CN105909366B - Anti-leakage device for filling port of automobile expansion kettle and processing method thereof - Google Patents

Anti-leakage device for filling port of automobile expansion kettle and processing method thereof Download PDF

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Publication number
CN105909366B
CN105909366B CN201610293015.0A CN201610293015A CN105909366B CN 105909366 B CN105909366 B CN 105909366B CN 201610293015 A CN201610293015 A CN 201610293015A CN 105909366 B CN105909366 B CN 105909366B
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CN
China
Prior art keywords
copper nut
nut insert
wall
expansion kettle
leakage
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CN201610293015.0A
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Chinese (zh)
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CN105909366A (en
Inventor
方举
刘祖俊
何斌
黄林
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Anhui Zhicheng Electromechanical Spare Parts Co ltd
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Anhui Zhicheng Electromechanical Spare Parts Co ltd
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Priority to CN201610293015.0A priority Critical patent/CN105909366B/en
Publication of CN105909366A publication Critical patent/CN105909366A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204Filling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00Applications
    • F01P2050/22Motor-cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Instrument Panels (AREA)

Abstract

The invention aims to provide a leakage-proof device for a filling port of an automobile expansion kettle and a processing method thereof, wherein the leakage-proof device comprises the expansion kettle, the filling port is arranged on the expansion kettle, the leakage-proof device is arranged in the filling port, the filling port comprises a connecting block, an outer ring sleeve and a copper nut insert, the connecting block is fixed on the expansion kettle, the outer ring sleeve and the copper nut insert are arranged on the connecting block, the outer ring sleeve is sleeved on the outer wall of the copper nut insert, the copper nut insert is shaped like a concentric cylinder, the inner wall of the copper nut insert is provided with uniform threads, the outer wall and the bottom of the copper nut insert are provided with grooves, the inner wall of the outer ring sleeve is provided with a fixing block, the fixing block corresponds to the grooves in the copper nut insert in shape and position, the leakage at the position is blocked, the.

