A rotatable base for a child safety seat

Abstract

The utility model belongs to the technical field of children's seat, specifically is a rotatable base's car children's safety seat, including chassis, the inside wall of chassis is fixedly connected with motor, motor output is provided with the external gear wheel disc, the top of chassis is provided with base pad, base pad bottom is fixedly connected with the rolling bearing, the inside wall of rolling bearing is fixedly connected with the internal gear wheel disc, the external gear wheel disc and internal gear wheel disc are meshed connection, the both ends of base pad are symmetrically provided with the connecting groove, the side wall of connecting groove is fixedly connected with the slide rail, the both ends of slide rail are provided with the swallow -tailed groove, through the slide rail mechanism that sets up, realizes the short -distance displacement of seat chair, expands its activity space in the back seat of car, promotes the radius range of rotation, thereby increases the left operation space when holding or placing children, promotes the flexibility and safety of operation.

Description

Technical Field

[0001] This utility model belongs to the field of child seat technology, specifically a car child safety seat with a rotatable base. Background Technology

[0002] A car child safety seat is a seat designed specifically for children of different weights (or age groups) and installed in a car to effectively improve children's safety while riding in the vehicle.

[0003] A car child safety seat with a rotating base is a car safety device designed to make it easier for children to get in and out of the car, as well as to improve riding comfort and safety.

[0004] In daily use, because the seat is against the rear seat, when the seat is rotated to the opposite side of the car door, the left side of the seat is close to the rear seat, and the space is cramped, while the right side of the seat has more space. When picking up or placing a child, the left side is restricted by the space, and adults cannot flexibly extend their arms, resulting in uneven force on the left side. This can lead to instability when picking up or placing a child, thus creating a safety hazard. Therefore, a car child safety seat with a rotating base is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a car child safety seat with a rotatable base.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A car child safety seat with a rotatable base, comprising a chassis; a motor fixedly connected to the inner wall of the chassis; an external gear disk provided at the output end of the motor; a base pad provided above the chassis; a rolling bearing fixedly connected to the bottom end of the base pad; an internal gear disk fixedly connected to the inner wall of the rolling bearing; the external gear disk and the internal gear disk being meshed; symmetrical connecting grooves provided at the end of the base pad; a slide rail fixedly connected to the side wall of the connecting groove; a dovetail groove provided at the end of the slide rail; a dovetail slider slidably connected to the side wall of the dovetail groove; a seat back provided at the end of the base pad; a handle rotatably connected to the bottom end of the seat back; and the dovetail slider being fixedly connected to the seat back.

[0007] Preferably, a positioning block is fixedly connected to the side wall of the dovetail slider; a spring is fixedly connected to the inner side wall of the positioning block; a positioning pin is fixedly connected to the end of the spring; a positioning pin is slidably connected to the inner side wall of the positioning block; a positioning plate is fixedly connected to the inner side wall of the dovetail slider; and a rubber ring is fixedly connected to the inner side wall of the positioning plate.

[0008] Preferably, an electric push rod is fixedly connected to the side wall of the connecting groove; a sliding hole is opened on the side wall of the dovetail slider; the output end of the electric push rod slides on the side wall of the sliding hole; a ring is fixedly connected to the output end of the sliding hole; the ring and the dovetail slider are fixedly connected.

[0009] Preferably, a reset block is fixedly connected to the end of the slide rail; a steel rubber rod is fixedly connected to the side wall of the dovetail slider; and a steel rubber rod is slidably connected to the inner side wall of the reset block.

[0010] Preferably, multiple sets of rubber pads are fixed to the end of the base pad; the end of each rubber pad is provided with a polytetrafluoroethylene pad.

[0011] Preferably, a rubber sheet is fixed to the end of the base pad.

[0012] Preferably, a control button is provided on the side wall of the chassis; the control button is electrically connected to the motor and the electric push rod.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a car child safety seat with a rotatable base. Through the set sliding rail mechanism, the seat can be moved a short distance, expanding its activity space in the back seat of the car and increasing the range of rotation radius. This increases the left-side operating space when picking up or placing a child, improving the flexibility and safety of operation.

