KR20090011746A - Safety apparatus of automated shackle assembly - Google Patents

Safety apparatus of automated shackle assembly Download PDF

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Publication number
KR20090011746A
KR20090011746A KR1020070075651A KR20070075651A KR20090011746A KR 20090011746 A KR20090011746 A KR 20090011746A KR 1020070075651 A KR1020070075651 A KR 1020070075651A KR 20070075651 A KR20070075651 A KR 20070075651A KR 20090011746 A KR20090011746 A KR 20090011746A
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KR
South Korea
Prior art keywords
shackle
hook
opening
safety
pin
Prior art date
Application number
KR1020070075651A
Other languages
Korean (ko)
Inventor
황인규
Original Assignee
주식회사 피엔에이치
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Application filed by 주식회사 피엔에이치 filed Critical 주식회사 피엔에이치
Priority to KR1020070075651A priority Critical patent/KR20090011746A/en
Publication of KR20090011746A publication Critical patent/KR20090011746A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A safety device of a shackle assembly of an automatic open type is provided to prevent a safety accident which is generated by a malfunction of an apparatus or a mistake of an operator. A safety device of a shackle assembly of an automatic open type includes followings: a shackle body(220) opening the center part to insert one part of a steel structure; a shackle pin(230) crossing the opened part of the shackle body; an automatic open unit opening an open part by using the shackle pin in the state of closing the opening part; a hook connection unit(210) connected with a hook of a crane; and a safety device(260) fixed on one side of the shackle body.

Description

Safety Apparatus of Automated Shackle Assembly

The present invention relates to a shackle assembly for transporting steel structures, such as H-beams in the construction site, and more specifically, the operator's mistake or mechanical error in performing the separation operation with the steel structure by remote control operation using a remote controller. The present invention relates to a safety device of an auto-opening shackle assembly that mechanically compensates for safety problems caused by malfunction.

Recently, the construction industry is responding to the construction of buildings of the future, which are becoming larger and more versatile, and also tend to become super tall and underground due to limited site conditions. Therefore, in the process of construction of large-scale buildings according to the trend of the construction industry, it is recognized that the steel frame construction that is the foundation is the most important process. Steel construction is an essential construction in the construction process of a large building, and is a process of forming a skeleton of a building. The basic operation of such steel construction is a tower crane installed on a site, lifting various steel structures and assembling them by workers.

In order to install such steel structures, it is necessary to first connect the steel structures to a tower crane using a shackle assembly or the like. That is, as shown in Figure 1, each of the connecting member 120 having the assembling hole 121 on both sides of the upper end of the steel frame structure 110, the shackle assembly to the assembly hole 121 of the connecting member 120 After fastening and fixing the shackle body 131 constituting the 130 using the shackle pin 132 and the nut 133, the hook 140 of the crane is connected to the shackle body 131.

Then, after lifting the steel structure 110 connected to the hook 140 of the crane and moved to the assembly position accurately to temporarily assemble. Thereafter, the worker climbs to the top of the steel structure 110 to separate the hook 140 of the crane from the steel structure 110, and also to separate the shackle assembly 130 from the steel structure (110).

However, in the conventional method as described above, the operation of separating the hook 140 of the crane from the steel frame structure 110 and the shackle assembly 130 from the steel frame structure 110 is performed by a worker's manual work. That is, since the worker has to climb to the top of the steel structure 110 connected to the crane to perform the separation work, there are many risks such as a fall accident, etc., as well as the overall work efficiency is reduced.

As a technique for compensating this problem, "Remote control device of the shackle for H-beam clamping" known from Korean Laid-Open Patent Publication No. 1998-022332, and "Automatic opening and closing type electric hook known from Laid-Open Patent Publication No. 1999-0033087 And "automatic open shackle assembly" known from Japanese Patent Laid-Open No. 2006-0066680, and "teleoperating loading device" known from Japanese Laid-open Patent Publication No. 57-019275. These known technologies are configured to automatically separate the steel structure connected to the crane through a remote control operation.

The technique of Korean Patent Laid-Open Publication No. 1998-022332 is configured to automatically separate a steel structure connected to a crane by moving the shackle pin of the shackle assembly configured to be opened and closed by an existing handle operation according to a remote control signal. However, this technique is not only too complicated but also heavy, as the configuration relationship of the existing shackle assembly is complicated and additionally added to the remote control device. In addition, there is a risk of accident because it is not equipped with a separate safety device for controlling the operation of the operator misoperation.

The technique of Korean Patent Laid-Open Publication No. 1999-0033087 uses a gear train mechanism to move the support member left and right according to a remote control signal, and detects the weight of the steel structure as a separate safety device that controls its operation during a misoperation of an operator. By providing a load cell, it is possible to separate the steel structure automatically connected to the crane in a safe state. However, this technology has a disadvantage that the unit price is expensive as it has an expensive load cell.

Korean Patent Laid-Open Publication No. 2006-0066680 is a technology developed by the inventor of the present invention, and the shackle pin is slid and moved by the elastic force of the elastic body to separate the steel structure, and when the load is applied to the shackle pin, the inclined surface of the lower shackle body And the inclined surfaces of the shackle pins are in close contact with each other, so that the middle portion of the shackle pins is sandwiched between the lower shackle bodies to act as a safety device. However, the safety device of this technology has the disadvantage of being ineffective in manufacturing the actual product.

And the technique of Japanese Patent Laid-Open No. 57-019275 is configured to perform a separation operation with the steel structure by sliding the shackle pin by the elastic force of the elastic body, but a separate safety to control the operation in the wrong operation of the operator There is a risk of accident because it is not equipped.

Therefore, the present invention has been made to solve the problems of the prior art as described above, in the separation operation with the steel structure by remote control operation using a remote controller to solve the safety problems caused by the operator's mistakes or machine malfunctions. By mechanically supplementing, the object of the present invention is to provide a safety device of an auto-opening shackle assembly capable of sufficiently securing the safety of the work.

The present invention for achieving the above object, the shackle body having an opening between the portion of the steel structure can be inserted and supported, the shackle pin capable of linear movement across the opening of the shackle body, and the shackle pin opening portion It is a safety device of the self-opening shackle assembly including an automatic opening means for operating the shackle pin to automatically open the opening part in accordance with an external remote control signal in a closed state. Hook connecting means having a structure capable of being connected to a hook of the hook; It is fixed to one side of the shackle body to be slidably movable in the vertical direction, the upper end portion is coupled to one side of the hook connecting means is moved to the upper or lower direction when a load is applied to the hook connecting means, and when the load is removed, the shackle It characterized in that it comprises a safety means that is inserted into the groove formed in the end portion of the pin or released.

The shackle body of the present invention has a top and bottom through hole penetrating up and down, a pair of spring arrangement holes positioned around the top and bottom through holes, and a top and bottom of the pair of spring arrangement holes. A pair of mood bolts each sealing, and a communication hole communicating left and right with the opening, and the hook connecting means is coupled with the shackle body and the through hole penetrating in the left and right directions so that the hook hook portion connected to the hook of the crane is engaged. A nut-shaped connection portion having a female thread formed perpendicularly to the through hole so as to have a thread, and a thread that is fastened to the female thread of the nut-shaped connection portion, and is disposed along the upper and lower through holes without escaping from the shackle body and protrudes to the top of the shackle body. The bolt part, the filler disposed around the bolt part in the shackle body, and one side of the safety means and the filler through the communication hole. It has a connecting member for connecting to each other, the safety means are respectively arranged in a pair of spring arrangement holes, the upper and lower ends of the pair of springs arranged in close contact with the filler and the mood bolt, respectively, and the vertical direction on one side of the shackle body The upper end portion is coupled to one side of the filler through a connecting member and can be provided with a safety plate fitted into or separated from the groove formed at the end portion of the shackle pin while being integrally behaving.

The nut-shaped connecting portion of the present invention may further include an anti-loosening hole communicating with the female thread at the lower end of the through hole.

The shackle pin of the present invention has a locking groove formed around one end portion thereof, and the safety plate has the same or slightly larger size as the shackle pin and is fitted into the locking groove of the shackle pin when a tension load is applied to the hook connecting means. Can be equipped with a locking hole that serves as a.

The shackle body of the present invention has an opening and a vertical through hole penetrating up and down, the hook connecting means is connected to the hook of the crane and the hook hook portion formed in the cam shape at the bottom, and the hook hook portion penetrates in the left and right directions A nut-shaped connection portion having a female thread formed in a direction perpendicular to the through-hole so as to be coupled to the shackle body, and a thread that is fastened to the female thread of the nut-shaped connection portion, and along the upper and lower through holes without being separated from the shackle body. A bolt portion disposed to protrude to the top of the shackle body, and a plate positioned at the bottom of the nut-shaped connecting portion and in close contact with the hook hook portion, and the safety means includes a spring disposed around the bolt portion between the plate and the shackle body; It is fixed to one side of the shackle body to be slidably movable in the up and down direction, the upper end of which is one side Is coupled may be provided with a safety valve to be released or separated into the insertion groove formed at an end portion of the shackle pin to the plate and integral with the behavior.

The safety device of the automatic open shackle assembly of the present invention mechanically compensates for safety problems caused by a worker's mistake or a malfunction of a machine in performing separation work with a steel structure by remote control operation using a remote controller. It is effective to secure enough.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the safety device of the self-opening shackle assembly according to the present invention will be described in detail.

<First Embodiment>

2 and 3 are schematic front and left side views showing an open state of the shackle pin of the self-opening shackle assembly with safety device according to the first embodiment of the present invention, and FIGS. 4 and 5 are FIGS. Is a front view and a plan view of the shackle body shown in FIG. 6, and FIG. 6 is a perspective view of the filler shown in FIG. 7 and 8 are a perspective view and a bottom view of the hook connecting means shown in FIG. 2, and FIGS. 9 and 10 show a state in which the shackle pin shown in FIG. 2 is closed and a tension load is applied to the hook connecting means. It is a schematic front view and a left side view.

As shown in Figures 2 to 10, the self-opening shackle assembly 200 according to this embodiment is coupled to the hook connecting means 210, which is connected to the hook of the crane, the lower portion of the hook connecting means 210 and Is open to the shackle body 220 and the linear reciprocating movement in left and right directions across the lower opening of the shackle body 220 is closed and inserted into the support of the steel structure while closing the lower opening of the shackle body 220 Shackle pin 230 for supporting the steel structure, and the automatic opening means for operating the shackle pin 230 to automatically open the opening according to the external remote control signal in the state in which the shackle pin 230 closed the opening. do.

The automatic opening means of this embodiment is an elastic means 240 for providing an elastic force to the shackle pin 230 to open the lower opening of the shackle body 220, and the power supply of the electric supply means fixed to one side of the shackle body 220 In accordance with the linear reciprocating movement in the vertical direction in accordance with the shank-dong means 250 that is engaged or released with one side of the shackle pin 230 and the hook connecting means 210 of the shackle body 220 depending on whether or not a tensile load is applied Safety means 260 to move up and down along one side to engage or release one side of the shackle pin 230, and control to transfer the power of the electrical supply means to the shangdong means 250 in accordance with an external remote control signal It also includes a control means for controlling the overall.

Hook connecting means 210 has a conventional structure that can be connected to the hook of the crane, the hook connecting means 210 of this embodiment is left and right so that the hook hook portion (not shown) is easily coupled to the hook of the crane And a nut-shaped connecting portion 211 having a through hole 211 a penetrating in the direction and a female thread 211 b formed in the vertical direction with the through hole 211 a so as to be engageable with the shackle body 220. In addition, the hook connecting means 210 has a screw thread that is fastened to the female thread 211b of the nut-shaped connecting portion 211 and the bolt portion 212 protruding to the top of the shackle body 220 without leaving, and the shackle A filler 213 disposed around the bolt portion 212 in the body 220, and a connecting member 214 connecting one side of the safety means 260 and the filler 213 to be integrally connected to each other. .

The nut-shaped connecting portion 211 preferably further has a release preventing hole 211c communicating with the female thread 211b at the lower end of the through hole 211a. That is, the loosening prevention hole 211c is used to prevent the bolt portion 212 fastened to the nut type connecting portion 211 to be coupled to the hook connecting means 210 to the shackle body 220. And the filler 213 has a connection hole 213a used to connect one side of the safety means 260 and the connection member 214 on one side. At this time, the connection hole 213a may be configured to have a female thread.

The shackle body 220 has first and second support parts 221 and 222 to which the support part of the steel structure is inserted and supported. At this time, between the first and second support parts 221 and 222, openings 223 having a gap in which the support part of the steel structure can be inserted are formed.

In addition, a through hole 224 is formed in the lower portion of the first and second support parts 221 and 222 to penetrate the opening part 223 in the left and right directions, and the through hole 224 has a round shape as shown in FIG. 3. Have One guide protrusion 225 protruding to the lower portion of the through hole 224 is formed in the second support part 222. The guide protrusion 225 serves to guide the shackle pin 230 to slide in the left and right directions within a predetermined range.

And the shackle body 220 has a vertical through hole 226 penetrating up and down with the opening 223. The bolt portion 212 of the hook connecting means 210 is located in the upper and lower through holes 226, wherein the head portion of the bolt portion 212 is located in the opening portion 223 and the stem portion is the upper and lower through holes 226. It is located in the form of penetrating through the top of the protruding. In addition, the shackle body 220 has a pair of spring arrangement holes 227 positioned around the upper and lower through holes 226 and penetrating vertically through the opening portion 223. In addition, the shackle body 220 has a communication hole 228 communicating with the opening portion 223 in the left and right direction from the outside thereof. Here, the communication hole 228 is a place where the connecting member 214 connecting one side of the safety means 260 and the filler 213 is located, the safety means 260 and the filler 213 are integrated in the vertical direction It has a size that can behave sufficiently.

The shackle pin 230 has a length that may slightly protrude to the outside of the first support portion 221 across the first and second support portions 221 and 222 of the shackle body 220, and penetrates the through hole 224. It has a size and shape that can smoothly reciprocate linearly in the left and right directions. That is, the shackle pin 230 has a rounded cross section. The shackle pin 230 has a guide groove 231 to which the guide protrusion 225 of the shackle body 220 is inserted to guide the shackle pin 230. At this time, the guide groove 231 limits the sliding range of the shackle pin 230 in the left and right directions. Therefore, the guide groove 231 may be configured such that the shackle pin 230 has a length enough to completely close and open the opening 223 of the shackle body 220.

And the shackle pin 230 has a fixing groove 232 to which the fixing pin 251 of the shankdong means 250 is fitted and fixed on one side thereof. The fixing groove 232 is preferably configured to be slightly larger than the fixing pin 251 in consideration of the smooth insertion of the fixing pin 251.

In addition, the shackle pin 230 has a locking groove 233 formed along the circumference of one end portion thereof. The locking groove 233 is formed in a position where the shackle pin 230 protrudes outward of the first support part 221 across the first and second support parts 221 and 222, and the hook connecting means 210. Depending on whether or not the tensile load is applied to the portion of the safety device 260 is fitted into the engaging groove 233 is engaged or released.

The elastic means 240 is positioned around the shackle pin 230 and serves to provide an elastic force so that the shackle pin 230 opens the opening 223 of the shackle body 220. As the elastic means 240, a coil spring may be used as in this embodiment. At this time, the coil spring is arranged in a compressed form with a weak strength around the shackle pin 230 is compressed within the range of the guide groove 231 and then returned. That is, the coil spring is compressed when the shackle pin 230 closes the opening 223 of the shackle body 220 as shown in FIG. 9, and returns to its original state when the opening 223 is opened as shown in FIG. 2. .

Shanghai moving means 250 is a linear reciprocating movement in the vertical direction in accordance with the power supply of the electric supply means fixed to one side of the shackle body 220 serves to engage or release with one side of the shackle pin 230. As the moving means 240, a solenoid valve may be used as in this embodiment. That is, the fixing pin 251 of the solenoid valve moves in the vertical direction according to the power supplied from the electric supply means, and the end thereof is inserted into the fixing groove 232 of the shackle pin 230 and fixed, or the end thereof is the fixing groove ( Detached from the 232 to release the coupling with the shackle pin 230.

Safety means 260 is inserted into each of the pair of spring arrangement holes 227 of the shackle body 220, the lower end of the hook connecting means 210 arranged at regular intervals with the upper and lower through holes 226 It is in close contact with the upper end of the filler 213, the upper end has a pair of springs 261 in close contact with the lower end of the mood bolts 229 respectively sealing the spring arrangement hole 227 at the upper part of the shackle body 220. . The pair of springs 261 has a lower end and a pillar of the upper and lower through-holes 226 in a state in which the upper and lower ends thereof are compressed in weak strength while being in close contact with the filler 213 and the mood bolt 229, respectively. Compressed and returned within the gap between the tops of 213. That is, the pair of springs 261 are compressed when the opening 223 of the shackle body 220 is closed by the shackle pin 230 and a tensile load is applied to the hook connecting means 210 as shown in FIG. , When the tensile load applied as shown in Figure 2 is released from the hook connecting means 210 returns to its original state.

And the safety means 260 is located on the side of the shackle body 220 has a safety plate 262 is arranged to be slidable in the vertical direction. At this time, the safety plate 262 has a locking hole 262a of the same size or slightly larger than the through hole 224 of the shackle body 220. Here, when the opening 223 of the shackle body 220 is closed by the shackle pin 230 and the tensile load is applied to the hook connecting means 210, the locking hole 262a of the locking hole 262a is formed. 233) to act as a safety device.

That is, the safety means 260 is a nut-shaped connection portion 211 when a tensile load is applied to the hook connecting means 210 in a state in which the opening 223 of the shackle body 220 is closed by the shackle pin 230. Is moved upward and the pair of springs 261 are compressed, and the safety plate 262 slides upward, so that the locking hole 262a of the safety plate 262 is inserted into the locking groove 233 of the shackle pin 230. Is fitted. Therefore, even when the engagement between the shackle pin 230 and the shank moving means 250 according to the operator's mistake or malfunction of the machine, the shackle pin 230 does not protrude to the outside by the safety plate 262 of the safety means 260. I can't.

And the safety means 260, when the tension load applied is released from the hook connecting means 210, the nut-shaped connecting portion 211 is lowered by the self-weight of the nut-shaped connecting portion 211 and the restoring force of the pair of springs 261 As a result, the safety plate 262 slides downward so that the locking hole 262a of the safety plate 262 is separated from the locking groove 233 of the shackle pin 230.

The control means (not shown) is built in one side of the shackle body 220, the receiving unit for receiving an external remote control signal, and the power supply of the electric supply means according to the signal received from the receiving unit to the moving unit 250 The control circuit section etc. which apply overall control, such as applying. In addition, the control means may be configured to display the working state through the display means for displaying the working state, for example, LED. In addition, the control means may be configured to display through other display means so that the state of the battery of the electricity supply means can be confirmed from the outside.

The automatic open shackle assembly according to the present invention configured as described above is coupled to both sides of the steel structure structure 110 as shown in Figure 1 to combine, transport and separate the steel structure structure 110, the The operation is described as follows.

First, the opening portion 223 of the shackle body 220 of the present invention is positioned on the support of the steel structure, and the through hole 224 of the first and second support portions 221 and 222 coincides with the through hole formed in the support portion. Let's do it. In this state, the worker pushes the shackle pin 230 in the direction of closing the opening 223 of the shackle body 220. Then, the shackle pin 230 moves along the through hole 224, and the fixing pin 251 is inserted into the fixing groove 232 to be fixed. At this time, the fixing pin 251 is moved within a predetermined range in the vertical direction by the elastic force of the coil spring constituting the shank movement means 250. When the fixing pin 251 is inserted into and fixed to the fixing groove 232 of the shackle pin 230, the opening 223 of the shackle body 220 is closed by the shackle pin 230, and the elastic means 240 is closed. Is compressed.

In this way, when the coupling of the shackle assembly 200 and the support of the steel structure of this embodiment is completed, hook the hook of the crane to the hook connecting means 210 to operate the crane to transport the steel structure. Then, when the load of the steel structure is applied to the shackle pin 230 and the tensile load is applied to the hook connecting means 210, the nut-shaped connecting portion 211 moves upward to compress the pair of springs 261 and The safety plate 262 slides upwards so that the locking hole 262a of the safety plate 262 is fitted into the locking groove 233 of the shackle pin 230. Therefore, even when the engagement between the shackle pin 230 and the shank moving means 250 according to the operator's mistake or malfunction of the machine, the shackle pin 230 does not protrude to the outside by the safety plate 262 of the safety means 260. As a result, there is no safety accident that the steel structure falls.

If the crane is loosened after moving the steel structure to a desired position in this state, the tensile load applied to the hook connecting means 210 is released, so that the self-weight of the nut-shaped connecting portion 211 and the restoring force of the pair of springs 261 are applied. The nut-shaped connecting portion 211 moves downward, and the safety plate 262 slides downward so that the locking hole 262a of the safety plate 262 is separated from the locking groove 233 of the shackle pin 230. Is released.

In this state, power is supplied to the electricity supply means to release the fixing pin 251 of the upper moving means 250 from the fixing groove 232 of the shackle pin 230 to release the coupling. Then, the shackle pin 230 is temporarily returned to its original position by the elastic force of the elastic means 240 to open the opening 223 of the shackle body 220. Thus, the shackle assembly 200 of this embodiment is completely separated from the support of the steel structure. Then, the crane is lifted to lower the shackle assembly 200 to the ground and then delivered to the worker for use in installing other steel structures.

In the above embodiment, the spring 261 of the safety means 260 is formed to form a separate spring arrangement hole in the shackle body 220, but is disposed to be located around the bolt portion 212 along the upper and lower through holes 226. You may.

Second Embodiment

The self-opening shackle assembly 300 according to this embodiment is configured in the same manner as the shackle assembly 200 of the first embodiment except that a part of the hook connecting means, the shackle pin and the safety means are modified. Therefore, the same reference numerals are assigned to the same components, but the description thereof will be omitted.

11 and 12 are schematic front and left side views showing an open state of the shackle pin of the self-opening shackle assembly with safety device according to the second embodiment of the present invention, and FIGS. 13 and 14 are FIGS. Fig. 1 is a schematic front view and a left side view showing a state in which the shackle pin shown in Fig. 1 is closed and a tension load is applied to the hook connecting means.

11 to 14, the hook connecting means 310 of this embodiment omits the filler 213 of the first embodiment, except that the lower end of the hook hook portion 314 is configured in a cam shape. It is configured in the same manner as the hook connecting means 210 of the first embodiment.

The shackle pin 330 is configured in the same manner as the hook connecting means 210 of the first embodiment except that the shackle pin 330 has the insertion groove 333 instead of the locking groove 233 of the first embodiment.

Safety means 360 is arranged on the lower end of the nut-shaped connection portion 311, the plate 364 in close contact with the hook hook portion 314, the bolt portion between the plate 364 and the upper end of the shackle body 320 ( A spring 361 is disposed around the periphery of 312, except that the safety plate 362 is fixed to the plate 364 so as to be integrally formed and to be inserted into or removed from the insertion groove 333. It is configured in the same manner as the safety means (260).

The self-opening shackle assembly 300 of this embodiment thus configured operates in the same manner as the shackle assembly 200 of the first embodiment described above. That is, the hook of the crane is hooked to the hook connecting means 310 to operate the crane. Then, as the hook hook portion 314 stands upright, the plate 364 moves downward while compressing the spring 361 by the cam at the bottom thereof, and thus the safety plate 362 moves the shackle pin 330. Inserted into the insertion groove 333 serves as a safety device. Then, when the crane is loosened, the hook hook portion 314 pivots by its own weight, and the plate 364 moves upward by the restoring force of the spring 361, and the safety plate 362 moves the shackle pin. It is separated from the insertion groove 333 of the 330 is released.

The technical details of the safety device of the self-opening shackle assembly of the present invention has been described above with the accompanying drawings, but this is only illustrative of the best embodiment of the present invention and not intended to limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations within the scope of the appended claims without departing from the scope of the technical idea of the present invention.

1 is a schematic diagram illustrating a process of connecting a steel structure to a hook of a crane using a shackle assembly,

2 and 3 are schematic front and left side views showing an open state of the shackle pin of the self-opening shackle assembly with safety device according to the first embodiment of the present invention;

4 and 5 are a front view and a plan view of the shackle body shown in Figure 2,

6 is a perspective view of the filler illustrated in FIG. 2,

7 and 8 are a perspective view and a bottom view of the hook connecting means shown in FIG.

9 and 10 are schematic front and left side views showing a state in which the shackle pin shown in FIG. 2 is closed and a tension load is applied to the hook connecting means;

11 and 12 are schematic front and left side views showing an open state of the shackle pin of the self-opening shackle assembly with safety device according to the second embodiment of the present invention;

13 and 14 are schematic front and left side views showing a state in which the shackle pin shown in FIG. 11 is closed and a tensile load is applied to the hook connecting means.

  ♠ Explanation of symbols on the main parts of the drawing ♠

200 shackle assembly 210 hook connection means

220: shackle body 230: shackle pin

240: elastic means 250: Shanghai East means

260: safety measures

Claims (5)

A shackle body having an opening therebetween so that a portion of the steel structure can be inserted and supported therein; a shackle pin capable of linear movement across the opening of the shackle body; and an external remote with the shackle pin closing the opening. A safety device of an auto-opening shackle assembly comprising automatic opening means for operating the shackle pin to automatically open the opening according to an operation signal. Hook connecting means having a structure that can be moved to and from the shackle body without being separated, and can be connected to a hook of a crane; It is fixed to one side of the shackle body to be slidably movable in the vertical direction, the upper end portion is coupled to one side of the hook connecting means is moved to the upper or lower direction when a load is applied to the hook connecting means and the load is removed And a safety means which is inserted into a groove formed at an end portion of the shackle pin or released from the end of the shackle pin. The method according to claim 1, The shackle body includes a vertical through hole penetrating up and down with the opening portion, a pair of spring arrangement holes positioned around the upper and lower through holes and vertically penetrating the opening portion, and the pair of spring arrangement holes. A pair of mood bolts each sealing the upper portion, and a communication hole communicating left and right with the opening portion, The hook connecting means is a nut-shaped connecting portion having a through-hole penetrating in the left and right direction to be coupled to the hook hook portion connected to the hook of the crane and a female thread formed in a direction perpendicular to the through hole to be coupled to the shackle body; A bolt portion which is screwed to the female thread of the connector and is disposed along the upper and lower through-holes without protruding from the shackle body and protrudes to the upper end of the shackle body, and is disposed around the bolt portion in the shackle body. A filler, and a connecting member for connecting the safety means and one side of the filler to each other through the communication hole, The safety means are respectively disposed in the pair of spring arrangement holes, the upper and lower ends of the pair of springs are arranged in close contact with the filler and the mood bolt, respectively, and one side of the shackle body can be slidable in the vertical direction And a safety plate whose upper end portion is coupled to one side of the filler through the connecting member and integrally behaves and fits into or is released from the groove formed at the end portion of the shackle pin. Safety device. The method according to claim 2, And the nut-shaped connection portion further comprises a release preventing hole communicating with the female thread at the lower end of the through hole. The method according to claim 2 or 3, The shackle pin has a locking groove formed around the one end portion thereof, The safety plate has the same size as or slightly larger than the shackle pin, and when the load is applied to the hook connecting means is fitted in the locking groove of the shackle pin is provided with a locking hole which serves as a safety device Safety of the assembly. The method according to claim 1, The shackle body has a vertical through hole penetrating up and down with the opening, The hook connecting means is connected to the hook of the crane, the hook hook portion is formed in the cam shape of the lower end, the through hole penetrates in the left and right direction to be coupled to the hook hook portion in the vertical direction with the through hole to be coupled to the shackle body A bolt portion having a nut-shaped connection portion having a female thread formed thereon, and a screw thread fastened to the female thread of the nut-shaped connection portion and arranged along the upper and lower through holes without escaping from the shackle body, and protruding to an upper end of the shackle body; And a plate positioned at a lower end of the nut type connection part and in close contact with the hook hanger part. The safety means is fixed to the spring and the circumference of the bolt portion between the plate and the shackle body, and slidably movable in the vertical direction on one side of the shackle body and the upper end is coupled to one side of the plate and the plate Safety device of the automatic opening type shackle assembly, characterized in that it comprises a safety plate that is inserted into or separated from the insertion groove formed in the end portion of the shackle pin while operating in one piece.
KR1020070075651A 2007-07-27 2007-07-27 Safety apparatus of automated shackle assembly KR20090011746A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100974255B1 (en) * 2010-02-05 2010-08-06 (주)비상엔지니어링 semi automatic hook apparatus using pulling a heavy load
KR20130135897A (en) * 2011-01-26 2013-12-11 보벤 프로퍼티즈 게엠베하 Method and device for erecting a tower for a wind energy plant
KR101400810B1 (en) * 2012-12-06 2014-05-30 주식회사 제이엠디 Sling bar type motor sensor system automatic disjoint shackle
KR101400812B1 (en) * 2012-08-20 2014-05-30 주식회사 제이엠디 Motor sensor system automatic disjoint shackle
CN109578517A (en) * 2018-12-25 2019-04-05 中国海洋石油集团有限公司 Underwater self-locking shackle
KR102051669B1 (en) 2018-06-27 2020-01-08 유경애 Automated unlocking shackle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100974255B1 (en) * 2010-02-05 2010-08-06 (주)비상엔지니어링 semi automatic hook apparatus using pulling a heavy load
KR20130135897A (en) * 2011-01-26 2013-12-11 보벤 프로퍼티즈 게엠베하 Method and device for erecting a tower for a wind energy plant
US9534416B2 (en) 2011-01-26 2017-01-03 Wobben Properties Gmbh Method and device for erecting a tower for a wind energy plant
KR101400812B1 (en) * 2012-08-20 2014-05-30 주식회사 제이엠디 Motor sensor system automatic disjoint shackle
KR101400810B1 (en) * 2012-12-06 2014-05-30 주식회사 제이엠디 Sling bar type motor sensor system automatic disjoint shackle
KR102051669B1 (en) 2018-06-27 2020-01-08 유경애 Automated unlocking shackle
CN109578517A (en) * 2018-12-25 2019-04-05 中国海洋石油集团有限公司 Underwater self-locking shackle
CN109578517B (en) * 2018-12-25 2024-03-15 中国海洋石油集团有限公司 Underwater self-locking shackle

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