CN218896600U

CN218896600U - Residual current operated circuit breaker

Info

Publication number: CN218896600U
Application number: CN202320169580.1U
Authority: CN
Inventors: 罗良文; 吴善在; 张快亮
Original assignee: Rebecca Electric Group Co ltd
Current assignee: Rebecca Electric Group Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-04-21
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a residual current operated circuit breaker, which relates to the technical field of circuit breakers, and aims at the problems that the existing residual current operated circuit breaker only can slide to one side to detach a circuit breaker body, if a plurality of circuit breaker bodies are adjacently installed, the circuit breaker body is inconvenient to detach and maintain, the workload of staff is increased, and the using effect is not ideal, the residual current operated circuit breaker is provided with a scheme that the residual current operated circuit breaker comprises a mounting frame and a circuit breaker body, wherein two fixing seats are fixedly arranged on the mounting frame, and clamping grooves are formed in one sides, close to each other, of the two fixing seats; the circuit breaker is characterized in that two rotating shafts are arranged on the rear side of the circuit breaker body in a rotating mode, worm wheels and cams are fixedly sleeved on the two rotating shafts, and a worm which is horizontally arranged is connected with the rear side of the circuit breaker body in a rotating mode. The utility model has reasonable structural design, is convenient for installing and detaching the breaker body, improves the operation efficiency, reduces the workload of staff, has good use effect and is worthy of popularization and use.

Description

Residual current operated circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a residual current operated circuit breaker.

Background

The residual current operated circuit breaker is a mechanical switching device which is used for switching on, carrying and breaking current under normal working conditions, and when the residual current reaches a specified value under specified conditions, a contact is switched off, so that a fault power supply can be rapidly switched off in a very short time, the safety of personnel and electric equipment is protected, the residual current operated circuit breaker is suitable for alternating current 50Hz or 60Hz, rated voltage monopole two lines, two poles 230V, three-level/three-level four lines and four-level 400V, and rated current is applied to a line from 60A, and when the electric shock of the personnel or the leakage current of a power grid exceeds the specified value, the residual current operated circuit breaker can rapidly switch off the fault power supply in a very short time, and the safety of the personnel and the electric equipment is protected. Through retrieving, the chinese patent of authorizing the bulletin number CN217444309U discloses a residual current operated circuit breaker, and this application includes the circuit breaker body, the both sides of circuit breaker body are all seted up flutedly, the edge that the top of circuit breaker body is close to both sides all sets up a plurality of through-holes along horizontal direction equidistance, and the beneficial effect of this application is, when the circuit breaker body need dismantle when changing, the accessible slides and directly takes off the circuit breaker body for the device is convenient for dismantle, and then has improved the work efficiency of device.

However, the design still has the defect that the breaker body can only be slid to one side for disassembly, and if a plurality of breaker bodies are adjacently installed, the disassembly and maintenance are inconvenient, the workload of staff is increased, and the use effect is not ideal.

Disclosure of Invention

The utility model aims to solve the defects that the existing residual current operated circuit breaker only can slide to one side to detach the circuit breaker body, and if a plurality of circuit breaker bodies are adjacently installed, the disassembly and maintenance are inconvenient, the workload of staff is increased, and the using effect is not ideal.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the residual current operated circuit breaker comprises a mounting frame and a circuit breaker body, wherein two fixing seats are fixedly arranged on the mounting frame, and clamping grooves are formed in one sides, close to each other, of the two fixing seats;

the circuit breaker is characterized in that two rotating shafts are arranged on the rear side of the circuit breaker body in a rotating mode, worm wheels and cams are fixedly sleeved on the two rotating shafts, a worm which is horizontally arranged is connected with the rear side of the circuit breaker body in a rotating mode, and the worm is meshed with the two worm wheels.

In a preferred embodiment, the worm is fixedly sleeved with an inner ring of two bearings, the outer ring of each bearing is fixedly provided with a connecting rod, and one end of each connecting rod, which is far away from each bearing, is fixedly arranged with the breaker body.

In a preferred embodiment, the breaker body is provided with two guide grooves, and the fixing seat is slidably arranged in the corresponding guide groove.

In a preferred embodiment, anti-slip rubber is fixedly arranged on each cam, and the anti-slip rubber is contacted with the inner wall of the clamping groove.

In a preferred embodiment, the worm is fixedly provided with a hand wheel.

In a preferred embodiment, the mounting frame is provided with a plurality of rectangular holes, and a plurality of rectangular holes are arranged at equal intervals.

According to the residual current operated circuit breaker, when the circuit breaker body is required to be disassembled for maintenance, the hand wheel is rotated, the worm is driven to rotate by rotation of the hand wheel, the worm is meshed with the two worm gears to drive the two worm gears to rotate reversely, the rotation of the worm gears drives the rotating shaft to rotate, the rotation of the rotating shaft drives the cam to rotate, and when the cam is far away from the clamping groove, the positioning of the circuit breaker body is released, so that the circuit breaker body can be disassembled;

according to the residual current operated circuit breaker, when the circuit breaker body is required to be installed, the fixing seat is clamped with the guide groove, the hand wheel is rotated, the worm is driven to rotate by rotation of the hand wheel, the worm is meshed with the two worm gears to drive the two worm gears to reversely rotate, and when the cam contacts with the inner wall of the clamping groove, positioning is completed, and then the hand wheel can be stopped rotating;

the utility model has reasonable structural design, is convenient for installing and detaching the breaker body, improves the operation efficiency, reduces the workload of staff, has good use effect and is worthy of popularization and use.

