JP4933881B2 - Tube transport carriage and tube laying method - Google Patents

Description

  The present invention relates to a tubular body carriage used when arranging a plurality of tubular bodies in parallel, and a tubular body laying method using the same.

  Conventionally, there is a known method of rehabilitating a sewer pipe that has deteriorated due to aging, ground deformation, etc. by inserting a new rehabilitation pipe inside it, and in that case, the rehabilitation pipe is easily transported in a narrow sewer pipe For this purpose, a tubular body carriage is used (for example, see Patent Document 1).

  The tubular body carriage of Patent Document 1 inserts a support beam into one rehabilitation pipe having a diameter slightly smaller than that of a sewage pipe to be rehabilitated, and transports the rehabilitation pipe with the ceiling surface on the support beam. It is a trolley.

On the other hand, in some cases, it is necessary to pipe a plurality of pipes having a small diameter inside one large pipe line. For example, Patent Document 2 discloses a plurality of pipes that are arranged in parallel using a pipe connection unit. An apparatus for conveying is disclosed.
JP 2001-99352 A Japanese Patent No. 3339616

  However, the apparatus of Patent Document 2 is an apparatus for performing a plurality of parallel pipes in the excavated excavation groove, and cannot be applied to a pipe rod.

  Further, the tubular body transport carriage disclosed in Patent Document 1 is an apparatus that transports a single tubular body, and cannot transport a plurality of tubular bodies arranged in parallel at the same time. Carrying the body is inefficient.

  Therefore, an object of the present invention is to provide a tubular body carriage and a tubular body laying method capable of transporting a plurality of tubular bodies even in a place where the upper part is not opened like a culvert.

  In order to achieve the above-mentioned object, the tubular body transportation carriage of the present invention includes a support portion that loads the axial direction of a plurality of tubular bodies on the elongated carriage in accordance with the longitudinal direction of the carriage. It is a trolley for transporting a tubular body, and includes an upper stage support part that can be moved up and down by an elevating mechanism, and a lower stage support part formed on an upper surface of the carriage.

  Further, the upper stage support portion is extended toward the longitudinal direction at a substantially center in the vehicle width direction of the carriage, and the lower stage support portion is provided on both sides of the upper stage support portion in the vehicle width direction, A fall prevention fence for a tubular body loaded on the lower support portion is formed on both side edges of the carriage.

  Furthermore, on the upper surface of the upper stage support part and the lower stage support part, a delivery mechanism for feeding the tubular body in the axial direction can be provided.

  Moreover, the pipe laying method of the present invention is a method of loading the pipe body on the lower stage support part and the upper stage support part of the pipe transport carriage according to any one of the above, and while the pipe bodies are running. After being moored to the carriage so as not to move, the tubular carriage is moved to a predetermined position to release the mooring, and the upper support portion is lifted to the predetermined height by the lifting mechanism, and then the pipe is lifted. It is characterized by lowering the body.

  Further, in the case where the transporting carriage has a delivery mechanism, the tubular body is loaded on the lower support section and the upper support section, and is moored to the carriage so that the tubular bodies do not move during traveling. The tube transport carriage is moved to a predetermined position to release the mooring, the pipe loaded on the lower support portion is sent to the predetermined position by the sending mechanism, and the upper support is supported by the lifting mechanism. The tubular body loaded on the upper support portion can be sent out to a predetermined position by the feeding mechanism.

  The tubular body conveying carriage of the present invention configured as described above includes an upper stage support part and a lower stage support part provided with an elevating mechanism.

  By providing a plurality of support parts in this way, it is possible to transport a plurality of pipes at the same time, and the upper support part can be moved up and down by the elevating mechanism, so that the pipes can contact the ceiling even in a narrow pipe It can be transported without making it.

  Further, by raising the upper support part by the lifting mechanism after transporting to a predetermined position, the pipes loaded on the upper support part can be lifted to a desired height and connected to the existing pipes.

  Furthermore, by providing an upper support part at the approximate center in the vehicle width direction of the carriage, and providing a lower support part with drop prevention fences on both sides of the carriage, three pipes can be transported simultaneously even in a narrow pipeline. can do.

  Then, by providing a feeding mechanism for feeding the tube body in the axial direction on the upper surfaces of the upper stage support part and the lower stage support part, it can be easily lowered from the carriage without damaging the peripheral surface of the conveyed pipe body.

