A turnover unloading platform for construction engineering

Abstract

This invention relates to the field of construction equipment technology, specifically to a tilting unloading platform for construction engineering, comprising a moving unit and a support frame, on which a hopper is mounted. The hopper is a cylindrical shell structure, horizontally mounted on the support frame, and rotates around its own axis. An opening is formed on the side wall of the hopper; during feeding, the opening faces vertically upwards, and during discharging, the opening faces vertically downwards. A placement groove is formed on the side wall at one end of the hopper's interior, and a cleaning unit is installed within the placement groove. The cleaning unit includes multiple scrapers that move radially along the hopper's axis, evenly distributed within the placement groove. The cleaning unit also includes a rotating unit for driving the scrapers to rotate around the hopper's axis within the hopper. A driving unit is located at the top of the hopper for driving the scrapers to move along the hopper's axis within the hopper. This invention achieves automatic cleaning of the hopper.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, specifically to a tilting unloading platform for construction engineering. Background Technology

[0002] Construction unloading platforms are essential equipment in building construction, primarily used for material turnover. When constructing high-rise buildings, after the completion of a floor, the construction tools and materials from that floor need to be transferred to the next floor via the unloading platform. However, existing hoppers cannot rotate more than 90 degrees, resulting in some residual material remaining in the hoppers, requiring manual cleaning by workers.

[0003] Chinese Patent Publication No. CN118668940B discloses a construction unloading platform with a tilting function, including a track-changing tilting mechanism. The track-changing tilting mechanism includes a moving platform, a longitudinal transfer frame, tracks, a threaded rod I, a threaded rod drive component I, a rotating rod, a rotating rod drive component, a hopper, a support arm, a blocking plate, and a rotating tube. Two tracks are longitudinally arranged on both sides of the moving platform. Two longitudinal transfer frames are located on both sides of the moving platform and slide longitudinally along the two tracks respectively. The threaded rod I passes through the moving platform and the longitudinal transfer frame, and is threadedly connected to the moving platform. The threaded rod I is driven to rotate by the threaded rod drive component I; the hopper is movably mounted on the moving platform, and support arms are fixed on both sides of the hopper; the rotating tube passes through the moving platform and the support arms, and is rotatably connected to the moving platform and fixedly connected to the support arms; the rotating rod passes through the longitudinal frame and the rotating tube, and is axially slidably connected to the rotating tube, and is circumferentially limited by a limit on the rotating rod and the rotating tube, and is driven to rotate by the rotating rod drive component; two baffles are fixedly mounted on the moving platform, located below the two support arms respectively, to limit the rotation angle of the support arms from exceeding 90 degrees.

[0004] While the above solution enables the hopper to rotate more than 90 degrees, the single pivot point makes it prone to breakage during use. Furthermore, although the hopper can rotate more than 90 degrees, its rectangular structure and lack of a corresponding cleaning unit mean that residual material may accumulate inside after prolonged use. Additionally, the exposed screw driving the mobile platform makes it susceptible to damage from falling construction materials, which can hinder its movement. Summary of the Invention

[0005] To address the aforementioned problems, a tilting unloading platform for construction engineering is provided. This platform features a cylindrical hopper with an automatic cleaning unit inside. After unloading, some residual material remains in the hopper. The cleaning unit then operates. First, a drive unit moves scrapers out of the placement slot along the hopper's axis. Then, all scrapers arranged around the hopper's axis move synchronously along the hopper's radial direction, extending outwards. The scrapers stop moving after contacting the hopper's inner wall. Next, a rotation unit drives all scrapers to rotate around the hopper's axis, while the drive unit continues to move the scrapers along the hopper's axis. This creates a sweeping area at the scraper's end facing the hopper's inner wall during rotation, completely covering the inner wall. The scrapers then scrape away the residual material adhering to the hopper during rotation.

