Concrete mixer

Abstract

The utility model relates to the technical field of concrete stirring equipment, and discloses a concrete stirrer which comprises a stirring kettle, an air cylinder is arranged at the top end of the stirring kettle, the output end of the air cylinder is fixedly connected with a lifting plate, and a motor is arranged on the upper surface of the lifting plate. According to the concrete mixer, concrete can be turned over up and down through the arrangement of the spiral blades, the concrete can be uniformly and fully mixed while being turned over through the arrangement of the mixing blades linked with the spiral blades, the mixing effect of the concrete is optimized, and the mixing efficiency of the concrete is improved; by arranging a heating plate, a cooling pipe, a temperature sensor, a controller and an electromagnetic valve, the stirring temperature in the stirring kettle can be automatically regulated and controlled, concrete is always stirred at a proper stirring temperature, and the situation that the stirring quality of the concrete is affected due to the fact that the temperature is too high or too low is avoided; the problems that an existing concrete mixer is simple in mixing structure and poor in mixing effect are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of concrete mixing equipment, in particular to a concrete mixer. BACKGROUND

[0002] Concrete is usually mixed by cement, sand, stone and water in a certain proportion, and is formed after stirring. Concrete has high strength and durability after hardening, and is widely used in civil engineering.

[0003] The existing patent (publication number: CN 208215664U) discloses a concrete mixer, which solves the problem of blockage of the discharge port of the mixer. The technical scheme is as follows: a concrete mixer comprises a mixer body, a discharge port provided on the mixer body for discharging, a stirring shaft provided in the mixer body for stirring the concrete in the mixer, and a rotating motor for driving the stirring shaft to rotate. The stirring shaft penetrates the discharge port, and the stirring shaft is provided with a dredging fin for dredging the concrete at the discharge port. The discharge port can be dredged, and the blockage of the concrete at the discharge port is avoided.

[0004] The stirring structure of the above-mentioned concrete mixer is relatively simple, and the concrete cannot be fully and uniformly stirred, which affects the stirring quality of the concrete. Practical new type content

[0005] In view of the defects of the prior art, the application provides a concrete mixer, which has the advantages of being capable of uniformly and fully stirring the concrete, optimizing the stirring effect of the concrete, improving the stirring efficiency of the concrete and the like, and solves the problem that the stirring structure of the existing concrete mixer is relatively simple, the concrete cannot be fully and uniformly stirred, and the stirring quality of the concrete is affected.

[0006] To achieve the above object, the application provides the following technical scheme: a concrete mixer, comprising a stirring kettle, a gas cylinder is arranged at the top end of the stirring kettle, an output end of the gas cylinder is fixedly connected with a lifting plate, an upper surface of the lifting plate is provided with a motor, a bottom of the motor is rotatably connected with a stirring shaft, the stirring shaft penetrates through the lifting plate and the stirring kettle, an outer circumferential surface of the stirring shaft is fixedly sleeved with a spiral blade, two rotating shafts are rotatably connected in the stirring kettle, an outer circumferential surface of each rotating shaft is fixedly connected with equidistantly arranged stirring blades, the outer circumferential surface of the stirring shaft is fixedly connected with a gear plate, a top end of each rotating shaft is fixedly connected with a gear column, the gear column is engaged with the gear plate, an outer circumferential surface of the stirring kettle is fixedly sleeved with a heating plate, the stirring kettle is fixedly connected with a cooling pipe, a bottom of the cooling pipe is provided with a water inlet, a top end of the cooling pipe is provided with a water outlet, a temperature sensor is arranged at the top end of the stirring kettle, a controller is arranged at the top end of the stirring kettle, and an outer circumferential surface of the water inlet is provided with an electromagnetic valve.

[0007] Through the above scheme, since the stirring structure of the existing concrete mixer is relatively simple, the concrete cannot be fully and uniformly stirred, which affects the stirring quality of the concrete. By arranging the spiral blade, the concrete can be turned up and down. By arranging the stirring blade linked with the spiral blade, the concrete can be uniformly and fully stirred while being turned, the stirring effect of the concrete is optimized, and the stirring efficiency of the concrete is improved.

[0008] Further, an outer circumferential surface of each rotating shaft is fixedly sleeved with a limiting ring, and an outer circumferential surface of the limiting ring is rotatably connected with the inside of the stirring kettle.

[0009] Through the above scheme, the rotating shaft is limited to avoid longitudinal lifting of the rotating shaft, and the stability of the movement of the rotating shaft is improved.

[0010] Further, the cooling pipe is arranged in a spiral shape, and the cooling pipe is made of high-thermal-conductivity material.

[0011] Through the above scheme, the cooling pipe arranged in a spiral shape has a larger contact area with the stirring kettle, can uniformly and quickly cool the stirring kettle, and the cooling pipe made of high-thermal-conductivity material has a higher heat conduction effect, further improving the cooling efficiency of the stirring kettle.

