Anti-misoperation safety protection device for circuit breaker

Abstract

The invention relates to a circuit breaker anti-misoperation safety protection device which comprises a circuit breaker main body, the circuit breaker main body is installed in a power distribution cabinet, the circuit breaker main body comprises two clamping parts, the two clamping parts are symmetrically arranged on the two sides of the circuit breaker main body, each clamping part comprises a vertical clamping device and a horizontal clamping device, and the vertical clamping device and the horizontal clamping device are symmetrically arranged on the two sides of the circuit breaker main body. Vertical clamping jaws are movably arranged at the upper end and the lower end of the vertical clamping device correspondingly, a horizontal clamping jaw is movably arranged on the rear side of the horizontal clamping device, and adjusting mechanisms are arranged on the outer sides of the two clamping parts correspondingly. The protection part comprises a frame body, the two sides of the frame body are fixedly connected with the clamping part, and a baffle is movably arranged on the front side of the frame body; the device integrates three functions of mechanical self-adaptive clamping, transparent physical isolation and electrical monitoring and early warning, provides an omnibearing, high-reliability and intelligent circuit breaker safety scheme, and greatly improves the safety level of an electric power operation site.

Description

Technical Field

[0001] This invention belongs to the technical field of power protection auxiliary equipment, specifically relating to a circuit breaker anti-misoperation safety protection device. Background Technology

[0002] In the operation and maintenance of power systems, circuit breakers are one of the most critical control and protection components within distribution cabinets. The power supply circuits of distribution cabinets typically use low-voltage circuit breakers. During operation, these low-voltage circuit breakers can be switched on and off as needed simply by moving a handle up or down. Their opening and closing status directly affects the continuity of the line, the safety of equipment, and the lives of operators. Therefore, preventing circuit breakers from being misoperated, such as switching on or off under load or accidentally entering a energized compartment, is a crucial aspect of ensuring safe power production.

[0003] Currently, in substations, distribution rooms, and other locations, prevention of circuit breaker misoperation mainly relies on traditional organizational measures, such as work permits and operation permits, and technical measures, such as mechanical locks and electronic five-proof systems. However, these existing methods still have certain limitations in practical applications. For example, the lack of physical protection measures means that circuit breakers can be opened or closed due to accidental contact or impact during daily use. Furthermore, there is no clear warning effect after personnel accidentally open or close the circuit breaker, which can easily lead to the continuous occurrence of erroneous actions and cause continuous harm. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circuit breaker anti-misoperation safety protection device.

[0005] The objective of this invention is achieved as follows: A circuit breaker anti-misoperation safety protection device, comprising a circuit breaker body, wherein the circuit breaker body is installed inside a distribution cabinet, and includes: Two clamping parts are symmetrically arranged on both sides of the circuit breaker body. Each clamping part includes a vertical clamp and a horizontal clamp. The vertical clamp has vertical jaws movably arranged at both the upper and lower ends. The horizontal clamp has horizontal jaws movably arranged at the rear side. An adjustment mechanism is provided on the outer side of each clamping part. The protective part includes a frame, with both sides of the frame fixedly connected to the clamping part, and a baffle movably disposed on the front side of the frame. The protective part and the clamping part are an integral structure, and have different specifications for different models of circuit breakers.

[0006] The baffle is made of transparent acrylic sheet.

[0007] The two vertical grippers are symmetrically arranged with opposing racks at one end, and the horizontal gripper has a unidirectional rack fixed inside. The opposing racks can be used to adjust the two vertical grippers simultaneously.

[0008] The adjustment mechanism includes an adjustment rod with a handle at its outer end. A first drive gear is located on the side of the adjustment rod near the clamping part, meshing with an opposing rack. A second drive gear is located on the side of the adjustment rod away from the clamping part, meshing with a one-way rack. The vertical and horizontal clamps can be adjusted synchronously using a single adjustment rod.

[0009] Both the first and second drive gears have rod grooves inside. The first and second drive gears have embedded grooves on their sides that are close to each other. Embedded gears are symmetrically arranged on the outside of the adjusting rod. The embedded gears and embedded grooves cooperate with each other.

[0010] A drive block is movably disposed in the middle of the adjusting rod, and push rods are fixedly disposed on both sides of the drive block.

[0011] Both the first and second drive gears are equipped with return springs between their outer sides and the adjustment mechanism. The vertical and horizontal clamps can be individually adjusted via the embedded gears and drive blocks.

[0012] To prevent the adjusting lever from reversing, a locking module, such as a ratchet mechanism, can be set up. This is prior art and will not be described in this application.

