CN107101056B - Quick connector for crank case - Google Patents
Quick connector for crank case Download PDFInfo
- Publication number
- CN107101056B CN107101056B CN201710362722.5A CN201710362722A CN107101056B CN 107101056 B CN107101056 B CN 107101056B CN 201710362722 A CN201710362722 A CN 201710362722A CN 107101056 B CN107101056 B CN 107101056B
- Authority
- CN
- China
- Prior art keywords
- locking section
- hole
- clamping block
- male plug
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/035—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed around the spigot end before connection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M2013/0038—Layout of crankcase breathing systems
Abstract
The invention discloses a quick connector for a crank case, which comprises a male plug (1) and a connector body (2), wherein a convex disc (11) is arranged on the male plug (1), a locking device is arranged in the connector body (2), the locking device comprises a first locking section (31) and a second locking section (32), a first step surface (41) is formed between the second locking section (32) and the outer side of the first locking section (31), and a second step surface (42) is formed by through holes in the two locking sections; two clamping blocks (33) are arranged on the second locking section (32). The locking device provided by the invention has the advantages that the first locking section, the second locking section and the clamping block are respectively in mutual abutting connection with the corresponding positions of the convex disc and the connector body to form a stable fixed connection structure, the connection structure cannot be disassembled by external force, the use completeness of the PCV system is ensured, the structure is simple, the installation is stable, the cost is reduced, and the application range is wide.
Description
Technical Field
The invention relates to the field of automobile manufacturing, in particular to a quick connector for a crankcase.
Background
The quick connector of the existing structure can be quickly assembled and disassembled, but after the six standards of the automobile industry are implemented, if a crankcase ventilation (PCV) system is used in an automobile, an on-line monitoring is required by a production enterprise to ensure the integrity of the system, and the process requirement is difficult to meet the requirement on the quick connector which can be quickly assembled and disassembled, namely, the existing quick connector cannot meet the requirement on the connection of a crankcase (PCV) ventilation pipeline assembly and a crankcase which is not detachable or difficult to detach.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a quick crankcase connector which can be stably installed and can ensure the integrity of a PCV system.
The technical scheme of the invention is as follows:
the utility model provides a quick-operation joint of crankcase, includes male plug and joint body be equipped with the boss on the male plug the internal step through-hole that is equipped with of joint, be equipped with the lock in the step through-hole, the lock includes first locking section and second locking section, be equipped with first through-hole in the first locking section, be equipped with the second through-hole in the second locking section the drill way department of second through-hole is equipped with the flange, and the external diameter of this second locking section is greater than first locking section and forms first step face, the internal diameter of second through-hole is greater than first through-hole and forms the second step face be equipped with the third step face on the step face of step through-hole macropore end, first step face and third step face butt; two openings are formed in the second locking section, a clamping block is arranged at each opening, one end of each clamping block outwards protrudes out of the outer side surface of the second locking section, and the other end inwards protrudes into the inner cavity wall of the second locking section; the male plug stretches into the locking device, one end of the convex disc is abutted against the second step surface, the other end of the convex disc is abutted against the end surface of the stretching-in end of the clamping block, and the convex table surface of the outwards-protruded end of the clamping block is abutted against the inner side wall of the flange, so that the male plug is fixed on the connector body; the first locking section, the second locking section and the clamping block are integrally injection molded.
With the structure, the first locking section and the second locking section are arranged in the step through hole of the connector body, the first step surface formed by the outer side walls of the two locking sections is abutted with the corresponding step surface in the step through hole, after the male plug stretches into the locker, one end of the convex disc is abutted with the second step surface, the other end of the convex disc is abutted with the stretching end of the clamping block, the outwards-protruding part of the clamping block is abutted with the boss surface formed by the outer wall of the second locking section, and the inner side wall of the flange, so that the locker cannot be outwards pulled out under the abutting action of the clamping block and the flange, and meanwhile, the convex disc cannot be stretched into or pulled out under the limiting abutting action of the clamping block and the second step surface, and the male plug is fixed in the locker, namely in the connector body; because the position corresponding to the locking device on the connector body, except the step through hole position, other openings or disassembling positions are not arranged, the clamping block cannot be deformed and displaced under the action of external force, so that the male plug abutted with the clamping block cannot be loosened easily, once the male plug is inserted and fixed, the integrity of a PCV (crankcase ventilation) system can be ensured in the using process of a vehicle, the requirements of national six standards of the automobile industry can be met, and if the male plug is required to be disassembled and replaced, the clamping block can be pried only by a professional tool so as to assist in disassembling the male plug and the locking device.
In order to achieve the purpose of saving labor in the process of using the tool to disassemble and replace the male plug or the lock, preferably, the included angle between the central line of the clamping block and the central axis of the lock is 25 degrees.