[0006] To address the problems of existing technologies, this invention provides a tilting unloading platform for construction engineering, comprising a moving unit and a support mounted on the moving unit. The support is equipped with a hopper for receiving building materials. The hopper has a cylindrical shell structure and is horizontally mounted on the support, rotating around its own axis. An opening is formed on the side wall of the hopper; during feeding, the opening faces vertically upwards, and during discharging, the opening faces vertically downwards. A placement groove is formed on the side wall at one end inside the hopper, and a cleaning unit is installed within the placement groove. The cleaning unit includes a material handling mechanism. The cleaning unit includes a scraper that moves radially in the hopper. Multiple scrapers are arranged evenly around the axis of the hopper in the placement trough. The cleaning unit also includes a rotating unit for driving the scrapers to rotate around the axis of the hopper inside the hopper. A drive unit is provided at the top of the hopper for driving the scrapers to move along the axis of the hopper inside the hopper. After the hopper discharges material, the scrapers move out of the placement trough along the axis of the hopper. Then the scrapers move radially in the hopper and contact the inner wall of the hopper. The sweeping area formed by the end of the scraper facing the inner wall of the hopper completely covers the inner wall of the hopper.

[0007] Preferably, the cleaning unit further includes a cover set inside the hopper along the axis of the hopper, a rotating disk rotatably set inside the cover, a telescopic groove is formed on the rotating disk along the radial direction of the rotating disk, multiple telescopic grooves are formed and evenly distributed around the axis of the rotating disk, a scraper is slidably set in the telescopic groove along the extension direction of the telescopic groove, and a telescopic unit is provided at the end of the rotating disk to traction the scraper to move in the telescopic groove.

[0008] Preferably, the telescopic unit includes a guide plate fixedly installed in the cover along the axis of the hopper. The guide plate is located at one end of the rotating disk. Multiple inclined grooves are evenly arranged around the axis of the guide plate. The inclined grooves, scrapers and telescopic grooves correspond one-to-one. There is an angle between the extension direction of the inclined groove and the extension direction of the telescopic groove. A push block is moved in the telescopic groove along the extension direction of the telescopic groove. The push block extends into the inclined groove and slides with the inclined groove. A spring is provided between the push block and the scraper. The two ends of the spring are fixedly connected to the push block and the scraper, respectively. When the rotating disk rotates, the inclined groove guides the push block to move.

[0009] Preferably, a first toothed ring is fixedly provided at the end of the rotating disk away from the guide disk, a first gear is meshed on one side of the first toothed ring, and a first rotary driver for driving the first gear to rotate is provided at the end of the first gear. The first rotary driver is fixedly provided on the cover.

[0010] Preferably, the rotating unit includes a second toothed ring fixedly sleeved on the outside of the housing, a second gear meshing on one side of the second toothed ring, and a second rotary driver for driving the second gear to rotate at the end of the second gear.

[0011] Preferably, the drive unit includes a threaded rod disposed on one side of the hopper along the axial direction of the hopper, a movable plate fixedly disposed at one end of the cover, the threaded rod passing through the movable plate and threadedly engaging with the movable plate, and a third rotary driver disposed at the end of the threaded rod for driving the threaded rod to rotate.

[0012] Preferably, a bellows is fitted over the outside of the threaded rod.

[0013] Preferably, a tilting unit is provided at the end of the hopper to drive the hopper to rotate around its own axis. The tilting unit includes a third toothed ring fixedly disposed at the end of the hopper. A third gear is meshed on one side of the third toothed ring. A fourth rotary driver for driving the third gear to rotate is provided at the end of the third gear. The diameter of the third gear is smaller than the outer diameter of the third toothed ring.

[0014] Preferably, a cleaning plate is provided at the end of the hopper on the opposite side of the placement trough. The cleaning plate rotates around the axis of the hopper, and the sweeping area formed when the cleaning plate rotates coincides with and is equal in size to the cross-sectional area in the vertical direction of the hopper.

[0015] Preferably, the end of the scraper facing the inner wall of the hopper has a chamfer.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention sets the hopper as a cylindrical shell structure and sets up a cleaning unit inside the hopper for automatic cleaning. After unloading, some residual material will still adhere to the inside of the hopper. The cleaning unit inside the hopper will then start to operate. First, the drive unit drives the scraper to move out of the placement slot along the axial direction of the hopper. Then, all the scrapers arranged around the axial direction of the hopper move synchronously along the radial direction of the hopper. The scrapers extend outward along the radial direction of the hopper and stop moving after contacting the inner wall of the hopper. Then, the rotation unit drives all the scrapers to rotate around the axial direction of the hopper. At the same time, the drive unit continues to drive the scrapers to move along the axial direction of the hopper, so that the end of the scraper facing the inner wall of the hopper forms a sweeping area during the rotation. The sweeping area completely covers the inner wall of the hopper. During the rotation, the scraper can scrape out the residual material attached to the hopper, thereby realizing the automatic cleaning of the hopper.

