CN113276740B

CN113276740B - Automobile safety seat for children

Info

Publication number: CN113276740B
Application number: CN202110563829.2A
Authority: CN
Inventors: 许宏伟; 况志勇
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-08-02
Anticipated expiration: 2041-05-24
Also published as: CN113276740A

Abstract

The invention discloses a child car safety seat with a forward use state and a reverse use state, which comprises a base and a seat body, wherein the seat body is rotatably arranged on the base. The child car safety seat further comprises a locking mechanism and an unlocking mechanism, the locking mechanism is arranged between the base and the seat body, the locking mechanism is provided with two locking positions on the base, and the two locking positions are arranged at intervals along the circumferential direction of the base. The unlocking mechanism at least comprises two groups of operating parts, the two groups of operating parts are arranged on two different sides of the seat body in the width direction, and any one group of operating parts can be operated to independently unlock the locking mechanism at two locking positions. According to the child car safety seat provided by the invention, the two locking positions are arranged, so that the seat is more stable and is not easy to shake, and the safety performance is improved; through setting up two unblock operating parts, the head of a family that is located one side need not bow or turn round just can realize the unblock and the switching-over of seat body, and it is very simple and convenient to operate.

Description

Automobile safety seat for children

Technical Field

The invention relates to the field of children products, in particular to a child car safety seat.

Background

In order to adapt to the safety requirements of children of different ages, the existing automobile safety seats for many children can be rotationally adjusted, and the seat body can rotate 360 degrees relative to the base, so that the automobile safety seats for many children have a forward use state and a reverse use state. These rotatable children's car safety seat all include rotation locking and release mechanism, and its locking mechanical system sets up in the anterior of seat body and base usually, and just locks in a latched position under the same state, and the stability of seat body is relatively poor, rocks easily, and the security is lower. On the other hand, the unlocking operation member is mostly provided at the front of the base, which requires an adult to reach the front of the bottom of the child car seat for unlocking operation, which is obviously inconvenient in a narrow car space.

In addition, many rotatable seat bodies can not be detached from the base, which causes the child car safety seat to be heavy and inconvenient to operate when being installed, and different seat bodies and bases can not be matched for use.

Disclosure of Invention

The invention aims to provide a rotatable child car safety seat which is high in safety performance and convenient to unlock, aiming at the problems in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

a child car safety seat comprises a base and a seat body, wherein the seat body is rotatably arranged on the base around a rotation center line, the child car safety seat is provided with a forward use state that the orientation of the seat body is consistent with the driving direction of a car and a reverse use state that the orientation of the seat body is opposite to the driving direction of the car, the child car safety seat further comprises a locking mechanism used for locking the child car safety seat in the forward use state or the reverse use state, and an unlocking mechanism used for unlocking the locking mechanism, the locking mechanism is arranged between the base and the seat body, the locking mechanism is provided with two locking positions on the base, and the two locking positions are arranged at intervals along the circumferential direction of the base; the unlocking mechanism at least comprises two groups of operating parts, the two groups of operating parts are arranged on two different sides of the seat body in the width direction, and the operating parts can independently unlock the locking mechanism at two locking positions.

Preferably, the two locking positions are respectively arranged at the front side and the rear side of the base.

Preferably, the locking mechanism comprises a locking member and a mating member which are matched with each other, the locking member comprises a first locking member and a second locking member which are movably arranged on the seat body respectively, the mating member comprises a first mating member and a second mating member which are arranged on the base, the first locking member and the second locking member are arranged along the circumferential direction of the seat body at an interval of 180 degrees, the first mating member and the second mating member are arranged along the circumferential direction of the base at an interval of 180 degrees, the first locking member is matched and locked with the first mating member when the child car safety seat is in a forward use state, and the second locking member is matched and locked with the second mating member; when the child car safety seat is in a reverse use state, the first locking piece is matched and locked with the second matching piece, and the second locking piece is matched and locked with the first matching piece; the locking mechanism further comprises a first locking elastic piece used for providing acting force required by the first locking piece to move towards the first matching piece or the second matching piece, and a second locking elastic piece used for providing acting force required by the second locking piece to move towards the first matching piece or the second matching piece.

Further preferably, the first locking member and the second locking member are slidably disposed on the seat body, two sets of the operating members are slidably disposed on the seat body, each set of the operating members is connected to a first traction cable and a second traction cable, one end of the first traction cable is connected to the operating member, the other end of the first traction cable is connected to the first locking member, one end of the second traction cable is connected to the operating member, and the other end of the second traction cable is connected to the second locking member.

Further preferably, the seat body includes an installation seat and a seat, the seat is slidably disposed on the installation seat, the first locking member and the second locking member are slidably disposed on the installation seat, and the first locking member and the second locking member are respectively disposed at front and rear end portions of the installation seat.

Further preferably, the base is provided with a circular guide rail, the first locking member and the second locking member are arranged on the guide rail in a manner of relative sliding along the guide rail, and the first fitting member and the second fitting member are respectively arranged on the front side and the rear side of the guide rail.

Preferably, the seat body is detachably arranged on the base, a quick-release structure is arranged between the seat body and the base, the quick-release structure comprises a first quick-release structure arranged on the base and a second quick-release structure arranged on the seat body, and when the first quick-release structure is matched and connected with the second quick-release structure, the seat body can rotate around a rotation center line relative to the base.

Further preferably, the base is fixedly provided with a central shaft, the axial lead of the central shaft is the rotation center line, the first quick-release structure is fixedly arranged on a limiting protrusion on the central shaft, the limiting protrusion extends outwards from the central shaft along a direction perpendicular to the rotation center line, the second quick-release structure is arranged on a limiting groove at the bottom of the base, the limiting groove comprises a central groove for the central shaft to be matched and inserted and an extending groove for the limiting protrusion to be matched and inserted, the central groove is communicated with the extending groove, the child car safety seat is in a forward use state or in a reverse use state, and the extending groove is deviated from the extending direction of the limiting protrusion.

Preferably, the seat body includes a mounting seat and a seat, the seat is slidably disposed on the mounting seat, a sliding extending direction of the seat when the seat slides relative to the mounting seat is an arc with an upward opening, the seat has a plurality of operating positions on the mounting seat, and an angle locking mechanism for locking the seat under the plurality of operating positions is disposed between the seat and the mounting seat.

