JP3446201B2 - Snowmelt block and connection structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow-dissipating block for sprinkling water on roads and the like and a structure for connecting the blocks.

[0002]

Conventionally, when snow is removed from a road or the like, a road is excavated and a water supply pipe is provided, a branch pipe is connected to the water supply pipe, and a water spouting port is provided at the tip of the branch pipe. On-site construction is known in which backfilling is performed after the watering nozzle is installed.

However, such on-site construction has a problem that it takes time to perform piping and excavation at the site.

In view of this, in Japanese Utility Model Publication No. 56-15215, a water pipe is formed in the length direction of a rectangular parallelepiped block, and a nozzle branch pipe is projected downward with a proper gap provided by connecting to this water pipe. A fountain in which the fountain nozzle provided on the nozzle branch pipe is exposed on the upper surface of the block and concave grooves are provided at appropriate intervals in the width direction of the bottom surface of the block, and vertical holes penetrating to the upper surface of the block are formed in this concave groove. A block with a nozzle (claim for utility model registration in the gazette) has been proposed. In this fountain nozzle block, a convex portion is formed by tapering on one side, and a concave portion is formed on the opposite side so that the convex portion just fits. Is formed so as to widen toward the end, and the convex portion and the concave portion are fitted to each other with a packing or the like interposed therebetween, and the water pipes are connected to each other (the first column of the gazette, the lowermost row-
The second column, fourth line) is connected.

By the way, in this type of sprinkling of snow,
An alternate water spray method is used to remove snow over a wide area using a small number of pumps. For example, as shown in FIG.
101 is connected to two lines 102, 102A, and these lines 10
2, 102A are connected to a water supply pipe 103 provided with a water spray nozzle, and by alternately supplying water to one and the other pipe lines 102, 102A, a single pump 101 can spray water at a distance approximately twice as long. It is possible. In addition, as shown in FIG. 10, the left and right two lines of pipelines 102B and 102C are arranged in parallel, and these pipelines 102
Sprinkling nozzles are alternately arranged at B and 102C. For example, when connecting a 5.5-meter water pipe, a water pipe 103 with a water nozzle and a water pipe 103A without a water nozzle are provided.
Are alternately arranged, and the water supply pipes 103, 103A are arranged side by side in the one and the other pipe lines 102B, 102C, and the one and the other pipe lines 10
One pump by alternately supplying water to 2B and 102C
Using 101, it is possible to sprinkle water about twice as long.

However, in the system as shown in FIG.
Even if water is sent to one side for a predetermined time and then to the other side, if there is a large amount of snow in the meantime, the water supply may switch before the other can be completely extinguished, and effective snow removal cannot be performed. There is.

On the other hand, in the case of FIG. 10 described above, since the watering is switched at every predetermined interval, it is excellent in the snow removing effect. However, in order to construct the structure shown in FIG. 10 on site, two water supply pipes 103 and 103A must be buried side by side, which causes a problem that the excavation area becomes large and the construction becomes long. Further, if the rectangular parallelepiped blocks of the above Japanese Utility Model Publication No. 56-15215 are embedded side by side for the alternate watering shown in FIG. 10, the upper surface of the rectangular parallelepiped blocks is exposed with a double width, so that the center line of the road or the like is exposed. Not suitable for construction. Furthermore, in the block of Japanese Utility Model Publication No. 56-15215, since a nozzle branch pipe is erected at the center of the upper part of the rectangular parallelepiped block and a fountain nozzle is provided on the upper part of this nozzle branch pipe, the fountain nozzle is repeatedly subjected to wheel load or the like. When subjected to vibration, a load and vibration are repeatedly applied to the connecting portion between the nozzle branch pipe and the water pipe located directly below, so that the connecting portion requires a predetermined strength. On the other hand, in the case of on-site construction, branch pipes are erected on each water pipe, and water spray nozzles are attached to these branch pipes. In addition, the top surface width of the concrete part becomes wider, and at the road center line location where the excavation width is limited,
Cannot be constructed.

