CN203146775U - Breather plug for gearbox - Google Patents
Breather plug for gearbox Download PDFInfo
- Publication number
- CN203146775U CN203146775U CN 201320053213 CN201320053213U CN203146775U CN 203146775 U CN203146775 U CN 203146775U CN 201320053213 CN201320053213 CN 201320053213 CN 201320053213 U CN201320053213 U CN 201320053213U CN 203146775 U CN203146775 U CN 203146775U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- gearbox
- vulcanite
- plug
- cock body
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a breather plug for a gearbox and belongs to the technical field of automobiles. According to the technical scheme of the breather plug for the gearbox, the breather plug for the gearbox comprises a tubular hard rubber plug body and a plug cap, the lower end of the tubular hard rubber plug body is inserted into a breather hole of a housing of the gearbox, the upper end of the tubular hard rubber plug body is provided with a flange plate on which a sleeve pipe coaxial with the flange plate is fixed, and one side of an upper end of the sleeve pipe is provided with a breather gap; and the plug cap covers the hard rubber plug body, the top wall of the plug cap presses the sleeve pipe, the periphery of the plug cap extends under the flange plate and is provided with an inward anti-release flanging, the inside of the plug cap is provided with an inner pipe which is coaxial with the sleeve pipe and separated from the sleeve pipe, the inner pipe is arranged inside the sleeve pipe, the upper end of the inner pipe is fixedly connected with the top wall of the plug cap, the lower end of the inner pipe is in an abut-joint relationship with an air hole of the hard rubber plug body, and one side of the lower end of the inner pipe is provided with a breather oil return gap. According to the breather plug for the gearbox, the hard rubber plug body and the plug cap form a long and zigzag air channel, so that not only dust is prevented from entering into the breather plug effectively, but also oil-gas separation and oil backflow are facilitated, and oil leakage is avoided.
Description
Technical field
The utility model relates to a kind of breather plug that is installed on the automobile gearbox shell, belongs to automobile technical field.
Background technique
Breather plug all is housed on the housing of automobile gearbox, and its effect is when the gearbox internal air pressure raises in car running process gas to be discharged to outside the case, replenishes air when the gearbox cooling reduces air pressure inside in case.Existing metallic type breather plug is generally emitted by cock body, plug and spring between the two constitutes, and plug emits under the elastic force effect of spring the port sealing with cock body.Cock cap just can be realized ventilatory function by jack-up when loading pressure reaches certain value.The shortcoming that this breather plug exists oil leakage phenomenon occurs when being high temperature easily, and dustproof effect is bad, enters dust easily, has had a strong impact on the overall performance of gearbox.
The model utility content
The purpose of this utility model is the drawback at prior art, and the gearbox breather plug of a kind of not easy oil leakage and good dustproof effect is provided.
Problem described in the utility model realizes with following technical proposals:
A kind of gearbox breather plug, it comprises vulcanite cock body and cock cap, described vulcanite cock body is in a tubular form, insert in the vent of gear-box case its lower end, the upper end is provided with flange plate, and coaxial with it sleeve pipe is also fixedly arranged on flange plate, and sleeve pipe upper end one side is provided with the ventilation gap; Described cock cap is buckled on the vulcanite cock body, its roof is pressed on the sleeve pipe, periphery extends to the below of flange plate and is provided with inside anticreep flanging, be provided with in cock cap inside with sleeve pipe coaxial and from interior pipe, pipe is positioned at sleeve pipe in described, fixedly connected with the roof of cock cap in its upper end, dock with the pore of vulcanite cock body the lower end, is provided with ventilation oil return gap in interior pipe lower end one side.
Above-mentioned gearbox breather plug also comprises oil baffle in the formation, described oil baffle is positioned at gearbox, fixedlys connected with gear box casing in its upper end, lower end bending or tilt to the below of vulcanite cock body.
Above-mentioned gearbox breather plug, the outer wall at described tubulose vulcanite cock body middle part is provided with coaxial with it spacing platen.
Above-mentioned gearbox breather plug, the outer wall of described tubulose vulcanite cock body is provided with annular protrusion, and described annular protrusion is positioned at the below of spacing platen.
Above-mentioned gearbox breather plug, the ventilation oil return gap of described interior pipe lower end and the ventilation gap of sleeve pipe upper end lay respectively at the both sides of casing axis.
Above-mentioned gearbox breather plug, described oil baffle arrange two, and they lay respectively at the both sides of vulcanite cock body.
Above-mentioned gearbox breather plug, the lower end surface of described tubulose vulcanite cock body is the inclined-plane.
The utility model is the normal opened type breather plug, has air permeability and good, constituted long and tortuous gas channel owing to have the tubulose vulcanite cock body of sleeve pipe with the cock cap that has interior pipe, not only can imitate and prevent that dust from entering, and be convenient to Oil-gas Separation and fluid backflow, avoided the generation of oil leakage phenomenon.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is sectional drawing of the present utility model;
Fig. 2 is the sectional drawing of cock cap;
Fig. 3 is the A-A sectional view;
Fig. 4 is the sectional drawing of vulcanite cock body;
Fig. 5 is the B-B sectional view.
Each list of reference numerals is among the figure: 1, cock cap, 2, the vulcanite cock body, 3, oil baffle, 4, the anticreep flanging, 5, interior pipe, 6, sleeve pipe, 7, flange plate, 8, spacing platen, 9, annular protrusion, 10, gear box casing, 11, ventilation oil return gap, 12, the ventilation gap.
Embodiment
The utility model adopts vulcanite or plastics manufacturing, and is easy to process, once-through easily, and fabricating cost is low.
Referring to Fig. 1～Fig. 5, the utility model is a kind of normal opened type breather plug, mainly comprise cock cap 1, vulcanite cock body 2 and oil baffle 3, vulcanite cock body 2 is made by hard rubber material, directly be inserted in the vent of gear box casing 10, the interior pipe 5 of cock cap 1 inside inserts in the sleeve pipe 6 on vulcanite cock body 2 tops, interior pipe 5 lower ends and vulcanite cock body 2 closely cooperate, interior pipe 5 lower ends and vulcanite cock body 2 cooperation places are provided with ventilation oil return gap 11, sleeve pipe 6 upper ends and cock cap 1 also closely cooperate, sleeve pipe 6 upper ends and cock cap 1 cooperation place are provided with ventilation gap 12, the anticreep flanging 4 at cock cap 1 edge is stuck in flange plate 7 edges of vulcanite cock body 2, prevents that cock cap 1 from coming off.
Down, the gas in the gear box casing 10 can be in communication with the outside by passage shown in dotted lines in Figure 1 in working order, keeps the body inside and outside air pressure unanimity.Oil baffle 3 retainings can make to a certain degree stoping fluid to enter breather plug in the lower end of vulcanite cock body 2.Under the stirring of gear box casing 10 middle gears, fluid is splashed on the roof of gear box casing 10, have only part fluid to enter breather plug by the gap of two oil baffles 3, the fluid that enters breather plug is separated from the gas in again can the cavity between interior pipe 5 and sleeve pipe 6, ventilation oil return gap 11 by interior pipe 5 lower ends and vulcanite cock body 2 cooperation places is back in the gearbox then, thereby has prevented that effectively fluid from leaking.
Claims (7)
1. gearbox breather plug, it is characterized in that, it comprises vulcanite cock body (2) and cock cap (1), described vulcanite cock body (2) in a tubular form, insert in the vent of gear-box case (10) its lower end, the upper end is provided with flange plate (7), and coaxial with it sleeve pipe (6) is also fixedly arranged on flange plate (7), and sleeve pipe (6) upper end one side is provided with ventilation gap (12); Described cock cap (1) is buckled on the vulcanite cock body (2), its roof is pressed on the sleeve pipe (6), periphery extends to the below of flange plate (7) and is provided with inside anticreep flanging (4), be provided with in cock cap (1) inside with sleeve pipe (6) coaxial and from interior pipe (5), pipe (5) is positioned at sleeve pipe (6) in described, fixedly connected with the roof of cock cap (1) in its upper end, dock with the pore of vulcanite cock body (2) lower end, is provided with ventilation oil return gap (11) in interior pipe (5) lower end one side.
2. a kind of gearbox breather plug according to claim 1, it is characterized in that also comprise oil baffle (3) in the formation, described oil baffle (3) is positioned at gearbox, fixedly connected with gear box casing (10) in its upper end, lower end bending or tilt to the below of vulcanite cock body (2).
3. a kind of gearbox breather plug according to claim 1 and 2 is characterized in that, the outer wall at described tubulose vulcanite cock body (2) middle part is provided with it coaxial spacing platen (8).
4. a kind of gearbox breather plug according to claim 3 is characterized in that, the outer wall of described tubulose vulcanite cock body (2) is provided with annular protrusion (9), and described annular protrusion (9) is positioned at the below of spacing platen (8).
5. a kind of gearbox breather plug according to claim 4 is characterized in that, the ventilation oil return gap (11) of described interior pipe (5) lower end and the ventilation gap (12) of sleeve pipe (6) upper end lay respectively at the both sides of sleeve pipe (6) axis.
6. a kind of gearbox breather plug according to claim 5 is characterized in that, described oil baffle (3) arranges two, and they lay respectively at the both sides of vulcanite cock body (2).
7. a kind of gearbox breather plug according to claim 6 is characterized in that, the lower end surface of described tubulose vulcanite cock body (2) is the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053213 CN203146775U (en) | 2013-01-31 | 2013-01-31 | Breather plug for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053213 CN203146775U (en) | 2013-01-31 | 2013-01-31 | Breather plug for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146775U true CN203146775U (en) | 2013-08-21 |
Family
ID=48974300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053213 Expired - Fee Related CN203146775U (en) | 2013-01-31 | 2013-01-31 | Breather plug for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224518A (en) * | 2016-07-22 | 2016-12-14 | 重庆高金实业有限公司 | CVT shield structure, CVT guard shield drainage stopper structure and this CVT guard shield drainage stopper |
| CN108713224A (en) * | 2016-03-09 | 2018-10-26 | 奥特司科技株式会社 | Display device |
-
2013
- 2013-01-31 CN CN 201320053213 patent/CN203146775U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713224A (en) * | 2016-03-09 | 2018-10-26 | 奥特司科技株式会社 | Display device |
| CN106224518A (en) * | 2016-07-22 | 2016-12-14 | 重庆高金实业有限公司 | CVT shield structure, CVT guard shield drainage stopper structure and this CVT guard shield drainage stopper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |