Built-in filling valve and liquid oxygen supply device

Abstract

The utility model discloses a built-in filling valve and a liquid oxygen supply device, the filling valve is used for filling liquid oxygen into the liquid oxygen supply device, the liquid oxygen supply device comprises a liquid oxygen tank and a vacuum tank which are arranged up and down, the filling valve is arranged in the vacuum tank and is communicated with the liquid oxygen tank through a filling pipe, and the filling valve comprises a valve body, a guide piece, a sliding shaft, a sealing piece and an elastic piece, the valve body is arranged in the vacuum tank, a mounting cavity is formed in the valve body, and the mounting cavity communicates with the filling pipe; the guide piece is arranged in the mounting cavity, and a guide hole is formed in the guide piece; the sliding shaft is arranged at one end, close to the liquid oxygen tank, of the mounting cavity, one end of the sliding shaft is axially provided with a mounting groove, and the other end is inserted into the guide hole; the sealing piece sleeves the other end of the sliding shaft and is propped against the inner wall of the guide hole; one end of the elastic piece is connected with the sliding shaft, and the other end of the elastic piece is connected with the end, close to the liquid oxygen tank, of the valve body. The capacity of the liquid oxygen tank is improved through the compact connection of the internal structure of the filling valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to oxygen supply device technical field, especially the built -in filling valve and liquid oxygen oxygen supply device of a kind of. BACKGROUND

[0002] With the increase of altitude on plateau, air oxygen content 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 body multi-functional disorder even endanger life.

[0003] Especially when engaged in field operation, with the increase of physical strength, more oxygen is consumed, which further aggravates the plateau hypoxia reaction, and physical fitness decreases significantly, and breathing is difficult.High altitude disease causes different degrees of harm to human body, and even causes death when oxygen is seriously insufficient.

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

[0005] However, the built-in filling valve of existing liquid oxygen oxygen supply device is not compact enough in structure, so that the filling valve occupies a large space, thereby causing the liquid oxygen tank capacity of liquid oxygen oxygen supply device to be small. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of built-in filling valve and liquid oxygen oxygen supply device, to solve the problem that the built-in filling valve of existing liquid oxygen oxygen supply device is not compact enough in structure, so that the liquid oxygen tank capacity is small.

[0007] To solve the above technical problem, the utility model aims at realizing by the following technical scheme: a kind of built-in filling valve, for filling liquid oxygen to liquid oxygen oxygen supply device, liquid oxygen oxygen supply device includes the liquid oxygen tank and vacuum tank arranged in the upper and lower, the built-in filling valve is arranged in vacuum tank, and is communicated liquid oxygen tank by filling pipe, including: valve body, guide piece, sliding shaft, sealing element and elastic element, the valve body is arranged in the vacuum tank, and the valve body is internally provided with installation cavity, and the installation cavity is communicated with the filling pipe;The guide piece is arranged in the installation cavity, and the guide piece is provided with guide hole;The sliding shaft is arranged in the installation cavity near liquid oxygen tank one end, and the sliding shaft one end is provided with installation slot along the axial direction, and the other end is inserted into the guide hole;The sealing element is sleeved on the other end of the sliding shaft, and abuts the inner wall of the guide hole;The elastic element is arranged in the installation slot in compression state, and one end of the elastic element is connected with the sliding shaft, and the other end is connected with the valve body near the liquid oxygen tank one end.

[0008] Further, the opening of the guide hole gradually decreases from the end close to the liquid oxygen tank to the end away from the liquid oxygen tank.

[0009] Further, the built-in filling valve further comprises a sealing washer, which is arranged in the mounting cavity and abuts against the inner side wall of the valve body at one end and abuts against the end of the guide close to the liquid oxygen tank at the other end.

[0010] Further, the built-in filling valve further comprises a plug, which is detachably connected to the end of the guide away from the liquid oxygen tank.

[0011] Further, the liquid oxygen oxygen supplier is connected to the built-in filling valve through the filling device, and the built-in filling valve further comprises a locking member, which is connected to the end of the mounting cavity away from the liquid oxygen tank and abuts against the plug, and the locking member is detachably connected to the filling device.

