CN215265826U

CN215265826U - Current transformer with shell fixing function

Info

Publication number: CN215265826U
Application number: CN202120820989.6U
Authority: CN
Inventors: 蒋福锦
Original assignee: Shanghai Zheqi Electrical Appliance Co ltd
Current assignee: Shanghai Zheqi Electrical Appliance Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-21
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a current transformer with shell fixed function technical field, including the installation base, both ends evenly are provided with the cavity about the installation base, evenly install the spring in the cavity, and the embedding has the toper post, the awl, the equal fixed mounting in top of toper post has the connecting block, the connecting block is provided with the stay cord, the top of stay cord evenly runs through the top chamber wall of cavity, and fixed mounting has the pull ring, the bottom at both ends evenly is provided with the circular recess about the installation base, the even fixed mounting of cell wall of circular recess has the fixed block, the fixed block evenly articulates there is the gag lever post, the outer end of gag lever post evenly is provided with the torsional spring. The utility model discloses an installation base, fixed block, connecting block, stay cord, toper post, gag lever post, stopper and torsional spring's cooperation realizes replacing the screw to install current transformer, avoids the wall body to suffer the damage, can avoid the screw corrosion and cause to be difficult to dismantle simultaneously, has improved current transformer's practicality.

Description

Current transformer with shell fixing function

Technical Field

The utility model relates to a current transformer technical field specifically is a current transformer with shell fixed function.

Background

The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured.

Therefore, all current of a line always flows through the current transformer, the number of turns of the secondary side winding is large, the secondary side winding is connected in series in the measuring instrument and the protection loop, and the secondary side loop of the current transformer is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is small, and the working state of the current transformer is close to a short circuit. The current transformer converts a large current on the primary side into a small current on the secondary side for measurement, and the secondary side can not be opened.

Current transformer on the market is when installing, fixes through the screw mostly, because the tank wall of power box is thinner, when the installation, the screw can run through the chamber wall of power box usually, imbeds in the wall body, causes the wall body to damage. However, the screw is easy to be rusted after being used for a long time, takes a long time to disassemble, and is inconvenient to operate, so that the screw needs to be improved.

Based on this, the utility model designs a current transformer with shell fixed function puts to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a current transformer with shell fixed function to current transformer on the market that proposes in solving above-mentioned background art is when installing, fixes through the screw mostly, because the tank wall of power box is thinner, when the installation, the screw can run through the chamber wall of power box usually, during the embedding wall body, causes the wall body to damage. But the screw is easy to be rusted after long-time use, takes a long time to dismantle, and is very inconvenient to operate, so that the screw needs to be improved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a current transformer with shell fixed function, includes the installation base, the top fixed mounting of installation base has the current transformer body, both ends evenly are provided with the cavity about the installation base, evenly install the spring in the cavity to the embedding has the toper post, the top of toper post with the spring butt, the equal fixed mounting in top of toper post has the connecting block, the connecting block is provided with the stay cord, the top of stay cord evenly runs through the top chamber wall of cavity to fixed mounting has the pull ring, the bottom at both ends evenly is provided with the circular recess about the installation base, and the even fixed mounting of cell wall of circular recess has the fixed block, the fixed block evenly articulates there is the gag lever post, the outer end of gag lever post evenly is provided with the torsional spring, the equal fixed mounting in inner of gag lever post has the stopper.

Preferably, the bottom of the limiting rod is uniformly provided with an abutting block with an outward opening.

Preferably, the fixed blocks are provided with four groups which are distributed on the groove wall of the circular groove in an annular array shape.

Preferably, the top of the abutting block is provided with a rubber pad.

Preferably, the cavities are all in communication with the circular groove.

Preferably, the diameter of the bottom of the tapered column is smaller than the diameter of the top.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation base, fixed block, connecting block, stay cord, tapered column, gag lever post, stopper and torsional spring's cooperation realizes replacing the screw to install current transformer, avoids the wall body to suffer the damage, can avoid the screw corrosion to cause to be difficult to dismantle simultaneously, has consequently improved current transformer's practicality.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the external structure of the present invention;

FIG. 2 is a schematic view of the front view of the internal structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the circular groove of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-mounting base, 2-current transformer body, 3-fixing block, 4-connecting block, 5-cavity, 6-spring, 7-pull ring, 8-pull rope, 9-conical column, 10-limiting rod, 11-limiting block and 12-torsion spring.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a current transformer with shell fixed function, including installation base 1, the top fixed mounting of installation base 1 has current transformer body 2, both ends evenly are provided with cavity 5 about installation base 1, evenly install spring 6 in the cavity 5, and the embedding has toper post 9, the top and the 6 butt of spring of toper post 9, the equal fixed mounting in top of toper post 9 has connecting block 4, connecting block 4 is provided with stay cord 8, the top of stay cord 8 evenly runs through the top chamber wall of cavity 5, and fixed mounting has pull ring 7, the bottom at both ends evenly is provided with the circular recess about installation base 1, the even fixed mounting of cell wall of circular recess has fixed

block

3, 3 even articulations of fixed block have gag lever post 10, the outer end of gag lever post 10 evenly is provided with torsional spring 12, the equal fixed mounting in inner of gag lever post 10 has stopper 11.

