CN114789682B

CN114789682B - Seat rotating mechanism and child safety seat

Info

Publication number: CN114789682B
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: 2024-07-30
Anticipated expiration: 2041-01-25
Also published as: CN114789682A

Abstract

The invention discloses a seat rotating mechanism and a child safety seat, wherein the seat rotating mechanism comprises a base, a rotary table, a locking hole, a locking piece and a driving mechanism; the rotary table is arranged on the base and can horizontally rotate relative to the base, and comprises a front surface and a bottom surface, wherein the front surface is used for installing the seat body; the locking hole is arranged on the bottom surface and is away from the rotation center of the rotary table, the locking piece is matched with the locking hole and is arranged in the base, and the rotary 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 arranged on the child safety seat, the child safety seat 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, and then adjusted to the backward position after the child is placed.

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 automobile child safety seat is also called a child restraint system CRS (Child Restraint System), and is a seat which is specially designed for children of different ages (or weights), is installed in an automobile and can effectively improve the riding safety of the children. The European regulations ECE R44/03 define a child safety seat as follows: a child safety protection system that can be secured to a motor vehicle, consisting of a harness assembly or flexible member with a buckle, an adjustment mechanism, an accessory, etc. Can be combined with additional devices such as portable child's bed, infant carrier, auxiliary seat or crash shield. In the event of a collision or sudden deceleration of the vehicle, the impact force on the child is slowed down and the body movement of the child is restricted to reduce injury to the child and ensure the riding safety of the child.

According to the direction of putting, automobile children safety seat falls into: 1) Horizontal, hand-held cribs (infant carrier) are of this type, in which the infant lies flat when in use, suitable for infants within 1 year of age; 2) The backward direction, the riding direction of the children is towards the rear of the vehicle, the children often lie obliquely when in use, the multi-point safety belt is provided, and most products are suitable for children aged 1-3; 3) The forward direction, the direction that children took towards the vehicle forward, and children normally sit when using, generally use with adult's safety belt combination, and most products are applicable to children over 3 years old.

The quality of the existing child safety seat can be used for years, when the child is as old as 3 years, the backward type safety seat is not damaged, and the forward type safety seat is wasteful to replace. In addition, there is some inconvenience in placing a child in the rearward facing child safety seat, which can be greatly convenient to use if the safety seat can be temporarily changed to the forward facing position.

Disclosure of Invention

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

Another object of the present invention is to provide a child safety seat in which the direction of placement of the seat orientation can be changed at any time as desired.

In order to achieve the above object, the present invention discloses a seat rotating mechanism, comprising a base, a rotary table, a locking hole, a locking piece and a driving mechanism; the base is configured to provide a support carrier; the rotary table is arranged on the base and can horizontally rotate relative to the base, and comprises a front surface and a bottom surface, wherein the front surface is used for installing the seat body; the locking hole is arranged on the bottom surface of the rotary table and deviates from the rotation center of the rotary table; the locking piece is matched with the locking hole and is arranged in the base, and the rotary table is positioned in a rotary way 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 rotary table is in a free rotation state.

Compared with the prior art, the seat rotating mechanism is provided with the rotating table which horizontally rotates on the base, the seat body is arranged on the front surface of the rotating table, and the rotating table is fixed at a certain position by utilizing the cooperation of the locking piece and the locking hole; when the orientation of the seat needs to be regulated, the driving mechanism is operated to push the locking piece out of the locking hole, at the moment, the rotating table is in a free rotation state, after the rotating table is rotated to a certain angle, the locking piece at the position enters the locking hole and locks the rotating table again, the rotating table is newly positioned, and the seat body is arranged on the rotating table, so that the rotating table drives the seat body to rotate in the rotation process, and the purpose of regulating the orientation of the seat body is achieved; therefore, when the seat rotating mechanism with the structure is installed on the automobile seat, the automobile seat 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, and then adjusted to the backward position after the child is placed.

Preferably, the seat rotating mechanism further comprises a first elastic piece, one end of the first elastic piece is abutted with the locking piece, and the other end of the first elastic piece is abutted with the base.

Preferably, a containing space is arranged between the front surface and the bottom surface of the rotary table, and the driving mechanism is arranged in the containing space.

Preferably, a locking piece is arranged in the base, at least two locking holes are formed, 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 centrally symmetrically with respect to the center of the turntable.

