CN200943432Y

CN200943432Y - Self-precipitation type curtain controller

Info

Publication number: CN200943432Y
Application number: CN 200620129775
Authority: CN
Inventors: 林炎盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-14
Filing date: 2006-09-14
Publication date: 2007-09-05
Anticipated expiration: 2016-09-14

Abstract

The utility model provides an automatic dropping controller for window curtains. Encased in a shell, the controller comprises a gear wheel for bead chains, a clutch, a flat-wire spring, a sleeve, a worm wheel, and a worm, with the gear wheel extending several fanning vanes outwards from the right circumferential surface and forming a liner on the left end, the clutch being arranged in the liner, the left liner of the gear wheel containing two symmetrical buttons on the internal wall which fit close to the rotary screw threads on the outer wall of the clutch so that the buttons move at the screw threads, the flat-wire spring being mounted on the inside diameter on the right end of the sleeve, the axis on the right end of the worm wheel locating and connecting the above elements; the gear-shaped boss on the top of the clutch corresponding to and engaging the boss on the tail end of the axis of the worm wheel, the worm being connected to a worm liner and fixed to a seating groove on the shell through a connecting piece, a fitting pin and a worm base, and the worm assembly being arranged into the seating groove inside the shell so that the worm wheel engages the worm. With the utility model, the dropping curtain will not lose balance because of unequal strength applied by one's hand to draw the bead chain, but drop automatically and one does not have to draw the bead chain.

Description

A kind of self-declining type curtain controller

Technical field

The utility model belongs to a kind of plant equipment that curtain moves up and down of controlling, and is specifically related to a kind of self-declining type curtain controller.

Background technology

At present, in the process that existing curtain controller moves up and down, need bead line always, till rising, landing, especially in the process of landing, because the action of gravity of curtain itself, falling speed can be very fast, as do not have tractive force upwards to pull the falling speed of control curtain, must cause curtain to damage, make that like this staff must continue to hold the pearl line to be made it to fall when operation.

Summary of the invention

For solving the deficiency of above-mentioned background technology, the purpose of this utility model is that solution can land curtain in the process that descends voluntarily, need not continue to hold the landing of pearl line.

For achieving the above object, the technical solution of the utility model is, a kind of self-declining type curtain controller by housing parcel, includes arrangement of clutch and deceleration device, and arrangement of clutch runs through by the axle core with deceleration device and links to each other.Described arrangement of clutch includes bead sprocket wheel, clutch, lenticular wire spring and sleeve, the protruding some sector circular leafs of described bead sprocket wheel right-hand member circumferential surface, the bead sprocket wheel left end forms axle sleeve, clutch places in the axle sleeve, having two symmetries to drive point on the inwall of bead sprocket wheel left end axle sleeve just in time matches with the telescopic chute of clutch outer wall, the drive point is moved in this telescopic chute, and then make clutch flexible, reach the purpose of clutch.The lenticular wire spring is contained on the internal diameter of sleeve right-hand member and is meshing with the Spring Card ditch on the clutch, through the rotation of bead sprocket wheel, to drive the clutch rotation.Described deceleration device, include worm gear and worm screw, the axle core of worm gear right-hand member is located by connecting each device of arrangement of clutch, the gear-like boss on clutch top is corresponding meshing with the boss of worm-wheel shaft core end, worm screw is fixed on worm screw on the worm screw axle bed by worm screw lining, pilot pin, again whole worm screw combination is inserted in the axle bed groove in the housing, make worm gear and worm engaging.

The utility model has the advantages that in the process that descends, can not produce owing to the dynamics inequality that pulls the pearl line causes the unbalance phenomenon of curtain, curtain can land automatically, need not continue to hold the landing of pearl line.

Description of drawings

Fig. 1 is the general assembly schematic diagram of the utility model embodiment.

Fig. 2 is the left shell schematic internal view of the utility model embodiment.

Fig. 3 is the clutch schematic diagram of the utility model embodiment.

Fig. 4 is the structural representation of the utility model embodiment.

Fig. 5 is the left shell elevational schematic view of the utility model embodiment.

