CN219062614U - Air supply valve and breathing device - Google Patents
Air supply valve and breathing device Download PDFInfo
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- CN219062614U CN219062614U CN202222837504.1U CN202222837504U CN219062614U CN 219062614 U CN219062614 U CN 219062614U CN 202222837504 U CN202222837504 U CN 202222837504U CN 219062614 U CN219062614 U CN 219062614U
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Abstract
The utility model provides an air supply valve and a breathing device, wherein the air supply valve comprises: the valve body, the state display ring fixedly sleeved outside the valve body, the container connector and the positioning column; the valve body is provided with an air outlet, an air transmission guide post and an air pressure driven component; the container joint is provided with a push rod; the bottom of the container joint is provided with an air inlet hole; the two ends of the gas transmission guide post are provided with a first opening and a second opening which are communicated; one end of the positioning column is embedded in the limit groove of the state display ring, and the other end is fixedly embedded in the container joint; when the positioning column is positioned at the first position of the limiting groove, the second opening is communicated with the air inlet hole; when the positioning column is positioned at the second position of the limiting groove, the communication between the second opening and the air inlet hole is blocked; the state display ring is provided with an open state window at a first position and a closed state window at a second position. The utility model can realize opening or closing of the air supply valve through the rotary container joint.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an air supply valve and a breathing device.
Background
In many cases we may need to use compressed gas, for example: diving and highland. In practice, compressed gas is typically stored by a gas container and delivered to a user through a gas supply valve to enable the user to breathe the compressed gas.
In the existing air supply valve, a user usually has difficulty in determining whether the air supply valve is in a normally-closed state through appearance, and in part of scenes, the user needs to intermittently use the air supply valve, namely, needs to switch the normally-closed state and the open state of the air supply valve for a plurality of times, and if the user has difficulty in determining whether the air supply valve is in the normally-closed state through appearance, the operation of the user can be influenced to cause air leakage.
Disclosure of Invention
The present utility model has been made in view of the above problems, and it is an object of the present utility model to provide an air supply valve and a breathing apparatus that overcome or at least partially solve the above problems.
In order to solve the above problems, the present utility model discloses a gas supply valve, which is characterized by comprising: the valve body, the state display ring fixedly sleeved outside the valve body, the container connector and the positioning column; the valve body is provided with an air outlet, a gas transmission guide column and a gas pressure driven component; the container joint is provided with a push rod; the top of the container connector is sleeved at the bottom of the valve body and is in threaded connection with the valve body, and the bottom of the container connector is provided with an air inlet;
the two ends of the gas transmission guide post are provided with a first opening and a second opening which are communicated; the first opening is opposite to the air pressure driven component, and the second opening is opposite to the ejector rod;
when the air pressure driven component is separated from the first opening, the first opening is communicated with the air outlet hole; when the air pressure driven component is connected with the first opening, the communication between the first opening and the air outlet hole is blocked;
one end of the positioning column is embedded in the limit groove of the state display ring, and the other end of the positioning column is fixedly embedded in the container joint;
when the positioning column is positioned at the first position of the limiting groove, the ejector rod is separated from the second opening so as to communicate the second opening with the air inlet hole; when the positioning column is positioned at the second position of the limiting groove, the ejector rod blocks the second opening so as to block the communication between the second opening and the air inlet hole;
the state display ring is provided with an open state window at the first position and a closed state window at the second position.
Optionally, an opening state identifier and a closing state identifier are arranged in the state display ring;
the opening state identifier is adjacent to the opening state window;
the closed state identifier is adjacent to the closed state window.
Optionally, an air outlet cavity communicated with the air outlet hole is arranged in the valve body;
one end of the gas transmission guide post, which is provided with the first opening, is positioned in the gas outlet cavity;
the end of the air pressure driven component opposite to the first opening is positioned in the air outlet cavity.
Optionally, the air pressure driven component comprises a push disc, a push rod, a first elastic component and a first air conveying channel arranged in the push rod;
one end of the push rod is connected with the push disc, and the other end of the push rod is arranged opposite to the first opening;
when the push rod is separated from the first opening, the first gas transmission channel is communicated with the gas outlet hole;
one end of the first elastic component is fixedly arranged, and the other end of the first elastic component is connected with the push disc;
the pushing disc and the inner side of the top of the valve body form a pneumatic cavity;
the pushing disc moves under the action of the air pressure in the pneumatic cavity and the elastic force provided by the first elastic component.
