RU2314225C2 - Device for transportation of loads up/down flights of stairs - Google Patents

Abstract

FIELD: transport engineering.

SUBSTANCE: design trolley has vertical frame 1 and horizontal frame 2 rigidly connected to each other. Movable frame 3 is hinge connected with horizontal framer 2. Front and rear running gears 4 and 5, respectively, are installed on movable and vertical frames, respectively. Screw mechanism is installed between horizontal frame 2 and movable frame 3 and it provides any position of trolley in range normal state when front and rear running gears 4 and 5 are at maximum distance from each other to folded state in which front and rear running gears 4 and 5 are moved close to each other, and provision is made to support trolley on swivel wheel 16 of vertical frame 1 at confined space on stairs landing. Rear running gears 5 on flat surface rest on two wheels. Planetary mechanism of rear running gear 5 provides rotation of wheels, and when wheel rests on step of stairs, planetary mechanism provides locking of wheel with possibility of placing other wheel on following step. Rear running gears 5 are driven from output shaft of geared motor rigidly secured on horizontal frame 2. Torque is conveyed through gear installed on output shaft and gear wheel installed on main axle of rear running gear 5 with planetary mechanism. Front running gears 4 are provided with three wheels spaced through 120° relative to each other. Load can be fastened on proposed device.

EFFECT: possibility of carrying heavy loads at confined space for turning on stairs landings.

5 dwg

Description

The invention relates to a device for transporting goods and can be used for transportation of goods by flights of stairs in residential and industrial buildings.

The following device is known: freight elevator. Lifting with a freight elevator is not always possible, since only 20% of buildings are equipped with freight elevators.

A known crane for lifting and supplying goods to window openings (RU 2250871 C1, IPC В66С 23/22, published May 24, 2005), which is a frame installed in a window opening, a swinging U-shaped boom equipped with damper devices in the form of hydraulic cylinders with return springs, and a hoisting winch.

The use of this device is not possible after finishing work on the premises of the building and installing expensive double-glazed windows in window openings.

A device for transporting goods along flights of stairs, which is a frame-structure truck having rear chassis and planetary gear of the rear chassis [JP 20002264856 A, publ. 2002.09.18].

The known device has a complex structure and its movement is possible with relatively equal height of the steps.

The task to which the claimed device is directed is the transportation of heavy cargo by flights of stairs, the possibility of transportation without damage to the results of the finishing work of the stairwells of buildings.

The technical result is the mechanization of the process of transporting goods along flights of stairs.

The specified technical result is achieved by using a device for transporting goods along flights of stairs, which is a frame-structure trolley containing vertical and horizontal frames rigidly interconnected, having rear chassis, which are supported by two wheels on a flat surface, and a planetary gear of the rear chassis , which provides rotation of the wheels, and when the wheel rests on the step of the ladder, the planetary mechanism provides the wheel lock with the provision of permutation leduyuschego wheels on the step above, in which the message is provided through the torque gear mounted on the output shaft, and a gear wheel mounted on the main axis of the rear undercarriage with a planetary gear. A feature of the device is that the front chassis is equipped with 3 wheels set to 120 ° relative to each other. The device comprises a movable frame pivotally connected to a horizontal frame. The rear running gears are driven by the output shaft of the gearmotor, which is rigidly fixed to the horizontal frame. Front and rear chassis mounted on a movable and vertical frames, respectively. A screw mechanism installed between the horizontal and movable frames and providing any position of the trolley in the range from the usual state in which the front and rear chassis are as distant from each other as possible, in the folded one, in which the front and rear chassis are brought together as much as possible. The device provides the possibility of securing cargo.

Figure 1 shows the main view of the device, figure 2 is a side view, figure 3 is a view in an assembled state, figure 4 is a view of the rear undercarriage with a planetary mechanism, figure 5 is a step section of the rear undercarriage with planetary gear.

The device for lifting goods along the flights of stairs of a building is a carriage of a frame structure, consisting of a vertical frame 1, a horizontal frame 2, rigidly interconnected, a movable frame 3 pivotally mounted with a horizontal frame 2 made of a standard channel, the front chassis 4 sec 3 wheels mounted relative to each other at 120 °, mounted on a movable frame 3 of the rear chassis 5 with a planetary gear mounted on a vertical frame 1. In turn, the rear chassis 5 with a plan The tare mechanism consists of: a main axis 6, fixed, rotatable around its axis, to a vertical frame 1, a frame 7 of the rear chassis 5, pivotally mounted on the main axis 6, a sun wheel 8, rigidly mounted on the main axis 6, a satellite shaft 9, fixed, rotatable around its axis, to the frame 7 of the rear chassis 5, of the wheel shaft 10, fixed, rotatable around its axis, to the frame 7 of the rear chassis 5, satellite 11, rigidly mounted on the satellite shaft 9, chain drive 12, connect the yanking satellite shaft 9 and the wheel shaft 10, the wheels 13, rigidly mounted on the wheel shaft 10.

The device also includes a ratchet mechanism 14 mounted on the vertical frame 1, mounts 15 mounted on the horizontal frame 2, a swivel wheel with a handle 16, pivotally mounted on the vertical frame 1, a screw mechanism 17 mounted between the horizontal frame 2 and the movable frame 3 , a gear motor 18, operating from an electric current, for example, an industrial outlet of 220 V, rigidly fixed to a horizontal frame 2, a gear 19 mounted on the output shaft of the gear motor 18, a gear wheel 20 mounted on the main th axis 6.

The device operates as follows.

The load 21 is fixed on a vertical frame 1 and a horizontal frame 2, for example, by a rope (not shown in FIG.) Using a ratchet mechanism 14 and fasteners 15. The device, being on a flat surface, is supported by a rear chassis 5 with a planetary mechanism on two wheels 13 The movement of the device on a flat surface is carried out by turning on the gear motor 18. Through the gear 19 and the gear wheel 20, a torque is transmitted to the main axis 6, the rotating sun wheel 8. Next, the torque is transmitted to the satellite 11, which drives when the power of the satellite shaft 9 is a chain gear 12 connected to a wheel shaft 10 that rotates the wheel 13, thereby moving the device with a load of 21. To drive the device along a flight of stairs, include a gear motor 18. Wheel 13 abuts against the first step of the ladder, is blocked, why rotation of the wheel shaft 10, the chain drive 12, the satellite shaft 9 and the satellite 11 is impossible. In this regard, the sun wheel 8 starts to run around the satellite 11, transmitting torque to the frame 7 of the rear chassis 5 with a planetary mechanism, forcing it to rotate with the main axis 6, thereby rearranging the next wheel 13 one step higher. The cycle repeats. The rotation of the device between the flights of stairs is carried out by a swivel wheel with a handle 16 in the folded state, when the front chassis 4 with 3 wheels set to 120 ° relative to each other is maximally brought to the rear chassis 5 with a planetary mechanism. After turning, the device is returned to normal when the front chassis 4 with 3 wheels set to 120 ° relative to each other is maximally distant from the rear chassis 5 with a planetary gear to move along the next flight of stairs. If there is not enough space on the landing, it is possible to work in the floor when folded: any position of the device in the range from folded to normal. The transition from one state to another occurs using a screw mechanism 17, which is driven manually, for example, by a handle (not shown in FIG.), Or by an automatic, such as an electric motor (not shown in FIG.).

Claims (1)

A device for transporting goods along flights of stairs, which is a carriage of a frame structure containing vertical and horizontal frames rigidly interconnected, having rear chassis, which are supported on two flat wheels by two wheels, and a planetary mechanism of the rear chassis, which provides rotation of the wheels and when the wheel rests on the step of the ladder, the planetary mechanism locks the wheel, ensuring that the next wheel is rearranged one step higher, while the message is cool The moment is provided through a gear mounted on the output shaft and a gear mounted on the main axis of the rear undercarriage with a planetary gear, characterized in that the front undercarriages are equipped with 3 wheels mounted 120 ° relative to each other, the rear undercarriages have a drive from the above output shaft of the gearmotor, rigidly mounted on a horizontal frame, while in the device the movable frame is pivotally connected to the horizontal frame, the front and rear chassis are mounted on moving and vertical frames, respectively, a screw mechanism is installed between the horizontal and moving frames and provides any position of the trolley in the range from the usual state in which the front and rear chassis are as distant from each other as possible to the folded one, in which the front and rear chassis are summed up to each other, moreover, the device provides the ability to secure the load.

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