Waterproof structure of cable grounding box and installation method

Abstract

The invention relates to a cable grounding box waterproof structure which comprises a grounding box body, the grounding box body comprises an electrical area, an electrical chamber and a sealing chamber are arranged in the electrical area, the sealing chamber is located below the electrical chamber, a plurality of cable holes are formed in the lower surface of the grounding box, and the cable holes sequentially penetrate through the sealing chamber and the electrical chamber. And a sealing ring is arranged in the cable hole. The sealing performance of the cable hole in the grounding box is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cable grounding equipment, and in particular to a waterproof structure and installation method of a cable grounding box. Background Art

[0002] The cable grounding box is a device used for the protective grounding of the cable sheath. It is mainly responsible for providing a grounding connection for the cable line to ensure that the current can flow safely into the earth in the event of a fault, thereby preventing accidents such as electrical fires and electric shocks. The design of the cable grounding box is based on electrical safety and grounding theory and is an important part of the power system.

[0003] At present, the threading position on the cable grounding box is generally sealed by an elastic sealing ring. After long-term use, the sealing ring is prone to aging and wear, and it is difficult for staff to find it, resulting in poor sealing effect. Especially in some outdoor areas with heavy humidity, after the sealing ring at the connection hole is aged, water vapor can easily enter the cable grounding box and cause failure. Summary of the invention

[0004] In order to improve the problem that the wear of the cable holes in the current cable grounding box is not discovered in time, it is easy for water vapor to enter the grounding box. The present application provides a cable grounding box waterproof structure, a cable grounding box waterproof structure, including a grounding box body, characterized in that: the grounding box body includes an electrical area, an electrical room and a sealing room are arranged in the electrical area, the sealing room is located below the electrical room, a plurality of cable holes are opened on the lower surface of the grounding box body, the cable holes pass through the sealing room and the electrical room in sequence, and a sealing ring is arranged in the cable hole.

[0005] By adopting the above solution, when the sealing ring is aged and worn, the outside air is blocked by the sealing liquid, and the moist air cannot enter the electrical room. In addition, as the sealing ring is aged and worn, the sealing liquid will gradually flow downwards. In this way, the staff only needs to observe whether there is leakage under the grounding box during regular inspections to quickly and conveniently check the working condition of the sealing ring.

[0006] Furthermore, a liquid level detector is provided in the sealed chamber.

[0007] By adopting the above solution, the liquid level detector will feed back the sealing liquid level in the sealing chamber to the central control system in real time. When the liquid level detector detects that the sealing liquid level in the sealing chamber is reduced, it means that the sealing liquid is leaking, and the sealing ring needs to be replaced.

[0008] Furthermore, the box body is also provided with a storage area, a storage chamber is provided in the storage area, a connecting hole is provided between the storage chamber and the sealed chamber, and a connection switch is provided at the connecting hole; The connection switch includes a storage box disposed in the storage chamber, and the storage box is connected to the sealed chamber via a transition hose; It also includes a driving assembly for driving the storage box to rise and fall.

[0009] By adopting the above solution, when inspecting the cable hole, the sealing liquid can be recovered into the storage box by lowering the height of the storage box, which facilitates the inspection of the cable hole.

[0010] Furthermore, the grounding box body is provided with a liquid injection port connected to the storage chamber, the storage box is provided with a liquid inlet, a connecting hard pipe and a connecting hose are provided between the liquid injection port and the liquid inlet, the connecting hose and the connecting hard pipe are sleeved together and slidably connected, and the connecting hard pipe is fixedly connected to the liquid injection port or the liquid inlet; When the connecting hard tube is fixedly connected to the liquid injection port, the connecting hose is fixedly connected to the liquid inlet; When the connecting hose is fixedly connected to the liquid injection port, the connecting hard tube is fixedly connected to the liquid inlet.

[0011] By adopting the above solution, it is convenient to add the sealing liquid into the storage box through the liquid injection port, the connecting hard pipe, the connecting hose and the liquid inlet.

[0012] Furthermore, the connecting hard tube is fixedly connected to the liquid injection port, and the connecting hose is fixedly connected to the liquid inlet.

[0013] By adopting the above solution, since the connecting hose moves along the connecting hard pipe, the connecting hard pipe can have a certain guiding effect on the movement of the connecting hose, so that the movement of the storage box is smoother.

[0014] Furthermore, the connecting hose is sleeved onto the periphery of the connecting hard pipe.

