KR101658334B1

KR101658334B1 - Up and down device for illumination apparatus

Info

Publication number: KR101658334B1
Application number: KR1020160045411A
Authority: KR
Inventors: 김위철
Original assignee: (주)성진하이텍
Priority date: 2016-04-14
Filing date: 2016-04-14
Publication date: 2016-09-21

Abstract

The present invention relates to a lifting device for a luminaire, and more particularly, to a lifting device for a luminaire, more particularly, to a luminaire which stably supports a luminaire from a ceiling, The present invention relates to a lifting and lowering apparatus for a luminaire for supporting a luminaire which is connected to a connecting portion thereof in a stable manner on both sides while a single wire supports the connecting portions in parallel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lifting apparatus for a luminaire,

Generally, a high-lighting fixture is installed in a workplace such as a factory, a hotel lobby, a gymnasium, a factory, a church, a performance hall, a wedding hall, a ballroom,

Such a luminaire is not required to be used for the first time, but it needs to be periodically replaced by a limited lifetime of the luminaire for a long period of use, and periodic cleaning is necessary along with checking for maintenance and repair of the luminaire.

For this purpose, in order to inspect the luminaire used in the high ceiling, or to perform the cleaning work, the elevated work equipment, such as the elevating workbench, the elevating crane or the ladder car, is used for the elevating work.

The above-mentioned complaint work requires more attention and skill than the ground work, and is always exposed to the risk of safety accidents such as electric shock and fall of the worker during the work of the elevator, and the expense of using the elevator work equipment is increased .

In Korean Utility Model Registration No. 20-0326792, a lighting fixture is disclosed.

However, since the conventional lighting fixture is connected to the center of the luminaire by a single lifting cable, there is a problem that a safety accident such as twisting of the lifting cable may occur due to rotation of the luminaire upon driving.

Korean Utility Model Registration No. 20-0326792 (2003.09.17.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a lighting fixture which can stably support a luminaire from a ceiling, And the lifting device for the luminaire is provided so that the lifting and lowering of the luminaire can be performed smoothly.

It is another object of the present invention to provide a lift device for a luminaire, in which a single wire supports a connection part in parallel and stably supports a luminaire connected to the connection part on both sides.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the present invention provides an elevating device for a luminaire, which is installed in a structure to support a luminaire and to raise and lower the luminaire, comprising: a connection part to which the luminaire is connected; A main body part positioned above the connection part and including a driving motor and a pulley connected to the driving motor; A supporting part installed in the structure and having a space formed therein to receive the body part; A wire connecting the connection portion and the main body portion, the wire being wound or unwound by the pulley in accordance with driving of the driving motor, thereby lifting and lowering the lighting device together with the connection portion; And a plurality of guide rollers provided at the connection portion and connected to the wire while being supported by the wire and guiding the unwinding or winding of the wire, wherein the wire is wound around the pulley And the other end portion is connected to the main body portion and the both end portions thereof are connected to the connecting portion by the plurality of guide rollers while supporting the connecting portion in parallel. do.

The connecting part according to the present invention comprises: a plate; A connecting plate protruding upward from the plate and the plurality of guide rollers being rotatably fixed; And a pair of outflow openings through which the wire passes are formed at an upper portion of the plate so as to prevent the detachment of the connection portion due to the detachment of the wire from the guide roller. And a chamber to which the gas is supplied.

A control unit for controlling the driving motor; And a length sensing part provided on the inside of the support part and sensing a winding or unwinding length of the wire in accordance with the rotation of the pulley, wherein the length sensing part is formed to extend outward from one of both surfaces of the pulley A sensing plate having a plurality of through holes radially formed therein; An optical sensor for allowing light to pass through the through hole; And a sensor for sensing the recovery of light from the photosensor passing through the through hole, wherein the controller controls driving of the driving motor to a sensing signal of the sensing sensor.

The apparatus may further include a down stop part for stopping the driving of the driving motor when the lamp is seated on the floor according to the driving of the driving motor.