Description

Anti-leakage device for filling port of automobile expansion kettle and processing method thereof
Technical Field
The invention relates to the field of automobile equipment and parts, in particular to improvement on the processing technology and equipment of automobile auxiliary equipment and parts, and particularly relates to a leakage-proof device for a filling opening of an automobile expansion kettle and a processing method.
Background
Along with the development of economy in China, the living standard of people is greatly increased, the living standard is improved, people also enter a rapid rising stage in the aspect of automobile development, the requirement on auxiliary equipment of automobiles is relatively high, for example, an expansion kettle is arranged on a heat dissipation device of an engine on an automobile at the present stage, in the aspect of heat dissipation of the engine, the expansion kettle is basically adopted for heat dissipation, and as the working principle of the expansion kettle is that the indoor air pressure is increased along with the temperature, further triggering the switch, therefore, the expansion kettle has higher requirement on air tightness, and therefore, a more reasonable structure and a more precise processing method are needed, in the prior fixing device, the copper nut injection molding piece generates a gap after being locally expanded due to different contraction ratios of materials under high and low temperature environments, so that the leakage problem occurs, and the air tightness is seriously influenced.
Therefore, the leakage-proof device for the filling port of the automobile expansion kettle and the processing method are provided, so that the rectangular groove can be designed from the outside of the insert and the low plane through the design of the shrinkage reverse rib of the copper nut insert, and because of the difference of shrinkage directions, two positions always make up the gap result generated at the other position, the leakage at the position is blocked, the gap variation is reduced, the air tightness is improved, and the heat dissipation efficiency is increased, thereby being the problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a leakage-proof device for a filling opening of an automobile expansion kettle and a processing method, so that a rectangular groove can be designed from the outer part and the low plane of an insert through the design of a shrinkage reverse rib of a copper nut insert, and because the shrinkage directions are different, two positions always make up a gap result generated at the other position, the leakage at the position is blocked, the gap variation is reduced, the air tightness is improved, and the heat dissipation efficiency is increased.
In order to solve the technical problems in the background technology, the invention adopts the following technical scheme:
the utility model provides a car inflation kettle filler prevents leaking device, includes the inflation kettle, the inflation kettle on be equipped with the filler, still including preventing leaking the device, prevent leaking the device setting in the filler.
Preferably, the filling port comprises a connecting block, an outer ring sleeve and a copper nut insert, the connecting block is fixed on the expansion kettle, the outer ring sleeve and the copper nut insert are arranged on the connecting block, the outer ring sleeve is sleeved on the outer wall of the copper nut insert, the copper nut insert is concentric, the inner wall of the copper nut insert is provided with uniform threads, the outer wall and the bottom of the copper nut insert are provided with grooves, the inner wall of the outer ring sleeve is provided with a fixing block, and the shape and the position of the groove on the fixing block and the shape and the position of the groove on the copper nut insert are corresponding.
Preferably, the bottom of the copper nut insert and the groove in the outer wall form a 90-degree angle therebetween, so that the restriction during the thermal expansion can be performed at a right angle, the gap generated by different deformation during expansion and contraction is reduced, and the air tightness at the interface is improved.
Preferably, the shape of recess be the rectangle, fix through the rectangle shape, can make fixed more stable, be difficult for producing when the atress and drop by oneself.
A processing method of a leakage-proof device for a filling opening of an automobile expansion kettle comprises the following steps:
the copper nut insert is of a concentric circle structure, the copper nut insert is placed on a corresponding grooving device during machining, rectangular grooves meeting requirements are ground on the outer wall and the bottom of the copper nut insert, then the copper nut insert with the grooves are placed in a grinding tool of the filling port to mold the outer ring sleeve, then the copper nut insert is placed in a constant temperature environment at 60-70 ℃ to mold, finally the processed filling port is taken out of the grinding tool, and the copper nut insert is cooled to room temperature.
Preferably, the polishing precision Ra of the groove is set to be 0.05-0.1 max/mum, the polishing precision of the surface of the groove during processing is controlled, the connecting area of the inner surface of the groove and the fixed block is increased, the friction force between the inner surface of the groove and the fixed block is increased, and the pit deformation stress when the groove is stressed is improved.
Preferably, the molding time of the mold is set to be 25-30 min, and the time of the mold is limited, so that the degree of the mold can be more accurately grasped, and the quality and the efficiency of the mold are improved.
The invention has the beneficial effects that:
1) the reverse muscle design of shrink through the copper nut mold insert, from the outside of mold insert and low plane design rectangular channel, because of the difference of shrink direction, two department always compensate the gap result that another department produced, have blocked here and have leaked.
2) The gap variation is reduced, the air tightness is improved, and the heat dissipation efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a front view of an embodiment of a leak-proof device for a filling port of an expansion tank of an automobile according to the present invention;
fig. 2 is a partial schematic view of a filling port of an embodiment of the leakage-proof device for the filling port of the expansion tank of the automobile.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the device for preventing leakage of the filling opening of the expansion kettle of the automobile comprises an expansion kettle 1, wherein the filling opening 2 is arranged on the expansion kettle 1, and the device for preventing leakage is arranged in the filling opening 2.
In this embodiment, filler 2 include connecting block 3, outer loop cover 4 and copper nut inlay 5 pieces, connecting block 4 fix on expansion kettle 1, outer loop cover 4 and copper nut mold insert 5 all establish on connecting block 3, outer loop cover 4 cover the outer wall at copper nut mold insert 5, copper nut mold insert 5 shape be concentric cylinder, copper nut mold insert 5 inner wall be equipped with even screw thread 6, the outer wall and the bottom of copper nut mold insert 5 on all be equipped with recess 7, outer loop cover 4 inner wall on be equipped with fixed block 8, fixed block 8 and copper nut mold insert 5 on recess 7 shape and the position corresponding.
In this embodiment, the recess 7 between 5 bottoms of copper nut mold insert and on the outer wall be 90 degrees angles, restriction when can carrying out the right angle and carry out thermal energy reduces the clearance that produces the different productions of deformation when the expansion and contraction, improves the gas tightness of kneck.
In this embodiment, the shape of recess 7 be the rectangle, fix through the rectangle shape, can make fixed more stable, be difficult for producing when the atress and drop by oneself.
A processing method of a leakage-proof device for a filling opening of an automobile expansion kettle comprises the following steps: :
the copper nut insert 5 is of a concentric circle structure, the copper nut insert 5 is placed on a corresponding grooving device during machining, the outer wall and the bottom of the copper nut insert 5 are ground into a rectangular groove 7 meeting requirements, then the copper nut insert 5 with the groove 7 is placed into a grinding tool of the filling port 2 to mold the outer ring sleeve 4, then the copper nut insert is placed into a constant temperature environment with the temperature of 70 ℃ to mold, finally the finished filling port 2 is taken out of the grinding tool and cooled to the room temperature.
In this embodiment, the polishing precision Ra of the groove is set to 0.05max/μm, the polishing precision of the groove surface during processing is controlled, the connection area between the inner surface of the groove and the fixed block is increased, the friction force between the inner surface of the groove and the fixed block is increased, and the pit variable stress when the groove is stressed is improved.
In this embodiment, the molding time of the mold is set to 30min, and the time of the mold is limited, so that the degree of the mold can be more accurately grasped, and the quality and efficiency of the mold can be improved.
With the reverse muscle design of shrink of copper nut mold insert 5, all be equipped with rectangle recess 7 in the side and the bottom of copper nut mold insert 5, have 90 degrees contained angles between the recess 7, because of the difference of shrink direction, make the shrink between two recesses 7 receive the restriction, two department always compensate the gap result that another department produced, blocked here and leaked, increase the gas tightness of kneck.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (1)

