CN102102485B

CN102102485B - Safe curtain winding structure

Info

Publication number: CN102102485B
Application number: CN 201010114634
Authority: CN
Inventors: 肖长江
Original assignee: Ningbo Xianfeng New Material Co Ltd
Current assignee: Ningbo Xianfeng New Material Co Ltd
Priority date: 2010-02-25
Filing date: 2010-02-25
Publication date: 2012-09-26
Anticipated expiration: 2030-02-25
Also published as: CN102102485A

Abstract

The invention discloses a safe curtain winding structure. The safe curtain winding structure comprises a main chain wheel, a bead chain rope driving the main chain wheel to rotate and a bracket assembly for arranging the main chain wheel; the bead chain rope consists of a plurality of beads and a line connected among beads; the safe curtain winding structure is characterized in that: the bracket assembly comprises a fixed bracket and a detachable clamp piece; the left and right sides and the upper end face of the clamp piece and the fixed bracket form a passage for moving the bead chain rope; the beads on the bead chain rope are matched with tooth slots on the lower part of the main chain wheel, so that the bead chain rope does not fall off when normally pulled, and the bead chain rope falls off when powerfully pulled accidently; and the safe curtain winding structure can be used stably, has a reasonable structure and does not influence the whole beauty.

Description

A kind of safe curtain winding-structure

Technical field

The present invention relates to a kind of curtain winding-structure.

Background technology

Manual curtain coiling apparatus, majority are to rely on pelletron, and with pulling moving bead cord, the drive curtain is done and rolled or put down; This kind bead cord stretch out a sagging bead cord, in family uses, can occur twining baby's incident, cause and cause injury, disable, even deadly incident; Increase a pulley in the free end bottom, this pulley is fixed on the body of wall for this reason, but also because of the user does not pack into pulley to bead cord, causes above-mentioned incident to still have the possibility of generation, so this kind mode is still dangerous; For this reason through constantly research and improvement; The patent No. is that 200420071930.8 Chinese patent discloses a kind of safe pelletron that is used to drive the curtain body folding and unfolding, and this pelletron is made up of several beads and the line that is connected between bead, and the two ends of pelletron is incorporated on a connecting seat; Form a chain link; Form the holding tank that is complementary with bead in the Connection Block, and be extended with splitting groove by holding tank towards the Connection Block end, the width of splitting groove is less than the holding tank internal diameter; Bead on the said pelletron termination is embedded in the holding tank.Adopt such structure, chain link receives certain external force and does the time spent, but it is embedded at the termination bead trip-free in the Connection Block; Promptly utilize connectivity structure design and the splitting groove of holding tank and splitting groove to rise automatically to receive principle and realize, thereby the oneself who reaches chain link unties, and avoids its cover to be buckled in the people and to cause unnecessary accident; But the defective of this structure is possibly at normal pulling chain rope or stressedly just possibly cause untiing automatically of chain link when a little bigger; Use instability, frequent coming off causes certain puzzlement to the user, and unreasonable structure; Also influence attractive in appearancely, need further to improve.

Summary of the invention

Technical problem to be solved by this invention provides and a kind ofly when normal pulling bead cord, bead cord can not occur and come off; Accident firmly spurs bead cord and just can cause bead cord to come off; Thereby avoid the incident of injury to take place; Use is stable, and is rational in infrastructure, and do not influence the safe curtain winding-structure of overall appearance.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of safe curtain winding-structure; Comprise head sprocket and the bracket component that is used to drive the bead cord of head sprocket rotation and is used to install head sprocket; This bead cord is made up of several beads and the line that is connected between bead; It is characterized in that: said bracket component comprises fixed support and removable lining fastener, and fastener and fixed support constitute the passage that supplies the bead cord activity, and the bead on the bead cord cooperates with the teeth groove of head sprocket bottom.

As preferred site, the upper surface of said fastener left and right side and fastener is connected with fixed support.

As improvement, said fastener links to each other with support bracket fastened lower snap.

As improvement, the structure that said buckle links to each other is: the front-back in the fastener bottom is provided with card base, and the bayonet socket on this card base and the fixed support matches.

As improvement, the upper surface of said fastener is curved, and the radian of this arc is identical with the cooperation section radian of head sprocket with bead cord, and fastener integral body is inverted U.

As improvement, the middle part of said base has an installation shaft, and the face of gear of said head sprocket is installed in the support bracket fastened top through installation shaft is rotating.

As improvement, said installation shaft connects and composes a box body with base, fixed support and head sprocket, and the face of gear of head sprocket places in this box body.

Compared with prior art, the invention has the advantages that: fastener and fixed support constitute the passage that supplies the bead cord activity, when the pulling bead cord; So owing to be that the stressed bead cord of a side is free to slide, normally can not cause bead cord to come off when stressed, it is stable that it is used; And rational in infrastructure, because fixed support and fastener constitute an integral support assembly, do not influence overall appearance; The front-back of fastener bottom is provided with card base, and the bayonet socket on this card base and the fixed support matches, and twines when bead cord and forms lasso; And accident takes place to be inserted in like baby's health or pet, firmly struggles, and makes fastener break away from fixed support; Fall down thereby bead cord is twined, avoid causing injury the user because of the free end lasso of bead cord.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the STRUCTURE DECOMPOSITION figure of head sprocket device;

