CN111982381A

CN111982381A - Device for detecting and adjusting gas pressure in gas microenvironment

Info

Publication number: CN111982381A
Application number: CN202010813758.2A
Authority: CN
Inventors: 卓毅; 汪道全; 刘宏彪; 徐淑权; 白焘; 申展
Original assignee: No 59 Research Institute of China Ordnance Industry
Current assignee: No 59 Research Institute of China Ordnance Industry
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-24
Anticipated expiration: 2040-08-13
Also published as: CN111982381B

Abstract

The invention discloses a device for detecting and adjusting air pressure in a gas microenvironment. The invention provides a brand-new air pressure detecting and adjusting device, which is connected into a storage microenvironment, compared with the prior art, the instantaneity and the reliability of air pressure measurement are greatly improved, because the air pressure detecting and adjusting device is a mechanical device, compared with an electronic device, the invention eliminates all troubles and risks related to electricity utilization, and further improves the reliability and the convenience of use.

Description

Device for detecting and adjusting gas pressure in gas microenvironment

Technical Field

The invention relates to the technical field of air pressure regulation, in particular to a device for detecting and regulating air pressure in a gas microenvironment.

Background

With the large array of national equipment, more and more highly accurate equipment is required to be stored in warehouses for long periods of time, such as weapons.

For some high-precision weaponry, it is necessary to fill the storage microenvironment with nitrogen or dry air for sealed storage, so it is important to monitor the leak tightness of the weapon system in the storage microenvironment at any time to prevent the weapon system from failing due to air leakage and being unusable.

At present, the tightness of the weapon system in the storage process is mainly monitored by means of humidity indicating paper (the humidity in the outside air is high, and the humidity can cause the change of test paper after entering), an electronic pressure display, a pointer type pressure display and the like, and the monitoring means has the defects that:

1) the humidity indicating paper has certain delay, is not high in reliability and cannot display whether pressure exists in a microenvironment or not;

2) the electronic pressure display carries out pressure test by an electrical means, and has some defects of the electrical product, such as inaccurate test caused by overload, short circuit, unstable current and the like, low risk resistance of the electronic product, excessive 'gloomy', easy damage, spontaneous combustion risk when the battery is used, easy corrosion, need of replacing the battery at regular time or irregular time, troublesome operation, time and labor waste;

3) the traditional pointer type pressure display has too large volume, too much occupied space and inconvenient use.

In addition to the problems of use caused by the defects of the devices, the inflation pressurization and the deflation decompression are necessary operations when necessary in combination with the practical situation in storage, so that the device for the weapon storage seal is necessary, which can detect the air pressure and is convenient to operate by the inflation pressurization and the deflation decompression, and improves the convenience and practicability of the weapon system in the warehouse storage process.

Disclosure of Invention

In view of the problems of the prior art solutions described above, it is an object of the present invention to provide a device for the detection and regulation of gas pressure in a gas microenvironment.

The technical scheme of the invention is as follows: an apparatus for gas pressure detection and regulation in a gas microenvironment, comprising:

the storage device comprises a base body, wherein a cavity channel is arranged in the base body, four cavity channel ports communicated with the outside are arranged on the cavity channel, and one cavity channel port is used for being communicated with a storage microenvironment;

the pressure display comprises a valve body, a pipeline with two open ends is formed in the valve body, one end of the pipeline is connected to the other cavity port through the valve body and communicated into the cavity, a valve core is arranged in the pipeline in a sliding mode, one end of the valve core faces the cavity and is arranged in the pipeline, the other end of the valve core extends out of the pipeline, a window structure is arranged on the valve body in a sealing and sealing mode, a cavity is formed between the window structure and the valve body, the valve core extends into the cavity, and a mark used for observing the movement degree of the valve core is arranged on the window structure;

the inflation assembly comprises an inflation gas core, an inflation pipeline is formed in the inflation gas core, the outer opening end of the inflation pipeline is communicated with the outside to achieve inflation from the outside, the inner wall of the inflation pipeline forms a table top, the table top faces to the side direction opposite to the outer opening end of the inflation pipeline, an elastic part, a ball and a first sealing ring are further arranged in the inflation pipeline, the first sealing ring is arranged on the table top, the elastic part pushes the ball to press the first sealing ring to close the inflation pipeline, an inner opening end is formed on the inner wall of the inflation gas core and is connected to the other cavity opening through the inflation gas core to achieve communication between the cavity opening and the inflation pipeline, and the outer opening end and the inner opening end are respectively located on two sides of the first sealing ring;

and the air pressure relief mechanism is arranged to the other cavity opening to realize air relief.

