Combination valve and liquid oxygen supply device

Abstract

The utility model discloses a combination valve and a liquid oxygen supply device, the combination valve is applied to the liquid oxygen supply device, the combination valve comprises an air inlet pipe, at least one safety valve and an air outlet pipe which are connected in sequence, and a mounting seat, the mounting seat comprises an air inlet pipeline, an air outlet pipeline and a pressure relief pipeline; the safety valve is arranged on the mounting seat, and the bottom of the safety valve is respectively communicated with the air inlet pipeline, the air outlet pipeline and the pressure relief pipeline; wherein the safety valve comprises an elastic piece and an abutting piece, one end of the abutting piece abuts against the elastic piece, and the other end of the abutting piece abuts against the opening of the pressure relief pipeline. According to the liquid oxygen supply device, the abutting piece in the safety valve abuts against the opening of the pressure relief pipeline, and when the internal pressure of the liquid oxygen supply device is too large, the internal pressure of the liquid oxygen supply device abuts against the abutting piece to compress the elastic piece to open the pressure relief pipeline to relieve the pressure of the liquid oxygen supply device; the problem that when the internal pressure of an existing liquid oxygen supply device is too large, pressure relief cannot be conducted is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen supply device technical field, especially in combination valve and liquid oxygen oxygen supply device. BACKGROUND

[0002] With the increase of altitude on the plateau, the oxygen content of air also decreases accordingly. For example, the average altitude of Qinghai-Tibet Plateau is more than 4000 meters, the air is thin, the air pressure is low, and the normal oxygen supply demand of human body cannot be met, thereby causing hypoxia to cause multiple dysfunction of the body and even endanger life.

[0003] Especially when engaged in field work, with the increase of physical strength, more oxygen is consumed, and the plateau hypoxia reaction is more serious, the physical fitness decreases obviously, and breathing is difficult. The plateau sickness causes different degrees of harm to the human body, and even causes death when the hypoxia is serious.

[0004] At present, the main oxygen supply device on the market is to use gaseous oxygen bag to supply oxygen or air concentration to supply oxygen. The defects of the two ways are that the occupied space is large, the oxygen capacity is small, and the additional power supply is needed, which is not convenient for long time field carrying. The use of liquid oxygen oxygen supply device can meet the demand of lightness and large capacity.

[0005] However, the existing liquid oxygen oxygen supply device cannot be relieved when the internal pressure is too large, which is easy to cause damage to the liquid oxygen oxygen supply device and is not convenient for users to use. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of combination valve and liquid oxygen oxygen supply device, to solve the problem that the internal pressure of existing liquid oxygen oxygen supply device is too large and cannot be relieved.

[0007] To solve the above technical problems, the utility model aims at realizing by the following technical scheme: a combination valve is applied to liquid oxygen oxygen supply device, comprising: gas inlet pipe, at least one safety valve and gas outlet pipe connected in sequence, and mounting seat, the mounting seat includes gas inlet pipe, gas outlet pipe and pressure relief pipe;The gas inlet pipe is connected to the gas inlet pipe, and the gas outlet pipe is connected to the gas outlet pipe, and the safety valve is arranged on the mounting seat, and the bottom of the safety valve is communicated with the gas inlet pipe, the gas outlet pipe and the pressure relief pipe respectively;Wherein, the safety valve includes elastic member and abutment piece, one end of the abutment piece is abutted on the elastic member, and the other end is abutted on the opening of the pressure relief pipe.

[0008] Further, the safety valve further includes: valve body and adjusting member, the valve body is provided with mounting cavity, and one end of the valve body faces the abutment piece;The adjusting member is connected to the other end of the valve body, the elastic member is arranged in the mounting cavity, and one end of the elastic member is connected to the adjusting member, and the other end is abutted on one end of the abutment piece.

[0009] Further, the safety valve further comprises a connecting seat, one end of the connecting seat is connected to the other end of the elastic member, and the other end abuts against the abutting member.

[0010] Further, the safety valve further comprises an abutting seat, the abutting seat is sleeved and connected outside the connecting seat, the abutting seat abuts against the abutting member, and a pressure member is arranged between the abutting seat and the connecting seat.

