High-strength electric power fitting with support structure

By using the threaded connection between the support cylinder and the adjusting column and designing the adjusting device, the problems of cumbersome operation of the power fitting length adjustment and wire fixing device are solved, thereby improving the versatility of the fittings and the stability and safety of the power lines.

CN224501579UActive Publication Date: 2026-07-14HEBEI BICHUANG ELECTRIC POWER TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI BICHUANG ELECTRIC POWER TECHNOLOGY CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing power fittings have limited flexibility in length adjustment and poor versatility. The twisted wire fixing device is cumbersome to operate and lacks sufficient fixing stability, making it difficult to adapt to the challenges of complex line layouts and severe weather.

Method used

Design a high-strength power fitting with a support structure. The length can be adjusted by the threaded connection between the support cylinder and the adjusting column. The connecting plate and chuck in the adjusting device cooperate to realize the quick installation and adjustment of the wire fixing device. The arc block provides stable support.

Benefits of technology

It enables flexible adjustment of the fitting length, improves versatility and ease of operation, and enhances the stability and transmission safety of power lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to power fittings technical field, especially a kind of high-strength power fittings with support structure, including support cylinder, the outer surface front of support cylinder is opened with front groove, the rear groove wall of front groove is opened with first screw hole, fixed peg is threadedly connected in first screw hole, adjusting column is threadedly fixedly connected in support cylinder by fixed peg, the outer surface front of adjusting column is opened with multiple second screw holes, the upper end of adjusting column and the lower end of support cylinder are both fixedly connected with adjusting device, the outer surface of two adjusting devices is all clamped with multiple twisted wire fixing devices. A kind of high-strength power fittings with support structure described in the utility model, by setting the support cylinder and adjusting column of adjustable length, the adjusting device of being convenient for installation adjustment and the stable twisted wire fixing device, solve the problem that the length adaptability of existing power fittings is poor, twisted wire fixing device installation adjustment is complicated and the problem of insufficient line fixing stability.
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Description

Technical Field

[0001] This utility model relates to the field of power fittings technology, and in particular to a high-strength power fitting with a support structure. Background Technology

[0002] As a key component in the power system used for the connection, fixation and protection of overhead transmission lines and substation equipment, the performance of power fittings is directly related to the safe and stable operation of power lines. With the rapid development of the power industry, higher requirements have been put forward for the strength, adaptability and ease of installation of power fittings.

[0003] In existing technologies, such as Chinese Patent Publication No. CN212137223U, a high-strength connection type power fitting is disclosed. Although this fitting, when connecting insulators, utilizes an upper sleeve, lower sleeve, upper plate, lower plate, and fixing hole, with the upper and lower sleeves not connected to each other, it allows for adjustment of the distance between the upper and lower sleeves to a certain extent according to the size of the connecting parts on the insulator, thus improving applicability. However, this fitting still has some technical problems. Firstly, its length cannot be flexibly adjusted, making it difficult to adapt to the different installation environments and their varying length requirements. The versatility of the power fittings is limited by the diverse needs of the power lines, which are often complicated by complex line layouts and varying tower spacings. Secondly, the installation and adjustment of the wire fixing devices are inconvenient, making the process cumbersome and inefficient when power lines need to be re-laid or adjusted. Thirdly, the stability of the power lines is insufficient, and they are prone to loosening or even falling off in severe weather conditions such as strong winds and heavy rain, which cannot provide reliable protection for power transmission. Therefore, it is necessary to design a high-strength power fitting with a support structure to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a high-strength power fitting with a support structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-strength power fitting with a support structure includes a support cylinder. The front of the outer surface of the support cylinder has a front groove, and the rear wall of the front groove has a first screw hole. A fixing bolt is threaded into the first screw hole. An adjusting column is threadedly connected inside the support cylinder through the fixing bolt. The front of the outer surface of the adjusting column has multiple second screw holes. An adjusting device is fixedly connected to the upper end of the adjusting column and the lower end of the support cylinder. Multiple twisted wire fixing devices are snapped onto the outer surfaces of the two adjusting devices.

[0007] Preferably, the adjusting device includes a connecting plate, the outer surface of which has six mounting grooves, the lower wall of each of the six mounting grooves is fixedly connected to a mating post, the upper center of which has a keyway, a key post is engaged in the keyway, the upper end of the key post is fixedly connected to a chuck, the outer surface of the chuck has handle grooves around its perimeter, and the connecting plate is fixedly connected to the upper end of the adjusting post.

[0008] Preferably, the twisted wire fixing device includes a side block, the upper end of the side block has a through groove, one end of the side block is fixedly connected to an arc-shaped block, the outer wall of the arc-shaped block is fixedly connected to four wires for fixing the twisted wires, and the side block is snapped onto the outside of the docking recess.

