CN2227056Y - Brake power-assistance device for "Auto" vehicle - Google Patents
Brake power-assistance device for "Auto" vehicle Download PDFInfo
- Publication number
- CN2227056Y CN2227056Y CN95212718U CN95212718U CN2227056Y CN 2227056 Y CN2227056 Y CN 2227056Y CN 95212718 U CN95212718 U CN 95212718U CN 95212718 U CN95212718 U CN 95212718U CN 2227056 Y CN2227056 Y CN 2227056Y
- Authority
- CN
- China
- Prior art keywords
- vacuum chamber
- brake
- push rod
- saving device
- support push
- 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
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- Valves And Accessory Devices For Braking Systems (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates to a brake power-assistance device for an Auto vehicle. The utility model has a rigid vacuum chamber which can be connected to the control part of a brake master pump and is connected with the engine through the gas extraction tube with a one-way valve. A support top rod is installed in the vacuum chamber along the axle. One end of the support top rod is connected with the connecting frame of a brake pedal, and the other end of the support top rod is used for pressing the piston pressing part of a brake master pump. A reset spring mechanism is installed to match with the support top rod.
Description
The utility model relates to the brake work-saving device that is used for the Alto C-class.
Braking mechanism is an epochmaking system in the self-propelled vehicle.For guaranteeing the effectively sensitive of drag, except that the factor of the structural principle of braking mechanism own, the effort degree during the navigating mate footbrake, sensitivity level and braking timeliness, the stopping distance handled with brake also have direct relation.What the braking mechanism in the present Alto car adopted is directly to press the piston that touches in the master cylinder to realize by brake pedal through link span, chaufeur is often felt brake " firmly ", trample effort, thereby brake response is slower, braking distance is longer, is a hidden danger in the driving.
The purpose of this utility model is to provide a kind of brake work-saving device that is used for the Alto car at above-mentioned situation.
Brake work-saving device of the present utility model has a rigidity vacuum chamber that can be connected in the master cylinder manipulatable end, and by having check valve, and preferably has two single-valve bleed lines and driving engine links.Test shows that two check valves can more effectively prevent to leak gas and keep negative pressure state in the vacuum chamber.Be provided with one vertically and support push rod in this vacuum chamber, the one end connects with the brake pedal link span, and the other end can press the piston that touches master cylinder to press end.With support push rod and match and also be provided with the Flexible Reset structure.This Flexible Reset structure can be arranged within this vacuum chamber or outside it, but to be located in the vacuum chamber to well; Elastic construction can be the member of compression-type or tension type spring or other appropriate form.After being provided with the device of said structure form between brake pedal and master cylinder, because the vacuum negative pressure condition that keeps in this vacuum chamber, can reduce the strength of chaufeur footbrake pedal greatly, thereby shortened the time of trampling, improved the sensitieness of drag, can shorten stopping distance greatly, improve safety.Loosen stretcher, the Flexible Reset structure can make the support push rod reset the brake off state.Shown in the following table is that every performance figure all meet the regulation of GB7258-87 self-propelled vehicle safe in operation engineering factor through the deceleration and stopping performance comparison and detection result of Sichuan Province's vehicle product quality supervision detecting test station to the Alto Che Suozuo that do not installed and installed the above-mentioned work-saving device of the utility model.
| Speed of a motor vehicle km/h | Be unkitted servo-unit | The dress servo-unit | ||
| Stopping distance (m) | Treadle effort (N) | Stopping distance (m) | Treadle effort (N) | |
| 30 | 7.0 | 486 | 6.2 | 351 |
| 50 | 17.4 | 15.8 | ||
| 65 | 28.5 | 27.0 | ||
Below specify structure of the present utility model, but scope of the present utility model is not limited only to this example with example shown in the drawings.
Fig. 1 constructional drawing of the present utility model
As figure, this Alto car brake work-saving device has a rigidity vacuum chamber 4 that can be connected in master cylinder 3 manipulatable ends, and it is linked with automotive engine by the bleed line 1 that is provided with two check valves 9 and 2.Be provided with one vertically and support push rod 5 in this vacuum chamber 4, the one end connects with brake pedal link span 6, and the other end can press the piston that is positioned at master cylinder 3 and press end.Be connected with a pressing plate 8 on the strut bar section in vacuum chamber, and match with the Flexible Reset structure 7 that is placed on support push rod compression type springs part form on every side through this pressing plate.
Claims (4)
1, the automobile-used brake work-saving device in a kind of Alto, it is characterized in that having a rigidity vacuum chamber (4) that can be connected in master cylinder (3) manipulatable end, and link by the bleed line that has check valve (1) and driving engine, in this vacuum chamber (4), be provided with one vertically and support push rod (5), the one end connects with brake pedal link span (6), the other end can press the piston that touches master cylinder to press end, and matching with support push rod (5) also is provided with Flexible Reset structure (7).
2, brake work-saving device as claimed in claim 1 is characterized in that being provided with in the said bleed line (1) two check valves (2,9).
3,, it is characterized in that said Flexible Reset structure (7) is for being placed on support push rod (5) the compression type springs member on every side in this vacuum chamber (4) as the brake work-saving device of claim 1 or 2.
4, brake work-saving device as claimed in claim 3 is characterized in that cooperatively interacting to be connected in the pressing plate (8) that supports on the push rod (5) between said support push rod (5) and Flexible Reset structure (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95212718U CN2227056Y (en) | 1995-09-20 | 1995-09-20 | Brake power-assistance device for "Auto" vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95212718U CN2227056Y (en) | 1995-09-20 | 1995-09-20 | Brake power-assistance device for "Auto" vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227056Y true CN2227056Y (en) | 1996-05-15 |
Family
ID=33862823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95212718U Expired - Fee Related CN2227056Y (en) | 1995-09-20 | 1995-09-20 | Brake power-assistance device for "Auto" vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227056Y (en) |
-
1995
- 1995-09-20 CN CN95212718U patent/CN2227056Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |