CN202886066U - Plugging head for airtightness detection of heat exchanger - Google Patents
Plugging head for airtightness detection of heat exchanger Download PDFInfo
- Publication number
- CN202886066U CN202886066U CN201220508865.5U CN201220508865U CN202886066U CN 202886066 U CN202886066 U CN 202886066U CN 201220508865 U CN201220508865 U CN 201220508865U CN 202886066 U CN202886066 U CN 202886066U
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- piston
- mandrel
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- tail end
- cylinder
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Abstract
The utility model provides a plugging head for the airtightness detection of a heat exchanger. A piston cylinder sleeve is sleeved on the upper end of a piston. A rapid plugging pipe joint is mounted on the side wall of the piston cylinder sleeve. The front end of a mandrel extends out of an upper port of the piston cylinder sleeve. The piston is mounted into the piston cylinder sleeve through the tail end of the mandrel. The mandrel is internally provided with a hole which is unblocked from top to bottom. A port at the tail end of the mandrel is internally provided with a fastening member. The fastening member is internally provided with a through hole communicated with the hole in the interior of the mandrel. A rod portion of the fastening member extends into the port at the tail end of the mandrel. The head portion of the fastening member is clamped outside the port at the tail end of the mandrel. A retaining ring is arranged between the head portion of the fastening member and the port at the tail end of the mandrel. A sealing ring is arranged between the retaining ring and the bottom of the piston. The top end of the mandrel is connected with a rapid screwing pipe joint through a transition joint. According to the utility model, the expansion of a silica gel loop is realized through movements of the piston; the piston is repositioned through the repositioning force of the silica gel loop after the detection is finished; the time for the installation of the whole plugging head is effectively shortened; the production efficiency is increased; and the plugging head is simple and convenient.
Description
Technical field
The utility model relates to the plugging mechanism that a kind of automotive heat exchanger impermeability detects, the airtight detection block head of especially a kind of heat interchanger.
Background technology
The heat interchanger that uses on the automobile need to block head with the import and export shutoff of heat interchanger and guarantee that leak detector communicates with heat interchanger inside by this block head, make itself and atmospheric environment form isolation when carrying out airtight detection.In addition and since the heat interchanger size on the automobile according to the difference of design parameter and ever-changing, the block head adaptability of traditional approach is relatively poor, often can not adapt to the less heat interchanger of some shapes, causes that checking efficiency is low, detecting reliability is poor.
Summary of the invention
The purpose of this utility model provides the airtight detection block head of a kind of heat interchanger, can reach higher adaptability, improves checking efficiency and the detecting reliability of heat interchanger.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: the airtight detection block head of heat interchanger, it is characterized in that: comprise piston, piston-cylinder, mandrel, described piston-cylinder is sleeved on the upper end of piston, fast spigot joint is housed on the sidewall of piston-cylinder, the front end of mandrel stretches out from the upper port of piston-cylinder, piston is encased in the piston-cylinder from the tail end of mandrel, the inside of mandrel is provided with the hole of up/down perforation, be provided with securing member in the port of mandrel tail end, the inside of securing member is provided with the through hole that is communicated with the hole of mandrel inside, the bar section of securing member extend in the port of mandrel tail end, the head of securing member is stuck in the port outside of mandrel tail end, be provided with back-up ring between the port of the head of securing member and mandrel tail end, be provided with O-ring seal between the bottom of back-up ring and piston, the top of mandrel is connected with the fast pipe adapter of twisting by crossover sub.
To improvement of the technical scheme: the outer wall of described piston is provided with the O RunddichtringO corresponding with the cylinder mouth of piston-cylinder; Mandrel is provided with a plurality of O RunddichtringOs corresponding with piston-cylinder through hole and piston inner hole.
To further improvement in the technical proposal: set O-ring seal is silica gel ring between the bottom of described back-up ring and piston, and the securing member in the mandrel tail end port is hex bolts.
