CN201456960U

CN201456960U - Self-locking motor vehicle tractor

Info

Publication number: CN201456960U
Application number: CN2009201245000U
Authority: CN
Inventors: 叶培玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-15
Filing date: 2009-07-15
Publication date: 2010-05-12
Anticipated expiration: 2019-07-15

Abstract

The utility model relates to a self-locking motor vehicle tractor which comprises a handle and a ball joint opening-closing device arranged in a shell, wherein the ball joint opening-closing device comprises a connecting rod, the handle, a connecting rod spring, a ball gate and a ball gate spring; the connecting rod is arranged in the shell and rotates along a connecting rod shaft and a ball gate shaft, one end of the connecting rod is matched with the ball gate, the other end of the connecting rod is fixed on the handle, and a spring is also fixed on the handle. Besides the handle, other parts of the tractor are all arranged in the shell, and the tractor has compact structure and small size; the connecting rod and the ball gate have opening-closing function and double locking function, the end surface of the connecting rod and the inclined surface on the ball gate are matched to carry out self-locking, and the self-locking is synchronously carried out while finishing the opening-closing action; the self-locking motor vehicle tractor finishes the double function by using a set of parts without additional locking devices; therefore, the utility model has the advantages of simple structure, less parts, easy processing and installation of parts, simple operation, labor saving and safe and reliable use and is especially suitable for towing trailers, disabled vehicles, and the like by matching various tractors.

Description

Self-locking traction apparatus for motor vehicle

Technical field

The utility model relates to a kind of tractor, and particularly a kind of being installed on the tractor truck connects the device self-locking traction apparatus for motor vehicle that drags, draws fast to trailer or failed vehicle.

Background technology

Flourish along with communication, vehicle increasing, crowding of road, if can not travelling, the self-propelled vehicle catastrophic failure that travels to influence the cruising of car, serious even cause gridlock, at this moment need take immediate steps and drag failed vehicle away from on-the-spot mediation road with tractor truck by tractor.

The patent No. 200510050057.3 " Piston-type vehicle traction device and its assembly method ", though a kind of automobile tractor safe in utilization is provided, but its complex structure, in wrench assembly, set up spanner support limit self device again for guaranteeing safe in utilization its, if will rotate the rotating cam assembly bulb is inserted in the interior ball-and-socket of drawing head, allow active automobile and failed vehicle link into an integrated entity by tractor, at this moment also must pull wrench assembly earlier, wrench assembly will be pushed pivot pin earlier open makes it break away from the spanner support, could rotate the rotating cam assembly makes it rotate 90 ° the piston body in the drawing head shunk back simultaneously, bulb could be filled in the ball-and-socket, and rotating cam unit construction complexity, and be installed on the external diameter of drawing head, wrench assembly, the spanner support, pivot pin is installed in again outside the rotating cam assembly, therefore not only part is many, difficult processing, difficult assembling, and volume is big, Heavy Weight, the while troublesome poeration, before operation, also to remove the spacing latching device in many places earlier and just can enter operating sequence, misoperation easily takes place.

Summary of the invention

Technical problem to be solved in the utility model is: a kind of self-locking traction apparatus for motor vehicle is provided, it is simple in structure, part is few, easy processing, assembling, and easy to operate, laborsaving, and common people can both operate, can be supporting with various power actuated vehicles, use safety and reliability.

The technical scheme that the utility model addresses the above problem employing is: self-locking traction apparatus for motor vehicle, form by handle and the bulb closing device that is installed in the housing, described bulb closing device is formed by being installed in connecting rod, handle, rod spring and the ball lock, the ball lock spring that rotate along pitman shaft, ball lock axle respectively in the housing, one end of connecting rod cooperates with the ball lock, the other end of connecting rod is fixed on the described handle, also is fixed with spring on the described handle.

Described ball lock front end face is a spherical cambered surface, and the lower end is intersected by upper and lower inclined-plane, and the upper end is two arms of band through hole.

Be welded into the integral cavity of osed top band pin hole on the described handle by the two halves shell of symmetry, the lower end is the two side of band opening, and opening part has oblique flange and insurance hole, and end has crotch, insures the hole and cooperates with the safety plug of band junction button.