[0018] 2. By setting up a cover, and setting up a rotating disk and a guide disk inside the cover for placing the scraper, the rotating disk rotates relative to the guide disk when it rotates. The pushing block slides in the telescopic groove under the traction of the inclined groove. The pushing block pushes the scraper out along the extension direction of the telescopic groove through the spring, so that the scraper contacts the inner wall of the hopper. At the same time, the scraper has a chamfer facing the inner wall of the hopper to ensure that the scraper can retract into the hopper by itself after extending through the hopper opening, avoiding the situation where the scraper gets stuck at the hopper opening and cannot rotate.

[0019] 3. A cleaning plate is provided at the end of the hopper on the opposite side of the placement trough, and the cleaning plate rotates around the axis of the hopper so that the cleaning plate can clean the residual material attached to the end face of the moving plate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a tilting unloading platform for building construction according to the present invention.

[0021] Figure 2 This is a cross-sectional three-dimensional schematic diagram of a tilting unloading platform for building construction according to the present invention.

[0022] Figure 3 This invention relates to a tilting unloading platform for building construction. Figure 2 A magnified view of a portion of point A in the middle.

[0023] Figure 4 This is a three-dimensional schematic diagram of a tilting unloading platform for building construction according to the present invention, after the removal of the moving unit.

[0024] Figure 5 This invention relates to a tilting unloading platform for building construction. Figure 4 A magnified view of a portion of point B in the middle.

[0025] Figure 6 This is a three-dimensional schematic diagram of a tilting unloading platform for construction engineering of the present invention after the removal of the moving unit and the hopper.

[0026] Figure 7 This invention relates to a tilting unloading platform for building construction. Figure 6 A magnified view of a portion of point C.

[0027] Figure 8 This is a three-dimensional schematic diagram of the cleaning unit of a tilting unloading platform for construction engineering according to the present invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of the cleaning unit of a tilting unloading platform for construction engineering after the cover has been removed, according to the present invention.

[0029] Figure 10 This is a three-dimensional schematic diagram of the cleaning unit of a tilting unloading platform for construction engineering after the cover and guide plate have been removed.

[0030] The numbers on the map are:

[0031] 1. Moving unit; 2. Support; 3. Hopper; 31. Opening; 32. Placement slot; 4. Cleaning unit; 41. Scraper; 42. Drive unit; 421. Threaded rod; 422. Moving plate; 423. Third rotary actuator; 424. Bellows; 43. Rotating unit; 431. Second rotary actuator; 432. Second gear; 433. Second gear ring; 44. Telescopic unit; 441. Guide plate; 442. Inclined slot; 443. Push block; 444. Spring; 45. Rotating disk; 451. First gear ring; 452. First gear; 453. First rotary actuator; 46. Telescopic slot; 47. Cover; 5. Tilting unit; 51. Fourth rotary actuator; 52. Third gear ring; 53. Third gear; 6. Cleaning plate; 61. Fifth rotary actuator. Detailed Implementation

[0032] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1 , Figure 2 and Figures 4-6A tilting unloading platform for construction engineering includes a moving unit 1 and a support 2 mounted on the moving unit 1. The support 2 is equipped with a hopper 3 for receiving construction materials. The hopper 3 is a cylindrical shell structure, horizontally mounted on the support 2, and rotates around its own axis. An opening 31 is provided on the side wall of the hopper 3; during feeding, the opening 31 faces vertically upwards, and during discharging, the opening 31 faces vertically downwards. A placement groove 32 is provided on the side wall at one end inside the hopper 3, and a cleaning unit 4 is provided within the placement groove 32. The cleaning unit 4 includes a scraper 41 that moves radially along the hopper 3. Multiple scrapers 41 are provided, and the scrapers 41 are evenly arranged in the placement groove 32 around the axis of the hopper 3. The cleaning unit 4 also includes a rotating unit 43 for driving the scrapers 41 to rotate around the axis of the hopper 3 in the hopper 3. A driving unit 42 is provided at the upper part of the hopper 3 for driving the scrapers 41 to move in the hopper 3 along the axial direction of the hopper 3. After the hopper 3 is unloaded, the scrapers 41 move out of the placement groove 32 along the axial direction of the hopper 3. Then the scrapers 41 move in the radial direction of the hopper 3 and contact the inner wall of the hopper 3. The sweeping area formed by the end of the scraper 41 facing the inner wall of the hopper 3 completely covers the inner wall of the hopper 3.

[0034] In existing construction unloading platforms, the hoppers 3 used to receive materials are mostly rectangular in structure. Furthermore, the materials in the hoppers tend to stick together during transport, meaning that some material remains in the hoppers even after they have been emptied. With prolonged use, even if the hoppers can rotate more than 90 degrees, the amount of material accumulating inside them increases, gradually reducing the amount of material they can hold at a time. Cleaning the hoppers after each unloading operation would avoid these problems, but existing cleaning methods require manual intervention, are labor-intensive, and the rectangular shape of the hoppers makes it difficult to clean the corners thoroughly.

[0035] To avoid the above situation and enable hopper 3 to be automatically cleaned after each unloading, thereby reducing the workload of workers during cleaning, the shape of hopper 3 was improved, and a cleaning unit 4 was installed inside hopper 3. The specific structure and working process of cleaning unit 4 are as follows:

[0036] The hopper 3 is mounted on the support 2. A moving unit 1, preferably a dustproof slide, is located at the lower part of the support 2 to drive it horizontally. In use, the hopper 3 is positioned at one end of the moving unit 1, with its opening 31 facing vertically upwards. Material to be transported is fed into the hopper 3 through the opening 31. When the hopper 3 is full, the moving unit 1, via the support 2, drives the hopper 3 to the other end for unloading. During unloading, the hopper 3 rotates 180 degrees around its own axis, thus changing the opening 31 from a vertically upward position to a vertically downward position, achieving unloading. However, after unloading, some residual material remains inside the hopper 3, at which point the cleaning unit 4 inside the hopper 3 begins operation. First, the drive unit 42 drives the scraper 41 to move out of the placement slot 32 along the axial direction of the hopper 3. Then, all the scrapers 41 arranged around the axial direction of the hopper 3 move synchronously along the radial direction of the hopper 3. The scrapers 41 extend outward along the radial direction of the hopper 3 and stop moving after contacting the inner wall of the hopper 3. Then, the rotation unit 43 drives all the scrapers 41 to rotate around the axis of the hopper 3. At the same time, the drive unit 42 continues to drive the scrapers 41 to move along the axial direction of the hopper 3, so that the end of the scraper 41 facing the inner wall of the hopper 3 forms a sweeping area during the rotation. The sweeping area completely covers the inner wall of the hopper 3. During the rotation, the scrapers 41 can scrape out the residual material attached to the hopper 3, thereby realizing the automatic cleaning of the hopper 3.

[0037] It is worth noting that the moving speed of the scraper 41 driven by the drive unit 42 along the axial direction of the hopper 3 needs to match the speed of the scraper 41 driven by the rotating unit 43 to rotate around the axis of the hopper 3. That is, in the time it takes for the scraper 41 to complete one revolution around the axis of the hopper 3, the distance that the scraper 41 driven by the drive unit 42 moves needs to be less than the width of the scraper 41 in the axial direction of the hopper 3. Only in this way can the sweeping area formed by the end of the scraper 41 facing the inner wall of the hopper 3 completely cover the inner wall of the hopper 3.

[0038] Reference Figure 3 , Figure 6 and Figure 10 The cleaning unit 4 also includes a cover 47 disposed inside the hopper 3 along the axis of the hopper 3. A rotating disk 45 is rotatably disposed inside the cover 47. A telescopic groove 46 is formed on the rotating disk 45 along the radial direction of the rotating disk 45. Multiple telescopic grooves 46 are formed and evenly distributed around the axis of the rotating disk 45. A scraper 41 is slidably disposed in the telescopic groove 46 along the extension direction of the telescopic groove 46. A telescopic unit 44 is provided at the end of the rotating disk 45 to traction the scraper 41 to move within the telescopic groove 46.

[0039] Reference Figure 9 and Figure 10The telescopic unit 44 includes a guide plate 441 fixedly installed in the cover 47 along the axis of the hopper 3. The guide plate 441 is located at one end of the rotating disk 45. Multiple inclined grooves 442 are evenly arranged around the axis of the guide plate 441. The inclined grooves 442, scraper 41 and telescopic grooves 46 correspond one-to-one. There is an angle between the extension direction of the inclined grooves 442 and the extension direction of the telescopic grooves 46. A push block 443 is movably arranged in the telescopic grooves 46 along the extension direction of the telescopic grooves 46. The push block 443 extends into the inclined grooves 442 and slides in cooperation with the inclined grooves 442. A spring 444 is arranged between the push block 443 and the scraper 41. The two ends of the spring 444 are fixedly connected to the push block 443 and the scraper 41 respectively. When the rotating disk 45 rotates, the inclined grooves 442 guide the push block 443 to move.

