Kitchen waste collection and transport vehicle with kitchen waste plastic bag feeding device

Abstract

A kitchen waste collecting and transporting vehicle includes a main vehicle body, a kitchen waste storage tank, a lifting device provided on the kitchen waste storage tank, a high-concentration kitchen waste conveying device for unloading high-concentration kitchen waste in the kitchen waste storage tank, and a low-concentration kitchen waste conveying device for unloading low-concentration kitchen waste in the kitchen waste storage tank. The vehicle further includes a kitchen waste plastic bag feeding device for feeding a kitchen waste plastic bag, the feeding device including a device body for accommodating the kitchen waste plastic bag, a pulverizing shaft for pulverizing the plastic bag and kitchen waste in the plastic bag, and a spiral shaft for conveying the kitchen waste and plastic.

Description

Technical Field

[0001] This disclosure relates to a food waste collection and transportation vehicle that can easily collect and transport food waste with minimal manpower, regardless of location or area, such as narrow neighborhood alleys, and more specifically, to a food waste collection and transportation vehicle that includes a food waste plastic bag dispensing device configured to easily collect food waste plastic bags discarded separately from the food waste while collecting the food waste. Background Technology

[0002] With recent industrial development, the increase in food waste has become a social problem. In particular, the amount of food waste generated by restaurants and households is not only increasing, but it also decomposes rapidly in a short period of time, producing a foul odor and thus becoming a major cause of environmental pollution.

[0003] Therefore, in order to reduce environmental pollution caused by kitchen waste discarded by individual households, restaurants and other businesses, the discarded kitchen waste is collected by kitchen waste collection vehicles, and then processed and recycled to make fertilizer or feed, and to form energy products such as methane gas.

[0004] Typically, a food waste collection vehicle is a vehicle that collects food waste from collection containers set up by households or restaurants and then transports the collected food waste to a designated location for processing. A food waste collection vehicle includes a loading compartment capable of collecting and storing food waste disposed of by individual households or restaurants, and a lifting device for raising the collection containers containing food waste to the loading compartment's loading opening area.

[0005] Therefore, after the collection container containing food waste is lifted by the lifting device, the food waste is poured into the loading chamber through the inlet opening area. The empty collection container is then lowered again by the lifting device and returned to its original position. The collected food waste is then transported to the food waste treatment facility, thus completing the food waste collection and transportation operation.

[0006] However, since most traditional food waste collection vehicles are large, collecting food waste in confined areas such as narrow neighborhood alleys is not easy. In some cases, smaller vehicles must be used to collect food waste.

[0007] In this situation, the small amount of food waste collected needs to be transported to food waste treatment facilities multiple times, generating a large amount of foul odor and incurring significant transportation costs, which is detrimental both environmentally and economically. Furthermore, food waste collection requires at least two to three workers, leading to labor costs and reduced administrative efficiency.

[0008] When ordinary households or businesses dispose of kitchen waste, it is common for the waste to be placed in plastic bags instead of being put into collection containers and illegally dumped next to or around the containers. This not only causes discomfort to residents due to the foul odor and pollution, but also lacks a suitable method for collecting such plastic bags of kitchen waste using specialized collection vehicles designed for collecting containers. Therefore, there is an urgent need to develop countermeasures.

[0009] Relevant existing technical documents Patent Document 1: Korean Patent No. 100974011.

[0010] Patent Document 2: Korean Patent No. 101071957.

[0011] Patent document 3: Korean Patent No. 101228040.

[0012] Patent document 4: Korean Patent No. 101981268. Summary of the Invention

[0013] Various aspects of this disclosure provide a food waste collection and transportation vehicle, comprising a food waste plastic bag disposal device with a food waste plastic bag collection container. The container includes a plastic bag shredder and an inclined auger to easily collect the food waste plastic bags along with the food waste when it is collected from the collection container. This food waste collection and transportation vehicle is implemented as a small truck with a rated load capacity of 5 tons or less, thereby easily collecting food waste even in confined areas such as narrow neighborhood alleys, while also increasing the amount of food waste collected. Furthermore, this food waste collection and transportation vehicle can be implemented as a system in which food waste collected by a small vehicle with a load capacity of 1 to 5 tons can be easily transferred and loaded onto a large vehicle with a load capacity of 25 tons or more, and then transported to a food waste treatment facility. In addition, this food waste collection and transportation vehicle allows unloading of collected food waste in a sealed state to minimize odor generation.

[0014] According to one aspect, a food waste collection and transportation vehicle includes: a main body; a food waste storage tank disposed on the main body and having a covered food waste inlet; a lifting device disposed on one side of the food waste storage tank; a high-concentration food waste conveying device disposed in a structure extending from the inside of the food waste storage tank through a side portion to the top, for unloading high-concentration food waste contained in the food waste storage tank; and a low-concentration food waste conveying device disposed in a structure extending from the side portion of the food waste storage tank to the top, for unloading low-concentration food waste contained in the food waste storage tank.

[0015] The high-concentration food waste conveying device includes a device for continuously conveying food waste driven by its own motor, namely a first screw conveyor, a second screw conveyor, and a third screw conveyor. The first screw conveyor is located inside the food waste storage tank and is configured to convey the food waste contained in the food waste storage tank. The second screw conveyor is located on the side of the food waste storage tank and is configured to convey the food waste received from the first screw conveyor. The third screw conveyor is located on the top of the food waste storage tank and is configured to convey the food waste received from the second screw conveyor.

