WO2019242201A1

WO2019242201A1 - Child seat for facilitating headrest adjustment

Info

Publication number: WO2019242201A1
Application number: PCT/CN2018/113936
Authority: WO
Inventors: 赖威廷; 王季中; 时青
Original assignee: 苏州纪宝儿童用品有限公司
Priority date: 2018-06-22
Filing date: 2018-11-05
Publication date: 2019-12-26
Also published as: CN108657034A

Abstract

A child seat for facilitating headrest adjustment, comprising a base, a basket (1) and a headrest (2), wherein the headrest is slidably mounted in the basket by means of an adjusting device, the adjusting device comprises a positioning member (3), a connecting member (4) and locking rods (5), the positioning member is fixedly mounted onto the basket, the connecting member is mounted on a bottom portion of the headrest, a bottom surface of the connecting member is provided thereon with clamping grooves (6), middle portions of the locking rods are clamped in the clamping grooves, and an outer edge surface of a bottom portion of the locking rods is exposed at a bottom portion of the connecting member; the positioning member is a U-shaped structure comprising a bottom plate (7) and side plates (8) disposed on two sides of the bottom plate, the side plates are each provided thereon with a strip-shaped limiting slot (9), and two ends of the locking rods are slidably arranged in the strip-shaped limiting slots of the side plates of the two sides; the bottom plate is provided thereon with a plurality of groups of elastic limiting members (10), limiting cavities (11) are formed between adjacent elastic limiting members, and the locking rods are disposed in the limiting cavities, thereby improving the convenience of headrest adjustment.

Description

Child seat for easy headrest adjustment

Technical field

The invention relates to a child seat, in particular to a child seat which facilitates adjustment of a headrest.

Background technique

The child seat is mainly used to be installed on a car seat for children to use in order to protect children's personal safety. At present, child seats have been increasingly used, and various child seats are sold in the market. In order to adapt the child seat to children of different heights, the height of the headrest on the child seat is usually adjustable up and down, but the existing child seat has a complicated structure for adjusting the headrest, which is difficult to install and the adjustment of the headrest Very inconvenient. Therefore, how to solve the above technical problems is the direction that those skilled in the art need to work hard.

Summary of the Invention

The purpose of the present invention is to provide a child seat that facilitates adjustment of the headrest, and by using the structure, the convenience of adjusting the position of the headrest is improved.

In order to achieve the above object, the technical solution adopted by the present invention is: a child seat that is convenient for adjusting the headrest, including a base, a basket and a headrest, and the bottom of the basket is snap-fitted on the base, and the basket and the The base is a separable structure, and the headrest is slidably installed in the basket via an adjusting device, the adjusting device includes a positioning member, a connecting member, and a lock lever, and the positioning member is fixedly installed on the basket. The top of the connecting piece is fixedly installed on the bottom of the headrest. A semi-circular locking groove is provided on the bottom surface of the connecting piece. The middle of the locking lever is locked in the locking groove. The outer edge surface of the bottom of the lock lever is exposed from the bottom of the connecting member; the positioning member is a U-shaped structure, and includes a bottom plate and side plates disposed on both sides of the bottom plate, the bottom plate being installed on the basket, the A side plate is disposed perpendicular to the bottom plate, a side of the side plate is provided with a shape-limiting groove, and both ends of the lock lever are slidably arranged in the bar-shaped limit grooves of the side plate on both sides; A complex array of elastic limiters is provided on the bottom plate, The elastic stopper is evenly installed on the bottom plate from bottom to top, a limit cavity is formed between adjacent elastic stoppers, and the lock lever is disposed in the limit cavity to push the headrest. The headrest drives the connecting member and the lock lever to move in the strip-shaped limit groove, and the lock lever can compress the elastic limit member, so that the lock lever moves to an adjacent limit space. Cavity.

In the above technical solution, the elastic limit member includes a spring and a limit ball, and the bottom plate is provided with a plurality of limit holes, and a diameter of a top opening of the limit hole is 1 of a diameter of the limit ball. / 2 to 4/5, the inside diameter of the limiting hole is greater than or equal to the diameter of the limiting ball, the spring and the limiting ball are disposed in the limiting hole, and the bottom of the spring Abutting against the bottom of the limit hole, the top of the spring is against the bottom outer edge surface of the limit ball, and the top outer surface of the limit ball is exposed on the top of the limit hole Outside.

