JPS6120100Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention compresses snow from a snow blower into a spherical snow mass, and then presses it into a pressure pipe that has heating and heat retention functions while using a pumping fluid such as pressurized water or compressed air. This invention relates to a pumping device for snow removal that smoothly pumps snow to a dumping site and performs snow removal work simply.

In conventional snow removal operations, snow that has been shoveled up by snow blowers or by hand is either dumped directly on the edge of railroad tracks, or loaded onto rental cars or trucks and dumped into rivers, etc. . However, in the case of loading and unloading on rental vehicles, the snow has a disadvantage in that it takes up a large amount of space because the density of the snow is low, and furthermore, it requires a lot of time and manpower to load and unload the snow.

The present invention has been made to solve the above-mentioned drawbacks, and will be described in detail below with reference to the drawings.

FIG. 1 is a partial cross-sectional view showing an embodiment in which a snow blower is used, high-pressure water is used as the pumping fluid, and the snow throwing device section of the present invention is used to throw snowpack into the middle of the pumping pipe; Fig. 2 is a partial cross-sectional view showing an example in which the snow throwing device shown in Fig. 1 is used at the end of a pressure pipe, and Fig. 3 shows a preliminary chamber of the snow throwing device located directly below the hopper and a compressor. It is a partial sectional view showing an example when only one side of the piston is movable.

In FIG. 1, 5 and 5' are integrated compression cylinders, inside of which are a pair of compression pistons 4 for compressing the snow that has fallen from the hopper 8.
4' are provided symmetrically opposite each other. The heads of the compression pistons 4, 4' are formed into hemispherical recesses, and the water supply ducts 6, 6' are communicated with the heads. A piston driving section for driving these compression pistons 4, 4' synchronously according to the compression stroke is comprised of a hydraulic unit 1, hydraulic switching valves 2, 2', and compression piston hydraulic rams 3, 3'. A preliminary chamber 11 is provided at the bottom of either of the compression cylinders 5, 5' which are located off the center of the hopper 8.
1, the compression cylinders 5, 5' are driven by the piston drive unit.
The snowpack 26 formed inside is temporarily accommodated. A pre-pressure chamber 13 connected below the preliminary chamber 11 via a cylindrical valve 12 has a water pipe 17 equipped with a water supply switching valve 14 and an accumulator 15, and a drain pipe 18 equipped with a drainage switching valve 16. .
A cylindrical valve 12' and a joining flange 21 are connected to this precompression chamber 13, and the above-mentioned hopper 8, compression pistons 4, 4', compression cylinder 5,
5', pre-chamber 11, pre-pressure chamber 13, cylindrical valve 1
2, 12', etc. constitute a snow throwing device section.

The snow charging device section is joined to the pressure pipe 19 at an arbitrary point, and is connected to the preload chamber 1 through the joining flange 21.
The snowpack 26' that is press-fitted from 3 is forced to be fed by high-pressure water flowing inside the pressure-feeding pipe 19.

Reference numeral 21' denotes a joint flange for the pressure feeding pipe 19 at the mounting position of the snow throwing device section, and 20 indicates a sheathed heater for keeping the pressure feeding pipe 19 warm. Also, continuous points a in the hydraulic unit 1,
a' indicates the same corresponding position.

In the above configuration, the input direction of the pressure oil from the hydraulic unit 1 is switched by the hydraulic switching valves 2, 2', and reaches the compression cylinder hydraulic rams 3, 3'. 4' is given a reciprocating motion in the opposite direction, and the snow thrown from the snow throwing nozzle 10 of the snow blower 9 into the snow throwing hopper 8 at the top of the compression cylinders 5 and 5' as shown by arrow A is compressed into a spherical snow mass. Make it.

The spherical snowpack thus formed stops directly above the preliminary chamber 11 by the horizontal movement of the compression pistons 4, 4', and after being displaced to the left and right by more than the radius of the snowpack, it is switched. valve 7,
Snow is thrown into the auxiliary chamber 11 by the water pressure from the water supply ducts 6, 6' by switching the switch 7'. When the cylindrical valve 12 is fully opened, the spherical snow mass 26 thrown into the preload chamber 11 is moved by gravity to the preload chamber 13 directly below it. Thereafter, the cylindrical valve 12 and the drainage switching valve 16 are closed, and the water supply switching valve 14 is opened to prepressurize the prepressure chamber 13, and at the same time, energy is stored in the accumulator 15 in the form of a pressure head.
Next, the water supply switching valve 14 is closed, and the cylindrical valve 1 is closed.
2' is suddenly fully opened, the snow mass 26' is forced into the pipe 1.
9 using water pressure. Thereafter, the cylindrical valve 12' is closed, and after the prepressure chamber 13 is completely drained, the drainage switching valve is closed. 26'' is a spherical snow mass being forced into the feeding pipe 19, and 27 and 28 are the inflow and outflow of high-pressure water in the feeding pipe, respectively.

