KR200415067Y1 - Vaccum Suction Device for Tunnel Concrete Block Segment - Google Patents

Abstract

The present invention relates to a vacuum demolder for demoulding concrete block segments that are continuously assembled to an inner wall of a tunnel to be built underground from a mold. In particular, the tunnel segment can be demolished safely from a mold without damage and a safety accident of an operator. It is an object of the present invention to provide a vacuum demolding machine for tunnel segment that can prevent.

The vacuum demolder for the tunnel segment of the present invention having the above object has an upper frame coupled to a ceiling crane, a hollow lower frame connected to the upper frame to serve as a vacuum tank, and an adsorption pad fixing frame coupled to the lower frame. And a pair of first and second segment adsorption pads coupled to both sides of the adsorption pad fixing frame through a bridge to adsorb a relatively large segment, a vacuum pump fixed to the upper end of the lower frame, and connected to the vacuum pump. It includes a vacuum pipe and a vacuum hose connected to the first and second segment suction pads through the vacuum pipe, respectively, so that the tunnel segment can be safely removed from the mold without damage, and at the same time, the workability can be improved. Characterized in that it can prevent the safety accident of the worker.

Tunnel Segment, Vacuum Demolder, Suction Pad, Ceiling Crane, Vacuum Pipe, Vacuum Pump

Description

Vacuum Suction Device for Tunnel Segment {Vaccum Suction Device for Tunnel Concrete Block Segment}

1 is a front view showing a vacuum demolding machine for a tunnel segment of the present invention

Figure 2 is a side view showing a vacuum demolding machine for tunnel segments of the present invention

Figure 3 is a front view showing the installation state of the vacuum pump and the vacuum pipe in the vacuum demolding machine for tunnel segments of the present invention

Figure 4 is a front view showing the installation state of the segment adsorption pad in the vacuum demolding machine for tunnel segments of the present invention

5 is a front view showing an operating state of the first and second segment suction pad in the vacuum demolder for tunnel segment of the present invention;

Figure 6 is a front view showing the operating state of the third and fourth segment suction pad in the vacuum demolding machine for tunnel segments of the present invention

<Description of the symbols for the main parts of the drawings>

1a: large segment 1b: small segment

10: overhead crane 20: upper frame

30: connection frame 40: lower frame

42: Shackle Connection 43: Shackle

44: sling belt 45: flow preventing rod

52: space adjusting hole 50: suction pad fixing frame

53: spring for preventing flow 55: bridge

57: center bridge 57a: slot ball

58: connection bridge 60a: first segment suction pad

60b: second segment adsorption pad 70a: third segment adsorption pad

70b: fourth segment suction pad 80: vacuum pump

90: vacuum piping 100: vacuum hose

102: on-off valve 120: warning lights

The present invention relates to a vacuum demolder for demolding a concrete block segment that is continuously assembled to an inner wall of a tunnel to be built underground from a mold. More specifically, the tunnel segment can be safely removed from a mold without damage to an operator. It relates to a vacuum demolding machine for tunnel segments that can prevent safety accidents.

In recent years, underground tunnel construction such as subway, electric power, communication, and sewerage has been frequently used to continuously assemble the inner wall of the tunnel into several segments.

The segment is composed of a concrete block, in order to maintain a certain strength required in the underground tunnel during manufacturing, and after the concrete is put into the segment mold to vibrate the mold to improve the injection density of the concrete, and then after curing It is demolded from the mold and carried.

As a device for demolding and transporting the segment from the mold as described above, conventionally, a ceiling crane was used.

Brief description of the demolding and conveying operation of the segment by the conventional overhead crane is as follows.

The bolt is coupled to the nut-shaped hole formed on the side of the segment, and the demolding jig such as a connecting belt is fixed to the bolt, and the hook of the crane is connected to the demolding jig. Then, the segment was demolded from the mold by the operation of the crane, and then the segment was transferred and transported.

When demolishing a segment by the conventional overhead crane, if the center of gravity of the segment does not coincide with the hook of the crane, the segment is demoulded in an inclined state to one side, and thus the weight of the segment to the inclined bolt There was a problem that the bolt can be removed by being added. Therefore, there was a problem that the segment can fall from the crane, there was always a risk of safety accidents of the workers.

In addition, when the segment is inclined to one side and demolded as described above, there is a problem that the segment hits the mold and is broken.

The present invention has been made to improve the problems of the prior art as described above, the object of the present invention is to provide a vacuum demolding machine for tunnel segments that can be safely removed from the mold without damaging the tunnel segment.

In addition, the present invention has another object to provide a vacuum demolding machine for the tunnel segment that can prevent the safety accident of the operator by configuring a double safety device that can prevent the separation of the tunnel segment.

As a means for achieving the above object, the vacuum demolder for the tunnel segment of the present invention, the upper frame coupled to the overhead crane, the hollow lower frame connected to the upper frame to serve as a vacuum tank, and coupled to the lower frame A suction pad fixing frame, a pair of first and second segment suction pads coupled to both sides of the suction pad fixing frame to adsorb relatively large segments, and a vacuum pump fixed to an upper end of the lower frame; It includes a vacuum pipe connected to the vacuum pump and a vacuum hose connected to the first and second segment suction pads through the vacuum pipe, respectively, so that the tunnel segment can be safely removed from the mold without damage and simultaneously operated. There is a characteristic that can improve the sex.

Preferably, in the above configuration, a pair of third and fourth segment adsorption pads for adsorbing relatively small segments is further coupled to the center portion of the adsorption pad fixing frame through a bridge, and the third and fourth segment adsorption pads A vacuum hose connected to the vacuum pipe is connected.

Preferably, in the above configuration, the vacuum hose is characterized in that each opening and closing valve is provided.

Preferably, in the above configuration, the suction pad fixing frame is characterized in that a plurality of gap adjusting holes are formed to adjust the interval of the segment suction pad to fit the size and curvature of the segment.

Preferably, in the above configuration, the segment adsorption pad and the bridge is characterized in that the flow preventing spring is further connected.

Preferably, in the above configuration, the upper end of the upper frame, characterized in that the warning lamp which is electrically connected to the power supply of the vacuum pump is operated when the power supply of the vacuum pump is turned off.

Preferably, in the above configuration, the shackle connecting piece is integrally formed in the lower frame, and the shackle connecting piece is connected to the shackle to which the sling belt is fixed to prevent the falling of the segment adsorbed to the segment suction pad. It is characterized by preventing the departure of the tunnel segment.

Preferably, in the above configuration, between the lower frame and the adsorption pad fixing frame is characterized in that the flow-resistant bar is further assembled.

Preferably, in the above configuration, the third and fourth segment adsorption pads are coupled to the bridge to enable vertical flow.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings.

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

1 is a front view showing a vacuum demolding machine for a tunnel segment of the present invention, Figure 2 is a side view showing a vacuum demolding machine for a tunnel segment of the present invention, Figure 3 is a vacuum pump and vacuum pipe in the vacuum demolding machine for a tunnel segment of the present invention 4 is a front view showing an installation state of the segment suction pad in the vacuum demolder for tunnel segment of the present invention.

As shown in the drawings, the vacuum demolder for the tunnel segment of the present invention includes an upper frame 20 coupled to the overhead crane 10, and a lower frame connected to the upper frame 20 through a connecting frame 30. 40, the suction pad fixing frame 50 coupled to the lower end of the lower frame 40, and the first to fourth segment suction pads 60a, 60b, 70a coupled to the suction pad fixing frame 50. 70b), a vacuum pump 80 fixed to the upper end of the lower frame 40, a vacuum pipe 90 connected to the vacuum pump 80, and the first through the vacuum pipe 90 To fourth segment suction pads 60a, 60b, 70a, and 70b, respectively.

Hereinafter, the configuration and coupling relationship will be described in more detail.

The upper frame 20 is formed in the form of a beam, the coupling piece 22 for coupling the hook 12 of the overhead crane 10 is formed integrally on both ends.

