Open type current transformer convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of electrical equipment, in particular to an open type current transformer convenient to disassemble and assemble, which comprises a current transformer main body, a bottom plate is arranged at the bottom of the current transformer main body, openings are arranged on two sides of the front end of the bottom of the bottom plate, and a transverse shaft is arranged in the opening of the bottom plate. The device comprises a transverse shaft, the transverse shaft is sleeved with a pushing sleeve, a mounting block is arranged at the bottom of the pushing sleeve, rectangular clamping pieces are symmetrically arranged on the front side of the mounting block, an arc-shaped clamping piece is arranged on the rear side of the mounting block, and the two sides of the mounting block are rotationally connected with clamping pieces connected with the transverse shaft in a clamped mode. According to the open type current transformer convenient to disassemble and assemble, the overall disassembly and assembly are quicker and more labor-saving, the convenience of field operation is improved, and the maintenance and repair work of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an open-type current transformer which is easy to disassemble and assemble. Background Art

[0002] Current transformer is an instrument that converts large primary current into small secondary current based on the principle of electromagnetic induction. Open-type current transformer is a special type of current transformer, which is designed to allow installation or removal without disconnecting the power line. This type of transformer is particularly suitable for existing power systems that are inconvenient to shut down or require frequent inspection.

[0003] The Chinese patent with the announcement number CN219303436U discloses an open-type current transformer, which is mainly composed of a base, a pressing block, a locking plate, a bottom plate and other components. The pressing block is rotated by passing the two wires to be detected through the lower groove, so that the two limit grooves clamp and position the two wires respectively. As the pressing plate rotates, the locking plate and the movable clamping block are clamped and fixed. When it is necessary to open, it is only necessary to press the movable clamping block, and the locking block can be unfixed by pushing the movable clamping block into the inner groove through the force of the extrusion spring. The operation is faster and more convenient when opening and closing, which solves the problem that the traditional open-type current transformer is generally fixed by screws when locked and fixed, which makes it more cumbersome when opening and closing. However, the base in the above technical solution still needs to be fixed by the mounting screw holes on the bottom plate with screws, which makes the overall installation of the open-type current transformer very cumbersome, inconvenient for quick disassembly and assembly, and thus not conducive to equipment maintenance and repair work. Utility Model Content

[0004] The utility model aims to provide an open-type current transformer that is easy to disassemble and assemble, so as to solve the problem that the base of the current open-type current transformer still needs to be fixed with screws, which makes it inconvenient to disassemble and assemble the entire device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an open-type current transformer that is easy to disassemble and assemble, comprising a current transformer body, a bottom plate is provided at the bottom of the current transformer body, openings are provided on both sides of the bottom front end of the bottom plate, a transverse axis is provided in the opening of the bottom plate, a push sleeve is provided on the outside of the transverse axis, a mounting block is provided at the bottom of the push sleeve, rectangular clamping pieces are symmetrically provided on the front side of the mounting block, an arc-shaped clamping piece is provided on the rear side of the mounting block, and both sides of the mounting block are rotatably connected with clamping pieces that are mutually clamped with the transverse axis.

[0006] Preferably, a vertical axis is symmetrically provided on a surface of the mounting block corresponding to the rectangular clamping piece, and both ends of the rectangular clamping piece are slidably sleeved on the outside of the vertical axis.

[0007] Preferably, tension springs are sleeved on both upper and lower ends of the vertical shaft, and both ends of the tension spring are respectively connected to the inner side of the end of the vertical shaft and the outer side of the end of the rectangular clamp.

[0008] Preferably, a card interface that matches the horizontal axis structure is provided at the top of the card connector, and a magnet sheet is bonded and fixed to the inner wall of the card interface at the top of the card connector.

[0009] Preferably, a damping ring is provided on the inner wall of the pushing sleeve, and the pushing sleeve is arranged on the outside of the horizontal axis through the damping ring.

[0010] Preferably, the outer side of the arc-shaped clamping member is an open structure, and the inner side of the arc-shaped clamping member is welded and fixed to the outer wall of the mounting block.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the open-type current transformer that is easy to disassemble and assemble can make the overall disassembly and assembly faster and more labor-saving, improve the convenience of on-site operation, and facilitate the maintenance and repair of the equipment. The open-type current transformer that is easy to disassemble and assemble is provided with two mounting blocks at the bottom of the bottom plate, and the mounting blocks can be moved laterally by pushing the sleeve and the horizontal axis, and the rectangular clamping piece provided on the front side of the mounting block can be used to clamp on the mounting body of the rectangular structure for installation, and the arc-shaped clamping piece provided on the rear side can be used to clamp on the mounting body of the rod structure for installation, so that the main assembly of the current transformer is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of an open-type current transformer that is easy to disassemble and assemble according to the utility model;

[0013] Figure 2 This is a schematic diagram of the front side structure of a mounting block of an open-type current transformer that is easy to disassemble and assemble according to the utility model;

[0014] Figure 3 This is a schematic diagram of the rear structure of a mounting block of an open-type current transformer that is easy to disassemble and assemble according to the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the side structure of a mounting block of an open-type current transformer that is easy to disassemble and assemble.

[0016] In the figure: 1. Current transformer body; 2. Bottom plate; 3. Horizontal axis; 4. Push sleeve; 5. Mounting block; 6. Rectangular clamping piece; 7. Snap-on piece; 8. Vertical axis; 9. Tensioning spring; 10. Arc-shaped clamping piece; 11. Magnet sheet. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4The utility model provides a technical solution: an open-type current transformer that is easy to disassemble and assemble, comprising a current transformer body 1, the current transformer body 1 is composed of a base and a pressing block hinged to each other, a bottom plate 2 is welded and fixed to the bottom of the current transformer body 1, both sides of the bottom front end of the bottom of the bottom plate 2 are provided with openings, a transverse axis 3 is provided in the opening of the bottom plate 2, and both ends of the transverse axis 3 are welded and fixed to the inner walls of the opening on both sides of the bottom of the bottom plate 2, a push sleeve 4 is provided on the outside of the transverse axis 3, and the bottom of the push sleeve 4 is rotatably connected to a mounting block 5 through a bearing, the front side of the mounting block 5 is symmetrically provided with rectangular clamping pieces 6 distributed up and down, the rear side of the mounting block 5 is provided with an arc-shaped clamping piece 10, and both sides of the mounting block 5 are rotatably connected with clamping pieces 7 that are mutually clamped with the transverse axis 3, and the bottom end of the mounting block 5 The inner side is connected to the side wall of the mounting block 5 through a rotating shaft. When the current transformer body 1 of this structure is assembled on the mounting body through the base plate 2, the mounting block 5 can be displaced to a suitable mounting position at the bottom of the base plate 2 by sliding the push sleeve 4 on the outside of the transverse axis 3, and the mounting block 5 can be rotated according to the specification characteristics of the mounting body to select the rectangular clamping piece 6 or the arc clamping piece 10 for installation. The rectangular clamping piece 6 can be used to clamp on the mounting body of the rectangular structure for installation, and the arc clamping piece 10 can be used to clamp on the mounting body of the rod structure for installation, thereby realizing the function of fast assembly of the current transformer body 1 as a whole, avoiding the problem that the current transformer body 1 is assembled in a traditional way of matching bolts and screw holes, resulting in a cumbersome disassembly process, thereby making the current transformer body 1 The overall disassembly and assembly of the transformer body 1 is more convenient and quick, which is conducive to the maintenance and repair of the equipment, with higher efficiency and better flexibility. The vertical axis 8 is symmetrically arranged on the side corresponding to the mounting block 5 and the rectangular clamping piece 6. The upper and lower ends of the vertical axis 8 are welded and fixed to the outer wall of the mounting block 5, and the two ends of the rectangular clamping piece 6 are slidably sleeved on the outside of the vertical axis 8. The upper and lower ends of the vertical axis 8 are sleeved with tensioning springs 9, and the two ends of the tensioning spring 9 are respectively connected to the inner side of the end of the vertical axis 8 and the outer side of the end of the rectangular clamping piece 6. The two rectangular clamping pieces 6 of this structure can be squeezed on the edge of the rectangular structure mounting body through the gap between them. After the rectangular clamping piece 6 is subjected to force, the two ends can slide on the outside of the vertical axis 8 and cause the tensioning spring 9 to generate a force, which enables the rectangular clamping piece 6 to be able to The clamping member 7 is contracted and clamped to the edge of the rectangular structure installation body under the elastic force of the tensioning spring 9 to achieve the effect of quick and stable assembly. The top of the clamping member 7 is provided with a clamping interface that matches the structure of the horizontal axis 3, and a magnet sheet 11 is fixed to the inner wall of the clamping interface at the top of the clamping member 7 by gluing. The clamping member 7 of this structure can be fastened to the outside of the corresponding position of the horizontal axis 3 by clamping the top clamping interface and fixed by adsorption of the magnet sheet 11, thereby playing a role of quickly limiting the displaced installation block 5 and ensuring the stability of the installation block 5 in conjunction with the installation body. A damping ring is glued and fixed to the inner wall of the push sleeve 4, and the push sleeve 4 is arranged on the outside of the horizontal axis 3 through the damping ring. The damping ring on the inner wall of the push sleeve 4 of this structure can increase the friction when in contact with the horizontal axis 3.To further improve the stability of the mounting block 5 after displacement, the arc-shaped clamping member 10 is made of an existing elastic metal material, the outer side of the arc-shaped clamping member 10 is an open structure, and the inner side of the arc-shaped clamping member 10 is welded and fixed to the outer wall of the mounting block 5. The arc-shaped clamping member 10 of this structure can be clamped on the mounting body of the rod structure by its own elastic force.

