JP3568429B2 - Piping block structure for snow melting - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a snow-melting piping block structure for sprinkling groundwater on snow falling on a road surface such as a road or a parking lot to melt the snow, the piping blocks being buried on the road surface being connected by a connecting pipe. It is about.
[0002]
[Prior art]
Conventionally, connection of this type of piping block has been performed, for example, as shown in FIG. That is, as shown in the figure, the receiving ends 22 of the short pipes 23 obtained by simply cutting the lengths of the water pipes 21 of the pipe blocks 20 laid in series from the long pipes are received. It was connected by inserting it into the mouth 22.
[0003]
However, in such a connection structure, the short pipe 23 obtained by the cutting has the same diameter from one end to the other end and is slightly smaller than the inner peripheral diameter of the seal packing 25 provided around the inner peripheral surface of the receiving port 22. Due to the large diameter, the seal packing 25 is easily damaged during the insertion operation.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a novel snow melting pipe block structure having a pipe block connection structure which is extremely suitable for solving the above problems.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a pipe block structure for snow melting according to the present invention includes, at both ends, receiving ports 2 having seal packings 1 provided on the inner surface thereof, and water spray nozzles 3 at a plurality of locations on the way through branch pipes 4. The water supply pipe 5 is set in a state in which the receiving ports 2 at both ends of the water supply pipe 5 are opened to both end faces of the long concrete block 6 with respect to the long concrete block 6, and the water supply port 7 of each watering nozzle 3 is long. A large number of piping blocks 8 buried in a state of being opened on the upper surface of the concrete block 6 are formed. Separately from this, the end portion 11 of the metal short pipe 9 is formed as the outer peripheral surface of the portion 11 faces the tip. The diameter is reduced in such a manner that it gradually exhibits a gentle curve and becomes narrower, and the inner peripheral surface of the distal end portion 13 of the reduced diameter portion 12 is cut off to form a surface substantially parallel to the central axis of the short pipe 9 by processing. Cut the inner diameter of the tip 13 A plurality of connecting pipes 14 having a diameter larger than that before the dropping process are formed, and the end portions 15 of these connecting pipes 14 are inserted into the mutually facing receiving ports 2 of the adjacent piping blocks 8 to connect the connecting pipes 14. The outer peripheral surface of the part near the end of the seal packing 1 and the inner peripheral surface of the seal packing 1 are pressed in a watertight manner, and in this crimped state, the joint material 16 is filled in the gap between the adjacent piping blocks 8. Is what you do.
[0006]
【Example】
In the embodiment shown in FIG. 1, a seal packing 1 made of styrene-butadiene rubber is provided on the inner surface thereof, and a receiving port 2 is integrally extended at both ends. A water supply pipe 5 made of a vinyl chloride pipe provided with a long concrete block 6 is connected to a long concrete block 6, and the receiving ports 2 at both ends of the water supply pipe 5 are opened to both end faces of the long concrete block 6 and each watering is performed. A large number of buried piping blocks 8 are configured so that the water spout 7 of the nozzle 3 is open to the upper surface of the long concrete block 6.
[0007]
In addition, apart from the piping block 8, the end portions 11 of the short tube 9 obtained by cutting the long tube made of stainless steel into a gradual curve gradually as the outer peripheral surface of the portion 11 is directed toward the tip. The inner diameter of the tip 13 of the reduced diameter portion 12 is cut off to form a surface substantially parallel to the central axis of the short pipe 9 by processing, and the inner diameter of the tip 13 is reduced. A large number of connecting pipes 14 are formed by shaving the connecting pipes to have a diameter larger than that before processing, and a pair of left and right stoppers 16 for enabling visual confirmation of the insertion amount on the outer surface at the center of these connecting pipes 14 is provided. To protrude.
[0008]
Both ends 15 of these connection pipes 14 are inserted into the mutually facing receptacles 2 of the adjacent piping blocks 8 so that the outer peripheral surface of the connection pipe 14 near both ends and the inner peripheral surface of the seal packing 1 are made watertight. In a crimped state, joints 16 such as elastite, putty rubber and cement milk are filled in gaps between the adjacent piping blocks 8 in this crimped state, so that the piping blocks are connected to each other.
[0009]
Next, the construction of the piping block 8 will be described.
First, a buried groove for laying the piping block 8 is excavated on the road surface, and the bottom surface of the buried groove is tamped and flattened, and then a plurality of the piping blocks 8 are arranged in a row in which the end faces of the piping blocks 8 face each other. The two ends of the connecting pipe 14 are inserted into the receiving ports 2 of the water pipes 5 of the adjacent piping blocks 8, and the outer peripheral surface of the portion near the end of the connecting pipe 14 and the inside of the seal packing 1 are arranged. The water supply pipes 5 of the two pipe blocks 8 are connected to each other by bringing the peripheral surface into pressure contact, and the joint material 13 is filled in the gap between the end faces of the connected pipe blocks 8, and then the buried grooves are formed. After backfilling, pavement work such as asphalt is performed to complete construction work.
[0010]
5 to 8 show another embodiment of a connecting pipe 14 in which an intermediate portion of the connecting pipe 14 connecting the piping blocks 8 is bent or branched, and is embedded in a pipe block. It is a convenient shape to use where the groove is bent or branched.
[0011]
【The invention's effect】
The pipe block structure for snow melting according to claim 1 of the present invention is provided with a water inlet pipe having seal ports 1 provided on the inner surface at both ends and water sprinkling nozzles 3 at a plurality of locations on the way through branch pipes 4. 5 with respect to the long concrete block 6, a state in which the receiving ports 2 at both ends of the water pipe 5 are open to both end faces of the long concrete block 6, and the sprinkling port 7 of each watering nozzle 3 is connected to the long concrete block 6. A large number of piping blocks 8 are buried in a state of being opened to the upper surface of the metal tube, and separately from this, the both end portions 11 of the metal short pipe 9 are gradually gradually reduced as the outer peripheral surface of the same portion 11 is directed to the tip. The diameter is reduced in a shape that presents a sharp curve and becomes narrow, and the inner peripheral surface of the distal end portion 13 of the reduced diameter portion 12 is cut off to form a surface substantially parallel to the central axis of the short pipe 9. 13 before cutting A large number of connecting pipes 14 having large diameters are formed, and the end portions 15 of these connecting pipes 14 are inserted into the mutually facing receptacles 2 of the adjacent piping blocks 8 so that the end portions of the connecting pipes 14 are connected. The outer peripheral surface of the shifted portion and the inner peripheral surface of the seal packing 1 are pressed in a watertight manner, and in this crimped state, the joint material 16 is filled in the gap between the adjacent piping blocks 8. Of the end portion 11 of the seal packing 1 is reduced in diameter so that the outer peripheral surface of the same portion 11 gradually shows a gentle curve and becomes thinner toward the front end. The diameter is smaller than the diameter of the seal packing 1 so that it can easily pass through the inside of the seal packing 1. This is very convenient for avoiding the above-mentioned problem. Inside the short pipe 9 by shaving Since the inner diameter of the front end portion 13 is reduced by forming the surface in a direction substantially parallel to the axis so as to be larger than that before the processing, the reduced diameter portion may be subjected to the reduced diameter processing. It is not so likely to interfere with running water, and has an excellent effect that there is very little risk of causing a reduction in the maximum possible amount of running water,
[0012]
Further, the pipe block structure for snow melting according to the second aspect is characterized in that the middle part of the connecting pipe 14 is bent or branched, so that in addition to the effect of the first aspect of the present invention, roads and parking are provided. There is an advantage that it is convenient to change the arrangement direction of the piping or to branch according to the condition of the road surface such as the parking lot, and to facilitate the construction of the piping work.
[0013]
Further, in the pipe block structure for melting snow according to claim 3, since the connecting pipe 14 is made of stainless steel, in addition to the effects of the invention according to claim 1 or claim 2, there is a concern that the connecting portion may be corroded by rust. Not a preferred one.
[Brief description of the drawings]
FIG. 1 is a sectional view showing an embodiment of the present invention.
FIG. 2 is an enlarged vertical sectional view of a main part.
FIG. 3 is a partially cutaway front view showing a connecting pipe.
FIG. 4 is a cross-sectional view of a main part in the same manner.
FIG. 5 is a partially cutaway front view showing another connecting pipe.
FIG. 6 is a partially cutaway front view showing another connecting pipe.
FIG. 7 is a partially cutaway front view showing another connecting pipe.
FIG. 8 is a partially cutaway front view showing another connecting pipe.
FIG. 9 is a sectional view of a main part showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seal packing 2 Reception port 3 Sprinkler nozzle 4 Branch pipe 5 Water pipe 6 Long concrete block 7 Sprinkler port 8 Piping block 9 Short pipe 11 Both ends 12 Reduced diameter section 13 Tip 14 Connecting pipe 15 Both ends 16 Stopper 17 Joint material 18 Shaved part

