Liquid oxygen storage emptying valve and liquid oxygen storage equipment

Abstract

The utility model discloses a liquid oxygen storage emptying valve and liquid oxygen storage equipment, which comprises an emptying air guide structure respectively communicated and connected with a liquid oxygen container and the outside of the liquid oxygen container; the valve body piston structure comprises a valve body assembling seat and a driving valve core; the valve body assembling seat is correspondingly connected and positioned between the liquid oxygen container and the outside of the liquid oxygen container through a built-in channel, and the built-in channel of the valve body assembling seat is provided with an inclined sealing conical surface; the driving valve element is assembled in the valve body assembling seat in a sliding mode, a conical surface sealing cushion block is fixedly connected to one end of the driving valve element, the conical surface sealing cushion block and the sealing conical surface are connected in a separable contact and butt joint mode, and therefore the conical surface sealing cushion block is matched with the sealing conical surface to form conical surface sealing contact; and the valve element return spring is arranged in the valve body assembling seat, and the valve element return spring supports and drives the valve element and the conical surface sealing cushion block to be in butt joint with the sealing conical surface through the elastic effect. The problems that in the prior art, a liquid oxygen storage emptying valve is tedious and time-consuming in operation, and liquid oxygen loss is prone to being generated are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of oxygen storage equipment, and more specifically, to a liquid oxygen storage venting valve and a liquid oxygen storage device. Background Technology

[0002] With increasing emphasis on health and emergency response, the demand for oxygen is growing in medical settings, outdoor adventures, and high-altitude travel. Common liquid oxygen storage containers are typically equipped with filling valves and venting valves. The primary function of the venting valve is to release pressure within the container to a safe level under specific circumstances, preventing dangerous situations caused by excessive pressure. For example, during liquid oxygen filling, equipment maintenance, or when abnormal pressure increases occur, the venting valve can be opened to release a certain amount of gas (mainly gaseous oxygen) for pressure regulation, ensuring operational safety.

[0003] In the existing technology, the valve body channel of the liquid oxygen storage vent valve is generally sealed by tightening a threaded plug. Although it can meet the closure requirements to a certain extent, it still has the disadvantages of being cumbersome and time-consuming in operation, as well as causing liquid oxygen loss during operation, which is not conducive to the convenience and economy of liquid oxygen storage. Utility Model Content

[0004] To address this issue, the present invention provides a liquid oxygen storage vent valve and a liquid oxygen storage device, thereby solving the problems of cumbersome and time-consuming operation of existing liquid oxygen storage vent valves and the easy loss of liquid oxygen.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A liquid oxygen storage vent valve, comprising:

[0007] The venting and gas guiding structure is connected to the liquid oxygen container and its external environment respectively;

[0008] The valve body piston structure includes a valve body mounting seat and a drive valve core;

[0009] The valve body assembly seat is connected to the liquid oxygen container and its exterior via a built-in channel, and the built-in channel of the valve body assembly seat is provided with an oblique sealing cone surface; the drive valve core is slidably assembled inside the valve body assembly seat, and a conical sealing gasket is fixedly connected to one end of the drive valve core. The conical sealing gasket and the sealing cone surface are detachably press-fitted and connected to form a conical sealing contact by means of the conical sealing gasket and the sealing cone surface.

[0010] A valve core return spring is disposed inside the valve body mounting seat, and the valve core return spring elastically supports the drive valve core and the conical sealing gasket in contact with the sealing conical surface. Based on the above technical solution, the present invention is further described as follows:

[0011] As a further embodiment of this utility model,

[0012] The venting structure includes a venting chamber seat, an air receiving end, and an exhaust end;

[0013] The air guide cavity seat has an air guide cavity inside, and the side ends of the air guide cavity seat have an air inlet end and an exhaust end that are connected to the air guide cavity.

[0014] The gas inlet end is connected to the gaseous oxygen region at the top of the liquid oxygen container as an air inlet, and the exhaust end is used as an exhaust port to connect to the outside of the liquid oxygen container during venting.

[0015] As a further embodiment of this utility model,

[0016] The valve body piston structure includes an air guide tube body;

[0017] The valve body assembly seat and the air guide cavity seat body are fixedly assembled and connected.