Therefore, according to the present invention, it is possible to efficiently carry out the alternate watering, the construction at the site is easy, and the exposed portion on the road can be reduced by reducing the upper surface portion. It is an object of the present invention to provide a block for use in snow, and an object of the present invention is to provide a structure for connecting blocks for snow-melting that can reliably connect the blocks to each other.

[0009]

According to a first aspect of the present invention, a pair of left and right water pipes are embedded in an elongated block body, and both ends of the water pipes are opened to both end faces in the length direction of the block body. the block body is formed in a narrow top surface portion than its lower portion, a plurality of water spray in the widthwise center of the upper surface portion nozzle
While juxtaposed Le in a longitudinal direction of the block body, before
The upper surface of serial watering nozzle and substantially flush with the upper surface portion, the said <br/> sprinkler nozzle and the water supply pipe connected by a branch pipe, wherein
The branch pipe connects a curved pipe to the center side of the pair of left and right water supply pipes.
At the top of this curved tube,
The vertical pipe provided on the vertical pipe is connected to the upper end of the vertical pipe.
And the water spray nozzle is connected to the pair of left and right
It is connected to the water pipes alternately .

According to the structure of the first aspect, since the block main body has the pair of water supply pipes, alternate water spraying can be performed by switching the water supply to the pair of water supply pipes. Further, since the upper surface of the block body is formed to be narrow, the exposed portion of concrete on the road can be made small, which is suitable for construction on the center line portion of the road. Further, by connecting a plurality of snow-dissipating blocks so that the water supply pipes are lined up in a row, and by alternately sprinkling water on the pair of water supply pipes, it is possible to perform watering alternately from the watering ports arranged in the length direction. . In addition, wheel load on the water spray nozzle
Even if it receives a load, its load and vibration will cause
Since it joins the reed part, the connection point between the branch pipe and the water supply pipe
Can be reduced.

According to a second aspect of the present invention, a pair of left and right water pipes are embedded in an elongated block main body, and both ends of the water pipes are opened to both end faces in the length direction of the block main body. forms a narrow top surface portion than its lower portion, said plurality of nozzle nozzles in the width direction center of the upper surface portion
The blocks are arranged side by side in the length direction and
The upper surface of the nozzle is substantially flush with the upper surface portion, said water spray nozzle
Le and with said water pipe connected by a branch pipe, the branch pipe
When connecting a curved pipe to the center side of the pair of left and right water pipes,
Both are installed in the center of the block body at the upper end of this curved pipe
Connected vertical pipe, and connect the water spray nozzle to the upper end of this vertical pipe.
Continuing, the water spray nozzle of the pair of left and right water pipe
It is connected to one of the water pipes .

According to the structure of claim 2, the block book
Since there is a pair of water pipes in the body,
Alternating watering can be performed by switching water
It Also, the upper surface of the block body is formed to be narrow.
To reduce the exposed area of concrete from the road
It is suitable for construction on the center line of the road.
Will be Further, by connecting a plurality of snow-dissipating blocks so that the water supply pipes are lined up in a row, and by alternately sprinkling water on the pair of water supply pipes, it is possible to perform watering alternately from the watering ports arranged in the length direction. . In addition, wheel load on the water spray nozzle
Even if it receives a load, its load and vibration will cause
Since it joins the reed part, the connection point between the branch pipe and the water supply pipe
Can be reduced.

According to the invention of claim 3 , female pipes are provided at both ends of the water supply pipe, and the female pipes of adjacent block bodies are connected to each other by insertion pipes for inserting both sides into these male pipes. Is.

According to the third aspect of the present invention, the snow-melting block is connected at two locations by a pair of water pipes. By connecting the female cylinders to each other by an insertion pipe, the pair of water pipes can be connected. It is possible to absorb the dimensional error in the position of the female cylinder portion, and it is possible to easily connect the snow removal block.
Further, since both ends of the snow erasing block are female cylinder portions, the snow erasing block can be connected regardless of which direction the ends are facing.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the accompanying drawings.
An example is shown, and as shown in FIG.
In the left and right sides of a long block body 2 made of concrete, water pipes 3L and 3R made of steel or the like and having the same diameter are embedded. The block body 1 has a flat upper surface portion 4 and a lower surface portion 5, and vertical side surface portions 6 which are substantially vertical to the left and right sides of the lower surface portion 5 are provided, and the upper portion of the vertical side surface portion 6 and the upper surface portion 4 are provided.
Are connected by an inclined side surface portion 7, and the upper surface portion 4 and the lower surface portion 5 are formed in parallel. Also, the water pipes 3L, 3
A plurality of frame-shaped reinforcing bars 8 are embedded in the block main body 1 so as to surround R, and a plurality of longitudinal reinforcing bars 8A connecting the plurality of frame-shaped reinforcing bars 8 are embedded. The frame-shaped reinforcing bar 8 is formed in a frame shape parallel to the upper surface portion 4, the lower surface portion 5, the vertical side surface portion 6 and the inclined side surface portion 7.

