Freight cart (option)

Abstract

The invention relates to housing and public utility services, community services and industrial facilities, and can be used for collecting and carrying garbage, leaves, firewood and the like by cleaners or miscellaneous workers. The invention provides a freight cart. The freight cart comprises a tubular frame on which a plastic tank can be mounted; a handrail handle is arranged at the upper part of the rear end of the tubular frame; a baffle is arranged at the lower part of the front end of the tubular frame; two driving side motor wheels with spokes and motors are arranged on the baffle; the side motor wheels are fixed in the holes through reducing bushings mounted on the cantilever type motor wheel shafts; a movable tubular retainer is arranged at the upper part of the rear end of the tubular frame so as to attach a plastic can; the armrest handle is provided with a cart controller, and the cart controller comprises a throttle handle, a vehicle-mounted computer with an LED display screen and a power on / off switching switch, and a brake handle capable of controlling a rim brake; a cart baffle is mounted at the lower part of the front end of the tubular frame; a tubular niche is arranged at the rear end of the tubular frame for storing goods, and a box for loading a controller and a battery is arranged in the niche. The tubular niche is provided with one or more of the following devices which are powered by a battery through a voltage reduction device: an air blower, a dust collector, a broom, a mower, a sickle, a brush cutter, a sprayer or a cultivator. The technical result of the invention is that the speed, mobility, operability and convenience of cargo handling are improved by means of a freight cart.

Description

[0001] The present invention is applicable to housing and utility services, community services, industrial facilities, and can be used by cleaners or handymen to collect and carry garbage, leaves, firewood, etc.

[0002] An electric beach car is known, comprising:

[0003] - a folding frame with front and rear legs connected to the fulcrum of the front legs, which can be rotated and equipped with handles;

[0004] —Folding storage box connected to the frame;

[0005] —at least three wheels are attached to the frame, wherein the at least three wheels include two rear wheels and at least one front wheel;

[0006] - means for connecting the rear wheels to the rear frame section so as to rotate about the same axis;

[0007] - A folding support platform, comprising a first portion and a second portion pivotally connected to each other, the first portion being rotatably connected to a front end of a frame, and the second portion being rotatably connected to a rear end of the frame;

[0008] a drive unit, including a battery, a drive controller and at least one motor electrically connected to the battery, and a drive controller for driving at least one rear wheel. The drive unit is located on the frame for positioning the battery; when the freight cart is in the deployed vertical mode, the drive controller and the motor are located below and in front of the rear wheel rotation axis, thereby placing the center of gravity of the freight cart in front of the rear wheel rotation axis to enhance stability in the deployed vertical mode.

[0009] In this case, the drive unit is designed and positioned on the frame in such a way that the storage box and the frame can be folded to achieve compact storage of the freight cart and provide clearance for at least one front wheel when switching between the folded mode and the unfolded vertical mode; in addition, the drive unit is positioned on the frame in such a way that when the freight cart is running using the two rear wheels, the center of gravity of the freight cart is substantially vertically aligned with the axis of rotation of the rear wheels in the tilting mode (disclosed in US2012016057, IPCB62D 51 / 04, 2011, 2013, https: / / patentscope.wipo.int / search / ru / detail.jsf?docId=US73607798). Disadvantages of the known device are:

[0010] — Lack of additional compartments for storing various stocks;

[0011] - structures with a large number of pivots that may not be able to withstand heavy loads (wood, sand, soil, etc.) without bearings, ultimately increasing the likelihood of damage to the device;

[0012] - Short front wheel diameter, resulting in limited off-road capability on irregular surfaces and rough terrain (getting stuck in soil or road depressions), and increased chances of a loaded cargo cart tipping over when it moves forward on the front axle;

[0013] — Low mobility of the device;

[0014] —Mounting the drive mechanism on the frame requires some additional wheel drive units.

