Guardrail and back cushion angle adjusting mechanism of automobile rear row deformation seat

Abstract

The utility model provides a guardrail and back cushion angle adjusting mechanism of an automobile back row deformation seat, which is characterized by comprising an adult seat and a deformable child safety seat, the adult seat comprises an adult seat base and an adult seat backrest, and the child safety seat comprises an adult seat base and an adult seat backrest. The child safety seat comprises a child seat base, base guardrails, a child seat backrest, backrest guardrails and a back cushion, steering engine steering mechanisms are arranged between the child seat base and the base guardrails, between the child seat backrest and the backrest and between the two sides of the back cushion and the body respectively, and the angles of the two guardrails and the angles of the two sides of the back cushion can be adjusted respectively. The utility model relates to a guardrail and back cushion angle adjusting mechanism which is adopted by a child safety seat integrated on a conventional automobile back row seat, and the child safety seat can be used by children with different figures by adjusting the angles of the guardrail and the back cushion.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile child seats, in particular to a guardrail and a backrest angle adjustment mechanism for a rear-row deformable seat of an automobile. Background Art

[0002] With the development of society and the improvement of people's living standards, cars are becoming an increasingly important means of transportation for people to travel. When traveling, when there are children in the car, in order to improve driving safety, car child seats are often installed on the back seats of the car to improve driving safety.

[0003] In the prior art, child safety seats are usually additional equipment. Because of the space they occupy, they often need to be loaded and unloaded as needed, which inconveniences affect the use of users. In addition, as children grow older, child seats also need to be replaced. In order to make the use of child seats more convenient and encourage parents to be more willing to use child seats, there is an urgent need for a child seat integrated on the driver's rear seat, which can not only make the child safety seat convenient to use, but also make the child safety seat suitable for children of different ages. Utility Model Content

[0004] The utility model aims to provide a deformable rear seat for a car to solve the problem that the child safety seat needs to be replaced as the child ages.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A guardrail and backrest angle adjustment mechanism for a rear-row deformable seat of a car, comprising an adult seat 002 and a deformable child safety seat 001, wherein the adult seat 002 comprises an adult seat base 021 and an adult seat backrest 022, and the child safety seat 001 comprises a child seat base 011, a base guardrail 012, a child seat backrest 013, a backrest guardrail 014 and a backrest 015; when the child safety seat 001 is not in use, the base guardrail 012, the backrest guardrail 014 and the backrest 015 are folded inwards, so that the base guardrail 012 and the child seat base 011 are in the same position. On a horizontal plane, the backrest guardrail 014 and the child seat backrest 013 are on the same horizontal plane, and both sides of the pillow 015 are also close to the same plane as the main body, and then the child seat backrest 013 is buckled into the same plane as the child seat base 011; when the child safety seat 001 needs to be used, the base guardrail 012, the backrest guardrail 014 and the pillow 015 are folded outward to a specified angle to provide protection for the child's legs, torso and both sides of the head, and a control unit 006 can be installed under the adult seat base 021 to facilitate the angle adjustment of the child seat.

[0007] A servo steering mechanism is respectively provided inside the connection between the base guardrail 012 and the child seat base 011 on both sides of the child safety seat 001, specifically comprising a first servo 41, a gear set 42 and a base guardrail hinge 43, wherein one side of the base guardrail hinge 43 is fixedly connected to the base guardrail 012, and the other end is fixedly connected to the child seat base 011, and the first servo 41 is connected to the control unit 006 and controlled by it; when the child seat needs to be used, that is, when the child seat is unfolded, the first servo 41 drives the base guardrail hinge 43 to rotate through the gear set 42 The first servo 41 drives the base guardrail hinge 43 to rotate via the gear set 42, so that the angle of the base guardrail hinge 43 becomes smaller, and the angle between the base guardrail 012 and the child seat base 011 also becomes smaller; the angle between the base guardrail 012 and the child seat base 011 can be adjusted by controlling the first servo 41 via the control unit 006.

