CN109305073B

CN109305073B - Child safety seats

Info

Publication number: CN109305073B
Application number: CN201710616476.1A
Authority: CN
Inventors: 刘修平
Original assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO LTD
Current assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO LTD
Priority date: 2017-07-26
Filing date: 2017-07-26
Publication date: 2024-11-12
Anticipated expiration: 2037-07-26
Also published as: WO2019019524A1; CN109305073A

Abstract

The invention relates to a child safety seat, which comprises a seat body (1), a rotary supporting seat (2), a base (3) and a locking mechanism, wherein the seat body (1) is arranged on the rotary supporting seat (2), the rotary supporting seat (2) is arranged on the base (3), the locking mechanism is arranged on the rotary supporting seat (2) and can rotate relative to the base (3) along with the seat body (1) and the rotary supporting seat (2), and the locking mechanism can lock or unlock between the rotary supporting seat (2) and the base (3) in a rotary mode. The locking mechanism is arranged on the rotary supporting seat and can rotate along with the rotation of the rotary supporting seat, so that an operator can realize one-hand operation; the locking mechanism realizes locking or unlocking in a rotating mode, compared with a linear motion mode, the operation is more labor-saving, the motion stroke is shorter, the requirement on the operation space is smaller, and the operation is more convenient.

Description

Child safety seat

Technical Field

The invention relates to the technical field of seats, in particular to a child safety seat.

Background

Currently, in order to meet the demand of forward and reverse mounting and riding of child passengers, a child safety seat for an automobile may employ a rotatable seat, and a seat body may be rotated relative to a base, for example, when a child Tong Chengyuan wants to ride forward, the seat body may be rotated to a forward position; when a child occupant wants to ride rearward, the seat body may be rotated to a rearward position.

In the prior art, although a rotatable seat exists, a locking mechanism arranged for enabling the seat to be rotatable has a complex structure, and may cause insensitive unlocking actions, low locking and unlocking reliability and poor safety; the unlocking or locking is realized by adopting a linear motion mode mostly, the operation is laborious, a motion stroke with a certain length is required to be set, and the requirement on an operation space is relatively high; the locking mechanism is arranged on the base, so that one-hand operation cannot be realized; still other locking mechanisms require adjustment of the seat body to a particular attitude angle to function, constituting unnecessary limitations on seat rotation.

It should be noted that the information disclosed in the background section of the present invention is only for increasing the understanding of the general background of the present invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a child safety seat, which is used for improving the operation convenience of the child safety seat.

In order to achieve the above object, the present invention provides a child safety seat comprising a seat body, a rotation support base, a base, and a locking mechanism, wherein the seat body is mounted on the rotation support base, the rotation support base is mounted on the base, the locking mechanism is disposed on the rotation support base and is capable of rotating with the seat body and the rotation support base relative to the base, and the locking mechanism is capable of locking or unlocking between the rotation support base and the base in a rotating manner.

Further, the locking mechanism includes a rotating member rotatable relative to the rotation support.

Further, the locking mechanism further comprises a rotating shaft, the rotating member is provided with a mounting hole, and the rotating shaft penetrates through the mounting hole and is mounted on the rotating support seat, so that the rotating member can rotate around the rotating shaft.

Further, the locking mechanism further comprises a guiding limiting piece, a clamping groove is formed in the guiding limiting piece, the rotating piece comprises a clamping position portion, and the clamping position portion can be inserted into or separated from the clamping groove through rotation of the rotating piece, so that locking or unlocking of the locking mechanism is achieved.

Further, the rotating member includes an operation portion, and the rotating member is configured to be rotatable by pressing the operation portion to drive the click portion to move upward and be disengaged from the click groove.

Further, the guide limiting piece is arranged on the base.

Further, the guide limiting piece is provided with a limiting structure capable of limiting the rotary supporting seat to move in the vertical direction.

Further, limit structure is including setting up first boss on the direction locating part, rotary support seat includes the rotary disk, be equipped with the second boss on the rotary disk, first boss overlap joint is in the top of second boss, in order to restrict rotary support seat moves along vertical direction.

Further, the guiding limiting piece comprises at least two guiding limiting pieces, wherein the two guiding limiting pieces are arranged front and back.

