CN221040928U - Combined switch device with circuit breaker and isolating switch - Google Patents

Abstract

The utility model provides a combined switch device with a circuit breaker and a disconnecting switch, which comprises a disconnecting switch front mounting plate and a disconnecting switch rear supporting plate, wherein one sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate are fixedly connected with an insulating supporting seat through screws, insulating main shafts are arranged on the inner sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate, a contact blade is fixedly connected to one side of the insulating main shaft, a grounding transverse rib is arranged on the other sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate, and a supporting sleeve is arranged at one end of the insulating main shaft. The combined switch device with the circuit breaker and the isolating switch solves the problems that the existing isolating switches cannot isolate high-voltage power when being overhauled or installed, so that personnel and equipment cannot be ensured to be safe when the equipment is overhauled or installed.

Description

Combined switch device with circuit breaker and isolating switch

Technical Field

The utility model relates to the technical field of combination switches, in particular to a combination switch device with a circuit breaker and an isolating switch, which is insulated by adopting dry air or nitrogen and is suitable for the field of 12kV/24kV power transmission and distribution looped networks.

Background

At present, most of circuit breakers and isolating switch devices in the field of power transmission and distribution looped networks adopt Sf6 insulating gas as an insulating medium. Has great influence on environmental pollution.

Second, the individual circuit breaker units do not provide reliable isolation breaks during use operation. When the equipment is overhauled or installed, the safety of personnel and equipment cannot be ensured, and certain use defects exist.

Therefore, it is necessary to provide a new combined switch device with a circuit breaker and a disconnecting switch, and the advantages of safety, reliability, environmental protection, miniaturization and the like are realized. Solves the technical problems.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a combined switch device with a circuit breaker and an isolating switch, which is convenient for isolating high-voltage current.

The utility model provides a combined switch device with a circuit breaker and a disconnecting switch, which comprises a disconnecting switch front mounting plate and a disconnecting switch rear supporting plate, wherein one sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate are fixedly connected with an insulating supporting seat through screws, insulating main shafts are arranged on the inner sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate, a contact blade is fixedly connected to one side of the insulating main shafts, grounding transverse ribs are arranged on the other sides of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate, a supporting sleeve is arranged at one end of the insulating main shafts, grounding seats are arranged on the inner walls of the disconnecting switch front mounting plate and the disconnecting switch rear supporting plate, a grounding steel bar is fixedly connected to one side of the grounding seats, a first static contact seat is arranged at the bottom of the insulating main shaft, a second static contact seat is arranged at the bottom of the insulating supporting seat, and a contact blade spring is welded on the outer sides of the contact blades.

The present utility model provides a combined switch device having a circuit breaker and a disconnecting switch, wherein the insulating main shaft is preferably made of high-strength nylon.

Compared with the prior art, the utility model has the beneficial effects that:

The insulating main shaft rotates clockwise to enable the contact blade to rotate clockwise to a closing position and simultaneously contact with the second static contact seat, at the moment, the contact blade spring applies pressure inwards, current is led out of a line outlet end of the circuit breaker through the contact blade, the first static contact seat and a line outlet busbar on the second static contact seat during closing, the whole work is completed, the insulating main shaft rotates clockwise to drive the contact blade to rotate clockwise to a breaking position and simultaneously is broken by the circuit breaker when breaking, and meanwhile, the current is also broken along with breaking of the circuit breaker to isolate and subdivide the breaking, so that the whole work is completed, and the high-voltage power supply can be isolated, thereby ensuring the safety of personnel and equipment when equipment is overhauled or installed, and solving the problems that the existing isolating switches cannot isolate the high-voltage power supply when the equipment is overhauled or installed, and the safety of the personnel and the equipment cannot be ensured when the equipment is overhauled or installed.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a combined switching device with a circuit breaker and a disconnecting switch according to the present utility model;

FIG. 2 is a schematic diagram of an insulating support base according to the present utility model;

FIG. 3 is a schematic structural diagram of a first stationary contact and a second stationary contact according to the present utility model;

Fig. 4 is a schematic structural view of a contact spring according to the present utility model.

