A fixing device for ground down lead of power transmission line
By using the mating end sleeve and fastening bolt structure between the conductive flat steel and the grounding pin, the problem of loose connection between the flat steel and the pin in the grounding down conductor device is solved, achieving a stable and reliable electrical connection and improving the safety and reliability of the transmission line.
Patent Information
- Application Number
- CN202522467092.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-20
AI Technical Summary
In existing power transmission line grounding down conductor devices, the connection between the flat steel and the pin is prone to loosening due to the tightening of the nut, resulting in poor contact and open circuit, and poor operational reliability.
The structure employs a conductive flat steel and grounding pin mating end sleeve and fastening bolt structure. Through the fitting of the mating end sleeve and the mating end head and the locking of the fastening bolt, axial locking and limiting are achieved, increasing the conductive contact area and preventing loosening.
This improves the operational stability and safety of the device, reduces the risk of loosening, circuit breakage, and poor contact, and enhances reliability and safety.
Smart Images
Figure CN224935003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transmission line installation technology, specifically to a device for fixing the grounding down conductor of a power transmission line. Background Technology
[0002] In the construction and operation of power transmission lines, the grounding down conductor plays a crucial role. During operation, the grounding conductor is directly connected to the ground and can also be called the safety return line. In dangerous situations, it safely introduces the high-voltage charge of electrical equipment or towers into the ground to ensure the stable operation of the power system and the safety of personnel and equipment.
[0003] To connect to the ground, the lower flat steel end of the lead wire needs to be connected to the pin structure during installation. For the butt joint installation of the end, existing lead wire devices mostly use a bolt-tightening limiting structure. During operation, because the connection between the flat steel and the pin relies solely on the nut for tightening, there is axial movement space. During operation, the nut structure at the installation point is prone to loosening due to structural movement, leading to poor contact, open circuit, and poor reliability of the conductive part. Therefore, a fixing device for the grounding lead wire of transmission lines is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a device for fixing the grounding down conductor of a power transmission line, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for fixing grounding down conductors of transmission lines, comprising a conductive flat steel and a grounding pin, wherein the conductive flat steel is in the shape of a flat strip, and a mating end sleeve is provided at the lower part of the conductive flat steel, the conductive flat steel is fitted and installed with the mating end provided at the upper part of the grounding pin through the mating end sleeve, and a fastening bolt for locking and limiting the mating end is provided at the upper part of the mating end sleeve; The upper rear part of the conductive flat steel is provided with a wire connector, and the front part of the wire connector is equipped with a limit bolt.
[0006] Preferably, the grounding pin is cylindrical, with a plug tip at the bottom and a support plate fixed at the top.
[0007] Preferably, the aforementioned mating end is integrally fixedly installed on the upper end of the grounding pin, and both the upper and lower ends of the conductive flat steel are bent. The mating end sleeve is integrally fixedly installed on the lower part of the lower bent portion of the conductive flat steel.
[0008] Preferably, the aforementioned mating end sleeve has a mating opening in the middle, and the mating end sleeve is fitted onto the upper part of the mating end head through the mating opening.
[0009] Preferably, the inner circumference of the aforementioned mating sleeve is uniformly provided with limiting grooves, and the outer circumference of the mating end is uniformly fixed with limiting protrusions. After installation, the limiting protrusions and limiting grooves are aligned and fitted together.
[0010] Preferably, a fastening screw hole is provided in the middle of the aforementioned mating end, the bolt end of the fastening stud passes through the mating end sleeve and is threaded into the fastening screw hole, and a protective cap is fitted on the upper nut end of the fastening stud.
[0011] Preferably, the conductive flat steel is fixedly fitted with an insulating sleeve in the middle, and a mounting bracket is fixedly provided on the rear side of the conductive flat steel, with a mounting screw hole in the middle of the mounting bracket.
[0012] Preferably, the aforementioned wire connector is integrally fixedly installed on the rear part of the upper bent part of the conductive flat steel. The middle part of the wire connector has a vertical through-hole for wiring. A limit screw hole is opened at the front side of the wiring slot. The threaded end of the limit bolt is installed on the inner side of the limit screw hole.
