Garbage collection station and collection method

Abstract

The present application relates to a garbage recycling station and a garbage collection method, wherein the garbage can is translated towards the front end to the first position by the lifting and translation mechanism, the garbage can is stably lifted to the set height while avoiding the locking mechanism in the first position, then the second cylinder drives the support rod to rotate to the second position, the positioning shaft enters the clamping groove and then translates the garbage can to the second position, the positioning shaft slides into the clamping groove, and the front end of the garbage can is in contact with the rear end surface of the support frame. The first cylinder drives the frame body to rotate to the second position, during which the positioning shaft is always located in the clamping groove, and the front end of the garbage can is always against the rear end of the support frame, so that the garbage can can stably rotate with the frame body and stably dump garbage. The barrel opening of the rotated garbage can is located below the front end of the barrel bottom, the garbage is dumped into the hopper of the garbage truck parked at the front end of the frame body under the action of gravity, and the garbage collection is highly automated.

Description

Technical Field

[0001] This invention relates to the field of waste collection and transportation technology, and more particularly to waste recycling stations and collection and transportation methods. Background Technology

[0002] Currently, garbage collection stations located in residential areas require staff to push the bins out of the garbage room one by one and place them on the road after they are full, waiting for the garbage truck to arrive before connecting the bins to the tipping mechanism on the truck to complete the garbage collection. This method is labor-intensive and time-consuming. The accumulation of garbage bins on the road before the garbage truck arrives causes odors to spread, and pushing the bins can cause garbage to fall onto the road, polluting the road surface and the community environment.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention discloses a waste recycling station and a waste collection method to solve the problems of time-consuming and labor-intensive manual movement of waste bins and their connection to garbage trucks, which can easily lead to secondary pollution of the community environment.

[0005] The technical solution adopted in this invention is as follows: A waste recycling station includes a housing, waste bins, and a lifting and translating mechanism. The housing is a hollow structure, situated on the ground. Positioning shafts are located on both sides of the waste bins. The lifting and translating mechanism is located at the front end of the housing. A front panel and a flipping mechanism are located at the front end of the housing. The flipping mechanism includes a frame and a first cylinder. The frame is rotatably mounted on the upper part of the front panel. The first end of the first cylinder is hinged to the front end of the frame, and the second end is hinged to the front end of the front panel. At least one locking mechanism is provided within the frame. The locking mechanism includes two vertical rods within the frame, with support rods rotatably mounted on opposite sides of the two vertical rods. The locking mechanism also includes a second cylinder, with the first end hinged to the bottom of the inner side of the frame. The rear end of the support rod is hinged to the side away from the vertical rod, and a slot is opened at the rear end of the support rod. Support frames are also provided at the rear ends of the two vertical rods. The garbage truck is parked at the front end of the housing. The lifting and translating mechanism moves the garbage can towards the front end to a first position and raises it to a set height. The second end of the second cylinder extends and drives the support rod to rotate from the first position to a second position. The lifting and translating mechanism moves the garbage can towards the front end to the second position, so that the positioning shafts on both sides of the garbage can slide into the slots respectively. At the same time, the front end of the garbage can contacts the rear end face of the support frame. The second end of the first cylinder retracts and drives the frame to rotate to the second position. The opening of the garbage can is located below the front end of the bottom of the can and dumps garbage into the hopper of the garbage truck.

[0006] A further technical solution is that the slot includes a first slot at the rear end of the support rod and a second slot at the front end of the first slot. The lower ends of the first slot and the second slot are connected. The first slot is horizontally arranged, and the second slot is vertically arranged. The support frame is a semi-frame with its opening facing the front end. The front end has a connecting plate bent towards the center line of the support frame. The connecting plate is fixedly connected to the rear end of the vertical rod. The flipping mechanism also includes a guide plate. The guide plate is fixed to the rear end of the two vertical rods and is coaxially arranged with the support frame. The width of the guide plate is not less than the width of the trash can. The lower end of the guide plate is not higher than the upper end of the trash can. The upper end of the guide plate extends to the upper end of the frame.

[0007] A further technical solution is that the flipping mechanism further includes a fixed frame and a proximity switch. The fixed frame is disposed on the inner rear end of the support frame, and the proximity switch is fixed on the fixed frame. The rear end of the proximity switch has a rotatable swing arm that extends out of the rear end of the support frame. The front end of the trash can contacts the rear end face of the support frame. The swing arm is squeezed by the trash can and rotates to a second position, triggering the proximity switch.

[0008] A further technical solution is that the lifting and translating mechanism includes a scissor lift and a first translating mechanism, the lower end of the scissor lift is embedded in the ground, and the first translating mechanism is disposed on the platform of the scissor lift.

[0009] A further technical solution is that a set of lifting and translating mechanisms is provided at the inner rear end of the building; the garbage recycling station also includes at least two supports, which are vertically set on the ground inside the building, located between the two sets of lifting and translating mechanisms, and parallel to the first translating mechanism. A second translating mechanism is horizontally set at the lower end between the two supports, and the height of the second translating mechanism corresponds to the height of the first translating mechanism when it is not raised. A third translating mechanism is horizontally set at the upper end between the two supports, and the height of the third translating mechanism corresponds to the height of the first translating mechanism after it is raised.

[0010] A further technical solution is that the first translation mechanism includes two vertically arranged side plates, a horizontally arranged support plate between the two side plates, and a rotating shaft rotatably arranged at both ends between the two side plates. Pulleys are fixedly sleeved on the outer sides of the two rotating shafts, and a conveyor belt is sleeved on the outer sides of the two pulleys. The support plate is supported on the upper inner side of the conveyor belt, and a motor is arranged on the side of the side plate. The output end of the motor is connected to the rotating shaft.

[0011] A further technical solution is that a first weighing mechanism is provided at the rear end of the support frame, and the first weighing mechanism is arranged parallel to the support frame; a second weighing mechanism is provided between the first translation mechanism and the scissor lift, and the second weighing mechanism is arranged parallel to the first translation mechanism.

