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Hook components for stairs

A component and ladder frame technology, which is applied in the direction of ladders, buildings, building structures, etc., can solve the problem of not being able to better solve the problem of safety hooking of elongated ladders, and achieve the advantages of simple structure, low material consumption, and simplified manufacturing process Effect

Active Publication Date: 2010-10-20
TIANJIN JINMAO GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The known technology cannot better solve the problem of safe hooking of the auxiliary ladder and the main ladder of the extended ladder, especially the simple structure, low manufacturing cost, safe and reliable hooking device is the expectation of the industry

Method used

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  • Hook components for stairs
  • Hook components for stairs
  • Hook components for stairs

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Embodiment Construction

[0026] Below in conjunction with preferred embodiments, the specific implementation, features and effects provided by the present invention are described in detail as follows; for the purpose of simplicity and clarity, the description of known technologies is appropriately omitted below to avoid unnecessary details Affect the description of this technical solution.

[0027] Such as Figure 1-3 As shown, a hook assembly for a ladder includes a hook body 2 combined with the main ladder, wherein the hook body is composed of a mounting part 21 combined with the main ladder frame 4 and a hook body part 22 extending to the side of the auxiliary ladder; The mounting part 21 of the hook body has a mounting surface 210 that can be matched with the main ladder frame, such as figure 1 It shows the situation that the installation surface of the installation part coincides with the surface of the inner edge of the main ladder frame, but it is not limited to this. The installation surface ...

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Abstract

The invention relates to a ladder-used hook component, pertaining to the ladder accessory field, in particular to a hook device used for folding a major ladder and a minor ladder of an elongated ladder. The ladder-used hook component comprises a hook body combined with the major ladder, wherein, the hook body is composed of an installation part fixedly arranged with a ladder frame and a hook bodypart stretching towards one side of the minor ladder; the installation part is provided with an installation surface which can be assembled with the major ladder in an anastomosis manner; a locking arm is arranged in the hook body part in a mode that the locking arm can directly lean against the upper part of a ladder rung and lock the ladder rung. Due to the reasonable construction of the locking arm and a holding groove of the hook body, the ladder-used hook component can hold the ladder rung of the minor ladder tightly, therefore the elongated ladder is more reliable, safer and convenient for application; the arrangement structure of the hook body part is simple, therefore the folded minor ladder is more convenient for being hooked and mounted; and the strengthening tie rod is arranged, therefore the safety of the hook body is further provided.

Description

technical field [0001] The invention belongs to the field of ladder accessories, and in particular relates to a hook device for connecting the main ladder and the auxiliary ladder of an extended ladder. Background technique [0002] Known technology, such as the published Chinese patent 200620152226.4, is a retractable H-shaped single ladder, which involves folding the H-shaped single ladder into a smaller volume structure, which includes ladder frames and ladder rungs parallel to each other, wherein the ladder frame It is connected with each ladder rung through a pivot to form a linkage structure. The ladder frame has a channel for the ladder rung to lie in, and the connection between the ladder frame and the ladder rung has a pivot to assemble the ladder rung Pivot mounting holes for the ladder frame. The two ends of the ladder rods of each level are matched with the joints of the ladder frame to set the pivot mounting holes for the ladder rods. [0003] Another example i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06C7/00E06C7/06
Inventor 吕淑华
Owner TIANJIN JINMAO GROUP
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