Residual concrete cleaning structure for mixer drum
By installing an angle- and height-adjustable cleaning brush structure inside the mixer truck drum, and using an electric cylinder and lifting assembly to achieve automated cleaning, the problem of removing residual concrete inside the drum is solved, reducing manual labor intensity and improving concrete quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YIOU MUNICIPAL ENGINEERING CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-16
Smart Images

Figure CN224360424U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of concrete mixer trucks, and in particular relates to a structure for cleaning residual concrete inside the drum of a mixer truck. Background Technology
[0002] After a concrete mixer truck has finished transporting concrete, concrete residue remains inside the drum. If not cleaned promptly, this residue will gradually harden and solidify. When new concrete is loaded again, these hardened residues will mix in, affecting key quality indicators. The concrete adhering to the drum is typically removed manually by drilling into the drum and tapping it. Therefore, we designed a concrete cleaning structure for the mixer truck drum, using an angle- and height-adjustable cleaning brush. This brush, combined with a trolley, extends into the drum to scrub, removing the concrete adhering to the inner wall and reducing manual labor intensity. Utility Model Content
[0003] The purpose of this invention is to provide a structure for cleaning residual concrete inside the drum of a concrete mixer truck. It features a cleaning brush with adjustable angle and height, which, when used with a trolley, extends into the drum of the mixer truck to clean it, causing the concrete adhering to the inner wall of the drum to fall off, thus reducing the intensity of manual labor and solving the aforementioned technical problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a residual concrete cleaning structure inside the mixer truck drum, which includes a movable seat located on the side of the mixer truck, an inverted U-shaped frame fixedly connected to the top of the movable seat, a U-shaped plate slidably connected to the inner cavity of the inverted U-shaped frame, an L-shaped plate fixedly connected to one side of the U-shaped plate, a shaft fixedly connected to the inner cavity of the U-shaped plate, a cleaning component rotatably connected to the surface of the shaft, the cleaning component including a rotating frame rotatably connected to the surface of the shaft, a rotatable long brush penetrating one side of the rotating frame, a drive motor fixedly installed in the inner cavity of the rotating frame, the output shaft of the drive motor fixedly connected to the long brush, one end of the long brush extending into the inner cavity of the mixing tank on the mixer truck, a rotatable electric cylinder installed on the inner side of the L-shaped plate through a rotating shaft, the output end of the electric cylinder rotatably connected to the rotating frame, and a lifting component provided between the U-shaped plate and the inverted U-shaped frame.
[0005] Preferably, the lifting assembly includes a threaded sleeve rotatably connected to the top of the inverted U-shaped frame, the inner cavity of the threaded sleeve being threadedly connected to a threaded rod, the bottom of the threaded rod penetrating to the inner side of the inverted U-shaped frame and being fixedly connected to the U-shaped plate.
[0006] Preferably, a geared motor is fixedly installed on the top of the inverted U-shaped frame, and the output end of the geared motor is sleeved on the surface of the threaded sleeve and fixedly connected to the threaded sleeve.
[0007] Preferably, a guide rod is fixedly connected to the top of the U-shaped plate, and the top of the guide rod extends through to the top of the inverted U-shaped frame and is slidably connected to the inverted U-shaped frame.
[0008] Preferably, two symmetrical diagonal braces are fixedly connected to one side of the inverted U-shaped frame, and one end of each diagonal brace is fixedly connected to the movable seat.
[0009] The beneficial effects of this utility model are:
[0010] 1. This utility model uses an electric cylinder to push the cleaning component to adjust its angle around the shaft. The lifting component can also move the U-shaped plate up and down, thereby moving the cleaning component up and down so that the end of the cleaning component is aligned with the feed inlet of the mixer truck. Then, with the movement of the moving seat, the long brush is inserted into the drum. The drive motor drives the long brush to clean the inner wall of the drum and the spiral blades. This achieves the purpose of using an angle-adjustable and height-adjustable cleaning brush, which, with the help of the trolley, extends into the drum of the mixer truck to clean it, causing the concrete adhering to the inner wall of the drum to fall off, thus reducing the intensity of manual labor.
