A full-insulation high-voltage disconnector with current monitoring

Abstract

The application discloses a full-insulation high-voltage isolating switch with current monitoring and relates to the technical field of isolating switches.The full-insulation high-voltage isolating switch with current monitoring can drive the contact blade holder to rotate along the corresponding contact seat to realize the opening and closing operation through the cooperation of the transmission plate during the opening and closing operation, can complete the locking through the cooperation of the locking ring and the locking end during the closing process, and can drive the locking assembly to realize automatic unlocking through the force of the transmission plate during the opening process, so that the contact blade holder is forced to complete the opening operation.Compared with the traditional opening and closing mode, on the one hand, the stability after closing can be ensured, and the phenomenon of unstable closing, closing out of position and the like caused by external force can be avoided, and on the other hand, the opening convenience can be ensured, and the operation convenience and use effect of the equipment are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of disconnecting switch technology, specifically to a fully insulated high-voltage disconnecting switch with current monitoring. Background Technology

[0002] High-voltage disconnect switches are important switching devices in the electrical systems of power plants and substations, and must be used in conjunction with high-voltage circuit breakers. They are used to connect, disconnect, or switch lines when high-voltage equipment is under load and voltage is present. Their main functions are to ensure the safety of high-voltage electrical equipment and devices during maintenance and to isolate voltage. They are classified according to installation location as indoor or outdoor, and according to the number of insulating supports as single-post, double-post, and triple-post. Optional equipment is available for each voltage level. Fully insulated high-voltage disconnect switches are switchgear specifically designed for high-voltage power systems. Their core feature is the combination of a fully insulated structure and current monitoring function. All live parts are completely encased in solid insulating material, preventing exposed conductors from contacting the external environment, thereby improving safety and adapting to complex environments. Currently, high-voltage disconnect switches achieve the opening and closing of the moving and stationary contacts by rotating the conductive arm. However, the conductive arm and the moving contact are usually connected by plugging or elastic clamping, which increases friction. This makes the conductive arm prone to detachment or loosening due to external factors, affecting the closing effect. If the conductive arm is locked for closing using a locking device, it becomes inconvenient for the conductive arm to be opened later, affecting the ease of operation. To address this issue, we propose a fully insulated high-voltage disconnect switch with current monitoring to solve the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a fully insulated high-voltage disconnecting switch with current monitoring, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a fully insulated high-voltage disconnect switch with current monitoring, comprising an assembly base plate, a plurality of sets of insulating supports are mounted on the top of the assembly base plate, each set of insulating supports has two supports and a contact seat is fixed on the top of each insulating support, a contact blade frame is connected between two corresponding contact seats, and a locking component is provided between the end of the contact blade frame and the corresponding contact seat for locking and unlocking the contact blade frame and the contact seat; The locking assembly includes a locking end, which is slidably mounted on the top of the contact seat and a spring body is sleeved on the outside of the locking end. A locking ring that cooperates with the locking end is fixedly installed at the end of the contact blade frame. A transmission support is connected to the bottom of the contact blade frame. A transmission assembly is provided between the transmission support and the contact blade frame. The transmission assembly is used to drive the contact blade frame to rotate along the corresponding contact seat to realize the opening and closing operations. At the same time, during the opening process, it drives the contact blade frame and the contact seat to complete the unlocking process. A gate lever is connected to the end of the transmission support. The gate lever is rotatably installed inside the assembly base plate and is used to drive the corresponding transmission support to realize the opening and closing of the gate.

[0005] Preferably, the transmission assembly includes a transmission plate, an end of which is rotatably connected to a rotating shaft and rotatably connected to the inside of the contact blade holder via the rotating shaft, a plurality of return springs being fixed between the end of the transmission plate away from the rotating shaft and the contact blade holder, a connecting piece being rotatably connected between the transmission support and the corresponding transmission plate, a connecting rod being fixedly installed at the end of the transmission plate near the rotating shaft, an unlocking insert being fixedly installed at the end of the connecting rod that cooperates with the locking ring and the locking end, and a sealing outer plate being fixedly installed on the outer side of the contact blade holder.

