Novel closed type isolating knife switch

Abstract

The invention belongs to the technical field of isolating knife switches, and particularly discloses a novel closed isolating knife switch which comprises a top cover, a connecting cylinder is arranged on the lower portion of the outer wall of the top cover in a threaded mode, umbrella rings are arranged on the outer wall of the connecting cylinder, a top plum blossom tentacle is arranged on the upper portion of the inner wall of the connecting cylinder, and the upper end of the top plum blossom tentacle is connected with the lower end of the top cover. A conductive head is sleeved with the top plum blossom tentacle, a first conductive rod is arranged in the middle of the lower end of the conductive head, a second conductive rod is arranged at the lower end of the first conductive rod, first positioning holes are formed in the middles of the two sides of the first conductive rod, and second positioning holes are formed in the lower portions of the two sides of the second conductive rod. According to the invention, through cooperation of the connecting cylinder, the bottom cylinder, the clamping mechanism and the toggle mechanism, operation and bidirectional rigid mechanical locking of the isolating knife switch in a fully-sealed state are realized, and the problems that a traditional open-type knife switch is easily affected by the environment, low in operation safety and easy in maloperation are fundamentally solved.

Description

Technical Field

[0001] This invention belongs to the field of isolation switch technology, and specifically discloses a novel enclosed isolation switch. Background Technology

[0002] A disconnecting switch, also known as a disconnecting circuit breaker, is a critical primary device in a power system. It is primarily used to reliably physically isolate electrical circuits under no-load or extremely low-current conditions. Its core function is to create a clearly visible "break" with sufficient safety distance during equipment maintenance, line switching, or fault handling, thereby ensuring electrical isolation between maintenance personnel and live parts, and protecting personal and equipment safety. As an indispensable safety device in a power system, the performance of the disconnecting switch directly affects the reliability, operational safety, and maintenance efficiency of the power grid.

[0003] Currently, most widely used traditional disconnecting switches are open-type structures, with their switches, contacts, and other conductive parts completely exposed, posing significant safety shortcomings. They are susceptible to rain, snow, dust, bird nests, and other debris, leading to surface contamination and reduced insulation. The mechanical transmission mechanisms are constantly exposed, causing corrosion and jamming, affecting operational reliability. Some simple enclosed structures suffer from poor sealing, inadequate condensation prevention, and easy accumulation of dust and moisture inside. Furthermore, most traditional products still use a single-piece disconnecting switch structure with limited contact area, prone to overheating and aging, making it difficult to meet the demands of modern power grids for high loads and long-term reliable operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel enclosed isolation switch.

[0005] To achieve the above objectives, the present invention provides a novel enclosed isolation gate, comprising a top cover, a connecting cylinder threaded on the lower part of the outer wall of the top cover, an umbrella ring on the outer wall of the connecting cylinder, a top plum blossom tenon on the upper part of the inner wall of the connecting cylinder, the upper end of the top plum blossom tenon being connected to the lower end of the top cover, a conductive head being sleeved inside the top plum blossom tenon, a first conductive rod being provided at the middle of the lower end of the conductive head, a second conductive rod being provided at the lower end of the first conductive rod, a first positioning hole being provided at the middle of both sides of the first conductive rod, a second positioning hole being provided at the lower part of both sides of the second conductive rod, an installation ring threaded on the lower part of the inner wall of the connecting cylinder, a bottom cylinder threaded on the lower part of the outer wall of the installation ring, a bottom plum blossom tenon on the upper end of the installation ring contacting the outer wall of the second conductive rod, the second conductive rod being located inside the bottom plum blossom tenon and the installation ring, a locking mechanism being provided at the lower end of the second conductive rod for limiting the second conductive rod, and a toggle mechanism being slidably provided on the lower part of the inner wall of the installation ring.

[0006] Preferably, a sealing ring is provided at the upper end of the connecting cylinder, and a placement groove is provided at the lower end of the top cover corresponding to the sealing ring. The sealing ring is located inside the placement groove. The cross-sectional shape above the umbrella ring is inclined. Heat dissipation holes are provided on both sides of the connecting cylinder, and multiple heat dissipation holes are respectively located below the corresponding umbrella ring.

[0007] Preferably, a washer ring is snapped onto the upper end of the bottom cylinder, the upper end of the washer ring is connected to the lower end of the connecting cylinder, a power receiving ring is sleeved on the middle of the outer wall of the mounting ring, and a power receiving rod is provided on one side of the power receiving ring.

[0008] Preferably, the snap-fit ​​mechanism includes a rotating block, the upper end of which is located below the second conductive rod, and a rotating groove is provided at the lower end of the second conductive rod corresponding to the rotating block. The rotating block rotates inside the rotating groove, and a rotating cylinder is provided at the lower end of the rotating block. The rotating cylinder is sleeved on the lower part of the outer wall of the second conductive rod, and a pull ring is provided at the middle of the lower end of the rotating cylinder.

[0009] Preferably, rotating blocks are provided on both sides of the inner wall of the rotating cylinder, and rotating grooves are provided on both sides of the second conductive rod corresponding to the two rotating blocks respectively. The two rotating blocks are located inside the two rotating grooves respectively. The upper end of the rotating cylinder is inserted into the bottom cylinder. Limiting blocks are provided on the upper part of both sides of the bottom cylinder, and limiting openings are provided on both sides of the upper end of the bottom cylinder. The shape of the limiting block is adapted to the shape of the limiting opening.

[0010] Preferably, the actuating mechanism includes a turntable with stabilizing blocks on both sides. A stabilizing groove is formed on the inner wall of the mounting ring corresponding to each of the two stabilizing blocks, and the two stabilizing blocks slide within their respective stabilizing grooves. Guide grooves are formed on both sides of the upper end of the turntable, and these guide grooves are arc-shaped. Slide rails are formed on both sides of the inner wall of the mounting ring below the turntable, and slide rods are slidably mounted on the upper ends of the two slide rails. The two slide rods are located within the two guide grooves. Connecting blocks are formed on the upper parts of the outer walls of the two slide rods. A movable plate is formed at one end of each connecting block, and the movable plate is arc-shaped. Insert blocks are formed on the upper and lower parts of one side of each movable plate, and the shape of the insert blocks matches the shape of the first positioning hole and the second positioning hole. Rotating balls are embedded in the middle of one side of each of the multiple insert blocks.

[0011] Preferably, a lever is provided on one side of the lower end of the turntable, the lower end of the lever extends through to the lower end of the bottom cylinder, a lever block is provided on the lower part of the outer wall of the lever, a limit rod is provided at the lower end of the bottom cylinder corresponding to the lever block, the lever block is sleeved on the outer wall of the limit rod, the lever block slides along the outer wall of the limit rod, a limit spring is provided on one side of the lever block, and the outer wall of the limit spring is sleeved on the outer wall of the limit rod.

[0012] Preferably, the limiting rod is arc-shaped, and mounting blocks are provided at both ends of the limiting rod. The upper ends of the two mounting blocks are connected to the lower end of the bottom cylinder, and one end of the limiting spring is connected to one of the mounting blocks.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This device, through its fully enclosed structural design, completely encapsulates all live components within an insulating shell, fundamentally eliminating phase-to-phase short circuits or grounding accidents caused by external foreign objects (such as bird nests, hanging objects, etc.), and especially ensuring the safety of maintenance personnel.

[0014] The locking mechanism, through the cooperation of the rotating cylinder, the limiting block and the rotating groove, requires the operator to complete a 90-degree rotation to release the axial limit before the push and pull action can be performed. The precise angle of the rotating groove and the rigid cooperation of the limiting block ensure the uniqueness of the operation and a clear feel, while completely eliminating the possibility of accidental opening and closing due to a single action.

[0015] The actuation mechanism efficiently converts the linear movement of the toggle block into the synchronous opposite movement of multiple insert blocks through a turntable, guide groove and slide bar, realizing bidirectional rigid interlocking in the opening and closing states. The precise matching of the insert blocks, the first positioning hole and the second positioning hole ensures a reliable locking state, while significantly improving the efficiency and reliability of state switching. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a cross-sectional view of the device of the present invention; Figure 3 This is a schematic diagram showing the positions of the top and bottom plum blossom tentacles of the present invention; Figure 4 This is a schematic diagram of the connection structure of the conductive head, the first conductive rod, and the second conductive rod of the present invention. Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the separation structure between the conductive head and the top plum blossom tentacles of the present invention; Figure 7 This is a schematic diagram of the installation structure of the connecting cylinder, mounting ring, and bottom cylinder of the present invention; Figure 8 This is a schematic diagram of the connection structure of the turntable, lever, and lever block of the present invention; Figure 9 This is a schematic diagram of the connection structure between the limiting block and the rotating cylinder of the present invention; Figure 10 This is a schematic diagram of the actuation mechanism of the present invention.

