Circuit breaker equipment with anti-misoperation locking mechanism
By incorporating a combination of grooves, springs, and baffles on the circuit breaker handle, the circuit breaker achieves self-locking and synchronous operation, solving the problem of accidental operation and improving operational safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIALEDUO ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
The exposed operating handles of existing circuit breakers are easily touched accidentally, leading to unintended opening and closing operations, which affect power grid stability and personnel safety.
A locking mechanism to prevent misoperation was designed. By setting a combination of groove, compression spring, baffle and hand block on the operating handle, it is ensured that the operating handle can only roll in the up and down direction when squeezed by both hands at the same time, so as to achieve self-locking and stable holding and prevent misoperation.
It effectively prevents misoperation by one hand and interference from external forces, ensures the synchronization of the circuit breaker's closing and tripping actions and the accuracy of its status reset, eliminates potential dangers, and improves operational safety.
Smart Images
Figure CN224232620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, specifically to a circuit breaker device with an anti-misoperation interlocking mechanism. Background Technology
[0002] In utility model patent application CN222653888U, published on March 21, 2025, entitled "A Novel Smart Circuit Breaker," this utility model discloses a novel smart circuit breaker, belonging to the field of circuit breaker technology. Its key technical feature is a novel smart circuit breaker comprising a circuit breaker, a main control chip, a detection module, and a communication module. The main control chip, detection module, and communication module are all housed within the circuit breaker. The main control chip is connected to both the detection module and the communication module. The invention is characterized by further including a switching structure and a control module. The switch structure includes a housing, a ferromagnetic metal sheet, an electromagnet, a ferromagnetic slider, a connecting rod made of insulating material, etc. When the closing circuit receives a control signal from the main control chip, or when a button in the closing circuit is pressed, the closing circuit is activated, and the electromagnet in the closing circuit attracts the slider, completing the closing operation. The starting circuit is connected to the main control chip. When the starting circuit receives a control signal from the main control chip, or when a button in the starting circuit is pressed, the starting circuit is activated, and the electromagnet in the starting circuit attracts the slider, completing the opening operation. Advantages include:
[0003] This invention redesigns an electromagnetic closing switch for a circuit breaker. By energizing an electromagnet, the position of a metal plate is controlled, thereby achieving the purpose of closing and opening the circuit breaker. In the switching circuit, the closing circuit takes priority over the starting circuit. When both the starting and closing circuits are activated simultaneously, the closing circuit takes effect first to prevent potential dangers from occurring.
[0004] In the aforementioned patents or prior art, circuit breakers, as core devices used to protect circuits in power systems, have operational safety that is directly related to power grid stability and personnel safety. In some operational scenarios, the opening, closing, and grounding operations of circuit breakers must strictly follow a logical sequence. However, the operating handles of existing circuit breakers are usually directly exposed on the panel, making it easy for operators to accidentally touch the operating lever, leading to unintended opening or closing. Utility Model Content
[0005] The purpose of this utility model is to provide a circuit breaker device with an anti-misoperation interlocking mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit breaker device with an anti-misoperation interlocking mechanism, characterized in that it includes: a housing, an operating handle, and a hand-held block;
[0007] The outer casing is vertically oriented, with an operating handle embedded at one end. The surface of the operating handle is located inside the outer casing, and a through groove is horizontally oriented on the surface of the operating handle. Hand-held blocks are located at both ends of the groove. The hand-held blocks on both sides can slide inside the groove. The user can only control the operating handle to roll up and down by simultaneously squeezing the hand-held blocks on both sides, thus preventing accidental operation.
[0008] Furthermore, a compression spring is provided in the groove of the operating handle, and baffles are fixedly provided at both ends of the compression spring. The baffles are slidably connected to the groove, and the cross-section of the baffles and the groove are the same. The baffles on both sides are close to the two ends of the operating handle. When the user needs to close or close the circuit breaker, the hand blocks on both sides push the baffles on both sides inward to compress the compression spring.
[0009] Furthermore, recessed grooves are provided on both sides of the inner wall of the groove of the operating handle, and sliders are provided on both sides of the baffle. The sliders are located inside the grooves and are slidably connected by the grooves, so that the baffle can only slide horizontally along the grooves.
[0010] Furthermore, the operating handle is provided with limit blocks at both ends. The limit blocks are fixedly connected to the outer shell. The limit blocks allow the operating handle to roll only in the up and down direction. The operating handle is located below the limit blocks, so that the rolling of the operating handle can only be controlled by holding the block.
[0011] Furthermore, a closing slot is provided above the operating handle, and a closing slot is provided below the operating handle. The dimensions of the closing slot and the closing slot are the same as the dimensions of the hand block, and the lengths of the closing slot and the closing slot are both greater than the length of the groove on the operating handle.
[0012] Furthermore, the closing slot and the closing slot pass through both ends of the outer casing, and plugs are provided on both sides of the outer casing. One end of the plug is protruding, and the shape of the protrusion is consistent with the shape of the hand block. The plugs are respectively engaged with the two ends of the closing slot and the closing slot.
[0013] Furthermore, a push rod is provided at one end of the hand block away from the operating handle. The push rod passes through the plug, and the surface of the plug is provided with a through groove facing the operating handle, so that the plug does not affect the push rod from completing the closing and closing operation. A rubber disc is provided at the other end of the push rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the circuit breaker device with an anti-misoperation interlocking mechanism is reasonable and has the following advantages:
[0015] (1) This technical solution achieves automatic locking and stable holding of the circuit breaker's closed state through the combined action of the baffle, spring and hand block set inside the groove of the operating handle. When the user squeezes and pushes the hand block into the closing slot, the elasticity of the spring drives the hand block to slide along the groove to the end and form a rigid engagement with the inner wall of the closing slot. Self-locking can be completed without manual intervention. The precise matching of the depth of the closing slot and the stroke of the spring ensures that the hand block can only release pressure and lock when it is fully pushed into the slot, so that the locking action is strictly synchronized with the state of the circuit breaker contacts.
[0016] (2) The technical solution adopts a double-sided hand block squeezing trigger mechanism and linear path constraint design to fundamentally eliminate accidental touch caused by single-handed misoperation or external force interference. The surface of the operating handle is located inside the shell, and the user cannot directly operate the operating handle. During operation, the two hand blocks must be squeezed inward at the same time to overcome the pressure of the compression spring in order to push the handle to move in the up and down direction, forming a double physical isolation barrier to effectively prevent tool collision or foreign object intrusion to trigger operation.
[0017] (3) This technical solution ensures the instantaneousness of the circuit breaker tripping action and the accuracy of the state reset by using the hand block retention mechanism and the separate structure during tripping. At the moment of tripping, the operating handle falls directly under the drive of gravity or the unhooking mechanism, and the hand block stays in the closing slot. This gives the operator a warning and avoids the hand block affecting the operating handle during the tripping process. At the same time, it forces the hand block to be manually pressed back into the closing slot before the next closing, so as to prevent the operator from ignoring the state check and closing directly. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This utility model Figure 1 A magnified view of a portion of point A in the middle;
[0020] Figure 3 This is a front view structural diagram of the present invention;
[0021] Figure 4 This is a three-dimensional structural diagram of the hand-held block, compression spring, and baffle of this utility model;
[0022] Figure 5 This is a three-dimensional structural diagram of the baffle, compression spring, and operating handle of this utility model;
[0023] Figure 6 This is a three-dimensional structural diagram of the operating handle of this utility model;
[0024] Figure 7 This is a three-dimensional structural diagram of the plug, hand-held block, and rubber disc of this utility model.
[0025] In the diagram: 1. Outer shell; 11. Limiting block; 2. Operating handle; 21. Groove; 22. Slide groove; 3. Baffle; 31. Slider; 4. Compression spring; 5. Hand block; 51. Hand push rod; 6. Closing slot; 7. Closing slot; 8. Plug; 81. Protrusion; 9. Rubber disc. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5 The present invention provides a technical solution as follows:
[0028] Example 1:
[0029] In this embodiment, a circuit breaker device with an anti-misoperation interlocking mechanism is provided, including: a housing 1, an operating handle 2, and a hand-held block 5;
[0030] The outer casing 1 is vertically arranged, and an operating handle 2 is embedded in one end of the outer casing 1. The surface of the operating handle 2 is located inside the outer casing 1. A through groove 21 is horizontally arranged on the surface of the operating handle 2. Hand-held blocks 5 are respectively arranged at both ends of the groove 21. The hand-held blocks 5 on both sides can slide inside the groove 21. The user can only control the operating handle 2 to roll in the up and down direction by squeezing the hand-held blocks 5 on both sides at the same time, so as to prevent the user from accidentally touching it.
