CN209026164U - A kind of breather plug for speed changer - Google Patents
A kind of breather plug for speed changer Download PDFInfo
- Publication number
- CN209026164U CN209026164U CN201821367011.3U CN201821367011U CN209026164U CN 209026164 U CN209026164 U CN 209026164U CN 201821367011 U CN201821367011 U CN 201821367011U CN 209026164 U CN209026164 U CN 209026164U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- speed changer
- lid
- breather plug
- wall
- 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
Links
Abstract
The utility model provides a kind of breather plug for speed changer, is related to vehicle component technical field.The breather plug for being used for speed changer includes the top cap being sequentially connected from top to bottom, lid and pedestal.Top cap, lid are connected with the inner space of pedestal, and the lower end of pedestal is for connecting speed changer.The inside of pedestal is equipped with the interlayer in closed circular, opening up holding tank is defined between interlayer and the internal perisporium of pedestal, for storing the liquid flowed down from the internal perisporium of pedestal.In the present invention, due to being provided with interlayer at pedestal, the interlayer and base wall form holding tank, vapor in breather plug formed at inner wall after droplet with breather plug wall to it is dirty when can enter directly into holding tank, it may not flow into speed changer, it avoids avoiding the reduction of speed changer oil property so that the oil in speed changer is emulsified, and then avoids result in the failure of the components such as transmission bearing, gear.
Description
Technical field
The utility model relates to vehicle part technical fields, more particularly to a kind of breather plug for speed changer.
Background technique
To guarantee transmission for vehicles internal and external pressure balance, breather plug can be all installed on all speed changers.Existing breather plug
Essentially open in usual or check valve-type.Since speed changer is in operation work, internal temperature is higher, the plastics inside speed changer
Part etc. contains certain moisture, will be evaporated under high temperature action.But since speed changer external temperature is lower, this be will lead to
The generation of internal-external temperature difference, especially in breather plug position.Breather plug is generally all mounted on speed changer top to meet requirement of paddling
Portion, length is longer, and the temperature in breather plug pipe middle and upper part is significantly lower than inside speed changer in this way.Vapor inside speed changer
During outside release, since breather plug middle and upper part temperature reduces, globule condensation will be generated on breather plug wall, droplet exists
It will be back to inside speed changer under gravity.The water of liquid is assembled in breather plug root, will lead to speed changer oil emulsion,
As moisture is constantly assembled, oil property reduction will lead to, and then lead to transmission bearing, the failure of the components such as gear.
Utility model content
One purpose of the utility model is to provide for one kind and is able to solve water and is back to inside speed changer to lead to speed changer
The breather plug for speed changer of oil emulsion.
One purpose of the utility model be solve vehicle because it is outer collision etc. unexpected factors cause overturning when transmission oil it is big
The problem of amount leakage.
Particularly, the utility model provides a kind of breather plug for speed changer, including what is be sequentially connected from top to bottom
Top cap, lid and pedestal, the top cap, the lid are connected with the inner space of the pedestal, and the lower end of the pedestal is used
In the connection speed changer, wherein
The inside of the pedestal is equipped with the interlayer in closed circular, limits between the interlayer and the internal perisporium of the pedestal
There is opening up holding tank, for storing the liquid flowed down from the internal perisporium of the pedestal.
Optionally, the interlayer is in the inside of the pedestal from lower to upper gradually to the central axis side close to the pedestal
Extend to inclination.
Optionally, the inside of the pedestal is formed with stage portion, the section above the stage portion of the pedestal
Internal diameter be greater than the pedestal the section below the stage portion internal diameter；And
The interlayer is gradually inclined to the central axis direction close to the pedestal from lower to upper from the edge of the stage portion
Tiltedly extend, the stage portion forms the bottom wall of the holding tank.
Optionally, the top cap includes main body for being connected with the top opening of the lid and is set to the master
The shield of body outer circumferential；And
A cavity is defined between the shield and the periphery wall of the main body, the cavity has bottom opening, institute
The through-hole for offering on the periphery wall of main body and being connected to the body interior space and the cavity is stated, to allow in the speed changer
Gas successively through the pedestal, the lid, the main body, the through-hole and the cavity be discharged.