[0015] By adopting the above solution, since the connecting hose is sleeved on the periphery of the connecting hard tube, the sealing liquid can smoothly flow from the liquid injection port to the liquid inlet port and then enter the storage box without leaking.

[0016] Furthermore, a filling chamber is provided below the electrical room in the electrical area, the cable hole passes through the filling chamber, and an outer side wall of the grounding box body is provided with a filling hole connected to the filling chamber.

[0017] By adopting the above solution and injecting the expansion agent into the filling hole, the cable hole is sealed three times.

[0018] Further, the filling chamber is located below the storage chamber.

[0019] By adopting the above solution, the filling chamber can not only improve the sealing effect of the cable hole, but also provide a certain degree of protection for the sealing chamber, thereby reducing the leakage of the sealing liquid as much as possible.

[0020] Further, the track is a rod-shaped structure; The connecting member comprises a connecting part 1 and a connecting part 2, the connecting part 1 is provided with a connecting hole 1, the track passes through the connecting hole 1, the connecting part 2 is provided with a connecting hole 2, the screw passes through the connecting hole 2; The first connecting part is provided with a connecting cavity connected with the first connecting hole, the second connecting part is provided with a groove aligned with the connecting cavity, the groove is provided with an adsorption member, the connecting cavity is slidably connected with a positioning member, one end of the positioning member is fixedly connected with the first electromagnet, the other end of the positioning member is fixedly connected with the second electromagnet, the first electromagnet extends into the groove and is adsorbed and fixed with the adsorption member; An adsorption strip used in conjunction with the second electromagnet is vertically arranged on the track.

[0021] By adopting the above scheme, under normal working conditions, the first electromagnet on the positioning member extends into the groove and is fixed to the adsorption member, and the motor drives the screw to rotate to realize the lifting and lowering of the storage box. When the motor or the screw fails, the positioning member can be moved away from the adsorption member to make the positioning member disengage from the groove, and the height of the storage box can be adjusted manually. After the adjustment is completed, the second electromagnet 632 is adsorbed to the adsorption bar, and the position of the storage box is fixed by friction.

[0022] In summary, the present invention has at least the following beneficial effects: 1. By setting a sealing chamber on the grounding box, the sealing chamber can be filled with sealing liquid, and a liquid level detector is set in the sealing chamber. Even if the sealing of the cable hole is damaged, external water vapor will not immediately enter the electrical room. At the same time, due to the setting of the liquid level detector, people can promptly discover the sealing problem of the cable hole, so that the staff can carry out timely maintenance.

[0023] 2. A storage room is provided on the grounding box, a storage box is provided in the storage room, and the storage box is connected to the sealing room through a transition hose. During the inspection and maintenance of the cable hole, the sealing liquid can be recovered into the storage box, which is convenient for the inspection and maintenance of the cable hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram showing the overall structure of the grounding box in this embodiment; Figure 2 This is a schematic diagram showing the arrangement structure of the sealing chamber, the filling chamber, and the storage chamber on the grounding box body in this embodiment; Figure 3 is a schematic diagram showing the structure of the connecting piece in this embodiment; Figure 4 It is a schematic diagram showing the internal structure of the connecting piece in this embodiment.

[0025] Description of reference numerals: 1. Grounding box body; 11. Ear plate; 12. Cable hole; 13. Liquid filling port; 131. Cover; 14. Connecting hard pipe; 15. Connecting port; 16. Closed door; 2. Electrical area; 21. Electrical room; 22. Sealed room; 23. Opening; 24. Sealed door; 25. Filling room; 26. Filling hole; 3. Storage area; 31. Storage room; 311. Liquid hole; 312. Liquid level detector; 4. Connecting switch; 41. Storage box; 411. Liquid inlet ; 412, connecting hose; 42, transition hose; 5, driving assembly; 51, track; 512, adsorption strip; 52, screw; 53, driving motor; 6, connecting piece; 61, connecting part one; 611, connecting hole one; 612, connecting cavity; 613, adjusting hole; 62, connecting part two; 621, connecting hole two; 622, groove; 623, adsorption piece; 63, positioning piece; 631, electromagnet one; 632, electromagnet two; 633, adjusting piece. DETAILED DESCRIPTION

[0026] The cable grounding box waterproof structure provided in the application embodiment is referred to Figure 1 , including a grounding box body 1, the four corners of the grounding box body 1 are fixed with ear plates 11, and the grounding box body 1 can be fixed to the wall of the building by passing bolts through the ear plates 11 and then nailing them into the wall.

[0027] Reference Figure 1 and Figure 2 The grounding box body 1 includes an electrical area 2 and a storage area 3 arranged on the left and right. An electrical room 21 and a sealing room 22 are provided in the electrical area 2. The electrical room 21 is used to realize the basic functions of the grounding box, such as arranging electrical components and installing cables. An opening 23 connected to the electrical room 21 is provided on the grounding box body 1. A sealing door 24 is provided at the opening 23. The sealing door 24 and the electrical room 21 are sealed by an elastic pad, and the sealing door 24 and the grounding box body 1 are fixed by screws.

[0028] The sealing chamber 22 is arranged directly below the electrical chamber 21 . A plurality of cable holes 12 are provided on the lower surface of the grounding box body 1 . The cable holes 12 pass through the sealing chamber 22 and are connected with the electrical chamber 21 . An annular sealing ring is provided in the cable holes 12 .

[0029] A storage chamber 31 is provided in the storage area 3. The storage chamber 31 is used to store a sealing liquid. The sealing liquid can be pure water, white oil, and some synthetic oils. The characteristics of these sealing liquids are generally stable liquids with high temperature stability, oxidation resistance, corrosion resistance, and non-volatility. A liquid hole 311 is provided between the storage chamber 31 and the sealing chamber 22. A connecting switch 4 is provided at the liquid hole 311. The connecting switch 4 is used to control whether the sealing liquid in the storage chamber 31 enters the sealing chamber 22.

[0030] During the installation of the grounding box, firstly, evenly wrap the protective tape (such as butyl tape, etc.) at the connection position between the cable and the grounding box, then extend the cable from bottom to top through the cable hole 12 into the electrical room 21, and form a seal between the cable and the cable hole 12 through the sealing ring. At the same time, the setting of the protective tape can avoid the contact between the sealing liquid and the cable skin as much as possible, thereby improving the stability of the cable. Then, the sealing liquid is allowed to enter the sealing chamber 22 through the connecting switch 4, and the sealing liquid can form a secondary seal. When the sealing ring is aged and worn, the outside air is blocked by the secondary sealing liquid, and the humid air cannot immediately enter the electrical room 21. In addition, as the sealing ring is aged and worn, the sealing liquid will gradually flow downward, so the staff only needs to observe whether there is leakage under the grounding box during regular inspections to quickly and conveniently check the working condition of the sealing ring.

[0031] A liquid level detector 312 is provided in the sealing chamber 22. The liquid level detector 312 is used to detect the sealing liquid level in the sealing chamber 22 in real time and feed back to the central control system. When the liquid level detector 312 detects that the sealing liquid level in the sealing chamber 22 decreases, it indicates that the sealing liquid has leaked, and the sealing ring needs to be replaced.

[0032] The connection switch 4 includes a storage box 41 slidably connected to the storage chamber 31 . The storage box 41 is slidably connected to the storage chamber 31 . A transition hose 42 is fixedly connected between the storage box 41 and the sealing chamber 22 .

[0033] A driving assembly 5 for driving the storage box 41 to rise and fall is arranged in the storage chamber 31 .

[0034] Reference Figure 3 and Figure 4 A connecting piece 6 is fixedly connected to the storage box 41 .

[0035] Reference Figure 1 and Figure 2 The driving assembly 5 includes a track 51 vertically arranged in the storage chamber 31, a connecting member 6 slidably connected to the track 51, and a screw rod 52 vertically arranged in the storage chamber 31, the screw rod 52 is rotatably connected to the grounding box body 1, and the screw rod 52 passes through the connecting member 6 and is threadedly connected to the connecting member 6. The driving assembly 5 also includes a driving motor 53 fixed to the upper surface of the grounding box for driving the screw rod 52 to rotate.

[0036] Before the cable is installed, the storage box 41 is lower than the sealing chamber 22, and the sealing liquid is located in the storage box 41. After the cable is installed, the storage box 41 is driven by the driving assembly 5 to rise above the sealing chamber 22. At this time, the sealing liquid enters the sealing chamber 22 through the transition hose 42 to seal the cable hole 12.

