Primary and secondary fusion pole-mounted circuit breaker

Abstract

The invention provides a primary and secondary fusion pole-mounted circuit breaker, and the circuit breaker comprises a circuit breaker main body which comprises a pedestal, the top of the pedestal is provided with an integrated solid-sealed polar pole and a voltage sensor, and one side of the pedestal is rotatably connected with an opening and closing drive plate and an energy storage drive plate; the two ends of the opening and closing driving plate are rotationally connected with an opening rotating column and a closing rotating column respectively, the free end of the energy storage driving plate is rotationally connected with an energy storage rotating column, and a bearing frame extending to the position below the base is fixedly installed on the side, close to the opening and closing driving plate, of the base. According to the invention, an existing operation mode that an operator holds an operating rod to be in a vertical shape by hand and then inserts a hook at the end part of the operating rod into the inner sides of hanging holes in an opening and closing driving plate and an energy storage driving plate, so that the operating rod is connected with the opening and closing driving plate and the energy storage driving plate in a hanging manner, and then the operating rod is pulled to carry out opening, energy storage and closing operation on a circuit breaker is replaced; and the butt joint difficulty of the operating rod, the opening and closing driving plate and the energy storage driving plate is reduced.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker equipment technology, specifically to a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] The integrated primary and secondary pole-mounted circuit breaker is a core device in the distribution network for circuit switching control, fault protection, and condition monitoring. It integrates the switching functions of primary equipment with the measurement, control, and communication functions of secondary equipment, enabling precise response to power grid dispatch commands and rapid handling of line faults. It plays a crucial role in ensuring the safe and stable operation of the distribution network and improving power supply reliability. These circuit breakers are typically installed on outdoor utility poles and must meet requirements for interference resistance and weather resistance in complex outdoor environments. They also need to be easy to operate and maintain to meet the rapid operational needs of line maintenance and fault handling. In existing technologies, the opening, energy storage, and closing operations of primary and secondary integrated pole-mounted circuit breakers mainly rely on manual operation using a hand-held lever. The specific operation method is as follows: the operator raises the lever vertically, aligning the hook at the end of the lever with the mounting holes on the circuit breaker's opening / closing drive plate and the energy storage drive plate. By manually adjusting the angle and position of the lever, the hook is inserted into the mounting hole, securing the lever to the drive plate. Subsequently, the operator pulls the lever downwards, using leverage to rotate the opening / closing drive plate or the energy storage drive plate, thus completing the circuit breaker's opening, energy storage, or closing actions. This operation method is currently a common manual control method for circuit breakers in distribution network operation and maintenance. It is simple in structure, requires no additional power source, and has certain applicability in outdoor operation scenarios. However, this operation method has the following drawbacks in actual operation: Because the circuit breaker is installed at a high position, operators need to lift the operating rod from the ground or work platform at a distance. Due to factors such as obstructed view, the weight of the operating rod, and wind, it is difficult to accurately align the hook with the hanging hole. It is often necessary to repeatedly adjust the angle and position of the operating rod to achieve effective docking between the hook and the hanging hole. The docking is difficult and increases the difficulty of opening and closing the circuit breaker. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a primary and secondary integrated pole-mounted circuit breaker, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: Primary and secondary integrated pole-mounted circuit breakers, including: The circuit breaker body includes a base, an integrated solid-sealed pole and a voltage sensor are installed on the top of the base, a tripping and closing drive plate and an energy storage drive plate are rotatably connected to one side of the base, a tripping rotating column and a closing rotating column are rotatably connected to both ends of the tripping and closing drive plate respectively, an energy storage rotating column is rotatably connected to the free end of the energy storage drive plate, and a support frame extending to the bottom of the base is fixedly installed on the side of the base near the tripping and closing drive plate. The transmission component includes a first transmission component, a second transmission component, and a third transmission component mounted on a support frame. The first transmission component is connected to the closing rotary column, the second transmission component is connected to the opening rotary column, and the third transmission component is connected to the energy storage rotary column. The transfer assembly includes a rotating ring, a transfer component, and a rotating block. A vertically oriented rotating ring is rotatably mounted on a support frame. A transfer component is movably passed through the middle of the rotating ring. A rotating block is rotatably connected to the bottom of the transfer component. The output end of the transfer component is used to connect to any one of the first transmission component, the second transmission component, and the third transmission component. The pull-down assembly includes a fixed frame, a fixed tube, a winding tube, a pull rope, a rope release component, and a rope take-up component. A fixed frame is fixedly installed at the bottom of the support frame and on one side of the rotating ring. A horizontal fixed tube is fixedly installed on the fixed frame and directly below the rotating block. A pull rope is fixedly installed at the bottom of the rotating block. A through hole is opened at the top of the fixed tube and communicates with its interior. The bottom end of the pull rope extends movably through the through hole into the fixed tube. A winding tube is rotatably connected to the end of the fixed tube. One end of the pull rope extending into the fixed tube passes through the end of the winding tube and can be wound onto the winding tube. A rope release component and a rope take-up component are installed on the fixed frame. The rope release component is used to release the pull rope wound around the outside of the winding tube. The rope take-up component is used to rotate the winding tube to wind the pull rope. The switching drive assembly is mounted on the support frame and is connected to the transfer component, the rope release component, and the rope take-up component. A handheld adjustment component, which can interface with a switching drive component, is used to enable the switching drive component to enter three drive states: First state: Switching the drive component to drive the rotating ring to rotate; Second state: Switching the drive component to drive the rope release component to release the rope wrapped around the outside of the winding tube; Third state: Switching the drive component to drive the rope winding component to move, the winding tube rotates to wind the pull rope.

[0005] Furthermore: the first transmission component includes a telescopic rod, a connecting plate, and a connecting rope. A vertical telescopic rod is fixedly installed on the top of the support frame. A connecting plate is fixedly installed on the top of the telescopic rod. A connecting rope that is fixedly connected to the closing rotating column is fixedly installed on the top of the connecting plate. The second transmission component includes a telescopic rod 2, a connecting plate 2, and a connecting rope 2. The top of the support frame is symmetrically fixed with vertical telescopic rods 2. The top of the two telescopic rods 2 is fixedly installed with connecting plates 2. The top of the connecting plates 2 is fixedly installed with connecting rope 2 that is fixedly connected to the opening and rotating column. The third transmission component includes a telescopic rod three, a connecting plate three, and a connecting rope three. The top of the support frame is symmetrically fixed with vertical telescopic rod three. The top of the two telescopic rod three is fixedly installed with a connecting plate three. The top of the connecting plate three is fixedly installed with a connecting rope three that is fixedly connected to the energy storage rotating column.

