CN206797362U - A kind of first piston member fitting structure for improving center valve type master cylinder braking ability - Google Patents
A kind of first piston member fitting structure for improving center valve type master cylinder braking ability Download PDFInfo
- Publication number
- CN206797362U CN206797362U CN201720599529.9U CN201720599529U CN206797362U CN 206797362 U CN206797362 U CN 206797362U CN 201720599529 U CN201720599529 U CN 201720599529U CN 206797362 U CN206797362 U CN 206797362U
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- China
- Prior art keywords
- ring
- master cylinder
- control pin
- piston part
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Hydraulic Control Valves For Brake Systems (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
A kind of first piston member fitting structure for improving center valve type master cylinder braking ability is the utility model is related to, belongs to mechanical field, refers in particular to a kind of brake system of car master cylinder.First piston part is arranged in Master cylinder body, first control pin is worn with the control pin-and-hole on first piston part and connect, the first control pin both ends inwall apical grafting with Master cylinder body respectively, back-up ring is mounted with successively between first piston part and Master cylinder body, secondary leather cup, spacing ring, back-up ring is socketed on first piston part, back-up ring crimps with the first control pin, dish-shaped reed is between back-up ring and Master cylinder body, secondary leather cup is socketed with first piston part, and crimped with back-up ring, spacing ring is socketed with first piston part, and crimped respectively with secondary leather cup and back-up ring, O-ring seal is located at back-up ring, spacing ring, between Master cylinder body, the position apical grafting of center valve element and the first control pin among control pin-and-hole in first piston part, it is dowel hole to control pin-and-hole, keyway guiding structure one is provided with control pin-and-hole, oil guide structure, keyway guiding structure two.
Description
Technical field
The utility model belongs to mechanical field, refers in particular to a kind of brake system of car master cylinder.
Background technology
Master cylinder is the critical component in brake system of car, and its major function is to convert the power of booster input
For the hydraulic pressure required for automobile brake, ensure the reliability that automobile is braked in braking procedure is travelled.Center valve type master cylinder conduct
A kind of widely used master cylinder, compared to compensation cellular type master cylinder, there is the characteristics of can matching abs braking system.Meanwhile
Because leather cup will not damage easily without Master cylinder body cross-drilled hole, leather cup in the course of work, the service life of master cylinder is improved.With
User improves constantly to vehicle brake request, and the brake once in a while occurred in vehicle travel process for center valve type master cylinder is without system
Emotionally condition, user are very discontented.
Traditional center valve type brake master cylinder assy parts include：Master cylinder body, former first piston part（First piston,
One piston spring, spring retainer seat, spring retainer bar, the first spring base, small washer, center valve element, valve part, centre valve
Spring, primary cup）, second piston part（Second piston, second piston spring, second spring seat, center valve element, valve part, in
Heart valve spring, primary cup, the second secondary leather cup）, secondary leather cup, spacing ring, back-up ring, check ring, dish-shaped reed, the first control pin,
The parts such as two control pins, which form, circular control pin-and-hole 101' on the first piston part 1' of its Central Plains, as shown in Figure 6.Work as automobile
During braking, driver steps on pedal, after pedal force is amplified by pedal and booster, promotes first piston to travel forward, the first control
Cotter is travelled forward with first piston, and departing from the limitation of back-up ring, center valve element is lived under the promotion of center valve spring, with respect to first
Plug move backward, valve port gap is gradually decrease to close, and the first working chamber is isolated with the first feed flow chamber, first piston continue to
Preceding motion, the first working chamber produce pressure, driven wheel cylinder working, and wheel produces braking.But when the automobile of traveling is frequently braked,
The repeating motion in piston due to the first control pin, cause control pin to coordinate with the control pin-and-hole on piston and go wrong, control
Cotter is stuck in pin-and-hole, a pin brakeless phenomenon once in a while, brake fade occurs.When running car, easily knock into the back, collide
Deng traffic accident, the safety of serious threat to life property.
The content of the invention
The utility model provides a kind of first piston member fitting structure for improving center valve type master cylinder braking ability, with solution
Certainly Traditional center valve type master cylinder, when automobile is frequently braked, there is control pin and be stuck in pin-and-hole, cause asking for brake fade
Topic.
The technical solution of the utility model is：First piston part is arranged in Master cylinder body, and the first control pin and first is lived
Control pin-and-hole in plunger member, which is worn, to be connect, the first control pin both ends inwall apical grafting with Master cylinder body respectively, first piston part and master
Back-up ring, secondary leather cup, spacing ring are mounted between cylinder body successively, back-up ring is socketed on first piston part, back-up ring and the first control
Pin crimping, between back-up ring and Master cylinder body, secondary leather cup is socketed dish-shaped reed with first piston part, and is crimped with back-up ring, is limited
Position ring is socketed with first piston part, and is crimped respectively with secondary leather cup and back-up ring, and O-ring seal is located at back-up ring, spacing ring, master cylinder
Between body, the position apical grafting of center valve element and the first control pin among control pin-and-hole in first piston part, control pin
Hole is dowel hole, controls in pin-and-hole and is provided with keyway guiding structure one, oil guide structure, keyway guiding structure two.