[0011] 2. By setting a guide rod, the U-shaped plate moves up and down, causing the guide rod to slide on the inverted U-shaped frame, thereby preventing the U-shaped plate from rotating randomly and improving the stability of the U-shaped plate and the cleaning component moving up and down. Attached Figure Description
[0012] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0013] Figure 1 This is a schematic diagram of one embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of a cleaning brush device according to an embodiment of the present invention;
[0015] Figure 3 This is a bottom-view perspective view of a U-shaped plate and an L-shaped plate according to an embodiment of the present invention;
[0016] Figure 4 This is a three-dimensional schematic diagram of a cleaning component according to an embodiment of the present invention.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Movable seat, 2. Inverted U-shaped frame, 3. U-shaped plate, 4. L-shaped plate, 5. Shaft, 6. Cleaning assembly, 61. Rotating frame, 62. Long brush, 63. Drive motor, 7. Electric cylinder, 8. Lifting assembly, 81. Threaded sleeve, 82. Threaded rod, 83. Gear motor, 84. Guide rod, 9. Diagonal brace. Detailed Implementation
[0019] In the following description, embodiments of the present invention’s structure for cleaning residual concrete inside the mixer truck drum will be described with reference to the accompanying drawings.
[0020] Figure 1-4 This invention illustrates a concrete cleaning structure for the inside of a mixer truck drum according to an embodiment of the present invention. It includes a movable seat 1 located on the side of the mixer truck. An inverted U-shaped frame 2 is fixedly connected to the top of the movable seat 1. Two symmetrical diagonal braces 9 are fixedly connected to one side of the inverted U-shaped frame 2, with one end of each brace fixedly connected to the movable seat 1. A U-shaped plate 3 is slidably connected to the inner cavity of the inverted U-shaped frame 2. An L-shaped plate 4 is fixedly connected to one side of the U-shaped plate 3. A shaft 5 is fixedly connected to the inner cavity of the U-shaped plate 3. A cleaning assembly 6 is rotatably connected to the surface of the shaft 5. The cleaning assembly 6 includes a rotating frame 61 rotatably connected to the surface of the shaft 5. A rotatable long-handled brush 62 is provided through one side of the rotating frame 61. A drive motor 63 is fixedly installed inside the rotating frame 61. The output shaft of the drive motor 63 is fixedly connected to the long-handled brush 62. One end of the long-handled brush 62 extends into the inner cavity of the mixing tank on the mixer truck. A rotatable electric motor is mounted on the inner side of the L-shaped plate 4 via a rotating shaft. The output end of the electric cylinder 7 is rotatably connected to the rotating frame 61. A lifting assembly 8 is provided between the U-shaped plate 3 and the inverted U-shaped frame 2. The lifting assembly 8 includes a threaded sleeve 81 rotatably connected to the top of the inverted U-shaped frame 2. A threaded rod 82 is threadedly connected to the inner cavity of the threaded sleeve 81. The bottom of the threaded rod 82 passes through to the inner side of the inverted U-shaped frame 2 and is fixedly connected to the U-shaped plate 3. A reduction motor 83 is fixedly installed on the top of the inverted U-shaped frame 2. The output end of the reduction motor 83 is sleeved on the surface of the threaded sleeve 81 and is fixedly connected to the threaded sleeve 81. A guide rod 84 is fixedly connected to the top of the U-shaped plate 3. The top of the guide rod 84 passes through to the top of the inverted U-shaped frame 2 and is slidably connected to the inverted U-shaped frame 2. With the setting of the guide rod 84, the guide rod 84 slides on the inverted U-shaped frame 2 during the up and down movement of the U-shaped plate 3, thereby preventing the U-shaped plate 3 from rotating randomly and improving the stability of the up and down movement of the U-shaped plate 3 and the cleaning assembly 6.
