A ring main unit with dual power supply fast switching

Abstract

The present invention discloses a dual-power fast-switching ring network cabinet, which relates to the technical field of dual-power ring network cabinets, and comprises a ring network cabinet body and a dual-power fast-switching switch arranged in the ring network cabinet body; the dual-power fast-switching switch comprises a fixed base and a switch outer shell arranged on the top of the fixed base, the fixed base is located in an installation groove opened in the ring network cabinet body, and an automatic limit assembly for limiting and fixing the position of the fixed base in the installation groove is arranged at the bottom of the installation groove; when the two sliding seats of the present invention move toward each other, the hanging rod and the limit plug column will be driven to move to the side away from the limit slot until the limit plug column is separated from the limit slot, so that the dual-power fast-switching switch can be installed and disassembled more conveniently and quickly, which is convenient for later maintenance operations.

Description

Technical Field

[0001] The present invention relates to the technical field related to dual-power supply ring network cabinets, and in particular to a dual-power supply fast-switching ring network cabinet. Background Art

[0002] Ring main unit is a kind of electrical equipment for transmission and distribution (high voltage switchgear) installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. In order to realize the integration of multiple functions such as power switching, opening and closing, and maintenance, and reduce the number of switches and switch cabinets used to reduce costs, a dual power supply fast switching ring main unit is required.

[0003] In the existing dual-power ring network cabinet, the dual-power fast switching switch is usually directly fixed in the ring network cabinet by multiple screws, which is inconvenient to install and disassemble, and not convenient for subsequent maintenance. When wiring the dual-power fast switching switch, it is necessary to support the connecting wire to fix it, which is troublesome to operate. In addition, the existing connecting wire does not have an anti-drop structure when connected to the dual-power fast switching switch. During the wiring or maintenance process, the connecting wire is easily pulled and falls off. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a ring main unit with dual power supply fast switching.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention discloses a dual-power fast-switching ring network cabinet, comprising a ring network cabinet body and a dual-power fast-switching switch arranged in the ring network cabinet body;

[0007] The dual power fast switching switch comprises a fixed base and a switch outer shell arranged on the top of the fixed base, the fixed base is located in an installation groove provided in the ring network cabinet, and an automatic limit assembly for limiting and fixing the position of the fixed base in the installation groove is arranged at the bottom of the installation groove;

[0008] A plug socket is fixedly arranged on both sides of the back of the switch housing, and at least three frame grooves are equidistantly provided on the front of the plug socket, each of which is provided with a threading hole, and a compression and anti-dropping component is provided in the frame groove for limiting the position of the wire inserted into the threading hole and preventing it from falling off;

[0009] A perfluorohexanone automatic fire extinguishing component is arranged at the top of the inner cavity of the ring network cabinet, and the perfluorohexanone automatic fire extinguishing component is used for extinguishing a fire quickly and without damage after a fire occurs in the ring network cabinet.

[0010] As a preferred technical solution of the present invention, the automatic limit assembly includes two guide rails and two sliding seats respectively slidably arranged on both sides of the guide rails, a swing plate is swingably arranged between the two sliding seats, a swing rod is rotatably arranged at both ends of the swing plate, and the two ends of the two swing rods are respectively rotatably connected to the middle part of the end faces of the two sliding seats.

[0011] As a preferred technical solution of the present invention, a reduction gear is fixedly arranged at the bottom of the swing plate, the reduction gear is rotatably connected to the ring network cabinet and a driving gear is meshed on one side of the reduction gear, and a driving motor for driving the driving gear is fixedly arranged in the ring network cabinet.

[0012] As a preferred technical solution of the present invention, two U-shaped hanging rods are respectively arranged on the two sliding seats, and a limiting plug is fixedly arranged on one end of the hanging rod close to the installation slot, and one end of the limiting plug passes through the installation slot and is plugged into the limiting slot provided on the fixed base.

[0013] As a preferred technical solution of the present invention, the clamping and anti-slipping component includes an anti-slipping seat fixed in the frame groove in an inverted L shape and with an arc groove on the top; a movable block is arranged on the top of the anti-slipping seat; a limited clamping groove is arranged at the bottom end of the movable block corresponding to the arc groove; and an elastic protrusion is arranged on the inner wall of the limited clamping groove.

