A remote control circuit breaker operating mechanism for power maintenance

Abstract

The application belongs to the technical field of electric power engineering, and discloses a remote control type circuit breaker operating mechanism for electric power maintenance, which comprises a protection cabin assembly, and further comprises a composite assembly installed in the interior of the protection cabin assembly, and a control cabin assembly fixedly connected to the top of the protection cabin assembly. Through the setting of the composite assembly, the rotation motor operates in synchronization with the center gear and the buckle mechanism through the coupling, so that the cylindrical tenon completes the rotary operation of the circuit breaker knob, and the center gear engages with the rack plate to realize the button pressing action. The two sets of execution actions are synchronously output, and only by adjusting the whole machine placing orientation, the knob type and button type circuit breakers can be respectively adapted, one set of mechanism is compatible with two types of equipment, the cumbersome steps of replacing special tooling are omitted, the overall structure is simplified, the equipment volume is compressed, the operation process is simple and easy to understand, one machine is used for multiple purposes, and the application range of the equipment is greatly expanded.

Description

Technical Field

[0001] This invention belongs to the field of power engineering technology, specifically a remote-controlled circuit breaker operating mechanism for power maintenance. Background Technology

[0002] In the field of power distribution networks of 35kV and below, integrated monitoring and protection switchgear is widely used for the operation monitoring, logic protection and control management of switchgear. This type of device integrates monitoring, protection and control functions. When the integrated monitoring and protection device malfunctions, in order to avoid safety accidents such as tripping and short circuits caused by the faulty operation of the power grid, it is usually impossible to carry out maintenance under power. It is necessary to isolate the faulty equipment in time to prevent the power system from falling into an unprotected operation state, thereby avoiding the risk of large-scale power grid operation.

[0003] Currently, in the absence of dedicated remote auxiliary operation equipment, the operation and maintenance system generally adopts manual on-site switching operations to complete circuit breaker tripping and isolation operations, thereby ensuring the standardization of distribution network fault handling. However, existing technologies still have many drawbacks and shortcomings in practical applications, which seriously restrict the efficiency and safety of distribution network fault repair. First, traditional integrated measurement and protection devices lack remote control capabilities after a fault, and cannot remotely determine the actual operating status of the circuit breaker. They can only rely on on-site operations by operation and maintenance personnel. Manual on-site switching operations pose safety hazards such as electric shock, misoperation, and working at height, significantly increasing the risk of personal injury and grid misoperation. Second, the overall structure of the remote auxiliary operation equipment currently available on the market is complex and has a low degree of integration. Therefore, the operation steps are cumbersome, requiring a high level of operational proficiency from operation and maintenance personnel. On-site operations are time-consuming and labor-intensive, resulting in low efficiency in emergency fault handling and a very complicated maintenance process, making it difficult to meet the needs of high-frequency, high-efficiency, and low-cost fault repair operations in distribution networks. Therefore, a remote-controlled circuit breaker operating mechanism for power maintenance is proposed to solve the problems mentioned in the background technology. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention provides a remote-controlled circuit breaker operating mechanism for power maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a remote-controlled circuit breaker operating mechanism for power maintenance, comprising a protective cabin assembly, and further comprising: A composite component, installed inside the protective housing assembly, is used to rotate and press the rotary handle and buttons on the circuit breaker device; A control cabin assembly, which is fixedly connected to the top of the protective cabin assembly; The protective cabin assembly includes an integrally formed protective cabin body, a support plate, and a power cable compartment. The support plate is used to divide the protective cabin body into upper and lower chambers. A dovetail groove bottom plate is fixedly connected to the bottom of the protective cabin body. A power cable compartment is provided at the bottom of the inner cavity of the protective cabin body. The composite component includes a rotary motor, a coupling, a central gear, a snap-fit ​​mechanism, and a rack plate. The end of the rotary motor away from the power cord compartment is fixedly connected to a transmission shaft. The snap-fit ​​mechanism includes a rotating base with a hexagonal screw hole in the middle. Both ends of one side of the rotating base are fixedly connected to mortise bases, and columnar tenons are inserted into the surface of the mortise bases.