" 형상의 빔 형태로 형성된 연결 프레임(30)이 용접이나 볼트 등의 체결부재에 의하여 고정된다.The lower end of the upper frame 20 in the direction orthogonal to the upper frame 20 "

Connection frame 30 formed in the form of a beam is fixed by a fastening member such as welding or bolt.

The lower end of the connecting frame 30 is fixed to the hollow lower frame 40 to serve as a vacuum tank by a fastening member such as welding or bolt.

A suction pad fixing frame 50 is coupled to a lower end of the lower frame 40 by a fastening member (not shown), and a flow preventing rod 45 is disposed between the lower frame 40 and the suction pad fixing frame 50. (See Figure 2) is further combined to be disassembled.

Both ends of the suction pad fixing frame 50 are coupled to the bridge 55 through fastening members 51, respectively, and the first and second segments are sucked through the fastening members 56 to the ends of the bridge 55. Pads 60a and 60b are coupled respectively.

In the above structure, the suction pad fixing frame 50 is formed with a plurality of gap adjusting holes 52 through which the fastening member 51 penetrates, so that the distance between the two bridges 55 is appropriately adjusted according to the size and curvature of the segment. Can be combined.

Further, the spring 53 is further coupled to the first and second segment adsorption pads 60a and 60b and the bridge 55 so that the first and second segment adsorption pads 60a and 60b are connected to the bridge ( 55) to prevent flow.

The center bridge 57 is coupled to the center of the suction pad fixing frame 50 by welding or fastening members, and the “┏┓” type connecting bridge 58 is coupled to the center bridge 57 to allow vertical flow. Third and fourth segment adsorption pads 70a and 70b are coupled to the connection bridge 58, respectively.

The configuration of the "┏┓" type connection bridge 58 coupled to the center bridge 57 to enable the vertical flow is made as follows.

A slot hole 57a is formed in the center bridge 57, and the connection bridge 58 is coupled to the center bridge 57 through a bolt passing through the slot hole 57a, and a nut is fastened to the bolt. This prevents the bolt from coming off. Therefore, as the bolt is able to flow up and down in the slot hole 57a of the center bridge 57, the up and down flow of the connecting bridge 58 coupled to the bolt becomes possible. On the other hand, one side of the lower frame 40 is inserted into the slot hole (57a) to prevent the flow of the bolt by the slot hole insertion rod 41 to prevent the vertical flow of the connecting bridge 58 (Fig. 1 Is shown). The function of the slot hole insertion rod 41 will be described in detail in the following description of the operation relationship.

In the coupling structure, the first and second segment suction pads 60a and 60b of both sides are paired, and the third and fourth segment suction pads 70a and 70b of the center are paired. The second segment suction pads 60a and 60b are for lifting a large sized segment, and the third and fourth segment suction pads 70a and 70b are for lifting a small sized segment.

The pair of first and second segment adsorption pads 60a and 60b and the pair of third and fourth segment adsorption pads 70a and 70b are different in size but have the same structure.

That is, the segment adsorption pad is composed of a steel body having the same curvature as the curvature of the segment, and a rubber pad attached to the lower end of the body of steel.

Meanwhile, a vacuum pump 80 electrically connected to an operation switch (not shown) is fixedly installed at an upper end of the lower frame 40, and a vacuum pipe 90 is connected to the vacuum pump 80, and the vacuum Between the pump 80 and the vacuum pipe 90, a vacuum pressure control switch 82, a vacuum gauge 84, a vacuum filter 86 and two vacuum valves 88 are respectively installed.

The vacuum pressure control switch 82 is installed on the upper portion of the lower frame 40 which is a vacuum tank to perform the function of adjusting the minimum vacuum pressure value and the maximum vacuum pressure value in the lower frame 40, the vacuum gauge ( 84 is installed on the upper portion of the lower frame 40 to determine the vacuum pressure state and the vacuum pressure in the lower frame 40, the vacuum filter 86 is present in the lower frame 40 This function is to filter and remove foreign substances such as dust.

