CN2135985Y

CN2135985Y - Electric curtain

Info

Publication number: CN2135985Y
Application number: CN 92218203
Authority: CN
Inventors: 崔飚
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-27
Filing date: 1992-06-27
Publication date: 1993-06-16
Anticipated expiration: 2002-06-27

Abstract

The utility model relates to an electric curtain. The electrical machine of the electric curtain is directly fixed on the top plate of a curtain box, and a driving wheel is fixed on the shaft end of the electrical machine and is connected with a driven wheel via a traction rope. One head of the traction rope is tightly tied on one end of a spring, and the other head is enwound on a limit switch bar. The other end of the spring is hooked by the limit switch bar, and the sliding cover of the lower end of the limit switch bar is movably sheathed in a sliding bar. The sliding cover and the sliding bar are respectively provided with one and a plurality of sliding rings, and a window cloth is connected to the sliding rings via clips. The two ends of the interior of the top plate of the curtain box are respectively provided with a left limiting switch and a right limiting switch which control the rotation of the electrical machine. The utility model has the advantages of stable running, convenient operation and wide applicability, and the utility model can be opened and closed at will.

Description

Electric curtain

The utility model relates to a kind of electrically driven curtain.

Because the kind of the existing selected motor of various electrically driven curtains and a whole set of control system and the multistage kind of drive, make the appliance circuit and the complicated in mechanical structure of electrically driven curtain, part processing precision requires high, and manufacturing cost is expensive, the scope of application is little, transmission weak effect and maintenance difficult.So, a kind ofly can fail so far on market, to meet for the utility model electrically driven curtain that manufacturer and user accept to welcome with consumers in general.

The purpose of this utility model be exactly provide for the problem that solves above-mentioned existence a kind of simple in structure, cost is low, applied widely, reliable transmission, and can arbitrarily control the electrically driven curtain of Curtain switch amplitude.

The purpose of this utility model is achieved in that

---I type and electrically driven curtain---at a slow speed II type in same overall structure with use to have on the basis of same specification motor and be applicable to that respectively the curtain area varies in size and weight has other two kinds of models, i.e. quick electric curtain.It mainly is made up of following parts:

One, curtain closes: 1. face shield 2. top boards 3. backboards;

Two, dynamical system: 1. single-phase AC synchronous motor;

Three, transmission system: 1. driving wheel 2. pull ropes 3. degree of tightness springs

4. limit switch bar 5. driven pulleys 6. follower shafts;

Four, guide track system: 1. 2. slip ring 3. left and right sides supports of slide bar (guide rail)

4. intermediate support;

Five, control system: 1. two-direction switch 2. left and right sides limit switches

3. indication color lamp;

It more than is the composition of I type parts that electrically driven curtain has.In addition, in order to overcome because the big frictional force that the gravity of large tracts of land (length is generally more than three meters) bedding casement produces between slide bar and slip ring, prevent to skid between driving wheel and the pull rope, so will increase by a worm and wormwheel reducing gear in the dynamical system of I type structure, under situation about using, make transmission system obtain bigger torque with a kind of specification motor.This is electrically driven curtain at a slow speed---the II type.

Structure of the present utility model such as figure one are shown in the figure two.It is characterized in that:

Figure one, the quick electric curtain---the I type.

Motor (I-1) directly is vertically fixed on curtain to be closed on the top board (I-2); Driving wheel (I-3) is fixed in the axle head of motor (I-1) by holding screw (I-4) and is connected with driven pulley (I-8) by the pull rope (I-5) that is enclosed within on the driving wheel (I-3); Pull rope (I-5) is before formation O type sealing ring, an end that tightly ties up to the spring (I-6) of automatic adjusting degree of tightness, the other end then is wrapped on the limit switch bar (I-7), the other end of spring (I-6) catches on limit switch bar (I-7) again, so just makes between driving wheel (I-3), pull rope (I-5) and driven pulley (I-8) three to keep stable frictional force and be unlikely to skid mutually.This is the architectural feature of transmission system.In the guide track system thereunder, the two ends of device and centre are equipped with respectively and are fixed on curtain and close left and right support (I-10, I-16) and intermediate support (I-14) on top board (I-2) and the backboard (I-9).Intermediate support is to be used to split curtain.Two ends be connected respectively with each support with screw and strain exceptionally straight slide bar (I-11) its mainly to act on be the gravity that bears casement; Be with sliding sleeve ［ both are combined into limit switch bar (I-7) ］ on the slide bar (I-11) with the gag lever post welding; Sliding sleeve and slide bar are equipped with one and a plurality of slip rings (I-12) respectively, and casement catches on slip ring (I-12) after then being clamped by curtain clip (omitting among the figure) again.Above transmission system, curtain closes the left and right limit switch (I-13, I-15) that the stall of control motor is equipped with at the inner two ends of top board (I-2) respectively; (figure omits to be used for controlling the two-direction switch of motor positive and inverse on this device way circuit, have three gears: left, center, right) connect (as shown in Figure 1, motor is installed in the left side of this device, two-direction switch is stirred towards the right side) normally-closed contact of right limit switch (I-15), make motor just change (counter-rotating), this moment, curtain was all opened; Limit switch bar (I-7) contacts with right limit switch (I-15) under the drive of pull rope (I-5) and the normally-closed contact of this switch is cut off, motor stall, curtain Close All at this moment.Simultaneously, the normally opened contact of (I-15) of right limit switch is closed and make and be installed in the circuit that curtain closes the inner indication color lamp (omitting among the figure) of top board (I-2) and be switched on.This lamp not only is used for indication explanation motor circuit and really is cut off, but also it is quiet and tastefully laid out luxurious to make that indoor environment atmosphere is decorated.Two-direction switch is stirred towards a left side (with direction was opposite just now) through middle gear, and the normally-closed contact of left limit switch (I-13) is connected, motor counter-rotating (just changeing) ...Move the samely, direction is opposite.So just, whole processes of opening and closing of curtain have been realized.

