A control switching mechanism for a measuring circuit breaker

Abstract

The application relates to a control switching mechanism of a measuring circuit breaker and belongs to the technical field of the measuring circuit breaker, which comprises a base plate installed on a shell cover, a protective shell fixed on the outer side surface of the base plate, and an installation gap arranged between the base plate and the protective shell; a micro switch capable of switching modes is fixed on the side surface of the base plate towards the protective shell, and an operation shaft capable of being manually controlled is rotatably installed; an adjusting plate is slidably arranged on the outer side surface of the protective shell, a trigger piece is fixed on the adjusting plate, a guide through hole is arranged on the protective shell and used for allowing the trigger piece to penetrate and be inserted into the installation gap, and the adjusting plate can reciprocatingly slide and be fixed between the operation shaft and the micro switch; according to the application, maintenance personnel can directly and intuitively judge the current operation mode of the circuit breaker by observing the position of the adjusting plate, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of measuring circuit breakers, and in particular to a control switching mechanism for measuring circuit breakers. Background Technology

[0002] In power systems, circuit breakers, as critical electrical protection devices, play a vital role in promptly disconnecting circuits when overloads, short circuits, or other faults occur, ensuring the stable operation of the power system and the safety of equipment. With the continuous growth of electricity demand and the advancement of smart grid construction, measurement circuit breakers have emerged. They not only possess the protective functions of traditional circuit breakers but also enable the measurement and monitoring of relevant circuit parameters, providing richer data support for the operation and management of power systems and becoming an indispensable component of modern power systems.

[0003] In related technologies, measuring circuit breakers typically consist of a housing and a cover, with core internal components including a breaking mechanism and an operating mechanism. Users can control the breaking mechanism's operation via the operating mechanism to switch the circuit on and off. The operating mechanism generally has two operating modes: automatic (remote) control mode and manual (on-site) control mode. Automatic control mode allows operators to manipulate the circuit breaker from a distance using specific control signals; manual control mode requires the operator to operate directly at the circuit breaker. An operating shaft is rotatably mounted on the housing. In manual control mode, the operator connects the operating handle to the operating shaft and rotates it, thereby actuating the breaking mechanism through the operating mechanism to complete the circuit switching operation.

[0004] However, in practical applications, especially when overhauling measuring circuit breakers, a significant problem has emerged: maintenance personnel cannot intuitively determine the current operating mode of a circuit breaker. Since different operating modes can affect the safety and effectiveness of maintenance operations, personnel sometimes have to rely on specialized tools to help determine the circuit breaker's operating mode. This process not only increases the complexity and time cost of maintenance work but also reduces efficiency, leaving room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a control switching mechanism for measuring circuit breakers, thereby solving the problem that the operating mode of circuit breakers cannot be intuitively determined in the aforementioned related technologies.

[0006] The control switching mechanism for measuring circuit breakers provided in this application adopts the following technical solution:

[0007] A control switching mechanism for measuring circuit breakers includes a base plate mounted on a housing cover. A protective shell is fixed to the outer surface of the base plate, and an installation gap is provided between the base plate and the protective shell. A micro switch capable of switching modes is fixed to the side of the base plate facing the protective shell, and an operating shaft capable of manual operation is rotatably mounted thereon. An adjusting plate is slidably mounted on the outer surface of the protective shell, and a trigger is fixed to the adjusting plate. A guide hole is provided on the protective shell for the trigger to pass through and be inserted into the installation gap. The adjusting plate can reciprocate and be fixed between the operating shaft and the micro switch. When the adjusting plate slides closer to the micro switch, it can trigger the micro switch to switch to manual mode and release the operation port blockage. When the adjusting plate slides closer to the operating shaft, it can stop triggering the micro switch to switch to automatic mode and block the operation port.

[0008] By adopting the above technical solution, when the adjusting plate slides close to the micro switch, it triggers the micro switch to switch to manual mode and releases the blockage of the operating port; when it slides close to the operating shaft, it stops triggering the micro switch to switch to automatic mode and blocks the operating port. This design allows maintenance personnel to intuitively determine the current operating mode of the circuit breaker by observing the position of the adjusting plate, without the need for other special tools. This greatly simplifies the maintenance operation process, reduces the complexity and time cost of maintenance work, improves maintenance efficiency, and also reduces the risk of misoperation that may be caused by unclear operating modes, ensuring the safe and stable operation of the equipment.

[0009] Optionally, the trigger includes a fixing block inserted into a guide hole and a trigger plate fixed to one side of the fixing block. The trigger plate is located within the installation gap, and the side of the fixing block away from the trigger plate is detachably connected to the adjustment plate.

[0010] By adopting the above technical solution, the trigger plate is located within the installation gap, enabling accurate and stable cooperation with the micro switch. When the adjusting plate slides, the trigger plate can move synchronously with the fixed block, precisely triggering or stopping the micro switch and achieving reliable switching of operating modes. Moreover, the detachable connection method provides flexibility for the overall design of the mechanism, allowing the connection relationship between the trigger element and the adjusting plate to be adjusted according to actual needs, optimizing the mechanism's performance and ensuring that the measuring circuit breaker can operate stably and accurately in different operating modes.

[0011] Optionally, the adjusting plate has two limiting plates fixedly mounted on its side facing the base plate, and limiting hooks are fixedly mounted on the side edges of the two limiting plates that are far apart from each other; the fixing block has a limiting through hole for the limiting plates to be inserted on its side away from the trigger plate, and a limiting groove for the limiting hooks to be engaged on the inner wall of the limiting through hole.

[0012] By adopting the above technical solution, the adjusting plate is equipped with two opposing limit plates and limit hooks, and the fixing block has corresponding limit through holes and limit slots. During assembly, the limit plates are inserted into the limit through holes, and the limit hooks are engaged with the limit slots. This locking structure ensures a stable connection between the two, guaranteeing that the adjusting plate can stably drive the trigger element to move when sliding, thus achieving reliable operation mode switching. Simultaneously, this detachable connection method facilitates subsequent maintenance and replacement of the trigger element, reducing maintenance difficulty and cost. Moreover, the design of the matching of the limit plates and limit hooks, and the limit through holes and limit slots, results in a simple structure that is easy to manufacture, improving production efficiency.

[0013] Optionally, the protective shell has two guide protrusions fixedly disposed on the side facing the substrate, with their length direction parallel to the guide through hole; the two guide protrusions are disposed opposite each other on both sides of the guide through hole, and the opposite sides of the trigger plate can abut against the sides of the two guide protrusions that are close to each other.

[0014] By adopting the above technical solution, two guide protrusions parallel to the guide through holes are fixed on the protective shell and located on both sides of the guide through holes. The sides of the trigger plate can abut against the sides of the guide protrusions. This design provides precise guidance for the sliding of the trigger plate, enabling it to move stably along a predetermined direction under the action of the adjusting plate. This ensures the accuracy of the triggering or stopping action between the trigger plate and the micro switch, thereby ensuring the reliability of the operation mode switching.

[0015] Optionally, elastic snap-fit ​​members are fixed on the opposite two sides of the trigger plate, and a number of positioning grooves are provided on the sides of the two guide protrusions that are close to each other along their own length direction for the elastic snap-fit ​​members to be elastically snapped into.

[0016] By adopting the above technical solution, when the adjustment plate drives the trigger plate to slide to the appropriate position, the elastic locking component can engage with the corresponding positioning groove, fixing the positions of the trigger plate and the adjustment plate. This ensures the stability of the state after the operation mode is switched and avoids unexpected changes in the mode due to external forces or other factors. Simultaneously, the elastic locking component is elastic; when the user applies force to slide the adjustment plate, the elastic locking component can disengage from the positioning groove, enabling free switching of modes and convenient operation.

[0017] Optionally, the protective shell has a guide groove on the side away from the substrate for the adjustment plate to be inserted and slid.

[0018] By adopting the above technical solution, this design provides a clear and stable path for the sliding of the adjustment plate, effectively preventing deviation or wobbling during the sliding process. This ensures precise movement in the preset direction, guaranteeing accurate coordination between the trigger, microswitch, and operating shaft, thus improving the reliability and stability of operation mode switching. Simultaneously, the guide groove also provides some protection for the adjustment plate, reducing interference from external factors. Furthermore, this design cleverly utilizes space to house the adjustment plate, reducing the overall volume of the protective shell and the adjustment plate, making the entire control switching mechanism more compact and rational, and facilitating installation and use.

[0019] Optionally, the adjustment plate has a marking groove on the side away from the protective shell.

[0020] By adopting the above technical solution, this design provides operators with intuitive information prompts. On the one hand, the marking groove can accommodate markings such as "manual" and "automatic," allowing operators to quickly and clearly know the current operating mode of the circuit breaker without having to consult additional documents or make complex judgments, greatly improving the convenience and efficiency of operation. On the other hand, the marking groove can protect the markings, preventing them from becoming blurred due to friction and scratches during daily use, ensuring the durability and readability of the markings.

[0021] Optionally, the adjusting plate has a lever fixed in the middle of the bottom side of the marking groove.

[0022] By adopting the above technical solution, operators can directly move the toggle block by hand to slide the adjustment plate without the need for other tools, making the operation simpler and faster. At the same time, the toggle block is located in the center of the bottom of the marking groove, making it easily visible and convenient for applying force, allowing operators to easily and accurately switch the circuit breaker's operating mode.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] When the regulating plate slides close to the microswitch, it triggers the microswitch to switch to manual mode and releases the blocking of the operating port; when it slides close to the operating shaft, it stops triggering the microswitch to switch to automatic mode and blocks the operating port. This design allows maintenance personnel to intuitively determine the current operating mode of the circuit breaker by observing the position of the regulating plate, without the need for other special tools. This greatly simplifies the maintenance process, reduces the complexity and time cost of maintenance work, and improves maintenance efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 This is an exploded structural diagram of an embodiment of this application;

[0028] Figure 3 This is a partial cross-sectional view of the installation and assembly of the adjustment plate according to an embodiment of this application;

[0029] Figure 4 This is a partial cross-sectional view of an embodiment of the present application illustrating the insertion and engagement of the limiting plate and the limiting through hole;

[0030] Figure 5 This is a schematic diagram illustrating the installation and distribution of the elastic snap-fit ​​component and the guide protrusion in an embodiment of this application.

[0031] In the diagram, 1 is the base plate; 11 is the micro switch; 12 is the operating shaft; 2 is the protective shell; 21 is the guide through hole; 22 is the guide protrusion; 221 is the positioning groove; 23 is the guide recess; 3 is the adjusting plate; 31 is the limit plate; 32 is the limit hook; 33 is the marking groove; 34 is the toggle block; 4 is the trigger element; 41 is the fixing block; 411 is the limit through hole; 412 is the limit groove; 42 is the trigger plate; 43 is the elastic snap-fit ​​element; 431 is the elastic snap-fit ​​plate; 432 is the arc-shaped protrusion. Detailed Implementation

[0032] The present application will be further described in detail below with reference to all the accompanying drawings.

[0033] Example:

[0034] Reference Figure 1 , Figure 2 and Figure 3 A control switching mechanism for measuring circuit breakers includes a base plate 1 mounted on a housing cover, wherein a protective housing 2 is mounted on the outer side of the base plate 1 by screws, and an installation gap is provided between the base plate 1 and the protective housing 2; a micro switch 11 capable of switching modes is fixed on the side of the base plate 1 facing the protective housing 2, and an operating shaft 12 capable of manual operation is rotatably mounted thereon.

[0035] An adjustment plate 3 is slidably provided on the outer side of the protective shell 2. A trigger 4 is fixed on the side of the adjustment plate 3 facing the base plate 1. A guide hole 21 is provided on the protective shell 2 for the trigger 4 to pass through and be inserted into the installation gap. The adjustment plate 3 can slide back and forth between the operating shaft 12 and the micro switch 11 and be fixed.

