CN211178864U - Internal and external expansion plug device - Google Patents
Internal and external expansion plug device Download PDFInfo
- Publication number
- CN211178864U CN211178864U CN201922472227.7U CN201922472227U CN211178864U CN 211178864 U CN211178864 U CN 211178864U CN 201922472227 U CN201922472227 U CN 201922472227U CN 211178864 U CN211178864 U CN 211178864U
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- cylinder body
- boss
- cushion
- piston
- retaining ring
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Abstract
The utility model discloses an inside and outside inflation end cap device. This inside and outside inflation end cap device includes one end confined cylinder body, and sliding connection has the piston in the cylinder body, and the one end and the blind end laminating of piston, the terminal surface of the other end are provided with two endocentric bosss, are inner circle boss and outer lane boss respectively, and the cylinder body is provided with the interior retaining ring that is used for blockking the inner circle boss, is provided with interior cushion between inner circle boss and the interior retaining ring, interior retaining ring passes through the bolt to be connected with the blind end of cylinder body, and the cylinder body still is provided with the outer retainer ring that is used for blockking the outer lane boss, is provided with outer cushion between outer lane boss and the outer retainer ring, and the clearance between interior cushion and the outer cushion and the. The utility model provides a rubber stopper problem that drops easily when prior art gas tightness detects.
Description
Technical Field
The utility model relates to a radiator gas tightness test device especially relates to an inside and outside inflation end cap device.
Background
At present, due to the wide application of automobiles, automobile radiators are produced in large quantities, and the air tightness detection of the radiators is very important. In the prior art, when the air tightness of the radiator is detected, the plug plugs the water outlet pipe of the radiator, the gas pressure device inflates the radiator from the water inlet, and the reading of the pressure gauge is read, so that whether the air tightness of the radiator is qualified is judged. The plug is inserted in the water outlet pipe, and the water outlet pipe is kept closed by means of the elastic deformation of the plug and the friction force between the plug and the inner wall of the water inlet pipe. During actual detection, along with the increase of air pressure, when the friction force between the rubber plug and the cylinder body is insufficient, the rubber plug falls off from the cylinder body, so that the detection cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a more firm inside and outside inflation end cap device to prior art not enough.
In order to achieve the above purpose, the utility model discloses the technical scheme that inside and outside inflation end cap device adopted is:
the utility model provides an inside and outside inflation end cap device, includes one end confined cylinder body, and sliding connection has the piston in the cylinder body, and the one end and the blind end laminating of piston, the terminal surface of the other end are provided with two endocentric bosss, are inner circle boss and outer lane boss respectively, and the cylinder body is provided with the interior retaining ring that is used for blockking the inner circle boss, is provided with interior cushion between inner circle boss and the interior retaining ring, interior retaining ring passes through the bolt to be connected with the blind end of cylinder body, and the cylinder body still is provided with the outer retaining ring that is used for blockking the outer lane boss, is provided with outer cushion between outer lane boss and the outer retaining ring, and the clearance between interior cushion and the outer. When detecting airtight, outlet conduit pegs graft in the clearance of interior cushion and outer cushion, the air current gets into the cylinder body from the air inlet, promote the piston and take place the displacement, simultaneously through inner circle boss and outer lane boss with pressure transmission to corresponding interior cushion and outer cushion, interior cushion and outer cushion are extrudeed, press from both sides tightly the mouth of pipe under test, 100% plug up the mouth of pipe, interior, outer cushion extrudees the pipe wall simultaneously from the inside and outside of outlet pipe, frictional force is bigger, the gas tightness is better, it is more firm to plug. Because interior retaining ring and outer retaining ring and cylinder body fixed connection for interior cushion and outer cushion can not drop from the cylinder body.
Preferably, a sealing ring is arranged between the outer peripheral surface of the piston and the inner wall of the cylinder body. The gas leakage caused by the machining error of the cylinder body and the piston is effectively avoided.
Preferably, the outer retainer ring is annular and is in threaded connection with the cylinder body. The outer retainer ring and the cylinder body can be in internal thread connection or in external thread connection.
Preferably, the closed end of the cylinder body is fixedly connected with a center block inserted into the piston, the piston is sleeved on the outer side of the center block and is in sliding connection with the center block, and the inner retainer ring is fixedly connected with the center block through a bolt.
Preferably, the center block is provided with a boss protruding outside the closed end of the cylinder body. When the air tightness is detected manually, the lug boss can be held by a hand.
Preferably, the inner elastic pad and the outer elastic pad are rubber pads or silica gel pads.
Compared with the prior art, the utility model, have following advantage:
the inner elastic pad and the outer elastic pad deform after being pressed, the inner side and the outer side of the inner elastic pad extrude the water outlet pipe, the friction force between the plug and the water outlet pipe is improved, and the plugging is firmer; the inner elastic pad and the outer elastic pad are provided with corresponding inner retaining rings and corresponding outer retaining rings to serve as a backer, so that the inner elastic pad and the outer elastic pad are prevented from falling off from the cylinder body, and the normal operation of an airtight detection test is influenced.
Drawings
Fig. 1 is a schematic structural view of an internal and external expansion plug device.