In addition, the two vacuum valves 88 serve to adjust the adsorption and desorption of the first to fourth segment suction pads 60a, 60b, 70a, and 70b, respectively.

That is, the vacuum valve 88 is an electric valve connected to the vacuum pipe 90 to manipulate the operation of the first to fourth segment suction pads 60a, 60b, 70a, and 70b, and unexpected sudden power failure. In contrast, the vacuum valve 88 is configured to always open in the event of a power failure to consider the safety.

The vacuum pump 80, the vacuum pressure control switch 82 and the vacuum pipe 90, and the vacuum gauge 84, the vacuum filter 86, the vacuum valve 88 is a conventional device, so the detailed configuration Omit.

The vacuum pipe 90 is fixedly installed on the side of the lower frame 40, the vacuum pipe 90 is coupled to a plurality of vacuum hoses 100 are each provided with an on-off valve 102, the vacuum hose 100 ) Is connected to the first to fourth segment suction pads 60a, 60b, 70a, 70b, respectively.

On one side of the upper end of the upper frame 20, a warning lamp 120 is fixedly installed, which is electrically connected to the power supply of the vacuum pump 80 and operated when the power supply of the vacuum pump 80 is turned off. This is to prevent a safety accident by notifying the worker when the unscheduled power failure occurs during the operation of the vacuum pump 80 to avoid.

And, as shown in Figure 2, the lower end of both sides of the lower frame 40, the shackle connecting piece 42 is formed integrally. In addition, although not shown in the drawing, the same shackle connecting piece may be formed at the lower end of the center portion of the lower frame 40.

The shackle connection piece 42 is cut off from the power supply of the vacuum pump 80 which is in operation due to an unexpected sudden power failure, and the vacuum of the first to fourth segment suction pads 60a, 60b, 70a, 70b is prevented. When not formed, as a safety device for preventing the falling of the segments adsorbed on the first to fourth segment suction pads 60a, 60b, 70a, 70b, the shackle belt 44 is fixed to the sling belt 44 ) Is connected.

Hereinafter, the operation relationship for the vacuum demolding machine for the tunnel segment of the present invention having the above-described configuration and coupling relationship will be described with reference to the following drawings.

FIG. 5 is a front view illustrating an operating state of the first and second segment adsorption pads in the tunnel segment vacuum demolder according to the present invention, and FIG. 6 is a third and fourth segment adsorption pads in the vacuum segment demolder according to the present invention. It is a front view showing the operation state of.

In order to demold and transport segments (1a, 1b) having different curing sizes in the mold of the concrete block segment (not shown), the vacuum demolding machine for tunnel segments of the present invention is used.

Hereinafter, the segment is divided into a large 1a and a small 1b.

The operation relationship will be described in more detail as follows.

As shown in FIG. 5, the vacuum demolder of the present invention coupled to the hook 12 of the overhead crane 10 is moved to the mold (not shown) side of the concrete block segment through the overhead crane 10. Thereafter, the vacuum demolder of the present invention is lowered through the overhead crane 10 to contact the first and second segment suction pads 60a and 60b with the surface of the large segment 1a in the mold.

Subsequently, the on / off valves 102 of the vacuum hoses 100 connected to the first and second segment suction pads 60a and 60b are opened. At this time, the on / off valves of the vacuum hoses connected to the center third and fourth segment suction pads 70a and 70b are left closed.

In the above state, the operation switch (not shown) is turned ON to operate the vacuum pump 80.

Accordingly, the first and second segment suction pads 60a and 60b are vacuumed through the vacuum hose 100 in which the vacuum pipe 90 and the valve 102 are open, so that the large segment 1a is sucked. do.

At this time, the third and fourth segment adsorption pads 70a and 70b have a closed state of the on / off valves of the vacuum hoses connected to the third and fourth segment adsorption pads 70a and 70b. Will not be. Therefore, the third and fourth segment suction pads 70a and 70b naturally rise along the slot hole 57a.

Subsequently, the sling belt 44 of the shackle 43 connected to the shackle connecting piece 42 of the lower frame 40 shown in FIG. 2 is in a state of being adsorbed to the first and second segment suction pads 60a and 60b. It hangs on the large segment 1a. This is to prepare for sudden power outages.

In the above state, the overhead crane 10 is lifted and the large segment 1a is demolded from the mold and then transferred.

On the other hand, as shown in FIG. 6, when demolding the small segment 1b, the vacuum demolder of the present invention is lowered through the overhead crane 10 to insert the slot hole provided on one side of the lower frame 40. The rod 41 is inserted into the slot hole 57a (shown in FIG. 5) so that the bolt is positioned at the bottom to prevent its up and down flow. Accordingly, the connection bridge 58 is positioned below the slot hole 57a, and the third and fourth segment adsorption pads 70a and 70b coupled to the connection bridge 58 adsorb the first and second segments. It is located below the pad (60a, 60b).

In the above state, the third and fourth segment suction pads 70a and 70b are brought into contact with the surface of the small segment 1b in the mold.

Subsequently, the on / off valves 102 of the vacuum hoses 100 connected to the third and fourth segment suction pads 70a and 70b are opened. At this time, the on / off valves of the vacuum hoses connected to the first and second segment suction pads 60a and 60b on both sides are left closed.

In the above state, the operation switch (not shown) is turned ON to operate the vacuum pump 80.

Accordingly, the third and fourth segment adsorption pads 70a and 70b are vacuumed through the vacuum hose 100 having the vacuum pipe 90 and the on-off valve 102 open, thereby adsorbing the small segment 1b. do.

At this time, the first and second segment adsorption pads 60a and 60b do not hold vacuum as the on / off valves of the vacuum hoses connected to each other are closed.

As in the demolding of the large segment 1a, the sling belt of the shackle connected to the unshown shackle connecting piece of the lower frame 40 is adsorbed to the first and second segment suction pads 60a and 60b. It can hang on the small segment 1b which is in the closed state.

Lifting the ceiling crane 10 in the above state is to demold the small segment (1b) from the mold and then transported.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the tunnel segment vacuum demolder of the present invention can safely demold the tunnel segment from the mold without damage, and at the same time, improve workability, and prevent the tunnel segment from the vacuum demolder to prevent the operator from detaching the tunnel segment. Safety accidents can be prevented.

Claims (7)

An upper frame coupled to the overhead crane; A hollow lower frame connected to the upper frame to serve as a vacuum tank; A suction pad fixing frame coupled to the lower frame; A pair of first and second segment adsorption pads coupled to both sides of the adsorption pad fixing frame via bridges to adsorb relatively large segments; A vacuum pump fixedly installed at an upper end of the lower frame; A vacuum pipe connected to the vacuum pump; A vacuum hose connected to the first and second segment suction pads through the vacuum pipe, respectively; Vacuum demolder for tunnel segment, characterized in that configured to include. The method of claim 1, wherein a pair of third and fourth segment adsorption pads for adsorbing relatively small segments are further coupled through a bridge to a central portion of the adsorption pad fixing frame, and the third and fourth segment adsorption pads are connected to the third and fourth segment adsorption pads. A vacuum demolding machine for tunnel segment, characterized in that a vacuum hose connected to the vacuum pipe is connected. The vacuum demolder of claim 1, wherein the suction pad fixing frame has a gap adjusting hole formed therein to adjust a gap between the first and second segment suction pads to match the size and curvature of the segment. The vacuum demolder of claim 1 or 2, wherein the vacuum hose is provided with an on / off valve, respectively. The shackle connecting piece is integrally formed on the lower frame, and the shackle connecting piece is fixed to the shackle belt for preventing the falling of the segment adsorbed to the segment suction pad. Vacuum demolder for tunnel segment The vacuum demolder of claim 1 or 2, further comprising: a disassembly-disassembleable flow preventing rod between the lower frame and the suction pad fixing frame. 3. The vacuum demolder of claim 2, wherein the third and fourth segment suction pads are coupled to the bridge to allow vertical flow.

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