CN208203845U - A kind of vacuum tight clutch master cylinder - Google Patents
A kind of vacuum tight clutch master cylinder Download PDFInfo
- Publication number
- CN208203845U CN208203845U CN201820763493.8U CN201820763493U CN208203845U CN 208203845 U CN208203845 U CN 208203845U CN 201820763493 U CN201820763493 U CN 201820763493U CN 208203845 U CN208203845 U CN 208203845U
- Authority
- CN
- China
- Prior art keywords
- oil pocket
- sealing
- master cylinder
- cup
- stop collar
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000001050 lubricating effect Effects 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 description 15
- 101150038956 cup-4 gene Proteins 0.000 description 9
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model provides a kind of vacuum tight clutch master cylinder, belongs to technical field of automobile accessories.It, which is solved, is easy to happen the technical problems such as leakage in the oil pocket of existing clutch master cylinder.This vacuum tight clutch master cylinder, including the pump housing, piston and push rod, oil pocket is equipped in the pump housing, one end of the pump housing is sealedly connected with lubricating cup, piston is located in oil pocket and can move along oil pocket, sealing ring is arranged on piston, sealing ring extends to form fixed part and sealing to oil pocket direction fork, fixed position is in the outer peripheral surface for being set in piston, the separate one end connecting with fixed part of sealing sticks on oil pocket inner wall, there is deformation gap between the other end and oil pocket inner wall of sealing, it is formed towards oil pocket direction between sealing and fixed part by indent, lubricating cup is connected to oil pocket, the venthole being in communication with the outside is offered on lubricating cup, the rim of a cup of lubricating cup is fixed with the sheet rubber of energy seal oil cup inner wall.The utility model has the advantages that prevent clutch master cylinder from leaking.
Description
Technical field
The utility model belongs to technical field of automobile accessories, is related to a kind of vacuum tight clutch master cylinder.
Background technique
Clutch master cylinder is one of accessory important in automobile parts, it enables to automobile to hang in the process of moving
Enter gear and freely realizes speed change.
Such as in Chinese patent literature [CN202158116U], a kind of cup structure of extraction on clutch master cylinder, including pump
Body, the pump housing are equipped with the lubricating cup with its one, and the only oral area position spiral cover of lubricating cup has oil cup cap, sets on the annular sidewall of oil cup cap
There is venthole.Though above structure can the intracavitary fuel feeding of oil supply often, since venthole is identical as outside, so leading to air very
It is easily accessible in oil pocket, since the density of air and oil is inconsistent, is marked so the oil pump capacity that will lead to the pump housing in oil pocket is opposite
Quasi- oil pump capacity is reduced, and causing to put into gear a series of serious consequences such as is not thorough.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of vacuum tight clutch
The technical issues of device master cylinder, the utility model solves is how to prevent clutch master cylinder from leaking.
The purpose of this utility model can be realized by the following technical scheme:
A kind of vacuum tight clutch master cylinder, including the pump housing, piston and push rod, the pump housing is interior equipped with oil pocket, described
One end of the pump housing is sealedly connected with lubricating cup, and the piston is located in oil pocket and can move along oil pocket, is arranged on the piston
Sealing ring, which is characterized in that the sealing ring extends to form fixed part and sealing, the fixed position to oil pocket direction fork
In the outer peripheral surface for being set in piston, the separate one end connecting with fixed part of the sealing sticks on oil pocket inner wall, the sealing
There is deformation gap between the other end and oil pocket inner wall in portion, formed between the sealing and fixed part towards oil pocket direction
By indent, when the oil in oil pocket is squeezed by indent, the sealing can be squeezed to deformation gap, and the lubricating cup is connected to oil pocket,
The venthole being in communication with the outside is offered on the lubricating cup, the rim of a cup of the lubricating cup is fixed with the rubber of energy seal oil cup inner wall
Piece.
When a certain amount of brake fluid enters oil pocket, the pressure that brake fluid generates can enter by indent, so that sealing ring produces
Raw deformation causes sealing to squeeze to deformation gap, to realize that oil pocket to sealing up, is prevented brake fluid from oil pocket by sealing ring
Internal leakage goes out to cause piston extension not in place；Lubricating cup can will hold spare brake fluid, when the brake fluid generation in oil pocket is let out
When leakage, the pressure and ambient pressure in oil pocket are inconsistent, and external atmosphere pressure can apply pressure to sheet rubber through venthole, due to
Lubricating cup is connected to oil pocket, so the brake fluid in lubricating cup can flow into oil pocket under the action of external atmosphere pressure, so that oily
Intracavitary oil pressure keeps balancing again.
