CN220558374U

CN220558374U - Fireproof device and ventilation treatment equipment

Info

Publication number: CN220558374U
Application number: CN202321658850.1U
Authority: CN
Inventors: 刘振; 周明钊; 王亚杰; 林立宝; 庄志
Original assignee: BMC Tianjin Medical Co Ltd
Current assignee: BMC Tianjin Medical Co Ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2024-03-08
Anticipated expiration: 2033-06-27

Abstract

The utility model discloses a fireproof device and ventilation treatment equipment, which comprises a shell, a first valve body, a second valve body and an elastic piece, wherein a fluid channel is formed in the shell, a first opening and a second opening are respectively formed in two ends of the shell, and the first opening and the second opening are communicated with the fluid channel; the first valve body and the second valve body are both positioned in the fluid channel, the first valve body and the second valve body are distributed at intervals along the direction from the first opening to the second opening, a first limiting rib is fixed on the hole wall of the first opening, a second limiting rib is fixed on the hole wall of the second opening, the first end of the first valve body is abutted with the first limiting rib, the first end of the second valve body is abutted with the second limiting rib, the elastic piece is positioned between the first valve body and the second valve body, two ends of the elastic piece are respectively abutted with the second end of the first valve body and the second end of the second valve body, the elastic piece is in a compressed state, and gaps for gas circulation are reserved between the periphery of the first valve body and the periphery of the second valve body and the channel wall of the fluid channel.

Description

Fireproof device and ventilation treatment equipment

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a fireproof device and ventilation treatment equipment.

Background

Currently, oxygen therapy is widely used in clinical treatment and hospital rescue, and when oxygen inhaled by a patient cannot meet the needs, external oxygen supply is generally required, and external devices such as an oxygen therapy device can be used to supply oxygen to the patient by an invasive or non-invasive method. In addition to the scenes of supervision and management of medical staff in the profession such as clinical treatment and hospital rescue, oxygen therapy is also widely applied to the home scene, and patients can perform oxygen therapy at home.

In the related art, an external instrument generates oxygen and delivers the oxygen to an oxygen supply terminal through an oxygen tube so as to supply the oxygen to a patient. The oxygen concentration of oxygen therapy appearance output is higher, and oxygen has combustion-supporting characteristic, in case because the patient carelessly ignites the oxygen pipe that is outputting oxygen, because there is continuous high concentration oxygen to flow in the oxygen pipe, so flame will gradually burn to the fuselage along with the oxygen pipe, causes the intensity of a fire to spread easily, finally ignites the oxygenerator and takes place serious conflagration. Particularly, when oxygen therapy is performed at home, if a fire disaster occurs, the fire disaster can not be found in time because the medical staff is not supervised, and the fire disaster is more easily deteriorated.

Disclosure of Invention

The embodiment of the utility model aims to provide a fireproof device and ventilation treatment equipment, which can solve the problems that if flame appears in the process of using an oxygen therapy instrument in the related technology, the flame gradually burns to a machine body along with an oxygen pipe, so that the fire is easy to spread, and finally, an oxygenerator is ignited to generate serious fire.

In order to solve the technical problems, the utility model is realized as follows:

in a first aspect, embodiments of the present utility model provide a fire protection device comprising: the oxygen therapy device comprises a shell, a first valve body, a second valve body and an elastic piece, wherein a fluid channel is arranged in the shell, a first opening is formed in one end of the shell, a second opening is formed in the second end of the shell, the first opening and the second opening are communicated with the fluid channel, and the first opening and the second opening are used for being communicated with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end;

the first valve body and the second valve body are both positioned in the fluid channel, the first valve body and the second valve body are distributed at intervals along the direction from the first opening to the second opening, a first limit rib is fixed on the hole wall of the first opening, a second limit rib is fixed on the hole wall of the second opening, the first end of the first valve body is abutted against the first limit rib, the first end of the second valve body is abutted against the second limit rib, the elastic piece is positioned between the first valve body and the second valve body, two ends of the elastic piece are abutted against the second end of the first valve body and the second end of the second valve body respectively, the elastic piece is in a compressed state, and gaps for air supply circulation are formed between the periphery of the first valve body and the periphery of the second valve body and the channel wall of the fluid channel;

When the first limiting rib is in a molten state, the elastic piece stretches, the first valve body is located at a first position, and the first valve body is in sealing connection with the channel wall of the fluid channel so as to block the fluid channel; and under the condition that the second limiting rib is in a molten state, the elastic piece stretches, the second valve body is positioned at a second position, and the second valve body is in sealing connection with the channel wall of the fluid channel so as to block the fluid channel.

Optionally, the first valve body includes a first installation rod and a first installation seat, the axial direction of the first installation rod is consistent with the expansion direction of the elastic piece, one end of the first installation rod is connected with the first installation seat, the other end of the first installation rod is abutted with the first limit rib, and one end of the elastic piece is abutted with the first installation seat;

the second valve body comprises a second mounting rod and a second mounting seat, the axial direction of the second mounting rod is consistent with the expansion direction of the elastic piece, one end of the second mounting rod is connected with the second mounting seat, the other end of the second mounting rod is abutted with the second limiting rib, and the other end of the elastic piece is abutted with the second mounting seat;

Under the condition that the first limiting rib is in a molten state, the channel walls of the fluid channels of the first mounting seat are connected in a sealing mode;

and under the condition that the second limiting rib is in a molten state, the channel walls of the fluid channels of the second mounting seat are connected in a sealing mode.

Optionally, the one end that first mount pad was kept away from first installation pole is provided with first installation cavity, the one end that second mount pad was kept away from second installation pole is provided with the second installation cavity, first installation cavity with the position in second installation cavity is relative, the one end of elastic component with the chamber bottom butt in first installation cavity, the other end of elastic component with the chamber bottom butt in second installation cavity.

Optionally, the bottom of the first installation cavity is connected with a first guide rod, and/or the bottom of the second installation cavity is connected with a second guide rod, the elastic piece is sleeved on the first guide rod and/or the second guide rod, and the first guide rod and the second guide rod are used for guiding the expansion and contraction of the elastic piece.

Optionally, a first positioning part is arranged at the periphery of the first mounting seat, a first positioning groove is arranged on the inner wall of the fluid channel, the extending direction of the first positioning groove is consistent with the extending direction of the elastic piece, the first positioning part is embedded in the first positioning groove, and the first positioning groove is used for limiting the moving direction of the first mounting seat under the condition that the first limiting rib is in a molten state;

And/or, the circumference of second mount pad is provided with the second constant head tank, set up the second constant head tank on the inner wall of fluid channel, the extending direction of second constant head tank with the flexible direction of elastic component is unanimous, the second constant head tank is inlayed and is located the second constant head tank, the second constant head tank is used for under the condition that the second spacing muscle is in the molten state, is used for spacing the direction of movement of second mount pad.

Optionally, a first mounting groove is formed in the inner wall of the fluid channel, the first mounting groove extends along the circumferential direction of the fluid channel and surrounds the fluid channel, a first sealing element is arranged in the first mounting groove, a part of the first sealing element extends out of the first mounting groove, the first sealing element is opposite to the first valve body, and the first sealing element is used for abutting against the first valve body when the first limiting rib is in a molten state so as to enable the first valve body to be in sealing connection with the channel wall of the fluid channel;

and/or a second mounting groove is formed in the inner wall of the fluid channel, the second mounting groove extends along the circumferential direction of the fluid channel and surrounds the fluid channel, a second sealing element is arranged in the second mounting groove, a part of the second sealing element extends out of the second mounting groove, the second sealing element is opposite to the second valve body, and the second sealing element is used for abutting against the second valve body under the condition that the second limiting rib is in a molten state so as to enable the second valve body to be in sealing connection with the channel wall of the fluid channel.