Preferably, the child car seat further includes a limiting mechanism for limiting the seat and the mounting seat from sliding relatively in a forward use state, the limiting mechanism includes a supporting limiting part disposed on the base and a seat limiting part disposed on the seat, and when the child car seat is in the forward use state, the supporting limiting part is connected with the seat limiting part in a matching manner; when the child car safety seat is in a reverse use state, the supporting limiting part is disengaged from the seat limiting part.

Due to the application of the technical scheme, the child car safety seat provided by the invention has a forward use state and a reverse use state, and the seat body is locked at two positions of the base at the same time, so that the seat is more stable and is not easy to shake, and the safety performance is improved; the unlocking operation parts are arranged on the two sides of the seat body, so that parents located on any side can synchronously unlock the locking mechanisms at the two locking positions without bending or turning, unlocking and reversing of the seat body are realized, and the operation is very simple and convenient.

Drawings

FIG. 1 is a schematic front view of a child car seat according to an embodiment of the present invention in a forward use position;

FIG. 2 is an exploded perspective view of the child car seat according to this embodiment;

FIG. 3 is a schematic perspective view of the base in the present embodiment;

FIG. 4 is an exploded perspective view of the seat body in this embodiment;

FIG. 5 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the child car seat of this embodiment in a reversed use state;

FIG. 7 is a schematic view of the internal structure of the base of this embodiment after a portion of the structure is hidden;

FIG. 8 is a schematic view of the internal structure of the seat body of the present embodiment with a portion of the structure hidden;

FIG. 9-1 is a perspective view of the first bracket of this embodiment;

FIG. 9-2 is a perspective view of a second bracket according to this embodiment;

FIGS. 9-3 are perspective views of a third bracket according to this embodiment;

FIG. 10 is a perspective view of the frame structure in the forward use state of the present embodiment;

fig. 11 is a perspective view of a frame structure in a reverse use state in the present embodiment;

fig. 12 is a schematic front view of the base and the unlocking mechanism in the present embodiment;

FIG. 13 is a schematic cross-sectional view B-B of FIG. 12;

FIG. 14 is a perspective view of the mounting block and the cable in this embodiment;

FIG. 15 is a schematic cross-sectional view of the mount and the pull cable of this embodiment;

FIG. 16 is a partial perspective view of the guide rail and locking member of the present embodiment;

FIG. 17 is a schematic top view of the base and the mounting base of the present embodiment;

FIG. 18 is a perspective view of the base of this embodiment with portions of the base hidden;

FIG. 19 is a perspective view of the base of this embodiment shown at another angle after the base has been partially hidden;

FIG. 20 is a perspective view of the indicating apparatus of this embodiment;

FIG. 21 is an enlarged view at C of FIG. 20;

FIG. 22 is a partial schematic structural view of the pointing device of this embodiment;

FIG. 23 is a partial schematic view showing the construction of the indicating apparatus of this embodiment, wherein the locking mechanism is in a locked condition;

FIG. 24 is a partial schematic view of the indicating device of this embodiment with the locking mechanism in an unlocked position;

FIG. 25 is a schematic cross-sectional view of the child car seat of this embodiment shown in a forward use position;

FIG. 26 is a schematic cross-sectional view of the child car safety seat of this embodiment in a reverse use configuration, wherein the seat is in a first angular position;

FIG. 27 is a schematic cross-sectional view of the child car safety seat of this embodiment in a reverse use position, wherein the seat is at a second angular position;

FIG. 28 is a perspective view of the angle locking mechanism of the present embodiment in a locked state;

FIG. 29 is a perspective view of the angle locking mechanism of the present embodiment in an unlocked state;

FIG. 30 is an exploded view of the positioning member and unlocking member of the present embodiment;

FIG. 31 is a schematic perspective view of the seat body of the present embodiment;

FIG. 32 is a schematic perspective view of the seat body in this embodiment from a top view;

FIG. 33 is an exploded view of the stopper in this embodiment;

FIG. 34 is a side elevational view of the seat body in this embodiment;

FIG. 35 is a schematic cross-sectional view of D-D of FIG. 34;

FIG. 36 is an enlarged view at G of FIG. 35;

FIG. 37 is a top view of the base and seat blocker of the present embodiment with the first seat blocker abutting the first base blocker;

FIG. 38 is a top view of the base and seat blocker of the present embodiment with the second seat blocker abutting the second base blocker;

FIG. 39 is a schematic side view of the seat body of this embodiment during rotation with the seat in a second angular position;

FIG. 40 is a schematic cross-sectional view E-E of FIG. 39;

FIG. 41 is a schematic side view of the seat body of this embodiment during rotation with the seat in a first angular position;

FIG. 42 is a schematic cross-sectional view F-F of FIG. 41;

wherein: 1000. a base; 1100. a rotation support; 1101. a guide rail; 1200. a rear supporting part; 1300. a first bracket; 1301. a central shaft;

2000. a seat body; 2100. a mounting seat; 2110. a second bracket; 2200. a seat; 2201. a backrest part; 2210. a third support;

11. a locking member; 111. a first locking member; 112. a second locking member; 121. a first mating member; 122. a second mating member; 13. locking the elastic member; 131. a first locking spring; 132. a second locking spring;

21. an operating member; 210. a handle base; 22. A traction cable; 221. a first traction cable; 222. a second traction cable;

31. a limiting bulge; 32. a limiting groove; 321. a central slot; 322. an extension groove;

41. an indicator; 411. a first portion; 412. a second portion; 42. displaying a window; 43. an indicating elastic member; 44. an abutting member; 44a, a pushing part; 44b, a pulling part; 45. pulling the cable; 45a, a first end; 45b, a second end; 451. a pull cable guide;

51. a positioning member; 511. positioning pins; 512. a bolt; 52. positioning holes; 53. positioning the elastic member; 54. unlocking the lock; 541. unlocking the chute; 55. a guide groove; 56. a guide member; 57. an adjustment member; 571. a connecting member;

61. a base stop; 611. a first base stop; 612. a second base stop; 62. a seat blocker; 621. a first seat blocker; 621a, a first blocking surface; 622. a second seat blocker; 622a, a second blocking surface; 631. a first shaft; 632. a second shaft; 651. a first torsion spring; 652. a second torsion spring; 661. a first fixed seat; 662. a second fixed seat;

71. a base limit piece; 71a, a first hook portion; 72. a mount stop; 72a, a second hook portion; 73. supporting a limiting part; 74. a seat limit member;

x, a rotation center line; y, a first rotating axis; z and a second rotating axis; q, the shaft axis of the first shaft; r, the axis of the second shaft.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the invention may be more readily understood by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", "left-right", "height", "front-back" and the like indicate the orientation or positional relationship as viewed by a child when the child car seat is in a forward use state and the child is normally seated on the child car seat, based on fig. 1.

