Lightweight seat framework structure
The limiting plate structure, which uses a limiting sleeve and bolts for connection, solves the problem of unstable fixing between the seat plate and the metal seat frame, thereby reducing swaying and improving stability.
Patent Information
- Application Number
- CN202520458058.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The seat panel is not securely fixed to the metal seat frame, causing it to wobble.
The system uses a limiting sleeve and bolt connection. The limiting plate increases the contact area between the bolt and the seat plate, and the vertical and horizontal limiting plates set diagonally reduce swaying.
It effectively reduces the swaying of the seat in all directions, improves stability, and enhances comfort.
Smart Images

Figure CN223835469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and more specifically, to a lightweight seat frame structure. Background Technology
[0002] Lightweighting is one of the key development directions for modern automobiles. One major solution for lightweighting car seats is to replace the seat panel with a lighter, non-metallic material, while using metal materials for the seat frame, which requires higher strength. This difference in materials means that the seat panel and seat frame can only be fixed together with bolts, leading to a tendency for the seat panel to wobble.
[0003] Therefore, it is necessary to provide a lightweight seat frame structure to solve the above problems. Utility Model Content
[0004] Based on the aforementioned problems in the existing technology, the purpose of this application is to provide a lightweight seat frame structure to reduce seat sway.
[0005] The technical solution adopted by this application to solve its technical problem is: a lightweight seat frame structure, including a support frame and a seat plate located inside the support frame. A plurality of support plates are provided inside the support frame. The support plates are located on the back of the seat plate. Each support plate is provided with a positioning hole, which penetrates through the support plate. The seat plate is provided with a through hole corresponding to the position of the positioning hole, which penetrates through the seat plate. A limit sleeve is provided on the side of the through hole away from the support plate. A limit plate is provided on the outer wall of the limit sleeve. A bolt is provided on the side of the limit sleeve away from the seat plate. One end of the bolt passes through the limit sleeve, the through hole, and the positioning hole and is threaded with a nut.
[0006] Furthermore, the seat plate is provided with several receiving grooves on the side away from the support plate, which correspond to the positions of the positioning holes, and the receiving grooves are provided with limiting grooves on both sides that are adapted to the limiting plate.
[0007] The limiting sleeve and bolts are then welded and fixed in place.
[0008] Furthermore, at least four limiting sleeves are provided, wherein at least two of the limiting sleeves have vertical limiting plates and at least two of the limiting sleeves have horizontal limiting plates.
[0009] The limiting sleeves, which have the same direction as the further limiting plates, are arranged diagonally.
[0010] The beneficial effects of this utility model are:
[0011] 1. By using a limiting plate to increase the contact area between the bolts and the seat plate, the bolts can be more securely fastened to the seat plate.
[0012] 2. Since the vertical placement of the limiting plate can reduce the up-and-down swaying of the seat plate, while the horizontal placement of the limiting plate can reduce the left-and-right swaying of the seat plate, the combination of limiting plates in different directions can reduce the swaying of the seat plate in all directions. Furthermore, by setting them diagonally, the overall swaying of the seat plate can be further reduced. Attached Figure Description
[0013] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:
[0014] Figure 1 This is an overall schematic diagram of a lightweight seat frame structure according to this application;
[0015] Figure 2 for Figure 1 An exploded view of a lightweight seat frame structure;
[0016] In the picture:
[0017] 1. Support frame; 11. Support plate; 12. Positioning holes;
[0018] 2. Seat panel; 21. Receiving groove; 22. Through hole; 23. Limiting groove;
[0019] 3. Limiting sleeve; 31. Limiting plate;
[0020] 4. Bolt; 41. Nut. Detailed Implementation
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0023] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0024] like Figure 1-2As shown, this application provides a lightweight seat frame structure, including a support frame 1 and a seat plate 2 located inside the support frame 1. The support frame 1 is the main support frame of the seat and needs to have high strength, so it is made of metal. The seat plate 2 is used to support the passenger's back and has lower strength requirements, so it is made of composite non-metallic materials, which have a certain strength while reducing the overall weight of the seat frame.