Optionally, a first blocking table and a second blocking table are arranged on a channel wall of the fluid channel along a circumferential direction of the fluid channel, the first blocking table and the second blocking table are distributed at intervals along a direction from the first opening to the second opening, the first valve body and the second valve body are located between the first blocking table and the second blocking table, and in the direction from the first opening to the second opening, a projection of the first blocking table and a projection of the first valve body have an overlapping portion, and a projection of the second blocking table and a projection of the second valve body have an overlapping portion;

the first blocking table has a first surface facing the first valve body in a direction from the first opening to the second opening, the first mounting groove is provided on the first surface, the first mounting groove extends along a circumferential direction of the fluid passage, and a projection of the first mounting groove is located inside a projection of the first valve body in the direction from the first opening to the second opening;

and/or the second blocking table is provided with a second surface facing the second valve body in the direction from the first opening to the second opening, the second mounting groove is arranged on the second surface, the second mounting groove extends along the circumferential direction of the fluid channel, and in the direction from the first opening to the second opening, the projection of the second mounting groove is positioned inside the projection of the second valve body.

Optionally, the casing includes first sub-casing and second sub-casing, first sub-casing with second sub-casing sets up relatively, first sub-casing inside is provided with first passageway, be provided with the second passageway in the second sub-casing, first sub-casing with second sub-casing is connected, just first passageway with second passageway intercommunication forms fluid channel, first valve body sets up in the first sub-casing, the second valve body sets up in the second sub-casing.

Optionally, a first connector is connected to the first opening, and the first connector is communicated with the fluid channel;

the second opening is connected with a second joint, and the second joint is communicated with the fluid channel;

the first connector and the second connector are used for being communicated with a pipeline of the oxygen therapy instrument or a pipeline of the oxygen supply end.

In a second aspect, an embodiment of the present utility model provides a ventilation therapeutic apparatus, specifically including an oxygen therapeutic apparatus, an oxygen supply end, and a fireproof device according to any one of the first aspect; the first opening is connected with the oxygen therapy instrument, and the second opening is connected with the oxygen supply end; or, the second opening is connected with the oxygen therapy instrument, and the first opening is connected with the oxygen supply end.

In the embodiment of the utility model, the fireproof device comprises a shell, a first valve body, a second valve body and an elastic piece, wherein a fluid channel is formed in the shell, a first opening is formed in one end of the shell, a second opening is formed in the second end of the shell, and the first opening and the second opening are communicated with the fluid channel, so that the first opening, the fluid channel and the second opening can form a channel for enabling gas to flow. The first opening and the second opening are used for being communicated with a pipeline of the oxygen therapy instrument or a pipeline of the oxygen supply end, so that one end of the fluid channel can be connected with the pipeline of the oxygen therapy instrument through the first opening and the second opening, the other end of the fluid channel is connected with the pipeline of the oxygen supply end, and the oxygen therapy instrument can convey oxygen to a patient through the oxygen supply end. The first limiting ribs are fixed on the hole wall of the first hole, the second limiting ribs are fixed on the hole wall of the second hole, the first end of the first valve body is abutted against the first limiting ribs, the second end of the second valve body is abutted against the second limiting ribs, the elastic pieces are connected between the second end of the first valve body and the second end of the second valve body, so that the first valve body and the second valve body are distributed at intervals along the direction from the first hole to the second hole, and because the elastic pieces are in a compressed state, the extending direction of the elastic pieces is consistent with the extending direction of the fluid channel, the elastic pieces can apply force to the first valve body and the second valve body, so that the first valve body has a trend of moving towards the first hole, the second valve body has a trend of moving towards the second hole, and at the moment, the first limiting ribs can block the first valve body, and the second limiting ribs can block the second valve body. Since the gaps for gas circulation are provided between the peripheral portion of the first valve body and the peripheral portion of the second valve body and the channel wall of the fluid channel, gas can flow through the gaps during normal use, so that the oxygen therapy apparatus can be used normally. Under the condition that the first limiting rib is in a molten state, the first limiting rib loses the blocking effect on the first valve body, at the moment, the elastic piece stretches, namely the elastic piece 40 can release elastic potential energy, the first valve body moves to a first position in the direction of the first opening hole under the elastic action of the elastic piece, and the first valve body is in sealing connection with the channel wall of the fluid channel, so that the fluid channel can be blocked, and oxygen is prevented from continuously flowing in the fluid channel; under the condition that the second limiting ribs are in a molten state, the second limiting ribs lose blocking effect on the second valve body, at the moment, the elastic piece stretches, namely the elastic piece can release elastic potential energy, the second valve body moves to a second position in the direction of the second opening hole under the elastic effect of the elastic piece, the second valve body is in sealing connection with the channel wall of the fluid channel, and therefore the fluid channel can be blocked, and oxygen is prevented from continuing to flow in the fluid channel.

That is, in the embodiment of the utility model, if flame is caused by improper operation during oxygen therapy, the first limit rib or the second limit rib burns to be in a molten state, and at this time, the elastic piece arranged between the first valve body and the second valve body can push the first valve body or the second valve body to move, so that the first valve body or the second valve body is in sealing connection with the fluid channel, and the fluid channel can be blocked. The fire protection device can prevent oxygen from continuously flowing in the fluid channel, so that flame is prevented from gradually burning towards the machine body along with the oxygen pipe, fire spreading is easy to occur, and the problem that serious fire occurs when the oxygen generator is finally ignited is solved.

Drawings

Fig. 1 is a cross-sectional view of a fire protection device according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a first stop rib in a molten state in a fireproof device according to an embodiment of the present utility model;

fig. 3 is a side view of a fire protection arrangement provided by an embodiment of the utility model;

fig. 4 is a schematic view of a fire protection device according to an embodiment of the present utility model;

fig. 5 is a cross-sectional view of another fire protection arrangement provided by an embodiment of the present utility model;

FIG. 6 is a block diagram of a first valve body provided by an embodiment of the present utility model;

FIG. 7 is one of the side views of the first valve body provided by the embodiment of the present utility model;

FIG. 8 is a second side view of the first valve body according to the embodiment of the present utility model.

