A garbage conveying device for a buried station and a method thereof

Abstract

This invention discloses a waste conveying device for underground stations. Through the arrangement of a sensing mechanism, a pressing mechanism, and an extension mechanism, waste that does not directly pass through the discharge port can be detected by a photoelectric sensor. The generated electrical signal is then fed back to the underground station's electrical control system, causing the system to control the retraction of the extension electric push rod. This retraction causes the extension plate to rotate downwards, increasing the diameter of the discharge port. Simultaneously, the system controls a third motor in the pressing mechanism to rotate a rotating rod, which in turn rotates the pressing electric push rod to a designated position. The extended end of the pressing electric push rod then contacts the waste with a silicone pressing plate, pushing the waste through the discharge port and into the corresponding waste bin. This prevents large packages of waste that do not directly pass through the discharge port from accumulating on the conveying plate, thus avoiding disruption to the smooth operation of the conveying device and subsequent waste disposal.

Description

Technical Field

[0001] This application relates to waste sorting technology, specifically to a waste conveying device and method for underground stations. Background Technology

[0002] A buried waste disposal station is a type of equipment that is concealed underground for waste treatment. This equipment is a combination of sealed, environmentally friendly, and highly efficient waste collection, transfer, and transportation equipment, which solves the problems of odor, smell, and mosquito and fly breeding that existed in the traditional open operation mode of waste compressors.

[0003] The existing announcement number CN113844794A discloses an intelligent underground waste station, including a feeding box and multiple waste bins installed below the feeding box for storing different types of waste. The feeding box is installed above ground, and the waste bins are buried below ground. A waste conveying device is installed between the feeding box and the waste bins. The waste conveying device is controlled by an electrical control system and is used to transfer the waste from the feeding box to the designated waste bins. The waste conveying device in this design simply has multiple discharge ports corresponding to waste classification on the conveying plate. The discharge port diameter is fixed. For some large packages of waste that exceed the discharge port diameter, they cannot fall directly from the discharge port into the corresponding waste bin, and instead accumulate on the conveying plate, thus affecting the smooth operation of the device and the subsequent waste disposal. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a waste conveying device for underground stations to solve the problems mentioned in the background art.

[0005] According to one aspect of this application, a waste conveying device for a landfill station includes a support frame, a first motor, a drive sprocket set, a driven sprocket set, a transmission chain, conveying scrapers, a fixed conveying plate, a sensing mechanism, a pressing mechanism, an expanding mechanism, a second motor, a drive gear, a fixed rack, and a floating opening and closing mechanism. The drive sprocket set and the driven sprocket set are respectively fixed at both ends of the support frame, and the drive sprocket set and the driven sprocket set are connected by a transmission chain. The first motor is fixed to one side of the support frame, and the output shaft of the first motor is connected to the drive sprocket set to provide power to the drive sprocket set. The fixed conveying plate is fixed to the upper part of the support frame. Multiple conveying scrapers are evenly fixed along the circumferential direction between the two sets of transmission chains. The bottom surface of the conveying scrapers located above the support frame is... The fixed conveyor plate has multiple discharge ports evenly spaced along its length, which slide in contact with the upper surface of the fixed conveyor plate. Each discharge port has an expansion mechanism on one side. The bottom of the fixed conveyor plate at each discharge port is equipped with a floating opening and closing mechanism. Each floating opening and closing mechanism is fixedly equipped with a fixed rack. A second motor is fixedly installed on one side of the support frame corresponding to each discharge port. The output shaft of the second motor is fixedly connected to a drive gear. The drive gear meshes with the fixed rack for transmission. Multiple sensing mechanisms are provided on one side of the support frame. The opening positions of the multiple discharge ports correspond one-to-one with the setting positions of the multiple sensing mechanisms. The pressing mechanism is provided on both sides of the support frame corresponding to the opening positions of each discharge port.

[0006] Preferably, the floating opening and closing mechanism includes a sliding floating plate, a U-shaped connecting plate, a support rod, a sliding sleeve, a fixed guide rail, and floating springs. When the floating opening and closing mechanism is closed, the upper surface of the sliding floating plate is tightly fitted with the corresponding discharge port. U-shaped connecting plates are fixedly provided on both sides of the bottom of the sliding floating plate, and a support rod is provided below one of the U-shaped connecting plates. Multiple floating springs are evenly fixed between the support rod and its corresponding U-shaped connecting plate. The fixed rack is provided below the other U-shaped connecting plate, and multiple floating springs are also evenly fixed between the fixed rack and its corresponding U-shaped connecting plate. The fixed rack meshes with the drive gear. Sliding sleeves are fixedly provided at both ends of the fixed rack and the support rod on the side away from the sliding floating plate. The sliding sleeves are placed on the fixed guide rail. The fixed guide rails are fixedly provided at both sides of the bottom of the fixed conveying plate located at the discharge port.

[0007] Preferably, the pressing mechanism includes a support plate, a fixed base, a third motor, a rotating rod, a pressing electric push rod, and a silicone pressing plate. The support plate is fixedly mounted on the side wall of the support frame, and the position of the support plate corresponds to the middle position of the discharge port. The top of the support plate is higher than the upper transmission surface of the transmission chain, and the fixed base is fixedly mounted on the top of the support plate. The third motor is fixedly mounted on one side of the fixed base. The output shaft of the third motor passes through the fixed base and is connected to the fixed base through a bearing. The output shaft of the third motor is fixedly connected to one end of the rotating rod, and the pressing electric push rod is embedded in the other end of the rotating rod. The extended end of the pressing electric push rod is hinged to the bottom of the silicone pressing plate.

[0008] Preferably, the fixed cylinder of the electric push rod extends toward one end of the rotating rod, and the protruding end of the electric push rod extends slightly beyond the other end of the rotating rod.

[0009] Preferably, the sensing mechanism includes a fixed upright plate and a photoelectric sensor. The fixed upright plate is fixedly mounted on the side wall of the support frame. The photoelectric sensor is fixedly installed at an upper position on the side of the fixed upright plate near the fixed conveyor plate. The installation position of the photoelectric sensor corresponds to the side of the discharge port away from the expansion mechanism, and the setting height of the photoelectric sensor is higher than the height of the conveying scraper.

[0010] Preferably, the extension mechanism includes an extension plate, an extension electric push rod, and a mounting plate. One side of the extension plate is hinged to one side of the discharge port. The mounting plate is vertically fixed at the bottom of the fixed conveying plate near the side of the discharge port close to the extension plate. One end of the extension electric push rod is hinged to the mounting plate, and the other end of the extension electric push rod is hinged to the bottom of the extension plate. When the extension electric push rod is fully extended, the extension plate can fit tightly against one side of the discharge port.

[0011] Preferably, the inner walls of the two side plates of the two U-shaped connecting plates are in sliding contact with the two side walls of the support rod and the two side walls of the fixed rack, respectively.

[0012] Preferably, the four edges of the discharge port are covered with a rubber layer.

[0013] A method for conveying waste in an underground waste conveying device specifically includes the following steps:

[0014] Step 1: Select the type of waste to be disposed of through the control interface of the underground station. Then, the electrical control system of the underground station controls the second motor and photoelectric sensor at the corresponding discharge port to start. The second motor drives the drive gear to rotate. Since the drive gear is meshed with the fixed rack, the rotation of the drive gear drives the fixed rack to move horizontally along the fixed slide rail through the sliding sleeve. The fixed rack drives the sliding floating plate to move horizontally. At the same time, the sliding floating plate overcomes the elastic force of the floating spring and moves slightly downward to make the sliding floating plate move more smoothly. When the sliding floating plate is fully opened, the second motor stops.

[0015] Step 2: Then, the electrical control system of the underground station controls the first motor to start. The first motor drives the active sprocket set to rotate. The active sprocket set drives the driven sprocket set to rotate through the transmission chain. The transmission chain drives the conveying scraper to slide along the surface of the fixed conveying plate.

[0016] Step 3: Then, put the garbage into the underground station's feeding port. The garbage falls onto the fixed conveyor plate and is moved to the open discharge port by the conveying scraper. If the garbage is smaller than or equal to the discharge port diameter, the garbage will fall directly from the discharge port into the garbage bin corresponding to the discharge port.

[0017] If the waste is larger than the discharge port diameter, the conveying scraper continues to move the waste forward. When the photoelectric sensor corresponding to the discharge port detects the waste, the waste is still at the discharge port. The photoelectric sensor transmits an electrical signal to the electronic control system. The electronic control system controls the first motor to stop and simultaneously controls the extension electric push rod to retract. The retraction of the extension electric push rod causes the extension plate to rotate toward the bottom of the fixed conveyor plate, thereby increasing the discharge port diameter. Then, the electronic control system controls the third motor to start. The third motor drives the rotating rod to rotate toward the discharge port. The rotating rod drives the pressing electric push rod to rotate toward the discharge port. When the rotating rod rotates to the designated position, the third motor is controlled to stop. Then, the pressing electric push rod is controlled to extend, causing the silicone pressure plate to extend and press against the waste, which then passes through the discharge port and falls into the corresponding waste bin.

