A universal circuit breaker electric drawer seat

Abstract

The utility model relates to a kind of omnipotent circuit breaker electric drawer seat, including handle, rotating rod, gear set, driving screw group, insulating slot, copper bar, jacks and door plate, handle is inserted into swing handle insertion hole, the end of rotating rod is equipped with the gear set meshing connection, gear set is meshed with the gear of driving screw group end portion, the driving screw group includes four parallel screw rods, it is respectively screw rod I, screw rod II, screw rod III, screw rod IV arranged in upper and lower, and screw rod is threadedly connected with insulating slot, the door plate includes the valve I and valve II of sticking connection, valve I and valve II are all provided with three rectangular holes corresponding drawer seat three-phase connection end position, and four right-angle groove slides are provided on drawer seat base.This utility model realizes copper bar automation accurate displacement, gets rid of the complexity of traditional manual swing handle, adapts intelligent power distribution demand, screw rod transmission replaces spring contact structure, door plate and jacks linkage design, wide slot reserved sliding space, cooperate with slide buckle protection reliable.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a comprehensive distribution box with street light control. Background Technology

[0002] The current universal circuit breaker drawer base has several defects in its structural design and practical application, seriously affecting its operating efficiency and safety. Regarding the contact structure, the use of bridge-type contacts combined with spring-driven push-pull copper sheets presents a fatal hidden danger. As a core load-bearing component, the spring is prone to annealing under prolonged exposure to energized and heated environments, leading to elasticity decay. This can cause insufficient contact pressure, resulting in increased contact resistance, localized overheating, and in severe cases, contact erosion, phase-to-phase short circuits, or even fires and other safety accidents. Utility Model Content

[0003] To overcome the above defects, this utility model provides a universal circuit breaker electric drawer base, which adopts a planetary gear structure to realize electric feeding of the body, and uses a hard-connected copper busbar to clamp the body busbar and the drawer busbar.

[0004] Technical solution: To solve the above problems, the present invention adopts the following technical solution.

[0005] A universal circuit breaker electric drawer base, characterized in that it includes a handle, a rotating rod, a gear set, a drive screw assembly, an insulating slot, a copper busbar, a top rod, and an opening plate. The handle is inserted into the crank handle socket to drive the rotating rod to rotate. The end of the rotating rod is provided with a gear set that meshes with it. The gear set meshes with the gear at the end of the drive screw assembly. The drive screw assembly includes four parallel screws, namely screw I, screw II, screw III, and screw IV arranged vertically. Insulating slots are threaded onto the screws. The rotation of the screws causes the insulating slots to move laterally. Screw I and screw II are connected by end gears, and screw III and screw IV are connected by end gears. The copper busbar is fixed in the insulating slot, and the insulating slots on screw I and screw IV are fixed. The copper busbar on the right, the insulating slots on screws II and III fix the copper busbar on the left. When all four screws rotate simultaneously, the copper busbar on the left and right moves closer or further apart. The door panel includes hinged doors I and II that fit together. Both hinged doors I and II are provided with three rectangular holes corresponding to the three-phase connection ends of the drawer seat. The drawer seat base is provided with four right-angled groove-shaped slides. The outer edge of the slides is provided with buckles. The door panel is positioned between two symmetrical slides and slides left and right within the slides. Hinges I and II fit together. Hinges I is provided with a sliding pin, and hinges II is provided with a strip hole. The sliding pin is slidably connected to the strip hole to limit the displacement of hinges I and II.

[0006] Furthermore, the push rod consists of a retractable button plate, a guide bracket, guide rail I and guide rail II, and a return spring. The return spring is fixed inside the guide bracket and is connected to the button plate to form a return mechanism. The valve I end is provided with slot I and a wide slot, and the valve II end is provided with slot II and a wide slot. The button plate is provided with guide rail I and guide rail II. The guide rail I and guide rail II are bent to form a double rail with a narrow front end and a wide rear end. Slot I is mounted on guide rail I and is slidably connected to it. Slot II is mounted on guide rail II and is slidably connected to it. When the button plate moves back and forth, guide rail I drives valve I to move left and right, and guide rail II drives valve II to move left and right. Valve I and valve II move left and right in a staggered manner. The rectangular holes overlap to form the channel of the handcart terminal, or the rectangular holes of valve I and valve II are staggered to form the front and rear cavities of the closed opening plate.

