CN206107226U - Plunger type master cylinder - Google Patents
Plunger type master cylinder Download PDFInfo
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- CN206107226U CN206107226U CN201621080472.3U CN201621080472U CN206107226U CN 206107226 U CN206107226 U CN 206107226U CN 201621080472 U CN201621080472 U CN 201621080472U CN 206107226 U CN206107226 U CN 206107226U
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- open slot
- piston
- master cylinder
- spring
- connecting pole
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Abstract
The application discloses plunger type master cylinder includes: first piston is provided with first open slot, and the second piston is provided with the second open slot, and the opening of first open slot and the opening of second open slot all are provided with the chamfer, inclined plane along the axis direction slope of being close to first open slot of the chamfer of first open slot, the inclined plane of the chamfer of second open slot inclines along the axis direction by shoulder second open slot, the opening of first open slot can be linked together or seal mutually with first passageway, the opening of second open slot can be linked together or seal mutually with the second channel. Because first piston and second piston all need not set up piston hole and piston hole valve port to can reduce plunger type master cylinder's the production degree of difficulty, reduction in production cost. Simultaneously owing to need not set up piston hole and piston hole valve port for the axial length of first piston and the axial length of second piston shorten, thereby can shorten main cylinder main body's length, and then can reduce the shared installation space of plunger type master cylinder.
Description
Technical field
The utility model is related to automobile equipment manufacturing technology field, more particularly to a kind of plunger typed master cylinder.
Background technology
Master cylinder is the critical component in brake system of car, and master cylinder is in hydraulic braking system for automobile in system
Crucial control part, is the output heart of brake fluid system work capacity between dynamic pedal and brake；Braking at present is led
Cylinder is roughly divided into compensation cellular type, center valve type and plunger type.Plunger typed master cylinder is mainly back and forth transported by using piston in cylinder body
Process that is dynamic so that the volume of seal operation cavity volume changes, reducing pressure so as to realize pressurizeing.
Plunger typed master cylinder mainly includes master cylinder body 1, the first spring base, second spring seat, braking primary cup, the secondary skin of braking
The 5, first spring of bowl and second spring, wherein master cylinder body 1 include the first chamber 12 and the second chamber 13, and the first chamber 12 is by master cylinder cylinder
The braking primary cup 4a of body 1, first, braking secondary leather cup 5, the region of a relative closure of the composition of first piston 11, the second chamber 13
It is the region that primary cup 4b, the relative closure that second piston 7 is constituted are braked by master cylinder body 1, second；First spring base point
For the type 8 of the first spring base I and the type 10 of the first spring base II, second spring seat is divided into the type 2 of second spring seat I and second spring seat II
Type 6, the type 8 of the first spring base I and the type 10 of the first spring base II are placed in the first chamber 12, the type 2 of second spring seat I and second spring seat
II type 6 is placed in the second chamber 13, and the type 8 of the first spring base I is connected with the type 10 of the first spring base II by the first spring base screw 9
Connect, the type 2 of second spring seat I is connected with the type 6 of second spring seat II by second spring seat screw 3, wherein the first spring base II
Type 10 stretches to the inside of first piston 11 and abuts against with the end of first piston 11, the type 8 of the first spring base I and second piston
7 tail end is abutted against, and wherein the type 6 of second spring seat II stretches to the inside of second piston 7 and offsets with the tail end of second piston 7
Connect, the type 2 of second spring seat I is connected with master cylinder body 1, two ends of the first spring respectively with the type 8 of the first spring base I and
The type 10 of one spring base II is abutted against, two ends of second spring respectively with the type 2 of second spring seat I and the type 6 of second spring seat II
End abuts against.
First piston 11 is used for the end that abuts against with the type 8 of the first spring base I and is provided with first piston ports valve mouth C, and second
The head end of piston 7 is provided with second piston ports valve mouth D, master cylinder body 1 be provided with the first liquid mouth for being connected with the first chamber 12 with
And the opening of first passage A, first passage A can be connected with the first piston ports valve mouth C of first piston 11；Master cylinder body 1
The opening for being additionally provided with the second liquid mouth and second channel B, the second channel B being connected with the second chamber 13 can be with second piston
7 second piston ports valve mouth D is connected.
When plunger typed master cylinder does not work, brake fluid is along the first liquid mouth through first passage A and first piston ports valve mouth C
It is flowed in the first chamber 12, while brake fluid is flowed to second along the second liquid mouth through second channel B and second piston ports valve mouth D
In chamber 13.
