Auxiliary reporting and combination / dissolution indication device

Abstract

This utility model discloses an auxiliary alarm and contact opening / closing indicator device, including a housing, a trigger-type transmission mechanism, an auxiliary micro switch, an alarm micro switch, and a contact opening / closing indicator plate. The auxiliary micro switch and the alarm micro switch are respectively disposed in the left and right chambers of the housing. The contact opening / closing indicator plate is disposed on the top of the housing. The trigger-type transmission mechanism includes an auxiliary trigger rod and an alarm trigger rod. The auxiliary trigger rod is disposed in the left chamber and has an auxiliary trigger position and an auxiliary switching position. The alarm trigger rod is disposed in the right chamber and has an alarm trigger position and an alarm switching position. The auxiliary trigger rod drives the contact opening / closing indicator plate to slide synchronously. The lower end of the auxiliary trigger rod is in contact with the lower end of the alarm trigger rod for the toggle shaft in the circuit breaker to move. The lower end of the alarm trigger rod is in the position before the lower end of the auxiliary trigger rod, so that the toggle shaft first drives the alarm trigger rod to swing, and then drives the auxiliary trigger rod to swing. This utility model clearly indicates the working status of the circuit breaker and also has the characteristics of simple structure.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to 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] In view of the shortcomings of the existing technology, this utility model provides an auxiliary reporting and separation indicator device that can clearly indicate the working status and also has the characteristics of simple structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An auxiliary alarm and contact opening / closing indicator device, characterized in that it includes a housing, a trigger-type transmission mechanism, an auxiliary micro switch, an alarm micro switch, and a contact opening / closing indicator plate; The outer casing has a left chamber and a right chamber; The auxiliary micro switch and the alarm micro switch are respectively located in the left chamber and the right chamber; The contact opening / closing indicator plate is slidably disposed on the top of the housing; The trigger-type transmission mechanism includes an auxiliary trigger rod and an alarm trigger rod. The auxiliary trigger rod is oscillating back and forth in the left chamber and has an auxiliary trigger position that contacts the auxiliary micro switch and an auxiliary switching position that is separated from the auxiliary micro switch. A first elastic element is provided in the left chamber to keep the auxiliary trigger rod in the auxiliary trigger position. The alarm trigger rod is oscillating back and forth in the right chamber and has an alarm trigger position that contacts the alarm micro switch and an alarm switching position that is separated from the alarm micro switch. A second elastic element is provided in the right chamber to keep the alarm trigger rod in the alarm trigger position. The upper end of the auxiliary trigger rod is connected to the contact opening / closing indicator plate. When the auxiliary trigger rod swings, it drives the contact opening / closing indicator plate to slide synchronously. The lower end of the auxiliary trigger rod extends to the outside of the housing with the lower end of the alarm trigger rod so that it contacts the toggle shaft in the circuit breaker. The lower end of the alarm trigger rod is located in the front position of the lower end of the auxiliary trigger rod, so that the toggle shaft in the circuit breaker first drives the alarm trigger rod to swing, and then drives the auxiliary trigger rod to swing.

[0006] Preferably, both the left and right chambers have mounting shafts, with the auxiliary trigger rod mounted on the mounting shaft in the left chamber and the alarm trigger rod mounted on the mounting shaft in the right chamber.

[0007] Preferably, both the auxiliary trigger rod and the alarm trigger rod have a bent contact portion at their lower ends.

[0008] Preferably, the contact opening / closing indicator plate is located at the top of the left chamber, and the height of the left chamber is greater than the height of the right chamber, so that the auxiliary trigger rod is extended above the mounting shaft and extends upward to connect with the contact opening / closing indicator plate.

[0009] Preferably, both the left and right chambers have arc-shaped plates located on the front and rear sides of the trigger rod, and both the auxiliary trigger rod and the alarm trigger rod have cylindrical structures with mounting holes. The cylindrical structures are assembled onto the mounting shaft through the mounting holes and are located between the two arc-shaped plates.

[0010] Preferably, the outer casing includes a housing and two cover plates. The left and right sides of the housing have auxiliary mounting slots and alarm mounting slots, respectively. The left chamber is formed by the cover plate covering the auxiliary mounting slot, and the right chamber is formed by the cover plate covering the alarm mounting slot.

