CN216980476U

CN216980476U - Tripping indicating mechanism for circuit breaker

Info

Publication number: CN216980476U
Application number: CN202220553026.9U
Authority: CN
Inventors: 蒋彦忠; 李卫龙
Original assignee: Anhui Wglean Electric Co ltd
Current assignee: Anhui Wglean Electric Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-15
Anticipated expiration: 2032-03-15

Abstract

The utility model provides a tripping indicating mechanism for a circuit breaker, which comprises the circuit breaker and a leakage device which are arranged side by side, a single-pole handle for controlling a switch of the circuit breaker and a leakage handle for controlling the switch of the leakage device, wherein the single-pole handle is connected with the leakage device through a cable; the leakage handle is provided with a push-pull part extending along the direction of the single-pole handle, and the push-pull part and the single-pole handle are arranged in an intermittent contact manner; the push-and-pull portion is arranged on one surface, facing the T-shaped button, of the electric leakage handle, so that the problems that when the circuit breaker is tripped, the handle of the circuit breaker needs to be manually pushed, and in addition, when the circuit breaker is reset, the handle of the electric leakage device also needs to be manually pushed to reset, so that the operation is complex and misoperation is easy to occur are solved.

Description

Tripping indicating mechanism for circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a tripping indicating mechanism for a circuit breaker.

Background

The existing miniature circuit breaker generally has short circuit and overload protection functions, once short circuit or overload occurs, the circuit breaker can be tripped, but at this time, a user cannot judge whether the short circuit or the overload occurs at all (unless large short-circuit current is switched off, the shell can be obviously polluted). It makes sense for the user to know explicitly whether a short circuit or an overload has occurred. If the overload exists, part of the electric equipment on the branch can be cut off, and the switch is closed to be normally used; however, if the circuit breaker is in a short-circuit fault, a short-circuit point must be found, and the circuit breaker can be closed or replaced immediately after the fault is eliminated.

Chinese utility model patent CN203456394U discloses a dropout indicating device and circuit breaker for circuit breaker. The trip indicating device comprises: the magnetic tripping connecting rod is rotatably fixed on a shaft of a tripping actuating mechanism of the circuit breaker; a first trip indicator having a tab and having a first fault indication indicia area on a front surface thereof that is exposable through a first window opening in a housing of the circuit breaker; and a second trip indicator disposed alongside the first trip indicator, having a projection, and having a second fault indication indicia area on a front surface thereof that is exposable through a second window open in a housing of the circuit breaker. When the circuit breaker is magnetically tripped, the first fault indication mark area and the second fault indication mark area are exposed, and when the circuit breaker is thermally tripped, only the first fault indication mark area is exposed, and the second fault indication mark area is not exposed.

However, in the prior art, when the circuit breaker is tripped, the inventor finds that the handle of the circuit breaker needs to be manually pushed, and in addition, when the circuit breaker is reset, the handle of the leakage device also needs to be manually pushed to reset, so that the circuit breaker is complex to operate and is easy to cause misoperation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, provides a leakage circuit breaker driving leakage handle matched with a single-pole handle of the breaker, and solves the problems that the operation is complicated and misoperation is easy to occur because the handle of the breaker needs to be manually pushed when the breaker is tripped and the handle of a leakage device needs to be manually pushed to reset when the breaker is reset.

In order to achieve the purpose, the utility model provides the following technical scheme: a tripping indicating mechanism for a circuit breaker comprises the circuit breaker and a leakage device which are arranged side by side, and further comprises a single-pole handle for controlling a switch of the circuit breaker and a leakage handle for controlling the switch of the leakage device;

the leakage handle is provided with a push-pull part extending along the direction of the single-pole handle, and the push-pull part and the single-pole handle are arranged in an intermittent contact manner;

the push-pull part is arranged on one surface of the leakage handle facing the T-shaped button.

Preferably, the contact part of the push-pull part and the single-pole handle is not less than half of the length of the single-pole handle.

Preferably, the contact part of the push-pull part and the single-pole handle is of an arc-shaped surface structure.

Preferably, the push-pull portion and the earth leakage handle are integrally formed.

Preferably, the leakage handle finishes the limiting work in the normal working state through the limiting assembly.

Preferably, the limiting component comprises a U-shaped rod rotatably connected with a circular hole eccentrically arranged on the electric leakage handle, a limiting block arranged on the electric leakage base and a transmission part which is driven by the U-shaped rod and is in discontinuous contact with the limiting block.

