Post insulator

Abstract

The utility model belongs to the technical field of insulators, and particularly relates to a post insulator, which comprises an insulating stand column and insulating plates, the insulating plates are equidistantly arranged on the surface of the insulating stand column, the insulating stand column and the insulating plates are of an integrated structure, an inner cavity of the insulating stand column is provided with a mounting through hole in a penetrating manner, and an inner cavity of the mounting through hole is provided with a reinforcing support column. The two ends of an inner cavity of the mounting through hole are provided with connecting wire cylinders, the connecting wire cylinders are located on the surfaces of the two ends of the insulating stand column, inner cavities of the connecting wire cylinders are in threaded connection with fixing screw rods, the tops of the fixing screw rods are fixedly connected with fixing plates, and the surface of one set of fixing plates is movably provided with a mounting plate. Therefore, a proper threading frame can be installed according to the size of a cable during use, the universality of the post insulator can be improved, the structural strength of the post insulator can be improved, and the fracture of the post insulator caused by the tensile force generated when the cable is erected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulators, in particular to a post insulator. Background Technique

[0002] A post insulator is a special insulation control device that can play an important role in overhead transmission lines. In the early years, post insulators were mostly used for utility poles. Slowly, many suspended insulators were hung at one end of the high-type high-voltage wire connection tower. It is used to increase the creepage distance and is usually made of silica gel or insulation, and is called an insulator. Insulators play two basic roles in overhead transmission lines, namely supporting the conductor and preventing current from returning to the ground. These two roles must be ensured. Insulators should not fail due to flashover breakdown caused by changes in environmental and electrical load conditions. Otherwise, the insulators will lose their function and damage the service life and operation life of the entire line.

[0003] The existing post insulator locks the cable through a wire threading frame. The wire threading frame on the post insulator is adapted to the size of the cable. When using cables of different sizes, corresponding post insulators need to be selected, resulting in a large number of post insulator models. At the same time, after the cable is erected, the cable will generate a pulling force on the post insulator under the action of gravity. In windy weather, the cable will swing, increasing the pulling force and posing a risk of fracture of the post insulator. To solve the above problems, a post insulator is proposed in this application. Summary of the Utility Model

[0004] (I) Purpose of the Utility Model

[0005] To solve the technical problems in the background technique, the utility model proposes a post insulator. The post insulator locks the cable through a wire threading frame, and the wire threading frame can be quickly replaced so as to install a suitable wire threading frame according to the cable size during use, which can improve the versatility of the post insulator and enhance the structural strength of the post insulator, avoiding the fracture of the post insulator caused by the pulling force generated during the erection of the cable, so as to solve the problems proposed in the background technique.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, the utility model provides a post insulator, which includes an insulating column and an insulating plate. The insulating plates are equidistantly arranged on the surface of the insulating column, and the insulating column and the insulating plate are of an integral structure. An installation through hole is formed through the inner cavity of the insulating column. A reinforcing support column is arranged in the inner cavity of the installation through hole. Connecting screw cylinders are arranged at both ends of the inner cavity of the installation through hole. The connecting screw cylinders are located on the surfaces at both ends of the insulating column. A fixing screw rod is threadedly connected in the inner cavity of the connecting screw cylinder. Fixing plates are fixedly connected to the tops of the fixing screw rods. An installation plate is movably arranged on the surface of one group of the fixing plates, and wire threading frames are fixedly welded on the surface of the installation plate.

[0008] Preferably, an insulating sleeve is sleeved on the surface of the reinforcing support column, and the insulating sleeve is of a closed structure.

[0009] Preferably, the outer edge of the insulating sleeve abuts against the inner wall surface of the mounting through hole, and the bottom of the connecting wire cylinder abuts against the two ends of the insulating sleeve.

[0010] Preferably, the fixing holes on the surfaces of the fixing plate and the mounting plate coincide, and fixing bolts are inserted into the inner cavities of the fixing holes.

[0011] Preferably, positioning holes are formed through the surface of the insulating column, and corresponding holes are formed through the surfaces of the connecting wire cylinder and the fixing screw rod at positions corresponding to the positioning holes.

[0012] Preferably, after the fixing screw rod is threadedly connected to the connecting wire cylinder, the corresponding holes coincide with the positioning holes.

[0013] Preferably, positioning pins are movably inserted into the inner cavities of the positioning holes and the corresponding holes, and locking frames are welded to the top surfaces of the wire threading frames.

[0014] The above technical solution of the present utility model has the following beneficial technical effects:

[0015] 1. In the present utility model, the cable passes through the wire threading frame, and the bottom of the fixing plate is threadedly connected to the connecting wire cylinder through the fixing screw rod, so as to quickly fix the fixing plate. The bottom of the insulating column can be fixed through the fixing plate. At the same time, the mounting plate is placed on the surface of the fixing plate at the top of the insulating column, and the fixing holes on the surfaces of the fixing plate and the mounting plate coincide. The quick fixing of the wire threading frame can be realized by matching the fixing bolts with the fixing holes, and the quick replacement of the wire threading frame can be realized, so as to clamp cables of different sizes during use.

