Triggered drive mechanism for auxiliary report and combined digit indicator

Abstract

The utility model discloses a kind of auxiliary report and the triggering type transmission mechanism of combination and separation indication device, including auxiliary trigger rod, alarm trigger rod, auxiliary microswitch, alarm microswitch and contact combination and separation indication board;Auxiliary trigger rod and alarm trigger rod are coaxially rotationally arranged, both have trigger position and separation position, auxiliary trigger rod has auxiliary trigger part, alarm trigger rod has alarm trigger part, alarm trigger rod lower end is located in the front side of auxiliary trigger rod lower end, so that alarm trigger rod is driven earlier than auxiliary trigger rod;Auxiliary microswitch corresponds with auxiliary trigger part, for the auxiliary trigger rod in trigger position state triggers auxiliary microswitch, alarm microswitch corresponds with alarm trigger part, for the alarm trigger rod in trigger position state triggers alarm microswitch;Contact combination and separation indication board is connected with the upper end of auxiliary trigger rod.The utility model has the characteristics of simple structure, and can clearly show the working condition of circuit breaker when being used in circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a trigger-type transmission mechanism for an auxiliary alarm and opening / closing indicator device. Background Technology

[0002] Molded case circuit breakers (MCCBs) are commonly used in low-voltage power distribution systems as terminal switches or branch switches to provide real-time protection for power lines. To better monitor the operating status of MCCBs, auxiliary switches and alarm switches are usually installed. These switches provide indicator lights to help determine the circuit breaker's operating status during line inspection, maintenance, and line closure, ensuring operator safety.

[0003] In actual use, the auxiliary indicator light on the auxiliary switch alone cannot clearly indicate the open / closed status of the circuit breaker. For example, many non-professionals do not understand what the indicator light means, which poses a safety hazard. Secondly, the current auxiliary switch and alarm switch are set up separately and work independently, which leads to a complex structure and therefore needs further improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a trigger-type transmission mechanism for an auxiliary alarm and opening / closing indicator device. It features a simple structure and, when applied to a circuit breaker, can clearly display the circuit breaker's operating status.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A trigger-type transmission mechanism for an auxiliary alarm and contact opening / closing indicator device, characterized in that it includes an auxiliary trigger rod, an alarm trigger rod, an auxiliary micro switch, an alarm micro switch, and a contact opening / closing indicator plate; The auxiliary trigger rod and the alarm trigger rod are coaxially rotatably arranged, and both have a trigger position and a separation position. The auxiliary trigger rod has an auxiliary trigger part, and the alarm trigger rod has an alarm trigger part. The lower end of the alarm trigger rod is located in front of the lower end of the auxiliary trigger rod, so that the alarm trigger rod is driven before the auxiliary trigger rod. The auxiliary micro switch corresponds to the auxiliary triggering part, and is triggered by the auxiliary triggering rod in the triggering position. The alarm micro switch corresponds to the alarm triggering part, and is triggered by the alarm triggering rod in the triggering position. The contact opening / closing indicator plate is connected to the upper end of the auxiliary trigger rod and swings back and forth with the upper end of the auxiliary trigger rod.

[0006] Preferably, both the auxiliary trigger rod and the alarm trigger rod have a cylindrical structure and upper and lower sections located on both sides of the cylindrical structure; The cylindrical structure has a connecting hole for rotatable installation; The auxiliary triggering part is located at the upper section of the auxiliary triggering rod, and the alarm triggering part is located at the upper section of the alarm triggering rod.

[0007] Preferably, a mounting groove is provided on one end face of the cylindrical structure, and an elastic element is fitted in the mounting groove to provide elastic thrust for the auxiliary trigger rod or alarm trigger rod.

[0008] Preferably, the lower ends of both the auxiliary trigger rod and the alarm trigger rod are bent to form a bent contact portion.

[0009] Preferably, the upper section of the auxiliary trigger rod is longer than the upper section of the alarm trigger rod, and the upper section of the auxiliary trigger rod has a bending avoidance part.

[0010] Preferably, the lower surface of the contact opening / closing indicator plate has a connecting plate, the connecting plate has an oblong hole extending vertically, and the upper end of the auxiliary trigger rod has a connecting rod that mates with the oblong hole.

[0011] The advantages of this utility model are as follows: When used in conjunction with a circuit breaker, the toggle shaft in the circuit breaker can drive the auxiliary trigger rod and the alarm trigger rod to swing sequentially, causing the auxiliary micro switch and the alarm micro switch to switch electrical signals sequentially. At the same time as the auxiliary micro switch switches switch electrical signals, the contact opening / closing indicator is also driven to provide text prompts. Therefore, the working status of the circuit breaker can be clearly displayed. Secondly, the auxiliary micro switch, the alarm micro switch, and the contact opening / closing indicator can be controlled simply by rotating the toggle shaft in the circuit breaker. It has the characteristics of simple structure, convenient operation, and high production efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the trigger-type transmission mechanism provided in this embodiment; Figure 2 This is a schematic diagram of the auxiliary reporting and merging / discharging indicator device provided in this embodiment; Figure 3 This is a schematic diagram of the left chamber when the circuit breaker provided in this embodiment is in the free tripping state. Figure 4 This is a schematic diagram of the right chamber when the circuit breaker provided in this embodiment is in the free tripping state. Figure 5 This is a schematic diagram of the left chamber when the circuit breaker is in the re-tripping state, as provided in this embodiment. Figure 6 This is a schematic diagram of the right chamber when the circuit breaker is in the re-tripping state, as provided in this embodiment. Figure 7 This is a schematic diagram of the left chamber when the circuit breaker is in the closed state, as provided in this embodiment. Figure 8This is a schematic diagram of the right chamber when the circuit breaker provided in this embodiment is in the closed state. Detailed Implementation

[0013] Combination Figures 1 to 8 The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device of this utility model will be further described.

[0014] A trigger-type transmission mechanism for an auxiliary alarm and contact opening / closing indicator device is characterized by comprising an auxiliary trigger rod 1, an alarm trigger rod 2, an auxiliary micro switch 3, an alarm micro switch 4, and a contact opening / closing indicator plate 5.

[0015] The auxiliary trigger rod 1 and the alarm trigger rod 2 are coaxially rotatable and both have a trigger position and a release position. The auxiliary trigger rod 1 has an auxiliary trigger part 111, and the alarm trigger rod 2 has an alarm trigger part 21. In the trigger position, the lower end of the alarm trigger rod 2 is located in front of the lower end of the auxiliary trigger rod 1. Figure 3 As shown, the alarm trigger lever 2 is activated before the auxiliary trigger lever 1. The auxiliary micro switch 3 corresponds to the auxiliary triggering part 111, and is activated by the auxiliary trigger lever 1 in the triggering position. The alarm micro switch 4 corresponds to the alarm triggering part 21, and is activated by the alarm trigger lever 2 in the triggering position. The contact opening / closing indicator plate 5 is connected to the upper end of the auxiliary trigger lever 1 and swings back and forth with the upper end of the auxiliary trigger lever 1.

[0016] This trigger-type transmission mechanism is used in the auxiliary alarm and closing / opening indicator device of a circuit breaker, and then assembled into the circuit breaker for use. Specifically, the auxiliary alarm and closing / opening indicator device has a housing 7, within which there are a left chamber 71 and a right chamber 73. An auxiliary trigger rod 1 and an alarm trigger rod 2 are mounted in the left chamber 71 and right chamber 73 respectively via a mounting shaft 72. The lower ends of the auxiliary trigger rod 1 and alarm trigger rod 2 are located outside the housing 7, for contact with the toggle shaft 10 in the circuit breaker. An auxiliary micro switch 3 is fixed in the left chamber 71, located behind the auxiliary trigger rod 1 and corresponding to the auxiliary trigger part 111. An alarm micro switch 4 is fixed in the right chamber 73, located behind the alarm trigger rod 2 and corresponding to the alarm trigger part 21. The contact closing / opening indicator plate 5 is slidably fitted in a groove on the top of the housing 7, sliding synchronously with the swing of the auxiliary trigger rod 1.

