CN210296275U

CN210296275U - Leakage tripping linkage mechanism

Info

Publication number: CN210296275U
Application number: CN201921525404.7U
Authority: CN
Inventors: 唐国昌
Original assignee: Anxin Intelligent Technology Co Ltd
Current assignee: Anxin Intelligent Technology Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-04-10
Anticipated expiration: 2029-09-11

Abstract

The utility model provides a leakage tripping linkage mechanism, which comprises an electromagnet tripper and a tripping rod linked with the electromagnet tripper; the tripping rod is arranged on the shell of the leakage protector through an installation shaft to form a structure which can rotate around the installation shaft, and is provided with a first abutting part which abuts against a stop block of the electromagnet tripper and a second abutting part which abuts against a tripping needle; the trip rod is provided with a third abutting part which abuts against the protruding part; the lug boss rotates along with the power gear to push the trip bar to realize tripping; except the electric leakage tripping device who has used the electro-magnet tripper, still set up the ductility that power gear guaranteed the mechanism, just also can realize the reliability of threading off through other modes, moreover the utility model discloses a component part is small in quantity, and simple structure is reasonable.

Description

Leakage tripping linkage mechanism

Technical Field

The utility model relates to a release technical field especially relates to an electric leakage tripping link gear.

Background

The leakage release is an electronic device installed in the line to protect the load equipment, when the abnormal phenomena such as leakage, overload or open circuit appear in the line, the leakage protector can protect the line, the load equipment and the personal safety by cutting off the power supply in time. However, the transmission of many releases only depends on a push rod to realize opening and closing, but the method cannot ensure reliable release, and some releases can also be locked after release. If the false tripping happens, the user is greatly disturbed.

Therefore, a tripping mechanism which is more practical and reasonable in structure is urgently needed in the market.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the technology, the utility model provides an electric leakage tripping linkage mechanism which is applied to an electric leakage protector and is matched with a circuit breaker with a tripping needle for use, and comprises an electromagnet tripper and a tripping rod linked with the electromagnet tripper; the tripping rod is arranged on the shell of the leakage protector through an installation shaft to form a structure which can rotate around the installation shaft, the tripping rod is provided with a first abutting part which abuts against a stop block of the electromagnet tripper and a second abutting part which abuts against a tripping needle;

the tripping device is characterized by further comprising a power gear, wherein a protruding part is formed on the end face of the power gear, and the tripping rod is provided with a third abutting part which abuts against the protruding part; the lug boss rotates along with the power gear to push the tripping rod to realize tripping.

Preferably, the electromagnet release comprises an iron core and a stop block arranged at the end of the iron core, and the first abutting part moves between the stop block and the housing of the electromagnet release.

Preferably, the first abutting portion is arc-shaped, and the outer arc surface of the first abutting portion is in sliding contact with the stop block to form a mutual abutting structure.

Preferably, the protruding portion rotates to be in sliding contact with the third abutting portion to form a mutual abutting structure, and the protruding portion is separated from the third abutting portion after the third abutting portion is pushed to drive the tripping needle to trip.

Preferably, the power gear is a circular gear, a through hole is further formed in the end face of the circular gear, and a photoelectric sensor is mounted in the through hole to sense the movement position of the circular gear.

Preferably, the power gear and the boss are integrally injection-molded

Preferably, the electric tool further comprises a worm motor, and a worm of the worm motor is in transmission with the power gear in a matching manner so as to drive the tripping rod to push the tripping needle to realize tripping.

The utility model comprises an electromagnet release and a release rod linked with the electromagnet release; the tripping rod is arranged on the shell of the leakage protector through an installation shaft to form a structure which can rotate around the installation shaft, and is provided with a first abutting part which abuts against a stop block of the electromagnet tripper and a second abutting part which abuts against a tripping needle; the trip rod is provided with a third abutting part which abuts against the protruding part; the lug boss rotates along with the power gear to push the trip bar to realize tripping; except the electric leakage tripping device who has used the electro-magnet tripper, still set up the ductility that power gear guaranteed the mechanism, just also can realize the reliability of threading off through other modes, moreover the utility model discloses a component part is small in quantity, and simple structure is reasonable.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a structural view of the trip bar of the present invention;

FIG. 3 is a schematic view of the power gear and trip bar structure of the present invention;

FIG. 4 is a schematic view of the worm motor according to the present invention;

fig. 5 is a schematic structural view of the utility model when being installed and used.

The main element symbols are as follows:

1. an electromagnet release; 11. a stopper; 12. an iron core; 2. a trip bar; 21. a first abutting portion; 22. a second abutting portion; 23. a third abutting portion; 3. a power gear; 31. a boss portion; 4. a release pin; 5. a worm motor.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

