CN203005403U - Pneumatic control type assistant braking device for truck - Google Patents
Pneumatic control type assistant braking device for truck Download PDFInfo
- Publication number
- CN203005403U CN203005403U CN 201320014991 CN201320014991U CN203005403U CN 203005403 U CN203005403 U CN 203005403U CN 201320014991 CN201320014991 CN 201320014991 CN 201320014991 U CN201320014991 U CN 201320014991U CN 203005403 U CN203005403 U CN 203005403U
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- valve
- brake
- air
- extractor duct
- control type
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model discloses a pneumatic control type assistant braking device for a truck. A set of assistant braking control device parallelly connected with a main braking device of a truck is additionally added in a conventional pneumatic control type service braking system on the basis that the conventional truck structure is not changed. The pneumatic control type assistant braking device comprises a front air cylinder (5), a rear air cylinder (6), an assistant brake valve (8), a front bi-pass non-return valve (13), a rear bi-pass non-return valve (12) and an assistant braking air pressure pipeline. The pneumatic control type assistant braking device not only exerts no effect on the normal assembly of the conventional braking system components, but also improves the reliability of the finished truck braking system, and has the advantages of brief structure, convenience for disassembly and assembly, good safety, and strong operability.
Description
Technical field
The utility model relates to the brake system of car field, specifically the secondary brake equipment of truck Pneumatic control type.
Background technology
The running braking is the important component part of automobile, and its effect is car deceleration, the parking that makes in travelling, and makes the car speed of descent run keep stable, is the most important safe-guard system of automobile.especially for the truck of Lapie than parcel, need to take braking in the situation of running in driving, need in time take braking, need to increase for brake control device (secondary brake equipment) for truck, other vehicles also can install secondary brake equipment additional as required, the front and back wheel brake equipment of the major-minor brake equipment of automobile employing at present shares an air receiver, mostly be mechanically controlled type, be that secondary brake pedal is connected with the service brake pedal of automobile by rod member or bracing wire, the assistant driver seat personnel handle secondary brake pedal and carry out work through rod member or bracing wire control service brake pedal.This class formation is comparatively complicated, in case more seriously air receiver damages gas leakage, causes front and back wheel all can't brake.
The utility model content
The purpose of this utility model just is to provide a kind of truck Pneumatic control type automobile auxiliary brake device, with safety and the relatively poor problem of reliability that solves existing truck brake equipment.
The utility model purpose is achieved by the following technical programs:
The secondary brake equipment of truck Pneumatic control type; comprise by Air compressor, pressure regulating valve, oil water separator, four-loop protection valve, air receiver; the main brake device that main brake valve, rear wheel brake chamber, front-wheel brake chamber forms; it is characterized in that: described air receiver is two independently front air receiver and rear air receivers; they are connected with four-loop protection valve by pipeline respectively; a secondary brake activation valve is set, and it carries out following the connection with front and back air receiver and main brake device:
A. the cavity of resorption admission port of the cavity of resorption admission port of secondary brake activation valve and main brake valve is connected with the air extractor duct of front air receiver by tracheae respectively;
B. the epicoele admission port of the epicoele admission port of secondary brake activation valve and main brake valve is connected with the upper air extractor duct of rear air receiver by tracheae respectively;
C. the epicoele air extractor duct of the epicoele air extractor duct of main brake valve, secondary brake activation valve connects with a corresponding inlet end of rear double-way check valve by tracheae respectively, the outlet side of rear double-way check valve is connected with the enterprising gas port of relay and quick release valve, and the rear wheel brake chamber of the air extractor duct of relay and quick release valve and brake system is communicated with;
The cavity of resorption air extractor duct of the cavity of resorption air extractor duct of d, main brake valve, secondary brake activation valve connects by a corresponding inlet end of tracheae and front double-way check valve respectively, and the outlet side of front double-way check valve is connected with the front-wheel brake chamber by tracheae.
On the basis of above technical scheme, following further technical scheme can be arranged:
Described secondary brake activation valve is selected the series connection two-chamber brake activation valve.
