Current transformer with dustproof effect

Abstract

The utility model provides a current transformer with a dustproof effect, which relates to the technical field of current transformers, and comprises a current transformer body and a line through hole arranged at the top of the current transformer body, a sealing assembly is arranged at the top of the line through hole, and the sealing assembly comprises a protective shell arranged at the top of the current transformer body. The bottom of the protective shell is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a flexible sealing piece, a sealing plate is arranged on the side face of the flexible sealing piece, and a supporting plate is arranged at the bottom of the sealing plate. A rotary knob is manually twisted clockwise, so that a supporting plate can be driven to move anticlockwise through a gear, when the supporting plate moves anticlockwise, a sealing plate arranged at the top of the supporting plate can be promoted to move towards the middle of a protective shell, and then the sealing plate can be promoted to be attached to the outer surfaces of circuits of different sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to current transformer technical field especially relates to a current transformer with dustproof effect. BACKGROUND

[0002] Current transformer is often used in power system, and the main role is to transform the primary side large current into the secondary side small current in proportion, so as to measure, measure and protect, it can make measuring instrument, relay etc. with high voltage, large current loop isolation, guarantee equipment and personnel safety, can also expand instrument range, improve measurement accuracy and system reliability.

[0003] In actual work, the current transformer of prior art can meet the basic demand of measurement by cooperating with measuring instrument and electric energy metering device, but the following problems still exist:

[0004] The current transformer in prior art is usually installed at the equipment and line connection, due to the difference of equipment power and operation characteristics, the diameter of the connected line is different, thereby causing a certain gap at the connection of line and current transformer, which inevitably causes dust to continuously accumulate in the gap during use, affecting the normal use of current transformer, therefore, the current transformer with dustproof effect is provided to meet the demand. UTILITY MODEL CONTENTS

[0005] The utility model discloses a current transformer with dustproof effect, which solves the problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a current transformer with dustproof effect, comprising a current transformer body and a line through hole opened at the top of the current transformer body;

[0007] A sealing assembly is arranged at the top of the line through hole, which comprises a protective shell mounted on the top of the current transformer body, a connecting plate fixedly connected to the bottom of the protective shell, a flexible sealing element fixedly connected to the bottom of the connecting plate, a sealing plate arranged on the side surface of the flexible sealing element, a support plate arranged at the bottom of the sealing plate, and a fixed seat rotatably connected to the inner wall of the support plate.

[0008] A driving assembly is arranged on the side surface of the support plate, which comprises a knob arranged on the top of the support plate, and a clamping plate rotatably connected to the top of the knob.

[0009] Further, one end of the sealing plate is fixedly connected with a first support rod, the bottom of the first support rod is rotatably connected with a connecting rod, and the end of the connecting rod away from the first support rod is fixedly connected with a second support rod.

[0010] The technical effects of the above technical scheme are that the second support rod, the connecting rod and the first support rod cooperate to facilitate the sealing plate to seal and fix the circuit.

[0011] Further, the bottom of the second support rod is rotationally connected to the top of the support plate, and the end of the sealing plate away from the first support rod is fixedly connected with a third support rod.

[0012] The technical effects of the above technical scheme are that the third support rod is arranged to limit the movement track of the connecting rod.

[0013] Further, the side surface of the sealing plate is fixedly connected with a groove, the side of the flexible sealing member close to the protrusion is provided with a protrusion, one end of the groove extends to the inner cavity of the protrusion, and the one end of the groove is slidingly connected with the inner cavity of the protrusion.

[0014] The technical effects of the above technical scheme are that the groove and the protrusion cooperate to provide sealing for the connection between the circuit through hole and the circuit.

