JPH07229122A - Snow melting machine - Google Patents

Abstract

PURPOSE:To conduct the operation and stop of a snow melting machine easily and safely. CONSTITUTION:In a snow melting machine so constructed that a burner chamber E, a snow melting chamber C and a pump chamber D are formed in a box- shaped snow melting tank 2, when an upper lid 1 pivoted on the upper side of an upper opening part of the snow melting tank 2 is put in the open state to enable a snow melting work, the main power supply is automatically turned on, and when the lid is closed, the main power supply is automatically turned off. A throw-in sensor plate S turned by the weight of the thrown-in snow is provided in the snow melting chamber C. When the throw-in sensor plate S is turned, a burner B is fired automatically, and when the snow in the snow melting chamber C is gone, the throw-in sensor plate S is returned to its initial position so that the burner B is extinguished automatically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a snow melting machine which is buried outdoors such as in a garden or a parking lot, and which throws in snow and then melts and discharges the snow.

[0002]

2. Description of the Related Art A conventional buried snow melting machine is a submersible pump for melting relatively warm snow melting water after melting snow introduced into a snow melting room with a furnace body and hot air heated by a burner with an upper lid opened. To melt the snow by pumping a part of it again through the pipe into the snow melting room like a shower.
It was configured to drain the rest into a drain. For example, the fact that the same applicant makes it known that
It is like the technique described in JP-A-40098 and JP-B-6-1616.

[0003]

However, in the above-mentioned prior art, the buried snow melting machine has a simple structure to improve operability and safety, and improve snow melting efficiency to reduce fuel costs and the like. There is room for improvement in order to reduce For example, an upper lid that is lightweight so that it can be opened and closed easily and has sufficient strength to withstand the weight of heavy objects such as automobiles, and the air suction section of the burner is integrally formed on the upper lid. The structure is such that air can be sucked in when the door is opened, and the operation of the buried snowmelter is not started / stopped by the switch on the operation box. However, when the snow is gone, the fire will be extinguished automatically so that the operation can be performed easily and safely.

The cooling water is stored in the furnace body so as not to be deformed by being burned by the burner. Therefore, the cooling water is used to melt the snow with the heated hot water after cooling. It is configured so that the snow melting ability can be improved. A device that can easily remove dust and the like is provided on a pipe that discharges snow melting water in a shower shape, and it is possible to prevent deterioration of the snow melting capability due to clogging of the pipe. Furthermore, even if the submersible pump fails and cannot perform forced drainage, it will automatically switch to natural drainage, and will be able to perform snow melting work even if the submersible pump fails. Is.

In view of the above, the present invention is a buried type in which the operation and stop operation can be performed easily and safely, the snow melting capacity can be improved, and the snow melting work can be performed even if the submersible pump fails. It is intended to provide a snow melting machine.

[0006]

In order to solve the above problems, the following means are used. That is, the present invention comprises a burner chamber, a snow melting chamber and a pump chamber in a box-shaped snow melting tank, which is buried in the ground leaving an upper opening of the snow melting tank, and snow-removed snow is put into the snow melting chamber. In a snow melting machine that melts by the heat from the burner in the burner chamber and discharges the snow melting water with an automatic submersible pump in the pump chamber,
An upper lid formed of a single lightweight plate-like member is pivotally connected to one upper side of the upper opening, and when the upper lid is opened to allow snow melting, the main power is automatically turned on and closed. And the main power is automatically turned off.

Further, an air suction portion is attached to the upper lid,
When the air suction port is opened outside the machine body of the air suction unit and the lid is opened to allow snow melting work, the air suction unit appears and air can be supplied to the burner chamber, and the upper lid is closed when not in operation. In the state, the air suction part can be stored in the burner chamber, a reinforcing material is attached to the back surface of the upper lid, and the reinforcing material is laid horizontally in the snow melting chamber when the upper lid is closed. By making contact with the furnace body, sufficient strength is ensured even if a heavy object is placed on the upper lid.

Further, in the snow melting machine, a part of the drained snow melting water is discharged into a cooling water chamber formed in a furnace body horizontally provided in the snow melting chamber and cooled by a burner. Overflowing water from the cooling water chamber, configured to melt the snow introduced using the cooling water, is inscribed pipes around the upper periphery of the snow melting chamber, so that snow does not adhere to the side surface of the snow melting chamber, A dust removing device for removing dust in the shower pipe is provided in a shower pipe that ejects a part of drained snowmelt water in a shower shape.

In the snow melting machine, a drainage pipe 29 is connected to one side surface of the pump chamber to form a drainage port, and a lower half of the drainage port is closed by a stop plate, and an upper approximately half opening is formed. The drain pipe connected to the automatic submersible pump is inserted to extend into the drain pipe, and the level of the upper end portion of the stop plate and the communication hole for communicating the snow melting chamber and the pump chamber are the same.
A throw-in sensor plate that rotates when the snow is thrown into the snow-melting chamber is provided, and when the throw-in sensor plate rotates, the burner automatically ignites, and when the snow in the snow-melting chamber runs out, the throw-in sensor plate becomes the original. The burner is automatically extinguished after returning to the position.

Further, the pump chamber is divided by a partition plate, the partition plate is set higher than the suction stop position of the automatic submersible pump, and when the snowmelt water is discharged and reaches the upper end of the partition plate, the water surface thereof is Separate the snowmelt water from the automatic submersible pump side, and at the moment when the water level drops and the water level drops below the water level on the other side, the snowmelt water on the other side flows in and the volume increases and turbulence occurs. It is configured in.

[0011]

The operation will be described. With the configuration according to the first aspect, the operation of opening the upper lid at the start of the snow melting work can be performed at once without much labor. According to the second aspect of the invention, the operation box conventionally provided on the upper lid can be eliminated, and the main power is turned on by operating the burner and the automatic submersible pump only by opening the upper lid so that snow melting work can be performed. Can be enabled. According to the third aspect of the invention, the air can be supplied to the burner chamber via the air suction part only by opening the upper lid in an open state where snow melting work can be performed.

According to the fourth aspect of the invention, a person can be placed on the upper lid or the automobile can be parked when not working. According to the fifth aspect, it is possible to use the cooling water in the cooling water chamber of the furnace body that is heated by the burner and has a high temperature to melt the snow introduced into the snow melting chamber. According to the sixth aspect, it is possible to easily remove dust such as cigarette butts and dog hair in the shower pipe through the dust removing device. With the configuration according to claim 7, even if the automatic submersible pump fails, the upper approximately half opening of the drainage port becomes a drainage hole, which acts as an overflow and automatically switches from forced drainage to natural drainage. it can.

Further, according to the eighth aspect of the invention, when the upper lid is opened so that the snow melting work can be performed and the main power is turned on and snow is thrown into the snow melting chamber, the burner is automatically ignited through the throw sensor plate. Then, when the snow melting work is started, the snow in the snow melting chamber disappears, and the snow melting work ends, the burner extinguishes. According to the ninth aspect, it is possible to forcibly suck dust such as soot floating on the water surface into the automatic submersible pump.

[0014]

Embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is a front view showing a first embodiment of the present invention.
2 is a right side sectional view of the same, FIG. 3 is a left side sectional view of the same, and FIG. 4 is a perspective view showing a state in which an embedded snow melting machine is embedded,
5 is a perspective view showing a state in which the supply pipe 33 is extended to the opening of the cooling water chamber F of the furnace body A, and FIG. 6 is a perspective view showing a state in which the wiring pipe 43 is arranged at the bottom of the snow melting tank 2. 7 is a perspective view showing a portion of the dust removing device G provided at the end of the shower pipe 32, FIG. 8 is a front view showing a second embodiment of the present invention, and FIG. 9 is a right side sectional view of the same. Similarly, 10 is a left side sectional view, and FIG. 11 is a perspective view showing a portion of the pump chamber D.

Referring to FIGS. 1, 2 and 3, the first embodiment of the present invention will be described. In an embedded snow melting machine, a portion of a snow melting tank 2 consisting of a horizontally long box-shaped main frame having an opening at the top is provided. As shown in FIG. 4, it is constructed so that it can be installed by being buried in the ground, and inside the snow melting tank 2, a burner mounting plate 25 is partitioned to form a burner chamber E and a snow melting chamber C. There is. The bottom surface of the snow melting tank 2 is inclined from one side to the other side, a burner chamber E is formed at a high position thereof, and a snow melting chamber C is formed at a low position thereof, and a pump chamber is isolated at a lowest position of the snow melting chamber C. A pump chamber D that is partitioned by the plate 23 and projects further downward is configured.

An upper lid 1 is pivotally connected to the upper rear side of the snow melting tank 2 via a hinge 19, and air is supplied to the burner chamber E at the end of the upper lid 1 on the burner chamber E side during snow melting work. An air suction section 9 for this purpose is attached. The air suction portion 9 has a vertically long box-like shape that is substantially trapezoidal in side view when the upper lid 1 is opened, and is open downward, and is rotatable together with the upper lid 1 and throws snow into the snow melting chamber C. In order to prevent the snow from entering the burner chamber E, the air inlet 9a having a circular shape in a side view is opened only on the outer side surface, and when the upper lid 1 is closed, it is stored in the burner chamber E and opened. In this state, the burner chamber E is configured to be covered together with the burner chamber lid 18 in which the air suction portion 9 is cut away.

A projecting portion 9b is provided at the front lower end portion of the air suction portion 9 when the upper lid 1 is opened, and the projecting portion 9b opens the upper lid 1 so that the snow melting operation can be performed. At this time, the main power source is automatically turned on by contacting the power source switch 16 provided inside the side surface of the snow melting tank 2 and turning on the power source switch 16. On the contrary, when the upper lid 1 is closed, the contact of the projecting portion 9b is released, the power switch 16 is turned off, and the main power is turned off. In this way, by opening and closing the upper lid 1, the main power can be turned on and off automatically.

The lid 18 of the burner chamber is attached and fixed in a state of being inclined in the direction of the snow melting chamber C via a bent portion at the upper end of the burner mounting plate 25 and a metal fitting fixedly provided inside the snow melting tank 2. Thus, even if snow is thrown onto the burner chamber lid 18, the snow is dropped into the snow melting chamber C. Also,
A stay damper 12 is provided between the upper lid 1 and the snow melting tank 2 inside the air suction portion 9, and the stay damper 12 is configured to easily open and close the upper lid 1. A handle 20 is provided at the center of the front side surface of the upper lid 1. A hook 26 (shown in FIG. 4) for engaging and locking the handle 20 so that the upper lid 1 is not easily opened when the upper lid 1 is closed is provided at the center of the front side of the snow melting tank 2. It is provided.

The upper lid 1 is made of a lightweight iron material so that it can be easily opened and closed. The weight of the upper lid 1 is reduced to 3 kg in order to make it easy for an elderly person to operate.
It is desirable to set it below), and the upper lid 1
In order to obtain sufficient strength even if a car, a person, or the like is placed on the upper surface, square pipe-shaped reinforcing members 13 and 14 are attached to the back surface of the upper lid 1 at appropriate intervals in the front-rear direction. When the reinforcement member 13 is closed, the reinforcing member 13 comes into contact with a portion of the burner chamber lid 18 that engages with the burner mounting plate 25, and the reinforcing member 14 of the furnace body A installed inside the snow melting chamber C. The above-mentioned strength is ensured by abutting on the upper part.

A burner mounting plate 25 is provided in the burner chamber E.
A burner B fixedly attached to the snow melting chamber C is provided in the snow melting chamber C, and a furnace body A horizontally supported by support plates 10 and 11 is horizontally provided in the horizontal direction. A combustion tube 5 is inserted into the furnace body A from the side surface on the burner B side, and the combustion tube 5 has a combustion section 2 of the burner B.
1 has been inserted. The furnace body A is arranged such that the lower part thereof is in a state of being submerged in the snow melting water pool W formed by the snow melting water at the bottom of the snow melting chamber C, and it is possible to avoid deformation and perforation of the burner B due to heat. Is configured. The furnace body A has a cylindrical shape, and a large number of flame outlet holes 7 are opened from the upper surface to the side surface. The flame outlet hole 7 has a small hole 7a on the upper surface and a large hole 7b as it reaches the side surface. It is configured to blow hot air from the burner B to melt the snow put into the snow melting chamber C.
The flame outlet hole 7 is not opened in a portion of the furnace body A that is flooded with the snowmelt water pool W.

A cooling water chamber shielding plate 6 is fixed to the inside of the furnace body A opposite to the side where the burner B is mounted, and the cooling water chamber F separated by the cooling water chamber shielding plate 6 is connected to the furnace body 1. The cooling water chamber F has an open upper surface, and a part of the snow introduced into the cooling water chamber F penetrates and melts through this opening, so that the inside of the cooling water chamber F is always maintained. Since the snowmelt water is present in the cooling water chamber, the cooling water chamber shielding plate 6 is prevented from being deformed or perforated by the heat of the burner B. A non-combustion oil receiving plate 8 is arranged on the side of the burner B of the burner B of the cooling water chamber shielding plate 6, and the non-combusting oil receiving plate 8 has a chevron shape in a side view, and the water surface of the snow melting water pool W. It is fixed at a position above the cooling water chamber shielding plate 6 from the tip of the combustion cylinder 5.

The upper portion of the pump chamber D is covered by a pump chamber lid 4 which is arranged in a state of being inclined toward the furnace body A, and when snow is put on the pump chamber lid 4. , The snow falls in the direction of the snowmelt water pool W. Further, the pump chamber D is partitioned in the front and rear by a partition plate 22 provided upright in the left-right direction at the center of the bottom surface,
The communication hole 2 is formed in the pump chamber shielding plate 23 at the front upper position.
3a is opened. The snow melting chamber C and the pump chamber D are communicated with each other through the communication hole 23a, and the water melted in the snow melting chamber C is configured to flow into the pump chamber D so as to coincide with the communication hole 23a. In the pump chamber D, a net basket 27 for removing dust attached to the mounting plate member 24 provided in the lateral direction is arranged.

At the bottom of the rear pump chamber D, which is partitioned by the partition plate 22 behind the net basket 27, a certain amount of water accumulates, and when it falls below a certain amount, it stops. The automatic submersible pump P is provided, and a drain pipe 28 is connected to the discharge port of the automatic submersible pump P. The partition plate 22 is set higher than the suction stop position of the automatic submersible pump P, so that the snowmelt water is discharged and the partition plate 22 is discharged.
Has a function of separating the water surface into two when reaching the upper end of the water, and at the moment when the water surface of the automatic submersible pump P is drained and the water surface falls and becomes lower than the water surface of the other side, Flows in, and as the volume increases, turbulence occurs. Therefore, dust such as soot floating on the surface of the snowmelt water becomes easy to be sucked into the automatic submersible pump P, and when the automatic submersible pump P is stopped, it becomes difficult for the dust to remain on the surface of the snowmelt water at the bottom and the dust remains. It prevents the dust from settling and the bottom of the pump chamber D becoming dirty.

As shown in FIG. 2, a drainage pipe 29 communicates with a side face of the pump chamber D to form a drainage port 29a, and a lower half of the drainage port 29a is closed by a stopper plate 30. Has been. A drainage pipe 28 is inserted into the upper half opening of the drainage port 29a and extends inside the upper portion of the drainage pipe 29, and the drainage pipe 28 is cut out in an arc shape at the center of the upper end of the stop plate 30. Partly supported by the drain pipe 2
9 is connected to the manhole 15 via a connecting pipe 31. Therefore, the snowmelt water in the pump chamber D sucked by the automatic submersible pump P and discharged from the drain pipe 28 can be discharged to the manhole 15.

The upper end of the stopper plate 30 and the lower end of the communication hole 23a of the pump chamber separating plate 23 are at the same level,
When a predetermined size is set above the lower end position of the furnace body A and a snowmelt water pool W is formed at the bottom of the snowmelt chamber C, and the automatic submersible pump P fails and cannot perform forced drainage. The upper half of the drainage port 29a serves as a drainage hole that acts as an overflow, and is configured to automatically perform natural drainage to prevent the water surface of the snowmelt water pool W from rising. It is configured so that the snowmelt water does not overflow into the burner chamber E and enter it. Further, the stop plate 30 has a function of stopping the snowmelt water from returning to the pump chamber D when the automatic submersible pump P forcibly drains the snowmelt water.

The drainage pipe 28 is connected to a shower pipe 32 via a branch pipe or the like, and the shower pipe 32 is inscribed in a U shape in plan view around the upper portion of the snow melting chamber C. The shower pipe 32 is configured to eject the snowmelt water sucked and discharged by the automatic submersible pump P in a shower shape.
Since the hot water is made by melting the snow with the heat of the burner B through the, the hot water is jetted from above so that the snow thrown into the snow melting chamber C does not stick to the side surface and stay. .

As shown in FIG. 5, the shower pipe 32 is connected to a supply pipe 33 extending from the upper opening into the cooling water chamber F of the furnace body A. The supply pipe 33 is connected to the supply pipe 33. The snowmelt water is discharged into the cooling water chamber F through the cooling water chamber shielding plate 6 heated by the burner B, and the cooling water having a temperature higher than that of the snowmelt water overflows from the opening. By exchanging the high temperature cooling water and the lower temperature snow melting water, it is possible to melt the snow introduced by the high temperature cooling water to improve the snow melting efficiency, and at the same time shield the cooling water chamber with the low temperature snow melting water. It is configured so that the plate 6 can be cooled to improve the cooling efficiency.

As shown in FIG. 7, a dust removing device G is provided at the end of the shower pipe 32. The dust removing device G has a cock 41 and a discharge port 42 opened downward.
It is composed of. The snow put into the snow melting chamber C contains a lot of dust such as cigarette butts and dog hair.
This dust is sucked with the snowmelt water by the automatic submersible pump P,
The dust removing device G is provided to remove the dust from the shower pipe 32 because the dust is discharged and sent to the shower pipe 32 to cause clogging and adversely affects the jet of the shower. This dust removal work is performed on the discharge port 4
The discharge hose is connected to 2, the discharge hose is extended to the outside of the machine, the cock 41 is opened, and dust is discharged to the outside of the machine together with the snow melting water. The dust removing device G is provided at the frontmost and rearmost ends of the shower pipe 32.

Shower pipe 3 inside the snow melting chamber C
As shown in FIG. 6, an input sensor plate S for turning on / off the operation switch 17 of the burner D by rotating under the weight of the snow put into the snow melting chamber C is provided below the unit 2. ,
One end of the input sensor plate S is axially supported by a shaft support portion 34 projecting from the burner mounting plate 25 to project toward the burner chamber E side, and the middle portion and the other end project from the wall surface of the snow melting tank 2. A rotary shaft 37 pivotally supported by the stays 35 and 36, and a rotary shaft fixed to the rotary shaft 37. The lower end of the rotary shaft 37 is biased by a spring so that the lower end is inclined obliquely downward to the furnace body A side. A plate body 38 having a shape in which the snow that is curved forward and thrown in can easily be placed
It is composed of.

An arm 37a is fixedly attached to an end of the turning shaft 37 of the closing sensor plate S protruding toward the burner chamber E, and the arm 37a is fixed to the burner mounting plate 25. Therefore, in the input sensor plate S, when snow is thrown into the snow melting chamber C, the plate body 38 rotates downward due to the weight of the snow, and accordingly, the rotating shaft 37 and the arm. 37a rotates to turn on the operation switch 17, the burner B is ignited, the snow melting work is automatically started, and when the snow in the snow melting chamber C disappears,
The plate 38 is returned to its original state by the urging force of the spring, the operation switch 17 is turned off, and the burner B is automatically extinguished.

As shown in FIG. 6, a wiring pipe 43 is provided laterally at the lower rear corner of the snow melting chamber C, and one end of the wiring pipe 43 has a cutout 2 at the lower rear corner of the burner mounting plate 25.
The pump chamber separator 23 is fixed to the notch 23b at the lower rear corner of the pump chamber separator 23. By horizontally installing the wiring pipe 43 in this manner, the burner chamber E and the pump chamber D are communicated with each other, and wiring for supplying electric power to the automatic submersible pump P can be performed.

When performing snowmelting work with the buried type snowmelter configured as described above, the upper cover 1 is opened and the power switch 16 is turned on to set the burner B and the automatic submersible pump P.
When the snow is removed and put into the snow-melting chamber C, the input sensor plate S is activated to turn on the operation switch 17, the burner B is ignited, and the introduced snow is melted by the heat. When the melted snow becomes the cooling water of the cooling water chamber shielding plate 6 and the snow melting water, the snow melting water accumulates in the snow melting water pool W, flows down from the communication hole 23a into the pump chamber D through the net basket 27, and accumulates in a certain amount or more. The automatic submersible pump P operates, the sucked snow melting water is discharged from the drain pipe 28 to the manhole 15 through the drain pipe 29, and the shower injected from the shower pipe 32 causes the snow injected into the snow melting chamber C to be on the side surface. The cooling water in the cooling water chamber F is discharged from the supply pipe 33 so that the cooling water in the cooling water chamber F overflows and is replaced.

Next, referring to FIGS. 8, 9 and 10, the second embodiment of the present invention will be described. The construction of the buried snow melting machine of this embodiment and the buried snow melting machine of the first embodiment. The snow melting chamber C in the snow melting tank 2 is divided into a first snow melting chamber C1 and a second snow melting chamber C2 by a snow melting chamber partition plate 39.
A pump chamber D partitioned by a pump chamber partition plate 40 is formed below the second snow melting chamber C2, and an upper lid 1 to which an air suction portion 9 is attached and a burner B are disposed. The configurations of the first snow melting chamber C1 and the like in which the burner chamber E and the furnace body A are provided horizontally are the same as those in the first embodiment.
However, the square pipe-shaped reinforcing members 14 attached to the back surface of the upper lid 1 to secure the strength by contacting the upper portion of the furnace body A are provided at two positions at appropriate intervals. Further, a wiring pipe 43 is laterally provided in the rear lower corner of the first snow melting chamber C1, and one end of the wiring pipe 43 is fixedly attached to a cutout portion 25b at the lower rear corner of the burner mounting plate 25, The other end is fixed to a notch 39b in the lower rear portion of the snow melting chamber partition plate 39.

As shown in FIG. 11, the pump chamber D is divided into a first pump chamber D1 and a second pump chamber D2 by a partition plate 44 which is erected in the left-right direction. The second pump chamber D2 is partitioned by partition plates 22 and 22 provided upright in the front-rear direction. A communication hole 39a is formed above the first pump chamber D1 and at the lower front side of the snow melting chamber partition plate 39.
The first snow melting chamber C1 and the first pump chamber D1 are communicated with each other through the water, and the water melted in the first snow melting chamber C1 is the first pump chamber D.
1, a net basket 46 for removing dust attached to the mounting plate member 45 projecting in the first pump chamber D1 is provided so as to coincide with the communication hole 39a. Has been done.

An automatic submersible pump P1 is provided at the bottom of the first pump chamber D1 on the other side, which is partitioned by the partition plate 22 on the side opposite to the net basket 46.
A connection pipe 47 is connected to the discharge port of No. 1, and the connection pipe 47 is communicated with a shower pipe 48 inscribed around the upper periphery of the second snow melting chamber C2, and the shower pipe 48 melts snow in a shower shape. It is configured such that water is jetted out to melt the snow put into the second snow melting chamber C2. The pump chamber partition plate 40 has a net basket 4 for removing dust.
9 is provided, the second snow melting chamber C2 and the second pump chamber D2 communicate with each other through the net basket 49, and the water melted in the second snow melting chamber C2 is supplied to the second pump chamber D2. The net basket 49 of the second pump chamber D2 is configured to flow in.
An automatic submersible pump P2 is arranged at the bottom portion on the other side, which is partitioned by a partition plate 22 on the opposite side of the above, and a drain pipe 28 is connected to the discharge port of the automatic submersible pump P2.

The partition plates 22 and 22 are set higher than the suction stop position of the automatic submersible pumps P1 and P2, and when the snowmelt water is discharged and reaches the upper end of the partition plates 22 and 22, the water surface is divided into two. In addition to that, the snowmelt water on the side of the automatic submersible pumps P1 and P2 is drained and the water surface drops at a moment when it becomes lower than the water surface on the other side. Is configured to. Therefore, dust such as soot floating on the surface of the snowmelt water is easily sucked into the automatic submersible pumps P1 and P2, and when the automatic submersible pumps P1 and P2 are stopped, dust is unlikely to remain on the surface of the snowmelt water at the bottom. At the same time, the remaining dust settles and the first and second pump chambers D1 and D2
Prevents the bottom from getting dirty.

A drain pipe 29 is communicated with a rear surface of the second pump chamber D2 to form a drain port 29a, and a lower half of the drain port 29a is closed by a stopper plate 30.
A drainage pipe 2 is provided in the upper half opening of the drainage port 29a.
8 is inserted and extends inside the upper portion of the drainage pipe 29, and the drainage pipe 28 is supported by an arcuately cut portion at the center of the upper end of the stop plate 30. It is connected to the manhole 15 via. Therefore, the drain pipe 28 is sucked by the automatic submersible pump P2.
It is configured such that the snowmelt water in the second pump chamber D2 discharged from the can is discharged to the manhole 15.

The upper end of the stop plate 30 and the snow melting chamber partition plate 3
The level with the lower end of the communication hole 39a of 9 is the same, is set up by a predetermined dimension from the lower end position of the furnace body A, and forms a snowmelt water pool W at the bottom of the first snowmelt chamber C1, When the automatic submersible pump P2 fails and forced drainage cannot be performed, the upper approximately half opening of the drainage port 29a serves as a drainage hole that acts as an overflow, and automatic natural drainage can be performed. It is configured so that it can prevent the water surface of the snow melting water pool W from rising and prevent the snow melting water from overflowing and entering the burner chamber E. In addition, the stop plate 30 turns the snowmelt water into return water during forced drainage by the automatic submersible pump P2 and becomes the second pump chamber D2.
It has a function to prevent backflow to the back.

The drain pipe 28 is connected to a shower pipe 50, which is provided in the middle of the second snow melting chamber C2, and a shower pipe 32, which is provided above the first snow melting chamber C1, through a branch pipe or the like. In addition, by blowing the snowmelt water sucked and discharged from the shower pipes 32 and 50 by the automatic submersible pump P2 in a shower shape, the snow introduced into the first and second snowmelt chambers C1 and C2 adheres to the side surface. I'm trying to keep up. The shower pipe 3
2 is connected to a supply pipe 33 extending from the upper opening into the cooling water chamber F of the furnace body A.
It is configured such that the snowmelt water can be discharged into the cooling water chamber F via the to allow the cooling water to overflow from the opening.
A dust removing device G is provided at the end of the shower pipe 32.

When performing snowmelting work with the buried type snowmelter configured as described above, the upper cover 1 is opened and the power switch 16 is turned on to set the burner B and the automatic submersible pump P.
When 1 and P2 are made operable and snow is removed and thrown into the first snow-melting chamber C1, the throw-in sensor plate S is actuated, the actuation switch 17 is turned on, the burner B is ignited, and the heat is thrown in. The melted snow becomes the cooling water of the cooling water chamber shield plate 6 and the snow melting water, the snow melting water accumulates in the snow melting water pool W, flows down from the communication hole 39a into the first pump chamber D1, and when a certain amount or more is accumulated, the automatic submersible pump P1 operates, melts the snow that is ejected from the shower pipe 48 and is thrown into the second snow melting chamber D2, and when the snow melting water is accumulated in the second pump chamber D2 by a certain amount or more, the automatic submersible pump P2 operates and the drain pipe. 28 is discharged to the manhole 15 through the drainage pipe 29, a part of which is jetted from the shower pipes 32 and 50 to prevent the snow introduced into the first and second snow melting chambers C1 and C2 from adhering to the side surface, Discharged from the supply pipe 33 into the cooling water chamber F, it is carried out swapping flooding the cooling water of the cooling chamber F.

In the buried type snow melting machine in the first and second embodiments of the present invention, a heat insulating material 52 (shown in FIG. 8) is attached to the outer side surface of the snow melting tank 2 to be buried in the ground to keep the heat. It is also possible to adopt a configuration that enhances the effect, and it is also possible to use it as a stationary snow melting machine installed on the ground.

[0042]

Since the present invention is constructed as described above, it has the following effects. That is, with the configuration according to the first aspect, since the opening / closing operation of the upper lid can be performed with a small amount of labor, it can be easily operated even by an elderly person or the like. In addition, because of the configuration according to claim 2,
There is no need to operate the conventional operation box, and the main power is automatically turned on simply by opening the upper lid so that snow melting work can be performed, so you can save time and effort before starting work and improve work efficiency. You can Further, according to the third aspect of the invention, when the upper lid is opened so that the snow melting work can be performed, the air can be supplied to the burner chamber, so that the labor before starting the work can be saved. It is possible to improve efficiency.

Further, according to the fourth aspect of the invention, the automobile or the like can be parked on the upper lid, so that the burying space of the snow melting machine can be effectively used when not working. Further, according to the structure of claim 5, the cooling water heated by the burner and having a high temperature can be used to melt the snow put in the snow melting chamber.
The snow melting ability is improved, the snow melting efficiency is improved, the snow melting time can be shortened, and the fuel cost can be saved. In addition, claim 6
With such a configuration, it is possible to prevent the shower pipe from being clogged and prevent the shower spouting from worsening.Therefore, snow will not adhere to the side of the snow melting chamber and will not be stuck, and will surely melt the thrown snow. Therefore, stable snow melting work can be performed.

Further, according to the present invention, since natural drainage can be performed even if the automatic submersible pump fails during snow melting work, the snow melting water overflows and enters the burner chamber or the like. It is possible to perform snow melting work by switching to natural drainage. Further, since the burner is automatically ignited when snow is thrown into the snow melting chamber and the burner is automatically extinguished when there is no snow in the snow melting chamber, the labor of the operator can be saved. Therefore, the work efficiency can be improved. Further, according to the ninth aspect of the invention, since dust such as soot that easily collects at the bottom of the pump chamber can be forcibly sucked and discharged by the automatic submersible pump, the dust is deposited at the bottom of the pump chamber. It is possible to reduce stains that occur, reduce the number of times maintenance is performed, and reduce labor.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a right side sectional view of the same.

FIG. 3 is a left side sectional view of the same.

FIG. 4 is a perspective view showing a state in which the buried snow melting machine is buried.

FIG. 5: Supply pipe 33 is provided at the opening of the cooling water chamber F of the furnace body A.
It is a perspective view which shows the state which extended.

FIG. 6 is a perspective view showing a state in which a wiring pipe 43 is arranged at the bottom of the snow melting tank 2.

FIG. 7 is a perspective view showing a portion of a dust removing device G provided at the end of the shower pipe 32.

FIG. 8 is a front view showing a second embodiment of the present invention.

FIG. 9 is a right side sectional view of the same.

FIG. 10 is a left side sectional view of the same.

11 is a perspective view showing a portion of a pump chamber D. FIG.

[Explanation of symbols]

 1 Upper Lid 9 Air Suction Port 9a Air Suction Port 13, 14 Reinforcing Material 16 Power Switch 17 Actuating Switch 22 Partition Plate 28 Drain Pipe 29 Drain Pipe 30 Stop Plate 32 Shower Pipe A Furnace B Burner C Snow Melting Room D Pump Room E Burner Room F Cooling water chamber G Dust removal device P Automatic submersible pump S Input sensor plate

Claims (9)

[Claims] 1. A box-shaped snow melting tank is provided with a burner room, a snow melting room and a pump room, which is buried in the ground leaving an upper opening of the snow melting tank and snow-removed snow is put into the snow melting room. , In a snowmelter that melts by heat from the burner in the burner chamber and discharges the snowmelt water with an automatic submersible pump in the pump chamber, in one upper side of the upper opening, one lightweight plate-shaped member A snow melting machine characterized in that the formed upper lid is pivotally connected. 2. The snow melting machine according to claim 1, wherein the main power is automatically turned on when the upper lid is opened so that snow melting work can be performed, and the main power is automatically turned off when the upper lid is closed. . 3. An air suction unit is attached to the upper lid according to claim 1, an air suction port is opened outside the machine body of the air suction unit, and air is sucked when the lid body is opened to allow snow melting work. The snow melting machine is characterized in that the section is exposed to supply air to the burner chamber, and the air suction section can be stored in the burner chamber when the upper lid is closed when not in operation. 4. A reinforcing material is attached to the back surface of the upper lid according to claim 1, so that the reinforcing material comes into contact with a furnace body provided laterally in the snow melting chamber when the upper lid is closed. , A snow melting machine characterized by ensuring sufficient strength even if a heavy object is placed on the upper lid. 5. The snow melting machine according to claim 1,
A part of the snowmelt water discharged is discharged into a cooling water chamber that is configured in a furnace body that is horizontally installed in the snowmelting chamber, and the cooling water heated by a burner overflows from the cooling water chamber. A snow melting machine characterized in that it is configured to melt the snow that is thrown in by using cooling water. 6. The snow melter according to claim 1,
A pipe is inscribed around the upper part of the snow melting chamber, and dust in the shower pipe is removed to a shower pipe that ejects a part of the drained snow melting water in a shower shape so that snow does not adhere to the side surface of the snow melting chamber. A snow melting machine characterized by having a dust removing device. 7. A drainage pipe is connected to one side surface of the pump chamber according to claim 1 to form a drainage port, a lower half of the drainage port is closed by a stopper plate, and an opening of an upper approximately half is formed. A drainage pipe connected to the automatic submersible pump is inserted into the drainage pipe to extend into the drainage pipe, and the upper end of the stop plate and the communication hole for communicating the snowmelt chamber and the pump chamber have the same level. A snow melting machine. 8. The snow melting machine according to claim 2,
A throw-in sensor plate that rotates with the weight when snow is thrown into the snow-melting chamber is provided, and the burner automatically ignites when the throw-in sensor plate rotates, and when the snow in the snow-melting chamber runs out, the throw-in sensor plate returns to its original state. A snow melter characterized in that the burner is automatically extinguished when returned to the position. 9. The pump chamber according to claim 1 is divided by a partition plate, and the partition plate is set higher than the suction stop position of the automatic submersible pump, and snow melting water is discharged to reach the upper end of the partition plate. So that the water surface is separated into two
Further, it is characterized in that it is configured so that the snowmelt water on the other side flows in at the moment when the snowmelt water on the automatic submersible pump side is drained and the water surface falls and becomes lower than the water surface on the other side, increasing the volume and causing turbulence. Snow melting machine.