CN217227351U

CN217227351U - Child safety seat with adjustable backrest

Info

Publication number: CN217227351U
Application number: CN202123160801.9U
Authority: CN
Inventors: 戴亦晖; 崔东辉
Original assignee: Hangzhou New Territory Intelligent Technology Co ltd
Current assignee: Hangzhou New Territory Intelligent Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-08-19
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a back adjustable children's safety seat, including the back of the chair, seat base and electric drive device, electric drive device includes rotary mechanism and guiding mechanism, guiding mechanism is including setting up the fixing base at back of the chair lower extreme, rotary mechanism is used for driving the seat base and moves about on the fixing base, guiding mechanism is used for restricting the movable angle between the back of the chair and the fixing base for the angle of the adjustment back of the chair. After the child sleeps, the chair back can be automatically changed from the sitting posture to the lying posture, so that the child can sleep more stably. The utility model provides a stable in structure, convenient operation's rotatable children safety seat lets more comfortable of children.

Description

Child safety seat with adjustable backrest

Technical Field

The utility model relates to a children's seat field specifically is a back adjustable children's safety seat.

Background

Child safety seats are commonly used in automobiles to properly restrain a child in the event of an accidental collision. It is well known that a child safety seat mounted in a rearward direction provides better protection because it distributes impact forces to a larger portion of the body (i.e., the child's head and torso). Safety experts and car seat manufacturers therefore generally recommend that children be secured in a car in a backward configuration until the age of 2.

When using, according to the size of children's age, perhaps every children's use hobby, the automobile-used children's safety seat can forward, reverse rotation and the regulation of inclination to this security that satisfies children's safety seat and travelling comfort's requirement. In order to achieve the purpose, a large number of child safety seats for vehicles appear in the market, but the child safety seats which can rotate and adjust the inclination angle in the existing market are complex in structure, low in stability, inconvenient to operate and high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a back adjustable children's safety seat, the utility model provides a stable in structure, convenient operation's rotatable children's safety seat lets more comfortable of children.

In order to achieve the purpose of the invention, the utility model adopts the following technical scheme: the utility model provides a back adjustable children's safety seat, includes the back of the chair, seat base and electric drive device, electric drive device includes rotary mechanism and guiding mechanism, guiding mechanism is including setting up the fixing base at back of the chair lower extreme, rotary mechanism is used for driving the seat base and moves about on the fixing base, guiding mechanism is used for restricting the movable angle between the back of the chair and the fixing base for the angle of the adjustment back of the chair. After the child falls asleep, the chair back can be automatically changed from the sitting posture to the lying posture, so that the child can sleep more stably.

Preferably, guiding mechanism is still including front guideway and back guide, and rotary mechanism includes driving motor, driving motor sets up on the fixing base, front guideway and back guide are two at least guide rails that the symmetry set up, front guideway and back guide set up respectively at the fixing base front and back end, the back of the chair includes two guiding axles, the guiding axle passes front guideway and back guide respectively. The lying posture and the sleeping posture of the child are changed, the turning angle of the seat is limited, and the chair is very convenient.

Preferably, an adjusting assembly is arranged between the guide shaft and the driving motor, and the adjusting assembly is used for limiting the position of the guide shaft on the front guide rail and the rear guide rail.

Preferably, the adjusting assembly comprises a rotary screw rod and a shaft sleeve, the shaft sleeve is sleeved on the guide shaft, the rotary screw rod is connected with the shaft sleeve through threads, and the driving motor drives the rotary screw rod to rotate. The rotary screw rod is driven to rotate by the driving motor, so that the position of the shaft sleeve on the rotary screw rod is changed, the relative position of the guide shaft on the front guide rail and the rear guide rail is changed, and the seat base is arranged on the fixed seat.

Preferably, the shaft sleeve is sleeved on a guide shaft on the front guide rail. The movement is more stable, the movement is less, and the gravity center of the child is closer to.

Preferably, the middle part of the seat base is provided with a circular rotating groove, the fixing seat can rotate in the rotating groove, the rotating mechanism is arranged between the rotating groove and the fixing seat, and the rotating mechanism can enable children to rotate freely to find a more comfortable visual field.

Preferably, the rotating mechanism comprises a sliding block and a rotating guide rail, the rotating guide rail is fixed in the seat base, the sliding block is positioned on the fixed seat, and the sliding block is arranged in the rotating guide rail and moves along the rotating guide rail and is used for limiting the rotating angle of the fixed seat in the rotating groove.

Compared with the prior art, the child safety seat with the adjustable backrest, which adopts the technical scheme, has the following beneficial effects:

adopt the utility model discloses a back adjustable children's safety seat can carry out inclination's regulation, has satisfied the requirement of children's safety seat travelling comfort and security.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the child safety seat with an adjustable backrest of the present invention.

FIG. 2 is a side cross-sectional view of an embodiment of a child safety seat with an adjustable back.

Fig. 3 is a schematic structural diagram of the fixing base and the seat base in the embodiment.

Fig. 4 is a schematic structural diagram of the fixing base in the embodiment.

Reference numerals: 1. a chair back; 10. a guide shaft; 100. a shaft sleeve; 2. a seat base; 20. rotating the guide rail; 21. a rotating tank; 22. a slider; 3. a fixed seat; 30. a front guide rail; 31. a rear guide rail; 32. a drive motor; 33. and rotating the screw rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, the child safety seat with an adjustable backrest comprises a seat back 1, a seat base 2 and an electric driving device, wherein the electric driving device comprises a rotating mechanism and a guiding mechanism, the guiding mechanism comprises a fixing seat 3 arranged at the lower end of the seat back 1, the rotating mechanism is used for moving the movable base on the seat base 2, and the guiding mechanism is used for adjusting the relative position between the seat back 1 and the fixing seat 3, namely the angle of the seat back 1.

