A construction waste pretreatment and leveling device
By using the combined transmission of crushing rollers, reciprocating screws and racks, as well as the design of turning columns and spreading plates, the problem of uneven spreading of construction waste is solved, achieving efficient waste transportation and equipment protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANJIAN GRP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing construction waste leveling devices are unable to effectively handle waste of varying sizes, resulting in poor leveling quality, which affects conveying efficiency and equipment wear and tear.
The crushing roller is used to crush construction waste, and the oscillation of the discharge pipe is controlled by the meshing transmission of the reciprocating screw and rack. With the use of the turning column and the spreading plate, the construction waste is evenly distributed and spread.
It achieves uniform distribution and efficient leveling of construction waste during transportation, reduces transportation resistance, improves transportation efficiency, and reduces equipment wear.
Smart Images

Figure CN224422985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction waste treatment technology, and more specifically, to a construction waste pretreatment and leveling device. Background Technology
[0002] Construction waste refers to slag, excavated soil, waste materials, silt, and other waste generated during the construction, laying, demolition, and repair of various buildings, structures, and pipelines by construction units or individuals. The main function of construction waste pretreatment and leveling is to evenly spread waste of different volumes during transportation, preventing stacking and overlapping on the conveyor belt due to large volume differences, thus avoiding localized overload or jamming. Furthermore, even leveling results in more uniform waste density, reducing transportation resistance, improving transport efficiency, and lowering equipment wear. However, existing construction waste varies in size, making it difficult to guarantee the quality of leveling. Additionally, relying solely on a leveling plate is insufficient for effective leveling. Therefore, we propose a construction waste pretreatment and leveling device. Utility Model Content
[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a pre-treatment and leveling device for construction waste.
[0004] To solve the above problems, the present invention adopts the following technical solution:
[0005] A construction waste pretreatment and leveling device includes a conveyor frame, a conveying mechanism, a turning mechanism, and a leveling mechanism. Two columns are fixedly connected to the top surface of the conveyor frame. A crushing box is fixedly connected to the inner side of the top of the two columns. Two crushing rollers are rotatably connected to the inner cavity of the crushing box. One end of each crushing roller's shaft extends to the outside of the crushing box and is fixedly fitted with a first gear. The two first gears mesh with each other. A second reduction motor is fixedly installed on the outside of the crushing box, and the output shaft of the second reduction motor is connected via a coupling. The crushing box is connected to the other end of a crushing roller shaft. A support frame is fixedly connected between the two columns. A discharge pipe is rotatably connected to the support frame. The bottom end of the crushing box extends into the inner cavity of the discharge pipe. A second gear is fixedly sleeved on the outer side of the top end of the discharge pipe. Two support seats are fixedly connected to the top surface of the support frame. A reciprocating screw is rotatably connected between the two support seats. A rack is threaded onto the outer side of the reciprocating screw. The rack and the second gear mesh with each other. A third geared motor is fixedly installed on the outer side of one of the support seats. The output shaft of the third geared motor is connected to the end of the reciprocating screw through a coupling.
[0006] As a preferred embodiment of this utility model, the conveying mechanism includes two conveying rollers rotatably connected to the inner side of the conveying frame and a first reduction motor fixedly installed on the outer side of the conveying frame. A conveyor belt is driven between the two conveying rollers, and the two sides of the conveyor belt are respectively in contact with the inner wall of the conveying frame. The output shaft of the first reduction motor is connected to one end of a conveying roller shaft through a coupling.
[0007] As a preferred embodiment of this utility model, the flipping mechanism includes a first upright fixedly connected to the top surface of the conveyor frame, a fourth reduction motor fixedly installed on the top surface of the first upright, the output shaft of the fourth reduction motor extending to the bottom of the first upright and fixedly connected to a turntable, a plurality of flipping columns fixedly connected to the bottom surface of the turntable, and the bottom end of the flipping columns abutting against the top surface of the conveyor belt.
[0008] As a preferred embodiment of this utility model, the leveling mechanism includes a second upright fixedly connected to the top surface of the conveyor frame. An electric telescopic rod is fixedly installed on the top surface of the second upright. The output end of the electric telescopic rod extends to the bottom of the second upright and is fixedly connected to a mounting box. A fifth reduction motor is fixedly installed in the inner cavity of the mounting box. The output shaft of the fifth reduction motor extends to the bottom of the mounting box and is fixedly connected to a rotating plate. A leveling plate is fixedly connected to the bottom surface of the rotating plate.
[0009] In a preferred embodiment of this utility model, the bottom surface of the rack and the top surface of the support frame are in contact.
[0010] In a preferred embodiment of this utility model, the inner wall of the top of the discharge pipe and the outer side of the bottom of the crushing box are in contact.
[0011] The advantages of this utility model are:
[0012] (1) In this utility model, the two crushing rollers are driven to rotate in opposite directions by the cooperation of the second reduction motor and the two first gears. The two crushing rollers crush the construction waste put into the crushing box, ensuring that the construction waste can be smoothly spread out afterward. In addition, the third reduction motor drives the reciprocating screw to rotate. The meshing transmission between the reciprocating screw and the rack drives the rack to move back and forth. The meshing transmission between the rack and the second gear drives the discharge pipe to swing horizontally back and forth, thereby changing the position of the construction waste falling in the discharge pipe, so that the construction waste is evenly distributed on the conveyor belt. It has good practicality.
[0013] (2) In this utility model, a conveyor belt is used to transport construction waste. The fourth reduction motor drives the turntable and the turning column to rotate. The turning column scrapes the construction waste on the conveyor belt so that the construction waste becomes uniform on the conveyor belt. In addition, the fifth reduction motor drives the rotating plate and the spreading plate to rotate. The spreading plate flattens the construction waste on the conveyor belt. Through multiple methods, the construction waste is gradually and evenly flattened to ensure the quality of the pre-treatment and flattening of construction waste. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;
[0016] Figure 3 This is a schematic cross-sectional view of the present invention;
[0017] Figure 4 This is a schematic diagram of the crushing box of this utility model;
[0018] Figure 5 This is a cross-sectional schematic diagram of the crushing box of this utility model.
[0019] Explanation of the labels in the diagram:
[0020] 1. Conveyor frame; 2. Tilting mechanism; 3. Leveling mechanism; 4. Conveyor roller; 5. Conveyor belt; 6. First geared motor; 7. Column; 8. Crushing box; 9. Crushing roller; 10. Second geared motor; 11. First gear; 12. Support frame; 13. Discharge pipe; 14. Second gear; 15. Support base; 16. Reciprocating screw; 17. Rack; 18. Third geared motor; 19. Conveying mechanism; 20. First upright; 21. Fourth geared motor; 22. Turntable; 23. Tilting column; 24. Second upright; 25. Electric telescopic rod; 26. Mounting box; 27. Fifth geared motor; 28. Rotating plate; 29. Leveling plate. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Example:
[0025] Please see Figure 1-5 A construction waste pretreatment and leveling device includes a conveyor frame 1, a conveying mechanism 19, a turning mechanism 2, and a leveling mechanism 3. Two columns 7 are fixedly connected to the top surface of the conveyor frame 1. A crushing box 8 is fixedly connected to the inner side of the top of the two columns 7. Two crushing rollers 9 are rotatably connected to the inner cavity of the crushing box 8. One end of the shaft of each crushing roller 9 extends to the outside of the crushing box 8 and is fixedly fitted with a first gear 11. The two first gears 11 mesh with each other. A second reduction motor 10 is fixedly installed on the outside of the crushing box 8. The output shaft of the second reduction motor 10 is connected to a crushing roller 9 via a coupling. The other end of the shaft is connected to a support frame 12 fixedly connected between the two columns 7. A discharge pipe 13 is rotatably connected to the support frame 12. The bottom end of the crushing box 8 extends into the inner cavity of the discharge pipe 13. A second gear 14 is fixedly sleeved on the outer side of the top end of the discharge pipe 13. Two support seats 15 are fixedly connected to the top surface of the support frame 12. A reciprocating screw 16 is rotatably connected between the two support seats 15. A rack 17 is threaded on the outer side of the reciprocating screw 16. The rack 17 and the second gear 14 mesh with each other. A third geared motor 18 is fixedly installed on the outer side of one support seat 15. The output shaft of the third geared motor 18 is connected to the end of the reciprocating screw 16 through a coupling.
