CN221079883U - Insulating high-voltage isolating switch - Google Patents

Abstract

The utility model discloses an insulating high-voltage isolating switch, which comprises an isolating switch main body, wherein a base, a post insulator and a grounding gate are arranged on the isolating switch main body, the post insulator is fixed on two main conductive columns on the base, one end part of the grounding gate is hinged to one main conductive column on the base, and the other end part of the grounding gate is movably abutted to the other main conductive column of the base; the grounding gate control device is fixedly connected with the two end parts of the grounding gate through a synchronous toothed belt. The device is provided with the grounding gate control device, so that on one hand, the opening and closing of the grounding gate on the high-voltage isolating switch are facilitated; on the other hand, the tooth-shaped synchronous belt is connected with the grounding gate, so that the occurrence of the conduction phenomenon is prevented.

Description

Insulating high-voltage isolating switch

Technical Field

The utility model relates to the technical field of high-voltage isolating switches, in particular to an insulating high-voltage isolating switch.

Background

The high-voltage isolating switch is an important switching device in power plants and substation electrical systems, and is matched with a high-voltage circuit breaker. The isolating switch is suitable for indoor devices with three-phase alternating current of 50Hz and rated voltage of 12 KV. The high-voltage equipment is connected, disconnected or used for switching the line under the condition of voltage and no load current.

The high-voltage power supply has the main functions of ensuring the safety of the high-voltage electric appliance and the device during maintenance work, playing the role of isolating voltage, being incapable of cutting off and throwing load current and switching on and off short-circuit current, being only used for certain switching operations without generating strong electric arcs, namely not having an arc extinguishing function; the voltage classes are divided into an indoor type and an outdoor type according to different installation places, and are divided into a single column type, a double column type and a three column type according to the number of insulating columns, and each voltage class is provided with optional equipment.

When the high-voltage isolation device is used, a high-voltage isolation tool is needed to be used for closing the grounding gate hung on the high-voltage isolation device, so that the isolation voltage is realized, and then maintenance work is carried out. However, when the high-voltage isolating switch is used in daily life, the high-voltage isolating switch is located at a higher position, and when an operator works by using the tool, the grounding switch is not easy to close due to the height problem and the angle problem, and the grounding switch on the isolating switch is easy to damage.

Disclosure of Invention

In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide an insulated high voltage disconnector.

According to the technical proposal provided by the embodiment of the application, an insulating high-voltage isolating switch is provided with a grounding gate control device below the isolating switch main body, the grounding gate control device is fixedly connected with the two end parts of the grounding gate through a synchronous toothed belt,

The isolating switch main body is provided with a base, a post insulator and a grounding gate, wherein the post insulator is fixed on two main conductive posts on the lower end surface of the base, one end part of the grounding gate is hinged with one main conductive post on the base, the other end of the grounding gate is movably abutted with the other main conductive post on the base,

The connecting point of the grounding gate and the main conductive post on the base is positioned between the two connecting points of the synchronous toothed belt and the grounding gate.

Further, a toothed belt limiting cylinder on the ground brake control device is fixed on the upper end face of a gear placing shell which is horizontally placed, four toothed belt limiting rollers are arranged at the upper end part in the toothed belt limiting cylinder, a rotatable gear is arranged in the gear placing shell, and a wheel shaft of the gear penetrates through the gear placing shell and is fixedly connected with a rocker.

Further, the number of the synchronous toothed belts is one, one end of each synchronous toothed belt is fixedly connected with one end of the grounding brake, the other end of each synchronous toothed belt movably penetrates through the toothed belt limiting roller and the gear in the toothed belt limiting cylinder and then is fixedly connected with the other end of the grounding brake, and gear teeth on each synchronous toothed belt are meshed with the corresponding gear.

Further, the number of the tooth-shaped belt limiting rollers is four, the four tooth-shaped belt limiting rollers are sequentially arranged from left to right and are positioned on the same horizontal plane, and the four tooth-shaped belt limiting rollers are combined in pairs to respectively limit the two end parts of the synchronous tooth-shaped belt.

Furthermore, the grounding gate control device is provided with a mounting base, so that the grounding gate control device is convenient to fixedly mount.

Further, the base is provided with a mounting hole.

