Lightweight automobile seat framework

Abstract

The utility model relates to the technical field of automobile seats, in particular to a lightweight automobile seat framework which comprises a cushion framework assembly and a backrest framework assembly, the cushion framework assembly comprises cushion side plates, a cushion transverse plate and a cushion suspension spring, the cushion transverse plate is fixedly connected between the cushion side plates, and the cushion suspension spring is fixedly connected between the cushion side plates. The two ends of the cushion suspension spring are connected to the cushion transverse plate through connecting mechanisms, the backrest framework assembly comprises backrest side plates, a back plate and a backrest U-shaped pipe, the backrest side plates are rotationally connected with the cushion side plates, the back plate is connected between the backrest side plates, and the two ends of the backrest U-shaped pipe are fixedly connected with the backrest side plates; the two ends of the cushion suspension spring are connected to the cushion transverse plate through the connecting mechanisms, an operator can easily detach the cushion suspension spring, the replacement time of the cushion suspension spring is greatly shortened, and the maintenance efficiency of a seat is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a lightweight automotive seat frame. Background Technology

[0002] With increasing environmental awareness, lightweighting has become an important trend in the future development of automobiles. Lightweighting not only reduces fuel consumption and emissions, but also increases the driving range of electric vehicles, alleviating charging anxiety.

[0003] In a lightweight automotive seat frame design, the connection method of the seat cushion frame springs is crucial, directly affecting the seat's comfort, stability, and durability. Related technologies primarily employ connection methods for seat cushion frame springs, including welding, bolting, and using specialized connectors. Welding can lead to thermal deformation during the welding process, affecting the seat's precision and appearance; furthermore, welded areas may crack or break due to vibration and impact during long-term use. Bolted connections, under prolonged vibration and impact, may loosen or damage the bolts, resulting in complex maintenance and low efficiency. Therefore, those skilled in the art have developed a lightweight automotive seat frame to address the problems mentioned in the background. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a lightweight car seat frame.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A lightweight car seat frame includes a seat cushion frame assembly. The seat cushion frame assembly includes a seat cushion side plate, a seat cushion cross plate, and a seat cushion suspension spring. The seat cushion cross plate is fixedly connected between the seat cushion side plates, and the two ends of the seat cushion suspension spring are connected to the seat cushion cross plate through a connecting mechanism.

[0007] It also includes a backrest frame assembly, which includes a backrest side panel, a back panel and a backrest U-shaped tube. The backrest side panel is rotatably connected to the seat cushion side panel, the back panel is connected between the backrest side panels, and the two ends of the backrest U-shaped tube are fixedly connected to the backrest side panel.

[0008] Furthermore, the connecting mechanism includes a locking assembly and a connecting plate. The connecting plate is fixedly connected to both ends of the seat cushion suspension spring. A connecting groove is provided on the seat cushion cross plate for connecting the connecting plate and the seat cushion suspension spring. The connecting plate is locked and fixed in the connecting groove by the locking assembly.

[0009] Furthermore, the engaging assembly includes a return spring, a movable plate, and an engaging rod. The seat cushion cross plate has an installation groove for mounting the return spring. The other end of the return spring is connected to the movable plate. The engaging rod is fixedly connected to one end of the movable plate. The connecting plate has an engaging groove for engaging the engaging rod.

[0010] Furthermore, a push plate is fixedly provided on the movable plate, and a through hole for the push plate to move is provided on one side of the mounting groove.

[0011] Furthermore, the seat cushion side panels and the seat cushion cross panel are made of aluminum-magnesium alloy, while the backrest side panels and the backrest panel are made of QP980 material.

[0012] Furthermore, the backrest U-shaped tube is provided with an upper horizontal steel wire, and the backrest side panels are provided with a lower horizontal steel wire.

[0013] Furthermore, the seat cushion side panel, the seat cushion cross panel, the backrest side panel, and the backrest panel are all provided with a zinc-based phosphate coating, and the outer side of the zinc-based phosphate coating is provided with a polyurethane coating.

[0014] The beneficial effects of adopting the technical solution of this utility model are:

[0015] In this lightweight car seat frame, the two ends of the seat cushion suspension spring are connected to the seat cushion cross plate through a connecting mechanism. When the seat cushion suspension spring is damaged after long-term use, such as elasticity decay or spring wire breakage, the operator can easily disassemble the seat cushion suspension spring.

[0016] The entire disassembly process requires no complicated steps. The new seat spring is then quickly aligned with the connecting mechanism, and through a convenient installation, it is securely reattached to the seat cushion crossbar, rapidly restoring the seat's elastic support function. Compared to traditional, complex connection methods, this design significantly reduces seat spring replacement time, greatly improving seat maintenance efficiency and laying a solid foundation for ensuring the seat's continued stable performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a cross-sectional structural diagram of the seat cushion horizontal plate in this utility model.

