An environmentally friendly gas insulated ring network box

Abstract

The present application relates to the field of electrical equipment technology. An environmentally friendly gas insulated ring network box includes a cabinet, a sealed gas box, an air inlet assembly and an air outlet assembly. The sealed gas box includes a box body and a door. The box body is connected to the cabinet. The box body is provided with a receiving chamber. The door is connected to the box body and covers the opening of the receiving chamber. The air inlet assembly and the air outlet assembly are both connected to the box body. The wall of the receiving chamber is provided with two connecting holes. The two connecting holes are respectively connected to the air inlet assembly and the air outlet assembly. The air inlet assembly enables the outside to enter the receiving chamber, and the air outlet assembly enables the receiving chamber to exit the outside. Inflation and exhaust are performed through the air inlet assembly and the air outlet assembly according to the air pressure in the receiving chamber to maintain a suitable working pressure in the sealed gas box, reduce the possibility of damage to the sealed gas box and components in the sealed gas box due to excessively high or low pressure, and improve the safety and service life of the ring network box.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment technology, and in particular to an environmentally friendly gas insulated ring network box. Background Art

[0002] As the world's demand for reducing greenhouse gas emissions and improving energy efficiency increases, the market demand for environmentally friendly gas-insulated ring mainframes is expected to continue to grow. Especially in the context of some countries and regions beginning to restrict or ban the use of traditional insulating gases such as SF6, the market potential for such products is huge.

[0003] Environmentally friendly gas insulated ring main unit is a ring main unit that uses environmentally friendly gas as the insulating medium. It achieves the environmental protection requirements of oil-free and SF6-free through a fully sealed design. This type of product usually uses natural gases such as dry air or nitrogen, as well as synthetic gases such as C4, C5 and their mixed gases as insulating media. Environmentally friendly gas is stored in a sealed gas box inside the switchgear, which plays the role of insulation and arc extinguishing to ensure the normal operation of the equipment.

[0004] During the use of traditional environmentally friendly gas insulated ring network boxes, when electrical components experience unexpected conditions such as aging, failure, sealing failure, poor heat dissipation, etc., the temperature in the sealed gas box rises abnormally, causing the environmentally friendly gas to expand. Although the pressure is not enough to reach the bursting pressure, the gas expansion can easily cause the sealed gas box to deform, affecting the sealing and structural safety of the sealed gas box. At the same time, when arcing faults occur due to short circuits, improper inflation, operational errors, etc., the sealed gas box has already deformed within a safe range before the environmentally friendly gas expands due to heat to reach the bursting pressure, affecting the subsequent use of the cabinet. Summary of the invention

[0005] In order to timely adjust the air pressure in the sealed air box, reduce the possibility of deformation and damage of the sealed air box, and improve the safety and service life of the ring network box, the present application provides an environmentally friendly gas insulated ring network box.

[0006] The environmentally friendly gas insulated ring network box provided in this application adopts the following technical solution:

[0007] An environmentally friendly gas insulated ring network box comprises a cabinet, a sealed gas box, an air inlet assembly and an air outlet assembly, the sealed gas box comprises a box body and a box door, the box body is connected to the cabinet, the box body is provided with a accommodating chamber, the box door is connected to the box body and covers the cavity opening of the accommodating chamber, the air inlet assembly and the air outlet assembly are both connected to the box body, the cavity wall of the accommodating chamber is provided with two communicating holes, the two communicating holes are respectively connected to the air inlet assembly and the air outlet assembly, the air inlet assembly enables the outside to take in air into the accommodating chamber, and the air outlet assembly enables the accommodating chamber to exhaust air to the outside.

[0008] By adopting the above technical solution, inflation and exhaust are carried out through the air inlet component and the air outlet component according to the air pressure in the accommodating cavity, so as to maintain a suitable working pressure in the sealed air box, reduce the possibility of damage to the sealed air box and components in the sealed air box due to excessively high or low pressure, and improve the safety and service life of the ring network box.

[0009] Preferably, the air intake assembly includes a first mounting cylinder, a first mounting cover, a first filter element, an air intake valve and a first air pump, one end of the first mounting cylinder is connected to the casing, the first mounting cylinder is connected to any connecting hole, the first mounting cover is connected to the other end of the first mounting cylinder, the first mounting cover is provided with an air intake hole, the air intake hole connects the outside and the inside of the first mounting cylinder, the first air pump is connected to the casing, the air outlet of the first air pump is connected to the air intake hole through a pipeline, the air intake of the first air pump is connected to an external gas cylinder through a pipeline, a first filter plate is connected to the inside of the first mounting cylinder, the first filter element is embedded in the inside of the first mounting cylinder, the first filter element is located between the first filter plate and the first mounting cover, the air intake valve is embedded in the first mounting cylinder, and the air intake valve is located on the first filter plate away from the first filter element On the other hand, the air outlet assembly includes a second mounting cylinder, a second mounting cover, a second filter element, an air outlet valve and a second air pump, one end of the second mounting cylinder is connected to the casing, the second mounting cylinder is connected to another connecting hole, the second mounting cover is connected to the other end of the second mounting cylinder, the second mounting cover is provided with an air outlet hole, the air outlet hole connects the outside and the inner side of the second mounting cylinder, the second air pump is connected to the casing, the air inlet of the second air pump is connected to the air outlet hole through a pipe, the air outlet of the second air pump is connected to the external gas cylinder through a pipe, the inner side of the second mounting cylinder is connected with a second filter plate, the second filter element is embedded in the inner side of the second mounting cylinder, the second filter element is located between the second filter plate and the second mounting cover, the air outlet valve is embedded in the second mounting cylinder, and the air outlet valve is located on the side of the second filter plate away from the second filter element.

[0010] By adopting the above technical scheme, the first air pump works to pass the environmentally friendly gas in the external gas cylinder into the first installation cylinder. After being filtered by the first filter element, the air inlet valve is driven to open, and the environmentally friendly gas enters the accommodating chamber through the connecting hole, thereby replenishing the air in the accommodating chamber. The second air pump works to make the side of the air outlet valve close to the second filter plate in a negative pressure state. The air outlet valve opens, so that the environmentally friendly gas in the accommodating chamber enters the second installation cylinder through the connecting hole, and then passes through the air outlet valve and the second filter element, and is transported to the external gas cylinder through the second air pump, thereby exhausting the air in the accommodating chamber and improving the safety and service life of the ring network box.