In the above technical solution, the limiting hole is a stepped limiting hole, the limiting hole includes an upper hole and a lower hole coaxially arranged, the upper hole is in communication with the top surface of the bottom plate, and the upper hole The diameter is 1/2 to 4/5 of the diameter of the limit rolling ball, the diameter of the lower hole is greater than or equal to the diameter of the limit rolling ball, the spring is disposed in the lower hole, and the spring The bottom of the lower hole is against the bottom surface of the lower hole, the top surface of the spring is against the outer edge surface of the bottom of the limit rolling ball, and the spring causes the limit rolling ball to be disposed between the upper hole and the lower Where the holes meet.

In the above technical solution, the depth of the upper hole is 1/6 to 1/2 of the diameter of the limit rolling ball.

In the above technical solution, the bottom of the position-limiting hole is in communication with the bottom surface of the bottom plate, and an inner thread is provided on the inner edge surface of each position-limiting hole. A positioning post, the positioning post being screwed into the limiting hole via the internal thread, and a bottom of the spring abutting on a top surface of the positioning post.

In the above technical solution, a protrusion is provided on the top of the positioning post, a cross lock groove is provided on the bottom surface of the positioning post, the protrusion is sleeved on the bottom of the spring, and the top of the spring is against The diameter of the spring on the outer edge surface of the bottom of the limit ball is 1/2 to 3/4 of the diameter of the limit ball.

In the above technical solution, the width of the strip-shaped limiting groove matches the diameter of the lock lever, and two ends of the lock lever are respectively provided with a limit nut, and the diameter of the limit nut is larger than the strip The width of the limiting groove, and the limiting nut is disposed outside the side plate.

In the above technical solution, the lock lever is clamped in the engaging groove, and the outer edge surface of the bottom of the lock lever abuts on the top surface of the bottom plate.

Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

1. In the present invention, the connecting member can slide up and down on the positioning member through the locking lever, and by providing multiple sets of elastic limiters on the bottom plate of the positioning member, when the headrest is adjusted, the headrest is strongly pushed, and the locking lever is not only Capable of compressing the elastic limiter, allowing the lock lever to move into the adjacent limit cavity through the elastic limiter, enabling quick and convenient adjustment of the headrest, and simple structure, more convenient installation and lower cost;

2. In the present invention, the elastic limit member is made of a limit ball and a spring. When the lock lever moves, the lock lever squeezes the limit ball, and the limit ball can squeeze the spring, so that the lock lever can quickly After the limit ball moves, after the movement is completed, the spring is restored, which can drive the limit ball to rise. In this way, the limit ball can achieve the limit of the lock rod and ensure the convenience of adjustment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention;

FIG. 2 is a partially enlarged view of FIG. 1;

3 is a schematic structural diagram of a positioning member in Embodiment 1 of the present invention;

FIG. 4 is a schematic structural diagram of a connection between a connecting member and a lock lever in Embodiment 1 of the present invention.

Among them: 1. Basket; 2. Headrest; 3. Positioning piece; 4. Connection piece; 5. Lock lever; 6. Snap slot; 7. Base plate; 8. Side plate; 9. Strip-shaped limit groove; 10 Elastic limit pieces; 11, limit cavity; 12, spring; 13, limit ball; 14, limit hole; 15, upper hole; 16, lower hole; 17, positioning column; 18, raised; 19, cross lock groove; 20, through hole; 21, limit nut.

detailed description

The invention is further described below with reference to the drawings and embodiments:

Embodiment 1: Referring to FIGS. 1-4, a child seat for adjusting the headrest includes a base, a basket 1 and a headrest 2 (the base is not shown). The bottom of the basket 1 is snap-fitted to the seat. On the base, the basket 1 and the base are in a separable structure, and the headrest 2 is slidably installed in the basket 1 via an adjusting device. The adjusting device includes a positioning member 3, a connecting member 4, and a lock lever 5. The positioning member 3 is fixedly installed on the basket 1, the top of the connecting member 4 is fixedly installed on the bottom of the headrest 2, and a semi-circular structure locking slot is provided on the bottom surface of the connecting member 4. 6. The middle portion of the lock lever 5 is latched in the latching groove 6, and the outer edge surface of the bottom of the lock lever 5 is exposed at the bottom of the connecting member 4. The positioning member has a U-shaped structure. It includes a bottom plate 7 and side plates 8 provided on both sides of the bottom plate 7, the bottom plate 7 is mounted on the basket 1, the side plate 8 is disposed perpendicular to the bottom plate 7, and the side plates 8 on both sides are respectively provided A strip-shaped limiting groove 9 is provided, and two ends of the lock lever 5 are slidably disposed in the strip-shaped limiting grooves 9 of the side plates 8 on both sides; a complex array of bombs is arranged on the bottom plate 7 The elastic limiter 10 is installed on the bottom plate 7 uniformly from bottom to top, and a limiting cavity 11 is formed between adjacent elastic limiters 10, and the lock lever 5 is provided at In the limiting cavity 11, the headrest 2 is pushed, and the headrest 2 drives the connecting member 4 and the lock lever 5 to move in the strip-shaped limiting groove 9, and the lock lever 5 The elastic limiting member 10 can be compressed, so that the lock lever 5 can move in the adjacent limiting cavity 11.

In this embodiment, the use of the headrest needs to be adjusted. The headrest is pushed hard. Because the connection member is connected to the headrest, that is, the connection member is pushed hard to move. At the same time, the lever moves the lock lever. When the lock lever touches the elastic limit member, due to the thrust, the lock lever will squeeze the elastic limit member and press the elastic limit member down, so that the lock lever can pass the elastic limit smoothly. After passing the position piece, the elastic limit piece returns to its original state due to the loss of the pressing force of the lock lever, and continues to play a role of limiting the position limit bar. In this way, if the headrest is not pushed with force, the elastic limiter will limit the lock lever, that is, the headrest. In this embodiment, the adjustment method of the headrest is convenient and quick, and the structure is simple.

As shown in FIGS. 1 and 2, the elastic limiting member 10 includes a spring 12 and a limiting ball 13. The bottom plate 7 is provided with a plurality of limiting holes 14. The diameter of the top opening of the limiting hole 14 is The diameter of the limiting ball 13 is 1/2 to 4/5, the internal diameter of the limiting hole 14 is greater than or equal to the diameter of the limiting ball 13, the spring 12 and the limiting ball 13 It is disposed in the limiting hole 14, the bottom of the spring 12 abuts against the bottom of the limiting hole 14, and the top of the spring 12 abuts on the outer edge surface of the bottom of the limiting ball 13. The top outer edge surface of the limiting ball 13 is exposed outside the top of the limiting hole.

The limiting hole 14 is a stepped limiting hole. The limiting hole 14 includes an upper hole 15 and a lower hole 16 which are coaxially arranged. The upper hole 15 is in communication with the top surface of the bottom plate 7. The diameter of 15 is 1/2 to 4/5 of the diameter of the limit rolling ball 13, the diameter of the lower hole 16 is greater than or equal to the diameter of the limit rolling ball 13, and the spring 12 is disposed on the lower In the hole 16, the bottom of the spring 12 abuts on the bottom surface of the lower hole 16, and the top surface of the spring 12 abuts on the outer edge surface of the bottom of the limit ball 13, and the spring 12 makes the The position-limiting ball 13 is disposed at a position where the upper hole 15 and the lower hole 16 meet.

The depth of the upper hole is 1/6 to 1/2 of the diameter of the limit rolling ball.

In this embodiment, the lock lever has a cylindrical structure. When the headrest does not move, that is, in a normal use state, the lock lever is between adjacent limit rolling balls. Due to the existence of the spring, the spring will limit the limit. The ball is lifted upwards, so that the top of the limit ball is exposed on the top surface of the bottom plate, that is, a limit cavity is formed between adjacent limit balls, which can limit the lock lever. When the headrest needs to move, push the headrest, that is, push the lock lever hard. Take the lock lever moving upward as an example, the lock lever moves upward. When the lock lever touches the limit ball, because the lock lever has an upward force, The lock lever will squeeze the limit ball. While the limit ball is squeezed, the limit ball squeezes the spring to press down the spring. In this process, the lock lever will push the limit ball to the limit hole. Inside, after the lock rod passes the limit ball smoothly, the limit ball no longer receives the pressing force of the lock rod, so that the spring returns to its original state, and the limit ball is lifted up so that it is exposed on the top surface of the bottom plate , To limit the role of the lock lever. Among them, the diameter of the upper hole is 1/2 to 4/5 of the diameter of the limit ball, so that the top of the limit ball can be exposed on the top surface of the bottom plate, but cannot be rolled out of the limit hole, which effectively realizes Limiting effect on the lock lever.

