KR200404345Y1 - Projector Lift Device - Google Patents

Abstract

This proposal relates to a project-driven lift for storing and exposing a project on a ceiling of a building. The project-driven lifter is installed in an empty space inside a ceiling and is exposed to the outside. It is divided into a case, and the movement of the case moving up and down minimizes the movement of the X-shaped guide to the side. The movement of the up and down is flat, and the coil type cable is mounted in a compound pulley to stack on the upper cylindrical motor. To move up and down by winding or unwinding.In addition, after installing the project, the electric project is operated using the infrared remote control of the project (all projects are provided with the infrared remote control). Made into operation Of the work done by the switch operation is a load, characterized

Description

Projector Lift Device {omitted}

This proposal relates to a project electric lift that raises and lowers projectors or cameras, and is an improvement of the electric lift device for lifting and lowering, ie storing and exposing the ceiling.

Conventional electric lifts are designed in a fixed pulley system with a load = force (W = F) structure, which increases the weight of a high-power project or increases the stroke length (elevation distance: height) due to the high ceiling structure. When the X-shaped guide is added, the X-shaped guides are all made of metal, so the upper and lower traction motors are replaced with higher-powered motors due to the increased guide weight and project weight, so high cost and high power consumption are essential. There has been an increase in the economic burden, and there were inconveniences and shortcomings of operating the electric lift by installing the electric lift, operating the remote control switch for the electric lift, and operating the project power operation switch after the completion of the operation.

In order to improve the above-mentioned problems and problems, this paper has been experimenting and researching for a long time, and as a result, the pulley method of pulling up and down the electric project lift is a compound pulley method (F = 1 / 2.n wn :) It is economical to reduce the cost by using a low-power motor by adding a pulley when the weight is increased, and the X-type guide is extruded and made of aluminum to reduce the weight and to form a groove formed at the side during extrusion. It handles the connection wiring of the project with wire saddles, and can also run the project once through the infrared cylindrical cone prism attached to the built-in case using the infrared remote control provided at the time of purchase. After the operation, the current sensor senses the current of the project and if a certain level of current flows, the falling relay of the electric lift Operation, and to project the electric lifter descent (if there is a defect where a project is operating by lighting the light source lamp is current-consuming)

The lift of the electric lifter is a current that decreases when the project is stopped and the lift is operated by the lift relay.

Inside the body 100 embedded in the ceiling, the belt 150 is wound around the motor 160, and the belt 150 fixed at both ends of the adjustment bolt 140 has a plurality of pulleys 130 at the upper and lower ends thereof. 131 is connected to the lower pulley 131 is fixed to the upper plate of the elevating case 110, the elevating case 110, the bottom is composed of the up and down moving plate 180 and the conical prism 170 is fitted Inside the case 110, the project 181 was mounted, both sides of the X-shaped guide 120 is equipped with a center and one end 121 is fixed to the adhesion and the fixed guide pin 122 is a guide groove 123 ( 124 is configured to guide the sliding nut or roller to be slid guided

On one side of the up and down plate 180 is built in the cylinder of the upper and lower conical prism 170 by the control of the control 172, the upper and lower conical reflection prism is built in the opposite direction and reflects the infrared irrespective of the incident direction of the receiving window 171 The received project 181 is connected to the cylindrical motor 160 via the current sensing circuit board 165, the driving relay 164, and the motor terminals 162 and 163. Motor pipe groove 161 is configured on both sides, the adjustment bolt 140 is coupled to the nut 141, the flat belt 150 is characterized by connecting the pin rod 151 to the adhesive portion 152 of both ends by sandwiching Will

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 and 2 are respectively developed views according to the present invention, and as shown in the drawing, the project lift according to the present case is embedded in the main body case 100. When the cylindrical motor 160 fixed inside the case rotates in the direction of the arrow shown in the drawing, the left and right stainless steel belt 150 is released from the cylindrical motor 160, and the upper and lower pulleys 130 and 131 for the guide are At this time, the loosening case 110 is lowered by the length of the loosening case 110 by the weight of the elevating case 110, and the released belt 150 is weakly shaken, in order to catch the shake. Calm the shake with the X-shaped guide 120 to the side, one of the coalescing shaft 121 of the X-shaped guide 120 is fixed to the bearing, the other end high The positive guide pin 122 operates while moving in the horizontal direction along the upper and lower guide grooves 123 and 124, and the stainless steel belt 150 has a fine adjustment bolt to smooth the winding or loosening operation and finely adjust the left and right balance ( 140) and the fixed nut 141 to adjust the balance of the left and right to form a parallel and the inner case 110 was produced to be raised and lowered in the vertical direction smoothly.

