JPH01278658A - Cave filling support tool - Google Patents

Abstract

PURPOSE:To firmly fit half-split plate-shaped bodies without dropping them from a pipeline by allowing edge sections of them to bite into the pipeline by themselves via the moment force generated by the load of a filler material. CONSTITUTION:One half-split plate-shaped body 8 is moved near from the perpendicular direction of a pipeline 4, the pipeline 4 is put on a notch hole 7, the notch hole 7 of the other half-split plate-shaped body 9 is put to the pipeline 4 from the opposite direction, vertical pieces 11 and 12 are assembled via a coupling section 13. Both half-split plate-shaped bodies 8 and 9 are bent, a pipeline insertion hole constituted of a notch hole 7 is expanded in diameter, they are moved to a gap portion, a cave filling support plate 1 is rotated in the horizontal state at the preset position, and the pipeline insertion hole is shrunk in diameter. A filler material is filled through one side of the pipeline insertion hole, thereby a cave filling support plate 10 is opened, the pipeline insertion hole is shrunk in diameter, thus the pipeline 4 is pinched and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is directed to the following technology: after passing a pipe through a pipe through-hole in a building such as a wall, floor, etc., the pipe is tightened and supported by the pipe, and the inner periphery of the pipe through-hole is tightened. The present invention relates to a hole-filling support for preventing a filler such as mortar from flowing out into a gap between a pipe and a pipe.

(Prior art) When pipes penetrate buildings such as ceilings and walls, the Fire Service Act stipulates that the gap between the pipe and the inner periphery of the pipe penetration hole must be filled with a filler such as concrete or mortar. ing.

By the way, as conventional techniques for filling the gaps around the pipes, there are disclosed Utility Model Application Publications No. 50-64222 and Utility Model Application No. 54-
It is described in Japanese Utility Model Publication No. 104525 and Japanese Utility Model Publication No. 89589/1989.

The devices described in each of the above-mentioned publications fix the pair of hole-filling support plates to the piping from the radial direction by tightening bolts, thereby closing the gap around the piping and preventing the filler from flowing out under the load of the filling material. It has a structure.

(Five problems to be solved by the invention) By the way, in the prior art described in the +tiJ publications, the hole-filling support plate is fixed to the pipe from the radial direction by tightening the bolts, so the tightening of the bolts requires no force. When the support plate is weak, there is a problem in that the hole-filling support plate is likely to fall due to the load of the filler.

Further, when the hole-filling support plate is installed at a high place such as a ceiling or a wall, the bolts must be tightened in an awkward position, resulting in poor workability.

Therefore, the present UI applicant first converts the load of filler such as mortar into a force for tightening the piping, thereby making it possible to attach the hole filling support to the piping, and also to easily attach the hole filling support to the piping with simple work. An application has been filed for a hole-filling support that can be installed.

However, in the hole filling support of the previous application, the inner peripheral edge of the notched hole was bent upward, so when it was tightened to the outside of the pipe by the weight of the half plate and the load of mortar, etc., the notched type If the bent part of the periphery becomes rounded and the load of the filler such as zero mortar that contacts the outside of the pipe increases,
It has been newly discovered that there is a risk that the rounded edge of the cutout type may act as a guide and cause the support to shift slightly downward.

In addition, the bent part of the notch type periphery acts as a reinforcing rib in the horizontal direction, but since it has a two-point support structure of vertical pieces,
It was necessary to further strengthen the intermediate portion of the half plate-like body against deflection.

(Means for Solving the Problems) A feature of the hole-filling support according to the present invention for achieving the above-mentioned problems is that it has a cutout hole that abuts at least half of the outer circumference of the pipe and extends outward from the gap in a substantially horizontal direction. A hole-filling support plate is constructed from a pair of half-plate-like bodies extended to , and each half-plate-like body is provided with a pair of vertical pieces that stand up from the notch hole side, and a pair of vertical pieces are provided at the tips of each vertical piece. is provided with an engaging part that can be hinged from the outside of the pipe, and an edge part is provided on the inner periphery of the notch hole, the tip of which bites into the outer periphery of the pipe via a bent part in the axial direction of the pipe. .