[0018] Step 4: When the garbage falls directly from the discharge port into the garbage bin corresponding to the discharge port because the garbage is smaller than or equal to the discharge port diameter, the electronic control system controls the first motor to stop and simultaneously controls the second motor to start rotating in the opposite direction. Through the active gear and fixed rack, the sliding floating plate moves horizontally in the opposite direction to the discharge port. Due to the upward elastic force of the floating spring on the sliding floating plate, the sliding floating plate fits tightly with the discharge port.

[0019] When the waste exceeds the discharge port diameter, triggering the corresponding control by the electronic control system, the system controls the photoelectric sensor to turn off and simultaneously controls the pressing electric push rod to retract to its original position. Then, it controls the third motor to start rotating in the opposite direction, driving the rotating rod to its original position. Then, it controls the third motor to stop and simultaneously controls the extension electric push rod to extend to its original position, driving the extension plate to return to its original position. Then, it controls the second motor to start rotating in the opposite direction, driving the sliding floating plate to move horizontally in the opposite direction to the discharge port through the drive gear and fixed rack. Due to the upward elastic force of the floating spring on the sliding floating plate, the sliding floating plate fits tightly against the discharge port.

[0020] One-time garbage disposal completes the process.

[0021] This application discloses a waste conveying device for underground stations. Through the inclusion of a sensing mechanism and a pressing mechanism, waste that does not directly pass through the discharge port can be detected by a photoelectric sensor. This generates an electrical signal that is fed back to the underground station's electrical control system. The control system then controls a third motor in the pressing mechanism to rotate a rotating rod, which in turn rotates a pressing electric push rod to a designated position. The extended end of the pressing electric push rod causes a silicone pressure plate to contact the waste, pushing it through the discharge port and into the corresponding waste bin. This prevents large packages of waste that do not directly pass through the discharge port from accumulating on the conveying plate and affecting the conveying device. The system ensures smooth operation and efficient waste disposal. An extension mechanism allows the conveyor to handle large packages of waste by retracting the electric push rod, which in turn rotates the extension plate downwards, increasing the diameter of the discharge port. This, combined with the pressing mechanism, allows the large packages to be pushed through the discharge port and into the waste bin more effectively. Floating springs are installed between the U-shaped connecting plate and the fixed rack and support rod, allowing the sliding floating plate to open smoothly against the spring force and close more tightly against the discharge port when closed due to the upward force of the spring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a waste conveying device for an underground station according to an embodiment of this application.

[0023] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle.

[0024] Figure 3 This is a structural schematic diagram of the fixed conveying plate of a waste conveying device for an underground station according to an embodiment of this application, viewed from the bottom.

[0025] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure of section B.

[0026] Figure 5This is a partial cross-sectional view of a waste conveying device for an underground station according to an embodiment of this application.

[0027] Figure 6 yes Figure 5 Enlarged schematic diagram of the structure of section C.

[0028] Figure 7 This is a cross-sectional view of the floating opening and closing mechanism of a waste conveying device for underground stations according to an embodiment of this application.

[0029] Figure 8 This is a top view of a waste conveying device for an underground station according to an embodiment of this application.

