A wire and lightning conductor protection fitting
By combining the protective shell, auxiliary limiting components, toggle components, and clamping components, the slippage problem caused by bolt aging in traditional protective hardware is solved, achieving stable fastening of conductors and lightning protection wires, and improving the environmental adaptability and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANDAN ZHIZENG FASTENER MANUFACTURING CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional conductors and lightning protection wires are fixed with bolts. After long-term use, the fasteners are prone to aging due to external environmental factors, which may cause lateral slippage and affect stability.
The design incorporates a combination of a protective shell, auxiliary limiting components, a rotary component, and a clamping component. Through the cooperation of fastening bolts, nuts, external threaded cylinders, internal threaded grooves, elastic clamping paddles, and auxiliary spiked wheels, multiple fastenings are achieved to enhance the fixing effect and prevent slippage.
It improves the environmental adaptability and fastening stability of protective hardware, avoids the impact of abnormal weather, and ensures the stable fixation of conductors and lightning protection wires.
Smart Images

Figure CN224481444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective fittings technology, specifically to a protective fitting for conductors and lightning protection wires. Background Technology
[0002] Transmission lines, as the "arteries" of the power system, undertake the efficient transmission of electrical energy from the generation end to the user end. Their safe and stable operation is directly related to the normal order of social production and life. Protective hardware for conductors and lightning protection wires is the core guarantee for the safe operation of transmission lines. Its design and application directly address the challenges faced by conductors, such as mechanical vibration, electrical degradation, and environmental erosion. As the power system develops towards higher voltage, longer distance, and intelligence, technological innovation in protective hardware will continue to focus on improving reliability, adaptability, and intelligence, providing solid support for the construction of a new power system under the "dual carbon" target. As an important category of power hardware, protective hardware ensures the safe operation of the power system through functions such as vibration suppression, electric field equalization, lightning protection, and corrosion resistance. This device is divided into two categories according to function: electrical protection and mechanical protection.
[0003] Protective hardware is a specialized metal accessory used in power systems to protect conductors, lightning rods, insulators, and other electrical devices from mechanical damage or electrical degradation. It is widely used in overhead transmission lines and substations. Mechanical protection includes suppressing conductor vibration (e.g., vibration dampers, spacers) and preventing external force damage (e.g., pull-out weights). Electrical protection includes optimizing electric field distribution (e.g., equalizing rings, shielding rings) and guiding lightning arcs (e.g., arc-damping angles). Through mechanical reinforcement, electric field optimization, and environmentally adaptable design, protective hardware has become a key component ensuring the safe operation of transmission lines. With the expansion of ultra-high voltage power grids and the integration of new energy sources, its technological development is evolving towards intelligence, multi-functionality, and environmental friendliness, providing core support for the efficient and reliable operation of power systems.
[0004] Traditional protective hardware for conductors and lightning protection wires is usually fixed to the conductors or lightning protection wires with bolts during use. After long-term fixation, the fasteners may age due to the influence of the external environment, and lateral slippage may occur. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a protective hardware for conductors and lightning protection wires. It solves the problem that in the prior art, the protective hardware for conductors and lightning protection wires is usually fixed to the conductors or lightning protection wires with bolts. After long-term fixation, the fixing parts often age due to the influence of the external environment, which may cause lateral slippage.
[0006] According to one aspect, at least one embodiment of the present invention provides a protective fitting for conductors and lightning protection wires, including a protective housing, wherein fastening bolts are provided through the top of the protective housing near the four corners, and fastening nuts are threadedly connected to the outer surface of the fastening bolts near the bottom of the protective housing, and further comprising:
[0007] Auxiliary limiting components are provided, with a total of four auxiliary limiting components, arranged in pairs, and the two sets of auxiliary limiting components are respectively fixedly installed on the inner sides of the protective shell.
[0008] The rotary assembly has two parts, and the two rotary assemblies are respectively threaded to both ends of the protective shell;
[0009] The clamping assembly has two components, which are rotatably connected to the rotary assembly.
