CN109334524B

CN109334524B - Multifunctional child safety seat

Info

Publication number: CN109334524B
Application number: CN201811456822.5A
Authority: CN
Inventors: 张晓龙; 许东辉; 张可可; 李冬丽
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-12-15
Anticipated expiration: 2038-11-30
Also published as: CN109334524A

Abstract

The invention discloses a multifunctional child safety seat which comprises a backrest (1), a seat (7) and armrests (4), wherein the backrest (1) is connected with the seat (7) through a backrest angle adjusting mechanism (12), and the armrests (4) are arranged on the side surfaces of the seat (7) through an armrest height adjusting mechanism (3). The invention can adjust the height of the armrest and the angle of the seat, and effectively improves the comfort and the practicability of the seat.

Description

Multifunctional child safety seat

Technical Field

The invention relates to a seat, in particular to a multifunctional child safety seat.

Background

Along with the continuous improvement of living standard of people, private car becomes the main instrument of riding instead of walk of people's free trip, and private car quantity is more and more, because children's skeleton is fragile, and the reaction is slow, and holding power is little, can receive more serious injury than the adult in the face of accident as if suddenly, therefore more and more families can buy children's seat alone for children, but to children, it is the necessity of guaranteeing safe trip, but current children's seat comfort level is low and the function is single. The ubiquitous problem of current children's seat is as follows:

for safety, a common child is placed on a rear seat of a vehicle, the rear seat is rarely provided with an adjustable backrest angle, and the child keeps the same sitting posture for a long time to generate boring emotion and discomfort;

the height of the seat armrest is different between children and adults, the comfort of the seat armrest height of the children with different heights is different, the height of the children is changed greatly when the children grow faster, the comfort of the seat armrest height is also changed, and the existing seat armrest for the children cannot be adjusted, so that the comfort is influenced;

children need regularly supply nutrition because physiological factors, and the use of seat dining table is very necessary, and children's toy or diet tableware can be placed on the one hand to the seat dining table, and on the other hand children can lie prone on the dining table and support in diet or playing with the toy.

Disclosure of Invention

The invention aims to provide a multifunctional child safety seat, which can be used for solving the defects in the prior art, can be used for adjusting the height of an armrest and the angle of a seat, and effectively improves the comfort and the practicability of the seat.

The invention provides a multifunctional child safety seat which comprises a backrest, a seat and armrests, wherein the backrest is connected with the seat through a backrest angle adjusting mechanism, and the armrests are installed on the side surfaces of the seat through an armrest height adjusting mechanism.

In the multifunctional child safety seat, preferably, the armrest height adjusting mechanism includes a mounting seat, a height adjusting plate and a button assembly, the height adjusting plate is disposed on a bottom surface of the armrest tail end, a height adjusting groove is formed from a bottom of the height adjusting plate to a top of the height adjusting plate, a plurality of groups of fixing blocks are disposed in the height adjusting groove, and a gap is formed between any two adjacent groups of fixing blocks; the installation seat is provided with a handrail installation channel arranged in the vertical direction, the side surface of the installation seat is provided with an installation opening communicated with the handrail installation channel, the height adjusting plate is connected with the handrail installation channel in an inserting mode, the button assembly is installed on the installation opening and provided with a guide rod and a wing plate, the wing plate is arranged at the free end of the guide rod and can move between a first position and a second position, when the wing plate is located at the first position, the wing plate is clamped with the notch, and when the wing plate is located at the second position, the wing plate is separated from the notch.

In the multifunctional child safety seat, preferably, the button assembly includes a pressing block, a spring and a connecting body, the connecting body has at least two transverse notches, at least two first claws are arranged on an installation surface of the connecting body along a circumferential direction, the pressing block has a second claw, the second claw passes through an installation hole of the connecting body and then is clamped with the transverse notches, the connecting body is installed on the installation opening, and the installation opening has a clamping groove matched with the first claw; the guide rod is fixed on the pressing block, the spring is sleeved on the guide rod, one end of the spring is abutted against the pressing block, and the other end of the spring is abutted against the inner wall surface of the mounting opening.

In the multifunctional child safety seat, preferably, the free end of the guide rod is further provided with a locking part.

Among the aforementioned multi-functional children's safety seat, preferably, back angle guiding mechanism includes fixed plate, fly leaf and backup pad, the fixed plate with seat fixed connection, the top fixed mounting of fixed plate has first gear, the backup pad with back fixed connection, the lower extreme of backup pad is equipped with the pivot, the pivot run through in first gear, and with the lower extreme rotatable coupling of fly leaf, be equipped with opening direction orientation in the backup pad the spacing frame of U-shaped of first gear, install the second gear in the spacing frame of U-shaped, the upper end of fly leaf is equipped with spanner component, on its face with be equipped with the guide way that the slant was arranged on the relative position of the spacing frame of U-shaped, the pivot of second gear is installed in the guide way.

In the foregoing multifunctional child safety seat, preferably, the wrench assembly includes a wrench, an extension spring and a fixing plate, a second guide groove is provided in the support plate, a mounting hole is provided in the upper end of the movable plate, a slide bar of the wrench passes through the mounting hole and then is in sliding fit with the second guide groove, a mounting column is provided on the movable plate, the fixing plate is provided in the support plate, one end of the extension spring is fixedly connected with the mounting column, and the other end of the extension spring is fixedly connected with the fixing plate.

In the multifunctional child safety seat, preferably, the backrest angle adjusting mechanism further includes a coil spring, the coil spring is sleeved on the rotating shaft, one end of the coil spring is fixedly connected with the rotating shaft, and the other end of the coil spring is fixedly connected with the supporting plate.

In the multifunctional child safety seat, a dining table is preferably further included, and the dining table is mounted on one side of the seat through a rotation adjusting mechanism.

Among the aforementioned multi-functional children's safety seat, preferably, rotation regulation mechanism includes telescopic link mechanism, holds box, fixed block, rotation claw and fixed ball, it passes through to hold the box the fixed block is installed the side of seat, it is hollow globular structure to hold the box, sets up two third guide ways that are 90 degrees angular distributions on it, the fixed ball is fixed in through the pole hold the box in, be equipped with many slots on the fixed ball, the rotation claw pass through the ball with slot sliding fit, telescopic link mechanism's one end with rotation claw fixed connection, the other end is followed the third guide way stretch out and with dining table fixed connection.

Among the aforementioned multi-functional children's safety seat, preferably, telescopic link mechanism includes bracing piece and control tube, the control tube with rotating pawl fixed connection, the bracing piece with the cooperation of pegging graft of control tube, there is the locating hole along its length direction equipartition on the control tube, the tip of bracing piece has the perforating hole, install hollow block in the perforating hole, hollow block is inside hollow and both ends have the pinhole, and the second spring is located in the hollow block, ann has a button in the pinhole at hollow block both ends respectively the second spring is located two between the button.

Compared with the prior art, the chair comprises a backrest, a seat and armrests, wherein the backrest is connected with the seat through a backrest angle adjusting mechanism, and the armrests are installed on the side surfaces of the seat through an armrest height adjusting mechanism. The angle adjustment of the backrest can be realized through the backrest angle adjusting mechanism, so that children can keep a relatively comfortable sitting posture, the phenomenon that a sitting posture is fixed for a long time to generate boring emotions or discomfort is prevented, the height adjustment of the armrests can be realized through the armrest height adjusting mechanism, the proper height can be adjusted according to the height of a sitting person, and the sitting person is more comfortable.

In one embodiment, the dining table is mounted on one side of the seat through a rotation adjusting mechanism. Through the arrangement of the dining table, children can play toys, read books or have meals on the seat, and the practicability of the seat is improved.

Drawings

FIG. 1 is a side view of the overall structure of the present invention;

FIG. 2 is an isometric view of the overall structure of the present invention;

FIG. 3 is an exploded view of the armrest and armrest height adjustment mechanism;

FIG. 4 is a partial schematic view of the armrest height adjustment mechanism;

FIG. 5 is a schematic view of a half-section of the structure shown in FIG. 4;

FIG. 6 is a schematic view showing the structure of the pressing block, the guide rod, the wing plate and the engaging portion;

FIG. 7 is a schematic view of the armrest;

FIG. 8 is a schematic view of two extreme positions of the backrest angle adjustment mechanism;

FIG. 9 is an exploded view of the backrest angle adjustment mechanism;

FIG. 10 is an isometric view of the table and the rotation adjustment mechanism;

FIG. 11 is an exploded view of the table and the rotation adjustment mechanism;

fig. 12 is a schematic view of the structure of the dining table, the rotating claws and the fixing balls.

