JPH0412205Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Conventional technology and its problems> Currently, concrete buildings are constructed with reinforcing bars,
The concrete is poured into the concrete by surrounding it with formwork or panels, but since it is difficult to transport the concrete to the second and third floors, it is pumped from the ground. is the current situation.

In this type of pumping, the proportion of water is increased to make it easier to pump, so it takes a longer time for the poured concrete to harden than normal concrete, and the concrete becomes weaker after a long period of time. It is also a contributing factor to the

<Means for Solving the Problems> In order to solve the above problems, the present invention uses appropriate means to provide drainage devices at required locations on the formwork or panels. an inner cylindrical body having a required number of drainage holes penetrating through the closed end face of the distal end and having a flange on the periphery of the distal end face; and a water absorbent body such as a sponge that is replaceably housed in the inner cylindrical body. and a member that is externally fitted onto the inner cylinder from its proximal side, has an open tip and a flange on its peripheral edge, and has a required number of water extraction holes penetrating the proximal closed end surface. The inner cylinder is inserted from the base end of the inner cylinder into a mounting hole penetrating the panel from the inside and protrudes outward, and the outer cylinder is inserted from the base end of the inner cylinder. Fits outward from the tip side, and also fits inside.
This is a concrete body water draining device constructed such that both outer cylinders are fixed together by necessary means.

Furthermore, among the temporary frames used when constructing concrete, the large steel ones are generally called formwork, and the small and lightweight ones made of plywood are called panels, but in this specification, both of these are referred to as panels. Make it.

<Example and operation> The concrete body water removal device according to the present invention is as follows:
A detailed description will be given with reference to the embodiments shown in the drawings.

FIG. 1 is a perspective view of the inner cylindrical body 1 of the present invention, which is a cylindrical body with an open base end inserted into a mounting hole formed through a panel, and a closed end face 2 on the distal side of the inner cylindrical body 1.
Drain holes 3, 3, .
Grooves 6, 6 of a required length are opened on the outer circumferential surface of the inner cylinder 1 so as to divide the opening peripheral edge 5 at the proximal end into two, and the respective terminal ends are bent at right angles in one direction. This is to open the mooring grooves 7, 7.

Next, FIG. 2 is a perspective view of an outer cylindrical body 8 having an open end that fits into the opening peripheral portion 5 at the proximal end of the inner cylindrical body 1. Peripheral part 9
A flange 10 for clamping the panel is provided around the flange 10, and water outlet holes 12, 12, .

When the distal opening peripheral edge 9 of the outer cylinder 8 is fitted onto the proximal opening peripheral edge 5 of the inner cylinder 1, the inner cylinder 1 and the outer cylinder 8 are fitted into each other. , pin-shaped protrusions 13 are provided on the inner circumferential surface of the outer cylinder body 8 for fixation at positions corresponding to the grooves 6 opened on the outer circumferential surface of the inner cylinder body 1, respectively.
13 are provided protrudingly, and the respective protrusions 13, 13
When it is externally fitted, it is fitted into the groove 6 and further moored to mooring grooves 7, 7 formed at the terminal ends thereof, thereby being fixed.

Therefore, as shown in Fig. 3 and Fig. 4, first insert the panel A into the mounting hole B made through the panel A.
The inner cylindrical body 1 is inserted from the inside of the tube. Then, a water-absorbing material 14 such as a sponge is stored in the inner cylinder 1 through the opening peripheral edge 5 of the inner cylinder 1 that protrudes outside of the panel A, and then the outer cylinder 8 is inserted into the inner cylinder. The body 1 is externally fitted and fixed, and the panel A
are sandwiched between the flanges 4 and 10 of the inner and outer cylinders 1 and 8.

Note that the above-mentioned method of fixing the inner and outer cylindrical bodies 1 and 8 may also be a screw type, but in this case, concrete may enter between them and cause problems when removing them. The fixation method described above is the most preferred.

In addition, a water outlet hole 12, which is bored in the outer cylinder 8,
12, . . . are drain holes 3, 3,
Unlike the hole that only allows water to pass through, as shown in..., this hole is for draining water to the outside of panel A, and the diameter of the hole is the same as the drain holes 3, 3, ... of the inner cylinder 1 above. It is not necessary to make the diameter larger; rather, it is preferable to use a larger diameter.

In the present invention having the above configuration, as shown in FIGS. 5 and 6, the formed panels A,
Mounting holes B, B, ... provided on each surface of A, ...
The concrete body water draining tool C according to the present invention is used for...
It is installed by inserting it, and when installing it,
As shown in FIG. 6, it is desirable that the mounting positions of the concrete body water draining tools C be shifted from each other. This is to prevent the water pressure of the concrete D within the formwork formed by the panels A, A, . . . from being dispersed.

Concrete D was then pumped into the formwork above.
The pressure from the inside causes moisture to pass through the drain holes 3, 3, ... bored in the inner cylindrical body 1,
The water absorbed into the water absorbent body 14 in the inner cylindrical body 1 passes through the water outlet holes 12, 12, . ,...is water flowing outward.

Next, Fig. 7 is an explanatory diagram showing another example of water drainage when using a metal panel, in which water drainage holes 15 are bored in a thin metal panel A' and the same A cylindrical body 16 with open ends is welded to surround the drain hole 15 by welding or the like. Then, the water absorbing body 14 is housed in the same cylindrical body 16, and the distal end is opened, and the water outlet holes 17, 17,
. . . is externally fitted and fixed by an outer cylindrical body 18 having holes.

<Effects of the invention> As described above, according to the invention, excess water is drained from the concrete that is pumped into the panel formwork, thereby speeding up the solidification time of the concrete.
It also has the effect of maintaining the strength of concrete for many years. In addition, it can be easily attached to and removed from the panel, and it can also be easily replaced without damaging the strength of the panel itself.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the inner cylinder, which is a part of the present invention;
Figure 2 is a perspective view of the outer cylinder which is a part of the present invention, Figures 3 and 4 are explanatory diagrams showing the installed state of the present invention, and Figures 5 and 6 are respectively illustrations of the use of the present invention. FIG. 7 is an explanatory diagram showing another application example of the concrete body water draining tool used for metal panels. In the figure, 1...inner cylinder body, 2...distal side closed end surface,
3,3,……drain hole, 4……flange, 5……
Opening periphery, 8... Outer cylinder body, 9... Opening periphery,
10... Flange portion, 11... Proximal side closed end surface, 12,
12,...Water outlet hole, 14...Water absorber.

Claims (1)

[Scope of utility model registration request] An inner cylindrical body having an open base end, a required number of drainage holes through a closed end face of the distal end, and a flange on the periphery of the distal end face, and a sponge that is replaceably housed in the inner cylindrical body. A member that is externally fitted onto the inner cylindrical body from its proximal side, has an open tip and a flange on its peripheral edge, and has a required number of water absorbers on its proximal closed end surface. The inner cylinder is inserted from the base end of the inner cylinder into the mounting hole penetrated through the panel and protrudes outward. A concrete body water draining device having a structure in which the outer cylinder is fitted from the tip side, and both the inner and outer cylinders are fixed by required means.