Drawings

Fig. 1 is a schematic perspective view of a residual current operated circuit breaker according to the present utility model;

fig. 2 is a schematic perspective view of a residual current operated circuit breaker according to the present utility model;

fig. 3 is a schematic perspective view of a breaker body of a residual current operated circuit breaker according to the present utility model;

fig. 4 is a side view of a residual current operated circuit breaker according to the present utility model.

In the figure: 1. a mounting frame; 2. a circuit breaker body; 3. a fixing seat; 4. a clamping groove; 5. a rotating shaft; 6. a worm wheel; 7. a cam; 8. an anti-slip rubber; 9. a guide groove; 10. a worm.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, one embodiment of the present solution provides: the residual current operated circuit breaker comprises a mounting frame 1 and a circuit breaker body 2, wherein two fixing seats 3 are fixedly arranged on the mounting frame 1, and clamping grooves 4 are formed in one sides, close to each other, of the two fixing seats 3;

the rear side rotation of circuit breaker body 2 is provided with two pivots 5, and the equal fixed cover of two pivots 5 is equipped with worm wheel 6 and cam 7, and the rear side rotation of circuit breaker body 2 is connected with the worm 10 that the level set up, and worm 10 meshes with two worm wheels 6.

Referring to fig. 2, in this embodiment, a plurality of rectangular holes are formed in the mounting frame 1, and the plurality of rectangular holes are disposed at equal intervals, so as to reduce the weight of the mounting frame 1.

Referring to fig. 3, in this embodiment, an inner ring of two bearings is fixedly sleeved on the worm 10, an outer ring of the bearings is fixedly provided with a connecting rod, and one end of the connecting rod, which is far away from the bearings, is fixedly arranged with the breaker body 2, so that the rotation of the worm 10 is more stable.

Referring to fig. 3, in this embodiment, two cams 7 are fixedly provided with anti-slip rubber 8, the anti-slip rubber 8 contacts with the inner wall of the clamping groove 4, so as to improve the positioning effect of the cams 7 on the breaker body 2.

Referring to fig. 3, in this embodiment, a hand wheel is fixedly mounted on the worm 10, so as to facilitate rotation of the worm 10.

Referring to fig. 4, in this embodiment, two guide grooves 9 are formed on the breaker body 2, and the fixing base 3 is slidably disposed in the corresponding guide groove 9, so as to facilitate installation of the breaker body 2.

The working principle is that when the circuit breaker body 2 needs to be disassembled for maintenance, a hand wheel is rotated, the rotation of the hand wheel drives a worm 10 to rotate, the rotation of the worm 10 is meshed with two worm gears 6 to drive the two worm gears 6 to reversely rotate, a rotation transmission rotating shaft 5 of the worm gears 6 rotates, the rotation of the rotating shaft 5 drives a cam 7 to rotate, and when the cam 7 is far away from a clamping groove 4, the positioning of the circuit breaker body 2 is released, so that the circuit breaker body 2 can be disassembled; when the breaker body 2 is required to be installed, the fixing seat 3 is clamped with the guide groove 9, the hand wheel is rotated, the worm 10 is driven to rotate by rotation of the hand wheel, the worm 10 is meshed with the two worm gears 6 to drive the two worm gears 6 to reversely rotate, and when the cam 7 contacts with the inner wall of the clamping groove 4, positioning is completed, and then the hand wheel can be stopped rotating.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A residual current operated circuit breaker, comprising:

the circuit breaker comprises a mounting frame (1) and a circuit breaker body (2), wherein two fixing seats (3) are fixedly arranged on the mounting frame (1), and clamping grooves (4) are formed in one sides, close to each other, of the two fixing seats (3);

the circuit breaker is characterized in that two rotating shafts (5) are arranged on the rear side of the circuit breaker body (2) in a rotating mode, worm wheels (6) and cams (7) are fixedly sleeved on the two rotating shafts (5), a worm (10) which is horizontally arranged is connected with the rear side of the circuit breaker body (2) in a rotating mode, and the worm (10) is meshed with the two worm wheels (6).

2. A residual current operated circuit breaker according to claim 1, characterized in that: the worm (10) is fixedly sleeved with an inner ring of two bearings, the outer ring of each bearing is fixedly provided with a connecting rod, and one end of each connecting rod, which is far away from each bearing, is fixedly arranged with the breaker body (2).

3. A residual current operated circuit breaker according to claim 1, characterized in that: two guide grooves (9) are formed in the breaker body (2), and the fixing base (3) is arranged in the corresponding guide grooves (9) in a sliding mode.

4. A residual current operated circuit breaker according to claim 1, characterized in that: the two cams (7) are fixedly provided with anti-slip rubber (8), and the anti-slip rubber (8) is contacted with the inner wall of the clamping groove (4).

5. A residual current operated circuit breaker according to claim 1, characterized in that: and a hand wheel is fixedly arranged on the worm (10).

6. A residual current operated circuit breaker according to claim 1, characterized in that: a plurality of rectangular holes are formed in the mounting frame (1), and the rectangular holes are arranged at equal intervals.