Technical scheme more than adopting, the pedestal plays the effect of connecting, provides the chamber simultaneously and says to ventilate, through the setting of chamber way, can put through the microenvironment of inside storage and the part that is used for detecting pressure for inflatable part and the part that is used for the pressure release, wherein, the part that is used for detecting pressure is pressure display, is used for inflatable part to be the subassembly of aerifing, is used for the part of pressure release to atmospheric pressure release mechanism. In the pressure display, a valve body and a valve core are combined for use, the valve core is arranged in a pipeline of the valve body, one end facing to a cavity channel receives pushing of air pressure, the other end of the valve core extends into a window structure, and the end point position and the identification are matched together for use to read the degree of air pressure change. The cavity that forms between window structure and the valve body is convenient for the activity of case, and the window structure is convenient for inwards observe the tip change of case from the outside simultaneously, combines the sign can accurately obtain its relative quantity, comes as the quantization reading of atmospheric pressure change. In the inflation assembly, the cavity is inflated through the inflation air core, and then the cavity is inflated into the storage environment, specifically, the inflation is carried out through the outer opening end of the inflation pipeline, and the inner opening end enters the cavity. The elastic piece, the ball and the first sealing ring form a sealing structure on the inflation pipeline, and when no external inflation air pressure exists, the elastic piece pushes the ball to press the first sealing ring to realize sealing. When the inflatable ball bearing is inflated, external high-pressure gas is inflated through the outer opening end of the inflation pipeline, the ball is pushed to be separated from the first sealing ring by the high-pressure gas, the high-pressure gas enters the inflation pipeline close to one side of the inner opening end, then enters the cavity channel through the inner opening end and then enters a stored microenvironment through the cavity channel. When the air pressure in the storage microenvironment is too high and needs to be relieved, the air pressure is released through the air pressure relief mechanism, so that the air pressure in the storage microenvironment is balanced.

Furthermore, two second sealing rings are axially arranged on the valve core, the second sealing rings are tightly attached to the side wall of the pipeline to realize sealing, and the two second sealing rings are close to the cavity channel. In this optimization, realize sealed through set up the second sealing washer on the case, avoid leaking gas and influence the result of use. The second sealing ring is arranged on the valve core and close to the cavity channel, so that the distance between the second sealing ring and the cavity channel is shorter, and the second sealing ring is more sensitive to the change of air pressure in the cavity channel.

Furthermore, a return spring is sleeved on the valve core and positioned above the second sealing ring, one end of the return spring is fixed to the valve core, and the other end of the return spring is fixed to the inner wall of the pipeline. In this preferred, the action of valve core is reset through setting up reset spring, because atmospheric pressure is the change, when atmospheric pressure reduces, in order to avoid the valve core can't get back to the position before, through setting up reset spring, utilize its elasticity to help the valve core reset.

Furthermore, the window structure comprises an outer sleeve cover and a transparent window cap, the outer sleeve cover is connected to the valve body, the window cap is sleeved on the outer sleeve cover and exposed to the outside of the outer sleeve cover, the space formed inside the window cap and among the window cap, the outer sleeve cover and the valve body is used as the cavity, and the valve core extends into the window cap; the mark is a scale and is arranged on the window cap. In this preferred, provided a specific structure form of window structure, cover the shape through the overcoat and be connected to the valve body on, realize the fixed of setting, the window cap is convenient for outside inside and is watched, the change of contrast case.

Further, be provided with the third sealing washer in the cavity, just the third sealing washer sets up window cap with seal between the valve body is in order to realize between the two. In this preferred, seal through set up the third sealing washer between window cap and valve body to guarantee that outside gas can not get into.

Further, the inflatable air core is detachably arranged on the seat body. In this preference, production, assembly and replacement are facilitated by the detachable arrangement of the inflatable air core.

