CN207005254U - A kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug - Google Patents
A kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug Download PDFInfo
- Publication number
- CN207005254U CN207005254U CN201720690235.7U CN201720690235U CN207005254U CN 207005254 U CN207005254 U CN 207005254U CN 201720690235 U CN201720690235 U CN 201720690235U CN 207005254 U CN207005254 U CN 207005254U
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- valve body
- breather plug
- speed changer
- oil return
- airway
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug, including valve body, bonnet is provided with valve body, downward skirt mouth is provided with bonnet, the junction of valve body and bonnet is provided with airway, airway connects with the inside of valve body, and space of the airway also between valve body and skirt mouth connects；Valve inner is provided with filter, and filter is located at the lower section of airway.The problem of breather plug can ensure ventilate inside and outside speed changer, while it is excessive to solve transmission internal lubricating oil, and gearbox is intake.
Description
Technical field
The utility model belongs to transmission design field, is related to a kind of speed changer waterproof oil return breather plug；Further relate to have
There is the speed changer of the breather plug；Further relate to a kind of motor vehicle with above-mentioned speed changer.
Background technology
During speed changer use, higher temperature and pressure, and mixed oil and gas in the present context can be produced in case,
Oil temperature is normal in guard box, it is necessary to so that air pressure is consistent with the outer atmospheric pressure of case in case, it is therefore necessary to using breather plug, to protect
Hold inside and outside ventilation.Therefore, problems with is generated：1st, air is often mixed with the lubricating oil of gasification in case, outside in speed changer
During exhaust, this part gaseous state lubricating oil sprays with breather plug, and outside the enclosure portion forms oil stain, and serious even turns into one
Locate leakage point；2nd, strong rainy day gas, during outside rainwater splashes on speed changer surface, it is possible to entered by breather plug in cartonning
So as to cause deterioration of lubricant.
Commonly use breather plug on the market at present, because its structural design problem can only often ensure that ventilation acts on, and can not
Oozing out for oil gas in case is effectively prevented, or prevents the outer ponding of case from penetrating into case.
Utility model content
The purpose of this utility model is to provide a kind of waterproof oil return breather plug, and the breather plug can ensure in speed changer
Outer ventilation, while it is excessive to solve transmission internal lubricating oil, and the problem of gearbox is intake.
The purpose of this utility model, which also resides in, provides a kind of speed changer, and the speed changer has above-mentioned waterproof oil return breather plug；
The utility model additionally provides a kind of motor vehicle, and the motor vehicle has above-mentioned speed changer.
The purpose of this utility model solves by the following technical programs：
This waterproof oil return breather plug, including valve body, bonnet is provided with valve body, downward skirt mouth is provided with bonnet,
The junction of valve body and bonnet is provided with airway, and airway connects with the inside of valve body, airway also with valve body and skirt mouth it
Between space connection；Valve inner is provided with filter, and filter is located at the lower section of airway.
Further, also resided in the characteristics of the utility model
Wherein valve body with bonnet junction is arranged to up big and down small upper interface.
It is intraoral that wherein upper interface is arranged on skirt.
Wherein valve inner is provided with filter, and filter is located at the lower section of airway.
Up-small and down-big space is wherein formed between skirt mouth and valve body.
The bottom of wherein skirt mouth is arranged to Eversible structure.
Another technical scheme of the present utility model is a kind of speed changer, and the speed changer has above-mentioned waterproof oil return breather plug.
Another technical scheme of the present utility model is that a kind of motor vehicle, the motor vehicle has above-mentioned speed changer.
The beneficial effects of the utility model are：The inside of valve body is up big and down small hollow structure, passes through change using air-flow
During cross-sectional passage, sectional area increases suddenly, causes pressure drop so as to reach cooling-down effect, condenses the mixed oil and gas of valve inner, prevents
The generation of the excessive problem of lubricating oil is stopped；And valve inner is connected by airway, formed between skirt mouth and valve body between air-flow
Gap, and the gap connects with airway, so that transformer inner and outer air pressure is consistent；Skirt mouth can protect whole gas to circulate simultaneously
Passage, prevent outside water inside transformer is entered by passage, solve the problems, such as transformer because breather plug water inlet.
Further, valve body is arranged to up big and down small structure in the intraoral part of skirt, is advantageous to the cold of lubricating oil
Coagulate in the intraoral progress of skirt, while use filter, further condense lubrication oil gas and collect the lubricating oil for condensing into liquid.
Further, the up-small and down-big space between skirt mouth and valve body, can form Minitype negative pressure region, effectively prevent
External water is penetrated into speed changer along inwall.
Further, the curved design of turning up of Eversible structure, be advantageous to outside rainwater and scatter in time, prevent rainwater logical
Accumulate vent plug bottom.
Speed changer provided by the utility model, the waterproof oil return breather plug of use, can prevent lubricating oil from leaking, and improve and become
The shelf life of fast device and work quality；Prevent external water to enter inside speed changer simultaneously, solve lubricating oil because of aqueous metamorphism
Problem, improve the usage time of lubricating oil.
Motor vehicle provided by the utility model, it uses above-mentioned speed changer, and maneuverability is good, and speed changer is short maintenance period.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1 is valve body；2 be bonnet；3 be skirt mouth；4 be Eversible structure；5 be upper interface；6 be filter；7 be logical
Air flue.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
The utility model provides a kind of waterproof oil return breather plug, as shown in figure 1, including valve body 1, is provided with valve body 1
The junction of bonnet 2, valve body 1 and bonnet 2 is provided with airway 7, is provided with the skirt mouth 3 extended downwardly on bonnet 2, skirt mouth 3 with
It is air flow clearance between valve body 1, wherein air flow clearance connects with airway 7, and airway 7 connects with the inside of valve body 1.Valve body 1 is
Internal up big and down small hollow structure, filter 6 is additionally provided with inside valve body 1, filter is located at the lower section of airway 7,
The part that valve body 1 is located in skirt mouth 3 is upper interface 5, and the inside of upper interface 5 is up big and down small structure, and the inwall of upper interface 5 to
It is tilted.Air flow clearance is up-small and down-big structure, and the bottom of skirt mouth 3 is the Eversible structure of outside turnup, is further increased
The section of air flow clearance bottom.
As shown in figure 1, the direction of arrow is the airflow direction outwards ventilated inside speed changer, air-fuel mixture gas in speed changer
Along the circulation upwards of the inside of valve body 1, enter in interface 5, and in upper interface 5 gaseous lubricating oil filter 6 with
Under position condensed, and be back to along the tilt internal wall of upper interface 5 in transformer downwards, while gas is through filtering
Device 6 passes through airway 7 and air flow clearance, makes inside transformer and ft connection, it is consistent to realize transformer inner and outer air pressure；When
When having water outside transformer, outside water flows down along bonnet 2, and by skirt mouth 3, because the bottom of skirt mouth 3 is arranged to outer
Structure 4 is turned over, Eversible structure 4 prevents water from being accumulated in breather plug bottom, and because the airflow clearance between skirt mouth 3 and valve body 1 is
It is up-small and down-big, therefore it is internally formed Minitype negative pressure region, effectively prevent external water and is penetrated into breather plug inside.
Claims (8)
1. a kind of waterproof oil return breather plug, it is characterised in that including inner hollow and up big and down small valve body (1), on valve body (1)
Bonnet (2) is provided with, is provided with downward skirt mouth (3) on bonnet (2), the junction of valve body (1) and bonnet (2) is provided with ventilation
Road (7), airway (7) connect with the inside of valve body (1), and space of the airway (7) also between valve body (1) and skirt mouth (3) connects
It is logical.
2. waterproof oil return breather plug according to claim 1, it is characterised in that the valve body (1) is connected with bonnet (2)
Place is arranged to up big and down small upper interface (5).
3. waterproof oil return breather plug according to claim 2, it is characterised in that the upper interface (5) is arranged on skirt mouth (3)
It is interior.
4. waterproof oil return breather plug according to claim 1, it is characterised in that the valve body (1) is internally provided with filtering
Device (6), filter (6) are located at the lower section of airway (7).
5. waterproof oil return breather plug according to claim 1, it is characterised in that shape between the skirt mouth (3) and valve body (1)
Into up-small and down-big space.
6. waterproof oil return breather plug according to claim 5, it is characterised in that the bottom of the skirt mouth (3) is arranged to outer
Turn over structure (4).
7. a kind of speed changer, it is characterised in that the speed changer has waterproof oil return breather plug as claimed in claim 1.
8. a kind of motor vehicle, it is characterised in that the motor vehicle has speed changer as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690235.7U CN207005254U (en) | 2017-06-14 | 2017-06-14 | A kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720690235.7U CN207005254U (en) | 2017-06-14 | 2017-06-14 | A kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005254U true CN207005254U (en) | 2018-02-13 |
Family
ID=61446644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720690235.7U Active CN207005254U (en) | 2017-06-14 | 2017-06-14 | A kind of waterproof oil return breather plug and speed changer and motor vehicle based on the breather plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853211A (en) * | 2020-06-23 | 2020-10-30 | 义乌吉利自动变速器有限公司 | Breathing device of transmission, assembling method and vehicle |
| WO2024046231A1 (en) * | 2022-08-29 | 2024-03-07 | 蔚来动力科技(合肥)有限公司 | Oil leakage- and water inflow-preventing transmission device |
-
2017
- 2017-06-14 CN CN201720690235.7U patent/CN207005254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853211A (en) * | 2020-06-23 | 2020-10-30 | 义乌吉利自动变速器有限公司 | Breathing device of transmission, assembling method and vehicle |
| WO2024046231A1 (en) * | 2022-08-29 | 2024-03-07 | 蔚来动力科技(合肥)有限公司 | Oil leakage- and water inflow-preventing transmission device |
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