Automobile seat back bag

Abstract

The utility model discloses a kind of automobile seat back bags, the automobile seat back bag includes back bag shell, lining, elastic band, fold page;The lining is fixed in the first side of the back bag shell;The fold page is fixed in the left side edge, right side edge and bottom edge of the first side of the back bag shell by the lining;The elastic band is fixed in the top edge of the first side of the back bag shell by the lining;Wherein, the elastic band is matched with the fold page, for adjusting the opening and closing state of the back bag shell.The utility model has single-layer rigid shell structure's automobile seat back bag and assembly type backboard assembly, this design not only discards double-shell structure, also cancels traditional coating process, to realize the organic combination of rigid support, low production cost and light weight.

Description

Technical Field

[0001] This utility model belongs to the automotive field, and specifically relates to a car seat back pocket. Background Technology

[0002] Car seat map pockets (i.e., car seat back pockets) are an important storage structure on the seat back, but their current forms have many drawbacks. The common soft leather / fabric stitching method, while simple in design, lacks rigid support. In daily use, due to the inability to provide effective rigid support, durability is poor, load-bearing capacity is limited, and the open area of ​​the map pocket is prone to deformation, seriously affecting the user experience and failing to meet users' needs for stable storage components.

[0003] While double-layer and single-layer shell coverings enhance the load-bearing capacity and overall texture of map bags to some extent, they also present significant drawbacks in the manufacturing process. These structures require multiple injection molding and covering processes, significantly increasing mold development costs. The complex processes place high demands on production equipment, further raising production costs. Simultaneously, the resulting weight after multiple processing steps contradicts the current automotive industry's trend towards lightweighting to reduce energy consumption and improve performance. Achieving an ideal balance between cost control and lightweighting is difficult, failing to meet the evolving needs of the automotive industry. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a car seat back bag to solve the problems of the existing technology failing to meet users' needs for the stability and durability of storage components, high production costs, and large product weight.

[0005] The technical effect to be achieved by this utility model is accomplished through the following solution:

[0006] A car seat back pocket, the car seat back pocket comprising a back pocket shell, a liner, elastic bands, and flaps;

[0007] The liner is fixed to the first side of the back bag housing;

[0008] The flap is fixed to the left, right, and bottom edges of the first side of the back bag housing by the liner;

[0009] The elastic band is fixed to the top edge of the first side of the back bag housing by the liner;

[0010] The elastic band works in conjunction with the hinge to adjust the opening and closing state of the back pocket housing.

[0011] Optionally, the lining includes two first linings, two second linings, and one third lining; the hinge includes a first hinge, a second hinge, and a third hinge, wherein the first hinge is disposed on the left edge of the first side of the backpack housing, the second hinge is disposed on the right edge of the first side of the backpack housing, and the third hinge is disposed on the bottom edge of the first side of the backpack housing; the first side of the backpack housing is provided with two first grooves, two second grooves, and one third groove; the elastic band includes a first elastic band and a second elastic band.

[0012] Optionally, the dimensions of the first groove are configured to form an interference fit with the first liner, and the first groove is used to embed the first liner; the dimensions of the second groove are configured to form an interference fit with the second liner, and the second groove is used to embed the second liner; the dimensions of the third groove are configured to form an interference fit with the third liner, and the third groove is used to embed the third liner.

[0013] Optionally, the first liner is provided with a first triangular rib located at the upper and lower edges of the first liner, a second triangular rib located at the center of the first liner, and a fourth groove, wherein the fourth groove is provided in the area between the first triangular ribs, and the second triangular rib is also located in the middle of the fourth groove.

[0014] Optionally, the connecting portion of the first elastic band is provided with a first opening, the first opening matching the second triangular rib of a first liner, the second triangular rib being connected to a first groove through the first opening, the connecting portion of the first elastic band matching the fourth groove of the first liner, and the first triangular rib located at the upper and lower edges of the first liner being directly connected to the first groove; the connecting portion of the second elastic band is provided with a second opening, the second opening matching the second triangular rib of another first liner, the second triangular rib being connected to another first groove through the second opening, the connecting portion of the second elastic band matching the fourth groove of another first liner, and the first triangular rib located at the upper and lower edges of the first liner being directly connected to the first groove.

[0015] Optionally, the second liner is provided with a third triangular rib located at the upper edge, lower edge and left / right edge of the second liner, a fourth triangular rib located away from the left / right edge of the third triangular rib in the second liner and a fifth groove, wherein the fifth groove is provided in the area between the third triangular ribs.

