CN2722779Y

CN2722779Y - Curtain rolling device

Info

Publication number: CN2722779Y
Application number: CN 200420045672
Authority: CN
Inventors: 朱向荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-10
Filing date: 2004-05-10
Publication date: 2005-09-07
Anticipated expiration: 2014-05-10

Abstract

The utility model provides a curtain rolling device, comprising a bracket, an axis which is arranged on the bracket, a bead chain chainwheel which is provided with a socket, a rolling axis socket which is sheathed on the socket, and a rolling axis which is fixed on the rolling axis socket. The socket on the bead chain chainwheel is rotatably and movably connected on the axis of the bracket, a spring coil is arranged on the axis, and the two ends of the spring coil are tilted upwardly. A groove is arranged on the socket on the bead chain chainwheel, the edges of the groove are positioned outside the two upwardly tilted ends of the spring coil, and a dummy club which is arranged in the rolling axis socket is positioned inside the two upwardly tilted ends of the spring coil. The curtain rolling device is characterized in that the axis on the bracket is a metallic axis which is fixed on the bracket. Compared with prior arts, the curtain rolling device has the advantages that the axis on the bracket is not easy to be damaged, and the spring coil can smoothly rotate along a plastic axis.

Description

A kind of curtain roller blind device

Technical field:

The utility model relates to a kind of window shade arrangement.

Background technology:

Existing with the rotation of pelletron drive shade rollerl blind shaft, maybe will be wound on curtain roller blind device that the curtain on the spool puts down on the spool mainly by support so that curtain is wound on, be arranged on the axle on the support, the pelletron sprocket wheel that has cover, be socketed in the spool cover that puts, be fixed on the spool formation that spool puts, cover on the pelletron sprocket wheel rotates on the axle that is actively socketed on support, on axle, be provided with turn, tilt upward in the two ends of turn, putting on the pelletron sprocket wheel is provided with fluting, the trough rim of fluting is positioned at the outside at the turn two ends that are upturned, be provided with boss in the spool cover, boss is positioned at the inboard at the turn two ends that are upturned.During work, pelletron drives the pelletron sprocket rotation, the cover that is fixed together with the pelletron sprocket wheel also rotates, driving the spool cover by the boss in the spool cover rotates, the action that spool is rolled up put curtain, because it is the direction that coil diameter is enlarged that the fluting that puts is being pressed the direction of the turn end of perk, therefore, under the effect of the fluting that puts, coil diameter enlarges, turn is successfully rotated along the axle on the support, when external force is wanted rotating scroll, make boss in the spool cover press the turn end of perk by the spool cover that is fixed together with spool, owing to be the direction that coil diameter is dwindled to the pressure direction of turn end, make coil diameter dwindle and tightly banding on the support the axle on, spool can not be rotated.It processes this kind curtain roller blind device with plastic monoblock with support, and the rigidity of plastics is much lower with respect to turn, like this, in use, plastic shaft is damaged under the effect of turn easily, and, when turn rotates along plastic shaft, frictional force is big, and it is not smooth to rotate.

Summary of the invention:

Goal of the invention of the present utility model be to provide on a kind of support the axle do not allow flimsy, when turn rotates along plastic shaft, rotate very smooth curtain roller blind device.

The utility model is to realize like this, comprise support, be arranged on the axle on the support, the pelletron sprocket wheel that has cover, be socketed in the spool cover that puts, be fixed on the spool that spool puts, cover on the pelletron sprocket wheel rotates on the axle that is actively socketed on support, on axle, be provided with turn, tilt upward in the two ends of turn, putting on the pelletron sprocket wheel is provided with fluting, the trough rim of fluting is positioned at the outside at the turn two ends that are upturned, in the spool cover, be provided with boss, boss is positioned at the inboard at the turn two ends that are upturned, its special feature is that the axle on the support is a metal shaft, and metal shaft is fixed on the support.During work, because the rigidity of metal shaft is big, equally matched with the rigidity of turn, therefore, under the lock ring of turn, also be not easy to suffer damage, and, under smooth the metal shaft surface and the frictional force between turn, turn after the expanded in diameter is because little with the frictional force of metal shaft, the rotation of turn on metal shaft is very smooth, and when external force is wanted rotating scroll, the turn lock ring is along with the increase of the power of rotating scroll and increase and turn acts on clamping force on the metal shaft, like this on metal shaft, frictional force between turn and metal shaft can not rotate turn along metal shaft also along with the increase of the power of rotating scroll and increase and be enough to overcome the power of rotating scroll.

Here, be securely fixed on the support in order to make metal shaft, support is provided with axle sleeve, and metal shaft is embedded on the axle sleeve.

The utility model compared with the prior art, have on the support the axle do not allow flimsy, when turn rotates along plastic shaft, rotate very smooth advantage.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment:

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As shown in the figure, the utility model is mainly by support 1, be arranged on the axle 2 on the support 1, the pelletron sprocket wheel 4 that has cover 3, be socketed in the spool cover 5 on 3, the spool 6 that is fixed on the spool cover 5 constitutes, cover 3 on the pelletron sprocket wheel 4 rotates on the axle 2 that is actively socketed on support 1, on axle 2, be provided with turn 7, tilt upward in the two ends 8 of turn 7, on the cover on the pelletron sprocket wheel 43, be provided with fluting 9, the trough rim 10 of fluting 9 is positioned at the outside at the turn two ends 8 that are upturned, in spool cover 5, be provided with boss 11, boss 11 is positioned at the inboard at the turn two ends 8 that are upturned, its special feature is that the axle 2 on the support 1 is metallic steel axles, support 1 is provided with axle sleeve 12, and stainless steel shaft 2 is embedded on the axle sleeve 12.

Claims

1, a kind of curtain roller blind device, comprise support, be arranged on the axle on the support, the pelletron sprocket wheel that has cover, be socketed in the spool cover that puts, be fixed on the spool that spool puts, cover on the pelletron sprocket wheel rotates on the axle that is actively socketed on support, on axle, be provided with turn, tilt upward in the two ends of turn, putting on the pelletron sprocket wheel is provided with fluting, the trough rim of fluting is positioned at the outside at the turn two ends that are upturned, in the spool cover, be provided with boss, boss is positioned at the inboard at the turn two ends that are upturned, it is characterized in that the axle on the support is a metal shaft, metal shaft is fixed on the support.

2, curtain roller blind device according to claim 1 is characterized in that metal shaft is the metallic steel axle.

3, curtain roller blind device according to claim 1 and 2 is characterized in that support is provided with axle sleeve, and metal shaft is embedded on the axle sleeve.