[0006] Furthermore: the transfer component includes a square rod, a limiting plate, a lower pressure plate, and an abutment spring. The square rod moves vertically through the center of the rotating ring, and the cross-section of the square rod fits against the rotating ring. A limiting plate is fixedly installed on the top of the square rod, and the limiting plate is located between connecting plate one, connecting plate two, and connecting plate three. A lower pressure plate is fixedly installed on the top of the limiting plate, which can contact the top of connecting plate one, connecting plate two, and connecting plate three. An abutment spring is sleeved on the outside of the square rod, and the two ends of the abutment spring abut against the rotating ring and the limiting plate, respectively. Furthermore: the rope-releasing component includes a push rod, a push frame, a side baffle, an annular contact block, and a tension spring. The push frame, which is sleeved on the outside of the winding tube, is slidably installed on the bottom wall of the fixed frame in a horizontal direction. A side baffle is fixedly installed on the push frame on the side of the winding tube away from the fixed tube. An annular contact block that can abut against the end of the winding tube is rotatably installed on the side baffle. A push rod that is fixedly connected to the push frame is movably inserted through the fixed frame in a horizontal direction. A tension spring is sleeved on the outside of the push rod. The two ends of the tension spring are fixedly connected to the fixed frame and the push frame, respectively.

[0007] Furthermore: the rope winding component includes a horizontally oriented rotating rod rotatably mounted on a fixed frame, a driven gear coaxially fixed to the winding tube on the side of the pusher frame near the fixed frame, a driving gear coaxially fixed to the rotating rod and meshing with the driven gear, a worm gear coaxially fixed to the end of the rotating rod, a worm gear rotatably mounted on the fixed frame and meshing with the worm gear rotatably mounted, and a driven bevel gear coaxially fixed to the end of the worm gear rotatably mounted.

[0008] Furthermore: the switching drive assembly includes a second worm gear, a second worm, a rotating rod, a first bevel gear assembly, a spring telescopic rod, an adjusting cover, and a drive component. The bottom of the support frame is symmetrically fixed with spring telescopic rods, and the bottom of the two spring telescopic rods is fixedly fitted with an adjusting cover. The adjusting cover has a frustum-shaped longitudinal section, and its bottom has two operating chambers. A vertical rotating rod is rotatably mounted on the support frame, with its bottom end extending through the top of the adjusting cover and into the first operating chamber. A snap-fit ​​hole is provided at the bottom of the rotating rod. A second worm gear is coaxially fixed to the outside of the rotating ring. A second worm gear, combined with the second worm gear, is rotatably mounted on the top of the support frame. The rotating rod and the second worm gear are connected via the first bevel gear assembly. A drive component, which can be connected to the driven bevel gear, is mounted on the adjusting cover to drive the driven bevel gear to rotate. The end of the push rod is arc-shaped and abuts against the outer wall of the adjusting cover.

[0009] Furthermore: the driving component includes a rotating shaft that is vertically oriented and rotatably mounted on the adjusting cover. The bottom of the rotating shaft extends into the second operating cavity and has a second snap-fit ​​hole. The top of the rotating shaft is coaxially fixed with a driving bevel gear that can mesh with the driven bevel gear.

[0010] Furthermore: the handheld adjustment assembly includes a bottom adjustment rod, a middle adjustment rod, and a top adjustment rod. The top of the bottom adjustment rod and the top of the middle adjustment rod are each equipped with a snap-fit ​​component. The bottom of the middle adjustment rod and the bottom of the top adjustment rod are each provided with a mating hole. The snap-fit ​​component can be inserted into the mating hole and snap-fit ​​with it. The top of the top adjustment rod is fixed with a snap-fit ​​block. The snap-fit ​​block can be inserted into snap-fit ​​hole one and fits against the cross-section of the rotating rod. The snap-fit ​​block can also be inserted into snap-fit ​​hole two and fits against the cross-section of the rotating shaft.

[0011] Furthermore: the snap-fit ​​component includes a fixed base, a snap-fit ​​block, and a return spring. A receiving cavity is provided on one side of the fixed base. A horizontally shaped return spring is symmetrically fixed on the fixed base and located in the receiving cavity. Snap-fit ​​blocks extending to the outside of the receiving cavity are fixedly installed at the ends of the two return springs. Snap-fit ​​holes communicating with the docking hole are provided on the middle adjusting rod and the top adjusting rod. When the fixed base is inserted into the docking hole, the outer wall of the fixed base fits against the inner wall of the docking hole, and one end of the snap-fit ​​block extending to the outside of the receiving cavity is inserted into the snap-fit ​​hole.

[0012] Furthermore, the handheld adjustment assembly also includes a support adjustment component, which is used to support and rotate the bottom adjustment rod; The support adjustment component includes a tripod, with the middle of the tripod vertically extending through a support column. A support block is rotatably mounted on the top of the support column, and a plug-in hole is opened on the top of the support block. A plug-in block is fixedly mounted on the bottom of the bottom adjustment rod, and the plug-in block can be inserted into the plug-in hole and engage with the support block. A handwheel is rotatably mounted on the support column, and the rotating end of the handwheel is connected to the support block through a bevel gear assembly.

[0013] This invention provides a primary and secondary integrated pole-mounted circuit breaker. Compared with the prior art, it has the following advantages: 1. This replaces the existing method where operators hold the operating lever vertically, insert the hook at the end into the hanging hole on the opening / closing drive board and the energy storage drive board, so that the operating lever is connected to the opening / closing drive board and the energy storage drive board, and then pull the operating lever to perform the opening, energy storage and closing operations of the circuit breaker. This reduces the difficulty of connecting the operating lever to the opening / closing drive board and the energy storage drive board and reduces the difficulty of operation. 2. In use, rotating the rotating rod drives the worm gear 2 through the bevel gear assembly 1, which in turn drives the rotating ring to rotate; when the adjusting cover moves upward along the spring telescopic rod, it contacts the push rod, which controls the rope-releasing component to release the rope; the cooperation between the driving component and the driven bevel gear controls the rope-retracting component to wind and retract the rope; the spring telescopic rod provides elastic support and reset for the adjusting cover, enabling the switching drive assembly to accurately and stably switch between the three driving states; 3. The support and adjustment components provide stable support for the handheld adjustment assembly. The support column and support block can adjust the height and position of the handheld adjustment assembly. The handwheel drives the support block to rotate through the bevel gear assembly, which facilitates the operator to rotate the handheld adjustment assembly and further improves the convenience and stability of operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of the circuit breaker body of the present invention is shown; Figure 2 A schematic diagram of the mounting structure of the support frame of the present invention is shown; Figure 3 The present invention is shown Figure 2 Enlarged view of point A in the middle; Figure 4 A schematic diagram of the installation structure of the switching drive component of the present invention is shown; Figure 5 A schematic diagram of the structure of the pull-down component of the present invention is shown; Figure 6 The present invention is shown Figure 5 Enlarged view of point B in the middle; Figure 7 A schematic diagram of the handheld adjustment component of the present invention is shown; Figure 8 A schematic diagram showing the connection between the bottom adjusting rod and the support adjusting component of the present invention is shown; Figure 9 The present invention is shown Figure 8 Enlarged view of point C in the middle; Figure 10 A schematic diagram of the mounting structure of the drive component of the present invention is shown; Figure 11 A schematic diagram of the installation structure of the transfer component of the present invention is shown; Figure 12 A schematic diagram of the installation structure of the pull-down component of the present invention is shown; Figure 13 The present invention is shown Figure 12 Enlarged view of point D in the middle; The diagram shows: 1. Circuit breaker body; 11. Base; 111. Bearing frame; 12. Integrated solid-sealed pole; 13. Opening / closing drive plate; 131. Opening rotating column; 132. Closing rotating column; 14. Energy storage drive plate; 141. Energy storage rotating column; 2. Transmission components; 21. First transmission component; 211. Telescopic rod one; 212. Connecting plate one; 213. Connecting rope one; 22. Second transmission component; 221. Telescopic rod two; 222. Connecting plate two; 223. 1. Connecting rope 2; 23. Third transmission component; 231. Telescopic rod 3; 232. Connecting plate 3; 233. Connecting rope 3; 3. Transfer assembly; 31. Rotating ring; 32. Transfer component; 321. Square rod; 322. Limiting plate; 323. Lower pressure plate; 324. Contact spring; 33. Rotating block; 4. Pull-down assembly; 41. Fixing frame; 42. Fixing tube; 43. Winding tube; 44. Pull rope; 45. Rope release component; 451. Push rod; 452. Push frame; 45 3. Annular contact block; 454. Tension spring; 455. Side baffle; 46. Rope winding component; 461. Rotating rod; 462. Driving gear; 463. Worm gear one; 464. Worm one; 465. Driven bevel gear; 5. Switching drive assembly; 51. Worm gear two; 52. Worm two; 53. Rotating rod; 531. Snap-fit ​​hole one; 54. Bevel gear assembly one; 55. Spring telescopic rod; 56. Adjusting cover; 57. Drive component; 571. Rotating shaft; 572. Snap-fit Hole 2; 573, Active bevel gear; 6, Handheld adjustment assembly; 61, Bottom adjustment rod; 611, Insertion block; 62, Middle adjustment rod; 63, Top adjustment rod; 64, Snap-fit ​​component; 641, Fixed base; 642, Snap-fit ​​block; 643, Return spring; 65, Docking hole; 66, Snap-fit ​​block; 67, Snap-fit ​​hole; 68, Support adjustment component; 681, Tripod; 682, Support column; 683, Support block; 684, Handwheel; 685, Bevel gear assembly 2. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0017] Example To address the technical problems in the background section, the following integrated primary and secondary pole-mounted circuit breaker is proposed: Combination Figures 1-13 As shown, the primary and secondary integrated pole-mounted circuit breaker provided by the present invention includes: The circuit breaker body 1 includes a base 11. An integrated solid-sealed pole 12 and a voltage sensor are installed on the top of the base 11. A tripping and closing drive plate 13 and an energy storage drive plate 14 are rotatably connected to one side of the base 11. A tripping rotating column 131 and a closing rotating column 132 are rotatably connected to both ends of the tripping and closing drive plate 13, respectively. An energy storage rotating column 141 is rotatably connected to the free end of the energy storage drive plate 14. A support frame 111 extending to the bottom of the base 11 is fixedly installed on the side of the base 11 near the tripping and closing drive plate 13. The transmission component 2 includes a first transmission component 21, a second transmission component 22 and a third transmission component 23 mounted on the support frame 111. The first transmission component 21 is connected to the closing rotating column 132, the second transmission component 22 is connected to the opening rotating column 131, and the third transmission component 23 is connected to the energy storage rotating column 141. The transfer component 3 includes a rotating ring 31, a transfer component 32, and a rotating block 33. The vertically oriented rotating ring 31 is rotatably mounted on the support frame 111. The transfer component 32 is movably passed through the middle of the rotating ring 31. The rotating block 33 is rotatably connected to the bottom of the transfer component 32. The output end of the transfer component 32 is used to connect to any one of the first transmission component 21, the second transmission component 22, and the third transmission component 23. The pull-down assembly 4 includes a fixed frame 41, a fixed tube 42, a winding tube 43, a pull rope 44, a rope release component 45, and a rope take-up component 46. The fixed frame 41 is fixedly installed at the bottom of the support frame 111 and on one side of the rotating ring 31. A horizontal fixed tube 42 is fixedly installed on the fixed frame 41 and directly below the rotating block 33. A pull rope 44 is fixedly installed at the bottom of the rotating block 33. A through hole is opened at the top of the fixed tube 42 and communicates with its interior. The bottom end of the pull rope 44 extends movably through the through hole into the fixed tube 42. The end of the fixed tube 42 is rotatably connected to the winding tube 43. One end of the pull rope 44 extending into the fixed tube 42 passes through the end of the winding tube 43 and can be wound onto the winding tube 43. The fixed frame 41 is equipped with a rope release component 45 and a rope take-up component 46. The rope release component 45 is used to release the pull rope 44 wound around the outside of the winding tube 43. The rope take-up component 46 is used to make the winding tube 43 rotate to wind the pull rope 44. The switching drive assembly 5 is mounted on the support frame 111 and is connected to the transfer component 32, the rope release component 45 and the rope take-up component 46. The handheld adjustment component 6, which can interface with the switching drive component 5, is used to enable the switching drive component 5 to form three drive states: First state: Switching drive component 5 to drive rotating ring 31 to rotate; Second state: Switching drive component 5 drives the rope release component 45 to release the pull rope 44 wrapped around the outside of the winding tube 43; Third state: Switching drive component 5 drives the rope winding component 46 to move, and the winding tube 43 rotates to wind the pull rope 44.

