RU218741U1 - Cargo trolley for transportation of goods on flights of stairs - Google Patents

Abstract

The utility model relates to trackless ground vehicles, single-axle handcarts with multiple wheels and convertible elements, namely to handcarts for transporting goods.

The cargo trolley for transportation of goods along flights of stairs is a frame structure trolley, consisting of a cargo frame and a block of wheels. The load frame consists of the main bearing part 1, the supporting part 2, hinged to the main bearing part 1 by means of a hinge 3. At the end of the supporting part 2 there is a retractable, quick-detachable supporting frame 5 with a folding footboard 6 and levers 7 and 8. At the end of the main bearing part part 1, a retractable quick-detachable steering frame 4 with a footboard 27 and a lever 11 fixing this footboard 27 with a hinge 12 is installed. 14 cargo carts forward / backward; switch 15 of the right block of wheels; switch 17 of the left block of wheels; switch 16 drive step / ladder. The wheel block is equipped with all-wheel drive, a drive star 23 on the main axle 24 of the cargo trolley, driven stars 25 of five wheels mounted relative to each other at equal angles, a chain drive 26, a wheel block with five wheels fixed to the main bearing part 1 contains a support 18 main axis 24; motor drive 19; housing 20 power batteries; node of inclusion 21 of the left block of wheels; node 22 for turning on the right block of wheels, the device provides the possibility of securing a load (not shown in the figure). The technical result from the use of the utility model is to improve performance by providing movement on stairs of various types while simplifying the design, design reliability, easy to arrange, install and use, does not require significant physical effort or additional electrical or other external costs. 3 ill.

Description

The utility model relates to trackless ground vehicles, single-axle handcarts with multiple wheels and convertible elements, namely to handcarts for transporting goods.

It is well known that there are a significant number of different designs of manual non-self-propelled carts and wheelbarrows intended for use in everyday life for the transport of various goods, for example, in horticultural farms, etc. (RF patent No. 7075, V62V 1/12, op. 07/16/1998), containing, as a rule, a frame with wheels attached to it.

Known Manual universal truck for transporting small loads (patent 135995, IPC V62V 1/12, op. the platform contains an emphasis and ledges, a U-shaped removable handle of a curved shape with a cross member is installed on the support frame by means of fasteners, while the support frame is additionally equipped with a load-carrying platform and removable skids, the latter being fixed to the support frame by means of racks and screws, and the load-carrying platforms and the stop is made in the form of a metal mesh.

At the same time, in practice, the above analogues are used to transport goods of limited mass (weight) at a limited speed and mainly over short distances on level ground.

Its disadvantage is the impossibility of transporting cargo on stairs of various types.

Known HAND TROLLEY (Russian patent 1994 RU 2011589 C1).

Usage: in handcarts designed to move up stairs and other road obstacles with large loads. The essence of the invention: hand truck contains a platform, running gear with wheels. When the lever is turned around the loading platform, the ratchet pawl engages with the cross, and when the lever is turned back, the cross is rotated around the axis of the support wheel until the next wheel touches the next step of the ladder.

Known trolley that can go up and down stairs (patent 202201019, CN - 04/25/2012, IPC B62V 5/02, application No. 201120304423), which is a trolley that can go up and down stairs, consisting of a body frame, upper the end of the body frame is provided with a handle, the set of wheelsets is located on opposite sides of the lower end of the body frame, and the design of the two sets of wheelsets has the same dimensions; the wheel pair mainly includes a hinge shaft, a support rod and a wheel, wherein the hinge shaft rests on the frame of the vehicle body through the bearing, and at least three hinge shafts are uniformly fixed on the outer circumference of the pivot axis, extending along its radial direction , wheel pairs, the lengths of the support rods are equal, the radii of the wheels are the same.

KNOWN FOLDING LADDER TROLLEY (WO/2019/184405, WO-03.10.2019, IPC B62B 5/02, Application No. PCT/CN 2018/117159). The folding stair climbing cart includes a support frame (1). The two plug-in posts at the lower end of the base frame are inserted in series into the sliding bush (16), the inner sliding bush (5), the support bush (6), the threaded tubular bush (7), the torsion spring (8) and the base frame (9). The end of the two insert posts at the lower end of the support frame is rotatably connected to the two ends of the insert plate (10). The lower end of the support seat (12) is connected to the bottom of the swivel block (13) and is located on the upper side of the connection between the support frame (9) and the swivel block (13). The upper end of the rotary block is connected to the triangular frame (14). The roller wheels (15) are rotatably connected to the three ends of the triangular frame. Three roller wheels (15) allow the folding stair cart to move up the stairs, and the support sleeve (6) and support frame (9) can be rotated so that the roller wheels fold when the triangular frames (14) are in two positions, the sides trolleys fold inwards, thus reducing the required storage space. The upper end of the support frame (9) and the lower end of the threaded tubular sleeve (7) are provided with an oblique hole, and the torsion spring (8) is located inside the support frame to facilitate the unfolding of the triangular frame.

A LOGISTICS TRANSFER DEVICE is known (2020000015494 KR - 08/05/2000, IPC B62B 5/02). The present invention relates to a material handling apparatus, and in order to facilitate the transportation of heavy materials, base plates 12 are mounted on both ends of a driven support shaft 13 rotatably mounted in the main frame 10, and the base plate 12 in a logistic transport device having at least three wheels 11 spaced at regular intervals on the same circumference around the drive support shaft 13 and mounted for rotation and rotation, the material conveying device is slidably mounted on the main frame 10. It includes a lifting platform 20 and a cable crane 30 mounted on the main frame 10 and lifting the lifting platform 20 by winding a cable 31 connected to the lifting platform 20.

Common disadvantages of the known technical solutions are low functional properties and performance due to limitations in use.

The closest technical solution in terms of its purpose, design and appearance to the claimed one, accepted as the closest analog-prototype of the utility model, is:

1. Self-propelled cargo trolley (patent 99760, IPC B62D 51/04, op. 11/27/2010), containing a frame with an axle fixed on it and with at least one wheel mounted on the axle, as well as a control device, for example, in in the form of a steering wheel according to the type of frame structure, characterized in that it is equipped with an engine attached to the frame, kinematically connected by means of a power drive to the bogie axle, while the latter (bogie) is equipped with a brake device with an interconnected control mechanism.

2. The trolley according to claim 1, characterized in that an electric motor with a power source or an internal combustion engine with a transmission is used as a drive motor, and a chain or belt drive or a shaft system is used as a power drive, while the transmission includes an automatic clutch or V-belt variator.

3. The trolley according to claim 1 or 2, characterized in that disc, or drum, or belt, or caliper brake devices with a mechanical or hydraulic drive are used as a braking device, and a lever located on the steering wheel and interconnected is used as a control mechanism with said drive.

4. The trolley according to claim 3, characterized in that on the lower side of the frame additional supports are attached to it, made, for example, like rods or brackets with wheels-stops at the ends, and on the upper side of the frame universal quick-release fasteners are provided for installing various loading platform options.

The main disadvantage of the known technical solutions is that they are not designed to move on stairs and other road obstacles of a large load.

The disadvantages of the prototype are also the limited (insufficient) speed of the trolley with the load, including due to the need for significant expenditure of physical energy of the driver-operator of the trolley, especially when transporting massive loads (heavy weight), as well as the inconvenience of operation, manifested in the need to apply with the side of the driver-operator of a significant "impulse" effort to move the trolley with the load and its braking, especially when the trolley moves up and down the inclined surface, respectively.

The task to which the claimed device is directed is the transportation of heavy loads along flights of stairs, the possibility of transportation without damaging the results of finishing work on the landings of buildings.

