CN203511568U

CN203511568U - Multifunctional safety belt winder structure

Info

Publication number: CN203511568U
Application number: CN201320638267.4U
Authority: CN
Inventors: 王福慧
Original assignee: ZHEJIANG DINGLI TIANYI AUTOMOBILE ACCESSORIES CO Ltd
Current assignee: Zhejiang Dingli Tianyi Auto Parts Stock Co., Ltd.
Priority date: 2013-10-16
Filing date: 2013-10-16
Publication date: 2014-04-02
Anticipated expiration: 2023-10-16

Abstract

The utility model relates to a multifunctional safety belt winder structure which comprises a rotary drum and a support. End covers are arranged at two ends of the support, one end cover is provided with a child safety lock, a one-way gear ring matched with the child safety lock is arranged at the end of the rotary drum, and the child safety lock comprise a transmission gear, a driving piece and a locking pin. The transmission gear is connected with a rotary shaft of the rotary drum, the middle of the driving piece is pivoted to the end cover, a driving groove is arranged at the top of the driving piece, the locking pin is hinged to the end cover, and the rear portion of the locking pin is provided with a driving block accommodated in the driving groove of the driving piece. The lower portion of the driving piece is provided with two driving rods which are distributed on two sides of the transmission gear, driving teeth are further arranged between the transmission gear and the driving rods, the rotary shaft of the driving teeth is arranged in a chute of the end cover and can move along the chute, and ejection blocks are arranged among tooth insections of the transmission gear and can enable the driving teeth to be ejected towards two sides. The multifunctional safety belt winder structure can prevent a phenomenon that a child safety seat is loosened in the running and jolting process.

Description

Multifunctional safety belt coiler structure

Technical field

The utility model relates to a kind of vehicle safety technology, the Multifunctional safety belt coiler structure of specifically using on a kind of vehicle.

Background technology

In seat belt apparatus, coiler is core component, as shown in Fig. 6-7, coiler mainly comprises cylinder 1 and support 2 at present, described cylinder 1 is articulated on support 2, at the two ends of support 2, be provided with end cap 3, child lock function is not set on end cap 3, when fixing child safety seat vehicle repeatedly in high low speed driving process effectively fixing child seat slide, there is certain potential safety hazard; The coiler of safety strap meeting lock in emergency when bumping, protects passengers inside the car thereby play in addition, but due to speed of a motor vehicle speed difference before collision, safety strap exists larger difference to the power of tying tight of human body, may cause secondary injury to human body.

Utility model content

The purpose of this utility model is to provide a kind of Multifunctional safety belt coiler structure, on the end cap of coiler, be provided with child safety lock, when child safety lock starts, seat belt apparatus can only tighten up and can not be stretched, thereby avoid the child safety seat only can be more and more tighter in the process of jolting of travelling, there will not be loosening phenomenon, overcome the potential safety hazard that present seat belt apparatus is deposited; On the cylinder of coiler, set up and put limiter axle in addition, when belt force is greater than the limit of limiter axle to the power of tying tight of human body, limiter axle produces torsional deflection energy-absorbing, makes belt force maintain limiter axle limiter value size always, avoids Le get Tai tightly human body to be caused to secondary injury.

For achieving the above object by the following technical solutions:

A kind of Multifunctional safety belt coiler structure, comprise cylinder and support, described cylinder is articulated on support, two ends at support are provided with end cap, it is characterized in that: on the end cap of described wherein one end, be provided with child safety lock, in the end of described cylinder, be provided with the unidirectional gear ring coordinating with child safety lock, described child safety lock comprises driving cog, actuator and lock pin, the rotating shaft of driving cog and cylinder is connected, the middle part of described actuator is articulated in end cap, the top of actuator is provided with driver slot, described lock pin is hinged on end cap, the rear portion of lock pin is provided with drive block, drive block is contained in the driver slot of actuator, the bottom of actuator is provided with two drive spindles, drive spindle is distributed in the both sides of driving cog, between driving cog and two drive spindles, be also provided with driving gear, the rotating shaft of driving gear is arranged in the chute of end cap and can moves along chute, between the groove of driving cog, be provided with place's jacking block, jacking block can back down driving gear to both sides.

Described driver slot is divided into pressing down section and lifting parts.

On described cylinder, set up limiter axle, limiter axle two ends are provided with spline, have the keyhole with spline fitted on a wherein end of cylinder, and the other end of limiter axle is fixed on support by anchor shaft.

The utility model arranges child safety lock on the end cap of belt retractor one end, child safety is locked in safety strap and is stretched to after certain length, by the jacking block of driving cog, contact with the driving gear of a side wherein, driving gear is outwards backed down, the wherein drive spindle of a side of driving gear and then promotion actuator, thereby actuator napex is moved, make drive block enter into pressing down section from lifting parts, drive block enters the head that makes lock pin after pressing down section by upwards turning to as and be connected to cylinder end unidirectional gear ring inside downwards, thereby stop cylinder to rotate to draw direction, thereby safety strap can only tighten up and can not be stretched again, thereby avoid child safety seat to occur loosening phenomenon in the process of jolting of travelling, overcome the potential safety hazard that present seat belt apparatus exists, the utility model is also provided with limiter axle between cylinder and support in addition, while being subject to resistance over the limiter axle limit when belt retractor tightens up, limiter axle produces torsional deflection energy-absorbing, make belt force maintain limiter axle limiter value size always, avoid Le get Tai tightly human body to be caused to secondary injury.