[0030] Reference numerals: 1. Support frame; 2. First motor; 3. Drive sprocket assembly; 4. Driven sprocket assembly; 5. Transmission chain; 6. Conveying scraper; 7. Fixed conveying plate; 8. Sensing mechanism; 9. Pressing mechanism; 10. Extension mechanism; 11. Second motor; 12. Drive gear; 13. Fixed rack; 14. Floating opening and closing mechanism; 15. Discharge port; 16. Sliding floating plate; 17. U-shaped connecting plate; 18. Support rod; 19. Sliding sleeve; 20. Fixed guide rail; 21. Floating spring; 22. Supporting upright plate; 23. Fixed base; 24. Third motor; 25. Rotating rod; 26. Pressing electric push rod; 27. Silicone pressure plate; 28. Fixed upright plate; 29. ​​Photoelectric sensor; 30. Extension plate; 31. Extension electric push rod; 32. Mounting plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] To make the content of this application easier to understand, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] like Figures 1 to 8As shown, a waste conveying device for a landfill includes a support frame 1, a first motor 2, a drive sprocket assembly 3, a driven sprocket assembly 4, a transmission chain 5, a conveying scraper 6, a fixed conveying plate 7, a sensing mechanism 8, a pressing mechanism 9, an expanding mechanism 10, a second motor 11, a drive gear 12, a fixed rack 13, and a floating opening and closing mechanism 14. The drive sprocket assembly 3 and the driven sprocket assembly 4 are fixedly mounted at both ends of the support frame 1. The drive sprocket assembly 3 and the driven sprocket assembly 4 are connected by the transmission chain 5, forming a rotary structure that facilitates the cyclic movement of the conveying scraper 6. The first motor 2 is fixedly mounted on one side of the support frame 1. Furthermore, the output shaft of the first motor 2 is connected to the drive sprocket assembly 3 to provide power to the drive sprocket assembly 3. A fixed conveyor plate 7 is fixedly installed on the upper part of the support frame 1. Multiple conveying scrapers 6 are evenly fixed between the two sets of transmission chains 5 along their transmission circumference. The bottom surfaces of the conveying scrapers 6 located above the support frame 1 are in sliding contact with the upper surface of the fixed conveyor plate 7. In the design, the bottom of the conveying scraper 6 is horizontally bent to form a plane that fits against the upper surface of the fixed conveyor plate 7. Multiple discharge ports 15 are evenly spaced along the length of the fixed conveyor plate 7. The four edges of the discharge ports 15 are covered with a rubber layer. Each discharge port 15 is placed below a corresponding classified garbage bin for use. For waste sorting and disposal, each discharging port 15 has an expansion mechanism 10 on one side. A floating opening and closing mechanism 14 is installed at the bottom of the fixed conveyor plate 7 located at each discharging port 15. A fixed rack 13 is fixedly installed on each floating opening and closing mechanism 14. A second motor 11 is fixedly installed on one side of the support frame 1 corresponding to each discharging port 15. The output shaft of the second motor 11 is fixedly connected to a drive gear 12, which meshes with the fixed rack 13 for transmission. Multiple sensing mechanisms 8 are installed on one side of the support frame 1. The opening positions of the multiple discharging ports 15 correspond one-to-one with the positions of the multiple sensing mechanisms 8. The support frame 1 is equipped with pressing mechanisms 9 on both sides. The conveying device is installed above the classified garbage bins and below the feeding port in the underground station. In this design, through the setting of the sensing mechanism 8, pressing mechanism 9 and expansion mechanism 10, and in conjunction with the floating opening and closing mechanism 14, the device can detect large packages of garbage that exceed the diameter of the feeding port 15. The sensing mechanism 8 detects the garbage that has not fallen and then feeds back to the electronic control system to control the expansion mechanism 10 to enlarge the diameter of the feeding port 15 and at the same time control the pressing mechanism 9 to push the garbage through the feeding port 15 and fall into the garbage bin, so as to avoid the garbage accumulating on the conveying plate and affecting the smooth operation of the device and the subsequent garbage disposal.

[0034] In one embodiment, combined Figures 5-7The floating opening and closing mechanism 14 includes a sliding floating plate 16, a U-shaped connecting plate 17, a support rod 18, a sliding sleeve 19, a fixed guide rail 20, and floating springs 21. When the floating opening and closing mechanism 14 is closed, the upper surface of the sliding floating plate 16 is tightly fitted with the corresponding discharge port 15. U-shaped connecting plates 17 are fixedly provided on both sides of the bottom of the sliding floating plate 16, and a support rod 18 is provided below one of the U-shaped connecting plates 17. Multiple floating springs 21 are evenly fixed between the support rod 18 and its corresponding U-shaped connecting plate 17. A fixed rack 13 is provided below the other U-shaped connecting plate 17, and multiple floating springs 21 are also evenly fixed between the fixed rack 13 and its corresponding U-shaped connecting plate 17. The fixed rack 13 meshes with the drive gear 12. Sliding sleeves 19 are fixedly provided at both ends of the rack 13 and the support rod 18 on the side away from the sliding floating plate 16. The sliding sleeves 19 are placed on the fixed guide rails 20. Fixed guide rails 20 are fixedly provided at both sides of the bottom of the fixed conveying plate 7 at the discharge port 15. The inner walls of the two side plates of the two U-shaped connecting plates 17 slide in contact with the two side walls of the support rod 18 and the two side walls of the fixed rack 13, respectively. In this design, the floating springs 21 are provided between the U-shaped connecting plates 17 and the fixed rack 13 and the support rod 18, respectively. This allows the sliding floating plate 16 to move and open more smoothly when it is opened, overcoming the elastic force of the floating springs 21. When the sliding floating plate 16 is closed, it can fit more tightly with the discharge port 15 due to the upward elastic force of the floating springs 21.