  In addition, when joining the ends of the pipes transported to the ends of the existing pipes, the joining work can be easily performed while feeding the pipes by supporting them using the feeding mechanism. .

  In addition, if the tube loaded on the lower support is moored in a state where a part of the tube is in contact with the member constituting the upper support, it is difficult for the load to collapse during transportation, and when the tube is lowered. By raising the elevating mechanism, it is possible to easily lower the tubular body of the lower support portion.

  Furthermore, by raising the upper stage support part to a predetermined height and sending it out by the delivery mechanism, the end part of the pipe body that has been conveyed to the end part of the existing pipe body is joined while the pipe body is supported by the upper stage support part. Since it can be easily performed, it is excellent in workability.

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

  FIG. 1 is a perspective view showing a configuration of a tube transfer carriage 1 of the present embodiment.

  First, in terms of configuration, this tubular body carriage 1 is provided with an elongated carriage 11, an upper support portion 12 extending substantially in the center of the carriage 11 in the vehicle width direction, and both sides thereof. It is mainly comprised from the lower stage support parts 13 and 13.

  The carriage 11 is provided with wheels 11a and 11a for traveling the rails 31 and 31 under a rectangular flat base, and is connected to a driving vehicle or the like at the end in the longitudinal direction of the carriage 11. Traction ring 11b is provided.

  And the upper stage support part 12 is equipped with the support | pillars 123 and 123 standing at intervals on the upper surface of this trolley | bogie 11. As shown in FIG. The column 123 has a predetermined rigidity by a connecting beam 124 that connects the columns 123, 123, an oblique member 126 that supports the column 123 from the side, and a reinforcing member 127 that connects the oblique members 126, 126. It is configured to be.

  Further, the upper support portion 12 is provided with an elevating mechanism 122 supported by the support columns 123 and 123.

  The beam portions 121 and 121 that are lifted and lowered by the lifting mechanism 122 are extended in parallel in the longitudinal direction of the carriage 11, and a plurality of arc-shaped receiving portions are provided on the upper surface thereof at intervals in the longitudinal direction. 121a,... Are attached.

  In addition, between the beam portions 121 and 121, the ends of arms 122c and 122c having lower ends attached to the upper ends of the columns 123 and 123 are rotatably connected via an axis.

  And the lower end of the arm 122c on the front side in FIG. The rotation receiving portion 125 moves freely without resistance in the direction in which the arm 122c stands up, but rotates with a claw and a gear (not shown) so that the arm 122c does not move unless the lock (not shown) is released. The direction of movement is restricted.

  Further, the lower end of the rear arm 122c in FIG. 1 is rotatably attached to the upper end of the support post 123 via a jack 122a.

  The jack 122a is provided with a mechanism like a so-called floor jack that raises the arm 122c by hydraulic pressure that rises every time the handle 122b is pushed down.

  That is, when the handle 122b is repeatedly pushed down, the hydraulic pressure of the jack 122a rises and the arm 122c connected thereto rises, and the other arm 122c connected via the beam portions 121 and 121 also stands up. At this time, since the arm 122c on the side not connected to the jack 122a does not return in the direction of falling as described above, the beam portions 121 and 121 can be raised in a horizontal state. .

  Further, rollers 14A and 14A as a feeding mechanism are attached to the tip of the arm 122c so as to sandwich the beam portions 121 and 121 therebetween. Since these rollers 14A and 14A are fixed at an angle inclined toward the tip end side of the arm 122c, as shown in FIG. 3, when the beams 121 and 121 before being raised and the arm 122c are in a substantially parallel state, the rollers 14A and 14A 14A does not protrude above the receiving portion 121a, and when the beam portions 121 and 121 are raised to intersect with the arm 122c, the rollers 14A and 14A are positioned above the receiving portion 121a as shown in FIG. Protruding.

  As shown in FIG. 1, lower support portions 13 and 13 are provided on the upper surface of the carriage 11 on both sides in the vehicle width direction of the upper support portion 12.

  The lower stage support portion 13 uses the upper surface of the carriage 11 as a support base, and the support base is provided with a plurality of rollers 14B,... As a delivery mechanism at intervals in the longitudinal direction of the carriage 11.