In order to prevent the locking device from being forced in the connector body to move so as to influence the stability of connection, preferably, two plane ends are symmetrically arranged at the non-opening end position on the second locking section, and the plane ends are correspondingly arranged at the corresponding position of the inner wall of the connector body.
In order to further improve the stability of PCV system use, preferably, a circle of groove is arranged at the bottom of the first through hole at the position corresponding to the inner wall of the connector body, a sealing ring is embedded in the groove, and the sealing ring is abutted with the end face of the extending end of the first locking section.
In order to avoid interference of the clamping block when the clamping block is pried, so that the clamping block can move smoothly, preferably, the connection part of the convex disc and the male plug and the outer edge of the convex disc are of round corner structures.
The beneficial effects are that: the locking device provided by the invention has the advantages that the first locking section, the second locking section and the clamping block are respectively in mutual abutting connection with the corresponding positions of the convex disc and the connector body to form a stable fixed connection structure, the connection structure cannot be disassembled by external force, the use completeness of the PCV system is ensured, the structure is simple, the installation is stable, the cost is reduced, and the application range is wide.
Drawings
Fig. 1 is a schematic view of the mounting structure of the present invention.
Fig. 2 is a schematic structural view of the latch.
Fig. 3 is a disassembled flow chart of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the invention consists of a male plug 1, a connector body 2 and the like, wherein a convex disc 11 is arranged on the male plug 1, the joint of the convex disc 11 and the male plug 1, and the outer edge of the convex disc 11 is of a round corner structure; the connector comprises a connector body 2, and is characterized in that a step through hole is formed in the connector body 2, a locking device is arranged in the step through hole, the locking device comprises a first locking section 31, a second locking section 32 and a clamping block 33 which are integrally formed through injection molding, a first through hole 311 is formed in the first locking section 31, a circle of groove is formed in the bottom of the first through hole 311 at the position corresponding to the inner wall of the connector body 2, a sealing ring 5 is embedded in the groove, and the sealing ring 5 is abutted to the end face of the extending end of the first locking section 31.
The second locking section 32 is internally provided with a second through hole 321, a flange 322 is arranged at the orifice of the second through hole 321, the outer diameter of the second locking section 32 is larger than that of the first locking section 31 and forms a first step surface 41, the inner diameter of the second through hole 321 is larger than that of the first through hole 311 and forms a second step surface 42, a third step surface 43 is arranged on the step surface of the large hole end of the step through hole, and the first step surface 41 is in butt joint with the third step surface 43.
Two openings are formed in the second locking section 32, a clamping block 33 is arranged at each opening, one end of each clamping block 33 outwards protrudes out of the outer side surface of the second locking section 32, the other end inwards protrudes into and protrudes out of the inner cavity wall of the second locking section 32, and an included angle between the central line of the clamping block 33 and the central axis of the locking device is 25 degrees; two plane ends are symmetrically arranged at the non-opening end position of the second locking section 32, and plane ends are correspondingly arranged at the corresponding position of the inner wall of the connector body 2 in a matching way.
The male plug 1 extends into the locking device, one end of the convex disc 11 is abutted against the second step surface 42, the other end is abutted against the end surface of the extending end of the clamping block 33, and the boss surface of the outwards-protruded end of the clamping block 33 is abutted against the inner side wall of the flange 322, so that the male plug 1 is fixed on the connector body 2.
The application method of the invention is as follows:
as shown in fig. 1 to 3, the latch is disposed in a stepped through hole disposed in the connector body 2, the male plug 1 passes through the second through hole 321 and the first through hole 311 and extends into the connector body 2, the first latch segment 31 and the second latch segment 32 are disposed in the stepped through hole of the connector body 2, the first stepped surface 41 formed by the outer side walls of the two latch segments abuts against the third stepped surface 43 in the stepped through hole, after the male plug 1 extends into the latch, one end of the boss 11 abuts against the second stepped surface 42, the other end of the boss 11 abuts against the extending end of the latch 33, and the portion of the outwardly protruding portion of the latch 33 abuts against the inner side wall of the flange 322, so that the latch cannot be pulled out outwardly under the abutting action of the flange 33 and the flange 322, and at the same time, the boss 11 cannot be pulled into or pulled out under the limiting abutting action of the latch 33 and the second stepped surface 42, i.e., the male plug 1 is fixed in the connector body 2; because the position of the connector body 2 corresponding to the locking device is not provided with other openings or disassembly positions except the step through hole position, the clamping block 33 cannot be deformed and displaced under the action of external force, so that the male plug 1 abutted against the clamping block 33 cannot be easily loosened, once the male plug 1 is inserted and fixed, the integrity of a PCV (crankcase ventilation) system can be ensured in the using process of a vehicle, and the requirements of national six standards of the automobile industry can be met.