[0006] Preferably, the locking end has an inclined surface, the top of the contact seat is fixedly mounted with a fixing plate, and the locking end passes through the fixing plate and is slidably connected to it.

[0007] Preferably, a baffle is fixedly installed inside the contact blade holder, the baffle is installed at the bottom of the transmission plate and is in close contact with it, and an extension rod is fixedly installed between the connecting rod and the end of the transmission plate.

[0008] Preferably, the inside of the contact blade holder is provided with a rectangular cavity, and a contact blade is inserted into the rectangular cavity. Connecting posts that fit against the contact blade are fixed on both sides of the inside of the contact blade holder. A moving ring is fixedly installed at the end of the contact blade holder, and a sealing ring is fitted on the outside of the moving ring. A stationary ring that cooperates with the moving ring is fixedly installed on the top of the contact seat.

[0009] Preferably, a pressure plate is slidably connected inside the rectangular cavity, and multiple support springs are fixedly installed between the pressure plate and the inner wall of the rectangular cavity. A sealing end is fixedly installed at the end of the rectangular cavity.

[0010] Preferably, a sealing sheet and a guide rod are fixed to the top of the contact seat, a sliding plate is slidably fitted to the outside of the contact seat, and an elastic sealing sleeve is fixedly installed at the end of the sliding plate.

[0011] Preferably, each of the ends of the multiple transmission support pillars is rotatably connected to a connecting frame, the multiple connecting frames are rotatably sleeved on the outside of the gate lever, and a gate lever is provided between the multiple connecting frames and the gate lever to lock the connecting frame and the gate lever. A pull plate is fixedly installed at the end of the gate lever.

[0012] Preferably, multiple trip frames are slidably installed on the outer side of the trip arm. Multiple slots that mate with the trip frames are opened on the outer side of the trip arm. The installation position of the trip frame is located on one side of the corresponding connecting frame. Multiple through holes are opened inside the connecting frame. Multiple insert rods that mate with the through holes are fixed on the side of the trip frame near the connecting frame.

[0013] Preferably, multiple positioning rings are fixedly installed on the outer side of the trip arm. The installation positions of the multiple positioning rings are respectively located on the outer side of the corresponding trip frame, and magnets are fixed on the side of each positioning ring.

[0014] This invention provides a fully insulated high-voltage disconnecting switch with current monitoring. Compared with the prior art, it has the following advantages: (1) The fully insulated high-voltage disconnect switch with current monitoring, through the cooperation of the contact seat, the contact blade frame and the locking component, can drive the contact blade frame to rotate along the corresponding contact seat to achieve the opening and closing operation during the operation. During the closing process, the locking ring and the locking end can be locked. During the opening process, the locking component can be automatically unlocked by the force of the transmission plate, and the contact blade frame can be forced to complete the opening operation. Compared with the traditional opening and closing method, on the one hand, it can ensure the stability after closing and avoid the phenomenon of unstable closing or incomplete closing caused by external force. On the other hand, it can ensure the convenience of opening and effectively improve the operation convenience and use effect of the equipment.

[0015] (2) The fully insulated high-voltage disconnect switch with current monitoring can drive multiple connecting frames to rotate simultaneously during opening and closing operations by rotating the opening rod and opening frame, thereby traction of the transmission support. This allows multiple contact frames to complete opening and closing operations simultaneously. In addition, through the cooperation of the opening frame, the opening and closing operations can be carried out in sequence according to the closing order of the contact frames. Compared with the traditional closing method, the opening and closing method can be adjusted according to the opening and closing requirements, further improving the applicability and operational safety of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the insulating support column and contact knife holder structure of the present invention; Figure 3 This is a schematic diagram of the contact seat and contact blade holder structure of the present invention; Figure 4 This is a schematic diagram of the transmission plate structure of the present invention; Figure 5 This is a schematic cross-sectional view of the contact blade holder of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the contact seat structure of the present invention; Figure 8 This is a schematic diagram of the gate arm structure of the present invention; Figure 9 For the present invention Figure 8Enlarged structural diagram at point B.

