Concrete mixer

Abstract

The utility model discloses a concrete mixer relates to concrete production equipment technical field, and its technical scheme main points are: including mixing tank, the bottom of mixing tank is provided with speed reducer, and the output of speed reducer is connected with the pivot, and the pivot rotation is connected in the inside of mixing tank, and the one end of pivot away from speed reducer is provided with the installation platform, and is provided with the mixing component and the scraping component on the installation platform, and the mixing component includes two stirring paddles, and the scraping component includes first scraper and second scraper, and first scraper touches with the inside wall of mixing tank, and second scraper touches with the inner bottom wall of mixing tank and can rotate along the encircle direction of pivot. The concrete mixer of the utility model can shovel the concrete adhered on the inside wall of mixing tank by first scraper, thereby guaranteeing the convenience of subsequent cleaning, and can scrape the concrete adhered on the inner bottom wall of mixing tank by second scraper, guaranteeing the smooth rotation of pivot and the mixing quality of concrete.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete production equipment, specifically a concrete mixer. Background Technology

[0002] Concrete is the most widely used man-made civil engineering material in the world. The production process of concrete requires mixing and stirring various substances, thus requiring a concrete mixer. A concrete mixer is a machine that mixes cement, sand and gravel aggregates, and water to produce a concrete mixture.

[0003] Currently, concrete mixers typically consist of a mixing tank, a motor, a shaft, and a mixing paddle. The shaft is connected to the motor, and the mixing paddle is connected to the shaft, both located inside the mixing tank. When in use, the motor is started, driving the mixing paddle to rotate continuously via the shaft, thus mixing the concrete inside the mixing tank with high efficiency. However, in existing concrete mixers, there is usually a gap between the mixing paddle and the inner wall of the mixing tank. During mixing, some concrete cannot be fully mixed and remains on the inner wall of the mixing tank. Once the concrete remaining on the inner wall of the mixing tank hardens, it becomes difficult to clean. Furthermore, once the concrete remaining on the bottom wall of the mixing tank hardens, it can connect the shaft to the bottom wall, affecting the smooth rotation of the shaft and thus impacting the quality of the mixed concrete. Utility Model Content

[0004] The purpose of this invention is to provide a concrete mixer to solve the above-mentioned problems.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a concrete mixer, including a mixing tank, a reduction motor is provided at the bottom of the mixing tank, a rotating shaft is connected to the output end of the reduction motor, the rotating shaft is rotatably connected inside the mixing tank, a mounting platform is provided at the end of the rotating shaft away from the reduction motor, a mixing assembly and a scraping assembly are provided on the mounting platform, the mixing assembly includes two mixing blades, the scraping assembly includes a first scraper and a second scraper, the first scraper abuts against the inner side wall of the mixing tank, and the second scraper abuts against the inner bottom wall of the mixing tank and can rotate along the circumferential direction of the rotating shaft.

[0006] As a further feature of this invention, the stirring paddle, the first scraper, and the second scraper are all detachably mounted on the mounting platform via mounting components.

[0007] As a further feature of this invention, the stirring paddle, the first scraper, and the second scraper all include connecting rods, and the mounting assembly includes a pressure plate for fixing the connecting rods to the side wall of the mounting platform, the pressure plate being fixedly connected to the side wall of the mounting platform by bolts.

[0008] As a further feature of this invention, the pressure plate includes an arc-shaped segment for embedding a connecting rod, with connecting segments at both ends of the arc-shaped segment, the bolt being threadedly connected to the connecting segment, and a threaded hole matching the bolt being provided on the side wall of the mounting platform.

[0009] As a further feature of this invention, the stirring paddle, the first scraper, and the second scraper are all made of stainless steel.

[0010] As a further feature of this invention, the bottom of the mixing tank is provided with a discharge port, and a discharge hopper is provided on the discharge port.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In use, this invention can be activated by starting a reduction motor, which drives the mounting platform to rotate via a rotating shaft. This, in turn, causes the mixing paddles, the first scraper, and the second scraper to rotate. The two mixing paddles can continuously mix the concrete inside the mixing tank with high efficiency. The first scraper scrapes across the inner wall of the mixing tank, removing concrete adhering to the inner wall and allowing it to be re-added to the mixing process. This prevents concrete from remaining and solidifying on the inner wall of the mixing tank, thus ensuring convenient subsequent cleaning. The second scraper scrapes away concrete adhering to the bottom wall of the mixing tank along the circumferential direction of the rotating shaft, preventing the rotating shaft from sticking to the bottom wall of the mixing tank. This ensures smooth rotation of the rotating shaft and guarantees the quality of concrete mixing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0013] Reference numerals in the attached drawings: 1. Mixing tank; 2. Gear motor; 3. Rotary shaft; 4. Mounting platform; 5. Mixing paddle; 6. First scraper; 7. Second scraper; 8. Pressing plate; 9. Bolt; 10. Connecting rod; 11. Arc-shaped section; 12. Connecting section; 13. Discharge hopper. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 As shown, the concrete mixer includes a mixing tank 1. A discharge port is provided at the bottom of the mixing tank 1, and a discharge hopper 13 is installed on the discharge port. When concrete is discharged through the discharge port, it can be guided by the discharge hopper 13 for further discharge, thus ensuring orderly concrete discharge and preventing concrete scattering. A reduction motor 2 is installed at the bottom of the mixing tank 1, and a rotating shaft 3 is connected to the output end of the reduction motor 2. The rotating shaft 3 is rotatably connected inside the mixing tank 1. A mounting platform 4 is provided at the end of the rotating shaft 3 away from the reduction motor 2, and a mixing assembly and a scraping assembly are installed on the mounting platform 4. The mixing assembly includes two mixing blades 5, and the scraping assembly includes a first scraper 6 and a second scraper 7. The first scraper 6 abuts against the inner side wall of the mixing tank 1, and the second scraper 7 abuts against the inner bottom wall of the mixing tank 1. If the shaft 3 can rotate in the surrounding direction, the geared motor 2 can be started during equipment use. The shaft 3 drives the mounting platform 4 to rotate, which in turn drives the mixing paddle 5, the first scraper 6, and the second scraper 7 to rotate. The two mixing paddles 5 can continuously mix the concrete inside the mixing tank 1 with high efficiency. The first scraper 6 scrapes across the inner wall of the mixing tank 1, removing the concrete adhering to the inner wall and adding it back into the mixing process. This prevents the concrete from solidifying on the inner wall of the mixing tank 1, thus ensuring convenient subsequent cleaning. The second scraper 7 scrapes away the concrete adhering to the bottom wall of the mixing tank 1 along the surrounding direction of the shaft 3, preventing the shaft 3 from sticking to the bottom wall of the mixing tank 1. This ensures the smooth rotation of the shaft 3 and guarantees the quality of concrete mixing.

