A construction waste crushing and mixing equipment for renovation of construction sites

Abstract

The present invention discloses a construction waste crushing and mixing device for use at a construction site, which includes a working box. There is a crushing box inside the working box. The crushing box is provided with first filtering holes. A feeding mechanism is arranged through the left side of the working box, and the feeding mechanism is communicated with the left side of the crushing box. A crushing mechanism is slidably connected inside the crushing box, and the right side of the crushing mechanism is connected with a power mechanism. The power mechanism is fixedly connected to the inner wall of the right side of the working box cavity. A sealing door is installed on the surface of the working box. Through the feeding mechanism, not only can the concrete blocks to be crushed be conveyed, but also the concrete blocks can be preliminarily filtered through the second filtering holes, and the concrete blocks that directly meet the standards can be separated and collected, reducing the amount of concrete blocks that need to be crushed. The unqualified concrete blocks will be crushed by being squeezed and stirred by the crushing mechanism, and the crushed qualified concrete blocks will also be discharged through the first filtering holes in time to be collected and will not accumulate.

Description

Technical Field

[0001] The present invention relates to the field of construction waste, and in particular to a construction waste crushing and mixing device for rebuilding construction sites. Background Art

[0002] Construction waste refers to the muck, waste soil, waste materials, silt and other waste generated during the construction, laying or demolition and repair of various buildings, structures, pipe networks, etc. by construction, construction units or individuals.

[0003] Concrete is the most common and frequently used material in construction. When a building needs to be demolished and rebuilt, the construction waste (concrete blocks) generated accounts for a large proportion. And the concrete block construction waste can be processed and recycled, but it needs to be crushed into small granular concrete blocks to be used continuously. At present, conventional concrete crushing equipment only crushes concrete blocks by means of a single crushing method, such as drill bit crushing and stamping crushing, but the effect is single, the crushing speed is slow, and the crushed concrete is not all qualified. Many crushed concrete blocks are still too large in volume to be used and need to be picked out and reworked, which is very cumbersome and time-consuming. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction waste crushing and mixing device for rebuilding construction sites to solve the above technical problems.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A construction waste crushing and mixing device for rebuilding construction sites includes a working box. A crushing box is arranged inside the working box. A plurality of first filtering holes are penetrated through the crushing box. A feeding mechanism is penetrated through the left side of the working box. The feeding mechanism is fixedly connected with the working box and is communicated with the left side of the crushing box. A crushing mechanism is slidably connected inside the crushing box. The right side of the crushing mechanism is connected with a power mechanism. The power mechanism is fixedly connected with the inner wall of the right side of the working box cavity.

[0007] Preferably, the feeding mechanism includes an installation pipe fixedly arranged on the working box. The installation pipe is communicated with the crushing box. A auger is arranged inside the installation pipe. A first motor is installed at the left end of the installation pipe. The power output shaft of the first motor extends into the installation pipe and is connected with the auger. A feeding pipe is installed at the top of the part of the installation pipe located outside the working box. A plurality of second filtering holes are penetrated through the bottom of the part of the installation pipe located inside the working box. A connecting shaft is fixedly arranged at the right end of the auger. A plurality of stirring plates are fixedly arranged on the connecting shaft.

[0008] Preferably, the crushing mechanism includes a rotating disk, through which four rotating shafts are arranged. The rotating shafts are rotatably connected to the rotating disk. A first gear is fixedly arranged at the right end of each rotating shaft, and a mounting disk is fixedly arranged at the left end of each rotating shaft. A plurality of crushing cutter heads are fixedly arranged on the mounting disk. A plurality of extrusion columns are fixedly arranged on the left side surface of the rotating disk, and a plurality of conical thorns are fixedly arranged on the extrusion columns. A plurality of limiting blocks of different specifications are fixedly arranged at the left edge of the rotating disk. A protective cover is fixedly arranged on the right side surface of the rotating disk. A third mounting plate is arranged inside the protective cover. The third mounting plate is connected to the rotating disk through mounting columns. A third motor is mounted on the right side surface of the third mounting plate. The power output shaft of the third motor extends to the left side of the third mounting plate and is fixedly connected to a second gear. The second gear meshes with the four first gears. Both the rotating disk and the protective cover are slidably connected to the crushing box, and the rotating disk and the protective cover have the same diameter.

[0009] Preferably, the power mechanism includes a second mounting plate fixedly connected to the right inner wall of the working box cavity. A first mounting plate is fixedly arranged at the top of the second mounting plate. A second motor is fixedly arranged on the surface of the first mounting plate. The power output shaft of the second motor extends to the back of the first mounting plate and is connected to a second rotating rod. The second rotating rod is rotatably connected to the working box. A third connecting plate is fixedly arranged on the second rotating rod. One end of the third connecting plate away from the second rotating rod is rotatably connected to a second connecting plate. One end of the second connecting plate away from the third connecting plate is rotatably connected to a first connecting plate. The first connecting plate is fixedly connected to the protective cover.

[0010] Preferably, the left side of the crushing box is connected to the working box through a plurality of connecting columns.

[0011] Preferably, a knocking mechanism is arranged in front of the crushing box. A plurality of second conical gears are fixedly arranged on the second rotating rod, and the second conical gears mesh with the knocking mechanism.

[0012] Preferably, the knocking mechanism includes a rotating member fixedly connected to the working box. A first rotating rod is rotatably connected inside the rotating member. A plurality of first stirring rods are fixedly arranged at the left end of the first rotating rod. The first stirring rods are made of soft rubber material. A first conical gear is fixedly arranged at the right end of the first rotating rod. The first conical gear meshes with the second conical gear.

[0013] Preferably, a third rotating rod is penetratingly arranged on the second mounting plate. The third rotating rod is rotatably connected to the second mounting plate. Third bevel gears are fixedly arranged at both the top end and the bottom end of the third rotating rod. The third bevel gear at the top end of the third rotating rod meshes with the second bevel gear. A fourth rotating rod is arranged below the third rotating rod. The fourth rotating rod is rotatably connected to the working box. A fourth bevel gear is fixedly arranged on the fourth rotating rod. The fourth bevel gear meshes with the third bevel gear at the bottom end of the third rotating rod. The left end of the fourth rotating rod is connected to the discharging mechanism.

[0014] Preferably, the discharging mechanism includes a collecting box. An inclined plate is fixedly arranged inside the collecting box in an inclined manner. A fifth rotating rod is arranged inside the collecting box. The fifth rotating rod is rotatably connected to the collecting box. A plurality of belt pulleys are fixedly arranged on the plurality of fifth rotating rods. The plurality of belt pulleys are connected by a connecting belt. A plurality of second stirring rods are fixedly arranged on the fifth rotating rod. The second stirring rods are made of magnet material. The fifth rotating rod is connected to the fourth rotating rod.

[0015] Preferably, discharging ports are penetratingly arranged on both the collecting box and the working box. The top end of the inclined plate near the discharging port is flush with the bottom of the discharging port.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the feeding mechanism of the present invention, not only can the concrete blocks to be crushed be transported, but also the concrete blocks can be preliminarily filtered through the second filtering holes, and the concrete blocks that directly meet the standards can be separated and collected, reducing the amount of concrete blocks to be crushed. The unqualified concrete blocks will be crushed by the crushing mechanism through extrusion, stirring, and impact. The crushed qualified concrete blocks will also be timely discharged through the first filtering holes and collected, without accumulation. Moreover, through the stirring plate, the concrete blocks just entering the crushing box can be stirred, which can not only better make the concrete blocks that do not need to be crushed be discharged in advance, but also enable the stirred concrete blocks to contact the crushing mechanism faster, accelerating the crushing effect.

[0018] 2. The third motor makes the crushing cutter head crush the concrete blocks through the rotating shaft. And during the crushing process, due to the high-speed rotation of the crushing cutter head and the mounting disc, it will also play a stirring role, enabling the concrete blocks to rotate inside the crushing box. Some of the rotating concrete blocks will directly impact the extrusion column, conical thorns, and limit blocks, further achieving the effect of crushing the concrete blocks.

[0019] 3. Through the power mechanism, not only can the crushing mechanism be driven to move left and right to crush the concrete blocks, but also the first stirring rod in the knocking mechanism can be driven, so that the first stirring rod knocks on the crushing box, causing the crushing box to vibrate, which can achieve the effect of accelerating the filtering of the concrete blocks.

[0020] 4. Under the action of the power mechanism, the fifth rotating rod can be rotated, and with the help of the fifth rotating rod, the concrete blocks inside the mixing and collecting box can be stirred. Since the second stirring rod is made of magnet, it can also adsorb metals to collect the remaining metal debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the working box of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the feeding mechanism of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the crushing mechanism of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the collecting mechanism of the present invention;

[0026] Figure 6 It is a schematic connection diagram of the power mechanism and the knocking mechanism of the present invention;

[0027] Figure 7 It is a schematic connection diagram of the rotating disk and the crushing cutter head of the present invention;

[0028] Figure 8 It is a left view of the crushing mechanism of the present invention.

[0029] Reference numerals: 1. Working box; 2. Feeding pipe; 3. First motor; 4. Installation pipe; 5. Auger; 6. Connecting column; 7. Crushing box; 8. First filter hole; 9. Rotating disk; 10. First connecting plate; 11. First rotating rod; 12. Rotating member; 13. First bevel gear; 14. Second bevel gear; 15. Second rotating rod; 16. First mounting plate; 17. Second motor; 18. Second mounting plate; 19. Third rotating rod; 20. Third bevel gear; 21. Fourth rotating rod; 22. Fourth bevel gear; 23. Stirring plate; 24. Limiting block; 25. Conical thorn; 26. Protective cover; 27. Second filter hole; 28. Extrusion column; 29. Crushing cutter head; 30. Mounting disk; 31. Rotating shaft; 32. Mounting column; 33. First gear; 34. Second gear; 35. Third motor; 36. Third mounting plate; 37. First stirring rod; 38. Second connecting plate; 39. Third connecting plate; 40. Pulley; 41. Fifth rotating rod; 42. Second stirring rod; 43. Inclined plate; 44. Connecting belt; 45. Collecting box; 46. Discharge port. DETAILED DESCRIPTION OF THE INVENTION

[0030] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and the accompanying drawings. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without making creative efforts all fall within the protection scope of the present invention.

[0031] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] As Figure 1-4 shown, a construction waste crushing and mixing device for a construction site transformation includes a working box 1. Inside the working box 1, a crushing box 7 is provided. A number of first filter holes 8 are provided through the crushing box 7. A feeding mechanism is provided through the left side of the working box 1. The feeding mechanism is fixedly connected to the working box 1 and is connected to the left side of the crushing box 7. A crushing mechanism is slidably connected inside the crushing box 7. The right side of the crushing mechanism is connected to a power mechanism. The power mechanism is fixedly connected to the inner right wall of the working box 1. The left side of the crushing box 7 is connected to the working box 1 through a plurality of connecting columns 6;

[0034] The feeding mechanism includes an installation pipe 4. The installation pipe 4 is fixedly arranged through the working box 1. The installation pipe 4 is connected to the crushing box 7. A screw conveyor 5 is arranged inside the installation pipe 4. A first motor 3 is installed at the left end of the installation pipe 4. The power output shaft of the first motor 3 extends into the installation pipe 4 and is connected to the screw conveyor 5. A feeding pipe 2 is installed at the top of the part of the installation pipe 4 outside the working box 1. A number of second filter holes 27 are provided through the bottom of the part of the installation pipe 4 inside the working box 1. A connecting shaft is fixedly arranged at the right end of the screw conveyor 5. A plurality of stirring plates 23 are fixedly arranged on the connecting shaft. By starting the first motor 3, the first motor 3 drives the screw conveyor 5 to rotate. Subsequently, the concrete blocks to be crushed are put into the feeding pipe 2. Thus, the concrete blocks will be conveyed by the screw conveyor 5 into the crushing box 7. And during the conveying process, the concrete blocks will be filtered through the second filter holes 27 on the installation pipe 4 first, and the qualified concrete blocks will be discharged first, reducing the crushing amount. And when the screw conveyor 5 rotates, it can also drive the stirring plates 23 to rotate. The stirring plates 23 stir the concrete blocks just entering the crushing box 7. Not only can it better make the concrete blocks that do not need to be crushed be discharged in advance, but the stirred concrete blocks can also contact the crushing mechanism faster, accelerating the crushing effect;

[0035] The crushing mechanism includes a rotating disk 9. Four rotating shafts 31 are penetratingly arranged on the rotating disk 9. The rotating shafts 31 are rotatably connected to the rotating disk 9. A first gear 33 is fixedly arranged at the right end of the rotating shaft 31. An installation disk 30 is fixedly arranged at the left end of the rotating shaft 31. A plurality of crushing cutter heads 29 are fixedly arranged on the installation disk 30. A plurality of extrusion columns 28 are fixedly arranged on the left side surface of the rotating disk 9. A plurality of conical thorns 25 are fixedly arranged on the extrusion columns 28. A plurality of limiting blocks 24 of different specifications are fixedly arranged on the left edge of the rotating disk 9. A protective cover 26 is fixedly arranged on the right side surface of the rotating disk 9. A third installation plate 36 is arranged inside the protective cover 26. The third installation plate 36 is connected to the rotating disk 9 through installation columns 32. A third motor 35 is installed on the right side surface of the third installation plate 36. The power output shaft of the third motor 35 extends to the left side of the third installation plate 36 and is fixedly connected to a second gear 34. The second gear 34 meshes with the four first gears 33. Both the rotating disk 9 and the protective cover 26 are slidably connected to the crushing box 7. The rotating disk 9 and the protective cover 26 have the same diameter. The power mechanism includes a second installation plate 18. The second installation plate 18 is fixedly connected to the right inner wall of the working box 1. A first installation plate 16 is fixedly arranged on the top of the second installation plate 18. A second motor 17 is fixedly arranged on the surface of the first installation plate 16. The power output shaft of the second motor 17 extends to the back of the first installation plate 16 and is connected to a second rotating rod 15. The second rotating rod 15 is rotatably connected to the working box 1. A third connecting plate 39 is fixedly arranged on the second rotating rod 15. One end of the third connecting plate 39 away from the second rotating rod 15 is rotatably connected to a second connecting plate 38. One end of the second connecting plate 38 away from the third connecting plate 39 is rotatably connected to a first connecting plate 10. The first connecting plate 10 is fixedly connected to the protective cover 26;

[0036] Start the second motor 17 and the third motor 35. The second motor 17 drives the second rotating rod 15 to rotate. The second rotating rod 15 drives the third connecting plate 39 to rotate. The third connecting plate 39 drives the third motor 35 to drive the rotating disk 9 to move left and right through the second connecting plate 38 and the first connecting plate 10. The third motor 35 drives the crushing cutter heads 29 to rotate through the first gears 33 and the second gear 34. Thus, the crushing cutter heads 29 rotating at high speed will continuously squeeze the concrete blocks back and forth. And during the crushing process, due to the high-speed rotation of the crushing cutter heads 29 and the installation disk 30, it will also play a stirring role, enabling the concrete blocks to rotate inside the crushing box 7. Some of the rotating concrete blocks will directly hit the extrusion columns 28, the conical thorns 25, and the limiting blocks 24, further achieving the effect of crushing the concrete blocks, and can achieve the effect of crushing the concrete blocks;

[0037] The crushed concrete blocks will also directly pass through the first filter holes 8 and be discharged from the crushing box 7, and will not accumulate inside the crushing box 7.

[0038] Embodiment 2:

[0039] As Figure 1 、Figure 2 , Figure 6 As shown in Figure 6 , on the condition that other parts are the same as those in Embodiment 1, the difference between this embodiment and Embodiment 1 lies in that a knocking mechanism is arranged in front of the crushing box 7. A plurality of second bevel gears 14 are fixedly arranged on the second rotating rod 15, and the second bevel gears 14 are meshed with the knocking mechanism. The knocking mechanism includes a rotating member 12, and the rotating member 12 is fixedly connected with the working box 1. A first rotating rod 11 is rotatably connected inside the rotating member 12. A plurality of first stirring rods 37 are fixedly arranged at the left end of the first rotating rod 11. The first stirring rods 37 are made of soft rubber. A first bevel gear 13 is fixedly arranged at the right end of the first rotating rod 11, and the first bevel gear 13 is meshed with the second bevel gear 14;

[0040] When the second motor 17 drives the second rotating rod 15 to rotate, the second rotating rod 15 will also drive the first rotating rod 11 to rotate by means of the first bevel gear 13 and the second bevel gear 14. The first rotating rod 11 drives the first stirring rods 37 to rotate. Since the first stirring rods 37 are made of soft rubber, the first stirring rods 37 are soft rods. When the first stirring rods 37 rotate, they will continuously knock the crushing box 7, causing the crushing box 7 to vibrate, thereby accelerating the discharge of the crushed concrete.