(Operation) If one half-plate member is approached from the perpendicular direction of the pipe, the outer periphery of the pipe is placed in the notch hole, and the notch hole of the other half-plate member is applied to the outer periphery of the pipe from the opposite direction. , the vertical pieces are assembled by the engaging portions. In such an assembled state, both half plates are bent and the diameter of the pipe insertion hole formed by the notch hole is enlarged, and in this state, the pipe is moved along the pipe to a gap in the ceiling, for example, By rotating the hole filling support plate horizontally at a predetermined position, the diameter of the pipe insertion hole is reduced and the position is determined. In this positioning state, the edge part bites into the outside of the pipe and closes the outer periphery from both sides.

Next, when a filler such as mortar is filled from one side of the piping through hole, the L hole filling support plate acts in the direction of opening around the engaging portion due to the load of the filler. Along with this, the diameter of the pipe insertion hole is further reduced, so that the support plate for enclosing both holes is fixed so as to sandwich the pipe.

The edge part bites into the outer circumference of the pipe.

(Embodiment of the Invention) An embodiment of the present invention will be described below based on FIGS. 1 to 6.

The hole filling support 1 is assembled from the outside of the pipe 4 to backfill a gap 5 between a pipe through hole 3 provided in a building 2 such as a ceiling or wall and the pipe 4 inserted through the hole. This supports a filling material 6 such as mortar. The gap 5 is provided in a ring shape around the pipe 4.

The hole-filling support 1 is a pair of half-plate-shaped bodies 8.9 extending substantially horizontally outward of the gap 5 by filling the cutout hole 7 that abuts at least half of the outer circumference of the piping 4. The support plate 10 is provided with a support plate 10 having holes iγ. Each half plate-shaped body 8
, 9 are provided with a pair of vertical pieces 11 and 12 standing upright from the side approaching the above +)
1.12 is provided with an engaging portion 13 that can be hinge-assembled from the outside of the pipe 4. An edge portion 16 is provided at the edge of the notch hole 7, the tip 15 of which bites into the outer periphery of the pipe 4 via a bent portion 14 in the axial direction of the pipe 4.

To be more specific, the hole-filling support plate 10 has a pipe insertion hole 17 approximately in the center, so that the whole has a ring shape, and has a width wider than the width S of the gap 5, as shown in FIG. In this case, the hole filling support plate 10
can be formed into a disk shape. The pipe insertion hole 17 has an inner diameter that is approximately the same as or slightly smaller than the outer diameter of the pipe 4, and the pipe 4 is inserted therethrough.

Further, the half-plate bodies 8 and 9 refer to plates obtained by dividing the hole-filling support plate 1O. By dividing the plate into two parts, a shape having two divided ends 18.19 can be obtained.2 In this case, the extended portion 20. The receiver can be configured to have four parts 21 and the extended part 20 rides on the recess 21. Further, in this case, the leading end 22 of the extending portion 20 may be bent back in a curved manner and a step portion 23 may be provided in the concave portion 21 of the receiving portion so that the extending portion 20 can easily ride on the four portions 21 of the receiving portion.

The cutout hole 7 is a hole provided in each of the half plates 8 and 9, and forms the pipe insertion hole 17 when the two half plates 8 and 9 are combined.

In addition, the above-mentioned vertical pieces 11.12 are the above-mentioned half plate-shaped bodies 8.9.
This refers to a protrusion that is erected from the notch hole 7 side in the axial direction of the piping 4.

Furthermore, the engagement f413 refers to the engagement f413 that is installed vertically in the axial direction of the piping 4 to hingely assemble the two halves of the plate-like bodies 8 and 9. The half plate-like bodies 8 and 9 are swung in one direction (arrows A and B in FIG. 1) to be bent as shown in FIG. 5, but in the opposite direction (!m).
The engaging portion 13 is an engaging protrusion 24 provided on the vertical piece 11 of one of the half plate-like bodies 8. and a hole 25 which is provided on the vertical piece 2 of the other half plate or shaped body 9 and which engages the engaging protrusion 24 in a swingable manner. The engaging protrusion 24 forms a hole 26 in the one half plate-shaped body 8 and bends the peripheral edge 27 of the chain type 26 to form a hole 26 in the one half plate-shaped body 8.
It can be constructed by projecting outward in the radial direction. In this case, as shown in FIG. 4, the half-plate-like body 8 is approached from below the half-plate-like body 9, and the engagement protrusion 24 is moved from the inside as shown in the same figure. It can be configured to be inserted into the hole 25 and engaged. At this time, the four axial guide portions 2 of the pipe 4 are attached to the inner surface 12a of the vertical piece 12.
8, the engagement protrusion 24 can be easily engaged with the hole 25 by the engagement amount.