[0016] 2. In the present utility model, a reinforcing support column is installed in the inner cavity of the insulating column through a mounting through hole, and an insulating sleeve is sleeved on the surface of the reinforcing support column. The insulating sleeve can improve the insulation of the reinforcing support column during use, and the reinforcing support column can support the insulating column to improve the structural strength of the insulating column during use and prevent the insulating column from breaking after being subjected to the cable tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall structural schematic diagram of a post insulator of the present utility model;

[0018] Figure 2 is a sectional structural schematic diagram of a post insulator of the present utility model;

[0019] Figure 3 is a schematic diagram of the installation structure of the reinforcing support column of a post insulator of the present utility model;

[0020] Figure 4 The utility model is a schematic diagram of the installation structure of a threading frame for a post insulator.

[0021] Reference numerals:

[0022] 1. Insulating column; 2. Insulating plate; 3. Connecting wire tube; 4. Fixing plate; 5. Fixing screw rod; 6. Mounting plate; 7. Threading rack; 8. Positioning hole; 9. Corresponding hole; 10. Positioning pin; 11. Strengthening support column; 12. Insulating sleeve; 13. Mounting through hole; 14. Locking rack. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] like Figures 1-4 As shown, a post insulator proposed by the utility model comprises an insulating column 1 and an insulating plate 2, wherein the insulating plate 2 is equidistantly arranged on the surface of the insulating column 1, and the insulating column 1 and the insulating plate 2 are an integrated structure, a mounting through hole 13 is penetrated through the inner cavity of the insulating column 1, a reinforcing support column 11 is arranged in the inner cavity of the mounting through hole 13, connecting wire barrels 3 are arranged at both ends of the inner cavity of the mounting through hole 13, the connecting wire barrels 3 are located on the surfaces of both ends of the insulating column 1, a fixing screw rod 5 is threadedly connected to the inner cavity of the connecting wire barrel 3, and a fixing plate 4 is fixedly connected to the top of the fixing screw rod 5, wherein a group of the fixing plates 4 are movably provided with a mounting plate 6 on the surface, and a threading frame 7 is fixedly welded to the surface of the mounting plate 6.

[0025] It should be noted that the cable passes through the wire threading frame 7. The cable can be quickly clamped by matching the locking frame 14 with the locking bolt, and the cable can be fixed on the insulating column 1. The bottom of the fixing plate 4 is threadedly connected to the connecting wire barrel 3 through the fixing screw rod 5, which can quickly fix the fixing plate 4. The bottom of the insulating column 1 can be fixed through the fixing plate 4. At the same time, the mounting plate 6 is placed on the surface of the fixing plate 4 at the top of the insulating column 1, and the fixing holes on the surfaces of the fixing plate 4 and the mounting plate 6 coincide. The wire threading frame 7 can be quickly fixed by matching the fixing bolt with the fixing hole, and the wire threading frame 7 can be quickly replaced, so as to clamp cables of different sizes during use. The inner cavity of the insulating column 1 is provided with a reinforcing support column 11 through the mounting through hole 13, and an insulating sleeve 12 is sleeved on the surface of the reinforcing support column 11. The insulating sleeve 12 can improve the insulation of the reinforcing support column 11 during use. The reinforcing support column 11 can support the insulating column 1 to improve the structural strength of the insulating column 1 during use and prevent the insulating column 1 from breaking after being subjected to the cable tension.

[0026] In this embodiment, as Figure 3 and Figure 4 shown, an insulating sleeve 12 is sleeved on the surface of the reinforcing support column 11. The insulating sleeve 12 is of a closed structure. The outer edge of the insulating sleeve 12 abuts against the inner wall surface of the mounting through hole 13, and the bottom of the connecting wire barrel 3 abuts against both ends of the insulating sleeve 12.

[0027] It should be noted that the insulating sleeve 12 covers the surface of the reinforcing support column 11, which can improve the insulation effect of the reinforcing support column 11.

[0028] In this embodiment, as Figure 1 shown, the fixing holes on the surfaces of the fixing plate 4 and the mounting plate 6 coincide, and a fixing bolt is inserted into the inner cavity of the fixing hole.

[0029] It should be noted that the fixing plate 4 and the mounting plate 6 are fixed by the fixing bolt.

