Electric power iron tower grounding down lead structure

Abstract

The utility model discloses an electric power iron tower grounding down lead structure, which comprises a grounding body, a sliding tube, a protection tube and flat steel, the sliding tube is fixedly arranged on the upper surface of the grounding body, a first lower lead is fixedly arranged in the upper end of the protection tube, a second lower lead is fixedly arranged in the lower end of the protection tube, and the flat steel is arranged in the first lower lead. The upper end of the first lower lead is fixedly provided with flat steel, and the surface, close to the lower end, of the protection tube is movably sleeved with a locking piece. According to the grounding downlead structure of the electric power tower, the locking piece is pulled up, so that the insertion rod of the locking piece moves upwards, and the spring is stretched when the locking piece is pulled upwards, so that after the fixing cap is installed, the external force for pulling the locking piece is loosened, and the spring downwards pulls the lantern ring of the locking piece, so that the locking piece descends, and the grounding downlead structure of the electric power tower is fixed. The locking piece is inserted into the positioning groove of the fixing cap until the inserting rod of the locking piece is inserted into the positioning groove of the fixing cap, so that the fixing cap can be limited and is prevented from being accidentally rotated and loosened, and the stability of connection between the second lower lead and the sliding pipe can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of earthing down conductors, and particularly relates to a structure of an earthing down conductor for a power transmission tower. Background Art

[0002] In power engineering, the earthing down conductor is a very important auxiliary facility, which plays a role in protecting power transmission and transformation equipment. The existing power transmission towers are all provided with corresponding earthing down conductor structures. The earthing down conductor structure of a power transmission tower generally includes a connecting flat steel and an earthing down conductor (round steel) fixed to the connecting flat steel, and is connected to an earthing body buried in the ground through the earthing down conductor.

[0003] However, there are some deficiencies in the earthing down conductor structure of the current power transmission tower. For example, the application number is 202022769235.0, which discloses "a structure of an earthing down conductor for a power transmission tower, relating to the field of earthing down conductor technology, including an earthing down conductor, a flat steel and an earthing body. The flat steel is used for fixing with the tower, the earthing body is fixed underground, the earthing down conductor includes a first down conductor and a second down conductor, the first down conductor is connected to the second down conductor and the two form an included angle, one end of the first down conductor away from the second down conductor is connected to the flat steel, a sliding tube is fixed on the earthing body, and one end of the second down conductor extends into the sliding tube and is slidably connected to the sliding tube. This application improves the convenience of operation for users". The fixing cap is threadedly connected to the sliding tube, but there is no limiting structure for the fixing cap after installation. When the fixing cap becomes loose, the stability of the installation of the second down conductor and the sliding tube cannot be guaranteed. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a structure of an earthing down conductor for a power transmission tower, which can effectively solve the problems in the background art.

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

[0006] A structure of an earthing down conductor for a power transmission tower includes an earthing body, a sliding tube, a protection tube and a flat steel. The sliding tube is fixedly installed on the upper surface of the earthing body. The first down conductor is fixedly installed inside the upper end of the protection tube, and the second down conductor is fixedly installed inside the lower end of the protection tube. The flat steel is fixedly installed at the upper end of the first down conductor. A locking member is movably sleeved on the surface of the protection tube near the lower end, and a fixing cap is threadedly installed at the upper end of the sliding tube.

[0007] Preferably, the locking member includes a collar, a plug rod, a guide rod and a spring. Lifting grooves are formed on both side surfaces inside the collar. The guide rod is fixedly installed inside the lifting groove. The spring is sleeved on the surface of the guide rod. The plug rod is fixedly installed on the lower surface of the collar.

[0008] Preferably, a through hole is formed in the upper surface of the fixing cap, a positioning groove is formed in the upper surface of the fixing cap near the edge position, and the diameter of the through hole is smaller than the inner diameter of the fixing cap.

[0009] Preferably, the number of the insertion rods and the positioning grooves is four, and the lower ends of the insertion rods are embedded in the positioning grooves.

[0010] Preferably, one end of the second lower lead extends into the inside of the sliding tube, and the other ends of the first lower lead and the second lower lead are connected to each other.

[0011] Preferably, sleeve blocks are fixedly installed on both sides of the surface of the protection tube near the lower end, the sleeve blocks are sleeved on the surface of the guide rod, the lower end of the spring is fixed to the sleeve block, and the upper end of the spring is fixed to the inner upper surface of the lifting groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, by means of the mutual cooperation of the locking member, the protection tube and the fixing cap, when installing the fixing cap, the locking member is pulled upwards, so that the insertion rod of the locking member moves upwards. When the locking member is pulled upwards, the spring will be stretched. Therefore, after the fixing cap is installed, when the external force for pulling the locking member is released, at this time, the spring will pull the collar of the locking member downwards, so that the locking member descends until the insertion rod of the locking member is inserted into the positioning groove of the fixing cap, so that the fixing cap can be limited to avoid accidental rotation and loosening of the fixing cap, and thus the stability of the connection between the second lower lead and the sliding tube can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structure diagram of a grounding downlead structure of a power transmission tower of the utility model;

[0015] Figure 2 is the partial disassembly schematic diagram of a grounding downlead structure of a power transmission tower of the utility model;

[0016] Figure 3 is the partial sectional view of the locking member of a grounding downlead structure of a power transmission tower of the utility model;

[0017] Figure 4 is the partial sectional view of the fixing cap of a grounding downlead structure of a power transmission tower of the utility model.