Optionally, the top cap further includes flexible sheet, the bottom phase of the upper end of the flexible sheet and the shield
Even, the lower end of the flexible sheet and the periphery wall of the main body fit closely, to close the bottom opening of the cavity；And
When the pressure that the flexible sheet is configured in the cavity the increases to predeterminable level and periphery of the main body
Wall separation, to allow the gap formed between periphery wall of the gas in the cavity through the flexible sheet and the main body to arrange
Out.
Optionally, the lid is inverted funnel shape, and including upward narrow opening and downward wide opening, the top cap is in institute
It states and is connect at narrow opening with the lid.
Optionally, it is provided with the first groove at the bottom interior wall of the main body, is arranged at the narrow opening outer wall of the lid
There is a circle fixing muscle, the fixing muscle is clamped with first groove the lid to be connect with the main body.
Optionally, external screw thread is provided at the external wall of upper portion of the pedestal, the wide opening inner wall of the lid is provided with
Internal screw thread, the external screw thread is with the screw-internal thread fit the lid to be connect with the pedestal.
Optionally, at least one the second groove of circle, each second groove are provided at the lower part outer wall of the pedestal
It is provided with a sealing ring.
Optionally, hangnail is provided at the base outer wall bottom.
In the present invention, due to being provided with interlayer at pedestal, the interlayer and base wall form holding tank, can accommodate
The liquid flowed down from base internal wall.Vapor in breather plug formed at inner wall after droplet with breather plug wall to it is dirty when meeting
It enters directly into holding tank, may not flow into speed changer, avoid avoiding transmission oil so that the oil in speed changer is emulsified
Product reduced performance, and then avoid result in the failure of the components such as transmission bearing, gear.
In the present invention, the area of strip through-hole is smaller, and the rubber film that uses of protective layer lower part and top cap
Outer wall fitting, oil when two layers of protection ensure that speed changer leads to overturning because of fortuitous events such as vehicle collisions, inside speed changer
Will not large area leakage, so as to avoid the risk of kindling.
According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more
Add the above-mentioned and other purposes, advantages and features of clear the utility model.
Detailed description of the invention
Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter
Apply example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that
The drawings are not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic perspective view according to the speed changer breather plug of the utility model one embodiment；
Fig. 2 is the schematic elevational view according to the speed changer breather plug of the utility model one embodiment；
Fig. 3 is along the sectional view after the cutting line A-A cutting in Fig. 2；
Fig. 4 is the schematic perspective view according to the top cap of the speed changer breather plug of the utility model one embodiment；
Fig. 5 is the schematic elevational view according to the top cap of the speed changer breather plug of the utility model one embodiment；
Fig. 6 is along the sectional view after the cutting line B-B cutting in Fig. 5；
Fig. 7 is the schematic perspective view according to the lid of the speed changer breather plug of the utility model one embodiment；
Fig. 8 is the schematic elevational view according to the lid of the speed changer breather plug of the utility model one embodiment；
Fig. 9 is along the sectional view after the cutting line C-C cutting in Fig. 8；
Figure 10 is the schematic perspective view according to the pedestal of the speed changer breather plug of the utility model one embodiment；
Figure 11 is the schematic elevational view according to the pedestal of the speed changer breather plug of the utility model one embodiment；
Figure 12 is along the sectional view after the cutting line D-D cutting in Figure 11.
Specific embodiment
Fig. 1 is the schematic perspective view according to the speed changer breather plug 100 of the utility model one embodiment；Fig. 2 is root
According to the schematic elevational view of the speed changer breather plug 100 of the utility model one embodiment；Fig. 3 is along the cutting line in Fig. 2
Sectional view after A-A cutting.As shown in Figure 1-3, the speed changer breather plug 100 in the present embodiment may include from top to bottom successively
Connected top cap 10, lid 20 and pedestal 30.
