Municipal solid waste sorting machine

Abstract

The invention relates to the technical field of garbage sorting, and discloses a municipal solid waste sorting machine which comprises a conveying belt, the top end of the conveying belt is fixedly connected with a scattering and sorting mechanism, the top end of the scattering and sorting mechanism is fixedly connected with a connecting box, the side face of the scattering and sorting mechanism is fixedly connected with a discharging port, and the discharging port is fixedly connected with a discharging port. The side face, away from the discharge outlet, of the connecting box is fixedly connected with a dewatering mechanism, and the bottom end of the dewatering mechanism is fixedly connected with a drainage mechanism. When garbage enters a fixed pipeline, a servo motor is started and drives an output gear to rotate through an output shaft, the output gear rotates to drive an outer gear ring and an inner gear ring to rotate, the outer gear ring rotates to drive a first extrusion ring to rotate, and the inner gear ring rotates to drive a second extrusion ring to rotate; and a first extrusion ring and a second extrusion ring can extrude the garbage in the fixed pipeline, sewage in the garbage is extruded out, and garbage sorting is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage sorting, and more particularly to a machine for sorting urban domestic garbage. Background Art

[0002] Urban domestic waste refers to solid waste generated in daily urban life or in activities that provide services for daily urban life, as well as solid waste that is deemed as urban domestic waste by laws and administrative regulations. It mainly includes residential domestic waste, commercial waste, market waste, street waste, public place waste, and waste from government agencies, schools, factories and mines, but does not include hazardous solid waste such as industrial waste residues and special waste. The amount of urban domestic waste generated is increasing year by year, and the environmental pollution problems caused by it are becoming more and more serious.

[0003] In order to prevent the impact of urban domestic waste on the daily life of the city, it is necessary to use a sorting machine to sort the urban domestic waste, separate the waste with recycling value such as paper, plastic, aluminum and iron products in the domestic waste, and crush the remaining combustibles and send them to power plants and cement plants for use as recycled fuel. Therefore, it can avoid the pollution of the environment by urban domestic waste and turn urban domestic waste into treasure.

[0004] When sorting urban domestic waste, it is necessary to separate waste of different qualities. Light waste is generally paper and plastic, while heavy waste is generally metal, waste electrical appliances, etc. The wind is used to separate light and heavy waste, but the waste generally contains water. When the water is absorbed by the paper or wrapped by the plastic, the weight of the waste itself increases, which can cause errors in waste sorting.

[0005] When garbage is sorted under wind power, it is easy for the garbage to be entangled with each other. When different garbage is entangled together, even if the light garbage does not contain water, the light garbage cannot be blown away in time and sorted. In addition, when the sewage in the garbage is discharged, it is easy for the sewage to accumulate at the bottom of the sewage pool and cannot be discharged in time. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the implementation regulations of the present invention provide a municipal domestic waste sorting machine to solve the technical problems raised in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a municipal domestic waste sorting machine, comprising a conveyor belt, a top end of the conveyor belt is fixedly connected to a scattering and sorting mechanism, a top end of the scattering and sorting mechanism is fixedly connected to a connection box, a side of the scattering and sorting mechanism is fixedly connected to a discharge port, a side of the connection box away from the discharge port is fixedly connected to a dehydration mechanism, and a bottom end of the dehydration mechanism is fixedly connected to a drainage mechanism;

[0008] The dehydration mechanism includes a fixed pipe located above the drainage mechanism and fixedly connected to the drainage mechanism, a servo motor is fixedly connected inside the fixed pipe, an output shaft is fixedly connected to the side of the servo motor, an output gear is fixedly connected to the side of the output shaft, an outer gear ring is meshed at the top of the output gear, an inner gear ring is meshed at the bottom of the output gear, a first extrusion ring is fixedly connected to the side of the outer gear ring, a second extrusion ring is fixedly connected to the side of the inner gear ring, the first extrusion ring and the second extrusion ring are respectively located on both sides of the outer gear ring and the inner gear ring, and an arc groove is opened and closed inside the conveyor belt for the outer gear ring, the inner gear ring, the first extrusion ring and the second extrusion ring to move.