[0040] Reference Figure 8 A first gear ring 451 is fixedly provided at the end of the rotating disk 45 away from the guide disk 441. A first gear 452 is meshed on one side of the first gear ring 451. A first rotary driver 453 for driving the first gear 452 to rotate is provided at the end of the first gear 452. The first rotary driver 453 is fixedly provided on the cover 47.

[0041] The first rotary actuator 453 is preferably a servo motor. The first rotary actuator 453 drives the first gear ring 451 to rotate via the first gear 452, causing the rotating disk 45 to rotate. The guide disk 441 located at the end of the rotating disk 45 does not rotate. Thus, the rotating disk 45 and the guide disk 441 rotate relative to each other. Under the guidance of the inclined groove 442, the push block 443 extending into the inclined groove 442 can be pulled by the inclined groove 442 and move within the telescopic groove 46. Before the first rotary actuator 453 operates, the drive unit 42 first drives the cover 47 to slide out of the placement groove 32. Then the first rotary actuator 453 starts. After the push block 443 pushes the scraper 41 to rotate out via the spring 444, the scraper 41 can contact the inner wall of the hopper 3.

[0042] Reference Figure 7 and Figure 8 The rotating unit 43 includes a second gear ring 433 fixedly sleeved on the outside of the cover 47, a second gear 432 meshing on one side of the second gear ring 433, and a second rotary driver 431 for driving the second gear 432 to rotate is provided at the end of the second gear 432.

[0043] The second rotary drive 431 is preferably a servo motor. When the scraper 41 extends out of the rotating disk 45, the second rotary drive 431 is started. The second rotary drive 431 drives the second gear ring 433 to rotate through the second gear 432, thereby causing the cover 47, which is fixedly connected to the second gear ring 433, to start rotating. The rotating disk 45 located inside the cover 47 stops rotating relative to the guide disk 441 after the scraper 41 extends. The rotating disk 45 rotates synchronously with the cover 47. Thus, the scraper 41 set on the rotating disk 45 can rotate synchronously with the cover 47. During the rotation, the scraper 41 scrapes off the residual material attached to the inner wall of the hopper 3. It is worth noting that, since a spring 444 is provided between the push block 443 and the scraper 41, when the scraper 41 passes through the opening 31 of the hopper 3, the scraper 41 protrudes a part from the opening 31. In order to ensure that the protruding scraper 41 can retract smoothly, a chamfer is provided at the end of the scraper 41 so that the scraper 41 can retract more quickly after passing through the opening 31 of the hopper 3.

[0044] Reference Figure 7 The drive unit 42 includes a threaded rod 421 arranged on one side of the hopper 3 along the axial direction of the hopper 3. A movable plate 422 is fixedly arranged at one end of the cover 47. The threaded rod 421 passes through the movable plate 422 and is threadedly engaged with the movable plate 422. A third rotary driver 423 for driving the threaded rod 421 to rotate is arranged at the end of the threaded rod 421.

[0045] Reference Figure 2 A bellows 424 is fitted over the threaded rod 421.

[0046] The third rotary drive 423 is preferably a servo motor. When the third rotary drive 423 is started, it drives the moving plate 422 to move along the axis of the hopper 3 via the threaded rod 421. Since the cover 47 is fixedly mounted on the moving plate 422, the cover 47 can move synchronously when the moving plate 422 moves. Because the threaded rod 421 has threads on its upper part, when the opening 31 of the hopper 3 faces upward, some material will fall onto the threaded rod 421 during the loading operation of the hopper 3, causing the material to block the threads on the threaded rod 421, thus preventing the moving plate 422 from moving smoothly. To avoid this situation, a bellows 424 is sleeved on the outside of the threaded rod 421. The two ends of the bellows 424 are fixedly connected to one end of the hopper 3 and the moving plate 422, respectively. When the moving plate 422 moves, the bellows 424 extends and retracts synchronously. Material falling from the outside can only fall onto the bellows 424, ensuring the cleanliness of the surface of the threaded rod 421.

