JP6045418B2 - Drainage sleeve installation jig - Google Patents

Description

  The present invention relates to a drainage sleeve installation jig for preventing fresh concrete from flowing into a sleeve when the drainage sleeve is installed.

  In construction sites such as high-rise buildings, when installing drainage sleeves on pressure-resistant panels and dirt slabs, for example, a half pipe is placed between so-called panels (concrete panel: abbreviation for concrete formwork plywood) After the ready-mixed concrete placed in the frame is hardened, the mold is removed and formed. When providing a drainage sleeve in this way, make sure that there is no gap between the open end of the pipe and the surface of the formwork so that ready-mixed concrete does not flow into the pipe. It is necessary to take measures. After the concrete is solidified, the pipe is buried in the concrete, and the drainage sleeve inlet / outlet is secured by removing the panel control panel.

  However, there is a problem that the position of the half pipe is displaced from the predetermined position due to the flow pressure when the concrete is poured into the mold, and the ready-mixed concrete flows into the gap between the both ends of the half pipe and the control panel. There is a problem that the concrete remains in the drainage sleeve and solidifies. As a means to solve these problems, the drainage sleeve has a flat portion that closes the open end of the half pipe, and extends from the left and right ends of the cap. A drain sleeve cap having a flange portion for fixing to the ground has been developed (see, for example, Patent Document 1).

Noto 3126312 Publication

  However, in the cap described in Patent Document 1, in a state in which ready-mixed concrete is poured into a mold and solidified, and the mold is removed, the opening of the drainage sleeve remains concealed by the flat portion, and forms a water outlet. However, there is a problem that it is necessary to hit the flat portion with a hammer and destroy it by the impact force. This work is indispensable because water does not flow unless an opening is formed, but it is troublesome to prepare and destroy a hammer, and when the half pipe has a small diameter and the area of the flat part is small. Has a problem that it is difficult to destroy only the flat portion with a hammer. In addition, since the slit provided in the flat portion for punching is formed with a diameter smaller than the inner diameter of the drainage sleeve, the portion remaining after punching protrudes into the drainage sleeve, which impedes drainage. It was.

  In addition, since the cap is in close contact with the drainage sleeve but not in close contact with the mold, if there is a gap between the cap and the mold, the cement that has entered the gap forms the flat portion. There has been a problem that there is a risk of flowing into the drainage sleeve through a plurality of slits.

  Moreover, in the cap described in Patent Document 1, it is necessary to fix the flange portion that extends to the outside of the left and right ends of the cap after being covered with a half pipe, and is fixed to the floor surface with screws or the like, and the floor surface is concrete. There was a problem that it was difficult to fix with nails. Since the flange portion is formed to project outside the side surface of the outer cap of the half pipe, even if an attempt is made to provide a drain sleeve along or near the wall surface, the flange portion is separated from the wall or the cap is removed. There was a problem that it could not be used.

  Therefore, the present invention prevents the displacement at the time of installing the drainage sleeve, prevents the inflow of the ready-mixed concrete into the drainage sleeve, and allows the drainage sleeve to be easily detached from the drainage sleeve after the drainage sleeve is formed. An object is to provide a jig.

A first aspect of the present invention is a drainage sleeve installation jig used when installing a drainage sleeve where it is partitioned by a mold,
A semi-circular curved portion having an arc surface capable of contacting the inner peripheral surface of the drainage sleeve on the outer peripheral side;
One end surface side of the curved portion is projected in a semicircular fan-shaped bowl outwardly in the radial direction of the curved portion, and the curved portion side is an open end contact surface that can contact the open end portion of the drainage sleeve. A flange portion that is a mold contact surface that can be in contact with the mold surface on the side opposite to the opening end contact surface;
A claw that is erected in a rib shape parallel to the flange portion on the end surface of the curved portion on the flange portion side and that can lock the outer peripheral portion of the curved portion after contacting the drainage sleeve to the curved portion. One or more engaging portions on the curved portion side;
A drainage sleeve installation jig comprising a through hole for attaching a biting member, which is provided inside the curved portion and is fixed in a state where the mold contact surface is in contact with the mold surface. Provide ingredients.

The curved portion has a tapered shape that decreases in diameter as the distance from the flange portion side increases.
The locking portion has elasticity, and the length from the outer peripheral surface of the curved portion to the claw is slightly longer than the thickness of the drainage sleeve,
A column that connects both ends of the curved portion on the opening side and a second column that is perpendicular to the column and connects the central portion of the curved portion and the central portion of the column,
It is preferable that the through hole is provided in the inner surface of the curved portion and the second support column.

  The drainage sleeve installation jig of the present invention is configured as described above, and according to the drainage sleeve installation jig of the present invention, a biting member such as a nail is attached to the through hole and fixed to the mold. Therefore, the position shift at the time of drainage sleeve installation is prevented, and it can be easily removed from the drainage sleeve after the drainage sleeve is formed.