[0011] Further, the mounting seat further comprises a mounting groove, the bottom of the mounting groove is communicated with the air inlet pipeline, the air outlet pipeline and the pressure relief pipeline, and the safety valve is mounted in the mounting groove.

[0012] Further, the height of the opening of the pressure relief pipeline relative to the bottom of the mounting groove is higher than the height of the openings of the air inlet pipeline and the air outlet pipeline relative to the bottom of the mounting groove.

[0013] Further, the adjusting member is a screw, and the screw is threadedly connected to the other end of the valve body.

[0014] Further, the safety valve further comprises a gasket ring, and the gasket ring is arranged between one end of the valve body and the abutting member.

[0015] Further, the safety valve is provided with two safety valves, and the pressure of the abutting member of the safety valve close to the air inlet pipeline abutting on the opening of the pressure relief pipeline is greater than the pressure of the abutting member of the safety valve away from the air inlet pipeline abutting on the opening of the pressure relief pipeline.

[0016] The utility model further provides a liquid oxygen oxygen supply device, including liquid oxygen oxygen supply device body and combination valve as above, liquid oxygen oxygen supply device body includes liquid oxygen tank and oxygen inhalation pipe, air inlet pipe communicates liquid oxygen tank, air outlet pipe communicates oxygen inhalation pipe.

[0017] The utility model discloses a combination valve and liquid oxygen oxygen supply device, wherein, the combination valve is applied to the liquid oxygen oxygen supply device, comprising: air inlet pipe, at least one safety valve and air outlet pipe that connect in turn, and mounting seat, and the mounting seat includes air inlet pipeline, air outlet pipeline and pressure relief pipeline, air inlet pipe connects air inlet pipeline, and air outlet pipe connects air outlet pipeline, and the safety valve is arranged on the mounting seat, and the safety valve bottom part is communicated with air inlet pipeline, air outlet pipeline and pressure relief pipeline respectively, wherein, the safety valve includes elastic member and abutting member, and one end of the abutting member abuts on the elastic member, and the other end abuts on the opening of the pressure relief pipeline, the utility model discloses through the abutting member in the safety valve and abuts on the opening of the pressure relief pipeline, when the internal pressure of liquid oxygen oxygen supply device is too big, the internal pressure of liquid oxygen oxygen supply device presses the abutting member and compresses the elastic member to open the pressure relief pipeline and carries out pressure relief to liquid oxygen oxygen supply device, and the problem that the internal pressure of the existing liquid oxygen oxygen supply device is too big and cannot carry out pressure relief is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The structure schematic diagram of the combined valve from the first perspective provided by the embodiment of the present application is shown in the figure.

[0020] Figure 2 The structure schematic diagram of the combined valve from the second perspective provided by the embodiment of the present application is shown in the figure.

[0021] Figure 3 The structure schematic diagram of the combined valve from the third perspective provided by the embodiment of the present application is shown in the figure.

[0022] Figure 4 The sectional view A-A provided by the embodiment of the present application is shown in the figure.

[0023] Figure 5 The structure schematic diagram of the combined valve from the fourth perspective provided by the embodiment of the present application is shown in the figure.

[0024] Figure 6 The structure schematic diagram of the safety valve from the first perspective provided by the embodiment of the present application is shown in the figure.

[0025] Figure 7 The structure schematic diagram of the safety valve from the second perspective provided by the embodiment of the present application is shown in the figure.

[0026] Figure 8 The sectional view B-B provided by the embodiment of the present application is shown in the figure.

[0027] Figure 9 The structure schematic diagram of the mounting seat from the first perspective provided by the embodiment of the present application is shown in the figure.

[0028] Figure 10 The sectional view C-C provided by the embodiment of the present application is shown in the figure.

[0029] Figure 11 The sectional view D-D provided by the embodiment of the present application is shown in the figure.

[0030] Figure 12 The structure schematic diagram of the mounting seat from the second perspective provided by the embodiment of the present application is shown in the figure.

[0031] Figure 13 The structure schematic diagram of the mounting seat from the third perspective provided by the embodiment of the present application is shown in the figure.

[0032] Figure 14The cross section E-E provided by the utility model embodiment.

