JPS6327606A - Snow removing method and apparatus - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a snow removal device, and more particularly to a snow removal device that can predict the causes of falling snow and avalanches and automatically remove the factors before such disasters occur. Regarding.

Conventional technology Traditionally, facilities were used to prevent disasters caused by lightning strikes, avalanches, etc.
It is widely known to provide snow fences, step-cuts, shelters, etc.

However, apart from natural shelters, these disaster prevention facilities against snow cannot be used if the amount of snow exceeds expectations due to changes in weather conditions at the time of snowfall. As temperatures change due to rainy weather, the condition of the S snow layer also changes, leading to avalanches and lightning strikes.As they are extremely reluctant to face the harshness and changes of the natural environment, adverse conditions are compounded synergistically. In the case of a snow avalanche occurring at an unexpected time, the surface layer or the entire layer may become a spot or surface avalanche. They often destroy prevention facilities and cause debris flows, resulting in large economic losses such as the destruction of community roads and the collapse of barbershops, as well as sometimes resulting in personal accidents.

Conventionally, in areas with heavy snowfall, when a dangerous situation such as a lightning strike or avalanche occurs, a method of removing snow from dangerous areas is, for example, removing snow by leaning on the road surface or along the road. However, artificial removal of large amounts of snow and snow that has accumulated in the extreme areas where these dangers are likely to occur always involves danger, so snow removal must be carried out carefully and in a planned manner. However, avalanches may be triggered due to snow removal or during snow removal operations.

Currently, the work of removing large amounts of snow from snow eaves and roofs of private houses that forms on ridgelines is hard and dangerous work, and there are many problems as there is no suitable method for removing this safely and easily. This is the actual situation.

Problems to be solved by the invention In regions with heavy snowfall during the snowy season, the amount of snowfall increases or decreases depending on the atmospheric pressure distribution, wind direction, wind speed, jet stream, range trends of cold air masses, temperature, etc., as well as geographical characteristics. Furthermore, the quality of snow changes due to the weather after snowfall and changes in temperature due to weather conditions, and there are many factors that can trigger avalanches due to falling snow, snow eaves, etc., and lightning strikes.

However, as mentioned above, conventional snow damage prevention technology
Depending on the amount of snow at hand, based on our experience, we simply remove obstacles to daily necessities and safely and proactively remove factors that may cause a disaster. Efforts to respond to objective weather conditions and overcome them have been extremely passive.

In view of the above, the present invention proactively and scientifically comprehensively evaluates weather conditions at the time of snowfall, removes snow before snow eaves and snowfall reach the critical limit for the level of danger, and prevents lightning strikes and avalanches from occurring. The object of the present invention is to provide a snow removal method and a snow removal device that can prevent snow removal from occurring.

Means for Solving the Problems As shown in FIGS. 1 and 2, the invention of the present application includes a snow removal device main body and a pressure supply mechanism that communicates with each other via a fluid pressure circuit consisting of a suitable injection pipe and a discharge pipe. The snow removal device is operated by controlling the supply pressure mechanism according to the set amount of snow accumulation by visual inspection or by the sensitivity of the snow detector, and the snow removal device is sequentially removed from the snow removal device itself. It is a technical measure to prevent disasters.

Therefore, the feature of the present invention is (α). The main body of the snow removal device forms a plate-like or bag-like unit with an appropriate divided area, and is used as a permanent facility for removing snow eaves and is detachable for general slope snow removal. Install freely.

(4) The unit communicates with the pressure supply mechanism through a supply pressure and exhaust pressure circuit including a fluid pressure injection pipe and a discharge pipe, either manually or automatically. It includes a detector program discrimination device, a pressure supply device, an air dryer, a drain, etc., and issues control signals in response to the snowfall detector.

(d) The units may operate independently or jointly, simultaneously or in a timed manner, and the angle of attack or depression applied to the plate-shaped unit may be varied as appropriate.

(4) When the unit removes snow from the bottom level, it removes snow from the top unit, when it removes snow from the top level or from the top level, and when it removes snow only from the top level. There are cases.

l) In particular, the plate-like unit is equipped with a snow shearing mechanism to shear or crack the snow to at least the size of the unit.

The present invention is based on the invention of Japanese Patent Publication No. 58-385 filed by the same applicant.
No. 78 (Patent No. 71112.t) 5t) No. 41) and related to an improved invention of the invention of Japanese Patent Application No. 18553/1983.