[0015] A combined manual electric box-shaped cart is known, comprising: a folding cover located on the upper surface; auxiliary wheels located on the lower surface in the area adjacent to the steering wheel; a warning light located in the upper area of ​​the advertising display unit, focused in front of the moving direction of the rear body of the motor vehicle, so that the control unit operates according to the user control; the rear body part of the electric vehicle using an LED module, which releases a classified warning signal when parking. Since the smartphone holder on the steering wheel includes a touch panel, it can not only control the bidirectional wheel mode change of the battery-powered motor in the wheel, but also guide the handle control unit to adjust the steering wheel length by controlling the hydraulic or pneumatic folding drive module installed on the two rod ends in contact with the electric drive device at the rear of the vehicle body (disclosed in KR102369197, IPC B62B 1 / 12, B62B 5 / 00, B62B 5 / 06, B62B 5 / 08, G09F 21 / 04, 2022, 2022, https: / / patentscope.wipo.int / search / ru / detail.jsf?docId=KR356037093). The disadvantages of the known device are:

[0016] - Limited to the transportation of pharmaceutical goods, subject to certain relocation requirements;

[0017] —No additional compartments to carry various stocks;

[0018] —The body is large, which increases the total weight of the cargo cart and reduces the ground clearance, resulting in poor off-road capability, mobility, maneuverability and controllability of the device;

[0019] —Due to the three wheels and large body size, vertical physical impacts may be caused to the handle when passing obstacles.

[0020] The closest in technical essence to the claimed invention is a cleaner's cargo cart with inventory, comprising a tubular frame for mounting plastic cans; two side wheels, two side armrest handles, two front fenders and adhesive tape for fixing the mounted plastic cans are attached to the frame (URL: https: / / ooo888.ru / shop / product / telezhka-post-dlya-dvornika, Accessed: 07 / 26 / 2023, Accessed: 07 / 26 / 2023). The disadvantages of the known device are:

[0021] — Lack of additional compartments for storing various stocks;

[0022] —The cart needs to be moved manually, which increases the complexity of the device and its moving speed;

[0023] —The armrest handle is constructed like a small lever that is applied with force to move the freight cart and must be operated with both hands;

[0024] —Using tape to fix the tank increases the installation time of the tank and does not provide sufficient connection reliability;

[0025] - Small wheel diameter, resulting in limited off-road capability on irregular surfaces and rough terrain (getting stuck in soil or road depressions);

[0026] —The location of the stock bracket makes the device difficult to control when securing the tool.

[0027] The purpose of the present invention is to eliminate these disadvantages, and the technical effect is to improve the speed, mobility, operability and convenience of cargo movement using a freight cart.

[0028] The above technical effects can be achieved because the freight cart includes a tubular frame for installing plastic cans; two driving side motor wheels with spokes and motors are arranged at the lower part of the side of the tubular frame, and the side motor wheels are connected and fixed in the eyes through reducing bushings installed on each cantilever motor wheel axle; a removable tubular retainer for attaching plastic cans is arranged at the upper part of the rear end of the tubular frame; the armrest handle is installed with a cart controller: a throttle handle, an on-board computer with an LED display and a power on / off switch, and a brake handle for controlling the rim brake; a freight cart baffle is installed at the lower part of the front end of the tubular frame; in addition, a tubular niche is installed at the rear end of the tubular frame to accommodate inventory, and a box with a controller and batteries is arranged between the niches.

[0029] Another invention scheme, a freight cart includes a tubular frame for mounting plastic cans; at the lower part of the side of the tubular frame, there are two driving side motor wheels with spokes and motors, and the side motor wheels are connected and fixed in the eyes through a reducing bushing installed on each cantilever motor wheel axle; at the upper part of the rear end of the tubular frame, there is a removable tubular holder for attaching the plastic cans; the armrest handle is installed with a cart controller: a throttle handle, an on-board computer with an LED display and a power on / off switch, and a brake handle for controlling the rim brake; a freight cart fender is installed at the lower part of the front end of the tubular frame; in addition, a tubular niche is installed at the rear end of the tubular frame to accommodate inventory, and there is a box with a controller and a battery between the niches. At the same time, one or more of the following devices powered by batteries through a step-down device are installed in the tubular niche: a blower, a vacuum cleaner, a broom, a lawn mower, a sickle, a brush cutter, a sprayer or a cultivator.

