CN219282522U

CN219282522U - Flame-retardant valve and oxygenerator

Info

Publication number: CN219282522U
Application number: CN202320159111.1U
Authority: CN
Inventors: 马晓峰; 方敏敏; 杨耿丽; 冯晓颖
Original assignee: Shenzhen Lepu Intelligent Medical Equipment Co ltd
Current assignee: Shenzhen Lepu Intelligent Medical Equipment Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-30
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to a flame-retardant valve and an oxygenerator, and belongs to the field of flame-retardant equipment of oxygenerators. Comprises a valve body, a valve cover and a valve core; the valve body comprises a main body, an air inlet part and an air outlet part, a first accommodating cavity is arranged in the main body, an air inlet channel is arranged in the air inlet part, an air outlet channel is arranged in the air outlet part, and the air outlet channel is communicated with the air inlet channel through the first accommodating cavity; the valve cover comprises a cover body and a cover cap; the cover body is arranged in the first accommodating cavity, and a second accommodating cavity is arranged in the cover body; the cover cap is arranged on the outer end surface of the main body and seals the opening of the first accommodating cavity; the valve cover is provided with a sealing hole for setting a fixing material; the valve core is arranged in the second accommodating cavity, and an elastic piece is arranged between the valve core and the valve cover; the valve core is fixed with the valve cover through the fixing material, when the valve cover is heated to enable the fixing material to melt, the valve core is separated from the valve cover, the elastic piece drives the valve core to move, and the air outlet channel is closed. The technical problem that a traditional flame-retardant valve cannot timely cut off an oxygen delivery pipeline of an oxygen generator is solved.

Description

Flame-retardant valve and oxygenerator

Technical Field

The utility model relates to the technical field of flame-retardant equipment of oxygenerators, in particular to a flame-retardant valve and an oxygenerator.

Background

When external environment or oxygenerator take place the conflagration, probably burn out by the flame between the oxygen therapy pipeline between traditional oxygenerator and the personnel who use the oxygenerator, the oxygen of oxygenerator output can play combustion-supporting effect to outside flame this moment, if can not seal the oxygen therapy pipeline of oxygenerator at the initial stage that the conflagration takes place, can cause serious result. However, when the traditional flame-retardant valve encounters open fire, the reaction speed is low, the output of oxygen can not be cut off in time, and serious consequences such as fire behavior expansion, casualties and the like can be caused.

Disclosure of Invention

The utility model aims to solve the technical problem that when an oxygenerator fires, the traditional flame-retardant valve cannot cut off oxygen output in time, so that fire is enlarged.

In order to solve the above technical problems, the present utility model provides a flame retardant valve, comprising: the valve body comprises a main body, an air inlet part and an air outlet part, and the air inlet part and the air outlet part are arranged on the main body; the main body is internally provided with a first accommodating cavity, the air inlet part is internally provided with an air inlet channel, and the air inlet channel is communicated with the first accommodating cavity; an air outlet channel is arranged in the air outlet part and is communicated with the air inlet channel through the first accommodating cavity; the valve cover comprises a cover body and a cover cap; the cover body is arranged in the first accommodating cavity and connected with the main body, and a second accommodating cavity is arranged in the cover body; the cap is arranged on the outer end face of the main body and seals the opening of the first accommodating cavity; the valve cover is provided with a sealing hole which communicates the second accommodating cavity with the outside and is used for setting a fixing material; the valve core is arranged in the second accommodating cavity, and an elastic piece is arranged between the valve core and the valve cover; the valve core is fixed with the valve cover through the fixing material, the elastic piece compresses and charges energy, and the air inlet channel and the air outlet channel are communicated with each other; when the valve cover is heated to melt the fixing material, the valve core is separated from the valve cover, and the elastic piece drives the valve core to move so as to seal the air outlet channel.

Optionally, the sealing hole is disposed on the cap of the valve cover and extends into the inner wall of the cover body.

Optionally, the valve core includes core and core head, the core head sets up the core is close to the one end of passageway of giving vent to anger, the core head is the taper, the passageway of giving vent to anger with the junction in first holding chamber with core head shape phase-match makes the core head can with the passageway of giving vent to anger is sealed.

