Cement mixing device for building construction

Abstract

The application discloses a cement mixing device for building construction, which comprises a supporting frame, a storage tank installed on the upper part of the supporting frame, a stirrer installed in the storage tank, a wall scraping assembly installed on the inner wall of the storage tank in a position-adjustable manner and used for scraping the cement slurry adhered to the inner wall of the storage tank, a feeding pipe installed on the lower part of the supporting frame, a feeding port formed in one end of the feeding pipe, a discharge pipe connected to the storage tank through the feeding port, a discharging port formed in the other end of the feeding pipe, a screw auger rotatably installed in the feeding pipe and used for conveying the cement slurry from the feeding port to the discharging port, and a linkage mechanism installed on the supporting frame and used for linkage driving of the wall scraping assembly and the screw auger. The application solves the problem that the bottom of the existing cement mixing device is prone to deposition, thereby causing the blockage of the discharging port.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a cement mixing device for building construction. Background Technology

[0002] Construction cement mixing plants are specialized equipment that uniformly mix materials such as cement, sand, and water in a specific ratio to produce concrete or mortar that meets construction requirements. The core types of construction cement mixing plants include forced mixers (which use rotating blades for forced mixing, suitable for high-strength concrete) and free-fall mixers (which use rotating drums to allow materials to fall and mix, suitable for ordinary concrete). They can also be categorized by mobility: stationary (suitable for large-scale projects) and mobile (facilitating transfer between different construction sites). Construction cement mixing plants are widely used in residential, commercial, and industrial building projects, providing robust and durable concrete materials for building structures. They are also used in infrastructure construction such as roads, bridges, and tunnels to produce paving concrete and bridge structural concrete, improving the durability and service life of projects. Furthermore, they can be used to produce precast concrete components and in infrastructure repair projects.

[0003] Existing cement mixing equipment lacks anti-clogging capabilities. Due to sediment buildup at the bottom of the mixing tank, the discharge port is often blocked, preventing cement mortar from being discharged and thus affecting the operator's use, resulting in poor performance. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a cement mixing device for construction is provided to solve the problem of easy sediment buildup at the bottom of the mixing tank of existing cement mixing devices, which leads to blockage of the discharge port.

[0005] To achieve the above objectives, a cement mixing device for building construction is provided, comprising: Support frame; A storage tank is installed on the upper part of the support frame. An agitator is installed inside the storage tank. A scraper assembly for scraping off cement slurry adhering to the inner wall of the storage tank is installed on the inner wall of the storage tank in an adjustable position. A conveying pipe is installed at the lower part of the support frame. One end of the conveying pipe has a feed inlet, which is connected to the storage tank through a discharge pipe. The other end of the conveying pipe has a discharge outlet. An auger for conveying cement slurry from the feed inlet to the discharge outlet is rotatably installed inside the conveying pipe. A linkage mechanism for driving the scraper assembly and the auger is mounted on the support frame.

[0006] Furthermore, the wall scraping assembly includes: The movable inner ring is rotatably installed inside the storage tank; A cleaning plate is connected to the movable inner ring and is attached to the inner wall of the storage tank.

[0007] Furthermore, the storage tank includes a tank body and a cover plate, and the movable inner ring is rotatably embedded in the upper port of the tank body.

[0008] Furthermore, the stirrer is mounted on the cover plate.

[0009] Furthermore, the linkage mechanism includes: A drive shaft is rotatably mounted on the support frame, and one end of the drive shaft is driven to the auger via a gear assembly; An electric motor is mounted on the support frame, and the output shaft of the electric motor is coaxially connected to the transmission shaft; A drive gear is coaxially connected to the transmission shaft. A rack is mounted on the outer ring surface of the movable inner ring. The rack is arranged along the circumferential direction of the movable inner ring. A perforation is opened in the pipe wall of the tank. One side of the drive gear can movably pass through the perforation and mesh with the rack.

[0010] Furthermore, the inner wall of the upper port of the tank is formed with a receiving annular groove, and the movable inner ring is rotatably received in the receiving annular groove.