[0017] Both the auxiliary trigger rod 1 and the alarm trigger rod 2 have a cylindrical structure 12 and upper sections 11 and lower sections 13 located on both sides of the cylindrical structure 12. The cylindrical structure 12 has a connecting hole 15 for rotatable installation, through which the auxiliary trigger rod 1 and the alarm trigger rod 2 are rotatably mounted in the left chamber 71 and the right chamber 73, respectively, causing the upper sections 11 and lower sections 13 to swing back and forth around the mounting shaft 72. The auxiliary trigger part 111 is located near the middle of the upper section 11 of the auxiliary trigger rod 1, and the alarm trigger part 21 is located at the top of the upper section 11 of the alarm trigger rod 2. The lower section 13 of the alarm trigger rod 2 is inclined forward relative to the lower section 13 of the auxiliary trigger rod 1, so that the lower section 13 of the alarm trigger rod 2 is located in front of the lower section 13 of the auxiliary trigger rod 1 and first contacts the toggle shaft 10.

[0018] The inner end face of the cylindrical structure 12 has a mounting groove 16 coaxially arranged with the connecting hole 15. The upper side of the mounting groove 16 is provided with an opening 161. An elastic element 8 is installed in the mounting groove 16 to provide elastic thrust for the auxiliary trigger rod 1 or the alarm trigger rod 2. The elastic element 8 is a torsion spring, which is installed in the mounting groove 16. The two elastic legs of the torsion spring extend upward through the opening 161 and abut against the front side of the upper section 11 and the inner wall of the chamber, respectively, to provide a rearward elastic thrust for the upper section 11 of the auxiliary trigger rod 1 or the alarm trigger rod 2, so that the auxiliary trigger rod 1 and the alarm trigger rod 2 are held in the trigger position without the action of other external forces.

[0019] The lower ends of both the auxiliary trigger lever 1 and the alarm trigger lever 2 are bent to form a bent contact portion 14, which can improve the stability of contact with the toggle shaft 10.

[0020] The upper section 11 of the auxiliary trigger rod 1 is longer than the upper section 11 of the alarm trigger rod 2, which increases the swing amplitude of the upper section 11 of the auxiliary trigger rod 1 and increases the sliding stroke of the contact opening / closing indicator plate 5, so that the front indication area 52 and the rear indication area 51 can be effectively switched. The upper section 11 of the auxiliary trigger rod 1 has a bending avoidance part 112, which is used to avoid the front side of the auxiliary micro switch 3, so that the upper section 11 of the auxiliary trigger rod 1 extends upward after bypassing the front side of the auxiliary micro switch 3 and connects with the contact opening / closing indicator plate 5.

[0021] The lower surface of the contact opening / closing indicator plate 5 has a connecting plate 6, and the connecting plate 6 has an oblong hole 61 extending vertically. The upper end of the auxiliary trigger rod 1 has a connecting rod 113 that mates with the oblong hole 61. When the upper section 11 of the auxiliary trigger rod 1 swings back and forth, the connecting rod 113 can move up and down in the oblong hole to adaptively drive the contact opening / closing indicator plate 5 to move back and forth.

[0022] The upper surface of the contact opening / closing indicator plate 5 has a front indication area 52 and a rear indication area 51. The front indication area 52 has the word "open" on a green background, and the rear indication area 51 has the word "close" on a red background. Through the combination of color and text, the working status of the circuit breaker can be clearly displayed, making it easier for users to observe.