[0006] Preferably, the two ends of the coupling are cylindrical and hexagonal, respectively. The cylindrical end of the coupling is fixedly connected to the transmission shaft, and the hexagonal end of the coupling is fixedly connected to the rotating base through a hexagonal screw hole.

[0007] Preferably, the central gear has a slot in the middle, and the central gear is inserted into the outer wall of the coupling through the slot and fixedly connected to the coupling. The central gear is meshed with the rack plate.

[0008] Preferably, both sides of the rack plate are fixedly connected with locking strips, the outer wall of the protective cabin is provided with a limiting groove that matches the locking strips of the rack plate, and the side wall of the protective cabin is provided with a plurality of positioning holes.

[0009] Preferably, the rotary motor has several connecting screw holes on one side, and the transmission shaft has four screw holes on its surface. The rotary motor is fixedly connected to the protective cabin by bolt assembly and the screw holes.

[0010] Preferably, the protective cabin has a motor spindle hole on its side wall that mates with the support plate, the support plate has a motor wire groove on its surface, the power cable compartment has a fixing wire groove on its side wall, and the dovetail groove bottom plate has a charging slot in the middle of its surface.

[0011] Preferably, the control cabin assembly includes a protective shell, which is fixedly connected to the top of the protective cabin body by a bolt assembly. A control chip is placed inside the protective shell, and a chip programming port is provided on the side of the protective shell near the power cord compartment.

[0012] Preferably, the protective shell has heat dissipation grilles on the other three sides, a movable top cover is fastened to the top of the protective shell, a wireless transmission port is provided in the middle of the surface of the movable top cover, and two symmetrically arranged control cable slots are provided at the bottom of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the design of composite components, utilizes a coupling to synchronously drive the central gear and the snap-fit ​​mechanism during the operation of the rotary motor. This allows the columnar tenon of the snap-fit ​​mechanism to rotate the circuit breaker knob, while the central gear meshes with the rack plate to press the button. The two sets of actions are output synchronously, and the device can be adapted to both rotary and push-button circuit breakers simply by adjusting the orientation of the entire unit. One mechanism is compatible with both types of equipment, eliminating the cumbersome steps of changing special tooling. Furthermore, the assembly of the entire transmission parts is simple, eliminating multiple independent drive motors, simplifying the overall structure, reducing the size of the equipment, and making the operation process simple and easy to understand, lowering the operating threshold for maintenance personnel. This achieves multi-purpose functionality and significantly expands the applicability of the equipment.

[0014] This invention employs a compartmentalized, independently designed protective cabin assembly. The protective cabin is divided into a motor compartment, a power cable compartment, and a power supply compartment by a support plate. It also features dedicated cable trays and motor cable trays for organized cable management, ensuring neat and tangle-free cable routing. Furthermore, the composite components and the protective cabin assembly are detachable via bolts, allowing for individual disassembly and replacement without disassembling the entire device. This significantly reduces maintenance time, expands compatibility with standard spare parts on the market, and utilizes heat dissipation grilles on three sides of the protective shell to continuously dissipate heat from the chip, preventing overheating and ensuring stable remote signal transmission, thereby improving the long-term reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the front section structure of the present invention; Figure 3 This is a schematic diagram of the front section structure of the protective cabin component of the present invention; Figure 4 This is an enlarged view of the structure of the composite component of the present invention; Figure 5 This is an exploded view of the structure at the composite component. Figure 6 This is an enlarged view of the structure of the buckling mechanism of the present invention; Figure 7 This is an exploded view of the control cabin assembly of the present invention.