[0017] In the diagram: 1. Assembly base plate; 2. Insulating support; 3. Contact seat; 301. Elastic sealing sleeve; 302. Slide plate; 303. Stationary ring; 304. Sealing plate; 305. Guide rod; 4. Contact blade holder; 401. Sealing outer plate; 402. Locking ring; 403. Contact blade; 4031. Connecting column; 4032. Moving ring; 404. Rectangular cavity; 4041. Pressure plate; 4042. Support spring; 405. Sealing end; 406. Sealing ring; 5. Locking end 501. Head; 502. Fixing plate; 503. Spring body; 504. Inclined surface; 6. Transmission plate; 601. Rotating shaft; 602. Return spring; 603. Baffle; 7. Connecting rod; 701. Unlocking insert; 702. Extension rod; 8. Transmission support; 801. Connecting piece; 9. Connecting frame; 901. Through hole; 10. Opening lever; 1001. Slot; 1002. Pull plate; 11. Opening frame; 1101. Insert rod; 12. Positioning ring; 1201. Magnet. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-9 The present invention provides two technical solutions, specifically including the following embodiments: Example

[0020] In this embodiment of the invention, a fully insulated high-voltage disconnect switch with current monitoring includes an assembly base plate 1. Multiple sets of insulating supports 2 are mounted on the top of the assembly base plate 1. Each set of insulating supports 2 has two supports, and each insulating support 2 has a contact seat 3 fixed on its top. A contact blade holder 4 is connected between two corresponding contact seats 3. A locking component is provided between the end of the contact blade holder 4 and the corresponding contact seat 3 to realize the locking and unlocking between the contact blade holder 4 and the contact seat 3. Specifically, the two contact seats 3 assembled at the ends of each set of insulating supports are divided into moving contacts and stationary contacts, as shown in the reference. Figures 1-9The end of the contact knife frame 4 is rotatably connected to the stationary contact via a rotating shaft (not shown in the figure). The locking component is located between the end of the contact knife frame 4 furthest from the stationary contact and the moving contact. When closing, the contact knife frame 4 rotates along the stationary contact until the end of the contact knife frame 4 furthest from the stationary contact contacts the moving contact and is locked by the locking component, thus completing the closing operation. When opening, the contact knife frame 4 rotates along the stationary contact to unlock the locking component, and the end of the contact knife frame 4 furthest from the stationary contact separates from the moving contact, thus completing the opening operation. In this embodiment of the invention, the locking component includes a locking end 5, which is slidably mounted on the top of the contact seat 3 and a spring body 502 is sleeved on the outside of the locking end 5. A locking ring 402 that cooperates with the locking end 5 is fixedly installed at the end of the contact knife frame 4. A transmission support 8 is connected to the bottom of the contact knife frame 4. A transmission component is provided between the transmission support 8 and the contact knife frame 4. The transmission component is used to drive the contact knife frame 4 to rotate along the corresponding contact seat 3 to realize the opening and closing operations. At the same time, during the opening process, it drives the contact knife frame 4 and the contact seat 3 to complete the unlocking process. Specifically, during the closing operation, refer to... Figures 1-7 The locking ring 402 is fixed to the end of the contact blade holder 4. When the contact blade holder 4 rotates along the stationary contact with the rotating shaft in cooperation with the transmission component, it can drive the locking ring 402 to rotate with the contact blade holder 4 until the locking ring 402 contacts the locking end 5. The end of the locking end 5 is provided with an inclined surface 503. The top of the contact seat 3 is fixedly installed with a fixing plate 501. The locking end 5 passes through the fixing plate 501 and maintains a sliding connection with it. When the locking ring 402 rotates with the contact blade holder 4 to contact the inclined surface 503 at the end of the locking end 5, the locking end 5 can slide along the fixing plate 501 under force, stretching the spring body 502 until the locking end 5 is inserted into the locking ring 402 through the cooperation of the spring body 502, thus completing the locking operation of the contact blade holder 4 and the contact seat 3. The spring body 502 is sleeved on the end of the locking end 5, so that the initial position of the locking end 5 is in the extended state. When the contact knife frame 4 rotates, it can simultaneously drive the locking ring 402 to rotate. When the locking ring 402 contacts the inclined surface 503 of the locking end 5, the locking end 5 can be stretched by force to stretch the spring body 502. After the contact knife frame 4 is closed, the locking ring 402 and the locking end 5 are coaxial. The locking end 5 can be inserted into the locking ring 402 through the cooperation of the spring body 502 to complete the locking. Specifically, during the opening operation, the transmission components work together to apply an upward force to the contact knife frame 4. At this time, the locking end 5 can be retracted by the force, canceling the lock between it and the locking ring 402. As the contact knife frame 4 is subjected to an upward force, it can be rotated along the rotating shaft along the stationary contact until it separates from the moving contact to complete the opening operation.

[0021] Specifically, the end of the transmission support 8 is connected to the opening lever 10. The opening lever 10 is rotatably installed inside the assembly base plate 1 and is used to drive the corresponding transmission support 8 to realize the opening and closing operation. The opening lever 10 is used to drive multiple sets of corresponding transmission supports 8 to run simultaneously and control the opening and closing of the gate.

[0022] In this embodiment of the invention, the transmission assembly includes a transmission plate 6. The end of the transmission plate 6 is rotatably connected to a rotating shaft 601 and is rotatably connected to the inside of the contact blade holder 4 through the rotating shaft 601. A plurality of return springs 602 are fixed between the end of the transmission plate 6 away from the rotating shaft 601 and the contact blade holder 4. A connecting piece 801 is rotatably connected between the transmission support 8 and the corresponding transmission plate 6. A connecting rod 7 is fixedly installed at the end of the transmission plate 6 near the rotating shaft 601. An unlocking insert 701 that cooperates with the locking ring 402 and the locking end 5 is fixedly installed at the end of the connecting rod 7. A sealing outer plate 401 is fixedly installed on the outside of the contact blade holder 4. Specifically, the transmission plate 6 is used to perform transmission operations. It drives the locking assembly to unlock while simultaneously causing the contact knife holder 4 to rotate along the rotating shaft, separating it from the moving contact and completing the opening operation. During operation, as the opening lever 10 rotates, it applies an upward lifting force to the transmission plate 6 via the corresponding transmission support 8, causing the transmission plate 6 to rotate along the rotating shaft 601, thus compressing the reset spring 602. (Refer to...) Figures 1-4 At this time, as the transmission plate 6 rotates, the unlocking insert 701 can be driven to insert into the locking ring 402 through the cooperation of the connecting rod 7. As the unlocking insert 701 is inserted into the locking ring 402, it contacts the inclined surface 503 at the end of the locking end 5, which causes the locking end 5 to slide outward under force and separate from the locking ring 402, thus completing the unlocking. At this time, the upward lifting force on the transmission plate 6 can drive the contact knife frame 4 to rotate along the stationary contact through the cooperation of the rotating shaft, so that the end of the contact knife frame 4 separates from the moving contact, thus completing the opening operation. Similarly, when closing, the opening rod 10 is rotated in the opposite direction and the corresponding transmission support 8 is used to apply traction force to the transmission plate 6. At this time, the transmission plate 6 can be driven to rotate the contact knife frame 4 along the stationary contact until the end of the contact knife frame 4 contacts the moving contact, thus completing the closing operation. During this process, the locking end 5 can be inserted into the locking ring 402 to complete the automatic locking operation. In this embodiment of the invention, a baffle 603 is fixedly installed inside the contact blade holder 4. The baffle 603 is installed at the bottom of the transmission plate 6 and is in close contact with it. An extension rod 702 is fixedly installed between the connecting rod 7 and the end of the transmission plate 6. (Refer to...) Figure 3 The baffle 603 is used to block the transmission plate 6, so that the transmission plate 6 can keep in contact with the baffle 603 when it is subjected to traction force, and to limit the transmission plate 6 from rotating to the maximum angle when it is subjected to traction to keep in contact with the baffle 603, thereby ensuring the transmission effect when closing the circuit. The extension rod 702 is used to increase the connection strength between the connecting rod 7 and the transmission plate 6.

[0023] In this embodiment of the invention, a rectangular cavity 404 is provided inside the contact blade holder 4, and a contact blade 403 is inserted inside the rectangular cavity 404. Connecting posts 4031 that fit together with the contact blade 403 are fixed on both sides of the inside of the contact blade holder 4. A moving ring 4032 is fixedly installed at the end of the contact blade holder 4, and a sealing ring 406 is assembled on the outside of the moving ring 4032. A stationary ring 303 that cooperates with the moving ring 4032 is fixedly installed on the top of the contact seat 3. Specifically, the contact seat 3 is divided into a moving contact and a stationary contact. The stationary ring 303 is fixed at the end of the stationary contact. When the contact blade holder 4 rotates to the closed state, the moving ring 4032 installed at the end of the contact blade holder 4 is in contact with the stationary ring 303. The contact blade 403 is connected to the moving contact and the stationary contact through the connecting post 4031 and the circuit formed by the moving ring 4032 and the stationary ring 303. During operation, the contact blade 403 and the connecting post 4031 are located inside the contact blade holder 4. The moving ring 4032 and the stationary ring 303 form a fully insulated state through the cooperation of the sealing ring 406, ensuring the insulation performance of the equipment during operation. Specifically, the sealing ring 406 is fixed to the end of the contact knife frame 4. During the closing process, as the contact knife frame 4 rotates, it can be sleeved on the outside of the stationary ring 303. At this time, the sealing ring 406 can contact the sealing sheet 304. Both the sealing ring 406 and the sealing sheet 304 are made of existing insulating materials. In this embodiment of the invention, a pressure plate 4041 is slidably connected inside the rectangular cavity 404, and multiple support springs 4042 are fixedly installed between the pressure plate 4041 and the inner wall of the rectangular cavity 404. A sealing end 405 is fixedly installed at the end of the rectangular cavity 404. The setting of the pressure plate 4041 facilitates the replacement of the contact blade 403. The sealing end 405 is used to seal the end of the rectangular cavity 404. When replacing the contact blade 403, it is only necessary to remove the sealing end 405, pull out the contact blade 403, and then replace it with a new contact blade 403. When the new contact blade 403 is inserted into the rectangular cavity 404, the pressure plate 4041 can always be located outside the contact blade 403 and apply pressure to the contact blade 403 through the cooperation of multiple support springs 4042 to ensure the assembly effect. In this embodiment of the invention, a sealing plate 304 and a guide rod 305 are fixedly mounted on the top of the contact seat 3. A sliding plate 302 is slidably mounted on the outer side of the contact seat 3, and an elastic sealing sleeve 301 is fixedly installed at the end of the sliding plate 302. The guide rod 305 is used to guide the operation during the closing process. The end of the contact knife frame 4 is provided with a guide hole that cooperates with the guide rod 305. The guide hole is not marked in the figure. During the closing process of the contact knife frame 4, the guide rod 305 can be inserted into the corresponding guide hole to improve the closing centering. The locking component is used to lock the contact knife frame 4 and reduce the risk of incomplete closing. Specifically, the elastic sealing sleeve 301 is used to improve the sealing between the contact seat 3 and the wire. The elastic sealing sleeve 301 is made of elastic insulating material. When the wire is connected to the end of the contact seat 3, by pulling the elastic sealing sleeve 301, the elastic sealing sleeve 301 can cover the wire and the contact seat 3, thereby improving the insulation performance of the contact seat 3. In addition, the outer surfaces of the contact seat 3 and the contact knife holder 4 and other components are coated with an insulating paint layer to ensure the insulation performance of the equipment.

[0024] Specifically, through the cooperation of the contact seat 3, the contact blade holder 4, and the locking component, during the opening and closing operation, the contact blade holder 4 can be driven to rotate along the corresponding contact seat 3 by the transmission plate 6 to achieve the opening and closing operation. During the closing process, the locking ring 402 can be locked by cooperating with the locking end 5. During the opening process, the locking component can be automatically unlocked by the force applied to the transmission plate 6, and the contact blade holder 4 can be forced to complete the opening operation. Compared with the traditional opening and closing method, on the one hand, it can ensure the stability after closing and avoid the phenomenon of unstable closing or incomplete closing caused by external force. On the other hand, it can ensure the convenience of opening, effectively improving the ease of operation and the effect of use of the equipment.

[0025] Specifically, the contact base 3 is equipped with an optical fiber current sensor. The optical fiber current sensor is an existing module and is not marked in the figure. The current is monitored through the optical fiber current sensor. Utilizing the Faraday magneto-optical effect, the magnetic field generated by the current causes the phase of the polarized light in the optical fiber to shift. The current value is inferred by demodulating the phase change, which will not be elaborated here.

[0026] Example 2: Based on Example 1, the ends of multiple transmission support pillars 8 are rotatably connected to connecting frames 9, and multiple connecting frames 9 are rotatably sleeved on the outside of the gate lever 10. A gate lever 11 is provided between the multiple connecting frames 9 and the gate lever 10 to lock the connecting frames 9 and the gate lever 10. A pull plate 1002 is fixedly installed at the end of the gate lever 10. Specifically, the connecting frame 9 is cam-shaped. After the connecting frame 9 is locked with the opening lever 10 through the cooperation of the opening lever 11, the opening lever 10 rotates, which can simultaneously drive the connecting frame 9 to rotate. The connecting frame 9 can also be used to traction the transmission support 8, and then drive the transmission plate 6 through the cooperation of the connecting piece 801. The transmission support 8 is rotatably connected to the end of the transmission plate 6 through the cooperation of the connecting piece 801. For details, please refer to Figure 1 , Figure 2 , Figure 8 , Figure 9The trip lever 10 is used to control multiple transmission support pillars 8 to apply pressure to the corresponding transmission plate 6 through the connecting piece 801, so as to realize synchronous closing and opening operations. In specific operation, by pulling the pull plate 1002, the trip lever 10 can be driven to rotate. At this time, as the trip lever 10 rotates, multiple connecting frames 9 can be driven to rotate simultaneously through the cooperation of the trip frame 11. Through the rotation of the connecting frame 9, multiple transmission support pillars 8 can be controlled to apply pressure to the corresponding transmission plate 6 through the cooperation of the connecting piece 801, so as to realize synchronous closing and opening operations. In this embodiment of the invention, multiple circuit breaker frames 11 are slidably installed on the outer side of the circuit breaker rod 10. Multiple slots 1001 that cooperate with the circuit breaker frames 11 are opened on the outer side of the circuit breaker rod 10. The installation position of the circuit breaker frame 11 is located on one side of the corresponding connecting frame 9. Multiple through holes 901 are opened inside the connecting frame 9. Multiple insert rods 1101 that cooperate with the through holes 901 are fixed on the side of the circuit breaker frame 11 near the connecting frame 9. In this embodiment of the invention, a plurality of positioning rings 12 are fixedly installed on the outer side of the tripping lever 10. The installation positions of the plurality of positioning rings 12 are respectively located on the outer side of the corresponding tripping frame 11, and magnets 1201 are fixed on the side of each positioning ring 12.

