arranged between the flanging 3 and the sliding nut 8, and under the action of the return spring 9 and the compression spring 2, the sliding nut 8 is matched with the flanging 3 of the valve seat 4 to clamp the exhaust diaphragm 7 tightly, so that an air passage 15 of the valve body 10 is closed. The opening end of the fixed seat 6 is folded outwards to form a rim 22, and the exhaust membrane 7 is located between the rim 22 and the air outlet end of the valve body 10 and is pressed on the valve body 10 by the rim 22.
The valve cover 1 is provided with an exhaust hole, and when a gap is formed between the flanging 3 of the valve seat 4 and the exhaust diaphragm 7, the air passage 15 of the valve body 10 is communicated with the exhaust hole through the gap. In order to manually exhaust when the valve cover 1 is manually pressed, a plurality of diversion grooves 16 are formed in the side wall of the valve seat 4, a gap is formed between the flanging 3 of the valve seat 4 and the air outlet end of the valve body 10, one end of each diversion groove 16 is communicated with the gap between the flanging 3 of the valve seat 4 and the end face of the valve body 10, and the other end of each diversion groove 16 is communicated with the air passage 15 to form an exhaust channel.
When the respirator is used, overpressure gas enters the lower part of the valve body through the air inlet hole in the base and enters the cavity of the fixed seat and the valve seat through the one-way diaphragm in the floating process of the respirator. The valve seat is pushed to move upwards against the pressure of the compression spring along with the rise of the pressure, so that a gap is formed between the flanging of the valve seat and the exhaust diaphragm, and the gas is exhausted. After the gas is discharged, the pressure in the cavity between the fixed seat and the valve seat is reduced, and the pressure of the pressure spring is greater than the pressure of the gas applied to the valve seat, so that the valve seat moves downwards. The flanging of the valve seat presses the exhaust diaphragm to seal under the action of the downward pressure of the compression spring.
When manual exhaust is performed, the valve cover is pressed, and the valve cover and the sliding nut are connected together through threads and move downwards together against the elastic force of the return spring. At the moment, the exhaust diaphragm loses the lower support and does not have a sealing function, and the gas in the breathing circuit flows out of the exhaust valve through the flow guide groove on the valve seat. After the exhaust is finished, the pressure on the valve cover is removed, and the sliding nut is lifted under the action of the return spring to provide sealing support for the lower part of the exhaust diaphragm so that the exhaust valve is airtight.
The utility model discloses a set up the exhaust diaphragm in the valve body to the exhaust diaphragm passes through the disk seat and presss from both sides sealed mutually with sliding nut, when the disk seat receives atmospheric pressure to be backed down, can realize self-bleeding, when pressing the valve gap on the disk seat, sliding nut no longer supports the exhaust diaphragm, realizes manual exhaust, and self-bleeding's pressure value is adjustable, simple to operate prevents that respiratory system from intaking, can make harness internal pressure and human lung pressure keep balance, prevents lung's crushing.
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 without departing from the spirit and scope of the technical solutions of the present invention, all should be covered in the scope of the claims of the present invention.
Claims (9)
1. An automatic exhaust valve for an underwater respirator is characterized by comprising a valve body, wherein an air passage penetrating through two ends of the valve body is formed in the valve body; a sliding groove which surrounds the valve body for one circle is arranged on the end face of the air outlet end of the valve body, a sliding nut is arranged in the sliding groove in a sliding fit manner, the sliding nut is connected with the inner wall of the sliding groove in a sliding fit manner, a distance is reserved between the sliding nut and the outer wall of the sliding groove, and a return spring is arranged between the sliding nut and the bottom of the sliding groove; the sliding nut is detachably connected with a valve cover, a valve seat is arranged between the valve cover and the one-way diaphragm, and a compression spring is arranged between the valve seat and the valve cover; one end of the valve seat, which is close to the valve cover, is provided with a flanging which is turned outwards, an exhaust diaphragm is arranged between the flanging and the sliding nut, and the sliding nut is matched with the flanging of the valve seat to clamp the exhaust diaphragm under the action of a return spring and a compression spring so as to close an air passage of the valve body; the valve cover is provided with an exhaust hole, and when a gap is formed between the flanging of the valve seat and the exhaust diaphragm, the air passage of the valve body is communicated with the exhaust hole through the gap.
2. The automatic exhaust valve for the underwater respirator according to claim 1, wherein a plurality of flow guide grooves are formed in the side wall of the valve seat, a gap is formed between the flanging of the valve seat and the air outlet end of the valve body, one ends of the flow guide grooves are communicated with the gap between the flanging of the valve seat and the end face of the valve body, and the other ends of the flow guide grooves are communicated with the air passage to form an exhaust passage.
3. The automatic exhaust valve for the underwater respirator as claimed in claim 1, wherein a base is further installed at one end of the valve body close to the air inlet end, an air inlet hole is formed in the base, and the air inlet hole is communicated with the air passage.
4. The automatic exhaust valve for the underwater respirator according to claim 1, wherein a fixing seat with a cylindrical structure is arranged in the valve body, the fixing seat is fixedly connected with the valve body, the open end of the fixing seat faces the valve cover, the one-way diaphragm is arranged in the fixing seat and is connected with the closed end of the fixing seat in a sliding fit manner, and a plurality of air holes are further formed in the closed end of the fixing seat; the valve seat is arranged in the fixed seat in a sliding fit mode.
5. The automatic exhaust valve for the underwater respirator as claimed in claim 4, wherein a positioning rod is arranged on the one-way diaphragm, and the positioning rod is fixedly connected to a bottom plate of the fixing seat.
6. The automatic exhaust valve for the underwater respirator according to claim 4, wherein the opening end of the fixed seat is folded outwards to form a rim, and the exhaust membrane is located between the rim and the air outlet end of the valve body and is pressed on the valve body by the rim.
7. The automatic exhaust valve for the underwater respirator as claimed in claim 1, wherein the valve cover is in threaded fit connection with the outer side of the sliding nut.
8. The automatic exhaust valve for the underwater respirator according to claim 1, wherein a spring groove is formed in an end face of the sliding nut, which faces away from the valve cover, and the return spring is placed in the spring groove.
9. The automatic exhaust valve for the underwater respirator according to claim 1, wherein a containing groove is formed in the middle of the valve seat in a concave manner in a direction away from the valve cover, and the compression spring is placed in the containing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987871.3U CN218118744U (en) | 2022-07-29 | 2022-07-29 | Automatic exhaust valve for underwater respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987871.3U CN218118744U (en) | 2022-07-29 | 2022-07-29 | Automatic exhaust valve for underwater respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218118744U true CN218118744U (en) | 2022-12-23 |
Family
ID=84520721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221987871.3U Active CN218118744U (en) | 2022-07-29 | 2022-07-29 | Automatic exhaust valve for underwater respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218118744U (en) |
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2022
- 2022-07-29 CN CN202221987871.3U patent/CN218118744U/en active Active
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