[0016] Optionally, the connecting portion of the first fold is provided with a third opening, which matches the fourth triangular rib of a second liner. The fourth triangular rib can be connected to a second groove through the third opening. The connecting portion of the first fold matches the fifth groove of a second liner, and the fourth triangular rib in the second liner can be directly connected to the second groove. The connecting portion of the second fold is provided with a fourth opening, which matches the fourth triangular rib of another second liner. The fourth triangular rib can be connected to another second groove through the fourth opening. The connecting portion of the second fold matches the fifth groove of another second liner, and the fourth triangular rib in the second liner can be directly connected to the second groove.

[0017] Optionally, the third liner is provided with a fifth triangular rib located on the left edge, right edge and lower edge of the third liner, a sixth triangular rib located on the fifth triangular rib away from the lower edge of the third liner and a sixth groove, wherein the sixth groove is provided in the area between the fifth triangular ribs.

[0018] Optionally, the connecting portion of the third fold is provided with a fifth opening, which matches the fifth triangular rib of the third liner. The fifth triangular rib can be connected to the third groove through the fifth opening. The connecting portion of the third fold matches the sixth groove of the third liner, and the fifth triangular rib in the third liner can be directly connected to the third groove.

[0019] Optionally, the two first grooves, two second grooves, and one third groove on the first side of the backpack shell are interconnected; the two first lining plates, the two second lining plates, and the one third lining plate are injection molded into one lining plate; and the first flap, the second flap, the third flap, the first elastic band, and the second elastic band are sewn into a single integral assembly; or,

[0020] The first elastic band and one of the first lining plates are fixed as a first component, the second elastic band and another of the first lining plates are fixed as a second component, the first hinge and one of the second lining plates are fixed as a third component, the second hinge and another of the second lining plates are fixed as a fourth component, and the third hinge and the third lining plate are fixed as a fifth component; wherein the fixing method includes at least one of the following: sewing, gluing, and rivet fixing.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] Cost reduction: This invention eliminates the traditional encapsulation process, adopting a single-layer rigid shell structure, thus reducing production steps. Compared to double-layer and single-layer shell encapsulation structures, it greatly simplifies mold development and reduces the requirements for production equipment, thereby effectively reducing production costs and improving the product's competitiveness in the market.

[0023] Lightweight design: Abandoning the double-shell structure and using a single-layer rigid shell, the weight of the car seat back pocket is significantly reduced, aligning with the automotive industry's trend towards lightweight design. Lightweight car seat back pockets help reduce overall vehicle weight, decrease energy consumption, and improve overall vehicle performance.

[0024] Robust Structure: The interplay between the bag shell, lining, elastic bands, and hinges ensures a tight connection and precise positioning of each component. This design not only guarantees the rigid support of the car seat back pocket, giving it better load-bearing capacity, but also enhances the overall structural stability and improves the durability of the car seat back pocket.

[0025] Easy to use: With the elastic band and hinge adjustment function, users can easily control the opening and closing of the car seat back pocket. The operation is simple and flexible, which greatly improves the convenience of use and meets the diverse needs of users in actual use.

[0026] Flexible design: The fit between the bag shell, lining, elastic band, and flaps can be adjusted according to actual needs, adapting to different car seat designs and usage scenarios, thus improving the product's versatility and applicability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0028] Figure 1 This is an exploded view of the car seat back pocket in this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the back bag shell in this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the first liner in this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the second liner in this utility model;

[0032] Figure 5This is a schematic diagram of the structure of the third liner in this utility model;

[0033] Figure 6 This is a schematic diagram of the elastic band structure in this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the first and second folds in this utility model;

[0035] Figure 8 This is a schematic diagram of the structure of the third fold in this utility model;

[0036] Figure 9 This is a schematic diagram of the structure of the first component and the second component in this utility model;

[0037] Figure 10 This is a schematic diagram of the structure of the third and fourth components in this utility model;

[0038] Figure 11 This is a schematic diagram of the structure of the fifth component in this utility model;

[0039] Figure 12 This is a schematic diagram of the structure of the car seat back pocket in this utility model;

[0040] Figure 13 This is a schematic diagram of the structure of the first component and the second component in this utility model;

[0041] Figure 14 This is a schematic diagram of the structure of the third and fourth components in this utility model;

[0042] Figure 15 This is a schematic diagram of the structure of the fifth component in this utility model. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0046] See attached document Figure 1 , 12 This utility model relates to a car seat back cover, comprising a back cover shell 1, a liner, an elastic band, and a hinge. The liner can be fixed to a first side of the back cover shell, for example, the back of the seat. The hinge can be fixed to the left, right, and bottom edges of the first side of the back cover shell via the liner. The elastic band can be fixed to the top edge of the first side of the back cover shell via the liner. The elastic band, in conjunction with the hinge, is used to adjust the opening and closing state of the back cover shell. It is understood that during actual use, the user can utilize the adjustment functions of the elastic band and the hinge to control the opening and closing state of the car seat back cover, greatly improving the convenience and flexibility of use.

