Backrest with front side supporting structure capable of being replaced in personalized mode and automobile seat

Abstract

The utility model discloses a backrest capable of individually replacing a front side supporting structure and an automobile seat, which comprise a backrest assembly, the backrest assembly is provided with a base plate, a left waist and back supporting pad is arranged in the left area of the front side of the base plate, a right waist and back supporting pad is arranged in the right area of the front side of the base plate, and a shoulder and back supporting pad is arranged on the upper portion of the front side of the base plate. The left waist and back supporting pad, the right waist and back supporting pad and the shoulder and back supporting pad are detachably assembled on the base plate. The utility model has the beneficial effects that the left waist and back supporting pad, the right waist and back supporting pad and the shoulder and back supporting pad are all detachably mounted with the base plate, so that the supporting pads can be independently replaced and maintained, and meanwhile, the supporting pads with different thicknesses, hardness, materials and shapes can be provided for users to select and match, and the use is convenient. And the diversified and personalized use requirements of the user are effectively met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, specifically relates to a backrest and automobile seat that can individualized replace front side support structure. BACKGROUND

[0002] In today's automobile seat market, the user's individualized demand for seats is increasing, and more and more users expect to be able to configure the seat according to personal preferences, or to replace the seat of different shapes or colors during use, increase or reduce some function configurations (heating, ventilation, massage, etc.) of the seat.

[0003] However, the appearance and function configuration of the automobile seat on the market are usually fixed at the time of production, and it is difficult to quickly and flexibly replace according to the personal preferences of the user, and the diversified needs of consumers cannot be met.

[0004] Therefore, the utility model has important practical significance and market value. UTILITY MODEL CONTENTS

[0005] Therefore, one of the purposes of the utility model is to provide a backrest that can individualized replace front side support structure, which can meet the individualized selection needs of users.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A backrest that can individualized replace front side support structure, comprising a backrest assembly, the key is that: the backrest assembly has a substrate, the left waist back support pad is arranged on the front side left area of the substrate, the right waist back support pad is arranged on the front side right area, and the shoulder back support pad is arranged on the front side upper part, the left waist back support pad, the right waist back support pad and the shoulder back support pad are all detachably assembled on the substrate.

[0008] With the above structure, the left waist back support pad, the right waist back support pad and the shoulder back support pad are all detachably installed between the substrate, this design makes each support pad can be independently replaced and maintained, at the same time, it can also provide support pads with different thickness, softness, material and shape for users to select, effectively meet the diversified and individualized use needs of users.

[0009] As a preferred, the left waist back support pad, the right waist back support pad, the left waist back support pad and the shoulder back support pad, and the right waist back support pad and the shoulder back support pad all have gaps. With the above structure, the backrest has a beautiful shape, and the modular concept of the seat backrest can be better exhibited.

[0010] As preferred: the lower back supporting pad is detachably mounted on the lower front side of the substrate. With the above structure, the lower back supporting pad can provide comfortable support for the user's lower waist.

[0011] As preferred: the left waist back supporting pad comprises a left waist back supporting plate, a left waist back foam body located on the front side of the left waist back supporting plate, and a left waist back cover covering the surface of the left waist back foam body, the circumferential edge of the left waist back foam body is wrapped on the circumferential edge of the left waist back supporting plate to connect the two as a whole, and the rear side of the left waist back supporting plate is distributed with a connecting structure for fixedly assembling to the substrate. With the above structure, it has the technical advantages of simple structure, convenient production and convenient disassembly and assembly.

[0012] As preferred: the backrest assembly further comprises a metal outer frame, the substrate is mounted on the front side of the metal outer frame, the rear side of the metal outer frame is provided with an outer decorative cover plate, and a hollow area is formed between the substrate and the outer decorative cover plate, and a ventilation system is arranged in the hollow area. With the above structure, the backrest ventilation function is increased in a limited space, which can meet the diversified needs of users.