[0012] Further, an outer circumferential surface of the stirring kettle is provided with a display, and the display is electrically connected with the temperature sensor.

[0013] Through the above scheme, the display can receive the temperature information fed back by the temperature sensor and display it intuitively, so that the user can observe and obtain the stirring temperature of the concrete in the stirring kettle in real time.

[0014] Further, the temperature sensor is electrically connected with the controller, the heating plate is electrically connected with the controller, and the electromagnetic valve is electrically connected with the controller.

[0015] Through the above scheme, the stirring temperature can be preset by the controller, the temperature sensor can detect the stirring temperature of the concrete in the stirring kettle in real time, and the temperature information is fed back to the controller, and the controller controls the heating plate and the electromagnetic valve according to the temperature information fed back by the temperature sensor. When the temperature is lower than the preset temperature, the heating plate starts to heat the stirring kettle, and when the temperature is higher than the preset temperature, the electromagnetic valve is opened to make cold water enter the cooling pipe through the water inlet to cool the stirring kettle. The stirring temperature is automatically controlled in the preset suitable stirring temperature range, and the concrete stirring quality is guaranteed.

[0016] Further, the upper surface of the stirring kettle is fixedly connected with four columns, and the inside of the lifting plate is slidably connected with the outer circumferential surface of the column.

[0017] Through the above scheme, the lifting plate is limited to always vertically ascend and descend, and the stability of the movement of the lifting plate is improved.

[0018] Further, the top end of the stirring kettle is provided with a feeding port, and the bottom of the stirring kettle is provided with a discharging port.

[0019] Through the above scheme, the raw materials can be injected into the stirring kettle through the feeding port for stirring operation, and the concrete can be discharged through the discharging port after the stirring operation is completed.

[0020] Further, the inner bottom wall of the stirring kettle is in a funnel-shaped structure, and the bottom of the stirring shaft is fixedly connected with a dredging fin.

[0021] Through the above scheme, the funnel-shaped inner bottom wall of the stirring kettle facilitates the flow and discharge of the concrete, and the dredging fin can be driven by the cylinder to move downward to the inside of the discharging port, and then be driven by the motor to rotate to dredge the discharging port, thereby avoiding the blockage of the discharging port and affecting the discharge.

[0022] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0023] The concrete mixer, through the spiral blade, promotes the up and down of the concrete, through the setting of the stirring blade linked with the spiral blade, promotes the uniform and sufficient stirring of the concrete while the concrete is turned over, optimizes the stirring effect of the concrete, improves the stirring efficiency of the concrete, through the setting of the heating plate, the cooling pipe, the temperature sensor, the controller and the electromagnetic valve, the stirring temperature in the stirring kettle can be automatically controlled, the concrete is always stirred at a suitable stirring temperature, the problem of the simple stirring structure of the existing concrete mixer and the poor stirring effect is solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole three-dimensional structure diagram of the application;

[0025] Figure 2 It is the partial front structure diagram of the application;

[0026] Figure 3 It is the partial front structure diagram of the application;

[0027] Figure 4 It is the cooling pipe structure diagram of the application.

[0028] In the drawing:

[0029] 1, stirring kettle; 2, air cylinder; 3, lifting plate; 4, motor; 5, stirring shaft; 6, spiral blade; 7, rotating shaft; 8, stirring blade; 9, gear plate; 10, gear column; 11, limiting ring; 12, heating plate; 13, cooling pipe; 14, water inlet; 15, water outlet; 16, temperature sensor; 17, controller; 18, display; 19, electromagnetic valve; 20, stand column; 21, feeding port; 22, discharging port; 23, dredging fin. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0031] Please refer to Figure 1 , Figure 3 and Figure 4The concrete mixer in the embodiment comprises a stirring kettle 1, the top end of the stirring kettle 1 is provided with a gas cylinder 2, the output end of the gas cylinder 2 is fixedly connected with a lifting plate 3, the upper surface of the lifting plate 3 is provided with a motor 4, the bottom of the motor 4 is rotatably connected with a stirring shaft 5, the outer circumferential surface of the stirring shaft 5 penetrates through the lifting plate 3 and the stirring kettle 1, the outer circumferential surface of the stirring shaft 5 is fixedly sleeved with a spiral blade 6, the inside of the stirring kettle 1 is rotatably connected with two rotating shafts 7, the outer circumferential surface of each rotating shaft 7 is fixedly connected with equidistantly arranged stirring blades 8, the outer circumferential surface of the stirring shaft 5 is fixedly connected with a gear plate 9, the top end of each rotating shaft 7 is fixedly connected with a gear column 10, the gear column 10 is engaged with the gear plate 9, the outer circumferential surface of the stirring kettle 1 is fixedly sleeved with a heating plate 12, the inside of the stirring kettle 1 is fixedly connected with a cooling pipe 13, the bottom of the cooling pipe 13 is provided with a water inlet 14, the top end of the cooling pipe 13 is provided with a water outlet 15, the top end of the stirring kettle 1 is provided with a temperature sensor 16, the top end of the stirring kettle 1 is provided with a controller 17, and the outer circumferential surface of the water inlet 14 is provided with a solenoid valve 19.

