Welding-free sheet metal chair
The sheet metal chair, designed without welding, uses sheet metal bending and fastener connection, which solves the problems of high energy consumption and environmental pollution caused by welding processes, and achieves environmentally friendly and efficient assembly and production.
Patent Information
- Application Number
- CN202423228636.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing welding process for outdoor seating is energy-intensive, has a long production cycle, and is harmful to employee health and the environment.
The design employs a weld-free approach, assembling seat components, including the right armrest, left armrest, backrest, and seat, through sheet metal bending and fastener connection, using screws instead of welding.
Reduce energy consumption, reduce light and smoke pollution, improve assembly efficiency, reduce production costs, and enhance product competitiveness.
Smart Images

Figure CN223585512U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of seat, especially relate to a no welding sheet metal chair. BACKGROUND
[0002] The existing outdoor seat mostly adopts the welding process to splice the parts, and still needs the polishing process to process the burrs of the welding position after the welding is completed. The two processes of welding and polishing not only have high energy consumption and long production cycle, but also have higher skill requirement to the employees, and high temperature, sparks and harmful gas are generated in the operation process, which greatly influences the physical and mental health of the employees and the environment. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at providing a no welding sheet metal chair to solve the above technical problems.
[0004] To achieve the above purpose, the specific technical scheme of the no welding sheet metal chair of the utility model is as follows:
[0005] A no welding sheet metal chair, which comprises a right armrest assembly, a left armrest assembly, a back plate assembly, a seat plate assembly and a seat plate support assembly, the right armrest assembly and the left armrest assembly are fixed with the seat plate assembly and the back plate assembly through fasteners respectively, the seat plate support assembly and the seat plate assembly are fixed through fasteners, the right armrest assembly comprises a right armrest pipe, a right armrest cross pipe and a right armrest support fixing block, the right armrest pipe is formed into an arch shape by bending a sheet metal part, and the right armrest pipe and the right armrest cross pipe are fastened and connected through the right armrest support fixing block; the left armrest assembly comprises a left armrest pipe, a left armrest cross pipe and a left armrest support fixing block, the left armrest pipe is formed into an arch shape by bending a sheet metal part, and the left armrest pipe and the left armrest cross pipe are fastened and connected through the left armrest support fixing block.
[0006] Further, the right armrest support fixing block is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the right armrest support fixing block is fixedly connected with the inner side of one side of the right armrest pipe through a fastener, one end of the right armrest cross pipe is sleeved into the other side of the right armrest support fixing block, and a fastener passes through the lower end of the right armrest cross pipe to fix the right armrest cross pipe and the right armrest support fixing block.
[0007] Further, the left armrest support fixing block is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the left armrest support fixing block is fixedly connected with the inner side of one side of the left armrest pipe through a fastener, one end of the left armrest cross pipe is sleeved into the other side of the left armrest support fixing block, and a fastener passes through the lower end of the left armrest cross pipe to fix the left armrest cross pipe and the left armrest support fixing block.
[0008] Further, the back plate assembly comprises a back pipe, a back decoration pipe and a back plate fixing block, the back pipe is formed into an arch shape by bending a sheet metal part, and the back decoration pipe is fixedly connected with the back pipe through the back plate fixing block.
[0009] Further, the back decoration pipe has a plurality of.
[0010] Further, the back plate fixing block is an L-shaped fixing member with a fixing hole on the upper surface, one side of the back plate fixing block is fixedly connected to the inner side of one side of the back pipe through a fastener, and one end of the back decoration pipe is sleeved into the other side of the back plate fixing block, and the fastener penetrates the lower end of the back decoration pipe to fix the back decoration pipe and the back plate fixing block.
[0011] Further, the lower end of the back pipe has a mounting hole, the inner side of the right armrest horizontal pipe has a back plate mounting hole one, the inner side of the left armrest horizontal pipe has a back plate mounting hole two, the back plate assembly is fixedly connected with the right armrest assembly through fasteners penetrating the mounting hole of the back pipe and the back plate mounting hole one of the right armrest horizontal pipe, and the back plate assembly is fixedly connected with the left armrest assembly through fasteners penetrating the mounting hole of the back pipe and the back plate mounting hole two of the left armrest horizontal pipe.