[0009] In a preferred embodiment, the side of the outer gear ring is movably connected to an upper limit ring, the top of which is fixedly connected to the inside of the fixed pipe, and the side of the inner gear ring is movably connected to a lower limit ring, the bottom of which is fixedly connected to the inside of the fixed pipe.

[0010] In a preferred embodiment, the bottom end of the fixed pipe is fixedly connected to a limiting block, and when the first extrusion ring and the second extrusion ring are not moved, the bottom ends of the first extrusion ring, the second extrusion ring and the limiting block are in the same plane, and a filter hole is provided at the bottom end of the fixed pipe.

[0011] In a preferred embodiment, the stirring and sorting mechanism includes a sorting box for receiving the garbage discharged from the dehydration mechanism, a fixed plate is fixedly connected to the side of the sorting box, the fixed plate enters into the interior of the sorting box, and the side of the fixed plate entering into the interior of the sorting box is fixedly connected to a stirring component, the bottom end of the fixed plate is fixedly connected to an output motor, the output motor is fixedly connected to a connecting shaft on the side close to the sorting box, a synchronous belt is fixedly connected to the side of the connecting shaft, the synchronous belt is located outside the sorting box, a rotating shaft is meshed on the inner side of the middle of the synchronous belt, and a wind blade is fixedly connected to the inside of the rotating shaft.

[0012] In a preferred embodiment, the side of the wind blade away from the sorting box is movably connected to a support frame, the side of the support frame close to the sorting box is fixedly connected to a filter screen, the side of the filter screen close to the sorting box is fixedly connected to the side of the sorting box, and the wind blown out of the wind blade enters the sorting box.

[0013] In a preferred embodiment, the stirring assembly includes a triangular box fixedly connected to a fixed plate, the side of the connecting shaft is fixedly connected with an output bevel gear, and the output bevel gear is located inside the triangular box, the two ends of the output bevel gear away from the side of the connecting shaft are meshed with driven bevel gears, the sides of the two driven bevel gears away from the output bevel gears are fixedly connected with a stirring shaft, and the side of the stirring shaft away from the driven bevel gears is fixedly connected with a stirring blade.

[0014] In a preferred embodiment, the triangular box is pyramidal, and the tip of the triangular box is located at the top, the connecting axis is located directly below the fixed plate, the breaking up axis is perpendicular to the side of the triangular box, and the two breaking up blades form an angle of ninety degrees.

[0015] In a preferred embodiment, a reciprocating screw is fixedly connected to the bottom end of the sorting box, the drainage mechanism includes a collection box that can accommodate garbage and sewage, a stirring plate is threadedly connected to the side of the collection box, the stirring plate is located at the bottom end of the inside of the collection box, and a drainage pipe is fixedly connected to the bottom end of the side of the collection box.

[0016] Technical effects and advantages of the present invention:

[0017] 1. When the garbage of the present invention enters the fixed pipe, the servo motor starts and drives the output gear to rotate through the output shaft. When the output gear rotates, it drives the outer gear ring and the inner gear ring to rotate. The outer gear ring rotates and drives the first extrusion ring to rotate. When the inner gear ring rotates, it drives the second extrusion ring to rotate. The first extrusion ring and the second extrusion ring will squeeze the garbage in the fixed pipe and squeeze out the sewage in the garbage, so as to facilitate garbage sorting;

[0018] 2. The present invention is provided with a connecting shaft, output bevel gears, and a scattering shaft. After the garbage is squeezed from the sewage in the dehydration mechanism and falls into the sorting box, the output motor will start and drive the connecting shaft to rotate. When the connecting shaft rotates, the output bevel gears drive the driven bevel gears to rotate. When the driven bevel gears rotate, the scattering blades are driven to rotate through the scattering shaft. The scattering blades can scatter the garbage, thereby improving the accuracy of wind-powered sorting of garbage.

[0019] 3. The present invention is provided with a reciprocating screw stirring plate, a collection box, and a drain pipe. When the output motor is started and drives the synchronous belt to rotate, it will synchronously drive the reciprocating screw to rotate. When the reciprocating screw rotates, it will drive the stirring plate to reciprocate at the bottom of the collection box. When the stirring plate reciprocates, it will stir up the sewage and impurities at the bottom of the collection box to facilitate their discharge from the drain pipe, thereby avoiding the long-term accumulation of garbage and sewage and the breeding of bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the fixed pipeline of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure after the fixed pipeline below the center plane of the present invention is removed.