[0012] A further technical solution is as follows: the first weighing mechanism includes a first support portion disposed at the rear end of the support frame and first weighing sensors disposed at the four corners of the rear end of the support frame. The first support portion can slide relative to the support frame in a direction perpendicular to the support frame. The first support portion is squeezed by the garbage can and supported on the four first weighing sensors. The second weighing mechanism includes a support disposed at the upper end of the scissor lift platform, a second support portion disposed at the upper end of the support, and four second weighing sensors. The positions of the second weighing sensors correspond to the four corners of the lower end of the first translation mechanism. The second support portion can slide relative to the platform in a direction perpendicular to the platform. The second support portion is supported on the four second weighing sensors. The garbage recycling station also includes a controller, which is electrically connected to the scissor lift, the first translation mechanism, the first cylinder, the second cylinder, the first weighing sensor, and the second weighing sensor.

[0013] The aforementioned waste collection and transportation method for waste recycling stations includes the following steps: Step S1: The lifting and translating mechanism moves the trash can towards the front end to the first position, and then lifts the trash can to the set height; In step S2, the second end of the second cylinder extends, driving the support rod to rotate from the first position to the second position. At this time, the positioning shaft of the trash can enters the slot, and the lifting and translating mechanism moves the trash can towards the front end to the second position, so that the positioning shaft slides into the slot, and at the same time, the front end of the trash can abuts against the rear end of the support frame. In step S3, the second end of the first cylinder retracts, driving the frame to rotate from the first position to the second position. The frame drives the support rod, support frame and garbage can to rotate together. At this time, the opening of the garbage can is located below the front end of the bottom of the can and dumps garbage into the hopper of the garbage truck.

[0014] A further technical solution is that the cleaning method further includes the following steps: Step S31: Enter the set weight range when the trash can is empty; Step S32: After the trash can is emptied, the first cylinder drives the frame to rotate to a horizontal position, and the first weighing mechanism weighs the first weight data. At this time, the positioning shaft of the trash can is not supported at the lower end of the second groove, and the center of gravity of the trash can is located above the first weighing mechanism. The first weight data is the weight of the trash can at this time. Step S33: Make a judgment to determine whether the first weight data is within the set weight range; when the first weight data is within the set weight range or less than the minimum value of the set weight range, determine that the trash can is emptied cleanly and jump to step S4; when the first weight data is greater than the maximum value of the set weight range, determine that the trash can is not emptied cleanly, the second end of the first cylinder retracts, and the drive frame rotates from the horizontal position back to the second position. In step S4, the second end of the first cylinder extends, driving the frame to rotate to the first position.

[0015] Step S41: The second weighing mechanism weighs the second weight data. At this time, the positioning shaft of the trash can is not supported at the lower end of the second groove. The second weight data is the weight of the trash can at this time. Step S42, secondary judgment: determine whether the second weight data is within the set weight range; when the second weight data is within the set weight range and the first weight data is also within the set weight range, the trash can is judged to be normal; when the second weight data is less than the minimum value of the set weight range and the first weight data is also less than the minimum value of the set weight range, the trash can is judged to be damaged; when either the second weight data or the first weight data is less than the minimum value of the set weight range, while the other is within the set weight range, the weighing mechanism is judged to be abnormal.

[0016] The beneficial effects of the embodiments of the present invention are as follows: (i) The garbage recycling station of this invention moves the garbage bin to the first position by means of a lifting and translating mechanism, so that the garbage bin is stably raised to a set height while avoiding the locking mechanism in the first position. Then, the second cylinder is activated, and the second cylinder drives the support rod to rotate to the second position. After the positioning shaft slides into the slot, the garbage bin is moved to the second position, so that the positioning shaft slides into the bottom of the slot, and at the same time, the front end of the garbage bin contacts the rear end face of the support frame. The first cylinder is activated, driving the frame to rotate to the second position. The positioning shaft abuts against the front end of the slot, and the trash can remains against the support frame, allowing the trash can to rotate stably with the frame and to dump trash stably. After rotation, the opening of the trash can is located below the front end of the bottom of the can. Under the action of gravity, the trash is dumped into the hopper of the garbage truck parked at the front of the building. This avoids the need for manual movement of the trash can and manual docking between the trash can and the garbage truck, resulting in a high degree of automation in garbage collection. At the same time, after the trash can is tilted into place by the tilting mechanism, it falls directly into the garbage truck, reducing the probability of polluting the road surface and the community environment, minimizing odor leakage, and ensuring the environmental hygiene of the residential area.

[0017] (ii) Furthermore, by adopting the collection method of this application, the garbage bins circulate between the lifting and translating mechanism at the front end of the inner side of the chamber, the third translating mechanism, the lifting and translating mechanism at the rear end of the inner side of the chamber, and the second translating mechanism. Several full garbage bins can be automatically emptied one by one by the tipping mechanism when passing the lifting and translating mechanism at the front end of the inner side of the chamber. When not emptying the garbage, the full garbage bins can also be removed and replaced with empty ones, reducing the manual process of changing garbage bins, improving the utilization rate of the garbage bins, and further enhancing the automation level of the garbage recycling station.

[0018] (III) Furthermore, by adding a first weighing mechanism at the rear end of the support frame, after the trash can is tilted to a horizontal position, the first weighing mechanism weighs the trash can to determine if it is empty. If it is empty, the tilting mechanism returns to its original position; if it is not empty, the trash can is returned to the tilting position for a second tilting, preventing trash from getting stuck inside and rotting, ensuring the trash can is completely emptied. The horizontal position and tilting position of the trash can are close together, allowing for detection during the tilting phase, eliminating the need to wait for the vertical lifting phase. Each weighing also eliminates the need to calculate the force generated by the tilting of the trash can, resulting in faster detection and cleaning. The tilting position is also close to the ground, allowing for manual cleaning if the trash can cannot be automatically emptied, making it convenient to use.

[0019] By setting a second weighing mechanism between the scissor lift and the first translation mechanism, the garbage can can be weighed before dumping to confirm the weight of the garbage. At the same time, in conjunction with the first weighing mechanism, the weight of the empty garbage can is weighed twice and compared with the weight of the empty garbage can in its intact state to determine whether the garbage can body is intact and whether the first and second weighing mechanisms themselves are abnormal.

[0020] (iv) Furthermore, the waste recycling station and collection method of this application have good versatility and can simultaneously realize automatic dumping of waste bins, rotation of empty waste bins, waste weight detection, waste bin emptying detection, waste bin status detection, and self-inspection of the weighing mechanism. Attached Figure Description

[0021] Figure 1 This is a side view of the waste recycling station of the present invention.