The shape of described connecting rod and handle, at its lower end is complementary, and small end has the pin-and-hole lower end that axis hole is arranged, and there is protruding hook at the terminal edge place; Small end passes on the pin hole that pin-and-hole is fixed on handle with set pin, and is clamped between the two side of handle.

The pitman shaft that is with rod spring, connecting rod is fixed on the two side of housing, and rod spring one end is close to the inwall of housing, and the other end is close on the sidewall of connecting rod lower end.

The ball lock axle that is with ball lock spring, ball lock is fixed on the two side of housing, and an end of ball lock spring is close to inner walls, and the other end is close to ball lock axle.

One end of described spring is fixed on the sidewall of small end, and the other end of spring is fixed on the corresponding section of handle.

Compared with prior art, advantage of the present utility model is: this tractor is except that handle, remainder is installed in the housing entirely, compact conformation, volume are little, and connecting rod and ball lock also have the dual-use function of locking except that bulb folding function is arranged, and the end face of connecting rod cooperates with inclined-plane on the ball lock and carries out self-locking, finish dual-use function with same set of part, promptly carry out self-locking when opening and closing movement is finished synchronously, therefore simple in structure, part is few, part is easily processed, is installed.During use as long as the ball lock chamber that bulb inserts on the housing will the impact bead lock, the impact bead lock makes it rotate the locking effect that an angle breaks away from connecting rod, connecting rod clockwise rotates under the effect of spring, withstand the ramp of ball lock lower end, the ball lock is gone ahead embrace bulb and locking automatically, do not need other latching device, therefore simple to operate, laborsaving, the people of general strength can operate.After bulb is held tightly, the safety plug of band junction button also is installed in the insurance hole of two side, handle the place ahead, it can not rotated again can carry out double insurance, use safety and reliability.

Description of drawings

Fig. 1, structural representation of the present utility model (open mode).

Fig. 2, structural representation of the present utility model (closure state).

The upward view of Fig. 3, Fig. 2 (not drawing bulb).

The birds-eye view of Fig. 4, Fig. 2.

The structural representation of Fig. 5, handle.

The A of Fig. 6, Fig. 5 is to view.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

The integral body of housing 1 for being cast into, own wt is light, but can carry high load capacity, front end is the bulb chamber 1-3 of bulb-type, and the rear end upper surface has mounting hole 1-4, and mounting hole is also arranged on the two side, there are rectangular opening, rectangular opening two edges that left and right flange 1-1, the 1-2 of symmetry are arranged in the middle of the upper surface.

Ball lock 2 front end faces are spherical cambered surface, and the lower end is intersected by upper and lower inclined-plane, and the upper end is two arms of band through hole.

Handle 8 upper ends are welded into the sealed whole body cavity by the two halves shell of symmetry, and the two side of pin hole lower end for band opening and insurance hole 8-2 arranged on the two side, and opening part has oblique flange 8-1, and end has crotch 8-3.

Connecting rod 7 is complementary with the shape of handle 8 lower ends, and the upper end has the pin-and-hole lower end that axis hole is arranged, and there is protruding hook 7-1 at the terminal edge place.

Connecting rod 7 usefulness set pins 6 pass the pin-and-hole rivet clasp on the pin hole of handle, and be clamped between the two side of handle 8, the rectangular opening in the middle of the housing 1 is passed in handle 8 and connecting rod 7 lower ends, the axis hole and the mounting hole on the housing that pass connecting rod 7 lower ends with pitman shaft 9 are fixed on the two side of housing 1, also be with rod spring 10 on the pitman shaft 9, one end of rod spring 10 is close to the inwall of housing 1, and the other end is close on the sidewall of connecting rod 7 lower ends.

Ball lock axle 3 passes through hole and the ball lock spring 4 on housing 1, the ball lock 2, be fixed on the two side of housing 1, ball lock spring 4 one ends are close to housing 1 inwall, the other end is close to ball lock axle 3, and connecting rod 7 is cooperated with ball lock 2, rod spring 10 diameters also are fixed with an end of spring 5 greater than ball lock spring 4 on one sidewall of connecting rod 7 upper ends, the other end of spring 5 is fixed on the corresponding section on the handle 8, as shown in Figure 1 and Figure 2.