The main body according to the present invention further includes an auxiliary pulley which is disposed at one side of the pulley and guides and guides the wire wound or unwound by the pulley, Wherein the auxiliary pulley is lowered by the pressing of the wire while the tension is applied by the wire as the luminaire is connected to the connection portion, and the lower stopper portion is connected to the support plate or the support portion An elastic member contracted by the lowering of the auxiliary pulley while being relaxed as the tension of the wire is released and pressing the auxiliary pulley so as to ascend and descend; And a limit switch for allowing the drive motor to be driven while being pressed by the pressure of the auxiliary pulley to be lowered and for stopping the drive of the drive motor while being released from operation in accordance with the ascending and descending of the auxiliary pulley .

The main body according to the present invention may further include a rotation connection means for pivotally connecting the other end of the wire to the inside of the support portion in the left and right direction, A rotary plate to which the other end of the wire is connected; And a bearing connected to the rotating plate so that the other end of the wire passes through the inner side and the rotating plate is rotated in the left and right direction about the other end of the wire. do.

The main body unit according to the present invention further includes a permissible weight detecting unit for preventing the driving motor from being driven when a luminaire having an allowable weight or more is connected to the connection unit.

The allowable weight detecting portion according to the present invention includes: a plate spring having both ends and supporting the bearing; A support frame supporting one end of the leaf spring and spaced apart from the other end of the leaf spring; And a limit switch located at a lower portion of the leaf spring, wherein the leaf spring contacts the limit switch while the other end is bent downward as the weight of the lumen exceeds an allowable weight, And the driving of the driving motor is stopped while being pressed by the pressing of the leaf spring.

According to the present invention, it is possible to stably support the luminaire from the ceiling, and to smoothly raise and lower the luminaire due to the replacement of the bulb due to the end of the lamp life of the luminaire, can do.

In addition, since the wires support the connecting portions in parallel, the lamps connected to the connecting portions can be stably supported on both sides, and the thickness of the wires can be reduced as compared with the case where only the center portion is supported, Can be prevented.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a perspective view showing a landing gear for a luminaire according to the present invention.
Fig. 2 is a perspective view showing a state in which the lid is opened in Fig. 1. Fig.
Fig. 3 is a state diagram showing a lifting device for a luminaire according to the present invention.
4 is a conceptual diagram schematically showing an operation state of a landing gear for a lighting device according to the present invention.
5 is a perspective view showing a connection state between a wire and a plurality of guide rollers in a lifting apparatus for a luminaire according to the present invention.
6 and 7 are a perspective view and a front view showing a descent stop portion in the lifting apparatus for a luminaire according to the present invention.
8 and 9 are a perspective view and a side view showing the turning means and the allowable weight detecting section in the lifting apparatus for a luminaire according to the present invention.
9 is a side view showing the turning means and the allowable weight detecting portion in Fig.
10 is a perspective view of a length detecting unit in a lifting apparatus for a luminaire according to the present invention.
11 is a side view showing a state in which safety means and a power connection portion are provided in a lifting apparatus for a luminaire according to the present invention.
12 is an exploded perspective view showing a power connection part in a lifting device for a luminaire according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 1 to 12, the present invention provides a lifting device 1 for a luminaire, which is mounted on a structure to support a luminaire 200 and to raise and lower the luminaire 200, A main body 20 including a connecting portion 10 to which the driving motor 200 is connected, a driving motor 21 positioned above the connecting portion 10 and a pulley 22 connected to the driving motor 21, A supporting portion 30 provided in the structure and having a space 30a formed therein to receive the main body portion 20 and a connecting portion 30 connecting the connecting portion 10 and the main body portion 20, And a wire 40 for lifting or lowering the luminaire 200 together with the connecting portion 10 while being wound or unwound by the pulley 22 according to the driving of the luminaire.

The structure may be understood to refer to a ceiling of a building such as a factory, a hotel lobby, a gym, a factory, a church, a performance hall, a wedding hall, a ballroom, a gas station,

As shown in FIG. 3, the lamp 200 is a high-power lamp, and various known lamps may be used, so a detailed description thereof will be omitted.

The lifting and lowering device 1 for a luminaire can smoothly raise and lower the lamp due to replacement of a bulb, breakdown, maintenance, and the like due to the end of lamp life of the lamp 200 installed in a high ceiling.

The lifting apparatus 1 for a luminaire further includes a control unit 50 for controlling the driving motor 21 as shown in FIG.

The control unit 50 may be an electric or wireless device and may be powered or externally supplied with power from the driving motor 21 to block the lighting of the lamp 200 due to the driving of the driving motor 21. [ , And down.

In this case, the controller 50 may control the lamp 200 such as supplying, blocking, turning on and off the power supplied from the outside to the lamp 200.

1 and 2, the support portion 30 includes a casing 31 having an upper portion opened and forming the space portion 30a inwardly, and a cover (not shown) for blocking the upper portion of the opened casing 31 32).

The support portion 30 may further include a support member 33 provided on the lid 32 and including a ring 33a so as to be suspended from the structure.

As shown in FIG. 5, the lifting apparatus 1 for a luminaire is provided in the connection part 10 and is connected to the wire 40 while being supported by the wire 40, while the connection part 10 is connected to the wire 40, And a plurality of guide rollers (60) for guiding the unwinding or winding of the wire (40).

Accordingly, the wire 40 is connected to the pulley 22 so that one end of the wire 40 can be wound or unwound, and the other end is connected to the main body 20, so that the two ends of the wire 40 are guided by the plurality of guide rollers 60 And is connected to the connection unit 10, and supports the connection unit 10 in parallel as shown in FIGS.

5, the wire 40 has a first wire 41 having upper and lower ends and an upper end connected to the pulley 22, upper and lower ends thereof, A second wire 42 connected to the second wire 20 and arranged in parallel with the first wire 41 and a lower end of the first wire 41 and the second wire 42, And a third wire (43) connected to the second wire (60).

The guide rollers 60 are paired and rotatably connected to both sides of the upper portion of the connection portion 10 so that the connection portion 10 is stably connected to the wire 40, Ensure smooth winding or unwinding.

3, the lifting apparatus 1 for a luminaire is connected to the connection unit 10 while supporting the connection unit 10 in parallel by the first and second wires 41 and 42 The lamp 200 can be stably supported on both sides.

In addition, since the lamp lifting device 1 can support the lamp 200 from both sides of the first and second wires 41 and 42, the thickness of the wire can be reduced Of course, it is possible to prevent the lamp 200 from being rotated in the left and right direction.

The connecting portion 10 includes a safety chamber 12 in which the plate 11 and the plurality of guide rollers 60 are accommodated, as shown in FIGS.

The plate 11 may be formed in a polygonal shape including a circle, a square, and the like.

The connection unit 10 may further include a connection member 13 provided at a lower portion of the plate 11 and having a connection ring 13a so that the lighting unit 200 can be suspended.

As shown in FIG. 5, the connection portion 10 is upwardly protruded from the plate 11 so as to be received in the safety chamber 12, and is connected to the guide roller 60, And may further include a plate 14.

The safety chamber 12 prevents the connection portion 10 and the lamp unit 200 from dropping and dropping due to the detachment of the wire 40 from the plurality of guide rollers 60.

5, both ends of the safety chamber 12 extend in the longitudinal direction of the third wire 43, and the lower portion of the safety chamber 12 is opened to form an empty space inward, and the connection plate 14 And the plurality of guide rollers 60 are received in the plate 11 by welding or the like.

The safety chamber 12 may include a pair of outflow openings 12a into which the lower ends of the first and second wires 41 and 42 are inserted.

1 and 2, the upper surface of the plate 11 is recessed downward to form a recessed space 11a. The safety chamber 12 is received in the recessed space 11a, Is preferably in contact with the side wall forming the depression space 11a.

At this time, it can be understood that the pair of outflow inlets 12a are formed on the upper part of the safety chamber 12.

Therefore, even when the wire 40 is detached from the plurality of guide rollers 60, the connection portion 10 can be maintained in a connected state without falling down.

The drive motor 21 has a general shape and is most preferably formed of a worm gear motor.

The pulley 22 has both sides and is connected to the driving motor 21 so that both sides thereof face the front and rear direction and the wire 40 is wound around the driving motor 21, So that the wire 40 wound around it can be unwound.

As shown in FIG. 5, the pulley 22 preferably has a V-shape in which the outer circumferential surface of the pulley 22 is recessed inward, so that the wire 40 is uniformly wound around the central portion.

5, the main body portion 20 is disposed at one side of the pulley 22 and supports between the both ends of the first wire 41, while the wire 40 is connected to the pulley 22, And an auxiliary pulley 23 for guiding winding or unwinding of the belt.

The support portion 30 may include a support plate 34 fixed to an inner bottom surface of the casing 31 and the auxiliary pulley 23 is vertically movable and rotatably connected.

The lifting device 1 may further include a lowering control part 70 for stopping the driving of the driving motor 21 when the lamp 200 is mounted on the inner bottom surface of the building.

This is because when the lamp 200 is mounted on the floor according to the downward driving of the driving motor 21, the falling of the lamp is automatically stopped to break the lamp 200 and twist the wire 40 .

As the lamp unit 200 is connected to the connection unit 10, the auxiliary pulley 23 is lowered due to the tension applied thereto by the wire 40.

6 to 7, the downwardly-collapsible portion 70 is connected to the support plate 34 or the support portion 30 and is contracted by the pressure of the lowering of the auxiliary pulley 23, That is, pressed by the elastic member 71 and the lowering auxiliary pulley 23, which is operated to press the auxiliary pulley 23 while being relaxed as the tension on the wire 40 is released, And a limit switch 72 for stopping the driving of the driving motor 21 while the auxiliary pulley 23 is lifted and lowered.

A guide hole 34a may be formed in the support plate 34 to allow the auxiliary pulley 23 to move up and down. Here, it should be understood that the shaft of the auxiliary pulley 23 is rotatably connected to the guide hole 34a and is moved up and down along the guide hole 34a.

The elastic member 71 is formed of a coil spring of a general shape and is positioned at a lower portion of the auxiliary pulley 23 and contracts as the auxiliary pulley 23 descends, So that the auxiliary pulley 23 returns to its original position while being relaxed.

The limit switch 72 is electrically connected to and disconnected from the control unit 50 and the drive motor 21 so that the drive motor 21 can be driven or stopped to be stopped. And therefore, a detailed description thereof will be omitted.

That is, the auxiliary pulley 23 is coupled to the support plate 34 so as to be movable upward and downward, and is lowered by the tension corresponding to the load of the lamp 200 acting as the wire 40, Touch. At this time, the drive motor 21 is maintained in a state in which it can be driven or driven, and the elastic member 71 is contracted.

In contrast, when the luminaire 200 is seated on the floor, the driving motor 21 is driven by the auxiliary pulley 23 so that the load 40 of the luminaire 200 does not act on the wire 40, As the elastic member (71) is relaxed, it is raised and lowered to its original position, and at the same time, the driving is stopped while being separated from the limit switch (72).

Therefore, when the lamp 200 is placed on the floor according to the downward driving of the driving motor 21, the lifting device 1 of the lamp is automatically stopped to break the lamp 200 The wire 40 can be prevented from being twisted.

8 to 9, the main body portion 20 includes an upper portion of the second wire 42 rotatably connected to the inside of the support portion 30 so as to be rotatable in the left- Means (24).

The rotating connection means 24 includes a rotary plate 24a located at the other side of the pulley 22 and connected to the other end of the wire 40, that is, the upper end of the second wire 42, And a bearing 24b for rotating the rotary plate 24a in the left-right direction about the second wire 42. [

The bearing 24b may be a plate bearing having upper and lower openings and may be supported by the support 30 so as to be positioned on the other side of the pulley 22.

The upper end of the second wire 42 passes through the bearing 24b and is connected to the rotary plate 24b, and is rotated at an original position.

Accordingly, the upper end of the second wire 42 can be prevented from being twisted while being rotatably connected to the wire 40 by the plate bearing 24b at the original position.

8 to 9, the main body part 20 senses the weight of the lifting device 200 that is supported by the lifting device 1 and can detect the weight of the driving motor 21, (25) for stopping the operation of the control unit.

The permissible weight detection unit 25 senses the lighting unit connected to the connection unit 10 at a permissible weight or more of the luminaire supported by the lifting apparatus 1 for the luminaire so that the driving motor 21 is not driven .

The allowable weight detecting section 25 has a plate spring 26 having both ends and supporting the bearing 24b and a plate spring 26 which supports one end of the plate spring 26 and is spaced apart from the other end of the plate spring 26 And a limit switch 28 positioned under the support frame 27 and the leaf spring 26.

The limit spring 28 is in contact with the limit switch 28 while the other end of the plate spring 26 is bent downward as the weight of the lamp 200 exceeds the allowable weight. The driving of the drive motor 21 is stopped while the leaf spring 26 is pressed or pressed by the pressure.

The limit switch 28 is electrically connected to and disconnected from the control unit 50 and the drive motor 21 so that the drive motor 21 can be driven or stopped, And therefore, a detailed description thereof will be omitted.

Therefore, it should be understood that the leaf spring 26 does not cause warping when the luminaire 200 has an allowable weight.

The support frame 27 includes a first support plate 27a to which one end of the leaf spring 26 is connected and a second support plate 27b to be spaced apart from the leaf spring 26 below the other end of the leaf spring 26. [ And a base plate 27c connecting the first and second support plates 27a and 27b and connected to the inner bottom surface of the support unit 30. [

The upper end of the second wire 42 is sequentially connected to the rotating plate 24a through the bottom surface of the supporting portion 30, the base plate 27c and the leaf spring 26 in sequence.

One end of the leaf spring 26 is connected to the first support plate 27a of the support frame 27 while the second support plate 27b is separated from the other end of the leaf spring 26 So that the lower end of the plate spring 26 abuts against the allowable weight of the lamp 200 to be stopped.

The support frame 27 stably supports the leaf spring 26 and when the lighting fixture 200 is connected to the connection unit 10 with an allowable weight or more, So that the limit switch 28 can be protected together with the leaf spring 26.

The permissible weight detecting unit 25 may be configured such that the driving motor 21 is not driven when a luminaire having an allowable weight or more is connected to the connection unit 10 so that the weight of the luminaire It is possible to prevent a falling accident or the like.

8, the lifting apparatus 1 for a luminaire may further include a length sensing unit 80 for sensing the length of the wire 40 wound or unwound according to the rotation of the pulley 22 have.

As shown in FIG. 10, the length sensing unit 80 includes a sensing plate 81 extending outwardly from one side of the pulley 22 and having a plurality of through holes 81a radially formed therein, A light sensor 82 for allowing light to pass through the through hole 81a and a light sensor 82 for detecting light passing through the through hole 81a, And a detection sensor 83 for controlling the driving of the driving motor 21. [

The sensing plate 81 rotates together with the pulley 22 as the driving motor 21 is driven and the optical sensor 82 and the sensing sensor 83 are rotated together with the pulley 22 (30). &Lt; / RTI >

The light sensor 82 and the detection sensor 83 are opposed to each other in the longitudinal direction around the detection plate 81. Light is transmitted through the light sensor 82 as the through hole 81a is positioned therebetween, And the appropriate height of the lamp 200 can be adjusted through the control unit 50 by detecting the light.

The lifting device 1 for the luminaire is provided with safety means 90 for stopping the driving of the driving motor 21 when the connecting portion 10 is adjacent to or in contact with the supporting portion 30 in accordance with the lifting and lowering of the lamp 200 ). &Lt; / RTI >

The safety means 90 includes a limit switch 91 provided on the support portion 30 as shown in FIG.

The limit switch 91 protrudes downward from the inner bottom surface of the support portion 30 and is pressed or operated by the pressure of the connecting portion 10 raised and lowered by the driving of the driving motor 21, The driving of the driving motor 21 is stopped.

The limit switch 91 is electrically connected to and disconnected from the control unit 50 and the drive motor 21 to enable the drive motor 21 to be driven or to stop the drive, So that a more detailed description thereof will be omitted.

11, the safety means 90 includes a pair of locking hooks 92 provided on both sides of the upper side of the plate 11 and a pair of locking hooks 92 (Not shown).

The lock ring 92 has a "C" shape in which both ends of the lock ring 92 are connected to the plate 11 and the lower portion thereof is opened.

The pair of locking means 93 is provided on the inner side of the supporting portion 30 and the supporting portion 30 is provided with the pair of locking rings 92 on both sides of the lower side as shown in Figure 3 A pair of inlet holes 31a can be formed.

The locking means 93 includes a body 94 having a lower portion thereof opened to form a locking hole 94a into which the locking ring 92 is inserted, a locking hole 94a rotatably connected to the body 94, And a solenoid valve 96 driven by the control of the controller 50 to open or close the locking hole 94a by rotating the opening and closing bar 95. [

The open / close bars 95 are paired and can be pivotally connected to both sides of the body 94 with the lock hole 94a as a center, and the lower portion of the opened lock hole 94a is opened / So that the ring 92 is unbonded or unbonded.

The pair of open / close bars 95 may be rotated together with the operation of the solenoid valve 96 while the solenoid valve 96 is connected.

Alternatively, the solenoid valve 96 may be connected to one of the open / close bars 95 of the pair of open / close bars 95, and the solenoid valve 96 may be rotated together with the operation of the open / close bar 95.

The opening and closing bar 95 is rotated inward in accordance with the pressing of the lock ring 92 to be lifted and lowered so that the lock ring 92 is retracted into the lock hole 94a, So that the locking ring 92 is supported.

The open / close bar 95 is rotated in the outward direction according to the operation of the solenoid valve 96, so that the binding of the lock ring 92 to the lock ring 92 is released.

That is, when the connection unit 10, which is lifted or lowered according to the driving of the driving motor 21, is adjacent to the support unit 30, the safety switch 90 is operated by the limit switch 91, The driving motor 21 is stopped and the elevation stops.

In addition, the lock ring 92 is coupled to the lock hole 94a to be coupled to the support portion 30 so that the connection portion 10 is retained.

Accordingly, the safety means 90 can prevent damage or fall of the support portion 30 due to collision between the support portion 30 and the connection portion 10, and can maintain a stable connection state.

As shown in FIG. 11, the lifting apparatus 1 for a luminaire is configured such that the connecting portion 10 raised or lowered by driving the driving motor 21 is adjacent to or contacts with the supporting portion 30, The power supply unit 100 may further include a power supply unit 100 for automatically supplying power to the power supply unit 100.

This is for the purpose of automatically supplying power to the lamp 200 at a state where the connection portion 10 is adjacent to or in contact with the support portion 30, that is, at a height at which the connection portion 10 is not elevated any more .

It is to be understood that the luminaire 200 at this time is installed at the most appropriate height.

11 to 12, the power connection unit 100 includes a socket 101 that is provided in the support unit 30 and receives power from the outside, and a power supply unit 100, which is provided in the connection unit 10, And a connecting means (102) electrically connected and coupled to the socket (101).

It can be understood that the socket 101 receives power from the controller 50 or another external power supply.

The socket 10 is formed as a pair and is disposed on both sides of the inside of the support portion 30, and the lower portion thereof is opened so that the connection means 102 is inserted and coupled to the inside.

The supporting portion 30 is connected to the socket 101 on the lower surface thereof and a fastening hole 31b through which the connecting means 102 is inserted is formed.

The connection means 102 includes a connection pin 103 having a pair of upper and lower portions such as the socket 101 and a lower portion connected to the plate 11, A guide plate 104 protruding outwardly from a lower portion of the guide cap 104 and connected to the socket 101 and a connection plate 105 connected to the socket 101, And a spring (106) coupled to the outside of the connection pin (103) so as to be positioned between the connection plate (11) and the connection plate (105).

The surface of the guide cap 104 may be made of an insulating material and is guided into the socket 101 to induce connection between the connection plate 105 and the socket 101.

The spring 106 is formed of a coil spring of a general shape and presses the connection plate 105 to smoothly connect the guide cap 104 as the guide cap 104 is pulled into the socket 101.

Therefore, when the lamp 200 reaches an appropriate height, the lifting device 1 for the lamp can automatically supply power to the lamp 200, It is possible to prevent the power supply from being automatically supplied.

The present invention is not limited to the above-described embodiment, and the present invention is not limited to the above-described embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

1: lifting device for a luminaire 10:
11: plate 11a: depression space
12: Safety chamber 12a: Outlet entrance
13: connecting member 13a: connecting ring
14: connecting plate 14a: connecting ring
20: main body 21: drive motor
22: Pulley 23: Auxiliary pulley
24: rotation connecting means 24a:
24b: bearing 25: allowable weight detection section
26: Plate spring 27: Support frame
27a: first support plate 27b: second support plate
27c: base plate 28: limit switch
30: support part 31: casing
31a: inlet hole 31b: fastener hole
32: lid 33: support member
33a: collar 34: backing plate
34a: Guide ball 40: Wire
41: first wire 42: second wire
43: third wire 50:
60: guide roller 70:
71: elastic member 72: limit switch
80: length detecting portion 81a: through hole
82: light sensor 83: detection sensor
90: Safety means 91: Limit switch
92: coupling ring 93: locking means
94: body 94a: lock ball
95: opening / closing bar 96: solenoid valve
100: Power connection 101: Socket
102: connecting means 103: connecting pin
104: guide cap 105: connection plate
106: spring 200: luminaire

Claims

A lifting device for a luminaire which is mounted on a structure to support a luminaire and to raise and lower the luminaire,
A connecting portion to which the lamp is connected;
A main body portion located above the connection portion and including a driving motor, a pulley connected to the driving motor, and a permissible weight sensing portion for preventing the driving motor from being driven when a light weight equal to or greater than an allowable weight is connected to the connecting portion;
A supporting part installed in the structure and having a space formed therein to receive the body part;
A wire connecting the connection portion and the main body portion, the wire being wound or unwound by the pulley according to driving of the driving motor, thereby lifting and lowering the lighting device together with the connection portion; And
And a plurality of guide rollers provided on the connection portion and connected to the wire while being supported by the wire and guiding the winding or winding of the wire,
The wire
Wherein the one end portion is connected to the connection portion by the plurality of guide rollers while the other end portion is connected to the main body portion while the other end portion is connected to the connection portion,
Wherein,
And rotation connecting means for connecting the other end of the wire to the inside of the supporting portion so as to be rotatable in the left and right direction,
The pivoting connection means includes:
A rotary plate disposed on the other side of the pulley and connected to the other end of the wire; And
And a plate bearing connected to the rotating plate so that the other end of the wire passes through the inside of the rotating plate, and the rotating plate is rotated in the left and right direction about the other end of the wire,
Wherein the allowable weight detecting section comprises:
A leaf spring having both ends and supporting the plate bearing;
A support frame supporting one end of the leaf spring and spaced apart from the other end of the leaf spring; And
And a limit switch located under the leaf spring,
The support frame includes:
A first support plate to which one end of the leaf spring is connected;
A second support plate disposed below the other end of the leaf spring so as to be spaced apart from the leaf spring; And
And a base plate connected to the first and second support plates and connected to an inner bottom surface of the support portion,
The leaf spring
And the other end portion is bent downward in contact with the limit switch as the weight of the luminaire exceeds the allowable weight from the state where the other end portion is separated from the second support plate,
The limit switch includes:
The driving of the driving motor is stopped while being pressed by the pressing of the leaf spring,
The support frame includes:
Wherein the first support plate is connected to the second support plate and the other end of the leaf spring is in contact with the first support plate from a state where one end of the leaf spring is connected to the first support plate to protect the limit switch together with the leaf spring. Lifting device.

The method according to claim 1,
The connecting portion
plate;
A connecting plate protruding upward from the plate and the plurality of guide rollers being rotatably fixed; And
And a pair of outflow openings through which the wire passes are formed on the upper portion of the plate so that the connection portion is prevented from being separated from the guide roller due to the detachment of the wire from the guide roller. And a chamber.

The method according to claim 1,
A control unit for controlling the driving motor; And
And a length sensing unit provided on the inner side of the support unit and sensing a winding or unwinding length of the wire according to the rotation of the pulley,
Wherein the length detector comprises:
A sensing plate extending outwardly from one of both surfaces of the pulley and having a plurality of through holes radially formed therein;
An optical sensor for allowing light to pass through the through hole; And
And a detection sensor for detecting the recovery of light of the optical sensor passing through the aperture,
Wherein,
And controls the driving of the driving motor to the detection signal of the detection sensor.

The method according to claim 1,
Further comprising a down stop part for stopping the driving of the driving motor when the lamp is seated on the floor according to driving of the driving motor.

5. The method of claim 4,
Wherein,
Further comprising an auxiliary pulley which is located at one side of the pulley and guides and guides the wire wound or unwound by the pulley,
The support portion
Wherein the auxiliary pulley is vertically movable and rotatably connected to the support pulley,
The auxiliary pulley,
As the luminaire is connected to the connection portion, tension is applied to the wire and the wire is lowered by the pressure,
Wherein the descending /
An elastic member connected to the support plate or the support portion and contracted by pressing down by the auxiliary pulley while pressing the auxiliary pulley while being relaxed as the tension of the wire is released; And
And a limit switch for allowing the drive motor to be driven while pressed by the lowered auxiliary pulley and stopping the driving of the drive motor while being released from the operation of the auxiliary pulley when the auxiliary pulley is lifted or lowered. Lifting device for a luminaire.

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