[0012] Further, the built-in filling valve further comprises a pull ring member, and the locking member is provided with a filling opening for the filling device to pass through, and the pull ring member is detachably connected to the filling opening.

[0013] Further, the inner side wall of the valve body is sequentially provided with a plurality of abutting grooves.

[0014] Further, the sliding shaft comprises a rebound part and a sealing part connected in sequence, the diameter of the rebound part is greater than that of the sealing part, the mounting groove is arranged in the rebound part, and the sealing member is connected to the sealing part.

[0015] Further, the built-in filling valve further comprises a fixing member, which is sleeved at the end of the sealing part away from the rebound part and abuts against the end of the sealing member away from the rebound part.

[0016] The utility model further provides a liquid oxygen oxygen supplier, including liquid oxygen oxygen supplier body, fills the pipe and the built-in filling valve as described above, the liquid oxygen oxygen supplier body includes the liquid oxygen tank and vacuum tank which set up up and down, the built-in filling valve sets up in vacuum tank, the filling pipe is connected built-in filling valve and liquid oxygen tank respectively.

[0017] The utility model discloses an inner built filling valve and liquid oxygen oxygen supply device, wherein, the inner built filling valve is used to fill liquid oxygen to liquid oxygen oxygen supply device, and the liquid oxygen oxygen supply device includes the liquid oxygen tank and vacuum tank of setting up, and the inner built filling valve is set in the vacuum tank, and is connected liquid oxygen tank through filling pipe, including: valve body, guide piece, sliding axle, sealing element and elastic element, the valve body sets up in the vacuum tank, and the valve body inside is provided with installation cavity, and installation cavity links filling pipe, guide piece sets up in the installation cavity, and guide piece is provided with guide hole, sliding axle sets up in the installation cavity one end close to liquid oxygen tank, and sliding axle one end is provided with installation slot along the axial direction, and the other end inserts guide hole, sealing element is set in the other end of sliding axle and abuts the inner wall of guide hole, and elastic element is set in installation slot in compression state, and elastic element one end is connected sliding axle, and the other end is connected valve body one end close to liquid oxygen tank, the utility model discloses through the compact connection of inner built filling valve internal structure to improve the capacity of liquid oxygen tank. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawing needed to be used in the embodiment description, obviously, the drawing in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0019] Figure 1 It is the explosion map of the first perspective of the inner built filling valve provided by the utility model embodiment;

[0020] Figure 2 It is the explosion map of the second perspective of the inner built filling valve provided by the utility model embodiment;

[0021] Figure 3 It is the structure schematic view of the first perspective of the inner built filling valve provided by the utility model embodiment;

[0022] Figure 4 It is the structure schematic view of the second perspective of the inner built filling valve provided by the utility model embodiment;

[0023] Figure 5 It is the structure schematic view of the third perspective of the inner built filling valve provided by the utility model embodiment;

[0024] Figure 6 It is the section view A-A provided by the utility model embodiment;

[0025] Figure 7 It is the structure schematic view of the fourth perspective of the inner built filling valve provided by the utility model embodiment;

[0026] Figure 8 It is the structure schematic view of the first perspective of the liquid oxygen oxygen supply device provided by the utility model embodiment;

[0027] Figure 9 The structure schematic view of the second visual angle of the liquid oxygen oxygen supplier provided by the embodiment of the utility model;

[0028] Figure 10 The cross-sectional view B-B provided by the embodiment of the utility model.