Accompanying drawing explanation

Fig. 1 is the structural representation of child safety lock of the present utility model;

Fig. 2 is the structural representation after child safety lock locking of the present utility model;

Fig. 3 is the structural representation that the utility model arranges limiter axle;

Fig. 4 is the side direction structural representation of the utility model cylinder;

Fig. 5 is the structural representation of the utility model limiter axle;

Fig. 6 is the structural representation of existing coiler;

Fig. 7 is the side direction structural representation of existing coiler.

The specific embodiment

As Figure 1-5, a kind of Multifunctional safety belt coiler structure, comprise cylinder 1 and support 2, described cylinder 1 is articulated on support 2, at the two ends of support 1, be provided with end cap 3, on the end cap 3 of described wherein one end, be provided with child safety lock, in the end of described cylinder 1, be provided with the unidirectional gear ring 11 coordinating with child safety lock, described child safety lock comprises driving cog 51, actuator 52 and lock pin 53, driving cog 51 is connected with the rotating shaft of cylinder 1, the middle part of described actuator 52 is articulated on end cap 3, the top of actuator 52 is provided with driver slot 54, described lock pin 53 is hinged on end cap 3, the rear portion of lock pin 53 is provided with drive block 55, drive block 55 is contained in the driver slot 54 of actuator 52, the bottom of actuator 52 is provided with two drive spindles, drive spindle is distributed in the both sides of driving cog 51, between driving cog 51 and two drive spindles, be also provided with

driving gear

56, 57,

driving gear

56, 57 rotating shaft is arranged in the chute of end cap and can moves along chute, between the groove of driving cog 51, be provided with place's jacking block 58, jacking block 57 can back down driving gear 56 to both sides, described driver slot is divided into pressing down section and lifting parts.

The utility model has been set up limiter axle 6 on described cylinder 1 in addition, and limiter axle 6 two ends are provided with spline 61, on a wherein end of cylinder 1, has the keyhole 12 coordinating with spline 61, and the other end of limiter axle 6 is fixed on support by anchor shaft 7.

The use of the utility model child safety lock is such realization: first safety strap is stretched to the longest position, now cylinder 1 drives driving cog 51 to rotate a circle, now the jacking block 58 of driving cog 51 can be with the groove of driving gear 56 to upper, and driving gear 56 is pushed up laterally, when moving laterally, driving gear can drive actuator 52 to rotate, actuator 52 rotates and makes the drive block 55 on lock pin 53 enter into pressing down section from the lifting parts of driver slot, and make the head of lock pin 53 upwards snap fit onto unidirectional gear ring, so far cylinder 1 can only rotate in take-up, and cannot stretch, rotated, thereby it is loosening to prevent that safety strap from fixedly occurring during child safety seat, overcome the potential safety hazard that present seat belt apparatus exists, then when safety strap further reclaims, the jacking block 58 of driving cog 51 can be with the groove of the driving gear 57 of opposite side to upper, jacking block 58 makes actuator 52 and driving gear 56 reply initial positions when driving gear 57 is outwards pushed up, the drive block 55 at lock pin 53 rear portions is added to lifting parts from pressing down section like this, lock pin 53 heads have taken off unidirectional gear ring 11, and at this moment cylinder 1 can positive and negatively freely rotate again.

On the utility model cylinder 1, set up limiter axle 6 in addition, when limiter axle 6 is subject to resistance over the limiter axle limit when safety strap tightens up, limiter axle produces torsional deflection energy-absorbing, makes belt force maintain limiter axle limiter value size always, avoids Le get Tai tightly human body to be caused to secondary injury.

Structure of the present utility model is on the basis of existing safety strap wrap-up structure, to have increased some parts can realize, without resetting coiler, by reaching above-mentioned two kinds of functions to realizing coiler transformation, greatly saved cost, promote safety, there are good market outlook.

Claims

1. a Multifunctional safety belt coiler structure, comprise cylinder and support, described cylinder is articulated on support, two ends at support are provided with end cap, it is characterized in that: on the end cap of described wherein one end, be provided with child safety lock, in the end of described cylinder, be provided with the unidirectional gear ring coordinating with child safety lock, described child safety lock comprises driving cog, actuator and lock pin, the rotating shaft of driving cog and cylinder is connected, the middle part of described actuator is articulated in end cap, the top of actuator is provided with driver slot, described lock pin is hinged on end cap, the rear portion of lock pin is provided with drive block, drive block is contained in the driver slot of actuator, the bottom of actuator is provided with two drive spindles, drive spindle is distributed in the both sides of driving cog, between driving cog and two drive spindles, be also provided with driving gear, the rotating shaft of driving gear is arranged in the chute of end cap and can moves along chute, between the groove of driving cog, be provided with place's jacking block, jacking block can back down driving gear to both sides.

2. a kind of Multifunctional safety belt coiler structure as claimed in claim 1, is characterized in that: described driver slot is divided into pressing down section and lifting parts.

3. a kind of Multifunctional safety belt coiler structure as claimed in claim 1, it is characterized in that: on described cylinder, set up limiter axle, limiter axle two ends are provided with spline, on a wherein end of cylinder, have the keyhole with spline fitted, the other end of limiter axle is fixed on support by anchor shaft.