Isolating switch with remote opening function

Abstract

The utility model discloses an isolating switch with a remote opening function. The isolating switch comprises a contact mechanism and an operating mechanism arranged on the contact mechanism, the operation mechanism comprises an installation shell installed on the contact mechanism, a shell cover installed on the installation shell, an operation assembly installed on the installation shell and the shell cover and connected with the contact mechanism, a first tripping assembly and a second tripping assembly installed in the installation shell, and a linkage push rod assembly movably installed in the installation shell. According to the utility model, through the arrangement of the first tripping assembly and the second tripping assembly and the cooperation of the linkage push rod assembly, the operation assembly can be pushed to move and free tripping can be carried out during tripping, so that the product protection covers all fault working conditions, and under the condition that the second tripping assembly carries out tripping, a circuit cannot be directly switched on, and the safety of the product is ensured. After some faults that the circuit needs to be switched on after the system is checked occur, maintenance personnel can be prevented from directly operating the switch to switch on the circuit due to misoperation, so that more serious accidents are avoided.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, specifically to a disconnecting switch with remote tripping function. Background Technology

[0002] A disconnector switch is a switching device primarily used for isolating power supplies, switching operations, and connecting and disconnecting low-current circuits. When a circuit fault occurs, rapid circuit disconnection is required; however, traditional disconnectors generally lack rapid tripping functionality, necessitating the use of other electrical components for this purpose. With the rapid development of the photovoltaic industry, disconnectors are widely used in photovoltaic power distribution systems. In recent years, improving the reliability and reducing the cost of photovoltaic power distribution systems have become increasingly important, placing greater emphasis on the functional requirement of rapid circuit disconnection in disconnectors.

[0003] Existing remotely fast-opening disconnect switches typically unlock the energy storage structure of the trip mechanism, which then drives the switch to open rapidly. Since the energy storage structure is fixedly connected to the operating handle, the handle moves along with the energy storage structure when the switch is remotely unlocked. After the switch trips, the energy storage structure is reset by the closing operation, leading to the following problems with these products:

[0004] 1. The product's tripping is controlled by the handle and cannot be freely released from the handle. This means that the product's protection cannot cover all fault conditions. When the operator closes the circuit and applies closing force to the handle, the product cannot trip, or the product cannot trip when the handle is stuck in the closed position. This can lead to forced power-on when there is an abnormality in the circuit, which may cause equipment damage or safety accidents.

[0005] 2. If the disconnecting switch can be immediately closed after tripping and cutting off the circuit, it is easy for the switch to be accidentally closed before the circuit fault is cleared, which can easily lead to safety accidents. Utility Model Content

[0006] The purpose of this invention is to propose a disconnecting switch with remote tripping function, which solves the problem in the prior art where the tripping of existing disconnecting switches is connected to the handle, resulting in the product protection not being able to cover all fault conditions and easily causing safety accidents.

[0007] To achieve the above objectives, this utility model proposes a disconnecting switch with remote tripping function, including a contact mechanism and an operating mechanism disposed on the contact mechanism; the operating mechanism includes a mounting shell mounted on the contact mechanism, a shell cover mounted on the mounting shell, an operating component mounted on the mounting shell and the shell cover and connected to the contact mechanism, a first tripping component and a second tripping component mounted inside the mounting shell, and a linkage push rod component movably mounted inside the mounting shell.

[0008] Optionally, both the first and second tripping components have a tripped state and a tripped state; when the first and / or second tripping components receive a tripping signal and trip, the operating component moves via the linkage push rod assembly, and the operating component drives the contact mechanism to open; when the first and second tripping components are in the tripped state, the operating component can drive the first tripping component to move via the linkage push rod assembly, so that the first tripping component is reset, and the second tripping component remains in the tripped state; when both the first and second tripping components are in the tripped state, the contact mechanism has a closed state and a closed state; when the first and / or second tripping components are in the tripped state, the contact mechanism is in the closed state.

[0009] Optionally, the operating mechanism further includes a disengagement component connected to the contact mechanism on the mounting operating assembly, and a reset button mounted on the mounting housing for pushing the second tripping assembly to reset.

[0010] Optionally, the operating component includes a main shaft extending through the housing cover, a handle mounted on the top of the main shaft, a drive component mounted on the main shaft, a driven component rotatably mounted on the main shaft, an elastic component for connecting the drive component and the driven component, a locking component rotatably mounted on the drive component, the locking component being able to lock the driven component, so that the drive component and the driven component move synchronously, and the driven component being connected to the connecting / disconnecting component.

