CN2109961U

CN2109961U - Combined motor-driven vehicle tractor pull rod

Info

Publication number: CN2109961U
Application number: CN 91227434
Authority: CN
Inventors: 陈平
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-28
Filing date: 1991-10-28
Publication date: 1992-07-15

Abstract

The utility model relates to a traction draw rod of a combined vehicle, and the traction draw rod of the combined vehicle is composed of two end rods, an extension rod and joints. The utility model is characterized in that the end rods are composed of a draw ring device and rod bodies, the draw ring device is loaded into the chamber accompanied with thread ends of the rod bodies, and fixing nuts and internal threads on the rod bodies are matched and tightened. The external diameters of the joints are respectively matched with the inner diameters of the two end rods and the extension rod, and pins are respectively matched with the end rods and an oblong opening on the extension rod. The utility model which is a somewhat ideal traction tool of the vehicle has the advantages of convenient operation and portability.

Description

Combined motor-driven vehicle tractor pull rod

The utility model belongs to the instrument class.

Self-propelled vehicle et out of order or cause because of road is bad in the way of travelling is missed the bus, and during again away from repair plant, needs traction.Drafting tool has two kinds at present, and a kind of is the whole rigid rod of self-control, and a kind of is oil thread rope.Make whole rigid rod by oneself, exist eye hitch easily to break away from traction and collude, cause to be pulled preceding face of car damage and water tank accident, it does not have shock absorber simultaneously, can not carry with car.Generally the oil thread rope that carries with car is difficult for again enclosing song, and the tool box fails to lay down, and the flexible hinge traction is used for easily being pulled vehicle rear-end collision when long distance is drawn, and is dangerous.

The purpose of this utility model is to provide a kind of combination motor vehicle drawing pull bar, carries inconvenience, unsafe deficiency with what the solution prior art existed with car.

Design plan of the present utility model is: it is made up of two end bars, extension bar and joints.The end bar is made up of the draw ring device and the body of rod, and the draw ring device is made up of draw ring, block plate, screw mandrel, nut, two springs, two packing rings and captive nut.Draw ring, block plate and screw mandrel are the one forging and molding.According to Fig. 2 a spring is threaded end from screw mandrel and is inserted in and cooperates, be inserted in a packing ring in the same way successively, captive nut, another spring and another packing ring, the nut of screwing on block plate.The body of rod one end internal diameter is threaded, near 5 centimeters places of the other end one rectangle hole is arranged, there is a rectangle hole at 15 centimeters places of symmetry opposite side, at two rectangle hole opposite positions guide chute is arranged, with mounted draw ring device, the body of rod of packing into is threaded the end inner chamber, and the screw-internal thread fit on the captive nut and the body of rod is tightened.Extension bar respectively has a rectangle hole near 5 centimeters places, two ends, and there is a rectangle hole at 15 centimeters places of symmetrical opposite side, at the rectangle hole opposite position guide chute are arranged.Joint is made up of spring, pin and guide securement sheet, 5 centimeters places respectively are drilled with a blind hole at the joint two ends, and respectively there is a blind hole at 15 centimeters places of symmetrical opposite side, in the spring load hole, the lower end cooperates with the bottom surface, hole, reinstall pin, the big bottom face of pin cooperates with the spring other end, puts the guide securement sheet, there is a rectangle hole at guide securement sheet center, and cooperate with the pin small end, the guide securement sheet cooperates with the recessed position of fittings body near the bottom surface, outside, and screw is fixed.Fixedly extension spring is made up of two hooks, packing ring, nut and extension springs, and two hooks are threaded end and insert extension spring small end internal diameter, are inserted in packing ring, back out nut.The fittings body external diameter cooperates with two end bars and extension bar internal diameter respectively during use, and pin cooperates with rectangle hole on end bar and the extension bar respectively.

The utility model than its advantage is compared with the prior art: because a kind of combination motor vehicle drawing pull bar, be designed to sectional construction, solved inconvenient, the unsafe deficiency of carrying of integral type pull bar and oil thread rope existence, design has spring buffer on the eye hitch device, reduced the pull bar axial force to tractor truck and the impact that is pulled car, improved safety rate and service life, this combination motor vehicle drawing pull bar can extend or shorten as required.

Description of drawings:

Fig. 1 is a kind of combination motor vehicle drawing pull bar assembling relationship figure, wherein: 1, end bar 2, joint 3, extension bar

Fig. 2 is end bar structure assembly drowing, wherein: 4, draw ring 5, block plate 6, spring 7, packing ring 8, captive nut 9, spring 10, packing ring 11, nut 12, screw mandrel 13, the body of rod 14, rectangle hole 15, rectangle hole 16, guide chute 17, guide chute 33, hole

Fig. 3 is the joint design assembly drowing, wherein: 18, screw 19, guide securement sheet 20, spring 21, pin 22, pin 23, pin 24, pin

Fig. 4 is the extension bar constructional drawing, wherein: 25, guide chute 26, guide chute 27, rectangle hole 28, rectangle hole 29, rectangle hole 30, guide chute 31, rectangle hole 32, guide chute

