All-insulation type metal closed looped network switchgear

Abstract

The invention provides an all-insulation type metal closed looped network switch device, relates to the field of looped network switch devices, and solves the problems that two groups of clamping push rods are oppositely and fixedly connected to the left side and the right side of the interior of a detection frame in the prior art; the problems that when nitrogen filling operation is carried out, an effective pressure relief protection structure is lacked, so that when the device is used, the efficiency is low when air pressure is monitored by purely depending on an air pressure detector, and effective sealing protection operation cannot be carried out on a switch device body are solved. When the air pressure sensor arranged on the outer side of the detection frame detects that air pressure leakage occurs in the cabinet body, the detection frame and the air bag part are matched to actively search for a leaked part in the cabinet body and perform corresponding detection and then self-sealing operation. Therefore, leakage of nitrogen in the cabinet body can be temporarily avoided.

Description

Technical Field

[0001] The invention belongs to the field of ring network switch equipment, and in particular relates to a fully insulated metal-enclosed ring network switch equipment. Background Art

[0002] Ring network refers to a ring distribution network, that is, the power supply trunk forms a closed ring, and the power supply supplies power to this ring trunk. The advantage of this is that each distribution branch can get power from both its left trunk and its right trunk. When the left trunk fails, it continues to get power from the right trunk, and when the right trunk fails, it continues to get power from the left trunk. In this way, although the total power supply is single-circuit power supply, each distribution branch gets the benefits similar to dual-circuit power supply, thereby improving the reliability of power supply. Ring network cabinet is a group of electrical equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring network power supply unit. Its core part uses load switches and fuses. It has the advantages of simple structure, small size, low price, and can improve power supply parameters and performance as well as power supply safety. It is widely used in distribution stations and box-type substations in urban residential areas, high-rise buildings, large public buildings, factories and enterprises and other load centers; For example, the application number is: "CN202210030223.7", a box-type AC metal-enclosed ring network switch device. The present invention provides a box-type AC metal-enclosed ring network switch device, including a control box, a protection box, and a moving box. The control box and the protection box are respectively fixed on the left and right parts of the upper side of the moving box. The control box is provided with a first input pole piece and a second input pole piece. The right side of the first input pole piece is electrically connected to the left side of the first guide piece through a wire, and the right side of the second input pole piece is electrically connected to the left sides of the second guide piece, the third guide piece, and the fourth guide piece through a wire. The right side of the first guide piece contacts the left side of the upper conductive rod, and the right side of the upper conductive rod is electrically connected to the left side of the fifth guide piece. The right side of the fifth guide piece is electrically connected to the left side of the ninth guide piece through a wire. The technical solution disclosed in the present invention effectively solves the technical problems in the prior art such as lack of flow capacity and inability to achieve automatic circuit breaking and flexible movement and transportation, which is conducive to promotion and application.

[0003] With reference to the above patents and prior art, it is known that when the existing switchgear is in use, it is necessary to fill the inside of the switch cabinet with nitrogen to achieve insulation protection for the internal components. However, when performing the nitrogen filling operation, it lacks an effective pressure relief protection structure, so when it is in use, it is inefficient to simply rely on the air pressure detector to monitor the air pressure, and it is impossible to perform effective sealing and protection operations on the switchgear body, which has limitations.

[0004] Therefore, in view of the shortcomings of the above-mentioned scheme in actual production and implementation, it is revised and improved. At the same time, in the spirit and concept of seeking for excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the present invention is created. In particular, a fully insulated metal enclosed ring network switch device is provided to solve the existing problem that it is necessary to fill the inside of the switch cabinet with nitrogen to achieve insulation protection for the internal components. When the nitrogen filling operation is performed, it lacks an effective pressure relief protection structure, so that when it is used, it is inefficient to simply rely on the air pressure detector to monitor the air pressure, and it is impossible to perform effective sealing protection operations on the switch device body, which has limitations. Summary of the invention

[0005] The present invention proposes a fully insulated metal enclosed ring network switchgear, which solves the problem in the prior art that the switch cabinet needs to be filled with nitrogen to achieve insulation protection for its internal components, and when the nitrogen filling operation is performed, it lacks an effective pressure relief protection structure, so when it is used, it is inefficient when simply relying on a pressure detector to monitor the air pressure, and it is unable to perform effective sealing and protection operations on the switchgear body, which has limitations.

[0006] The technical solution of the present invention is implemented as follows: a fully insulated metal-enclosed ring network switch device includes a moving seat, the main body of the moving seat is a rectangular block structure, and a slider is fixedly connected to the outside of the moving seat, the slider is a structure protruding from the moving seat, and the slider is provided at four places, wherein every two longitudinally adjacent sliders form a group, and the two groups of sliders are respectively fixedly connected to the front and rear side positions of the two moving seats, and the inner sides of the two moving seats are also fixedly connected to the detection frame, and the main body of the detection frame is a rectangular frame structure, and a groove is provided on the outside of the detection frame, and the groove is a detection groove, and The detection tank is used to detect gas leakage. The detection frame and the detection tank together constitute a detection structure, and the inner side of the detection frame is fixedly connected with an air pressure sensor, and the air pressure sensor is used to detect the nitrogen pressure inside the cabinet, and the inner side of the detection frame is fixedly connected with a clamping push rod, and there are four clamping push rods in total, where every two longitudinally adjacent clamping push rods form a group, and the two groups of clamping push rods are fixedly connected to the left and right sides of the inside of the detection frame in opposite directions, and the inner side of the two groups of clamping push rods is the output end, and a clamping plate is installed on the output end, and the clamping push rod and the clamping plate together constitute a clamping limit structure: As a preferred embodiment, a longitudinal groove is opened inside the cabinet, and the movable seat is slidably connected to the longitudinal groove opened in the cabinet through a slider fixedly connected on its outer surface, and a cover is fixedly connected to the outer side of the movable seat, and the cover is a folding structure, and there are four covers in total, wherein every two longitudinally adjacent covers form a group, and the two groups of covers are fixedly connected to the inner sides of the two movable seats in opposite directions, and the covers are located in the longitudinal groove opened in the cabinet, and an electric push rod is installed inside the longitudinal groove opened in the cabinet.

[0007] As a preferred embodiment, the electric push rods are provided with two locations, and the two electric push rods are installed opposite to each other on the left and right sides of the cabinet. A relay box is fixedly connected to the top surface of the cabinet, and the relay box is used to connect to an external power supply. The main body of the relay box is a box structure with a one-way opening at the front end. A relay is fixedly connected to the inside of the relay box, and the relay and the relay box together constitute a relay structure, and a box door is installed at the front end of the relay box.

[0008] As a preferred embodiment, the box door is used to close the front end opening of the relay box, and a through groove is opened inside the box door, a closed window is fixedly connected inside the through groove, and the closed window and the box door together constitute a closed structure for the front end opening of the relay box, and a cabinet door is installed on the front end opening of the cabinet, and the cabinet door and the front end of the box door are both provided with grooves, which are holding structures, and a through groove is opened inside the cabinet door, an explosion-proof window is fixedly connected inside the through groove, and the explosion-proof window and the cabinet door together constitute a closed structure for the front end opening of the cabinet.

[0009] As a preferred embodiment, a nitrogen box is fixedly connected to the left end surface of the cabinet, and the nitrogen box is an internal hollow structure. An opening is provided on the left side of the nitrogen box, and a connecting pipe is fixedly connected to the opening. The main body of the connecting pipe is a two-way through structure on the left and right sides, and the connecting pipe is connected to the nitrogen box. A flange is fixedly connected to the left end surface of the connecting pipe, and the main body of the flange is an annular structure. Through holes are provided in an annular array inside the flange, and the flange and the connecting pipe together constitute an air intake structure toward the inside of the nitrogen box, and a pump is fixedly connected to the top surface of the nitrogen box.

[0010] As a preferred embodiment, the pump is an air extraction structure, and a conduit is fixedly connected to the rear side of the pump, the conduit is connected to the nitrogen box fixedly connected to the left end face of the cabinet, and the conduit and the pump together constitute an air extraction structure from the inside of the nitrogen box, and a guide pipe is fixedly connected to the front end face of the pump, and the main body of the guide pipe is a flexible structure, the guide pipe is connected to a movable seat fixedly connected to the bottom end face of the electric push rod, and the pump and the guide pipe together constitute an air supply structure, and a shunt pipe is also fixedly connected to the inner side of the detection frame, and the shunt pipe is connected to the guide pipe fixedly connected in the detection frame.

[0011] As a preferred embodiment, an airbag component is fixedly connected to the interior of the detection frame, and a shunt tube fixedly connected in the detection frame is connected to the airbag component fixedly connected in the detection frame, and a shunt valve is fixedly connected to the outside of the shunt tube, and the shunt valve and the shunt tube together constitute an air supply structure, and the shunt tube is connected to the airbag component fixedly connected in the detection frame and is used to inflate the interior of the airbag component.

[0012] As a preferred embodiment, a connector A is fixedly connected to the inner side of the cabinet, and a groove is provided at the front end of the connector A. Terminal posts are fixedly connected to the inside of the groove, and the terminal posts are fixedly connected to the inner side of the connector A in a linear array, and through holes are provided inside the terminal posts.

[0013] As a preferred embodiment, the through hole opened in the terminal post is a wiring hole, and the wiring hole and the terminal post together constitute a connection structure for the external wiring harness, and a guide rod is fixedly connected to the bottom end surface of the connector A, and the main body of the guide rod is a cylindrical structure. There are four guide rods in total, and the four guide rods are fixedly connected to the four corners of the bottom end surface of the connector A respectively.

[0014] As a preferred embodiment, a magnetic plate is fixedly connected to the outer side of the guide rod, the main cross-section of the magnetic plate is a circular structure, and the diameter of the magnetic plate is larger than the diameter of the guide rod, and two magnetic plates are fixedly connected to the outer circumferential surface of each guide rod in a linear array, and a connector is fixedly connected to the bottom end surface of the connector A, and the connector is electrically connected to the terminal post fixedly connected in the connector A, and the outer side of the four guide rods is also sleeved with a connector B, and the structure of the connector B is consistent with the structure of the connector A, and a connecting vessel is fixedly connected to the top surface of the connector B, and the connecting vessel matches the connector fixedly connected to the bottom end surface of the connector A, and an insert is fixedly connected to the outer side of the connecting vessel, and there are two inserts in total, and the two inserts are fixedly connected to the left and right side surfaces of the connecting vessel in opposite directions.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by providing a detection frame fixedly connected to the inner side of the movable seat, when it is used, the airbag component fixedly connected to the detection frame can be linked with the shunt pipe, so that when the air pressure sensor arranged on the outer side of the detection frame detects that there is an air pressure leakage inside the cabinet, the detection frame and the airbag component can be used to cooperate to realize active search for the leakage position in the cabinet and perform corresponding self-sealing operation after detection, so that it can temporarily avoid the leakage of nitrogen inside the cabinet, thereby achieving a more practical purpose.