[0024] Figure 5 It is a schematic diagram of the explosion structure of the dehydration mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the connection part between the connection box and the dehydration mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the stirring and sorting mechanism of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the sorting box of the present invention.

[0028] Fig. 9 It is a schematic diagram of the structure of the stirring component of the present invention.

[0029] Fig.10 It is a schematic diagram of the drainage mechanism structure of the present invention.

[0030] The accompanying drawings are marked as follows: 1. conveyor belt; 2. stirring and sorting mechanism; 201. sorting box; 202. fixing plate; 203. output motor; 204. support frame; 205. filter screen; 206. connecting shaft; 207. synchronous belt; 208. rotating shaft; 209. wind blade; 210. stirring assembly; 2101. triangular box; 2102. output bevel gear; 2103. driven bevel gear; 2104. scattering shaft; 2105. scattering blade; 3. connecting Connecting box; 4. Dehydration mechanism; 401. Fixed pipe; 402. External gear ring; 403. Internal gear ring; 404. First extrusion ring; 405. Second extrusion ring; 406. Upper limit ring; 407. Lower limit ring; 408. Servo motor; 409. Limit block; 410. Output shaft; 411. Output gear; 5. Drainage mechanism; 501. Reciprocating screw; 502. Agitating plate; 503. Collection box; 504. Drainage pipe; 6. Discharge port. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The urban domestic waste sorting machine involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 5 The present invention provides a sorting machine for urban domestic waste, comprising a conveyor belt 1, a top end of the conveyor belt 1 is fixedly connected to a scattering and sorting mechanism 2, a top end of the scattering and sorting mechanism 2 is fixedly connected to a connection box 3, a side of the scattering and sorting mechanism 2 is fixedly connected to a discharge port 6, a side of the connection box 3 away from the discharge port 6 is fixedly connected to a dehydration mechanism 4, and a bottom end of the dehydration mechanism 4 is fixedly connected to a drainage mechanism 5;

[0033] The dewatering mechanism 4 includes a fixed pipe 401 located above the drainage mechanism 5 and fixedly connected to the drainage mechanism 5, a servo motor 408 is fixedly connected inside the fixed pipe 401, an output shaft 410 is fixedly connected to the side of the servo motor 408, an output gear 411 is fixedly connected to the side of the output shaft 410, an outer gear ring 402 is meshed at the top of the output gear 411, an inner gear ring 403 is meshed at the bottom of the output gear 411, a first extrusion ring 404 is fixedly connected to the side of the outer gear ring 402, a second extrusion ring 405 is fixedly connected to the side of the inner gear ring 403, the first extrusion ring 404 and the second extrusion ring 405 are respectively located on both sides of the outer gear ring 402 and the inner gear ring 403, and the inner part of the conveyor belt 1 An arc groove is opened and closed for the outer gear ring 402, the inner gear ring 403, the first extrusion ring 404 and the second extrusion ring 405 to move. An upper limit ring 406 is movably connected to the side of the outer gear ring 402. The top of the upper limit ring 406 is fixedly connected to the inside of the fixed pipe 401. A lower limit ring 407 is movably connected to the side of the inner gear ring 403. The bottom end of the lower limit ring 407 is fixedly connected to the inside of the fixed pipe 401. The bottom end of the fixed pipe 401 is fixedly connected to a limit block 409. When the first extrusion ring 404 and the second extrusion ring 405 are not moved, the bottom ends of the first extrusion ring 404, the second extrusion ring 405 and the limit block 409 are in the same plane, and a filtering hole is provided at the bottom end of the fixed pipe 401.

