Building waste recycling device

Abstract

The invention discloses a building waste recovery treatment device, and relates to the technical field of waste treatment, the building waste recovery treatment device comprises a base, a crushing cavity and a crushing roller, a dust collection box is rotatably mounted at the upper part in the crushing cavity, a first gear is fixedly mounted on a rotating shaft of the dust collection box, and a first telescopic cavity and a second telescopic cavity are symmetrically and fixedly mounted on the left and right side walls of the crushing cavity; the end faces, away from the crushing cavity, of the two first telescopic cavities and the second telescopic cavity are fixedly provided with protective covers correspondingly, sliding blocks are slidably arranged in the two first telescopic cavities and the second telescopic cavity in a sleeved mode correspondingly, a driving motor drives a gear set, crushing of the crushing rollers and intermittent reverse rotation dust collection of the dust collection box are synchronously achieved, and the sliding blocks in the telescopic cavities are further driven to move in a reciprocating mode. Waste screening, dust filtering and collecting and screen self-cleaning are completed in a linkage mode, concentrated dust pumping and discharging are achieved in cooperation with movement linkage of an exhaust fan and a telescopic cavity, and a dust suction box is further provided with a self-cleaning assembly for preventing blockage; the problems that due to dust prevention of an existing device, waste cannot be continuously conveyed, and the treatment efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of waste treatment technology, specifically to a construction waste recycling and treatment device. Background Technology

[0002] Construction waste typically includes bricks, concrete blocks, wood, plastics, metals, glass, cardboard, plasterboard, paint waste, and so on. This construction waste is collected together, sorted, and then the sorted resources are reused or processed.

[0003] Chinese patent with publication number CN118142626A discloses a device and process for treating construction waste. However, the disclosed solution has the following shortcomings: the inlet is sealed to prevent dust, which means that construction waste can only be transported in batches for crushing at a time, and then the inlet is opened to transport another batch for crushing. The waste cannot be continuously transported, which is inconvenient to use and reduces the efficiency of crushing and processing.

[0004] In addition to the aforementioned technical defects in enclosed dust prevention, existing construction waste recycling and processing devices also suffer from many common industry problems in dust removal and supporting structures: First, some devices use fixed dust suction ports, which have a limited suction range and cannot cover the entire crushing chamber, resulting in dust dead zones at the edges and corners of the crushing chamber and gaps between crushing rollers. Dust accumulates and is easily diffused again during crushing operations, polluting the working environment. Second, the dust suction, crushing, and screening actuators are mostly independently driven, requiring multiple power sources. This not only increases the manufacturing cost and operating energy consumption of the equipment, but also causes dust removal to lag behind crushing and screening to jam, affecting dust removal, due to the asynchronous operation of each mechanism. Overall, the linkage is poor. Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a construction waste recycling and processing device, comprising a base, a crushing chamber fixedly installed on the upper surface of the base, two crushing rollers rotatably installed inside the lower part of the crushing chamber, a dust collection box rotatably installed inside the upper part of the crushing chamber, a rotating shaft of the dust collection box passing through the crushing chamber and a first gear fixedly installed on the shaft body, two sets of drive motors respectively driving the two crushing rollers to rotate fixedly installed on the upper surface of the base, two exhaust fans symmetrically fixedly installed on the upper surface of the base, each of the two exhaust fans being fixedly installed with a first exhaust pipe rotatably connected to the dust collection box in a sealed manner, a second gear fixedly installed on the drive shaft of the left drive motor, and a gear set meshing with the second gear and the first gear being rotatably installed on the end face of the crushing chamber facing the drive motor.

[0006] Preferably, two first telescopic chambers and one second telescopic chamber are symmetrically fixedly installed on the left and right sidewalls of the crushing chamber. Screens are fixedly installed on the end faces of the first and second telescopic chambers facing the crushing chamber. Protective covers are fixedly installed on the end faces of the two first and second telescopic chambers away from the crushing chamber. Sliding blocks are slidably arranged in both the first and second telescopic chambers. First slides are symmetrically opened on the front and rear inner sidewalls of the crushing chamber, located between the crushing roller and the dust collection box. Second slides are symmetrically opened on the front and rear inner sidewalls of the crushing chamber below the first slides. A third slide is opened at the partition plate between the first and second slides, connecting the first and second slides. Connecting plates are slidably installed on both the first and second slides. The left and right ends of the connecting plates are fixedly installed with the sliding blocks. A first square rod fixedly connected to the connecting plate is slidably installed in the third slide. A first cavity is opened in the sliding block. An air hole is opened at the end of the sliding block facing the protective cover.

[0007] Preferably, the gear set includes a third gear rotatably mounted to the end face of the crushing chamber facing the drive motor and meshing with a second gear; a fourth gear rotatably mounted to the end face of the crushing chamber facing the drive motor and meshing with the third gear; a fifth gear and a sixth gear rotatably mounted to the outer wall of the crushing chamber above the fourth gear; the fifth gear meshing with a first gear on the left; the sixth gear meshing with a first gear on the right; the fifth gear meshing with the fourth gear; a seventh gear fixedly mounted on the end face of the fifth gear away from the crushing chamber; the seventh gear being a half gear; and an eighth gear fixedly mounted on the end face of the sixth gear away from the crushing chamber and meshing with the seventh gear.

[0008] Preferably, a fourth slide is provided in the first slide near the fourth gear, and a slider integrally fixed to the connecting plate is slidably provided in the fourth slide. A fifth slide is provided on the end face of the slider facing the fourth gear, which is arranged in the vertical direction. A cylinder that slides in the fifth slide is eccentrically fixed on the end face of the fourth gear facing the crushing chamber. The end face of the slider away from the fourth gear is fixedly connected to the connecting plate.