Optionally, the side wall of the valve body is provided with an air charging hole and an air charging channel extending from the air charging hole to the interior of the valve body;
the air inlet hole is communicated with the air charging hole;
the inflation hole is used for being connected with the inflation male.
Optionally, the ejector rod is provided with a second gas transmission channel; the second gas transmission channel is communicated with the gas charging channel;
the second gas transmission channel and the second opening are arranged in a staggered mode.
Optionally, the container joint is provided with a support member;
a second elastic part is connected between the top of the ejector rod and the valve body, and the bottom of the ejector rod is connected with the supporting part;
the support part is provided with a third gas transmission channel which is used for communicating the second gas transmission channel with the gas inlet hole.
Optionally, the valve body is provided with a pressure balance hole;
the pressure balance hole is used for communicating the space where the first elastic component inside the valve body is located.
Optionally, the air supply valve further comprises a high-pressure safety valve and a low-pressure safety valve; the air outlet holes comprise one or more high-pressure air outlet holes and one or more low-pressure air outlet holes; the valve body is provided with a high-pressure detection hole and a low-pressure detection hole;
the high-pressure air outlet hole is used for being connected with the high-pressure safety valve; the low-pressure air outlet is used for being connected with the low-pressure safety valve;
the high-pressure detection hole and the low-pressure detection hole are communicated with the second gas transmission channel;
the high-pressure detection hole is used for being connected with a high-pressure detection meter; the low pressure detection hole is used for being connected with a low pressure detection meter.
The embodiment of the utility model also discloses a breathing device which comprises a gas storage bottle, a gas suction component and the gas supply valve, wherein the gas storage bottle is connected with a gas inlet of the gas supply valve, and the gas suction component is connected with the gas outlet;
the inhalation component is a mouthpiece or a mask.
The utility model has the following advantages:
one end of a positioning column of the air supply valve is embedded into a limiting groove of the state display ring, the other end of the positioning column is fixedly connected with the container connector, and the positioning column moves in the limiting groove of the state display ring along with the rotation of the container connector. If the air inlet hole of the air supply valve is connected with the air storage container, when the container connector rotates to enable the positioning column to be located at the first position of the limiting groove, the air supply valve is in an open state, and air stored in the air storage container can be externally output through the air inlet hole of the container connector, the air transmission guide pillar in the valve body and the air outlet hole; when the container joint rotates to enable the positioning column to be located at the second position of the limiting groove, the air supply valve is in a closed state, air stored in the air storage container cannot be output to the outside through the air outlet hole, an open state window is arranged at the first position, a closed state window is arranged at the second position, a user can determine the state of the air supply valve through the open state window and the closed state window, and convenience in using the air supply valve and recognition rate of the working state of the user are improved.
Drawings
FIG. 1 is a block diagram of a gas supply valve of the present utility model;
FIG. 2 is a block diagram of the air supply valve of the present utility model in a closed state;
FIG. 3 is a cross-sectional view of the air supply valve of the present utility model in a closed state;
FIG. 4 is a block diagram of the air supply valve of the present utility model in an open state;
FIG. 5 is a cross-sectional view of the air supply valve of the present utility model in an open state;
FIG. 6 is a partial schematic view of FIG. 5 at C;
FIG. 7 is a partial schematic view of FIG. 3 at A;
FIG. 8 is a partial schematic view of the outlet of FIG. 3B;
FIG. 9 is another cross-sectional view of the air supply valve of the present utility model in an open state;
fig. 10 is a partial schematic view at D in fig. 9.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
One of the core ideas of the utility model is that one end of the positioning column 4 is embedded in the limit groove 21 of the state display ring 2, the other end is fixedly connected with the container joint 3, and the positioning column 4 moves in the limit groove 21 of the state display ring 2 along with the rotation of the container joint 3. If the air inlet hole 32 of the air supply valve is connected with the air storage container, when the container connector 3 rotates to enable the positioning column 4 to be located at the first position of the limiting groove 21, the air supply valve is in an open state, and air stored in the air storage container can be output outwards through the air outlet hole; when the container connector 3 rotates to enable the positioning column 4 to be located at the second position of the limiting groove 21, the air supply valve is in a closed state, air stored in the air storage container cannot be externally output through the air outlet, the opening state window 22 is arranged at the first position, the closing state window 23 is arranged at the second position, the user can determine the state of the air supply valve through the opening state window 22 and the closing state window 23, and convenience in using the air supply valve and recognition rate of the working state of the user are improved.
