Back seat backrest support supporting plate

Abstract

The utility model discloses a back seat backrest support supporting plate which comprises a seat backrest framework, and a backrest supporting plate is arranged on the inner side of the seat backrest framework. A first fixing rod and a second fixing rod are arranged at the rear end of the backrest supporting plate, and the two ends of the first fixing rod and the two ends of the second fixing rod are connected with the inner side wall of the seat backrest framework. In the design of the backrest supporting plate, the first fixing rod is made of a high-strength elastic metal material and has good rebound resilience, and the sitting comfort is improved; the second fixing rod is fixed through the combination of the tension spring and the connecting piece, the rear seat backrest support supporting plate which is higher in strength, better in rebound resilience and more comfortable is provided, friction and abnormal sound between the supporting plate and a seat backrest framework are effectively reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat accessories, in particular to a rear seat backrest bracket support plate. Background Art

[0002] At present, the lumbar support device of automobile seats mainly adopts two forms: one is to install a steel wire curtain structure fixed by transverse and longitudinal steel wires at the rear end of the seat. This structure realizes the dual functions of support and elasticity through connection with the seat frame, aiming to improve the comfort of the passengers; however, due to the relatively fixed winding position of the steel wire, stress concentration occurs, and fatigue fracture is prone to occur under long-term use, affecting its reliability and durability; another common form is a plastic support plate structure installed on the seat back, in which the steel wire is fixed on the plastic plate. The upper end of this structure is connected to the seat frame through two longitudinal thick steel wires, and the other end is fixed in the mounting hole of the backrest frame plate by screw connection; although this fixed structure provides higher strength, the rebound ability is relatively weakened, thus sacrificing the comfort of the seat to a certain extent. In addition, the friction between the steel wire and the metal frame is prone to produce abnormal noise, further affecting the user experience. Summary of the invention

[0003] The purpose of the utility model is to provide a rear seat backrest bracket support plate to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A rear seat backrest bracket support plate, comprising a seat backrest frame, wherein a backrest support plate is provided on the inner side of the seat backrest frame; weight-reducing holes are symmetrically opened in the middle of the backrest support plate, wherein a reinforcement groove is provided around the periphery of the weight-reducing hole; a first fixing rod and a second fixing rod are provided at the rear end of the backrest support plate, wherein both ends of the first fixing rod and the second fixing rod are respectively connected to the inner side wall of the seat backrest frame; the first fixing rod is bent in a "J" shape, wherein a plurality of first positioning slots are provided at the rear end of the backrest support plate, and the plurality of first positioning slots are respectively engaged with the first fixing rod; the second fixing rod is bent along the lower end edge of the backrest support plate, wherein a plurality of second positioning slots matching the second fixing rod are provided at the rear end of the backrest support plate.

[0006] Preferably, reinforcing ribs are provided around the first positioning slot.

[0007] Preferably, the backrest support plate is made of a high-toughness alloy material or a composite material.

[0008] Preferably, a limit block is provided at the rear end of the backrest support plate, wherein a side edge of the limit block abuts against a bent corner of the first fixing rod.

[0009] Preferably, the first fixing rod is made of high-strength elastic metal material, wherein both ends of the first fixing rod are bent to form a first hook; the inner wall of the seat back frame is provided with a limiting groove adapted to the first hook, wherein the first hook is arranged in the limiting groove and movably connected thereto.

[0010] Preferably, a wear-resistant rubber pad is provided on the inner wall of the limiting groove.

[0011] Preferably, the second fixing rod is made of a high-strength elastic metal material, wherein two ends of the second fixing rod are respectively bent to form a second hook.

[0012] Preferably, a tension spring is provided below the inner wall of the seat back frame and close to both ends of the second fixing rod, wherein one end of the tension spring is fixedly connected to the inner wall of the seat back frame, and the other end of the tension spring is provided with a connecting piece.