[0018] The transmission component 2 transmits power to the opening and closing drive board 13 and the energy storage drive board 14. The transfer component 3 switches the transmission component 2 to different transmission paths. The pull-down component 4 controls the release and retraction of the pull rope 44. The handheld adjustment component 6 works with the switching drive component 5 to switch between three drive states, thus facilitating the operator's operation of opening, storing energy and closing the circuit breaker. This replaces the existing method where the operator holds the operating rod vertically and inserts the hook at the end into the hanging hole on the opening and closing drive board and the energy storage drive board to connect the operating rod with the opening and closing drive board and the energy storage drive board, and then pulls the operating rod to perform the opening, storing energy and closing operations of the circuit breaker. This reduces the difficulty of connecting the operating rod with the opening and closing drive board and the energy storage drive board and reduces the difficulty of operation.

[0019] Combination Figures 1-13 As shown, the first transmission component 21 includes a telescopic rod 211, a connecting plate 212, and a connecting rope 213. The top of the support frame 111 is fixedly installed with a vertical telescopic rod 211, the top of the telescopic rod 211 is fixedly installed with a connecting plate 212, and the top of the connecting plate 212 is fixedly installed with a connecting rope 213 that is fixedly connected to the closing rotating column 132. The second transmission component 22 includes a telescopic rod 221, a connecting plate 222, and a connecting rope 223. The top of the support frame 111 is symmetrically fixed with vertical telescopic rods 221. The top of the two telescopic rods 221 is fixedly installed with connecting plates 222. The top of the connecting plates 222 is fixedly installed with a connecting rope 223 that is fixedly connected to the opening rotating column 131. The third transmission component 23 includes a telescopic rod 231, a connecting plate 232, and a connecting rope 233. The top of the support frame 111 is symmetrically fixed with vertical telescopic rods 231. The top of the two telescopic rods 231 is fixedly installed with connecting plates 232. The top of the connecting plates 232 is fixedly installed with a connecting rope 233 that is fixedly connected to the energy storage rotating column 141. Limiting baffles are fixedly installed on the side of the connecting plates 222 and 232 away from the base 11. In use, the power of the opening rotating column 131, the closing rotating column 132, and the energy storage rotating column 141 is transmitted through the combination of telescopic rod 211, connecting plate 212 and connecting rope 213, telescopic rod 221, connecting plate 222 and connecting rope 223, and telescopic rod 231, connecting plate 232 and connecting rope 233, respectively. The structure is simple and the transmission effect is stable.

[0020] Combination Figures 1-13As shown, the transfer component 32 includes a square rod 321, a limiting plate 322, a lower pressure plate 323, and a contact spring 324. The square rod 321 is vertically movably inserted through the center of the rotating ring 31. The cross-section of the square rod 321 fits against the rotating ring 31. The limiting plate 322 is fixedly installed on the top of the square rod 321. The limiting plate 322 is located between the first connecting plate 212, the second connecting plate 222, and the third connecting plate 232. The lower pressure plate, which can contact the top of the first connecting plate 212, the second connecting plate 222, and the third connecting plate 232, is fixedly installed on the top of the limiting plate 322. 323, A contact spring 324 is sleeved on the outside of the square rod 321. The two ends of the contact spring 324 contact the rotating ring 31 and the limiting plate 322 respectively. The rotating block 33 is rotatably installed at the bottom of the square rod 321. In use, the square rod 321 can be rotated by cooperating with the rotating ring 31. The limiting plate 322 and the lower pressure plate 323 are used to contact different connecting plates to switch the transmission path. The elastic force of the contact spring 324 ensures the reset of the limiting plate 322 and the square rod 321, so that the transfer component 32 can accurately transmit power to the corresponding transmission component. Combination Figures 1-13 As shown, the rope-releasing component 45 includes a push rod 451, a push frame 452, a side baffle 455, an annular contact block 453, and a tension spring 454. A push frame 452, sleeved on the outside of the winding tube 43, is slidably mounted on the inner bottom wall of the fixing frame 41. A side baffle 455 is fixedly mounted on the push frame 452 on the side of the winding tube 43 away from the fixing tube 42. An annular contact block 453, which can abut against the end of the winding tube 43, is rotatably mounted on the side baffle 455. The upper part of the fixing frame 41... A push rod 451, which is fixedly connected to the push frame 452, moves horizontally through the push rod 451. A tension spring 454 is sleeved on the outside of the push rod 451. The two ends of the tension spring 454 are fixedly connected to the fixed frame 41 and the push frame 452 respectively. In use, the push rod 451 pushes the push frame 452, which creates a gap between the side baffle 455 and the winding tube 43, allowing the pull rope 44 to fall out from the gap and realize the rope release function. The design of the tension spring 454 realizes the reset of the push frame 452. The structure is simple and the operation is convenient.