Referring to fig. 1 to 6, a child car safety seat includes a base 1000 and a seat body 2000, wherein the seat body 2000 is rotatably disposed on the base 1000 around a rotation center line X, and the rotation center line X extends from bottom to top toward a front side of the base 1000 in an inclined manner. When the child car seat is used, the base 1000 is relatively and fixedly connected to the car seat, and the seat body 2000 can rotate 360 degrees relative to the base 1000, so that the child car seat has a forward use state (as shown in fig. 5) and a reverse use state (as shown in fig. 6): in the forward use state, the orientation of the seat body 2000 is the same as the driving direction of the automobile, and the seat is suitable for older children; in the reverse use state, the seat body 2000 is oriented in the direction opposite to the traveling direction of the vehicle, and is suitable for younger infants.

Further, the seat body 2000 includes a mounting base 2100 and a seat 2200, wherein the mounting base 2100 is rotatably connected to the base 1000 through a central shaft 1301, and a shaft axis of the central shaft 1301 is a rotation center line X. The seat 2200 is slidably provided on the mount 2100, and a sliding extending direction of the seat 2200 when sliding with respect to the mount 2100 is an arc with an upward opening. In this way, the seat 2200 has a plurality of operating positions on the mount 2100, and an angle locking mechanism for locking the seat 2200 in the plurality of operating positions is provided between the seat 2200 and the mount 2100, that is, the seat 2200 can adjust the pitch angle to adjust the child to a more comfortable riding posture.

In order to fulfill many functions of the child car seat, in the present embodiment, the child car seat includes a locking mechanism for locking itself in a forward use state or a reverse use state, and an unlocking mechanism for unlocking the locking mechanism, wherein the locking mechanism is disposed between the base 1000 and the mounting seat 2100. In order to improve stability, the child car seat further includes a limiting mechanism for limiting the relative movement between the base 1000 and the seat body 2000 in the height direction and the front-back direction, and the seat 2200 in this embodiment can adjust the pitch angle only in the reverse use state, so the limiting mechanism further has a function of limiting the relative sliding between the seat 2200 and the mounting seat 2100 in the forward use state, so that the connection between the seat body 2000 and the base 1000 is more stable and is less prone to shake. Further, in order to enable the limiting mechanism to function better in the forward use position, the child car seat comprises a blocking mechanism that ensures that the seat 2200 is always in a specific pitch angle position in the forward use position.

In this embodiment, the base 1000 specifically includes a rotation supporting portion 1100 having a hemispherical recess, and a rear supporting portion 1200 fixedly disposed at the rear portion of the rotation supporting portion 1100. The seat 2200 has a backrest 2201. The mount 2100 is actually embedded in the bottom of the seat 2200, the lower surface of the mount 2100 and the lower surface of the seat 2200 are located in the same curved surface, i.e., a first virtual surface, which is a spherical surface, and the sliding extending direction of the seat 2200 with respect to the mount 2100 is an arc on the first virtual surface, so that when the seat 2200 slides with respect to the mount 2100, the lower surface of the seat body 2000 is always located in the first virtual surface. Accordingly, the inner surface of the rotation support portion 1100 is located in a second virtual plane, which is also a spherical surface, and the radius of the second virtual plane is slightly larger than that of the first virtual plane, so that the lower portion of the seat body 2000 can be relatively slidably embedded in the rotation support portion 1100, and the inner wall of the rotation support portion 1100 can provide a large-scale, uniform and stable enclosure and support for the seat body 2000, no matter in a stationary state, during the sliding of the seat 2200 with respect to the mounting seat 2100, or during the rotation of the seat body 2000 as a whole around the rotation center line X. When the child car seat is in the forward use state, the backrest 2201 of the seat 2200 abuts against the rear support 1200, and further supports the seat 2200.

Referring to fig. 7 to 11, in order to improve the strength of each component of the child car seat, the base 1000, the mounting base 2100, and the seat 2200 are each provided with a rigid frame structure, and the frame structure is made of a metal material. Specifically, the base 1000 has a first bracket 1300, the mounting 2100 has a second bracket 2110, the seat 2200 has a third bracket 2210, and the first bracket 1300, the second bracket 2110, and the third bracket 2210 cooperatively couple to each other to provide a rigid structural support for the child car seat.

The specific structures of the locking mechanism and the unlocking mechanism in this embodiment are first described below:

the locking mechanism includes a locking member 11 and a mating member, the locking member 11 includes a first locking member 111 and a second locking member 112 slidably disposed on the mounting base 2100, respectively, and the mating member includes a first mating member 121 and a second mating member 122 fixedly disposed on the base 1000. Referring to fig. 2 and 3, in the present embodiment, the first engaging element 121 and the second engaging element 122 are locking grooves respectively formed on the inner walls of the front and rear sides of the rotation supporting portion 1100, wherein the first engaging element 121 is located at the rear side and the second engaging element 122 is located at the front side, so as to form two locking positions on the base 1000.

Referring to fig. 14 and 15, in the locking tongue of the first locking member 111 and the second locking member 112, in the forward use state, the first locking member 111 is located at the front end of the mounting base 2100, the second locking member 112 is located at the rear end of the mounting base 2100, and the sliding directions of the first locking member 111 and the second locking member 112 are located on the same straight line and are both perpendicular to the extending direction of the rotation center line X.