[0035] In one embodiment, refer to Figure 2The pressing mechanism 9 includes a support plate 22, a fixed base 23, a third motor 24, a rotating rod 25, a pressing electric push rod 26, and a silicone pressing plate 27. The support plate 22 is fixedly mounted on the side wall of the support frame 1, and its position corresponds to the middle of the discharge port 15 to facilitate better pressing of the waste. The top of the support plate 22 is higher than the upper transmission surface of the transmission chain 5. This design avoids interference between the transmission chain 5 and the rotating rod 25. The fixed base 23 is fixedly mounted on the top of the support plate 22. The third motor 24 is fixedly mounted on one side of the fixed base 23. The output shaft of the third motor 24 passes through the fixed base 23 and is connected to the fixed base 23 via a bearing. The output shaft of the third motor 24 is fixedly connected to one end of the rotating rod 25. The pressing electric push rod 26 is embedded in the other end of the rotating rod 25. The extended end of the pressing electric push rod 26 is hinged to the bottom of the silicone pressing plate 27. The fixed cylinder of 26 extends towards one end of the rotating rod 25, and the extended end of the pressing electric push rod 26 slightly exceeds the other end of the rotating rod 25. This design can prevent the rotating rod 25 and the pressing electric push rod 26 from hitting the top plate inside the underground station when rotating, while ensuring a certain length. In this design, when it is necessary to push the garbage that has not fallen, the third motor 24 drives the rotating rod 25 to rotate, which in turn drives the pressing electric push rod 26 to rotate to the designated position. Then, by extending the extended end of the pressing electric push rod 26, the silicone pressing plate 27 on it touches the garbage, pushing the garbage through the discharge port 15 and into the corresponding garbage bin. The silicone pressing plate 27 is designed because the silicone material can ensure a certain hardness while ensuring that the silicone will not damage the garbage bag. The hinged design of the extended end of the pressing electric push rod 26 and the silicone pressing plate 27 makes the rotatable silicone pressing plate 27 more adaptable to the irregular shape of the garbage surface when pushing the garbage.

[0036] In one embodiment, combined Figure 2 and Figure 8 The sensing mechanism 8 includes a fixed plate 28 and a photoelectric sensor 29. The fixed plate 28 is fixedly mounted on the side wall of the support frame 1. The photoelectric sensor 29 is fixedly installed on the upper part of the side of the fixed plate 28 near the fixed conveyor plate 7. The installation position of the photoelectric sensor 29 corresponds to the side of the discharge port 15 away from the expansion mechanism 10. This design avoids the photoelectric sensor 29 from detecting garbage that can directly pass through the discharge port 15 and affecting the operation of the device. In addition, the installation height of the photoelectric sensor 29 is higher than the height of the conveying scraper 6. This design avoids the conveying scraper 6 from interfering with the photoelectric sensor 29. The photoelectric sensor 29 can be selected as a through-beam photoelectric sensor, a reflector photoelectric sensor, or a diffuse reflection photoelectric sensor. Each type of photoelectric sensor 29 needs to be installed according to its characteristics.

[0037] In one embodiment, combined Figure 3 and Figure 4 The expansion mechanism 10 includes an expansion plate 30, an expansion electric push rod 31, and a mounting plate 32. One side of the expansion plate 30 is hinged to one side of the discharge port 15. The mounting plate 32 is vertically fixed at the bottom of the fixed conveying plate 7 near the side of the discharge port 15 close to the expansion plate 30. One end of the expansion electric push rod 31 is hinged to the mounting plate 32, and the other end of the expansion electric push rod 31 is hinged to the bottom of the expansion plate 30. When the expansion electric push rod 31 is fully extended, the expansion plate 30 can fit tightly against one side of the discharge port 15. In this design, when it is necessary to enlarge the discharge port 15, the expansion plate 30 is rotated downward by the retraction of the expansion electric push rod 31, thereby increasing the diameter of the discharge port 15. This, in conjunction with the pressing mechanism 9, can better push large packages of garbage through the discharge port 15 and into the garbage bin.

[0038] A method for conveying waste in an underground waste conveying device specifically includes the following steps:

[0039] Step 1: Select the type of waste to be disposed of through the control interface of the underground station. Then, the electrical control system of the underground station controls the second motor 11 and photoelectric sensor 29 at the corresponding discharge port 15 to start. The second motor 11 drives the drive gear 12 to rotate. Since the drive gear 12 is meshed with the fixed rack 13, the rotation of the drive gear 12 drives the fixed rack 13 to move horizontally along the fixed slide rail 20 through the sliding sleeve 19. The fixed rack 13 drives the sliding floating plate 16 to move horizontally. At the same time, the sliding floating plate 16 overcomes the elastic force of the floating spring 21 and moves slightly downward to make the movement of the sliding floating plate 16 smoother. When the sliding floating plate 16 is fully opened, the second motor 11 stops.