If the male plug is to be replaced, as shown by a, b and c in fig. 3, a professional tool (not labeled) is used to pry the clamping blocks 33 on both sides at the same time, so that the extending ends of the clamping blocks 33 rotate anticlockwise, as the root and the outer edge of the convex disc 11 are provided with round corner structures, the clamping blocks 33 cannot receive too great interference resistance when rotating, when the extending ends of the clamping blocks 33 leave the convex disc 11, the male plug 1 is pulled outwards, and when the edge of the convex disc 11 is abutted to the clamping blocks 33, the professional tool is taken out, and the male plug 1 is pulled out; after the male plug 1 is removed, the latch block 33 is rotated clockwise to restore the original state (as illustrated by d in fig. 3).
If the latch is to be removed and replaced, as shown in fig. 3 c, under the premise of no male plug 1, the clamping blocks 33 on both sides are simultaneously pried by special tools, the clamping blocks 33 rotate anticlockwise until the boss surface formed between the clamping blocks 33 and the second locking sections 32 leaves the abutting flange 322, the latch is pulled outwards to enable the outer side wall of the clamping blocks 33 to abut on the flange 322, at this time, the second locking sections 32 on the latch are not abutted and limited any more, and the removal can be completed by taking out the latch in a proper state.
Simple structure, the installation is stable, and the fixed position of butt is not fragile, long service life, application scope is wide.
The undescribed portions of the invention are consistent with the prior art and are not described in detail herein.
The foregoing is only the embodiments of the present invention, and therefore, the patent scope of the invention is not limited thereto, and all equivalent structures made by the description of the invention and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the invention.
Claims (5)
1. The utility model provides a crankcase quick-operation joint, includes male plug (1) and joint body (2), its characterized in that: the male plug (1) is provided with a convex disc (11), a step through hole is formed in the connector body (2), a locker is arranged in the step through hole and comprises a first locking section (31) and a second locking section (32), a first through hole (311) is formed in the first locking section (31), a second through hole (321) is formed in the second locking section (32), a flange (322) is arranged at an orifice of the second through hole (321), the outer diameter of the second locking section (32) is larger than that of the first locking section (31) and forms a first step surface (41), the inner diameter of the second through hole (321) is larger than that of the first through hole (311) and forms a second step surface (42), a third step surface (43) is arranged on the step surface at the large hole end of the step through hole, and the first step surface (41) is abutted with the third step surface (43); two openings are formed in the second locking section (32), a clamping block (33) is arranged at each opening, one end of each clamping block (33) outwards protrudes out of the outer side surface of the second locking section (32), and the other end inwards protrudes into the inner cavity wall of the second locking section (32); the male plug (1) stretches into the locking device, one end of the convex disc (11) is abutted against the second step surface (42), the other end of the convex disc is abutted against the end surface of the stretching end of the clamping block (33), and the convex surface of the outwards-protruded end of the clamping block (33) is abutted against the inner side wall of the flange (322), so that the male plug (1) is fixed on the connector body (2); the first locking section (31), the second locking section (32) and the clamping block (33) are integrally injection molded.
2. The crankcase quick connector of claim 1, wherein: the included angle between the central line of the clamping block (33) and the central axis of the locking device is 25 degrees.
3. The crankcase quick connector of claim 1, wherein: two plane ends are symmetrically arranged at the non-opening end position of the second locking section (32), and the plane ends are correspondingly arranged at the corresponding position of the inner wall of the joint body (2) in a matching way.
4. The crankcase quick connector of claim 1, wherein: a circle of groove is formed in the bottom of the first through hole (311) at the position corresponding to the inner wall of the joint body (2), a sealing ring (5) is embedded in the groove, and the sealing ring (5) is abutted to the end face of the extending end of the first locking section (31).
5. The crankcase quick connector of claim 1, wherein: the connection part of the convex disc (11) and the male plug (1) and the outer edge of the convex disc (11) are of round corner structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362722.5A CN107101056B (en) | 2017-05-22 | 2017-05-22 | Quick connector for crank case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362722.5A CN107101056B (en) | 2017-05-22 | 2017-05-22 | Quick connector for crank case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107101056A CN107101056A (en) | 2017-08-29 |
| CN107101056B true CN107101056B (en) | 2023-04-25 |
Family
ID=59670586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362722.5A Active CN107101056B (en) | 2017-05-22 | 2017-05-22 | Quick connector for crank case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107101056B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591654B (en) * | 2018-03-09 | 2023-09-19 | 重庆溯联汽车零部件有限公司 | Quick joint for cooling pipeline |
| CN113028169B (en) * | 2021-04-20 | 2022-05-24 | 刘巧平 | Gas pipeline laid by town road transport network |
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| CN107101056A (en) | 2017-08-29 |
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