[0047] Reference Figure 4 and Figure 6A flipping unit 5 is provided at the end of the hopper 3 to drive the hopper 3 to rotate around its own axis. The flipping unit 5 includes a third toothed ring 52 fixedly provided at the end of the hopper 3. A third gear 53 is meshed on one side of the third toothed ring 52. A fourth rotary driver 51 for driving the third gear 53 to rotate is provided at the end of the third gear 53. The diameter of the third gear 53 is smaller than the outer diameter of the third toothed ring 52.

[0048] The fourth rotary drive 51 is preferably a servo motor. Since the hopper 3, which carries the material, is relatively heavy, the hopper 3 experiences a large force at its turning point when it is turned. However, the hopper 3 in this invention has a cylindrical shell structure. When the hopper 3 rotates, the material inside the hopper 3 will also tumble. Furthermore, since the diameter of the third gear 53 is smaller than the outer diameter of the third gear ring 52, the hopper 3 in this invention will not experience a situation where the hopper 3 is subjected to force on one side when unloading, thus ensuring that the turning point of the hopper 3 will not break when it is turned.

[0049] Reference Figure 2 A cleaning plate 6 is provided at the end of the hopper 3 on the opposite side of the placement groove 32. The cleaning plate 6 rotates around the axis of the hopper 3. The sweeping area formed when the cleaning plate 6 rotates coincides with and is equal in size to the cross-sectional area in the vertical direction of the hopper 3.

[0050] A fifth rotary driver 61 is provided at one end of the cleaning plate 6 to drive the cleaning plate 6 to rotate. The fifth rotary driver 61 is preferably a servo motor. When the drive unit 42 drives the moving plate 422 to move to the end of the hopper 3 where the cleaning plate 6 is located, the fifth rotary driver 61 starts to run, and the cleaning plate 6 scrapes and cleans all the residual material attached to the end face of the moving plate 422.

[0051] Reference Figures 1-10 The scraper 41 has a chamfer at the end facing the inner wall of the hopper 3.

[0052] Working principle: During use, hopper 3 is located at one end of moving unit 1, with opening 31 on hopper 3 facing vertically upwards. The material to be transported is fed into hopper 3 through opening 31. When hopper 3 is full, moving unit 1 drives hopper 3 to move to the other end of moving unit 1 via bracket 2 for unloading. During unloading, hopper 3 rotates 180 degrees around its own axis, thus changing the opening 31 on hopper 3 from a vertically upward state to a vertically downward state, thereby achieving unloading. However, after unloading, some residual material will still adhere to the inside of hopper 3, at which point cleaning unit 4 located inside hopper 3 will start operating. First, the drive unit 42 drives the scraper 41 to move out of the placement slot 32 along the axial direction of the hopper 3. Then, all the scrapers 41 arranged around the axial direction of the hopper 3 move synchronously along the radial direction of the hopper 3. The scrapers 41 extend outward along the radial direction of the hopper 3 and stop moving after contacting the inner wall of the hopper 3. Then, the rotation unit 43 drives all the scrapers 41 to rotate around the axis of the hopper 3. At the same time, the drive unit 42 continues to drive the scrapers 41 to move along the axial direction of the hopper 3, so that the end of the scraper 41 facing the inner wall of the hopper 3 forms a sweeping area during the rotation. The sweeping area completely covers the inner wall of the hopper 3. During the rotation, the scrapers 41 can scrape out the residual material attached to the hopper 3, thereby realizing the automatic cleaning of the hopper 3.

