JPH0422969Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to an apparatus for manufacturing wave-dissipating blocks.

Conventional technology Conventionally, wave dissipating blocks have been constructed by placing concrete around a pipe that forms a through hole, and in this manufacturing process, a formwork is provided around the pipe, and concrete is placed between the formwork and the pipe. I filled it up and went.

Problems to be solved by the invention However, according to the above-mentioned conventional configuration, the formwork and the pipe are not directly fixed, so the pressure of the filled concrete creates a gap between the end of the pipe and the formwork. There was a problem that concrete leaked into the pipe from this gap.

The present invention is intended to solve the above-mentioned problems, and aims to provide an apparatus for manufacturing a wave-dissipating block that prevents concrete from leaking.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a formwork arranged around a pipe forming a through hole, and a formwork arranged around a pipe forming a through hole, and a formwork arranged around a pipe in the circumferential direction of the pipe. a sealing material disposed along the pipe and sealing between the end of the pipe and the formwork;
The structure includes a pressing device that urges this sealing material in the radial direction of the pipe.

Function In the above configuration, the sealing material urged by the pressing device presses the mold and the tube to seal between the end of the tube and the mold. Therefore, even if the gap between the formwork and the end of the pipe expands due to the pressure of the concrete filled around the pipe inside the formwork, the sealing material prevents the concrete from leaking.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. In FIG. 1, a tube 2 forming a through hole 1 is shown.
A formwork 3 is placed surrounding it. And tube 2
A sealing material 4 is arranged along the circumferential direction of the tube 2 on the inner periphery of the end portion of the tube 2, and a push ring 5 that expands and contracts in the radial direction of the tube is arranged on the inner periphery of this sealing material 4. . A turnbuckle 6 is arranged inside the press ring 5. The turnbuckle 6 rotates the body 7 to move the arm 8 forward and backward in the radial direction, thereby expanding and contracting the push ring 5 connected by the arm 8 in the radial direction of the tube. Then, the sealing material 4 is
A pressing device 9 is formed which urges the tube in the radial direction.

Hereinafter, the effects of the above configuration will be explained. First, the turnbuckle 6 is expanded in the radial direction of the tube, and the sealing material 4 is urged in the radial direction of the tube via the press ring 5. Then, the sealing material 4 is pressed across the mold 3 and the tube 2 to seal the end of the tube 2 and the mold 3. Therefore, even if the gap between the formwork 3 and the end of the pipe 2 widens due to the pressure of the concrete 10 filled around the pipe 2 inside the formwork 3, the sealing material 4 This prevents the concrete 10 from leaking.

Next, FIG. 2 shows another embodiment of the present invention, and members that perform the same functions as those in the previous embodiment are given the same numbers and their explanations will be omitted. The configuration different from the previous embodiment is that the pressing device 11
is formed by a push ring 5 and a push bolt 12, and the push bolt 12 is supported by being screwed into a support pedestal 13 provided on the formwork 3.

According to this configuration, the push bolt 12 is screwed into the support pedestal 13 to protrude in the radial direction of the pipe, and the sealing material 4 is biased in the radial direction of the pipe via the pushing ring 5. The end of the tube 2 and the formwork 3 are sealed. This prevents the concrete 10 from leaking.

Further, FIG. 3 shows still another embodiment of the present invention, and in this configuration, the pressing device 2
1 is formed of a push ring 22 that is disposed so as to fit inside the pipe 2, and a push ring extension bolt 23 that moves the push ring 22 in and out in the direction of the tube axis. The push ring extension/retraction bolt 23 is screwed onto and supported by a support arm 24, and the formwork 3 and the pipe 2 are connected by fixing bolts 25.

In this configuration, the push ring extension/retraction bolt 23 is screwed with the support arm 24 to project in the tube axis direction, the push ring 22 is inserted into the tube 2, and the sealing material 4 is applied on the outer peripheral surface of the push ring 22. It is brought into pressure contact with the tube 2 to seal the space between the end of the tube 2 and the formwork 3. This prevents the concrete 10 from leaking.

Effects of the invention As described above, according to the invention, the space between the end of the pipe and the formwork is sealed by the sealing material, and leakage of concrete is prevented.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is an overall configuration diagram showing another embodiment of the present invention;
FIG. 3 is an overall configuration diagram showing still another embodiment of the present invention. 1...Through hole, 2...Pipe, 3...Formwork, 4...
Sealing material, 9, 11, 21... Pressing device, 10...
…concrete.

Claims (1)

[Scope of utility model registration request] A formwork arranged around a pipe forming a through hole, and a seal arranged along the circumferential direction of the pipe on the inner periphery of the end of the pipe to seal between the end of the pipe and the formwork. 1. A manufacturing device for a wave-dissipating block, comprising: a sealing material; and a pressing device for urging the sealing material in the radial direction of a tube.