KR101243572B1

KR101243572B1 - Lifting apparatus having clamping unit using gravity and lifting system having thereof

Info

Publication number: KR101243572B1
Application number: KR1020100077007A
Authority: KR
Inventors: 이강; 박수열; 조준범; 함성일; 이태관
Original assignee: 연세대학교 산학협력단
Priority date: 2010-08-10
Filing date: 2010-08-10
Publication date: 2013-03-20
Also published as: WO2012020881A1; WO2012020881A8; KR20120014810A

Abstract

Disclosed are a multiple beam lifting device with a gravity clamping unit and a multiple beam lifting system. Multi-beam lifting device having a clamping unit using gravity of the present invention, a pair of base frames spaced apart from each other and connected to each other; A plurality of clamping units connected to both lower ends of the pair of base frames to support the lifting object to be lifted; And a plurality of clamping units disposed between the pair of base frames, the hinge rotating motions of which are connected to the pair of base frames so as to be connected to each other, and the plurality of clamping units facing each other in a state in which the hinge rotating motions face each other. It characterized in that it comprises at least two hinge rotation bar for adjusting the mutual spacing. According to the present invention, it is possible not only to lift the lifting object using gravity without using electricity, but also to lift the lifting object having various width sizes, and to lift the lifting object by pressing the lifting object with no force. It can prevent.

Description

Multi beam lifting device and multi beam lifting system with clamping unit using gravity {LIFTING APPARATUS HAVING CLAMPING UNIT USING GRAVITY AND LIFTING SYSTEM HAVING THEREOF}

The present invention relates to a multiple beam lifting device and a multiple beam lifting system having a clamping unit using gravity, and more specifically, to lift a lifting object using gravity without using external power such as electricity. In addition, a multi-beam lifting device and a multi-beam lifting system having a clamping unit using gravity that can lift a lifting object having various width sizes and can press the lifting object with no force to prevent the lifting object from sliding. It is about.

Conventional reinforcement device has been made to be able to detach the beam by using a wire directly tied or loosened by an operator, or by using a motor or an electromagnet driven by electricity.

When the electric lifting device using electricity among these conventional lifting devices is applied to a crane having a considerable height such as a tower crane, the distance between the crane and the lifting device is very long, and a method of supplying electricity to the lifting device has become a problem. .

The multi-bore weight lifting device and multi-bore weight lifting system having a clamping unit using gravity according to the present invention aims to solve the following problems.

First, gravity objects can be used to lift the lifting object without using additional power such as electricity.

Second, lifting objects with varying width sizes can be lifted.

Third, the lifting object may be prevented from sliding by pressing the lifting object with no power.

The solution to the problem of the present invention is 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.

The object is, according to the present invention, a pair of base frames spaced apart from each other and connected to each other; A plurality of clamping units connected to both lower ends of the pair of base frames to support the lifting object to be lifted; And a plurality of clamping units disposed between the pair of base frames, the hinge rotating motions of which are connected to the pair of base frames so as to be connected to each other, and the plurality of clamping units facing each other in a state in which the hinge rotating motions face each other. It is achieved by a multi-compensation lifting device having a clamping unit using gravity, characterized in that it comprises at least two hinge rotation bars for adjusting the mutual spacing.

Here, the pair of base frames includes a plurality of outer frames connected through the hinge rotation bar and the hinge axis, the clamping unit is disposed between the plurality of outer frames facing each other adjacent to each other, the plurality of outer frames and the plurality of links It may include a plurality of internal frames connected through.

A rope for lifting the lifting object is connected to one end of the hinge rotating bar, and when the lifting object is disposed between the plurality of clamping units and the rope is rotated by applying tension to the rope, the other end of the hinge rotating bar is the upper surface of the lifting object. The slide is moved along the upper surface of the object in the state in contact with, the other end of the hinge rotation bar by the tension of the rope may press the upper surface of the object.

The other end of the hinge rotation bar may be provided with a roller in sliding contact with the upper surface of the object of both.

The inner frame may be connected through the hinge shaft and the lifting wires so as to approach or be spaced apart from the outer frame in conjunction with the rotation of the hinge rotating bar.

The hinge shaft includes a hinge bracket interposed between the hinge rotating bar and the outer frame and rotates in conjunction with the hinge rotating bar when the hinge rotating bar is rotated. One end of the lifting wire may be connected to the hinge bracket and the other end may be connected to the inner frame.

The base frame may include a rotation limit bar that contacts the hinge rotation bar to limit the rotation of the hinge rotation bar when the hinge rotation bar rotates in one direction.

In the rotation of the hinge rotation bar in one direction, the inner frame connected to the lifting wire moves in conjunction with the rotation of the hinge rotation bar in a direction approaching the outer frame while being lifted by the link motion of the plurality of links. During rotation in the other direction, the inner frame connected to the lifting wire can move in conjunction with the rotation of the hinge rotation bar in a direction away from the outer frame while descending by the link motion of the plurality of links.

The plurality of clamping units may include a clamp module that contacts the lifting object and supports the lifting object when lifting the lifting object disposed between the plurality of clamping units.

The clamp module is provided in the lower region of the inner frame, and may include a rotary clamp freely connected to the inner frame and one or more support clamps installed below the rotary clamp.

The rotating clamp is connected to the inner frame and rotates in contact with the lifting object while the inner frame moves up and down with respect to the lifting object, and the support clamp is connected through the rotating clamp and the rotating linkage to rotate simultaneously with the rotation of the rotating clamp. The lifting object may be supported by contacting a flange of the lifting object.

The one or more support clamps are a pair of support clamps, the rotating clamp and the pair of support clamps being freely rotatable through the first, second and third rotating rods in the inner frame, respectively, and the first rotating rods connected to the rotating clamps. First and second rotary connecting plates are further provided at both ends of the second and third rotary rods respectively connected to the pair of support clamps, and third and fourth rotary connecting plates are further provided, respectively, and the rotary linkage unit includes: A first rotary linking unit connecting the rotary connecting plate and the third rotary connecting plate; And a second rotary linking unit connecting the second rotary connecting plate and the fourth rotary connecting plate.

The rotary linkage unit may be a chain or a wire.

First through holes are formed in the area of the inner frame corresponding to the area where the rotation clamp is installed, and second and third incisions are formed in the area of the inner frame corresponding to the area where the pair of support clamps are installed. Can be.

The rotary clamp is positioned to penetrate the first incision so as to further protrude from one side of the inner frame adjacent to the double object, and rotates in contact with the double object directly when the inner frame moves up and down relative to the double object. ; And a rotating clamp bent portion that is formed to be bent at an end of the rotating clamp contact portion.

The pair of support clamps are positioned so as to protrude further from one side of the inner frame through the second and third incisions when the pair of support clamps rotate in conjunction with the rotation clamp, respectively, A support clamp support for supporting both objects; And a support clamp bent portion formed to be bent at an end of the support clamp support portion.

When the pair of support clamp is rotated more than a predetermined number in conjunction with the rotation of the rotating clamp provided in the inner frame, may further include a support clamp rotation limiting means for limiting further rotation of the pair of support clamp.

The support clamp rotation limiting means is a side wall that forms the second and third incisions, and when the pair of support clamps are rotated by a certain amount or more, the support clamp may be restricted from being rotated by the side wall.

The support clamp may further include an anti-slip pad provided at a portion in contact with both objects.

The rotary clamp bend may have a heavier weight than the rotary clamp contact.

The support clamp bend may have a heavier weight than the support clamp support.

After the lifting object is disposed between the plurality of inner frames, a load distribution unit may be further provided to distribute the load applied to the outer frame and the plurality of links during the lifting of the lifting object.

The load dispersing unit may include: a load dispersing rod connected to an upper portion of the plurality of inner frames, respectively, extending in an upward direction with respect to an upper surface of the inner frame to pass through holes formed in the base frame; And a fastening part fastened to an end portion of the load distributing rod at an upper side of the through hole.

The through hole may be formed in a long hole shape.

The fastening part may be screwed to the load distributing rod to adjust the position to be fastened along the longitudinal direction of the load distributing rod.

A sensing sensor provided in the inner frame to check whether the object is fixed to the support clamp; And a lamp provided in the outer frame to emit light according to a detection value of the detection sensor.

The detection sensor may be an infrared sensor or a laser sensor.

The object is, according to the present invention, a pair of base frames spaced apart from each other and connected to each other; A plurality of clamping units connected to both lower ends of the pair of base frames to support the lifting object to be lifted; And a plurality of clamping units disposed between the pair of base frames, the hinge rotating motions of which are connected to the pair of base frames so as to be connected to each other, and the plurality of clamping units facing each other in a state in which the hinge rotating motions face each other. It includes at least two hinge rotation bar for adjusting the mutual spacing, one end of the hinge rotation bar is connected to the rope for lifting the lifting object, the lifting object is disposed between the plurality of clamping units and the tension on the rope When the hinge rotation bar is applied to rotate the other end, the other end of the hinge rotation bar slides along the upper surface of the lifting object in contact with the upper surface of the lifting object, and the other end of the hinge rotation bar by the tension of the rope. Pressing the upper surface of the object between the two, a pair of base frame is the hinge rotation bar and the hinge axis It includes a plurality of outer frames connected through, the clamping unit is disposed between a plurality of outer frames facing each other adjacent to each other, including a plurality of inner frames and a plurality of inner frames connected via a plurality of links, the inner A sensing sensor provided in the frame to check whether the object is fixed to the clamping unit; A lamp provided in the base frame to emit light according to a detection value of the detection sensor; A lifter for tensioning the rope to lift the lifter; A camera provided in the lifter for photographing the light emission state of the lamp; And a monitor provided in the lifter for displaying the photographing state of the camera.

According to the present invention, it is possible to lift the lifting object through the operation of the clamp module using gravity without using electricity, as well as to lift the lifting object having various width sizes by using the inner frame which is adjustable in width. In this case, the lifting object may be prevented from sliding by pressing the lifting object with no power.

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

1 is a perspective view showing a multiple beam lifting apparatus having a clamping unit using gravity according to an embodiment of the present invention.
2 is a perspective view illustrating a state in which a multiple beam lifting apparatus having a clamping unit using gravity according to an embodiment of the present invention supports an H beam.
3 is a perspective view showing a state in which load injection means is additionally added to a multi-bore weight lifting device having a clamping unit using gravity according to an embodiment of the present invention.
4 is a perspective view showing a clamp unit of a multiple beam lifting apparatus having a clamping unit using gravity according to an embodiment of the present invention.
5 and 6 are state diagrams showing a state in which the tension applied to the rope of the multiple beam lifting apparatus having a clamping unit using gravity of FIG. 2 increases.
7 and 8 are state diagrams showing a state in which the tension applied to the rope of the multiple beam lifting apparatus provided with the clamping unit using gravity of FIG. 2 is reduced.
9 and 10 are state diagrams showing a state in which the tension applied to the rope of the multiple beam lifting apparatus having the clamping unit using gravity of FIG. 3 increases.
11 and 12 are state diagrams showing a state in which the tension applied to the rope of the multiple beam lifting apparatus including the clamping unit using gravity of FIG. 3 is reduced.
13 and 14 are views showing a change state of the outer frame and the link in the multi-bore lifting device having a clamping unit using gravity of FIGS. 2 and 3.
15 to 17 is a view showing that the position of the load distribution unit is changed in accordance with the change in the width of the H-beam which is a double object.
18A to 18E are state diagrams illustrating a state in which a multi-beam lifting device having a clamping unit using gravity according to an embodiment of the present invention sequentially lifts one or more H-beams.
FIG. 19 is a diagram illustrating a multiple payload system having a clamping unit using gravity according to an exemplary embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

The multiple beam lifting device (hereinafter referred to as "lifting device") having a clamping unit using gravity according to the present invention is automatically operated by gravity without additional power in addition to the power for applying tension to the rope to be described later. Alternatively, a plurality of lifting objects, specifically, an H-beam or an I-beam (hereinafter, referred to as “h beam”) may be lifted.

In addition, the lifting apparatus according to the present invention automatically adjusts the width between the lifting apparatus, the inner frame and the clamping unit, which will be described later, in response to the width size of the H beam so as to lift the H beam having various width sizes. . In addition, it is possible to prevent the H-beam from slipping laterally or longitudinally during double lifting of the H-beam.

In addition, the lifting apparatus according to the present invention is to move one or a plurality of multi-stacked stacked H-beams at a time, or to lift a single H-beams and then placed on the other H-beam beams arranged in a plurality of H at a time The beam can be moved by lifting.

As shown in the drawings, the lifting device according to an embodiment of the present invention, a pair of base frame 100 and spaced apart from each other and connected to each other, the lower end of both sides of the pair of base frame 100 It is disposed between the plurality of clamping units 110 and the pair of base frames 100 that support the lifting objects (hereinafter, referred to as H beams) to be connected and lifted, respectively, and a pair of base frames 100. Hinge rotational movement is connected to the at least one, and at least two simultaneously adjusting distances between the plurality of clamping units 110 facing each other in a state in which the hinge rotational movements are spaced apart from each other. Hinge rotating bar 150 is included.

Here, the pair of base frames 100 are integrally connected to each other through a separate connection frame.

In addition, the pair of base frames 100 each include a plurality of outer frames 101 connected through the hinge rotation bar 150 and the hinge shaft 102. Specifically, as illustrated in FIGS. 1 to 3, outer frames 101 are formed in both end regions of the base frame 100 so as to face the inner frames 113 to be described later.

The plurality of clamping units 110 are connected to both end portions of the pair of base frames 100, that is, the outer frames 101, respectively, to support the H beam 160, which is a double object. The clamping unit 110 is disposed between a plurality of outer frames 101 facing each other in a state spaced apart from each other, but a plurality of inner frames (connected via a plurality of outer frames 101 and a plurality of links 112) 113). More specifically, as shown in FIGS. 1 to 3, when four outer frames 101 are provided, four inner frames 113 are provided to face each other on four outer frames 101. However, the present invention is not limited thereto, and for example, when the outer frames 101 are provided in multiples of 8, 12, etc., the inner frames 113 may also be provided in the same number corresponding to the number of the outer frames 101. have.

The plurality of clamping units 110 including the inner frame 113 and the link 112 described above will be described in more detail when describing the mutual motion relationship with the hinge rotation bar 150.

As shown in Figure 5 to 12, at least two hinge rotation bar 150, the hinge rotational movement is connected to the pair of base frame 100 between the pair of base frame 100, As the hinge rotates, a plurality of clamping units 110 facing each other in a state spaced apart from each other among the plurality of clamping units 110, that is, between the inner frames 113 facing each other with the H beam 160 therebetween. To adjust the distance at the same time.

In the present embodiment, as shown in Figs. 1 to 3, the outer frame 101 and the inner frame 113 are provided in four, respectively, a pair of hinge rotation bar 150 is disposed adjacent to each other It is provided in two so as to be connected to the inner frame 113, respectively. However, the present invention is not limited thereto, and when the outer frame 101 and the inner frame 113 are provided in eight or twelve, respectively, multiples of four, the hinge rotation bars 150 may be provided in four or six halves. Can be. In the following description, the outer frame 101 and the inner frame 113 are provided with four and the hinge rotation bar 150 is provided with two cases.

1 to 3, a rope for lifting the H beam 160 disposed between two pairs of inner frames 113 facing each other at one end of the pair of hinge rotation bars 150. 151 is connected. Here, the other end of the rope 151 is connected to the boom of a heavy lifter such as a crane. That is, the tension applied to the rope 151 by the crane operation is adjusted, and when pulling up the rope 151, one end of the hinge rotation bar 150 is rotated in the upper direction about the hinge axis (102).

On the other hand, the hinge rotation bar 150 is connected to the base frame 100 through the hinge shaft 102, specifically, as shown in Figures 1 to 3, 5 to 12, the hinge shaft 102 The hinge rotating bar 150 and the outer frame 101 is interposed between the hinge bracket 103 to rotate simultaneously with the hinge rotating bar 150. That is, as tension is applied to the rope 151 connected to one end of the hinge rotating bar 150, the hinge rotating bar 150 and the hinge bracket 103 are rotated at the same time.

In summary, as illustrated in FIGS. 5, 6, 9, and 10, the operator moves the base frame 100 to arrange the H beam 160 between the plurality of internal frames 113, and then operates the crane. When the hinge rotating bar 150 is rotated by applying tension to the rope 151, the hinge rotating bar 150 rotates about the hinge axis 102. In this case, the other end of the hinge rotation bar 150 slides along the length direction of the top surface of the H beam 160 in a state of being in contact with the top surface of the H beam 160. That is, when tension is applied to the rope 151 to lift the H beam 160, the inclination angle of the hinge rotation bar 150 with respect to the top surface of the H beam 160 becomes larger, and thus, a clamp module to be described later. The other end of the hinge rotation bar 150 presses the H beam 160 in comparison with the initial state in the state in which the H beam 160 is clamped or supported by the 114.

The hinge rotation bar 150 uses the principle of the lever, and the H-beam 160, which is lifted by pressing the upper surface of the H-beam 160 during the lifting of the H-beam 160, slides in the lateral or longitudinal direction. This prevents the lifting and improves the stability of the lifting operation.

The above-described pressing force of the hinge rotating bar 150 is one H-beam 160 is disposed between the inner frame 113, while the H-beam 160 is supported by the clamp module 114 or Irrespective of the case in which the plurality of H beams 160 are arranged in a multi-stacked state, the H beams 160 are similarly generated in the H beams 160 of the top layer.

On the other hand, one end of the hinge rotation bar 150 is raised or lowered by adjusting the tension applied to the rope 151, the other end of the hinge rotation bar 150 slides more naturally along the upper surface of the H-beam 160 It is desirable to allow movement. To this end, as shown in Figures 1 to 3, 5 to 12, in the present embodiment is provided with a roller 152 in sliding contact with the upper surface of the H-beam 160 at the other end of the hinge rotation bar 150. have. However, the present invention is not limited thereto, and other means may be provided at the other end of the hinge rotating bar 150 to minimize the frictional force with the top surface of the H beam 160 in addition to the roller 152 described above.

On the other hand, in the multi-beam lifting device having a clamping unit using gravity according to the present embodiment does not lift the lifting object (H beam) hinge hinge bar 150 is approximately arm shape (8) shape It is necessary to prevent it from going backward when lifting H-Bo.

In order to solve this problem, in this embodiment, as shown in FIGS. 1 to 3, the rotation limit bar 104 is provided to limit the upper rotation of the hinge rotation bar 150.

The rotation limit bar 104 contacts the hinge rotation bar 150 to limit further rotation of the hinge rotation bar 150 when the hinge rotation bar 150 rotates in one direction. It may be applied in a separate configuration for connecting the frame 100 or in a configuration connected integrally with a pair of base frame 100. Therefore, the base frame 100 may include a rotation limit bar 104 for limiting the rotation angle of the hinge rotation bar 150.

Hereinafter, the clamping unit 110 described above will be described in more detail through the mutual coupling relationship and the movement relationship with the hinge rotation bar 150.

The inner frame 113 provided with the clamp module 114 to be described later, the hinge shaft 102 and the lifting wire 111 so as to approach or be spaced apart from the outer frame 101 in conjunction with the rotation of the hinge rotation bar 150. Is connected via).

6, 8, 10, and 12, one end of the elevating wire 111 is connected to the hinge bracket 103 and the other end is connected to the inner frame 113. Therefore, the hinge bracket 103 is also rotated at the same time by the rotation of the hinge rotating bar 150, and the lifting wire 111 is wound around the hinge bracket 103 or the hinge bracket 103 is rotated according to the rotation direction of the hinge bracket 103. 103).

In detail, when one end of the hinge rotation bar 150 to which the rope 151 is connected rotates upward with respect to the hinge axis 102, the inner frame 113 is spaced apart from the outer frame 101 and simultaneously lifted to descend. The wire 111 is properly fixedly connected to the hinge bracket 103. At this time, the mutual spacing or the spacing of the pair of inner frames 113 facing each other gradually decreases.

On the contrary, as shown in FIGS. 7, 8, 11, and 12, when one end of the hinge rotation bar 150 to which the rope 151 is connected rotates downward about the hinge axis 102, the inner frame 113. The lifting wire 111 is properly fixedly connected to the hinge bracket 103 so that the lifting is performed. At this time, the interval between the pair of inner frames 113 facing each other gradually increases.

That is, the inner frame 113 is not lifted by a separate driving source, but lifts in conjunction with the rotation of the hinge rotation bar 150 and has a structure capable of approaching and spaced apart from the outer frame 101.

5, 6, 9, and 10, when the hinge rotation bar 150 rotates in one direction, the inner frame 113 connected to the lifting wire 111 is a link movement of the plurality of links (112) The external frame 101 is approached by the attraction force of the elevating wire 111 and moves upward. Thus, the distance between the pair of inner frames 113 facing each other increases.

7, 8, 11, and 12, when the hinge rotation bar 150 rotates in the other direction, the inner frame 113 connected to the lifting wire 111 is a link motion of a plurality of links. And by the attraction of the elevating wire 111 is moved away from the outer frame 101 and in the downward direction. Accordingly, the distance between the pair of inner frames 113 facing each other is reduced.

According to the present invention, when the H beam 160 is disposed between two pairs of inner frames 113 facing each other, the inner frame 113 is approached or spaced apart from the outer frame 101 to be adjacent to each other. The spacing between the pair of opposing inner frames 113 may be adjusted to a distance corresponding to the width of the H beam 160.

Thus, the present invention has the great advantage of being able to double the H-beams 160 having various width sizes without the need for a separate additional configuration.

Here, the plurality of links 112 connecting the outer frame 101 and the inner frame 113, such that the inner frame 113 approaches or is spaced apart from the outer frame 101 by the attraction force of the lifting wire 111, It is preferable to properly connect the outer frame 101 and the inner frame 113.

On the other hand, when lifting the rope 151 while lifting the rope 151 in a state in which the H-beam 160 is supported through the clamp module 114 to be described later, the load of the H-beam 160 is a plurality of links ( 112, the outer frame 101 and the inner frame 113. Therefore, not only the inner frame 113 but also the plurality of links 112 and the outer frame 101 require proper material selection and rigid design according to the load of the H beam 160.

The present invention distributes the load transmitted to the inner frame 113, the plurality of links 112 and the outer frame 101 when lifting the H beam 160, in particular, the plurality of links 112 and the outer frame ( The load distribution unit 170 may be further provided to minimize the load transmitted to the 101 to design the link 112 and the outer frame 101 to be lighter in weight.

3 and 9 to 12, the load distribution unit 170 is connected to the upper portion of the plurality of inner frame 113, respectively, extending in an upward direction with respect to the upper surface of the inner frame 113 base A load distribution rod 172 installed to penetrate the through hole 171 formed in the frame 100, and a fastening portion 173 fastened to an end portion of the load distribution rod 172 at an upper side of the through hole 171. do.

Therefore, as shown in FIGS. 13 and 14, the load of the H beam 160 is transmitted only to the base frame 100 through the load distribution rod 172, and thus, the plurality of links 112 and the outer frame 101. It can be designed to be more lightweight.

Here, the through hole 171 has a long hole shape, specifically, a long hole shape that is formed longer in the width direction of the H-beam 160. In addition, the fastening part 173 is preferably screwed to the load distributing rod 172 to adjust the position to be fastened along the longitudinal direction of the load dispersing rod 172.

First, when the width of the H beam 160 is 200 mm, for example, when the inner frame 113 approaches the H beam 160 to maximize the H beam 160, as shown in FIG. 15, The spacing between the pair of load distribution rods 172 is also reduced and the fastening portion 173 is in contact with the upper surface of the base frame 100.

At this time. When the H-beam 160 is lifted by applying the tension to the rope 151 and rotating the hinge rotation bar 150, the fastening part 173 and the load are raised while the base frame 100 around the through hole 171 is raised. The dispersion rod 172 is raised. At this time, since the load of the H-beam 160 is transmitted upward only through the load distribution rod 172, it is possible to minimize the transmission of the load to the plurality of links 112 and the outer frame 101.

Next, when the width of the H beam 160 to be lifted is 250 mm, for example, when the inner frame 113 approaches the H beam 160 to the maximum to lift the H beam 160, the beam shown in FIG. As described above, the distance between the pair of load distribution rods 172 is also reduced compared to the initial stage, but the fastening portion 173 has a state spaced apart from the upper surface of the base frame 100.

In this case, the operator adjusts the fastening position of the fastening part 173, that is, the fastening part 173 adjusts the position of the fastening part 173 coupled to the load distributing rod 172 such that the fastening part 173 contacts the upper surface of the base frame 100. Adjust.

Subsequently, when the rope 151 is tensioned to lift the H beam 160 by rotating the hinge rotation bar 150, the load of the H beam 160 is only upward through the load distribution rod 172. Since it is transmitted, load transmission to the plurality of links 112 and the outer frame 101 can be minimized.

Next, when the width of the H beam 160 to be lifted is 300 mm, for example, when the inner frame 113 approaches the H beam 160 to the maximum to lift the H beam 160, the beam shown in FIG. As described above, the spacing between the pair of load distribution rods 172 is also reduced compared to the initial stage, but the fastening portion 173 has a state further spaced apart from the upper surface of the base frame 100.

In this case, the operator similarly adjusts the fastening position of the fastening part 173, that is, the position of the fastening part 173 coupled to the load distributing rod 172 such that the fastening part 173 contacts the upper surface of the base frame 100. Can be adjusted. Subsequently, when the rope 151 is tensioned to lift the H beam 160 by rotating the hinge rotation bar 150, the load of the H beam 160 is only upward through the load distribution rod 172. Since it is transmitted, load transmission to the plurality of links 112 and the outer frame 101 can be minimized.

However, in general, since the work site usually lifts the H beam of similar standard continuously, the situation in which the operator adjusts the fastening unit 173 may not occur frequently.

That is, in the present invention, the load of the H-beam 160 is transmitted to the plurality of links 112 and the outer frame 101 through the load dispersing unit 170 including the load distributing rod 172 and the fastening unit 173. By not making it possible, the weight reduction design of the plurality of links 112 and the outer frame 101 becomes possible.

Hereinafter, a plurality of clamping units 110 of the lifting device according to an embodiment of the present invention will be described in more detail.

As illustrated in FIGS. 1 to 4, the plurality of clamping units 110 are connected to both lower ends of the pair of base frames 100 to support the H beam 160 to be lifted, as described above. And an inner frame 113 and a clamp module 114.

The clamp module 114 rotates itself by gravity rather than a separate driving source to substantially support the H beam 160. When lifting the H beam 160 disposed between the plurality of clamping units 110, the clamp module 114 directly contacts the H beam 160 to support the H beam 160.

The clamp module 114 may be provided in the lower region of the inner frame 113. The clamp module 114 contacts the H beam 160 as the inner frame 113 moves up and down while adjacent to the H beam 160, and rotates by the contact with the H beam 160 to rotate the H beam. Support 160.

As shown in FIG. 4, the clamp module 114 includes a rotation clamp 115 to which rotation is freely connected with respect to the inner frame 113 and at least one support clamp installed on both sides of the rotation clamp 115. 118;

However, in this embodiment, the support clamp 118 is described based on a pair, but is not limited thereto and may be provided with at least one.

Here, the rotation clamp 115 is formed so as to rotate by contact with the H beam 160 without a separate driving source and to rotate to a specific position by gravity when the contact with the H beam 160 is released. . The pair of support clamps 118 are connected to the rotation clamp 115 to rotate simultaneously with the rotation of the rotation clamp 115.

Meanwhile, in the present embodiment, as shown in FIG. 4, in the initial state in which the rotation clamp 115 does not contact the flange 161 of the H beam 160, a part of the rotation clamp 115 is connected to the H beam ( It is preferable to further protrude toward the H beam 160 from one side of the inner frame 113 adjacent to the 160. Accordingly, when the inner frame 113 is moved up and down, the protruding portion of the rotation clamp 115 is able to rotate in contact with the flange 161 of the H-beam 160.

To this end, in the present embodiment, a first incision 122 is formed in the region of the inner frame 113 corresponding to the region where the rotary clamp 115 is installed.

Similarly, when the pair of support clamps 118 rotate in conjunction with the rotary clamp 115, a portion of the support clamps 118 further protrudes from one side of the inner frame 113 toward the H beam 160 to be H. It is preferable to support the flange 161 of the H beam 160 in contact with the beam 160. To this end, second and third cutouts 123 and 124 are formed in the region of the inner frame 113 corresponding to the region where the pair of support clamps 118 are installed.

The rotation clamp 115 rotates in contact with the flange 161 of the H beam 160 while the inner frame 113 is freely connected to the inner frame 113 while the inner frame 113 is vertically moved with respect to the H beam 160. .

Here, the vertical movement of the inner frame 113 along the height direction of the H-beam 160 occurs when the H-beam 160 stacked in one or multiple stages is lifted.

Specifically, the rotation clamp 115 is rotatably installed in the inner frame 113 through the first rotating rod 125, the first and second rotary connecting plate (128,129) is provided at both ends of the first rotating rod 125 It is provided integrally. That is, when the first rotary rod 125 is rotated, the first and second rotary connecting plates 128 and 129 rotate at the same time.

As shown in FIG. 4, the rotation clamp 115 is positioned to penetrate the first incision 122 so that the flange of the H beam 160 when the inner frame 113 moves up and down relative to the H beam 160. A rotation clamp contact portion 116 that rotates in direct contact with 161 and a rotation clamp bent portion 117 that is formed to be bent at an end of the rotation clamp contact portion 116.

Meanwhile, as described above, the rotation clamp 115 rotates by contact with the H beam 160 without a separate driving source and moves to a specific position by gravity when the contact with the H beam 160 is released. It is formed to rotate. Accordingly, the rotary clamp bent portion 117 is rotated to the rotary clamp contact portion 116 such that the rotary clamp bent portion 117 is located below the rotary clamp contact portion 116 in a state of not being in contact with the H beam 160. It is desirable to have a relatively heavy weight. Accordingly, since the rotary clamp contact portion 116 is positioned to penetrate the first incision 122 in a state where the rotary clamp 115 does not contact the H beam 160, the H clamp is raised and lowered by the inner frame 113. A standby state is provided for contacting the flange 161 of the beam 160.

In order for the rotary clamp bent portion 117 to have a heavier weight than the rotary clamp contact portion 116, a predetermined weight or more may be additionally installed on the rotary clamp bent portion 117 or the rotary clamp bent portion 117 may be rotated. It may also be made of a material having a heavier weight than 116.

The pair of support clamps 118, the rotation is freely installed in the inner frame 113 is connected via the rotation clamp 115 and the rotational linkage 132, and at the same time rotates when the rotation clamp 115 is rotated The H beam 160 is supported while being in contact with the H beam 160.

Specifically, the pair of support clamps 118 are disposed on both sides of the rotary clamp 115 with respect to the rotary clamp 115, respectively, the second rotary rod 126 and the third rotary rod 127 in the inner frame 113 Rotation is freely installed. On the other hand, the second rotary rod 126 and the third rotary rod 127 respectively connected to the pair of support clamps 118 are provided with a third rotary connecting plate 130 and the fourth rotary connecting plate 131, respectively.

That is, the third rotary connecting plate 130 and the fourth rotary connecting plate 131 are formed to rotate simultaneously when the second rotating rod 126 and the third rotating rod 127 rotate.

As shown in FIG. 4, the pair of support clamps 118 are positioned to penetrate through the second and third incisions 123 and 124 when the rotation clamp 115 rotates, respectively, so that the flanges of the H beam 160 are formed. The support clamp support part 119 which directly contacts the 161 and supports the H beam 160, and the support clamp bent part 120 which is formed to be bent at an end of the support clamp support part 119.

As described above, the rotary clamp 115 rotates by contact with the H beam 160 without a separate driving source, and the support clamp 118 rotates in conjunction with the rotation of the rotary clamp 115.

On the other hand, when the rotation clamp 115 is not in contact with the H-beam 160, that is, the rotation clamp contact portion 116 is located in the state passing through the first incision 122, a pair of support clamp support 119 ) Is preferably disposed so as not to penetrate through the second and third incisions 123 and 124.

On the contrary, when the rotation clamp contact portion 116 is positioned without penetrating the first incision 122, that is, the rotation clamp contact portion 116 rotates in contact with the flange 161 of the H beam 160. In, the pair of support clamp supports 119 are rotated to penetrate through the second and third incisions 123 and 124 to be in a standby state for supporting the H beam 160.

Here, the support clamp 118, like the rotation clamp 115, is formed to rotate to a specific position by gravity in a state where the contact with the H-beam 160 is released. Accordingly, the support clamp bent portion 120 is connected to the support clamp support portion 119 such that the support clamp bent portion 120 is positioned below the support clamp support portion 119 in a state where it does not contact the H beam 160. It is desirable to have a relatively heavy weight.

In the present embodiment, the support clamp 118 is further provided with a non-slip pad 121 in the contact with the H-beam 160.

The anti-slip pad 121 may be made of any one or more than one of rubber, silicone, and epoxy, and may be provided on the support clamp support 119 contacting the flange 161 of the H beam 160 to lift the H-beam (the weight of the H-beam). 160 further prevents sliding in the longitudinal or lateral direction.

In the embodiment of the present invention, since the rotational force of the rotary clamp 115 is transmitted to the pair of support clamps 118 through the rotary linking unit 132, respectively, the support clamp 118 at the same time as the rotation of the rotary clamp 115 It will also rotate.

The rotary linking unit 132 may include a first rotary linking unit 133 connecting the first rotary connecting plate 128 and the third rotary connecting plate 130, a second rotary connecting plate 129, and a fourth rotary connecting unit 129. It includes a second rotary linking unit 134 for connecting the rotary connecting plate 131.

In the present embodiment, the first rotary linkage unit 133 and the second rotary linkage unit 134 may be applied by a chain or a wire. However, the present invention is not limited thereto, and the first rotational linking unit 133 and the second rotational linking unit 134 may be wound around the first to fourth rotational connecting plates 128, 129, 130, and 131 while having a certain rigidity or more, or may be the first to fourth. If it can be released from the rotary connecting plate (128, 129, 130, 131) is sufficiently applicable.

As shown in FIG. 4, in the present embodiment, when the pair of support clamps 118 are rotated by a predetermined time or more in conjunction with the rotation of the rotation clamp 115, the pair of support clamps 118 may be removed. It further comprises a support clamp rotation limiting means 140 provided on the inner frame 113 to limit the rotation.

That is, as the inner frame 113 is raised, the rotation clamp contact portion 116 first contacts the flange 161 of the H beam 160 to rotate. It passes through the three incisions 123 and 124 and rotates to approach the H-beam 160 side direction.

In this state, when the inner frame 113 is raised, the support clamp support 119 substantially contacts the bottom surface of the flange 161 of the H beam 160 to support the flange 161 of the H beam 160. It is. After the tension is further applied to the rope 151, the tension can be made to lift the H beam 160.

If the support clamp support unit 119 does not limit the rotation angle and the support clamp support unit 119 has a structure capable of rotating 360 degrees with respect to the second and third rotating rods 126 and 127, the support clamp support unit 119 may The beam 160 may not be supported normally.

Therefore, in order for the support clamp support 119 to firmly support the H beam 160, the support clamp rotation limit means 140 for limiting the rotation angle of the support clamp 118 must be provided.

In this embodiment, as shown in Figure 4, the support clamp rotation limiting means 140 is applied to the side wall 141 forming the second and third cutouts (123, 124).

Accordingly, when the pair of support clamps 118 are rotated by a certain amount or more, the support clamps 118, that is, the support clamp supporters 119 are limited to the side walls 141 and are no longer rotated, and at the same time, the H beams ( The H beam 160 may be firmly supported in contact with the bottom surface of the flange 161 of the 160.

Through such a configuration, the lifting apparatus according to the present exemplary embodiment may double the one H beam 160 or the H beam 160 stacked in multiple stages as described above.

In addition, as shown in Figure 18, the lifting device according to the present embodiment, by lifting the one H-beam 160 to be placed on the upper surface of the other H-beam 160, which is pre-arranged, a plurality of H The beam 160 can be raised simultaneously.

First, one H-beam 160 is doubled and seated on an upper surface of at least one H-beam 160 arranged.

Subsequently, when the inner frame 113 is lowered, the rotation clamp contact portion 116 contacts the flange 161 of the H beam 160 to rotate upward in the first incision 122.

Next, when the inner frame 113 is further lowered to release the mutual contact between the rotary clamp contact portion 116 and the flange 161 of the H beam 160, the rotary clamp bent portion 117 rotates by its own weight. And the rotary clamp contact portion 116 protrudes toward the H beam 160 through the first incision 122.

By repeating this process, the support clamp 118 supports the H beam 160 while raising and lowering the inner frame 113, so that the lifting apparatus according to the present embodiment can replace one H beam 160 with another H beam 160. After mounting on the upper surface, it is possible to lift a plurality of at the same time.

In addition, the lifting apparatus of the present embodiment may selectively lift only one or two or more H-beams 160 among the H-beams 160 stacked in a plurality of stages in some cases.

On the other hand, in the lifting device according to the present embodiment, as shown in Figure 19, the worker is a normal rotation state of the rotation clamp 115 and the support clamp 118, specifically, the support clamp 118 is the H-beam 160 It further includes a sensor 180 and the lamp 190 so that the naked eye can easily check whether or not the normal contact with the flange 161.

The detection sensor 180 is provided in the inner frame 113 and checks the extent to which the support clamp 118 is in contact with and supported by the flange 161 of the H beam 160.

The detection sensor 180 may detect a rotation angle of the support clamp 118, and the detection sensor 180 detects and supports a distance between the support clamp 118, that is, the support clamp support 119, from the installed position. The degree of rotation of the clamp 118 is checked. Here, the sensor 180 may be applied as an infrared sensor or a laser sensor.

The lamp 190 is provided in the base frame 100 and emits light according to the detection value of the detection sensor 180 so that the operator can easily check with the naked eye.

In more detail, the lamp 190 may include red and green LEDs, and the control unit (not shown) receives the detection value of the detection sensor 180 and the detection value of the detection sensor 180 is within a preset range. If present, a signal may be transmitted to the lamp 190 to cause the green LED to emit light. On the other hand, if it is determined that the detection value of the detection sensor 180 is outside the set range, the control unit (not shown) transmits a signal to the lamp 190 to cause the red LED to emit light.

19 is a view showing a lifting system having a clamping unit using gravity according to an embodiment of the present invention.

Hereinafter, a lifting system (hereinafter referred to as a lifting system) having a multi-beam support unit using gravity according to an embodiment of the present invention will be described with reference to FIG. 19.

Lifting system according to an embodiment of the present invention, an embodiment of the present invention having the above-described detection sensor 180, lamp 190, the base frame 100, the clamping unit 110 and the hinge rotation bar 150. And a lifting device according to the lifting device 191 for applying tension to the rope 151 connected to one end of the hinge rotation bar 150 so as to substantially lift the H beam 160, and a ramp provided in the lifting device 191. A camera 193 for photographing the light emitting state of the 190 and a monitor 194 provided in the heavy lifter 191 for displaying the shooting state of the camera 193.

In this embodiment, the lifter 191 may be applied to the tower crane 191, the towel crane boom 192 is provided with a camera 193 to shoot the lifting device in the downward direction, substantially according to the present embodiment. .

The monitor 194 is installed inside the driver's seat of the tower crane 191 to display an image captured by the camera 193.

Accordingly, the tower crane driver monitors the image displayed on the monitor 194 to check whether the aforementioned clamping unit 110 properly supports the H beam 160, thereby more stably lifting the H beam 160. Will be able to perform

In addition, the present invention includes a sensor 180, a lamp 190, a camera 193 and a monitor 194, thereby reducing the number of workers to assist the lifting operation of the H-beam 160 on the ground. Thus, labor costs can be saved.

The embodiments and drawings attached to this specification are merely to clearly show some of the technical ideas included in the present invention, and those skilled in the art can easily infer within the scope of the technical ideas included in the specification and drawings of the present invention. Modifications that can be made and specific embodiments will be apparent that both are included in the scope of the invention.

100: base frame 103: hinge bracket
104: rotation limit bar 110: clamping unit
111: lifting wire 112: link
113: internal frame 114: clamp module
115: rotation clamp 116: rotation clamp contact
117: rotary clamp bend 118: support clamp
119: support clamp support 120: support clamp bent portion
121: non-slip pad 132: rotation interlocking portion
140: support clamp rotation limit means 141: side wall
150: hinge rotation bar 152: roller
160: H beam 170: load distribution unit
171: through hole 172: load distribution rod
173: fastening portion 180: detection sensor
190: lamp 191: lift
192: tower crane boom 193: camera
194: monitor

Claims

A pair of base frames spaced apart from each other and connected to each other;
A plurality of clamping units connected to both lower ends of the pair of base frames, respectively, to support lifting objects to be lifted; And
Is disposed between the pair of base frame, the hinge rotational movement is connected to the pair of base frame, the plurality of the plurality of clamping units facing each other in a state facing away from each other as the hinge rotational movement At least two hinged rotation bars for adjusting the mutual spacing of the clamping unit,
A rope for lifting the lifting object is connected to one end of the hinge rotating bar, and the lifting object is disposed between the plurality of clamping units, and when the hinge rotating bar is rotated by applying tension to the rope, the hinge rotating bar. The other end of the slide is moved along the upper surface of the lifting object in a state in contact with the upper surface of the lifting object, the other end of the hinge rotation bar by the tension of the rope presses the upper surface of the lifting object Multi beam lifting device having a clamping unit using.

The method of claim 1,
The pair of base frames includes a plurality of outer frames connected through the hinge rotation bar and a hinge axis,
The clamping unit includes a clamping unit using gravity, which is disposed between a plurality of outer frames facing each other and includes a plurality of inner frames connected through the plurality of outer frames and the plurality of links. One multi beam lifting device.

delete

The method of claim 1,
The other end of the hinge rotating bar is a multi-bore lifting device having a clamping unit using gravity, characterized in that the roller is in sliding contact with the upper surface of the object of the lifting weight.

The method of claim 2,
The inner frame is a multi-bore weight lifting device having a clamping unit using gravity, characterized in that connected to the hinge shaft and the lifting wire so as to approach or be spaced apart from the outer frame in connection with the rotation of the hinge rotation bar. .

The method of claim 5,
The hinge shaft includes a hinge bracket interposed between the hinge rotation bar and the outer frame to rotate in conjunction with the hinge rotation bar when the hinge rotation bar is rotated.
One end of the lifting wire is connected to the hinge bracket and the other end is connected to the inner frame, multi-weight lifting apparatus having a clamping unit using gravity.

The method of claim 1,
The base frame has a multiple clamping unit using gravity, characterized in that it comprises a rotation limit bar to contact with the hinge rotation bar to limit the rotation of the hinge rotation bar when the rotation in one direction of the hinge rotation bar. Lifting lifting device.

The method of claim 5,
When the hinge rotation bar rotates in one direction, the inner frame connected to the lifting wire moves in conjunction with the rotation of the hinge rotation bar in a direction approaching the outer frame while being lifted by the link motion of the plurality of links. and,
When the hinge rotation bar is rotated in the other direction, the inner frame connected to the elevating wire moves in conjunction with the rotation of the hinge rotation bar in a direction away from the outer frame while being lowered by the link motion of the plurality of links. Multi-compensation lifting device having a clamping unit using gravity, characterized in that.

The method of claim 2,
The plurality of clamping units may include a clamping module configured to contact the lifting object and support the lifting object when lifting the lifting object disposed between the plurality of clamping units. Multi beam lifting device provided with.

10. The method of claim 9,
The clamp module is provided in the lower region of the inner frame,
And a clamping unit using gravity, the rotary clamp being freely connected to the inner frame and at least one support clamp installed below the rotary clamp.

The method of claim 10,
The rotation clamp is connected to the inner frame to rotate in contact with the lifting object while the inner frame is moving up and down with respect to the lifting object,
The support clamp has a clamping unit using gravity, which is connected through the rotation clamp and the rotation interlocking part and simultaneously rotates when the rotation clamp rotates to contact the flange of the lifting object to support the lifting object. One multi beam lifting device.

The method of claim 11,
The at least one support clamp is a pair of support clamps,
The rotation clamp and the pair of support clamps are rotatably installed in the inner frame through first, second and third rotation rods, respectively.
First and second rotary connecting plates are further provided at both ends of the first rotary rod connected to the rotary clamp, and third and fourth rotary rods are respectively connected to the second and third rotary rods respectively connected to the pair of support clamps. There will be more plates,
The rotation interlocking unit,
A first rotary linking unit connecting the first rotary connecting plate and the third rotary connecting plate; And
And a second rotary linkage unit connecting the second rotary connecting plate and the fourth rotary connecting plate to each other.

The method of claim 11,
And the rotary linkage unit is a chain or a wire.

The method of claim 11,
A first incision opening is formed in an area of the inner frame corresponding to an area in which the rotation clamp is installed,
And a second and third incision formed therethrough in the region of the inner frame corresponding to the region in which the pair of support clamps are installed.

15. The method of claim 14,
The rotation clamp,
A rotation positioned to penetrate the first incision so as to protrude further from one side of the inner frame adjacent to the lifting object, and rotating in direct contact with the lifting object when the inner frame moves up and down with respect to the lifting object Clamp contacts; And
Multi-beam lifting device having a clamping unit using gravity, characterized in that it comprises a rotary clamp bent to be bent at the end of the rotary clamp contact portion.

15. The method of claim 14,
Each of the pair of support clamps,
When the pair of support clamps rotate in conjunction with the rotation clamp, the pair of support clamps are positioned to protrude further from one side of the inner frame through the second and third incisions, and are in contact with the lifting object to lift the lifting object. Support clamp support for supporting; And
And a support clamp bent portion that is formed to be bent at an end of the support clamp support portion.

15. The method of claim 14,
And a support clamp rotation limiting means for limiting further rotation of the pair of support clamps when the pair of support clamps are rotated by a predetermined time or more in association with the rotational clamp when the rotation clamp is rotated. Multiple beam lifting apparatus having a clamping unit using gravity, characterized in that.

18. The method of claim 17,
The support clamp rotation limiting means is a side wall forming the second and third cutouts, and when the pair of support clamps are rotated more than a predetermined time, the support clamp is restricted from being rotated by the side wall. Multi beam lifting device equipped with a clamping unit using gravity.

The method of claim 11,
The support clamp is a multiple beam lifting apparatus having a clamping unit using gravity, characterized in that it further comprises a non-slip pad provided in the contact portion with the lifting object.

16. The method of claim 15,
And the rotary clamp bent portion has a heavier weight than the rotary clamp contact portion.

17. The method of claim 16,
And the support clamp bent portion has a heavier weight than the support clamp support portion.

The method of claim 2,
Clamping using gravity, characterized in that the load distribution unit for distributing the load applied to the outer frame and the plurality of links during the lifting of the lifting object after the lifting object is disposed between the plurality of inner frames Multi beam lifting device with unit.

The method of claim 22,
The load distribution unit,
Load dispersing rods connected to upper portions of the plurality of inner frames, respectively, extending in an upward direction with respect to an upper surface of the inner frame to pass through holes formed in the base frame; And
And a clamping unit using gravity, wherein the clamping unit is fastened to an end of the load distribution rod at an upper side of the through hole.

24. The method of claim 23,
The through-hole multi-heavy lifting device having a clamping unit using gravity, characterized in that formed in the long hole.

24. The method of claim 23,
The fastening part is a multi-compensation heavy lifting device having a clamping unit using gravity, characterized in that the screw is fastened to the load distributing rod so that the position is fastened along the longitudinal direction of the load distributing rod.

The method of claim 11,
A sensing sensor provided in the inner frame to check whether the lifting clamp is fixed to the support clamp for the object; And
And a lamp configured to be provided on the outer frame to emit light according to the detection value of the sensor.

The method of claim 26,
The sensing sensor is a multiple beam lifting apparatus having a clamping unit using gravity, characterized in that the infrared sensor or a laser sensor.

A pair of base frames spaced apart from each other and connected to each other;
A plurality of clamping units connected to both lower ends of the pair of base frames, respectively, to support lifting objects to be lifted; And
Is disposed between the pair of base frame, the hinge rotational movement is connected to the pair of base frame, the plurality of the plurality of clamping units facing each other in a state facing away from each other as the hinge rotational movement At least two hinged rotation bars for adjusting the mutual spacing of the clamping unit,
A rope for lifting the lifting object is connected to one end of the hinge rotating bar, and the lifting object is disposed between the plurality of clamping units, and when the hinge rotating bar is rotated by applying tension to the rope, the hinge rotating bar. The other end of the slide moves along the upper surface of the lifting object in contact with the upper surface of the lifting object, the other end of the hinge rotation bar by the tension of the rope presses the upper surface of the lifting object,
The pair of base frames includes a plurality of outer frames connected through the hinge rotation bar and a hinge axis,
The clamping unit includes a plurality of inner frames disposed between a plurality of outer frames facing each other and adjacent to each other, and connected through the plurality of links with the plurality of outer frames,
A sensing sensor provided in the inner frame to check whether the object is fixed to the clamping unit;
A lamp provided in the base frame to emit light according to a detection value of the detection sensor;
A lifter for tensioning the rope to lift the lifter;
A camera provided in the lifter for photographing the light emission state of the lamp; And
And a monitor configured to display the photographing state of the camera provided in the lifting device.