[0009] Preferably, a second cavity is provided below the first cavity in the sliding block, and a sixth slide rail is symmetrically provided at one end of the sliding block facing the protective cover. A first square hole is provided in the partition plate between the first cavity and the second cavity. A limit plate is fixedly installed on the end face of the second cavity near the first square hole, and a filter screen is rotatably installed on the end face of the first square hole away from the crushing chamber.

[0010] Preferably, the rotating shaft of the filter extends into the sixth slide rail, and a ninth gear is fixedly sleeved on the outer surface of the rotating shaft of the filter. The rotating shaft of the filter has a first slot and a second slot. A limiting block is slidably installed in the sixth slide rail. A Y-shaped slide rail penetrating the upper and lower end faces of the limiting block is opened in the limiting block. A Y-shaped slider is slidably installed in the Y-shaped slide rail and the Y-shaped slider is elastically connected to the limiting block by a spring. The lower end face of the Y-shaped slider is a sharp corner. A rack that meshes with the ninth gear is fixedly installed on the upper end face of the limiting block. The lower inner end faces of the first telescopic cavity and the second telescopic cavity have a third slot adapted to the Y-shaped slider near the protective cover and a fourth slot adapted to the Y-shaped slider away from the protective cover.

[0011] Preferably, a cleaning rod is slidably disposed within the first cavity. A long rod is symmetrically disposed at the end of the cleaning rod facing the protective cover. Square openings are symmetrically formed at the ends of the first and second telescopic cavities facing the protective cover. The long rod slides through a sliding block and within the square openings. A first groove is formed on the lower end face of the long rod. An inclined block is slidably installed within the first groove. The inclined block and the long rod are elastically connected by a spring. A second groove adapted to the inclined block is formed in the square opening. A second square rod is symmetrically disposed within the first cavity. A seventh slide rail is formed within the second square rod. A second square hole, smaller than the seventh slide rail, is formed at the end of the second square rod facing the cleaning rod. A U-shaped block is fitted within the second square hole. The second square rod and the U-shaped block are elastically connected by a spring. The end face of the U-shaped block facing the cleaning rod is fixedly connected to the cleaning rod. A first square plate that slides within the seventh slide rail is fixedly installed on the end face of the U-shaped block facing the second square rod.

[0012] Preferably, the second cavity has a dust outlet on its end face facing the protective cover, a second square plate is slidably disposed inside the second cavity, the second square plate and the second cavity are elastically connected by a spring, a first round rod extending out of the second cavity from the dust outlet is fixedly installed on the end face of the second square plate facing the protective cover, the first telescopic cavity and the second telescopic cavity have exhaust ports on their end faces facing the protective cover, exhaust pipes coaxial with the exhaust ports are fixedly installed on the end faces of the first telescopic cavity and the second telescopic cavity facing the protective cover, a baffle is fixedly installed inside the exhaust pipe, the outer diameter of the baffle is smaller than the inner diameter of the exhaust pipe, and the exhaust fan has a second exhaust pipe that extends into the protective cover and is fixedly connected to the exhaust pipe.

[0013] Preferably, a baffle plate is provided inside the exhaust pipe, and the baffle plate is elastically connected to the baffle plate by a spring. A second round rod extending from the exhaust port is fixedly installed at the end of the baffle plate facing the sliding block.

[0014] Preferably, a cleaning block is slidably installed inside the dust collection box, and a reciprocating screw that extends into the dust collection box and passes through the cleaning block is fixedly installed on the end face of the crushing chamber away from the drive motor. The cleaning block is helically engaged with the reciprocating screw, and cleaning brushes are provided on both the upper and lower end faces of the cleaning block.

[0015] This invention provides a construction waste recycling and processing device, which has the following beneficial effects: (1) The present invention links the crushing and dust removal operations without interfering with each other. The intermittent rotation design of the dust collection box can assist in feeding while not affecting the continuous input and conveying of construction waste, so that large pieces of material can fall at an angle, which greatly improves the overall efficiency of waste crushing and processing. (2) The present invention makes the volume of the first and second telescopic chambers continuously increase and decrease by the reciprocating movement of the slider, and continuously blows and sucks air into the crushing chamber, so that the dust deposited on the inner wall of the crushing chamber and the gap of the crushing roller flows with the airflow, avoiding local dust accumulation, making the dust easier to be collected by the dust collection box and the telescopic chamber, and greatly improving the overall dust removal efficiency. (3) The present invention completes the integrated treatment of dust by filtering with a filter screen, collecting in a cavity, and exhausting with a fan. At the same time, the dust collection box and the screen are equipped with self-cleaning structures to avoid component blockage and ensure long-term stability of dust removal and screening effects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention; Figure 2 for Figure 1 A partial sectional view; Figure 3 for Figure 2 A partial sectional view; Figure 4 for Figure 3 Exploded view; Figure 5 for Figure 4 Rear view; Figure 6 This is a schematic diagram of the internal dust removal mechanism of the present invention; Figure 7 for Figure 8 A partial sectional view; Figure 8 This is an enlarged view of A; Figure 9 This is a partial sectional view shifted to the middle position; Figure 10 for Figure 7 A partial sectional view; Figure 11 This is an enlarged view of B; Figure 12 This is a schematic diagram of the state when the object is moved to its extreme right position. Figure 13Enlarged views of C and D; Figure 14 This is a schematic diagram of the initial leftward shift state; Figure 15 This is a schematic diagram of the state when the object has moved to the middle position to the left. Figure 16 This is a schematic diagram of the leftward movement to its extreme position. Figure 17 This is a sectional view of the installation of the limit block.

[0017] In the diagram: 1. Base; 2. Crushing chamber; 3. Crushing roller; 4. Dust collection box; 5. First telescopic chamber; 6. Second telescopic chamber; 7. Protective cover; 8. Sliding block; 81. First cavity; 9. First slide rail; 10. Second slide rail; 11. Third slide rail; 12. Connecting plate; 13. Screen; 14. Air hole; 15. Drive motor; 16. Exhaust fan; 17. First exhaust pipe; 18. First gear; 19. Second gear; 20. Third gear; 21. Fourth gear; 22. Fourth slide rail; 23. Cylinder; 24. First square rod; 25. Slider; 26. Fifth slide rail; 27. Fifth gear; 28. Sixth gear; 29. ​​Seventh gear; 30. Eighth gear; 31. Second cavity; 32. First square hole; 33. Filter screen; 4. Sixth slide rail; 35. Ninth gear; 36. First slot; 37. Second slot; 38. Limiting block; 381. Y-shaped slide rail; 39. Y-shaped slider; 40. Rack; 41. Third slot; 42. Fourth slot; 43. Limiting plate; 44. Cleaning rod; 441. Long rod; 442. First slot; 45. Square opening; 46. Inclined block; 47. Second slot; 48. Second square rod; 481. Seventh slide rail; 482. Second square hole; 49. U-shaped block; 491. First square plate; 50. Dust outlet; 51. Second square plate; 52. First round rod; 53. Exhaust pipe; 54. Baffle; 55. Wind baffle; 56. Exhaust port; 57. Second round rod; 58. Reciprocating screw; 59. Cleaning block; 60. Second exhaust pipe. Detailed Implementation

[0018] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 17 As will be clearly shown in the detailed description of the embodiments, the structural contents mentioned in the following embodiments are all based on the accompanying drawings. For ease of description, the length direction of the base 1 is defined as the front-to-back direction, and the width direction of the base 1 is defined as the left-to-right direction.

[0019] Example 1: As Figures 1-7As shown, a construction waste recycling and processing device includes a base 1, which is integrally cast in cast iron to provide stable support for the equipment. A steel crushing chamber 2 is welded and fixed to the upper end of the base 1. The crushing chamber 2 is a hollow cavity with an open top, used to contain waste and complete the crushing operation. Two crushing rollers 3 are symmetrically mounted inside the crushing chamber 2 via bearings. The surface of the crushing rollers 3 is welded with spiral crushing teeth, which can squeeze and shear the construction waste. Two arc-shaped dust collection boxes 4 are rotatably mounted inside the crushing chamber 2 via bearings. The dust collection boxes 4 have multiple dust collection holes on the end face facing the waste. Their rotating shafts pass through the side wall of the crushing chamber 2, and a first gear 18 is welded and fixed to the shaft. Two sets of drive motors 15 are bolted to the upper end of the base 1, which drive the two... The crushing roller 3 rotates in the opposite direction, and two exhaust fans 16 are symmetrically fixed. The first exhaust pipe 17 is rotatably connected to the dust collection box 4 in a sealed manner. The exhaust fans 16 are connected to the inside of the dust collection box 4 through the first exhaust pipe 17 to achieve dust collection. The drive shaft of the left drive motor 15 is welded with a second gear 19. The crushing chamber 2 is rotatably mounted facing the end face of the drive motor 15 and meshes with the second gear 19. The third gear 20, the fourth gear 21, the fifth gear 27, and the sixth gear 28 mesh with the third gear 20, the fourth gear 21, and the sixth gear 28 respectively. The fifth and sixth gears mesh with the two first gears 18 on the left and right respectively. The end face of the fifth gear 27 is welded with a seventh gear 29 with a half gear structure. The end face of the sixth gear 28 is welded with an eighth gear 30 that meshes with the seventh gear 29.

[0020] Specifically, after the two motors 15 are started, they directly drive the two crushing rollers 3 to rotate in opposite directions to crush the construction waste fed into the crushing chamber 2. Simultaneously, the second gear 19 sequentially drives the third gear 20 and the fourth gear 21 to rotate. The fourth gear 21 drives the fifth gear 27 and the seventh gear 29 to rotate. The seventh gear 29 drives the eighth gear 30 to rotate. The eighth gear 30 drives the sixth gear 28 to rotate, which in turn drives the two first gears 18 to rotate the dust collection box 4, thus collecting the dust generated during crushing. To reduce dust diffusion, the seventh gear 29 is a half gear that intermittently meshes with the eighth gear 30, causing the two dust collection boxes 4 to rotate in opposite directions intermittently. That is, after the left dust collection box rotates once, it rotates synchronously with the right dust collection box, repeating this process. This motion allows large materials to fall onto the two dust collection boxes 4 when materials are added to the crushing chamber 2. When only one dust collection box 4 is rotating, the rotating dust collection box 4 will push the material towards the non-rotating dust collection box 4, causing the material to slide at an angle from the dust collection box 4 into the crushing chamber 2, which facilitates the crushing of the material.

[0021] Example 2: Please refer to Figures 9-17A construction waste recycling and processing device includes a crushing chamber 2 with two first telescopic chambers 5 and a second telescopic chamber 6 symmetrically welded to its left and right side walls. Each telescopic chamber is a hollow steel sleeve structure, with a metal screen 13 welded to its end face facing the crushing chamber 2. The screen 13 can intercept large particles of impurities. A protective cover 7 is bolted to the end face of the telescopic chamber away from the crushing chamber 2. Sliding blocks 8 are slidably fitted inside each of the two first telescopic chambers 5 and the second telescopic chamber 6, and the sliding blocks 8 can slide back and forth along the axial direction of the telescopic chamber. A first slide rail 9 and a second slide rail 10 are symmetrically opened on the front and rear inner side walls of the crushing chamber 2, respectively located between the crushing roller 3 and the dust collection box 4. A third slide rail is opened at the partition plate between the two slide rails. 11. Connecting plates 12 are slidably installed in the first and second slideways. The left and right ends of the connecting plates 12 are welded and fixed to the sliding blocks 8. A first square rod 24 fixed to the connecting plate 12 is slidably installed in the third slideway 11, so that the two connecting plates 12 move synchronously. A fourth slideway 22 is opened in the first slideway 9 near the fourth gear 21. A slider 25 integrally fixed to the connecting plate 12 is slidably installed inside. A vertical fifth slideway 26 is opened on the end face of the slider 25 facing the fourth gear 21. A cylinder 23 is eccentrically welded to the end face of the fourth gear 21 facing the crushing chamber 2. The cylinder 23 is embedded in the fifth slideway 26. The slider 25 is fixedly connected to the connecting plate 12. The chamber contains a first cavity 81 and a second cavity 31, arranged vertically. The first cavity 81 has a first air hole 14 connecting the telescopic cavity and the first cavity 81. A first square hole 32 is provided at the partition plate between the two cavities. A limit plate 43 is fixedly installed on the end face of the second cavity 31 near the first square hole 32. A filter screen 33 is rotatably installed on the end face away from the crushing chamber 2 via a bearing. The end face of the first square hole 32 near the rotating shaft of the filter screen 33 is arc-shaped and always in contact with the filtering surface of the filter screen 33. The filter screen 33 is a fine-mesh metal mesh, wider than the height of the second cavity 31, and can completely cover the first square hole 32. The rotating shaft of the filter screen 33 extends into the sliding block 8 and faces the protective cover 7. Inside the sixth slide rail 34, the shaft body is welded with the ninth gear 35, and a first slot 36 and a second slot 37 are also provided for the angle positioning of the filter screen 33. A limit block 38 is slidably installed inside the sixth slide rail 34. A Y-shaped slide rail 381 that runs through the upper and lower end faces is provided inside the limit block 38. A Y-shaped slider 39 is slidably installed inside. The Y-shaped slider 39 and the limit block 38 are elastically connected by a spring. The lower end face is a sharp corner structure, which is adapted to the third slot 41 and the fourth slot 42 opened on the lower end face of the first telescopic cavity 5 and the second telescopic cavity 6. A rack 40 that meshes with the ninth gear 35 is welded to the upper end face of the limit block 38, which can drive the ninth gear 35 to rotate by sliding.

[0022] Specifically, when the fourth gear 21 rotates, the eccentric cylinder 23 slides within the fifth slide rail 26, causing the slider 25 to reciprocate up and down along the fourth slide rail 22. This, in turn, via the connecting plate 12, causes the sliding block 8 to reciprocate axially within the telescopic cavity. Figure 12As shown, when the sliding block 8 moves to the left, the left Y-shaped slider 39 engages with the fourth slot 42, and the right Y-shaped slider 39 engages with the third slot 41. The limiting block 38 remains stationary. The sliding block 8 drives the filter screen 33 to move independently first. The ninth gear 35 at the rotating shaft of the filter screen 33 meshes with the rack 40 on the limiting block 38. When the left filter screen 33 moves, it rotates to a horizontal closed position and contacts the limiting plate 43. When the right filter screen 33 moves, it rotates to an inclined position and completely covers the first cavity 81. Figure 14 As shown, when the sliding block 8 continues to move to the left, since both the left and right filter screens 33 are at their limit positions and cannot continue to rotate, the ninth gear 35 at the rotating shaft of the filter screen 33 will drive the rack 40 on the limiting block 38 to move synchronously, causing the Y-shaped slider 39 inside the limiting block 38 to move upward along the Y-shaped slide 381 to compress the spring. At the same time, the Y-shaped slider 39 in the right limiting block 38 inserts into the second slot 37 opened on the right filter screen 33 rotating shaft, and the Y-shaped slider 39 in the left limiting block 38 inserts into the first slot opened on the left filter screen 33 rotating shaft. Inside the groove 36, for the angular positioning of the filter screen 33, when the sliding block 8 moves to the left, it squeezes the cavities of the first telescopic cavity 5 and the second telescopic cavity 6 on the left, causing the gas inside to be ejected from the air hole 14. When the sliding block 8 moves to the left, the cavities of the first telescopic cavity 5 and the second telescopic cavity 6 on the right will increase, and will draw in gas from the crushing chamber 2 through the air hole 14. The dust generated by crushing enters the first cavity 81 on the right with the airflow, and is filtered by the filter screen 33 on the right. The dust is intercepted above the filter screen 33 until the sliding block 8 moves to the limit in the left direction, such as... Figure 16 As shown, at this time, the Y-shaped slider 39 on the left is inserted into the third slot 41, and the one on the right is inserted into the fourth slot 42. When the slider 8 moves to the right, the filter screen 33 on the right will rotate to a horizontal closed position when it moves. The dust intercepted on the filter screen 33 falls into the second cavity 31 under the action of gravity through the limit plate 43, realizing the collection of dust and cleaning of the filter screen.

[0023] Example 3: Please refer to Figures 12-17A construction waste recycling and processing device includes a screen cleaning assembly in a first cavity 81. A cleaning rod 44 is slidably disposed in the first cavity 81. A cleaning brush is disposed on the end face of the cleaning rod 44 facing the screen 13. A long rod 441 is symmetrically welded to the end facing the protective cover 7. The long rod 441 slides through a sliding block 8 and slides within square openings 45 symmetrically opened on the front and back of the first telescopic cavity 5 and the second telescopic cavity 6 facing the protective cover 7. A first groove 442 is opened on the lower end face of the long rod 441. An inclined block 46 is elastically installed inside the first groove 442 by a spring. A second slot 47 is opened in the inner wall of the 6-adapted square opening 45. A second square rod 48 is symmetrically welded in the front and back of the first cavity 81. A seventh slide 481 is opened in the second square rod 48. A second square hole 482 with a size smaller than the seventh slide 481 is opened at one end facing the cleaning rod 44. A U-shaped block 49 is fitted in the second square hole 482. The U-shaped block 49 and the second square rod 48 are elastically connected by a spring. The end face of the U-shaped block 49 facing the cleaning rod 44 is welded to the cleaning rod 44. A first square plate 491 that slides in the seventh slide 481 is welded to the other end to prevent the U-shaped block 49 from falling out.

[0024] Specifically, such as Figure 12 As shown, when the sliding block 8 moves to the left, the left Y-shaped slider 39 engages with the fourth slot 42, and the right Y-shaped slider 39 engages with the third slot 41. The limiting block 38 remains stationary. The sliding block 8 drives the filter screen 33 to move independently first. The ninth gear 35 at the rotating shaft of the filter screen 33 meshes with the rack 40 on the limiting block 38. When the left filter screen 33 moves, it rotates to a horizontal closed position and contacts the limiting plate 43. When the right filter screen 33 moves, it rotates to an inclined position and completely covers the first cavity 81. Figure 14 As shown, because the inclined block 46 inside the long rod 441 on the left is located inside the second slot 47 under the action of the spring, the cleaning rod 44 on the left will not move synchronously with the sliding block 8. When the sliding block 8 continues to move to the left, as... Figure 15 As shown, the U-shaped block 49 of the left cleaning rod 44 will move relative to the second square hole 482, stretching the spring between the U-shaped block 49 and the second square rod 48. At this time, the cleaning brush of the left cleaning rod 44 will clean the left filter screen 33 until the first square plate 491 of the left cleaning rod 44 contacts the second square hole 482 and reaches the limit position. Figure 15As shown, when the sliding block 8 continues to move to the left, it will drive the cleaning rod 44 to move synchronously, causing the inclined block 46 to retract into the first slot 442 and disengage from the second slot 47. The spring in the second square rod 48 will return to its original position until the left Y-shaped slider 39 is engaged in the third slot 41 and the right Y-shaped slider 39 is engaged in the fourth slot 42. During this process, the inclined block 46 in the right long rod 441 is not in the second slot 47, and the right cleaning rod 44 will move synchronously with the sliding block 8 until the inclined block 46 in the right long rod 441 is located in the second slot 47 under the action of the spring. Figure 16 As shown, when the sliding block 8 moves to the right, the filter 33 on the right side will be cleaned.

[0025] Example 4: Please refer to Figures 7-11 A construction waste recycling and processing device includes a second cavity 31 with a dust outlet 50 on the end face facing the protective cover 7. A second square plate 51 is elastically slidably disposed inside the second cavity 31 by a spring. A first round rod 52 is welded to the end face of the second square plate 51 facing the protective cover 7. The first round rod 52 extends out of the second cavity 31 from the dust outlet 50. A first telescopic cavity 5 and a second telescopic cavity 6 have exhaust ports 56 on the end faces facing the protective cover 7. An exhaust pipe 53 coaxial with the exhaust port 56 is welded to the end face. A baffle 54 is welded inside the exhaust pipe 53. The outer diameter of the baffle 54 is smaller than the inner diameter of the exhaust pipe 53. A wind baffle 55 is elastically disposed inside the exhaust pipe 53 by a spring. A second round rod 57 is welded to one end of the wind baffle 55 facing the sliding block 8. The second round rod 57 extends out from the exhaust port 56. An exhaust fan 16 on the base 1 extends into the protective cover 7 through a second exhaust pipe 60 and is fixedly connected to the exhaust pipe 53.

[0026] Specifically, when the sliding block 8 moves to its limit in the left direction, the first round rod 52 on the left side moves with the sliding block 8 and contacts the second round rod 57, causing the springs between the left-side baffle 55 and baffle 54 and the springs between the second square plate 51 and the second cavity 31 to be compressed, thus opening the dust outlet 50 and the exhaust port 56, and connecting the exhaust pipe 53 to the second cavity 31. Figure 11 As shown, at this time, the exhaust fan 16 exhausts the second cavity 31 through the second exhaust pipe 60 and the exhaust pipe 53, quickly extracting the dust collected in the cavity and realizing the centralized collection of dust. When the sliding block 8 moves towards the crushing chamber 2, the first round rod 52 disengages from the second round rod 57, the baffle plate 55 automatically closes under the action of the spring, and the second square plate 51 also resets under the action of the spring. The baffle plate 54 is set so that the baffle plate 55 can only be opened in one direction to prevent the airflow from flowing back during exhaust.

[0027] Example 5: Please refer to Figure 2As shown, a construction waste recycling and processing device includes a self-cleaning component of a dust collection box 4. A cleaning block 59 is slidably installed inside the dust collection box 4. Wear-resistant cleaning brushes are provided on both the upper and lower end faces of the cleaning block 59, and the cleaning brushes are in close contact with the inner wall of the dust collection box 4. A reciprocating screw 58 is welded to the end face of the crushing chamber 2 away from the drive motor 15. The reciprocating screw 58 extends into the dust collection box 4 and passes through the cleaning block 59. The cleaning block 59 and the reciprocating screw 58 are screwed together. The rotation of the dust collection box 4 can drive the cleaning block 59 to make reciprocating linear motion along the screw. The reciprocating screw (also commonly called a reciprocating lead screw or a double-sided screw) is a universal screw that can convert rotational motion into linear reciprocating motion without the need for motor reversal. The core structure of the mechanical transmission component is a rod with continuously closed bidirectional spiral grooves. The matching nut forms a spiral engagement with the spiral grooves. When the screw rotates, the cleaning block automatically completes a cyclic linear motion of forward → reverse → return along the groove. No additional electronic control, sensors, or drive units are required. The purely mechanical structure achieves stable reciprocating motion. This invention uses a reciprocating screw and a cleaning block to form a self-cleaning mechanism for the dust collection box. The rotational power of the dust collection box itself drives the cleaning block to make continuous reciprocating linear motion along the axis of the reciprocating screw, which drives the cleaning brush to clean the inner wall of the dust collection box and the suction holes without dead angles. This effectively avoids dust accumulation and dust hole blockage, and ensures the long-term stable operation of the vacuuming device.