[0023] During use, such as Figure 3 , 4 As shown, when the circuit breaker is in the free tripping open state, the toggle shaft 10 is not in contact with the auxiliary trigger rod 1 and the alarm trigger rod 2. The moving contact 9 in the circuit breaker is separated from the stationary contact 8. The auxiliary trigger rod 1 and the alarm trigger rod 2 remain in the trigger position. The electrical signals of the auxiliary micro switch 3 and the alarm micro switch 4 do not change. The contact opening / closing indicator plate 5 is in the backward state, displaying "Open". At the same time, the word "Closed" is blocked by the baffle in the circuit breaker. like Figure 5 , 6 As shown, when the circuit breaker switches from the free tripping state to the re-tripping state, the toggle shaft 109 rotates and first contacts the bent contact part 14 at the lower end of the alarm trigger rod 2, and drives the alarm trigger rod 2 to swing synchronously, causing the upper section 11 of the alarm trigger rod 2 to swing forward and separate from the alarm micro switch 4, so that the electrical signal of the alarm micro switch 4 is converted, the auxiliary trigger rod 1 does not swing, and the contact opening / closing indicator 5 still displays "open"; like Figure 7 , 8 As shown, when the circuit breaker switches from the re-tripping state to the closing state, the toggle shaft 10 continues to rotate, contacting the bent contact part 14 at the lower end of the auxiliary trigger rod 1, and causing the upper end of the auxiliary trigger rod 1 to swing backward, so that the auxiliary trigger rod 1 separates from the auxiliary micro switch 3. The electrical signal of the auxiliary micro switch 3 is converted. At the same time, the auxiliary trigger rod 1 drives the contact 9 opening / closing indicator plate 5 to slide forward, so that the contact opening / closing indicator plate 5 displays "closed" and the "open" character is blocked. The alarm trigger rod 2 moves further away from the alarm micro switch 4, and the moving contact 9 closes with the stationary contact 8.

[0024] When an accident occurs in the circuit of the circuit breaker, the toggle shaft 109 rotates in the reverse direction to switch to the free tripping state.

[0025] During the above process, the toggle shaft 10 can drive the auxiliary trigger rod 1 and the alarm trigger rod 2 to swing sequentially, causing the auxiliary micro switch 3 and the alarm micro switch 4 to switch electrical signals sequentially. At the same time as the auxiliary micro switch 3 switches electrical signals, the contact opening / closing indicator 5 is also driven to provide text prompts. Therefore, the working status of the circuit breaker can be clearly displayed. Furthermore, the auxiliary micro switch 3, the alarm micro switch 4, and the contact opening / closing indicator 5 can be controlled simply by rotating the toggle shaft 10 in the circuit breaker. This method features a simple structure, convenient operation, and high production efficiency.

[0026] Unless otherwise specified, in this utility model, terms such as "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0027] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A trigger-type transmission mechanism for an auxiliary alarm and closing / opening indicator device, characterized in that: This includes an auxiliary trigger lever, an alarm trigger lever, an auxiliary micro switch, an alarm micro switch, and a contact opening / closing indicator. The auxiliary trigger rod and the alarm trigger rod are coaxially rotatably arranged, and both have a trigger position and a separation position. The auxiliary trigger rod has an auxiliary trigger part, and the alarm trigger rod has an alarm trigger part. The lower end of the alarm trigger rod is located in front of the lower end of the auxiliary trigger rod, so that the alarm trigger rod is driven before the auxiliary trigger rod. The auxiliary micro switch corresponds to the auxiliary triggering part, and is triggered by the auxiliary triggering rod in the triggering position. The alarm micro switch corresponds to the alarm triggering part, and is triggered by the alarm triggering rod in the triggering position. The contact opening / closing indicator plate is connected to the upper end of the auxiliary trigger rod and swings back and forth with the upper end of the auxiliary trigger rod.

2. The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device according to claim 1, characterized in that: Both the auxiliary trigger rod and the alarm trigger rod have a cylindrical structure and upper and lower sections located on both sides of the cylindrical structure; The cylindrical structure has a connecting hole for rotatable installation; The auxiliary triggering part is located at the upper section of the auxiliary triggering rod, and the alarm triggering part is located at the upper section of the alarm triggering rod.

3. The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device according to claim 2, characterized in that: The cylindrical structure has a mounting groove on one end face, in which an elastic element is fitted to provide elastic thrust for an auxiliary trigger rod or an alarm trigger rod.

4. The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device according to claim 1, characterized in that: The lower ends of both the auxiliary trigger lever and the alarm trigger lever are bent to form a bent contact part.

5. The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device according to claim 2, characterized in that: The upper section of the auxiliary trigger rod is longer than the upper section of the alarm trigger rod, and the upper section of the auxiliary trigger rod has a bending avoidance part.

6. The trigger-type transmission mechanism of the auxiliary reporting and closing indicator device according to claim 1, characterized in that: The lower surface of the contact opening / closing indicator plate has a connecting plate, the connecting plate has an oblong hole extending vertically, and the upper end of the auxiliary trigger rod has a connecting rod that mates with the oblong hole.

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