During use, be illustrated in figure 1 as open mode, at this moment the protruding hook 7-1 at connecting rod 7 terminal edge places withstands the lower inclined plane of ball lock 2, and the left flange 1-1 that the oblique flange 8-1 on the handle also withstands on the housing 1 pins certainly, and the spherical cambered surface of ball lock 2 is greater than the diameter of bulb 11 to the distance between housing 1 antetheca, and the mounting hole 1-4 by housing 1 upper surface is fixed on (figure draws) on the tractor truck with support.

At this moment bulb 11 is inserted in the bulb chamber 1-3, the spherical cambered surface of bulb impact bead lock 2 also overcomes the effect of ball lock spring 4, make ball lock 2 clockwise directions rotate the locking that an angle is thrown off connecting rod 7, connecting rod 7 no ball locks 2 stops that also clockwise direction rotates an angle simultaneously, touching the right flange 1-2 of housing up to the sidewall of connecting rod 7 can not rotate to extremely again, while ramp of ball lock 2 lower ends under the effect of ball lock spring 4 props up the lower surface auto lock of connecting rod 7, at this moment the spherical cambered surface of ball lock 2 front ends just holds bulb 11 and is in closure state, simultaneously under the effect of rod spring 10, connecting rod removes to embrace bulb 11 for all the time power forward of ball lock, as Fig. 2, Fig. 3, shown in Figure 4.

Vehicle is in operation, and is not rotated by bump for making connecting rod, and the safety that protection is used is also inserted in the insurance hole 8-2 of connecting rod 7 front end handle two sides with band junction button safety plug 12, plays the effect of double insurance.

If will take out bulb 11 need extract safety plug 12 earlier, press handle 8 as long as pull backward, to remove the self-locking of connecting

rod

7 and 2 pairs of bulbs 11 of ball lock earlier, the bulb chamber 1-3 that bulb 11 is broken away from the housing 1, simple to operate, easy to use, save time, laborsaving, as shown in Figure 1.

Claims

1. self-locking traction apparatus for motor vehicle, form by handle (8) and the bulb closing device that is installed in the housing (1), it is characterized in that described bulb closing device forms by being installed in the housing (1) connecting rod (7), handle (8), rod spring (10) and the ball lock (2), the ball lock spring (4) that rotate along pitman shaft (9), ball lock axle (3) respectively, one end of connecting rod (7) cooperates with ball lock (2), the other end of connecting rod (7) is fixed on the described handle (8), also is fixed with spring (5) on the described handle (8).

2. self-locking traction apparatus for motor vehicle according to claim 1 is characterized in that described ball lock (2) front end face is a spherical cambered surface, and the lower end is intersected by two inclined-planes, and the upper end is two arms of band through hole.

3. self-locking traction apparatus for motor vehicle according to claim 1, it is characterized in that described handle (8) upper end is welded into the integral cavity of osed top band pin hole by the two halves shell of symmetry, the lower end is the two side of band opening, opening part has oblique flange (8-1) and insurance hole (8-2), end has crotch (8-3), and insurance hole (8-2) cooperates with the safety plug (12) of band junction button.

4. self-locking traction apparatus for motor vehicle according to claim 1 is characterized in that the shape of described connecting rod (7) and handle (8) lower end is complementary, and the upper end has the pin-and-hole lower end that axis hole is arranged, and there is protruding hook (7-1) at the terminal edge place; The pin-and-hole rivet clasp is passed on the pin hole of handle with set pin (6) in connecting rod (7) upper end, and is clamped between the two side of handle (8).

5. self-locking traction apparatus for motor vehicle according to claim 1, it is characterized in that the pitman shaft (9) that is with rod spring (10), connecting rod (7) is fixed on the two side of housing (1), rod spring (10) one ends are close to the inwall of housing (1), and the other end is close on the sidewall of connecting rod (7) lower end.

6. self-locking traction apparatus for motor vehicle according to claim 1, it is characterized in that the ball lock axle (3) that is with ball lock spring (4), ball lock (2) is fixed on the two side of housing (1), one end of ball lock spring (4) is close to housing (1) inwall, and the other end is close to ball lock axle (3).

7. self-locking traction apparatus for motor vehicle according to claim 1 is characterized in that an end of described spring (5) is fixed on the sidewall of connecting rod (7) upper end, and the other end of spring (5) is fixed on the corresponding section of handle (8).