CN213242319U - On-load switch of current transformer - Google Patents

Abstract

The utility model discloses a current transformer on-load switch, include: a protective shell; the bottom end of the protective shell is provided with a connecting column; the base is arranged at the bottom end of the connecting column; the inner cavity of the protective shell is symmetrically provided with a plurality of placing blocks along a central point; and the inner end of the placing block is provided with the on-load switch. This current transformer has switch, through setting up the protective housing, can protect and dampproofing the processing to the switch of having a load when out of work, can extend the protective housing with a plurality of switches of having a load simultaneously through rotating knob one, facilitate the use, easy operation, the practicality is stronger.

Description

On-load switch of current transformer

Technical Field

The utility model relates to a current transformer technical field specifically is a current transformer on-load switch.

Background

The current transformer is an instrument for converting a large primary side current into a small secondary side current according to the electromagnetic induction principle to measure, and consists of a closed iron core and a winding, wherein the primary side winding has few turns and is connected in a circuit of the current to be measured in series;

in order to measure the current transformer conveniently, a worker often uses the on-load switch to measure, but in order to clamp the block measurement efficiency, the worker often needs a plurality of transformers to measure simultaneously, the switches with the same number are not convenient to regulate, the on-load switch is easy to damp, the quality is reduced, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a current transformer on-load switch to solve prior art's current transformer on-load switch at least and use the inconvenient problem of measurement.

In order to achieve the above object, the utility model provides a following technical scheme: a current transformer on-load switch comprising:

a protective shell;

the bottom end of the protective shell is provided with a connecting column;

the base is arranged at the bottom end of the connecting column;

the inner cavity of the protective shell is symmetrically provided with a plurality of placing blocks along a central point;

and the inner end of the placing block is provided with the on-load switch.

Preferably, the bottom end of the base is provided with a non-slip mat.

Preferably, the middle part of the top end of the protective shell is provided with a first rotating button, the bottom end of the first rotating button extends into the inner cavity of the protective shell through a connecting shaft, and a first bevel gear is in interference fit with the first rotating button.

Preferably, the bottom end of the first bevel gear is meshed with a plurality of second bevel gears, the center holes of the second bevel gears are in interference fit with one ends of the screws, the other ends of the screws are in threaded connection with one ends of telescopic rods, and the other ends of the telescopic rods are provided with the placing blocks.

Preferably, one end of the telescopic rod is provided with a sliding block, and the sliding block is arranged in a sliding groove formed in the inner cavity of the protective shell in a sliding mode.

Preferably, a plurality of moisture-proof blocks are arranged in the inner cavity of the protective shell around the placing block.

Preferably, a bottom plate is arranged at the bottom of the inner end of the placing block, a lifter is arranged at the top end of the bottom plate, a second rotating button is arranged at the front end of the lifter, and a load switch is arranged at the top end of the lifter.

Compared with the prior art, the beneficial effects of the utility model are that: this current transformer has switch, through setting up the protective housing, can protect and dampproofing the processing to the switch of having a load when out of work, can extend the protective housing with a plurality of switches of having a load simultaneously through rotating knob one, facilitate the use, easy operation, the practicality is stronger.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top cross-sectional view of FIG. 1;

fig. 3 is a schematic view of the load switch structure of fig. 1.

In the figure: 1. the protective housing, 2, spliced pole, 3, base, 4, slipmat, 5, turn button one, 6, bevel gear one, 7, bevel gear two, 8, screw rod, 9, telescopic link, 10, place the piece, 11, slider, 12, dampproofing piece, 13, bottom plate, 14, lift, 15, turn button two, 16, on-load switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a current transformer on-load switch comprising: the device comprises a protective shell 1, a connecting column 2, a base 3, a placing block 10 and a load switch 16, wherein the connecting column 2 is arranged at the bottom end of the protective shell 1; the bottom end of the connecting column 2 is provided with a base 3; a plurality of placing blocks 10 are symmetrically arranged in the inner cavity of the protective shell 1 along the central point; the inner end of the placing block 10 is provided with a load switch 16, and the load switch 16 is protected by the protective shell 1.

Preferably, the bottom end of the base 3 is provided with a non-slip pad 4, and the device is prevented from shaking by the non-slip pad 4.

