A conveniently adjustable three-position circuit breaker mechanism

Abstract

This utility model discloses a conveniently adjustable three-position circuit breaker mechanism, relating to the field of circuit breakers. It includes a support and stabilizing plate, with rotating brackets mounted on both sides of the support and stabilizing plate. Inside each rotating bracket is a rolling elastic mechanism that rotates a stabilizing tension spring. The rolling elastic mechanism includes a central stabilizing ring, which is fixedly installed inside the center of the rotating brackets. This conveniently adjustable three-position circuit breaker mechanism allows for precise switching of the circuit breaker position to the isolation position without misoperation or overoperation, and is easy to adjust.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a three-position circuit breaker mechanism that is easy to adjust. Background Technology

[0002] A three-position disconnector is an electrical device used to switch between on, off, and ground states. Based on the movement of its contacts, it can generally be classified into knife-switch type and direct-acting type. Direct-acting disconnectors, due to their inherent characteristics, are typically matched with a rotary-to-direct-acting operating mechanism. A direct-acting disconnector has a closing position and a grounding position located at both ends of the switch, and an off position located in the middle.

[0003] In existing mechanical interlocking systems, operators can still perform actions, but are unable to operate the machine because the component is locked. Therefore, this type of single-locking mechanical interlock carries the risk of component damage. Operators might mistakenly believe the inability to operate is due to jamming and apply more force, resulting in component damage, interlock failure, and an accident.

[0004] To overcome the above-mentioned defects, existing technology (Chinese Patent Publication No.: CN216450555U, Publication Date: 2022-05-06) discloses an isolation interlocking device for a circuit breaker mechanism and a three-position operating mechanism, including a circuit breaker frame and a three-position operating locking frame. The circuit breaker frame is equipped with a circuit breaker drive mechanism driven by a motor, a circuit breaker drive shaft driven by the circuit breaker drive mechanism, a closing push plate, a first adjusting part driven by the circuit breaker drive shaft, and a second adjusting part used in conjunction with the closing push plate. The three-position operating locking frame is equipped with an interlocking baffle and a toggle plate. The beneficial effect of this utility model is that when the circuit breaker mechanism is closed, the interlocking baffle blocks the closing, opening, and grounding operation holes of the isolating switch of the three-position operating mechanism, making the toggle plate inoperable. When the circuit breaker mechanism is opened, the interlocking baffle moves away from the closing, opening, and grounding operation holes of the isolating switch of the three-position operating mechanism, making the toggle plate operable.

[0005] While the above design can solve the aforementioned problems, there is a clear tactile feedback to remind the operator that the switch is in place when it is switched to the closing or grounding position. However, when the switch is switched to the isolation position, there is no clear tactile feedback to remind the operator whether the operation is in place. The operator can only judge whether the operation is in place by the indicator on the surface of the equipment and the number of rotations in the instruction manual. It is not possible to accurately switch the position to the isolation position, which can easily lead to situations where the operation is not in place or is over-operated. Utility Model Content

[0006] The purpose of this utility model is to provide a conveniently adjustable three-position circuit breaker mechanism to solve the problem mentioned in the background art: when the switch is switched to the closing or grounding position, there is obvious tactile feedback to remind the operator that the closing or grounding is in place; however, when the switch is switched to the isolation position, there is no obvious tactile feedback to remind the operator whether the operation is in place. The operator can only judge whether the operation is in place by the indicator on the surface of the equipment and the number of rotations in the instruction manual, which makes it impossible to accurately switch the position to the isolation position, and it is easy to cause the operation to be incomplete or excessive.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a conveniently adjustable three-position circuit breaker mechanism, including a support and stabilizing plate, with two rotating frames mounted on the left and right sides of the support and stabilizing plate, and a rolling elastic mechanism for rotating a stabilizing tension spring installed inside the two rotating frames. The rolling elastic mechanism includes a central stabilizing ring, which is fixedly installed inside the center of the two rotating frames. A middle stabilizing frame is mounted on the upper surface of the support and stabilizing plate, and a meshing transmission mechanism for moving a drive rotating rod is mounted on the outer surface of the middle stabilizing frame.

