CN213117486U

CN213117486U - Pneumatic outer sealing type leakage detecting plug for automobile radiator

Info

Publication number: CN213117486U
Application number: CN202021881534.7U
Authority: CN
Inventors: 边海涛; 陈少龙; 刘永强
Original assignee: Xi'an Jiahe Huaheng Thermal System Co ltd
Current assignee: Xi'an Jiahe Huaheng Thermal System Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-04
Anticipated expiration: 2030-09-02

Abstract

The utility model belongs to the technical field of auto radiator, and discloses a pneumatic outer sealing type leakage detecting plug of an auto radiator, wherein a valve body is provided with a gas flow passage, the lower end of the valve body is connected with a compression sliding sleeve, and a middle spacer sleeve is arranged inside the compression sliding sleeve; a movable piston is arranged in the valve body, and the lower end of the piston is arranged on the inner side of the compression sliding sleeve; a handle is connected between the upper parts of the valve bodies, the top of the piston is connected with an air pipe connector, and the air pipe connector is arranged in the handle; two first air passages are arranged at the upper end of one side of the manual reversing valve on the valve body; and a third air passage and a fourth air passage are arranged on one side of the manual reversing valve on the valve body, the third air passage is communicated with the first air passage positioned on the outer side, and the fourth air passage is communicated with the gas flow passage. The utility model adopts the pneumatic switch control, the clamping is rapid, the operation is convenient and labor-saving, the sealing rings ensure the sealing tightness, and the accuracy of the detection result is improved; and the outward expansion type sealing can avoid the phenomenon that aluminum alloy bushings are embedded in the water outlet pipe and the water inlet pipe, and the air leakage is effectively avoided.

Description

Pneumatic outer sealing type leakage detecting plug for automobile radiator

Technical Field

The utility model belongs to the technical field of auto radiator, especially, relate to a pneumatic external seal formula leak hunting end cap of auto radiator.

Background

At present, an automobile radiator comprises an upper water chamber, a lower water chamber, a core body and the like, pressurized cooling liquid is filled inside the automobile radiator when the automobile radiator is used, and in order to prevent the water leakage condition of the radiator in the use process, high-pressure air and other means are needed to be injected before the product leaves a factory for leak-proof detection. And sealing the water outlet/water inlet during detection, immersing the product in water, filling compressed air into the other port, maintaining the pressure for a certain time, observing whether bubbles emerge from the surface of the product during the period, indicating that the product is well sealed if no bubbles emerge, and indicating that the product is leaked if bubbles emerge otherwise.

In the prior art, a stopper-shaped body is mainly inserted into the water inlet and outlet for plugging, the plugging is not tight, so that the detection result is inaccurate, then aluminum material bushings are embedded in the pipe orifice for ensuring the strength of the pipe orifice of the water inlet and outlet of many products, and the risk of air leakage at the bushing and the bushing is possibly caused when an internal expansion type stopper head is used for pressure testing.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the stopper-shaped body is inserted into the water inlet and outlet for plugging, and the detection result is inaccurate due to poor plugging.

(2) The aluminum material lining is embedded in the pipe orifice of many existing products for ensuring the strength of the pipe orifice of the inlet and outlet, and the risk of air leakage at the position of the lining and the lining can exist when the internal expansion plug is used for pressure test.

The difficulty in solving the above problems and defects is: the outer expansion sealing does not depend on the bushing as a sealing surface, so that the problems that the detection accuracy is influenced by the air leakage of the contact surface of the bushing and the inner wall of the pipe orifice, the slippage and the flying of a plug head of the bushing cause injury to people and the like are solved, the outer expansion sealing difficulty is how to seal and the sealing mode cannot crack the nylon pipe orifice, and the problems can be solved through multiple tests and improvements.

The significance of solving the problems and the defects is as follows: if the bushing is pulled off, the bushing is deformed under ordinary conditions, can not be pressed in again (the water chamber on the product is scrapped and needs to be replaced later), or can be pressed in again, but the reliability of connection between the bushing and the pipe orifice can not be ensured after the bushing is pressed in twice, and the bushing can scratch the pipe orifice made of the nylon material during the secondary pressing in, so that the generated nylon chips enter the product and are difficult to clean, and the internal cleanliness of the product is influenced. When the inner expansion plug is used for pressure testing, if the lining slips, the plug head has the potential safety hazard of flying out to hurt people under the action of internal high-pressure air.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, the utility model provides a pneumatic external seal formula leak hunting end cap of auto radiator.

The utility model discloses a realize like this, a pneumatic outer sealed formula leak hunting end cap of auto radiator is provided with:

a valve body;

the valve body is provided with a gas flow passage, the lower end of the valve body is clamped with a compression sliding sleeve, and a middle spacer sleeve is arranged inside the compression sliding sleeve;

a piston is movably arranged in the valve body, and the lower end of the piston is arranged at the inner side of the compression sliding sleeve;

a handle is arranged between the upper portions of the valve bodies, an air pipe connector is connected to the top of the piston, and the air pipe connector is arranged inside the handle.

Further, the middle spacer sleeve is arranged at the lower end of the piston, and sealing rings are respectively arranged between the middle spacer sleeve and the piston as well as between the middle spacer sleeve and the compression sliding sleeve.

Furthermore, a manual reversing valve is arranged on one side of the valve body.

Furthermore, two first air passages which are parallel to each other are arranged at the upper end of one side of the manual reversing valve on the valve body, and the middle parts of the two first air passages are communicated through a second air passage;

and a third air passage and a fourth air passage are arranged on one side of the manual reversing valve on the valve body, the third air passage is communicated with the first air passage positioned on the outer side, and the fourth air passage is communicated with the gas flow passage.