[0016] 2. In the present invention, by providing a split-structured connector A and connector B, when connecting the wiring harness, the wiring harness can be connected to the wiring posts fixedly connected in the connector A and the connector B, and after the connection is completed, the clamping push rod installed in the detection frame can be started to push the clamping plate inward and clamp the connector B to position it. When an abnormality occurs, the clamping plate can be used to clamp the connector B to a limited position by pushing the moving seat with the electric push rod, and then the connector B can be automatically separated from the connector A, thereby achieving automatic linkage protection to achieve a more practical purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the front and side views of the ring network switch device of the present invention after partial structure cut-away; Figure 2 It is a schematic diagram of the combined structure of the ring network switch device of the present invention; Figure 3 It is a schematic diagram of the combined structure of the relay box and relay of the ring network switch device of the present invention; Figure 4 It is a schematic diagram of the combined structure of the nitrogen box and the connecting pipe of the ring network switch device of the present invention; Figure 5 It is a schematic diagram of the combined structure of the detection frame and the detection slot of the ring network switch device of the present invention; Figure 6 It is a schematic diagram of the combined structure of the connector B and the connecting tube of the ring network switch device of the present invention; Figure 7 It is a schematic diagram of the combined structure of the guide rod and the magnetic plate of the ring network switch device of the present invention; Figure 8 It is a right side structural schematic diagram of the ring network switch device of the present invention; In the figure, 1, cabinet; 2, relay box; 3, relay; 4, box door; 5, closed window; 6, cabinet door; 7, explosion-proof window; 8, electric push rod; 9, moving seat; 10, slider; 11, cover; 12, detection frame; 13, detection slot; 14, air pressure sensor; 15, clamping push rod; 16, splint; 17, nitrogen box; 18, connecting pipe; 19, flange; 20, pump; 21, conduit; 22, guide pipe; 23, shunt pipe; 24, shunt valve; 25, connector A; 26, terminal post; 27, wiring hole; 28, guide rod; 29, magnetic plate; 30, connector; 31, connector B; 32, connecting vessel; 33, plug block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 8As shown, the fully insulated metal enclosed ring network switchgear includes: a moving seat 9, the main body of the moving seat 9 is a rectangular block structure, and a slider 10 is fixedly connected to the outer side of the moving seat 9, the slider 10 is a structure protruding from the moving seat 9, and the slider 10 is provided at four locations, wherein every two longitudinally adjacent sliders 10 form a group, and the two groups of sliders 10 are respectively fixedly connected to the front and rear side positions of the two moving seats 9, and the inner sides of the two moving seats 9 are also fixedly connected to the detection frame 12, and the main body of the detection frame 12 is a rectangular frame structure, and the detection frame 12 A groove is provided on the outer side of the cabinet 1, which is a detection groove 13, and the detection groove 13 is used to detect gas leakage. The detection frame 12 and the detection groove 13 together constitute a detection structure, and the inner side of the detection frame 12 is fixedly connected to a pressure sensor 14, and the pressure sensor 14 is used to detect the nitrogen pressure inside the cabinet 1, and the inner side of the detection frame 12 is fixedly connected to a clamping push rod 15, and the clamping push rod 15 is provided at four locations, wherein every two longitudinally adjacent clamping push rods 15 form a group, and the two groups of clamping push rods 15 are fixedly connected to the detection frame 12 in opposite directions. The left and right sides of the interior, and the inner sides of the two groups of clamping push rods 15 are output ends, and the clamping push rods 15 and the clamping push rods 16 together form a clamping limit structure. The outer side of the guide rod 28 is fixedly connected with a magnetic plate 29, and the main cross-section of the magnetic plate 29 is a circular structure, and the diameter of the magnetic plate 29 is larger than the diameter of the guide rod 28. Two magnetic plates 29 are fixedly connected in a linear array on the outer peripheral surface of each guide rod 28, and a connector 30 is fixedly connected to the bottom end surface of the connector A25, and the connector 30 is fixedly connected to the fixed connection The terminal posts 26 in the connector A25 are electrically connected, and the outer sides of the guide rods 28 are also sleeved with connectors B31, and the structure of the connector B31 is consistent with that of the connector A25, and a connecting vessel 32 is fixedly connected to the top surface of the connector B31, and the connecting vessel 32 matches the connector 30 fixedly connected to the bottom surface of the connector A25, and an insert block 33 is fixedly connected to the outer side of the connecting vessel 32, and there are two insert blocks 33, and the two insert blocks 33 are fixedly connected to the left and right side surfaces of the connecting vessel 32 in opposite directions.

[0021] Among them, the cabinet 1 is provided with a longitudinal groove inside, the movable seat 9 is slidably connected in the longitudinal groove opened in the cabinet 1 through the slider 10 fixedly connected on its outer surface, and the outer side of the movable seat 9 is fixedly connected with a mask 11, and the mask 11 is a folding structure, and the mask 11 is provided at four places, wherein every two longitudinally adjacent masks 11 form a group, and the two groups of masks 11 are fixedly connected to the inner side positions of the two movable seats 9 in opposite directions, and the mask 11 is located in the longitudinal groove opened in the cabinet 1, and the cabinet 1 An electric push rod 8 is installed inside the longitudinal groove opened therein, and there are two electric push rods 8 in total, and the two electric push rods 8 are installed oppositely on the left and right sides of the cabinet 1. A relay box 2 is fixedly connected to the top surface of the cabinet 1, and the relay box 2 is used to connect an external power supply. The main body of the relay box 2 is a box structure with a one-way opening at the front end. A relay 3 is fixedly connected inside the relay box 2, and the relay 3 and the relay box 2 together constitute a relay structure, and a box door 4 is installed at the front end of the relay box 2.

[0022] Among them, the box door 4 is used to close the front end opening of the relay box 2, and the box door 4 has a through groove inside, and the through groove is fixedly connected to the inside of the closed window 5, and the closed window 5 and the box door 4 together form a closed structure for the front end opening of the relay box 2, and a cabinet door 6 is installed on the front end opening of the cabinet 1, and the cabinet door 6 and the front end of the box door 4 are both provided with a groove, and the groove is a gripping structure, and the cabinet door 6 has a through groove inside, and the through groove is fixedly connected to the inside of the explosion-proof window 7, and the explosion-proof window 7 and the cabinet door 6 together form a closed structure for the front end opening of the cabinet 1, and the left end surface of the cabinet 1 is fixedly connected to the cabinet door 6. A nitrogen box 17 is connected, and the nitrogen box 17 is an internal hollow structure. An opening is provided on the left side of the nitrogen box 17, and a connecting pipe 18 is fixedly connected to the opening. The main body of the connecting pipe 18 is a two-way through structure on the left and right sides, and the connecting pipe 18 is connected with the nitrogen box 17, and a flange 19 is fixedly connected to the left end face of the connecting pipe 18, and the main body of the flange 19 is an annular structure, and the interior of the flange 19 is provided with through holes in an annular array, and the flange 19 and the connecting pipe 18 together constitute an air intake structure toward the inside of the nitrogen box 17, and a pump 20 is fixedly connected to the top end face of the nitrogen box 17.

[0023] Among them, the pump 20 is an air extraction structure, and a conduit 21 is fixedly connected to the rear side of the pump 20, the conduit 21 is connected to the nitrogen box 17 fixedly connected to the left end face of the cabinet 1, and the conduit 21 and the pump 20 together constitute an air extraction structure from the inside of the nitrogen box 17, and a guide pipe 22 is fixedly connected to the front end face of the pump 20, and the main body of the guide pipe 22 is a flexible structure, the guide pipe 22 is connected to the moving seat 9 fixedly connected to the bottom end face of the electric push rod 8, and the pump 20 and the guide pipe 22 together constitute an air supply structure, and the detection frame 1 2 is also fixedly connected to the inner side of the shunt pipe 23, the shunt pipe 23 is connected to the guide pipe 22 fixedly connected to the detection frame 12, the inside of the detection frame 12 is fixedly connected to the airbag component, and the shunt pipe 23 fixedly connected to the detection frame 12 is connected to the airbag component fixedly connected to the detection frame 12, and the outer side of the shunt pipe 23 is fixedly connected to the shunt valve 24, and the shunt valve 24 and the shunt pipe 23 together constitute an air supply structure, and the shunt pipe 23 is connected to the airbag component fixedly connected to the detection frame 12, and is used to inflate the inside of the airbag component.

[0024] Among them, a connector A25 is fixedly connected to the inner side of the cabinet 1, and a groove is provided at the front end of the connector A25, and a wiring post 26 is fixedly connected inside the groove, and the wiring post 26 is fixedly connected to the inner side of the connector A25 in a linear array, and a through hole is provided inside the wiring post 26, and the through hole provided in the wiring post 26 is a wiring hole 27, and the wiring hole 27 and the wiring post 26 together constitute a connection structure for the external wiring harness, and a guide rod 28 is fixedly connected to the bottom end surface of the connector A25, and the main body of the guide rod 28 is a cylindrical structure, and the guide rod 28 is provided at four locations, and the four guide rods 28 are respectively fixedly connected to the four corners of the bottom end surface of the connector A25.

[0025] When the ring network switch device is in use, the cabinet 1 can be placed on the ground, and the box door 4 arranged on the front face of the relay box 2 can be folded forward to open, and the relay 3 fixedly connected to the relay box 2 can be connected to the external line to power the entire device; When the connector B31 is used for connection, it can be pushed upward, and when the connector B31 moves upward, it can move along the guide rod 28 fixedly connected to the bottom end surface of the connector A25, and synchronously use the magnetic plate 29 fixedly connected to the upper side of the outer peripheral surface of the guide rod 28 to perform an adsorption positioning connection operation on the connector B31, and when the connector B31 moves upward, the connecting vessel 32 fixedly connected to its top end surface can be inserted into the internal position of the connector 30 fixedly connected to the bottom end surface of the connector A25 to perform an automated circuit connection operation; When the circuit is connected, the external wiring harness needs to be pre-connected with the wiring hole 27 opened in the wiring post 26 fixedly connected to the connector A25 and the connector B31 for quick connection and limiting. After the connection is completed, the cabinet door 6 installed on the front end surface of the cabinet 1 is folded back to achieve the sealing operation of the cabinet 1. At this time, the pump 20 installed on the top end surface of the nitrogen box 17 is started to use the conduit 21 to extract gas from the inside of the nitrogen box 17, and the gas is supplied to the inside of the cabinet 1 through the guide pipe 22 to achieve the nitrogen sealing and insulation operation. And during the sealing process, the air pressure inside the current cabinet 1 can be continuously detected by using the air pressure sensor 14 fixedly connected to the detection frame 12. If pressure relief is detected, the movable seat 9 can be pushed by starting the electric push rod 8 installed in the cabinet 1, and the movable seat 9 drives the detection frame 12 fixedly connected inside it to move up and down to continuously detect and seal the inside of the cabinet 1. Synchronously, when the sealing is completed, the air pressure sensor 14 can be used to detect whether the change in air pressure is slowed down. At this time, the diverter valve 24 arranged on the outside of the diverter pipe 23 can be opened, and part of the nitrogen can be allowed to pass through the diverter pipe 23 into the internal position of the airbag component fixedly connected to the detection frame 12 to achieve a temporary tight connection operation, thereby achieving the purpose of preventing nitrogen leakage.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Fully insulated metal enclosed ring network switchgear, characterized in that: The invention comprises a moving seat (9), wherein the main body of the moving seat (9) is a rectangular block structure, and a slider (10) is fixedly connected to the outer side of the moving seat (9), and the slider (10) is a structure protruding from the moving seat (9), and the slider (10) is provided at four locations, wherein two sliders (10) adjacent to each other in the longitudinal direction form a group, and the two groups of sliders (10) are respectively fixedly connected to the front and rear side positions of the two moving seats (9), and the inner sides of the two moving seats (9) are also fixedly connected to a detection frame (12), and the main body of the detection frame (12) is a rectangular frame structure, and a groove is provided on the outer side of the detection frame (12), and the groove is a detection groove (13), and the detection groove (13) is used to detect gas leakage, and the detection frame (12) ) and the detection groove (13) together form a detection structure, and the inner side of the detection frame (12) is fixedly connected to a pressure sensor (14), and the pressure sensor (14) is used to detect the nitrogen pressure inside the cabinet (1), and the inner side of the detection frame (12) is fixedly connected to a clamping push rod (15), and the clamping push rod (15) is provided at four locations, wherein every two longitudinally adjacent clamping push rods (15) form a group, and the two groups of clamping push rods (15) are fixedly connected to the left and right sides of the detection frame (12) in opposite directions, and the inner sides of the two groups of clamping push rods (15) are output ends, and a clamping plate (16) is installed on the output end, and the clamping push rod (15) and the clamping plate (16) together form a clamping limit structure.

2. The fully insulated metal enclosed ring network switchgear according to claim 1, characterized in that: The cabinet (1) has a longitudinal groove formed inside, and the movable seat (9) is slidably connected to the longitudinal groove formed in the cabinet (1) via a slider (10) fixedly connected on its outer surface, and a shield (11) is fixedly connected to the outer side of the movable seat (9), and the shield (11) is a folding structure, and the shield (11) is provided at four locations, wherein two longitudinally adjacent shields (11) form a group, and the two groups of shields (11) are fixedly connected to the inner sides of the two movable seats (9) in opposite directions, and the shields (11) are located in the longitudinal groove formed in the cabinet (1), and an electric push rod (8) is installed inside the longitudinal groove formed in the cabinet (1).

3. The fully insulated metal enclosed ring network switchgear according to claim 2, characterized in that: The electric push rods (8) are provided at two locations, and the two electric push rods (8) are installed opposite to each other at left and right sides of the cabinet (1). A relay box (2) is fixedly connected to the top surface of the cabinet (1), and the relay box (2) is used to connect to an external power supply. The main body of the relay box (2) is a box structure with a one-way opening at the front end. A relay (3) is fixedly connected to the inside of the relay box (2), and the relay (3) and the relay box (2) together form a relay structure. A box door (4) is installed at the front end of the relay box (2).

4. The fully insulated metal enclosed ring network switchgear according to claim 3, characterized in that: The box door (4) is used to close the front opening of the relay box (2), and a through groove is provided inside the box door (4), a closed window (5) is fixedly connected inside the through groove, and the closed window (5) and the box door (4) together form a closed structure for the front opening of the relay box (2), and a cabinet door (6) is installed on the front opening of the cabinet body (1), and the cabinet door (6) and the front end of the box door (4) are both provided with a groove, and the groove is a gripping structure, and a through groove is provided inside the cabinet door (6), and an explosion-proof window (7) is fixedly connected inside the through groove, and the explosion-proof window (7) and the cabinet door (6) together form a closed structure for the front opening of the cabinet body (1).