[0011] Preferably, the inner wall of the cover plate has a plurality of first elastic locking feet, and the walls of the auxiliary mounting groove and the alarm mounting groove have locking slots for the first elastic locking feet to engage.

[0012] Preferably, the top wall of the auxiliary mounting groove has a notch, which forms a sliding groove when the cover plate is fitted into the auxiliary mounting groove. The lower surface of the contact opening / closing indicator plate has a connecting plate for connecting the auxiliary trigger rod. The connecting plate fits in the sliding groove and has a limiting step to prevent the connecting plate from disengaging from the sliding groove.

[0013] Preferably, the front and rear sidewalls of the housing have second elastic retaining feet.

[0014] The advantages of this utility model are: it combines the auxiliary switch, alarm switch and contact opening / closing indicator plate together, and performs graded electrical signal conversion through a trigger-type transmission mechanism. It has the characteristics of simple structure and easy production. At the same time, after the three functions are combined, especially after the addition of the contact opening / closing indicator plate, it can further facilitate operators, especially non-professional users, to clearly judge the working status of the circuit breaker. Attached Figure Description

[0015] Figure 1 This is an exploded view of the auxiliary reporting and combination / distraction indicator device provided in this embodiment; Figure 2 This is a schematic diagram of the auxiliary reporting and merging / disassembly indicator device provided in this embodiment after the cover plate has been hidden. 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 8 This is a schematic diagram of the right chamber when the circuit breaker provided in this embodiment is in the closed state. Detailed Implementation

[0016] Combination Figures 1 to 8 The auxiliary reporting and separation indicator of this utility model will be further described.

[0017] An auxiliary alarm and contact opening / closing indicator device, characterized in that it includes a housing 1, a trigger-type transmission mechanism 2, an auxiliary micro switch 3, an alarm micro switch 4, and a contact opening / closing indicator plate 5.

[0018] The outer casing 1 has a left chamber 111 and a right chamber 112. The auxiliary micro switch 3 and the alarm micro switch 4 are respectively disposed in the left chamber 111 and the right chamber 112, and are arranged symmetrically on the left and right sides, and are positioned by the positioning post 118; the auxiliary micro switch 3 is the trigger switch of the auxiliary switch, used to control the on and off of the auxiliary switch signal, and the alarm micro switch 4 is the trigger switch of the alarm switch, used to control the on and off of the alarm switch signal.

[0019] The contact opening / closing indicator plate 5 is slidably mounted on the top of the housing 1, and has a front indicator area 52 and a rear indicator area 51 on its upper surface. The front indicator area 52 is green, indicating a safe state, and has the word "open". The rear indicator area 51 is red, indicating a dangerous state, and has the word "closed".

[0020] The trigger-type transmission mechanism 2 includes an auxiliary trigger rod 21 and an alarm trigger rod 22. The auxiliary trigger rod 21 is disposed in the left chamber 111, and its upper and lower ends can swing back and forth. During the swinging process, it has an auxiliary trigger position that contacts the auxiliary micro switch 3 and an auxiliary switching position that separates from the auxiliary micro switch 3. A first elastic element 10 is provided in the left chamber 111 to hold the auxiliary trigger rod 21 in the auxiliary trigger position. The alarm trigger rod 22 is disposed in the right chamber 112, and its upper and lower ends can also swing back and forth. During the swinging process, it has an alarm trigger position that contacts the alarm micro switch 4 and an alarm switching position that separates from the alarm micro switch 4. A second elastic element 6 is provided in the right chamber 112 to hold the alarm trigger rod 22 in the alarm trigger position.

[0021] The upper end of the auxiliary trigger rod 21 is connected to the contact opening / closing indicator plate 5. When the auxiliary trigger rod 21 swings, it drives the contact opening / closing indicator plate 5 to slide back and forth synchronously, switching between the front indicator area 52 and the rear indicator area 51, thus visually indicating the opening / closing status of the moving and stationary contacts. The lower end of the auxiliary trigger rod 21 extends to the outside of the housing 1 and contacts the toggle shaft 9 in the circuit breaker. In the triggered position, the lower end of the alarm trigger rod 22 is located in the front position of the lower end of the auxiliary trigger rod 21, i.e., the front side... Figure 3 As shown, the toggle shaft 9 in the circuit breaker first drives the alarm trigger rod 22 to swing, and then drives the auxiliary trigger rod 21 to swing.

