阅读说明：本技术 安全带自动调整装置及汽车安全座椅 (Automatic safety belt adjusting device and automobile safety seat ) 是由 张大亮 于 2019-11-11 设计创作，主要内容包括：一种安全带自动调整装置,包括：安全带扣具固定件,可转动连接在汽车安全座椅的底座用于与安全带扣具扣合连接；用于卷绕安全带的安全带卷收器,所述安全带卷收器上设有用于限制所述安全带在预定方向上的滚动的锁定件；设置于所述安全带扣具固定件以及所述安全带卷收器的之间的连动件；所述安全带扣具固定件转动时相继带动所述连动件以及所述锁定件,从而锁定或释放所述安全带卷收器上的安全带。该装置可自动调节汽车安全座椅上的安全带,无需手动调整,结构简单、操作方便、安全可靠。(An automatic seatbelt adjustment device comprising: the safety belt buckle fixing piece is rotatably connected to the base of the automobile safety seat and is used for being buckled and connected with the safety belt buckle; the safety belt retractor is used for winding a safety belt, and a locking piece used for limiting the rolling of the safety belt in a preset direction is arranged on the safety belt retractor; the linkage piece is arranged between the safety belt buckle fixing piece and the safety belt retractor; the safety belt buckle fixing piece rotates to sequentially drive the linkage piece and the locking piece, so that the safety belt on the safety belt retractor is locked or released. The device can automatically adjust the safety belt on the automobile safety seat, does not need manual adjustment, and has the advantages of simple structure, convenient operation, safety and reliability.)

1. An automatic seatbelt adjustment device characterized by comprising:

the safety belt buckle fixing piece is rotatably connected to the base of the automobile safety seat and is used for being buckled and connected with the safety belt buckle;

the safety belt retractor is used for winding a safety belt, and a locking piece used for limiting the rolling of the safety belt in a preset direction is arranged on the safety belt retractor;

the linkage piece is arranged between the safety belt buckle fixing piece and the safety belt retractor;

the safety belt buckle fixing piece rotates to sequentially drive the linkage piece and the locking piece, so that the safety belt on the safety belt retractor is locked or released.

2. The automatic seatbelt adjustment device according to claim 1, wherein: the safety belt retractor comprises a retractor mounting piece, a safety belt winding rotating shaft, a first ratchet wheel and a second ratchet wheel, wherein the first ratchet wheel and the second ratchet wheel are located at two ends of the rotating shaft and are connected with the rotating shaft.

3. The automatic seatbelt adjustment device according to claim 2, wherein: the locking member includes a first locking member swingably mounted on the retractor mounting member and selectively engageable with or disengageable from the first ratchet gear, rotation of the rotary shaft in the first direction being restricted when the first ratchet gear is locked.

4. The automatic seatbelt adjustment device according to claim 2, wherein: the locking member includes a second locking member swingably mounted on the retractor mounting member and selectively engageable with or disengageable from a second ratchet wheel whose rotation in a second direction opposite to the first direction is restricted when the second ratchet wheel is locked.

5. The automatic seatbelt adjustment device according to claim 2, wherein: the first locking member is elastically mounted on the retractor mounting member by a first elastic member.

6. The automatic seatbelt adjustment device according to claim 3, wherein: the second locking member is elastically mounted on the retractor mounting member by a second elastic member.

7. The automatic seatbelt adjustment device according to claim 3, wherein: the first end of the linkage piece is fixed on the safety belt buckle fixing piece, and the second end of the linkage piece is abutted against the first locking piece.

8. The automatic seatbelt adjustment device according to claim 7, wherein: the second end of the linkage part is provided with a pushing plane, and the first locking part is provided with a matching surface matched with the pushing plane.

9. The automatic seatbelt adjustment device according to claim 1, wherein: the safety belt buckle fixing piece comprises a mounting piece, a rotating shaft mounted on the mounting piece and an inserting piece connected with the rotating shaft.

10. A car safety seat comprising an automatic seatbelt adjustment device according to any one of claims 1 to 9.

Technical Field

The invention relates to a child safety restraint device, in particular to an automatic safety belt adjusting device and an automobile safety seat.

Background

In order to maximize the safety of riding in a motor vehicle, children aged 0-12 should use the car safety seat, and the use of the car safety seat is more common. When the automobile safety seat is used, parents need to consider convenience in addition to safety. The harness on the safety seat often needs to be changed for children of different ages and different shapes. The traditional safety belt of the automobile safety seat is usually troublesome to adjust, the safety belt penetrates out of the bottom of the automobile safety seat and is exposed in front of the seat, when the length of the safety belt needs to be adjusted, a user pulls the bottom safety belt by hands, and the bottom safety belt is locked by a woven belt locking piece in the bottom safety belt when the required position is adjusted. The adjustment method is very inconvenient and is not suitable for the current requirements of people.

Therefore, it is necessary to provide an automatic safety belt adjusting device with simple structure, convenient operation, safety and reliability.

