Seat fixing frame structure

By using a multi-component seat fixing frame structure and a buffer connection design, the problem of existing seat fixing frames being unable to withstand heavy weight and external forces is solved, thereby improving stability and comfort and extending the service life of the seat.

CN224235021UActive Publication Date: 2026-05-15李四成
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing seat fixing frames have a simple structure that cannot effectively withstand large weights and external forces, resulting in swaying, deformation, and a lack of cushioning, which affects safety and comfort.

Method used

The system is composed of a base plate, an arc-shaped upright plate, an L-shaped side plate, a positioning plate, and a frame, forming a stable frame. The system also features a serpentine spring and tension spring connection structure to enhance the cushioning effect, and reinforced tubes on the inside of the backrest tube to improve stability.

Benefits of technology

It achieves stability and cushioning effect when the seat bears a large weight and external force, improves safety and comfort, extends the service life of the seat, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224235021U_ABST
Patent Text Reader

Abstract

The utility model discloses a seat fixing frame structure which comprises a bottom plate, a positioning plate and a fixing piece. The number of the bottom plates is two, one end of each bottom plate is provided with an arc-shaped vertical plate, and the other side of each bottom plate is provided with an L-shaped side plate; the positioning plates are arranged between the L-shaped side plates and the arc-shaped vertical plates, and a frame is arranged between the two groups of positioning plates; the bottom plate, the arc-shaped vertical plate, the L-shaped side plate, the positioning plate, the L-shaped supporting plate, the supporting pipe and other components are reasonably arranged and connected, a stable frame structure is formed, good buffering and comfort are achieved, impact force generated in the riding process can be effectively absorbed and buffered, vibration felt by a passenger is reduced, and the safety of the passenger is improved. More comfortable riding experience is provided for a passenger, and the seat is particularly suitable for a long-time riding scene; the strength of each part of the seat is enhanced and the service life of the seat fixing frame is prolonged through the reinforcing pipe on the inner side of the backrest pipe and the firm connection mode, such as screw connection, among all parts.
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Description

Technical Field

[0001] This utility model relates to the field of seat technology, specifically a seat fixing frame structure. Background Technology

[0002] Chairs are a widely used type of furniture, used in homes, offices, and public places. Although the appearance of various chairs may differ, their function is to provide people with comfortable seating.

[0003] In existing technologies, some seat frames have simple structures, typically consisting of just a few flat plates connected by welding or bolts to form a basic frame. They lack dedicated cushioning components, and the backrest support is often made of a single tube. During use, such frames are unable to withstand significant weight and external forces. When passengers sit down or stand up, the seat is prone to shaking and deformation, which not only affects safety but also fails to effectively absorb impact due to the lack of cushioning components. This results in noticeable vibrations for passengers, poor comfort, and increased fatigue during long periods of sitting, failing to meet users' demands for seat quality.

[0004] In view of this, we have introduced a seat fixing bracket structure. Utility Model Content

[0005] The purpose of this utility model is to provide a seat fixing frame structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seat fixing frame structure, comprising: a base plate, a positioning plate, and a fixing piece;

[0007] The number of base plates is two sets, one end of the base plate is provided with an arc-shaped vertical plate, and the other side of the base plate is provided with an L-shaped side plate;

[0008] The positioning plate is set between the L-shaped side plate and the arc-shaped vertical plate. The positioning plate is fixedly set with the L-shaped side plate and the arc-shaped vertical plate. A frame is set between the two sets of positioning plates. The frame is fixedly set with the positioning plate.

[0009] The fixing plate is set at the bottom of the frame and is fixedly installed between the fixing plate and the positioning plate. It is then connected to the bottom of the frame by bolts to fix the frame. The fixing plate is set on one side of the positioning plate.

[0010] The surface of the frame is provided with a connecting structure, through the cooperation of the serpentine spring, tension spring A and tension spring B in the connecting structure, so that the serpentine spring is subjected to force in the frame.

[0011] Preferably, the connecting structure includes a protrusion connected to the inner side of the frame. The protrusion and the frame are fixedly connected or welded together. Positioning blocks are welded to the surface of the frame. The serpentine spring is connected between two sets of positioning blocks. The tension spring A is connected between two sets of serpentine springs. The tension spring B is connected between the protrusion and the serpentine spring. The cooperation of tension spring A, tension spring B and serpentine spring can form a support part, making it convenient for users to sit down.

[0012] Preferably, a connecting block is connected to the inner side of the L-shaped side panel, and a backrest tube is connected to the surface of the connecting block. The connecting block and the backrest tube are welded together. A screw is connected to the surface of the connecting block, and the screw extends through the connecting block and into the interior of the L-shaped side panel. The screw facilitates the connection of two sets of connecting blocks to the inner side of the L-shaped side panel, thereby connecting the backrest tube between the two sets of L-shaped side panels.

