JP2007022789A - Suspension tool and vertical pipe construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suspension tool and a vertical pipe construction method for connecting pipes from an upper part to a lower part by lifting the pipes one by one from the lowest story to the uppermost part and fixing them at that location. <P>SOLUTION: This suspension tool is provided with a connection device 11 for connecting with a traction means arranged in an upper part, a hook means 13 locked in a bottom part of a pipe, a main body shaft 50 passing through the inside of the pipe member, and a run-out preventing means 12 for holding at least an upper end part of the pipe member coaxially with the main body shaft. The run-out preventing means is preferably provided with an outline forming substantially a conical shape or a pyramid shape in the upper end part of the pipe member. The procedures for lifting the first pipe member using this suspension tool and fixing it at the uppermost part of a vertical pipe, lifting the second pipe member and joining it with a lower end part of the first pipe, and connecting an upper end part of the second pipe member with the lower end part of the first pipe member are repeated to construct the vertical pipe in a building sleeve. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hanging jig and a soot pipe construction method, and in particular, a construction method for a soot duct and a soot pipe constructed in a building sleeve (hereinafter collectively referred to as “soot pipe”) and the like. It relates to a jig used in the above.

  Conventionally, in order to construct a soot pipe in a building sleeve, a method has been adopted in which the lowest pipe is installed, and the pipe is connected to the top in order and fixed by welding or a housing joint. In this method, it is necessary to raise the pipes one by one to the upper floor in advance, and to position and fix the pipes on the fixed pipes. This is time consuming and labor intensive and takes a very long time. Met.

  In addition, by connecting two pipes that are connected up and down on the lowermost floor with a rotating joint member, hooking a winch to the upper end of the upper pipe and lifting it from above, the lower side A pipe construction method and jig for joining the upper and lower pipes in this state are disclosed (for example, Patent Document 1). In this construction method, the pipes are increased one by one to the tail by the above work and gradually lifted, and finally the pipes are continuously reached to the rooftop floor.

JP 2003-56742 A

  However, in the construction method described in Patent Document 1, the upper pipe (first pipe) is lifted to a state where it is slightly lifted from the floor surface on the lowermost floor, and the upper and lower pipes are connected by joint members (jigs) in that state. Although a process is required, accurate positioning of the piping at the time of this connection is required, which involves skill and difficulty. To connect the upper and lower pipes, it is necessary to attach a jig to each of the upper and lower pipes, and then connect the two. After joining the upper and lower pipes, the jig is attached in the reverse procedure. It had to be removed and this work was cumbersome and time consuming. Further, in this construction method, the load applied to the winch increases as it goes to the upper floor, and in the configuration in which the upper end portion of the uppermost pipe is lifted with a hook, there is a risk that the connected pipe will drop and the connected pipe will fall.

  The present invention has been made in view of such points, and a construction method that allows pipes to be connected from top to bottom by lifting pipes one by one from the lowest floor to the top and fixing at that point. The purpose is to provide. In this construction method, if the uppermost pipe is securely fixed, the pipe will not drop during the construction, and there is no fear of increasing the weight on the winch because the pipe is raised one by one. The construction period can be drastically shortened, and so can pipes can be constructed in a short time.

  In order to achieve this object, a hanging jig according to the present invention is a hanging jig used for lifting a pipe material, and includes a connector (11) for connecting to a pulling means disposed above, and a tube bottom portion. And hook means (13) for engaging with the pipe member, and a main body shaft (50) passing through the pipe.

  It is effective that the hanging jig of the present invention includes a steadying means (12) for holding at least an upper end portion of the pipe material coaxially with the main body shaft.

  It is effective that the steadying means has a substantially conical or pyramidal contour at the upper end of the pipe.

  The steadying means (12) includes a slide member (31) having a cylindrical main body through which the main body shaft passes, and a plurality of beam members (33) having the same length and being rotatably connected to the slide member. It is effective that the holding member (32) provided at the end portion of each beam member is connected to the upper end portion of the tube material, and that the beam member is longer than the radius of the tube material.

  It is effective that the steadying means (12) further includes a fixing member (34) for fixing the position of the slide member (31) on the main body shaft (50).

  In the hanging jig of the present invention, it is effective that one or more wing members (41) projecting outward of the hanging jig are provided in the vicinity of the lower end portion of the beam member (33).