Disclosure of Invention

One object of the present invention is to provide an automatic adjusting device for a safety belt, which can automatically adjust the safety belt of a car safety seat without manual adjustment, and has the advantages of simple structure, convenient operation, safety and reliability.

Another object of the present invention is to provide a car seat with an automatic adjusting device for a safety belt, which can automatically adjust the safety belt on the car seat without manual adjustment, and has the advantages of simple structure, convenient operation, safety and reliability.

To achieve the above object, the present invention provides an automatic seat belt adjusting apparatus, comprising:

the safety belt buckle fixing piece is rotatably connected to the base of the automobile safety seat and is used for being buckled and connected with the safety belt buckle;

the safety belt retractor is used for winding a safety belt, and a locking piece used for limiting the rolling of the safety belt in a preset direction is arranged on the safety belt retractor;

the linkage piece is arranged between the safety belt buckle fixing piece and the safety belt retractor;

the safety belt buckle fixing piece rotates to sequentially drive the linkage piece and the locking piece, so that the safety belt on the safety belt retractor is locked or released.

Compared with the prior art, the automatic safety belt adjusting device realizes automatic locking or unlocking of the safety belt retractor through state change of the safety belt buckle fixing piece, so that the safety belt is automatically locked or unlocked.

Preferably, the safety belt retractor comprises a retractor mounting member, a rotating shaft for winding the safety belt, a first ratchet wheel and a second ratchet wheel, wherein the first ratchet wheel and the second ratchet wheel are positioned at two ends of the rotating shaft and connected with the rotating shaft.

Preferably, the locking member includes a first locking member swingably mounted to the retractor mounting member and selectively engageable with or disengageable from a first ratchet wheel which is restricted from rotating in the first direction when the rotating shaft is locked.

Preferably, the locking member includes a second locking member swingably mounted to the retractor mounting member and selectively engageable with or disengageable from a second ratchet wheel whose rotation in a second direction opposite to the first direction is restricted when the second ratchet wheel is locked.

Preferably, the first locking member is resiliently mounted to the retractor mounting member by a first resilient member.

Preferably, the second locking member is resiliently mounted to the retractor mounting member by a second resilient member.

Preferably, the first end of the linkage member is fixed to the seat belt buckle fixing member, and the second end of the linkage member abuts against the first locking member.

Preferably, the second end of the linkage member has a pushing plane, and the first locking member has a mating surface that mates with the pushing plane.

Preferably, the belt buckle fixing member includes a mounting member, a rotating shaft mounted on the mounting member, and an insertion member connected to the rotating shaft.

The invention also provides an automobile safety seat with the automatic safety belt adjusting device.

Drawings

FIG. 1 is a perspective view of one embodiment of a car safety seat of the present invention.

Fig. 2 is a perspective view of a seat body of the car safety seat of the present invention.

Fig. 3 is a schematic view of the automatic seatbelt adjustment device according to the present invention in a unlocked state.

Fig. 4 is a schematic view of a seatbelt retractor of the automatic seatbelt adjustment device according to the present invention in a release state.

Fig. 5 is a schematic view of the automatic seatbelt adjustment device of the present invention in a locked state.

Fig. 6 is a schematic view of a seatbelt retractor of the automatic seatbelt adjustment device of the present invention in a locked state.

Reference numbers for various elements in the figures illustrate:

insert 213 for a motor vehicle safety seat 1

Seat belt 10 seat belt retractor 22

Crotch belt 101 retractor mounting 221

Belt 102 linkage 23

Shoulder strap 103 pivot 222

First ratchet 223 of seat body 11

Base 111 with recessed portion 2231

Second ratchet 224 of seat cushion 12

First locking member 225 of seat belt buckle 13

Automatic seatbelt adjuster 2 protrusion 2251

Seat belt buckle fixing member 21 fitting surface 2252

Mounting member 211 second locking member 226

Rotating shaft 212 torsion springs 225a, 226a

Locking member 220 and linkage member 23

Pushing plane 231

Detailed Description

Several different preferred embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals represent like parts in the various figures. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The automobile safety seat is provided with the automatic safety belt adjusting device, so that after a child sits on the automobile safety seat and buckles the safety belt buckle, the safety belt can be automatically tightened without manual adjustment.

As shown in fig. 1 and 2, the car seat 1 includes a seat body 11 and a seat cushion 12 covering the seat body 11. As shown in the drawing, the seat belt 10 connected to the seat belt buckle 13 includes a crotch belt 101, a waist belt 102, and a shoulder belt 103. The buckle 13 is engaged with a buckle holder 21 (fig. 3) of the automatic buckle adjustment device 2.