Referring to fig. 5 and 6, in the forward use state, the first locking member 111 is inserted into the first mating member 121, and the second locking member 112 is inserted into the second mating member 122; in the reverse use state, the first locking piece 111 is inserted in the second fitting member 122, and the second locking piece 112 is inserted in the first fitting member 121.

Further, as shown in fig. 16 and 17, a guide rail 1101 is disposed on an inner side wall of the rotation support 1100, a projection of the guide rail 1101 in a virtual plane perpendicular to the rotation center line X is a circular ring, and the projection of the rotation center line X in the virtual plane is a circle center of the circular ring. The lower surfaces of the first locking member 111 and the second locking member 112 have inclined surfaces gradually inclined downward from outside to inside, the first locking member 111 and the second locking member 112 are slidably disposed on the guide rail 1101, and the inclined surfaces thereof abut against the guide rail 1101 to provide sliding guidance for the seat body 2000 to rotate around the rotation center line X. The first fitting 121 and the second fitting 122 are respectively provided on the front and rear sides of the rail 1101.

The locking mechanism further comprises a locking elastic member 13 for providing a force required for the locking member 11 to move towards the mating member, and herein, a spring is used, and the locking elastic member 13 comprises a first locking elastic member 131 and a second locking elastic member 132, which are respectively engaged with the first locking member 111 and the second locking member 112 for driving the first locking member 111 and the second locking member 112 to move in opposite directions. When the seat body 2000 rotates in place, the two sets of lock tongues correspond to the two sets of lock grooves respectively, so that the two sets of lock tongues fall into the corresponding lock grooves simultaneously under the action of the locking elastic element 13.

Referring to fig. 2, 12 and 13, in the present embodiment, the unlocking mechanism includes two sets of operating members 21, the two sets of operating members 21 are respectively disposed on two different sides of the seat body 2000 in the width direction, and the locking mechanism can be unlocked at two locking positions by operating any one set of operating members 21 independently. So set up to make the unblock operation very convenient, the head of a family that is located arbitrary side of children's car safety seat need not bow or turn round just can the one hand with seat body 2000 unblock.

Specifically, the handle holder 210 is fixedly mounted on the top of each of the two sides of the seat 2200, the operating members 21 are slidably disposed on the handle holder 210 in the up-down direction, two pulling cables 22, namely a first pulling cable 221 and a second pulling cable 222, are connected to the lower portion of each set of operating members 21, one end of the first pulling cable 221 is connected to the first locking member 111, and one end of the second pulling cable 222 is connected to the second locking member 112. When the operating piece 21 on either side is pulled to slide upwards, the first locking piece 111 and the second locking piece 112 can be pulled to move towards each other through the first traction cable 221 and the second traction cable 222, and the two lock tongues simultaneously push out of the lock grooves, so that unlocking is realized. After the child car safety seat is unlocked, the seat body 2000 can rotate around the rotation center line X, the operating piece 21 can be loosened, after the seat body 2000 rotates 180 degrees, the two groups of lock tongues are simultaneously inserted into the lock grooves under the action force of the locking elastic piece 13, and the child car safety seat is locked in another using state.

Referring to fig. 2, 3 and 17, in the embodiment, the seat body 2000 is detachably disposed on the base 1000, a quick release structure is disposed between the seat body 2000 and the base 1000, the quick release structure includes a first quick release structure disposed on the base 1000 and a second quick release structure disposed on the seat body 2000, and when the first quick release structure and the second quick release structure are cooperatively connected, the seat body 2000 can rotate around the rotation center line X relative to the base 1000; when the seat body 2000 rotates to a specific angle, the seat body can be conveniently detached from the base 1000, so that the use flexibility of the child car seat is improved.

Specifically, the central shaft 1301 is fixed on the first bracket 1300, the first quick release structure is a limiting protrusion 31 fixed on the central shaft 1301, the limiting protrusion 31 extends outward from the central shaft 1301 in a direction perpendicular to the rotation center line X, and the limiting protrusion 31 has two sets symmetrically arranged with respect to the rotation center line X. The second quick release structure is a limiting groove 32 formed in the middle of the second bracket 2110, the limiting groove 32 includes a central groove 321 for the central shaft 1301 to be inserted in a matching manner, and an extending groove 322 for the limiting protrusion 31 to be inserted in a matching manner, and the central groove 321 is communicated with the extending groove 322. When the position-limiting groove 32 and the position-limiting protrusion 31 are aligned, the seat body 2000 can be placed on the base 1000 along the extending direction of the rotation center line X, or detached from the base 1000. When the child car seat is in a forward use state or a reverse use state, the extending direction of the extending groove 322 and the extending direction of the limiting protrusion 31 deviate, and at the moment, the seat body 2000 is connected with the base 1000 and cannot be detached.

In this embodiment, the limiting protrusion 31 extends along the left and right direction of the base 1000, and the extending groove 322 extends obliquely along the front and rear direction of the second bracket 2110. If the child car safety seat is in a forward use state, the seat body 2000 is unlocked and then rotates clockwise 45 degrees or anticlockwise 135 degrees around the rotation center line X, so that the limiting groove 32 and the limiting protrusion 31 can be arranged in an aligned mode, and detachment is achieved; similarly, if the child car safety seat is in a reverse use state, the seat body 2000 rotates clockwise 45 degrees or counterclockwise 135 degrees around the rotation center line X, so that the limiting groove 32 and the limiting protrusion 31 can be aligned and arranged, and detachment is achieved.

The following explains a specific structure of the indicating device in the present embodiment:

referring to fig. 18 to 24, in order to visually indicate the locking and unlocking states of the locking mechanism and prevent parents from unknowing that the locking mechanism is not locked and causing a safety hazard, the child car safety seat further comprises an indicating device.

Indicating device is including setting up two sets of indicating mechanism of different both sides in the width direction of base 1000 branch for the head of a family who is located any side can both see indicating mechanism's state clearly, and the state that two sets of indicating mechanism instructed is the same, has the reliability.

Specifically, the display windows 42 are respectively opened on the left and right sides of the base 1000, and the display windows 42 may be simple openings or openings with transparent materials. Each group of indicating mechanisms comprises an indicating piece 41 movably arranged on the base 1000, the indicating piece 41 is positioned behind the display window 42, the indicating piece 41 is provided with an indicating surface facing the display window 42, and the area of the display window 42 is smaller than the projection area of the indicating surface, so that the indicating surface can only partially expose out of the display window 42 for external observation.