Preferably, the driving mechanism comprises at least two first pushing mechanisms respectively arranged at each locking hole, each first pushing mechanism comprises a first pushing piece and a first driving piece for driving the first pushing piece to move downwards, and the first driving piece is used for driving the first pushing piece to move downwards so as to push the locking piece out of the locking hole.

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

Limiting shafts are arranged on two opposite side walls of the first pushing piece, sliding grooves for the limiting shafts to slide up and down are formed in the fixing base, and the first driving piece drives the limiting shafts to slide along the sliding grooves.

Preferably, the first driving part is two supporting arms arranged at two sides of the fixing seat, the extending directions of the lengths of the two supporting arms are perpendicular to the sliding groove, limiting grooves extending obliquely up and down are formed in the two supporting arms, the two limiting shafts on the first pushing part are respectively supported in the two limiting grooves and can slide along the limiting grooves, and the limiting grooves drive the first pushing part to move downwards through forward movement of the two supporting arms.

Preferably, the seat rotating mechanism further comprises a lock release pull handle and at least two traction pieces which are respectively connected with the at least two first pushing mechanisms, one end of each traction piece is connected with the lock release pull handle, and the other end of each traction piece is connected with two supporting arms in one first pushing mechanism; when the lock release 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 piece to move downwards.

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

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

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

Preferably, the number of the lock release pull handles is two, and two traction pieces are connected on the first connecting arm in each first pushing mechanism in parallel and are respectively connected with the two lock release pull handles.

Preferably, the two lock release pull handles are respectively arranged on two opposite sides of the front surface of the rotary table.

Preferably, at least two locking pieces are arranged in the base, one locking hole is formed, and the two locking pieces are positioned on the rotating track swept by the locking holes.

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 comprises a second pushing mechanism arranged above the locking hole, the second pushing mechanism comprises a second pushing piece and a second driving piece, and the second driving piece is used for driving the second pushing piece to move downwards so as to push the locking piece 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 are capable of moving up and down reversely relative to a pivot shaft, and the second end is connected to the second pushing member.

Preferably, the driving mechanism further comprises a release locking member mounted on the outer side wall of the rotary table, and the release locking member is connected with 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 for installing the seat body.

Preferably, the seat body is provided with a leg rest, the leg rest is connected with 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 in which the leg rest is positioned above, the second position is a fully closed state in which the leg rest is positioned below, and an elastic driving member is arranged at the joint of the leg rest and the seat body and provides a constant elastic driving force for the leg rest to rotate toward the first position.

Drawings

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

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

Fig. 3 is an enlarged view at a in fig. 2.

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

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

Fig. 6 shows a schematic view of the inner structure of the accommodation space in the rotary table of fig. 1, in which the drawing member is not installed.

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

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

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

Fig. 10 shows a schematic view of the internal structure of the accommodation space in the rotary table of fig. 1, in which the pulling member is installed.

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

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

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

Fig. 14 shows a schematic view of the bottom surface structure of the turntable of fig. 11.

Fig. 15 shows a schematic structure of the rotary table of fig. 11 in which the inner space is connected to the base.

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

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 of fig. 11.

Fig. 19 is a schematic perspective view of a child safety seat according to an embodiment of the present invention, wherein the seat body is directed toward the front side.

Fig. 20 is a schematic perspective view of a child safety seat according to an embodiment of the present invention, wherein the seat body faces the rear side.

Fig. 21 is a schematic perspective view of a child safety seat according to an embodiment of the present invention, wherein the seat body is directed to the left or right side.

Fig. 22 is an exploded view of a seat body according to an embodiment of the present invention.

Detailed Description

In order to describe the technical content, structural features, implementation principles and achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.

