CN2230823Y

CN2230823Y - Safety hand crank

Info

Publication number: CN2230823Y
Application number: CN 95231851
Authority: CN
Inventors: 刘春�
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-03
Filing date: 1995-08-03
Publication date: 1996-07-10
Anticipated expiration: 2005-08-03

Abstract

Disclosed is a safety hand crank, a matched tool for a motor vehicle, which is a mechanical transmission mechanism. The utility model is characterized in that a rebounding switch is engaged with a rebounding gear and a lockpin slide block mutually, a compress spring is arranged on the lockpin slide block which is penetrated into the head of an ejector pin, a compress spring is arranged on the ejector pin head, and a starting block is engaged with a rod block wheel. When the crank vehicle is started up normally, the device is capable of transferring the power from the crank vehicle to the auto-engine. Once rebound occurs, the handle is clasped and the rod block wheel is separated from the main member of the hand crank to idler with no personnel injury. The utility model has the advantages of simple structure, convenient usage and high safety.

Description

Safety cranking-bar

The utility model relates to a kind of motor vehicle kit---safety cranking-bar.

Existing automobile driver or the employed automobile starting crank of repairman all be one turn the shape crank.When using its to start automobile, the accident of hurting sb.'s feelings the crank bounce-back often appears and.Exceptionally worry when causing people's larry.

The purpose of this utility model provides a kind of safety cranking-bar, and it is easy to use safe and reliable, can exert oneself the trouble and worry except that automobile driver or repairman fully.

The purpose of this utility model is to realize like this.

Safety cranking-bar is by a series of driving mechanisms, rotation can be passed to motor car engine, again can be when crank rebounds and handle break away from, thereby do not hurt sb.'s feelings, safe and reliable.

Describe its technical solution in detail below in conjunction with embodiment's accompanying drawing:

Fig. 1 is the front view of safety cranking-bar main body.

Fig. 2 is the A-A sectional view of safety cranking-bar.

Referring to Fig. 1 and Fig. 2, bounce-back gear 2 is fixed as one by pinning 12 and handle sleeve 13, and the axle of bounce-back gear 2 can relatively rotate with crank main body 1.Bounce-back switch 3 is meshing with each other with bounce-back gear 2 and lock pin slide block 5, and pressure spring 6 is arranged on lock pin slide block 5, lock pin slide block 5 stretches in the ejector pin head 11, pressure spring 10 is housed on the ejector pin head 11, start fixture block 8 and be meshed with inserted link card wheel 9, bounce-back switch 3 with have extension spring 4 to link to each other with crank main body 1 respectively above the startup fixture block 8 with 7.Crank inserted link 9 usefulness pinnings 12 fix with inserted link skull 15, and and crank main body 1 between relatively rotate.Gland 17 is fixed on the crank main body 1 by bolt 14 and nut 16.

Its working principle is such:

When normal startup larry, crank main body 1 is rotated around crank inserted link 9 counterclockwise, and bounce-back gear 2 clockwise rotates with respect to crank main body 1, and the switch 3 that rebounds at this moment can not pulled out the lock pin slide block from ejector pin head 11.Start fixture block 8 like this and take turns 9 tight engagement, drive crank inserted link 9 and rotate counterclockwise, the power of larry is passed to motor car engine with the inserted link card.

If in case have a rebound, promptly the rebounding force of motor car engine will drive crank inserted link 9 and clockwise rotate, at this moment, because inserted link card wheel 9 and startup fixture block 8; Start fixture block 8 and ejector pin head 11; Ejector pin head 11 and lock pin slide block 5; Lock pin slide block 5 and bounce-back switch 3; Bounce-back switch 3 all is a tight engagement with bounce-back gear 2, certainly will drive crank main body 1 like this clockwise rotates, in case and crank main body 1 clockwise rotates, because hand-tight handle sleeve 13, and make bounce-back gear 2 rotate counterclockwise with respect to crank main body 1, the switch 3 that consequently rebounds pulls out lock pin slide block 5 in ejector pin head 11, ejector pin head 11 effect of extension spring 7 in addition that moves upward, cause the startup fixture block 8 and the gear of inserted link card wheel 9 to break away from, inserted link card wheel 9 and crank main part 1 break away from and dally.Thereby be unlikely and hurt sb.'s feelings.

Claims

A kind of motor vehicle kit---safety cranking-bar, structure is a mechanical transmission mechanism, it is characterized in that: bounce-back gear (2) is fixed as one by pinning (12) and handle sleeve (13), the axle of bounce-back gear (2) can relatively rotate with crank main body (1), bounce-back switch (3) is meshing with each other with bounce-back gear (2) and lock pin slide block (5), and pressure spring (6) is arranged on lock pin slide block (5), lock pin slide block (5) stretches in the ejector pin head (11), pressure spring (10) is housed on the ejector pin head (11), start fixture block (8) and be meshed with inserted link card wheel (9), bounce-back switch (3) with have extension spring (4) to link to each other with crank main body (1) respectively above the startup fixture block (8) with (7).Crank inserted link (9) fixes with pinning (12) and inserted link skull (5), and and crank main body (1) between relatively rotate.