CN210089930U

CN210089930U - External expanding type air tightness plugging device

Info

Publication number: CN210089930U
Application number: CN201920811245.0U
Authority: CN
Inventors: 袁为民; 赖辉; 陈建璀; 刘军; 王志军
Original assignee: Huizhou Green Protection Technology Co Ltd
Current assignee: Huizhou Green Protection Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-02-18
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to an external expanding type air tightness plugging device, which comprises an air inlet head for air medium to enter, a seal cavity sleeved on the air inlet head, and an air core, wherein one end of the air core passes through the seal cavity and is connected with the air inlet head, an elastic ring body is sleeved on the air core, and the other end of the air core, which is opposite to the air inlet head, is provided with a locking head for locking the elastic ring body on the air core; the gas core comprises a gas core body, a first connecting end arranged at one end of the gas core body and used for connecting the gas inlet head, and a second connecting end arranged at the opposite other end of the gas core body and used for connecting the locking head. The utility model discloses set up air inlet head, seal chamber, gas core, the head of screwing, the elastic ring body, when gaseous medium entered into seal chamber inside from the air inlet head, the elastic ring expands and realizes quick sealing, and the erection joint is fast, and easy operation need not to reuse raw material area etc. and assists, has improved work efficiency, and is sealed effectual, has ensured the accuracy of gas tightness test.

Description

External expanding type air tightness plugging device

Technical Field

The utility model relates to a fuel cell production and processing technology field, concretely relates to expand type gas tightness plugging device outward.

Background

The air tightness detection is applied to strict integrity evaluation of airplanes, automobile shells, ships and internal containers, and is a quality control application developed for improving the air tightness of vehicles, aircrafts, ships and the like in transportation departments, military departments and basic industries. The air tightness detection is an indispensable detection procedure in the industries such as automobile manufacturing industry, battery manufacturing industry and the like. The air tightness test requires high precision, in the traditional detection process, the generally adopted method is to wind the thread plug with the raw material belt, the thread plug is manually screwed by workers to perform plugging, the speed is low during installation, a large amount of time is often consumed, meanwhile, the randomness is high in the installation process, the thread plug is not tightly screwed, or the thread plug and the detected object are not tightly connected, the air tightness test is abnormal, the accuracy of the detection result of the detected object is affected, therefore, the workers judge the quality of the detected object inaccurately, the repeated detection is often needed, the detection process is complicated, the efficiency is low, the working efficiency is reduced, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an expand type gas tightness plugging device outward.

The utility model discloses a following scheme realizes:

an outward-expanding type air tightness plugging device comprises an air inlet head for air medium to enter, a sealing cavity sleeved on the air inlet head, and an air core, wherein one end of the air core penetrates through the sealing cavity and is connected with the air inlet head; the gas core comprises a gas core body, a first connecting end arranged at one end of the gas core body and used for connecting the gas inlet head, and a second connecting end arranged at the opposite end of the gas core body and used for connecting the locking head, and the gas core is also provided with a gas core through hole which penetrates through the first connecting end, the gas core body and the second connecting end; the inner wall of the sealed cavity is provided with a boss used for connecting a first connecting end of the gas core, the boss and the gas core are movably connected, and the boss divides the sealed cavity into a first connecting part used for connecting an air inlet head and a second connecting part used for connecting a gas core body; the elastic ring body is sleeved on the air core body; the seal cavity and the air inlet head are movably connected.

Furthermore, the air inlet head is of a stepped structure and comprises a first stepped part for air inlet and a second stepped part for connecting the air core; the first step portion is provided with a connecting hole used for connecting the first connecting end, a first air inlet hole and a second air inlet hole used for air inlet are formed in the first step portion, the first air inlet hole is communicated with the connecting hole, and the second air inlet hole is communicated with the sealed cavity through a communicating hole formed in the second step portion.

Furthermore, be provided with a plurality of sealing washer of admitting air between the second step portion of head of admitting air and seal chamber's the inner wall, be provided with a plurality of holding tanks of admitting air that are used for holding sealing washer of admitting air in the second step portion.

Furthermore, the first connecting end is in threaded connection with the connecting hole, and the locking head is in threaded connection with the second connecting end.

Furthermore, a plurality of air core sealing rings are arranged between the boss and the first connecting end of the air core, and a boss accommodating groove for accommodating the air core sealing rings is arranged at the boss and the first connecting end of the air core.