[0022] In the diagram: 1. Seat cushion side panel; 2. Seat cushion cross panel; 3. Seat cushion suspension spring; 4. Backrest side panel; 5. Backrest panel; 6. Backrest U-shaped tube; 7. Connecting plate; 8. Connecting groove; 9. Return spring; 10. Moving plate; 11. Locking rod; 12. Mounting groove; 13. Locking groove; 14. Push plate; 15. Through hole; 16. Upper horizontal connecting wire; 17. Lower horizontal connecting wire; 18. Zinc phosphate coating; 19. Polyurethane coating. 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 scope of protection of the present utility model.

[0024] Please see Figures 1-4 A lightweight car seat frame includes a seat cushion frame assembly, which includes a seat cushion side plate 1, a seat cushion cross plate 2, and a seat cushion suspension spring 3. The seat cushion cross plate 2 is fixedly connected between the seat cushion side plates 1, and the two ends of the seat cushion suspension spring 3 are connected to the seat cushion cross plate 2 through a connecting mechanism.

[0025] It also includes a backrest frame assembly, which includes a backrest side panel 4, a backrest panel 5, and a backrest U-shaped tube 6. The backrest side panel 4 is rotatably connected to the seat cushion side panel 1. The backrest panel 5 is connected between the backrest side panels 4. The two ends of the backrest U-shaped tube 6 are fixedly connected to the backrest side panels 4. The backrest U-shaped tube 6 is provided with an upper horizontal connecting wire 16, and the backrest side panels 4 are provided with a lower horizontal connecting wire 17.

[0026] Side panel 1: Provides lateral support and boundary definition for the seat cushion. Together with the cross panel 2, it forms the basic frame structure of the seat cushion, helps maintain the shape of the seat cushion, and provides a connection base for other components.

[0027] Seat cushion horizontal plate 2: It connects the two seat cushion side plates 1 laterally, enhances the stability of the seat cushion frame, and provides a connection point for the seat cushion suspension spring 3, bearing the pressure transmitted from the seat cushion suspension spring 3 and the weight applied by the human body.

[0028] Seat cushion suspension spring 3: As an elastic element, it mainly plays the role of cushioning and shock absorption. When a person sits on the seat cushion, it can produce elastic deformation according to the changes in body weight and sitting posture, providing comfortable support and reducing the impact force on the human body.

[0029] Backrest side panel 4: Rotatably connected to seat cushion side panel 1, allowing the backrest to rotate at a certain angle relative to the seat cushion to adapt to different sitting postures. Simultaneously, it connects the back panel 5 and the backrest U-shaped tube 6, providing lateral support and overall structural stability for the backrest.

[0030] Backrest 5: Connected between the two backrest side panels 4, it provides large-area support for the human back, ensuring back comfort and helping to distribute the pressure of the human back evenly to the backrest side panels 4 and other support components.

[0031] Backrest U-shaped tube 6: Its two ends are fixedly connected to the backrest side panel 4, enhancing the overall strength and stability of the backrest frame. The upper horizontal connecting wire 16 on the tube and the lower horizontal connecting wire 17 between the backrest side panel 4 further reinforce the backrest structure. It can also be used to install other auxiliary components, such as decorative fabric or padding for the backrest, making the backrest more sturdy and aesthetically pleasing.

[0032] Specifically, the connecting mechanism includes a locking assembly and a connecting plate 7. The connecting plate 7 is fixedly connected to both ends of the seat cushion suspension spring 3. A connecting groove 8 is provided on the seat cushion cross plate 2 for connecting the connecting plate 7 and the seat cushion suspension spring 3. The connecting plate 7 is locked and fixed in the connecting groove 8 by the locking assembly. The locking assembly includes a return spring 9, a moving plate 10 and a locking rod 11. An installation groove 12 is provided on the seat cushion cross plate 2 for installing the return spring 9. The other end of the return spring 9 is connected to the moving plate 10. The locking rod 11 is fixedly connected to one end of the moving plate 10. A locking groove 13 is provided on the connecting plate 7 for locking the locking rod 11. A push plate 14 is fixedly provided on the moving plate 10. A through hole 15 is provided on one side of the installation groove 12 for moving the push plate 14.