Fig. 5 is the steady brace constructional drawing, wherein: 34, hook 35, packing ring 36, nut 37, extension spring 38, hook

The utility model most preferred embodiment is: it is by two end bars, extension bar and joint are formed, the end bar is made up of the draw ring device and the body of rod, the draw ring device is by draw ring (4), block plate (5), screw mandrel (12), nut (11), two springs (6) and (9), two packing rings (7), (10) and captive nut (8) form, draw ring (4), block plate (5) and screw mandrel (12) are one, forge or cast form, according to Fig. 2 setting-up procedure, spring (6) is threaded end from screw mandrel (12) and is inserted in, one end and cooperate with block plate (5), internal diameter cooperates with screw mandrel (12), be inserted in packing ring (7) in the same way successively, one side cooperates with spring (6) other end, internal diameter cooperates with screw mandrel (12), being inserted in captive nut (8) cooperates with packing ring (7), internal diameter cooperates with screw mandrel (12), be inserted in spring (9), one end cooperates with captive nut (8), internal diameter cooperates with screw mandrel (12), being inserted in packing ring (10) one side cooperates with spring (9) other end, internal diameter cooperates with screw mandrel (12), the nut of screwing on (11).With the thick walled steel tube is that the body of rod (13) that raw MAT'L is made oozes the charcoal processing, chrome-faced, be threaded at the body of rod (13) one end internal diameters, near 5 centimeters places of the other end one rectangle hole (15) is arranged, there is a rectangle hole (14) at 15 centimeters places of symmetry opposite side, two rectangle holes (15), (14) opposite position have guide chute (16), (17), with mounted draw ring device, the body of rod (15) of packing into is threaded the end inner chamber, and at this moment captive nut (8) is tightened with the screw-internal thread fit on the body of rod (13).With the thick walled steel tube is that the extension bar (3) that raw MAT'L is made oozes the charcoal processing, chrome-faced, near 5 centimeters places, two ends one rectangle hole (27), (31) are arranged respectively at extension bar (3), respectively there are a rectangle hole (28), (29) in 15 centimeters places of symmetry opposite side, at rectangle hole (27), (31), (28), (29) opposite position guide chute (25), (26), (30), (32) are arranged.Joint (2) is by spring (20), pin (21), (22), (23), (24) and guide securement sheet (19) form, it is raw MAT'L that joint (2) adopts smooth bar, oozing charcoal handles, chrome-faced, 5 centimeters places, two ends respectively are drilled with blind hole, 15 centimeters places of symmetry opposite side respectively are drilled with blind hole, in spring (20) load hole, the lower end cooperates with at the bottom of the hole, reinstalls pin (21), and pin (21) is step-like, big end is cylindric, the small end shape that is rectangle, and the top is 30 degree oblique angles, and the big bottom of pin (21) face cooperates with spring (20) other end, put guide securement sheet (19), there is a rectangle hole at guide securement sheet (19) center, and cooperates with 4 side surfaces of pin (21) small end, is fixed on the recessed position of a body (2) with screw (18).Using method of the present utility model is, press Fig. 1 form with 2 pins (21) on joint (2) one ends, (22) guide chute (16) on the aligning body of rod (13) internal diameter, (17) insert, at this moment spring (20) is compressive state, be inserted to rectangle hole (14), (15) locate, spring (20) is upspring, at this moment sell (21), (22) small end and rectangle hole (14), (15) cooperate, in like manner the joint other end inserts extension bar (3), insert a joint again at the extension bar other end, this joint other end inserts another end bar, after assembling finishes, the traction that draw ring on one of them end bar is hung over the tractor truck back is colluded, draw ring on the other end bar (4) hangs over the traction that is pulled before the car and colludes, hook (38) in the fixing extension spring is hung in the hole (33) on the block plate (5), hook (34) hung on the bumper/spoiler that is pulled car get final product, towage finishes, take off fixedly extension spring, draw ring colluded from traction take off, press downside pin with hand, make pin break away from the rectangle hole of holding on the bar, dial bottom end pulling bar, in like manner dial down extension bar and get final product.

Claims

1, a kind of combination motor vehicle drawing pull bar, form by two end bars, extension bar and joints, it is characterized in that: the end bar is made up of the draw ring device and the body of rod, the draw ring device body of rod of packing into is threaded the end inner chamber, screw-internal thread fit on the captive nut and the body of rod is tightened, the joint external diameter cooperates with two end bars and extension bar internal diameter respectively, and pin cooperates with rectangle hole on end bar and the extension bar respectively.

2, a kind of combination motor vehicle drawing pull bar according to claim 1, it is characterized in that: on the body of rod and extension bar rectangle hole is arranged, opposite position has guide chute.

3, a kind of combination motor vehicle drawing pull bar according to claim 1 is characterized in that: pin is step-like, and big end is cylindric, and small end is rectangle, and the top is 30 degree oblique angles.