[0011] Preferably, a control component is further included, which includes a contact switch, a power supply component, a driving component and a third reset component, the power supply component is connected to the casing, the power supply component is electrically connected to the first air pump and the second air pump, the contact switch is connected to the casing, the contact switch is used to control the on and off of the circuits between the power supply component and the first air pump and the second air pump, the driving component is slidably connected to the casing, the sliding direction of the driving component is horizontal, one end of the driving component is used to abut the casing door, and the other end of the driving component is used to abut the contact switch, the third reset component is connected between the driving component and the casing, and the third reset component makes the driving component tend to move away from the contact switch.

[0012] By adopting the above technical solution, when the box door is closed, the driving member is pushed to slide and abuts against the contact switch, so that the circuits of the power supply component and the first air pump and the second air pump are connected, thereby avoiding the first air pump or the second air pump from working when the box door is not closed, causing waste of environmentally friendly gas, and improving the reliability of the ring network box.

[0013] Preferably, the control component also includes a pressure detection instrument, which is embedded in the accommodating cavity. The pressure detection instrument is used to detect the air pressure in the accommodating cavity and control the start and stop of the first air pump and the second air pump. The pressure detection instrument is electrically connected to the power supply component.

[0014] By adopting the above technical solution, the air pressure in the accommodating chamber is detected in real time by a pressure detection instrument. When the air pressure in the accommodating chamber is too high or too low, the second air pump or the first air pump is controlled in time to exhaust or replenish air in the accommodating chamber, thereby improving the safety of the ring network box.

[0015] Preferably, it also includes a sealing assembly, which includes an active rack, a gear, a driven rack, a sliding seat and a first annular capsule. A first annular groove is provided at the cavity wall of the accommodating cavity near one end of the box door. The sliding seat is slidably embedded in the first annular groove, and the outer wall of the sliding seat is in contact with the groove wall of the first annular groove. The first annular capsule is connected to a side of the sliding seat near the box door. A side surface of the first annular capsule away from the sliding seat is used to press against a side surface of the box door near the accommodating cavity. The active rack is connected to the driving member, and the gear is rotatably connected to the box body. The gear is meshed with the active rack, and the driven rack is connected to the sliding seat, and the driven gear is meshed with the gear.

[0016] By adopting the above technical solution, when the box door is closed, the driving member is pushed to slide, which drives the active rack to slide, drives the gear to rotate, drives the driven rack to slide, drives the sliding seat to slide, and drives the first ring bag to slide and abut the box door, thereby improving the sealing between the box body and the box door, reducing the possibility of environmental protection gas leakage from the connection between the box door and the box body, and improving the safety of the ring network box.

[0017] Preferably, the sealing assembly also includes a second annular bag, a second annular groove is provided on one side surface of the box body close to the box door, the second annular groove is arranged around the first annular groove, the second annular bag is embedded in the second annular groove, and a receiving groove is provided on one side surface of the box door close to the receiving cavity, and the receiving groove is used for the second annular bag to be embedded.

[0018] By adopting the above technical scheme, when the box door is connected to the box body to achieve the sealing of the accommodating chamber, one end of the second ring bag is embedded in the second ring groove, and the other end of the second ring bag is embedded in the accommodating groove, and the two ends of the second ring bag are respectively pressed against the second ring groove and the bottom of the accommodating groove to form a seal, thereby further improving the sealing stability between the box door and the box body, and the gas in the accommodating chamber is not easy to overflow from the connection between the box door and the box body, thereby improving the reliability of the ring network box.

[0019] Preferably, the sealing assembly also includes a push plate and a fourth reset member, the push plate being slidably embedded in the second annular groove, the push plate being used to abut against the inner wall of the second annular capsule, a plurality of push plates being provided, and the plurality of push plates being circumferentially spaced along the inner wall of the second annular capsule, the fourth reset member being connected between the push plate and the box body, the fourth reset member making the push plate have a tendency to fit the inner groove wall of the second annular groove, an air outlet channel being provided at the bottom of the second annular groove, the air outlet channel being used to connect the first annular groove and the second annular capsule, the sliding seat being provided with a first connecting channel, the first connecting channel being connected to the first annular capsule, and the first connecting channel being used to be connected to the air outlet channel.

[0020] By adopting the above technical solution, when the box door is connected to the box body and closes the accommodating chamber, the air outlet channel and the first connecting channel are connected, and when the abutment force between the first ring bag and the box door is reduced, the gas in the accommodating chamber enters between the first ring bag and the second ring bag, and the gas squeezes the push plate, and the push plate overcomes the elastic force of the fourth reset member to squeeze the second ring bag, and the gas in the second ring bag enters the first ring bag through the air outlet channel and the first connecting channel, so that the first ring bag is pressed against the box door, thereby enhancing the sealing between the first ring bag and the box door and improving the reliability of the ring network box.

[0021] Preferably, the sealing assembly also includes a first one-way valve and a second one-way valve, an air inlet channel is provided at the outer groove wall of the second annular groove, the air inlet channel connects the outside and the second annular capsule, the first one-way valve is embedded in the air inlet channel, the first one-way valve realizes one-way communication from the outside to the second annular capsule, the second one-way valve is embedded in the air outlet channel, the second one-way valve realizes one-way communication from the second annular capsule to the first annular groove.

[0022] By adopting the above technical solution, a first one-way valve and a second one-way valve are set to realize that the second ring bag is inflated into the first ring bag through the air outlet channel, and the thrust of the push plate on the second ring bag disappears. The gas in the first ring bag flows back into the second ring bag through the first connecting channel and the air outlet channel, so that the sealing performance of the first ring bag and the box door is reduced, and the push plate is required to squeeze the second ring bag again, which reduces the possibility of multiple squeezing of the push plate and the second ring bag, thereby increasing the service life of the second ring bag and improving the reliability of the ring mesh box.

[0023] Preferably, the sealing assembly also includes a slider, a fifth reset member and a valve, the first annular groove wall is provided with an embedding groove, the embedding groove is connected with the air outlet channel, the valve is embedded in the embedding groove, the valve is used to realize the opening and closing of the air outlet channel, the sliding seat is provided with a sliding groove near the outer wall, the first connecting channel is connected with the sliding groove, the slider is slidably embedded in the sliding groove, the sliding direction of the slider is perpendicular to the sliding direction of the sliding seat, the fifth reset member is connected between the slider and the sliding seat, the fifth reset member has a tendency to extend out of the sliding groove, the slider is provided with a second connecting channel, the second connecting channel is used to connect the air outlet channel and the first connecting channel, when the slider is embedded in the embedding groove, the second connecting channel is connected with the first connecting channel.

[0024] By adopting the above technical solution, when the box door does not close the accommodating cavity, the valve closes the air outlet channel, and the second connecting channel is offset from the first connecting channel, so that the second ring bag and the first ring bag are closed, reducing the possibility of impurities entering the first ring bag and the second ring bag, and improving the reliability of the ring network box. When the slide groove is aligned with the embedding groove, the slider is embedded in the embedding groove, and the slider abuts the valve, so that the valve opens, and the air outlet channel, the second connecting channel and the first connecting channel are connected.

[0025] Preferably, an embedding block is connected to one end of the slider close to the embedding groove, and a rounded corner is provided on the outer periphery of one end of the embedding block away from the slider, and the rounded corner is used to abut against the wall of the embedding groove.

[0026] By adopting the above technical solution, an embedding block is provided for embedding in the embedding groove, and the embedding block abuts the valve, so that the valve opens, and the air outlet channel is connected to the second connecting channel. A rounded corner is provided, so that when the sliding seat slides away from the box door, the rounded corner abuts the wall of the embedding groove, pushing the embedding block out of the embedding groove, thereby unlocking the sliding seat and the box body, closing the valve, closing the air outlet channel, and misaligning the second connecting channel with the first connecting channel, so that the first connecting channel is closed.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Inflate and exhaust the gas through the air inlet and outlet components according to the air pressure in the accommodating cavity to maintain a suitable working pressure in the sealed air box, reduce the possibility of damage to the sealed air box and components in the sealed air box due to excessively high or low pressure, and improve the safety and service life of the ring network box;

[0029] 2. When the box door is closed, the driving member is pushed to slide, and the driving member abuts against the contact switch, so that the circuits of the power supply component and the first air pump and the second air pump are connected, so as to avoid the first air pump or the second air pump working when the box door is not closed, resulting in waste of environmental protection gas, and improve the reliability of the ring network box;

[0030] 3. When the box door is connected to the box body and closes the accommodating chamber, the air outlet channel and the first connecting channel are connected. When the abutting force between the first ring bag and the box door is reduced, the gas in the accommodating chamber enters between the first ring bag and the second ring bag, and the gas squeezes the push plate. The push plate overcomes the elastic force of the fourth reset member to squeeze the second ring bag, and the gas in the second ring bag enters the first ring bag through the air outlet channel and the first connecting channel, so that the first ring bag is pressed against the box door, thereby enhancing the sealing between the first ring bag and the box door and improving the reliability of the ring network box. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the environmentally friendly gas insulated ring network box in Example 1.

[0032] Figure 2 It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 1, mainly showing the air intake components.

[0033] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0034] Figure 4 It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 1, mainly showing the gas outlet components.

[0035] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0036] Figure 6 It is a partial cross-sectional view of the environmentally friendly gas insulated ring mainframe box in Example 1, mainly showing the driving parts.

[0037] Figure 7 It is a partial cross-sectional view of the environmentally friendly gas insulated ring mainframe box in Example 1, mainly showing the sealing components.

[0038] Figure 8 It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 1, mainly showing the rotating shaft.

[0039] Fig. 9It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 1, mainly showing the driving rack, gear and driven rack.

[0040] Fig.10 It is a cross-sectional view of the environmentally friendly gas insulated ring network box in Example 1.

[0041] Fig.11 It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 2, mainly showing the box door closed.

[0042] Fig.12 It is a partial cross-sectional view of the environmentally friendly gas insulated ring network box in Example 2, mainly showing the box door open.

[0043] Description of reference numerals:

[0044] 1. Cabinet;

[0045] 2. Sealed air box; 21. Box body; 211. Accommodating chamber; 212. Communication hole; 213. First annular groove; 214. Second annular groove; 215. Air outlet channel; 216. Air inlet channel; 217. Embedding groove; 218. Driving groove; 219. Mounting groove; 2110. Transmission groove; 2111. Rotating groove; 2112. Fixed mark; 2113. Guide groove; 2114. Abutting groove; 22. Box door; 221. Accommodating groove; 23. Hinge;

[0046] 3. Intake assembly; 31. First mounting cylinder; 311. First filter plate; 312. First mounting ring; 3121. First mounting hole; 32. First mounting cover; 321. Intake hole; 322. First connecting groove; 323. First connecting pipe; 324. First protrusion; 33. First filter element; 34. Intake valve; 341. First partition plate; 3411. First closing groove; 3412. First connecting groove; 3413. First guide hole; 342. First closing plate; 343. First guide column; 344. First reset member; 345. First nut; 35. First air pump;

[0047] 4. Air outlet assembly; 41. Second mounting cylinder; 411. Second filter plate; 412. Second mounting ring; 4121. Second mounting hole; 42. Second mounting cover; 421. Air outlet hole; 422. Second connecting groove; 423. Second connecting pipe; 424. Second protrusion; 43. Second filter element; 44. Air outlet valve; 441. Second partition plate; 4411. Second closed groove; 4412. Second connecting groove; 4413. Second guide hole; 442. Second closed plate; 443. Second guide column; 444. Second reset member; 445. Second nut; 45. Second air pump;

[0048] 5. Control assembly; 51. Pressure detection instrument; 52. Contact switch; 53. Power supply component; 54. Driving member; 541. Connecting plate; 542. Abutting rod; 55. Third reset member;

[0049] 6. Sealing assembly; 61. Active rack; 62. Gear; 63. Driven rack; 64. Sliding seat; 641. First connecting channel; 642. Slide groove; 65. First annular capsule; 66. Second annular capsule; 67. Push plate; 671. Guide block; 68. Fourth reset member; 69. First one-way valve; 610. Second one-way valve; 611. Sliding block; 6111. Second connecting channel; 6112. Insert; 61121. Fillet; 612. Fifth reset member; 613. Valve; 614. Rotating shaft; 615. Turntable; 616. Indicator mark. DETAILED DESCRIPTION

[0050] The present application is further described in detail below in conjunction with the accompanying drawings.

[0051] The embodiment of the present application discloses an environmentally friendly gas insulated ring network box.

[0052] Example 1

[0053] Reference Figure 1 An environmentally friendly gas insulated ring network box includes a cabinet 1 and a sealed gas box 2. The sealed gas box 2 includes a box 21, a door 22 and a hinge 23. The box 21 is fixedly connected to one side of the cabinet 1 along the length direction of the cabinet 1. The box 21 is provided with a receiving cavity 211 on the side away from the cabinet 1 along the length direction of the cabinet 1. The door 22 is connected to the box 21 and covers the opening of the receiving cavity 211. The hinge 23 is fixedly connected to one side surface of the box 21 along the width direction of the cabinet 1. One end of the door 22 along the width direction of the door 22 is fixedly connected to the hinge 23. The hinge axis of the hinge 23 is vertical. There are a plurality of hinges 23, and the plurality of hinges 23 are spaced apart vertically. In this embodiment, there are three hinges 23, the hinge axes of the three hinges 23 coincide, and the three hinges 23 are evenly distributed vertically.

[0054] Reference Figure 1 and Figure 2, an environmentally friendly gas insulated ring network box also includes an air intake assembly 3, which includes a first mounting tube 31, a first mounting cover 32 and a first air pump 35. A connecting hole 212 is provided at the upper wall of the accommodating cavity 211, and the connecting hole 212 is connected to the outside. There are two connecting holes 212, and the two connecting holes 212 are symmetrically distributed along the width direction of the cabinet 1. The first mounting tube 31 is fixedly connected to the upper end of the box body 21, and the first mounting tube 31 is connected to the connecting hole 212 on the side away from the hinge 23, and the inner wall of the first mounting tube 31 is flush with the hole wall of the connecting hole 212. The outer periphery of the first mounting tube 31 is coaxially fixedly connected with a first mounting ring 312, and the first mounting ring 312 is provided with a first mounting hole 3121, and the first mounting hole 3121 is used for a bolt to pass through and then be threadedly connected to the box body 21. There are a plurality of first mounting holes 3121, and the plurality of first mounting holes 3121 are circumferentially spaced around the axis of the first mounting tube 31. In this embodiment, six first mounting holes 3121 are provided, and the six first mounting holes 3121 are evenly distributed around the axis of the first mounting tube 31. The first mounting cover 32 is provided with a first connecting groove 322, and one end of the first mounting tube 31 away from the box body 21 is embedded in the first connecting groove 322, and one end of the first mounting tube 31 away from the box body 21 abuts against the bottom of the first connecting groove 322, and the outer wall of the first mounting tube 31 is threadedly connected to the groove wall of the first connecting groove 322. A first connecting pipe 323 is coaxially fixedly connected to one side of the first mounting cover 32 away from the box body 21, and an air inlet hole 321 is coaxially provided at one end of the first connecting pipe 323 away from the box body 21, and the air inlet hole 321 is connected to the first connecting groove 322. The first air pump 35 is fixedly connected to the upper end of the box body 21. The first air pump 35 is located on the side of the first mounting tube 31 away from the box door 22. The air outlet of the first air pump 35 is connected to the air inlet 321 through a pipeline, and the air inlet of the first air pump 35 is connected to an external gas cylinder through a pipeline.

[0055] Reference Figure 2 and Figure 3The air intake assembly 3 further includes a first filter element 33 and an air intake valve 34. A first filter plate 311 is coaxially fixedly connected to the inner wall of the first mounting cylinder 31. The first filter element 33 is embedded in the first mounting cylinder 31. The outer wall of the first filter element 33 fits the inner wall of the first mounting cylinder 31. One end of the first filter element 33 abuts against a side surface of the first filter plate 311 close to the first mounting cover 32. The end of the first filter element 33 away from the first filter plate 311 is embedded in the first connecting groove 322. A first protrusion 324 is fixedly connected to the bottom of the first connecting groove 322. The first protrusion 324 is arc-shaped. The end of the first protrusion 324 away from the first connecting groove 322 abuts against the end of the first filter element 33 away from the first filter plate 311. A plurality of first protrusions 324 are provided, and the plurality of first protrusions 324 are circumferentially spaced around the axis of the air intake hole 321. In this embodiment, there are six first protrusions 324, which are evenly distributed around the axis of the air inlet hole 321, and there is a gap between the two adjacent first protrusions 324 along the circumferential direction of the first protrusion 324. The air inlet valve 34 includes a first partition 341, a first closing plate 342, a first guide column 343, a first reset member 344 and a first nut 345. The first partition 341 is coaxially embedded in the first installation cylinder 31, and the side wall of the first partition 341 fits the inner wall of the first installation cylinder 31. The first partition 341 is located on the side of the first filter plate 311 away from the first filter element 33. A first closed groove 3411 is coaxially provided on one side of the first partition 341 close to the first filter plate 311, and a plurality of first connecting grooves 3412 are provided at the bottom of the first closed groove 3411. The first connecting groove 3412 penetrates the first partition 341 along the axis direction of the first partition 341, and the plurality of first connecting grooves 3412 are circumferentially spaced around the axis of the first partition 341. In this embodiment, six first connecting grooves 3412 are provided, and the six first connecting grooves 3412 are evenly distributed around the axis of the first partition plate 341. The first closing plate 342 is coaxially slidably connected to the side of the first partition plate 341 close to the first filter plate 311, and the first closing plate 342 is used to be embedded in the first closing groove 3411 and cover the first connecting groove 3412. One end of the first guide column 343 is coaxially fixedly connected to the surface of the side of the first closing plate 342 away from the first filter plate 311, and the first guide hole 3413 is coaxially provided at the bottom of the first closing groove 3411. The other end of the first guide column 343 passes through the first guide hole 3413, and the side wall of the first guide column 343 fits the hole wall of the first guide hole 3413. The first nut 345 is threadedly connected to the end of the first guide column 343 away from the first closing plate 342. The first restoring member 344 is connected between the first nut 345 and the first partition plate 341 , and the first restoring member 344 makes the first closing plate 342 tend to be embedded in the first closing groove 3411 .In this embodiment, the first reset member 344 is a spring, and the first reset member 344 is sleeved on the outer periphery of the first guide column 343. One end of the first reset member 344 is connected to the side surface of the first partition 341 away from the first filter plate 311, and the other end of the first reset member 344 is connected to the side surface of the first nut 345 close to the first partition 341.

[0056] Reference Figure 1 and Figure 4 , an environmentally friendly gas insulated ring network box also includes an air outlet component 4, and the air outlet component 4 includes a second mounting tube 41, a second mounting cover 42 and a second air pump 45. The second mounting tube 41 is fixedly connected to the upper end of the box body 21, and the second mounting tube 41 is connected to the connecting hole 212 on the side close to the hinge 23, and the inner wall of the second mounting tube 41 is flush with the hole wall of the connecting hole 212. The outer periphery of the second mounting tube 41 is coaxially fixedly connected with a second mounting ring 412, and the second mounting ring 412 is provided with a second mounting hole 4121, and the second mounting hole 4121 is used for a bolt to pass through and then be threadedly connected with the box body 21. There are a plurality of second mounting holes 4121, and the plurality of second mounting holes 4121 are circumferentially spaced around the axis of the second mounting tube 41. In this embodiment, there are six second mounting holes 4121, and the six second mounting holes 4121 are evenly distributed circumferentially around the axis of the second mounting tube 41. The second mounting cover 42 is provided with a second connecting groove 422, one end of the second mounting tube 41 away from the box body 21 is embedded in the second connecting groove 422, one end of the second mounting tube 41 away from the box body 21 abuts against the bottom of the second connecting groove 422, and the outer wall of the second mounting tube 41 is threadedly connected to the wall of the second connecting groove 422. A second connecting pipe 423 is coaxially fixedly connected to the side of the second mounting cover 42 away from the box body 21, and an air outlet 421 is coaxially provided at one end of the second connecting tube 423 away from the box body 21, and the air outlet 421 is connected to the second connecting groove 422. The second air pump 45 is fixedly connected to the upper end of the box body 21, and the second air pump 45 is located on the side of the second mounting tube 41 away from the box door 22, and the air inlet of the second air pump 45 is connected to the air outlet 421 through a pipeline, and the air outlet of the second air pump 45 is connected to the external gas cylinder through a pipeline.