As shown in fig. 1 to 5, 11, 13 and 19, the present invention discloses a child safety seat, which is generally used in an automobile, but is not limited thereto. This child safety seat includes the seat body 80 of direct and child's health contact and is used for installing the seat rotary mechanism of seat body 80, this seat rotary mechanism includes base 1 and revolving stage 2, base 1 is a support carrier for install revolving stage 2, revolving stage 2 can rotate on base 1 level, revolving stage 2 includes positive 20 and bottom surface 21, positive 20 is the one side that revolving stage 2 upwards faces seat body 80 promptly, bottom surface 21 is the one side that revolving stage 2 downwards faces base 1 promptly, seat body 80 installs in the positive 20 of revolving stage 2, drive seat body 80 rotation through rotating revolving stage 2, thereby place seat body 80 towards different use angles. For locking and unlocking the turntable 2, a locking hole 210 is provided in the bottom surface 21 of the turntable 2, and a locking piece 10 adapted to the locking hole 210 is provided in the base 1. When the rotation table 2 is rotated such that the locking hole 210 is aligned with the locking piece 10, the locking piece 10 enters into the locking hole 210, and the rotation of the rotation table 2 is restricted. When the turntable 2 is to be turned, the locking member 10 is pushed out of the locking hole 210, and the locking of the turntable 2 by the locking member 10 is released. In addition, the seat rotating mechanism in the present embodiment further includes a driving mechanism with which the locking member 10 is driven out of the locking hole 210. Preferably, a receiving space 22 is provided between the front surface 20 and the bottom surface 21 of the turntable 2, and the driving mechanism is disposed in the receiving space 22. Because the actuating mechanism sets up in the accommodation space 22 of revolving stage 2, and when revolving stage 2 rotated, actuating mechanism followed revolving stage 2 and rotated together, the convenient operation to actuating mechanism moreover is not only pleasing to the eye but also is difficult to be damaged.

As for the locking structure between the rotary table 2 and the base 1, the present 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, at least two locking holes 210 are disposed on the rotating table 2, and the two locking holes 210 are located on the same rotation track of the sweeping locking member 10, that is, along with the rotation of the rotating table 2, 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 rotary table 2, and at least two locking members 10 are located on a rotation track swept by the locking hole 210, that is, along with rotation of the rotary table 2, the locking hole 210 on the rotary table 2 is respectively connected with at least two locking members 10 in a locking manner. Preferably, as shown in fig. 18, four locking pieces 10 may be further disposed in the base 1 at intervals, and the four locking pieces 10 are disposed in four directions of front, rear, left and right of the base 1, and along with rotation of the turntable 2, the locking holes 210 on the turntable 2 may be respectively locked with the locking pieces 10 in four directions, so that the seat body 80 on the turntable 2 faces in different directions, i.e. faces in the front (fig. 19) and the rear (fig. 20) and faces in the side (fig. 21).

In the above embodiments 1 and 2, in order to ensure that the locking member 10 automatically resets quickly after the turntable 2 rotates in place, referring to fig. 9 and 17, a first elastic member 11 is further disposed at the bottom end of the locking member 10, and in this embodiment, the first elastic member 11 is a spring, one end of the spring is abutted against the bottom wall of the locking member 10, and the other end is abutted against the base 1. Thus, when the locking hole 210 is docked with the locking member 10, the locking member 10 automatically enters the locking hole 210 by the elastic restoring force of the spring, and positioning of the rotating table 2 is completed.

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

In a normal state, the locking member 10 is located in one of the locking holes 210, so that the rotary table 2 is fixed on the base 1, when the seat orientation needs to be adjusted, the driving mechanism is operated to enable the locking member 10 to withdraw from the locking hole 210, and then the rotary table 2 is rotated, since the two locking holes 210 are located on the same rotation track of the sweeping-over locking member 10, in this embodiment, the two locking holes 210 are located on the same concentric circle, when the rotary table 2 is rotated to the 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 into the locking hole 210 at the position of the rotary table 2, so that the rotary table 2 is positioned again. The rotating table 2 drives the seat body 80 to rotate in the rotating 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 automobile seat 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, and then adjusted to the backward position after the child is placed, so that the automobile seat is convenient to use and easy to operate. Preferably, in the present embodiment, the two locking holes 210 are arranged in a central symmetry with respect to the center of the rotation table 2, so that the rotation table 2 can be positioned again after each rotation of 180 ° to complete the switching of the seat body 80 between the forward and backward type.

Referring to fig. 6 and 7 in combination, in the present embodiment, the locking member 10 is driven by pushing, and the driving mechanism includes at least two first pushing mechanisms respectively disposed at each locking hole 210, i.e. one first pushing mechanism is disposed right above each locking hole 210, in the present embodiment, two locking holes 210 are disposed, and then two first pushing mechanisms are disposed in the accommodating space 22, and when the rotary table 2 needs to be rotated, the two first pushing mechanisms act 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 directly above the locking hole 210, when the first driving member drives the first pushing member 30 to move downward, 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, thereby completing releasing the lock, and when the locking member 10 is reset, the first pushing member 30 is pushed out of the locking hole 210, so that the structure is simple and the action is sensitive.