[0053] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A construction engineering construction turnover unloading platform, comprising a mobile unit (1) and a support (2) arranged on the mobile unit (1), and a hopper (3) arranged on the support (2) for receiving construction materials; characterized in that The hopper (3) is a cylindrical shell structure, the hopper (3) arranged horizontally on the support (2) rotates around the axis of the hopper (3) itself, an opening (31) is formed on the side wall of the hopper (3), when feeding, the opening (31) is arranged vertically upward, when discharging, the opening (31) is arranged vertically downward, a placing groove (32) is formed on the side wall of one end inside the hopper (3), a cleaning unit (4) is arranged in the placing groove (32), the cleaning unit (4) comprises a scraper (41) moving in the radial direction of the hopper (3), the scraper (41) is arranged in multiple, the scraper (41) is uniformly arranged in the placing groove (32) around the axis of the hopper (3), the cleaning unit (4) further comprises a rotating unit (43) for driving the scraper (41) to rotate in the hopper (3) around the axis of the hopper (3), a driving unit (42) is arranged on the upper part of the hopper (3) for driving the scraper (41) to move in the hopper (3) along the axis direction of the hopper (3), after the hopper (3) is unloaded, the scraper (41) moves out of the placing groove (32) along the axis direction of the hopper (3), then the scraper (41) moves along the radial direction of the hopper (3) and contacts with the inner wall of the hopper (3), the sweeping area formed by one end of the scraper (41) towards the inner wall of the hopper (3) completely covers the inner wall of the hopper (3); The cleaning unit (4) further comprises a cover shell (47) arranged in the hopper (3) along the axis of the hopper (3), a rotating disc (45) is rotatably arranged in the cover shell (47), an expansion slot (46) is formed on the rotating disc (45) along the radial direction of the rotating disc (45), the expansion slot (46) is formed in multiple and uniformly distributed on the rotating disc (45) around the axis of the rotating disc (45), the scraper (41) is slidingly arranged in the expansion slot (46) along the extension direction of the expansion slot (46), an expansion unit (44) is arranged on the end of the rotating disc (45) for driving the scraper (41) to move in the expansion slot (46). The telescopic unit (44) comprises a guide disc (441) fixedly arranged in the cover (47) along the axis of the hopper (3), the guide disc (441) is located at one end of the rotating disc (45), a plurality of inclined grooves (442) are uniformly arranged on the guide disc (441) around the axis of the guide disc (441), the inclined grooves (442), the scraper (41) and the telescopic groove (46) are one-to-one corresponding, there is an included angle between the extension direction of the inclined groove (442) and the telescopic direction of the telescopic groove (46), a push block (443) is movably arranged in the telescopic groove (46) along the extension direction of the telescopic groove (46), the push block (443) extends into the inclined groove (442) and is in sliding fit with the inclined groove (442), a spring (444) is arranged between the push block (443) and the scraper (41), and the two ends of the spring (444) are fixedly connected with the push block (443) and the scraper (41) respectively; when the rotating disc (45) rotates, the inclined groove (442) guides the push block (443) to move.

2. A swing-away debris platform for construction work according to claim 1 wherein, A first gear ring (451) is fixedly arranged at the end of the rotating disc (45) away from the guide disc (441), a first gear (452) is engaged on one side of the first gear ring (451), a first rotary driver (453) for driving the first gear (452) to rotate is arranged at the end of the first gear (452), and the first rotary driver (453) is fixedly arranged on the cover (47).

3. A reverse discharge platform for construction work according to claim 1, characterised in that, The rotating unit (43) comprises a second gear ring (433) fixedly sleeved outside the cover (47), a second gear (432) is engaged on one side of the second gear ring (433), and a second rotary driver (431) for driving the second gear (432) to rotate is arranged at the end of the second gear (432).

4. A swing-away debris platform for construction work according to claim 1 wherein, The driving unit (42) comprises a threaded rod (421) arranged on one side of the hopper (3) along the axis direction of the hopper (3), a moving plate (422) is fixedly arranged at one end of the cover (47), the threaded rod (421) penetrates through the moving plate (422) and is in threaded fit with the moving plate (422), and a third rotary driver (423) for driving the threaded rod (421) to rotate is arranged at the end of the threaded rod (421).

5. A swing-away debris platform for construction work according to claim 4 wherein, A bellows (424) is sleeved outside the threaded rod (421).

6. A swing-away debris platform for construction work according to claim 1 wherein, A turnover unit (5) for driving the hopper (3) to rotate around the axis of the hopper (3) itself is arranged at the end of the hopper (3), the turnover unit (5) comprises a third gear ring (52) fixedly arranged at the end of the hopper (3), a third gear (53) is engaged on one side of the third gear ring (52), a fourth rotary driver (51) for driving the third gear (53) to rotate is arranged at the end of the third gear (53), and the diameter of the third gear (53) is smaller than the outer diameter of the third gear ring (52).

7. A swing-away debris platform for construction work according to claim 1 wherein, A cleaning plate (6) is arranged at the end of the hopper (3) on the side opposite to the placing groove (32), the cleaning plate (6) rotates around the axis of the hopper (3), and the sweeping area formed when the cleaning plate (6) rotates is coincident with and equal in size to the sectional area of the hopper (3) in the vertical direction.

8. A swing-away debris platform for construction work according to claim 1 wherein, The end of the scraper (41) towards the inner wall of the hopper (3) is chamfered.

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