Isolation switch

Abstract

The invention relates to the technical field of electrical equipment, in particular to an isolating switch which comprises an isolating switch body and an electric operating mechanism, the isolating switch body comprises a support and a first rotating shaft used for driving the isolating switch body to be switched on and switched off, and the first rotating shaft rotationally penetrates through the two opposite sides of the support; the electric operating mechanism comprises a shell and an electric driving module, the shell is installed on one side of the support, the electric driving module is installed in the shell and comprises a driving part and a transmission shaft, the first end of the transmission shaft is connected with the output end of the driving part, and the second end of the transmission shaft rotationally penetrates through the shell in a sealed mode and is detachably connected with the corresponding first rotating shaft; the driving part drives the transmission shaft to rotate to drive the first rotating shaft to rotate. According to the isolating switch, the integrated electric operating mechanism is used, so that remote control can be realized, the electric operating mechanism is convenient to disassemble and assemble, and the isolating switch can be used outdoors.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an isolating switch. Background Art

[0002] Circuit breakers and disconnectors play an electrical isolation role in the national power grid system and are essential equipment in the power industry. Pole-mounted circuit breakers are generally used together with disconnectors and installed as an integrated unit, mainly used in outdoor power systems.

[0003] At present, the isolating switches matched with the circuit breakers outdoors generally cannot be remotely controlled and need to be operated manually, which is cumbersome and timeliness is poor. In addition, the operating mechanism of the isolating switch has a complex structure and is distributedly installed on one side of the isolating switch, which makes it difficult to disassemble and assemble the operating mechanism. Summary of the invention

[0004] The present invention provides an isolating switch which uses an integrated electric operating mechanism, can realize remote control, is convenient for disassembly and assembly of the electric operating mechanism, and can be used outdoors.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] Disconnector, including:

[0007] The isolating switch body comprises a bracket and a first rotating shaft for driving the isolating switch body to open and close, wherein the first rotating shaft is rotatably arranged on two opposite sides of the bracket;

[0008] The electric operating mechanism includes a shell and an electric drive module, wherein the shell is installed on one side of the bracket, and the electric drive module is installed in the shell. The electric drive module includes a driving member and a transmission shaft, wherein the first end of the transmission shaft is connected to the output end of the driving member, and the second end of the transmission shaft is rotatable and sealed through the shell and detachably connected to the corresponding first rotating shaft, and the driving member drives the first rotating shaft to rotate by driving the transmission shaft to rotate.

[0009] Optionally, one of the end of the first rotating shaft and the end of the second end of the transmission shaft is provided with a groove, and the other is provided with a protrusion, and the protrusion is inserted into the groove.

[0010] Optionally, a shaft hole is provided on one side wall of the shell, a shaft seal mounting piece is installed in the shaft hole, the shaft seal mounting piece is provided with a mounting groove, a through hole is provided on the bottom wall of the mounting groove for the second end of the transmission shaft to pass through, the opening of the mounting groove faces the outside of the shell, a sealing ring is installed in the mounting groove, the inner wall of the sealing ring slides in contact with the outer circumferential wall of the transmission shaft, a limiting groove is provided on the transmission shaft, a retaining ring is installed in the limiting groove, and the retaining ring is used to press the sealing ring into the mounting groove.

[0011] Optionally, the shell includes a cover body and a cover plate, the cover body has an installation cavity for installing the electric drive module, the cover plate sealing cover is arranged at the opening of the installation cavity, and a transparent observation window is arranged on the cover plate.

[0012] Optionally, on the cover body, a plurality of first studs are provided in the circumferential direction of the outer edge of the opening, the cover plate is provided with first mounting holes corresponding to the first studs in the circumferential direction, the first studs are passed through the first mounting holes corresponding to the first studs and connected to first nuts, and a first sealing gasket is provided between the cover plate and the outer edge of the opening;

[0013] And / or, an observation opening is provided on the cover plate, and a plurality of second studs are provided in the circumferential direction of the outer edge of the observation opening, and second mounting holes corresponding to the second studs are provided in the circumferential direction of the observation window, and the second studs are passed through the second mounting holes corresponding to the second studs and are connected to second nuts, and a second sealing gasket is provided between the observation window and the outer edge of the observation opening.

[0014] Optionally, the electric drive module further comprises a mounting frame, which is detachably mounted on an inner side wall of the housing, and is used for mounting the drive member and the transmission shaft.

[0015] Optionally, a plurality of assembly holes are provided on the side wall of the shell, and the assembly holes are used for an assembly tool to pass through so as to install the mounting frame on an inner wall of the shell. A locking sealing assembly is detachably installed in the assembly hole, and the locking sealing assembly is used to seal the assembly hole.

[0016] Optionally, a first gear is disposed on the output shaft of the driving member, a second gear is disposed on the outer sleeve of the transmission shaft, the second gear is meshed with the first gear, and a diameter of the first gear is smaller than a diameter of the second gear.

[0017] Optionally, the electric drive module further includes:

[0018] The closing micro switch and the opening micro switch are both arranged on one side of the transmission shaft;

[0019] A cam is sleeved on the transmission shaft, and the transmission shaft can drive the cam to trigger the closing micro switch or the opening micro switch;

[0020] An auxiliary switch, wherein the second rotating shaft of the auxiliary switch is connected to the transmission shaft through a transmission assembly, and the transmission shaft can drive the second rotating shaft to rotate through the transmission assembly, so that the auxiliary switch outputs a closing signal or an opening signal;

[0021] When the cam triggers the closing micro switch and the auxiliary switch outputs a closing signal, and when the cam triggers the opening micro switch and the auxiliary switch outputs an opening signal, the driving member stops working.

[0022] Optionally, the transmission assembly includes a transmission rod, one end of which is connected to the second rotating shaft, and the other end of which is provided with a slide groove, and the slide groove is slidably connected to a connecting pin on the second gear;

[0023] Alternatively, the transmission assembly includes a transmission rod and a connecting rod, one end of the transmission rod is rotatably connected to a connecting pin on the second gear, and the other end of the transmission rod is connected to one end of the connecting rod, and the connecting rod is fixedly connected to the second rotating shaft;

[0024] Alternatively, the transmission assembly includes a first transmission gear arranged on the transmission shaft and a second transmission gear arranged on the second rotating shaft, and the second transmission gear is meshed with the first transmission gear.

[0025] The beneficial effects of the present invention are:

[0026] The present invention provides an isolating switch, comprising an isolating switch body and an electric operating mechanism. The electric operating mechanism is integrated and can be directly mounted on a bracket of the isolating switch body through a housing, so as to facilitate assembly and disassembly. Furthermore, the first rotating shaft of the isolating switch body can be driven to rotate by an electric drive module of the electric operating mechanism to realize the opening and closing of the isolating switch body. Compared with the manual operating mechanism in the prior art, the isolating switch body can be remotely controlled for opening and closing, and the intelligence is higher, which not only improves the timeliness of opening and closing of the isolating switch, but also saves manpower. In addition, when the electric operating mechanism is repaired, the electric operating mechanism can be disassembled from the isolating switch body for repair, which reduces the difficulty of repair.

[0027] The electric drive module is integrated into the shell so that the shell can protect the electric drive module, reducing the risk of damage to the electric drive module due to weather conditions such as rain when used outdoors.

[0028] The transmission shaft seal is arranged to pass through the shell, which can prevent external rainwater, dust, etc. from entering the shell through the gap between the transmission shaft and the shell and affecting the working reliability of the electric drive module in the shell, further improving the protection performance of the shell to the electric drive module, and the shell can reach the IP65 protection level. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of an isolating switch provided in an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of a portion of an isolating switch body provided by an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the structure of an electric operating mechanism provided by an embodiment of the present invention;

[0032] Figure 4 A cross-sectional view of an electric operating mechanism provided by an embodiment of the present invention Figure 1 ;

[0033] Figure 5 A schematic diagram of the structure of the electric operating mechanism provided by an embodiment of the present invention with the cover plate hidden;

[0034] Figure 6 A schematic diagram of the structure of an electric drive module provided in an embodiment of the present invention (part of the installation frame is omitted);

[0035] Figure 7 A schematic diagram of the structure of a cover body provided by an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the structure of a cover plate at a viewing angle provided by an embodiment of the present invention;

[0037] Fig. 9 A schematic diagram of the structure of a cover plate from another perspective provided by an embodiment of the present invention;

[0038] Fig.10 A cross-sectional view of an electric operating mechanism provided by an embodiment of the present invention Figure 2 ;

[0039] Fig.11 A schematic diagram of the structure of an electric drive module is provided for an embodiment of the present invention;

[0040] Fig.12 A schematic diagram of the structure of the installation frame provided by an embodiment of the present invention;

[0041] Fig.13 An assembly diagram of a transmission shaft, a second gear and a cam provided by an embodiment of the present invention;

[0042] Fig.14A cross-sectional view of an assembly diagram of a transmission shaft and a second gear provided by an embodiment of the present invention;

[0043] Fig.15 A top view of an electric drive module provided by an embodiment of the present invention;

[0044] Fig.16 A top view of another electric drive module provided by an embodiment of the present invention;

[0045] Fig.17 A top view of another electric drive module provided in an embodiment of the present invention.

[0046] In the figure:

[0047] 100, isolating switch body; 110, bracket; 111, first connecting plate; 120, first rotating shaft; 121, groove; 130, connecting piece;

[0048] 200. Electric operating mechanism;

[0049] 210, housing; 211, cover; 2111, mounting cavity; 2112, second connecting plate; 2113, second connecting hole; 2114, first stud; 2115, first nut; 2116, assembly hole; 2117, third nut; 2118, bolt; 212, cover; 2121, observation window; 2122, first mounting hole; 2123, observation opening; 2124, second stud; 2125, second nut; 2126, electrical connector;

[0050] 220, electric drive module; 221, driving member; 2211, first gear; 222, transmission shaft; 2221, protrusion; 223, mounting frame; 2231, first clamping plate; 22311, third mounting hole; 2232, second clamping plate; 22321, wire groove; 2233, support column; 224, second gear; 2241, flat key; 2242, bushing; 2243, connecting pin; 225, closing micro switch; 226, opening micro switch; 227, cam; 228, auxiliary switch; 2281, second rotating shaft; 229, transmission assembly; 2291, transmission rod; 22911, slide groove; 2292, connecting rod; 2293, first transmission gear; 2294, second transmission gear;

[0051] 230, shaft seal mounting part; 240, sealing ring; 250, retaining ring; 260, first sealing gasket; 270, second sealing gasket; 280, locking seal assembly; 281, sealing bolt; 282, sealing nut; 283, gasket; 284, third sealing gasket. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] Embodiment 1

[0057] This embodiment provides an isolating switch, which uses an integrated electric operating mechanism, can realize remote control, is easy to disassemble and assemble the electric operating mechanism, and can be used outdoors.

[0058] Specifically, Figure 1-Figure 9As shown, the isolating switch includes an isolating switch body 100 and an electric operating mechanism 200. The isolating switch body 100 includes a bracket 110 and a first rotating shaft 120 for driving the isolating switch body 100 to open and close. The first rotating shaft 120 is rotatably arranged on opposite sides of the bracket 110. The electric operating mechanism 200 includes a housing 210 and an electric drive module 220. The housing 210 is installed on one side of the bracket 110. The electric drive module 220 is installed in the housing 210. The electric drive module 220 includes a driving member 221 and a transmission shaft 222. The first end of the transmission shaft 222 is connected to the output end of the driving member 221. The second end of the transmission shaft 222 is rotatably and sealedly arranged in the housing 210 and is detachably connected to the corresponding first rotating shaft 120. The driving member 221 drives the first rotating shaft 120 to rotate by driving the transmission shaft 222 to rotate.

[0059] The electric operating mechanism 200 provided in this embodiment is integrated and can be directly installed on the bracket 110 of the isolating switch body 100 through the housing 210, which is convenient for disassembly and assembly. In addition, the first rotating shaft 120 of the isolating switch body 100 can be driven to rotate by the electric drive module 220 to realize the opening and closing of the isolating switch body 100. Compared with the manual operating mechanism in the prior art, the remote control of the opening and closing of the isolating switch body 100 can be realized, which is more intelligent, improves the timeliness of the opening and closing of the isolating switch, and saves manpower. In addition, when the electric operating mechanism is repaired, the electric operating mechanism can be disassembled from the isolating switch body for repair, which reduces the difficulty of repair. The electric drive module 220 is integrated in the housing 210, so that the housing 210 can protect the electric drive module 220, reducing the risk of damage to the electric drive module 220 due to weather reasons such as rain when used outdoors. The transmission shaft 222 is sealed and passed through the shell 210, which can prevent rainwater, dust, etc. from entering the shell 210 through the gap between the transmission shaft 222 and the shell 210 and affecting the working reliability of the electric drive module 220 in the shell 210, and further improve the protection performance of the shell 210 to the electric drive module 220.

[0060] Optionally, continue to see Figure 2-Figure 4 One of the end of the first rotating shaft 120 and the end of the second end of the transmission shaft 222 is provided with a groove 121, and the other is provided with a protrusion 2221, and the protrusion 2221 is inserted into the groove 121. The detachable connection between the first rotating shaft 120 and the transmission shaft 222 is realized by the cooperation between the protrusion 2221 and the groove 121, and the structure is simple, which is convenient for disassembly and assembly with the electric operating mechanism 200 and easy to process.

[0061] In this embodiment, a groove 121 is provided at the end of the first rotating shaft 120 , and a protrusion 2221 is provided at the end of the second end of the transmission shaft 222 .

[0062] Furthermore, in order to improve the synchronization of the rotation between the transmission shaft 222 and the first rotating shaft 120 , the groove 121 may be configured as a polygonal groove, and accordingly, the protrusion 2221 may be a polygon matching the shape of the groove 121 .

[0063] In this embodiment, the groove 121 is a rectangular groove, and the cross-sectional shape of the protrusion 2221 is also a rectangle.

[0064] Further, see Figure 3 and Figure 4 In a possible embodiment, a shaft hole is provided on one side wall of the housing 210, a shaft seal mounting member 230 is installed in the shaft hole, a shaft seal mounting member 230 is provided with a mounting groove, a through hole is provided on the bottom wall of the mounting groove for the second end of the transmission shaft 222 to pass through, the opening of the mounting groove faces the outside of the housing 210, a sealing ring 240 is installed in the mounting groove, the inner wall of the sealing ring 240 is slidably fitted to the outer peripheral wall of the transmission shaft 222, a limiting groove is provided on the transmission shaft 222, a retaining ring 250 is installed in the limiting groove, and the retaining ring 250 is used to press the sealing ring 240 into the mounting groove. The sealing between the transmission shaft 222 and the housing 210 is achieved by the shaft seal mounting member 230 and the sealing ring 240, the structure is simple, and the installation is convenient, and the shaft seal mounting member 230 and the sealing ring 240 of appropriate sizes can be selected according to the size of the transmission shaft 222, and the universality is high. Compared with arranging the sealing ring 240 on the outside of the housing 210, the sealing ring 240 is installed on the inside of the housing 210, so as to avoid working in the narrow space inside the housing 210, thereby reducing the difficulty of installing the sealing ring 240. The sealing ring 240 is stopped by the retaining ring 250, so as to improve the installation reliability of the sealing ring 240, and further improve the reliability of the seal between the housing 210 and the transmission shaft 222.

[0065] Further, see Figure 2 and Figure 3 A first connecting plate 111 is provided on the bracket 110, and a plurality of first connecting holes are provided on the first connecting plate 111. A second connecting plate 2112 is provided on the side wall of the shell 210 extending out of the transmission shaft 222, and a plurality of second connecting holes 2113 are provided on the second connecting plate 2112. The second connecting holes 2113 are arranged in a one-to-one correspondence with the first connecting holes, and a connecting piece 130 is passed through each of the corresponding first connecting holes and the second connecting holes 2113. The connecting piece 130 is used to connect the first connecting plate 111 and the second connecting plate 2112 together, so as to install the shell 210 on the bracket 110.

[0066] The housing 210 is installed on the bracket 110 through the first connecting plate 111, the second connecting plate 2112 and the connecting member 130, which has a simple structure and is convenient for installation and removal. Optionally, the connecting member 130 can be a bolt and nut assembly.

[0067] Furthermore, the first connecting plate 111 and the second connecting plate 2112 may both be in an “L” shape. With this arrangement, the connection strength between the first connecting plate 111 and the second connecting plate 2112 is relatively high, which is beneficial to improving the installation reliability of the shell 210 on the bracket 110 .

[0068] In this embodiment, five first connection holes and five second connection holes 2113 are provided.

[0069] Further, see Figure 3 , Figure 5 , Figure 8 and Fig. 9 The housing 210 includes a cover 211 and a cover plate 212. The cover 211 has an installation cavity 2111 for installing the electric drive module 220. The cover plate 212 is sealed and arranged at the opening of the installation cavity 2111. The cover plate 212 is provided with a transparent observation window 2121. The housing 210 has a simple structure and is convenient for installation and maintenance of the electric drive module 220. In addition, by providing a transparent observation window 2121 on the cover plate 212, it is convenient for the staff to obtain the working status of the electric drive module 220 through the observation window 2121.

[0070] Optionally, continue to see Figure 3 , Figure 7 , Figure 8 and Fig. 9 In a possible embodiment, on the cover body 211, a plurality of first studs 2114 are provided in the circumferential direction of the outer edge of the opening, and the cover plate 212 is provided with first mounting holes 2122 corresponding to the first studs 2114 in the circumferential direction, and the first studs 2114 are passed through the first mounting holes 2122 corresponding thereto and connected to the first nuts 2115, and a first sealing gasket 260 is provided between the cover plate 212 and the outer edge of the opening. The assembly between the cover plate 212 and the cover body 211 is achieved through the cooperation between the first studs 2114, the first mounting holes 2122 and the first nuts 2115, and the structure is simple, the installation and disassembly are relatively convenient, and the connection strength is relatively high. In addition, the sealing between the cover plate 212 and the cover body 211 is achieved through the first sealing gasket 260, and the structure is simple, the sealing performance is relatively good, and the IP65 protection level can be achieved. The material of the first sealing gasket 260 can be an elastic material, which is conducive to further improving the sealing performance between the cover plate 212 and the cover body 211.

[0071] Optionally, continue to see Figure 3 , Figure 7 , Figure 8 and Fig. 9In a possible embodiment, the cover plate 212 is provided with an observation opening 2123, a plurality of second studs 2124 are provided in the circumference of the outer edge of the observation opening 2123, a second mounting hole corresponding to the second studs 2124 is provided in the circumference of the observation window 2121, the second studs 2124 are passed through the second mounting holes corresponding thereto and connected to the second nuts 2125, and a second sealing gasket 270 is provided between the observation window 2121 and the outer edge of the observation opening 2123. The assembly between the cover plate 212 and the observation window 2121 is achieved through the cooperation between the second studs 2124, the second mounting holes and the second nuts 2125, the structure is simple, the installation and disassembly are relatively convenient, and the connection strength is relatively high. In addition, the sealing between the cover plate 212 and the observation window 2121 is achieved through the second sealing gasket 270, the structure is simple, the sealing performance is relatively good, and the IP65 protection level can be achieved. The material of the second sealing gasket 270 can be an elastic material, which is conducive to further improving the sealing performance between the cover plate 212 and the observation window 2121.

[0072] Further, see Figure 3 and Fig. 9 The cover plate 212 is also provided with an electrical connector 2126, which is used to connect to the driving member 221 so as to supply power to the driving member 221 through an external power source. Optionally, the driving member 221 may be a motor.

[0073] Optionally, the connection structure between the electrical connector 2126 and the cover plate 212 may be the same as the connection structure between the observation window 2121 and the cover plate 212 .

[0074] Furthermore, if Figure 5 , Figure 6 , Fig.11 and Fig.12 As shown, the electric drive module 220 further includes a mounting frame 223, and the driving member 221 and the first rotating shaft 120 are both mounted on the mounting frame 223. The components of the electric drive module 220 are integrated on the mounting frame 223, so that the components can be assembled on the mounting frame 223 as a whole outside the housing 210 first, and then assembled together inside the housing 210. On the one hand, it is convenient to install and disassemble the electric drive module 220 and the housing 210; on the other hand, during maintenance, the mounting frame 223 can be disassembled from the housing 210, and then the problem point can be found, which avoids working inside the narrow housing 210, which is conducive to improving maintenance efficiency.

[0075] Optionally, continue to see Figure 5 , Figure 6 , Fig.11 and Fig.12In this embodiment, the mounting frame 223 includes a first clamping plate 2231 and a second clamping plate 2232 which are spaced apart from each other. The first clamping plate 2231 and the second clamping plate 2232 are connected via a support column 2233, and the support column 2233 and the first clamping plate 2231 and the second clamping plate 2232 are detachably connected. The first clamping plate 2231 is detachably mounted on an inner side wall of the housing 210, the driving member 221 is mounted on the first clamping plate 2231, and the two ends of the transmission shaft 222 are rotatably penetrated through the first clamping plate 2231 and the second clamping plate 2232 respectively. The mounting frame 223 has a simple structure, is convenient for the installation of the driving member 221 and the transmission shaft 222, and has a high structural stability.

[0076] Further, see Figure 5 , Figure 7 and Fig.12 In this embodiment, a plurality of third nuts 2117 are provided on an inner side wall of the housing 210, and third mounting holes 22311 corresponding to the third nuts 2117 are provided on the first clamping plate 2231. A bolt 2118 is provided corresponding to each third mounting hole 22311, and the bolt 2118 passes through the third mounting hole 22311 and is connected to the third nut 2117 corresponding to the third mounting hole 22311. The first clamping plate 2231 is fixed to the inner side wall of the housing 210 by bolt connection, which has a simple structure and is convenient for installation and disassembly.

[0077] Optionally, in this embodiment, a plurality of third mounting holes 22311 are arranged along the circumference of the first clamping plate 2231 to improve the force uniformity of the first clamping plate 2231 .

[0078] Optionally, the support column 2233 and the first clamping plate 2231 , as well as the support column 2233 and the second clamping plate 2232 may be connected by bolt connection. The bolt connection structure is simple, easy to install and disassemble, and has high connection strength.

[0079] Further, see Fig.11 and Fig.12 The second clamping plate 2232 is provided with a wire groove 22321 for routing the internal wiring of the electric drive module 220 to improve the neatness of the wiring arrangement.

[0080] Furthermore, if Figure 5 , Figure 7 and Fig.10As shown, a plurality of assembly holes 2116 are provided on the side wall of the housing 210, and the assembly holes 2116 are used for an assembly tool to pass through, so as to install the mounting frame 223 on a side wall of the housing 210. Optionally, in this embodiment, the assembly holes 2116 are used for a screwdriver to pass through, so as to tighten the bolt 2118 on the third nut 2117 through the screwdriver. In addition, a locking seal assembly 280 is detachably installed in the assembly hole 2116. The locking seal assembly 280 is used to block the assembly hole 2116 after the mounting frame 223 is assembled, so as to ensure the sealing performance of the housing 210 to the electric operating mechanism 200.

[0081] Optionally, continue to see Fig.10 In this embodiment, the locking seal assembly 280 includes a sealing bolt 281, a sealing nut 282, a gasket 283 and a third sealing gasket 284. The sealing bolt 281 is inserted into the assembly hole 2116 and connected to the locking nut. A third sealing gasket 284 is provided between the head of the sealing bolt 281 and the outer side wall of the housing 210, and between the sealing nut 282 and the inner side wall of the housing 210. A gasket 283 is provided between one third sealing gasket 284 and the head of the sealing bolt 281, and between another third sealing gasket 284 and the sealing nut 282. The locking seal assembly 280 has a simple structure and is easy to install. The third sealing gasket 284 and the gasket 283 are provided on both sides of the assembly hole 2116, and the sealing effect is better.

[0082] Furthermore, if Figure 6 , Fig.13 and Fig.14 As shown, a first gear 2211 is provided on the output shaft of the driving member 221, and a second gear 224 is provided on the outer sleeve of the transmission shaft 222. The second gear 224 meshes with the first gear 2211, and the diameter of the first gear 2211 is smaller than the diameter of the second gear 224. The driving member 221 drives the transmission shaft 222 to rotate by the first gear 2211 driving the second gear 224, which can realize a large torque ratio transmission, a stable output ratio, and a high transmission efficiency.

[0083] Optionally, continue to see Fig.14 The second gear 224 and the transmission shaft 222 are connected via a flat key 2241 to ensure synchronous movement between the second gear 224 and the transmission shaft 222 .

[0084] Optionally, continue to see Fig.14 A shaft sleeve 2242 is also sleeved on the transmission shaft 222 , one end of the shaft sleeve 2242 abuts against the second gear 224 , and the other end abuts against the first clamping plate 2231 , so as to limit the axial position of the transmission shaft 222 .

[0085] Furthermore, if Figure 6 , Figure 15-17As shown, the electric drive module 220 also includes a closing micro switch 225, an opening micro switch 226, a cam 227 and an auxiliary switch 228. The closing micro switch 225 and the opening micro switch 226 are both arranged on one side of the transmission shaft 222. Optionally, the closing micro switch 225 and the opening micro switch 226 can be both arranged on the second clamping plate 2232. The cam 227 is sleeved on the transmission shaft 222, and the transmission shaft 222 can drive the cam 227 to trigger the closing micro switch 225 or the opening micro switch 226. The second rotating shaft 2281 of the auxiliary switch 228 is connected to the transmission shaft 222 through the transmission assembly 229, and the transmission shaft 222 can drive the second rotating shaft 2281 to rotate through the transmission assembly 229, so that the auxiliary switch 228 outputs a closing signal or an opening signal.

[0086] If it is necessary to remotely control the electric drive module 220 to drive the isolating switch body 100 to close, the control drive member 221 is started, so that the drive member 221 drives the transmission shaft 222 to rotate. When the cam 227 triggers the closing micro switch 225 and at the same time, the auxiliary switch 228 outputs a closing signal through the transmission component 229, the control drive member 221 stops working and the isolating switch body 100 is closed.

[0087] If it is necessary to remotely control the electric drive module 220 to drive the isolating switch body 100 to open, the control drive member 221 is started, so that the drive member 221 drives the transmission shaft 222 to rotate. When the cam 227 triggers the opening micro switch 226 and at the same time, the auxiliary switch 228 outputs an opening signal through the transmission component 229, the control drive member 221 stops working and the isolating switch body 100 opens.

