JP2001172930A - Snow plow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow plow for melting snow fed in a snow-melting chamber to dispose of snow in a snowfall district in which snow drops naturally into the snow-melting chamber and thawed without bothering workers. SOLUTION: A furnace is installed in the center of a snow-melting chamber opened at the upper side and a water spray pipe 24 is disposed at the periphery of the chamber. Water is sprayed from a pluraility of nozzles 25 of the water spray pipe 24 to the inside of the furnace to melt snow fed in the chamber. A snow guide plate 26 slanting downward from the upper part to the furnace body along the water spray pipe 24 and leading the lower end to a place in the vicinity of the upper part of the water spray pipe 24 is provided and an opening 26c is formed to pass the sprayed water at a position of the snow guide plate 26, corresponding to the nozzle 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting machine for treating snow in a snow-covered area, and more particularly to a snow melting machine for melting snow introduced into a snow melting room.

[0002]

2. Description of the Related Art Such a snow melting machine is disclosed in Japanese Unexamined Patent Publication No. 10-29.
As shown in No. 2337, a horizontally long water sprinkling pipe is provided around the interior of the snow melting room, a plurality of discharge ports are opened upward in the water sprinkling pipe, and a water sprinkling reflector is provided above each of the plurality of discharge ports. The watering reflector is fixed to a horizontally long mounting rod on the wall surface in the snow melting chamber, and the mounting rod is substantially inverted "L" shaped in a side view, and its vertical portion is detachably fixed to the snow melting chamber, The inventor of the present invention has proposed an apparatus in which the water-spreading reflector is inclined so that the snow-melting water discharged from the discharge port is guided toward the center of the snow-melting chamber, and the water is uniformly spread over the entire snow-melting chamber to melt the snow uniformly.

As disclosed in Japanese Patent Application Laid-Open No. 10-292338, a burner chamber and a snow melting chamber are provided in a main body tank, a burner is provided in the burner chamber, a furnace body is provided in the snow melting chamber, and snow is charged into the snow melting chamber. In a buried type snow melting machine that melts snow, an openable snow melting chamber lid that covers an upper opening of the snow melting chamber is provided, and a fall prevention frame is provided below the closed snow melting chamber lid, and the fall prevention frame is a snow melting chamber. The inventor of the present invention has proposed a grid that covers almost the entire upper opening of the snow melting chamber when the lid is opened so that the snow melting worker does not fall into the snow melting chamber even if it falls down.

[0004]

In the case where the watering reflection plate as described above is fixed to a horizontally long mounting rod on the wall in the snow melting chamber, the weight of snow is sprinkled by the horizontally flat mounting rod. Although it also serves to prevent it from joining the pipe, the snow on it does not fall into the snow melting chamber, and snow enters between the mounting rod and the water sprinkling pipe, and the snow and the snow in the snow melting chamber become sticky. It caused a bridge phenomenon, and it was difficult for snow to fall naturally into the snow melting room. for that reason,
Sometimes it was necessary to manually push down the snow with a scoop or the like.

In the case where the fall prevention frame is a grid that covers almost the entire upper opening of the snow melting chamber, the fall prevention frame also serves to receive the load applied to the snow melting chamber lid. The snow chunks larger than the eyes did not fall into the snow melting room, and there were areas where water was not sprayed because they were hindered by the fall prevention frame, and the snow adhered to the fall prevention frame and caused a bridging phenomenon. Therefore, it was sometimes necessary to manually push down the snow with a scoop or the like.

Accordingly, an object of the present invention is to provide a snow melting machine having good snow-throwing properties, in which snow naturally falls into a snow-melting room without any need for human intervention, and is melted, and the thrown snow is sequentially melted.

[0007]

According to a first aspect of the present invention, there is provided a snow melting machine, wherein a furnace body 22 is provided at the center of a snow melting chamber 3 which is open at the top.
A water spray pipe 24 is provided around the snow melting chamber 3, and in a snow melting machine that sprays water from a plurality of outlets 25 of the water spray pipe 24 toward the furnace body 22 to melt the snow that has been put into the snow melting chamber 3, along the water spray pipe 24. A snow guide plate 26 which is inclined downward from the upper side toward the furnace body 22 and has a lower end reaching near the upper part of the water sprinkling pipe 24 is provided.
An opening 26 that allows water to pass through to a position corresponding to the discharge port 25 of 26
c is provided.