If make curtain be parked in a certain position (this moment, no matter cord was standard-sized sheet or full cut-off), as long as with two-direction switch in situ through in bay stir in the opposite direction, when cord runs to desired location, again two-direction switch is got back to the centre position, all be cut off because of the whole circuit in the device this moment, so cord is out of service at once, Using such method operation two-direction switch just can be realized the cord switch amplitude hope of size arbitrarily.

As figure two, electrically driven curtain at a slow speed---II type be with the identical basis of I type overall structure on, for make transmission system obtain bigger torque to overcome because the big frictional force that the gravity of large tracts of land (length is generally more than three meters) bedding cord is produced between slide bar and slip ring, so, the power of motor in the I type is directly transmitted the mode of transmitting that changes into by driving wheel after worm and wormwheel slows down.Its architectural feature is: motor (II-1) is installed on the support case (II-2), and support case (II-2) then is to be installed on the backboard (II-3) that curtain closes, and motor (II-1) answers horizontal vertical in backboard (II-3).Change the driving wheel of I type into worm screw (II-4) and mesh at the axle head of motor (II-1) with worm gear (II-5).Its kind of drive is: pull rope (II-7) is enclosed within on the driving wheel with worm gear (II-5) one, is connected with driven pulley (II-8) then; Worm gear (II-5) also is fixed on the support case (II-2) by worm-wheel shaft (II-6) perpendicular to worm screw (II-4).Because the gearratio of worm and wormwheel is big, make transmission system obtain bigger torque, so this kind of drive can drive bigger and heavier casement operation under the situation of using same specification motor.Its method of operating and running and I type are identical.

The utility model is to design through repetition test, and by the interruption of long period and operation continuously, its advantage is: attractive in appearance luxurious, simple in structure; Cheap, applicability is wide.Easy to operate, safe in utilization; Switch is random, reliable.

Claims

1, a kind of electrically driven curtain, it includes pelmet top board (I-2), backboard (I-9), a left side, right support (I-10, I-16) and intermediate support (I-14), slide bar (I-11) two ends are fixed on a left side, right support (I-10, I-16) on, it is characterized in that motor (I-1) directly is vertically fixed on the pelmet top board (I-2), driving wheel (I-3) is fixed in the axle head of motor (I-1) by holding screw (I-4) and is connected with driven pulley (I-8) by the pull rope (I-5) that is enclosed within on the driving wheel (I-3), pull rope (I-5) is before formation 0 type sealing ring, an end that tightly ties up to the spring (I-6) of automatic adjusting degree of tightness, the other end then is wrapped on the limit switch bar (I-7), the other end of spring (I-6) catches on limit switch bar (I-7) again, make driving wheel (I-3), keep stable frictional force between pull rope (I-5) and driven pulley (I-8) three and be unlikely to skid mutually, the lower end of limit switch bar (I-7) is a sliding sleeve, they are whole the connection, this sliding sleeve is actively set on the slide bar (I-11), sliding sleeve and slide bar are equipped with one and a plurality of slip rings (I-12) respectively, and the left side of control motor stall is housed respectively at the inner two ends of pelmet top board (I-2), right limit switch (I-13, I-15).

2, by the described electrically driven curtain of claim 1, it is characterized in that skidding between driving wheel and the pull rope for preventing, increase by a worm and wormwheel reducing gear, its support case (II-2) is installed on the backboard (II-3) of pelmet, motor (II-1) is installed on the support case (II-2), and motor (II-1) answers horizontal vertical in backboard (II-3), the axle head of motor (II-1) is connected with worm screw (II-4), worm screw (II-4) and worm gear (II-5) engagement, pull rope (II-7) is enclosed within on the driving wheel with worm gear (II-5) one, still be connected then with driven pulley (II-8), worm gear (II-5) is perpendicular to worm screw (II-4), and is fixed on the support case (II-2) by worm-wheel shaft (II-6).