The edge portion 16 is configured to bite into the piping 4 by extending the periphery of the notch hole 7 inward through the bent portion 14 so as to be perpendicular to the axis of the piping 4. The edge portion 16 can be configured as a sharp edge surface by press-molding the notch hole 7. In this case, the bent portion 14 is bent at a right angle from the tip of the upright support portion 29 erected in the axial direction of the pipe 4 and protrudes in a direction perpendicular to the axis of the pipe 4. The tip 31 of the protrusion 30 can be provided with the above-mentioned edge surface.

In this case, as shown in FIG. 2, the vertical piece 11 having the engaging protrusion 24 is formed at the tip of the protruding part 30, and the vertical piece 12 having the large engagement amount 25 supports the upright support part 29. The vertical piece 11 is formed inside the vertical piece 12 as shown in the same figure by being formed by extending straight in the axial direction of the pipe 4.
It is possible to secure a space 32 into which a can be inserted.

Further, numeral 33 indicates a stepped portion formed in the circumferential direction of the two half-plate bodies 8.9, which can strengthen the bending stress of each half-plate body 8.9.

Next, the operation will be explained.

First, in FIG. 6, when filling material 6 such as mortar from above the building 2, the half plate-like body 9 is brought close to the pipe 4 below the pipe through hole 3, and the second
As shown in the figure, the piping 4 is attached to the notch hole 7. At this time, the half plate-shaped body 8 is tilted slightly upward in the figure (in the direction of arrow A) with the hole 25 as the center. , as shown in Figure 2.
'F- Split plate plate-like body 8 When placed below the half-plate-like body 9 and tilted upwards (in the direction of arrow B in the figure) around the engaging protrusion 24, it is then pushed vertically upwards. As shown in FIG. 4, the engaging protrusion 24 is guided by four guide parts 28, and the engaging part is inserted into the hole 25 and engaged. As a result, as shown in the tfSs diagram, both the half plate-like bodies 8 and 9 are assembled, and the hole-filling support 1 is assembled. In this state, push up the center of the hole filling support 1 and
Make it approximately flat as shown in the figure. At this time, the extension portion 20 rides on the recess 21, thereby restricting further rotation. At this time, due to the following reasons, pipe insertion hole 1
As the diameter of the hole filling support plate 10 is reduced, the edge portion 16 bites into the outer periphery of the pipe 4, so that the hole-filling support plate 10 is firmly fixed to the pipe 4.

That is, a point on the edge of the notch hole 7 in the direction of separation between the two half-plate bodies 8 and 9 (arrows X and Y directions in the figure) in FIG. If the length of the straight line connecting these is R, and the color formed by the vertical line W passing through the center of the pipe insertion hole 17 and the straight line is D, then the half width U of the pipe insertion hole 17 is
is expressed by the following equation (1).

U=Rs i nD, (1) Here, the hole filling support A, 1 is in the form of a solid line in Fig. 5! When pushed upward from E as shown by the dashed line, the angularity decreases, so the half width U of the pipe insertion hole 17 becomes shorter,
8. The diameter of the pipe insertion hole 17 is reduced. In this case, as shown in FIG. As the moment force M is applied, both half plates 8.9 are bent downward due to the moment force M, and the edge portion 16 bites into the pipe 4 as shown in FIG. It can be firmly installed by automatically tightening it. In this case, the edge portion 16 is as shown by the dashed line in the figure.

Since the biting force is maintained by bending and deforming, the force that tightens the pipe is maintained over time.

Furthermore, in this case, the moment force M increases further as the load of the filler 6 increases, so that the larger the load of the filler 6, the stronger the biting force of the edge portion becomes and the hole filling support becomes stronger. Tool 1 is firmly attached.