Function: In the snow removal device of the plate-shaped unit based on the automatic control system according to the present invention, when the snowfall detector reaches a set limit of snowfall, a signal responsive to the snow removal device is transmitted to the program discrimination device.

The program discrimination device identifies the signal from the snow detector and transmits a command to the pressure supply device. The pressure supply device operates based on its command control and injects fluid pressure into a predetermined unit bag or pressure cylinder. The snow shearing mechanism installed in each unit uses fluid pressure to inject or rotate to shear and separate the snow on one unit from the snow on an adjacent unit, and then expands the bag or causes the cylinder to form a plate-like structure. The unit uses a bag to shear surrounding snow, and when using a bag, the rear part is pushed up from the fulcrum, promoting the formation of cracks in the area where the depression angle is applied. This vibration causes the snow behind the car to crack and cause the car to slide down.

In this way, snow removal is performed sequentially from the highest unit to the lowest unit, contrary to the case in which snow is removed from the highest unit.

The configuration of the present invention will be described in detail below with reference to the attached drawings showing embodiments.Embodiment 1 Fig. 1 of the attached drawings is a system explanatory diagram of the pressure supply mechanism of the present invention, Fig. 2
The figure is an explanatory diagram of the arrangement of the snow removal device main body.

In the drawings, ridges or slopes in mountainous areas, and other areas
On the roofs of buildings such as offices, warehouses, buildings, etc., we take into consideration the topography, slope angle, area, etc. before snowfall, and place the ridges in locations where snow eaves are expected to form. The third
As shown in FIG. 4, plate-shaped snow removal bodies are arranged as units 14, and bag-shaped snow removal bodies are arranged as units 14 at points where the foot of the mountain is relatively gently sloped. However, for example, if the slope is long and it is judged that it is difficult to remove snow from the slope with two sets of snow removal units 14. It is desirable to appropriately arrange the snow removal unit 14 or 1 in the intermediate portion as needed. As mentioned above, snow removal unit) 1a,
A fluid pressure circuit 4 consisting of a fluid pressure supply pipe 2 and a fluid pressure discharge pipe 3 is disposed between each arranged snow removal body unit 1α, 14 with the combination of 14 as a block, and communicates with each other to form a snow removal device. A main body 5 is constructed, a safety zone is selected near the snow removal device main body 5, a pressure supply mechanism 6 is provided,
The pressure supply device 7 of the pressure supply mechanism 6 is communicated with the fluid pressure circuit 4 of the snow removal device main body 5, and when the topography and snow conditions reach a situation that requires snow removal, the pressure supply device 7 of the pressure supply mechanism 6 is connected manually or by automatic control described later. The pressure supply mechanism 6 is operated to first remove the accumulated snow on the plate-shaped snow removal unit 1a arranged at the top level, and then the snow on the bag-shaped snow removal unit 14 at the lower level is sequentially removed. Conversely, after removing the snow on the plate-shaped or bag-shaped snow removal unit y ) i 4 placed at the lowest level, the snow removal unit 1a placed at the top level is sequentially removed through the higher level units. It will be configured to remove snow.

Therefore, as shown in FIG.
1) In the case where the mountain top side is a ridge and the mountain foot side is a relatively gentle slope, the plate-shaped snow removal body unit 1a is placed on the ridge part under terrain where snow eaves are expected to form on the ridge part. However, it is preferable that the bag-shaped snow removal body unit 14 be placed at the foot of a mountain, and furthermore, as shown in FIG. 3k, the topography is
For example (2), in the case where the top of the mountain has a relatively gentle slope, the foot of the mountain has a relatively steep slope, and the terrain is along a road, the bag-shaped snow removal unit 14 is placed on the top of the mountain,
Plate unit 1α or Figure 7 4 along the road at the foot of the mountain.
As shown in the figure, a plate-shaped snow removal body unit 14' is formed by providing a fulcrum 8 on a plate-shaped unit 1-1a and bending the plate-shaped unit 1-1a to give an angle of attack α or angle of depression β of 10 to 30 degrees to its short side 9. It is desirable to place

This means that in the case of the topography (1) above, when the snow eaves formed on the ridge collapse naturally and slide down on the snow below, the impact can trigger avalanches of houses and cause a large amount of damage at unexpected times. This is because there is a risk of damage caused by
At a topographical point under such conditions, the plate-shaped snow removal body 22) 14 placed at the top level is activated first to remove snow before a natural lightning strike, and the impact of the snow removal causes the slide of the lower pile. It is beneficial for snow removal efficiency to remove snow from all slopes in the area by sequentially operating the bag-shaped snow removal unit 14 at the lower level, as well as from the viewpoint of damage prevention. This is because it was found through experiments.