[0011] Optionally, the locking component includes a locking pin movably mounted on the driving component, a latch movably mounted on the driving component via the locking pin, and a latch elastic reset component movably mounted on the locking pin and engaged with the latch.

[0012] Optionally, the latch has a protrusion, and the driven member has a groove corresponding to the protrusion.

[0013] Optionally, the opening and closing assembly includes a second transmission component connected to the driven component, a first transmission component mounted on the second transmission component and connected to the contact mechanism, an energy storage component disposed between the first and second transmission components, and a first and a second locking component movably mounted on the mounting housing, both of which are equipped with a locking elastic reset component.

[0014] Optionally, the reset button includes a button mounted on the mounting housing and a button reset component fitted onto the button.

[0015] Optionally, the first transmission member is provided with a locking groove, and when the end of the first locking member or the end of the second locking member is located in the locking groove, the first transmission member is locked.

[0016] Optionally, the transmission component two is provided with an unlocking boss.

[0017] Optionally, the first tripping component and the second tripping component are electromagnets.

[0018] Optionally, the linkage push rod assembly includes a push rod pin installed in the mounting housing, a linkage push rod movably installed in the mounting housing via the push rod pin, and a push rod elastic reset member installed on the push rod pin and engaged with the linkage push rod.

[0019] Optionally, the linkage push rod includes a connecting part, and push arm one and push arm two are respectively disposed at both ends of the connecting part. Push arm one corresponds to the first release assembly, and push arm two corresponds to the second release assembly.

[0020] Optionally, the distance between the push arm one and the first tripping assembly is less than the distance between the push arm two and the second tripping assembly; the push arm one is provided with a reset protrusion, and the driving member is provided with a mating protrusion corresponding to the reset protrusion.

[0021] Compared with the prior art, this utility model provides a disconnecting switch with remote tripping function, which has the following advantages:

[0022] This disconnecting switch with remote tripping function, through the setting of a first tripping component and a second tripping component, in conjunction with a linkage push rod component, can push the operating component to move during tripping, allowing for free tripping. This enables the product to protect against all fault conditions and control the circuit according to the actual situation. When the first tripping component trips, the disconnecting switch can be directly closed to connect the circuit. When the second tripping component trips, the circuit cannot be directly closed. This prevents maintenance personnel from accidentally operating the switch to connect the circuit after faults that require system inspection before circuit connection, thus avoiding more serious accidents. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the disconnector switch in this utility model.

[0024] Figure 2 This is a disassembly diagram of the disconnecting switch in this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the operating component in this utility model.

[0026] Figure 4 This is a cross-sectional view of the operating component in this utility model.

[0027] Figure 5 This is a schematic diagram of the operating components of this utility model in the closed state.

[0028] Figure 6 This is a schematic diagram of the operating components in the open state of this utility model.

[0029] Figure 7 This is a schematic diagram of the locking state of the locking component and the driven component of this utility model.

[0030] Figure 8 This is a schematic diagram of the initial state when the device trips.

[0031] Figure 9 This is a schematic diagram of the intermediate state of the drive component rotating when the device trips.

[0032] Figure 10 This is a schematic diagram of the first tripping component resetting after tripping according to this utility model.

[0033] Figure 11 This is a schematic diagram of the unlocked and disengaged state of the locking component and the driven component when the present invention is released.

[0034] Figure 12 This is a schematic diagram showing the synchronous rotation of the driven component and the driving component after the release of the device.

[0035] Figure 13 This is a structural schematic diagram of the tripping assembly, linkage push rod assembly, and reset button of this utility model.

[0036] Figure 14 This is a schematic diagram showing the positions of the reset button and the tripping component of this utility model.

[0037] Figure 15 This is a schematic diagram of the closing / opening assembly of this utility model in the closed state.

[0038] Figure 16 This is a schematic diagram of the closing / opening assembly in the tripping or opening state of this utility model.

