Auxiliary joint indication device

Abstract

The utility model discloses a kind of auxiliary jointing instruction device, it is characterized by: including shell, microswitch, swing lever, transmission rod and indicator board;The shell has installation chamber in;Swing lever is rotationally arranged in installation chamber, and swing lever has guide slot;The microswitch is arranged in installation chamber, and the button of microswitch is towards swing lever and located in the swing range of swing lever;The indicator board is slidably arranged at the top of shell, and is connected with the upper end of swing lever;The transmission rod is slidably arranged at the bottom of shell, and has driving rod on transmission rod, which cooperates with guide slot, when transmission rod moves, swing lever is swung back and forth by driving.The utility model has the characteristics of simple structure, convenient production and low cost.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to an auxiliary opening and 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, a closing / opening indicator is usually installed. This device often integrates one or both of the functions of an auxiliary switch and a closing / opening indicator structure to provide a signal indicating the circuit breaker's closing / opening status. This allows operators to determine the circuit breaker's operating status during line inspection, maintenance, and line closure, ensuring their safety.

[0003] In the existing technology, when the closing and opening indicator device integrates the functions of an auxiliary switch and a closing and opening indicator structure, the two structures work independently. That is, two independent transmission structures are required to trigger the micro switch in the auxiliary switch and drive the indicator plate in the closing and opening indicator structure, respectively. This makes the entire device structure more complex and occupies more space, so further improvement is needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an auxiliary merging and splitting indicator device, which has the characteristics of simple structure, convenient production and low cost.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An auxiliary merging / dismerging indicator device, characterized in that it includes a housing, a micro switch, a swing lever, a transmission lever, and an indicator plate; The outer casing has an installation chamber; The swing rod is rotatably mounted in the installation chamber, and the swing rod has a guide groove. The micro switch is installed in the mounting chamber, with the button of the micro switch facing the swing rod and located within the swing range of the swing rod; The indicator plate is slidably mounted on the top of the housing and connected to the upper end of the swing rod; The transmission rod is slidably mounted at the bottom of the housing. The transmission rod has a drive rod that cooperates with the guide groove. When the transmission rod moves, it drives the swing rod to swing back and forth.

[0006] Preferably, the outer casing includes a base shell and a cover plate. The base shell has a mounting groove with its opening facing left. The outer wall of the mounting groove has a locking block. The cover plate has elastic locking feet that cooperate with the locking block.

[0007] Preferably, the swing arm has an upper section and a lower section, wherein the upper section is tilted backward relative to the lower section.

[0008] Preferably, the lower segment corresponds to the microswitch, and the lower segment has a trigger bump on the side facing the microswitch.

[0009] Preferably, the guiding groove is located on the lower segment and has a guiding section and a buffering section. The guiding section is an arc-shaped groove structure, and the buffering section is a straight groove structure.

[0010] Preferably, the upper chute and the lower chute are respectively provided at the top and bottom of the installation chamber. The indicating board is fitted in the upper chute, and the transmission rod is fitted in the lower chute.

[0011] Preferably, an elastic reset member for providing an elastic thrust to the transmission rod is provided between the lower chute and the transmission rod.

[0012] Preferably, the indicating board has a front prompt area and a rear prompt area. The front prompt area has a green background and has a character "minute", and the rear prompt area has a red background and has a character "combine".

[0013] Preferably, the rear side of the outer shell has an outlet, and a wiring groove is provided at the position above the outlet corresponding to the outer shell.

[0014] Preferably, a connecting plate is provided on the outer side wall of the outer shell, and a connecting hole is provided on the connecting plate.

[0015] The advantages of the present utility model are as follows: through the linkage of the transmission rod and the swing rod, the microswitch can be triggered and the indicating board can be moved forward and backward at the same time, which simplifies the structure and installation space, facilitates production, improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the auxiliary closing and opening indicating device provided in this embodiment; Figure 2 is a schematic diagram of one side of the installation groove corresponding to the auxiliary closing and opening indicating device provided in this embodiment; Figure 3 is a schematic diagram of the cooperation between the transmission rod, the swing rod, the microswitch and the indicating board provided in this embodiment; Figure 4 is another schematic diagram of the auxiliary closing and opening indicating device provided in this embodiment; Figure 5 is a schematic diagram of the connecting plate on the outer shell provided in this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Combined with Figures 1 to 5 The schematic diagram of the auxiliary closing and opening indicating device of the present utility model will be further described.

[0018] An auxiliary merging and splitting indicator device is characterized by comprising a housing 1, a micro switch 2, a swing rod 3, a transmission rod 4, and an indicator plate 5.

[0019] The outer shell 1 includes a base shell 11 and a cover plate 12. The base shell 11 has a mounting groove 112 with the opening facing to the left. The cover plate 12 covers the opening of the mounting groove 112 to form a mounting chamber.

[0020] The lower end of the swing rod 3 is rotatably mounted in the mounting chamber via a column 117 formed in the mounting chamber, allowing the portion of the swing rod 3 above the column 117 to swing back and forth within the mounting chamber. The swing rod 3 has a guide groove 33.

[0021] The micro switch 2 is fixed in the mounting chamber by two connecting posts 118 formed in the mounting chamber, located on the rear side of the swing rod 3, and the button 21 of the micro switch 2 faces the swing rod 3 and is located within the swing range of the swing rod 3.

[0022] The indicator plate 5 is slidably disposed on the top of the housing 1. The lower surface of the indicator plate 5 has a connecting plate 53. The indicator plate is connected to the upper end of the swing rod 3 through the connecting plate and swings back and forth synchronously with the swing rod 3.

[0023] The transmission rod 4 is slidably disposed at the bottom of the housing 1. The transmission rod 4 has a drive rod 41 that cooperates with the guide groove 33. When the transmission rod 4 moves, the drive rod 41 cooperates with the guide groove 33 to drive the swing rod 3 to swing back and forth, so that the micro switch 2 performs electrical signal conversion and drives the indicator plate 5 to move back and forth.

[0024] Specifically, the outer wall of the mounting groove 112 has multiple triangular locking blocks 111, and the cover plate 12 has elastic locking feet 121 that cooperate with the locking blocks 111. Each elastic locking foot 121 has a locking slot 122. During the process of the cover plate 12 closing onto the mounting groove 112, the elastic locking feet 121 deform under the guidance of the locking blocks 111 until the locking slot 122 completely aligns with the locking block 111. The elastic locking feet 121 then reset and lock onto the locking block 111 for fixation. When it is necessary to remove the cover plate 12, a tool or fingers can be used to pull the elastic locking feet 121 outwards, causing the locking slot 122 to disengage from the locking block 111, thus allowing the cover plate 12 to be removed. This design features convenient disassembly and assembly.

[0025] The swing rod 3 has an upper section 31 and a lower section 32. The upper section 31 is bent backward and inclined relative to the lower section 32, which can reduce the size of the installation chamber in the front-back direction.

[0026] The lower segment 32 corresponds to the microswitch 2. The lower segment 32 has a triggering bump 321 on the side facing the microswitch 2. The triggering bump 321 contacts the spring piece 22 on the microswitch 2, which can reduce the contact area between the swing rod 3 and the spring piece 22. When the swing rod 3 swings backward, the triggering bump 321 presses the spring piece 22, and the spring piece 22 triggers the button 21 to achieve the conversion of electrical signals.

[0027] The guiding groove 33 is located on the lower segment 32 and has a guiding section 332 and a buffering section 331. The guiding section 332 is located below the buffering section 331. The guiding section 332 is an arc-shaped groove structure, and the buffering section 331 is a straight groove structure. When the swing rod 3 is in the initial state, that is, in the forward swing position, the driving rod is at the lowest end of the guiding section 332. When the transmission rod 4 gradually moves forward and upward, the driving rod abuts against the inner top wall of the guiding section 332, driving the swing rod 3 to swing backward gradually until the microswitch 2 is triggered. At the same time, the indicating plate 5 moves backward completely. Subsequently, the driving rod slides into the buffering section 331. At this time, the buffering section 331 is parallel to the lower sliding groove 115. In this case, even if the transmission rod 4 continues to move forward and upward, it will not drive the swing rod 3 to swing backward continuously, playing a buffering and protecting role.

[0028] When the driving rod is at the lowest end of the guiding groove 33, the front side wall of the swing rod 3 abuts against the inner front wall 119 of the installation chamber and is limited. When the swing rod 3 triggers the microswitch 2, the rear side wall of the swing rod 3 abuts against the inner rear wall 120 of the installation chamber and is limited.