[0016] The food waste collection and transportation vehicle also includes a food waste plastic bag dispensing device, which is located on one side of the second screw conveyor and configured to dispense food waste plastic bags through it. The food waste plastic bag dispensing device includes: a device body having an openable upper body cover and configured to receive food waste plastic bags; a shredder shaft located in the device body and configured to be operated by a shredder motor to shred the plastic bags and the food waste contained in the plastic bags; and a screw shaft located in the device body, connected to the second screw conveyor, and configured to be operated by a conveyor motor to convey the food waste and plastic into the second screw conveyor.

[0017] The crushing shafts can be configured as a pair of crushing shafts arranged in parallel to each other and operatively connected by a drive gear, each of the crushing shafts having a crushing blade.

[0018] The screw shaft can be located below the crushing shaft and arranged in a downward tilted position, so that the side connected to the second screw conveyor faces downward.

[0019] The kitchen waste plastic bag feeding device may include: a first guide plate with an inclined structure disposed in the device body and configured to guide the kitchen waste plastic bag to the crushing shaft; and a second guide plate with an inclined structure disposed in the device body and configured to guide the crushed kitchen waste and plastic to the screw shaft.

[0020] In one example embodiment, the second and third screw conveyors may each include a bucket screw with helical blades configured to facilitate the conveying of high-moisture kitchen waste, wherein flat bar members of approximately 35 mm in height are vertically connected along the outer edge portion of the screw, such that the helical blades act as buckets.

[0021] In one example embodiment, the first screw conveyor of the high-concentration kitchen waste conveying device may further include a shredder rotating blade disposed on the screw and a shredder fixed blade disposed near the screw.

[0022] In one example embodiment, the third spiral conveyor of the high-concentration food waste conveying device can be configured to control horizontal rotation via a conveyor rotating device including a motor and gears, and to control vertical tilt via a conveyor lifting device including cylinders.

[0023] In one example embodiment, a low-concentration food waste conveying device may include a pump disposed on the side portion of a food waste storage tank and configured to draw in food waste, and an articulated conduit connected to the pump discharge side, the articulated conduit comprising a combination of multiple conduits configured to be articulated at various angles in various directions via their respective joint portions and positioned at various heights.

[0024] In one example embodiment, the front end of the first screw conveyor of the high-concentration food waste conveying device and the suction side of the pump of the low-concentration food waste conveying device can be connected to each other, so that the food waste conveyed during the reverse drive of the first screw conveyor can be supplied to the suction side of the pump.

[0025] In one example embodiment, the rear of the main body food waste storage tank may be provided with a door that can be opened and closed via a door cylinder, thereby allowing the entire rear of the food waste storage tank to be opened during cleaning or inspection operations.

[0026] In one example embodiment, the lower inner part of the door may be provided with a food waste guide plate with an inclined structure, configured to prevent food waste from being pushed into corner areas and accumulating during the conveying of food waste by the first screw conveyor.

[0027] In one example embodiment, the lid of the food waste storage tank on the main body can be automatically opened and closed by a lid cylinder.

[0028] As described above, the kitchen waste collection and transportation vehicle according to this disclosure, which includes a device for disposing of plastic bags for kitchen waste, has the following effects: (1) Since the vehicles are small trucks with a rated load of 5 to 10 tons or less, kitchen waste can be easily collected even in restricted areas such as narrow neighborhood alleys, and the collection volume can be increased. As a result, the equipment operation rate of kitchen waste treatment facilities can be improved. In particular, during the kitchen waste collection process, kitchen waste plastic bags can also be easily collected together, thereby improving the collection efficiency and collection productivity of kitchen waste collection operations.

[0029] (2) The kitchen waste plastic bags collected by the kitchen waste plastic bag input device provided in the kitchen waste collection and transportation vehicle are crushed into appropriate sizes by plastic bag crusher, inclined screw, etc., and then put into the collection station. This not only improves the transportation efficiency of kitchen waste, but also improves the final processing efficiency of kitchen waste at the collection station.

[0030] (3) By applying a system in which kitchen waste collected by small trucks of 1 to 5 tons can be easily transported and loaded onto medium trucks of 10 tons, and then easily transported from medium trucks of 10 tons to large trucks of 25 tons or more, and finally transported to kitchen waste treatment facilities by large trucks, the number of times kitchen waste is transported can be reduced, thereby reducing transportation costs.

[0031] (4) Since kitchen waste can be easily transported using high-concentration kitchen waste conveying devices and low-concentration kitchen waste conveying devices during the collection and unloading of kitchen waste, the number of workers can be reduced to the minimum, thereby reducing labor costs and achieving efficient human resource management.

[0032] (5) Because kitchen waste can be transported and unloaded in a sealed manner, the generation of odor can be minimized.

[0033] In addition, another effect is that by connecting the front end of the first screw conveyor and the suction side of the pump to each other, the pump is operated while the first screw conveyor is driven in reverse, so that the low-concentration kitchen waste is forced to be transported along the first screw conveyor to the pump and discharged to the outside. This allows for the quick, convenient, and residue-free discharge of the remaining low-concentration kitchen waste in the kitchen waste storage tank. Compared with the method of simply allowing the low-concentration kitchen waste to flow downwards, this improves the discharge efficiency and operability of low-concentration kitchen waste.

