CN204361566U - Small-sized armored intelligence solid insulation switch - Google Patents

Abstract

The utility model discloses a small armored intelligent solid insulation switch, which comprises an armored cabinet body (1), a busbar room (50), a circuit breaker room (8), a cable room (51), and an instrument room (2). , four compartments; wherein the cable room (51) is at the bottom of the miniaturized armored cabinet (1), and the cable room (51) is equipped with a cable room protective door (52) in front of the cable room (51); It is a circuit breaker room (8), and a cable wall bushing (47) is installed on the front partition of the cable room (51), one end is connected with the lower insulating busbar (31) of the grounding switch (32), and the other end is connected with the inlet and outlet Wire and cable (49) are connected, and the side of the cable chamber of the cable through the wall (47) is worn with a three-phase integrated current transformer (53).

Description

Small Armored Intelligent Solid Insulated Switch

technical field

The utility model relates to a switch cabinet, in particular to a small armored intelligent solid insulation switch.

Background technique

At present, the volume of the switchgear in the existing technology is relatively large, and the circuit breaker handcart adopts plum blossom contacts or duckbill contacts. The positioning accuracy of the handcart is mostly about 3mm, and it is easy to cause poor contact and heat to cause insulation accidents; and the degree of intelligence is relatively low. .

For example, Chinese patent CN 101447652 discloses a switchgear with a switchgear housing, which is bounded on its upper side by an upper cover plate, and has at least one switchgear door on its front side, In this case, a plurality of transport lugs are provided on the upper side of the switchgear housing, and the transport lugs can be covered by a detachably fastened top cover. The transport eyelets are formed from angled elements which each have a leg protruding from the upper cover and provided with a through-opening and a fastening leg at an angle to the leg. The fastening legs of at least some of the angled elements each have a fastening region with which the fastening legs are arranged on the upper side of the switchgear housing and a holding region with which the fastening legs engage from behind An edge profile formed on the top cover. This kind of switchgear has a large volume and is prone to poor contact.

To sum up, it can be seen that the existing switch cabinets in the prior art have the problems of taking up a large space, prone to poor contact and inconvenient maintenance.

Utility model content

Aiming at the problems in the prior art, the utility model provides a small armored intelligent solid insulated switch with small footprint, high insulation degree and convenient maintenance.

In order to achieve the above purpose, the technical solution of the utility model is: a small armored intelligent solid insulated switch, including an armored cabinet and a busbar room, a circuit breaker room, a cable room, an instrument room, and four compartments; The cable room is at the lower part of the miniaturized armored cabinet, and the cable room protective door is installed in front of the cable room; the upper front half of the cable room is a circuit breaker room, and the cable wall bushing is installed on the front partition of the cable room. It is connected with the lower insulated bus bar of the grounding switch, and one end is connected with the incoming and outgoing cables. At the same time, a three-phase integrated current transformer is passed through the side of the cable room of the cable through the wall bushing; The front part above the instrument room is the instrument room, and the instrument door for installing instruments and protective devices is installed in front of the instrument room; the pressure relief hole of the circuit breaker room and the pressure relief hole of the busbar room in the middle room are the pressure relief holes of the cable room behind the busbar room. A circuit breaker is installed in the circuit breaker room, and the circuit breaker is equipped with a circuit breaker operating mechanism, the spine of the arc extinguishing chamber, the upper moving contact and the lower moving contact of the circuit breaker installed on the spine of the arc extinguishing chamber, and the extinguishing chamber in the spine of the arc extinguishing chamber. The static contact of the arc chamber is connected to the upper moving contact of the circuit breaker; the moving contact of the arc extinguishing chamber in the spine of the arc extinguishing chamber is connected to the soft connection of the arc extinguishing chamber, and the soft connection of the arc extinguishing chamber is connected to the lower moving contact of the circuit breaker; An insulating pull rod is installed under the moving contact of the arc extinguishing chamber. The insulating pull rod is connected to one end of the large transmission crank arm through a cross shaft, the other end of the large transmission crank arm is connected to one end of the contact spring, and the other end of the contact spring is connected to the small transmission crank arm Connection, the other end of the small transmission crank arm is connected to the joint bearing, and the joint bearing is connected to the operating mechanism; the operating mechanism of the circuit breaker moves left and right to drive the joint bearing to move up and down, the joint bearing drives the arc extinguishing chamber contact spring to move up and down, and the arc extinguishing chamber contact The spring drives the large transmission crank arm to move up and down, and the large transmission crank arm drives the insulating pull rod to move up and down. At the same time, the moving contact of the arc extinguishing chamber mounted on the insulating pull rod moves up and down and the static contact of the arc extinguishing chamber realizes closing and breaking; The protective door of the circuit breaker room is installed in the front, and the intelligent display control device is installed on the protective door of the circuit breaker room; the upper static contact box and the lower static contact box are installed on the partition between the circuit breaker room and the busbar room; The upper static contact box and the lower static contact box of the circuit breaker room are equipped with anti-shock valves in front of them, and the anti-shock valves are installed on the valve guide rails; There is an interlocking device with the circuit breaker to ensure that the anti-shock valve of the circuit breaker is opened in the working position, and the anti-shock valve is closed when the circuit breaker is in the withdrawn position; a circuit breaker propulsion device with interlocking function with the grounding switch is installed in front of the bottom plate of the circuit breaker room ;A secondary circuit aviation socket is installed on the front top of the circuit breaker room, and an openable circuit breaker room protective door is installed on the front of the circuit breaker room, and a color liquid crystal display control device is installed on the circuit breaker room protective door; the side of the busbar room The side outlet bushing of the primary busbar is installed on the board, and the side outlet bushing and the terminal of the upper static contact box are connected by the upper insulating busbar, and a grounding switch is installed under the busbar room; the static contact terminal of the grounding switch is connected to the terminal of the busbar room The terminals of the three lower contact boxes are connected by the lower insulated bus bar, and at the same time, they are wired to one side of the bus bar room of the cable wall bushing installed in the cable room and the bus bar room connection; among them, three moving contacts of the earthing switch are installed on the main shaft of the earthing switch in the busbar room to connect with the earthing conductor through soft braided wires, and the bevel gear of the earthing switch is installed on the right side of the driving shaft of the earthing switch, and the bevel gear of the earthing switch is fixed on the The right side of the grounding switch bracket; one end of the grounding switch driven shaft in the cable room is connected to the grounding switch bevel gear, and the grounding switch interlocking cam and transmission sprocket are installed at one end; at the same time, the grounding switch driven shaft is fixed on the cable room bearing bracket Above; the transmission sprocket is equipped with a grounding switch transmission chain, and at the same time it is connected with the grounding switch sprocket on the grounding switch driving shaft of the cable room to realize power transmission; the grounding switch driving shaft is supported on the bearing bracket, and the bearing bracket is fixed on the cable through bolts The side plate of the room; the cable room door interlock cam is installed on the driving shaft of the grounding switch, and there is a cable room door interlocking device installed on the side plate of the cable room under the cable room door interlocking cam; the grounding switch driven The grounding switch interlocking cam is installed on the shaft, and the grounding switch auxiliary switch is installed under the grounding switch interlocking cam; the grounding switch driving shaft drives the grounding switch driven shaft through the grounding switch sprocket and the grounding switch transmission chain to make the three on the grounding switch The moving contact of the earthing switch is rotated upwards or downwards; a circuit breaker interlocking drive shaft is installed on the column at the front right of the cable room, and a circuit breaker interlocking cam and a circuit breaker interlocking device are installed on the side of the circuit breaker interlocking drive shaft Realize the locking of the position of the circuit breaker, prevent the circuit breaker from being charged and close the grounding switch at the working position, and at the same time realize that the handcart of the circuit breaker cannot enter the working position when the grounding switch is in the closed state; one end of the three cable room wall bushings is connected with The cable ends of the cables appearing are connected, the three cables extend downward to the cable outdoor, and the other ends of the wall bushings of the three cables are connected with the static contacts of the grounding switch.

As an improvement, the armored cabinet is an armored 500mm wide miniaturized cabinet.

As an improvement, a cable wall bushing is installed on the front partition of the cable room, and one end thereof is connected to the lower insulating bus bar of the grounding switch.

As an improvement, a circuit breaker room protective door is installed in front of the circuit breaker room, and an intelligent display control device is installed on the circuit breaker room protective door.

As an improvement, the opening and closing valve transmission chain mechanism 30 of the anti-shock valve is installed on the bottom plate of the circuit breaker chamber.

As an improvement, a three-phase integrated current transformer is installed on the side of the cable chamber of the cable wall bushing.

As an improvement, the grounding switch bevel gear is installed on the right side of the grounding switch driving shaft, and the grounding switch bevel gear is fixed on the right side of the grounding switch bracket by bolts.

As an improvement, an earthing switch interlocking cam and a drive sprocket are installed at said one end. At the same time, the driven shaft of the grounding switch is fixed on the bearing bracket of the cable room.

As an improvement, the grounding switch driving shaft drives the grounding switch driven shaft through the grounding switch sprocket 56 and the grounding switch transmission chain to rotate the three grounding knife movable contacts 34 on the grounding switch by 90° upward or downward.

According to the above scheme, it can be seen that the utility model has the following advantages: Compared with the current switchgear, the armored miniaturized intelligent solid insulation switchgear of the utility model adopts the solid insulation method, and the volume of the switchgear is relatively small, which reduces the occupation. The floor area is convenient for installation. The positioning accuracy of the circuit breaker contacts is high, and it is not easy to cause poor contact and overheating. It adopts an intelligent touch display control device with self-diagnosis and alarm functions, monitoring and measurement. The intelligent control function can monitor the position of the handcart, the operation of the circuit breaker control unit, and can The intelligent unit communicates with the upper computer through the communication system. This ensures the power supply safety of the power supply system and facilitates the maintenance of operators.

Description of drawings

Fig. 1 is a side view of the armored miniaturized intelligent solid insulated switchgear of the present invention.

(In order to see the internal parts of the fully armored miniaturized intelligent solid insulated switchgear, the side wall of the armored miniaturized intelligent solid insulated switchgear is removed);

Figure 2 is a top view of the armored miniaturized intelligent solid insulation switchgear.

As shown in the figure: 1 Armored cabinet; 2 Instrument room; 3 Instrument door; 4 Pressure relief hole in circuit breaker room; 5 Pressure relief hole in busbar room; 6 Pressure relief hole in cable room; Circuit breaker; 10 secondary aviation socket; 11 protective door of circuit breaker room; 12 circuit breaker operating machine; 13 joint bearing; 14 small transmission arm; Device, 18 Insulation pull rod; 19 Solid-sealed pole of arc extinguishing chamber; 20 Static contact of arc extinguishing chamber; 21 Soft connection of arc extinguishing chamber; 22 Moving contact of arc extinguishing chamber; 23 Upper moving contact of circuit breaker; 24 Upper static contact Head box; 25 lower moving contact of circuit breaker; 26 lower static contact box; 27 circuit breaker chamber valve guide rail; 28 electric shock prevention valve; 29 upper insulating busbar; 30 valve driving chain mechanism; 33 grounding switch static contact; 34 grounding switch moving contact; 35 grounding switch bracket; 36 grounding switch bevel gear; 37 grounding switch interlocking cam; 38 grounding switch driven shaft; 39 grounding switch transmission chain; 40 transmission sprocket; 41 Cable compartment door interlocking device; 42 Cable compartment door interlocking cam; 43 Grounding switch driving shaft; 44 Circuit breaker interlocking cam; 45 Circuit breaker interlocking drive shaft; 46 Circuit breaker interlocking device; 47 Cable compartment wall sleeve Tube; 48 cable head; 49 cable; 50 busbar room; 51 cable room; 52 cable room protective door; 53 three-wire integrated current transformer; 54 color liquid crystal display control device; 55 side outlet bushing; 56 grounding switch sprocket ;57 Earthing switch auxiliary switch.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

A small armored intelligent solid insulated switch, including an armored cabinet 1 and a busbar room 50, a circuit breaker room 8, a cable room 51, an instrument room 2, and four compartments; wherein the cable room 51 is in a miniaturized armored In the lower part of the cabinet body 1, a cable room protective door 52 is installed in front of the cable room 51; the circuit breaker room 8 is located in the front half above the cable room 51, and a cable wall bushing 47 is installed on the front partition of the cable room 51. One end It is connected with the lower insulated busbar 31 of the grounding switch 32, and one end is connected with the incoming and outgoing cables 49, and at the same time, a three-phase integrated current transformer 53 is worn on the side of the cable chamber through the wall bushing 47; the rear half above the cable chamber 51 is the busbar Room 50, above the circuit breaker room 8 is the instrument room 2, in front of the instrument room 2 is equipped with an instrument door 3 for installing instruments and protection devices; the middle room circuit breaker room pressure relief hole 4 and the bus room pressure relief hole 5 , behind the busbar room 50 is the pressure relief hole 6 of the cable room, a circuit breaker 9 is installed in the circuit breaker room 8, a circuit breaker operating mechanism 12 is installed on the circuit breaker 9, the arc extinguishing chamber spine 19 is installed on the arc extinguishing chamber spine 19 The upper moving contact 23 and the lower moving contact 25 of the circuit breaker, the static contact 20 of the arc extinguishing chamber in the arc extinguishing chamber spine 19 are connected with the upper moving contact 23 of the circuit breaker; the arc extinguishing chamber in the arc extinguishing chamber spine 19 The moving contact 22 is connected with the soft connection 21 of the arc extinguishing chamber, and the soft connection 21 of the arc extinguishing chamber is connected with the lower moving contact 25 of the circuit breaker; an insulating pull rod 18 is installed under the moving contact of the arc extinguishing chamber, and the insulating pull rod 18 is connected to the One end of the large transmission crank arm 16 is connected, the other end of the large transmission crank arm is connected with one end of the contact spring 15, the other end of the contact spring 15 is connected with the small transmission crank arm 14, and the other end of the small transmission crank arm 14 is connected with the joint bearing 13 , the joint bearing 13 is connected with the operating mechanism; the operating mechanism 12 of the circuit breaker 9 moves left and right to drive the joint bearing 13 to move up and down, the joint bearing 13 drives the arc extinguishing chamber contact spring 15 to move up and down, and the arc extinguishing chamber contact spring 15 drives the large transmission switch The arm 16 moves up and down, and the large transmission arm 16 drives the insulating pull rod 18 to move up and down. At the same time, the moving contact 22 of the arc extinguishing chamber installed on the insulating pulling rod 18 moves up and down and the static contact 20 of the arc extinguishing chamber realizes closing and breaking; 8 is equipped with a circuit breaker room protective door 11, and an intelligent display control device is installed on the circuit breaker room protective door; an upper static contact box 24 and a lower static contact box 24 are installed on the partition between the circuit breaker room 8 and the busbar room 50. Contact box 26; in front of the upper static contact box 24 and the lower static contact box 26 of the circuit breaker chamber 8, an anti-shock valve 28 is installed, and the anti-electric shock valve 28 is installed on the valve guide rail 27; on the bottom plate of the circuit breaker chamber 8 The opening and closing valve transmission chain mechanism 30 equipped with the electric shock prevention valve 28 is equipped with an interlocking device between the circuit breaker 9 to ensure that the electric shock prevention valve 28 of the circuit breaker 9 is opened in the working position, and the electric shock prevention valve 28 is closed when the circuit breaker is in the withdrawn position; A circuit breaker propulsion device 17 with interlocking function with the grounding switch 32 is installed in front of the bottom plate of the circuit breaker chamber 8; a secondary circuit aviation socket 10 is installed on the top of the front of the circuit breaker chamber 9, and an openable The protective door of the circuit breaker room, the protective door of the circuit breaker room There is a control device 54 with a color liquid crystal display; the side plate of the busbar chamber 9 is equipped with a side outlet bushing 55 of the primary busbar, and the side outlet bushing 55 is connected to the terminal of the upper static contact box 24 by the upper insulating busbar 29. The grounding switch 32 is installed below the busbar chamber 50; the static contact 33 terminals of the grounding switch 32 are connected with the terminals of the three lower contact boxes 26 of the busbar chamber 50 by the lower insulating busbar 31, and are installed in the cable chamber 51 and The cable of the busbar room 50 is connected with the side line of the busbar room 50 of the wall bushing 47; wherein three earthing switch moving contacts 34 are installed on the main shaft of the grounding switch 32 of the busbar room 50. The right side of the switch drive shaft 43 is equipped with a grounding switch bevel gear 36, and the grounding switch bevel gear 36 is fixed on the right side of the grounding switch bracket 35 by bolts; wherein one end of the grounding switch driven shaft 38 in the cable chamber 51 is connected to the grounding switch bevel gear 36 connection, one end is equipped with the grounding switch interlocking cam 37 and the transmission sprocket 40; at the same time, the grounding switch driven shaft 38 is fixed on the bearing bracket of the cable room; The grounding switch sprocket 56 on the grounding switch driving shaft 43 of the grounding switch is connected to realize power transmission; the grounding switch driving shaft 43 is mounted on the bearing bracket, and the bearing bracket is fixed on the side plate of the cable chamber 51 by bolts; Also installed cable chamber door interlock cam 42, there is a cable chamber door interlock device 41 installed on the cable chamber 51 side plate below the cable chamber door interlock cam 42; Locking cam 37, grounding switch auxiliary switch 57 is equipped with grounding switch interlocking cam 37 below; Grounding switch driving shaft 43 drives grounding switch driven shaft 38 by grounding switch sprocket wheel 56 and grounding switch transmission chain 39 and makes three on the grounding switch 32 A grounding switch moving contact 34 rotates upwards or downwards by 90°; a circuit breaker interlocking drive shaft 45 is installed on the column at the right front of the cable chamber 51, and a circuit breaker interlocking cam is installed on one side of the circuit breaker interlocking drive shaft 45 44 and the circuit breaker interlocking device 46 realize the locking of the position of the circuit breaker, prevent the circuit breaker 9 from being electrified and close the grounding switch 32 in the working position, and also realize that the handcart of the circuit breaker 9 cannot enter the working position in the closed state of the grounding switch 32 ; One end of the three cable chamber wall bushings 47 is connected to the cable head 48 where the cable 49 appears, and the three cables 49 extend downward to the outside of the cable chamber 51, and the other ends of the three cable wall bushings 47 are connected to the grounding switch The static contact 33 is connected; the armored cabinet body 1 is an armored small cabinet. A cable wall bushing 47 is installed on the front partition of the cable chamber 51 and one end thereof is connected to the lower insulating bus bar 31 of the grounding switch 32 . A circuit breaker room protection door 11 is installed in front of the circuit breaker room 8, and an intelligent display control device is installed on the circuit breaker room protection door. The opening and closing valve transmission chain mechanism 30 of the electric shock prevention valve 28 is housed on the bottom plate of the described circuit breaker chamber 8 . A three-phase integrated current transformer 53 is pierced on the side of the cable chamber of the cable wall bushing 47 . The grounding switch bevel gear 36 is installed on the right side of the grounding switch driving shaft 43, and the grounding switch bevel gear 36 is fixed on the grounding switch support 35 right side by bolts. The one end is equipped with an earthing switch interlocking cam 37 and a driving sprocket 40 . Simultaneously grounding switch driven shaft 38 is fixed on the cable chamber bearing support. The grounding switch driving shaft 43 drives the grounding switch driven shaft 38 through the grounding switch sprocket 56 and the grounding switch transmission chain 39 to rotate the three grounding knife movable contacts 34 on the grounding switch 32 upward or downward by 90°.

It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solutions described in the embodiments of the utility model. Those of ordinary skill in the art should understand that the utility model can still be Novel modification or equivalent replacement, to achieve the same technical effect; as long as the needs of use are met, it is all within the protection scope of the present utility model.

Claims (9)

1. A small armored type intelligent solid insulated switch is characterized in that: it comprises an armored cabinet body (1) and a busbar room (50), a circuit breaker room (8), a cable room (51), an instrument room (2 ), four compartments; wherein the cable room (51) is at the bottom of the miniaturized armored cabinet body (1), and the cable room protective door (52) is installed in front of the cable room (51); the front half of the top of the cable room (51) The first part is the circuit breaker room (8), and the cable wall bushing (47) is installed on the front partition of the cable room (51), one end is connected with the lower insulating busbar (31) of the grounding switch (32), and the other end is connected with the The incoming and outgoing cables (49) are connected to each other, and the cable chamber side of the cable wall bushing (47) is pierced with a three-phase integrated current transformer (53); The upper front part of the circuit breaker room (8) is the instrument room (2), and the instrument door (3) for installing instruments and protective devices is installed in front of the instrument room (2); the middle room circuit breaker room pressure relief hole (4) and The pressure relief hole (5) in the busbar room, behind the busbar room (50) is the pressure relief hole (6) in the cable room, a circuit breaker (9) is installed in the circuit breaker room (8), and a circuit breaker (9) is installed Operating mechanism (12), arc extinguishing chamber spine (19), circuit breaker upper moving contact (23) and lower moving contact (25) installed on the arc extinguishing chamber spine (19), arc extinguishing chamber spine (19) The static contact (20) of the arc extinguishing chamber inside is connected with the moving contact (23) on the circuit breaker; ) connection, the soft connection (21) of the arc extinguishing chamber is connected with the lower moving contact (25) of the circuit breaker; the insulating pull rod (18) is installed under the moving contact of the arc extinguishing chamber, and the insulating pull rod (18) is connected to the large transmission through the cross shaft One end of the crank arm (16) is connected, the other end of the large transmission crank arm is connected with an end of the contact spring (15), the other end of the contact spring (15) is connected with the small transmission crank arm (14), and the small transmission crank arm (14 ) the other end is connected with the joint bearing (13), and the joint bearing (13) is connected with the operating mechanism; the operating mechanism (12) of the circuit breaker (9) moves left and right to drive the joint bearing (13) to move up and down, and the joint bearing (13) drives The arc chamber contact spring (15) moves up and down, the arc extinguishing chamber contact spring (15) drives the large transmission crank arm (16) to move up and down, and the large transmission crank arm (16) drives the insulating pull rod (18) to move up and down and is installed on the insulation The moving contact (22) of the arc extinguishing chamber on the pull rod (18) moves up and down to realize closing and breaking with the static contact (20) of the arc extinguishing chamber; a protective door (11 ), an intelligent display control device is installed on the protective door of the circuit breaker room; an upper static contact box (24) and a lower static contact box ( 26); Anti-shock valves (28) are installed in front of the upper static contact box (24) and the lower static contact box (26) of the circuit breaker chamber (8), and the anti-electric shock valves (28) are installed on the valve guide rails (27 ) on the bottom plate of the circuit breaker room (8) is equipped with anti-shock The opening and closing of the valve (28) The valve transmission chain mechanism (30) is equipped with an interlocking device with the circuit breaker (9) to ensure that the circuit breaker (9) is opened in the working position and the electric shock prevention valve (28) is opened. The anti-shock valve (28) is closed; a circuit breaker propulsion device (17) with interlocking function with the grounding switch (32) is installed in front of the bottom plate of the circuit breaker chamber (8); The secondary circuit aviation socket (10), the circuit breaker room (9) is equipped with an openable circuit breaker room protection door, and the circuit breaker room protection door is equipped with a control device (54) with a color liquid crystal display; the busbar room (9) The side plate of the primary busbar is equipped with a side outlet bushing (55), and the side outlet bushing (55) is connected to the terminal of the upper static contact box (24) by the upper insulating busbar (29). In the busbar room (50) The grounding switch (32) is installed below; the terminal of the static contact (33) of the grounding switch (32) is connected with the terminals of the three lower contact boxes (26) of the busbar chamber (50) by the lower insulating busbar (31) , and at the same time connected to one side line of the busbar room (50) installed in the cable room (51) and the busbar room (50) of the cable wall bushing (47); on the main shaft of the grounding switch (32) of the busbar room (50) Three grounding switch moving contacts (34) are installed to connect with the grounding conductor through soft braided wires, the grounding switch bevel gear (36) is installed on the right side of the grounding switch driving shaft (43), and the grounding switch bevel gear (36) is connected through the bolt Fixed on the right side of the grounding switch bracket (35); wherein one end of the grounding switch driven shaft (38) in the cable chamber (51) is connected to the grounding switch bevel gear (36), and one end is installed with the grounding switch interlocking cam (37) and the transmission sprocket (40); at the same time, the driven shaft (38) of the grounding switch is fixed on the bearing bracket of the cable chamber; The grounding switch sprocket (56) on the switch driving shaft (43) is connected to realize power transmission; the grounding switch driving shaft (43) is mounted on the bearing bracket, and the bearing bracket is fixed on the side plate of the cable chamber (51) by bolts; The cable compartment door interlock cam (42) is also installed on the grounding switch driving shaft (43), and there is a cable compartment door interlock device installed on the side plate of the cable compartment (51) below the cable compartment door interlock cam (42). (41); the grounding switch interlocking cam (37) installed on the grounding switch driven shaft (38), and the grounding switch interlocking cam (37) is equipped with the grounding switch auxiliary switch (57); the grounding switch driving shaft (43) The grounding switch driven shaft (38) is driven by the grounding switch sprocket (56) and the grounding switch transmission chain (39) so that the three grounding switch moving contacts (34) on the grounding switch (32) are rotated 90° upward or downward ; A circuit breaker interlock transmission shaft (45) is installed on the right front column of the cable chamber (51), and a circuit breaker interlock cam (44) is installed on the side of the circuit breaker interlock transmission shaft (45) to interlock with the circuit breaker Device (46) realizes the locking of circuit breaker position , to prevent the circuit breaker (9) from being electrified and close the grounding switch (32) in the working position, and also realize that the handcart of the grounding switch (32) in the closing state of the circuit breaker (9) cannot enter the working position; three cable rooms pass through the wall One end of the casing (47) is connected with the cable head (48) where the cables (49) appear, and the three cables (49) extend downward to the outside of the cable chamber (51), and the three cables go through the wall casing (47) The other end is connected with the grounding switch static contact (33). 2. The small armored intelligent solid insulated switch according to claim 1, characterized in that: the armored cabinet (1) is an armored 500mm wide miniaturized cabinet. 3. The small armored intelligent solid insulated switch according to claim 1, characterized in that: one end of the cable wall bushing (47) and the grounding switch ( 32) the lower insulating busbar (31) is connected. 4. The small armored intelligent solid insulated switch according to claim 1, characterized in that: a circuit breaker room protection door (11) is installed in front of the circuit breaker room (8), and a circuit breaker room protection door is equipped with Intelligent display control device. 5. The small-sized armored intelligent solid insulated switch according to claim 1, characterized in that: the bottom plate of the circuit breaker chamber (8) is equipped with a drive chain mechanism (30) for opening and closing the electric shock valve (28) . 6. The small armored intelligent solid insulated switch according to claim 1, characterized in that: the cable chamber side of the cable wall bushing (47) is pierced with a three-phase integrated current transformer (53). 7. The small armored intelligent solid insulated switch according to claim 1, characterized in that: the grounding switch bevel gear (36) is installed on the right side of the grounding switch driving shaft (43), and the grounding switch bevel gear (36) passes through The bolt is fixed on the right side of the grounding switch bracket (35). 8. The small armored intelligent solid insulated switch according to claim 1, characterized in that: said one end is equipped with a grounding switch interlock cam (37) and a transmission sprocket (40) while the grounding switch driven shaft (38) is fixed On the cable housing bearing bracket. 9. The small armored intelligent solid insulated switch according to claim 1, characterized in that: said grounding switch driving shaft (43) drives the grounding switch driven Axle (38) makes three earthing knife moving contacts (34) on the earthing switch (32) rotate 90 ° upwards or downwards.