Environment-friendly circuit breaker with built-in outdoor isolating knife

Abstract

The invention discloses an environment-friendly circuit breaker with a built-in outdoor isolating knife in the technical field of switch equipment, and aims to solve the problems that the prior art does not have the function of an isolating switch generally, and an independent isolating switch must be installed beside the circuit breaker to be matched with the circuit breaker for use; and meanwhile, the existing switch equipment is relatively dispersed in structure, relatively complicated in installation process and relatively large in occupied space. The device comprises a box body, a deep-melting pole is arranged in the box body, a circuit breaker operating mechanism and an isolation operating mechanism are arranged on the box body, and a sleeve assembly is arranged on one side of the deep-melting pole on the box body; the arc extinguish chamber and the wire outlet seat are compactly designed in the deep-fusion pole, and the isolation blade assembly is arranged, so that a circuit breaker and an isolation switch are close in space, the number of connected conductive parts is small, the rotational inertia is small, the opening and closing time is shortened, the stability and reliability of action are improved, high-voltage and low-voltage components are highly integrated, and the cost is reduced. And physical isolation of the line can be realized without installing an independent isolation switch, so that the safety is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to an outdoor built-in isolating knife environmental protection type circuit breaker, belonging to the technical field of switch equipment. BACKGROUND

[0002] High-voltage switch equipment is the key equipment for power transmission and control in the power grid. The switch equipment widely used in the current medium-voltage power distribution market is filled with SF6 and other high-voltage or micro-positive pressure gas inside. The environmental protection normal pressure circuit breaker is filled with an air pressure of environmental protection gas, and there is no internal and external pressure difference, which eliminates the danger caused by gas leakage from the source, and is more in line with the green, environmental protection and low-carbon lifestyle. Compared with the design scheme that the main circuit components of most distribution network switch equipment are sealed in one box, the three-phase split isolation structure not only greatly improves the insulation margin in phase-to-phase insulation, but also can maximize the prevention of further spread of faults when a phase appears relative to ground short circuit. In the operation of the power grid equipment, safety is always the first. When the circuit is cut off or conducted, the operation and maintenance personnel need to visually observe the opening and closing of the circuit. Since the conventional outdoor switch does not have the function of isolating switch, an independent isolating switch must be installed beside it for use.

[0003] In summary, the existing outdoor switch equipment usually does not have the function of isolating switch, and an independent isolating switch must be installed beside it for use. At the same time, the structure of the existing switch equipment is relatively dispersed, the installation process is relatively complex, the occupied space is relatively large, and the safety is relatively poor, which affects the actual use effect of the switch equipment. SUMMARY

[0004] The purpose of the present application is to overcome the deficiencies in the prior art, and provide an outdoor built-in isolating knife environmental protection type circuit breaker, which has an arc-extinguishing chamber and an outgoing line seat in the compact design of the deep fusion pole, and is provided with an isolating knife assembly, so that the circuit breaker and the isolating switch are close in space, the number of connected conductive parts is small and the rotational inertia is small, the opening and closing time is shortened, the stability and reliability of the action are improved, the components are highly integrated, the physical isolation of the line can be realized without installing an independent isolating switch, the safety is enhanced, and the work load of on-site installation and debugging is greatly reduced.

[0005] To solve the above technical problems, the present application is realized by using the following technical scheme: The present application provides an outdoor built-in isolating knife environmental protection type circuit breaker, comprising a box body, a deep fusion pole is arranged in the box body, a circuit breaker operating mechanism and an isolating operating mechanism are arranged on the box body, and a bushing assembly is arranged on one side of the deep fusion pole of the box body. The box is internally provided with a fixed plate, the deep fusion pole is arranged on the fixed plate, the deep fusion pole is internally provided with an arc extinguishing chamber, the arc extinguishing chamber is externally provided with an outgoing line seat, the deep fusion pole is externally provided with a first conductive rod and a second conductive rod, one end of the first conductive rod is provided with a flexible connection below the arc extinguishing chamber, the fixed plate is provided with a slidingly connected insulating pull rod below the flexible connection, and the circuit breaker operating mechanism is used for driving the insulating pull rod to move up and down. The box is internally provided with a rotatingly connected isolation main shaft, the deep fusion pole is rotatably connected with the isolation main shaft, the isolation main shaft is externally provided with an isolation blade assembly on one side of the deep fusion pole, the isolation blade assembly is used for connecting the outgoing line seat and the second conductive rod, and the isolation operating mechanism is used for driving the isolation main shaft to rotate. The first conductive rod and the second conductive rod are connected with the sleeve assembly through connectors respectively.

[0006] Further, the circuit breaker operating mechanism comprises a fixed seat arranged on the fixed plate, an internally rotatingly connected circuit breaker main shaft is arranged on one side of the fixed seat, the fixed seat is rotatably connected with the circuit breaker main shaft, one end of the insulating pull rod away from the flexible connection is provided with a moving block, the circuit breaker main shaft is externally provided with a first crank on one side of the moving block, the first crank is slidingly connected with the moving block, and when the circuit breaker main shaft drives the first crank to swing, the first crank is used for driving the moving block to move up and down.