At both ends of the water supply pipes 3L, 3R, female cylinder parts 11 having a larger inner diameter than the water supply pipes 3L, 3R are provided. The female cylinder parts 11 extend from the end face 2A in the longitudinal direction of the block body 2. The tip is slightly protruded, and a tapered guide portion 12 is formed inside the tip to expand toward the tip side. Further, a positioning step portion 13 is formed inside the base end of the female cylinder portion 11. An insertion pipe 14 is inserted and connected to the water supply pipes 3L and 3R of the snow-melting blocks 1 that are adjacent to each other in the length direction, and the outer diameter of the insertion pipe 14 is smaller than the inner diameter of the female cylinder portion 11. Two circumferential grooves 15 are provided on both sides of the outer periphery of the insertion tube 14, and an elastic water blocking member 16 such as an O-ring is provided in each circumferential groove 15.
Is provided, and the elastic water blocking member 16 is pressed against the inner circumference of the female cylinder portion 11. The length of the insertion tube 14 is approximately twice the length from the tip of the female tube portion 11 to the positioning step portion 13.

Branch pipes 21 are alternately connected to the water supply pipes 3L and 3R. This branch pipe 21 is the water supply pipe 3
L, with connecting curved pipe 21 B toward the center of the 3R, connect the vertical pipe 21 A to the upper end of the bent tube 21 B, the vertical pipe 21 A is provided at the center of the block body 2, the longitudinal tube 21 a top end of the mouth watering serving water spray nozzle 22 connected to, this sprinkler nozzle 22
Is located in the center of the upper surface 4 in the width direction, and
The upper surface of the is substantially flush with the upper surface portion 4. Further, in this example, one block main body 2 has an even number of watering nozzles.
22 is provided, the sprinkling nozzles 22, 22 adjacent to each other in the length direction are arranged at equal intervals H, and the interval from the tip of the female cylinder portion 11 to the sprinkling nozzle 22 is approximately one half of the interval H. I am trying.

The method of using the snow-melting block 1 will now be described. The road R is excavated to form an excavation hole 31, and a concrete base 32 is formed at the bottom of the excavation hole 31 with cast-in-place concrete. Finish the top surface of the concrete base 32 flat. A plurality of snow removing blocks 1, 1 ... Are arranged on the concrete base 32, and adjacent snow removing blocks 1, 1 are connected. In this connection, the insertion tube 14 is inserted into the female cylinder portions 11, 11 adjacent to each other in the length direction to make the connection. In this way, by inserting both sides of the insertion pipe 14 into the female cylindrical portions 11 and 11 at the connection points of the water supply pipes 3L and 3R, it is possible to absorb dimensional errors such as the intervals between the water supply pipes 3L and 3R on both sides. Therefore, the snow-melting blocks 1 and 1 can be connected smoothly. Since the tip of the female tube portion 11 slightly projects from the end surface 2A, when the tips of the female tube portions 11, 11 adjacent to each other in the length direction are put together, the end surfaces 2A, 2A
A gap is formed therebetween, and the joint material 23 having elasticity is filled in the gap. Further, a snow-melting liquid pressure-feeding means 34 such as a pump is connected to the water supply pipes 3L and 3R via a switching valve 33. And
The excavation hole 31 is backfilled with a backfill material 35 such as crushed stone or concrete, and the upper part is backfilled with a paving material 36 such as asphalt except for the upper surface portion 4 of the block body 1. Therefore, only the upper surface portion 4 is exposed on the road R, and the rest can be restored as a pavement surface.

After burying the snow-melting block 1,
By operating the switching valve 33, the pair of water supply pipes 3 by the pressure feeding means 34
Water is pumped to L and 3R every predetermined time. In this way, when water is pumped to the one water pipe 3L, water is sprinkled from the pumping means 34 from the even-numbered sprinkling nozzles 22, and the switching valve 33
And the water is sent to the other water supply pipe 3R, water is sprayed from the pressure feed means 34 from the odd-numbered water spray nozzles 22. In this way, since water is sprayed alternately from the water spray nozzles 22, 22 that are adjacent to each other in the length direction, it is possible to efficiently remove snow in a relatively long range by the pressure-feeding means 34 such as a common pump.

As described above, in this embodiment, the pair of left and right water pipes 3 are provided in the elongated block main body 2 according to claim 1.
L and 3R are buried, and both ends of these water supply pipes 3L and 3R are opened to both lengthwise end faces 2A and 2A of the block main body 2, and the block main body 2 has an upper surface portion 4 from a lower surface portion 5 which is the lower side thereof. width is formed narrower, arranged a plurality of watering nozzle 22 in the width direction center of the upper surface portion 4 of the block body 2 in the longitudinal direction then co
In addition, the upper surface of the water spray nozzle 22 is substantially flush with the upper surface portion 4, and these water spray nozzles 22 and the water supply pipes 3L and 3R are connected by a branch pipe 21 , and the branch pipe 21 includes a pair of left and right water supply pipes 3L and 3R.
Connect the curved tube 21B to the center side and
Connect the vertical pipe 21A provided at the center of the block body 2 to the end,
The water spray nozzle 22 is connected to the upper end of this vertical pipe 21A,
The water nozzle 22 is alternately connected to the pair of left and right water supply pipes 3L and 3R.
Therefore, a pair of water pipes 3 are provided in the block body 2.
By having L and 3R and switching water supply to the left and right water supply pipes 3L and 3R, alternate water sprinkling can be performed. In addition, the concrete exposed portion becomes large in the on-site construction and the conventional block, but in this snow block 1 made of precast concrete, since the upper surface portion 4 of the block body 2 is formed to be narrow, the road R The exposed concrete portion can be made small, and it is suitable for construction on the center line portion of the road R or the like. Also, the water pipe 3
The plurality of snow-dissipating blocks 1, 1 ... Are connected so that L and 3R are lined up in a line, and water is sprayed alternately on the left and right water pipes 3L and 3R, thereby sprinkling nozzles 2 lined up in the length direction
Water can be sprinkled alternately from 2, 22 ..., which enables efficient snow removal. Furthermore, the water spray nozzle 22 the water supply pipe 3L by curved pipe 21 B, since connected to just beside the 3R, be subjected to such wheel load watering nozzle 22, the bottom of the concrete portion of the load and vibration is bent pipe 21 B Since it is added, it is possible to reduce the influence on the connection portion between the branch pipe 21 and the water supply pipes 3L and 3R .

As described above, in this embodiment, the third aspect
Corresponding to the above, female tube portions 11 and 11 are provided at both ends of the water pipes 3L and 3R, and female tube portions 11 and 11 of the adjacent block bodies 1 and 1 are inserted into these male tube portions 11 and 11 on both sides. Since the snow pipe block 1 is connected by the insertion pipe 14, the snow removal block 1 is connected at two positions of the left and right water supply pipes 3L, 3R, but by connecting the female tubular portions 11, 11 to each other by the insertion pipe 14. The dimensional error of the female cylinder portions 11, 11 of the left and right water supply pipes 3L, 3R can be absorbed, and the snow-melting block 1 can be easily connected. Further, since both ends of the water supply pipes 3L, 3R are the female cylinder portions 11, the snow-melting block 1 can be connected in either direction, and the on-site construction becomes easy.

Further, as an effect of the embodiment , the snow removal block 1 has an even number of water spray nozzles 22, and the water supply pipes 3L and 3R, the branch pipes 21 and the water spray nozzles 22 are point-symmetric with respect to the center of the plane. Therefore, it is possible to connect the snow removal block 1 in a predetermined state regardless of which direction the length direction of the snow removal block 1 is directed.

6 to 8 show a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The branch pipe 21 is provided only on one of the water supply pipes 3R. Then, at the site, as shown in FIG. 8, the water supply pipes 3L and 3R of the adjacent snow-melting blocks 1 and 1 are connected left and right.

When water is alternately supplied by switching the switching valve 33 in the snow-melting blocks 1, 1 provided on the road R in this way, one of the snow-melting blocks 1, 1 adjacent in the longitudinal direction is When water is sprayed from all the water spray nozzles 22 and the water supply is switched, water is sprayed from all the other water spray nozzles 22 and alternate water spray is performed for each of the adjacent snow-melting blocks 1 and 1.

[0025] In this embodiment Thus, in response to claim 3, the same effects as the first embodiment, to provide an advantage, also in this example, corresponding to claim 2, elongated block
A pair of left and right water pipes 3L and 3R are embedded in the main body 2, and
From both sides of the water pipes 3L and 3R in the length direction of the block body 2
Open to both end faces 2A, 2A, the block body 2
The upper surface 4 is formed narrower than the lower surface 5 which is the side
A plurality of water spray nozzles 22 are provided at the center of the width direction of the portion 4 as a block body.
2 side-by-side in the length direction, and
It is almost flush with the upper surface part 4, and these sprinkler nozzles 22 and water pipes
3L and 3R are connected by a branch pipe 21, and the branch pipe 21 is left
Connect the curved pipe 21B to the center of the right pair of water pipes 3L and 3R.
And the center of the block body 2 on the upper end of the curved tube 21B.
The vertical pipe 21A provided in the is connected and water is sprinkled on the upper end of this vertical pipe 21A.
Since the nozzle 22 is connected, and the sprinkling nozzle 22 is connected to one of the pair of left and right water pipes 3L and 3R, the water pipe 3L of the block main bodies 2 and 2 adjacent to each other in the longitudinal direction.
By connecting a plurality of snow-melting blocks 1 and 1 so that the water supply pipes 3R and the water supply pipes 3R are alternately arranged and alternately supplying water to the connected water supply pipes 3L and 3R, alternate water sprinkling is performed for each block body 2 and 2. be able to. Furthermore, the water spray nozzle 22 the bent tube 21 B
Since it is connected right next to the water supply pipes 3L and 3R, even if the sprinkling nozzle 22 receives a wheel load, the load and vibrations are curved pipes.
Since joining the bottom of the concrete part of the 21 B, the branch pipe 21
It is possible to reduce the influence on the connection points between the water supply pipes 3L and 3R .

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, the number of water spouts provided in the block body can be appropriately selected.

[0027]

According to the first aspect of the present invention, a pair of left and right water pipes are embedded in an elongated block body, and both ends of these water pipes are opened to both end surfaces in the length direction of the block body, and the block body is provided. forms a narrow top surface portion than its lower portion, said plurality of nozzle nozzles in the width direction center of the upper surface portion blocks
Along with the length of the main body ,
The upper surface is substantially flush with the upper surface portion, the water spray nozzle and the water supply pipe are connected by a branch pipe, and the branch pipe is
Connect a curved pipe to the center of the pair of left and right water pipes, and
At the upper end of the curved pipe of, the vertical pipe provided in the center of the block body
Connect the water spray nozzle to the upper end of this vertical pipe.
The sprinkling nozzles alternately contact the pair of left and right water pipes.
Since it is continued , alternate water sprinkling can be performed efficiently, construction at the site is easy, and the exposed surface on the road can be reduced by reducing the size of the top surface. Blocks can be provided.

According to a second aspect of the present invention, a pair of left and right water pipes are embedded in an elongated block body, and both ends of these water pipes are opened to both end faces in the length direction of the block body, and the block body is provided. forms a narrow top surface portion than its lower portion, said plurality of nozzle nozzles in the width direction center of the upper surface portion
The blocks are arranged side by side in the length direction and
The upper surface of the nozzle is substantially flush with the upper surface portion, said water spray nozzle
Le and with said water pipe connected by a branch pipe, the branch pipe
When connecting a curved pipe to the center side of the pair of left and right water pipes,
Both are installed in the center of the block body at the upper end of this curved pipe
Connected vertical pipe, and connect the water spray nozzle to the upper end of this vertical pipe.
Continuing, the water spray nozzle of the pair of left and right water pipe
Since it is connected to one of the water pipes , alternate water sprinkling can be performed efficiently, construction at the site is easy, and the exposed area on the road can be reduced by reducing the top surface. It is possible to provide a block for snow-melting.

Further, the invention of claim 3 is such that female pipes are provided at both ends of the water supply pipe, and the female pipes of the adjacent block bodies are connected to each other by insertion pipes for inserting both sides into these male pipes. Yes, alternate water sprinkling can be performed efficiently, construction at the site is easy, and by making the top surface small, it is possible to reduce the exposed part on the road, so in the snow-melting block It is possible to provide a connection structure for a snow-melting block that can be reliably connected.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a snow removal block showing a first embodiment of the present invention.

FIG. 2 is a plan view of the snow removal block showing the first embodiment of the present invention.

FIG. 3 is a sectional view of a connection structure showing the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of a snow erasing block buried in a road showing the first embodiment of the present invention.

FIG. 5 is an explanatory plan view of a plurality of snow-removing blocks according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of a snow removal block showing a second embodiment of the present invention.

FIG. 7 is a plan view of a snow removal block showing a second embodiment of the present invention.

FIG. 8 is an explanatory plan view of a plurality of connected snow-removing blocks showing a second embodiment of the present invention.

FIG. 9 is an explanatory plan view showing a conventional snow-melting system pipe line.

FIG. 10 is an explanatory plan view showing a pipe line of another conventional snow erasing method.

[Explanation of symbols]

1 Snow Block 2 Block Main Body 2A End Surfaces 3L, 3R Water Pipe 4 Upper Surface 5 Lower Surface 11 Female Tube 14 Insertion Pipe 21 Branch Pipe 21B Curved Pipe 21A Vertical Pipe 22 Water Sprinkling Nozzle (Spraying Port)

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-2-261108 (JP, A) Actual development Sho-31-116 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E01H 5/10 E01H 3/04

Claims (3)

(57) [Claims] 1. A pair of left and right water pipes are embedded in a long block body, and both ends of these water pipes are opened to both lengthwise end faces of the block body, and the block body is an upper surface from a lower side thereof. The portion is formed to have a narrow width, and a plurality of water spray nozzles are arranged side by side in the length direction of the block main body at the center of the width direction of the upper surface portion, and the upper surface of the water spray nozzle is the upper surface portion.
They are substantially flush with each other, and the water spray nozzle and the water supply pipe are connected by a branch pipe, and the branch pipe is of the left and right water supply pipes.
A curved pipe is connected to the center side and the upper end of this curved pipe is
Connect the vertical pipe provided in the center of the block body,
The water spray nozzle is connected to the upper end, and the water spray nozzle is connected.
Is a block for snow removal, which is alternately connected to the pair of left and right water pipes . 2. A pair of left and right water pipes are embedded in a long block body, and both ends of these water pipes are opened to both lengthwise end faces of the block body, and the block body has an upper surface from a lower side thereof. The portion is formed to have a narrow width, and a plurality of water spray nozzles are arranged side by side in the length direction of the block main body at the center of the width direction of the upper surface portion, and the upper surface of the water spray nozzle is the upper surface portion.
They are substantially flush with each other, and the water spray nozzle and the water supply pipe are connected by a branch pipe, and the branch pipe is of the left and right water supply pipes.
A curved pipe is connected to the center side and the upper end of this curved pipe is
Connect the vertical pipe provided in the center of the block body,
The water spray nozzle is connected to the upper end, and the water spray nozzle is connected.
Is connected to one of the left and right water pipes
Snow melting block, characterized in that that. 3. A female cylinder portion is provided at both ends of the water supply pipe, and the female cylinder portions of adjacent block bodies are connected by insertion pipes for inserting both sides into these male cylinder portions. Or the connection structure of the snow-melting block described in 2 .