RU2803676C1 - Method and device for knocking icicles off roof eaves of buildings - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: means for knocking down icicles from the eaves of building roofs. A device for knocking down icicles from roof eaves contains a quadcopter and a remote control system. The quadcopter contains a modular frame, an electric motor, a spring shaft for rotating the hub, on which are mounted oppositely directed balanced telescopic arms with strikers at the ends for knocking down icicles. The telescopic arms are designed to increase the range of action of the strikers due to centrifugal forces caused by the dynamics of their rotation, and are equipped with springs for returning the strikers to their original position in a static state.

EFFECT: improved safety is achieved when knocking down icicles from the eaves of house roofs.

4 cl, 1 dwg

Description

The invention relates to the field of construction, in particular to building maintenance, and can be used in housing and communal services for knocking down icicles from the roofs of houses.

A tethered unmanned aerial vehicle is known, containing a body with a battery and control and surveillance equipment, one wing mounted on the body, having a V-shaped profile, four motor-generators with propellers mounted on the wing symmetrically relative to the center of mass of the aircraft, a handrail fixed one end on the body, the other on the ground, holding the aircraft in one place like a “kite”. (RU Patent No. 169165 U1. Tethered unmanned aerial vehicle. IPC: B64C 27/08, B64C 39/02. - Published 03/07/2017).

A device is known for removing icicles from the roofs of buildings, containing a fuselage, a rotor with blades made of polymer composite materials, a rotor swashplate, a tail rotor, a control system, and a working element. An electric motor is located in the fuselage, connected through a swashplate to the main rotor, and through a gearbox to the tail rotor. The shaft section between the electric motor and the swashplate is located in a chamber connected to the inner surface of the fuselage. The chamber contains an inlet with a check valve and an outlet. The blades are located on the specified section of the shaft. A heat-electric heating element is placed in front of the chamber outlet. A telescopic tube is connected to the outlet, which has the ability to change the length and size of the outlet. The control system contains a control panel connected to a power source, as well as to a main rotor swashplate, a regulator for the size of the outlet hole and the length of the tube, and a tail rotor gearbox. (RU Patent No. 2 463 415 C2. Device for removing icicles from the roofs of buildings. IPC: E04D 13/076, B64C 27/00. - Published 10.10.2012). This device is accepted as a prototype.

The disadvantage of the known technical solution is the complexity of the device design and the high degree of control hazard when knocking down icicles from the eaves of building roofs.

The objective of the proposed technical solution is to create a device with the lowest material costs and increase safety when knocking down icicles from the eaves of house roofs.

The technical result of using the proposed technical solution is to reduce manufacturing costs and increase safety when knocking icicles off the eaves of house roofs.

The specified technical result is achieved by the fact that in the known device for knocking down icicles from the eaves of building roofs, containing an aircraft with a bladed main rotor and an electric drive connected to a power source, and a control system console, according to the proposed technical solution,

as an aircraft, it contains a quadcopter consisting of a modular frame, bladed rotors, mechanical rudders, a spring shaft for rotating the hub with at least one pair of oppositely directed balanced arms with strikers at the ends for knocking down icicles, and additionally an electric motor for rotation levers mounted on the quadcopter frame, connected to the power source using a remote control system;

The quadcopter is made tethered using a handrail, with one end movably fixed in the hub and the other in a tape measure with the ability to manually control the height of movement of the quadcopter by fixing in the tape measure the length of the handrail corresponding to the height of knocking down the icicles;

oppositely directed levers with strikers at the ends are made telescopic with the possibility of increasing the radius of action of the strikers due to centrifugal forces caused by the dynamics during their rotation, and are equipped with springs for returning the strikers to their original position in a static state;

the strikers are made with cone-shaped tips.

The analysis of the state of the art provided by the applicant made it possible to establish that there are no analogues characterized by sets of features identical to all the features of the claimed device for knocking down icicles from the eaves of building roofs. Consequently, the claimed technical solution meets the patentability condition of “novelty”.

The results of a search for known solutions in this field of technology in order to identify features that coincide with the features of the proposed technical solution that are distinctive from the prototype, showed that they do not follow explicitly from the prior art. The prior art determined by the applicant does not reveal the impact of the proposed technical solutions provided for by the essential features on the transformation and achievement of the specified technical result. Consequently, the claimed technical solution meets the patentability condition “inventive step”.

The declared technical solution is planned to be used at housing and communal services facilities with the appearance of icicles on the roof eaves of houses. Consequently, the claimed device for knocking down icicles from the eaves of building roofs meets the patentability condition of “industrial applicability”.

Figure 1 schematically shows the proposed device for knocking down icicles from the eaves of roofs of buildings.

A device for knocking down icicles from the eaves of building roofs contains a tethered quadcopter consisting of a modular frame 1, counter-rotating bladed rotors 2, mechanical rudders 3, a remote control 4 for the device control system, an electric motor 5 with a spring shaft 6 connected to a hub 7, on which At least one pair of oppositely directed balanced telescopic levers 8 with strikers 9 at the ends are fixed, made with cone-shaped tips for cutting and knocking down icicles, equipped with springs 10 for returning the strikers 9 to their original position in a static state. The strikers 9 are made with cone-shaped tips. The quadcopter is equipped with a handrail 11, one end of which is movably fixed in the hub 7, and the other in the tape measure 12 for manually maintaining the height of movement of the tethered quadcopter when knocking down icicles by fixing the length of the handrail 11 in the tape measure 12. The electric motor 5 is designed to create a rotational movement of the hub 7. Rudders 3 with 2 blades are designed to give the quadcopter the required position in the airspace. The source of energy for the operation of the quadcopter is electric batteries (not shown).

A device for knocking down icicles from the eaves of building roofs works as follows.

The operator, through the remote control 4 of the control system, transmits a signal to the device located on the ground to turn on the rotation of the rotor blades 2 of the quadcopter. The rotating blades of the rotors 2 create lift and lift the device. As the operator approaches the icicles, using the remote control 4 of the control system, the electric motor 5 is turned on, which, using a spring shaft 6, begins to rotate the hub 7 together with the telescopic arms 8 and the hammers 9 at their ends, made with cone-shaped tips. Due to the centrifugal forces from the rotation of the masses of the strikers 9, the latter move the telescopic arms 8 apart and displace the strikers 9 at their ends by the amount of the radius R of rotation in working condition. The operator, using mechanical rudders 3, maneuvers the quadcopter and, with rotating extended strikers 9, brings it to the icicles for their mechanical knocking down by strikers 9, maintaining the required height of the tethered quadcopter by fixing the length of the handrail 11 in the tape measure 12. Then the quadcopter is moved with rotating extended strikers 9 along the eaves of the roof of the building and along the way, by making a cut with the cone-shaped tips of the strikers 9 and subsequent knocking down by the strikers 9, the hanging icicles are removed. When the striker 9 collides with the icicle, the latter breaks off from the roof eaves, while the force impulse transmitted to the quadcopter from the impact of the striker 9 on the icicle is compensated by the spring shaft 6, thereby eliminating the accident of the quadcopter. Through remote control 4 of the control system, the position of the quadcopter is corrected. When the striker 9 engages with other elements of the roof due to the accompanying knocking down of icicles, the quadcopter is pushed off from the eaves and the electric motor 5 of rotation of the strikers 9 is automatically turned off, the telescopic arms 8 with the striker and under the action of the spring 10 are folded and the position of the quadcopter in space is restored. With the completion of knocking down icicles from the eaves of building roofs, the operator, from the control system console 4, turns off the electric motor 5, which, using a spring shaft 6, stops rotating the hub 7 along with the telescopic arms 8 and the hammers 9 at their ends. As the rotation stops, the centrifugal forces caused by the dynamics of their rotation decrease and the telescopic arms 8 with strikers 9 at the ends under the action of the springs 10 return to their original position corresponding to the static state. After the rotation of the hub 7 has stopped, the quadcopter, together with the folded telescopic arms 8 with strikers 9 at their ends, is lowered to the ground using the remote control 4 of the control system, at the same time the handrail 11 is rolled up using a tape measure 12. With the landing of the quadcopter, the rotation of the rotor blades 2 is turned off. This completes the work .

Thus, the proposed device allows for timely and safe mechanical knocking down of icicles from the eaves of building roofs.

Claims (4)

1. A device for knocking down icicles from the eaves of building roofs, containing an aircraft with a bladed main rotor and an electric drive connected to a power source, and a control system console, characterized in that the aircraft contains a quadcopter consisting of a modular frame, bladed rotors , mechanical steering wheels, a spring shaft for rotating the hub, with at least one pair of oppositely directed balanced levers with strikers at the ends for knocking down icicles, and additionally an electric motor for rotating the hub with telescopic levers, mounted on the quadcopter frame, connected to the power source using remote control system. 2. The device according to claim 1, characterized in that the quadcopter is tethered using a rail, one end movably fixed in the hub, and the other in a tape measure with the ability to manually control the height of movement of the quadcopter by fixing in the tape measure the length of the rail corresponding to the height of knocking down the icicles. 3. The device according to claim 1, characterized in that the oppositely directed arms with strikers at the ends are made telescopic with the possibility of increasing the radius of action of the strikers due to centrifugal forces caused by the dynamics during their rotation, and are equipped with springs for returning the strikers to their original position in a static state. 4. The device according to claim 1, characterized in that the strikers are made with cone-shaped tips.