Guiding mechanism is still including preceding guide rail 30, back guide rail 31 and driving motor 32, preceding guide rail 30 and back guide rail 31 are two guide rails that the symmetry set up, preceding guide rail 30 and back guide rail 31 set up respectively in fixing base 3 front and back ends, driving motor 32 sets up on fixing base 3, back of the chair 1 includes two guiding axles 10, guiding axle 10 passes preceding guide rail 30 and back guide rail 31 respectively, be provided with adjusting part between guiding axle 10 and the driving motor 32, adjusting part is used for injecing the position of guiding axle 10 on preceding guide rail 30 and back guide rail 31.

The adjusting assembly comprises a rotary screw rod 33 and a shaft sleeve 100, the shaft sleeve 100 is sleeved on the guide shaft 10, the rotary screw rod 33 is connected with the shaft sleeve 100 through threads, the driving motor 32 drives the rotary screw rod 33 to rotate, and the shaft sleeve 100 is sleeved on the guide shaft 10 on the front guide rail 30.

The middle part of the seat base 2 is provided with a circular rotating groove 21, the fixed seat 3 can rotate in the rotating groove 21, and the rotating mechanism is arranged between the rotating groove 21 and the fixed seat 3. The rotating mechanism comprises a sliding block 22 and a rotating guide rail 20, the rotating guide rail 20 is fixed in the seat base 2, the sliding block 22 is positioned on the fixed seat 3, and the sliding block 22 is arranged in the rotating guide rail 20 and moves along the rotating guide rail 20 and is used for limiting the rotating angle of the fixed seat 3 in the rotating groove 21.

The utility model discloses a concrete operation mode:

1. when a child is placed in the seat, the safety belt is fixed, and the electric driving device starts to move after the child falls asleep (judged by other sensing devices such as a camera and vibration sensing devices).

2. When the child is detected to be asleep, the driving motor 32 drives the rotating screw 33 to rotate, so that the position of the shaft sleeve 100 on the rotating screw 33 is changed, the relative position of the guide shaft 10 on the front guide rail 30 and the rear guide rail 31 is changed, the angle of the chair back 1 is changed, the child is changed from the sitting posture to the sleeping posture,

3. similarly, the angle of the seat 2 is changed from the sleeping posture to the sitting posture, that is, the driving motor 32 moves reversely, so that the distance between the shaft sleeve 100 and the driving motor 32 is increased, and the angle of the seat 2 is changed from the upward direction to the sitting posture.

4. When the child needs to adjust the self-opposite angle on the seat, the driving motor 32 drives the sliding block 22 to slide on the rotating guide rail 20 on the rotating groove 21, so that the self-opposite angle can be adjusted, and the visual field can be better adjusted.

The above description is a preferred embodiment of the present invention, and a person skilled in the art can make several modifications and improvements without departing from the principles of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A children's safety seat with an adjustable backrest is characterized in that: including the back of the chair (1), seat base (2) and electric drive device, electric drive device includes rotary mechanism and guiding mechanism, guiding mechanism is including setting up fixing base (3) on fixed seat base (2), rotary mechanism is used for driving the bottom of the back of the chair (1) and moves about on fixing base (3), guiding mechanism is used for restricting the activity angle between the back of the chair (1) and fixing base (3) for the angle of the back of the chair (1) of adjustment.

2. The adjustable back child safety seat according to claim 1, wherein: guiding mechanism is still including front guide (30) and rear guide (31), and rotary mechanism includes driving motor (32), driving motor (32) set up on fixing base (3), front guide (30) and rear guide (31) are two at least guide rails that the symmetry set up, front guide (30) and rear guide (31) set up respectively in fixing base (3) front and back end, back of the chair (1) includes two guiding axle (10), guiding axle (10) pass front guide (30) and rear guide (31) respectively.

3. The adjustable back child safety seat according to claim 2, wherein: an adjusting assembly is arranged between the guide shaft (10) and the driving motor (32), and is used for limiting the position of the guide shaft (10) on the front guide rail (30) and the rear guide rail (31).

4. The adjustable back child safety seat according to claim 3, wherein: the adjusting assembly comprises a rotary screw rod (33) and a shaft sleeve (100), the shaft sleeve (100) is sleeved on the guide shaft (10), the rotary screw rod (33) is connected with the shaft sleeve (100) through threads, and the drive motor (32) drives the rotary screw rod (33) to rotate.

5. The adjustable back child safety seat according to claim 4, wherein: the shaft sleeve (100) is sleeved on a guide shaft (10) on the front guide rail (30).

6. The adjustable back child safety seat according to claim 1, wherein: a circular rotating groove (21) is formed in the middle of the seat base (2), the fixing seat (3) can rotate in the rotating groove (21), and the rotating mechanism is arranged between the rotating groove (21) and the fixing seat (3).

7. The adjustable back child safety seat according to claim 6, wherein: the rotating mechanism comprises a sliding block (22) and a rotating guide rail (20), the rotating guide rail (20) is fixed in the seat base (2), the sliding block (22) is located on the fixed seat (3), and the sliding block (22) is arranged in the rotating guide rail (20) and moves along the rotating guide rail and is used for limiting the rotating angle of the fixed seat (3) in the rotating groove (21).