An environmentally friendly gas ring main unit with interlocking function

Abstract

The present invention provides an environmentally friendly gas ring network cabinet with an interlocking function, which relates to the field of ring network cabinets, including: a ring network cabinet, wherein a card frame is arranged inside and a switch is installed on the card frame; a rotating guide rail, which is fixedly installed on the inner wall of the ring network cabinet, and the whole is a quarter circle; a locking rod assembly, which is slidably installed on the inner wall of the rotating guide rail, and can slide upward along the direction of the rotating guide rail to the upper middle position of the switch; a self-locking guide rail, which is fixedly installed on the side of the ring network cabinet close to the cabinet door; a driving arm, which is slidably installed on the inner wall of the self-locking guide rail, and its front end is linked with the locking rod assembly through a connecting rod connected by a pin shaft. The driving arm of the present invention can slide in the self-locking guide rail, and when the driving arm slides to the bottom of the self-locking guide rail, the locking rod assembly is located at the bottom of the switch, and when self-locking is required, the driving arm is pushed, and when the sliding rod is locked in the self-locking assembly, the driving arm is fixed, and the connecting rod pushes the locking rod assembly to slide in the rotating guide rail to the upper middle position of the switch, and the switch cannot be opened.

Description

Technical Field

[0001] The present invention relates to the field of ring network cabinets, and in particular to an environmentally friendly gas ring network cabinet with a chain function. Background Art

[0002] Gas insulated ring main unit is a high-voltage switchgear used in power distribution systems. It adopts gas insulation technology, uses SF6 gas as the insulating medium and arc extinguishing technology to achieve compact design and reliable operation of high-voltage equipment. Gas insulated ring main unit is mainly composed of gas insulated switch, transformer, circuit breaker, load switch, measuring instrument, etc. It can effectively isolate high-voltage equipment from the external environment and provide higher safety and reliability. Gas insulated ring main unit has now replaced traditional high-voltage distribution cabinets and has been widely used in power equipment.

[0003] Since the power distribution cabinet is generally connected to the external transmission line with high voltage, it is necessary to disconnect the switch (such as load switch, isolating switch, etc.) to cut off the power supply during maintenance operations, otherwise it is easy to cause danger. In order to prevent the switch from being operated incorrectly, it is necessary to use a self-locking structure to lock the electrical components in the ring network cabinet to avoid misoperation by personnel and ensure the safety of construction personnel. Therefore, we have made improvements to this and proposed an environmentally friendly gas ring network cabinet with interlocking function. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly gas ring network cabinet with an interlocking function, which solves the problem that construction workers are prone to accidentally touch switches during maintenance, causing safety accidents.

[0005] In order to achieve the above-mentioned invention object, the present invention provides an environmental protection gas ring network cabinet with interlocking function, comprising:

[0006] The ring main unit has a card rack inside which a switch is installed;

[0007] The rotating guide rail is fixedly installed on the inner wall of the ring main unit, and its overall shape is a quarter circle;

[0008] The lock rod assembly is slidably mounted on the inner wall of the rotating guide rail and can slide upward along the direction of the rotating guide rail to the upper middle position of the switch;

[0009] Self-locking guide rail, fixedly installed on the side of the ring main unit close to the cabinet door;

[0010] The driving arm is slidably mounted on the inner wall of the self-locking guide rail, and its front end is linked with the locking rod assembly through a connecting rod connected by a pin shaft;

[0011] The environmental protection gas supply component is arranged at the bottom of the ring main unit and is used to fill the ring main unit with environmental protection gas;

[0012] The trigger mechanism is installed on the cabinet door of the ring main cabinet and is used to start the environmental protection gas supply component.

[0013] As a preferred technical solution of the present invention, the locking rod assembly includes a rotating slider slidably mounted on the inner side wall of the rotating guide rail, one side of the rotating slider is fixedly connected to a locking shaft, the outer wall of the locking shaft is sleeved with a ratchet, and the outer wall of the ratchet is fixedly connected to a limited position impeller;

[0014] Among them, the outer wall of the lock shaft is also fixedly connected to a retaining frame, the outer wall of the retaining frame is rotatably connected to a pawl, the pawl is elastically matched with the retaining frame through a spring, and the limiting impeller can rotate counterclockwise on the outer wall of the lock shaft through the ratchet.