Furthermore, a gasket is arranged on one side, close to the sealed cavity, of the elastic ring body, a gasket is arranged at one end, close to the sealed cavity, of the gasket, and the gasket are sleeved on the air core body.

Furthermore, the elastic ring body is a silica gel ring.

Contrast prior art, the utility model discloses following beneficial effect has:

the utility model discloses set up the head of admitting air, seal chamber, gas core and the head of screwing, the cover is equipped with the elastic ring body on the gas core, elastic ring body part can insert the testee in, when gaseous medium enters into seal chamber inside from the head of admitting air, promote seal chamber extrusion elastic ring and expand, realize quick sealing, erection joint's speed is very fast, and easy operation need not to reuse raw material area etc. and assists, and the production cost is reduced, and the work efficiency is improved, and is sealed effectual, has ensured the accuracy of gas tightness test.

Drawings

Fig. 1 is a structural explosion diagram of an embodiment of an outward-expanding airtight sealing device provided by the present invention.

Fig. 2 is a sectional view of the present embodiment.

Fig. 3 is a structural view of the air core of the present embodiment.

Fig. 4 is a structural view of the intake head of the present embodiment.

Fig. 5 is a structural diagram of the sealed cavity of the present embodiment.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

Referring to fig. 1 to 5, the utility model provides a pair of expand type gas tightness plugging device outward, including the inlet head 1 that supplies gaseous medium to get into, cup joint seal chamber 2 on the inlet head to and gas core 3, wherein one end of gas core is passed seal chamber and is connected with the inlet head, has cup jointed an elastic ring body 4 on the gas core, and the gas core is provided with for the other end of inlet head and is used for locking the locking head 5 on the gas core with the elastic ring body. In the present embodiment, each component is a solid of revolution (i.e., a circle). In this embodiment, the elastic ring body 4 is a silicone ring.

The gas core 3 comprises a gas core body 31, a first connecting end 32 arranged at one end of the gas core body and used for connecting the gas inlet head 1, a second connecting end 33 arranged at the opposite end of the gas core body and used for connecting the locking head, and a gas core through hole 34 penetrating through the first connecting end, the gas core body and the second connecting end. The inner wall of the sealed cavity 2 is provided with a boss 21 for connecting the first connecting end of the air core, and the boss is movably connected with the air core. The boss divides the sealed cavity into a first connecting portion 22 for connecting the air inlet head and a second connecting portion 23 for connecting the air core body. The elastic ring body 4 is sleeved on the air core body 31. The seal cavity 2 is movably connected with the air inlet head 1. The first connecting end 32 is in threaded connection with the connecting hole 13, and the locking head 5 is in threaded connection with the second connecting end 33. During specific implementation, the end part of the first connecting end is provided with a thread, the connecting hole is internally provided with a corresponding thread, and the locking head and the second connecting end are also in the same way. During specific implementation, a wrench groove can be arranged on the air core body, so that the wrench can be conveniently twisted.

The air inlet head 1 is of a stepped structure and comprises a first stepped portion 11 for air inlet and a second stepped portion 12 for connecting the air core 3, wherein the diameter of the first stepped portion is larger than that of the second stepped portion. The first step part is provided with a connecting hole 13 for connecting a first connecting end 32, the first step part is provided with a first air inlet hole 14 and a second air inlet hole 15 for air inlet, the first air inlet hole is communicated with the connecting hole, and the second air inlet hole is communicated with the sealed cavity through a communicating hole 16 arranged on the second step part.

The first connecting portion of seal chamber body is connected and is connected with second step portion (the size of second step portion matches with first connecting portion), first connecting portion and this body coupling of gas core.

A plurality of air inlet sealing rings 17 are arranged between the second step part 12 of the air inlet head 1 and the inner wall of the sealing cavity, and a plurality of air inlet accommodating grooves 18 for accommodating the air inlet sealing rings are arranged on the second step part. A plurality of air core sealing rings 24 are arranged between the boss 21 and the first connecting end 32 of the air core, and a boss accommodating groove 25 for accommodating the air core sealing rings is arranged at the boss and the first connecting end of the air core. In this embodiment, the air inlet sealing ring and the air core sealing ring are both provided with two.

One side of the elastic ring body 4 close to the sealed cavity is provided with a gasket 6, one end of the gasket close to the sealed cavity is provided with a gasket 7, and the gasket are sleeved on the air core body. One side of the gas core body close to the sealing cavity body can be provided with a limiting flange, and the inner diameter of the second connecting part is matched with the size of the flange.