[0026] In this embodiment, the rack 17 is provided with a transmission hole that matches the reciprocating lead screw 16, ensuring that the rack 17 and the reciprocating lead screw 16 can transmit power smoothly.
[0027] For details, please refer to Figures 1 to 3 The conveying mechanism 19 includes two conveying rollers 4 rotatably connected to the inner side of the conveying frame 1 and a first reduction motor 6 fixedly installed on the outer side of the conveying frame 1. A conveyor belt 5 is driven between the two conveying rollers 4. The two sides of the conveyor belt 5 are respectively attached to the inner wall of the conveying frame 1. The output shaft of the first reduction motor 6 is connected to one end of the shaft of a conveying roller 4 through a coupling.
[0028] In this embodiment, the inner side of the conveyor frame 1 is used to limit the side of the conveyor belt 5 to prevent construction waste from falling from the side of the conveyor belt 5.
[0029] For details, please refer to Figures 1 to 3 The flipping mechanism 2 includes a first upright 20 fixedly connected to the top surface of the conveyor frame 1. A fourth reduction motor 21 is fixedly installed on the top surface of the first upright 20. The output shaft of the fourth reduction motor 21 extends to the bottom of the first upright 20 and is fixedly connected to a turntable 22. A plurality of flipping columns 23 are fixedly connected to the bottom surface of the turntable 22. The bottom end of the flipping column 23 is in contact with the top surface of the conveyor belt 5.
[0030] For details, please refer to Figures 1 to 3 The leveling mechanism 3 includes a second upright 24 fixedly connected to the top surface of the conveyor frame 1. An electric telescopic rod 25 is fixedly installed on the top surface of the second upright 24. The output end of the electric telescopic rod 25 extends to the bottom of the second upright 24 and is fixedly connected to a mounting box 26. A fifth reduction motor 27 is fixedly installed in the inner cavity of the mounting box 26. The output shaft of the fifth reduction motor 27 extends to the bottom of the mounting box 26 and is fixedly connected to a rotating plate 28. A leveling plate 29 is fixedly connected to the bottom surface of the rotating plate 28.
[0031] In this embodiment, the height of the mounting box 26, the rotating plate 28 and the spreading plate 29 are adjusted by the electric telescopic rod 25, and the construction waste is spread to different heights by the spreading plate 29.
[0032] For details, please refer to Figure 4 The bottom surface of the rack 17 and the top surface of the support frame 12 are in contact.
[0033] In this embodiment, the top surface of the support frame 12 is used to limit the rack 17, so that the rack 17 can only move along the axial direction of the reciprocating screw 16.
[0034] For details, please refer to Figure 5 The inner wall at the top of the discharge pipe 13 is in contact with the outer side of the bottom of the crushing box 8.
[0035] In this embodiment, it is ensured that the construction waste crushed inside the crushing chamber 8 can fall smoothly into the discharge pipe 13.