[0031] A compression spring 4 is provided in the groove 21 of the operating handle 2. A baffle 3 is fixedly provided at both ends of the compression spring 4. The baffle 3 is slidably connected to the groove 21. The cross-section of the baffle 3 and the groove 21 are the same. The baffles 3 on both sides are close to the two ends of the operating handle 2. When the user needs to close or close the circuit breaker, the hand blocks 5 on both sides push the baffles 3 inward to compress the compression spring 4.
[0032] The inner walls of the groove 21 of the operating handle 2 are provided with recessed grooves 22 on both sides. The baffle 3 is provided with sliders 31 on both sides. The sliders 31 are located inside the grooves 22 and are slidably connected to the grooves 22. The sliders 31 allow the baffle 3 to slide horizontally along the grooves 21.
[0033] The operating handle 2 is provided with limit blocks 11 at both ends. The limit blocks 11 are fixedly connected to the outer shell 1. The limit blocks 11 allow the operating handle 2 to roll only in the up and down direction. The operating handle 2 is located below the limit blocks 11, so that the rolling of the operating handle 2 can only be controlled by the hand block 5.
[0034] A closing slot 6 is provided above the operating handle 2, and a closing slot 7 is provided below the operating handle 2. The dimensions of the closing slot 6 and the closing slot 7 are the same as the dimensions of the hand block 5, and the lengths of the closing slot 6 and the closing slot 7 are both greater than the length of the groove 21 on the operating handle 2.
[0035] The closing slot 6 and the closing slot 7 pass through both ends of the outer casing 1 respectively. The outer casing 1 is provided with plugs 8 on both sides. One end of the plug 8 is a protrusion 81. The shape of the protrusion 81 is consistent with the shape of the hand block 5. The plugs 8 are respectively engaged with the two ends of the closing slot 6 and the closing slot 7.
[0036] A push rod 51 is provided at one end of the hand block 5 away from the operating handle 2. The push rod 51 passes through the plug 8. The surface of the plug 8 is provided with a through groove facing the operating handle 2, so that the plug 8 does not affect the push rod 51 from completing the closing and closing operation. A rubber disc 9 is provided at the other end of the push rod 51.
[0037] Working principle: When in use, the operator first connects the circuit breaker to the power system. The circuit breaker is initially in the open state. The operating handle 2 is located below the limit block 11. The user presses the rubber disc 9 with both hands, so that the two hand blocks 5 located in the lower closing groove 7 are squeezed inward at the same time. The user needs to overcome the resistance of the compression spring 4 so that the two hand blocks 5 enter the groove 21 on the surface of the operating handle 2. Then the user pushes the operating handle 2 upward in the vertical direction until the groove 21 on the surface of the operating handle 2 moves into the closing groove 6. At this time, the elastic restoring force of the compression spring 4 drives the hand blocks 5 to slide to both sides along the direction of the groove 21 until the two hand blocks 5 slide to both ends of the closing groove 6 and form a rigid engagement with the groove wall of the closing groove 6. The plug 8 is used to prevent the hand blocks 5 from moving out of the outer shell 1, thus completing the self-locking of the closing action.
[0038] Secondly, when the circuit breaker needs to be manually tripped, the user presses the rubber disc 9 with both hands at the same time to squeeze the two hand blocks 5 located in the upper closing slot 6 inward. The user overcomes the resistance of the compression spring 4, so that the hand blocks 5 enter the groove 21 on the surface of the operating handle 2. Then the user pushes the operating handle 2 down in the vertical direction until the groove 21 on the surface of the operating handle 2 moves into the closing slot 7. At this time, the elastic restoring force of the compression spring 4 drives the hand blocks 5 to slide to both sides along the direction of the groove 21 until the two hand blocks 5 on both sides slide to the two ends of the closing slot 7 and form a rigid engagement with the slot wall of the closing slot 6, thus completing the self-locking of the closing action.
