CN202791822U

CN202791822U - Venetian blind type shading device

Info

Publication number: CN202791822U
Application number: CN2012203916302U
Authority: CN
Inventors: 曹建厂
Original assignee: JIANGXI BRIGHT AV SOLUTIONS CO Ltd
Current assignee: Beijing Bright Cultural & Creative Co ltd
Priority date: 2012-08-08
Filing date: 2012-08-08
Publication date: 2013-03-13
Anticipated expiration: 2022-08-08

Abstract

A venetian blind type shading device comprises a shading frame, baffles, a shading component, steel wire ropes, an electrical appliance box and a main control circuit, wherein the shading component is venetian blind type and is formed by a blind containing box and a venetian blind, the blind containing box is installed on the shading frame, one end of the venetian blind is fixed in the blind containing box, blind penetrating ropes are respectively arranged at the upper end and the lower end of the venetian blind, a blind pulling rope is arranged in the middle of the venetian blind, one end of the blind pulling rope is fixed on the venetian blind, the other end of the blind pulling rope is connected with the electrical appliance box, two baffles provided with semi-circle holes are arranged in the shading frame and are spliced to form a round-hole-shaped light emitting port, the venetian blind is fixed at end and can be winded on a roller blind shaft in the blind containing box, roller springs are arranged at two ends of the roller blind shaft, the electrical appliance box is arranged at the other side of the shading frame, and a motor, the main control circuit, a driving power and a limit switch are arranged in the electrical appliance box. The venetian blind is used for shading, due to the fact that gaps are arranged between blind sheets of the venetian blind, ventilation inside and outside a lamp body can be maintained, thermal dissipation of the lamp body is facilitated, service life and safety of lamps are improved, efficiency of working staff is increased, and performance effect is improved.

Description

A kind of blind formula shade

Technical field

The utility model relates to lighting field, especially for high-power, the outlet diameter a kind of blind formula shade greater than the large-scale light fixture of 500mm.

Background technology

In order to make performance that vigor more be arranged, reach more lively effect, large-scale performance theater all adopts projection magic lamp to change patterned background and various scene usually when performance, and need to block light source when changing background, so that theater manager personnel smoothly backgrounds change, this just need to install at the light-emitting window place of light fixture and be used for blocking the optical gate class device of light source, in order to easily light source is blocked or open.Traditional projection magic lamp optical gate is only applicable to the diameter of light-emitting window less than the light fixture of 200mm, be that 200820078686.6 a kind of light-regulating light gate, the patent No. are a kind of Split-type optical shutter of 200820233727.4 such as the patent No., although can block light-emitting window, be only limited to the small-power projection magic lamp on the structure.

Yet, when night came, the projection magic lamp power that the power of coliseum, needed lamp of outdoor performance site is used than large-scale arenas is much larger, and the light-emitting window diameter is more than 500mm, used lamp light source mostly is dysprosium lamp, dysprosium lamp is a kind of of metal halide lamp, is to start by high-frequency and high-voltage, need to be furnished with starting drive when light fixture starts, start-up time is long, can not thermal starting, need after the light fixture cooling, just can carry out restarting, and restarting must the interval more than 10 minutes.Need handoff scenario in two performances or match interval, when not needing strong illumination, can only powered-down a period of time, make troubles to work on the spot, affect performing effect.The heat that produces when working in view of large-power lamp is very large, about the temperature of light fixture is spent up to Celsius 300, it all is to make with metal that general light fixture blocks optical gate, be installed in light fixture light-emitting window the place ahead, contradiction but be in the light and dispel the heat, heat can only shed from the rear of lamp body or light fixture, powerful light fixture, such as the light fixture more than the 2000W, the heat of lighting rear release is very large, if blocking optical gate makes of metal, not only volume is large, and the weight of light fixture can add much largerly, causes simultaneously heat to distribute, safety is used in impact, shortens the service life of light fixture.

The utility model content

The purpose of this utility model is to propose a kind of blind formula shade, has solved that existing shade volume is large, weight is large, and mobile inconvenience, and heat radiation and poor safety performance cause light fixture low problem in service life.

For reaching this purpose, the utility model by the following technical solutions:

A kind of blind formula shade, comprise shading framework, baffle plate, light shield device, steel wire rope, electrical appliance kit and governor circuit, light shield device is the blind formula, it is fixed on the blind of receiving in the curtain box and forms by being contained in receipts curtain box on the shading framework and an end, described blind respectively has up and down one and wears the curtain rope, the centre has an end to be fixed on the blind, and what an end was connected to the electrical appliance kit place draws the curtain rope.

Preferably, be provided with two with the baffle plate of semicircle orifice in the described shading framework, be spliced into the light-emitting window of circular hole, one side of shading framework is installed with receives the curtain box, in the described receipts curtain box curtain rolling shaft is installed, an end of blind is fixed on the curtain rolling shaft, and can be wrapped on the curtain rolling shaft simultaneously, described curtain rope one end that draws is fixed on the blind, and the line that the other end is wrapped in the electrical appliance kit is taken turns.

Preferably, in the described electrical appliance kit motor is installed, the output shaft of described motor is fixedly connected with the line wheel.