[0013] The frame is provided with a sliding groove on its side, the baffle is provided with a slider on its side, and a handle is fixedly provided on the front side of the baffle.

[0014] A monitoring mechanism is provided on the outside of the protective part. The monitoring mechanism includes a main unit. An audible and visual device is provided on the outside of the main unit. An upper contact is fixedly provided on the upper side inside the slide. A lower contact is fixedly provided on the upper side of the slider. Wires are provided between the main unit and the upper and lower contacts.

[0015] The monitoring agency can connect to the host system via the communication module to monitor the opening and closing status of the baffle in real time.

[0016] The beneficial effects of this invention are: The device firmly clamps and fixes the circuit breaker from both sides through two clamping parts, and together with the transparent baffle on the front, it forms a sturdy protective cover, which fundamentally isolates the circuit breaker operating handle from the outside world, effectively avoiding accidental opening and closing accidents caused by accidental contact, and is extremely safe.

[0017] The unique gear and rack transmission adjustment mechanism design allows for simultaneous opposite movement of the upper and lower vertical grippers by rotating a single adjustment lever. This accommodates circuit breakers of different heights and the rearward movement of the horizontal grippers, enabling them to clamp the circuit breaker from the rear and adapt to installation spaces of varying depths. Its versatility enhances its practical value. Furthermore, it can be set to an independent adjustment mode, broadening its applicability.

[0018] The monitoring unit and the host system work together to form a second line of defense. When the baffle is abnormally lifted, the slider contacts the point in the groove, and the monitoring unit can immediately send an alarm signal to the host system and trigger the audible and visual alarm to remind surrounding personnel of the risk of misoperation, thus upgrading from "passive protection" to "active early warning".

[0019] This device integrates three major functions: mechanical adaptive clamping, transparent physical isolation, and electrical monitoring and early warning. It effectively overcomes many shortcomings of traditional anti-misoperation measures and provides a comprehensive, highly reliable, and intelligent circuit breaker safety solution, greatly improving the safety level of power operation sites. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a distribution cabinet for a circuit breaker anti-misoperation safety protection device according to the present invention.

[0021] Figure 2 This is a structural diagram of the main body of a circuit breaker according to the present invention, which is a safety protection device for preventing misoperation of a circuit breaker.

[0022] Figure 3 This is a structural diagram of the clamping part of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0023] Figure 4 This is a diagram showing the internal structure of the vertical clamp of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0024] Figure 5 This is an overall structural diagram of the adjustment mechanism of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0025] Figure 6 This is a front view of the adjustment mechanism of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0026] Figure 7 This is a diagram showing the internal structure of the first drive gear in a circuit breaker anti-misoperation safety protection device according to the present invention.

[0027] Figure 8 This is a structural diagram of the protective part of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0028] Figure 9This is a structural diagram of the internal structure of the frame of a circuit breaker anti-misoperation safety protection device according to the present invention.

[0029] In the diagram: 1. Circuit breaker body; 2. Distribution cabinet; 3. Clamping part; 4. Protective part; 5. Vertical clamp; 6. Horizontal clamp; 7. Vertical jaw; 8. Horizontal jaw; 9. Adjustment mechanism; 10. Frame; 11. Baffle; 12. Opposing rack; 13. One-way rack; 14. Adjusting rod; 15. Turn handle; 16. First drive gear; 17. Second drive gear; 18. Embedded gear; 19. Embedded groove; 20. Rod groove; 21. Drive block; 22. Push rod; 23. Handle; 24. Return spring; 25. Slide groove; 26. Slider; 27. Handle; 28. Main unit; 29. ​​Audible and visual device; 30. Upper contact; 31. Lower contact; 32. Wire; 33. Monitoring mechanism. Detailed Implementation

[0030] The present invention will now be further described with reference to the accompanying drawings. Example 1

[0031] like Figure 1-3 As shown, a circuit breaker anti-misoperation safety protection device is disclosed. This device includes a circuit breaker body 1, which is installed inside a distribution cabinet 2. The device comprises: Two clamping parts 3 are symmetrically arranged on both sides of the circuit breaker body 1. Each clamping part 3 includes a vertical clamp 5 and a horizontal clamp 6. The vertical clamp 5 has vertical jaws 7 movably arranged at both the upper and lower ends. The horizontal clamp 6 has horizontal jaws 8 movably arranged at the rear side. An adjustment mechanism 9 is provided on the outer side of each clamping part 3. The protective part 4 includes a frame 10, which is fixedly connected to the clamping part 3 on both sides. A baffle 11 is movably disposed on the front side of the frame 10. The protective part 4 and the clamping part 3 are an integral structure and have different specifications for different types of circuit breakers.

