CN2361515Y

CN2361515Y - Safety brake apparatus for automotive vehicle

Info

Publication number: CN2361515Y
Application number: CN 99201671
Authority: CN
Inventors: 林小荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-26
Filing date: 1999-01-26
Publication date: 2000-02-02
Anticipated expiration: 2009-01-26

Abstract

The utility model relates to a safety brake apparatus for motor vehicles. The safety brake apparatus is appended on a chassis of a vehicle and is mainly connected with a cylinder body by an oil pump through an oil pipe. A movable piston rod is positioned in the cylinder body and is hinged with a brake block; two vibration-avoiding connecting rods are also hinged on the brake block. The oil pump is connected with a foot brake rod through a control rod. The device can make the brake block directly rubbed and contacted with ground when the motor vehicle urgently brakes; the brake power of the motor vehicle is increased. The motor vehicle can smoothly stop in the shortest time; the occurrence of accidents is decreased.

Description

The self-propelled vehicle braking safety device

The utility model relates to a kind of self-propelled vehicle braking safety device, is specially adapted to the emergency braking of automobile.

At present, the brake system of self-propelled vehicle mainly contains single-circuit braking system and split brake system, and their braking drive organ has fluid pressure type, vapour-pressure type etc.With the fluid pressure type braking drive organ is example, and it mainly is made of master cylinder, wheel cylinder and oil circuit, with drg self-propelled vehicle is produced braking.When chaufeur depressed brake pedal, the fluid in the master cylinder by oil pipe, was delivered to each wheel cylinder with certain pressure under the effect of piston, promote wheelcylinder piston, and force its promotion brake strap to compress brake wheel and make wheel stop to roll, thus abrupt deceleration vehicle.When running into very fast or other cause specifics of the speed of a motor vehicle and need stop immediately, because of brake equipment produces braking there is individual time difference, in addition, owing to effect of inertia, the wheel of stall still can slide a segment distance forward, still can cause traffic accident sometimes.

The purpose of this utility model provides a self-propelled vehicle braking safety device, and auxiliary original brake equipment strengthens braking effect, vehicle is stopped in a short period of time, the generation of minimizing accident.

In order to achieve the above object, the utility model has adopted an additional brake gear, and it is installed in the middle front part of motor-vehicle chassis; This brake gear mainly contains an oil pump and is connected with a cylinder body by oil pipe, the brake shoes of ining succession of the piston rod in the cylinder body, and the two shock-absorbing connecting rods that also are being hinged on the brake shoes, this oil pump is linked service brake bar below in the operator's compartment by control stalk.

For this brake gear is installed, between the cooresponding longeron of motor-vehicle chassis front wheel spindle, need add a fixed link, with stator bore; The other end of two shock-absorbing connecting rods is fixed on the front-axle beam of chassis.

Brake shoes is integral through bolted by a friction plate and the steel plate that links closely on it, and the friction plate leading section is the inclined-plane.

The utility model has the advantages that simple in structurely, all kinds of self-propelled vehiclees (particularly automobile) are reequiped a little, can both be suitable for; Particularly under the situation of need emergency brake, brake shoes is contacted immediately with ground friction, increase the self-propelled vehicle braking force, it be stopped, the generation of minimizing accident in the shortest time.Friction plate can be changed, and can remain good braking effect.

Be described further below in conjunction with drawings and Examples.

Fig. 1 is brake shoes and shock-absorbing connecting rod, piston rod, cylinder body connection diagram;

Fig. 2 is that the position of oil pump and control stalk and service brake bar concerns scheme drawing;

Fig. 3 is brake shoes installation site scheme drawing on the chassis;

Fig. 4 is a brake shoes structure cutaway view.

As Figure 1-3, the safety brake gear is attached on the motor-vehicle chassis, and it mainly forms braking drive organ by oil pump 9, oil pipe 1 and cylinder body 2, drives brake shoes 5 and plays braking action with ground friction.Oil pump 9 places on the chassis, connects to service brake bar 14 by control stalk 13, and individual setting nut 12 is arranged between control stalk 13 and the fuel pump push rod 11, the distance of scalable control stalk 13 and service brake bar 14, and an end of control stalk 13 is the groove shape, is used to accept service brake bar 14.16 of the cooresponding longerons of motor-vehicle chassis front wheel spindle, add a steel pole 17, oil pump 9 is communicated with cylinder body 2 by oil pipe 1, this cylinder body one end is fixed on (the C point among Fig. 3) on steel pole 17 mid points, the other end is hinged through piston rod 3 and brake shoes 5, the two shock-absorbing connecting rods 7 that also are being hinged on the brake shoes, their other end are fixed on the front-axle beam 15 of chassis (D among Fig. 3, E point).When service brake bar 14 moves down into a position, the original brake equipment work of self-propelled vehicle, the speed of a motor vehicle slows down; Stop when needs are anxious, make when stopping on the vehicle and horse, when continuing to step on service brake bar 14 to b downwards, service brake bar 14 push levers 13, push rod 11 make oil pump 9 produce thrust to cylinder body 2, and piston rod 3 is gone to the cylinder body extrapolation, piston rod 3 drives brake shoes 5 down to ground, produces friction drag; Otherwise after unclamping service brake bar 14, push rod 11 is return under the effect of spring 10, and hydraulic oil is got back to fluid storage compartment 8, and piston rod 3 also under the effect of spring 4, with brake shoes 5 pull-ups, is received under the chassis.

Brake shoes 5 in this device, as shown in Figure 4, form by rubber friction plate identical 19 and the steel plate 18 that links closely on it with the wheel material, both are tightened to one with a plurality of bolts 6, and the landing part is shaped on ripple, and friction plate 19 leading sections are the inclined-plane, when helping braking and ground closed contact, brake shoes is echelon form, and the bottom is play for two jiaos and stablized the vehicle body effect, prevents skid.

For the self-propelled vehicle that uses pneumatic brake, the oil pump in this brake gear should the corresponding air pump that changes into.

Claims

1, a kind of self-propelled vehicle braking safety device, be attached to the chassis middle front part, it has an oil pump (9) to be connected with a cylinder body (2) by oil pipe (1), it is characterized in that piston rod (3) in this cylinder body (2) brake shoes (5) that is being hinged, two shock-absorbing connecting rods (7) also are being hinged on the brake shoes (5); Push rod (11) in this oil pump (9) connects to service brake bar (14) by control stalk (13).

2, brake gear as claimed in claim 1 is characterized in that this brake shoes (5) is tightened to one by a friction plate (19) and the steel plate (18) that links closely on it through bolt (6), and friction plate (19) leading section is the inclined-plane.

3, brake gear as claimed in claim 2 is characterized in that this friction plate (19) landing part is shaped on ripple.

4, brake gear as claimed in claim 1 is characterized in that between fuel pump push rod (11) and the control stalk (13) setting nut (12) being arranged.