[0016] Please see Figure 2-4As shown, the mixing paddle 5, the first scraper 6, and the second scraper 7 are all detachably mounted on the mounting platform 4 via a mounting assembly. When the mixing paddle 5, the first scraper 6, and the second scraper 7 become worn and deformed due to long-term use, they can be removed from the mounting platform 4 for maintenance or replacement, thereby extending the service life of the equipment. Each of the mixing paddle 5, the first scraper 6, and the second scraper 7 includes a connecting rod 10. The mounting assembly includes a pressure plate 8 for fixing the connecting rod 10 to the side wall of the mounting platform 4, and the pressure plate 8 is fixedly connected to the side wall of the mounting platform 4 by bolts 9. Therefore, during installation, the connecting rod 10 can be fixed to the side wall of the mounting platform 4 by the pressure plate 8, and then tightened by the bolts 9. When it is necessary to disassemble the mixing paddle 5, the first scraper 6, and the second scraper 7... To disassemble the connecting rod 10, simply remove the bolt 9 and then remove the pressure plate 8. This is a convenient and simple operation. The pressure plate 8 includes an arc-shaped section 11 for embedding the connecting rod 10. Connecting sections 12 are provided at both ends of the arc-shaped section 11. The bolt 9 is threaded onto the connecting section 12. A threaded hole matching the bolt 9 is provided on the side wall of the mounting platform 4. By embedding the connecting rod 10 into the arc-shaped section 11 and then screwing the bolt 9 into the threaded hole, the connecting rod 10 can be fixed. The arc-shaped section 11 will firmly abut the connecting rod 10, thus clamping and fixing the connecting rod 10. This ensures the installation firmness of the stirring paddle 5, the first scraper 6, and the second scraper 7. The stirring paddle 5, the first scraper 6, and the second scraper 7 are all made of stainless steel, which has high strength and hardness, is not easy to rust, and has good durability.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concrete mixer, comprising a mixing tank (1), wherein a reduction motor (2) is provided at the bottom of the mixing tank (1), and a rotating shaft (3) is connected to the output end of the reduction motor (2), the rotating shaft (3) being rotatably connected inside the mixing tank (1), characterized in that: The rotating shaft (3) is provided with a mounting platform (4) at the end away from the reduction motor (2). The mounting platform (4) is provided with a mixing component and a scraping component. The mixing component includes two stirring paddles (5). The scraping component includes a first scraper (6) and a second scraper (7). The first scraper (6) abuts against the inner side wall of the mixing tank (1), and the second scraper (7) abuts against the inner bottom wall of the mixing tank (1) and can rotate along the circumferential direction of the rotating shaft (3).

2. The concrete mixer according to claim 1, characterized in that: The stirring paddle (5), the first scraper (6), and the second scraper (7) are all detachably mounted on the mounting platform (4) via mounting components.

3. The concrete mixer according to claim 2, characterized in that: The stirring paddle (5), the first scraper (6) and the second scraper (7) all include a connecting rod (10). The mounting assembly includes a pressure plate (8) for fixing the connecting rod (10) to the side wall of the mounting platform (4). The pressure plate (8) is fixedly connected to the side wall of the mounting platform (4) by bolts (9).

4. The concrete mixer according to claim 3, characterized in that: The pressure plate (8) includes an arc-shaped segment (11) for embedding the connecting rod (10), and connecting segments (12) are provided at both ends of the arc-shaped segment (11). The bolt (9) is threadedly connected to the connecting segment (12), and the mounting platform (4) has a threaded hole on its side wall that matches the bolt (9).

5. The concrete mixer according to claim 1, characterized in that: The stirring paddle (5), the first scraper (6), and the second scraper (7) are all made of stainless steel.

6. The concrete mixer according to claim 1, characterized in that: The bottom of the mixing tank (1) is provided with a discharge port, and a discharge hopper (13) is provided on the discharge port.

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