[0018] The two ends of the air guide tube are respectively connected to the air receiving end and the valve body assembly seat. The air receiving end is connected to the exhaust end in a closed manner through the air guide tube and the valve body assembly seat.

[0019] As a further embodiment of this utility model,

[0020] The sealing cone surface is located on the inner wall of the valve body assembly seat near one end of the air guide tube.

[0021] As a further embodiment of this utility model,

[0022] The valve body piston structure also includes a spring limiting protrusion;

[0023] The spring limiting protrusion is fixedly connected to the outer side of the drive valve core, and the spring limiting protrusion is slidably assembled inside the valve body assembly seat.

[0024] The valve core return spring is sleeved on the outer side of the drive valve core, and the valve core return spring is correspondingly located between the spring limiting protrusion and the inner wall of the valve body assembly seat.

[0025] As a further aspect of this utility model, it also includes:

[0026] The self-returning drive push plate is configured as a tension spring type drive push plate structure, which is used to connect and transmit power to the other end of the drive valve core so as to generate tension on the drive valve core.

[0027] As a further embodiment of this utility model,

[0028] The bottom end of the tension spring type drive push plate structure is connected to the other end of the drive valve core by a transition assembly, and the tension spring of the tension spring type drive push plate structure is connected to the outer wall of the valve body assembly seat for limiting connection, so as to use the limiting effect of the tension spring to act as a lever fulcrum.

[0029] As a further embodiment of this utility model,

[0030] The outer wall of the drive valve core is also fitted with a valve body sealing ring.

[0031] The valve body sealing ring is press-fitted with the inner wall of the valve body mounting base for sealing.

[0032] A liquid oxygen storage device, including the aforementioned liquid oxygen storage vent valve.

[0033] As a further embodiment of this utility model,

[0034] The air guide cavity seat is also provided with a liquid extraction pipeline channel.

[0035] The liquid oxygen storage device also includes:

[0036] The liquid extraction and delivery tube extends through the air guide cavity seat based on the liquid extraction pipeline channel.

[0037] This utility model has the following beneficial effects:

[0038] This device can effectively drive the valve body piston structure through the self-returning drive push plate to overcome the elasticity of the valve core return spring, so that the gas venting channel corresponding to the venting guide structure can be opened and closed in a controllable manner. This improves the ease of operation during venting and significantly enhances the sealing performance of the venting guide structure in the closed state, reduces liquid oxygen loss, and improves the overall functionality and practicality. Attached Figure Description

[0039] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0040] Figure 1 This is an isometric structural diagram of the liquid oxygen storage venting valve provided in Embodiment 1 of this utility model, corresponding to one side.

[0041] Figure 2 This is an isometric structural diagram of the liquid oxygen storage venting valve provided in Embodiment 1 of this utility model, corresponding to the other side.

[0042] Figure 3 This is a schematic diagram of the internal structure of the liquid oxygen storage venting valve provided in Embodiment 1 of this utility model.

[0043] Figure 4 This is an isometric structural diagram of the liquid oxygen storage venting valve provided in Embodiment 2 of this utility model.

[0044] The attached diagram lists the components represented by each number as follows:

[0045] Air venting structure 1: air venting chamber seat 11, air receiving end 12, air venting end 13, liquid lifting pipeline channel 14;

[0046] Valve body piston structure 2: valve body mounting seat 21, air guide pipe body 22, sealing cone surface 23, drive valve core 24, cone surface sealing pad 25, spring limiting protrusion 26;

[0047] 3. Valve core return spring; 4. Self-return drive push plate; 5. Liquid lifting and conveying tube body;

[0048] Air guiding direction a; downward pulling force F. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0051] Example 1

[0052] like Figures 1 to 3 As shown, this utility model embodiment provides a liquid oxygen storage venting valve and a liquid oxygen storage device including the liquid oxygen storage venting valve. The liquid oxygen storage venting valve includes a venting guide structure 1, a valve body piston structure 2, a valve core return spring 3, and a self-returning drive push plate 4. This allows the self-returning drive push plate 4 to effectively drive the valve body piston structure 2 to overcome the elasticity of the valve core return spring 3, enabling the gas venting channel corresponding to the venting guide structure 1 to simultaneously achieve controllable opening and closing. This improves the operational convenience during venting operations and significantly enhances the sealing performance of the venting guide structure 1 in the closed state, reducing liquid oxygen loss and improving overall functionality. Specific settings are as follows:

[0053] Please refer to Figures 1 to 3 The venting and guiding structure 1 includes a guiding cavity seat 11, a gas receiving end 12, and a gas exhaust end 13. The guiding cavity seat 11 has a guiding cavity inside, and the side ends of the guiding cavity seat 11 have a gas receiving end 12 and a gas exhaust end 13 that are connected to the guiding cavity. The gas receiving end 12 is connected to the gaseous oxygen region above the liquid oxygen container as an air inlet, and the gas exhaust end 13 is used as an exhaust port during venting.

[0054] Please continue to refer to this. Figure 3The valve body piston structure 2 includes a valve body mounting seat 21, an air guide pipe body 22, a sealing cone surface 23, a drive valve core 24, a cone surface sealing gasket 25, and a spring limiting protrusion 26; wherein, the valve body mounting seat 21 is fixedly connected to the air guide chamber seat 11; the two ends of the air guide pipe body 22 are respectively connected to the air receiving end 12 and the valve body mounting seat 21, and the air receiving end 12 is connected to the exhaust gas via the air guide pipe body 22 and the valve body mounting seat 21 in sequence. The ends 13 can be connected in a closed manner; the inner wall of the channel of the valve body mounting base 21 is set as an inclined sealing cone surface 23 at one end near the air guide tube body 22; the drive valve core 24 is slidably mounted inside the valve body mounting base 21, and a conical sealing gasket 25 is fixedly connected to one end of the drive valve core 24. The conical sealing gasket 25 and the sealing cone surface 23 are detachably pressed and connected, so as to form a conical seal by the conical sealing gasket 25 and the sealing cone surface 23. The spring limiting protrusion 26 is fixedly connected to the outer periphery of the drive valve core 24, and the spring limiting protrusion 26 is slidably assembled inside the valve body assembly seat 21; the valve core return spring 3 is sleeved on the outer periphery of the drive valve core 24, and the valve core return spring 3 is correspondingly located between the spring limiting protrusion 26 and the inner wall of the valve body assembly seat 21, so as to effectively press the spring limiting protrusion 26 and the drive valve core 24 against the valve body assembly seat 21 by means of the rebound action of the valve core return spring 3. The core 24 allows the drive valve core 24 to continue pressing against the conical sealing pad 25, maintaining a contact seal between it and the sealing conical surface 23, thus forming a spring-pressed seal. At the same time, when the drive valve core 24 is subjected to a downward pulling force F from the self-returning drive push plate 4, the drive valve core 24 and the spring limiting protrusion 26 can overcome the rebound force of the valve core return spring 3 and drive the conical sealing pad 25 to release the spring-pressed seal, thereby effectively realizing the conduction of the exhaust air path along the air guiding direction a, improving the functionality and practicality.

[0055] Please continue to refer to this. Figure 1 and Figure 2 The self-returning drive push plate 4 is configured as a tension spring type drive push plate structure. The bottom end of the tension spring type drive push plate structure is connected to the other end of the drive valve core 24 by a transition assembly. The tension spring of the tension spring type drive push plate structure is connected to the outer wall of the valve body assembly seat 21 for limiting connection, so as to use the limiting effect of the tension spring to act as a lever fulcrum.

[0056] As a preferred embodiment, the outer wall of the drive valve core 24 is also fitted with a valve body sealing ring, which is pressed and sealed with the inner wall of the valve body mounting seat 21 to prevent the exhaust gas from leaking from the valve body piston structure 2, thereby ensuring the overall exhaust efficiency.