[0088] The position of the isolating switch (open position or closed position) is detected by the closing micro switch 225, the opening micro switch 226 and the auxiliary switch 228, thereby improving the reliability of position detection and helping to reduce the failure rate.

[0089] Optionally, the cam 227 may be a split type or an integrated type, and may be set according to the number of contacts of the opening micro switch 226 or the closing micro switch 225 .

[0090] Optionally, in this embodiment, the auxiliary switch 228 is also disposed on the first clamping plate 2231 .

[0091] Optionally, continue to see Fig.15In this embodiment, the transmission assembly 229 includes a transmission rod 2291, one end of which is connected to the second rotating shaft 2281, and the other end is provided with a slide groove 22911, and the slide groove 22911 is slidably connected to the connecting pin 2243 on the second gear 224. That is, the second gear 224, the connecting pin 2243, the transmission rod 2291 and the second rotating shaft 2281 form a crank slider mechanism, and the transmission between the transmission shaft 222 and the second rotating shaft 2281 is realized through the crank slider mechanism, which has a simple structure and reliable force transmission.

[0092] Embodiment 2

[0093] This embodiment provides an isolating switch, which has a substantially same structure as that of the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the same structures of this embodiment and the first embodiment are not described here. In this embodiment, the same or corresponding technical features as those of the first embodiment are marked with the same reference numerals.

[0094] Specifically, see Fig.16 In this embodiment, the transmission assembly 229 includes a transmission rod 2291 and a connecting rod 2292. One end of the transmission rod 2291 is rotatably connected to the connecting pin 2243 on the second gear 224, and the other end is connected to one end of the connecting rod 2292. The connecting rod 2292 is fixedly connected to the second rotating shaft 2281. The transmission between the transmission shaft 222 and the second rotating shaft 2281 is realized by the transmission rod 2291 and the connecting rod 2292, which has a simple structure, reliable force transmission, and is easy to install.

[0095] Embodiment 3

[0096] This embodiment provides an isolating switch, which has a substantially same structure as that of the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the same structures of this embodiment and the first embodiment are not described here. In this embodiment, the same or corresponding technical features as those of the first embodiment are marked with the same reference numerals.

[0097] Specifically, see Fig.17 In this embodiment, the transmission assembly 229 includes a first transmission gear 2293 disposed on the transmission shaft 222 and a second transmission gear 2294 disposed on the second rotating shaft 2281, and the second transmission gear 2294 is meshed with the first transmission gear 2293. The transmission between the transmission shaft 222 and the second rotating shaft 2281 is achieved by gear meshing, so that the transmission stability and reliability are better and the structure is simple.

[0098] Embodiment 4

[0099] This embodiment provides a circuit breaker, comprising a pole, a fuse, and the isolating switch provided in the first embodiment, the second embodiment, or the third embodiment. Optionally, the circuit breaker is used outdoors.

[0100] Since the circuit breaker adopts the above-mentioned isolating switch, the remote opening and closing of the isolating switch can be realized, and the maintenance of the isolating switch is also relatively convenient.

[0101] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Isolating switch, characterized in that: include: The isolating switch body (100) comprises a bracket (110) and a first rotating shaft (120) for driving the isolating switch body (100) to open or close, wherein the first rotating shaft (120) is rotatably disposed on two opposite sides of the bracket (110); The electric operating mechanism (200) comprises a housing (210) and an electric drive module (220), wherein the housing (210) is mounted on one side of the bracket (110), and the electric drive module (220) is mounted in the housing (210). The electric drive module (220) comprises a driving member (221) and a transmission shaft (222), wherein a first end of the transmission shaft (222) is connected to an output end of the driving member (221), and a second end of the transmission shaft (222) is rotatably and sealably penetrated through the housing (210) and is detachably connected to the corresponding first rotating shaft (120), and the driving member (221) drives the transmission shaft (222) to rotate, thereby driving the first rotating shaft (120) to rotate.

2. The isolating switch according to claim 1, characterized in that: One of the end of the first rotating shaft (120) and the end of the second end of the transmission shaft (222) is provided with a groove (121), and the other is provided with a protrusion (2221), and the protrusion (2221) is inserted into the groove (121).