  In addition, it is effective that the hook means (13) includes two or more hooks (14a, 15a) that are locked at positions that equally divide the tube bottom of the tube material.

  The construction method of the soot pipe according to the present invention is a method in which two or more pipe materials are connected in series to construct the soot pipe in the building sleeve, and the first pipe material is lifted and fixed at the top of the above-mentioned soot pipe A step of lifting, joining a second pipe member to the lower end part of the first pipe, connecting the upper end part of the second pipe member to the lower end part of the first pipe member, and if necessary, And repeating the step of lifting the pipe material and connecting it to the lower end of the previous pipe material.

  In this dredging construction method, the step of lifting the pipe material is to lower one of the above-mentioned suspension jigs and pass it through the pipe material, to lock the hook means at the lower end of the pipe material to the bottom of the pipe, and tow from above It is effective.

  It is effective that the step of connecting the pipe members is a housing type joint or welding.

  In this dredging construction method, when the lifting of the pipe material is started, the pipe bottom of the pipe material is placed on a carriage and gradually lifted so that the pipe material stands upright by its own weight.

  Further, it is effective to lift the pipe using a hoisting device capable of hoisting about 40-60 m.

  The pipe hanging jig according to the present invention is configured to pass the hanging jig through the pipe, and hook the hook means provided at the lower end of the pipe to the pipe bottom so that the pipe can be lifted. The upper end portion can be easily accessed, and it is possible to lift and connect to the lower end portion of the pipe member fixed on the upper end portion. Therefore, it is possible to construct the pipe from the uppermost pipe member downward by lifting the pipe members one by one from the lower floor, and the construction period can be greatly shortened.

  In addition, by providing a steadying means that holds the upper end of the pipe to be lifted coaxially with the body axis of the lifting jig, the upper end of the pipe is prevented from being caught by the edge of the building sleeve and stuck. can do. If the pipe material is lifted without being caught by the building sleeve, it is not necessary to arrange workers on each floor to correct the core of the pipe material, so that the construction cost and the construction period can be shortened.

  Further, this steadying means gives a conical or pyramid-shaped contour to the upper end of the pipe, so that even if the lifting shaft is offset from the center of the building sleeve, the steadying means is at the edge of the building sleeve. By contacting, the core position of the pipe material is corrected, and the pipe material can be lifted without being caught by the building sleeve. This eliminates the need to arrange workers on each floor and correct the core of the pipe material, thereby reducing the construction cost and the construction period.

  In this case, the steadying means is composed of a slide member that can slide on the main body axis, a plurality of beam members that can rotate radially from the slide member, and a holder provided at the lower end of the beam member, By providing a wing portion projecting outward near the lower end portion of the beam member, it is easy to attach and detach, and the tube material can be lifted while reliably dodging the building sleeve. In addition, a plurality of hooks for supporting the tube bottom portion of the pipe material are provided, and the tube bottom portion is locked at a substantially equal position, so that the tube material can be lifted straight by aligning the suspension jig and the core of the tube material. .

  On the other hand, in the pipe construction method according to the present invention, the chain end of the hoisting machine is lowered in the building sleeve, the first pipe is lifted and fixed to the uppermost part, the chain of the hoisting machine is lowered as it is, and the next pipe is dropped. Hoist pipes are constructed by lifting and connecting to the lower end of the pipe material fixed above. Compared to the conventional example, which is constructed from the lower pipe, it is not necessary to lift the pipe to the upper floor and then hang it down with a hoist to fix the position. Since it can be fixed, the construction period can be drastically shortened. In this case, if the pipe material is lifted by using the above-described hanging jig, for example, it can be completed in about 40-50 minutes to construct a vertical pipe having a height of about 50-60 m, which has conventionally taken about one month. it can.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a diagram showing an overall configuration of a hanging jig 10 according to the present invention. This hanging jig 10 is used to hang a pipe from a higher floor of a building with a winch. The hanging jig 10 includes a shackle 11 for connecting to the wire chain 100 from the hoisting machine, a steadying means 12 attached under the shackle 11, and a hook means 13 provided at the lower end of the hanging jig 10. And a main body shaft 50 passing through the pipe 20. As shown in the figure, the suspension jig 10 is passed through the pipe 20, the hook means 13 at the lower end is hooked on the lower end of the pipe 20, and the steadying means 12 is attached to the upper end of the pipe 20. The pipe 20 is configured to be stably lifted on the same axis as the hanging jig 10.

