Concrete mixer

Abstract

The utility model relates to the technical field of concrete mixing, and discloses a concrete mixer which comprises a mixing barrel, a cover plate is arranged at the top of the mixing barrel, a movable window is arranged in the middle of the cover plate, a movable block is connected to the inner side of the movable window in a sliding mode, and a mixing shaft is rotatably connected to the middle of the movable block. A stirring rod is fixedly connected to the outer wall of the lower end of the stirring shaft, a U-shaped plate is fixedly connected to the upper side of the movable block, a first motor is fixedly connected to the upper side of the U-shaped plate, and the driving end of the first motor is fixedly connected to the top of the stirring shaft. According to the stirring device, the first gear is matched with one of the first toothed plate and the second toothed plate, the movable block can be driven to move leftwards or rightwards, the stirring shaft and the stirring rod are driven to move leftwards and rightwards, the stirring effect is improved, and the second gear is matched with the toothed ring, so that the stirring barrel is driven to rotate, the angle is adjusted, and discharging is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a concrete mixer. Background Art

[0002] As the world's largest construction material, concrete is widely used in various industries such as road construction, building construction, marine engineering, water conservancy and hydropower. Concrete is mainly made of water, cement, sand, gravel, water reducer, etc. in a reasonable proportion, and is formed through a series of physical and chemical reactions. Concrete mixer is a machine that mixes cement, sand and gravel aggregates and water into concrete mixture.

[0003] After searching, a new type of concrete mixer with announcement number CN220864360U includes a mixing bucket with a mixing chamber inside, a feed port is provided on the top surface of the mixing bucket, a discharge port is provided on the bottom surface of the mixing bucket, multiple rotating grooves are provided on the opposite side walls of the mixing bucket, multiple pairs of rotating plates are rotatably provided on the outer wall of the mixing bucket, a sealing plate for closing the discharge port is provided between a pair of rotating plates, an inner rotating shaft rotatably connected to the rotating groove is provided on the end surface of the rotating plate facing the mixing bucket, an outer rotating shaft is provided on the end surface of the rotating plate away from the mixing bucket, a spline hole is provided on the end surface of the outer rotating shaft away from the mixing bucket, a dust cover is provided on the outer wall of the mixing bucket, and a driving motor spline-connected to the spline hole is provided on the end surface of the dust cover away from the mixing bucket. This new type of concrete mixer reduces the labor intensity of workers by providing a sealing plate that can automatically close or open the discharge port at the bottom of the mixing bucket;

[0004] Based on the above patent, the labor intensity of workers is reduced by the sealing plate that can automatically close or open the discharge port. However, the flat setting of the mixing barrel and the fixed mixing structure make the concrete inside only rotate at the same position. The concrete will have a certain regularity when rotating for a long time, which reduces the mixing efficiency and the mixing effect of the concrete on both sides is not good. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a concrete mixer which can stir different areas inside a mixing barrel, thereby improving the stirring effect and avoiding the problem of uneven stirring.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete mixer, comprising a mixing barrel, a cover plate is arranged at the top of the mixing barrel, a movable window is opened in the middle of the cover plate, a movable block is slidably connected to the inside of the movable window, a stirring shaft is rotatably connected to the middle of the movable block, stirring rods are fixedly connected to the outer wall of the lower end of the stirring shaft, a U-shaped plate is fixedly connected to the upper side of the movable block, a first motor is fixedly connected to the upper side of the U-shaped plate, the driving end of the first motor is fixedly connected to the top of the stirring shaft, first hydraulic rods are fixedly connected to the upper sides of the left and right ends of the cover plate respectively, first fixing blocks are fixedly connected to the tops of the first hydraulic rods, connecting plates are fixedly connected to the opposite ends of the first fixing blocks, a first toothed plate is fixedly connected to the lower side of the rear ends of the connecting plates together, a first gear is meshingly connected to the front side of the first toothed plate, the middle of the first gear is fixedly connected to the outer wall of the upper end of the stirring shaft, a second toothed plate is fixedly connected to the upper side of the front ends of the connecting plates together, and a support assembly is arranged at the rear side of the mixing barrel.

[0008] Further, the support assembly includes a bottom plate below the mixing barrel, a first back plate is fixedly connected to the upper side and rear end of the bottom plate, a second back plate is rotatably connected to the top of the first back plate, the front side of the second back plate is fixedly connected to the rear side of the mixing barrel, and a lifting assembly is arranged at the upper end of the second back plate.

[0009] Further, the lifting assembly includes a lifting block movably connected to the inside of the upper end of the second back plate, and the front end of the lifting block is fixedly connected to the rear side of the cover plate.

[0010] Further, the lifting assembly further includes a second fixing block fixedly connected to the rear side of the top end of the second back plate, a second hydraulic rod is fixedly connected to the middle of the second fixing block, and the output end of the second hydraulic rod is fixedly connected to the upper side of the lifting block.

[0011] Further, a toothed ring is fixedly connected to the rear side of the lower end of the second back plate.

