Child car safety seat

Abstract

The present invention discloses a child car safety seat, wherein a head support is connected to a backrest pivot through a rotating shaft, the head support can rotate forward and backward around the rotating shaft, and the child car safety seat also includes a head support reset protection device, which plays a damping and / or limiting role on the backward movement of the head support body when the head support is rotated backward and reset. The child car safety seat is connected to the backrest so that the head support can rotate forward and backward, so that when a collision occurs, the head support is always protected at the periphery of the child's head and neck, and the head support reset protection device is additionally provided. In the process of the head rebounding after the collision, the head support reset protection device is compressed by force, absorbs the energy of the head, can effectively offset the impact force on the child's head and neck, prevents the child's neck from being injured, and greatly improves the child's riding safety.

Description

Technical Field

[0001] The invention relates to a child car safety seat, belonging to children's products. Background Art

[0002] A child car safety seat is a commonly used infant product, which includes a base, a seat mounted on the base, and a headrest connected to the seat. At present, when a child car safety seat is installed in a car for use, it is found that when the car encounters an accident such as sudden braking or collision, the child's body will move forward under the action of great inertia, and the child's head and neck will move forward with the upper body in an instant. Then, due to the action of the safety belt of the child car safety seat, the child's body will be pulled, and the child's head and neck will fall back and hit the headrest, which makes the child's head and neck very easy to be injured, causing damage to the joints and dislocation of the child's head and neck, and in severe cases, it will threaten the child's life. Summary of the invention

[0003] In order to solve the above problems, an object of the present invention is to provide a child car safety seat which can protect the child's neck when the car collides.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a child car safety seat, including a seat body for children to sit on, a backrest arranged at the rear of the seat body, and a headrest, the headrest is connected to the backrest pivot through a rotating shaft, and the headrest can rotate forward and backward around the rotating shaft, and the child car safety seat also includes a headrest reset protection device, which plays a damping and / or limiting role on the backward movement of the headrest when the headrest is rotated backward and reset. It should be noted that the front and rear directions of this application are defined according to the normal use habits of the child car safety seat. When a child sits in it, the direction facing the car is the front, and vice versa.

[0005] Further, the head support resetting protection device is located between the upper part of the head support and the backrest.

[0006] Furthermore, the head support has an initial position parallel to the extension direction of the backrest and an extreme position close to the backrest after being rotated backward and reset. When the head support is in the extreme position, it is farther away from the backrest than when it is in the initial position.

[0007] Furthermore, the headrest has a headrest main body located on the upper part of the backrest and a connecting part for connecting the backrest, which extends in the up and down direction, with its upper part connected to the headrest main body and its lower part rotatably connected to the lower part of the backrest through the above-mentioned rotating shaft.

[0008] Furthermore, the head support resetting protection device includes a gas spring.

[0009] Furthermore, the upper end of the gas spring is rotatably connected to the headrest, and the lower end is rotatably connected to the backrest so as to be movable up and down.

[0010] Furthermore, during the forward rotation of the headrest, the gas spring maintains its length and its lower end slides upward relative to the backrest; during the backward rotation and restoration of the headrest, the relative position between the lower end of the gas spring and the backrest is basically fixed, and the gas spring is compressed.

[0011] Furthermore, the backrest has a guide groove extending in the up-down direction, and the lower end of the gas spring has a connecting shaft perpendicular to the gas spring. The connecting shaft can rotate relative to the guide groove and can be slidably inserted in the guide groove along the extension direction of the guide groove.

[0012] Furthermore, the backrest is further provided with a limiting groove which is connected to the upper end of the guide groove and is located at the rear side of the guide groove. When the headrest body rotates backward, the connecting shaft is located in the limiting groove and abuts against the groove wall of the limiting groove.

[0013] Furthermore, the backrest is provided with a plurality of mounting parts along the up-and-down direction thereof, and the mounting parts are used to mount the rotating shaft. When the headrest is mounted on the backrest, the rotating shaft is mounted at one of the plurality of mounting parts.