[0057] Reference Figure 4 and Figure 5, the air outlet assembly 4 also includes a second filter element 43 and an air outlet valve 44. A second filter plate 411 is coaxially fixedly connected to the inner wall of the second mounting cylinder 41, the second filter element 43 is embedded in the second mounting cylinder 41, the outer wall of the second filter element 43 fits the inner wall of the second mounting cylinder 41, one end of the second filter element 43 abuts against a side surface of the second filter plate 411 close to the second mounting cover 42, and the end of the second filter element 43 away from the second filter plate 411 is embedded in the second connecting groove 422. A second protrusion 424 is fixedly connected to the bottom of the second connecting groove 422, the second protrusion 424 is arc-shaped, and the end of the second protrusion 424 away from the second connecting groove 422 abuts against the end of the second filter element 43 away from the second filter plate 411. A plurality of second protrusions 424 are provided, and the plurality of second protrusions 424 are circumferentially spaced around the axis of the air outlet hole 421. In this embodiment, there are six second protrusions 424, and the six second protrusions 424 are evenly distributed around the axis of the air outlet 421, and there is a gap between the two adjacent second protrusions 424 along the circumferential direction of the second protrusion 424. The air outlet valve 44 includes a second partition plate 441, a second closing plate 442, a second guide column 443, a second reset member 444 and a second nut 445. The second partition plate 441 is coaxially embedded in the second mounting tube 41, and the side wall of the second partition plate 441 fits the inner wall of the second mounting tube 41. The second partition plate 441 is located on the side of the second filter plate 411 away from the second filter element 43. A second closed groove 4411 is coaxially provided on the side of the second partition plate 441 away from the second filter plate 411, and a plurality of second connecting grooves 4412 are provided at the bottom of the second closed groove 4411. The second connecting groove 4412 penetrates the second partition plate 441 along the axis direction of the second partition plate 441, and the plurality of second connecting grooves 4412 are circumferentially spaced around the axis of the second partition plate 441. In this embodiment, six second connecting grooves 4412 are provided, and the six second connecting grooves 4412 are evenly distributed around the axis of the second partition plate 441. The second closing plate 442 is coaxially slidably connected to the side of the second partition plate 441 away from the second filter plate 411, and the second closing plate 442 is used to be embedded in the second closing groove 4411 and cover the second connecting groove 4412. One end of the second guide column 443 is coaxially fixedly connected to the side surface of the second closing plate 442 close to the second filter plate 411, and the second guide hole 4413 is coaxially provided at the bottom of the second closing groove 4411. The other end of the second guide column 443 passes through the second guide hole 4413, and the side wall of the second guide column 443 fits the hole wall of the second guide hole 4413. The second nut 445 is threadedly connected to the end of the second guide column 443 away from the second closing plate 442. The second restoring member 444 is connected between the second nut 445 and the second partition plate 441 . The second restoring member 444 allows the second closing plate 442 to have a tendency to be embedded in the second closing groove 4411 .In this embodiment, the second reset member 444 adopts a spring, and the second reset member 444 is sleeved on the outer periphery of the second guide column 443. The two ends of the first reset member 344 are connected to the side surface of the second partition plate 441 close to the second filter plate 411, and the other end of the second reset member 444 is connected to the side surface of the second nut 445 close to the second partition plate 441.

[0058] Reference Figure 1 and Figure 6 , an environmentally friendly gas insulated ring network box also includes a control component 5. The control component 5 includes a pressure detection instrument 51, a power supply component 53, a contact switch 52, a driving component 54 and a third reset component 55. The pressure detection instrument 51 is fixedly connected to the bottom of the accommodating chamber 211, and the pressure detection instrument 51 is used to detect the pressure in the accommodating chamber 211 and control the start and stop of the first air pump 35 or the second air pump 45. The power supply component 53 is fixedly connected to the upper end of the box body 21, and the power supply component 53 is electrically connected to the first air pump 35, the second air pump 45 and the pressure detection instrument 51. The box body 21 is provided with a driving groove 218, and the driving groove 218 is located on the side of the box body 21 away from the hinge 23. The driving member 54 includes a connecting plate 541 and an abutting rod 542. The connecting plate 541 is slidably embedded in the driving groove 218. The sliding direction of the connecting plate 541 is parallel to the length direction of the cabinet 1. The driving groove 218 is provided with an abutting groove 2114 at a groove wall on one side close to the box door 22. The abutting groove 2114 is connected to the outside. There are two abutting grooves 2114, which are symmetrically distributed along the vertical direction. One end of the abutting rod 542 is fixedly connected to a side of the connecting plate 541 close to the box door 22. The other end of the abutting rod 542 passes through the abutting groove 2114 and then extends out of the box 21. The end of the abutting rod 542 away from the connecting plate 541 is used to abut against the box door 22. The third reset member 55 is connected between the connecting plate 541 and the box 21. The third reset member 55 makes the end of the abutting rod 542 away from the connecting plate 541 have a tendency to extend out of the abutting groove 2114. In this embodiment, the third reset member 55 is a spring, one end of the third reset member 55 is connected to one end of the connecting plate 541 close to the abutting rod 542, and the other end of the third reset member 55 is connected to the groove wall of the driving groove 218 close to the box door 22. There are five third reset members 55, and the five third reset members 55 are evenly distributed along the vertical direction. The groove wall of the driving groove 218 away from the box door 22 is provided with a mounting groove 219, and the contact switch 52 is embedded in the mounting groove 219. The contact switch 52 is used to abut against the end of the connecting plate 541 away from the box door 22, and the contact switch 52 is used to control the on-off of the power supply component 53 and the first air pump 35, the second air pump 45 and the pressure detection instrument 51 circuit.

[0059] Reference Figure 1 and Figure 7An environmentally friendly gas insulated ring network box also includes a sealing component 6, which includes a sliding seat 64 and a first ring capsule 65. A first ring groove 213 is provided at the cavity wall of the accommodating cavity 211 near one end of the box door 22, and the sliding seat 64 is slidably embedded in the first ring groove 213. The sliding direction of the sliding seat 64 is parallel to the length direction of the cabinet 1, and the outer wall of the sliding seat 64 is in contact with the groove wall of the first ring groove 213. The first ring capsule 65 is fixedly connected to a side of the first sliding seat 64 near the box door 22, and a side surface of the first ring capsule 65 away from the sliding seat 64 is used to press against a side surface of the box door 22 near the accommodating cavity 211.

[0060] Reference Figure 8 and Fig. 9 A transmission groove 2110 is provided at a groove wall of one side of the driving groove 218 close to the first ring groove 213, and the transmission groove 2110 is connected to the first ring groove 213. There are a plurality of transmission grooves 2110, and the plurality of transmission grooves 2110 are distributed at intervals along the vertical direction. In this embodiment, there are two transmission grooves 2110, and the two transmission grooves 2110 are symmetrically distributed along the vertical direction. The sealing assembly 6 also includes a driving rack 61, a gear 62 and a driven rack 63. The number of active racks 61, gears 62 and driven racks 63 is the same as the number of transmission grooves 2110 and corresponds one to one. The active rack 61 is fixedly connected to a side surface of the connecting plate 541 close to the transmission groove 2110, and the active rack 61 is slidably embedded in the transmission groove 2110, and the sliding direction of the active rack 61 is parallel to the sliding direction of the connecting plate 541. The gear 62 is rotatably embedded in the transmission groove 2110, and the rotation axis of the gear 62 is vertical. The gear 62 is meshed with the active rack 61, and the driven rack 63 is fixedly connected to the outer wall of the sliding seat 64, and the driven rack 63 is slidably embedded in the transmission groove 2110, and the sliding direction of the driven rack 63 is parallel to the sliding direction of the sliding seat 64, and the driven rack 63 is meshed with the gear 62. The gear 62 is coaxially fixedly connected with a rotating shaft 614, the upper end of the rotating shaft 614 penetrates the box body 21 and then extends out of the box body 21, the upper end of the rotating shaft 614 is coaxially fixedly connected with a rotating disk 615, the upper end of the box body 21 is provided with a rotating groove 2111, the rotating disk 615 is coaxially rotatably embedded in the rotating groove 2111, the outer wall of the rotating disk 615 is in contact with the groove wall of the rotating groove 2111, the side of the rotating disk 615 away from the rotating groove 2111 is provided with an indication mark 616, and the upper end of the box body 21 is provided with a fixed mark 2112. In this embodiment, when the box door 22 is completely closed, the contact switch 52 is closed, the first ring capsule 65 is pressed against the box door 22, and the indication mark 616 is aligned with the fixed mark 2112.

[0061] Reference Figure 7 and Fig.10The sealing assembly 6 further includes a second annular capsule 66, a push plate 67 and a fourth reset member 68. A second annular groove 214 is provided on a side surface of the box body 21 close to the box door 22, and the second annular groove 214 is arranged around the first annular groove 213. One end of the second annular capsule 66 is embedded in the second annular groove 214, and the outer wall of the second annular capsule 66 is in contact with the outer groove wall of the second annular groove 214. A receiving groove 221 is provided on a side surface of the box door 22 close to the receiving cavity 211, and the receiving groove 221 is annular. One end of the second annular capsule 66 away from the bottom of the second annular groove 214 is embedded in the receiving groove 221, and one end of the second annular capsule 66 away from the bottom of the second annular groove 214 is pressed against the bottom of the receiving groove 221. The push plate 67 is slidably embedded in the second annular groove 214, and the sliding direction of the push plate 67 is perpendicular to the sliding direction of the sliding seat 64. One end of the second push plate 67 away from the bottom of the second annular groove 214 extends into the receiving groove 221. In this embodiment, four push plates 67 are provided, and the four push plates 67 are divided into two groups. The sliding direction of one group of push plates 67 is vertical, and the sliding direction of the other group of push plates 67 is parallel to the width direction of the cabinet 1. The two push plates 67 in the same group are symmetrically distributed along the sliding direction of the push plates 67. The side surface of the push plate 67 away from the first annular groove 213 is used to abut against the inner wall of the second annular bag 66. The fourth reset member 68 is connected between the push plate 67 and the box body 21, and the fourth reset member 68 makes the push plate 67 have a tendency to fit the inner groove wall of the second annular groove 214. In this embodiment, a guide block 671 is fixedly connected to the surface of one side of the push plate 67 away from the second annular capsule 66. Three guide blocks 671 are provided, and the three guide blocks 671 are evenly distributed along the length direction of the push plate 67. A guide groove 2113 is provided on the inner groove wall of the second annular groove 214. The number of guide grooves 2113 and the fourth reset member 68 is the same as the number of guide blocks 671 and corresponds one to one. The guide block 671 is slidably embedded in the guide groove 2113. The sliding direction of the guide block 671 is parallel to the sliding direction of the push plate 67. The side wall of the guide block 671 is in contact with the groove wall of the guide groove 2113. The fourth reset member 68 adopts a spring. One end of the fourth reset member 68 is connected to one end of the guide block 671 away from the push plate 67, and the other end of the fourth reset member 68 is connected to the bottom of the guide groove 2113.

[0062] Reference Figure 7The sealing assembly 6 further includes a first one-way valve 69 and a second one-way valve 610. An air inlet channel 216 is provided at the outer groove wall of the second annular groove 214, and the air inlet channel 216 connects the second annular capsule 66 and the outside. The first one-way valve 69 is embedded in the air inlet channel 216, and the first one-way valve 69 realizes a one-way communication from the outside to the second annular capsule 66. An air outlet channel 215 is provided at the bottom of the second annular groove 214, and the air outlet channel 215 connects the second air bag and the first annular groove 213. The sliding seat 64 is provided with a first connecting channel 641, and the first connecting channel 641 is used to connect the first annular capsule 65 and the air outlet channel 215. The second one-way valve 610 is embedded in the first annular groove 213, and the second one-way valve 610 realizes a one-way communication from the second annular capsule 66 to the first annular groove 213. In this embodiment, the air inlet channel 216 is equipped with one, the number of first one-way valves 69 is the same as the number of air inlet channels 216 and corresponds one to one, the number of air outlet channels 215 is the same as the number of guide grooves 2113 and corresponds one to one, and the number of second one-way valves 610 and the first connecting channel 641 is the same as the number of air outlet channels 215 and corresponds one to one.