Further, as shown in fig. 7, in order to prevent the first pushing members 30 from shifting the locking holes 210 during operation, each first pushing mechanism further includes a fixing base 34 fixedly disposed directly above the locking holes 210, the fixing base 34 is a cylindrical structure with openings at the upper and lower ends, the openings at the lower ends are communicated with the locking holes 210, and the first pushing members 30 are disposed in the fixing base 34 and can move up and down in the fixing base 34. The two opposite side walls of the first pushing component 30 are provided with limiting shafts 300, the fixing seat 34 is provided with sliding grooves 340 for the limiting shafts 300 to slide up and down, and the first driving component drives the limiting shafts 300 to slide along the sliding grooves 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 seat 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 at two sides of each fixing seat 34, the extending direction of the lengths of the two supporting arms 31 is perpendicular to the sliding groove 340, and the sliding groove 340 extends in the vertical direction in the drawing, so that the supporting arms extend in the horizontal direction perpendicular to the sliding groove 340, two limiting grooves 310 extending obliquely up and down are disposed on the two supporting arms 31, 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 downward through the forward movement of the two supporting arms 31. When the two support arms 31 move forward synchronously, the limiting slot 310 moves forward to drive the limiting shaft 300 to slide from the upper position to the lower position of the limiting slot 310, so that the first pushing member 30 moves downward.

As shown in fig. 10, another preferred embodiment of the seat rotating mechanism of the present invention further comprises a lock release pull 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 lock release pull 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, and the supporting arms 31 in the two first pushing mechanisms are pulled to move forward respectively, in this embodiment, the release handle 6 corresponds to a release switch member, and the pulling member 5 is a power transmission member. When the release handle 6 is pulled, referring 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 by a first connecting arm 32, and the pulling member 5 is connected to the first connecting arm 32, so that when the pulling member 5 pulls the first connecting arm 32, the two support arms 31 connected with the pulling member 5 are driven to move synchronously. Preferably, in order to increase the power of the first driving element, two pulling elements 5 are connected to the first connecting arm 32 in each first pushing mechanism in parallel, and the two pulling elements 5 are respectively connected to the two releasing pulling elements 6. When the lock releasing operation is performed, the two lock releasing pull handles 6 are simultaneously moved, and the two traction pieces 5 connected with the first connecting arm 32 simultaneously generate traction force to drive the supporting arm 31 to move forwards. For convenience of operation, two release handles 6 are provided on opposite sides of the front face 20 of the turntable 2, respectively.

If the connection portion between 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, so each first pushing mechanism further includes a slot 35 disposed right in front of the first connecting arm 32, the pulling member 5 is connected to the first connecting arm 32 via the slot 35, and the slot 35 is used for limiting the pulling member 5' between the slot 35 and the first connecting arm 32 to be in a straight line.

In addition, as shown in fig. 7, although the first pushing member 30 can also drive the support arms 31 to return under the action of the top force of the locking member 10 when the release pull handle 6 is released, in order to facilitate the quick return of the support arms 31 and relieve the pressure of the first elastic members 11, in this embodiment, the rear ends of the two support arms 31 in each first pushing mechanism are connected by a second connecting arm 33, and a second elastic member 36 for automatically returning the support arms 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 support arms 31 are quickly returned by the elastic restoring force of the second elastic member 36.

Embodiment 2 regarding the above locking structure:

Referring again to fig. 13 and 14, 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 positioned in the locking hole 210 in the turntable 2, and the other locking member 10 is in the compressed state under the action of the bottom surface of the turntable 2. When the seat orientation needs to be adjusted, the driving mechanism is operated to enable the locking piece 10 entering the locking hole 210 to withdraw from the locking hole 210, and then the rotating table 2 is rotated, and as the two locking pieces 10 are both positioned on the rotation track swept in the rotation process of the locking hole 210, when the rotating table 2 rotates to the position above the other locking piece 10 of the locking hole 210, the locking piece 10 enters the locking hole 210, and the locking of the rotating table 2 is completed again, so that the aim of adjusting the seat orientation is achieved. Preferably, in the present embodiment, the two locking members 10 are arranged symmetrically with respect to the center of the base 1, 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 and backward directions.