Further, the elastic component is a spring, the end part thread of the inflation gas core is provided with a limit bolt, the key groove of the limit bolt is exposed, and one end of the elastic component of the spring is abutted to one end, opposite to the key groove, of the limit bolt. In the preferred, select the spring as the elastic component, and connect to the spring through setting up spacing bolt, can adjust the elasticity effort of spring through the depth of adjusting spacing bolt to this atmospheric pressure threshold when adjusting aerifing.

Furthermore, a sealing cover is arranged on one side of the outer opening end of the inflatable air core in a matched mode. In the present optimization, the sealing cover is arranged to seal the outer opening end of the inflatable air core when not needed.

Furthermore, the air pressure relief mechanism is a nut and is in threaded connection with the cavity opening corresponding to the position. In the preferred, a nut is used as the air pressure relief mechanism, and the pressure is relieved by loosening the nut, so that the operation is convenient.

And the four cavity ports are arranged in a cross shape, connected to the pressure display and the two cavity ports of the inflation assembly, and connected with the air pressure relief mechanism, and the cavity ports communicated with the storage microenvironment are opposite in position. Through the relative setting in this optimization, to aerifing, can both the air current smooth and easy when atmospheric pressure detects and the pressure release.

Has the advantages that: the invention has novel concept, reasonable design and convenient use, and provides a brand new air pressure detecting and adjusting device, by connecting the device into a storage microenvironment, compared with the prior art, the instantaneity and the reliability of air pressure measurement are greatly improved, because the device is a mechanical device, compared with an electronic device, the invention eliminates all troubles and risks related to electricity utilization, and further improves the reliability and the convenience of use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structural view of an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional structural diagram of a pressure display according to an embodiment of the invention.

FIG. 4 is a cross-sectional structural schematic view of an inflation assembly in accordance with an embodiment of the present invention.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1-4, an apparatus for detecting and regulating the pressure in a gas microenvironment comprises a housing 100, a pressure display 200, an inflation assembly 300 and a pressure relief mechanism 400.

The housing 100 is provided with a channel 110 inside, and the channel 110 is provided with four channel openings communicated with the outside, and one of the channel openings is used for communicating with the storage microenvironment. As shown in fig. 2, a cavity opening opposite to the air pressure relief mechanism 400 is a cavity opening accessing into the storage microenvironment, as shown in fig. 2, according to the actual connection condition, the corresponding cavity opening on the seat body 100 is set to be a convex structural feature, and then the connection into the storage microenvironment is assisted by the structure of the connection sleeve 500. The connection sleeve 500 is connected to the base 100 by a screw, in order to ensure the sealing performance, a table top is provided on the base 100, and a fourth sealing ring 600 is provided on the table top, when the connection sleeve 500 is installed on the base 100, the fourth sealing ring 600 is pressed to realize the sealing.

