A load switch mechanism with counting function

Abstract

A load switch mechanism with counting function, comprising a front plate, a main shaft and a counter are arranged on the front plate, an indicating piece for indicating the on-off state is fixed on the main shaft, a push plate linked with a micro switch is further arranged on the front plate, one end of the push plate is linked with the indicating piece, and the other end is provided with a push arm extending to the counter, the main shaft drives the indicating piece to rotate when closing, the indicating piece pushes the push plate to move through the rotating action, so that the push arm triggers the counter to count the on-off times. Through the technical scheme, the counter is automatically triggered to count at each closing operation, so that the real-time statistics of the on-off times of the program lock are realized, and the on-off times of the load switch and the action times of the program lock can be intuitively displayed.

Description

Technical Field

[0001] This utility model relates to a load switch mechanism with counting function, belonging to the field of three-station mechanisms. Background Technology

[0002] Load switches are commonly used switching devices in power distribution systems, widely applied in ring main units, prefabricated substations, and various low-voltage power distribution systems to enable circuit connection and disconnection. Load switches typically require clear on / off status indicators so that maintenance personnel can accurately determine the switch's operational status on-site, ensuring operational safety. Existing load switch mechanisms mostly employ mechanical linkage structures, where a main shaft drives an indicator to change angle, thus displaying the corresponding on / off position on the panel; this structure is relatively simple.

[0003] However, in actual operation, frequent operation of load switches can affect their internal mechanical structure, electrical lifespan, and overall reliability. Therefore, maintenance personnel usually need to record the number of times the switch is opened and closed to assess its service life, develop maintenance plans, or determine whether there are any abnormal operational risks. Currently, the recording of the number of opening and closing operations mostly relies on manual recording or external counting equipment, which not only increases the difficulty of operation and maintenance but also easily leads to problems such as incomplete records and inaccurate counting, making it impossible to achieve real-time and synchronous statistics on the number of load switch operations.

[0004] Existing technologies include some solutions for detecting the number of opening and closing cycles by adding microswitches or external counters. However, these solutions generally suffer from drawbacks such as complex structures, limited installation locations for the counting device, and unstable linkage with the opening and closing mechanism. For example, some solutions require separate triggering elements or additional transmission chains, increasing the number of components and limiting installation space, thus affecting the overall compactness and reliability of the load switch. Other solutions use indirect signal triggering methods, which are significantly affected by mechanical travel errors and are prone to counting errors. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a load switch mechanism with counting function.

[0006] A load switch mechanism with counting function includes a front plate, on which a main shaft and a counter are provided. An indicator for indicating the opening and closing status is fixed on the main shaft. The front plate is also provided with a push plate that is linked to a micro switch. One end of the push plate is linked to the indicator, and the other end is provided with a push arm that extends to the counter. When the main shaft is closed, it drives the indicator to rotate. The indicator pushes the push plate to move through the rotation, which causes the push arm to trigger the counter to count the opening and closing.

[0007] This technical solution automatically triggers a counter to count the number of times the load switch has been opened and closed during each closing operation, thus achieving real-time statistics. The indicator is directly fixed to the main shaft, and the rotational motion of the main shaft during the opening and closing process is transmitted to the push plate in real time and synchronously, enabling the push arm to stably trigger the counter. This reduces intermediate transmission links, avoids inaccurate counting caused by cumulative stroke errors or mechanical backlash, significantly improves counting accuracy and stability, and allows operation and maintenance personnel to promptly grasp the equipment's usage frequency and mechanical wear level, providing a basis for preventative maintenance and lifespan management. Simultaneously, the device has a simple structure, reliable response, and does not affect the original opening and closing functions of the load switch, effectively improving the safety of load switch operation and the stability of the system.

[0008] Preferably, the indicator is provided with a push block, and the push plate is provided with a push surface located in front of the push block in the open state. When the main shaft is closed, the push surface abuts against the push block, thereby driving the push plate to move and triggering the push arm to trigger the counter.

[0009] This technical solution involves setting a push block on the indicator and a corresponding push surface on the push plate. The movement of the push plate is indirectly achieved by the rotation of the indicator driven by the main shaft. When the main shaft is in the closing action, it drives the push plate to move smoothly, triggering the counter by moving the push arm. The counting action is synchronized with the actual closing state of the load switch, ensuring the accuracy and consistency of the counting process and avoiding miscounting or missed counts due to vibration or accidental contact.

[0010] Furthermore, the counter is rotatably provided with a moving rod, and the push arm includes a first connecting part fixedly provided on the side wall of the push plate. The first connecting arm extends towards the counter and is provided with a second connecting part that is inclined. The other end of the second connecting part is connected to a third connecting part. When the circuit is open, the moving rod is located in front of the second connecting part. When the circuit is switched from open to closed, the second connecting part pushes the moving rod to rotate, thereby causing the third connecting part to come into contact with the moving rod and rotate completely to lift up and trigger the counter.

[0011] This technical solution allows the push arm to gradually contact the moving rod and push it to rotate during the closing process in an inclined guiding manner, thereby smoothly triggering the counter to count and ensuring that the number of closing operations can still be stably counted under long-term operating conditions.

[0012] Preferably, the push plate is provided with a sliding groove, the front plate is provided with a fixed seat, the fixed seat is provided with a fixing pin that cooperates with the sliding groove, and the push plate can slide relative to the fixed seat through the fixing pin.

[0013] This technical solution allows the push plate to slide smoothly in a predetermined direction under the guidance and constraint of the fixed pin, thus achieving the function of limiting and guiding the push plate's movement. It effectively prevents the push plate from shifting, wobbling, or tilting during the application of force, ensuring that the transmission relationship between the push plate, the push arm, the indicator, and the counter remains accurate at all times.

[0014] Preferably, the push arm is arranged vertically relative to the front plate.

[0015] This technical solution can effectively reduce the impact of lateral force caused by offset or angular error during the push plate movement, ensuring that the push arm is subjected to uniform force and moves sensitively when triggering the counter, and avoiding jamming or false triggering during the counting process.

[0016] Preferably, the front panel is provided with a mounting base, and the counter is fixedly mounted on the front panel via the mounting base.

[0017] This technical solution allows the counter to be securely mounted on the front panel, ensuring that it does not shift or vibrate during the counting process.

[0018] The beneficial effects of this invention are as follows: A counter is automatically triggered during each closing operation, enabling real-time statistics on the number of times the load switch has been opened and closed. The indicator is directly fixed to the main shaft, and the rotational motion of the main shaft during opening and closing is transmitted to the push plate in real time and synchronously, allowing the push arm to stably trigger the counter. This reduces intermediate transmission links, avoids inaccurate counting caused by cumulative stroke errors or mechanical backlash, significantly improves counting accuracy and stability, and facilitates timely monitoring of equipment usage frequency and mechanical wear by operation and maintenance personnel, providing a basis for preventative maintenance and lifespan management. Furthermore, the device has a simple structure, reliable response, and does not affect the original opening and closing functions of the load switch, effectively improving the safety of load switch operation and the stability of the system. Attached Figure Description

[0019] 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, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; In the figure, 1 is the front plate; 11 is the fixed seat; 12 is the fixed pin; 13 is the mounting seat; 3 is the main shaft; 4 is the indicator; 41 is the push block; 6 is the counter; 61 is the moving rod; 7 is the push plate; 71 is the push surface; 72 is the slide; 73 is the push arm; 731 is the first connecting part; 732 is the second connecting part; and 733 is the third connecting part. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0022] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0023] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] like Figure 1-2 As shown, this is an embodiment of a load switch mechanism with a counting function according to the present invention. It includes a front plate 1, on which a main shaft 3 and a counter 6 are provided. An indicator 4 for indicating the opening and closing status is fixed on the main shaft 3. The front plate 1 is also provided with a push plate 7 that is linked to a micro switch 5. One end of the push plate 7 is linked to the indicator 4, and the other end is provided with a push arm 73 extending to the counter 6. When the main shaft 3 is closed, it drives the indicator 4 to rotate. The indicator 4 pushes the push plate 7 to move through the rotation, so that the push arm 73 triggers the counter 6 to count the closing status.

[0025] This technical solution automatically triggers counter 6 to count during each closing operation, while each opening and closing action triggers the counter only once, thus achieving real-time statistics on the number of times the load switch has been opened and closed. The indicator is directly fixed to the main shaft, and the rotational motion of the main shaft during the opening and closing process is transmitted to the push plate in real time and synchronously, enabling the push arm to stably trigger the counter. This reduces intermediate transmission links, avoids inaccurate counting caused by cumulative stroke errors or mechanical backlash, significantly improves counting accuracy and stability, and allows operation and maintenance personnel to promptly grasp the equipment's usage frequency and mechanical wear level, providing a basis for preventative maintenance and lifespan management. Simultaneously, the device has a simple structure, reliable response, and does not affect the original opening and closing functions of the load switch, effectively improving the safety of load switch operation and the stability of the system.

[0026] The indicator 4 is provided with a push block 41, and the push plate 7 is provided with a push surface 71 located in front of the push block 41 when the circuit is open. When the main shaft 3 is closed, the push surface 71 abuts against the push block 41, thereby driving the push plate 7 to move and drive the push arm 73 to trigger the counter 6.