Referring to fig. 1, there is shown a block diagram of an air supply valve of the present utility model; referring to fig. 2, there is shown a block diagram of the air supply valve of the present utility model in a closed state; referring to fig. 3, which shows a cross-sectional view of the air supply valve of the present utility model in a closed state, the air supply valve may include:
the valve comprises a valve body 1, a state display ring 2 fixedly sleeved outside the valve body 1, a container joint 3 and a positioning column 4; the valve body 1 is provided with an air outlet, a gas transmission guide column 11 and a gas pressure driven component; the container joint 3 is provided with a push rod 31; the top of the container joint 3 is sleeved at the bottom of the valve body 1 and is in threaded connection with the valve body 1, and an air inlet hole 32 is formed in the bottom of the container joint 3;
the two ends of the gas transmission guide post 11 are provided with a first opening 111 and a second opening 112 which are communicated; the first opening 111 is opposite to the pneumatic driven component, and the second opening 112 is opposite to the ejector rod 31;
when the air pressure driven component 12 is separated from the first opening 111, the first opening 111 is communicated with the air outlet hole; blocking communication between the first opening 111 and the air outlet hole when the air pressure driven component 12 is connected with the first opening 111;
one end of the positioning column 4 is embedded in the limit groove 21 of the state display ring 2, and the other end is fixedly embedded in the container joint 3;
when the positioning column 4 is at the first position of the limiting groove 21, the ejector rod 31 is separated from the second opening 112 so as to communicate the second opening 112 with the air inlet hole 32; when the positioning column 4 is at the second position of the limiting groove 21, the ejector rod 31 blocks the second opening 112 to block the communication between the second opening 112 and the air inlet hole 32;
the status display collar 2 is provided with an open status window 22 at the first position and a closed status window 23 at the second position.
The container joint 3 is connected to the valve body 1 by a screw thread, and when the container joint 3 rotates along the screw thread, the container joint can reciprocate along the extending direction of the valve body 1. Because one end of the positioning column 4 is embedded in the limiting groove 21 of the state display ring 2 fixedly connected with the valve body 1, and the other end of the positioning column is fixedly connected with the container connector 3, the rotating angle of the container connector 3 is limited through the limiting groove 21 and the positioning column 4, and the moving range of the container connector 3 along the extending direction of the valve body 1 is limited.
The bottom of the container joint 3 is provided with an air inlet hole 32, the air inlet hole 32 is used for being connected with an air storage container, the air storage container can store high-pressure air, and the air is output to an air supply valve through the air inlet hole 32. For convenience in describing the structure and working procedure of the present application, the following description will be given by taking an example that the air inlet hole 32 is connected to the air container, and those skilled in the art will understand that the air supply valve is detachably connected to the air container. The air supply valve can be connected with different air storage containers, and the specific structure of the air storage containers does not influence the realization of the application.
Wherein, the air inlet hole 32 is sleeved with a rubber ring to prevent the total gas of the gas storage container from leaking from the joint of the air inlet hole 32 and the gas storage container.
Referring to fig. 4, there is shown a block diagram of the air supply valve of the present utility model in an open state; referring to fig. 5, a cross-sectional view of the air supply valve of the present utility model in an open state is shown, referring to fig. 6, showing a partial schematic view at C in fig. 5; when the positioning column 4 is positioned at the first position of the limiting groove 21, the ejector rod 31 in the container connector 3 is separated from the second opening 112 in the gas transmission column 11 arranged in the valve body 1, and the gas inlet hole 32 is communicated with the second opening 112, so that the gas stored in the gas storage container can flow to the first opening 111 through the gas inlet hole 32 and the second opening 112, and the gas supply valve is in an open state; fig. 2 and 3 show a partial schematic view of a portion a in fig. 3 with reference to fig. 7, when the positioning column 4 is in the second position of the limiting groove 21, the ejector rod 31 in the container connector 3 is connected with the second opening 112, the ejector rod 31 blocks the second opening 112, and the second opening 112 is blocked from communicating with the air inlet hole 32, so that the air in the air container cannot flow to the first opening 111, and the air supply valve is in a closed state.