It is main to include following several stages when plunger typed master cylinder works：
Piston starts action：Active force starts to promote first piston 11, while first piston 11 passes through the type of the first spring base I
8 promotion second piston 7, i.e. first pistons 11 and second piston 7 almost travel forward simultaneously.
Idle stroke：First piston 11 and second piston 7 have travelled forward, but first piston ports valve mouth C and second piston
The opening of i.e. first piston ports valve mouth C and first passage A is in connected state when ports valve mouth D not up to fully seals closed mode
State, the opening of second piston ports valve mouth D and second channel B is in connected state, and movement travel at this moment is can not to set up pressure
, this segment distance is exactly idle stroke.
Pressurization：When first piston ports valve mouth C and second piston ports valve mouth D reach when fully sealing closing i.e. first piston hole
Valve port C closes the opening of first passage A, second piston ports valve away from the opening of first passage A and the main part of first piston 11
Mouthful D closes the opening of second channel B away from the opening of second channel B and the main part of second piston 7, and now brake fluid is not
The first chamber 12 and the second chamber 13 can be separately flowed into from passage and piston hole valve port, the first chamber 12 and the second chamber 13 begin setting up pressure
Power, and with active force and stroke increase and pressure is increased gradually.
Pressurize：When active force and stroke reach a certain specific value, in the case that active force and stroke are not further added by, pressure
Try hard to keep and hold a relative stationary value.
Decompression：When active force and stroke reduce gradually, first piston 11 and second piston 7 are (first for moving backward
The direction of motion and second piston of the direction of motion of piston 11 and the direction of motion of second piston 7 and pressure process first piston 11
7 direction of motion is contrary), and now first piston ports valve mouth C and first passage A and second piston ports valve mouth D and second
Passage B continuation holdings fully seal the pressure of closed mode, the first chamber 12 and the second chamber 13 and start slowly to reduce, until pressure is
Zero.
Idle stroke：When pressure is reduced to zero, now first piston ports valve mouth C and second piston ports valve mouth D is not up to complete
Sealing is closed, and first piston 11 and second piston 7 are still moved backward.
Return to original position：When active force is wholly absent, first piston 11 and second piston 7 return to origin-location.
Due to plunger typed master cylinder mainly using first piston ports valve mouth C and first passage A whether in closed state and
Whether second piston ports valve mouth D and second channel B are in closed state realizing braking effect.First piston 11 and second is lived
Plug 7 is certain thickness cylindrical metal stopper, and piston hole valve port is the hole opened up along the circumference of cylindrical metal stopper,
Limited by processing technology, cause piston hole valve port to be difficult to process and be difficult to carry out polishing place to the hangnail of piston hole valve port
Reason, increased the production difficulty of plunger typed master cylinder.
Therefore, the production difficulty for how reducing plunger typed master cylinder is those skilled in the art's technical issues that need to address.
Utility model content
In view of this, the purpose of the application is to provide a kind of plunger typed master cylinder, and the production that can reduce plunger typed master cylinder is difficult
Degree, reduces the installing space of master cylinder.
This application provides a kind of plunger typed master cylinder, including master cylinder body, the first spring base, second spring seat, the first system
Dynamic primary cup, the second braking primary cup, braking secondary leather cup, the first spring and second spring, wherein the master cylinder body includes the
One chamber and the second chamber, first chamber be by the master cylinder body, the first braking primary cup, the braking secondary leather cup, the
One piston composition a relative closure region, second chamber be by the master cylinder body, it is described second braking primary cup,
The region of one relative closure of second piston composition；The master cylinder body is additionally provided with first be connected with first chamber
Liquid mouth and first passage；The master cylinder body is additionally provided with the second liquid mouth for being connected with second chamber and second logical
Road, the first piston is provided with the first open slot, and the second piston is provided with the second open slot, first open slot
The opening of opening and second open slot is provided with chamfering；The inclined plane of the chamfering of first open slot is along near institute
The axis direction for stating the first open slot is inclined, the second open slot described in the inclined plane along shoulder of the chamfering of second open slot
Axis direction incline；The opening of first open slot can be connected with the first passage or mutually close；Described second
The opening of open slot can be connected with the second channel or mutually close.
Preferably, first spring base is connected with the bottom land of second open slot towards the end face of the first piston
Connect, first open slot is provided with the first connecting pole, the groove of the first end of first connecting pole and first open slot
Bottom is connected, and the second end of first connecting pole is located at the position of the opening of first open slot, and described first
Spring base is connected with the second end of first connecting pole, and first spring stretches to the interior of first open slot and covers
Located at the outside of first connecting pole and first spring stretches to the end of first open slot and described first and opens
The bottom land of mouth groove is abutted against, and first spring is exposed to the end on the outside of first open slot with first spring base
Abut against；First spring base can extend into first open slot and first spring base can be along described
The axially-movable of one open slot；First spring base has a hollow bulb, the second end of first connecting pole can extend into
In the hollow bulb of first spring base and the second end of first connecting pole can be along the hollow of first spring base
Portion's axially-movable.