[0027] The trip frame 11 is used to lock and separate the connecting frame 9 and the trip rod 10, so as to facilitate the sequential opening and closing of multiple contact knife frames 4 as needed. In specific operation, the multiple trip frames 11 are first moved away from the corresponding connecting frame 9. At this time, the multiple plug rods 1101 installed on the side of the trip frame 11 can be separated from the through hole 901. The connecting frame 9 and the trip rod 10 are kept in a rotating connection state. When the opening and closing operation needs to be performed in sequence, the corresponding trip frame 11 can be pushed so that the multiple plug rods 1101 are inserted into the corresponding through hole 901. Then, the trip rod 10 is rotated to drive the corresponding contact knife frame 4 to perform the opening and closing operation. Then, the trip frame 11 is pushed outward again to separate the plug rods 1101 from the corresponding through hole 901, and the opening and closing operation is completed. In this way, the opening and closing operation can be realized in sequence, which further improves the applicability of the equipment and the safety of operation. In this embodiment of the invention, the positioning ring 12 and the magnet 1201 are used to perform adsorption positioning of the trip frame 11. When the trip frame 11 is pushed towards the positioning ring 12, the magnet 1201 comes into contact with the trip frame 11, which can perform adsorption on the trip frame 11, so that the trip frame 11 and the connecting frame 9 can remain separated, and the trip frame 11 is prevented from sliding along the trip rod 10 due to external force.

[0028] Specifically, through the cooperation of the trip lever 10 and the trip frame 11, during the opening and closing operation, the trip lever 10 can drive multiple connecting frames 9 to rotate simultaneously, thereby traction of the transmission support 8. This allows multiple contact knife frames 4 to complete the opening and closing operations simultaneously. At the same time, through the cooperation of the trip frame 11, the opening and closing operations can be performed according to the sequence in which the contact knife frames 4 need to be closed. Compared with the traditional closing method, the opening and closing method can be adjusted according to the opening and closing requirements, further improving the applicability and operational safety of the equipment.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] The above embodiments of the present invention are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully insulated high-voltage disconnect switch with current monitoring, comprising an assembly base plate (1), characterized in that: The top of the mounting base plate (1) is equipped with multiple sets of insulating pillars (2). Each set of insulating pillars (2) has two pillars and each insulating pillar (2) has a contact seat (3) fixed on its top. A contact knife frame (4) is connected between the two corresponding contact seats (3). A locking component is provided between the end of the contact knife frame (4) and the corresponding contact seat (3) to realize the locking and unlocking between the contact knife frame (4) and the contact seat (3). The locking assembly includes a locking end (5), which is slidably mounted on the top of the contact seat (3) and a spring body (502) is sleeved on the outside of the locking end (5). A locking ring (402) that cooperates with the locking end (5) is fixedly installed at the end of the contact knife frame (4). A transmission support (8) is connected to the bottom of the contact knife frame (4). A transmission assembly is provided between the transmission support (8) and the contact knife frame (4). The transmission assembly is used to drive the contact knife frame (4) to rotate along the corresponding contact seat (3) to realize the opening and closing operations. At the same time, during the opening process, the contact knife frame (4) and the contact seat (3) are driven to complete the unlocking process. The transmission support (8) is connected to the end of the gate lever (10). The gate lever (10) is rotatably installed inside the assembly base plate (1) to drive the corresponding transmission support (8) to realize the gate opening and closing operations.