[0030] In this embodiment, as Figure 3 and Figure 4 shown, a positioning hole 8 is formed through the surface of the insulating column 1. Corresponding holes 9 are formed through the surfaces of the connecting wire barrel 3 and the fixing screw rod 5 at positions corresponding to the positioning hole 8. After the fixing screw rod 5 is threadedly connected to the connecting wire barrel 3, the corresponding hole 9 coincides with the positioning hole 8. Positioning pins 10 are movably inserted into the inner cavities of the positioning hole 8 and the corresponding hole 9. Locking frames 14 are welded to the top surfaces of the wire threading frames 7.

[0031] It should be noted that the locking frame 14 can lock the wire threading frame 7. After the fixing screw rod 5 is threadedly connected to the connecting wire cylinder 3, the positioning hole 8 coincides with the corresponding hole 9, and the positioning pin 10 is inserted into the positioning hole 8 and the corresponding hole 9. The wire threading frame 7 can be positioned through the positioning pin 10, which can improve the installation stability of the wire threading frame 7 and prevent the wire threading frame 7 from loosening during use.

[0032] The working principle and usage process of the present utility model are as follows: The cable passes through the wire threading frame 7. The cable can be quickly clamped by the cooperation of the locking frame 14 and the locking bolt, and the cable can be fixed on the insulating column 1. The bottom of the fixing plate 4 is threadedly connected to the connecting wire cylinder 3 through the fixing screw rod 5, which can quickly fix the fixing plate 4. The bottom of the insulating column 1 can be fixed through the fixing plate 4. At the same time, the mounting plate 6 is placed on the surface of the fixing plate 4 at the top of the insulating column 1, and the fixing holes on the surfaces of the fixing plate 4 and the mounting plate 6 coincide. The wire threading frame 7 can be quickly fixed by the cooperation of the fixing bolt and the fixing hole, and the wire threading frame 7 can be quickly replaced to clamp cables of different sizes during use. After the fixing screw rod 5 is threadedly connected to the connecting wire cylinder 3, the positioning hole 8 coincides with the corresponding hole 9, and the positioning pin 10 is inserted into the positioning hole 8 and the corresponding hole 9. The wire threading frame 7 can be positioned through the positioning pin 10, which can improve the installation stability of the wire threading frame 7 and prevent the wire threading frame 7 from loosening during use. The inner cavity of the insulating column 1 is provided with a reinforcing support column 11 through the installation through hole 13, and an insulating sleeve 12 is sleeved on the surface of the reinforcing support column 11. The insulating sleeve 12 can improve the insulation of the reinforcing support column 11 during use. The reinforcing support column 11 can support the insulating column 1 to improve the structural strength of the insulating column 1 during use and prevent the insulating column 1 from breaking after being subjected to the cable tension.

[0033] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims or equivalent forms of such scope and boundary.

Claims

1. A post insulator, comprising an insulating column (1) and an insulating plate (2), wherein the insulating plates (2) are equidistantly arranged on the surface of the insulating column (1), and the insulating column (1) and the insulating plate (2) are of an integral structure, characterized in that, The inner cavity of the insulating column (1) is provided with an installation through hole (13) running through it, and a reinforcing support column (11) is arranged in the inner cavity of the installation through hole (13); Both ends of the inner cavity of the installation through hole (13) are provided with connecting wire drums (3). The connecting wire drums (3) are located on the surfaces of both ends of the insulating column (1). A fixing screw rod (5) is threadedly connected in the inner cavity of the connecting wire drum (3). Fixing plates (4) are fixedly connected to the tops of the fixing screw rods (5). An installation plate (6) is movably arranged on the surface of one group of the fixing plates (4), and a wire threading frame (7) is fixedly welded on the surface of the installation plate (6).

2. The post insulator according to claim 1, characterized in that, An insulating sleeve (12) is sleeved on the surface of the reinforcing support column (11), and the insulating sleeve (12) is of a closed structure.

3. The post insulator according to claim 2, wherein, The outer edge of the insulating sleeve (12) abuts against the inner wall surface of the installation through hole (13), and the bottoms of the connecting wire drums (3) abut against the surfaces of both ends of the insulating sleeve (12).

4. A post insulator according to claim 3, characterized in that, The fixing holes on the surfaces of the fixing plate (4) and the installation plate (6) coincide, and fixing bolts are inserted into the inner cavities of the fixing holes.

5. A post insulator according to claim 4, characterized in that, Positioning holes (8) are provided through the surface of the insulating column (1), and corresponding holes (9) are provided through the surfaces of the connecting wire drum (3) and the fixing screw rod (5) at positions corresponding to the positioning holes (8).

6. A post insulator according to claim 5, characterized in that, After the fixing screw rod (5) is threadedly connected with the connecting wire drum (3), the corresponding holes (9) coincide with the positioning holes (8).

7. A post insulator according to claim 6, characterized in that, Positioning pins (10) are movably inserted into the inner cavities of the positioning holes (8) and the corresponding holes (9), and locking frames (14) are welded on the top surfaces of the wire threading frames (7).

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