In above-mentioned vacuum tight clutch master cylinder, parallel stop collar one is offered on the lateral wall of the piston
With stop collar two, the sealing ring between stop collar one and stop collar two, it is described by indent towards stop collar one, it is described close
The two sides in envelope portion are born against on stop collar one and stop collar two.Sealing ring can be fixed on work by stop collar one and stop collar two
Beyond the Great Wall, it prevents from being detached from piston, can be impacted after brake fluid capable of being made to enter oil inlet by indent by indent, so as to seal
The whole generation deformation of circle makes sealing ring is stronger to stick on oil pocket inner wall, prevents brake fluid from generating leakage.
In above-mentioned vacuum tight clutch master cylinder, the stop collar two protrudes relatively with stop collar one and stop collar
Two side sticks on oil pocket inner wall.Above structure can prevent sealing ring be squeezed into deformation stop collar two and oil pocket inner wall it
Between gap in.
In above-mentioned vacuum tight clutch master cylinder, cup lid is arranged on the lubricating cup, the venthole is provided with
The middle of cup lid.
In above-mentioned vacuum tight clutch master cylinder, the sheet rubber is clamped between cup lid and the rim of a cup of lubricating cup.
Above structure can preferably fix sheet rubber, and preventing sheet rubber to be detached under external pressure causes brake fluid and air separation to lose
It loses.
In above-mentioned vacuum tight clutch master cylinder, the center of the sheet rubber has the compression that recess is formed downwards
Portion, the compression zone are protruded with respect to the bottom of sheet rubber, and being located at around compression zone on the sheet rubber has reversed concave shape
At reinforcement part.Brake fluid in lubricating cup can preferably the oil pressure in oil pocket be pressed into oil pocket by compression zone after declining, and be added
Strong portion can reinforce the structure of compression zone, prevent compression zone by oil pressure to blocking venthole.
Compared with prior art, this vacuum tight clutch master cylinder, which has, prevents the excellent of clutch master cylinder leakage air inlet body
Point.
Detailed description of the invention
Fig. 1 is that this vacuum tight clutch master cylinder faces schematic cross-sectional view.
In figure, 1, the pump housing；10, oil pocket；2, piston；20, stop collar one；21, stop collar two；3, push rod；4, lubricating cup；40,
Cup lid；41, venthole；42, sheet rubber；420, compression zone；421, reinforcement part；5, sealing ring；50, fixed part；51, sealing；
52, by indent；6, deformation gap.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, vacuum tight clutch master cylinder includes the pump housing 1, piston 2 and push rod 3, oil pocket is equipped in the pump housing 1
10, one end of the pump housing 1 is sealedly connected with lubricating cup 4, and piston 2 is located in oil pocket 10 and can move along oil pocket 10, is arranged on piston 2
There is sealing ring 5, sealing ring 5 extends to form fixed part 50 and sealing 51 to 10 direction of oil pocket fork, and fixed part 50, which is located at, to be arranged
In the outer peripheral surface of piston 2, the separate one end connecting with fixed part 50 of sealing 51 sticks on 10 inner wall of oil pocket, sealing 51 it is another
There is deformation gap 6 between 10 inner wall of one end and oil pocket, formed between sealing 51 and fixed part 50 towards 10 direction of oil pocket
By indent 52, when the oil in oil pocket 10 is squeezed by indent 52, sealing 51 can be squeezed to deformation gap 6, lubricating cup 4 and oil pocket 10
It is connected to, the venthole being in communication with the outside is offered on lubricating cup 4, the rim of a cup of lubricating cup 4 is fixed with the sheet rubber of energy 4 inner wall of seal oil cup
42。
As shown in Figure 1, parallel stop collar 1 and stop collar 2 21 are offered on the lateral wall of piston 2, sealing ring 5
Between stop collar 1 and stop collar 2 21, by indent 52 towards stop collar 1, the two sides of sealing 51 are born against
On stop collar 1 and stop collar 2 21, the opposite side with the protrusion of stop collar 1 and stop collar 2 21 of stop collar 2 21 reclines
In 10 inner wall of oil pocket.