[0033] The identification in the figure is:

[0034] 1, inlet pipe;

[0035] 2, safety valve; 21, elastic piece; 22, abutting piece; 23, valve body; 231, installation cavity; 24, adjusting piece; 25, connecting seat; 26, abutting seat; 27, pressure piece; 28, grommet;

[0036] 3, outlet pipe;

[0037] 4, mounting seat; 41, inlet pipeline; 42, outlet pipeline; 43, pressure relief pipeline; 44, installation groove. DETAILED DESCRIPTION

[0038] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0040] It should also be understood that the terms used in the utility model specification herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular form "a", "an" and "the" are intended to include the plural form.

[0041] It should be further understood that the term "and / or" used in the utility model specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0042] Combination Figures 1-14The utility model provides a kind of combined valve, applied to liquid oxygen oxygen supply device, comprising: the gas inlet pipe 1, at least one safety valve 2 and the gas outlet pipe 3 connected in turn, and, mounting seat 4, mounting seat 4 includes gas inlet pipe 41, gas outlet pipe 42 and pressure relief pipe 43;Gas inlet pipe 1 connects gas inlet pipe 41, gas outlet pipe 3 connects gas outlet pipe 42, and safety valve 2 is arranged on mounting seat 4, and safety valve 2 bottom respectively communicates gas inlet pipe 41, gas outlet pipe 42 and pressure relief pipe 43;Wherein, safety valve 2 includes elastic member 21 and abutting member 22, and one end of abutting member 22 is abutted on elastic member 21, and the other end is abutted on the opening of pressure relief pipe 43.

[0043] In the utility model embodiment, one end of gas inlet pipe 1 and gas outlet pipe 3 is connected with safety valve 2 respectively, and the other end is connected with gas inlet pipe 41 and gas outlet pipe 42 of mounting seat 4 respectively, and is connected at both ends of safety valve 2 through gas inlet pipe 41 and gas outlet pipe 42, and the other end of safety valve 2 is abutted on the opening of pressure relief pipe 43 through abutting member 22, when the pressure inside liquid oxygen oxygen supply device is too large, the pressure inside liquid oxygen oxygen supply device is pressed to compress elastic member 21 by abutting member 22, to open pressure relief pipe 43 and relieve pressure to liquid oxygen oxygen supply device, solve the problem that the pressure inside existing liquid oxygen oxygen supply device is too large and cannot relieve pressure.

[0044] In some specific embodiments, the radial section of the liquid oxygen oxygen supply device is oval, and the mounting seat 4 is arc-shaped corresponding to the shape of the liquid oxygen oxygen supply device, which helps to reduce the occupied space of the overall liquid oxygen oxygen supply device, and the structure is compact and stable.

[0045] In some embodiments, the safety valve 2 further comprises: a valve body 23 and an adjusting member 24, the valve body 23 has an installation cavity 231, and one end of the valve body 23 faces the abutting member 22; the adjusting member 24 is connected to the other end of the valve body 23, the elastic member 21 is arranged in the installation cavity 231, and one end of the elastic member 21 is connected to the adjusting member 24, and the other end of the elastic member 21 abuts one end of the abutting member 22.

[0046] In this embodiment, the installation cavity 231 provides a deformation space for the elastic member 21, the adjusting member 24 is connected to the other end of the valve body 23, one end of the elastic member 21 is connected to the adjusting member 24, and the position of the other end of the elastic member 21 can be adjusted by moving the adjusting member 24, so as to adjust the safety pressure threshold of the safety valve 2, for example, moving the adjusting member 24 away from the abutting member 22 can reduce the pressure threshold inside the liquid oxygen oxygen supply device, and moving the adjusting member 24 towards the abutting member 22 can increase the pressure threshold inside the liquid oxygen oxygen supply device.

[0047] In some embodiments, the safety valve 2 further comprises: a connecting seat 25, one end of the connecting seat 25 is connected to the other end of the elastic member 21, and the other end abuts the abutting member 22.

[0048] In the embodiment, the connecting seat 25 can increase the abutting area of the elastic member 21 to the abutting member 22, that is, uniformly abutting pressure of the elastic member 21 to the abutting member 22, so that the abutting member 22 abuts the pressure relief pipeline 43 more stably, and prevents a gap between the two, causing oxygen leakage.

