An anti-interference sealed waterproof distribution box

Abstract

This invention discloses an anti-interference, sealed, and waterproof junction box, belonging to the technical field of junction boxes. The anti-interference, sealed, and waterproof junction box includes a shell. Several fixing holes are formed inside the shell wall, and fixing bolts are inserted through these holes. One end of each fixing bolt is threaded to a top cover. Several plugs are fixedly connected to one side of the shell. A partition is fixedly connected inside the shell, and several fifth through holes are formed on the partition. A pressure regulating mechanism is fixedly connected to the side of the shell near the partition, and a gas replenishment mechanism is fixedly connected to the outer side of the shell near the pressure regulating mechanism. This invention, through the use of the pressure regulating mechanism and the gas replenishment mechanism, ensures that the air pressure inside the junction box is always greater than the external pressure, thereby preventing moisture intrusion, improving the sealing and waterproof performance of the junction box, significantly enhancing its protection capabilities, and preventing damage to internal electronic components.

Description

Technical Field

[0001] This invention belongs to the field of junction box technology, specifically relating to an anti-interference, sealed, and waterproof junction box. Background Technology

[0002] A BeiDou positioning junction box is an integrated device specifically designed for harsh industrial and outdoor environments. It typically combines a BeiDou positioning module with a protective housing that provides signal splitting and connection functions. Its core function is to provide stable and reliable positioning signal access and distribution for mobile or fixed equipment that relies on BeiDou positioning. Its anti-interference design ensures the quality of positioning signals and the stability of data transmission even in complex electromagnetic environments. This device is primarily used to improve the system durability and reliability of applications such as outdoor critical asset monitoring, remote data acquisition, autonomous driving, and high-precision positioning.

[0003] However, the existing sealing structure is prone to water leakage when facing underwater due to excessive water pressure. At the same time, moisture can easily enter the junction box through the gaps, corroding the circuit, causing short circuits, and damaging components. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an anti-interference, sealed and waterproof junction box.

[0005] The technical solution adopted to solve the above technical problems is: an anti-interference sealed waterproof junction box, including an outer shell, a plurality of fixing holes are opened in the inner wall of the outer shell, fixing bolts are inserted through the fixing holes, one end of the fixing bolts is threaded to a top cover, a plurality of plugs are fixedly connected to one side of the outer shell, a partition is fixedly connected inside the outer shell, a plurality of fifth through holes are opened on the partition, a gas pressure regulating mechanism is fixedly connected to the side of the outer shell near the partition, and a gas replenishment mechanism is fixedly connected to the outer shell near the gas pressure regulating mechanism.

[0006] By employing the above technical solutions, including the use of a pressure regulating mechanism and a gas replenishment mechanism, the air pressure inside the junction box is always greater than the external pressure, thereby preventing moisture intrusion, improving the sealing and waterproof performance of the junction box, significantly enhancing its protection capabilities, and preventing damage to internal electronic components.

[0007] Preferably, a nameplate is fixedly connected to the outer casing, an indicator light is fixedly connected to the side of the outer casing away from the gas replenishment mechanism, a switch is fixedly connected to the side of the outer casing near the indicator light, a data cable and a grounding wire are fixedly connected to the side of the outer casing away from the plug, and a second sealing protrusion is fixedly connected to the side of the inner casing near the top cover.

[0008] The above technical solution can clearly identify the data of the electronic components inside the casing and control the junction box via indicator lights and switches.

[0009] Preferably, the upper cover includes a cover plate with threaded connection fixing bolts. A pair of first fixing plates are fixedly connected to both sides of the cover plate. A first groove is formed on the pair of first fixing plates. A first sealing protrusion is fixedly connected to the cover plate. A first sealing gasket is fixedly connected to the outside of the first sealing protrusion. A second sealing gasket is fixedly connected to the end of the first sealing protrusion away from the cover plate. A second groove is formed on the outside of the first sealing protrusion. A first rubber membrane is fixedly connected to the second groove. A plurality of first through holes are formed on the inner side of the first sealing protrusion. The first through holes communicate with the second groove.

