CN2041724U

CN2041724U - Portable multipurpose ladder

Info

Publication number: CN2041724U
Application number: CN 88218274
Authority: CN
Inventors: 宋辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-08-12
Filing date: 1988-08-12
Publication date: 1989-07-26

Abstract

The utility model discloses a portable multipurpose ladder, which comprises more than two ladder frames and a folding mechanism mounted among the ladder frames. By adopting the structural style, the utility model can be used as a 'yi'-shaped ladder, a 'y'-shaped ladder and a temporary scaffolding. When not in use, the portable multipurpose ladder can be folded for transportation and storage. When in use, the portable multipurpose ladder can be opened quickly and easily. Thus, the purposes of convenient portability and multiple uses can be achieved.

Description

Portable multipurpose ladder

The utility model relates to a kind of portable multi-purpose ladder that is suitable for ascend operation.

The ladder of ascending a height that uses now all can only a terraced usefulness, and thick heaviness, moves and collect very inconvenient, results in hand cramps to the user, and it is far from suitable for the indoor and outdoor ascend operation that day by day increases.

This is suitable for novel purpose and is to provide a kind of collapsible, portable multipurpose ladder.

The method that the utility model is finished is: pass through lock between ladder, the fold mechanism connection that is contained in the bolt on the lock and forms around the locking closure that bolt rotates.

The utlity model has following advantage: 1. multipurpose, he not only can make yi shaped ladder, double ladder uses, and also can make interim scaffold and use; 2. collapsible, the time spent can not fold, so that move and collect, that the time spent again can be quick, easy draws back; 3. safe and reliable, designed with this ladder the simple and easy key that need use when folding, have only the key of use after, this ladder could be folded up, so just guaranteed the safety of this ladder use.

Accompanying drawing 1 is an overall structure schematic diagram of the present utility model, the schematic diagram when accompanying drawing 2 is made scaffold for the utility model.Schematic diagram when accompanying drawing 3 is yi shaped ladder, the schematic diagram when accompanying drawing 4 is double ladder, accompanying drawing 5 is the fold mechanism schematic diagram.

The utility model will be further described below in conjunction with accompanying drawing: couple together by fold mechanism (2) between the ladder that metal material is made, make between the two adjacent ladders and can fold mutually, the quantity of ladder can be determined as required, fold mechanism (2) is by lock (5), locking closure (7) composition that is contained in the bolt (6) on the lock and rotates around bolt, the shell of lock (5) is provided with open hole (13) and locating hole (11), compression spring (8) is housed in its cavity, the mortise lock pin (9) of fixing spring and snap close (10), latch passes spring one end and is fixed on the lock, the other end is enclosed within the jack (12) with the snap close of locating hole (11) adapted, one end of brace (16) is fixed on the outside of locking closure, and can rotate around fixed point, the other end of brace is provided with spill (19), with fixed leg (17) adapted on the lock outside, locking closure (7) be provided with the lock hole (14) of snap close adapted and with lock on the connecting hole (15) of bolt adapted, being surrounded by its effect of round pin (18) that rubber makes at the ladder end that contacts with bearing surface is to prevent that ladder from sliding, for enough intensity is arranged, ladder, fold mechanism can be made with aluminium alloys and steel, ladder can be connected by nut with fold mechanism, also can rivet.When doing the yi shaped ladder use, catch two adjacent ladders, draw back, up to stretching with hand, at this moment, snap close on the lock and the engagement of the lock hole on the locking closure, fold mechanism locking, remaining ladder,, locking stretching respectively with above-mentioned same method, stretching up to whole ladder, till the locking; When doing the double ladder use, on the middle fold mechanism of locating of whole ladder stretching, locking, insert open hole with simple and easy cylindrical key, push hard slightly, make snap close withdraw from lock hole, the rotation locking closure has a certain degree ladder symmetry folding, puts to stand on the bearing surface, to open with rope or connecting rod and to put the ladder that stands on the bearing surface and hold, ladder is opened; When making scaffold and using, can with key stretching, the fold mechanism symmetry of locking ladder at the certain-length place be converted into the right angle according to actual needs, put and stand on the bearing surface, fix, can use by being contained in brace on the locking closure and the fixed leg on the lock.

Claims

1, a kind of portable multi-purpose ladder comprises plural ladder [1], it is characterized in that passing through lock [5] between the ladder, is contained in the bolt [6] on the lock, and the fold mechanism of being formed around the locking closure [7] of bolt rotation [2] connects.

2, multipurpose ladder according to claim 1, the shell that it is characterized in that lock (5) is provided with open hole (13) and locating hole (11), compression spring (8) is housed in the cavity, the latch of fixing spring (9) passes spring, one end is fixed on the lock, the other end is enclosed within the jack (12) with the snap close (10) of locating hole adapted, and fixed leg (17) is contained on the outside of lock.

3, multipurpose ladder according to claim 1, it is characterized in that locking closure (7) is provided with and the lock hole (14) of snap close (10) adapted, connecting hole (15) with bolt adapted on the lock, one end of brace (16) is fixed on the outside of locking closure, and can rotate around fixed point, the other end is provided with spill (19).

4, multipurpose ladder according to claim 1 is characterized in that the ladder end that contacts with bearing surface is surrounded by the round pin (18) that rubber is made.

5, multipurpose ladder according to claim 1 is characterized in that ladder, fold mechanism make with metal material.