Further, the locking mechanism further includes a reset member for resetting the rotating member in the unlocked state to the locked state.

Further, the reset piece comprises a spring, one end of the spring is connected with the rotary supporting seat, and the other end of the spring is connected with the rotary piece.

Further, the child safety seat further comprises a limiting piece, the rotary support base comprises a rotary disc, the limiting piece is arranged above the rotary disc, and a bolt penetrates through the limiting piece to install the rotary support base on the base.

Further, a concave table is arranged on the rotating disc, and the limiting piece is arranged in the concave table.

Further, the child safety seat is provided with a U-shaped bar for preventing the child safety seat from being turned over, the U-shaped bar includes a main body portion and extension sections extending from both end portions of the main body portion in a direction in which the base is located, the base includes an upper cover and a lower cover, and the extension sections extend into the base to disperse forces borne by the upper cover onto the lower cover.

Further, a support column is arranged between the outer surface of the extension section and the lower surface of the upper cover and/or the upper surface of the lower cover, so that the extension section can be mutually abutted with the lower surface of the upper cover or the upper surface of the lower cover through the support column.

Further, the extension section is perpendicular to the main body portion.

Further, the extension section and the main body part are in arc transition.

Based on the technical scheme, the rotary supporting seat is arranged between the seat body and the base, and can rotate relative to the base so as to drive the seat body to rotate relative to the base, thereby meeting the requirements of children passengers on riding in different directions; the locking mechanism is arranged on the rotary supporting seat and can rotate along with the rotation of the rotary supporting seat, so that an operator can rotate the rotary supporting seat by applying force while operating the locking mechanism by one hand, further drive the seat body to rotate, and the other hand released can hold a child or take other articles, thereby improving the operation convenience; the locking mechanism realizes the locking or unlocking between the rotary supporting seat and the base in a rotary mode, compared with a linear motion mode, the operation is more labor-saving, the motion stroke is shorter, the requirement on the operation space is smaller, and the operation is more convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of a child safety seat according to an embodiment of the present invention after half-cut.

FIG. 2 is a schematic view of a structure of a rotary support base and a base of a child safety seat according to an embodiment of the present invention.

FIG. 3 is a schematic view of a half cut structure of a rotary support seat of an embodiment of a child safety seat according to the present invention.

FIG. 4 is a schematic view of a guide limiter in an embodiment of the child safety seat of the present invention.

FIG. 5 is a bottom view of the upper cover of the base in one embodiment of the child safety seat of the present invention.

FIG. 6 is a top view of the lower cover of the base in one embodiment of the child safety seat of the present invention.

In the figure:

1. A seat body; 2. a rotary support base; 3. a base; 4. a limiting piece; 5. a bolt; 6. a rotating member; 7. a guide limiting piece; 8. a rotating shaft; 9. a spring; 10. a U-shaped rod;

21. A rotating disc; 211. a second boss; 22. a concave table;

31. an upper cover; 32. a lower cover; 33. a support column;

61. A clamping part; 62. an operation unit;

71. A first boss; 72. a clamping groove; 73. a stop block; 74. a mounting column;

101. an extension section; 102. an extension.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.

As shown in fig. 1, which is a schematic view of the structure of an embodiment of the child safety seat of the present invention after being cut from the middle, only half of the entire child safety seat is shown.

In this embodiment, the child safety seat includes a seat body 1, a rotation support seat 2, a base 3, and a locking mechanism, the seat body 1 is mounted on the rotation support seat 2, the rotation support seat 2 is mounted on the base 3, the locking mechanism is provided on the rotation support seat 2 and is capable of rotating with respect to the base 3 along with the seat body 1 and the rotation support seat 2, and the locking mechanism is capable of achieving locking or unlocking between the rotation support seat 2 and the base 3 in a rotatable manner. The locking mechanism has a locked state in which the seat body 1 and the rotary support seat 2 are fixed relative to the base 3 and an unlocked state; in the unlocked state, the seat body 1 and the rotation support seat 2 can rotate relative to the base 3.

Wherein the seat body 1 can be detachably mounted on the swivel support 2. The seat body 1 may also be configured to be capable of sliding with respect to the rotary support seat 2, so as to adjust an inclination angle of the seat body 1 with respect to the rotary support seat 2 and the base 3, so as to change a posture of the seat body 1, and improve comfort of the seat body 1.

