JPH033662Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is based on the idea that snow accumulated on roads, etc. is thrown into a waterway, and the water flow of the waterway causes the thrown snow to flow down.
The present invention also relates to a snow flume that melts snow by efficiently utilizing the small amount of thermal energy possessed by flowing water.

[Conventional technology]

Conventionally, there have been various types of this type of drifting snow or snow channel as shown below.

(1) As shown in Fig. 7, a water pump (not shown) of a water pumping device introduces running water from a river into a side gutter (water guide gutter) 1, and the gutter 1 is provided with a step 2 on which the flowing water falls; The snow thrown into the gutter 1 is crushed and melted by the rapid water pressure of the water falling from the step 2, and is then flowed downstream (see Japanese Patent Publication No. 59-228844).

(2) As shown in Figures 8 and 9, by installing frames 2 below both sides of the side gutter 1, either integrally with the side gutter 1 or separately, the stepped portion 3 can be formed along the longitudinal direction. Form. A perforated plate (snow removal plate) 5 having through-holes 4 for water passage is installed in this step 3, and a water passage gap 6 is formed below the perforated plate 5. Moreover, between the adjacent perforated plates 5, 5, there is a dam plate 7 that dams the water channel of the side gutter 1 and the water flow gap 6.
8 is a handle (Yamagata Shimbun published December 5, 1980, Jikko 60).
(Refer to Publication No.-19192 and Publication No. 19193 of Showa 60).

Therefore, when the water flowing down in the side gutter 1 is dammed by the dam plate 7, the water level rises and is stored. Then, when the stored water rises to a dam,
It overflows on the dam plate 7 and flows downstream. Further, when snow is thrown into the stored water dammed by the dam plate 7, the calorie content of this water decreases, and the water passes through the through holes 4 of the perforated plate 5 and falls into the water passage gap 6. The water on the perforated plate 5 has a slightly higher temperature than this falling water, so convection occurs, and the water in the water passage gap 6 passes through the through holes 4 of the perforated plate 5 and rises, coming into contact with the snow. Melt it. When the snow melts due to such water circulation, the dam plate 7 is pulled up and allowed to flow down.

(3) As shown in Figure 10, from the center of the bottom part 2 of the underground culvert (sewage channel) 1, install a bulkhead 4 with a height that does not touch the top part 3 in the longitudinal direction of the culvert 1. A culvert 1 is formed by the partition wall 4 along the
The interior is divided into a first water channel 5 and a second water channel 6.
In addition, holes (manholes) 7 into which snow is thrown are installed at intervals of 30 to 50 meters on the top section 3 directly above the first waterway 5. In the winter, water is allowed to flow only through the first waterway 5, and this water flow melts the snow thrown in from the manhole 7 before flowing down (Japan Sewerage Newspaper, November 18, 1985). ).

[Problem that the invention attempts to solve]

However, in the device of the above-mentioned prior art (1) that melts snow by dropping water from the step 2 provided in the middle of the side gutter 1,
Unless the stepped portion 2 is set quite high, there is no snow melting effect, and therefore, it has been impossible to use this technique for small objects such as road gutters.

In addition, the snow melting devices of (2) and (3) have the problem that snow is melted only by running water in the gutter 1 or culvert 1, so their effectiveness is low. However, it required a formwork separate from conventional gutters, and it had the disadvantage that it could not be applied to gutters that had already been laid.

[Means for solving problems]

The purpose of this invention is to provide a snow flume that solves the conventional drawbacks as described above.
The gist is that a frame member is fitted into the upper opening of the U-shaped waterway, and a partition wall is suspended and fixed to at least one long side of the frame member, and the main waterway and the bypass waterway are connected by the partition wall. The snow flume is characterized in that a plurality of water holes are formed in the partition wall to communicate the main waterway and the bypass waterway.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the embodiments shown in the drawings. In addition, Fig. 1 is a perspective view showing a part of the snow channel according to the present invention, Fig. 2 is a cross-sectional view of the snow channel, and Fig. 3 is a part of the bulkhead used in the snow channel. This is a perspective view showing Figure 4 A, B, C, D, H,
FIG. 5A is a front view showing a part of a different embodiment showing the shape of the hole in the same partition wall, and FIGS.

In the above drawing, 1 is a conventional reinforced concrete waterway block having a predetermined length;
The left and right side walls 2, 2 and the bottom wall 3 form a U-shape in cross section with an opening at the top, and a shoulder 5 is formed on the inside surface of the upper opening 4.

Reference numeral 6 denotes a rectangular frame whose outer shape is the same as the opening 4 of the water channel 1 and is formed to fit into a shoulder 5 formed on the inner surface thereof, and has left and right long sides 7.
A protruding portion 8 is formed on the inner side of the protruding portion 8, and a lid 9 is received at a stepped portion 8a on the upper surface of the protruding portion 8.

10 and 10 are bulkheads with the same length as waterway block 1,
Its upper edge 10a is fixed to the protruding strip 8 and stands apart from the inner surfaces of the left and right side walls 2, 2 along the longitudinal direction, and its lower edge 10b extends to the upper surface 3a of the bottom wall 3. ing. As a result, a main water channel 11 is formed between the left and right partition walls 10, 10, and a bypass water channel 12 is formed between the side walls 2, 2 and the partition walls 10, 10.

Here, stainless steel plates or synthetic resin plates are used for the partition walls 10, 10 because of their smooth surfaces, low slip resistance, high corrosion resistance, durability, and strength. In order to prevent the structural strength from deteriorating due to the drilling of the water holes 13, as shown in FIG. Rim 10b, 10
This is the connecting member passed between b.

Reference numeral 13 denotes a large number of water holes bored in the partition wall 10, through which the main waterway 11 and the bypass waterway 12 communicate. Here, the water hole 13 is
As shown in FIG. 4A, a hole in which perfect circular holes 13a are arranged in a staggered pattern is used. In addition, there are also elongated hole shapes 13b as shown in FIG. 4B, square hole shapes 13c as shown in FIG. Ho in the same figure,
There are various shapes of the diamond-shaped hole 13e and the hexagonal hole 13f as shown in F, and the most suitable one according to the snow environment is selected and used. Note that the partition wall 10 of this water passage hole 13
The effective aperture ratio is 20% to 70 depending on the snow environment.
It is desirable to set it as %.

Next, how to attach the frame body 6 and the partition wall 10 will be explained with reference to the embodiments A, B, C, and D of FIG. 5. As shown in A and B of FIG.
A method of fixing the upper end edge 10a of the partition wall 10 to a nut 17 embedded in the side end surface part 8b of the protrusion part 8 of the frame body 6 with a bolt 18, and as shown in C and D of FIG. , side end surface portion 8 of the protrusion portion 8 of the frame body 6
The partition wall 1 is attached to the stainless steel member 19 embedded in advance in b.
There is a method of fixing the upper frosted edge 10a of the partition wall 10 by spot welding, etc. In the embodiment shown in FIGS. In the embodiment shown in B and D of the figure, U-shaped support members 16 are attached to the outside of the lower edge 10b of the partition wall 10 at predetermined intervals, and the side surface 16a of the support member 16 is brought into contact with the inner surface of the side wall 2. Indicates that the product has been tightened and prevented from spreading.

The waterway blocks 1 are connected to each other by conventional means for connecting waterway blocks of this type. [Operation of the embodiment] Next, regarding the operation of the above embodiment, see A and A in Fig. 6.
This will be explained with reference to (b) and (c). In addition, in the following, there are two bypass passages 12, 1 on the left and right in the waterway block 1.
Although the case where two bypass passages are formed will be explained as an example, the effect is the same even if there is one bypass passage.

During normal times, water A in the waterway 1 flows down through the main waterway 11 and the bypass waterway 12.

During the winter, the amount of flowing water A is smaller than in normal times. Therefore, the water flows down through the main waterway 11 and the bypass passage 12 at a low water level.

In such a situation, if snow B accumulated on the road etc. is thrown into the main waterway 11 from the opening 4, if the amount of snow B thrown in is small, it will be washed down by the flowing water A in the main waterway 11. be done. In particular, when the partition wall 10 is made of a stainless steel plate or a synthetic resin plate with a small coefficient of friction, the snow B easily flows down with the water flow A without resistance.

Then, a large amount of snow B is thrown into the main waterway 11,
When a part of the main waterway 11 is blocked by snow B and water A in the main waterway 11 is stored, this stored water A passes through the water passage hole 13 and flows into the bypass waterway 12,
Since the water flows down within the bypass waterway 12, there is no possibility that the water will drain to the outside from the upper end of the side wall 2 of the waterway 1.

At the same time, the water level in the bypass waterway 12 rises by the amount that flows from the main waterway 11 into the bypass waterway 12 through the water passage hole 13, and becomes higher than the water level in the main waterway 11. Then, the water A in the bypass waterway 12 is injected into the snow B in the main waterway 11 through the water passage hole 13 due to its water pressure (shower effect).

Moreover, since the water A in the bypass waterway 12 does not come into direct contact with the snow B, the water temperature is somewhat higher than that of the water A in the main waterway 11. The surface of the snow B is rapidly melted by the water sprayed on the surface of the snow B, and the water sprayed is placed between the partition wall 10 and the surface of the snow B so as to reduce the sliding resistance between the two. As a result, snow B smoothly and rapidly flows downward while being separated.

Note that if the inner surface of the water channel 1 is coated with urethane resin or fluorine resin paint, the flow rate of the water channel 1 is approximately twice that of an uncoated water channel, so the above effect is further enhanced. This is because concrete walls are hydrophilic, allowing water to easily penetrate and snow to adhere to them, whereas painted surfaces are waterproof, making it difficult for snow to adhere to them, and reducing the coefficient of friction between the wall and snow. There is probably a reason.

[Effect of idea]

As described above, the present invention involves fitting a frame member into the upper opening of the U-shaped waterway, and fixing a side wall hanging down from at least one long side of the frame member, so that the main body can be fixed by the partition wall. A waterway and a bypass waterway are formed respectively, and a plurality of water holes are formed in the bulkhead to communicate the main waterway and the bypass waterway, so a large amount of snow is thrown into the main waterway and one part of the main waterway is formed. Even if the area is dammed up by snow, this stored water A will pass through the water hole, flow into the bypass waterway, and flow down the bypass waterway, so water will not leak outside from the upper end of the side wall of the waterway. There is no.

In addition, even in the winter when the amount of water flowing is low, the main waterway is dammed up by the snow thrown in, and the water in the main waterway flows into the bypass waterway, causing the water level in the bypass waterway to rise. The return water gushes out like a shower and rapidly melts the snow B, making the snow melting efficiency extremely high.At the same time, this return water flowing from the water hole into the main waterway flows between the bulkhead and the snow surface. Since it acts to reduce the sliding resistance in the snow, the snow flows smoothly downward.
The drifting snow effect is noticeable.

Furthermore, the present invention has various advantages, such as being easy to apply as it can be applied to existing waterways, and eliminating the need for capital investment such as making new forms.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a part of the snow channel according to the present invention, Fig. 2 is a cross-sectional view of the snow channel, and Fig. 3 is a part of the bulkhead used in the snow channel. Perspective views, A, B, C, D, H, and F in Fig. 4 are front views showing parts of different partition walls, and Fig. 5 A,
B, C, and D are cross-sectional views of main parts of different structures showing the installation state of the bulkhead; A, B, and C of Fig. 6 are explanatory diagrams showing the operating state of the snow channel; Fig. 7 is a conventional snow drifting method. 8 is a plan view of another conventional snow channel, FIG. 9 is a sectional view taken along the line -1 in FIG.
FIG. 0 is a longitudinal cross-sectional view of yet another conventional snow channel. 1... Channel block, 2... Side wall, 3... Bottom wall, 4... Opening, 5... Shoulder, 6... Frame, 7
... Long side part, 8 ... Protrusion part, 9 ... Lid, 10 ...
Bulkhead, 11...main waterway, 12...bypass waterway,
13... Water hole, 14... Rib, 15... Connecting member, 16... Supporting metal fitting, 17... Nut, 18...
...Bolt, 19...Stainless steel plate.

Claims (1)

[Claims for Utility Model Registration] (1) A frame member is fitted into the upper opening of the U-shaped waterway, and at the same time, a bulkhead is suspended and fixed to at least one long side of the frame member, and the bulkhead is attached to the frame member. A main channel and a bypass channel are formed in the partition wall, and a plurality of water holes are formed in the partition wall to communicate the main channel and the bypass channel. (2) The snow flume according to claim 1 of the utility model registration, wherein the partition wall is a stainless steel plate. (3) The snow flume as set forth in claim 1 of the utility model registration claim, wherein the partition walls are made of synthetic resin plates. (4) The snow flume according to claim 1, 2, or 3 of the utility model registration claim, wherein the water passage hole is a round hole, a long hole, or a square hole. (5) The snow flume according to claim 1, 2 or 4 of the utility model registration claim, wherein the bulkhead is fixed by bolting or spot welding.