[0017] In the diagram: 1. Top cover; 2. Sealing ring; 3. Connecting cylinder; 4. Umbrella ring; 5. Heat dissipation hole; 6. Top plum blossom tentacles; 7. Conductive head; 8. First conductive rod; 9. Second conductive rod; 10. First positioning hole; 11. Second positioning hole; 12. Mounting ring; 13. Bottom cylinder; 14. Washer ring; 15. Electrical connection ring; 16. Electrical connection rod; 17. Bottom plum blossom tentacles; 18. Rotating block; 19. Rotating cylinder; 20. Pull ring; 21. Rotating block; 22. Rotating groove; 23. Limiting block; 24. Limiting port; 25. Turntable; 26. Guide groove; 27. Slide rail; 28. Slide rod; 29. ​​Connecting block; 30. Moving plate; 31. Insertion block; 32. Toggle rod; 33. Toggle block; 34. Limiting rod; 35. Limiting spring. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0020] like Figures 1-10The novel enclosed isolating switch shown includes a top cover 1, which is made of silver-plated copper. A connecting cylinder 3 is threaded onto the lower part of the outer wall of the top cover 1. A sealing ring 2 is located at the upper end of the connecting cylinder 3. A placement groove is provided at the lower end of the top cover 1 corresponding to the sealing ring 2, with the sealing ring 2 located inside the placement groove. The cross-sectional shape above the umbrella ring 4 is inclined. Multiple heat dissipation holes 5 are provided on both sides of the connecting cylinder 3, located below the corresponding umbrella ring 4. A gasket 14 is snapped onto the upper end of the bottom cylinder 13, with the upper end of the gasket 14 connected to the lower end of the connecting cylinder 3. A power-connecting ring 15 is fitted onto the middle of the outer wall of the mounting ring 12, with a power-connecting rod 16 on one side of the power-connecting ring 15. Umbrella rings 4 are provided on the outer wall of the connecting cylinder 3. A top plum blossom-shaped contact 6 is provided on the upper part of the inner wall of the connecting cylinder 3, with the upper end of the top plum blossom-shaped contact 6 connected to the lower end of the top cover 1. A conductive head 7 is fitted inside the hand 6. A first conductive rod 8 is set at the middle of the lower end of the conductive head 7. A second conductive rod 9 is set at the lower end of the first conductive rod 8. A first positioning hole 10 is opened at the middle of both sides of the first conductive rod 8. A second positioning hole 11 is set at the lower part of both sides of the second conductive rod 9. An installation ring 12 is threaded on the lower part of the inner wall of the connecting cylinder 3. A bottom cylinder 13 is threaded on the lower part of the outer wall of the installation ring 12. A bottom plum blossom tentacle 17 is set at the upper end of the installation ring 12, which contacts the outer wall of the second conductive rod 9. The second conductive rod 9 is located inside the bottom plum blossom tentacle 17 and the installation ring 12. A locking mechanism is set at the lower end of the second conductive rod 9. The locking mechanism is used to limit the second conductive rod 9. A toggle mechanism is slidably set at the lower part of the inner wall of the installation ring 12. The top plum blossom tentacle 6 and the bottom plum blossom tentacle 17 are both made of silver-plated copper. Connecting cylinder 3 is used to achieve a sealed connection and load-bearing structure on the upper part of the main housing. Sealing ring 2 ensures a static seal between top cover 1 and connecting cylinder 3, preventing moisture and dust intrusion. Placement groove is used to fix the position of sealing ring 2 and ensure uniform compression. Umbrella ring 4 enhances anti-flashover performance and guides rainwater to slide off quickly. Heat dissipation holes 5 promote air convection inside and outside the housing, balance temperature and humidity, and prevent internal overheating. Gasket ring 14 compensates for the sealing effect between bottom cylinder 13 and connecting cylinder 3. Connecting ring 15 conducts current from top cover 1 and top plum blossom contact 6 through conductive head 7, first conductive rod 8, second conductive rod 9, bottom plum blossom contact 17, and mounting ring 12 to connecting rod 16. Top plum blossom contact 6 serves as the stationary contact during closing, cooperating with conductive head 7 to achieve electrical connection. Conductive head 7 serves as the moving contact. During operation, the rod moves up and down to connect and disconnect the circuit. The first conductive rod 8 rigidly connects the conductive head 7 to the lower transmission mechanism and conducts current. The second conductive rod 9 acts as the main transmission rod, transmitting the action of the bottom operating mechanism to the conductive head 7. The first positioning hole 10 is used to cooperate with the insert block 31 of the toggle mechanism in the open state to achieve mechanical locking. The second positioning hole 11 is used to cooperate with the insert block 31 of the toggle mechanism in the closed state to achieve mechanical locking. The mounting ring 12 is used to fix the connecting cylinder 3 and the bottom cylinder 13. The bottom cylinder 13 forms the lower housing of the equipment, which accommodates and protects the operating mechanism. The locking mechanism is used to limit and unlock the rotation and axial movement of the second conductive rod 9 during operation. The toggle mechanism is used to control the radial movement of the insert block 31 to achieve mechanical locking and unlocking in the open and closed states.

[0021] like Figures 4-9 As shown: The snap-fit ​​mechanism includes a rotating block 18, the upper end of which is located below the second conductive rod 9. A rotating groove is provided at the lower end of the second conductive rod 9 corresponding to the rotating block 18. The rotating block 18 rotates inside the rotating groove. A rotating cylinder 19 is provided at the lower end of the rotating block 18. The rotating cylinder 19 is sleeved on the lower part of the outer wall of the second conductive rod 9. A pull ring 20 is provided at the middle of the lower end of the rotating cylinder 19. Rotating blocks 21 are provided on both sides of the inner wall of the rotating cylinder 19. Rotating grooves 22 are provided on both sides of the second conductive rod 9 corresponding to the two rotating blocks 21. The two rotating blocks 21 are located inside the two rotating grooves 22. The upper end of the rotating cylinder 19 is inserted into the bottom cylinder 13. Limiting blocks 23 are provided on the upper part of both sides of the bottom cylinder 13. Limiting openings 24 are provided on both sides of the upper end of the bottom cylinder 13. The shape of the limiting block 23 matches the shape of the limiting opening 24. The rotating block 18 allows relative rotation between the second conductive rod 9 and the rotating cylinder 19. The rotating groove provides installation and movement space for the rotating block 18, forming a ball joint connection. The rotating cylinder 19 serves as a force transmission component, converting rotation and push-pull actions into control of the second conductive rod 9. The pull ring 20 serves as a manual operation interface, providing a force application point to perform rotation and pull-pull actions. The rotating block 21 serves as a transmission key between the rotating cylinder 19 and the second conductive rod 9, transmitting the axial movement of the rotating cylinder 19 to the second conductive rod 9. The rotating groove 22 provides a guide track for the rotating block 21. The limiting block 23 serves as a mechanical stop for the rotation angle of the rotating cylinder 19. The limiting port 24 is used to accommodate the limiting block 23, restricting the axial movement of the rotating cylinder 19 in the locked state.

[0022] like Figure 8 and Figure 10 As shown: The actuating mechanism includes a turntable 25, with stabilizing blocks on both sides of the turntable 25. A stabilizing groove is formed on the inner wall of the mounting ring 12 corresponding to each of the two stabilizing blocks, allowing the two stabilizing blocks to slide within their respective grooves. Guide grooves 26 are formed on both sides of the upper end of the turntable 25, and these grooves are arc-shaped. Slide rails 27 are provided on both sides of the inner wall of the mounting ring 12 below the turntable 25, with slide rods 28 slidably mounted on the upper ends of each slide rail 27. The slide rods 28 are located within the guide grooves 26. Connecting blocks 29 are provided on the upper parts of the outer walls of each slide rod 28. Moving plates 30 are provided at one end of each connecting block 29, and these moving plates 30 are arc-shaped. Insert blocks 31 are provided on the upper and lower parts of one side of each moving plate 30. The shape of the insert blocks 31 matches the shape of the first positioning hole 10 and the second positioning hole 11. The shape of 1 is made of insulating material. Multiple insert blocks 31 have rotating balls embedded in the middle of one side. A lever 32 is provided on one side of the lower end of the turntable 25. The lower end of the lever 32 extends through to the lower end of the bottom cylinder 13. A lever groove is opened in the bottom cylinder 13 corresponding to the lever 32. The lever 32 slides inside the lever groove. The lever groove is arc-shaped. A lever block 33 is provided on the lower part of the outer wall of the lever 32. A limit rod 34 is provided at the lower end of the bottom cylinder 13 corresponding to the lever block 33. The lever block 33 is sleeved on the outer wall of the limit rod 34 and slides along the outer wall of the limit rod 34. A limit spring 35 is provided on one side of the lever block 33. The outer wall of the limit spring 35 is sleeved on the outer wall of the limit rod 34. The limit rod 34 is arc-shaped. Mounting blocks are provided at both ends of the limit rod 34. The upper ends of the two mounting blocks are connected to the lower end of the bottom cylinder 13. One end of the limit spring 35 is connected to one of the mounting blocks. The turntable 25 converts the arc-shaped oscillation of the lever 32 into the radial linear motion of the insert 31. The stabilizing block is used to maintain the stability of the movement trajectory of the turntable 25 when it rotates, preventing swaying and jamming. The stabilizing groove provides a sliding track for the stabilizing block, limiting the turntable 25 to rotate only axially. The guide groove 26 tracks and controls the radial movement stroke and speed of the slide rod 28 through its arc-shaped contour. The slide rail 27 provides precise radial movement guidance for the slide rod 28, ensuring that the insert 31 is aligned with the positioning hole. The slide rod 28 converts the drive of the guide groove 26 into its own radial sliding. The connecting block 29 connects the slide rod 28 and the moving plate 30, which serves as the insert 31. The mounting base plate drives multiple insert blocks 31 to move synchronously. The insert blocks 31 achieve rigid locking of the opening and closing states by inserting or withdrawing from the first positioning hole 10 and the second positioning hole 11. The sliding friction of the rotating ball between the insert block 31 and the outer wall of the first conductive rod 8 and the second conductive rod 9 is converted into rolling friction, reducing wear and operating force. The toggle groove provides swing space and stroke limit for the toggle lever 32. The limit rod 34 provides sliding guidance for the toggle block 33 and limits its range of motion. The limit spring 35 provides automatic reset force for the toggle block 33 and provides holding force in the locked position to prevent accidental movement. The mounting block rigidly fixes the limit rod 34 to the lower end of the bottom cylinder 13.

[0023] Working principle: The equipment consists of a top cover 1, a connecting cylinder 3 and a bottom cylinder 13 connected in sequence by threads and a sealing ring 2 to form a fully enclosed main shell. The outer wall of the shell is provided with multi-stage umbrella rings 4 to enhance external insulation and anti-fouling capabilities. The heat dissipation holes 5 are located below the umbrella rings 4 to improve the heat dissipation effect inside the connecting cylinder 3. The electrical path consists of a top plum blossom contact 6, a conductive head 7, a first conductive rod 8, and a second conductive rod 9 connected in series. The top plum blossom contact 6 is fixed to the lower part of the top cover 1 and connected to the incoming power supply. The outer wall of the second conductive rod 9 contacts the bottom plum blossom contact 17, which is fixed to the upper end of the mounting ring 12. When the switch is in the closed state, the current flows sequentially through: the top cover 1 (as an input terminal), the top plum blossom contact 6, the conductive head 7, the first conductive rod 8, the second conductive rod 9, the bottom plum blossom contact 17, the mounting ring 12, and the contact ring 15, and finally flows out from the contact rod 16 (as an output terminal).

[0024] By operating the pull ring 20 and the toggle block 33 at the bottom, the second conductive rod 9 and its lower conductive head 7 are controlled to move up and down, so that they are separated from or engaged with the top plum blossom contact 6, thereby realizing the disconnection and connection of the circuit.

[0025] The device is in a reliable closed state. At this time, the conductive head 7 has been tightly inserted into the top plum blossom contact 6, the circuit is connected, and at the same time, the insert block 31 of the toggle mechanism has been inserted into the second positioning hole 11 on the second conductive rod 9, realizing radial mechanical locking and preventing the second conductive rod 9 from moving accidentally.

[0026] When the circuit breaker is tripped, the operator first moves the lever 33 to one side. This action, via an internal connecting rod, drives the turntable 25 to rotate, adjusting the position of the guide groove 26. This causes the slide rod 28 to slide above the slide rail 27, moving the connecting block 29, the moving plate 30, and the insert block 31. This, in turn, causes all the insert blocks 31 to move to both sides, disengaging them from the second positioning hole 11. The operator then rotates the pull ring 20, which rotates 90 degrees. The rotational force is transmitted through the rotating cylinder 19 to the rotating block 21 inside it. The rotating block 21 slides within the rotating groove 22, which has an angle of 90 degrees. The fixed rotating block 21 can only rotate 90 degrees. The two limiting blocks 23 rotate to be directly above the two limiting ports 24, releasing the bottom cylinder 13 from the limiting position of the rotating cylinder 19. Therefore, the second conductive rod 9 is pulled down, causing the first conductive rod 8 and the conductive head 7 at the top to move down together. During the downward movement, the rotating ball on one side of the insert block 31 slides against the outer wall of the first conductive rod 8 and the second conductive rod 9, causing the conductive head 7 to move away from the top plum blossom contact 6, and the circuit is reliably disconnected. Then, the toggle block 33 is released, and the insert block 31 automatically springs into the first positioning hole 10, realizing the mechanical locking in the open state. After the circuit is opened, the distance between the conductive head 7 and the top plum blossom contact 6 exceeds 20 centimeters.

[0027] When the circuit is closed, the equipment is in the open state and the main circuit is disconnected. At this time, the insert 31 of the toggle mechanism has been inserted into the first positioning hole 10 of the second conductive rod 9. The first conductive rod 8 and the second conductive rod 9 are radially locked in the lowest position. The operator moves the toggle block 33 in the designated direction. Through internal transmission, the insert 31 is completely withdrawn from the first positioning hole 10, releasing the radial lock. The operator pushes the pull ring 20 upward, pushing the conductive head 7, the first conductive rod 8 and the second conductive rod 9 upward. The conductive head 7 smoothly inserts into the top plum blossom contact 6, forming a tight electrical contact. The main circuit is turned on. The limit block 23 moves into the bottom cylinder 13 through the limit port 24 and then rotates smoothly 90 degrees. The limit block 23 limits the rotating cylinder 19 to the bottom cylinder 13. During the rotation, the rotating block 21 slides in the rotating groove 22 of the second conductive rod 9. This 90-degree arc trajectory limits the rotation angle. When the toggle block 33 is released, the insert 31 automatically springs into the second positioning hole 11, completing the mechanical locking of the closed state.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A novel enclosed isolating switch, comprising a top cover (1), characterized in that, The lower part of the outer wall of the top cover (1) is threaded with a connecting cylinder (3). The outer wall of the connecting cylinder (3) is provided with umbrella rings (4). The upper part of the inner wall of the connecting cylinder (3) is provided with a top plum blossom tentacle (6). The upper end of the top plum blossom tentacle (6) is connected to the lower end of the top cover (1). A conductive head (7) is sleeved inside the top plum blossom tentacle (6). A first conductive rod (8) is provided in the middle of the lower end of the conductive head (7). A second conductive rod (9) is provided at the lower end of the first conductive rod (8). A first positioning hole (10) is opened in the middle of both sides of the first conductive rod (8). The second conductive rod (9) has two... The lower side is provided with a second positioning hole (11). The lower inner wall of the connecting cylinder (3) is threaded with an installation ring (12). The lower outer wall of the installation ring (12) is threaded with a bottom cylinder (13). The upper end of the installation ring (12) is provided with a bottom plum blossom contact (17) that contacts the outer wall of the second conductive rod (9). The second conductive rod (9) is located inside the bottom plum blossom contact (17) and the installation ring (12). The lower end of the second conductive rod (9) is provided with a snap-fit ​​mechanism. The snap-fit ​​mechanism is used to limit the second conductive rod (9). The lower inner wall of the installation ring (12) is slidably provided with a toggle mechanism.

