CN2105433U - Medium automobile brake controlling mechanism - Google Patents

Abstract

The utility model discloses a portable operating mechanism for parking braking actions, composed of a handle assembly, a pull-cord assembly and an automatic balance force component mechanism assembly. A handle is installed on the floor of the right side (or the left side) of a driver seat. The overall processes of various parking braking operations can be accomplish by a driver's one hand without turning the body. The mechanism has the advantages of large force moment of operating productivity, good braking effect and sensitive braking response. Moreover, when rear wheels brake, the braking force of left and right two rear wheels are equalized by the component force of automatic balance component force mechanisms. Thus, the braking safety is raised when emergency braking. The structure is simple, and the operation is light, comfortable and safe. The utility model is suitable for medium motor vehicles and light vehicles (including various reformed vehicles and modified vehicles).

Description

Medium automobile brake controlling mechanism

The utility model is relevant with vehicle braking control system, and is especially relevant with the braking during standstill control system.

Existing compact car is an example with 130 type automobiles, (comprise BJ130, LJ130, and with the various passenger vehicles of its chassis refit, lorry, cargo cab, modification of vehicle, special vehicle etc.).Employed Parking Brake steering unit (hereinafter to be referred as steering unit) comprises manipulating handgrip, the ratchet ratch that links to each other with handgrip, and its end has the lateral pin hole, and ratch is in sheath.Ratchet pull back spring and ratchet set pin are arranged in the sheath, and sheath is installed in the chaufeur right side.15 ° of angles hang down in a lateral deviation left side and the vehicle in the instrument carrier panel.Operation ratch lower end has one section steel cable to tie mutually with ratch, other end keying is on lever, pin-and-hole is arranged on the lever, brake steel cable one end keying on the lever pin-and-hole, the other end and brake wheel torque arm keying, steel cable is positioned at snakeskin hose, the snakeskin hose two ends are fixed on the vehicle frame, at the vehicle parking glancing impact, chaufeur must buttress bearing circle by left hand, and both feet are stepped on power-transfer clutch and service brake pedal respectively.The right hand of leaning to one side then to stretch out, the handgrip of catching braking during standstill to handle is carried on firmly, handles ratch and upwards slides past ratchet with handgrip, and ratchet has pull back spring to make the ratchet resilience, blocks ratch.Drive pull bar during the ratch motion, lever is moved, and, make steel cable produce strength and drive rocking arm, the Parking Brake braking by lever augmented.During brake off, chaufeur needs right crus of diaphragm to step on the foot brake brake pedal, leans to one side then to stretch out one's hand firmly will carry on the handle on hand, and with the handgrip half-twist, handle ratch and separate with ratchet, under of the tension force effect of wheel hub rocking arm at pull back spring, backguy and manipulation ratch self-return.Handle this parking and braking mechanism, working strength is big, and because the room is excessive in stroke, cause braking effect poor, and ratchet and ratchet lever cause the self-locking weak effect because active flank is little, and the ratchet load equates with braking force, the profile of tooth load is excessive, the engagement come off easily, and cause actuating force greater than 500N(JB41120-85) standard security poor, and, ratchet is subjected to the screen resilience of pull back spring, link to each other with ratch, be easy to make hair fastener, make the backguy return not smooth, add firmly inconvenience of chaufeur again, the braking force that manipulation is produced can not satisfy the braking during standstill requirement.If the vehicle off-position is on the ramp time, various factors such as ratchet and ratch slippage, braking force are not enough, be easy to cause traffic accident, meet accident with foot brake especially and lost efficacy when needing emergency braking shortcomings such as the inconvenience of outstanding more its brake operation and poor stability.

Another kind of Parking Brake steering unit is that Chinese utility model patent 89212845.3 discloses a kind of hand-held design ratchet steering unit, belongs to the lilliput car Parking and uses.This mechanism makes the braking force of this steering unit generation be subjected to the restriction of handle skirt material tensile strength, thereby can not satisfy the requirement of compact car braking during standstill with the form that adopts handle skirt section and backguy joint with pin hinge knot.

The utility model provides a kind of medium bus, lorry of being applicable to, and a kind of manipulation of each remoulded car and special purpose vehicle use is light, good braking effect, and braking force is big, the parking control that safety factor is high.The utility model has central braking during standstill formula and two kinds of schemes of trailing wheel wheel hub brake type.