[0010] The above technical solution first seals both sides of the joint between the outer shell and the upper cover using the first and second sealing gaskets. Then, high-pressure gas enters the first rubber membrane, lifting it up and greatly improving the airtightness between the upper cover and the outer shell.

[0011] Preferably, the plug includes a connector head that penetrates and is fixedly connected to the outer shell. Several fixing screws are disposed through the connector head and are threadedly connected to the outer shell. The outer shell has a fixing groove near the outside, and a first sealing ring is fixedly connected in the fixing groove. A second sealing ring is fitted on the end of the connector head away from the first sealing ring. Several first pipes are fixedly connected through the inner side of the outer shell. A third groove is disposed near the connector head on the outer shell, and a second rubber membrane is fixedly connected to the third groove. The first pipes and the third groove are connected.

[0012] The above technical solution uses a cover plate and a plug, and fixes the cover plate and connector to the outer shell using fixing screws and bolts. At the same time, a triple sealing structure is set at the connection to seal the main seams on the outer shell. High-pressure gas inside the outer shell is poured into the second and third grooves through the first through hole and the first pipe, causing the first and second rubber membranes to expand. This improves the connection firmness and makes the rubber membranes fit tightly against the cover plate and the plug, thus improving the sealing effect.

[0013] Preferably, the air pressure regulating mechanism includes a sleeve fixed inside the outer shell, a fourth through hole at the bottom end of the sleeve, a first piston slidably connected through the sleeve, an air pressure regulating rod fixedly connected to the upper surface of the first piston, a fixed shaft fixedly connected inside the air pressure regulating rod, the air pressure regulating rod and the first piston being hollowly arranged, a plurality of second through holes at the top end of the air pressure regulating rod, a fourth groove on the outside of the first piston, a third through hole at the bottom end of the fourth groove, third sealing rings fixedly connected to both sides of the fourth groove, and a second spring fixedly connected to the lower end of the first piston.

[0014] Through the above technical solution, by using the air pressure regulating mechanism, when the air pressure inside the outer shell is lower than the external pressure, the first piston moves upward, and through the connecting rod, it drives the sliding seat to move downward, causing the sealing plug to disengage from the third pipe, allowing the high-pressure gas in the gas cylinder to enter the outer shell, increasing the air pressure inside the outer shell and preventing external substances from entering. At the same time, through the second through hole on the liquid storage cylinder and the air pressure regulating rod, the airtight oil can enter the fourth groove and the third sealing ring, preventing the third sealing ring from wearing out due to frequent movement of the first piston, thus preventing the seal from failing.

[0015] Preferably, a liquid storage cylinder is fixedly connected inside the outer shell, the air pressure regulating rod slides through the liquid storage cylinder, the top of the liquid storage cylinder slides through a fixed rod, a second pipe is locked inside the fixed rod, a sealing cap is threaded to the upper end of the fixed rod, a second piston is fixedly connected to the lower end of the fixed rod, a fixed sleeve is fitted on the outside of the second piston, several fourth sealing rings are fixedly connected to the outside of the fixed sleeve, and a first spring is fixedly connected to the upper surface of the second piston.

[0016] With the above technical solution, by opening the top cover and sealing cover, pulling the fixing rod, compressing the first spring, and replenishing the gas-tight oil into the liquid storage cylinder through the second pipe, the sealing cover is then closed, the fixing rod is released, and the first spring will push the second piston down, pushing the gas-tight oil into the air pressure regulating rod.