2. The novel enclosed isolating switch according to claim 1, characterized in that, The upper end of the connecting cylinder (3) is provided with a sealing ring (2), and the lower end of the top cover (1) is provided with a placement groove corresponding to the sealing ring (2). The sealing ring (2) is located inside the placement groove. The cross-sectional shape above the umbrella ring (4) is inclined. Heat dissipation holes (5) are provided on both sides of the connecting cylinder (3), and multiple heat dissipation holes (5) are located below the corresponding umbrella ring (4).

3. The novel enclosed isolating switch according to claim 1, characterized in that, The bottom cylinder (13) is fitted with a washer (14) at its upper end. The upper end of the washer (14) is connected to the lower end of the connecting cylinder (3). The middle part of the outer wall of the mounting ring (12) is fitted with a power receiving ring (15). A power receiving rod (16) is provided on one side of the power receiving ring (15).

4. The novel enclosed isolating switch according to claim 1, characterized in that, The snap-fit ​​mechanism includes a rotating block (18), the upper end of which is located below the second conductive rod (9). The lower end of the second conductive rod (9) is provided with a rotating groove corresponding to the rotating block (18). The rotating block (18) rotates inside the rotating groove. A rotating cylinder (19) is provided at the lower end of the rotating block (18). The rotating cylinder (19) is sleeved on the lower part of the outer wall of the second conductive rod (9). A pull ring (20) is provided at the middle of the lower end of the rotating cylinder (19).

5. The novel enclosed isolating switch according to claim 4, characterized in that, Rotating blocks (21) are provided on both sides of the inner wall of the rotating cylinder (19). Rotating grooves (22) are provided on both sides of the second conductive rod (9) corresponding to the two rotating blocks (21). The two rotating blocks (21) are located inside the two rotating grooves (22). The upper end of the rotating cylinder (19) is inserted into the bottom cylinder (13). Limiting blocks (23) are provided on the upper part of both sides of the bottom cylinder (13). Limiting openings (24) are opened on both sides of the upper end of the bottom cylinder (13). The shape of the limiting block (23) is adapted to the shape of the limiting opening (24).

6. The novel enclosed isolating switch according to claim 1, characterized in that, The actuating mechanism includes a turntable (25), with stabilizing blocks on both sides of the turntable (25). A stabilizing groove is provided on the inner wall of the mounting ring (12) corresponding to each of the two stabilizing blocks. The two stabilizing blocks slide within the stabilizing grooves. Guide grooves (26) are provided on both sides of the upper end of the turntable (25), and the guide grooves (26) are arc-shaped. Slide rails (27) are provided on both sides of the inner wall of the mounting ring (12) below the turntable (25). Slide rods (28) are slidably mounted on the upper ends of both slide rails (27). The slide rods (28) are located inside the two guide grooves (26). A connecting block (29) is provided on the upper part of the outer wall of each of the two slide rods (28). A movable plate (30) is provided at one end of each of the two connecting blocks (29). The movable plate (30) is arranged in an arc shape. An insert (31) is provided on the upper and lower parts of one side of each of the two movable plates (30). The shape of the insert (31) is adapted to the shape of the first positioning hole (10) and the shape of the second positioning hole (11). A rotating ball is embedded in the middle of one side of each of the inserts (31).

7. The novel enclosed isolating switch according to claim 6, characterized in that, A lever (32) is provided on one side of the lower end of the turntable (25). The lower end of the lever (32) extends through to the lower end of the bottom cylinder (13). A lever block (33) is provided on the lower part of the outer wall of the lever (32). A limit rod (34) is provided at the lower end of the bottom cylinder (13) corresponding to the lever block (33). The lever block (33) is sleeved on the outer wall of the limit rod (34). The lever block (33) slides along the outer wall of the limit rod (34). A limit spring (35) is provided on one side of the lever block (33). The outer wall of the limit spring (35) is sleeved on the outer wall of the limit rod (34).

8. The novel enclosed isolating switch according to claim 7, characterized in that, The limiting rod (34) is arc-shaped and has mounting blocks at both ends. The upper ends of the two mounting blocks are connected to the lower end of the bottom cylinder (13), and one end of the limiting spring (35) is connected to one of the mounting blocks.

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