[0034] In other words, by using a combination of a first screw conveyor and a pump, where the first screw conveyor forces liquid out while conveying liquid (for example, the first screw conveyor has two functions: conveying high-concentration kitchen waste and conveying low-concentration kitchen waste), the remaining low-concentration kitchen waste in the kitchen waste storage tank can be discharged quickly, conveniently, and completely, thereby improving the discharge efficiency of low-concentration kitchen waste, and improving operability because the operation is not complicated. Attached Figure Description

[0035] The foregoing contents and other objects, features and advantages of this disclosure will become more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, wherein: Figure 1 and Figure 2 This is a perspective view of a kitchen waste plastic bag dispensing device in a kitchen waste collection and transportation vehicle according to an embodiment of the present disclosure; Figures 3 to 5 These are front, plan, and side views of a kitchen waste plastic bag dispensing device in a kitchen waste collection and transportation vehicle according to embodiments of the present disclosure; Figure 6 and Figure 7This is a perspective view of a kitchen waste collection and transportation vehicle equipped with a kitchen waste plastic bag dispensing device according to an embodiment of the present disclosure; Figures 8 to 10 The figures are a plan view, a side view, and a rear view of a kitchen waste collection and transportation vehicle equipped with a kitchen waste plastic bag dispensing device according to an embodiment of the present disclosure. Figure 11 This is a perspective view of a high-concentration kitchen waste conveying device equipped with a kitchen waste plastic bag ingestion device in a kitchen waste collection and transportation vehicle according to an embodiment of the present disclosure; Figure 12 This is a perspective view of a low-concentration kitchen waste conveying device equipped with a kitchen waste plastic bag dispensing device in a kitchen waste collection and transportation vehicle according to an embodiment of the present disclosure; and Figures 13 to 15 The figures are a plan view, a side view, and a rear view showing the operational state of a kitchen waste collection and transportation vehicle equipped with a kitchen waste plastic bag dispensing device, according to an embodiment of the present disclosure.

[0036] Label Explanation: 10: Main body 11: Cover 12: Kitchen waste inlet 13: Kitchen waste storage container 14: Lifting device 15: High-concentration kitchen waste conveying device 16: Low-concentration kitchen waste conveying device 17a, 17b, 17c: Gear motors 18: First Screw Conveyor 19: Second Screw Conveyor 20: Third Screw Conveyor 21: Rotary blades of a crusher 22: Fixed blades of the crusher 23: Conveyor Rotation Device 24: Conveyor Lifting Device 25: Pump 26: Connector section 27: Articulated pipes 28: Cylinder Valve 29: Door 30: Cylinder cover 31: Door hinge section 32: Kitchen waste guide board 33: Bushing 34: Rotating gear 35: Rotary motor 36: Lifting Cylinder 37: Spiral blade 100: Body cover 110: Device body 120: Crushing motor 130: Crushing Shaft 140: Conveyor motor 150: Spiral shaft 160: Kitchen waste plastic bag disposal device 170: Shredder blade 180: Transmission gear 190: First guide plate 200: Second guide plate 210: Body support component 220: Bearing 230: Motor support component 240: Spring 250: Pressure plate. Detailed Implementation

[0037] The present disclosure will now be described in detail with reference to the accompanying drawings.

[0038] Figure 1 and Figure 2 This is a perspective view of a kitchen waste plastic bag dispensing device in a kitchen waste collection and transportation vehicle according to an embodiment of the present disclosure. Figures 3 to 5 These are front, plan, and side views of a kitchen waste plastic bag dispensing device in a kitchen waste collection and transportation vehicle according to embodiments of the present disclosure.

[0039] like Figures 1 to 5 As shown, the food waste plastic bag disposal device 160 of the food waste collection and transportation vehicle allows not only the food waste contained in the food waste collection container to be collected when the vehicle collects food waste, but also the food waste plastic bags discarded around the food waste collection container, thus providing the advantage of easily collecting food waste and food waste plastic bags in the collection container.

[0040] Therefore, the food waste plastic bag disposal device 160 includes a device body 110 as a device that allows food waste plastic bags to be disposed of.

[0041] The device body 110 is a housing with a rectangular or circular tubular structure, which is vertically arranged and arranged side by side with one side of the second screw conveyor 19. It is supported on the second screw conveyor 19 by means of multiple body support members 210 through welding or bolt fastening structure.

[0042] In this case, the lower part of the device body 110 is tapered and configured to slope downward toward the second screw conveyor 19.

[0043] Furthermore, a main body cover 100 with an openable / closeable structure is provided on the upper part of the device body 110. Therefore, when a plastic bag for kitchen waste is placed into the device body 110, the main body cover 100 can be opened to place the plastic bag into the device body 110, and then the main body cover 100 can be closed again.

[0044] Here, the body cover 100 is preferably configured to open and close by pivoting up and down using a hinge portion (not shown) on one side.

[0045] In one example embodiment, the body cover 100 may be provided with a pressure plate 250, which receives force from the spring 240 and applies downward pressure as a device to assist in crushing plastic bags of kitchen waste.

[0046] For example, the spring 240 can be vertically disposed in the central portion of the inner surface of the body cover 100, with its upper end supported, and the pressure plate 250 can be horizontally disposed in the lower portion of the spring 240. In this case, the pressure plate 250 is allowed to move up and down under the elastic support of the spring 240.