Reference numerals in the drawings: 1. a front mounting plate of the isolating switch; 2. an insulating support base; 3. a rear support plate of the isolating switch; 4. an insulating main shaft; 5. a contact blade; 6. a grounding transverse rib; 7. a support sleeve; 8. a grounding seat; 9. a grounded steel bar; 10. the first static contact seat; 11. the second static contact seat; 12. and a contact knife spring.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. The connection relationships shown in the drawings are for convenience of clarity of description only and are not limiting on the manner of connection.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component, or intervening components may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should also be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and limited; either mechanically or electrically, or by communication between two components. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4 in combination. The utility model provides a combination switch device with circuit breaker and isolator, including mounting panel 1 and isolator back backup pad 3 before the isolator, mounting panel 1 before the isolator and one side of backup pad 3 behind the isolator all are provided with insulating spindle 4 through screw fixedly connected with insulating supporting seat 2, the inboard of backup pad 3 behind the isolator before the mounting panel 1 and the isolator, one side fixedly connected with of insulating spindle 4 touches blade 5, the opposite side of backup pad 3 all is provided with ground connection transverse bar 6 before mounting panel 1 after the isolator, one end of insulating spindle 4 is provided with supporting sleeve 7, the inner wall of backup pad 3 all is provided with ground connection seat 8 behind mounting panel 1 and the isolator before the isolator, one side fixedly connected with ground connection steel row 9 of ground connection seat 8, the bottom of insulating spindle 4 is provided with first static contact seat 10, the bottom of insulating supporting seat 2 is provided with second static contact seat 11, the outside welding of touching blade 5 has touch knife spring 12.

In the specific implementation process, as shown in fig. 1-4, the insulating main shaft 4 is made of high-strength nylon.

It should be noted that: the top of the second static contact seat 11 is provided with a busbar, when in use, the insulating main shaft 4 arranged between the front mounting plate 1 of the isolating switch and the rear support plate 3 of the isolating switch rotates clockwise to drive the supporting sleeve 7 to rotate, so that the contact blades 5 rotate clockwise to a closing position and simultaneously contact with the second static contact seat 11, the contact blade springs 12 arranged on the outer sides of the two contact blades 5 apply pressure inwards, current passes through the contact blades 5 from the wire outlet ends of the circuit breaker during closing, and passes through the first static contact seat 10 arranged on the insulating support seat 2, and then passes through the wire outlet busbar arranged on the second static contact seat 11, so that the whole work is completed, the insulating main shaft 4 rotates clockwise to drive the contact blades 5 to rotate clockwise to a closing position and simultaneously is firstly separated by the circuit breaker, meanwhile, the current is also separated along with the opening of the circuit breaker to complete the whole work, the insulating main shaft 4 rotates anticlockwise to drive the contact blades 5 to rotate anticlockwise to a grounding position, and simultaneously contact with the grounding transverse bar 6 and the grounding seat 8 arranged on the grounding steel bar 9, and the contact springs 12 are arranged on the outer sides of the whole contact blades 5 during closing, and the whole work is completed.

The utility model provides a combined switch device with a circuit breaker and a disconnecting switch, which has the following working principle:

when the electric switch is used, the insulating main shaft 4 rotates clockwise to enable the contact blade 5 to rotate clockwise to a switch-on position and simultaneously to contact with the second static contact seat 11, at the moment, the contact blade spring 12 applies pressure inwards, current passes through the contact blade 5, the first static contact seat 10 and the outlet busbar on the second static contact seat 11 from the outlet end of the circuit breaker during switch-on, the whole work is completed, the insulating main shaft 4 rotates clockwise to drive the contact blade 5 to rotate clockwise to a switch-off position, and meanwhile, the circuit breaker is firstly switched off during switch-off, and the current is also switched off along with switch-off of the circuit breaker to isolate and switch off the whole work, so that high-voltage power can be isolated, and the safety of personnel and equipment during equipment maintenance or installation is ensured.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways, such as rotated 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components unless context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (2)

1. The utility model provides a combination switch device with circuit breaker and isolator, its characterized in that, backup pad (3) behind mounting panel (1) and isolator before including the isolator, one side of backup pad (3) all is through screw fixedly connected with insulating supporting seat (2) behind mounting panel (1) and the isolator before the isolator, the inboard of backup pad (3) all is provided with insulating main shaft (4) behind mounting panel (1) and the isolator before the isolator, one side fixedly connected with contact blade (5) of insulating main shaft (4), the opposite side of backup pad (3) all is provided with ground connection transverse rib (6) behind mounting panel (1) and the isolator before the isolator, one end of insulating main shaft (4) is provided with supporting sleeve (7), the inner wall of backup pad (3) all is provided with ground connection seat (8) behind mounting panel (1) and the isolator before the isolator, one side fixedly connected with ground connection steel row (9) of ground connection seat (8), the bottom of insulating main shaft (4) is provided with first quiet seat (10), the bottom of insulating supporting seat (2) all is provided with quiet seat (5) of contact blade (12), the bottom of insulating main shaft (2) is provided with quiet seat (12).

2. The combined switching device with circuit breaker and disconnector according to claim 1, characterized in that the insulating main shaft (4) is of high strength nylon material.