[0010] In a preferred embodiment, the protective housing includes a lower protective housing and an upper protective housing, the lower protective housing and the upper protective housing are disposed opposite to each other, and the top of the upper protective housing is provided with fastening through holes near the four corners, the fastening through holes extending to the bottom of the lower protective housing.
[0011] In a preferred embodiment, internal threaded grooves are provided on the edges near both ends of the opposite side of the lower protective shell and the upper protective shell, and clamping blocks are fixedly provided on the opposite side of the lower protective shell and the upper protective shell near the center.
[0012] In a preferred embodiment, the two sets of auxiliary limiting components include two sets of limiting blocks. An arc-shaped inner inclined groove is provided through the opposite side of each of the two sets of limiting blocks. Three limiting inclined grooves are provided at equal intervals along the circumferential direction on the inner surface of each of the two sets of arc-shaped inner inclined grooves.
[0013] In a preferred embodiment, the two rotary components include external threaded cylinders, and anti-slip rotary blocks are fixedly welded to one end of each external threaded cylinder. Anti-slip grooves are formed on the outer surface of each anti-slip rotary block.
[0014] In a preferred embodiment, the external threaded cylinder is threadedly connected to the internal threaded groove.
[0015] In a preferred embodiment, the two clamping assemblies include two annular sliders, which are rotatably connected to one end of the external threaded cylinder. Each of the two annular sliders has three elastic clamping paddles fixedly arranged at equal intervals along the circumferential direction at opposite ends. Each of the multiple elastic clamping paddles has an auxiliary spike wheel rotatably connected to its opposite end, and the outer surface of the auxiliary spike wheel is provided with spikes.
[0016] In a preferred embodiment, the elastic clamping paddle is slidably engaged with the limiting groove.
[0017] The beneficial effects of the embodiments of this utility model are as follows:
[0018] In this utility model, in order to ensure the improved environmental adaptability of the protective hardware, when the lower protective shell and the upper protective shell are fixed and covered by fastening bolts and fastening nuts, the wires or lightning protection wires can be fastened by two clamping blocks to complete the initial fixation, improve the fastening effect of the equipment, and avoid the impact of abnormal weather such as storms on the fastening effect.
[0019] The system utilizes a threaded connection between the external threaded cylinder and the internal threaded groove, a sliding engagement between the elastic clamping plate and the limiting inclined groove, and a rotating connection between the annular slider and the external threaded cylinder. By rotating the two anti-slip torsion blocks, the elastic clamping plate can slide inward within the limiting inclined groove. The arc-shaped internal inclined groove allows one end of the elastic clamping plate to retract inward, further securing the conductor or lightning protection wire. The auxiliary spiked wheel increases friction with the conductor or lightning protection wire, preventing lateral slippage after the anti-slip torsion blocks are adjusted, thus achieving secondary tightening, improving the stability of the equipment after tightening, and enhancing its performance. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0021] Figure 1 This is a perspective view of the main structure of this utility model;
[0022] Figure 2 This is a bottom-view perspective view of the structure of this utility model;
[0023] Figure 3 This is a top view of the internal structure of this utility model;
[0024] Figure 4 This is a perspective view of the protective shell and auxiliary limiting component structure of this utility model;
[0025] Figure 5 This is a perspective view of the structure of the rotary assembly and clamping assembly of this utility model;
[0026] In the diagram: 1. Protective outer shell; 11. Lower protective shell; 12. Upper protective shell; 13. Fastening through hole; 14. Internal threaded groove; 15. Clamping block; 2. Fastening bolt; 3. Fastening nut; 4. Auxiliary limiting assembly; 41. Limiting block; 42. Arc-shaped internal inclined groove; 43. Limiting inclined groove; 5. Twist assembly; 51. External threaded cylinder; 52. Anti-slip twist block; 6. Clamping assembly; 61. Annular slider; 62. Elastic clamping paddle; 63. Auxiliary spike wheel. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-3 As shown, this invention illustrates a protective fitting for a conductor and lightning protection wire according to one embodiment of the present invention. The fitting includes a protective housing 1, with fastening bolts 2 extending through the top of the housing 1 near each of the four corners. Fastening nuts 3 are threaded onto the outer surface of the fastening bolts 2 near the bottom of the housing 1. The fitting also includes:
[0034] Auxiliary limiting components 4 are provided in total, and two groups are set in pairs. The two groups of auxiliary limiting components 4 are fixedly installed on the inside two sides of the protective shell 1.
[0035] Two knob assemblies 5 are provided, and the two knob assemblies 5 are respectively threaded to both ends of the protective shell 1;
[0036] Clamping assembly 6, two clamping assemblies 6 are provided, and clamping assembly 6 is rotatably connected to the rotary assembly 5;
[0037] In this embodiment, during installation, the two rotary components 5 are first rotated to the outside of the protective housing 1, and the wire or lightning protection wire is passed from one end of one rotary component 5 through the other rotary component 5. By setting the fastening bolt 2 and the fastening nut 3, the protective housing 1 can be fixed. Thus, the wire and lightning protection wire are tightened and protected by fixing the protective housing 1, which improves the stability after tightening and completes the initial fixing. In order to ensure the environmental adaptability of the protective hardware is improved, the tightening effect of the equipment is improved, and the tightening effect is avoided from being affected by abnormal weather such as storms.
[0038] like Figures 1-4As shown, it illustrates the protective shell 1 and auxiliary limiting component 4 in another embodiment of the present invention. The protective shell 1 includes a lower protective shell 11 and an upper protective shell 12. The lower protective shell 11 and the upper protective shell 12 are disposed opposite to each other. The top of the upper protective shell 12 is provided with fastening through holes 13 near the four corners. The fastening through holes 13 extend to the bottom of the lower protective shell 11. The lower protective shell 11 and the upper protective shell 12 are provided with internal thread grooves 14 near the edges of both ends on opposite sides. The lower protective shell 11 and the upper protective shell 12 are fixedly provided with clamping blocks 15 near the center on opposite sides.
[0039] The two sets of auxiliary limiting components 4 include two sets of limiting blocks 41. An arc-shaped inner inclined groove 42 is provided through the opposite side of the two sets of limiting blocks 41. Three limiting inclined grooves 43 are provided at equal intervals along the circumferential direction on the inner surface of the two sets of arc-shaped inner inclined grooves 42.
[0040] In this embodiment, the relative covering of the lower protective shell 11 and the upper protective shell 12 allows the fastening through holes 13, internal threaded grooves 14, clamping blocks 15, and auxiliary limiting components 4 inside the lower and upper protective shells 11 and 12 to be arranged opposite to each other. The relative arrangement of the fastening through holes 13 facilitates the lower protective shell 11 and the upper protective shell 12 to be passed through by fastening bolts 2 and fastened by the threaded connection between the fastening nuts 3 and the fastening bolts 2. The relative arrangement of the internal threaded grooves 14 allows the torsion assembly 5 to be threadedly connected to both ends of the protective shell 1. The relative covering of the two clamping blocks 15 allows the wire or lightning protection wire to be fastened. The setting of the auxiliary limiting components 4 allows the clamping assembly 6 to be limited.
[0041] like Figures 1-5 As shown, it illustrates a rotary assembly 5 and a clamping assembly 6 in another embodiment of the present invention. The two rotary assemblies 5 include external threaded cylinders 51. Anti-slip rotary blocks 52 are fixedly welded to one end of each external threaded cylinder 51. Anti-slip grooves are provided on the outer surfaces of the two anti-slip rotary blocks 52. The external threaded cylinders 51 are threadedly connected to the internal threaded grooves 14.
[0042] The two clamping assemblies 6 include two annular sliders 61, which are rotatably connected to one end of the external threaded cylinder 51. Each of the two annular sliders 61 has three elastic clamping paddles 62 fixedly arranged at equal intervals along the circumferential direction at opposite ends. Each of the multiple elastic clamping paddles 62 has an auxiliary spike wheel 63 rotatably connected to opposite ends. The outer surface of the auxiliary spike wheel 63 is provided with spikes. The elastic clamping paddles 62 are slidably engaged with the limiting inclined groove 43.
[0043] In this embodiment, the conductor or lightning protection wire can first pass through the external threaded cylinder 51 and exit from the opposite end of another external threaded cylinder 51. After the lower protective housing 11 and the upper protective housing 12 are closed and fastened by the fastening bolts 2 and fastening nuts 3, the threaded connection between the external threaded cylinder 51 and the internal threaded groove 14, the sliding engagement between the elastic clamping plate 62 and the limiting inclined groove 43, and the rotatable connection between the annular slider 61 and the external threaded cylinder 51 can be achieved by rotating the two anti-slip torsion blocks 52, which can drive the elastic clamping plate 62 to slide inward inside the limiting inclined groove 43. The arc-shaped inner inclined groove 42 allows one end of the elastic clamping plate 62 to be retracted inward, further tightening the conductor or lightning protection wire. The auxiliary spike wheel 63 increases the friction with the conductor or lightning protection wire, ensuring that the anti-slip torsion block 52 will not slip after rotation adjustment.
[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A protective fitting for conductors and lightning protection wires, comprising a protective housing (1), wherein fastening bolts (2) are provided through the top of the protective housing (1) near the four corners, and fastening nuts (3) are threadedly connected to the outer surface of the fastening bolts (2) near the bottom of the protective housing (1), characterized in that, Also includes: Auxiliary limiting components (4), there are four auxiliary limiting components (4) in total, which are set in pairs. The two sets of auxiliary limiting components (4) are respectively fixedly installed on the inside sides of the protective shell (1). Two rotary components (5) are provided, and the two rotary components (5) are respectively threaded to both ends of the protective shell (1); Clamping assembly (6), two clamping assemblies (6) are provided, and the clamping assembly (6) is rotatably connected to the rotary assembly (5).
2. The protective fitting for conductors and lightning protection wires according to claim 1, characterized in that, The protective housing (1) includes a lower protective housing (11) and an upper protective housing (12). The lower protective housing (11) and the upper protective housing (12) are arranged opposite to each other. The top of the upper protective housing (12) is provided with fastening through holes (13) near the four corners. The fastening through holes (13) extend to the bottom of the lower protective housing (11).
3. The protective fitting for conductors and lightning protection wires according to claim 2, characterized in that, The lower protective housing (11) and the upper protective housing (12) are provided with internal thread grooves (14) on the opposite side near the edges of both ends, and clamping blocks (15) are fixedly provided on the opposite side near the center of the lower protective housing (11) and the upper protective housing (12).
4. The protective fitting for conductors and lightning protection wires according to claim 1, characterized in that, The two sets of auxiliary limiting components (4) include two sets of limiting blocks (41). An arc-shaped inner inclined groove (42) is provided through the opposite side of the two sets of limiting blocks (41). Three limiting inclined grooves (43) are provided at equal intervals along the circumferential direction on the inner surface of the two sets of arc-shaped inner inclined grooves (42).
5. The protective fitting for conductors and lightning protection wires according to claim 1, characterized in that, The two rotary components (5) include external threaded cylinders (51), and anti-slip rotary blocks (52) are fixedly welded to one end of each external threaded cylinder (51). Anti-slip grooves are provided on the outer surface of each anti-slip rotary block (52).
6. The protective fitting for conductors and lightning protection wires according to claim 5, characterized in that, The external threaded cylinder (51) is threadedly connected to the internal threaded groove (14).
7. The protective fitting for conductors and lightning protection wires according to claim 1, characterized in that, The two clamping assemblies (6) include two annular sliders (61), which are rotatably connected to one end of the external threaded cylinder (51). Each of the two annular sliders (61) has three elastic clamping paddles (62) fixedly arranged at equal intervals along the circumferential direction at opposite ends. Each of the multiple elastic clamping paddles (62) has an auxiliary spike wheel (63) rotatably connected to opposite ends. The outer surface of the auxiliary spike wheel (63) is provided with spikes.
8. The protective fitting for conductors and lightning protection wires according to claim 7, characterized in that, The elastic clamping paddle (62) is slidably engaged with the limiting groove (43).