[0021] Combination Figures 1-13As shown, the rope winding component 46 includes a horizontally oriented rotating rod 461 rotatably mounted on a fixed frame 41. A driven gear is coaxially fixed to the winding tube 43 on the side of the push frame 452 near the fixed frame 41. A driving gear 462, meshing with the driven gear, is coaxially fixed to the rotating rod 461. A worm gear 463 is coaxially fixed to the end of the rotating rod 461. A worm 464, meshing with the worm gear 463, is rotatably mounted on the fixed frame 41. A driven bevel gear 465 is coaxially fixed to the end of the worm 464. In use, when the worm 464 is rotated, the rotating rod 461 is driven to rotate through the worm gear 463. The winding tube 43 is driven to rotate through the transmission of the driving gear 462 and the driven gear, thereby winding and coiling the rope 44, ensuring the orderly recovery of the rope 44.

[0022] Combination Figures 1-13 As shown, the switching drive assembly 5 includes a second worm gear 51, a second worm 52, a rotating rod 53, a first bevel gear assembly 54, a spring telescopic rod 55, an adjusting cover 56, and a drive component 57. The transmission ratio between the second worm gear 51 and the second worm 52 is 8:1. Spring telescopic rods 55 are symmetrically fixedly installed at the bottom of the support frame 111. Adjusting covers 56 are fixedly installed at the bottom of the two spring telescopic rods 55. The longitudinal section of the adjusting cover 56 is frustum-shaped, and the bottom of the adjusting cover 56 has an operating chamber 1 and an operating chamber 2. A vertical rotating rod 53 is rotatably installed on the support frame 111. The bottom end of the rotating rod 53 movably passes through the top of the adjusting cover 56 and extends into the first operating chamber. A snap-fit ​​hole 531 is opened at the bottom of the rotating rod 53. The second worm gear 51 is coaxially fixed to the outside of the rotating ring 31. A worm gear combined with the second worm gear 51 is rotatably installed on the top of the support frame 111. The rotating rod 53 and the worm gear 52 are connected by a bevel gear assembly 54. The adjusting cover 56 is equipped with a drive component 57 that can be connected to the driven bevel gear 465. It is used to drive the driven bevel gear 465 to rotate. The end of the push rod 451 is arc-shaped and abuts against the outer wall of the adjusting cover 56. In use, the rotating rod 53 is rotated, which drives the worm gear 52 to rotate through the bevel gear assembly 54, thereby driving the rotating ring 31 to rotate. When the adjusting cover 56 moves upward along the spring telescopic rod 55, it abuts against the push rod 451, thereby controlling the rope releasing component 45 to release the rope. The cooperation between the drive component 57 and the driven bevel gear 465 controls the rope winding component 46 to wind and wind the rope. The spring telescopic rod 55 provides elastic support and reset for the adjusting cover 56, so that the switching drive component 5 can accurately and stably switch between the three driving states.

[0023] Combination Figures 1-13As shown, the driving component 57 includes a rotating shaft 571 that is vertically oriented and rotatably mounted on the adjusting cover 56. The bottom of the rotating shaft 571 extends into the second operating cavity and has a second snap-fit ​​hole 572. The top of the rotating shaft 571 is coaxially fixed with a driving bevel gear 573 that can mesh with the driven bevel gear 465. The inner wall of the first operating cavity is inclined along the through-hole of the rotating rod 53, and the inner wall of the second operating cavity is inclined along the through-hole of the rotating shaft 571. The top of the support frame 111 is fixedly mounted with a protective cover sleeved on the outside of its top component by screws. In use, when the rotating shaft 571 rotates, the meshing of the driving bevel gear 573 and the driven bevel gear 465 can drive the worm gear 464 to rotate, thereby driving the winding tube 43 to rotate, realizing the winding and coiling of the pull rope 44, and providing a reliable power transmission path for the rope coiling operation.

[0024] Combination Figures 1-13 As shown, the handheld adjustment assembly 6 includes a bottom adjustment rod 61, a middle adjustment rod 62, and a top adjustment rod 63. A snap-fit ​​component 64 is installed at the top of both the bottom adjustment rod 61 and the middle adjustment rod 62. A mating hole 65 is provided at the bottom of both the middle adjustment rod 62 and the top adjustment rod 63. The snap-fit ​​component 64 can be inserted into and snap-fitted into the mating hole 65. A snap-fit ​​block 66 is fixedly provided at the top of the top adjustment rod 63. The snap-fit ​​block 66 can be inserted... The locking block 66 is inserted into the locking hole 572 and fits with the cross section of the rotating rod 53. The locking block 66 can be inserted into the locking hole 572 and fits with the cross section of the rotating shaft 571. In use, it is spliced ​​according to the height of the circuit breaker. The locking block 66 of the top adjusting rod 63 can be connected with the locking holes of the rotating rod 53 and the rotating shaft 571. The operator can lift and rotate the bottom adjusting rod 61 to realize the connection with the switching drive assembly 5 and the switching of the drive state. The operation is convenient.

[0025] Combination Figures 1-13 As shown, the locking component 64 includes a fixed base 641, a locking block 642, and a return spring 643. A receiving cavity is provided on one side of the fixed base 641. Horizontally oriented return springs 643 are symmetrically fixed on the fixed base 641 and located within the receiving cavity. The ends of the two return springs 643 are fixedly installed with locking blocks 642 extending to the outside of the receiving cavity. The middle adjusting rod 62 and the top adjusting rod 63 are both provided with locking holes 67 that communicate with the docking hole 65. When the fixed base 641 is inserted into the docking hole 65, the outer wall of the fixed base 641 fits against the inner wall of the docking hole 65, and one end of the locking block 642 extending to the outside of the receiving cavity is inserted into the locking hole 67. When the fixed base 641 is inserted into the docking hole 65, the locking block 642 is inserted into the locking hole 67 under the action of the return spring 643, realizing a firm connection between the bottom adjusting rod 61, the middle adjusting rod 62, and the top adjusting rod 63, ensuring the stability and reliability of the handheld adjusting component 6 during use.