The utility model has the advantage of：Structure is novel simple, and processing technology is easily realized, controls the keyway guiding of pin-and-hole
Structure is oriented to the first control pin, and oil guiding hole enables brake fluid to enter and builds pressure chamber as the flow channel of brake fluid, right
Piston controls the change of pin-and-hole structure, control pin, with closing more rationally, is not in the situation that control pin blocks, is kept away with pin-and-hole
The phenomenon of a pin brakeless in braking procedure is exempted from, suitable for most of center valve type master cylinder.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the control pin-and-hole of the utility model first piston part；
The A that Fig. 3 is Fig. 2 cuts open enlarged drawing；
Fig. 4 is the position relationship schematic diagram of the utility model center valve element and the first control pin；
Fig. 5 is the structural representation of the utility model control pin-and-hole；
Fig. 6 is the structural representation that pin-and-hole is controlled in background technology；
In figure, first piston part 1, the first control pin 2, dish-shaped reed 3, back-up ring 4, O-ring seal 5, secondary leather cup 6, limit
Position ring 7, Master cylinder body 8, control pin-and-hole 101, center valve element 102, keyway guiding structure 1, oil guiding hole 10102, keyway are led
To structure 2 10103, former first piston part 1', circular control pin-and-hole 101'.
Embodiment
First piston part 1 is arranged in Master cylinder body 8, the first control pin 2 and the control pin-and-hole on first piston part 1
101 wear and connect, the both ends of the first control pin 2 inwall apical grafting with Master cylinder body 8 respectively, between first piston part 1 and Master cylinder body 8 successively
Back-up ring 4, secondary leather cup 6, spacing ring 7 are mounted with, back-up ring 4 is socketed on first piston part 1, and back-up ring 4 is pressed with the first control pin 2
Connecing, between back-up ring 4 and Master cylinder body 8, secondary leather cup 6 is socketed dish-shaped reed 3 with first piston part 1, and is crimped with back-up ring 4,
Spacing ring 7 is socketed with first piston part 1, and is crimped respectively with secondary leather cup 6 and back-up ring 4, and O-ring seal 5 is located at back-up ring 4, limit
Between position ring 7, Master cylinder body 8, the control pin 2 of center valve element 102 and first in first piston part 1 is in control pin-and-hole 101
Between connect positioned at top set, control pin-and-hole 101 is dowel hole, controls and is provided with keyway guiding structure 1 in pin-and-hole 101, leads
Oily structure 10102, keyway guiding structure 2 10103.
Claims (1)
- A kind of 1. first piston member fitting structure for improving center valve type master cylinder braking ability, it is characterised in that：First piston Part is arranged in Master cylinder body, and the first control pin is worn with the control pin-and-hole on first piston part and connect, the first control pin both ends point Not with the inwall apical grafting of Master cylinder body, back-up ring, secondary leather cup, spacing ring are mounted between first piston part and Master cylinder body successively, is kept off Snare is connected on first piston part, and back-up ring crimps with the first control pin, and dish-shaped reed is between back-up ring and Master cylinder body, secondary skin Bowl is socketed with first piston part, and crimp with back-up ring, spacing ring and the socket of first piston part, and respectively with secondary leather cup and gear Circle crimping, O-ring seal is between back-up ring, spacing ring, Master cylinder body, center valve element and the first control in first piston part Pins position in control pin-and-hole among position apical grafting, it is dowel hole control pin-and-hole, control pin-and-hole in be provided with keyway guiding structure one, Oil guide structure, keyway guiding structure two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599529.9U CN206797362U (en) | 2017-05-26 | 2017-05-26 | A kind of first piston member fitting structure for improving center valve type master cylinder braking ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599529.9U CN206797362U (en) | 2017-05-26 | 2017-05-26 | A kind of first piston member fitting structure for improving center valve type master cylinder braking ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206797362U true CN206797362U (en) | 2017-12-26 |
Family
ID=60741943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720599529.9U Expired - Fee Related CN206797362U (en) | 2017-05-26 | 2017-05-26 | A kind of first piston member fitting structure for improving center valve type master cylinder braking ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206797362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009241A (en) * | 2022-06-30 | 2022-09-06 | 中汽创智科技有限公司 | Pressure control unit and braking system |
-
2017
- 2017-05-26 CN CN201720599529.9U patent/CN206797362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009241A (en) * | 2022-06-30 | 2022-09-06 | 中汽创智科技有限公司 | Pressure control unit and braking system |
| CN115009241B (en) * | 2022-06-30 | 2024-03-01 | 中汽创智科技有限公司 | Pressure control unit and braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 |