Next, if the terrain is like (2) above,
1tL or 7th plate-shaped snow removal unit is installed along the road at the foot of the mountain.
By arranging the units IQ' in Figures a and 4, accumulated snow or snow eaves often occur on the plate-shaped snow removal body unit y) 1a or 1α', so snow accumulations or snow eaves are created along the roadside. In many cases, the plate-shaped snow removal unit 1a or i a' is placed at the lowest level, and the plate-shaped snow removal unit 1a or i a' is placed at the lowest level, and The snow removal unit 1eL or 1a' is activated to remove snow to prevent traffic obstruction, and then the bag-shaped snow removal units 14 arranged at higher levels on the mountaintop side are activated to prevent the vehicle from sliding toward the foot of the mountain. The snow is removed, and the bag-shaped snow removal unit 14 at the top level on the mountaintop side is sequentially operated to remove accumulated snow on the entire slope.

In this case, it has been found that the snow on the upper level is easily and efficiently removed because the snow on the lower level has already been removed by the above operation.

Next, the relationship between the snow removal device main body 5 and the pressure supply mechanism 6 in the present invention is as shown in FIG. The pressure supply mechanism 6 is mounted on a self-propelled vehicle that waits in a safe zone convenient for moving to the installation location of the snow removal device body 5, and when snow removal becomes necessary, the self-propelled vehicle is quickly moved to the site. The fluid pressure circuit 4 of the snow removal device main body 5 and the pressure supply device 7 of the pressure supply mechanism 6 are connected to each other, and fluid pressure is supplied and removed to create a plate-shaped snow removal body installed on site. ．． Alternatively, by intermittently displacing the inclination angle of 1 or / or expanding and contracting the bag-shaped snow removal unit 1, cracks are formed in the snow cover above each snow removal unit 1a to 1, and the snow removal units 1a to 1 are caused to slide down. , remove snow from slopes to prevent natural occurrences such as lightning strikes or avalanches.

Therefore, when removing snow from relatively small-scale sloped surfaces in residences, warehouses, offices, etc., it is recommended to arrange the fluid pressure circuit 4 in a plate-shaped or bag-shaped snow removal unit. , a compressor 13 is permanently installed as the pressure supply device 7 and connected to the fluid pressure circuit 4, or the compressor 13 is movably connected as necessary to supply or remove fluid pressure to operate the snow removal device main body 5. Furthermore, the pressure supply mechanism 6 installs the snow removal device main body 5 on slopes in mountainous areas and other relatively large slopes along major traffic routes where lightning strikes and avalanches are likely to occur. Select a safe zone near the point where the fluid pressure circuit of the snow removal device main body 5 is installed, or install the pressure supply mechanism 6 permanently in a self-propelled vehicle, keep it on standby, and move it to the snow removal site as necessary. 4 and the pressure supply device 7 of the pressure supply mechanism 6 are connected to each other to supply or remove fluid pressure to remove snow.

In the above snow removal method, the method for removing snow accumulated on the snow removal units 1a to 16 is different from the method of causing cracks in the snow accumulated on the snow removal units by displacement of the inclination angle or expansion and contraction of the snow removal units 14 to 14. In this embodiment, injection nozzles 12 are connected to the fluid pressure circuit 4 and installed in a line in the periphery of the snow removal unit or at an appropriate position, and fluid pressure is injected to at least the snow removal unit. It is also possible to remove snow by shearing the snow on top and the adjacent snow, and then causing the snow removal unit to undergo angular displacement (ILI) or expansion and contraction to cause the snow to slide down.

(However, illustration is omitted.) Therefore, the plate-shaped snow removal body unit 1a of the snow removal device main body 5
11tL' is formed into a plate shape by integrally bonding a metal plate such as iron or aluminum to a suitable frame 11, and the bag-shaped snow removal body unit 1b is made of a flexible rubber or synthetic resin sheet with airtightness. , formed into a bag-like shape with a hollow part made of synthetic leather, etc., provided with mounting parts such as holes 14 on the edges, and further formed into a bag-like shape with the above-mentioned plate-shaped snow removal bodies 1α, 14'. It is also possible to form the snow removing body 1b by airtightly connecting them to each other (FIGS. 6 to 8).

In the configuration of the fulcrum unit including the above-mentioned fulcrum 8,
In yet another embodiment, as shown in FIG. 7, 4k, the material of the short side part 9 of the plate-shaped body formed to be rotatable about the fulcrum 8 is different from the material of the long side part 10. It can be formed integrally from the material.

For example, the long side portion 10 may be made of an iron plate or an aluminum plate, and all or part of the short side portion 9 may be made of rubber having appropriate unevenness or a metal material with a rough surface. It is also possible to create a structure that prevents snowfall from being struck by lightning as much as possible.

As a result, in the case where the short side part 9 is given an depression angle β, there is little risk that the snow on that part will fall completely, and by changing the inclination angle of the plate-shaped snow removal body, the short side Since the inclination angle of the portion 9 is deeper than that of the long side portion 10, it has been found that the angular displacement does not cause any damage such as the upper side of the portion sliding down by m depth.

Next, in the configuration of the plate-like derotating body unit in which the cylinder 18 is combined, as shown in FIGS. 9(cL) and (k),
A plurality of cylinders 18 (number 41 in the figure) are connected to the lower surface of the plate-shaped snow removal body, and are communicated with the fluid pressure circuit 4, so that one of the plurality of cylinders 18 in the downward direction of the slope Lift the cylinder 18 before the cylinder in the upper direction of MM (it is preferable to at least exceed the height of the snowfall below) and lift the plate-shaped snow removal body unit 1c.
After dividing the snowfall on L from the adjacent tsunami, the cylinder on the upper side of the slope is raised higher than the cylinder on the lower side, and then the cylinder on the lower side of the slope is lowered to deepen the slope. You can also slide it down.

In this case, the configuration is such that the undulations of the cylinders are not only operated alternately in the vertical direction, but also alternately or irregularly in the left and right directions or in the upper and lower diagonal directions to create cracks in the snow and promote its sliding. It is also possible to do this.

Furthermore, as another embodiment of the structure of the snow removal body unit, a snow protection plate 26 is rotatably attached to the end of the plate-shaped body on the mountain top side, as shown in FIG. 8 ('LL (4)). The snow protection board 26 may be configured to slide on a sliding board 27 provided at the lower part of the snow protection board 26 to prevent snowflakes and the like from falling from the mountain top side end when the board is lifted up. can.

Both the plate-shaped snow removal body unit 1a and the bag-shaped lightning removal body unit 14 formed as described above are mounted on a mounting base 15 installed at a location such as a slope or on a roof (the figure shows a slope in a mountainous area). It is removably attached through the connector.

Next, the fluid pressure circuit 4Fi is desirably buried underground along the mounting base 15 of the snow removal device main body 5, and the fluid supply pipe 2 and discharge pipe 3 are connected to the direction switching valve 17 and the check valve 17.
'Each unit 1J through '! It is arranged between the bag-like bodies or cylinders 18 of R and communicates with each other, and is connected to a separately provided pressure supply mechanism B described later.

That is, it is desirable to install the pressure supply mechanism 6 in a snow-damaged safe area near the slope or building where the snow removal device main body 5 is normally installed, and the pressure supply mechanism 6 is installed only in the compressor 13 or in the vicinity of the building. Accordingly, the pressure supply device 7 includes a snow detector 19, a program discrimination device 20, a compressor 13, a pressure discharger 21, and a pressure vessel 22.

As described above, the pressure supply mechanism 6 and the snow removal device main body 5 are communicated through the fluid pressure circuit 4, and when the program discrimination device 20 receives a signal from the snow detector 19 and/or the seismic sensor 25 during snowfall, the discrimination device 20 recognizes this, transmits a command to the pressure supply system [7, and applies the fluid pressure to the bag body 1J of the snow removal device main body 5! ,,
Alternatively, the fluid is supplied to the cylinder 18 of the plate-shaped body 14, and the bag body 14 is inflated and contracted by the fluid pressure, or the cylinder 18 is moved forward and backward, thereby changing the inclination angle of the plate-shaped snow removal body unit of the snow removal device main body 5 or the bag body 1k. By expanding and contracting, cracks are created in the snow on the snow removal device main body 5,
Further, the expansion and contraction are repeated, or the inclination angle is changed,
The snow on the snow removing device main body 5 is caused to slide downward, and the snow falling located below is also removed by the impact of the sliding.

Therefore, the program determination device 20 includes condition settings that are created in accordance with the situation at the installation point of the snow removal device main body 5, such as a snow removal device unit placed at the top level or the bottom level among the snow removal device units of the snow removal device main body 5. The structure is such that the order in which fluid pressure is to be supplied to the snow removal unit arranged at the position, the number of repetitions of expansion and contraction, and other necessary matters are stored and the operation is automatically controlled to remove accumulated snow.