In this embodiment, the indicator 41 is rotatably disposed on the base 1000 about a first rotation axis Y extending in the front-rear direction of the base 1000, and the indicating surface is an arc surface having the first rotation axis Y as an axis, so that the indicator 41 does not hit the display window 42 and the side wall of the base 1000 when rotating up and down. The indicator 41 has a first portion 411 and a second portion 412 that meet in an up-down direction, wherein the first portion 411 is located below the second portion 412. The indication surfaces of the first portion 411 and the second portion 412 are respectively divided into a first indication surface positioned below and a second indication surface positioned above, and in order to realize an intuitive indication function, the first indication surface and the second indication surface are printed with different patterns, colors, characters and the like for distinguishing. In this embodiment, the first indicating surface is green (labeled "a" in the drawing), and the second indicating surface is red (labeled "B" in the drawing).

Thus, the indicator 41 has a first position and a second position which are switchable during the rotation about the first rotation axis Y: when the locking mechanism is in the locked state, the indicator 41 is located at the first position, the first portion 411 is exposed out of the display window 42, the second portion 412 is shielded, and the external environment observes green; when the locking mechanism is in the unlocked state, the indicator 41 is located at the second position, the second portion 412 is exposed from the display window 42, the first portion 411 is shielded, and the exterior is observed in red.

It should be noted that the locking mechanism may be in the locked state only when the child car seat is in the forward use state or the reverse use state; when the seat body 2000 is rotated or the seat body 2000 is removed from the base 1000, the indicator 41 is in the second position and the indication mechanism is red.

Further, the indicating mechanism further comprises an indicating elastic member 43 for providing the force required for moving the indicating member 41 from the first position to the second position, wherein the indicating elastic member 43 is a tension spring, one end of the tension spring is connected to the indicating member 41, and the other end of the tension spring is connected to the base 1000. When no other external force is applied to the indicator 41, the indicator 41 is maintained in the second position by the force of the indicating elastic member 43.

The indicating device further comprises a linkage for urging the indicator 41 from the second position to the first position when the locking member 11 is moved towards the mating member. The linkage mechanism specifically includes an abutting piece 44 and a pulling piece, wherein the abutting piece 44 is rotatably disposed on the base 1000 around a second rotation axis Z, the second rotation axis Z extends along the up-down direction of the base 1000, the abutting piece 44 has a pushing portion 44a and a pulling portion 44b, and the pushing portion 44a and the pulling portion 44b are disposed on two different sides of the second rotation axis Z. The traction member is specifically a traction cable 45, the traction cable 45 has a first end 45a and a second end 45b along the length direction thereof, the first end 45a is connected with the traction portion 44b, and the second end 45b is connected with the indicator 41. The pulling cable 45 and the indicating elastic piece 43 are respectively connected with the indicating piece 41 at two different sides of the first rotation axis Y, and the indicating elastic piece 43 is connected below the outer side of the first rotation axis Y and used for driving the first part 411 and the second part 412 to rotate downwards; the second end 45b is connected to the inner side of the first rotation axis Y for driving the first part 411 and the second part 412 to rotate upward.

In order to realize the cooperation between the indicating device and the locking mechanism, in this embodiment, the pushing portion 44a of the abutting member 44 is located in the lock slot, when the lock tongue is inserted into the lock slot, the lock tongue will push the pushing portion 44a to rotate towards the inside of the lock slot, so as to drive the whole abutting member 44 to rotate around the second rotation axis Z, the pulling portion 44b correspondingly rotates towards the direction away from the indicating member 41, so as to drive the pulling cable 45 to move, so that the second end portion 45b pulls the indicating member 41 downwards to rotate around the first rotation axis Y, and the indicating member 41 is switched from the second position to the first position.

Further, as shown in fig. 20, it can be seen from the foregoing that the locking mechanism in the present embodiment includes the first engaging element 121 and the second engaging element 122 respectively disposed at the front and rear sides of the base 1000, and the indicating mechanism has two sets respectively disposed at the left and right sides of the base 1000, so that in order to ensure the reliability of the indicating device, a set of the above-mentioned linkage mechanisms is disposed between each set of engaging elements and each set of the indicating element 41. That is to say, four groups of pulling cables 45 are arranged in the circumferential direction of the base 1000, the first end 45a of each group of pulling cables 45 is connected with one group of abutting pieces 44, two groups of abutting pieces 44 are arranged in the first fitting piece 121 and the second fitting piece 122 respectively, and the pushing portions 44a of two adjacent groups of abutting pieces 44 are tightly attached, so that when the lock tongue is inserted into the lock groove, the two pushing portions 44a can be pushed to rotate at the same time.

It should be noted that, for reasons of rational layout, the abutment 44 associated with a certain group of indicators 41 is located on the side relatively far from this indicator 41. Specifically, the indicator 41 on the right side is connected to the abutment 44 on the left side, and the indicator 41 on the left side is connected to the abutment 44 on the right side. The pulling portion 44b of the abutting piece 44 is located outside the pushing portion 44a in both the left-right direction and the front-rear direction of the base 1000, so that when the pushing portion 44a moves toward the inside of the lock groove, the pulling portion 44b moves in a direction away from the indicator 41.

In addition, still set firmly a plurality of tractive line guides 451 along the circumference of base 1000, every group tractive line 45 passes one or more tractive line guides 451 along self length direction in proper order, realizes the slip direction.

As can be seen from the above, when the locking mechanism is in the locked state, each set of lock tongues is correspondingly inserted into one set of lock grooves, and each set of lock tongues abuts against the pushing portions 44a of the two sets of abutting pieces 44 at the same time, so that the two sets of indicating pieces 41 are both in the first position, and the indicating mechanism displays green; when the locking mechanism is unlocked, the two groups of lock tongues both exit the lock groove, the two groups of indicating pieces 41 are switched to the second position under the action of the indicating elastic pieces 43, and the indicating mechanism is displayed in red.

The specific structure of the angle locking mechanism in this embodiment is explained next:

referring to fig. 25 to 27, in the present embodiment, when the child car safety seat is in the forward use state, the seat 2200 and the mounting seat 2100 are relatively fixed and cannot slide relative to each other, the angle between the back surface of the backrest 2201 and the horizontal plane is about 70 degrees, and the child is in a relatively upright sitting posture, so that the safety is ensured; when the child car seat is in a reverse use state, the seat 2200 has four working positions on the mounting seat 2100 corresponding to four different angular positions, and the included angles between the back surface of the backrest 2201 and the horizontal plane at the four angular positions are about 27 degrees, 31 degrees, 35 degrees and 39 degrees, respectively, where the included angle is 27 degrees and is called a first angular position, and the included angle is 39 degrees and is called a second angular position. The four angular positions correspond to a state in which the seat 2200 is gradually adjusted from the lying position to the sitting position, providing a variety of options for the child.

Since the pivot axis X extends obliquely from bottom to top toward the front side of the base 1000, the seat 2200 is located at the first angular position when the seat 2200 in the normal use state is rotated about the pivot axis X into the reverse use state. Similarly, if the seat 2200 is at an angle other than the first angle in the reverse use state, the seat body cannot rotate around the rotation center line X directly to be in the forward use state, and the specific principle thereof will be described later.

Referring to fig. 28 to 30, in the present embodiment, the angle locking mechanism includes a positioning member 51 and a matching structure. The positioning member 51 is slidably disposed on the seat 2200 along the width direction of the seat 2200, and two positioning pins 511 are fixedly disposed on the positioning member 51, and the two positioning pins 511 are spaced apart from each other along the sliding direction of the seat 2200. The engaging structure is a positioning hole 52 formed in the mounting base 2100, the positioning hole 52 has a plurality spaced apart in the sliding direction of the seat 2200, and each positioning hole 52 is adapted to receive one positioning pin 511.

Specifically, in order to improve the stability and the robustness of the angle locking mechanism, a plurality of positioning holes 52 are symmetrically formed on both left and right side walls of the mounting base 2100, and accordingly, the positioning members 51 are provided in two sets respectively disposed on both left and right sides of the mounting base 2100. Further, since two positioning pins 511 are fixedly provided on each positioning member 51, the positioning holes 52 on each side are divided into two groups corresponding to the two positioning pins 511, and the two groups of positioning holes 52 on each side are spaced apart in the sliding direction of the seat 2200. Specifically, each positioning pin 511 has four positioning holes 52 corresponding to the four operating positions of the seat 2200. When the angle locking mechanism is in a locked state, the four positioning pins 511 are respectively inserted into one corresponding positioning hole 52; when the angle locking mechanism is in the unlocked state, all the positioning pins 511 are disengaged from the positioning holes 52, and the seat 2200 can slide relative to the mounting seat 2100.

The angle locking mechanism further includes an unlocking member 54 for urging the positioning pin 511 out of the positioning hole 52, and the unlocking member 54 also has two sets which are engaged with the two sets of positioning members 51, and each set of the unlocking member 54 is slidably provided on the seat 2200 in a direction perpendicular to the sliding direction of the positioning pin 511. The unlocking member 54 is provided with an unlocking chute 541, the unlocking chute 541 gradually inclines and extends from outside to inside toward the rear of the seat 2200, the positioning member 51 is fixedly provided with a bolt 512, and the bolt 512 can be relatively slidably inserted into the unlocking chute 541. In addition, the front portion of each unlocking member 54 is provided with a positioning elastic member 53, which is embodied by a tension spring, and the positioning elastic member 53 is used for providing a force required for the unlocking member 54 to move toward the front of the seat 2200, so that the latch 512 is relatively located at the rear end of the unlocking chute 541, and the positioning pin 511 is inwardly extended and inserted into one of the positioning holes 52 without any other external force.

Further, the angle locking mechanism further includes an adjusting member 57 for unlocking operation, the adjusting member 57 is slidably provided on the upper portion of the backrest portion 2201, and the adjusting member 57 is partially located outside the seat 2200, and is provided for the user to lift and operate. Each set of unlocking members 54 is connected to the adjusting member 57 through an elongated connecting member 571, so that when the adjusting member 57 is pulled upward and rearward, the two sets of unlocking members 54 move toward the rear of the seat 2200 against the force of the positioning elastic member 53, the latch 512 slides forward along the unlocking inclined slots 541, so that the two sets of positioning members 51 move away from each other, and all the positioning pins 511 are simultaneously pulled out of the positioning holes 52, thereby unlocking the seat.

After the angle locking mechanism is unlocked, the seat 2200 is driven to slide along the mounting base 2100 to a required working position, and then the adjusting member 57 is released, the unlocking member 54 slides forward under the action of the positioning elastic member 53, and the positioning pin 511 is correspondingly inserted into the other positioning hole 52, so that the angle locking is realized.

Further, as shown in fig. 11, the angle locking mechanism further includes a guide structure for providing sliding guide of the seat 2200, the guide structure including a guide groove 55 opened on the second bracket 2110, a guide piece 56 provided on the third bracket 2210, the guide groove 55 extending in the sliding direction of the seat 2200, the guide piece 56 being inserted in the guide groove 55 in a sliding fit. Specifically, the guide 56 is a cross bar extending in the left-right direction of the third frame 2210, and has two guide grooves 55 spaced apart in the front-rear direction of the third frame 2210, the guide grooves 55 are waist-shaped grooves symmetrically opened on both left and right side walls of the second frame 2110, and each guide 56 is simultaneously inserted through the two guide grooves 55.

Next, a specific structure of the limiting mechanism in this embodiment is explained:

referring to fig. 7 to 11, the limiting mechanism includes a base limiting member 71 and a support limiting member 73 fixed on the first bracket 1300, a mount limiting member 72 fixed on the second bracket 2110, and a seat limiting member 74 fixed on the third bracket 2210, wherein the base limiting member 71 is located below the support limiting member 73, and the support limiting member 73 is located at the upper portion of the rear support portion 1200; the mount stopper 72 has two sets provided at the front and rear ends of the second bracket 2110.

The base limiting member 71, the mount limiting member 72, the support limiting member 73, and the seat limiting member 74 are all locking hooks that can be hooked to each other. The base limiting piece 71 extends inwards from the inner side wall of the base 1000, and the inner end part of the base limiting piece 71 is provided with a first hook part 71a which bends downwards; the mount stopper 72 extends outward from both front and rear ends of the second bracket 2110, and an outer end of the mount stopper 72 has a second hook portion 72a bent upward. Thus, in the process that the seat body 2000 rotates around the rotation center line X, the second hook portion 72a can be directly and slidably hooked with the first hook portion 71a along the circumferential direction of the base 1000, and no other operation is required, and when the child car safety seat is in the forward use state or the reverse use state, the mounting seat limiting member 72 and the base limiting member 71 are naturally connected in a matched manner.

Similarly, the support stopper 73 also has a hook portion that is bent inward and downward, and the seat stopper 74 has a hook portion that is bent outward and upward, and the two can be connected in a fitting manner in the normal use state.

Referring to fig. 10, in the forward use state, the mount stop 72 located at the rear of the mount 2100 is connected to the base stop 71 in a matching manner, and the seat stop 74 is connected to the support stop 73 in a matching manner, so that the seat 2200 and the mount 2100 cannot slide relatively. Referring to fig. 11, in the reverse use state, the mount stopper 72 located at the front of the mount 2100 is engaged with the base stopper 71, and the seat stopper 74 is disengaged from the support stopper 73, so that the pitch angle of the seat 2200 can be adjusted by operating the angle locking mechanism.

The specific structure of the blocking mechanism in this embodiment is explained next:

as can be seen from the foregoing, in the forward use state, the seat 2200 only has one angular position, and if the seat 2200 in the non-first angular position is directly rotated to the forward use state from the reverse use state, the position of the seat limiting member 74 and the position of the support limiting member 73 do not correspond to each other and cannot be connected in a matching manner, and at this time, the stability of the seat 2200 is not sufficiently ensured only by the limit connection between the mount seat limiting member 72 and the base limiting member 71, and when an emergency such as sudden braking occurs, a child may rush out forward along with the seat 2200, which has a great potential safety hazard.

Referring to fig. 3 and 4, in order to solve the above problem, the child car seat of the present embodiment further includes a blocking mechanism, which includes a base blocking member 61 disposed on the base 1000, and a seat blocking member 62 disposed at a lower portion of the seat 2200. The base stopper 61 protrudes upward from the second virtual surface, and the seat stopper 62 protrudes downward from the first virtual surface, so that when they are in contact with each other, the seat body 2000 is prevented from rotating.

Referring to fig. 41 and 42, in the reverse use state and when the seat 2200 is at the first angular position, the base block 61 is located below the path of the seat block 62 rotating around the rotation center line X, and the seat body 2000 can rotate to the forward use state without hindrance. Referring to fig. 39 and 40, in the reverse use state and when the seat 2200 is at the second angular position, the base stopper 61 is located on the path of the seat stopper 62 rotating around the rotation center line X, and at this time, the seat body 2000 is stopped by the base stopper 61 during the rotation process, and cannot be directly converted into the forward use state.

It should be noted that, in the present embodiment, in addition to the second angular position, the seat 2200 has two angular positions of 31 degrees and 35 degrees in the reverse use state, and the base blocking member 61 also blocks the seat blocking member 62 in the two angular positions. That is, the blocking mechanism only allows the seat 2200 in the first angular position to transition to the forward use condition.

As shown in fig. 31 to 38, since the seat body 2000 can rotate in both the clockwise and counterclockwise directions, the base block 61 and the seat block 62 each have two sets disposed in bilateral symmetry. Specifically, in the reverse use state, the base blocking member 61 has a first base blocking member 611 fixed on the left side of the base 1000 and a second base blocking member 612 fixed on the right side of the base 1000; the seat stopper 62 has a first seat stopper 621 provided on the left side of the seat 2200, and a second seat stopper 622 provided on the right side of the seat 2200, and the first base stopper 611, the first seat stopper 621, the second seat stopper 622, and the second base stopper 612 are provided in this order at intervals in the circumferential direction of the base 1000, and the two sets of base stoppers 61 are positioned in front of the two sets of seat stoppers 62, and the first base stopper 621 has a first stopper surface 621a facing the first base stopper 611, and the second base stopper 622 has a second stopper surface 622a facing the second base stopper 612.

Thus, when the child car seat is in a reverse use state, the seat body 2000 has a first direction and a second direction opposite to each other when rotating around the rotation center line X, the first direction is specifically a clockwise direction, and the second direction is a counterclockwise direction. Referring to fig. 37 and 38, in the reverse use state and with the seat 2200 in the second angular position, the first base block 611 is located on the rotation path of the first seat block 621 when the seat body 2000 is rotated clockwise; when the seat body 2000 is rotated counterclockwise, the second base blocker 612 is positioned on a rotation path of the second seat blocker 622.

Further, as shown in fig. 32 to 36, in order to achieve effective blocking, a first fixing holder 661 is fixed to the seat 2200, the first seat blocking member 621 is rotatably connected to the first fixing holder 661 by a first shaft 631, and an axial line Q of the first shaft extends obliquely forward from bottom to top in a height direction of the seat 2200. The first seat stopper 621 has a triangular cross section along the axis Q perpendicular to the first axis, and the first stopper surface 621a is a flat surface, and in a radial direction perpendicular to the rotation center line X, the first stopper surface 621a extends obliquely toward the first base stopper 611 from the inside to the outside in the radial direction in the reverse use state. The blocking mechanism further comprises a first blocking elastic member, here embodied as a first torsion spring 651, for providing the force required for the movement of the first seat blocking member 621 towards the first base blocking member 611, the first torsion spring 651 being wound around a first shaft 631, one end of the first torsion spring 651 abutting against the first seat blocking member 621 and the other end abutting against the first fixed seat 661.

Thus, when the seat 2200 is at the second angular position in the reverse use state and the seat body 2000 rotates clockwise, the lower end of the first blocking surface 621a first contacts the first base blocking member 611, the seat body 2000 continues to rotate clockwise, the first base blocking member 611 pushes the first base blocking member 621 to rotate around the axis Q of the first shaft, the contact area between the first blocking surface 621a and the first base blocking member 611 is gradually increased in the process, the blocking effect of the first base blocking member 611 on the first seat blocking member 621 is further enhanced until the first seat blocking member 621 abuts against the other side wall of the first fixing seat 661, at this time, the first seat blocking member 621 cannot rotate continuously, and the first base blocking member 611 forms a stable blocking effect on the first seat blocking member 621.

Similarly, the second seat stopper 622 is rotatably connected to the second fixing base 662 by a second shaft 632, the axis R of which extends obliquely forward in the up-down direction, and the second shaft 632 is provided with a second torsion spring 652. The operation of the second seat blocker 622 is similar to that of the first seat blocker 621 when the seat body 2000 rotates counterclockwise, and thus, the detailed description thereof will be omitted.

In conclusion, the child car safety seat has the forward using state and the reverse using state, the pitch angle can be adjusted in the reverse using state, the practicability is high, and the adjusting operation is convenient and fast; the base 1000 is also provided with an indicating device capable of indicating the locking state of the locking mechanism, so that the safety is high; through setting up stop gear and stop gear, further improved children's car safety seat's stability and security.

The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims

1. A child car safety seat, includes base and seat body, the seat body can set up on the base around the rotation center line with rotating, child car safety seat have orientation of seat body with the consistent forward user state of car driving direction and the orientation of seat body with the reverse user state of car driving direction opposite, its characterized in that: the child car seat further comprising a locking mechanism for locking the child car seat in the forward use condition or the reverse use condition, and an unlocking mechanism for unlocking the locking mechanism,

the locking mechanism is arranged between the base and the seat body, and the locking mechanism is provided with two locking positions on the base, wherein the two locking positions are arranged at intervals along the circumferential direction of the base;

the unlocking mechanism at least comprises two groups of operating pieces, the two groups of operating pieces are respectively arranged on two different sides of the seat body in the width direction, and the locking mechanism can be unlocked at two locking positions by operating any one group of operating pieces;

the locking mechanism comprises a locking piece and a fitting piece which are mutually matched, the locking piece comprises a first locking piece and a second locking piece which are respectively and movably arranged on the seat body, the fitting piece comprises a first fitting piece and a second fitting piece which are arranged on the base, the first locking piece and the second locking piece are arranged along the circumferential direction of the seat body at an interval of 180 degrees, the first fitting piece and the second fitting piece are arranged along the circumferential direction of the base at an interval of 180 degrees,

when the child car safety seat is in a forward use state, the first locking piece is matched and locked with the first matching piece, and the second locking piece is matched and locked with the second matching piece;

when the child car safety seat is in a reverse use state, the first locking piece is matched and locked with the second matching piece, and the second locking piece is matched and locked with the first matching piece;

the locking mechanism further comprises a first locking elastic element for providing acting force required by the first locking element to move towards the first mating element or the second mating element, and a second locking elastic element for providing acting force required by the second locking element to move towards the first mating element or the second mating element;

the seat comprises a seat body, a first locking piece and a second locking piece, wherein the seat body is provided with a seat cushion, the first locking piece and the second locking piece are arranged on the seat body in a sliding mode, two groups of operating pieces are arranged on the seat body in a sliding mode, each operating piece is connected with a first traction cable and a second traction cable, one end of the first traction cable is connected with the operating piece, the other end of the first traction cable is connected with the first locking piece, one end of the second traction cable is connected with the operating piece, and the other end of the second traction cable is connected with the second locking piece.

2. The child car safety seat according to claim 1, wherein: the two locking positions are respectively arranged on the front side and the rear side of the base.

3. The child car safety seat according to claim 1, wherein: the seat body comprises an installation seat and a seat, the seat can be arranged on the installation seat in a relatively sliding mode, the first locking piece and the second locking piece are arranged on the installation seat in a sliding mode, and the first locking piece and the second locking piece are respectively arranged at the front end portion and the rear end portion of the installation seat.

4. The child car safety seat according to claim 1, wherein: the base is provided with a circular guide rail, the first locking piece and the second locking piece can both slide relatively along the guide rail and are arranged on the guide rail, and the first matching piece and the second matching piece are respectively arranged on the front side and the rear side of the guide rail.

5. The child car safety seat according to claim 1, wherein: the seat body is detachably arranged on the base, a quick-release structure is arranged between the seat body and the base and comprises a first quick-release structure arranged on the base and a second quick-release structure arranged on the seat body, and when the first quick-release structure is matched and connected with the second quick-release structure, the seat body can rotate around the center line relative to the base.

6. The child car safety seat according to claim 5, wherein: the utility model discloses a children's car safety seat, including base, first quick detach structure, spacing groove, central shaft, second quick detach structure, first quick detach structure is provided with the central shaft, the central shaft is last to set firmly, the axial lead of central shaft does center of rotation line, first quick detach structure for set firmly in spacing arch on the central shaft, spacing arch certainly the central shaft is along the perpendicular to center of rotation line's direction is outwards extended, second quick detach structure is for offering in the spacing groove of base bottom, the spacing groove is including supplying center pin cooperation male center groove, can supply spacing protruding cooperation male extension groove, center groove with the extension groove communicates, children's car safety seat is in the forward user state or under the reverse user state, the extension groove with spacing bellied extending direction is skew.

7. A child car safety seat according to any one of claims 1 to 6, wherein: the seat body includes mount pad and seat, the seat can set up with relatively sliding on the mount pad, the seat is relative the slip extending direction when the mount pad slides is the ascending pitch arc of opening, the seat is in have a plurality of operating gears on the mount pad, the seat with be equipped with between the mount pad and be used for with the seat locks the angle locking mechanical system under a plurality of operating gears.

8. The child car safety seat according to claim 7, wherein: the child car safety seat further comprises a limiting mechanism for limiting the seat and the mounting seat to slide relatively under a forward use state, the limiting mechanism comprises a supporting limiting part arranged on the base and a seat limiting part arranged on the seat, and the supporting limiting part is matched and connected with the seat limiting part under the forward use state of the child car safety seat; when the child car safety seat is in a reverse use state, the supporting limiting part is disengaged from the seat limiting part.