[0040] Step 2: Then the electrical control system of the underground station controls the first motor 2 to start. The first motor 2 drives the active sprocket group 3 to rotate. The active sprocket group 3 drives the driven sprocket group 4 to rotate through the transmission chain 5. The transmission chain 5 drives the conveying scraper 6 to slide along the surface of the fixed conveying plate 7.

[0041] Step 3: Then, the garbage is put into the underground station through the feeding port. The garbage falls onto the fixed conveyor plate 7 and is moved to the open discharge port 15 by the conveying scraper 6. If the garbage is smaller than or equal to the diameter of the discharge port 15, the garbage will fall directly from the discharge port 15 into the garbage bin corresponding to the discharge port 15.

[0042] If the waste is larger than the diameter of the discharge port 15, the conveying scraper 6 continues to move the waste forward. When the photoelectric sensor 29 corresponding to the discharge port 15 senses the waste, the waste is still located at the discharge port 15. The photoelectric sensor 29 transmits an electrical signal to the electronic control system. The electronic control system controls the first motor 2 to stop and simultaneously controls the extension electric push rod 31 to retract. The retraction of the extension electric push rod 31 causes the extension plate 30 to rotate toward the bottom of the fixed conveying plate 7, thereby increasing the diameter of the discharge port 15. Then, the electronic control system controls the third motor 24 to start. The third motor 24 drives the rotating rod 25 to rotate toward the discharge port 15. The rotating rod 25 drives the pressing electric push rod 26 to rotate toward the discharge port 15. When the rotating rod 25 rotates to the designated position, the third motor 24 is controlled to stop. Then, the pressing electric push rod 26 is controlled to extend, causing the silicone pressure plate 27 to extend and press against the waste, which passes through the discharge port 15 and falls into the corresponding waste bin.

[0043] Step 4: When the garbage falls directly from the discharge port 15 into the garbage bin corresponding to the discharge port 15 because the garbage is smaller than or equal to the diameter of the discharge port 15, the electronic control system controls the first motor 2 to stop and simultaneously controls the second motor 11 to start rotating in the opposite direction. Through the drive gear 12 and the fixed rack 13, the sliding floating plate 16 is driven to move horizontally in the opposite direction to the discharge port 15. Due to the upward elastic force of the floating spring 21 on the sliding floating plate 16, the sliding floating plate 16 is tightly attached to the discharge port 15.

[0044] When the electrical control system is activated due to the waste being larger than the diameter of the discharge port 15, the electrical control system controls the photoelectric sensor 29 to turn off and simultaneously controls the pressing electric push rod 26 to retract to its original position. Then, it controls the third motor 24 to start rotating in the opposite direction, driving the rotating rod 25 to rotate to its original position. Then, it controls the third motor 24 to stop and simultaneously controls the extension electric push rod 31 to extend to its original position, driving the extension plate 30 to return to its original position. Then, it controls the second motor 11 to start rotating in the opposite direction, driving the sliding floating plate 16 to move horizontally in the opposite direction to the discharge port 15 through the drive gear 12 and the fixed rack 13. Due to the upward elastic force of the floating spring 21 on the sliding floating plate 16, the sliding floating plate 16 is tightly attached to the discharge port 15.

[0045] One-time garbage disposal completes the process.

[0046] The above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, without departing from the spirit and scope defined by the claims of this application.

