CN201626270U

CN201626270U - Trailer device

Info

Publication number: CN201626270U
Application number: CN2010200149920U
Authority: CN
Inventors: 张世军; 孙慧芝; 王福忠; 王海军
Original assignee: Shandong Transport Vocational College
Current assignee: Shandong Transport Vocational College
Priority date: 2010-01-16
Filing date: 2010-01-16
Publication date: 2010-11-10
Anticipated expiration: 2020-01-16

Abstract

The utility model discloses a trailer device, which belongs to a traction device. The trailer device comprises a sleeve with a closed end and an opening end; a sleeve end cover fixedly mounted at the opening end of the sleeve; a draw bar including an inner end mounted in the sleeve through a spring, and an outer end protruding out of the sleeve end cover; and two connection terminals respectively and fixedly mounted at the closed end of the sleeve and the outer end of the draw bar. The trailer device overcomes the disadvantages in the prior art, such as poor portability of a rigid traction trailer rod and easy breakage of a flexible traction trailer rope, thereby enhancing the use performance of the trailer traction device.

Description

Vehicle drawing unit

Technical field

The utility model relates to a kind of draw gear, relates in particular to a kind of automobile-used vehicle drawing unit.

Background technology

Automobile breaks down can't cruising the time in the process of moving, needs other vehicles auxiliary dilatory, and at present, automobile trailer mode mainly contains three kinds: one is to use the special-use vehicle trailer, and expense is very high; The 2nd, the hard breakdown trailer of employing trailer thick stick, the trailer thick stick not only carries inconvenience, nor may be equipped with a cover by per car; The 3rd, the soft breakdown trailer of employing trailer rope still, because the operant level of chaufeur is inconsistent, when starting or speed change, when being subjected to the greater impact load, is very easily pulled apart the trailer rope.

The utility model content

Technical problem to be solved in the utility model is: a kind of vehicle drawing unit is provided, has overcome carrying of hard breakdown trailer bar defective inconvenient and that soft breakdown trailer rope is pulled apart easily, improved the in-use performance of trailer traction device.

For solving the problems of the technologies described above, the technical solution of the utility model is: vehicle drawing unit comprises sleeve, described sleeve one end sealing, other end opening; The sleeve end cap, described sleeve end cap is fixedly installed in the open end of described sleeve; Pull bar, the inner of described pull bar is installed in the described sleeve by spring, and described sleeve end cap is stretched out in the outer end of described pull bar; Two socket terminal, and described two socket the outer end that terminal is fixedly installed in the closed end and the described pull bar of described sleeve respectively.

As a kind of improvement, described spring comprises first spring, described first spring housing be located on the described pull bar and cramping between the inner of described sleeve end cap and pull bar.

As further improvement, described spring also comprises second spring, and described second spring clip is pressed between the inner of the closed end of described sleeve and pull bar.

As a kind of improvement, the described terminal that sockets is drag hook or draw ring.

Owing to adopted technique scheme, the beneficial effects of the utility model are: because vehicle drawing unit has adopted telescoping structure, pull bar can be contracted to sleeve obsolete the time, reduce the occupation of land space of vehicle drawing unit, be convenient for carrying; Because the pull bar elastomeric mounting is in sleeve, between the inner of pull bar and sleeve end cap, be clamped with first spring, make trailer when starting or speed change, because the buffer action of spring, vehicle drawing unit can bear greater impact load, has improved the in-use performance of vehicle drawing unit and has prolonged service life of vehicle drawing unit.

Owing between the closed end of sleeve and pull bar the inner, also be provided with second spring, make the in-use performance of vehicle drawing unit optimize more, not only can cushion starting or the impact when quickening, in the time of can also cushioning brake or deceleration to the impact of trailer.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structural representation of the another kind of embodiment of the utility model;

Among the figure: 1, draw ring, 2, sleeve, 3, nut, 4, packing ring, 5, first spring, 6, the sleeve end cap, 7, pull bar, 8, second spring.

The specific embodiment

Embodiment one:

As shown in Figure 1, a kind of vehicle drawing unit comprises sleeve 2, the end sealing of sleeve 2, other end opening; Sleeve end cap 6, sleeve end cap 6 is fixedly installed in the open end of sleeve 2; Pull bar 7, the inner of pull bar 7 is installed in the sleeve 2 by spring, and the inner of pull bar 7 is provided with nut 3, and nut 3 is by spring cotter or a certain correct position of dowel fixes on pull bar 7, and sleeve end cap 6 is stretched out in the outer end of pull bar 7; Two socket terminal, and two socket the outer end that terminal is fixedly installed in the closed end and the pull bar 7 of sleeve 2 respectively, socket terminal preferably drag hook or draw ring 1.Spring comprise that first spring, 5, the first springs 5 are sheathed on the pull bar 7 and cramping between the inner of sleeve end cap 6 and pull bar 7, be provided with packing ring 4 between first spring 5 and the nut 3.

In starting or during speed change, because the buffer action of first spring 5, vehicle drawing unit can bear the greater impact load, has improved the in-use performance of vehicle drawing unit and has prolonged service life of vehicle drawing unit.

Embodiment two:

As shown in Figure 2, a kind of vehicle drawing unit, structure and embodiment one are basic identical, and its difference is: spring comprises that also second spring, 8, the second springs, 8 crampings between the inner of the closed end of sleeve 2 and pull bar 7, also are provided with packing ring 4 between second spring 8 and the nut 3.

In the trailer process because the buffer action of first spring 5 and second spring 8, not only can cushion starting or the impact when quickening, can also cushion brake or when slowing down to the impact of trailer.

The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the present utility model.

Claims

1. vehicle drawing unit is characterized in that: comprise

Sleeve, described sleeve one end sealing, other end opening;

The sleeve end cap, described sleeve end cap is fixedly installed in the open end of described sleeve;

Pull bar, the inner of described pull bar is installed in the described sleeve by spring, and described sleeve end cap is stretched out in the outer end of described pull bar;

Two socket terminal, and described two socket the outer end that terminal is fixedly installed in the closed end and the described pull bar of described sleeve respectively.

2. vehicle drawing unit as claimed in claim 1 is characterized in that: described spring comprises first spring, described first spring housing be located on the described pull bar and cramping between the inner of described sleeve end cap and pull bar.

3. vehicle drawing unit as claimed in claim 2 is characterized in that: described spring also comprises second spring, and described second spring clip is pressed between the inner of the closed end of described sleeve and pull bar.

4. vehicle drawing unit as claimed in claim 1 is characterized in that: the described terminal that sockets is drag hook or draw ring.