[0032] Please refer to Figure 3 The outer circumferential surface of each rotating shaft 7 is fixedly sleeved with a limiting ring 11, the outer circumferential surface of the limiting ring 11 is rotatably connected with the inside of the stirring kettle 1, the rotating shaft 7 is limited, the longitudinal lifting of the rotating shaft 7 is avoided, and the stability of the movement of the rotating shaft 7 is improved.

[0033] Please refer to Figure 4 The cooling pipe 13 is spirally arranged, the cooling pipe 13 is spirally arranged with high thermal conductivity material, there is a larger contact area between the cooling pipe 13 and the stirring kettle 1, the stirring kettle 1 can be uniformly and quickly cooled, the cooling pipe 13 with high thermal conductivity has high thermal conductivity effect, and the cooling efficiency of the stirring kettle 1 is further improved.

[0034] Please refer to Figure 1 and Figure 2 The outer circumferential surface of the stirring kettle 1 is provided with a display 18, the display 18 is electrically connected with the temperature sensor 16, the display 18 can receive the temperature information fed back by the temperature sensor 16 and directly display, so that the user can observe and obtain the stirring temperature of the concrete in the stirring kettle 1 in real time.

[0035] Please refer to Figure 1 and Figure 2The temperature sensor 16 is electrically connected with the controller 17, the heating plate 12 is electrically connected with the controller 17, and the electromagnetic valve 19 is electrically connected with the controller 17. The stirring temperature can be preset through the controller 17. The temperature sensor 16 can detect the stirring temperature of the concrete in the stirring kettle 1 in real time and feed back the temperature information to the controller 17. The controller 17 controls the heating plate 12 and the electromagnetic valve 19 according to the temperature information fed back by the temperature sensor 16. When the temperature is lower than the preset temperature, the heating plate 12 is started to heat the stirring kettle 1. When the temperature is higher than the preset temperature, the electromagnetic valve 19 is opened to make cold water enter the cooling pipe 13 through the water inlet 14 to cool the stirring kettle 1. The stirring temperature is automatically controlled in the preset suitable stirring temperature range, and the concrete stirring quality is ensured.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 3 The upper surface of the stirring kettle 1 is fixedly connected with four columns 20. The inside of the lifting plate 3 is slidably connected with the outer circumferential surface of the column 20, so that the lifting plate 3 is always longitudinally lifted, and the stability of the movement of the lifting plate 3 is improved.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 The top end of the stirring kettle 1 is provided with a feeding port 21, and the bottom of the stirring kettle 1 is provided with a discharging port 22. The raw materials can be injected into the stirring kettle 1 through the feeding port 21 for stirring operation. After the stirring operation is completed, the concrete can be discharged through the discharging port 22.

[0038] Please refer to Figure 3 The inner bottom wall of the stirring kettle 1 is in a funnel-shaped structure, and the bottom of the stirring shaft 5 is fixedly connected with a dredging fin 23. The funnel-shaped inner bottom wall of the stirring kettle 1 facilitates the flow and discharge of the concrete. The dredging fin 23 can be driven by the air cylinder 2 to move downwardly to the inside of the discharging port 22, and then be driven by the motor 4 to rotate, so as to dredge the discharging port 22 and avoid the blockage of the discharging port 22 to affect the discharge.

[0039] The concrete mixer in the embodiment is provided with the spiral blade 6, so that the concrete can be turned up and down. The stirring blade 8 linked with the spiral blade 6 is provided, so that the concrete can be uniformly and fully stirred while being turned. The stirring effect of the concrete is optimized, and the stirring efficiency of the concrete is improved. The heating plate 12, the cooling pipe 13, the temperature sensor 16, the controller 17 and the electromagnetic valve 19 are provided, so that the stirring temperature in the stirring kettle 1 can be automatically controlled, and the concrete can be always stirred at a suitable stirring temperature. The problem that the stirring structure of the existing concrete mixer is simple and the stirring effect is poor is solved.

[0040] It should be noted that the number of rotating shafts 7, stirring blades 8 and gear columns 10 can be increased according to the stirring requirements, as long as the rotating shafts 7, stirring blades 8 and gear columns 10 are arranged annularly around the stirring shaft 5 at the periphery of the helical blade 6, the added gear columns 10 are engaged with the gear plate 9, and the positions of the peripheral structures such as the feeding port 21 are adjusted appropriately to avoid the conflict between the gear columns 10 and the peripheral structures. The more the number of rotating shafts 7 and stirring blades 8 around the helical blade 6, the better the stirring effect of the concrete in the stirring kettle 1. The number of rotating shafts 7, stirring blades 8 and gear columns 10 is at least two groups.

[0041] The working principle of the above embodiment is as follows:

[0042] During the concrete stirring operation, the motor 4 is started to drive the helical blade 6 to rotate through the stirring shaft 5. The helical blade 6 can stir and turn the concrete during the rotation. When the stirring shaft 5 rotates, the gear plate 9 is driven to rotate, the gear plate 9 drives the rotating shafts 7 on both sides to rotate through the gear columns 10, and the rotating shafts 7 drive the stirring blades 8 to rotate to fully stir the concrete. Under the joint action of the helical blade 6 and the stirring blade 8, the stirring effect of the concrete is improved. The water inlet 14 and the water outlet 15 of the cooling pipe 13 are connected with the external water inlet pipe and the water outlet pipe respectively. The stirring temperature can be pre-set through the controller 17. The temperature sensor 16 can detect the stirring temperature of the concrete in the stirring kettle 1 in real time and feed back the temperature information to the controller 17. The controller 17 controls the heating plate 12 and the electromagnetic valve 19 according to the temperature information fed back by the temperature sensor 16. When the temperature is lower than the pre-set temperature, the heating plate 12 is started to heat the stirring kettle 1. When the temperature is higher than the pre-set temperature, the electromagnetic valve 19 is opened to make cold water enter the cooling pipe 13 through the water inlet 14 to cool the stirring kettle 1. The stirring temperature is automatically controlled in the pre-set suitable stirring temperature range to ensure the concrete stirring quality.

[0043] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement “including a…” does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0044] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A concrete mixer comprising a mixing tank (1), characterized in that: The top of the stirring kettle (1) is provided with a cylinder (2), the output end of the cylinder (2) is fixedly connected with a lifting plate (3), the upper surface of the lifting plate (3) is provided with a motor (4), the bottom of the motor (4) is rotatably connected with a stirring shaft (5), the outer circumferential surface of the stirring shaft (5) penetrates the lifting plate (3) and the stirring kettle (1), the outer circumferential surface of the stirring shaft (5) is fixedly sleeved with a spiral blade (6), the inside of the stirring kettle (1) is rotatably connected with two rotating shafts (7), the outer circumferential surface of each rotating shaft (7) is fixedly connected with equidistantly arranged stirring blades (8), the outer circumferential surface of the stirring shaft (5) is fixedly connected with a gear plate (9), the top of each rotating shaft (7) is fixedly connected with a gear column (10), the gear column (10) is engaged with the gear plate (9), the outer circumferential surface of the stirring kettle (1) is fixedly sleeved with a heating plate (12), the inside of the stirring kettle (1) is fixedly connected with a cooling pipe (13), the bottom of the cooling pipe (13) is provided with a water inlet (14), the top of the cooling pipe (13) is provided with a water outlet (15), the top of the stirring kettle (1) is provided with a temperature sensor (16), the top of the stirring kettle (1) is provided with a controller (17), the outer circumferential surface of the water inlet (14) is provided with a solenoid valve (19).

2. A concrete mixer as claimed in claim 1, wherein: The outer circumferential surface of each rotating shaft (7) is fixedly sleeved with a limiting ring (11), and the outer circumferential surface of the limiting ring (11) is rotatably connected with the inside of the stirring kettle (1).

3. A concrete mixer as claimed in claim 1, wherein: The cooling pipe (13) is spirally arranged, and the cooling pipe (13) is made of high-thermal-conductivity material.

4. A concrete mixer as claimed in claim 1, wherein: The outer circumferential surface of the stirring kettle (1) is provided with a display (18), and the display (18) is electrically connected with the temperature sensor (16).

5. A concrete mixer as claimed in claim 1, wherein: The temperature sensor (16) is electrically connected with the controller (17), the heating plate (12) is electrically connected with the controller (17), and the solenoid valve (19) is electrically connected with the controller (17).

6. A concrete mixer as claimed in claim 1, wherein: The upper surface of the stirring kettle (1) is fixedly connected with four stand columns (20), and the inside of the lifting plate (3) is slidably connected with the outer circumferential surface of the stand column (20).

7. A concrete mixer as claimed in claim 1, wherein: The top of the stirring kettle (1) is provided with a feeding port (21), and the bottom of the stirring kettle (1) is provided with a discharging port (22).

8. A concrete mixer as claimed in claim 1, wherein: The inner bottom wall of the stirring kettle (1) is in a funnel-shaped structure, and the bottom of the stirring shaft (5) is fixedly connected with a dredging fin (23).

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