Claims

1. A garbage conveying device for a buried station, comprising a support frame (1), a first motor (2), a driving sprocket set (3), a driven sprocket set (4), a transmission chain (5), a conveying scraper (6), a fixed conveying plate (7), a sensing mechanism (8), a material pressing mechanism (9), an expanding mechanism (10), a second motor (11), a driving gear (12), a fixed rack (13), and a floating opening and closing mechanism (14), characterized in that, The support frame (1) is fixedly provided with the driving sprocket group (3) and the driven sprocket group (4) at both ends respectively. The driving sprocket group (3) and the driven sprocket group (4) are connected by a transmission chain (5). The first motor (2) is fixedly provided on one side of the support frame (1), and the output shaft of the first motor (2) is connected to the driving sprocket group (3). The fixed conveying plate (7) is fixedly provided on the upper part of the support frame (1). Multiple conveying scrapers (6) are fixedly provided between the two sets of transmission chains (5). The bottom surface of the conveying scrapers (6) located above the support frame (1) slides in contact with the upper surface of the fixed conveying plate (7). Multiple discharge ports (15) are evenly and equidistantly opened on the fixed conveying plate (7) along its length direction. The expansion mechanism (10) is provided on one side of each discharge port (15). The bottom of the fixed conveyor plate (7) located at each of the pouring ports (15) is provided with a floating opening and closing mechanism (14), and a fixed rack (13) is fixedly provided on each of the floating opening and closing mechanisms (14). The second motor (11) is fixedly installed on one side of the support frame (1) corresponding to each of the pouring ports (15). The output shaft of the second motor (11) is fixedly connected to the drive gear (12). The drive gear (12) meshes with the fixed rack (13) for transmission. A plurality of sensing mechanisms (8) are provided on one side of the support frame (1). The opening positions of the plurality of pouring ports (15) correspond one-to-one with the setting positions of the plurality of sensing mechanisms (8). The pressing mechanism (9) is provided on both sides of the support frame (1) corresponding to the opening position of each pouring port (15). The floating opening and closing mechanism (14) includes a sliding floating plate (16), a U-shaped connecting plate (17), a support rod (18), a sliding sleeve (19), a fixed guide rail (20), and floating springs (21). When the floating opening and closing mechanism (14) is closed, the upper surface of the sliding floating plate (16) is tightly fitted with the corresponding pouring port (15). U-shaped connecting plates (17) are fixedly provided on both sides of the bottom of the sliding floating plate (16), and a support rod (18) is provided below one of the U-shaped connecting plates (17). Multiple floating springs (21) are evenly fixed between the support rod (18) and its corresponding U-shaped connecting plate (17). Below the other U-shaped connecting plate (17), a fixed rack (13) is provided. Multiple floating springs (21) are also uniformly fixed between the fixed rack (13) and its corresponding U-shaped connecting plate (17). The fixed rack (13) meshes with the drive gear (12). Sliding sleeves (19) are fixed at both ends of the fixed rack (13) and the support rod (18) on the side away from the sliding floating plate (16). The sliding sleeves (19) are placed on the fixed guide rail (20). The fixed guide rail (20) is fixed at both sides of the bottom of the fixed conveying plate (7) located at the discharge port (15). The extension mechanism (10) includes an extension plate (30), an extension electric push rod (31), and a mounting plate (32). One side of the extension plate (30) is hinged to one side of the discharge port (15). The mounting plate (32) is vertically fixed at the bottom of the fixed conveying plate (7) near the side of the discharge port (15) close to the extension plate (30). One end of the extension electric push rod (31) is hinged to the mounting plate (32), and the other end of the extension electric push rod (31) is hinged to the bottom of the extension plate (30). When the extension electric push rod (31) is fully extended, the extension plate (30) can fit tightly against one side of the discharge port (15).

2. The underground waste conveying device according to claim 1, characterized in that, The pressing mechanism (9) includes a support plate (22), a fixed base (23), a third motor (24), a rotating rod (25), a pressing electric push rod (26), and a silicone pressing plate (27). The support plate (22) is fixedly mounted on the side wall of the support frame (1), and the position of the support plate (22) corresponds to the middle position of the discharge port (15). The top of the support plate (22) is higher than the upper transmission surface of the transmission chain (5), and a certain material is fixedly mounted on the top of the support plate (22). The fixed base (23) is provided with the third motor (24) fixed on one side. The output shaft of the third motor (24) passes through the fixed base (23) and is connected to the fixed base (23) through a bearing. The output shaft of the third motor (24) is fixedly connected to one end of the rotating rod (25). The other end of the rotating rod (25) is embedded with the pressing electric push rod (26). The extended end of the pressing electric push rod (26) is hinged to the bottom of the silicone pressure plate (27).

3. A waste conveying device for underground stations according to claim 2, characterized in that, The fixed cylinder of the electric push rod (26) extends toward one end of the rotating rod (25), and the extended end of the electric push rod (26) slightly extends beyond the other end of the rotating rod (25).

4. A waste conveying device for underground stations according to claim 1, characterized in that, The sensing mechanism (8) includes a fixed plate (28) and a photoelectric sensor (29). The fixed plate (28) is fixedly mounted on the side wall of the support frame (1). The photoelectric sensor (29) is fixedly mounted on the upper side of the fixed plate (28) near the fixed conveyor plate (7). The installation position of the photoelectric sensor (29) corresponds to the side of the discharge port (15) away from the extension mechanism (10), and the setting height of the photoelectric sensor (29) is higher than the height of the conveying scraper (6).

