Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an improved child safety seat.
In order to achieve the purpose, the invention adopts the technical scheme that:
a child safety seat comprises a base, a shell, a locking mechanism and an unlocking mechanism, wherein the shell can be rotatably arranged on the base, the locking mechanism is used for locking the relative position of the base and the shell, the unlocking mechanism is used for driving the locking mechanism to be unlocked, the locking mechanism comprises locking pieces which can be slidably arranged on the left side and the right side of the base and locking grooves which are respectively arranged on the left side and the right side of the shell, when the locking mechanism is in a locking state, the locking pieces on the left side and the right side are respectively inserted into the locking grooves on the corresponding side, when the locking mechanism is in an unlocking state, the locking pieces are separated from the locking grooves, the unlocking mechanism comprises operating pieces which are respectively arranged on the left side and the right side of the base and are used for manual operation and driving pieces which are respectively matched with the operating pieces on each side, and the operating pieces and the driving pieces can be slidably arranged on the base, the driving piece is connected or matched with the locking pieces on the left side and the right side, when the operating piece on any side is operated to enable the operating piece to slide outwards relative to the base, the driving piece is driven to slide relative to the base, the locking pieces on the two sides can slide relative to the base and be separated from the locking groove through the matching or connection of the driving piece and the locking pieces, and the locking mechanism is unlocked.
Preferably, the operating element and the locking element are both arranged on the base in a left-right sliding manner, the driving element is arranged on the base in a front-back sliding manner, when the operating element on any side is operated to unlock, the driving element is driven to slide forwards, the locking element on the same side as the operated operating element is opposite to the sliding direction of the operating element, and the locking elements on the left side and the right side are opposite to the sliding direction of the locking element.
Preferably, the locking piece of left and right sides all through the connecting piece with the driving piece is connected, an end fixed connection of connecting piece is in on the driving piece, another tip of connecting piece fixed connection respectively in correspond one side on the locking piece, the connecting piece has elasticity.
Furthermore, the connecting piece includes first connecting portion and second connecting portion that are located both ends respectively, connect first connecting portion with the intermediate junction portion between the second connecting portion, first connecting portion with driving piece looks fixed connection, the second connecting portion with locking piece looks fixed connection, when locking mechanism is in the locking state, intermediate junction portion is the arc.
Preferably, be provided with two inclined planes on the driving piece, two the inclined plane all from the past backward to the outside slope of base, the left and right sides all be provided with the cooperation portion on the operating parts, the cooperation portion respectively support establish on corresponding one side the inclined plane.
Furthermore, be provided with two first spouts on the driving piece, the length extending direction of first spout with the driving piece with the slip direction of operating parts is all crossing aslope, cooperation portion is located in the first spout and can follow the length extending direction of first spout sets up with sliding, a lateral wall that first spout extends along its length direction is the inclined plane.
Further, the two inclined surfaces are symmetrically arranged.
Preferably, when the operating member on one side is operated to slide outwards relative to the base, the operating member on the other side is fixed relative to the base.
Further, the operating parts on the left side and the right side are provided with matching parts matched with the driving part and second sliding grooves extending along the sliding direction of the driving part, the matching parts can be arranged in the second sliding grooves in a sliding mode along the length extending direction of the second sliding grooves, and when the locking mechanism is in a locking state, the matching parts abut against one end parts, close to the center of the base, of the second sliding grooves.
Preferably, the child safety seat further includes an elastic member for driving the driving member, the locking member and the operating member to return after the locking mechanism is unlocked, one end of the elastic member is disposed on the base, and the other end of the elastic member is disposed on the driving member.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child safety seat is simple in structure, when the operating pieces on any one side of the left side and the right side of the child safety seat are operated, the locking mechanism arranged between the base and the shell can be unlocked, so that the angle between the base and the shell can be adjusted, and the unlocking mode is convenient and quick, so that the child safety seat is convenient to use.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.
As shown in fig. 1 and 2, the child safety seat of the present invention includes a base 1 and a housing 2 disposed on the base 1, the base 1 is connected to a car seat, a seat for a child to sit is disposed on the housing 2, and the base 1 and the housing 2 are rotatably connected to each other, so that an angle between the base 1 and the housing 2 can be adjusted to adjust a sitting posture of the seat, thereby improving comfort of the child safety seat in use. The child safety seat further comprises a locking mechanism for locking the relative positions of the base 1 and the housing 2 and an unlocking mechanism for actuating the locking mechanism to unlock so that the angle between the base 1 and the housing 2 can be adjusted.