In the above embodiment, the rotary support seat 2 is disposed between the seat body 1 and the base 3, and the rotary support seat 2 can rotate relative to the base 3 to drive the seat body 1 to rotate relative to the base 3, so as to meet the requirements of children passengers riding in different directions.

In the above embodiment, the locking mechanism is disposed on the rotary support base 2, and the locking mechanism can rotate along with the rotation of the rotary support base 2, so that an operator can operate the locking mechanism by one hand and simultaneously rotate the rotary support base 2 through force application, and further drive the seat body 1 to rotate, and the other hand released can hold a child or hold other articles, thereby improving the operation convenience. For the scheme that the locking mechanism can not rotate along with the rotary supporting seat 2 in the prior art, single-hand operation can not be realized, an operator can only operate the locking mechanism by one hand, and the other hand enables the rotary supporting seat to rotate, so that the operation is inconvenient.

In addition, the locking mechanism is arranged on the rotary supporting seat 2 and rotates along with the rotation of the rotary supporting seat 2, so that the rotation of the rotary supporting seat 2 is not limited by the posture of the seat body 1, and the locking mechanism is relatively independent from the posture adjustment of the seat body 1.

Specifically, the locking mechanism is preferably provided at a position of the rotation support base 2 corresponding to the front end of the seat body 1, at which time the operator holds the front end of the seat body 1 while operating the locking mechanism by one hand, so that the seat body 1 and the rotation support base 2 are rotated relative to the base 3, which is convenient and labor-saving to operate.

In the above embodiment, the locking mechanism realizes the locking or unlocking between the rotary support seat 2 and the base 3 in a rotary manner, compared with a linear motion manner, the operation is more labor-saving, the motion stroke is shorter, the requirement on the operation space is smaller, and the operation is more convenient.

As a preferred embodiment of the child safety seat of the invention, the locking mechanism comprises a swivel member 6, the swivel member 6 being rotatable relative to the swivel support base 2.

As shown in fig. 3, the locking mechanism may further include a rotation shaft 8, and the rotation member 6 is provided with a mounting hole, through which the rotation shaft 8 passes and is mounted on the rotation support base 2, and the rotation shaft 8 is fixed with respect to the rotation support base 2 so that the rotation member 6 can rotate around the rotation shaft 8.

Of course, the form of engagement between the rotary member 6 and the rotary shaft 8 is not limited to the above one, and other forms may be adopted as long as the same function can be achieved. For example, in another embodiment, the rotating member 6 is fixed relative to the rotating shaft 8, and the rotating member 6 can be rotated relative to the rotating support 2 by rotating the rotating shaft 8.

Further, the child safety seat further comprises a guiding and limiting piece 7, a clamping groove 72 is formed in the guiding and limiting piece 7, the rotating piece 6 comprises a clamping portion 61, and the clamping portion 61 can be inserted into or separated from the clamping groove 72 through rotation of the rotating piece 6, so that locking or unlocking of the locking mechanism can be achieved.

Of course, in another embodiment, the guiding and limiting member 7 may be provided with a clamping portion, and the rotating member 6 may be provided with a clamping groove, so that the locking mechanism may be locked or unlocked by the cooperation of the clamping groove and the clamping portion.

As shown in fig. 4, the locking groove 72 has a groove-like structure, and the wall surface of the locking groove 72 can restrict the locking portion 61 inserted into the locking groove 72 from being separated from the locking groove 72 by a malfunction. Specifically, in the circumferential direction of the rotation support seat 2, stoppers 73 are provided both upstream and downstream of the catching groove 72 to prevent the catching portion 61 of the rotation member 6 from coming out of the catching groove 72 due to a false operation. In the embodiment shown in fig. 4, the side of the clamping groove 72 close to the rotary support seat 2 is of an opening structure, so that the opening area of the clamping groove 72 can be increased, the difficulty of inserting the clamping portion 61 into the clamping groove 72 can be reduced, and the limitation of the clamping groove 72 on the clamping portion 61 in the circumferential direction is not affected. In addition, the stopper 73 may be provided with a lightening hole.

