Concrete pouring and mixing device for cast-in-place pile and steel pipe column

Abstract

The application discloses a concrete pouring and stirring device for cast-in-place pile and steel pipe column, which comprises an outer cylinder, the bottom of the outer cylinder is provided with an annular float, the inside of the outer cylinder is provided with a non-rotating blade, the upper end of the non-rotating blade is fixedly connected with the inner wall of the outer cylinder, and the lower end of the non-rotating blade extends out of the outer cylinder. Compared with the prior art, the device has the beneficial effects that in the construction process, the device is directly placed at the bottom of the cast-in-place pile / steel pipe, the concrete stirring work in the concrete pouring process of the cast-in-place pile / steel pipe concrete column can be completed without the aid of other tools, the segregation can be avoided, the mechanical shifts can be saved, the concrete pouring workers can be kept away from the dangerous edge, and the risk of the operation environment is reduced.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology, and in particular to a concrete pouring and mixing device for cast-in-place piles and steel pipe columns. Background Technology

[0002] In building construction, especially in the construction of foundations and various high-rise buildings, cast-in-place concrete piles and steel-concrete composite columns are very common structural components. However, during the construction of these structural components, high-lift concrete pouring is required, which can easily cause concrete segregation and adversely affect the quality of the finished product.

[0003] To address this issue, the commonly used method is to install concrete pouring guide pipes to prevent segregation during concrete pouring. During the pouring process, the guide pipes need to be continuously raised and shortened as the concrete is poured.

[0004] During construction, it is necessary to install a guide pipe, and during concrete pouring, the guide pipe needs to be hoisted as the liquid level rises below, and then the length needs to be shortened manually before the guide pipe is rearranged. This process consumes machine shifts, and during the process of manually shortening the length of the guide pipe, it is necessary to stand on the edge of the grouting pile hole / steel pipe column, so the operating environment is relatively dangerous and the cost is high. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a concrete pouring and mixing device for cast-in-place piles and steel pipe columns, solving the problems of high machine-hour costs and relatively dangerous operating environments during the concrete pouring process for cast-in-place piles / steel pipe concrete in building construction projects.

[0006] To achieve this technical objective, the present invention adopts the following solution:

[0007] A concrete pouring and mixing device for cast-in-place piles and steel pipe columns includes an outer cylinder, an annular float at the bottom of the outer cylinder, and a shaftless blade inside the outer cylinder. The upper end of the shaftless blade is fixedly connected to the inner wall of the outer cylinder, and the lower end of the shaftless blade extends out of the outer cylinder.

[0008] The outer cylinder forms the frame of the entire device, supporting its operation. The shaftless blades are metal spiral blades fixed inside the outer cylinder. They rotate the entire device by the falling concrete, thus agitating the freshly poured concrete. Since the blades have no central axis, the accumulation of concrete on the surface is slower, making maintenance easier. The annular float ensures that the entire device can float above the liquid surface during concrete pouring and can be promptly removed and transferred to the next construction site after the concrete pouring is completed.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] During construction, the device of this invention can be placed directly at the bottom of the cast-in-place pile / steel pipe, and the concrete mixing work inside the cast-in-place pile / steel pipe concrete column can be completed without the need for other tools. This not only avoids segregation, but also saves machine hours, keeps concrete pouring workers away from dangerous edges, and reduces the risk of the working environment.

[0011] Furthermore, the connection between the shaftless blade and the outer cylinder is located above the annular buoy.

[0012] Furthermore, there are 3 to 7 shaftless blades, and multiple shaftless blades are arranged symmetrically around the center.

[0013] Furthermore, the blades without a rotating shaft are metal spiral blades. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the concrete pouring and mixing device according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 The main view;

[0016] Figure 3 for Figure 1 Top view;

[0017] Figure 4 This is a schematic diagram illustrating the application of the concrete pouring and mixing device according to an embodiment of the present invention;

[0018] The markings in the diagram are: 1. Outer cylinder; 2. Annular float; 3. Blade without a rotating shaft. Detailed Implementation

[0019] To fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments, but the present invention is not limited thereto.

[0020] See Figures 1 to 3This invention provides a concrete pouring and mixing device for cast-in-place piles and steel pipe columns, comprising an outer cylinder 1, which is made of ordinary steel plate processed, rolled, and welded in a factory, serving as support for the overall structure. An annular float 2 is provided at the bottom of the outer cylinder 1. The annular float 2 is made of ordinary steel pipe processed, rolled, sealed, and then welded to the bottom of the outer cylinder 1, ensuring that the entire device can float above the surface of the poured concrete. Inside the outer cylinder 1 are 3-7 non-rotating blades 3, which are metal spiral blades, arranged in a centrally symmetrical manner. The upper end of the non-rotating blade 3 is fixedly connected to the inner wall of the outer cylinder 1, and the connection point between the non-rotating blade 3 and the outer cylinder 1 is located above the annular float 2. The lower end of the non-rotating blade 3 extends out of the outer cylinder 1. During concrete pouring, the falling fluid concrete impacts the non-rotating blade 3, causing the entire device to rotate and agitate the freshly fallen concrete.

[0021] See Figure 4 The process of using the concrete pouring and mixing device for cast-in-place piles and steel pipe columns according to the present invention is as follows: Before pouring concrete into the cast-in-place pile or steel pipe column, the device of the present invention is first arranged at the bottom by a tower crane, and then the concrete is poured. The entire device is driven to rotate by the falling concrete, thereby agitating the freshly poured concrete. Since there is no rotating shaft, the blades 3 have no central rotating shaft; the function of the annular float 2 is to ensure that the entire device can float above the liquid surface during the concrete pouring process, and can be promptly removed after the concrete is poured in this part and transferred to the next part for construction.

[0022] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A concrete pouring and mixing device for cast-in-place piles and steel pipe columns, comprising an outer cylinder (1), characterized in that, The bottom of the outer cylinder (1) is provided with an annular float (2), and the inside of the outer cylinder (1) is provided with a shaftless blade (3). The upper end of the shaftless blade (3) is fixedly connected to the inner wall of the outer cylinder (1). The connection between the shaftless blade (3) and the outer cylinder (1) is located above the annular float (2). The lower end of the shaftless blade (3) extends out of the outer cylinder (1). There are 3 to 7 shaftless blades (3). The multiple shaftless blades (3) are arranged symmetrically at the center. The shaftless blades (3) are metal spiral blades.

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