Concrete mixer with self-cleaning function

Abstract

The utility model relates to a concrete stirrer with a self-cleaning function, which comprises a cylinder body, a stirring paddle vertically and rotatably arranged in the middle of the cylinder body, and a stirring motor arranged at the top of the cylinder body and used for driving the stirring paddle to rotate, and a cleaning ring capable of lifting and staggering the stirring paddle is arranged on the inner side of the cylinder body. When the self-cleaning device ascends and descends, the inner cleaning brush and the outer surface of a stirring paddle can be used for all-around contact brushing, meanwhile, a rubber scraping pad can be used for downwards scraping viscous materials on the inner wall of the barrel, and the self-cleaning efficiency and effect of the concrete stirring equipment can be greatly improved through the arrangement; secondly, the arranged guide pipe not only can play a role in guiding lifting of the cleaning ring, but also can be connected with the water hole through the pipe cavity, water in an external water tank is fed into the cylinder body for cleaning, in addition, the water hole is further provided with a spray head, the spray head can be arranged towards the stirring paddle, so that the stirring paddle can be sprayed and washed during lifting, and the cleaning efficiency is improved. And the cleaning effect is further improved.

Description

Technical Field

[0001] This utility model relates to a concrete mixer with self-cleaning function, and is situated in the technical field of concrete mixing equipment. Background Technology

[0002] In concrete mixers, traditional cleaning methods rely on manual hand-held water hose adjustments, which are inefficient and fail to cover the mixing blades and dead corners of the drum wall. Some technologies attempt to use telescopic water hoses (such as a telescopic hose connected to the tail), but these still require separate equipment and cannot be integrated with the mixing structure. In addition, mechanical scraping solutions, such as rotating shafts driving scrapers (with no dead corners in their revolution and rotation design), centrifugal force driving mixing plates to scrape the inner wall, or top rod impact combined with scraper cleaning, can reduce residue, but have drawbacks such as complex structure, easy wear of parts (such as grinding wheel cleaning), or insufficient impact force. Although some cleaning methods improve the effect by controlling water pressure in stages, they cannot simultaneously solve the problem of deposits on the mixing blades and drum wall, and additional mechanical cleaning is still required after the residual concrete clumps together. The overall cleaning efficiency and performance of the equipment need to be improved. Therefore, it is necessary to propose a concrete mixer with self-cleaning function for improvement. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a concrete mixer with self-cleaning function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a concrete mixer with self-cleaning function, comprising a cylinder, a stirring paddle vertically rotatably installed in the middle of the cylinder, and a stirring motor installed on the top of the cylinder for driving the stirring paddle to rotate. A cleaning ring is provided on the inner side of the cylinder and is staggered and sleeved on the outer periphery of the stirring paddle.

[0005] The inner ring of the cleaning ring is fixed with a number of inner cleaning brushes, and the inner cleaning brushes contact the outer surface of the stirring paddle.

[0006] The outer ring of the cleaning ring is equipped with a rubber scraper pad, which contacts the inner wall of the cylinder. When the cleaning ring moves downward, the rubber scraper pad scrapes and cleans the inner wall of the cylinder, while the inner cleaning brush brushes the surface of the stirring paddle.

[0007] A further improvement is that multiple conduits are fixed in a ring array on the upper side of the cleaning ring, and each conduit is arranged to pass through the upper side of the cylinder.

[0008] A further improvement is that the inner side of the conduit is provided with a cavity, the cleaning ring has multiple water holes that communicate with the cavity, the top of the conduit is equipped with a water pipe that communicates with the cavity, and the outer end of the water pipe is connected to a water tank with a water pump.

[0009] A further improvement is that each of the water holes is equipped with a nozzle at the bottom corresponding to the lower side of the cleaning ring, and each nozzle is positioned facing the center of the agitator.

[0010] A further improvement is that a screw jack is installed at the top of the cylinder, and a screw is connected to the middle of the screw jack. The screw passes through the upper side of the cylinder and is connected to the upper side of the cleaning ring.

[0011] A further improvement is that a feed hopper is installed on one side of the cylinder, and the cleaning ring is located above the feed hopper on one side.

[0012] A further improvement is that an electromagnetic discharge valve is installed at the bottom of the cylinder, which is located directly below the agitator.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This utility model mainly improves the self-cleaning efficiency and effect of concrete mixing equipment by setting a cleaning ring that can be raised and lowered and staggered from the mixing paddle inside the cylinder. When it is raised and lowered, the inner cleaning brush can contact and brush the outer surface of the mixing paddle in all directions. At the same time, the rubber scraper pad can scrape off the sticky material from the inner wall of the cylinder downwards.

[0015] Secondly, the conduit not only guides the lifting and lowering of the cleaning ring, but also connects to the water hole through the tube to send water from the external water tank into the cylinder for cleaning. In addition, the water hole is equipped with a nozzle that can be directed towards the agitator, so that the agitator can be sprayed during lifting and lowering, further improving the cleaning effect. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A partial structural diagram of A in the middle;

[0019] Figure 3 This is a top view of the cleaning ring and lead screw of this utility model.

[0020] In the diagram: 1. Cylinder; 2. Agitator; 3. Agitator motor; 4. Feed hopper; 5. Electromagnetic discharge valve; 6. Cleaning ring; 601. Water hole; 602. Nozzle; 61. Inner cleaning brush; 62. Guide tube; 620. Pipe cavity; 63. Screw; 64. Rubber scraper; 7. Screw jack; 8. Water tank; 81. Water pump; 82. Water pipe. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figures 1-3 This utility model provides a technical solution for a concrete mixer with self-cleaning function: it includes a cylinder 1, a vertically rotating mixing paddle 2 installed in the middle of the cylinder 1, and a mixing motor 3 installed on the top of the cylinder 1 to drive the mixing paddle 2 to rotate. A cleaning ring 6 is provided on the inner side of the cylinder 1, and the cleaning ring 6 is staggered and sleeved on the outer circumference of the mixing paddle 2 so that there is no mechanical interference when the cleaning ring 6 moves downward. Several inner cleaning brushes 61 are fixed in the inner ring of the cleaning ring 6 and contact the outer surface of the mixing paddle 2 through the inner cleaning brushes 61. A rubber scraper pad 64 is provided in the outer ring of the cleaning ring 6 and contacts the inner wall of the cylinder 1 through the rubber scraper pad 64. When the cleaning ring 6 moves downward, the rubber scraper pad 64 scrapes and cleans the inner wall of the cylinder 1, while the inner cleaning brushes 61 brush the surface of the mixing paddle 2, which greatly improves the self-cleaning effect of the equipment. Six guide tubes 62 are fixed in a ring array on the upper side of the cleaning ring 6, and each guide tube 62 is provided through the upper side of the cylinder 1 to guide the lifting of the cleaning ring 6.

[0023] Furthermore, the inner side of the conduit 62 is provided with a cavity 620, and the cleaning ring 6 has multiple water holes 601 that communicate with the cavity 620. A water pipe 82 that communicates with the cavity 620 is installed at the top of the conduit 62, and a water tank 8 with a water pump 81 is connected to the outer end of the water pipe 82. In this way, the water tank 8 can send water through the water holes 601, which can make the cleaning more effective. Furthermore, a nozzle 602 is installed at the bottom of each water hole 601 corresponding to the lower side of the cleaning ring 6. Each nozzle 602 is set towards the middle of the agitator 2. The nozzle 602 is a high-pressure nozzle, so that the high-pressure water generated by the nozzle 602 can directly rinse the agitator 2.

[0024] The top of the cylinder 1 is equipped with a screw jack 7, and a screw 63 is connected to the middle of the screw jack 7. The screw 63 is inserted into the upper side of the cylinder 1 and connected to the upper side of the cleaning ring 6. The screw jack 7 and the screw 63 are mainly used to push and pull the cleaning ring 6 to lift. Of course, this structure is existing technology and can also be replaced by existing electric push rods, hydraulic rods or cylinders with lifting functions.

[0025] A feeding hopper 4 is installed on one side of the cylinder 1, and the cleaning ring 6 is located above the feeding hopper 4. This makes it less likely for the feeding hopper 4 to fall into the cleaning ring 6 when feeding. In addition, an electromagnetic discharge valve 5 is installed at the bottom of the cylinder 1. The electromagnetic discharge valve 5 is located directly below the stirring paddle 2 and is used to open and close the bottom of the cylinder 1 to control the discharge.