  FIG. 2 is an enlarged view showing details of the hook means 13 provided at the lower end portion of the hanging jig 10. As shown in the figure, the hook means 13 has two hooks 14a and 15a connected to a shackle 16 provided at the lower end of the jig body wire by metal wires 14b and 15b, respectively. The receiving portions of the hooks 14a and 15a are formed so as to match the bottom contour of the pipe 20 to be lifted. Further, as shown in FIG. 2, when exposed to the pipe 20, the part exposed to the outside of the pipe 20 has a tapered shape, and this exposed part is formed as thin as possible and close to the surface of the pipe 20. . This shape prevents the hooks 14a and 15a from being caught on the edge of the building sleeve when the pipe 20 is lifted and stuck. The dimensions and thickness of the hooks 14a and 15a and the wires 14b and 15b are determined according to the thickness and weight of the pipe wall of the pipe 20 to be lifted. As described above, the hook means 13 is connected to the jig main body by the shackle 16, and can be replaced with one having an appropriate size and strength according to the thickness and weight of the pipe. In the present embodiment, the hook means 13 is configured by using two hooks 14a and 15a. However, the number of hooks is not limited, and for example, three or more hooks may be used.

  FIG. 3 is an enlarged view showing a configuration of the steadying means 12 for stably holding the upper end portion of the pipe 20 to be lifted. As shown in FIG. 3, the steadying means 12 is capable of rotating to a slide member 31 slidably attached to the main body shaft 50 of the jig 10 and to a position that makes 90 degrees in the cross section of the slide member 31. A beam member 33 that is attached to each of the four members and can be expanded and is attached to the upper end portion of the pipe 20 by the U-shaped metal fitting 32 at the lower end portion thereof, and the lower end portion of the beam member 33 is attached to the pipe 20 And a fixing member 34 for pressing and fixing the slide member 31 from above. This steadying means 12 has the beam member 33 attached to the upper end portion of the pipe 20 and the slide member 31 is sufficiently pushed down and fixed by the fixing member 34 to fix the pipe 20 to the hook means 13 and the steadying means 12 described above. It has a role to secure between. A reinforcing bar material is used for the portion of the main body shaft 50 that becomes the core material of the steady rest 12. The lengths of the beam members 33 are equal and larger than the radius of the pipe 20 to be applied.

  FIG. 4 shows the configuration of the slide member 31 constituting the steadying means 12. 4A is an elevation view of the slide member 31, and FIG. 4B is a front view. As shown in FIG. 4A, the slide member 31 is formed in a cylindrical shape, and a cylindrical main body 35 through which the main body shaft 50 of the jig 10 passes, and positions at 90 degrees in the cross section of the cylindrical main body 35. And four triangular plates 36 provided on the surface. As shown in FIG. 4 (b), each of the four triangular plates 36 is composed of a plate having a shape in which a vertical triangle with a vertical side facing inward is cut out, and the beam is formed at the outer lower end portion thereof. A hole 37 for connecting the member 33 is provided. Further, a part of the cylindrical main body 35 is notched, and is configured to be detachable from the main body shaft 50 of the jig 10 through the notch 38.

  The structure of the beam member 33 which comprises the steadying means 12 is shown in FIG. FIG. 5A is an elevation view of the beam member 33, and FIG. 5B is a front view. A pair of plates 39 extending in parallel is provided at the upper end of each beam member 33, and a hole 40 is provided in a direction orthogonal to each plate 39. The beam member 33 is rotatably attached to the slide member 31 by sandwiching the triangular plate 36 of the slide member 31 between the two plates 39 and connecting the hole 40 and the hole 37 by means such as rivets. Therefore, each beam member 33 can be opened and closed like an umbrella around the body shaft 50 of the jig 10. In addition, a U-shaped bracket 32 is rotatably attached to the lower end portion of the beam member 33, and the rotation shaft 32 a of the U-shaped bracket 32 is parallel to the rotation axis (hole 40) of the beam member 33. is doing. With this configuration, as shown in FIG. 3, the beam member 33 can be expanded and directed to the upper end portion of the pipe 20, and the U-shaped fitting 32 can be fitted to the upper end edge of the pipe 20. Further, in the vicinity of the lower end of each beam member 33, two wings 41 projecting outward are provided. The wing 41 has a role of guiding the upper end of the pipe 20 so as not to be caught on the edge of the building sleeve when the pipe 20 is lifted.