[0018] In the figure: 1, grounding body; 2, sliding tube; 3, locking member; 301, collar; 302, insertion rod; 303, lifting groove; 304, guide rod; 305, spring; 4, second lower lead; 5, first lower lead; 6, flat steel; 7, fixing cap; 701, through hole; 702, positioning groove; 8, protection tube; 801, sleeve block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] As Figures 1-4 shown, a grounding downlead structure of a power transmission tower includes a grounding body 1, a sliding tube 2, a protection tube 8 and a flat steel 6. A sliding tube 2 is fixedly installed on the upper surface of the grounding body 1. A first downlead 5 is fixedly installed inside the upper end of the protection tube 8, and a second downlead 4 is fixedly installed inside the lower end of the protection tube 8. A flat steel 6 is fixedly installed at the upper end of the first downlead 5. A locking member 3 is movably sleeved on the surface of the protection tube 8 near the lower end, and a fixing cap 7 is threadedly installed at the upper end of the sliding tube 2.

[0021] The locking member 3 includes a collar 301, a plug rod 302, a guide rod 304 and a spring 305. Lifting grooves 303 are formed on the inner surfaces of both sides of the collar 301. A guide rod 304 is fixedly installed inside the lifting grooves 303. A spring 305 is sleeved on the surface of the guide rod 304. A plug rod 302 is fixedly installed on the lower surface of the collar 301. The cooperation between the plug rod 302 and the positioning groove 702 can position the fixing cap 7 to prevent the fixing cap 7 from rotating and loosening. A through hole 701 is formed on the upper surface of the fixing cap 7, and a positioning groove 702 is formed on the upper surface of the fixing cap 7 near the edge position. The diameter of the through hole 701 is smaller than the inner diameter of the fixing cap 7. The number of the plug rod 302 and the positioning groove 702 is four, and the lower end of the plug rod 302 is embedded in the positioning groove 702. One end of the second downlead 4 extends into the sliding tube 2, and the other ends of the first downlead 5 and the second downlead 4 are connected to each other. Sleeve blocks 801 are fixedly installed on both sides of the surface of the protection tube 8 near the lower end. The sleeve blocks 801 are sleeved on the surface of the guide rod 304. The lower end of the spring 305 is fixed to the sleeve block 801, and the upper end of the spring 305 is fixed to the inner upper surface of the lifting groove 303. The spring 305 has a downward pulling force on the locking member 3.

[0022] It should be noted that the present utility model is a grounding downlead structure of a power transmission tower. When in use, when installing the fixing cap 7, the locking member 3 is pulled upward, so that the plug rod 302 of the locking member 3 moves upward. When the locking member 3 is pulled upward, the spring 305 will be stretched. Therefore, after the fixing cap 7 is installed, the external force for pulling the locking member 3 is released. At this time, the spring 305 will pull the collar 301 of the locking member 3 downward, so that the locking member 3 descends until the plug rod 302 of the locking member 3 is inserted into the positioning groove 702 of the fixing cap 7. In this way, the fixing cap 7 can be limited to prevent the fixing cap 7 from accidentally rotating and loosening, and thus the stability of the connection between the second downlead 4 and the sliding tube 2 can be ensured.

[0023] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A grounding downlead structure for a power transmission tower, characterized in that: It includes a grounding body (1), a sliding tube (2), a protection tube (8) and a flat steel (6). The sliding tube (2) is fixedly installed on the upper surface of the grounding body (1). A first downlead (5) is fixedly installed inside the upper end of the protection tube (8), and a second downlead (4) is fixedly installed inside the lower end of the protection tube (8). The flat steel (6) is fixedly installed at the upper end of the first downlead (5). A locking member (3) is movably sleeved on the surface of the protection tube (8) near the lower end, and a fixing cap (7) is threadedly installed at the upper end of the sliding tube (2).

2. The structure of the grounding downlead of a power transmission tower according to claim 1, characterized in that: The locking member (3) includes a collar (301), a plug rod (302), a guide rod (304) and a spring (305). Lifting grooves (303) are formed on the inner surfaces of both sides of the collar (301). The guide rod (304) is fixedly installed inside the lifting groove (303). The spring (305) is sleeved on the surface of the guide rod (304), and the plug rod (302) is fixedly installed on the lower surface of the collar (301).

3. The structure of the grounding downlead of a power transmission tower according to claim 2, characterized in that: A through hole (701) is formed on the upper surface of the fixing cap (7), and a positioning groove (702) is formed on the upper surface of the fixing cap (7) near the edge position. The diameter of the through hole (701) is smaller than the inner diameter of the fixing cap (7).

4. The structure of the grounding downlead of a power transmission tower according to claim 3, characterized in that: The number of the plug rods (302) and the positioning grooves (702) is four, and the lower end of the plug rod (302) is embedded in the positioning groove (702).

5. The structure of the grounding downlead of a power transmission tower according to claim 4, characterized in that: One end of the second downlead (4) extends into the sliding tube (2), and the other ends of the first downlead (5) and the second downlead (4) are connected to each other.

6. The structure of the grounding downlead of a power transmission tower according to claim 5, characterized in that: Sleeve blocks (801) are fixedly installed on both sides of the surface of the protection tube (8) near the lower end. The sleeve blocks (801) are sleeved on the surface of the guide rod (304). The lower end of the spring (305) is fixed to the sleeve block (801), and the upper end of the spring (305) is fixed to the inner upper surface of the lifting groove (303).

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