CN212408240U

CN212408240U - Air tap sealing cover suitable for high-pressure air storage device

Info

Publication number: CN212408240U
Application number: CN202020435363.9U
Authority: CN
Inventors: 吴奉明; 陈伟; 王阿江; 李龙辉; 任彩虹
Original assignee: Chengdu Aircraft Industrial Group Co Ltd
Current assignee: Chengdu Aircraft Industrial Group Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2021-01-26
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses an air cock sealing cover suitable for high-pressure gas storage device, including the bearing portion on upper portion and the part of inserting of lower part, the bearing portion inside is the cavity, installs the floating washer in the cavity, the floating washer lower part is provided with the first rubber ring that matches with the air cock, and the part inboard of inserting is provided with the internal thread that matches with the external screw thread of air cock; when the air tap of the high-pressure air storage device is connected with the inserting part through the threads, the first rubber ring at the lower part of the floating gasket is tightly contacted with the upper part of the air tap of the high-pressure air storage device; the side wall of the lower part of the pressure-bearing part is provided with a plurality of air holes which are communicated with the inner cavity of the pressure-bearing part and the external environment and can be plugged by a floating gasket in the inner cavity of the pressure-bearing part. The utility model discloses an add the packing ring that floats at the lid to the cooperation sets up the air vent, utilizes the outside atmospheric pressure of high-pressure gas cooperation in the gas storage device to make the packing ring that floats compress tightly the rubber ring, realizes the complete sealing to the air cock through the rubber ring, and it is sealed effectual, is fit for extensive popularization and application.

Description

Air tap sealing cover suitable for high-pressure air storage device

Technical Field

The utility model relates to a high-pressure gas sealing equipment technical field specifically indicates a sealed lid of air cock suitable for high-pressure gas storage device.

Background

In aviation products, there are some non-standard gas storage devices due to structural and weight limitations. These gas storage devices are generally filled with high-pressure gas, so the nozzles of these gas storage devices need to be strictly sealed to ensure the pressure of the gas in the gas storage devices and avoid the leakage of the high-pressure gas therein. Because these gas storage device are not standardized, so its air cock form is also diversified, and like, these air cock's sealed lid is also five eight doors. In order to ensure the air tightness of the sealing covers, long-time pressure maintaining tests need to be carried out on the sealing covers, the sealing covers are various in form, the structures and even the designs of some sealing covers are very complex for the sealing effect, and a lot of inconvenience is brought to the pressure maintaining tests for verifying the air tightness. In addition, the existing sealing covers forcibly seal the air nozzles through the air-tight pieces, so that the air tightness cannot be effectively guaranteed and the sealing cover is very unreliable for high-pressure gas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed effect is stable, is difficult for leaking high-pressure gas's general air cock from airtight frock.

The utility model discloses a following technical scheme realizes: the air faucet sealing cover suitable for the high-pressure air storage device comprises an upper pressure bearing part and a lower inserting part, wherein a cavity is formed in the pressure bearing part, a floating gasket is arranged in the cavity, a first rubber ring matched with an air faucet is arranged at the lower part of the floating gasket, and an internal thread matched with an external thread of the air faucet is arranged on the inner side of the inserting part; when the air tap of the high-pressure air storage device is connected with the inserting part through the threads, the first rubber ring at the lower part of the floating gasket is tightly contacted with the upper part of the air tap of the high-pressure air storage device; the side wall of the lower part of the pressure-bearing part is provided with a plurality of air holes, and the air holes are communicated with the inner cavity of the pressure-bearing part and the external environment and can be plugged by a floating gasket in the inner cavity of the pressure-bearing part.

The working principle of the technical scheme is that the pressure difference between high-pressure gas in the high-pressure gas storage device and the external environment is utilized, so that the floating gasket tightly presses the air faucet with the first rubber ring at the lower part of the floating gasket under the action of the high-pressure gas, and the air vents are plugged simultaneously, so that the air faucet is completely sealed.

For better realization the utility model discloses, furtherly, the gasket lateral wall outside that floats still is provided with the second rubber ring with the inside lateral wall contact of bearing portion.

In order to better realize the utility model, the bearing part mainly comprises a clamping nut and an inner cover, a through groove matched with the inner cover is arranged in the clamping nut, an inner thread is arranged on the inner wall of the through groove, an outer thread is arranged on the lower part of the inner cover, and the inner cover is in threaded connection with the top of the clamping nut; the lower part of the clamping nut and the inserting part are of an integrated structure, and the internal thread of the through groove in the clamping nut and the internal thread on the inner side of the inserting part are reverse threads.