  FIG. 6 shows the configuration of the fixing member 34 constituting the steadying means 12. 6A is a front view, FIG. 6B is an elevation view, and FIG. 6C is a bottom view. As shown in the figure, the fixing member 34 includes an outer member 46 formed in a substantially pyramid shape and a cylindrical body 43 that passes through the center of the fixing member 34 and passes the main body shaft 50 of the jig 10. The upper end portion of the fixing member 34 is formed to be relatively thick, and a hole 44 that penetrates the side wall of the cylindrical body 43 is provided at this portion, and a bolt 45 is screwed into the hole 44. That is, a female screw is cut on the inner peripheral surface of the hole 44, and the male screw of the bolt 45 is screwed into this female screw. The fixing member 34 can be fixed by sliding on the body axis of the jig 10 and fastening the bolt 45 at an arbitrary position. As shown in the figure, the inner contour of the outer member 46 is a pyramid shape divided into four parts, and the triangular plate 36 of the slide member 31 described above is accommodated in each of the four corners. The beam member 33 of the steadying means 12 is attached to the upper end portion of the pipe 20, the fixing member 34 is lowered from above, is put on the slide member 31, and the bolt 45 is tightened at that position. 50 and stable on the same axis.

  In the steadying means 12, the size and material of each member can be determined as appropriate in consideration of the size and weight of the pipe 20 to be lifted. Further, as shown in FIG. 3, the chain 100 suspending the jig body 10 and the slide member 31 are connected by a detachable fall prevention wire 60 so that the steadying means 12 does not fall during the work. . The length and strength of the main body shaft 50 that connects the steadying means 12 and the hook means 13 at the lower end are also selected according to the length and weight of the pipe 20 to be lifted. In the above embodiment, the four beam members 33 of the steady rest member 12 are configured, but this may be three or less or five or more. In the case of three, the triangular plate of the sliding member is three and the fixing member is a triangular pyramid shape. In the case of five, the triangular plate of the sliding member is five and the fixing member is a pentagonal pyramid shape. Obviously, when the number of beam members 33 is six or more, the number of triangular plates 36 and the shape of the fixing member 34 are changed correspondingly.

  The soot tube construction method of the present invention using the suspension jig 10 thus configured will be described below. In the method of the present invention, the main feature is that a plurality of pipes are prepared on the basement or the lowermost floor of the building for constructing the pipe, and the pipes are sequentially lifted one by one and connected from the top floor to the bottom. .

  First, a method for attaching the hanging jig 10 to the pipe 20 will be described. This hanging jig 10 hangs down in a building sleeve from a hoisting machine installed on a roof floor or an appropriate upper floor of a building subject to dredging work, and raises a pipe 20 prepared on the basement or lowermost floor. Used to lift up to. FIG. 7 shows an attachment process of the hanging jig 10. The hanging jig 10 is lowered on the floor where the pipe 20 is prepared, and the hanging jig 10 is passed through the horizontally installed pipe 20 (FIG. 7A). In this case, the steadying means 12 may be previously attached to the hanging jig 10, or may be removed at this time. When it is removed, a plurality of steadying means 12 are prepared on this floor.

  Next, as shown in FIG. 7B, the hooks 14a and 15a at the free ends of the hanging jig 10 are locked to the tube bottom of the pipe 20, and the hanging jig 10 is moved to the hanging side (winding machine side). pull. In this case, when there are two engaging hooks, the hooks are attached at positions that equally divide the tube bottom, such as positions that form 180 degrees on the tube bottom.

  In a state where tension is applied to the suspension jig 10, as shown in FIG. 7C, the steadying means 12 is attached to the suspension jig 10 at the suspension side end of the piping 20, and each beam member 33 is expanded to provide piping. The U-shaped metal fitting 32 is fitted to the end edge. Finally, while pulling the suspension jig 10, the fixing member 34 is moved, placed on the tip of the slide member 31 and pressed against the pipe side, and the bolt 45 of the fixing member 34 is tightened and fixed (FIG. 7 (d)). Thus, both ends of the pipe 20 are sandwiched between the hooks 14a and 15a and the steadying means 12, and the hanging jig 10 and the pipe 20 are coaxial.

