CN212565297U - Liquid oxygen respirator vent valve - Google Patents
Liquid oxygen respirator vent valve Download PDFInfo
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- CN212565297U CN212565297U CN202021279913.9U CN202021279913U CN212565297U CN 212565297 U CN212565297 U CN 212565297U CN 202021279913 U CN202021279913 U CN 202021279913U CN 212565297 U CN212565297 U CN 212565297U
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Abstract
The utility model relates to a liquid oxygen respirator atmospheric valve, which comprises an atmospheric valve body and an atmospheric mechanism; an air inlet channel, an air outlet channel, an air release mechanism mounting hole and an air release channel are arranged in the air release valve body, the air outlet channel and the air release mechanism mounting hole are communicated with the air inlet channel, and the air release channel is communicated with the air release mechanism mounting hole; the emptying mechanism comprises a valve rod, a wrench, a spring and a valve core, the valve rod is installed in an emptying mechanism mounting hole, an emptying valve body extends out of the outer end of the valve rod, the valve core is arranged at the inner end of the valve rod, the valve core is matched with an inner side orifice of the emptying mechanism mounting hole, a spring sleeve is arranged on the outer circle of the valve rod, two ends of the spring sleeve are respectively supported on the valve core and the emptying valve body, the wrench is hinged to the part of the valve rod extending out of the emptying valve body, a first contact surface and a second contact surface are arranged on the wrench, one of the wrench is in contact with the outer wall of the emptying valve body, and the vertical distance from the first contact surface. The utility model discloses the convenient operation of atmospheric valve switch, operating time is short.
Description
Technical Field
The utility model relates to a low temperature stores up oxygen suppliment technical field, in particular to liquid oxygen respirator blow-off valve.
Background
At present, medical, plateau or other oxygen needs are mainly needed, continuous oxygen output is obtained through products such as ward equipment belts, oxygen generators, high-pressure oxygen bottles, portable oxygen tanks and the like, and because oxygen is continuously output when a human body exhales, great waste is caused. When considering outdoor oxygen consumption, equipment such as a high-pressure oxygen cylinder, an oxygen generator and the like is not suitable due to factors such as large volume, heaviness and the like, at present, a portable oxygen tank is mostly adopted, oxygen is stored in a high-pressure gaseous state, and the oxygen can be only absorbed for about 1 hour due to small capacity, so that the outdoor construction or travel requirement for a long time cannot be met. When liquid oxygen is converted into gaseous oxygen, the volume of the liquid oxygen can reach 860 times of the original volume, and compared with a gaseous storage mode, the same container can realize oxygen storage with larger capacity.
When using the low temperature storage tank, need just enable the storage tank and be full of low temperature liquid oxygen with the gaseous evacuation of gaseous phase in the low temperature storage tank when filling low temperature liquid oxygen in to the storage tank, gaseous evacuation need be used the atmospheric valve, present atmospheric valve structure is like the structure that patent number CN207297914U disclosed, including the valve body, be equipped with the inlet in the valve body respectively, liquid outlet and drain, still include the unloading knob subassembly with drain matched with, unloading knob subassembly is including consecutive unloading valve knob, valve rod and the seal ball that is located valve rod tip, the tip of valve rod is equipped with hollow cylindrical cavity, the seal ball is inlayed in the cavity. The emptying valve needs to be screwed by the valve rod to open the emptying port when emptying gas, and has the advantages of long opening and closing operation time, complex operation, high labor intensity and low operation efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of long operation time, complex operation, high labor intensity and the like of opening and closing the emptying valve in the prior art, and provides the emptying valve of the liquid oxygen respirator.
In order to achieve the purpose, the utility model provides a technical scheme does:
the utility model relates to a liquid oxygen respirator atmospheric valve, which comprises an atmospheric valve body and an atmospheric mechanism; the valve body of the emptying valve is internally provided with an air inlet channel, an air outlet channel, an emptying mechanism mounting hole and an emptying channel, the air outlet channel and the emptying mechanism mounting hole are both communicated with the air inlet channel, and the emptying channel is communicated with the emptying mechanism mounting hole; the emptying mechanism comprises a valve rod, a wrench, a spring and a valve core, wherein the valve rod is installed in an emptying mechanism installation hole, an emptying valve body extends out of the outer end of the valve rod, the valve core is arranged at the inner end of the valve rod, the valve core is matched with an inner side orifice of the emptying mechanism installation hole, the spring sleeve is arranged on the outer ring of the valve rod, two ends of the spring are respectively supported on the valve core and the emptying valve body, the wrench is hinged with the part of the valve rod extending out of the emptying valve body through a rotating shaft, a first contact surface and a second contact surface are arranged on the wrench, the vertical distance from the first contact surface to the rotating shaft is smaller than the vertical distance from the second contact surface to the rotating shaft, and the first contact surface or the second contact surface.