[0009] Preferably, the central axis of the adjusting column coincides with the central axis of the support cylinder, and a plurality of second screw holes are distributed at equal intervals along the length of the adjusting column, the distance between two adjacent second screw holes is 3cm, and the diameter of the second screw hole is the same as the diameter of the first screw hole.

[0010] Preferably, the six mounting slots are evenly distributed along the circumferential direction of the outer surface of the connecting plate, and the included angle between two adjacent mounting slots is 60°.

[0011] Preferably, the arc of the arc block is 120°, and the outer arc surface of the arc block is smoothly connected to one end of the side block. The wire fixing strands are divided into two groups, with two wire fixing strands in each group. The two groups of wire fixing strands are located on the upper and lower sides of the outer wall of the arc block, respectively.

[0012] Preferably, the height of the key post is the same as the depth of the keyway, the diameter of the chuck is equal to the diameter of the connecting plate, and the position of the mating recess is adapted to the position of the side block.

[0013] Preferably, the handle groove is an arc-shaped groove, and the four handle grooves are evenly distributed along the circumferential direction of the outer surface of the chuck.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, by aligning the central axis of the adjusting column with the central axis of the support cylinder, the stability of the overall structure is ensured. The first screw hole on the support cylinder and the multiple second screw holes of the same diameter that are evenly distributed along the length direction on the adjusting column, together with the threaded connection of the fixing bolt, can accurately and conveniently achieve flexible adjustment of the overall length of the fitting. Whether facing transmission lines with different tower spacing or complex and ever-changing installation environments, the required length can be quickly achieved by adjusting the different second screw holes connected to the fixing bolt, which significantly enhances the versatility of the fitting and effectively solves the problem that the length of the fitting cannot flexibly adapt to diverse installation needs in the prior art.

[0016] 2. In this utility model, the outer surface of the connecting plate in the adjusting device has six mounting grooves with an included angle of 60° evenly distributed. The mating concave post on the lower groove wall is precisely matched with the position and size of the side block of the wire fixing device. This enables the wire fixing device to achieve quick and accurate snap-fit ​​installation. The cooperation between the key post and the keyway, as well as the design of equal diameter of the chuck and the connecting plate, ensures the stability of the connection between the chuck and the connecting plate. At the same time, the four arc-shaped handle grooves evenly distributed on the chuck greatly facilitate the operator to manually rotate the chuck, thereby flexibly adjusting the position of the wire fixing device. When it is necessary to re-lay or adjust the power line, the operator can easily operate through the handle grooves to quickly complete the disassembly, installation and position adjustment of the wire fixing device, which greatly improves work efficiency and overcomes the problem of cumbersome installation and adjustment operation of the wire fixing device in the prior art.

[0017] 3. In this utility model, the tight snap-fit ​​between the side block and the docking concave post provides a reliable connection foundation for the entire device. The smooth transition between the outer arc surface of the 120° arc block and one end of the side block not only enhances the overall integrity of the structure but also improves the support strength for the power line. The four wire fixing strands on the outer wall of the arc block are divided into two groups, with two strands in each group. This layout can wrap and fix the power line from multiple angles, effectively dispersing the tension on the line and ensuring smooth and stable power transmission, thus solving the problem of insufficient power line fixing stability in the prior art. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a high-strength power fitting with a support structure, showing the maximum distance between the two adjusting devices.

[0019] Figure 2 This is a schematic diagram of the overall disassembled structure of a high-strength power fitting with a support structure according to the present invention;

[0020] Figure 3 This is a schematic diagram of the adjustment device and the partially enlarged combined connection structure of a high-strength power fitting with a support structure according to this utility model.

[0021] Figure 4 This is a schematic diagram of the strand fixing device for a high-strength power fitting with a support structure according to the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of a high-strength power fitting with a support structure, showing the minimum distance between the two adjusting devices.

[0023] In the diagram: 1. Support cylinder; 2. Front groove; 3. Fixing bolt; 4. Adjusting device; 5. Twisted wire fixing device; 6. First screw hole; 7. Adjusting column; 8. Second screw hole; 43. Connecting plate; 44. Mounting groove; 45. Butt joint recess; 46. Keyway; 47. Chuck; 48. Handle groove; 49. Key column; 51. Arc block; 52. Side block; 53. Groove; 54. Wire fixing twisted wire. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A high-strength electrical fitting with a support structure includes a support cylinder 1. The front of the outer surface of the support cylinder 1 has a front groove 2, and the rear wall of the front groove 2 has a first screw hole 6. A fixing bolt 3 is threaded into the first screw hole 6. An adjusting column 7 is threadedly connected to the support cylinder 1 through the fixing bolt 3. The front of the outer surface of the adjusting column 7 has multiple second screw holes 8. An adjusting device 4 is fixedly connected to the upper end of the adjusting column 7 and the lower end of the support cylinder 1. Multiple twisted wire fixing devices 5 are snapped onto the outer surface of the two adjusting devices 4. The central axis of the adjusting column 7 coincides with the central axis of the support cylinder 1. The multiple second screw holes 8 are evenly distributed along the length of the adjusting column 7. The distance between two adjacent second screw holes 8 is 3 cm, and the diameter of the second screw hole 8 is the same as the diameter of the first screw hole 6.

