A simple concrete mixing device

Abstract

The utility model discloses a simple and easy mixing device of concrete, technical scheme is as follows: including mobile support frame, the upper portion of mobile support frame is provided with the bucket body support frame of adjustable height, the upper portion of bucket body support frame is supported with the rotatable mixing bucket body, the end of mixing bucket body is provided with drive mechanism, and the side portion of bucket body support frame is provided with rotating mechanism, and the utility model passes through the bucket body support frame and rotatable mixing bucket body design of adjustable height, has solved the problem that traditional mixing equipment is big in size, and the inconvenient adjustment has the advantages that simple structure, low cost and convenient adjustment are possessed.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixing, specifically to a simple concrete mixing device. Background Technology

[0002] In experiments such as concrete strength testing, small-batch concrete mixing is often required. Traditional solutions necessitate the purchase of large mixing equipment, resulting in high equipment costs and significant space requirements in the laboratory. This is particularly problematic in space-constrained laboratory settings, where the storage and use of large mixing equipment are severely limited. Furthermore, conventional mixing equipment struggles to flexibly adjust the mixing angle and height to meet experimental needs, leading to inconvenient operation and poor mixing results. Current technology lacks a simple, low-cost, and easily adjustable small-scale concrete mixing device that can meet the practical needs of small-batch concrete mixing in laboratories and other similar settings. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a simple concrete mixing device.

[0004] This utility model is achieved through the following technical solution: This application provides a simple concrete mixing device, the technical solution of which is as follows: it includes a movable support frame, an adjustable bucket support frame is provided on the upper part of the movable support frame, a rotatable mixing bucket is supported on the upper part of the bucket support frame, a drive mechanism is provided at the end of the mixing bucket, and a rotating mechanism is provided on the side of the bucket support frame.

[0005] Furthermore, this application also proposes that a support rod is fixed to the lower front end of the barrel support frame, and support wheels supporting the front end of the mixing barrel are provided on both sides of the support rod. The center of the rear end of the mixing barrel is connected to the output shaft of the drive mechanism.

[0006] Furthermore, this application also proposes that the drive mechanism includes a reducer fixed to the tail of the tank support frame, the output shaft of the reducer being fixedly connected to the center of the tail of the mixing tank, and the input end of the reducer being connected to the main shaft of the drive motor.

[0007] Furthermore, this application also proposes that the movable support frame is provided with adjustable vertical rods on both sides for vertical height adjustment. The adjustable vertical rods are rotatably connected to the barrel support frame via a rotating shaft, and the adjustable vertical rods are fixed by inserting multiple pins into multiple pin holes provided on the movable support frame.

[0008] Furthermore, this application also proposes that the rotating mechanism includes a fixed plate body fixed to the outside of the adjusting vertical rod, the fixed plate body having multiple insertion holes, any one of the insertion holes being connected and fixed to the middle of the rotating rod by a fixing screw, and the end of the rotating rod being fixedly connected to the rotating shaft connected to the barrel support frame.

[0009] Furthermore, this application also proposes that the interior of the mixing tank is equipped with stirring blades. Compared with existing technologies, the advantages of this utility model are: by using an adjustable height barrel support frame and a rotatable mixing barrel design, this utility model solves the problems of large size and inconvenient adjustment of traditional mixing equipment, and has the advantages of simple structure, low cost and easy adjustment. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is another schematic diagram of the utility model; Figure 3 This is a schematic diagram of the structure of this practical mixing tank; In the diagram: 1. Movable support frame; 2. Adjusting vertical rod; 3. Pin rod; 4. Barrel support frame; 5. Support rod; 6. Support wheel; 7. Mixing barrel; 71. Mixing blade; 8. Reducer; 9. Drive motor; 10. Rotating rod; 11. Fixed disc; 12. Insertion hole; 13. Fixing screw. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: like Figure 1-3 As shown, this application proposes a simple concrete mixing device, including a movable support frame, an adjustable bucket support frame on the upper part of the movable support frame, a rotatable mixing bucket supported on the upper part of the bucket support frame, a drive mechanism at the end of the mixing bucket, and a rotating mechanism on the side of the bucket support frame.

[0012] The mobile support frame can be a metal frame structure with casters at the bottom for easy movement of the entire device. The height of the support frame is adjustable, specifically by installing adjusting vertical rods on both sides of the support frame, with multiple height adjustments achieved through the insertion and fixing of pins into holes. The mixing tank is preferably a cylindrical metal container, which can be a recycled oil drum. Its rotation support can employ a bearing structure or a support wheel structure, with the support wheels symmetrically positioned on both sides of the tank for balance. The drive mechanism can be a combination of a motor and a reducer. The motor power is selected from 0.5-3kW depending on the mixing capacity, and the reducer output shaft can be rigidly connected to the mixing tank using a flange. The rotating mechanism can include a fixed disc fixed to the adjusting vertical rods, with multiple holes arranged in a ring on the disc. The mixing angle is adjusted by selecting different holes to fix the rotating rod.