For better realization the utility model discloses, furtherly, set up the cavity of the unsteady packing ring of installation in the inner cup, just the outside second rubber ring of unsteady packing ring lateral wall and the inside lateral wall in close contact with of inner cup.

For better realization the utility model discloses, furtherly, the cavity in the inner cup is "protruding" font, the packing ring outer fringe joint that floats is in the "protruding" font cavity of inner cup.

For better realization the utility model discloses, furtherly, the inside of the packing ring that floats is the circular cone curved surface, and the narrow end lower part of the packing ring that floats sets up first rubber ring and air cock contact.

For better realization the utility model discloses, further, the diameter of first rubber ring is the same with the narrow end internal diameter of the packing ring that floats.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the floating gasket is additionally arranged on the cover body and is matched with the air vent, the high-pressure gas in the gas storage device is matched with the external atmospheric pressure to enable the floating gasket to compress the rubber ring, the air tap is completely sealed through the rubber ring, and the sealing effect is good;

(2) the utility model realizes the sealing of various air nozzles by providing the cover body with a unified structure, so that the verification process of the air tightness can be carried out according to a unified standard, and great convenience is provided for the pressure maintaining test of the sealing cover;

(3) the utility model discloses simple structure, sealed respond well, the difficult high-pressure gas that leaks of air cock that seals has guaranteed the gas tightness, and is very reliable, and the air cock that is fit for wide popularization and application in all kinds of gas storage device is sealed.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the cross-sectional three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the plugging conical nozzle of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the plugging plane air faucet of the present invention.

Wherein: 1-bearing portion, 2-inserting portion, 3-air vent, 4-floating washer, 5-first rubber ring, 6-second rubber ring, 7-inner cup, 8-air cock.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the definitions of "first" and "second" are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly including one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the main structure of this embodiment, as shown in fig. 1, includes an upper pressure-bearing portion 1 and a lower insertion portion 2, where the pressure-bearing portion 1 is internally provided with a cavity, a floating gasket 4 is installed in the cavity, a first rubber ring 5 matched with an air faucet 8 is arranged at the lower portion of the floating gasket 4, and an internal thread matched with an external thread of the air faucet 8 is arranged at the inner side of the insertion portion 2; when the air tap 8 is connected with the inserting part 2 through the screw thread, the first rubber ring 5 at the lower part of the floating gasket 4 is tightly contacted with the upper part of the air tap 8; the side wall of the lower part of the pressure bearing part 1 is provided with a plurality of air holes 3, the air holes 3 are communicated with the inner cavity of the pressure bearing part 1 and the external environment and can be blocked by a floating gasket 4 in the inner cavity of the pressure bearing part 1.

In the specific implementation mode, the inserting part 2 of the sealing cover is screwed into the air faucet 8 of the high-pressure air storage device and screwed, high-pressure air in the high-pressure air storage device enters the pressure bearing part 1 of the sealing cover from the air faucet 8, after the high-pressure air enters the pressure bearing part 1, the upper part of the floating gasket 4 receives the effect of the high-pressure air, the air vent 3 on the side wall of the lower part of the pressure bearing part 1 is blocked, meanwhile, the floating gasket 4 moves downwards, the first rubber ring is tightly pressed at the air faucet 8, and sealing of the air faucet 8 is achieved.

The gas nozzle 8 can be a conical gas nozzle or a planar gas nozzle, as shown in fig. 2 and 3.

Example 2:

in the present embodiment, the structure of the floating rubber ring 4 is further defined on the basis of the above embodiments, as shown in fig. 1 to 3, a second rubber ring 6 contacting with the inner side wall of the pressure receiving portion 1 is further disposed outside the side wall of the floating washer 4. The second rubber ring 6 is arranged, so that high-pressure gas can be prevented from flowing to the air holes 3 from the side edge of the floating rubber ring 4, and the high-pressure gas is prevented from leaking. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 3:

in the embodiment, on the basis of the above embodiment, the structure of the pressure-bearing portion 1 is further limited, as shown in fig. 1 to 3, the pressure-bearing portion 1 mainly comprises a parallel nut and an inner cover 7, a through groove matched with the inner cover 7 is formed in the parallel nut, an internal thread is formed on the inner wall of the through groove, an external thread is formed on the lower part of the inner cover 7, and the inner cover 7 is in threaded connection with the top of the parallel nut; the lower part of the clamping nut and the inserting part 2 are of an integrated structure, and the internal thread of the through groove in the clamping nut and the internal thread on the inner side of the inserting part 2 are reverse threads. Add inner cup 7, when installing floating washer 4 in the 1 inner chamber of bearing portion, can directly screw out inner cup 7 from the lock nut, then will float washer 4 and arrange in the logical inslot of lock nut, then with inner cup 7 screw in lock nut again can. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 4:

in the present embodiment, the structure of the inner cover 7 is further defined on the basis of the above embodiments, as shown in fig. 1 to 3, a cavity for installing the floating gasket 4 is arranged in the inner cover 7, and the second rubber ring 6 outside the side wall of the floating gasket 4 is in close contact with the inner side wall of the inner cover 7. The floating gasket 4 is seated in the inner cap 4, and replacement and installation of the floating gasket 4 become more convenient. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 5:

in this embodiment, on the basis of the above embodiments, the structure of the inner cover 7 is further limited, as shown in fig. 1 to 3, the cavity in the inner cover 7 is in a shape of a Chinese character 'tu', and the outer edge of the floating gasket 4 is clamped in the cavity in the shape of the Chinese character 'tu' of the inner cover 7. The arrangement of the cavity structure in the inner cover 7 is to ensure that the floating gasket 4 can be more stably arranged in the inner cover 7, and the stress is more uniform when high-pressure gas acts on the upper surface of the floating gasket 4. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 6:

in this embodiment, the structure of the floating gasket 4 is further defined, as shown in fig. 1 to 3, the floating gasket 4 is a conical surface, and the first rubber ring 5 is disposed at the lower portion of the narrow end of the floating gasket 4 to contact with the air faucet 8. The structure of the floating washer 4 is particularly optimized in order to enable the floating washer 4 to better compress the first rubber ring 5 and the air tap 8, and also to better seal off the ventilation holes 3. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 7:

the present embodiment further defines the first rubber ring 5 on the basis of the above embodiment, and the diameter of the first rubber ring 5 is the same as the inner diameter of the narrow end of the floating washer 4. The first rubber ring 5 is ensured to be closely contacted with the air nozzle 8 under the pressure of the floating gasket 4. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

It is understood that the operation principle and operation of the sealing cover structure according to an embodiment of the present invention, such as the first rubber ring 5 and the second rubber ring 6, are well known in the art and will not be described in detail herein.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The air faucet sealing cover suitable for the high-pressure air storage device is characterized by comprising an upper pressure bearing part (1) and a lower inserting part (2), wherein a cavity is formed in the pressure bearing part (1), a floating gasket (4) is installed in the cavity, a first rubber ring (5) matched with an air faucet (8) is arranged at the lower part of the floating gasket (4), and an internal thread matched with an external thread of the air faucet (8) is arranged on the inner side of the inserting part (2); when the air tap (8) is connected with the inserting part (2) through the threads, the first rubber ring (5) at the lower part of the floating gasket (4) is tightly contacted with the upper part of the air tap (8); the side wall of the lower part of the bearing part (1) is provided with a plurality of air holes (3), the air holes (3) are communicated with the inner cavity of the bearing part (1) and the external environment, and can be plugged by a floating gasket (4) in the inner cavity of the bearing part (1).

2. The air tap sealing cover suitable for the high-pressure air storage device according to claim 1, wherein a second rubber ring (6) contacting with the inner side wall of the pressure bearing part (1) is further arranged outside the side wall of the floating gasket (4).

3. The air tap sealing cover suitable for the high-pressure air storage device is characterized in that the pressure bearing part (1) mainly comprises a clamping nut and an inner cover (7), wherein a through groove matched with the inner cover (7) is formed in the clamping nut, an internal thread is arranged on the inner wall of the through groove, an external thread is arranged on the lower part of the inner cover (7), and the inner cover (7) is in threaded connection with the top of the clamping nut; the lower part of the clamping nut and the inserting part (2) are of an integrated structure, and the internal thread of the through groove in the clamping nut and the internal thread on the inner side of the inserting part (2) are reverse threads.

4. The nozzle sealing cover for a high pressure gas storage device according to claim 3, wherein a cavity for installing the floating gasket (4) is formed in the inner cover (7), and the second rubber ring (6) outside the side wall of the floating gasket (4) is in close contact with the inner side wall of the inner cover (7).

5. The air tap sealing cover suitable for the high-pressure air storage device according to claim 4, wherein the cavity inside the inner cover (7) is in a shape like a Chinese character 'tu', and the outer edge of the floating gasket (4) is clamped in the cavity of the shape like the Chinese character 'tu' of the inner cover (7).

6. The air tap sealing cover suitable for the high-pressure air storage device according to claim 1 or 2, wherein the floating gasket (4) is a conical surface, and the first rubber ring (5) is arranged at the lower part of the narrow end of the floating gasket (4) to contact with the air tap (8).

7. The air tap sealing cover adapted to high pressure air storage device according to claim 6, wherein the diameter of said first rubber ring (5) is the same as the inner diameter of the narrow end of the floating washer (4).