[0034] In the embodiment of the present application, when the garbage enters the lower part of the fixed pipe 401, the first squeezing ring 404 and the second squeezing ring 405 will move downward to squeeze the garbage. After the garbage is squeezed, the sewage in the garbage will be squeezed out to improve the accuracy of subsequent garbage sorting. The servo motor 408 can control the output shaft 410 to rotate forward and reverse, thereby making the first squeezing ring 404 and the second squeezing ring 405 rotate downward or upward, squeezing when rotating downward, and releasing the squeezed garbage when moving upward to facilitate its unloading. The first squeezing ring 404 and the second squeezing ring 405 of the present application There are two groups of pressure rings 405 to prevent garbage from falling directly without being squeezed. The position of the outer gear ring 402 can be limited by the upper limit ring 406, and the position of the inner gear ring 403 is limited by the lower limit ring 407 to ensure that it is sufficiently stable when rotating. The outer gear ring 402 is only connected to the first squeezing ring 404 but not to the second squeezing ring 405, and the inner gear ring 403 is only connected to the second squeezing ring 405 but not to the first squeezing ring 404. The bottom ends of the first squeezing ring 404, the second squeezing ring 405 and the limit block 409 are in the same plane to prevent garbage from being stuck.

[0035] Reference Figure 6 , Figure 7 as well as Figure 8The scattering and sorting mechanism 2 includes a sorting box 201 for receiving the garbage discharged from the dehydration mechanism 4, a fixed plate 202 is fixedly connected to the side of the sorting box 201, the fixed plate 202 enters the interior of the sorting box 201, and a scattering component 210 is fixedly connected to the side of the fixed plate 202 entering the interior of the sorting box 201, an output motor 203 is fixedly connected to the bottom end of the fixed plate 202, a connecting shaft 206 is fixedly connected to the side of the output motor 203 close to the sorting box 201, and a synchronous belt 207 is fixedly connected to the side of the connecting shaft 206 The synchronous belt 207 is located outside the sorting box 201, and a rotating shaft 208 is meshed on the inner side of the middle of the synchronous belt 207. A wind blade 209 is fixedly connected to the inside of the rotating shaft 208. The side of the wind blade 209 away from the sorting box 201 is movably connected to the support frame 204. The side of the support frame 204 close to the sorting box 201 is fixedly connected to the filter screen 205. The side of the filter screen 205 close to the sorting box 201 is fixedly connected to the side of the sorting box 201, and the wind blown out of the wind blade 209 enters the sorting box 201.

[0036] In the embodiment of the present application, the garbage in the dehydration mechanism 4 will completely fall into the sorting box 201. When the garbage falls, the stirring component 210 will run and scatter it. At this time, the output motor 203 will start and make the connecting shaft 206 drive the synchronous belt 207 to rotate. After the synchronous belt 207 rotates, the wind blade 209 will rotate and blow air into the sorting box 201. The blown wind will pass through the filter 205. The filter 205 can prevent the garbage in the sorting box 201 from falling on the side of the wind blade 209 and affecting its operation. When the wind enters the sorting box 201, sorting work can be carried out. The wind blade 209 can be supported by the support frame 204 and the filter 205 to maintain its stability. The sorting box 201 can fix and support the output motor 203 and the stirring component 210.

[0037] Reference Figure 8 and Fig. 9 The stirring component 210 includes a triangular box 2101 fixedly connected to the fixed plate 202, the side of the connecting shaft 206 is fixedly connected with an output bevel gear 2102, and the output bevel gear 2102 is located inside the triangular box 2101, and the two ends of the output bevel gear 2102 away from the side of the connecting shaft 206 are meshed with driven bevel gears 2103, the sides of the two driven bevel gears 2103 away from the output bevel gear 2102 are fixedly connected with a breaking up shaft 2104, and the sides of the breaking up shaft 2104 away from the driven bevel gear 2103 are fixedly connected with a breaking up blade 2105, the triangular box 2101 is a pyramid shape, and the tip of the triangular box 2101 is located at the top, the connecting shaft 206 is located directly below the fixed plate 202, the breaking up shaft 2104 is perpendicular to the side of the triangular box 2101, and the two breaking up blades 2105 are at an angle of ninety degrees.

[0038] In the embodiment of the present application, when the garbage is scattered, the top of the triangular box 2101 is firstly a pointed end. When the garbage falls on it, it can have a certain scattering effect, and the scattering blades 2105 will rotate, thereby achieving a better scattering effect. The two scattering blades 2105 are ninety degrees apart, which can avoid collision with each other when rotating. The fixed plate 202 is located directly above the connecting shaft 206, which can protect the connecting shaft 206 and prevent it from being crushed by the falling garbage.