[0039] The diagram shows the following components: 1. Operating mechanism; 10. Mounting housing; 101. Housing cover; 11. Operating component; 110. Main shaft; 111. Handle; 112. Driving component; 1121. Mating protrusion; 113. Driven component; 1131. Groove; 114. Elastic component; 115. Support shaft; 12. First release assembly; 13. Second release assembly; 14. Linkage push rod assembly; 141. Push rod pin; 142. Linkage push rod; 1421. Push arm one; 1422. Push arm two; 1423. Connecting part; 142 4. Reset protrusion; 143. Push rod elastic reset component; 15. Opening / closing assembly; 151. Transmission component one; 1511. Locking groove; 152. Transmission component two; 1521. Unlocking protrusion; 153. Energy storage component; 154. Locking component one; 155. Locking component two; 156. Locking elastic reset component; 16. Reset button; 161. Button; 162. Button reset component; 17. Locking fastener; 171. Locking pin; 172. Lock; 173. Locking elastic reset component; 174. Protrusion; 2. Contact mechanism. Detailed Implementation

[0040] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, illustrates the present invention. Numerous specific details are set forth in the description below to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] The disconnecting switch with remote tripping function of this application can be used in occasions where remote short circuit disconnection is required, and of course it can also be used in other similar application scenarios. The following is a detailed description of a disconnecting switch with remote tripping function.

[0042] See appendix Figure 1 — Figure 16 The diagram shows a preferred embodiment of a disconnector switch with remote tripping function according to this application. The disconnector switch with remote tripping function includes a contact mechanism 2 and an operating mechanism 1 disposed on the contact mechanism 2. The operating mechanism 1 includes a mounting housing 10 mounted on the contact mechanism 2, a cover 101 mounted on the mounting housing 10, an operating component 11 mounted on the mounting housing 10 and the cover 101 and connected to the contact mechanism 2, a first tripping component 12 and a second tripping component 13 mounted inside the mounting housing 10, and a linkage push rod assembly 14 movably mounted inside the mounting housing 10.

[0043] The first tripping component 12 and the second tripping component 13 of this utility model both have a tripping state and a tripping state. When the first tripping component 12 and / or the second tripping component 13 receives a tripping signal and trips, the operating component 11 is moved by the linkage push rod component 14. The operating component 11 drives the contact mechanism 2 to open, so that the moving contact and the stationary contact in the contact mechanism 2 are separated. When both the first tripping component 12 and the second tripping component 13 are in the tripping state, the first tripping component 12 can be reset by controlling the operating component 11 in conjunction with the linkage push rod component 14, but the second tripping component 13 cannot be reset. When both the first tripping component 12 and the second tripping component 13 are in the tripping state, the contact mechanism 2 can be connected and closed or disconnected and opened by the operating component 11. However, when the first tripping component 12 and / or the second tripping component 13 are in the tripping state, the contact mechanism 2 can only be in the open state. This utility model, through the setting of the linkage push rod assembly 14, enables the first tripping assembly 12 and the second tripping assembly 13 to be linked with the operating assembly 11, thereby driving the contact mechanism 2 to rotate and separate.

[0044] It should be noted that the contact mechanism 2 in this application is prior art, and this application does not improve the contact mechanism 2. This contact mechanism 2 has already been disclosed in a utility model patent with application number 202220245499.2, entitled "A Rotary Disconnecting Switch Arc Extinguishing Structure," therefore, it will not be described again here. In this application, the first tripping component 12 and the second tripping component 13 can be push-pull electromagnets.

[0045] See appendix Figure 2 , Figure 15 and Figure 16 As shown, in this utility model, the operating mechanism 1 also includes a disassembly / retraction component 15 connected to the operating component 11 at the top and to the contact mechanism 2 at the bottom, and a reset button 16 mounted on the mounting shell 10 for pushing the second tripping component 13 to reset.

[0046] This application uses the opening and closing component 15 to store and delay the transmission of power to the operating component 11. The contact mechanism 2 will only rotate after the operating component 11 has moved to the designated position. This prevents the contact mechanism 2 from responding immediately after the operating component 11 is misoperated, thus avoiding frequent contact and separation of the moving and stationary contacts in the contact mechanism 2. The reset button 16 is used to push the second tripping component 13 to reset, ensuring that the isolating switch can be closed normally after the circuit fault is cleared.

[0047] See appendix Figure 3 — Figure 7As shown, in this utility model, the operating component 11 includes a main shaft 110 that passes through the housing cover 101, a handle 111 mounted on the top of the main shaft 110, a drive component 112 mounted on the main shaft 110, a driven component 113 rotatably mounted on the main shaft 110, an elastic component 114 for connecting the drive component 112 and the driven component 113, and a locking component 17 rotatably mounted on the drive component 112, wherein the locking component 17 can lock the driven component 113, so that the drive component 112 and the driven component 113 move synchronously, and the driven component 113 is connected to the connecting / disconnecting component 15. A support shaft 115 is provided between the driving member 112 and the driven member 113. An elastic member 114 is fitted on the support shaft 115 and located between the driving member 112 and the driven member 113. The support shaft 115 is connected to the main shaft 110 through a pin 1151. In addition, the top of the support shaft 115 is provided with a slot that matches the pin 1151. The end of the driving member 112 is engaged in the slot and rotates synchronously with the support shaft 115. When the main shaft 110 rotates, it drives the support shaft 115 to rotate through the pin 1151, and the support shaft 115 drives the driving member 112 to rotate.

[0048] This utility model, through the setting of handle 111, facilitates the operator to drive the main shaft 110 to rotate; through the setting of locking member 17, it is used to lock the driven member 113 and the driving member 112, so that the driving member 112 and the driven member 113 move synchronously, which facilitates the operator to perform the operation of closing and opening the circuit breaker through handle 111. It should be noted that the locking member 17 can be unlocked, so that the driven member 113 and the driving member 112 can move in separate steps.

[0049] See appendix Figure 5 — Figure 7 As shown, in this utility model, the locking component 17 includes a locking pin 171 movably mounted on the driving component 112, a locking buckle 172 movably mounted on the driving component 112 via the locking pin 171, and a locking buckle elastic reset component 173 movably mounted on the locking pin 171 and connected to the locking buckle 172.

[0050] This invention provides a rotation center through the locking pin 171, allowing the latch 172 to rotate via the locking pin 171, thus enabling the latch 172 to lock and unlock the driven member 113. The elastic reset member 173 provides a reset force to the latch 172, so that when the latch is rotated by an external force, the elastic reset member 173 can drive the latch 172 to reset, allowing the latch 172 to re-lock the driven member 113. It should be noted that the latch 172 has a protrusion 174, and the driven member 113 has a corresponding groove 1131. When the protrusion 174 of the latch 172 is located within the groove 1131, the driven member 113 can be locked, allowing the driven member 113 to move synchronously with the driving member 112.

[0051] See appendix Figure 2 , Figure 15 and Figure 16 As shown, in this utility model, the merging and splitting assembly 15 includes a second transmission member 152 connected to the driven member 113, a first transmission member 151 mounted on the second transmission member 152 and connected to the contact mechanism 2, an energy storage member 153 disposed between the first transmission member 151 and the second transmission member 152, and a first locking member 154 and a second locking member 155 movably mounted on the mounting housing 10 for limiting the first transmission member 151. Both the second locking member 155 and the first locking member 154 are equipped with locking elastic reset members 156. It should be noted that one end of the energy storage member 153 is engaged with the second transmission member 152, and the other end is engaged with the first transmission member 151.

[0052] This invention utilizes an energy storage component 153 to store energy for the relative rotation between transmission component two 152 and transmission component one 151. When transmission component two 152 moves to a designated position, the energy storage component 153 releases the stored energy, causing transmission component one 151 to rotate. This rotation drives the moving contact in the contact mechanism 2, allowing the moving and stationary contacts in the contact mechanism 2 to contact or separate. Locking components one 154 and two 155 limit the movement of transmission component one 151 while transmission component two 152 rotates, allowing relative rotation between them and enabling the energy storage component 153 to store energy. This ensures that when transmission component two 152 has not rotated to the designated position, transmission component one 151 cannot drive the moving contact in the contact mechanism 2 to rotate, preventing accidental separation of the moving and stationary contacts and resulting in power failure.

[0053] See appendix Figure 15 and Figure 16As shown, in this utility model, the first transmission component 151 is provided with a locking groove 1511. When the end of the first locking component 154 or the end of the second locking component 155 is located in the locking groove 1511, the first transmission component 151 is locked. The second transmission component 152 is provided with an unlocking boss 1521. This utility model, through the setting of the locking groove 1511, cooperates with the first locking component 154 and the second locking component 155 to lock the first transmission component 151. Only when the second transmission component 152 is in the closed or open position will the first transmission component 151 rotate and move, thereby preventing accidental circuit disconnection.