Reference numerals illustrate:

100: a fire protection device; 10: a housing; 20: a first valve body; 30: a second valve body; 40: an elastic member; 11: a fluid channel; 12: the first limit rib; 13: the second limit rib; 21: a first mounting bar; 22: a first mount; 23: a first mounting cavity; 24: a first guide bar; 25: a first positioning portion; 31: a second mounting bar; 32: a second mounting base; 33: a second mounting cavity; 34: a second guide bar; 35: a second positioning portion; 14: a first positioning groove; 15: a second positioning groove; 16: a first mounting groove; 17: a first seal; 18: a second mounting groove; 19: a second seal; 111: a first blocking table; 112: a second barrier; 1111: a first surface; 1121: a second surface; 122: a first sub-housing; 123: a first channel; 124: a second sub-housing; 125: a second channel; 51: a first joint; 52: a second joint; 26: and a guide shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The fire protection device 100 and the ventilation therapy apparatus provided by the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

As shown in fig. 1 to 8, the fire protection device 100 includes: the oxygen therapy device comprises a shell 10, a first valve body 20, a second valve body 30 and an elastic piece 40, wherein a fluid channel 11 is formed in the shell 10, a first opening is formed in one end of the shell 10, a second opening is formed in the second end of the shell 10, the first opening and the second opening are communicated with the fluid channel 11, and the first opening and the second opening are used for being communicated with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end; the first valve body 20 and the second valve body 30 are both positioned in the fluid channel 11, the first valve body 20 and the second valve body 30 are distributed at intervals along the direction from the first opening to the second opening, a first limiting rib 12 is fixed on the hole wall of the first opening, a second limiting rib 13 is fixed on the hole wall of the second opening, the first end of the first valve body 20 is abutted against the first limiting rib 12, the first end of the second valve body 30 is abutted against the second limiting rib 13, an elastic piece 40 is positioned between the first valve body 20 and the second valve body 30, two ends of the elastic piece 40 are respectively abutted against the second end of the first valve body 20 and the second end of the second valve body 30, the elastic piece 40 is in a compressed state, and gaps for gas circulation are formed between the periphery of the first valve body 20 and the periphery of the second valve body 30 and the channel wall of the fluid channel 11; under the condition that the first limiting rib 12 is in a molten state, the elastic piece 40 stretches, the first valve body 20 is located at the first position, and the first valve body 20 is in sealing connection with the channel wall of the fluid channel 11 so as to block the fluid channel 11; in the state that the second stopper rib 13 is in the molten state, the elastic member 40 is elongated, the second valve body 30 is positioned at the second position, and the second valve body 30 is sealingly connected with the channel wall of the fluid channel 11 to block the fluid channel 11.

In the embodiment of the present utility model, the fire protection device 100 includes a housing 10, a first valve body 20, a second valve body 30, and an elastic member 40, wherein the housing 10 has a fluid channel 11 therein, one end of the housing 10 has a first opening, and the second end of the housing 10 has a second opening, and the first opening, the fluid channel 11, and the second opening may form a channel for allowing gas to circulate because the first opening and the second opening are both in communication with the fluid channel 11. Wherein, the first opening and the second opening are used for communicating with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end, so that one end of the fluid channel 11 can be connected with the pipeline of the oxygen therapy instrument through the first opening and the second opening, the other end of the fluid channel 11 is connected with the pipeline of the oxygen supply end, and the oxygen therapy instrument can deliver oxygen to a patient through the oxygen supply end. The hole wall of the first hole is fixedly provided with a first limiting rib 12, the hole wall of the second hole is fixedly provided with a second limiting rib 13, the first end of the first valve body 20 is abutted against the first limiting rib 12, the second end of the second valve body 30 is abutted against the second limiting rib 13, an elastic piece 40 is connected between the second end of the first valve body 20 and the second end of the second valve body 30, so that the first valve body 20 and the second valve body 30 can be distributed at intervals along the direction from the first hole to the second hole, and because the elastic piece 40 is in a compressed state, the expansion direction of the elastic piece 40 is consistent with the extension direction of the fluid channel 11, the elastic piece 40 can apply force to the first valve body 20 and the second valve body 30, so that the first valve body 20 has a trend of moving towards the direction of the first hole, the second valve body 30 has a trend of moving towards the second hole, and at the moment, the first limiting rib 12 can block the first valve body 20, and the second limiting rib 13 can block the second valve body 30. Since gaps through which gas flows are provided between the peripheral portion of the first valve body 20 and the peripheral portion of the second valve body 30 and the channel wall of the fluid channel 11, gas can flow through the gaps during normal use, so that the oxygen therapy apparatus can be used normally. When the first limiting rib 12 is in a molten state after being burnt by flame, the first limiting rib 12 loses the blocking effect on the first valve body 20, at the moment, the elastic piece 40 stretches, which is equivalent to the elastic piece 40 releasing elastic potential energy, and the first valve body 20 moves to a first position in the direction of the first opening hole under the elastic action of the elastic piece 40, so that the first valve body 20 is in sealing connection with the channel wall of the fluid channel 11, thereby blocking the fluid channel 11 and preventing oxygen from continuing to flow in the fluid channel 11; under the condition that the second limiting rib 13 is in a molten state under the condition of being burnt by flame, the second limiting rib 13 loses the blocking effect on the second valve body 30, at the moment, the elastic piece 40 stretches, the elastic piece 40 releases elastic potential energy, and the second valve body 30 moves to a second position in the direction of the second opening hole under the elastic action of the elastic piece 40, so that the second valve body 30 is in sealing connection with the channel wall of the fluid channel 11, the fluid channel 11 can be blocked, and oxygen is prevented from continuing to flow in the fluid channel 11.

That is, in the embodiment of the present utility model, if flame is caused by improper operation during oxygen therapy, the first limiting rib 12 or the second limiting rib 13 burns and is in a molten state, and at this time, the elastic member 40 disposed between the first valve body 20 and the second valve body 30 can push the first valve body 20 or the second valve body 30 to move, so that the first valve body 20 or the second valve body 30 is in sealing connection with the fluid channel 11, and thus the fluid channel 11 can be blocked. The fire protection device 100 can prevent oxygen from continuing to flow in the fluid channel 11, so that flame is prevented from gradually burning along with the oxygen pipe to the machine body, fire spread is easily caused, and the problem of serious fire disaster caused by finally igniting the oxygen generator is solved.

When the first limiting rib 12 is in a molten state when being burnt by flame, the elastic element 40 stretches, specifically, the elastic element 40 stretches from a compressed state to a natural state, and at this time, the elastic element 40 releases all elastic potential energy of the elastic element 40, and the elastic element 40 is in an original length; alternatively, a part of elastic potential energy may be released from the elastic member 40, where the elastic member 40 is stretched compared to the elastic member 40 in the initial state, but where the elastic member 40 is still in the compressed state. Similarly, when the second limiting rib 13 is in a molten state when being burned by flame, the elongation of the elastic member 40 may be in the above two states, and the embodiments of the present utility model are not described herein again. In the above description, the initial state is a state when both the first stopper rib 12 and the second stopper rib 13 are in a non-molten state.

It should be noted that, the elastic member 40 is disposed in the fluid channel 11, and the elastic member 40 may be a metal spring or a metal spring plate such as iron, copper, alloy, or a soft rubber such as silica gel or rubber, which can store elastic potential energy. The elastic member 40 can store elastic potential energy and push the first valve body 20 or the second valve body 30 when a fire occurs, block the three-dimensional channel, block the passage of oxygen, and thus achieve the effect of preventing the spread of the fire.