[0027] This technical solution involves setting a push block 41 on the indicator 4 and a corresponding push surface 71 on the push plate 7. The movement of the push plate 7 is indirectly achieved by the rotation of the indicator 4 driven by the main shaft 3. When the main shaft 3 is in the closing action, it drives the push plate 7 to move smoothly, causing the push arm 73 to trigger the counter 6. The counting action is synchronized with the actual closing state of the load switch, ensuring the accuracy and consistency of the counting process and avoiding miscounting or missed counts due to vibration or accidental contact.

[0028] The counter 6 is rotatably provided with a moving rod 61. The push arm 73 includes a first connecting part 731 fixedly provided on the side wall of the push plate 7. The first connecting arm extends toward the counter 6 and is provided with a second connecting part 732 that is inclined. The other end of the second connecting part 732 is connected to a third connecting part 733. When the circuit is open, the moving rod 61 is located in front of the second connecting part 732. When the circuit is switched from open to closed, the second connecting part 732 pushes the moving rod 61 to rotate, thereby causing the third connecting part 733 to come into contact with the moving rod 61 and rotate completely to lift up and trigger the counter 6.

[0029] Through this technical solution, the push arm 73 can gradually contact the moving rod 61 in an inclined guiding manner during the closing process and push it to rotate, thereby smoothly triggering the counter 6 to count, ensuring that the number of closing times can still be stably counted under long-term operating conditions.

[0030] The push plate 7 is provided with a sliding groove 72, and the front plate 1 is provided with a fixed seat 11. The fixed seat 11 is provided with a fixing pin 12 that cooperates with the sliding groove 72. The push plate 7 can slide relative to the fixed seat 11 through the fixing pin 12.

[0031] Through this technical solution, the push plate 7 can slide smoothly in a predetermined direction under the guidance and constraint of the fixed pin 12, realizing the function of limiting and guiding the movement of the push plate 7. It effectively prevents the push plate 7 from deviating, shaking or tilting during the force process, and ensures that the transmission relationship between the push plate 7, the push arm 73, the indicator 4 and the counter 6 remains accurate at all times.

[0032] The push arm 73 is vertically positioned relative to the front plate 1. This technical solution effectively reduces the lateral force caused by offset or angular error during the movement of the push plate 7, ensuring that the push arm 73 is subjected to uniform force and moves sensitively when triggering the counter 6, and avoiding jamming or false triggering during the counting process.

[0033] The front panel 1 is provided with a mounting base 13, and the counter 6 is fixedly mounted on the front panel 1 through the mounting base 13.

[0034] With this technical solution, the counter 6 can be stably installed on the front panel 1, ensuring that it does not shift or vibrate during the closing counting process.

[0035] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

[0036] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A load switch mechanism with counting function, characterized in that: The device includes a front plate, on which a main shaft and a counter are provided. An indicator for indicating the opening and closing status is fixed on the main shaft. The front plate also has a push plate that is linked to a micro switch. One end of the push plate is linked to the indicator, and the other end has a push arm that extends to the counter. When the main shaft is closed, it drives the indicator to rotate. The indicator pushes the push plate to move through the rotation, which causes the push arm to trigger the counter to count the opening and closing.

2. The load switch mechanism as described in claim 1, characterized in that: The indicator is provided with a push block, and the push plate is provided with a push surface located in front of the push block in the open state. When the main shaft is closed, the push surface abuts against the push block, thereby driving the push plate to move and triggering the push arm to trigger the counter.

3. The load switch mechanism as described in claim 2, characterized in that: The counter is rotatably provided with a moving rod. The push arm includes a first connecting part fixed on the side wall of the push plate. The first connecting part extends toward the counter and is provided with a second connecting part that is inclined. The other end of the second connecting part is connected to a third connecting part. When the circuit is open, the moving rod is located in front of the second connecting part. When the circuit is switched from open to closed, the second connecting part pushes the moving rod to rotate, thereby causing the third connecting part to come into contact with the moving rod and rotate completely to lift up and trigger the counter.

4. The load switch mechanism as described in claim 1, characterized in that: The push plate is provided with a sliding groove, the front plate is provided with a fixed seat, the fixed seat is provided with a fixing pin that cooperates with the sliding groove, and the push plate can slide relative to the fixed seat through the fixing pin.

5. The load switch mechanism as described in claim 1, characterized in that: The push arm is vertically positioned relative to the front plate.

6. The load switch mechanism as described in claim 1, characterized in that: The front panel is provided with a mounting base, and the counter is fixedly mounted on the front panel via the mounting base.

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