[0013] Preferably, a fixing hole is provided on the connecting member, wherein the fixing hole is matched with the second hook.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model significantly improves the strength and durability of the backrest support plate by adopting a backrest support plate made of a high-toughness alloy material or a composite material, and effectively solves the problems of stress concentration and easy fatigue fracture in the prior art; in the design of the backrest support plate, the first fixing rod is made of a high-strength elastic metal material, which has good resilience and increases the comfort of riding; at the same time, the design of the weight-reducing hole reduces the weight of the support plate, further improving the riding experience; by setting a wear-resistant rubber pad on the inner wall of the limit groove, and using a combination of a tension spring and a connector to fix the second fixing rod, the friction and abnormal noise between the support plate and the seat back frame are effectively reduced, and the user experience is improved. The utility model effectively solves the problems existing in the prior art by optimizing material selection, structural design and fixing method, and provides a rear seat back support plate with higher strength, better resilience and more comfort, while reducing abnormal noise and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0017] Figure 3 yes Figure 1 An enlarged schematic diagram of the structure at A is shown;

[0018] Figure 4 It is a structural schematic diagram of the backrest support plate of the utility model;

[0019] Figure 5It is a schematic diagram of the back structure of the backrest support plate of the utility model.

[0020] Among them: 1. seat back frame; 2. back support plate; 3. weight reduction hole; 4. reinforcement groove; 5. first fixing rod; 6. second fixing rod; 7. first positioning slot; 8. reinforcement rib; 9. second positioning slot; 10. limit block; 11. first hook; 12. limit slot; 13. second hook; 14. tension spring; 15. connector; 16. fixing hole. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Please refer to Figures 1 to 5 To achieve the above purpose, the utility model provides the following technical solutions:

[0023] A rear seat backrest bracket support plate, comprising a seat backrest frame 1, wherein a backrest support plate 2 is provided on the inner side of the seat backrest frame 1, and the backrest support plate 2 is made of high-toughness alloy material or composite material; weight-reducing holes 3 are symmetrically opened in the middle of the backrest support plate 2, wherein a reinforcing groove 4 is arranged around the periphery of the weight-reducing hole 3; a first fixing rod 5 and a second fixing rod 6 are provided at the upper end of the rear end of the backrest support plate 2, wherein both ends of the first fixing rod 5 and the second fixing rod 6 are respectively connected to the inner side wall of the seat backrest frame 1; the first fixing rod 5 is bent in a "J" shape, wherein a plurality of first positioning grooves 7 are provided at the rear end of the backrest support plate 2; the first positioning grooves 7 are respectively clamped with the first fixing rod 5, wherein each of the first positioning grooves 7 is provided with reinforcing ribs 8 around it; the second fixing rod 6 is bent along the lower end edge of the backrest support plate 2, wherein a plurality of second positioning grooves 9 adapted to the second fixing rod 6 are provided at the rear end of the backrest support plate 2.

[0024] Furthermore, the back support plate 2 is made of aluminum alloy, steel alloy or other high-toughness alloy materials. The high-toughness alloy materials have high tensile strength and yield strength, can withstand large external loads, and are not prone to deformation or breakage, thereby improving the overall strength and durability of the back support plate 2; according to different needs, the back support plate 2 can also be made of carbon fiber reinforced composite materials or glass fiber reinforced composite materials, which can significantly reduce the weight of the back support plate 2 and help improve the fuel economy or cruising range of the vehicle; the fiber reinforcement of the composite material can significantly improve the strength and stiffness of the material, so that the back support plate 2 exhibits excellent mechanical properties when bearing loads.

[0025] Furthermore, by symmetrically opening weight-reducing holes 3 in the middle of the back support plate 2, it is intended to effectively balance and reduce the overall weight of the back support plate 2, and at the same time, through the optimization design of the structural strength, it is ensured that the opening of 3 will not have any negative impact on the performance of the back support plate 2; although the weight-reducing holes 3 can reduce the weight of the back support plate 2, stress concentration will also occur around the weight-reducing holes 3. The design of the reinforcement grooves 4 can effectively disperse these concentrated stresses and avoid local damage caused by excessive stress; through the strengthening effect of the reinforcement grooves 4, the back support plate 2 can be more evenly loaded when bearing loads. The stress is distributed on the ground, thereby improving its overall bearing capacity; the combined design of the weight-reducing holes 3 and the reinforcing grooves 4 can achieve the effect of balancing the weight of the backrest support plate 2 by strengthening the local structure through the reinforcing grooves 4 while reducing the weight; and the existence of the reinforcing grooves 4 enables the backrest support plate 2 to better maintain its stability when subjected to external forces, reduce the vibration or deformation caused by uneven weight distribution, and thus reduce the fatigue damage caused by long-term cyclic loads; by enhancing the structural strength and optimizing the weight distribution, the reinforcing grooves help to improve the durability of the backrest support plate 2 and extend its service life.