[0019] Working principle: When using the open-type current transformer that is easy to disassemble and assemble, first, when the current transformer body 1 needs to be assembled on the installation body through the base plate 2, first slide the two installation blocks 5 outside the horizontal axis 3 through the push sleeve 4 to move to a suitable installation position at the bottom of the base plate 2, and then rotate the installation block 5 according to the specification characteristics of the installation body to select the rectangular clamp 6 or the arc clamp 10 for installation. When the installation body is a rectangular structure, the rectangular clamp 6 is facing the rear side of the bottom of the base plate 2, and the two rectangular clamps 6 are squeezed on the edge of the rectangular structure installation body through the gap between them. After the rectangular clamp 6 is subjected to force, the two ends can slide outside the vertical axis 8 and cause the tension spring 9 to produce an action. Apply force, and the rectangular clamping piece 6 will shrink and clamp and fix on the edge of the rectangular structure installation body under the elastic force of the tensioning spring 9. If the installation body is a rod structure, the arc clamping piece 10 is facing the rear side of the bottom of the base plate 2. The arc clamping piece 10 can be clamped on the installation body of the rod structure through the opening to achieve the effect of rapid assembly of the current transformer main body 1. At the same time, after the mounting block 5 is rotated, the clamping piece 7 can also be rotated on both sides. The clamping piece 7 can be fixed by clamping the top card interface on the outside of the corresponding position of the horizontal axis 3 and adsorbing and fixing it with the magnet sheet 11, so as to quickly limit the displaced mounting block 5 and ensure the stability of the mounting block 5, thereby completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An open-type current transformer that is easy to disassemble and assemble, comprising a current transformer body (1), wherein a bottom plate (2) is provided at the bottom of the current transformer body (1), and characterized in that: Both sides of the front end of the bottom of the base plate (2) are provided with openings, a transverse axis (3) is provided in the opening of the base plate (2), a push sleeve (4) is sleeved on the outside of the transverse axis (3), a mounting block (5) is provided at the bottom of the push sleeve (4), a rectangular clamping piece (6) is symmetrically provided on the front side of the mounting block (5), an arc-shaped clamping piece (10) is provided on the rear side of the mounting block (5), and both sides of the mounting block (5) are rotatably connected with a clamping piece (7) that is mutually clamped with the transverse axis (3).

2. The open-type current transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: A vertical axis (8) is symmetrically provided on a surface of the mounting block (5) corresponding to the rectangular clamping piece (6), and both ends of the rectangular clamping piece (6) are slidably sleeved outside the vertical axis (8).

3. The open-type current transformer that is easy to disassemble and assemble according to claim 2 is characterized in that: The upper and lower ends of the vertical shaft (8) are sleeved with tension springs (9), and the two ends of the tension spring (9) are respectively connected to the inner side of the end of the vertical shaft (8) and the outer side of the end of the rectangular clamping member (6).

4. The open-type current transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: The top end of the clamping member (7) is provided with a clamping interface that matches the structure of the horizontal axis (3), and a magnet sheet (11) is bonded and fixed to the inner wall of the clamping interface at the top end of the clamping member (7).

5. The open-type current transformer that is easy to disassemble and assemble according to claim 1 is characterized in that: A damping ring is provided on the inner wall of the push sleeve (4), and the push sleeve (4) is arranged outside the horizontal shaft (3) through the damping ring.

6. The open-type current transformer that is easy to assemble and disassemble according to claim 1, characterized in that: The outer side of the arc-shaped clamping piece (10) is an open structure, and the inner side of the arc-shaped clamping piece (10) is welded and fixed to the outer wall of the mounting block (5).

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