Preferably, the second spring seat is connected with the master cylinder body, and second open slot is provided with the second company
Post is connect, the first end of second connecting pole is connected with the bottom land of second open slot, the second of second connecting pole
End is located at the position of the opening of second open slot, the second end of the second spring seat and second connecting pole
It is connected, the second spring stretches to the interior of second open slot and is sheathed on the outside of second connecting pole and described
Second spring stretches to the end of second open slot and the bottom land of second open slot is abutted against, and the second spring is sudden and violent
It is exposed to the end on the outside of second open slot to abut against with the second spring seat；The second spring seat can extend into institute
State in the second open slot and the second spring seat can be along the axially-movable of second open slot；The second spring seat
With hollow bulb, the second end of second connecting pole can extend into the hollow bulb of the second spring seat and described second
Second end of connecting pole can be along the hollow bulb axially-movable of the second spring seat.
Preferably, the second end of first connecting pole is provided with connection bump portion, and first spring base has holding
Mouthful, the holding mouth of first spring base is abutted against or is separated with the connection bump portion of first connecting pole.
Preferably, the second end of second connecting pole is provided with connection bump portion, and the second spring seat tool has holding
Mouthful, the holding mouth of the second spring seat is abutted against or is separated with the connection bump portion of second connecting pole.
Preferably, the bottom land of second open slot be used for the end face that is connected with first spring base be provided with it is recessed
Groove, the end of first spring base is placed in the groove.
A kind of plunger typed master cylinder provided herein, including master cylinder body, the first spring base, second spring seat, first
Braking primary cup, the second braking primary cup, braking secondary leather cup, the first spring and second spring, wherein master cylinder body includes first
Chamber and the second chamber, the first chamber is a phase being made up of master cylinder body, the first braking primary cup, braking secondary leather cup, first piston
To the region closed, the second chamber is the area of a relative closure being made up of master cylinder body, the second braking primary cup, second piston
Domain；Master cylinder body is additionally provided with the first liquid mouth and first passage being connected with the first chamber；Master cylinder body is additionally provided with and
The second liquid mouth and second channel that two chambers are connected, first piston is provided with the first open slot, and second piston is provided with second
Open slot, the opening of the first open slot and the opening of the second open slot are provided with chamfering；The inclination of the chamfering of the first open slot
Face inclines along the axis direction near first open slot, the described in the inclined plane along shoulder of the chamfering of the second open slot
The axis direction of two open slots is inclined；The opening of the first open slot can be connected with first passage or mutually close；Second opening
The opening of groove can be connected with second channel or mutually close.
With needing in prior art compared with piston arranges piston hole valve port, by the opening setting edge by the first open slot
The chamfering extended near its axis direction, the opening of the second open slot is arranged along falling for extending near its axis direction
Angle, the chamfering of the first open slot can with the opening in communication of first passage or mutually close, the chamfering of the second open slot can be with
The opening in communication of second channel is compared, and thereby may be ensured that normally using for plunger typed master cylinder.Due to first piston and
Two pistons need not arrange piston hole and piston hole valve port, such that it is able to reduce the production difficulty of plunger typed master cylinder.Simultaneously
In the case where first piston and second piston movement travel are constant, due to piston hole and piston hole valve port need not be arranged, make
First piston axial length and second piston axial length shorten (compared with piston of the prior art, the of the application
The axial length of both one piston and second piston shortens 10mm or so), such that it is able to shorten master cylinder body length (with it is existing
Have the master cylinder body in technology to compare, contraction in length 20mm of the master cylinder body in the application or so), and then plunger can be reduced
Installing space shared by formula master cylinder.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of plunger typed master cylinder in prior art；
Fig. 2 is the structural representation after the first piston in plunger typed master cylinder shown in Fig. 1 amplifies；
Fig. 3 is the structural representation after the second piston amplification of plunger typed master cylinder shown in Fig. 1；
Fig. 4 is the structural representation of plunger typed master cylinder in specific embodiment provided herein；
Fig. 5 is the structural representation after the first piston in plunger typed master cylinder shown in Fig. 4 amplifies；
Fig. 6 is the structural representation after the second piston in plunger typed master cylinder shown in Fig. 4 is amplified.