[0026] Furthermore, the first fixing rod 5 is designed as a "J"-shaped bending structure, which not only increases the strength of the first fixing rod 5, but also facilitates its connection with the seat back frame 1; by providing a plurality of first positioning slots 7 at the rear end of the back support plate 2, wherein the first positioning slots 7 form a snap-fitting relationship with the first fixing rod 5, it is ensured that the first fixing rod 5 is firmly fixed on the back support plate 2; this snap-fitting method is simple and fast, easy to install and disassemble, and also convenient for subsequent maintenance and adjustment; moreover, the reasonable layout of the first fixing rod 5 and the first positioning slots 7 helps to optimize the weight distribution of the back support plate 2, so that the backrest The support plate 2 can be more balanced and stable when bearing loads, reducing vibration or deformation caused by uneven weight distribution; in order to further enhance the strength and stability of the first positioning slot 7 area, reinforcing ribs 8 are cleverly arranged around the first positioning slot 7. This design not only enhances the structural strength of the first positioning slot 7, but also significantly improves its stability and durability in practical applications. The reinforcing ribs 8 are closely combined with the periphery of the first positioning slot 7 to work together to ensure that the first positioning slot 7 can withstand greater stress and pressure, thereby maintaining the overall strength and stability of the backrest support plate 2.

[0027] Furthermore, the second fixing rod 6 is bent along the lower end edge of the back support plate 2 to ensure its close fit and effective support to the back support plate 2; at the same time, a plurality of second positioning slots 9 are arranged at the rear end of the back support plate 2, wherein the shape and size of the second positioning slots 9 are fully adapted to the second fixing rod 6 to ensure that the two can be firmly connected together; the clamping design of the second positioning slots 9 and the second fixing rod 6 enables the second fixing rod 6 to be accurately installed at the predetermined position of the back support plate 2, thereby avoiding the dispersion or failure of the supporting force caused by improper installation position; this clamping method is simple and fast, easy to install and disassemble, and also convenient for subsequent maintenance and adjustment; moreover, the reasonable layout of the second fixing rod 6 and the second positioning slots 9 helps to optimize the weight distribution of the back support plate 2, so that the back support plate 2 can be more balanced and stable when bearing load, reducing the vibration or deformation caused by uneven weight distribution, thereby improving the comfort and service life of the seat.

[0028] Please refer to Figure 2 , Figure 5 As an embodiment of the utility model, a limit block 10 is provided at the rear end of the backrest support plate 2, wherein the side of the limit block 10 abuts against the bending corner of the first fixing rod 5.

[0029] In the above-described scheme, the shape and size of the limit block 10 are designed according to the specific size and shape of the backrest support plate 2 and the first fixed rod 5 to ensure the overall strength and stability of the structure; the position of the limit block 10 corresponds to the bending corner of the first fixed rod 5 so that the two can be closely abutted, so that the limit block 10 can effectively limit the movement of the first fixed rod 5 and maintain the stability of the structure.

[0030] Please refer to Figures 1 to 3 As an embodiment of the utility model, the first fixing rod 5 is made of a high-strength elastic metal material, wherein both ends of the first fixing rod 5 are bent to form a first hook 11; the inner wall of the seat back frame 1 is provided with a limiting groove 12 adapted to the first hook 11, and the inner wall of the limiting groove 12 is provided with a wear-resistant rubber pad (not shown), wherein the first hook 11 is arranged in the limiting groove 12 and movably connected thereto.

[0031] In the above scheme, the first fixing rod 5 is made of elastic alloy material to ensure that it has good strength and elasticity; the first fixing rod 5 is manufactured according to the design drawing, and is bent at both ends to form a first hook 11; a limiting groove 12 is designed on the inner wall of the seat back frame 1, and its shape and size match the first hook 11, and a wear-resistant rubber pad is arranged on the inner wall of the limiting groove 12 to increase the friction between the first hook 11 and the limiting groove 12 to improve the stability of the connection, and the first hook 11 of the first fixing rod 5 is inserted into the limiting groove 12 to ensure that the first hook 11 is tightly connected with the limiting groove 12 and can move freely to adapt to different use states of the seat back; the installed first fixing rod 5 and the limiting groove 12 are tested to ensure that they are firmly and stably connected and can meet the support requirements of the seat back; according to the test results, the first fixing rod 5 and the limiting groove 12 are adjusted as necessary to ensure that they achieve the best use effect, thereby improving the support effect and comfort of the seat back.