[0049] In some specific embodiments, the safety valve 2 further comprises: an abutting seat 26, the abutting seat 26 is sleeved and connected outside the connecting seat 25, the abutting seat 26 abuts the abutting member 22, and the abutting seat 26 and the connecting seat 25 are provided with a pressure member 27.

[0050] In the embodiment, the abutting seat 26 is sleeved and connected outside the connecting seat 25, the abutting seat 26 abuts the abutting member 22, and the abutting seat 26 and the connecting seat 25 are provided with a pressure member 27, which further uniformly abutting pressure of the elastic member 21 to the abutting member 22, so that the abutting member 22 abuts the pressure relief pipeline 43 more stably, and prevents a gap between the two, causing oxygen leakage; and the pressure member 27 provides abutting pressure of the abutting seat 26 to the abutting member 22, and different pressure members 27 can be set according to the demand of the internal pressure of the liquid oxygen oxygen supplier. Specifically, the pressure member 27 is a stainless steel ball, which occupies less space.

[0051] In some embodiments, the mounting seat 4 further comprises: a mounting groove 44, the mounting groove 44 is communicated with the air inlet pipeline 41, the air outlet pipeline 42 and the pressure relief pipeline 43 at the bottom, and the safety valve 2 is mounted in the mounting groove 44.

[0052] In the embodiment, the safety valve 2 is mounted in the mounting groove 44, so that the safety valve 2 is more stably mounted on the mounting seat 4, and the air inlet pipeline 41, the air outlet pipeline 42 and the pressure relief pipeline 43 are arranged at the bottom of the mounting groove 44, which is convenient for connecting the safety valve 2.

[0053] In some specific embodiments, the opening height of the pressure relief pipeline 43 relative to the bottom of the mounting groove 44 is higher than the opening height of the air inlet pipeline 41 and the air outlet pipeline 42 relative to the bottom of the mounting groove 44.

[0054] In the embodiment, the opening height of the pressure relief pipeline 43 is higher than the opening height of the air inlet pipeline 41 and the air outlet pipeline 42, so that when the abutting member 22 abuts the opening of the pressure relief pipeline 43, a channel is left for the openings of the air inlet pipeline 41 and the air outlet pipeline 42, which is convenient for normal oxygen supply of the liquid oxygen oxygen supplier.

[0055] In some embodiments, the adjusting member 24 is a screw, and the screw is threadedly connected to the other end of the valve body 23.

[0056] In the embodiment, the screw is threadedly connected to the other end of the valve body 23, and the screw is rotated to adjust the elastic member 21, so as to adjust the corresponding safety pressure threshold of the safety valve 2, and the screw is convenient to disassemble and has low cost.

[0057] In some embodiments, the safety valve 2 further comprises a gasket ring 28 arranged between one end of the valve body 23 and the abutting piece 22.

[0058] In the embodiment, the gasket ring 28 can seal the gap between the valve body 23 and the abutting piece 22 to prevent oxygen leakage. Specifically, the gasket ring 28 is made of elastic material, facilitating the compression of the elastic piece 21 by the abutting piece 22.

[0059] In some embodiments, two safety valves 2 are arranged, and the pressure of the abutting piece 22 of the safety valve 2 close to the air inlet pipe 1 abutting on the opening of the pressure relief pipeline 43 is greater than the pressure of the abutting piece 22 of the safety valve 2 far from the air inlet pipe 1 abutting on the opening of the pressure relief pipeline 43.

[0060] In the embodiment, two safety valves 2 are arranged, and the pressure required for pressure relief of the two safety valves 2 is different. In a specific application scenario, the pressure of the abutting piece 22 of the safety valve 2 far from the air inlet pipe 1 abutting on the opening of the pressure relief pipeline 43 is a first pressure threshold, and the interval lower than the first pressure threshold is a better oxygen supply pressure for user experience. The pressure of the abutting piece 22 of the safety valve 2 close to the air inlet pipe 1 abutting on the opening of the pressure relief pipeline 43 is a second pressure threshold, and the pressure lower than the second pressure threshold is the maximum pressure for safe use of the liquid oxygen oxygen supplier. The safety valves 2 with different pressure relief pressures help to protect the liquid oxygen oxygen supplier and improve the user experience.