[0025] Several support plates 11 are provided on the inner side of the support frame 1. The support plates 11 are located on the back of the seat plate 2. Each support plate 11 is provided with a positioning hole 12, which penetrates through the support plate 11.
[0026] The seat plate 2 has several receiving grooves 21 on the side away from the support plate 11, which correspond to the positions of the positioning holes 12. The bottom of the receiving grooves 21 has a through hole 22 that passes through the seat plate 2.
[0027] Limiting grooves 23 are provided on both sides of the receiving groove 21, and limiting sleeves 3 are provided inside the receiving groove 21. The outer wall of the limiting sleeve 3 is provided with a limiting plate 31 that is adapted to the limiting groove 23.
[0028] A bolt 4 is provided on the side of the limiting sleeve 3 away from the seat plate 2. One end of the bolt 4 passes through the limiting sleeve 3, the through hole 22 and the positioning hole 12 and is threaded to a nut 41.
[0029] The limiting sleeve 3 and bolt 4 are welded and fixed.
[0030] In this embodiment, four limiting sleeves 3 are provided. The limiting plates 31 of two diagonally opposite limiting sleeves 3 are in a vertical state, while the limiting plates 31 of the other two diagonally opposite limiting sleeves 3 are in a horizontal state.
[0031] During installation, first put the limiting sleeve 3 onto the bolt 4, and then weld the limiting sleeve 3 and the bolt 4 together to make the limiting sleeve 3 and the bolt 4 a whole, thereby eliminating the shaking between the limiting sleeve 3 and the bolt 4.
[0032] Then, the limiting sleeve 3 and the bolt 4 will be placed into the receiving groove 21, while the limiting plate 31 will be inserted into the limiting groove 23, and one end of the bolt 4 will be threaded through the through hole 22 and the positioning hole 12 from the bolt groove 32 and connected to the nut 41, and tightened.
[0033] After installation, the seat plate 2 will not have any protruding structures on its surface due to the receiving groove 21, thus avoiding affecting the comfort of the seat.
[0034] Since the two diagonally opposite limiting plates 31 are vertical, the vertical swaying of the seat plate 2 can be reduced; while the other two diagonally opposite limiting plates 31 are horizontal, which can reduce the horizontal swaying of the seat plate 2. Thus, by cooperating with the limiting plates 31 on the four limiting sleeves 3, the swaying of the seat plate 2 in all directions can be reduced. Furthermore, by setting them diagonally, the overall swaying of the seat plate 2 can be further reduced.
[0035] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0037] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A lightweight seat frame structure, characterized in that: The device includes a support frame (1) and a seat plate (2) located inside the support frame (1). Several support plates (11) are provided inside the support frame (1). The support plates (11) are located on the back of the seat plate (2). Each support plate (11) is provided with a positioning hole (12). The positioning hole (12) passes through the support plate (11). The seat plate (2) is provided with a through hole (22) corresponding to the position of the positioning hole (12). The through hole (22) passes through the seat plate (2). A limit sleeve (3) is provided on the side of the through hole (22) away from the support plate (11). A limit plate (31) is provided on the outer wall of the limit sleeve (3). A bolt (4) is provided on the side of the limit sleeve (3) away from the seat plate (2). One end of the bolt (4) passes through the limit sleeve (3), the through hole (22) and the positioning hole (12) and is threaded with a nut (41).
2. The lightweight seat frame structure according to claim 1, characterized in that: The seat plate (2) is provided with a plurality of receiving grooves (21) on the side away from the support plate (11) and corresponding to the position of the positioning hole (12). The receiving grooves (21) are provided with limiting grooves (23) on both sides that are adapted to the limiting plate (31).
3. The lightweight seat frame structure according to claim 1, characterized in that: The limiting sleeve (3) and bolt (4) are welded and fixed.
4. The lightweight seat frame structure according to claim 1, characterized in that: The limiting sleeve (3) is provided in at least four, of which at least two of the limiting sleeves (3) have a vertical limiting plate (31) and at least two of the limiting sleeves (3) have a horizontal limiting plate (31).
5. A lightweight seat frame structure according to claim 4, characterized in that: The limiting sleeves (3) with the same direction as the limiting plate (31) are arranged diagonally.