[0054] See appendix Figure 2 , Figure 5 , Figure 14 and Figure 15 As shown, in this utility model, the reset button 16 includes a button 161 mounted on the mounting shell 10 and a button reset component 162 fitted on the button 161. The button reset component 162 enables the button 161 to be reset after being pressed. It should be noted that the end of the button 161 is provided with a limiting protrusion to prevent it from separating from the mounting shell 10 during the reset process.

[0055] See appendix Figure 13 As shown, in this utility model, the linkage push rod assembly 14 includes a push rod pin 141 installed in the mounting housing 10, a linkage push rod 142 movably installed in the mounting housing 10 via the push rod pin 141, and a push rod elastic reset member 143 installed on the push rod pin 141 and engaged with the linkage push rod 142.

[0056] The present invention provides a mounting position for the linkage push rod 142 by setting the push rod pin 141, ensuring that the linkage push rod 142 can rotate around the push rod pin 141; and by setting the push rod elastic reset member 143, it ensures that the end of the linkage push rod 142 is in close contact with the first release assembly 12, preventing over-rotation during the release process, which would result in the inability to reset.

[0057] See appendix Figure 8 — Figure 13 As shown, in this utility model, the linkage push rod 142 includes a connecting part 1423, and push arm 1421 and push arm 1422 are respectively provided at both ends of the connecting part 1423. Push arm 1421 corresponds to the first tripping component 12, and push arm 1422 corresponds to the second tripping component 13. The distance between push arm 1421 and the first tripping component 12 is smaller than the distance between push arm 1422 and the second tripping component 13. Push arm 1421 is provided with a reset protrusion 1424, and the driving member 112 is provided with a mating protrusion 1121 corresponding to the reset protrusion 1424.

[0058] This utility model uses the connecting part 1423 to fix the push arm 1421 and the push arm 1422 together, ensuring that the entire linkage push rod 142 will move when either push arm 1421 or the push arm 1422 is subjected to external force. By limiting the distance between the push arm 1421 and the first release assembly 12 and the distance between the push arm 1422 and the second release assembly 13, it is ensured that during the release process, both the first release assembly 12 and the second release assembly 13 can rotate the linkage push rod 142 to release the linkage. If the second release assembly... After component 13 trips, during the reset process of the linkage push rod 142, the first push arm first contacts the first trip component 12 and pushes the first trip component 12 to reset. After the first trip component 12 moves a certain distance, the second trip component 13 will contact the second push arm 1422. When the first trip component 12 is reset, the entire linkage push rod 142 is fixed and cannot push the second trip component 13 to reset, resulting in the second trip component 13 not being reset. At this time, the second trip component 13 continues to trip, pushing the linkage push rod 142 to rotate, ensuring the circuit is disconnected and avoiding accidental reclosing.

[0059] See appendix Figure 1 — Figure 16 As shown, the usage process of this utility model is as follows:

[0060] Opening process:

[0061] The operator rotates handle 111 in the direction of opening the circuit breaker. Handle 111 drives the main shaft 110 to rotate, which in turn drives the drive component 112 to rotate. The drive component 112 rotates synchronously via the locking pin 171, which in turn drives the latch 172 to rotate. Since the protrusion 174 on the latch 172 is located within the groove 1131 of the driven component 113, the latch 172 drives the driven component 113 to rotate. The driven component 113 then drives the connected transmission component 152 to rotate. Because the end of the locking component 155 is inserted into the locking groove 1511 of the transmission component 151, the transmission component 151 cannot rotate. At this time, the energy storage component 153 rotates with the transmission component 152. The energy storage is continuously maintained. When the handle 111 drives the transmission component 152 to rotate and approach the open position, one end of the unlocking boss 1521 on the transmission component 152 contacts the locking component 155. When the handle 111 drives the transmission component 152 to rotate to the open position, the end of the unlocking boss 1521 pushes the locking component 155 to rotate, causing the end of the locking elastic reset component 156 to separate from the locking groove 1511. At this time, the transmission component 151 is no longer limited, and the energy storage component 153 begins to release elastic potential energy, causing the transmission component 151 to rotate in the same direction. At this time, the transmission component 151 drives the moving contact in the contact mechanism 2 to rotate, completing the opening. At the same time, the end of the locking component 154 is inserted into the locking groove 1511.