  In addition, the drainage sleeve installation jig of the present invention seals the opening of the drainage sleeve by the curved portion that contacts the inner peripheral surface of the drainage sleeve and the flange that covers the opening end of the drainage sleeve together with the mold. Therefore, the inflow of concrete or the like into the sleeve can be prevented.

  Further, according to the drainage sleeve installation jig of the present invention, the half pipe is brought into close contact with the drainage sleeve installation jig by the engaging body that engages the outer surface of the opening end of the drainage sleeve. It is possible to prevent a gap from being formed between the inner peripheral surface and the flange portion.

  Moreover, the jig | tool for drainage sleeve installation of this invention can make it easy to remove integrally with a formwork by inclining a curved part in the direction which leaves | separates gradually from the internal peripheral surface of a drainage sleeve.

It is (a) front view (b) side view (C) principal part AA sectional drawing of the jig | tool for drainage sleeve installation of Example 1 of this invention. It is a figure which shows the attachment procedure of the jig | tool for drainage sleeve installation of Example 1 of this invention. It is a perspective view which shows the attachment state to the reverse pipe of the jig | tool for drainage sleeve installation of Example 1 of this invention. It is (a) front view (b) principal part A'-A 'surface sectional drawing of the jig | tool for drainage sleeve installation of Example 2 of this invention. It is a perspective view of the jig | tool for drainage sleeve installation of Example 2 of this invention.

  Hereinafter, although one embodiment of a drainage sleeve installation jig of the present invention is described concretely using an example with reference to drawings, the present invention is not limited to these.

  FIG. 1: is the (a) front view (b) side view (C) principal part AA sectional drawing of the jig | tool for drainage sleeve installation of Example 1 of this invention. Moreover, FIG. 2 is a figure which shows the attachment procedure of the jig | tool for drainage sleeve installation of Example 1 of this invention. FIG. 3 is a perspective view showing a state in which the drainage sleeve installation jig according to the first embodiment of the present invention is attached to the split pipe.

  The drainage sleeve installation jig 1 surrounds a drainage sleeve 2 made of a vinyl chloride-made cylindrical pipe and cut in half so that the cross-section of the pipe is a semicircular arc with a panel 3. It is the jig | tool for the drainage sleeve installation used when installing in the place divided by the formwork formed by. In addition, in FIG. 2 etc., the part extended in the longitudinal direction on the opposite side to the opening end contact surface 122 of the drainage sleeve 2 is abbreviate | omitting illustration. The drainage sleeve installation jig 1 includes a curved portion 11, a flange portion 12, an engagement portion 14, and a through hole 13, which can be manufactured integrally by molding a resin material. As shown in FIG. 2, the drainage sleeve installation jig 1 is erected and fixed to the surface of the panel 3 for forming the formwork for pouring the ready-mixed concrete, that is, the plywood for the concrete formwork of the formwork, A drainage sleeve 2 forming a drainage sleeve is fitted and used from the outside of the drainage sleeve installation jig 1.

  The curved portion 11 is semicircular and has an arc surface that can contact the inner peripheral surface 22 of the drainage sleeve 2 on the outer peripheral side. The curvature of the arc surface is a curvature that substantially matches the curvature of the inner peripheral surface 22 of the drainage sleeve 2. In this embodiment, the entire outer periphery is an inner peripheral contact arc surface that contacts the inner peripheral surface 22 of the drainage sleeve 2. Moreover, it becomes a taper shape in which a diameter becomes small as it leaves | separates from the flange part 12 side. In the present embodiment, the angle formed by the curved portion 11 and the flange portion 12 is 91 ° on the drainage sleeve 2 mounting side, but is not limited thereto. In the present embodiment, the width of the bending portion 11 is about 20 mm, but is not limited thereto.

  The flange portion 12 protrudes from the one end face side of the bending portion 11 in the shape of a semicircular fan-shaped hook outward in the radial direction of the bending portion 11. In the flange portion 12, the curved portion 11 side is an open end contact surface 122 that can contact the open end portion 21 of the drainage sleeve 2. Moreover, in the flange part 12, the mold contact surface 121 which can contact | abut the surface opposite to the opening end contact surface 122 with the surface of the panel 3 which is a mold is formed. The open end 21 of the drainage sleeve 2 is sealed by the curved portion 11, the flange portion 12, and the panel 3 fixed to the drainage sleeve installation jig 1. In the present embodiment, the flange portion 12 has a thickness of about 3 mm, but is not limited thereto.