As shown in fig. 3 to 9, the locking mechanism includes locking members 3 slidably provided on the left and right sides of the base 1, and locking grooves 21 provided on the left and right sides of the housing 2 and engaged with the locking members 3. When the locking mechanism is in a locking state, the locking pieces 3 on the left side and the right side are respectively inserted into the locking grooves 21 on the corresponding sides; when the lock mechanism is in the unlocked state, the locking members 3 on both the left and right sides are disengaged from the lock grooves 21 on the corresponding side. In this embodiment, the lock member 3 is a lock pin.
The unlocking mechanism comprises operation pieces 41 which can be arranged on the left side and the right side of the base 1 in a sliding mode and driving pieces 42 which can be arranged on the base 1 in a sliding mode, the operation pieces 41 are matched with the driving pieces 42, the driving pieces 42 are connected or matched with the locking pieces 3 on the left side and the right side at the same time, when the operation pieces 41 on any side are operated to enable the operation pieces to slide outwards relative to the base 1, the driving pieces 42 are driven to slide relative to the base 1, the locking pieces 3 on the left side and the right side can slide relative to the base 1 through the matching or connection of the driving pieces 42 and the locking pieces 3 until the locking pieces are.
In the present embodiment, the operating element 41 and the locking element 3 are both slidably disposed on the base 1 in the left-right direction, the driving element 42 is slidably disposed on the base 1 in the front-rear direction, when the operating element 41 on either side is operated to unlock, the driving element 42 is driven to slide forward, the locking element 3 on the same side as the operated operating element 41 slides in the opposite direction to the operating element 41, and the locking elements 3 on the left and right sides slide in the opposite direction.
The driving member 42 is provided with two inclined surfaces 421a, the two inclined surfaces 421a are inclined from front to back to the outer side of the base 1, the operating members 41 on the left and right sides are provided with engaging portions 411, and the engaging portions 411 are respectively abutted to the inclined surfaces 421a on the corresponding side. When the operating element 41 on either side is operated to slide outward relative to the base 1, the engaging portion 411 disposed thereon is driven to slide outward relative to the base 1, and in this process, the engaging portion 411 and the inclined surface 421a abut against each other, so that the driving element 42 slides forward relative to the base 1.
In this embodiment, two first sliding grooves 421 are disposed on the driving member 42, the length extending direction of the first sliding grooves 421 is obliquely intersected with the sliding directions of the driving member 42 and the operating member 41, the engaging portion 411 is disposed in the first sliding groove 421 and can be slidably disposed along the length extending direction of the first sliding groove 421, and one side wall of the first sliding groove 421 extending along the length direction thereof is the inclined surface 421a engaged with the engaging portion 411. The fitting portion 411 is a slide pin.
Preferably, the two first sliding grooves 421, i.e., the two inclined surfaces 421a, are symmetrically disposed with respect to the center of the base 1.
In the present embodiment, the fitting portion 411 is provided on the operating member 41 so as to be slidable in the sliding direction of the operating member 41. Thus, when the operating member 41 on one side is operated to slide outwardly relative to the base 1 to unlock the locking mechanism, the operating member 41 on the other side can be fixed relative to the base 1 and remain stationary.
Specifically, the operating element 41 is provided with a second slide groove 412 extending in the sliding direction thereof, and the engaging portion 411 is slidably provided in the second slide groove 412 in the longitudinal extending direction of the second slide groove 412. When the locking mechanism is in the locked state, the engaging portion 411 abuts on an end portion of the second sliding groove 412 near the center of the base 1. Thus, when the operating element 41 on either side is operated to slide outward, i.e., leftward, relative to the base 1 when the operating element 41 on the left side is operated in the locked state of the locking mechanism, the engaging portion 411 abuts against the end of the second sliding slot 412, so that the engaging portion 411 is driven to slide to the left side of the base 1 synchronously with the operating element 41 on the left side. In this process, the driving member 42 is slid forward by the engagement of the engaging portion 411 on the left side and the side wall of the first sliding groove 421. When the driving member 42 slides forward, the right engaging portion 411 slides rightward in the second sliding groove 412 of the right operating member 41, and the right operating member 41 remains stationary.