[0062] Closing process:

[0063] The operator rotates handle 111 in the closing direction, which drives drive component 112 to rotate, causing driven component 113, which is limited by latch 172, to rotate. Driven component 113 drives transmission component 152 to rotate, and energy storage component 153 begins to store energy. When transmission component 152 rotates to the closing position, the other end of unlocking boss 1521 on transmission component 152 pushes locking component 154 to rotate and unlock. At this time, transmission component 151 rotates in the closing direction through the elastic potential energy released by energy storage component 153, causing the moving contact in contact mechanism 2 to rotate, completing the closing, and causing the end of locking component 155 to be inserted into locking groove 1511.

[0064] It should be noted that one end of the transmission component 173 is in contact with the driven component 113, and the maximum static friction between the locking elastic reset component 173 and the driven component 113 is equal to the elastic reset force generated by the locking elastic reset component 173.

[0065] Tripping process:

[0066] An external tripping signal causes the first tripping assembly 12 and / or the second tripping assembly 13 to extend and contact the push arm 1421 or the push arm 1422, pushing the linkage push rod 142 to rotate around the push rod pin 141. The end of the linkage push rod 142 away from the first tripping assembly 12 contacts the end of the latch 172 and pushes the latch 172 to rotate around the latch pin 171, causing the protrusion 174 to separate from the groove 1131. At this time, the elastic element 114 releases its stored potential energy, driving the driven element 113 to move in the opening direction until it collides with the driving element 112. At the same time, the stored potential energy of the elastic element 114 continues to be released, driving the driving element 112 to rotate, causing the handle 111 to rotate to the opening position. The driven element 113 also drives the transmission element 152 to rotate, causing the closing and opening assembly 15 to perform the above-mentioned opening process to complete the opening.

[0067] The closing process after tripping:

[0068] If the trip is driven by the first trip assembly 12, first rotate the handle 111 in the opening rotation direction by a specified angle so that the protrusion 174 re-engages in the groove 1131. At the same time, make the mating protrusion 1121 on the drive member 112 contact the reset protrusion 1424 and push the linkage push rod 142 to rotate around the push rod pin 141, so that the push arm 1421 pushes the first trip assembly 12 to reset. After the first trip assembly 12 is reset, rotate the handle 111 in the closing direction to close the circuit.

[0069] If the tripping is driven by the second tripping assembly 13, since there is a gap between the push arm 1422 and the second tripping assembly 13, the push arm 1422 cannot reset the second tripping assembly 13. Therefore, the push arm 1422 will be pushed out again and remain in the tripped state. If the circuit is closed by the handle 111, the latch 172 will be limited by the linkage push rod 142 before it can continue to close. Therefore, when the tripping is driven by the second tripping assembly 13, the second tripping assembly 13 needs to be reset by pressing the button 161 before the tripping and closing steps can be performed.

[0070] This application uses a tripping assembly for tripping, pushing the latch 172 to separate the driven member 113 from the driving member 112. This allows the product to trip even when the closing hand is still applying closing force to the handle 111 or when the handle 111 is stuck in the closing position. After the product trips, the elastic member 114 of the mechanism needs to be re-energized and the tripping assembly needs to be reset. The direction of energy storage and reset is opposite to the closing direction. During this operation, the handle only needs to overcome the energy storage and reset force, and the operating torque is relatively small. The disconnecting switch can receive different tripping signals to cut off the circuit. The subsequent state of the switch is different after tripping with different signals. One state is that it can be reset and closed immediately, and the other state is that the disconnecting switch can be reset and closed again after the reset button 16 is pressed manually. This can prevent the switch from being accidentally closed after some faults that require inspection before it can be closed again.

[0071] The above embodiments are illustrative of this application and are not intended to limit this application. Any simple modifications to this application are within the protection scope of this application.

