CN2350261Y - Back-up emergency brake device - Google Patents
Back-up emergency brake device Download PDFInfo
- Publication number
- CN2350261Y CN2350261Y CN 98244759 CN98244759U CN2350261Y CN 2350261 Y CN2350261 Y CN 2350261Y CN 98244759 CN98244759 CN 98244759 CN 98244759 U CN98244759 U CN 98244759U CN 2350261 Y CN2350261 Y CN 2350261Y
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- CN
- China
- Prior art keywords
- braking
- brake
- shoes
- hub
- friction
- 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
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Abstract
The utility model relates to a back-up emergency brake device which solves the problem that the existing automobiles are provided with the back-up emergency brake device. The utility model is characterized in that pistons at both ends of a braking branch pump 11 in a brake hub are connected with the two end heads of two brake shoe iron 3 of which the other two end heads are connected with the pistons at the both ends of a braking branch pump 10, and thus, a closing friction device which can perform friction braking with the brake hub. A bottom board 2 is provided with four fixing limited blocks 4 and 12 which can be served as supporting points, and ribbed slabs of the two brake shoe iron 3 are provided with four limited blocks 5 and 13 which are mutually acted with the fixing limited blocks 4 or 12. After emergency brake is taken, rear wheels are braked and the accident of the overturn of the automobile can be avoided.
Description
The utility model belongs to the vehicle braking device class, and what be specifically related to is a kind of reserve emergency brake device that is used for automobile.
At present, the brake equipment of known automobile is the brake equipment of handling by stretcher, mainly by braking footrest, push rod, oil pipe be installed in the automotive brake hub braking shoes on the chassis, friction lining, the retracing spring on the shoes and form, traveling automobile needs the brake glancing impact, chaufeur is stepped on braking footrest, and stop mechanism promotes the braking shoes palm, makes the friction lining of rivet clasp on shoes and braking hub produce drag friction power, check automobile front and back wheel, realize automobile brake.
The shoes of existing automobile treadle brake equipment is by the hinge hole of an end, is installed on the shoe sole with pivot pin.And the braking shoes of brake equipment and the drag friction of braking hub mainly are with vacuum fluid subsidy power or air pressure fluid subsidy power drive wheel cylinder or cam, make wheel cylinder or cam promote the braking shoes and expand outwardly realization friction lining and the friction braking of braking hub.Above-mentioned said pedal brake device is not provided with reserve emergency brake mechanism, and after pedal brake was malfunctioning, automobile just disturbing accident might take place.
The purpose of this utility model for solving the problem that existing automobile treadle brake equipment does not have the reserve emergency brake, has designed a kind of reserve emergency brake device exactly.
Reserve emergency brake device of the present utility model, the braking shoes, the friction lining on the shoes, the retracing spring that include brake operation mechanism, push rod, oil pipe, the brake cylinder that is located at operator's compartment and be installed on the automotive brake hub tank top plate are formed, it is characterized in that the two ends piston of setting up the brake cylinder 11 in the braking hub is connected with the two ends of one group of braking shoes 3, the two ends in addition of braking shoes 3 is connected with the two ends piston of brake cylinder 10, constitutes the closed friction gear with braking hub friction braking; The shoe sole 2 that braking shoes 3 is installed be provided with four gussets as the fixed limit piece 4 of the strong point and 12, two braking shoes 3 be provided with four respectively with fixed limit piece 4 or 12 interactional limiting stoppers 5 and 13.
Cover reserve brake operation mechanism and a former brake pedal 6 of setting up at operator's compartment passes through control brake system of bindiny mechanism separately respectively.The automobile of cruising needs glancing impact, step on former braking footrest 6, push rod promotes total brake pump and pressurizes to braking liquid, the wheel cylinder 10 that braking liquid after the pressurization drives by oil pipe on the braking shoes that is connected in the former brake system promotes the shoes expansion, braking shoes simultaneously is rotating shaft with two fasteners 14 respectively, two limiting stoppers 5 are the strong point and 1 drag friction of braking hub with two the fixed limit pieces 4 that are provided with on the shoe sole 2, make the automobile front and back wheel realize friction braking simultaneously.
The path of motion of automobile back wheel friction braking is: the limiting stopper 5 of two braking shoes lower ends cooperates with two fixed limit pieces 4 as the strong point of shoe sole 2 lower ends respectively, and be the center of circle with fixed limit piece 4 respectively, the distance of putting the center of circle with two braking shoes terminations and wheel cylinder 10 two ends piston hinge is a radius, fastener 14 with fixing braking shoes is rotating shaft, makes the arc fricting movement that expands outwardly.When the two ends piston of the wheel cylinder 10 in the automobile back wheel braking hub under the effect of the pressure of braking liquid outwards during motion, the two ends piston promotes respectively with it that pivotally attached braking shoes produces friction braking with the braking hub; Behind the brake system failure of former braking footrest 6 controls, pilot control reserve brake operation mechanism, the push rod of steering unit promotes the total brake pump 9 in the reserve brake system, give the reserve emergency brake wheel cylinder that is located on the automobile back wheel 11 pressurizations, the two ends piston of wheel cylinder 11 promotes the braking shoes and expands outwardly, the limiting stopper 13 of two braking shoes upper ends cooperates with two fixed limit pieces 12 as the strong point of shoe sole 2 upper ends respectively simultaneously, and be rotating shaft with the fixing fastener 14 of braking shoes respectively, the arc fricting movement that work expands outwardly, forced brake shoes and 1 friction of braking hub are realized the reserve emergency brake of automobile back wheel.