Preferably, the atmospheric valve body on be equipped with the fixing base, the outside orifice department at the atmospheric mechanism mounting hole is fixed through threaded connection's mode to the fixing base, the valve rod passes the fixing base, first contact surface or second contact surface and fixing base outer end contact.
Preferably, a step structure is arranged at one end of the valve body of the emptying valve, which is positioned at the inner side of the mounting hole of the emptying mechanism, and a slope surface matched with the step structure is arranged on the outer ring of the valve core.
Preferably, the first contact surface and the second contact surface are both flat surfaces, and a transition section curved surface is arranged between the first contact surface and the second contact surface.
Preferably, the valve body of the emptying valve is also provided with a safety valve, and the safety valve is communicated with the air inlet channel.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model relates to an emptying mechanism is equipped with in the atmospheric valve body, this emptying mechanism includes the valve rod, the spanner, spring and case, the inner of valve rod is equipped with the case, the spring housing is established in the valve rod outer lane, the spanner is articulated with the part that the atmospheric valve body was stretched out to the valve rod through the axis of rotation, be equipped with first contact surface and second contact surface on the spanner, the perpendicular distance of first contact surface to the axis of rotation is less than the perpendicular distance of second contact surface to the axis of rotation, the outer wall contact of first contact surface or second contact surface and atmospheric valve body, pull the spanner during use, make first contact surface or second contact surface contact with the atmospheric valve body in turn, can realize the switch of atmospheric valve, high durability and convenient operation, and short operation time.
Drawings
FIG. 1 is a perspective view of the blow-down valve of the present invention in a closed state;
FIG. 2 is a sectional view of the blow-down valve of the present invention in a closed state;
FIG. 3 is a perspective view of the blow-down valve of the present invention in a blow-down state;
figure 4 is the cross-sectional view of the blow-down valve of the present invention in the blow-down state.
Illustration of the drawings: 1-an emptying valve body, 2-an air inlet channel, 3-an air outlet channel, 4-an emptying mechanism mounting hole, 5-an emptying channel, 6-a fixed seat, 7-a valve rod, 8-a wrench, 9-a spring, 10-a valve core, 11-a rotating shaft, 12-a first contact surface, 13-a second contact surface, 14-a transition section curved surface and 15-a safety valve.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Referring to the attached drawings 1 and 2, the utility model relates to a liquid oxygen respirator vent valve, which comprises a vent valve body 1 and a vent mechanism; be equipped with inlet channel 2, outlet channel 3, unloading mechanism mounting hole 4 and unloading passageway 5 in the atmospheric valve body 1, the vertical setting of inlet channel 2, the equal level setting of outlet channel 3, unloading mechanism mounting hole 4 and unloading passageway 5, outlet channel 3 and unloading mechanism mounting hole 4 all communicate with inlet channel 2, unloading passageway 5 and unloading mechanism mounting hole 4 intercommunication. The emptying valve body 1 is provided with a fixing seat 6, and the fixing seat 6 is fixed at the outer side hole of the emptying mechanism mounting hole 4 in a threaded connection mode.
Referring to the attached drawing 2, the emptying mechanism comprises a valve rod 7, a wrench 8, a spring 9 and a valve core 10, the valve rod 7 is installed in an emptying mechanism installation hole 4, the outer end of the valve rod 7 penetrates through a fixed seat 6 and then extends out of an emptying valve body 1, the inner end of the valve rod 7 is provided with the valve core 10, the valve core 10 is matched with an inner side hole opening of the emptying mechanism installation hole 4, in order to increase the sealing performance of the valve core 10, in the embodiment, a step structure is arranged at one end, located at the inner side of the emptying mechanism installation hole 4, in the emptying valve body 1, and a slope surface matched with the step structure is arranged on the outer ring of the valve; spring 9 cover is established in the valve rod 7 outer lane, the both ends of spring 9 support respectively on fixing base 6 on case 10 and atmospheric valve body 1, spanner 8 is articulated through the part that axis of rotation 11 and valve rod 7 stretched out atmospheric valve body 1, be equipped with first contact surface 12 and second contact surface 13 on spanner 8, first contact surface 12 and second contact surface 13 are the plane, first contact surface 12 is less than the perpendicular distance of second contact surface 13 to axis of rotation 11 to the perpendicular distance of axis of rotation 11 to axis of rotation 12, first contact surface 12 or the contact of second contact surface 13 and atmospheric valve body 1's outer wall contact, this embodiment is the outer end contact with fixing base 6 on the atmospheric valve body 1, for making things convenient for spanner 8 to use axis of rotation 11 to rotate as the axle center, be equipped with transition section curved surface 14 between first contact surface 12 and the second contact surface 13.