[0036] Working principle: In operation, the first reduction motor 6 is started to drive the conveyor roller 4 and conveyor belt 5 to rotate. At the same time, the second reduction motor 10 is started to drive one crushing roller 9 and one first gear 11 to rotate. Through the meshing transmission between the two first gears 11, the other first gear 11 and the other crushing roller 9 are driven to rotate. At this time, the construction waste to be flattened is put into the crushing box 8, and the two crushing rollers 9 crush the construction waste. The crushed construction waste falls into the discharge pipe 13. Then, the third reduction motor 18 is started to drive the reciprocating screw 16 to rotate. Through the meshing transmission between the reciprocating screw 16 and the rack 17, the rack 17 is driven to move along the axial direction of the reciprocating screw 16. The rack 17 and the second gear 14 are used to drive the construction waste to rotate. The meshing transmission drives the discharge pipe 13 to swing horizontally back and forth, thereby changing the position of the construction waste falling in the discharge pipe 13, so that the construction waste is evenly distributed on the conveyor belt 5. Then, the construction waste is transported by the conveyor belt 5. At the same time, the fourth reduction motor 21 is started to drive the turntable 22 and the turning column 23 to rotate. The turning column 23 scrapes the construction waste on the conveyor belt 5 to make the construction waste evenly distributed on the conveyor belt 5. Finally, the fifth reduction motor 27 is started to drive the rotating plate 28 and the spreading plate 29 to rotate. At the same time, the electric telescopic rod 25 is started to drive the mounting box 26, the rotating plate 28 and the spreading plate 29 to move down to a suitable height, so that the spreading plate 29 flattens the construction waste on the conveyor belt 5.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A building waste pretreatment spreading device comprising a conveyor frame (1), characterized in that: The conveyor frame (1) is provided with a conveying mechanism (19), a flipping mechanism (2), and a leveling mechanism (3). Two columns (7) are fixedly connected to the top surface of the conveyor frame (1). A crushing box (8) is fixedly connected to the inner side of the top of the two columns (7). Two crushing rollers (9) are rotatably connected to the inner cavity of the crushing box (8). One end of the shaft of each crushing roller (9) extends to the outside of the crushing box (8) and is fixedly fitted with a first gear (11). The two first gears (11) mesh with each other. A second reduction motor (10) is fixedly installed on the outside of the crushing box (8). The output shaft of the second reduction motor (10) is connected to the other end of the shaft of a crushing roller (9) through a coupling. A support frame (12) is fixedly connected between each of the columns (7). A discharge pipe (13) is rotatably connected to the support frame (12). The bottom end of the crushing box (8) extends into the inner cavity of the discharge pipe (13). A second gear (14) is fixedly sleeved on the outer side of the top end of the discharge pipe (13). Two support seats (15) are fixedly connected to the top surface of the support frame (12). A reciprocating screw (16) is rotatably connected between the two support seats (15). A rack (17) is threaded onto the outer side of the reciprocating screw (16). The rack (17) meshes with the second gear (14). A third geared motor (18) is fixedly installed on the outer side of one of the support seats (15). The output shaft of the third geared motor (18) is connected to the end of the reciprocating screw (16) through a coupling.
2. The construction waste pretreatment spreading device according to claim 1, characterized in that: The conveying mechanism (19) includes two conveying rollers (4) rotatably connected to the inside of the conveying frame (1) and a first geared motor (6) fixedly installed on the outside of the conveying frame (1). A conveyor belt (5) is connected between the two conveying rollers (4). The two sides of the conveyor belt (5) are respectively attached to the inner wall of the conveying frame (1). The output shaft of the first geared motor (6) is connected to one end of the shaft of a conveying roller (4) through a coupling.
3. The construction waste pretreatment spreading device according to claim 2, characterized in that: The flipping mechanism (2) includes a first upright (20) fixedly connected to the top surface of the conveyor frame (1). A fourth reduction motor (21) is fixedly installed on the top surface of the first upright (20). The output shaft of the fourth reduction motor (21) extends to the bottom of the first upright (20) and is fixedly connected to a turntable (22). A plurality of flipping columns (23) are fixedly connected to the bottom surface of the turntable (22). The bottom end of the flipping column (23) is in contact with the top surface of the conveyor belt (5).
4. The construction waste pretreatment spreading device according to claim 3, characterized in that: The leveling mechanism (3) includes a second upright (24) fixedly connected to the top surface of the conveyor frame (1). An electric telescopic rod (25) is fixedly installed on the top surface of the second upright (24). The output end of the electric telescopic rod (25) extends to the bottom of the second upright (24) and is fixedly connected to a mounting box (26). A fifth reduction motor (27) is fixedly installed in the inner cavity of the mounting box (26). The output shaft of the fifth reduction motor (27) extends to the bottom of the mounting box (26) and is fixedly connected to a rotating plate (28). A leveling plate (29) is fixedly connected to the bottom surface of the rotating plate (28).
5. The construction waste pretreatment spreading device according to claim 1, characterized in that: The bottom surface of the rack (17) and the top surface of the support frame (12) are in contact.
6. The construction waste pretreatment spreading device according to claim 1, characterized in that: The inner wall at the top of the discharge pipe (13) and the outer side of the bottom of the crushing box (8) are in contact.