CN211529780U - High-precision current transformer for protection - Google Patents

Abstract

The utility model discloses a high accuracy current transformer is used in protection, including mutual-inductor main part, extension board and electric wire, the left and right sides of mutual-inductor main part bottom all is fixed with the connecting plate, and is two sets of the connecting plate is through first slider and extension board sliding connection, the inside of connecting plate is provided with the fixture block, and the inner wall sliding connection of second slider and connecting plate is all passed through at both ends around the fixture block, the upper and lower both ends that extension board one side was kept away from to the fixture block all are fixed with the fixed plate, and are two sets of be provided with torsion spring between the fixed plate, torsion spring's one end is fixed at the outer wall of fixture block, torsion spring's the other end is fixed with the rotation clamp, the left and. The utility model discloses a block that the extension board was realized to the fixture block is connected with the block of mutual-inductor, easy operation, stable in structure, and need not carry out the buffering operation to excessive the buckling of electric wire simultaneously with the help of external instrument, has improved the security and the practicality of device.

Description

High-precision current transformer for protection

Technical Field

The utility model relates to a current transformer technical field specifically is high accuracy current transformer for protection.

Background

Current transformer ubiquitous current transformation and electrical isolation effect, for the convenience of operating personnel uses, current transformer has multiple functions, and current transformer satisfies people's practical demand basically, still has following problem.

Problem 1: the traditional device generally carries out threaded connection with current transformer and extension board through the bolt, but uses the back for a long time, and the bolt very easily becomes flexible gradually because of the machine vibration, and bolted connection need install with the help of external instrument, complex operation, and the bolt is comparatively tiny moreover, if take place to drop then inconvenient the searching to difficult installation has reduced the convenience and the practicality of device.

Problem 2: the tradition is connected through electric wire and current transformer electricity, but when the device shell loads the back, the electric wire very easily takes place to buckle this moment, if excessively buckles for a long time, easily causes the electric wire crust to take place to warp to make inside metal electric wire expose, consequently there is certain potential safety hazard, has reduced the security and the practicality of device, therefore urgently needed a protection and has solved above-mentioned problem with high accuracy current transformer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy current transformer is used in protection to solve the traditional bolt fixing device that proposes in the above-mentioned background art comparatively loaded down with trivial details and unstable, the damaged problem of crust easily takes place after the electric wire of traditional device is excessively buckled for a long time simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision current transformer for protection comprises a transformer main body, support plates and electric wires, wherein connecting plates are fixed on the left side and the right side of the bottom end of the transformer main body, the two groups of connecting plates are connected with the support plates in a sliding mode through first sliding blocks, clamping blocks are arranged inside the connecting plates, the front end and the rear end of the clamping block are connected with the inner wall of the connecting plate in a sliding way through a second sliding block, the upper end and the lower end of one side of the clamping block, which is far away from the support plate, are both fixed with fixing plates, a torsion spring is arranged between the two groups of fixing plates, one end of the torsion spring is fixed on the outer wall of the clamping block, the other end of the torsion spring is fixed with the rotating clamp, the left side and the right side of the front end of the transformer main body are both provided with electric wires, and the outer wall of the transformer main body outside the electric wire is fixed with a fixed seat, the top end of the fixed seat is glued with a rubber plate, and the rubber plate is connected through the rubber tape, one side that the rubber plate is close to the electric wire is connected with the limiting plate through compression spring.

Preferably, the left side and the right side of the lower end in the support plate are provided with first slide ways matched with the first slide blocks.

Preferably, the front end and the rear end in the connecting plate are provided with second slide ways matched with the second slide blocks.

Preferably, the inside of connecting plate is provided with the fluting of mutually supporting with the fixture block, and the connecting plate at both ends all is provided with the opening of mutually supporting with the rotation clamp about the fluting inside, the inside upper and lower both ends of fixture block all are provided with the draw-in groove of mutually supporting with the rotation clamp, the inside left and right sides of extension board all is provided with the spacing groove of mutually supporting with the fixture block.

Preferably, the outer wall of the clamping block close to one side of the supporting plate is glued with a rubber gasket, and the diameter of one end, close to the supporting plate, of the rubber gasket is smaller than the diameter of one end, far away from the supporting plate, of the rubber gasket.