[0007] Furthermore, the wide slot of valve I is located on the right side of slot I, which is mounted above guide rail II and does not contact guide rail II. The wide slot of valve II is located on the left side of slot II and does not contact guide rail I. The wide slot of valve I provides sliding space for slot II of valve II; the wide slot of valve II provides sliding space for slot I of valve I.

[0008] Furthermore, the gear set includes gears I, II, III, and IV of different shapes, all of which are mounted on the side wall of the drawer seat. Gear I of different shapes has a partial tooth surface and is connected to the gear and gear II at the end of the rotating rod. Gear II is meshed with gear III, gear III is meshed with gear IV, gear III and gear IV rotate in opposite directions with the same diameter, gear III is meshed with the gear at the end of the screw III, and gear IV is meshed with the gear at the end of the screw I.

[0009] Furthermore, a motor drive mechanism is provided on one side of the rotating rod below, and the motor drive mechanism drives the rotating rod to rotate through a planetary gear fixed on the rotating rod.

[0010] Furthermore, the position of the rectangular hole corresponds to the position of the insulating slot.

[0011] Furthermore, two door panels are provided, and the two door panels are arranged longitudinally in a symmetrical manner.

[0012] Furthermore, two top rods are provided and fixed between the two door panels.

[0013] The beneficial effects of this utility model are:

[0014] 1. In terms of automation and ease of operation, the device innovatively integrates a motor-driven mechanism and a manual operation mode. The motor drives the rotating rod to rotate via planetary gears, and in conjunction with the transmission of the gear set and drive screw set, the copper busbar automatically moves closer or further away, completely eliminating the limitations of traditional pure manual crank operation. It can be easily connected to an intelligent power distribution system to achieve remote automated control. At the same time, the handle insertion function is retained to ensure manual emergency operation in special scenarios, balancing automation needs and operational flexibility.

[0015] 2. Regarding contact reliability and safety, an insulated slot-fixed copper busbar structure replaces the traditional spring-push-pull contact design. Four parallel screws rotate synchronously, driving precise displacement of the copper busbar, ensuring stable and controllable contact pressure. This fundamentally avoids contact problems caused by spring annealing due to heat, significantly reducing the risk of increased contact resistance, localized overheating, and phase-to-phase short circuits. The design of dissimilar gears and gears of the same diameter rotating in opposite directions in the gear set ensures the synchronicity of the screw drive, reducing contact wear caused by positioning deviations.

[0016] 3. Regarding protection and operational precision, the linkage structure of the door panel and the top rod forms a reliable protection mechanism. Valves I and II achieve staggered movement through the cooperation of sliding pins, slotted holes, and guide rails, precisely controlling the opening and closing of the three-phase connection channel. This not only forms a reliable conductive path during operation but also seals the cavity in isolation mode, preventing accidental electric shock. The symmetrically arranged door panel and top rod structure further enhances the stability and stress balance of the device operation.

[0017] 4. The overall structure reduces the number of easily worn spring components, and the screw and gear transmission structure is more durable, reducing maintenance frequency and costs, and significantly improving the service life and operating economy of the equipment. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 is a schematic diagram of the upper structure of this utility model.

[0020] Figure 3 is a schematic diagram of the door panel structure of this utility model.

[0021] Figure 4 is a schematic diagram of the partially unfolded structure of the door panel of this utility model.

[0022] Figure 5 is a schematic diagram of the motor drive position structure of this utility model.