Claims (3)

A water pipe 5 provided with receiving ports 2 provided on both sides of a seal packing 1 on its inner surface and watering nozzles 3 at a plurality of points in the middle through branch pipes 4 is provided to a long concrete block 6. A large number of piping blocks 8 buried in such a state that the receiving ports 2 at both ends of the concrete block 6 are open to both end faces of the long concrete block 6 and the water spray port 7 of each water spray nozzle 3 is open to the upper surface of the long concrete block 6. Separately from this, the end portions 11 of the metal short pipe 9 are reduced in diameter so that the outer peripheral surface of the same portion 11 gradually shows a gentle curve and becomes thinner toward the front end. The inner peripheral surface of the distal end portion 13 of the diameter portion 12 is cut off to form a surface substantially parallel to the central axis of the short pipe 9 by processing, and the inner diameter of the distal end portion 13 is cut off to make the inner diameter larger than before processing. Of the connecting pipes 14 The end 15 of the connecting pipe 14 is inserted into the mutually facing receptacle 2 of the adjacent piping block 8, and the outer peripheral face of the connecting pipe 14 near the end and the inner peripheral face of the seal packing 1 are water-tightly pressed. And a joint material 16 is filled in a gap between adjacent piping blocks 8 in this crimped state. The piping block structure for snow melting according to claim 1, wherein the connecting pipe (14) is bent or branched at an intermediate portion. 3. The snow-melting piping block structure according to claim 1, wherein the connecting pipe is made of stainless steel.

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