CN206694533U - The dust plug of low noise - Google Patents
The dust plug of low noise Download PDFInfo
- Publication number
- CN206694533U CN206694533U CN201720426614.5U CN201720426614U CN206694533U CN 206694533 U CN206694533 U CN 206694533U CN 201720426614 U CN201720426614 U CN 201720426614U CN 206694533 U CN206694533 U CN 206694533U
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- China
- Prior art keywords
- dust
- connector
- sealing gasket
- dust cap
- reflection seat
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Abstract
A kind of dust plug of low noise is the utility model is related to, including dust cap, sealing gasket, connector and fittings body, dust cap, sealing gasket, connector and fittings body sequentially connect, in addition to：Reflection seat and distributary base, wherein, reflection seat is a circular hollow cylinder, and the outer rim of reflection seat connects with the inner edge of connector, and the inner edge of reflection seat is taper, reflection seat towards dust cap side inner edge diameter, less than the inner edge diameter of other side；Distributary base includes a plane tapering and at least two connecting portions, one end peace face cone portion connection of connecting portion, and the other end of connecting portion connects with reflection seat and fittings body；Gap is formed between plane tapering and fittings body.The utility model has more preferable dustproof and waterproof effect, and capacity is big, and noise is low, and properties of product are more reliable, and the life-span is longer.
Description
Technical field
It the utility model is related to a kind of automobile mechanical exhaust dust plug field, more particularly to the capacity that a kind of vehicle uses
Greatly, the low dust plug of noise.
Background technology
As highway in China carrier manages constantly standardization, it is efficient, the epoch of lean running have arrived, this
It is required that industry will be conducted oneself with dignity by Lifting Convey efficiency, reduction vehicle body, and reduce fuel consumption level of the unit volume of goods transported etc. and arrange
Apply to realize the higher level of profitability.And highway freight user requires that heavy truck possesses high-speed overload, lightweight, fuel economy
The attributes such as good, rate of attendance height, product demand gradually shift to high-endization., it is expected that carry high-power, the weight of more gear gearboxes
Card product will increasingly become main flow, such as 16 gears, 20 gears, 24 shift transmissions.
Air pressure in manual transmission constantly changes with the situation of work, when internal temperature increase, its pressure
It can increase, to enable speed changer to keep normal work, just have to the air pressure in speed changer being adjusted.Become manually at present
Fast device is all to carry out air pressure adjustment using dust plug is ventilated, and the existing dust-proof plug structure of ventilation is bonded by one piece of sheet rubber
On fittings body, pushed down with dust cap.The function of ventilation dust plug is that sheet rubber is open rapidly, waits gas when having gas discharge
After body row's light, under the restoring force of rubber, sheet rubber return, sealing and dustproof effect is again served to.
Such as patent No. 201620326731.X discloses a kind of huge discharge breather plug, when the air pressure rise in speed changer
When, the gas in speed changer can oppress sheet rubber, the gas in speed changer is discharged by the steam vent of breather plug, ensure speed change
Air pressure in device is consistent with atmospheric pressure.In actual use, capacity increase brings noise to become the problem of big.
So existing ventilation dust plug also has the place lifted.
Utility model content
For drawbacks described above, the purpose of this utility model is to provide a kind of simple in construction, has both realized big degassing function, and real
Dust-proof, waterproof, the dust plug of low noise are showed, to solve the technical problem of prior art.
To reach above-mentioned purpose, the utility model provides a kind of dust plug of low noise, the dust plug include dust cap,
Sealing gasket, connector and fittings body, the dust cap, sealing gasket, connector and fittings body sequentially connect, in addition to：One reflection
Seat and a distributary base, wherein, the reflection seat is a circular hollow cylinder, the outer rim of the reflection seat and the connector it is interior
Edge connects, and the inner edge of the reflection seat is taper, the reflection seat towards the dust cap side inner edge diameter, less than in addition
The inner edge diameter of side；The distributary base includes a plane tapering and at least two connecting portions, one end of the connecting portion and institute
The connection of plane tapering is stated, the other end of the connecting portion connects with the reflection seat and the fittings body；The plane tapering
Gap is formed between the fittings body.
According to the dust plug of the low noise described in the utility model preferred embodiment, the sealing gasket is to have through hole among one
Rubber lamellar body, the sealing gasket connects with the connector, and the sealing gasket covers the gas outlet of the connector；It is described anti-
Dirt cap limits the degree of crook of the sealing gasket towards the side of the sealing gasket.
According to the dust plug of the low noise described in the utility model preferred embodiment, the connector is a hollow cylinder,
Wherein, one end that the connector connects with the dust cap sets a shim, and the shim goes out the connector
Gas port is divided into two parts；For the shim towards the sealing gasket side, the position of the corresponding through hole sets a boss, described
Boss insertion connects the through hole；, there is radially projecting dust-proof Access Division the shim and the connector junction.