The utility model is compared with existing brake system of car, has cancelled the linkwork of shoe sole 2 with the braking shoes, and the braking shoes is captiveed joint by fastener 14 with shoe sole 2.Set up a brake cylinder 11 in the position of former linkwork, brake cylinder 11 is realized the emergent safety arrestment of reserve by the reserve emergency brake device of the pedal brake bindiny mechanism Control of Automobile newly established, has prevented the automobile disturbing accident.Reached design goal.
Be further described in conjunction with the accompanying drawings:
Fig. 1 is the installation main structure scheme drawing of this reserve emergency brake device in the braking hub;
Fig. 2 is that structural representation cuts open in the office of overlooking of Fig. 1;
Fig. 3 is the work scheme drawing of the brake system of car behind installation the utility model.
In conjunction with Fig. 1, Fig. 2, Fig. 3, when implementing the technical program, can set up a cover braking footrest 7, braking footrest at operator's compartment and be connected with that push rod 8, push rod 8 other ends connect the total oil pump 9 of braking, total oil pump 9 delivery ports of braking are connected by the brake cylinder of setting up in connecting brake pipe and automobile back wheel being braked hub 11 for 7 times; Also can be provided with one and overlap manual control mechanism, be connected by the brake cylinder of setting up in connection brake pipe and the automobile back wheel braking hub 11 by the total oil pump 9 of joystick connection braking, total oil pump 9 delivery ports of braking that connect manual control mechanism at operator's compartment.Four the fixed limit pieces and the shoe sole 2 that are provided with on the shoe sole 2 of braking shoes are installed are fabricated to one, when one group of fixed limit piece 4 during, can actv. protection emergency brake wheel cylinder 11 be braked shoes and squeeze bad with the friction brake force of braking hub as the braking strong point of the original brake system of stretcher 6 control; Work as end of braking, during retracing spring 15 resiliences, fixed limit piece 12 can be used as the braking shoes limiting stopper that resets, and is not squeezed bad with protection brake cylinder 10.Behind stretcher 6 bonded assembly brake system failures, when chaufeur is stepped on stretcher 7 (stretcher 7 is provided in a side of a kind of embodiment of the reserve emergency brake steering unit of operator's compartment), the friction force that the braking shoes and the strong point of braking the hub friction braking when another organizes fixed limit piece 12 with regard to emergency brake in support, while fixed limit piece 12 also can protect brake cylinder 10 not to be braked shoes and braking hub squeezes bad; When the reserve emergency brake device resetted, the screen resilience that fixed limit piece 4 also can limit retracing spring 16 squeezed bad brake cylinder 11.
Automobile is when cruising, without the reserve emergency brake device.Usual stretcher 6 is handled and during the control brake device, and the braking shoes has has only worn and torn fastener 14 as rotating shaft to the friction lining that connects between the brake cylinder 10, and does not does not wear and tear substantially as fastener 14 to the friction lining between the connection brake cylinder 11 of rotating shaft.When carrying out the reserve emergency brake, running car is at clutch often, for example, after the brake equipment that stretcher 6 is handled and controlled is malfunctioning, driver's operation reserve brake operation mechanism, for example chaufeur is stepped on the stretcher 7 of brake operation mechanism in support, and push rod 8 promotes total oil pump 9 pressurizations of braking, high hydraulic brake fluid is expanded by the two ends piston that oil pipe 17 controls are located at the brake cylinder 11 on the closed friction gear, implements emergency brake.When implementing urgent emergency brake, the reserve emergency brake device is only effective to the braking of automobile back wheel, because fastener 14 to the friction lining that connects between the brake cylinder 11 as rotating shaft does not does not wear and tear substantially at ordinary times, so friction lining has stronger friction braking ability, but actv. prevents the automobile disturbing accident, has positive safety traffic effect.
Claims (1)
- A kind of reserve emergency brake device, the braking shoes, the friction lining on the shoes, the retracing spring that include brake operation mechanism, push rod, oil pipe, the brake cylinder that is located at operator's compartment and be installed on the automotive brake hub tank top plate are formed, it is characterized in that the two ends piston of setting up the brake cylinder 11 in the braking hub is connected with the two ends of one group of braking shoes 3, the two ends in addition of braking shoes 3 is connected with the two ends piston of brake cylinder 10, constitutes the closed friction gear with braking hub friction braking; The shoe sole 2 that braking shoes 3 is installed be provided with four gussets as the fixed limit piece 4 of the strong point and 12, two braking shoes 3 be provided with four respectively with fixed limit piece 4 or 12 interactional limiting stoppers 5 and 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244759 CN2350261Y (en) | 1998-10-12 | 1998-10-12 | Back-up emergency brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98244759 CN2350261Y (en) | 1998-10-12 | 1998-10-12 | Back-up emergency brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2350261Y true CN2350261Y (en) | 1999-11-24 |
Family
ID=33990759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98244759 Expired - Fee Related CN2350261Y (en) | 1998-10-12 | 1998-10-12 | Back-up emergency brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2350261Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740744A (en) * | 2017-01-19 | 2017-05-31 | 甘振输 | Trailer brake system assembly |
| CN109160406A (en) * | 2018-10-25 | 2019-01-08 | 陈建平 | The anti-slip dynamic device of the leveling of cabin elevator |
| CN111188853A (en) * | 2020-03-05 | 2020-05-22 | 涡阳县安元汽车配件有限公司 | Automobile brake device |
-
1998
- 1998-10-12 CN CN 98244759 patent/CN2350261Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740744A (en) * | 2017-01-19 | 2017-05-31 | 甘振输 | Trailer brake system assembly |
| CN109160406A (en) * | 2018-10-25 | 2019-01-08 | 陈建平 | The anti-slip dynamic device of the leveling of cabin elevator |
| CN111188853A (en) * | 2020-03-05 | 2020-05-22 | 涡阳县安元汽车配件有限公司 | Automobile brake device |
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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 |