Example 2 In the configuration of the above pressure supply mechanism B, as another example,
In addition to snow detectors, program discrimination devices, and pressure supply devices,
It is also possible to combine configuration techniques such as the seismic sensor 25, air dryer 23, drain 24 circuit, etc.

As a result, the pressure supply mechanism 6 in this case operates the program discrimination device 20 not only based on the information from the snow detector 19 but also based on the information emitted by the seismic sensor 25. The dust removal is performed by the discrimination operation of the program discrimination device 20 based on the earthquake information before the occurrence of a natural lightning strike or avalanche that is likely to occur due to cracks formed in the snow on the slope. You can also do that. Furthermore, by connecting the air dryer and drain circuit, the fluid is well dehumidified and dust removed, so the fluid temperature under equal pressure is not lowered and rust is introduced, preventing damage caused by freezing of the injection nozzle hole. can be prevented.

Embodiment 3 Furthermore, in the configuration of the pressure supply mechanism 6 described above, instead of installing the pressure supply mechanism 6 near the installation point of the snow removal device main body 5, this is mounted on a self-propelled vehicle, and the snow removal device is installed in the standby place. Information from snow detectors 19 or seismic sensors 25 installed at the installation point of the main body 5 and other suitable locations is received, and based on the information, the vehicle equipped with the pressure supply mechanism B is moved to the installation site of the snow removal device main body, and its supply It is also possible to have a configuration in which the pressure device 6 and the fluid pressure circuit 4 are communicated with each other, and the program discrimination device 20 is operated in the same manner as described above to perform snow removal.

(However, illustration is omitted) Effect of the invention Since the present invention has the above configuration, it has the following effects.

(eL) Since it is installed and installed in advance before snowfall, the inclination angle of the plate snow removal unit or bag snow removal unit can be adjusted visually or based on the signal from the snow detector when the amount of snow reaches a state that requires snow removal. Intermittent displacement or expansion/contraction can cause cracks in the snow, making it more effective for the snow to slide down.

(h) Since the snow removal boards are arranged according to the terrain, snow removal operations are safe and effective because the snow removal units are sequentially slid down from either the top or bottom snow removal unit on the slope. be.

(-1 When installed on a slope in a mountainous area, the program discrimination device automatically issues a control command based on the signal from the snow detector to activate the pressure supply device to remove snow immediately, or
Based on the signals from the snow detector and seismic sensor, a vehicle equipped with a pressure supply mechanism on standby is moved to the snow removal site and the pressure supply mechanism is connected and operated to remove snow, so if snowfall exceeds a set amount. In other words, disasters can be prevented by removing the risk factors of natural lightning strikes or avalanches before they occur.

(d) Since the snow removal operation uses fluid pressure, it is labor-saving and extremely safe compared to conventional high-altitude snow removal operations.

(4) The main body of the snow removal device is simple in structure, relatively lightweight, and easy to disassemble and connect, making it convenient and economical to transport.Also, since it can be attached and removed, maintenance and inspection are easy and reliable. It has various industrial effects such as high

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the system of the pressure supply mechanism of the present invention, Fig. 2 is an explanatory diagram of the arrangement of the snow removal device main body, Fig. 3 a14 is an explanatory diagram of the arrangement of the snow removal equipment main body showing an embodiment Fig. 4-ii 4 is a plan view of the plate-shaped snow removal body unit, FIG. 4 is a sectional view taken along line A-A in FIG. A cross-sectional view taken along line B-B in figure a,
Fig. 6 is an explanatory sectional view showing an embodiment of a snow removal unit that combines a plate-like body and a bag-like body, and Fig. 7 α, 6 shows a plate-like body and a bag-like body that have an angle of attack or an angle of depression. FIG. 8a is a side view of the combined snow removal unit, FIG. 8a is a plan view of the snow removal unit provided with a snow protection plate at the end, FIG. FIG. 9A is a plan view of a snow removal unit in which a plurality of cylinders are combined with a plate-like body, and FIG. 9A is a sectional view taken along the line D-D in FIG. 9A. Explanation of symbols 1 tL, la: : Plate-shaped snow removal body 18 Niji Linda-1ne : Bag-shaped snow removal body 19 : Snow detector 2
:Fluid supply pipe 20 Nibrogram discrimination device 3
: Fluid discharge pipe 21 : Pressure discharger 4 : Fluid pressure circuit 22 : Pressure vessel 5 : Snow removal device body 23 : Air dryer 6 : Pressure supply mechanism 24
: Drain 7 : Pressure supply device 25 : Seismic sensor 8
: Support point 26 : Snow protection plate 9 : Short side
27: Length plate 1〇 Two long sides 11: Frame Body α: Angle of attack β: Angle of depression 12: Injection nozzle 13: Compressor 14: Hole portion 15: Mounting base 16: Mounting bracket Fig. 4 (a) Fig. 4 ( b)! l: fp (i Fig. 5(a) Fig. 5(b) Fig. 6