Description of reference numerals: 1-backrest, 2-safety catch arm, 3-armrest height adjustment mechanism, 4-armrest, 5-accommodating box, 6-fixing block, 7-seat, 8-foot pedal, 9-third guide groove, 10-fixing plate, 11-mounting seat, 12-backrest angle adjustment mechanism, 13-dining table, 14-adjusting tube, 15-rotating shaft, 16-supporting plate, 17-supporting rod, 18-mounting opening, 19-pressing block, 20-second jaw, 21-guide rod, 22-wing plate, 23-clamping part, 24-spring, 25-connecting body, 26-notch, 27-height adjustment groove, 28-transverse notch, 30-first jaw, 31-pin hole, 32-armrest body, 33-handrail sleeve, 34-height adjusting plate, 35-fixed block, 37-movable plate, 38-first gear, 39-second gear, 40-U-shaped limit frame, 41-second guide groove, 42-wrench, 43-tension spring, 44-fixed plate, 45-guide groove, 46-slide bar, 47-mounting column, 48-coil spring, 50-rotating claw, 51-fixed ball, 52-bar, 53-ball, 54-groove, 55-button, 56-second spring, 57-hollow block and 58-positioning hole.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

The embodiment of the invention comprises the following steps: as shown in fig. 1 and 2, a multifunctional child safety seat comprises a backrest 1 and a seat 7, and further comprises an armrest 4, wherein the backrest 1 is connected with the seat 7 through a backrest angle adjusting mechanism 12, and the armrest 4 is installed on the side surface of the seat 7 through an armrest height adjusting mechanism 3.

The angle adjustment of the backrest 1 can be realized through the arrangement of the backrest angle adjusting mechanism 12, so that a more comfortable sitting posture can be kept for children, and the physical fatigue caused by long-time sitting is prevented. The armrest height adjusting mechanism 3 can adjust the height of the armrest according to the age and the height of the user, so that the user can feel more comfortable.

It should be noted that there are many implementation forms of the armrest height adjusting mechanism 3 and the backrest angle adjusting mechanism 12, and any configuration form is within the scope of the present invention as long as both the backrest angle adjustment and the armrest height adjustment can be achieved.

In a specific embodiment, as shown in fig. 3-6, the armrest height adjusting mechanism 3 includes a mounting seat 11, a height adjusting plate 34 and a button assembly, the height adjusting plate 34 is disposed on the bottom surface of the rear end of the armrest 4, the height adjusting plate and the armrest are in an L-shaped structure, a height adjusting groove 27 is formed from the bottom of the height adjusting plate 34 to the top thereof, a plurality of sets of fixing blocks 35 are disposed in the height adjusting groove 27, each set of two fixing blocks 35 is oppositely fixed on two surfaces of the height adjusting groove 27, a gap 26 is disposed between any two adjacent sets of fixing blocks 35, the gap 26 is equal in size, that is, each set of fixing blocks 35 is arranged at equal intervals; the mounting seat 11 is fixed on the seat 7, the mounting seat 11 is provided with an armrest mounting channel arranged in the vertical direction, the upper end opening of the armrest mounting channel is positioned on the top surface of the mounting seat 11, the side surface of the mounting seat 11 is provided with a mounting port 18 communicated with the armrest mounting channel, the height adjusting plate 34 is in plug-in connection with the armrest mounting channel, the button assembly is mounted on the mounting port 18 and provided with a guide rod 21 and a wing plate 22, the wing plate 22 is arranged at the free end of the guide rod 21, the wing plate 22 can move between a first position and a second position, the wing plate 22 is clamped with the notch 26 when being positioned at the first position, and the wing plate 22 is separated from the notch 26 when being positioned at the second position.

It should be noted that, the button assembly may adopt a mechanical button or an electric button assembly, the embodiment adopts a mechanical structure, the button assembly includes a pressing block 19, a spring 24 and a connecting main body 25, the connecting main body 25 is provided with at least two transverse notches 28, the mounting surface is provided with at least two first claws 30 along the circumferential direction, the pressing block 19 is provided with a second claw 20, the second claw 20 passes through the mounting hole of the connecting main body 25 and then is clamped with the transverse notches 28 to prevent the pressing block 19 from being separated from the connecting main body 25, the connecting main body 25 is mounted on the mounting opening 18, and the mounting opening 18 is provided with a clamping groove matched with the first claws 30; the guide rod 21 is fixed to the pressing block 19, and the spring 24 is fitted to the guide rod 21, and has one end abutting against the pressing block 19 and the other end abutting against the inner wall surface of the mounting hole 18. The free end of the guide rod 21 is also provided with a catch 23.

The principle of handrail height adjustment: when the height of the handrail needs to be adjusted, the pressing block 19 is pressed by fingers, the pressing block 19 moves towards the direction close to the height adjusting plate 34, the spring 24 is compressed, along with the movement of the pressing block 19, the wing plates 22 on the guide rod 21 are separated from the notches 26, at the moment, the wing plates 22 are located at the second position, as the diameter of the guide rod 21 is smaller than the width of the height adjusting groove 27, at the moment, the handrail 4 is held by the other hand to be lifted upwards or downwards, when the height of the handrail is adjusted to be suitable for the height of the handrail, the pressing block 19 is released, the guide rod 21 carries the wing plates 22 to move towards the direction far away from the height adjusting plate 34 under the elastic force of the spring 24, at the moment, the wing plates 22 are clamped into the corresponding notches 26 until the clamping support portions 23 are abutted against. At this time, the height adjusting plate 34 cannot move up and down, and the armrest is locked. Note that the thickness of the wings 22 is less than the height of the notches 26.

In another embodiment, as shown in fig. 8 and 9, the backrest angle adjusting mechanism 12 includes a fixed plate 10, a movable plate 37 and a support plate 16, the lower end of the fixed plate 10 is fixedly connected with the seat 7, the top of the fixed plate 10 is fixedly mounted with a first gear 38 through a pin hole 31, the top of the fixing plate 10 is provided with an arc-shaped concave part, the supporting plate 16 is fixedly connected with the backrest 1, the lower end of the supporting plate 16 is provided with a rotating shaft 15, the rotating shaft 15 penetrates through the axle center of the first gear 38, and is rotatably connected with the lower end of the movable plate 37, the supporting plate 16 is provided with a U-shaped limiting frame 40 with an opening facing the first gear 38, a second gear 39 is installed in the U-shaped limiting frame 40, the upper end of the movable plate 37 is provided with a wrench assembly, the plate surface is provided with a guide groove 45 which is obliquely arranged at a position opposite to the U-shaped limiting frame 40, and the rotating shaft of the second gear 39 is arranged in the guide groove 45.

Backrest adjustment principle: the second gear 39 is meshed with the first gear 38 in a natural state, the second gear 39 is positioned at the lowest end of the U-shaped limiting frame 40, it should be noted that the diameter of the second gear is smaller than that of the first gear 38, the angle of the backrest 1 is not adjustable, when the angle needs to be adjusted, the wrench assembly is moved by hand, the movable plate 37 rotates around the rotating shaft 15, at this time, the rotating shaft of the second gear 39 is guided by the guide groove 45, moves upwards along the U-shaped limiting frame 40, moves to the top of the U-shaped limiting frame 40, at this time, the second gear 39 is separated from the first gear 38, the two gears are not meshed, at this time, the support plate 16 can rotate relative to the fixed plate 10, namely, at this time, the user can adjust the angle of the backrest 1 as required, after the angle is adjusted, the wrench assembly is restored to the original position, the backrest 1 can be locked, and at this time, the first gear 38 is meshed with the second gear 39 again.

In a preferred embodiment, the wrench assembly includes a wrench 42, a tension spring 43 and a fixing plate 44, the supporting plate 16 has a second guiding groove 41, the movable plate 37 has a mounting hole at an upper end thereof, a sliding rod 46 of the wrench 42 passes through the mounting hole and then slidably fits into the second guiding groove 41, the movable plate 37 has a mounting post 47, the supporting plate 16 has a fixing plate 44, and one end of the tension spring 43 is fixedly connected to the mounting post 47 and the other end is fixedly connected to the fixing plate 44.

Through the structural design, after the angle of the backrest 1 is adjusted, only the wrench 42 needs to be released, and the wrench 42 can restore to the original position under the action of the tension spring 43, so that the first gear 38 and the second gear 39 are meshed again, and automatic locking is realized.

Further, the backrest angle adjusting mechanism 12 further comprises a coil spring 48, the coil spring 48 is sleeved on the rotating shaft 15, one end of the coil spring 48 is fixedly connected with the rotating shaft 15, and the other end of the coil spring is fixedly connected with the supporting plate 16. By the arrangement of the coil spring 48, when the first gear 38 and the second gear 39 are in the separated state, the backrest 1 can be automatically returned to the upright state (limit position) by the action of the coil spring 48 without considering to move the backrest 1.

In another preferred embodiment, a dining table 13 is further included, and the dining table 13 is installed at one side of the seat 7 by a rotation adjusting mechanism. Referring to fig. 10-12, the rotation adjusting mechanism includes a telescopic rod mechanism, a containing box 5, a fixing block 6, a rotating claw 50 and a fixing ball 51, the containing box 5 is installed on the side of the seat 7 through the fixing block 6, the containing box 5 is a hollow spherical structure, two third guiding grooves 9 arranged at an angle of 90 degrees are formed in the containing box 5, the fixing ball 51 is fixed in the containing box 5 through a rod 52, a plurality of grooves 54 are formed in the fixing ball 51, the rotating claw 50 is in sliding fit with the grooves 54 through the spherical ball 53, one end of the telescopic rod mechanism is fixedly connected with the rotating claw 50, and the other end of the telescopic rod mechanism extends out of the third guiding grooves 9 and is fixedly connected with the dining table 13.

Adjustment principle of the dining table 13: since the accommodation box 5 has two third guide grooves 9 arranged at an angle of 90 degrees, the dining table 13 can be manually adjusted in the two third guide grooves 9, one of the third guide grooves 9 faces the front-rear direction of the seat 7, the other third guide groove 9 faces the left-right direction of the seat 7, when the telescopic rod mechanism is located at the limit position of the third guide groove 9 in the front-rear direction, the dining table 13 is located at the side of the seat 7, and the plate surface of the dining table 13 is in a vertical state, and when the telescopic rod mechanism is located at the limit position of the third guide groove 9 in the left-right direction, the dining table 13 is located at the front of the seat 7, and the plate surface of the dining table 13 is in a horizontal state. The arrangement of the fixed ball 51, the rotating claw 50, the groove 54 and the round ball 53 makes the dining table smooth when adjusting the angle.

It should be noted that, because the length of the armrest 4 is long, interference may occur when the dining table 13 is adjusted, the armrest 4 may be designed as a reversible armrest, or may be designed as a two-segment structure, as shown in fig. 7, the armrest 4 is composed of an armrest body 32 and an armrest sleeve 33, the armrest body 32 and the armrest sleeve 33 are connected in an inserting manner, when the dining table 13 needs to be adjusted, the armrest sleeve 33 is detached, and then the armrest is mounted on the armrest body 32 as required.

Further, telescopic link mechanism includes bracing piece 17 and control tube 14, control tube 14 and rotating claw 50 fixed connection, bracing piece 17 and control tube 14 cooperation of pegging graft, it has locating hole 58 to follow its length direction equipartition on the control tube 14, the tip of bracing piece 17 has the perforating hole, install hollow block 57 in the perforating hole, hollow block 57 is inside hollow and both ends have the pinhole, second spring 56 is located hollow block 57, ann has button 55 second spring 56 respectively in the pinhole at hollow block 57 both ends and is located between two buttons 55.

Through telescopic link mechanism's setting, can adjust its total length according to the demand, change the position of dining table, make it more comfortable when using.

In addition, safety blocking arms 2 are further arranged on two sides of the backrest 1, and the safety blocking arms 2 can protect the heads of children. The front end of the seat 7 is also provided with a pedal 8, and the pedal 8 can improve the riding comfort.

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims

1. A multi-functional child safety seat, includes back (1) and seat (7), its characterized in that: the backrest (1) is connected with the seat (7) through a backrest angle adjusting mechanism (12), and the armrests (4) are arranged on the side surfaces of the seat (7) through an armrest height adjusting mechanism (3);

the backrest angle adjusting mechanism (12) comprises a fixed plate (10), a movable plate (37) and a supporting plate (16), the fixed plate (10) is fixedly connected with the seat (7), a first gear (38) is fixedly mounted at the top of the fixed plate (10), the supporting plate (16) is fixedly connected with the backrest (1), a rotating shaft (15) is arranged at the lower end of the supporting plate (16), the rotating shaft (15) penetrates through the first gear (38) and is rotatably connected with the lower end of the movable plate (37), a U-shaped limiting frame (40) with an opening direction facing the first gear (38) is arranged on the supporting plate (16), a second gear (39) is arranged in the U-shaped limiting frame (40), a wrench assembly is arranged at the upper end of the movable plate (37), and a guide groove (45) which is obliquely arranged is arranged at a position, opposite to the U-shaped limiting frame (40), on the plate surface of the movable plate (37), the rotating shaft of the second gear (39) is arranged in the guide groove (45).

2. A multi-function child safety seat according to claim 1, wherein: the armrest height adjusting mechanism (3) comprises a mounting seat (11), a height adjusting plate (34) and a button assembly, wherein the height adjusting plate (34) is arranged on the bottom surface of the tail end of the armrest (4), a height adjusting groove (27) is formed from the bottom of the height adjusting plate (34) to the top of the height adjusting plate, a plurality of groups of fixing blocks (35) are arranged in the height adjusting groove (27), and a gap (26) is formed between any two adjacent groups of fixing blocks (35); the installation seat (11) is provided with an armrest installation channel arranged in the vertical direction, the side surface of the installation seat is provided with an installation opening (18) communicated with the armrest installation channel, the height adjusting plate (34) is in plug-in connection with the armrest installation channel, the button assembly is installed on the installation opening (18), the button assembly is provided with a guide rod (21) and a wing plate (22), the wing plate (22) is arranged at the free end of the guide rod (21), the wing plate (22) can move between a first position and a second position, when the wing plate (22) is located at the first position, the wing plate is clamped with the notch (26), and when the wing plate is located at the second position, the wing plate is separated from the notch (26).

3. A multi-function child safety seat according to claim 2, wherein: the button assembly comprises a pressing block (19), a spring (24) and a connecting main body (25), wherein the connecting main body (25) is provided with at least two transverse notches (28), the mounting surface of the connecting main body is circumferentially provided with at least two first clamping claws (30), the pressing block (19) is provided with a second clamping claw (20), the second clamping claw (20) passes through a mounting hole of the connecting main body (25) and then is clamped with the transverse notches (28), the connecting main body (25) is mounted on the mounting opening (18), and the mounting opening (18) is provided with a clamping groove matched with the first clamping claw (30); the guide rod (21) is fixed on the pressing block (19), the spring (24) is sleeved on the guide rod (21), one end of the spring is abutted against the pressing block (19), and the other end of the spring is abutted against the inner wall surface of the mounting opening (18).

4. A multi-function child safety seat according to claim 3, wherein: the free end of the guide rod (21) is also provided with a clamping part (23).

5. A multi-function child safety seat according to claim 1, wherein: the spanner subassembly includes spanner (42), extension spring (43) and fixed plate (44), second guide way (41) have on backup pad (16), the upper end of fly leaf (37) has the mounting hole, slide bar (46) of spanner (42) pass behind the mounting hole with second guide way (41) sliding fit, fly leaf (37) are gone up and have erection column (47), have on backup pad (16) fixed plate (44), the one end of extension spring (43) with erection column (47) fixed connection, the other end with fixed plate (44) fixed connection.

6. A multi-function child safety seat according to claim 1, wherein: the backrest angle adjusting mechanism (12) further comprises a coil spring (48), the coil spring (48) is sleeved on the rotating shaft (15), one end of the coil spring is fixedly connected with the rotating shaft (15), and the other end of the coil spring is fixedly connected with the supporting plate (16).

7. A multi-functional child safety seat according to any one of claims 1-6, wherein: still include dining table (13), dining table (13) are installed through rotation adjustment mechanism one side of seat (7).

8. A multi-function child safety seat according to claim 7, wherein: rotatory adjustment mechanism includes telescopic link mechanism, holds box (5), fixed block (6), rotating claw (50) and fixed ball (51), it passes through to hold box (5) fixed block (6) are installed the side of seat (7), it is hollow globular structure to hold box (5), sets up two third guide way (9) that are 90 degrees angular distributions on it, fixed ball (51) are fixed in through pole (52) hold in box (5), be equipped with many slot (54) on fixed ball (51), rotating claw (50) through ball (53) with slot (54) sliding fit, telescopic link mechanism's one end with rotating claw (50) fixed connection, the other end is followed third guide way (9) stretch out and with dining table (13) fixed connection.

9. A multi-function child safety seat according to claim 8, wherein: telescopic link mechanism includes bracing piece (17) and control tube (14), control tube (14) with rotating claw (50) fixed connection, bracing piece (17) with control tube (14) cooperation of pegging graft, there are locating hole (58) along its length direction equipartition on control tube (14), the tip of bracing piece (17) has the perforating hole, install hollow block (57) in the perforating hole, hollow block (57) inside is hollow and both ends have the pinhole, and second spring (56) are located in hollow block (57), ann has a button (55) respectively in the pinhole at hollow block (57) both ends second spring (56) are located two between button (55).