[0037] Reference Figure 2 , the height of the top of the storage chamber 31 satisfies that when the storage box 41 moves to the top of the storage chamber 31, the height of the bottom surface of the storage box 41 is not lower than the height of the upper wall of the sealing chamber 22, and the sealing liquid in the storage box 41 enters the sealing chamber 22 through the connecting hose 412 to form a seal for the cable hole 12. When the cable hole 12 or the sealing chamber 22 is to be inspected, the storage box 41 can be driven by the driving assembly 5 to descend to a height lower than the sealing chamber 22, and the sealing liquid in the storage chamber 31 flows back into the storage box 41, which is convenient for the staff to inspect the sealing chamber 22 and the cable hole 12.

[0038] In order to make the sealing liquid in the storage box 41 flow more easily to the sealing chamber 22 , the connection point between the connecting hose 412 and the storage box 41 is located at the bottom of the storage box 41 , and the lower surface of the storage box 41 is an inclined surface inclined toward the connecting hose 412 .

[0039] In order to make it easier for the sealing liquid in the sealing chamber 22 to flow into the sealing box when the storage box 41 recovers the sealing liquid in the sealing chamber 22 , the connection point between the connecting pipe and the sealing chamber 22 is located at the bottom of the sealing chamber 22 .

[0040] In order to facilitate the staff to replenish the liquid in the storage box 41, a liquid inlet 411 is opened on the storage box 41, and a liquid injection port 13 connected to the storage chamber 31 is opened on the grounding box. A cover body 131 is provided at the liquid injection port 13.

[0041] The liquid inlet 411 and the liquid injection port 13 can be aligned and connected to complete the liquid injection process. That is, during the up and down movement of the storage box 41, there is a position where the liquid inlet 411 and the liquid injection port 13 are connected. In this position, the staff can perform liquid injection work into the storage box 41 through the liquid inlet 411 and the liquid injection port 13. For example, the liquid inlet 411 is opened to the upper surface of the storage box 41, and the liquid injection port 13 is opened to the upper surface of the grounding box, and the liquid inlet 411 is aligned with the liquid injection port 13.

[0042] When the storage box 41 moves upward, the upper surface of the storage box 41 is aligned with the upper wall of the storage chamber 31 . At this time, the liquid inlet 411 is connected to the liquid outlet, and people can open the cover 131 and add sealing liquid into the storage box 41 through the liquid injection port 13 .

[0043] The liquid inlet 411 and the liquid injection port 13 can also be connected through a pipeline. In this case, a connecting hard pipe 14 and a connecting soft pipe 412 are provided between the liquid inlet 411 and the liquid injection port 13. The connecting hard pipe 14 and the connecting soft pipe 412 are connected in the form of a sleeve, and the connecting hard pipe 14 and the connecting soft pipe 412 are connected by sliding. That is, the connecting hard pipe 14 can be sleeved on the periphery of the connecting soft pipe 412, and the connecting soft pipe 412 can also be sleeved on the periphery of the connecting hard pipe 14. In this case, the solution of sleeved the connecting soft pipe 412 on the periphery of the connecting hard pipe 14 is selected.

[0044] The connecting hard pipe 14 is fixedly connected to the grounding box body 1 and communicated with the liquid injection port 13, and the connecting hose 412 is fixedly connected to the storage box 41 and communicated with the liquid inlet 411. In the process of lifting and lowering the storage box 41, the connecting hose 412 will slide on the connecting hard pipe 14 along the connecting hard pipe 14, and no matter which position the storage box 41 moves to, the sealing liquid can be added to the connecting storage box 41 through the cooperation of the connecting hard pipe 14 and the connecting hose 412. And because the connecting hose 412 is sleeved on the periphery of the connecting hard pipe 14, the sealing liquid can smoothly flow from the liquid injection port 13 to the liquid inlet 411 and then enter the storage box 41 without leaking. At the same time, because the connecting hose 412 moves along the connecting hard pipe 14, the connecting hard pipe 14 can have a certain guiding effect on the movement of the connecting hose 412, so that the movement of the storage box 41 is smoother.

[0045] In order to save more space, the connecting hard pipe 14 is horizontally arranged in an "S" shape.