Preferably, a first rotating button 5 is arranged in the middle of the top end of the protective shell 1, the bottom end of the first rotating button 5 extends into the inner cavity of the protective shell 1 through a connecting shaft, a first bevel gear 6 is in interference fit with the bottom end of the first rotating button 5, and the first bevel gear 6 is rotated by rotating the first rotating button 5.

As preferred scheme, furthermore, a plurality of bevel gears two 7 have been meshed to the bottom of bevel gear 6, and the centre bore interference fit of a plurality of bevel gears two 7 has one end of screw rod 8, and the other end threaded connection of screw rod 8 has one end of telescopic link 9, and the other end of telescopic link 9 is provided with places piece 10, drives through telescopic link 9 and places piece 10 and remove.

Preferably, one end of the telescopic rod 9 is provided with a slide block 11, and the slide block 11 is slidably arranged in a slide groove formed in the inner cavity of the protective shell 1, so that the telescopic rod 9 is prevented from rotating.

Preferably, a plurality of moisture-proof blocks 12 are arranged in the cavity of the protective shell 1 around the placing block 10, and moisture-proof is carried out on the load switch 16 through the moisture-proof blocks 12.

Preferably, a bottom plate 13 is arranged at the bottom of the inner end of the placing block 10, a lift 14 is arranged at the top end of the bottom plate 13, a second rotating button 15 is arranged at the front end of the lift 14, and a load switch 16 is arranged at the top end of the lift 14, so that the lift of the load switch 16 can be controlled by the lift 14, and the measurement is convenient.

The elevator in the scheme is the prior art, and can meet the requirements of the scheme.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.

When the device is used, the first rotating button 5 is rotated, the first rotating button 5 drives the first bevel gear 6 to rotate, the first bevel gear 6 drives the second bottom-meshed bevel gear 7 to rotate, the second bevel gear 7 drives the screw rod 8 to rotate, the screw rod 8 drives the telescopic rod 9 to extend outwards, the placing block 10 is driven to extend out of the protective shell 1, the on-load switch 16 is driven to move out of the protective shell 1, the second rotating button 15 is rotated to drive the lifter 14 to rise, the on-load switch 16 is conveniently connected with the current transformer for measurement, after measurement, the second rotating button 15 is rotated, the on-load switch 16 is lowered back into the placing block 10, the first rotating button 5 is rotated to enable the placing blocks 10 to retract into the protective shell 1, and the practicability is high.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "fixedly mounted," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A current transformer on-load switch, comprising:

a protective casing (1);

the bottom end of the protective shell (1) is provided with a connecting column (2);

the base (3) is arranged at the bottom end of the connecting column (2);

the inner cavity of the protective shell (1) is symmetrically provided with a plurality of placing blocks (10) along a central point;

the inner end of the placing block (10) is provided with the on-load switch (16).

2. A current transformer on-load switch according to claim 1, characterized in that the bottom end of the base (3) is provided with a non-slip pad (4).

3. The on-load switch of the current transformer according to claim 2, characterized in that a first rotating button (5) is arranged in the middle of the top end of the protective shell (1), the bottom end of the first rotating button (5) extends into the inner cavity of the protective shell (1) through a connecting shaft, and a first bevel gear (6) is in interference fit with the bottom end of the first rotating button.

4. The on-load switch of the current transformer according to claim 3, wherein a plurality of bevel gears II (7) are meshed at the bottom end of the bevel gear I (6), a plurality of central holes of the bevel gears II (7) are in interference fit with one end of a screw rod (8), the other end of the screw rod (8) is in threaded connection with one end of a telescopic rod (9), and the other end of the telescopic rod (9) is provided with a placing block (10).

5. The on-load switch of the current transformer according to claim 4, characterized in that one end of the telescopic rod (9) is provided with a sliding block (11), and the sliding block (11) is slidably arranged in a sliding groove formed in the inner cavity of the protective shell (1).

6. A current transformer on-load switch according to claim 5, characterized in that a plurality of moisture-proof blocks (12) are arranged in the inner cavity of the surrounding protective shell (1) of the placing block (10).

7. The on-load switch of the current transformer according to claim 6, characterized in that a bottom plate (13) is arranged at the bottom of the inner end of the placing block (10), a lifter (14) is arranged at the top end of the bottom plate (13), a second rotating button (15) is arranged at the front end of the lifter (14), and an on-load switch (16) is arranged at the top end of the lifter (14).

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