According to the dust plug of the low noise described in the utility model preferred embodiment, the dust cap is a cup, wherein,
The cup anchor ring of the dust cap corresponds to the dust-proof Access Division of the connector, sets connecting hole, the dust-proof Access Division and institute
State connecting hole clamping；The bottom of a cup of the dust cap is inwardly recessed, and the bottom of a cup of the dust cap corresponds to the described convex of the shim
At platform, a limited impression is opened up, the boss inserts the limited impression, and the bottom of a cup face of the dust cap limits the sealing gasket
Degree of crook.
The design concept of the application is that exploitation is a is better than traditional dust plug from structure and principle.This structure it is dust-proof
Plug can either ensure that the institute of conventional exhaust plug is functional, and capacity is big, there is more preferable dustproof and waterproof effect again, and noise is low,
Properties of product are more reliable, and the life-span is longer.
Compared with prior art, the application has advantages below to the application：
Firstth, the simple, compact structure of the application, had both realized big degassing function, and had realized dust-proof, waterproof, low noise again
The function of sound；
Secondth, the application makes full use of the excellent specific property of rubber, improves product reliability and service life.
Certainly, implement any one specific embodiment of the utility model content, all of the above might not be reached simultaneously
Technique effect.
Brief description of the drawings
Fig. 1 is the application schematic perspective view；
Fig. 2 is the application gas circulation schematic diagram；
Fig. 3 is the application cut-away diagram；
Fig. 4 is another angle cut-away diagram of the application；
Fig. 5 is the application sealing gasket schematic perspective view；
Fig. 6 is the application connector cut-away diagram；
Fig. 7 is the application dust cap cut-away diagram；
Fig. 8 is the application distributary base schematic cross-section；
Fig. 9 is the application distributary base schematic perspective view；
Figure 10 is the application reflection seat schematic perspective view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is illustrated.
Fig. 1, Fig. 2, Fig. 5 and Fig. 8, a kind of dust plug of low noise are referred to, the dust plug includes dust cap 10, sealing
Pad 30, connector 20 and fittings body 40, the dust cap 10, sealing gasket 30, connector 20 and fittings body 40 are sequentially connected, also wrapped
Include：One reflection seat 50 and a distributary base 60, wherein, the reflection seat 50 is a circular hollow cylinder, the reflection seat 50 it is outer
Edge connects with the inner edge of the connector 20, and as shown in figs. 2 and 10, reflection seat 50 is outer towards the side of dust cap 10
Edge, there is a hypotenuse unfilled corner, the inner edge hypotenuse of this hypotenuse mating connection body 20 is spacing by reflection seat 50；The reflection seat 50
Inner edge be taper, the reflection seat 50 towards the side of dust cap 10 inner edge diameter, it is straight less than the inner edge of other side
Footpath；That is, as shown in figs. 2 and 10, the inwall of reflection seat 50 is an oblique line, and air-flow hits inwall after entering, by interior
The reflection of wall just continues to flow.
In addition, referring to Fig. 3, Fig. 4, Fig. 8 and Fig. 9, the distributary base 60 includes a plane tapering 61 and at least two companies
Socket part 62, one end of the connecting portion 62 and the plane tapering 61 connect, the other end of the connecting portion 62 and described anti-
Penetrate seat 50 and the fittings body 40 connects, as shown in figure 3, one end of connecting portion 62 is located at the step of fittings body 40, and reflect
The top that seat 50 is then pressed in connecting portion 62, tightly spacing in the centre of reflection seat 50 and fittings body 40 of connecting portion 62 is played
Fixed effect；After assembling, gap is formed between the plane tapering 61 and the inwall of the fittings body 40.This gap is also
It is gas channel, air-flow subsequently enters gas channel after the entrance of fittings body 40, then anti-from the breach flow direction between connecting portion 62
Penetrate seat 50.The function of low noise is realized by reflection seat 50 and distributary base 60；When gas flows through distributary base, distributary base guiding gas
If body is divided into stem portion, in the present embodiment, the quantity of connecting portion 62 is 12, but can not be used for limiting the application, more
As long as or it is a little less can shunt, air-flow again by reflection seat to intermediate flow, mutual collision rift, kinetic energy are big after meeting
It is big to reduce, so that noise when spilling out reduces.
