JP2019132017A - Platform for inspection on common conduit - Google Patents

Abstract

To provide a platform for inspection on a tunnel-shaped common conduit of which a structure and a construction are easy, allowing the construction in any size of a tunnel and allowing drainage.SOLUTION: A mounting plate secured on Left and right end parts of a conduit lid 1 used as a platform from its rear surface is attached with a position adjusting plate 5 capable of adjusting position in a lateral direction by a bolt 8, A backing plate 11 is rotatably attached to the position adjusting plate 5 by a hinge 9. The backing plate 11 tilts in accordance with the tilt of a segment 13 of a common conduit and is secured on the segment 13 with an anchor bolt 14 in a condition of contacting the segment 13, to make a concave part 16 above the segment 13 bent below the conduit lid a drain channel.SELECTED DRAWING: Figure 4

Description

  The present invention refers to a tunnel-like joint groove through which a power cable, a communication cable, a drain pipe, and the like are passed, or a drainage channel that guides sewage, rainwater, springed groundwater, and the like (hereinafter, these are simply referred to as joint grooves. In the book, the common groove refers to a scaffold for inspection installed at the lower center of the common groove and the drainage channel, and a mounting bracket for mounting the scaffold inside the common groove.

  Regarding the tunnel through which vehicles pass, the floor structure at the bottom of the tunnel is often constructed by placing concrete or concrete blocks. Patent Document 1 discloses a floor structure including an invert and a side wall constructed at the bottom and both sides in a tunnel, a column vertically installed on the invert, a side wall and a floor slab horizontally mounted on the column. ing.

  Patent Document 2 discloses a tunnel for laying various cables such as power lines and a tunnel for maintenance management at the time of service of a cave, comprising a segment in which a floor is constructed by placing concrete or precast concrete blocks in an invert part. ing.

JP 2006-152746 A Japanese Patent Laid-Open No. 10-339097

  In the tunnel disclosed in Patent Document 1, it is necessary to prepare and construct a large number of members such as inverts, side walls, columns, and floor slabs in order to construct a floor structure, and the structure is complicated and the construction is complicated. In this respect, the tunnel disclosed in Patent Document 2 has a simple structure and is easy to construct. However, when constructing by placing concrete, it is particularly useful for constructing a floor with drain holes. When construction takes time and the drain hole is clogged with dust, it is not easy to remove it. Also, if the floor is constructed with precast concrete blocks, it must be prepared according to the size of the tunnel segment.

  An object of the present invention is to provide an inspection scaffold for a joint groove, which can be constructed in a tunnel of any size, can be constructed in any size of tunnel, and can be drained, and a mounting bracket for mounting the scaffold. To do.

The inspection scaffold of the invention according to claim 1 is characterized by comprising a groove lid placed at the center lower part of the tunnel-shaped joint groove,
The invention according to claim 2 is the invention according to claim 1, wherein at least one side end of the groove lid is fixed to the segment of the common groove by the first fixing means. Features.

According to a third aspect of the present invention, in the first aspect of the invention, the groove lid includes a hinge that includes a hinge that pivotally supports the groove lid so that the groove lid can pivot upward on a segment of the common groove. Connected by means, and the other end is placed on the segment,
The invention according to claim 4 is characterized in that the groove cover of the invention according to claim 1-3 is grating.

The invention according to claim 5 is a mounting bracket for mounting the groove lid of the invention according to claim 1, comprising a receiving frame on which the side ends of the groove lid are placed on both sides of the bracket, and the receiving frames on both sides Among them, the receiving frame on at least one side is fixed to the segment of the common groove by the second fixing means,
The invention according to claim 6 is the mounting bracket of the invention according to claim 5, wherein the second fixing means for fixing the receiving frame on one side of the mounting bracket to the segment is capable of pivoting the mounting bracket upward. It includes a hinge that pivotally supports, and a receiving frame at the other end of the mounting bracket is placed on the segment.

  According to the inspection scaffold according to the first aspect of the present invention, no matter what size the joint groove is, the groove cover is simply placed on the central lower part of the joint groove, and the groove cover both ends of the tunnel with the joint groove curved. It can be attached while being supported by the segment, and if the edges at both ends of the groove cover bite into the segment, the fixed state is maintained without inadvertent movement. Moreover, the recessed part formed by the curved segment under this groove cover can be utilized as a drainage channel, and the special structure and construction for ensuring a drainage channel are not required. Moreover, since the groove lid is merely placed, it can be lifted and removed, and the drainage can be easily cleaned by removing it.