[0039] Reference Fig.10 The bottom end of the sorting box 201 is fixedly connected to a reciprocating screw rod 501, and the drainage mechanism 5 includes a collection box 503 that can accommodate garbage and sewage. The side of the collection box 503 is threadedly connected to a stirring plate 502, and the stirring plate 502 is located at the bottom end of the inside of the collection box 503. The bottom end of the side of the collection box 503 is fixedly connected to a drainage pipe 504.

[0040] In the embodiment of the present application, when the synchronous belt 207 rotates, it will synchronously drive the reciprocating screw 501 to rotate. When the reciprocating screw 501 rotates, it drives the stirring plate 502 to reciprocate at the bottom end of the collection box 503. When the stirring plate 502 reciprocates, it stirs up various substances adhered to the bottom end of the collection box 503 so that they can all be discharged through the drain pipe 504.

[0041] The working principle of the present invention is as follows: after being crushed, the municipal domestic garbage will be sent to the upper part of the fixed pipe 401 and then enter the fixed pipe 401. When the garbage enters the fixed pipe 401, the servo motor 408 rotates forward and drives the output gear 411 to rotate forward through the output shaft 410. When the output gear 411 rotates forward, it drives the upper outer gear ring 402 to rotate downward, and when the output gear 411 rotates forward, it drives the lower inner gear ring 403 to rotate downward. The outer gear ring 402 drives the outer gear ring 402 to rotate downward, and the inner gear ring 403 drives the second extrusion ring 40 5 rotates downward, and the first squeezing ring 404 and the second squeezing ring 405 will squeeze the garbage entering the fixed pipe 401 when they rotate downward, squeeze out the sewage in the garbage, and the sewage will enter the drainage mechanism 5 through the filter hole below the fixed pipe 401. When the servo motor 408 controls the output shaft 410 to reverse, the first squeezing ring 404 and the second squeezing ring 405 will move upward, and the squeezed garbage will be loosened to facilitate its unloading. The first squeezing ring 404 and the second squeezing ring 405 are provided with two groups, so that the garbage can be squeezed more thoroughly.

[0042] The squeezed garbage will pass through the connecting box 3 and fall into the sorting box 201. At this time, the output motor 203 will start and drive the connecting shaft 206 to rotate. When the connecting shaft 206 rotates, it drives the output bevel gear 2102 to rotate. When the output bevel gear 2102 rotates, it drives the scattering shaft 2104 to rotate through the driven bevel gears 2103 on both sides. When the scattering shaft 2104 rotates, it drives the scattering blades 2105 to rotate. When the scattering blades 2105 rotate, the garbage will be scattered. The garbage continues to descend in the sorting box 201, and the connecting shaft 206 rotates to synchronously drive the rotating shaft 208 to rotate, and the rotating shaft 208 drives the wind blade 209 to rotate and blow air into the sorting box 201. At this time, the light garbage such as plastic or paper in the sorting box 201 enters the discharge port 6 under the action of wind and is transported through the discharge port 6, while the heavy garbage such as metal will directly move downward in the sorting box 201 and fall above the conveyor belt 1 to be transported through the conveyor belt 1;

[0043] When the synchronous belt 207 rotates, it will synchronously drive the reciprocating screw 501 to rotate. When the reciprocating screw 501 rotates, it drives the stirring plate 502 to reciprocate at the bottom end of the collection box 503. When the stirring plate 502 reciprocates, it stirs up various substances adhering to the bottom end of the collection box 503 so that they can all be discharged through the drain pipe 504.

[0044] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A municipal solid waste sorting machine, comprising a conveyor belt (1), characterized in that: The top of the conveyor belt (1) is fixedly connected to a stirring and sorting mechanism (2), the top of the stirring and sorting mechanism (2) is fixedly connected to a connection box (3), the side of the stirring and sorting mechanism (2) is fixedly connected to a discharge port (6), the side of the connection box (3) away from the discharge port (6) is fixedly connected to a dehydration mechanism (4), and the bottom of the dehydration mechanism (4) is fixedly connected to a drainage mechanism (5); The dewatering mechanism (4) comprises a fixed pipe (401) located above the drainage mechanism (5) and fixedly connected to the drainage mechanism (5); a servo motor (408) is fixedly connected inside the fixed pipe (401); an output shaft (410) is fixedly connected to the side of the servo motor (408); an output gear (411) is fixedly connected to the side of the output shaft (410); an outer gear ring (402) is meshed at the top end of the output gear (411); an inner gear ring (402) is meshed at the bottom end of the output gear (411); 403), a first extrusion ring (404) is fixedly connected to the side of the outer gear ring (402), a second extrusion ring (405) is fixedly connected to the side of the inner gear ring (403), the first extrusion ring (404) and the second extrusion ring (405) are respectively located on both sides of the outer gear ring (402) and the inner gear ring (403), and an arc groove is opened and closed inside the conveyor belt (1) for the outer gear ring (402), the inner gear ring (403), the first extrusion ring (404) and the second extrusion ring (405) to move.