[0046] Reference Figure 3 and Figure 4 Furthermore, the track 51 is a rod-shaped structure vertically fixed to the storage chamber 31. The cross section of the track 51 can be circular, square, or triangular. In this case, a square is selected. The connector 6 includes a connector 1 61 and a connector 2 62. The connector 1 61 is fixed to the storage box 41, and a connector 1 hole 611 adapted to the track 51 is provided on the connector 1 61. The track 51 passes through the connector 1 hole 611, and the track 51 is slidably connected to the connector 6. The connector 2 62 is provided with a connector 2 hole 621, and the screw 52 passes through the connector 2 hole 621. The screw 52 and the connector 6 are threadedly connected. The connection part 1 61 is provided with a connection cavity 612, which is communicated with the connection hole 1 611. The connection part 2 62 is provided with a groove 622 aligned with the connection cavity 612, and a suction piece 623 is provided in the groove 622. A positioning piece 63 is slidably connected in the connection cavity 612, and an electromagnet 1 631 is fixedly connected to one end of the positioning piece 63, and an electromagnet 2 632 is fixedly connected to the other end of the positioning piece 63. The electromagnet 1 631 extends into the groove 622 and is fixedly adsorbed by the suction piece 623. An adsorption bar 512 is vertically arranged on the track 51 and is used in conjunction with the second electromagnet 632 .

[0047] Under normal working conditions, the first electromagnet 631 on the positioning member 63 extends into the groove 622 and is fixed to the adsorption member 623. At this time, the storage box 41 can be raised and lowered by driving the screw 52 to rotate by the driving motor 53. When the driving motor 53 or the screw 52 fails, the positioning member 63 can be moved away from the adsorption member 623 to disengage the positioning member 63 from the groove 622. At this time, the height of the storage box 41 can be adjusted manually. After the adjustment is completed, the second electromagnet 632 is adsorbed to the adsorption bar 512, and the position of the storage box 41 is fixed by friction.

[0048] In order to facilitate the position adjustment of the positioning member 63 in the connecting cavity 612, an adjustment hole 613 communicating with the connecting cavity 612 is provided on the upper surface of the connecting member 6. The adjustment hole 613 is arranged along the length direction of the connecting cavity 612. An adjustment member 633 is fixedly connected to the corresponding positioning member 63. The adjustment member 633 extends through the adjustment hole 613. The staff can adjust the position of the positioning member 63 more conveniently through the adjustment member 633.

[0049] Reference Figure 2 A filling chamber 25 is also provided in the working chamber, and the filling chamber 25 is located directly below the sealing chamber 22, and the cable hole 12 passes through the filling chamber 25. A filling hole 26 connected to the filling chamber 25 is provided on the side wall of the grounding box body 1. After the cable is arranged, an expansion agent can be filled into the filling chamber 25 through the filling hole 26 to form a triple seal for the cable hole 12, further improving the sealing effect of the cable hole 12.

[0050] Reference Figure 1 The grounding box body 1 is provided with a connection port 15 communicating with the storage chamber 31 , a closed door panel 16 is hinged at the connection port 15 , and a lock body is provided between the closed door panel 16 and the grounding box body 1 .

[0051] Cable grounding box installation method: includes the following steps, 1. Fix the grounding box body 1 to the building wall; A screw hole is opened on the wall of the building, and then a bolt is passed through the ear plate 11 on the grounding box body 1 and fixed to the screw hole.

[0052] 2. Install the cable to the grounding box body 1; The cable to be installed is passed through the cable hole 12 and then installed on the electrical components in the grounding box body 1 .

[0053] 3. Fill the filling chamber 25 with expansion agent The expansion agent is filled into the filling chamber 25 through the filling hole 26 , and the expansion agent forms a seal on the cable hole 12 .

[0054] 4. Fill the sealing chamber 22 with sealing liquid The storage box 41 is driven to rise above the sealing chamber 22 by the driving assembly 5, and the sealing liquid is injected into the storage box 41 through the liquid injection port 13. The sealing liquid passes through the connecting hard tube 14, the connecting hose 412, the storage box 41, and the transition hose 42 and enters the sealing chamber 22.

[0055] The implementation principle of this scheme is as follows: after the cable is fixed to the grounding box body 1, the sealing ring in the cable hole 12 forms a primary seal for the cable hole 12, and then the sealing liquid is poured into the sealing chamber 22 to form a secondary seal for the cable hole 12, and then the expansion agent is filled into the filling chamber 25 to form a tertiary seal, which greatly increases the sealing effect of the cable hole 12. At the same time, a liquid level detector 312 is set in the sealing chamber 22. When there is a problem with the sealing of the cable hole 12, the liquid level in the sealing chamber 22 decreases. At this time, the liquid level detector 312 detects the liquid level change clearly, and can promptly remind the staff to perform maintenance.