[0008] Furthermore, the meshing transmission mechanism includes a support and stabilizing frame, which is fixedly installed on the upper surface of the support and stabilizing plate. A self-driving bevel gear is installed on the outer surface of the support and stabilizing frame, and a middle section stabilizing frame is installed on the outer surface of the active rotating rod.

[0009] Furthermore, the inner surface of the mid-section stabilizer slides against the outer surface of the mid-section stabilizer, and the active rotating rod and the contact rotating disk rotate as a whole along the interior of the mid-section stabilizer. Moreover, the support stabilizer plate and the contact rotating disk are designed as a single unit.

[0010] Furthermore, an active rotating rod is installed inside the central stabilizing ring, and the two ends of the active rotating rod are rotatably installed inside the central stabilizing ring. A rotating knife gate is installed on the outer surface of the active rotating rod, and the left and right ends of the stabilizing tension spring are respectively fixedly installed to the corresponding two sides of the inner surface of the rotating knife gate.

[0011] Furthermore, the rotary knife gate and the stabilizing tension spring are designed as a single unit, and three sets of rotary knife gate and stabilizing tension spring are fixedly installed on the outside of the active rotary rod in equal proportions. Moreover, the inner surface of the rotary knife gate is in contact with both ends of the stabilizing tension spring to form an elastic structure.

[0012] Furthermore, the rotating frames at both ends and the central stabilizing ring are designed as a single unit, and the inner surface of the central stabilizing ring contacts the outer surfaces of both ends of the active rotating rod to form a sliding structure. Moreover, two sets of rotating frames at both ends and the central stabilizing ring are symmetrically installed about the center point of the supporting stabilizing plate.

[0013] Furthermore, an integrated bevel gear is mounted on the outer surface of the active rotating rod, and the self-driving bevel gear meshes with the integrated bevel gear. The side of the middle section stabilizer contacts the inner surface of the rotating disk to form a sliding structure, and the active rotating rod and the integrated bevel gear are designed as a single unit.

[0014] Compared with the prior art, the beneficial effects of this utility model are: when the easily adjustable three-position circuit breaker mechanism needs to perform the locking and contact operation of the equipment, the active rotating rod is directly rotated, and the rotating knife switch and the stabilizing tension spring will rotate synchronously. During the docking process, the stabilizing tension spring will use its own elastic potential energy to pull the rotating knife switch inward to complete the stable clamping. This design allows the operator to accurately switch the work position to the isolation work position without the situation of insufficient operation or excessive operation, and it is easy to adjust. Furthermore, when the equipment needs to be rotated, the self-driven bevel gear is directly activated to drive the integrated bevel gear. At this time, the active rotating rod will rotate accordingly, and the two ends of the active rotating rod will maintain stable rotation inside the two end rotating frames, making the equipment driving process more efficient and easier to adjust the speed. Furthermore, the rotation of the mid-section stabilizer will be synchronized with the rotation of the active rotating rod, and the mutual contact between the mid-section stabilizer and the contact rotating disk will ensure that the rotation of the active rotating rod is more stable. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the support and stabilizing plate of this utility model; Figure 2 This is a three-dimensional structural diagram of the rotating frame at both ends of this utility model; Figure 3 This is a three-dimensional structural diagram of the active rotating rod of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the integrated bevel gear of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the rotating disc of this utility model; Figure 6 This is a three-dimensional structural diagram of the stable tension spring of this utility model.

[0016] In the diagram: 1. Supporting stabilizing plate; 2. Rotating frames at both ends; 3. Supporting stabilizing frame; 4. Self-driving bevel gear; 5. Central stabilizing ring; 6. Active rotating rod; 7. Integrated bevel gear; 8. Rotating knife gate; 9. Stabilizing tension spring; 10. Middle section stabilizing frame; 11. Adhering rotating disk. Detailed Implementation

[0017] 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.

[0018] Example 1: Please refer to Figure 5 and Figure 6 The present invention provides the following technical solution: a conveniently adjustable three-position circuit breaker mechanism, including a support and stabilizing plate 1, with two end rotating frames 2 installed on the left and right sides of the support and stabilizing plate 1, and a rolling elastic mechanism for rotating a stabilizing tension spring 9 installed inside the two end rotating frames 2. The rolling elastic mechanism includes a central stabilizing ring 5, which is fixedly installed inside the center position of the two end rotating frames 2. A middle section stabilizing frame 10 is installed on the upper surface of the support and stabilizing plate 1, and a meshing transmission mechanism for moving the active rotating rod 6 is installed on the outer surface of the middle section stabilizing frame 10.