[0012] Further, the seat plate assembly is a sheet metal plate with edges folded downward around the periphery, the armrest mounting holes are formed in the folded edges on the two sides, the inner side of the right armrest pipe has a seat plate mounting hole one, the inner side of the left armrest pipe has a seat plate mounting hole two, the seat plate assembly and the right armrest assembly are fixedly connected through fasteners penetrating the armrest mounting holes and the seat plate mounting hole one of the seat plate assembly, and the seat plate assembly and the left armrest assembly are fixedly connected through fasteners penetrating the armrest mounting holes and the seat plate mounting hole two of the seat plate assembly.
[0013] Further, the seat plate support assembly comprises two support pipe members which are formed into an arc-shaped structure by bending sheet metal members, are oppositely arranged, are connected in the middle through fasteners, and are fixed to the inner sides of the folded edges of the seat plate assembly at two ends through fasteners, so as to strengthen the strength of the seat plate assembly.
[0014] Further, the fastener is a screw.
[0015] The welding-free sheet metal chair has the following advantages: the chair is divided into a left armrest assembly, a right armrest assembly, a back plate assembly, a seat plate assembly and a seat plate support assembly, the seat plate is made through sheet metal processing, the structure is simple, atmospheric and environmentally friendly, the screw connection is used instead of welding process, the consumption of energy is reduced, light pollution and smoke pollution are also reduced, and the chair is more environmentally friendly. Meanwhile, the chair is assembled quickly, the installation efficiency is improved, the production cost is reduced, and the product competitiveness is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the welding-free sheet metal chair.
[0017] Figure 2 It is an exploded structure schematic view of the welding-free sheet metal chair.
[0018] Figure 3It is right armrest cross pipe and right armrest pipe installation schematic view;
[0019] Figure 4 It is Figure 2 B at the connecting structure schematic view;
[0020] Marked in the figure: 1, right armrest assembly;1-3, right armrest pipe;1-1, right armrest cross pipe;1-2, right armrest support fixed block;1-4, seat plate mounting hole one;1-5, back plate mounting hole one;2, left armrest assembly;2-3, left armrest pipe;2-1, left armrest cross pipe;2-2, left armrest support fixed block;2-4, seat plate mounting hole two;2-5, back plate mounting hole two;3, back plate assembly;3-3, back pipe;3-1, back decorative pipe;3-2, back plate fixed block;3-4, mounting hole;4, seat plate assembly;4-1, armrest mounting hole;5, seat plate support assembly. DETAILED DESCRIPTION
[0021] In order to better understand the purpose, structure and function of the utility model, the utility model a kind of welding sheet metal chair is further described in detail below with the drawings.
[0022] As Figures 1-4 Indicated, the utility model a kind of welding sheet metal chair, including right armrest assembly 1, left armrest assembly 2, back plate assembly 3, seat plate assembly 4 and seat plate support assembly 5, right armrest assembly 1 and left armrest assembly 2 are fixed with seat plate assembly 4, back plate assembly 3 by fastener respectively, and seat plate support assembly 5 and seat plate assembly 4 are fixed by fastener.
[0023] Right armrest assembly 1 includes right armrest pipe 1-3, right armrest cross pipe 1-1 and right armrest support fixed block 1-2, right armrest pipe 1-3 is formed by bending sheet metal piece and is in the shape of arch, right armrest support fixed block 1-2 is L type fixed piece, with fixed hole on top, and right armrest support fixed block 1-2 one side is fixedly connected with the inner side of right armrest pipe 1-3 one side by fastener, and one end of right armrest cross pipe 1-1 is sleeved into the other side of right armrest support fixed block 1-2, and fastener passes through the lower end of right armrest cross pipe 1-1, to fix right armrest cross pipe 1-1 with right armrest support fixed block 1-2.