[0007] Further, the circuit breaker operating mechanism further comprises a first plate and a second plate, the first plate is arranged on the side wall of the box, a plurality of auxiliary fixed shafts are arranged between the first plate and the second plate, a first fixed shaft is rotatably connected between the first plate and the second plate, one end of the first fixed shaft extends to the outside of the second plate and is connected with one end of a first spring through a spring hanging block; A third crank rotatably connected between the first plate and the second plate is arranged, a second spring movably connected on the third crank is arranged, one end of the second spring away from the third crank is provided with a guide plate, the guide plate is fixedly connected with the first fixed shaft, one end of the circuit breaker main shaft extends to the outside of the box and is provided with a first push block, the first push block is rotatably connected with a second push block, the second push block is rotatably connected with a third push block, the third push block is fixedly connected with the third crank, and the third push block and the third crank are coaxially arranged; A main shaft is rotationally connected between the first plate and the second plate, a clutch wheel and a cam are coaxially sleeved on the outer wall of the main shaft, one end of the main shaft extends to the outside of the second plate and is sleeved with a second toggle lever, the other end of the first spring is rotationally connected with the second toggle lever through a spring hanging plate, when the main shaft drives the cam to rotate, the cam is used for pushing the third toggle lever to rotate, a rotating roller is rotationally connected on the outer wall of the cam on one side of the third toggle lever; A power mechanism is arranged between the first plate and the second plate for driving the main shaft to rotate.

[0008] Further, the power mechanism comprises a first gear rotationally arranged between the first plate and the second plate, one end of the first gear extends to the outside of the second plate and is provided with an energy storage shaft, a second gear is rotationally connected on the outer wall of the clutch wheel on one side of the clutch wheel, the first gear is engaged with the second gear, a through slot is formed in the clutch wheel, and a clutch block is arranged on the outer wall of the second gear on one side of the through slot; A limiting column is arranged on one side of the outer wall of the clutch wheel, a first adjusting shaft and a first catch are rotationally connected between the first plate and the second plate, one end of the first catch is located on one side of the limiting column, and the other end of the first catch is located on one side of the first adjusting shaft, a first groove for passing through the first catch is formed in the first adjusting shaft; A second catch is rotationally connected on the outer wall of the first plate on one side of the third toggle lever, the second catch is elastically connected with the first plate through a return spring, a stand and a second adjusting shaft are arranged on the outer wall of the first plate on both sides of the second catch, the second adjusting shaft is rotationally connected with the first plate, a second groove for passing through the second catch is formed in the second adjusting shaft, a third catch is rotationally connected on the outer wall of the second catch on one side of the third toggle lever, the third catch is elastically connected with the second catch through a first return spring, and the third catch is used for blocking the third toggle lever.

[0009] Further, the auxiliary fixing shaft comprises a first shaft and a second shaft, a fourth catch is rotationally connected on the outer wall of the first shaft, the fourth catch is elastically connected with the first shaft through a second return spring, and the fourth catch is used for blocking the first gear; An inclined first slope is arranged on one end of the first catch close to the limiting column, and an inclined second slope is arranged on one end of the third catch close to the third toggle lever.

[0010] Further, the number of the deep-penetrating pole columns is three, and the three deep-penetrating pole columns are arranged side by side on the fixing plate; The box is provided with a navigation plug, coils are arranged in the deep-penetrating pole and the sleeve assembly, and the navigation plug is used for leading-out wires passing through the coils. The isolation main shaft is provided with a plurality of limiting sleeves outside the outer wall, and the plurality of limiting sleeves are used for limiting the plurality of isolation blade assemblies.

[0011] Further, the circuit breaker main shaft is rotatably connected to the box through a first sealing bearing, and the isolation main shaft is rotatably connected to the box through a second sealing bearing.

[0012] Further, the isolation blade assembly comprises two isolation blades, a plurality of pins are slidably connected between the two isolation blades, shielding caps are arranged at both ends of the pins, the two shielding caps are located outside the two isolation blades respectively, compression springs are arranged between the shielding caps and the adjacent isolation blades, the compression springs are arranged outside the pins, and a clamping plate is arranged between the two isolation blades.

[0013] Further, the isolation operating mechanism comprises two third plates, one of the third plates is arranged outside the box, a mounting shaft and a plurality of auxiliary shafts are arranged between the two third plates, a rotatably connected sliding slot crank is arranged between the two third plates, the isolation main shaft is fixedly connected to the sliding slot crank, an operating crank is rotatably connected to one side of the outer wall of the sliding slot crank, the operating crank is coaxially arranged with the sliding slot crank, a first rod rotatably connected to the outer wall of the mounting shaft is arranged, a second rod slidably connected to one side of the first rod away from the mounting shaft is arranged, an arc-shaped slot is arranged on the sliding slot crank, one end of the second rod is slidably connected to the arc-shaped slot, and the same third reset spring is arranged outside the first rod and the second rod.

[0014] Further, limiting blocks are arranged on both sides of the sliding slot crank outside the third plate, and the limiting blocks are used for blocking the sliding slot crank.

[0015] Compared with the prior art, the outdoor isolation-in built environment-friendly circuit breaker has the following beneficial effects: The outdoor isolation-in built environment-friendly circuit breaker has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 7 is a perspective view of an outdoor built-in environmentally friendly circuit breaker according to an embodiment of the present application; Figure 2 Fig. 8 is a perspective view of a deep pole and sleeve assembly according to an embodiment of the present application; Figure 3 Fig. 9 is a perspective view of a deep pole according to an embodiment of the present application; Figure 4 Fig. 10 is a perspective view of an arc extinguishing chamber according to an embodiment of the present application; Figure 5 Fig. 11 is a perspective view of a deep pole from another angle according to an embodiment of the present application; Figure 6 Fig. 12 is a front view of an arc extinguishing chamber according to an embodiment of the present application; Figure 7 Fig. 13 is a perspective view of an isolation blade assembly according to an embodiment of the present application; Figure 8 Fig. 14 is a perspective view of an isolation operating mechanism according to an embodiment of the present application; Figure 9 Fig. 15 is a perspective view of a third plate according to an embodiment of the present application; Figure 10 Fig. 16 is a perspective view of a third plate from another working state according to an embodiment of the present application; Figure 11 Fig. 17 is a perspective view of a circuit breaker operating mechanism according to an embodiment of the present application; Figure 12 Fig. 18 is a perspective view of a second plate according to an embodiment of the present application; Figure 13 Fig. 19 is a perspective view of a sliding slot crank according to an embodiment of the present application; Figure 14 Fig. 20 is a perspective view of a first crank according to an embodiment of the present application.

[0017] In the figure: 1, box; 2, limiting column; 3, breaker operating mechanism; 4, isolation operating mechanism; 7, sleeve assembly; 70, first sleeve assembly; 71, second sleeve assembly; 72, third sleeve assembly; 8, plug; 11, first sealing bearing; 12, second sealing bearing; 13, fixed plate; 20, deep fusion pole; 21, arc extinguishing chamber; 210, shielding cap; 211, compression spring; 212, isolation blade; 213, pin; 22, outgoing line seat; 23, isolation blade assembly; 24, first conductive rod; 25, second conductive rod; 26, insulating pull rod; 27, flexible connection; 28, connector; 29, clamping plate; 30, first fixed shaft; 31, first plate; 310, energy storage shaft; 311, main shaft; 312, second crank arm; 313, spring hanging plate; 314, first spring; 315, spring hanging block; 316, second plate; 317, guide plate; 318, clutch block; 319, first pawl; 32, second spring; 320, third pawl; 321, second adjusting shaft; 322, second pawl; 323, clutch wheel; 324, first adjusting shaft; 325, cam; 33, third crank arm; 34, roller; 35, second gear; 36, first shaft; 37, fourth pawl; 38, first gear; 39, second shaft; 40, third plate; 41, auxiliary shaft; 42, third return spring; 43, first rod; 44, second rod; 45, sliding slot crank arm; 46, limiting block; 47, operating crank arm; 48, mounting shaft; 50, moving block; 51, first crank arm; 52, fixed seat; 53, first push block; 54, second push block; 55, third push block; 56, breaker main shaft; 60, isolation main shaft; 61, bearing; 62, limiting sleeve. DETAILED DESCRIPTION

[0018] The application will be further described below in conjunction with the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0019] In the description of the present application, it is to be understood by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0020] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] As shown in Figures 1-6 The present application provides an outdoor built-in isolation environmentally friendly circuit breaker, comprising a box body 1, a deep melting pole 20 is arranged in the box body 1, a circuit breaker operating mechanism 3 and an isolation operating mechanism 4 are arranged on the box body 1, a sleeve assembly 7 is arranged on one side of the deep melting pole 20 on the box body 1; a fixed plate 13 is arranged in the box body 1, the deep melting pole 20 is arranged on the fixed plate 13, an arc-extinguishing chamber 21 is arranged in the deep melting pole 20, an outgoing line seat 22 is arranged on the arc-extinguishing chamber 21, a first conductive rod 24 and a second conductive rod 25 are arranged on the deep melting pole 20, a soft connection 27 is arranged at one end of the first conductive rod 24 below the arc-extinguishing chamber 21, an insulating pull rod 26 is arranged in sliding connection below the soft connection 27 on the fixed plate 13, the circuit breaker operating mechanism 3 is used to push the insulating pull rod 26 to move up and down; an isolation main shaft 60 is arranged in rotating connection in the box body 1, the deep melting pole 20 is in rotating connection with the isolation main shaft 60, an isolation blade assembly 23 is sleeved on one side of the deep melting pole 20 on the outer wall of the isolation main shaft 60, the isolation blade assembly 23 is used to connect the outgoing line seat 22 and the second conductive rod 25, the isolation operating mechanism 4 is used to drive the isolation main shaft 60 to rotate; the first conductive rod 24 and the second conductive rod 25 are connected with the sleeve assembly 7 through connectors 28 respectively.

[0022] Specifically, in operation, when the opening or closing operation is required, the circuit breaker operating mechanism 3 can be controlled to start working, and the circuit breaker operating mechanism 3 can push the insulating pull rod 26 to move up and down. When the circuit breaker operating mechanism 3 pushes the insulating pull rod 26 to move upward, the top of the insulating pull rod 26 pushes the soft connection 27 to contact the arc extinguishing chamber 21, so that the first conductive rod 24 is connected with the arc extinguishing chamber 21 and the outlet seat 22, thereby completing the closing operation. When the circuit breaker operating mechanism 3 pushes the insulating pull rod 26 to move downward, the insulating pull rod 26 no longer pushes the soft connection 27 upward, and at this time the soft connection 27 can restore to the original position, disconnecting the first conductive rod 24 from the arc extinguishing chamber 21, thereby completing the opening operation. The isolation operating mechanism 4 can be controlled to drive the isolation blade assembly 23 to rotate, thereby controlling the connection or disconnection of the second conductive rod 25 with the outlet seat 22, thereby completing the isolation operation. Optionally, the soft connection 27 is elastic. Optionally, the sleeve assembly 7 includes a first sleeve assembly 70, a second sleeve assembly 71 and a third sleeve assembly 72.