FIG. 3 is a view showing the inner elevating case 110 being raised and assembled, and when assembled, the circumferential motor 160 rotates in the opposite direction to the arrow direction shown in the drawing, and conventionally uses a fixed pulley method (w load = F force). Although a high output motor was used, as shown in FIG. 1, a composite pulley method of forming an upper pulley 130 installed on an upper case of a main body and a lower pulley 131 installed on an upper and lower lifting case 110 (F = 1 / 2n w) to be assembled by towing as a configuration that can be operated using a low-power columnar motor 160, the X-shaped guide 120 is moved horizontally to a predetermined position when the lifting case 110 inside the project lift is assembled While shaking shakes

4 is an exemplary view in which the ceiling plate 182 is installed and folded, and the lifting case 110 of the project lift is operated by using the infrared wireless remote control 172 when the lifting case 110 is assembled by lifting. The conical prism exposed to the plastering plate 180 of the project lift movement elevating case 110 installed on the ceiling plate 182 is an infrared wireless remote control 172 of the project 181 ( Emit infrared radiation toward 170

Then, the conical prism 170 reflects the received infrared rays to the upper side, and the upper conical prism 170 reflects the infrared rays to the inside, and inside the elevating case 110 in front of the project 181 lift inside the front and the rear inside Infrared rays are reflected by the aluminum foils 102 and 103 on the front and back surfaces bonded to the inside, and received by the front receiving window 171 and the rear receiving window 171 'of the project 181. The furnace project 181 turns the power on.

Due to the sealed internal structure, diffused reflection occurs and the reflected infrared signal is received regardless of where the front receiving window 171 and the rear receiving window 171 'of the projector 181 are operated, and the projector 181 operates. When the projector 181 operates, the projector lowering case 110 automatically descends to start screen projection. When the projector descends, the projector 181 is exposed so that the projector 181 can be operated at any time using the remote control 172.

5 is a diagram circuit diagram for operating a project 181 lift using an infrared remote control 172. When the infrared wireless remote control 172 of the project emits the infrared signal to the conical prism 170, the project power ON signal is emitted. Since the lift is sealed by the elevating plate 180, the conical prism 170 receives the infrared signal and emits infrared rays through the prism, and the reception window 171 and the reception window 171 ′ in front of the project 181 are provided. The project 181 is turned on by the signal received by the

The above project is in standby mode when power is normally applied, so the power consumption is very small and when the power is turned on, the projection lamp is turned on to start projection. The power is consumed up to kilowatts, but the current sensor 165 senses the current and connects the power of the driving relay 164 of the columnar motor 160 to the motor lowering motor terminal 162 of the columnar motor ( When the columnar motor 160 operates, the project elevating case 110 descends to start projection, and when the project 181 is turned off by the remote control 172 again, the project 181 is a light bulb. Turn off the project 181 to cool the heat generated during projection to the appropriate temperature and reduce the current, the current sensor 165 detects this to drive the reel for driving the columnar motor 160 Operated by it to increase the motor terminal 163 for the columnar motor

The project elevating case 180 stops by rising and buying, and the columnar motor 160 has a limiting switch for raising and lowering therein, and also operates the project elevating case 110 for the initial installation or maintenance of the project lift. In order to install the manual switch 173

6 is a view showing a method of connecting and coupling the flat cable 150 to the columnar motor pipe 160. The cylindrical motor pipe is made of aluminum extrusion to produce circular grooves at intervals of 180 degrees, and the stainless steel frets are formed in the circular grooves of the pipe. Spot welding the adhesive portion 152 by making the end of the belt 150 circular, and joining the circular pin rod 151 to the cylindrical motor pipe groove 161 in the direction of the arrow at the end of the frit belt 150 manufactured in a circular shape. In addition, the other side is manufactured in the same way as the coupling method of the columnar motor to the fret belt adjusting bolt 140 and used in the direction of the arrow of (B) and fine adjustment of the horizontal adjustment using the adjusting nut 141 Adjust

Coupling degree of the pipe is as 162 of

Figure 7 is an exemplary view showing the extrusion manufacturing and wiring processing method of the X-shaped guide is connected to the X-shaped guide in two more exposure of the project, the X-shaped guide inside the inside of the square pipe shape to reduce the weight Make the wires not wired by guiding the grooves so that they do not rotate when using wire saddle

In this way, the project lift lowering case uses a small output motor to simplify the operation of the user several times, and it is effective to use a small output motor even when the project lift uses a high stroke.

1 is an overall front view of the electric lift in this article

Figure 2 is an exemplary side view of the X-shaped guide lowered state of the present invention

Figure 3 is an exemplary view of the folded state of the X-shaped guide in the present proposal

Figure 4 is an operation example of the configuration of the infrared reflecting conical prism with the electric lift in this article ascended and mounted on the ceiling;

Fig. 5 is a circuit diagram of a current sensing configuration showing an operation diagram of an infrared remote coltrol in this article.

Figure 6 is an exploded perspective view of the cylindrical motor flat cable in this article

Figure 7 is an example of a redistribution process using wire saddle connecting two X-shaped guide of the present invention

Claims (1)

The elevating plate 180 and the elevating case 110 having the project 181 built in the ceiling of the building are connected to the X-shaped guide 120 for storing and exposing the electric lift body 100 in the upper and lower guide grooves 123. Means for guiding folding so as not to shake according to 124, having a cylindrical motor 160, upper and lower composite pulleys 130, 131 and the adjusting bolt 140, the adjusting nut 141, the pin rod 151 on the upper body The pratt belt 150 is connected to the cylindrical motor 160 constituting the pratt belt 150, and adjusted by the adjustment bolt 140 to lift and lower the case 110 and the elevating plate 180, which is the project 181. Means for adjusting the height of the elbow, and equipped with an up-down facing conical prism 170 constituted on the elevating plate 180 which operates up and down of the electric lift body 100 which is a fixed case installed on the ceiling surface. Descent operation consisting of optical transmission means and current sensor Lift the project features a star circuit configured to control means.