[0028] Specifically, when the gear set drives the dust collection box 4 to rotate around its own rotation axis, the cleaning block 59 rotates synchronously with the dust collection box 4. Due to the spiral engagement with the reciprocating screw 58, the cleaning block 59 moves axially back and forth in a straight line along the reciprocating screw 58. The cleaning brushes on the upper and lower end faces of the cleaning block 59 move with it, thoroughly scrubbing the inner wall of the dust collection box 4, cleaning off the dust and fine waste particles adsorbed on the inner wall of the dust collection box 4, preventing the suction holes from being blocked, and ensuring the suction efficiency of the dust collection box 4.

[0029] Working principle: After the two motors 15 are started, they directly drive the two crushing rollers 3 to rotate in opposite directions to crush the construction waste fed into the crushing chamber 2. On the other hand, the second gear 19 drives the third gear 20 and the fourth gear 21 to rotate in sequence. The fourth gear 21 drives the fifth gear 27 and the seventh gear 29 to rotate. The seventh gear 29 drives the eighth gear 30 to rotate. The eighth gear 30 drives the sixth gear 28 to rotate, which in turn drives the two first gears 18 to rotate the dust collection box 4 to collect the dust generated by crushing and reduce dust diffusion. When the dust collection box 4 rotates, it drives the cleaning block 59 to rotate, so that the cleaning block 59 moves axially and reciprocally in a linear motion along the reciprocating screw 58. The cleaning brushes on the upper and lower end faces of the cleaning block 59 move with it, thoroughly scrubbing the inner wall of the dust collection box 4 and removing the dust and fine waste adsorbed on the inner wall of the dust collection box 4. The particles are cleaned up to prevent the suction holes from getting clogged and to ensure the suction efficiency of the suction box 4. Because the seventh gear 29 is a half gear, it meshes intermittently with the eighth gear 30, causing the two suction boxes 4 to rotate in opposite directions intermittently. That is, after the left suction box rotates once, it rotates synchronously with the right suction box, repeating this motion. This motion allows large materials to fall onto both suction boxes 4 when materials are added to the crushing chamber 2. When only one suction box 4 is rotating, the rotating suction box 4 pushes the material towards the stationary suction box 4, causing the material to slide at an angle from the suction box 4 into the crushing chamber 2, which facilitates the crushing of the material. When the fourth gear 21 rotates, the eccentric cylinder 23 slides in the fifth slide rail 26, driving the slider 25 to move up and down along the fourth slide rail 22. This, in turn, drives the sliding block 8 to slide axially back and forth in the telescopic cavity through the connecting plate 12. Figure 12 As shown, when the sliding block 8 moves to the left, because the left Y-shaped slider 39 is engaged in the fourth slot 42 and the right Y-shaped slider 39 is engaged in the third slot 41, the limiting block 38 remains stationary. The sliding block 8 drives the filter screen 33 to move independently first. The ninth gear 35 at the rotating shaft of the filter screen 33 meshes with the rack 40 on the limiting block 38. When the left filter screen 33 moves, it will rotate to a horizontal closed position and contact the limiting plate 43. When the right filter screen 33 moves, it will rotate to an inclined position and completely cover the first cavity 81. Figure 14As shown, when the sliding block 8 continues to move to the left, since both the left and right filters 33 are at their limit positions and cannot continue to rotate, the ninth gear 35 at the rotating shaft of the filter 33 will drive the rack 40 on the limiting block 38 to move synchronously, causing the Y-shaped slider 39 inside the limiting block 38 to move upward along the Y-shaped slide 381 to compress the spring. At the same time, the Y-shaped slider 39 inside the right limiting block 38 inserts into the second slot 37 opened on the right filter 33 rotating shaft, and the Y-shaped slider 39 inside the left limiting block 38 inserts into the first slot 36 opened on the left filter 33 rotating shaft, which is used for the angle positioning of the filter 33. When the sliding block 8 moves to the left, it will squeeze the left side. The cavities of the first telescopic chamber 5 and the second telescopic chamber 6 allow the internal gas to be ejected from the air hole 14. When the sliding block 8 moves to the left, the cavities of the first telescopic chamber 5 and the second telescopic chamber 6 on the right side will increase, and gas will be drawn in from the crushing chamber 2 through the air hole 14. The dust generated by crushing enters the first cavity 81 on the right side with the airflow, and is filtered by the right-side filter screen 33. The dust is intercepted above the right-side filter screen 33 until the sliding block 8 moves to the left limit. At the same time, because the inclined block 46 in the long rod 441 on the left side is located in the second slot 47 under the action of the spring, the cleaning rod 44 on the left side will not move synchronously with the sliding block 8. When the sliding block 8 continues to move to the left, as Figure 15 As shown, the U-shaped block 49 of the left cleaning rod 44 will move relative to the second square hole 482, stretching the spring between the U-shaped block 49 and the second square rod 48. At this time, the cleaning brush of the left cleaning rod 44 will clean the left filter screen 33 until the first square plate 491 of the left cleaning rod 44 contacts the second square hole 482 and reaches the limit position. When the sliding block 8 continues to move to the left, it will drive the cleaning rod 44 to move synchronously, causing the inclined block 46 to retract into the first slot 442 and disengage from the second slot 47. The spring in the second square rod 48 will return to its original position until the left Y-shaped slider 39 is inserted into the third slot 41 and the right Y-shaped slider 39 is inserted into the fourth slot 42. During this process, because the inclined block 46 in the right long rod 441 is not in the second slot 47, the right cleaning rod 44 will move synchronously with the sliding block 8 until the inclined block 46 in the right long rod 441 is located in the second slot 47 under the action of the spring. Figure 16As shown, at this time, the Y-shaped slider 39 on the left is engaged in the third slot 41, and the Y-shaped slider 39 on the right is engaged in the fourth slot 42. When the sliding block 8 moves to its limit in the left direction, the first round rod 52 on the left moves with the sliding block 8 and contacts the second round rod 57, causing the spring between the baffle plate 55 and the baffle plate 54 on the left and the spring between the second square plate 51 and the second cavity 31 to be compressed, causing the dust outlet 50 and the exhaust port 56 to open, and the exhaust pipe 53 to connect with the second cavity 31. At this time, the exhaust fan 16 exhausts the second cavity 31 through the second exhaust pipe 60 and the exhaust pipe 53, quickly extracting the dust collected in the cavity and achieving centralized dust collection. When the sliding block 8 moves to the right, the first round rod 52 on the left ... and the second round rod 57 on the right contacts the second round rod 57. When the filter screen 33 moves, it rotates to a horizontally closed position. Dust trapped on the filter screen 33 falls into the second cavity 31 under the influence of gravity, after being bumped by the limiting plate 43. During movement, the cleaning rod 44 on the right side cleans the filter screen 33 on the right. When the sliding block 8 moves to its right limit, the first round rod 52 on the left side disengages from the second round rod 57, the baffle plate 55 automatically closes under the action of the spring, and the second square plate 51 also resets under the action of the spring. After the sliding block 8 moves to its right limit, the exhaust pipe 53 on the right side connects to the second cavity 31. At this time, the exhaust fan 16 exhausts the second cavity 31 through the second exhaust pipe 60 and the exhaust pipe 53, quickly extracting the dust collected inside the cavity. Figure 11 As shown, the baffle 54 allows the baffle 55 to open only in one direction, preventing backflow of air during ventilation. The elastic connection of the spring enables the automatic reset of each component. The entire extraction process requires no additional control and is linked with the movement of the sliding block 8 to achieve efficient and non-accumulated dust extraction, avoiding secondary diffusion of dust in the telescopic cavity.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction waste recycling and processing device, comprising a base (1), characterized in that: The upper end face of the base (1) is fixedly installed with a crushing chamber (2). Two crushing rollers (3) are rotatably installed inside the crushing chamber (2) at the bottom. A dust collection box (4) is rotatably installed inside the crushing chamber (2) at the top. The rotating shaft of the dust collection box (4) passes through the crushing chamber (2) and a first gear (18) is fixedly installed on the shaft. Two sets of drive motors (15) that drive the two crushing rollers (3) to rotate are fixedly installed on the upper end face of the base (1). Two exhaust fans (16) are symmetrically fixedly installed on the upper end face of the base (1). The two exhaust fans (16) are respectively fixedly installed with a first exhaust pipe (17) that is rotatably connected to the dust collection box (4) in a sealed manner. A second gear (19) is fixedly installed on the drive shaft of the drive motor (15) on the left side. A gear set that meshes with the second gear (19) and the first gear (18) is rotatably installed on the end face of the crushing chamber (2) facing the drive motor (15).

