CN220119135U - Inflation, evacuation and automatic pressure relief device - Google Patents

Abstract

The utility model discloses an inflation emptying and automatic pressure relief device, wherein an inflation connector is connected with an external large gas cylinder to inflate a small gas cylinder, a wire rod pull ring is rotated anticlockwise to ninety degrees, a sealing ring is pulled up by the wire rod pull ring to break away from sealing of a plugging port, liquid gas enters the small gas cylinder, under the action of pressure, the gas reserved in the small gas cylinder is discharged from a gas discharge channel in an exhaust pipe and is discharged into a gas discharge hole after being discharged into the gas discharge hole, the wire rod pull ring is rotated clockwise to enable the sealing ring to seal the plugging port, if special conditions are met, the small gas cylinder is exposed or other external surfaces are high Wen Qingkuang, when the air pressure reaches a certain pressure, the air pressure can jack a first pressure relief needle, the sealing ring on the first pressure relief needle breaks away from sealing of the plugging port, a second spring is compressed, and at the moment, redundant liquid gas in the small gas cylinder is discharged from the gas discharge channel in the exhaust pipe and is discharged into the gas discharge hole after being opened.

Description

Inflation, evacuation and automatic pressure relief device

Technical Field

The utility model belongs to the technical field of gas cylinder inflation, and particularly relates to an inflation emptying and automatic pressure relief device.

Background

A small gas cylinder (liquefied gas cylinder) is a disposable or re-inflatable mobile pressure vessel that includes different pressures, different volumes, different structural forms and different materials for the storage and transportation of permanent gases, liquefied gases and dissolved gases.

At present, the industrial small gas cylinder in the existing market needs to be placed at a designated position for inflation, the gas storage is generally carried out by directly connecting a single gas inlet pipe with a gas storage cylinder in the small gas cylinder, the gas pressure in the cylinder body is relieved through a gas outlet in the gas inlet pipe, and the gas outlet is controlled through a thread needle valve, but because the thread needle valve mainly consists of a nut, a valve needle and an O-shaped ring, the valve needle is controlled through thread transmission rotation so as to open and close the gas outlet, but because the thread needle valve has more rotation number of thread transmission when being closed or opened, the speed of opening and closing the gas outlet is slower when the gas is stored and is fed, and the whole inflation conveying and pressure relieving efficiency is greatly reduced.

Disclosure of Invention

The present utility model is directed to an inflatable evacuation and automatic pressure relief device, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an aerify evacuation and automatic pressure relief device, includes little gas cylinder, little gas cylinder top is equipped with the subassembly of aerifing, it is equipped with the inflation connector to aerify the subassembly top, it includes sealed tube, nut to aerify the subassembly, sealed tube and little gas cylinder top switch-on are sealed, the air inlet channel has been seted up in the sealed tube, be equipped with valve core and valve core top in the air inlet channel and be equipped with first double-deck sealing washer, nut and sealed tube left side spiro union, run through in the nut and be equipped with first pressure release needle, the shutoff mouth of seting up in one end and the sealed tube of first pressure release needle is sealed and is equipped with the wire rod pull ring on the other end of first pressure release needle.

Preferably, the sealing tube is internally provided with a second pressure relief needle which is positioned at the left side of the air inlet channel, the top of the second pressure relief needle is provided with a second double-layer sealing ring, the bottom of the second pressure relief needle is fixedly connected with a first spring, the other end of the first spring is fixedly connected with an exhaust pipe, an exhaust channel is arranged in the exhaust pipe, and an exhaust pressure relief hole is formed in the screwed joint of the nut and the sealing tube.

Preferably, the first pressure release needle and the one end that is located the nut are gone up the cover and are equipped with the second spring, and the one end and the first pressure release needle right side fixed connection of second spring, the gasket fixed connection of the other end and the first pressure release needle left side cup joint.

Preferably, the sealing rings are sleeved at the two ends of the first pressure relief needle.

Preferably, the inflation connector comprises an inflation pipeline and an inflation nozzle, wherein the bottom of the inflation pipeline is communicated with the inflation nozzle, and a jacking block is fixed on the left side of the inflation nozzle.

Preferably, the charging connector is connected and sealed with the first double-layer sealing ring, and the top block is connected and sealed with the second double-layer sealing ring.