[0022] Both the left chamber 111 and the right chamber 112 have mounting shafts 117 extending to the left and right near the bottom. The mounting shafts 117 in the two chambers are coaxially arranged. The auxiliary trigger rod 21 is mounted on the mounting shaft in the left chamber 111, and the alarm trigger rod 22 is mounted on the mounting shaft in the right chamber 112, so that the toggle shaft 9 in the circuit breaker can drive the auxiliary trigger rod 21 and the alarm trigger rod 22 to swing in sequence.

[0023] Both the auxiliary trigger rod 21 and the alarm trigger rod 22 have cylindrical structures 24 with mounting holes. The cylindrical structures 24 are fitted onto the mounting shaft through the mounting holes, allowing the two ends of the auxiliary trigger rod 21 and the two ends of the alarm trigger rod 22 to swing back and forth around the mounting shaft.

[0024] The auxiliary trigger rod 21 and the alarm trigger rod 22 are divided into an upper section and a lower section by the cylindrical structure 24. The upper section is located in the left chamber 111 or the right chamber 112, and the lower section extends to the outside of the outer shell 1. The upper section of the auxiliary trigger rod 21 has a trigger protrusion 26 at the position corresponding to the trigger position of the auxiliary micro switch 3. When the upper section of the auxiliary trigger rod 21 swings backward to the auxiliary trigger position, the trigger protrusion 26 contacts the trigger position of the auxiliary micro switch 3, triggering the auxiliary micro switch 3. Conversely, when the upper section swings forward, the trigger protrusion 26 separates from the trigger position of the auxiliary micro switch 3, realizing signal switching. The upper section of the auxiliary trigger rod 21 is bent 25 above the trigger protrusion 26, allowing the auxiliary trigger rod 21 to extend upward around the housing 11 of the auxiliary micro switch 3. Since the upper end of the alarm trigger rod 22 does not need to be connected to the contact head opening / closing indicator plate 5, the upper section of the alarm trigger rod 22 is relatively short. When the upper section of the alarm trigger rod 22 swings backward to the alarm trigger position, the upper end of the alarm trigger rod 22 directly contacts the trigger position of the alarm micro switch 4. Conversely, when the alarm trigger rod 22 swings forward, it separates from the trigger position of the alarm micro switch 4.

[0025] The first elastic element 10 and the second elastic element 6 are both torsion springs. The torsion springs are fitted in the cylindrical structure 24. The two ends of the torsion springs abut against the upper section and the inner wall of the chamber, respectively, to provide elastic force for the auxiliary trigger rod 21 and the alarm trigger rod 22, so that the two trigger rods are kept in the trigger position.

[0026] Both the lower end of the auxiliary trigger lever 21 and the alarm trigger lever 22 have a bent contact part 23. The bent contact part 23 is bent backward so that it can effectively contact the toggle shaft 9 in the circuit breaker to achieve the signal switching effect.

[0027] The contact opening / closing indicator plate 5 is located at the top of the left chamber. The height of the left chamber 111 is greater than the height of the right chamber 112, which makes the upper part of the auxiliary trigger rod 21 longer and extend upward to connect with the contact opening / closing indicator plate 5. The lengthening of the upper part can increase the swing amplitude of the upper end of the upper part, so that the front prompting area 52 and the rear prompting area 51 can be effectively switched.

[0028] Both the left chamber 111 and the right chamber 112 have upper arc-shaped plates 119 located on the front and rear sides of the mounting shaft 117. The two arc-shaped plates 119 limit the cylindrical structure 24, improve the stability of the trigger rod rotation, and also restrict the two trigger rods to swing within the required range. For example, when the upper section of the auxiliary trigger rod 21 swings backward to the auxiliary trigger position, the upper section just abuts against the upper end of the arc-shaped plate and cannot continue to swing backward, thus forming a protective structure.

[0029] The outer casing 1 includes a housing 11 and two cover plates 12. The left and right sides of the housing 11 are respectively provided with auxiliary mounting slots and alarm mounting slots. The left chamber 111 is formed by the cover plate 12 covering the auxiliary mounting slot, and the right chamber 112 is formed by the cover plate 12 covering the alarm mounting slot.

[0030] The inner wall of the cover plate 12 has a plurality of first elastic locking feet 121, and the walls of the auxiliary mounting groove and the alarm mounting groove have locking slots 113 for the first elastic locking feet 121 to engage. This snap-fit ​​connection structure can facilitate the disassembly and assembly of the cover plate 12 relative to the housing 11.

[0031] The auxiliary mounting slot has a notch 117 on its top wall. When the cover plate 12 is fitted into the auxiliary mounting slot, it forms a sliding groove with the notch 117. The lower surface of the contact opening / closing indicator plate 5 has a connecting plate 53 for the upper end of the auxiliary trigger rod 21 to connect to. The connecting plate 53 slides in the sliding groove. The connecting plate 53 has a limiting step 532 and an oblong hole 531 for the upper end of the auxiliary trigger rod 21 to connect to. The limiting step 532 can abut against the inner top wall of the auxiliary mounting slot to prevent the connecting plate 53 from detaching from the sliding groove. When the cover plate 12 is removed from the auxiliary mounting slot, the contact opening / closing indicator plate 5 can also be removed at the same time, which has the characteristics of simple structure and convenient disassembly.

[0032] Both the left chamber 111 and the right chamber 112 have cable outlets 20 on their upper rear inner walls. These outlets 20 are used to lead out the wires from the auxiliary micro switch 3 and the alarm micro switch 4. A lead wire groove 115 is provided on each of the two outlets. This lead wire groove 115 is formed by an arc-shaped rod 114 molded onto the housing 11. The rear end of the arc-shaped rod 114 is molded onto the housing 11, while the front end is suspended, allowing the wires to pass through from the left or right side. It also allows the wires to be moved out from the front, improving the neatness of the wire arrangement and facilitating future inspection and maintenance.

[0033] The front and rear side walls of the housing 1 have second elastic locking feet 116, which facilitates the installation of this device into the circuit breaker.

[0034] In practical use, this device is inserted into the circuit breaker via two second elastic locking feet 116. The moving contact in the circuit breaker is linked to and rotates synchronously with the actuating shaft. Figure 3 , 4 As shown, when the circuit breaker is in the free tripping state, the toggle shaft 9 is not in contact with the auxiliary trigger rod 21 and the alarm trigger rod 22, the moving contact 7 is separated from the stationary contact 8, the auxiliary trigger rod 21 and the alarm trigger rod 22 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", while the "close" character is blocked by the baffle in the circuit breaker; like Figure 5 , 6 As shown, during the process of switching the circuit breaker from the free tripping state to the re-tripping state, the toggle shaft 9 rotates and first contacts the bent contact part at the lower end of the alarm trigger rod 22, and drives the alarm trigger rod 22 to swing synchronously, causing the upper part of the alarm trigger rod 22 to swing forward and separate from the alarm micro switch 4, causing the electrical signal of the alarm micro switch 4 to change, the auxiliary trigger rod 21 does not swing, and the contact opening / closing indicator 5 still displays "open"; like Figure 7 , 8 As shown, during the process of switching the circuit breaker from the re-tripping state to the closing state, the toggle shaft 9 continues to rotate, making contact with the bent contact part at the lower end of the auxiliary trigger rod 21, and causing the upper end of the auxiliary trigger rod 21 to swing backward, so that the auxiliary trigger rod 21 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 21 drives the contact 7 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 22 moves further away from the alarm micro switch, and the moving contact 7 closes with the stationary contact 8.

[0035] When an accident occurs in the circuit of the circuit breaker, the toggle shaft 9 rotates in the reverse direction to switch to the free tripping state.

[0036] During the above process, the auxiliary switch, the contact opening / closing indicator 5, and the alarm switch can simultaneously indicate the working status of the circuit breaker, enabling users with different levels of knowledge to clearly understand the working status of the circuit breaker and improve safety. Secondly, the toggle shaft 9 in the circuit breaker can switch the status of the auxiliary switch, the alarm switch, and the contact opening / closing indicator 5, simplifying the structure and facilitating the production of this device.