  From this state, as shown in FIG. 8, when the pipe bottom of the pipe 20 is placed on the carriage 80 and the hoisting machine is driven, the pipe 20 rises in the form of being drawn to the building sleeve 71, and finally the pipe 20 stands upright and the building It is substantially coaxial with the sleeve 71. When the chain is further wound up from this state, the pipe 20 is lifted up through the building sleeve 71. At this time, since the pipe bottom of the pipe 20 is supported by the hooks 14a and 15a provided at the lower end of the hanging jig 10, the pipe can be lifted safely and reliably as compared with the conventional example in which the upper end of the pipe 20 is lifted. Can do. In addition, since the substantially pyramid-shaped steadying member 12 is attached to the upper end of the pipe 20, the central axis of the pipe 20 is corrected closer to the center of the building sleeve even if it contacts the edge of the building sleeve. The pipe 20 can be lifted without stacking.

  FIG. 9 is an image diagram illustrating a state where the pipe 20 is lifted. As shown on the left side of FIG. 9, when the pipe 20 is coaxial with the building sleeve 71, the pipe 20 passes through the sleeve without being caught by the edge of the sleeve 71. On the other hand, as shown on the right side of FIG. 9, even when the lifting chain 100 is displaced from the center of the sleeve 71, the pyramid-shaped steadying member 12 of the lifting jig 10 contacts the edge of the sleeve 71. The central axis of the pipe 20 is corrected closer to the center of the sleeve, and the pipe 20 can be lifted smoothly. Conventionally, since there was no such hanging jig, it was necessary to arrange a person on each floor so that the upper end of the piping would not be caught by the edge of the sleeve. This eliminates the need to place a worker on each floor, thereby improving work costs and work speed. Further, as shown in FIGS. 3 and 5, since the wing portion 41 projects outward near the lower end portion of each beam member 33, it is ensured that the upper end portion of the pipe interferes with the edge of the building sleeve 71. Is prevented.

  FIG. 10 is a schematic diagram for explaining a method for constructing a soot tube according to the present invention. As shown in FIG. 10A, in the construction method of the present invention, a hoisting machine 70 is installed on the sleeve on the roof floor of the building so that the hanging load chain 100 is aligned with the center of the sleeve 71. The above-described suspension jig 10 is connected to the lower end portion, lowered to the lowermost floor, attached to the first pipe 20-1, and the pipe 20-1 is lifted to the uppermost floor by the hoisting machine 70. The hoisting machine 70 can be obtained by applying a load chain having a length of about 40-60 m to an electric chain block or a hoist crane. When the pipe 20-1 is lifted to a desired height, the winding is stopped and the steadying means 12 is released. Specifically, when the bolt 45 of the fixing member 34 of the steadying means 12 is loosened and the fixing member 34 and the slide member 31 are slid upward, the U-shaped fitting 32 of the beam member 33 is moved to the upper end of the pipe 20-1. And the upper part of the pipe 20-1 becomes free.

  Next, as shown in FIG. 10B, the load receiving metal 73 is attached on the roof floor to fix the pipe 20, and the load chain 100 is slightly loosened to the extent that the hook means 13 cannot be removed. After confirming that it can withstand the load, the hook means 13 is removed, and the rubber ring 74 is fitted to the lower end of the pipe 20 before the suspension jig 10 is lowered, and then the suspension jig 10 is operated again by operating the hoisting machine 70. Take down to the lowest floor. Here, the load receiving hardware 73 may have any structure as long as the pipe 20 is fixed to the rooftop and can withstand the load of a plurality of pipes connected below, and is removed when all construction is completed. Is. For example, an annular member fixed to the peripheral surface of the pipe 20 can be used as the load receiving metal 73. In this case, it is assumed that a piece for receiving the load receiving metal 73 is welded to the pipe 20-1. Further, the rubber ring 74 is one of the components of the housing joint 75 described below, and is a member for connecting the pipes by tightening the housing joints 75 from above toward the joints between the pipes.