1. A leakage-proof device for a filling opening of an automobile expansion kettle comprises the expansion kettle, wherein the expansion kettle is provided with a filling opening, the leakage-proof device is arranged in the filling opening, the filling opening comprises a connecting block, an outer ring sleeve and a copper nut insert, the connecting block is fixed on the expansion kettle, the outer ring sleeve and the copper nut insert are both arranged on the connecting block, the outer ring sleeve is sleeved on the outer wall of the copper nut insert, the leakage-proof device is characterized in that the copper nut insert is shaped like a concentric cylinder, the inner wall of the copper nut insert is provided with uniform threads, the outer wall and the bottom of the copper nut insert are both provided with grooves, the inner wall of the outer ring sleeve is provided with a fixing block, the fixing block corresponds to the grooves on the copper nut insert in shape and position, and an angle of 90 degrees is formed between the bottom of the copper nut insert and the grooves on the outer wall, the shape of the groove is rectangular.
CN201610293015.0A 2016-04-30 2016-04-30 Anti-leakage device for filling port of automobile expansion kettle and processing method thereof Active CN105909366B (en)

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Application Number Priority Date Filing Date Title
CN201610293015.0A CN105909366B (en) 2016-04-30 2016-04-30 Anti-leakage device for filling port of automobile expansion kettle and processing method thereof

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Application Number Priority Date Filing Date Title
CN201610293015.0A CN105909366B (en) 2016-04-30 2016-04-30 Anti-leakage device for filling port of automobile expansion kettle and processing method thereof

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CN105909366A CN105909366A (en) 2016-08-31
CN105909366B true CN105909366B (en) 2020-04-03

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762094A (en) * 2017-03-10 2017-05-31 江苏鑫通汽车部件有限公司 A kind of automobile expansion tank

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT297424B (en) * 1968-07-22 1972-03-27 Industriebedarf Ges M B H Pipe socket connection
NL1012656C1 (en) * 1999-07-20 1999-09-27 Wouwseweg Beheer B V Coupler for plastic pipework in water supply installation
WO2006047244A2 (en) * 2004-10-21 2006-05-04 Flexcon Industries Plastic fiber wound pressure tank
CN1870322A (en) * 2005-05-25 2006-11-29 深圳市牧己实业有限公司 Adaptive sealing method and sealing method for polar column of lead-acid battery
CN202419015U (en) * 2011-12-31 2012-09-05 浙江龙越管业有限公司 Internal threaded joint used for injection-molding body of pipe fitting
CN202451265U (en) * 2012-02-17 2012-09-26 中国重汽集团济南动力有限公司 Expansion water tank assembly
US9146137B2 (en) * 2012-12-12 2015-09-29 Amtrol Licensing Inc. Air cell indicator
CN203517131U (en) * 2013-06-14 2014-04-02 广东联塑科技实业有限公司 Injection molding fitting with copper insert
CN203756310U (en) * 2014-03-27 2014-08-06 安徽江淮汽车股份有限公司 Expansion kettle
CN203978593U (en) * 2014-06-06 2014-12-03 象山博宇汽车模塑制造有限公司 Expansion kettle and vehicle thereof
CN205117481U (en) * 2015-11-04 2016-03-30 上海联谊汽车拖拉机工贸有限公司 Expansion water tank
CN205779203U (en) * 2016-04-30 2016-12-07 安徽志诚机电零部件有限公司 A kind of automobile expansion tank filler device for preventing leakage

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Denomination of invention: The invention relates to an anti leakage device for the filling port of an automobile expansion kettle and a processing method thereof

Effective date of registration: 20210326

Granted publication date: 20200403

Pledgee: Shucheng branch of the Industrial Commercial Bank of China Ltd.

Pledgor: ANHUI ZHICHENG ELECTROMECHANICAL SPARE PARTS Co.,Ltd.

Registration number: Y2021980002227