CN2298950Y

CN2298950Y - Folding trailer beam

Info

Publication number: CN2298950Y
Application number: CN 97221462
Authority: CN
Inventors: 许卓英; 王成贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-22
Filing date: 1997-07-22
Publication date: 1998-12-02
Anticipated expiration: 2007-07-22

Abstract

The utility model relates to a folding trailer beam, which is composed of a tubular pull rod, a hook and a bending mechanism. The draw rod can be divided into a plurality of sections and can be rotatablely connected together through the bending mechanism. The draw rod can be extended in a line state for use, as well as can be folded together for collection. The hook can be open for hooking a tractor or a draw ring of a vehicle be drawn, and can ne closed so as to cause the hooking to be firm and reliable. The utility model has the advantages of safe work and easy collection and carrying.

Description

The folding trailer thick stick

The utility model relates to a kind of folding trailer thick stick.

At present, along with development of social productivity, the raising of people's living standard, self-propelled vehicle is more and more many, because the damage of self-propelled vehicle parts or malfunctioning, the incident of casting anchor that causes is more and more, existing self-propelled vehicle casts anchor, and how is hitched by another automobile-use rope and drags away.Rope as steel rope, often bends, and tightly easily not coming off of button has an accident; In case and the nylon rope automobile is pressed it, easily loose and brisement; An also useful oval steel pipe drags, and it carries, uses inconvenience.

The purpose of this utility model is to improve the shortcoming of prior art and a kind of easy to carry, safe and reliable trailer thick stick that can be folded is provided.

The purpose of this utility model is achieved in that it is made up of tubulose pull bar, hook and bending mechanism.The section of tubulose pull bar is preferentially selected square or oblong for use, has an oblique section at least in the middle of the described pull bar, is connected together by bending mechanism, and the pull bar two ends are fixed with plug, is provided with screw in the middle of the plug; Described hook is made up of hook base, gib head, bearing pin, lock pin, spring; Hook base one end has the double-screw bolt that is complementary with plug, the other end is two slotting ears, one end of gib head is the slotting ear of list that is complementary with the two slotting ears of hook base, be rotatably mounted on the hook base by bearing pin, the two slotting ear termination of hook base is the inclined-plane, the protrusion on its inclined-plane is most advanced and sophisticated corresponding with the open end of gib head, in addition, on two slotting ears, fix a lock pin rotationally by bearing pin, one side of lock pin has groove, it can insert for the protruding block of gib head root, and the opposite side of lock pin also has a groove, is equipped with a spring between the groove of this groove and corresponding together two slotting eardrum portion; Described bending mechanism, it is to be fixed with Hinge on a side of pull bar oblique section and pull bar axis meet at right angles the pipe face on limit, adjacent two sections pull bars can be rotated around hinge axis, on the two sides that become hypotenuse with pull bar, be fixed with a bearing pin, be equipped with a latch hook that can rotate around it on it, latch hook is provided with the microgroove hole, be spirally connected on it one can pass cooresponding hole on the pull bar wall by post, be equipped with the groove of putting spring on the another side of latch hook, also fluted on the corresponding hinge of groove therewith, between this two-phase corresponding groove, be equipped with a spring; The cooresponding pull bar inner tube surface of the opposite side of pull bar oblique section and latch hook is provided with a lock dog, and the gib head of itself and latch hook is complementary.

During use, the pull bar of this car bar of folding and retraction done relatively rotating, press bending mechanism by post, make latch hook around its rotation, lock dog is inserted in the gib head of latch hook, unclamp by post, the folding trailer thick stick is a linear state; Push lock pin again, compression spring, can make the protruding block of gib head root break away from groove on the lock pin, gib head is rotated around its fixed pin shaft, the two slotting ear that increases gib head and hook base protrudes most advanced and sophisticated opening amount, gib head is hung tractor truck respectively and is pulled in the eye hitch of car, and then revolution gib head, gib head root protruding block inserts the groove on the lock pin, and lock pin is lived by the spring-loaded of its opposite side, and can not rotate again, and this moment, the two slotting ear of gib head and hook base protrudes the most advanced and sophisticated little opening of forming, and the vehicle traction ring can not be withdrawed from, and makes its connection firm.After using up, press earlier lock pin, rotate gib head, can unload gib head, press again, can fold up the pull bar of this trailer thick stick by post from the vehicle traction ring.This folding trailer thick stick can be made into two foldings, three foldings, four foldings etc., drags carrying capacity to decide on using.

Its pull bar of the utility model can be divided into several sections, links together rotationally by bending mechanism, and the extensible state that is in line uses, and also may be folded on collection together, and hook can be opened with the hook tractor truck or be pulled the car eye hitch, can closure so that hook is solid and reliable.

