KR20090122640A - Up and down type lighting tower - Google Patents

Abstract

PURPOSE: An up and down type lighting tower is provided to prevent a collision noise of a fixing frame and a lift frame by detaining the lift frame into XYZ axial direction. CONSTITUTION: A pole is vertically installed on a ground. A fixing frame(20) is installed in a top end of the pole. A lift frame(30) is moved top and bottom according to the pole. A lighting lamp is mounted in the lift frame. A lift driving unit drives the lift frame. An XY axial direction detaining unit detains the lift frame into an XY axial direction. A Z axial direction detaining unit detains the lift frame into a Z axial direction, and includes a detaining piece(70), a linear actuator(72), and a detaining rod(73). A remote control switch remotely controls the lighting lamp, the lift driving unit, and the Z axial direction detaining unit.

Description

Retractable Lighting Tower {Up and down type lighting tower}

Installed in outdoor spaces such as airports, parks or parking lots, it is designed to illuminate brightly at night. Especially, it relates to a lift-type lighting tower that maintains a stable fixed state at the upper part of the props. will be.

In general, an outdoor space requiring bright lighting at night, such as a park, an airport, or a harbor, has been installed and operated with an illumination tower in which a plurality of lights are installed on the upper end of the prop. In such a normal lighting tower, when the lighting is broken, the worker climbs directly to the upper part of the prop using a ladder car and replaces or repairs the lighting. There was a problem that followed the danger.

In order to solve this problem, the present inventors suspended the lighting lamps on the top of the pylon by hanging lighting lamps on the outer ropes, such as the Republic of Korea Utility Model No. 124767, and the inner ropes connected to the outer ropes were placed near the inner bottom of the steel tower. In the case where the drum is wound up and connected to the reducer dynamically, a coupling is installed on the reducer input shaft to hide it in the steel tower, and the shaft of the coupling is selectively connected to the shaft of the external steering wheel or the motor shaft. By releasing or lifting up the lighting stand, the company developed a light tower that can be easily managed without using additional equipment and prevents human accidents such as falling accidents.

In addition, as a prior art, as registered in the Republic of Korea Utility Model Registration No. 218042, a plurality of lights are installed at a suitable interval, the mobile unit is located in the center of the mobile unit fixed to the ground perpendicular to the ground, and installed on the top of the support Lifting type which consists of the fixed body part covered with the cover and the winch part which is installed in the lower part of the support and connects to the mobile part via the guide roller by wire, and the mobile part slides up and down on the support according to the pulling of the wire by the operation of the winch part. In the lighting tower, the locking plate is installed so as to be rotated by connecting the shaft pin eccentrically between the support plate fixed to the appropriate position of the outer upper portion of the mobile unit, and the fixing body is locked while contacting the upper and lower positions of the inner curved groove of the latch. There is a locking device for lifting and lowering light towers composed of locking pins respectively installed.

However, the above-mentioned preliminary registrations have a structure in which a locking pin is installed on the fixing frame of the upper part of the strut, and an eccentric pivot is installed on the lifting frame, so that the elevated lifting frame is fixed by the locking hook that hangs on the locking pin of the fixing frame. As the lifting frame is not firmly fixed to the fixed frame, it is not easy to feel stable, and when the lateral load is applied to the lifting frame by the wind, it shakes violently and repeatedly causes collision with the fixed frame, causing noise. In this case, there are problems such as frequent occurrence of damage caused by repeated impact of the lifting frame or the surrounding components.

In addition, the present inventors, in order to solve the problems of the above-mentioned pre-registrations, as in the Republic of Korea Patent No. 492176, a strut standing vertically as the required height, a fixing frame installed on the top of the strut, and the inner bottom of the strut And a lifting frame lifted as wires pulled or released through the fixing frame and a plurality of lights attached to the lifting frame, and the fixing frame is partitioned with constraining grooves at both ends in the longitudinal direction. The plate is installed horizontally at the bottom of both sides of the, and on both sides of the lifting frame has been developed a lifting-type lighting tower in which a pair of fitting protrusions are projected upward to correspond to the constrained grooves of the fixing frame.

The lifting light tower of the pre-registered patent is to restrain the lifting frame against the fixing frame by the restraint groove provided in the fixing frame and the fitting protrusion provided in the lifting frame so that the lifting frame does not shake even when the lateral load caused by the wind is applied. By avoiding the collision of the frame there is an effect to suppress the occurrence of noise and to prevent damage to the peripheral parts.

However, the lifting light tower of the pre-registered patent is simply to prevent the lifting frame from shaking due to the lateral load by the restraint groove provided on the fixing frame and the fitting protrusion provided on the lifting frame, so that it is installed in a region where frequent strong winds occur frequently. The restraint by the restraint groove and the fitting protrusion alone does not restrain the lifting frame sufficiently, causing the collision of the fixing frame and the lifting frame as the lifting frame is shaken, which may cause noise and damage to the peripheral parts.

Furthermore, if the wire is broken while the lifting frame is raised to the lighting position, there is no means for restraining in the Z-axis direction. Therefore, the lifting frame and the lights will fall and be damaged, as well as damage to the lifting frame and lights, There is a risk of causing property damage.

Therefore, an object of the present invention is to restrain the lifting frame in the XY axis direction as well as the Z axis direction with respect to the fixed frame, even if the XY axis direction external force and Z axis direction external force act on the lifting frame, the lifting frame is not shaken, the lifting frame and the fixing frame To prevent collision noise between the parts, and to prevent damage to peripheral parts, and to prevent the lifting frame and the light from falling down even if the wire breaks while the lifting frame is raised to the lighting position. To provide a liftable light tower.

The present invention, in order to achieve the above object, a strut which is erected vertically with a predetermined height, a fixing frame which is installed on the upper end of the strut, a lifting frame which is installed to be elevated along the support and is mounted with a lamp, Elevating driving means for elevating and elevating the elevating frame, an XY axis constraining step for constraining the elevating frame in the XY axis direction with respect to the fixing frame, and a Z axis constraining means for constraining the elevating frame in the Z axis direction with respect to the fixing frame. It provides a lifting light tower configured to include.

The Z-axis restraining means includes a restraining piece fixed to the lifting frame and having a restraining hole, a linear actuator fixed to the fixing frame, and adjusted by the remote control switch, and moved back and forth by the linear actuator to the restraining hole. It is configured to include a restraining rod that is fitted or detached with respect to.

The linear actuator may be configured as a solenoid to move forward when the power is applied so that the restraint rod is fitted into the restraint hole, and when the power is cut off, the restraining rod is retracted to detach the restraint rod from the restraint hole.

According to the lifting-type lighting tower of the present invention, even if the XY-axis external force and the Z-axis external force act on the lifting frame by restraining the lifting frame raised toward the fixed frame provided on the upper side of the support in the XY axis direction and the Z axis direction. The lifting frame is not shaken, the collision noise between the lifting frame and the fixing frame is prevented, and there is an effect that can be reliably prevented damage to the peripheral parts.

In addition, according to the lifting light tower of the present invention, even if the wire is broken in the lifting frame is raised to the light position, the lifting frame is constrained by the Z-axis restraining means, thereby preventing the lifting of the lifting frame and lights, and thus the lifting frame Damage to the lights and lighting, as well as the effect of being able to reliably prevent human life and property damage on the ground.

Hereinafter, the lifting type illumination tower according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

1 is a front view showing a state in which the lifting frame of the lifting type light tower according to the present invention, Figure 2 is a front view showing a state in which the lifting frame of the lifting type light tower according to the present invention is lowered, Figure 3 is Figure 4 is an exploded perspective view of the Z-axis restraining means of the present invention, Figure 5a to 5c is a view showing the operating state of the Z-axis restraining means of the present invention.

Elevated lighting tower according to the present invention is installed vertically with a predetermined height (10), the fixing frame 20 is installed on the upper end of the support 10, and is installed to be elevated along the support (10) Lifting frame 30 to which the lamp 40 is mounted, lifting driving means for lifting and lowering the lifting frame 30, and an XY axis for restraining the lifting frame 30 with respect to the fixing frame 20 in the XY axis direction. And a Z-axis restraining means for restraining the lifting frame 30 in the Z-axis direction with respect to the fixing frame 20.

The prop 10 is made of an empty steel pipe and is vertically erected to support the fixing frame 20 and the lifting frame 30.

The support 10 is formed on the bottom of the support plate 12 to support the lower portion of the fixing frame 20 to form a ground plate 11 to be fixed vertically on the bottom for a separate light tower support to stand vertically, ).

It is preferable to have a work hole 13 which is opened near the bottom of the support 10 to cover the cover 13a.

The fixing frame 20 has a pair of roller support plates 21 fixed to face each other on the support plate 12 on the upper end of the support 10 and a pair of roller support plates 21 at left and right sides. It is configured to include a wire guide roller 22 is rotatably installed.

In the fixing frame 20, the protective cover 23 is fixedly installed on the upper portion of the roller support plate 21, so that the components assembled in the fixing frame 20 are protected from rain or snow.

In the figure, reference numeral 24 is a collapsed needle for protecting the lifted light tower from lightning.

The lifting frame 30 is composed of a square frame 31 having a hollow space in the center of the form steel.

The lamp 40 is fixed to the square frame 31 of the lifting frame 30 by a lamp bracket 41.

The elevating driving means is a winding machine 50 installed in the lower portion of the inner space of the support 10, the traction line 51 wound on the winder 50 and the traction line 51 is connected to the wire guide It is configured to include a pair of wires 52 wound around the roller 22 by 180 degrees and the ends thereof are fixed to the square frame 31 of the lifting frame 30.

The pair of wires 52 are respectively installed in a state in which they are wound around two wire guide rollers 22.

As shown in FIG. 4, the wires 52 are connected to the traction line 51 by a binding hole 53 having a lower end thereof bound to one.

In order to prevent the wire 52 from flowing arbitrarily in the state in which the lifting frame 30 is raised to the illumination position, a wire fixing chain 54 is connected to the binding port 53, and an inner circumferential surface of the support 10 is provided. To fix the wire 52 by inserting the wire fixing pin 55 into the wire fixing chain 54 and the fixing pin hole 55a by fixing and fixing the wire fixing piece 55 with the fixing pin hole 55a formed therein. It is composed.

The lamp 40 and the winder 50 are configured to blink or operate by operating the remote control switch 57.

The XY axial restraining means is formed on both side ends of the pair of roller support plates 21 by partition plates 61 which close the both side ends of the roller support plate 21 of the fixing frame 20. ), And a constraining protrusion 62 fixed to the square frame 31 of the lifting frame 30 at a position that can be fitted into the constraining groove part 60.

The constraining groove 60 is formed in a state where the upper and lower portions and both side end sides are opened, and the constraining protrusion 62 is in close contact with the roller support plate 21 and the partition plate 61 constituting the constraining groove 60. It is formed into a form that can be.

The XY axis direction restraining means is the same as in the Republic of Korea Patent No. 492176 by the present inventors described above, specific illustration and description will be omitted.

1, 2 and 5, the Z-axis restraining means is fixed to the lifting frame 30, the restraining piece 70 having a restraining hole 71, and the fixing frame 20 And a linear actuator 72 fixed and controlled by the remote control switch 57, and a restraining rod 73 fitted and disengaged from the restraint hole 71 by moving forward and backward by the linear actuator 72. It is configured by.

The linear actuator 72 may be a solenoid that moves forward when the power is applied and retracts by the action of a built-in spring when the power is cut off, but in order to minimize power consumption and maintain the Z-axis restraint even during a power failure. When the power is cut off, it is preferable to use the solenoid that moves forward by the action of the built-in spring and retracts when the power is applied.

That is, when the lifting frame 30 rises to the illumination position, the remote control switch 57 is turned off to move forward by the action of the spring in which the linear actuator 72 is built, and the restraint bar 73 moves forward and restrains. The linear actuator 72 is turned on when the remote control switch 57 is turned on before the winding machine 50 is operated to fit the ball 71 and lower the lifting frame 30 in the illumination position to the working position. The power is applied to the forward operation so that the restraint rod (73) is retracted to be separated from the restraint hole (71).

In addition, the fixing frame 20 is fixed to the guide piece 74, the guide hole 75 for guiding the restraining bar 73 is installed.

The guide piece 74 is for protecting the linear actuator 72 by minimizing the transfer of the restraining force acting between the restraining rod 73 and the restraining piece 70 to the linear actuator 72.

Hereinafter, the operation of the lift-type lighting tower according to the present invention.

1 shows a state in which the lifting frame 30 is raised and the lamp 40 mounted thereto is raised to a normal lighting position.

In this state, the lifting frame 30 is constrained in the XY axis direction and the Z axis direction by the XY axis direction restraining means and the Z axis direction restraining means, as shown in FIG. Even if the Z-axis external force is applied, the lifting frame 30 and the lamp 40 mounted thereto do not flow and are maintained at the illumination position.

That is, the restraining protrusion 62 installed in the lifting frame 30 is inserted into the restraining groove 60 installed in the fixing frame 20 to be restrained in the XY axis direction, and restraining the restraining piece 70 provided in the lifting frame 30. The restraint rod 73 provided in the fixing frame 20 is fitted to the ball 71 and is restrained in the Z-axis direction.

If it is necessary to replace or repair the lighting lamp 40, etc. in the state of FIG. 1, open the cover 13a and operate the remote control switch 57 to apply power to the linear actuator 72 as shown in FIG. 5B. As described above, the linear actuator 72 is retracted so that the restraining rod 73 is retracted and released from the restraining hole 71 to release the Z-axis restraint of the lifting frame 30 with respect to the fixing frame 20. .

In this state, by operating the remote control switch 57 to move the winder 50 in the winding direction to release the tow line 51 wound on the winder 50, the tow line 51 through the binding port 53 The wire 52 connected to it is loosened, and the lifting frame 30 and the lamp 40 to which the end of the wire 52 is fixed are lowered by their own weight as shown in FIGS. 2 and 5C.

At this time, in order to prevent power consumption, the restraining rod 73 may be advanced by cutting off the power of the linear actuator 72 by the remote control switch 57.

When the lifting frame 30 is lowered to the working position, the operation of the winder 50 is stopped, and the work such as cleaning or replacing the lamp 40 is performed.

When the operation of cleaning or replacing the lamp 40 is completed, the remote control switch 57 is operated to operate the winding machine 50 in the unwinding direction so that the tow line 51 is wound around the winding machine 50.

At this time, when the power supply of the linear actuator 72 is cut off while the lifting frame 30 is lowered to the working position, the linear actuator 72 is operated by operating the remote control switch 57 before the winding machine 50 is operated. It is operated in the retraction direction so that the restraint rods 73 remain in the retracted state.

When the tow line 51 is wound around the winder 50, the wire 52 connected to the bottom thereof through the binding port 53 to the tow line 51 is pulled downward, and the lifting frame having the wire 52 fixed thereto. 30 is raised to the illumination position.

When the lifting frame 30 rises to the illumination position, the wire fixing chain 54 connected to the binding port 53 through the work hole 13 of FIGS. 1 and 5a is fixed to the inner circumferential surface of the support 10. By fixing the fixing pins 56 to the fixing piece 55, the wires 52 do not flow freely in the vertical direction.

In addition, when the platform 30 rises to the illumination position, the restraining protrusion 62 constituting the XY axis direction restraining means is naturally inserted into the restraint groove 60 to form the restraint in the XY axis direction.

On the other hand, when the lifting platform 30 rises to the illumination position, when the power supply of the linear actuator 72 constituting the Z-axis restraint means is shut off by the remote control switch 57, the linear actuator 72 is operated by the built-in spring. In the forward operation, the restraint bar 73 is advanced to be fitted into the restraint hole 71 of the restraining piece 70 to restrain the lifting table 30 in the Z-axis direction.

As such, in the state where the lifting frame 30 is raised to the illumination position, the lifting frame 30 is constrained in the XY axis direction and the Z axis direction by the XY axis direction constraining means and the Z axis direction constraining means, thereby being constrained in the XY axis direction and being XY. Even when the external force acts not only in the axial direction but also in the Z-axis direction, the lifting frame 30 is not shaken, thereby preventing collision noise between the lifting frame 30 and the fixing frame 20 and preventing damage to peripheral parts. .

In particular, the lifting frame is constrained by the Z-axis restraining means in the state where the lifting frame is raised to the lighting position, so that the lifting frame and the lighting can be reliably prevented even if the wire is broken. Of course, it is possible to reliably prevent human life and property damage on the ground.

1 is a front view showing a state in which the lifting frame of the lifting light tower according to the present invention is raised,

2 is a front view showing a state in which the lifting frame of the lifting light tower according to the present invention is lowered,

3 is a partial longitudinal cross-sectional view showing a wire, a traction line and a winding machine of the present invention,

4 is an exploded perspective view of the Z-axis restraining means of the present invention;

5a to 5c is a view showing an operating state of the Z-axis restraining means of the present invention.

** Description of symbols for the main parts of the drawing **

10: prop 20: fixing frame

30: lifting frame 40: lighting

50: winder 52: wire

60: restraint groove 62: restraint protrusion

70: restraint 71: restraint ball

72: linear actuator 73: restraining rod

Claims (3)

A support 10 which is erected vertically with a predetermined height, a fixing frame 20 installed at an upper end of the support 10, and a lift which is installed to be lifted along the support 10 and mounted with a lamp 40 mounted thereon. Frame 30, lifting drive means for lifting and lowering the lifting frame 30, XY axis direction restraining means for restraining the lifting frame 30 in the XY axis direction with respect to the fixed frame 20, and the lifting frame Z-axis restraining means for restraining the 30 in the Z-axis direction with respect to the fixing frame 20, and a remote control switch 57 for remotely controlling the light and the lifting drive means and Z-axis restraining means. Expression light tower. According to claim 1, wherein the Z-axis direction restraining means is fixed to the lifting frame 30, the restraining piece 70 having a restraining hole 71 and the fixing frame 20 is fixed to the remote control switch 57 Lifting type, characterized in that it comprises a linear actuator (72) adjusted by the) and the restraining rod (73) which is fitted or detached with respect to the restraint hole 71 by moving forward and backward by the linear actuator (72) Lighting tower. According to claim 2, wherein the linear actuator 72 is forward-actuated when the power is applied so that the restraint bar 73 is fitted into the restraint hole 71, and when the power is cut off by retracting the restraint bar is restrained hole Lifting light tower, characterized in that consisting of a solenoid to be separated from.

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