CN200945836Y

CN200945836Y - Climbing ladder

Info

Publication number: CN200945836Y
Application number: CN 200620010435
Authority: CN
Inventors: 纪爱师; 纪国清; 宫垂剑; 魏福尊
Original assignee: Qingte Group Co Ltd
Current assignee: Qingte Group Co Ltd
Priority date: 2006-09-25
Filing date: 2006-09-25
Publication date: 2007-09-12
Anticipated expiration: 2016-09-25

Abstract

The utility model relates to a two-section climbing ladder for loading and unloading of various mechanical equipment of low flat bed semitrailer. The two sections of the climbing ladder are hinged together with the hinging point being arranged on the lower surface of the climbing ladder. The open and close of the climbing ladder is realized through an open and close mechanism which comprises a cable wire, pulleys arranged on the upper section and lower section of the climbing ladder, and a fastening pin arranged on the lower section of the climbing ladder, wherein one end of the cable wire is connected with the fastening pin and the other end of the cable wire is connected with a vehicle frame through the pulleys. The device which has novel design, simple structure and easy operation can automatically open and close under hydraulic pressure control with little space occupied during the process of opening and closing, thereby meeting the requirements of self-propelled getting on and off the low flat bed semitrailer of various machinery, greatly reducing labor intensity of workers, saving expense of crane, improving working efficiency, and guaranteeing operational safety. The utility model meets requirements of equipment transportation and construction and is easy for wide application.

Description

Cat ladder

Technical field

The utility model relates to a kind of device that low flat bed semi trailer loads and unloads various mechanical equipments that is used for, and particularly relates to a kind of cat ladder.

Background technology

Low flat bed semi trailer is a kind of transport vehicle that is used for moving, transporting various mechanical equipments, loading and unloading during the said equipment because its volume, weight are bigger, all need can finish by means of cat ladder.At present for different vehicles and the employed cat ladder structure of loading and unloading thing difference thereof, size is different, and wherein using maximum is exactly spring assist cat ladder and the formula of living cat ladder, and the cat ladder of these two kinds of versions in use must be auxiliary by manpower.Thereby labor strength is big, and safety is relatively poor.There are defectives such as in light weight, that bearing capacity is limited in addition.The two sectional type cat ladder has appearred subsequently, be about to cat ladder and be made into two sections that are connected through the hinge, guaranteed the effective domatic increasing of cat ladder, but because hinge-point is arranged on the upper surface of cat ladder, cat ladder takes up room in moving process greatly, and this process still needs by manpower, thereby influenced the equipment transport and shortcoming such as normally carry out, and can not adapt to, satisfy the needs of current production and construction.

Summary of the invention

The utility model provides a kind of novel hydraulic cat ladder, and it can solve in the prior art and be arranged on the cat ladder upper surface owing to hinge-point, make cat ladder take up room in moving process greatly, and moving process need be by defectives such as manpowers.

For addressing the above problem, the utility model is achieved by the following technical solutions:

A kind of cat ladder comprises the two sections cat ladder, and described two sections are connected through the hinge, and wherein, described hinge-point is located at the lower surface of cat ladder; The folding of described two sections cat ladder realizes by an open-and-close mechanism, this open-and-close mechanism comprises steel rope, is arranged on the pulley on the cat ladder two sections, and the set pin that is located at the hypomere cat ladder, steel rope one end links to each other with set pin, and the other end links to each other with vehicle frame by pulley.

The utility model also has following feature: described set pin is located at the hypomere cat ladder near the pulley place, and described lower end cat ladder is provided with a draw ring near the place, inclined-plane, and this draw ring links to each other with vehicle frame by short link chain.

The utility model also has following feature: described pulley is located at two ends, cat ladder hinged place.

The utility model also has following feature: described hypomere cat ladder is provided with a draw ring, and this draw ring links to each other with vehicle frame by short link chain.