[0017] Preferably, a fixed base is fixedly connected inside the outer casing, and a connecting rod is rotatably connected to the fixed base. Both ends of the connecting rod have slotted holes, and the fixed shaft passes through the slotted holes. A second fixed plate is fixedly connected inside the outer casing, and a pair of sliding rods are fixedly connected to the second fixed plate. A sliding seat passes through the sliding rods and is slidably connected to the sliding seat. A fifth groove is formed inside the sliding seat, and a third spring is fixedly connected to the fifth groove. A sealing plug is fixedly connected to the third spring, and a connecting seat is fixedly connected to the end of the sliding seat away from the sealing plug. The connecting seat passes through the slotted holes.

[0018] With the above technical solution, the first piston moves outward, and the connecting rod rotates through the fixed shaft on the air pressure regulating rod. The connecting rod drives the sliding seat to move upward through the connecting seat, so that the sealing plug on the sliding seat is facing the third pipe. At this time, the third spring pushes the sealing plug to block the third pipe, preventing high-pressure gas from continuing to enter the outer shell.

[0019] Preferably, the gas replenishment mechanism includes a third pipe fixedly connected to the outer casing, the sealing plug facing the third pipe, a fixing frame fixedly connected to the outer casing, a gas cylinder disposed inside the fixing frame, a mounting base fixedly connected to the end of the third pipe away from the outer casing, the gas cylinder being threadedly connected to the mounting base, a baffle fixedly connected inside the gas cylinder, a fourth spring fixedly connected to the baffle, a sealing plate fixedly connected to the end of the fourth spring away from the baffle, a support frame fixedly connected to the end of the third pipe near the mounting base, and a top rod fixedly connected to the support frame.

[0020] By using the above technical solution, the gas cylinder is fixed on the mounting base, and the top rod lifts the sealing plate, allowing high-pressure gas to enter the outer shell through the third pipe, providing a higher air pressure inside the shell than outside. This effectively prevents water vapor and other substances from entering the shell. At the same time, by opening fixing holes on the shell wall, the number of seams on the shell can be minimized, greatly improving the integrity of the shell.

[0021] The beneficial effects of this invention are as follows: (1) The present invention uses a cover plate and a plug to fix the cover plate and the connector to the outer shell by fixing screws and bolts. At the same time, a triple sealing structure is set at the connection to seal the main seams on the outer shell. High-pressure gas inside the outer shell is introduced into the second and third grooves through the first through hole and the first pipe, causing the first and second rubber membranes to expand. On the one hand, this improves the connection firmness, and on the other hand, it makes the rubber membranes adhere tightly to the cover plate and the plug, thus improving the sealing effect.

[0022] (2) By using the air pressure regulating mechanism, when the air pressure inside the outer shell is less than the external pressure, the first piston moves upward and drives the sliding seat to move downward through the connecting rod, so that the sealing plug is separated from the third pipe, allowing the high-pressure gas in the gas cylinder to enter the outer shell, increasing the air pressure inside the outer shell and preventing external substances from entering. At the same time, through the second through hole on the liquid storage cylinder and the air pressure regulating rod, the airtight oil can enter the fourth groove and the third sealing ring, preventing the first piston from moving frequently, which would cause the third sealing ring to wear and the seal to fail.

[0023] (3) By using the gas replenishment mechanism, the gas cylinder is fixed on the mounting base and the top rod lifts the sealing plate, so that high-pressure gas can enter the outer shell through the third pipe, providing the outer shell with a gas pressure greater than that of the outside. This can effectively prevent water vapor and other substances from entering the outer shell. At the same time, by opening fixing holes on the shell wall, the number of seams on the outer shell can be reduced as much as possible, greatly improving the integrity of the outer shell. Attached Figure Description

[0024] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a second-view structural diagram of the present invention; Figure 3 This is an exploded view of the top cover of the present invention; Figure 4 This is a partial cross-sectional view of the upper cover of the present invention; Figure 5 yes Figure 4 Enlarged view of point A; Figure 6 This is a first-view structural diagram of the internal structure of the present invention; Figure 7 This is a second-view structural diagram of the internal structure of the present invention; Figure 8 This is a cross-sectional view of the plug portion of the present invention; Figure 9 This is a cross-sectional view of the air pressure control mechanism of the present invention; Figure 10 yes Figure 9 Enlarged view of point B; Figure 11 yes Figure 9 Enlarged view of point C; Figure 12 yes Figure 9 Enlarged view of point D; Figure 13 yes Figure 9 Enlarged view of point E; Figure 14 This is a structural diagram of the air pressure regulating rod of the present invention.