Owing to having adopted technique scheme, make front and back wheel to brake respectively, guaranteed travel safety and reliability.Line stand deceleration and stopping performance check after testing, braking force, brake-force balance and brake coordination time are all consistent with former car owner's brake system; The moving service check of pathway trial-production, stopping distance, mean deceleration and insensitivity and former car owner's brake system indifference.
For more detailed explanation the utility model, following accompanying drawing provides a most preferred embodiment.
Description of drawings:
Fig. 1 is that structure of the present utility model forms schematic diagram.
The specific embodiment:
as shown in Figure 1, the secondary brake equipment of the truck Pneumatic control type that the utility model provides, mainly comprise the Air compressor 1 that connects successively, pressure regulating valve 2, oil water separator 3, four-loop protection valve 4 is connected, four-loop protection valve 4 connects respectively the admission port of front air receiver 5 and rear air receiver 6, the cavity of resorption admission port 16 of secondary brake activation valve 8 and the cavity of resorption admission port 21 of main brake valve 7 are connected by the air extractor duct of tracheae with front air receiver 5 respectively, the cavity of resorption air extractor duct 20 of main brake valve 7, the cavity of resorption air extractor duct 17 of secondary brake activation valve 8 connects with a corresponding inlet end of front double-way check valve 13 by tracheae respectively, the outlet side of front double-way check valve 13 is connected with front-wheel brake chamber 11 by tracheae, the epicoele admission port 14 of secondary brake activation valve 8 and the epicoele admission port 19 of main brake valve 7 are connected with the upper air extractor duct 22 of rear air receiver 6 by tracheae respectively, the epicoele air extractor duct 18 of main brake valve 7, the epicoele air extractor duct 15 of secondary brake activation valve 8 connects with a corresponding inlet end of rear double-way check valve 12 by tracheae respectively, the outlet side of rear double-way check valve 12 is connected with the enterprising gas port of relay and quick release valve 9, the lower air extractor duct of rear storage tank 6 is connected with the lower admission port of relay and quick release valve 9, the rear wheel brake chamber 10 of the air extractor duct of relay and quick release valve 9 and brake system is communicated with, secondary brake activation valve 8 is selected the series connection two-chamber brake activation valve.
Principle of work: a, the braking of main brake valve: when stepping on the pedal of main brake valve 7, the pressurized air of front air receiver 5 and rear air receiver 6 enters respectively the upper and lower chamber admission port 19,21 of main brake valve 7, from upper and lower chamber air extractor duct 18,20 outflows of main brake valve 7.The pressurized air that the cavity of resorption air extractor duct 20 of main brake valve 7 flows out enters front compressed air brake cylinder 11 through double-way check valve 13, makes front wheel brake; The pressurized air that the epicoele air extractor duct 18 of main brake valve 7 flows out enters trailing wheel compressed air brake cylinder 10 through double-way check valve 12 and relay and quick release valve 9, makes the trailing wheel braking.When loosening main brake valve 7 pedal, the pressurized air in rear compressed air brake cylinder 10 enters atmosphere through rapid release valve 9 exhausr ports respectively; In brake circuit pressurized air is respectively through double- way check valve 12,13, enters atmosphere, brake off by former approach from the exhausr port of main brake valve 7.
B, the braking of secondary brake activation valve: when stepping on secondary brake activation valve 8 pedal, the pressurized air in front air receiver 5 and rear air receiver 6 enters respectively the upper and lower chamber admission port 14,16 of secondary brake activation valve 8, from upper and lower chamber air extractor duct 15,17 outflows of secondary brake activation valve 15.The pressurized air that the cavity of resorption air extractor duct 17 of secondary brake activation valve 8 flows out enters front compressed air brake cylinder 11 through double-way check valve 13, makes front wheel brake; The pressurized air that the epicoele air extractor duct 15 of secondary brake activation valve 8 flows out enters trailing wheel compressed air brake cylinder 10 through double-way check valve 12 and relay and quick release valve 9, makes the trailing wheel braking.When loosening secondary brake activation valve 8 pedal, the pressurized air in rear compressed air brake cylinder 10, the exhausr port of the fast relay and quick release valve 9 of warp enters atmosphere; In brake circuit pressurized air is respectively through double- way check valve 12,13, enters atmosphere, brake off by former approach from the exhausr port of secondary brake activation valve 8.