Preferably, the transmission member comprises a jump buckle in transmission connection with the other end of the U-shaped rod, a contact supporting rod with the upper end hinged to the jump buckle and rotatably arranged on the leakage base, and a leakage lock catch in coaxial transmission with the contact supporting rod, and the lower end of the contact supporting rod is in intermittent contact with the limiting block.

Preferably, a step is arranged at the upper end of the leakage lock catch, and the movable end at the upper end of the contact support rod is arranged in the step in a matching and sliding manner.

Preferably, the leakage base is provided with two groups of abutting seats, and the abutting seats are respectively arranged on one side of the position where the single-pole handle is in place.

The utility model has the beneficial effects that:

(1) the electric leakage circuit breaker drives the electric leakage handle to be matched with the single-pole handle of the circuit breaker, and the power supply is timely and synchronously cut off, so that the work transmission performance is high and quick, single-phase electric shock accidents in the power utilization process are prevented, single-phase grounding faults in the operation of electrical equipment are timely cut off, and electrical fire accidents caused by electric leakage and electric shock accidents caused by electric leakage are prevented;

(2) according to the utility model, the contact part of the push-pull part and the single-pole handle is not less than half of the length of the single-pole handle, so that when the push-pull part is pushed to work synchronously, the labor is saved, the stress is uniform, the push-pull part is not easy to break, and the service life is prolonged;

(3) according to the utility model, by arranging the limiting assembly, when the leakage handle is in a normal working state, the leakage handle is in place to limit working, so that the leakage handle is not easy to rotate, and further, when the normal working state is not influenced, the normal working of the circuit breaker is avoided, and the mutual interference of the two works in the non-intersecting working state is avoided.

In conclusion, the circuit breaker has the advantages of simple and ingenious structure and the like, and is particularly suitable for the technical field of circuit breakers.

Drawings

FIG. 1 is a first general structural diagram of the present invention;

FIG. 2 is a schematic view of the push-pull portion of the present invention;

FIG. 3 is a schematic overall front view of the present invention;

fig. 4 is a schematic diagram of the circuit breaker of the present invention;

FIG. 5 is a schematic diagram of a leakage structure according to the present invention;

FIG. 6 is a schematic view of a portion of the present invention;

fig. 7 is a schematic structural view of the limiting assembly of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1, a tripping indication mechanism for a circuit breaker comprises a circuit breaker 1 and a leakage device 2 which are arranged side by side, and further comprises a single-pole handle 11 for controlling the switch of the circuit breaker 1 and a leakage handle 12 for controlling the switch of the leakage device 2;

the leakage handle 12 is provided with a push-pull part 13 extending along the direction of the single-pole handle 11, and the push-pull part 13 is arranged in intermittent contact with the single-pole handle 11;

the push-pull portion 13 is provided on a surface of the earth leakage handle 12 facing the T-shaped button 14.

In this embodiment, when an abnormal phenomenon occurs in the line, such as leakage, overload or short circuit, the leakage breaker drives the leakage handle 12 to cooperate with the single-pole handle 11 of the breaker 1, and by timely and synchronously cutting off the power supply, the working transmission performance is high and fast, so that a single-phase electric shock accident in the power utilization process is prevented, a single-phase earth fault in the operation of the electrical equipment is timely cut off, and an electrical fire accident caused by leakage and an electric shock accident caused by the leakage are prevented.

Further, as shown in fig. 3, a contact portion of the push-pull portion 13 and the single-pole handle 11 is an arc-shaped surface structure.

In this embodiment, the contact portion between the push-pull portion 13 and the single-pole handle 11 is an arc-shaped surface structure, so that the transmission is more labor-saving and consistent, and the service life of the parts is protected.

Further, as shown in fig. 3, the push-pull portion 13 is formed integrally with the earth leakage handle 12.

In this embodiment, the push-pull portion 13 and the leakage handle 12 are integrally formed, so that only the mold needs to be updated during forming, the production difficulty is reduced, and meanwhile, the split structure is easy to break during pushing, and the service life is prolonged.

Further, as shown in fig. 3, the leakage handle 12 performs a limiting operation in a normal operation state through the limiting assembly 3.

Further, as shown in fig. 4, the limiting component 3 includes a U-shaped rod 31 rotatably connected to the circular hole 120 eccentrically disposed on the leakage handle 12, a limiting block 33 mounted on the leakage base 32, and a transmission member 34 disposed in intermittent contact with the limiting block 33 under the driving of the U-shaped rod 31.

Further, as shown in fig. 5, the transmission member 34 includes a jump buckle 341 drivingly connected to the other end of the U-shaped rod 31, a contact supporting rod 342 whose upper end is hinged to the jump buckle 341 and rotatably disposed on the leakage base 32, and a leakage lock 343 coaxially driven with the contact supporting rod 342, and the lower end of the contact supporting rod 342 is disposed in intermittent contact with the limiting block 33.