[0023] The components in the diagram are named as follows: Handle 1, Rotating rod 2, Gear set 3, Drive screw set 4, Insulating slot 5, Copper busbar 6, Top rod 7, Door opening plate 8, Screw I 9, Screw II 10, Screw III 11, Screw IV 12, Valve I 13, Valve II 14, Rectangular hole 15, Buckle 16, Sliding pin 17, Strip hole 18, Guide rail I 19, Guide rail II 20, Slot II 21, Wide slot 22, Motor drive mechanism 31. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] A universal circuit breaker electric drawer base includes a handle, a rotating rod 2, a gear set 3, a drive screw assembly, an insulating slot 5, a copper busbar 6, a top rod 7, and an opening plate 8. The handle is inserted into the crank handle insertion hole 1, driving the rotating rod 2 to rotate. The end of the rotating rod 2 is provided with a gear set 3 that meshes with it. The gear set 3 meshes with a gear at the end of the drive screw assembly. The drive screw assembly includes four parallel screws, namely screw I 9, screw II 10, screw III 11, and screw IV 12 arranged vertically. The screws are threaded with insulating slots 5. The rotation of the screws causes the insulating slots 5 to move laterally. Screw I 9 and screw II 10 are connected by end gears, and screw III 11 and screw IV 12 are connected by end gears. The copper busbar 6 is fixed in the insulating slot 5, and the insulating slot 5 on screw I 9 and screw IV 12 fixes the right copper busbar. The insulating slots on screws II10 and III11 fix the left copper busbar. When all four screws rotate simultaneously, the left and right copper busbars move closer or further apart. The door panel 8 includes fitted doors I13 and II14. Both doors I13 and II14 are provided with three rectangular holes 15 corresponding to the three-phase connection ends of the drawer seat. The drawer seat base is provided with four right-angled groove slides. The outer edge of the slides is provided with buckles 16. The door panel 8 is located between two symmetrical slides and slides left and right within the slides. Doors I13 and II14 fit together. Door I13 is provided with a sliding pin 17, and door II14 is provided with a strip hole 18. The sliding pin 17 is slidably connected to the strip hole 18 to limit the displacement of doors I13 and II14.

[0026] Furthermore, the push rod 2 is composed of a retractable button plate, a guide bracket, guide rail I 19 and guide rail II 20, and a return spring. The return spring is fixed inside the guide bracket, and the return spring is connected to the button plate to form a return mechanism. The valve I 13 has a slot I and a wide slot 22 on its end side, and the valve II 14 has a slot II 21 and a wide slot 22 on its end side. The button plate has guide rail I 19 and guide rail II 20 on its surface. The guide rail I 19 and guide rail II 20 are bent to form a shape with a narrow front end and a wide rear end. The system consists of two tracks: slot I is mounted on guide rail I19 and slidably connected to it, and slot II21 is mounted on guide rail II20 and slidably connected to it. The button panel moves back and forth, guide rail I19 drives valve I13 to move left and right, and guide rail II20 drives valve II14 to move left and right. Valves I13 and II14 move left and right in a staggered manner. The rectangular holes 15 overlap to form the channel of the handcart terminal, or the rectangular holes 15 of valve I13 and valve II14 are staggered to form the front and rear cavities of the closed opening panel.

[0027] Furthermore, the wide slot 22 of valve I 13 is located on the right side of slot I, which is mounted above guide rail II 20 and does not contact guide rail II 20. The wide slot 22 of valve II 14 is located on the left side of slot II 21 and does not contact guide rail I. The wide slot 22 of valve I provides sliding space for slot II 21 of valve II 14; the wide slot 22 of valve II 14 provides sliding space for slot I of valve I 13.

[0028] Furthermore, the gear set 3 includes a non-standard gear I, gear II, gear III, and gear IV, all of which are mounted on the side wall of the drawer seat. Non-standard gear I has a partial tooth surface, which is connected to the gear and gear II at the end of the rotating rod 2. Gear II meshes with gear III, and gear III meshes with gear IV. Gear III and gear IV rotate in opposite directions with the same diameter. Gear III meshes with the gear at the end of the screw III 11, and gear IV meshes with the gear at the end of the screw I 9.

[0029] Furthermore, a motor drive mechanism 31 is provided on one side of the rotating rod 2 below, and the motor drive mechanism 31 drives the rotating rod 2 to rotate through a planetary gear fixed on the rotating rod.

[0030] Furthermore, the position of the rectangular hole 15 corresponds to the position of the insulating slot.

[0031] Furthermore, two door panels 8 are provided, and the two door panels 8 are arranged longitudinally in a centrally symmetrical manner.

[0032] Furthermore, two top rods 2 are provided and fixed between the two door panels.

[0033] The working principle of this utility model is as follows: This universal circuit breaker electric drawer base achieves precise copper busbar docking and safety protection control through mechanical transmission and structural linkage design. Its working process and principle can be divided into four core links: drive start-up, transmission linkage, copper busbar displacement and door panel protection.