[0014] As a preferred technical solution of the present invention, an inverted U-shaped limit seat is provided at the bottom of the anti-slip seat, and limit sleeves are slidably provided at both ends of the limit seat, and the limit sleeves are fixedly provided on the side of the anti-slip seat, and a push spring is provided on the part of the limit seat located inside the limit sleeve, and the two ends of the push spring are respectively fixedly connected to the inner wall of the limit sleeve and a stopper fixedly provided at one end of the limit seat;

[0015] The outer side surface of the limiting seat is fixedly provided with a pull ring, and the inner side surface is provided with an arc-shaped limiting groove for limiting the connection line.

[0016] As a preferred technical solution of the present invention, an inverted L-shaped connecting base plate is fixedly provided on one side of the top of the movable block by bolts, and multiple connecting base plates located on the same side are fixedly connected to the same fixed horizontal plate, and a fixing hole communicating with the threading hole is provided on the top of the fixed horizontal plate corresponding to the socket.

[0017] As a preferred technical solution of the present invention, the ends of the two fixed horizontal plates close to each other are fixedly connected with the same U-shaped slide plate, and the U-shaped slide plate is slidably mounted on the back of the dual power supply fast switching switch;

[0018] The middle part of the U-shaped slide plate is threadedly connected with an adjusting screw, both ends of the adjusting screw are rotationally connected with the dual power quick switching switch, and a screw nut is fixedly arranged on the top end of the adjusting screw.

[0019] As a preferred technical solution of the present invention, the perfluorohexanone automatic fire extinguishing assembly includes a perfluorohexanone fire extinguishing device, one side of the perfluorohexanone fire extinguishing device is connected to at least three spray pipes, one end of the spray pipe is connected to a metal hose, and one end of the metal hose is connected to a spray head.

[0020] As a preferred technical solution of the present invention, the outer sleeve of the spray head is provided with a fixed ring, the top ends of multiple fixed rings are fixedly connected to the same translation seat, the middle part of the translation seat is threadedly connected to a screw rod, the internal sliding parts on both sides are inserted with slide rails, and a servo motor for driving the screw rod is arranged on the back side of the ring network cabinet.

[0021] The beneficial effects of the present invention are:

[0022] 1. For this type of dual power quick-switching ring network cabinet, when the two sliding seats move relative to each other, the hanging rod and the limit plug column will be driven to move toward the side close to the limit slot until the limit plug column is limit-inserted into the limit slot, so that the fixed base can be quickly limit-fixed in the installation slot; when the two sliding seats move toward each other, the hanging rod and the limit plug column will be driven to move away from the limit slot until the limit plug column is separated from the limit slot, so that the dual power quick-switching switch can be installed and disassembled more conveniently and quickly, which is convenient for later maintenance operations.

[0023] 2. For this type of dual power quick-switching ring main unit, when it is necessary to connect the connecting wire to the dual power quick-switching switch, you can pull the pull ring to drive the limit seat to move outward, and then pass the wiring end of the connecting wire through the limit seat and place it in the threading hole. At this time, the connecting wire will be limited in the arc groove. When the force on the pull ring is released, the elasticity of the push spring will drive the limit seat to return to its original position. At this time, the limit seat will apply a certain pressure to the connecting wire, which can achieve a preliminary limit on the position of the connecting wire.

[0024] 3. This kind of dual power supply fast switching ring network cabinet can drive the adjusting screw to rotate by turning the screw nut. The rotation of the adjusting screw will drive the U-shaped slide plate threadedly connected to it to move upward or downward along the adjusting screw. When the U-shaped slide plate moves downward, it will drive the fixed cross plate and the connecting base plate to move downward. The movement of the connecting base plate will drive the movable block to move downward until the movable block is moved to contact and tighten the connecting line. At this time, the connecting line will be limited in the limiting and clamping groove, and the friction effect of the elastic protrusion can further realize the clamping and limiting of the position of the connecting line. In this way, there is no need for supporting operation during the wiring process, which is more convenient and quick. In addition, if the wiring is accidentally touched or pulled after the wiring is fixed, the wiring head will not fall off.