[0032] The adjustment mechanism 9 enables this device to be quickly and accurately adapted to circuit breakers of different models and sizes.

[0033] Furthermore, the baffle 11 is made of transparent acrylic sheet. This allows operators to clearly observe the opening and closing status and markings of the circuit breaker body 1 without opening the protective part 4, thus balancing safety and inspection convenience.

[0034] When using this invention, check whether the clamping parts 3, protective parts 4, and adjusting mechanisms 9 of the device are intact and free from damage or deformation. Adjust the vertical jaws 7 inside the vertical clamp 5 and the horizontal jaws 8 inside the horizontal clamp 6 to a sufficient installation distance. Place the entire device onto the circuit breaker body 1 that needs protection, with the two clamping parts 3 located on the left and right sides of the circuit breaker body 1 respectively. Ensure that the frame 10 of the protective part 4 faces the circuit breaker operating handle, and that the baffle 11 covers the front of the operating handle without affecting its normal operation. Adjust the vertical clamp 5 and horizontal clamp 6 using the adjusting mechanism 9 to ensure a tight connection between the vertical jaws 7 and horizontal jaws 8 and the circuit breaker body 1. Example 2

[0035] like Figure 1-7 As shown, a circuit breaker anti-misoperation safety protection device is disclosed. This device includes a circuit breaker body 1, which is installed inside a distribution cabinet 2. The device comprises: Two clamping parts 3 are symmetrically arranged on both sides of the circuit breaker body 1. Each clamping part 3 includes a vertical clamp 5 and a horizontal clamp 6. The vertical clamp 5 has vertical jaws 7 movably arranged at both the upper and lower ends. The horizontal clamp 6 has horizontal jaws 8 movably arranged at the rear side. An adjustment mechanism 9 is provided on the outer side of each clamping part 3. The protective part 4 includes a frame 10, which is fixedly connected to the clamping part 3 on both sides. A baffle 11 is movably disposed on the front side of the frame 10. The protective part 4 and the clamping part 3 are an integral structure and have different specifications for different types of circuit breakers.

[0036] The adjustment mechanism 9 enables this device to be quickly and accurately adapted to circuit breakers of different models and sizes.

[0037] Furthermore, the baffle 11 is made of transparent acrylic sheet. This allows operators to clearly observe the opening and closing status and markings of the circuit breaker body 1 without opening the protective part 4, thus balancing safety and inspection convenience.

[0038] Furthermore, the two vertical grippers 7 are symmetrically provided with opposing racks 12 at one end close to each other, and the horizontal gripper 8 is fixedly provided with a unidirectional rack 13 inside.

[0039] Furthermore, the adjustment mechanism 9 includes an adjustment rod 14, with a handle 15 at its outer end. A first drive gear 16 is located on the side of the adjustment rod 14 near the clamping part 3, meshing with an opposing rack 12. A second drive gear 17 is located on the side of the adjustment rod 14 away from the clamping part 3, meshing with a one-way rack 13. The entire device can be easily installed and locked simply by rotating the handles 15 on both sides, without the need for any additional tools.

[0040] Furthermore, both the first drive gear 16 and the second drive gear 17 are provided with rod grooves 20 inside. An inner groove 19 is provided on the side of the first drive gear 16 and the second drive gear 17 that is close to each other. Inner gears 18 are symmetrically arranged on the outer side of the adjusting rod 14, and the inner gears 18 cooperate with the inner grooves 19. The adjusting rod 14 is inserted into the rod groove 20, and through the cooperation of the inner gears 18 and the inner grooves 19, the adjusting rod 14 drives the rotation of the first drive gear 16 and the second drive gear 17.

[0041] Furthermore, a drive block 21 is movably disposed in the middle of the adjusting rod 14, and push rods 22 are fixedly disposed on both sides of the drive block 21.

[0042] Furthermore, a return spring 24 is provided between the outer side of the first drive gear 16 and the second drive gear 17 and the adjusting mechanism 9. The return spring 24 is used to maintain the position of the first drive gear 16 and the second drive gear 17.

[0043] In another embodiment, the adjusting mechanism 9 is preferably used as follows: when coarsely adjusting the vertical clamp 5 and the horizontal clamp 6 simultaneously, the handle 15 of the adjusting rod 14 is rotated. When the handle 15 is rotated, the first drive gear 16 on the adjusting rod 14 rotates accordingly, driving the opposing racks 12 on both sides, so that the upper and lower vertical jaws 7 move synchronously towards each other, clamping the circuit breaker body 1 from both upper and lower directions. At the same time, the second drive gear 17 on the adjusting rod 14 rotates, driving the one-way rack 13 inside the horizontal jaw 8, so that the horizontal jaw 8 moves forward, pressing against the circuit breaker body 1 from the rear, forming a stable three-point clamping structure. This ensures that both the vertical jaws 7 and the horizontal jaws 8 are firmly clamped to the circuit breaker body 1.

