CN101612869B

CN101612869B - Self-locking traction apparatus for motor vehicle

Info

Publication number: CN101612869B
Application number: CN2009101006540A
Authority: CN
Inventors: 叶培玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-15
Filing date: 2009-07-15
Publication date: 2012-01-11
Anticipated expiration: 2029-07-15
Also published as: CN101612869A

Abstract

The invention relates to a self-locking traction apparatus for a motor vehicle, comprising a handle and a ball head opening and closing device installed in a shell, wherein the ball head opening and closing device comprises a connecting rod, a handle, a connecting rod spring, a ball valve and a ball valve spring which are installed in the shell and are respectively rotated along a connecting rod shaft and a ball valve shaft; and one end of the connecting rod is matched with the ball valve, the other end of the connecting rod is fixed on the handle, and the springs are also fixed on the handle. Except for the handle, the other parts of the traction apparatus are completely installed in the shell, thereby enabling the structure to be compact and the volume to be small; the connecting rod and the ball valve have the double functions of ball head opening and closing and locking, the end face of the connecting rod is matched with an inclined face on the ball valve so as to carry out self-locking, and the operation of self-locking is synchronously carried out when the motion of opening and closing is accomplished; and the double functions are realized by the same set of components, and a locking device does not need to be used. Therefore, the invention has the advantages of simple structure, few components, easy processing and installation of the components, easy and labor-saving operation and safe and reliable usage, and can be matched with various traction vehicles to tract trailer trucks, failure vehicles, etc.

Description

Self-locking traction apparatus for motor vehicle

Technical field

The present invention relates to a kind of tractor, 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 the self-propelled vehicle catastrophic failure that goes can not go and will 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 through tractor.

The patent No. 200510050057.3 " Piston-type vehicle traction device and its assembly method " is though provide a kind of automobile tractor safe in utilization, its complex structure; For guaranteeing that safe in utilization its set up spanner support limit self device again in wrench assembly, if will rotate the rotating cam assembly is inserted in the interior ball-and-socket of drawing head bulb, letting initiatively, automobile and failed vehicle link into an integrated entity through 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 90 ° of its rotations are shunk back the piston body in the drawing head simultaneously; Could bulb be filled in the ball-and-socket; And the rotating cam unit construction is complicated, and is installed on the external diameter of drawing head, and wrench assembly, spanner support, pivot pin are installed in again outside the rotating cam assembly; Therefore not only many, the difficult processing of part; 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 could get into operating sequence, be prone to take place misoperation.

Summary of the invention

Technical matters to be solved by this invention is: a kind of self-locking traction apparatus for motor vehicle is provided, and it is simple in structure, part is few, be prone to 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 present invention 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, and the other end of connecting rod is fixed on the described handle, also is fixed with spring on the said handle.

Said 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.

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

The shape of said 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 said 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, the invention has the advantages that: this tractor is except that handle, and 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; Accomplish dual-use function with same set of part; Promptly when opening and closing movement is accomplished, carry out self-locking synchronously, therefore simple in structure, part is few, part is prone to processing, installs.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, and connecting rod clockwise rotates under the effect of spring, withstands 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 invention (open mode).

Fig. 2, structural representation of the present invention (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 embodiments of the invention are 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, and 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 are 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, is fixed on the two side of housing 1, and 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, like Fig. 1, shown in 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 oblique flange 8-1 on the handle also withstands left flange 1-1 on the housing 1 from pinning, 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 through housing 1 upper surface is fixed on (figure is picture) 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; Simultaneously connecting rod 7 no ball locks 2 stop that also clockwise direction rotates an angle, touch the right flange 1-2 of housing up to the sidewall of connecting rod 7 and can not rotate again to extremely, 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; Under the effect of rod spring 10, connecting rod removes to embrace bulb 11 for all the time power forward of ball lock, like Fig. 2, Fig. 3, shown in Figure 4 simultaneously.

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; The lower end of connecting rod (7) cooperates with ball lock (2), and the upper end of connecting rod (7) is fixed on the described handle (8), also is fixed with spring (5) on the said handle (8); One end of said 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).

2. self-locking traction apparatus for motor vehicle according to claim 1; It is characterized in that said ball lock (2) front end face is a spherical cambered surface; The lower end is intersected by two inclined-planes, and the upper end is two arms of band through hole, and said ball lock axle (3) is through the through hole place kick lock (2) on two arms of ball lock upper end.

3. self-locking traction apparatus for motor vehicle according to claim 1; It is characterized in that said handle (8) upper end is welded into the entire cavity of osed top band pin hole by the two halves shell of symmetry; The pin-and-hole rivet clasp is passed on the pin hole of handle with set pin (6) in connecting rod (7) upper end; Handle, at its lower end is the two side of band opening, and opening part has oblique flange (8-1) and insurance hole (8-2), and oblique flange withstands the left flange (1-1) of housing (1) upper surface intermediate rectangular hole one edge during ball lock (2) open mode; Insurance hole (8-2) cooperates with the safety plug (12) of band junction button, and handle end has crotch (8-3) to rotate around pitman shaft (9).

4. according to claim 1 or 3 described self-locking traction apparatus for motor vehicle; It is characterized in that the said connecting rod (7) and the shape of handle (8) lower end are complementary; And the upper end has the pin-and-hole lower end that axis hole is arranged, and the lower end axis hole connects described pitman shaft (9), and connecting rod is clamped between the two side of handle (8); Connecting rod one sidewall withstands the right flange (1-2) of housing (1) upper surface intermediate rectangular hole one edge during ball lock (2) closure state, and the terminal edge place has protruding hook (7-1) to withstand the lower inclined plane of ball lock (2).

5. self-locking traction apparatus for motor vehicle according to claim 1; It is characterized in that being with on the said pitman shaft (9) rod spring (10), connecting rod (7); Described pitman shaft (9) 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.