[0025] 4. For this type of dual power quick-switching ring network cabinet, when it is necessary to disassemble one of the connecting wires, you can first remove the fixing screws, and then loosen the fixing bolts to separate the corresponding movable block from the connecting base plate. At this time, the movable block will remove the pressure on the connecting wire, and then pull the pull ring to drive the limit seat to move outward to remove the limit on the connecting wire. At this time, the connecting wire can be removed from the threading hole for disassembly.

[0026] 5. For this type of dual power supply fast switching ring network cabinet, when the perfluorohexanone fire extinguishing device is working, perfluorohexanone will be sprayed out along multiple spray heads, and then the servo motor will drive the translation seat to reciprocate along the screw rod, which can realize rapid fire extinguishing in the ring network cabinet. By arranging a metal hose and arranging the servo motor outside the ring network cabinet, it can prevent the fire extinguishing of the perfluorohexanone automatic fire extinguishing component from being affected after the fire occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 is a front perspective view of the present invention;

[0029] Figure 2 The present invention Figure 1 Schematic diagram of the dorsal structure;

[0030] Figure 3 It is a schematic diagram of the fixed base and the installation slot position structure of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the automatic limit assembly of the present invention;

[0032] Figure 5 The present invention Figure 4 A local enlarged view of point A;

[0033] Figure 6 The present invention Figure 4 A partial enlarged view of point B;

[0034] Figure 7 It is a schematic diagram of the back structure of the switch housing of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the pressing and anti-slipping assembly of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the movable block and the anti-slip seat position of the present invention;

[0037] Fig.10 It is a schematic diagram of the structure of the present invention when the movable block presses the connecting wire tightly;

[0038] Fig.11 It is a schematic diagram of the connection structure between the limit seat and the limit sleeve of the present invention;

[0039] Fig.12 It is a schematic diagram of the structure of the perfluorohexanone automatic fire extinguishing assembly of the present invention;

[0040] Fig.13 The present invention Fig.10 A partial enlarged view of point C;

[0041] Fig.14 The present invention Fig.11 A partial enlarged view of point D;

[0042] Fig.15 The present invention Fig.12 A partial enlarged view of point E.

[0043] In the figure: 10, ring network cabinet; 11, installation slot; 20, dual power supply fast switching switch; 21, fixed base; 22, switch shell; 23, socket; 24, threading hole; 30, automatic limit assembly; 31, guide rail; 32, sliding seat; 33, swing plate; 34, swing rod; 35, reduction gear; 36, drive gear; 37, drive motor; 38, hanging rod; 39, limit plug column; 40, pressing anti-drop assembly; 41, anti-drop seat; 42, movable Moving block; 43, limiting clamping groove; 44, limiting seat; 45, limiting sliding sleeve; 46, pushing spring; 47, connecting base plate; 48, fixed horizontal plate; 49, U-shaped slide plate; 410, adjusting screw; 411, screw nut; 50, perfluorohexanone automatic fire extinguishing component; 51, perfluorohexanone fire extinguishing device; 52, spray pipe; 53, metal hose; 54, spray head; 55, fixed collar; 56, translation seat; 57, screw rod; 58, slide rail; 59, servo motor. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Example: Figure 1-Figure 7 As shown, a dual-power fast-switching ring network cabinet of the present invention comprises a ring network cabinet body 10 and a dual-power fast-switching switch 20 arranged in the ring network cabinet body 10; the dual-power fast-switching switch 20 comprises a fixed base 21 and a switch outer shell 22 arranged on the top of the fixed base 21, the fixed base 21 is located in an installation groove 11 provided in the ring network cabinet body 10, and the bottom of the installation groove 11 is provided with an automatic limit assembly 30 for limiting and fixing the position of the fixed base 21 in the installation groove 11; two positioning columns are also fixedly provided in the installation groove 11, and a fixed position matching with the positioning columns is provided on the fixed base 21 The positioning hole is formed by the cooperation between the positioning column and the positioning hole, so that the fixed base 21 can be positioned and placed in the installation groove 11. The two sides of the back of the switch outer shell 22 are fixedly provided with a socket 23, and the front of the socket 23 is provided with at least three frame grooves at equal intervals, each of which is provided with a threading hole 24, and the frame groove is provided with a clamping and anti-falling component 40 for limiting the position of the wire inserted into the threading hole 24 and preventing it from falling off; the top of the inner cavity of the ring network cabinet 10 is provided with a perfluorohexanone automatic fire extinguishing component 50, and the perfluorohexanone automatic fire extinguishing component 50 is used for quickly and non-damagingly extinguishing a fire in the ring network cabinet 10.