Further, referring to fig. 8, which shows a partial schematic view of fig. 3 at B, the air pressure follower assembly 12 is separated from the first opening 111 when the air supply valve is in a closed state; as shown in fig. 5, when the gas supply valve is in an open state, gas in the gas container is output from the first opening 111 and increases the pressure to which the gas pressure driven assembly is subjected. Referring to fig. 9, which is another sectional view showing the air supply valve of the present utility model in an opened state, referring to fig. 10, which is a partial schematic view at D in fig. 9, when the pressure is greater than a preset threshold value, the air pressure follower assembly partial structure moves in a direction indicated by an arrow in fig. 9, that is, the air pressure follower assembly partial structure moves toward the first opening 111, and the air pressure follower assembly is connected to the first opening 111, and the air pressure follower assembly blocks the first opening 111. When the gas is output from the gas outlet hole to the outside of the gas supply valve, the pressure exerted by the gas applied by the gas pressure driven component is gradually reduced, and when the pressure is smaller than the preset threshold value, the partial structure of the gas pressure driven component moves along the direction indicated by the arrow in fig. 5, that is, the gas pressure driven component moves away from the first opening 111, so as to conduct the first opening 111 and the gas outlet. The air supply valve can continuously output air to the outside through the reciprocating movement of the air pressure driven component.
When the positioning column 4 is at the first position, a user can observe the positioning column 4 through the opening state window 22 to determine that the air supply valve is in the opening state; when the positioning column 4 is in the second position, the user can observe the positioning column 4 through the closed state window 23 to determine that the air supply valve is in the closed state.
In a specific implementation, the opening state window 22 may be circular, and the diameter of the opening state window 22 is similar to the diameter of the positioning column 4; the second position may be composed of a plurality of position points, and the closed state window 23 may be in a bar shape, and the length of the closed state window 23 is greater than the diameter of the positioning column 4.
In the embodiment of the utility model, one end of the positioning column 4 of the air supply valve is embedded in the limit groove 21 of the state display ring 2, the other end of the positioning column is fixedly connected with the container connector 3, and the positioning column 4 moves in the limit groove 21 of the state display ring 2 along with the rotation of the container connector 3. If the air inlet hole 32 of the air supply valve is connected with the air storage container, when the container connector 3 rotates to enable the positioning column 4 to be located at the first position of the limiting groove 21, the air supply valve is in an open state, and air stored in the air storage container can be externally output through the air inlet hole 32 of the container connector 3, the air transmission column 11 in the valve body 1 and the air outlet hole; when the container connector 3 rotates to enable the positioning column 4 to be located at the second position of the limiting groove 21, the air supply valve is in a closed state, air stored in the air storage container cannot be externally output through the air outlet, the opening state window 22 is arranged at the first position, the closing state window 23 is arranged at the second position, the user can determine the state of the air supply valve through the opening state window 22 and the closing state window 23, and convenience in using the air supply valve and recognition rate of the working state of the user are improved.
In one example, a loosening positioning block 24 is provided in the limiting groove 21 near the first position, preventing the positioning column 4 from sliding to the second position without being operated, and avoiding the air supply valve from being switched from the open state to the closed state under the non-artificial condition.
In an alternative embodiment of the present utility model, an open state identifier and a closed state identifier are provided in the state display ring 2;
the open state identifier is adjacent to the open state window 22;
the closed state indicator is adjacent to the closed state window 23.
The open state identifier is an identifier for indicating that the valve body 1 is in the open state, and the closed state identifier is an identifier for indicating that the valve body 1 is in the closed state. The on-state identifier and the off-state identifier may include one or both of a graphic identifier and a text identifier.