As shown in fig. 3, the rotating member 6 further includes an operation portion 62, and the rotating member 6 is configured to be able to rotate the rotating member 6 by pressing the operation portion 62 to drive the positioning portion 61 to move upward and disengage from the clamping groove 72. In operation, the operation part 62 can be pressed downwards by a single hand through the tiger mouth position to drive the rotating piece 6 to rotate, the rotation of the rotating piece 6 can drive the clamping part 61 to move upwards, so that the clamping part 61 is separated from the clamping groove 72, unlocking of the locking mechanism is realized, and meanwhile, the rotating support seat 2 is grasped by fingers, so that the rotating support seat 2 is rotated, and meanwhile, the seat body 1 is driven to rotate. The operation mode meets the design requirement of the artificial engineering, the operation is more convenient, the structure of the locking mechanism is simple, the action is sensitive, and the reliability and the safety are high.

Wherein, the clamping part 61 and the operation part 62 can be two relatively independent components and form the rotary piece 6 by a mode of interconnection; and the structure can be simplified by integrally forming. The whole of the rotating member 6 is approximately L-shaped, preferably, the rotating member 6 is a plastic member, and a slotted hole can be formed in the rotating member 6 for convenient manufacture, so that partial hollowing is realized, and the problems of shrinkage and the like caused by too thick packing at the bending position during molding are avoided.

The guide limit 7 may be provided on the base 3. As shown in fig. 4, the guiding and limiting piece 7 is further provided with a groove, a mounting column 74 is arranged in the groove, a mounting hole is arranged on the mounting column 74, and a screw penetrates through the mounting hole to realize connection of the guiding and limiting piece 7 and the base 3.

In addition, the locking mechanism further includes a reset member for resetting the rotating member 6 in the unlocked state to the locked state.

Preferably, the restoring member comprises a spring 9, one end of the spring 9 is connected with the rotary support 2, and the other end of the spring 9 is connected with the rotary member 6. When the operating portion 62 is pressed downward, the rotating member 6 rotates, the click portion 61 moves upward and is disengaged from the click groove 72, unlocking of the locking mechanism is achieved, and at this time, the spring 9 is compressed; when the pressing force to the operation portion 62 is removed, the spring 9 returns to the natural length under the action of the elastic force, and drives the rotary member 6 to rotate reversely, so that the clamping portion 61 is reinserted into the clamping groove 72, and the locking mechanism is locked.

As a further improvement of the child safety seat embodiment of the present invention, the guide stopper 7 is provided with a stopper structure capable of restricting the movement of the rotation support base 2 in the vertical direction. It will be seen that in this embodiment, the guide limiter 7 may not only act as a component of the locking mechanism, but also act to limit the longitudinal freedom of the rotary support 2.

Specifically, the limit structure includes a first boss 71 disposed on the guiding limit member 7, the rotary support seat 2 includes a rotary disk 21, a second boss 211 is disposed on the rotary disk 21, and the first boss 71 is lapped over the second boss 211 to limit the rotary support seat 2 to move along the vertical direction.

Preferably, the guiding and limiting elements 7 comprise at least two guiding and limiting elements 7, wherein the two guiding and limiting elements 7 are arranged back and forth to play a better role in protecting the car in case of collision. The number of the guide limiting pieces 7 can be flexibly set according to actual needs, and when the number of the guide limiting pieces 7 is enough, the seat body 1 can rotate by 360 degrees.

In a preferred embodiment of the child safety seat provided by the present invention, as shown in fig. 2, the child safety seat further includes a limiting piece 4, the rotation support base 2 includes a rotation plate 21, the limiting piece 4 is disposed above the rotation plate 21, and the bolt 5 passes through the limiting piece 4 to mount the rotation support base 2 on the base 3. The limiting piece 4 is preferably a circular iron piece so as to have higher strength, and the limiting piece 4 can also play a role in preventing the rotary support seat 2 from moving along the vertical direction.

Preferably, the rotating disc 21 is provided with a concave table 22, and the limiting piece 4 is arranged in the concave table 22. Therefore, the limiting piece 4 can be flush with the surface of the rotary disk 21 as much as possible, and the phenomenon that the surface of the rotary disk 21 is uneven due to the fact that the limiting piece 4 protrudes out of the surface of the rotary disk 21 is prevented, and the installation stability of the seat body 1 is affected.