[0015] This utility model provides a car child safety seat with a rotatable base. Through multiple sets of slots set on the positioning plate, it can achieve a fixing effect in different positions, improve stability after displacement, reduce the large shaking when picking up or placing the child, and improve safety. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the base in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the polytetrafluoroethylene gasket in this utility model;

[0021] Figure 4 This is a cross-sectional view of the dovetail slider in this utility model;

[0022] Figure 5 This is a schematic diagram of the spring structure in this utility model.

[0023] Legend:

[0024] 1. Chassis; 11. Motor; 12. External gear disc; 13. Base pad; 14. Rolling bearing; 15. Internal gear disc; 16. Connecting groove; 17. Slide rail; 18. Dovetail groove; 19. Dovetail slider; 101. Seat; 102. Handle; 2. Positioning block; 21. Spring; 22. Positioning pin; 23. Positioning plate; 24. Rubber ring; 3. Electric push rod; 31. Sliding hole; 32. Ring disc; 4. Reset block; 41. Steel rubber rod; 5. Rubber gasket; 51. PTFE gasket; 6. Rubber sheet; 7. Control button. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figure 1 , Figure 2 , Figure 3This utility model provides a car child safety seat with a rotatable base, including a chassis 1; characterized in that: a motor 11 is fixedly connected to the inner wall of the chassis 1; an external gear disk 12 is provided at the output end of the motor 11; a base pad 13 is provided above the chassis 1; a rolling bearing 14 is fixedly connected to the bottom end of the base pad 13; an internal gear disk 15 is fixedly connected to the inner wall of the rolling bearing 14; the external gear disk 12 and the internal gear disk 15 are meshed; symmetrical connecting grooves 16 are provided at the ends of the base pad 13; the connecting grooves 16 are located on the sides of the base pad 13. A slide rail 17 is fixedly connected to the wall; a dovetail groove 18 is provided at the end of the slide rail 17; a dovetail slider 19 is slidably connected to the side wall of the dovetail groove 18; a seat back 101 is provided at the end of the base pad 13; a handle 102 is rotatably connected to the bottom end of the seat back 101; the dovetail slider 19 is fixedly connected to the seat back 101; firstly, the child seat is installed in the back row position. Before picking up the child or placing him / her on the seat back 101, manually pull the handle 102 outwards. The sliding effect of the dovetail slider 19 will cause the seat back 101 to also move outwards. The dovetail slider 19 slides outwards. The dovetail groove 18 design enhances the stability of the dovetail slider 19 during sliding, thus improving the stability of the seat / backrest 101 during sliding. After the seat / backrest 101 is pulled to a suitable distance, the control system starts the motor 11, which drives the outer gear disk 12 to rotate. The meshing connection between the outer gear disk 12 and the inner gear disk 15 drives the inner gear disk 15 to rotate, which in turn drives the base pad 13 to rotate via the rolling bearing 14. The rolling bearing 14 maintains rotational stability during rotation. This achieves a stable rotation of the base pad 13, thereby enabling the stable rotation of the seat 101. Before rotating the seat 101, the position of the seat 101 is adjusted so that it is centered in the space between the front and rear seats of the car, which expands the radius of rotation of the seat 101. Through the set slide rail mechanism, the seat 101 can be moved a short distance, expanding its activity space in the rear seat of the car and increasing the radius of rotation. This increases the left-side operating space when picking up or placing a child, improving the flexibility and safety of operation.

