CN114789682A

CN114789682A - Seat rotating mechanism and child safety seat

Info

Publication number: CN114789682A
Application number: CN202110100857.0A
Authority: CN
Inventors: 张大亮
Original assignee: Baoju Switzerland Co ltd
Current assignee: Baoju Switzerland Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-07-26

Abstract

The invention discloses a seat rotating mechanism and a child safety seat, wherein the seat rotating mechanism comprises a base, a rotating platform, a locking hole, a locking piece and a driving mechanism; the rotating platform is arranged on the base and can horizontally rotate relative to the base, the rotating platform comprises a front surface and a bottom surface, and the front surface is used for mounting the seat body; the locking hole is arranged on the bottom surface and is away from the rotating center of the rotating table, the locking piece is matched with the locking hole and arranged in the base, and the rotating table is positioned through the matching of the locking piece and the locking hole; the driving mechanism is used for driving the locking piece to withdraw from the locking hole; when the seat rotating mechanism with the structure is installed on the child safety seat, the seat rotating mechanism can be used as a forward seat and a backward seat, and the seat body can be adjusted to the forward position when a child is placed on the seat rotating mechanism and then adjusted to the backward position after the child is placed on the seat rotating mechanism.

Description

Seat rotating mechanism and child safety seat

Technical Field

The invention relates to the technical field of safety seats, in particular to a seat rotating mechanism convenient to use and a child safety seat with the seat rotating mechanism.

Background

The child safety seat for a car, also called a child Restraint system crs (child Restraint system), is a seat designed for children of different ages (or weights), installed in a car, and capable of effectively improving the riding safety of children. The definition of a child safety seat by the european regulation ECE R44/03 is: child safety system capable of being fixed to a motor vehicle, consisting of a safety belt assembly or flexible element with snap, an adjustment mechanism, accessories, etc. Can be combined with additional devices such as portable child beds, infant carriers, booster seats or crash shields. In the case of collision or sudden deceleration of the automobile, the impact force on the children is relieved, the body movement of the children is limited to reduce the injury to the children, and the riding safety of the children is ensured.

According to putting the direction, car children safety seat divide into: 1) horizontal, hand-held cribs (baby carriers) of this type, which are intended for babies less than 1 year old, lie flat when in use; 2) the child seat is backward-oriented, the child seat faces the rear of the vehicle, the child tends to lie aslant when the child seat is used, and the child seat is provided with a multi-point safety belt, and most products are suitable for children aged 1-3 years; 3) the forward type, the direction that children take faces the front of the vehicle, and children normally sit when using, generally use with adult's safety belt combination, most products are applicable to the children more than 3 years old.

The quality of the existing child safety seat can be used for many years generally, when the child ages to 3 years, the backward type safety seat is not damaged, and the forward type safety seat is replaced, so that the problem is caused. In addition, there is some inconvenience in placing a child in the backward type child safety seat, and at this time, if the safety seat can be temporarily changed to the forward position, great convenience in use is brought.

Disclosure of Invention

The invention aims to provide a seat rotating mechanism which can change the placing direction of the seat according to the requirement.

Another object of the present invention is to provide a child safety seat that can be switched in the direction of the seat as desired.

In order to achieve the purpose, the invention discloses a seat rotating mechanism, which comprises a base, a rotating platform, a locking hole, a locking piece and a driving mechanism, wherein the base is provided with a base seat; the base is configured to provide a support carrier; the rotating platform is arranged on the base and can horizontally rotate relative to the base, the rotating platform comprises a front surface and a bottom surface, and the front surface is used for mounting the seat body; the locking hole is arranged on the bottom surface of the rotating platform and deviates from the rotating center of the rotating platform; the locking piece is matched with the locking hole, is arranged in the base and is used for rotationally positioning the rotating platform through the matching of the locking piece and the locking hole; the driving mechanism is used for driving the locking piece to withdraw from the locking hole, so that the rotating platform is in a free rotating state.

Compared with the prior art, the seat rotating mechanism is characterized in that the base is provided with the rotating platform which horizontally rotates, the front surface of the rotating platform is provided with the seat body, and the rotating platform is fixed at a certain position by utilizing the matching of the locking piece and the locking hole; when the orientation of the seat needs to be adjusted, the driving mechanism is operated to push the locking piece out of the locking hole, at the moment, the rotating platform is in a free rotating state, after the rotating platform is rotated to a certain angle, the locking piece at the position enters the locking hole, the rotating platform is locked again, the rotating platform is positioned again, and the seat body is arranged on the rotating platform, so that the rotating platform simultaneously drives the seat body to rotate in the rotating process, and the aim of adjusting the orientation of the seat body is fulfilled; therefore, when the seat rotating mechanism with the structure is installed on the automobile seat, the seat rotating mechanism can be used as a forward seat and a backward seat, and the seat body can be adjusted to the forward position when a child is placed on the seat body and then adjusted to the backward position after the child is placed on the seat body.

Preferably, the seat rotating mechanism further includes a first elastic member, one end of the first elastic member abuts against the locking member, and the other end of the first elastic member abuts against the base.

Preferably, an accommodating space is provided between the front surface and the bottom surface of the rotating table, and the driving mechanism is disposed in the accommodating space.

Preferably, a locking piece is arranged in the base, at least two locking holes are arranged in the base, and the two locking holes are positioned on the same rotation track of the sweeping locking piece.

Preferably, the at least two locking holes are arranged in a central symmetry with respect to the center of the rotating table.

Preferably, the driving mechanism includes at least two first pushing mechanisms respectively disposed at each locking hole, each first pushing mechanism includes a first pushing member and a first driving member for driving the first pushing member to move downward, and the first driving member is configured to drive the first pushing member to move downward so as to push the locking member out of the locking hole.

Preferably, each first pushing mechanism further comprises a fixed seat, the fixed seat is a cylindrical structure with openings at the upper end and the lower end, and the first pushing piece is arranged in the fixed seat and can move up and down in the fixed seat;

the first pushing piece is provided with a limiting shaft on two opposite side walls, the fixing base is provided with a sliding groove for the limiting shaft to slide up and down, and the first driving piece drives the limiting shaft to slide along the sliding groove.

Preferably, the first driving member is two support arms disposed on two sides of the fixing base, the extending direction of the length of the two support arms is perpendicular to the sliding groove, the two support arms are provided with limit grooves extending in an up-down inclined manner, two limit shafts on the first pushing member are respectively supported in the two limit grooves and can slide along the limit grooves, and the limit grooves drive the first pushing member to move downwards through the forward movement of the two support arms.

Preferably, the seat rotating mechanism further comprises a release pull handle and at least two pulling pieces respectively connected with the at least two first pushing mechanisms, one end of each pulling piece is connected with the release pull handle, and the other end is connected with two supporting arms in one first pushing mechanism; when the release pull handle is pulled, the traction piece pulls the supporting arms in the two first pushing mechanisms to translate. So as to drive the first pushing member to move downwards.

Preferably, the front ends of the two support arms in each first pushing mechanism are connected through a first connecting arm, and the pulling member is connected to the first connecting arm.

Preferably, the rear ends of the two support arms in each first pushing mechanism are connected through a second connecting arm, and a second elastic element for automatically resetting the support arms is arranged between the second connecting arm and the fixed seat.

Preferably, each first pushing mechanism further comprises a wire slot disposed right in front of the first connecting arm, the pulling member is connected to the first connecting arm through the wire slot, and the wire slot is used for limiting the pulling member located between the wire slot and the first connecting arm to be a straight line.

Preferably, there are two release handles, and two pulling members are connected in parallel to the first connecting arm in each first pushing mechanism, and the two pulling members are respectively connected to the two release handles.

Preferably, the two unlocking handles are respectively arranged on two opposite sides of the front surface of the rotating platform.

Preferably, at least two locking pieces are arranged in the base, one locking hole is formed in the base, and the two locking pieces are both located on a rotation track swept by the locking hole.

Preferably, the at least two locking members are arranged in a central symmetry with respect to the center of the base.

Preferably, the driving mechanism includes a second pushing mechanism disposed above the locking hole, the second pushing mechanism includes a second pushing member and a second driving member, and the second driving member is used for driving the second pushing member to move downwards so as to push the locking member out of the locking hole.

Preferably, the second driving member is a lever member, the lever member includes a first end and a second end, the first end and the second end can move up and down oppositely relative to a pivot shaft, and the second end is connected with the second pushing member.

Preferably, the driving mechanism further comprises a release member mounted on an outer side wall of the rotating table, the release member being connected to the first end of the lever member.

The invention also discloses a child safety seat which comprises a seat body and the seat rotating mechanism used for installing the seat body.

Preferably, the seat body is provided with a leg rest, the leg rest is connected to the seat body through a pivot structure, so that the leg rest can rotate between a first position and a second position, the first position is a fully opened state where the leg rest is located above, the second position is a fully folded state where the leg rest is located below, and a connection between the leg rest and the seat body is provided with an elastic driving member, and the elastic driving member provides elastic driving force for the leg rest to rotate in a constant direction at the first position.

Drawings

Fig. 1 is a schematic perspective view of a seat rotation mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the base in fig. 1.

Fig. 3 is an enlarged view of a point a in fig. 2.

Fig. 4 is a schematic front view of the rotary table of fig. 1.

Fig. 5 is a schematic bottom view of the rotary table of fig. 1.

Fig. 6 is a schematic view showing an internal structure of the receiving space in the rotary table of fig. 1, in which the pulling member is not installed.

Fig. 7 is an enlarged view of fig. 6 at B.

Fig. 8 is a cross-sectional view taken along the direction of fig. 1C-C.

Fig. 9 is an enlarged view of fig. 8D.

Fig. 10 shows a schematic view of the inner structure of the receiving space in the turntable of fig. 1, in which the pulling member is installed.

Fig. 11 is a schematic perspective view of a seat rotation mechanism according to another embodiment of the present invention.

Fig. 12 is an enlarged view of the rotary table of fig. 11.

Fig. 13 is a schematic diagram showing the internal structure of one embodiment of the base in fig. 11.

Fig. 14 is a schematic view showing the structure of the bottom surface of the rotary table of fig. 11.

Fig. 15 is a schematic view showing a structure in which the inner space of the turntable of fig. 11 is connected to the base.

Fig. 16 is an enlarged schematic view of fig. 15 at E.

Fig. 17 is a cross-sectional view taken along the direction F-F in fig. 11.

Fig. 18 is a schematic view showing the internal structure of another embodiment of the base in fig. 11.

Fig. 19 is a perspective view of a child safety seat according to an embodiment of the present invention, in which the seat body faces the front side.

Fig. 20 is a perspective view of a child safety seat in an embodiment of the invention, with the seat body facing rearward.

Fig. 21 is a perspective view of a child safety seat according to an embodiment of the present invention, in which the seat body faces to the left or right.

Fig. 22 is an exploded view of the seat body in the embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, implementation principles, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments.

As shown in fig. 1 to 5, 11, 13 and 19, the present invention discloses a child safety seat, which is generally used for a car, but not limited thereto. This children's safety seat includes the seat body 80 of direct and child's health contact and the seat rotary mechanism who is used for installing seat body 80, this seat rotary mechanism includes base 1 and revolving stage 2, base 1 is a support carrier, be used for installing revolving stage 2, revolving stage 2 can go up the level rotation in base 1, revolving stage 2 includes front 20 and bottom surface 21, front 20 is the one side of revolving stage 2 upwards towards seat body 80 promptly, bottom surface 21 is the one side of revolving stage 2 downwards towards base 1 promptly, seat body 80 installs the front 20 at revolving stage 2, drive seat body 80 through rotating revolving stage 2 and rotate, thereby place seat body 80 towards different use angles. In order to lock and unlock the turntable 2, a locking hole 210 is formed in the bottom surface 21 of the turntable 2, and a locking member 10 adapted to the locking hole 210 is provided in the base 1. When the turntable 2 is rotated such that the locking hole 210 is aligned with the locking member 10, the locking member 10 enters the locking hole 210, and the rotation of the turntable 2 is restricted. When the turntable 2 is to be rotated, the lock member 10 is pushed out of the lock hole 210, and the lock of the turntable 2 by the lock member 10 is released. In addition, the seat rotation mechanism in this embodiment further includes a driving mechanism, by which the locking member 10 is driven to exit from the locking hole 210. Preferably, an accommodating space 22 is disposed between the front surface 20 and the bottom surface 21 of the rotating platform 2, and the driving mechanism is disposed in the accommodating space 22. Because the driving mechanism is disposed in the accommodating space 22 of the rotating platform 2, when the rotating platform 2 rotates, the driving mechanism rotates along with the rotating platform 2, so as to facilitate the operation of the driving mechanism, and the driving mechanism is beautiful and not easy to be damaged.

For the locking structure between the rotating platform 2 and the base 1, the invention specifically discloses the following two embodiments, embodiment 1: as shown in fig. 2 and 5, a locking member 10 is disposed in the base 1, and at least two locking holes 210 are disposed on the turntable 2, wherein the two locking holes 210 are located on the same rotation track sweeping through the locking member 10, that is, as the turntable 2 rotates, the two locking holes 210 are respectively in locking connection with the locking member 10 in the base 1.

Example 2: as shown in fig. 13 and 14, at least two locking members 10 are disposed in the base 1, a locking hole 210 is disposed on the turntable 2, and the at least two locking members 10 are located on a rotation track swept by the locking hole 210, that is, as the turntable 2 rotates, the locking hole 210 on the turntable 2 is respectively connected with the at least two locking members 10 in a locking manner. Preferably, as shown in fig. 18, four locking members 10 are further disposed at intervals in the base 1, the four locking members 10 are respectively located at four positions of the front, the back, the left and the right of the base 1, and as the turntable 2 rotates, the locking holes 210 on the turntable 2 can be respectively in locking connection with the locking members 10 in four directions, so that the seat body 80 on the turntable 2 respectively faces different directions, i.e. toward the front (as shown in fig. 19), toward the back (as shown in fig. 20) and toward the side (as shown in fig. 21).

In the

above embodiments

1 and 2, after the rotating platform 2 rotates to the proper position, in order to ensure the locking member 10 to automatically and quickly return, please refer to fig. 9 and 17, a first elastic member 11 is further disposed at the bottom end of the locking member 10, in this embodiment, the first elastic member 11 is a spring, one end of the spring abuts against the bottom wall of the locking member 10, and the other end of the spring abuts against the base 1. Thus, when the locking hole 210 is butted against the locking piece 10, the locking piece 10 is automatically entered into the locking hole 210 by the elastic restoring force of the spring, and the positioning of the rotating table 2 is completed.

Two embodiments of the locking structure are described in detail below. Embodiment 1 regarding the above-described locking structure:

normally, the locking member 10 is located in one of the locking holes 210 to fix the rotating platform 2 on the base 1, when the seat orientation needs to be adjusted, the driving mechanism is operated to withdraw the locking member 10 from the locking hole 210, and then the rotating platform 2 is rotated, since the two locking holes 210 are located on the same rotation track sweeping over the locking member 10, in this embodiment, the two locking holes 210 are located on the same concentric circle, when the rotating platform 2 is rotated to a position where the other locking hole 210 corresponds to the locking member 10, the driving mechanism is operated to release the control of the locking member 10, and the locking member 10 enters the locking hole 210 at the position of the rotating platform 2, so as to position the rotating platform 2 again. The rotating platform 2 also drives the seat body 80 to rotate during the rotation process, so as to achieve the purpose of adjusting the orientation of the seat. Therefore, when the seat rotating mechanism with the structure is installed on the automobile seat, the seat rotating mechanism can be used as a forward seat and a backward seat, and the seat body 80 can be adjusted to the forward position when a child is placed on the seat body and then adjusted to the backward position after the child is placed on the seat body. Preferably, in this embodiment, the two locking holes 210 are arranged in a central symmetry with respect to the center of the turntable 2, so that the turntable 2 can be positioned again after each 180 ° rotation, thereby completing the switching of the seat body 80 between the forward type and the backward type.

Referring to fig. 6 and 7, in the present embodiment, the locking member 10 is driven by a pushing mechanism, the driving mechanism includes at least two first pushing mechanisms respectively disposed at each locking hole 210, that is, one first pushing mechanism is disposed right above each locking hole 210, in the present embodiment, there are two locking holes 210, and then two first pushing mechanisms are disposed in the accommodating space 22, and when the rotating platform 2 needs to be rotated, the two first pushing mechanisms operate simultaneously. Specifically, each first pushing mechanism includes a first pushing member 30 and a first driving member for driving each first pushing member 30 to move downward, and when the first driving member drives the first pushing member 30 to move downward, the first pushing member 30 pushes the locking member 10 out of the locking hole 210. As shown in fig. 9, the first pushing member 30 is located right above the locking hole 210, when the first driving member drives the first pushing member 30 to move down, the first pushing member 30 enters the locking hole 210, so as to push the locking member 10 located in the locking hole 210 out of the rotating platform, completing lock release, and when the locking member 10 is reset, the first pushing member 30 is pushed out of the locking hole 210, which is simple in structure and sensitive in action.

Further, as shown in fig. 7, in order to prevent the first pushing member 30 from deviating from the locking hole 210 during the operation, each first pushing mechanism further includes a fixing seat 34 fixedly disposed directly above the locking hole 210, the fixing seat 34 is a cylindrical structure having openings at upper and lower ends, the opening at the lower end is communicated with the locking hole 210, and the first pushing member 30 is disposed in the fixing seat 34 and can move up and down in the fixing seat 34. The first pushing member 30 has two opposite side walls provided with a limiting shaft 300, the fixing base 34 is provided with a sliding groove 340 for the limiting shaft 300 to slide up and down, and the first driving member drives the limiting shaft 300 to slide along the sliding groove 340. When the first driving member drives the limiting shaft 300 to move downward, the limiting shaft 300 drives the first pushing member 30 to move downward along the fixing base 34, so as to ensure that the first pushing member 30 does not deviate from the direction of the locking hole 210.

Referring to fig. 7 again, the first driving member is two supporting arms 31 disposed on two sides of each fixing base 34, the extending direction of the length of the two supporting arms 31 is perpendicular to the sliding groove 340, in the figure, the sliding groove 340 extends in a vertical direction, the supporting arms extend in a horizontal direction perpendicular to the sliding groove 340, the two supporting arms 31 are both provided with a limiting groove 310 extending in an up-and-down inclined manner, the two limiting shafts 300 on the first pushing member 30 are respectively supported in the two limiting grooves 310 and can slide along the limiting grooves 310, and the limiting grooves 310 drive the first pushing member 30 to move down by the forward movement of the two supporting arms 31. When the two support arms 31 move forward synchronously, the limiting groove 310 moves forward to drive the limiting shaft 300 to slide from the higher position to the lower position of the limiting groove 310, so that the first pushing member 30 moves downward.

As shown in fig. 10, another preferred embodiment of the seat rotation mechanism of the invention further includes a release handle 6 and at least two pulling members 5 respectively connected to at least two first pushing mechanisms, i.e. each first pushing mechanism is connected to one pulling member 5, one end of each pulling member 5 is connected to the release handle 6, and the other end is connected to two supporting arms 31 in one first pushing mechanism. When the release handle 6 is pulled, the two pulling members 5 are pulled simultaneously to respectively pull the supporting arms 31 in the two first pushing mechanisms to move forward, in this embodiment, the release handle 6 is equivalent to a release switch, and the pulling member 5 is a power transmission member. When the release handle 6 is pulled, please refer to fig. 7, in order to ensure that the two support arms 31 in each first pushing mechanism move forward synchronously, the front ends of the two support arms 31 in each first pushing mechanism are connected through a first connecting arm 32, and the pulling element 5 is connected to the first connecting arm 32, so that when the pulling element 5 pulls the first connecting arm 32, the two support arms 31 connected therewith are driven to move synchronously. Preferably, in order to increase the power of the first driving member, two release pull handles 6 are provided, and two pulling members 5 are connected in parallel to the first connecting arm 32 in each first pushing mechanism, and the two pulling members 5 are respectively connected to the two release pull handles 6. When the lock is released, the two lock releasing pull handles 6 are simultaneously pulled, and the two pulling pieces 5 connected with the first connecting arm 32 simultaneously generate pulling force to drive the supporting arm 31 to move forwards. For convenience of operation, two release handles 6 are respectively disposed on opposite sides of the front surface 20 of the turntable 2.

If the connection portion of the pulling member 5 and the first connecting arm 32 is inclined to the first connecting arm 32, the pulling force of the pulling member 5 will be lost, and therefore each first pushing mechanism further includes a wire slot 35 disposed right in front of the first connecting arm 32, the pulling member 5 is connected to the first connecting arm 32 through the wire slot 35, and the wire slot 35 is used for limiting the pulling member 5' located between the wire slot 35 and the first connecting arm 32 to be a straight line.

In addition, as shown in fig. 7, although when the release handle 6 is released, the first pushing member 30 can also drive the supporting arm 31 to return under the action of the pushing force of the locking member 10, in order to facilitate the quick return of the supporting arm 31 and reduce the pressure of the first elastic member 11, in this embodiment, the rear ends of the two supporting arms 31 in each first pushing mechanism are connected through a second connecting arm 33, a second elastic member 36 for automatically returning the supporting arm 31 is disposed between the second connecting arm 33 and the fixing base 34, i.e. one end of the second elastic member 36 abuts against the second connecting arm 33, and the other end of the second elastic member 36 abuts against the fixing base 34, so that the supporting arm 31 is quickly returned through the elastic restoring force of the second elastic member 36.

Embodiment 2 regarding the above-described locking structure:

referring to fig. 13 and 14 again, when the turntable 2 is in the locked state, one of the locking members 10 in the base 1 is in the extended state and is located in the locking hole 210 in the turntable 2, and the other locking member 10 is in the compressed state under the bottom surface of the turntable 2. When the seat orientation needs to be adjusted, the driving mechanism is operated to make the locking member 10 entering the locking hole 210 withdraw from the locking hole 210, and then the rotating platform 2 is rotated, because both the locking members 10 are located on the rotation track swept by the locking hole 210 during the rotation process, when the rotating platform 2 rotates to the locking hole 210 and above the other locking member 10, the locking member 10 enters the locking hole 210, and the locking of the rotating platform 2 is completed again, so as to achieve the purpose of adjusting the seat orientation. Preferably, in this embodiment, two locking members 10 are arranged in a central symmetrical manner with respect to the center of the base 1, so that the rotating table 2 can be positioned again after each 180 ° rotation, thereby completing the switching of the seat body 80 between the forward direction and the backward direction.

As shown in fig. 15 to 17, the driving mechanism includes a second pushing mechanism disposed above the locking hole 210, and the second pushing mechanism includes a second pushing member 70 and a second driving member, and the second driving member is used for driving the second pushing member 70 to move downward so as to push the locking member 10 out of the locking hole 210. When the seat orientation needs to be adjusted, the second pushing member 70 is moved downward by operating the second driving member, so as to push the locking member 10 out of the locking hole 210, and when the rotary table 2 is rotated, the second pushing mechanism rotates to another locking member 10 along with the rotary table 2. In this embodiment, the second driving member is a lever member 71, that is, the lever member 71 prys the second pushing member 70 to move downward by a lever action, specifically, the lever member 71 includes a first end 710 and a second end 711, the lever member 71 is installed in the rotating platform 2 through a pivot 712 disposed between the first end 710 and the second end 711, the first end 710 and the second end 711 can move in opposite directions up and down relative to the pivot 712, the second end 711 is connected to the second pushing member 70, and when the first end 710 of the lever member 71 is operated, the second end 711 drives the second pushing member 70 to move downward to push the locking member 10 out of the locking hole 210.

For the convenience of operation, in the embodiment, the driving mechanism further includes a release member 72 mounted on the outer side wall of the rotating platform 2, and as shown in fig. 11, 12 and 16, the release member 72 is connected to the first end 710 of the lever member 71. When the rotating platform 2 needs to be rotated, the releasing element 72 is pulled upwards, so that the first end 710 of the lever 71 tilts upwards, and the second end 711 of the lever 71 moves downwards, so that the second pushing element 70 moves downwards, and the releasing operation of the locking element 10 is completed. Preferably, a third elastic member 720 is further installed above the release member 72, and the third elastic member 720 is used to realize the automatic reset of the release member 72. Further, the lower end of the second pushing member 70 is further sleeved with a fourth elastic member 700, and the elastic restoring force of the fourth elastic member 700 directly acts on the second pushing member 70 to better push the second pushing member 70 and the release member 72 to automatically return.

In addition, as shown in fig. 19 to 22, the seat body 80 is provided with a leg rest 81, the leg rest 81 is connected to the seat body 80 through a pivot structure, so that the leg rest 81 can rotate between a first position P1 and a second position P2, the first position P1 is a fully opened state where the leg rest 81 is located above, the second position P2 is a fully closed state where the leg rest 81 is located below, and a connection between the leg rest 81 and the seat body 80 is provided with an elastic driving member, and the elastic driving member provides an elastic driving force for the leg rest 81 to rotate towards the first position P1 constantly. In this embodiment, the leg rest 81 is provided to effectively improve the comfort of the child safety seat, and when a child is placed in the seat body 80, the lower leg of the child can extend forward to be placed on the leg rest 81. Due to the pivotal connection between the leg rest 81 and the seat body 80, the leg rest 81 can rotate in the direction F (see fig. 19), so that the leg rest 81 can rotate between the first position P1 and the second position P2, and the leg rest 81 can be rotationally adjusted to be in a fully opened state, a fully folded state or a semi-folded state between the fully opened state and the fully folded state according to the current use environment. The resilient drive members provide a constant driving force to the leg rest 81 towards the first position P1 and also provide a resilient support for the legs of the child. Through the arrangement of the leg rest frame 81 with the structure, when the leg rest frame 81 influences the closing of the vehicle door, the elastic force of the elastic driving part can be overcome, and the leg rest frame 81 can be pressed downwards, so that the leg rest frame 81 is in a folding or semi-folding state, after the vehicle door is closed, the leg rest frame 81 can tightly abut against the inner side of the vehicle door under the elastic restoring force of the elastic driving part, and therefore the leg rest frame 81 can be effectively prevented from influencing the closing of the vehicle door. The elastic driving member in this embodiment is preferably a spring 82 or a torsion spring, and the specific installation manner of the spring 82 or the torsion spring is common knowledge of those skilled in the art and will not be described herein.

To sum up, the child safety seat disclosed by the invention has the advantages that the seat body 80 is arranged on the rotating platform 2, the bottom surface 21 of the rotating platform 2 is provided with the locking hole 210, the base 1 is provided with the locking piece 10, and the rotating platform 2 can drive the seat body 80 to rotate 180 degrees and be positioned again through the matching of the locking piece 10 and the locking hole 210, so that the seat body 80 can be switched between the forward position and the backward position. When the orientation of the seat body 80 needs to be adjusted, the two unlocking pull handles 6 or the unlocking parts 72 on the front surface 20 of the rotating platform 2 are pulled to drive the first pushing part 30 or the second pushing part 70 to push the locking part 10 downwards, so that the locking part 10 is separated from the locking hole 210 on the back surface of the rotating platform 2, and then the rotating platform 2 can be rotated, after the rotating platform is rotated by 180 degrees, the locking part 10 can be clamped into the locking hole 210 again under the action of the return spring of the locking part 10, and the rotating platform 2 can be repositioned after being rotated. Therefore, the child safety seat has the advantages of being simple in structure and convenient to operate.

The above disclosure is only for the preferred embodiment of the present invention, and it should be understood that the scope of the present invention is not limited thereto, and therefore, the equivalent changes made in the claims of the present invention are included in the scope of the present invention.

Claims

1. A seat swivel mechanism, comprising:

a base providing a support carrier;

the rotating platform is arranged on the base and can horizontally rotate relative to the base, the rotating platform comprises a front surface and a bottom surface, and the front surface is used for installing a seat body;

a locking hole provided on a bottom surface of the turntable, the locking hole being offset from a rotation center of the turntable;

the locking piece is matched with the locking hole, is arranged in the base and is matched with the locking hole to rotationally position the rotating platform;

and the driving mechanism is used for driving the locking piece to withdraw from the locking hole so as to enable the rotating platform to be in a free rotating state.

2. The seat swivel mechanism of claim 1, further comprising a first resilient member having one end abutting the locking member and another end abutting the base.

3. The seat rotation mechanism according to claim 1, wherein an accommodation space is provided between a front surface and a bottom surface of the rotating table, and the drive mechanism is disposed in the accommodation space.

4. The seat swivel mechanism of claim 3, wherein one locking member is disposed in the base, and wherein there are at least two locking holes, and wherein the two locking holes are located on the same rotation track sweeping across the locking member.

5. The seat swivel mechanism of claim 4, wherein at least two of the locking holes are arranged in central symmetry with respect to a center of the swivel table.

6. The seat rotation mechanism of claim 4, wherein the driving mechanism includes at least two first pushing mechanisms respectively disposed at each of the locking holes, each of the first pushing mechanisms includes a first pushing member and a first driving member for driving the first pushing member to move downward, and the first driving member is configured to drive the first pushing member to move downward to push the locking member out of the locking hole.

7. The seat rotation mechanism according to claim 6, wherein each of the first pushing mechanisms further comprises a fixed seat, the fixed seat is a cylindrical structure having openings at upper and lower ends thereof, and the first pushing member is disposed in the fixed seat and can move up and down in the fixed seat;

8. The seat rotation mechanism according to claim 7, wherein the first driving member is two supporting arms disposed on two sides of the fixing base, the length of the two supporting arms extends in a direction perpendicular to the sliding groove, each of the two supporting arms is provided with a limiting groove extending obliquely upward and downward, two limiting shafts on the first pushing member are respectively supported in the two limiting grooves and can slide along the limiting grooves, and the limiting grooves drive the first pushing member to move downward by the forward movement of the two supporting arms.

9. The seat swivel mechanism of claim 8, further comprising a release handle and at least two pull members connected to at least two of the first thrusting mechanisms, respectively, wherein one end of each pull member is connected to the release handle and the other end is connected to two support arms in one of the first thrusting mechanisms; when the unlocking pull handle is pulled, the pulling piece pulls the supporting arms in the two first pushing mechanisms to translate so as to drive the first pushing pieces to move downwards.

10. The seat reclining mechanism of claim 9, wherein the front ends of the two support arms in each of the first thrusting mechanisms are connected by a first connecting arm, and the pulling member is connected to the first connecting arm.

11. The seat rotation mechanism of claim 9, wherein the rear ends of the two support arms in each first pushing mechanism are connected through a second connecting arm, and a second elastic element for automatically resetting the support arms is disposed between the second connecting arm and the fixing seat.

12. The seat swivel mechanism of claim 10, wherein each first pushing mechanism further comprises a wire slot disposed directly in front of the first connecting arm, the pulling member is connected to the first connecting arm via the wire slot, and the wire slot is configured to limit the pulling member between the wire slot and the first connecting arm to a straight line.

13. The seat swivel mechanism of claim 10, wherein there are two release levers, and two of the pull members are connected in parallel to the first connecting arm in each of the first thrusters, and are connected to the two release levers respectively.

14. The seat swivel mechanism of claim 13, wherein two release handles are disposed on opposite sides of a front surface of the swivel plate.

15. The seat swivel mechanism of claim 3, wherein at least two locking members are disposed within the base, wherein there is one locking hole, and wherein both locking members are located on a rotation track swept by the locking hole.

16. The seat swivel mechanism of claim 15, wherein at least two of the locking members are arranged in central symmetry with respect to the center of the base.

17. The seat rotation mechanism of claim 15, wherein the driving mechanism comprises a second pushing mechanism disposed above the locking hole, the second pushing mechanism comprises a second pushing member and a second driving member, and the second driving member is configured to drive the second pushing member to move downward to push the locking member out of the locking hole.

18. The seat swivel mechanism of claim 17, wherein the second driving member is a lever member, the lever member including a first end and a second end, the first end and the second end being movable in opposite directions up and down relative to a pivot axis, the second end being connected to the second pushing member.

19. The seat swivel mechanism of claim 18, wherein the drive mechanism further comprises a release member mounted on an outer side wall of the swivel table, the release member being connected to the first end of the lever member.

20. A child safety seat comprising a seat body and a seat swivel mechanism according to any of claims 1 to 19 for mounting the seat body.

21. The child safety seat according to claim 20, wherein the seat body is provided with a leg rest, the leg rest is connected to the seat body through a pivot structure such that the leg rest can rotate between a first position and a second position, the first position is a fully opened state where the leg rest is located above, the second position is a fully closed state where the leg rest is located below, and a connection between the leg rest and the seat body is provided with an elastic driving member, and the elastic driving member provides an elastic driving force for the leg rest to rotate constantly towards the first position.