[0063] The implementation principle of Example 1 is as follows: the box door 22 is closed, the box door 22 abuts the driving member 54, and the driving member 54 is pushed to overcome the elastic force of the third reset member 55 and embed into the driving groove 218, the driving member 54 abuts the contact switch 52, the contact switch 52 is closed, and the power supply component 53 is connected to the circuits of the first air pump 35, the second air pump 45 and the pressure detection instrument 51. When the air pressure in the accommodating chamber 211 is higher than the critical value, the pressure detection instrument 51 sends a signal to the second air pump 45, and the second air pump 45 works to pump the environmentally friendly gas in the accommodating chamber 211 into the external gas cylinder. When the air pressure in the accommodating chamber 211 is lower than the critical value, the pressure detection instrument 51 sends a signal to the first air pump 35, and the first air pump 35 works to send the environmentally friendly gas in the external gas cylinder into the accommodating chamber 211.

[0064] When the sealing between the first annular bag 65 and the box door 22 decreases, the environmentally friendly gas in the accommodating chamber 211 squeezes the push plate 67, and the push plate 67 squeezes the second annular bag 66. The gas in the second annular bag 66 enters the first annular bag 65 through the air outlet channel 215 and the first connecting channel 641, thereby improving the sealing performance between the first annular bag 65 and the box door 22.

[0065] Example 2

[0066] Reference Fig.11 and Fig.12The difference between this embodiment and embodiment 1 is that the sealing assembly 6 further includes a slider 611, a fifth reset member 612 and a valve 613. An outlet channel 215 is provided at the bottom of the second annular groove 214, and the outlet channel 215 is connected to the first annular groove 213. The number of the outlet channels 215 is the same as the number of the guide grooves 2113 and corresponds one to one. An embedded groove 217 is provided at the groove wall of the first annular groove 213, and the axis of the embedded groove 217 coincides with the axis of the outlet channel 215. The number of valves 613 is the same as the number of the embedded groove 217 and corresponds one to one. The valve 613 is embedded in the embedded groove 217, and the outer wall of the valve 613 is in contact with the groove wall of the embedded groove 217. The valve 613 is used to realize the opening and closing of the outlet channel 215, and a cross opening is provided in the middle of the valve 613. A slide groove 642 is provided on the outer wall of the sliding seat 64, and the first connecting channel 641 is connected to the slide groove 642. The number of the slide grooves 642, the slider 611 and the fifth reset member 612 is the same as the number of the embedded grooves 217 and corresponds to each other. The slider 611 is slidably embedded in the slide groove 642, and the sliding direction of the slider 611 is perpendicular to the sliding direction of the sliding seat 64. The side wall of the slider 611 fits the groove wall of the slide groove 642. The fifth reset member 612 is connected between the sliding seat 64 and the slider 611, and the fifth reset member 612 makes the slider 611 have a tendency to extend out of the slide groove 642. In this embodiment, the fifth reset member 612 adopts a spring, one end of the fifth reset member 612 is connected to one end of the slider 611 close to the bottom of the slide groove 642, and the other end of the fifth reset member 612 is connected to the bottom of the slide groove 642. The end of the slider 611 away from the bottom of the slide groove 642 is fixedly connected with an insert 6112, and the insert 6112 is used to be embedded in the embedding groove 217. The outer periphery of the end of the insert 6112 away from the slider 611 is provided with a rounded corner 61121, and the rounded corner 61121 is used to abut against the groove wall of the embedding groove 217. The end of the insert 6112 away from the slider 611 is provided with a second connecting channel 6111, and the second connecting channel 6111 is used to connect the air outlet channel 215 and the first connecting channel 641. In this embodiment, when the door 22 is opened, the slider 611 is embedded in the slide groove 642, the second connecting channel 6111 is not connected with the first connecting channel 641, the valve 613 is closed, and the air outlet channel 215 is not connected with the first annular groove 213. When the embedded block 6112 is embedded in the embedded groove 217 , the embedded block 6112 abuts against the valve 613 , and the air outlet channel 215 , the second connecting channel 6111 and the first connecting channel 641 are connected.

[0067] The implementation principle of Example 2 is as follows: when the door 22 is closed, the sliding seat 64 slides, driving the first airbag to slide against the door 22, the sliding groove 642 is aligned with the embedding groove 217, and the embedding block 6112 is embedded in the embedding groove 217 under the action of the elastic force of the fifth reset member 612, and the embedding block 6112 abuts against the valve 613, and the valve 613 opens, so that the air outlet channel 215, the second connecting channel 6111 and the first connecting channel 641 are connected.

[0068] When the door 22 is opened, the sliding seat 64 slides away from the door 22, driving the slider 611 to slide, the fillet 61121 abuts against the wall of the slot 217, the slider 611 is embedded in the slot 642, and the first connecting channel 641 is disconnected from the second connecting channel 6111. The valve 613 is closed, and the air outlet channel 215 is closed.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An environmentally friendly gas insulated ring network box, characterized by: The invention comprises a cabinet (1), a sealed air box (2), an air inlet assembly (3) and an air outlet assembly (4); the sealed air box (2) comprises a box body (21) and a box door (22); the box body (21) is connected to the cabinet (1); the box body (21) is provided with a receiving chamber (211); the box door (22) is connected to the box body (21) and covers the opening of the receiving chamber (211); the air inlet assembly (3) and the air outlet assembly (4) are both connected to the box body (21); the wall of the receiving chamber (211) is provided with two communicating holes (212); the two communicating holes (212) are respectively connected to the air inlet assembly (3) and the air outlet assembly (4); the air inlet assembly (3) enables air to be taken in from the outside into the receiving chamber (211); the air outlet assembly (4) enables air to be discharged from the receiving chamber (211) to the outside; The air intake assembly (3) comprises a first mounting tube (31), a first mounting cover (32), a first filter element (33), an air intake valve (34) and a first air pump (35); one end of the first mounting tube (31) is connected to the housing (21); the first mounting tube (31) is connected to any one of the communication holes (212); the first mounting cover (32) is connected to the other end of the first mounting tube (31); the first mounting cover (32) is provided with an air intake hole (321); the air intake hole (321) is connected to the outside and the inside of the first mounting tube (31); the first air pump (35) is connected to the housing (21); 21); the air outlet of the first air pump (35) is connected to the air inlet (321) through a pipeline; the air inlet of the first air pump (35) is connected to an external gas cylinder through a pipeline; the first filter plate (311) is connected to the inner side of the first installation cylinder (31); the first filter element (33) is embedded in the inner side of the first installation cylinder (31); the first filter element (33) is located between the first filter plate (311) and the first installation cover (32); the air inlet valve (34) is embedded in the first installation cylinder (31); the air inlet valve (34) is located on a side of the first filter plate (311) away from the first filter element (33); The air outlet assembly (4) comprises a second mounting tube (41), a second mounting cover (42), a second filter element (43), an air outlet valve (44) and a second air pump (45); one end of the second mounting tube (41) is connected to the housing (21); the second mounting tube (41) is connected to another connecting hole (212); the second mounting cover (42) is connected to the other end of the second mounting tube (41); the second mounting cover (42) is provided with an air outlet hole (421); the air outlet hole (421) is connected to the outside and the inside of the second mounting tube (41); the second air pump (45) is connected to the housing (21); the air inlet of the second air pump (45) is connected to the air outlet (421) through a pipeline; the air outlet of the second air pump (45) is connected to an external gas cylinder through a pipeline; the inner side of the second mounting cylinder (41) is connected to a second filter plate (411); the second filter element (43) is embedded in the inner side of the second mounting cylinder (41); the second filter element (43) is located between the second filter plate (411) and the second mounting cover (42); the air outlet valve (44) is embedded in the second mounting cylinder (41); the air outlet valve (44) is located on a side of the second filter plate (411) away from the second filter element (43).

