Isolating switch

Abstract

The utility model relates to the technical field of high-voltage isolating switches, in particular to an isolating switch, which comprises a base, two insulating columns are arranged on the base, and one ends, far away from the base, of the two insulating columns are connected through a contact blade; the base comprises a base body; a fixed mounting hole is formed in the base body; each insulating column is connected with the base body through a fastening part; the fastening part comprises a waist-shaped groove formed in the base body and a plugging column arranged at the end part of the corresponding insulating column; the insulating column is inserted into the waist-shaped groove through the insertion column; an inserting transverse block is arranged on the inserting column; according to the isolation switch disclosed by the utility model, through the arrangement of the waist-shaped grooves, the insulation columns can be adjusted in the length direction of the base, then the spacing distance between the two insulation columns can be changed according to needs, and the application range of the isolation switch disclosed by the utility model is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage isolating switches, in particular to an isolating switch. Background Art

[0002] The high-voltage isolating switch is an important switching device used in the electrical system of power plants and substations. Its main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work and to isolate the voltage. It cannot be used to cut off, input load current, and interrupt short-circuit current. It can only be used for certain switching operations that do not generate strong arcs, that is, it does not have an arc extinguishing function.

[0003] When the commonly used AC high-voltage isolating switches are in use, the distance between the supporting porcelain parts of the high-voltage isolating switches cannot be adjusted, the equipment installation method is single, and the equipment applicability is poor.

[0004] For example, the content disclosed in Patent 201220669705.9 - An improved structure of a fusible disconnector.

[0005] Therefore, in order to improve the above problems, it is necessary to optimize the design of the existing isolating switch structure. Utility Model Content

[0006] The utility model aims to provide an isolating switch structure with adjustable relative positions of insulating columns.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An isolating switch comprises a base, two insulating columns are arranged on the base, and the ends of the two insulating columns away from the base are connected through contact pieces;

[0009] The base comprises a base body; a fixing installation hole is provided on the base body;

[0010] Each of the insulating columns is connected to the base body via a fastening portion;

[0011] The fastening part includes a waist-shaped groove arranged on the base body and a plug-in column arranged at the end of the corresponding insulating column; the insulating column is plugged into the waist-shaped groove through the plug-in column; a plug-in cross block is arranged on the plug-in column; the plug-in cross block is arranged perpendicular to the plug-in column; the plug-in column is hung on the base body through the plug-in cross block;

[0012] The plug-in column is provided with a fastening nut; the fastening nut pushes the plug-in horizontal block to fit on the base body.

[0013] The base body comprises an upper end plate, and longitudinal plates are arranged on opposite sides of the upper end plate; the waist-shaped groove is arranged on the upper end plate; a mounting flange is arranged on one end of the longitudinal plate away from the upper end plate; and the mounting flange is arranged parallel to the upper end plate.

[0014] The plug-in column is provided with a strip-shaped through groove, which is arranged along the axial direction of the plug-in column; the length of the strip-shaped through groove is greater than the thickness of the plug-in cross block.

[0015] The outer side of the plug-in column is provided with an external thread.

[0016] The upper end plate is provided with a positioning groove structure, and the positioning groove structure and the longitudinal plate are distributed on the same side of the upper end plate; the positioning groove structure includes a plurality of limiting grooves, and the limiting grooves are arranged perpendicular to the waist-shaped grooves.

[0017] The vertical cross-section of the limiting groove is trapezoidal; the smaller opening end of the limiting groove is located on the side of the upper end plate close to the longitudinal plate.

[0018] The plug-in horizontal block is a quadrangular prism structure.

[0019] The advantages of the utility model are:

[0020] The utility model discloses an isolating switch. The isolating switch disclosed by the utility model can adjust the insulating column in the length direction of the base through the setting of the waist-shaped groove, and then the spacing distance between two insulating columns can be changed as needed, thereby improving the application scope of the utility model.

[0021] At the same time, the stability of the connection between the insulating column and the base is ensured by the setting of the fastening part. At the same time, by the setting of the plug-in cross block, when the disconnector is inverted, the insulating column is equivalent to being hung on the base, ensuring the stability of the insulating column placement position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a brief description of the contents expressed in each of the drawings of the utility model specification:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the insulating column in the utility model.

[0025] Figure 3 It is a side view of the insulating column of the utility model when the plug-in horizontal block is plugged in.

[0026] Figure 4 It is a top view of the base in the utility model.

[0027] Figure 5 It is a bottom view of the base in the utility model.

[0028] Figure 6 It is a cross-sectional view of the base in the utility model.

[0029] Figure 7 It is a cross-sectional view of the base and the insulating column when they are connected in the utility model. DETAILED DESCRIPTION

[0030] The specific implementation methods of the present utility model will be further explained in detail below by describing the optimal embodiments with reference to the accompanying drawings.

[0031] The specific implementation methods of the present utility model will be further explained in detail below by describing the optimal embodiments with reference to the accompanying drawings.