[0019] like Figure 1 , Figure 5 and Figure 6 The technical solution shown addresses the problem that operators can only judge whether the operation is in place by the number of rotations indicated on the equipment surface and in the instruction manual, making it difficult to accurately switch the workstation to the isolated workstation and easily leading to incomplete or excessive operation. The solution discloses the following: An active rotating rod 6 is installed inside the central stabilizing ring 5, with both ends of the active rotating rod 6 rotatably installed inside the central stabilizing ring 5. A rotating knife gate 8 is installed on the outer surface of the active rotating rod 6, and the left and right ends of the stabilizing tension spring 9 are respectively fixed to the corresponding sides of the inner surface of the rotating knife gate 8. The rotating knife gate 8 and the stabilizing tension spring 9 are integrated into one piece, and three sets of rotating knife gate 8 and stabilizing tension spring 9 are equally fixed to the outside of the active rotating rod 6. Furthermore, the two sides of the inner surface of the rotating knife gate 8 contact the two ends of the stabilizing tension spring 9 to form an elastic structure. The two rotating frames 2 at both ends are integrated into the central stabilizing ring 5, and the inner surface of the central stabilizing ring 5 contacts the two outer surfaces of the active rotating rod 6 to form a sliding structure. Two sets of rotating frames 2 at both ends are symmetrically installed around the center point of the supporting stabilizing plate 1.

[0020] When the equipment needs to be moved and clamped stably, as the active rotating rod 6 is driven to rotate as a whole, the three sets of rotating knife gates 8 fixedly installed on the outer surface will rotate synchronously. At the same time, the stabilizing tension springs 9 fixedly installed inside the rotating knife gates 8 will also be driven to rotate stably. As the rotating knife gates 8 complete the biting and contacting work, the stabilizing tension springs 9 will be driven to extend laterally due to the contact on both sides inside. At this time, the stabilizing tension springs 9 will stretch the two sides of the rotating knife gates 8 inward and stabilize them due to their own elastic potential energy, making the connection of the rotating knife gates 8 tighter. During the movement of the active rotating rod 6, the two ends of the active rotating rod 6 will rotate along the two end rotating frames 2 fixed at the corresponding positions on the left and right sides of the support stabilizing plate 1. The central stabilizing ring 5 fixedly installed inside the two end rotating frames 2 will limit and stabilize the rotation of the active rotating rod 6, which is nested and rolled inside, making the equipment more efficient. At the same time, the cooperation of the three sets of rotating knife gates 8 and the stabilizing tension springs 9 will improve the processing efficiency of the equipment simultaneously.

[0021] Example 2: Figure 2 , Figure 3 and Figure 4 The technical solution shown discloses the following to address the problem of inconvenient operation in adjusting the overall rotation efficiency of the equipment: The meshing transmission mechanism includes a support and stabilizing frame 3, which is fixedly installed on the upper surface of the support and stabilizing plate 1. A self-driving bevel gear 4 is installed on the outer surface of the support and stabilizing frame 3, and a middle section stabilizing frame 10 is installed on the outer surface of the active rotating rod 6. The inner surface of the middle section stabilizing frame 10 slides against the outer surface of the middle section stabilizing frame 10. The active rotating rod 6 and the contact rotating disk 11 rotate as a whole along the interior of the middle section stabilizing frame 10. The support and stabilizing plate 1 and the contact rotating disk 11 are integrated. An integrated bevel gear 7 is installed on the outer surface of the active rotating rod 6, and the self-driving bevel gear 4 meshes with the integrated bevel gear 7. The side of the middle section stabilizing frame 10 contacts the inner surface of the contact rotating disk 11 to form a sliding structure. The active rotating rod 6 and the integrated bevel gear 7 are integrated.