[0012] Further, a machine base is fixedly connected to the rear side of the first back plate, and a second motor is fixedly connected to the rear side of the machine base.

[0013] Further, a second gear is fixedly connected to the output end of the second motor, and the outer side of the second gear is meshingly connected to the outer side of the toothed ring.

[0014] Further, a discharge pipe is fixedly connected to the left end of the side bottom of the mixing barrel.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the present utility model, the first motor set for starting can drive the stirring shaft and the stirring rod to rotate, so as to stir the concrete. By the cooperation of the first gear with one of the first toothed plate and the second toothed plate, the movable block can be driven to move left or right, thereby driving the stirring shaft and the stirring rod to move left and right, improving the stirring effect.

[0017] 2. In the present utility model, the second motor set drives the second gear to rotate. By the cooperation of the second gear with the toothed ring, the stirring barrel is driven to rotate, adjusting the angle for convenient discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall schematic diagram of a concrete mixer proposed by the present utility model;

[0019] Figure 2 is a schematic diagram of the cover plate of a concrete mixer proposed by the present utility model;

[0020] Figure 3 is a schematic diagram of the first gear of a concrete mixer proposed by the present utility model;

[0021] Figure 4 is a schematic diagram of the lifting block of a concrete mixer proposed by the present utility model;

[0022] Figure 5 is a schematic diagram of the toothed ring of a concrete mixer proposed by the present utility model.

[0023] Legend Explanation:

[0024] 1. Stirring barrel; 2. Cover plate; 3. Movable window; 4. Movable block; 5. Stirring shaft; 6. Stirring rod; 7. U-shaped plate; 8. First motor; 9. First hydraulic rod; 10. First fixing block; 11. Connecting plate; 12. First toothed plate; 13. First gear; 14. Second toothed plate; 16. Bottom plate; 17. First back plate; 18. Second back plate; 19. Lifting block; 20. Second fixing block; 21. Second hydraulic rod; 22. Toothed ring; 23. Machine base; 24. Second motor; 25. Second gear; 26. Discharge pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a concrete mixer, including a mixing barrel 1, a cover plate 2 is arranged at the top of the mixing barrel 1, an activity window 3 is opened in the middle of the cover plate 2, an activity block 4 is slidably connected to the inner side of the activity window 3, a mixing shaft 5 is rotatably connected to the middle of the activity block 4, stirring rods 6 are fixedly connected to the outer wall of the lower end of the mixing shaft 5, a U-shaped plate 7 is fixedly connected to the upper side of the activity block 4, a first motor 8 is fixedly connected to the upper side of the U-shaped plate 7, the driving end of the first motor 8 is fixedly connected to the top of the mixing shaft 5, first hydraulic rods 9 are fixedly connected to the upper sides of the left and right ends of the cover plate 2, first fixing blocks 10 are fixedly connected to the tops of the first hydraulic rods 9, connecting plates 11 are fixedly connected to the opposite ends of the first fixing blocks 10, a first toothed plate 12 is fixedly connected to the lower side of the rear ends of the connecting plates 11 together, a first gear 13 is meshed with the front side of the first toothed plate 12, the middle of the first gear 13 is fixedly connected to the outer wall of the upper end of the mixing shaft 5, a second toothed plate 14 is fixedly connected to the upper side of the front ends of the connecting plates 11 together, and a discharge pipe 26 is fixedly connected to the left end of the side bottom of the mixing barrel 1;

[0027] Put the concrete into the mixing barrel 1, start the first motor 8 to drive the mixing shaft 5 and the stirring rods 6 to rotate, and stir the concrete. When the mixing shaft 5 rotates, it drives the first gear 13 to rotate. The cooperation between the first gear 13 and the first toothed plate 12 can push the activity block 4 to move, move to the left. When it moves to the top of the activity window 3, the first hydraulic rod 9 quickly descends through the first fixing block 10 and the connecting plate 11, so that the second toothed plate 14 meshes with the first gear 13, thereby driving the activity block 4 to move to the right. Thus, when the mixing shaft 5 and the stirring rods 6 rotate to stir the concrete, they move left and right, thereby improving the stirring effect.

[0028] Refer to Figure 4 , a bottom plate 16 is arranged below the mixing barrel 1, a first back plate 17 is fixedly connected to the upper side and the rear end of the bottom plate 16, a second back plate 18 is rotatably connected to the top of the first back plate 17, the front side of the second back plate 18 is fixedly connected to the rear side of the mixing barrel 1, a lifting block 19 is movably connected to the upper end inside the second back plate 18, the front end of the lifting block 19 is fixedly connected to the rear side of the cover plate 2, and the lifting assembly further includes a second fixing block 20 fixedly connected to the rear side of the top end of the second back plate 18, a second hydraulic rod 21 is fixedly connected to the middle of the second fixing block 20, and the output end of the second hydraulic rod 21 is fixedly connected to the upper side of the lifting block 19;

[0029] The second hydraulic rod 21 can drive the lifting block 19 to rise, thereby driving the cover plate 2 to rise, and the mixing shaft 5 and the stirring rods 6 can be exposed from the mixing barrel 1, which is convenient for maintenance and cleaning.

[0030] Refer to Figure 5, a toothed ring 22 is fixedly connected to the rear side of the lower end of the second back plate 18, a machine base 23 is fixedly connected to the rear side of the first back plate 17, a second motor 24 is fixedly connected to the rear side of the machine base 23, an output end of the second motor 24 is fixedly connected to a second gear 25, and the outer side of the second gear 25 is meshed and connected to the outer side of the toothed ring 22;

[0031] By setting the second motor 24 to drive the second gear 25 to rotate, and through the cooperation of the second gear 25 and the toothed ring 22, the mixing barrel 1 is driven to rotate and the angle is adjusted to facilitate discharging.

[0032] Working principle: Put the concrete into the mixing barrel 1, start the first motor 8 to drive the mixing shaft 5 and the mixing rods 6 to rotate to mix the concrete. When the mixing shaft 5 rotates, it drives the first gear 13 to rotate. The cooperation between the first gear 13 and the first toothed plate 12 can push the movable block 4 to move leftward. When it moves to the top of the movable window 3, the first hydraulic rod 9 quickly descends through the first fixed block 10 and the connecting plate 11, so that the second toothed plate 14 meshes with the first gear 13, thereby driving the movable block 4 to move rightward. Thus, when the mixing shaft 5 and the mixing rods 6 rotate to mix the concrete, they move left and right. Starting the second motor 24 can drive the second gear 25 to rotate, thereby driving the second back plate 18 and the mixing barrel 1 to rotate and adjust the angle to facilitate the concrete to be discharged from the discharge pipe 26. The second hydraulic rod 21 can drive the lifting block 19 to rise, thereby driving the cover plate 2 to rise, and the mixing shaft 5 and the mixing rods 6 can be exposed from the mixing barrel 1, which is convenient for maintenance and cleaning.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete mixer, comprising a mixing barrel (1), characterized in that: A cover plate (2) is provided at the top of the mixing barrel (1). An activity window (3) is opened in the middle of the cover plate (2). An activity block (4) is slidably connected to the inner side of the activity window (3). A mixing shaft (5) is rotatably connected to the middle of the activity block (4). Stirring rods (6) are fixedly connected to the outer wall of the lower end of the mixing shaft (5). A U-shaped plate (7) is fixedly connected to the upper side of the activity block (4). A first motor (8) is fixedly connected to the upper side of the U-shaped plate (7). The driving end of the first motor (8) is fixedly connected to the top of the mixing shaft (5). First hydraulic rods (9) are fixedly connected to the upper sides of the left and right ends of the cover plate (2). First fixing blocks (10) are fixedly connected to the tops of the first hydraulic rods (9). Connecting plates (11) are fixedly connected to the opposite ends of the first fixing blocks (10). A first toothed plate (12) is fixedly connected to the lower side of the rear end of the connecting plates (11) together. A first gear (13) is meshed with the front side of the first toothed plate (12). The middle of the first gear (13) is fixedly connected to the outer wall of the upper end of the mixing shaft (5). A second toothed plate (14) is fixedly connected to the upper side of the front end of the connecting plates (11) together. A support assembly is provided at the rear side of the mixing barrel (1).

2. The concrete mixer according to claim 1, characterized in that: The support assembly includes a bottom plate (16) below the mixing barrel (1). A first back plate (17) is fixedly connected to the upper side of the rear end of the bottom plate (16). A second back plate (18) is rotatably connected to the top of the first back plate (17). The front side of the second back plate (18) is fixedly connected to the rear side of the mixing barrel (1). A lifting assembly is provided at the upper end of the second back plate (18).

3. A concrete mixer according to claim 2, characterized in that: The lifting assembly includes a lifting block (19) movably connected to the inside of the upper end of the second back plate (18). The front end of the lifting block (19) is fixedly connected to the rear side of the cover plate (2).

4. A concrete mixer according to claim 2, characterized in that: The lifting assembly further includes a second fixing block (20) fixedly connected to the rear side of the top end of the second back plate (18). A second hydraulic rod (21) is fixedly connected to the middle of the second fixing block (20). The output end of the second hydraulic rod (21) is fixedly connected to the upper side of the lifting block (19).

5. A concrete mixer according to claim 2, characterized in that: A toothed ring (22) is fixedly connected to the rear side of the lower end of the second back plate (18).

6. The concrete mixer according to claim 2, wherein: A machine base (23) is fixedly connected to the rear side of the first back plate (17). A second motor (24) is fixedly connected to the rear side of the machine base (23).

7. A concrete mixer according to claim 6, characterized in that: The output end of the second motor (24) is fixedly connected to a second gear (25). The outer side of the second gear (25) is meshed with the outer side of the toothed ring (22).

8. A concrete mixer according to claim 1, characterized in that: A discharge pipe (26) is fixedly connected to the left end of the side bottom of the mixing barrel (1).

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