JP6430567B2 - Tube fixing device - Google Patents

Description

  This invention is a pipe used when installing a plurality of pipes such as cable pipes, water pipes, electric pipes, gas pipes in parallel in a sheath pipe installed in the ground, the ground, and other places. It relates to a fixing device.

  Conventionally, when a plurality of pipes such as cable pipes, water pipes, gas pipes are installed in parallel in a sheath pipe buried in the ground, etc., a pipe fixing device is used to hold them in an appropriate position. Is used. As a tube fixing device, for example, there is one shown in Patent Document 1.

  This tubular body fixing device includes a support plate having a plate surface that intersects the tube axis direction of the sheath tube in the sheath tube, and the tubular body disposed on the support plate (hereinafter referred to as a disposed tube). A plurality of support parts constituted by through holes or the like for holding the slab are provided.

  A plurality of arranged tubes connected along the tube axis direction are held by the support plate at predetermined intervals along the tube axis direction. Since the support plate is provided with a wheel, when the wheel travels on the inner surface of the sheath tube, the arranged tube is sent to a laying place in the sheath tube. Thereafter, a sheath filler such as mortar is supplied into the sheath tube, and the arrangement tube is fixed in the sheath tube.

Japanese Patent Laid-Open No. 10-47549 (see FIG. 7 on page 7)

  In many cases, the arrangement pipe installed in the sheath pipe extends over a long distance. However, when the connection extension of the arrangement pipe during transportation is long, the number of support plates installed to support the arrangement pipe also increases. At this time, if the weight of the support plate is heavy, a large traction force and a pressing force are required to move the arrangement tube to a predetermined laying position. Therefore, the support plate is preferably as light as possible. .

  However, if the weight of the support plate is reduced by changing the material or reducing the thickness of the plate material, the rigidity of the support plate will be insufficient. If the rigidity of the support plate is insufficient, the support plate cannot withstand the weight of the arrangement pipe, and there is a risk of causing various damages such as buckling and cracking. If the support plate is broken, the arrangement tube cannot be held at an appropriate position in the sheath.

  Accordingly, an object of the present invention is to make a tube fixing device used when moving a disposition tube installed in a sheath tube to a laying place as light as possible and as rigid as possible.

  In order to solve the above-mentioned problems, the present invention is to hold the arrangement pipe in a tube body fixing device used for holding the arrangement pipe when installing a plurality of arrangement pipes in the sheath pipe. A pair of support plates provided with through-holes, a fastening member for connecting the pair of support plates, a spacing member for maintaining a predetermined gap between the pair of support plates, and for traveling in the sheath And a traveling body fixing device.

  Here, it is possible to adopt a configuration in which the fastening member is a bolt and a nut, and the spacing member is a cylindrical member through which the bolt is inserted.

  Further, a plurality of the fastening members including the bolts and the nuts are provided, a reinforcing plate addressed to one or both of the pair of support plates is provided, and a plurality of the bolts are inserted into the reinforcing plate. can do.

  In each of these aspects, a configuration in which a filler is disposed between the pair of support plates can be employed. The filler is preferably a material softer than the material of the pair of support plates.

  For example, it is possible to adopt a configuration in which the pair of support plates is a material in which a fiber reinforced plastic layer and a resin mortar layer are laminated. Moreover, the said filler can employ | adopt the structure which is urethane foam.

  Moreover, the said filler can employ | adopt the structure which is a block-shaped member or shim-shaped member inserted between the said pair of support plates.

  The present invention maintains a predetermined gap between the pair of support plates, the pair of support plates having a through-hole that holds the arrangement tube, the fastening member that couples the pair of support plates, and the pair of support plates. It was comprised with the space | interval material for driving | running | working, and the traveling apparatus for driving | running | working in a sheath pipe. For this reason, the tubular body fixing device can be made as light as possible and as rigid as possible.

(A) is the front view which shows embodiment of this invention, (b) is the longitudinal cross-sectional view Enlarged view of Fig. 1 (a) Enlarged view of the vicinity of the traveling device Enlarged view of the main part when filler is placed

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a tube fixing device 10 used when a plurality of pipes P having a smaller diameter than the sheath tube 1 are installed in parallel in a sheath tube 1 installed in the ground or the like. As the arrangement pipe P, for example, various pipe bodies such as a cable pipe, a water pipe, and a gas pipe are assumed.

The tube fixing device 10 is used for holding the arrangement tube P in an appropriate position in the sheath tube 1 and is arranged at a predetermined interval along the tube axis direction.

  The configuration of the tube fixing device 10 includes a pair of support plates 11 and 11 having plate surfaces that intersect the tube axis direction of the sheath tube 1. Each of the pair of support plates 11 and 11 includes a through hole Q that holds the arrangement pipe P. The through hole Q is provided at a position where each of the pair of support plates 11 and 11 is opposed to each other, corresponding to one arrangement pipe P.

  The through hole Q has a shape and a size that allow the arrangement pipe P to be inserted therethrough and that does not cause rattling between the inserted arrangement pipe P and the inner surface of the through hole Q. Here, since the disposing pipe P is a tubular body having a circular cross section, the through hole Q also has a circular cross section, but the shape of the through hole Q can be appropriately set according to the cross sectional shape of the disposing pipe P.

  As a material of the pair of support plates 11, 11, a material that is lightweight and strong enough to hold the arrangement pipe P is preferable. In this embodiment, the pair of support plates 11 and 11 are made of a material obtained by laminating a fiber reinforced plastic layer and a resin mortar layer. Specifically, a plate material made of a reinforced plastic composite material (FRPM / Fiberglass Reinforced Plastic Mortar) in which glass fiber reinforced plastic (FRP) and resin mortar (Resin Mortar) are combined is employed.

  In addition, as the material of the arrangement pipe P, various materials are adopted according to the use and diameter of the arrangement pipe P. In addition to the reinforced plastic composite material as described above, glass fiber reinforced plastic, etc. Resin or metal is used.

  The pair of support plates 11 and 11 are connected by a fastening member. Further, a spacing member 14 is employed as a spacer for maintaining a predetermined gap between the pair of support plates 11 connected by the fastening member.

  In this embodiment, bolts 12 and nuts 13 are employed as fastening members. Further, a cylindrical member into which the bolt 12 is inserted is adopted as the spacing member 14. In this configuration, the pair of support plates 11, 11 are stretched so as to prevent them from approaching less than a certain distance between both ends of the cylindrical member in the cylinder axis direction. In this embodiment, the spacing member 14 is a cylindrical member, but a rectangular tube member or the like may be employed.

  A plurality of fastening members composed of bolts 12 and nuts 13 are provided at various locations on the pair of support plates 11 and 11. The reinforcing plate 15 is assigned to the inner surfaces of both the pair of support plates 11 and 11 (the surface where the pair of support plates 11 and 11 face each other). The reinforcement plate 15 is provided with bolt insertion holes at a plurality of locations, and the bolts 12 of the fastening members are inserted into the plurality of bolt insertion holes, respectively. By tightening the nut 13, both ends of the spacing member 14 are stretched between the inner surfaces of the reinforcing plates 15 and 15, and the support plate 11 and the reinforcing plate 15 are fixed. The reinforcing plate 15 functions to reinforce the support plate 11.

  The material of the reinforcing plate 15 is preferably a material having higher strength than the material of the support plate 11. For example, a metal such as iron can be used as the material of the reinforcing plate 15.

  In this embodiment, the reinforcing plate 15 is formed of a long plate material in the vertical direction. For this reason, it is the structure which can be fixed to the support plate 11 with the volt | bolt 12 and the nut 13 in several places along an up-down direction.

  Below the pair of support plates 11, 11, a traveling device 20 for attaching the tubular body fixing device 10 to the sheath 1 is attached. The traveling device 20 includes wheels 23 fixed to a frame that supports the pair of support plates 11 and 11.

  The frame of this embodiment includes a horizontal frame 21 extending in the horizontal direction (direction crossing the sheath 1) along the direction of the plate surfaces of the pair of support plates 11, 11, and a vertical frame 22 extending along the tube axis direction. With. As shown in FIG. 2, the horizontal frame 21 is divided into two in the horizontal direction and bolted at the center thereof. The vertical frame 22 is joined to the horizontal frame 21 by welding so as to protrude from the horizontal frame 21 to both sides in the tube axis direction. The wheel 23 of the traveling device 20 is fixed to each of the vertical frames 22 projecting on both sides in the tube axis direction.

  The reinforcing plate 15 described above can be fixed to the support plate 11 with bolts 12 and nuts 13 along a vertical direction. For this reason, the load of the arrangement | positioning pipe | tube P can be transmitted to the reinforcement plate 15 from the support plate 11 with the volt | bolt 12 and the nut 13 of several places of an up-down direction. The load is transmitted from the reinforcing plate 15 to the frame, that is, the horizontal frame 21 and the vertical frame 22, and finally transmitted to the wheel 23. In this embodiment, the reinforcing plate 15 is fixed to the support plate 11 with three bolts 12 and nuts 13 along the vertical direction. However, the number of the portions can be appropriately increased and decreased, for example, two. Alternatively, the number can be four or more.

  In this embodiment, the reinforcing plates 15 are symmetrically arranged at both ends in the lateral direction of the pair of support plates 11 and 11. For this reason, the load is transmitted to the frame in a balanced manner in the lateral direction, and the tube fixing device 10 is in a stable state.

  When the reinforcing plate 15 is not provided, the load of the arrangement pipe P is directly transmitted from the support plate 11 to the frame. Even when the reinforcing plate 15 is provided, a part of the load of the arrangement pipe P can be transmitted from the support plate 11 to the frame.

  As a fixing structure between the reinforcing plate 15 and the frame, both can be fixed by bolts, nuts, or the like, but when both are made of metal, they can be fixed to each other by welding. Moreover, it can also be set as the structure which fixes the support plate 11 and a flame | frame with a volt | bolt, a nut, etc. by allocating a part of flame | frame to the plate surface of the support plate 11. FIG.

  You may arrange | position the filler 16 between the pair of support plates 11 and 11 as needed. An embodiment in which the filler 16 is disposed is shown in FIG.

  The filler 16 comes into contact with the outer surface of the arrangement pipe P between the support plates 11 and 11. For this reason, the holding | maintenance of the arrangement | positioning pipe | tube P with respect to the support plate 11 will be stabilized. At this time, the filler 16 is desirably a softer material than the material of the pair of support plates 11 and 11. If the filler 16 is a material softer than the material of the pair of support plates 11, 11, an effect of preventing wear and damage of the outer surface of the arrangement pipe P can be expected.

  As a raw material of the filler 16, for example, urethane foam can be employed. The urethane foam is a softer material than fiber reinforced plastic and resin mortar, which are materials constituting the support plate 11. In addition, various soft resins, rubbers, and the like can be used as the material of the filler 16. In particular, if these materials are foamed materials, it can contribute to weight reduction of the device and protection of the arrangement pipe P.

  When filling the filler 16, the gap between the pair of support plates 11, 11 is held by the spacing member 14, so that the filling operation of the filler 16 is easy. When a method of pouring and curing an uncured material as the filler 16 is employed, a mold frame that covers the outer edges of the pair of support plates 11 and 11 is arranged and surrounded by the mold frame and the pair of support plates 11 and 11. An uncured material is poured into the space, and the mold is removed after the material is cured.

  Further, as the filler 16, a block-like member or a shim-like member inserted between the pair of support plates 11, 11 may be employed. At this time, a block-like member may be prepared or a required number of shim-like members may be inserted corresponding to the gap between the pair of support plates 11 and 11.

  A method of laying the arrangement pipe P using the pipe body fixing device 10 will be described.

  When the sheath tube 1 is buried in the ground, a starting shaft is provided on one side of the sheath tube 1 in the tube axis direction, and a reaching shaft is provided on the other side in the tube axis direction. The arranged pipes P are sequentially connected along the pipe axis direction from the starting pit into the sheath pipe 1. Arrangement pipes P are simultaneously connected in a state where a plurality of arrangement pipes P are arranged in parallel. Simultaneously with the connection of the arrangement pipe P, the connected arrangement pipe P is fed into the sheath pipe 1.

  And the connected arrangement | positioning pipe | tube P is hold | maintained by the pair of support plates 11 and 11 of the pipe | tube fixing | fixed apparatus 10 with the predetermined space | interval along the pipe-axis direction. The tube fixing devices 10 and 10 adjacent to each other along the tube axis direction are connected by a connecting member such as a tie rod. When the wheel 23 travels on the inner surface of the sheath pipe 1, the arrangement pipe P is laid from the starting pit to the reaching pit. Thereafter, a sheath filler such as mortar is supplied into the sheath tube 1 through the filler supply tube R, and the arrangement tube P is fixed in the sheath tube 1.