[0036] When the adjusting plate 3 slides closer to the micro switch 11, it can trigger the micro switch 11 through the trigger 4 and switch the operating mechanism inside the circuit breaker to manual mode, and can also unblock the operating port 24; when the adjusting plate 3 slides closer to the operating shaft 12, it can stop the trigger 4 from triggering the micro switch 11, switch the operating mechanism inside the circuit breaker to automatic mode, and use the adjusting plate 3 to block the operating port 24.

[0037] Reference Figure 2 and Figure 3 The protective shell 2 has a guide groove 23 on the side away from the substrate 1 for the adjustment plate 3 to be inserted and slid, so as to further limit the sliding of the adjustment plate 3 and accommodate the adjustment plate 3 in the guide groove 23, thereby reducing the overall volume of the protective shell 2 and the adjustment plate 3.

[0038] Reference Figure 2 and Figure 3 The adjustment plate 3 has an marking groove 33 on the side away from the protective shell 2. A lever 34 is integrally formed in the middle of the bottom side of the marking groove 33. The lever 34 divides the marking groove 33 into two parts, and "manual" and "automatic" markings can be set in the area of ​​the marking groove 33 by laser marking.

[0039] The user can use the lever 34 to drive the adjustment plate 3 to slide quickly. Sliding it upward will expose the operation port 24 and trigger the micro switch 11, which will adjust it to manual (on-site) mode. Sliding it downward will stop triggering the micro switch 11 and block the operation port 24, which will adjust it to automatic (remote) mode.

[0040] Reference Figure 4 and Figure 5 The trigger 4 includes a fixing block 41 inserted into the guide through hole 21 and a trigger plate 42 fixed on one side of the fixing block 41, wherein the trigger plate 42 is located in the installation gap; the adjusting plate 3 has two opposing limiting plates 31 integrally formed on the side facing the base plate 1, and limiting hooks 32 are fixed on the side edges of the two limiting plates 31 that are far apart from each other.

[0041] A limiting through hole 411 is provided on the side of the fixing block 41 away from the trigger plate 42, and a limiting slot 412 is provided on the inner wall of the limiting through hole 411. When assembling the adjusting plate 3 and the fixing block 41, the two limiting plates 31 on the adjusting plate are inserted into the limiting through hole 411, and the limiting hooks 32 are engaged into the corresponding limiting slots 412, so as to achieve a detachable connection between the side of the fixing block 41 away from the trigger plate 42 and the adjusting plate 3.

[0042] Reference Figure 5 The protective shell 2 has two guide protrusions 22 fixed on the side facing the substrate 1, with the length direction parallel to the guide through hole 21; the two guide protrusions 22 are arranged opposite to each other on both sides of the guide through hole 21, wherein the opposite sides of the trigger plate 42 can abut against the sides of the two guide protrusions 22 that are close to each other.

[0043] Elastic snap-fit ​​members 43 are fixed on opposite sides of the trigger plate 42. Specifically, the elastic snap-fit ​​members 43 are elastic snap-fit ​​plates 431 integrally formed on the trigger plate 42. Arc-shaped protrusions 432 are integrally formed on the elastic snap-fit ​​plates 431. Several positioning grooves 221 for the arc-shaped protrusions 432 to snap into are opened along their own length direction on the side of the two guide protrusions 22 that are close to each other.

[0044] When the adjusting plate 3 drives the trigger plate 42 to slide to a certain position (for example, when sliding upwards, it triggers the micro switch 11, and when sliding downwards, it blocks the operation port 24), the arc-shaped protrusion 432 can be inserted into the corresponding positioning groove 221 to fix the sliding state of the adjusting plate 3; moreover, the elastic plate 431 has elastic deformation properties, and when the user applies force to drive the adjusting plate 3 to slide, the arc-shaped protrusion 432 can be dislodged from the positioning groove 221 again.

[0045] The implementation principle of this application embodiment is as follows:

[0046] In manual mode, the user slides the adjustment plate 3 upwards. The adjustment plate 3 slides within the guide groove 23 of the protective shell 2, causing the trigger plate 42 to slide along the guide protrusion 22. The arc-shaped protrusion 432 on the elastic retaining plate 431 disengages from the positioning groove 221. After the adjustment plate 3 slides to the appropriate position, the arc-shaped protrusion 432 engages with the new positioning groove 221 and is fixed. The trigger plate 42 triggers the micro switch 11 to switch the operating mechanism inside the circuit breaker to manual mode, and at the same time releases the blockage of the operating port 24, allowing the user to manually operate the circuit breaker.