The ON-state identification may include, but is not limited to, "ON"; the OFF state identification may include, but is not limited to, "OFF," OFF.
In an alternative embodiment of the present utility model, an air outlet cavity 13 is disposed inside the valve body 1 and is communicated with the air outlet hole;
one end of the gas transmission column 11, where the first opening 111 is provided, is located in the gas outlet cavity 13;
the end of the air pressure driven component 12 opposite to the first opening 111 is located in the air outlet cavity 13.
The gas outlet chamber 13 may store a small amount of gas for output through the gas outlet holes.
In an alternative embodiment of the present utility model, the air pressure driven assembly includes a push disc 121, a push rod 122, a first elastic member 123, a first air delivery channel 124 disposed in the push rod 122, and a cover 125 for accommodating the push disc 121, the push rod 122, the first elastic member 123, and the first air delivery channel 124; one end of the push rod 122 is connected with the push disc 121, and the other end is opposite to the first opening 111; when the push rod 122 is separated from the first opening 111, the first gas delivery channel 124 is communicated with the gas outlet hole; one end of the first elastic member 123 is fixedly arranged, and the other end is connected with the push disc 121; the pushing disc 121 and the inner side of the top of the valve body 1 form a pneumatic chamber; the push plate 121 moves under the action of the gas pressure in the pneumatic chamber and the elastic force provided by the first elastic member 123.
The first elastic member 123 may be a constant pressure spring for applying a pushing force toward the top of the valve body 1 to the push plate 121, which is identical to the above-mentioned preset pushing force. The pushing disc 121 and the valve body 1 form a pneumatic chamber, and when the pushing rod 122 is separated from the first opening 111, the first air conveying channel 124 is communicated with the air outlet hole, at this time, the first opening 111, the air outlet hole and the first air conveying channel 124 are mutually communicated, and air can be output from the first opening 111 and conveyed to the air outlet hole and the pneumatic chamber. As the gas in the pneumatic chamber increases, the gas pressure and the pressure of the gas against the push plate 121 increase, and when the pressure of the gas against the push plate 121 is greater than the elastic force of the first elastic member 123, the push plate 121 pushes the push rod 122 to move toward the first opening 111 as indicated by an arrow in fig. 9, so that the push rod 122 blocks the first opening 111. After the first opening 111 is blocked, the gas in the pneumatic chamber can be output to the outside of the gas supply valve through the first gas transmission channel 124 and the gas outlet hole so that the pressure of the gas is gradually reduced to the pressure of the push plate 121, and when the pressure of the gas to the push plate 121 is smaller than the elastic force of the first elastic member 123, the push rod 122 is away from the first opening 111 as indicated by an arrow in fig. 5. In the above manner, the pushing disc 121 and the pushing rod 122 can move back and forth, so that the gas in the gas storage bottle can be continuously output from the gas outlet hole.
In one example, a first seal ring is provided between the push disc 121 and the valve body 1 to prevent gas in the pneumatic chamber from escaping from the area between the outside of the push disc 121 and the inside of the valve body 1.
In an alternative embodiment of the utility model, the side wall of the valve body 1 is provided with an inflation hole 14, and an inflation channel 15 extending from the inflation hole 14 to the interior of the valve body 1;
the air inlet hole 32 is communicated with the air charging hole 14;
the air charging hole 14 is used for being connected with the air charging male 5.
The gas can be transferred to the gas storage container through the gas-filled male 5 to increase the gas capacity in the gas storage container.
In an alternative embodiment of the present utility model, the push rod 31 is provided with a second air delivery channel 312; the second gas transmission channel 312 is communicated with the gas charging channel 15;
the second gas delivery channel 312 is offset from the second opening 112.
Because the ejector rod 31 is provided with the second gas transmission channel 312 communicated with the gas charging channel 15, and the second gas transmission channel 312 and the second opening 112 are arranged in a staggered manner, when the gas supply valve is in an open state or a closed state, the gas storage container can be charged through the gas charging male head 5. So that when the gas supply valve is in the closed state, gas can flow from the gas charging hole 14 to the gas discharging hole and into the gas storage container as indicated by the arrow in fig. 3.