[0047] Therefore, when the plastic bag containing kitchen waste is placed into the main body 110 and the main body cover 100 is closed, the pressure plate 250 continuously presses the plastic bag downwards, that is, presses it toward the crushing shaft 130, so that the plastic bag containing kitchen waste is crushed while being pressed toward the crushing shaft 130, thereby more effectively crushing the plastic bag and the kitchen waste in the plastic bag.

[0048] In addition, the food waste plastic bag feeding device 160 includes a crushing shaft 130, which serves as a device for crushing the plastic bag and the food waste inside the plastic bag.

[0049] The shredder shaft 130 is disposed in the device body 110 and rotates during the operation of the shredder motor 120 to shred kitchen waste plastic bags, i.e., kitchen waste and plastic.

[0050] For this purpose, two crushing shafts 130, each with a crushing blade 170, are arranged parallel to each other and horizontally within the device body 110. Both ends of each crushing shaft 130 are supported by bearings 220 on the body support member 210 supporting the device body 110 and bearings 220 on the motor support member 230 provided on the device body 110, so as to allow free rotation.

[0051] At this time, the shredding blades 170 set on the outer surfaces of the two parallel shredding shafts 130 are positioned in an alternating manner, so that the kitchen waste and plastic entering between the two shredding shafts 130 can be shredded more effectively.

[0052] The motor support 230 is disposed on one side of the outer surface of the device body 110. The crushing motor 120 and the bearing 220 are disposed on the motor support 230, and one of the two crushing shafts 130 is connected to the shaft of the crushing motor 120.

[0053] In addition, transmission gears 180 are respectively disposed at the rear end of two parallel crushing shafts 130, and the two transmission gears 180 are configured to rotate when meshed with each other.

[0054] In other words, through the power transmission of the transmission gear 180, the two crushing shafts 130 can be operated by a single crushing motor 120.

[0055] Therefore, when the food waste plastic bag is inserted into the device body 110, the food waste plastic bag enters the area where the two crushing shafts 130 operated by the crushing motor 120 are located. Then, the food waste plastic bag and the food waste in the plastic bag are finely crushed as they pass between the two crushing shafts 130, and can then fall onto the spiral shaft 150 located below.

[0056] In addition, the food waste plastic bag feeding device 160 includes a screw shaft 150 as a device for conveying the crushed food waste and plastic into the second screw conveyor 19.

[0057] The screw shaft 150 is located below the crushing shaft 130 in the device body 110 so that it is supported at both ends between the bearings 220 on the motor support 230 and the second screw conveyor 19.

[0058] Here, the spiral shaft 150 provided as described above, for example, a combination of a central spiral and a pipe surrounding the spiral (where the pipe is an open pipe at the top so that food waste and plastic can be introduced into the spiral), is in internal communication with the second spiral conveyor 19.

[0059] Furthermore, a motor support 230 is disposed on one side of the outer surface of the device body 110. A conveyor motor 140 and a bearing 220 are disposed on the motor support 230, and a screw shaft 150 is connected to the shaft of the conveyor motor 140. In addition, when the conveyor motor 140 is operated, the screw shaft 150 rotates to convey food waste and plastics.

[0060] In one example embodiment, the screw shaft 150 may be located below the shredder shaft 130 and arranged in a downward tilted position, such that the side connected to the second screw conveyor 19 faces downward, thereby enabling more efficient transport of food waste and plastics.

[0061] Therefore, the kitchen waste and plastic crushed by the upper crushing shaft 130 fall onto the screw shaft 150. The falling kitchen waste and plastic are pushed downward and conveyed by the rotating screw shaft 150, and then introduced into the interior of the second screw conveyor 19.

[0062] In addition, the kitchen waste plastic bag feeding device 160 includes a first guide plate 190 and a second guide plate 200, which serve as a device for gathering kitchen waste plastic bags, kitchen waste and plastic into the crushing shaft 130 and the screw shaft 150 within the device body 110.

[0063] The first guide plate 190 is configured to extend downward from a position on the inner wall of both sides of the device body 110 (e.g., above the crushing shaft) to the position where the crushing shaft 130 is located, for example, to the side of the pair of crushing shafts 130, while surrounding the side periphery of the crushing shaft 130.

[0064] The second guide plate 200 is configured within the device body 110 to extend from the lower end of the first guide plate 190 in a two-stage inclined shape (e.g., inclined downward and outward from the end of the first guide plate, and then inclined downward and inward) to the periphery of the lower end of the spiral shaft 150.

[0065] Therefore, the kitchen waste plastic bag inserted into the device body 110 is guided along the first guide plate 190, gathers on the crushing shaft 130 and is crushed. Subsequently, the crushed kitchen waste and plastic are guided along the second guide plate 200, gather on the screw shaft 150 and are conveyed.

[0066] Therefore, the process of introducing kitchen waste plastic bags from the kitchen waste plastic bag feeding device configured as described above into the second screw conveyor 19 is as follows.

[0067] When collecting kitchen waste, the kitchen waste collection and transportation vehicles can not only collect the kitchen waste contained in the kitchen waste collection containers, but also collect the kitchen waste plastic bags discarded around the kitchen waste collection containers.

[0068] Therefore, when the main body cover 100 is opened and the kitchen waste plastic bag is inserted into the device body 110, the kitchen waste plastic bag is guided along the first guide plate 190 to gather on the crushing shaft 130, and is pressed by the pressure plate 250, thereby being crushed between the two rotating crushing shafts 130.

[0069] In addition, the kitchen waste plastic bag and the kitchen waste finely crushed by the crushing shaft 130 in the plastic bag fall downwards and are guided along the second guide plate 200 to gather on the spiral shaft 150.