It should be further noted that, the first limiting rib 12 and the second limiting rib 13 may be fusible members, and may be made of a material with a lower melting point, for example, polyoxymethylene (POM), ethylene-vinyl acetate copolymer (Ethylene Vinyl Acetate, EVA) ethylene propylene diene monomer (Ethylene Propylene Diene Monomer, EPDM), etc., and the specific materials of the first limiting rib 12 and the second limiting rib 13 are not limited herein. Therefore, when the oxygen therapy apparatus is normally used by a patient, the first limiting rib 12 and the second limiting rib 13 are in a non-melting state, at the moment, the first limiting rib 12 and the second limiting rib 13 are not combusted, and are in the non-melting state, the first limiting rib 12 supports the first valve body 20, the second limiting rib 13 supports the second valve body 30, the elastic piece 40 is positioned in the compression device, at the moment, the fluid channel 11 is not blocked, and oxygen can normally circulate; when the patient uses the oxygen therapy apparatus and flames are generated, the first limiting rib 12 or the second limiting rib 13 is melted, at the moment, the first limiting rib 12 or the second limiting rib 13 is in a molten state, the elastic piece 40 is restored to an initial state, at the moment, the fluid channel 11 is blocked, oxygen circulation is prevented, and fire is avoided.

In addition, in the embodiment of the present utility model, the first opening or the second opening is connected to the pipeline at the oxygen supply end, and is closer to the oxygen supply end used by the user, and in the case of connecting the first opening to the pipeline at the oxygen supply end, since the first limiting rib 12 is disposed at the hole wall of the first opening, if the patient carelessly ignites the pipeline at the oxygen supply end, the flame can reach the first limiting rib 12 faster, so that the first limiting rib 12 is broken faster, the fluid channel 11 is blocked faster, the flow of oxygen can be blocked in time, the risk of fire spreading caused by untimely triggering is reduced, and the safety factor of the fire protection device 100 is further improved. Under the condition that the second opening is connected with the pipeline of the oxygen supply end, as the second limiting rib 13 is arranged at the hole wall of the second opening, if a patient carelessly ignites the pipeline of the oxygen supply end, the flame can reach the second limiting rib 13 faster, so that the second limiting rib 13 is broken faster, the flow channel 11 is blocked faster, the oxygen flow can be blocked in time, the risk of fire spreading caused by untimely triggering is reduced, and the safety coefficient of the fireproof device 100 is further improved.

In order to enable the fire protection device 100 to normally move when the temperature is high and the fire disaster tends to occur, the fluid channel 11 is blocked, and the first valve body 20, the second valve body 30, the elastic member 40 and the casing 10 can be all components with high melting points and are not easy to burn. Further, since the fire protection device 100 is used in an oxygen-enriched environment, the first valve body 20, the second valve body 30, the elastic member 40, the housing 10, and the like may be members that are not easily oxidized.

In addition, since the first limiting ribs 12 and the second limiting ribs 13 are distributed at two ends of the fireproof device 100, when the fireproof device 100 is installed, the first opening can be installed on a pipeline at the oxygen supply end, and the second opening can also be installed on a pipeline at the oxygen supply end, so that the installation is convenient, and the problem of distinguishing the front side and the back side of the fireproof device 100 is avoided.

In order to avoid the influence of the first limiting rib 12 on the oxygen circulation, the first limiting rib 12 may be in a strip shape, or may be in other shapes that do not affect the ventilation, for example, in a zigzag shape, a semicircular shape, or the like, two ends of the first limiting rib 12 are respectively connected to the hole wall of the first hole, and the oxygen may flow through two sides of the first limiting rib 12 to the inside of the fluid channel 11, as shown in fig. 3. Similarly, the second limiting rib 13 is also in a strip shape, and reference may be made to the above description of the first limiting rib 12, which is not repeated herein in the embodiment of the present utility model.

In addition, in some embodiments, as shown in fig. 1, 2 and 6, the first valve body 20 may include a first mounting rod 21 and a first mounting seat 22, where an axial direction of the first mounting rod 21 is consistent with a telescopic direction of the elastic member 40, one end of the first mounting rod 21 is connected to the first mounting seat 22, the other end of the first mounting rod 21 abuts against the first limiting rib 12, and one end of the elastic member 40 abuts against the first mounting seat 22; the second valve body 30 comprises a second mounting rod 31 and a second mounting seat 32, the axial direction of the second mounting rod 31 is consistent with the expansion and contraction direction of the elastic piece 40, one end of the second mounting rod 31 is connected with the second mounting seat 32, the other end of the second mounting rod 31 is abutted with the second limiting rib 13, and the other end of the elastic piece 40 is abutted with the second mounting seat 32; the channel walls of the fluid channel 11 of the first mounting seat 22 are connected in a sealing manner under the condition that the first limiting ribs 12 are in a molten state; the channel walls of the fluid channel 11 of the second mounting seat 32 are connected in a sealing manner with the second stop bead 13 in the molten state.

The first valve body 20 comprises a first mounting rod 21 and a first mounting seat 22, the axial direction of the first mounting rod 21 is consistent with the expansion and contraction direction of the elastic piece 40, wherein one end of the first mounting rod 21 is connected with the first mounting seat 22, the other end of the first mounting rod 21 is abutted with the first limiting rib 12, and accordingly the first valve body 20 can be abutted with the first limiting rib 12 through the first mounting rod 21; the second valve body 30 includes a second mounting rod 31 and a second mounting seat 32, the axial direction of the second mounting rod 31 is consistent with the expansion and contraction direction of the elastic member 40, one end of the second mounting rod 31 is connected with the second mounting seat 32, and the other end of the second mounting rod 31 is abutted with the second limiting rib 13, so that the second valve body 30 can be abutted with the second limiting rib 13 through the second mounting rod 31. One end of the elastic member 40 is abutted against the first mounting seat 22, and the other end of the elastic member 40 is abutted against the second mounting seat 32, so that the first valve body 20 and the second valve body 30 are connected through the elastic member 40, and therefore, when the first limiting rib 12 is in a molten state, the first mounting rod 21 is separated from the first limiting rib 12, and the elastic member 40 can push the first mounting seat 22 in the process of stretching the elastic member 40 from the compression device to an initial state, so that the first mounting seat 22 and the channel wall are in sealing connection to block the fluid channel 11; alternatively, in the case that the second stop rib 13 is in the molten state, the second mounting rod 31 is separated from the second stop rib 13, and the elastic member 40 may push the second mounting seat 32 during the process of extending the elastic member 40 from the compression device to the initial state, so that the second mounting seat 32 is in sealing connection with the channel wall to block the fluid channel 11.

In addition, in some embodiments, as shown in fig. 1, 2 and 6, the end of the first mounting seat 22 away from the first mounting rod 21 may be provided with a first mounting cavity 23, the end of the second mounting seat 32 away from the second mounting rod 31 may be provided with a second mounting cavity 33, the first mounting cavity 23 is opposite to the second mounting cavity 33, one end of the elastic member 40 is abutted with the cavity bottom of the first mounting cavity 23, and the other end of the elastic member 40 is abutted with the cavity bottom of the second mounting cavity 33.

The one end that first mount pad 22 kept away from first installation pole 21 is provided with first installation cavity 23, the one end that second mount pad 32 kept away from second installation pole 31 is provided with second installation cavity 33, thereby first installation cavity 23 is relative with the position of second installation cavity 33, first installation cavity 23, second installation cavity 33 can form the space that holds elastic component 40, can set up elastic component 40 in first installation cavity 23 and second installation cavity 33, and make the one end and the chamber bottom butt of first installation cavity 23 of elastic component 40, the other end and the chamber bottom butt of second installation cavity 33 of elastic component 40, thereby the elastic component 40 that sets up between first valve body 20 and second valve body 30 can be with first installation cavity 23, second installation cavity 33 is the installation space, reduce the distance between first valve body 20 and the second valve body 30, make the distance between first installation pole 21 and the second installation pole 31 less, thereby the distance between first spacing muscle 12, the second spacing muscle 13 can reduce the distance between first trompil 10, can reduce to the trompil size between the first trompil 100, portable device, the trompil is smaller, the trompil is made to the trompil is smaller, the size is smaller to the trompil is carried to the trompil is smaller.