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

1. when the mutual inductor body needs to be fixed, the first sliding block firstly enters the inside of the first slideway, then two groups of rotating clamps pinch towards the direction of the clamping block, the clamping block is pushed towards the direction of the supporting plate until the rubber gasket is clamped into the groove inside the connecting plate, the pinching of the rotating clamps is released, one end of the rotating clamps is pushed to be clamped into the clamping groove inside the clamping block under the matching of the torsion spring, the limiting operation of the clamping block is realized, one end of the clamping block is clamped into the limiting groove inside the supporting plate at the moment, so that the fixed connection operation of the supporting plate and the connecting plate is realized, the operation is simple, the bolt connection is not required to be realized by an external tool, and therefore, the mutual inductor cannot vibrate for a long time, the connection is not flexible, and the convenience and the practicability of the device are improved.

2. This high accuracy current transformer is used in protection is provided with the electric wire, the rubber tape, compression spring and limiting plate, when the electric wire was excessively buckled, the electric wire sticiss the limiting plate, compression spring is the compression and holds the power state this moment, excessively buckle the buffering to the excessive of electric wire through the limiting plate, the dynamics of buckling when the electric wire is too big, elastic deformation takes place for two sets of rubber tapes adjacent with the electric wire this moment, the buffering operation once more that the electric wire was buckled is realized to the pulling through the rubber tape, the buffering operation of excessively buckling to the electric wire is realized through the promotion of compression spring and the pulling of rubber tape, thereby make the electric wire not take place the damaged condition of crust because of excessively buckling, thereby the potential safety hazard has been reduced, the security and the practicality.

Drawings

Fig. 1 is a schematic structural front sectional view in a first state of the present invention;

fig. 2 is a schematic structural front sectional view in a second state of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is a schematic sectional view of a partial structure of the moving-out state supporting plate, the first slider, the clamping block, the second slider, the fixing plate, the torsion spring, the rotating clamp and the rubber gasket of the present invention;

fig. 5 is an enlarged schematic structural view of the utility model at B in fig. 2;

fig. 6 is the utility model discloses the local structure of electric wire, rubber slab, rubber tape and limiting plate is looked down the sketch.

In the figure: 1. a transformer body; 2. a connecting plate; 3. a support plate; 4. a first slider; 5. a clamping block; 6. a second slider; 7. a fixing plate; 8. a torsion spring; 9. rotating the clamp; 10. a rubber gasket; 11. an electric wire; 12. a fixed seat; 13. a rubber plate; 14. a rubber belt; 15. a compression spring; 16. and a limiting plate.

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. 1-6, the present invention provides an embodiment:

a high-precision current transformer for protection comprises a transformer main body 1, support plates 3 and electric wires 11, wherein connecting plates 2 are fixed on the left side and the right side of the bottom end of the transformer main body 1, two groups of connecting plates 2 are connected with the support plates 3 in a sliding mode through first sliders 4, first slide ways matched with the first sliders 4 are arranged on the left side and the right side of the lower end inside the support plates 3, through the design, the connecting plates 2 can only move up and down, so that the transformer main body 1 cannot shake left and right, the stability of the device is improved, clamping blocks 5 are arranged inside the connecting plates 2, the front ends and the rear ends of the clamping blocks 5 are connected with the inner walls of the connecting plates 2 in a sliding mode through second sliders 6, second slide ways matched with the second sliders 6 are arranged at the front ends and the rear ends inside the connecting plates 2, and through the design, the clamping blocks 5 are subjected to limiting, make fixture block 5's removal more smooth and easy simultaneously, improved the convenience of device.

The upper and lower both ends that support plate 3 one side was kept away from to fixture block 5 all are fixed with fixed plate 7, be provided with torque spring 8 between two sets of fixed plates 7, the outer wall at fixture block 5 is fixed to torque spring 8's one end, torque spring 8's the other end is fixed with rotation clamp 9, the inside of connecting plate 2 is provided with the fluting of mutually supporting with fixture block 5, and 2 insides of connecting plate at both ends all are provided with the opening of mutually supporting with rotation clamp 9 about the fluting, the inside upper and lower both ends of fixture block 5 all are provided with the draw-in groove of mutually supporting with rotation clamp 9, the inside left and right sides of support plate 3 all is provided with the spacing groove of mutually supporting with fixture block 5, through this design, make fixture block 5 more firm to the block operation of support plate.