[0070] Subsequently, food waste and plastics are conveyed into the interior of the second screw conveyor 19 via the rotating screw shaft 150. The food waste and plastics can then be conveyed upwards together with the food waste being conveyed along the interior of the second screw conveyor 19. As a result, the operation of collecting food waste in the food waste collection container and the operation of collecting food waste plastic bags around the food waste collection container can be easily performed simultaneously.

[0071] Figure 6 and Figure 7 This is a perspective view showing a food waste collection and transportation vehicle equipped with a food waste plastic bag dispensing device according to an embodiment of the present disclosure. Figures 8 to 10 These are top, side, and rear views of a kitchen waste collection and transportation vehicle equipped with a kitchen waste plastic bag dispensing device according to an embodiment of the present disclosure. Figure 11 This is a perspective view showing a high-concentration kitchen waste conveying device in a kitchen waste collection and transport vehicle equipped with a kitchen waste plastic bag dispensing device according to an embodiment of the present disclosure. Figure 12 This is a perspective view showing a low-concentration kitchen waste conveying device in a kitchen waste collection and transport vehicle equipped with a kitchen waste plastic bag dispensing device according to an embodiment of the present disclosure.

[0072] like Figures 6 to 12 As shown, the food waste collection and transportation vehicle includes a main body 10, such as the main body 10 of a dump truck, as a device for collecting and transporting food waste.

[0073] The main vehicle body 10 is a vehicle that collects kitchen waste directly from kitchen waste collection containers placed in homes, restaurants, etc., as well as kitchen waste collection containers set up at kitchen waste collection stations in apartment complexes, etc. It is actually a small truck, such as a 5-ton dump truck or other small dump truck.

[0074] The food waste storage tank 13 is installed in the rear loading area of ​​the main body 10, so food waste can be collected and transported while the vehicle is being moved with the food waste storage tank 13 loaded.

[0075] Specifically, the main body 10 is a truck capable of discharging food waste by tilting the food waste storage tank 13, i.e., a dump truck. Therefore, when directly introducing food waste into a food waste collection site below ground level, the main body can dump the food waste by tilting the food waste storage tank 13 and opening the door 29 of the food waste storage tank 13. Furthermore, when transporting food waste to a large truck, the main body can use high-concentration and low-concentration food waste conveying devices 15 and 16 to transport the food waste.

[0076] In addition, the food waste collection and transportation vehicle includes a food waste storage tank 13 as a device for containing food waste collected from the food waste collection container.

[0077] The food waste storage tank 13 has a rectangular cylindrical structure that can receive food waste and is integrally installed on the main body 10.

[0078] The upper part of the food waste storage container 13 is provided with one or more food waste inlets 12 with lids 11, such as two food waste inlets 12, so that food waste can be introduced into the food waste storage container 13 through them. The lids 11 can be automatically opened and closed by a lid cylinder 30.

[0079] In addition, a door 29 is provided on the rear side of the food waste storage container 13, the size of which corresponds to the entire area of ​​the rear surface portion. The door 29 is configured to rotate about the upper door hinge portion 31 to open or close when the door cylinder 28 is operated.

[0080] Therefore, when cleaning or inspecting the interior of the food waste storage container 13, the door 29 can be opened to access the entire rear of the food waste storage container 13, making it easy to perform various tasks.

[0081] Here, a food waste guide plate 32 with an inclined structure is provided on the lower part of the inner surface of the door 29. The food waste guide plate 32 is used to prevent food waste from being pushed into corner areas and accumulating when it is transported to the first screw conveyor 18.

[0082] In addition, the food waste collection and transportation vehicle includes a lifting device 14 as a means of raising or lowering the food waste collection container.

[0083] The lifting device 14 is vertically mounted on one side of the food waste storage tank 13, for example, on one side of the food waste inlet 12.

[0084] Therefore, when the operator loads the food waste collection container onto the lifting device 14 and operates the lifting device 14, the food waste collection container is lifted to the height of the food waste inlet 12 and flipped, so that the food waste in the food waste collection container is dumped and enters the food waste storage tank 13 through the food waste inlet 12.

[0085] Since the lifting device 14 is the same as the lifting device provided in conventional food waste collection vehicles, its detailed description will be omitted.

[0086] In addition, the food waste collection and transportation vehicle includes a high-concentration food waste conveying device 15 as a device for unloading high-concentration food waste (e.g., lumps, sludge, etc.) contained in the food waste storage tank 13 when the collected food waste is transported to a large truck of about 25 tons.

[0087] The high-concentration kitchen waste conveying device 15 is configured to extend from the inside of the kitchen waste storage tank 13 through the side portion to the top, convey the high-concentration kitchen waste in the kitchen waste storage tank 13 in a bucket screw manner, and discharge the high-concentration kitchen waste from the kitchen waste storage tank 13.

[0088] For this purpose, the high-concentration food waste conveying device 15 includes three screw conveyors, for example, a first screw conveyor 18 disposed inside the food waste storage tank 13 and configured to convey the food waste contained in the food waste storage tank 13; a second screw conveyor 19 disposed on the side of the food waste storage tank 13 and configured to convey the food waste received from the first screw conveyor 18; and a third screw conveyor 20 disposed on the upper part of the food waste storage tank 13 and configured to convey the food waste received from the second screw conveyor 19.