As shown in fig. 3, the automatic seatbelt adjustment device 2 is installed in a base 111 of a seat body 11 of the car seat 1, and a seatbelt buckle fixing member 21 protrudes from the seat body 11 and the base 111. As shown in fig. 3, the automatic seat belt adjusting device 2 includes a seat belt buckle fixing member 21, a seat belt retractor 22, and a coupling member 23 provided between the seat belt buckle fixing member 21 and the seat belt retractor 22. Specifically, the buckle fixing member 21 includes a mounting member 211, a rotating shaft 212 mounted to the mounting member 211, and an insertion member 213 connected to the rotating shaft 212. The mounting member 211 is mounted on the seat base 111, and the insert 213 is rotatably mounted on the mounting member 211, and the insert 213 is engaged with the belt buckle 13.

The interlocking member 23 is disposed between the buckle fixing member 21 and the seatbelt retractor 22, and specifically, one end of the interlocking member 23 is fixed to the rotating shaft 212 of the buckle fixing member 21, and the other end thereof extends to and is connected to the seatbelt retractor 22. As the buckle holder 21 rotates, the interlocking member 23 moves forward or backward, thereby locking or releasing the belt of the belt retractor 22. As will be described in detail below.

As shown in fig. 4 and 6, the seatbelt retractor 22 includes a retractor mounting member 221, a rotating shaft 222 around which the seatbelt is wound, a first ratchet 223 and a second ratchet 224 at both ends of the rotating shaft 222. Specifically, the first ratchet 223 and the second ratchet 224 are both fixed on the rotating shaft 222, wherein the opening directions of the gears of the first ratchet 223 and the second ratchet 224 are opposite, and when the first ratchet 223 is locked, the second ratchet 224 is in a release state; when the second ratchet 224 is locked, the first ratchet 223 is in the unlocked state.

As shown in fig. 4, the seatbelt retractor 22 is provided with a locking member 220 for limiting the rolling of the seatbelt in a predetermined direction, and preferably, the locking member 220 includes a first locking member 225 and a second locking member 226. Specifically, as shown in fig. 3 to 6, a first locking member 225 is provided on the side of the rotating shaft 222, and the first locking member 225 is swingably mounted on the retractor mounting member 221 via an elastic member such as a torsion spring 225 a. In one embodiment, the first locking member 225 is a plate, and may be formed of a metal plate, and has a protrusion 2251 formed at one end thereof to engage with the recess 2231 of the first ratchet 223 and a mating surface 2252 formed at the other end thereof to abut against the pushing plane 231 of the end of the linkage 23. Alternatively, the first locking member 225 is engaged with or disengaged from the first ratchet 223 by the driving of the linkage member. A second locking member 226 is mounted to the retractor mounting member 221 at a position close to the second ratchet 224 on the other side of the rotation shaft 222, and the second locking member 226 is swingably mounted to the retractor mounting member 221 by an elastic member such as a torsion spring 226a and is selectively engaged with or disengaged from the second ratchet 224 by the urging of the interlocking member 23. Specifically, the second locking member 226 is pivotally mounted at a central portion thereof to the retractor mounting member 221, and has one end portion connected to the interlocking member 23 and the other end portion engaged with the second ratchet 224.

Specifically, in a case where the child is not seated on the safety seat and the buckle fixing member 21 is not buckled (i.e., the buckle is unlocked), the state of the automatic seatbelt adjusting apparatus 2 is as shown in fig. 3. At this time, the seat belt buckle fixing member 2 faces the front of the seat, the end of the linking member 23 abuts against the first locking member 225, and the first locking member 225 and the first ratchet 223 are in a disengaged state, as shown in fig. 4; the second locking member 225 has one end connected to the linkage member 23 and the other end engaged with the second ratchet 224, in this state, the clockwise rotation of the second ratchet 224 is limited, and the counterclockwise rotation is not limited, and similarly, the first ratchet 223 can rotate counterclockwise with the second ratchet 224. That is, the webbing retractor is rotatable counterclockwise, and at this time, is released so as to be freely pulled out. When the child sits, the buckle holder 21 is fastened, that is, as shown in fig. 3, the buckle holder is pushed forward in the direction of the arrow to the position shown in fig. 5, and in the process, the interlocking member is pushed forward in the direction of the arrow, and the first locking member 225 losing the pushing force is turned in the direction of the first ratchet 223 by the torsion spring 225a to achieve engagement with the first ratchet 223, and at the same time, the second locking member 226 is driven away from the second ratchet 224 to disengage from the first ratchet 223, as shown in fig. 6. In this state, the counterclockwise rotation of the first ratchet 223 is restricted, and the clockwise rotation is not restricted; the second ratchet 224 rotates clockwise with the first ratchet 223. That is, the seatbelt retractor 22 may rotate clockwise, and the seatbelt is automatically retracted to tighten the shoulder belt, thereby achieving automatic belt tightening.

In summary, the automatic adjusting device 2 for a seat belt of the present invention realizes automatic locking or unlocking of the seat belt retractor 22 by changing the state of the seat belt buckle fixing member 21, so as to automatically lock or unlock the seat belt.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.