[0033] When installing the seat cushion suspension spring 3, first push the push plate 14. The push plate 14 can drive the moving plate 10 to move in the mounting groove 12. The moving plate 10 squeezes the return spring 9. The push plate 14 can drive the locking rod 11 to move. Then, the connecting plates 7 at both ends of the seat cushion suspension spring 3 are locked into the connecting groove 8 on the seat cushion horizontal plate 2. Then, the push plate 14 is released. The return spring 9 releases its elastic potential energy and pushes the moving plate 10 to move. The locking rod 11 on the moving plate 10 is locked into the locking groove 13 on the connecting plate 7. Thus, the connecting plate 7 is locked and fixed in the connecting groove 8, thereby fixing the seat cushion suspension spring 3 to the seat cushion horizontal plate 2.

[0034] When disassembling the seat cushion suspension spring 3, move the push plate 14 to move the moving plate 10 and drive the locking rod 11 to move, so that the locking rod 11 is moved out of the locking groove 13, and then the connecting plate 7 can be taken out of the connecting groove 8.

[0035] The entire disassembly process does not require complicated disassembly steps. Compared with the traditional complicated connection method, this design greatly shortens the replacement time of the seat cushion spring 3, which significantly improves the maintenance efficiency of the seat and lays a solid foundation for ensuring the continuous and stable performance of the seat.

[0036] In this embodiment, the seat cushion side panel 1 and seat cushion cross panel 2 are made of aluminum-magnesium alloy, and the backrest side panel 4 and back panel 5 are made of QP980 material. The seat cushion side panel 1, seat cushion cross panel 2, backrest side panel 4 and back panel 5 are all provided with a zinc phosphate coating 18, and a polyurethane coating 19 is provided on the outside of the zinc phosphate coating 18.

[0037] The seat cushion side panels 1 and the cross panel are made of aluminum-magnesium alloy, which is lightweight and easy to move and install, reducing transportation costs and energy consumption. It is also strong enough to support the weight of the human body, highly corrosion resistant, and can adapt to various usage environments such as humidity, thus extending its service life.

[0038] The QP980 material used for the backrest side panels 4 and backrest 5 has excellent yield strength and tensile strength, giving the backrest super rigidity and ensuring the safety of the passenger's back under impact. Its good formability can also precisely fit the ergonomic design and improve comfort.

[0039] The zinc-based phosphate coating 18 forms a dense phosphate film on the metal surface, enhancing the adhesion between the metal and the polyurethane coating 19, preventing peeling, and significantly improving corrosion resistance, thus providing dual protection. It also has micro-lubricity, which is beneficial for component assembly.

[0040] The polyurethane coating 19 has excellent wear resistance, resisting daily friction and scratches and protecting seat components; it has good flexibility, adapting to deformation caused by temperature and vibration, and preventing the coating from cracking; it has strong weather resistance, withstanding ultraviolet rays and extreme temperatures, keeping the seat's appearance as good as new for a long time.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightweight automobile seat framework characterized by: The application relates to a sofa framework assembly, which comprises a cushion framework assembly and a backrest framework assembly.

2. The light-weight automotive seat framework according to claim 1, characterized in that: The connecting mechanism comprises a clamping assembly and a connecting plate (7), the connecting plate (7) is fixedly connected at the two ends of the cushion suspension spring (3), the cushion transverse plate (2) is provided with a connecting groove (8) for connecting the connecting plate (7) and the cushion suspension spring (3), and the connecting plate (7) is clamped and fixed in the connecting groove (8) through the clamping assembly.

3. The light-weight automotive seat framework according to claim 2, characterized in that: The clamping assembly comprises a reset spring (9), a moving plate (10) and a clamping rod (11), the cushion transverse plate (2) is provided with an installation groove (12) for installing the reset spring (9), the other end of the reset spring (9) is connected with the moving plate (10), the clamping rod (11) is fixedly connected at one end of the moving plate (10), and the connecting plate (7) is provided with a clamping groove (13) for clamping the clamping rod (11).

4. The light-weight automotive seat framework according to claim 3, characterized in that: The moving plate (10) is fixedly provided with a push plate (14), and one side of the installation groove (12) is provided with a through hole (15) for moving the push plate (14).

5. The light-weight automotive seat framework according to claim 1, wherein: The cushion side plate (1) and the cushion transverse plate (2) are made of aluminum-magnesium alloy, and the backrest side plate (4) and the back plate (5) are made of QP980 material.

6. The light-weight automotive seat framework according to claim 1, characterized in that: The backrest U-shaped pipe (6) is provided with an upper transverse connecting steel wire (16), and the backrest side plate (4) is provided with a lower transverse connecting steel wire (17).

7. The light-weight automotive seat framework according to claim 1, characterized in that: The cushion side plate (1), the cushion transverse plate (2), the backrest side plate (4) and the back plate (5) are all provided with a zinc phosphating coating (18), and the outer side of the zinc phosphating coating (18) is provided with a polyurethane coating (19).

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