[0044] Furthermore, depending on the actual situation, the vertical clamp 5 and the horizontal clamp 6 can be adjusted separately. When the vertical clamp 5 needs to be adjusted separately: the handle 23 moves the drive block 21 towards the second drive gear 17. The drive block 21 pushes the second drive gear 17 outward via the push rod 22, compressing the return spring 24. The internal groove 19 of the second drive gear 17 disengages from the embedded gear 18. At this time, rotating the adjusting rod 14 only allows the first drive gear 16 to rotate through the engagement of the internal groove 19 and the embedded gear 18, thus allowing adjustment of the vertical clamp 5. Similarly, when the horizontal clamp 6 needs adjustment, the handle 23 moves the drive block 21 towards the first drive gear 16. The drive block 21 pushes the first drive gear 16 outward via the push rod 22, thus allowing adjustment of the horizontal clamp 6. This structure allows for separate adjustment of the vertical clamp 5 and the horizontal clamp 6, increasing the applicability of the device. Example 3

[0045] like Figure 1-9 As shown, a circuit breaker anti-misoperation safety protection device includes a circuit breaker body 1, which is installed inside a distribution cabinet 2, and includes: Two clamping parts 3 are symmetrically arranged on both sides of the circuit breaker body 1. Each clamping part 3 includes a vertical clamp 5 and a horizontal clamp 6. The vertical clamp 5 has vertical jaws 7 movably arranged at both the upper and lower ends. The horizontal clamp 6 has horizontal jaws 8 movably arranged at the rear side. An adjustment mechanism 9 is provided on the outer side of each clamping part 3. The protective part 4 includes a frame 10, which is fixedly connected to the clamping part 3 on both sides. A baffle 11 is movably disposed on the front side of the frame 10. The protective part 4 and the clamping part 3 are an integral structure and have different specifications for different types of circuit breakers.

[0046] The adjustment mechanism 9 enables this device to be quickly and accurately adapted to circuit breakers of different models and sizes.

[0047] Furthermore, the baffle 11 is made of transparent acrylic sheet. This allows operators to clearly observe the opening and closing status and markings of the circuit breaker body 1 without opening the protective part 4, thus balancing safety and inspection convenience.

[0048] Furthermore, the two vertical grippers 7 are symmetrically provided with opposing racks 12 at one end close to each other, and the horizontal gripper 8 is fixedly provided with a unidirectional rack 13 inside.

[0049] Furthermore, the adjustment mechanism 9 includes an adjustment rod 14, with a handle 15 at its outer end. A first drive gear 16 is located on the side of the adjustment rod 14 near the clamping part 3, meshing with an opposing rack 12. A second drive gear 17 is located on the side of the adjustment rod 14 away from the clamping part 3, meshing with a one-way rack 13. The entire device can be easily installed and locked simply by rotating the handles 15 on both sides, without the need for any additional tools.

[0050] Furthermore, both the first drive gear 16 and the second drive gear 17 are provided with rod grooves 20 inside. An inner groove 19 is provided on the side of the first drive gear 16 and the second drive gear 17 that is close to each other. Inner gears 18 are symmetrically arranged on the outer side of the adjusting rod 14, and the inner gears 18 cooperate with the inner grooves 19. The adjusting rod 14 is inserted into the rod groove 20, and through the cooperation of the inner gears 18 and the inner grooves 19, the adjusting rod 14 drives the rotation of the first drive gear 16 and the second drive gear 17.

[0051] Furthermore, a drive block 21 is movably disposed in the middle of the adjusting rod 14, and push rods 22 are fixedly disposed on both sides of the drive block 21.

[0052] Furthermore, a return spring 24 is provided between the outer side of the first drive gear 16 and the second drive gear 17 and the adjusting mechanism 9. The return spring 24 is used to maintain the position of the first drive gear 16 and the second drive gear 17.

[0053] Furthermore, the frame 10 is provided with a sliding groove 25 on its side, the baffle 11 is provided with a slider 26 on its side, and a handle 27 is fixedly provided on the front side of the baffle 11. The baffle 11 can move inside the sliding groove 25 via the slider 26.

[0054] Furthermore, a monitoring mechanism 33 is provided on the outside of the protective part 4. The monitoring mechanism 33 includes a main unit 28. An audio-visual device 29 is provided on the outside of the main unit 28. An upper contact 30 is fixedly provided on the upper side inside the slide 25. A lower contact 31 is fixedly provided on the upper side of the slider 26. A wire 32 is provided between the main unit 28 and the upper contact 30 and the lower contact 31.