For avoiding filling liquid oxygen when liquid oxygen storage tank internal gas pressure is too high, this embodiment still is equipped with relief valve 15 on the atmospheric valve body, relief valve 15 and inlet channel 2 intercommunication, and the relief valve can set up the threshold value, and when liquid oxygen storage tank internal gas pressure exceeded the threshold value, relief valve 15 opened automatically, release oxygen.
Referring to the attached drawings 1 and 2, when the liquid oxygen respirator is in a working state, the first contact surface 12 of the wrench 8 is in contact with the fixed seat 6, at this time, under the action of the spring 9, the valve core 10 blocks the opening of the vent mechanism mounting hole 4, oxygen enters from the air inlet channel 2, flows out from the air outlet channel 3 and is finally supplied to a human body;
referring to fig. 3 and 4, after liquid oxygen in the liquid oxygen respirator is consumed, the liquid oxygen storage tank needs to be filled, at this time, if oxygen is left in the liquid oxygen storage tank, air pressure exists in the liquid oxygen storage tank, the liquid oxygen storage tank is difficult to fill, the liquid oxygen storage tank needs to be emptied through the emptying valve, at this time, the wrench 8 is rotated by 90 degrees, the second contact surface 13 is in contact with the outer end of the fixing seat 6, because the vertical distance from the first contact surface 12 to the rotating shaft 11 is smaller than the vertical distance from the second contact surface 13 to the rotating shaft 11, the valve rod 7 is pulled outwards while the wrench 8 is rotated, the valve core 10 cannot block the inner side orifice of the emptying mechanism mounting hole 4, and oxygen in the storage tank is discharged from the emptying mechanism mounting hole 4 and the emptying channel 5, so that emptying is realized.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The utility model provides a liquid oxygen respirator atmospheric valve which characterized in that: the device comprises a valve body of an emptying valve and an emptying mechanism; the valve body of the emptying valve is internally provided with an air inlet channel, an air outlet channel, an emptying mechanism mounting hole and an emptying channel, the air outlet channel and the emptying mechanism mounting hole are both communicated with the air inlet channel, and the emptying channel is communicated with the emptying mechanism mounting hole; the emptying mechanism comprises a valve rod, a wrench, a spring and a valve core, wherein the valve rod is installed in an emptying mechanism installation hole, an emptying valve body extends out of the outer end of the valve rod, the valve core is arranged at the inner end of the valve rod, the valve core is matched with an inner side orifice of the emptying mechanism installation hole, the spring sleeve is arranged on the outer ring of the valve rod, two ends of the spring are respectively supported on the valve core and the emptying valve body, the wrench is hinged with the part of the valve rod extending out of the emptying valve body through a rotating shaft, a first contact surface and a second contact surface are arranged on the wrench, the vertical distance from the first contact surface to the rotating shaft is smaller than the vertical distance from the second contact surface to the rotating shaft, and the first contact surface or the second contact surface.
2. The liquid oxygen respirator vent valve of claim 1, wherein: the emptying valve body on be equipped with the fixing base, the outside orifice department at the emptying mechanism mounting hole is fixed through threaded connection's mode to the fixing base, the valve rod passes the fixing base, first contact surface or second contact surface and fixing base outer end contact.
3. The liquid oxygen respirator vent valve of claim 1, wherein: the position of the valve body of the emptying valve, which is positioned at one end of the inner side of the mounting hole of the emptying mechanism, is provided with a step structure, and the outer ring of the valve core is provided with a slope matched with the step structure.
4. The liquid oxygen respirator vent valve of claim 1, wherein: the first contact surface and the second contact surface are both planes, and a transition section curved surface is arranged between the first contact surface and the second contact surface.
5. The liquid oxygen respirator vent valve of claim 1, wherein: the valve body of the emptying valve is also provided with a safety valve which is communicated with the air inlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279913.9U CN212565297U (en) | 2020-07-02 | 2020-07-02 | Liquid oxygen respirator vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021279913.9U CN212565297U (en) | 2020-07-02 | 2020-07-02 | Liquid oxygen respirator vent valve |
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| Publication Number | Publication Date |
|---|---|
| CN212565297U true CN212565297U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021279913.9U Active CN212565297U (en) | 2020-07-02 | 2020-07-02 | Liquid oxygen respirator vent valve |
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| CN (1) | CN212565297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833979A (en) * | 2021-09-18 | 2021-12-24 | 西藏友氧健康科技有限公司 | Portable liquid oxygen supply device |
-
2020
- 2020-07-02 CN CN202021279913.9U patent/CN212565297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833979A (en) * | 2021-09-18 | 2021-12-24 | 西藏友氧健康科技有限公司 | Portable liquid oxygen supply device |
| CN113833979B (en) * | 2021-09-18 | 2023-10-20 | 西藏友氧健康科技有限公司 | Portable liquid oxygen supply device |
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