CN2228029Y

CN2228029Y - Anti-backrunning device for vehicle

Info

Publication number: CN2228029Y
Application number: CN 95241625
Authority: CN
Inventors: 薛清平
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-19
Filing date: 1995-05-19
Publication date: 1996-05-29
Anticipated expiration: 2005-05-19

Abstract

The utility model relates to an anti-backrunning device for automobiles, which is characterized in that a unidirectional device composed of a unidirectional ratchet (2), an external tooth ring (3) and a clamping pin (4) is added on an automobile speed variator. A hydraulic cylinder (6) controlled by an automobile brake pedal is arranged beside the unidirectional device. When the clamping pin is clamped in the tooth slot of the external tooth ring, the unidirectional ratchet makes the input shaft (1) of the speed variator rotate only along the planned direction. When an automobile stops, the utility model can successfully shift gear as long as the brake pedal is not loosed. When the brake pedal is not pedaled, the utility model can not stop the automobile and shift gear. The utility model can prevent the automobile from sliding back when the automobile stops and starts at slopes, which improves the safety.

Description

The anti-slip back device of automobile

The utility model relates to a kind of device that falls to slip that prevents that automobile from travelling on the ramp.

Stopping time when automobile travels when meeting traffic tie-up row on the ramp, exist and should start to walk to move ahead, brake anti-slip back contradiction again, this not only makes complicated operationization, increase the psychological burden of chaufeur, also increased the wearing and tearing of quickening drag friction position and clutch-lining simultaneously.Chinese patent 92201813.3 discloses a kind of vehicle and has prevented the backward device, it comprises the ratchet group that is directly fixed on the general automobile gear variable gear casing, gear stretches into box house and bottom gear or the gear that reverses gear is meshing with each other, utilize the characteristics of ratchet unidirectional rotation, prevent the slide of generation when car ramp is gone slowly, but this patent has the following disadvantages:

Gearshift difficulty when 1, stopping on the ramp;

2, in bottom gear or the shift process that reverses gear, there is the gear mesh clash;

3, exist high gear, when sail in the ramp, the possibility of the slide of suddenly stopping down.

The purpose of this utility model is to provide a kind of and Automotive transmission adapted, can effectively prevent the backward phenomenon when automobile travels on the ramp.

Above-mentioned purpose of the present utility model can realize by such technical scheme, be that the utility model has increased an isolator on former Automotive transmission, this isolator is made up of ratchet, its external toothing and bayonet lock, the isolator next door is provided with a hydraulic actuating cylinder by automobile brake pedal control, by stretching of its control bayonet lock, when bayonet lock stretched out and be stuck in the teeth groove of external toothing, ratchet made the input shaft can only be by drafting the direction rotation.

Said structure of the present utility model can further specify by the embodiment that accompanying drawing provides:

The utility model has following accompanying drawing.

Accompanying drawing 1 is the structure cut-away view of the utility model embodiment 1;

Accompanying drawing 2 is a fundamental diagram of the present utility model;

Accompanying drawing 3 is the structural representation of embodiment 2 of the present utility model.

Referring to accompanying

drawing

1,2, in this embodiment, with input shaft 1 lengthening of Automotive transmission, ratchet 2 on the primary shaft rear bearing behind the lengthening is pre-installed, this ratchet merges with the key assurance with primary shaft 1 rotation with the input shaft close-fitting.Whether the external toothing 3 of ratchet rotates by bayonet lock 4 decisions, bayonet lock 4 does not withstand in the teeth groove of external toothing 3 in the effect of spring 5, external toothing can not be rotated and under the unidirectional restriction of ratchet together with axle, automobile can only each keeps off the direction running of being drafted along change-speed box, be provided with an only hydraulic actuating cylinder of controlling by automobile brake pedal 6 that disappears on the isolator side, when brake pedal depresses when promptly braking, drive hydraulic cylinder works, make bayonet lock withdraw from the teeth groove of external toothing 3, at this moment just removed unilateral system approximately, so gearshift smoothly.

Referring to accompanying drawing 3, in embodiment 2, the ratchet of isolator is solidly set on auxilliary add axle 7 on parallel with input shaft 1, by gear fixing on the axle 78 and input shaft gear engagement.

Adopt automobile and the general-utility car of the utility model back-slide-proof device that following advantage is relatively arranged:

1, when stopping only otherwise loose brake pedal just can shift gears smoothly, do not step on system The gearshift of just can not stopping of moving pedal.

2, will go up a slope " three cooperate " of starting by brake, throttle, clutch Operation becomes two compounding practices of throttle and clutch, makes the automobile up slope starting with flat The equally simple and easy grasp of ground driveaway operation.

3, making automobile stop in the ramp and start to walk does not have the slide of falling, and has increased safety.

4, eliminated and should move ahead when going up a slope starting and need to brake anti-slip back contradiction, both alleviated the psychological burden that chaufeur is overcautious and indecisive, reduced the wearing and tearing of system friction means and clutch-lining again, shift process can not produce the gear mesh clash.

5, can not shift gears after the parking.All each retainings all can not slip the neutral when slipping except that need.

Claims

1, the anti-slip back device of a kind of automobile, it is characterized in that: on Automotive transmission, increased an isolator, this isolator is by ratchet (2), its external toothing (3) and bayonet lock (4) are formed, the isolator next door is provided with a hydraulic actuating cylinder (6) by automobile brake pedal control, by shrinking of its control bayonet lock, when bayonet lock stretched out and be stuck in the teeth groove of external toothing, ratchet can only rotate input shaft (1) by the direction of drafting.

2, the anti-slip back device of automobile according to claim 1, ratchet (2) that it is characterized in that isolator and input shaft (1) flush fit.

3, the anti-slip back device of automobile according to claim 1 is characterized in that the ratchet of isolator is solidly set on auxilliary add axle (7) on parallel with input shaft (1), goes up fixing gear (8) and the engagement of input shaft (1) shaft gear by axle (7).