[0055] In another embodiment, the monitoring mechanism 33 is preferably configured such that, under normal circumstances, the baffle 11 is located in the middle of the frame 10, completely blocking the operation switch of the circuit breaker body 1. At this time, the slider 26 is located at the bottom of the slide groove 25, and the upper contact 30 and the lower contact 31 are far apart from each other, and the monitoring mechanism 33 operates normally. The main unit 28 of the monitoring mechanism 33 determines that the "protection status is normal", the main unit system is in a standby state, the audible and visual device 29 will not alarm, and personnel can observe the status of the circuit breaker through the transparent baffle 11.

[0056] When the operator receives prior authorization from the host system and opens the baffle 11 normally, after confirming safety, the operator holds the handle 23 and pulls the baffle 11 upwards. The slider 26 moves upwards along the slide groove 25, and the lower contact 31 and upper contact 30 make contact. The host unit 28 forms a complete circuit through the wire 32, upper contact 30, and lower contact 31. The host unit 28 sends a signal to the host system. Since prior authorization has been obtained, no alarm will be triggered, and operation is permitted. If the baffle is opened illegally without authorization from the host system, the host unit 28 will send a signal to the host system. The host system will immediately interpret this signal as "illegal intrusion" or "abnormal opening," issue a warning message, and simultaneously activate the audible and visual alarm 29 to alert surrounding personnel and prevent misoperation.

[0057] The entire device integrates positioning, protection, and monitoring functions, with a clever and compact structural design suitable for use inside power distribution cabinets with limited space. The mechanical transmission part has a stable structure and reliable meshing, ensuring stable clamping force and preventing loosening due to vibration or other reasons, resulting in high reliability during long-term operation.

Claims

1. A circuit breaker anti-misoperation safety protection device, comprising a circuit breaker body, the circuit breaker body being installed inside a distribution cabinet, characterized in that: include: Two clamping parts are symmetrically arranged on both sides of the circuit breaker body. Each clamping part includes a vertical clamp and a horizontal clamp. The vertical clamp has vertical jaws movably arranged at both the upper and lower ends. The horizontal clamp has horizontal jaws movably arranged at the rear side. An adjustment mechanism is provided on the outer side of each clamping part. The protective part includes a frame, the two sides of which are fixedly connected to the clamping part, and a baffle is movably provided on the front side of the frame.

2. The circuit breaker anti-misoperation safety protection device as described in claim 1, characterized in that: The baffle is made of transparent acrylic sheet.

3. The circuit breaker anti-misoperation safety protection device as described in claim 1, characterized in that: The two vertical grippers are symmetrically arranged with opposing racks at one end, and the horizontal gripper is fixedly provided with a unidirectional rack.

4. The circuit breaker anti-misoperation safety protection device as described in claim 3, characterized in that: The adjustment mechanism includes an adjustment rod with a throttle handle at its outer end. A first drive gear is provided on the side of the adjustment rod near the clamping part, and the first drive gear meshes with an opposing rack. A second drive gear is provided on the side of the adjustment rod away from the clamping part, and the second drive gear meshes with a one-way rack.

5. The circuit breaker anti-misoperation safety protection device as described in claim 4, characterized in that: Both the first and second drive gears have rod grooves inside. The first and second drive gears have embedded grooves on their sides that are close to each other. Embedded gears are symmetrically arranged on the outside of the adjusting rod. The embedded gears and embedded grooves cooperate with each other.

6. The circuit breaker anti-misoperation safety protection device as described in claim 5, characterized in that: A drive block is movably disposed in the middle of the adjusting rod, and push rods are fixedly disposed on both sides of the drive block.

7. The circuit breaker anti-misoperation safety protection device as described in claim 6, characterized in that: A return spring is provided between the outer side of the first drive gear and the second drive gear and the adjustment mechanism.

8. The circuit breaker anti-misoperation safety protection device as described in claim 1, characterized in that: The frame is provided with a sliding groove on its side, the baffle is provided with a slider on its side, and a handle is fixedly provided on the front side of the baffle.

9. A circuit breaker anti-misoperation safety protection device as described in claim 8, characterized in that: A monitoring mechanism is provided on the outside of the protective part. The monitoring mechanism includes a main unit. An audible and visual device is provided on the outside of the main unit. An upper contact is fixedly provided on the upper side inside the slide. A lower contact is fixedly provided on the upper side of the slider. Wires are provided between the main unit and the upper and lower contacts.

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