Optionally, the core is provided with a third accommodating cavity along its own axis, an opening of the third accommodating cavity faces the cap, and the third accommodating cavity is used for accommodating the elastic element.

Optionally, the outer wall of the core body is provided with a plurality of annular protrusions, and the annular protrusions are matched with the fixing material to fix the valve core in the second accommodating cavity of the valve cover.

Optionally, the air inlet portion is disposed on a side wall of the main body, the air outlet portion is disposed at an end of the main body, the air outlet channel is coaxial with the first accommodating cavity, and the air inlet channel is perpendicular to the first accommodating cavity.

Optionally, the fixing material is wax.

Optionally, the valve body, the valve cover and the valve core are all brass pieces.

Optionally, an external thread is arranged on the outer side of the cover body, and an internal thread is arranged between the inner walls of the first accommodating cavity of the main body, so that the valve body and the valve cover are in threaded connection and fixed; and the cap is provided with a notch for disassembling the valve cover.

Optionally, the flame retardant valve further comprises a gasket disposed between the valve cover and the valve body.

The application also provides an oxygenerator, comprising: the main body comprises an oxygen generating part and an oxygen therapy pipe, wherein the oxygen therapy pipe is connected with the oxygen generating part and is used for outputting oxygen of the oxygen generating part; in the flame-retardant valve, the air inlet part of the flame-retardant valve is communicated with the oxygen delivery pipe.

According to the technical scheme, the beneficial effects of the utility model are as follows:

the application provides a flame-retardant valve, which comprises a valve body, a valve cover and a valve core; the lid of valve gap sets up in the valve body, and the block setting of valve gap is at the outer terminal surface of valve body. The fixing material is arranged in the second accommodating cavity of the valve cover through the sealing hole on the valve cover, so that the valve core and the valve cover are fixed. The fixed material in this application sets up in the valve gap, and the block of valve gap is located the outside of valve body. When a fire disaster occurs, the valve cover of the outer end face can directly conduct the temperature to the fixing material inside the valve cover, the fixing material is heated and melted, the valve core is separated from the valve cover, and meanwhile, under the driving of the elastic piece, the valve core moves to seal the air outlet channel, so that the oxygen output of the oxygenerator is prevented in time, and the expansion of the fire disaster is prevented rapidly and effectively, so that the aim of flame retardance is achieved.

Drawings

FIG. 1 is a schematic perspective view of a fire-retardant valve;

FIG. 2 is a schematic cross-sectional view of the fire resistant valve of FIG. 1 in a venting state;

FIG. 3 is a schematic cross-sectional view of the fire resistant valve of FIG. 1 in a blocked state;

FIG. 4 is a schematic front view of the fire resistant valve of FIG. 1;

FIG. 5 is a schematic side view of the fire resistant valve of FIG. 1;

FIG. 6 is a cross-sectional view of the valve body of the fire resistant valve of FIG. 1;

FIG. 7 is a cross-sectional view of a valve cover of the fire resistant valve of FIG. 1;

fig. 8 is a cross-sectional view of a valve spool of the fire-resistant valve of fig. 1.

The reference numerals are explained as follows: 100. a flame-retardant valve; 10. a valve body; 11. a main body; 111. a first accommodation chamber; 112. an internal thread; 12. an air inlet part; 121. an air intake passage; 13. an air outlet portion; 131. an air outlet channel; 20. a valve cover; 21. capping; 211. sealing the hole; 212. grooving; 22. a cover body; 221. a second accommodation chamber; 222. an external thread; 30. a valve core; 31. a core print; 32. a core; 321. a third accommodation chamber; 322. an annular protrusion; 40. an elastic member; 50. and a sealing gasket.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that in the embodiments shown in the drawings, indications of directions or positional relationships (such as up, down, left, right, front, rear, etc.) are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be configured and operated in a particular orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the position of these elements changes, the indication of these directions changes accordingly.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 8, the present embodiment provides a flame-retardant valve 100, which includes a valve body 10, a valve cover 20 and a valve core 30. The valve cap 20 is provided on the valve body 10, and the valve core 30 is fixed to the valve cap 20. When a fire occurs, the valve core 30 is separated from the valve cover 20 and moves in the valve body 10 to close and block the valve body 10, so that oxygen in the oxygenerator cannot pass through the flame-retardant valve 100, and the flame-retardant effect is achieved.