As shown in FIGS. 1 and 2, the bottom of the limit hole 14 is in communication with the bottom surface of the bottom plate 7, and an inner thread is provided on the inner edge surface of each of the limit holes 14. A positioning post 17 is screwed to the bottom of the hole 14. The positioning post 17 is screwed into the limiting hole 14 via the internal thread. The bottom of the spring 12 abuts on the top surface of the positioning post 17.

A protrusion 18 is provided on the top of the positioning post 17, a cross lock groove 19 is provided on the bottom surface of the positioning post 17, and the protrusion 18 is sleeved on the bottom of the spring 12. The top of the spring 12 is The diameter of the spring 12 abuts the outer edge surface of the bottom of the limit ball 13, and the diameter of the spring 12 is 1/2 to 3/4 of the diameter of the limit ball 13.

In this embodiment, the internal thread is set in the lower hole, and the limit hole is set to facilitate the installation of the limit ball, and then the positioning post is set to facilitate the limit and installation of the spring. Setting, easy to limit the spring. When installing limit ball and spring. Put the limit ball into the lower hole first, then cover the spring on the protrusion, and then screw the positioning post into the limit hole to make the spring against the limit ball to support the limit ball And limits.

In this embodiment, a plurality of through-holes 20 are provided at the bottom of the basket 1, and each through-hole is disposed opposite a limiting hole, that is, each through-hole is disposed directly against a positioning post. Because the top of the spring is against the outer edge of the bottom of the limit ball and the bottom is against the top surface of the positioning post, the greater the distance between the top surface of the positioning post and the bottom of the limit ball, that is, the elastic deformation of the spring The larger the margin, that is, the smaller the limit force on the lock lever, and the smaller the distance between the top surface of the positioning column and the bottom of the limit ball, the smaller the elastic deformation margin is, the more elastic the spring is. Large, that is, the limit of the limit ball to the locking lever is greater. In this way, in actual use, the user can insert a screwdriver through the through hole, insert the screwdriver into the cross lock groove, and rotate the positioning post to adjust the distance between the top surface of the positioning post and the bottom surface of the limit ball, so as to adjust the spring Deformation margin, that is, adjusting the force required for headrest movement to adjust to the most suitable force for the user. In this way, the user experience is better and easier to adjust. At the same time, under normal circumstances, the height of a child of a certain age does not change much over a long period of time. After adjusting the headrest to a set position, the positioning post adjacent to the lock hook is adjusted, that is, the spring is further compressed, so that The spring does not have a margin for compression and deformation again, so that the headrest cannot squeeze the limit ball no matter how hard it is used, that is, the spring cannot be squeezed, so that the headrest can be locked. If adjustment is needed, the positioning column Loosen it a little to increase the deformation margin of the spring, so that the headrest can be adjusted.

As shown in FIGS. 1 to 4, the width of the strip-shaped limiting groove 9 matches the diameter of the locking lever 5, and two ends of the locking lever 5 are respectively provided with a limiting nut 21. The limiting nut The diameter is larger than the width of the strip-shaped limiting groove, and the limiting nut is disposed outside the side plate.

The locking lever is clamped in the engaging groove, and the outer edge surface of the bottom of the locking lever abuts the top surface of the bottom plate.

In this embodiment, the connecting member is a connecting block, and the connecting member can move in the U-shaped groove of the positioning member. The bottom of the connecting member adopts a semi-circular structure locking slot, so that a part of the lock lever can be restricted by the connecting member. Position, that is, the lock lever cannot move up and down on the connecting member, and the lock lever can only move up and down with the connecting member. During the installation process, the connection block is directly connected to the headrest by screws, and the positioning member is also connected to the basket by bolts. When the headrest and the basket are assembled, the connection member is directly inserted into the U-shaped groove of the positioning member, and then the lock lever is removed from Insert the strip-shaped limit groove of one side plate, then insert it into the snap-in groove, and then insert it into the strip-shaped limit groove of the other side plate, and finally use the limit nut to limit both ends of the lock lever. Prevent the lock lever from falling out of the clamping slot and the strip-shaped limiting slot.

In this embodiment, the manufacturing method of the connection block, the positioning block, the elastic stopper, and the lock lever is simple, the cost is low, and the assembly is simple.