[0057] Example 2

[0058] In Example 2, the same symbols are used for the same structures as in Example 1, and the same descriptions are omitted. Example 2 is an improvement on Example 1. Please refer to [link / reference needed]. Figure 4 The liquid oxygen storage device also includes a liquid extraction and delivery conduit 5, and the gas delivery chamber seat 11 is further provided with a liquid extraction pipeline channel 14. The liquid extraction and delivery conduit 5 extends through the gas delivery chamber seat 11 based on the liquid extraction pipeline channel 14, so that the liquid oxygen transported inside the liquid extraction and delivery conduit 5 can pass through the gas environment inside the gas delivery chamber seat 11, thereby reducing heat loss during the liquid oxygen transport process. At the same time, the liquid extraction and delivery conduit 5 and the gas delivery chamber seat 11 can be integrated into a single design, effectively reducing the overall space occupied by the structure.

[0059] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A liquid oxygen storage vent valve characterized by, It comprises: The emptying air guide structure is respectively connected with the liquid oxygen container and its outside; The valve body piston structure comprises a valve body assembly seat and a driving valve core; The valve body assembly seat is correspondingly connected between the liquid oxygen container and its outside through the built-in channel, and the built-in channel of the valve body assembly seat is provided with a slanting sealing cone surface; the driving valve core is slidingly assembled in the interior of the valve body assembly seat, and one end of the driving valve core is fixedly connected with a conical sealing pad block, which is in separable contact with the sealing cone surface, so that the conical sealing pad block cooperates with the sealing cone surface to form a conical sealing contact; The valve core return spring is arranged in the interior of the valve body assembly seat, and the valve core return spring supports the driving valve core and the conical sealing pad block in contact with the sealing cone surface through elastic action.

2. The liquid oxygen storage emptying valve according to claim 1, wherein The emptying air guide structure comprises an air guide cavity seat body, an air inlet end and an air outlet end; The interior of the air guide cavity seat body is provided with an air guide cavity, and the side end of the air guide cavity seat body is respectively provided with the air inlet end and the air outlet end which are connected with the air guide cavity; The gaseous oxygen area on the upper part of the liquid oxygen container is connected with the air inlet end as an air inlet port, and the air outlet end is connected with the outside of the liquid oxygen container as an air outlet port during emptying.

3. The liquid oxygen storage emptying valve according to claim 2, wherein The valve body piston structure comprises a gas guide pipe body; The valve body assembly seat and the air guide cavity seat body are fixedly and assembledly connected; The two ends of the gas guide pipe body are respectively connected with the air inlet end and the valve body assembly seat, and the air inlet end is connected with the air outlet end through the gas guide pipe body and the valve body assembly seat.

4. The liquid oxygen storage emptying valve according to claim 3, wherein The sealing cone surface is arranged on the inner wall of the channel of the valve body assembly seat near one end of the gas guide pipe body.

5. The liquid oxygen storage emptying valve according to claim 3, wherein The valve body piston structure further comprises a spring limiting boss; The spring limiting boss is fixedly connected with the peripheral side of the driving valve core, and is slidingly assembled in the interior of the valve body assembly seat; The valve core return spring is sleeved on the peripheral side of the driving valve core, and is arranged between the spring limiting boss and the inner wall of the valve body assembly seat.

6. The LOX storage vent valve of claim 1, wherein, Further comprising: The self-return driving push plate is arranged as a tension spring type driving push plate structure, and is transmissionally and assembledly connected with the other end of the driving valve core, so as to form a tension force on the driving valve core.

7. The liquid oxygen storage emptying valve according to claim 6, wherein The bottom end of the pull spring type drive push plate structure is connected and arranged with the other end of the drive valve core through adapter assembly, and the pull spring part of the pull spring type drive push plate structure is limitingly connected and arranged with the outer wall of the valve body assembly seat, so as to play the role of lever fulcrum by the limiting action of the pull spring part.

8. The liquid oxygen storage and venting valve according to claim 1, characterized in that, The outer wall of the drive valve core is further sleeved with a valve body sealing ring; The valve body sealing ring is in contact pressure and sealing connection with the inner wall of the valve body assembly seat.

9. A liquid oxygen storage apparatus characterized by comprising: The liquid oxygen storage and venting valve according to any one of claims 1-8.

10. The liquid oxygen storage device according to claim 9, characterized in that, The gas guide cavity seat body is further provided with a liquid lifting pipeline channel; The liquid oxygen storage device further comprises: A liquid lifting delivery pipe body extends through the gas guide cavity seat body based on the liquid lifting pipeline channel.

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