2. The construction waste recycling and processing device according to claim 1, characterized in that: The crushing chamber (2) has two first telescopic chambers (5) and a second telescopic chamber (6) symmetrically fixedly installed on its left and right side walls. Screens (13) are fixedly installed on the end faces of the first telescopic chambers (5) and the second telescopic chambers (6) facing the crushing chamber (2). Protective covers (7) are fixedly installed on the end faces of the two first telescopic chambers (5) and the second telescopic chambers (6) away from the crushing chamber (2). Sliding blocks (8) are slidably arranged inside each of the two first telescopic chambers (5) and the second telescopic chambers (6). The crushing chamber (2) has symmetrically opened first slideways (9) located between the crushing roller (3) and the dust collection box (4) on its front and rear inner side walls. The crushing chamber (2) has first slideways (9) symmetrically opened on its front and rear inner side walls. A second slide (10) is symmetrically provided below the slide (9). A third slide (11) is provided at the partition plate between the first slide (9) and the second slide (10) to connect the first slide (9) and the second slide (10). A connecting plate (12) is slidably installed on both the first slide (9) and the second slide (10). The left and right ends of the connecting plate (12) are fixedly connected to the sliding block (8). A first square rod (24) fixedly connected to the connecting plate (12) is slidably installed in the third slide (11). A first cavity (81) is provided in the sliding block (8). An air hole (14) is provided at the end of the sliding block (8) facing the protective cover (7).

3. The construction waste recycling and processing device according to claim 2, characterized in that: The gear set includes a third gear (20) that is rotatably mounted on the end face of the crushing chamber (2) facing the drive motor (15) and meshes with a second gear (19). A fourth gear (21) that is rotatably mounted on the end face of the crushing chamber (2) facing the drive motor (15) and meshes with the third gear (20). A fifth gear (27) and a sixth gear (28) that are rotatably mounted on the outer wall of the crushing chamber (2) are arranged above the fourth gear (21). The fifth gear (27) meshes with the first gear (18) on the left side. The sixth gear (28) meshes with the first gear (18) on the right side. The fifth gear (27) meshes with the fourth gear (21). A seventh gear (29) is fixedly mounted on the end face of the fifth gear (27) away from the crushing chamber (2). The seventh gear (29) is a half gear. An eighth gear (30) that meshes with the seventh gear (29) is fixedly mounted on the end face of the sixth gear (28) away from the crushing chamber (2).

