Electric leakage tripping indicating mechanism

Abstract

The utility model relates to a leakage tripping indicating mechanism, which comprises a partition plate arranged in a shell; the electric leakage indication button is provided with a first position and a second position, the first position extends out of the shell from the opening, the second position is arranged in the shell, and a positioning notch is formed in one side of the electric leakage indication button; a torsion spring; the tripping push rod is rotatably arranged in the shell, one end of the tripping push rod is in linkage with the tripper, the other end of the tripping push rod extends upwards to form a limiting part, the limiting part of the tripping push rod is clamped into the positioning notch when the electric leakage indication button is located at the second position, and the limiting part of the tripping push rod is clamped into the positioning notch when the electric leakage indication button is located at the first position. And the rotation of the tripping push rod is limited by the electric leakage indication button. The electric leakage indication button is slidably arranged in the installation space formed on the partition plate, and the torsion spring at the bottom is used as driving force, so that the whole electric leakage indication mechanism is simplified, the installation difficulty is reduced, and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field, concretely relates to a leakage tripping indicating mechanism. BACKGROUND

[0002] The leakage protection device of the circuit breaker is a device for detecting the presence of leakage in the circuit and taking appropriate measures. In the circuit, when the current flows through the ground or other unintended path, leakage occurs.

[0003] And the leakage protection device detects the leakage condition by monitoring the imbalance of the current to prevent safety risks caused by leakage, such as electric shock or fire.

[0004] And the circuit breaker with leakage protection device, its surface will be provided with leakage indicating part, for indicating the current leakage state, and the conventional leakage indicating part only plays an indicating role, cannot limit the closing operation, so the indicating button is pushed out, the indicating button is used to realize leakage indication when leakage detection, and when the indicating button is popped up, the internal operating mechanism is limited, and the closing action is limited, but the structure of the existing indicating button is complex, not suitable for small circuit breaker, so as to cause low assembly efficiency and high production cost. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a leakage tripping indicating mechanism.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A leakage tripping indicating mechanism, comprising:

[0008] A partition plate placed in the housing, the partition plate and the inner wall of the housing form an installation space, the upper end of the housing is provided with an opening, the opening is communicated with the installation space;

[0009] A leakage indicating button is slidably arranged in the installation space, and the leakage indicating button has a first position extending out of the housing from the opening and a second position placed in the housing, and one side of the leakage indicating button is provided with a positioning notch;

[0010] A torsional spring is placed at the lower end of the leakage indicating button and provides a driving force for the leakage indicating button to move from the second position to the first position;

[0011] A trip push rod is rotatably arranged in the shell, and one end thereof is arranged in linkage with the tripper, and the other end thereof extends upward to form a limiting portion, and when the leakage indication button is in the second position, the limiting portion is clamped into the positioning recess, and when the leakage indication button is in the first position, the trip push rod is limited in rotation by the leakage indication button.

[0012] The partition plate is provided with a plurality of guide walls arranged in parallel, and mounting spaces are formed between the guide walls.

[0013] The leakage indication button is slidably arranged between the guide walls.

[0014] One of the guide walls is provided with a limiting wall arranged vertically thereto.

[0015] The leakage indication button is slidably arranged between the guide walls.

[0016] The partition plate is provided with a plurality of guide walls arranged in parallel, and mounting spaces are formed between the guide walls.

[0017] The limiting portion comprises a vertical portion parallel to the moving direction of the leakage indication button, and the vertical portion extends downwardly and in an inclined manner at the lower end and is connected with the rotating portion of the trip push rod.

[0018] The lower edge of the positioning recess is provided with a circular arc transition surface.

[0019] The utility model discloses the mounting space formed on the partition plate, and the leakage indication button is slidably arranged in the mounting space, and the torsional spring at the bottom is used as the driving force, the whole leakage indication mechanism is simplified, the installation difficulty is reduced, the assembly efficiency is improved, and when the leakage is disconnected, the limiting portion is arranged on the trip push rod, is taken out from the positioning recess, realizes the leakage indication, and the trip push rod taken out is limited in rotation by the leakage indication button, and the closing operation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model.

[0021] Figure 2 It is the internal structure schematic diagram of the utility model.

[0022] Figure 3 It is Figure 2 It is the enlarged schematic diagram of A in the middle.

[0023] Figure 4 It is the structural schematic diagram of the partition plate.

[0024] Figure 5 A structure diagram of a leakage test button. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] The leakage release indication mechanism is used in a circuit breaker, and when leakage release occurs, the mechanism generates an action to complete leakage indication. The mechanism relies on a partition plate arranged in a housing to form a leakage indication installation area between L and N poles, and the partition plate is used as an installation plate for a leakage indication button and a torsion spring, that is, the leakage indication button and the torsion spring are directly mounted on the partition plate, and the housing includes a middle housing and side covers arranged on both sides of the middle housing, wherein the partition plate is fixedly arranged between the middle housing and one side cover.

[0028] The partition plate 300 is supported and fixed by a support column arranged in the middle housing, an installation space 600 is formed between the partition plate 300 and an inner wall (which refers to a side cover) of the housing 100, an opening is arranged at an upper end of the housing 100, the opening is in communication with the installation space, the size of the opening is matched with the size of the leakage indication button, so that the leakage indication button can be popped up upward through the opening to complete a leakage indication action.

[0029] The leakage indication button 200 is slidably arranged in the mounting space 600, and has a first position in which the leakage indication button 200 extends out of the shell 100 through the opening and a second position in which the leakage indication button 200 is arranged in the shell 100, and one side of the leakage indication button 200 is provided with a positioning notch 210. In the embodiment, the leakage indication button is rectangular, and the upper surface of the leakage indication button is provided with a plurality of sawtooth grooves. Meanwhile, two side walls of the leakage indication button 200 adjacent to the positioning notch 210 are provided with guide grooves 220, and the partition plate 300 and the inner wall of the shell are provided with guide blocks 340 matched with the guide grooves 220. The maximum moving distance of the leakage indication button is limited by the guide blocks 340, so that the leakage indication button cannot fall out of the opening. In other embodiments, the anti-falling structure can be arranged on any side of the leakage indication button, so that the bottom size of the leakage indication button is greater than the size of the opening, and the leakage indication button cannot fall out of the opening.

[0030] The torsional spring 400 is arranged at the lower end of the leakage indication button 200 and provides a driving force for the leakage indication button 200 to move from the second position to the first position. The partition plate 300 is provided with a positioning shaft, and the torsional spring 400 is sleeved on the positioning shaft 330. The elastic arm at one end of the torsional spring 400 is in contact with the shell 100, and the elastic arm at the other end of the torsional spring 400 is in abutment with the bottom of the leakage indication button 200.

[0031] The tripping push rod 500 is rotatably arranged in the shell 100, and one end of the tripping push rod 500 is arranged in linkage with the tripping device, and the other end of the tripping push rod 500 extends upward to form a limiting portion 510. When the leakage indication button 200 is in the second position, the limiting portion 510 is clamped into the positioning notch 210, and when the leakage indication button 200 is in the first position, the tripping push rod 500 is limited from rotating by the leakage indication button 200.

[0032] The end of the tripping push rod in linkage with the tripping device is arranged in front of the action end of the tripping device. The tripping device drives the tripping push rod to rotate, thereby releasing the limiting of the leakage indication button, so that the leakage indication button pops out of the shell, leakage indication is realized, and after the leakage indication button pops out of the shell, the limiting portion is limited from rotating by the lower edge of the positioning notch, thereby the closing operation cannot be completed when the leakage indication button is not pressed, and the possibility that a dangerous accident occurs due to accidental closing when the fault is not eliminated is avoided.

[0033] The partition plate 300 is provided with a plurality of guiding walls 310 arranged in parallel, and the guiding walls 310 form an installation space 600 therebetween, the guiding walls are arranged along the moving direction of the leakage indication button, the length of the guiding walls is the length of the moving path of the leakage indication button from the first position to the second position, and meanwhile the width between the guiding walls is adapted to the width of the leakage indication button, thereby playing the role of limiting the left and right positions and preventing the leakage indication button from swinging and being unable to be popped out from the opening. Meanwhile, in other embodiments, the guiding walls can be formed on the side cover, or can be formed on the side cover and the partition plate respectively and are spliced to form a complete guiding wall.

[0034] The bottom of one of the guiding walls 310 is provided with a limiting wall 320 arranged vertically, the limiting wall extends towards the direction of the other guiding wall, thereby playing the role of supporting at the bottom, meanwhile the height of the limiting wall is smaller than the maximum height of the guiding wall, and the height of the guiding wall connected with the limiting wall extends from low to high, thereby making the limiting wall not block the abutting of the torsion spring and the leakage test button, and making the leakage test button be able to make the torsion spring store energy when moving downward.

[0035] The limiting part 510 comprises a vertical part 511 parallel to the moving direction of the leakage indication button 200, the lower end of the vertical part 511 extends downwardly and is connected with the rotating part of the tripping push rod 500, that is, the vertical part is allowed to enter the positioning notch 210 through the inclined part 512, so that the vertical part can be directly clamped into the positioning notch 210.

[0036] The lower edge of the positioning notch 210 is provided with a circular arc transition surface 230, the design of the circular arc transition surface can make the tripping push rod more easily be clamped and be released.

[0037] The embodiments should not be regarded as the limitation of the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. A leakage trip indication mechanism, characterized by: It includes: A partition (300) is placed in the shell (100), an installation space (600) is formed between the partition (300) and the inner wall of the shell (100), and an opening is provided at the upper end of the shell (100), and the opening is connected to the installation space; A leakage indication button (200) is slidably arranged in the installation space (600), and the leakage indication button (200) has a first position extending out of the housing (100) from the opening and a second position placed in the housing (100), and a positioning notch (210) is provided on one side of the leakage indication button (200); a torsion spring (400) disposed at the lower end of the leakage indication button (200) and providing a driving force for the leakage indication button (200) to move from the second position to the first position; A trip push rod (500) is rotatably arranged in the housing (100), and one end of the trip push rod is linked to the trip device, and the other end of the trip push rod extends upward to form a limiting portion (510). When the leakage indication button (200) is in the second position, the limiting portion (510) is engaged with the positioning recess (210), and when the leakage indication button (200) is in the first position, the leakage indication button (200) limits the rotation of the trip push rod (500).

2. The leakage tripping indication mechanism according to claim 1, characterized in that: A plurality of parallel guide walls (310) are provided on the partition (300), and an installation space (600) is formed between the guide walls (310).

3. The leakage tripping indication mechanism according to claim 2, characterized in that: The leakage indication button (200) is slidably arranged between the guide walls (310).

4. The leakage tripping indication mechanism according to claim 3, characterized in that: A limiting wall (320) is provided at the bottom of one of the guide walls (310) and is arranged perpendicular thereto.

5. The leakage tripping indication mechanism according to any one of claims 1 to 4, characterized in that: Guide grooves (220) are provided on two side walls of the leakage indication button (200) adjacent to the positioning notch (210), and guide blocks (340) adapted to the guide grooves (220) are provided on the partition (300) and the inner wall of the housing.

6. The leakage tripping indication mechanism according to claim 1, characterized in that: A positioning shaft is provided on the partition (300), and the torsion spring (400) is sleeved on the positioning shaft (330), with the elastic arm at one end of the torsion spring in contact with the housing (100) and the elastic arm at the other end of the torsion spring in contact with the bottom of the leakage indication button (200).

7. The leakage tripping indication mechanism according to claim 1, characterized in that: The limiting portion (510) comprises a vertical portion (511) parallel to the moving direction of the leakage indication button (200), and the lower end of the vertical portion (511) extends obliquely downward and is connected to the rotating portion of the trip push rod (500).

8. The leakage tripping indication mechanism according to claim 1 or 7, characterized in that: The lower edge of the positioning recess (210) is provided with an arc transition surface (230).

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