Beneficial effect:
Use the airtight detection block head of heat interchanger described in the utility model, by the mobile expansion that realizes silica gel ring of piston, detect the rear recuperability by silica gel ring of end and make the piston reposition.This block head has effectively shortened the set-up time of whole block head, has improved production efficiency, and simple, convenient.Because the small volume of mechanism has improved the scope of application of this mechanism greatly, effectively reduced the set-up time of block head simultaneously, increased work efficiency; It is less that this block head mechanism volume can design, and is specially adapted to Mini-type heat exchanger; Overall weight is light, reduces labor strength; Easy to operate, quick, size and compressed-air actuated pressure by adjusting this mechanism just can satisfy different shutoff requirements, and applied widely, the serious forgiveness of the heat exchanger mouth of pipe is fine, are applicable to malleation, two kinds of leak detection environment of negative pressure.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The airtight detection block head of the utility model heat interchanger as shown in Figure 1, comprise piston 9, piston-cylinder 7, mandrel 3, the front end of described mandrel 3 passes piston-cylinder 7 and fixing with nut 4, fast spigot joint 6 is housed on the sidewall of piston-cylinder 7, piston 9 is assembled in the piston-cylinder 7 from the tail end of mandrel 3, the inside of mandrel 3 is provided with the hole 13 of up/down perforation, be provided with hex bolts 12 in the port of mandrel 3 tail ends, the inside of hex bolts 12 is provided with the through hole 14 that is communicated with the hole 13 of mandrel 3 inside, the bar section of hex bolts 12 extend in the port of mandrel 3 tail ends, the head of hex bolts 12 is stuck in the port outside of mandrel 3 tail ends, be provided with back-up ring 11 between the port of the head of hex bolts 12 and mandrel 3 tail ends, be provided with silica gel ring 10 between the bottom of back-up ring 11 and piston 9, the front end of mandrel 3 is connected with the fast pipe adapter 1 of twisting by crossover sub 2; The outer wall of piston 9 is provided with 1 O RunddichtringO corresponding with the cylinder mouth of piston-cylinder 7; Mandrel 3 is provided with 1 O RunddichtringO with piston-cylinder 7 cooperation places, is provided with 2 O RunddichtringOs with piston 9 endoporus cooperation places.
Described mandrel 3 tops can be fixed on the frame 5 by hex-head nut 4, and the upper end is connected with leak locator by the fast pipe adapter 1 of twisting.Pressurized air is connected with piston-cylinder 7 by fast spigot joint 6 behind pressure regulator valve, air valve, and four O type circles 8 play shutoff gas circuit and the buffer action that detects gas circuit.
The utility model utilizes the principle of cylinder mechanism, when carrying out the heat interchanger leak detection, axis fore-end with block head stretches in the heat interchanger mouth of pipe that needs to detect first, then open air valve, pressurized air is injected in the piston-cylinder, the stressed silica gel ring that moves forward compression axis front end along axis of piston fix owing to being in the back-up ring of axis front end, thereby silica gel ring is out of shape the purpose that reaches quick blocking under the extruding of piston like this.After detection is finished, switch air valve, piston-cylinder is communicated with atmosphere by tracheae, piston is return under the effect of silica gel ring recuperability, thereby unclamps workpiece.
Claims (3)
1. the airtight detection block head of heat interchanger, it is characterized in that: comprise piston, piston-cylinder, mandrel, described piston-cylinder is sleeved on the upper end of piston, fast spigot joint is housed on the sidewall of piston-cylinder, the front end of mandrel stretches out from the upper port of piston-cylinder, piston is encased in the piston-cylinder from the tail end of mandrel, the inside of mandrel is provided with the hole of up/down perforation, be provided with securing member in the port of mandrel tail end, the inside of securing member is provided with the through hole that is communicated with the hole of mandrel inside, the bar section of securing member extend in the port of mandrel tail end, the head of securing member is stuck in the port outside of mandrel tail end, be provided with back-up ring between the port of the head of securing member and mandrel tail end, be provided with O-ring seal between the bottom of back-up ring and piston, the top of mandrel is connected with the fast pipe adapter of twisting by crossover sub.
2. the airtight detection block head of heat interchanger according to claim 1, it is characterized in that: the outer wall of described piston is provided with the O RunddichtringO corresponding with the cylinder mouth of piston-cylinder; Mandrel is provided with a plurality of O RunddichtringOs corresponding with piston-cylinder through hole and piston inner hole.