[0025] Reference numerals: 1. Outer shell; 2. Top cover; 21. Cover plate; 22. First fixing plate; 23. First groove; 24. First sealing protrusion; 25. First sealing gasket; 26. Second sealing gasket; 27. First through hole; 28. Second groove; 29. ​​First rubber diaphragm; 3. Plug; 31. Connector; 32. Fixing screw; 33. Fixing groove; 34. First sealing ring; 35. Second sealing ring; 36. First pipe; 37. Third groove; 38. Second rubber diaphragm; 4. Air pressure regulating mechanism; 41. Sleeve; 42. Air pressure regulating rod; 43. Fixing shaft; 44. Second through hole; 45. First piston; 46. Third through hole; 47. Fourth groove; 48. Third sealing ring; 49. Liquid storage tank; 410. Fixing rod; 411. Second piston; 412. Second pipe; 413. 414. First spring; 415. Sealing cap; 416. Fixing sleeve; 417. Fourth sealing ring; 418. Fixing seat; 419. Connecting rod; 420. Strip hole; 421. Second spring; 422. Fourth through hole; 423. Second fixing plate; 424. Sliding rod; 425. Sliding seat; 426. Fifth groove; 427. Third spring; 428. Sealing plug; 5. Connecting seat; 5. Gas replenishment mechanism; 51. Fixing frame; 52. Gas cylinder; 53. Third pipeline; 54. Support frame; 55. Top rod; 56. Mounting seat; 57. Baffle; 58. Fourth spring; 59. Sealing plate; 6. Nameplate; 7. Switch; 8. Indicator light; 9. Data cable; 10. Grounding wire; 11. Fixing hole; 12. Fixing bolt; 13. Second sealing protrusion; 14. Partition plate; 15. Fifth through hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] like Figures 1-14 As shown in this embodiment, an anti-interference sealed waterproof junction box includes a housing 1. The housing 1 has a plurality of fixing holes 11 inside its wall. Fixing bolts 12 are inserted through the fixing holes 11. A partition 14 is fixedly connected inside the housing 1. The partition 14 has a plurality of fifth through holes 15. By using the partition 14 and the fifth through holes 15, the air pressure regulating mechanism 4 can be separated from the electronic devices, so as to prevent the movement of the internal components of the air pressure regulating mechanism 4 from affecting the electronic devices.

[0028] A nameplate 6 is fixedly connected to the outer casing 1. An indicator light 8 is fixedly connected to the side of the outer casing 1 away from the gas replenishment mechanism 5. A switch 7 is fixedly connected to the side of the outer casing 1 close to the indicator light 8. A data cable 9 and a grounding wire 10 are fixedly connected to the side of the outer casing 1 away from the plug 3. A second sealing protrusion 13 is fixedly connected to the side of the outer casing 1 close to the top cover 2. Data is recorded through the nameplate 6 and the internal electronic components are controlled through the switch 7.

[0029] like Figures 2-5 As shown, one end of the fixing bolt 12 is threadedly connected to the upper cover 2. The upper cover 2 includes a cover plate 21 threadedly connected to the fixing bolt 12. A pair of first fixing plates 22 are fixedly connected to both sides of the cover plate 21. A first groove 23 is provided on the pair of first fixing plates 22. A first sealing protrusion 24 is fixedly connected to the cover plate 21. A first sealing gasket 25 is fixedly connected to the outside of the first sealing protrusion 24. A second sealing gasket 26 is fixedly connected to the end of the first sealing protrusion 24 away from the cover plate 21. A groove 23 is provided on the outside of the first sealing protrusion 24. There is a second groove 28, and a first rubber membrane 29 is fixedly connected to the second groove 28. A number of first through holes 27 are opened on the inner side of the first sealing protrusion 24. The first through holes 27 are connected to the second groove 28. The fixing bolt 12 is inserted into the fixing hole 11 and threadedly connected to the upper cover 2, so that the upper cover 2 is fixed on the outer shell 1. The fixing bolt 12 is tightened so that the upper cover 2 is pressed tightly on the outer shell 1. At this time, the first sealing gasket 25 is in close contact with the edge of the outer shell 1, and the second sealing gasket 26 is in close contact with the second sealing protrusion 13.