2. The urban domestic waste sorting machine according to claim 1, characterized in that: An upper limit ring (406) is movably connected to the side of the outer gear ring (402), and the top of the upper limit ring (406) is fixedly connected to the inside of the fixed pipe (401). A lower limit ring (407) is movably connected to the side of the inner gear ring (403), and the bottom of the lower limit ring (407) is fixedly connected to the inside of the fixed pipe (401).

3. The urban domestic waste sorting machine according to claim 2, characterized in that: The bottom end of the fixed pipe (401) is fixedly connected to a limiting block (409); when the first extrusion ring (404) and the second extrusion ring (405) are not moving, the bottom ends of the first extrusion ring (404), the second extrusion ring (405) and the limiting block (409) are in the same plane; and a filtering hole is provided at the bottom end of the fixed pipe (401).

4. The urban domestic waste sorting machine according to claim 1, characterized in that: The scattering and sorting mechanism (2) comprises a sorting box (201) for receiving the garbage discharged from the dehydration mechanism (4); a fixed plate (202) is fixedly connected to the side of the sorting box (201); the fixed plate (202) enters into the interior of the sorting box (201); and a scattering assembly (210) is fixedly connected to the side of the fixed plate (202) that enters into the interior of the sorting box (201); an output motor (203) is fixedly connected to the bottom end of the fixed plate (202); a connecting shaft (206) is fixedly connected to the side of the output motor (203) close to the sorting box (201); a synchronous belt (207) is fixedly connected to the side of the connecting shaft (206); the synchronous belt (207) is located outside the sorting box (201); a rotating shaft (208) is meshed with the inner side of the middle of the synchronous belt (207); and a wind blade (209) is fixedly connected to the inner side of the rotating shaft (208).

5. The urban domestic waste sorting machine according to claim 4, characterized in that: The side of the wind blade (209) away from the sorting box (201) is movably connected to a support frame (204), the side of the support frame (204) close to the sorting box (201) is fixedly connected to a filter screen (205), the side of the filter screen (205) close to the sorting box (201) is fixedly connected to the side of the sorting box (201), and the wind blown out of the wind blade (209) enters the sorting box (201).

6. The urban domestic waste sorting machine according to claim 5, characterized in that: The dispersing assembly (210) comprises a triangular box (2101) fixedly connected to a fixed plate (202); an output bevel gear (2102) is fixedly connected to a side surface of the connecting shaft (206), and the output bevel gear (2102) is located inside the triangular box (2101); two ends of the output bevel gear (2102) away from the side surface of the connecting shaft (206) are meshed with driven bevel gears (2103); two sides of the driven bevel gears (2103) away from the output bevel gear (2102) are fixedly connected to a dispersing shaft (2104); and a side of the dispersing shaft (2104) away from the driven bevel gear (2103) is fixedly connected to a dispersing blade (2105).

7. The urban domestic waste sorting machine according to claim 6, characterized in that: The triangular box (2101) is pyramid-shaped, and the tip of the triangular box (2101) is located at the top, the connecting shaft (206) is located directly below the fixed plate (202), the scattering shaft (2104) is perpendicular to the side of the triangular box (2101), and the two scattering blades (2105) form an angle of ninety degrees.

8. The urban domestic waste sorting machine according to claim 4, characterized in that: The bottom end of the sorting box (201) is fixedly connected to a reciprocating screw rod (501); the drainage mechanism (5) comprises a collection box (503) capable of accommodating garbage and sewage; a side of the collection box (503) is threadedly connected to a stirring plate (502); the stirring plate (502) is located at the bottom end of the collection box (503); and a drainage pipe (504) is fixedly connected to the bottom end of the side of the collection box (503).

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