[0046] Among them, Figure 3-Figure 6 As shown, the automatic limit assembly 30 includes two guide rails 31 and two sliding seats 32 respectively slidably arranged on both sides of the guide rails 31, a swing plate 33 is swingably arranged between the two sliding seats 32, and a swing rod 34 is rotatably arranged at both ends of the swing plate 33, and the two ends of the two swing rods 34 are rotatably connected to the middle part of the end faces of the two sliding seats 32; a reduction gear 35 is fixedly arranged at the bottom of the swing plate 33, the reduction gear 35 is rotatably connected to the ring network cabinet 10 and a driving gear 36 is meshed with one side of the reduction gear 35, and a driving motor 37 for driving the driving gear 36 is fixedly arranged in the ring network cabinet 10.

[0047] It should be noted that the driving motor 37 can drive the driving gear 36 to rotate, and the driving gear 36 drives the reduction gear 35 meshing with it to rotate. The rotation of the reduction gear 35 can drive the swing plate 33 to swing. When the two ends of the swing plate 33 swing toward the two sliding seats 32 respectively, the two swing rods 34 will push the two sliding seats 32 to move toward each other.

[0048] Furthermore, when the driving motor 37 drives the swing plate 33 to swing in the reverse direction, the two ends of the swing plate 33 will move away from the two sliding seats 32, and the two swing rods 34 will pull the two sliding seats 32 to move relative to each other.

[0049] Among them, Figure 3 , Figure 4 and Figure 6 As shown, two U-shaped hanging rods 38 are respectively arranged on the two sliding seats 32, and a limiting plug post 39 is fixedly arranged on one end of the hanging rod 38 close to the installation groove 11. One end of the limiting plug post 39 passes through the installation groove 11 and is plugged into the limiting slot provided on the fixed base 21.

[0050] In detail, when the two sliding seats 32 move relative to each other, the hanging rod 38 and the limiting plug 39 will be driven to move toward the side close to the limiting slot until the limiting plug 39 is inserted into the limiting slot, so that the fixed base 21 can be quickly fixed in the installation groove 11. When the two sliding seats 32 move toward each other, the hanging rod 38 and the limiting plug 39 will be driven to move away from the limiting slot until the limiting plug 39 is separated from the limiting slot, so that the dual power quick switching switch 20 can be installed and disassembled more conveniently and quickly, which is convenient for later maintenance operations.

[0051] Among them, Figure 7-Figure 11 , Fig.13 and Fig.14 As shown, the clamping and anti-slipping component 40 includes an anti-slipping seat 41 which is fixed in the frame groove and is in an inverted L shape and has an arc groove on the top. A movable block 42 is arranged on the top of the anti-slipping seat 41. A limited clamping groove 43 is arranged at the bottom end of the movable block 42 corresponding to the arc groove, and an elastic protrusion is arranged on the inner wall of the limited clamping groove 43; an inverted U-shaped limiting seat 44 is arranged at the bottom of the anti-slipping seat 41, and limiting sleeves 45 are slidably arranged at both ends of the limiting seat 44. The limiting sleeve 45 is fixedly arranged on the side of the anti-slipping seat 41, and a push spring 46 is sleeved on the part of the limiting seat 44 located inside the limiting sleeve 45, and the two ends of the push spring 46 are respectively fixedly connected to the inner wall of the limiting sleeve 45 and a stopper fixedly arranged at one end of the limiting seat 44; a pull ring is fixedly arranged on the outer side surface of the limiting seat 44, and an arc-shaped limiting groove for limiting the connection line is arranged on the inner side surface.

[0052] Specifically, when the connecting wire needs to be connected to the dual power fast switching switch 20, the pull ring can be pulled to drive the limit seat 44 to move outward, and then the wiring end of the connecting wire is passed through the limit seat 44 and placed in the threading hole 24. At this time, the connecting wire will be limited in the arc groove. When the force on the pull ring is released, the limit seat 44 will be driven to return to its original position through the elasticity of the push spring 46. At this time, the limit seat 44 will apply a certain pressure to the connecting wire, so that the position of the connecting wire can be preliminarily limited.

[0053] Furthermore, the staff can repeat the above operations in sequence to insert multiple connecting wires that need to be connected into the threading holes 24 and perform preliminary positioning, and then fix the connecting wires one by one with screws.

[0054] Among them, Figure 7 and Fig. 9 As shown, an inverted L-shaped connecting base plate 47 is fixedly provided on one side of the top of the movable block 42 by bolts, and multiple connecting base plates 47 located on the same side are fixedly connected to the same fixed horizontal plate 48, and a fixing hole communicating with the threading hole 24 is provided on the top of the fixed horizontal plate 48 corresponding to the plug-in socket 23; the end close to the two fixed horizontal plates 48 is fixedly connected to the same U-shaped slide plate 49, and the U-shaped slide plate 49 is slidably mounted on the back of the dual power quick switching switch 20; the middle part of the U-shaped slide plate 49 is threadedly connected to an adjusting screw 410, both ends of the adjusting screw 410 are rotatably connected to the dual power quick switching switch 20 and a screw nut 411 is fixedly provided on the top of the adjusting screw 410.

[0055] It should also be noted that by turning the screw nut 411, the adjusting screw 410 can be driven to rotate. The rotation of the adjusting screw 410 will drive the U-shaped slide 49 threadedly connected to it to move upward or downward along the adjusting screw 410. When the U-shaped slide 49 moves downward, it will drive the fixed cross plate 48 and the connecting base plate 47 to move downward. The movement of the connecting base plate 47 will drive the movable block 42 to move downward until the movable block 42 is moved to contact and tighten the connecting line. At this time, the connecting line will be limited in the limiting and clamping groove 43, and the friction effect of the elastic protrusion can be used to further realize the clamping and limiting of the position of the connecting line.

[0056] Furthermore, when the connecting wire is pressed by the movable block 42, the connecting substrate 47 just contacts the socket 23. At this time, the staff can insert the fixing screws along the fixing holes to fix the connecting wires one by one. In this way, no supporting operation is required during the wiring process, which is more convenient and quick. After the wiring is fixed, even if it is accidentally touched or pulled, it will not cause the wiring head to fall off.

[0057] In detail, when it is necessary to disassemble one of the connecting wires, the fixing screws can be removed first, and then the fixing screws can be loosened to separate the corresponding movable block 42 from the connecting substrate 47. At this time, the movable block 42 will remove the pressure on the connecting wire, and then pull the pull ring to drive the limit seat 44 to move outward to remove the limit on the connecting wire. At this time, the connecting wire can be removed from the threading hole 24 for disassembly.

[0058] Among them, Figure 1 , Figure 2 , Fig.12 and Fig.15 As shown, the perfluorohexanone automatic fire extinguishing assembly 50 includes a perfluorohexanone fire extinguishing device 51, one side of the perfluorohexanone fire extinguishing device 51 is connected with at least three spraying pipes 52, one end of the spraying pipe 52 is connected with a metal hose 53, and one end of the metal hose 53 is connected with a spraying head 54; the outer sleeve of the spraying head 54 is provided with a fixed collar 55, the top ends of the multiple fixed collars 55 are fixedly connected with the same translation seat 56, the middle part of the translation seat 56 is threadedly connected with a screw rod 57, and the internal sliding rails 58 on both sides are slidably inserted, and a servo motor 59 for driving the screw rod 57 is provided on the back side of the ring network cabinet 10.