The outer wall glue that fixture block 5 is close to 3 one sides of extension board has rubber gasket 10, and the diameter that rubber gasket 10 is close to 3 one ends of extension board is less than the diameter that rubber gasket 10 kept away from 3 one ends of extension board, through this design, carry out the block filling operation to fixture block 5 and the gap of opening the fluting, thereby make fixture block 5's fixed more firm, the stability of device has been improved, the left and right sides of 1 front end of mutual-inductor main part all is provided with electric wire 11, and the 1 outer wall of the outside mutual-inductor main part of electric wire 11 is fixed with fixing base 12, the top of fixing base 12 all is glued and has rubber slab 13, and rubber slab 13 passes through rubber tape 14 to be connected, one side that rubber slab 13 is close to electric wire 11 is connected with limiting plate 16 through compression spring 15, rubber slab 13 and limiting plate.

The working principle is as follows: when the mutual inductor body 1 needs to be fixed, firstly, the support plate 3 is inserted between the two groups of connecting plates 2, then the first slide block 4 enters the inside of the first slideway, then the mutual inductor body 1 is pushed until the mutual inductor body 1 moves to a required position, then the two groups of rotating clamps 9 are pinched towards the direction of the clamping block 5, at the moment, the torsion spring 8 is in a compressed force storage state, then the clamping block 5 is pushed towards the support plate 3 until the rubber gasket 10 is clamped into the groove inside the connecting plates 2 after elastic deformation, at the moment, the pinching of the rotating clamps 9 is released, under the coordination of the torsion spring 8, one end of the rotating clamp 9 is pushed to be clamped into the clamping groove in the clamping block 5, the limiting operation of the clamping block 5 is realized, and at the moment, one end of the clamping block 5 is clamped into the limiting groove in the support plate 3, so that the fixed connection operation of the support plate 3 and the connecting plate 2 is realized.

When the electric wire 11 excessively buckles, the electric wire 11 sticiss limiting plate 16, and compression spring 15 is the compression power state of holding this moment, cushions excessive bending of electric wire 11 through limiting plate 16, and too big when the electric wire 11 dynamics of buckling, two sets of rubber tape 14 adjacent with electric wire 11 take place elastic deformation this moment, and the pulling through rubber tape 14 realizes the buffering operation once more that electric wire 11 buckles, operates this end.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. High accuracy current transformer is used in protection, including mutual-inductor main part (1), extension board (3) and electric wire (11), its characterized in that: the transformer comprises a transformer body (1), wherein connecting plates (2) are fixed on the left side and the right side of the bottom end of the transformer body (1), the two groups of connecting plates (2) are connected with a support plate (3) in a sliding mode through first sliders (4), clamping blocks (5) are arranged inside the connecting plates (2), the front ends and the rear ends of the clamping blocks (5) are connected with the inner wall of the connecting plates (2) in a sliding mode through second sliders (6), fixing plates (7) are fixed at the upper end and the lower end of one side, far away from the support plate (3), of each clamping block (5), a torsion spring (8) is arranged between the two groups of fixing plates (7), one end of each torsion spring (8) is fixed on the outer wall of each clamping block (5), the other end of each torsion spring (8) is fixed with a rotating clamp (9), electric wires (11) are arranged on the left side and the right side of the front end of the transformer body, the top of fixing base (12) all is glued rubber slab (13), and rubber slab (13) pass through rubber tape (14) and connect, one side that rubber slab (13) are close to electric wire (11) is connected with limiting plate (16) through compression spring (15).

2. The high-precision current transformer for protection according to claim 1, characterized in that: the left side and the right side of the lower end in the support plate (3) are provided with first slide ways matched with the first slide block (4).

3. The high-precision current transformer for protection according to claim 1, characterized in that: and the front end and the rear end inside the connecting plate (2) are provided with second slide ways matched with the second slide blocks (6).

4. The high-precision current transformer for protection according to claim 1, characterized in that: the inside of connecting plate (2) is provided with the fluting of mutually supporting with fixture block (5), and connecting plate (2) at both ends all is provided with and rotates the opening of pressing from both sides (9) and mutually supporting about the fluting, the inside upper and lower both ends of fixture block (5) all are provided with and rotate the draw-in groove of pressing from both sides (9) and mutually support, the inside left and right sides of extension board (3) all is provided with the spacing groove of mutually supporting with fixture block (5).

5. The high-precision current transformer for protection according to claim 1, characterized in that: the rubber gasket (10) is glued on the outer wall of one side, close to the support plate (3), of the fixture block (5), and the diameter of one end, close to the support plate (3), of the rubber gasket (10) is smaller than the diameter of one end, far away from the support plate (3), of the rubber gasket (10).

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