[0041] Embodiment 3:

[0042] As Figure 1 , Figure 2 , Figure 5 shown, on the condition that other parts are the same as those in Embodiment 1, the difference between this embodiment and Embodiment 1 lies in that a third rotating rod 19 is arranged through the second mounting plate 18. The third rotating rod 19 is rotatably connected with the second mounting plate 18. Third bevel gears 20 are fixedly arranged at the top and bottom of the third rotating rod 19. The third bevel gear 20 at the top of the third rotating rod 19 is meshed with the second bevel gear 14. A fourth rotating rod 21 is arranged below the third rotating rod 19. The fourth rotating rod 21 is rotatably connected with the working box 1. A fourth bevel gear 22 is fixedly arranged on the fourth rotating rod 21, and the fourth bevel gear 22 is meshed with the third bevel gear 20 at the bottom of the third rotating rod 19. The left end of the fourth rotating rod 21 is connected with the discharging mechanism. The discharging mechanism includes a collecting box 45. An inclined plate 43 is fixedly arranged inside the collecting box 45 in an inclined manner. A fifth rotating rod 41 is arranged inside the collecting box 45. The fifth rotating rod 41 is rotatably connected with the collecting box 45. A plurality of belt pulleys 40 are fixedly arranged on the plurality of fifth rotating rods 41. The plurality of belt pulleys 40 are connected by a connecting belt 44. A plurality of second stirring rods 42 are fixedly arranged on the fifth rotating rod 41. The second stirring rods 42 are made of magnet. The fifth rotating rod 41 is connected with the fourth rotating rod 21. Discharging ports 46 are arranged through the collecting box 45 and the working box 1. The top of the end of the inclined plate 43 close to the discharging port 46 is flush with the bottom of the discharging port 46;

[0043] The crushed concrete will be collected by the collection box 45. Under the action of the second motor 17, the second motor 17 will drive the third rotating rod 19 to rotate through the second bevel gear 14 and the third bevel gear 20. The third rotating rod 19 will drive the fourth rotating rod 21 to rotate through the third bevel gear 20 and the fourth bevel gear 22. The fourth rotating rod 21 will cause the fifth rotating rod 41 to rotate, and the fifth rotating rod 41 will drive the second stirring rod 42 to rotate, so as to effectively mix the crushed concrete. Moreover, the second stirring rod 42 is made of magnet, which can adsorb the metal in the crushed concrete, facilitating collection;

[0044] The stirred concrete will slide down to the discharge port 46 through the inclined plate 43 for discharge, facilitating collection.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A construction waste crushing and mixing device for renovation construction sites, comprising a working box (1), characterized in that: a crushing box (7) is arranged inside the working box (1), a number of first filter holes (8) are arranged through the crushing box (7), a feeding mechanism is arranged through the left side of the working box (1), the feeding mechanism is fixedly connected with the working box (1), the feeding mechanism is communicated with the left side of the crushing box (7), a crushing mechanism is slidably connected inside the crushing box (7), the right side of the crushing mechanism is connected with a power mechanism, and the power mechanism is fixedly connected with the inner wall of the right side of the cavity of the working box (1); the crushing mechanism includes a rotating disk (9), four rotating shafts (31) are arranged through the rotating disk (9), the rotating shafts (31) are rotatably connected with the rotating disk (9), a first gear (33) is fixedly arranged at the right end of the rotating shaft (31), a mounting disk (30) is fixedly arranged at the left end of the rotating shaft (31), a plurality of crushing cutter heads (29) are fixedly arranged on the mounting disk (30), a plurality of extrusion columns (28) are fixedly arranged on the left side surface of the rotating disk (9), a plurality of conical thorns (25) are fixedly arranged on the extrusion columns (28), a plurality of limiting blocks (24) of different specifications are fixedly arranged on the left edge of the rotating disk (9), a protective cover (26) is fixedly arranged on the right side surface of the rotating disk (9), a third mounting plate (36) is arranged inside the protective cover (26), the third mounting plate (36) is connected with the rotating disk (9) through a mounting column (32), a third motor (35) is mounted on the right side surface of the third mounting plate (36), the power output shaft of the third motor (35) extends to the left side of the third mounting plate (36) and is fixedly connected with a second gear (34), the second gear (34) meshes with the four first gears (33), the rotating disk (9) and the protective cover (26) are both slidably connected with the crushing box (7), and the rotating disk (9) and the protective cover (26) have the same diameter; the power mechanism includes a second mounting plate (18), the second mounting plate (18) is fixedly connected with the inner wall of the right side of the cavity of the working box (1), a first mounting plate (16) is fixedly arranged on the top of the second mounting plate (18), a second motor (17) is fixedly arranged on the surface of the first mounting plate (16), the power output shaft of the second motor (17) extends to the back of the first mounting plate (16) and is connected with a second rotating rod (15), the second rotating rod (15) is rotatably connected with the working box (1), a third connecting plate (39) is fixedly arranged on the second rotating rod (15), one end of the third connecting plate (39) far away from the second rotating rod (15) is rotatably connected with a second connecting plate (38), one end of the second connecting plate (38) far away from the third connecting plate (39) is rotatably connected with a first connecting plate (10), and the first connecting plate (10) is fixedly connected with the protective cover (26).