Referring to Fig. 5, the sealing gasket 30 is the rubber lamellar body for having among one through hole 31, the shape of through hole 31 can be round
Shape, square or other shapes, in the present embodiment, the shape of through hole 31 is circular, but can not be used for limiting the application, every side
Just processing, beneficial to combination shape be all the application protection domain.The sealing gasket 30 and the connector 20 connect, described
Sealing gasket 30 covers the gas outlet of the connector 20；The dust cap 10 is towards the side of the sealing gasket 30, and sealing gasket
30 connections, limit movement and the degree of crook of the sealing gasket 30.Preferably, in order to ensure that sealing gasket 30 has the more long longevity
Life, there is corresponding requirement to the material of sealing gasket 30, and rubber uses hydrogenated nitrile-butadiene rubber, resistance to -40~120 DEG C of temperature range,
It is required that hardness is 75~85Shore A, tensile strength is more than 20MPa, and after 200% elongation 24 hours, permanent deformation is less than 6%,
To guarantee to be adapted to vehicle to meet client's requirement under any temperature environment.
In addition, referring to Fig. 3, Fig. 4 and Fig. 6, the connector 20 is a hollow cylinder, wherein, the He of connector 20
One end that the dust cap 10 connects sets a shim 21, and the gas outlet of the connector 20 is divided into two by the shim 21
Partly；The shim 21 is convex towards the side of sealing gasket 30, the position setting one of the through hole 31 of the corresponding sealing gasket 30
Platform 22, the insertion of boss 22 connect the through hole 31 of the sealing gasket 30；In addition, the shim 21 and the connector 20 connect
Place is met, there is radially projecting dust-proof Access Division 23.The shim 21, boss 22 and dust-proof Access Division 23 are integrally formed and are made.
Preferably, the shim 21, boss 22 and dust-proof Access Division 23 are adopted made of plastic.
Further, Fig. 3, Fig. 4 and Fig. 7 are referred to, the dust cap 10 is a cup, wherein, the cup of the dust cap 10
Anchor ring corresponds to the dust-proof Access Division 23 of the connector 20, sets connecting hole 11, the dust-proof Access Division 23 and the connecting hole
11 clampings, in design, dust-proof Access Division 23 protrude from the surface of connector 20, and connecting hole 11 can be with docile in the table of connector 20
Face, can be by dust cap 10 and the firm connection of connector 20 after clamping；The fast and effective rate of method of this clamping, suitable for plastics
Or the dust cap 10 of metal material, still, in the dust cap 10 of metal material, it can also directly flatten opening for dust cap 10
Mouthful, to be connected with connector 20, therefore, the connected mode of dust-proof Access Division 23 and the clamping of connecting hole 11, it is impossible to for limiting this
Application, the method for above-mentioned flattening connection, should also be the protection domain of the application.Preferably, the dust cap 10 uses plastics
It is made.
In addition, as shown in fig. 7, the bottom of a cup of the dust cap 10 is inwardly recessed, described in the bottom of a cup correspondence of the dust cap 10
At the boss 22 of shim 21, a limited impression 12 is opened up, the boss 22 inserts the limited impression 12, described dust-proof
The bottom of a cup face of cap 10 limits movement and the degree of crook of the sealing gasket 30.Dust cap 10 limits the movement and bending of sealing gasket 30
The mode of degree is, as shown in Fig. 2 gases circulation schematic diagram, after boss 22 inserts limited impression 12, and the outer rim of limited impression 12
It is pressed on sealing gasket 30, for location sealing pad 30 and prevents sealing gasket 30 from being blown away by air-flow；In addition, when discharging gas,
The angle of the bottom of a cup of dust cap 10 downwards, it is exactly the maximum angle that sealing gasket 30 can be bent, the limitation of this angle can be to prevent
Only sealing gasket 30 is bent excessive, and protection sealing gasket 30 is unlikely to lose, and can reach most suitable capacity again.Preferably, in order to protect
Sealing gasket 30 is demonstrate,proved in long-term work, will not be because deforming the excessive influence life-span, while the performance of big flow is disclosure satisfy that, it is dust-proof
Cap 10 has made necessary spacing angle to sealing gasket 30, it is desirable to 40~50 degree of angle.That is, the bottom of a cup of dust cap 10 towards
Under angle be 40 degree to 50 degree, under this scope, the longest-lived of sealing gasket 30, but can not be used for limit the application,
Every limit method using the angle of dust cap 10, all should be the protection domain of the application.
In summary, the assembly method of the application sealing gasket 30 is that the boss 22 of shim 21 inserts the logical of sealing gasket 30
Behind hole 31, submerge in the limited impression 12 of dust cap 10, now, the outer rim of limited impression 12 is pressed on sealing gasket 30, will be sealed
Pad 30 is fixed.Certainly, we can also make into add the mode of packing ring with screw or alignment pin, to reach fixed purpose, but
It is these methods without the method convenience of the above-mentioned boss 22 of use and saves man-hour；It can however not the application is limited with this, institute
State screw or alignment pin adds the mode of packing ring, should also be the protection domain of the application.In addition, boss 22 inserts sealing gasket 30
Through hole 31 after, can also be not inserted into the limited impression 12 of dust cap 10, only be pressed in sealing gasket by the outer rim of limited impression 12
On 30, sealing gasket 30 is fixed, but the effect that fixed effect is not inserted into is good.