Claims (1)

[Scope of Claims] (1) A snow removal device is installed on a ridge in a mountainous area, on a slope, or on the roof of a building, etc., by installing a unit of a plate-shaped snow removal body or a bag-shaped snow removal unit, which is provided with an appropriate area in advance before snowfall. The present invention is characterized in that the snow removal device is mounted as a main body, and the slope angle of the snow removal unit is sequentially changed or the expansion and contraction of the snow removal unit disposed at the lowest level or the highest level of the snow removal device body is intermittent through fluid pressure. How to remove snow on slopes. (2) By connecting the injection nozzles in a line to the fluid pressure circuit arranged around the snow removal unit or at an appropriate position and injecting fluid pressure, it is possible to reduce the amount of water on the snow removal unit 2. A method for removing snow on a slope as claimed in claim 1, characterized in that the snow removal unit and the snow removal adjacent thereto are sheared, and then the snow removal unit is moved in its inclination angle or expanded and contracted. (3) Based on visual observation or a signal from a snow detector, the control device of the pressure supply mechanism is operated to change the mode of the snow removal body unit to remove snow.
Snow removal method on slopes described in section. (4) Based on the signals from the snow detector and/or seismic sensor, a self-propelled vehicle equipped with a pressure supply mechanism is moved to the snow removal site, and the pressure supply mechanism is communicated with the fluid pressure circuit installed in the snow removal device body. ,
Snow removal method on a slope according to claim 1 and/or claim 2, characterized in that snow removal is performed by operating a pressure supply mechanism (5) Snow removal device installed on a slope in advance before snowfall In a snow removal device that removes snow by displacing the main body in an inclination angle or expanding and contracting it through fluid pressure, the snow removal device main body is constituted by a snow removal unit consisting of a plate-shaped snow removal body, a bag-shaped snow removal body, or a combination thereof, A fluid pressure circuit consisting of a fluid pressure supply pipe and a discharge pipe is installed between each snow removal unit, and is connected to a pressure supply mechanism, and the pressure supply mechanism may be a compressor only or a snow detector as necessary. , a program discrimination device, a pressure ejector, and a pressure vessel are attached, and the program discrimination device of the pressure supply mechanism is operated manually or automatically based on the signal from the snow detector, and the inclination angle of the snow removal device body is determined through fluid pressure. intermittent displacement or expansion/contraction;
A snow removal device for use on a slope, characterized in that it removes snow. (6) The snow removal device for sloped surfaces according to claim 5, characterized in that the pressure supply mechanism is combined with a seismic sensor, an air dryer, and a drain circuit. (7) Injection nozzles are arranged in a line in communication with a fluid pressure circuit disposed around the snow removal unit or at an appropriate position, and fluid pressure is injected as necessary. A snow removal device for sloped surfaces according to claim 5. (8) A fulcrum is provided at an appropriate position on the lower surface of the plate-like body, and the inclination angle of the plate-like body can be changed using the branch as an axis. Snow removal equipment on slopes. (9) A snow removal unit is combined with the short side of the plate-shaped snow removal unit that is rotatable about a fulcrum and has an appropriate angle of attack or depression on the short side relative to the inclination angle of the long side of the snow removal unit. A snow removal device for sloped surfaces according to claim 8. (10) The short side of the plate-shaped body is formed to be rotatable about a fulcrum, and the material of the short side is different from that of the long side, or the material is partially formed by combining different materials. 10. The snow removal device for sloped surfaces according to claim 9, characterized in that the snow removal unit is combined with the snow removal unit. (11) A plate with a plurality of cylinders attached to the lower surface, and the lower end and upper end of the plate-shaped snow removal body are raised and lowered simultaneously, alternately, or irregularly, and the inclination angle of the sloped surface is changed. 8. The snow removal device for sloped surfaces according to claim 7, characterized in that the snow removal device has a shape of a snow removal body unit connected thereto.