[0013] This technical solution achieves portability and adaptability of the mixing device through the combination of a movable support frame and an adjustable-height drum support frame. The rotating design of the mixing drum, combined with the drive mechanism, enables effective mixing of small batches of concrete. Compared to large, stationary mixers, this device has a simple and compact structure, significantly reducing manufacturing costs, making it particularly suitable for applications such as laboratories requiring small-volume concrete mixing. The height-adjustable drum support frame and rotating mechanism allow for flexible adjustment of the working position and angle according to different mixing needs, solving the problems of high procurement costs and large space occupation associated with traditional large-scale mixing equipment. All components of the entire device work collaboratively, achieving miniaturization, lightweight design, and ease of operation while ensuring basic mixing functions.

[0014] Furthermore, this application also proposes that a support rod is fixed to the lower front end of the barrel support frame, and support wheels supporting the front end of the mixing barrel are provided on both sides of the support rod. The center of the rear end of the mixing barrel is connected to the output shaft of the drive mechanism.

[0015] Specifically, the support rod is made of downwardly bent metal tubing welded and fixed to the lower front end of the tank support frame. The support wheels are preferably made of nylon-coated bearings with a diameter of 80-120mm, and are symmetrically bolted to both sides of the support rod. The front end of the mixing tank can be supported by a V-shaped roller structure or a flat roller structure, with the V-shaped roller having an angle of 90-120 degrees with the contact surface of the tank body. The output shaft of the drive mechanism is connected to the center of the rear end of the mixing tank via a flange coupling. The flange diameter matches 1 / 3-1 / 4 of the tank diameter, and there are at least four bolts evenly distributed circumferentially.

[0016] Therefore, this technical solution achieves stable support for the front end of the mixing tank through a combination of support rods and support wheels. The support wheels effectively reduce frictional resistance during tank rotation, while the rigid fixation of the support rods ensures the overall stability of the support structure. Compared to directly using a bracket for support, this design results in smoother tank rotation and reduces the likelihood of the support structure shifting due to vibration. In practice, the spacing between the support wheels is adjustable to accommodate mixing tanks of different diameters, with an adjustment range of 500-800mm. This structure is particularly suitable for scenarios requiring frequent tank replacements, as a simple adjustment of the wheel assembly allows for quick adaptation to new tanks.

[0017] Furthermore, this application also proposes that the drive mechanism includes a reducer fixed to the tail of the tank support frame, the output shaft of the reducer being fixedly connected to the center of the tail of the mixing tank, and the input end of the reducer being connected to the main shaft of the drive motor.

[0018] The speed reducer is fixed to the rear of the tank support frame using a flange mounting method, and rigidly connected by bolts. The speed reducer employs a worm gear reducer, which has a large reduction ratio and torque sufficient to drive the mixing tank to rotate. The output shaft of the speed reducer is coaxially fixed to the bushing at the rear of the mixing tank via a keyway structure, ensuring stable torque transmission. The drive motor is connected to the input end of the speed reducer via a coupling; the coupling can be either a flexible coupling or a rigid coupling. As a preferred embodiment, the drive motor is a three-phase asynchronous motor, with its power selected within the range of 0.75-2.2kW based on the volume of the mixing tank. The speed reducer is a worm gear reducer, with a reduction ratio designed between 15:1 and 30:1 according to the required mixing speed.

[0019] This technical solution creates a compact power transmission structure by directly fixing the reducer to the rear of the mixing tank support frame. The reducer converts the high-speed rotation of the drive motor into the operating speed required by the mixing tank, while providing sufficient output torque. This solves the problems of large space occupation and loose structure in the power transmission system of small mixing devices. Specifically, the direct connection between the reducer and the mixing tank avoids the slippage risk of traditional belt drives, improving transmission efficiency. Compared with existing technologies, this solution has the advantages of compact structure, reliable transmission, and simple maintenance, making it particularly suitable for small-batch concrete mixing operations in space-constrained locations such as laboratories.

[0020] Furthermore, this application also proposes that the movable support frame is provided with adjustable vertical rods on both sides for vertical height adjustment. The adjustable vertical rods are rotatably connected to the barrel support frame via a rotating shaft, and the adjustable vertical rods are fixed by inserting multiple pins into multiple pin holes provided on the movable support frame.

[0021] Specifically, the adjusting rod adopts a telescopic structure, and its height is adjusted by engaging pins with pin holes of different heights. In a preferred embodiment, the adjusting rod consists of inner and outer sleeves. The inner sleeve has evenly spaced positioning holes, and the outer sleeve has corresponding pin holes, which are then used for fixing. Furthermore, the rotating shaft employs a bearing structure with a self-locking function to ensure stable stopping of the barrel support frame at any angle. For example, the pin can be a spring pin structure for easy and quick insertion and removal while ensuring a stable connection.

[0022] Therefore, this technical solution achieves flexible adjustment of the working height of the mixing device through an adjustable vertical rod structure. The multi-stage pin hole design provides precise height positioning, and the rotating shaft connection ensures smooth adjustment. Compared to fixed-height structures, this design can adapt to the installation requirements of mixing tanks of different sizes, solving the problem of limited applicability caused by the non-adjustable height of traditional equipment. In practice, operators only need to pull out the pin, adjust the height, and then re-fix it to complete the adjustment, significantly improving the ease of use of the equipment.

[0023] Furthermore, this application also proposes that the rotating mechanism includes a fixed plate body fixed to the outside of the adjusting vertical rod, the fixed plate body having multiple insertion holes, any one of the insertion holes being connected and fixed to the middle of the rotating rod by a fixing screw, and the end of the rotating rod being fixedly connected to the rotating shaft connected to the barrel support frame.

[0024] The fixed disc is secured to the outside of the adjusting vertical rod by welding or bolting. The disc can be made of cast iron or steel plate. Four to eight insertion holes are evenly distributed around the circumference of the disc, with a diameter slightly larger than the diameter of the fixing screw. The fixing screw uses a threaded connection, and a lock nut can be installed at the end of the screw. The rotating rod is a steel member with a connecting hole in the middle that mates with the fixing screw, and its end is fixedly connected to the rotating shaft by welding. As a preferred embodiment, the length of the rotating rod is adjustable via a telescopic sleeve structure.

[0025] This technical solution achieves stepless adjustment of the tank support frame's tilt angle through an adjustable-angle rotating rod mechanism. Specifically, by selecting different positions to fix the rotating rod with holes, the support angle of the rotating rod can be changed, thereby adjusting the working tilt angle of the mixing tank. Compared to traditional fixed-angle structures, this design allows for flexible adjustment of the tank angle according to different mixing needs, which is beneficial for improving mixing efficiency and material mixing uniformity. Furthermore, the modular design facilitates disassembly and maintenance of each component, reducing operating costs.

[0026] Furthermore, this application also proposes that the interior of the mixing tank is equipped with stirring blades.

[0027] The mixing blades are uniformly fixed to the inner wall of the mixing tank and can adopt a spiral blade structure. The spiral blades propel the material axially through a continuous spiral surface. By placing the mixing blades inside the mixing tank, when the tank rotates, the blades exert a forced shearing effect on the concrete, ensuring full contact between the aggregate and the cement paste. Compared to a simple drum mixer without blades, this design increases mixing efficiency by more than 40% and effectively eliminates material stratification. In practical implementation, a double-spiral blade installed at a 45° angle can simultaneously achieve axial propulsion and radial diffusion, completing the uniform mixing of C30 concrete within 3-5 minutes, meeting the needs of small-batch laboratory sample preparation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simple concrete mixing device, characterized in that: The device includes a movable support frame (1), an adjustable barrel support frame (4) on the upper part of the movable support frame (1), a rotatable stirring barrel (7) supported on the upper part of the barrel support frame (4), a drive mechanism at the end of the stirring barrel (7), and a rotating mechanism on the side of the barrel support frame (4); a support rod (5) is fixed at the lower front end of the barrel support frame (4), and support wheels (6) supporting the front end of the stirring barrel (7) are provided on both sides of the support rod (5); the center of the tail of the stirring barrel (7) is connected to the output shaft of the drive mechanism.

2. The simple concrete mixing device according to claim 1, characterized in that: The drive mechanism includes a reducer (8) fixed at the tail of the barrel support frame (4), the output shaft of the reducer (8) is fixedly connected to the center of the tail of the mixing barrel (7), and the input end of the reducer (8) is connected to the main shaft of the drive motor (9).

3. The simple concrete mixing device according to claim 1, characterized in that: The movable support frame (1) is provided with adjustable vertical rods (2) on both sides for adjusting the height. The adjustable vertical rods (2) are rotatably connected to the barrel support frame (4) through a rotating shaft. The adjustable vertical rods (2) are fixed by multiple pins (3) inserted into multiple pin holes provided on the movable support frame (1).

4. A simple concrete mixing device according to claim 1, characterized in that: The rotating mechanism includes a fixed plate (11) fixed on the outside of the adjusting vertical rod (2). The fixed plate (11) has multiple insertion holes (12). Any one of the insertion holes (12) is connected and fixed to the middle of the rotating rod (10) through a fixing screw (13). The end of the rotating rod (10) is fixedly connected to the rotating shaft connected to the barrel support frame (4).

5. A simple concrete mixing device according to claim 1, characterized in that: The mixing tank (7) is equipped with mixing blades (71) inside.

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