FIG. 2 is a partial cross-sectional view showing the snow throwing device shown in FIG. 1 installed at the end of the pressure pipe 19.

A flange 21″ for the end of the pressure pipe 19 is provided at the end of the pressure pipe 19, and the high pressure water from the water pump 24 is intermittently or continuously transferred from the pressure water inlet 22 into the pressure pipe 19 by switching the switching valve 23. Water is sent to

FIG. 3 is a partial sectional view showing another embodiment partially different from the embodiment of the snow throwing device shown in FIG. 1.

That is, the preparatory chamber 11 is provided at the bottom of the compression cylinder 5 directly below the hopper 8 via a shutter 25 installed at the bottom of the hopper, which can be opened and closed, and the parts corresponding to the compression piston 4' and the compression cylinder 5' shown in FIG. A fixed wall 4'' is formed, and a hemispherical recess similar to the compression piston 4 is formed on the surface of the fixed wall 4'' facing the compression piston 4, and a water supply duct 6' communicating with the recess is provided. be.

In the snow throwing device section configured as described above, the spherical snow mass formed by the interaction between the compression piston 4, which reciprocates in the compression cylinder 5 from side to side, and the fixed wall 4'' is formed by the compression piston 4. The snow mass is thrown into the preliminary chamber 11 by a backward displacement equal to or greater than the radius of the snow mass, water supply action by the water supply ducts 6 and 6', and opening of the shutter 25.The following operations are the same as in the embodiment shown in FIG.

The pumping device of the present invention forms the snowpack into a spherical shape and utilizes rolling contact motion of the snowpack in the pumping pipe, thereby making it possible to pump the snowpack with little pressure loss. In addition, with a relatively simple mechanism, it is possible to quickly pump snowflakes from any intermediate position of a long pressure pipe laid along railroad tracks, etc., regardless of whether the distance is long or short. It is possible to easily dispose of the snow that accompanies it.

Although high-pressure water is used in the present invention, if the pressure pipe is not long, the same effect can be expected by using high-pressure air or the like.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional view showing the configuration of the present invention;
The figure is a partial sectional view showing the snow throwing device section attached to the end of the pressure pipe, and FIG. 3 is a partial sectional view showing another embodiment of the snow throwing device section that is partially different from FIG. 1. The same reference numerals in the figures indicate the same or corresponding parts. 1... Hydraulic unit, 2, 2'... Hydraulic switching valve, 3, 3'... Hydraulic ram for compression piston, 4,
4'...Compression piston, 4''...Fixed wall, 5,5'
...Compression cylinder, 6,6'...Water duct,
7, 7'...Switching valve, 8...Hopper, 9...Snow blower, 10...Snow removal nozzle, 11...Preparation room, 1
2, 12'...Cylindrical valve, 13...Prepressure chamber, 1
4... Water supply switching valve, 15... Accumulator, 16... Drainage switching valve, 17... Water transmission pipe, 18... Drainage pipe, 19... Pressure feeding pipe,
20... Sheathed heater, 21, 21', 21''...
Flange, 22...Pressure water inlet, 23...Switching valve, 24...Water pump, 25...Shutter, 2
6, 26', 26''... Snow mass, 27... Inflow of high pressure water, 28... Outflow of high pressure water.

Claims (1)

[Scope of utility model registration request] A hopper for throwing snow into the hopper and a pair of compression pistons each having a hemispherical concave head formed inside the hopper and a water supply duct communicating with the concave are symmetrically opposed to each other, and the snow falling from the hopper is collected. A compression cylinder provided so as to be compressible, a piston drive section consisting of a hydraulic unit, a hydraulic switching valve, and a ram for the compression piston, which drive both the compression pistons in synchronization according to the compression stroke, and A preliminary chamber provided at the bottom of the detached compression cylinder, a water pipe connected to the lower part of the preliminary chamber via a first valve, and equipped with a water supply switching valve and an accumulator, and a drainage switching valve. A snow injecting device section consisting of a precompression chamber having a drainage pipe and a second valve connected to the precompression chamber; and a snow injecting device section connected to the snow injecting device section, which drains the snowpack press-fitted from the precompression chamber with high pressure water or 1. A pressure-feeding device for snow removal, comprising a pressure-feeding pipe that pumps fluid using high-pressure gas.