[0014] By adopting the above technical scheme, the child car safety seat of the present invention connects the head support and the backrest so that they can rotate forward and backward. When a collision occurs, the head support is always protected at the periphery of the child's head and neck, and a head support resetting protection device is additionally provided. During the process of the head rebounding after the collision, the head support resetting protection device is compressed by force and absorbs the energy of the head, which can effectively offset the impact force on the child's head and neck, prevent the child's neck from being injured, and greatly improve the child's riding safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 It is a schematic diagram of the disassembled structure of the child car safety seat of the present invention;

[0016] Attached Figure 2 It is a schematic diagram of the side section structure of the child car safety seat of the present invention in the initial state;

[0017] Attached Figure 3 It is a schematic side sectional structure diagram of the child car safety seat of the present invention in a following state after a collision occurs;

[0018] Attached Figure 4 It is a schematic diagram of the side section structure of the child car safety seat of the present invention during the transition process from the following state to the reset state;

[0019] Attached Figure 5 The figure is a schematic side sectional structure diagram of the child car safety seat of the present invention when the head support is in the extreme position (reset state) when rotating backward.

[0020] Structural diagram.

[0021] The numbers in the figure are:

[0022] 1. Seat body; 2. Backrest; 21. Mounting slot; 22. Guide slot; 23. Limiting slot; 3. Headrest; 30. Headrest body; 31. Support part; 32. Headrest wing part; 33. Connecting part; 4. Gas spring; 41. Connecting shaft; 5. Backrest wing; 100. Rotating shaft. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0024] Reference Figure 1 To Attachment Figure 5 The child car safety seat in this embodiment includes a seat body 1 for a child to sit on, a backrest 2 and a headrest 3 arranged at the rear of the seat body 1. The seat body 1 is provided with armrests (not shown in the drawings) on both sides, and the backrest 2 is provided with backrest wings 5 ​​and a safety belt (not shown in the drawings) on both sides. The backrest wings 5 ​​extend forward from the backrest 2.

[0025] The head support 3 is pivotally connected to the backrest 2 via a rotating shaft 100, and the head support 3 can rotate forward and backward relative to the backrest 2. The head support 3 has a head support body 30 located on the upper part of the backrest 2 and a connecting portion 33 for connecting the backrest 2. The head support body 30 includes a support portion 31, and head support wings 32 arranged on the left and right sides of the support portion 31 and extending forward. The head support body 30 is a protective body for protecting the head and neck of children. The specific manufacturing method is to fill and cover a rigid support with a soft material (such as sponge, etc.), and the above-mentioned support portion 31 and the head support wing 32 both have the rigid support.

[0026] The connection part 33 in this embodiment is plate-shaped. Preferably, the connection part 33 extends in the up-down direction, and its upper part is connected to the headrest body 30, and its lower part is rotatably connected to the lower part of the backrest 2 through the rotating shaft 100. Specifically, the rotating shaft 100 extends in the left-right direction so that the headrest 3 can rotate forward and backward around the axis of the rotating shaft 100. The connection part 33 is rigid, and its upper part is connected to the above-mentioned rigid bracket. The connection part 33 can be formed integrally with the rigid bracket, or can be fixedly connected later.

[0027] The child car safety seat further comprises a head support resetting protection device, which plays a damping and / or limiting role on the backward movement of the head support 3 when the head support 3 is rotated backward to be reset.

[0028] The head support resetting protection device is located between the head support 3 and the backrest 2. Specifically, the head support resetting protection device is connected to a position between the head support body 30 and the backrest 2, and the head support resetting protection device is connected to the upper part of the connecting portion 33. The backrest 2 is provided with a plurality of mounting portions along its up and down directions, and the mounting portions are used to mount the rotating shaft 100. When the head support 3 is mounted on the backrest 2, the rotating shaft 100 is mounted at one of the plurality of mounting portions. In the present embodiment, the mounting portion is a mounting groove 21 provided on the backrest 2, and the mounting groove 21 is U-shaped, with the opening of the mounting groove 21 facing backward. A plurality of mounting grooves 21 are arranged from top to bottom on the backrest 2. When the head support 3 is mounted on the backrest 2, the rotating shaft 100 is mounted at one of the plurality of mounting grooves 21. The rotating shaft 100 is inserted into the mounting groove 21 from the opening of the mounting groove 21, and the rotating shaft 100 can rotate around its own axis in the mounting groove 21. The height of the head support 2 can be adjusted by adjusting the position of the rotating shaft 100 to accommodate children of different ages and heights.