Further, the bottom of gag lever post 10 evenly has the outside butt piece of opening, is favorable to with the round hole butt of installation guide rail.

Furthermore, the fixed blocks 3 are provided with four groups, and the four groups are distributed on the groove wall of the circular groove in an annular array shape, so that the stability of the mounting base 1 is improved.

Furthermore, the top of the abutting block is provided with a rubber pad, so that the friction force between the abutting block and the installation guide rail is increased, and the anti-skidding and insulating effects are achieved.

Further, cavity 5 all communicates with the circular recess, is favorable to the toper post 9 to be able to with gag lever post 10 butt.

Further, the diameter of the bottom of the conical column 9 is smaller than that of the top of the conical column, so that the conical column 9 can descend to drive the limiting rod 10 to rotate.

One specific application of this embodiment is: when the current transformer body 2 is installed, by opening the electric power cabinet, the inside of the existing electric power cabinet is provided with an installation guide rail provided with a round hole, round holes arranged at the bottoms of the left and right ends of the installation base 1 are aligned with the round groove of the installation guide rail inside the electric power cabinet, the pull ring 7 at one end of the installation base 1 is pulled upwards, the pull ring 7 is forced to pull the conical column 9 to move upwards, the limiting rod 10 takes the hinged part of the limiting rod 10 and the fixed block 3 as the circle center under the rebounding action force of the torsion spring 12 and rotates inwards at the same time, so that the bottom of the limiting rod 10 enters the round hole of the installation guide rail, the pull ring 7 is loosened, the conical column 9 drives the conical column 9 to move downwards under the retracting action force of the spring 6, the conical column 9 is abutted to the limiting block 11 at the inner end of the limiting rod 10, the limiting block 11 is forced to rotate outwards at the same time, the opening at the bottom of the limiting rod 10 is abutted to the bottom wall of the installation guide rail, the installation base 1 is fixed, so that the installation base 1 can be quickly installed and disassembled, the installation time of the current transformer body 2 is saved, and the installation efficiency of the current transformer body 2 is improved.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific situation. In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a current transformer with shell fixed function, includes installation base (1), its characterized in that: the current transformer comprises an installation base (1), wherein a current transformer body (2) is fixedly installed at the top of the installation base (1), cavities (5) are evenly arranged at the left end and the right end of the installation base (1), springs (6) are evenly installed in the cavities (5), conical columns (9) are embedded in the cavities (5), the tops of the conical columns (9) are abutted to the springs (6), connecting blocks (4) are evenly and fixedly installed at the tops of the conical columns (9), pull ropes (8) are arranged on the connecting blocks (4), the tops of the pull ropes (8) evenly penetrate through the top cavity wall of the cavities (5), pull rings (7) are fixedly installed on the tops of the conical columns (9), round grooves are evenly arranged at the bottoms of the left end and the right end of the installation base (1), fixing blocks (3) are evenly and fixedly installed on the groove walls of the round grooves, limiting rods (10) are evenly hinged to the fixing blocks (3), torsion springs (12) are evenly arranged at the outer ends of the limiting rods (10), the inner ends of the limiting rods (10) are fixedly provided with limiting blocks (11).

2. The current transformer with the shell fixing function as claimed in claim 1, wherein: and the bottom of the limiting rod (10) is uniformly provided with an abutting block with an outward opening.

3. The current transformer with the shell fixing function as claimed in claim 1, wherein: the fixed blocks (3) are provided with four groups and distributed on the groove wall of the circular groove in an annular array shape.

4. The current transformer with the shell fixing function as claimed in claim 2, wherein: the top of the abutting block is provided with a rubber pad.

5. The current transformer with the shell fixing function as claimed in claim 1, wherein: the cavities (5) are all communicated with the circular grooves.

6. The current transformer with the shell fixing function as claimed in claim 1, wherein: the diameter of the bottom of the conical column (9) is smaller than that of the top.