Claims

A child seat for facilitating the adjustment of a headrest includes a base, a basket and a headrest. The bottom of the basket is snap-fitted on the base, the basket and the base are separable structures, and the headrest is adjusted by The device is slidably installed in the basket, and is characterized in that the adjusting device includes a positioning member, a connecting member, and a lock lever, the positioning member is fixedly mounted on the basket, and the top of the connecting member is fixedly mounted on the basket. At the bottom of the headrest, a semi-circular-shaped engaging groove is provided on the bottom surface of the connecting member, the middle portion of the locking lever is engaged in the engaging groove, and the outer edge surface of the bottom of the locking lever is exposed At the bottom of the connecting member; the positioning member is a U-shaped structure, including a bottom plate and side plates disposed on both sides of the bottom plate, the bottom plate is installed on the basket, and the side plate is disposed perpendicular to the bottom plate, A strip-shaped limiting groove is provided on each of the side plates on both sides, and two ends of the lock lever are slidably disposed in the strip-shaped limiting grooves of the side plates on both sides; a complex array of elastic limits is provided on the bottom plate Position pieces, multiple sets of elastic limit pieces are evenly installed from bottom to top On the bottom plate, a limiting cavity is formed between adjacent elastic limiting members, and the lock lever is disposed in the limiting cavity to push the headrest, and the headrest drives the connecting member and The lock lever moves in the strip-shaped limit groove, and the lock lever can compress the elastic limit piece, so that the lock lever moves in an adjacent limit cavity.
The child seat for facilitating headrest adjustment according to claim 1, characterized in that: the elastic stopper comprises a spring and a stop ball, and the bottom plate is provided with a plurality of stop holes, and the stop The diameter of the top opening of the hole is 1/2 to 4/5 of the diameter of the limit rolling ball, the internal diameter of the limit hole is greater than or equal to the diameter of the limit rolling ball, the spring and the limit rolling A ball is disposed in the limit hole, the bottom of the spring is abutted against the bottom of the limit hole, the top of the spring is abutted on the outer edge surface of the bottom of the limit ball, and the limit roller The outer edge surface of the top of the ball is exposed outside the top of the limiting hole.
The child seat for facilitating headrest adjustment according to claim 2, wherein the limiting hole is a stepped limiting hole, and the limiting hole comprises an upper hole and a lower hole coaxially arranged, and the upper hole The hole is in communication with the top surface of the bottom plate, the diameter of the upper hole is 1/2 to 4/5 of the diameter of the limit ball, and the diameter of the lower hole is greater than or equal to the diameter of the limit ball The spring is disposed in the lower hole, the bottom of the spring is against the bottom surface of the lower hole, the top surface of the spring is against the outer edge surface of the bottom of the limit ball, and the spring The position-limiting ball is arranged at a contact point between the upper hole and the lower hole.
The child seat for facilitating headrest adjustment according to claim 3, wherein the depth of the upper hole is 1/6 to 1/2 of the diameter of the limit ball.
The child seat for facilitating headrest adjustment according to claim 2, characterized in that the bottom of the limiting hole is in communication with the bottom surface of the bottom plate, and an inner edge surface of each of the limiting holes is provided Internal thread, a positioning post is screwed to the bottom of each of the limit holes, the positioning post is screwed into the limit hole through the internal thread, and the bottom of the spring is abutted against the top of the positioning post Surface.
The child seat for facilitating headrest adjustment according to claim 5, characterized in that: a protrusion is provided on the top of the positioning post, a cross lock groove is provided on the bottom surface of the positioning post, and a bottom cover of the spring The protrusion is provided, the top of the spring abuts on the outer edge surface of the bottom of the limit rolling ball, and the diameter of the spring is 1/2 to 3/4 of the diameter of the limit rolling ball.
The child seat for facilitating headrest adjustment according to claim 1, characterized in that the width of the strip-shaped limiting groove matches the diameter of the lock lever, and two ends of the lock lever are respectively provided with a limit A position nut, the diameter of the position limiting nut is greater than the width of the strip-shaped position limiting groove, and the position limiting nut is disposed outside the side plate.
The child seat for facilitating headrest adjustment according to claim 1, characterized in that: the lock lever is latched in the locking groove, and the outer edge surface of the bottom of the lock lever abuts against the top of the bottom plate Surface.