[0030] By using two drive-side motor wheels with spokes, whose motors obtain energy from the battery by pressing the throttle handle, it is easy to control not only a freight cart loaded with a cleaning device, but also a freight cart loaded with a fully loaded filling tank firmly fixed by a movably mounted tubular holder. The use of large-diameter wheels increases the off-road capability of the freight cart on obstacles such as irregular roads, stairs and roadsides, and reduces the weight of the entire device. Compared with other fixing methods (for example, fork joints), fixing the two drive-side motor wheels with reducing bushings helps to reduce the size of the device and also helps to improve the mobility and operability of the present invention. In addition, the use of a built-in motor allows the motor wheel to rotate directly, and since there is no transmission device for transmitting the moving force, the design of the device is simplified.

[0031] Installing a device powered by a rechargeable battery through a voltage step-down device in a tubular niche not only helps save space for arranging additional electrical devices without affecting the movement speed and operability of the present invention, but also prevents such devices from premature shutdown due to long-term use.

[0032] To increase the strength of the device, the tubular frame uses steel tubes, aluminum tubes or stainless steel tubes.

[0033] To optimize the operation of the plant, it is recommended to select the values ​​of the various technical characteristics from the following ranges:

[0034] —Tubular frame dimensions: length 400mm-1000mm, width 300mm-1000mm, height 400mm-1000mm;

[0035] —Motor wheel diameter: 16 inches to 29 inches;

[0036] —Handle size: length 400mm-1200mm, width 300mm-1000mm.

[0037] —Motor power of each motor wheel: 200W-500W.

[0038] In order to increase the convenience of using the device, one and / or more of the following devices can be installed on the armrest handle as a supplement to the cargo trolley control device: a tracker, a motion control button, a mechanical limit device for the throttle handle, a reverse switch button, and a smart speaker for voice-controlled audio systems.

[0039] In order to increase the safety of the device in use, it is recommended to fix reflective tape around the perimeter of the tubular frame.

[0040] The device can also be supplemented with other devices according to the needs of the user, for example, a removable trash bag holder can be installed on the tubular frame.

[0041] Figure 1 and Figure 2 The side view and top view of a freight cart with a blower are shown respectively, and the markings in the figure are as follows:

[0042] 1- Tubular frame;

[0043] 2- side motor wheels;

[0044] 3-Armrest handle;

[0045] 4-Throttle handle;

[0046] 5-Brake handle;

[0047] 6-Onboard computer with LED display;

[0048] 7-Power on / off switch;

[0049] 8-limit baffle;

[0050] 9-Plastic cans;

[0051] 10- Tubular retainer;

[0052] 11- tubular niche;

[0053] 12-battery box;

[0054] 13- Rim brake;

[0055] 14- Blower.

[0056] The freight trolley is a tubular frame 1, the dimensions of which are selected from the following ranges: length 400mm-1000mm, width 300mm-1000mm, height 400mm-1000mm. In the lower part of the side of the tubular frame 1, two driving side motor wheels 2 with spokes and motors are installed, and the side motor wheels are connected by a reducing bushing installed on each cantilever motor wheel axle and fix them in the eyes. In the upper part of the rear end of the tubular frame 1, there is a removable tubular holder 10 for fixing the plastic tank 9 installed in the tubular frame 1, and a handrail handle 3, including the freight trolley controller: throttle handle 4, brake handle 5 for controlling the rim brake 13, on-board computer 6 with LED display and power on / off switch 7. In the lower part of the front end of the tubular frame 1, a limit stopper 8 is installed, so that the device remains stable during shutdown and does not roll off independently. In addition, at the rear end of the tubular frame 1, a tubular niche 11 is installed to place inventory (garbage clamps, sweepers, shovels, rakes, etc.), and a controller and battery box 12 are installed behind the tubular niche.