In summary, the application has the following beneficial effects: the device of the application has the following advantages:

1. The device is provided with the grounding gate control device, so that on one hand, the opening and closing of the grounding gate on the high-voltage isolating switch are facilitated; on the other hand, the tooth-shaped synchronous belt is connected with the grounding gate, so that the occurrence of the conduction phenomenon is prevented;

2. The grounding gate control device provided by the device adopts the lever principle, two ends of the tooth-shaped synchronous belt are arranged at two end parts of the grounding gate, a hinge point is arranged at a position between the grounding gate and the connecting point of the tooth-shaped synchronous belt, and the situation that the grounding gate moves in an arc shape by taking the hinge point as the center of a circle is realized through different acting forces of the gear on the two ends of the tooth-shaped synchronous belt, so that the grounding gate and a main conductive column on a high-voltage isolating switch are opened and closed.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of the overall apparatus of the present utility model;

FIG. 2 is a schematic diagram of a ground gate control device according to the present utility model;

Fig. 3 is a schematic diagram of the connection structure of the gear, the gear housing and the rocker according to the present utility model.

Reference numerals in the drawings: a disconnecting switch body-1; a base-11, a post insulator-12 and a ground gate-13; a ground gate control device-2; the toothed belt limiting cylinder-21 and the toothed belt limiting roller-211; a gear housing-22; gear-221; rocker-23; synchronous toothed belt-3.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1, a post insulator 12 sleeved on two main conductive posts and a grounding gate 13 with one end hinged with the main conductive post and the other end abutting against and contacting the other main conductive post are arranged on the lower end face of a base 11 on a main body 1 of the insulating high-voltage isolating switch;

The grounding gate control device 2 is located below the isolating switch main body 1, and the grounding gate control device 2 is fixedly connected with two end parts of the grounding gate 13 through the synchronous toothed belt 3, one end of the synchronous toothed belt 3 movably penetrates through two toothed belt limiting rollers 211 on the left side of the upper end part of the toothed belt limiting cylinder 21, and after being meshed with a gear 221 in a gear placing shell 22 on the lower end surface of the toothed belt limiting cylinder 21, the other end of the synchronous toothed belt 3 movably penetrates through two toothed belt limiting rollers 211 on the right side of the upper end part of the toothed belt limiting cylinder 21.

As shown in fig. 1 and 2, four toothed belt limit rollers 211 are placed in sequence from left to right and are located on the same horizontal plane, one end of the synchronous toothed belt 3 passes through a gap between two toothed belt limit rollers 211 located at the left end of the toothed belt limit cylinder 21, and the other end passes through a gap between two toothed belt limit rollers 211 located at the right end of the toothed belt limit cylinder 21.

The gear placing shell 22 is fixed on the lower end face of the toothed belt limiting cylinder 21, and the gear placing shell 22 is communicated with the toothed belt limiting cylinder 21.

As shown in fig. 3, the gear 221 is rotatably fixed in the gear housing 22 through a shaft, and the shaft of the gear 221 is fixedly connected with the rocker 23 through a bearing after penetrating through the end surface of the gear housing 22.

When in use, the isolating switch main body 1 is fixed on a high-voltage wire rod through the base 11 and is connected with the high-voltage wire through a wire; then the grounding gate control device 2 is fixedly installed on the high-voltage wire rod through the installation base, and during installation, the grounding gate control device is mainly installed according to the length of the synchronous toothed belt 3, and the requirements are that: the gear 221 in the gear housing case 22 meshes with the timing belt 3.

When the high voltage line needs to be overhauled, the grounding gate 13 needs to be closed, namely, the situation shown in fig. 2.

After the overhaul is completed, the rocker 23 is manually rotated, so that the rocker 23 drives the gear 221 to rotate anticlockwise, and thus the synchronous toothed belt 3 moves rightwards, the left end of the grounding gate 13 is subjected to a downward pulling force, namely, the left end of the grounding gate 13 rotates downwards by taking the hinging point of the grounding gate 13 and the isolating switch main body 1 as the center of a circle, and the left end of the grounding gate 13 is far away from the main conductive column on the isolating switch main body 1.