[0030] like Figure 7 and Figure 8 As shown, a plurality of plugs 3 are fixedly connected to one side of the outer casing 1. Each plug 3 includes a connector 31 that penetrates and is fixedly connected to the outer casing 1. A plurality of fixing screws 32 are provided through the connector 31 and are threadedly connected to the outer casing 1. A fixing groove 33 is provided near the outer side of the outer casing 1. A first sealing ring 34 is fixedly connected in the fixing groove 33. A second sealing ring 35 is fitted on the end of the connector 31 away from the first sealing ring 34. A plurality of first pipes 36 are fixedly connected through the inner side of the outer casing 1. A third groove 37 is provided near the connector 31 of the outer casing 1. A second rubber membrane 38 is fixedly connected to the third groove 37. The first pipes 36 and the third groove 37 are connected. The plugs 3 are fixed to the outer casing 1 by the fixing screws 32. At this time, the first sealing ring 34 and the second sealing ring 35 respectively seal the connection between the inner and outer sides of the outer casing 1 and the plugs 3.

[0031] like Figures 9-11 and Figure 14As shown, a pressure regulating mechanism 4 is fixedly connected to the side of the outer casing 1 near the partition 14. The pressure regulating mechanism 4 includes a sleeve 41 fixed inside the outer casing 1. A fourth through hole 421 is opened at the bottom end of the sleeve 41. A first piston 45 is slidably connected through the sleeve 41. A pressure regulating rod 42 is fixedly connected to the upper surface of the first piston 45. A fixed shaft 43 is fixedly connected inside the pressure regulating rod 42. The pressure regulating rod 42 and the first piston 45 are hollow. A number of second through holes 44 are opened at the top end of the pressure regulating rod 42. A fourth groove 47 is opened outside the first piston 45. A third through hole 46 is opened at the bottom end of the fourth groove 47. A third sealing ring 48 is fixedly connected to both sides of the fourth groove 47. A second spring 420 is fixedly connected to the lower end of the first piston 45. Through the second through hole 44 at the upper end of the pressure regulating rod 42, the airtight oil in the liquid storage cylinder 49 can enter the fourth groove 47 and the third sealing ring 48 through the third through hole 46 to provide a seal for the first piston 45.

[0032] A liquid storage cylinder 49 is fixedly connected inside the outer casing 1. A pressure regulating rod 42 slides through the liquid storage cylinder 49. A fixed rod 410 slides through the top of the liquid storage cylinder 49. A second pipe 412 is locked inside the fixed rod 410. A sealing cap 414 is threaded to the upper end of the fixed rod 410. A second piston 411 is fixedly connected to the lower end of the fixed rod 410. A fixed sleeve 415 is fitted on the outside of the second piston 411. Several fourth sealing rings 416 are fixedly connected to the outside of the fixed sleeve 415. A first spring 413 is fixedly connected to the upper surface of the second piston 411. When it is necessary to replenish the airtight oil, simply open the upper cover 2 and the sealing cap 414, pull the fixed rod 410, compress the first spring 413, and the airtight oil can be replenished into the liquid storage cylinder 49 through the second pipe 412. Then close the sealing cap 414, release the fixed rod 410, and the first spring 413 will push the second piston 411 down, pushing the airtight oil into the pressure regulating rod 42.

[0033] A fixed base 417 is fixedly connected inside the outer casing 1. A connecting rod 418 is rotatably connected to the fixed base 417. Both ends of the connecting rod 418 have slotted holes 419. A fixed shaft 43 passes through and slides through the slotted holes 419. A second fixed plate 422 is fixedly connected inside the outer casing 1. A pair of sliding rods 423 are fixedly connected to the second fixed plate 422. A sliding seat 424 is slidably connected through the sliding rods 423. A fifth groove 425 is formed inside the sliding seat 424. A third spring 426 is fixedly connected inside the fifth groove 425. A third spring 426 is fixedly connected to the third spring 426. A sealing plug 427 and a sliding seat 424 are fixedly connected to a connecting seat 428 at the end away from the sealing plug 427. The connecting seat 428 passes through the sliding connecting strip hole 419. High pressure gas causes the first piston 45 to move outward, which drives the connecting rod 418 to rotate through the fixed shaft 43 on the air pressure regulating rod 42. The connecting rod 418 drives the sliding seat 424 to move upward through the connecting seat 428, so that the sealing plug 427 on the sliding seat 424 is facing the third pipe 53. At this time, the third spring 426 pushes the sealing plug 427 to block the third pipe 53, preventing high pressure gas from continuing to enter the outer shell 1.

[0034] like Figure 9 and Figure 12 As shown, a gas replenishment mechanism 5 is fixedly connected to the end of the outer casing 1 near the gas pressure regulating mechanism 4. The gas replenishment mechanism 5 includes a third pipe 53 fixedly connected to the outer casing 1, a sealing plug 427 facing the third pipe 53, a fixing frame 51 fixedly connected to the outer casing 1, and a gas cylinder 52 disposed inside the fixing frame 51. A mounting base 56 is fixedly connected to the end of the third pipe 53 away from the outer casing 1. The gas cylinder 52 is threadedly connected to the mounting base 56. A baffle 57 is fixedly connected inside the gas cylinder 52. A fourth spring 58 is fixedly connected to the baffle 57. A sealing plate 5 is fixedly connected to the end of the fourth spring 58 away from the baffle 57. 9. A support frame 54 is fixedly connected to one end of the third pipe 53 near the mounting base 56. A push rod 55 is fixedly connected to the support frame 54. The gas cylinder 52 is inserted into the fixing frame 51 and rotated to be fixed on the mounting base 56. At this time, the push rod 55 lifts the sealing plate 59, so that the high-pressure gas in the gas cylinder 52 fills the outer shell 1. The high-pressure gas enters the second groove 28 through the first through hole 27 and lifts the first rubber diaphragm 29 so that it is tightly attached to the inner wall of the outer shell 1. At the same time, the high-pressure gas enters the third groove 37 through the first pipe 36 and lifts the second rubber diaphragm 38 so that the second rubber diaphragm 38 is tightly attached to the connector 31.

[0035] The working principle of this embodiment is as follows: the fixing bolt 12 is inserted into the fixing hole 11 and the upper cover 2 is threaded to fix the upper cover 2 to the outer shell 1. The fixing bolt 12 is tightened to press the upper cover 2 tightly onto the outer shell 1. At this time, the first sealing gasket 25 is in close contact with the edge of the outer shell 1, the second sealing gasket 26 is in close contact with the second sealing protrusion 13, and the plug 3 is fixed to the outer shell 1 by the fixing screw 32. At this time, the first sealing ring 34 and the second sealing ring 35 respectively seal the connection between the inner and outer shell 1 and the plug 3.

[0036] Insert the gas cylinder 52 into the fixing bracket 51 and rotate it to fix it on the mounting base 56. At this time, the push rod 55 lifts the sealing plate 59, so that the high-pressure gas in the gas cylinder 52 fills the outer shell 1. The high-pressure gas enters the second groove 28 through the first through hole 27 and lifts the first rubber diaphragm 29 so that it is tightly attached to the inner wall of the outer shell 1. At the same time, the high-pressure gas enters the third groove 37 through the first pipe 36 and lifts the second rubber diaphragm 38 so that the second rubber diaphragm 38 is tightly attached to the connector 31.