[0021] Working principle: When this utility model is in use, the electric cylinder 7 drives the rotating frame 61 to rotate around the shaft 5. The rotating frame 61 drives the long brush 62 and the drive motor 63 to rotate. The angle of the long brush 62 is adjusted. Then, the reduction motor 83 drives the threaded sleeve 81 to rotate, which in turn drives the threaded rod 82 to move up and down. The reduction motor 83 drives the U-shaped plate 3 to move up and down, and the U-shaped plate 3 drives the cleaning component 6 to move up and down, so that the end of the long brush 62 is aligned with the feed port of the drum on the mixer truck. Then, the moving seat 1 moves, so that the long brush 62 extends into the drum. The drive motor 63 drives the long brush 62 to work and wash the spiral blades on the inner wall of the drum. During this period, the lifting component 8 and the electric cylinder 7 adjust the height and angle of the cleaning component 6, so that the inside of the mixer truck is thoroughly washed. After washing, the moving seat 1 moves, so that the long brush 62 is pulled out of the outside of the mixer truck drum. The mixer truck then discharges the concrete that has fallen out of the drum.
[0022] In summary: This concrete cleaning structure inside the mixer truck drum can adjust the angle of the cleaning component 6 around the shaft 5 by using the electric cylinder 7. Furthermore, the lifting component 8 moves the U-shaped plate 3 up and down, thereby moving the cleaning component 6 up and down, aligning its end with the mixer truck's inlet. Then, in conjunction with the movement of the moving seat 1, the long-handled brush 62 extends into the drum. The drive motor 63 drives the long-handled brush 62 to clean the inner wall of the drum and the spiral blades. This achieves the goal of using an angle- and height-adjustable cleaning brush, combined with the movement of the trolley, to clean inside the mixer truck drum, causing concrete adhering to the inner wall of the drum to fall off, thus reducing manual labor intensity.
Claims
1. A structure for cleaning residual concrete inside a concrete mixer truck drum, characterized in that, The system includes a movable seat (1) located on the side of the mixer truck. An inverted U-shaped frame (2) is fixedly connected to the top of the movable seat (1). A U-shaped plate (3) is slidably connected to the inner cavity of the inverted U-shaped frame (2). An L-shaped plate (4) is fixedly connected to one side of the U-shaped plate (3). A shaft (5) is fixedly connected to the inner cavity of the U-shaped plate (3). A cleaning assembly (6) is rotatably connected to the surface of the shaft (5). The cleaning assembly (6) includes a rotating frame (61) rotatably connected to the surface of the shaft (5). One side of the rotating frame (61)... A rotatable long rod brush (62) is provided through the rotating frame (61). A drive motor (63) is fixedly installed in the inner cavity of the rotating frame (61). The output shaft of the drive motor (63) is fixedly connected to the long rod brush (62). One end of the long rod brush (62) extends into the inner cavity of the mixing tank on the mixer truck. A rotatable electric cylinder (7) is installed on the inner side of the L-shaped plate (4) through a rotating shaft. The output end of the electric cylinder (7) is rotatably connected to the rotating frame (61). A lifting assembly (8) is provided between the U-shaped plate (3) and the inverted U-shaped frame (2).
2. The residual concrete cleaning structure inside the mixer truck drum according to claim 1, characterized in that, The lifting assembly (8) includes a threaded sleeve (81) rotatably connected to the top of the inverted U-shaped frame (2). The inner cavity of the threaded sleeve (81) is threadedly connected to a threaded rod (82). The bottom of the threaded rod (82) extends through to the inner side of the inverted U-shaped frame (2) and is fixedly connected to the U-shaped plate (3).
3. The residual concrete cleaning structure inside the mixer truck drum according to claim 2, characterized in that, A geared motor (83) is fixedly installed on the top of the inverted U-shaped frame (2). The output end of the geared motor (83) is sleeved on the surface of the threaded sleeve (81) and fixedly connected to the threaded sleeve (81).
4. The residual concrete cleaning structure inside the mixer truck drum according to claim 3, characterized in that, The top of the U-shaped plate (3) is fixedly connected to a guide rod (84), the top of the guide rod (84) extends through to the top of the inverted U-shaped frame (2) and is slidably connected to the inverted U-shaped frame (2).
5. The residual concrete cleaning structure inside the mixer truck drum according to claim 4, characterized in that, Two symmetrical diagonal braces (9) are fixedly connected to one side of the inverted U-shaped frame (2), and one end of the diagonal brace (9) is fixedly connected to the movable seat (1).