Foundation bolt protective cap for transformer substation

By designing protective caps for anchor bolts in substations, the corrosion problem of anchor bolts in the external environment is solved by using threaded connections and a multi-layer waterproof system, which improves service life and connection reliability and is suitable for substation construction.

CN224229072UActive Publication Date: 2026-05-12赵斌
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
赵斌
Filing Date
2025-06-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing anchor bolts are easily corroded by rainwater, dust and corrosive substances due to long-term exposure to the external environment, resulting in rust and thread damage, which affects service life and connection reliability.

Method used

A protective cap for anchor bolts in substations has been designed, including a base and an adjustment assembly. The anchor bolts are completely enclosed by threaded connections and abutment structures. Combined with the design of sealing rings, drainage grooves and inclined grooves, a multi-layer waterproof system is formed to isolate corrosive substances and drain accumulated water in a timely manner.

Benefits of technology

It effectively prevents bolts from rusting and threads from being damaged, improving service life and connection reliability. It is easy to operate, and the protective cap forms a rigid connection with the bolt, making it difficult to fall off, ensuring safety and stability in humid environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of power construction auxiliary equipment, and provides a foundation bolt protective cap for a transformer substation, which comprises a base, an adjusting assembly arranged at the upper end of the base, and an upper cap body connected through the adjusting assembly arranged at the upper end of the base; through threaded connection of the upper cap body and an abutting structure of the adjusting assembly, the foundation bolt is completely wrapped, rainwater, dust and corrosive substances are effectively isolated, the bolt is prevented from rusting, threads are prevented from being damaged, the service life of the bolt is further prolonged, and the connection reliability of the bolt is further improved; during installation, connection can be completed only by rotating the upper cap body, operation is simple and efficient, the protective cap and the bolt form rigid connection, loss is not prone to occurring, construction site management is convenient, a multi-layer waterproof system is formed through the combined design of the sealing ring, the drainage groove and the inclined groove, the sealing ring prevents water from permeating, the drainage groove discharges accumulated water in time, and the inclined groove guides water flow to be drained outwards. And the waterproof performance of the protective cap is comprehensively improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for power construction, specifically a protective cap for anchor bolts in substations. Background Technology

[0002] Anchor bolts are an indispensable key connector in the field of power construction auxiliary equipment. Especially in the construction of substations, anchor bolts play an important role in fixing large power equipment such as transformers and circuit breakers. With their unique anchoring characteristics, anchor bolts have always played an irreplaceable role in core links such as the precise installation of large equipment and the stabilization of building structure systems. They are a fundamental element to ensure project quality and structural safety.

[0003] However, existing anchor bolts are usually exposed to the external environment for a long time, making them susceptible to corrosion from rain, dust, and corrosive substances, which can lead to bolt rust and thread damage, affecting subsequent installation and use, and reducing the service life and connection reliability of the anchor bolts.

[0004] To address this issue, those skilled in the art have proposed a protective cap for anchor bolts in substations to solve the problems raised in the background art.

[0005] The information disclosed above in this background section is only intended to enhance the understanding of the background section of this utility model, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a protective cap for anchor bolts in substations, thereby solving the problem of reduced service life of anchor bolts due to long-term exposure to the external environment in the prior art.

[0007] To achieve the above objectives, this utility model provides a protective cap for anchor bolts in substations, including a base:

[0008] An adjustment component is provided at the upper end of the base, and an upper cap body is provided at the upper end of the base via the adjustment component. A threaded groove is provided on the side wall at the port of the upper cap body.

[0009] The adjustment assembly includes a fixed cylinder fixedly connected to the upper end of the base. Four first connecting plates are evenly fixedly connected to the upper end of the fixed cylinder. A connecting cylinder is movably sleeved on the outer wall of the fixed cylinder. Four second connecting plates are evenly fixedly connected to the inner wall of the upper end of the connecting cylinder. Abutment posts are fixedly connected to the second connecting plates, the first connecting plates, and the inner wall of the fixed cylinder.

[0010] Preferably, the upper end of the connecting cylinder is provided with a rotating groove, the inner wall of the rotating groove is slidably connected with a rotating ring, the upper end of the rotating ring is fixedly connected to the upper cap body, and the side wall of the upper end of the connecting cylinder is evenly provided with multiple drainage grooves, which are connected to the rotating groove.

[0011] Preferably, the upper end of the connecting cylinder is provided with an installation groove, and a sealing ring is provided on the inner wall of the installation groove.

[0012] Preferably, a limiting ring is fixedly connected to the outer wall of the upper end of the fixed cylinder, and a sliding groove is provided on the inner wall of the connecting cylinder, with the limiting ring slidably connected to the inner wall of the sliding groove.

[0013] Preferably, the lower end of the connecting cylinder is provided with an inclined groove.

[0014] Preferably, the upper end of the connecting cylinder is provided with a through hole, and the lower end of the through hole is provided with a rounded corner.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model completely encloses the anchor bolts through the threaded connection of the upper cap and the abutment structure of the adjustment component, effectively isolating them from rainwater, dust, and corrosive substances, preventing the bolts from rusting and the threads from being damaged, and further improving the service life and connection reliability of the bolts. Secondly, the upper cap and the bolt are fixed by threads, and the connection can be completed by simply rotating the upper cap during installation. The operation is simple and efficient, and the protective cap and the bolt form a rigid connection, which is not easy to fall off or be lost, and facilitates on-site management.

[0017] 2. This utility model forms a multi-layer waterproof system through the combined design of a sealing ring, a drainage groove, and an inclined groove. The sealing ring prevents water from seeping in, the drainage groove drains accumulated water in time, and the inclined groove guides water flow outward, comprehensively improving the waterproof performance of the protective cap and ensuring the safety of the bolts in a humid environment. Furthermore, the cooperation between the limiting ring and the sliding groove, and the sliding connection between the rotating ring and the rotating groove, ensure that the adjustment component is stable and reliable during installation. It can not only realize the flexible rotation of the upper cap body, but also ensure that the connecting cylinder moves in a fixed direction, thus improving the stability of the overall structure.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a substation anchor bolt protective cap in an embodiment of this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of a substation anchor bolt protective cap in an embodiment of this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the fixing cylinder in the anchor bolt protection cap for a substation according to an embodiment of the present utility model;

[0022] Figure 4 This is an exploded structural diagram of a substation anchor bolt protective cap connecting cylinder according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of a substation anchor bolt protection cap connecting cylinder in an embodiment of this utility model;

[0024] Figure 6 This is a cross-sectional view of a substation anchor bolt protective cap connecting cylinder according to an embodiment of this utility model.

[0025] In the diagram: 1. Base; 2. Adjustment component; 21. Fixing cylinder; 22. First connecting plate; 23. Connecting cylinder; 231. Through hole; 24. Second connecting plate; 25. Abutment post; 26. Sliding groove; 27. Limiting ring; 28. Rotating groove; 281. Drainage groove; 282. Mounting groove; 29. ​​Inclined groove; 3. Upper cap body; 31. Rotating ring; 32. Sealing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. It should be noted that the drawings are schematic and not illustrated to scale. For clarity and convenience, the relative sizes and proportions of the parts shown in the drawings have been exaggerated or reduced in size. Any size is only illustrative and not limiting.

[0027] Example 1:

[0028] Please see Figure 1 - Figure 6 As shown, a protective cap for anchor bolts in a substation includes a base 1:

[0029] An adjustment component 2 is provided on the upper end of the base 1, and an upper cap 3 is provided on the upper end of the base 1 through the adjustment component 2. A threaded groove is provided on the side wall at the port of the upper cap 3.

[0030] The adjusting assembly 2 includes a fixed cylinder 21 fixedly connected to the upper end of the base 1. Four first connecting plates 22 are evenly fixedly connected to the upper end of the fixed cylinder 21. A connecting cylinder 23 is movably sleeved on the outer wall of the fixed cylinder 21. Four second connecting plates 24 are evenly fixedly connected to the inner wall of the upper end of the connecting cylinder 23. Abutment posts 25 are fixedly connected to the second connecting plates 24, the first connecting plates 22 and the inner wall of the fixed cylinder 21.

[0031] As can be seen from the above, when the adjusting component 2 of the base 1 is fitted onto the anchor bolt, the fixing cylinder 21 and the connecting cylinder 23 surround the bolt, so that the abutting post 25 located on the inner wall of the first connecting plate 22, the second connecting plate 24 and the fixing cylinder 21 abuts against the nut of the bolt, forming an initial positioning. When the upper cap 3 is rotated, the threaded groove at its port engages with the external thread on the top of the bolt, and the upper cap 3 is tightened and fixed through the threaded connection, thus making it less likely to fall off or be lost. Through the threaded connection of the upper cap 3 and the abutting structure of the adjusting component 2, the anchor bolt is completely wrapped, effectively isolating rainwater, dust and corrosive substances, preventing the bolt from rusting and the thread from being damaged, and significantly improving the service life of the bolt and the reliability of the connection.

[0032] Example 2:

[0033] This embodiment is basically the same as the previous embodiment, except that a rotating groove 28 is provided at the upper end of the connecting cylinder 23, a rotating ring 31 is slidably connected to the inner wall of the rotating groove 28, the upper end of the rotating ring 31 is fixedly connected to the upper cap body 3, and a plurality of drainage grooves 281 are evenly provided on the side wall of the upper end of the connecting cylinder 23, and the drainage grooves 281 and the rotating groove 28 are connected.

[0034] The upper end of the connecting cylinder 23 is provided with an installation groove 282, and a sealing ring 32 is provided on the inner wall of the installation groove 282 to increase the sealing performance and prevent water from entering the upper cap body 3.

[0035] A limiting ring 27 is fixedly connected to the outer wall of the upper end of the fixed cylinder 21. A sliding groove 26 is provided on the inner wall of the connecting cylinder 23. The limiting ring 27 is slidably connected to the inner wall of the sliding groove 26. The connecting cylinder 23 is slidably connected to the limiting ring 27 on the outer side of the fixed cylinder 21 through the sliding groove 26, which limits the axial movement range of the connecting cylinder 23 and prevents it from separating from the fixed cylinder 21.

[0036] The lower end of the connecting cylinder 23 is provided with an inclined groove 29. The inclined groove 29 at the lower end of the connecting cylinder 23 is inclined to guide the external water flow to flow outward along the inclined groove 29, reducing the possibility of water flowing from the outer wall of the connecting cylinder 23 into the inner wall.

[0037] The upper end of the connecting cylinder 23 is provided with a through hole 231, and the lower end of the through hole 231 is provided with a rounded corner to increase the smoothness of the connection and avoid jamming.

[0038] As can be seen from the above, the rotating ring 31 at the bottom of the upper cap 3 is embedded in the rotating groove 28 of the connecting cylinder 23. When the upper cap 3 is rotated, the rotating ring 31 slides in the rotating groove 28, so that the upper cap 3 only rotates around the bolt axis and does not drive the connecting cylinder 23 to rotate, ensuring that the connecting cylinder 23 moves smoothly downward along the axial direction. A sealing ring 32 is set in the mounting groove 282 at the upper end of the connecting cylinder 23, which fits tightly with the bottom of the upper cap 3 to form a sealing structure, preventing external moisture from seeping in from the connection. The drainage groove 281 on the side wall of the rotating groove 28 is connected to the outside. If water enters the rotating groove 28, it can be discharged in time through the drainage groove 281 to avoid water accumulation and corrosion of the bolt. The combined design of the sealing ring 32, the drainage groove 281 and the inclined groove 29 forms a multi-layer waterproof system. The sealing ring 32 prevents water from seeping in, the drainage groove 281 discharges water in time, and the inclined groove 29 guides the water flow outward, comprehensively improving the waterproof performance of the protective cap and ensuring the safety of the bolt in a humid environment.

[0039] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. Electrofusion connections also employ conventional connection methods in the prior art, and will not be detailed here. All content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0040] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective cap for anchor bolts in a substation, comprising a base (1), characterized in that: An adjustment component (2) is provided on the upper end of the base (1), and an upper cap body (3) is provided on the upper end of the base (1) and connected by the adjustment component (2). A threaded groove is provided on the side wall at the port of the upper cap body (3). The adjustment assembly (2) includes a fixed cylinder (21) fixedly connected to the upper end of the base (1). Four first connecting plates (22) are evenly fixedly connected to the upper end of the fixed cylinder (21). A connecting cylinder (23) is movably sleeved on the outer wall of the fixed cylinder (21). Four second connecting plates (24) are evenly fixedly connected to the inner wall of the upper end of the connecting cylinder (23). Abutment posts (25) are fixedly connected to the inner walls of the second connecting plates (24), the first connecting plates (22), and the fixed cylinder (21).

2. The substation anchor bolt protective cap according to claim 1, characterized in that: The upper end of the connecting cylinder (23) is provided with a rotating groove (28), and a rotating ring (31) is slidably connected to the inner wall of the rotating groove (28). The upper end of the rotating ring (31) is fixedly connected to the upper cap body (3). Multiple drainage grooves (281) are evenly provided on the side wall of the upper end of the connecting cylinder (23), and the drainage grooves (281) and the rotating grooves (28) are connected.

3. The substation anchor bolt protective cap according to claim 1, characterized in that: The upper end of the connecting cylinder (23) is provided with an installation groove (282), and a sealing ring (32) is provided on the inner wall of the installation groove (282).

4. The substation anchor bolt protective cap according to claim 1, characterized in that: A limiting ring (27) is fixedly connected to the outer wall of the upper end of the fixed cylinder (21), and a sliding groove (26) is provided on the inner wall of the connecting cylinder (23). The limiting ring (27) is slidably connected to the inner wall of the sliding groove (26).

5. A protective cap for anchor bolts in a substation according to claim 1, characterized in that: The lower end of the connecting cylinder (23) is provided with an inclined groove (29).

6. A protective cap for anchor bolts in a substation according to claim 1, characterized in that: The upper end of the connecting cylinder (23) is provided with a through hole (231), and the lower end of the through hole (231) is provided with a rounded corner.