As shown in fig. 7 and 8, the first mounting cavity 23 may have different forms, for example, an opening may be provided on the first mounting seat 22, the opening may form the first mounting cavity 23, and a wall of the opening may be a smooth wall, as shown in fig. 7; alternatively, the wall of the hole may be uneven, and ribs, threads, etc. may be provided on the wall of the hole as shown in fig. 8, so long as it does not hinder the installation and expansion and contraction of the elastic member 40. Likewise, the second mounting cavity 23 may have a different form, and reference may be made to the above description of the first mounting cavity 23, which is not repeated herein.

In addition, in some embodiments, as shown in fig. 1, 2 and 6, the cavity bottom of the first installation cavity 23 may be connected with the first guide rod 24, and/or the cavity bottom of the second installation cavity 33 may be connected with the second guide rod 34, and the elastic member 40 is sleeved on the first guide rod 24 and/or the second guide rod 34, where the first guide rod 24 and the second guide rod 34 are used for guiding the expansion and contraction of the elastic member 40.

The first guide rod 24 is connected to the bottom of the first installation cavity 23, the elastic piece 40 can be sleeved on the first guide rod 24, the first guide rod 24 can guide the expansion and contraction of the elastic piece 40, so that the elastic piece 40 can be prevented from deflecting when expanding and contracting along the first guide rod 24, the force applied by the elastic piece 40 to the first valve body 20 or the second valve body 30 is prevented from deflecting, the first valve body 20 or the second valve body 30 deflects when moving, the sealing effect of the fluid channel 11 is poor, and the problem of poor fire suppression effect occurs.

And/or, the bottom of the second installation cavity 33 is connected with the second guide rod 34, the elastic piece 40 can be sleeved on the second guide rod 34, and the second guide rod 34 can guide the expansion and contraction of the elastic piece 40, so that the elastic piece 40 can expand and contract along the second guide rod 34, the problem that the elastic piece 40 deflects the force exerted by the elastic piece 40 on the first valve body 20 or the second valve body 30 when expanding and contracting, so that the first valve body 20 or the second valve body 30 deflects when moving, the sealing effect of the fluid channel 11 is poor, and the fire suppression effect is poor can be avoided.

In the embodiment of the present utility model, the bottom of the first installation cavity 23 may be connected with the first guide rod 24, or the bottom of the second installation cavity 33 may be connected with the second guide rod 34, or, further, the bottom of the first installation cavity 23 may be connected with the first guide rod 24, the bottom of the second installation cavity 33 may be connected with the second guide rod 34, and the elastic member 40 is sleeved on the first guide rod 24 and the second guide rod 34, so that the telescopic guiding effect of the elastic member 40 is better.

In addition, in order to make the first guide bar 24 longer and extend into the second installation cavity 33 in a case where the first guide bar 24 is connected to the cavity bottom of the first installation cavity 23, the first guide bar 24 has a good guide effect on the elastic member 40, and in order to make the second guide bar 34 longer and extend into the first installation cavity 23 in a case where the second guide bar 34 is connected to the cavity bottom of the second installation cavity 33, the second guide bar 34 has a good guide effect on the elastic member 40.

It should be noted that the first mounting cavity 23 may not be provided on the first mounting seat 22, the second mounting cavity 33 may not be provided on the second mounting seat 32, the surface of the first mounting seat 22 facing the second mounting seat 32, and the surface of the second mounting seat 32 facing the first mounting seat 22 may directly abut against the elastic member 40, respectively, and the first mounting seat 22 or the second mounting seat 32 may be pushed by the elastic member 40. In order to avoid the problem that the elastic member 40 is easy to deviate when the elastic member 40 directly contacts with the surface of the first mounting seat 22 facing the second mounting seat 32 and the surface of the second mounting seat 32 facing the first mounting seat 22, the surface of the first mounting seat 22 facing the second mounting seat 32 can be provided with a guide shaft 26, and the guide shaft 26 extends to the surface of the second mounting seat 32 facing the first mounting seat 22, and at this time, the expansion and contraction of the elastic member 40 can be guided by the guide shaft 26; alternatively, the surface of the second mount 32 facing the first mount 22 may be provided with a guide shaft 26, such that the guide shaft 26 extends to the surface of the first mount 22 facing the second mount 32, as shown in fig. 5.

In addition, in some embodiments, only the first mounting seat 22 may be provided with the first mounting cavity 23, and the first guide rod 24 is disposed in the first mounting cavity 23, so that two ends of the elastic member 40 respectively abut against the cavity bottom of the first mounting cavity 23 and the surface of the second mounting seat 32 facing the first mounting seat 22; alternatively, only the second mounting seat 32 may be provided with the second mounting cavity 33, and the second guide rod 34 may be provided in the second mounting cavity 33 such that both ends of the elastic member 40 are respectively abutted against the bottom of the second mounting cavity 33 and the surface of the first mounting seat 22 facing the second mounting seat 32.

In addition, in some embodiments, as shown in fig. 1, 2 and 6, a first positioning portion 25 is disposed at a peripheral portion of the first mounting seat 22, a first positioning groove 14 is disposed on an inner wall of the fluid channel 11, an extending direction of the first positioning groove 14 is consistent with a stretching direction of the elastic member 40, the first positioning portion 25 may be embedded in the first positioning groove 14, and the first positioning groove 14 is used for limiting a moving direction of the first mounting seat 22 when the first limiting rib 12 is in a molten state; and/or, the circumference of the second mounting seat 32 is provided with a second positioning portion 35, the inner wall of the fluid channel 11 is provided with a second positioning groove 15, the extending direction of the second positioning groove 15 is consistent with the extending direction of the elastic piece 40, the second positioning portion 35 can be embedded in the second positioning groove 15, and the second positioning groove 15 is used for limiting the moving direction of the second mounting seat 32 under the condition that the second limiting rib 13 is in a molten state.

The circumference of the first mounting seat 22 is provided with a first positioning portion 25, the inner wall of the fluid channel 11 is provided with a first positioning groove 14, the first positioning portion 25 can be embedded in the first positioning groove 14, and because the extending direction of the first positioning groove 14 is consistent with the extending direction of the elastic piece 40, the first positioning portion 25 can move in the first positioning groove 14 when the first valve body 20 moves, in this embodiment, the first positioning portion 25 can be limited by the first positioning groove 14 to limit the moving direction of the first mounting seat 22, and further limit the moving direction of the first valve body 20, so that the first mounting seat 22 is prevented from shifting when moving, and the problem of poor sealing effect of the fluid channel 11 occurs.

And/or, the circumference of the second mount 32 is provided with the second positioning portion 35, the inner wall of the fluid channel 11 is provided with the second positioning groove 15, the second positioning portion 35 can be embedded in the second positioning groove 15, and because the extending direction of the second positioning groove 15 is consistent with the extending direction of the elastic member 40, the second positioning portion 35 can move in the second positioning groove 15 when the second valve body 30 moves, in this embodiment, the second positioning portion 35 can be limited by the second positioning groove 15 to limit the moving direction of the second mount 32, and can further limit the moving direction of the second valve body 30, so as to prevent the second mount 32 from shifting when moving, and the problem of poor sealing effect of the fluid channel 11 occurs.

It should be noted that, the first positioning portions 25 may be provided with a plurality of first positioning portions 25, which are distributed at intervals on the periphery of the first mounting seat 22, and the corresponding first positioning grooves 14 may also be provided with a plurality of first positioning portions 25, each first positioning portion 25 is embedded in one positioning groove, so that the movement of the first mounting seat 22 can be limited at a plurality of positions, and the limiting effect on the first mounting seat 22 is better. Specifically, the number of the first positioning portions 25 may be 4, at this time, 4 first positioning portions 25 are distributed at intervals on the periphery of the first mounting seat 22, and an angle between every two adjacent first positioning portions 25 may be 90 °, as shown in fig. 6, or the number of the first positioning portions 25 may also be other numbers, for example, 3, 2, 5, 6, 7, etc., and the specific number of the first positioning portions 25 is not specifically limited herein.

Of course, the number of the second positioning portions 35 may be plural, and specific reference may be made to the above description of the first positioning portions 25, which is not repeated in the embodiment of the present utility model.

In addition, as shown in fig. 1 and 2, a first mounting groove 16 may be provided on an inner wall of the fluid channel 11, the first mounting groove 16 extending along a circumferential direction of the fluid channel 11 and surrounding the fluid channel 11, a first seal 17 is provided in the first mounting groove 16, and a portion of the first seal 17 extends out of the first mounting groove 16, the first seal 17 is opposite to the first valve body 20, and the first seal 17 is used to abut against the first valve body 20 when the first stop rib 12 is in a molten state, so that the first valve body 20 is in sealing connection with a channel wall of the fluid channel 11; and/or, a second mounting groove 18 may be provided on an inner wall of the fluid channel 11, the second mounting groove 18 extends along a circumferential direction of the fluid channel 11 and surrounds the fluid channel 11, a second sealing member 19 is provided in the second mounting groove 18, a portion of the second sealing member 19 extends out of the second mounting groove 18, the second sealing member 19 is opposite to the second valve body 30, and the second sealing member 19 is used for abutting against the second valve body 30 when the second limiting rib 13 is in a molten state, so that the second valve body 30 is in sealing connection with a channel wall of the fluid channel 11.

The inner wall of the fluid channel 11 is provided with the first mounting groove 16, the first mounting groove 16 extends along the circumferential direction of the fluid channel 11 and surrounds the fluid channel 11, the first sealing piece 17 can be arranged in the first mounting groove 16, and as part of the first sealing piece 17 extends out of the first mounting groove 16, the first sealing piece 17 extends out of the channel wall of the fluid channel 11, so that under the condition that the first mounting seat 22 moves, the first mounting seat 22 can be abutted with the first sealing piece 17, the sealing connection between the first mounting seat 22 and the fluid channel 11 can be realized, the blocking effect of the first mounting seat 22 on the fluid channel 11 is good, and the problem of poor fire suppression effect due to a small amount of oxygen flow is avoided.

The second mounting groove 18 is formed in the inner wall of the fluid channel 11, the second mounting groove 18 extends along the circumferential direction of the fluid channel 11 and surrounds the fluid channel 11, the second sealing piece 19 can be arranged in the second mounting groove 18, and as part of the second sealing piece 19 extends out of the second mounting groove 18, the second sealing piece 19 extends out of the channel wall of the fluid channel 11, so that under the condition that the second mounting seat 32 moves, the second mounting seat 32 can be abutted with the second sealing piece 19, the sealing connection between the second mounting seat 32 and the fluid channel 11 can be realized, the blocking effect of the second mounting seat 32 on the fluid channel 11 is good, and the problem that the fire disaster inhibition effect is poor due to a small amount of oxygen flow is avoided.

The first seal 17 and the second seal 19 may be elastic sealing rings, so that when the first mount 22 abuts against the first seal 17 and the second mount 32 abuts against the second seal 19, the first seal 17 and the second seal 19 may be compressed so that the first mount 22 is in close contact with the first seal 17 and the second mount 32 is in close contact with the second seal 19. The first sealing member 17 and the second sealing member 19 may be made of silicone rubber, ethylene propylene rubber, neoprene rubber, nitrile rubber, etc., and the specific materials of the first sealing member 17 and the second sealing member 19 are not specifically limited herein.

In addition, in some embodiments, as shown in fig. 1 and 2, the channel wall of the fluid channel 11 may have a first blocking table 111 and a second blocking table 112 along the circumferential direction of the fluid channel 11, and the first blocking table 111 and the second blocking table 112 are spaced apart along the direction from the first opening to the second opening, the first valve body 20 and the second valve body 30 are located between the first blocking table 111 and the second blocking table 112, and in the direction from the first opening to the second opening, the projection of the first blocking table 111 and the projection of the first valve body 20 have an overlapping portion, and the projection of the second blocking table 112 and the projection of the second valve body 30 have an overlapping portion; the first blocking table 111 has a first surface 1111 facing the first valve body 20 in a direction from the first opening to the second opening, the first mounting groove 16 is provided on the first surface 1111, the first mounting groove 16 extends along a circumferential direction of the fluid passage 11, and a projection of the first mounting groove 16 is located inside a projection of the first valve body 20 in the direction from the first opening to the second opening; and/or the second blocking table 112 has a second surface 1121 facing the second valve body 30 in a direction from the first opening to the second opening, the second mounting groove 18 is provided on the second surface 1121, the second mounting groove 18 extends along the circumferential direction of the fluid passage 11, and a projection of the second mounting groove 18 is located inside a projection of the second valve body 30 in the direction from the first opening to the second opening.

The channel wall of the fluid channel 11 may have a first blocking step 111 and a second blocking step 112 along the circumferential direction of the fluid channel 11, the first blocking step 111 and the second blocking step 112 being spaced apart in a direction from the first opening to the second opening, and the first valve body 20 and the second valve body 30 being located between the first blocking step 111 and the second blocking step 112. Since the projection of the first blocking table 111 and the projection of the first valve body 20 have overlapping portions in the direction from the first opening to the second opening, the first valve body 20 can be moved to abut against the first blocking table 111 in a state where the first stopper rib 12 is in a molten state, so that the first valve body 20 seals the fluid passage 11 through the first blocking table 111; since the projection of the second blocking table 112 and the projection of the second valve body 30 have overlapping portions, the second valve body 30 can be moved to abut against the second blocking table 112 in a state where the second stopper rib 13 is in a molten state, so that the second valve body 30 seals the fluid passage 11 through the second blocking table 112.

The first blocking table 111 has a first surface 1111 facing the first valve body 20 in a direction from the first opening to the second opening, and the first mounting groove 16 is disposed on the first surface 1111 such that an angle is formed between the first surface 1111 and an extending direction of the elastic member 40, and the first valve body 20 may abut against the first surface 1111 when moving. Since the projection of the first mounting groove 16 is located inside the projection of the first valve body 20 in the direction from the first opening to the second opening, when the first valve body 20 moves, the first valve body 20 can abut against the first seal 17, and when the first valve body 20 moves to abut against the first seal 17, the first valve body 20 applies a force to the first seal 17, so that the first seal 17 deforms toward the first mounting groove 16, the first seal 17 contacts with the first valve body 20 well, and the blocking effect on the fluid passage 11 is good. The first mounting groove 16 extends along the circumferential direction of the fluid channel 11, the first sealing member 17 also extends around the circumferential direction of the fluid channel 11, and the first valve body 20 can be abutted with the first sealing member 17 along all directions of the fluid channel 11, so that the blocking effect on the fluid channel 11 is good.

