Office chair and seat five-star foot (disc or claw) capable of being assembled, folded and unfolded
By designing a five-star leg structure that can be assembled, folded and expanded, and using the air pressure lifting rod casing and clamp connection, it can realize freehand operation, which solves the problem of inability to assemble and folded in the existing technology, realizes compression of storage and transportation space and structural stability, and is suitable for office chairs and seats.
Patent Information
- Application Number
- CN202511033406.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2025-08-22
AI Technical Summary
Most of the existing office chairs and seat bearing feet (disks or claws) use fixed structures and cannot be assembled, folded or unfolded, resulting in large storage and transportation space and inconvenient maintenance.
A five-star leg structure that can be assembled, folded and expanded is designed. Through the combination of the air pressure lifting rod sleeve, screw through-hole clamp and limit hole, it can realize free-hand assembly and folding and expansion. It uses the screw through-hole of the rear end of the chair foot to connect the clip of the air pressure lifting rod sleeve to achieve rapid assembly and folding.
Assembly and discounting can be completed without tools, reducing storage and transportation costs, simplifying use and maintenance, compact and stable structure, suitable for office chairs and seat loads.
Smart Images

Figure CN120514213A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of feet (plates or claws) used for supporting office chairs and seats, and in particular to a five-star foot (plate or claw) for office chairs and seats that can be assembled, folded, and deployed. The present invention relates to the technical field of feet (plate or claw) used for supporting office chairs and seats, and in particular to a five-star foot (plate or claw) for office chairs and seats that can be assembled, folded, and deployed. Background Art
[0002] Existing office chair and chair support legs (plates or claws) are mostly fixed structures and cannot be assembled, folded, or unfolded. Compared with existing technologies, the five-star legs (plates or claws) for office chairs and chairs that can be assembled, folded, and unfolded have significant advantages: no tools are required, and manual assembly is required, simplifying use and maintenance. The folding and unfolding design of the chair legs significantly reduces storage and transportation space, reducing costs and increasing efficiency. The compact and stable structure is suitable for office chairs and chairs, and has market application value. Summary of the Invention
[0003] The purpose of the present invention is to provide an office chair and a five-star seat foot (plate or claw) that can be assembled, folded and unfolded. Its structural design allows users to complete the assembly, folding and unfolding of the chair feet by hand without the aid of any installation tools, thereby significantly reducing storage and transportation costs.
[0004] The present invention can assemble, fold and unfold an office chair and a five-star foot (plate or claw) of the chair, and includes the following structures: Pneumatic lifting rod sleeve (111), screw through hole clamp (112), limit hole (113); The rear end of the chair leg (222) is provided with a screw through hole (223), and the front end is provided with a caster mounting hole (224).
[0005] During assembly, the rear screw hole (223) of the chair leg (222) is positioned and connected to the clip (112) of the gas pressure lifting rod sleeve (111) through a flat head pin with a hole. At this time, the chair leg (222) can be folded inward by hand. When in use, the chair leg (222) can be unfolded outward by hand and placed on the ground to serve as a supporting foot (plate or claw) for an office chair or seat.
[0006] The rear end screw through hole (223) of the chair leg (222) and the clamp (112) of the pneumatic lifting rod sleeve (111) are positioned and connected via a flat-head pin with a hole, thereby achieving rapid assembly of the chair leg.
[0007] The limiting hole (113) of the pneumatic lifting rod sleeve (111) serves as a space and a limiting device for the chair legs (222) to be folded and unfolded.
[0008] The innovation of the above-mentioned office chairs and five-star feet (plates or claws) that can be assembled, folded and unfolded is that they do not require tools and can be assembled by hand, simplifying use and maintenance; the design of the chair legs that can be folded and unfolded greatly reduces storage and transportation space, reducing costs and increasing efficiency; the structure is compact and stable, suitable for the load-bearing capacity of office chairs and seats, and has market application value. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the main body of the office chair and the five-star feet (plates or claws) of the chair that can be assembled, folded and unfolded according to the present invention; Figure 2 It is a schematic structural diagram of the office chair and the five-star feet (plates or claws) of the chair that can be assembled, folded and unfolded according to the present invention; Figure 3 It is a schematic diagram of the folding angle of the office chair and the five-star feet (plates or claws) of the chair that can be assembled, folded and unfolded according to the present invention; Figure 4 Schematic diagram of the unfolding angle of the office chair and the five-star feet (plates or claws) of the chair that can be assembled, folded and unfolded according to the present invention; Description of the accompanying drawings: 111 - pneumatic lifting rod sleeve, 112 - clamp with screw through hole, 113 - limiting hole, 222 - chair leg, 223 - screw through hole for chair leg, 224 - caster mounting hole for chair leg. DETAILED DESCRIPTION
[0010] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0011] Implementation Case 1: See Figures 1 to 4 As shown, the present invention includes a pneumatic lifting rod sleeve (111), a clamp with a screw hole (112), and a limit hole (113); the rear end of the chair leg (222) is provided with a screw hole (223), and the front end is embedded with a caster mounting hole (224). During assembly, the screw hole (223) at the rear end of the chair leg (222) is positioned and connected with the clamp (112) of the pneumatic lifting rod sleeve (111) through a flat-head pin with a hole. At this time, the chair leg (222) can be folded inward by hand. When in use, the chair leg (222) can be unfolded outward by hand and placed on the ground, and it can be used as a five-star foot (plate or claw) for an office chair or a seat.
[0012] Finally, it should be noted that although specific embodiments of the present invention have been shown and described, those skilled in the art should understand that these embodiments are only used to illustrate the technical solutions of the present invention and do not constitute a limitation on its scope. Without departing from the core principles and spirit of the present invention, any modification, replacement, improvement, etc. of the above-mentioned embodiments shall fall within the scope of protection of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents, and any equivalent designs and improvements made within the scope of the claims shall be covered by the technical solutions of the present invention.
Claims
1. The office chair and the five-star feet (plate or claw) can be assembled, folded and unfolded, and the characteristics are: The invention comprises a gas pressure lifting rod sleeve (111), a clamp with a screw through hole (112), and a limit hole (113); the rear end of the chair leg (222) is provided with a screw through hole (223), and the front end is embedded with a caster mounting hole (224). During assembly, the screw through hole (223) at the rear end of the chair leg (222) and the clamp (112) of the gas pressure lifting rod sleeve (111) are positioned and connected by a flat head pin with a hole.
2. At this time, the chair legs (222) can be folded inwards by hand. When in use, the chair legs (222) can be unfolded outwards by hand and placed on the ground to serve as the five-star legs (plates or claws) of an office chair or a seat.
3. The office chair and chair five-star feet (plates or claws) that can be assembled, folded and unfolded according to claim 1 are characterized by: The rear end screw through hole (223) of the chair leg (222) and the clamp (112) of the pneumatic lift rod sleeve (111) are positioned and connected by a flat-head pin with a hole, which is convenient for manual assembly.
4. The assemblable, foldable and unfoldable office chair and chair five-star feet (plates or claws) according to claim 1, characterized in that: The limiting hole (113) of the pneumatic lifting rod sleeve (111) provides space and a limiting function for folding and unfolding.
5. The assemblable, foldable and unfoldable office chair and chair five-star feet (plates or claws) according to claim 1, characterized in that: A caster mounting hole (224) is embedded in the front end of the chair leg (222), facilitating quick installation and use of the caster.