When the switch is needed to be closed, the rocker 23 is manually rotated, so that the rocker 23 drives the gear 221 to rotate clockwise, and the synchronous toothed belt 3 moves leftwards, namely, the right end of the grounding brake 13 is subjected to a downward pulling force, namely, the right end of the grounding brake 13 rotates downwards by taking the hinging point of the grounding brake 13 and the isolating switch main body 1 as the circle center, and then the left end of the grounding brake 13 rotates upwards, so that the grounding brake contacts with the main conductive column on the isolating switch main body 1 to realize the closing.

The high-voltage isolating switch ensures the safety of the high-voltage electric appliance and the device during maintenance work, plays the role of isolating voltage, cannot be used for switching off, inputting load current and switching on/off short-circuit current, and can only be used for certain switching operations without generating strong electric arcs, namely, the high-voltage isolating switch has no arc extinguishing function; the voltage classes are divided into an indoor type and an outdoor type according to different installation places, and are divided into a single column type, a double column type and a three column type according to the number of insulating columns, and each voltage class is provided with optional equipment. The part of the high-voltage distribution device which needs to be powered off can be reliably isolated from the electrified part, so that the safety of maintenance work is ensured. The contacts of the high-voltage isolating switch are all exposed in the air and have obvious disconnection points, and the isolating switch is not provided with an arc extinguishing device, so that the isolating switch cannot be used for cutting off load current or short-circuit current, otherwise under the action of high voltage, the disconnection points generate strong electric arcs, are difficult to self-extinguish, and even can cause flashover (relative ground or inter-phase short circuit), burn equipment and endanger personal safety, and the serious accident is the so-called load-pull isolating switch. The high voltage isolation switch may also be used to perform switching operations of certain circuits to change the manner in which the system operates. For example, in a dual bus circuit, a high voltage isolation switch may be used to switch the circuit in operation from one bus to another _.

The above description is only illustrative of the preferred embodiments of the application and the technical principles employed. Meanwhile, the scope of the application is not limited to the technical scheme formed by the specific combination of the technical features, and other technical schemes formed by any combination of the technical features or the equivalent features thereof without departing from the inventive concept are also covered. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims (7)

1. An insulating high voltage isolating switch, includes isolator main part (1), its characterized in that: also included is a method of manufacturing a semiconductor device,

The isolating switch is characterized in that a base (11), a post insulator (12) and a grounding gate (13) are arranged on the isolating switch main body (1), the post insulator (12) is fixed on two main conductive posts on the base (11), one end part of the grounding gate (13) is hinged to one main conductive post on the base (11), and the other end part of the grounding gate is movably abutted to the other main conductive post of the base (11);

the grounding gate control device (2), the grounding gate control device (2) is fixedly connected with the two end parts of the grounding gate (13) through the synchronous toothed belt (3).

2. An insulated high voltage disconnector according to claim 1, characterized in that: the grounding gate control device (2) is provided with a toothed belt limiting cylinder (21), a gear placing shell (22) and a rocker (23), the gear placing shell (22) is fixed on the lower end surface of the toothed belt limiting cylinder (21),

The upper end part in the toothed belt limiting cylinder (21) is provided with a toothed belt limiting roller (211),

A gear (221) is arranged in the gear placing shell (22), and a wheel shaft of the gear (221) fixedly penetrates through the end face of the gear placing shell (22) through a bearing and is fixedly connected with the rocker (23).

3. An insulated high voltage disconnector according to claim 2, characterized in that: the number of the synchronous toothed belts (3) is one, one end of each synchronous toothed belt (3) is fixedly connected with one end of each grounding brake (13), and the other end of each synchronous toothed belt is movably penetrated through the toothed belt limiting roller (211) and the gear (221) in the toothed belt limiting cylinder (21) and then is fixedly connected with the other end of each grounding brake (13).

4. An insulated high voltage disconnector according to claim 3, characterized in that: the synchronous toothed belt (3) is meshed with the gear (221).

5. An insulated high voltage disconnector according to claim 3, characterized in that: the number of the tooth-shaped belt limiting rollers (211) is four, and the tooth-shaped belt limiting rollers (211) are combined in pairs to respectively limit the end parts at the two ends of the synchronous tooth-shaped belt (3).

6. An insulated high voltage disconnector according to claim 1, characterized in that: the ground gate control device (2) is provided with a mounting base.

7. An insulated high voltage disconnector according to claim 1, characterized in that: the base (11) is provided with a mounting hole.