[0037] 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.

[0038] 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.

[0039] 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. An auxiliary reporting and combination / dissolution indication device, characterized in that: Includes housing, trigger-type transmission mechanism, auxiliary micro switch, alarm micro switch, and contact opening / closing indicator plate; The outer casing has a left chamber and a right chamber; The auxiliary micro switch and the alarm micro switch are respectively located in the left chamber and the right chamber; The contact opening / closing indicator plate is slidably disposed on the top of the housing; The trigger-type transmission mechanism includes an auxiliary trigger rod and an alarm trigger rod. The auxiliary trigger rod is oscillating back and forth in the left chamber and has an auxiliary trigger position that contacts the auxiliary micro switch and an auxiliary switching position that is separated from the auxiliary micro switch. A first elastic element is provided in the left chamber to keep the auxiliary trigger rod in the auxiliary trigger position. The alarm trigger rod is oscillating back and forth in the right chamber and has an alarm trigger position that contacts the alarm micro switch and an alarm switching position that is separated from the alarm micro switch. A second elastic element is provided in the right chamber to keep the alarm trigger rod in the alarm trigger position. The upper end of the auxiliary trigger rod is connected to the contact opening / closing indicator plate. When the auxiliary trigger rod swings, it drives the contact opening / closing indicator plate to slide synchronously. The lower end of the auxiliary trigger rod extends to the outside of the housing with the lower end of the alarm trigger rod so that it contacts the toggle shaft in the circuit breaker. The lower end of the alarm trigger rod is located in the front position of the lower end of the auxiliary trigger rod, so that the toggle shaft in the circuit breaker first drives the alarm trigger rod to swing, and then drives the auxiliary trigger rod to swing.

2. The auxiliary reporting and merging / discharging indication device according to claim 1, characterized in that: There are mounting shafts in both the left and right chambers. The auxiliary trigger rod is mounted on the mounting shaft in the left chamber, and the alarm trigger rod is mounted on the mounting shaft in the right chamber.

3. The auxiliary reporting and merging / discharging indication device according to claim 1, characterized in that: Both the auxiliary trigger lever and the alarm trigger lever have bent contact parts at their lower ends.

4. The auxiliary reporting and merging / discharging indication device according to claim 2, characterized in that: The contact opening / closing indicator plate is located at the top of the left chamber. The height of the left chamber is greater than that of the right chamber, so that the auxiliary trigger rod is extended above the mounting shaft and extends upward to connect with the contact opening / closing indicator plate.

5. The auxiliary reporting and merging / discharging indication device according to claim 2, characterized in that: Both the left and right chambers have arc-shaped plates located on the front and rear sides of the trigger rod. Both the auxiliary trigger rod and the alarm trigger rod have cylindrical structures with mounting holes. The cylindrical structures are assembled onto the mounting shaft through the mounting holes and are located between the two arc-shaped plates.

6. The auxiliary reporting and merging / discharging indication device according to claim 1, characterized in that: The outer casing includes a housing and two cover plates. The left and right sides of the housing have auxiliary mounting slots and alarm mounting slots, respectively. The left chamber is formed by the cover plate covering the auxiliary mounting slot, and the right chamber is formed by the cover plate covering the alarm mounting slot.

7. The auxiliary reporting and merging / discharging indication device according to claim 6, characterized in that: The inner wall of the cover plate has multiple first elastic locking feet, and the walls of the auxiliary mounting groove and the alarm mounting groove have locking slots for the first elastic locking feet to engage.

8. The auxiliary reporting and combination / dissolution indication device according to claim 6, characterized in that: in The top wall of the auxiliary mounting slot has a notch. When the cover plate is fitted into the auxiliary mounting slot, it forms a sliding groove with the notch. The lower surface of the contact opening / closing indicator plate has a connecting plate for connecting the auxiliary trigger rod. The connecting plate is fitted into the sliding groove, and there is a limiting step on the connecting plate to prevent the connecting plate from disengaging from the sliding groove.

9. The auxiliary reporting and merging / discharging indication device according to claim 1, characterized in that: The front and rear side walls of the housing have second elastic retaining feet.

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