[0016] In the picture: 1. Protective cabin assembly; 101. Protective cabin body; 102. Support plate; 103. Power cable compartment; 104. Power compartment; 105. Fixed cable tray; 106. Motor cable tray; 107. Positioning hole; 108. Dovetail groove bottom plate; 109. Charging slot; 2. Composite components; 201. Rotary motor; 202. Transmission shaft; 203. Coupling; 204. Central gear; 205. Snap-fit ​​mechanism; 251. Rotating base; 252. Hexagonal screw hole; 253. Mortise base; 254. Columnar tenon; 206. Rack plate; 207. Connecting screw hole; 3. Control cabin components; 301. Protective shell; 302. Chip programming port; 303. Heat dissipation grille; 304. Movable top cover; 305. Wireless transmitter port; 306. Control cable tray. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 7 As shown, the present invention provides a remote-controlled circuit breaker operating mechanism for power maintenance, including a protective cabin assembly 1, and further comprising: Composite component 2 is installed inside the protective compartment component 1. Composite component 2 is used to rotate and press the rotary handle and buttons on the circuit breaker device. Control cabin assembly 3 is fixedly connected to the top of protective cabin assembly 1; The protective cabin assembly 1 includes an integrally formed protective cabin body 101, a support plate 102, and a power cable compartment 103. The support plate 102 is used to divide the protective cabin body 101 into upper and lower chambers. A dovetail groove bottom plate 108 is fixedly connected to the bottom of the protective cabin body 101. A power cable compartment 104 is provided at the bottom of the inner cavity of the protective cabin body 101. The composite component 2 includes a rotary motor 201, a coupling 203, a central gear 204, a snap-fit ​​mechanism 205, and a rack plate 206. The end of the rotary motor 201 away from the power cable compartment 103 is fixedly connected to a transmission shaft 202. The snap-fit ​​mechanism 205 includes a rotating base 251. A hexagonal screw hole 252 is opened in the middle of the rotating base 251. Both ends of one side of the rotating base 251 are fixedly connected to mortise bases 253. Columnar tenons 254 are inserted into the surface of the mortise bases 253.

[0019] The above-mentioned solution involves the protective cabin 101, rotating base 251, and control cabin assembly 3, all manufactured using a partially infilled integrated 3D printing process. This significantly reduces the amount of material used for internal filling of components while ensuring overall structural rigidity and meeting the stress requirements of power field operations. This effectively reduces the overall weight of the machine, balances the center of gravity, and achieves lightweight and low-cost manufacturing. The reduced weight makes it easier for staff to carry and install the machine on-site, significantly reducing the labor intensity of manual transport and handheld operations. The integrated molding structure reduces gaps between components, preventing outdoor dust and moisture from entering the internal transmission parts through the joints, improving the equipment's outdoor adaptability. It balances structural strength, portability, and production costs, making it suitable for various remote maintenance scenarios in power distribution networks, significantly enhancing its practicality. The columnar tenon 254 adopts a plug-in mortise and tenon structure and can be detachably plugged into and fixed to the surface of the mortise base 253. This allows for flexible replacement of the columnar tenon 254 with the corresponding thickness according to the size and width of the operating handle of different circuit breakers on site. It has strong adaptability and is easy to disassemble and assemble, thereby effectively improving the compatibility of the device with different models of circuit breaker equipment. At the same time, the snap-fit ​​mechanism 205 adopts an integrated printed partial filling structure, which achieves lightweight design while ensuring structural rigidity, making the overall use of the equipment more flexible and reliable.

[0020] like Figures 4 to 6 As shown, the two ends of the coupling 203 are cylindrical and hexagonal, respectively. The cylindrical end of the coupling 203 is fixedly connected to the transmission shaft 202, and the hexagonal end of the coupling 203 is fixedly connected to the rotating base 251 through the hexagonal screw hole 252. The center gear 204 has a slot in the middle. The center gear 204 is inserted into the outer wall of the coupling 203 through the slot and is fixedly connected to the coupling 203. The center gear 204 is meshed with the rack plate 206.

[0021] The above solution employs a uniquely shaped design for the coupling 203, with one end cylindrical and the other hexagonal. The cylindrical end stably connects with the transmission shaft 202 for force transmission, while the hexagonal end provides a larger contact surface and more evenly distributed force, effectively preventing localized crushing damage, reducing transmission wear, and ensuring stable torque transmission. Simultaneously, the central gear 204 is assembled with the coupling 203 via a slotted connection. In actual use, different gear ratios and radii can be replaced according to specific requirements, and combined with a gear and rack meshing structure, a stable conversion of rotary power to linear power can be achieved, expanding the device's transmission adaptability.