[0022] Figure 2 This is a partial side view of the garbage bin in the garbage recycling station of the present invention when it is raised to a set height in the first position.

[0023] Figure 3 This is a partial side view of the flipping mechanism and locking mechanism in the waste recycling station of the present invention, in which the flipping mechanism and locking mechanism are in the first position.

[0024] Figure 4 This is a rear view of the structure of the waste recycling station of the present invention when the lifting and translating mechanism is in the raised state and the flipping mechanism and locking mechanism are in the first position.

[0025] Figure 5 This is a partial side view of the tipping mechanism and locking mechanism in the waste recycling station of the present invention. At this time, the waste bin is in the first position and the locking mechanism is in the second position.

[0026] Figure 6 This is a partial side view of the tipping mechanism and locking mechanism in the waste recycling station of the present invention. At this time, the waste bin is in the second position and the locking mechanism is in the second position.

[0027] Figure 7 This is an isometric view of the garbage recycling station of the present invention with the lifting and translation mechanism in the raised state, the flipping mechanism in the first position, and the locking mechanism in the second position.

[0028] Figure 8 This is a partial side view of the flipping mechanism and locking mechanism in the waste recycling station of the present invention, in which the flipping mechanism and locking mechanism are in the second position.

[0029] Figure 9 This is a top view schematic diagram of the first and second translation mechanisms in the waste recycling station of the present invention.

[0030] Figure 10 This is a partial side view of the tipping mechanism and locking mechanism in the waste recycling station according to the third embodiment of the present invention. At this time, the waste bin is in the second position and the locking mechanism is in the second position.

[0031] Figure 11This is a partial side view of the tipping mechanism and locking mechanism in the waste recycling station according to the third embodiment of the present invention. At this time, the waste bin and the tipping mechanism are in a horizontal position.

[0032] Figure 12 for Figure 11 Enlarged view at point A.

[0033] Figure 13 This is a side view of the first weighing mechanism and the first translation mechanism in the waste recycling station according to the third embodiment of the present invention.

[0034] Figure 14 This is a connection diagram of the waste recycling station of the present invention.

[0035] In the picture: 1. Body; 11. Front panel; 12. Sliding door; 13. Distance sensor; 2. Lifting and translating mechanism; 21. Scissor lift; 22. First translating mechanism; 221. Side plate; 222. Support plate; 223. Rotating shaft; 224. Pulley; 225. Conveyor belt; 226. Motor; 23. Second weighing mechanism; 231. Support; 232. Second support part; 233. Second weighing sensor; 234. Second cylinder; 235. Second slide rod; 3. Tilting mechanism; 31. Frame; 311. Shaft fork; 32. Vertical rod; 33. First cylinder; 34. Guide plate; 35. Support frame; 35 1. Connecting plate; 36. Fixing frame; 37. Proximity switch; 38. First weighing mechanism; 381. First support part; 382. First weighing sensor; 383. First cylinder; 384. First slide rod; 4. Locking mechanism; 41. Support rod; 411. First shaft; 42. Second cylinder; 421. Second shaft; 422. Third shaft; 43. Slot; 431. First slot; 432. Second slot; 5. Bracket; 6. Second translation mechanism; 61. Guide plate; 7. Third translation mechanism; 8. Garbage bin; 81. Positioning shaft; 9. Garbage truck; 91. Hopper; 10. Controller. Detailed Implementation

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0037] First embodiment: This embodiment discloses a waste recycling station.

[0038] like Figure 1 As shown, the waste recycling station includes a building 1, waste bins 8, and a lifting and translating mechanism 2.

[0039] The housing 1 is a hollow structure, set on the ground. Positioning shafts 81 are installed on both sides of the trash can 8, and a lifting and translating mechanism 2 is located at the front inner side of the housing 1. For example, the front end is the side of the housing 1 closest to the resident's trash disposal area, and the rear end is the side of the housing 1 furthest from the resident's trash disposal area. The housing 1 is a rectangular frame structure. The trash can 8 has a rectangular shape with a flat bottom.

[0040] like Figure 1 and Figure 2 As shown, a front panel 11 and a flipping mechanism 3 are provided at the front end of the housing 1. The flipping mechanism 3 includes a frame 31 and a first cylinder 33. The frame 31 is square and rotatably mounted on the upper end of the front panel 11. The first end of the first cylinder 33 is hinged to the front end of the frame 31, and the second end is hinged to the front end of the front panel 11. For example, the frame 31 and the front panel 11 are connected by a hinge. When the frame 31 is in the first position, both the frame 31 and the front panel 11 are vertical, and the frame 31 sits on the upper end of the front panel 11.

[0041] like Figure 3 and Figure 4 As shown, two sets of locking mechanisms 4 are provided inside the frame 31. The following description focuses on the locking mechanism 4 in its first position. The locking mechanism 4 includes two vertical rods 32 disposed inside the frame 31. Support rods 41 are rotatably disposed on opposite sides of the two vertical rods 32. The locking mechanism 4 also includes a second cylinder 42. The first end of the second cylinder 42 is hinged to the bottom inner side of the frame 31, and the second end is hinged to the rear end of the support rod 41 on the side away from the vertical rods 32. When the support rod 41 is in the first position, it is vertical. A slot 43 is provided at the rear end of the support rod 41, and support frames 35 are also provided at the rear ends of the two vertical rods 32.

[0042] For example, a rear-loading garbage truck 9 can typically tilt two garbage bins 8 simultaneously, therefore two locking mechanisms 4 are provided inside the frame 31. The upper end of the support rod 41 is connected to the opposite side of the two vertical rods 32 via a first shaft 411. The first end of the second cylinder 42 is connected to the axle fork 311 at the bottom inner side of the frame 31 via a second shaft 421, and the second end of the second cylinder 42 is connected to the side of the support rod 41 away from the vertical rods 32 via a third shaft 422. The axes of the first shaft 411 and the second shaft 421 are in the same vertical plane, and the axis of the third shaft 422 is located at the rear end of the axis of the second shaft 421, providing an inclination angle for the second cylinder 42 to drive the support rod 41 to rotate. The support frame 35 is a half-frame 31 with an opening facing the front end, and the front end has a connecting plate 351 bent towards the centerline of the support frame 35. The connecting plate 351 is fixedly connected to the rear end of the vertical rods 32. In other embodiments of the invention, the support frame 35 can also be welded to the two vertical rods 32. Preferably, there are two support frames 35, which are located at the upper and lower ends of the side of the trash can 8, respectively. The rear end face of the support frame 35 contacts and cooperates with the front end face of the trash can 8, which can reduce the center of gravity shift caused by the movement of trash during the process of dumping trash can 8 and prevent the trash can 8 from falling off the slot 43, thus ensuring the efficiency of collection.

[0043] like Figures 2-4 As shown, the lifting and translating mechanism 2 moves the trash can 8 towards the front end to the first position and lifts it to the set height. Figures 5-7 As shown, the second end of the second cylinder 42 extends and drives the support rod 41 to rotate from the first position to the second position. The lifting and translating mechanism 2 translates the trash can 8 towards the front end to the second position, so that the positioning shafts 81 on both sides of the trash can 8 slide into the slots 43 respectively, and at the same time, the front end of the trash can 8 contacts the rear end face of the support frame 35. Figure 8 As shown, the garbage truck 9 is parked at the front end of the housing 1. The second end of the first cylinder 33 retracts and drives the frame 31 to rotate to the second position. The opening of the garbage can 8 is located below the front end of the bottom of the can and dumps garbage into the hopper 91 of the garbage truck 9.

[0044] like Figure 2 and Figure 3 As shown, for example, the slot 43 includes a first slot 431 formed at the rear end of the support rod 41 and a second slot 432 formed at the front end of the first slot 431, with the lower ends of the first slot 431 and the second slot 432 connected. Figure 5 As shown, when the support rod 41 rotates to the second position, the support rod 41 is in a horizontal state. At this time, the positioning shaft 81 enters the bottom of the first groove 431 from the top, but does not contact the bottom edge. Figure 6 As shown, the trash can 8 is moved to the second position, and the positioning shaft 81 slides from the first groove 431 into the second groove 432. Figure 8As shown, the frame 31 rotates to the second position, and the angle between the frame 31 and the garbage bin 8 and the horizontal plane is a negative angle, preferably -45°. The positioning shaft 81 of the garbage bin 8 is always located within the second groove 432. The garbage truck 9 can be a rear-loading garbage truck 9 or a top-loading garbage truck 9, with a hopper 91 at its rear or top. The hopper 91 can be aligned with the upper end of the rotated frame by adjusting the parking position.

[0045] like Figure 4 and Figure 7 As shown, exemplarily, the lifting and translating mechanism 2 includes a scissor lift 21 and a first translating mechanism 22. The lower end of the scissor lift 21 is embedded in the ground, and the first translating mechanism 22 is disposed on the platform of the scissor lift 21. Specifically, the lifting height of the scissor lift 21, the platform length, and the number of first translating mechanisms 22 can be adjusted and customized according to requirements. The first translating mechanism 22 includes two vertically arranged side plates 221, which are arranged along the front-back direction. A support plate 222 is horizontally arranged between the two side plates 221. Rotary shafts 223 are rotatably arranged at both ends between the two side plates 221. Pulleys 224 are fixedly sleeved on the outer sides of the two rotating shafts 223, and a conveyor belt 225 is sleeved on the outer sides of the two pulleys 224. The support plate 222 is supported on the upper inner side of the conveyor belt 225. A motor 226 is arranged on the side of the side plate 221, and the output end of the motor 226 is connected to the rotating shaft 223.

[0046] like Figure 1 As shown, a sliding door 12 is rotatably mounted on the upper part of the front panel 11, making it convenient for residents to push open the door 12 to dispose of garbage. A distance sensor 13 is also provided at the rear end of the front panel 11. The distance sensor 13 detects whether the garbage bin 8 has moved to the first position and controls the lifting and translating mechanism 2 to lift it. The first position ensures that the garbage bin 8 does not interfere with the support rod 41 and the support frame 35 during the lifting process.

[0047] like Figure 2 , 3 As shown in Figures 5 and 6, the flipping mechanism 3 further includes a fixed frame 36 and a proximity switch 37. The fixed frame 36 is located at the rear end of the inner side of the support frame 35, and the proximity switch 37 is fixed to the fixed frame 36. The rear end of the proximity switch 37 has a rotatable swing arm that extends out of the rear end of the support frame 35. The front end of the trash can 8 contacts the rear end face of the support frame 35. The swing arm is squeezed by the trash can 8 and rotates to the second position, triggering the proximity switch 37. The proximity switch 37 detects whether the trash can 8 has moved to the second position and controls the first cylinder 33 to start. The force required to trigger the swing arm is less than the static friction between the empty trash can 8 and the conveyor belt 225, ensuring that the trash can 8 can trigger the proximity switch 37 when it is moved into position.

[0048] like Figure 2 , 3As shown in Figures 7 and 8, the tipping mechanism 3 further includes a guide plate 34. The guide plate 34 is fixed to the rear end of the two vertical rods 32 and is coaxially arranged with the support frame 35. The width of the guide plate 34 is not less than the width of the garbage bin 8, the lower end of the guide plate 34 is not higher than the upper end of the garbage bin 8, and the upper end of the guide plate 34 extends to the upper end of the frame 31. To avoid interference between the garbage bin 8 and the top of the housing 1 when tipping over, the height of the frame 31 needs to be higher than the garbage bin 8, and a layer of sheet metal needs to be fixed to the front end of the frame 31 to ensure a neat and beautiful appearance. This prevents the garbage from getting stuck in the gap between the vertical rods 32 when the garbage bin 8 is dumped. By setting the guide plate 34, when the garbage bin 8 is dumped, the garbage slides along the guide plate 34 into the hopper 91 of the garbage truck 9, ensuring the stability of the collection process. Preferably, baffles can also be added to both sides of the guide plate 34 to prevent garbage from leaking out from the sides. The baffles on both sides of the rear scraper mechanism of the rear-loading garbage truck 9 can also prevent garbage from leaking out from the sides.

[0049] like Figure 1 and Figure 9 As shown, furthermore, a set of lifting and translating mechanisms 2 is also provided at the inner rear end of the housing 1. The garbage recycling station also includes at least two supports 5, which are vertically set on the ground inside the housing 1, located between the two sets of lifting and translating mechanisms 2, and parallel to the first translating mechanism 22. A second translating mechanism 6 is horizontally set at the lower end between the two supports 5, and the height of the second translating mechanism 6 corresponds to the height of the first translating mechanism 22 when it is not raised. A third translating mechanism 7 is horizontally set at the upper end between the two supports 5, and the height of the third translating mechanism 7 corresponds to the height of the first translating mechanism 22 after it is raised.