According to a second aspect of the present invention, a furnace 22 is provided in the center of a snow melting chamber 3 having an upper opening, and the snow melted in the snow melting chamber 3 by heat radiation from the furnace 22. In this embodiment, a grid-shaped safety frame 30 slightly spaced from the furnace body 22 is provided along the periphery of the upper surface and side surfaces of the furnace body 22.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a watering pipe is provided.
A snow guide plate 26 is provided which is inclined downward from the upper part thereof toward the furnace body 22 along the direction 24 and has a lower end reaching near the upper part of the water sprinkling pipe 24. Since the snow guide plate 26c is provided, the snow on the snow guide plate 26 naturally falls toward the furnace body 22, and the snow near the opening 26c is first melted by water sprinkling, and the snow enters between the snow guide plate 26 and the water sprinkling pipe 24. Absent.

According to the second aspect of the present invention, a grid-shaped safety frame which is slightly separated from the furnace body 22 along the upper surface and side surfaces of the furnace body 22 is provided.
Since the safety frame 30 is provided, the safety frame 30 does not hinder the snow thrown into the snow melting chamber 3 regardless of the size of the grid, without snow sticking thereto.

[0011]

An embodiment of the present invention will be described below with reference to the drawings.

The snow melting machine shown in FIG. 1 is of a buried type, and has a box-shaped main body tank 1 having an upper surface opening buried under the ground E, and a burner chamber 2 defined in the main body tank 1 by partitions 5 and 6. And snowmelt room 3
And a pump chamber 4.

A square burner chamber lid 11 is provided at a portion of the upper surface of the burner chamber 2 which is open to the ground E, and an openable and closable operation box lid 12 is provided at one corner of the burner chamber lid 11.
When the user opens the operation box 12, the operation box 13 appears. A pair of left and right rectangular snow melting chamber lids 15 and 16 are provided on the upper surface of the snow melting chamber 3 and open to the ground E. The snow melting chamber lids 15 and 16 are opened during snow melting and closed when not in use. A rectangular pump chamber cover 18 that can be opened and closed is provided at a portion of the upper surface of the pump chamber 4 that opens to the ground E, and the pump chamber cover 18 is closed during the snow melting operation.

A burner 21 is provided on the partition wall 5 in the burner chamber 2, and an oil feed pipe for feeding kerosene from outside the main body tank 1 is connected to the burner 21. The burner 21 is burned by air supplied from an intake cylinder. The liquid is discharged from the hole provided in the partition wall 5 in the direction of the snow melting chamber 3.

At the center of the snow melting chamber 3, a long cylindrical body 22 having a substantially cylindrical shape is provided from the partition wall 5. The furnace body 22 is provided with a cylindrical body 22a as a primary combustion chamber and a box body 22b as a secondary combustion chamber ahead of the body 22a, and a furnace body exhaust port 22c from the box body 22b on the opposite side of the burner chamber 2. . The furnace body 22 communicates with the burner 21 to completely burn the combustion gas from the burner 21 and exhaust it from the furnace body exhaust port 22c. Increase the temperature of the accumulated snowmelt water.
In addition, the snowmelt water in the snowmelt room 3 has a specified water level, and the snowmelt water exceeding the specified water level naturally flows out of the drain port.

A submersible pump 23 is provided in the pump chamber 4, and a communication hole is provided in a lower corner of the partition 6 between the snow melting chamber 3 and the pump chamber 4, and the water in the snow melting chamber 3 is supplied to the submersible pump 23. Is done. The submersible pump 23 supplies the snowmelt water to the sprinkler.

The water sprinkling device is provided with a substantially U-shaped water sprinkling pipe 24 extending in a horizontal direction and surrounding the furnace body 22 along a wall around the upper part of the interior of the snow melting chamber 3, and the water sprinkling pipe 24 is a submersible pump. Connected to 23. A plurality of discharge ports 25 are provided in the watering pipe 24, and three discharge ports 25 on one side located on both sides of the furnace body 22 are opened upward, and the discharge ports 25 of the furnace body 22 on the pump chamber 4 side are provided.
Opens downward from the horizontal direction toward the furnace body 22.

Each discharge port 25 located on both sides of the furnace body 22
A watering reflection plate 27 is provided above the. The watering reflection plate 27 is fixed to a pair of snow guide plates 26 which are provided in the horizontal direction on the wall surfaces located on both sides of the furnace body 22 in the upper part of the snow melting chamber 3, and the upper side is the furnace body.
The snow melting water discharged from the discharge port 25 is guided in the direction of the center of the snow melting chamber 3 to spray water, and the snow put into the snow melting chamber 3 is melted.

The watering reflector 27 has a curved shape like a bowl as a whole, and is formed in a fan shape having a narrow lower side and a wider upper side. The snowmelt water discharged from the discharge port 25 is diffused toward the furnace body 22 at the center of the snowmelt chamber 3, and spreads like a film to spray water.

The hooks 7 each having a substantially "L" shape in side view are fixed at positions corresponding to the snow guide plates 26 on the wall surfaces of the snow melting chamber 3 located on both side surfaces of the furnace body 22. The snow guide plate 26 is inserted into the hook 7 together with the watering reflector 27 from above and is removably fixed.

A side view of the snow guide plate 26 has a substantially U-shape opening downward, and is provided along the water sprinkling pipes 24 on both sides of the furnace body 22. Of the snow guide plate 26 is inclined downward toward the furnace body 22 from a wall surface around the upper end of the snow melting chamber 3 above the vertical surface 26b of the snow guide plate 26 on the furnace body 22 side.
Has its lower end near the top of the sprinkling pipe 24. Snow guide board
The vertical surface 26b of 26 is provided with a horizontally long opening 26c at a position corresponding to the discharge port 25 and the watering reflector 27 so as to allow water to pass therethrough.

A safety frame is provided along the periphery of the upper and side surfaces of the furnace body 22.
30 will be provided. The safety frame 30 is formed in a grid shape, and the grid portion is provided slightly apart from the furnace body 22. Safety frame 30 is furnace body 22
Secured at the top, safety frame 30 is closed snowmelt compartment lids 15,16
, And is not affected by the load applied to the snow melting chamber lids 15 and 16.

The safety frame 30 includes a cylindrical lattice frame 31 extending along the periphery of the upper surface and the side surface of the cylindrical body 22a, and a box body extending along the periphery of the upper surface and the side surface of the box 22b and the furnace outlet 22c. A partial lattice frame 37 is provided, each of which is separated from an upper portion of the furnace body 22 and is configured as a pair of right and left parts.

The cylindrical lattice frame 31 is provided with substantially vertical "U" shaped vertical lattices 32 at substantially three positions in the longitudinal direction of the body 22a in a substantially vertical direction. The vertical lattice 32 has a width of 22 mm and a thickness of 22 mm. Constructed of 6 mm flat steel, the circumferential width of the fuselage 22a is wider than the longitudinal width, and the vertical grid 32 has an inner diameter larger than the outer diameter of the fuselage 22a and is separated from the fuselage 22a by about 10 mm or more. .
The lower end of the vertical grid 32 is located below the center of the body 22a, and connects the lower vertical grid 33 that is long in the horizontal direction away from the body 22a from the lower end, and the lower vertical grid 33 is 25 mm wide and 6 mm thick. It is made of flat steel, has a wide width in the vertical direction, and is separated from the body 22a by about 50 mm or more.

An upper horizontal grid 34 connecting the vertical grids 32 at the upper portion is provided substantially in the horizontal direction, and the upper horizontal grid 34 is made of flat steel having a width of 25 mm and a thickness of 4.5 mm,
The width in the vertical direction is widened, and it is separated from the body 22a by about 10 mm or more. The upper horizontal lattice 34 is the body 22a
Fixed at the top. The lower horizontal grid 35 that connects the vertical lower grid 33 at the tip is provided substantially in the horizontal direction, and the lower horizontal grid 35 is made of flat steel having a width of 25 mm and a thickness of 6 mm,
The width in the vertical direction is widened, and it is separated from the body 22a by about 100 mm or more.

An intermediate horizontal grid 36, which connects the vertical grids 32 at the intermediate portion, is provided in the upper and lower stages in a substantially horizontal direction, and the intermediate horizontal grid 36 is made of flat steel having a width of 22 mm and a thickness of 6 mm. The wide part of the middle horizontal grid 36 to the vertical grid 32
Are connected along the outer periphery of the body 22a and are separated from the body 22a by about 32 mm or more.

The space between these lattices constituting the cylindrical lattice frame 31 is a space through which snow falls, and the flat steel constituting the lattice is used in such a manner that its vertical direction is substantially the same as the horizontal direction. Longer rectangular section to increase load capacity, short horizontal direction to apply local stress to snow, tear off snow by edge effect, increase surface area and drop into fuselage 22a or snowmelt water to increase snowmelt ability Things.

An upper horizontal grid 38 extending in the horizontal direction perpendicular to the longitudinal direction of the body 22a is provided above the junction between the body 22a and the box 22b on the box body frame 37, and is provided above the furnace body exhaust port 22c. More than 10 mm apart. Upper horizontal grid 38
Is connected to and fixed to an upper horizontal grid 34 extending above the furnace body 22.

A vertical grid 39 is provided below the tip of the upper horizontal grid 38, and the lower part of the vertical grid 39 is inclined in the direction of the burner chamber 2 so as to pass through the furnace body exhaust port 22c. Change the angle almost vertically from the time when
The lower end is connected and fixed to the tip of the vertical lower lattice 33 on the pump chamber 4 side.

An intermediate horizontal grid 40 connecting the substantially vertical portion of the vertical grid 39 and the vertical grid 32 on the pump chamber 4 side.
Are provided in the upper and lower stages in the horizontal direction. The upper horizontal grid 38, the vertical grid 39, and the middle horizontal grid 40 of the box frame grid 37 are composed of round bars having a diameter of 9 mm, and the space between the grids serves as a space through which snow falls. is there.

The cylindrical lattice frame 31 and the box lattice frame 37 of the safety frame 30 are provided slightly apart from the furnace
When the snow melting worker falls down into the snow melting chamber 3, it is received by the safety frame 30 and is prevented from coming into contact with the high temperature furnace body 22 below or on the side thereof.

Next, the operation together with the method of use will be described.

First, the operation box lid 12 and the snow melting chamber lids 15, 16
, A predetermined amount of water is injected into the snow melting chamber 3 only at the beginning of the season, the submersible pump 23 is operated to sprinkle water on the furnace body 22, and then the burner 21 is ignited.

When snow is thrown into the snow melting chamber 3, heat is radiated from the furnace body 22, exhausted from the furnace body 22, and the discharge port 25 of the watering pipe 24 is discharged.
Snowmelt that has been melted due to water spray from the lake and exceeds the specified water level will naturally flow out of the drain. When a snow melting worker throws snow into the snow melting room 3 beyond the capacity of the snow melting machine, the snow accumulates and the snow melting room 3
Become a mountain beyond.

At this time, there is provided a snow guide plate 26 which is inclined downward from the upper part thereof toward the furnace body 22 along the water sprinkling pipe 24 and has a lower end reaching near the upper part of the water sprinkling pipe 24.
An opening 26c through which water is allowed to pass is provided at a position corresponding to the surface of the snow guide plate 26, and the snow on the upper surface 26a of the snow guide plate 26 naturally falls toward the furnace body 22, and the snow near the opening 26c is first melted by water sprinkling so that the snow guide plate 26 Since the snow does not enter between the water spray pipe 24 and the water, the snow in the snow melting chamber 3 does not stick and cause a bridging phenomenon.

A grid-shaped safety frame 30 is provided along the upper surface and side surfaces of the furnace body 22 and slightly separated from the furnace body 22. The safety frame 30 is adhered to snow regardless of the size of the grid. Since the snow thrown into the snow melting chamber 3 is not hindered, the snow in the snow melting chamber 3 does not stick and cause a bridging phenomenon.

The cylindrical grid frame 31 and the box grid frame 37 of the safety frame 30 are provided slightly apart from the furnace
It is cooled by water spraying from the water, and even if a snow melting worker or a child falls down into the snow melting room 3, it is received by the safety frame 30 and is prevented from coming into contact with the high temperature furnace body 22 below or on the side thereof. .

When the snow melting operation is completed, the burner 21 is extinguished and the operation of the submersible pump 23 is stopped, and the operation box lid 12 and the snow melting chamber lids 15 and 16 are closed and locked. In order to drain the water from the snow melting chamber 3 and the pump chamber 4 only when the season is over, the valve between the submersible pump 23 and the watering pipe 24 is switched, and the submersible pump 23 is operated to drain water.

In the above embodiment, the snow melting chamber 3 is of a buried type in which the snow melting chamber 3 is buried under the ground E. However, the snow melting chamber 3 may be applied to a ground-mounted type or a mobile type.

A plurality of outlets 25 are opened upward in the watering pipe 24, and a watering reflector 27 is provided above the outlets 25, and the watering reflector 27 is provided for discharging snowmelt water discharged from the outlet 25. The one that sprays water toward the center of the snow melting room 3 is shown, but the watering reflector
Water may be sprayed directly from the discharge port 25 without using the 27.

The safety frame 30 has a cylindrical grid frame 31 made of flat steel and a grid, and a box frame grid frame made of a round bar.
37, the safety frame 30 may be formed in a lattice shape by combining any of the materials and matching the shape of the furnace body 22.

[0042]

According to the first aspect of the present invention, a snow guide plate is provided along the water sprinkling pipe, which is inclined downward from above to the furnace body and has a lower end reaching near the upper part of the water sprinkling pipe. An opening that allows water to pass through is provided at the position corresponding to the water, the snow on the snow guide plate falls naturally toward the furnace body, and the snow near the opening is first melted by water sprinkling, and snow falls between the snow guide plate and the water sprinkling pipe. Since it does not enter, the snow inside the snow melting room does not stick and cause a bridging phenomenon.

According to the second aspect of the present invention, a grid-like safety frame is provided along the periphery of the furnace body upper surface and side surfaces and slightly separated from the furnace body, and the safety frame is provided regardless of the size of the grid. Since the snow does not stick and does not hinder the snow being thrown into the snow melting chamber, the snow in the snow melting chamber does not stick and cause a bridging phenomenon.

Further, the safety frame is provided slightly away from the furnace body, so that even if a snow melting worker or a child falls down into the snow melting room, the safety frame is received by the safety frame and contacts the high temperature furnace body below or on the side. And safe.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a snow melting machine.

FIG. 2 is a plan view with its lid removed.

FIG. 3 is a view as viewed from an arrow A in FIG. 1;

FIG. 4 is a view in which the snow guide plate of FIG. 2 is removed and a part is cut away.

FIG. 5 is a partially enlarged view showing the sprinkling pipe of FIG. 4;

FIG. 6 is a partially enlarged view showing a snow guide plate and a watering pipe of FIG. 1;

FIG. 7 is a partially enlarged view of FIG. 6;

FIG. 8 is a partially enlarged view showing a snow guide plate and a watering pipe of FIG. 3;

FIG. 9 is a partially enlarged view showing the safety frame of FIG. 1;

FIG. 10 is a partially enlarged view showing the safety frame of FIG. 2;

FIG. 11 is a partially enlarged view showing the safety frame of FIG. 3;

FIG. 12 is a perspective view showing a safety frame.

[Explanation of symbols]

 3 Snow melting room 22 Furnace body 24 Sprinkler pipe 25 Discharge port 26 Snow guide plate 26c opening 30 Safety frame

Claims (2)

[Claims] 1. A furnace body is provided at the center of a snow melting chamber having an upper opening, a water spray pipe is provided around the snow melting chamber, and water is sprayed from a plurality of outlets of the water spray pipe toward the furnace body to be injected into the snow melting chamber. In the snow melting machine that melts snow, a snow guide plate is provided that slopes downward from the upper side along the sprinkler pipe toward the furnace body and the lower end reaches near the upper part of the sprinkler pipe, and sprays water at a position corresponding to the discharge port of the snow guide plate. Snow melting machine with an opening to let through. 2. A snow melting machine, wherein a furnace body is provided at the center of a snow melting chamber having an upper opening, and the snow melted in the snow melting chamber by heat radiation from the furnace body. A snow melting machine with a grid-shaped safety frame slightly separated from the body.