Referring to fig. 2 to 3 and 6, the valve body 10 includes a main body 11, an air inlet 12 and an air outlet 13. The inlet portion 12 and the outlet portion 13 are provided on the main body 11. The main body 11 is provided with a first accommodating chamber 111, the air inlet portion 12 is provided with an air inlet passage 121, and the air inlet passage 121 is communicated with the first accommodating chamber 111. An air outlet channel 131 is arranged in the air outlet part 13, and the air outlet channel 131 is communicated with the air inlet channel 121 through the first accommodating cavity 111. So that the gas can enter from the gas inlet channel 121, pass through the first accommodating cavity 111 and then flow out from the gas outlet channel 131.

In the present embodiment, the air inlet portion 12 is provided on the side wall of the main body 11, and the air outlet portion 13 is provided on the end of the main body 11. The air outlet channel 131 is coaxial with the first accommodating chamber 111, and the air inlet channel 121 is perpendicular to the first accommodating chamber 111. The air inlet part 12 is arranged on the side wall of the main body 11, so that the air inlet part is perpendicular to the air outlet part 13, the other end face of the main body 11 can be used for connecting the valve cover 20, the cover cap 21 of the valve cover 20 is positioned on the end face of the main body 11, the heated area is increased, and heat conduction can be conducted more quickly. And the cap 21 is arranged outside the valve body 10, when a fire disaster occurs, the external valve cover 20 can quickly sense open fire and transfer the temperature into the internal fixing material, so that the quick reaction of the flame-retardant valve 100 is realized. .

Referring to fig. 2-3 and 7, the valve cover 20 includes a cover 22 and a cap 21. The cover 22 is disposed in the first receiving chamber 111 and is screw-coupled with the main body 11. A second accommodating chamber 221 is provided in the cover 22 for accommodating the valve core 30. The cap 21 is provided on the outer end surface of the main body 11 and closes the opening of the first accommodation chamber 111 so that the gas introduced into the first accommodation chamber 111 does not leak out from the valve cover 20.

The valve cover 20 is provided with a sealing hole 211, and the sealing hole 211 communicates the second accommodating chamber 221 with the outside for setting the fixing material. A fixing material may be poured from the sealing hole 211 into the second receiving chamber 221 to fix the valve cartridge 30 disposed in the second receiving chamber 221 with the valve cover 20.

Referring to fig. 7, the sealing hole 211 is disposed on the cap 21 of the valve cover 20 and extends into the inner wall of the cover 22. The sealing hole 211 extends inward from the cap 21 of the cap 20 to the middle section of the inner wall of the cap body 22, and communicates the second accommodating chamber 221 with the outside, so that the port of the sealing hole 211 directed to the second accommodating chamber 221 is much larger than the external port of the sealing hole 211. When the fixing material is poured, the speed of pouring the fixing material is increased, and the sealing hole 211 is prevented from being blocked in the pouring process.

In this embodiment, the fixing material for fixing the valve cartridge 30 and sensing the temperature change is wax. The wax may solidify at normal temperature and melt at high temperature. When it solidifies, the valve core 30 and the valve cover 20 are fixed to each other, and when it melts, the valve core 30 and the valve cover 20 are separated. The wax has low cost and better sensing capability of temperature change, and the wax is used as a fixing material, so that the flame-retardant valve 100 can be recycled, and the experiment detection is convenient. Of course, the fixing material may be other heat sensitive materials that can be melted at high temperature, such as plastics, resins, etc.

Referring to fig. 2-3 and fig. 7, the valve core 30 is disposed in the second accommodating cavity 221 of the valve cover 20, and an elastic member 40 is disposed between the valve core 30 and the valve cover 20. In the venting state of the fire resistant valve 100, the elastic member 40 is in a compressed state; in the occluded state, the elastic member 40 is in an extended state.

Specifically, the valve core 30 is fixed to the valve cover 20 by a fixing material, and at this time, the elastic member 40 is in a compressed and charged state, and the air inlet channel 121 and the air outlet channel 131 are mutually communicated. When the valve cover 20 is heated to melt the fixing material therein, the valve core 30 is separated from the valve cover 20, and the elastic member 40 drives the valve core 30 to axially move, so as to close the air outlet channel 131. The blocking of the fire-retardant valve 100 is realized, the output of oxygen is prevented, and the expansion of fire is further prevented.