[0050] For example, the structures of the second translation mechanism 6 and the third translation mechanism 7 are largely the same as those of the first translation mechanism 22, with two supports 5 serving as side plates 221 for the second translation mechanism 6 and the third translation mechanism 7. A small gap needs to be maintained between the conveyor belts 225 of the second translation mechanism 6 and the third translation mechanism 7 and the conveyor belt 225 of the first translation mechanism 22 to ensure that the trash can 8 can be stably transported between different conveyor belts 225. Preferably, a guide plate 61 is also provided at the upper end between the two side plates 221. The guide plate 61 includes a straight segment parallel to the support 5 and an inclined segment connected to the rear end of the straight segment. The rear end of the inclined segment is located on the side away from the centerline of the conveyor belt 225. The guide plate 61 guides and restricts the left and right positions of the trash can 8, ensuring that the support rod 41 can rotate to both sides of the trash can 8. When the lifting and translation mechanism 2 is a combination of the scissor lift 21 and the first translation mechanism 22, the front and rear ends of the second translation mechanism 6 are flush with the front and rear ends of the third translation mechanism 7.

[0051] In this embodiment, the garbage bin 8 is moved to the first position by the lifting and translating mechanism 2, so that the garbage bin 8 is stably raised to the set height while avoiding the locking mechanism 4 in the first position. Then, the second cylinder 42 is activated, and the second cylinder 42 drives the support rod 41 to rotate to the second position. After the positioning shaft 81 enters the slot 43, the garbage bin 8 is moved to the second position, so that the positioning shaft 81 slides into the bottom of the slot 43. At the same time, the front end of the garbage bin 8 contacts the rear end face of the support frame 35. The first cylinder 33 is activated, driving the frame 31 to rotate to the second position. The positioning shaft 81 abuts against the front end of the slot 43, and the garbage can 8 always abuts against the support frame 35, so that the garbage can 8 can rotate stably with the frame 31 and dump garbage stably. After rotation, the opening of the garbage can 8 is located below the front end of the bottom of the can. Under the action of gravity, the garbage is dumped into the hopper 91 of the garbage truck 9 parked at the front end of the building 1. This avoids the need for manual movement of the garbage can 8 and manual docking of the garbage can 8 and the garbage truck 9. The degree of automation of garbage collection is high. At the same time, after the garbage is flipped into place by the tipping mechanism 3 and the garbage can 8, it falls directly into the garbage truck 9, which reduces the probability of polluting the road surface and community environment, minimizes odor leakage, and ensures the environmental hygiene of the residential area.

[0052] Second embodiment: This embodiment discloses a waste collection method for a waste recycling station using the first embodiment.

[0053] The removal method includes the following steps: Step S1: The lifting and translating mechanism 2 moves the trash can 8 to the first position in the front direction, and then lifts the trash can 8 to the set height.

[0054] like Figure 1 and Figure 2 As shown, specifically, in the lifting and translating mechanism 2, the motor 226 of the first translating mechanism 22 drives the rotating shaft 223 to rotate. The rotating shaft 223 drives the pulley 224 and the conveyor belt 225 to rotate clockwise, and the conveyor belt 225 drives the trash can 8 to move forward. The distance sensor 13 at the rear end of the front panel 11 detects that the trash can 8 has moved to the first position and controls the scissor lift 21 in the lifting and translating mechanism 2 to lift.

[0055] In step S2, the second end of the second cylinder 42 extends, driving the support rod 41 to rotate from the first position to the second position. At this time, the positioning shaft 81 of the trash can 8 slides into the slot 43, and the lifting and translating mechanism 2 moves the trash can 8 towards the front end to the second position, so that the positioning shaft 81 slides into the bottom of the slot 43, while the front end of the trash can 8 abuts against the rear end of the support frame 35.

[0056] like Figure 5 and Figure 6As shown, specifically, the support rod 41 rotates to the second position, at which point the positioning shaft 81 enters the first groove 431 from the top. The conveyor belt 225 drives the trash can 8 to move forward again, and the positioning shaft 81 enters the second groove 432. At the same time, the front face of the trash can 8 abuts against the rear face of the support frame 35, and the front face of the trash can 8 also pushes the swing arm to rotate and triggers the proximity switch 37.

[0057] In step S3, the second end of the first cylinder 33 retracts, driving the frame 31 to rotate from the first position to the second position. The frame 31 drives the support rod 41, the support frame 35 and the garbage can 8 to rotate together. At this time, the opening of the garbage can 8 is located below the front end of the bottom of the can and dumps garbage into the hopper 91 of the garbage truck 9.

[0058] like Figure 8 As shown, specifically, after the proximity switch 37 detects that the trash can 8 has moved to the second position, it controls the second end of the first cylinder 33 to retract. When the frame 31 rotates to the second position, the frame 31 and the trash can 8 are at a negative angle to the horizontal plane. At this time, the lower end of the trash can 8 is supported on the support frame 35, and the positioning shaft 81 abuts against the front end of the second groove 432. Under the action of gravity, the garbage is poured from the trash can 8 along the guide plate 34 into the hopper 91 of the garbage truck 9.

[0059] Furthermore, the removal method also includes the following steps: In step S4, the second end of the first cylinder 33 extends, driving the frame 31 to rotate to the first position.

[0060] In step S5, the lifting and translating mechanism 2 moves the trash can 8 to the first position towards the rear, causing the positioning shaft 81 to disengage from the slot 43, and at the same time, the front end of the trash can 8 disengages from the support frame 35. The second end of the second cylinder 42 retracts, driving the support rod 41 to rotate from the second position to the first position, at which point the positioning shaft 81 of the trash can 8 disengages from the slot 43.

[0061] like Figure 1 and Figure 2 As shown, specifically, the conveyor belt 225 moves the trash can 8 backward, and the positioning shaft 81 moves out of the second groove 432 and re-enters the first groove 431. The support rod 41 rotates to the first position, and the positioning shaft 81 disengages from the first groove 431.