[0013] Preferably, the inner side of the backrest tube is connected to a reinforcing tube. The reinforcing tube on the inner side of the backrest tube enhances the strength and stability of the backrest tube, making it less prone to deformation when subjected to backrest pressure and external force, and also making it convenient for operators to lean against it.

[0014] Preferably, an L-shaped support plate connects the L-shaped side plate and the arc-shaped upright plate. The L-shaped support plate is welded to the L-shaped side plate and the arc-shaped upright plate, and the surface of the L-shaped support plate is provided with a hollow groove.

[0015] Preferably, a support tube is connected between the L-shaped side plate and the bottom plate, which further increases the firmness between the L-shaped side plate and the bottom plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) Through the reasonable layout and connection of multiple components such as the base plate, arc-shaped upright plate, L-shaped side plate, positioning plate, L-shaped support plate and support tube, a stable frame structure is formed, which can withstand a large weight and external force, effectively avoid the problem of shaking and deformation of the seat during use, ensure the safety and reliability of the seat, have good cushioning and comfort, can effectively absorb and cushion the impact force generated during the ride, reduce the vibration felt by the rider, and provide a more comfortable riding experience for the rider, especially suitable for long-term riding scenarios;

[0018] (2) By using the reinforcing tube inside the backrest tube and the firm connection between the components, such as screw connection, the strength of each part of the seat is enhanced, the service life of the seat frame is extended, the frequency of repair or replacement due to component damage is reduced, and maintenance costs are saved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the frame of this utility model.

[0021] Figure 3 This is a schematic diagram of the three-dimensional connection of the arc-shaped vertical plate, frame, and L-shaped side plate of this utility model.

[0022] In the diagram: 1. Curved upright plate; 2. Frame; 3. L-shaped support plate; 4. L-shaped side plate; 5. Base plate; 6. Support tube; 7. Positioning plate; 8. Hollow groove; 9. Backrest tube; 10. Reinforcing tube; 11. Connecting block; 12. Screw; 13. Positioning block; 14. Protrusion; 15. Fixing plate; 16. Snake spring; 17. Tension spring A; 18. Tension spring B. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a seat fixing frame structure, including: a base plate 5, the number of base plates 5 is two sets, an arc-shaped upright plate 1 is provided at one end of the base plate 5, the arc-shaped upright plate 1 and the base plate 5 are welded together, and an L-shaped side plate 4 is provided on the other side of the base plate 5, the L-shaped side plate 4 and the base plate 5 are welded together.

[0025] Positioning plate 7 is set between L-shaped side plate 4 and arc-shaped vertical plate 1. Positioning plate 7 is fixedly set between L-shaped side plate 4 and arc-shaped vertical plate 1. Frame 2 is set between the two sets of positioning plates 7. Frame 2 is fixedly set between positioning plate 7.

[0026] A fixing piece 15 is provided at the bottom of the frame 2. The fixing piece 15 is fixedly installed between the fixing piece 15 and the positioning plate 7, and is then connected to the bottom of the frame 2 by bolts to fix the frame 2. The fixing piece 15 is provided on one side of the positioning plate 7.

[0027] The surface of the frame 2 is provided with a connecting structure. Through the cooperation of the serpentine spring 16, tension spring A17 and tension spring B18 in the connecting structure, the serpentine spring 16 is subjected to force in the frame 2.

[0028] The connection structure includes a protrusion 14 connected to the inner side of the frame 2. The protrusion 14 and the frame 2 are fixedly connected or welded together. Positioning blocks 13 are welded to the surface of the frame 2. The serpentine spring 16 is connected between two sets of positioning blocks 13. The tension spring A17 is connected between two sets of serpentine springs 16. The tension spring B18 is connected between the protrusion 14 and the serpentine spring 16. The cooperation of tension spring A17, tension spring B18 and serpentine spring 16 can form a support part, making it convenient for users to sit down.

[0029] The inner side of the L-shaped side panel 4 is connected to a connecting block 11, and the surface of the connecting block 11 is connected to a backrest tube 9. The connecting block 11 and the backrest tube 9 are welded together. The surface of the connecting block 11 is connected to a screw 12, and the screw 12 passes through the connecting block 11 and extends into the interior of the L-shaped side panel 4. The screw 12 facilitates the connection of two sets of connecting blocks 11 to the inner side of the L-shaped side panel 4, thereby connecting the backrest tube 9 between the two sets of L-shaped side panels 4.

[0030] The inner side of the backrest tube 9 is connected to a reinforcing tube 10. The reinforcing tube 10 on the inner side of the backrest tube 9 enhances the strength and stability of the backrest tube 9, making it less prone to deformation when subjected to backrest pressure and external force, and also making it convenient for operators to lean against it.