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, where the second driving member is used to drive 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 that the locking member 10 is pushed out of the locking hole 210, and when the rotating table 2 is rotated, the second pushing mechanism rotates to the other locking member 10 along with the rotating table 2. In this embodiment, the second driving member is a lever member 71, that is, the lever member 71 pries the second pushing member 70 to move downward by leverage, specifically, the lever member 71 includes a first end 710 and a second end 711, the lever member 71 is mounted in the turntable 2 through a pivot shaft 712 provided between the first end 710 and the second end 711, the first end 710 and the second end 711 can move up and down reversely with respect to the pivot shaft 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 convenience of operation, in this embodiment, the driving mechanism further includes a release member 72 mounted on the outer sidewall of the rotary table 2, and referring to fig. 11, 12 and 16, the release member 72 is connected to the first end 710 of the lever member 71. When the rotary table 2 needs to be rotated, the lock release member 72 is pulled upwards, so that the first end 710 of the lever member 71 is tilted upwards, and the second end 711 of the lever member 71 is moved downwards, so that the second pushing member 70 is moved downwards, and the lock release operation of the locking member 10 is completed. Preferably, a third elastic member 720 is further installed above the releasing member 72, and the releasing member 72 is automatically reset by the third elastic member 720. Further, a fourth elastic member 700 is further sleeved at the lower end of the second pushing member 70, and an 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 locking member 72 to automatically reset.

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 in which the leg rest 81 is located above, the second position P2 is a fully closed state in which the leg rest 81 is located below, and an elastic driving member is disposed at a connection portion between the leg rest 81 and the seat body 80, and the elastic driving member provides an elastic driving force for the leg rest 81 to rotate toward the first position P1 constantly. In this embodiment, the comfort of the child safety seat is effectively improved by the provision of the leg rest 81, and when a child is placed in the seat body 80, the lower leg of the child can be extended forward, thereby being placed on the leg rest 81. Since the leg rest 81 is pivotally connected to the seat body 80, the leg rest 81 can be rotated in the F direction (as shown in fig. 19), so that the leg rest 81 can be rotated between the first position P1 and the second position P2, and thus the leg rest 81 can be rotated and adjusted to be in a fully opened state, a fully closed state, or a half closed state between the fully opened state and the fully closed state according to the current use environment. The resilient driving member provides a constant driving force to the leg rest 81 for movement toward the first position P1, while also providing resilient support to the legs of the child. Through the arrangement of the leg rest 81 with the structure, when the leg rest 81 affects the closing of the vehicle door, the elasticity of the elastic driving piece can be overcome, the leg rest 81 is pressed downwards, the leg rest 81 is in a folded or semi-folded state, after the vehicle door is closed, the leg rest 81 can tightly abut against the inner side of the vehicle door under the elastic restoring force of the elastic driving piece, and therefore the effect of the leg rest 81 on the closing of the vehicle door can be effectively avoided. The elastic driving member in this embodiment is preferably a spring 82 or a torsion spring, and the specific installation mode of the spring 82 or the torsion spring is common knowledge of those skilled in the art, and will not be described herein.

In summary, the child safety seat disclosed by the invention has the seat body 80 mounted on the rotary table 2, the locking hole 210 is arranged on the bottom surface 21 of the rotary table 2, the locking piece 10 is arranged on the base 1, and the rotary table 2 can drive the seat body 80 to rotate 180 degrees to be positioned again through the cooperation of the locking piece 10 and the locking hole 210, so that the seat body 80 is converted between a forward position and a backward position. When the orientation of the seat body 80 needs to be adjusted, the two lock release pull handles 6 or the lock release pieces 72 on the front surface 20 of the rotary table 2 are pulled to drive the first pushing piece 30 or the second pushing piece 70 to push the locking piece 10 downwards, so that the locking piece 10 is separated from the locking hole 210 on the back surface of the rotary table 2, then the rotary table 2 can be rotated, and after the rotary table is rotated 180 degrees, under the action of the reset spring of the locking piece 10, the locking piece 10 is clamped into the locking hole 210 again, and repositioning of the rotary table 2 after rotation is realized. Therefore, the child safety seat has the advantages of simple structure and convenient operation.

The foregoing disclosure is merely illustrative of the principles of the present invention, and thus, it is intended that the scope of the invention be limited thereto and not by this disclosure, but by the claims appended hereto.

Claims

1. A seat rotation mechanism, comprising:

a base providing a support carrier;

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

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

The locking piece is matched with the locking hole and arranged in the base, and the rotary table is positioned in a rotary mode through the matching of the locking piece and the locking hole;

a driving mechanism for driving the locking member to withdraw from the locking hole so that the rotary table is in a free rotation state,

Wherein, an accommodating space is arranged between the front surface and the bottom surface of the rotary table, the driving mechanism is arranged in the accommodating space,

Wherein the driving mechanism comprises a first pushing mechanism arranged at the locking hole, the first pushing mechanism comprises a first pushing piece and a first driving piece for driving the first pushing piece to move downwards, the first driving piece is used for driving the first pushing piece to move downwards so as to push the locking piece out of the locking hole,

The first pushing mechanism further comprises a fixing seat, the fixing seat is of a cylindrical structure with openings at the upper end and the lower end, and the first pushing piece is arranged in the fixing seat and can move up and down in the fixing seat.