[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: This lead wire fixing device adopts an end sleeve type end docking structure. A docking end sleeve is installed on the lower docking side of the conductive flat steel. During installation, the conductive flat steel is aligned and sleeved with the docking end of the grounding pin through the docking end sleeve. The docking end sleeve and the docking end are aligned and fitted through the groove structure. While realizing the sleeve docking, it can also realize the axial locking limit between the grounding pin and the docking side of the conductive flat steel. With the fastening of the fastening bolt, it can prevent loosening at the docking point due to relative movement, which greatly improves the working stability of the device.
[0014] The mating end is fitted and installed with the mating end sleeve through the groove structure of the ring, which can effectively increase the conductive contact area between the conductive flat steel and the grounding pin, reduce the risk of loosening and open circuit at the mating point, poor contact and arcing, and greatly improve the reliability and safety of the device. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall installation front structure of this utility model; Figure 2 This is a schematic diagram of the overall installation rear structure of this utility model; Figure 3 This is a schematic diagram of the front structure of the wire connector and the limiting bolt of this utility model. Figure 4 This is a schematic diagram of the wire connector and limiting bolt structure after installation of this utility model. Figure 5 A schematic diagram of the upper structure of the grounding pin of this utility model during operation; Figure 6 This is a schematic diagram of the lower structure of the grounding pin of this utility model.
[0017] Explanation of reference numerals in the attached diagram: 1. Conductive flat steel; 2. Grounding pin; 3. Mounting bracket; 4. Wire connector; 5. Limiting bolt; 6. Insulating sleeve; 7. Connecting end; 8. Connecting end sleeve; 9. Fastening bolt; 10. Protective cap; 11. Support plate. 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] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0020] Example
[0021] Please see Figure 1-6 This utility model provides a technical solution: a fixing device for grounding down conductors of transmission lines, including a conductive flat steel 1 and a grounding pin 2, wherein the grounding pin 2 is used for the conduction of current between the ground and the earth, as shown in the attached figure. Figure 5 As shown, the grounding pin 2 is a cylindrical metal post. To facilitate insertion and installation, a plug tip is provided at the lower part of the grounding pin 2. To facilitate the installation and positioning of the grounding pin 2, a support plate 11 is fixed at the upper part of the grounding pin 2.
[0022] Conductive flat steel 1 is a flat strip of galvanized low-carbon steel used for current transmission and guidance. For easy connection and installation, see attached... Figure 1As shown, both the upper and lower ends of the conductive flat steel 1 are bent. To improve the leakage protection characteristics of the middle part of the conductive flat steel 1, an insulating sleeve 6 is fixedly fitted in the middle of the conductive flat steel 1. To facilitate the support and installation of the conductive flat steel 1, a mounting bracket 3 is fixedly installed on the rear side of the conductive flat steel 1. The mounting bracket 3 has a mounting screw hole in the middle. To facilitate the docking installation with the grounding pin 2, a docking end sleeve 8 is provided at the lower part of the conductive flat steel 1. The docking end sleeve 8 is a copper end sleeve and is integrally fixedly installed at the lower bent part of the conductive flat steel 1. The conductive flat steel 1 is installed with the docking end 7 provided on the upper part of the grounding pin 2 through the docking end sleeve 8, as shown in the attached figure. Figure 5 As shown, the mating end 7 is integrally fixedly installed on the upper end of the grounding pin 2. The mating end sleeve 8 has a mating opening in the middle. The mating end sleeve 8 is fitted onto the upper part of the mating end 7 through the mating opening. The mating end is fitted with an end sleeve type. The mating end sleeve 8 is installed on the lower mating side of the conductive flat steel 1. During installation, the conductive flat steel 1 is aligned and fitted with the mating end 7 at the upper end of the grounding pin 2 through the mating end sleeve 8. The mating end sleeve 8 and the mating end 7 are aligned and fitted together through the slot structure. While realizing the mating, the axial locking limit of the mating side of the grounding pin 2 and the conductive flat steel 1 can be realized. With the fastening and locking of the fastening bolt 9, the loosening of the mating point due to relative movement can be avoided, which greatly improves the working stability of the device.
[0023] To achieve axial positioning, a positioning groove is evenly opened on the inner circumference of the mating sleeve, and a positioning protrusion is evenly fixed on the outer circumference of the mating end 7. After installation, the positioning protrusion and the positioning groove are aligned and fitted together. The mating end 7 is fitted and installed with the mating end sleeve 8 through the groove structure of the ring. This can effectively increase the conductive contact area between the conductive flat steel 1 and the grounding pin 2, reduce the risk of loosening and opening circuit at the joint, poor contact and arcing, and greatly improve the reliability and safety of the device. In order to achieve locking and positioning of the mating end sleeve 8 after installation, a fastening bolt 9 for locking and positioning of the mating end 7 is provided on the upper part of the mating end sleeve 8. A fastening screw hole is opened in the middle of the mating end 7. The bolt end of the fastening bolt 9 passes through the mating end sleeve 8 and is threaded into the fastening screw hole. In order to achieve installation protection on the upper part of the fastening bolt 9, a plastic protective cap 10 is fitted on the upper nut end of the fastening bolt 9.
[0024] To facilitate the connection and installation of grounding cables, see attached... Figure 4As shown, a wire connector 4 is provided at the upper rear of the conductive flat steel 1. The wire connector 4 is made of copper and is integrally fixedly installed at the rear of the upper bent part of the conductive flat steel 1. In order to facilitate the butt joint installation of the grounding cable core, a wiring slot for inserting the grounding cable core is vertically opened in the middle of the wire connector 4. In order to achieve the limiting and locking of the grounding cable core, a limiting bolt 5 is installed at the front of the wire connector 4. In order to facilitate the connection and installation of the limiting bolt 5, a limiting screw hole is opened at the front of the wiring slot. The bolt end of the limiting bolt 5 is threaded and installed inside the limiting screw hole. The locking and limiting of the grounding cable after installation is completed by the abutting and pressing of the bolt end of the limiting bolt 5.
[0025] Working principle or structural principle: The grounding pin 2 is pre-embedded on the ground side. During installation, the mating angle of the conductive flat steel 1 is adjusted so that the rear of the conductive flat steel 1 is parallel and in contact with the wall. Then, the mating end sleeve 8 at the lower part of the conductive flat steel 1 is aligned and fitted with the mating end 7 at the upper end of the grounding pin 2. Then, the fastening bolt 9 is installed into the fastening screw hole at the upper part of the mating end 7. Finally, the mating end sleeve 8 and the mating end 7 are locked by screwing. Finally, the protective cap 10 is aligned and fitted. Install the nut end of the fastening bolt 9 to complete the docking installation of the conductive flat steel 1 and the upper end of the grounding pin 2. After adjusting the position of the conductive flat steel 1, use the mounting bracket 3 to tighten the bolt connection and install the conductive flat steel 1 on the upper part of the wall by tightening the bolt. After completion, strip the end of the grounding cable and then insert the conductive end of the grounding cable into the inside of the wiring slot. Then, from the front, use the limit bolt 5 to press and lock the installed conductive end to complete the installation of the device. During operation, when the equipment leaks current, the leaked current is conducted to the conductive flat steel 1 through the grounding cable. Then, the current is guided to the grounding pin 2 through the conductive flat steel 1, and the current is safely introduced to the ground through the grounding pin 2. During operation, the mating end sleeve 8 and the mating end 7 are aligned and fitted together through the groove structure. While realizing the mating, the axial locking limit of the mating side of the grounding pin 2 and the conductive flat steel 1 can also be realized. With the fastening and locking of the fastening bolt 9, it can prevent the mating point from loosening due to relative movement. Furthermore, the mating end 7 is fitted and installed with the mating end sleeve 8 through the groove structure of the ring, which can effectively increase the conductive contact area between the conductive flat steel 1 and the grounding pin 2, and reduce the risk of loosening, open circuit, poor contact and arcing at the mating point.
[0026] In summary, this lead fixing device adopts an end-sleeve type end-connection structure. A connecting end sleeve 8 is installed on the lower connecting side of the conductive flat steel 1. During installation, the conductive flat steel 1 is aligned and sleeved with the connecting end 7 at the upper end of the grounding pin 2 through the connecting end sleeve 8. The connecting end sleeve 8 and the connecting end 7 are aligned and fitted through the groove structure. While realizing the sleeve connection, it can also realize the axial locking limit of the grounding pin 2 and the connecting side of the conductive flat steel 1. With the fastening and locking of the fastening bolt 9, it can prevent loosening at the connection due to relative movement, which greatly improves the working stability of the device. The connecting end 7 is fitted and connected with the connecting end sleeve 8 through the groove structure of the ring, which can effectively increase the conductive contact area between the conductive flat steel 1 and the grounding pin 2, reduce the risk of loosening and open circuit at the connection, poor contact and arcing, and greatly improve the working reliability and safety of the device.
[0027] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A device for fixing grounding down conductors of transmission lines, comprising conductive flat steel (1) and grounding pin (2), characterized in that, The conductive flat steel (1) is a flat strip. The lower part of the conductive flat steel (1) is provided with a mating end sleeve (8). The conductive flat steel (1) is installed with the mating end (7) provided on the upper part of the grounding pin (2) through the mating end sleeve (8). The upper part of the mating end sleeve (8) is provided with a fastening bolt (9) for locking and limiting the mating end (7). The upper rear part of the conductive flat steel (1) is provided with a wire connector (4), and the front part of the wire connector (4) is equipped with a limit bolt (5).
2. The device for fixing the grounding down conductor of a transmission line according to claim 1, characterized in that, The grounding pin (2) is cylindrical, and the lower part of the grounding pin (2) is provided with a plug tip. The upper part of the grounding pin (2) is fixed with a support plate (11).
3. A device for fixing grounding down conductors of transmission lines according to claim 2, characterized in that, The docking end (7) is integrally fixedly installed on the upper end of the grounding pin (2), and both the upper and lower ends of the conductive flat steel (1) are bent. The docking end sleeve (8) is integrally fixedly installed on the lower part of the lower bent part of the conductive flat steel (1).
4. A device for fixing grounding down conductors of transmission lines according to claim 3, characterized in that, The docking end sleeve (8) is provided with a docking opening in the middle, and the docking end sleeve (8) is fitted onto the upper part of the docking end head (7) through the docking opening.
5. A device for fixing grounding down conductors of transmission lines according to claim 4, characterized in that, The inner circumference of the mating sleeve is uniformly provided with a limiting groove, and the outer circumference of the mating end (7) is uniformly fixed with a limiting protrusion. After installation, the limiting protrusion and the limiting groove are aligned and fitted together.
6. A device for fixing the grounding down conductor of a transmission line according to claim 5, characterized in that, The middle part of the docking end (7) is provided with a fastening screw hole, the bolt end of the fastening bolt (9) passes through the docking end sleeve (8) and is threaded with the fastening screw hole, and the upper nut end of the fastening bolt (9) is fitted with a protective cap (10).
7. A device for fixing grounding down conductors of transmission lines according to claim 1, characterized in that, An insulating sleeve (6) is fixedly fitted in the middle of the conductive flat steel (1), and an mounting seat (3) is fixedly provided on the rear side of the conductive flat steel (1). A mounting screw hole is provided in the middle of the mounting seat (3).
8. A device for fixing grounding down conductors of transmission lines according to claim 7, characterized in that, The wire connector (4) is integrally fixedly installed on the rear part of the upper bent part of the conductive flat steel (1). The middle part of the wire connector (4) is vertically through and has a wiring slot. The front part of the wiring slot has a limit screw hole. The bolt end of the limit bolt (5) is threaded and installed on the inner side of the limit screw hole.