[0026] Combination Figures 1-13 As shown, the handheld adjustment assembly 6 also includes a support adjustment component 68, which is used to support and rotate the bottom adjustment rod 61; The support adjustment component 68 includes a tripod 681, the middle of which vertically extends through a support column 682. A screw threaded through the tripod 681 is used to lock the support column 682. A support block 683 is rotatably mounted on the top of the support column 682, and a insertion hole is provided on the top of the support block 683. A insertion block 611 is fixedly mounted on the bottom of the bottom adjustment rod 61, and the insertion block 611 can be inserted into the insertion hole and engages with the support block 683. A handwheel 684 is rotatably mounted on the upper part of the device. The rotating end of the handwheel 684 is connected to the support block 683 through the bevel gear assembly 685. The tripod 681 provides stable support for the handheld adjustment component 6. The support column 682 and the support block 683 can adjust the height and position of the handheld adjustment component 6. The handwheel 684 drives the support block 683 to rotate through the bevel gear assembly 685, which facilitates the operator to rotate the handheld adjustment component 6 and further improves the convenience and stability of operation.

[0027] Working principle and usage process of this invention: When it is necessary to disconnect the circuit breaker during circuit maintenance: S1. When assembling the handheld adjustment component 6: Press the latch 642 on the bottom adjusting rod 61 to retract it into the receiving cavity. The return spring 643 deforms under force, inserting the fixing seat 641 into the mating hole 65. When the latch 642 moves to the inside of the mating hole 65, the pressing force on the latch 642 is released, allowing the fixing seat 641 to continue moving into the mating hole 65. When the bottom adjusting rod 61 and the middle adjusting rod 62 are in contact, the return spring 643 returns to its natural state, pushing the latch 642 into the latching hole 67, thus completing the splicing of the bottom adjusting rod 61 and the middle adjusting rod 62. The number of middle adjusting rods 62 is rotated according to the height of the circuit breaker. Similarly, multiple middle adjusting rods 62 are spliced ​​sequentially, and then the top adjusting rod 63 is spliced ​​with the middle adjusting rods 62 at the end. S2. Adjust the position of the lower pressure plate 323 to be above the connecting plate 222: The operator holds the bottom adjusting rod 61 vertically and inserts the top adjusting rod 63 into the operating cavity. When the locking block 66 at the top of the top adjusting rod 63 contacts the inner wall of the operating cavity, the locking block 66 slides along the inner wall of the operating cavity to the locking hole 531. At this time, the operator lifts the bottom adjusting rod 61 and rotates it. The locking block 66 engages with the rotating rod 53, causing the rotating rod 53 to rotate. This drives the worm gear 52 to rotate through the bevel gear assembly 54, drives the rotating ring 31 to rotate through the worm wheel 51, and drives the limiting plate 322 to rotate through the square rod 321, causing the lower pressure plate 323 to abut against the limiting baffle of the connecting plate 222. S3. When releasing the rope and disconnecting the switch: The operator holds the bottom adjusting rod 61 and moves its end into the second operating cavity. Then, the operator lifts the bottom adjusting rod 61. When the locking block 66 contacts the inner side wall of the second operating cavity, it slides along the inner side wall of the second operating cavity to the locking hole 572. The operator lifts the bottom adjusting rod 61 and rotates it. The locking block 66 engages with the rotating rod 53. The operator continues to lift the bottom adjusting rod 61 and pushes the adjusting cover 56 to move upward along the two spring telescopic rods 55. When the adjusting cover 56 moves upward, it abuts against the end of the push rod 451 and pushes the push rod 451 to move on the fixed frame 41. The push rod 451 pushes the push frame 452 to slide, creating a gap between the side baffle 455 and the winding tube 43. During the displacement of the push frame 452, it abuts against the pull rope 44 wound on the outside of the winding tube 43 and pushes the wound pull rope 44 to move towards the gap and fall off from the gap, thus achieving the effect of releasing the pull rope 44. The operator can then remove the tripod 681 and place it below the bottom adjusting rod 61. Turn the screw to release the locking state between the tripod 681 and the support column 682, pull up the support column 682, so that the insertion block 611 at the bottom of the bottom adjusting rod 61 is inserted into the insertion hole at the top of the support block 683, and the support block 683 is in contact with the bottom of the bottom adjusting rod 61. Turn the screw in the opposite direction to lock the tripod 681 and the support column 682, and support and position the hand-held adjusting component 6. The operator can pull down the pull rope 44 to drive the rotating block 33 to press down. The square rod 321 moves downward within the rotating ring 31. Through the limit plate 322, it drives the pressing plate 323 to abut against the top of the connecting plate 222, causing the connecting plate 222 to move down along the two telescopic rods 221. Through the connecting rope 223, it drives the tripping rotating column 131 to move down. At this time, the tripping rotating column 131 rotates on the tripping and closing drive plate 13, causing the tripping and closing drive plate 13 to rotate downward along the direction of the tripping rotating column 131, thereby realizing the tripping and disconnection of the circuit breaker. When closing the circuit breaker after circuit maintenance is completed: S1, Energy Storage: Rotate the screw to release the locking state between the tripod 681 and the support column 682, remove the tripod 681, and the operator holds the bottom adjusting rod 61 to insert the top adjusting rod 63 into the operating cavity. Lift the bottom adjusting rod 61 and rotate it. The locking block 66 engages with the rotating rod 53, causing the rotating rod 53 to rotate, so that the lower pressure plate 323 abuts against the limiting baffle of the connecting plate 3 232. The operator holds the bottom adjusting rod 61 and moves its end into the operating chamber 2. The operator continuously raises the bottom adjusting rod 61 to push the adjusting cover 56 upward along the two spring telescopic rods 55, creating a gap between the side baffle 455 and the winding tube 43. The operator continuously pulls down the pull rope 44, which drives the lower pressure plate 323 to contact the top of the connecting plate 3 232 through the limit plate 322. The connecting plate 3 232 moves down along the two telescopic rods 3 231, and drives the energy storage rotating column 141 to move down through the connecting rope 3 233. The energy storage rotating column 141 rotates on the energy storage drive plate 14, causing the energy storage drive plate 14 to rotate downward along the direction of the energy storage rotating column 141, thus closing the circuit breaker and storing energy. S2, closing the circuit: The operator holds the bottom adjusting rod 61 and inserts the top adjusting rod 63 into the operating cavity. The operator lifts the bottom adjusting rod 61 and rotates it. The locking block 66 engages with the rotating rod 53, causing the rotating rod 53 to rotate. The operator rotates the bottom adjusting rod 61 two turns so that the lower pressure