Power transmission line connection fitting

Abstract

The utility model provides a power transmission line connecting fitting, which relates to the technical field of connecting fittings, and comprises a hanging plate main body, a cross arm, a connecting piece, an insulator ball head end and a plurality of groups of connecting assemblies, an external thread is arranged on a connecting rod between the insulator ball head end and an insulator, the external thread is in threaded connection with a connecting accessory, and the connecting accessory is in threaded connection with the cross arm. The connecting accessory extends from the top end of the hanging plate main body to the top end of the connecting piece and is bent to surround the cross arm to the bottom of the hanging plate main body, the connecting accessory is connected with the cross arm and the connecting assembly at the through hole, and the connecting accessory is connected with the cross arm to suspend the ball head end of the insulator; by introducing the connecting accessory and connecting the connecting accessory with the cross arm, the pressure borne by the hanging part of the right-angle hanging plate is dispersed, the problem of deformation of the hanging part of the right-angle hanging plate in the long-term hanging process is effectively avoided, the durability of the connecting fitting is improved, potential safety hazards caused by deformation of the hanging part are reduced, and the service life of the connecting fitting is prolonged. And the suspension structure is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting fittings, in particular to a connecting fitting for an electric power transmission line. Background Art

[0002] The right-angle hanging plate of electric power fittings is a special fitting used in electric power transmission and distribution lines. Various components of the electric power transmission line need to be connected through the right-angle hanging plate of the connecting fitting, such as the cross arm and the insulator, to ensure that they are stable and vertical without being affected by external factors during the wire transmission process. The right-angle hanging plate of electric power fittings needs to bear the weight of the line itself and also the additional loads caused by external factors such as wind, rain and ice.

[0003] At present, the right-angle hanging plate of electric power fittings has the following defects during the installation and use process:

[0004] 1. Single hanging structure:

[0005] When the cross arm and the insulator are connected through the right-angle hanging plate, when the ball head of the insulator is stuck into the hanging part of the right-angle hanging plate, after a bolt passes through the ball head from one end of the hanging part and is connected to a nut at the other end, and an anti-detachment pin is inserted, the insulator and its connected line components are suspended by the right-angle hanging plate installed on the cross arm. However, during the long-term use process, being supported by the right-angle hanging plate installed on the cross arm will cause a large downward pressure on the hanging part of the right-angle hanging plate, resulting in the problem of deformation of the hanging part, and regular maintenance and inspection are required, otherwise potential hazards such as power failure and falling will occur.

[0006] 2. Lack of protection for the connection and structure:

[0007] Affected by the external environment, the connection between the connecting piece, the right-angle hanging plate and the insulator installed on the cross arm uses bolts, nuts and anti-detachment pins, and the connecting piece, the right-angle hanging plate and the insulator installed on the cross arm are all made of corrosion-resistant and high-strength materials. However, being affected by the harsh environment for a long time will still cause damage to the connecting parts (bolts, nuts and anti-detachment pins) and the main structure, reducing the service life and leading to potential safety hazards.

[0008] Therefore, we propose a connecting fitting for an electric power transmission line. Utility Model Content

[0009] The purpose of the utility model is to provide a connecting fitting for an electric power transmission line to solve the above deficiencies in the technology.

[0010] To achieve the above object, the utility model provides the following technical solution: A connecting fitting for a power transmission line, comprising a hanging plate main body, a cross arm, a connecting member, an insulator ball head end and several groups of connecting components. The cross section of the hanging plate main body is U-shaped, the bottom of the U-shape forms a hanging part, and through holes which are opposite and coaxial are formed at the tops of the two sides of the U-shape to form an upper mounting part. The insulator ball head end is mounted at the hanging part through a connecting component. The hanging plate main body is clamped inside the connecting member, and the hanging plate main body and the connecting member are mounted by connecting the two through holes through a connecting component. The connecting member is mounted on the cross arm through a connecting component, and the cross arm is located on a power system support facility. An external thread is formed on the connecting rod between the insulator ball head end and the insulator, and a connecting accessory is threadedly connected to the external thread. The connecting accessory extends from the top end of the hanging plate main body to the top end of the connecting member, bends around the cross arm and reaches the bottom of the hanging plate main body. The connecting accessory is connected to the cross arm and the connecting component at the through hole, and the connecting accessory suspends the insulator ball head end through the connection with the cross arm. Protective thin plates are further arranged on both sides of the connecting accessory.

[0011] Further, the connecting accessory is connected to the external thread through an annular connecting sleeve, and the annular connecting sleeve is welded or integrally formed with the connecting accessory.

[0012] Further, the connecting accessory is bent by a wrench, forms a 90° angle with the hanging plate main body before installation, and a bending crease is arranged at the part of the connecting accessory corresponding to the cross arm to be bent.

[0013] Further, the connecting component includes a bolt and a nut. The insulator ball head end is mounted at the hanging part, the hanging plate main body and the connecting member are mounted, and the connecting member and the cross arm are mounted through the connection of the bolt and the nut.

[0014] Further, an installation hole is arranged at the part of the cross arm corresponding to the cross arm to be bent by the connecting accessory, and a first connecting hole is arranged at the position corresponding to the installation hole on the connecting accessory. Then, the connecting accessory is fixed by connecting the first connecting hole and the installation hole with a bolt.

[0015] Further, a second connecting hole is arranged on the connecting accessory corresponding to the bolt screw part for mounting the connecting member and the cross arm. The connecting accessory is fixed by clamping the second connecting hole onto the bolt screw part with a nut, so that a part of the connecting accessory at the second connecting hole is located between the nut for mounting the connecting member and the cross arm and the outer nut at the second connecting hole.

[0016] Further, the thickness of the protective thin plate is 1-3 mm, and the length extends from the insulator ball head end to the part where it bends around the cross arm.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By introducing the connecting accessory and its connection with the cross arm, the pressure borne by the suspension part of the right-angle hanger is dispersed, effectively avoiding the deformation problem of the suspension part of the right-angle hanger during long-term suspension. This design not only improves the durability of the connecting fitting but also reduces the potential safety hazards caused by the deformation of the suspension part, enhancing the suspension structure.

[0019] 2. The design of the connecting accessory not only enhances the stability of the suspension structure but also is provided with a protective thin plate to cover the connection between the connecting piece, the right-angle hanger, and the insulator installed on the cross arm, protecting the connection assembly and effectively preventing the erosion of the connecting piece and the main structure by the external environment, prolonging the service life of the fitting and improving the safety and reliability of the power system.

[0020] Moreover, the connecting accessory adopts a bendable design, making the installation of the fitting more flexible and convenient. The bending angle and position of the connecting accessory can be adjusted according to actual needs through simple operations to adapt to different power line connection requirements. At the same time, the connecting accessory and the cross arm adopt a bolt connection method, which is convenient for installation and disassembly and is conducive to maintenance and repair.

[0021] In summary, through the enhanced suspension structure and protective design, this connecting fitting effectively solves the problems of deformation, vulnerability, and potential safety hazards of the right-angle hanger in the prior art during use, improving the stability and reliability of the power system. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of a connecting fitting for a power transmission line provided by the present utility model;

[0023] Figure 2 It is a schematic diagram of the overall structure of a connecting fitting for a power transmission line provided by the present utility model with the protective thin plate removed;

[0024] Figure 3 It is a schematic diagram of the overall structure of a connecting fitting for a power transmission line provided by the present utility model with the connecting accessory removed;

[0025] Figure 4 It is a side anatomical view of the cross arm structure of a connecting fitting for a power transmission line provided by the present utility model.

[0026] Legend Explanation:

[0027] 1. Hanger main body; 11. Suspension part; 12. Through hole; 13. Installation part;

[0028] 2. Cross arm; 21. Installation hole;

[0029] 3. Connecting piece;

[0030] 4. Ball head end of insulator; 41. Connecting rod; 42. External thread

[0031] 5. Connecting component; 51. Bolt; 52. Nut

[0032] 6. Connecting sub-component; 61. Ring-shaped connecting sleeve; 62. Bent crease; 63. First connecting hole; 64. Second connecting hole

[0033] 7. Protective thin plate Detailed implementation manner

[0034] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0038] Embodiment 1

[0039] As Figures 1-4As shown in the figure, the utility model provides a technical solution: a fitting for connecting a power transmission line, which includes a hanging plate main body 1, a cross arm 2, a connecting piece 3, an insulator ball head end 4, and several groups of connecting components 5. The cross-section of the hanging plate main body 1 is U-shaped. The bottom of the U-shaped forms a suspension part 11. Through holes 12 that are opposite and coaxial are opened at the tops of the two sides of the U-shaped and form an upper mounting part 13. The insulator ball head end 4 is installed at the suspension part 11 through the connecting component 5. The hanging plate main body 1 is clamped inside the connecting piece 3. The hanging plate main body 1 and the connecting piece 3 are installed by connecting the two through holes 12 through the connecting component 5. The connecting piece 3 is installed on the cross arm 2 through the connecting component 5, and the cross arm 2 is located on the power system support facility;

[0040] An external thread 42 is provided on the connecting rod 41 between the insulator ball head end 4 and the insulator. A connecting sub-piece 6 is threadedly connected to the external thread 42. The connecting sub-piece 6 extends from the top end of the hanging plate main body 1 to the top end of the connecting piece 3, bends around the cross arm 2, and reaches the bottom of the hanging plate main body 1. The connecting sub-piece 6 is connected to the cross arm 2 and the connecting component 5 at the through hole 12. By connecting to the cross arm 2, the connecting sub-piece 6 suspends the insulator ball head end 4. Protective thin plates 7 are also provided on both sides of the connecting sub-piece 6.

[0041] In the above embodiment, an external thread 42 is provided on the connecting rod 41 between the insulator ball head end 4 and the insulator. By connecting the connecting sub-piece 6 to the external thread 42, the suspension of the insulator ball head end 4 is realized.

[0042] Moreover, protective thin plates 7 are also provided on both sides of the connecting sub-piece 6 to protect the connecting fitting and the connecting component 5.

[0043] Embodiment 2

[0044] As Figures 1-4 shown, the connecting sub-piece 6 and the external thread 42 are connected through an annular connecting sleeve 61, and the annular connecting sleeve 61 is welded or integrally formed with the connecting sub-piece 6.

[0045] The connecting sub-piece 6 is bent by a wrench. Before the installation of the connecting sub-piece 6, it forms a 90° angle with the hanging plate main body 1. And the connecting sub-piece 6 is provided with a bending crease 62 corresponding to the part to be bent of the cross arm 2. The bending crease 62 is convenient for forming a bending angle with the hanging plate main body 1 before installation, which is convenient for installation.

[0046] The connecting component 5 includes a bolt 51 and a nut 52. By connecting the bolt 51 and the nut 52, the insulator ball head end 4 is installed at the suspension part 11, the hanging plate main body 1 and the connecting piece 3 are installed, and the connecting piece 3 and the cross arm 2 are installed.

[0047] The cross arm 2 is provided with a mounting hole 21 at the bending part of the corresponding connecting accessory 6 to be bent. A first connecting hole 63 is opened at the corresponding position of the connecting accessory 6 relative to the mounting hole 21. Then, the connecting accessory 6 is fixed by connecting the first connecting hole 63 and the mounting hole 21 with a bolt 51.

[0048] A second connecting hole 64 is opened at the screw part of the bolt 51 for installing the connecting member 3 and the cross arm 2 on the corresponding connecting accessory 6. The connecting accessory 6 is fixed by inserting the second connecting hole 64 onto the screw part of the bolt 51 and using a nut 52, so that a part of the connecting accessory 6 at the second connecting hole 64 is located between the nut 52 for installing the connecting member 3 and the cross arm 2 and the outer nut 52 outside the second connecting hole 64.

[0049] The thickness of the protective thin plate 7 is 1 - 3 mm, and its length extends from the ball head end 4 of the insulator to the part where it bends around the cross arm 2, covering the connection between the connecting member, the right-angle hanging plate, and the insulator installed on the cross arm. And this thickness facilitates adjustment and twisting with a wrench.

[0050] The installation process of the present utility model: Install the connecting member 3 on the cross arm 2, use the connecting assembly 5 to connect the hanging plate main body 1 and the connecting member 3, use the connecting assembly 5 (bolt 51 and nut 52) to install the ball head end 4 of the insulator at the hanging part 11 of the hanging plate main body 1, connect the connecting accessory 6 to the external thread 42 on the connecting rod 41 of the ball head end 4 of the insulator through the annular connecting sleeve 61, bend the bent part of the connecting accessory 6 to an angle suitable for the hanging plate main body 1 and the cross arm 2 with a wrench, align the first connecting hole 63 of the connecting accessory 6 with the mounting hole 21 of the cross arm 2, fix it with a bolt 51, insert the second connecting hole 64 of the connecting accessory 6 onto the screw part of the bolt 51 for installing the connecting member 3 and the cross arm 2, and fix it with a nut 52. The ball head end 4 of the insulator is suspended by the hanging plate main body 1. At the same time, the connecting accessory 6 connecting the ball head end 4 of the insulator is suspended by the cross arm 2, providing tension at the same time to connect the line.

[0051] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fitting for connecting a power transmission line, comprising a hanging plate main body (1), a cross arm (2), a connecting member (3), an insulator ball head end (4), and a plurality of groups of connecting components (5). The cross-section of the hanging plate body (1) is U-shaped. The bottom of the U-shape forms a hanging portion (11). Through holes (12) that are opposite and coaxial are formed at the tops of the two sides of the U-shape, forming an upper mounting portion (13). The insulator ball head end (4) is installed at the hanging portion (11) through the connecting component (5). The hanging plate main body (1) is clamped inside the connecting member (3). The hanging plate main body (1) and the connecting member (3) are installed by connecting the two through holes (12) through the connecting component (5). The connecting member (3) is installed on the cross arm (2) through the connecting component (5), and the cross arm (2) is located on a power system support facility. It is characterized in that: A connecting rod (41) between the ball head end (4) of the insulator and the insulator is provided with an external thread (42), and a connecting sub-component (6) is threadedly connected to the external thread (42). The connecting sub-component (6) extends from the top end of the hanging plate main body (1) to the top end of the connecting component (3), bends around the cross arm (2), and reaches the bottom of the hanging plate main body (1). The connecting sub-component (6) is connected to the cross arm (2) and the connecting component (5) at the through hole (12). By connecting to the cross arm (2), the connecting sub-component (6) suspends the ball head end (4) of the insulator. Protective thin plates (7) are also provided on both sides of the connecting sub-component (6).

2. The electrical power transmission line connection fitting according to claim 1, characterized in that: The connecting sub-component (6) is connected to the external thread (42) through an annular connecting sleeve (61), and the annular connecting sleeve (61) is welded or integrally formed with the connecting sub-component (6).

3. The connection fitting for a power transmission line according to claim 1, wherein: The connecting sub-component (6) is bent by a wrench and forms a 90° angle with the hanging plate main body (1) before the connecting sub-component (6) is installed. The connecting sub-component (6) is provided with a bending crease (62) corresponding to the part to be bent of the cross arm (2).

4. The electrical power transmission line connection fitting according to claim 1, wherein: The connecting component (5) includes a bolt (51) and a nut (52). By connecting the bolt (51) and the nut (52), the ball head end (4) of the insulator is installed at the hanging part (11), the hanging plate main body (1) is installed with the connecting component (3), and the connecting component (3) is installed with the cross arm (2).

5. The electrical power transmission line connection fitting according to claim 2, characterized in that: The cross arm (2) is provided with a mounting hole (21) corresponding to the part to be bent of the connecting sub-component (6). A first connecting hole (63) is provided on the connecting sub-component (6) corresponding to the mounting hole (21). Then, the first connecting hole (63) and the mounting hole (21) are connected by a bolt (51) to fix the connecting sub-component (6).

6. The electrical power transmission line connection fitting according to claim 2, characterized in that: A second connecting hole (64) is provided on the connecting sub-component (6) corresponding to the screw part of the bolt (51) for installing the connecting component (3) and the cross arm (2). The second connecting hole (64) is clamped onto the screw part of the bolt (51), and the connecting sub-component (6) is fixed by a nut (52), so that a part of the connecting sub-component (6) at the second connecting hole (64) is located between the nut (52) for installing the connecting component (3) and the cross arm (2) and the nut (52) outside the second connecting hole (64).

7. A kind of fitting for connecting a power transmission line according to claim 1, characterized in that: The thickness of the protective thin plate (7) is 1-3 millimeters, and the length extends from the ball head end (4) of the insulator to the part where it bends around the cross arm (2).

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