Cathode protection anti-corrosion downlead device

Abstract

The utility model relates to the technical field of lightning protection devices, in particular to a cathode protection anti-corrosion downlead device which comprises a wiring board and a downlead, a hollow shell is fixedly installed on the lower surface of the wiring board, a cathode protection tube is sleeved outside the downlead in a sliding mode, connecting rods are symmetrically and fixedly installed on the side wall of the top end of the cathode protection tube, and the connecting rods are connected with the wiring board. An insertion block is fixedly mounted at one end, far away from the cathode protection tube, of the connecting rod; mounting openings are symmetrically formed in the side walls of the hollow shell, sliding rods are vertically and fixedly mounted in the mounting openings, sliding plates are slidably connected to the sliding rods in a sleeving mode, a rectangular frame for insertion of an insertion block is fixedly mounted at one end of each sliding plate, supporting openings are symmetrically formed in the side walls of the bottom end of the hollow shell, and a rotating opening is horizontally formed in one end of each sliding plate; and a supporting part is arranged in the rotating opening. The cathode protection tube is arranged outside the down lead in a sliding and sleeving mode, and the cathode protection tube can be rapidly assembled and disassembled through cooperation between the insertion block and the rectangular frame.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection devices, in particular to a cathode protection and anti-corrosion down-lead device. Background Art

[0002] The grounding grid is an important protection device for transmission lines. It consists of a grounding down-lead and a grounding grid main body. The grounding down-lead provides a lightning current discharge channel, avoiding line tripping accidents caused by lightning strikes. In order to prevent the part of the grounding down-lead buried in the soil from easily undergoing electrochemical reactions, that is, corrosion phenomena, which affect the safe and stable operation of the grounding device, a cathode protection pipe is arranged outside the down-lead, thereby achieving the effect of protection and anti-corrosion.

[0003] Existing cathode protection pipes are usually welded outside the down-lead. If the cathode protection pipe needs to be replaced, the down-lead inside it also needs to be replaced, resulting in waste. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art: Existing cathode protection pipes are usually welded outside the down-lead. If the cathode protection pipe needs to be replaced, the down-lead inside it also needs to be replaced, resulting in waste. A cathode protection and anti-corrosion down-lead device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cathode protection and anti-corrosion down-lead device includes a wiring board and a down-lead fixedly installed on the lower surface of the wiring board. A cylindrical hollow shell is fixedly installed on the lower surface of the wiring board. The top end of the down-lead is located inside the hollow shell. A cathode protection pipe is slidably sleeved outside the down-lead. At the top end of the cathode protection pipe, connecting rods are symmetrically and fixedly installed on the side wall. One end of the connecting rod away from the cathode protection pipe is fixedly installed with an insertion block. A telescopic protection component is arranged at the top end of the cathode protection pipe;

[0007] Installation openings are symmetrically formed in the side wall of the hollow shell. A sliding rod is vertically and fixedly installed in the installation opening. A sliding plate is slidably sleeved on the sliding rod. The upper surface of the end of the sliding plate located inside the hollow shell is fixedly installed with a rectangular frame for the insertion block to insert into. Support openings are symmetrically formed in the side wall at the bottom end of the hollow shell. A rotation opening is horizontally formed at the end of the sliding plate located outside the hollow shell. A support component is arranged in the rotation opening. The support component includes a first rotating shaft, a support rod rotatably installed on the first rotating shaft, a U-shaped installation block, a second rotating shaft, and a support block fixedly installed on the surface of the installation block. The first rotating shaft is rotatably installed in the rotation opening. The second rotating shaft is rotatably installed in the installation block. One end of the support rod away from the first rotating shaft is rotatably installed on the second rotating shaft.

[0008] Preferably, the protection component includes a plurality of spring rods and an installation cylinder fixedly installed at the top ends of the plurality of spring rods. An annular groove is formed at the top end of the cathodic protection pipe, and the plurality of spring rods are vertically and fixedly installed in the annular groove.

[0009] Preferably, a falling prevention component is provided at the bottom of the hollow shell, and the falling prevention component is used to prevent the cathodic protection pipe from moving out of the hollow shell.

