Fan foundation template and fixing device thereof

Abstract

The utility model relates to a fan foundation template and a fixing device thereof, the fan foundation template comprises a steel template, the steel template comprises a plurality of module units which are mutually spliced, and the two end sides of each module unit protrude outwards to form connecting edges. The fan foundation formwork fixing device comprises a plurality of clamping columns arranged around a steel formwork by a circle at intervals, the side walls of the clamping columns are sunken inwards to form clamping grooves, and the clamping grooves are used for allowing connecting edges on the end sides of every two adjacent module units to be connected in an inserted mode at the same time; a plurality of transition grooves are further formed in the middle of each clamping groove in a penetrating mode, the transition grooves communicate with the clamping grooves, and the transition grooves are used for allowing bolts connecting every two adjacent module units to penetrate through. The installation stability of the steel formwork can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction templates, and in particular relates to a fan foundation template and a fixing device thereof. Background Art

[0002] At present, the installation of wind turbine foundation templates is to customize the steel template according to the size of the wind turbine foundation. After being transported to the construction site, the steel template is hoisted and formed by bolt connection. It is finally formed into a cylindrical shape according to the customized size. Then two to three steel ropes are used to cover the circular steel template, and the circular template is locked with a hand hoist.

[0003] Due to the large amount of concrete used in the pouring process of the wind turbine foundation, the stress applied to the enclosed steel formwork is relatively large. The stress points between the steel formwork are concentrated at the bolt connections. During the pouring process, the steel wire rope is unevenly stressed and prone to sliding, resulting in uneven stress on the formwork, which in turn causes deformation, leakage, and even explosion of the steel formwork connections, affecting the molding quality of the wind turbine foundation. Utility Model Content

[0004] The utility model provides a fan foundation template and a fixing device thereof, so as to solve the problem that the steel template connection is easy to deform and burst during the fan foundation pouring process.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] On the one hand, the present application provides a wind turbine foundation template, including a steel template, wherein the steel template includes a plurality of module units spliced together, and both end sides of each module unit protrude outward to form connecting edges.

[0007] Furthermore, the outer surface of the module unit is horizontally provided with reinforcing ribs along the circumferential direction. After the steel templates are spliced, any two adjacent reinforcing ribs are spliced.

[0008] Furthermore, the thickness of the connecting edge gradually decreases in a direction away from the module unit.

[0009] On the other hand, the present application provides a wind turbine foundation template fixing device, comprising a plurality of clamping columns arranged at intervals around the above-mentioned steel template, wherein the side walls of the clamping columns are recessed inward to form a clamping groove, and the clamping groove is used for simultaneously inserting the connecting edges of the end sides of two adjacent module units;

[0010] The middle of the clamping groove is further provided with a plurality of transition grooves which are communicated with the clamping groove and are used for allowing bolts connecting two adjacent module units to pass through.

[0011] Furthermore, a plurality of wing plate groups are arranged at intervals along the length direction of the clamping column, and each wing plate group includes a pair of wing plates symmetrically arranged on both sides of the clamping column. The wing plates are arc-shaped and the curvature of the wing plates fits the side walls of the module unit.

[0012] Furthermore, the side wall of the wing plate away from the module unit is recessed to form an arcuate groove, and the side wall of the clamping column away from the module unit is recessed to form a belly groove, and both ends of the belly groove are respectively connected to the arcuate grooves on both sides.

[0013] Furthermore, a mounting groove for the reinforcing rib on the module unit to pass through is provided on a side of the clamping column close to the module unit.

[0014] Furthermore, the wing plate group is provided with at least three rows.

[0015] Furthermore, the width of the clamping groove gradually decreases towards the interior of the clamping column.

[0016] The utility model can achieve the following beneficial effects:

[0017] 1. This application installs a clamping plate at the joint of two adjacent modular units to change the connection seam between the two adjacent modular units from a point connection of bolts to a surface connection of the clamping plate, thereby improving the connection strength between the two adjacent modular units and reducing the occurrence of leakage or deformation at the joint of the two adjacent modular units, thereby ensuring the casting quality of the wind turbine concrete foundation.

[0018] 2. Wing plates are fixed on both sides of the clamping plate, which can increase the contact area between the clamping plate and the module unit and improve the clamping effect of the clamping plate on the module unit; at the same time, arc-shaped grooves are opened on the surface of the wing plate, so that when the wire rope is installed in the arc-shaped groove, the limiting area of the wire rope is increased, reducing the occurrence of wire rope sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a structural diagram of a fan foundation template of the utility model;

[0021] Figure 2 This is a structural diagram of a fan foundation template fixing device of the utility model;

[0022] Figure 3 This is a structural diagram of a fan foundation template fixing device installed on a steel template according to the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model after the steel wire rope is tied.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Steel formwork; 11. Module unit; 12. Connecting edge; 13. Reinforcement rib; 2. Clamping column; 21. Clamping groove; 22. Transition groove; 23. Belly groove; 24. Installation groove; 3. Wing plate; 31. Arc channel; 4. Wire rope. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0027] like Figures 1 to 4 As shown, a wind turbine foundation template includes a steel template 1. In the embodiment of the present application, the steel template 1 is cylindrical and includes multiple modular units 11 that are spliced together. Both ends of each modular unit 11 protrude outward to form connecting ridges 12. When two adjacent modular units 11 are spliced together, the side walls of the connecting ridges 12 abut against each other, and multiple bolts are spaced apart between the abutting connecting ridges 12 to connect the two adjacent modular units 11.

[0028] A wind turbine foundation template fixing device includes multiple clamping columns 2, which are arranged around the outer periphery of a steel template 1, and each clamping column 2 is installed between two adjacent module units 11; one side of the clamping column 2 is recessed inward to form a clamping groove 21, and when the clamping column 2 is installed on the module unit 11, the connecting edges 12 of the two adjacent module units 11 that are in contact with each other are all inserted into the clamping groove 21.

[0029] Among them, the thickness of the connecting rib 12 gradually decreases in the direction away from the module unit 11, and the width of the clamping groove 21 gradually decreases in the direction close to the inside of the clamping column 2, so that the side wall of the connecting rib 12 fits with the side wall of the clamping groove 21, and the connection between the connecting rib 12 and the surface of the module unit 11 has a strong ability to resist bending moments.

[0030] Each clamping column 2 is fixed with multiple wing plate groups at intervals along its length. The wing plate groups include a pair of wing plates 3 symmetrically arranged on either side of the clamping column 2. The wing plates 3 are generally arc-shaped, and when the clamping column 2 is installed on the steel formwork 1, the curved surfaces of the wing plates 3 conform to the side walls of the steel formwork 1. At least three wing plate groups are arranged along the height of the steel formwork 1, with one wing plate group 3 arranged in the middle of the steel formwork 1 and the other two wing plate groups located near the top and bottom of the steel formwork 1, respectively. The provision of the wing plate groups increases the conforming area between the clamping column 2 and the module unit 11, thereby increasing the connection strength between the clamping column 2 and the module unit 11.

[0031] The clamping column 2 also has multiple transition grooves 22 extending through it, communicating with the clamping grooves 21. These grooves 22 are used to pass bolts connecting two adjacent modular units 11. Furthermore, the clamping column 2 has mounting grooves 24 extending inwardly on the side adjacent to the modular units 11. Each modular unit 11 has reinforcing ribs 13 arranged horizontally along its circumferential outer surface. When the clamping column 2 is mounted on the modular unit 11, the ribs 13 pass through the mounting grooves 24, minimizing interference between the ribs 13 and the clamping column 2 during installation.

[0032] Furthermore, the side wall of the wing plate 3 away from the module unit 11 is recessed to form an arcuate groove 31, and the side wall of the clamping column 2 away from the module unit 11 is recessed to form a belly groove 23. When the clamping column 2 is installed on the module unit 11, the two ends of the belly groove 23 are respectively connected to the arcuate groove 31 on both sides. After the steel template 1 is assembled and the clamping column 2 is installed on two adjacent module units 11, multiple turns of wire rope 4 are arranged around the outer periphery of the steel template 1. The wire rope 4 is sequentially wrapped around the wing plate 3 from the bottom end of the steel template 1. The wire rope 4 is located in the arcuate groove 31 and the belly groove 23. A hand chain hoist is used to connect the two ends of the wire rope 4. The hand chain hoist is tightened. After the wire rope 4 is subjected to force, the clamping column 2 is tightened, and the clamping column 2 moves toward the steel template 1, thereby further pressing the connecting edge 12 against the side wall of the clamping groove 21, thereby improving the connection strength of the two adjacent module units 11. The provision of the arc-shaped groove 31 and the web groove 23 can limit the steel wire rope 4 from sliding along the surface of the module unit 11 , thereby achieving a stable arrangement of the steel wire rope 4 .

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fan foundation template, characterized by: The steel template (1) comprises a plurality of modular units (11) connected to each other, and both ends of each modular unit (11) protrude outward to form connecting edges (12); The thickness of the connecting edge (12) gradually decreases in a direction away from the module unit (11).

2. A fan foundation template according to claim 1, characterized in that: The outer surface of the module unit (11) is provided with reinforcing ribs (13) horizontally along the circumferential direction. After the steel templates (1) are spliced, any two adjacent reinforcing ribs (13) are spliced.

3. A fan foundation template fixing device, characterized by: It comprises a plurality of clamping columns (2) arranged at intervals around the steel template (1) as claimed in claim 2, wherein the side walls of the clamping columns (2) are recessed inward to form a clamping groove (21), and the clamping groove (21) is used for simultaneously plugging the connecting edges (12) on the end sides of two adjacent module units (11); The middle of the clamping groove (21) is also provided with a plurality of transition grooves (22), the transition grooves (22) being in communication with the clamping groove (21), and the transition grooves (22) are used for allowing bolts connecting two adjacent module units (11) to pass through.

4. A wind turbine foundation template fixing device according to claim 3, characterized in that: A plurality of wing plate groups are arranged at intervals along the length direction of the clamping column (2), and each wing plate group comprises a pair of wing plates (3) symmetrically arranged on both sides of the clamping column (2), the wing plates (3) are arc-shaped, and the curvature of the wing plates (3) is in contact with the side wall of the module unit (11).

5. A wind turbine foundation template fixing device according to claim 4, characterized in that: The side wall of the wing plate (3) away from the module unit (11) is recessed to form an arc-shaped groove (31), and the side wall of the clamping column (2) away from the module unit (11) is recessed to form a belly groove (23), and the two ends of the belly groove (23) are respectively connected to the arc-shaped groove (31) on both sides.

6. A wind turbine foundation template fixing device according to claim 3, characterized in that: A mounting groove (24) for the reinforcing rib (13) on the module unit (11) to pass through is provided on a side of the clamping column (2) close to the module unit (11).

7. A wind turbine foundation template fixing device according to claim 4, characterized in that: The wing plate (3) group is provided with at least three rows.

8. A wind turbine foundation template fixing device according to claim 3, characterized in that: The width of the clamping groove (21) gradually decreases towards the interior of the clamping column (2).

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