[0047] In automatic mode, the user slides the adjustment plate 3 down, the trigger 4 moves away from the micro switch 11, and stops triggering it. The arc-shaped protrusion 432 comes out again and is locked into the new positioning groove 221, switching the operating mechanism inside the circuit breaker to automatic mode. At the same time, the adjustment plate 3 blocks the operating port 24, and the circuit breaker operating mechanism is automatically controlled to avoid manual misoperation and ensure the safe and stable operation of the equipment.

[0048] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A control switching mechanism for measuring circuit breakers, comprising a base plate (1) mounted on a housing cover, a protective shell (2) fixedly disposed on the outer side of the base plate (1), and an installation gap provided between the base plate (1) and the protective shell (2); a micro switch (11) capable of switching modes is fixedly disposed on the side of the base plate (1) facing the protective shell (2), and an operating shaft (12) capable of manual operation is rotatably mounted thereon; Its features are, An adjustment plate (3) is slidably provided on the outer side of the protective shell (2), and a trigger (4) is fixed on the adjustment plate (3). A guide hole (21) is provided on the protective shell (2) for the trigger (4) to pass through and be inserted into the installation gap. The adjustment plate (3) can slide back and forth and be fixed between the operating shaft (12) and the micro switch (11). When the adjustment plate (3) slides toward the micro switch (11), it can trigger the micro switch (11) to switch to manual mode and release the blockage of the operation port (24); when the adjustment plate (3) slides toward the operation shaft (12), it can stop triggering the micro switch (11) to switch to automatic mode and block the operation port (24).

2. The control switching mechanism for measuring circuit breakers according to claim 1, characterized in that, The trigger (4) includes a fixing block (41) inserted into the guide through hole (21) and a trigger plate (42) fixed on one side of the fixing block (41). The trigger plate (42) is located in the installation gap. The side of the fixing block (41) away from the trigger plate (42) is detachably connected to the adjustment plate (3).

3. The control switching mechanism for measuring circuit breakers according to claim 2, characterized in that, The adjusting plate (3) has two limiting plates (31) fixedly mounted on its side facing the base plate (1), and limiting hooks (32) are fixedly mounted on the side edges of the two limiting plates (31) that are far apart from each other; the fixing block (41) has a limiting through hole (411) for the limiting plates (31) to be inserted on its side away from the trigger plate (42), and a limiting groove (412) for the limiting hooks (32) to be engaged on the inner wall of the limiting through hole (411).

4. The control switching mechanism for measuring circuit breakers according to claim 2, characterized in that, The protective shell (2) has two guide protrusions (22) that are parallel to the guide through hole (21) in length direction fixed on the side facing the substrate (1); the two guide protrusions (22) are arranged opposite to each other on both sides of the guide through hole (21), and the opposite sides of the trigger plate (42) can abut against the sides of the two guide protrusions (22) that are close to each other.

5. The control switching mechanism for measuring circuit breakers according to claim 4, characterized in that, The trigger plate (42) is fixed with elastic snap-fit ​​members (43) on its opposite two sides, and the two guide protrusions (22) are provided with a number of positioning grooves (221) along their own length direction on their sides that are close to each other, for the elastic snap-fit ​​members (43) to be elastically snapped into.

6. The control switching mechanism for measuring circuit breakers according to claim 1, characterized in that, The protective shell (2) has a guide groove (23) on the side away from the base plate (1) for the adjustment plate (3) to be inserted and slid.

7. The control switching mechanism for measuring circuit breakers according to claim 1, characterized in that, The adjustment plate (3) has a marking groove (33) on the side away from the protective shell (2).

8. The control switching mechanism for measuring circuit breakers according to claim 7, characterized in that, The adjusting plate (3) has a lever (34) fixedly installed in the middle of the bottom side of the marking groove (33).

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