The utility model has the technical effects and advantages that: the device comprises a small gas cylinder, wherein when the small gas cylinder is inflated, a sealing pipe is communicated with the top of the small gas cylinder and sealed, an inflation connector is communicated with the sealing pipe and sealed, the inflation connector is connected with an external large gas cylinder to inflate the small gas cylinder, when the small gas cylinder is inflated, the wire rod pull ring is rotated anticlockwise to ninety degrees, the wire rod pull ring pulls up a sealing ring to break away from the sealing of a sealing port, liquid gas enters the small gas cylinder, under the action of pressure, the gas reserved in the small gas cylinder is discharged from an exhaust channel in an exhaust pipe and discharged into an exhaust pressure relief hole through the opened sealing port, and then the gas reserved in the small gas cylinder is discharged automatically;

when the sealing ring seals the plugging port by rotating the wire rod pull ring ninety degrees clockwise, if special conditions are met, the small gas cylinder is exposed to the sun or other external surface is Wen Qingkuang, when the gas pressure reaches a certain pressure (the set pressure of the cylinder body is 1.59-1.75 Mpa), the gas pressure can push up the first pressure release needle, so that the sealing ring on the first pressure release needle breaks away from the sealing of the plugging port, the second spring is compressed, redundant liquid gas in the small gas cylinder is discharged from the exhaust channel in the exhaust pipe and is discharged into the exhaust pressure release hole after being opened, and the risk of high-pressure explosion is automatically relieved, so that the risk of high-pressure explosion is eliminated.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the inflation assembly of the present utility model;

FIG. 3 is a schematic view of the closure of the occlusion of the present utility model;

fig. 4 is a schematic view of the structure of the utility model with the closure open.

In the figure: 1. a small gas cylinder; 2. an inflation assembly; 3. an inflation joint; 4. sealing the tube; 5. a nut; 6. an air intake passage; 7. a valve core; 8. a first double-layer sealing ring; 9. a first pressure relief needle; 10. sealing the opening; 11. a wire pull ring; 12. a second pressure relief needle; 13. a second double-layer seal ring; 15. a first spring; 16. an exhaust pipe; 17. an exhaust passage; 18. a venting pressure relief orifice; 19. a second spring; 20. a gasket; 21. a seal ring; 22. an inflation pipeline; 23. an air charging nozzle; 24. and (5) a top block.

Detailed Description

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

The utility model provides an inflation, evacuation and automatic pressure relief device as shown in figures 1-4, which comprises a small gas cylinder 1, wherein an inflation assembly 2 is arranged at the top of the small gas cylinder 1, an inflation connector 3 is arranged at the top of the inflation assembly 2, the inflation assembly 2 comprises a sealing tube 4 and a nut 5, the sealing tube 4 is communicated with and sealed with the top of the small gas cylinder 1, an air inlet channel 6 is formed in the sealing tube 4, a valve core 7 is arranged in the air inlet channel 6, a first double-layer sealing ring 8 is arranged at the top of the valve core 7, the nut 5 is in threaded connection with the left side of the sealing tube 4, a first pressure relief needle 9 is arranged in the nut 5 in a penetrating manner, one end of the first pressure relief needle 9 is sealed with a sealing opening 10 formed in the sealing tube 4, and a wire pull ring 11 is arranged at the other end of the first pressure relief needle 9.

The sealing tube 4 is internally provided with a second pressure relief needle 12 positioned at the left side of the air inlet channel 6, the top of the second pressure relief needle 12 is provided with a second double-layer sealing ring 13, the bottom of the second pressure relief needle 12 is fixedly connected with a first spring 15, the other end of the first spring 15 is fixedly connected with an exhaust pipe 16, an exhaust channel 17 is arranged in the exhaust pipe 16, a pressure relief hole 18 is arranged at the screw joint of the nut 5 and the sealing tube 4, and gas and pressure in the small gas cylinder 1 are discharged into the small gas cylinder 1 through the pressure relief hole 18.

The second spring 19 is sleeved on one end of the first pressure relief needle 9, which is positioned in the nut 5, one end of the second spring 19 is fixedly connected with the right side of the first pressure relief needle 9, the other end of the second spring 19 is fixedly connected with the gasket 20 sleeved on the left side of the first pressure relief needle 9, the second spring 19 is compressed when the first pressure relief needle 9 is pushed open by air pressure, the second spring 19 rebounds after pressure relief is completed, the first pressure relief needle 9 is driven to move, and the plugging opening 10 is sealed by the sealing ring 21.

Sealing rings 21 are sleeved at two ends of the first pressure relief needle 9, and the plugging port 10, the penetrating position of the nut 5 and the first pressure relief needle 9 are sealed.

The inflation connector 3 comprises an inflation pipeline 22 and an inflation nozzle 23, wherein the bottom of the inflation pipeline 22 is communicated with the inflation nozzle 23, and a top block 24 is fixed on the left side of the inflation nozzle 23.

The charging connector 23 is connected with and sealed by the first double-layer sealing ring 8, and the top block 24 is connected with and sealed by the second double-layer sealing ring 13, so that the double-layer sealing is tighter in tightness and better in safety.

