RU201135U1 - ROOF SNOW CLEANER - Google Patents

Abstract

The utility model relates to the field of construction, in particular to devices for removing snow from the roofs of various buildings and structures. The device for removing snow from the roof contains a housing 1, a vibration propulsive device 2, which with its base 3 through the housing 1 is rigidly connected to the beam 4. The plates 5 of the plow spreader are fixed to the beam 4. The body 1 of the device is a trapezoidal bath. Plates 5 of the plow spreader are located at an angle to each other with the location of the top of this angle from the side of the roof ridge, the middle of the plate 5 are fixed to the beam 4, the rear (upper) part to the body 1. The vibration propeller 2 consists of a shaft 6 with an unbalance load 7. The shaft 6 is driven by a belt 8 through pulleys 9 from an electric motor 10, powered by a battery 11. A mechanism is welded to the beam 4, including screw clamps 12 and retractable legs 13 with wheels 14 made of polyurethane. The device is lifted up the roof slope by means of a rope 15. The claimed utility model is much simpler and cheaper to manufacture, more efficient - the transmission of vibrations through the beam and legs with the wheels of the roof facilitates the separation of snow and ice from the roofing material; more mobile - it is easier and more convenient to move it to another roof, the device can bend around obstacles; more versatile - it can be used to remove not only snow, but also ice.

Description

The utility model relates to the field of construction, in particular to devices for removing snow from the roof.

A device for removing snow from a roof is known, consisting of a plow spreader placed on the roof slope, which is connected to two ropes oriented along the roof slope. One of the ropes bends around a pulley with two turns, which is rotatably mounted on a trolley. The other end of this rope is oriented towards the eaves of the roof with the possibility of bending around the guide, fixed under the eaves, and then directed downward with the fastening on the drum of the winch mounted on the trolley with the possibility of its movement along the building. The second rope is also oriented towards the eaves of the building with the possibility of bending around the mentioned guide, and its end is fixed on the opposite side of the drum of the same winch as the first rope. Both ropes, after going around the guide, are oriented at an angle to the vertical. The plow spreader is made in the form of two plates located at an angle to each other with the location of the top of this angle from the side of the roof ridge. A trolley with a pulley is installed on the roof with the ability to move along the ridge using two traction ropes. On the bogie from the side of the traction ropes, additional acute-angled plow dumpers are fixed (patent RU No. 2459053, IPC E04D 13/076, publ. 20.08.2012).

The disadvantages of this device are:

- limited possibilities associated with the inability to use the device on roofs with chimney or ventilation pipes or dormer windows;

- the complexity of the design, due to the presence of a large number of assembly parts;

- high costs for the manufacture of the device due to the complexity of the design;

- low efficiency in shoveling dense packed snow and ice;

- the complexity of plant control;

- low mobility due to the complexity of the design of the device and, accordingly, the complexity of transferring it from roof to roof.

The common features inherent in the analogue and the claimed design of the device are - a plow snow spreader made in the form of two plates located at an angle to each other with the location of the top of this angle on the side of the roof ridge, made with the possibility of lifting along the roof slope using a rope.

The closest device for the same purpose to the claimed utility model in terms of the combination of essential features and the achieved effect is a device for removing snow from the roof, containing a body to which plow spreader plates are attached on hinges, located at an angle to each other with the apex of this angle from the side roof ridge. A vibration propeller is fixed on the body, consisting of a shaft on bearings with an unbalance load. The shaft is driven by a belt through pulleys from an electric motor powered by a cable that also serves as a rope to lift the device up the roof slope. The device operates as follows. The operator, sitting on the ridge of the roof, lowers the device onto the ramp and starts the engine of the device. The device, vibrating, begins to move down the roof slope, pushing the snow in front of it and, having reached the cornice, dumps the snow down (patent RU No. 182073 IPC E04D 13/076, publ. 09/14/2018). This device is taken as a prototype.

The general features inherent in the prototype and the claimed technical solution are: a plow snow spreader made in the form of two plates connected to each other and located at an angle to each other with the apex of this angle on the side of the roof ridge; body; a rope for lifting the device to the roof; vibration propeller, which is a shaft with an unbalanced load, the shaft is mounted on bearings and is connected to an electric motor through a belt drive.

The tests carried out by the authors of this device (Zadorina L.V., Muratova V.A., Zverev O.M. "Vibration crew" - a device for removing snow from the roof with a vibration propulsion // Bulletin of the Perm National Research Polytechnic University. Applied Ecology. Urban Studies . - 2019. - No. 1. - P. 103-115.) Revealed the following shortcomings:

- low efficiency of the device, due to the fact that the body and hinges, which are attached to the plow spreader plates to the body, dampen vibrations;

- low efficiency when shoveling dense packed snow and ice due to the fact that the installation is too light and the plow spreader plates do not cut into the snow;

- limited possibilities due to the fact that the electric motor is powered by a cable;

- low mobility, due to the fact that to ensure electrical safety, a power source is required that reduces household voltage;

- high costs of manufacturing the device, due to the fact that cables with a large cross-section of wires and a special power source are required to power low-voltage motors (12 V).

The task of the utility model is to create a simpler, cheaper, mobile, more efficient and versatile device for removing snow from the roof.

When solving this problem, the following technical results are achieved:

- increasing the efficiency of snow removal due to the transmission of vibrations through the beam from the vibration propulsion device to the plates of the plow spreader;

- increasing the efficiency of removing dense snow and ice due to the transmission of vibrations through the beam and legs with wheels to the roofing material;

- reducing the cost of manufacturing the device and energy consumption during its operation by installing a power source (battery) in the device case;

- increasing the mobility of the device due to the ability to transfer the device from one building to another with minimal effort.

The specified technical results in the implementation of the utility model are achieved by the fact that the known device for removing snow from the roof, including a plow snow spreader made in the form of two plates connected to each other and located at an angle to each other with the location of the top of this angle on the side of the roof ridge, the body , a rope for lifting the device to the roof, a vibration propeller, which is a shaft with an unbalance load, the shaft is mounted on bearings and is connected to an electric motor through a belt drive; according to the utility model, it additionally contains a beam and a mechanism welded to the beam, including screw clamps and retractable legs with wheels, while the base of the vibration propeller and the plates of the plow spreader are rigidly fixed to the beam through the body.

The electric motor can be powered from a battery installed in the housing.

FIG. 1 shows a general view of the device from above.

FIG. 2 and 3 are front views of the device when operating on dense snow and loose snow, respectively.

FIG. 4 is a side view of the device when operating on dense snow.

The device for clearing snow from the roof (Fig. 1) contains a housing 1, a vibration propulsion device 2, which with its base 3 through the housing 1 is rigidly connected to the beam 4. Plates 5 of the plow spreader are fixed to the beam 4 approximately in the middle. The body 1 of the device is a trapezoidal bath. This or a similar shape of the housing 1 prevents the device from sinking in the snow, facilitates its sliding on the snow and prevents snow from falling on the propulsion parts. Plates 5 of the plow spreader are located at an angle to each other with the location of the top of this angle from the side of the roof ridge, the middle of the plate 5 are fixed to the beam 4, the rear (upper) part to the body 1. The vibration propeller 2 consists of a shaft 6 with an unbalance load 7. The shaft 6 is driven by a belt 8 through pulleys 9 from an electric motor 10 powered by a battery 11. A mechanism is welded to the beam 4, including screw clamps 12 for retractable legs 13 with polyurethane wheels 14.

Polyurethane is tough enough to transmit vibrations to the roofing material and soft enough not to damage the paintwork. The device is lifted up the roof slope using a rope 15.

FIG. 4, reference 16 shows the snow cover; position 17 - roofing material.

The device operates as follows.

The operator with the device climbs onto the roof ridge. If the thickness of the snow cover 16 is not large (less than the length of the legs 13), then the operator immediately lowers the legs 13 (Fig. 2), if it is large, then leaves the legs 13 with the wheels 14 in the raised state (Fig. 3) to remove the upper loose layer snow. Lowers the device onto the roof slope near its ridge and turns on the device motor 10. Shaft 6 with unbalance load 4 begins to rotate, and the propeller 3 begins to vibrate (jump) and move in a direction perpendicular to the axis of rotation of the shaft 6. The device, vibrating, begins to move down the roof slope, pushing snow in front of it and, when it reaches the cornice, it drops the snow down. To prevent the device from falling from the roof, the rope 15 is attached to the required length to the anchor device or ridge anchor line. The operator's halyard is attached to it for safety reasons. After removing the upper loose layer, the operator extends legs 13 with wheels 14 (Fig. 2) so that the wheels 14, breaking through a dense layer of snow 16, come into contact with the roofing material 17. Vibrations of the propeller 2 through the base 3, beam 4, clamps 12, legs 13, wheels 14 are transferred to the roofing material 17 (Fig. 4) and lead to a violation of adhesion between the roof 17 and the snow cover 16. Vibrations of the roofing material contribute to the snow sliding from the roof. The device is lifted up the roof slope by the operator by pulling the device by the rope 15. After complete cleaning of one part of the roof, the operator moves along the ridge of the roof and the operation is repeated on the other part of the roof.

The advantage of the claimed utility model over the prototype is that the design of the proposed device is much simpler and cheaper to manufacture; the device is more effective - the transmission of vibrations through the beam and legs with the wheels of the roof helps to tear off snow and ice from the roofing material; more mobile - it is easier and more convenient to transfer it to another roof, the device can bend around obstacles; more versatile - it can be used to remove not only snow, but also ice.

Claims (2)

1. A device for removing snow from the roof, including a plow snow ejector, made in the form of two interconnected and located at an angle to each other plates with the location of the apex of this angle from the side of the roof ridge, a body, a rope for lifting the device to the roof, a vibration propeller , which is a shaft with an unbalanced load, the shaft is mounted on bearings and through a belt drive is connected to an electric motor, characterized in that it additionally contains a beam and a mechanism welded to the beam, including screw clamps and retractable legs with wheels, while rigidly to the beam through the body is fixed to the base of the vibration propeller and the plate of the plow ejector. 2. The device according to claim 1, characterized in that the electric motor is powered from a battery installed in the housing.

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