  The through hole 13 is a hole for attaching a biting member (not shown) for fixing the formwork contact surface 121 in contact with the surface of the panel 3. The through holes 13 are provided at two locations on the left and right sides of the inner surface of the bending portion 11. The drainage sleeve installation jig 1 of this embodiment includes a column 15a that connects both ends of the curved portion 11 on the opening side and a column 15b that is perpendicular to the column 15a and connects the central portion of the curved portion 11 and the central portion of the column 15a. The through hole 13 is provided on the support column 15b in addition to the inner surface of the curved portion 11, but the through hole 13 may be provided only on the support column 15b. The through hole 13 is provided on the inner side of the inner peripheral contact arc surface of the bending portion 11.

  The engaging portion 14 is erected in a rib shape in parallel with the flange portion 12 on the end surface of the bending portion 11 on the flange portion 12 side. Further, the engaging portion 14 has a claw on the opening end contact surface 122 side that allows the outer peripheral surface 23 of the bending portion 11 to be locked after the drainage sleeve 2 is brought into contact with the bending portion 11. The upper part of the nail on the opening end contact surface 122 side has an inclination that spreads toward the curved portion 11, and the lower surface of the protruding part of the nail is flat. In addition, illustration of the engaging part 14 is abbreviate | omitted in the side view of FIG.1 (b). In the present embodiment, the thickness of the rib portion of the engaging portion 14 is about 1 mm, but is not limited to this.

  Although two engaging portions 14 are provided in this embodiment, only the central portion may be provided, or three or more engaging portions 14 may be provided. Since the engaging portion 14 has elasticity, the upper inclination of the claw is also the drainage sleeve when the drainage sleeve 2 is inserted in a state where the formwork contact surface 121 of the flange portion 12 is in close contact with the surface of the panel 3. When it is pushed by the two open ends, it can be easily warped and inserted. Since it is fixed by the engaging portion 14, it is possible to prevent a gap from being formed between the flange portion 12 and the opening end portion 21.

  The engagement portion 14 also has a length from the outer peripheral surface of the bending portion 11 to the claw so that the drainage sleeve 2 is not lifted and removed after the drainage sleeve 2 is inserted and brought into contact with and fitted to the bending portion 11. The drainage sleeve 2 is detached from the drainage sleeve installation jig 1 when the concrete is poured into the mold after the drainage sleeve 2 is fitted into the drainage sleeve installation jig 1. Can be prevented.

  The drainage sleeve installation jig 1 of the present embodiment is a floor surface in which the panel 3 is partitioned by standing a formwork at a drainage sleeve installation site such as a dirt slab at the construction site such as a high-rise building or the lowest layer of a house. The half pipe that becomes the drainage sleeve 2 is placed so that both ends of the drainage sleeve 2 are in contact with the opposite surfaces of the panel 3 and the opening of the drainage sleeve 2 is in contact with the floor surface, and is placed in the formwork. The ready-mixed concrete is cast, and after the ready-mixed concrete poured into the form is solidified, the form is removed and formed. In addition to ready-mixed concrete, other solidifying agents that have fluidity and are allowed to stand and solidify after a certain period of time may be used. A mold having a peelable surface after the solidifying agent is solidified is used. After the concrete is solidified, the drainage sleeve 2 is embedded in the concrete, and the drainage sleeve 2 is secured by removing the panel 3 of the formwork. Drainage collected using the drainage sleeve 2 can be discharged to the outside by a pumping pump or the like.

  First, the drainage sleeve installation jig 1 is placed on the surface of two opposing control panels 3 at positions where the drainage sleeve 2 is to be provided so that the formwork contact surface 121 is in contact with the control panel 3 and bites into the through holes 13. The member is inserted and inserted into the control panel 3 by screwing or the like to fix the drainage sleeve installation jig 1 to the control panel 3. A nail is preferably used as the biting member, but a screw or the like can also be used. The two panel 3 attached with the drainage sleeve installation jig 1 are placed in parallel to the drainage sleeve 2 inlet side, and a plurality of other panels are erected on the drainage sleeve 2 longitudinal side. All the control panels surround the drainage sleeve 2 to form a mold for placing ready-mixed concrete. Since it is not necessary to screw onto the floor surface, it can be installed even if the floor surface is hard, and it can also be installed along or near the wall surface.

  After that, the drain sleeve 2 is attached to the drain sleeve installation jig 1 so that the inner peripheral surface 22 is in close contact with the inner peripheral contact arc surface of the curved portion 11 with the open end 21 in contact with the open end contact surface 122. Just by fitting, the ready-mixed concrete is poured and hardened into the formwork, and by simply removing the formwork, the installation of the drainage sleeve embedded in the concrete is easily completed and a drainage tunnel is formed. Since the drainage sleeve 2 is fixed by the claw of the engaging portion 14, there is no possibility that the position of the drainage sleeve 2 is shifted from a predetermined position due to the flow pressure when pouring the ready-mixed concrete into the mold. Since both ends of the drainage sleeve 2 and the panel 3 are in close contact with each other through the flange portion 12, there is no possibility that the ready-mixed concrete flows into the drainage sleeve 2 and the concrete remains inside and solidifies.