[0023] The deep fusion pole 20 has a compact design of the arc extinguishing chamber 21 and the outlet seat 22, and is provided with the isolation blade assembly 23, so that the circuit breaker and the disconnector are close in space, the number of connected conductive parts is small and the rotational inertia is small, the opening and closing time is shortened, the stability and reliability of the operation are improved, the components are highly integrated, the physical isolation of the line can be realized without installing an independent disconnector, the safety is enhanced, the work load of on-site installation and debugging is greatly reduced, the installation process is simple, the occupied space is small, and the actual use effect of the switch device is ensured. The isolation blade assembly 23 in the deep fusion pole 20 can form a clear isolation breaking point, reducing the operation and maintenance risk.

[0024] As shown in Figure 1 An embodiment, the number of the deep fusion poles 20 is three, and the three deep fusion poles 20 are arranged side by side on the fixed plate 13. The box body 1 is provided with a navigation plug 8, and coils are arranged in the deep fusion poles 20 and the sleeve assembly 7. The navigation plug 8 is used for the lead-out wire of the coil. A plurality of limiting sleeves 62 are arranged on the outer wall of the isolation main shaft 60, and the plurality of limiting sleeves 62 are used for limiting the plurality of isolation blade assemblies 23. The circuit breaker main shaft 56 is rotatably connected with the box body 1 through the first sealing bearing 12, the isolation main shaft 60 is rotatably connected with the box body 1 through the second sealing bearing 11, and the box body 1 is a sealed structure.

[0025] Specifically, the three deep fusion pole columns 20 are arranged to realize physical isolation between phases and avoid the generation of inter-phase faults. Optionally, the box body 1 is a welded sealing mechanism, each deep fusion pole column 20 internally fuses a coil for measuring the passing current, the sleeve assembly 7 internally fuses a coil for measuring the passing voltage, and the lead-out wire of the coil is led out through the jack 8 fixed on the box body 1. The isolation blade assembly 23 is equidistantly connected in parallel by the isolation main shaft 60 limited by the limiting sleeve 62, and optionally, a bearing 61 is arranged between the limiting sleeve 62 and the isolation blade assembly 23. The circuit breaker operating mechanism 3 and the isolation operating mechanism 4 are independently designed in the application, the number of parts is small, the structure is compact and light, the installation is convenient, and the function is clear. The three-phase deep fusion pole column 20 realizes physical isolation between phases and reduces the risk of inter-phase short-circuit fault. The low-power consumption coils internally fused in the deep fusion pole column 20 and the sleeve assembly 7 can monitor the values and quality of the current and voltage in real time, provide real-time data for intelligent control of the power grid, the box body 1 adopts a fully sealed structure, realizes normal pressure and environmental protection design inside, can meet the harsh environment of high altitude, high pollution, high condensation and the like, and completely avoids the use of high-pressure gas.

[0026] As shown in Figure 11 , Figure 12 and Figure 14 , in one embodiment, the circuit breaker operating mechanism 3 includes a fixed seat 52 arranged on the fixed plate 13, the inner wall of the box body 1 is provided with a rotatingly connected circuit breaker main shaft 56 on one side of the fixed seat 52, the fixed seat 52 is rotatably connected with the circuit breaker main shaft 56, the distal end of the insulating pull rod 26 away from the flexible connection 27 is provided with a moving block 50, the circuit breaker main shaft 56 is sleeved with a first crank arm 51 on one side of the moving block 50, the first crank arm 51 is slidably connected with the moving block 50, and when the circuit breaker main shaft 56 drives the first crank arm 51 to swing, the first crank arm 51 is used to push the moving block 50 to move up and down.

[0027] Specifically, when opening or closing work is needed during work, the circuit breaker main shaft 56 is driven to reciprocate, the fixed seat 52 is used to support the circuit breaker main shaft 56, the first crank arm 51 reciprocates with the circuit breaker main shaft 56, and when the first crank arm 51 swings, the moving block 50 is driven to move up and down, so as to push the flexible connection 27 to contact or disconnect the arc-extinguishing chamber 21, and realize the opening or closing work. Optionally, two fixed seats 52 are arranged below each deep fusion pole column 20. Optionally, the two sides of the moving block 50 are symmetrically provided with protrusions, the first crank arm 51 is provided with an irregular groove, and the irregular groove is slidably connected with the protrusions.

[0028] The circuit breaker operating mechanism 3 further comprises a first plate 31 and a second plate 316, the first plate 31 is arranged on the side wall of the box 1, a plurality of auxiliary fixing shafts are arranged between the first plate 31 and the second plate 316, a first fixing shaft 30 is rotatably connected between the first plate 31 and the second plate 316, one end of the first fixing shaft 30 extends to the outside of the second plate 316 and is connected with one end of the first spring 314 through a spring hanging block 315; A third crank arm 33 is rotatably connected between the first plate 31 and the second plate 316, a second spring 32 is movably connected on the third crank arm 33, a guide plate 317 is arranged on the end of the second spring 32 away from the third crank arm 33, the guide plate 317 is fixedly connected with the first fixing shaft 30, one end of the circuit breaker main shaft 56 extends to the outside of the box 1 and is provided with a first push block 53, the first push block 53 is rotatably connected with a second push block 54, the second push block 54 is rotatably connected with a third push block 55, the third push block 55 is fixedly connected with the third crank arm 33, and the third push block 55 is coaxially arranged with the third crank arm 33; A main shaft 311 is rotatably connected between the first plate 31 and the second plate 316, a clutch wheel 323 and a cam 325 are coaxially arranged on the outer wall of the main shaft 311, one end of the main shaft 311 extends to the outside of the second plate 316 and is sleeved with a second crank arm 312, the other end of the first spring 314 is rotatably connected with the second crank arm 312 through a spring hanging plate 313, when the main shaft 311 drives the cam 325 to rotate, the cam 325 is used for driving the third crank arm 33 to rotate, and a roller 34 is rotatably connected on the outer wall of the cam 325 on one side of the cam 325; optionally, the cam 325 and the roller 34 are consistent in thickness direction; A power mechanism for driving the main shaft 311 to rotate is arranged between the first plate 31 and the second plate 316; The power mechanism comprises a first gear 38 rotatably arranged between the first plate 31 and the second plate 316, one end of the first gear 38 extends to the outside of the second plate 316 and is provided with an energy storage shaft 310, a second gear 35 is rotatably connected on the outer wall of the clutch wheel 323 on one side of the clutch wheel 323, the first gear 38 is engaged with the second gear 35, a through slot is arranged on the clutch wheel 323, and a clutch block 318 is arranged on the outer wall of the second gear 35 on one side of the through slot; The outer wall of the clutch wheel 323 is provided with a limiting column 2, the first plate 31 and the second plate 316 are provided with a rotatingly connected first adjusting shaft 324 and a first latch 319, one end of the first latch 319 is located on one side of the limiting column 2, the other end of the first latch 319 is located on one side of the first adjusting shaft 324, and the first adjusting shaft 324 is provided with a first groove for penetrating the first latch 319; The outer wall of the first plate 31 is provided with a rotatingly connected second latch 322 on one side of the third crank arm 33, the second latch 322 is elastically connected with the first plate 31 through a reset spring, the outer wall of the first plate 31 is provided with a stand and a second adjusting shaft 321 on both sides of the second latch 322, the second adjusting shaft 321 is rotatingly connected with the first plate 31, the second adjusting shaft 321 is provided with a second groove for penetrating the second latch 322, the outer wall of the second latch 322 is provided with a rotatingly connected third latch 320 on one side of the third crank arm 33, the third latch 320 is elastically connected with the second latch 322 through a first reset spring, and the third latch 320 is used for blocking the third crank arm 33; The auxiliary fixing shaft includes a first shaft 36 and a second shaft 39, the outer wall of the first shaft 36 is provided with a rotatingly connected fourth latch 37, the fourth latch 37 is elastically connected with the first shaft 36 through a second reset spring not shown in the figure, and the fourth latch 37 is used for blocking the first gear 38; the second reset spring cooperates with the fourth latch 37 to block the first gear 38, so that the first gear 38 can only rotate in one direction, and the stability of work is ensured; The first latch 319 is provided with a first inclined surface at one end close to the limiting column 2, and the third latch 320 is provided with a second inclined surface at one end close to the third crank arm 33.

[0029] Specifically, the first spring 314 is in a normal state at the initial state, the second crank arm 312 is closest to the first fixed shaft 30, and the first plate 31 is connected to the outer wall of the box 1 through a plurality of connecting rods; first, the energy storage shaft 310 is connected to the external output mechanism, or the energy storage shaft 310 is driven by artificial to rotate, when the energy storage shaft 310 rotates, the first gear 38 is driven to rotate, the second gear 35 is driven to rotate by the first gear 38, the main shaft 311 supports the second gear 35, when the second gear 35 moves, the second gear 35 drives the clutch block 318 to move, the clutch block 318 is located in the through slot, thereby driving the clutch wheel 323 to rotate, so that the second gear 35 can drive the clutch wheel 323 to rotate synchronously, at this time the main shaft 311 rotates with the clutch wheel 323, the cam 325 and the second crank arm 312 rotate with the main shaft 311, when the second crank arm 312 rotates, the first spring 314 between the spring hanging block 315 and the spring hanging plate 313 is elongated, the limiting column 2 moves with the clutch wheel 323, with the rotation of the clutch wheel 323, when the limiting column 2 moves to one side of the first latch 319, the first latch 319 blocks the limiting column 2, so that the main shaft 311 stops rotating, at this time the limiting column 2 contacts the first inclined surface, and can drive the first latch 319 to rotate, due to the block of the first adjusting shaft 324, the position of the first latch 319 remains unchanged, at this time the device completes the energy storage preparation work, the first spring 314 is in the elongated energy storage state, to avoid the first spring 314 driving the main shaft 311 to return to the original route, the rotation angle of the first main shaft 311 is slightly larger than 180°; When the closing work is needed, the first adjusting shaft 324 can be rotated by external force at this time, so as to drive the first groove to rotate, when the first groove rotates to one side of the first latch 319, the first latch 319 can pass through the first adjusting shaft 324 through the first groove, at this time the first adjusting shaft 324 no longer blocks the first latch 319, the limiting column 2 can push the first latch 319 to rotate, the first latch 319 no longer blocks the limiting column 2, at this time the elastic force of the first spring 314 can drive the main shaft 311 to continue to rotate through the second crank arm 312, the main shaft 311 drives the clutch wheel 323 and the cam 325 to continue to rotate, until the first spring 314 drives the second crank arm 312 and the main shaft 311 to restore to the original position, at this time the main shaft 311 rotates a whole process, when the cam 325 moves to one side of the roller 34, it can push the third crank arm 33 to rotate, so that the second spring 32 is in a compressed energy storage state, when the third crank arm 33 moves to one side of the third latch 320, the third crank arm 33 first pushes the third latch 320 to rotate, so that the first return spring (not shown in the figure) is compressed, after the third crank arm 33 passes through the third latch 320, the first return spring pushes the third latch 320 to restore to the original position, at this time the third latch 320 limits the third crank arm 33, because the third crank arm 33 is in contact with the second inclined surface, it can push the second latch 322 to rotate, because the second adjusting shaft 321 blocks, the positions of the second latch 322 and the third latch 320 remain unchanged, the positioning work of the third crank arm 33 is completed, when the third crank arm 33 rotates, it can drive the third push block 55 to rotate, the third push block 55 drives the first push block 53 to rotate through the second push block 54, so as to drive the circuit breaker main shaft 56 to rotate, and the closing work is realized. When the opening work is needed, the second spring 32 is in a compressed state, used for pushing the third crank arm 33 to rotate, the second latch 322 and the third latch 320 block the third crank arm 33; at this time the second adjusting shaft 321 can be rotated by external force, so as to drive the second groove to rotate, when the second groove moves to one side of the second latch 322, at this time the second latch 322 can rotate through the second groove, the second adjusting shaft 321 no longer blocks the second latch 322, at this time the compressed second spring 32 starts to push the third crank arm 33 to rotate, because the second adjusting shaft 321 does not block the second latch 322 at this time, the third crank arm 33 cooperates with the second inclined surface, it can push the second latch 322 to rotate through the third latch 320, after the third crank arm 33 passes through the third latch 320, the return spring can drive the second latch 322 to restore to the original position, when the third crank arm 33 rotates, it can drive the third push block 55 to rotate, the third push block 55 drives the first push block 53 to rotate through the second push block 54, so as to drive the circuit breaker main shaft 56 to rotate, and the opening work is realized.

[0030] AsFigure 7 As shown in FIG. 1, one embodiment of the isolation blade assembly 23 includes two isolation blades 212, a plurality of pins 213 slidingly connected between the two isolation blades 212, shielding caps 210 provided at both ends of the pins 213, the shielding caps 210 located outside the two isolation blades 212, compression springs 211 provided between the shielding caps 210 and the adjacent isolation blades 212, the compression springs 211 sleeved outside the pins 213, and a clamping plate 29 provided between the two isolation blades 212.

[0031] Specifically, the compression springs 211 on one side of the shielding caps 210 push the two isolation blades 212 to move closer to each other, and the clamping plate 29 is placed between the two isolation blades 212, thereby completing the positioning of each isolation blade 212, ensuring the stability of the structure of the isolation blade assembly 23, facilitating the disassembly and maintenance of the isolation blade assembly 23, and ensuring the practicality of the isolation blade assembly 23.

[0032] As shown in FIG. 1, one embodiment of the isolation blade assembly 23 includes two isolation blades 212, a plurality of pins 213 slidingly connected between the two isolation blades 212, shielding caps 210 provided at both ends of the pins 213, the shielding caps 210 located outside the two isolation blades 212, compression springs 211 provided between the shielding caps 210 and the adjacent isolation blades 212, the compression springs 211 sleeved outside the pins 213, and a clamping plate 29 provided between the two isolation blades 212. Figures 8-10 As shown in FIG. 1, one embodiment of the isolation blade assembly 23 includes two isolation blades 212, a plurality of pins 213 slidingly connected between the two isolation blades 212, shielding caps 210 provided at both ends of the pins 213, the shielding caps 210 located outside the two isolation blades 212, compression springs 211 provided between the shielding caps 210 and the adjacent isolation blades 212, the compression springs 211 sleeved outside the pins 213, and a clamping plate 29 provided between the two isolation blades 212. Figure 13 As shown in FIG. 1, one embodiment of the isolation blade assembly 23 includes two isolation blades 212, a plurality of pins 213 slidingly connected between the two isolation blades 212, shielding caps 210 provided at both ends of the pins 213, the shielding caps 210 located outside the two isolation blades 212, compression springs 211 provided between the shielding caps 210 and the adjacent isolation blades 212, the compression springs 211 sleeved outside the pins 213, and a clamping plate 29 provided between the two isolation blades 212. As shown in FIG. 1, one embodiment of the isolation blade assembly 23 includes two isolation blades 212, a plurality of pins 213 slidingly connected between the two isolation blades 212, shielding caps 210 provided at both ends of the pins 213, the shielding caps 210 located outside the two isolation blades 212, compression springs 211 provided between the shielding caps 210 and the adjacent isolation blades 212, the compression springs 211 sleeved outside the pins 213, and a clamping plate 29 provided between the two isolation blades 212.