5. A waste conveying device for underground stations according to claim 1, characterized in that, The inner walls of the two side plates of the two U-shaped connecting plates (17) slide in contact with the two side walls of the support rod (18) and the two side walls of the fixed rack (13), respectively.

6. A waste conveying device for underground stations according to claim 1, characterized in that, The four edges of the discharge port (15) are covered with a rubber layer.

7. A method for conveying waste in a buried waste conveying device according to any one of claims 1-6, characterized in that, Specifically, the following steps are included: Step 1: Select the type of waste to be disposed of through the control interface of the underground station. Then, the electrical control system of the underground station controls the second motor (11) and photoelectric sensor (29) at the corresponding discharge port (15) to start. The second motor (11) drives the drive gear (12) to rotate. Since the drive gear (12) is meshed with the fixed rack (13), the drive gear (12) rotates and drives the fixed rack (13) to move horizontally along the fixed slide rail (20) through the sliding sleeve (19). The fixed rack (13) drives the sliding floating plate (16) to move horizontally. At the same time, the sliding floating plate (16) overcomes the elastic force of the floating spring (21) and moves slightly downward, making the sliding floating plate (16) move more smoothly. When the sliding floating plate (16) is fully opened, the second motor (11) stops. Step 2: Then the electrical control system of the underground station controls the first motor (2) to start. The first motor (2) drives the active sprocket group (3) to rotate. The active sprocket group (3) drives the driven sprocket group (4) to rotate through the transmission chain (5). The transmission chain (5) drives the conveying scraper (6) to slide along the surface of the fixed conveying plate (7). Step 3: Then, the garbage is put into the underground station through the feeding port. The garbage falls onto the fixed conveyor plate (7) and is moved to the open discharge port (15) by the conveying scraper (6). If the garbage is smaller than or equal to the diameter of the discharge port (15), the garbage falls directly from the discharge port (15) into the garbage bin corresponding to the discharge port (15). If the waste is larger than the diameter of the discharge port (15), the conveying scraper (6) continues to move the waste forward. When the photoelectric sensor (29) corresponding to the discharge port (15) senses the waste, the waste is still located at the discharge port (15). The photoelectric sensor (29) transmits an electrical signal to the electronic control system. The electronic control system controls the first motor (2) to stop and simultaneously controls the extension electric push rod (31) to retract. The retraction of the extension electric push rod (31) causes the extension plate (30) to rotate toward the bottom of the fixed conveyor plate (7), thus discharging the waste. The diameter of the opening (15) is increased, and then the electrical control system controls the third motor (24) to start. The third motor (24) drives the rotating rod (25) to rotate toward the discharge port (15). The rotating rod (25) drives the pressing electric push rod (26) to rotate toward the discharge port (15). When the rotating rod (25) rotates to the designated position, the third motor (24) is controlled to stop. Then the pressing electric push rod (26) is controlled to extend, which drives the silicone pressure plate (27) to extend and touch the garbage through the discharge port (15) and fall into the corresponding garbage bin. Step 4: When the garbage falls directly from the discharge port (15) into the garbage bin corresponding to the discharge port (15) because the garbage is smaller than or equal to the diameter of the discharge port (15), the electronic control system controls the first motor (2) to stop and simultaneously controls the second motor (11) to start rotating in the opposite direction. Through the active gear (12) and the fixed rack (13), the sliding floating plate (16) is driven to move horizontally in the opposite direction to the discharge port (15). Due to the upward elastic force of the floating spring (21) on the sliding floating plate (16), the sliding floating plate (16) is tightly attached to the discharge port (15). When the electrical control system starts corresponding control due to the garbage being larger than the diameter of the discharge port (15), the electrical control system controls the photoelectric sensor (29) to turn off and controls the pressing electric push rod (26) to retract to its original position. Then, it controls the third motor (24) to start rotating in the opposite direction, driving the rotating rod (25) to rotate to its original position. Then, it controls the third motor (24) to stop and controls the extension electric push rod (31) to extend to its original position, driving the extension plate (30) to return to its original position. Then, it controls the second motor (11) to start rotating in the opposite direction, driving the sliding floating plate (16) to move horizontally in the opposite direction to the discharge port (15) through the active gear (12) and the fixed rack (13). Due to the upward elastic force of the floating spring (21) on the sliding floating plate (16), the sliding floating plate (16) fits tightly with the discharge port (15). One-time garbage disposal completes the process.

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