[0026] In specific cleaning operations, water from the water tank 8 is first pumped into the chambers 620 of each conduit 62 via the water pump 81 and various water pipes 82. Water is then fed into the water holes 601 through the chambers 620, allowing the nozzles 602 to spray high-pressure water towards the agitator 2 for multi-directional rinsing. During rinsing, the agitator 2 can rotate slowly, ensuring sufficient contact between the water flow and the agitator 2. At this time, the screw jack 7 drives the screw 63 to extend and retract vertically, causing the bottom end of the screw 63 to synchronously push and pull the cleaning ring 6 under the guidance of the conduit 62. The cleaning ring 6 is raised or lowered so that the inner cleaning brush 61 of the cleaning ring 6 can brush the surface of the agitator 2 in all directions. The brushing of the cleaning ring 6 can be combined with the high-pressure water of the nozzle 602 to work together to clean the agitator 2, which greatly improves the cleaning effect. In addition, while the cleaning ring 6 is raised or lowered, the rubber scraper pad 64 is used to scrape off the material adhering to the inner wall of the cylinder 1. After repeated cleaning operations, the electromagnetic discharge valve 5 can be opened to discharge the cleaned material. Alternatively, the cleaning can be carried out by opening the electromagnetic discharge valve 5 to achieve the effect of cleaning and discharging at the same time.

[0027] It should be noted that the present invention provides a self-cleaning concrete mixer, which mainly improves the above-mentioned structure. The functions, components and structures not mentioned can be implemented by using existing components and structures that can achieve the corresponding functions.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] 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 with self-cleaning function, comprising a cylinder (1), a stirring paddle (2) vertically rotatably mounted in the middle of the cylinder (1), and a stirring motor (3) mounted on the top of the cylinder (1) for driving the stirring paddle (2) to rotate, characterized in that, A cleaning ring (6) is provided on the inner side of the cylinder (1) and is staggered and sleeved on the outer periphery of the stirring paddle (2); The inner ring of the cleaning ring (6) is fixed with a number of inner cleaning brushes (61), and the inner cleaning brushes (61) contact the outer surface of the stirring paddle (2). The outer ring of the cleaning ring (6) is provided with a rubber scraper pad (64), and the rubber scraper pad (64) contacts the inner wall of the cylinder (1). When the cleaning ring (6) moves downward, the rubber scraper pad (64) scrapes and cleans the inner wall of the cylinder (1), while the inner cleaning brush (61) brushes the surface of the stirring paddle (2).

2. A concrete mixer with self-cleaning function according to claim 1, characterized in that, Multiple conduits (62) are fixed in an annular array on the upper side of the cleaning ring (6), and each conduit (62) is installed through the upper side of the cylinder (1).

3. A concrete mixer with self-cleaning function according to claim 2, characterized in that, The conduit (62) has a cavity (620) inside, and the cleaning ring (6) has multiple water holes (601) that communicate with the cavity (620). A water pipe (82) that communicates with the cavity (620) is installed at the top of the conduit (62), and a water tank (8) with a water pump (81) is connected to the outer end of the water pipe (82).

4. A concrete mixer with self-cleaning function according to claim 3, characterized in that, Each of the water holes (601) is equipped with a nozzle (602) at the bottom corresponding to the position below the cleaning ring (6), and each nozzle (602) is set towards the center of the stirring paddle (2).

5. A concrete mixer with self-cleaning function according to claim 1, characterized in that, A screw jack (7) is installed on the top of the cylinder (1). A screw (63) is connected to the middle of the screw jack (7). The screw (63) is inserted into the upper side of the cylinder (1) and connected to the upper side of the cleaning ring (6).

6. A concrete mixer with self-cleaning function according to claim 1, characterized in that, A feed hopper (4) is installed on one side of the cylinder (1), and the cleaning ring (6) is located above the feed hopper (4) on one side.

7. A concrete mixer with self-cleaning function according to claim 1, characterized in that, The bottom of the cylinder (1) is equipped with an electromagnetic discharge valve (5), which is located directly below the agitator (2).

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