[0032] A disconnector, comprising a base 1, two insulating columns 2 are arranged on the base 1, and the ends of the two insulating columns 2 away from the base 1 are connected through a contact piece 3; the base 1 comprises a base body 11; a fixed mounting hole 112 is arranged on the base body 11; each insulating column 2 is connected to the base body 11 through a fastening portion; the fastening portion comprises a waist groove 13 arranged on the base body 11 and a plug-in column 21 arranged at the end of the corresponding insulating column 2; the insulating column 2 is plugged into the waist groove 13 through the plug-in column 21; a plug-in cross block 24 is arranged on the plug-in cross block 24 perpendicular to the plug-in column 21; the plug-in column 21 is hung through the plug-in cross block 24 Connected to the base body 11; a fastening nut 23 is provided on the plug-in column 21; the fastening nut 23 pushes the plug-in cross block 24 to fit on the base body 11; the utility model discloses an isolating switch, and the isolating switch disclosed by the utility model can adjust the insulating column 2 in the length direction of the base 1 through the setting of the waist-shaped groove 13, and then the spacing distance between the two insulating columns 2 can be changed as needed, thereby improving the application scope of the utility model; at the same time, through the setting of the fastening part, the stability of the connection between the insulating column 2 and the base 1 is guaranteed, and at the same time, through the setting of the plug-in cross block 24, when the isolating switch is inverted, the insulating column 2 is equivalent to being hung on the base 1, thereby ensuring the stability of the placement position of the insulating column 2.

[0033] Specifically, the isolating switch disclosed in the utility model mainly includes a base 1, and two insulating columns 2 are arranged on the base 1, and the ends of the two insulating columns 2 away from the base 1 are connected by contact pieces 3; in the utility model, the main structure of the insulating columns 2 and the contact pieces 3 is mainly the existing structure, and the specific structure is not repeated here, and the main improvement of the utility model lies in the base 1 and the connection between the base 1 and the insulating columns 2.

[0034] In addition, in the present invention, the base 1 includes a base body 11 ; the base body 11 is provided with a fixing hole 112 ; the base body 11 is the main structure of the base 1 , and the setting of the fixing hole 112 is mainly to facilitate the subsequent assembly and fixation of the base 1 .

[0035] At the same time, in the utility model, each of the insulating columns 2 is connected to the base body 11 through a fastening portion; the setting of the fastening portion facilitates the connection and assembly between the insulating column 2 and the base body 11. At the same time, in the utility model, the fastening portion includes a waist-shaped groove 13 arranged on the base body 11 and a plug-in column 21 arranged at the end of the corresponding insulating column 2; the insulating column 2 is plugged into the waist-shaped groove 13 through the plug-in column 21; the setting of the waist-shaped groove 13 is convenient for the plugging and fixing of the insulating column 2 on the base 1, and also convenient for the insulating column 2 changes its position on the base body 11; thereby, the interval between two adjacent insulating columns 2 can be adjusted; the application scope of the utility model is improved. At the same time, in the utility model, the plug-in column 21 is provided with a plug-in cross block 24; the plug-in cross block 24 is arranged perpendicular to the plug-in column 21; the plug-in column 21 is hung on the base body 11 through the plug-in cross block 24; the plug-in cross block 24 is arranged in a convex shape along the plug-in column 21, and such an arrangement plays a good limiting role, which can basically prevent the plug-in cross block 24 from being separated from the base body 11.

[0036] At the same time, in the utility model, a fastening nut 23 is provided on the plug-in column 21; the fastening nut 23 pushes the plug-in cross block 24 to fit on the base body 11; the fastening nut 23 of the utility model is sleeved on the plug-in column 21, and the fastening nut 23 is connected to the plug-in column 21 by a threaded connection. The fastening nut 23 can move axially along the plug-in column 21, and at the same time, the lateral width of the fastening nut 23 is also required to be greater than the width of the waist-shaped groove 13. Such a setting makes the fastening nut 23 also play a good connection limiting role, which basically avoids the problem of the insulating column 2 being separated from the base body 11.

[0037] Furthermore, in the utility model, the base body 11 includes an upper end plate 111, and longitudinal plates 113 are provided on the opposite sides of the upper end plate 111; the waist-shaped groove 13 is arranged on the upper end plate 111; based on such a setting, the upper end plate 111 and the two longitudinal plates 113 of the utility model form an inverted U-shaped structure, which is convenient for the subsequent arrangement of components such as the plug-in column 21 and the fastening nut 23 in the base body 11, that is, the upper end plate 111 and the longitudinal plate 113 form a groove structure, which is convenient for the installation and arrangement of various components. At the same time, in the utility model, the longitudinal plate 113 is provided with an installation flange 12 on the end away from the upper end plate 111; the installation flange 12 is arranged parallel to the upper end plate 111; the setting of the installation flange 12 greatly increases the area of ​​the end of the base body 11; and ensures the stability of the subsequent placement position of the base body 11.