[0015] As a preferred technical solution of the present invention, the retaining frame includes a positioning arm, which is rotatably connected to the inner wall of the ring network cabinet through a positioning shaft, and the locking shaft slides on the inner wall of the rotating guide rail with the positioning shaft as the axis through a rotating slider.

[0016] As a preferred technical solution of the present invention, the driving arm is L-shaped as a whole, and a sliding rod is rotatably connected at the end point of the short arm of the driving arm, and the sliding rod is slidably connected to the self-locking guide rail. The long arm of the driving arm is rotatably connected to the connecting rod, and one end of the connecting rod is rotatably connected to the retaining frame. A self-locking component for fixing the sliding rod is also provided on the self-locking guide rail, and a fixed-point axis is provided at the position where the long arm and the short arm are connected, and the fixed-point axis is rotatably coordinated with the ring network cabinet.

[0017] As a preferred technical solution of the present invention, the self-locking assembly includes a guide rod fixedly connected to the self-locking guide rail and a clamping rod rotatably connected to the self-locking guide rail through a pin shaft, and the inner walls of the clamping rod and the guide rod form a clamping groove adapted to the slide rod;

[0018] The clamping rod and the guide rod are elastically matched via a return spring;

[0019] The top of the guide rod is provided with an anti-rotation protrusion, the bottom end of the clamping rod is provided with an anti-separation protrusion, and the outer wall of the slide rod is respectively provided with grooves matching the anti-rotation protrusion and the anti-separation protrusion.

[0020] As a preferred technical solution of the present invention, the environmental protection gas supply assembly includes a gas storage box fixedly connected to the bottom wall of the ring main unit, and the gas storage box is used to store environmental protection gas;

[0021] The environmental protection gas supply assembly also includes a piston tube arranged on the bottom wall of the ring network cabinet, and the inner wall of the piston tube is slidably connected to a piston rod. Two hoses with one-way valves are respectively connected to the piston tube, one hose is used to extract gas, and the other hose is used to exhaust gas. The hose for exhausting gas is connected to a shunt pipe, and the hose for extracting gas is connected to the gas storage tank.

[0022] As a preferred technical solution of the present invention, an injection pipe is also provided on one side of the air storage box, and one end of the injection pipe passes through the ring network cabinet and is threadedly connected with a threaded cap. A support spring is also fixedly connected between the piston tube and the piston rod, and the support spring is used to support the piston rod to move in a direction away from the piston tube.

[0023] As a preferred technical solution of the present invention, the gas outlet end of the diverter pipe is arranged toward the bottom wall of the ring main unit.

[0024] As a preferred technical solution of the present invention, the trigger mechanism includes an electric push rod fixedly connected to the ring main cabinet door, the output end of the electric push rod is fixedly connected to a grab hook, and the grab hook is made of an elastic soft steel bracket.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In the scheme of the present invention:

[0027] By setting the rotating guide rail, the locking rod assembly, the self-locking guide rail and the driving arm, the driving arm can slide in the self-locking guide rail. When the driving arm slides to the bottom of the self-locking guide rail, the locking rod assembly is located at the bottom of the switch and will not have any impact. When self-locking is required, the driving arm is pushed. When the sliding rod is locked in the self-locking assembly, the driving arm is fixed. At this time, the connecting rod pushes the locking rod assembly to slide in the rotating guide rail to the middle and upper position of the switch. At this time, the switch cannot be opened upward. At this time, the energized switch is in a closable state. When the switch automatically cuts off the power, it will drive the limit impeller and the ratchet to rotate counterclockwise. However, due to the presence of the ratchet, the limit impeller cannot rotate clockwise, that is, the switch cannot be opened. When unlocking is required, the card rod is pressed, and the card rod opens outward relative to the guide rod, the sliding rod is in an unlocked state, and each component is reset to its original state, thereby achieving the purpose of one-button unlocking. The entire locking and unlocking operation steps are relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the overall structure of an environmentally friendly gas ring main unit with interlocking function provided by the present invention;

[0029] Figure 2 A schematic diagram of the structure of an environmentally friendly gas ring main unit with interlocking function provided by the present invention in an open state;

[0030] Figure 3 A schematic diagram of the main structure of an environmentally friendly gas ring main unit with interlocking function provided by the present invention;

[0031] Figure 4 A schematic diagram of the side structure of an environmentally friendly gas ring main unit with interlocking function provided by the present invention;

[0032] Figure 5 A schematic structural diagram of a switch box lock rod assembly of an environmentally friendly gas ring main unit with an interlocking function provided by the present invention;

[0033] Figure 6 A schematic diagram of the partial structure of a locking rod assembly in an environmentally friendly gas ring main unit with interlocking function provided by the present invention;

[0034] Figure 7 A schematic structural diagram of a self-locking guide rail and a self-locking assembly in an environmentally friendly gas ring main unit with an interlocking function provided by the present invention;

[0035] Figure 8 A schematic structural diagram of a self-locking component in an environmentally friendly gas ring main unit with an interlocking function provided by the present invention;

[0036] Fig. 9 A schematic diagram of the locking state structure of a self-locking component and a sliding rod in an environmentally friendly gas ring network cabinet with an interlocking function provided by the present invention.

[0037] Indicated in the figure:

[0038] 1. Ring main unit; 11. Switch;

[0039] 2. Rotating guide rail;

[0040] 3. Lock rod assembly; 31. Rotating slider; 32. Lock shaft; 33. Ratchet; 34. Limit impeller; 35. Cage; 36. Ratchet; 37. Spring; 38. Positioning arm; 39. Positioning shaft;

[0041] 4. Self-locking guide rail; 41. Guide rod; 42. Clamp rod; 43. Return spring; 44. Anti-rotation protrusion; 45. Anti-detachment protrusion; 46. Groove;

[0042] 5. driving arm; 51. connecting rod; 52. short arm; 53. sliding rod; 54. fixed point axis; 55. long arm;

[0043] 6. Environmental protection gas supply assembly; 61. Gas storage box; 62. Piston tube; 63. Piston rod; 64. Hose; 65. Diverter tube; 66. Injection tube; 67. Support spring;

[0044] 7. Trigger mechanism; 71. Electric push rod; 72. Grab hook. DETAILED DESCRIPTION

[0045] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0046] See also Figures 1 to 9 The present invention provides a technical solution: an environmentally friendly gas ring network cabinet with a chain function, comprising:

[0047] The ring main unit 1 has a card rack inside, on which a switch 11 is installed. Specifically, there are multiple switches, all of which are connected to the card rack. The card rack is horizontally arranged in the ring main unit 1.

[0048] The rotating guide rail 2 is fixedly mounted on the inner wall of the ring main unit 1 and is in the shape of a quarter circle as a whole;

[0049] The lock rod assembly 3 is slidably mounted on the inner wall of the rotating guide rail 2 and can slide upward along the direction of the rotating guide rail 2 to the upper middle position of the switch 11;

[0050] A self-locking guide rail 4 is fixedly mounted on a side of the ring main unit 1 close to the cabinet door;

[0051] The driving arm 5 is slidably mounted on the inner wall of the self-locking guide rail 4, and its front end is linked with the locking rod assembly 3 through a connecting rod 51 connected by a pin shaft;

[0052] The environmental protection gas supply component 6 is arranged at the bottom of the ring main unit 1 and is used to fill the ring main unit 1 with environmental protection gas;

[0053] The trigger mechanism 7 is installed on the cabinet door of the ring main cabinet 1 and is used to start the environmental protection gas supply component 6.

[0054] As a preferred embodiment, on the basis of the above-mentioned manner, further, the lock rod assembly 3 includes a rotating slider 31 slidably mounted on the inner wall of the rotating guide rail 2, a locking shaft 32 is fixedly connected to one side of the rotating slider 31, a ratchet 33 is sleeved on the outer wall of the locking shaft 32, and a limited impeller 34 is fixedly connected to the outer wall of the ratchet 33;

[0055] Among them, the outer wall of the lock shaft 32 is also fixedly connected to a retaining frame 35, and the outer wall of the retaining frame 35 is rotatably connected to a pawl 36. The pawl 36 elastically cooperates with the retaining frame 35 through a spring 37. The limiting impeller 34 can rotate counterclockwise on the outer wall of the lock shaft 32 through the ratchet 33, and the rotating slider 31 can slide in the rotating guide rail 2, thereby driving the lock shaft 32 and the components of its outer wall to slide synchronously. The ratchet 33 is mounted on the lock shaft 32 and can rotate relative to the lock shaft 32. The limiting impeller 34 can also rotate counterclockwise on the lock shaft 32, but due to the presence of the pawl 36, the ratchet 33 cannot rotate clockwise but can only rotate counterclockwise. A plurality of blades are arranged on the limiting impeller 34. When the switch is closed, it can be carried on the blades to rotate, and when the switch is opened, it will be restricted by the blades and cannot be opened.

[0056] As a preferred embodiment, on the basis of the above method, further, the retaining frame 35 includes a positioning arm 38, which is rotatably connected to the inner wall of the ring network cabinet 1 through a positioning shaft 39, and the locking shaft 32 slides on the inner wall of the rotating guide rail 2 with the positioning shaft 39 as the axis through the rotating slider 31. Due to the existence of the positioning shaft 39, the locking shaft 32 can only move along the direction of the rotating guide rail 2, and the positioning shaft 39 is located at the axis core position of the rotating guide rail 2.

[0057] The driving arm 5 is L-shaped as a whole. A sliding rod 53 is rotatably connected at the end point of the short arm 52 of the driving arm 5. The sliding rod 53 is slidably connected to the self-locking guide rail 4. The long arm 55 of the driving arm 5 is rotatably connected to the connecting rod 51. One end of the connecting rod 51 is rotatably connected to the retaining frame 35. The self-locking guide rail 4 is also provided with a self-locking component for fixing the sliding rod 53. A fixed shaft 54 ​​is provided at the position where the long arm 55 and the short arm 52 are connected. The fixed shaft 54 ​​is rotatably matched with the ring network cabinet 1. Specifically, the fixed shaft 54 ​​is rotatably connected to the ring network cabinet 1 through a bearing. The long arm 55 and the short arm 52 can rotate with the fixed shaft 54 ​​as the axis. The short arm 52 moves a short distance, while the long arm 55 moves a long distance. When moving, the long arm 55 can drive the connecting rod 51 to move synchronously, so that the connecting rod 51 lifts the retaining frame 35.

[0058] As a preferred embodiment, on the basis of the above-mentioned manner, further, the self-locking assembly includes a guide rod 41 fixedly connected to the self-locking guide rail 4 and a clamping rod 42 rotatably connected to the self-locking guide rail 4 through a pin shaft, and the inner wall of the clamping rod 42 and the guide rod 41 forms a clamping groove adapted to the slide bar 53;

[0059] The clamping rod 42 and the guide rod 41 are elastically matched via a return spring 43;

[0060] The top of the guide rod 41 has an anti-rotation protrusion 44, the bottom end of the clamping rod 42 has an anti-detachment protrusion 45, and the outer wall of the slide rod 53 is respectively provided with grooves 46 that are compatible with the anti-rotation protrusion 44 and the anti-detachment protrusion 45. The guide rod 41 is fixed on the self-locking guide rail 4, and the clamping rod 42 can rotate relative to the self-locking guide rail 4 to open or close the clamping slot. A reset spring 43 is further used to support the clamping rod 42, so that the clamping rod 42 can rotate and contract relative to the self-locking guide rail 4 to complete the clamping fixation. When the anti-rotation protrusion 44 and the anti-detachment protrusion 45 are inserted into the groove 46, the slide rod 53 can be fixed.

[0061] As a preferred embodiment, on the basis of the above-mentioned manner, further, the environmental gas supply assembly 6 includes a gas storage box 61 fixedly connected to the inner bottom wall of the ring main unit 1, and the gas storage box 61 is used to store the environmental gas;

[0062] The environmental protection gas supply assembly 6 also includes a piston tube 62 arranged on the inner bottom wall of the ring network cabinet 1, and the inner wall of the piston tube 62 is slidably connected to a piston rod 63. Two hoses 64 with one-way valves are respectively connected to the piston tube 62, one of the hoses 64 is used to extract gas, and the other hose 64 is used to exhaust gas. The hose 64 for exhausting gas is connected to a shunt pipe 65, and the hose 64 for extracting gas is connected to the gas storage box 61.

[0063] An injection pipe 66 is also provided on one side of the air storage box 61. The injection pipe 66 passes through the ring network cabinet 1 and is threadedly connected to one end with a threaded cap. A support spring 67 is also fixedly connected between the piston tube 62 and the piston rod 63. The support spring 67 is used to support the piston rod 63 to move in a direction away from the piston tube 62. The support spring 67 is used to support the piston rod 63 and the piston tube 62. After the extrusion force is lost, the support spring 67 can push the piston rod 63 to automatically reset. The injection pipe can be opened by opening the threaded cap, and environmentally friendly gas can be injected into the air storage box 61.