2. The environmentally friendly gas insulated ring mainframe according to claim 1, characterized in that: The control assembly (5) further comprises a control assembly (5); the control assembly (5) comprises a contact switch (52), a power supply component (53), a driving component (54) and a third reset component (55); the power supply component (53) is connected to the housing (21); the power supply component (53) is electrically connected to the first air pump (35) and the second air pump (45); the contact switch (52) is connected to the housing (21); the contact switch (52) is used to control the power supply component (53) to communicate with the first air pump (35) and the second air pump (45); The pump (45) circuit is turned on and off; the driving member (54) is slidably connected to the housing (21); the sliding direction of the driving member (54) is horizontal; one end of the driving member (54) is used for abutting against the housing door (22); the other end of the driving member (54) is used for abutting against the contact switch (52); the third reset member (55) is connected between the driving member (54) and the housing (21); and the third reset member (55) causes the driving member (54) to have a tendency to move away from the contact switch (52).

3. The environmentally friendly gas insulated ring mainframe according to claim 2, characterized in that: The control component (5) further comprises a pressure detection instrument (51); the pressure detection instrument (51) is embedded in the accommodating cavity (211); the pressure detection instrument (51) is used to detect the air pressure in the accommodating cavity (211) and control the start and stop of the first air pump (35) and the second air pump (45); the pressure detection instrument (51) is electrically connected to the power supply component (53).

4. The environmentally friendly gas insulated ring mainframe according to claim 2, characterized in that: The invention also comprises a sealing assembly (6); the sealing assembly (6) comprises a driving rack (61), a gear (62), a driven rack (63), a sliding seat (64) and a first annular capsule (65); a first annular groove (213) is provided at a cavity wall of the accommodating cavity (211) close to one end of the box door (22); the sliding seat (64) is slidably embedded in the first annular groove (213); an outer wall of the sliding seat (64) is in contact with a groove wall of the first annular groove (213); the first annular capsule (65) is connected to the sliding seat ( 64) is close to the side of the box door (22); the side surface of the first ring bag (65) away from the sliding seat (64) is used to press against the side surface of the box door (22) close to the accommodating chamber (211); the active rack (61) is connected to the driving member (54); the gear (62) is rotatably connected to the box body (21); the gear (62) is meshed with the active rack (61); the driven rack (63) is connected to the sliding seat (64); the driven rack (63) is meshed with the gear (62).

5. The environmentally friendly gas insulated ring mainframe according to claim 4, characterized in that: The sealing assembly (6) further comprises a second annular capsule (66); a second annular groove (214) is provided on a side surface of the box body (21) close to the box door (22); the second annular groove (214) is arranged around the first annular groove (213); the second annular capsule (66) is embedded in the second annular groove (214); a receiving groove (221) is provided on a side surface of the box door (22) close to the receiving cavity (211); the receiving groove (221) is used for the second annular capsule (66) to be embedded.

6. The environmentally friendly gas insulated ring mainframe according to claim 5, characterized in that: The sealing assembly (6) further comprises a push plate (67) and a fourth reset member (68); the push plate (67) is slidably embedded in the second annular groove (214); the push plate (67) is used to abut against the inner wall of the second annular capsule (66); a plurality of push plates (67) are provided; the plurality of push plates (67) are distributed at intervals along the circumferential direction of the inner wall of the second annular capsule (66); the fourth reset member (68) is connected between the push plate (67) and the housing (21); the fourth reset member (68) enables the push plate (67) has a tendency to fit the inner groove wall of the second annular groove (214); the bottom of the second annular groove (214) is provided with an air outlet channel (215); the air outlet channel (215) is used to connect the first annular groove (213) and the second annular capsule (66); the sliding seat (64) is provided with a first connecting channel (641); the first connecting channel (641) is connected to the first annular capsule (65); the first connecting channel (641) is used to connect to the air outlet channel (215).

7. The environmentally friendly gas insulated ring mainframe according to claim 6, characterized in that: The sealing assembly (6) further comprises a first one-way valve (69) and a second one-way valve (610); an air inlet passage (216) is provided at the outer groove wall of the second annular groove (214); the air inlet passage (216) is connected to the outside and the second annular capsule (66); the first one-way valve (69) is embedded in the air inlet passage (216); the first one-way valve (69) realizes one-way communication from the outside to the second annular capsule (66); the second one-way valve (610) is embedded in the air outlet passage (215); the second one-way valve (610) realizes one-way communication from the second annular capsule (66) to the first annular groove (213).

8. The environmentally friendly gas insulated ring mainframe according to claim 6, characterized in that: The sealing assembly (6) further comprises a slider (611), a fifth reset member (612) and a valve (613); an embedding groove (217) is provided on the groove wall of the first annular groove (213); the embedding groove (217) is communicated with the air outlet channel (215); the valve (613) is embedded in the embedding groove (217); the valve (613) is used to realize the opening and closing of the air outlet channel (215); a sliding groove (642) is provided near the outer wall of the sliding seat (64); the first connecting channel (641) is communicated with the sliding groove (642); the slider (611) is slidably embedded in the sliding groove (642); the The sliding direction of the slider (611) is perpendicular to the sliding direction of the sliding seat (64); the fifth restoring member (612) is connected between the slider (611) and the sliding seat (64); the fifth restoring member (612) has a tendency to extend out of the sliding groove (642); the slider (611) is provided with a second connecting channel (6111); the second connecting channel (6111) is used to connect the air outlet channel (215) and the first connecting channel (641); when the slider (611) is embedded in the embedding groove (217), the second connecting channel (6111) is connected to the first connecting channel (641).

9. The environmentally friendly gas insulated ring mainframe according to claim 8, characterized in that: An end of the sliding block (6111) close to the embedding groove (217) is connected to an embedding block (6112); an end of the embedding block (6112) away from the sliding block (611) is provided with a rounded corner (61121) on its outer periphery; the rounded corner (61121) is used to abut against the groove wall of the embedding groove (217).

Images