CN223566556U - Breaker with forced breaking structure - Google Patents

Abstract

The utility model relates to a breaker with a forced opening structure, which comprises a telescopic component, an opening component and a locking baffle. The telescopic component is arranged on the breaker frame and is a special mechanical lock for high-voltage switch cabinet equipment. The brake separating assembly comprises a supporting shaft and a brake separating lever. The support shaft is rotatably provided on the circuit breaker frame. The brake separating lever is fixedly connected with the supporting shaft. One end of the locking baffle is fixedly connected with the supporting shaft, and the other end of the locking baffle is arranged in a telescopic path of the telescopic assembly. The extending direction of the telescopic component points to the rotating direction of the supporting shaft when the breaker is opened. According to the utility model, the telescopic component stretches out to push the locking baffle, the locking baffle drives the supporting shaft to rotate, and the supporting shaft drives the brake release lever to rotate to execute brake release action. The forced opening action is completed through mechanical transmission, and even if the control circuit is opened, the forced opening can be normally executed, so that the circuit breaker is prevented from being incapable of being timely disconnected or being erroneously closed, and the reliability of the circuit breaker is improved.

Description

Breaker with forced breaking structure

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a forced breaking structure.

Background

The gas-filled cabinet (also called gas-insulated switchgear, GIS) plays a vital role in modern power systems, and is an important device for guaranteeing safe and reliable supply of power, and the safety performance of the gas-filled cabinet is very important. The circuit breaker in the cabinet of aerifing can monitor electrical equipment's running state, when the cabinet of aerifing appears transshipping, short circuit or other trouble, and the circuit breaker can cut off the circuit fast, protection equipment and personal safety. However, the circuit breaker realizes automatic control through the internal structure, and in some special cases, such as the abnormal condition of the electrical fault of the circuit breaker, the circuit breaker cannot be timely disconnected or the circuit is erroneously closed, so that serious safety accidents can be possibly caused.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of utility model

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a circuit breaker with a forced opening structure, so as to improve the reliability of the circuit breaker.

The technical scheme of the utility model is as follows:

the breaker with the forced opening structure comprises a telescopic component, an opening component, a locking baffle and a locking baffle, wherein the telescopic component is arranged on a breaker frame and comprises a supporting shaft which is rotatably arranged on the breaker frame, an opening lever which is fixedly connected with the supporting shaft, one end of the locking baffle is fixedly connected with the supporting shaft, the other end of the locking baffle is arranged in a telescopic path of the telescopic component, the extending direction of the telescopic component points to the rotating direction of the supporting shaft when the breaker is opened, the telescopic component extends to push the locking baffle, the locking baffle drives the supporting shaft to rotate, and the supporting shaft drives the opening lever to rotate to execute opening action.

The circuit breaker comprises a circuit breaker frame, a locking baffle, a telescopic assembly, an electric switch, a locking baffle and a low-voltage power supply, wherein the circuit breaker frame is further provided with the electric switch, the electric switch is arranged at one end of the locking baffle, which is far away from the telescopic assembly, and the electric switch is arranged in the moving stroke of the locking baffle and is connected with the low-voltage power supply of the circuit breaker.

The automatic switching-on device for the electric motor is characterized by further comprising a switching-on button and a switching-on lever, wherein the switching-on button comprises a first end far away from the switching-on lever and a second end contacting with the switching-on lever, and the second end of the switching-on button pushes the switching-on lever to rotate to execute switching-on action when the first end of the switching-on button is pressed down.

The locking baffle comprises a branch lock chamber and a locking section, the branch lock chamber is connected with the supporting shaft, when the telescopic component stretches out to push the locking baffle, the locking section moves to a connecting line of the first end and the second end of the closing button, and the locking section is closer to the first end of the closing button.

The further technical scheme is that the closing lever is rotatably sleeved on the supporting shaft.

The brake release lever is characterized by further comprising a fastening piece, wherein fastening holes are respectively formed in the support shaft, the locking baffle and the brake release lever, the fastening piece simultaneously stretches into the fastening holes of the support shaft and the locking baffle to be fastened and connected with the support shaft and the locking baffle, and the fastening piece simultaneously stretches into the fastening holes of the support shaft and the brake release lever to be fastened and connected with the support shaft and the brake release lever.

The locking baffle is bent and attached to the surface of the support shaft near the tail end of the support shaft.

The telescopic assembly is a mechanical lock special for high-voltage switch cabinet equipment.

The beneficial technical effects of the utility model are as follows:

(1) The circuit breaker with the forced opening structure is provided with a locking baffle and a telescopic assembly, one end of the locking baffle is fixedly connected with a supporting shaft, and the other end of the locking baffle is arranged in a telescopic path of the telescopic assembly. The telescopic component is driven to extend out, the locking baffle is pushed to move, the supporting shaft can be driven to rotate, and then the brake separating lever fixedly connected with the supporting shaft is driven to rotate. And the extending direction of the telescopic component points to the rotating direction of the supporting shaft when the breaker is opened, so that the opening lever driven by the telescopic component executes opening action to complete forced opening of the breaker. The forced brake-separating action is completed through mechanical transmission, and the forced brake-separating can be normally executed even if the control circuit is disconnected under the premise of manually driving the telescopic component. After the forced opening function is added to the circuit breaker, the opening can be forced manually under the abnormal condition of the electrical fault of the circuit breaker, so that the circuit cannot be cut off or the circuit can be closed by mistake in time by the circuit breaker, and the reliability of the circuit breaker is improved.

(2) Further, an electrical switch is also arranged, the electrical switch is connected to a low-voltage power supply of the circuit breaker, and the switch is arranged at one end of the locking baffle, which is far away from the telescopic component. When the telescopic component is driven to execute the forced opening action, the locking baffle can trigger the electric switch to disconnect the low-voltage power supply of the circuit breaker, so that the error closing of the circuit breaker due to electric faults is avoided.

(3) Further, a locking section is further arranged on the locking baffle, and when the locking baffle executes the forced opening action, the locking section blocks the first end of the closing button. At this time, an operator cannot finish closing by pressing one end of the closing button, so that the possibility of misoperation of the operator is reduced, and the reliability of the circuit breaker with the forced opening structure is improved.

Drawings

Fig. 1 shows a schematic perspective view of a circuit breaker with a forced opening structure according to the present utility model.

Fig. 2 is a schematic perspective view showing a circuit breaker with a forced opening structure after concealing a part of the circuit breaker frame.

Fig. 3 shows a rear view of the circuit breaker with the forced opening structure of the present utility model after the circuit breaker frame is partially removed.

The reference numerals in the drawings:

1. The circuit breaker comprises a telescopic component, a locking baffle, a locking section, a separating lock chamber, an electric switch, a separating brake component, a supporting shaft, a fastening hole, a separating brake lever, a circuit breaker frame, a switching brake lever and a switching brake button.

Detailed Description

For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it would be understood by those skilled in the art, and that any structural modifications, proportional changes, or dimensional adjustments made in the drawings should not be construed as limiting the utility model to the full scope of the utility model without affecting the efficiency or reach of the utility model.

In the description of the present utility model, the positional or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of 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 constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The breaker with the forced breaking structure comprises a telescopic component 1, a breaking component 4 and a locking baffle 2. The telescopic component 1 is arranged on the breaker frame 5, and the telescopic component 1 is a mechanical lock special for high-voltage switch cabinet equipment and can be a commercial 203JS type mechanical lock special for high-voltage switch cabinet equipment. The brake release assembly 4 includes a support shaft 41 and a brake release lever 42. The support shaft 41 is rotatably provided on the circuit breaker frame 5. The brake release lever 42 is fixedly connected with the support shaft 41. One end of the locking baffle 2 is fixedly connected with the supporting shaft 41, and the other end is arranged in the telescopic path of the telescopic assembly 1. Wherein, the extension direction of the telescopic component 1 points to the rotation direction of the supporting shaft 41 when the breaker is opened. The telescopic component 1 stretches out to push the locking baffle plate 2, the locking baffle plate 2 drives the supporting shaft 41 to rotate, and the supporting shaft 41 drives the brake separating lever 42 to rotate to perform brake separating action. The forced brake-separating action is completed through mechanical transmission, and the forced brake-separating action can be normally executed even if the control circuit is disconnected on the premise of manually driving the telescopic assembly 1. After the forced opening function is added to the circuit breaker, the opening can be forced manually under the abnormal condition of the electrical fault of the circuit breaker, so that the circuit cannot be cut off or the circuit can be closed by mistake in time by the circuit breaker, and the reliability of the circuit breaker is improved.

The circuit breaker frame 5 is further provided with an electric switch 3, the electric switch 3 is arranged at one end of the locking baffle 2 far away from the telescopic component 1, the electric switch 3 is arranged in the moving stroke of the locking baffle 2, and the electric switch 3 is connected with a low-voltage power supply of the circuit breaker. When the telescopic component 1 is driven to execute the forced opening action, the locking baffle plate 2 can trigger the electric switch 3 to disconnect the low-voltage power supply of the circuit breaker, so that the error closing of the circuit breaker due to electric faults is avoided.

Preferably, fasteners are further included, and fastening holes 411 are formed in the support shaft 41, the locking damper 2, and the brake release lever 42, respectively. The fastener simultaneously extends into the fastening hole 411 of the support shaft 41 and the locking damper 2 to fasten the support shaft 41 and the locking damper 2. The fastening member simultaneously extends into the fastening hole 411 of the support shaft 41 and the brake release lever 42 to fasten the support shaft 41 and the brake release lever 42. The fasteners may be bolts, studs, screws, self-tapping screws, wood screws, pins, and the like.

Also comprises a closing button 7 and a closing lever 6. The closing button 7 includes a first end remote from the closing lever 6 and a second end contacting the closing lever 6. Pressing the first end of the closing button 7, the second end of the closing button 7 pushes the closing lever 6 to rotate to execute the closing action. The lock baffle 2 comprises a segment lock chamber and a lock section 21, the segment lock chamber being connected to the support shaft 41. When the telescopic assembly 1 stretches out to push the locking baffle 2, the locking section 21 moves to the connection line of the first end and the second end of the closing button 7, and the locking section 21 is closer to the first end of the closing button 7, namely, the locking section 21 blocks the first end of the closing button 7. At this time, an operator cannot finish closing by pressing one end of the closing button 7, so that the possibility of misoperation of the operator is reduced, and the reliability of the circuit breaker with the forced opening structure is improved.

The closing lever 6 is rotatably sleeved on the supporting shaft 41, and when the locking baffle 2 drives the supporting shaft 41 to rotate, the supporting shaft 41 does not drive the closing lever 6 to rotate, so that the interference of forced opening and closing actions is avoided.

The specific working procedure of the utility model is as follows:

When the breaker is in an abnormal condition and forced opening is required, an operator operates the telescopic end of the telescopic assembly 1 to extend the telescopic end in the rotation direction of the support shaft 41 when the breaker is opened. The extending telescopic end jacks up the locking section 21, so that the whole locking baffle 2 rotates around the axis of the supporting shaft 41, drives the supporting shaft 41 to rotate, drives the brake release lever 42 fixedly connected with the supporting shaft 41 to rotate, and completes the forced brake release action. In the process, the movable locking baffle 2 triggers the electric switch 3 to disconnect the low-voltage power supply of the circuit breaker, the locking section 21 blocks the first end of the closing button 7, and at the moment, closing can not be completed by pressing the closing button 7, so that the functions of forced opening and locking closing are realized.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model, which are within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (8)

1. A circuit breaker with a forced tripping structure, characterized in that it comprises: Expansion joint, mounted on the circuit breaker frame; The tripping assembly includes: A support shaft is rotatably mounted on the circuit breaker frame; The trip lever is fixedly connected to the support shaft; A locking baffle is fixedly connected to the support shaft at one end and set within the telescopic path of the telescopic assembly at the other end. Wherein, the extension direction of the telescopic component is in the direction of rotation of the support shaft when the circuit breaker is tripped; the extension of the telescopic component pushes the locking baffle, the locking baffle drives the support shaft to rotate, and the support shaft drives the tripping lever to rotate to perform the tripping action. 2. The circuit breaker with a forced tripping structure as described in claim 1, characterized in that: an electrical switch is further provided on the circuit breaker frame, the electrical switch is located at the end of the locking baffle away from the telescopic assembly, the electrical switch is located within the moving stroke of the locking baffle, and the electrical switch is connected to the low-voltage power supply of the circuit breaker. 3. The circuit breaker with a forced tripping structure as described in claim 1, characterized in that: it further includes a closing button and a closing lever; the closing button includes a first end away from the closing lever and a second end in contact with the closing lever; when the first end of the closing button is pressed, the second end of the closing button pushes the closing lever to rotate and perform a closing action. 4. The circuit breaker with a forced tripping structure as described in claim 3, characterized in that: the locking baffle includes a tripping section and a locking section, the tripping section being connected to the support shaft; when the telescopic component extends to push the locking baffle, the locking section moves to the line connecting the first end and the second end of the closing button, the locking section being closer to the first end of the closing button. 5. The circuit breaker with a forced tripping structure as described in claim 3, characterized in that: the closing lever is rotatably sleeved on the support shaft. 6. The circuit breaker with a forced tripping structure as described in claim 1, characterized in that: it further includes fasteners, and fastening holes are respectively provided on the support shaft, the locking baffle, and the tripping lever; the fasteners simultaneously extend into the fastening holes of the support shaft and the locking baffle, and fasten the support shaft and the locking baffle; the fasteners simultaneously extend into the fastening holes of the support shaft and the tripping lever, and fasten the support shaft and the tripping lever. 7. The circuit breaker with a forced tripping structure as described in claim 1, characterized in that: the locking baffle is bent at the end near the support shaft and fits against the surface of the support shaft. 8. The circuit breaker with a forced tripping structure as described in claim 1, wherein the telescopic component is a special mechanical lock for high-voltage switchgear equipment.