In this embodiment, through setting up spacing subassembly 3, and then when being in normal operating condition to electric leakage handle 12, electric leakage handle 12 is in place and is injectd work, makes it be difficult for rotating, and then when not influencing normal operating condition, circuit breaker 1's normal work avoids two works to interfere with each other when not intersecting the work.

Further, a step 100 is disposed at an upper end of the leakage lock 343, and a movable end of an upper end of the contact support rod 342 is slidably disposed in the step 100 in a matching manner.

Further, two sets of abutting seats 321 are arranged on the leakage base 32, and the abutting seats 321 are respectively arranged on one side of the position where the single-pole handle 11 is located.

Example two

The same or corresponding components in this embodiment as those in the above embodiment are given the same reference numerals as those in the above embodiment, and only the points different from the above embodiment will be described below for the sake of convenience. This embodiment differs from the above embodiment in that:

further, as shown in fig. 2, the contact portion of the push-pull portion 13 with the single-pole handle 11 is not less than half the length of the single-pole handle 11.

In this embodiment, the contact part of the push-pull part 13 and the single-pole handle 11 is not less than half of the length of the single-pole handle 11, so that the push-pull part 13 is not easy to break, and the service life is prolonged, and the force is saved and the stress is uniform when the push-pull part 13 and the single-pole handle 11 are synchronously pushed.

The working steps are as follows:

when the normal operating condition, electric leakage handle 12 is located the one side that is close to T word button 14, but circuit breaker 1 free switch this moment, when the unusual phenomenon appears in the circuit, like electric leakage, transship or short circuit, electric leakage handle 12 of electric leakage ware 2 drives monopole handle 11 transmission through push-and-pull portion 13 synchronization, accomplishes the work of cutting off the power, when the official opening work after next maintenance, only need promote monopole handle 11, monopole handle 11 promotes electric leakage handle 12 through push-and-pull portion 13 and resets in reverse.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A tripping indication mechanism for a circuit breaker comprises the circuit breaker (1) and a leakage device (2) which are arranged side by side, and is characterized by further comprising a single-pole handle (11) for controlling the switch of the circuit breaker (1) and a leakage handle (12) for controlling the switch of the leakage device (2);

the leakage handle (12) is provided with a push-pull part (13) along the direction of the single-pole handle (11) in an extending way, and the push-pull part (13) is arranged in an intermittent contact way with the single-pole handle (11);

the push-pull part (13) is arranged on one surface of the leakage handle (12) facing the T-shaped button (14).

2. The trip indicating mechanism for a circuit breaker according to claim 1 wherein a contact portion of the push-pull portion (13) with a single-pole handle (11) is not less than a half length of the single-pole handle (11).

3. The trip indicating mechanism for the circuit breaker according to claim 1, wherein a contact portion of the push-pull portion (13) and the single-pole handle (11) has an arc-shaped surface structure.

4. Trip indicating mechanism for a circuit breaker according to claim 1, characterised in that said push-pull part (13) is provided integrally with said creepage handle (12).

5. The trip indicating mechanism for circuit breaker according to claim 1, wherein the earth leakage handle (12) performs a limit operation for a normal operation state by a limit assembly (3).

6. The trip indicating mechanism for the circuit breaker according to claim 5, wherein the limiting component (3) comprises a U-shaped rod (31) rotatably connected with the eccentric round hole (120) of the leakage handle (12), a limiting block (33) installed on the leakage base (32), and a transmission member (34) which is driven by the U-shaped rod (31) and is in intermittent contact with the limiting block (33).

7. The trip indicating mechanism for the circuit breaker according to claim 6, wherein the transmission member (34) comprises a jump button (341) drivingly connected to the other end of the U-shaped rod (31), a contact supporting rod (342) having an upper end hinged to the jump button (341) and rotatably disposed on the creepage base (32), and a creepage lock button (343) coaxially driven with the contact supporting rod (342), and a lower end of the contact supporting rod (342) is intermittently contacted with the stopper (33).

8. The trip indicating mechanism of claim 7, wherein the leakage lock (343) is provided with a step (100) at an upper end thereof, and the movable end of the trip (341) is slidably fitted in the step (100).

9. Trip indicating mechanism for circuit breaker according to claim 6, characterized in that said earth leakage base (32) is provided with two sets of abutments (321), said abutments (321) being respectively located at one side of the position where said single-pole handle (11) is located.