plate 323 contacts the top of the connecting plate 212. The operator holds the bottom adjusting rod 61 and moves its end into the second operating cavity. At the same time, the operator rotates the bottom adjusting rod 61 so that the locking block 66 is inserted into the second locking hole 572 and locked with the rotating shaft 571. The operator continues to lift the bottom adjusting rod 61 to push the adjusting cover 56 to move upward along the two spring telescopic rods 55. During this period, the push rod 451 pushes the push frame 452 to slide, so that a gap is created between the side baffle 455 and the winding tube 43. The operator pulls down the rope 44, which causes the limit plate 322 to drive the pressure plate 323 to contact the top of the connecting plate 212. The connecting plate 212 moves down along the telescopic rod 211, and the connecting rope 213 drives the closing rotating column 132 to move down. The closing rotating column 132 rotates on the opening and closing drive plate 13, causing the opening and closing drive plate 13 to rotate downward along the direction of the closing rotating column 132, thereby closing the circuit breaker. S3, winding up the rope: The operator slowly lowers the bottom adjusting rod 61, and the spring telescopic rod 55 returns to its natural state, applying a resisting force to the adjusting cover 56, thereby applying a resisting force to the bottom adjusting rod 61. During this process, by rotating the bottom adjusting rod 61, the driving bevel gear 573 meshes with the driven bevel gear 465. When the adjusting cover 56 returns to its original position, the resisting force on the adjusting cover 56 is zero, and the operator cannot feel any resisting force. The tripod 681 is placed below the bottom adjusting rod 61, and the support column 682 is pulled up, so that the insertion block 611 at the bottom of the bottom adjusting rod 61 is inserted into the top of the support block 683. The plug hole is inserted into the bottom, and the support block 683 abuts against the bottom of the bottom adjusting rod 61. The screw is rotated in the opposite direction to lock the tripod 681 and the support column 682. The hand adjustment component 6 is supported and positioned. During this time, the tension spring 454 returns to its natural state, causing the pusher 452 to slide and reset outside the winding tube 43. The annular abutment block 453 moves towards the winding tube 43. At this time, the winding tube 43 and the annular abutment block 453 form a clamping and positioning state for the pull rope 44. The operator rotates the handwheel 684, which drives the support block 683 to the support column 682 through the bevel gear assembly 685. Rotating the upper part allows the hand-held adjustment component 6 to drive the rotating shaft 571 to rotate, which in turn drives the worm gear 464 to rotate via the driving bevel gear 573 and driven bevel gear 465. This, in turn, drives the winding tube 43 to rotate via the worm gear 463, rotating rod 461, driving gear 462, and driven gear. At this time, the annular contact block 453 rotates synchronously on the push frame 452, and the pull rope 44 rotates around the winding tube 43, thus winding and coiling the pull rope 44 to achieve the purpose of coiling the pull rope 44. Therefore, during circuit maintenance, when it is necessary to open or close the circuit breaker, the operation... Personnel can use the handheld adjustment component 6 to alternately insert it directly into the operating chamber 1 and operating chamber 2 from top to bottom, and switch the driving states of the three components of the switching drive component to complete the circuit breaker's opening, energy storage, and closing operations. This replaces the existing method where the operator holds the operating rod vertically, inserts the hook at its end into the hanging hole on the opening / closing drive plate and the energy storage drive plate, and then pulls the operating rod to perform the circuit breaker's opening, energy storage, and closing operations. This method reduces the difficulty of connecting the operating rod to the opening / closing drive plate and the energy storage drive plate.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The above embodiments 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 primary and secondary integrated pole-mounted circuit breaker, characterized in that: include: The circuit breaker body includes a base, an integrated solid-sealed pole and a voltage sensor are installed on the top of the base, a tripping and closing drive plate and an energy storage drive plate are rotatably connected to one side of the base, a tripping rotating column and a closing rotating column are rotatably connected to both ends of the tripping and closing drive plate respectively, an energy storage rotating column is rotatably connected to the free end of the energy storage drive plate, and a support frame extending to the bottom of the base is fixedly installed on the side of the base near the tripping and closing drive plate. The transmission component includes a first transmission component, a second transmission component, and a third transmission component mounted on a support frame. The first transmission component is connected to the closing rotary column, the second transmission component is connected to the opening rotary column, and the third transmission component is connected to the energy storage rotary column. The transfer assembly includes a rotating ring, a transfer component, and a rotating block. A vertically oriented rotating ring is rotatably mounted on a support frame. A transfer component is movably passed through the middle of the rotating ring. A rotating block is rotatably connected to the bottom of the transfer component. The output end of the transfer component is used to connect to any one of the first transmission component, the second transmission component, and the third transmission component. The pull-down assembly includes a fixed frame, a fixed tube, a winding tube, a pull rope, a rope release component, and a rope take-up component. A fixed frame is fixedly installed at the bottom of the support frame and on one side of the rotating ring. A horizontal fixed tube is fixedly installed on the fixed frame and directly below the rotating block. A pull rope is fixedly installed at the bottom of the rotating block. A through hole is opened at the top of the fixed tube and communicates with its interior. The bottom end of the pull rope extends movably through the through hole into the fixed tube. A winding tube is rotatably connected to the end of the fixed tube. One end of the pull rope extending into the fixed tube passes through the end of the winding tube and can be wound onto the winding tube. A rope release component and a rope take-up component are installed on the fixed frame. The rope release component is used to release the pull rope wound around the outside of the winding tube. The rope take-up component is used to rotate the winding tube to wind the pull rope. The switching drive assembly is mounted on the support frame and is connected to the transfer component, the rope release component, and the rope take-up component. A handheld adjustment component, which can interface with a switching drive component, is used to enable the switching drive component to enter three drive states: First state: Switching the drive component to drive the rotating ring to rotate; Second state: Switching the drive component to drive the rope release component to release the rope wrapped around the outside of the winding tube; Third state: Switching the drive component to drive the rope winding component to move, the winding tube rotates to wind the pull rope.