Fig. 3 is the STRUCTURE DECOMPOSITION figure of follower device;

The rear elevation of head sprocket device when Fig. 4 is normal operating condition;

The rear elevation of head sprocket device when Fig. 5 is overweight user mode.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

A kind of safe curtain winding-structure shown in Fig. 1～5 comprises base 1, head sprocket 2 and is used to drive bead cord 3 that head sprocket 2 rotates and the bracket component 27 that is used to install head sprocket 2 that described head sprocket 2 comprises joint face and face of gear 5; On joint face, be provided with connection strap 6, there have one first aluminum pipe plug 7 to combine with connection strap 6 on the joint face to be fixing, and said bracket component 27 comprises fixed support 8 and removable lining fastener 9; Have an installation shaft 10 at the middle part of base 1, this installation shaft 10 connects and composes a box body 11 with base 1, fixed support 8 and head sprocket 2, the lid of susceptor surface 12 and fixed support 8 surface formation box bodys 11; Fixed support 8 tops constitute the box body of box body 11, on susceptor surface 12, have some installing holes, and the face of gear 5 of described head sprocket 2 is installed in rotation in the box body 11 through installation shaft 10; Have a back-moving spring 13 to be located between the first aluminum pipe plug 7 and the installation shaft 10 and be nested with on installation shaft 10, make its maintenance have the trend of resetting, bead cord 3 is made up of several beads 14 and the line 15 that is connected in 14 of beads; Said fastener 9 integral body are inverted U, and fastener 9 links to each other with the lower snap of fixed support 8, and the structure that this buckle links to each other is: the front-back in fastener 9 bottoms is provided with card base 16; Card base 16 matches with bayonet socket 17 on the fixed support 8, and card base 16 is 4 with the quantity of bayonet socket 17, when card base 16 is buckled in 8 last times of fixed support; The upper surface 18 of the left and right side of fastener 9 and fastener 9 and fixed support 8 constitute the passage that supplies bead cord 3 movable, and the bead 14 on the bead cord 3 cooperates with the teeth groove 19 of head sprocket 2 bottoms, be exactly bead cord 3 be not to be wrapped on the head sprocket 2; But pass through from head sprocket 2 bottoms, the upper surface 18 of said fastener 9 is curved, and the radian of this arc cooperates the radian of section identical with bead cord 3 and head sprocket 2 bottoms; Opposite at head sprocket 2 also is provided with follower 20, has the connection chamber 25 of protrusion in the side of follower 20, has a movable part 21 to insert in the connection chamber 25; Positioned inside at movable part 21 has one 22, has an end of a spring 23 to be enclosed within on the axle head, and this spring 23 is located between the second aluminum pipe plug 24 and the axle 22; The described second aluminum pipe plug 24 utilizes rivet 27 to be enclosed within the outside of connection chamber 25, and above-mentioned movable part 21, axle 22 and spring 23 all place in the passage of the second aluminum pipe plug 24, have an aluminum pipe 26 to be enclosed within on the first aluminum pipe plug 7 and the second aluminum pipe plug 24; Can spur head sprocket 2 through bead cord 3; Aluminum pipe 26 is rotated along with the rotation of head sprocket 2, and then drive the curtain folding and unfolding, this device is owing to bracket component is that the front-back card base 16 of fastener 9 is buckled on the fixed support 8; When the gravity that receives exceeds certain limit; Fastener 9 will come off automatically, has avoided causing the injury to the baby because of the free end lasso of bead cord 3, again because when pulling bead cord 3; Be that a side is stressed; So bead cord 3 is free to slide, the stressed bead cord 3 that greatly also can not cause again comes off, and it is stable that it is used.

Here requiring emphasis be that fastener is connected with support bracket fastened clamping can be various, can be to be stuck in support bracket fastened the inside, also can be to be stuck in support bracket fastened bottom surface, and principle is similar.

Claims

1. safe curtain winding-structure; Comprise head sprocket and the bracket component that is used to drive the bead cord of head sprocket rotation and is used to install head sprocket; This bead cord is made up of several beads and the line that is connected between bead; It is characterized in that: said bracket component comprises fixed support and removable lining fastener, and fastener and fixed support constitute the passage that supplies the bead cord activity, and the bead on the bead cord cooperates with the teeth groove of head sprocket bottom.

2. safe curtain winding-structure according to claim 1, it is characterized in that: the upper surface of said fastener left and right side and fastener is connected with fixed support.

3. safe curtain winding-structure according to claim 2 is characterized in that: said fastener links to each other with support bracket fastened lower snap.

4. safe curtain winding-structure according to claim 3 is characterized in that: the structure that said buckle links to each other is: the front-back in the fastener bottom is provided with card base, and the bayonet socket on this card base and the fixed support matches.

5. according to the described safe curtain winding-structure of any claim of claim 1～4, it is characterized in that: the upper surface of said fastener is curved, and the radian of this arc is identical with the cooperation section radian of head sprocket with bead cord, and fastener integral body is inverted U.

6. safe curtain winding-structure according to claim 5 is characterized in that: the face of gear of said head sprocket is installed in rotation in the support bracket fastened upper cavity through installation shaft, and said installation shaft is arranged on the middle part of base.

7. safe curtain winding-structure according to claim 6 is characterized in that: said installation shaft connects and composes a flat box body with base, fixed support and head sprocket, and the face of gear of head sprocket places in this box body.