The gas core sleeve is used for detecting tube objects during specific work, and the part of the gas core sleeve, which is provided with the elastic ring body, is inserted into a detected object. The air inlet hole can be connected with an air tap of air inlet equipment. And in the initial state, a gap is formed between the air core body and the boss of the seal cavity. After gaseous medium entered into the intercommunicating pore from the second inlet port, gaseous process intercommunicating pore reachs seal chamber's boss department, because be provided with the sealing washer that admits air between seal chamber's first connecting portion and the second step portion of admitting air head, consequently along with gaseous entering, seal chamber is promoted under the pressure action, moves towards elastic ring body one side, extrudees the elastic ring body, and the elastic ring body takes place to deform, outwards enlarges (diameter grow) to make the elastic ring body can with the inner wall in close contact with of testee, realize sealedly. Meanwhile, a gas medium can be introduced through the first gas inlet hole, and the gas medium enters the measured object after entering the gas core through hole, so that the gas tightness of the measured object is detected.

The utility model discloses set up air inlet head, seal chamber, gas core and the head of screwing, the cover is equipped with the elastic ring body on the gas core, the elastic ring body part can insert the testee in, when gaseous medium enters into seal chamber inside from the air inlet head, promote seal chamber extrusion elastic ring and expand, realize quick sealing, erection joint's speed is very fast, and easy operation need not to reuse raw material area etc. and assists, has improved work efficiency, and is sealed effectual, has ensured the accuracy of gas tightness test.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.

Claims

1. The outward-expanding type airtight blocking device is characterized by comprising an air inlet head (1) for a gas medium to enter, a seal cavity (2) sleeved on the air inlet head and an air core (3), wherein one end of the air core penetrates through the seal cavity and is connected with the air inlet head, an elastic ring body (4) is sleeved on the air core, and the other end, opposite to the air inlet head, of the air core is provided with a locking head (5) for locking the elastic ring body on the air core; the gas core (3) comprises a gas core body (31), a first connecting end (32) arranged at one end of the gas core body and used for connecting the gas inlet head (1), and a second connecting end (33) arranged at the opposite end of the gas core body and used for connecting the locking head, and the gas core is also provided with a gas core through hole (34) penetrating through the first connecting end, the gas core body and the second connecting end; the inner wall of the sealed cavity (2) is provided with a boss (21) for connecting a first connecting end of the gas core, the boss and the gas core are movably connected, and the boss divides the sealed cavity into a first connecting part (22) for connecting an air inlet head and a second connecting part (23) for connecting a gas core body; the elastic ring body (4) is sleeved on the air core body (31); the seal cavity (2) is movably connected with the air inlet head (1).

2. The flaring hermetic sealing device according to claim 1, characterized in that said gas inlet head (1) is of a stepped structure comprising a first step portion (11) for gas inlet and a second step portion (12) for connection to a gas core (3); the first step portion is provided with a connecting hole (13) used for connecting a first connecting end (32), a first air inlet hole (14) and a second air inlet hole (15) used for air inlet are formed in the first step portion, the first air inlet hole is communicated with the connecting hole, and the second air inlet hole is communicated with the sealed cavity through a communicating hole (16) formed in the second step portion.

3. The externally expanding gastight closure device according to claim 2, wherein a plurality of inlet gaskets (17) are arranged between the second step (12) of the inlet head (1) and the inner wall of the sealed cavity, and wherein a plurality of inlet receiving grooves (18) for receiving the inlet gaskets are arranged on the second step.

4. The flaring gas-tight plugging device of claim 2, wherein the first connection end (32) and the connection hole (13) and the locking head (5) and the second connection end (33) are in threaded connection.

5. The flaring gas-tight plugging device of claim 1, wherein a plurality of gas core seal rings (24) are disposed between said boss (21) and said first connection end (32) of the gas core, and a boss receiving groove (25) for receiving the gas core seal rings is disposed at the boss and the first connection end of the gas core.

6. The flaring gas-tight sealing and blocking device according to claim 1, wherein a gasket (6) is arranged on one side of the elastic ring body (4) close to the sealed cavity, a gasket (7) is arranged on one end of the gasket close to the sealed cavity, and the gasket are sleeved on the gas core body.

7. The flaring gas-tight plugging device of claim 1, wherein said elastic ring body (4) is a silicone ring.