2. The primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The first transmission component includes a telescopic rod, a connecting plate, and a connecting rope. A vertical telescopic rod is fixedly installed on the top of the support frame. A connecting plate is fixedly installed on the top of the telescopic rod. A connecting rope that is fixedly connected to the closing rotating column is fixedly installed on the top of the connecting plate. The second transmission component includes a telescopic rod 2, a connecting plate 2, and a connecting rope 2. The top of the support frame is symmetrically fixed with vertical telescopic rods 2. The top of the two telescopic rods 2 is fixedly installed with connecting plates 2. The top of the connecting plates 2 is fixedly installed with connecting rope 2 that is fixedly connected to the opening and rotating column. The third transmission component includes a telescopic rod three, a connecting plate three, and a connecting rope three. The top of the support frame is symmetrically fixed with vertical telescopic rod three. The top of the two telescopic rod three is fixedly installed with a connecting plate three. The top of the connecting plate three is fixedly installed with a connecting rope three that is fixedly connected to the energy storage rotating column.

3. The primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: The transfer component includes a square rod, a limiting plate, a lower pressure plate, and a contact spring. The square rod moves vertically through the center of the rotating ring, and the cross-section of the square rod fits against the rotating ring. A limiting plate is fixedly installed on the top of the square rod, and the limiting plate is located between connecting plate one, connecting plate two, and connecting plate three. A lower pressure plate is fixedly installed on the top of the limiting plate, which can contact the top of connecting plate one, connecting plate two, and connecting plate three. A contact spring is sleeved on the outside of the square rod, and the two ends of the contact spring abut against the rotating ring and the limiting plate, respectively.

4. The primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The rope-releasing component includes a push rod, a push frame, a side baffle, an annular contact block, and a tension spring. The push frame, which is slidably mounted on the bottom wall of the fixed frame in a horizontal direction and sleeved on the outside of the winding tube, is fixedly mounted on the push frame on the side of the winding tube away from the fixed tube. An annular contact block, which can abut against the end of the winding tube, is rotatably mounted on the side baffle. The push rod, which is fixedly connected to the push frame, moves horizontally through the fixed frame. A tension spring is sleeved on the outside of the push rod, and the two ends of the tension spring are fixedly connected to the fixed frame and the push frame, respectively.

5. The primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that: The rope winding component includes a horizontally rotatable rod mounted on a fixed frame, a driven gear coaxially fixed to the winding tube on the side of the pusher frame near the fixed frame, a driving gear coaxially fixed to the rod and meshing with the driven gear, a worm gear coaxially fixed to the end of the rod, a worm gear rotatably mounted on the fixed frame and meshing with the worm gear worm, and a driven bevel gear coaxially fixed to the end of the worm gear worm.

6. The primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: The switching drive assembly includes a second worm gear, a second worm, a rotating rod, a first bevel gear assembly, a spring telescopic rod, an adjusting cover, and a drive component. The bottom of the support frame is symmetrically fixed with spring telescopic rods. An adjusting cover is fixedly installed at the bottom of the two spring telescopic rods. The adjusting cover has a frustum-shaped longitudinal section and two operating chambers at its bottom. A vertical rotating rod is rotatably mounted on the support frame. The bottom end of the rotating rod extends through the top of the adjusting cover and into the first operating chamber. A snap-fit ​​hole is provided at the bottom of the rotating rod. A second worm gear is coaxially fixed to the outside of the rotating ring. A second worm gear, combined with the second worm gear, is rotatably mounted on the top of the support frame. The rotating rod and the second worm gear are connected via the first bevel gear assembly. A drive component, which can be connected to the driven bevel gear, is installed on the adjusting cover to drive the driven bevel gear to rotate. The end of the push rod is arc-shaped and abuts against the outer wall of the adjusting cover.

7. The primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that: The driving component includes a rotating shaft that is vertically oriented and rotatably mounted on the adjustment cover. The bottom of the rotating shaft extends into the second operating cavity and has a second snap-fit ​​hole. The top of the rotating shaft is coaxially fixed with a driving bevel gear that can mesh with the driven bevel gear.

8. The primary and secondary integrated pole-mounted circuit breaker according to claim 7, characterized in that: The handheld adjustment assembly includes a bottom adjustment rod, a middle adjustment rod, and a top adjustment rod. The top of the bottom adjustment rod and the top of the middle adjustment rod are each equipped with a snap-fit ​​component. The bottom of the middle adjustment rod and the bottom of the top adjustment rod are each provided with a mating hole. The snap-fit ​​component can be inserted into the mating hole and snap-fitted into it. The top of the top adjustment rod is fixed with a snap-fit ​​block. The snap-fit ​​block can be inserted into snap-fit ​​hole one and fits against the cross-section of the rotating rod. The snap-fit ​​block can also be inserted into snap-fit ​​hole two and fits against the cross-section of the rotating shaft.

9. The primary and secondary integrated pole-mounted circuit breaker according to claim 8, characterized in that: The locking component includes a fixed base, a locking block, and a return spring. A receiving cavity is provided on one side of the fixed base. A horizontally shaped return spring is symmetrically fixed on the fixed base and located in the receiving cavity. The ends of the two return springs are fixedly installed with locking blocks extending to the outside of the receiving cavity. The middle adjusting rod and the top adjusting rod are both provided with locking holes that communicate with the docking hole. When the fixed base is inserted into the docking hole, the outer side wall of the fixed base fits against the inner side wall of the docking hole, and the end of the locking block extending to the outside of the receiving cavity is inserted into the locking hole.

10. The primary and secondary integrated pole-mounted circuit breaker according to claim 8, characterized in that: The handheld adjustment assembly also includes a support adjustment component, which is used to support and rotate the bottom adjustment rod. The support adjustment component includes a tripod, with the middle of the tripod vertically extending through a support column. A support block is rotatably mounted on the top of the support column, and a plug-in hole is opened on the top of the support block. A plug-in block is fixedly mounted on the bottom of the bottom adjustment rod, and the plug-in block can be inserted into the plug-in hole and engage with the support block. A handwheel is rotatably mounted on the support column, and the rotating end of the handwheel is connected to the support block through a bevel gear assembly.

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