[0039] Finally, when the circuit breaker trips due to a fault, the operating handle 2 falls to the initial position of the closing slot 7 under the action of the disengagement mechanism or gravity. Since the hand block 5 is engaged with the inner wall of the closing slot 6, the hand block 5 remains fixed at the moment of tripping and will not move down with the operating handle 2. The separate design avoids the interference of the hand block 5 with the opening speed. After tripping, the hand block 5 remains in the closing slot 6, and the groove 21 is located in the closing slot 7, which can intuitively display the abnormal opening status. Before the user closes the circuit breaker again after tripping, the user needs to manually open the plugs 8 on both sides of the closing slot 6 and the closing slot 7, take the hand block 5 out of the closing slot 6 and press it back from both ends of the closing slot 7, and push the operating handle 2 to complete the closing operation again.
[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A circuit breaker device with an anti-misoperation interlocking mechanism, characterized in that, include: The outer casing (1), the operating handle (2), and the hand-held block (5); The outer shell (1) is vertically arranged, and the operating handle (2) is embedded at one end of the outer shell (1). The surface of the operating handle (2) is located inside the outer shell (1). A through groove (21) is horizontally arranged on the surface of the operating handle (2). Hand blocks (5) are respectively arranged at both ends of the groove (21). The hand blocks (5) on both sides can slide inside the groove (21). The user can only control the operating handle (2) to roll in the up and down direction by simultaneously squeezing the hand blocks (5) on both sides, so as to prevent the user from accidentally touching it.
2. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 1, characterized in that, A compression spring (4) is provided in the groove (21) of the operating handle (2). A baffle (3) is fixedly provided at both ends of the compression spring (4). The baffle (3) is slidably connected to the groove (21). The cross-section of the baffle (3) is the same as that of the groove (21). The baffles (3) on both sides are close to the two ends of the operating handle (2). When the user needs to close or close the circuit breaker, the hand blocks (5) on both sides compress the compression spring (4) by pushing the baffles (3) on both sides inward.
3. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 2, characterized in that, The operating handle (2) has recessed grooves (22) on both sides of the inner wall of the groove (21). The baffle (3) has sliders (31) on both sides. The sliders (31) are located inside the grooves (22) and are slidably connected to the grooves (22). The sliders (31) allow the baffle (3) to slide horizontally only along the grooves (21).
4. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 1, characterized in that, The operating handle (2) has limit blocks (11) at both ends. The limit blocks (11) are fixedly connected to the outer shell (1). The limit blocks (11) allow the operating handle (2) to roll only in the up and down direction. The operating handle (2) is located below the limit blocks (11), so that the rolling of the operating handle (2) can only be controlled by the hand block (5).
5. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 3, characterized in that, A closing groove (6) is provided above the operating handle (2), and a closing groove (7) is provided below the operating handle (2). The dimensions of the closing groove (6) and the closing groove (7) are the same as the dimensions of the hand block (5). The lengths of the closing groove (6) and the closing groove (7) are both greater than the length of the groove (21) on the operating handle (2).
6. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 5, characterized in that, The closing slot (6) and the closing slot (7) pass through both ends of the outer shell (1). A plug (8) is provided on both sides of the outer shell (1). One end of the plug (8) is a protrusion (81). The shape of the protrusion (81) is consistent with the shape of the hand block (5). The plug (8) is engaged with both ends of the closing slot (6) and the closing slot (7).
7. A circuit breaker device with an anti-misoperation interlocking mechanism according to claim 6, characterized in that, A push rod (51) is provided at one end of the hand block (5) away from the operating handle (2). The push rod (51) passes through the plug (8). The surface of the plug (8) is provided with a through groove facing the operating handle (2), so that the plug (8) does not affect the push rod (51) from completing the closing and closing operation. A rubber disc (9) is provided at the other end of the push rod (51).