[0056] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any effective changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable grounding box waterproof structure, comprising a grounding box body (1), characterized in that: The grounding box body (1) comprises an electrical area (2), an electrical room (21) and a sealing room (22) are arranged in the electrical area (2), the sealing room (22) is located below the electrical room (21), a plurality of cable holes (12) are provided on the lower surface of the grounding box body (1), the cable holes (12) pass through the sealing room (22) and the electrical room (21) in sequence, and a sealing ring is arranged in the cable hole (12).

2. The cable grounding box waterproof structure and installation method according to claim 1 is characterized in that: A liquid level detector (312) is arranged in the sealed chamber (22).

3. The cable grounding box waterproof structure according to claim 1, characterized in that: The grounding box body (1) is further provided with a storage area (3), wherein a storage chamber (31) is provided in the storage area (3), a liquid through hole (311) is provided between the storage chamber (31) and the sealing chamber (22), and a connection switch (4) is provided at the liquid through hole (311); The connection switch (4) comprises a storage box (41) arranged in the storage chamber (31), and the storage box (41) is connected to the sealed chamber (22) via a transition hose (42); It also includes a driving assembly (5) for driving the storage box (41) to rise and fall.

4. The cable grounding box waterproof structure according to claim 3, characterized in that: The storage box (41) is fixedly connected with a connecting piece (6), the grounding box body (1) is vertically provided with a track (51), the connecting piece (6) is slidably connected to the track (51), the driving assembly (5) comprises a driving motor (53) and a screw rod (52), the screw rod (52) passes through the connecting piece (6) and is threadedly connected to the connecting piece (6), and the driving motor (53) is used to drive the screw rod (52) to rotate.

5. The cable grounding box waterproof structure according to claim 4, characterized in that: The grounding box is provided with a liquid injection port (13) communicating with the storage chamber (31); the storage box (41) is provided with a liquid inlet (411); a connecting hard pipe (14) and a connecting hose (412) are provided between the liquid injection port (13) and the liquid inlet (411); the connecting hose (412) and the connecting hard pipe (14) are sleeved together and slidably connected; the connecting hard pipe (14) is fixedly connected to the liquid injection port (13) or the liquid inlet (411); When the connecting hard tube (14) is fixedly connected to the liquid injection port (13), the connecting hose (412) is fixedly connected to the liquid inlet (411); When the connecting hose (412) is fixedly connected to the liquid injection port (13), the connecting hard tube (14) is fixedly connected to the liquid inlet (411).

6. The cable grounding box waterproof structure according to claim 5, characterized in that: The connecting hard tube (14) is fixedly connected to the liquid injection port (13), and the connecting hose (412) is fixedly connected to the liquid inlet (411).

7. The cable grounding box waterproof structure and installation method according to claim 6, characterized in that: The connecting hose (412) is sleeved onto the periphery of the connecting hard pipe (14).

8. The cable grounding box waterproof structure according to any one of claims 1 to 7, characterized in that: A filling chamber (25) is provided below the electrical room (21) in the electrical area (2), the cable hole (12) passes through the filling chamber (25), and a filling hole (26) communicating with the filling chamber (25) is provided on the outer side wall of the grounding box body (1).

9. The waterproof structure of the cable grounding box according to claim 7, characterized in that: The filling chamber (25) is located below the storage chamber (31).

10. The cable grounding box waterproof structure according to claim 4, characterized in that: The track (51) is a rod-shaped structure; The connecting member (6) comprises a connecting portion 1 (61) and a connecting portion 2 (62); the connecting portion 1 (61) is provided with a connecting hole 1 (611), and the track (51) passes through the connecting hole 1 (611); the connecting portion 2 (62) is provided with a connecting hole 2 (621), and the screw rod (52) passes through the connecting hole 2 (621); The first connecting part (61) is provided with a connecting cavity (612) which is in communication with the first connecting hole (611); the second connecting part (62) is provided with a groove (622) which is aligned with the connecting cavity (612); the groove (622) is provided with an adsorption member (623); a positioning member (63) is slidably connected in the connecting cavity (612); one end of the positioning member (63) is fixedly connected with the first electromagnet (631); the other end of the positioning member (63) is fixedly connected with the second electromagnet (632); the first electromagnet (631) extends into the groove (622) and is adsorbed and fixed with the adsorption member (623); An adsorption strip (512) is vertically arranged on the track (51) and is used in conjunction with the second electromagnet (632).

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