[0011] Furthermore, the gear assembly includes: The first bevel gear is coaxially connected to the drive shaft; The second bevel gear is coaxially connected to the shaft of the auger, and the second bevel gear meshes with the first bevel gear.

[0012] Furthermore, the upper end of the discharge pipe is connected to the bottom of the storage tank, the lower end of the discharge pipe is connected to the inlet, and a valve is installed in the discharge pipe.

[0013] The beneficial effects of the present invention are that the cement mixing device for construction of the present invention, by setting up a wall scraping component and an auger and being synchronously driven by a linkage mechanism, can not only actively stir and scrape off the cement slurry deposited and adhered at the bottom and inner wall of the storage tank, but also forcefully push the slurry along the conveying pipe to the discharge port, which significantly avoids the accumulation of materials at the bottom of the tank and the blockage of the discharge pipe, ensuring continuous and smooth discharge, eliminating the need for frequent shutdowns for unblocking, and improving construction efficiency.

[0014] The cleaning plate of the cement mixing device for construction of this invention performs follow-up scraping to reduce material residue. The cleaning plate in the wall scraping assembly adheres to the inner wall of the storage tank and moves in a circular motion driven by the movable inner ring, which can fully cover the inner wall surface of the tank, effectively removing residual cement slurry. This not only avoids material waste but also reduces the difficulty of subsequent cleaning and extends the service life of the equipment. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a cement mixing device for building construction according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the back of a cement mixing device for building construction according to an embodiment of the present invention.

[0017] Figure 3 This is a cross-sectional view of a cement mixing device for building construction according to an embodiment of the present invention.

[0018] Figure 4 for Figure 3 A magnified view of point A in the diagram.

[0019] Figure label: Support frame 1, protective cover 11; Storage tank 2, agitator 21, wall scraper assembly 22, movable inner ring 221, cleaning plate 222, rack 223, discharge pipe 23, valve 24; 3. Conveying pipe; 31. Screwdriver; 32. Rotating shaft; 33. Inlet a; 34. Outlet b; Linkage mechanism 4, transmission shaft 41, motor 42, drive gear 43, gear assembly 44, first bevel gear 441, second bevel gear 442. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figures 1 to 4 As shown, the present invention provides a cement mixing device for building construction, comprising: a support frame 1, a storage tank 2, a conveying pipe 3, and a linkage mechanism 4.

[0023] In this embodiment, the support frame 1 serves as a carrier and mounting platform for other components of the device. Two legs are formed at the bottom of the support frame.

[0024] The storage tank 2 is mounted on the upper part of the support frame 1. An agitator 21 is installed inside the storage tank 2. A wall scraper assembly 22 is adjustablely mounted on the inner wall of the storage tank 2. The wall scraper assembly 22 is used to scrape off cement slurry adhering to the inner wall of the storage tank 2.

[0025] The conveying pipe 3 is installed at the lower part of the support frame 1. One end of the conveying pipe 3 has a feed inlet a. The feed inlet is located directly below the bottom of the storage tank. The feed inlet a is connected to the storage tank 2 through the discharge pipe 23.

[0026] The other end of the conveying pipe 3 has a discharge port b. An auger 31 is rotatably installed inside the conveying pipe 3. The auger 31 is used to convey cement slurry from the inlet a to the outlet b.

[0027] In this embodiment, the conveying pipe is arranged horizontally. The inlet is located at the upper part of one end of the conveying pipe. The outlet is located at the lower part of the other end of the conveying pipe.

[0028] The linkage mechanism 4 is mounted on the support frame 1. The linkage mechanism 4 is used to drive the wall scraper assembly 22 and the auger 31 in a coordinated manner.

[0029] See Figure 3 As shown, the wall scraping assembly 22 includes: a movable inner ring 221 and a cleaning plate 222.

[0030] The movable inner ring 221 is rotatably mounted inside the storage tank 2. In this embodiment, the outer diameter of the movable inner ring is adapted to the inner diameter of the storage tank. The movable inner ring and the storage tank are coaxially arranged. The storage tank and the movable inner ring can rotate relative to each other in the circumferential direction.