[0031] An L-shaped support plate 3 connects the L-shaped side plate 4 and the arc-shaped vertical plate 1. The L-shaped support plate 3 is welded to the L-shaped side plate 4 and the arc-shaped vertical plate 1. The surface of the L-shaped support plate 3 is provided with a hollow groove 8.

[0032] A support tube 6 is connected between the L-shaped side plate 4 and the bottom plate 5, which further increases the firmness between the L-shaped side plate 4 and the bottom plate 5.

[0033] Specifically, in use, in this seat fixing frame structure, the base plate 5 serves as the basic component. The two sets of base plates 5 respectively construct the overall frame 2 foundation through the arc-shaped upright plate 1 at one end and the L-shaped side plate 4 on the other side. The positioning plate 7 is set between the L-shaped side plate 4 and the arc-shaped upright plate 1, which plays the role of connection and positioning, and at the same time supports the frame 2 between the two sets of positioning plates 7, making the whole structure more stable.

[0034] The connecting structure on the surface of frame 2 is a key part of the fixed frame. The protrusion 14 in the connecting structure is connected to the inside of frame 2, the positioning block 13 is welded to the surface of frame 2, the serpentine spring 16 is connected between two sets of positioning blocks 13, the tension spring A17 connects two sets of serpentine springs 16, and the tension spring B18 connects the protrusion 14 and the serpentine spring 16. When the seat is subjected to external force, such as the pressure and impact generated by the occupant sitting down or standing up, the serpentine spring 16 is the first to be subjected to force and deform. Its elastic characteristics allow it to absorb part of the external force. At this time, the tension spring A17 and tension spring B18 will also be stretched or contracted accordingly. Through the cooperation of the three, the external force is further dispersed and buffered, and the external force is evenly distributed on frame 2 to avoid excessive local stress on frame 2 and damage. At the same time, it also provides a good buffering effect for the seat and improves the comfort of sitting.

[0035] The connecting block 11 on the inner side of the L-shaped side plate 4 is securely connected to the L-shaped side plate 4 by screws 12. The backrest tube 9 connected to the surface of the connecting block 11 provides support for the seat back. The reinforcing tube 10 on the inner side of the backrest tube 9 enhances the strength and stability of the backrest tube 9, making it less prone to deformation when subjected to backrest pressure and external force.

[0036] The L-shaped support plate 3 between the L-shaped side plate 4 and the arc-shaped upright plate 1 further enhances the stability of the overall structure, while the support tube 6 between the L-shaped side plate 4 and the bottom plate 5 strengthens the connection between the bottom plate 5 and the L-shaped side plate 4, improving the load-bearing capacity and deformation resistance of the entire fixed frame.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seat fixing frame structure, characterized in that, include: The base plate (5) consists of two sets. One end of the base plate (5) is provided with an arc-shaped vertical plate (1), and the other side of the base plate (5) is provided with an L-shaped side plate (4). Positioning plate (7), the positioning plate (7) is set between the L-shaped side plate (4) and the arc-shaped upright plate (1), and a frame (2) is set between the two sets of positioning plates (7); Fixing piece (15), the fixing piece (15) is set at the bottom of the frame (2), the fixing piece (15) is set on one side of the positioning plate (7); The surface of the frame (2) is provided with a connecting structure. Through the cooperation of the serpentine spring (16), tension spring A (17) and tension spring B (18) of the connecting structure, the serpentine spring (16) is subjected to force in the frame (2).

2. The seat fixing frame structure according to claim 1, characterized in that, The connection structure includes a protrusion (14) connected to the inner side of the frame (2), positioning blocks (13) are welded to the surface of the frame (2), the serpentine spring (16) is connected between the two sets of positioning blocks (13), the tension spring A (17) is connected between the two sets of serpentine springs (16), and the tension spring B (18) is connected between the protrusion (14) and the serpentine spring (16).

3. The seat fixing frame structure according to claim 1, characterized in that, The inner side of the L-shaped side plate (4) is connected to a connecting block (11), the surface of the connecting block (11) is connected to a backrest tube (9), the surface of the connecting block (11) is connected to a screw (12), and the screw (12) extends through the connecting block (11) and into the interior of the L-shaped side plate (4).

4. The seat fixing frame structure according to claim 3, characterized in that, The backrest tube (9) is connected to a reinforcing tube (10) on its inner side.

5. The seat fixing frame structure according to claim 1, characterized in that, An L-shaped support plate (3) is connected between the L-shaped side plate (4) and the arc-shaped vertical plate (1), and the surface of the L-shaped support plate (3) is provided with a groove (8).

6. The seat fixing frame structure according to claim 1, characterized in that, A support tube (6) connects the L-shaped side plate (4) and the bottom plate (5).