The concave table 22 can be of a countersunk structure, and the concave table 22 can be provided with a through hole, so that the bolt 5 can be conveniently penetrated, and the bolt 5 can be matched with a nut to realize the positioning of the limiting piece 4.

As shown in fig. 2 and 3, the rotary support 2 includes a rotary disk 21, a rotary matching cavity is disposed on an upper cover 31 of the base 3, and the rotary disk 21 is assembled in the rotary matching cavity, so that the upper cover 31 of the base 3 is a main body of bearing force, and in order to prevent stress concentration, the stress condition of the upper cover 31 needs to be optimized.

As a further modification of the child safety seat embodiment of the present invention, as shown in fig. 5 and 6, the child safety seat is provided with a U-shaped bar 10 for preventing the child safety seat from being turned over, the U-shaped bar 10 including a main body portion and extension sections 101, 102 extending from both end portions of the main body portion in a direction in which the base 3 is located, the base 3 including an upper cover 31 and a lower cover 32, the extension sections 101, 102 extending into the interior of the base 3 to disperse a force borne by the upper cover 31 onto the lower cover 32. The specific shape of the extension sections 101, 102 may be designed to match the contours of the upper and lower covers 31, 32.

In this modified embodiment, the U-shaped rod 10 is extended to disperse the stress of the upper cover 31 of the base 3 onto the lower cover 32, so that the upper cover 31 and the lower cover 32 of the base 3 form a stress community, the stress of the base 3 is better dispersed, the purpose of realizing a new function by utilizing the existing structure of the child safety seat is achieved, the structural design is simplified, new parts are avoided, the whole weight of the child safety seat is prevented from being increased, and the production cost is reduced.

Further, as shown in fig. 5, support columns 33 are provided between the outer surfaces of the extension sections 101, 102 and the lower surface of the upper cover 31 and/or the upper surface of the lower cover 32, so that the extension sections 101, 102 can abut against the lower surface of the upper cover 31 or the upper surface of the lower cover 32 through the support columns 33, thereby preventing the upper cover 31 or the lower cover 32 from collapsing due to the clearance between the upper cover 31 or the lower cover 32 and the extension sections 101, 102. The force of the upper cover 31 can be more effectively transmitted and dispersed to the lower cover 32 by the support columns 33 and the extension sections 101, 102.

The specific structure of the support column 33 is not limited, and may be in the form of a column or a reinforcing rib, as long as the extension sections 101, 102 can be made to abut against the lower surface of the upper cover 31 or the upper surface of the lower cover 32.

As shown in fig. 5 and 6, the main body portion of the U-shaped bar 10 is located outside the base 3, and the child safety seat is placed on the vehicle for use, and when the vehicle is suddenly accelerated or a rear-end collision occurs, the child safety seat has a backward-tilting inertia with respect to the vehicle, and at this time, the U-shaped bar contacts with the backrest of the vehicle, so that the moment of inertia can be counteracted, and the child safety seat is prevented from backward tilting.

To better perform the function of resisting overturning and dispersing the stress of the base, the extension sections 101, 102 are preferably mutually perpendicular to the main body portion. In particular, the body portion may be disposed vertically and the extension segments 101, 102 disposed horizontally.

Further, the extension sections 101, 102 and the main body portion are in transition by an arc. Corresponding baffles can also be arranged on the upper cover 31 and the lower cover 32 of the base 3, and the baffles are arranged on two sides of the extension sections 101 and 102 so as to ensure the stability of the extension sections 101 and 102.

In addition, for improved stability, the extension sections 101, 102 may be interconnected with the upper and lower covers 31, 32 of the base 3 by screws.

In the above embodiments, the rotary support base 2 is preferably made of plastic material, and the molding process of the plastic part is simple and the molding speed is high, so that the production efficiency is high; the cost of the plastic part is low, and the economical efficiency is better than that of the metal part; the plastic part has lighter weight, so that the total weight of the child safety seat can be reduced; the surface quality of the plastic part is easy to control, compared with hardware, the plastic part has no edge benefiting and prevents the phenomenon of cutting hands during operation.