[0032] Please refer to Figures 1 to 3 As an embodiment of the utility model, the second fixing rod 6 is made of a high-strength elastic metal material, wherein the two ends of the second fixing rod 6 are bent to form a second hook 13; a tension spring 14 is respectively provided at the lower part of the inner wall of the seat back frame 1 near the two ends of the second fixing rod 6, wherein one end of the tension spring 14 is fixedly connected to the inner wall of the seat back frame 1, and the other end of the tension spring 14 is provided with a connecting member 15; a fixing hole 16 is opened on the connecting member 15, wherein the fixing hole 16 is adapted to the second hook 13.

[0033] In the above scheme, the second fixing rod 6 is made of elastic alloy material to ensure that it has good strength, elasticity and durability; the second fixing rod 6 is manufactured according to the design drawing, and is bent at both ends to form a second hook 13; a tension spring 14 is designed and installed at the position below the inner wall of the seat back frame 1 close to the two ends of the second fixing rod 6, and one end of the tension spring 14 is fixedly connected to the inner wall of the seat back frame 1 to ensure a firm connection; the other end of the tension spring 14 is provided with a connecting piece 15, and the connecting piece 15 is provided with a fixing hole 16 adapted to the second hook 13; by inserting the second hook 13 into the fixing hole 16 on the connecting piece 15 The connection between the second fixing rod 6 and the tension spring 14 is realized in the fixed hole 16; by debugging the connected second fixing rod 6 and the tension spring 14, it is ensured that their connection is firm and stable, and can meet the support and adjustment requirements of the seat back; the installed second fixing rod 6 and the tension spring 14 are tested to check whether their connection is firm and stable, and whether they can withstand the pressure and tension generated by the seat back during use; according to the test results, the connection between the second fixing rod 6 and the tension spring 14 is adjusted and optimized as necessary to ensure that it achieves the best use effect, improves the support effect and comfort of the seat back, and meets the adjustment and stability requirements.

[0034] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A rear seat back support plate, comprising a seat back frame (1), wherein a back support plate (2) is provided inside the seat back frame (1); characterized in that: A weight-reducing hole (3) is symmetrically provided in the middle of the backrest support plate (2), wherein a reinforcing groove (4) is provided around the periphery of the weight-reducing hole (3); a first fixing rod (5) and a second fixing rod (6) are provided at the rear end of the backrest support plate (2), wherein the two ends of the first fixing rod (5) and the second fixing rod (6) are respectively connected to the inner wall of the seat back frame (1); the first fixing rod (5) is bent in a "J" shape, wherein a plurality of first positioning slots (7) are provided at the rear end of the backrest support plate (2), and the plurality of first positioning slots (7) are respectively connected to the first fixing rod (5); the second fixing rod (6) is bent along the lower edge of the backrest support plate (2), wherein a plurality of second positioning slots (9) adapted to the second fixing rod (6) are provided at the rear end of the backrest support plate (2).

2. A rear seat back support plate according to claim 1, characterized in that: A reinforcing rib (8) is provided around the first positioning slot (7).

3. The rear seat back support bracket according to claim 1, characterized in that: A limiting block (10) is provided at the rear end of the backrest support plate (2), wherein the side edge of the limiting block (10) abuts against the bent corner of the first fixing rod (5).

4. The rear seat back support bracket according to claim 1, characterized in that: The first fixing rod (5) is made of a high-strength elastic metal material, wherein both ends of the first fixing rod (5) are bent to form a first hook (11); the inner wall of the seat back frame (1) is provided with a limiting groove (12) adapted to the first hook (11), wherein the first hook (11) is arranged in the limiting groove (12) and is movably connected thereto.

5. The rear seat back support bracket according to claim 1, characterized in that: The second fixing rod (6) is made of a high-strength elastic metal material, wherein two ends of the second fixing rod (6) are respectively bent to form a second hook (13).

6. The rear seat back support bracket according to claim 1, characterized in that: Tension springs (14) are respectively provided at both ends of the lower inner wall of the seat back frame (1) near the second fixing rod (6), wherein one end of the tension spring (14) is fixedly connected to the inner wall of the seat back frame (1), and the other end of the tension spring is provided with a connecting piece (15).

7. The rear seat back support bracket support plate according to claim 6, characterized in that: The connecting member (15) is provided with a fixing hole (16), wherein the fixing hole (16) is adapted to fit the second hook (13).

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