In wherein Fig. 1 to Fig. 3：
Master cylinder body 1, the type 2 of second spring seat I, the braking primary cup 4a of second spring seat screw 3, second, braking secondary leather cup
5th, second braking primary cup 4b, the type 6 of second spring seat II, second piston 7, the type 8 of the first spring base I, the first spring base screw 9,
First braking primary cup 4a, the type 10 of the first spring base II, first piston 11, the first chamber 12, the second chamber 13, first passage A, second
Passage B, first piston ports valve mouth C, second piston ports valve mouth D；
In Fig. 4 to Fig. 6：
Master cylinder body 1-1, second spring seat 1-2, the second braking primary cup 1-3a, braking secondary leather cup 1-4, second piston 1-
5th, the second connecting pole 1-5a, the first spring base 1-6, first braking primary cup 1-3b, first piston 1-7, the first connecting pole 1-7a,
First chamber 1-8, the second chamber 1-9, first passage 1-A, second channel 1-B, chamfering 1-C of the first open slot, the second open slot
Chamfering 1-D.
Specific embodiment
The utility model discloses a kind of plunger typed master cylinder, can reduce the production difficulty of plunger typed master cylinder, reduce plunger
Installing space shared by formula master cylinder.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 4 to Fig. 6 is refer to, Fig. 4 is the structural representation of plunger typed master cylinder in specific embodiment provided herein
Figure, Fig. 5 is the structural representation after the first piston in plunger typed master cylinder shown in Fig. 4 amplifies, and Fig. 6 is plunger type master shown in Fig. 4
The structural representation after second piston amplification in cylinder.
In this embodiment, a kind of plunger typed master cylinder, including master cylinder body 1-1, the first spring base 1-6, second
Spring base 1-2, the first braking primary cup 1-3b, the second braking primary cup 1-3a, braking secondary leather cup 1-4, the first spring and second
Spring, wherein master cylinder body 1-1 include that the first chamber 1-8 and the second chamber 1-9, the first chamber 1-8 are by master cylinder body, the second braking
Primary cup 1-3a, braking secondary leather cup 1-4, the region of a relative closure of first piston 1-7 compositions, the second chamber 1-9 is by leading
Cylinder cylinder body, the first braking primary cup 1-3b, the region of a relative closure of second piston 1-5 composition；Master cylinder body 1-1 also sets
It is equipped with the first liquid mouth and first passage 1-A being connected with the first chamber 1-8；Master cylinder body 1-1 is additionally provided with and the second chamber 1-9
The second liquid mouth being connected and second channel 1-B, wherein, first piston 1-7 is provided with the first open slot, second piston 1-5
The second open slot is provided with, the opening of the first open slot and the opening of the second open slot are provided with chamfering；First open slot
The inclined plane of chamfering 1-C is inclined along the axis direction near the first open slot, the inclined plane edge of chamfering 1-D of the second open slot
The axis direction for the open slot of shoulder second is inclined；The opening of the first open slot can be connected with first passage 1-A or mutually seal
Close；The opening of the second open slot can be connected with second channel 1-B or mutually close.
It is arranged such, when plunger typed master cylinder does not work, due to chamfering 1-C of the first open slot and falling for the second open slot
The inclined plane of both angle 1-D extends each along the direction of close its axis, therefore chamfering 1-C and first passage of the first open slot
There is space between the opening of 1-A, there is space i.e. between chamfering 1-D of the second open slot and the opening of second channel 1-B
The opening of one open slot and the opening of the second open slot are connected respectively with first passage 1-A and second channel 1-B, brake fluid edge
The first liquid mouth to be flowed in the first chamber 1-8 through the fillet surface of first passage 1-A and the opening of the first open slot, while braking
Liquid along the second liquid mouth through second channel 1-B and the opening of the second open slot chamfering surface current in the second chamber 1-9.
It is main to include following several stages when plunger typed master cylinder works：
Piston starts action：Active force starts to promote first piston 1-7, while first piston 1-7 passes through the first spring base
1-6 promotes second piston 1-5, i.e. first piston 1-7 and second piston 1-5 almost to travel forward simultaneously.
Idle stroke：First piston 1-7 and second piston 1-5 have travelled forward, but chamfering 1-C of the first open slot and
Space is also there are between the opening of one passage 1-A, between chamfering 1-D of the second open slot and the opening of second channel 1-B also
The opening that space i.e. the first open slot be there are with first passage 1-A is in connected state, the second open slot and second channel 1-B
Opening be in connected state, movement travel at this moment can not set up pressure, and this segment distance is exactly idle stroke.