And/or the second blocking table 112 has a second surface 1121 facing the second valve body 30 in a direction from the first opening to the second opening, and the second mounting groove 18 is provided on the second surface 1121 so that the second surface 1121 has an angle with the extending direction of the elastic member 40, and the second valve body 30 can abut against the second surface 1121 when moving. Since the projection of the second mounting groove 18 is located inside the projection of the second valve body 30 in the direction from the first opening to the second opening, when the second valve body 30 moves, the second valve body 30 can abut against the second seal 19, and when the second valve body 30 moves to abut against the second seal 19, the second valve body 30 applies a force to the second seal 19, so that the second seal 19 deforms toward the second mounting groove 18, and the second seal 19 contacts with the second valve body 30 well, and the blocking effect on the fluid passage 11 is good. The second mounting groove 18 extends along the circumferential direction of the fluid channel 11, the second sealing member 19 also extends around the circumferential direction of the fluid channel 11, and the second valve body 30 can be abutted with the second sealing member 19 along all directions of the fluid channel 11, so that the blocking effect on the fluid channel 11 is good.

In the embodiment of the present utility model, the first sealing member 17 is provided on the first surface 1111, and the first sealing member 17 is deformed toward the first surface 1111 when the first valve body 20 is moved; the second seal 19 is provided on the second surface 1121, and the second seal 19 deforms toward the second surface 1121 when the second valve body 30 moves. When the first seal 17 is directly provided on the channel wall of the fluid channel 11 and the second seal 19 is directly provided on the channel wall of the fluid channel 11, the first seal 17 and the second seal 19 can be prevented from being deformed in the expansion and contraction direction of the elastic member 40 when the first valve body 20 or the second valve body 30 moves to press the first seal 17 and the second seal 19, the first valve body 20 is at risk of crossing the first seal 17, the second valve body 30 is at risk of crossing the second seal 19, and the problem of losing the sealing effect on the fluid channel 11 of the first valve body 20 and the second valve body 30 can be avoided.

In addition, in some embodiments, as shown in fig. 1 and 2, the housing 10 may include a first sub-housing 122 and a second sub-housing 124, the first sub-housing 122 is disposed opposite to the second sub-housing 124, a first channel 123 is disposed inside the first sub-housing 122, a second channel 125 is disposed inside the second sub-housing 124, the first sub-housing 122 is connected to the second sub-housing 124, and the first channel 123 communicates with the second channel 125 to form the fluid channel 11, the first valve body 20 is disposed in the first sub-housing 122, and the second valve body 30 is disposed in the second sub-housing 124.

The housing 10 may include a first sub-housing 122 and a second sub-housing 124, where the first sub-housing 122 is disposed opposite to the second sub-housing 124, a first channel 123 is disposed inside the first sub-housing 122, and a second channel 125 is disposed inside the second sub-housing 124, so that after the first sub-housing 122 is connected to the second sub-housing 124, the first channel 123 and the second channel 125 are in communication to form the fluid channel 11, the first valve body 20 is disposed in the first sub-housing 122, and the second valve body 30 is disposed in the second sub-housing 124.

It should be noted that, since the pipelines of the oxygen therapy apparatus and the pipelines of the oxygen supply end are generally smaller, the two ends of the whole housing 10 are smaller, the housing 10 can be made into a structure with a thick middle and two thin sides, and correspondingly, the fluid channel 11 can also be made into a structure with a thick middle and two thin sides, and the middle part of the housing 10 can provide an installation space for the first installation seat 22 and the second installation seat 32, as shown in fig. 1, 2 and 4. In addition, the fluid passage 11 with a larger middle part can avoid influencing the flow of oxygen, because the pipeline connected with the fire protection device 100 is smaller, when oxygen flows to the middle part of the fluid passage 11, the oxygen can flow from the gaps between the first mounting seat 22 and the passage walls of the fluid passage 11 and the gaps between the second mounting seat 32 and the passage walls of the fluid passage 11, and because the middle part of the fluid passage 11 is also larger, the quantity of oxygen flowing in the gaps between the first mounting seat 22, the second mounting seat 32 and the passage walls of the fluid passage 11 is equivalent to the quantity of oxygen flowing in the pipeline, and the influence of the arrangement of the first valve body 20 and the second valve body 30 on the flow of oxygen can be avoided.

In the embodiment of the utility model, the housing 10 is separately arranged, and specifically includes the first sub-housing 122 and the second sub-housing 124, so that the first valve body 20 and the second valve body 30 can be conveniently installed, and the problems that the first installation seat 22 and the second installation seat 32 are large in size and difficult to install from the two smaller ends are avoided.

Additionally, in some embodiments, as shown in fig. 1, a first connector 51 may be connected to the first opening, the first connector 51 being in communication with the fluid channel 11; the second opening may be connected with a second connector 52, the second connector 52 being in communication with the fluid channel 11; the first joint 51 and the second joint 52 are used for communicating with a pipeline of an oxygen therapy apparatus or a pipeline of an oxygen supply end.

The first opening is connected with a first joint 51, the second opening is connected with a second joint 52, and the first joint 51 is communicated with the fluid channel 11, and the second joint 52 is communicated with the fluid channel 11, so that the fire-proof device 100 can be communicated with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end through the first joint 51 and the second joint 52, so that the fire-proof device 100 can be applied to the oxygen therapy process.

It should be noted that, since the pipeline of the oxygen therapy apparatus and the pipeline of the oxygen supply end are generally smaller, the two ends of the whole housing 10 are smaller, the housing 10 can be made into a structure with a thick middle and two thin sides, and correspondingly, the fluid channel 11 can also be made into a structure with a thick middle and two thin sides, and the middle part of the housing 10 can provide an installation space for the first installation seat 22 and the second installation seat 32. In addition, the fluid passage 11 with a larger middle part can avoid influencing the flow of oxygen, because the pipeline connected with the fire protection device 100 is smaller, when oxygen flows to the middle part of the fluid passage 11, the oxygen can flow from the gaps between the first mounting seat 22 and the passage walls of the fluid passage 11 and the gaps between the second mounting seat 32 and the passage walls of the fluid passage 11, and because the middle part of the fluid passage 11 is also larger, the quantity of oxygen flowing in the gaps between the first mounting seat 22, the second mounting seat 32 and the passage walls of the fluid passage 11 is equivalent to the quantity of oxygen flowing in the pipeline, and the influence of the arrangement of the first valve body 20 and the second valve body 30 on the flow of oxygen can be avoided.