3. The isolating switch according to claim 1, characterized in that: A shaft hole is provided on one side wall of the shell (210), a shaft seal mounting member (230) is installed in the shaft hole, the shaft seal mounting member (230) is provided with a mounting groove, a through hole is provided on the bottom wall of the mounting groove for the second end of the transmission shaft (222) to pass through, the opening of the mounting groove faces the outside of the shell (210), a sealing ring (240) is installed in the mounting groove, the inner wall of the sealing ring (240) is slidably fitted on the outer peripheral wall of the transmission shaft (222), a limiting groove is provided on the transmission shaft (222), a retaining ring (250) is installed in the limiting groove, and the retaining ring (250) is used to press the sealing ring (240) into the mounting groove.

4. The isolating switch according to claim 1, characterized in that: The housing (210) comprises a cover body (211) and a cover plate (212); the cover body (211) has a mounting cavity (2111) for mounting the electric drive module (220); a sealing cover of the cover plate (212) is arranged at an opening of the mounting cavity (2111); and a transparent observation window (2121) is arranged on the cover plate (212).

5. The isolating switch according to claim 4, characterized in that: On the cover body (211), a plurality of first studs (2114) are arranged in the circumferential direction of the outer edge of the opening, and first mounting holes (2122) corresponding to the first studs (2114) are arranged in the circumferential direction of the cover plate (212), and the first studs (2114) are passed through the first mounting holes (2122) corresponding to the first studs (2114) and connected to the first nuts (2115), and a first sealing gasket (260) is arranged between the cover plate (212) and the outer edge of the opening; And / or, an observation opening (2123) is provided on the cover plate (212), a plurality of second studs (2124) are provided in the circumferential direction of the outer edge of the observation opening (2123), second mounting holes corresponding one to one with the second studs (2124) are provided in the circumferential direction of the observation window (2121), the second studs (2124) are passed through the second mounting holes corresponding thereto and are connected to the second nuts (2125), and a second sealing gasket (270) is provided between the observation window (2121) and the outer edge of the observation opening (2123).

6. The isolating switch according to claim 1, characterized in that: The electric drive module (220) further comprises a mounting frame (223), wherein the mounting frame (223) is detachably mounted on an inner side wall of the housing (210), and the mounting frame (223) is used to mount the drive member (221) and the transmission shaft (222).

7. The isolating switch according to claim 6, characterized in that: A plurality of assembly holes (2116) are provided on the side wall of the shell (210), and the assembly holes (2116) are used for an assembly tool to pass through so as to install the installation frame (223) on an inner wall of the shell (210). A locking seal assembly (280) is detachably installed in the assembly hole (2116), and the locking seal assembly (280) is used to seal the assembly hole (2116).

8. The isolating switch according to any one of claims 1 to 7, characterized in that: A first gear (2211) is provided on the output shaft of the driving member (221), a second gear (224) is provided on the outer sleeve of the transmission shaft (222), the second gear (224) is meshed with the first gear (2211), and the diameter of the first gear (2211) is smaller than the diameter of the second gear (224).

9. The isolating switch according to claim 8, characterized in that: The electric drive module (220) further includes: A closing micro switch (225) and an opening micro switch (226) are both arranged on one side of the transmission shaft (222); A cam (227) is sleeved on the transmission shaft (222), and the transmission shaft (222) can drive the cam (227) to trigger the closing micro switch (225) or the opening micro switch (226); an auxiliary switch (228), wherein the second rotating shaft (2281) of the auxiliary switch (228) is in transmission connection with the transmission shaft (222) via a transmission assembly (229), and the transmission shaft (222) can drive the second rotating shaft (2281) to rotate via the transmission assembly (229), so that the auxiliary switch (228) outputs a closing signal or an opening signal; When the cam (227) triggers the closing micro switch (225) and the auxiliary switch (228) outputs a closing signal, and when the cam (227) triggers the opening micro switch (226) and the auxiliary switch (228) outputs an opening signal, the driving member (221) stops working.

10. The isolating switch according to claim 9, characterized in that: The transmission assembly (229) comprises a transmission rod (2291), one end of the transmission rod (2291) is connected to the second rotating shaft (2281), and the other end is provided with a slide groove (22911), and the slide groove (22911) is slidably connected to a connecting pin (2243) on the second gear (224); Alternatively, the transmission assembly (229) comprises a transmission rod (2291) and a connecting rod (2292), one end of the transmission rod (2291) is rotatably connected to a connecting pin (2243) on the second gear (224), and the other end is connected to one end of the connecting rod (2292), and the connecting rod (2292) is fixedly connected to the second rotating shaft (2281); Alternatively, the transmission assembly (229) includes a first transmission gear (2293) arranged on the transmission shaft (222) and a second transmission gear (2294) arranged on the second rotating shaft (2281), and the second transmission gear (2294) is meshed with the first transmission gear (2293).

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