A kind of power tower for non-detachable anti-theft nut

CN224648930UActive Publication Date: 2026-08-18NANJING LONGYUAN TOWER MANUFACTURING CO LTD
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Patent Information

Application Number
CN202522249400.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-08-18
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0003]传统电力铁塔为了增加安全性会安装防盗螺母,但现有的防盗螺母结构相对简单,在转动安装后仍可以使用专用工具反向螺拧拆卸下来,影响电力铁塔的安全性能,为此,我们提出一种电力铁塔用不可拆卸型防盗螺母用于解决上述问题

Benefits of technology

该防盗螺母方便安装在螺栓上,且能够将填充环定位填充固定在槽体中,并使防盗螺母通过固定胶固定在螺栓上,且使防盗螺母表面形成圆形面结构,有效防止防盗螺母拆离螺栓。

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a non-removable anti-theft nut for power transmission towers, specifically relating to the field of nut structure technology. It includes a central nut with a bottom ring integrally formed at its bottom. An outer protective circular frame is integrally formed at the top of the bottom ring. A groove is formed between the outer side of the central nut and the inner side of the outer protective circular frame. A filling ring is movably engaged in the groove. A glue storage groove is formed at the bottom of the filling ring. An inner ring pad is movably engaged at the bottom of the groove. An inner filling tube is integrally formed at the top of the inner ring pad and is movably engaged in the glue storage groove. A through groove is vertically formed at the bottom of the central nut. This anti-theft nut is conveniently installed on bolts and can position and fix the filling ring in the groove, allowing the anti-theft nut to be fixed to the bolt with adhesive. Furthermore, it forms a circular surface structure on the surface of the anti-theft nut, effectively preventing the anti-theft nut from detaching from the bolt.
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Description

Technical Field

[0001] This utility model relates to the field of nut structure technology, specifically a non-removable anti-theft nut for power transmission towers. Background Technology

[0002] In power transmission systems, power towers serve as the core infrastructure supporting high-voltage transmission lines. Their structural stability is directly related to the safety and continuity of power supply. The main body of the tower is assembled from a large amount of steel connected by bolts and nuts. Among them, the nuts, as key fastening components, must withstand the test of complex outdoor environments for a long time, including wind and rain erosion, temperature changes, vibration and impact, etc., and also face the significant threat of theft.

[0003] Traditional power transmission towers are equipped with anti-theft nuts to increase safety. However, existing anti-theft nuts have a relatively simple structure and can still be removed by reverse unscrewing with special tools after rotation installation, affecting the safety performance of the power transmission tower. To address this issue, we propose a non-removable anti-theft nut for power transmission towers. Utility Model Content

[0004] The purpose of this utility model is to provide a non-removable anti-theft nut for power transmission towers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a non-removable anti-theft nut for power transmission towers, comprising a middle nut, a bottom ring integrally formed at the bottom of the middle nut, an outer protective circular frame integrally formed at the top of the bottom ring, a groove formed between the outer side of the middle nut and the inner side of the outer protective circular frame, a filling ring movably engaged in the groove, a glue storage groove opened at the bottom end of the filling ring, an inner ring pad movably engaged at the bottom of the groove, an inner filling tube integrally formed at the top of the inner ring pad, the inner filling tube movably engaged in the glue storage groove, a through groove vertically opened at the bottom of the middle nut, and the groove, the through groove and the inner side of the middle nut being interconnected; The outer protective circular frame has multiple positioning slots arranged in a ring array. The outer side of the filling ring is integrally formed with positioning protrusions corresponding to the positioning slots, and the positioning protrusions are movably engaged in the corresponding positioning slots.

[0006] Preferably, the outer side of the inner ring pad is provided with a protrusion corresponding to the positioning groove, and the protrusion is movably engaged in the positioning groove.

[0007] Preferably, the outer wall of the outer protective circular frame, the positioning protrusion outer wall, and the protruding outer wall form a circular surface structure.

[0008] Preferably, the anti-theft nut further includes a partition frame, which is movably engaged with the middle of the filling ring. The end of the partition frame away from the glue storage tank is integrally formed with a bottom seal, and the upper surface of the bottom seal is in contact with the end face of the filling ring away from the glue storage tank.

[0009] Preferably, the end of the middle partition frame away from the bottom sealing seat is movably fitted with a sealing cap, which seals the glue storage tank.

[0010] Preferably, the outer side of the cover is integrally formed with multiple disassembly protrusions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This anti-theft nut is easy to install on bolts and can position and fix the filler ring in the groove. The anti-theft nut is then fixed to the bolt with adhesive, and the surface of the anti-theft nut forms a circular structure, effectively preventing the anti-theft nut from being removed from the bolt. Attached Figure Description

[0012] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structural connection after the present invention is disassembled.

[0015] Figure 3 This is a schematic diagram showing the structural connection of the filling ring, the partition frame, and the cap in this utility model.

[0016] Figure 4 This is a schematic diagram showing the structural connection between the filling ring and the partition frame in this utility model.

[0017] In the diagram: 1. Middle nut; 101. Groove; 102. Through groove; 11. Bottom ring; 2. Outer protective round frame; 201. Positioning groove; 3. Filling ring; 31. Positioning protrusion; 301. Glue storage tank; 4. Inner ring gasket; 41. Inner filling tube; 5. Middle partition frame; 51. Bottom seal seat; 6. Cover; 61. Disassembly protrusion. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-4 As shown, this utility model provides a non-removable anti-theft nut for power transmission towers, including a middle nut 1. The bottom of the middle nut 1 is integrally formed with a bottom ring 11, and the top of the bottom ring 11 is integrally formed with an outer protective circular frame 2. A groove 101 is formed between the outer side of the middle nut 1 and the inner side of the outer protective circular frame 2. A filling ring 3 is movably engaged in the groove 101. A glue storage groove 301 is opened at the bottom of the filling ring 3. An inner ring pad 4 is movably engaged at the bottom of the groove 101. An inner filling tube 41 is integrally formed at the top of the inner ring pad 4. The inner filling tube 41 is movably engaged in the glue storage groove 301. A through groove 102 is vertically opened at the bottom of the middle nut 1. The groove 101, the through groove 102 and the inner side of the middle nut 1 are interconnected. The outer protective circular frame 2 has multiple positioning grooves 201 arranged in a ring array. The outer side of the filling ring 3 is integrally formed with a positioning protrusion 31 corresponding to the positioning groove 201. The positioning protrusion 31 is movably engaged in the corresponding positioning groove 201 for positioning and installation of the filling ring 3. The outer side of the inner ring pad 4 has a protrusion corresponding to the positioning groove 201. The protrusion is movably engaged in the positioning groove 201.

[0020] The outer wall of the outer protective circular frame 2, the outer wall of the positioning protrusion 31, and the raised outer wall form a circular surface structure.

[0021] The anti-theft nut also includes a partition frame 5, which is movably engaged with the middle of the filling ring 3. The end of the partition frame 5 away from the glue storage tank 301 is integrally formed with a bottom seal 51. The upper surface of the bottom seal 51 is in contact with the end face of the filling ring 3 away from the glue storage tank 301. The partition frame 5 and the bottom seal 51 isolate the inner side of the glue storage tank 301. When installing the anti-theft nut, the fixing glue is introduced into the glue storage tank 301 and stored through the partition frame 5. The end of the partition frame 5 away from the bottom seal 51 is movably engaged with a cover 6, which seals the glue storage tank 301. The outer side of the cover 6 is integrally formed with multiple disassembly protrusions 61, which facilitate manual disassembly of the cover 6.

[0022] Working principle: When in use, the fixing glue is introduced into the glue storage tank 301 in advance and stored in isolation through the middle partition frame 5. The cap 6 is then inserted into the middle partition frame 5 at the end away from the bottom seal seat 51, and the cap 6 seals the glue storage tank 301. Insert the anti-theft nut into the groove 101 using an external tool and rotate the middle nut 1 to thread the middle nut 1 onto the bolt. Then, movably engage the inner filling tube 41 into the glue storage tank 301 and movably engage the protrusion into the positioning groove 201. Subsequently, the cover 6 is manually removed by disassembling the protrusion 61. The filling ring 3 with the partition frame 5 is passed through the bolt and gradually inserted into the groove 101. The middle nut 1 is gradually pushed out of the partition frame 5. At the same time, the inner filling tube 41 is gradually inserted into the glue storage tank 301. The glue in the glue storage tank 301 is squeezed into the groove 101. A small part of the glue is used to fix the middle nut 1 and the bolt through the inside of the nut 1 in the through groove 102. The glue also fixes the filling ring 3 and the bottom ring 11. At this time, the outer wall of the outer protective circular frame 2, the outer wall of the positioning protrusion 31, and the protruding outer wall form a circular surface structure, which can effectively prevent the middle nut 1 from being removed from the bolt.

[0023] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-removable anti-theft nut for electric power towers, comprising a middle nut (1), characterized in that: The bottom of the middle nut (1) is integrally formed with a bottom ring (11), and the top of the bottom ring (11) is integrally formed with an outer protective round frame (2). A groove (101) is formed between the outer side of the middle nut (1) and the inner side of the outer protective round frame (2). A filling ring (3) is movably locked in the groove (101). A glue storage groove (301) is opened at the bottom of the filling ring (3). An inner ring pad (4) is movably locked at the bottom of the groove (101). An inner filling tube (41) is integrally formed at the top of the inner ring pad (4). The inner filling tube (41) is movably locked in the glue storage groove (301). A through groove (102) is vertically opened at the bottom of the middle nut (1). The groove (101), the through groove (102) and the inner side of the middle nut (1) are interconnected. The outer protective circular frame (2) has multiple positioning grooves (201) arranged in a ring array. The outer side of the filling ring (3) is integrally formed with a positioning protrusion (31) corresponding to the positioning groove (201). The positioning protrusion (31) is movably engaged in the corresponding positioning groove (201).

2. The non-removable anti-theft nut for power transmission towers according to claim 1, characterized in that: The outer side of the inner ring pad (4) is provided with a protrusion corresponding to the positioning groove (201), and the protrusion is movably engaged in the positioning groove (201).

3. A non-removable anti-theft nut for power transmission towers according to claim 2, characterized in that: The outer wall of the outer protective circular frame (2), the outer wall of the positioning protrusion (31), and the raised outer wall form a circular surface structure.

4. The non-removable anti-theft nut for power transmission towers according to claim 1, characterized in that: The anti-theft nut also includes a partition frame (5), which is movably snapped into the middle of the filling ring (3). The end of the partition frame (5) away from the glue storage tank (301) is integrally formed with a bottom seal (51), and the upper surface of the bottom seal (51) is in contact with the end face of the filling ring (3) away from the glue storage tank (301).

5. A non-removable anti-theft nut for power transmission towers according to claim 4, characterized in that: The middle partition frame (5) is equipped with a cover (6) at one end away from the bottom seal seat (51), and the cover (6) seals the glue storage tank (301).

6. A non-removable anti-theft nut for power transmission towers according to claim 5, characterized in that: The outer side of the cover (6) is integrally formed with multiple disassembly protrusions (61).