[0061] In a specific embodiment, the first pressure threshold is 80kpa, and the second pressure threshold is 150kpa.

[0062] The utility model also provides a liquid oxygen oxygen supplier, including liquid oxygen oxygen supplier body and combination valve above, liquid oxygen oxygen supplier body includes liquid oxygen tank and oxygen inhalation pipe, air inlet pipe 1 links together liquid oxygen tank, air outlet pipe 3 links together oxygen inhalation pipe.

[0063] In the embodiment of the utility model, the air inlet pipe 1 is connected to the liquid oxygen tank, the air outlet pipe 3 is connected to the oxygen inhalation pipe, and the air inlet pipeline 41 and the air outlet pipeline 42 are connected to the two ends of the safety valve 2. The other end of the abutting piece 22 of the safety valve 2 abuts on the opening of the pressure relief pipeline 43. When the internal pressure of the liquid oxygen oxygen supplier is too large, the internal pressure of the liquid oxygen oxygen supplier presses the abutting piece 22 to compress the elastic piece 21, thereby opening the pressure relief pipeline 43 to relieve the pressure of the liquid oxygen oxygen supplier, solving the problem that the existing liquid oxygen oxygen supplier cannot relieve pressure when the internal pressure is too large.

[0064] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A combination valve applied to a liquid oxygen oxygen supplier, characterized in that, The utility model relates to a combined valve, comprising: a gas inlet pipe, at least one safety valve and a gas outlet pipe connected in sequence; a mounting base comprising a gas inlet pipe, a gas outlet pipe and a pressure relief pipe; the gas inlet pipe is connected to the gas inlet pipe, the gas outlet pipe is connected to the gas outlet pipe, and the safety valve is arranged on the mounting base, and the bottom of the safety valve is respectively communicated with the gas inlet pipe, the gas outlet pipe and the pressure relief pipe; wherein the safety valve comprises an elastic member and an abutting member, one end of the abutting member abuts on the elastic member, and the other end abuts on the opening of the pressure relief pipe; the safety valve further comprises: a valve body provided with a mounting cavity, and one end of the valve body faces the abutting member; an adjusting member connected to the other end of the valve body, the elastic member is arranged in the mounting cavity, one end of the elastic member is connected to the adjusting member, and the other end abuts on one end of the abutting member.

2. The combination valve of claim 1, wherein the safety valve further comprises: a connecting seat connected to the other end of the elastic member, and the other end abuts on the abutting member.

3. The combination valve of claim 2, wherein, the safety valve further comprises: an abutting seat sleeved and connected outside the connecting seat, the abutting seat abuts on the abutting member, and a pressure member is arranged between the abutting seat and the connecting seat.

4. The combination valve of claim 1, wherein the mounting base further comprises: a mounting groove, the bottom of the mounting groove is communicated with the gas inlet pipe, the gas outlet pipe and the pressure relief pipe, and the safety valve is mounted in the mounting groove.

5. The combination valve of claim 4, wherein, The height of the opening of the pressure relief pipe relative to the bottom of the mounting groove is higher than the height of the openings of the gas inlet pipe and the gas outlet pipe relative to the bottom of the mounting groove.

6. The combination valve of claim 1, wherein, The adjusting member is a screw, and the screw is threadedly connected to the other end of the valve body.

7. The combination valve of claim 1, wherein, the safety valve further comprises: a grommet arranged between one end of the valve body and the abutting member.

8. The combination valve according to any one of claims 1-7, wherein, The safety valve is provided with two, and the pressure of the abutting member of the safety valve close to the gas inlet pipe abutting on the opening of the pressure relief pipe is greater than the pressure of the abutting member of the safety valve away from the gas inlet pipe abutting on the opening of the pressure relief pipe.

9. A liquid oxygen oxygen supply device characterized by comprising: The utility model relates to a combined valve, comprising: a liquid oxygen oxygen supplier body and the combined valve of any one of claims 1-8, the liquid oxygen oxygen supplier body comprising a liquid oxygen tank and an oxygen inhalation pipe, the gas inlet pipe is communicated with the liquid oxygen tank, and the gas outlet pipe is communicated with the oxygen inhalation pipe.

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