CN2617908Y

CN2617908Y - Ladder with hook

Info

Publication number: CN2617908Y
Application number: CN 03230427
Authority: CN
Inventors: 孙财平; 白迎成
Original assignee: SHANGHAI WUJIN FIRE EQUIPMENT CO Ltd
Current assignee: SHANGHAI WUJIN FIRE EQUIPMENT CO Ltd
Priority date: 2003-04-17
Filing date: 2003-04-17
Publication date: 2004-05-26
Anticipated expiration: 2013-04-17

Abstract

The utility model relates to a hook ladder, comprising a ladder body and a hook arranged on one end of the ladder body. The utility model is characterized in that the gripping hook is an arc-shaped hook. The utility model is simple in structure, convenient for using, reliable and safe and is not influenced by the material and shape of suspenders. The utility model can be applied to various wood or new type of steel, aluminum, plastic suspenders such as building doors and windows, balconies, fences, canopies, beams.

Description

Hook ladder

One, technical field

The utility model is a kind of apparatus, and it relates to a kind of people of being convenient to ladder up and down, specially refers to the hook ladder that a kind of fire fighter of being convenient to uses in rescue work of extinguishing fire.

Two, technical background

Hook ladder has been used decades in China's fire brigade, it has become one of apparatus equipment that fire fighting truck must join.At present the hook ladder that uses mainly constitutes by terraced body with at the single straight hook that has broached-tooth design of terraced body one end setting.This hook ladder was once brought into play certain effect owing to simple in structure, easy to use in rescue work of extinguishing fire.But along with advancing of epoch, the progress of science and technology, constructional materialss such as some new shaped steel, aluminium, plastics, building structure body have obtained using widely, there is following point in actual use in existing hook ladder: (1) is for the straight hook of broached-tooth design, its optimized suspension supporter is smooth wood materials, but the door and window of wood materials is fewer and feweri now, and this has just influenced hook ladder and has hung firm degree, causes safety in utilization to reduce.(2) because it is single hook and straight hook structure, and the fire fighter is in climbing, under not protecting, very unstable, coming off easily causes the accident.(3) same because be the reason of straight hook structure, the scantling of hanger is required than higher, and in actual use, the situation complexity, but the width of hanger differ, gage distortion, height do not wait, and be uneven, and the scope of application of hook ladder is dwindled greatly.

Three, summary of the invention

The purpose of this utility model just is to overcome the shortcoming of prior art, provide a kind of not only simple in structure, easy to use, and the scope of application is extensive, safer hook ladder.

The purpose of this utility model is achieved in that a kind of hook ladder, is made of terraced body and the hook that is located at the one end, it is characterized in that: link up with and be a kind of arc shaped hook.

The feature of above-mentioned hook ladder also is: arc shaped hook is the double hook that is located at terraced body one end both sides; The span of arc shaped hook is generally to be advisable greater than the about 40cm of 35cm.

The present utility model compared with prior art, it is simple to remove structure, easy to use outside, also have following advantage: (1) has increased the suspension safety factor greatly because hook is arc double hook structure, has increased the stability after hanging.(2) since the span of hook about 40cm, and at present construction wall thickness generally all in 24～35cm.Therefore it satisfies the needs of the suspension body of different-thickness.It can be widely used in the hangers such as door, window, balcony, enclosure wall, awning, crossbeam of building materials such as new shaped steel, aluminium, plastics building.

Below in conjunction with accompanying drawing, further set forth concrete enforcement of the present utility model.

Four, description of drawings

Accompanying drawing is a kind of structural representation of the present utility model.

Five, the specific embodiment

See also accompanying drawing, be not difficult to find out from figure, the utility model is made of terraced body (1) and the hook (2) that is located at the one end, and it is characterized in that: hook (2) is a kind of arc shaped hook; Hook (2) can be single hook, also can be double hook or many hooks, and is wherein suitable with the double hook shown in scheming.Because the thickness of modern buildings in general is in 24～35cm, therefore the arc end span degree of hook (2) is advisable about 40cm generally with greater than 35cm.(too big: as may to produce in the use and rock.Too little: it is not handy again to run into the big building of thickness.The actual verification span is that the 40cm size is preferable)

Claims

1, a kind of hook ladder is made of terraced body (1) and the hook (2) that is located at the one end, and it is characterized in that: hook (2) is a kind of arc shaped hook.

2, hook ladder as claimed in claim 1 is characterized in that: hook (2) is a kind of double hook that is located at terraced body (1) one end both sides.

3, hook ladder as claimed in claim 1 or 2 is characterized in that: the span of hook (2) is generally with greater than 35cm, and about 40cm is advisable.