Pressurization：When chamfering 1-C of the first open slot is away from the opening of first passage 1-A and the main part of first piston 1-7
The opening of closing first passage 1-A, the opening and second piston 1-5 of chamfering 1-D of the second open slot away from second channel 1-B
The opening of main part closing second channel 1-B is chamfering 1-C and first passage 1-A and the second open slot of the first open slot
Chamfering 1-D continues holding and fully seals closed mode with second channel 1-B, and now brake fluid can not be along passage and opening
The fillet surface of groove separately flows into the first chamber 1-8 and the second chamber 1-9, and the first chamber 1-8 and the second chamber 1-9 begins setting up pressure, and with
The increase of both active force and first piston 1-7 and second piston 1-5 stroke and pressure is increased gradually.
Pressurize：When both active force and first piston 1-7 and second piston 1-5 stroke reaches a certain specific value,
In the case that both active force and first piston 1-7 and second piston 1-5 stroke is not further added by, pressure keep one it is relative
Stationary value.
Decompression：When both active force and first piston 1-7 and second piston 1-5 stroke reduces gradually, first piston
1-7 and second piston 1-5 be move backward (direction of motion of first piston 1-7 and the direction of motion of second piston 1-5 with plus
Press through journey first piston 1-7 the direction of motion and second piston 1-5 the direction of motion it is contrary), and now the first open slot
Chamfering 1-C continues holding and fully seals closing with chamfering 1-D of first passage 1-A and the second open slot with second channel 1-B
The pressure of state, the first chamber 1-8 and the second chamber 1-9 starts slowly to reduce, until pressure is zero.
Idle stroke：When pressure is reduced to zero, now between the opening of chamfering 1-C of the first open slot and first passage 1-A
There is gap, there is gap, i.e. the first open slot and between chamfering 1-D of the second open slot and the opening of second channel 1-B
One passage 1-A is connected, and the second open slot is connected with second channel 1-B, and first piston 1-7 and second piston 1-5 are still past
After move, existing gap gradually increases between chamfering 1-C and the opening of first passage 1-A of the first open slot, and second opens
Existing gap gradually increases between chamfering 1-D and the opening of second channel 1-B of mouth groove.
Return to original position：When active force is wholly absent, first piston 1-7 and second piston 1-5 return to origin-location, now
Existing gap reaches maximum between chamfering 1-C of the first open slot and the opening of first passage 1-A, the second open slot
Existing gap reaches maximum between the opening of chamfering 1-D and second channel 1-B.
With needing in prior art compared with piston arranges piston hole valve port, by the opening setting edge by the first open slot
The chamfering extended near its axis direction, the opening of the second open slot is arranged along falling for extending near its axis direction
Angle, chamfering 1-C of the first open slot can with the opening in communication of first passage 1-A or mutually close, the chamfering of the second open slot
1-D can with the opening in communication of second channel 1-B or compared with, thereby may be ensured that normally using for plunger typed master cylinder.Due to
First piston 1-7 and second piston 1-5 need not arrange piston hole and piston hole valve port, such that it is able to reduce plunger type master
The production difficulty of cylinder, while production cost can also be reduced.Simultaneously movement travel in first piston 1-7 and second piston 1-5 not
In the case of change, due to piston hole and piston hole valve port need not be arranged so that first piston 1-7 axial lengths and second are lived
Plug 1-5 axial length shorten (compared with piston of the prior art, the first piston 1-7 and second piston 1-5 two of the application
The axial length of person shortens 10mm or so), such that it is able to shorten the length of master cylinder body 1-1 (with master cylinder of the prior art
Main body is compared, contraction in length 20mm of master cylinder body 1-1 in the application or so), and then can reduce shared by plunger typed master cylinder
Installing space.
It should be noted that in this embodiment, chamfering 1-C of the first open slot and the axle of first piston 1-7
Angle between line and the angle between chamfering 1-D of the second open slot and the axis of second piston 1-5 are preferably
60°。
Also, it should be noted that in this embodiment, the diameter of first piston 1-7 and second piston 1-5
Diameter is determined all in accordance with actual use demand.