[0029] The identification in the figure is explained:

[0030] 1, valve body;11, installation cavity;12, abutment groove;

[0031] 2, guide;21, guide hole;

[0032] 3, sliding shaft;31, installation groove;32, rebound part;33, sealing part;34, fixing part;

[0033] 4, sealing part;

[0034] 5, elastic part;

[0035] 6, sealing washer;

[0036] 7, plug seal;

[0037] 8, locking part;81, filling port;

[0038] 9, pull ring part;

[0039] 10, liquid oxygen oxygen supplier body;101, liquid oxygen tank;102, vacuum tank;

[0040] 20, filling pipe;

[0041] 30, built-in filling valve. Specific implementation

[0042] The technical scheme in the embodiment of the utility model will be described clearly and completely below by combining with the drawings in the embodiment of the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0043] It should be understood that when used in the description and the appended claims, the terms "include" and "contain" indicate the existence of the described features, whole, step, operation, element and / or component, but do not exclude the existence or addition of one or more other features, whole, step, operation, element, component and / or set thereof.

[0044] It should also be understood that the terms used in the present utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the present utility model specification and the appended claims, unless otherwise clearly indicated by the context, the singular forms "a," "an," and "the" are intended to include the plural forms as well.

[0045] It should be further understood that the term "and / or" as used in the present 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.

[0046] In combination Figures 1-10 As shown in the accompanying drawings, the present utility model provides a built-in filling valve 30 for filling liquid oxygen to a liquid oxygen oxygen supplier, the liquid oxygen oxygen supplier includes a liquid oxygen tank 101 and a vacuum tank 102 arranged in an up-down mode, the built-in filling valve 30 is arranged in the vacuum tank 102 and is communicated with the liquid oxygen tank 101 through a filling pipe 20, and comprises a valve body 1, a guide piece 2, a sliding shaft 3, a sealing piece 4 and an elastic piece 5, the valve body 1 is arranged in the vacuum tank 102, and an installation cavity 11 is arranged in the valve body 1, and the installation cavity 11 is communicated with the filling pipe 20; the guide piece 2 is arranged in the installation cavity 11, and the guide piece 2 is provided with a guide hole 21; the sliding shaft 3 is arranged at one end of the installation cavity 11 close to the liquid oxygen tank 101, and an installation groove 31 is arranged at one end of the sliding shaft 3 in an axial direction, and the other end of the sliding shaft 3 is inserted into the guide hole 21; the sealing piece 4 is sleeved on the other end of the sliding shaft 3 and abuts against the inner wall of the guide hole 21; the elastic piece 5 is arranged in the installation groove 31 in a compressed state, one end of the elastic piece 5 is connected with the sliding shaft 3, and the other end of the elastic piece 5 is connected with one end of the valve body 1 close to the liquid oxygen tank 101.

[0047] In the embodiment of the utility model, liquid oxygen tank 101 is used for containing liquid oxygen, built-in filling valve 30 is arranged in vacuum tank 102, so that the filling of built-in filling valve 30 is stable, valve body 1 is arranged in vacuum tank 102, in combination with the design of mounting cavity 11, space can be effectively saved, and the overall structure is relatively compact;Guide 2 and guide hole 21 provide stable guide for sliding shaft 3, and ensure that sliding shaft 3 keeps correct moving direction during filling process;When filling liquid oxygen oxygen supply device, sliding shaft 3 moves along the direction of guide hole 21 of guide 2 towards connecting assembly, drives sealing element 4 away from guide hole 21, and makes elastic element 5 further compress, liquid oxygen flows into filling pipe 20 through mounting cavity 11, and flows into liquid oxygen cavity through filling pipe 20, after filling is completed, elastic element 5 rebounds and resets, drives sliding shaft 3 to reset, thereby driving sealing element 4 to abut the inner wall of guide hole 21, and preventing liquid oxygen in liquid oxygen cavity from flowing back. Through the close connection between the parts, the overall structure of the built-in filling valve 30 is relatively compact, the occupied space of the built-in filling valve 30 is reduced, and the capacity of the liquid oxygen tank 101 of the liquid oxygen oxygen supply device is improved. Specifically, the elastic element 5 is a spring, the spring has stable rebound, and the cost is relatively low.

[0048] In some embodiments, the opening of the guide hole 21 gradually decreases from the end close to the liquid oxygen tank 101 to the end away from the liquid oxygen tank 101.