[0022] like Figures 2 to 4As shown, both sides of the rack plate 206 are fixedly connected with retaining strips. The outer wall of the protective chamber 101 is provided with a limiting groove that matches the retaining strips of the rack plate 206. The side wall of the protective chamber 101 is provided with several positioning holes 107. The side of the rotary motor 201 is provided with several connecting screw holes 207. The surface of the transmission shaft 202 is provided with four screw holes. The rotary motor 201 is fixedly connected to the inside of the protective chamber 101 by bolt assembly and the engagement of the rotary motor 201 and the screw holes.

[0023] The above solution is adopted: the rack plate 206 slides with the limiting groove on the outer wall of the protective chamber 101 through the two side retaining strips, thereby limiting and guiding the rack plate 206, ensuring that the reciprocating linear motion of the rack plate 206 is smooth and stable. With the smooth treatment structure, the transmission jamming and stuttering problems are effectively avoided. The rotary motor 201 is locked and fixed by the connecting screw hole 207 and the screw hole one matching bolt assembly. The assembly structure is stable, which can effectively avoid motor vibration and deviation, and ensure the overall transmission accuracy. At the same time, the positioning hole 107 facilitates the precise assembly and fixed installation of the whole equipment.

[0024] like Figure 3 As shown, the protective cabin 101 has a motor spindle hole on its side wall that mates with the support plate 102, the support plate 102 has a motor wire groove 106 on its surface, the power cable compartment 103 has a fixing wire groove 105 on its side wall, and the dovetail groove bottom plate 108 has a charging slot 109 in the middle of its surface.

[0025] The above solution employs a compartmentalized integrated structure design for the protective cabin 101. Power and control lines are separately stored and bundled via motor cable trays 106 and fixed cable trays 105, resulting in a neat and orderly wiring arrangement that eliminates issues of cable tangling, interference, and wear, thus improving equipment operational stability. The motor spindle hole provides limiting protection for the transmission structure. The dovetail base plate 108, in conjunction with the charging port 109, allows for external power supply to the energy storage components inside the power compartment 104, effectively solving the problem of battery depletion and ensuring continuous and stable equipment operation.

[0026] like Figure 2 and Figure 7 As shown, the control cabin assembly 3 includes a protective shell 301, which is fixedly connected to the top of the protective cabin 101 by a bolt assembly. The control chip is placed inside the protective shell 301. A chip programming port 302 is provided on the side of the protective shell 301 near the power cord compartment 103. Heat dissipation grilles 303 are provided on the other three sides of the protective shell 301. A movable top cover 304 is fastened to the top of the protective shell 301. A wireless transmission port 305 is provided in the middle of the surface of the movable top cover 304. Two symmetrically arranged control cable slots 306 are provided at the bottom of the protective shell 301.

[0027] The above solution is adopted: the control cabin component 3 adopts a top-mounted independent cabin design, and the control program can be easily entered and modified through the chip programming port 302, making equipment debugging and upgrading convenient; the multi-faceted heat dissipation grilles 303 can quickly dissipate the heat of the control chip, avoid high temperature crashes and signal interruptions, and stabilize the equipment operation; the movable top cover 304 can be detached and fastened, which facilitates chip disassembly and maintenance; the wireless transmitter port 305 can optimize the signal transmission effect, improve the remote control distance and control accuracy; and the symmetrically arranged control cable trays 306 can independently store the control lines, further organize the line layout, and improve the overall integration and maintenance convenience of the equipment.