[0089] The first screw conveyor 18, the second screw conveyor 19, and the third screw conveyor 20 are configured in a linked manner. For example, the rear end of the first screw conveyor 18 is connected to the lower end of the second screw conveyor 19, and the upper end of the second screw conveyor 19 is connected to the front end of the third screw conveyor 20.

[0090] Therefore, when the first screw conveyor 18, the second screw conveyor 19 and the third screw conveyor 20 are driven, the kitchen waste contained in the kitchen waste storage tank 13 can be transported along the first screw conveyor 18 → second screw conveyor 19 → third screw conveyor 20 and discharged to the outside.

[0091] Furthermore, geared motors 17a, 17b, and 17c for driving the screws are respectively installed on the first screw conveyor 18, the second screw conveyor 19, and the third screw conveyor 20. In this case, a reversible drive motor can be used for the geared motor 17a installed on the first screw conveyor 18.

[0092] By using a reversible drive motor as the geared motor 17a of the first screw conveyor 18, high-concentration kitchen waste can be conveyed to the second screw conveyor 19 during the forward drive of the geared motor 17a, and low-concentration kitchen waste can be conveyed to the pump 25 of the low-concentration kitchen waste conveying device 16 during the reverse drive of the geared motor 17a.

[0093] Here, the first screw conveyor 18 and the second screw conveyor 19 are fixedly mounted on the food waste storage tank 13, and the third screw conveyor 20 is mounted on the upper side of the second screw conveyor 19, for example, on the rotatable upper part of the second screw conveyor 19, so that it can rotate not only horizontally but also vertically.

[0094] In one example embodiment, the second screw conveyor 19 in a vertical orientation and the third screw conveyor 20 in a horizontal and inclined orientation each include a bucket screw with screw blades 37 configured to have a predetermined height along the edge of the screw and to be perpendicular to the screw.

[0095] Therefore, the second screw conveyor 19 and the third screw conveyor 20 are characterized by their ability to easily transport high-moisture kitchen waste, etc., by using a screw with helical blades 37.

[0096] Specifically, the high-concentration food waste conveying device 15 includes a shredder rotating blade 21 and a shredder fixed blade 22 as a device for shredding food waste when conveying it to the first screw conveyor 18.

[0097] The shredder rotating blade 21 includes a plurality of circular blades mounted on the screw of the first screw conveyor 18 and configured to rotate together with the screw when it rotates. As the plurality of circular blades, which are mounted at predetermined intervals along the screw, rotate, they cooperate with the corresponding shredder fixed blades 22 to shred large or clumped food waste.

[0098] Here, the pulverizer rotating blade 21 is mounted on the screw in a structure that allows it to rotate via a pin, so that it can rotate around the pin. At the same time, when the screw rotates, the pulverizer rotating blade 21 can also rotate with the screw, thus drawing a screw trajectory.

[0099] The fixed blade 22 of the shredder is provided in a rod shape, arranged horizontally parallel to both sides of the helix of the first screw conveyor 18, and configured such that both ends are fixed to the housing. Serrations are provided on the inner surface of the fixed blade 22, i.e., the surface facing the rotating blade 21 of the shredder. Since the blade portion of the rotating blade 21 passes through the serrations provided as described above, food waste can be finely shredded by both the rotating blade 21 and the blade portion of the fixed blade 22.

[0100] Therefore, when the first screw conveyor 18 is driven, the kitchen waste is conveyed by the screw and simultaneously crushed by the rotating blade 21 and the fixed blade 22 of the crusher, which not only improves the conveying efficiency of the kitchen waste, but also improves the processing efficiency in subsequent processes.

[0101] In one example embodiment, the third spiral conveyor 20 of the high-concentration food waste conveying device 15 has a structure in which horizontal rotation is controlled by a conveyor rotating device 23 and vertical tilting is controlled by a conveyor lifting device 24, so that the third spiral conveyor 20 can maintain an appropriate posture during vehicle travel and during food waste unloading.

[0102] Therefore, the conveyor rotating device 23 includes a bushing 33, a rotating gear 34, a rotating motor 35, etc.

[0103] Here, the housing of the second screw conveyor 19 is divided into an upper housing and a lower housing, which are connected by a cylindrical bushing 33. In this case, the upper housing can rotate relative to the fixed lower housing together with the bushing 33.

[0104] In addition, a rotating gear 34 is disposed on the outer peripheral surface of the bushing 33, and a rotating motor 35 supported by a bracket on the food waste storage tank 13 is disposed next to the bushing 33, wherein the gear on the shaft of the rotating motor 35 meshes with the rotating gear 34.

[0105] Therefore, when the rotary motor 35 is operating, the bushing 33, the upper housing of the second screw conveyor 19, and the entire third screw conveyor 20 connected to the second screw conveyor 19 can rotate horizontally around the housing axis of the second screw conveyor 19 through power transmission between the gear on the motor shaft and the rotary gear 34 on the bushing 33.

[0106] In addition, the conveyor lifting device 24 includes a lifting cylinder 36 that provides lifting power.

[0107] The lifting cylinder 36 is arranged in parallel at the lower part of the third screw conveyor 20. The cylinder body of the lifting cylinder 36 is supported by a bracket on the bushing 33, and the cylinder rod is supported by a bracket on the housing of the third screw conveyor 20.

[0108] At this time, the circular pipe connecting the front end of the housing of the third screw conveyor 20 and the upper end of the housing of the second screw conveyor 19 is connected in the middle by a cylindrical bushing (not shown) which is a type of axial pipe, so that the third screw conveyor 20 can rotate up and down around the axis of the circular pipe.