  According to the second aspect of the present invention, the groove lid is fixed and fixed to the common groove segment by the first fixing means, and does not move during the inspection operation, so that the operation can be performed stably.

  According to the invention of claim 3, the groove lid can be opened and closed by a hinge provided at one end, and the drainage channel under the groove lid can be easily cleaned by lifting and opening the other end. become.

  According to the invention which concerns on Claim 4, a groove cover is reduced in weight, and the accumulation condition of the waste of a drainage channel can be easily confirmed through a groove cover.

  According to the invention of claim 5, the mounting bracket is fixed by fixing at least one of the receiving frames provided on both sides of the mounting bracket to the segment by the second fixing means. If fixed, there is no need to individually fix the receiving frames on both sides, and the time and effort of fixing can be halved.

  According to the sixth aspect of the present invention, the mounting bracket can be opened and closed by the hinge at one end, and the other side receiving frame is not obstructed by lifting the other side receiving frame together with the groove lid, and the groove lid. The lower drainage can be easily cleaned.

The top view of a grating (groove cover). The enlarged plan view of the principal part of the grating shown in FIG. FIG. The front view of the grating shown in FIG. 1 attached to the segment of the common groove. The perspective view of the grating shown in FIG. 1 attached to the segment of a common groove. The front view which shows the state which lifted one side of the grating shown in FIG. The top view of the grating (groove cover) of another aspect. The front view of the grating shown in FIG. 7 attached to the segment of the common groove. The figure which shows the state constructed in the inclined common groove. Schematic which shows another embodiment which attached the groove cover (grating) to the segment of the common groove. The top view of a mounting bracket. Sectional drawing in the AA line part of the attachment metal fitting shown in FIG. 11 fastened to the segment of the common groove | channel. The enlarged plan view of the principal part of the attachment metal fitting shown in FIG. 11 attached to a segment. FIG. FIG. 12 is a plan view in which a pair of gratings are mounted on the mounting bracket shown in FIG. 11. The enlarged plan view of the principal part of FIG. FIG. The front view of the grating shown in FIG. 15 fixed to the segment of the common groove. FIG.

  FIG. 1 shows an example of a groove lid used as a scaffold for inspection of a common groove, and shows a grating 1 having a first fastening means excluding an anchor bolt described later. The grating 1 is arranged at regular intervals. A thin plate-like bearing bar 1a provided, an end plate 1b connecting both ends of the bearing bar 1a provided side by side, and parallel to the end plate 1b and orthogonal to the bearing bar 1a, and connecting the bearing bar 1a The mounting plate 3 is fixed to the back and forth of the inner side of the left and right end plates 1b, that is, at the four corners of the grating 1 by welding, for example, by welding.

  As shown in FIG. 2, the mounting plate 3 is fixed to each bearing bar 1a from the end to the fourth bearing bar 1a from the front side between the end plate 1b and the twist bar 1c, and a pair of long holes 4 are paired. It is located between the bearing bars on both sides of the bearing bar 1a and is formed in parallel along the bearing bar 1a.

  Further, as shown in FIG. 3, each of the mounting plates 3 is provided with a position adjusting plate 5 on the back surface, and each position adjusting plate 5 has a bolt through hole 6 at a position corresponding to the elongated hole 4. ing.

  The mounting plate 3 and the position adjusting plate 5 include a bolt 7 that passes through the elongated hole 4 of the mounting plate 3 and the bolt through hole 6 of the position adjusting plate 5 from above, and a bolt end that protrudes from the bolt through hole 6 of the position adjusting plate 5. The position adjusting plate 5 can be adjusted in the direction of the arrow in FIG. 3 with the nut 8 loosened, and the bolt 7 is connected to the elongated hole 4 by adjusting the position. It can be performed within a range that can move in the longitudinal direction.

  The bolt through hole 6 is formed as a fool hole having a diameter larger than the shaft diameter of the bolt 7, thereby enabling the bolt 7 to move back and forth and right and left within the range of the flaw hole. You may enable it to adjust position to right and left.