[0028] The working principle and usage process of this invention are as follows: During use, the operator sends an operation command to the control chip inside the protective casing 301 via the chip programming port 302 through remote control. Upon receiving the signal, the control chip starts the rotary motor 201, which then outputs rotational torque to the coupling 203 through the transmission shaft 202. The coupling 203 then drives the central gear 204 and the rotating base 251 to rotate synchronously, achieving synchronous torque transmission. While the rotating base 251 rotates, the mortise base 253 drives the columnar tenon 254 synchronously, thereby applying a rotational torque to the operating handle of the rotary circuit breaker to realize the opening and closing operation of the circuit breaker. While the central gear 204 rotates, it drives the rack plate 206 to move axially along the limit seat on the outer wall of the protective cabin 101, so that after the rack plate 206 moves, one end of it presses against the operating button of the push-button circuit breaker to realize the push-button opening and closing operation. The rotational motion of the latching mechanism 205 and the linear reciprocating motion of the rack plate 206 are both synchronously driven by the same rotary motor 201 through the coupling 203. The two functions are completed at the same time and the execution mode cannot be selected separately. In actual use, by changing the orientation of the entire operating mechanism so that the latching mechanism 205 or the rack plate 206 is aligned with the corresponding operating end of the circuit breaker, the operating requirements of different types of circuit breakers can be met. Thus, one set of mechanisms can be used to adapt to both rotary and push-button circuit breaker operation modes.

[0029] 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 process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A remote-controlled circuit breaker operating mechanism for power maintenance, comprising a protective cabin assembly (1), characterized in that: It also includes: Composite component (2), which is installed inside the protective cabin component (1), is used to rotate and press the rotary handle and button on the circuit breaker device; Control cabin assembly (3), which is fixedly connected to the top of protective cabin assembly (1); The protective cabin assembly (1) includes an integrally formed protective cabin body (101), a support plate (102), and a power cable compartment (103). The support plate (102) is used to divide the protective cabin body (101) into upper and lower chambers. A dovetail groove bottom plate (108) is fixedly connected to the bottom of the protective cabin body (101). A power cable compartment (104) is provided at the bottom of the inner cavity of the protective cabin body (101). The composite component (2) includes a rotary motor (201), a coupling (203), a central gear (204), a snap-fit ​​mechanism (205), and a rack plate (206). The rotary motor (201) is fixedly connected to a transmission shaft (202) at one end away from the power cable compartment (103). The snap-fit ​​mechanism (205) includes a rotating base (251). A hexagonal screw hole (252) is provided in the middle of the rotating base (251). Both ends of one side of the rotating base (251) are fixedly connected to mortise bases (253). Columnar tenons (254) are inserted into the surface of the mortise bases (253).

2. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: The two ends of the coupling (203) are cylindrical and hexagonal respectively. The cylindrical end of the coupling (203) is fixedly connected to the transmission shaft (202), and the hexagonal end of the coupling (203) is fixedly connected to the rotating base (251) through a hexagonal screw hole (252).

3. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: The central gear (204) has a slot in the middle. The central gear (204) is inserted into the outer wall of the coupling (203) through the slot and is fixedly connected to the coupling (203). The central gear (204) meshes with the rack plate (206).

4. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: Both sides of the rack plate (206) are fixedly connected with locking strips. The outer wall of the protective cabin (101) is provided with a limiting groove that matches the locking strips of the rack plate (206). The side wall of the protective cabin (101) is provided with a number of positioning holes (107).

5. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: The rotary motor (201) has several connecting screw holes (207) on one side, and the transmission shaft (202) has four screw holes one on its surface. The rotary motor (201) is fixedly connected to the protective cabin (101) by bolt assembly and the cooperation of the rotary motor (201) and screw holes one.

6. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: The protective cabin (101) has a motor spindle hole on its side wall that cooperates with the support plate (102). The support plate (102) has a motor wire groove (106) on its surface. The power cable compartment (103) has a fixing wire groove (105) on its side wall. The dovetail groove bottom plate (108) has a charging slot (109) in the middle of its surface.

7. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 1, characterized in that: The control cabin assembly (3) includes a protective shell (301), which is fixedly connected to the top of the protective cabin (101) by a bolt assembly. A control chip is placed inside the protective shell (301), and a chip programming port (302) is provided on the side of the protective shell (301) near the power cable compartment (103).

8. The remote-controlled circuit breaker operating mechanism for power maintenance according to claim 7, characterized in that: The protective shell (301) has heat dissipation grilles (303) on the other three sides. The top of the protective shell (301) is fastened to a movable top cover (304). A wireless transmission port (305) is opened in the middle of the surface of the movable top cover (304). Two control wire grooves (306) are opened at the bottom of the protective shell (301).

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