CN113990702A

CN113990702A - Isolating switch

Info

Publication number: CN113990702A
Application number: CN202111176763.8A
Authority: CN
Inventors: 闫艳艳; 李涛; 曹勇军; 戴罡; 葛飞; 朱亚伟; 程鑫
Original assignee: Jiangsu Daquan Kaifan Switch Co ltd
Current assignee: Jiangsu Daquan Kaifan Switch Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-01-28

Abstract

The utility model provides an isolator, relates to low-voltage apparatus components and parts equipment field, isolator is provided with quick divide-shut mechanism and divide-shut brake padlock mechanism on its body, cut off when quick divide-shut mechanism is used for the outage isolator, divide-shut brake padlock mechanism is used for not relying on the handle to realize the function of divide-shut brake padlock. When the power is cut off, the isolating switch is cut off only by the quick on-off mechanism, so that the safety performance of the switch is improved. Meanwhile, the isolating switch is provided with a switching-on and switching-off padlock function on the body, and the switching-on and switching-off padlock can be realized without depending on a handle, so that misoperation is prevented.

Description

Isolating switch

Technical Field

The invention relates to the field of low-voltage electrical apparatus component equipment, in particular to an isolating switch.

Background

In order to protect power transmission and distribution circuits from open circuit and overcurrent, it is generally necessary to connect fuses in series in the power distribution circuit as protection devices, and to install a disconnecting switch and control the circuit by frequent manual operation. The disconnecting switch realizes the opening and closing of the moving and static contacts through the contained operating mechanism, but the existing operating mechanism is complex in design, many in parts and high in cost, and the function of the disconnecting switch padlock is on the handle, only the opening padlock is used, and misoperation cannot be prevented.

Disclosure of Invention

The present invention is directed to a disconnector to solve the above problems.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiments of the present invention, a body of an isolation switch is provided with a quick opening and closing mechanism and a closing padlock mechanism, the quick opening and closing mechanism is used for cutting off the isolation switch when power is off, and the closing padlock mechanism is used for realizing the function of a closing padlock without depending on a handle.

Optionally, the disconnector comprises a contact arc extinguishing system and a mechanism part, and the contact arc extinguishing system and the mechanism part are locked by a screw connector.

Optionally, the screw connection comprises a through screw.

Optionally, the mechanism part includes base, operating axis, main torsional spring, indicator, extension spring and runs through the axle, is equipped with spring hole, reset spring pole and runs through a waist of hole on the operating axis, connects corresponding part respectively, and the operating axis rotates around the base centre bore, drives corresponding part and rotates, and main torsional spring one end is placed in the epaxial downthehole of operating, and one end is placed downthehole on the base, and at the rotatory in-process of pivot, the one end of main torsional spring rotates along with the pivot, and the center pin removes thereupon simultaneously, realizes the process of compression-dead point-release.

Optionally, a sliding groove is formed in the base, a push rod is arranged on the operating shaft, and the push rod pushes the indicating piece in the rotating process of the operating shaft, so that the leg of the indicating piece slides in the sliding groove of the base, and the state indicating function is achieved.

Optionally, the contact arc extinguishing system comprises a contact, a rotating shaft system and a housing, the contact pressure is realized through a plate spring in the rotating shaft system, and the rotation of the mechanism operating shaft drives the rotating shaft of the contact system to rotate through a penetrating shaft to drive the movable and static contacts to be separated and combined.

Optionally, the padlock part comprises a padlock plate, a shaft and a pressure spring, one end of the pressure spring is fixed on the upper cover, the other end of the pressure spring is placed on the padlock plate, the upper cover is provided with a sliding groove, the operating shaft is provided with a stop lever, when the isolation switch padlock is needed, the padlock plate is pulled, the shaft slides upwards along the sliding groove, the padlock plate stops the rotation of the operating shaft, and the function of a switching-on and switching-off padlock is realized; after the lock is withdrawn, the padlock plate automatically resets to the initial state under the pressure of the spring.

The embodiment of the invention has the beneficial effects that: when the power is cut off, the isolating switch is cut off only by the quick on-off mechanism, so that the safety performance of the switch is improved. Meanwhile, the isolating switch is provided with a switching-on and switching-off padlock function on the body, and the switching-on and switching-off padlock can be realized without depending on a handle, so that misoperation is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an embodiment of a disconnector according to the invention;

FIG. 2 is a view showing a structure of a part of a mechanism according to an embodiment of the present invention;

FIG. 3 is a structural view of a mechanism indicating part of the embodiment of the present invention;

FIG. 4 is a diagram of a contact arc extinguishing system according to an embodiment of the present invention;

fig. 5 is a partial block diagram of a padlock according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices 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 invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a disconnecting switch with a simple operating mechanism, the whole disconnecting switch operating mechanism has a simple design, and when power is needed to be cut off, the disconnecting switch is only needed to be cut off by a fast switching-on/off mechanism, so that the safety performance of the switch is improved.