  In addition, after connecting a predetermined number of arrangement pipes P, a method of pulling the tube fixing device 10 using a wire or winch from the arrival shaft side may be employed.

  Reference numeral 24 in FIG. 1A denotes a lifting prevention device 24 included in the tube fixing device 10. When the tube fixing device 10 is about to rise due to buoyancy when the sheath tube filler is injected into the sheath tube 1, the lift prevention device 24 is engaged with the holding rail 25 on the tube bottom. The rise is regulated.

  In this embodiment, a material obtained by laminating a fiber reinforced plastic layer and a resin mortar layer is used as a material of the pair of support plates 11, 11. However, the material is not limited to this material, and FRP using only fiber reinforced plastic. Various materials that are lightweight and have a predetermined strength, such as a plate, can be used.

  Further, in this embodiment, the bolt 12 and the nut 13 are employed as the fastening member, but a fastening member other than the bolt 12 and the nut 13 such as a pin or a rivet may be employed. Further, as the spacing member 14, a cylindrical member into which an axial fastening member such as a bolt 12 is inserted is adopted, but besides the cylindrical member, by stretching between the pair of support plates 11, 11, Various members that can maintain a gap between them can be employed. In the case of using the filler 16 made of the block-shaped member described above or the filler 16 made of a shim-shaped member, these fillers 16 can be used as the spacing material 14.

1 sheath tube 10 tube fixing device 11 support plate 12 fastening member (bolt)
13 Fastening member (nut)
14 Spacing material 15 Reinforcement plate 16 Filling material 20 Traveling device 21 Horizontal frame 22 Vertical frame 23 Wheel 24 Lift prevention device 25 Holding rail P Arrangement pipe Q Through hole R Filling material supply pipe

Claims (8)

In the tubular body fixing device used for holding the arrangement pipe (P) when installing a plurality of arrangement pipes (P) in the sheath pipe (1),
A pair of support plates (11, 11) having a through hole (Q) for holding the arrangement tube (P);
A fastening member for connecting the pair of support plates (11, 11) to each other;
A spacing member (14) for maintaining a predetermined gap between the pair of support plates (11, 11);
A traveling device (20) for traveling in the sheath pipe (1);
Bei to give a,
The tubular body fixing device, wherein the fastening member has a shaft shape, and the spacing member (14) is a tubular member through which the shaft-like fastening member is inserted . In the tubular body fixing device used for holding the arrangement pipe (P) when installing a plurality of arrangement pipes (P) in the sheath pipe (1),
A pair of support plates (11, 11) having a through hole (Q) for holding the arrangement tube (P);
A fastening member for connecting the pair of support plates (11, 11) to each other;
A spacing member (14) for maintaining a predetermined gap between the pair of support plates (11, 11);
A traveling device (20) for traveling in the sheath pipe (1);
Bei to give a,
The fastening members are bolts (12) and nuts (13),
The said space | interval material (14) is a tubular body fixing device which is a cylindrical member by which the said volt | bolt (12) is penetrated. A plurality of the fastening members comprising the bolt (12) and the nut (13);
A reinforcing plate (15) addressed to either or both of the pair of support plates (11, 11);
The tube fixing device according to claim 2, wherein the plurality of bolts (12) are inserted through the reinforcing plate (15). In the tubular body fixing device used for holding the arrangement pipe (P) when installing a plurality of arrangement pipes (P) in the sheath pipe (1),
A pair of support plates (11, 11) having a through hole (Q) for holding the arrangement tube (P);
A fastening member for connecting the pair of support plates (11, 11) to each other;
A spacing member (14) for maintaining a predetermined gap between the pair of support plates (11, 11);
A traveling device (20) for traveling in the sheath pipe (1);
Bei to give a,
A tube fixing device in which a filler (16) is disposed between the pair of support plates (11, 11). The tube fixing device according to any one of claims 1 to 3, wherein a filler (16) is disposed between the pair of support plates (11, 11). The tube fixing device according to claim 4 or 5 , wherein the filler (16) is a material softer than a material of the pair of support plates (11, 11). The pair of support plates (11, 11) is a material in which a fiber reinforced plastic layer and a resin mortar layer are laminated,
The tube fixing device according to any one of claims 4 to 6, wherein the filler (16) is urethane foam. The tubular body fixing device according to any one of claims 4 to 7, wherein the filler (16) is a block-like member or a shim-like member inserted between the pair of support plates (11, 11). .

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