  The steady rest 12 may be removed before the suspension jig 10 is lowered, or may be lowered while attached to the suspension jig 10. That is, when the U-shaped metal fitting 32 is released, the beam member 33 is folded like an umbrella by its own weight, so that it can be lowered through the pipe 20. When the pipe 20 is thin and cannot pass the steady-rest member 12, the steady-rest means 12 is once removed on the upper floor and the suspension jig 10 is lowered. In this case, several steady rest members 12 may be collectively lowered to the lowest floor, or may be hung on the lower end hook means 13 of the hanging jig 10 and lowered each time.

  Next, as shown in FIG. 10 (c), the hanging jig 10 is attached to the second pipe 20-2 on the lowest floor, and the winch 70 is operated to be 60-70 cm before the upper pipe 20-1. Stop and release the steady rest 12. Winding is resumed while the operator supports the upper end of the pipe 20 by hand, and the pipe 20 is gradually raised and joined to the pipe 20-1 fixed above. At this time, when the pipes come into contact with each other, the hoisting is stopped and the core and direction of the pipes are aligned by hitting a rubber hammer or the like. Thereafter, lubricating oil for the rubber ring is applied to the pipe surface, the rubber ring 74 that has been mounted is moved to the joint between the pipe 20-1 and the pipe 20-2, and the housing joint 75 is fixed from above. This housing joint 75 is obtained by joining an annular metal member divided into two around a pipe and fastening them with bolts and nuts to firmly connect the pipes, and use a commercially available strong joint type joint. Can do. The housing joint 75 has a size and strength corresponding to the outer diameter and weight of the pipe to be applied.

  Next, as shown in FIG. 7 (d), the hoisting machine 70 is slightly loosened to check the load resistance of the pipe 20-2, and then the winch 70 is loosened to disengage the hook means 13 from the pipe bottom of the pipe 20-2. Then, the next rubber ring 74 is fitted to the lower end of the pipe 20-2, the hanging jig 10 is again lowered to the lowest floor and attached to the next pipe, and the operations after FIG. 7C are repeated. In this way, it is possible to configure a soot tube formed by connecting a plurality of pipes in series in the building sleeve. In this method, it is not necessary to place a worker on the middle floor, and the work cost can be reduced by reducing the number of necessary personnel. Moreover, since the attachment / detachment of the hanging jig 10 can be performed easily and easily, the construction speed can be dramatically improved. According to this construction method, it is possible to construct a pipe with a height of about 40-50 m in about 40-50 minutes.

  Although one embodiment of the present invention has been described in detail, the present invention is not limited to the configuration described in the above embodiment, and can be realized as various other modifications. For example, the wing 41 of the beam member 33 is not an essential component and may be omitted. Further, the steadying means 12 of the hanging jig 10 is not particularly limited as long as it achieves the alignment of the hanging jig 10 and the pipe 20 and does the building sleeve when it is lifted. Can be applied. For example, in the hanging jig 10 of the above embodiment, the steadying member 12 is composed of a plurality of beam members 33, but the upper end of the pipe to be lifted is covered with a member such as a roughly conical or pyramidal cap. In addition, the suspension jig 10 and the pipe 20 may be aligned, and the edge of the building sleeve may not be caught in the lifting process. Also in this case, it is effective that the conical or pyramidal cap member can be lowered through the pipe as a structure that can be folded like an umbrella. Further, the steadying means 12 itself is not an essential component in the hanging jig 10 and may be omitted. In this case, it is necessary to arrange workers on each floor and adjust so that the pipe passes through the building sleeve well. However, a hanging jig equipped with a hook means at the tip is passed through the pipe, and the hook means is locked to the pipe bottom. By pulling it up with a winch and connecting it downward from the uppermost pipe, it is possible to construct a soot pipe in a short construction period using a simple lifting jig.

  Moreover, in the said Example, although piping was connected with the housing coupling 75, you may connect this by other means, such as welding. Moreover, the piping which comprises a soot pipe is not restricted to a cylindrical shape, A square duct etc. may be sufficient. Moreover, the construction method of the present invention is not limited to the case where the pipe is constructed from the basement to the roof floor, but can be applied to all constructions for assembling the pipe from an arbitrary floor to an upper floor. This method can be suitably used not only when building a new building, but also when constructing a pipe for an existing building. In addition, as described above, the material, dimensions, shape, strength, etc. of the members necessary for the hanging jig and construction method of the present invention are the thickness, length, weight of the pipe to be lifted and fixed, and the construction pipe to be constructed. It can be changed to an appropriate one according to the implementation conditions such as the overall length of the housing and the inner diameter of the building sleeve.