[0028] Furthermore, such as Figure 3 , Figure 5As shown, a positioning block 2 is fixedly connected to the side wall of the dovetail slider 19; a spring 21 is fixedly connected to the inner side wall of the positioning block 2; a positioning pin 22 is fixedly connected to the end of the spring 21; the positioning pin 22 is slidably connected to the inner side wall of the positioning block 2; a positioning plate 23 is fixedly connected to the inner side wall of the dovetail slider 19; a rubber ring 24 is fixedly connected to the inner side wall of the positioning plate 23; during the outward sliding of the dovetail slider 19, when it is restricted by the height of the positioning plate 23, the positioning pin 22 compresses the spring 21 and slides into the positioning block 2. When the positioning pin 22 slides to the slot of the positioning plate 23, the height restriction is released. At this time, the spring 21 generates a rebound force to push the positioning pin 22 upward, so that the positioning pin 22 slides into the slot of the positioning plate 23, thereby achieving positioning and fixing. This makes the seat 101 stable after movement. Through the multiple sets of slots set on the positioning plate 23, the fixing effect at different positions is achieved, improving the stability after displacement, reducing the large shaking when picking up or placing children, and improving safety.

[0029] Furthermore, such as Figure 4 As shown, an electric push rod 3 is fixedly connected to the side wall of the connecting groove 16; a sliding hole 31 is opened on the side wall of the dovetail slider 19; the output end of the electric push rod 3 slides on the side wall of the sliding hole 31; a ring 32 is fixedly connected to the output end of the sliding hole 31; the ring 32 and the dovetail slider 19 are fixedly connected; when the seat 101 is pulled out and retracted, the electric push rod 3 is activated by the control system to slowly push out or retract, and the ring 32 increases the contact area with the dovetail slider 19, providing power for manual operation, stabilizing the sliding effect of the dovetail slider 19, and improving the sliding stability while saving effort.

[0030] Furthermore, such as Figure 4 As shown, a reset block 4 is fixedly connected to the end of the slide rail 17; a steel rubber rod 41 is fixedly connected to the side wall of the dovetail slider 19; the steel rubber rod 41 is slidably connected to the inner side wall of the reset block 4; when the dovetail slider 19 retracts and resets, the steel rubber rod 41 deforms when it slides into the reset block 4 due to the action of the contraction force. When the protrusion of the steel rubber rod 41 slides out of the reset block 4, the steel rubber rod 41 is limited and fixed by the width restriction, thus fixing the dovetail slider 19 during reset and preventing it from sliding.

[0031] Furthermore, such as Figure 3 As shown, multiple sets of rubber pads 5 are fixed to the end of the base pad 13; polytetrafluoroethylene (PTFE) pads 51 are provided at the end of the rubber pads 5; the rubber pads 5 provide elastic cushioning and shock absorption, while the PTFE pads 51 provide lubrication, improving the smoothness of the seat 101 during sliding, thereby improving the sliding stability effect.

[0032] Furthermore, such as Figure 3As shown, a rubber sheet 6 is fixed to the end of the base pad 13; the rubber sheet 6 provides elastic support for the rear end of the seat 101, improving the stability of the child when leaning against it.

[0033] Furthermore, such as Figure 2 As shown, a control button 7 is provided on the side wall of the chassis 1; the control button 7 is electrically connected to the motor 11 and the electric push rod 3; the motor 11 and the electric push rod 3 are controlled by the control button 7, providing convenience for driving.