The pressure display 200 comprises a valve body 210, a pipeline 211 with two open ends is formed in the valve body 210, one end of the pipeline 211 is connected to the other cavity port through the valve body 210 and communicated with the cavity 110, a valve core 220 is arranged in the pipeline 211 in a sliding mode, one end of the valve core 220 faces the cavity 110 and is arranged in the pipeline 211, the other end of the valve core 220 extends out of the pipeline 211, a window structure 230 is arranged on the valve body 210 in a sealing and sealing mode, a cavity is formed between the window structure 230 and the valve body 210, the valve core 220 extends into the cavity, and a mark used for observing the moving degree of the valve core 220 is arranged on the window structure 230. Preferably, two second sealing rings 240 are axially disposed on the valve core 220, and the second sealing rings 240 are tightly attached to the side wall of the pipe 211 to realize sealing, and the two second sealing rings 240 are close to the cavity 110. Preferably, the valve core 220 is sleeved with a return spring 250, the return spring 250 is located above the second sealing ring 240, and one end of the return spring 250 is fixed to the valve core 220 and the other end is fixed to the inner wall of the pipe 211. Preferably, the window structure 230 includes an outer cover 231 and a transparent window cap 232, the outer cover 231 is connected to the valve body 210, the window cap 232 is sleeved on the outer cover 231 and exposed to the outside of the outer cover 231, the inside of the window cap 232 and the space formed between the window cap 232, the outer cover 231 and the valve body 210 are used as cavities, and the valve core 220 extends into the window cap 232; marked as a scale and disposed on the window cap 232. Preferably, a third sealing ring 233 is disposed in the cavity, and the third sealing ring 233 is disposed between the window cap 232 and the valve body 210 to seal therebetween. As shown in fig. 2 and fig. 3, the window cap 232 and the outer casing 231 are mutually fastened, and the outer casing 231 may be connected to the valve body 210 in a threaded manner in specific implementation, in order to ensure air tightness of the connection, the valve body 210 may also be provided with a plastic sleeve, and an external thread is provided thereon, through which the outer casing 231 is connected. As shown in fig. 2, the valve body 210 of the pressure display 200 extends into the corresponding cavity opening of the seat body 100, and in particular, a threaded connection may be adopted, and in order to ensure the stability of the connection and have a considerable sealing capability, a plastic threaded sleeve 700 is provided in the corresponding cavity opening, an internal thread is provided on the plastic threaded sleeve 700, and correspondingly, the valve body 210 is provided with an external thread, and the two are connected by a thread fit. Meanwhile, in order to ensure the accuracy of the valve element 220 in indicating the change of the air pressure, the valve element 220 is formed with a pointed end at an end portion extending into a section of the window cap 232. In particular, for night vision, a striking sleeve with fluorescent function may be sleeved on the end of the valve core 220 extending into the window cap 232. The eye-catching sleeve can be made of plastic, and fluorescent materials are arranged in the plastic. In a specific implementation, the conduit 211 may be configured as a stepped hole structure, which is divided into three segments, as shown in fig. 3, a thinnest segment near the window cap 232 and a thickest segment near the channel 110. The two second sealing rings 240 are arranged in the thickest section, a ring table is arranged on the valve core 220, and the two second sealing rings 240 are respectively arranged on two side surfaces of the ring table, so that double insurance is realized, and the air tightness effect is improved. As shown in fig. 3, the return spring 250 is urged against by a land formed on the spool 220, and the other end is urged against a land between the narrowest and middle sections of the conduit 211. A gap is reserved between the middle section and the return spring 250 to ensure that the movement of the return spring 250 is not interfered, and meanwhile, the inner diameter of the thinnest section is equivalent to the outer diameter width of the corresponding position on the valve core 220 to ensure the linearity of the movement of the valve core 220. As shown in fig. 2, in order to ensure good adhesion and sealing performance at the joint, the lower portion of the valve body 210 is configured as a "T" shape, a thin section thereof is provided with external threads and extends into the plastic thread sleeve 700, and meanwhile, a thick section thereof naturally forms a table surface facing the seat body 100, and a fifth sealing ring 800 is provided between the table surface and the seat body 100 to ensure the air tightness after connection. For the stability of the fifth sealing ring 800, a groove is correspondingly formed on the housing 100 for placing the fifth sealing ring 800. Through rationally setting up the recess to and select for use the fifth sealing washer 800 of suitable deformation volume, when the valve body 210 is when installing, can form fine leakproofness through oppression fifth sealing washer 800, the mesa downwards of the formation of valve body 210 lower part also can laminate to on the pedestal 100 simultaneously, in order to realize the compactness of connecting.