As shown in Figure 1, being arranged with cup lid 40 on lubricating cup 4, venthole is provided with the middle of cup lid 40, and sheet rubber 42 clamps
Between cup lid 40 and the rim of a cup of lubricating cup 4, the center of sheet rubber 42 has the compression zone 420 that recess is formed downwards, compression zone 420
The bottom of opposite sheet rubber 42 is protruded, and the reinforcement part that there is reversed recess to be formed is located at around compression zone 420 on sheet rubber 42
421。
When a certain amount of brake fluid enters oil pocket 10, the pressure that brake fluid generates can enter compression zone 420, so that sealing
Circle, which generates deformation, causes sealing 51 to squeeze to deformation gap 6, to realize that oil pocket 10 to sealing up, is prevented from braking by sealing ring
Liquid is gone out piston 10 is caused to stretch not in place from 10 internal leakage of oil pocket；Lubricating cup 4 can will hold spare brake fluid, when in oil pocket 10
Brake fluid when generating leakage, the pressure and ambient pressure in oil pocket 10 are inconsistent, external atmosphere pressure can penetrate venthole 41 to
Sheet rubber 42 applies pressure, since lubricating cup 4 is connected to oil pocket 10, so the brake fluid in lubricating cup 4 can be in external atmosphere pressure
Under the action of flow into oil pocket 10 in so that the oil pressure in oil pocket 10 keeps balancing again.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of vacuum tight clutch master cylinder, including the pump housing, piston and push rod, the pump housing is interior to be equipped with oil pocket, the pump
One end of body is sealedly connected with lubricating cup, and the piston is located in oil pocket and can move along oil pocket, is arranged on the piston close
Seal, which is characterized in that the sealing ring extends to form fixed part and sealing to oil pocket direction fork, the fixed position in
It is set in the outer peripheral surface of piston, the separate one end connecting with fixed part of the sealing sticks on oil pocket inner wall, the sealing
The other end and oil pocket inner wall between there is deformation gap, formed between the sealing and fixed part towards oil pocket direction by
Indent, when the oil in oil pocket is squeezed by indent, the sealing can be squeezed to deformation gap, and the lubricating cup is connected to oil pocket, institute
The venthole for offering and being in communication with the outside on lubricating cup is stated, the rim of a cup of the lubricating cup is fixed with the sheet rubber of energy seal oil cup inner wall.
2. vacuum tight clutch master cylinder according to claim 1, which is characterized in that opened on the lateral wall of the piston
Equipped with parallel stop collar one and stop collar two, the sealing ring is described by indent between stop collar one and stop collar two
Towards stop collar one, the two sides of the sealing are born against on stop collar one and stop collar two.
3. vacuum tight clutch master cylinder according to claim 2, which is characterized in that the stop collar two is opposite with limit
The side of the position protrusion of ring one and stop collar two sticks on oil pocket inner wall.
4. vacuum tight clutch master cylinder according to claim 1, which is characterized in that be arranged with cup on the lubricating cup
Lid, the venthole are provided with the middle of cup lid.
5. vacuum tight clutch master cylinder according to claim 4, which is characterized in that the sheet rubber is clamped in cup lid
Between the rim of a cup of lubricating cup.
6. vacuum tight clutch master cylinder according to claim 1, which is characterized in that the center of the sheet rubber has
The compression zone that recess is formed downwards, the compression zone are protruded with respect to the bottom of sheet rubber, and compression zone is located on the sheet rubber
The reinforcement part that there is surrounding reversed recess to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763493.8U CN208203845U (en) | 2018-05-22 | 2018-05-22 | A kind of vacuum tight clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763493.8U CN208203845U (en) | 2018-05-22 | 2018-05-22 | A kind of vacuum tight clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203845U true CN208203845U (en) | 2018-12-07 |
Family
ID=64518020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820763493.8U Expired - Fee Related CN208203845U (en) | 2018-05-22 | 2018-05-22 | A kind of vacuum tight clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203845U (en) |
-
2018
- 2018-05-22 CN CN201820763493.8U patent/CN208203845U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 314200, Cao 1083 Road, Cao Qiao street, Jiaxing, Zhejiang, Pinghu Patentee after: Zhejiang birui Auto Parts Co.,Ltd. Address before: 314214, Cao 1083 Road, Cao Qiao street, Jiaxing, Zhejiang, Pinghu Patentee before: ZHEJIANG BORRY AUTO PARTS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 |