Also to be said, refer to Fig. 3 and Fig. 6, the fittings body 40 sets riveting towards one end of the connector 20
Recess 41, the connector 20 set riveting convex portion 24, the riveting recess 41 and described towards one end of the fittings body 40
Rivet the riveting of convex portion 24.It is ring bodies to rivet recess 41 and riveting convex portion 24,360 degree of connection in fact, this riveting
The mode of connection is fast and effective, it is of course also possible to use the mode of spiral connection.
Then, the design principle of the application dust plug is said：Dust plug is by dust cap, connector, sealing gasket, joint
Body, reflection seat and distributary base composition.Connector upper end is linked closely with dust cap with fastening type structure, lower end and fittings body riveting type knot
Structure is riveted.When dust plug is in normal state, sealing gasket is fitted and connected body, make the air, dust, the debris such as moisture content in the external world without
Method enters in dust plug.When the product being connected with dust plug has gas discharge, the internal pressure of dust plug is more than external pressure,
Sealing gasket stress is pushed open, internal gas is discharged rapidly.The angle that sealing gasket stress is pushed open is ensured close by the spacing of dust cap
Packing will not excessive bending.And reflection seat and distributary base can reduce the noise of gas flowing, when gas flows through distributary base, point
If stream seat guiding gas is divided into stem portion, air-flow is again by reflection seat to intermediate flow, and mutual collision rift after meeting, kinetic energy is significantly
Reduce, so that noise when spilling out reduces.
The application is described in detail above, compared with prior art, the application has advantages below：
Firstth, the simple, compact structure of the application, had both realized big degassing function, and had realized dust-proof, waterproof, low noise again
The function of sound；
Secondth, the application makes full use of the excellent specific property of rubber, improves product reliability and service life.
Disclosed above is only several specific embodiments of the present utility model, but the utility model is not limited to this, is appointed
What what those skilled in the art can think change, should all fall in the scope of protection of the utility model.
Claims (4)
1. a kind of dust plug of low noise, the dust plug includes dust cap, sealing gasket, connector and fittings body, described dust-proof
Cap, sealing gasket, connector and fittings body sequentially connect, it is characterised in that also include：One reflection seat and a distributary base, wherein,
The reflection seat is a circular hollow cylinder, and the outer rim of the reflection seat connects with the inner edge of the connector, described anti-
The inner edge for penetrating seat is taper, the reflection seat towards the dust cap side inner edge diameter, it is straight less than the inner edge of other side
Footpath；
The distributary base includes a plane tapering and at least two connecting portions, and one end of the connecting portion and the plane tapering connect
Connect, the other end of the connecting portion connects with the reflection seat and the fittings body；The plane tapering and the fittings body
Between form gap.
2. the dust plug of low noise as claimed in claim 1, it is characterised in that the sealing gasket is the rubber for having among one through hole
Film body, the sealing gasket connect with the connector, and the sealing gasket covers the gas outlet of the connector.
3. the dust plug of low noise as claimed in claim 1, it is characterised in that the connector is a hollow cylinder, wherein,
One end that the connector connects with the dust cap sets a shim, and the shim is by the outlet of the connector
Mouth is divided into two parts；For the shim towards the sealing gasket side, the position of the corresponding through hole sets a boss, described convex
Platform insertion connects the through hole；
, there is radially projecting dust-proof Access Division the shim and the connector junction.
4. the dust plug of low noise as claimed in claim 3, it is characterised in that the dust cap is a cup, wherein,
The cup anchor ring of the dust cap corresponds to the dust-proof Access Division of the connector, sets connecting hole, the dust-proof Access Division
With the connecting hole clamping；
The bottom of a cup of the dust cap is inwardly recessed, and the bottom of a cup of the dust cap is corresponded at the boss of the shim, is opened up
One limited impression, the boss insert the limited impression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426614.5U CN206694533U (en) | 2017-04-21 | 2017-04-21 | The dust plug of low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426614.5U CN206694533U (en) | 2017-04-21 | 2017-04-21 | The dust plug of low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694533U true CN206694533U (en) | 2017-12-01 |
Family
ID=60445518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426614.5U Expired - Fee Related CN206694533U (en) | 2017-04-21 | 2017-04-21 | The dust plug of low noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019199804A (en) * | 2018-05-14 | 2019-11-21 | アイシン精機株式会社 | water pump |
-
2017
- 2017-04-21 CN CN201720426614.5U patent/CN206694533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019199804A (en) * | 2018-05-14 | 2019-11-21 | アイシン精機株式会社 | water pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20190421 |