Wherein, lid 20 is inverted funnel shape, and including upward narrow opening 21 and downward wide opening 22, top cap 10 is opened narrow
It is connect at mouth 21 with lid 20.Pedestal 30 is located at 20 lower section of lid, and the upper end is connect with the wide opening 22 of lid 20, lower end connection
At speed changer.The interlayer 31 in closed circular is provided in pedestal 30, interlayer 31 and 30 wall of pedestal form an opening upwards
Holding tank 32, for accommodating the liquid flowed down from 30 wall of pedestal.
In the present embodiment, due to being provided with interlayer 31 at pedestal 30, the interlayer 31 and 30 wall of pedestal form holding tank 32,
The liquid flowed down from 30 inner wall of pedestal can be accommodated.That is, during actual use, vapor in breather plug with
Breather plug wall to it is dirty when can enter directly into holding tank 32, may not flow into speed changer, avoid so that in speed changer
Oil be emulsified, avoid speed changer oil property reduction, and then avoid result in the components such as transmission bearing, gear failure.
Fig. 4 is the schematic perspective view according to the top cap 10 of the speed changer breather plug 100 of the utility model one embodiment；
Fig. 5 is the schematic elevational view according to the top cap 10 of the speed changer breather plug 100 of the utility model one embodiment；Fig. 6 is edge
The sectional view after the cutting line B-B cutting in Fig. 5.As a specifically embodiment, as Figure 4-Figure 6, top cap 10 includes
Main body for being connected with the top opening of lid 20 i.e. narrow opening 21 and the shield for being set to main body outer circumferential
12。
Main body 11 is the hollow cylinder in the axial direction with an opening 17, and 21 position of narrow opening of lid 20 is extend into
It is open at 17 and is tightly connected with top cap 10,20 inner space of lid is connected to the hollow position of top cap 10.In the outer of top cap 10
One week shield 12, outer wall one cavity 13 of formation of shield 12 and top cap 10 are set at week.Cavity 13 has bottom opening
18, the through-hole 14 of connection 11 inner space of main body and cavity 13 is offered on the periphery wall of main body 11, to allow in speed changer
Gas is successively discharged through pedestal 30, lid 20, main body 11, through-hole 14 and cavity 13.The through-hole 14 be bar shaped through-hole 14 this
14 area of through-hole of shape is smaller, is the oil leakage in order to prevent in speed changer.Specifically, the gas in speed changer first passes through pedestal
30, it reaches at top cap 10 after lid 20, then is entered in cavity 13 by the strip through-hole 14, gas is discharged.
As one, specifically embodiment, top cap 10 further include flexible sheet 15, the upper end of flexible sheet 15 and shield
12 bottom is connected, and the lower end of flexible sheet 15 and the periphery wall of main body 11 fit closely, with the bottom opening of closed cavity 13
18.And flexible sheet 15 is configured to separate when the pressure in cavity 13 increases to predeterminable level with the periphery wall of main body 11, with
The gap for allowing to be formed between periphery wall of the gas through flexible sheet 15 and main body 11 in cavity 13 is discharged.Specifically, work as change
At work, the temperature inside speed changer is higher for fast device, and highest can achieve 120 °, and speed changer internal pressure is higher than speed change at this time
Outside device, pressure at this time is predeterminable level.In this temperature, the high pressure gas inside speed changer can open flexible sheet,
To which high pressure gas is discharged.Specifically, which is rubber film.More specifically, entire top cap 10 is integrated
Rubber structure.
In the present embodiment, the area of strip through-hole 14 is smaller, and the flexible sheet 15 that uses of 12 lower part of shield and top
The outer wall of cap 10 is bonded, when two layers of protection ensure that speed changer leads to overturning because of fortuitous events such as vehicle collisions, inside speed changer
Oil will not large area leakage, so as to avoid the risk of kindling.
Fig. 7 is the schematic perspective view according to the lid 20 of the speed changer breather plug 100 of the utility model one embodiment；
Fig. 8 is the schematic elevational view according to the lid 20 of the speed changer breather plug 100 of the utility model one embodiment；Fig. 9 is edge
The sectional view after the cutting line C-C cutting in Fig. 8.As Figure 7-9, as a specifically embodiment, in the present embodiment
In, lid 20 is the infundibulate fallen, and top is narrow opening 21, and lower part is wide opening 22.It is set at 21 outer wall of narrow opening of lid 20
It is equipped with fixing muscle 23, first groove of circle 16 is provided at the opening inner wall of top cap 10, fixing muscle 23 is connected in the first groove 16
Place.To be on the safe side, the narrow opening 21 and the first groove 16 are interference fit, guarantee that top cap 10 is in 20 junction of lid
Sealing state.Changeover portion between narrow opening 21 and wide opening 22 can be arc transition, and droplet is avoided directly to fall from top,
Convenient for droplet as side-walls slide downwards.
Figure 10 is the schematic isometric according to the pedestal 30 of the speed changer breather plug 100 of the utility model one embodiment
Figure；Figure 11 is the schematic elevational view according to the pedestal 30 of the speed changer breather plug 100 of the utility model one embodiment；Figure 12
It is along the sectional view after the cutting line D-D cutting in Figure 11.As a specifically embodiment, as shown in figs. 10-12.Pedestal
30 be stepped cylinder, internal to have the stepped hole 33 being adapted with stepped cylinder.The inside of pedestal 30 is formed with step
Portion 34, the internal diameter of the section in 34 top of stage portion of pedestal 30 are greater than the section in 34 lower section of stage portion of pedestal 30
Internal diameter.And interlayer 31 is gradually tilted from lower to upper to the central axis direction close to pedestal 30 from the edge of stage portion 34 and is extended,
The bottom wall of the formation holding tank 32 of stage portion 34.To guarantee to be connected between entire pedestal 30, lid 20 and top cap 10, the interlayer 31 is most
It cannot be closed at upper end, there is certain opening because being formed.
Specifically, external screw thread 35 is provided at the external wall of upper portion of pedestal 30, the inner wall setting at the wide opening 22 of lid 20
There is internal screw thread 24, external screw thread 35 cooperates with internal screw thread 24 lid 20 to be connect with pedestal 30.Certainly, internal and external threads can also be set
Change place, as long as lid 20 can be connect with pedestal 30.Certainly, preferably embodiment, can set in junction
Sealing device is set to leak from interconnecting piece to avoid internal gas.
In the present embodiment, since the size of the strip through-hole 14 at top cap 10 is smaller, gas enters logical from speed changer
After vent plug, when being discharged by the through-hole 14 of bar shaped, have little time for vapor to be discharged.And entire breather plug 100 is arranged on speed changer
When, the temperature at top cap 10 will be lower than the temperature at lid 20 and pedestal 30, and therefore, internal vapor holds at top cap 10
Easily condense into droplet, and droplet can flow to 30 side wall of pedestal and always to flowing down along 10 side wall of top cap, 20 side wall of lid,
And since 30 side wall of pedestal and partition form holding tank 32, it is directly stored in droplet in holding tank 32, change will not be flowed to
Fast device, avoids in conjunction with transmission oil, forms emulsification.As the transmission duty time increases, the water assembled at holding tank 32
The strip through-hole 14 for slow transitting through breather plug top cap 10 and caoutchouc elasticity diaphragm 15 are discharged.
As a specifically embodiment, as shown in figs. 10-12, at least one circle the is provided at the lower part outer wall of pedestal 30
Two grooves 36 are provided with a sealing ring 40 at every one second groove 36.Pedestal is provided with hangnail 37 at 30 outer wall bottom.The pedestal
30 lower part outer wall is primarily used to be installed with speed changer mounting hole.Two are preferably provided at outer wall at 30 lower part of pedestal
The second groove of item 36, and have two sealing rings 40.The sealing ring 40, which ensure that between pedestal 30 and speed changer, to be had preferably
Sealing performance prevents from leaking.
So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein
A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model
The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new
The range of type is understood that and regards as to cover all such other variations or modifications.
Claims (10)
1. a kind of breather plug for speed changer, which is characterized in that including top cap, lid and the base being sequentially connected from top to bottom
Seat, the top cap, the lid are connected with the inner space of the pedestal, and the lower end of the pedestal is for connecting the speed change
Device, wherein
The inside of the pedestal is equipped with the interlayer in closed circular, defines out between the interlayer and the internal perisporium of the pedestal
The holding tank of mouth upward, for storing the liquid flowed down from the internal perisporium of the pedestal.
2. the breather plug according to claim 1 for speed changer, which is characterized in that
The interlayer is gradually tilted to the central axis direction close to the pedestal from lower to upper in the inside of the pedestal to be extended.
3. the breather plug according to claim 2 for speed changer, which is characterized in that
The inside of the pedestal is formed with stage portion, and the internal diameter of the section above the stage portion of the pedestal is greater than institute
State the internal diameter of the section below the stage portion of pedestal；And
The interlayer is gradually prolonged to the central axis direction inclination close to the pedestal from lower to upper from the edge of the stage portion
It stretches, the stage portion forms the bottom wall of the holding tank.
4. the breather plug according to claim 1 for speed changer, which is characterized in that
The top cap includes main body for being connected with the top opening of the lid and is set to the main body outer circumferential
Shield；And
A cavity is defined between the shield and the periphery wall of the main body, the cavity has bottom opening, the master
The through-hole for being connected to the body interior space and the cavity is offered on the periphery wall of body, to allow the gas in the speed changer
Body is successively discharged through the pedestal, the lid, the main body, the through-hole and the cavity.
5. the breather plug according to claim 4 for speed changer, which is characterized in that
The top cap further includes flexible sheet, and the upper end of the flexible sheet is connected with the bottom of the shield, the elasticity
The lower end of diaphragm and the periphery wall of the main body fit closely, to close the bottom opening of the cavity；And
Divide when the pressure that the flexible sheet is configured in the cavity increases to predeterminable level with the periphery wall of the main body
From to allow the gap formed between periphery wall of the gas in the cavity through the flexible sheet and the main body to be discharged.
6. the breather plug according to claim 5 for speed changer, which is characterized in that
The lid is inverted funnel shape, and including upward narrow opening and downward wide opening, the top cap is at the narrow opening
It is connect with the lid.
7. being used for the breather plug of speed changer according to any one of claim 4-6, which is characterized in that
It is provided with the first groove at the bottom interior wall of the main body, is provided with a circle at the narrow opening outer wall of the lid and fixes
Muscle, the fixing muscle are clamped with first groove the lid to be connect with the main body.
8. the breather plug according to claim 7 for speed changer, which is characterized in that
External screw thread is provided at the external wall of upper portion of the pedestal, the wide opening inner wall of the lid is provided with internal screw thread, described
External screw thread is with the screw-internal thread fit the lid to be connect with the pedestal.
9. the breather plug of speed changer is used for described in any one of -6 or 8 according to claim 1, which is characterized in that
At least one the second groove of circle is provided at the lower part outer wall of the pedestal, each second groove is provided with a sealing
Circle.
10. the breather plug of speed changer is used for described in any one of -6 or 8 according to claim 1, which is characterized in that
Hangnail is provided at the base outer wall bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367011.3U CN209026164U (en) | 2018-08-23 | 2018-08-23 | A kind of breather plug for speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367011.3U CN209026164U (en) | 2018-08-23 | 2018-08-23 | A kind of breather plug for speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026164U true CN209026164U (en) | 2019-06-25 |
Family
ID=66876710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821367011.3U Expired - Fee Related CN209026164U (en) | 2018-08-23 | 2018-08-23 | A kind of breather plug for speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026164U (en) |
Cited By (1)
| 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 |
-
2018
- 2018-08-23 CN CN201821367011.3U patent/CN209026164U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |