JP6758095B2 - Pipe lifting device - Google Patents

Description

The present invention relates to, for example, a pipe lifting device for lifting a scaffolding pipe used when working at a high place in a water treatment facility or the like.

Conventionally, scaffolding has been built with multiple pipes when performing construction work at high places in water treatment facilities such as water tanks and tanks. At this time, if the material loading space of the water treatment facility is small, it is necessary to lift the pipe diagonally.

For example, as shown in FIG. 18, both ends of the plurality of pipes P in the longitudinal direction are bound by the numbers 2 and 2, respectively, and one belt 3 thicker than the number 2 is attached to both ends of the plurality of pipes P in the longitudinal direction. The upper end of the belt 3 is hooked by a hanging tool 5 and lifted by a crane. A holding bag 7 is attached to the end side of the pipe P, which is downward when the pipe P is lifted, to prevent the pipe P from falling off.

Further, as a means for holding a plurality of pipes, in the following Patent Document 1, a rectangular underframe on which a long material can be mounted and can be bound, and a rectangular underframe erected only at one end in the longitudinal direction thereof. A wheel that is rotatable with respect to the longitudinal direction of the underframe is provided at one end of the underframe on the end regulation plate side, and the underframe is provided on both ends in the longitudinal direction of the underframe. Described is a lifting jig made of a long material, in which suspension wires having different lengths are connected so that the wheels can be lifted in an inclined posture located at the lower end of the inclination.

Utility Model Registration No. 2516844

However, in the lifting method in which a plurality of pipes P are bound by the number 2 as shown in FIG. 18, the plurality of pipes P are bound by the number 2, the belt 3 is wound, and a holding bag 7 for preventing falling off is attached. The work to do is complicated and time-consuming, and there is a problem in workability.

Further, even in the hanging jig of Patent Document 1, it is necessary to place a plurality of pipes on a long rectangular underframe and then bind them with a number line or the like, so that the work is complicated. There is no change in that. Furthermore, since the underframe has a long shape that extends to a predetermined length to hold the pipe, it is difficult to handle when the material loading space or work space is small in a water treatment facility or the like. ..

Therefore, an object of the present invention is to provide a pipe lifting device that can safely hold and lift a plurality of pipes with good workability and is easy to handle.

In order to achieve the above object, the present invention is a pipe lifting device for lifting a plurality of pipes, and holds an end holder that holds one end of the plurality of pipes and an intermediate portion of the plurality of pipes. The intermediate holder is provided with an intermediate holder and a connecting means for connecting the end holder and the intermediate holder. The end holder has a frame shape surrounding a plurality of pipes, and a part of the end holder is opened and closed. A frame part that can accept the pipes, a tightening means that holds a part of the frame part in a closed state, and an end plate that comes into contact with the end faces of a plurality of pipes and regulates axial movement. The intermediate holder has a frame shape that surrounds a plurality of pipes, and a frame body portion that is partially opened and closed to accept a plurality of pipes and a part of the frame body portion. It is characterized by having a tightening means for holding a closed state and a hooking portion for hooking a lifting tool for lifting.

According to the present invention, the end holder is located at one end of the pipe, and the intermediate holder is arranged so as to be far from the end holder from the position where the intermediate holder is the center of gravity of the whole. One end of the pipe is inserted and installed in the frame of the end holder, the middle part is inserted and installed in the frame of the intermediate holder, and the frame is closed by the tightening means of each holder. The end holder and the intermediate holder were connected by a connecting means, and the hanging tool was hooked on the hooking portion of the intermediate holder and pulled up, so that the end holder was tilted downward. In the state, multiple pipes can be lifted. At this time, since the end holder is connected to the intermediate holder by a connecting means and has an end plate that abuts on the end faces of a plurality of pipes to regulate the axial movement, there is a concern that the pipes may come off. Absent. In this way, a plurality of pipes can be safely held and lifted with good workability by the pair of holders. Further, since the end holder and the intermediate holder are separated, it is easy to carry, the storage space and the work space may be small, and the handleability is good.

In the pipe lifting device of the present invention, the end holder and the frame portion of the intermediate holder are a bottom plate, a top plate arranged to face the bottom plate at a predetermined interval, the bottom plate, and the bottom plate. Both side plates arranged on both sides of the top plate, shelf plates arranged in parallel between the bottom plate and the top plate to partition the inside of the frame body into a plurality of stages, the bottom plate and / or the shelf plate. It is inserted between the pipes placed on the top and has a positioning protrusion that regulates the lateral movement of the pipes, and the top plate and the shelf plate can be opened and closed, and the tightening The means preferably comprises a means for holding the top plate and the shelf plate in a closed state.

According to this aspect, the pipes are arranged on the bottom plate, the shelf plate is placed on the bottom plate, the pipes are arranged on the shelf plate, and finally the top plate is covered, and the top plate and the shelf plate are closed by the tightening means. By holding the pipes in a vertical state, the plurality of pipes can be stacked in a plurality of stages and held by the end holder and the intermediate holder in a state where the lateral movement of the pipes is restricted by the positioning protrusion.

In the pipe lifting device of the present invention, the shelf plate and / or the top plate has a holding protrusion that can be brought into contact with the radial center of the upper part of the pipe positioned by the positioning protrusion from above. It is preferable that it is provided.

According to this aspect, a plurality of pipes are held without rattling by pressing the radial center of the upper portion of the pipe placed on the bottom plate or the shelf plate with the lateral movement restricted by the positioning protrusion with the holding protrusion. can do.

In the pipe lifting device of the present invention, the shelf plate of the end holder is openable and closable by rotatably connecting one end to the side plate, and the top plate of the end holder is openable. Is openable and closable by rotatably connecting one end to the end plate, and the shelf plate of the intermediate holder has one end rotatably connected to one of the side plates. It is preferable that the top plate of the intermediate holder is openable and closable, and one end thereof is rotatably connected to the other side of the side plate so that the top plate can be opened and closed.

According to this aspect, in the end holder, since one end of the shelf plate is rotatably connected to the side plate, it can be opened and closed to the left and right, and one end of the top plate rotates to the end plate. Since it is connected as possible, it can be opened and closed back and forth. In this case, since the top plate and the end plate are connected, the end portions of the plurality of pipes can be firmly held, and the pipes can be more reliably prevented from falling off. Further, in the intermediate holder, one end of the shelf plate is rotatably connected to one side plate, and one end of the top plate is rotatably connected to the other side plate, so that the shelf plate and the top plate are rotatably connected. Can be opened and closed to the left and right respectively, improving workability and maintaining a well-balanced holding strength of the pipe.

In the pipe lifting device of the present invention, it is preferable that the connecting means has an adjusting means capable of adjusting the distance between the end holder and the intermediate holder.

According to this aspect, even when the distance between the end holder and the intermediate holder is changed according to the length of the pipe, it is possible to flexibly deal with it, and each holder holds the pipe. After that, when the connecting means is stretched without slack by the adjusting means and the hanging tool is hooked on the hooking portion of the intermediate holder and pulled up, the intermediate holder and the end holder are displaced in the axial direction. Can be suppressed.

In the pipe lifting device of the present invention, it is preferable that the connecting means is made of a chain and the adjusting means is made of a turnbuckle.

According to this aspect, since the connecting means is composed of a chain, sufficient tensile strength can be imparted, and by changing the hooking position on the hooking portion and the mounting position of the turnbuckle, the end holder and the intermediate holder can be provided. Can be adapted to the distance of. Further, by rotating the turnbuckle, it is possible to eliminate the slack and make it in a stretched state relatively easily.

In the pipe lifting device of the present invention, the tightening means includes a bolt whose one end is pivotally supported by the bottom plate or the side plate, a nut screwed to the bolt, and the bolt when the bolt is rotated. When closing the opening / closing plate, the first groove formed in the top plate, the opening / closing plate which is attached to the top plate so as to be openable and closable and overlaps with the first groove of the top plate when closed. It is preferable to have a second groove that intersects the first groove and is provided on the opening / closing plate to receive the bolt.

According to this aspect, with the top plate closed and the opening / closing plate open, the bolt is rotated and inserted into the first groove, and then the opening / closing plate is closed while inserting the bolt into the second groove. By screwing the nut to the bolt and tightening and fixing the opening / closing plate, the circumference of the bolt is surrounded by the first groove and the second groove so that it cannot be pulled out in any direction, so that the bolt can be reliably removed. Can be prevented.

According to the present invention, the end holder is connected to the intermediate holder by a connecting means, and has an end plate that abuts on the end faces of a plurality of pipes to regulate the axial movement, so that the pipe can be formed. There is no need to worry about falling out, multiple pipes can be held and lifted safely with good workability, and since the end holder and intermediate holder are separated, it is easy to carry, storage space and work. The space may be small and the handling is good.

It is a perspective view which shows one Embodiment of the pipe lifting device which concerns on this invention. It is a side view of the pipe lifting device. It is a perspective view of the end holder which constitutes the pipe lifting device, in the state which a part of the frame body part is opened. It is a top view of the same end holder. It is a front view of the same end holder. It is a rear view of the same end holder. FIG. 5 is a cross-sectional view taken along the line AA of FIG. It is a perspective view of the intermediate holder which constitutes the pipe lifting device, in the state which a part of the frame body part is opened. It is a top view of the same end holder. It is a front view of the same end holder. It is sectional drawing in the BB arrow line of FIG. The usage method of the pipe lifting device is shown, and it is a perspective view which shows the 1st use method. It is a perspective view which shows the 2nd use method of the pipe lifting device. It is a perspective view which shows the 3rd use method of the pipe lifting device. It is a perspective view which shows the 4th use method of the pipe lifting device. It is explanatory drawing which shows the state at the time of lifting a pipe by using the same pipe lifting device. Using the same pipe lifting device, a state when a pipe is lifted and installed at a predetermined position is shown, (a) is an explanatory diagram showing a first state, and (b) is an explanatory view showing a second state. c) is an explanatory diagram showing a third state. It is explanatory drawing which shows the conventional pipe lifting state.

Hereinafter, an embodiment of the pipe lifting device of the present invention will be described with reference to the drawings.

The pipe lifting device 10 of this embodiment (hereinafter, simply referred to as “lifting device 10”) is for lifting a plurality of pipes P, and as shown in FIGS. 1 and 2, the plurality of pipes P Connecting means for connecting the end holder 20 for holding one end portion, the intermediate holder 50 for holding the intermediate portion of the plurality of pipes P, the end holder 20 and the intermediate holder 50 (in this embodiment, the chain 90). ) And.

First, the end holder 20 will be described with reference to FIGS. 3 to 7. The end holder 20 has a frame shape that surrounds a plurality of pipes P, and a part of the frame body portion 21 that opens and closes to accept the plurality of pipes P and one of the frame body portions 21. It has a tightening means for holding the portion in a closed state, and an end plate 23 that abuts on the end faces of a plurality of pipes P to restrict axial movement.

As shown in FIGS. 3 and 7, the frame body portion 21 is provided on both sides of the bottom plate 24, the top plate 25 which is arranged to face the bottom plate 24 at a predetermined interval, and the bottom plate 24 and the top plate 25. It has both side plates 27 and 28 that are arranged, and a plurality of shelf plates 29 and 30 that are arranged in parallel between the bottom plate 24 and the top plate 25 and partition the inside of the frame body portion 21 into a plurality of stages.

The bottom plate 24 has a long plate shape, and one end in a width direction orthogonal to the longitudinal direction thereof (hereinafter, simply referred to as a "width direction"; the same applies to the end plate 23, the top plate 25, and the shelf plates 29, 30). From the portion, the end plate 23 is erected at a right angle to the bottom plate 24. Further, the top plate 25 has a long plate shape suitable for the bottom plate 24, and one end portion in the width direction orthogonal to the longitudinal direction can be rotated to the upper end portion of the end plate 23 via a hinge 25a. It is connected and can be opened and closed.

Further, a side plate 27 stands at a right angle from one end in the longitudinal direction of the bottom plate 24, and is connected to one end in the longitudinal direction of the end plate 23. Further, as shown in FIGS. 3 and 7, the side plate 28 stands at a right angle from the other end in the longitudinal direction of the bottom plate 24, and is connected to the other end in the longitudinal direction of the end plate 23. The side plate 27 is erected higher than the side plate 28.

Further, one end of the shelf plate 29 in the longitudinal direction is rotatably connected to the upper end of the higher side plate 27 via a hinge 29a so that the shelf plate 29 can be opened and closed. On the other hand, one end of the shelf plate 30 in the longitudinal direction is rotatably connected to the upper end of the lower side plate 28 via a hinge 30a so that the shelf plate 30 can be opened and closed. That is, in this embodiment, the shelf plates 29 and 30 are connected to the side plates 27 and 28 of the frame body portion 21 so that the left and right sides can be opened and closed alternately so that the arrangement heights are different. When both the shelf boards 29 and 30 are closed, the shelf board 29 is arranged above and the shelf board 30 is arranged below the shelf board 29 (see FIG. 7).

Further, at a position closer to the end plate 23 in the width direction of the bottom plate 24, an elongated plate-shaped end plate 23a is provided along the longitudinal direction of the bottom plate 24 (see FIG. 3). An elongated plate-shaped end plate 23a is also provided at one end of the shelf plates 29, 30 on the end plate 23 side in the width direction along the longitudinal direction of the shelf plates 29, 30 (see FIG. 7). .. In this embodiment, the end faces of the plurality of pipes P come into contact with the end plates 23a to regulate their axial movement. The axial movement of the pipe P may be restricted by the end plate 23 without providing these end plates 23a.

Further, as shown in FIGS. 3 and 7, the bottom plate 24 and the shelf plates 29 and 30 are on the upper surface side (pipe mounting surface side) and the top plate 25 on the inner surface side (opposite surface side with the pipe P). At positions separated from both ends in the longitudinal direction by the width of one pipe, partition plates 31 and 31 extending along the width direction of each plate are provided at predetermined heights.

Then, as shown in FIG. 7, the partition plates 31 and 31 of the bottom plate 24 come into contact with the lower surface of the shelf plate 29 in the closed state, and the partition plates 31 and 31 of the shelf plate 29 are in the closed state of the shelf plate 30. The partition plates 31 and 31 of the shelf plate 30 are in contact with the partition plates 31 and 31 of the top plate 25, so that the partition plates 31 and 31 of the shelf plate 30 are in contact with each other at both ends in the longitudinal direction of the frame body portion 21 in three upper and lower stages. The pipes P are held, and a plurality of pipes P are held side by side in three upper and lower stages by the shelves 29 and 30 in the central portion excluding both ends in the longitudinal direction of the frame body portion 21. ..

Further, the bottom plate 24 and the shelf plates 29 and 30 are provided with a positioning protrusion 32 that is inserted between the pipes P placed on the plates and regulates the lateral movement of the pipe P. .. The "lateral movement" of the pipe P means a movement in a direction orthogonal to the axial direction of the pipe P.

In this embodiment, as shown in FIGS. 3 and 7, the bottom plate 24 and the shelf plates 29, 30 are arranged in pairs in the width direction between the partition plates 31, 31. Further, a plurality of sets of positioning protrusions 32, 32 are provided at intervals at which pipes P can be arranged. In this embodiment, four sets of two sets of positioning protrusions 32, 32 are arranged, and five pipes P are arranged in parallel with the partition plates 31 and 31 in the longitudinal direction of the frame body portion 21. It can be placed. The shape and number of positioning protrusions are not particularly limited.

Further, the shelf boards 29 and 30 are provided with a holding protrusion 33 which can be brought into contact with the center of the upper portion of the positioned pipe P in the radial direction by the positioning protrusions 32 and 32 from above. In this embodiment, as shown in FIGS. 3, 13 and 14, a narrow plate-shaped pressing protrusion 33 is provided on the lower surface side (opposite the pipe mounting surface) of the shelf plates 29 and 30. , A pair of shelves 29 and 30 are provided in pairs in the width direction, and a plurality of sets are projected at the center of the upper portion of the adjacent pipes P in the radial direction at intervals that allow contact from above. The presser foot may be provided on the top plate 25.

Further, from the lower surface side of the other end in the longitudinal direction of the shelf board 29, an outer plate 29b arranged above the one end side in the longitudinal direction of the shelf board 30 when the shelf board 29 is closed is vertically hung. There is. Further, from the inner surface side of both ends in the longitudinal direction of the top plate 25, outer plates 34 and 34 arranged above both ends in the longitudinal direction of the shelf plate 29 are vertically installed when the top plate 25 is closed. Has been done.

Further, one end of a long bolt-shaped bolt 35 that extends long is pivotally supported on the side plates 27 and 28. Here, as shown in FIGS. 5 to 7, one end of the bolt 35 is the outer surface of the side plates 27 and 28 on the lower end side of the frame body 21 on the opening side, and the support shaft 35a (see FIG. 7). The other end of the bolt 35 is pivotally supported by the support portion 37 and rotates so as to be close to and separated from the side plates 27 and 28. Further, a ring-shaped connecting portion 38 is projected from the opening side of the frame body portion 21 of the supporting portion 37, and one end of the chain 90 is connected to the connecting portion 38 via a clamp 92. (See Fig. 2).

Further, as shown in FIG. 3, the top plate 25 is on the other end side in the width direction opposite to the hinge 25a, and the protruding plates 40, 40 are outwardly projected from both ends in the longitudinal direction. It is projected. Each protruding plate 40 is formed with a first groove 40a notched along the longitudinal direction of the top plate 25 (see FIG. 3) so that when the bolt 35 is rotated, the other end is received. (See FIG. 15).

Further, as shown in FIGS. 3, 4 and 15, a long plate-shaped opening / closing plate 41 is operably attached to the outer surface side of the top plate 25 via a pair of hinges 41b and 41b. There is. When the opening / closing plate 41 is closed, both ends in the longitudinal direction overlap the first grooves 40a and 40a. Further, at both ends in the longitudinal direction of the opening / closing plate 41, the bolt 35 is received when the opening / closing plate 41 is closed, and is cut out along the width direction of the top plate 25 so as to intersect the first groove 40a. A second groove 41a is provided (see FIGS. 3 and 15).

Then, when holding the plurality of pipes P in the end holder 20 having the above structure, the pair of side plates 27, 28 and the top plate 25 of the frame body portion 21 are opened on the bottom plate 24. After arranging the plurality of pipes P (see FIG. 12), the shelf board 30 is closed (see FIG. 13), after arranging the plurality of pipes P on the shelf board 30, the shelf board 29 is closed (see FIG. 14). After arranging a plurality of pipes P on the shelf plate 29, the top plate 25 is closed (see FIG. 15). In this state, each bolt 35 pivotally supported by the side plates 27 and 28 is rotated, the other end is inserted into the first groove 40a, the opening / closing plate 41 is closed, and the bolt is bolted to the second groove 41a. By inserting the other end of the 35 (see FIG. 15) and screwing the nut 43 to the other end of each bolt 35, the opening / closing plate 41 is tightened and fixed, and as shown in FIG. 7, the frame body The top plate 25 and the shelf plates 29 and 30 of the portion 21 are held in a closed state, and a plurality of pipes P are held in a state of being stacked in a plurality of stages.

As described above, in this embodiment, the bolt 35, the nut 43, the first groove 40a, and the second groove 41a are in a state where a part of the frame body portion 21 in the present invention is closed. It serves as a "tightening means" to hold. The nuts 43, 43 screwed to the other ends of the pair of bolts 35 have annular portions, and hooks 45, 45 connected by wires 46 are hooked on these annular portions. The nuts 43 and 43 are connected to each other to prevent the nuts 43 from falling off (see FIG. 4).

Next, the intermediate holder 50 will be described with reference to FIGS. 8 to 11. The intermediate holder 50 has a frame shape that surrounds the plurality of pipes P, and a part of the frame body portion 51 that opens and closes to accept the plurality of pipes P and a part of the frame body portion 21 are closed. It has a tightening means for holding the hooked state, and a hooking portion 80 for hooking the lifting tool 5 for lifting.

As shown in FIGS. 8 and 11, the frame body 51 is provided on both sides of the bottom plate 54, the top plate 55 arranged to face the bottom plate 54 at a predetermined interval, and the bottom plate 54 and the top plate 55. It has both side plates 57 and 58 to be arranged, and a plurality of shelf plates 59 and 60 arranged in parallel between the bottom plate 54 and the top plate 55 to partition the inside of the frame body portion 51 into a plurality of stages.

The bottom plate 54 has a long plate shape, the side plate 57 stands at a right angle from one end in the longitudinal direction of the bottom plate 54, and the side plate 58 stands at a right angle from the other end in the longitudinal direction of the bottom plate 54. (See FIGS. 8 and 11). The side plate 57 has a rectangular plate shape having a predetermined height, and the side plate 58 has a width direction orthogonal to the longitudinal direction of the bottom plate 54 (hereinafter, simply referred to as “width direction”. The bottom plate 54, the top plate 55, and the shelf plate). (The same applies to 59 and 60), the upper end portions 58a and 58b having different heights are formed in a plate shape (the upper end portion 58a is higher than the upper end portion 58b) (see FIG. 10).

The top plate 55 has a long plate shape suitable for the bottom plate 54, and one end in the longitudinal direction thereof is rotatably connected to the upper end of the side plate 57 via a hinge 55a so as to be openable and closable. There is. Further, one end of the shelf plate 59 in the longitudinal direction is rotatably connected to the higher upper end portion 58a of the side plate 58 via a hinge 59a so that the shelf plate 59 can be opened and closed. On the other hand, one end of the shelf plate 60 in the longitudinal direction is rotatably connected to the lower upper end portion 58b of the side plate 58 via a hinge 60a so that the shelf plate 60 can be opened and closed. That is, in this embodiment, a pair of shelf boards 59 and 60 having different arrangement heights are connected to one side plate 58 of the frame body portion 51 so as to be openable and closable, and the top plate 55 is opened and closed to the other side plate 57. It is designed to be connected as much as possible.

Further, as shown in FIGS. 8 and 11, the bottom plate 54, the upper surface side (pipe mounting surface side) and lower surface side of the shelf plate 59, the upper surface side of the shelf plate 60, and the inner surface side of the top plate 55 (with the pipe P). At positions where the width of one pipe is widened from both ends in the longitudinal direction, partition plates 61, 61 extending along the width direction of each plate are provided at predetermined heights. ..

Then, the partition plates 61, 61 of the bottom plate 54 come into contact with the partition plates 61, 61 on the lower surface side of the shelf plate 59 in the closed state and the lower surface of the shelf plate 60 in the closed state, and the partition plate 55 of the top plate 55. When the plates 61 and 61 come into contact with the partition plates 61 and 61 on the upper surface side of the shelf plate 59 and the partition plates 61 and 61 of the shelf plate 60 (see FIGS. 8 and 11), the length of the frame body portion 51 is long. Pipes P are held in three upper and lower stages at each of both ends in the direction, and a plurality of pipes P are arranged side by side by shelves 59 and 60 in the central portion excluding both ends in the longitudinal direction of the frame body 51. It is designed to be held in three stages.

Further, the bottom plate 54 and the shelf plates 59 and 60 are provided with a positioning protrusion 62 that is inserted between the pipes P placed on the plates and regulates the lateral movement of the pipe P. .. In this embodiment, as shown in FIGS. 8, 13 and 14, the bottom plate 54 and the shelf plates 59 and 60 are formed in pairs between the partition plates 61 and 61 in the width direction. A plurality of sets of the arranged positioning protrusions 62, 62 are provided at intervals at which the pipes P can be arranged. In this embodiment, four sets of two sets of positioning protrusions 62, 62 are arranged, and five pipes P are arranged in parallel in the longitudinal direction of the frame body portion 21 with the partition plates 61, 61. It can be placed. The shape and number of positioning protrusions are not particularly limited.

Further, the shelf boards 59 and 60 are provided with a holding protrusion 63 which can be brought into contact with the center of the upper portion of the positioned pipe P in the radial direction by the positioning protrusions 62 and 62 from above. In this embodiment, as shown in FIGS. 8 and 11, on the lower surface side (opposite side of the pipe mounting surface) of the shelf plates 59 and 60, a narrow plate-shaped pressing protrusion 63 is provided on the shelf plate. A pair of pipes P are provided in the width direction of 59 and 60, and a plurality of sets are projected at the center of the upper part of the adjacent pipes P in the radial direction with an interval that allows contact from above. The presser foot may be provided on the top plate 55.

Further, from the inner surface side of the other end of the top plate 55 in the longitudinal direction, a stepped shape is formed so as to match the stepped upper ends 58a and 58b of the side plate 58 when the top plate 55 is closed. The outer plate 64 is vertically installed (see FIGS. 8 and 10).

Further, one end of a long bolt-shaped bolt 65 that extends long is pivotally supported on the side plate 58. Here, as shown in FIGS. 10 and 11, one end of the bolt 65 is the outer surface of the side plate 58 on the lower end side in the width direction thereof, and the support portion 67 is provided via the support shaft 65a (see FIG. 11). The other end of the bolt 65 rotates so as to be close to and separated from the side plate 58.

Further, as shown in FIGS. 8 and 9, a ring-shaped connecting portion 68 is provided so as to project from the outer surface of the side plates 57 and 58 on the lower end side and one end side in the width direction thereof. As shown in FIG. 2, one end of a well-known turnbuckle 94 is connected to the connecting portion 68 via a clamp 92. The total length of the turnbuckle 94 can be adjusted by rotating it. Then, the other end of the chain 90 whose one end is connected to the end holder 20 is connected to the other end of the turnbuckle 94 via the clamp 92.

Therefore, the end holder 20 and the intermediate holder 50 are connected via the chain 90, and the length of the end portion of the turnbuckle 94 is appropriately adjusted to hold the end holder 20 and the intermediate holder 20 in the middle. The distance from the tool 50 can be adjusted. That is, the chain 90 serves as the "connecting means" in the present invention for connecting the end holder 20 and the intermediate holder 50, and the turnbuckle 94 adjusts the distance between the end holder 20 and the intermediate holder 50. It is a possible "adjustment means" in the present invention. The connecting means may be, for example, a wire, a rope, or the like, and the adjusting means is not limited to the turnbuckle 94.

Further, as shown in FIG. 8, a projecting plate 70 is projected outward from the other end side of the top plate 25 in the longitudinal direction on the side opposite to the hinge 25a. The protruding plate 70 is formed with a first groove 70a notched along the longitudinal direction of the top plate 55 (see FIG. 8) so that when the bolt 65 is rotated, the other end is received. (See FIG. 15).

Further, as shown in FIGS. 9 and 15, an opening / closing plate 71 having an elongated strip shape can be opened / closed via a hinge 71b on the outer surface side of the top plate 55 and the other end side in the longitudinal direction thereof. It is installed. When the opening / closing plate 71 is closed, it overlaps the first groove 70a. Further, at one end of the opening / closing plate 71 in the longitudinal direction, the bolt 65 is received when the opening / closing plate 71 is closed, and is cut out along the width direction of the top plate 55 so as to intersect the first groove 70a. A second groove 71a is provided (see FIG. 15). As shown in FIGS. 9 and 15, an annular portion 72 is fixed to one end in the longitudinal direction (hinge 55a side) on the outer surface side of the top plate 55.

Then, when the plurality of pipes P are held in the intermediate holder 50 having the above structure, the pair of shelves 59, 60 and the top plate 55 of the frame body 51 are opened on the bottom plate 54. After arranging the plurality of pipes P (see FIG. 12), the shelf board 60 is closed (see FIG. 13), after arranging the plurality of pipes P on the shelf board 60, the shelf board 59 is closed (see FIG. 14). After arranging a plurality of pipes P on the shelf plate 59, the top plate 55 is closed (see FIG. 15). In this state, the bolt 65 pivotally supported by the side plate 58 is rotated, the other end is inserted into the first groove 70a, the opening / closing plate 71 is closed, and the other end of the bolt 65 is inserted into the second groove 71a. Is inserted (see FIG. 15), and the nut 73 is screwed to the other end of each bolt 65 to tighten and fix the opening / closing plate 71, and as shown in FIG. 11, the top plate of the frame body 51 The 55 and the shelf boards 59 and 60 are held in a closed state, and a plurality of pipes P are held in a state of being stacked in a plurality of stages.

As described above, in this embodiment, the bolt 65, the nut 73 having the annular portion, the first groove 70a, and the second groove 71a form a part of the frame portion 51 in the present invention. It acts as a "tightening means" to keep it closed. A hook 74 or a clamp 75 connected by a wire 76 is hooked on the annular portion of the nut 73 and the annular portion 72 to prevent the nut 73 from falling off. The nut 73 is also connected to the support portion 67 via the wire 77 (see FIG. 10).

Further, as shown in FIGS. 8, 10 and 11, an annular pull is formed on the outer surface of the side plate 57 at a position on the side plate 57 at the base end side in the erection direction and near one end in the width direction. A hooking portion 80 is provided, and a similar hooking portion 80 is provided on the outer surface of the side plate 58 at a position facing the hooking portion 80 provided on the side plate 57. Then, as shown in FIGS. 15 and 16, both ends of the wire 1 are hooked on the hooking portions 80 and 80, respectively, and the hanging tool 5 is hooked on the wire 1 to be an intermediate holder. It is possible to lift 50.

Next, a method of using the lifting device 10 having the above configuration and its action and effect will be described.

First, as shown in FIG. 1, the top plate 25, the shelf plate 29, and the shelf plate 30 are opened from the frame body portion 21 of the end holder 20, and the top plate 25, the shelf plate 29, and the shelf plate 30 are opened from the frame body portion 51 of the intermediate holder 50. The board 55, the shelf board 59, and the shelf board 60 are opened. Further, as shown in FIG. 2, the connecting portion 38 of the end holder 20 and the connecting portion 68 of the intermediate holder 50 are connected to each other by a chain 90 via a clamp 92. The connecting portion 38 of the end holder 20 and the connecting portion 68 of the intermediate holder 50 are connected to each other by a chain 90 via a clamp 92 after holding a plurality of pipes P by the holders 20 and 50. You may let me.

In the above state, one end of the plurality of pipes P is arranged laterally on the bottom plate 24 of the end holder 20, and the intermediate portion of the plurality of pipes P is laterally arranged on the bottom plate 54 of the intermediate holder 50. Arranged in each direction (see FIG. 12), the shelf board 30 of the end holder 20 and the shelf board 60 of the intermediate holder 50 are closed (see FIG. 13). After that, a plurality of pipes P are arranged laterally on the shelf plate 30 of the end holder 20 and on the shelf plate 60 of the intermediate holder 50, respectively, and the shelf plate 29 of the end holder 20 and the intermediate holder 50 are arranged. The shelves 59 of the above are closed (see FIG. 14). After that, a plurality of pipes P are arranged laterally on the shelf plate 29 of the end holder 20 and on the shelf plate 59 of the intermediate holder 50, respectively, and the top plate 25 and the intermediate holder of the end holder 20 are arranged. Each of the top plates 55 of 50 is closed (see FIG. 15).

Next, as shown in FIG. 15, with the opening / closing plate 41 opened from the top plate 25 of the end holder 20, each bolt 35 is rotated, and the other end is each first groove of the top plate 25. After inserting into 40a, the opening / closing plate 41 is closed, the other end of the bolt 35 is inserted into each second groove 41a, and then the nut 43 is screwed into the other end of each bolt 35 to screw the opening / closing plate 41. Tighten and fix. Further, with the opening / closing plate 71 opened from the top plate 55 of the intermediate holder 50, the bolt 65 is rotated, the end portion thereof is inserted into the first groove 70a of the top plate 55, and then the opening / closing plate 71 is closed. Then, the other end of the bolt 65 is inserted into the second groove 71a, and then the nut 73 is screwed into the other end of the bolt 65 to tighten and fix the opening / closing plate 71.

At this time, in this embodiment, the top plates 25 and 55 of the holders 20 and 50 are closed, the opening and closing plates 41 and 71 are opened, and the bolts 35 and 65 are rotated to obtain the first position. Insert into the 1 groove 40a, 70a, then close the opening / closing plates 41, 71 while inserting the bolts 35, 65 into the second grooves 41a, 71a, and screw the nuts 43, 73 into the bolts 35, 65. By tightening and fixing the opening / closing plates 41 and 71, the circumferences of the bolts 35 and 65 are surrounded by the first grooves 40a and 70a and the second grooves 41a and 71a so that they cannot be pulled out in any direction. It is possible to reliably prevent the bolts 35 and 65 from coming off.

Then, as described above, in the state where the opening / closing plates 41 and 71 of the holders 20 and 50 are tightened and fixed, as shown in FIGS. 7 and 11, the frame body portion 21 of the end holder 20 The top plate 25 and the shelf plates 29 and 30 are held in a closed state, and the top plate 55 and the shelf plates 59 and 60 of the frame body portion 51 of the intermediate holder 50 are held in a closed state. Pipes P can be held in a state of being stacked in a plurality of stages.

In this embodiment, one pipe P is held at each stage of the end holder 20 and the intermediate holder 50 via a partition plate 31 at both ends in the longitudinal direction, and five pipes P are held between them. It is possible to hold 21 pipes P in total of 3 stages, 7 pipes each. The number of pipes P held in each stage may be 6 or less. However, it is preferable that the pipes P are held in three upper and lower stages at least at both ends of the end holder 20 and the intermediate holder 50 in the longitudinal direction.

Further, in this embodiment, pipes P are arranged on the bottom plates 24 and 54 of the holders 20 and 50, and a plurality of shelf plates 29, 30, 59 and 60 are placed on the pipes P and pipes are placed on the shelf plates. Ps are arranged, and finally the top plates 25 and 55 are covered, and the top plates 25 and 55 are covered by tightening means (bolts 35 and 65, nuts 43 and 73, first grooves 40a and 70a, second grooves 41a and 71a). By holding the shelves 29, 30, 59, and 60 in a closed state, a plurality of pipes P are stacked in a plurality of stages, and a plurality of positioning protrusions 32 provided on the holders 20 and 50 are provided. , 62 allows the holders 20 and 50 to hold the pipe P in a state where the lateral movement of the pipe P is restricted (see FIGS. 7 and 11).

Further, in this embodiment, as shown in FIGS. 7 and 11, the positioning protrusions 32, are formed on the shelf plates 29, 30, 59, 60 and the top plates 24, 54 of the holders 20, 50. Pressered protrusions 33 and 63, which are positioned by 62 and can be brought into contact with each other from above, are provided at the center of the upper portion of the pipe P in the radial direction. Therefore, the upper part of the pipe P is placed on the bottom plates 24, 54 and the shelf plates 29, 30, 59, 60 of the holders 20, 50 in a state where the lateral movement is restricted by the positioning protrusions 32, 62. By pressing the radial center of the pipes by the pressing protrusions 33 and 63, the plurality of pipes P can be held without rattling.

Further, in the case of this embodiment, in the end holder 20, one end of the shelf plates 29 and 30 is rotatably connected to the side plates 27 and 28, so that the end holder 20 can be opened and closed to the left and right. Since one end of the plate 25 is rotatably connected to the end plate, it can be opened and closed back and forth (see FIG. 3). In this case, since the top plate 25 and the end plate 23 are connected, the ends of the plurality of pipes P can be firmly held, and the pipes P can be more reliably prevented from falling off. Further, in the intermediate holder 50, one end of the shelf plates 59 and 60 is rotatably connected to one side plate 58, and one end of the top plate 55 is rotatably connected to the other side plate 57. Therefore, the shelves 59 and 60 and the top plate 55 can be opened and closed to the left and right (see FIG. 8), improving the workability of the pipe P holding work and maintaining the holding strength of the pipe P in a well-balanced manner. be able to.

Then, as described above, after holding the plurality of pipes P by the end holder 20 and the intermediate holder 50, both ends of the wire 1 are pulled to the hooking portions 80 and 80 of the intermediate holder 50, respectively. Along with hanging the wire 1, the wire 1 is hooked on a hanging tool 5 such as a crane (see FIG. 16) to be lifted. Then, the intermediate holder 50 is lifted and lifted in a state of being tilted so that one end side of the pipe P held by the end holder 20 faces downward (see FIG. 17A). Then, after the other end of the pipe P has passed a predetermined length from the carry-in space 8a of the work place 8, the operator applies a force to the other end side of the pipe P (see FIG. 17B), and the pipe P (See FIG. 17 (c)), and in this state, the hanger 5 is lowered and the pipe P is temporarily placed in the work place 8. After that, the nuts 43 and 73 of the holders 20 and 50 are loosened from the ends of the bolts 35 and 65, and the bolts 35 and 65 are pulled out from the first grooves 40a and 70a and the second grooves 41a and 71a to remove the bolts 35 and 65 from the top plate. By opening the opening / closing plates 41 and 71 from 25 and 55 and opening the top plates 25 and 55, the pipe P can be taken out from each of the holders 20 and 50. After that, the pipe P can be taken out by opening the shelves 29, 30, 59, 60 of each of the holders 20 and 50 as appropriate.

As described above, in the lifting device 10, the end holder 20 is located at one end of the pipe P, and the intermediate holder 50 is the overall center of gravity (the center of gravity of the entire lifting device 10 including the pipe P). One end of a plurality of pipes P is inserted into the frame body 51 of the end holder 20 by arranging the pipes P so as to be separated from the end holder 20, and the intermediate portion of the pipes P is held in the middle. It is inserted and installed in the frame body 51 of the tool 50, the frame bodies 21 and 51 are held in a closed state by the tightening means of the respective holders 20 and 50, and the end holder 20 and the intermediate holder 50 are connected. By connecting by means (chain 90) and pulling up the hanger 5 by hooking the hanger 5 on the hook 80 of the intermediate holder 50 via the wire 1, the end holder 20 is tilted downward. In this state, a plurality of pipes P can be lifted.

At this time, the end holder 20 is connected to the intermediate holder 50 by a connecting means, and is in contact with the end faces of the plurality of pipes P to regulate the axial movement (in this embodiment, the plurality of pipes). Since P has end plates 23a) provided at each stage of the frame body portion 21, there is no concern that the pipe P will come off. Further, the plurality of pipes P can be smoothly held by simply inserting and arranging the pipes P in the frame bodies 21 and 51 of the holders 20 and 50 and closing the frame bodies 21 and 51. Can be done. As described above, in the lifting device 10, a plurality of pipes P can be safely held and lifted by the pair of holders 20 and 50 with good workability. Further, since the lifting device 10 is composed of a pair of separated holders including the end holder 20 and the intermediate holder 50, each of them can be easily carried by a predetermined transport trolley or the like, and a storage space. Also, the work space may be small, and it is easy to handle.

Further, in this embodiment, the connecting means (chain 90 in this embodiment) is an adjusting means (turnbuckle 94 in this embodiment) capable of adjusting the distance between the end holder 20 and the intermediate holder 50. Therefore, even if the distance between the end holder 20 and the intermediate holder 50 is changed according to the length of the pipe P, it can be flexibly dealt with, and the respective holders 20, After the pipe P is held by the 50, the connecting means is stretched without slack by the adjusting means, and when the hanging tool 5 is hooked on the hooking portions 80 and 80 of the intermediate holding tool 50 and pulled up, the end It is possible to prevent the portion holder 20 and the intermediate holder 50 from being displaced in the axial direction.

Further, in this embodiment, since the connecting means is composed of the chain 90, sufficient tensile strength can be imparted, and the position where the chain 90 is hooked on the hooking portion 80 of the intermediate holder 50 and the turn which is the adjusting means. By changing the mounting position of the buckle 94, the distance between the end holder 20 and the intermediate holder 50 can be adjusted. Further, by rotating the turnbuckle 94, it is relatively easy to eliminate the slack of the chain 90 and bring it into a stretched state.

The present invention is not limited to the above-described embodiments, and various modified embodiments are possible within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention. ..

1 Wire 3 Belt 5 Hanging tool 7 Holding bag 8 Work place 8a Carry-in space 10 Pipe lifting device (lifting device)
20 End holder 21 Frame body 23, 23a End plate 24 Bottom plate 25 Top plate 25a Hinge 27, 28 Side plate 29, 30 Shelf plate 29a Hinge 29b Outer plate 30a Hinge 31 Partition plate 32 Positioning protrusion
33 Pressing protrusions 34, 34 Outer plate 35 Bolt 35a Support shaft 37 Supporting part 38 Connecting part 40 Protruding plate 40a First groove 41 Opening and closing plate 41a Second groove 41b Hinge 43 Nut 45 Hook 46 Wire 50 Intermediate holder 51 Frame body 54 Bottom plate 55 Top plate 55a Hinge 57, 58 Side plate 58a, 58b Upper end 59, 60 Shelf plate 59a, 60a Hinge 61 Partition plate 62 Positioning protrusion 63 Pressing protrusion 64 Outer plate 65 Bolt 65a Support shaft 67 Support part 68 Connecting part 70 Protruding plate 70a 1st groove 71 Open / close plate 71a 2nd groove 71b Hinge 72 Ring part 73 Nut 74 Hook 75 Clamp 76 Wire 80 Hook part 90 Chain 92 Clamp 94 Turn buckle P pipe

Claims (6)

A pipe lifting device for lifting multiple pipes.
An end holder that holds one end of multiple pipes,
An intermediate holder that holds the middle part of multiple pipes,
It is provided with a connecting means for connecting the end holder and the intermediate holder.
The end holder has a frame shape that surrounds a plurality of pipes, and a frame body portion that is partially opened and closed so that a plurality of pipes can be accepted and a part of the frame body portion are closed. It has a tightening means for holding the pipe and an end plate that abuts on the end faces of a plurality of pipes to regulate the axial movement.
The intermediate holder has a frame shape that surrounds a plurality of pipes, and a part of the frame body that opens and closes to accept a plurality of pipes and a part of the frame body are closed. a fastening means for holding, for hanging pull the sling for lifting, and possess a pulling hook,
The end holder and the frame portion of the intermediate holder are arranged on a bottom plate, a top plate arranged so as to face each other at a predetermined distance from the bottom plate, and both sides of the bottom plate and the top plate. Between both side plates, a shelf plate arranged in parallel between the bottom plate and the top plate and partitioning the inside of the frame body into a plurality of stages, and a pipe placed on the bottom plate and / or the shelf plate. It has a positioning protrusion that regulates the lateral movement of the pipe, and the top plate and the shelf plate can be opened and closed, and the tightening means is the top plate and the shelf. pipe lifting device, characterized in Rukoto such from those held in the closed state and the plate. Wherein the shelves and / or the top plate, according to claim 1, wherein the pressing protrusion is contactable from above the radial center of the top of the pipe that is positioned by the positioning projection is provided Pipe lifting device. The shelf plate of the end holder is openable and closable by rotatably connecting one end to the side plate, and the top plate of the end holder has one end of the end plate. It is rotatably connected to and can be opened and closed.
The shelf plate of the intermediate holder is openable and closable by rotatably connecting one end to one of the side plates, and the top plate of the intermediate holder has one end of the side plate. The pipe lifting device according to claim 1 or 2, which is rotatably connected to the other side so as to be openable and closable. The pipe suspending device according to any one of claims 1 to 3 , wherein the connecting means has an adjusting means capable of adjusting the distance between the end holder and the intermediate holder. The pipe lifting device according to claim 4 , wherein the connecting means comprises a chain, and the adjusting means comprises a turnbuckle. A pipe lifting device for lifting multiple pipes.
An end holder that holds one end of multiple pipes,
An intermediate holder that holds the middle part of multiple pipes,
It is provided with a connecting means for connecting the end holder and the intermediate holder.
The end holder has a frame shape that surrounds a plurality of pipes, and a frame body portion that is partially opened and closed so that a plurality of pipes can be accepted and a part of the frame body portion are closed. It has a tightening means for holding the pipe and an end plate that abuts on the end faces of a plurality of pipes to regulate the axial movement.
The intermediate holder has a frame shape that surrounds a plurality of pipes, and a part of the frame body that opens and closes to accept a plurality of pipes and a part of the frame body are closed. a fastening means for holding, for hanging pull the sling for lifting, and possess a pulling hook,
The tightening means is formed on a bolt whose one end is pivotally supported on the bottom plate or the side plate, a nut screwed onto the bolt, and a top plate that receives the bolt when the bolt is rotated. The first groove, which is attached to the top plate so as to be openable and closable, and which overlaps the first groove of the top plate when closed, and the bolt which receives the bolt when the opening and closing plate is closed. pipe lifting device which is characterized that you have a second groove provided in the closing plate to intersect the groove.