Cage type three-dimensional grounding device for power transmission line tower

Abstract

The utility model relates to the technical field of grounding equipment, and discloses a power transmission line tower cage type three-dimensional grounding device which comprises a fixing rod, a fixing ring is fixedly connected to the outside of the fixing rod, a grounding leg is fixedly connected to the top of the fixing ring, a grounding main line is fixedly connected to the outside of the fixing ring, and the grounding main line is fixedly connected to the top of the fixing ring. The electric transmission line tower cage type three-dimensional grounding device has the advantages that the distance between the grounding legs is adjusted to adapt to the specification of the electric transmission line tower, and safety protection is achieved through the guardrails; the limiting rods are matched with the connecting rods to adjust the positions between the fixing rods, so that the positions between the grounding legs are adjusted, and the problem that adjustment and adaptation cannot be carried out according to the specification of a power transmission line pole and the field excavation environment due to the fact that the size of an existing power transmission line pole tower cage type three-dimensional grounding device is fixed and cannot be adjusted is solved.

Description

Technical Field

[0001] This utility model relates to the field of grounding equipment technology, specifically to a cage-type three-dimensional grounding device for transmission line towers. Background Technology

[0002] Transmission line poles are supporting structures used to erect high-voltage cables. Grounding devices need to be installed on the poles to protect the transmission lines and poles from lightning. Generally, a ring-shaped trench is dug under the pole to bury a cage-type three-dimensional grounding device, thereby improving conductivity.

[0003] The prior art patent document with publication number CN211789589U provides a novel grounding device for transmission line towers. This device forms a square shape by connecting the grounding pipe and the first connecting pipe end to end. It has a simple structure, is easy to operate on site, and has strong versatility. It can meet the requirements for the renovation of grounding devices for transmission line towers and the construction of new lines.

[0004] However, the connection between the grounding pipe and the first connecting pipe is made by thread, which is cumbersome to install and the size is fixed and cannot be adjusted according to the specifications of the transmission line pole and the on-site excavation environment. Therefore, we propose a cage-type three-dimensional grounding device for transmission line poles. Utility Model Content

[0005] To address the shortcomings of existing technologies where the fixed and unadjustable dimensions of cage-type three-dimensional grounding devices for transmission line poles prevent adaptation to the specifications of transmission line poles and the on-site excavation environment, this utility model provides a cage-type three-dimensional grounding device for transmission line poles. This device has the advantages of adjusting the distance between grounding legs to adapt to the specifications of the transmission line poles and providing safety protection through guardrails.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cage-type three-dimensional grounding device for transmission line towers, comprising a fixed rod, a fixed ring fixedly connected to the outside of the fixed rod, a grounding leg fixedly connected to the top of the fixed ring, a grounding main line fixedly connected to the outside of the fixed ring, a grounding branch line fixedly connected to the outside of the grounding main line, a connecting rod rotatably connected to the outside of the fixed rod, a limit rod rotatably connected to the tail of the connecting rod, a support rod provided inside the fixed rod, and a guardrail fixedly connected to the outside of the support rod.

[0007] Preferably, the connecting rod has a through mounting groove inside, and a fixed shaft is provided inside the mounting groove. The limiting rod has a fixed groove inside that corresponds to the fixed shaft, and the fixed shaft is rotatably connected to the inside of the fixed groove.

[0008] Preferably, the guardrail has a through mounting groove inside, a fixing screw is fixedly connected inside the mounting groove, a mounting plate is rotatably connected to the outside of the fixing screw, and an extension rod is fixedly connected to the outside of the mounting plate.

[0009] Preferably, the guardrail is provided with a baffle on the outside, and the baffle has a limiting groove inside that corresponds to the extension rod. The extension rod is slidably connected inside the limiting groove, and a warning sign is provided on the outside of the baffle.

[0010] Preferably, four fixing rods are provided, four grounding main lines are provided corresponding to the fixing rods, and four sets of grounding branch lines are provided corresponding to the grounding main lines. The grounding branch lines can work with the grounding main lines to reduce the grounding resistance.

[0011] Preferably, pressure plates are provided at both ends of the fixed shaft, and the pressure plates abut against the outside of the connecting rod and the limiting rod, allowing the limiting rod to rotate relative to the connecting rod.

[0012] Preferably, the length of the limiting groove is greater than the length of the extension rod, the length of the baffle is less than the length of the guardrail, and the extension rod can move inside the limiting groove.

[0013] Beneficial effects:

[0014] 1. The cage-type three-dimensional grounding device for transmission line towers adjusts the position between the fixing rods by using limiting rods and connecting rods to adjust the position between the grounding legs. This allows for adaptability based on the specifications of the transmission line towers and the on-site excavation environment, and the device is fixed by being buried underground.

[0015] 2. This transmission line tower cage-type three-dimensional grounding device protects the external area of ​​the grounding device through structures such as support poles, guardrails and baffles, preventing pedestrians from coming into contact with the device, thus improving the safety of the device during use. It has a simple structure and is easy to install. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting rod structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the baffle structure of this utility model.

[0019] In the diagram: 1. Fixed rod; 2. Fixed ring; 3. Grounding leg; 4. Grounding main line; 5. Grounding branch line; 6. Connecting rod; 7. Limiting rod; 8. Fixed shaft; 9. Support rod; 10. Guardrail; 11. Fixed screw; 12. Mounting plate; 13. Extension rod; 14. Baffle; 15. Limiting groove; 16. Warning sign. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1-3 A cage-type three-dimensional grounding device for transmission line towers includes a fixed rod 1, a fixed ring 2 fixedly connected to the outside of the fixed rod 1, a grounding leg 3 fixedly connected to the top of the fixed ring 2, a grounding main line 4 fixedly connected to the outside of the fixed ring 2, a grounding branch line 5 fixedly connected to the outside of the grounding main line 4, a connecting rod 6 rotatably connected to the outside of the fixed rod 1, a limit rod 7 rotatably connected to the tail of the connecting rod 6, a support rod 9 provided inside the fixed rod 1, and a guardrail 10 fixedly connected to the outside of the support rod 9.