3. the airtight detection block head of heat interchanger according to claim 1 and 2, it is characterized in that: set O-ring seal is silica gel ring between the bottom of described back-up ring and piston, the securing member in the mandrel tail end port is hex bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220508865.5U CN202886066U (en) | 2012-10-06 | 2012-10-06 | Plugging head for airtightness detection of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220508865.5U CN202886066U (en) | 2012-10-06 | 2012-10-06 | Plugging head for airtightness detection of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886066U true CN202886066U (en) | 2013-04-17 |
Family
ID=48077480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220508865.5U Expired - Fee Related CN202886066U (en) | 2012-10-06 | 2012-10-06 | Plugging head for airtightness detection of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886066U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157930A (en) * | 2015-05-18 | 2015-12-16 | 共享装备有限公司 | Pressure detection device for rough casting with cavity being elongated through hole |
| CN106153259A (en) * | 2015-04-22 | 2016-11-23 | 石家庄安瑞科气体机械有限公司 | Air seal test frock and air tight test method |
| CN106441717A (en) * | 2016-10-20 | 2017-02-22 | 苏州天沃科技股份有限公司 | Pressure test plug for heat exchange tube |
| CN108318191A (en) * | 2018-02-27 | 2018-07-24 | 萝北奥星新材料有限公司 | A kind of suction type graphite heat exchanger detection method |
| CN108387345A (en) * | 2018-02-27 | 2018-08-10 | 萝北奥星新材料有限公司 | A kind of heat exchanger tube repair method of graphite heat exchanger |
| CN111022817A (en) * | 2019-12-05 | 2020-04-17 | 烽禾升医疗设备（昆山）有限公司 | Floating plugging type airtight mechanism for pipe structures |
| CN112064074A (en) * | 2020-09-22 | 2020-12-11 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
-
2012
- 2012-10-06 CN CN201220508865.5U patent/CN202886066U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153259A (en) * | 2015-04-22 | 2016-11-23 | 石家庄安瑞科气体机械有限公司 | Air seal test frock and air tight test method |
| CN106153259B (en) * | 2015-04-22 | 2020-04-24 | 石家庄安瑞科气体机械有限公司 | Air tightness test tool and air tightness test method |
| CN105157930A (en) * | 2015-05-18 | 2015-12-16 | 共享装备有限公司 | Pressure detection device for rough casting with cavity being elongated through hole |
| CN106441717A (en) * | 2016-10-20 | 2017-02-22 | 苏州天沃科技股份有限公司 | Pressure test plug for heat exchange tube |
| CN106441717B (en) * | 2016-10-20 | 2019-01-01 | 张化机（苏州）重装有限公司 | The pressure testing plug of heat exchanger tube |
| CN108318191A (en) * | 2018-02-27 | 2018-07-24 | 萝北奥星新材料有限公司 | A kind of suction type graphite heat exchanger detection method |
| CN108387345A (en) * | 2018-02-27 | 2018-08-10 | 萝北奥星新材料有限公司 | A kind of heat exchanger tube repair method of graphite heat exchanger |
| CN108318191B (en) * | 2018-02-27 | 2020-01-17 | 萝北奥星新材料有限公司 | Detection method for negative pressure type graphite heat exchanger |
| CN111022817A (en) * | 2019-12-05 | 2020-04-17 | 烽禾升医疗设备（昆山）有限公司 | Floating plugging type airtight mechanism for pipe structures |
| CN112064074A (en) * | 2020-09-22 | 2020-12-11 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
| CN112064074B (en) * | 2020-09-22 | 2021-09-14 | 苏州浩耐特磨具有限公司 | Air tightness control device and method applied to electroplated grinding wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430056 Maple five road, Wuhan economic and Technological Development Zone, Hubei Patentee after: DONGFENG MALE THERMAL SYSTEM Co.,Ltd. Address before: 430056 Maple five road, Wuhan economic and Technological Development Zone, Hubei Patentee before: DONGFENG BEHR THERMAL SYSTEMS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211006 |