In an alternative embodiment of the utility model, the container joint 3 is provided with a support member 33;
a second elastic member 311 is connected between the top of the ejector rod 31 and the valve body 1, and the bottom of the ejector rod 31 is connected with the supporting member 33; the support member 33 is provided with a third air delivery channel 331, and the third air delivery channel 331 is used for communicating the second air delivery channel 312 with the air inlet hole 32.
The second elastic member 311 is used to provide an elastic force to the jack 31 toward the air intake hole, so that the jack 31 is provided with an elastic force to separate the jack 31 from the second opening 112 when the air supply valve is in an opened state.
In one example, the second resilient member 311 is a spring.
The supporting member 33 may be a boss structure, a third opening is provided on a top side of the supporting member 33, a fourth opening is provided on a bottom side of the supporting member, and the third opening is communicated with the fourth opening to form a third gas transmission channel 331. The gas can be sequentially transmitted to the first opening 111 through the gas inlet hole 32, the third gas transmission channel 331 and the second gas transmission channel 312, and the gas can be sequentially inflated through the gas inflation hole 14, the second gas transmission channel 312, the third gas transmission channel 331 and the gas inlet hole 32 to inflate the gas storage container.
In an alternative embodiment of the utility model, the valve body 1 is provided with a pressure balancing hole 16;
the pressure balancing hole 16 is used for communicating the outside with the space where the first elastic member 123 inside the valve body 1 is located.
The pressure balance hole 16 can balance the pressure (including the liquid pressure and the gas pressure) of the space where the first elastic component 123 is located and the space outside the valve body 1, so that the situation that the pneumatic chamber is difficult to drive the push rod 122 to move back and forth due to the fact that the pressure of the space outside the valve body 1 is too high is avoided.
In an alternative embodiment of the utility model, the air supply valve further comprises a high pressure relief valve 6 and a low pressure relief valve 7; the air outlet holes comprise one or more high-pressure air outlet holes and one or more low-pressure air outlet holes; the valve body 1 is provided with a high-pressure detection hole and a low-pressure detection hole;
the high-pressure air outlet hole is used for being connected with the high-pressure safety valve 6; the low-pressure vent is used for being connected with the low-pressure safety valve 7;
the high pressure detection hole and the low pressure detection hole are communicated with the second gas transmission channel 312;
the high-pressure detection hole is used for being connected with the high-pressure detection meter 8; the low pressure detection hole is used for being connected with the low pressure detection table 9.
In another alternative embodiment, the high-pressure gas outlet is used for outputting high-pressure gas when the high-pressure gas outlet is communicated with the outside of the valve body 1; when the low-pressure air outlet is communicated with the outside of the valve body 1, the low-pressure air outlet is used for outputting low-pressure air, the high-pressure air refers to the air pressure of the air output by the high-pressure air outlet being larger than the air pressure of the air output by the low-pressure air outlet, the air pressure of the air output by the low-pressure air outlet is smaller than the air pressure of the air output by the high-pressure air outlet, and the specific air pressures of the high-pressure air and the low-pressure air are not limited.
The embodiment of the utility model also discloses a breathing device which comprises a gas storage bottle, a gas suction component and the gas supply valve, wherein the gas storage bottle is connected with a gas inlet of the gas supply valve, and the gas suction component is connected with the gas outlet;
the inhalation component is a mouthpiece or a mask.
In one example, a conduit may be disposed between the mask and the vent.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The above description of the present utility model provides an air supply valve and a breathing apparatus, and specific examples are applied to illustrate the principles and embodiments of the present utility model, and the above examples are only used to help understand the method and core idea of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (10)
1. A gas supply valve, comprising: the valve body, the state display ring fixedly sleeved outside the valve body, the container connector and the positioning column; the valve body is provided with an air outlet, a gas transmission guide column and a gas pressure driven component; the container joint is provided with a push rod; the top of the container connector is sleeved at the bottom of the valve body and is in threaded connection with the valve body, and the bottom of the container connector is provided with an air inlet;
the two ends of the gas transmission guide post are provided with a first opening and a second opening which are communicated; the first opening is opposite to the air pressure driven component, and the second opening is opposite to the ejector rod;
when the air pressure driven component is separated from the first opening, the first opening is communicated with the air outlet hole; when the air pressure driven component is connected with the first opening, the communication between the first opening and the air outlet hole is blocked;
one end of the positioning column is embedded in the limit groove of the state display ring, and the other end of the positioning column is fixedly embedded in the container joint;
when the positioning column is positioned at the first position of the limiting groove, the ejector rod is separated from the second opening so as to communicate the second opening with the air inlet hole; when the positioning column is positioned at the second position of the limiting groove, the ejector rod blocks the second opening so as to block the communication between the second opening and the air inlet hole;
the state display ring is provided with an open state window at the first position and a closed state window at the second position.