2. The construction waste crushing and mixing device for renovation construction sites according to claim 1, characterized in that: The feeding mechanism includes a mounting pipe (4), the mounting pipe (4) is fixedly arranged on the working box (1), the mounting pipe (4) is communicated with the crushing box (7), a screw conveyor (5) is arranged inside the mounting pipe (4), a first motor (3) is installed at the left end of the mounting pipe (4), the power output shaft of the first motor (3) extends into the mounting pipe (4) and is connected with the screw conveyor (5), a feeding pipe (2) is installed at the top of the part of the mounting pipe (4) outside the working box (1), a plurality of second filter holes (27) are arranged through the bottom of the part of the mounting pipe (4) inside the working box (1), a connecting shaft is fixedly arranged at the right end of the screw conveyor (5), and a plurality of stirring plates (23) are fixedly arranged on the connecting shaft.

3. The construction waste crushing and mixing equipment for renovation of construction sites according to claim 1, characterized in that: The left side of the crushing box (7) is connected with the working box (1) through a plurality of connecting columns (6).

4. The construction waste crushing and mixing equipment for renovation of construction sites according to claim 3, characterized in that: A knocking mechanism is arranged in front of the crushing box (7), a plurality of second bevel gears (14) are fixedly arranged on the second rotating rod (15), and the second bevel gears (14) are meshed with the knocking mechanism.

5. The construction waste crushing and mixing equipment for renovation of construction sites according to claim 4, characterized in that: The knocking mechanism includes a rotating part (12), the rotating part (12) is fixedly connected with the working box (1), a first rotating rod (11) is rotatably connected inside the rotating part (12), a plurality of first stirring rods (37) are fixedly arranged at the left end of the first rotating rod (11), the first stirring rods (37) are made of soft rubber material, a first bevel gear (13) is fixedly arranged at the right end of the first rotating rod (11), and the first bevel gear (13) is meshed with the second bevel gear (14).

6. The construction waste crushing and mixing equipment for renovation of construction sites according to claim 5, characterized in that: A third rotating rod (19) is arranged through the second mounting plate (18), the third rotating rod (19) is rotatably connected with the second mounting plate (18), third bevel gears (20) are fixedly arranged at the top and bottom of the third rotating rod (19), the third bevel gear (20) at the top of the third rotating rod (19) is meshed with the second bevel gear (14), a fourth rotating rod (21) is arranged below the third rotating rod (19), the fourth rotating rod (21) is rotatably connected with the working box (1), a fourth bevel gear (22) is fixedly arranged on the fourth rotating rod (21), the fourth bevel gear (22) is meshed with the third bevel gear (20) at the bottom of the third rotating rod (19), and the left end of the fourth rotating rod (21) is connected with the discharging mechanism.

7. The construction waste crushing and mixing equipment for renovation of construction sites according to claim 6, characterized in that: The discharging mechanism includes a collection box (45), an inclined plate (43) is fixedly arranged inside the collection box (45) in an inclined manner, a fifth rotating rod (41) is arranged inside the collection box (45), the fifth rotating rod (41) is rotatably connected to the collection box (45), a plurality of belt pulleys (40) are fixedly arranged on the plurality of fifth rotating rods (41), the plurality of belt pulleys (40) are connected by a connecting belt (44), a plurality of second stirring rods (42) are fixedly arranged on the fifth rotating rod (41), the second stirring rods (42) are made of magnet material, and the fifth rotating rod (41) is connected to the fourth rotating rod (21).

8. A construction waste crushing and mixing device for a renovated construction site according to claim 7, wherein: discharge ports (46) are respectively arranged through the collection box (45) and the working box (1), and the top of one end of the inclined plate (43) close to the discharge port (46) is flush with the bottom of the discharge port (46).

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