[0029] In a more preferred embodiment, the headrest 3 has an initial position and an extreme position. When the headrest 3 is in the initial position, it is parallel to the extension direction of the backrest 2. When the headrest 3 is in the extreme position, it is in a position close to the backrest 2 after being rotated backward and reset. When the headrest 3 is in the extreme position, it is farther away from the backrest 2 than when it is in the initial position. Further explanation: During the entire process of the collision, the headrest 3 has at least an initial state, a following state and a reset state. When it is in the initial state, the headrest body 30 is close to the backrest 2, that is, the initial position of forward rotation; when the headrest 3 is in the following state, the headrest 3 rotates forward and the headrest body 30 is away from the backrest 2; when the headrest 3 is in the reset state, the headrest 3 rotates backward and the headrest body 30 is close to the backrest 2, that is, the extreme position of backward rotation. In the reset state, the headrest body 30 is farther away from the backrest 2 than in the initial state, so that the headrest body 30 in the reset state ensures that the child's head does not exceed the DE plane. The DE plane refers to the plane where the backrest is located under normal circumstances. When a collision occurs, due to the inertia of rebound, the child's head will sink into the soft material covering the headrest, causing damage to the neck. In the design of this example, the headrest 3 does not completely return to the position in the initial state when it is reset, but moves forward relative to the initial state, thereby ensuring that the child's head does not exceed the DE plane.

[0030] The head support resetting protection device includes a gas spring 4. In the present embodiment, the upper end of the gas spring 4 is rotatably connected to the head support 3, and the lower end is rotatably connected to the backrest 2 and is relatively movable up and down. During the forward rotation of the head support 3, the gas spring 4 maintains its length, and its lower end slides upward relative to the backrest 2; during the backward rotation and resetting of the head support 3, the relative position between the lower end of the gas spring 4 and the backrest 2 is basically fixed, and the gas spring 4 is compressed. It should be noted that due to the limitations of the mechanical structure principles and manufacturing processes in the prior art, when the head support 3 rotates backward, the lower end of the gas spring 4 and the backrest 2 cannot be completely fixed and remain motionless, and there will be a slight relative movement between the two, so it is said here that the relative position between the two is "basically" fixed.

[0031] In this embodiment, the specific connection structure between the lower end of the gas spring 4 and the backrest 2 is as follows: the backrest 2 has a guide groove 22 extending in the up-down direction, and the lower end of the gas spring 4 has a connecting shaft 41 perpendicular to the gas spring 4. The connecting shaft 41 can rotate relative to the guide groove 22 and can be slidably inserted in the guide groove 22 along the extension direction of the guide groove 22.

[0032] The backrest 2 also has a limiting groove 23 connected to the upper end of the guide groove 22 and located at the rear side of the guide groove 22. During the backward rotation of the head support body 30, the connecting shaft 41 is located in the limiting groove 23 and abuts against the groove wall of the limiting groove 23. In this embodiment, the limiting groove 23 extends backward and downward from the upper end of the guide groove 22. Since its function is mainly to limit the lower end of the gas spring 4, it is ensured that during the backward rotation of the head support body 30, the relative position between the lower end of the gas spring 4 and the backrest 2 is basically fixed. Specifically, the connecting shaft 41 abuts against the groove wall of the limiting groove 23 at the other end opposite to the end connected to the guide groove 22.

[0033] Working principle:

[0034] Before a collision occurs, that is, when the car is moving smoothly, the child car safety seat should be attached Figure 2 As shown, the headrest 3 is in the initial state, close to the backrest 2, and the connecting shaft 41 at the lower end of the gas spring 4 is located at the lower end of the guide groove 22; when a collision occurs, such as the attached Figure 3 As shown, the head support 3 rotates forward around the rotating shaft 100, and the head support body 30 moves forward with the child's head, that is, the head support 3 transitions from the initial state to the following state. During the process, the head support body 30 always covers the child's head well. When the head support 3 rotates to a position away from the backrest 2, that is, in the following state, the connecting shaft 41 of the gas spring 4 moves upward along the guide groove 22 to the upper end, that is, the connection between the guide groove 22 and the limiting groove 23; then the child's head rebounds, and the energy of the rebound drives the head support 3 to rotate backward, and the head support 3 transitions from the following state to the reset state, as shown in the attached figure. Figure 4As shown, the connecting shaft 41 of the gas spring 4 enters the limit groove 23 without sliding, and the gas spring 4 begins to be compressed to absorb the energy of the child's head rebounding; Figure 5 As shown, the head support 3 rotates to a position close to the backrest 2, that is, it is in a reset state, the gas spring 4 is compressed to the shortest, and the head support 3 reaches the limit position, which is farther away from the backrest 2 relative to the initial position, ensuring that the child's head does not exceed the DE plane.