[0038] Furthermore, in the utility model, a strip through groove 22 is provided on the plug-in column 21, and the strip through groove 22 is arranged axially along the plug-in column 21; the length of the strip through groove 22 is greater than the thickness of the plug-in cross block 24; based on such a setting, the plug-in cross block 24 can be moved along the plug-in column 21 to change the arrangement position of the plug-in cross block 24. At the same time, in the utility model, the length of the plug-in cross block 24 is greater than the outer diameter of the plug-in column 21, that is, in actual design, the plug-in cross block 24 is required to pass through the plug-in column 21 and protrude from the plug-in column 21. Based on such a setting, the plug-in cross block 24 protrudes from the plug-in column 21, which is equivalent to forming a hook structure, which facilitates the installation and fixation between the plug-in cross block 24 and the base body 11.

[0039] Furthermore, in the utility model, an external thread is provided on the outer side of the plug-in column 21; through such a setting, the utility model can be screwed on the plug-in column 21 during subsequent use, and the fastening nut 23 can push the plug-in cross block 24 to move in the strip-shaped through groove 22, so that the plug-in cross block 24 fits on the inner wall of the base body 11, thereby realizing the locking and fixation of the insulating column 2 on the base body 11.

[0040] Furthermore, in the utility model, a positioning groove structure is provided on the upper end plate 111, and the positioning groove structure and the longitudinal plate 113 are distributed on the same side of the upper end plate 111; the positioning groove structure includes a plurality of limiting grooves 14, and the limiting grooves 14 are arranged perpendicular to the waist-shaped grooves 13; the utility model can cooperate with the plug-in cross block 24 through the setting of the positioning groove structure, so as to avoid lateral displacement of the insulating column 2 after the position of the insulating column 2 is determined; in actual use, the plug-in cross block 24 is plugged into the corresponding limiting groove 14, so as to realize the lateral limitation of the position of the plug-in cross block 24.

[0041] Furthermore, the vertical cross-section of the limiting groove 14 in the utility model is trapezoidal; the smaller opening end of the limiting groove 14 is located on the side of the upper end plate 111 close to the longitudinal plate 113; this arrangement allows the limiting groove 14 to be interference fit with the plug-in cross block 24, so that the plug-in cross block 24 is equivalent to being embedded in the limiting groove 14, which greatly ensures the stability of the installation position of the plug-in cross block 24 in the limiting groove 14.

[0042] Meanwhile, in the present invention, the plug-in cross block 24 is a quadrangular prism structure; such a configuration avoids the limitation of the position of the plug-in cross block 24 in the strip through slot 22 and avoids the plug-in cross block 24 from rotating in the strip through slot 22 .

[0043] Obviously, the specific implementation of the present invention is not limited by the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the protection scope of the present invention.

Claims

1. An isolating switch, characterized in that: It comprises a base, the base is provided with two insulating columns, and the ends of the two insulating columns away from the base are connected through contact pieces; The base comprises a base body; a fixing installation hole is provided on the base body; Each of the insulating columns is connected to the base body via a fastening portion; The fastening part includes a waist-shaped groove arranged on the base body and a plug-in column arranged at the end of the corresponding insulating column; the insulating column is plugged into the waist-shaped groove through the plug-in column; a plug-in cross block is arranged on the plug-in column; the plug-in cross block is arranged perpendicular to the plug-in column; the plug-in column is hung on the base body through the plug-in cross block; The plug-in column is provided with a fastening nut; the fastening nut pushes the plug-in horizontal block to fit on the base body.

2. The isolating switch according to claim 1, characterized in that: The base body comprises an upper end plate, and longitudinal plates are arranged on opposite sides of the upper end plate; the waist-shaped groove is arranged on the upper end plate; a mounting flange is arranged on one end of the longitudinal plate away from the upper end plate; and the mounting flange is arranged parallel to the upper end plate.

3. The isolating switch according to claim 1, characterized in that: The plug-in column is provided with a strip-shaped through groove, which is arranged along the axial direction of the plug-in column; the length of the strip-shaped through groove is greater than the thickness of the plug-in cross block.

4. The isolating switch according to claim 1, characterized in that: The outer side of the plug-in column is provided with an external thread.

5. The isolating switch according to claim 2, characterized in that: The upper end plate is provided with a positioning groove structure, and the positioning groove structure and the longitudinal plate are distributed on the same side of the upper end plate; the positioning groove structure includes a plurality of limiting grooves, and the limiting grooves are arranged perpendicular to the waist-shaped grooves.

6. The isolating switch according to claim 5, characterized in that: The vertical cross section of the limiting groove is trapezoidal; the smaller opening end of the limiting groove is located on the side of the upper end plate close to the longitudinal plate.

7. The isolating switch according to claim 6, characterized in that: The plug-in cross block is a quadrangular column structure.

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