  The suspension jig according to the present invention and a dredging construction method using the same are related to a method and a jig for constructing a dredging pipe by continuously connecting a plurality of pipes to a multi-level building, and the construction industry and construction material manufacturing It can be used for work.

It is a figure which shows the whole structure of the hanging jig | tool 10 concerning this invention. It is a figure which shows the structure of the hook means 13 of the suspension jig | tool 10 lower end part. It is a figure which shows the structure of the steadying means 12 of the suspension jig 10 upper end part. It is a figure which shows the structure of the slide member 31 which comprises the steadying means 12. FIG. It is a figure which shows the structure of the beam member 33 which comprises the steadying means 12. FIG. It is a figure which shows the structure of the fixing member 34 which comprises the steadying means 12. FIG. It is a figure which shows the process of attaching the hanging jig | tool 10 to the piping 20 installed horizontally. It is a figure which shows the process of lifting the piping 20 placed horizontally. It is a figure which shows the process of lifting the piping. It is a figure explaining the soot pipe construction method of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Suspension jig | tool 11 Shackle 12 Stabilizing means 13 Hook means 14a, 15a Hooks 14b, 15b Chain wire 16 Shackle 20 Piping 31 Slide member 32 U-shaped metal fitting 33 Beam member 34 Fixing member 35 Cylindrical main body 36 Triangular plate 37 Notch 41 Wing member 43 Tubular body 45 Bolt 46 Outer member 70 Winch 71 Building sleeve 73 Load receiving bracket 74 Rubber ring 75 Housing joint 100 Suspension chain

Claims (12)

  A lifting jig used for lifting a pipe material, a connecting tool (11) for connecting to a pulling means disposed above, a hook means (13) for locking to a pipe bottom, and the inside of the pipe material A suspension jig characterized by comprising a main shaft (50) to pass through.   The suspension jig according to claim 1, further comprising a steadying means (12) for holding at least an upper end portion of the tube material coaxially with the main body shaft.   3. The hanging jig according to claim 2, wherein the steadying means has a substantially conical or pyramidal outline at an upper end portion of the pipe material.   The hanging jig according to claim 2 or 3, wherein the steadying means (12) is rotatably connected to a slide member (31) having a cylindrical main body through which the main body shaft passes. A plurality of beam members (33) having the same length, and a holder (32) provided at an end portion of each beam member and connected to an upper end portion of the tube material, and the beam member of the tube material A hanging jig characterized by being longer than the radius.   5. The suspension jig according to claim 4, wherein the steadying means (12) further comprises a fixing member (34) for fixing the position of the slide member (31) on the main body shaft (50). A hanging jig.   The suspension jig according to claim 4 or 5, wherein one or more wing members (41) projecting outward of the suspension jig are provided near a lower end portion of the beam member (33). Characteristic hanging jig.   The suspension jig according to any one of claims 1 to 6, wherein the hook means (13) includes two or more hooks (14a, 15a) that are locked at positions where the tube bottom portion of the tube material is substantially equally divided. A hanging jig characterized by comprising.   A method in which two or more pipes are connected in series to construct a soot pipe in a building sleeve, where the first pipe is lifted and fixed at the top of the soot pipe, and the second pipe is lifted. Joining the lower end of the first pipe, connecting the upper end of the second pipe to the lower end of the first pipe, and lifting the next pipe as needed to lower the lower end of the previous pipe And a step of repeating the connection to the pipe.   9. The vertical pipe construction method according to claim 8, wherein the step of lifting the pipe material lowers the suspension jig according to claim 1 through 7 and passes it through the pipe material, and the hook means at the lower end thereof is attached to the pipe bottom part. A tub tube construction method characterized by being locked and pulled from above.   10. The steel pipe construction method according to claim 8 or 9, wherein the step of connecting the second pipe materials is a housing type joint or welding.   When the pipe construction method according to any one of claims 8 to 10 further starts lifting of the pipe material, the pipe bottom is placed on a carriage and gradually lifted so that the pipe material stands upright by its own weight. The construction method of the tub tube characterized by having made it. The pipe construction method according to any one of claims 8 to 12, wherein the pipe material is lifted using a hoisting device capable of hoisting about 40-60 m.

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