[0035] The child car safety seat is connected to the head support and the backrest so that they can rotate forward and backward. When a collision occurs, the head support is always protected at the periphery of the child's head and neck. In addition, a head support resetting protection device is provided. When the head rebounds after the collision, the head support resetting protection device is compressed and absorbs the energy of the head, which can effectively offset the impact force on the child's head and neck, prevent the child's neck from being injured, and greatly improve the child's riding safety.

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A child car safety seat, comprising a seat body (1) for a child to sit on, a backrest (2) arranged at the rear of the seat body (1), and a headrest (3), characterized in that: The headrest (3) is pivotally connected to the backrest (2) via a rotating shaft (100), and the headrest (3) is capable of rotating forward and backward around the rotating shaft (100). The head support (3) has at least an initial state, a following state and a reset state. When it is in the initial state, the head support (3) is close to the backrest (2), and the head support (3) is in an initial position parallel to the extension direction of the backrest (2); when an impact occurs, the head support (3) transitions from the initial state to the following state, and the head support (3) rotates forward following the child's head; when the head support (3) is in the following state, the head support (3) rotates to a position away from the backrest (2); then the child's head rebounds, and the energy of the rebound drives the head support (3) to rotate backward, and the head support (3) transitions from the following state to the reset state; when the head support (3) is in the reset state, the head support (3) is in an extreme position close to the backrest (2) after rotating backward and resetting, and when the head support (3) is in the extreme position, it is farther away from the backrest (2) than when it is in the initial position; The child car safety seat further comprises a head support resetting protection device, the head support resetting protection device being located between the upper portion of the head support (3) and the backrest (2), the head support resetting protection device being configured to provide a damping force to prevent the head support (3) from rotating backward and / or to limit the displacement of the head support (3) moving backward when the head support (3) is rotated backward and reset.

2. The child car safety seat according to claim 1, characterized in that: The headrest (3) comprises a headrest main body (30) located on the upper part of the backrest (2) and a connecting portion (33) for connecting to the backrest (2); the connecting portion (33) extends in the up-down direction, with its upper portion connected to the headrest main body (30) and its lower portion rotatably connected to the lower portion of the backrest (2) via the rotating shaft (100).

3. The child car safety seat according to claim 1, characterized in that: The head support resetting protection device comprises a gas spring (4).

4. The child car safety seat according to claim 3, characterized in that: The upper end of the gas spring (4) is rotatably connected to the headrest (3), and the lower end is rotatably connected to the backrest (2) so as to be movable up and down.

5. The child car safety seat according to claim 4, characterized in that: During the process of the headrest (3) rotating forward, the gas spring (4) maintains its length, and its lower end slides upward relative to the backrest (2); during the process of the headrest (3) rotating backward to return to its original position, the relative position between the lower end of the gas spring (4) and the backrest (2) is basically fixed, and the gas spring (4) is compressed.

6. The child car safety seat according to claim 3, characterized in that: The backrest (2) has a guide groove (22) extending in the up-down direction, and the lower end of the gas spring (4) has a connecting shaft (41) perpendicular to the gas spring (4), and the connecting shaft (41) can rotate relative to the guide groove (22) and can be inserted into the guide groove (22) in a sliding manner along the extension direction of the guide groove (22).

7. The child car safety seat according to claim 6, characterized in that: The backrest (2) further comprises a limiting groove (23) which is connected to the upper end of the guide groove (22) and is located at the rear side of the guide groove (22); the head support (3) comprises a head support body (30) located at the upper part of the backrest (2) and a connecting part (33) for connecting to the backrest (2); when the head support body (30) rotates backward, the connecting shaft (41) is located in the limiting groove (23) and abuts against the groove wall of the limiting groove (23).

8. The child car safety seat according to claim 1, characterized in that: The backrest (2) is provided with a plurality of mounting parts along its upper and lower directions, the mounting parts being used to mount the rotating shaft (100); when the headrest (3) is mounted on the backrest (2), the rotating shaft (100) is mounted at one of the plurality of mounting parts.

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