4. The construction waste recycling and processing device according to claim 3, characterized in that: A fourth slide (22) is provided in the first slide (9) near the fourth gear (21). A slider (25) integrally fixed with the connecting plate (12) is slidably provided in the fourth slide (22). A fifth slide (26) is provided on the end face of the slider (25) facing the fourth gear (21) in the vertical direction. A cylinder (23) that slides in the fifth slide (26) is eccentrically fixed on the end face of the fourth gear (21) facing the crushing chamber (2). The end face of the slider (25) away from the fourth gear (21) is fixedly connected to the connecting plate (12).

5. The construction waste recycling and processing device according to claim 3, characterized in that: The sliding block (8) has a second cavity (31) below the first cavity (81). The sliding block (8) has a sixth slide rail (34) symmetrically opened at one end facing the protective cover (7). The partition plate between the first cavity (81) and the second cavity (31) has a first square hole (32). A limit plate (43) is fixedly installed on the end face of the second cavity (31) near the first square hole (32). A filter screen (33) is rotatably installed on the end face of the first square hole (32) away from the crushing chamber (2).

6. The construction waste recycling and processing device according to claim 5, characterized in that: The rotating shaft of the filter screen (33) extends into the sixth slide rail (34). A ninth gear (35) is fixedly mounted on the outer surface of the rotating shaft of the filter screen (33). The rotating shaft of the filter screen (33) has a first slot (36) and a second slot (37). A limiting block (38) is slidably installed in the sixth slide rail (34). A Y-shaped slide rail (381) penetrating the upper and lower end faces of the limiting block (38) is opened in the limiting block (38). A Y-shaped slider (3) is slidably installed in the Y-shaped slide rail (381). 9), and the Y-shaped slider (39) and the limiting block (38) are elastically connected by a spring. The lower end face of the Y-shaped slider (39) is a sharp corner. The upper end face of the limiting block (38) is fixedly installed with a rack (40) that meshes with the ninth gear (35). The lower inner end faces of the first telescopic cavity (5) and the second telescopic cavity (6) are provided with a third slot (41) that is compatible with the Y-shaped slider (39) near the protective cover (7), and a fourth slot (42) that is compatible with the Y-shaped slider (39) is provided away from the protective cover (7).

7. The construction waste recycling and processing device according to claim 4, characterized in that: A cleaning rod (44) is slidably disposed in the first cavity (81). A long rod (441) is symmetrically disposed at the end of the cleaning rod (44) facing the protective cover (7). Square openings (45) are symmetrically opened at the end faces of the first telescopic cavity (5) and the second telescopic cavity (6) facing the protective cover (7). The long rod (441) slides through the sliding block (8) and slides in the square opening (45). A first groove (442) is opened on the lower end face of the long rod (441). An inclined block (46) is slidably installed in the first groove (442). The inclined block (46) and the long rod (441) are elastically connected by a spring. A second groove (445) adapted to the inclined block (46) is opened in the square opening (45). 7) A second square rod (48) is symmetrically installed in the first cavity (81). A seventh slide (481) is provided in the second square rod (48). A second square hole (482) smaller than the seventh slide (481) is provided at the end of the second square rod (48) facing the cleaning rod (44). A U-shaped block (49) is fitted in the second square hole (482). The second square rod (48) and the U-shaped block (49) are elastically connected by a spring. The end face of the U-shaped block (49) facing the cleaning rod (44) is fixedly connected to the cleaning rod (44). A first square plate (491) that slides in the seventh slide (481) is fixedly installed on the end face of the U-shaped block (49) facing the second square rod (48).

8. A construction waste recycling and processing device according to claim 5, characterized in that: The second cavity (31) has a dust outlet (50) on its end face facing the protective cover (7). A second square plate (51) is slidably disposed inside the second cavity (31). The second square plate (51) and the second cavity (31) are elastically connected by a spring. A first round rod (52) extending out of the second cavity (31) from the dust outlet (50) is fixedly installed on the end face of the second square plate (51) facing the protective cover (7). The first telescopic cavity (5) and the second telescopic cavity (6) face the protective cover (7). The end face of the cover (7) is provided with an exhaust port (56). The first telescopic cavity (5) and the second telescopic cavity (6) are fixedly installed with an exhaust pipe (53) coaxial with the exhaust port (56) on the end face of the protective cover (7). A baffle (54) is fixedly installed inside the exhaust pipe (53). The outer diameter of the baffle (54) is smaller than the inner diameter of the exhaust pipe (53). The exhaust fan (16) is fixedly installed with a second exhaust pipe (60) that extends into the protective cover (7) and is fixedly connected to the exhaust pipe (53).

9. A construction waste recycling and processing device according to claim 8, characterized in that: A baffle plate (55) is provided inside the exhaust pipe (53). The baffle plate (55) and the baffle plate (54) are elastically connected by a spring. A second round rod (57) extending from the exhaust port (56) and the second cavity (31) is fixedly installed on one end of the baffle plate (55) facing the sliding block (8).

10. A construction waste recycling and processing device according to claim 1, characterized in that: A cleaning block (59) is slidably installed inside the dust collection box (4). A reciprocating screw (58) that extends into the dust collection box (4) and passes through the cleaning block (59) is fixedly installed on the end face of the crushing chamber (2) away from the drive motor (15). The cleaning block (59) and the reciprocating screw (58) are screwed together. Cleaning brushes are provided on both the upper and lower end faces of the cleaning block (59).

Images