  When removing the control panel 3, which is the wall of the mold, the drainage sleeve installation jig 1 fixed to the control panel 3 side by the biting member can be removed as a unit, so that it is not necessary to smash it with a hammer or the like. In the present embodiment, the curved portion 11 is tapered, that is, is inclined in a direction gradually away from the inner peripheral surface 22 of the drainage sleeve 2, so that the nail of the engaging portion 14 is removed when the control panel 3 is removed. Even if it doesn't get caught and it doesn't give excessive force, it can be removed very easily. When the control panel 3 is removed, the drainage sleeve 2 is completely hollow and no overhanging remains, so that there is no obstacle to drainage.

  According to the present embodiment, it is possible to prevent displacement when the drainage sleeve is installed, to prevent the flow of ready-mixed concrete into the drainage sleeve, and to easily remove it from the drainage sleeve after the drainage sleeve is formed. According to the present embodiment, the drain tunnel for draining the water accumulated in the pit can be installed with a beautiful finish without trouble.

  FIG. 4 is a sectional view (a) front view (b) main portion A′-A ′ of the drainage sleeve installation jig according to the second embodiment of the present invention. FIG. 5 is a perspective view of the drainage sleeve installation jig according to the second embodiment of the present invention. Since the drainage sleeve installation jig 1 'of the second embodiment is identical to the structure of the drainage sleeve installation jig 1 of the first embodiment except for the shape of the curved portion, the description thereof will be omitted (in FIG. 4 and FIG. The same number is assigned to the portion that matches 1). As shown in FIGS. 4 and 5, the curved portion 11 ′ of Example 2 does not need to be continuously formed in the circumferential direction, and has an inner circumferential contact arc surface 111 ′ corresponding to the diameter of the drainage sleeve 2. The curved portion 11 ′ can be formed by being separated from other portions. The inner contact arcuate surface 111 'is larger than the radius of the other part. The half pipe made of vinyl chloride used for the drainage sleeve 2 includes a VP pipe and a VU pipe, and the diameters are 75, 100, 150, and 200. The curved portion 11 portion of the mold used for the molding of the first embodiment is set to have the smallest diameter of the drainage sleeve 2 to be used, and the inner circumferential contact arc surface 111 ′ of the curved portion 11 ′ is formed. By leaving only the corresponding part as an independent piece, the position of the piece can be changed according to the diameter of the drainage sleeve 2, and the drainage sleeve that can be attached to various half pipes using the same mold An installation jig can be formed. Since it is costly to create a mold, it is possible to reduce costs by manufacturing jigs for installing drainage sleeves for various diameters simply by changing the position of the top. In addition, when providing a drainage sleeve with a cylindrical pipe instead of a half pipe, it can also install using the jig | tool for two drainage sleeve installation.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Drainage sleeve installation jig 11, 11 'Curved part 111' Inner circumference contact arc surface 12 Flange part 121 Formwork contact surface 122 Open end contact surface 13 Through-hole 14 Engagement part 15 Support | pillar 2 Drainage sleeve 21 Open end part 22 Inner peripheral surface 23 Outer peripheral surface 3 Control panel

Claims (2)

A drainage sleeve installation jig used when installing a drainage sleeve in a place partitioned by a mold,
A semi-circular curved portion having an arc surface capable of contacting the inner peripheral surface of the drainage sleeve on the outer peripheral side;
One end surface side of the curved portion is projected in a semicircular fan-shaped bowl outwardly in the radial direction of the curved portion, and the curved portion side is an open end contact surface that can contact the open end portion of the drainage sleeve. A flange portion that is a mold contact surface that can be in contact with the mold surface on the side opposite to the opening end contact surface;
A claw that is erected in a rib shape parallel to the flange portion on the end surface of the curved portion on the flange portion side and that can lock the outer peripheral portion of the curved portion after contacting the drainage sleeve to the curved portion. One or more engaging portions on the curved portion side;
A drainage sleeve installation jig comprising a through hole for attaching a biting member, which is provided inside the curved portion and is fixed in a state where the mold contact surface is in contact with the mold surface. Ingredients. The curved portion has a tapered shape that decreases in diameter as the distance from the flange portion side increases.
The locking portion has elasticity, and the length from the outer peripheral surface of the curved portion to the claw is slightly longer than the thickness of the drainage sleeve,
A column that connects both ends of the curved portion on the opening side and a second column that is perpendicular to the column and connects the central portion of the curved portion and the central portion of the column,
2. The drainage sleeve installation jig according to claim 1, wherein the through hole is provided in an inner surface of the curved portion and the second support column.

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