[0049] In the embodiment, the guide hole 21 is inclined, and the opening gradually decreases from the end close to the liquid oxygen tank 101 to the end away from the liquid oxygen tank 101, which facilitates the abutment of the sealing element 4 to the inner wall of the guide hole 21.

[0050] In some embodiments, the built-in filling valve 30 further comprises a sealing gasket 6, the sealing gasket 6 is arranged in the mounting cavity 11, one end of the sealing gasket 6 abuts the inner side wall of the valve body 1, and the other end abuts the end of the guide 2 close to the liquid oxygen tank 101.

[0051] In the embodiment, the sealing gasket 6 is used to ensure the sealing of the mounting cavity 11, and to ensure that there is no leakage between the guide 2 and the valve body 1 when the liquid oxygen passes through the guide 2.

[0052] In some embodiments, the built-in filling valve 30 further comprises a plug seal 7, the plug seal 7 is detachably connected to the end of the guide 2 away from the liquid oxygen tank 101.

[0053] In the embodiment, the plug seal 7 is used to stabilize the guide 2, so that the guide 2 is stably abutted to the inner wall of the valve body 1, and the abutment of the sealing element 4 is prevented from being separated due to the sliding of the guide 2 along the inner wall of the valve body 1.

[0054] In some embodiments, the liquid oxygen oxygen supplier is filled by a filling device (not shown) through the built-in filling valve 30, and the built-in filling valve 30 further comprises a locking piece 8 connected to the end of the mounting cavity 11 away from the liquid oxygen tank 101 and abutting against the plug seal 7, and the locking piece 8 is detachably connected to the filling device.

[0055] In this embodiment, the locking piece 8 is used to fix the filling device, which ensures the stability of filling and effectively prevents the filling device from separating from the built-in filling valve 30.

[0056] In some embodiments, the built-in filling valve 30 further comprises a pull ring 9, and the locking piece 8 is provided with a filling port 81 for the filling device to pass through, and the pull ring 9 is detachably connected to the filling port 81.

[0057] In this embodiment, the pull ring 9 is detachably connected to the filling port 81, and when filling is needed, the pull ring 9 is removed, the filling device passes through the filling port 81 to fill the liquid oxygen oxygen supplier, and when filling is not needed, the pull ring 9 is installed to prevent dust and impurities from entering the built-in filling valve 30, thereby protecting the built-in filling valve 30.

[0058] In some embodiments, the inner wall of the valve body 1 is provided with a plurality of abutting grooves 12 in sequence.

[0059] In this embodiment, the abutting grooves 12 can precisely position each component and improve the sealing and stability of the structure of the entire built-in filling valve 30. Specifically, the opening diameter of the mounting cavity 11 gradually increases from the end close to the liquid oxygen cavity to the end away from the liquid oxygen cavity, and the opening diameter of the abutting groove 12 gradually increases from the end close to the liquid oxygen cavity to the end away from the liquid oxygen cavity, which facilitates the installation, disassembly and maintenance of the entire built-in filling valve 30.

[0060] In some embodiments, the mounting cavity 11 is provided with a filling hole 111, and the filling hole 111 communicates with the filling pipe 20.

[0061] In this embodiment, the filling hole 111 ensures the normal filling of liquid oxygen.

[0062] In some embodiments, the sliding shaft 3 comprises a rebound portion 32 and a sealing portion 33 connected in sequence, the diameter of the rebound portion 32 is greater than that of the sealing portion 33, the mounting groove 31 is formed in the rebound portion 32, and the sealing piece 4 is connected to the sealing portion 33.

[0063] In this embodiment, the diameter of the rebound portion 32 is greater than that of the sealing portion 33, which facilitates the connection of the sealing portion 33 to the sealing portion 33, and when the sealing portion 33 abuts against the guide hole 21, the sealing portion 33 abuts against the rebound portion 32 at the same time, so that the sealing property of the built-in filling valve 30 is better.

[0064] In some embodiments, the built-in filling valve 30 further comprises a fixing member 34 sleeved at one end of the sealing part 33 away from the resilient part 32, and abutting against one end of the sealing member 4 away from the resilient part 32.

