CN103233674B - Self-support ladder - Google Patents

Abstract

The invention discloses a new technical solution of a ladder: a self-supporting ladder, which belongs to the field of work tools, which can be self-supporting, and can also have different heights. Each part can be retracted freely, and the operation is convenient. The content of the technical solution is as follows: It includes Ladder rods and struts, the outer rod walls near the lower ends of the ladder rods are all processed with horizontal threaded holes and fastened with clamping blocks, the clamping blocks are circular and processed with a central circular hole concentric with the threaded holes, and the clamping The block is processed with teeth on the peripheral part of the outside, and an arc-shaped rod-shaped object, that is, near one end of the bottom bar, is also fixedly connected with the same block and is processed with a connecting light hole. The teeth of the two blocks mentioned above are opposite and in the A compression spring is installed in the meantime, and a locking bolt connects the bottom bar, the block, the compression spring and the ladder bar through the connecting light hole on the bottom bar and the threaded hole on the ladder bar. For the upward connection of the arc, a horizontal strut is also connected between the two bottom bars. This design is suitable for various finished metal ladders.

Description

self-supporting ladder

Technical field:

The present invention relates to working equipment, specifically refers to a ladder.

Background technique:

Regardless of household daily use or construction work, ladders are often used. It is generally composed of two vertical ladder bars and multiple horizontal support bars. Climbing up, but in many cases, the fixed object to be leaned on by this kind of ladder is not convenient to lean on, so this kind of ladder cannot play a role at this time, which naturally affects people's use, so for the convenience of the ladder This appliance can better meet the needs of use, and some improvements must be carried out so that it can still stand and climb high even without relying on the support.

Invention content:

The purpose of the present invention is to provide a new technical solution self-supporting ladder of a ladder, which can solve the aforementioned problems.

The content of the technical solution of the present invention is as follows: it includes a ladder bar and a strut bar, and the outer bar wall near the lower end of the ladder bar is processed with horizontal threaded holes and fixedly connected with blocks, and the blocks are circular and processed with The central circular hole concentric with the threaded hole, the clamp block is processed with teeth on the outer circumference, and an arc-shaped rod-shaped object, that is, near one end of the bottom rod, is also fixed with the same clamp block and processed with a connecting light hole. The teeth of the aforementioned two clamping blocks face each other and a compression spring is installed between them. A locking bolt connects the bottom rod, the clamping block, the compression spring and the ladder rod through the connecting light hole on the bottom rod and the threaded hole on the ladder rod. , the bottom rods are connected with two left and right ones and the arc surface is upward, and a horizontal strut is also connected between the two bottom rods.

The beneficial effect of the invention is that the ladder itself can stand on its own, and can also have different lengths, and each part can be retracted freely, and the operation is convenient.

Description of drawings:

Figure 1 is the left side view of the design ladder and the partial enlarged view in the front view state.

Among the figure, 1 is a ladder bar, 2 is a strut, 3 is a bottom bar, 4 is a locking bolt, 5 is a block, and 6 is a stage clip.

detailed description:

As shown in Figure 1, a common ladder is assembled from two ladder rods 1 and several support rods 2, and the outer rod walls near the lower ends of the two ladder rods are processed with horizontal threaded holes and fixed blocks 5. The block is round and has a central hole. The block is processed with teeth on one side of the garden, and the teeth are fixed on the side wall of the ladder bar outwards, concentric with the threaded hole; the arc-shaped bottom bar 3 Near one end of the same block is also fixedly connected with the connecting light hole. The aforementioned two blocks have opposite teeth and a compression spring 6 is placed in the middle, and a locking bolt 4 passes through the connecting light on the bottom bar. The hole and the threaded hole on the ladder rod connect the bottom rod, clamping block, pressure spring and ladder rod. There are two bottom rods, one on the left and one on the left and one on the left, and the arc surface is upward connected to the outside of the ladder rod, as shown in Figure 1 The detailed enlarged view of the ladder (the assembly view of the ladder rod 1, the block 5, the compression spring 6, the bottom rod 3, and the locking bolt 4 on the left side of the ladder in the front view state); there is also a support between the two bottom rods 3 The pole is used to strengthen the firmness and be used as a climbing pole when needed. The bottom pole with the arc upward is better placed and more stable. It is installed on the outside of the ladder pole so that it can smoothly wind around the locking bolt approximately 360 degrees. ° angle of rotation; when there is no suitable fixed object to lean on and needs to climb up, that is, when the ladder needs to be supported independently, it can be placed as shown in the figure, and then the locking bolts 4 are locked, and they are respectively fixed on the bottom The angle between the bottom bar 3 and the ladder bar 1 will be positioned under the tooth cooperation between the bar 3 and the two blocks 5 on the ladder bar 1, and the support is convenient, effective and reliable; when the ladder bar needs to be lengthened in some cases When folded and recovered, the locking bolt can be unscrewed at first, and the teeth of the two clamping blocks are disengaged under the elastic action of the compression spring 6, and the bottom bar can be turned to an appropriate position as required, or formed with the ladder bar. It can be extended in a straight line, or folded to the front of the ladder for recovery, all of which can be operated at will.

Claims (1)

1. A self-supporting ladder, which comprises a ladder bar and a strut, is characterized in that the outer bar wall near the lower end of the ladder bar is processed with horizontal threaded holes and is fixedly connected with a block, and the block is circular A center hole concentric with the threaded hole is processed, and the clamp block is processed with teeth on the outer circumference. An arc-shaped rod-shaped object, that is, near one end of the bottom rod, is also fixed with the same clamp block and processed with a connecting light. Holes, the teeth of the aforementioned two blocks are opposite and there is a compression spring installed therebetween. A locking bolt passes through the connecting light hole on the bottom bar and the threaded hole on the ladder bar to pass through the bottom bar, the block, the compression spring, and the ladder bar. Connected together, the bottom rods are two left and right ones with an upward arc connected, and a horizontal strut is also connected between the two bottom rods.