The operating member 41 is further provided with an operating portion 413 for being held by a human hand during unlocking, and the operating portions 413 of the operating members 41 on the left and right sides respectively extend to the outer sides of the left and right sides of the base 1 so as to operate the operating members 41 during unlocking.
In this embodiment, the driving member 42 is connected to the locking members 3 on both left and right sides by a connecting member 43. Specifically, one end of the link 43 is fixedly connected to the driving member 42, and the other end of the link 43 is fixedly connected to the locking member 3 on the corresponding side. The link 43 has elasticity.
The connecting member 43 includes a first connecting portion 431 and a second connecting portion 432 respectively located at both ends, and an intermediate connecting portion 433 connected between the first connecting portion 431 and the second connecting portion 432, wherein the first connecting portion 431 is fixedly connected to the driving member 42, the second connecting portion 432 is fixedly connected to the locking member 3, and when the locking mechanism is in the locking state, the intermediate connecting portion 433 is arc-shaped. In the connecting member 43, at least the intermediate connecting portion 433 has elasticity, and in this embodiment, the entire connecting member 43 is made of an elastic material having elasticity.
The child safety seat further includes an elastic member 5 for driving the driving member 42 to return after the locking mechanism is unlocked, in this embodiment, the elastic member is a spring, one end of the spring is disposed on the driving member 42, and the other end of the spring is disposed on the base 1. When the driving member 42 is returned, the connection between the driving member 42 and the locking member 3 is such that the operating member 41 and the locking member 3 are also returned to the position in which the locking mechanism is in the locked state by the cooperation between the driving member 42 and the operating member 41.
Of course, the driving member 42 and the left and right locking members 3 can be matched with each other, for example, the driving member 42 and the left and right locking members 3 are matched with each other through an inclined surface, so that when the driving member 42 slides forward relative to the base 1, the left and right locking members 3 are driven to slide and be released from the locking groove 21.
When the child safety seat is in use, the locking mechanism is in a locked state, as shown in fig. 1, 2, 5 and 6.
When the sitting posture of the seat needs to be adjusted, the unlocking mechanism is operated to unlock the locking mechanism, and the specific operation process is as follows: when the operating part 41 on any side is pulled to the outside of the base 1, for example, the operating part 413 on the operating part 41 on the right side is held to pull the operating part 41 outwards, the operating part 41 slides outwards, that is, rightwards relative to the base 1, the matching part 411 arranged on the operating part is driven to slide rightwards synchronously, and the driving part 42 slides forwards through the matching of the matching part 411 and the side wall of the first sliding chute 421. When the driving member 42 slides forward, the connecting members 43 on both sides are stretched to generate elastic deformation, and the connecting members 43 on both sides simultaneously pull the locking members 3 connected therewith to slide toward the direction close to the center of the base 1 until the locking members 3 on both sides are disengaged from the locking grooves 21, so that the locking mechanism is unlocked, and at this time, the angle between the base 1 and the housing 2 can be adjusted. When the driver 42 slides forward, the left engaging portion 411 slides leftward in the left second slide groove 412, while the left operating member 41 remains stationary. After the locking mechanism is unlocked, the engaging portion 411 on the right side is still located at one end portion close to the center of the base 1 in the second sliding groove 412 on the right side, and the engaging portion 411 on the left side is located at one end portion away from the center of the base 1 in the second sliding groove 412 on the left side, as shown in fig. 7 and 8.
When the angle between the base 1 and the housing 2 is adjusted to a proper position, the operating member 41 is released, the force of the engaging portion 411 on the sidewall of the first sliding slot 421 disappears, the driving member 42 slides backward under the elastic force of the elastic member 5, and in this process, the connecting members 43 on the left and right sides gradually return to the original shape and drive the locking member 3 connected thereto to slide in the direction of inserting into the locking slot 21. When the driving member 42 slides backward, the side wall of the first sliding slot 421 and the engaging portion 411 act to make the right engaging portion 411 drive the right operating member 41 to slide toward the center of the base 1, i.e. to the left, and the left engaging portion 411 also slides toward the center of the base 1, i.e. to the right, in the left second sliding slot 412 until the components slide to the position when the locking mechanism is in the locked state.
The above definitions of directions are all defined in terms of directions in which a child sits on the child safety seat after the child safety seat is mounted on the car seat in the forward direction, and the direction in which the face of the child faces is front and the direction in which the back of the child faces is rear.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.