[0031] The cleaning plate 222 is connected to the movable inner ring 221. The cleaning plate 222 is attached to the inner wall of the storage tank 2. The upper end of the cleaning plate is connected to the movable inner ring via a support rod. The cleaning plate is vertically positioned on the inner wall of the storage tank. When the movable inner ring rotates, the cleaning plate can abut against the inner wall of the storage tank and rotate along the cylindrical direction of the storage tank, thereby scraping off the residual cement slurry adhering or sticking to the inner wall of the storage tank. The slurry then falls into the conveying pipe through the discharge pipe and is subsequently discharged from the conveying pipe by the auger. The wall scraping assembly can clean the cement slurry remaining on the inner wall of the storage tank after the cement slurry is discharged, preventing blockage of the lower port (or discharge pipe) of the storage tank.

[0032] In this embodiment, the upper end of the discharge pipe 23 is connected to the bottom of the storage tank 2. The lower end of the discharge pipe 23 is connected to the inlet a. A valve 24 is installed in the discharge pipe 23. The flow rate of the cement slurry is controlled by the valve.

[0033] In some embodiments, combined with Figure 3 and Figure 4As shown, the storage tank 2 includes a tank body and a cover plate. A movable inner ring 221 is rotatably fitted into the upper port of the tank body. A stirrer 21 is mounted on the cover plate.

[0034] As a preferred embodiment, the linkage mechanism 4 includes: a transmission shaft 41, a motor 42, and a drive gear 43.

[0035] A drive shaft 41 is rotatably mounted on a support frame 1. One end of the drive shaft 41 is driven to the auger 31 via a gear assembly 44. A motor 42 is mounted on the support frame 1. The output shaft of the motor 42 is coaxially connected to the drive shaft 41. A drive gear 43 is coaxially connected to the drive shaft 41. A rack 223 is mounted on the outer ring surface of the movable inner ring 221. The rack 223 is arranged along the circumferential direction of the movable inner ring 221. A perforation is provided in the pipe wall of the tank. One side of the drive gear 43 movably passes through the perforation and meshes with the rack 223.

[0036] In this embodiment, the drive shaft is vertically mounted on a support frame. A protective cover 11 is mounted on the support frame, covering the outside of the drive shaft. Two bases are connected to the outside of the storage tank. Each base has a vertical shaft hole. The drive shaft rotatably passes through the vertical shaft holes of the two bases.

[0037] The inner wall of the upper port of the tank is formed with a receiving annular groove. The movable inner ring 221 is rotatably received in the receiving annular groove.

[0038] See Figure 3 As shown, the gear assembly 44 includes: a first bevel gear 441 and a second bevel gear 442.

[0039] The first bevel gear 441 is coaxially connected to the drive shaft 41. The second bevel gear 442 is coaxially connected to the rotating shaft 32 of the auger 31. The second bevel gear 442 meshes with the first bevel gear 441.

[0040] In some embodiments, an annular notch is formed on the inner edge of the upper port of the storage tank. The lower part of the movable inner ring is rotatably received in the annular notch. A rack is disposed on the upper part of the outer ring surface of the movable inner ring. A drive gear is vertically mounted on a support frame.

[0041] During construction, the drive gear rises and disengages from the rack. At this time, the motor only drives the auger to rotate to discharge the cement slurry from the conveying pipe. Once most of the cement in the storage tank has been discharged, the drive gear descends and engages with the rack. At this point, the motor drives the scraper assembly and the auger via the transmission shaft.

[0042] In some embodiments, the drive gear is vertically mounted on the storage tank via an electro-hydraulic actuator. A recess is formed at the shaft center of the drive gear. The upper end of the drive shaft is detachably inserted into the recess. The electro-hydraulic actuator is vertically oriented. When the electro-hydraulic actuator extends, the drive gear disengages from the drive shaft. When the electro-hydraulic actuator retracts, the recess of the drive gear is fitted onto the upper end of the drive shaft, establishing a linkage.

[0043] The conveying pipe of the cement mixing device for building construction of this invention has a rectangular hollow structure. The conveying pipe is fixedly installed on a support frame. Support legs are fixedly installed at the other end of the bottom of the conveying pipe and at the bottom of the support frame. The support legs provide stable support to the ground, ensuring the overall stability of the equipment. A storage tank is fixedly installed at the top of the conveying pipe via a discharge pipe. Opening the discharge pipe allows cement from the storage tank to enter the interior of the conveying pipe.

[0044] A support arm is fixedly installed at the rear of the storage tank. A mixing motor, which outputs power to drive the agitator, is fixedly installed at the top of the support arm. The output end of the mixing motor extends downwards into the interior of the storage tank and is fixedly installed with a mixing shaft. Bearings are rotatably mounted on the surface of the mixing shaft. The bearings ensure the stability of the mixing shaft's rotation. One side of the bearing is fixedly connected to the support arm via a fixing rod. A mixing rod is fixedly installed at the bottom of the mixing shaft. The mixing rod is used to mix and stir the cement.

[0045] A protective cover is fixedly mounted on the upper part of the support frame. A motor is fixedly mounted on the bottom inner side of the protective cover. A drive shaft is provided at the output end of the motor. The protective cover covers the drive shaft to protect it.

[0046] The conveying pipe is equipped with an auger. The storage tank is equipped with a wall scraping assembly. The drive shaft is connected to the agitator and the auger. When the motor is running, it drives the wall scraping assembly and the auger to rotate through the drive shaft. This causes the cleaning plate of the wall scraping assembly to rotate and scrape off the cement deposited on the inner wall of the storage tank, and the auger to transport the cement out.

[0047] The drive shaft is rotatably connected to the surface of the storage tank via two bases. The two bases ensure the stability of the drive shaft's rotation. A drive gear is fixedly mounted on the top of the drive shaft. The top of the drive gear is rotatably connected to the upper part of the storage tank via a positioning bracket. The positioning bracket is also designed to ensure the stability of the drive gear's rotation.

[0048] The upper inner wall of the storage tank has a receiving annular groove. One side of the drive gear extends into the receiving annular groove. A rack is arranged around the circumference of the movable inner ring. The inner wall of the movable inner ring is fixedly connected to the lifting rod.

[0049] When in use, the operator puts the cement slurry into the storage tank from above, and then starts the mixing motor to drive the mixing shaft to rotate. The mixing shaft drives the mixing rod to rotate, thereby mixing the cement into mortar.

[0050] After the cement mortar is prepared, the operator opens the discharge pipe and starts the motor to drive the first bevel gear to rotate. The rotation of the first bevel gear drives the second bevel gear to rotate, thereby driving the auger to rotate. At the same time, the drive gear at the upper end of the transmission shaft rotates and drives the rack to rotate and slide inside the receiving ring groove. When the rack rotates, it drives the cleaning plate to rotate through the movable inner ring, thereby agitating and scraping off the cement mortar deposited at the bottom of the storage tank, allowing the cement mortar to fall smoothly into the conveying pipe.

[0051] While the first bevel gear rotates, it also drives the shaft to rotate via the second bevel gear. The rotation of the shaft, in turn, drives the auger, forcibly conveying the cement mortar to the discharge port for discharge, thus preventing material blockage. The cement mixing device for construction of this invention has effective anti-clogging capabilities, preventing blockage of the discharge port caused by sediment buildup at the bottom of the storage tank, allowing the cement mortar to be discharged smoothly, thereby ensuring safe operation for operators.

[0052] According to statistics from the construction site, the cement mixing device for building construction of this invention has an effective anti-clogging capability, can smoothly discharge cement mortar without stopping the machine to clear the discharge port, and ensures the normal use of the equipment.

[0053] The cement mixing device for construction of the present invention, by setting up a wall scraping component and an auger and being driven synchronously by a linkage mechanism, can not only actively stir and scrape off the cement slurry deposited and adhered to the bottom and inner wall of the storage tank, but also force the slurry to be pushed along the conveying pipe to the discharge port. This significantly avoids the accumulation of materials at the bottom of the tank and the blockage of the discharge pipe, ensuring continuous and smooth discharge without the need for frequent shutdowns for unblocking, thus improving construction efficiency.

[0054] The cement mixing device for building construction of this invention features a compact, energy-efficient, and highly effective linkage drive structure. The cement mixing device uses a single motor to simultaneously drive the scraper assembly and auger via a transmission shaft, gear assembly, and drive gear. This reduces the number of power components, simplifies the transmission path, lowers manufacturing costs and energy consumption, and the coordinated operation of all components facilitates centralized control and maintenance.

[0055] The cleaning plate of the cement mixing device for construction of this invention performs follow-up scraping to reduce material residue. The cleaning plate in the wall scraping assembly adheres to the inner wall of the storage tank and moves in a circular motion driven by the movable inner ring, which can fully cover the inner wall surface of the tank, effectively removing residual cement slurry. This not only avoids material waste but also reduces the difficulty of subsequent cleaning and extends the service life of the equipment.

[0056] The cement mixing device for construction of this invention adopts modular installation and has strong adaptability. The scraper component of the cement mixing device for construction of this invention is embedded in the receiving annular groove at the upper port of the tank. The drive gear can be raised and lowered for easy switching of the linkage state between the scraper and the auger according to the working conditions. At the same time, the discharge pipe is equipped with a valve to flexibly control the discharge volume. The overall structure is reasonably designed and suitable for different types of cement mixing operation scenarios.

[0057] The cement mixing device for building construction of this invention operates smoothly and reliably. Through the inclusion of auxiliary components such as a base, bearings, and protective covers, the cement mixing device ensures the stability of the rotation of the drive shaft, mixing shaft, and auger, reduces vibration and noise, and improves the long-term reliability and safety of the equipment.

[0058] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A cement mixing device for building construction, characterized in that, include: Support frame; A storage tank is installed on the upper part of the support frame. An agitator is installed inside the storage tank. A scraper assembly for scraping off cement slurry adhering to the inner wall of the storage tank is installed on the inner wall of the storage tank in an adjustable position. A conveying pipe is installed at the lower part of the support frame. One end of the conveying pipe has a feed inlet, which is connected to the storage tank through a discharge pipe. The other end of the conveying pipe has a discharge outlet. An auger for conveying cement slurry from the feed inlet to the discharge outlet is rotatably installed inside the conveying pipe. A linkage mechanism for driving the scraper assembly and the auger is mounted on the support frame.

2. The cement mixing device for building construction according to claim 1, characterized in that, The wall scraping assembly includes: The movable inner ring is rotatably installed inside the storage tank; A cleaning plate is connected to the movable inner ring and is attached to the inner wall of the storage tank.

3. The cement mixing device for building construction according to claim 2, characterized in that, The storage tank includes a tank body and a cover plate, and the movable inner ring is rotatably fitted into the upper port of the tank body.

4. The cement mixing device for building construction according to claim 3, characterized in that, The stirrer is mounted on the cover plate.

5. The cement mixing device for building construction according to claim 3, characterized in that, The linkage mechanism includes: A drive shaft is rotatably mounted on the support frame, and one end of the drive shaft is driven to the auger via a gear assembly; An electric motor is mounted on the support frame, and the output shaft of the electric motor is coaxially connected to the transmission shaft; A drive gear is coaxially connected to the transmission shaft. A rack is mounted on the outer ring surface of the movable inner ring. The rack is arranged along the circumferential direction of the movable inner ring. A perforation is opened in the pipe wall of the tank. One side of the drive gear can movably pass through the perforation and mesh with the rack.

6. The cement mixing device for building construction according to claim 5, characterized in that, The inner wall of the upper port of the tank is formed with a receiving annular groove, and the movable inner ring is rotatably received in the receiving annular groove.

7. The cement mixing device for building construction according to claim 5, characterized in that, The gear assembly includes: The first bevel gear is coaxially connected to the drive shaft; The second bevel gear is coaxially connected to the shaft of the auger, and the second bevel gear meshes with the first bevel gear.

8. The cement mixing device for building construction according to claim 1, characterized in that, The upper end of the discharge pipe is connected to the bottom of the storage tank, and the lower end of the discharge pipe is connected to the inlet. A valve is installed in the discharge pipe.

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