Quote embodiment below, as follows by description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the utility model pull bar and hook connection diagram

Fig. 3 is the utility model pull bar and bending mechanism connection diagram

Embodiment:

The utility model is made up of pull bar 1, hook 2 and the bending mechanism 3 of square section steel pipe manufacturing.In the middle of the described pull bar two oblique sections 11 are arranged, link together by bending mechanism.The pull bar two ends are welded with plug 12 (omitting other end hook among Fig. 1), are provided with screw 121 in the middle of the plug.Described hook is by hook base 21, gib head 22, bearing pin 23,24, lock pin 25, spring 26 is formed, one end of hook base 21 is to have the double-screw bolt 211 that is complementary with plug, the other end is two slotting ears 212, one end of gib head 22 is the slotting ear 221 of list that is complementary with the two slotting ears 212 of hook base, be rotatably mounted on the hook base by bearing pin 23, the two slotting ear end of hook base is an inclined-plane 2121, the protrusion on its inclined-plane is most advanced and sophisticated corresponding with the open end of gib head, in addition, on two slotting ears, fix a rotating lock pin 25 by bearing pin 24, one side of lock pin has groove 251, it can insert for the protruding block 222 of gib head root, the opposite side of lock pin 25 also has a groove 252, this groove 252 and and the groove 213 of its corresponding two slotting eardrum portion between be equipped with a spring 26; Described bending mechanism 3, it is to be welded with Hinge 31 on a side of the section of pull bar 1 and pull bar axis meet at right angles the pipe face on limit, adjacent two sections pull bars can be rotated around hinge axis 311, on the two sides that become hypotenuse with tubular tie, be fixed with a bearing pin 32, be equipped with a latch hook that can rotate around it 33 on it, latch hook is provided with tapped bore 331, be spirally connected on it one can pass cooresponding hole 13 on the pull bar wall by post 34, the groove 332 that putting spring 35 is arranged on the another side of latch hook, therewith on the corresponding Hinge of groove also fluted 312, the cooresponding tubulose pull bar of the opposite side on pull bar inclined-plane and latch hook inner face is provided with a lock dog 36, and the gib head 333 of itself and latch hook 33 is complementary.

During use, the pull bar 1 of this trailer thick stick of folding and retraction done relatively rotating, press bending mechanism by post; Make latch hook around its rotation, lock dog 36 is inserted in the gib head 333 of latch hook, unclamp by post, the folding trailer thick stick promptly is the linear state for stretching.Press lock pin 25 again, compression spring 26, can make the protruding block 222 of gib head 22 roots break away from groove on the lock pins, gib head 22 is rotated around axle 23, the two slotting ear inclined-plane 2121 that increases gib head 22 and hook base 21 protrudes most advanced and sophisticated opening amount, gib head is hung tractor truck respectively and is pulled in the eye hitch 4 of car, and then revolution gib head, gib head root protruding block 222 inserts the groove 251 of lock pin 25, lock pin supports by the spring 26 of its opposite side, and can not rotate again, and this moment gib head and hook base the little opening of tip composition on two slotting ear inclined-plane the vehicle traction ring can not be withdrawed from, make its connection firm.After using up, press earlier lock pin, rotate gib head, can unload gib head, press again, can fold up the pull bar of this trailer thick stick, be concealed in the car by post from the vehicle traction ring.

Claims

1, a kind of folding trailer thick stick is characterized in that it is made up of tubulose pull bar, hook and bending mechanism, has an oblique section at least in the middle of the described pull bar, is connected together by bending mechanism, and the pull bar two ends are fixed with plug, is provided with screw in the middle of the plug; Described hook is made up of hook base, gib head, bearing pin, lock pin, spring; Hook base one end has the double-screw bolt that is complementary with plug, the other end is two slotting ears, one end of gib head is the slotting ear of list that is complementary with the two slotting ears of hook base, be rotatably mounted on the hook base by bearing pin, the two slotting ear termination of hook base is the inclined-plane, the protrusion on its inclined-plane is most advanced and sophisticated corresponding with the open end of gib head, in addition, on two slotting ears, fix a lock pin rotationally by bearing pin, one side of lock pin has groove, it can insert for the protruding block of gib head root, and the opposite side of lock pin also has a groove, is equipped with a spring between the groove of this groove and corresponding together two slotting eardrum portion; Described bending mechanism, it is to be fixed with Hinge on a side of pull bar oblique section and pull bar axis meet at right angles the pipe face on limit, adjacent two sections pull bars can be rotated around hinge axis, on the two sides that become hypotenuse with pull bar, be fixed with a bearing pin, be equipped with a latch hook that can rotate around it on it, latch hook is provided with the microgroove hole, be spirally connected on it one can pass cooresponding hole on the pull bar wall by post, be equipped with the groove of putting spring on the another side of latch hook, also fluted on the corresponding hinge of groove therewith, between this two-phase corresponding groove, be equipped with a spring; The cooresponding pull bar inner tube surface of the opposite side of pull bar oblique section and latch hook is provided with a lock dog, and the gib head of itself and latch hook is complementary.

2, a kind of folding trailer thick stick according to claim 1, the section that it is characterized in that the tubulose pull bar is square or oblong.