[0029] Through the above scheme: the central axis of the support cylinder 1 and the adjusting column 7 are coincident, ensuring the stability of the overall structure. Multiple second screw holes 8, which are evenly distributed along the length of the adjusting column 7 and have an adjacent spacing of 3cm, have the same diameter as the first screw holes 6 on the front groove 2 and rear groove wall of the support cylinder 1. This allows the fixing bolt 3 to securely fix the adjusting column 7 in the support cylinder 1 through threaded connection, realizing flexible adjustment of the overall length of the hardware. It can adapt to different installation environments and distance requirements, enhancing the versatility and practicality of the hardware. At the same time, the threaded connection method ensures the firmness of the connection and improves the high-strength support capacity of the hardware.

[0030] In this embodiment, the adjusting device 4 includes a connecting plate 43. The outer surface of the connecting plate 43 has six mounting slots 44. The lower wall of each of the six mounting slots 44 is fixedly connected to a mating post 45. The upper center of the connecting plate 43 has a keyway 46. A key post 49 is engaged in the keyway 46. The upper end of the key post 49 is fixedly connected to a chuck 47. The outer surface of the chuck 47 has handle grooves 48 all around. The connecting plate 43 is fixedly connected to the upper end of the adjusting post 7. The six mounting slots 44 are evenly distributed along the circumferential direction of the outer surface of the connecting plate 43. The included angle between two adjacent mounting slots 44 is 60°. The height of the key post 49 is the same as the depth of the keyway 46. The diameter of the chuck 47 is equal to the diameter of the connecting plate 43. The position and size of the mating post 45 are adapted to the position and size of the side block 52. The handle grooves 48 are arc-shaped grooves, and the four handle grooves 48 are evenly distributed along the circumferential direction of the outer surface of the chuck 47.

[0031] Through the above scheme: the six mounting grooves 44 on the outer surface of the connecting plate 43 in the adjusting device 4 are evenly distributed along the circumference and the adjacent included angle is 60°. They are matched with the mating concave post 45 on the lower groove wall and the position and size of the side block 52, so as to realize the precise snap-fit ​​installation of the twisted wire fixing device 5. The height of the key post 49 is the same as the depth of the keyway 46 and the diameter of the chuck 47 is equal to the diameter of the connecting plate 43, which ensures the stable connection between the chuck 47 and the connecting plate 43. The four arc-shaped handle grooves 48 evenly distributed along the circumference of the outer surface of the chuck 47 facilitate the disassembly and installation of the twisted wire fixing device 5, improve the convenience of installation and adjustment, and the setting of multiple mounting grooves 44 increases the number of twisted wire fixing devices 5 that can be installed, meeting the needs of multi-line fixing.

[0032] In this embodiment, the wire fixing device 5 includes a side block 52, with a through groove 53 at the upper end of the side block 52. An arc-shaped block 51 is fixedly connected to one end of the side block 52. Four wire fixing strands 54 are fixedly connected to the outer wall of the arc-shaped block 51. The side block 52 is snapped onto the outside of the docking recess 45. The arc of the arc-shaped block 51 is 120°, and the outer arc surface of the arc-shaped block 51 is smoothly connected to one end of the side block 52. The wire fixing strands 54 are divided into two groups, with two strands in each group. The two groups of wire fixing strands 54 are located on the upper and lower sides of the outer wall of the arc-shaped block 51, respectively.

[0033] Through the above scheme: the side block 52 of the wire fixing device 5 is snapped onto the outside of the docking concave post 45 to achieve connection with the adjusting device 4. The outer arc surface of the 120° arc block 51 is smoothly connected to one end of the side block 52, which enhances the integrity and stability of the structure. The four wire fixing twisted wires 54 are divided into two groups of two wires each, which can reliably wind and fix the power line. The through groove 53 at the upper end of the side block 52 assists in the layout and arrangement of the line, avoids the line from being messy, and improves the stability and safety of fixing the power line as a whole, ensuring smooth power transmission.

[0034] It should be noted that this utility model is a high-strength power fitting with a support structure. When in operation, the overall length of this high-strength power fitting with a support structure is first adjusted through the cooperation of the support cylinder 1 and the adjusting column 7. Specifically, the adjusting column 7 is inserted into the support cylinder 1, and the corresponding second screw hole 8 on the adjusting column 7 is selected according to the required length, aligning the second screw hole 8 with the first screw hole 6 on the rear wall of the front groove 2 on the support cylinder 1. Then, the fixing bolt 3 is threaded into the first screw hole 6 and the corresponding second screw hole 8, thereby fixing the adjusting column 7 to the support cylinder 1. The adjusting device 4 is used to install and adjust the twisted wire fixing device 5, wherein the connecting disc 43 is fixed to the upper end of the adjusting column 7 and the lower end of the support cylinder 1 respectively. The chuck 47 can be installed on the connecting plate 43 by the snap-fit ​​of the keyway 46 and the key post 49. The chuck 47 can be rotated to adjust its position by using the handle groove 48. The six mounting grooves 44 on the outer surface of the connecting plate 43 and the mating recess 45 on the lower groove wall are used to mate with the side block 52 of the wire fixing device 5, so that the side block 52 snaps into the outside of the mating recess 45, thereby realizing the installation and fixing of the wire fixing device 5. The arc-shaped block 51 in the wire fixing device 5 provides a supporting base. The wire fixing strands 54 on its outer block wall are divided into upper and lower groups, with two strands in each group for winding and fixing the power line. The through groove 53 can assist in the laying and fixing of the line. Through the synergistic effect of the above components, the stable support and fixing of the power line is achieved.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength electrical fitting with a support structure, comprising a support cylinder (1), characterized in that: The front of the outer surface of the support cylinder (1) has a front groove (2), and the rear groove wall of the front groove (2) has a first screw hole (6). A fixing bolt (3) is threaded into the first screw hole (6). An adjusting column (7) is threadedly connected to the support cylinder (1) through the fixing bolt (3). The front of the outer surface of the adjusting column (7) has multiple second screw holes (8). The upper end of the adjusting column (7) and the lower end of the support cylinder (1) are both fixedly connected to adjusting devices (4). Multiple twisted wire fixing devices (5) are snapped onto the outer surfaces of the two adjusting devices (4).

2. A high-strength power fitting with a support structure according to claim 1, characterized in that: The adjusting device (4) includes a connecting plate (43). The outer surface of the connecting plate (43) has six mounting slots (44). The lower wall of each of the six mounting slots (44) is fixedly connected to a mating post (45). The upper middle part of the connecting plate (43) has a keyway (46). A key post (49) is engaged in the keyway (46). The upper end of the key post (49) is fixedly connected to a chuck (47). The outer surface of the chuck (47) has handle grooves (48) all around. The connecting plate (43) is fixedly connected to the upper end of the adjusting post (7).

3. A high-strength power fitting with a support structure according to claim 1, characterized in that: The twisted wire fixing device (5) includes a side block (52), the upper end of which has a through groove (53), one end of which is fixedly connected to an arc-shaped block (51), and the outer wall of the arc-shaped block (51) is fixedly connected to four wire fixing twisted wires (54), and the side block (52) is snapped onto the outside of the docking concave post (45).

4. A high-strength power fitting with a support structure according to claim 1, characterized in that: The central axis of the adjusting column (7) coincides with the central axis of the support cylinder (1). Multiple second screw holes (8) are distributed at equal intervals along the length of the adjusting column (7). The distance between two adjacent second screw holes (8) is 3cm, and the diameter of the second screw hole (8) is the same as the diameter of the first screw hole (6).

5. A high-strength power fitting with a support structure according to claim 2, characterized in that: The six mounting slots (44) are evenly distributed along the circumferential direction of the outer surface of the connecting plate (43), and the included angle between two adjacent mounting slots (44) is 60°.

6. A high-strength power fitting with a support structure according to claim 3, characterized in that: The arc of the arc block (51) is 120°, and the outer arc surface of the arc block (51) is smoothly connected to one end of the side block (52). The wire fixing strand (54) is divided into two groups, and there are two wire fixing strands in each group. The two groups of wire fixing strands (54) are located on the upper and lower sides of the outer wall of the arc block (51).

7. A high-strength power fitting with a support structure according to claim 2, characterized in that: The height of the key post (49) is the same as the depth of the keyway (46), the diameter of the chuck (47) is the same as the diameter of the connecting plate (43), and the position of the mating recess (45) is adapted to the position of the side block (52).

8. A high-strength power fitting with a support structure according to claim 2, characterized in that: The handle groove (48) is an arc-shaped groove, and the four handle grooves (48) are evenly distributed along the circumferential direction of the outer surface of the chuck (47).