Preferably, electric-control system and driving power are installed in the described electrical appliance kit, described governor circuit, motor and driving power three are electrically connected.

Preferably, in the described electrical appliance kit limit switch is installed, described limit switch is electrically connected with governor circuit.

The utility model is simple in structure, and is with low cost, easy to operate, adopt the light shield device of blind formula, owing between the curtain sheet of blind the slit is arranged, can keep the inside and outside circulation of air of lamp body, be conducive to the heat radiation of lamp body, improve service life and the security of light fixture, adopted governor circuit and the limit switch of electric-control system to control, cooperated motor, realized the automation of shading and bright dipping, save human resources, improved staff's efficient, improved performing effect.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is among Fig. 1 during the blind retracted state, receives the structural representation after curtain lid and electrical equipment lid remove.

Among the figure:

1, main frame; 2, blind; 3, receive the curtain box; 4, draw the curtain rope; 5, baffle plate; 6, electrical appliance kit; 7, wear the curtain rope; 8, curtain rolling shaft; 9, wind spring; 10, motor; 11, draw the curtain reel for rope; 12, limit switch; 13, governor circuit; 14, driving power.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.

Shown in Fig. 1 to 2, provided a specific embodiment of the present utility model, be illustrated in figure 1 as the schematic diagram that blind 2 is drawn out to a half, main frame 1 left side is equipped with and receives curtain box 3 among the figure, the right side is equipped with electrical appliance kit 6, have two baffle plates 5 of semi-circular hole in conjunction with the light hole that consists of a circle, blind 2 by several curtain sheets through up and down two wear curtain rope 7 and be in series, wherein the curtain sheet adopts light-proof material, be fixed with one in the centre position of blind 2 and draw curtain rope 4, its other end is connected to electrical appliance kit 6.

When being illustrated in figure 2 as blind 2 retracted state, receive the structural representation after curtain lid and electrical equipment lid remove, in receipts curtain box 3 inside a curtain rolling shaft 8 is installed, one end of blind 2 is fixed on the curtain rolling shaft 8, and can be wound thereon, the up and down two ends of curtain rolling shaft 8 respectively are equipped with a wind spring 9, elastic force by wind spring 9, can make blind 2 automatic drawing backs, curtain rope 4 one ends that draw on the blind 2 are fixedly connected on the blind 2, the other end is connected to drawing on the curtain reel for rope 11 in the electrical appliance kit 6, described drawing on the output shaft that curtain reel for rope 11 is fixedly mounted on motor 10; Driving power 14 and governor circuit 13 are installed in the inside of described electrical appliance kit 6, and limit switch 12, described driving power 14, governor circuit 13 and motor 10 are electrically connected.

When needing light, blind 2 is wound on the curtain rolling shaft 8, when the needs shading, start power supply, motor 10 drives and draws curtain reel for rope 11 to rotate, and draws curtain reel for rope 11 by drawing curtain rope 4 pulling blinds 2 to cover light-emitting window, when the head end of blind 2 arrives limit switch 12 place, blind covers whole light-emitting window, and this moment, limit switch 12 sent signal to

governor circuit

13,10 stop motions of control motor; When needs light, start by 10 counter-rotatings of governor circuit 13 control motor, blind 2 is under the restoring force effect of the wind spring 9 at curtain rolling shaft 8 two ends, and rollback is to curtain rolling shaft 8 again, and whole light-emitting window is open.

Because the utility model adopts the light shield device of blind formula, between the curtain sheet of blind the slit is arranged, in effective shading, can keep the inside and outside circulation of air of lamp body, be conducive to the heat radiation of lamp body, improve service life and the security of light fixture, adopted governor circuit and the limit switch of electric-control system to control, cooperated motor, realized the automation of shading and bright dipping, save human resources, improved staff's efficient, improved performing effect.

Claims

1. blind formula shade, comprise shading framework, baffle plate, light shield device, steel wire rope, electrical appliance kit and governor circuit, it is characterized in that, light shield device is the blind formula, it is fixed on the blind of receiving in the curtain box and forms by being contained in receipts curtain box on the shading framework and an end, described blind respectively has up and down one and wears the curtain rope, and the centre has an end to be fixed on the blind, and what an end was connected to the electrical appliance kit place draws the curtain rope.

2. a kind of blind formula shade according to claim 1, it is characterized in that, be provided with two with the baffle plate of semicircle orifice in the described shading framework, be spliced into the light-emitting window of circular hole, one side the curtain box is received in being installed with of shading framework, in the described receipts curtain box curtain rolling shaft be installed, one end of blind is fixed on the curtain rolling shaft, and can be wrapped on the curtain rolling shaft simultaneously, described curtain rope one end that draws is fixed on the blind, and the line that the other end is wrapped in the electrical appliance kit is taken turns.

3. a kind of blind formula shade according to claim 2 is characterized in that, in the described electrical appliance kit motor is installed, and the output shaft of described motor is fixedly connected with the line wheel.

4. a kind of blind formula shade according to claim 3 is characterized in that, electric-control system and driving power are installed in the described electrical appliance kit, and described governor circuit, motor and driving power three are electrically connected.

5. a kind of blind formula shade according to claim 4 is characterized in that in the described electrical appliance kit limit switch is installed, described limit switch is electrically connected with governor circuit.