The operation of one embodiment of the child safety seat of the present invention is described below with reference to fig. 1-6:

As shown in fig. 1, the seat body 1 is mounted on a rotation support base 2, and the rotation support base 2 is mounted on a base 3. As shown in fig. 2, a limiting piece 4 is arranged above the rotary support seat 2, and the bolt 5 passes through the limiting piece 4 to realize connection between the rotary support seat 2 and the base 3, wherein the limiting piece 4 can limit the rotary support seat 2 to move along the vertical direction so as to prevent the rotary support seat 2 from overturning upwards.

As shown in fig. 3, the locking mechanism includes a rotary member 6, a rotary shaft 8, and a spring 9, the rotary shaft 8 is penetrated in a mounting hole of the rotary member 6, and the rotary member 6 is rotatable about the rotary shaft 8. The operation portion 62 of the rotating member 6 is pressed downward, so that the rotating member can be rotated clockwise, and the locking portion 61 is lifted upward to disengage from the locking groove 72 provided in the guide stopper 7, thereby realizing unlocking. The locking portion 61 is reset by the spring 9 and reinserted into the locking groove 72 to lock.

The guide limiting piece 7 is provided with the first boss 71, the rotary disk 21 on the rotary support seat 2 is provided with the second boss 211, the first boss 71 is pressed above the second boss 211, the longitudinal freedom degree of the rotary support seat 2 can be limited, the rotary support seat 2 is limited to move along the vertical direction, the rotary support seat 2 is prevented from overturning upwards, and the movement stability and strength of the rotary support seat 2 are ensured.

As shown in fig. 4, the guide limiting member 7 may be connected to the base 3 by passing a screw through a mounting hole formed in the mounting post 74. The guide limiting pieces 7 are respectively arranged at the front and the rear.

As shown in fig. 5 and 6, the extending sections 101 and 102 of the U-shaped rod are locked on the upper cover 31 of the base 3 through screws, and the extending sections 101 and 102 can be in direct contact with the lower surface of the upper cover 31 and the upper surface of the lower cover 32, or can be abutted against each other through the supporting columns 33, so that the compressive capacity of the upper cover 31 is increased, and the U-shaped rod 10, the upper cover 31 and the lower cover 32 form a stress common body, so that the stress applied to the upper cover 31 is effectively transferred to the lower cover 32, and the stress applied to the upper cover 31 is better dispersed.

The specific operation steps are as follows: taking the seat body 1 as an initial orientation placement example, a single hand presses the operation part 62 downwards by using the tiger mouth position, the rotating piece 6 rotates around the rotating shaft 8, the clamping part 61 is lifted upwards and separated from the clamping groove 72 on the front guiding limiting piece 7, the rotating support seat 2 is grasped by fingers, and the rotating support seat 2 is rotated by applying force, so that the seat body 1 is driven to rotate; after the rotary supporting seat 2 rotates 180 degrees, the jaw position releases the operation part 62, the rotary piece 6 reversely rotates under the action of the spring 9, the clamping part 61 is inserted into the clamping groove 72 on the rear guide limiting piece 7, locking is achieved, stability and safety of the seat body 1 are guaranteed, and the seat body 1 faces backwards.

It should be noted that the above-mentioned operation steps are only specific operation steps of one embodiment of the child safety seat of the present invention, and are not meant to be merely performed according to the above-mentioned operation steps, and different operation steps are allowed according to different operation habits, and the child safety seat of the present invention may have a plurality of different embodiments, and the corresponding operation steps may also be different.

By way of illustration of various embodiments of the child safety seat of the present invention, it can be seen that the child safety seat embodiments of the present invention have at least one or more of the following advantages:

1. The rotary supporting seat can rotate relative to the base so as to drive the seat body to rotate relative to the base, thereby meeting the requirements of children passengers on riding in different directions;

2. the locking mechanism is arranged on the rotary supporting seat and can rotate along with the rotation of the rotary supporting seat, so that an operator can realize one-hand operation;

3. The locking mechanism realizes the locking or unlocking between the rotary supporting seat and the base in a rotary mode, compared with a linear motion mode, the operation is more labor-saving, the motion stroke is shorter, the requirement on the operation space is smaller, and the operation is more convenient;

4. The locking mechanism has the advantages of simple structure, sensitive unlocking action, high reliability and good safety;

5. the guide limiting piece not only can be matched with the locking mechanism to realize the locking effect, but also has the effect of limiting the longitudinal freedom degree of the rotary supporting seat;