[0065] In the embodiment, the fixing member 34 can prevent the sealing member 4 from being separated from the sliding shaft 3, and limit the movement path of the sealing member 4, so as to prevent the built-in filling valve 30 from causing the sealing member 4 to be deflected after multiple uses.

[0066] The utility model embodiment further provides a liquid oxygen oxygen supply device, including liquid oxygen oxygen supply device body 10, filling pipe 20 and above built-in filling valve 30, liquid oxygen oxygen supply device body 10 includes the liquid oxygen tank 101 and vacuum jar 102 set up up and down, built-in filling valve 30 sets up in vacuum jar 102, filling pipe 20 respectively communicates built-in filling valve 30 and liquid oxygen tank 101.

[0067] In the utility model embodiment, the built-in filling valve 30 is compact in overall structure through the close connection between the components, and the occupied space of the built-in filling valve 30 in the liquid oxygen oxygen supply device body 10 is reduced, so that the capacity of the liquid oxygen tank 101 of the liquid oxygen oxygen supply device is improved.

[0068] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of claims.

Claims

1. An inbuilt filling valve for filling liquid oxygen to a liquid oxygen supply device comprising a liquid oxygen tank and a vacuum tank arranged vertically, characterized in that, The built-in filling valve is arranged in the vacuum tank and communicates with the liquid oxygen tank through the filling pipe, comprising: a valve body arranged in the vacuum tank, and an installation cavity arranged in the valve body and communicating with the filling pipe; a guide arranged in the installation cavity, and a guide hole being formed in the guide; a sliding shaft arranged at one end of the installation cavity close to the liquid oxygen tank, and an installation slot being formed in one end of the sliding shaft in the axial direction, and the other end of the sliding shaft being inserted into the guide hole; a sealing member sleeved on the other end of the sliding shaft and abutting against the inner wall of the guide hole; a resilient member arranged in the installation slot in a compressed state, and one end of the resilient member being connected to the sliding shaft and the other end of the resilient member being connected to one end of the valve body close to the liquid oxygen tank.

2. The built-in fill valve of claim 1, wherein, The opening of the guide hole gradually decreases from the end close to the liquid oxygen tank to the end away from the liquid oxygen tank.

3. The built-in fill valve of claim 2, wherein, Further comprising: a sealing gasket arranged in the installation cavity, and one end of the sealing gasket abutting against the inner side wall of the valve body and the other end of the sealing gasket abutting against one end of the guide close to the liquid oxygen tank.

4. The built-in fill valve of claim 1, wherein, Further comprising: a plug seal detachably connected to the end of the guide away from the liquid oxygen tank.

5. The built-in filling valve according to claim 4, wherein the liquid oxygen supplier fills the built-in filling valve through the filling device. Further comprising: a locking member connected to the end of the installation cavity away from the liquid oxygen tank and abutting against the plug seal, and the locking member being detachably connected to the filling device.

6. The built-in fill valve of claim 5, wherein, Further comprising: a pull ring member provided with a filling opening for the filling device to pass through on the locking member, and the pull ring member being detachably connected to the filling opening.

7. The built-in fill valve of claim 1, wherein The inner side wall of the valve body is sequentially provided with a plurality of abutting grooves.

8. The built-in fill valve of claim 1, wherein, The sliding shaft comprises a resilient portion and a sealing portion connected in sequence, the diameter of the resilient portion is greater than the diameter of the sealing portion, the installation slot is formed in the resilient portion, and the sealing member is connected to the sealing portion.

9. The built-in fill valve of claim 8, wherein, Further comprising: a fixing member sleeved on the end of the sealing portion away from the resilient portion, and the fixing member abutting against the end of the sealing member away from the resilient portion.

10. A liquid oxygen oxygen supply device characterized by comprising: The liquid oxygen oxygen supplier body comprises a liquid oxygen tank and a vacuum tank arranged in sequence, the built-in filling valve is arranged in the vacuum tank, and the filling pipe respectively communicates with the built-in filling valve and the liquid oxygen tank.

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