Compared with prior art, advantage of the present utility model and good effect are: 1, the utility model two sectional type cat ladder, its hinge-point is located at the lower surface of cat ladder, makes the defectives such as little, taking up room of having avoided that upper turnover-tape comes is big, folding inconvenience that take up room in the assorted moving process of cat ladder.2, two sections are provided with open-and-close mechanism, make to need not that manpower is auxiliary can to make two sections cat ladders launch automatically or closed in the cat ladder lifting process, and can guarantee that cat ladder two sections cat ladders when falling to lowest part can open fully.3, pulley is located at two ends, cat ladder hinged place, and set pin is located at the hypomere cat ladder near the pulley place, is convenient to control better the tension of steel rope.4, the hypomere cat ladder is provided with a draw ring, and this draw ring links to each other with vehicle frame by short link chain, and cat ladder is remained closed.The utility model relates to novelty, and is simple in structure, easy to operate, can satisfy various mechanical equipments up and down needs voluntarily, utilize it to alleviate labor strength greatly, increase work efficiency, guarantee personal safety, the needs of transportation of adaptation equipment and production and construction are suitable for extensive employing.

Description of drawings

Fig. 1 is that cat ladder launches front view;

Fig. 2 is the folding outside drawing of cat ladder;

1, epimere cat ladder; 2, hypomere cat ladder; 3, hinge; 4, vehicle frame; 5, steel rope; 6, pulley; 7, set pin; 8, short link chain; 9, draw ring; 10, hydraulic efficiency pressure system.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.Referring to Fig. 1 and Fig. 2, a kind of cat ladder comprises the two sections cat ladder, and epimere cat ladder 1 links to each other with vehicle frame 4, and hypomere cat ladder 2 is with an inclined-plane, contacts with ground, and two sections are connected as a single entity by hinge 3, and wherein, described hinge-point is located at the lower surface of cat ladder; The folding of described two sections cat ladder realizes by an open-and-close mechanism, this open-and-close mechanism comprises steel rope 5, is arranged on the pulley 6 on the cat ladder two sections, and the set pin 7 that is located at the hypomere cat ladder, steel rope one end links to each other with set pin 7, and the other end links to each other with vehicle frame 4 by pulley.Wherein, set pin 7 is located at the hypomere cat ladder near the pulley place, and in addition, lower end cat ladder 2 is provided with a draw ring 9 near the place, inclined-plane, and this draw ring links to each other with vehicle frame 4 by short link chain 8.In the use, hydraulic efficiency pressure system 10 control down, it is auxiliary to need not manpower, can make two sections cat ladders launch automatically or closed by open-and-close mechanism, and can guarantee that cat ladder two sections cat ladders when falling to lowest part can open fully.Pulley 6 is located at two ends, cat ladder hinged place, and set pin 7 is located at the hypomere cat ladder near the pulley place, and this kind setting can be controlled the tension of steel rope better.Hypomere cat ladder 2 is provided with a draw ring 9, and this draw ring links to each other with vehicle frame 4 by short link chain 8, and cat ladder is remained closed.The utility model has alleviated labor strength greatly, increases work efficiency, and has guaranteed personal safety.

Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.

Claims

1. a cat ladder comprises the two sections cat ladder, and described two sections are connected through the hinge, and it is characterized in that: described hinge-point is located at the lower surface of cat ladder; The folding of described two sections cat ladder realizes by an open-and-close mechanism, this open-and-close mechanism comprises steel rope, is arranged on the pulley on the cat ladder two sections, and the set pin that is located at the hypomere cat ladder, steel rope one end links to each other with set pin, and the other end links to each other with vehicle frame by pulley.

2. according to the described cat ladder of claim 1, it is characterized in that: described set pin is located at the hypomere cat ladder near the pulley place.

3. according to the described cat ladder of claim 1, it is characterized in that: described pulley is located at two ends, cat ladder hinged place.

4. according to the described cat ladder of claim 1, it is characterized in that: described hypomere cat ladder is provided with a draw ring, and this draw ring links to each other with vehicle frame by short link chain.