The device comprises a cylinder body 1, an air inlet 2, a center block 3, a boss 4, a piston 5, a sealing ring 6, an inner ring boss 7, an outer ring boss 8, an inner elastic pad 9, an inner retainer ring 10, a bolt 11, an outer retainer ring 12 and an outer elastic pad 13.
Detailed Description
The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.
As shown in figure 1, the internal and external expansion plug device comprises a cylinder body 1 with one closed end, an air inlet 2 is arranged at the closed end of the cylinder body 1, a center block 3 inserted into a piston is connected with the closed end of the cylinder body 1 in a threaded manner, a boss 4 is arranged on the outer side of the closed end of the cylinder body 1 by the center block 3, the boss 4 can be held by a hand when an airtight detection test is carried out manually, a piston 5 is connected in the cylinder body 1 in a sliding manner, an annular groove is formed in the outer peripheral surface of the piston 5, a sealing ring 6 used for sealing the outer peripheral surface of the piston 5 and the inner peripheral surface of the cylinder body 1 is embedded in the annular groove, the sealing ring has 6 effects of avoiding gas leakage caused by processing errors of a plug part, a through hole avoiding the center block is formed in the piston 5 along the axis, the piston 5 is sleeved on, be inner circle boss 7 and outer lane boss 8 respectively, interior retaining ring 10 is circular gasket, interior retaining ring 10 passes through bolt 11 and 3 fixed connection of center block, interior cushion 9 is installed between center block and interior retaining ring, interior retaining ring is as the backer of interior cushion, the piston extrudees the interior cushion when moving to interior retaining ring, outer retaining ring 12 is cyclic annular, outer retaining ring 12 outer peripheral face and 1 female connection of cylinder body, the step is seted up to outer retaining ring 12 inner peripheral surface, it has outer cushion 13 to inlay between step and the outer lane boss, set up the clearance between interior cushion 9 and the outer cushion 13, the mouth of pipe of treating the shutoff is pegged graft in the clearance.
The utility model discloses a concrete working process and principle: the boss 4 outside the cylinder body blind end is arranged in to artifical handheld central block 3, to wait to detect the mouth of pipe peg graft in the clearance between interior cushion 9 and outer cushion 13, the air current gets into inside 1 of cylinder body from the inlet port 2 of 1 blind end of cylinder body, promote piston 5 and take place the displacement, transmit corresponding interior cushion 9 and outer cushion 13 with pressure through inner circle boss 7 and outer lane boss 8 simultaneously, interior cushion 9 and outer cushion 13 receive the extrusion, press from both sides tightly by the measuring mouth of pipe, the mouth of pipe is stopped up by 100%, because interior retaining ring 10 and outer retaining ring 13 and cylinder body 1 fixed connection, make interior cushion 9 and outer cushion 13 can not follow cylinder body 1 and drop, guarantee to do airtight detection test normal clear.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides an inside and outside inflation end cap device which characterized in that: including one end confined cylinder body, sliding connection has the piston in the cylinder body, and the one end and the blind end laminating of piston, the terminal surface of the other end are provided with two endocentric bosss, are inner circle boss and outer lane boss respectively, and the cylinder body is provided with the interior retaining ring that is used for blockking the inner circle boss, is provided with interior cushion between inner circle boss and the interior retaining ring, interior retaining ring passes through the bolt to be connected with the blind end of cylinder body, and the cylinder body still is provided with the outer retaining ring that is used for blockking the outer lane boss, is provided with outer cushion between outer lane boss and the outer retaining ring, and the clearance between interior cushion and the outer cushion and the mouth of pipe phase.
2. The internal and external expansion plug device according to claim 1, wherein: and a sealing ring is arranged between the peripheral surface of the piston and the inner wall of the cylinder body.
3. The internal and external expansion plug device according to claim 1, wherein: the outer retainer ring is annular and is in threaded connection with the cylinder body.
4. The internal and external expansion plug device according to claim 1, wherein: the closed end of the cylinder body is fixedly connected with a center block inserted into the piston, the piston is sleeved on the outer side of the center block and is in sliding connection with the center block, and the inner check ring is fixedly connected with the center block through a bolt.
5. The internal and external expansion plug device according to claim 4, wherein: the center block is provided with a boss protruding out of the outer side of the closed end of the cylinder body.
6. The internal and external expansion plug device according to claim 1, wherein: the inner elastic pad and the outer elastic pad are rubber pads or silica gel pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472227.7U CN211178864U (en) | 2019-12-31 | 2019-12-31 | Internal and external expansion plug device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922472227.7U CN211178864U (en) | 2019-12-31 | 2019-12-31 | Internal and external expansion plug device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211178864U true CN211178864U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922472227.7U Active CN211178864U (en) | 2019-12-31 | 2019-12-31 | Internal and external expansion plug device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211178864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179574A (en) * | 2020-10-16 | 2021-01-05 | 格力电器（武汉）有限公司 | Sealing tool and system for sealing detection of closed container |
-
2019
- 2019-12-31 CN CN201922472227.7U patent/CN211178864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179574A (en) * | 2020-10-16 | 2021-01-05 | 格力电器（武汉）有限公司 | Sealing tool and system for sealing detection of closed container |
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