2. The air supply valve according to claim 1, wherein an open state identifier and a closed state identifier are provided in the state display ring;
the opening state identifier is adjacent to the opening state window;
the closed state identifier is adjacent to the closed state window.
3. The air supply valve according to claim 1, wherein an air outlet cavity communicated with the air outlet hole is arranged in the valve body;
one end of the gas transmission guide post, which is provided with the first opening, is positioned in the gas outlet cavity;
the end of the air pressure driven component opposite to the first opening is positioned in the air outlet cavity.
4. The air supply valve of claim 1, wherein the air pressure driven assembly comprises a push plate, a push rod, a first elastic member, a first air delivery channel disposed within the push rod;
one end of the push rod is connected with the push disc, and the other end of the push rod is arranged opposite to the first opening;
when the push rod is separated from the first opening, the first gas transmission channel is communicated with the gas outlet hole;
one end of the first elastic component is fixedly arranged, and the other end of the first elastic component is connected with the push disc;
the pushing disc and the inner side of the top of the valve body form a pneumatic cavity;
the pushing disc moves under the action of the air pressure in the pneumatic cavity and the elastic force provided by the first elastic component.
5. The air supply valve according to claim 1, wherein a sidewall of the valve body is provided with an air-filling hole, and an air-filling passage extending from the air-filling hole to an inside of the valve body;
the air inlet hole is communicated with the air charging hole;
the inflation hole is used for being connected with the inflation male.
6. The air supply valve according to claim 5, wherein the ejector pin is provided with a second air delivery passage; the second gas transmission channel is communicated with the gas charging channel;
the second gas transmission channel and the second opening are arranged in a staggered mode.
7. The gas supply valve of claim 6, wherein the container fitting is provided with a support member;
a second elastic part is connected between the top of the ejector rod and the valve body, and the bottom of the ejector rod is connected with the supporting part;
the support part is provided with a third gas transmission channel which is used for communicating the second gas transmission channel with the gas inlet hole.
8. The air supply valve according to claim 4, wherein the valve body is provided with a pressure balance hole;
the pressure balance hole is used for communicating the space where the first elastic component inside the valve body is located.
9. The air supply valve of claim 6, further comprising a high pressure relief valve and a low pressure relief valve; the air outlet holes comprise one or more high-pressure air outlet holes and one or more low-pressure air outlet holes; the valve body is provided with a high-pressure detection hole and a low-pressure detection hole;
the high-pressure air outlet hole is used for being connected with the high-pressure safety valve; the low-pressure air outlet is used for being connected with the low-pressure safety valve;
the high-pressure detection hole and the low-pressure detection hole are communicated with the second gas transmission channel;
the high-pressure detection hole is used for being connected with a high-pressure detection meter; the low pressure detection hole is used for being connected with a low pressure detection meter.
10. A breathing apparatus comprising a gas cylinder, a gas-absorbing member and a gas-supply valve according to any one of claims 1 to 9, said gas cylinder being connected to a gas inlet of said gas-supply valve, said gas-absorbing member being connected to said gas outlet;
the inhalation component is a mouthpiece or a mask.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837504.1U CN219062614U (en) | 2022-10-25 | 2022-10-25 | Air supply valve and breathing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837504.1U CN219062614U (en) | 2022-10-25 | 2022-10-25 | Air supply valve and breathing device |
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| Publication Number | Publication Date |
|---|---|
| CN219062614U true CN219062614U (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222837504.1U Active CN219062614U (en) | 2022-10-25 | 2022-10-25 | Air supply valve and breathing device |
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| Country | Link |
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| CN (1) | CN219062614U (en) |
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