Concrete mixing device

Abstract

The utility model relates to the technical field of building construction tool equipment, concretely relates to a concrete mixing device, the utility model discloses frame structure, front wheel assembly and rear wheel assembly, front wheel assembly assembly is in the front end of frame structure, and the rear wheel assembly rotates assembly is in the rear end of frame structure through the steering shaft, the middle layer position of frame structure is assembled with the bucket body, the top of frame structure is assembled with gearbox and drive motor, and the stirring paddle is connected on the gearbox, and the drive motor rotates the stirring paddle in the bucket body through the gearbox drive, the stirring paddle includes vertical shaft, horizontal seat and paddle body, vertical shaft and gearbox connection are driven by gearbox, and horizontal seat is fixed on vertical shaft and is fixed and assembled paddle body respectively at both ends, paddle body has the bow part, reaches the effect of satisfying specific user demand, facilitating cleaning and efficient stirring.

Description

Technical Field

[0001] This utility model relates to the technical field of construction tools and equipment, specifically to a concrete mixing device. Background Technology

[0002] Concrete mixing plants, as the core equipment for mixing raw materials such as cement, sand, gravel, water, and admixtures into homogeneous concrete, are typically found in large concrete mixer trucks at construction sites. However, for smaller construction environments, such as rural construction or small-scale building projects, these large concrete mixer trucks are overkill and unsuitable. From an economic perspective, users do not consider using such large concrete mixer trucks.

[0003] For such small-scale construction needs, handheld mixers are also used. However, these mixers require manual handling, which means they need to be equipped with personnel and therefore have limitations.

[0004] Currently, for small- to medium-sized concrete mixing applications, new concrete mixing equipment needs to be redesigned. The issues to be addressed include ease of operation, stable operation, and reduced labor load. Utility Model Content

[0005] In order to solve the technical problems and shortcomings of the prior art, the present invention provides a concrete mixing device that can improve the convenience of construction operation, reduce the jamming and failure rate in the mixing process, and improve work efficiency.

[0006] To achieve the above and other related objectives, the present invention adopts the following technical solution: A concrete mixing device includes a frame structure, a front wheel assembly, and a rear wheel assembly. The front wheel assembly is mounted at the front end of the frame structure, and the rear wheel assembly is rotatably mounted at the rear end of the frame structure via a steering shaft. A bucket is mounted in the middle of the frame structure, and a gearbox and a drive motor are mounted at the top of the frame structure. A mixing paddle is connected to the gearbox, and the drive motor drives the mixing paddle to rotate inside the bucket via the gearbox. The agitator includes a vertical shaft, a horizontal seat, and a paddle body; the vertical shaft is connected to and driven by a gearbox, the horizontal seat is fixed on the vertical shaft and the paddle body is fixedly mounted at both ends, the paddle body having a bow.

[0007] Preferably, the bow includes an inverted tip, curved side plates extending from top to bottom, a horizontal connecting plate between the two curved side plates, and a vertical rod in the middle of the connecting plate.

[0008] Preferably, the vertical rod is provided with multiple fixing holes, which are used to fix the bow height to the end of the crossbar by bolts.

[0009] Preferably, the cross seat is provided with a sleeve portion, and a crossbar is inserted through the sleeve portion, with a scraper fixed to the end of the crossbar.

[0010] Preferably, the barrel body has a bulge column at its center, and two scrapers are provided, namely an outer scraper and an inner scraper. The outer scraper scrapes the inner wall of the barrel body near the inner wall, and the inner scraper scrapes the outer wall near the outer wall of the bulge column.

[0011] Preferably, the scraper includes a scraper blade and at least two connecting rods, the scraper blade and the connecting rods are perpendicular to each other, the two connecting rods are respectively close to both ends of the scraper blade, and the upper ends of the two connecting rods are respectively fixed to the ends of two crossbars.

[0012] Preferably, two sets of sleeve and crossbar are provided, and the sleeve and crossbar are fastened to the side by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves a lightweight vehicle body structure through a frame structure, front wheel assembly, and rear wheel assembly, which facilitates the handling and tilting of the barrel. The drive motor has a high speed and low torque. When a large load needs to be driven, a gearbox is required for power conversion. Although the mixing speed of the gearbox-driven mixing paddle decreases, it still meets the mixing requirements and can withstand the resistance of cement mortar, thus improving the reliability of mixing. The mixing paddle is designed with a bow-like structure and adopts a hull design to meet the problem of excessive or uneven resistance from cement mortar to the mixing paddle during fluid movement. This improves the force balance of the mixing paddle during the mixing process, making it more durable and extending its service life.