In further scheme, the end face of the bottom land of the first spring base 1-6 and the second open slot towards first piston 1-7
It is connected, the first open slot is provided with the first connecting pole 1-7a, the first end of the first connecting pole 1-7a and the groove of the first open slot
Bottom is connected, and second end of the first connecting pole 1-7a is located at the position of the opening of the first open slot, the first spring base 1-6
It is connected with second end of the first connecting pole 1-7a, the first spring stretches to the interior of the first open slot and is sheathed on the first connecting pole
The outside of 1-7a and the first spring stretches to the end of the first open slot and the bottom land of the first open slot is abutted against, the first spring is sudden and violent
It is exposed to the end on the outside of the first open slot to abut against with the first spring base 1-6；First spring base 1-6 can extend into the first opening
Groove is interior and the first spring base 1-6 can be along the first open slot axially-movable, and the first spring base 1-6 has hollow bulb, and first connects
The second end for meeting post 1-7a can extend into the hollow bulb of the first spring base 1-6 and second end of the first connecting pole 1-7a can
Along the hollow bulb axially-movable of the first spring base 1-6.
It is arranged such, it can be ensured that when first piston 1-7 movement under force, first piston 1-7 is towards near second piston
The direction motion of 1-5, now the first spring 1-6 is stretched in the first open slot, and during first piston 1-7 is moved,
Second end of the first connecting pole 1-7a can extend into the hollow bulb of first piston 1-7 and can be along first piston 1-7's
Hollow bulb axially-movable, so as to ensure that first piston 1-7 can be towards the direction motion near second piston 1-5.When the first work
After power suffered by plug 1-7 disappears, under the active force of the first spring and the active force of second spring, second piston 1-5 resets, the
One piston 1-7 resets.As first piston 1-7 when the direction motion near second piston 1-5, in the first spring and the first bullet
In the presence of spring abutment 1-6, second piston 1-5 can simultaneously be moved with first piston 1-7.By the way that the first connecting pole 1-7a is set
It is placed in the first open slot, the first spring base 1-6 is connected with second end of the first connecting pole 1-7a, thus, and prior art
In need to arrange two the first spring bases and two the first spring bases and need to be connected using the first spring base screw and compare, only
Need to arrange the connection that a spring base is capable of achieving between the first spring base 1-6 and first piston 1-7, such that it is able to reduce zero
The setting quantity of part, reduces production cost, while can also reduce assembling difficulty, can improve packaging efficiency.
It should be noted that in this embodiment, the axial length of the hollow bulb of the first spring base 1-6 is
The movement travel of one piston 1-7, the axial length of the hollow bulb of the first spring base 1-6 is selected according to actual use demand
Select.
Also, it should be noted that in this embodiment, the first spring base 1-5 can be along the axle of the first open slot
Refer to that the first spring base 1-5 can be moved towards the bottom land direction closer or far from the first open slot to motion, the first connecting pole
Second end of 1-7a can be along the hollow bulb axially-movable of the first spring base 1-5, and specifically referring to the first connecting pole 1-7a can
Hollow bulb along the first spring base 1-5 is moved towards the direction closer or far from second piston 1-5.
Additionally, in this embodiment, second spring seat 1-2 is connected with master cylinder body 1-1, and the second open slot sets
The second connecting pole 1-5a is equipped with, the first end of the second connecting pole 1-5a is connected with the bottom land of the second open slot, the second connecting pole
Second end of 1-5a is located at the position of the opening of the second open slot, second spring seat 1-2's and the second connecting pole 1-5a
Second end is connected, and second spring stretches to the interior of the second open slot and is sheathed on outside and second bullet of the second connecting pole 1-5a
Spring stretches to the end of the second open slot and the bottom land of the second open slot is abutted against, and second spring is exposed to the second open slot outside
End abut against with second spring seat 1-2；Second spring seat 1-2 can extend into the second open slot and second spring seat 1-
2 can be along the axially-movable of the second open slot, and second spring seat 1-2 has hollow bulb, second end of the second connecting pole 1-5a
Can extend into the hollow bulb of second spring seat 1-2 and second end of the second connecting pole 1-5a can be along second spring seat 1-
2 hollow bulb axially-movable.
When second piston 1-5 in the presence of the first spring and the first spring base 1-6 when moving, second spring seat 1-2 energy
Enough stretch in the second open slot and along the axially-movable of the second open slot and second end of the second connecting pole 1-5a can stretch
Enter to the hollow bulb of second spring seat 1-2 and along the hollow bulb axially-movable of second spring seat 1-2.By the way that second is connected
Post 1-5a is arranged in the second open slot, and second spring seat 1-2 is connected with second end of the second connecting pole 1-5a, thus, with
Two second spring seats of setting are needed in prior art and two second spring seats need to be connected using second spring seat screw
Compare, it is only necessary to a spring base is set and is capable of achieving connection between second spring seat 1-2 and second piston 1-5, so as to can
Further to reduce the setting quantity of part, production cost is reduced, while can also reduce assembling difficulty, assembling effect can be improved
Rate.