The utility model first scheme is central braking during standstill formula, and it is installed on chaufeur right side (or left side), and on the floor, by the bar handle assembly, the backguy assembly constitutes, and adds additional guard shield that has decoration functions and Parking display lamp contactless switch is installed.Bar handle is made of adjustable bolt 16, backguy front tab 10, steel rope backguy 9, snakeskin hose 7, snakeskin hose front tab 6, rear tab 8, backguy pull back spring 15 by control button 1, handgrip 2, handle 3, ratchet 11, supporting tooth plate 5, back plate 4, backguy backplate 14, ratchet joystick pull back spring 12, form the backguy assembly with pull back spring space washer 13.(seeing accompanying drawing)

The utility model alternative plan is a trailing wheel wheel hub braking during standstill formula, and it is on the entire infrastructure of scheme one, has increased left and right sides backguy assembly and a brake-force balance divides force mechanisms.(seeing accompanying drawing 2).The braking force self-equalizing divides force mechanisms by guide roller 22, lead wheel seat 20, lead and wheel seat tangle with pin 21, there is tapped bore to be connected on the lead wheel seat 20 with central backguy rear tab 10, and can adjust its distance, backguy assembly in the left and right sides is by backguy (left side 23, right 24) and backguy snakeskin hose (left side 28, right 31) and rear tab thereof, and snakeskin hose 28,31 and backguy rear tab 35,34 rivetings knot are passed in (left side 25,27, right 30,32) backguy 23,24 respectively.In the backguy between snakeskin hose rear tab 27,32 and the bit line rear tab 35,34, be set with pull back spring 28,33, backguy 23,24 is in the metallic channel of guide roller 22.

The utility model embodiment: (scheme 1 central braking during standstill formula)

The utility model handgrip 2 and handle 3 sockets, 3 one-tenth r of handgrip 2 line of centerss and handle ° angle, button 1 is connected with 17 cast of ratchet joystick.Handle pull back spring 12 and be set in the joystick 17 with space washer 13, ratchet 11 tangles with joystick 17, and ratchet 11 is positioned at handlebar 3 and ties with shared rivet hinge, and supporting tooth plate 5 is hinged with rivet with handlebar, and cooperates with ratchet 11.Back plate 4 and handlebar riveting knot are arranged outside the handlebar 3, backguy backplate 14 and riveting knot are with it arranged on the back plate 4, be welded with carrying sleeve 18 on the back plate 4, it is fixing by backguy backplate 14 with the circular arc on the back plate 4 that guy bolt joint 16 passes carrying sleeve, and can adjust the length L of backguy 9 by nut, length L is decided according to vehicle and installation site.Have support holes and snakeskin hose front tab 6 fixing on the back plate, rear tab 8 is determined the installation site according to the vehicle needs, and snakeskin hose 7 is passed in backguy 9, draws rear tab 10 and the keying of brake shoe brake cheek rocking arm, and ties with backguy 9 rivetings.In the backguy 9 between backguy joint 10 and the flexible pipe rear tab 8, be with pull back spring 15.

When need use Parking Brake, the chaufeur right side (left side) holds handgrip 2 and upwards draws, handgrip 2 drives handle 3 and rotates (the angle between handgrip 2 and the handgrip 3 along certain radian, make under the situation that the handle corner increases, the operator also can arbitrarily implement actuating force), ratchet 11 slips over supporting tooth plate 5, on the flank of tooth simultaneously the carrying sleeve 18 on the back plate 4 drive backguy joints 6 and backguy 9 around back plate 4 and follow it closely and rotate certain radian, backguy 9 is slided in coiled pipe, driving backguy rear tab 10 moves, thereby backguy spurs the brake shoe brake cheek rocking arm in the central braking during standstill drum, makes brake shoe brake cheek produce enough tension force, reaches the braking during standstill effect, during brake off, touch the button 1 with thumb, button 1 drives joystick 17, handles ratchet 11 and breaks away from supporting tooth plate 5 profiles of tooth.Handlebar is return under the effect of arm.Backguy under the application force of pull back spring 9, rocking arm, backguy self-return, braking during standstill hoof and brake wheel break away from, brake off 1.

Scheme 2 embodiment:

The utility model alternative plan is a trailing wheel wheel hub brake type, bar handle is installed on the driver's seat right side (left side) side, handgrip 2 is set on the handle 3, the line of centers of handgrip 2 and handle 3 are r ° of angle, control button 1 is connected with the cast of ratchet joystick, and pull back spring 12 is set in the bar handle 3 with pull back spring space washer 13; Joystick 17 other ends and ratchet 11 usefulness pins tangle, and back plate 4 and riveting knot are with it arranged on ratchet 11 and handle 3 usefulness rivets hinge knot, the handle 3.Form the circular arc metallic channel between backguy backplate 14 and the back plate 4, backguy 9 is positioned at metallic channel and is blocked by the ear on the backguy backplate 14, back plate 4 is drawn from metallic channel and is passed snakeskin soft 7 in the wing position of handle 3 riveting knot, middle backguy 9, snakeskin hose front tab 6 is passed the rear foot through wires hole of tooth plate 5, and fix with nut, snakeskin hose rear end 8 usefulness clamps according to vehicle condition fixedly on the crossbeam or car sedan-chair base plate end.After central authorities' backguy 9 passes from snakeskin hose, tie with rear tab 10 rivetings.Rear tab is in lead wheel seat 20 central authorities, and tangles with it with pin 21.Brake pulling wire passes the metallic channel in the guide roller 22, two backguys 23,24 about being divided into, about two backguys penetrate respectively in the left and right sides snakeskin hose 28,31.Snakeskin hose 28,31 front tab 25,30 are fixed on the fixed support under vehicle crossbeam or the car sedan-chair base plate, rear tab 27,32, be fixed on the vehicle rear wheel braking flange, left and right sides backguy 23,24, pass snakeskin hose 8,31, once the position spring 33,28, the cover in the above, backguy 23,24 ends have rear tab 35,34, with brake shoe brake cheek rocking arm pin hinge.