In the embodiment of the present utility model, the fire protection device 100 includes a housing 10, a first valve body 20, a second valve body 30, and an elastic member 40, wherein the housing 10 has a fluid channel 11 therein, one end of the housing 10 has a first opening, and the second end of the housing 10 has a second opening, and the first opening, the fluid channel 11, and the second opening may form a channel for allowing gas to circulate because the first opening and the second opening are both in communication with the fluid channel 11. Wherein, the first opening and the second opening are used for communicating with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end, so that one end of the fluid channel 11 can be connected with the pipeline of the oxygen therapy instrument through the first opening and the second opening, the other end of the fluid channel 11 is connected with the pipeline of the oxygen supply end, and the oxygen therapy instrument can deliver oxygen to a patient through the oxygen supply end. The hole wall of the first hole is fixedly provided with a first limiting rib 12, the hole wall of the second hole is fixedly provided with a second limiting rib 13, the first end of the first valve body 20 is abutted against the first limiting rib 12, the second end of the second valve body 30 is abutted against the second limiting rib 13, an elastic piece 40 is connected between the second end of the first valve body 20 and the second end of the second valve body 30, so that the first valve body 20 and the second valve body 30 can be distributed at intervals along the direction from the first hole to the second hole, and because the elastic piece 40 is in a compressed state, the expansion direction of the elastic piece 40 is consistent with the extension direction of the fluid channel 11, the elastic piece 40 can apply force to the first valve body 20 and the second valve body 30, so that the first valve body 20 has a trend of moving towards the direction of the first hole, the second valve body 30 has a trend of moving towards the second hole, and at the moment, the first limiting rib 12 can block the first valve body 20, and the second limiting rib 13 can block the second valve body 30. Since gaps through which gas flows are provided between the peripheral portion of the first valve body 20 and the peripheral portion of the second valve body 30 and the channel wall of the fluid channel 11, gas can flow through the gaps during normal use, so that the oxygen therapy apparatus can be used normally. Under the condition that the first limiting rib 12 is in a molten state, the first limiting rib 12 loses the blocking effect on the first valve body 20, at the moment, the elastic piece 40 stretches, which is equivalent to the elastic piece 40 releasing elastic potential energy, the first valve body 20 moves to a first position in the direction of the first opening hole under the elastic action of the elastic piece 40, so that the first valve body 20 is in sealing connection with the channel wall of the fluid channel 11, the fluid channel 11 can be blocked, and oxygen is prevented from continuing to flow in the fluid channel 11; under the condition that the second limiting rib 13 is in a molten state, the second limiting rib 13 loses the blocking effect on the second valve body 30, at the moment, the elastic piece 40 stretches, the elastic piece 40 releases elastic potential energy, and the second valve body 30 moves to a second position in the direction of the second opening hole under the elastic action of the elastic piece 40, so that the second valve body 30 is in sealing connection with the channel wall of the fluid channel 11, the fluid channel 11 can be blocked, and oxygen is prevented from continuing to flow in the fluid channel 11.

In addition, the embodiment of the utility model also comprises ventilation treatment equipment, which comprises the following components: oxygen therapy apparatus, oxygen supply end, and fire protection device 100 in any of the above embodiments; the first opening is connected with an oxygen therapy instrument, and the second opening is connected with an oxygen supply end; or the second opening is connected with the oxygen therapy instrument, and the first opening is connected with the oxygen supply end.

In the ventilation treatment apparatus provided with the above fire prevention device 100, the first valve body 20 or the second valve body 30 may be sealingly connected with the fluid passage 11 in the event of a fire, so that the fluid passage 11 may be blocked. The fire protection device 100 can prevent oxygen from continuing to flow in the fluid channel 11, so that flame is prevented from gradually burning along with the oxygen pipe to the machine body, fire spread is easily caused, and the problem of serious fire disaster caused by finally igniting the oxygen generator is solved.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims

1. A fire protection apparatus, comprising: the oxygen therapy device comprises a shell, a first valve body, a second valve body and an elastic piece, wherein a fluid channel is arranged in the shell, a first opening is formed in one end of the shell, a second opening is formed in the second end of the shell, the first opening and the second opening are communicated with the fluid channel, and the first opening and the second opening are used for being communicated with a pipeline of an oxygen therapy instrument or a pipeline of an oxygen supply end;

2. The fire protection device according to claim 1, wherein the first valve body comprises a first mounting rod and a first mounting seat, an axial direction of the first mounting rod is consistent with a telescopic direction of the elastic piece, one end of the first mounting rod is connected with the first mounting seat, the other end of the first mounting rod is abutted with the first limiting rib, and one end of the elastic piece is abutted with the first mounting seat;

3. The fire protection device according to claim 2, wherein a first installation cavity is formed in one end, away from the first installation rod, of the first installation seat, a second installation cavity is formed in one end, away from the second installation rod, of the second installation seat, the first installation cavity is opposite to the second installation cavity in position, one end of the elastic piece is in butt joint with the cavity bottom of the first installation cavity, and the other end of the elastic piece is in butt joint with the cavity bottom of the second installation cavity.

4. A fire protection device according to claim 3, wherein the bottom of the first installation cavity is connected with a first guide rod, and/or the bottom of the second installation cavity is connected with a second guide rod, the elastic member is sleeved on the first guide rod and/or the second guide rod, and the first guide rod and the second guide rod are used for guiding the expansion and contraction of the elastic member.

5. The fire protection device according to claim 2, wherein a first positioning portion is provided at a peripheral portion of the first mounting seat, a first positioning groove is provided on an inner wall of the fluid channel, an extending direction of the first positioning groove is consistent with a stretching direction of the elastic member, the first positioning portion is embedded in the first positioning groove, and the first positioning groove is used for limiting a moving direction of the first mounting seat when the first limiting rib is in a molten state;

6. The fire protection device according to claim 1, wherein a first mounting groove is provided on an inner wall of the fluid passage, the first mounting groove extending in a circumferential direction of the fluid passage and surrounding the fluid passage, a first seal is provided in the first mounting groove, and a portion of the first seal extends out of the first mounting groove, the first seal being opposite to the first valve body, the first seal being adapted to abut against the first valve body in a state where the first stopper rib is in a molten state so as to sealingly connect the first valve body with a passage wall of the fluid passage;

7. The fire protection apparatus according to claim 6, wherein a channel wall of the fluid channel has a first blocking land and a second blocking land along a circumferential direction of the fluid channel, the first blocking land and the second blocking land are spaced apart along a direction from the first opening to the second opening, the first valve body and the second valve body are located between the first blocking land and the second blocking land, and a projection of the first blocking land and a projection of the first valve body have an overlapping portion in the direction from the first opening to the second opening, and a projection of the second blocking land and a projection of the second valve body have an overlapping portion;

8. The fire protection device of claim 1, wherein the housing comprises a first sub-housing and a second sub-housing, the first sub-housing is disposed opposite the second sub-housing, a first channel is disposed within the first sub-housing, a second channel is disposed within the second sub-housing, the first sub-housing is connected to the second sub-housing, and the first channel communicates with the second channel to form the fluid channel, the first valve body is disposed in the first sub-housing, and the second valve body is disposed in the second sub-housing.

9. The fire protection device of claim 1, wherein the first opening has a first connector connected thereto, the first connector in communication with the fluid passage;

10. A ventilation therapy apparatus, the ventilation therapy apparatus comprising: an oxygen therapy device, an oxygen supply end, and the fireproof device according to any one of claims 1 to 9;

the first opening is connected with the oxygen therapy instrument, and the second opening is connected with the oxygen supply end;

or, the second opening is connected with the oxygen therapy instrument, and the first opening is connected with the oxygen supply end.