[0057] Before the cargo trolley is used, the plastic tank 9 is installed in the tubular frame 1 and the necessary stock is placed in the tubular niches 11. For example, a blower 14 is installed in one of the tubular niches 11, which is connected to the battery 12 by a flexible cable via a step-down device. During operation, the nozzle of the blower 14 is focused so that the air flow is directed to the right to blow away leaves and garbage. The blower can be operated in connection with the battery 12 or independently after its own battery is charged. To start moving the device, the power on / off switch 7 should be turned to the "on" position and the throttle handle 4 should be pressed. The two driving side motor wheels 2 are driven by the motors installed therein and are powered by the rechargeable battery 12. The user can guide the cargo trolley without any physical effort just by walking nearby. At the same time, the on-board computer with LED display 6 displays the battery usage, speed and other indicators of the trolley's operation. To stop the device from moving, the brake handle 5 on the handrail handle 3 must be pressed, pulling the cable to drive the rim brake 13, thereby clamping the rim of the side motor wheel 2. Another braking method is to release the throttle handle 4, stop the power supply to the motor, and stop the rotation of the side motor wheel 2, while the user's muscles also need to exert force.

[0058] Therefore, the technical result of the present invention is to improve the speed, mobility, operability and convenience of moving goods using a freight cart.

Claims

1. A freight cart, characterized in that: The utility model comprises a tubular frame for mounting a plastic tank; a handrail handle is provided at the upper part of the rear end of the tubular frame; a baffle is provided at the lower part of the front end of the tubular frame, and two driving side motor wheels with spokes and motors are provided on the baffle; The side motor wheels are fixed in the eyes by means of reducing bushings mounted on each cantilevered motor axle; at the upper part of the rear end of the tubular frame there is a removable tubular holder for attaching a plastic tank; the armrest handle is mounted with the cart controller: throttle grip, on-board computer with LED display and power on / off toggle switch, brake handle for controlling the rim brakes; at the lower part of the front end of the tubular frame there is a cart baffle; in addition, at the rear end of the tubular frame there are tubular niches mounted to accommodate the stock, between which there is a box with the controller and batteries.

2. A freight cart, characterized in that: The utility model comprises a tubular frame for mounting a plastic tank; a handrail handle is provided at the upper part of the rear end of the tubular frame; a baffle is provided at the lower part of the front end of the tubular frame, and two driving side motor wheels with spokes and motors are provided on the baffle; The side motor wheels are fixed in the eyes by means of reducing bushings mounted on each cantilever motor axle; a removable tubular holder is provided at the upper part of the rear end of the tubular frame for attaching a plastic tank; the armrest handle is mounted with cart controllers: throttle handle, on-board computer with LED display and power on / off toggle switch, brake handle for controlling rim brakes; a cart baffle is mounted at the lower part of the front end of the tubular frame; in addition, tubular niches are mounted at the rear end of the tubular frame to accommodate inventory, between which there is a box containing a controller and batteries; at the same time, one or more of the following devices powered by batteries through a step-down device are mounted in the tubular niches: a blower, a vacuum cleaner, a broom, a lawn mower, a sickle, a brush cutter, a sprayer or a cultivator.

3. A freight cart according to any one of claims 1 or 2, characterized in that: Tubular frames are made from steel, aluminum or stainless steel tubes.

4. A freight cart according to any one of claims 1 or 2, characterized in that: The tubular frame has the following dimensions: length 400mm-1000mm, width 300mm-1000mm, height 400mm-1000mm.

5. A freight cart according to any one of claims 1 or 2, characterized in that: The diameter of the motor wheel is 16 inches - 29 inches.

6. A freight cart according to any one of claims 1 or 2, characterized in that: The length of the handrail handle is 400mm-1200mm, and the width is 300mm-1000mm.

7. A freight cart according to any one of claims 1 or 2, characterized in that: The power of the motor on each motor wheel is 200W-500W.

8. A freight cart according to any one of claims 1 or 2, characterized in that: The armrest handle is additionally equipped with one and / or more of the following devices: a tracker, a motion control button, a mechanical limit device for the throttle handle, a reverse switch button, and an intelligent speaker for a voice-controlled audio system.

9. A freight cart according to any one of claims 1 or 2, characterized in that: A reflective tape is fixed along the periphery of the tubular frame.

10. A freight cart according to any one of claims 1 or 2, characterized in that: A removable trash bag holder is mounted on the tubular frame.

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