[0022] When the active rotating rod 6 needs to be driven as a whole to complete the rotation, the self-driving bevel gear 4 nested and fixed inside the support and stabilizing frame 3 is started to rotate. Since the support and stabilizing frame 3 is fixedly installed on the upper surface of the support and stabilizing plate 1, the self-driving bevel gear 4 will rotate stably. During the rotation of the self-driving bevel gear 4, it will mesh with the integrated bevel gear 7 that is in contact with the outer surface and drive it. Since the integrated bevel gear 7 is fixedly installed on the outer surface of the active rotating rod 6, the active rotating rod 6 will rotate synchronously and stably with the rotation of the integrated bevel gear 7. The rotation of the active rotating rod 6 will be limited to the rotation inside the middle section stabilizing frame 10 fixedly installed on the upper surface of the support and stabilizing plate 1. At the same time, when the active rotating rod 6 is rotating, the contact rotating disk 11 fixedly installed on the outer surface will rotate synchronously. Since the outer side of the middle section stabilizing frame 10 is in contact with the side of the contact rotating disk 11, the stability of the rotation process of the active rotating rod 6 will be improved.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-position circuit breaker mechanism with convenient adjustment, comprising a support stabilizing plate (1), two end rotating frames (2) are installed on the left and right sides of the support stabilizing plate (1), characterized in that: The rotating frame (2) at both ends is equipped with a rolling elastic mechanism that rotates the stabilizing tension spring (9); The rolling elastic mechanism includes a central stabilizing ring (5), which is fixedly installed inside the center of the rotating frames (2) at both ends. A middle section stabilizing frame (10) is installed on the upper surface of the supporting stabilizing plate (1), and a meshing transmission mechanism for moving the active rotating rod (6) is installed on the outer surface of the middle section stabilizing frame (10).

2. A conveniently adjustable three position circuit breaker mechanism as claimed in claim 1 wherein: The meshing transmission mechanism includes a support and stabilizing frame (3), which is fixedly installed on the upper surface of the support and stabilizing plate (1). A self-driving bevel gear (4) is installed on the outer surface of the support and stabilizing frame (3), and a middle section stabilizing frame (10) is installed on the outer surface of the active rotating rod (6).

3. A conveniently adjustable three position circuit breaker mechanism as claimed in claim 2 wherein: The inner surface of the middle section stabilizer (10) slides against the outer surface of the middle section stabilizer (10), and the active rotating rod (6) and the contact rotating disk (11) rotate together along the interior of the middle section stabilizer (10). Moreover, the support stabilizer plate (1) and the contact rotating disk (11) are designed as a single unit.

4. The conveniently adjustable three-position circuit breaker mechanism according to claim 1, characterized in that: An active rotating rod (6) is installed inside the central stabilizing ring (5), and the two ends of the active rotating rod (6) are rotatably installed inside the central stabilizing ring (5). A rotating knife gate (8) is installed on the outer surface of the active rotating rod (6), and the left and right ends of the stabilizing tension spring (9) are respectively fixedly installed on the corresponding sides of the inner surface of the rotating knife gate (8).

5. A conveniently adjustable three position circuit breaker mechanism as claimed in claim 4 wherein: The rotary knife gate (8) and the stabilizing tension spring (9) are designed as a single unit. The rotary knife gate (8) and the stabilizing tension spring (9) are fixedly installed in three sets at equal intervals on the outside of the active rotating rod (6). The inner surfaces of the rotary knife gate (8) are in contact with the two ends of the stabilizing tension spring (9) to form an elastic structure.

6. A conveniently adjustable three position circuit breaker mechanism as claimed in claim 5 wherein: The two rotating frames (2) and the central stabilizing ring (5) are designed as a single unit. The inner surface of the central stabilizing ring (5) contacts the outer surfaces of the two ends of the active rotating rod (6) to form a sliding structure. Moreover, two sets of rotating frames (2) and central stabilizing ring (5) are symmetrically installed about the center point of the support stabilizing plate (1).

7. A three position circuit breaker mechanism for easy adjustment as claimed in claim 3 wherein: The outer surface of the active rotating rod (6) is equipped with an integrated bevel gear (7), and the self-driving bevel gear (4) meshes with the integrated bevel gear (7). The side of the middle section stabilizer (10) contacts the inner surface of the mating rotating disk (11) to form a sliding structure, and the active rotating rod (6) and the integrated bevel gear (7) are designed as a single unit.

Images