Unwelded combined folding stool

Abstract

The invention discloses an unwelded combined folding stool. The unwelded combined folding stool comprises a front support, a rear support and a connection shaft. The middles of the front support and the rear support are provided with connection holes. The connection shaft goes through the connection holes and connects the front support and the rear support. The connection shaft is a high strength screw and is provided with a self-locking nut. A surface belt is arranged between the front support and the rear support. The unwelded combined folding stool also comprises a backrest. The backrest comprises a backrest frame and a back belt, a connection part of the backrest is movably connected to the rear support, an opening part of the backrest is provided with a spacing head, through the spacing head, the backrest is fixed, and a force bearing point is reinforced by round steel. The back belt and the surface belt are prepared from an automobile safety belt material and are comfortable and ventilated. The unwelded combined folding stool is made by a two-step cold bending molding method, has ultimate curvature, small radian, full touchdown effect and high stability, does not adopt a welding method, is strong, firm, durable, delicate, light, portable, safe and reliable, is prepared by a special-purpose folding stool making machine and is suitable for household income increasing, large-scale production, and has advantages of low cost and wide purpose.

Description

Technical field: [0001] The invention belongs to the field of life, and relates to a high-strength and durable folding stool with a backrest, in particular to a non-welding combined folding stool. Background technique: [0002] Folding stools originally came from Mazar, and they are convenient seats for travelers. At first, they were made of cowhide and wooden strips. The wooden strips were made into a rectangular frame, and then the cowhide was nailed to it with rivets. It can be folded. Its advantages are small and convenient. Carry, but the disadvantages are also obvious. Cowhide is not easy to process, wood is easy to rot, and the production cost is high. Such a horse has edges and corners on both sides, which is not very safe to use and carry. In order to overcome the above shortcomings, plastic folding stools have appeared, but the plastic folding stools have low strength, short service life, and are easy to break. There have also been folding stools made of steel bars...

AI Technical Summary

Problems solved by technology

[0002] Folding stools originally came from Mazar, and they are convenient seats for travelers. At first, they were made of cowhide and wooden strips. The wooden strips were made into a rectangular frame, and then the cowhide was nailed to it with rivets. It can be folded. Its advantages are small and convenient. Carry, but the disadvantages are also obvious. Cowhide is not easy to process, wood is easy to rot, and the production cost is high. Such a horse has edges and corners on both sides, which is not very safe to use and carry.

In order to overcome the above shortcomings, plastic folding stools have appeared, but the plastic folding stools have low strength, short service life, and are easy to break. There have also been folding stools made of steel bars, but the folding stools made of steel bars are heavy and inconvenient to carry. Although the folding stool is made, there is a problem. No matter what material is used for the hollow tube, the strength at the bending point is not enough, and it is easy to be destroyed, and there is also the problem of not being resistant to wear at the joint of the parts. The lengthening of the use time will cause serious wear and tear at the joints, and it will be easily damaged. In addition, the existing folding stools are made of ordinary chemical fiber materials, which are not strong enough and tough, and are easy to break, causing injuries to users; folding stools have no backrests. If used for a long time, people will feel uncomfortable, which is not ergonomic; in terms of materials, if the folding stool is made of metal materials, it needs to be welded, and welding requires professionals, which requires high production personnel and is not conducive to mass production. , the welded joints are prone to cracking

Images