Fig. 6 is the rail profile schematic diagram of the utility model embodiment.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

Shown in Fig. 1,2,3,4,5, a kind of self-declining type curtain controller by housing parcel, is characterized in that also including arrangement of clutch and deceleration device, and arrangement of clutch runs through by the axle core with deceleration device and links to each other.Described arrangement of clutch includes bead sprocket wheel 2, clutch 3, lenticular wire spring 4 and sleeve 5, the protruding some sector circular leafs of described bead sprocket wheel 2 right-hand member circumferential surfaces, bead sprocket wheel 2 left ends form axle sleeve, clutch 3 places in the axle sleeve, having two symmetries to drive point 21 on the inwall of bead sprocket wheel 2 left end axle sleeves just in time matches with the telescopic chute 31 of clutch outer wall, drive point 21 is moved in this telescopic chute 31, and then make clutch 3 flexible, reach the purpose of clutch.Lenticular wire spring 4 one ends have the abut 41 of an inside bending, lenticular wire spring 4 is contained on the internal diameter of sleeve 5 right-hand members, abut 41 places in the Spring Card ditch 32 on the clutch 3, the abut 41 that this moment, the Spring Card ditch 32 on the clutch 3 was stirred on the lenticular wire spring 4 diminishes lenticular wire spring 4 external diameters, and lenticular wire spring 4 can free rotation sleeve 5 in.Otherwise when bead line not, then the Spring Card ditch 32 on gravity driving effect clutch 3 of the curtain abut 41 of oppositely stirring lenticular wire spring 4 props up the internal diameter of sleeve 5 with the external diameter of expansion lenticular wire spring 4, forms braking action.Through the rotation of bead sprocket wheel 2, to drive clutch 3 rotations.Described deceleration device, include worm gear 6 and worm screw 7, the axle core of worm gear 6 right-hand members is located by connecting each device of arrangement of clutch, the worm gear clutch boss 61 of 6 core ends of gear-like clutch boss 33 and worm gear on clutch 3 tops is corresponding meshing, worm screw 7 is fixed on worm screw on the worm screw axle bed 14 by worm screw lining 9, pilot pin 10, again whole worm screw combination is inserted in the axle bed groove 81 in the housing 8, make worm gear 6 and worm screw 7 engagements.The power transmission shaft 12 of left shell 8 front ends inserts in the worm gear 6 left end axle sleeves, and there is the boss of a support bead sprocket wheel 2 internal axle sleeves at right shell body 1 middle part, and all devices run through connection like this, can rotate mutually by gear.Clamp 13, bolt 11, fixing from drop controller and guide rail 15 (as shown in Figure 6).Pearl line (being used to spur the line of curtain) is wound between two row's sector circular leafs of bead sprocket wheel 2 right-hand members, pulling pearl line, bead sprocket wheel 2 is just being changeed, this moment, curtain rose, oppositely spur during decline, clutch 3 moves to end according to outer wall telescopic chute 31, this moment, clutch 3 left end clutch boss 33 broke away from worm gear right-hand member clutch boss 61, because curtain has an acceleration of gravity in the process that descends, curtain can descend fast, therefore with worm gear 6 and worm screw 7 engagements, the decelerating effects of worm gear 6 anti-drive worm screws 7, the speed that curtain is descended become even sliding.

Claims

1. a self-declining type curtain controller by housing parcel, is characterized in that also including arrangement of clutch and deceleration device, and arrangement of clutch runs through by the axle core with deceleration device and links to each other.

2. arrangement of clutch according to claim 1, it is characterized in that including bead sprocket wheel, clutch, lenticular wire spring and sleeve, the protruding some sector circular leafs of described bead sprocket wheel right-hand member circumferential surface, the bead sprocket wheel left end forms axle sleeve, clutch places in the axle sleeve, has two symmetries to drive point on the inwall of bead sprocket wheel left end axle sleeve and just in time matches with the telescopic chute of clutch outer wall, makes to drive point and move in this telescopic chute, and then make clutch flexible, reach the purpose of clutch.The lenticular wire spring is contained on the internal diameter of sleeve right-hand member and is meshing with the Spring Card ditch on the clutch, through the rotation of bead sprocket wheel, to drive the clutch rotation.

3. deceleration device according to claim 1, it is characterized in that including worm gear and worm screw, the axle core of worm gear right-hand member is located by connecting each device of arrangement of clutch, the gear-like boss on clutch top is corresponding meshing with the boss of worm-wheel shaft core end, worm screw is fixed on worm screw on the worm screw axle bed by worm screw lining, pilot pin, again whole worm screw combination is inserted in the axle bed groove in the housing, make worm gear and worm engaging.