[0023] The connecting rod 6 has a through mounting groove inside, and a fixed shaft 8 is installed inside the mounting groove. The limiting rod 7 has a fixed groove inside that corresponds to the fixed shaft 8, and the fixed shaft 8 is rotatably connected to the inside of the fixed groove.

[0024] Among them, there are four fixed rods 1, four grounding main lines 4 corresponding to the fixed rods 1, and four sets of grounding branch lines 5 corresponding to the grounding main lines 4. The grounding branch lines 5 can work with the grounding main lines 4 to reduce the grounding resistance.

[0025] The fixed shaft 8 has pressure plates at both ends, which abut against the outside of the connecting rod 6 and the limiting rod 7. The limiting rod 7 can rotate relative to the connecting rod 6.

[0026] The length of the limiting groove 15 is greater than the length of the extension rod 13, the length of the baffle 14 is less than the length of the guardrail 10, and the extension rod 13 can move inside the limiting groove 15.

[0027] Working principle: When using the cage-type three-dimensional grounding device for transmission line poles, the position between the fixing rods 1 can be adjusted by using the limiting rod 7 in conjunction with the connecting rod 6, thereby adjusting the position between the grounding legs 3. This allows for adaptability based on the specifications of the transmission line pole and the on-site excavation environment. The device is fixed by burying it underground. That is, according to the position of the transmission line pole lead wire, a trench for the grounding device is excavated. At the same time, according to the specifications of the transmission line pole and the on-site excavation environment, the connecting rod 6 is installed at the tail of the fixing rod 1, and the limiting rod 7 is installed at the tail of the connecting rod 6 using the fixing shaft 8 to connect the fixed rod 1. Then, the backfilling is completed.

[0028] Example 2

[0029] Please see Figures 1-3 Furthermore, based on Embodiment 1, the guardrail 10 has a through mounting groove inside, a fixing screw 11 is fixedly connected inside the mounting groove, a mounting plate 12 is rotatably connected to the outside of the fixing screw 11, an extension rod 13 is fixedly connected to the outside of the mounting plate 12, a baffle 14 is provided on the outside of the guardrail 10, a limiting groove 15 corresponding to the extension rod 13 is provided inside the baffle 14, the extension rod 13 is slidably connected to the inside of the limiting groove 15, and a warning sign 16 is provided on the outside of the baffle 14.

[0030] Working principle: When used in the cage-type three-dimensional grounding device for transmission line towers, the external area of ​​the grounding device can be protected by structures such as support rods 9, guardrails 10 and baffles 14, preventing pedestrians from coming into contact with the device, thus improving the safety of the device during use. The structure is simple and easy to install.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cage-type three-dimensional grounding device for transmission line towers, comprising a fixed pole (1), characterized in that: The fixed rod (1) is fixedly connected to a fixed ring (2) on the outside. The top of the fixed ring (2) is fixedly connected to a grounding leg (3). The fixed ring (2) is fixedly connected to a grounding main line (4) on the outside. The grounding main line (4) is fixedly connected to a grounding branch line (5) on the outside. The fixed rod (1) is rotatably connected to a connecting rod (6). The tail of the connecting rod (6) is rotatably connected to a limit rod (7). The fixed rod (1) is provided with a support rod (9) inside. The support rod (9) is fixedly connected to a guardrail (10) on the outside.

2. The cage-type three-dimensional grounding device for transmission line towers according to claim 1, characterized in that: The connecting rod (6) has a through mounting groove inside, and a fixed shaft (8) is provided inside the mounting groove. The limiting rod (7) has a fixed groove corresponding to the fixed shaft (8) inside, and the fixed shaft (8) is rotatably connected to the inside of the fixed groove.

3. The cage-type three-dimensional grounding device for transmission line towers according to claim 1, characterized in that: The guardrail (10) has a through mounting groove inside, and a fixing screw (11) is fixedly connected inside the mounting groove. A mounting plate (12) is rotatably connected to the outside of the fixing screw (11), and an extension rod (13) is fixedly connected to the outside of the mounting plate (12).

4. A cage-type three-dimensional grounding device for transmission line towers according to claim 3, characterized in that: The guardrail (10) is provided with a baffle (14) on the outside. The baffle (14) has a limiting groove (15) corresponding to the extension rod (13) inside. The extension rod (13) is slidably connected to the inside of the limiting groove (15). The baffle (14) is provided with a warning sign (16) on the outside.

5. A cage-type three-dimensional grounding device for transmission line towers according to claim 1, characterized in that: There are four fixed rods (1), four grounding main lines (4) corresponding to the fixed rods (1), and four grounding branch lines (5) corresponding to the grounding main lines (4).

6. A cage-type three-dimensional grounding device for transmission line towers according to claim 2, characterized in that: Both ends of the fixed shaft (8) are provided with pressure plates, which abut against the outside of the connecting rod (6) and the limiting rod (7).

7. A cage-type three-dimensional grounding device for transmission line towers according to claim 4, characterized in that: The length of the limiting groove (15) is greater than the length of the extension rod (13), and the length of the baffle (14) is less than the length of the guardrail (10).

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