Device for secondary grouting of fan foundation

Abstract

The utility model discloses a fan foundation secondary grouting device which comprises a concrete chute with an adjustable inclination angle, one end of the concrete chute is connected with a discharge port of stirring equipment, the other end of the concrete chute extends into a pouring cavity, the concrete chute comprises a plurality of spliced U-shaped plates, and the number of the U-shaped plates can be increased or decreased according to the distance. The pouring cavity is in a circular ring shape, an outer mold frame is arranged on the outer circumference of the pouring cavity, an inner mold frame is arranged on the inner circumference of the pouring cavity, the outer mold frame and the inner mold frame are spliced through a plurality of arc-shaped mold plates, flanges are arranged on the two sides of each arc-shaped mold plate, a plurality of connecting holes are formed in the flanges, and every two adjacent arc-shaped mold plates are connected through a first bolt; when the device for secondary grouting of the fan foundation is used, the length and the inclination angle of the concrete chute can be adjusted, smooth flowing and pouring of concrete slurry are guaranteed, operation is easy and convenient, and the device is suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete grouting, in particular to a device for secondary grouting of a fan foundation. Background Art

[0002] The concrete pouring and grouting of a fan is a key link in the construction of a wind farm, involving multiple steps and precautions to ensure the stability and safety of the fan foundation.

[0003] During the secondary grouting of the fan foundation, initially, on-site construction workers filled buckets with grouting material and poured it into the secondary grouting construction layer, which seriously affected the construction progress and quality. This process took a long time, and a large amount of moisture in the slurry would also be lost.

[0004] Later, the emergence of a concrete chute greatly shortened the grouting efficiency. However, the existing concrete chute has a relatively simple structure, and its conveying distance and inclination angle are not easy to adjust during use, and it cannot meet the use of slurries with different fluidities, so the effect is not ideal. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above problems and provide a device for secondary grouting of a fan foundation that can adjust the length and inclination angle of a concrete chute, ensure the smooth flow and pouring of concrete slurry, and is easy to operate.

[0006] To achieve the above purpose, the technical solution of the utility model is: a device for secondary grouting of a fan foundation, including a concrete chute with an adjustable inclination angle. One end of the concrete chute is connected to the discharge port of a mixing device, and the other end extends into a pouring cavity. The concrete chute includes a plurality of spliced U-shaped plates, and the number of U-shaped plates can be increased or decreased according to the distance.

[0007] Preferably, the pouring cavity is circular, an outer formwork is provided on the outer circumference of the pouring cavity, and an inner formwork is provided on the inner circumference. Both the outer formwork and the inner formwork are spliced by a plurality of arc-shaped templates.

[0008] Preferably, flanges are provided on both sides of the arc-shaped template, and a plurality of connection holes are provided on the flanges. Adjacent arc-shaped templates are connected by bolt 1.

[0009] Preferably, a connecting rod is provided on the outer side of the U-shaped plate, and a connecting groove is provided on the inner side of the U-shaped plate. Adjacent U-shaped plates are spliced by the cooperation of the connecting rod and the connecting groove, and the two spliced U-shaped plates are fixed by bolt 2.

[0010] Preferably, a fixed cylinder is provided on the bottom surface of the U-shaped plate, a rotatable U-shaped support rod is provided in the fixed cylinder, an external thread is provided on the circumference of the U-shaped support rod, and an adjusting sleeve matching the external thread is provided below the U-shaped support rod.

[0011] Preferably, a locking bolt for abutting against the U-shaped support rod is provided on the fixed cylinder.

[0012] A device for secondary grouting of a fan foundation disclosed by the present utility model includes a concrete chute with an adjustable inclination angle. One end of the concrete chute is connected to the discharge port of a mixing device, and the other end extends into a pouring cavity. The concrete chute includes a plurality of spliced U-shaped plates, and the number of the U-shaped plates can be increased or decreased according to the distance. The pouring cavity is annular, an outer formwork is provided on the outer circumference of the pouring cavity, and an inner formwork is provided on the inner circumference. Both the outer formwork and the inner formwork are spliced by a plurality of arc-shaped templates. Flanges are provided on both sides of the arc-shaped template, and a plurality of connection holes are provided on the flanges. Adjacent two arc-shaped templates are connected by a bolt I. Compared with the prior art, when the device for secondary grouting of a fan foundation is used, it has the beneficial effects of being able to adjust the length and inclination angle of the concrete chute, ensuring the smooth flow and pouring of the concrete slurry, and being easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of a device for secondary grouting of a fan foundation according to the present utility model Figure 1 .

[0014] Figure 2 is a schematic diagram of the overall structure of a device for secondary grouting of a fan foundation according to the present utility model Figure 2 .

[0015] Figure 3 is for the present utility model Figure 1 an enlarged schematic structural view at A.

[0016] Figure 4 is a connection schematic diagram of two adjacent U-shaped plates in the present utility model.

[0017] Figure 5 is for the present utility model Figure 2 an enlarged schematic structural view at B.

[0018] In the figure: 1, outer formwork; 2, inner formwork; 3, arc-shaped template; 31, flange; 32, bolt I; 4, concrete chute; 41, U-shaped plate; 411, connecting rod; 412, connection groove; 413, bolt II; 414, fixed cylinder; 415, U-shaped support rod; 416, locking bolt; 417, adjusting sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Now, the present utility model will be further described in detail with reference to the drawings. The drawings are simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0020] Please refer toFigures 1-5 , a device for secondary grouting of a fan foundation, including a concrete chute 4 with an adjustable inclination angle. One end of the concrete chute 4 is connected to the discharge port of the mixing equipment, and the other end extends into the pouring cavity. The concrete chute 4 includes a plurality of spliced U-shaped plates 41, and the number of the U-shaped plates 41 can be increased or decreased according to the conveying distance of the concrete grouting.

[0021] During use, the mixing equipment prepares concrete slurry. After preparation, the concrete slurry is discharged into the inclined concrete chute 4. Since the concrete slurry has fluidity and the concrete chute is inclined, the concrete slurry will enter the pouring cavity along the concrete chute, realizing the pouring of the wind turbine foundation; before use, the inclination angle of the concrete chute 4 is adjustable to make the slurry flow more smoothly; in addition, the slurry conveying distance can be adjusted by increasing or decreasing the U-shaped plates 41, with a large application range.

[0022] In this embodiment, the pouring cavity is annular. An outer formwork 1 is provided on the outer circumference of the pouring cavity, and an inner formwork 2 is provided on the inner circumference. Both the outer formwork 1 and the inner formwork 2 are spliced by a plurality of arc-shaped templates 3.

[0023] Wherein, flanges 31 are provided on both sides of the arc-shaped template 3. The flanges on the arc-shaped template 3 constituting the outer formwork 1 extend outward, and the flanges on the arc-shaped template 3 constituting the inner formwork 2 extend inward; ensuring the flatness of the outer surface of the pouring cavity; a plurality of connection holes are provided on the flanges 31, and every two adjacent arc-shaped templates 3 are connected by bolts 32.

[0024] After forming the outer formwork 1 and the inner formwork 2, both the outer formwork 1 and the inner formwork 2 are supported by steel pipes or wood.

[0025] Furthermore, a connecting rod 411 is provided on the outer side of the U-shaped plate 41, and a connecting groove 412 is provided on the inner side of the U-shaped plate 41. Every two adjacent U-shaped plates 41 are spliced by the cooperation of the connecting rod 411 and the connecting groove 412, and the two spliced U-shaped plates 41 are fixed by bolts 413.

[0026] In this utility model, since a plurality of U-shaped plates 41 are lap-fixed end to end on the inner wall, the width of the entire concrete chute 4 gradually increases from the mixing equipment to the pouring cavity, which can ensure the smooth outflow of the slurry and avoid accumulation and overflow.

[0027] Wherein, a fixed cylinder 414 is provided on the bottom surface of the U-shaped plate 41. A rotatable U-shaped support rod 415 is provided in the fixed cylinder 414. The circumference of the U-shaped support rod 415 is provided with an external thread, and an adjusting sleeve 417 matched with the external thread is provided below the U-shaped support rod 415.

[0028] When it is necessary to adjust the inclination angle of the concrete chute 4, just rotate the adjusting sleeve 417; that is to say, the rotation of the adjusting sleeve can extend or retract, thereby adjusting the lower support height and realizing the adjustment of the inclination angle, with simple operation; after the inclination angle is determined, the adjusting sleeve 417 is buried in the underground soil layer.

[0029] As a preferred solution, a locking bolt 416 for abutting against the U-shaped support rod 415 is provided on the fixed cylinder 414. After the inclination angle of the concrete chute 4 is determined, the locking bolt 416 is tightened so that it tightly abuts against the U-shaped support rod 415 to prevent tilting and offset during use.

[0030] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A device for secondary grouting of a fan foundation, characterized in that: It comprises a concrete chute with an adjustable inclination angle, one end of which is connected to a discharge port of a mixing device, and the other end extends into a casting cavity. The concrete chute comprises a plurality of spliced ​​U-shaped plates, and the number of the U-shaped plates can be increased or decreased according to the distance.

2. The device for secondary grouting of fan foundation according to claim 1, characterized in that: The casting cavity is in a circular shape, an outer mold frame is arranged on the outer circumference of the casting cavity, and an inner mold frame is arranged on the inner circumference of the casting cavity, and the outer mold frame and the inner mold frame are both spliced ​​by a plurality of arc-shaped templates.

3. The device for secondary grouting of fan foundation according to claim 2, characterized in that: Flangings are arranged on both sides of the arc-shaped template, and a plurality of connecting holes are arranged on the flangings. Every two adjacent arc-shaped templates are connected by bolts.

4. The device for secondary grouting of fan foundation according to claim 1, characterized in that: The outer side of the U-shaped plate is provided with a connecting rod, and the inner side of the U-shaped plate is provided with a connecting groove. Every two adjacent U-shaped plates are spliced ​​together through the connecting rod and the connecting groove, and the two spliced ​​U-shaped plates are fixed by bolts.

5. The device for secondary grouting of fan foundation according to claim 4, characterized in that: The bottom surface of the U-shaped plate is provided with a fixing cylinder, a rotatable U-shaped support rod is provided in the fixing cylinder, the circumference of the U-shaped support rod is provided with an external thread, and an adjusting sleeve matching the external thread is provided below the U-shaped support rod.

6. The device for secondary grouting of fan foundation according to claim 5, characterized in that: The fixing cylinder is provided with a locking bolt for abutting against the U-shaped supporting rod.

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