Electric isolation mechanism

Abstract

This utility model discloses an electric isolation mechanism, relating to the field of power equipment technology. The utility model includes a pressure / open / close position sensor crank arm, a fixed crank arm, an auxiliary compression spring, a close position sensor, a close position sensor, an electric drive device, a first front plate of the mechanism, an interlocking baffle, a spline shaft, a rear plate of the mechanism, a connecting column between the front and rear plates of the mechanism, a second front plate of the mechanism, a front panel of the mechanism, an input crank arm, an output crank arm, and a connecting rod between the input and output crank arms. In this utility model, the interlocking baffle cuts off the manual / electric switching sensor, ensuring that manual and electric operations do not interfere with each other, making it safer and more reliable. At the same time, it effectively solves the problem in existing designs where no motor is installed, relying solely on manual operation, or where the motor operation shaft is cumbersome even when a motor is installed. The electric isolation mechanism has a simple and reliable structure, and the transmission part is a four-bar linkage, resulting in low transmission energy consumption and ease of assembly and production.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to an electric isolation mechanism. Background Technology

[0002] A switchgear is an electrical device whose main function is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes in a power system. In existing technology, switchgear typically uses a manual isolating mechanism to control the opening and closing of the isolating blades. The manual isolating mechanism includes a handle and a rotating shaft for opening and closing the isolating blades. The operator drives the rotating shaft through the handle to complete the opening and closing of the isolating blades. However, the drawbacks of the above structure are that it is inconvenient and laborious to operate, and it cannot achieve intelligent and automated control of the electrical system. Utility Model Content

[0003] To address the inconvenience of opening and closing the isolating knife in switchgear, the purpose of this utility model is to provide an electric isolating mechanism.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electric isolation mechanism, which includes a pressure-opening / closing position sensor crank arm, a fixed crank arm, an auxiliary compression spring, a closing position sensor, a separating position sensor, an electric drive device, a mechanism front plate one, an interlocking baffle, a spline shaft, a mechanism rear plate, a mechanism front-rear plate connecting column, a mechanism front plate two, a mechanism front panel, an input crank arm, an output crank arm, and an input and output crank arm connecting rod; The front plate 1, front plate 2, rear plate and front panel of the mechanism are fixedly connected by the front and rear plate connecting columns. The crank arm of the pressure-opening / closing position sensor is hinged and mounted on the front panel of the mechanism. The auxiliary compression spring is set at one end of the crank arm of the pressure-opening / closing position sensor. The fixed crank arm is hinged and mounted at one end of the crank arm of the pressure-opening / closing position sensor. The electric drive device and interlocking baffle are mounted on the front plate of the mechanism. The output interface of the electric drive device is connected to the spline shaft. The input crank arm is connected to the spline shaft. The output crank arm is hinged to one end of the input crank arm through the input and output crank arm connecting rod. The position sensor and the position sensor are distributed circumferentially along the spline shaft. The position sensor and the position sensor are electrically connected to the electric drive device.

[0005] Preferably, a flashlight switching sensor is provided on the front panel of the mechanism.

[0006] Preferably, the flashlight switching sensor is equipped with a circuit breaker indicator.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, the interlocking baffle cuts off the hand flashlight switching sensor, ensuring that there is no interference between manual operation and electric operation, making it safer and more reliable. At the same time, it effectively solves the problem that existing designs do not have a motor and rely solely on manual operation, and even if a motor is installed, the way to operate the motor shaft is relatively complicated. 2. In this utility model, the electric isolation mechanism has a simple and reliable structure, and the transmission part is a four-bar linkage, which consumes little transmission energy and is easy to assemble and produce. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is the front view of the electric isolation mechanism of this utility model.

[0010] Figure 2 This is a right view of the electric isolation mechanism of this utility model.

[0011] Figure 3 This is a schematic diagram of the front panel of the mechanism of this utility model.

[0012] Figure 4 This is a schematic diagram of the closing and opening of the circuit breaker of this utility model.

