A concrete mixer

Abstract

The utility model discloses a concrete mixer relates to mixing equipment technical field, and its technical scheme main points are: including frame, be provided with mixing box on the frame, be provided with unloading device at mixing box bottom, and unloading device includes unloading hopper, and the bottom of unloading hopper is provided with unloading port, is provided with movable door on unloading port, is provided with the drive mechanism for driving movable door to open or close on unloading hopper. The concrete mixer of the utility model through setting unloading device, through drive mechanism drive movable door to open, can make unloading port open, then concrete will automatically pass unloading port under the action of gravity and unload, then because concrete directly accumulates at unloading port, can directly discharge when unloading, prevent jam, thereby guarantee the smooth unloading of concrete, dispense with the tedious operation of manual auxiliary unloading, make the operation become more convenient, save time and effort.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, 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, and a mixing paddle. The mixing paddle is connected to the motor and is located inside the mixing tank. A discharge hopper is located at the bottom of the mixing tank, and a discharge pipe is installed on the discharge hopper. A valve is installed on the discharge pipe. When using the equipment, materials can be added into the mixing tank, and then the motor is started to drive the mixing paddle to continuously mix the materials to make concrete. After the concrete is mixed, it will enter the discharge hopper, and the valve can be opened to allow the concrete to be discharged through the discharge pipe. However, due to the high viscosity of concrete, when concrete accumulates inside the discharge hopper, it will cause blockage at the connection between the discharge hopper and the discharge pipe, resulting in poor material discharge. It is necessary to manually use a shovel to continuously knock on the side wall of the discharge hopper to break up the concrete at the blockage, which is a relatively troublesome, time-consuming, and labor-intensive operation. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete mixer that solves the above-mentioned problems, making material feeding convenient and saving time and effort.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a concrete mixer, including a frame, a mixing tank is provided on the frame, a discharge device is provided at the bottom of the mixing tank, the discharge device includes a discharge hopper, a discharge port is provided at the bottom of the discharge hopper, a movable door is provided on the discharge port, and a drive mechanism for driving the movable door to open or close is provided on the discharge hopper.

[0006] As a further feature of this utility model, the movable door includes a first door panel and a second door panel. A first connecting plate is provided on both sides of the first door panel, and a second connecting plate is provided on both sides of the second door panel. One end of each of the first and second connecting plates is rotatably connected to the side wall of the unloading hopper. A linkage assembly is provided between the first and second connecting plates. The driving mechanism includes a cylinder hinged to the first connecting plate, and the piston rod of the cylinder is hinged to the second connecting plate.

[0007] As a further feature of this utility model, the linkage component includes a first gear and a second gear that mesh with each other. The first gear is rotatably connected to the end of the first connecting plate away from the first door panel, and the second gear is rotatably connected to the end of the second connecting plate away from the second door panel.

[0008] As a further feature of this invention, a sealing gasket is provided on the opposite side of both the first door panel and the second door panel.

[0009] As a further feature of this invention, the convex surface of the discharge port is arc-shaped, and the concave surfaces of the first door panel and the second door panel are arc-shaped.

[0010] As a further feature of this invention, a first rocker arm is rotatably connected to the first connecting plate, and the end of the cylinder away from the piston rod is rotatably connected to the first rocker arm. A second rocker arm is rotatably connected to the second connecting plate, and the piston rod is rotatably connected to the second rocker arm.

[0011] As a further feature of this invention, a vibration motor is provided on both sides of the unloading hopper.

[0012] As a further feature of this invention, both the mixing tank and the unloading hopper are made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by setting up a discharge device, allows concrete entering the discharge hopper to directly accumulate at the discharge port during feeding. The drive mechanism then opens the movable door, allowing the discharge port to open automatically under gravity. Because the concrete accumulates directly at the discharge port, it can be discharged directly, preventing blockages and ensuring smooth concrete discharge. This eliminates the tedious manual feeding process, making the operation more convenient, time-saving, and labor-saving. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0018] Reference numerals in the attached drawings: 1. Frame; 2. Mixing tank; 3. Discharge hopper; 4. Discharge port; 5. First door panel; 6. Second door panel; 7. First connecting plate; 8. Second connecting plate; 9. Cylinder; 10. Piston rod; 11. First gear; 12. Second gear; 13. Sealing gasket; 14. First rocker arm; 15. Second rocker arm; 16. Vibration motor. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 , Figure 3 As shown, a concrete mixer includes a frame 1, a mixing tank 2 mounted on the frame 1, and a discharge device at the bottom of the mixing tank 2. The discharge device includes a discharge hopper 3. Both the mixing tank 2 and the discharge hopper 3 are made of stainless steel, which has high strength and hardness and is not easily corroded, thus giving the equipment good durability. A discharge port 4 is opened at the bottom of the discharge hopper 3, and a movable door is provided on the discharge port 4. A drive mechanism is provided on the discharge hopper 3 to drive the movable door to open or close. When discharging, the concrete entering the discharge hopper 3 will directly accumulate on the discharge port 4, and the drive mechanism will drive the movable door to open, i.e. The discharge port 4 can be opened, and the concrete will automatically flow through the discharge port 4 under the action of gravity. After the discharge is completed, the movable door can be closed by the drive mechanism, and the discharge port 4 can be closed again. Since the concrete is directly piled up at the discharge port 4, it can be discharged directly during the discharge to prevent blockage, thus ensuring the smooth discharge of concrete and eliminating the tedious operation of manual assistance in the discharge, making the operation more convenient, time-saving and labor-saving. Vibration motors 16 are installed on both sides of the discharge hopper 3. When the concrete is discharged, the vibration motors 16 can be started to generate vibration, which can accelerate the falling of concrete inside the discharge hopper 3 and increase the discharge rate.

[0021] Please see Figure 1-3As shown, the movable door includes a first door panel 5 and a second door panel 6. First connecting plates 7 are provided on both sides of the first door panel 5, and second connecting plates 8 are provided on both sides of the second door panel 6. One end of each connecting plate 7 and connecting plate 8 is rotatably connected to the side wall of the unloading hopper 3. A linkage assembly is provided between the first connecting plate 7 and the second connecting plate 8. The driving mechanism includes a cylinder 9 hinged to the first connecting plate 7, and the piston rod 10 of the cylinder 9 hinged to the second connecting plate 8. When the movable door needs to be opened, the cylinder 9 can be activated, causing the piston rod 10 to extend, thereby pushing the second connecting plate 8 away from the hopper. Driven by the linkage component, the first connecting plate 7 moves away from the second connecting plate 8, causing the first door plate 5 and the second door plate 6 to move away from each other, thus opening the discharge port 4 for material unloading. After unloading, the cylinder 9 is activated, causing the piston rod 10 to shorten, which pushes the second connecting plate 8 closer to the first connecting plate 7. Driven by the linkage component, the first connecting plate 7 also moves towards the second connecting plate 8, causing the first door plate 5 and the second door plate 6 to move closer to each other until the movable door is completely closed, thus closing the discharge port 4. This design makes opening and closing the movable door convenient and simple, facilitating material unloading. Sealing gaskets 13, made of rubber, are provided on the opposite sides of the first door panel 5 and the second door panel 6. When the first door panel 5 and the second door panel 6 are closed, the sealing gaskets 13 will also fit together, achieving a good sealing effect and preventing concrete from leaking through the gap between the first door panel 5 and the second door panel 6. This ensures the sealing effect of the movable door on the unloading port 4. Furthermore, the convex surface of the unloading port 4 is arc-shaped, and the concave surfaces of the first door panel 5 and the second door panel 6 are arc-shaped. Therefore, when the first door panel 5 and the second door panel 6 are opened... When opening or closing, it can move smoothly and flexibly without easily getting stuck. A first rocker arm 14 is rotatably connected to the first connecting plate 7, and the end of the cylinder 9 away from the piston rod 10 is rotatably connected to the first rocker arm 14. A second rocker arm 15 is rotatably connected to the second connecting plate 8, and the piston rod 10 is rotatably connected to the second rocker arm 15. When the piston rod 10 extends, it can drive the second rocker arm 15 to swing, thereby pushing the second connecting plate 8 to move, and then driving the first connecting plate 7 to move. Thus, the first rocker arm 14 can drive the cylinder 9 to move, realizing linkage opening and closing, which is convenient to operate.

[0022] Please see Figure 3 As shown, the linkage component includes a first gear 11 and a second gear 12 that mesh with each other. The first gear 11 is rotatably connected to the end of the first connecting plate 7 away from the first door panel 5, and the second gear 12 is rotatably connected to the end of the second connecting plate 8 away from the second door panel 6. When the second connecting plate 8 moves, the second gear 12 can drive the first gear 11 to rotate, thereby driving the first connecting plate 7 to move accordingly, realizing the linkage between the first door panel 5 and the second door panel 6. The operation is relatively convenient and simple.

[0023] 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.

[0024] 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 frame (1) on which a mixing tank (2) is disposed, characterized in that: The bottom of the mixing tank (2) is provided with a discharge device, which includes a discharge hopper (3), a discharge port (4) is opened at the bottom of the discharge hopper (3), a movable door is provided on the discharge port (4), and a drive mechanism for driving the movable door to open or close is provided on the discharge hopper (3); The movable door includes a first door panel (5) and a second door panel (6). The first door panel (5) is provided with a first connecting plate (7) on both sides, and the second door panel (6) is provided with a second connecting plate (8) on both sides. One end of the first connecting plate (7) and the second connecting plate (8) are rotatably connected to the side wall of the unloading hopper (3). A linkage assembly is provided between the first connecting plate (7) and the second connecting plate (8). The driving mechanism includes a cylinder (9) hinged to the first connecting plate (7), and the piston rod (10) of the cylinder (9) is hinged to the second connecting plate (8). The linkage assembly includes a first gear (11) and a second gear (12) that mesh with each other. The first gear (11) is rotatably connected to the end of the first connecting plate (7) away from the first door panel (5), and the second gear (12) is rotatably connected to the end of the second connecting plate (8) away from the second door panel (6). Vibration motors (16) are installed on both sides of the unloading hopper (3).

2. A concrete mixer according to claim 1, characterized in that: Sealing gaskets (13) are provided on the opposite side of the first door panel (5) and the second door panel (6).

3. A concrete mixer according to claim 1, characterized in that: The outer convex surface of the discharge port (4) is arc-shaped, and the inner concave surfaces of the first door panel (5) and the second door panel (6) are arc-shaped.

4. A concrete mixer according to claim 1, characterized in that: A first rocker arm (14) is rotatably connected to the first connecting plate (7), and the end of the cylinder (9) away from the piston rod (10) is rotatably connected to the first rocker arm (14). A second rocker arm (15) is rotatably connected to the second connecting plate (8), and the piston rod (10) is rotatably connected to the second rocker arm (15).

5. A concrete mixer according to claim 1, characterized in that: Both the mixing tank (2) and the unloading hopper (3) are made of stainless steel.

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