[0037] At the same time, the high-pressure gas causes the first piston 45 to move outward, which drives the connecting rod 418 to rotate through the fixed shaft 43 on the air pressure regulating rod 42. The connecting rod 418 drives the sliding seat 424 to move upward through the connecting seat 428, so that the sealing plug 427 on the sliding seat 424 is facing the third pipe 53. At this time, the third spring 426 pushes the sealing plug 427 to block the third pipe 53, preventing the high-pressure gas from continuing to enter the outer shell 1.

[0038] Through the second through hole 44 at the upper end of the air pressure regulating rod 42, the airtight oil in the liquid storage cylinder 49 can enter the fourth groove 47 and the third sealing ring 48 through the third through hole 46 to provide a seal for the first piston 45. When it is necessary to replenish the airtight oil, simply open the upper cover 2 and the sealing cover 414, pull the fixing rod 410, compress the first spring 413, and replenish the airtight oil into the liquid storage cylinder 49 through the second pipe 412. Then close the sealing cover 414, release the fixing rod 410, and the first spring 413 will push the second piston 411 down, pushing the airtight oil into the air pressure regulating rod 42. Through the use of the partition 14 and the fifth through hole 15, the air pressure regulating mechanism 4 can be separated from the electronic components to prevent the movement of the internal components of the air pressure regulating mechanism 4 from affecting the electronic components.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An anti-interference, sealed, and waterproof junction box, comprising a housing (1), characterized in that: The outer shell (1) has several fixing holes (11) inside its shell wall. Fixing bolts (12) are installed through the fixing holes (11). One end of the fixing bolts (12) is threaded to a top cover (2). Several plugs (3) are fixedly connected to one side of the outer shell (1). A partition (14) is fixedly connected inside the outer shell (1). Several fifth through holes (15) are opened on the partition (14). A pressure regulating mechanism (4) is fixedly connected to the side of the outer shell (1) near the partition (14). A gas replenishment mechanism (5) is fixedly connected to the outside of the side of the outer shell (1) near the pressure regulating mechanism (4).

2. The anti-interference, sealed, and waterproof junction box according to claim 1, characterized in that, A nameplate (6) is fixedly connected to the outer casing (1). An indicator light (8) is fixedly connected to the side of the outer casing (1) away from the gas replenishment mechanism (5). A switch (7) is fixedly connected to the side of the outer casing (1) close to the indicator light (8). A data line (9) and a grounding wire (10) are fixedly connected to the side of the outer casing (1) away from the plug (3). A second sealing protrusion (13) is fixedly connected to the side of the outer casing (1) close to the top cover (2).

3. The anti-interference, sealed, and waterproof junction box according to claim 1, characterized in that, The upper cover (2) includes a cover plate (21) threadedly connected to the fixing bolt (12). A pair of first fixing plates (22) are fixedly connected to both sides of the cover plate (21). A first groove (23) is provided on the pair of first fixing plates (22). A first sealing protrusion (24) is fixedly connected to the cover plate (21). A first sealing gasket (25) is fixedly connected to the outside of the first sealing protrusion (24). A second sealing gasket (26) is fixedly connected to the end of the first sealing protrusion (24) away from the cover plate (21). A second groove (28) is provided on the outside of the first sealing protrusion (24). A first rubber membrane (29) is fixedly connected to the second groove (28). A plurality of first through holes (27) are provided on the inside of the first sealing protrusion (24). The first through holes (27) are connected to the second groove (28).