[0034] During the start-up phase, the device supports both electric and manual start-up methods. In electric mode, the motor drive mechanism drives the rotating rod to rotate via planetary gears fixed on the rotating rod, converting electrical energy into mechanical kinetic energy. In manual mode, the operator inserts the handle into the crank socket and manually rotates the handle to drive the rotating rod. The two modes can be flexibly switched according to the scenario to ensure continuous operation.

[0035] The transmission linkage process is the core power transmission link. After the rotating rod rotates, its end gear meshes with the dissimilar gear I in the gear set, driving gears II, III, and IV in sequence. Among them, gears III and IV are of the same diameter and rotate in opposite directions, respectively driving the end gears of screws III and I to rotate. At the same time, screws I and II mesh with each other through their end gears, and screws III and IV mesh with each other through their end gears, ultimately achieving synchronous rotation of the four parallel screws, converting the rotational motion of the rotating rod into the coordinated rotation of the screws.

[0036] In the copper busbar displacement control, the threads of the four screws are connected to the corresponding insulating slots. When the screws rotate, they drive the insulating slots to move stably laterally. Since the insulating slots on screws I and IV fix the right copper busbar, and the insulating slots on screws II and III fix the left copper busbar, when the screws rotate synchronously, the left and right copper busbars move precisely closer or further away with the insulating slots, completing the switching of the circuit breaker's connection, testing, or isolation states. The contact pressure is stably controlled through the screw drive, avoiding the problem of unstable force in traditional springs.

[0037] The door panel safety linkage ensures operational safety. When the copper busbar moves, the push button plate on the top rod shifts back and forth with the mechanism. Its bent guide rails I and II respectively drive valves I and II to slide left and right within the slide rails. Through the sliding limit of the sliding pin and the strip hole, valves I and II achieve staggered movement: in the working state, their rectangular holes overlap to form the handcart terminal channel; in the isolation state, the rectangular holes are staggered to close the partition cavity. The wide slot design provides sliding space for each other, and together with the buckle limit, ensures that the protective structure operates accurately and reliably.

[0038] In terms of the status monitoring and positioning feedback system, this utility model includes a displacement sensor or limit switch installed on the door panel to monitor the displacement of the copper busbar and the door panel in real time, accurately determining the connection, testing, or isolation status of the drawer seat. It is also equipped with a gear set or screw rotation angle encoder, which, combined with preset parameters, achieves closed-loop position control, avoiding positioning deviations caused by mechanical transmission errors and ensuring the accuracy of the copper busbar connection and the door panel's movement.

[0039] This utility model also includes an electrical interlock device to implement logic controls such as preventing power supply when the copper busbar is not fully in place and prohibiting operation when the door panel is not closed, thus preventing electric shock or short circuit accidents caused by misoperation. For the motor drive mode, overload protection, overcurrent protection, and emergency braking modules are added to automatically cut off the motor power supply when the transmission mechanism jams or the load is abnormal, preventing component damage. Furthermore, a manual / electric mode switching interlock structure is designed, such as a slider mechanism with a shift fork, controlled by an electromagnet or a manual lever. During manual operation, the electromagnet is de-energized, and the shift fork disengages the motor-side gear; during electric operation, the electromagnet is energized and engaged, driving the shift fork to disengage the manual end gear, preventing mechanical conflict caused by simultaneous operation of the two drive methods.

[0040] This invention features integrated status indicator lights or displays for operational feedback and human-machine interaction, showing the current operating mode, drawer position, and fault information in real time. An audible and visual alarm device is included to warn of abnormal situations such as over-travel or component jamming, facilitating timely intervention by operators. For electric operation mode, a remote control interface is also provided, supporting communication with power distribution automation systems to achieve remote command reception and status uploading functions.

[0041] This utility model incorporates a lubrication and dustproof structure at the connection between the drive screw assembly and the insulating slot, such as a self-lubricating bearing and a sealing cover, to reduce wear and dust accumulation during long-term operation. The door opening slide is equipped with a guide positioning block, which, in conjunction with the latch, enhances sliding stability and prevents door misalignment and jamming. The push rod reset mechanism features a spring force adjustment component to ensure uniform reset force on the button panel, preventing protection failure due to improper reset. Furthermore, the overall structure should include a grounding terminal and insulating shielding to improve the equipment's anti-interference capability and electrical safety performance.

