CN212177814U - Ventilation plug structure - Google Patents
Ventilation plug structure Download PDFInfo
- Publication number
- CN212177814U CN212177814U CN202020690755.XU CN202020690755U CN212177814U CN 212177814 U CN212177814 U CN 212177814U CN 202020690755 U CN202020690755 U CN 202020690755U CN 212177814 U CN212177814 U CN 212177814U
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- China
- Prior art keywords
- hole
- plug structure
- cock
- cock body
- plug
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- 238000009423 ventilation Methods 0.000 title description 4
- 230000013011 mating Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 7
- 238000013022 venting Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a breather plug structure, including the cock lid, the cock body that is connected with the axle head of axle, the cock lid is detained in the one end of cock body back of the body off-axis, and the cock body is internal to be equipped with the cock body hole that is linked together with axle head axial hole, the cock body hole is through internal thread hole, lateral wall hole has been seted up to the lateral wall of axle, and lateral wall hole is linked together with axle head axial hole. The utility model discloses a breather plug structure, through the design in the inside through internal thread hole of cock body, the area of increase contact oil-gas mixture, oil drips and easily blocks in screw hole department, realizes oil-gas separation to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of the car, concretely relates to breather plug structure.
Background
Common ventilation plug structure of motor transmission generally adopts open or closed ventilation plug structure always, in the use, is difficult for realizing oil-gas separation, and oil-gas mixture adheres to the dust deposit easily or has the oil impregnate phenomenon, causes the customer to complain.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art. Therefore, the utility model provides a breather plug structure, the purpose realizes oil-gas separation.
In order to realize the purpose, the utility model discloses the technical scheme who takes does:
the utility model provides a breather plug structure, includes the cock lid, the cock body that is connected with the axle head of axle, and the cock lid is detained in the one end of cock body back off-axis, is equipped with the cock body hole that is linked together with axle head axial hole in the cock body, the cock body hole is through internal thread hole, lateral wall hole has been seted up to the lateral wall of axle, and lateral wall hole is linked together with axle head axial hole.
The front end of the plug body is in clearance fit with the axial inner hole of the shaft end.
The middle part of the plug body is provided with an external thread connecting section which is matched and connected with the internal thread of the carrier, and the external diameter of the external thread connecting section is larger than that of the front end of the plug body.
The plug body is provided with a limiting boss, and the limiting boss is positioned at the tail end of the external thread connecting section.
The axial line of the side wall hole is vertical to the axial line of the axial inner hole of the shaft end.
The vent plug structure is a normally open vent plug structure.
The utility model has the advantages that: the utility model discloses a breather plug structure, through the design in the inside through internal thread hole of cock body, increase contact oil gas mixture's area, oil drips and easily blocks in threaded hole department, realizes oil-gas separation to a certain extent, reaches the exhaust purpose.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic view of the vent plug of the present invention;
fig. 2 is a schematic view of an assembly structure of the vent plug structure of the present invention.
Labeled as:
1. the plug comprises a plug cover, 2, a plug body, 3, a shaft, 4, a plug body inner hole, 5, a side wall hole, 6, an external thread connecting section, 7, a limiting boss, 8 and a carrier.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation. It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 2, a breather plug structure for an automobile transmission comprises a plug cover 1 and a plug body 2 connected with the shaft end of a shaft 3, wherein the plug cover 1 is buckled at one end of the plug body 2 departing from the shaft 3, a plug body inner hole 4 communicated with the shaft end axial inner hole is arranged in the plug body 2, the plug body inner hole 4 is a through type internal thread hole, a side wall hole 5 is arranged on the side wall of the shaft 3, and the side wall hole 5 is communicated with the shaft end axial inner hole. When the hole is opened, the axial drilling hole at the shaft end is communicated with the drilling hole at the side wall of the shaft. Through the design of the through type internal thread hole in the plug body, the area of contacting an oil-gas mixture is increased, condensed oil drops are blocked at the threaded hole, and oil-gas separation is realized to a certain extent.
The connection mode of cock body and axle can adopt the connection structure among the prior art to realize, and preferably, the front end of cock body 2 and axle head axial hole clearance fit. When the specific arrangement is adopted, the size of the fit clearance is preferably 0.5-1 mm. When the air vent plug is installed, the front end of the air vent plug is inserted into the axial hole of the shaft end.
In order to facilitate the matching connection of the plug body and the plug cover, the plug body is provided with a clamping boss, so that the plug cap is convenient to buckle. The bottom of the ventilating plug cap is provided with a hook-shaped inner edge matched with the clamping boss, and the surface of the hook-shaped inner edge is arc-shaped, so that the plug cap can be conveniently buckled on the plug body. The structure arrangement can limit the venting plug cap from dropping off the venting plug body, and simultaneously prevent external dust and rainwater from entering the venting plug body, thereby achieving the waterproof and dustproof effects. An exhaust gap can be arranged between the inner cavity of the venting plug cap and the clamping boss.
In order to guarantee that the stopper body is better spacing to be installed on the carrier, the middle part of stopper body 2 is equipped with the external screw thread connection section 6 of being connected with the internal screw thread cooperation of carrier 8, and the external diameter of external screw thread connection section 6 is greater than the external diameter of stopper body front end. In order to facilitate the limiting of the vent plug after being assembled with the carrier, the plug body 2 is provided with a limiting boss 7, and the limiting boss 7 is positioned at the tail end of the external thread connecting section 6.
The side wall holes can be inclined holes, vertical holes and the like, and when the side wall holes are specifically arranged, the side wall holes are drilled on the two side walls of the shaft end, so that the axis of each side wall hole is perpendicular to the axis of the axial inner hole of the shaft end. The two side wall holes are symmetrically arranged, and the axes of the two side wall holes are positioned on the same straight line. The structure arrangement optimizes the structure layout, and is convenient for throwing out lubricating oil.
The working principle of adopting the structure of the vent plug is as follows: the axle is rotary motion, and lubricating oil throws away from the lateral wall is downthehole in the shaft hole, and the plug body in through internal thread hole is passed through to the sub-unit oil gas mixture back, and oil drips and is blockked by the screw hole, realizes oil-gas separation, realizes the exhaust purpose.
The utility model provides a gearbox breather plug structure adopts the normal open breather plug structure, and the breather plug normally installs at the carrier mounted position according to the technological requirement, and during the inspection of assembly gas tightness, the breather plug embolias the technology rubber sleeve. After practical application, the vent plug has no obvious oil stain on the appearance and less dust deposition.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (6)
1. The utility model provides a breather plug structure, includes the cock lid, the cock body that is connected with the axle head of axle, and the cock lid is detained in the one end of cock body back off-axis, is equipped with the cock body hole that is linked together with axle head axial hole in the cock body, its characterized in that, cock body hole is through internal thread hole, lateral wall hole has been seted up to the lateral wall of axle, and lateral wall hole is linked together with axle head axial hole.
2. The vent plug structure of claim 1, wherein the front end of the plug body is a clearance fit with the axial bore of the shaft end.
3. The vent plug structure of claim 1, wherein the plug body has a central portion provided with an externally threaded connecting section for mating engagement with the internal threads of the carrier, the externally threaded connecting section having an outer diameter greater than an outer diameter of the plug body forward end.
4. The vent plug structure according to claim 3, wherein the plug body is provided with a limiting boss, and the limiting boss is located at the end of the external thread connecting section.
5. The vent plug structure of claim 1, wherein the axis of the sidewall bore is perpendicular to the axis of the axial bore of the shaft end.
6. The vent plug structure of claim 1, wherein the vent plug structure is a normally open vent plug structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690755.XU CN212177814U (en) | 2020-04-29 | 2020-04-29 | Ventilation plug structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020690755.XU CN212177814U (en) | 2020-04-29 | 2020-04-29 | Ventilation plug structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177814U true CN212177814U (en) | 2020-12-18 |
Family
ID=73766097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020690755.XU Active CN212177814U (en) | 2020-04-29 | 2020-04-29 | Ventilation plug structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177814U (en) |
-
2020
- 2020-04-29 CN CN202020690755.XU patent/CN212177814U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A vent plug structure Effective date of registration: 20220713 Granted publication date: 20201218 Pledgee: Yibin Development Holding Group Co.,Ltd. Pledgor: YIBIN COWIN AUTO Co.,Ltd. Registration number: Y2022510000190 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230809 Granted publication date: 20201218 Pledgee: Yibin Development Holding Group Co.,Ltd. Pledgor: YIBIN COWIN AUTO Co.,Ltd. Registration number: Y2022510000190 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A ventilation plug structure Granted publication date: 20201218 Pledgee: Yibin Development Holding Group Co.,Ltd. Pledgor: YIBIN COWIN AUTO Co.,Ltd. Registration number: Y2024510000007 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |