JP3912261B2 - Snow melting machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a snow melting machine that throws in snow accumulated in passages, parking spaces, etc. of each household, melts it, and discharges it as water.
[0002]
[Prior art]
FIG. 5 shows a conventionally known snow melting machine.
This snow melting machine A is configured by disposing a combustion cylinder 2 having a base end connected to a kerosene burner 1 in a furnace body 4 installed on a bottom plate in a snow melting tank 3.
The mist-like kerosene ejected from the kerosene burner 1 burns in the combustion cylinder 2 and is ejected into the furnace body 4 as a combustion gas from the tip opening 5 of the combustion cylinder 2 to heat the furnace body 4. It ejects outward from the plurality of ejection holes 6 provided in the furnace body 4.
The snow thrown into the snow melting tank 3 is melted and discharged as water by contacting the heated furnace body 4 and blowing combustion gas ejected from the ejection holes 6. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-317035 (FIG. 1)
[0004]
[Problems to be solved by the invention]
However, the combustion gas ejected from the front end opening 5 of the combustion cylinder 2 reaches the side plate 7 of the furnace body 4 facing the front end opening 5 and heats it strongly, but close to the kerosene burner 1 of the furnace body 4. This part is only heated by the radiant heat from the peripheral surface of the combustion cylinder 2 and the combustion gas slightly circulating.
Further, although the ejection holes 6 are formed in the entire furnace body 4, the combustion cylinder 2 has the tip opening 5 penetrating to almost the center of the furnace body 4, so that most of the combustion gas is The jets are ejected from the jet holes 6 closer to the side plate 7 than the position of the tip opening 5, and the jet quantity from the jet holes 6 opened near the kerosene burner 1 is not sufficient.
Therefore, the portion of the furnace body 4 near the kerosene burner 1 has a drawback that the snow melting ability is remarkably reduced as compared with the portion near the side plate 7.
[0005]
Then, this invention aims at providing the snow melting machine which improved the snow melting efficiency conventionally compared with heating the whole furnace body uniformly and ejecting combustion gas from the ejection hole equally.
[0006]
[Means for Solving the Problems]
The snow melting machine of the present invention according to claim 1 is provided with a furnace body C in which a plurality of ejection holes 23 are opened in a snow melting tank B, and a combustion cylinder 25 is disposed in the furnace body C. In the snow melting machine configured to melt the snow introduced into the snow melting tank B by ejecting combustion gas from the kerosene burner 38 from the front end opening, the kerosene burner 38 is attached to the front side of the snow melting tank B. The guide cylinder 27 formed by closing the front end opening of the cylindrical main body 27a provided with a plurality of ejection holes 28 with a reflecting plate 27c provided with a heat insulating material 30. A reflector 27c that covers the combustion cylinder 25 and is provided with the heat insulating material 30 is disposed in the furnace body C in a state of facing the front end opening of the combustion cylinder 25; Moving wheels 15, 1 on the left and right sides of the lower front end That the kerosene tank 37 is installed and fixed to the housing D, and the legs 16 and the hand handle 17 are attached to the rear end of the snow melting tank B. It is a featured snow melting machine.
[0007]
The present invention as defined in claim 2 is characterized in that the drainage port 33 established in the bottom plate 8 of the snow melting tank B is detachably fitted with a drainage plug and communicates with the drainage pipe connection port 35; The cylindrical overflow water distribution pipe 34 standing at the bottom of the snow melting tank B and communicating with the drain pipe connection port 35 has its upper end opening positioned lower than the lower end of the guide cylinder 27. The snow melting machine according to claim 1.
[0008]
According to the third aspect of the present invention, an arm 41 having a sensor plate 42 fixed thereto is supported at a fulcrum 44 at a tip projected into the snow melting tank B, and the arm 41 is pushed up by a spring 45. 3. A snow throw detection unit 40 that biases in a direction and sends the ignition signal from the limit switch 43 to the kerosene burner 38 by rotating the arm 41 when the sensor plate 42 is pushed down. The snow melting machine described.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the snow melting machine of the present invention will be described in detail with reference to the drawings.
[0010]
B is a substantially rectangular parallelepiped shape composed of the bottom plate 8, the left wall 9, the right wall 10, the front wall 11 and the rear wall 12, and is opened from the upper surface to the upper half of the side surface (left wall 9) to serve as a charging port 13. It is a tank. The front wall 11 is provided with a through-hole 14.
The snow melting tank B is provided with a pair of left and right legs 16, 16 on the left and right sides of the lower part of the front end. A pair of left and right hand handles 17, 17 are attached to the upper end of 16 so as to be pivotable up and down by pins 18, 18.
[0011]
C is a substantially semi-cylindrical furnace body installed on the bottom plate 8 of the snow melting tank B.
The furnace body C was fixed to a bowl-shaped cover plate 19 having a substantially semicircular cross-section with the convex surface facing upward and both ends opened in the front-rear direction, and the front end opening of the cover plate 19. The front plate 21 having a substantially semicircular shape having a through-hole 20 and a rear plate 22 having a substantially semicircular shape fixed to the rear end opening of the cover plate 19 are provided. A plurality of ejection holes 23 are formed on the entire surface of the side plate 22.
[0012]
The front side plate 21 stands vertically and the rear side plate 22 inclines toward the front side plate 21, and the lower edges of the front and rear side plates 21, 22 are on the bottom plate 8 of the snow melting tank B. It is fixed.
[0013]
Reference numeral 24 denotes a burner insertion cylinder, which has a base end fixed to a later-described kerosene burner 38 and a front end side penetrating into the snow melting tank B through the through window hole 14 of the front wall 11, and the peripheral edge of the front end opening is The front surface of the front plate 21 of the furnace body C is fixed to a position surrounding the through window hole 20.
[0014]
Reference numeral 25 denotes a combustion cylinder having a diameter larger than that of the burner insertion cylinder 24. The peripheral edge of the base end opening is fixed to the rear surface of the front plate 21 at a position surrounding the through window hole 20, and the front end opening is connected to the furnace. The body C is disposed in the furnace body C so as to be located near the center in the front-rear direction.
[0015]
Reference numeral 26 denotes a shielding plate fixed in a state of passing through the combustion cylinder 25 and parallel to the front side plate 21 near the base end of the outer peripheral surface of the combustion cylinder 25. Since the outer peripheral shape is a substantially semicircular shape that just fits in the furnace body C, the inside of the furnace body C is thereby partitioned.
[0016]
Reference numeral 27 denotes a bottomed cylindrical guide tube in which the periphery of the base end opening is fixed to the rear surface of the shielding plate 26. That is, a tapered portion 27b is formed on the distal end side of a cylindrical main body 27a having a diameter larger than that of the combustion cylinder 25, and a distal end opening having a smaller diameter than the main body 27a is formed into a disk-like reflection. It is closed with a plate 27c.
The upper half of the main body 27a has a plurality of ejection holes 28 arranged so as not to coincide with the ejection holes 23 of the furnace body C. A plurality of ejection holes 29 are also formed in the upper half of the tapered portion 27b.
Further, a heat insulating material 30 having the same shape and the same size as the reflecting plate 27c is attached to the front surface of the reflecting plate 27c, that is, the innermost innermost portion of the guide tube 27.
[0017]
The guide tube 27 covers the combustion tube 25 and is disposed in the furnace body C at a predetermined interval from the bottom plate 8 of the snow melting tank B. The front surface of the reflector 27c is The combustion cylinder 25 faces the front end opening.
[0018]
Reference numerals 31 and 32 are guide tube support members in which inner ends are fixed to the left and right outer surfaces of the guide tube 27 and the outer ends are fixed to the inner surface of the furnace body C.
[0019]
33 is a drain opening established at the bottom of the snow melting tank B, into which a drain plug is detachably fitted.
Reference numeral 34 denotes a rectangular tube-shaped overflow drain pipe standing on the inner side of the rear wall 12 of the snow melting tank B, and its upper end opening is positioned lower than the lower end of the guide cylinder 27.
The drainage port 33 and the overflow drainage pipe 34 communicate with a drainage pipe connection port 35 at the lower rear end of the snow melting tank B, and a drainage pipe 36 is connected to the drainage pipe connection port 35.
[0020]
D is a housing attached to the front side of the snow melting tank B, and a kerosene tank 37 is installed and fixed on the upper side.
[0021]
38 is a kerosene burner that is housed in the housing D and is integrally provided with a blower, and an ejection cylinder 39 that ejects the atomized kerosene is inserted into the burner insertion cylinder 24 and the tip thereof is inserted. It is positioned near the front plate 21 of the furnace body C in the snow melting tank B.
The kerosene burner 38 is supplied with kerosene from the kerosene tank 37.
[0022]
Reference numeral 40 denotes a snow throwing detection unit, which fixes a sensor plate 42 bent in a substantially L-shaped side surface to the tip of an arm 41 that protrudes upward from the inside of the housing D into the snow melting tank B. A limit switch 43 is disposed opposite the base end.
[0023]
The arm 41 is supported by a fulcrum 44 and is urged in a direction to push up the sensor plate 42 by a spring 45. The base end of the arm 41 contacts the limit switch 43 unless the sensor plate 42 is pushed down. It is in a state.
When the sensor plate 42 is pushed down, the base end of the arm 41 is rotated upward to release the contact state with the limit switch 43, and an ignition signal is sent from the limit switch 43 to the control unit described later. It has come to be.
[0024]
46 is a main power switch, and 47 is an ignition switch.
When the main power switch 46 is turned on, a control unit (not shown) rotates the blower of the kerosene burner 38.
Further, when the control unit receives an ignition signal from the limit switch 43 of the snow throwing detection unit 40 when the main power switch 46 and the ignition switch 47 are on, the control unit ignites the kerosene burner 38. It has become.
[0025]
The snow throwing detection unit 40 and the control unit are not limited to those having the above-described configuration, but are replaced by other means that detects the entry of snow into the snow melting tank B and ignites the kerosene burner 38 when triggered by this. can do.
[0026]
Hereinafter, the snow melting work by the snow melting machine E of the present invention in which the housing D is attached to the snow melting tank B will be described.
[0027]
In the snow melting work, first, the snow melting machine E of the present invention is set at a desired location. For this purpose, the hand handles 17 and 17 are rotated to a substantially horizontal position and are held so that the legs 16 and 16 are lifted from the ground with the moving wheels 15 and 15 as fulcrums. Can be done by pushing and pressing.
After setting at a desired location, the hand handles 17, 17 can be lowered to a substantially vertical position.
[0028]
Next, a power cord (not shown) is inserted into an outlet, the main power switch 46 is turned on, and the blower is rotated. Further, when snow is thrown into the snow melting tank B from the charging port 13 with the ignition switch 47 turned on, the sensor plate 42 is pushed down, and the controller that receives the ignition signal from the limit switch 43 receives the kerosene burner 38. Ignite.
In addition, since the said insertion port 13 is opening large on the upper surface and the left side, the operation | work of throwing in snow can be performed easily.
[0029]
Simultaneously with the ignition, the kerosene ejected in a mist form from the kerosene burner 38 is mixed with the air from the blower and burns violently in the combustion cylinder 25, and the combustion gas is directed rearward from the front end opening of the combustion cylinder 25. And ejected into the guide tube 27.
[0030]
The combustion gas ejected into the guide cylinder 27 is guided to the tapered portion 27b outside the reflector 27c by being blown onto the reflector 27c to which the heat insulating material 30 is attached. Further, the traveling direction is changed along the tapered portion 27 b, and the gas flows backward along the inner surface of the main body portion 27 a to reach the gap between the outer surface of the combustion tube 25 and the inner surface of the guide tube 27.
Although high-temperature combustion gas is blown onto the reflector 27c, it is protected by the heat insulating material 30, so that it will not be deformed. Further, since the combustion gas that has flowed backward in the guide cylinder 27 is shielded by the shielding plate 26, the heat is not directly transmitted to the front plate 21 side of the furnace body C, and the front wall 11 of the snow melting bath B is excessive. Will not be heated.
The combustion gas is jetted out of the guide tube 27 from the jet holes 29 of the tapered portion 27b and the jet holes 28 of the main body portion 27a.
[0031]
The combustion gas is emitted from the ejection holes 29 of the tapered portion 27b and the ejection holes 2 of the main body portion 27a.
From 8...
[0032]
The combustion gas ejected from the ejection holes 29 ... of the tapered portion 27b flows slightly rearward to heat the cover plate 19 and the rear side plate 22 of the furnace body C, and then from the ejection holes 23 ... of the furnace body C. Spouts outside C.
[0033]
The combustion gas ejected from the ejection holes 28 of the main body 27a heats the cover plate 19 of the furnace body C, and then ejects outward of the furnace body C from the ejection holes 23 of the furnace body C.
[0034]
Since the ejection holes 28 of the induction cylinder 27 and the ejection holes 23 of the furnace body C are arranged so as not to coincide with each other, the combustion gas ejected from the induction cylinder 27 efficiently heats the furnace body C. .
[0035]
The snow thrown into the snow melting tank B from the charging port 13 is melted by coming into contact with the heated furnace body C and blowing combustion gas ejected from the ejection holes 23 of the furnace body C. Water is collected at the bottom of the tank B.
The water accumulated at the bottom protects the bottom plate 8 of the snow melting tank B from the heat of the furnace body C.
When the water level reaches the upper end opening of the overflow drain pipe 34, the water is discharged to the outside through the drain pipe 36.
[0036]
After the snow melting work is completed, the drain plug fitted to the drain port 33 can be removed to discharge all the water in the snow melting tank B, thereby preventing the water from freezing.
[0037]
【The invention's effect】
[0038]
According to the first aspect of the present invention, a furnace body having a plurality of ejection holes is installed in a snow melting tank, a combustion cylinder is disposed therein, and a combustion gas from a kerosene burner is provided through an opening at the tip of the combustion cylinder. In the snow melting machine that melts the snow thrown into the snow melting tank, the kerosene burner is housed in a housing attached to the front side of the snow melting tank, and a plurality of ejection holes are opened. An induction cylinder formed by closing the tip opening of the cylindrical main body portion with a reflector provided with a heat insulating material covers the combustion cylinder, and the reflector provided with the heat insulating material faces the tip opening of the combustion cylinder. Since it is arranged in the furnace body in such a state, the combustion gas ejected into the induction cylinder from the opening at the front end of the combustion cylinder is blown to the reflector of the induction cylinder, along the inner surface of the main part, Backflow.
[0039]
The back-flowing combustion gas is ejected from the ejection hole of the induction cylinder to the outside of the induction cylinder, and the entire furnace body is heated evenly. Further, the combustion gas that has heated the furnace body is ejected uniformly from the ejection holes of the furnace body.
[0040]
The present invention also provides a movable wheel that is rotatably supported on the left and right sides of the lower part of the front end of the snow-melting tank, a kerosene tank is installed and fixed to the housing, and a leg and a hand push at the rear end of the snow-melting tank. Since the handle is attached, it can be moved to a passage or parking space in each home.
[0041]
According to a second aspect of the present invention, a drain opening provided in the bottom plate of the snow melting tank is detachably fitted with a drain plug, communicates with a drain pipe connection port, and stands on the bottom of the snow melting tank. The cylindrical overflow water pipe that communicates with the drain pipe connection port has its upper end opening located below the lower end of the guide cylinder, so that it can be drained by removing the drain plug after use. Can prevent freezing.
[0042]
According to a third aspect of the present invention, an arm having a sensor plate fixed to a tip projected into the snow melting tank is supported at a fulcrum, and the arm is biased in a direction to push up the sensor plate by a spring. When the sensor plate is pressed down, the arm rotates to send an ignition signal from the limit switch to the kerosene burner, and the burner will not ignite until snow is thrown into the snowmelt tank. Therefore, it is possible to save fuel by preventing the burning of useless fuel, and it is possible to prevent idling.
[Brief description of the drawings]
FIG. 1 is a left side view of a snow melting machine according to an embodiment of the present invention.
FIG. 2 is a plan view of the above.
3 is a cross-sectional view taken along the line II of FIG.
4 is a cross-sectional view taken along line II-II in FIG.
FIG. 5 is a right side view of a conventional snow melting machine.
[Explanation of symbols]
B Snow melting tank C Furnace E Snow melting machine 23, 28, 29 Ejection hole 25 Combustion cylinder 27 Guide cylinder 27a Main part 27b Tapered part 27c Reflector

Claims (3)

A furnace body (C) having a plurality of ejection holes (23...) Is installed in the snow melting tank (B), and a combustion cylinder (25) is disposed therein, and the tip of the combustion cylinder (25). In the snow melting machine configured to melt the snow introduced into the snow melting tank (B) by ejecting combustion gas from the kerosene burner (38) through the opening,
The kerosene burner (38) is accommodated in a housing (D) attached to the front side of the snow melting tank (B),
The induction cylinder (27) formed by closing the tip opening of a cylindrical main body (27a) having a plurality of ejection holes (28 ...) with a reflector (27c) provided with a heat insulating material (30) A reflector (27c) covering the cylinder (25) and provided with the heat insulating material (30) is disposed in the furnace body (C) in a state facing the tip opening of the combustion cylinder (25). Being
The moving wheels (15, 15) are rotatably supported on the left and right sides of the lower front end of the snow melting tank (B),
The kerosene tank (37) is installed and fixed to the housing (D), and
A leg (16) and a hand handle (17) are attached to the rear end of the snow melting tank (B);
A snow melting machine characterized by. The drain opening (33) established in the bottom plate (8) of the snow melting tank (B) is detachably fitted with a drain plug and communicated with the drain pipe connection opening (35); and
A cylindrical overflow water distribution pipe (34) standing at the bottom of the snow melting tank (B) and communicating with the drain pipe connection port (35) has an upper end opening lower than the lower end of the guide cylinder (27). The snow melting machine according to claim 1, wherein the snow melting machine is located at a location. An arm (41) having a sensor plate (42) secured to a tip projected into the snow melting tank (B) is supported by a fulcrum (44), and the arm (41) is supported by a spring (45). The plate (42) is urged in the upward direction, and when the sensor plate (4 2 ) is pushed down, the arm (41) is rotated and an ignition signal is sent from the limit switch (43) to the kerosene burner (38). The snow melting machine (1) according to claim 1 or 2, further comprising a snow throwing detection unit (40) for sending out the snow.

Images