Claims

1. A universal circuit breaker electric drawer base, characterized in that: The device includes a handle, a rotating rod, a gear set, a drive screw assembly, an insulating slot, a copper busbar, a push rod, and a door opening panel. The handle is inserted into the crank handle's insertion hole, causing the rotating rod to rotate. The end of the rotating rod is equipped with a gear set that meshes with it. This gear set meshes with a gear at the end of the drive screw assembly. The drive screw assembly includes four parallel screws: screw I, screw II, screw III, and screw IV, arranged vertically. Insulating slots are threaded onto the screws. Rotation of the screws causes the insulating slots to move laterally. Screws I and II are connected by end gears, as are screws III and IV. The copper busbar is fixed within the insulating slots, and the insulating slots on screws I and IV are fixed... The copper busbar on the right, the insulating slots on screws II and III fix the copper busbar on the left. When all four screws rotate simultaneously, the copper busbar on the left and right moves closer or further apart. The door panel includes hinged doors I and II that fit together. Both hinged doors I and II are provided with three rectangular holes corresponding to the three-phase connection ends of the drawer seat. The drawer seat base is provided with four right-angled groove-shaped slides. The outer edge of the slides is provided with buckles. The door panel is positioned between two symmetrical slides and slides left and right within the slides. Hinges I and II fit together. Hinges I is provided with a sliding pin, and hinges II is provided with a strip hole. The sliding pin is slidably connected to the strip hole to limit the displacement of hinges I and II.

2. The universal circuit breaker electric drawer base according to claim 1, characterized in that: The push rod consists of a retractable button plate, a guide bracket, guide rail I and guide rail II, and a return spring. The return spring is fixed inside the guide bracket and is connected to the button plate to form a return mechanism. The valve I end is provided with slot I and a wide slot, and the valve II end is provided with slot II and a wide slot. The button plate is provided with guide rail I and guide rail II. The guide rail I and guide rail II are bent to form a double rail with a constricted front end and a flared rear end. Slot I is mounted on guide rail I and is slidably connected to it. Slot II is mounted on guide rail II and is slidably connected to it. When the button plate moves back and forth, guide rail I drives valve I to move left and right, and guide rail II drives valve II to move left and right. Valve I and valve II move left and right in a staggered manner. The rectangular holes overlap to form the channel of the handcart terminal, or the rectangular holes of valve I and valve II are staggered to form the front and rear cavities of the closed opening plate.

3. The universal circuit breaker electric drawer base according to claim 1, characterized in that: The wide slot of valve I is located on the right side of slot I, which is mounted above guide rail II and does not contact guide rail II. The wide slot of valve II is located on the left side of slot II and does not contact guide rail I. The wide slot of valve I provides sliding space for slot II of valve II. The wide slot of valve II provides sliding space for the slot I of valve I.

4. The universal circuit breaker electric drawer base according to claim 1, characterized in that: The gear set includes gears I, II, III, and IV, all of which are mounted on the side wall of the drawer seat. Gear I has a partial tooth surface and is connected to the gear and gear II at the end of the rotating rod. Gear II meshes with gear III, and gear III meshes with gear IV. Gear III and gear IV rotate in opposite directions with the same diameter. Gear III meshes with the gear at the end of the screw III, and gear IV meshes with the gear at the end of the screw I.

5. A universal circuit breaker electric drawer base according to claim 1, characterized in that: A motor drive mechanism is provided on one side of the rotating rod, and the motor drive mechanism drives the rotating rod to rotate through a planetary gear fixed on the rotating rod.

6. The universal circuit breaker electric drawer base according to claim 1, characterized in that: The position of the rectangular hole corresponds to the position of the insulating slot.

7. A universal circuit breaker electric drawer base according to claim 1, characterized in that: Two door panels are provided, and the two door panels are arranged longitudinally and symmetrically at the center.

8. The universal circuit breaker electric drawer base according to claim 1, characterized in that: Two top rods are provided and fixed between the two door panels.

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