  Further, the rollers 14B,... Are arranged in pairs with two rollers 14B, 14B spaced from each other in the vehicle width direction so that the tube body 4B can be stably fed out in the axial direction. The rollers 14B,... Can be accommodated inside the carriage 11 during conveyance and protruded when being unloaded.

  Further, drop prevention fences 131 are provided on both side edges of the carriage 11, that is, on the edge opposite to the upper stage support part 12 of the lower stage support part 13. The fall prevention fence 13 is composed of a support 131a,... That is obliquely erected outward from the front and rear ends of the lower support 13 and a horizontal member 131c that connects the support 131a and 131a. And mainly consists of

  Further, a hole 131b penetrating in the thickness direction is provided at the tip of the column 131a, and a mooring band for mooring the stacked tubes 4A and 4B as shown in FIG. 2 is provided in the hole 131b. Attach 15 ends.

  As shown in FIG. 2, the tubular body conveying carriage 1 configured as described above is connected to the battery car 2 by the connecting portion 21 as shown in FIG. 2 and moved to a predetermined position. When the battery car 2 is not used, an operator may push and move the tube transport carriage 1 manually.

  Moreover, as for the pipe body 4 (general name of 4A-4D) conveyed with the bogie 1 for pipe conveyance, the sewer pipe, the water supply pipe, agriculture which the receiving part was formed in one end and the insertion part was formed in the other end, for example. A fiber reinforced plastic mortar (FRPM) pipe used as a water pipe or the like.

  Next, a method for laying a tubular body according to the present embodiment will be described.

  First, the rails 31 and 31 are laid in the pipe line 3 so that the tube transport carriage 1 can travel.

  And in the state which lowered the raising / lowering mechanism 122 of the carriage 1 for transporting the tube mounted on the rails 31, 31 to the lowest position, as shown in FIG. 3, the tube 4 </ b> A is placed on the receiving portion 121 a of the upper support portion 12. Loading. Subsequently, the tubes 4B and 4B are also loaded on the lower support portions 13 and 13 on both sides.

  Further, both ends of the mooring band 15 hung on the outer periphery of the three tubes 4A, 4B, and 4B are connected to holes 131b and 131b provided in the columns 131a and 131a of the fall prevention fences 131 and 131, respectively.

  In this state, the gap between the upper surface of the pipe body 4A loaded on the upper support portion 12 and the ceiling of the pipe line 3 and the gap between the pipe bodies 4B and 4B and the inner side surface of the pipe line 3 are sufficiently open. Therefore, it can be quickly transported by the battery car 2 as shown in FIG.

  And as shown to Fig.5 (a), when the trolley 1 for pipe conveyance arrives at the edge part vicinity of the pipe bodies 4C and 4D installed previously, the mooring band 15, ... was removed and it has conveyed. The pipe bodies 4A and 4B are brought into a state where they can be lowered.

  If this tubular body conveyance carriage 1 is used, it is possible to join the existing tubular bodies 4C and 4D simultaneously with lowering the tubular bodies 4A and 4B.

  FIG. 5A is a diagram for explaining the operation of inserting the insertion portion of the tubular body 4B loaded on the lower support portion 13 into the reception portion of the tubular body 4D previously installed.

  First, one end of the drawing chain 5 is wound around and fixed to the rear of the receiving portion of the tube 4D, and the other end is fixed to the receiving portion end surface of the tube 4B. In this state, the chain block 51 attached in the middle of the drawing chain 5 is operated to feed the tubular body 4B to the tubular body 4D side.

  At this time, since the tube body 4B is supported on the rollers 14B,... Of the lower support portion 13, the tube body 4B can be easily fed in the axial direction, and the surface of the tube body 4B can be damaged by the feeding. Absent.

  Subsequently, the handle 122b of the jack 122a of the upper support 12 is operated to raise until the height of the previously installed tube 4C and the height of the tube 4A are substantially equal, as shown in FIG. 5 (b). .

  The rollers 14A,... Of the upper support portion 12 protrude upward from the upper surfaces of the receiving portions 121a,... And the tube 4A is supported from the receiving portions 121a,. Switch to 14A,.

  Then, both ends of the draw chain 5 are fixed to the tube body 4C side and the tube body 4A side, respectively, the chain block 51 is operated to pull the tube body 4A toward the tube body 4C side, and the insertion portion of the tube body 4A Is inserted into the receiving portion of the tubular body 4C and joined.

  The order in which the pipes 4A and 4B are lowered and the order in which the pipes 4A and 4B are raised by the elevating mechanism 122 are not limited to the above, and the pipes 4B and 4B are loaded on the lower support portions 13 and 13 as shown in FIG. You may raise the raising / lowering mechanism 122 in the state as it was done.

  When the tubular body transport carriage 1 is retracted and extracted from below the tubular bodies 4A and 4B joined to the previously installed tubular bodies 4C and 4D, the tubular bodies 4A and 4B are in an overhanging state. .

  Therefore, a gantry that supports the ends of the tubes 4A and 4B is installed. The configuration of the gantry of the tubes 4C and 4D previously installed is shown in FIG. 6 (FIG. 5B). ) Will be described with reference to the section BB of FIG.

  The lower-side pipe bodies 4D and 4D are placed on the pedestals 62a and 62a installed on the lower-stage girder 62 that is bridged across the rails 31 and 31 in the direction transverse to the pipe line 3. The pedestals 62a and 62a have a function of a height adjusting material, and the pipes 4D and 4D can be easily installed at an accurate height by adjusting the height.

  And the installation stand 62b and 62b are each installed in the upper surface of the pipe bodies 4D and 4D, and the upper stage girder 61 is bridged on it. Both ends of the upper stage girder 61 are hooked and supported by hanging metal fittings 61b and 61b suspended from the ribs 32 and 32 of the pipe line 3.

  A height-adjusting pedestal 61a is also installed on the upper surface of the upper girder 61, and the tubular body 4C is placed thereon, and both ends of the lifting prevention band 63 hung on the tubular body 4C are connected to the upper girder 61. To fix.

  Further, a plurality of lifting prevention tools 64,... Are installed in the gap between the upper surface of the pipe body 4C and the ceiling of the pipe line 3. The lifting prevention tools 64,... Are jigs that prevent the tubular body 4C from being lifted by the filling pressure of the air mortar filled later between the tubular body 4 and the conduit 3. Note that the lower side pipe bodies 4D and 4D are prevented from floating by the upper stage girder 61.

Next, the operation of the tubular body conveyance carriage 1 and the tubular body laying method according to the present embodiment will be described. The tubular body transportation carriage 1 according to the present embodiment configured as described above includes an elevating mechanism 122. The upper stage support part 12 and the lower stage support part 13 are provided.

  By providing the plurality of support portions 12 and 13 in this way, the plurality of tubes 4A and 4B can be conveyed at a time, and the upper support portion 12 can be moved up and down by the elevating mechanism 122. Even if it exists, it can convey, without making the pipe 4A contact a ceiling.

  Further, by raising the upper stage support portion 12 by the lifting mechanism 122 after transporting to a predetermined position, the pipe body 4A loaded on the upper stage support portion 12 is lifted to a desired height so that the existing pipe body 4C can be easily formed. Can be joined.

  Furthermore, by providing the upper stage support portion 12 at the approximate center in the vehicle width direction of the carriage 11 and providing the lower stage support portions 13 and 13 having the fall prevention fences 131 on both sides thereof, even in the narrow pipeline 3, 3. The tube bodies 4A, 4B, 4B can be transported together at the same time.

  And by providing the rollers 14A and 14B for feeding the tubular bodies 4A and 4B in the axial direction on the upper surfaces of the upper and lower support portions 12 and 13, without damaging the peripheral surfaces of the conveyed tubular bodies 4A and 4B, It can be easily taken down from the tubular body conveying carriage 1.

  Also, when joining the ends of the pipes 4A and 4B conveyed to the ends of the existing pipes 4C and 4D, the pipes 4A and 4B are supported by using the rollers 14A and 14B. The joining work can be easily performed while feeding out.

  Further, the pipes 4B and 4B loaded on the lower support portion 13 can be transported if they are moored in a state in which they are partly in contact with the slanting material 126, the reinforcing material 127, the receiving portion 121a, etc. constituting the upper support portion 12. In addition to making it difficult to collapse, the pipes 4B and 4B loaded on the lower support parts 13 and 13 can be easily lowered by lifting and lowering the lifting mechanism 122 when lowering the pipes 4B and 4B. Can do.

  Furthermore, the upper stage support part 12 is raised to a predetermined height and sent out using the roller 14A, so that the upper stage support part 12 is conveyed to the end of the existing pipe body 4C while supporting the pipe body 4A. Since it is possible to easily join the end portions of the tubular body 4A, the workability is excellent.