The inflation assembly 300 includes an inflation core 310, an inflation pipeline 311 is formed in the inflation core 310, an outer opening end 314 of the inflation pipeline 311 is connected to the outside to realize inflation from the outside, and an inner wall of the inflation pipeline 311 forms a table 312, the table 312 faces a direction opposite to a side of an outer opening end 314 of the inflation pipeline 311, an elastic member 320, a ball 330 and a first sealing ring 340 are further arranged in the inflation pipeline 311, the first sealing ring 340 is arranged on the table 312, the elastic member 320 pushes the ball 330 to press on the first sealing ring 340 to seal the inflation pipeline 311, an inner opening end 313 is formed on the inner wall of the inflation core 310, the inner opening end 313 is connected to another opening through the inflation core 310 to realize connection between the cavity 110 and the inflation pipeline 311, and the outer opening end 314 and the inner opening end 313 are respectively located on two sides of the first sealing ring 340. Preferably, the inflating air core 310 is detachably disposed on the seat body 100. As shown in fig. 2 and fig. 4, in order to make the arrangement of the inflatable air core 310 stable enough and the air tightness good enough, a table top facing the seat body 100 is formed on the inflatable air core 310 by protruding in the circumferential direction, and a sixth sealing ring 900 is arranged between the table top and the seat body 100; meanwhile, in order to stably arrange the sixth sealing ring 900, a groove for placing the sixth sealing ring 900 is provided at a corresponding position on the housing 100. Preferably, the elastic member 320 is a spring, and the end of the gas core 310 is threaded with the limit bolt 315, the key slot of the limit bolt 315 is exposed, and one end of the elastic member 320 of the spring abuts against the end of the limit bolt 315 opposite to the key slot. As shown in fig. 2 and 4, the limiting bolt 315 is disposed at one end of the inflatable core 310 extending into the cavity 110, one end of the elastic member 320 abuts against one end of the inner side of the limiting bolt 315, and the other end abuts against the ball 330. By loosening the stopper bolt 315, the elastic member 320 as a spring is loosened, and accordingly the force of the first seal ring 340 against the first seal ring via the ball 330 becomes small, and the threshold value of the inflation pressure is lowered, and conversely, by screwing the stopper bolt 315, the force of the elastic member 320 against the first seal ring 340 via the ball 330 becomes large, and the threshold value of the inflation pressure is raised, and by this adjustment, the threshold value of the inflation pressure can be determined by the change in the elastic force of the elastic member 320. Preferably, a sealing cover 350 is disposed on the side of the outer opening end 314 of the inflatable core 310. In order to ensure airtightness and impact resistance, the sealing cap 350 may be made of metal, and may be screwed to the pneumatic core 310 through a threaded sleeve (the sealing cap 350 is screwed to the threaded sleeve, and the threaded sleeve is fixed to the outer circumference of the pneumatic core 310), in which case, a rubber packing is also provided between the pneumatic core 310 and the sealing cap 350 to enhance airtightness.

A pneumatic pressure relief mechanism 400 is provided to the other lumen port to effect deflation and pressure relief. Preferably, the pneumatic pressure releasing mechanism 400 is a nut and is screwed with the corresponding cavity port. As shown in fig. 2, in order to ensure airtightness, a packing is also provided between the nut for pressure relief and the housing 100. In a specific implementation, each of the sealing rings may be a rubber sealing ring. The nut is adopted as the air pressure relief mechanism, the characteristics of threads can be utilized, slow tightness adjustment is realized, and the 'strength' of pressure relief is easier to master for fine adjustment type pressure relief.

Preferably, the four cavity ports are arranged in a cross shape, and the two cavity ports connected to the pressure display 200 and the inflation assembly 300 are opposite to each other, and the cavity port connected to the air pressure relief mechanism 400 is opposite to the cavity port communicated with the storage microenvironment.

According to the specific embodiments, the device provided by the invention is used for a weapon storage system, is designed for the problems of air pressure and air tightness of a storage environment, and has three functions of air pressure reading, air inflation and pressure relief. Taking the case that a high-pressure nitrogen gas is required to be filled in the storage environment of a certain weapon, for example, the internal nitrogen gas pressure is two atmospheres, and the tip of the valve element 220 on the pressure display 200 indicates the corresponding scale (two atmospheres) in the state of good sealing performance. If air leakage exists, the valve core 220 moves downwards to be lower than the corresponding scale mark, and the air pressure is insufficient. The pressure display 200 is a mechanical structure, and has good stability of air pressure display, good instantaneity and convenient reading. Under the condition that atmospheric pressure is not enough, aerify through inflatable component 300, the atmospheric pressure threshold value of inflatable component 300 self work can be adjusted through spacing bolt 315, can carry out the adaptation according to the inside atmospheric pressure of difference for the adaptation scope of whole device is bigger, and in the same way, reset spring 250 and the second sealing washer 240 in the pressure display 200 chose for use, also can control the atmospheric pressure measuring scope, in order to realize the matching of adaptation scope through the selection of accessory. The device integrates three functions, and the three functions can be used independently and mutually matched, for example, because the pressure display 200 is close to the inflation assembly 300 and has opposite positions, the instantaneous air pressure can be directly read during inflation; when the inflation air pressure is too high, the pressure can be quickly released through the air pressure releasing mechanism 400, so that the influence on the internal storage environment is avoided; under some operations, the air inflation and the pressure relief can be operated simultaneously to form a dynamic balance (the control of the inflation air pressure value and the control of the pressure relief 'strength'), so that the requirement of slow ventilation in the interior is met.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. An apparatus for gas pressure detection and regulation in a gas microenvironment, comprising:

the storage device comprises a base body (100), wherein a cavity (110) is arranged inside the base body (100), four cavity ports communicated with the outside are formed in the cavity (110), and one cavity port is used for being communicated with a storage microenvironment;

the pressure display (200) comprises a valve body (210), a pipeline (211) with two open ends is formed in the valve body (210), one end of the pipeline (211) is connected to the other cavity port through the valve body (210) and communicated into the cavity (110), a valve core (220) is arranged in the pipeline (211) in a sliding mode, one end of the valve core (220) faces the cavity (110) and is arranged in the pipeline (211), the other end of the valve core extends out of the pipeline (211), a window structure (230) is arranged on the valve body (210) in a sealing and sealing mode, a cavity is formed between the window structure (230) and the valve body (210), the valve core (220) extends into the cavity, and a mark for observing the moving degree of the valve core (220) is arranged on the window structure (230);

inflation assembly (300), inflation assembly (300) is including aerifing gas core (310), be formed with gas tube (311) in gas tube (310), the outer port end switch-on of gas tube (311) is outside in order to realize aerifing from the outside, just the inner wall of gas tube (311) forms a mesa (312), this mesa (312) towards with the outer port end opposite side direction of gas tube (311), still be provided with elastic component (320), ball (330) and first sealing washer (340) in gas tube (311), first sealing washer (340) set up on mesa (312), just elastic component (320) promote ball (330) oppress on first sealing washer (340) with to aerifing pipeline (311) and close gas, be formed with the internal orifice end on the inner wall of gas core (310), and this internal orifice end passes through gas tube (310) and is connected to another the road junction chamber is in order to realize switching on chamber way (110) The outer opening end and the inner opening end are respectively positioned on two sides of the first sealing ring (340);

and the air pressure relief mechanism (400), and the air pressure relief mechanism (400) is arranged to the other cavity opening to realize air relief and pressure relief.

2. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: two second sealing rings (240) are axially arranged on the valve core (220), the second sealing rings (240) are tightly attached to the side wall of the pipeline (211) to realize sealing, and the two second sealing rings (240) are close to the cavity (110).

3. The apparatus of claim 2, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: the valve core (220) is sleeved with a return spring (250), the return spring (250) is positioned above the second sealing ring (240), one end of the return spring (250) is fixed to the valve core (220), and the other end of the return spring is fixed to the inner wall of the pipeline (211).

4. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: the window structure (230) comprises an outer sleeve cover (231) and a transparent window cap (232), the outer sleeve cover (231) is connected to the valve body (210), the window cap (232) is sleeved on the outer sleeve cover (231) and exposed to the outside of the outer sleeve cover (231), the space formed inside the window cap (232) and among the window cap (232), the outer sleeve cover (231) and the valve body (210) serves as the cavity, and the valve core (220) extends into the window cap (232); the marks are scales and are arranged on the window cap (232).

5. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: a third sealing ring (233) is arranged in the cavity, and the third sealing ring (233) is arranged between the window cap (232) and the valve body (210) to realize sealing between the window cap and the valve body.

6. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: the inflatable air core (310) is detachably arranged on the seat body (100).

7. The apparatus of claim 6, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: the elastic piece (320) is a spring, the end part thread of the inflatable air core (310) is provided with a limiting bolt (315), a key groove of the limiting bolt (315) is exposed, and one end of the elastic piece (320) which is the spring is abutted to one end, opposite to the key groove, of the limiting bolt (315).

8. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: a sealing cover (350) is arranged on one side of the outer opening end of the inflatable air core (310) in a matched mode.

9. The apparatus of claim 1, wherein the gas sensor is configured to sense and regulate a gas pressure in the microenvironment: the air pressure relief mechanism (400) is a nut and is in threaded connection with the cavity opening corresponding to the position.

10. The apparatus for detection and regulation of gas pressure in a gas microenvironment of any one of claims 1-9, wherein: the four cavity mouths are arranged in a cross shape and are connected to two of the pressure display (200) and the inflation assembly (300), the cavity mouths are opposite in position, and the cavity mouths which are connected with the air pressure relief mechanism (400) are opposite in position to the cavity mouths which are communicated with the storage microenvironment.