It should be noted that in this embodiment, the axial length of the hollow bulb of second spring seat 1-2 is
The movement travel of two piston 1-5, the axial length of the hollow bulb of second spring seat 1-2 determines according to actual use demand.
Also, it should be noted that in this embodiment, second spring seat 1-2 can be along the axle of the second open slot
Refer to that second spring seat 1-2 can be moved towards the bottom land direction closer or far from the second open slot to motion, the second connecting pole
Second end of 1-5a can be along the hollow bulb axially-movable of second spring seat 1-2, and specifically referring to the second connecting pole 1-5a can
Hollow bulb direction along second spring seat 1-2 is used to connect the end of second spring seat 1-2 closer or far from master cylinder body 1-1
Direction motion.
In further scheme, it is connected with the first spring base 1-6 for the ease of the first connecting pole 1-7a, in this tool
In body embodiment, second end of the first connecting pole 1-7a is provided with connection bump portion, and the first spring base 1-6 has holding mouth,
The holding mouth of the first spring base 1-6 is abutted against or is separated with the connection bump portion of the first connecting pole 1-7a.
Thus, when the holding mouth of the connection bump portion of the first connecting pole 1-7a and the first spring base 1-6 is abutted against, now the
One piston 1-7 is in non-stress, after first piston 1-7 stress, the connection bump portion and first of the first connecting pole 1-7a
The holding mouth of spring base 1-6 is separated, and now the first spring base 1-6 is stretched in the first open slot and the first connecting pole 1-7a
Along the axially-movable of the hollow bulb of the first spring base 1-6, after the power suffered by first piston 1-7 disappears, first lives at the second end
Plug 1-7 recovers to original state and after first piston 1-7 motions in place, now the connection bump portion of the first connecting pole 1-7a and the
The holding mouth of one spring base 1-6 is abutted against.First is may insure thus by connection bump portion is arranged in the first connecting pole 1-7a
Between connecting pole 1-7a and the first spring base 1-6 connect tightness simultaneously, the connection bump set by the first connecting pole 1-7a
Portion also acts as spacing effect, it is ensured that the accuracy of first piston 1-7 motions.
Additionally, be connected with second spring seat 1-2 for the ease of the second connecting pole 1-5a, in this embodiment,
Second end of the second connecting pole 1-5a is provided with connection bump portion, and second spring seat 1-2 has holding mouth, second spring seat 1-2
Holding mouth and the second connecting pole 1-5a the phase clamping of connection bump portion.Second connecting pole 1-5a blocks with second spring seat 1-2 phases
Connect, it can be ensured that the tightness connected between the second connecting pole 1-5a and second spring seat 1-2.
It should be noted that in this embodiment, the connection bump portion of the first connecting pole 1-7a and second connect
Connect post 1-5a connection bump portion be radially orientated each along it away from axis direction extend, so may insure opening for spring base
Mouth can be abutted against with connection bump portion.
Also, it should be noted that in this embodiment, the holding mouth of the first spring base 1-6 refers to the first spring base
The opening of the hollow bulb of 1-6, the holding mouth of the first spring base 1-6 is provided with holding projection, and the holding is raised along near first
The axis direction of the hollow bulb of spring base 1-6 extends, and the holding mouth of second spring seat 1-2 refers to that second spring seat 1-2's is hollow
The opening in portion, the holding mouth of second spring seat 1-2 is provided with holding projection, and the holding is raised along near second spring seat 1-2
Hollow bulb axis direction extend.
Needs illustrate further, in this embodiment, the connection bump portion of the first connecting pole 1-7a and
The connection bump portion of the second connecting pole 1-5a is pad, the first connecting pole 1-7a and the second connecting pole 1-5a be provided with for
The clamping groove of pad is installed, certainly, is also not excluded for using other set-up modes.
In further scheme, the end face that the bottom land of the second open slot is used to be connected with the first spring base 1-6 sets
Groove is equipped with, the end of the first spring base 1-6 is placed in groove.
Thus, arranging groove by the bottom land in the second open slot, the end of the first spring base 1-6 is placed in groove,
It is easy to the first spring base 1-6 to be connected with second piston 1-5.