The technical result from the application of the utility model is to ensure the transportation of goods with a lack of strength for lifting on landings

This is achieved by the fact that the proposed cargo trolley for transporting goods along flights of stairs, containing a frame with an axle fixed on it and with wheels mounted on the axle, as well as a control device in the form of a steering wheel according to the type of frame structure, attached to the frame by an engine kinematically connected by means of a power a drive with a bogie axle, while an electric motor with a power source is used as a drive motor, and a chain transmission is used as a power drive, a node located on the steering wheel and interconnected with the said drive is used as a control mechanism, attached to it from the bottom side of the frame additional supports, made like levers or brackets at the ends, according to the utility model, is a frame structure trolley, consisting of a cargo frame and a wheel block, the cargo frame consists of a main bearing part, a supporting part hinged to the main bearing part, on at the end of which is fixed a retractable, quick-detachable steering frame with a footboard and a lever that fixes this footboard with a hinge, a retractable, quick-detachable support frame with a folding footboard and levers. At the same time, the retractable, quick-detachable steering frame at the end has a steering part, on which a switch for moving the cargo trolley forward / backward is installed; right wheel block switch; switch of the left block of wheels; step/stair drive switch. At the same time, the wheel block is equipped with all-wheel drive, a leading star on the main axle of the cargo trolley, driven stars of five wheels installed relative to each other at equal angles, a chain drive, a wheel block with five wheels fixed on the main bearing part contains a main axle support; motor drive; power supply battery case; knot of inclusion of the left block of wheels; the node for turning on the right block of wheels, the device provides the possibility of fastening the load (not shown in the figure).

Significant differences between the utility model.

- Has a five-wheel block, due to which a quick and smooth up and down lift is provided.

- A five-beam asterisk, which ensures the patency of the structure along the steps.

- Due to the design features, the stair-walking trolley is not highly specialized and has no disadvantages over the "traditional" two-wheeled structures. It can also be used for horizontal movement of goods, but this design significantly expands the range of use of carts.

Advantages over two-wheeled cars:

1. The ability to move freely on the steps, while conventional carts move up the stairs with difficulty and jerks.

2. Possibility of use as a normal cart.

3. High load capacity.

4. Compactness.

- When adjusting parts of the cargo frame, spring mechanisms return the levers to the transport position and automatically fix the parts of the main frame in the desired dimensions of the cargo trolley. This ensures the fastest possible assembly, disassembly and selection of an adjustable trolley size.

- It is equipped with retractable, quick-detachable parts of the main frame, adjustable in length with the possibility of fixing in the required positions, pivotally connected to the axles of the running wheels and the cargo frame.

In FIG. 1 shows a cargo trolley for transporting goods along flights of stairs, general view.

In FIG. 2 - the same, view A in Fig. 1.

In FIG. 3 is the same, view B in Fig. 1.

Photo 1 shows a cargo trolley for transporting goods along flights of stairs, a general view in a horizontal position.

In photo 2 - the same, general view in a vertical position.

Positions designate: the main bearing part of 1 cargo frame; supporting part 2 of the cargo frame; hinge 3; steering frame 4; support frame 5; footboard 6; lever 7, 8, 9, 11; hinge 12; steering control part 13 of the steering frame 4; switch movement 14 cargo trolley forward / backward; switch 15 of the right block of wheels; switch 17 of the left block of wheels; switch 16 drive step/ladder; support 18 of the main shaft; propulsion drive 19 forward/backward; housing 20 power batteries; node of inclusion 21 of the left block of wheels; node 22 of the inclusion of the right block of wheels; leading star 23; axis 24; driven stars 25 five wheels, chain drive 26; support footboard 27 on frame 4; wheel 28; axis 29.

The essence of the utility model is illustrated graphically.

The cargo trolley for transportation of goods along flights of stairs is a frame structure trolley, consisting of a cargo frame and a block of wheels. The load frame consists of the main bearing part 1, the supporting part 2, hinged to the main bearing part 1 by means of a hinge 3. At the end of the supporting part 2 there is a retractable, quick-detachable supporting frame 5 with a folding footboard 6 and levers 7 and 8. At the end of the main bearing part part 1, a retractable, quick-detachable steering frame 4 with a footboard 27 and a lever 11, which fixes this footboard 27 with a hinge 12. switch movement 14 cargo trolley forward / backward; switch 15 of the right block of wheels; switch 17 of the left block of wheels; switch 16 drive step / ladder.

The wheel block is equipped with all-wheel drive, a drive star 23 on the main axle 24 of the cargo truck, driven stars 25 of five wheels mounted relative to each other at equal angles, a chain drive 26, a wheel block with five wheels fixed to the main bearing part 1 contains a support 18 main axis 24; motor drive 19; housing 20 power batteries; node of inclusion 21 of the left block of wheels; node 22 for turning on the right block of wheels, the device provides the possibility of securing a load (not shown in the figure).

The device works as follows.

Cargo trolley for transporting goods on flights of stairs (frame 1) in a vertical position. Pre-adjust the dimensions of the load by means of the levers 9, 11. The load is fixed on the vertical frame 1, for example, with a rope (not shown in Fig.). The movement of the device on a flat surface is carried out by turning on the movement switch 14. The steering wheel to the driver, turn on the control of the right and left block (switch 15 and 17). While driving, for increased maneuverability of the device, we set it to the 0 stroke position, turn off the left or right wheel block (switch 15 and 17), turn on the switch 16 stroke. At the entrance to the stairs, the trolley begins to roll onto the step, lifting the load, without the operator's efforts. During movement, the torque from the propeller through a 2-shaft chain transmission is transmitted to the drive stars 23 through the inclusion blocks 21 and 22. To overcome the obstacle, we turn on 16, with this, the torque is turned on to the main axis 24, through which the wheel blocks are rotated. Due to the five wheels on the blocks, the walking mechanism begins to overcome the obstacle by rolling the upper wheel onto the step of the stairs. The trolley has high stability due to the all-wheel drive (4x4 formula) of the wheels.

The undercarriage is a five-pointed star with beams located at an angle relative to each other, at the ends of which wheels are installed. The axis of each wheel ensures its rotation and, accordingly, the movement of the trolley on a flat surface, and when a wheel collides with an obstacle, for example, a step of a ladder, the running mechanism ensures that the next wheel is moved a step higher, which reduces the trajectory of the trolley and reduces the need for force when moving heavy loads along stairs. The technical solution provides for the transportation of goods with a lack of strength for lifting on landings, which is achieved by improving the contact of the trolley with the working environment. The design is reliable, easy to construct, install and use, does not require significant physical effort and additional electrical or other external costs. Thus, the device is compact, aesthetically pleasing, industrially applicable.

When adjusting parts 1, 4, 5 of the cargo frame, the spring mechanisms return the levers 9, 10, 11, 14 to the transport position and automatically fix the parts 1, 4, 5 in the desired dimensions of the cargo trolley. This ensures the fastest possible assembly, disassembly and selection of an adjustable trolley size.

Claims (1)

Cargo trolley for transporting goods along flights of stairs, which is a trolley of a frame structure, consisting of a cargo frame and a block of wheels, while the cargo frame consists of a main bearing part, a supporting part hinged to the main bearing part, at the end of which a retractable steering frame is fixed with a footboard and a lever that fixes this footboard with a hinge, a retractable support frame with a folding footboard and levers, while the retractable steering frame at the end has a steering part, on which the switch for moving the cargo trolley forward / backward, the switch for the right wheel block, the switch for the left block are installed wheels, a step/ladder drive switch, while the wheel unit is equipped with all-wheel drive, a drive star on the main axle of the cargo trolley, driven stars of five wheels installed at equal angles relative to each other, a chain drive, a wheel unit with five wheels mounted on the main carrier parts, contains the main axle support, engine drive, battery housing, left wheel block switching unit, right wheel block switching unit.

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