[0059] Specifically, a temperature and smoke detector can be arranged in the ring network cabinet 10. When the temperature and smoke values ​​in the ring network cabinet 10 are detected to be abnormal, the signal is transmitted to the controller. The controller controls the operation of the perfluorohexanone fire extinguishing device 51, and the perfluorohexanone is sprayed along multiple spray heads 54. Then, the servo motor 59 drives the translation seat 56 to reciprocate along the screw rod 57, so that the fire in the ring network cabinet 10 can be quickly extinguished. By arranging the metal hose 53 and arranging the servo motor 59 outside the ring network cabinet 10, it is possible to prevent the fire extinguishing of the perfluorohexanone automatic fire extinguishing component 50 from being affected after the fire occurs.

[0060] It should also be noted that the fire extinguishing medium used is perfluorohexanone, which is insulating, colorless, odorless, and non-corrosive to the internal components of the ring main unit. It has an excellent fire control effect and a fast fire extinguishing speed. It will not cause harm to the human body and the environment after spraying. It is suitable for fighting fires in confined spaces such as ring main units.

[0061] Working principle:

[0062] When installing the dual power fast switching switch 20, first place the fixed base 21 in the installation slot 11, then drive the motor 37 to drive the swing plate 33 to swing, and drive the two sliding seats 32 to move relative to each other through the cooperation of the swing plate 33 and the swing rod 34. The movement of the sliding seat 32 will drive the limit pin 39 to move until the limit pin 39 is moved into the limit slot, so as to quickly limit and fix the fixed base 21 in the installation slot 11;

[0063] When wiring the dual power fast switching switch 20, first pull the pull ring to drive the limit seat 44 to move outward, then pass the wiring end of the connecting line through the limit seat 44 and place it in the threading hole 24, at this time the connecting line will be limited in the arc groove, and then turn the screw nut 411 to drive the U-shaped slide plate 49 to move downward along the adjusting screw 410. When the U-shaped slide plate 49 moves downward, it will drive the fixed cross plate 48 and the connecting base plate 47 to move downward. The movement of the connecting base plate 47 will drive the movable block 42 to move downward until the movable block 42 is moved to contact and press the connecting line. At this time, the connecting line will be limited in the limiting and pressing groove 43, and the friction effect of the elastic protrusion is cooperated to further realize the compression and limiting of the position of the connecting line. When the connecting line is pressed by the movable block 42, the connecting base plate 47 just contacts with the socket 23, and the staff can insert the fixing screw along the fixing hole to fix the wiring of the connecting line one by one;

[0064] When the temperature sensor and the smoke detector detect that the temperature and smoke values ​​in the ring network cabinet 10 are abnormal, the signal is transmitted to the controller, and the perfluorohexanone fire extinguishing device 51 is controlled by the controller to operate. The perfluorohexanone will be sprayed along multiple spray heads 54, and then the servo motor 59 will drive the translation seat 56 to reciprocate along the screw rod 57, so as to realize rapid fire extinguishing in the ring network cabinet 10.