6. and the stress of the upper cover of the base is dispersed by adopting the anti-overturning U-shaped rod, so that the stress condition of the base is optimized.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims

1. The child safety seat is characterized by comprising a seat body (1), a rotary supporting seat (2), a base (3) and a locking mechanism, wherein the seat body (1) is installed on the rotary supporting seat (2), the rotary supporting seat (2) is installed on the base (3), the locking mechanism is arranged on the rotary supporting seat (2) and can rotate relative to the base (3) along with the seat body (1) and the rotary supporting seat (2), and the locking mechanism can lock or unlock between the rotary supporting seat (2) and the base (3) in a rotary mode; the locking mechanism comprises a rotating member (6), the rotating member (6) being rotatable relative to the rotation support (2); the child safety seat further comprises a guide limiting piece (7), a clamping groove (72) is formed in the guide limiting piece (7), the rotating piece (6) comprises a clamping portion (61), and the clamping portion (61) can be inserted into or separated from the clamping groove (72) through rotation of the rotating piece (6) so as to lock or unlock the locking mechanism; one side of the clamping groove (72) close to the rotary supporting seat (2) is of an opening structure; the guide limiting piece (7) is provided with a limiting structure capable of limiting the rotary supporting seat (2) to move in the vertical direction.

2. Child safety seat according to claim 1, wherein the locking mechanism further comprises a spindle (8), wherein the swivel member (6) is provided with a mounting hole, and wherein the spindle (8) passes through the mounting hole and is mounted on the swivel support (2) such that the swivel member (6) can swivel around the spindle (8).

3. Child safety seat according to claim 1, wherein the swivel member (6) comprises an operating portion (62), the swivel member (6) being arranged to enable the swivel member (6) to swivel by pressing the operating portion (62) to bring the detent portion (61) up and out of the detent (72).

4. Child safety seat according to claim 1, characterized in that the guiding limiter (7) is arranged on the base (3).

5. Child safety seat according to claim 1, characterized in that the limit structure comprises a first boss (71) arranged on the guiding limit piece (7), the rotary support seat (2) comprises a rotary disc (21), a second boss (211) is arranged on the rotary disc (21), and the first boss (71) is lapped above the second boss (211) so as to limit the rotary support seat (2) to move along the vertical direction.

6. Child safety seat according to claim 1, characterized in that the guiding limiter (7) comprises at least two guiding limiters, wherein two guiding limiters (7) are arranged in front of each other.

7. Child safety seat according to claim 1, characterized in that the locking mechanism further comprises a reset element for resetting the swivel element (6) in the unlocked state to the locked state.

8. Child safety seat according to claim 7, characterized in that the return element comprises a spring (9), one end of the spring (9) being connected to the swivel support (2), the other end of the spring (9) being connected to the swivel element (6).

9. Child safety seat according to claim 1, characterized in that the child safety seat further comprises a limit tab (4), the swivel support (2) comprises a swivel plate (21), the limit tab (4) is arranged above the swivel plate (21), a bolt (5) passes through the limit tab (4) to mount the swivel support (2) on the base (3).

10. Child safety seat according to claim 9, characterized in that the rotating disc (21) is provided with a recess (22), the limit piece (4) being arranged in the recess (22).

11. Child safety seat according to claim 1, characterized in that the child safety seat is provided with a U-shaped bar (10) for preventing the child safety seat from turning over, the U-shaped bar (10) comprising a body part and an extension (101; 102) extending from both ends of the body part in the direction of the base (3), the base (3) comprising an upper cover (31) and a lower cover (32), the extension (101; 102) extending into the interior of the base (3) for distributing the forces borne by the upper cover (31) onto the lower cover (32).

12. Child safety seat according to claim 11, characterized in that a support column (33) is provided between the outer surface of the extension (101; 102) and the lower surface of the upper cover (31) and/or the upper surface of the lower cover (32) so that the extension (101; 102) can be brought into abutment with the lower surface of the upper cover (31) or the upper surface of the lower cover (32) by means of the support column (33).

13. Child safety seat according to claim 11, characterized in that the extension (101; 102) is mutually perpendicular to the main body portion.

14. Child safety seat according to claim 13, characterized in that the extension (101; 102) and the main body part are transited by an arc of a circle.