[0010] Preferably, the falling prevention component includes a baffle fixedly installed at the inner bottom of the hollow shell. A first through hole for the cathodic protection pipe to enter is formed on the surface of the baffle, and second through holes for two insertion blocks to enter are symmetrically formed on the surface of the baffle.

[0011] Preferably, when the two insertion blocks are respectively inserted into the two rectangular frames, the positions of the two insertion blocks do not correspond to the positions of the two second through holes.

[0012] Preferably, a friction layer is adhesively bonded to the upper surface of the baffle, and the material of the friction layer is rubber.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The cathodic protection pipe is slidably sleeved outside the downlead, and through the cooperation between the insertion blocks and the rectangular frames, the installation and disassembly of the cathodic protection pipe can be quickly completed, facilitating the replacement of the cathodic protection pipe. There is no need to replace the downlead when replacing the cathodic protection pipe, avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front three-dimensional structural schematic diagram of a cathodic protection and anti-corrosion downlead device proposed by the present utility model;

[0016] Figure 2 is a partial top three-dimensional structural schematic diagram of the hollow shell in a cathodic protection and anti-corrosion downlead device proposed by the present utility model;

[0017] Figure 3 is a partial three-dimensional structural schematic diagram of the top end of the cathodic protection pipe in a cathodic protection and anti-corrosion downlead device proposed by the present utility model;

[0018] Figure 4 is a three-dimensional split structural schematic diagram of the hollow shell in a cathodic protection and anti-corrosion downlead device proposed by the present utility model;

[0019] Figure 5 is Figure 1 an enlarged view of the structure at A in

[0020] In the figure: 1 wiring board, 2 downlead wire, 3 hollow shell, 4 cathodic protection tube, 5 insertion block, 6 installation opening, 7 sliding rod, 8 sliding plate, 9 rectangular frame, 10 support opening, 11 support rod, 12 installation block, 13 support block, 14 spring rod, 15 installation cylinder, 16 baffle plate, 17 first through opening, 18 second through opening. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present invention are only for the convenience of clear narration, rather than used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.

[0023] Refer to Figures 1 - 5 , a cathodic protection and anti-corrosion downlead wire device, including a wiring board 1 and a downlead wire 2 fixedly installed on the lower surface of the wiring board 1. A cylindrical hollow shell 3 is fixedly installed on the lower surface of the wiring board 1. The top end of the downlead wire 2 is located inside the hollow shell 3. A cathodic protection tube 4 is slidably sleeved outside the downlead wire 2. Connecting rods are symmetrically and fixedly installed on the side wall at the top end of the cathodic protection tube 4. An insertion block 5 is fixedly installed at the end of the connecting rod away from the cathodic protection tube 4. A telescopic protection component is provided at the top end of the cathodic protection tube 4. The protection component includes a plurality of spring rods 14 and an installation cylinder 15 fixedly installed at the top ends of the plurality of spring rods 14. An annular groove is opened at the top end of the cathodic protection tube 4. The plurality of spring rods 14 are vertically and fixedly installed in the annular groove. The installation cylinder 15 can protect the top end of the downlead wire 2, and the plurality of spring rods 14 can also play a certain role in buffering and shock absorption, reducing the influence of the external vibration force on the cathodic protection tube 4.

[0024] Installation openings 6 are symmetrically opened on the side wall of the hollow shell 3. A sliding rod 7 is vertically and fixedly installed in the installation opening 6. A sliding plate 8 is slidably sleeved on the sliding rod 7. A rectangular frame 9 for inserting the insertion block 5 is fixedly installed on the upper surface of the end of the sliding plate 8 located inside the hollow shell 3. Support openings 10 are symmetrically opened on the side wall at the bottom end of the hollow shell 3. A rotation opening is horizontally opened at the end of the sliding plate 8 located outside the hollow shell 3. A support component is provided in the rotation opening. The support component includes a first rotating shaft, a support rod 11 rotatably installed on the first rotating shaft, a U-shaped installation block 12, a second rotating shaft and a support block 13 fixedly installed on the surface of the installation block 12. The first rotating shaft is rotatably installed in the rotation opening. The second rotating shaft is rotatably installed in the installation block 12. The end of the support rod 11 away from the first rotating shaft is rotatably installed on the second rotating shaft.