[0047] In some embodiments, such as Figure 1 As shown, the liner includes two first liner plates 2, two second liner plates 3, and one third liner plate 4.

[0048] The fold includes a first fold 611, a second fold 612, and a third fold 7. The first fold 611 and the second fold 612 are located in... Figure 1 The numbers 6 and 7 can be used to represent the same thing. The first flap 611 and the second flap 612 are basically the same. The first flap 611 is located on the left edge of the first side of the backpack housing 1, the second flap 612 is located on the right edge of the first side of the backpack housing 1, and the third flap 7 is located on the bottom edge of the first side of the backpack housing 1. Figure 2 As shown, the first side of the back bag shell 1 is provided with two first grooves (first groove 11 and first groove 12, respectively), two second grooves (second groove 13 and second groove 14, respectively) and one third groove 15; the elastic band 5 includes a first elastic band 511 and a second elastic band 512.

[0049] The first groove (first groove 11 and first groove 12) is sized to form an interference fit with the first liner 2, and the first groove is used to embed the first liner. The second groove (second groove 13 and second groove 14) is sized to form an interference fit with the second liner 3, and the second groove is used to embed the second liner. The third groove 15 is sized to form an interference fit with the third liner 4, and the third groove 15 is used to embed the third liner 4. It can be understood that the back of the bag housing 1 has 5 sets of grooves 11-15 (i.e., first groove 11 and first groove 12, second groove 13 and second groove 14, and third groove 15), and the width of grooves 11-15 is slightly larger than the corresponding liner (i.e., 2 first liners 2, 2 second liners 3, and 1 third liner 4), for embedding the corresponding liner. Furthermore, the grooves 13, 14, and 15 of the bag housing 1 can be 3 independent grooves or can be connected into one groove to adapt to different design and usage requirements.

[0050] In one implementation, such as Figure 3 As shown, the first liner 2 is provided with a first triangular rib 22 located at the upper and lower edges of the first liner 2, a second triangular rib 23 located at the center of the first liner 2, and a fourth groove 21. The fourth groove 21 is located in the area between the first triangular ribs 22, and the second triangular rib 23 is also located in the middle of the fourth groove 21. Correspondingly, as... Figure 6As shown, the connecting portion of the first elastic band 511 is provided with a first opening 51. The first opening 51 matches the second triangular rib 23 of the first liner 2. The second triangular rib 23 can be connected to the first groove 11 through the first opening 51. The connecting portion of the first elastic band 511 matches the fourth groove 21 of the first liner 2. The first triangular rib 22 located on the upper and lower edges of the first liner 2 can be directly connected to the first groove 11. It can be understood that the second triangular rib 23 can be fixed by connecting to the first groove 11 through the first opening 51. The first triangular rib 22 located on the upper and lower edges of the first liner 2 can be directly connected to the first groove 11 for fixation without going through the first liner 2. The fixing method is not limited to sewing, gluing, or nailing. The connecting portion of the second elastic band 512 is provided with a second opening, which matches the second triangular rib of the other first liner 2. The second triangular rib can be connected to the other first groove 12 through the second opening. The connecting portion of the second elastic band matches the fourth groove of the other first liner. The first triangular ribs located at the upper and lower edges of the first liner can be directly connected to the first groove. It can be understood that the first triangular rib 22 and the second triangular rib 23 can play a guiding role, facilitating quick positioning with the first groove 11 and the first groove 12, and subsequent fixation with the back bag shell 1; the second triangular rib 23 matches the first opening 51 of the first elastic band 511 and the second opening of the first elastic band 512, and the second triangular rib 23 can play a guiding role, facilitating quick positioning of the first elastic band 511 and the first elastic band 512.