4. The anti-interference, sealed, and waterproof junction box according to claim 1, characterized in that, The plug (3) includes a connector (31) that is fixedly connected to the outer shell (1). Several fixing screws (32) are provided through the connector (31). The fixing screws (32) are threadedly connected to the outer shell (1). The outer shell (1) has a fixing groove (33) near the outside. A first sealing ring (34) is fixedly connected in the fixing groove (33). A second sealing ring (35) is fitted on the end of the connector (31) away from the first sealing ring (34). Several first pipes (36) are fixedly connected through the inner side of the outer shell (1). A third groove (37) is provided on the outer shell (1) near the connector (31). A second rubber membrane (38) is fixedly connected in the third groove (37). The first pipes (36) and the third groove (37) are connected.

5. The anti-interference, sealed, and waterproof junction box according to claim 1, characterized in that, The air pressure regulating mechanism (4) includes a sleeve (41) fixed inside the outer shell (1). The bottom end of the sleeve (41) is provided with a fourth through hole (421). A first piston (45) is slidably connected through the sleeve (41). An air pressure regulating rod (42) is fixedly connected to the upper surface of the first piston (45). A fixed shaft (43) is fixedly connected inside the air pressure regulating rod (42). The air pressure regulating rod (42) and the first piston (45) are hollow. Several second through holes (44) are provided at the top end of the air pressure regulating rod (42). A fourth groove (47) is provided outside the first piston (45). A third through hole (46) is provided at the bottom end of the fourth groove (47). A third sealing ring (48) is fixedly connected to both sides of the fourth groove (47). A second spring (420) is fixedly connected to the lower end of the first piston (45).

6. The anti-interference, sealed, and waterproof junction box according to claim 5, characterized in that, A liquid storage cylinder (49) is fixedly connected inside the outer shell (1). The air pressure regulating rod (42) slides through the liquid storage cylinder (49). The top of the liquid storage cylinder (49) slides through the fixed rod (410). A second pipe (412) is locked inside the fixed rod (410). A sealing cap (414) is threaded to the upper end of the fixed rod (410). A second piston (411) is fixedly connected to the lower end of the fixed rod (410). A fixed sleeve (415) is fitted on the outside of the second piston (411). Several fourth sealing rings (416) are fixedly connected to the outside of the fixed sleeve (415). A first spring (413) is fixedly connected to the upper surface of the second piston (411).

7. The anti-interference, sealed, and waterproof junction box according to claim 6, characterized in that, A fixed base (417) is fixedly connected inside the outer shell (1). A connecting rod (418) is rotatably connected to the fixed base (417). Both ends of the connecting rod (418) are provided with strip holes (419). The fixed shaft (43) slides through and is connected to the strip holes (419). A second fixed plate (422) is fixedly connected inside the outer shell (1). A pair of sliding rods (423) are fixedly connected to the second fixed plate (422). A sliding seat (424) slides through and is connected to the sliding rods (423). A fifth groove (425) is provided inside the sliding seat (424). A third spring (426) is fixedly connected inside the fifth groove (425). A sealing plug (427) is fixedly connected to the third spring (426). A connecting seat (428) is fixedly connected to the end of the sliding seat (424) away from the sealing plug (427). The connecting seat (428) slides through and is connected to the strip holes (419).

8. The anti-interference, sealed, and waterproof junction box according to claim 7, characterized in that, The gas replenishment mechanism (5) includes a third pipe (53) fixedly connected to the outer shell (1), a sealing plug (427) facing the third pipe (53), a fixing frame (51) fixedly connected to the outer shell (1), a gas cylinder (52) disposed inside the fixing frame (51), a mounting base (56) fixedly connected to the end of the third pipe (53) away from the outer shell (1), the gas cylinder (52) being threadedly connected to the mounting base (56), a baffle (57) fixedly connected inside the gas cylinder (52), a fourth spring (58) fixedly connected to the baffle (57), a sealing plate (59) fixedly connected to the end of the fourth spring (58) away from the baffle (57), a support frame (54) fixedly connected to the end of the third pipe (53) near the mounting base (56), and a top rod (55) fixedly connected to the support frame (54).

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