[0025] After sleeving 4 sets of cathodic protection tubes 4 on the down conductor 2, at this time, the top of the installation cylinder 15 will abut against the lower surface of the wiring board 1. Then, control the cathodic protection tube 4 to rotate. After the two insertion blocks 5 respectively correspond to the positions of the two rectangular frames 9, at this time, control the two slide plates 8 to move upward on the two slide rods 7 respectively, and make the two support blocks 13 respectively inserted into the two support ports 10. At this time, the two insertion blocks 5 will respectively enter the two rectangular frames 9, and the two support rods 11 can respectively support the two slide plates 8 and the two rectangular frames 9, so as to fix the cathodic protection tube 4. When disassembly is required, only need to control the two support blocks 13 to move out of the two support ports 10 respectively, then the support for the two slide plates 8 can be released. Then, the slide plates 8 will move down to abut against the bottom wall of the installation port 6 under the action of their own gravity, and the two insertion blocks 5 will also move out of the two rectangular frames 9 respectively. At this time, the installation of the cathodic protection tube 4 is released.

[0026] At the same time, after the two support rods 11 respectively support the two slide plates 8, by controlling the vertical movement of the cathodic protection tube 4, the multiple spring rods 14 are telescoped, and the two insertion blocks 5 on the side wall at the top end of the cathodic protection tube 4 respectively enter and exit the two rectangular frames 9, and the disassembly and assembly of the cathodic protection tube 4 can also be quickly completed. That is, the installation and disassembly of the cathodic protection tube 4 can be completed in multiple ways, avoiding the situation where the disassembly and assembly of the cathodic protection tube 4 cannot be quickly completed when the slide plate 8 is damaged and cannot move vertically.

[0027] An anti-falling component is provided at the bottom of the hollow shell 3. The anti-falling component is used to prevent the cathodic protection tube 4 from moving out of the hollow shell 3. The anti-falling component includes a baffle 16 fixedly installed at the inner bottom of the hollow shell 3. A first through hole 17 for the cathodic protection tube 4 to enter is provided on the surface of the baffle 16. Second through holes 18 for the two insertion blocks 5 to enter are symmetrically provided on the surface of the baffle 16. When the two insertion blocks 5 are respectively inserted into the two rectangular frames 9, the positions of the two insertion blocks 5 do not correspond to the positions of the two second through holes 18.

[0028] When the insertion block 5 moves out of the rectangular frame 9 under the influence of an external vibration force, at this time, the cathodic protection tube 4 will move down. However, due to the blocking of the baffle 16, the cathodic protection tube 4 will not move out of the hollow shell 3, that is, the downward movement distance is certain, avoiding the situation that after the locking of the cathodic protection tube 4 is released non-actively, the cathodic protection tube 4 will move out of the hollow shell 3, resulting in the disappearance of the protection effect on the down conductor 2. Only when the cathodic protection tube 4 rotates until the two insertion blocks 5 respectively correspond to the positions of the two second through holes 18, the cathodic protection tube 4 will move out of the hollow shell 3.

[0029] The upper surface of the baffle 16 is adhesively bonded with a friction layer, and the material of the friction layer is rubber. The rubber friction layer has good elasticity and viscosity. After the locking of the cathodic protection tube 4 is not actively released, when the two inserts 5 on the side wall of the cathodic protection tube 4 move downward to contact the baffle 16, the friction force between the contact surfaces of the inserts 5 and the baffle 16 can be increased, avoiding the rotation of the cathodic protection tube 4 affected by the external vibration force, so that the two inserts 5 move to correspond to the positions of the two second through holes 18 respectively.