[0051] In one implementation, such as Figure 4 As shown, the second liner 3 is provided with a third triangular rib 32 located at the upper edge, lower edge, and left / right edge of the second liner 3, a fourth triangular rib 33 located away from the left / right edge of the third triangular rib, and a fifth groove 31, wherein the fifth groove 31 is disposed in the area between the third triangular ribs 32. It can be understood that when the third triangular rib 32 is located at the left edge of the second liner 3, the fourth triangular rib 33 is located away from the left edge and close to the right edge of the second liner 3. The fifth groove 31 can be understood as a groove formed by the third triangular rib 32 located at the upper edge, lower edge, and left / right edge of the second liner 3, and the right / left edge of the second liner 3. Accordingly, as... Figure 7As shown, the connecting portion of the first fold 611 is provided with a third opening 61, which matches the fourth triangular rib 33 of a second lining plate 3. The fourth triangular rib 33 can be connected to a second groove 12 through the third opening 61. The connecting portion of the first fold 611 matches the fifth groove 31 of a second lining plate 3. The fourth triangular rib 33 in the second lining plate can be directly connected to the second groove 13. It can be understood that the fourth triangular rib 33 can be fixed by connecting to the second groove 13 through the third opening 61. The fourth triangular rib 33 in the second lining plate can be directly connected to the second groove 13 for fixation without going through the second lining plate 3. The fixing method is not limited to sewing, gluing, or nailing. The connecting portion of the second fold 612 is provided with a fourth opening, which matches the fourth triangular rib of another second lining plate. The fourth triangular rib can be connected to another second groove 14 through the fourth opening. The connecting portion of the second fold matches the fifth groove of another second lining plate. The fourth triangular rib in the second lining plate can be directly connected to the second groove. Understandably, the third triangular rib 32 and the fourth triangular rib 33 serve as guides, facilitating quick positioning with the second groove 13 and the second groove 14, and subsequent fixation to the back pocket shell 1. The fourth triangular rib 33 matches the third opening 61 of the first flap 611 and the fourth opening of the second flap 612, and serves as a guide, facilitating quick positioning of the first flap 611 and the second flap 612.

[0052] In one implementation, such as Figure 5 As shown, the third liner 4 is provided with a fifth triangular rib 42 located on the left, right, and lower edges of the third liner 4, a sixth triangular rib 43 located on the fifth triangular rib away from the lower edge of the third liner 4, and a sixth groove 41, wherein the sixth groove 41 is disposed in the area between the fifth triangular ribs. It can be understood that the sixth groove 41 can be understood as a groove formed by the fifth triangular rib 42 located on the left, right, and lower edges of the third liner 4 and the upper edge of the third liner 4. Correspondingly, as... Figure 8As shown, the connecting portion of the third fold 7 is provided with a fifth opening 71. The fifth opening 71 matches the fifth triangular rib 42 of the third lining plate 4. The fifth triangular rib 43 can be connected to the third groove 15 through the fifth opening 71. That is, the fifth triangular rib 43 needs to pass through the fifth opening 71 and connect to the third groove 15 for fixation. The connecting portion of the third fold 7 matches the sixth groove 41 of the third lining plate 4. The fifth triangular rib 42 in the third lining plate 4 can be directly connected to the third groove 15. That is, the fifth triangular rib 42 in the third lining plate 4 does not need to go through the fifth opening 71 to be directly connected to the third groove 15 for fixation. It should be noted that the above connection can be understood as a connection for fixation, and the fixation method is not limited to sewing, gluing, or rivets. It can be understood that the fifth triangular rib 42 and the sixth triangular rib 43 can play a guiding role, facilitating quick positioning with the third groove 15 and subsequent fixation with the back bag shell 1. The sixth triangular rib 43 matches the fifth opening 71 of the third fold 7. The sixth triangular rib 43 can play a guiding role, which facilitates the rapid positioning of the third fold 7.

[0053] In one implementation, the two second grooves and one third groove on the first side of the backpack shell 1 are interconnected. The two second lining plates and the one third lining plate are injection molded into one lining plate. The first flap, the second flap, and the third flap are sewn together as a whole component. That is, if the second groove 13, the second groove 14, and the third groove 15 (i.e., the two second grooves and the one third groove) of the backpack shell 1 are interconnected into one groove, then the two second lining plates 3 and the one third lining plate 4 are injection molded into one lining plate to match the interconnected groove; the two flaps 6 (i.e., the first flap 611 and the second flap 612) and the one third flap 7 are sewn together as a whole and then fixed to the lining plate (the fixing method is not limited to sewing, gluing, rivets, etc.) to form a component.