In addition, even if the notch hole 7 side of the two half plate-like bodies 8, 9 tries to bend and deform due to the reaction force received from the piping 4 when the pipe 4 is tightened, the bent portion 14 will not be formed on the notch hole 7 side. Since it is provided as a so-called reinforcing rib, it resists bending force by 7.
It is reinforced and will not bend or deform.

At this time, the extending portions 20 of both half-shaped plates 8 and 9 are connected to the recessed portions 2.
Since it overlaps with 1 and becomes a two-layered state, the half-split plate 8
．． The filling material 6 can be effectively prevented from flowing out from the divided ends 18 and 19 of the filling material 9.

As shown in FIG.
Since the hole-filling support 1 is inserted into the hole 26 of the engagement protrusion 24, the hole-filling support 1 is not only firmly held in its attached state by the adhesive force of the filler 6; Since it enters into the recess 28, the attached state is held even more firmly.

Further, the extending portion 20 and the recessed portion 2 are provided in the half-split plate bodies 8 and 9 marked E.
1 is not provided, even if the split ends 18.19 are formed so that they abut against each other when the two half-split plates 8.9 are opened into a substantially flat plate shape, the two half-split plates 8.9 When opened, further rotation is restricted.

Note that - both half-split plates 8 and 9 of the above embodiment are extended! 2
0 rests on the recess 21, or the split ends 18 and 19 abut each other to prevent further downward rotation. As mentioned above, when these half-shaped plates 8 and 9 become approximately flat, the diameter of the pipe insertion hole 17 is reduced and the pipe 4 is held between them, so the hole-filling support 1 is designed to hold the pipe 4. It can be installed securely.

Further, although the hole filling support plate 10 is formed in a disk shape, it may be in a rectangular shape such as a quadrangle or a hexagon.

(Effects of the Invention) As explained above, in the hole-filling support according to the present invention, the edge portion of the half plate-shaped body automatically bites into the pipe due to the moment force generated by the load of the filler, so it is firmly fixed without falling off from the pipe. In addition, when the hole filling support is installed on the ceiling, the moment force described in 1-1 increases in proportion to the load of the filling, so even if the weight of the filling becomes heavy, the hole filling support can be attached to the pipe. It will stay attached and will not fall off.

Furthermore, since the notch of the half-plate-like body is provided at the edge of the hole through the bent part of the edge part, the bending stress on the larger side of the notch becomes stronger, making it difficult to deform by bending, and the installation state is reliably maintained.

[Brief explanation of the drawing]

1 to 6 relate to one embodiment of the present invention. Fig. 1 is a perspective view, Fig. 2 is an exploded perspective view, Fig. 3 is a side view with the edge portion biting into the pipe, Fig. 4 is a side view when both half plates are assembled, FIG. 5 is a side view when the hole-filling support is attached to the pipe through-hole, and FIG. 6 is a side sectional view of the hole-filling support when it is attached to the pipe through-hole. 11. Hole filling support, 21. Buildings, 30. Piping through hole, 43. Piping, 50. Gap, 61. Filling, 79. Notch holes, 8, 9. , half plate-like body, 101. Hole filling support plate, 1
1,12. , vertical piece, 130. Engagement portion, 140. Bending portion, 16. Edge department. Patent applicant Koizumi Do Co., Ltd. Hiromitsu Okinaga Agent Patent attorney Yoshiharu Yoshida Figure 4 Figure 6

Claims (1)

[Claims] A hole-filling support that is assembled from the outside of the pipe and supports a filler such as mortar in order to backfill the gap between a pipe through-hole provided in a building and the pipe penetrated through the hole. In this case, the hole-filling support plate is constituted by a pair of half plate-like bodies having a notched hole abutting at least half of the outer periphery of the piping and extending substantially horizontally outward from the gap, and each half plate-like body The body is provided with a pair of vertical pieces that stand upright from the notch hole side, and the tip of each vertical piece is provided with an engaging portion that can be hinged from the outside of the pipe, and a pipe shaft is attached to the inner periphery of the notch hole. 1. A hole-filling support, characterized in that it is provided with an edge part whose tip bites into the outer periphery of a pipe through a bending part in the direction.