[0064] The gas outlet end of the shunt pipe 65 is arranged toward the bottom wall of the ring main unit 1. The advantage of such an arrangement is that dust can be prevented from falling directly into the shunt pipe, and the environmentally friendly gas blown out can be enriched from the bottom to the top.

[0065] The trigger mechanism 7 includes an electric push rod 71 fixedly connected to the door of the ring network cabinet 1. The output end of the electric push rod 71 is fixedly connected to a grab hook 72. The grab hook 72 is made of an elastic soft steel bracket. The grab hook 72 made of the elastic soft steel bracket can be deformed in a small range, thereby facilitating the engagement with the piston rod 63.

[0066] Specifically, when the environmentally friendly gas ring network cabinet with interlocking function is working / in use: the self-locking guide rail 4 is semi-arc-shaped, and the driving arm 5 can slide in the self-locking guide rail 4 through the slide bar 53. When the self-locking guide rail 4 slides upward from the bottom, it can drive the driving arm 5 to rotate with the fixed point axis 54 as the axis core. During the rotation process, the connecting rod 51 pushes the retaining frame 35 to move. The retaining frame 35 slides in the rotating guide rail 2 with the positioning axis 39 as the axis core, so that the locking rod assembly 3 slides to the middle and upper position of the switch. When it is close to the end position, the slide bar 53 contacts the card rod 42 and opens outward. When the slide bar 5 When the lock rod 3 slides to the inner wall of the locking rod 42 and the guide rod 41, the anti-rotation protrusion 44 and the anti-detachment protrusion 45 are respectively engaged in the groove 46 to restrict the slide bar 53 to prevent the slide bar 53 from rotating and sliding. At this time, the lock rod assembly 3 is in the restricted position of the switch 11, and the switch 11 cannot move upward to open, but the switch 11 that is powered can be closed. That is to say, when the switch 11 is automatically closed, it can drive the limiting impeller 34 to rotate counterclockwise. When rotating, the ratchet 33 rotates synchronously on the lock shaft 32. After the rotation, the ratchet pawl 36 restricts the ratchet 33 from rotating clockwise, thereby limiting the switch 11. 1 is opened, so that the safety of construction can be ensured during construction. Each lock rod assembly 3 can limit a row of switches 11. When unlocking is required, the card rod 42 is pressed, and the card rod 42 opens outward relative to the guide rod 41, compressing the reset spring 43. After the extrusion force is lost, the reset spring 43 pushes the card rod 42 to return to the waiting state, and each component is reset to the original state, thereby achieving the purpose of one-key unlocking. The entire locking and unlocking operation steps are relatively simple and convenient. When the cabinet door is closed and environmentally friendly gas needs to be injected, the electric push rod 71 extends, and the grab hook 72 is squeezed to the piston rod 63 at the end point. When the piston rod 63 is exceeded, the hook 72 unfolds and grabs the piston rod 63, driving the piston rod 63 to contract, and the environmentally friendly gas in the piston tube 62 is transported to the ring network cabinet 1 through the shunt pipe 65. When the electric push rod 71 is extended, the piston rod 63 extends under the action of the supporting spring 67, thereby extracting the environmentally friendly gas in the gas storage box 61. Since two one-way valves are arranged in the hose 64, the gas in the gas storage box 61 can only be transported to the piston tube 62, and the gas in the piston tube 62 can only be transported to the shunt pipe 65, thereby achieving the purpose of automatically injecting environmentally friendly gas.

[0067] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An environmentally friendly gas ring main unit with interlocking function, characterized in that: include: A ring main unit (1) having a card rack disposed therein and a switch (11) mounted on the card rack; The rotating guide rail (2) is fixedly mounted on the inner wall of the ring main unit (1) and is in the shape of a quarter circle as a whole; A lock rod assembly (3) is slidably mounted on the inner wall of the rotating guide rail (2) and can slide upward along the direction of the rotating guide rail (2) to an upper middle position of the switch (11); A self-locking guide rail (4) fixedly mounted on a side of the ring main unit (1) close to the cabinet door; A driving arm (5) is slidably mounted on the inner wall of the self-locking guide rail (4), and its front end is linked with the locking rod assembly (3) via a connecting rod (51) connected by a pin shaft; An environmentally friendly gas supply component (6) is arranged at the bottom of the ring main unit (1) and is used to fill the ring main unit (1) with environmentally friendly gas; A trigger mechanism (7) mounted on a cabinet door of the ring main cabinet (1) for starting the environmental protection gas supply assembly (6); The locking rod assembly (3) comprises a rotating slider (31) slidably mounted on the inner wall of the rotating guide rail (2); a locking shaft (32) is fixedly connected to one side of the rotating slider (31); a ratchet (33) is sleeved on the outer wall of the locking shaft (32); and a limiting impeller (34) is fixedly connected to the outer wall of the ratchet (33); The outer wall of the lock shaft (32) is also fixedly connected to a retaining frame (35), the outer wall of the retaining frame (35) is rotatably connected to a pawl (36), the pawl (36) is elastically matched with the retaining frame (35) via a spring (37), and the limiting impeller (34) can rotate counterclockwise on the outer wall of the lock shaft (32) via the ratchet (33); The retaining frame (35) includes a positioning arm (38), the positioning arm (38) is rotatably connected to the inner wall of the ring main unit (1) via a positioning shaft (39), and the locking shaft (32) slides on the inner wall of the rotating guide rail (2) with the positioning shaft (39) as the axis through the rotating slider (31); The driving arm (5) is L-shaped as a whole, and a sliding rod (53) is rotatably connected at the end point of the short arm (52) of the driving arm (5), and the sliding rod (53) is slidably connected to the self-locking guide rail (4). The long arm (55) of the driving arm (5) is rotatably connected to the connecting rod (51), and one end of the connecting rod (51) is rotatably connected to the retaining frame (35). A self-locking component for fixing the sliding rod (53) is also provided on the self-locking guide rail (4). A fixed-point shaft (54) is provided at the position where the long arm (55) and the short arm (52) are connected, and the fixed-point shaft (54) is rotatably matched with the ring network cabinet (1); The self-locking assembly comprises a guide rod (41) fixedly connected to the self-locking guide rail (4) and a clamping rod (42) rotatably connected to the self-locking guide rail (4) via a pin shaft, wherein the inner walls of the clamping rod (42) and the guide rod (41) form a clamping groove adapted to the slide rod (53); The clamping rod (42) and the guide rod (41) are elastically matched via a return spring (43); The top of the guide rod (41) has an anti-rotation protrusion (44), the bottom of the clamping rod (42) has an anti-detachment protrusion (45), and the outer wall of the slide rod (53) is respectively provided with grooves (46) matching the anti-rotation protrusion (44) and the anti-detachment protrusion (45).

2. The environmentally friendly gas ring main unit with interlocking function according to claim 1, characterized in that: The environmentally friendly gas supply assembly (6) comprises a gas storage box (61) fixedly connected to the inner bottom wall of the ring main unit (1), wherein the gas storage box (61) is used to store the environmentally friendly gas; The environmental protection gas supply assembly (6) further comprises a piston tube (62) arranged on the inner bottom wall of the ring main unit (1), the inner side wall of the piston tube (62) being slidably connected to a piston rod (63), and the piston tube (62) being respectively connected to two hoses (64) with one-way valves, wherein one hose (64) is used for extracting gas and the other hose (64) is used for exhausting gas, the hose (64) for exhausting gas is connected to a shunt pipe (65), and the hose (64) for extracting gas is connected to the gas storage box (61).

3. The environmentally friendly gas ring main unit with interlocking function according to claim 2 is characterized in that: An injection pipe (66) is also provided on one side of the air storage box (61); one end of the injection pipe (66) passes through the ring main cabinet (1) and is threadedly connected to a threaded cap; a support spring (67) is also fixedly connected between the piston tube (62) and the piston rod (63); the support spring (67) is used to support the piston rod (63) to move in a direction away from the piston tube (62).

4. The environmentally friendly gas ring main unit with interlocking function according to claim 3 is characterized in that: The gas outlet end of the diverter pipe (65) is arranged toward the bottom wall of the ring main unit (1).

5. The environmentally friendly gas ring main unit with interlocking function according to claim 4, characterized in that: The trigger mechanism (7) comprises an electric push rod (71) fixedly connected to a door of the ring main unit (1), the output end of the electric push rod (71) being fixedly connected to a grab hook (72), the grab hook (72) being made of an elastic soft steel bracket.

Images