5. The fully insulated metal enclosed ring network switchgear according to claim 4, characterized in that: A nitrogen box (17) is fixedly connected to the left end surface of the cabinet (1), and the nitrogen box (17) is an internal hollow structure. An opening is provided on the left side of the nitrogen box (17), and a connecting pipe (18) is fixedly connected to the opening. The main body of the connecting pipe (18) is a bidirectional through-structure on both sides, and the connecting pipe (18) is connected to the nitrogen box (17). A flange (19) is fixedly connected to the left end surface of the connecting pipe (18), and the main body of the flange (19) is an annular structure. Through holes are provided in an annular array inside the flange (19), and the flange (19) and the connecting pipe (18) together form an air intake structure toward the inside of the nitrogen box (17). A pump (20) is fixedly connected to the top surface of the nitrogen box (17).

6. The fully insulated metal enclosed ring network switchgear according to claim 5, characterized in that: The pump (20) is an air extraction structure, and a conduit (21) is fixedly connected to the rear side of the pump (20), the conduit (21) is connected to a nitrogen box (17) fixedly connected to the left end face of the cabinet (1), and the conduit (21) and the pump (20) together form an air extraction structure from the inside of the nitrogen box (17), and a guide tube (22) is fixedly connected to the front end face of the pump (20), and the main body of the guide tube (22) is a flexible structure, the guide tube (22) is connected to a moving seat (9) fixedly connected to the bottom end face of the electric push rod (8), and the pump (20) and the guide tube (22) together form an air supply structure, and a shunt tube (23) is also fixedly connected to the inner side of the detection frame (12), and the shunt tube (23) is connected to the guide tube (22) fixedly connected in the detection frame (12).

7. The fully insulated metal enclosed ring network switchgear according to claim 6, characterized in that: An airbag component is fixedly connected to the interior of the detection frame (12), and a shunt pipe (23) fixedly connected to the detection frame (12) is connected to the airbag component fixedly connected to the detection frame (12), and a shunt valve (24) is fixedly connected to the outside of the shunt pipe (23), and the shunt valve (24) and the shunt pipe (23) together form an air supply structure, and the shunt pipe (23) is connected to the airbag component fixedly connected to the detection frame (12) and is used to inflate air into the interior of the airbag component.

8. The fully insulated metal enclosed ring network switchgear according to claim 6, characterized in that: A connector A (25) is fixedly connected to the inner side of the cabinet (1), and a groove is provided at the front end of the connector A (25). A wiring post (26) is fixedly connected to the inside of the groove. The wiring post (26) is fixedly connected to the inner side of the connector A (25) in a linear array, and a through hole is provided inside the wiring post (26).

9. The fully insulated metal enclosed ring network switchgear according to claim 8, characterized in that: The through hole formed in the wiring post (26) is a wiring hole (27), and the wiring hole (27) and the wiring post (26) together form a connection structure for an external wiring harness, and a guide rod (28) is fixedly connected to the bottom end surface of the connector A (25), the main body of the guide rod (28) is a cylindrical structure, and the guide rod (28) is provided at four locations, and the four guide rods (28) are respectively fixedly connected to the four corners of the bottom end surface of the connector A (25).

10. The fully insulated metal enclosed ring network switchgear according to claim 9, characterized in that: The outer side of the guide rod (28) is fixedly connected to a magnetic plate (29), the main cross-section of the magnetic plate (29) is a circular structure, and the diameter of the magnetic plate (29) is larger than the diameter of the guide rod (28), and two magnetic plates (29) are fixedly connected in a linear array on the outer peripheral surface of each guide rod (28), and a connector (30) is fixedly connected to the bottom end surface of the connector A (25), and the connector (30) is electrically connected to a wiring post (26) fixedly connected to the connector A (25), and the outer sides of the four guide rods (28) are also A connector B (31) is sleeved, and the structure of the connector B (31) is consistent with that of the connector A (25), and a communicating vessel (32) is fixedly connected to the top surface of the connector B (31), and the communicating vessel (32) matches the connector (30) fixedly connected to the bottom surface of the connector A (25), and an inserting block (33) is fixedly connected to the outer side of the communicating vessel (32), and the inserting blocks (33) are provided at two locations, and the two inserting blocks (33) are fixedly connected to the left and right side surfaces of the communicating vessel (32) in opposite directions.

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