  A projecting end portion of the position adjusting plate 5 projecting from the mounting plate 3 is connected to a back surface via a hinge 9 on the back surface, and the front and rear contact plates 11 on one side of the left and right side support plates 11 (see FIG. In FIG. 1, the right and left abutting plates 11) are fixed to the segment 13 of the common groove by anchor bolts 14. Reference numeral 12 in FIG. 1 denotes an anchor bolt hole formed in the contact plate 11.

  The anchor bolt 14 constitutes a first fastening means together with the mounting plate 3, the position adjusting plate 5, the hinge 9 and the contact plate 11, and the first fastening means includes the mounting plate 3, the position adjusting plate 5, the hinge. 9, part of the other components of the contact plate 11 and the anchor bolt 14 other than the anchor bolt 14 can be omitted, and the anchor bolt 14 can be directly attached to the grating 1 by any attachment means. Good. In this case, therefore, the first fastening means comprises an anchor bolt 14 and some attachment means for attaching the anchor bolt 14 to the grating 1.

  The front and rear contact plates 11 on the other side (the front and rear contact plates 11 on the left side in FIGS. 1 and 4) are supported while pressed against the segment.

In the state of FIG. 4, the grating 1 is used as a scaffold for inspection, and the recess 16 formed by the segment 13 under the grating functions as a drainage channel.
FIG. 5 shows the mounting state of the grating 1.

  When dirt accumulates in the recess 16 through the grating 1 and the function of the drainage channel is impaired and the drainage channel needs to be cleaned, the other side of the grating 1 is lifted in the direction of the arrow (FIG. 6), and the grating 1 is raised. The recess 16 is opened.

  In the above embodiment, the mounting plate 5 and the position adjusting plate 5 are attached to the grating 1 used as a scaffold for inspection, and further the attaching plate 11 is attached to the position adjusting plate 5 via the hinge 9, and the one attaching plate 11 is attached to the anchor bolt. 14 and FIG. 8 show an example of fixing to the joint groove segment 13. In the embodiment shown in FIGS. 7 and 8, as shown in FIG. Leg portions 19 are provided projecting downward on the front and rear sides of each of them, and a mounting plate 21 is fixed to the lower end of each leg portion 19 with, for example, a bolt. Are pivotably connected, and a contact plate 11 on one side (right side in FIG. 8) is fixed to the segment 13 of the common groove by an anchor bolt 14.

  In the present embodiment, the leg portion 19, the mounting plate 21, the hinge 9, the contact plate 11, and the anchor bolt 14 constitute first fastening means for fastening the groove lid (grating) 8 to the segment 13. The mounting plate 21 may be directly attached to the grating 18 with the portion 19 omitted, or the anchor bolt 14 may be directly attached to the grating 18 by some attachment means as described above. In these cases, therefore, the attachment plate 21, the hinge 9, the contact plate 11, and the anchor bolt 14 or the anchor bolt 14 and some attachment means constitute the first fastening means.

  When the joint groove has a slope as shown in FIG. 9, the long and short legs 23 and 24 are combined to make the groove cover (grating) 16 horizontal, and the groove cover (grating) 1 as a scaffold is attached. Can be configured in steps.

  In another embodiment, a groove lid (grating) 26 is placed directly on the common groove segment 13 (FIG. 10). In this embodiment, the recess 16 on the curved segment 13 under the grating is a drainage channel. In this embodiment, the fastening means for fixing the grating 26 to the segment 13 is not used. However, the edge 26 at both ends of the grating 26 is locked to the segment 13, so that the grating 26 is moved in the horizontal direction of FIG. Even if it tries to move, the edge e bites into the segment 13 so that the movement is prevented.

  11 and 12 show a groove lid mounting bracket 28 used as an inspection scaffold, FIG. 11 is a plan view, FIG. 12 is a cross-sectional view taken along line AA of FIG. 11, and the mounting bracket 28 is a vertical portion 29a. A receiving frame 29 composed of a horizontal portion 29b is provided on both the left and right sides. The mounting bracket 28 in the illustrated embodiment has a frame-like structure in which left and right receiving frames 29 are connected by connecting plates 31 in the front and rear.

As shown in the enlarged view of FIG. 12, the horizontal portions 29b of the left and right receiving frames 29 are cut by a certain section as shown in the enlarged view of FIG. A pair of elongated holes 4 are formed in the mounting plate 31 that is preferably fixedly welded and stretched, similarly to the mounting plate 3 of the above embodiment. Each elongated hole 4 is located between the bearing bars 1a constituting the grating 29 used as a groove lid in the state shown in FIG. 15 in which a pair of gratings 29 are mounted on the mounting bracket 28, as in the above-described embodiment ( 16), extending parallel to the bearing bar 1a.

