Environment-friendly high-strength bolt for wind power

Abstract

The utility model relates to the technical field of fasteners, in particular to an environment-friendly high-strength bolt for wind power, which comprises a screw and an end, one end of the screw is provided with the end, the end is further provided with a protective part, the protective part comprises an elastic part, a cover body and a sealing ring, the cover body is provided with a containing groove matched with the end, and the sealing ring is arranged in the containing groove. The two ends of the elastic piece are connected with the inner wall and the end of the containing groove correspondingly, and a sealing ring is further arranged at the end, close to the screw, of the cover body. The cover body is further provided with a driving assembly. The protection problem of an existing bolt is effectively solved through the design of the protection piece. The cover body is connected with the end head through the elastic piece, in the non-rotating state, the cover body can tightly cover the end head under the action of the elastic piece, the sealing ring arranged at the end, close to the screw rod, of the cover body can effectively prevent external erosion, the situation that the joint of the bolt and equipment is eroded after an anti-corrosion coating is damaged due to friction is avoided, and the service life of the bolt is prolonged; and through the design of the driving assembly, the bolt rotation operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to an environmentally friendly high-strength bolt for wind power. Background Technology

[0002] Environmentally friendly high-strength bolts for wind power: They use machine-coated or silicate-coated materials to replace the chromium-containing passivation layer of traditional bolts, which can ensure the corrosion resistance of the bolts and avoid chromium pollution.

[0003] Existing wind turbine bolts require specific tools to turn, and the anti-corrosion coating at the connection between the bolts and the equipment is often damaged due to friction. In outdoor environments, this area is more susceptible to corrosion and lacks protective devices. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an environmentally friendly high-strength bolt for wind power applications.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly high-strength bolt for wind power, comprising a screw and an end head, wherein the end head is provided at one end of the screw, and a protective component is also provided on the end head, wherein the protective component comprises an elastic element, a cover and a sealing ring, wherein a receiving groove adapted to the end head is provided on the cover, and both ends of the elastic element are respectively connected to the inner wall of the receiving groove and the end head, and a sealing ring is also provided on the end of the cover near the screw;

[0008] The cover is also equipped with a drive component.

[0009] To facilitate the rotation of the end head, the present invention is improved in that the driving assembly includes a driving ring and a reinforcing rib. The driving ring is C-shaped, and the two free ends of the driving ring are connected to the cover. The cover is also provided with a reinforcing rib connected to the free ends of the driving ring.

[0010] To ensure the stable rotation of the end head driven by the cover, the present invention is improved by providing a plug block on the inner wall of the cover that is inserted into the end head, and the plug block is arranged in several groups evenly.

[0011] Preferably, the elastic element includes a spring and a telescopic rod, the spring is sleeved on the telescopic rod, and both ends of the spring and the telescopic rod are respectively connected to the end head and the cover.

[0012] Preferably, a washer is also provided at the end of the end near the screw.

[0013] Preferably, a retaining ring is provided at one end of the cover near the screw, and a retaining groove is provided on the sealing ring to engage with the retaining ring.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an environmentally friendly high-strength bolt for wind power, which has the following beneficial effects:

[0016] This environmentally friendly high-strength wind turbine bolt features a protective component design that effectively solves the protection problems of existing bolts. The cover is connected to the end via an elastic element. In a non-rotating state, the cover can tightly cover the end under the action of the elastic element. The sealing ring located near the bolt end can effectively prevent external corrosion, avoiding corrosion at the bolt-equipment connection point after the anti-corrosion coating is damaged by friction, thus extending the bolt's service life.

[0017] The design of the drive assembly makes bolt rotation easier. The C-shaped drive ring is easy for operators to hold or operate with tools, while reinforcing ribs enhance the stability of the connection between the drive ring and the cover, ensuring that the drive ring is not easily detached or damaged during operation. Compared to traditional bolts that require specific tools to rotate, it has a wider range of applications and is more flexible in operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is an exploded view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-section of the bolt behind the pull drive ring of this utility model.

[0022] In the diagram: 1. Screw; 2. End; 3. Cover; 4. Sealing ring; 5. Drive ring; 6. Reinforcing rib; 7. Insert block; 8. Spring; 9. Telescopic rod; 10. Washer; 11. Snap ring. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] Please see Figures 1-4An environmentally friendly high-strength bolt for wind power includes a screw 1 and an end 2. The end 2 is provided at one end of the screw 1. A protective component is also provided on the end 2. The protective component includes an elastic element, a cover 3 and a sealing ring 4. The cover 3 is provided with a storage groove that is adapted to the end 2. The two ends of the elastic element are respectively connected to the inner wall of the storage groove and the end 2. The sealing ring 4 is also provided at the end of the cover 3 near the screw 1.

[0025] Under normal operating conditions, the protective components play a crucial role. The elastic element connects the inner wall of the receiving groove of the cover 3 to the end 2, with an internal spring 8 providing elasticity and a telescopic rod 9 ensuring stability during extension and retraction. Under the action of the elastic element, the cover 3 tightly covers the end 2, isolating it from the external environment. The sealing ring 4, located near the screw 1, fits snugly against the equipment surface, further preventing external moisture, dust, and other corrosive substances from contacting the bolt-equipment connection. When friction damages the anti-corrosion coating at the bolt-equipment connection, the protective structure formed by the sealing ring 4 and the cover 3 effectively reduces external erosion, thereby extending the bolt's service life.

[0026] When the bolt needs to be turned, the drive assembly comes into play. The C-shaped drive ring 5 is easy for the operator to hold directly by hand, or can be operated with common tools. The two free ends of the drive ring 5 are connected to the cover 3, and the reinforcing ribs 6 on the cover 3 enhance the stability of the connection between the drive ring 5 and the cover 3. When the drive ring 5 is rotated, the drive ring 5 drives the cover 3 to rotate together. Since the inner wall of the cover 3 is provided with several sets of evenly arranged inserts 7, which are inserted into the end 2, the rotation of the cover 3 can stably drive the end 2 to rotate, thereby realizing the tightening or loosening of the bolt. Compared with traditional bolts that require specific tools to turn, this design reduces the difficulty of operation and broadens the application scenarios.

[0027] It should be noted that initially, the elastic element is in a naturally contracted state, and end 2 is in stable contact with the fixed object. It is necessary to pull the drive ring 5 to move away from the screw 1, and at the same time rotate the drive ring 5 until end 2 is in stable contact with the object. Then, the pull ring is sent. Under the left and right sides of the elastic element, the sealing ring 4 stably abuts against the object, which plays a protective role. When the pull ring is pulled, the insert 7 is not completely separated from end 2, ensuring that the end cap stably drives end 2 to move.

[0028] The washer 10, located at the end of end 2 near the screw 1, increases the stability of the connection between the bolt and the equipment during bolt tightening, while also dispersing the pressure of the bolt on the equipment, preventing damage to the connection points due to pressure concentration. The retaining ring 11, located at the end of the cover 3 near the screw 1, engages with the groove on the sealing ring 4. This structure further enhances the connection stability between the sealing ring 4 and the cover 3, allowing the sealing ring 4 to more effectively block external impurities and ensure protective performance.

[0029] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0030] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An environmentally friendly high-strength bolt for wind power, comprising a screw rod (1) and a head (2), the screw rod (1) being provided with the head (2) at one end, characterized in that, The end head (2) is further provided with a protection member, which comprises an elastic member, a cover body (3) and a sealing ring (4), the cover body (3) is provided with a receiving groove matched with the end head (2), the elastic member is connected with the inner wall of the receiving groove and the end head (2) at two ends respectively, and the cover body (3) is further provided with the sealing ring (4) near one end of the screw rod (1). The cover body (3) is further provided with a driving assembly.

2. The environmentally friendly high-strength bolt for wind power according to claim 1, characterized in that, The driving assembly comprises a driving ring (5) and a reinforcing rib (6), the driving ring (5) is C-shaped, two free ends of the driving ring (5) are connected with the cover body (3), and the cover body (3) is further provided with the reinforcing rib (6) connected with the free end of the driving ring (5).

3. The environmentally friendly high-strength bolt for wind power according to claim 2, characterized in that, The inner wall of the cover body (3) is provided with an insertion block (7) inserted with the end head (2), and the insertion block (7) is arranged in several groups uniformly.

4. The environmentally friendly high-strength bolt for wind power according to claim 3, characterized in that, The elastic member comprises a spring (8) and a telescopic rod (9), the spring (8) is sleeved on the telescopic rod (9), and the spring (8) and the telescopic rod (9) are connected with the end head (2) and the cover body (3) at two ends respectively.

5. The environmentally friendly high-strength bolt for wind power according to claim 4, characterized in that, The end head (2) is further provided with a gasket (10) near one end of the screw rod (1).

6. The environmentally friendly high-strength bolt for wind power according to claim 5, characterized in that, The cover body (3) is provided with a clamping ring (11) near one end of the screw rod (1), and the sealing ring (4) is provided with a clamping groove clamped with the clamping ring (11).

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