[0054] In another implementation, such as Figure 9-15As shown, the first elastic band 511 and one of the first lining plates 2 are fixed to form a first component (component 1); the second elastic band 512 and another of the first lining plates 2 are fixed to form a second component (component 1); the first flap 611 and one of the second lining plates 3 are fixed to form a third component (component 2); the second flap 612 and another of the second lining plates 3 are fixed to form a fourth component (component 2); and the third flap 7 and the third lining plate 4 are fixed to form a fifth component (component 3). The fixing method includes at least one of the following: sewing, bonding, and rivet fixing. That is, the first elastic band 511 and the second elastic band 512 can be fixed to two of the first lining plates 2 respectively to form two sets of components 1; the first flap 611 and the second flap 612 can be fixed to two of the second lining plates 3 respectively to form two sets of components 2; and the third flap 7 and the third lining plate 4 can be fixed to form component 3. The fixing method is not limited to sewing, bonding, rivet fixing, etc. The two sets of components 1, 2 sets of components 2, and 3 are respectively placed into the corresponding grooves 11-15 (i.e., the first groove 11, the first groove 12, the second groove 13, the second groove 14, and the third groove 15) of the back bag shell 1. At this time, the first elastic band 511, the second elastic band 512, the first flap 611, the second flap 612, and the third flap 7 are placed sideways between the first liner 2, the second liner 3, the third liner 4, and the grooves 11-15 of the back bag shell 1, firmly fixing components 1, 2, and 3 to the back bag shell 1 (not limited to vibration friction welding, ultrasonic welding, hot plate welding, bonding, etc.) to complete the assembly of the car seat back bag. Optionally, elastic band 511, second elastic band 512, first flap 611, second flap 612, and third flap 7 can be placed in the grooves 11-15 of the back pocket housing 1. Then, the corresponding first liner 2, second liner 3, and third liner 4 are placed over the elastic band 511, second elastic band 512, first flap 611, second flap 612, and third flap 7, respectively. The bag is then fixed using vibration friction welding, ultrasonic welding, hot plate welding, or bonding, ultimately forming the car seat back pocket. Furthermore, the assembled car seat back pocket is securely connected to the seat back panel via the elastic band 511, second elastic band 512, first flap 611, second flap 612, and third flap 7. In actual use, users can use the adjustment functions of elastic band 511, second elastic band 512, first flap 611, second flap 612, and third flap 7 to control the opening and closing state of the car seat back pocket, greatly improving the convenience and flexibility of use.

[0055] It is evident that, compared with the prior art, this utility model has the following beneficial effects:

[0056] Cost reduction: This invention eliminates the traditional encapsulation process, adopting a single-layer rigid shell structure, thus reducing production steps. Compared to double-layer and single-layer shell encapsulation structures, it greatly simplifies mold development and reduces the requirements for production equipment, thereby effectively reducing production costs and improving the product's competitiveness in the market.

[0057] Lightweight design: Abandoning the double-shell structure and using a single-layer rigid shell, the weight of the car seat back pocket is significantly reduced, aligning with the automotive industry's trend towards lightweight design. Lightweight car seat back pockets help reduce overall vehicle weight, decrease energy consumption, and improve overall vehicle performance.

[0058] Robust Structure: The interplay between the bag shell, lining, elastic bands, and hinges ensures a tight connection and precise positioning of each component. This design not only guarantees the rigid support of the car seat back pocket, giving it better load-bearing capacity, but also enhances the overall structural stability and improves the durability of the car seat back pocket.

[0059] Easy to use: With the elastic band and hinge adjustment function, users can easily control the opening and closing of the car seat back pocket. The operation is simple and flexible, which greatly improves the convenience of use and meets the diverse needs of users in actual use.

[0060] Flexible design: The fit between the bag shell, lining, elastic band, and flaps can be adjusted according to actual needs, adapting to different car seat designs and usage scenarios, thus improving the product's versatility and applicability.

[0061] It is understandable that the present invention features a car seat back map pocket and assembled back panel assembly with a single-layer rigid shell structure. This design not only eliminates the double-layer shell structure but also eliminates the traditional wrapping process, thereby achieving an organic combination of rigid support, low production cost and lightweight.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present utility model, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the present utility model.

Claims

1. A car seat back pocket, characterized in that, The car seat back pocket includes a back pocket shell, a liner, elastic bands, and hinges; The liner is fixed to the first side of the back bag housing; The flap is fixed to the left, right, and bottom edges of the first side of the back bag housing by the liner; The elastic band is fixed to the top edge of the first side of the back bag housing by the liner; The elastic band works in conjunction with the hinge to adjust the opening and closing state of the back pocket housing.

2. The car seat back pocket as described in claim 1, characterized in that, The lining includes two first linings, two second linings, and one third lining; the hinge includes a first hinge, a second hinge, and a third hinge, wherein the first hinge is disposed on the left edge of the first side of the backpack housing, the second hinge is disposed on the right edge of the first side of the backpack housing, and the third hinge is disposed on the bottom edge of the first side of the backpack housing; the first side of the backpack housing is provided with two first grooves, two second grooves, and one third groove; the elastic band includes a first elastic band and a second elastic band.

3. The car seat back pocket as described in claim 2, characterized in that, The first groove is sized to form an interference fit with the first liner, and the first groove is used to embed the first liner; the second groove is sized to form an interference fit with the second liner, and the second groove is used to embed the second liner; the third groove is sized to form an interference fit with the third liner, and the third groove is used to embed the third liner.

4. The car seat back pocket as described in claim 2 or 3, characterized in that, The first liner is provided with a first triangular rib located at the upper and lower edges of the first liner, a second triangular rib located at the center of the first liner, and a fourth groove, wherein the fourth groove is provided in the area between the first triangular ribs, and the second triangular rib is also located in the middle of the fourth groove.

5. The car seat back pocket as described in claim 4, characterized in that, The first elastic band has a first opening at its connecting portion, which matches the second triangular rib of a first liner. The second triangular rib can be connected to a first groove through the first opening. The connecting portion of the first elastic band matches the fourth groove of the first liner. The first triangular ribs located at the upper and lower edges of the first liner can be directly connected to the first groove. The second elastic band has a second opening at its connecting portion, which matches the second triangular rib of another first liner. The second triangular rib can be connected to another first groove through the second opening. The connecting portion of the second elastic band matches the fourth groove of another first liner. The first triangular ribs located at the upper and lower edges of the first liner can be directly connected to the first groove.

6. The car seat back pocket as described in claim 2 or 3, characterized in that, The second liner is provided with a third triangular rib located at the upper edge, lower edge and left / right edge of the second liner, a fourth triangular rib located away from the left / right edge of the third triangular rib in the second liner and a fifth groove, wherein the fifth groove is provided in the area between the third triangular ribs.

7. The car seat back pocket as described in claim 6, characterized in that, The first fold has a third opening on its connecting portion, which matches the fourth triangular rib of a second liner. The fourth triangular rib can be connected to a second groove through the third opening. The connecting portion of the first fold matches the fifth groove of a second liner, and the fourth triangular rib in the second liner can be directly connected to the second groove. The second fold has a fourth opening on its connecting portion, which matches the fourth triangular rib of another second liner. The fourth triangular rib can be connected to another second groove through the fourth opening. The connecting portion of the second fold matches the fifth groove of another second liner, and the fourth triangular rib in the second liner can be directly connected to the second groove.

8. The car seat back pocket as described in claim 2 or 3, characterized in that, The third liner plate is provided with a fifth triangular rib located on the left edge, right edge and lower edge of the third liner plate, a sixth triangular rib located on the fifth triangular rib away from the lower edge of the third liner plate and a sixth groove, wherein the sixth groove is provided in the area between the fifth triangular ribs.

9. The car seat back pocket as described in claim 8, characterized in that, The connecting portion of the third fold is provided with a fifth opening, which matches the fifth triangular rib of the third liner. The fifth triangular rib can be connected to the third groove through the fifth opening. The connecting portion of the third fold matches the sixth groove of the third liner. The fifth triangular rib in the third liner can be directly connected to the third groove.

10. The car seat back pocket as described in claim 2, characterized in that, The two first grooves, two second grooves, and one third groove on the first side of the backpack shell are interconnected. The two first lining plates, the two second lining plates, and the one third lining plate are injection molded into one lining plate. The first flap, the second flap, the third flap, the first elastic band, and the second elastic band are sewn together as a single integral component; or, The first elastic band and one of the first lining plates are fixed as a first component, the second elastic band and another of the first lining plates are fixed as a second component, the first hinge and one of the second lining plates are fixed as a third component, the second hinge and another of the second lining plates are fixed as a fourth component, and the third hinge and the third lining plate are fixed as a fifth component; wherein the fixing method includes at least one of the following: sewing, gluing, and rivet fixing.

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