[0109] Therefore, when the lifting cylinder 36 moves back and forth, the third screw conveyor 20 rotates around the axis of the circular pipe, thereby causing the rear end portion of the third screw conveyor 20 to move upward or downward.

[0110] In addition, the food waste collection and transportation vehicle includes a low-concentration food waste conveying device 16 as a device for unloading low-concentration food waste (e.g., food waste wastewater, food waste residue, etc.) contained in the food waste storage tank 13 when the collected food waste is transported to a large truck of about 25 tons.

[0111] The low-concentration food waste conveying device 16 is configured to extend from the side portion of the food waste storage tank 13 to the top to unload the low-concentration food waste contained in the food waste storage tank 13.

[0112] Therefore, the low-concentration food waste conveying device 16 includes a pump 25 for sucking in and pumping food waste, and an articulated pipe 27 for conveying and discharging food waste to the outside.

[0113] Pump 25 is mounted on the side portion of food waste storage tank 13. The suction side of pump 25 is connected to the front end portion of the first screw conveyor 18, i.e., the exposed shell portion of food waste storage tank 13; the discharge side of pump 25 is connected to the lower end portion of the hinged pipe 27, i.e., the lower end portion of the pipe that is vertically fixed to the side portion of food waste storage tank 13.

[0114] Therefore, when pump 25 is in operation, kitchen waste supplied by the first screw conveyor 18 can be transported to the articulated pipe 27 by the pumping action of pump 25.

[0115] The articulated pipe 27 has a combined structure including a pipe fixed vertically disposed on the side portion of the food waste storage tank 13 and connected to the pump 25, and a plurality of pipes configured to be articulated at various angles and positioned at various heights in various directions via their respective joint portions 26.

[0116] Here, the joint portion 26 has a structure similar to that of a conventional concrete pump truck boom, so each pipe can freely take on various postures.

[0117] For example, during vehicle travel, the articulated pipe 27 can be folded and tightly attached to the upper part of the food waste storage tank 13, and during food waste unloading, the articulated pipe 27 can be unfolded and lifted upwards, for example, raised above the food waste storage tank 13.

[0118] Therefore, with the front end of the first screw conveyor 18 of the high-concentration food waste conveying device 15 and the suction side of the pump 25 of the low-concentration food waste conveying device 16 connected to each other, when the first screw conveyor 18 is driven in reverse and the pump 25 is operated, the food waste in the food waste storage tank 13 is conveyed to the pump 25 along the first screw conveyor 18, and then conveyed along the articulated pipe 27 by the pumping action of the pump 25, discharged to the outside and transported to a large truck.

[0119] Figures 13 to 15 These are top, side, and rear views showing the operational status of a food waste collection and transportation vehicle equipped with a food waste plastic bag dispensing device according to an embodiment of the present disclosure.

[0120] like Figures 13 to 15 As shown, when collecting kitchen waste from restaurants, households, etc., the main body 10 of a 5-ton truck is operated to collect kitchen waste while driving through narrow alleys and other narrow passages.

[0121] With the lid 11 of the food waste storage tank 13 open, load the food waste collection container (not shown) onto the lifting device 14, and then operate the lifting device 14 to introduce the food waste from the food waste collection container into the food waste storage tank 13.

[0122] When a certain amount of food waste is collected in the food waste storage tank 13 by repeating this operation, the food waste is transported to a 25-ton large truck and then processed at the food waste collection site, or it is transported directly by a 5-ton small truck and processed at the food waste collection site.

[0123] In one example, when food waste is transported from a 5-ton mini-truck and loaded onto a 25-ton large truck, during the unloading of high-concentration food waste using the high-concentration food waste conveying device 15, the conveyor rotating device 23 and the conveyor lifting device 24 are operated, while the third screw conveyor 20 is rotated and lifted, such that the discharge side of the rear end of the third screw conveyor 20 is positioned at the food waste inlet (not shown) of the food waste storage tank (not shown) of the 25-ton large truck.

[0124] Subsequently, when the first screw conveyor 18 is driven in the forward direction, and the second screw conveyor 19 and the third screw conveyor 20 are operated simultaneously, the high-concentration kitchen waste in the kitchen waste storage tank 13 is transported along the first screw conveyor 18, the second screw conveyor 19 and the third screw conveyor 20, and then discharged and loaded into the kitchen waste storage tank of a 25-ton large truck.

[0125] In addition, after a certain amount of high-concentration kitchen waste is transported and loaded, the remaining low-concentration kitchen waste can be transported using the low-concentration kitchen waste conveying device 16.

[0126] That is, during the unloading of low-concentration kitchen waste, the articulated pipe 27 is articulated and raised to a predetermined height, and the discharge side of its end pipe is positioned at the kitchen waste inlet of the kitchen waste storage tank of the 25-ton large truck.

[0127] Subsequently, when the first screw conveyor 18 is driven in reverse and the pump 25 is operated, the low-concentration kitchen waste in the kitchen waste storage tank 13 is conveyed along the first screw conveyor 18, then sucked into the pump 25, and discharged through the articulated pipe 27 to be loaded into the kitchen waste storage tank of the 25-ton large truck.

[0128] In this way, food waste can be efficiently transported from multiple small trucks ranging from 1 ton to 5 tons and loaded onto a single large 25-ton truck, and the food waste transported and loaded in this way can be transported by the 25-ton large truck and collected at the food waste collection site.