The utility model provides a leakage tripping link gear, please refer to fig. 1-3, which is applied to a leakage protector and used in cooperation with a breaker with a tripping pin, and comprises an electromagnet tripper 1 and a tripping rod 2 linked with the electromagnet tripper; the tripping rod 2 is arranged on the shell of the leakage protector through a mounting shaft to form a structure which can rotate around the mounting shaft, the tripping rod 2 is provided with a first abutting part 21 which abuts against a stop block 11 of the electromagnet release 1, and a second abutting part 22 which abuts against a tripping pin; the power gear 3 is further included, a convex part 31 is formed on the end face of the power gear 3, and the trip rod is provided with a third abutting part 23 which abuts against the convex part 31; the lug boss 31 rotates along with the power gear 3 to push the tripping rod 2 to realize tripping. The electromagnet tripper is preferably provided with a mutual inductor for monitoring residual current to realize tripping, when a tripping condition of the electromagnet tripper is triggered, an internal coil of the electromagnet tripper generates an induction magnetic field, so that the adsorption iron core is contracted into the electromagnet tripper, one end of the iron core is connected with a stop block, a first abutting part and the stop block of the tripping rod are abutted against each other, meanwhile, a second abutting part and the tripping pin are abutted against each other, when the electromagnet tripper responds to a residual current signal, the adsorption iron core exerts force on the first abutting part to drive the tripping rod to rotate around the mounting shaft, and at the moment, the second abutting part exerts thrust on the tripping pin to force the tripping pin to displace so as to trip. However, the mode of this kind of dropout can't fully ensure reliably to trip when the electro-magnet tripper breaks down, so the utility model discloses still include a power gear, be provided with a bellying on the terminal surface of gear, specifically can be a little lug, this lug can support the portion with the third of tripping bar and bump at rotatory in-process, and the third supports the portion and will force tripping bar pivoting motion with the mutual support in-process of lug to realize the dropout. Because the power gear can be meshed with an external tripping handle, preferably, a worm motor is adopted for electric control operation, the expandability of the whole tripping device is greatly improved, and a guarantee is added for stable tripping; and the external power structure can be preferably a worm motor 5, and a worm of the worm motor is in matched transmission with the power gear to drive the tripping rod to push the tripping needle to realize tripping. Because the existing tripping rod only has a part linked with the electromagnet tripper and a tripping needle, even if other power mechanisms are additionally arranged, the tripping action cannot be realized, the design is advanced and ingenious, the number of parts is small, and the design space can be fully guaranteed.

In this embodiment, referring to fig. 2 and fig. 3, the electromagnetic release 1 includes an iron core 12 and a stopper 11 disposed at an end of the iron core 12, and the first abutting portion 21 moves between the stopper and a housing of the electromagnetic release. Because the whole trip rod moves in a rotating mode, the first abutting part is forced to rotate around the shaft instead of translating, so that in order to prevent the first abutting part from being separated in the rotating process, an arc-shaped design is preferably adopted, and the outer arc surface of the arc-shaped design is in sliding contact with the stop block to form a mutual abutting structure. And the bending degree is designed to meet the requirement that the stop block pushes the trip rod to be normally tripped.

In the embodiment, the protruding portion 31 rotates to slide in contact with the third abutting portion 23 to form a mutual abutting structure, and after the third abutting portion is pushed to drive the trip pin to trip, the protruding portion is separated from the third abutting portion. The whole trip bar is composed of a first abutting part, a second abutting part and a third abutting part, and a three-fork-shaped structure is formed, so that in the rotating process of the power gear, the rotating angle of the third abutting part pushed by the protruding part is consistent with the rotating angle of the first abutting part between the stop block and the shell of the electromagnet release, the trip can be realized at the distance, and the first abutting part cannot be blocked in the moving process; it is also necessary to satisfy that the gear can continuously rotate, so the protruding portion and the third abutting portion are in sliding contact and abut against each other, and after the third abutting portion is pushed away to complete tripping, the third abutting portion will not affect the continuous rotation of the protruding portion, that is, the third abutting portion is pushed away, tripping means completion, if the tripping rod itself has a certain elasticity to disengage from abutting, but tripping is not realized, then the third abutting portion is pushed again to trip when the protruding block continues to rotate. The reliability of the entire structure is increased.

In this embodiment, please refer to fig. 4-5, the power gear is a circular gear, a through hole is further formed on an end surface of the circular gear, and a photoelectric sensor is installed in the through hole to sense a movement position of the circular gear. Because the initial position of the gear needs to be calibrated after the power device is additionally arranged, the initial position of the gear rotation is calibrated by using the photoelectric sensor; preferably, the power gear and the protruding part are designed to be integrally injection-molded, so that unnecessary rigidity of a magnetic field of the electromagnet release is prevented.

The utility model has the advantages that:

1) the traditional circuit breaker is not provided with remote switching-on and switching-off, so that the intelligent power utilization function is realized by utilizing accessories which are provided with a zero sequence transformer and a current transformer simultaneously;

2) the current transformer coil is nested in the annular hole of the zero sequence transformer coil, the design volume of the whole accessory is reduced, and the assembly convenience of the old-fashioned electronic box is realized.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A leakage tripping linkage mechanism is applied to a leakage protector and is matched with a circuit breaker with a tripping needle for use, and is characterized by comprising an electromagnet tripper and a tripping rod linked with the electromagnet tripper; the tripping rod is arranged on the shell of the leakage protector through an installation shaft to form a structure which can rotate around the installation shaft, the tripping rod is provided with a first abutting part which abuts against a stop block of the electromagnet tripper and a second abutting part which abuts against a tripping needle;

2. An electrical leakage trip linkage according to claim 1, wherein the electromagnet trip comprises an iron core and a stop arranged at an end of the iron core, the first abutment moving between the stop and the housing of the electromagnet trip.

3. A leakage tripping linkage mechanism according to claim 2, wherein said first abutting portion is arc-shaped, and the outer arc surface thereof is in sliding contact with said stopper and forms a mutual abutting structure.

4. A leakage tripping linkage mechanism according to claim 1, wherein said protrusion is rotated to slide in contact with said third abutting portion to form a mutual abutting structure, and when said third abutting portion is pushed to trip the tripping pin, said protrusion is separated from said third abutting portion.

5. An electric leakage tripping linkage mechanism according to claim 4, wherein said power gear is a circular gear, and a through hole is further formed in the end surface of said circular gear, and a photoelectric sensor is mounted in said through hole to sense the movement position of said circular gear.

6. An electrical leakage trip linkage according to claim 1, wherein the power gear is integrally injection molded with the boss.

7. The electrical leakage tripping linkage mechanism of claim 1, further comprising a worm motor, wherein a worm of the worm motor is in transmission with the power gear in a matching manner to drive the tripping rod to push the tripping pin to trip.