[0013] As preferred: the ventilation system comprises a first fan and a plurality of air pipes, the first fan has an air inlet end and an air outlet end, one end of each air pipe is connected to the air inlet end of the first fan, and the other end is respectively connected to the shoulder back supporting pad, the left waist back supporting pad and the right waist back supporting pad; or, one end of each air pipe is connected to the air outlet end of the first fan, and the other end is respectively connected to the shoulder back supporting pad, the left waist back supporting pad and the right waist back supporting pad. With the above structure, by connecting a plurality of air pipes to a single first fan, and by connecting the end of each air pipe away from the first fan to each supporting pad, the first fan can ensure that the shoulder back supporting pad, the left waist back supporting pad and the right waist back supporting pad can all achieve ventilation, thereby providing a comfortable riding environment for the user.

[0014] As preferred: the substrate is flexible; the inner end of the left waist back supporting pad is fixedly arranged on the substrate, and the middle part of the left waist back supporting pad is connected to the substrate through a first rotating supporting assembly and can be deflected forward and backward; when the user's back is pressed on the inner end area of the left waist back supporting pad, the left waist back supporting pad can be deflected backward with the first rotating supporting assembly as the fulcrum, so as to form a surrounding support for the user's back with the left waist back supporting pad.

[0015] The elastic reset assembly is arranged between the outer end of the left waist and back supporting pad and the base plate, and is used for resetting the left waist and back supporting pad when the user's back is away from the backrest.

[0016] Preferably, the first rotating support assembly is a ball hinge structure.

[0017] The second purpose of the utility model is to provide an automobile seat, and the key lies in that the seat comprises the backrest.

[0018] Preferably, the seat cushion assembly comprises a supporting bottom plate, a main supporting module is detachably arranged in the middle region of the supporting bottom plate, side wing supporting modules are detachably arranged on both sides of the supporting bottom plate, and a front supporting module is detachably arranged at the front end of the supporting bottom plate.

[0019] Compared with the prior art, the utility model has the advantages of:

[0020] 1. The backrest provided by the utility model can be personalized and replaced, is composed of a plurality of supporting pads, and each supporting pad is detachably arranged, so that each supporting pad can be independently replaced and maintained, the maintenance cost and difficulty are reduced, and the seat backrest can be personalized and configured according to different requirements of users.

[0021] 2. The backrest with a customizable replaceable front support structure provided by this utility model allows the user to lean against the seat back. When the user leans against the backrest, the pressure on the inner end of the left lumbar support pad is greater than that on the outer end. Furthermore, the base plate is flexible, so during the pressure application, the left lumbar support pad can rotate backward around the first rotating support component as a fulcrum. This means the left lumbar support pad moves along a swinging trajectory from the inner end backward to the outer end forward, thus providing a wraparound support for the user's back. Simultaneously, the elastic reset component can lift the outer end of the base plate forward, thereby improving the backrest's ability to wrap around the user's back. When the user's back moves forward away from the backrest, the base plate returns to its initial state, and the elastic reset component resets the left lumbar support pad. This means the elastic reset component rotates the outer end of the left lumbar support plate backward and resets it, thus restoring the left lumbar support pad to its initial state. The elastic reset component not only ensures that the left lumbar support pad can automatically reset after being subjected to force, improving the convenience and comfort of using the seat, but also eliminates the installation gap between the left lumbar support pad and the base plate when supporting the user's back, ensuring riding comfort.

[0022] 3. Because the base plate is flexible, it can adaptively adjust to the deformation of the left lumbar support pad and the dynamic changes in the human body posture, further enhancing the seat's embracing support effect and improving the user experience.

[0023] 4. The elastic reset component not only ensures that the left lumbar support pad can automatically reset after being subjected to force, improving the convenience and comfort of the seat, but also eliminates the installation gap between the left lumbar support pad and the base plate when supporting the user's back, ensuring riding comfort.

[0024] 5. The car seat provided by this utility model adopts a modular design for both the backrest and the seat cushion. Each support pad and module can be disassembled and installed. This makes it easy and quick to replace a damaged module or support pad when it needs to be upgraded, reducing maintenance costs and difficulty. It also makes it easy to personalize the seat according to the needs of different users. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a car seat;

[0026] Figure 2 This is a schematic diagram illustrating the structure of a car seat back.

[0027] Figure 3 A schematic diagram illustrating the backrest and side structure;

[0028] Figure 4 A schematic diagram of the structure in which the various support plates are installed on the backrest;

[0029] Figure 5 is a sectional view showing the structure of the first rotating support assembly 2;

[0030] Figure 6 is an exploded view of the left lumbar support pad 3;

[0031] Figure 7 is a view showing the structure of the back side of the left lumbar support pad 3;

[0032] Figure 8 is a view showing the structure of the ventilation system 6;

[0033] Figure 9 is a view showing the installation position of the elastic return assembly 4;

[0034] Figure 10 is a sectional view of the elastic return assembly 4;

[0035] Figure 11 is an exploded view of the main support module C, the side wing support module D and the front support module E as a whole and the support base plate B1;

[0036] Figure 12 is a view showing the structure of the support base plate B1;

[0037] Figure 13 is a view showing the structure of the installation of each support plate on the support base plate B1;

[0038] Figure 14 is an exploded view of the main support module C, the side wing support module D and the front support module E. DETAILED DESCRIPTION

[0039] The utility model will be further described below in combination with the embodiments and the drawings.

[0040] As shown in Figure 1 , an automobile seat comprises a backrest, the backrest comprising a backrest assembly A, the backrest assembly A having a base plate A1, a left lumbar support pad 3 being arranged on the front side left area of the base plate A1, a right lumbar support pad 8 being arranged on the front side right area of the base plate A1, and a shoulder support pad 1 being arranged on the front side upper area of the base plate A1, the left lumbar support pad 3, the right lumbar support pad 8 and the shoulder support pad 1 being detachably assembled on the base plate A1.

[0041] Based on the above structural design, the left lumbar support pad 3, the right lumbar support pad 8 and the shoulder support pad 1 are detachably installed with the base plate A1, this design enables the support pads to be independently replaced and maintained, reduces the maintenance cost and difficulty, and also provides support pads of different thicknesses, softness, materials and shapes for users to select and match, effectively meeting the diversified and personalized use requirements of users.

[0042] Further,Figure 1 It can be seen that there are gaps between the left waist back supporting pad 3 and the right waist back supporting pad 8, between the left waist back supporting pad 3 and the shoulder back supporting pad 1, and between the right waist back supporting pad 8 and the shoulder back supporting pad 1. Such a structural design makes the backrest have a beautiful shape and can better show the modular concept of the seat backrest.

[0043] Reference Figure 1 , 4 and 6, the left waist back supporting pad 3 comprises a left waist back supporting plate 31 detachably connected to the base plate A1, a left waist back foam body 32 arranged on the front side of the left waist back supporting plate 31, and a left waist back surface cover 33 covering the surface of the left waist back foam body 32, in combination with Figure 6 and Figure 7 It can be seen that the circumferential edge of the left waist back foam body 32 is wrapped on the circumferential edge of the left waist back supporting plate 31 to connect the two as a whole. The rear side of the left waist back supporting plate 31 is distributed with a connecting structure 9 for fixedly assembling to the base plate A1. In the embodiment, the left waist back supporting pad 3 and the right waist back supporting pad 8 are symmetrically arranged on the base plate A1, and the right waist back supporting pad 8 has the same structure as the left waist back supporting pad 3, which will not be described here. Similarly, the shoulder back supporting pad 1 comprises a shoulder back supporting plate 11 detachably connected to the base plate A1, a shoulder back foam body 12 arranged on the shoulder back supporting plate 11, and a shoulder back surface cover covering the surface of the shoulder back foam body 12, and the circumferential edge of the shoulder back foam body 12 is wrapped on the circumferential edge of the shoulder back supporting plate 11. In this way, each supporting pad is composed of three basic components, i.e., the supporting plate, the foam body, and the surface cover, which has the technical advantages of simple structure, convenient production, low cost, and convenient disassembly and assembly. The foam body is directly wrapped on the circumferential edge of the supporting plate, which saves additional fasteners and reduces assembly steps. At the same time, the supporting plate is fixedly assembled to the base plate A1 through the connecting structure 9, which improves the convenience of disassembly and assembly of each supporting pad and can be applied to the modular architecture of the seat backrest.

[0044] As shown in Figure 4 and Figure 9 , in the embodiment, the base plate A1 is flexible, the inner end of the left waist back supporting pad 3, i.e., the right end, is fixedly arranged on the base plate A1, the middle part of the left waist back supporting pad 3 is connected to the base plate A1 through the first rotating supporting assembly 2 to be able to pivot forward and backward, and the outer end of the left waist back supporting pad 3, i.e., the left end, is provided with the elastic reset assembly 4 between the base plate A1.

[0045] When the user leans on the seat back, the user's back is pressed against the inner end region of the left waist and back support pad 3, at this time, the pressure on the inner end of the left waist and back support pad 3 is greater than that on the outer end, and in addition, the base plate A1 is flexible, so that during the pressing of the left waist and back support pad 3, the left waist and back support pad 3 can be deflected backward as a whole with the first rotating support assembly 2 as the fulcrum, that is, the left waist and back support pad 3 moves in a swinging track with the inner end moving backward and the outer end moving forward, so as to realize the encircling support of the user's back. At the same time, the elastic reset assembly 4 can drive the outer end of the base plate A1 to be lifted forward, thereby improving the wrapping of the backrest on the side of the user's back. When the user's back moves forward away from the backrest, the base plate A1 can return to the initial state, and the elastic reset assembly 4 can reset the left waist and back support pad 3, that is, the elastic reset assembly 4 drives the outer end of the left waist and back support plate 31 to rotate backward and reset, so as to restore the left waist and back support pad 3 to the initial state. The arrangement of the elastic reset assembly 4 not only ensures that the left waist and back support pad 3 can be automatically reset after being stressed, thereby improving the convenience and comfort of the seat, but also eliminates the installation gap between the left waist and back support pad 3 and the base plate A1 when the user's back is encircled, thereby ensuring the comfort of the seat.

[0046] On the other hand, since the base plate A1 is flexible, the base plate A1 can be self-adaptively adjusted according to the deformation of the left waist and back support pad 3 and the dynamic change of the human body posture, thereby further enhancing the encircling support effect of the seat on the human body and improving the user experience.

[0047] In the embodiment, the first rotating support assembly 2 is a spherical hinge structure arranged between the left waist and back support pad 3 and the base plate A1. When the left waist and back support pad 3 is stressed by the user's back, the left waist and back support pad 3 can rotate backward with the spherical hinge as the center, and the spherical hinge structure can increase the flexibility of the rotation of the left waist and back support pad 3, so as to better adapt to the user's back.

[0048] The specific structure of the first rotating support assembly 2 is as follows: please refer to Figure 4 and 5 The base plate A1 is provided with a rearwardly extending mounting groove A11, and the first rotating support assembly 2 includes a spherical hinge seat 21 and a ball head 22 matched with the spherical hinge seat 21, wherein the spherical hinge seat 21 is fixedly installed in the mounting groove A11, and the ball head 22 is fixedly installed on the rear side of the left waist and back support plate 31. When the left waist and back support pad 3 is stressed by the user's back, the right end of the left waist and back support plate 31 can rotate backward with the spherical hinge seat 21 as the center.

[0049] In the embodiment, two first rotating support assemblies 2 are arranged, and the two first rotating support assemblies 2 are located on the deflection center line of the left waist and back support pad 3 and are arranged in the height direction of the left waist and back support pad 3. The two groups of first rotating support assemblies 2 can effectively disperse the pressure, avoid structural deformation or damage caused by single-point stress, and also make the movement of the left waist and back support plate 31 more stable and smooth when rotating.

[0050] Further, as shown in Figure 9 and 10 The elastic reset assembly 4 includes a first mounting seat 41, a second mounting seat 42, and an elastic element 43 arranged between the first mounting seat 41 and the second mounting seat 42. In this embodiment, the elastic element 43 is a tension spring. The first mounting seat 41 is arranged on the inner side of the outer end of the left waist and back support plate 31, and the second mounting seat 42 is arranged on the side of the base plate A1 opposite the first mounting seat 41. The two ends of the tension spring are connected to the first mounting seat 41 and the second mounting seat 42, respectively. When the inner end of the left waist and back support pad 3 is pressed to rotate backward, the outer end of the left waist and back support plate 31 lifts the first mounting seat 41 forward, causing the tension spring to be stretched. When the user's back moves forward away from the backrest, the outer end of the base plate A1 resets backward, releasing the elastic potential energy of the tension spring, which can reset the outer end of the left waist and back support plate 31, thereby restoring the left waist and back support pad 3 to its original state.

[0051] As shown in Figure 3 The inner end of the left waist and back support plate 31 is fixedly connected to the base plate A1 by a connecting structure 9. Specifically, as shown in Figure 6 The connecting structure 9 includes a hanging hole 91 arranged on the base plate A1 and a hanging column 92 protruding backward on the back side of the left waist and back support plate 31. The hanging column 92 can be stably supported in the hanging hole 91, ensuring the convenience and stability of the installation of the left waist and back support plate 31.

[0052] Further, as shown in Figure 3 and Figure 6 The hanging hole 91 includes a guide section 911 and a fixed section 912 that are sequentially connected from top to bottom. The guide section 911 is designed to be wide at the top and narrow at the bottom, with an inclined inner wall that can guide the hanging column 92 during installation, facilitating the smooth entry of the hanging column 92 into the hanging hole 91. The rear end of the hanging column 92 is provided with a limiting portion 921, which has a larger diameter than the hanging column 92. During installation, the left waist and back support plate 31 is hung from top to bottom, with the limiting portion 921 passing through the guide section 911. The hanging column 92 enters the fixed section 912 downward under the guidance of the guide section 911 and is stably fixed at the bottom of the fixed section 912. At this time, the limiting portion 921 can prevent the hanging column 92 from coming out of the fixed section 912, ensuring the stable and reliable connection of the left waist and back support plate 31 to the base plate A1.

[0053] In addition to the above-mentioned embodiments, the connecting structure 9 can also be designed such that the hanging hole 91 is arranged on the left waist and back support plate 31, and the hanging column 92 is arranged on the base plate A1 (not shown in the figure).

[0054] In the embodiment, two groups of connection structures 9 are provided, and the two groups of connection structures 9 are distributed along the height direction of the left waist and back supporting plate 31. This layout significantly enhances the stability of the connection between the left waist and back supporting plate 31 and the base plate A1, so that the left waist and back supporting plate 31 can be balanced under stress.

[0055] Please refer to Figure 1 and Figure 4 The shoulder and back supporting pad 1 is arranged on the upper region of the base plate A1 and can be deflected up and down by the second rotating supporting assembly 5. The second rotating supporting assembly 5 can be arranged at the middle or upper region of the shoulder and back supporting pad 1. In the embodiment, the second rotating supporting assembly 5 is arranged at the middle of the shoulder and back supporting pad 1, and two groups of the second rotating supporting assembly 5 are arranged at the two ends of the shoulder and back supporting pad 1 in the width direction. When a user leans on the seat back, the shoulder and back supporting pad 1 can be deflected backward at the lower end with the fulcrum of the second rotating supporting assembly 5 according to the pressure and angle of the upper body of the user, so as to better fit the shoulder of the user and provide more accurate and effective support for the shoulder. In the embodiment, the structure of the second rotating supporting assembly 5 is the same as that of the first rotating supporting assembly 2, which will not be described here.

[0056] Please refer to Figure 2 The backrest assembly A further includes an n-shaped metal frame A2, the base plate A1 is arranged on the front side of the metal frame A2, and the rear side of the metal frame A2 is provided with an outer cover plate (not shown in the figure). A hollow region is formed between the base plate A1 and the outer cover plate, and the ventilation system 6 is arranged in the hollow region. In this way, the ventilation function of the backrest is added in the limited space, which has the advantages of reasonable layout and compactness.

[0057] Please refer to Figure 2 and 8 The ventilation system 6 includes a first fan 61 and a plurality of air pipes 62. The first fan 61 has an air inlet end and an air outlet end. One end of each air pipe 62 is connected to the air inlet end of the first fan 61, and the other end is connected to the shoulder and back supporting pad 1, the left waist and back supporting pad 3, and the right waist and back supporting pad 8, respectively. When the first fan 61 works, it can suck the cold air in the car to the surface of the shoulder and back supporting pad 1, the left waist and back supporting pad 3, and the right waist and back supporting pad 8 through the air pipes 62, thereby achieving rapid cooling of the backrest. Alternatively, one end of each air pipe 62 is connected to the air outlet end of the first fan 61, and the other end is connected to the shoulder and back supporting pad 1, the left waist and back supporting pad 3, and the right waist and back supporting pad 8, respectively. The first fan 61 guides the airflow to the shoulder and back supporting pad 1, the left waist and back supporting pad 3, and the right waist and back supporting pad 8 through the air pipes 62, and then the airflow flows out from the surface of the shoulder and back supporting pad 1, the left waist and back supporting pad 3, and the right waist and back supporting pad 8, thereby achieving the ventilation function of the backrest. In the embodiment, the one end of the air pipe 62 connected to the air outlet end of the first fan 61 will be described as an example.

[0058] Therefore, by connecting multiple air ducts 62 to the single first air fan 61, and by connecting each end of each air duct 62 away from the first air fan 61 to a respective support pad, the first air fan 61 can be operated to ensure that the shoulder and back support pad 1, the left waist and back support pad 3, and the right waist and back support pad 8 can all be ventilated, thereby providing a comfortable ride for the user.

[0059] To improve the efficiency of ventilation and heat dissipation, with reference to Figure 1 , the left waist and back foam body 32 and the shoulder and back foam body 12 are both provided with air-permeable holes a, and after the airflow blown by the first air fan 61 is transported to the corresponding module through the air duct 62, it can quickly pass through the air-permeable holes a and directly act on the human back, providing the user with the most direct ventilation experience and significantly improving the user's comfort during the ride.

[0060] In this embodiment, the first air fan 61 and the air duct 62 are arranged on the back side of the base plate A1. Such a structure design has the advantages of reasonable layout and compactness.

[0061] By Figure 8 It can be seen that the first air fan 61 is connected to four air ducts 62, two of which are in communication with the left waist and back support pad 3 and the right waist and back support pad 8, respectively. Since the shoulder and back support pad 1 covers the entire shoulder area of the backrest, its area is relatively large, therefore, to ensure the ventilation effect, the remaining two air ducts 62 are in communication with the shoulder and back support pad 1, and these two air ducts 62 are located at the two ends of the shoulder and back support pad 1 in the width direction. Such a design allows the number of air ducts 62 to be connected according to the coverage area and ventilation requirements of different support pads, thereby ensuring that each support pad can obtain sufficient airflow and improving the ventilation performance of the seat, so that the user's back can always remain dry and comfortable during the ride.

[0062] Further, as Figure 2 shown, the base plate A1 is provided with a relief hole A12, and the air duct 62 can extend from the back side of the base plate A1 to the front side through the relief hole A12 and be in communication with the corresponding support pad. Such a design improves the compactness of the overall structure.

[0063] In this embodiment, the shoulder and back support pad 1, the left waist and back support pad 3, and the right waist and back support pad 8 are connected to the corresponding air duct 62 in a detachable manner. Such a design has the advantages of convenient replacement and maintenance.

[0064] Please refer to Figure 1The left waist and back foam body 32 is provided with a mounting groove 321 on the front side, which is used to install a massage component to make the left waist and back support pad 3 have a massage function. In this embodiment, the massage component is a massage air bag, and at least two mounting grooves 321 are provided on the left waist and back foam body 32. By reserving the mounting groove 321 on the front side of the left waist and back foam body 32, the user can select the left waist and back support pad 3 with a massage function according to needs. In addition, different positions of the massage air bag can massage different areas of the back, and the user can selectively turn on or off different massage air bags according to the degree of fatigue and needs, to achieve personalized massage experience.

[0065] In this embodiment, the left waist and back support pad 3, the right waist and back support pad 8, and the shoulder and back support pad 1 are all integrated with heating components, which are heating pads that can be installed inside the corresponding face cover to achieve a back heating function.

[0066] Reference Figure 1 The lower back support pad 20 is detachably mounted on the lower part of the front side of the substrate A1, which can provide comfortable support for the lower waist of the user. Combined with Figure 3 As shown, the lower end of the lower back support pad 20 has a folding edge 201 extending backward, which can cover the lower end of the substrate A1, playing a role of protecting the substrate A1. The lower back support pad 20 cooperates with the left waist and back support pad 3 and the shoulder and back support pad 1 to provide more coherent and comprehensive support for the user from the lower waist to the back and shoulders, further improving the comfort and safety of the ride.

[0067] As shown in Figure 1 The automobile seat further comprises a seat cushion assembly B, which has a support bottom plate B1, a main support module C is detachably mounted on the upper middle area of the support bottom plate B1, side wing support modules D are detachably mounted on both sides of the support bottom plate B1, and a front support module E is detachably mounted on the front end of the support bottom plate B1. In this way, the main support module C, the side wing support module D, and the front support module E can provide support for the user's hips, the sides of the thighs, and the front of the thighs, respectively. The detachable design also has the advantage of being easy to install and detach, and the user can select different materials, shapes, and hardness of the support modules according to their body type and riding habits, effectively meeting the user's diverse and personalized use needs.

[0068] Further, combined with Figure 11 and Figure 12As shown, the support bottom plate B1 is provided with two side wing supports B11 extending upward, and two groups of side wing support modules D are assembled on the two groups of side wing supports B11. The two groups of side wing support modules D are arranged obliquely and can provide lateral support for the sides of the user's hips and legs, thereby improving the comfort of the user's sitting. The front end of the support bottom plate B1 is provided with a downwardly recessed groove B12, and the front support module E is assembled in the groove B12. This design can ensure the accuracy of the installation position of the front support module E and make the front support module E more compactly connected with the support bottom plate B1, thereby enhancing the structural stability.

[0069] In combination with Figure 1 And Figure 11 As shown, the front support module E includes a horizontal section E1 and a bent section E2 located at the front end of the horizontal section E1. The horizontal section E1 is located in the groove B12 and can ensure the stability of the installation of the front support module E. The bent section E2 covers the front side of the support bottom plate B1 and can protect the front end of the support bottom plate B1 and provide support for the back of the user's legs, thereby improving the comfort of the user's legs and better meeting the ergonomic requirements.

[0070] As shown by Figure 1 And Figure 11 In this embodiment, the tail vertebra support module 7 is detachably installed at the rear end of the support bottom plate B1 and can provide comfortable support for the tail vertebra area at the back of the user's hips.

[0071] Please refer to Figure 13 And 14 The main support module C includes a main support plate C1 and a middle foam C2 arranged on the main support plate C1, and the main support plate C1 is detachably connected with the support bottom plate B1. The side wing support module D includes a side wing support plate D1 and a side wing foam D2 arranged on the side wing support plate D1, and the side wing support plate D1 is detachably connected with the support bottom plate B1. The two groups of side wing support modules D are arranged symmetrically. The front support module E includes a front support plate E3 and a front end foam E4 arranged on the front support plate E3, and the front support plate E3 is detachably connected with the support bottom plate B1. The connection between the above-mentioned support plates and the support bottom plate B1 can be achieved by a hanging connection or a fixed connection or a combination of the two. The specific structure of the hanging connection can refer to the structure of the above-mentioned connection structure 9, which will not be described here.

[0072] In this embodiment, the foam in the modules of the seat cushion assembly B is arranged in a ring sleeve manner around the circumferential edge of the corresponding support plate. This design improves the assembly convenience while increasing the connection strength.

[0073] Please refer to Figures 12 to 14The bottom of the supporting bottom plate B1 is provided with a second fan 10 installed towards the main supporting module C. The supporting bottom plate B1 and the main supporting plate C1 are both provided with air holes b opposite to the second fan 10. The middle foam C2 is distributed with air permeable holes a. The second fan 10 is started, and ventilation and heat dissipation can be achieved through the air permeable holes a. In this way, the ventilation function of the seat cushion is increased, the seat part is always dry and comfortable, and the comfort of the user in the seat is further improved.

[0074] In the embodiment, a heating pad is also arranged in the main supporting module C. The heating pad can be arranged on the upper side of the middle foam C2, so that the seat cushion has a heating function, and the comfort of the seat is further improved.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and those skilled in the art can make various similar expressions under the inspiration of the present application without departing from the purpose and claims of the present application. Such changes fall within the scope of the present application.

Claims

1. A backrest with a customizable front support structure, comprising a backrest assembly (A), characterized in that: The backrest assembly (A) has a base plate (A1). The left front side of the base plate (A1) has a left lumbar support pad (3), the right front side has a right lumbar support pad (8), and the upper front side has a shoulder support pad (1). The left lumbar support pad (3), the right lumbar support pad (8), and the shoulder support pad (1) are all detachably mounted on the base plate (A1).

2. The backrest with a customizable replaceable front support structure according to claim 1, characterized in that: There are gaps between the left lumbar support pad (3) and the right lumbar support pad (8), between the left lumbar support pad (3) and the shoulder and back support pad (1), and between the right lumbar support pad (8) and the shoulder and back support pad (1).

3. The backrest with a customizable replaceable front support structure according to claim 1, characterized in that: The lower front region of the substrate (A1) is detachably fitted with a back support pad (20).

4. The backrest with a customizable replaceable front support structure according to claim 1, characterized in that: The left back support pad (3) includes a left back support plate (31), a left back foam (32) located in front of the left back support plate (31), and a left back cover (33) covering the surface of the left back foam (32). The circumferential edge of the left back foam (32) wraps around the circumferential edge of the left back support plate (31) so that the two are connected as a whole. A connecting structure (9) is distributed on the rear side of the left back support plate (31). The connecting structure (9) is used to fix and assemble it to the substrate (A1).

5. The backrest with a customizable replaceable front support structure according to claim 1, characterized in that: The backrest assembly (A) also includes a metal frame (A2), the base plate (A1) is mounted on the front side of the metal frame (A2), the metal frame (A2) is provided with an exterior cover plate on the rear side, and a hollow area is formed between the base plate (A1) and the exterior cover plate, and a ventilation system (6) is arranged in the hollow area.

6. The backrest with a customizable replaceable front support structure according to claim 5, characterized in that: The ventilation system (6) includes a first fan (61) and multiple air ducts (62). The first fan (61) has an air inlet and an air outlet. One end of each air duct (62) is connected to the air inlet of the first fan (61), and the other end is connected to the shoulder and back support pad (1), the left waist and back support pad (3), and the right waist and back support pad (8), respectively. Alternatively, one end of each air duct (62) is connected to the air outlet of the first fan (61), and the other end is connected to the shoulder and back support pad (1), the left waist and back support pad (3), and the right waist and back support pad (8), respectively.

7. The backrest with a customizable replaceable front support structure according to claim 1, characterized in that: The substrate (A1) is flexible; the inner end of the left back support pad (3) is fixed on the substrate (A1), and the middle part of the left back support pad (3) is connected to the substrate (A1) by a first rotating support assembly (2) in a forward and backward deflection manner; when the user's back is pressed on the inner end area of ​​the left back support pad (3), the left back support pad (3) can be deflected backward with the first rotating support assembly (2) as the fulcrum, so that the left back support pad (3) forms a wrap-around support for the user's back; An elastic reset component (4) is provided between the outer end of the left back support pad (3) and the base plate (A1). When the user's back is facing forward and away from the backrest, the elastic reset component (4) is used to reset the left back support pad (3).

8. The backrest with a customizable replaceable front support structure according to claim 7, characterized in that: The first rotating support assembly (2) is a ball joint structure.

9. A car seat, characterized in that: The seat includes the backrest as described in any one of claims 1 to 8.

10. The automobile seat according to claim 9, characterized in that: It also includes a seat cushion assembly (B) having a support base plate (B1), a main support module (C) detachably mounted in the central region of the support base plate (B1), side wing support modules (D) detachably mounted on both sides of the support base plate (B1), and a front support module (E) detachably mounted at the front end of the support base plate (B1).

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