Claims

1. A disconnector with remote opening function, comprising a contact mechanism (2) and an operating mechanism (1) arranged on the contact mechanism (2). characterized in that The operating mechanism (1) comprises a mounting shell (10) mounted on the contact mechanism (2), a shell cover (101) mounted on the mounting shell (10), an operating assembly (11) mounted on the mounting shell (10) and the shell cover (101) and connected with the contact mechanism (2), a first tripping assembly (12) and a second tripping assembly (13) mounted in the mounting shell (10), and a linkage push rod assembly (14) movably mounted in the mounting shell (10). The first tripping assembly (12) and the second tripping assembly (13) each have a tripped state and a tripping state. When the first tripping assembly (12) and / or the second tripping assembly (13) receives a tripping signal and trips, the operating assembly (11) is driven by the linkage push rod assembly (14) to move, and the contact mechanism (2) is driven by the operating assembly (11) to open. When the first tripping assembly (12) and the second tripping assembly (13) are in the tripped state, the operating assembly (11) can drive the first tripping assembly (12) to move and reset the first tripping assembly (12), and the second tripping assembly (13) remains in the tripped state. When the first tripping assembly (12) and the second tripping assembly (13) are both in the tripped state, the contact mechanism (2) has a closed state and an open state, and when the first tripping assembly (12) and / or the second tripping assembly (13) is in the tripped state, the contact mechanism (2) is in the open state.

2. The isolator with remote opening function according to claim 1, characterized in that, The operating mechanism (1) further comprises a closing and opening assembly (15) connected with the operating assembly (11) and the contact mechanism (2) respectively at the top and the bottom, and a reset button (16) mounted on the mounting shell (10) for pushing the second tripping assembly (13) to reset.

3. The disconnector with remote opening function according to claim 2, characterized in that, The operating assembly (11) comprises a main shaft (110) arranged through the shell cover (101), a handle (111) mounted at the top end of the main shaft (110), a driving member (112) mounted on the main shaft (110), a driven member (113) rotatably mounted on the main shaft (110), an elastic member (114) for connecting the driving member (112) and the driven member (113), a locking member (17) rotatably mounted on the driving member (112), the locking member (17) can lock the driven member (113) to make the driving member (112) and the driven member (113) move synchronously, and the driven member (113) is connected with the closing and opening assembly (15).

4. The disconnector with remote opening function according to claim 3, characterized in that, The locking member (17) comprises a locking pin (171) movably mounted on the driving member (112), a locking buckle (172) movably mounted on the driving member (112) through the locking pin (171), and a locking elastic reset member (173) movably mounted on the locking pin (171) and clamped with the locking buckle (172).

5. The disconnector with remote opening function according to claim 4, characterized in that, The lock catch (172) is provided with a protrusion (174), and the driven member (113) is provided with a groove (1131) corresponding to the protrusion (174).

6. The disconnector with remote opening function according to claim 3, characterized in that, The combination and division assembly (15) comprises a transmission member two (152) connected with the driven member (113), a transmission member one (151) installed on the transmission member two (152) and connected with the contact mechanism (2), an energy storage member (153) arranged between the transmission member one (151) and the transmission member two (152), a locking member one (154) and a locking member two (155) movably installed on the mounting shell (10), and locking elastic return members (156) installed on the locking member two (155) and the locking member one (154); The reset button (16) comprises a button (161) installed on the mounting shell (10) and a button reset member (162) sleeved on the button (161).

7. The disconnector with remote opening function according to claim 6, characterized in that, The transmission member one (151) is provided with a locking groove (1511), and when the end of the locking member one (154) or the end of the locking member two (155) is located in the locking groove (1511), the transmission member one (151) is locked. The transmission member two (152) is provided with an unlocking boss (1521).

8. The disconnector with remote opening function according to any one of claims 1 to 7, characterized in that, The first tripping assembly (12) and the second tripping assembly (13) are electromagnets.

9. The disconnector with remote opening function according to any one of claims 3 to 7, characterized in that, The linkage push rod assembly (14) comprises a push rod pin (141) installed in the mounting shell (10), a linkage push rod (142) movably installed in the mounting shell (10) through the push rod pin (141), and a push rod elastic reset member (143) installed on the push rod pin (141) and clamped with the linkage push rod (142).

10. The disconnector with remote opening function according to claim 9, characterized in that, The linkage push rod (142) comprises a connecting portion (1423), a push arm one (1421) and a push arm two (1422) arranged on both ends of the connecting portion (1423) respectively, the push arm one (1421) corresponds to the first tripping assembly (12), and the push arm two (1422) corresponds to the second tripping assembly (13). The distance between the push arm one (1421) and the first tripping assembly (12) is smaller than the distance between the push arm two (1422) and the second tripping assembly (13). The push arm one (1421) is provided with a reset protrusion (1424), and the driving member (112) is provided with a matching protrusion (1121) corresponding to the reset protrusion (1424).

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