[0065] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual power supply fast switching ring main unit, characterized in that: It comprises a ring network cabinet (10) and a dual power supply fast switching switch (20) arranged in the ring network cabinet (10); The dual power supply fast switching switch (20) comprises a fixed base (21) and a switch outer shell (22) arranged at the top of the fixed base (21); the fixed base (21) is located in a mounting groove (11) provided in the ring network cabinet (10); and an automatic limit assembly (30) for limiting and fixing the position of the fixed base (21) in the mounting groove (11) is provided at the bottom of the mounting groove (11); A plug socket (23) is fixedly provided on both sides of the back of the switch housing (22); at least three frame grooves are equidistantly provided on the front of the plug socket (23); each of the frame grooves has a threading hole (24); and a compression and anti-dropping component (40) is provided in the frame groove for limiting the position of the wire inserted into the threading hole (24) to prevent it from falling off; The clamping and anti-slipping assembly (40) comprises an anti-slipping seat (41) fixed in the frame groove in an inverted L shape and having an arc groove at the top, a movable block (42) is arranged on the top of the anti-slipping seat (41), a limited clamping groove (43) is arranged at the bottom end of the movable block (42) corresponding to the arc groove, and an elastic protrusion is arranged on the inner wall of the limited clamping groove (43); An inverted U-shaped limiting seat (44) is arranged at the bottom of the anti-slip seat (41), limiting sleeves (45) are slidably arranged at both ends of the limiting seat (44), the limiting sleeve (45) is fixedly arranged on the side of the anti-slip seat (41), and a push spring (46) is sleeved on the part of the limiting seat (44) located inside the limiting sleeve (45), and the two ends of the push spring (46) are respectively fixedly connected to the inner wall of the limiting sleeve (45) and a stopper fixedly arranged at one end of the limiting seat (44); A pull ring is fixedly provided on the outer side surface of the limiting seat (44), and an arc-shaped limiting groove for limiting the position of the wiring is provided on the inner side surface of the limiting seat (44); An inverted L-shaped connecting base plate (47) is fixedly provided on one side of the top of the movable block (42) by means of bolts, and a plurality of connecting base plates (47) located on the same side are fixedly connected to the same fixed horizontal plate (48), and a fixing hole communicating with the threading hole (24) is provided at the top of the fixed horizontal plate (48) corresponding to the plug socket (23); The adjacent ends of the two fixed horizontal plates (48) are fixedly connected to a same U-shaped slide plate (49), and the U-shaped slide plate (49) is slidably sleeved on the back of the dual power supply fast switching switch (20); An adjusting screw (410) is threadedly connected to the middle of the U-shaped slide plate (49), both ends of the adjusting screw (410) are rotatably connected to the dual power supply fast switching switch (20), and a screw nut (411) is fixedly provided on the top of the adjusting screw (410); A perfluorohexanone automatic fire extinguishing component (50) is arranged at the top of the inner cavity of the ring network cabinet (10), and the perfluorohexanone automatic fire extinguishing component (50) is used to quickly and non-damagingly extinguish a fire after it occurs in the ring network cabinet (10).

2. A dual power supply fast switching ring main unit according to claim 1, characterized in that: The automatic limit assembly (30) comprises two guide rails (31) and two sliding seats (32) respectively slidably arranged on both sides of the guide rails (31); a swing plate (33) is swingably arranged between the two sliding seats (32); one end of a swing rod (34) is rotatably arranged at both ends of the swing plate (33); the other end of the swing rod (34) is rotatably connected to the middle of the end surface of the adjacent sliding seat (32).

3. A dual power supply fast switching ring main unit according to claim 2, characterized in that: A reduction gear (35) is fixedly disposed at the bottom of the swing plate (33); the reduction gear (35) is rotationally connected to the ring network cabinet (10); a driving gear (36) is meshed with one side of the reduction gear (35); and a driving motor (37) for driving the driving gear (36) is fixedly disposed inside the ring network cabinet (10).

4. The dual power supply fast switching ring main unit according to claim 2, characterized in that: Two U-shaped hanging rods (38) are respectively arranged opposite to each other on the two sliding seats (32), and a limiting plug post (39) is fixedly arranged on one end of the hanging rod (38) close to the installation slot (11), and one end of the limiting plug post (39) passes through the installation slot (11) and is matched and plugged into a limiting slot provided on the fixed base (21).

5. The dual power supply fast switching ring main unit according to claim 1, characterized in that: The perfluorohexanone automatic fire extinguishing assembly (50) comprises a perfluorohexanone fire extinguishing device (51), one side of the perfluorohexanone fire extinguishing device (51) is connected to at least three spray pipes (52), one end of the spray pipe (52) is connected to a metal hose (53), and one end of the metal hose (53) is connected to a spray head (54).

6. A dual power supply fast switching ring main unit according to claim 5, characterized in that: The spray head (54) is sleeved with a fixed collar (55) on the outside, the top ends of the plurality of fixed collars (55) are fixedly connected to the same translation seat (56), the middle of the translation seat (56) is threadedly connected to a screw rod (57), the inside of both sides of the translation seat (56) are slidably plugged with slide rails (58), and a servo motor (59) for driving the screw rod (57) is arranged on the back side of the ring network cabinet (10).

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