[0008] A servo steering mechanism is respectively provided inside the connection between the backrest guardrail 014 and the child seat backrest 013 on both sides of the child safety seat 001, specifically including a second servo 412, the gear set 42 and a backrest guardrail hinge 432, wherein the second servo 412 is connected to and controlled by the control unit 006, wherein one side of the backrest guardrail hinge 432 is fixedly connected to the backrest guardrail 014, and the other side is fixedly connected to the child seat backrest 013; when a child seat is needed, that is, when the child seat is unfolded, the second servo 412 drives the backrest guardrail hinge 432 through the gear set 42 The second servo 412 drives the backrest guardrail hinge 432 to rotate via the gear set 42, so that the angle of the backrest guardrail hinge 432 becomes smaller, and the angle between the backrest guardrail 014 and the child seat back 013 also becomes smaller; the angle between the backrest guardrail 014 and the child seat back 013 can be adjusted by controlling the second servo 412 via the control unit 006.

[0009] The third servo 413 and the gear set 42 are respectively provided inside the two sides of the child seat backrest 013 near the pillow 015, and are connected to the pillow 015 through an axis. A pillow hinge 433 is provided in the pillow 015, wherein one side of the pillow hinge 433 is respectively fixedly connected to the two side parts of the pillow 015, and the other side is respectively fixedly connected to the main part of the pillow 015. The third servo 413 is connected to the control unit 006 and is controlled by it. When the child seat is needed, the third servo 413 is controlled by the control unit 006. The gear set 42 drives the pillow hinge 433 to rotate, so that the angle of the pillow hinge 433 becomes larger, and the angle between the two sides of the pillow 015 and the main body also becomes larger; when the child seat is not needed and the child seat needs to be folded, the third servo 413 drives the pillow hinge 433 to rotate through the gear set 42, so that the angle of the pillow hinge 433 becomes smaller, and the angle between the two sides of the pillow 015 and the main body also becomes smaller; the angle between the two sides of the pillow 015 and the main body can be adjusted by controlling the third servo 413 by the control unit 006.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model can control the rotation angle of the servo through a control unit, thereby controlling the angle between the child seat base and the base guardrail, the angle between the child seat back and the back guardrail, and the angle between the two sides of the headrest and the main body, so that the seat can adapt to children of different sizes by adjusting the basic angle opening and closing size as the child ages, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure in the embodiment;

[0013] Figure 2 It is a schematic diagram of the internal structure of the base guardrail, back guardrail and pillow of the child seat of the utility model;

[0014] Figure 3 This is a schematic diagram of the principle of the angle change between the driving base guardrail and the base of the utility model;

[0015] Figure 4 This is a schematic diagram of the principle of driving the angle change between the backrest guardrail and the backrest of the utility model;

[0016] Figure 5 This is a schematic diagram of the principle of driving the angle change between the two sides of the pillow and the main body of the utility model;

[0017] Figure 6 This is a schematic diagram of a lockable rotating shaft structure in an embodiment;

[0018] Figure 7 A partial cross-sectional view of a lockable rotating shaft in an embodiment;

[0019] Figure 8 This is one of the schematic diagrams of the lifting platform structure in the embodiment;

[0020] Fig. 9 This is the second schematic diagram of the lifting platform structure in the embodiment;

[0021] Fig.10 This is the third schematic diagram of the lifting platform structure in the embodiment;

[0022] Fig.11 A schematic diagram of a child seat in an embodiment being folded and lowered into an adult seat base;

[0023] Fig.12 It is a schematic diagram of the structure of the child seat after being folded and the separation layer is buckled in the embodiment;

[0024] Fig.13 It is a schematic diagram of a child seat after the base guardrail, back guardrail and headrest of the child seat are folded when the child seat servo drives the child seat in an embodiment. DETAILED DESCRIPTION

[0025] In order to clarify the technical problems, technical solutions, implementation processes and performance demonstrations, the utility model is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are for explanation only. The utility model is not intended to limit the utility model. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same figure numbers in the drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0026] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0027] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0028] Example 1