It should be noted that the first spring base 1- can be realized using other set-up modes according to actual use demand
Connection between 6 and second piston 1-5.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case of without departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (6)
1. a kind of plunger typed master cylinder, including master cylinder body, the first spring base, second spring seat, the first braking primary cup, the second system
Dynamic primary cup, braking secondary leather cup, the first spring and second spring, wherein the master cylinder body includes the first chamber and the second chamber, institute
It is be made up of the master cylinder body, the first braking primary cup, the braking secondary leather cup, first piston to state the first chamber
The region of relative closure, second chamber is be made up of the master cylinder body, the second braking primary cup, second piston
The region of individual relative closure；The master cylinder body is additionally provided with the first liquid mouth for being connected with first chamber and first logical
Road；The master cylinder body is additionally provided with the second liquid mouth and second channel being connected with second chamber, it is characterised in that institute
State first piston and be provided with the first open slot, the second piston is provided with the second open slot, the opening of first open slot
Chamfering is provided with the opening of second open slot；The inclined plane of the chamfering of first open slot is along near described the
The axis direction of one open slot is inclined, the axle of the second open slot described in the inclined plane along shoulder of the chamfering of second open slot
Line direction inclines；
The opening of first open slot can be connected with the first passage or mutually close；The opening of second open slot
Can be connected with the second channel or mutually close.
2. plunger typed master cylinder as claimed in claim 1, it is characterised in that first spring base and second open slot
Bottom land is connected towards the end face of the first piston, and first open slot is provided with the first connecting pole, first connection
The first end of post is connected with the bottom land of first open slot, and the second end of first connecting pole is located near described first
At the position of the opening of open slot, first spring base is connected with the second end of first connecting pole, first bullet
Spring stretches to the interior of first open slot and is sheathed on the outside of first connecting pole and first spring stretches to institute
The end and the bottom land of first open slot for stating the first open slot abuts against, and first spring is exposed to first opening
End on the outside of groove abuts against with first spring base；
First spring base can extend into first open slot and first spring base can be relative to described
One open slot is moved towards the bottom land direction closer or far from first open slot.
3. plunger typed master cylinder as claimed in claim 2, it is characterised in that the second spring seat is connected with the master cylinder body
Connect, second open slot is provided with the second connecting pole, the groove of the first end of second connecting pole and second open slot
Bottom is connected, and the second end of second connecting pole is located at the position of the opening of second open slot, and described second
Spring base is connected with the second end of second connecting pole, and the second spring stretches to the interior of second open slot and covers
Located at the outside of second connecting pole and the second spring stretches to the end of second open slot and described second and opens
The bottom land of mouth groove is abutted against, and the second spring is exposed to the end on the outside of second open slot with the second spring seat phase
Abut；
The second spring seat can extend into second open slot and the second spring seat can be relative to described
Two open slots are moved towards the bottom land direction closer or far from second open slot.
4. plunger typed master cylinder as claimed in claim 2, it is characterised in that the second end of first connecting pole is provided with connection
Lug boss, first spring base has a holding mouth, the connection of the holding mouth of first spring base and first connecting pole
Lug boss is abutted against or is separated.
5. plunger typed master cylinder as claimed in claim 3, it is characterised in that the second end of second connecting pole is provided with connection
Lug boss, the second spring seat tool has a holding mouth, the connection of the holding mouth of the second spring seat and second connecting pole
Lug boss is abutted against or is separated.
6. the plunger typed master cylinder as described in any one of claim 2 to 5, it is characterised in that the bottom land of second open slot is used
Arrange fluted in the end face being connected with first spring base, the end of first spring base is placed in the groove
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080472.3U CN206107226U (en) | 2016-09-26 | 2016-09-26 | Plunger type master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080472.3U CN206107226U (en) | 2016-09-26 | 2016-09-26 | Plunger type master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206107226U true CN206107226U (en) | 2017-04-19 |
Family
ID=58520906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621080472.3U Active CN206107226U (en) | 2016-09-26 | 2016-09-26 | Plunger type master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206107226U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379300A (en) * | 2016-09-26 | 2017-02-08 | 广西汽车集团有限公司 | Plunger type main cylinder |
| CN108799358A (en) * | 2018-08-30 | 2018-11-13 | 北汽福田汽车股份有限公司 | Clutch general pump and vehicle |
| WO2022205583A1 (en) * | 2021-03-31 | 2022-10-06 | 烟台杰瑞石油装备技术有限公司 | Plunger, hydraulic end and plunger pump |
-
2016
- 2016-09-26 CN CN201621080472.3U patent/CN206107226U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379300A (en) * | 2016-09-26 | 2017-02-08 | 广西汽车集团有限公司 | Plunger type main cylinder |
| CN108799358A (en) * | 2018-08-30 | 2018-11-13 | 北汽福田汽车股份有限公司 | Clutch general pump and vehicle |
| WO2022205583A1 (en) * | 2021-03-31 | 2022-10-06 | 烟台杰瑞石油装备技术有限公司 | Plunger, hydraulic end and plunger pump |
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