[0062] In step S6, the two lifting and translating mechanisms 2 and the third translating mechanism 7 simultaneously move the trash can 8 towards the rear end, so that the last trash can 8 moves to the lifting and translating mechanism 2 located at the rear end of the inner side of the body 1, and the two lifting and translating mechanisms 2 descend simultaneously.

[0063] Specifically, there are several trash cans 8. The trash cans 8 located on the upper layer move backward simultaneously, so that the last trash can 8 moves to the first translation mechanism 22 located at the rear end of the inner side of the housing 1, and the first translation mechanism 22 located at the front end of the inner side of the housing 1 vacates a position.

[0064] In step S7, the two lifting and translating mechanisms 2 and the second translating mechanism 6 simultaneously move the front trash can 8 towards the front, so that the frontmost trash can 8 moves onto the lifting and translating mechanism 2 located at the front of the inner side of the body 1.

[0065] Specifically, the trash cans 8 located on the lower level move forward simultaneously, so that the frontmost trash can 8 moves to the first translation mechanism 22 located at the front of the inner side of the housing 1, and vacates a position on the first translation mechanism 22 located at the rear of the inner side of the housing 1.

[0066] Repeat steps S1 to S7, with the two lifting and translating mechanisms always lifting and lowering together.

[0067] In this embodiment, by employing the waste collection method of this application, the garbage bins 8 circulate between the lifting and translating mechanism 2 at the front end of the inner side of the housing 1, the third translating mechanism 7, the lifting and translating mechanism 2 at the rear end of the inner side of the housing 1, and the second translating mechanism 6. Several full garbage bins 8 are automatically emptied one by one by the flipping mechanism 3 as they pass the lifting and translating mechanism 2 at the front end of the inner side of the housing 1. When not emptying the garbage, the full garbage bins 8 can also be removed and replaced with empty garbage bins 8, reducing the manual process of changing the garbage bins 8, improving the utilization rate of the garbage bins 8, and further enhancing the automation level of the waste recycling station.

[0068] Third embodiment: Based on the first and second embodiments, the third embodiment further optimizes and refines the waste recycling station.

[0069] Traditional garbage trucks use lifting and tipping mechanisms that require the garbage bin to be lowered to its initial position before weighing, or weighing on the gripper of the bin. When using the latter method, the garbage bin is not vertical when suspended, and the weight of the garbage bin cannot be fully placed on the weighing mechanism, so the actual weight of the garbage bin cannot be obtained directly.

[0070] like Figure 10 and Figure 13As shown, a first weighing mechanism 38 is provided at the rear end of the support frame 35, and the first weighing mechanism 38 is parallel to the support frame 35. For example, the description is based on the frame 31 being in the first position. The first weighing mechanism 38 includes a first support portion 381 disposed at the rear end of the support frame 35 and first weighing sensors 382 disposed at the four corners of the rear end of the support frame 35. The first support portion 381 is vertically disposed and can slide relative to the support frame 35 in a direction perpendicular to the support frame 35. The first support portion 381 is pressed by the trash can 8 and supported on the four first weighing sensors 382. After the first weighing mechanism 38 is installed, it can replace the function of the proximity switch 37. When the trash can 8 is moved to the second position, its front end contacts the rear end face of the first support portion 381. The first weighing sensors 382 detect the pressure and control the first cylinder 33 to start. The pressure change value required for the first weighing sensor 382 to trigger exceeds the static friction between the empty trash can 8 and the conveyor belt 225, ensuring that the first weighing mechanism 38 can be triggered when the trash can 8 is moved into position. Specifically, the first weighing mechanism 38 also includes four first cylinders 383 and four first slide rods 384. The first cylinders 383 and the first slide rods 384 are horizontally arranged. The four first cylinders 383 are square and fixed to the inner front end of the support frame 35, and their positions are aligned with the vertical rod 32. The first slide rods 384 are fixed to the rear end of the first support part 381 and pass through the corresponding first cylinders 383 to ensure that the first support part 381 can move smoothly during weighing. A limiting plate is also provided at the front end of the first slide rod 384. The outer diameter of the limiting plate is larger than the outer diameter of the first slide rod 384. The limiting plate and the vertical rod 32 together limit the forward and backward movement range of the first support part 381 to protect the first weighing sensor 382.

[0071] like Figures 10-12As shown, a second weighing mechanism 23 is disposed between the first translation mechanism 22 and the scissor lift 21. Exemplarily, the second weighing mechanism 23 includes a support 231 disposed on the upper end of the scissor lift 21 platform, a second support portion 232 disposed on the upper end of the support 231, and four second weighing sensors 233. The support 231 and the second support portion 232 are horizontally disposed. The positions of the second weighing sensors 233 correspond to the four lower corners of the first translation mechanism 22. The second support portion 232 can slide relative to the platform in a direction perpendicular to the platform, and the second support portion 232 is supported on the four second weighing sensors 233. Specifically, the second support portion 232 is frame-shaped. The second weighing mechanism 23 also includes four second cylinders 234 and four second slide rods 235. The second cylinders 234 and the second slide rods 235 are vertically arranged. The four second cylinders 234 are square and fixed to the upper end of the support 231. The second slide rods 235 are fixed to the upper end of the second cylinders 234 and pass through the second support part 232 to ensure that the second support part 232 can move smoothly during weighing. A limiting plate is also provided at the upper end of the second slide rod 235. The outer diameter of the limiting plate is larger than the outer diameter of the second slide rod 235. The limiting plate and the second cylinders 234 together limit the vertical movement range of the second support part 232 to protect the second weighing sensor 233.

[0072] like Figure 14 As shown, the waste recycling station also includes a controller 10, which is electrically connected to the scissor lift 21, the first translation mechanism 22, the distance sensor 13, the first cylinder 33, the second cylinder 42, the first weighing sensor 382, ​​and the second weighing sensor 233. In this application, "electrical connection" refers to the connection between different components in a circuit via physical lines capable of transmitting electrical signals, such as PCB copper foil or wires. The controller 10 receives signals from the distance sensor 13 and controls the lifting and lowering of the scissor lift 21, the transmission of the first translation mechanism 22, and the extension and retraction of the second cylinder 42. It also receives detection signals from the first weighing sensor 382 and the second weighing sensor 233 and controls the extension and retraction of the first cylinder 33. The controller 10 can be a commercially available PLC controller, and the control method is existing technology.