Meanwhile, the isolating switch is provided with a switching-on and switching-off padlock function on the body, and the switching-on and switching-off padlock can be realized without depending on a handle, so that misoperation is prevented.

The isolating switch consists of two modules, namely a contact arc extinguishing system 10 and a mechanism part 20, and the middle of the two modules is locked through a through screw, as shown in figure 1.

The mechanism portion 20 includes a base 3, an operation shaft 8, a main torsion spring 6, an indicator 5, a return tension spring 9, and a through shaft 7. The operating shaft 8 is provided with a spring hole, a reset spring rod and a waist hole 16 penetrating through the shaft 7, which are respectively connected with corresponding parts, and the operating shaft 8 rotates around the central hole of the base 3 to drive the corresponding parts to rotate. One end of the main torsion spring 6 is arranged in a hole on the operating shaft 8, the other end of the main torsion spring is arranged in a hole on the base 3, and in the rotating process of the rotating shaft 11, one end of the main torsion spring 6 rotates along with the rotating shaft 11, and meanwhile, the central shaft moves along with the rotating shaft, so that the process of compression-dead point-release is realized. As shown in fig. 2.

The base 3 is provided with a sliding groove, the operating shaft 8 is provided with a push rod 15, and the push rod 15 pushes the indicating part 5 in the rotating process of the operating shaft 8, so that the leg part 14 of the indicating part slides in the sliding groove 4 of the base, and the state indicating function is realized. As shown in fig. 3.

The contact arc extinguishing system 10 comprises a contact 1, a contact 2, a rotating shaft 11 system and a housing 12, and the contact pressure is realized through a plate spring 13 in the rotating shaft 11 system. The rotation of the mechanism operating shaft 8 drives the contact system rotating shaft 11 to rotate through the penetrating shaft 7, and the moving contact and the static contact are driven to be separated and combined. As shown in fig. 4.

The padlock part comprises a padlock plate 18, a shaft 21 and a pressure spring 19, one end of the pressure spring 19 is fixed on an upper cover, one end of the pressure spring is placed on the padlock plate 18, the upper cover is provided with a sliding groove, the operating shaft 8 is provided with a stop lever 17, when the isolation switch padlock is needed, the padlock plate 18 is pulled up, the shaft 21 slides upwards along the sliding groove, the padlock plate 18 blocks the rotation of the operating shaft 8, and the function of a switching-on and switching-off padlock is realized; after the lock is withdrawn, the padlock plate 18 automatically returns to the initial state under the pressure of the spring. As shown in fig. 5.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an isolator, its characterized in that, isolator is provided with quick divide-shut mechanism and divide-shut brake padlock mechanism on its body, quick divide-shut mechanism cuts off when being used for the outage isolator, divide-shut brake padlock mechanism is used for not relying on the handle to realize the function of divide-shut brake padlock.

2. The disconnector according to claim 1, characterized in that it comprises a contact quenching system and a mechanism part, which are locked in between by means of screws.

3. The disconnector of claim 2, wherein the threaded member comprises a through screw.

4. The isolating switch according to claim 2, wherein the mechanism portion includes a base, an operating shaft, a main torsion spring, an indicating member, a return tension spring and a through shaft, the operating shaft is provided with a spring hole, a return spring rod and a through shaft waist hole, which are respectively connected with corresponding parts, the operating shaft rotates around a central hole of the base to drive the corresponding parts to rotate, one end of the main torsion spring is placed in the hole on the operating shaft, and the other end of the main torsion spring is placed in the hole on the base.

5. The isolating switch according to claim 4, wherein the base is provided with a sliding groove, the operating shaft is provided with a push rod, and the push rod pushes the indicating member to enable the leg part to slide in the sliding groove of the base in the rotating process of the operating shaft, so as to realize the state indicating function.

6. The isolating switch according to claim 5, wherein the contact arc extinguishing system comprises a contact, a rotating shaft system and a housing, the contact pressure is realized by a plate spring in the rotating shaft system, and the rotation of the mechanism operating shaft drives the rotating shaft of the contact system to rotate by a penetrating shaft so as to drive the moving contact and the static contact to be separated and combined.

7. The isolating switch of claim 6, wherein the padlock part comprises a padlock plate, a shaft and a pressure spring, one end of the pressure spring is fixed on the upper cover, the other end of the pressure spring is placed on the padlock plate, the upper cover is provided with a sliding groove, the operating shaft is provided with a stop lever, when the isolating switch padlock is needed, the padlock plate is pulled, the shaft slides upwards along the sliding groove, and the padlock plate stops the rotation of the operating shaft, so that the function of a switching-on and switching-off padlock is realized; after the lock is withdrawn, the padlock plate automatically resets to the initial state under the pressure of the spring.