[0024] Left armrest assembly 2 includes left armrest pipe 2-3, left armrest cross pipe 2-1 and left armrest support fixed block 2-2, left armrest pipe 2-3 is formed by bending sheet metal piece and is in the shape of arch, left armrest support fixed block 2-2 is L type fixed piece, with fixed hole on top, and left armrest support fixed block 2-2 one side is fixedly connected with the inner side of left armrest pipe 2-3 one side by fastener, and one end of left armrest cross pipe 2-1 is sleeved into the other side of left armrest support fixed block 2-2, and fastener passes through the lower end of left armrest cross pipe 2-1, to fix left armrest cross pipe 2-1 with left armrest support fixed block 2-2.
[0025] The back plate assembly 3 comprises a back pipe 3-3, a back decorative pipe 3-1 and a back plate fixing block 3-2, the back pipe 3-3 is formed into an arch shape by bending a sheet metal part, the back decorative pipe 3-1 has a plurality of strips, the back decorative pipe 3-1 is fixedly connected with the back pipe 3-3 through the back plate fixing block 3-2, the back plate fixing block 3-2 is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the back plate fixing block 3-2 is fixedly connected with the inner side of one side of the back pipe 3-3 through a fastener, one end of the back decorative pipe 3-1 is sleeved into the other side of the back plate fixing block 3-2, and the back decorative pipe 3-1 is fixed with the back plate fixing block 3-2 through the fastener penetrating the lower end of the back decorative pipe 3-1.
[0026] The lower end of the back pipe 3-3 has a mounting hole 3-4, the inner side of the right handrail horizontal pipe 1-1 has a back plate mounting hole one 1-5, the inner side of the left handrail horizontal pipe 2-1 has a back plate mounting hole two 2-5, the back plate assembly 3 is fixedly connected with the right handrail assembly 1 through the fastener penetrating the mounting hole 3-4 of the back pipe 3-3 and the back plate mounting hole one 1-5 of the right handrail horizontal pipe 1-1, and the back plate assembly 3 is fixedly connected with the left handrail assembly 2 through the fastener penetrating the mounting hole 3-4 of the back pipe 3-3 and the back plate mounting hole two 2-5 of the left handrail horizontal pipe 2-1.
[0027] The seat plate assembly 4 is a sheet metal plate, the periphery is turned down, the handrail mounting holes 4-1 are formed on the turned-down edges of the two sides, the inner side of the right handrail pipe 1-3 has a seat plate mounting hole one 1-4, the inner side of the left handrail pipe 2-3 has a seat plate mounting hole two 2-4, the seat plate assembly 4 and the right handrail assembly 1 are fixedly connected through the fastener penetrating the handrail mounting holes 4-1 of the seat plate assembly 4 and the seat plate mounting hole one 1-4, and the seat plate assembly 4 and the left handrail assembly 2 are fixedly connected through the fastener penetrating the handrail mounting holes 4-1 of the seat plate assembly 4 and the seat plate mounting hole two 2-4.
[0028] The seat plate support assembly 5 comprises two support pipe parts, the two support pipe parts are formed into an arc structure by bending sheet metal parts, are oppositely arranged, are connected through a fastener in the middle, and are fixedly connected with the inner sides of the turned-down edges of the seat plate assembly 4 through fasteners at two ends, so as to strengthen the strength of the seat plate assembly 4.
[0029] Preferably, the fastener is a screw.
[0030] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the utility model without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of protection of the utility model.
Claims
1. A weldless sheet metal chair comprising a right armrest assembly (1), a left armrest assembly (2), a backrest assembly (3), a seat plate assembly (4) and a seat plate support assembly (5), characterized in that, The right armrest assembly (1) and the left armrest assembly (2) are fixed with the seat plate assembly (4) and the back plate assembly (3) through fasteners, the seat plate support assembly (5) and the seat plate assembly (4) are fixed through fasteners, the right armrest assembly (1) comprises a right armrest tube (1-3), a right armrest horizontal tube (1-1) and a right armrest support fixing block (1-2), the right armrest tube (1-3) is formed into an arch shape by bending a sheet metal part, and the right armrest tube (1-3) and the right armrest horizontal tube (1-1) are fixedly connected through the right armrest support fixing block (1-2); the left armrest assembly (2) comprises a left armrest tube (2-3), a left armrest horizontal tube (2-1) and a left armrest support fixing block (2-2), the left armrest tube (2-3) is formed into an arch shape by bending a sheet metal part, and the left armrest tube (2-3) and the left armrest horizontal tube (2-1) are fixedly connected through the left armrest support fixing block (2-2).