[0014] 2. In this utility model, the bow adopts a pointed part to reduce resistance, and the symmetrical curved side plate part adopts a part to increase the stirring range. At the same time, the connecting plate part can improve the structural strength and avoid deformation.

[0015] 3. The bulging column can prevent the accumulation of sand or gravel in the center. The inner and outer scrapers can better mix the particles and make them easier to clean. The scraper structure is easy to assemble and replace, and is also easy to clean. It is elastic and can improve the scraping force.

[0016] Other additional advantages and benefits of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a structural side view of an embodiment of this application; Figure 2 yes Figure 1 A sectional view at point AA; Figure 3 yes Figure 1 A cross-sectional view at BB; Figure 4 This is a three-dimensional schematic diagram of the main structure; Figure 5 This is a partial structural diagram of the agitator.

[0018] Explanation of reference numerals for major components: 1. Frame structure; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Tank body; 5. Gearbox; 6. Drive motor; 7. Agitator; 71. Vertical shaft; 72. Horizontal seat; 73. Paddle body; 731. Bow; 732. Tip; 733. Curved side plate; 734. Connecting plate; 735. Vertical rod; 736. Fixing hole; 8. Bolt; 91. Outer scraper; 92. Inner scraper; 93. Scraper; 94. Connecting rod; 10. Horizontal rod; 11. Sleeve; 12. Discharge valve; 13. Bulging column. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following specific examples illustrate the embodiments of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0021] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, it should be noted that in the description of this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the invention based on the specific circumstances. Example

[0022] This invention discloses a concrete mixing device, as described in the embodiments below. Figure 1 , Figure 2 and Figure 3 As shown, the structure includes a frame structure 1, a front wheel assembly 2, and a rear wheel assembly 3. The frame structure 1 is a rectangular frame. The front wheel assembly 2 is mounted on the front end of the frame structure 1, and the rear wheel assembly 3 is rotatably mounted on the rear end of the frame structure 1 via a steering shaft. The rear wheel assembly 3 can be steered via the steering shaft. This trolley structure enables the movement of the bucket 4, making it suitable for moving the bucket 4 on the construction site.

[0023] A tank 4 is installed in the middle of the frame structure 1. The tank 4 is used to hold concrete mortar and other materials that need to be mixed. A gearbox 5 and a drive motor 6 are installed at the top of the frame structure 1. A mixing paddle 7 is connected to the gearbox 5. The drive motor 6 drives the mixing paddle 7 to rotate inside the tank 4 through the gearbox 5. The gearbox 5 is installed at the top of the frame structure 1 for easy maintenance.

[0024] exist Figure 2 , Figure 3 , Figure 4 and Figure 5 In this design, the mixing paddle 7 includes a vertical shaft 71, a horizontal seat 72, and a paddle body 73. The vertical shaft 71 is connected to and driven by the gearbox 5. The horizontal seat 72 is fixed to the vertical shaft 71 and the paddle body 73 is fixedly mounted at both ends. The paddle body 73 has a bow 731. To achieve high mixing efficiency, a unique paddle body 73 is designed specifically for concrete.

[0025] Specifically, the bow 731 includes an inverted tip 732, curved side plates 733 extending from top to bottom, a horizontal connecting plate 734 between the two curved side plates 733, and a vertical rod 735 in the middle of the connecting plate 734. With this design, the concrete can be tumbled up and down by rotational power, increasing the mixing force, and the resistance is not very large.

[0026] To accommodate different user needs and concrete mixing requirements with varying proportions, the vertical rod 735 is equipped with multiple fixing holes 736. These fixing holes 736 are secured to the end of the horizontal seat 72 via bolts 8, allowing for adjustment of the bow 731's fixed height. This enables the assembly of a suitable bow 731 height as needed.

[0027] To accommodate different scraper installation positions, a sleeve portion 11 is provided on the cross seat 72. A crossbar 10 passes through the sleeve portion 11, and a scraper is fixed to the end of the crossbar 10. The fixed position of the crossbar 10 on the sleeve portion 11 can be adjusted as needed.

[0028] In this design, to prevent gravel accumulation in the center, a bulge pillar 13 is installed at the center of the barrel 4. Two scrapers are provided: an outer scraper 91 and an inner scraper 92. The outer scraper 91 scrapes the inner wall of the barrel 4 near its inner side, while the inner scraper 92 scrapes the outer wall of the bulge pillar 13 near its outer side. The bulge pillar 13 provides both guiding and reaction forces to both the inner scraper 92 and the outer scraper 91.

[0029] In this design, the scraper includes a scraper blade 93 and at least two connecting rods 94. The scraper blade 93 and the connecting rods 94 are perpendicular to each other. The two connecting rods 94 are located near both ends of the scraper blade 93, and the upper ends of the two connecting rods 94 are fixed to the ends of the two crossbars 10. This design allows the forces acting on the scraper blade 93 to influence each other.

[0030] Two sets of sleeve portion 11 and crossbar 10 are provided, and the sleeve portion 11 and crossbar 10 are fastened to the side by bolts 8. It should be noted that in the scheme of this application, two sets of sleeve portion 11 and crossbar 10 are provided, and at least one set can be fixed, while the other set can be left unfixed. For the unfixed set of sleeve portion 11 and crossbar 10, it can slide relative to each other under force.

[0031] Therefore, the working principle of this solution is as follows: This utility model achieves a lightweight vehicle structure through the frame structure 1, the front wheel assembly 2, and the rear wheel assembly 3, which facilitates the handling and tilting of the barrel 4. The drive motor 6 has a high speed and low torque. When it needs to drive a large load, it needs to use the gearbox 5 to convert the power. Thus, although the mixing speed of the gearbox 5 driving the mixing paddle 7 decreases, it still meets the mixing requirements and can withstand the resistance of cement mortar, etc., improving the reliability of mixing. The design of the mixing paddle 7 adopts the bow 731 for connection. The hull design meets the requirements of excessive or uneven resistance of cement mortar to the mixing paddle 7 during fluid movement, thereby improving the force balance of the mixing paddle 7 during the mixing process, making it more durable and extending its service life.

[0032] In addition, the bucket body 4 of this solution is equipped with a discharge valve 12. Opening the discharge valve 12 will discharge the mixed concrete.

[0033] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete mixing device, comprising a frame structure (1), a front wheel assembly (2), and a rear wheel assembly (3), wherein the front wheel assembly (2) is mounted on the front end of the frame structure (1), and the rear wheel assembly (3) is rotatably mounted on the rear end of the frame structure (1) via a steering shaft, characterized in that, A barrel (4) is assembled in the middle layer of the frame structure (1), and a gearbox (5) and a drive motor (6) are assembled on the top of the frame structure (1). A stirring paddle (7) is connected to the gearbox (5), and the drive motor (6) drives the stirring paddle (7) to rotate inside the barrel (4) through the gearbox (5). The agitator (7) includes a vertical shaft (71), a horizontal seat (72), and a paddle body (73); the vertical shaft (71) is connected to the gearbox (5) and driven by the gearbox (5), the horizontal seat (72) is fixed on the vertical shaft (71) and the paddle body (73) is fixedly mounted at both ends, the paddle body (73) having a bow (731).

2. The concrete mixing device according to claim 1, characterized in that, The bow (731) includes an inverted tip (732), a curved side plate (733) extending from top to bottom, a horizontal connecting plate (734) between the two curved side plate (733), and a vertical rod (735) in the middle of the connecting plate (734).

3. The concrete mixing device according to claim 2, characterized in that, The vertical rod (735) is provided with a plurality of fixing holes (736), which are used by bolts (8) to fix the end of the cross seat (72) to achieve the adjustment of the fixed height of the bow (731).

4. The concrete mixing device according to claim 1, characterized in that, A sleeve portion (11) is provided on the cross seat (72), and a cross rod (10) is inserted inside the sleeve portion (11). A scraper is fixed at the end of the cross rod (10).

5. The concrete mixing device according to claim 4, characterized in that, The barrel (4) has a bulge column (13) at its center. Two scrapers are provided: an outer scraper (91) and an inner scraper (92). The outer scraper (91) scrapes the inner wall of the barrel (4) near its inner sidewall, and the inner scraper (92) scrapes the outer wall of the barrel (4) near its outer sidewall near its bulge column (13).

6. The concrete mixing device according to claim 5, characterized in that, The scraper includes a scraper (93) and at least two connecting rods (94). The scraper (93) and the connecting rods (94) are perpendicular to each other. The two connecting rods (94) are respectively close to the two ends of the scraper (93), and the upper ends of the two connecting rods (94) are respectively fixed to the ends of the two crossbars (10).

7. The concrete mixing device according to claim 6, characterized in that, Two sets of sleeve (11) and crossbar (10) are provided, and the sleeve (11) and crossbar (10) are fastened to the side by bolts (8).

Images