[0029] like Figure 1As shown, a deformable rear seat of a car includes an adult seat 002 and a deformable child safety seat 001, wherein the adult seat 002 includes an adult seat base 021 and an adult seat backrest 022, and the child safety seat 001 includes a child seat base 011, a base guardrail 012, a child seat backrest 013, a back guardrail 014 and a pillow 015, and the bottom of the child safety seat 001 is fixedly connected to a lifting platform 003, and the lifting platform 003 is installed at the bottom of the adult seat base 021; when the child safety seat 001 is not in use, the base guardrail 012, the back guardrail 014 and the pillow 015 are folded inwardly, so that the base guardrail 012 and the child seat base 011 are on the same horizontal plane, the back guardrail 014 and the child seat backrest 013 are on the same horizontal plane, and the two sides of the pillow 015 are folded inwardly. The side is also close to the same plane with the main body, and then the child seat backrest 013 is buckled into the same plane as the child seat base 011, and finally the lifting platform 003 is driven to descend so that the entire child safety seat 001 is located below the adult seat base 021, which does not affect the normal use of the adult seat 002; when the child safety seat 001 needs to be used, the lifting platform 003 is driven to rise so that the entire child safety seat 001 rises to the same horizontal plane as the adult seat base 021. At this time, the base guardrail 012, the backrest guardrail 014 and the pillow 015 are folded outward to a specified angle, thereby providing protection for the child's legs, torso and both sides of the head. A control unit 006 can be installed below the adult seat base 021 to facilitate the angle adjustment of the child seat, thereby realizing the integration of the adult seat and the child seat.

[0030] The guardrail and backrest angle adjustment mechanism of the rear deformable seat of the automobile proposed in the utility model is used to adjust the angles between the child seat base and the base guardrail, between the child seat backrest and the backrest, and between the two sides of the backrest and the main body on the child safety seat 001, as follows:

[0031] like Figure 2 and Figure 3As shown, the base guardrail 012 on both sides of the child safety seat 001 and the connection between the child seat base 011 are respectively provided with a steering gear steering mechanism, specifically including a first steering gear 41, a gear set 42 and a base guardrail hinge 43, wherein one end of the base guardrail hinge 43 is fixedly connected to the base guardrail 012, and the other end is fixedly connected to the child seat base 011, and the first steering gear 41 is connected to the control unit 006 and controlled by it; when the child seat needs to be used, that is, when the child seat is unfolded, the first steering gear 41 drives the base guardrail hinge 43 through the gear set 42 The first servo 41 drives the base guardrail hinge 43 to rotate via the gear set 42, so that the angle of the base guardrail hinge 43 becomes smaller, and the angle between the base guardrail 012 and the child seat base 011 also becomes smaller; the angle between the base guardrail 012 and the child seat base 011 can be adjusted by controlling the first servo 41 via the control unit 006.

[0032] like Figure 2 and Figure 4 As shown, the inner parts of the connection between the backrest guardrail 014 and the child seat backrest 013 on both sides of the child safety seat 001 are respectively provided with a steering gear steering mechanism, specifically including a second steering gear 412, the gear set 42 and a backrest guardrail hinge 432, the second steering gear 412 is connected to the control unit 006 and is controlled by it, wherein one side of the backrest guardrail hinge 432 is fixedly connected to the backrest guardrail 014, and the other side is fixedly connected to the child seat backrest 013; when the child seat needs to be used, that is, when the child seat is unfolded, the second steering gear 412 drives the backrest guardrail hinge 432 through the gear set 42 The second servo 412 drives the backrest guardrail hinge 432 to rotate via the gear set 42, so that the angle of the backrest guardrail hinge 432 becomes smaller, and the angle between the backrest guardrail 014 and the child seat back 013 also becomes smaller; the angle between the backrest guardrail 014 and the child seat back 013 can be adjusted by controlling the second servo 412 via the control unit 006.

[0033] like Figure 2 and Figure 5As shown, the third servo 413 and the gear set 42 are respectively provided inside the two sides of the child seat backrest 013 near the pillow 015, and are connected to the pillow 015 through an axis, and a pillow hinge 433 is provided in the pillow 015, wherein one side of the pillow hinge 433 is respectively fixedly connected to the two side parts of the pillow 015, and the other side is respectively fixedly connected to the main part of the pillow 015, and the third servo 413 is connected to the control unit 006 and controlled by it; when the child seat is needed to be used, that is, when the child seat is unfolded, the third servo 413 is The gear set 42 drives the pillow hinge 433 to rotate, so that the angle of the pillow hinge 433 becomes larger, and the angle between the two sides of the pillow 015 and the main body also becomes larger; when the child seat is not needed and needs to be folded, the third servo 413 drives the pillow hinge 433 to rotate through the gear set 42, so that the angle of the pillow hinge 433 becomes smaller, and the angle between the two sides of the pillow 015 and the main body also becomes smaller; the angle between the two sides of the pillow 015 and the main body can be adjusted by controlling the third servo 413 by the control unit 006.

[0034] The control unit 006 controls the rotation angle of each servo, thereby controlling the angle between the child seat base and the base guardrail, the angle between the child seat backrest and the backrest guardrail, and the angle between the two sides of the headrest and the main body, so that the seat can adapt to children of different sizes by adjusting the basic angle opening and closing size as the child grows older.

[0035] As a possible implementation manner, the rotation angles of the first servo 41, the second servo 412 and the third servo 413 can be independent of each other, or they can be fitted according to a least squares method based on a large amount of experimental data to obtain the relationship between the rotation angles of the three servos suitable for three parts of the body of children of different ages, and unified control can be performed to simplify the operation process.

[0036] like Figure 6 and Figure 7As shown, a lockable rotating shaft 005 is provided at the connection between the child seat backrest 013 and the child seat base 011, and the lockable rotating shaft 005 includes: a locking button 051, a central rotating shaft 052, a first rotating shaft sleeve 053 and a second rotating shaft sleeve 054, the locking button 051 is fixed to one end of the central rotating shaft 052, and the locking button 051 is also fixed to the side of the child safety seat 001; two second rotating shaft sleeves 054 are provided, which are respectively located on both sides of the central rotating shaft 052, the first rotating shaft sleeve 053 is located in the middle of the central rotating shaft 052, and the first rotating shaft sleeve 053 is located in the middle of the central rotating shaft 052. 3 and the second rotating shaft sleeve 054 can rotate around the central rotating shaft 052, and the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054 are fixedly installed with a connecting plate 056 to assist in fixing the child seat backrest 013 and the child seat base 011, wherein the connecting plates 056 on the two first rotating shaft sleeves 053 are fixed on the child seat base 011, and the connecting plates 056 on the second rotating shaft sleeve 054 are fixed on the backrest of the child seat backrest 013; wherein the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054 near one end of the locking button 051 are connected at a position close to the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054. A tooth-shaped groove is respectively provided on the inner surface of each of the first rotating shaft sleeve 053, and a tooth-shaped protrusion is provided on the corresponding position of the central rotating shaft 052, wherein the tooth-shaped groove on the inner surface of the first rotating shaft sleeve 053 is long enough to allow all the tooth-shaped protrusions on the central rotating shaft 052 to be inserted therein; the central rotating shaft 052 on the side away from the locking button 051 is cooperatively connected with it inside the child safety seat 001, and a spring 055 is provided at the connection, and the spring 055 pushes the central rotating shaft 052 in the direction of the locking button 051. When the locking button 051 is pressed, the entire central rotating shaft 052 moves in the direction of the spring 055. At this time, the The toothed protrusion on the central rotating shaft 052 slides into the toothed groove of the first rotating shaft sleeve 053, and the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054 can rotate relative to each other. After adjusting to the desired angle, the locking button 051 is released, and the entire central rotating shaft 052 moves toward the locking button 051 under the action of the spring 055. At this time, the toothed protrusion on the central rotating shaft 052 is stuck in the toothed groove of the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054. At this time, the first rotating shaft sleeve 053 and the second rotating shaft sleeve 054 are stuck and cannot rotate relative to each other, thereby achieving locking.

[0037] like Figure 8-Figure 10As shown, the lifting platform 003 includes a bottom frame 031, a top frame 032, a seat fixing plate 033, a first oblique bracket 034, a second oblique bracket 035, a lifting hydraulic rod 036 and a translation hydraulic rod 037. The bottom frame 031 and the top frame 032 are aligned with each other in the vertical direction. A bottom frame slide groove 311 and a bottom slide groove connecting rod 312 are provided inside one half of the bottom frame 031, and a top frame slide groove 321 and a top slide groove connecting rod 322 are provided inside the same half of the corresponding top frame 032; the first oblique bracket 034 and the second oblique bracket 035 are respectively provided with two, and the first oblique bracket 034 and the second oblique bracket 035 are respectively provided with two. One end of the second inclined bracket 035 is hingedly connected to one end of the top frame 032 away from the top frame slide 321, and the other end is hingedly connected to the bottom slide connecting rod 312. At the same time, the first inclined bracket 034 and the second inclined bracket 035 are hingedly connected in the middle. A fixed rod 038 is provided on the upper side of the two first inclined brackets 034. The lifting hydraulic rod 036 is fixed between the fixed rod 038 and the bottom slide connecting rod 312. The hydraulic rod 036 is connected to the control unit 006 and is controlled by it. The height difference between the bottom frame 031 and the top frame 032 can be adjusted by controlling the extension and retraction of the lifting hydraulic rod 036. The seat fixing plate 033 is located on the top frame 032 and is connected by a sliding fit. The translation hydraulic rod 037 is fixedly installed on the top frame 032 at one end away from the top frame slide groove 321 and is fixedly connected to the seat fixing plate 033. The position of the seat fixing plate 033 can be adjusted by controlling the extension and retraction of the translation hydraulic rod 037. When the child safety seat 001 needs to be used, the translation hydraulic rod 037 The seat fixing plate 033 is driven to be pushed toward the front of the seat, and at the same time, the lifting hydraulic rod 036 is driven to extend, so that the top frame 032 is raised, thereby driving the child safety seat 001 to be raised to a specified position, and then the child safety seat 001 is fully unfolded for use; when the child safety seat 001 is not in use, the lifting hydraulic rod 036 is driven to be shortened, so that the top frame 032 is lowered, thereby driving the child safety seat 001 to be lowered into the adult seat base 021, and the translation hydraulic rod 037 drives the seat fixing plate 033 to be pushed toward the rear of the seat, thereby making full use of the space of the adult seat base 021.

[0038] like Fig.11 and Fig.12As shown, a separation layer 211 is provided on the adult seat base 021 of the adult seat 002, which can cooperate with the seat base 021 to form the upper surface of the adult seat base 021. At the same time, the separation layer 211 is hinged to the adult seat base 021 near the adult seat back 022, so that the separation layer 211 can be opened. When the child safety seat 001 needs to be used, the separation layer 211 is opened and placed against the adult seat back 022 of the adult seat 002 to leave space for the child safety seat 001. When the child safety seat 001 is not needed, the separation layer 211 is snapped onto the adult seat base 021 to restore it to the adult seat 002. The bottom material of the separation layer 211 is hard, and the top is a cushion, which can meet the strength requirements of the seat and the comfort level of adults.

[0039] A small boss may be provided at the intersection of the separation layer 211 and the seat base 021 to assist in stabilizing the separation layer 211 after being buckled.

[0040] The control unit 006 can use a single-chip microcomputer to control the rotation angle and direction of the first servo 41, the second servo 412 and the third servo 413, and can also control the extension or shortening of the lifting hydraulic rod 036 and the translation hydraulic rod 037. The angles of the first servo 41, the second servo 412 and the third servo 413 are divided into a folding angle and an unfolding angle, wherein the folding angle is a fixed value and the unfolding angle can be adjusted. The lifting hydraulic rod 036 and the translation hydraulic rod 037 are divided into an unfolded length and a stowed length, and both are fixed values.

[0041] The seat is usually kept Fig.12 The state shown can be used normally by adults at this time;

[0042] When the child seat is needed, the separation layer 211 is first opened, and the control unit 006 presses the unfolding button, and the seat will be unfolded from the Fig.11 In the state shown, the entire child seat is lifted and pushed outward for a short distance by the lifting platform 003, and at the same time, the first servo 41, the second servo 412 and the third servo 413 drive the base guardrail 012, the backrest guardrail 014 and the two sides of the pillow 15 to unfold. At this time, the locking button 051 of the lockable shaft 005 is pressed to adjust the angle between the child seat base 011 and the child seat backrest 013 of the child safety seat 001. When an angle suitable for children is found, the locking button 051 can be released, and finally the state shown in FIG. Figure 1 The position shown in the figure can now transform the original adult seat into a child seat for children to use.

[0043] When the child seat is used and needs to be stored, the control unit 006 presses the storage button, and the first steering engine 41, the second steering engine 412 and the third steering engine 413 drive the base guardrail 012, the back guardrail 014 and the two sides of the pillow 15 to buckle as shown in the figure. Fig.13 In the state shown, the locking button 051 of the lockable shaft 005 is pressed at the same time to buckle the child seat base 011 and the child seat backrest 013 of the child safety seat 001 into a state as shown. Fig.11 Finally, the lifting platform 003 lowers the entire child seat to below the adult seat base 021 and pushes it a short distance toward the backrest to prevent the child safety seat from leaking out, and finally the separation layer 211 is buckled into a Fig.12 As indicated, continue to be used by adults.

[0044] As a possible implementation, a plurality of buttons may be provided on the control unit 006 to respectively control the deployment angles of the first servo 41, the second servo 412 and the third servo 413, so that the base guardrail 012, the back guardrail 014 and the pillow 15 are deployed at different angles so as to be suitable for children of different body shapes.

[0045] As a possible implementation, the transmission ratio of the gear set connected to the first servo 41, the second servo 412 and the third servo 413 can be adjusted according to the servo torque and the locking force at the guardrail required in actual use, mainly to prevent the base guardrail 012, the backrest guardrail 014 and the two sides of the pillow 15 from rotating easily.

[0046] As a possible implementation, the child seat backrest 013 of the child safety seat 001 may be provided with a plurality of safety belt holes, and the fixed positions may be freely selected according to the size of the child using the child.

[0047] This embodiment integrates the child work seat into the rear seat of the car. The adult seat in the rear of the car can be transformed into a safety seat for children through simple operation, which saves space and does not require cumbersome disassembly, so that users can use it conveniently.

[0048] The utility model can control the rotation angle of the servo through a control unit, thereby controlling the angle between the child seat base and the base guardrail, the angle between the child seat back and the back guardrail, and the angle between the two sides of the headrest and the main body, so that the seat can adapt to children of different sizes by adjusting the basic angle opening and closing size as the child ages, thereby increasing practicality.

[0049] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A guardrail and backrest angle adjustment mechanism for a rear-row deformable seat of a car, characterized in that: The invention comprises an adult seat (002) and a deformable child safety seat (001), wherein the adult seat (002) comprises an adult seat base (021) and an adult seat backrest (022), and the child safety seat (001) comprises a child seat base (011), a base guardrail (012), a child seat backrest (013), a backrest guardrail (014) and a pillow (015); when the child safety seat (001) is not in use, the base guardrail (012), the backrest guardrail (014) and the pillow (015) are folded inwards so that the base guardrail (012) and the child seat base (011) are on the same horizontal plane. The backrest guardrail (014) and the child seat backrest (013) are on the same horizontal plane, and the two sides of the pillow (015) are also close to the same plane as the main body, and then the child seat backrest (013) is buckled to be on the same plane as the child seat base (011); when the child safety seat (001) needs to be used, the base guardrail (012), the backrest guardrail (014) and the pillow (015) are folded outward to a specified angle to provide protection for the child's legs, torso and both sides of the head, and a control unit (006) can be installed below the adult seat base (021) to facilitate the angle adjustment of the child seat.

2. The guardrail and backrest angle adjustment mechanism of a rear deformable seat of a vehicle according to claim 1, characterized in that: A steering gear steering mechanism is provided inside the connection between the base guardrail (012) and the child seat base (011) on both sides of the child safety seat (001), specifically comprising a first steering gear (41), a gear set (42) and a base guardrail hinge (43), wherein one end of the base guardrail hinge (43) is fixedly connected to the base guardrail (012), and the other end is fixedly connected to the child seat base (011), and the first steering gear (41) is connected to a control unit (006) and controlled by it; when the child seat needs to be used, that is, when the child seat is unfolded, the first steering gear (41) drives the base guardrail hinge (43) through the gear set (42). The first steering gear (41) drives the base guardrail hinge (43) to rotate so that the angle of the base guardrail hinge (43) becomes larger, and the angle between the base guardrail (012) and the child seat base (011) also becomes larger; when the child seat is no longer needed and needs to be folded up, the first steering gear (41) drives the base guardrail hinge (43) to rotate through the gear set (42) so that the angle of the base guardrail hinge (43) becomes smaller, and the angle between the base guardrail (012) and the child seat base (011) also becomes smaller; the angle between the base guardrail (012) and the child seat base (011) can be adjusted by controlling the first steering gear (41) through the control unit (006).

3. The guardrail and backrest angle adjustment mechanism of a rear deformable seat of a vehicle according to claim 2, characterized in that: A servo steering mechanism is provided inside the connection between the backrest guardrail (014) and the child seat backrest (013) on both sides of the child safety seat (001), specifically comprising a second servo (412), the gear set (42) and a backrest guardrail hinge (432), wherein the second servo (412) is connected to a control unit (006) and is controlled thereby, wherein one side of the backrest guardrail hinge (432) is fixedly connected to the backrest guardrail (014), and the other side is fixedly connected to the child seat backrest (013); when the child seat is to be used, that is, when the child seat is unfolded, the second servo (412) drives the backrest guardrail hinge (432) via the gear set (42) to rotate. ) rotates, so that the angle of the backrest guardrail hinge (432) becomes larger, and at this time the angle between the backrest guardrail (014) and the child seat backrest (013) also becomes larger; when the child seat is not needed and needs to be folded, the second servo (412) drives the backrest guardrail hinge (432) to rotate through the gear set (42), so that the angle of the backrest guardrail hinge (432) becomes smaller, and at this time the angle between the backrest guardrail (014) and the child seat backrest (013) also becomes smaller; the angle between the backrest guardrail (014) and the child seat backrest (013) can be adjusted by the control unit (006) controlling the second servo (412).

4. The guardrail and backrest angle adjustment mechanism for a rear deformable seat of a vehicle according to claim 2, characterized in that: The third servo (413) and the gear set (42) are respectively provided inside the two sides of the child seat backrest (013) near the headrest (015), and are connected to the headrest (015) through an axis. A headrest hinge (433) is provided inside the headrest (015), wherein one side of the headrest hinge (433) is respectively fixedly connected to the two side parts of the headrest (015), and the other side is respectively fixedly connected to the main part of the headrest (015). The third servo (413) is connected to the control unit (006) and is controlled by it. When the child seat is needed, that is, when the child seat is unfolded, the third servo (413) is opened by The gear set (42) drives the pillow hinge (433) to rotate, so that the angle of the pillow hinge (433) becomes larger, and at this time the angle between the two sides of the pillow (015) and the main body also becomes larger; when the child seat is not needed and needs to be folded, the third steering engine (413) drives the pillow hinge (433) to rotate through the gear set (42), so that the angle of the pillow hinge (433) becomes smaller, and at this time the angle between the two sides of the pillow (015) and the main body also becomes smaller; the angle between the two sides of the pillow (015) and the main body can be adjusted by controlling the third steering engine (413) through the control unit (006).

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