[0129] In particular, during food waste collection, separately placed food waste plastic bags can be easily put into the food waste plastic bag disposal device 160 and collected, thereby improving the cleanliness around the food waste storage tank and increasing the efficiency of food waste collection operations.

[0130] As another example, when kitchen waste collected by small trucks of 1 to 5 tons is transported to the kitchen waste collection site for direct processing, the kitchen waste storage tank 13 is tilted and tilted to an inclined position, and then the door cylinder 28 is operated to open the door 29, so that the kitchen waste contained in the kitchen waste storage tank 13 is dumped out as is and can be collected at the kitchen waste collection site.

[0131] As described above, this disclosure provides a novel food waste collection and transportation vehicle, implemented as a small truck with a vehicle capacity of 5 tons or less. This not only allows for easy collection of food waste in narrow areas such as narrow alleys in communities but also increases the collection volume. Therefore, a system can be implemented in which food waste collected by the small vehicle can be easily transported and loaded into a large vehicle with a capacity of 25 tons or more, and then transported to a food waste treatment facility. Furthermore, the collected food waste can be unloaded in a sealed state, thereby reducing odor generation. In particular, by providing food waste plastic bag collection containers including plastic bag shredders, tilting augers, etc., the efficiency of food waste collection operations can be improved, for example, by easily collecting food waste plastic bags along with the food waste itself.

Claims

1. A vehicle for collecting and transporting kitchen waste, characterized in that, include: Main body; A food waste storage tank is mounted on the main body of the vehicle and has a covered food waste inlet; A lifting device is installed on one side of the food waste storage tank; A high-concentration food waste conveying device is configured to extend from the interior of the food waste storage tank via a side portion to the top to unload high-concentration food waste contained in the food waste storage tank; as well as A low-concentration food waste conveying device is configured to extend from the side portion to the top of the food waste storage tank to unload low-concentration food waste contained in the food waste storage tank. The high-concentration food waste conveying device includes a first screw conveyor, a second screw conveyor, and a third screw conveyor, each driven by its own motor to continuously convey food waste. The first screw conveyor is located inside the food waste storage tank and is configured to convey the food waste contained in the tank. The second screw conveyor is vertically fixed and supported on the side of the food waste storage tank and is configured to convey the food waste received from the first screw conveyor. The third screw conveyor is located at the top of the food waste storage tank and is configured to convey the food waste received from the second screw conveyor. The food waste collection and transportation vehicle also includes a food waste plastic bag inlet device, which is disposed on one side of the second screw conveyor and configured to inlet food waste plastic bags. The food waste plastic bag inlet device includes: a cylindrical device body with an openable upper body cover and configured to accommodate food waste plastic bags; a shredding shaft disposed in the device body and configured to be operated by a shredding motor to shred the plastic bag and the food waste contained in the plastic bag; and a screw shaft disposed in the device body, connected to the second screw conveyor, and configured to be operated by a conveying motor to convey the food waste and plastic into the second screw conveyor.

2. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The crushing shafts are configured as a pair of crushing shafts arranged parallel to each other and operatively connected by a transmission gear, each of the pair of crushing shafts having a crushing blade.

3. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The spiral shaft is located below the crushing shaft and is arranged in a downward inclined position, such that the side connected to the second spiral conveyor faces downward.

4. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The kitchen waste plastic bag feeding device includes: a first guide plate with an inclined structure, which is disposed in the device body and configured to guide the kitchen waste plastic bag to the crushing shaft; and a second guide plate with an inclined structure, which is disposed in the device body and configured to guide the crushed kitchen waste and plastic to the spiral shaft.

5. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The second screw conveyor and the third screw conveyor each include a bucket screw, which has screw blades arranged perpendicular to the screw and has a certain height along the outer edge of the screw.

6. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The first screw conveyor of the high-concentration kitchen waste conveying device also includes a shredder rotating blade disposed on the screw and a shredder fixed blade disposed near the screw.

7. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The third spiral conveyor of the high-concentration kitchen waste conveying device is configured to control horizontal rotation via a conveyor rotating device including a motor and gears, and to control vertical tilt via a conveyor lifting device including a cylinder.

8. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The low-concentration food waste conveying device includes a pump disposed on the side portion of the food waste storage tank and configured to suck in food waste, and an articulated pipe connected to the discharge side of the pump. The articulated pipe includes a combination of multiple pipes configured to be articulated at various angles in various directions through their respective joint portions and positioned at various heights.

9. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The front end of the first screw conveyor of the high-concentration food waste conveying device and the suction side of the pump of the low-concentration food waste conveying device are connected to each other, such that the food waste conveyed during the reverse drive of the first screw conveyor is supplied to the suction side of the pump.

10. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The rear of the main body food waste storage tank is provided with a door that is opened and closed by a door cylinder to allow the entire rear of the food waste storage tank to be opened during cleaning or inspection operations.

11. The kitchen waste collection and transportation vehicle according to claim 10, characterized in that, The lower inner part of the door is provided with a kitchen waste guide plate with an inclined structure, which is configured to prevent kitchen waste from being pushed to a corner area and accumulating during the conveying of kitchen waste by the first screw conveyor.

12. The kitchen waste collection and transportation vehicle according to claim 1, characterized in that, The lid of the main body food waste storage tank is automatically opened and closed by a cover cylinder.

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