When needs Parking or emergency braking, chaufeur holds upwards pulling of handgrip 2 with right (or left side), handle 3 beginnings are rotated along certain radian, angle between handgrip 2 and the handle makes handle under the situation that corner increases, and the operator also arbitrarily implements actuating force, ratchet 11 slips over supporting tooth plate 5, back plate 4 rotates along certain radian with carrying sleeve 18 drive backguy tieing 16 and central backguy on the back plate simultaneously, and central backguy 9 drives rear tab 10, the motion of snakeskin hose 7 restriction backguys 9.It can only be moved along a fixed line, rear tab 10 drives the equalizing gear assembly, 20,21, braking left and right sides backguy assembly 23 about 22,24, being balanced mechanism drives, guide roller in the equalizing gear equalizing gear rotates voluntarily, brake-force balance is allocated in left and right sides brake pulling wire, through snakeskin hose assembly 28,31, make the brake shoe brake cheek torque arm be braked backguy 23,24 rear tab 35,34 pullings, braking is formed contact with brake wheel friction stopping brake chaufeur relieving handgrip is taken place, ratchet 11 and supporting tooth plate engagement self-locking make handgrip return voluntarily, promptly finish the braking during standstill manipulation process.

The utility model is installed on the driver's seat right side (left side) side, makes chaufeur under the motionless situation of health, can finish the exercises of braking during standstill with the have gentle hands loose ground.Steering unit changes portable lever into and adopts many fulcrums component to make when handling, produce bigger operating torque, the actuating force lever ratio changes 5.4:1 into by original 2:1, actuating force satisfies≤national standard of 500N, maximum braking force 9000N, greater than the regulation (referring to the three type chassis remoulded car) of national standard 6000N, good braking effect is handled Parking Brake.Make vehicle be in braking mode, vehicle all can not be started to walk in a reverse gear, brakes on cement pavement.20 kilometers/hour of speed per hours, tyre skid length is less than 6m, 30 kilometers/hour of speed per hours, drag seal length less than 11m, vehicle is fully loaded parks in 20.79%(23 °) on the gradient (cement pavement), can stop the emergency situation lower-pilot Parking Brake that (GB 20%) lost efficacy at foot-operated brake easily.Vehicle is parked in gauged distance.

The following is the utility model accompanying drawing.

Fig. 1 is an overall construction drawing.

Fig. 2 is the balance component mechanism map of scheme two.

Claims (3)

1, a kind of compact car Parking Brake operating mechanism, by handle assembly, backguy assembly and self-equalizing divide force mechanisms to constitute, and are installed in driver's seat right side (or left side) and it is characterized by:

(1) handle is r ° of angle, have ratchet 11 to cooperate with the tooth plate profile of tooth in the handle 3, ratchet joystick 17 is set in the axle strength of handle 3 with action button 1, pull back spring 12 and space washer, and there are back plate 4 and positioning plate 14 in the outside of handle 3, supporting tube 15 is arranged on the back plate 4

(2) front tab 16 of brake pulling wire 9 is passed supporting tube 15, and the front tab 6 of flexible axle 6 flexible pipes 7 is fixed in the rear foot support holes of supporting tooth plate 5, and flexible axle flexible pipe 7 is passed in backguy 9 and rear tab 8 has joint 10 and pull back spring 18 at its end,

(3) backguy 9 divides force mechanisms to be connected by backguy rear end tieing 10 with self-equalizing, left and right sides backguy 23,24 divides in the metallic channel of the guide roller 21 in the force mechanisms around self-equalizing, left and right sides flexible pipe 28,31 is fixed on the vehicle frame, flexible axle flexible pipe 28,31 is passed in backguy 23,24, have backguy rear tab 35,34 in its terminal riveting, and in backguy 23,24, be with pull back spring.

2, self-equalizing as claimed in claim 1 divides force mechanisms, and it is characterized in that has tapped bore on the support 20, and there is the guide roller 22 of band metallic channel in mechanism's seat 20 central authorities, are articulated on mechanism's seat 20 with pin 21.

3, mechanism as claimed in claim 1, the profile of tooth that it is characterized in that supporting tooth plate 5 is a sector, and the fixedly support holes of the soft pre-sales end junction 6 of flexible axle is arranged on the tooth plate metapedes.

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