Referring to fig. 2 and 8, the valve cartridge 30 includes a cartridge body 32 and a cartridge head 31. The core head 31 is disposed at one end of the core body 32 near the air outlet channel 131. The core head 31 is cone-shaped, the connection between the air outlet channel 131 and the first accommodating cavity 111 is matched with the shape of the core head 31, and the core head 31 can seal the air outlet channel 131.

The conical core head 31 is adopted, and the conical connecting port is arranged between the first accommodating cavity 111 and the air outlet channel 131, so that the sealing performance is better when the valve core 30 blocks the air outlet channel 131, and the passage of air can be completely prevented.

Referring to fig. 8, the core 32 is provided with a third accommodating cavity 321 along its own axis, an opening of the third accommodating cavity 321 faces the cap 21, and the third accommodating cavity 321 is used for accommodating the elastic member 40. The elastic member 40 in this embodiment is a spring. The third accommodating chamber 321 accommodates the spring, and on the one hand, can limit the radial deflection of the spring, and on the other hand, can reduce the axial length of the flame retardant valve 100.

Referring to fig. 2 and 8, the outer wall of the core 32 is provided with a plurality of annular protrusions 322, and the annular protrusions 322 cooperate with a fixing material to fix the valve core 30 in the second accommodating cavity 221 of the valve cover 20. The annular protrusion 322 increases friction with the fixing material, preventing the fire-retardant valve 100 from shaking, so that the valve core 30 is separated from the valve cover 20, and the air outlet channel 131 is blocked.

Referring to fig. 6 and 7, the inner wall of the first accommodating chamber 111 of the main body 11 is provided with an internal thread 112, and the outer wall of the valve body 10 of the valve cover 20 is provided with an external thread 222. The valve cover 20 is connected with the main body 11 through threads, so that the valve cover 20 can be detachably connected. A notch 212 is further provided on the cap 21 of the valve cover 20, and the notch 212 can be matched with a screwdriver to screw the valve cover 20, so that the valve cover 20 can be conveniently installed and disassembled.

In this embodiment, the valve body 10, the bonnet 20, and the valve core 30 are all brass pieces. Brass has good heat conducting property, and can quickly conduct heat to the fixing material in the valve cover 20, so that the fixing material is melted, and the reaction speed of the flame-retardant valve 100 is increased.

In the present embodiment, the flame retardant valve 100 further includes a gasket 50, and the gasket 50 is disposed between the valve cover 20 and the valve body 10. The gasket 50 can make the cap 21 of the cap 20 and the end surface of the body 11 more tightly combined, prevents gas from leaking out from the junction of the cap 20, and increases safety.

The embodiment also provides an oxygenerator, which comprises a main body and the flame-retardant valve 100. The main body comprises an oxygen generating part and an oxygen therapy pipe, wherein the oxygen therapy pipe is connected with the oxygen generating part and is used for outputting oxygen of the oxygen generating part. The intake portion 12 of the fire-resistant valve 100 communicates with an oxygen delivery tube. The air outlet portion 13 of the fire-retardant valve 100 is used for being connected with an external pipeline to deliver oxygen to a human body.

The working and use process of the flame retardant valve 100 of the present embodiment is as follows:

the elastic member 40 is first installed into the third receiving chamber 321 of the valve body 30, and then the valve body 30 is inserted into the second receiving chamber 221 of the valve cover 20, and the valve body 30 is pressed, so that the elastic member 40 between the valve body 30 and the valve cover 20 is in a compressed state. At this time, a fixing material is poured from the seal hole 211 to a connection gap between the valve cover 20 and the valve body 30, so that the valve body 30 is fixed in the valve cover 20. The cap 20 is then screwed into the first receiving chamber 111 of the body 11.

The air inlet part 12 of the valve body 10 is connected with an oxygen delivery pipe of the oxygen generator, and then an external pipeline is communicated with the air outlet part 13 of the valve body 10 to deliver oxygen to a human body. Oxygen is caused to enter from the inlet passage 121 and to flow out from the outlet passage 131.

When fire occurs in the outside or the oxygenerator, the cap 21 and the valve body 10 of the valve cover 20 conduct temperature to the fixing material, so that the fixing material is melted, at this time, the valve core 30 and the valve cover 20 are separated from each other, the elastic member 40 recovers elastic deformation, so as to push the valve core 30 to move towards the direction of the air outlet channel 131, block the air outlet channel 131, and cut off oxygen transmission in the flame-retardant valve 100, thereby achieving the flame-retardant effect.

The fixing material in this embodiment is poured into the valve cover 20, and the cap 21 of the valve cover 20 is located outside the valve body 10, when a fire disaster occurs, the outer valve cover 20 can rapidly react, and directly conduct the temperature to the fixing material inside the valve cover 20, so that the fixing material is melted, at this time, the valve core 30 is separated from the valve cover 20, and the air outlet channel 131 is sealed under the driving of the elastic member 40, so as to prevent the oxygen output of the oxygenerator; rapidly prevents the expansion of fire and achieves the aim of flame retardance.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A fire resistant valve comprising:

the valve body comprises a main body, an air inlet part and an air outlet part, and the air inlet part and the air outlet part are arranged on the main body; the main body is internally provided with a first accommodating cavity, the air inlet part is internally provided with an air inlet channel, and the air inlet channel is communicated with the first accommodating cavity; an air outlet channel is arranged in the air outlet part and is communicated with the air inlet channel through the first accommodating cavity;

the valve cover comprises a cover body and a cover cap; the cover body is arranged in the first accommodating cavity and connected with the main body, and a second accommodating cavity is arranged in the cover body; the cap is arranged on the outer end face of the main body and seals the opening of the first accommodating cavity; the valve cover is provided with a sealing hole which communicates the second accommodating cavity with the outside and is used for setting a fixing material;

the valve core is arranged in the second accommodating cavity, and an elastic piece is arranged between the valve core and the valve cover; the valve core is fixed with the valve cover through the fixing material, the elastic piece compresses and charges energy, and the air inlet channel and the air outlet channel are communicated with each other; when the valve cover is heated to melt the fixing material, the valve core is separated from the valve cover, and the elastic piece drives the valve core to move so as to seal the air outlet channel.

2. The fire resistant valve of claim 1 wherein said sealing aperture is provided on a cap of said valve cover and extends into an inner wall of said cover body.

3. The fire resistant valve of claim 1 wherein said valve core comprises a core body and a core head, said core head being disposed at an end of said core body adjacent said air outlet passage, said core head being tapered, a junction of said air outlet passage and said first receiving chamber being shaped to match said core head, such that said core head seals said air outlet passage.

4. A fire-resistant valve according to claim 3, wherein the core is provided with a third housing chamber along its own axis, the opening of the third housing chamber facing the cap, the third housing chamber being adapted to house the elastic member.

5. A fire resistant valve according to claim 3, wherein the outer wall of the core is provided with a plurality of annular protrusions which cooperate with the securing material to secure the valve element within the second receiving cavity of the valve cover.

6. The fire resistant valve of claim 1 wherein said air inlet is disposed on a side wall of said body, said air outlet is disposed on an end of said body, said air outlet passage is coaxial with said first receiving chamber, and said air inlet passage is perpendicular to said first receiving chamber.

7. The flame retardant valve of claim 1, wherein the securing material is wax.

8. The fire resistant valve of claim 1 wherein said valve body, valve cover and valve core are brass pieces.

9. The fire-retardant valve according to claim 1, wherein an external thread is arranged on the outer side of the cover body, and an internal thread is arranged between the inner walls of the first accommodating cavity of the main body, so that the valve body is fixedly connected with the valve cover; and the cap is provided with a notch for disassembling the valve cover.

10. The fire resistant valve of claim 1 further comprising a gasket disposed between the valve cover and the valve body.

11. An oxygenerator, comprising:

the main body comprises an oxygen generating part and an oxygen therapy pipe, wherein the oxygen therapy pipe is connected with the oxygen generating part and is used for outputting oxygen of the oxygen generating part;

the fire resistant valve of any one of claims 1-10, the air intake of the fire resistant valve being in communication with the oxygen transfer tube.