2. The seat rotation mechanism of claim 1, further comprising a first elastic member having one end abutting the locking member and the other end abutting the base.

3. The seat rotation mechanism of claim 1, wherein one of the locking members is disposed in the base, at least two of the locking holes are located on the same rotational path that sweeps across the locking member.

4. A seat rotation mechanism according to claim 3, wherein at least two of the locking holes are arranged in central symmetry with respect to the center of the turntable.

5. The seat rotation mechanism of claim 4, wherein the drive mechanism comprises at least two first thrusting mechanisms disposed at each of the locking apertures, respectively.

6. The seat rotating mechanism according to claim 1, wherein two opposite side walls of the first pushing member are provided with limiting shafts, the fixing base is provided with sliding grooves for sliding the limiting shafts up and down, and the first driving member drives the limiting shafts to slide along the sliding grooves.

7. The seat rotating mechanism according to claim 6, wherein the first driving member is two supporting arms arranged at two sides of the fixing seat, the extending directions of the lengths of the two supporting arms are perpendicular to the sliding groove, limiting grooves extending obliquely up and down are formed in the two supporting arms, 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 downwards through forward movement of the two supporting arms.

8. The seat rotation mechanism of claim 7, further comprising a release handle and at least two pulling members respectively connected to at least two of the first pushing mechanisms, each pulling member having one end connected to the release handle and the other end connected to two support arms in one of the first pushing mechanisms; when the lock release 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 piece to move downwards.

9. The seat rotating mechanism according to claim 8, wherein front ends of the two support arms in each of the first pushing mechanisms are connected by a first connecting arm, and the pulling member is connected to the first connecting arm.

10. The seat rotating mechanism according to claim 8, wherein the rear ends of the two support arms in each of the first pushing mechanisms are connected by a second connecting arm, and a second elastic member for automatically resetting the support arms is provided between the second connecting arm and the fixing base.

11. The seat rotation mechanism of claim 9, wherein each of the first pushing mechanisms further comprises a wire slot disposed directly in front of the first connecting arm, the pulling member being connected to the first connecting arm via the wire slot, the wire slot being configured to restrict the pulling member located between the wire slot and the first connecting arm from being a straight line.

12. The seat rotating mechanism according to claim 9, wherein the number of the lock release pull handles is two, and two pulling members are connected in parallel to a first connecting arm in each of the first pushing mechanisms, and the two pulling members are connected with the two lock release pull handles respectively.

13. The seat rotating mechanism according to claim 12, wherein the two lock release handles are provided on opposite sides of the front surface of the turntable, respectively.

14. The seat rotation mechanism according to claim 1, wherein at least two locking members are provided in the base, one of the locking holes, and both of the locking members are located on a rotation locus swept by the locking holes.

15. The seat rotation mechanism of claim 14, wherein at least two of the locking members are arranged in central symmetry with respect to a center of the base.

16. A seat rotation mechanism, comprising:

a base providing a support carrier;

Wherein, at least two locking pieces are arranged in the base, the number of the locking holes is one,

The driving mechanism comprises a second pushing mechanism arranged above the locking hole, the second pushing mechanism comprises a second pushing piece and a second driving piece, and the second driving piece is used for driving the second pushing piece to move downwards so as to push the locking piece out of the locking hole.

17. The seat rotation mechanism of claim 16 wherein the second drive member is a 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 coupled to the second urging member.

18. The seat rotation mechanism of claim 17, wherein the drive mechanism further comprises a release member mounted on an outer sidewall of the turntable, the release member being coupled to the first end of the lever member.

19. A child safety seat comprising a seat body and a seat rotation mechanism according to any one of claims 1 to 18 for mounting the seat body.

20. A child safety seat according to claim 19, wherein a leg rest is provided on the seat body, the leg rest being connected to the seat body by a pivot arrangement such that the leg rest is rotatable between a first position in which the leg rest is in a fully open position above and a second position in which the leg rest is in a fully retracted position below, and a resilient drive member is provided at the junction of the leg rest and the seat body, the resilient drive member providing a resilient drive force for rotation of the leg rest in a constant direction to the first position.