[0030] In the present utility model, in the initial state, the lower surfaces of the two sliding plates 8 will respectively contact the inner bottom walls of the two mounting ports 6. After the cathodic protection tube 4 is sleeved on the downlead 2, the cathodic protection tube 4 is controlled to rotate so that the two inserts 5 respectively correspond to the positions of the two rectangular frames 9. At this time, the two sliding plates 8 are controlled to move upward on the two sliding rods 7 respectively, and the two support blocks 13 are respectively inserted into the two support ports 10. At this time, the two inserts 5 will respectively enter the two rectangular frames 9, and the two support rods 11 can respectively support the two sliding plates 8 and the two rectangular frames 9, thus achieving the effect of fixing the cathodic protection tube 4. At this time, the cathodic protection tube 4 cannot move downward or rotate. When disassembly is required, only by controlling the two support blocks 13 to move out of the two support ports 10 respectively, the support for the two sliding plates 8 can be released. Then the sliding plates 8 will move downward under the action of their own gravity to abut against the bottom wall of the mounting port 6, and the two inserts 5 will also move out of the two rectangular frames 9 respectively. At this time, the installation of the cathodic protection tube 4 is released. The cathodic protection tube 4 is slidably sleeved outside the downlead 2, and the installation and disassembly of the cathodic protection tube 4 can be quickly completed, facilitating the replacement of the cathodic protection tube 4 without the need to replace the downlead 2 when replacing the cathodic protection tube 4, avoiding waste of resources.

[0031] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense.

[0032] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacement or change, and should be covered by the protection scope of the present utility model.

Claims

1. A cathodic protection anti-corrosion down conductor device, comprising a terminal block (1) and a down conductor (2) fixedly mounted on the lower surface of the terminal block (1), characterized in that: A cylindrical hollow shell (3) is fixedly mounted on the lower surface of the terminal block (1), the top end of the down conductor (2) is located in the hollow shell (3), a cathode protection tube (4) is provided on the outer sliding sleeve of the down conductor (2), a connecting rod is symmetrically fixedly mounted on the side wall at the top end of the cathode protection tube (4), an insert (5) is fixedly mounted on the end of the connecting rod away from the cathode protection tube (4), and a retractable protective component is provided at the top end of the cathode protection tube (4); The side wall of the hollow shell (3) is symmetrically provided with an installation opening (6), a sliding rod (7) is vertically fixedly installed in the installation opening (6), a sliding plate (8) is slidably sleeved on the sliding rod (7), a rectangular frame (9) for inserting the plug block (5) is fixedly installed on the upper surface of one end of the sliding plate (8) located in the hollow shell (3), a supporting opening (10) is symmetrically provided on the side wall at the bottom end of the hollow shell (3), a rotating opening is horizontally provided on one end of the sliding plate (8) located outside the hollow shell (3), a supporting component is provided in the rotating opening, the supporting component comprises a first rotating shaft, a supporting rod (11) rotatably installed on the first rotating shaft, a U-shaped mounting block (12), a second rotating shaft and a supporting block (13) fixedly installed on the surface of the mounting block (12), the first rotating shaft is rotatably installed in the rotating opening, the second rotating shaft is rotatably installed in the mounting block (12), and the end of the supporting rod (11) away from the first rotating shaft is rotatably installed on the second rotating shaft.

2. A cathodic protection anti-corrosion down conductor device according to claim 1, characterized in that: The protection component comprises a plurality of spring rods (14) and a mounting tube (15) fixedly mounted on the top ends of the plurality of spring rods (14); an annular groove is provided on the top end of the cathode protection tube (4); and the plurality of spring rods (14) are vertically fixedly mounted in the annular groove.

3. A cathodic protection anti-corrosion down conductor device according to claim 1, characterized in that: An anti-drop assembly is provided at the bottom of the hollow shell (3), and the anti-drop assembly is used to prevent the cathode protection tube (4) from moving out of the hollow shell (3).

4. A cathodic protection anti-corrosion down conductor device according to claim 3, characterized in that: The anti-fall assembly comprises a baffle (16) fixedly mounted on the bottom of the hollow shell (3), the surface of the baffle (16) being provided with a first through-hole (17) for the cathode protection tube (4) to enter, and the surface of the baffle (16) being symmetrically provided with second through-holes (18) for the two plug-in blocks (5) to enter.

5. A cathodic protection anti-corrosion down conductor device according to claim 4, characterized in that: When the two inserting blocks (5) are respectively inserted into the two rectangular frames (9), the positions of the two inserting blocks (5) do not correspond to the positions of the two second through openings (18).

6. A cathodic protection anti-corrosion down conductor device according to claim 4, characterized in that: A friction layer is bonded to the upper surface of the baffle (16), and the material of the friction layer is rubber.

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