CN203257315U

CN203257315U - Self-supported ladder

Info

Publication number: CN203257315U
Application number: CN 201320189412
Authority: CN
Inventors: 陈烁
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-10-30
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses a novel technical scheme of a ladder, provides a self-supported ladder, and belongs to the field of a working tool. The self-supported ladder can be self-supported and can also have different heights; all parts can be freely retracted, so that the operation is convenient. The content of the technical scheme is as follows: the self-supported ladder comprises a ladder rod and a supporting rod, wherein transverse threaded holes and are fixedly connected with clamping blocks are machined on outer side rod walls which are adjacent to the lower end of the ladder rod; the clamping blocks are circular and are machined with central circular holes which are concentric to the threaded holes; teeth are machined at the circumference edge parts of the outer sides of the clamping blocks; the parts which are close to one end of an arc-shaped rod-like object, namely bottom rods are fixedly connected with the same clamping block and connection unthreaded holes is machined in the bottom rods; the teeth of the two clamping blocks are opposite and a compressed spring is arranged between the teeth; a locking bolt passes through the connection unthreaded holes in the bottom rods and the threaded holes in the ladder rod to connect the bottom rods, the clamping blocks, the compressed spring and the ladder rod; one bottom rod is respectively arranged at each one of left and right sides and the two bottom rods are connected by upward arranging arc-shaped surfaces; the transverse supporting rod is connected between the two bottom rods. The design disclosed by the utility mode is applicable to various finished-product metal ladders.

Description

The self-support ladder

Technical field:

The utility model is relevant with the operation apparatus, specifically refers to ladder.

Background technology:

Family Day with or construction operation often all to use ladder, it generally is comprised of vertical two terraced bars and many horizontal struts, be hooked during use in the position fix or fixing other thing on after climbing is upper high again, but in the time of many, use the fixture that this ladder will be hooked and be inconvenient to be hooked, this like this ladder can't play a role at this time, naturally also affect people's use, think the needs that make things convenient for this apparatus of ladder can better satisfy use, must carry out some improvement, be hooked thing and still can stand and climb to a higher point even it can not relied on.

Summary of the invention:

The purpose of this utility model is the new technical scheme self-support ladder that a kind of ladder is provided, and it can solve aforesaid problem.

Theing contents are as follows of technical solutions of the utility model: it comprises terraced bar, strut, all be processed with horizontal screwed hole near the lower end of described terraced bar the outboard beam wall and be connected with fixture block, fixture block is rounded to be processed with the center hole concentric with screwed hole, fixture block is processed with teeth at the circumferential edge position in the outside, one shaft that is arcuation is also to be connected with same fixture block and to be connected the connection unthreaded hole near the end of bottom bar, aforesaid two fixture block teeth relatively and betwixt device have stage clip, one lock bolt by the connection unthreaded hole on the bottom bar and the screwed hole on the terraced bar with bottom bar, fixture block, stage clip, the ladder bar is worn and is linked up, bottom bar be about two each one and the connection that makes progress of cambered surface, also be connected with horizontal strut between two bottom bars.

The beneficial effects of the utility model are that ladder itself can be supported oneself, and different length can also be arranged, and each parts acts freely, and is easy to operate.

Description of drawings:

Fig. 1 is the left side view of the design's ladder and faces partial enlarged drawing under the state.

Among the figure, 1 is terraced bar, and 2 is strut, and 3 is bottom bar, and 4 is lock bolt, and 5 is fixture block, and 6 is stage clip.

The specific embodiment:

As shown in Figure 1, be assembled into common ladder by two terraced bars 1, several struts 2, on near the outboard beam wall the lower end of two terraced bars, all be processed with horizontal screwed hole and be connected with fixture block 5, fixture block is rounded center hole, fixture block is processed with teeth at periphery position, the garden of a side, teeth outwards are fixed on the terraced bar sidewall, and are concentric with screwed hole; Also be connected with same fixture block and be connected the connection unthreaded hole near being the end of bottom bar 3 of arcuation, the device that aforesaid two fixture block teeth are relative and be equipped with therebetween stage clip 6, one lock bolt 4 is worn bottom bar, fixture block, stage clip, terraced bar to link up by the connection unthreaded hole on the bottom bar, screwed hole on the terraced bar, bottom bar be two, about each one and the outside that is connected in terraced bar that makes progress of cambered surface, details zoomed-in view as shown in Figure 1 (ladder is in the assembled view of the terraced bar 1 of facing the left side one side under the state, fixture block 5, stage clip 6, bottom bar 3, lock bolt 4); Also being connected with strut between two foundation bars 3 uses with the strut of strengthening fastness and do when needed to climb, the relatively good storing of the bottom bar that cambered surface makes progress and steadiness are better, and the outside that is installed on terraced bar then can make it be similar to smoothly the rotation at 360 ° of angles around lock bolt; When in the time need to climbing to a higher point without suitable fixture can be hooked, needing the independent support ladder, just the as shown in the figure storing of shape, then lock lock bolt 4, under the meshing effect that is fixed in respectively two fixture blocks 5 on bottom bar 3 and the terraced bar 1, just can locate the angle of bottom bar 3 and terraced bar 1, carry out easily and effectively and reliably support use; When needing lengthened ladder bar and folding the recovery in some situation, then can at first unscrew lock bolt, the teeth of two fixture blocks break away from meshing under the elastic reaction of stage clip 6, bottom bar just can be according to the suitable position of forwarding to of needs, or increase with lengthening of terraced bar shape in alignment, or fold to the recovery of ladder front, all can arbitrarily operate.

Claims

1. self-support ladder, it comprises terraced bar, strut, it is characterized in that all being processed with horizontal screwed hole and being connected with fixture block near the outboard beam wall the lower end of described terraced bar, fixture block is rounded to be processed with the center hole concentric with screwed hole, fixture block is processed with teeth at the circumferential edge position in the outside, one shaft that is arcuation is also to be connected with same fixture block and to be connected the connection unthreaded hole near the end of bottom bar, aforesaid two fixture block teeth relatively and betwixt device have stage clip, one lock bolt by the connection unthreaded hole on the bottom bar and the screwed hole on the terraced bar with bottom bar, fixture block, stage clip, the ladder bar is worn and is linked up, bottom bar be about two each one and the connection that makes progress of cambered surface, also be connected with horizontal strut between two bottom bars.