[0033] Specifically, when the adjustment work of the isolating switch needs to be performed, the operation crank 47 can be driven to rotate, the operation crank 47 can drive one end of the second rod 44 to slide in the arc-shaped slot in the sliding slot crank 45, the first rod 43 and the third return spring 42 move with the second rod 44, the third return spring 42 is compressed, and when the one end of the second rod 44 moves to the other side of the arc-shaped slot, the third return spring 42 can push the one end of the second rod 44 to move in the arc-shaped slot, so that the one end of the second rod 44 moves to the port of the arc-shaped slot, thereby further driving the sliding slot crank 45 to rotate, the sliding slot crank 45 drives the isolating main shaft 60 to rotate, and the adjustment work of the isolating switch is completed; when the isolation work needs to be cancelled, the operation crank 47 can be reversely rotated to reversely push the one end of the second rod 44 to move; the two limiting blocks 46 are used to block the sliding slot crank 45, thereby limiting the rotation angle of the sliding slot crank 45 and the isolating main shaft 60, and the stability of the isolating blade assembly 23 during movement is ensured.

[0034] Wherein, when the shaft center of the operation crank 47 is a plane angle, the third return spring 42 stores the maximum energy, and when the operation crank 47 continues to rotate, the third return spring 42 quickly releases the energy to quickly push the sliding slot crank 45 to rotate clockwise until the sliding slot crank 45 contacts the limiting block 46 to stop, the closing operation of the isolating switch is completed, and the isolation operation of the isolating switch is completed in the reverse direction.

[0035] The box body 1 of the application is a welded structure, which can ensure the isolation of the conventional pressure air in the circuit breaker and the external air, the arrangement of the deep-fusion pole 20 can ensure that the short-circuit fault does not spread to the minimum limit and the electrical insulation is excellent, the built-in isolating switch and the internally sealed coil, i.e. the voltage sensor and the current sensor, can greatly reduce the workload of the on-site construction.

[0036] The above is only the preferred embodiment of the application, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the technical principles of the application, and these improvements and modifications should be regarded as the protection scope of the application.

Claims

1. An outdoor, environmentally friendly circuit breaker with a built-in switch, characterized in that, Includes a housing (1), inside which is a deep melting pole (20), on which is a circuit breaker operating mechanism (3) and an isolation operating mechanism (4), and on which is a bushing assembly (7) on one side of the deep melting pole (20). The housing (1) is provided with a fixing plate (13), the deep melting pole (20) is set on the fixing plate (13), the deep melting pole (20) is provided with an arc-extinguishing chamber (21), the arc-extinguishing chamber (21) is provided with a wire outlet (22), the deep melting pole (20) is provided with a first conductive rod (24) and a second conductive rod (25), one end of the first conductive rod (24) is provided with a flexible connection (27) below the arc-extinguishing chamber (21), the fixing plate (13) is provided with a slidingly connected insulating pull rod (26) below the flexible connection (27), and the circuit breaker operating mechanism (3) is used to push the insulating pull rod (26) to move up and down; The housing (1) is provided with a rotatingly connected isolation spindle (60), the deep melting pole (20) is rotatably connected to the isolation spindle (60), the outer wall of the isolation spindle (60) is fitted with an isolation blade assembly (23) on one side of the deep melting pole (20), the isolation blade assembly (23) is used to connect the outlet seat (22) and the second conductive rod (25), and the isolation operating mechanism (4) is used to drive the isolation spindle (60) to rotate; The first conductive rod (24) and the second conductive rod (25) are respectively connected to the sleeve assembly (7) via connector (28).

2. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 1, characterized in that, The circuit breaker operating mechanism (3) includes a fixed seat (52) disposed on the fixed plate (13). The inner wall of the housing (1) is provided with a circuit breaker main shaft (56) rotatably connected to the fixed seat (52). The fixed seat (52) is rotatably connected to the circuit breaker main shaft (56). The insulating pull rod (26) is provided with a moving block (50) at one end away from the flexible connection (27). The circuit breaker main shaft (56) is fitted with a first crank arm (51) on one side of the moving block (50). The first crank arm (51) is slidably connected to the moving block (50). When the circuit breaker main shaft (56) drives the first crank arm (51) to swing, the first crank arm (51) is used to push the moving block (50) to move up and down.

3. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 2, characterized in that, The circuit breaker operating mechanism (3) further includes a first plate (31) and a second plate (316). The first plate (31) is disposed on the side wall of the housing (1). The first plate (31) and the second plate (316) are connected by a plurality of auxiliary fixed shafts. A first fixed shaft (30) is rotatably connected between the first plate (31) and the second plate (316). One end of the first fixed shaft (30) extends to the outside of the second plate (316) and is connected to one end of the first spring (314) through a spring hanger (315). A third crank arm (33) is rotatably connected between the first plate (31) and the second plate (316). A second spring (32) is movably connected on the third crank arm (33). A guide plate (317) is provided at the end of the second spring (32) away from the third crank arm (33). The guide plate (317) is fixedly connected to the first fixed shaft (30). One end of the circuit breaker main shaft (56) extends to the outside of the housing (1) and is provided with a first push block (53). A second push block (54) is rotatably connected on the first push block (53). A third push block (55) is rotatably connected on the second push block (54). The third push block (55) is fixedly connected to the third crank arm (33). The third push block (55) and the third crank arm (33) are coaxially arranged. A main shaft (311) is rotatably connected between the first plate (31) and the second plate (316). A clutch wheel (323) and a cam (325) are coaxially sleeved on the outer wall of the main shaft (311). One end of the main shaft (311) extends to the outside of the second plate (316) and is sleeved with a second crank arm (312). The other end of the first spring (314) is rotatably connected to the second crank arm (312) through a spring hanger (313). When the main shaft (311) drives the cam (325) to rotate, the cam (325) is used to push the third crank arm (33) to rotate. A roller (34) is rotatably connected to the outer wall of the third crank arm (33) on one side of the cam (325). A power mechanism for driving the main shaft (311) to rotate is provided between the first plate (31) and the second plate (316).

4. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 3, characterized in that, The power mechanism includes a first gear (38) rotatably disposed between the first plate (31) and the second plate (316). One end of the first gear (38) extends to the outside of the second plate (316) and is provided with an energy storage shaft (310). The outer wall of the main shaft (311) is fitted with a second gear (35) rotatably connected to the clutch wheel (323). The first gear (38) meshes with the second gear (35). A through groove is provided on the clutch wheel (323). A clutch block (318) is provided on the outer wall of the second gear (35) on one side of the through groove. A limiting post (2) is provided on one side of the outer wall of the clutch wheel (323). A first adjusting shaft (324) and a first stop (319) are rotatably connected between the first plate (31) and the second plate (316). One end of the first stop (319) is located on one side of the limiting post (2), and the other end of the first stop (319) is located on one side of the first adjusting shaft (324). A first groove is provided on the first adjusting shaft (324) for the first stop (319) to pass through. The outer wall of the first plate (31) is provided with a second stop (322) rotatably connected to the third crank arm (33) on one side. The second stop (322) is elastically connected to the first plate (31) through a return spring. The outer wall of the first plate (31) is provided with a column and a second adjusting shaft (321) on both sides of the second stop (322). The second adjusting shaft (321) is rotatably connected to the first plate (31). The second adjusting shaft (321) is provided with a second groove for passing through the second stop (322). The outer wall of the second stop (322) is provided with a third stop (320) rotatably connected to the third crank arm (33) on one side. The third stop (320) is elastically connected to the second stop (322) through a first return spring. The third stop (320) is used to block the third crank arm (33).

5. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 4, characterized in that, The auxiliary fixed shaft includes a first shaft (36) and a second shaft (39). The outer wall of the first shaft (36) is fitted with a fourth stop (37) that is rotatably connected. The fourth stop (37) is elastically connected to the first shaft (36) through a second return spring. The fourth stop (37) is used to block the first gear (38). The first stop (319) has a first inclined surface at one end near the limiting post (2), and the third stop (320) has a second inclined surface at one end near the third crank arm (33).

6. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 1, characterized in that, The number of deep melting poles (20) is three, and the three deep melting poles (20) are arranged side by side on the fixing plate (13); The housing (1) is provided with a flight plug (8), and both the deep melting pole (20) and the sleeve assembly (7) are provided with coils. The flight plug (8) is used to pass through the lead wire of the coil. The outer wall of the isolation spindle (60) is fitted with a plurality of limiting sleeves (62), which are used to limit the plurality of isolation blade assemblies (23).

7. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 1, characterized in that, The circuit breaker main shaft (56) is rotatably connected to the housing (1) via a first sealed bearing (12), and the isolation main shaft (60) is rotatably connected to the housing (1) via a second sealed bearing (11). The housing (1) is a sealed structure.

8. The outdoor barrier-type built-in environmentally friendly circuit breaker according to claim 1, characterized in that, The isolation blade assembly (23) includes two isolation blades (212), and a plurality of pins (213) are slidably connected between the two isolation blades (212). Each end of the pin (213) is provided with a shielding cap (210). The two shielding caps (210) are respectively located on the outside of the two isolation blades (212). A compression spring (211) is provided between the shielding cap (210) and the adjacent isolation blade (212). The compression spring (211) is sleeved on the outside of the pin (213). A clamping plate (29) is provided between the two isolation blades (212).

9. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 1, characterized in that, The isolation operating mechanism (4) includes two third plates (40), one of which is located on the outside of the housing (1). A mounting shaft (48) and multiple auxiliary shafts (41) are provided between the two third plates (40). A rotatably connected sliding crank arm (45) is provided between the two third plates (40). The isolation main shaft (60) is fixedly connected to the sliding crank arm (45). An operating crank arm (47) is rotatably connected to one side of the outer wall of the sliding crank arm (45). The operating crank arm (47) is coaxially arranged with the sliding crank arm (45). A rotatably connected first rod (43) is sleeved on the outer wall of the mounting shaft (48). A slidably connected second rod (44) is provided on the side of the first rod (43) away from the mounting shaft (48). An arc groove is provided on the sliding crank arm (45). One end of the second rod (44) is slidably connected to the arc groove. The same third return spring (42) is sleeved on the outer walls of the first rod (43) and the second rod (44).

10. The outdoor barrier-type environmentally friendly circuit breaker with built-in switch as described in claim 9, characterized in that, One of the third plates (40) has a limiting block (46) on both sides of the slide crank arm (45) on its outer wall. The limiting block (46) is used to block the slide crank arm (45).

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