C, when major and minor brake activation valve 7,8 pedal are all stepped on, usually first step on or brake activation valve that pedal stroke is large works, pressurized air is through double-way check valve 13, and double-way check valve 12, relay and quick release valve 9, enter respectively front and rear wheel compressed air brake cylinder 11,10, produce braking.The working process of brake off is identical with the process of main brake valve 7 or secondary brake activation valve 8 independent roles.Only have when major and minor brake pedal all lifts, braking could be removed.
Claims (2)
1. the secondary brake equipment of truck Pneumatic control type; comprise the main brake device that is formed by Air compressor (1), pressure regulating valve (2), oil water separator (3), four-loop protection valve (4), air receiver, main brake valve (7), rear wheel brake chamber (10), front-wheel brake chamber (11); it is characterized in that: described air receiver is two independently front air receiver (5) and rear air receivers (6); they are connected with four-loop protection valve (4) by pipeline respectively; a secondary brake activation valve (8) is set, and it carries out following the connection with front and back air receiver and main brake device:
A. the cavity of resorption admission port (21) of the cavity of resorption admission port (16) of secondary brake activation valve (8) and main brake valve (7) is connected by the air extractor duct of tracheae with front air receiver (5) respectively;
B. the epicoele admission port (19) of the epicoele admission port (14) of secondary brake activation valve (8) and main brake valve (7) is connected with the upper air extractor duct (22) of rear air receiver (6) by tracheae respectively;
C. the epicoele air extractor duct (15) of the epicoele air extractor duct (18) of main brake valve (7), secondary brake activation valve (8) connects with a corresponding inlet end of rear double-way check valve (12) by tracheae respectively, the outlet side of rear double-way check valve (12) is connected with the enterprising gas port of relay and quick release valve (9), and the air extractor duct of relay and quick release valve (9) is communicated with the rear wheel brake chamber (10) of brake system;
The cavity of resorption air extractor duct (17) of the cavity of resorption air extractor duct (20) of d, main brake valve (7), secondary brake activation valve (8) connects with a corresponding inlet end of front double-way check valve (13) by tracheae respectively, and the outlet side of front double-way check valve (13) is connected with front-wheel brake chamber (11) by tracheae.
2. the secondary brake equipment of truck Pneumatic control type according to claim 1, it is characterized in that: described secondary brake activation valve (8) is selected the series connection two-chamber brake activation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014991 CN203005403U (en) | 2013-01-12 | 2013-01-12 | Pneumatic control type assistant braking device for truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014991 CN203005403U (en) | 2013-01-12 | 2013-01-12 | Pneumatic control type assistant braking device for truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203005403U true CN203005403U (en) | 2013-06-19 |
Family
ID=48597026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320014991 Expired - Fee Related CN203005403U (en) | 2013-01-12 | 2013-01-12 | Pneumatic control type assistant braking device for truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203005403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057536A (en) * | 2013-01-12 | 2013-04-24 | 徐晟伟 | Vehicular auxiliary air pressure braking device |
| CN110103917A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two based on stacked unidirectional valve and linear exhaust solenoid valve, which drive electric vehicle brake power, recycles gas circuit |
-
2013
- 2013-01-12 CN CN 201320014991 patent/CN203005403U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057536A (en) * | 2013-01-12 | 2013-04-24 | 徐晟伟 | Vehicular auxiliary air pressure braking device |
| CN110103917A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two based on stacked unidirectional valve and linear exhaust solenoid valve, which drive electric vehicle brake power, recycles gas circuit |
| CN110103917B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Two-wheel-drive electric vehicle braking energy recovery gas circuit based on stacked one-way valve and linear exhaust electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160112 |