  Although the best embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are possible. Are included in the present invention.

  For example, in the above embodiment, a cylindrical FRPM pipe is used as the pipe body 4, but the present invention is not limited to this, and any material and any shape pipe body such as an FRP pipe, a steel pipe, or a concrete pipe may be used. Even if it exists, it can be conveyed.

  Moreover, although the said embodiment demonstrated the case where three pipe body 4A, 4B, 4B was conveyed, it is not limited to this, The structure which can convey two bodies or four bodies or more It can also be.

  Further, in the above-described embodiment, the lifting mechanism 122 constituted by the manual jack 122a has been described. However, the present invention is not limited to this, and for example, a cylinder-type hydraulic jack is installed in a direction to extend and contract in the vertical direction. An elevating mechanism may be configured.

In the above-described embodiment, the rollers 14A and 14B having no power have been described as the feeding mechanism. However, the present invention is not limited to this, and a roller that rotates by a motor may be used as the feeding mechanism .

  Moreover, although the tubular body transport carriage 1 according to the above-described embodiment is a form in which the rails 31 and 31 are pulled, the invention is not limited to this, and a self-propelled or non-rail-type carriage may be used. .

It is a perspective view explaining the structure of the tubular-body conveyance trolley | bogie of the best embodiment of this invention. It is explanatory drawing explaining the state which conveys a tubular body. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 for explaining the configuration of the tubular body conveying carriage that is transporting the tubular body. It is explanatory drawing explaining the state of the trolley for tube conveyance which raised the raising / lowering mechanism. (A) is explanatory drawing explaining the operation | work which joins the tube loaded on the lower stage support part, (b) is explanatory drawing explaining the operation | work which joins the tube loaded on the upper stage support part. FIG. 6 is a sectional view taken along line BB in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tube conveyance cart 11 Cart 12 Upper stage support part 122 Lifting mechanism 13 Lower stage support part 131 Fall prevention fence 14A, 14B Roller (sending mechanism)
15 Mooring band 4, 4A, 4B tube

Claims (5)

A tubular transporting carriage provided with a support portion for loading an axial direction of a plurality of tubular bodies on a long carriage in accordance with the longitudinal direction of the carriage,
An upper stage support part having a receiving part on which the tubular body that can be raised and lowered by an elevating mechanism is provided , and a lower stage support part formed on the upper surface of the carriage
The upper stage support part and the lower stage support part are provided with a delivery mechanism for feeding the tubular body in the axial direction,
The delivery mechanism of the upper support part is formed by a roller that does not protrude upward from the receiving part before ascending by the elevating mechanism but protrudes upward from the receiving part after ascending. Tube carrier. 2. The tubular body carriage according to claim 1, wherein the delivery mechanism of the lower support section is formed by a roller that is accommodated inside the carriage during transportation and protrudes when feeding out . 3. The upper stage support part is extended toward the longitudinal direction at a substantially center in the vehicle width direction of the carriage, and the lower stage support part is provided on both sides of the upper stage support part in the vehicle width direction. The bogie for transporting a tubular body according to claim 1 or 2 , wherein a fall prevention fence for the tubular body loaded on the lower support portion is formed on both side edges of the body. The tubular body is loaded on the receiving part of the lower stage support part and the upper stage support part of the tubular body transport carriage according to any one of claims 1 to 3, and the tubular bodies do not move during traveling. After the tube carriage is moved to a predetermined position, the mooring is released, the upper support is lifted to the predetermined height by the lifting mechanism, and the receiving portion is lifted to a predetermined height. A method of laying a tubular body, wherein the tubular body is lowered using the roller protruding upward . 3. The tubular body is loaded on the receiving portion of the lower stage support portion and the upper stage support portion of the tubular body transportation carriage according to claim 2 , and is moored to the carriage so that the tubular bodies do not move during traveling. The tube transport carriage is moved to a predetermined position to release the mooring, and the tube loaded on the lower support portion is sent to the predetermined position by the roller protruding from the upper surface of the carriage , A pipe laying method characterized in that the upper stage support part is raised by an elevating mechanism and the pipe body loaded on the upper stage support part is sent out to a predetermined position by the roller protruding upward from the receiving part .

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