[0015] Compared with the prior art, the advantages and positive effects of the current transformer with the dustproof effect are that:

[0016] The circuit through hole arranged at the top of the current transformer body guides the circuit, and after the circuit is connected, the knob is manually twisted clockwise to drive the support plate to move counterclockwise through the gear, when the support plate moves counterclockwise, the sealing plate arranged at the top of the support plate moves to the middle of the protective shell, and the sealing plate is effectively attached to the outer surface of the circuit with different sizes, thereby improving the sealing performance of the connection between the circuit and the circuit through hole and avoiding dust accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a kind of three-dimensional structure schematic diagram of current transformer with dustproof effect provided by the utility model;

[0018] Figure 2 The utility model provides a kind of internal section structure schematic diagram of current transformer with dustproof effect provided by the utility model;

[0019] Figure 3 The utility model provides a kind of connection structure schematic diagram of current transformer sealing assembly with dustproof effect provided by the utility model;

[0020] Figure 4 The utility model provides a kind of section structure schematic diagram of current transformer sealing assembly with dustproof effect provided by the utility model;

[0021] Figure 5The utility model provides a kind of sectional view structure schematic diagram of current transformer drive assembly with dustproof effect.

[0022] Legend:

[0023] 1, current transformer body;11, line through hole;

[0024] 2, sealing assembly;21, protective shell;22, connecting plate;23, flexible sealing element;24, sealing plate;25, first support rod;26, support plate;27, fixed seat;28, second support rod;29, connecting rod;210, third support rod;211, recess;212, gasket;213, lug;

[0025] 3, drive assembly;31, knob;32, clamping plate;33, mounting seat;34, gear;35, clamping piece. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] As Figure 1 - Figure 5 The embodiment provides a technical scheme: a current transformer with dustproof effect, current transformer body 1 and line through hole 11 opened in the top of current transformer body 1;

[0028] Sealing assembly 2 is placed in the top of line through hole 11, and sealing assembly 2 includes protective shell 21 installed in the top of current transformer body 1, the bottom of protective shell 21 is fixedly connected with connecting plate 22, the bottom of connecting plate 22 is fixedly connected with flexible sealing element 23, the side of flexible sealing element 23 is provided with sealing plate 24, the bottom of sealing plate 24 is provided with support plate 26, and the inner wall of support plate 26 is rotatably connected with fixed seat 27.

[0029] The driving assembly 3 is arranged on the side of the supporting plate 26, the driving assembly 3 comprises a knob 31 arranged on the top of the supporting plate 26, the top of the knob 31 is rotationally connected with a clamping plate 32, one end of the sealing plate 24 is fixedly connected with a first supporting rod 25, the bottom of the first supporting rod 25 is rotationally connected with a connecting rod 29, the end of the connecting rod 29 away from the first supporting rod 25 is fixedly connected with a second supporting rod 28, the bottom of the second supporting rod 28 is rotationally connected with the top of the supporting plate 26, one end of the sealing plate 24 away from the first supporting rod 25 is fixedly connected with a third supporting rod 210, the side of the sealing plate 24 is fixedly connected with a groove 211, the side of the flexible sealing element 23 close to the protrusion 213 is provided with the protrusion 213, one end of the groove 211 extends to the inner cavity of the protrusion 213, and one end of the groove 211 is in sliding connection with the inner cavity of the protrusion 213. Through the line through hole 11 arranged on the top of the current transformer body 1, the line can be guided. First, the worker manually rotates the knob 31 counterclockwise, so that the supporting plate 26 can be driven to move clockwise through the gear 34, when the supporting plate 26 moves clockwise, the connecting rod 29 and the first supporting rod 25 can be driven to move clockwise through the second supporting rod 28, so that the end of the sealing plate 24 away from the first supporting rod 25 can be promoted to turn clockwise along the third supporting rod 210, thereby achieving the effect of driving the sealing plate 24 to move to the outside of the connecting plate 22. At this time, the line is placed in the inner cavity of the line through hole 11 to complete the connection, and then the knob 31 is rotated clockwise, so that the supporting plate 26 can be driven to move counterclockwise through the gear 34, thereby achieving the effect of driving the sealing plate 24 to shrink to the middle of the connecting plate 22. When the sealing plate 24 moves to a certain position, the side of the sealing plate 24 contacts the outer surface of the line, and finally the sealing and fixing of the line are completed. Through the cooperation of the sealing plate 24 and the flexible sealing element 23, the sealing performance of the connection between the line through hole 11 and the line can be effectively improved, and the accumulation of dust can be avoided. By leaving a certain size error between the groove 211 and the protrusion 213, the sealing plate 24 can assist in sealing lines of different sizes, effectively improving the adaptability of the sealing plate 24.

[0030] Further, as shown in Figure 2 Figure 5 The top of the current transformer body 1 is also fixedly connected with a mounting seat 33, the bottom of the clamping plate 32 is fixedly connected with a clamping element 35, the bottom of the knob 31 is fixedly connected with a gear 34, and the gear 34 and the supporting plate 26 are provided with interlocking toothing, so that the gear 34 and the supporting plate 26 can be driven to move by manually rotating the knob 31. After completing the connection and sealing of the line, the clamping plate 32 is rotated to the top of the mounting seat 33, and then the clamping plate 32 is pressed downward, so that the clamping element 35 can enter the inner cavity of the mounting seat 33, thereby completing clamping and avoiding the position of the knob 31 from deviating during use.​

[0031] In use, the situation of debugging line may occur, in the debugging process, the line is pulled, causing the dust on the surface of the protective shell 21 to enter the inner cavity of the protective shell 21, such as Figure 4 As shown: In this scheme, the inner wall of the support plate 26 is provided with a gasket 212, by opening a guide groove on the side of the gasket 212, so that the dust entering the inner cavity of the protective shell 21 can be intercepted when debugging the line, so as to provide secondary sealing protection for the connection between the line and the line through hole 11.

[0032] The above is only the preferred embodiment of the present application, not other forms of the present application, any skilled in the art may use the above disclosed technical content to change or modify as equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A current transformer having a dustproof effect, characterized by comprising: Include: Current transformer body (1) and line through hole (11) opened in the top of current transformer body (1); Sealing assembly (2), the sealing assembly (2) is placed in the top of line through hole (11), the sealing assembly (2) includes protective shell (21) installed in the top of current transformer body (1), the bottom of protective shell (21) is fixedly connected with connecting plate (22), the bottom of connecting plate (22) is fixedly connected with flexible sealing element (23), the side of flexible sealing element (23) is provided with sealing plate (24), the bottom of sealing plate (24) is provided with support plate (26), the inner wall of support plate (26) is rotatably connected with fixing seat (27); Driving assembly (3), the driving assembly (3) is placed in the side of support plate (26), the driving assembly (3) includes knob (31) arranged in the top of support plate (26), the top of knob (31) is rotatably connected with clamping plate (32).

2. The current transformer with dustproof effect according to claim 1, characterized in that, One end of the sealing plate (24) is fixedly connected with the first support rod (25), the bottom of the first support rod (25) is rotatably connected with the connecting rod (29), the end of the connecting rod (29) away from the first support rod (25) is fixedly connected with the second support rod (28).

3. The current transformer with dustproof effect according to claim 2, characterized in that, The bottom of the second support rod (28) is rotatably connected with the top of the support plate (26), and the end of the sealing plate (24) away from the first support rod (25) is fixedly connected with the third support rod (210).

4. The current transformer with dustproof effect according to claim 1, characterized in that, The side of the sealing plate (24) is fixedly connected with the groove (211), the side of the flexible sealing element (23) close to the lug (213) is provided with the lug (213), one end of the groove (211) extends to the inner cavity of the lug (213), and one end of the groove (211) is slidably connected with the inner cavity of the lug (213).

5. The current transformer with dustproof effect according to claim 1, characterized in that, The inner wall of the support plate (26) is provided with a gasket (212).

6. The current transformer with dustproof effect according to claim 1, characterized in that, The top of the current transformer body (1) is also fixedly connected with the mounting seat (33), and the bottom of the clamping plate (32) is fixedly connected with the clamping element (35).

7. The current transformer with dustproof effect according to claim 1, characterized in that, The bottom of the knob (31) is fixedly connected with the gear (34).

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