[0073] Correspondingly, the cleaning method also includes the following steps: Step S31: Enter the set weight range when trash can 8 is empty.

[0074] Specifically, the upper limit is determined by weighing the empty trash can 8 in good condition, and the lower limit is determined by calculating the gravitational component caused by the tilting of the frame 31 due to shaking or deformation when it is rotated to a horizontal position.

[0075] In step S32, after the trash can 8 is emptied, when the first cylinder 33 drives the frame 31 to rotate to a horizontal position, the first weighing mechanism 38 weighs the first weight data.

[0076] like Figure 11 and Figure 12 As shown, specifically, the first weighing mechanism 38 is zeroed when it is in a horizontal state and no trash can 8 is placed there, in order to remove the weight of the components of the first weighing mechanism 38 itself. At this time, the weight of the trash can 8 is vertically downward, and the positioning shaft 81 of the trash can 8 is not supported at the lower end of the second groove 432. The weight of the trash can 8 falls entirely on the first weighing mechanism 38, and the center of gravity of the trash can 8 is located above the first weighing mechanism 38. The first weight data is the weight of the trash can 8 at this time.

[0077] Step S33: A judgment is made to determine whether the first weight data is within the set weight range. If the first weight data is within the set weight range or less than the minimum value of the set weight range, it is determined that the trash can 8 is emptied cleanly, and the process proceeds to step S4. If the first weight data is greater than the maximum value of the set weight range, it is determined that the trash can 8 is not emptied cleanly, the second end of the first cylinder 33 retracts, and the drive frame 31 rotates from the horizontal position back to the second position.

[0078] Preferably, a vision camera is also installed on the top inner side of the garbage truck 9. When the frame 31 rotates to a horizontal position, the vision camera takes a picture of the inside of the garbage bin 8. If the first weight data is greater than the maximum value of the set weight range, and the vision camera detects garbage inside the garbage bin 8, it is determined that the garbage bin 8 has not been emptied completely. The second end of the first cylinder 33 retracts, driving the frame 31 to rotate back from the horizontal position to the second position. If the first weight data is greater than the maximum value of the set weight range, and the vision camera detects that there is no garbage inside the garbage bin 8, it is determined that the first weighing mechanism 38 is abnormal.

[0079] In step S4, the second end of the first cylinder 33 extends, driving the frame 31 to rotate from the horizontal position to the first position.

[0080] Specifically, frame 31 rotates from the horizontal position to the first position.

[0081] Step S41: The second weighing mechanism 23 weighs the second weight data.

[0082] like Figure 10 and Figure 13 As shown, specifically, the second weighing mechanism 23 is zeroed when the trash can 8 is not placed, in order to remove the weight of the first translation mechanism 22 and the second weighing mechanism 23 themselves. At this time, the weight of the trash can 8 is vertically downward, and the positioning shaft 81 of the trash can 8 is not supported at the lower end of the second groove 432. The weight of the trash can 8 falls entirely on the second weighing mechanism 23, and the second weight data is the weight of the trash can 8 at this time.

[0083] Step S42: Secondary judgment to determine if the second weight data is within the set weight range. If both the second and first weight data are within the set weight range, the trash can 8 is determined to be normal. If both the second and first weight data are less than the minimum value of the set weight range, the trash can 8 is determined to be damaged. If either the second or first weight data is less than the minimum value of the set weight range, while the other is within the set weight range, the weighing mechanism is determined to be malfunctioning.

[0084] In this embodiment, a first weighing mechanism 38 is added to the rear end of the support frame 35. After the trash can 8 is emptied, it rotates to a horizontal position and the first weighing mechanism 38 weighs it to determine whether the trash can 8 is empty. If it is empty, the flipping mechanism 3 returns to its original position. If it is not empty, the trash can 8 is returned to the tilting position for a second emptying, preventing trash from getting stuck inside the trash can 8 and rotting and smelling bad, ensuring that the trash can 8 is completely emptied. Furthermore, the horizontal position and the tilting position of the trash can 8 are close together, allowing for detection during the tilting stage without waiting for the vertical lifting stage. Each weighing also eliminates the need to calculate the component force generated by the tilting of the trash can 8, resulting in faster detection and cleaning. Additionally, the tilting position is close to the ground, allowing for manual cleaning of the trash can 8 if it cannot be automatically emptied, making it convenient to use.

[0085] By setting a second weighing mechanism 23 between the scissor lift 21 and the first translation mechanism 22, the garbage bin 8 can be weighed before dumping garbage to confirm the weight of the garbage. At the same time, in conjunction with the first weighing mechanism 38, the weight of the empty garbage bin 8 is weighed twice and compared with the weight of the empty garbage bin 8 in its intact state to determine whether the garbage bin 8 is intact and whether the first weighing mechanism 38 and the second weighing mechanism 23 are abnormal.

[0086] In summary, the waste recycling station and collection method proposed in this application have good versatility and can simultaneously realize automatic emptying of waste bin 8, empty bin rotation of waste bin 8, waste weight detection, empty bin detection of waste bin 8, status detection of waste bin 8, and self-inspection of the weighing mechanism.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A waste recovery station, characterized by, The waste recycling station includes a building, waste bins, and a lifting and translating mechanism; The chamber is a hollow structure and is set on the ground. Positioning shafts are set on both sides of the trash can, and the lifting and translating mechanism is set at the front side of the chamber. The front end of the housing is provided with a front panel and a flipping mechanism; the flipping mechanism includes a frame and a first cylinder, the frame is rotatably disposed on the upper end of the front panel, the first end of the first cylinder is hinged to the front end of the frame, and the second end is hinged to the front end of the front panel. At least one locking mechanism is provided inside the frame. The locking mechanism includes two vertical rods disposed inside the frame. Support rods are rotatably disposed on opposite sides of the two vertical rods. The locking mechanism also includes a second cylinder. The first end of the second cylinder is hinged to the bottom of the inner side of the frame, and the second end is hinged to the rear end of the support rod away from the vertical rod. A slot is opened at the rear end of the support rod. Support frames are also provided at the rear ends of the two vertical rods. The garbage truck is parked at the front end of the housing. The lifting and translating mechanism moves the garbage bin towards the front end to a first position and raises it to a set height. The second end of the second cylinder extends and drives the support rod to rotate from the first position to a second position. The lifting and translating mechanism moves the garbage bin towards the front end to the second position, so that the positioning shafts on both sides of the garbage bin slide into the slots respectively. At the same time, the front end of the garbage bin contacts the rear end face of the support frame. The second end of the first cylinder retracts and drives the frame to rotate to the second position. The opening of the garbage bin is located below the front end of the bottom of the bin and dumps garbage into the hopper of the garbage truck. The lifting and translating mechanism includes a scissor lift and a first translating mechanism. The lower end of the scissor lift is embedded in the ground, and the first translating mechanism is disposed on the platform of the scissor lift. The inner rear end of the building is also provided with a set of lifting and translating mechanisms; the garbage recycling station also includes at least two supports, which are vertically set on the ground inside the building, located between the two sets of lifting and translating mechanisms, and parallel to the first translating mechanism. A second translating mechanism is horizontally set at the lower end between the two supports, and the height of the second translating mechanism corresponds to the height of the first translating mechanism when it is not raised. A third translating mechanism is horizontally set at the upper end between the two supports, and the height of the third translating mechanism corresponds to the height of the first translating mechanism after it is raised. A first weighing mechanism is provided at the rear end of the support frame, and the first weighing mechanism is arranged parallel to the support frame; a second weighing mechanism is provided between the first translation mechanism and the scissor lift, and the second weighing mechanism is arranged parallel to the first translation mechanism.