[0013] In the diagram: 1. Crank arm for pressure / open / close position sensor; 2. Fixed crank arm; 3. Auxiliary compression spring; 4. Closed position sensor; 5. Open position sensor; 6. Electric drive device; 7. Open / close indicator; 8. Manual / electric switch sensor; 9. Front plate of mechanism one; 10. Interlocking baffle; 11. Splined shaft; 12. Rear plate of mechanism; 13. Connecting column between front and rear plates of mechanism; 14. Front plate of mechanism two; 15. Front panel of mechanism; 16. Input crank arm; 17. Output crank arm; 18. Connecting rod between input and output crank arms. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figure 1-4As shown, this utility model provides an electric isolation mechanism, which includes a pressure-opening / closing position sensor crank arm 1, a fixed crank arm 2, an auxiliary compression spring 3, a closing position sensor 4, a disengaging position sensor 5, an electric drive device 6, a closing / opening indicator 7, a manual / electric switch sensor 8, a mechanism front plate 1 9, an interlocking baffle 10, a spline shaft 11, a mechanism rear plate 12, a mechanism front-rear plate connecting column 13, a mechanism front plate 2 14, a mechanism front panel 15, an input crank arm 16, an output crank arm 17, and an input and output crank arm connecting rod 18. The front plate 19, the front plate 2 14, the rear plate 12, and the front panel 15 of the mechanism are fixedly connected by the front and rear plate connecting column 13. The crank arm 1 of the pressure-opening and closing position sensor is hinged and installed on the front panel 15 of the mechanism. The auxiliary compression spring 3 is set at one end of the crank arm 1 of the pressure-opening and closing position sensor. The fixed crank arm 2 is hinged and installed at one end of the crank arm 1 of the pressure-opening and closing position sensor. The electric drive unit 6, the manual / electric switch sensor 8, the opening / closing indicator 7, and the interlocking baffle 10 are mounted on the front plate 9 of the mechanism. The interlocking baffle 10 naturally prevents interference between the manual and electric control mechanisms. When the mechanism is operated manually, the interlocking baffle 10 must be activated first, simultaneously disconnecting the manual / electric switch sensor 8. The output interface of the electric drive unit 6 is connected to the splined shaft 11, and the input crank arm 16 is connected to the splined shaft 11. The output crank arm 17 is hinged to the input crank arm 16 via the input and output crank arm connecting rod 18. At one end, the closing position sensor 4 and the opening position sensor 5 are distributed circumferentially along the spline shaft 11. The closing position sensor 4 and the opening position sensor 5 are electrically connected to the electric drive device 6. Both the closing position sensor 4 and the opening position sensor 5 are limit switches. The installation methods of the closing position sensor 4 and the opening position sensor 5 are the same. The installation method is simple and easy to replace. It can be implemented using existing technology. The opening position sensor 5 and the closing position sensor 4 can provide accurate position signals to the electric drive device 6, thereby determining whether the input crank arm 16 and the output crank arm 17 are in position, that is, to reliably and accurately perform opening and closing operations.

[0016] Working principle: Under the control of the electric drive device 6, the electric drive device 6 drives the spline shaft 11 to rotate clockwise. The input crank arm 16 is connected to the spline shaft 11, and the spline shaft 11 drives the input crank arm 16 to rotate clockwise. The input crank arm 16 is connected to the output crank arm 17 through the input and output crank arm connecting rod 18, thereby driving the closing operation of the isolating knife. Specifically, as shown in Figure 4, the closing diagram and the opening diagram are shown. In the design of this utility model, in order to ensure that the closing and opening of the mechanism can be controlled manually, when the interlocking baffle 10 is moved to the right to expose the operating hole, the interlocking baffle 10 will cut off the manual switch sensor 8, thus ensuring that the manual operation and electric operation are not interfered with each other.

[0017] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0018] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electrically isolated mechanism, characterized by The electric isolation mechanism includes a pressure-opening / closing sensor crank arm (1), a fixed crank arm (2), an auxiliary compression spring (3), a closing sensor (4), a separating sensor (5), an electric drive device (6), a mechanism front plate one (9), an interlocking baffle (10), a spline shaft (11), a mechanism rear plate (12), a mechanism front and rear plate connecting column (13), a mechanism front plate two (14), a mechanism front panel (15), an input crank arm (16), an output crank arm (17), and an input and output crank arm connecting rod (18). The front plate 1 (9), the front plate 2 (14), the rear plate (12) and the front panel (15) of the mechanism are fixedly connected by the front and rear plate connecting column (13); The crank arm (1) of the pressure-opening and closing position sensor is hinged on the front panel (15) of the mechanism, the auxiliary compression spring (3) is set at one end of the crank arm (1) of the pressure-opening and closing position sensor, and the fixed crank arm (2) is hinged on one end of the crank arm (1) of the pressure-opening and closing position sensor. The electric drive device (6) and the interlocking baffle (10) are mounted on the front plate (9) of the mechanism. The output interface of the electric drive device (6) is connected to the spline shaft (11). The input crank arm (16) is connected to the spline shaft (11). The output crank arm (17) is hinged to one end of the input crank arm (16) through the input and output crank arm connecting rod (18). The position sensor (4) and the position sensor (5) are distributed circumferentially along the spline shaft (11). The position sensor (4) and the position sensor (5) are electrically connected to the electric drive device (6).

2. The motorized isolation mechanism of claim 1, wherein, A hand flashlight switching sensor (8) is provided on the front panel (9) of the mechanism.

3. The motorized isolation mechanism of claim 2, wherein, The flashlight switching sensor (8) is equipped with a circuit breaker indicator (7).

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