  As shown in FIG. 17, the position adjustment plate 5 is attached to the attachment plate 32 in the direction of the arrow in FIG. 17 by bolts 7 and nuts 8 as shown in FIG. A contact plate 11 is attached to a side end of the plate 5 via a hinge 9. The backing plate 11 is fixed to the aforementioned segment 13 by anchor bolts 14 as in the above embodiment. The support plate 11 is pivotally supported by the position adjustment plate 5 by the hinge 9 so that it can be tilted and attached to the joint groove of any size corresponding to the tilt of the segment. .

  In the present embodiment, the mounting plate 31, the position adjusting plate 5, the hinge 9, the contact plate 11 and the anchor bolt 14 constitute the second fastening means for the mounting bracket. As for the second fastening means, as in the first fastening means described above, some of the other components except the anchor bolt 14 can be omitted, and the anchor bolt 14 can be attached by some means. The metal fitting 28 may also be directly attached. In this case, the second fastening means includes the anchor bolt 14 and attachment means for attaching the anchor bolt 14 to the attachment fitting 28.

  FIG. 18 shows a front view of an example in which the groove lid 1 made of grating is installed on the receiving frame 29 of the mounting bracket 28 fixed to the segment 13 by the second fixing means including the anchor bolt 14. In the embodiment shown in FIG. 18, the left and right contact plates 11 are fixed to the segment 13 by the anchor bolts 14, whereby the mounting bracket 28 is fixed to the segment 13. However, since the groove lid 1 can be removed simply by being attached to the left and right receiving frames 29, when cleaning the drainage channel under the groove lid, the groove lid 1 is lifted from the mounting bracket 28 and removed. Is done.

Of the abutting plates 13 attached to the left and right receiving frames 29 of the mounting bracket 28, only one abutting plate 13 is pivotally mounted by the hinge 9, and the other abutting plate 13 is only pressed against the segment 13 to anchor. The bolt 14 may not be fixed to the segment 13. Thereby, the mounting bracket 28 can be opened and closed, and the side not fixed to the segment 13 may be lifted together with the groove lid 1 to open the drainage channel.

 The inspection scaffold according to the present invention can be used in the above-mentioned common groove through which power cables, communication cables, drain pipes, etc. are passed, and also tunnel-like drainage that guides drainage of sewage, rainwater, springed groundwater, etc. It can also be used as a scaffold when there is little drainage on the road and it is not soaked in drainage.

1,26,29 ・ ・ Grating (groove cover)
3, 32 ·· Mounting plate 4 · Long hole 5 · Position adjustment plate 6 · Bolt through hole 7 · Bolt 8 · Nut 9 · Hinge 11 · · Plate 13 · · Segment 14 · Anchor bolt 16 .. Recess 19.. Legs 23 and 24.. Leg 28.. Mounting bracket 29.

Claims (6)

  A scaffold for inspection of a joint groove or drainage channel, comprising a tunnel lid or a groove lid placed at the center lower part of the drainage channel.   2. The joint groove or drainage channel according to claim 1, wherein at least one side edge part of the groove lid is fixed to a common groove or drainage channel segment by a first fastening means. Scaffolding for inspection.   The groove lid is connected to a common groove or drainage channel segment by a first fastening means including a hinge that pivotally supports the groove lid so that the groove lid can be moved upward, and the other side edge is on the segment. The joint groove or drainage inspection scaffold according to claim 1, wherein the scaffold is placed.   4. The joint groove or drainage inspection scaffold according to claim 1, wherein the groove lid is a grating.   A mounting bracket for mounting the groove lid in the scaffold for inspection according to claim 1, comprising a receiving frame on which the side end of the groove lid is placed on both sides of the bracket, and at least one side of the receiving frames on both sides The mounting bracket is fixed to the common groove or the drainage channel segment by the second fixing means.   The second fastening means for fastening the receiving frame on one side of the mounting bracket to the segment includes a hinge that pivotally supports the mounting bracket so as to be pivotable upward, and the receiving frame on the other end of the mounting bracket is the segment. The mounting bracket according to claim 5, wherein the mounting bracket is placed on the top.