2. The garbage collection station of claim 1, wherein: The slot includes a first slot at the rear end of the support rod and a second slot at the front end of the first slot. The lower ends of the first slot and the second slot are connected. The first slot is horizontally arranged and the second slot is vertically arranged. The support frame is a semi-frame with an opening facing the front end. The front end has a connecting plate that bends toward the centerline of the support frame. The connecting plate is fixedly connected to the rear end of the vertical rod. The flipping mechanism also includes a guide plate, which is fixed to the rear end of the two vertical rods and coaxially arranged with the support frame. The width of the guide plate is not less than the width of the trash can, the lower end of the guide plate is not higher than the upper end of the trash can, and the upper end of the guide plate extends to the upper end of the frame.

3. The garbage collection station of claim 1, wherein: The flipping mechanism also includes a fixed frame and a proximity switch. The fixed frame is located at the inner rear end of the support frame, and the proximity switch is fixed to the fixed frame. The rear end of the proximity switch has a rotatable swing arm that extends out of the rear end of the support frame. The front end of the trash can contacts the rear end face of the support frame. The swing arm is squeezed by the trash can and rotates to a second position, triggering the proximity switch.

4. The garbage collection station of claim 1, wherein: The first translation mechanism includes two vertically arranged side plates, a horizontally arranged support plate between the two side plates, and a rotating shaft rotatably arranged at the front and rear ends between the two side plates. Pulleys are fixedly sleeved on the outer sides of the two rotating shafts, and a conveyor belt is sleeved on the outer sides of the two pulleys. The support plate is supported on the upper inner side of the conveyor belt. A motor is arranged on the side of the side plate, and the output end of the motor is connected to the rotating shaft.

5. The garbage collection station of claim 1, wherein: The first weighing mechanism includes a first support portion disposed at the rear end of the support frame and first weighing sensors disposed at the four corners of the rear end of the support frame. The first support portion is slidable relative to the support frame in a direction perpendicular to the support frame. The first support portion is squeezed by the trash can and supported on the four first weighing sensors. The second weighing mechanism includes a support disposed at the upper end of the scissor lift platform, a second support portion disposed at the upper end of the support, and four second weighing sensors. The positions of the second weighing sensors correspond to the four corners of the lower end of the first translation mechanism. The second support portion is slidable relative to the platform in a direction perpendicular to the platform. The second support portion is supported on the four second weighing sensors. The waste recycling station also includes a controller, which is electrically connected to the scissor lift, the first translation mechanism, the first cylinder, the second cylinder, the first weighing sensor, and the second weighing sensor.

6. The method of claim 1, wherein the garbage collection station is used for disposal of waste, and wherein the method further comprises: The removal method includes the following steps: ​ Step S1: The lifting and translating mechanism moves the trash can towards the front end to the first position, and then lifts the trash can to the set height; In step S2, the second end of the second cylinder extends, driving the support rod to rotate from the first position to the second position. At this time, the positioning shaft of the trash can enters the slot, and the lifting and translating mechanism moves the trash can towards the front end to the second position, so that the positioning shaft slides into the slot, and at the same time, the front end of the trash can abuts against the rear end of the support frame. In step S3, the second end of the first cylinder retracts, driving the frame to rotate from the first position to the second position. The frame drives the support rod, support frame and garbage can to rotate together. At this time, the opening of the garbage can is located below the front end of the bottom of the can and dumps garbage into the hopper of the garbage truck.

7. The cleaning method according to claim 6, characterized in that, The cleaning method also includes the following steps: Step S31: Enter the set weight range when the trash can is empty; Step S32: After the trash can is emptied, the first cylinder drives the frame to rotate to a horizontal position, and the first weighing mechanism weighs the first weight data. At this time, the positioning shaft of the trash can is not supported at the lower end of the second groove, and the center of gravity of the trash can is located above the first weighing mechanism. The first weight data is the weight of the trash can at this time. Step S33: Make a judgment to determine whether the first weight data is within the set weight range; when the first weight data is within the set weight range or less than the minimum value of the set weight range, determine that the trash can is emptied cleanly and jump to step S4; when the first weight data is greater than the maximum value of the set weight range, determine that the trash can is not emptied cleanly, the second end of the first cylinder retracts, and the drive frame rotates from the horizontal position back to the second position. In step S4, the second end of the first cylinder extends, driving the frame to rotate to the first position; Step S41: The second weighing mechanism weighs the second weight data. At this time, the positioning shaft of the trash can is not supported at the lower end of the second groove. The second weight data is the weight of the trash can at this time. Step S42, second judgment, determine whether the second weight data is within the set weight range; when the second weight data is within the set weight range and the first weight data is also within the set weight range, determine that the trash can is normal; If the second weight data is less than the minimum value of the set weight range and the first weight data is also less than the minimum value of the set weight range, the trash can is judged to be damaged; if either the second weight data or the first weight data is less than the minimum value of the set weight range, while the other is within the set weight range, the weighing mechanism is judged to be abnormal.

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