Furthermore, two sealing rings are arranged between the outer side of the upper end of the piston and the inner side of the handle; a sealing ring is arranged between the outer side of the piston and the inner side of the valve body; a sealing ring is arranged between the outer side of the upper end of the compression sliding sleeve and the inner side of the valve body; and a sealing ring is arranged between the piston and the compression sliding sleeve.

Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:

first, the utility model discloses a pneumatic switch control, the centre gripping is rapid, and the simple operation is laborsaving, and the shutoff tightness is guaranteed to the twice sealing washer, improves the accuracy of testing result.

Second, the utility model discloses the outer formula of rising is sealed can avoid taking out business turn over water pipe inlayed aluminum alloy bush, effectively avoids the phenomenon of gas leakage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pneumatic outer sealing type leakage detecting plug for an automobile radiator according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pneumatic outer sealing type leakage detecting plug for an automobile radiator according to an embodiment of the present invention;

in the figure: 1. a valve body; 2. compressing the sliding sleeve; 3. a piston; 4. a middle spacer sleeve; 5. a manual directional control valve; 6. a handle; 7. a gas pipe joint; 8. a first air passage; 9. a second air passage; 10. a third air passage; 11. a fourth airway; 12. a gas flow channel; 13. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Problem to prior art existence, the utility model provides a pneumatic outer sealed formula leak hunting end cap of auto radiator, it is right below combining the figure the utility model discloses do detailed description.

As shown in fig. 1 to fig. 2, the utility model provides a valve body 1, compress tightly sliding sleeve 2, piston 3, well spacer 4, manual directional control valve 5, handle 6, air pipe joint 7, first air flue 8, second air flue 9, third air flue 10, fourth air flue 11, gas flow 12, sealing washer 13.

The valve body 1 is provided with a gas flow passage 12, the lower end of the valve body 1 is connected with a compression sliding sleeve 2, and a middle spacer sleeve 4 is arranged inside the compression sliding sleeve 2;

a piston 3 is movably arranged in the valve body 1, and the lower end of the piston 3 is arranged at the inner side of the pressing sliding sleeve 2;

the upper portion of the valve body 1 is provided with a handle 6, the top of the piston 3 is connected with an air pipe connector 7, and the air pipe connector 7 is arranged inside the handle 6.

In this embodiment, the middle spacer sleeve 4 is disposed at the lower end of the piston 3, and the seal rings 13 are disposed between the middle spacer sleeve 4 and the piston 3, and between the middle spacer sleeve 4 and the pressing sliding sleeve 2, respectively.

In this embodiment, a manual directional valve 5 is disposed on one side of the valve body 1.

In the embodiment, the upper end of one side of the manual reversing valve 5 on the valve body 1 is provided with two mutually parallel first air passages 8, and the middle parts of the two first air passages 8 are communicated through a second air passage 9;

a third air passage 10 and a fourth air passage 11 are arranged on one side of the manual reversing valve 5 on the valve body 1, the third air passage 10 is communicated with a first air passage 8 positioned on the outer side, and the fourth air passage 11 is communicated with an air flow passage 12.

In this embodiment, two sealing rings 13 are arranged between the outer side of the upper end of the piston and the inner side of the handle; a sealing ring 13 is arranged between the outer side of the piston and the inner side of the valve body; a sealing ring 13 is arranged between the outer side of the upper end of the compression sliding sleeve and the inner side of the valve body; a sealing ring 13 is arranged between the piston and the pressing sliding sleeve.

The utility model discloses when pressing from both sides tightly: the compressed air enters from the pipe opening 10 and pushes the pipe opening 3 to move downwards, so that the pipe opening 4 moves downwards, and the compressed inner diameters of the O-shaped sealing rings on the two sides of the pipe opening 4 are reduced under the combined action of the compressed air and the compressed air, so that the outer wall of the pipe opening is sealed; at the moment, compressed gas for pressure test enters the product from the gas inlet 7 for leak detection; after the leakage detection is finished: the operation 5 changes an air inlet path, compressed air enters 11, and the pushing 3 resets, so that the 2 sealing rings recover (rebound from a compressed state), and the clamping is released.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.

Claims

1. The utility model provides a pneumatic outer sealed leak hunting end cap of auto radiator, its characterized in that, the pneumatic outer sealed leak hunting end cap of auto radiator is provided with:

a valve body;

the valve body is provided with a gas flow passage, the lower end of the valve body is connected with a compression sliding sleeve, and a middle spacer sleeve is arranged inside the compression sliding sleeve;

the movable part in the valve body is provided with a piston, and the lower end of the piston is arranged on the inner side of the compression sliding sleeve;

2. The pneumatic outer seal type leakage detecting plug for the automobile radiator as claimed in claim 1, wherein the middle spacer sleeve is arranged at the lower end of the piston, and sealing rings are respectively arranged between the middle spacer sleeve and the piston and between the middle spacer sleeve and the pressing sliding sleeve.

3. The pneumatic outer seal type leak detection plug for the automobile radiator as claimed in claim 1, wherein a manual reversing valve is arranged on one side of the valve body.

4. The pneumatic external sealing type leakage detecting plug for the automobile radiator as claimed in claim 1, wherein the upper end of one side of the manual reversing valve on the valve body is provided with two first air passages which are parallel to each other, and the middle parts of the two first air passages are communicated through a second air passage;

5. The pneumatic outer seal type leakage detecting plug for the automobile radiator as claimed in claim 1, wherein two sealing rings are arranged between the outer side of the upper end of the piston and the inner side of the handle; a sealing ring is arranged between the outer side of the piston and the inner side of the valve body; a sealing ring is arranged between the outer side of the upper end of the compression sliding sleeve and the inner side of the valve body; and a sealing ring is arranged between the piston and the compression sliding sleeve.