2. The fully insulated high-voltage disconnector with current monitoring according to claim 1, characterized in that: The transmission assembly includes a transmission plate (6), with a rotating shaft (601) rotatably connected to the end of the transmission plate (6) and rotatably connected to the inside of the contact knife holder (4) through the rotating shaft (601). Multiple return springs (602) are fixed between the end of the transmission plate (6) away from the rotating shaft (601) and the contact knife holder (4). A connecting piece (801) is rotatably connected between the transmission support (8) and the corresponding transmission plate (6). A connecting rod (7) is fixedly installed at one end of the transmission plate (6) near the rotating shaft (601). An unlocking insert (701) that cooperates with the locking ring (402) and the locking end (5) is fixedly installed at the end of the connecting rod (7). A sealing outer plate (401) is fixedly installed on the outside of the contact knife holder (4).

3. A fully insulated high-voltage disconnector with current monitoring according to claim 2, characterized in that: The locking end (5) has an inclined surface (503) at its end, and a fixing plate (501) is fixedly installed on the top of the contact seat (3). The locking end (5) passes through the fixing plate (501) and is slidably connected to it.

4. A fully insulated high-voltage disconnector with current monitoring according to claim 2, characterized in that: A baffle (603) is fixedly installed inside the contact knife holder (4). The baffle (603) is installed at the bottom of the transmission plate (6) and is in close contact with it. An extension rod (702) is fixedly installed between the connecting rod (7) and the end of the transmission plate (6).

5. A fully insulated high-voltage disconnector with current monitoring according to claim 1, characterized in that: The inside of the contact blade holder (4) is provided with a rectangular cavity (404), and a contact blade (403) is inserted inside the rectangular cavity (404). On both sides of the inside of the contact blade holder (4), there are connecting columns (4031) that fit together with the contact blade (403). A moving ring (4032) is fixedly installed at the end of the contact blade holder (4), and a sealing ring (406) is assembled on the outside of the moving ring (4032). A stationary ring (303) that cooperates with the moving ring (4032) is fixedly installed on the top of the contact seat (3).

6. A fully insulated high-voltage disconnector with current monitoring according to claim 5, characterized in that: A pressure plate (4041) is slidably connected inside the rectangular cavity (404), and multiple support springs (4042) are fixedly installed between the pressure plate (4041) and the inner wall of the rectangular cavity (404). A sealing end (405) is fixedly installed at the end of the rectangular cavity (404).

7. A fully insulated high-voltage disconnector with current monitoring according to claim 5, characterized in that: The top of the contact seat (3) is fixed with a sealing plate (304) and a guide rod (305). The outer side of the contact seat (3) is slidably fitted with a slide plate (302), and the end of the slide plate (302) is fixedly fitted with an elastic sealing sleeve (301).

8. A fully insulated high-voltage disconnector with current monitoring according to claim 1, characterized in that: Each of the multiple transmission support pillars (8) is rotatably connected to a connecting frame (9), and the multiple connecting frames (9) are rotatably sleeved on the outside of the gate rod (10). A gate frame (11) is provided between the multiple connecting frames (9) and the gate rod (10) to lock the connecting frame (9) and the gate rod (10). A pull plate (1002) is fixedly installed at the end of the gate rod (10).

9. A fully insulated high-voltage disconnector with current monitoring according to claim 8, characterized in that: Multiple circuit breaker frames (11) are slidably installed on the outer side of the circuit breaker rod (10). Multiple slots (1001) that cooperate with the circuit breaker frames (11) are opened on the outer side of the circuit breaker rod (10). The installation position of the circuit breaker frame (11) is located on one side of the corresponding connecting frame (9). Multiple through holes (901) are opened inside the connecting frame (9). Multiple plug rods (1101) that cooperate with the through holes (901) are fixed on the side of the circuit breaker frame (11) close to the connecting frame (9).

10. A fully insulated high-voltage disconnector with current monitoring according to claim 9, characterized in that: Multiple positioning rings (12) are fixedly installed on the outside of the trip arm (10). The installation positions of the multiple positioning rings (12) are located on the outside of the corresponding trip frame (11), and magnets (1201) are fixed on the side of each positioning ring (12).

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