The device comprises a small gas cylinder 1, wherein when the small gas cylinder 1 is inflated, a sealing pipe 4 is communicated with the top of the small gas cylinder 1 and sealed, an inflation connector 3 is communicated with the sealing pipe 4 and sealed, when the inflation connector 3 is connected with an external large gas cylinder to inflate the small gas cylinder 1, as shown in fig. 4, the wire rod pull ring 11 is rotated anticlockwise for ninety degrees, the wire rod pull ring 11 pulls up a sealing ring 21 to separate from the sealing of a sealing port 10, liquid gas enters the small gas cylinder 1, under the action of pressure, the gas reserved in the small gas cylinder 1 is discharged from an exhaust channel 17 in an exhaust pipe 16 and is discharged into an exhaust pressure relief hole 18 after being opened, the gas reserved in the small gas cylinder 1 is discharged automatically, when the liquid gas is discharged from the exhaust pressure relief hole 18, the air is discharged from the small gas cylinder 1, as shown in fig. 3, the wire rod pull ring 11 is rotated clockwise to enable the sealing ring 21 to seal the sealing port 10, and the opening and closing can be performed simply by rotating the wire rod pull ring 11 ninety degrees and the automatic exhaust;

when the wire pull ring 11 is rotated ninety degrees clockwise to enable the sealing ring 21 to seal the sealing opening 10, if special conditions are met, the small gas cylinder is exposed to sun or other external surface is high Wen Qingkuang, when the gas pressure reaches a certain pressure (the set pressure of the bottle body is 1.59-1.75 Mpa), the gas pressure can push up the first pressure release needle 9, so that the sealing ring 21 on the first pressure release needle 9 breaks away from the sealing of the sealing opening 10, the second spring 19 is compressed, redundant liquid gas in the small gas cylinder 1 is discharged from the exhaust channel 17 in the exhaust pipe 16 and discharged into the small gas cylinder 1 after the opened sealing opening 10 is discharged into the exhaust pressure release hole 18, the inflation is completed, the automatic pressure release is realized, and the risk of high-pressure explosion is eliminated.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides an inflation evacuation and automatic pressure release device, includes little gas cylinder (1), its characterized in that: the utility model discloses a gas-tight seal device for gas-tight seal of gas-tight seal, little gas cylinder (1) top is equipped with inflatable module (2), inflatable module (2) top is equipped with inflatable connector (3), inflatable module (2) are including sealed tube (4), nut (5), sealed tube (4) are put through and are sealed with little gas cylinder (1) top, inlet channel (6) have been seted up in sealed tube (4), be equipped with valve core (7) and valve core (7) top in inlet channel (6) and be equipped with first double-deck sealing washer (8), nut (5) and sealed tube (4) left side spiro union, run through in nut (5) and be equipped with first pressure release needle (9), seal mouth (10) that set up in one end and sealed tube (4) seal and be equipped with wire rod (11) on the other end of first pressure release needle (9).

2. The inflation, evacuation and automatic pressure relief device of claim 1, wherein: the novel sealing device is characterized in that a second pressure relief needle (12) is arranged in the sealing tube (4) and positioned on the left side of the air inlet channel (6), a second double-layer sealing ring (13) is arranged at the top of the second pressure relief needle (12), a first spring (15) is fixedly connected to the bottom of the second pressure relief needle (12), the other end of the first spring (15) is fixedly connected with an exhaust tube (16), an exhaust channel (17) is arranged in the exhaust tube (16), and an exhaust pressure relief hole (18) is formed in the screw joint of the nut (5) and the sealing tube (4).

3. The inflation, evacuation and automatic pressure relief device of claim 1, wherein: the first pressure release needle (9) and one end located in the nut (5) are sleeved with a second spring (19), one end of the second spring (19) is fixedly connected with the right side of the first pressure release needle (9), and the other end of the second spring is fixedly connected with a gasket (20) sleeved on the left side of the first pressure release needle (9).

4. A pneumatic evacuation and automatic pressure relief device according to claim 3, wherein: and sealing rings (21) are sleeved at two ends of the first pressure release needle (9).

5. The inflation, evacuation and automatic pressure relief device of claim 1, wherein: the inflating joint (3) comprises an inflating pipeline (22) and an inflating nozzle (23), wherein the bottom of the inflating pipeline (22) is communicated with the inflating nozzle (23) and a top block (24) is fixed on the left side of the inflating nozzle (23).

6. The inflation, evacuation and automatic pressure relief device of claim 5, wherein: the charging connector (23) is connected and sealed with the first double-layer sealing ring (8), and the top block (24) is connected and sealed with the second double-layer sealing ring (13).