[0029] The installation chamber has an upper sliding groove 116 extending forward and backward and a lower sliding groove 115 extending obliquely at the top and bottom respectively. The indicating plate 5 is fitted in the upper sliding groove 116, and the transmission rod 4 is fitted in the lower sliding groove 115, enabling the indicating plate 5 and the transmission rod 4 to move stably.

[0030] An elastic resetting member 6 for providing an elastic thrust to the transmission rod 4 is provided between the lower sliding groove 115 and the transmission rod 4. The elastic resetting member 6 is a spring. The upper end of the spring abuts against the inner groove wall of the lower sliding groove 115, and the lower end abuts against the transmission rod 4. Positioned by the positioning column 42, the transmission rod 4 is pushed downward without other external forces, making the driving rod located at the lowest position of the guiding section 332. Therefore, through the cooperation of the guiding groove 33 and the driving rod 41, the transmission rod 4 can also be limited, that is, the lowest position of the transmission rod 4 can be defined, avoiding the problem that the transmission rod 4 disengages from the lower sliding groove 115.

[0031] The indicating plate 5 has a front prompt area 51 and a rear prompt area 52. The front prompt area 51 has a green background and has a character "minute", and the rear prompt area 52 has a red background and has a character "combine". Through the color and the text, a double prompt effect can be achieved.

[0032] The rear side of the housing 1 has a wire outlet 114, and the housing 1 has a wiring groove 113 above the wire outlet 114, so that the wires on the micro switch 2 are neatly arranged.

[0033] A connecting plate 19 is provided on the outer side wall, i.e. the right side wall, of the outer casing 1 facing away from the mounting groove. The connecting plate has connecting holes, so that the device can be installed into a circuit breaker by bolts.

[0034] In practical use, the transmission rod 4 is driven to move by the rotating shaft in the circuit breaker that moves synchronously with the moving contact. Through the linkage between the transmission rod 4 and the swing rod 3, the micro switch 2 can be triggered and the indicator plate 5 can be moved back and forth at the same time. This simplifies the structure and installation space, facilitates production, improves production efficiency, and reduces production costs.

[0035] 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.

[0036] 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.

[0037] 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 merging / dismerging indicator device, characterized in that: It includes a housing, a microswitch, a swing rod, a transmission rod and an indicator board; There is an installation chamber in the housing; The swing rod is rotatably arranged in the installation chamber, and there is a guide groove on the swing rod; The microswitch is arranged in the installation chamber, and the button of the microswitch faces the swing rod and is within the swing range of the swing rod; The indicator board is slidably arranged on the top of the housing and is connected to the upper end of the swing rod; The transmission rod is slidably arranged at the bottom of the housing, and there is a driving rod on the transmission rod that cooperates with the guide groove. When the transmission rod moves, it drives the swing rod to swing back and forth.

2. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: The housing includes a base shell and a cover plate. There is an installation groove with a notch facing left on the base shell, and there are clamping blocks on the outer groove wall of the installation groove. There are elastic clamping feet on the cover plate that cooperate with the clamping blocks.

3. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: The swing rod has an upper section and a lower section, and the upper section is inclined backward relative to the lower section.

4. The auxiliary merging and splitting indicator device according to claim 3, characterized in that: The lower section corresponds to the microswitch, and there is a trigger bump on the side facing the microswitch.

5. The auxiliary merging / dismerging indicator device according to claim 3, characterized in that: The guide groove is located on the lower section and has a guiding section and a buffering section. The guiding section is an arc-shaped groove structure, and the buffering section is a straight groove structure.

6. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: There are upper sliding grooves and lower sliding grooves at the top and bottom of the installation chamber respectively. The indicator board is fitted in the upper sliding groove, and the transmission rod is fitted in the lower sliding groove.

7. The auxiliary merging / dismerging indicator device according to claim 6, characterized in that: An elastic reset member for providing elastic thrust to the transmission rod is arranged between the lower sliding groove and the transmission rod.

8. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: There are a front prompt area and a rear prompt area on the indicator board. The front prompt area has a green background and has a character "minute", and the rear prompt area has a red background and has a character "close".

9. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: There is a wire outlet at the rear side of the housing, and there is a wiring groove at the position above the wire outlet corresponding to the housing.

10. The auxiliary merging / dismerging indicator device according to claim 1, characterized in that: There is a connecting plate on the outer side wall of the housing, and there are connecting holes on the connecting plate.

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