2. The weldless tub chair of claim 1, wherein, The right armrest support fixing block (1-2) is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the right armrest support fixing block (1-2) is fixedly connected with the inner side of one side of the right armrest tube (1-3) through a fastener, one end of the right armrest horizontal tube (1-1) is sleeved into the other side of the right armrest support fixing block (1-2), and a fastener penetrates the lower end of the right armrest horizontal tube (1-1) to fix the right armrest horizontal tube (1-1) and the right armrest support fixing block (1-2).
3. The weldless tub chair of claim 1, wherein, The left armrest support fixing block (2-2) is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the left armrest support fixing block (2-2) is fixedly connected with the inner side of one side of the left armrest tube (2-3) through a fastener, one end of the left armrest horizontal tube (2-1) is sleeved into the other side of the left armrest support fixing block (2-2), and a fastener penetrates the lower end of the left armrest horizontal tube (2-1) to fix the left armrest horizontal tube (2-1) and the left armrest support fixing block (2-2).
4. The weldless tub chair of claim 1, wherein, The back plate assembly (3) comprises a back tube (3-3), a back decorative tube (3-1) and a back plate fixing block (3-2), the back tube (3-3) is formed into an arch shape by bending a sheet metal part, and the back decorative tube (3-1) is fixedly connected with the back tube (3-3) through the back plate fixing block (3-2).
5. The weldless sheet metal chair of claim 4, wherein, The back decorative tube (3-1) has a plurality of.
6. The weldless tub chair of claim 4, wherein, The back plate fixing block (3-2) is an L-shaped fixing part, has a fixing hole on the upper surface, one side of the back plate fixing block (3-2) is fixedly connected with the inner side of one side of the back tube (3-3) through a fastener, one end of the back decorative tube (3-1) is sleeved into the other side of the back plate fixing block (3-2), and a fastener penetrates the lower end of the back decorative tube (3-1) to fix the back decorative tube (3-1) and the back plate fixing block (3-2).
7. The weldless tub chair of claim 4, wherein, The lower end of the back pipe (3-3) has a mounting hole (3-4), the inner side of the right armrest horizontal pipe (1-1) has a back plate mounting hole one (1-5), the inner side of the left armrest horizontal pipe (2-1) has a back plate mounting hole two (2-5), fasteners pass through the mounting hole (3-4) of the back pipe (3-3) and the back plate mounting hole one (1-5) of the right armrest horizontal pipe (1-1), and the back plate assembly (3) is fixedly connected with the right armrest assembly (1); the fasteners pass through the mounting hole (3-4) of the back pipe (3-3) and the back plate mounting hole two (2-5) of the left armrest horizontal pipe (2-1), and the back plate assembly (3) is fixedly connected with the left armrest assembly (2).
8. The weldless tub chair of claim 1, wherein, The seat plate assembly (4) is a sheet metal plate, the periphery is downwardly turned over, the armrest mounting holes (4-1) are formed in the turned-over edges on the two sides, the inner side of the right armrest pipe (1-3) has a seat plate mounting hole one (1-4), the inner side of the left armrest pipe (2-3) has a seat plate mounting hole two (2-4), fasteners pass through the armrest mounting holes (4-1) of the seat plate assembly (4) and the seat plate mounting hole one (1-4), and the seat plate assembly (4) is fixedly connected with the right armrest assembly (1); the fasteners pass through the armrest mounting holes (4-1) of the seat plate assembly (4) and the seat plate mounting hole two (2-4), and the seat plate assembly (4) is fixedly connected with the left armrest assembly (2).
9. The weldless tub chair of claim 1, wherein, The seat plate support assembly (5) comprises two support pipe members, the two support pipe members are formed into an arc-shaped structure by being bent from sheet metal members, are oppositely arranged, are connected through fasteners in the middle, and are fixedly connected with the inner side of the turned-over edges of the seat plate assembly (4) at two ends through fasteners, so as to strengthen the strength of the seat plate assembly (4).
10. The weldless tub chair of any of claims 1-9, wherein, The fastener is a screw.