Extrusion anchorage device and system for wind power mixed tower

By adopting a sealed compression anchor system in the wind turbine hybrid tower anchors, the problem of anchor corrosion was solved, structural protection was achieved, and service life was extended.

CN223838114UActive Publication Date: 2026-01-27TIANJIN YINLONG ENGINEERING TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202520059378.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-27
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing wind turbine tower anchors are prone to corrosion in long-term outdoor environments, affecting their service life.

Method used

A sealed compression anchor system is adopted, including an anchor plate, a load-bearing body, a sealing block, a sealing gasket, a protective cover, and sealing materials, forming a closed space to isolate external water and air and protect the anchor structure.

Benefits of technology

It effectively slows down anchor corrosion and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an extrusion anchorage device and system for wind power mixed tower, including anchor plate and bearing body, the bearing body is hollow column shape with centre hole, the anchor plate is located the top of bearing body, the anchor hole on the anchor plate is located above the centre hole and is not shielded by the bearing body, the anchor hole on the bearing body is located above the centre hole, and the anchor plate is located above the centre hole and is not shielded by the bearing body. The sealing pressing block is located in the center hole and fixed to the bottom of the anchor plate, and a sealing gasket is arranged between the sealing pressing block and the anchor plate; a clamping piece is arranged in the anchor hole; the device further comprises a protective cover body, and the protective cover body covers the anchor plate and the bearing body. The protective cover has the advantages that all structures of the anchorage device are sealed in the protective cover body, external water and air can be isolated, corrosion is effectively relieved, and the service life is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of anchoring, and in particular relates to an extrusion anchor and system for wind power hybrid towers. Background Technology

[0002] As an innovative technology in the wind power industry, the core of the hybrid wind turbine tower lies in the ingenious integration of steel and concrete structures to form a unique composite tower structure. This design not only improves the safety performance of wind turbine units but also significantly reduces costs and optimizes the overall design. The hybrid wind turbine tower mainly consists of three parts: the tower body, the tower frame, and the foundation. The tower body is mostly made of prestressed concrete or reinforced concrete, while the tower frame uses a steel structure to ensure structural strength and stability. The prestressed concrete portion requires anchorage for tensioning and anchoring. Since most anchorages are made of metal, they are susceptible to corrosion in long-term outdoor working environments. This necessitates improvements and upgrades to the existing structure to effectively mitigate corrosion and extend its service life. Summary of the Invention

[0003] In view of this, the present invention aims to provide an extrusion anchor and system for wind power hybrid towers.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] An extrusion anchor for a wind power hybrid tower includes an anchor plate and a support body. The support body is a hollow column with a central hole. The anchor plate is located on top of the support body. The anchor hole on the anchor plate is located above the central hole and is not obstructed by the support body. The sealing block is located inside the central hole and is fixed to the bottom of the anchor plate. A sealing gasket is provided between the sealing block and the anchor plate.

[0006] A clamping piece is provided inside the anchor hole;

[0007] It also includes a protective cover that covers both the anchor plate and the load-bearing body.

[0008] Furthermore, the anchor plate has a circular structure, and the anchor plate is provided with a plurality of frustum-shaped anchor holes with larger outer sides and smaller inner sides, and the anchor holes are provided with clips corresponding to the shape of the anchor holes;

[0009] The carrier is a ring structure composed of two semi-circular rings.

[0010] Furthermore, the size of the sealing block and the sealing gasket is the same as the size of the central hole;

[0011] The sealing block and the sealing gasket are respectively provided with a first mounting hole and a second mounting hole corresponding to the position of the anchor hole.

[0012] Furthermore, the protective cover is provided with an injection hole and an exhaust hole, and the injection hole and exhaust hole are provided with removable sealing screws or sealing plugs.

[0013] Furthermore, the protective cover is coated with an anti-corrosion layer.

[0014] A wind turbine hybrid tower extrusion anchor system includes the aforementioned wind turbine hybrid tower extrusion anchor, steel strand, and bearing foundation. The bearing body is placed above the mounting hole of the bearing foundation, and the anchor plate is placed above the bearing body. The end of the steel strand passes through the mounting hole of the bearing foundation, the center hole of the bearing body, the first mounting hole of the sealing block, the second mounting hole of the sealing gasket, the anchor hole of the anchor plate, and the clamping plate from bottom to top.

[0015] The opening of the protective cover covers the mounting hole of the bearing base and fits against the upper surface of the bearing base to form a sealed space;

[0016] The cavity of the protective cover is filled with sealing material.

[0017] Furthermore, the steel strand is covered with a sealing film, which fits against the first mounting hole of the sealing block, the second mounting hole of the sealing gasket, and the anchor hole of the anchor plate to form a surface sealing fit.

[0018] Furthermore, the portion of the steel strand that contacts the clamp does not have a sealing film.

[0019] Furthermore, a sealing strip is provided between the outer edge of the protective cover and the supporting base, and the protective cover is fixed to the supporting base by bolts.

[0020] Furthermore, the protective cover is a shell with an opening at one end and a cavity;

[0021] The sealing material includes anti-corrosion grease or cement mortar;

[0022] The sealing film is made of high-density polyethylene (HDPE).

[0023] The advantages and positive effects of this utility model are: by adopting the above technical solution, all the structures of the anchor are sealed in the protective cover, which can isolate external water and air, effectively slow down corrosion and extend service life. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of the extrusion anchor system for wind power hybrid towers in this utility model.

[0026] In the picture:

[0027] 1. Anchor plate 2. Bearing body 3. Sealing block 4. Sealing gasket

[0028] 5. Clamping plate; 6. Protective cover; 7. Injection hole; 8. Vent hole

[0029] 9. Steel strand; 10. Steel transition section; 11. Sealing material. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the structure of the device will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and height should be included.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figure 1 As shown, this utility model is an extrusion anchor for wind power hybrid towers, including an anchor plate 1 and a ring-shaped support body 2. The support body 2 is a hollow column with a central hole. The anchor plate 1 is located at the top of the support body 2. The anchor hole on the anchor plate 1 is located above the central hole and is not blocked by the support body 2. The sealing block 3 is located in the central hole and is fixed at the bottom of the anchor plate 1. A sealing gasket 4 is provided between the sealing block 3 and the anchor plate 1.

[0036] The anchor plate 1 has a circular structure and is provided with a number of frustum-shaped anchor holes with larger outer sides and smaller inner sides. The anchor holes are provided with clips 5 that correspond to the shape of the anchor holes.

[0037] A protective cover 6 with an opening at one end and a cavity covers both the anchor plate 1 and the bearing body 2.

[0038] A wind turbine hybrid tower extrusion anchor system includes the aforementioned wind turbine hybrid tower extrusion anchor, steel strand 9, and steel transition section (bearing foundation) 10. The bearing body 2 is placed above the mounting hole of the steel transition section 10, and the anchor plate 1 is placed above the bearing body 2. The end of the steel strand 9 passes through the mounting hole of the steel transition section 10, the center hole of the bearing body 2, the first mounting hole of the sealing block 3, the second mounting hole of the sealing gasket 4, the anchor hole of the anchor plate 1, and the clamping piece from bottom to top. The wedge-shaped structure between the clamping piece 5 and the anchor hole allows the clamping piece 5 to firmly clamp the end of the steel strand 9, making it stuck in the anchor hole.

[0039] The opening of the protective cover 6 covers the mounting hole of the steel transition section 10. A sealing strip is provided between the outer edge of the protective cover 6 and the steel transition section 10. The protective cover 6 is fixed to the steel transition section 10 by bolts, fitting against the upper surface of the steel transition section 10 to form a sealed space, covering the ends of the extrusion anchor and steel strand of the wind power hybrid tower in the sealed space.

[0040] The cavity of the protective cover 6 is filled with sealing material 11. The sealing material 11 is injected through the injection hole 7 of the protective cover, and the air in the cavity of the protective cover is discharged through the exhaust hole 8. The installation is completed when the sealing material 11 solidifies.

[0041] The steel strand 9 is covered with a sealing film, which fits against the first mounting hole of the sealing block 3, the second mounting hole of the sealing gasket 4, and the anchor hole of the anchor plate 1, forming a surface seal fit. The portion of the steel strand 9 that contacts the clamping piece 5 does not have a sealing film; the end is exposed, increasing friction and the clamping force of the clamping piece 5.

[0042] The sealing block 3 and sealing gasket 4 are the same size as the central hole, which can seal the central hole. The protective cover 6 is coated with an anti-corrosion layer to extend its service life.

[0043] Finally, this invention seals all the structures of the anchor and the ends of the steel strands within the protective cover 6, which can isolate external water and air, effectively slow down corrosion, and extend service life.

[0044] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A compression anchor for a wind turbine hybrid tower, characterized in that: It includes an anchor plate and a carrier body. The carrier body is a hollow cylinder with a central hole. The anchor plate is located on top of the carrier body. The anchor hole on the anchor plate is located above the central hole and is not blocked by the carrier body. The sealing block is located inside the central hole and is fixed to the bottom of the anchor plate. A sealing gasket is provided between the sealing block and the anchor plate. A clamping piece is provided inside the anchor hole; It also includes a protective cover that covers both the anchor plate and the load-bearing body.

2. The extrusion anchor for wind power hybrid towers according to claim 1, characterized in that: The anchor plate has a circular structure and is provided with several frustum-shaped anchor holes that are larger on the outside and smaller on the inside. The anchor holes are provided with clips that correspond to the shape of the anchor holes. The carrier is a ring structure composed of two semi-circular rings.

3. The extrusion anchor for wind power hybrid towers according to claim 1 or 2, characterized in that: The size of the sealing block and the sealing gasket is the same as the size of the central hole; The sealing block and the sealing gasket are respectively provided with a first mounting hole and a second mounting hole corresponding to the position of the anchor hole.

4. The extrusion anchor for wind power hybrid towers according to claim 1 or 2, characterized in that: The protective cover is provided with an injection hole and an exhaust hole, and the injection hole and the exhaust hole are provided with sealing screws or sealing bolts.

5. The extrusion anchor for wind power hybrid towers according to claim 1 or 2, characterized in that: The protective cover is coated with an anti-corrosion layer.

6. A compression anchor system for wind turbine hybrid towers, characterized in that: It includes an extruded anchor for a wind power hybrid tower, steel strands and a bearing foundation. The bearing body is placed above the mounting hole of the bearing foundation, and the anchor plate is placed above the bearing body. The end of the steel strand passes through the mounting hole of the bearing foundation, the center hole of the bearing body, the first mounting hole of the sealing block, the second mounting hole of the sealing gasket, the anchor hole of the anchor plate and the clamping plate from bottom to top. The opening of the protective cover covers the mounting hole of the bearing base and fits against the upper surface of the bearing base to form a sealed space; The cavity of the protective cover is filled with sealing material.

7. The extrusion anchor system for wind power hybrid towers according to claim 6, characterized in that: The steel strand is covered with a sealing film, which fits into the first mounting hole of the sealing block, the second mounting hole of the sealing gasket, and the anchor hole of the anchor plate to form a surface sealing fit.

8. The extrusion anchor system for wind power hybrid towers according to claim 7, characterized in that: The part of the steel strand that contacts the clamp does not have a sealing film.

9. The extrusion anchor system for wind power hybrid towers according to claim 6, characterized in that: A sealing strip is provided between the outer edge of the protective cover and the supporting base, and the protective cover is fixed to the supporting base by bolts.

10. The extrusion anchor system for wind power hybrid towers according to claim 7, characterized in that: The protective cover is a shell with an opening at one end and a cavity; The sealing material includes anti-corrosion grease or cement mortar; The sealing film is made of high-density polyethylene.