[0034] Working principle: First, the child seat is installed in the rear seat. Before picking up the child or placing them on the seat back 101, manually pull the handle 102 outward. The dovetail slider 19 slides outward, causing the seat back 101 to slide as well. During the outward sliding of the dovetail slider 19, the design of the dovetail groove 18 improves the stability of the dovetail slider 19, thereby enhancing the stability of the seat back 101. After pulling the seat back 101 to a suitable distance, the control system starts the motor 11, which drives the external gear disk 12 to rotate. The external gear disk 12 interacts with the internal gear disk 1... The meshing connection of 5 drives the internal gear disk 15 to rotate, and drives the base pad 13 to rotate through the rolling bearing 14. The rolling bearing 14 maintains the stability of rotation during the rotation, realizing the stable rotation effect of the base pad 13, thereby completing the stable rotation of the seat 101. Before rotating the seat 101, by adjusting the position of the seat 101, the seat 101 is placed at the center of the front and rear seat space of the car, which can expand the radius range of the seat 101 during rotation. During the outward sliding of the dovetail slider 19, when it is limited by the height of the positioning plate 23, the positioning pin 2 2. The compression spring 21 slides into the positioning block 2. When the positioning pin 22 slides to the slot of the positioning plate 23, the height restriction is released. At this time, the spring 21 generates a rebound force to push the positioning pin 22 upward, so that the positioning pin 22 slides into the slot of the positioning plate 23, realizing positioning and fixing. This makes the moved seat 101 stable. When the seat 101 is pulled out and retracted, the electric push rod 3 is activated by the control system to slowly push out or retract it. The ring 32 increases the contact area with the dovetail slider 19, providing power for manual operation and stabilizing the sliding of the dovetail slider 19. The effect is that when the dovetail slider 19 retracts and resets, the steel rubber rod 41 deforms when it slides into the reset block 4 due to the contraction force. When the protrusion of the steel rubber rod 41 slides out of the reset block 4, the steel rubber rod 41 is limited and fixed by the width restriction, which fixes the dovetail slider 19 when it resets. The rubber pad 5 provides elastic buffering and shock absorption, while the polytetrafluoroethylene pad 51 provides lubrication, improving the smoothness of the seat 101 when sliding. The rubber sheet 6 provides elastic support for the rear end of the seat 101. The motor 11 and the electric push rod 3 are controlled by the control button 7.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rotatable base car child safety seat comprising a chassis (1); characterised in that: A motor (11) is fixedly connected to the inner wall of the chassis (1); an external gear disk (12) is provided at the output end of the motor (11); a base pad (13) is provided above the chassis (1); a rolling bearing (14) is fixedly connected to the bottom end of the base pad (13); an internal gear disk (15) is fixedly connected to the inner wall of the rolling bearing (14); the external gear disk (12) and the internal gear disk (15) are meshed; the ends of the base pad (13) are symmetrically opened. A connecting groove (16) is provided; a slide rail (17) is fixedly connected to the side wall of the connecting groove (16); a dovetail groove (18) is opened at the end of the slide rail (17); a dovetail slider (19) is slidably connected to the side wall of the dovetail groove (18); a seat back chair (101) is provided at the end of the base pad (13); a handle (102) is rotatably connected to the bottom end of the seat back chair (101); the dovetail slider (19) and the seat back chair (101) are fixedly connected.

2. A rotatable base car child safety seat as claimed in claim 1, wherein: The dovetail slider (19) is fixedly connected to a positioning block (2) on its side wall; a spring (21) is fixedly connected to the inner side wall of the positioning block (2); a positioning pin (22) is fixedly connected to the end of the spring (21); the positioning pin (22) is slidably connected to the inner side wall of the positioning block (2); a positioning plate (23) is fixedly connected to the inner side wall of the dovetail slider (19); and a rubber ring (24) is fixedly connected to the inner side wall of the positioning plate (23).

3. A rotatable base car child safety seat as in claim 1, wherein: An electric push rod (3) is fixedly connected to the side wall of the connecting groove (16); a sliding hole (31) is opened on the side wall of the dovetail slider (19); the output end of the electric push rod (3) slides on the side wall of the sliding hole (31); a ring (32) is fixedly connected to the output end of the sliding hole (31); the ring (32) and the dovetail slider (19) are fixedly connected.

4. A rotatable base car child safety seat as defined in claim 1, wherein: A reset block (4) is fixedly connected to the end of the slide rail (17); a steel rubber rod (41) is fixedly connected to the side wall of the dovetail slider (19); and a steel rubber rod (41) is slidably connected to the inner side wall of the reset block (4).

5. A rotatable base car child safety seat as defined in claim 1, wherein: Multiple sets of rubber pads (5) are fixed to the end of the base pad (13); a polytetrafluoroethylene pad (51) is provided at the end of the rubber pad (5).

6. A rotatable base car child safety seat as defined in claim 1, wherein: A rubber sheet (6) is fixed to the end of the base pad (13).

7. A rotatable base car child safety seat as defined in claim 1, wherein: The chassis (1) has a control button (7) on its side wall; the control button (7) is electrically connected to the motor (11) and the electric push rod (3).

Images