A fixing device for assisting porcelain bush lightning arrester base installation

Abstract

This utility model discloses a fixing device for assisting in the installation of a porcelain surge arrester base, belonging to the field of surge arrester technology. It includes a support frame, with positioning plates spaced at intervals on the upper part of the support frame that can partially mate with the porcelain surge arrester. A base plate placement area is reserved between the positioning plates and the support frame for placing the base plate body. The base plate body has several first threaded holes, which can mate with second threaded holes on the porcelain insulator base of the porcelain surge arrester to be installed. The support frame provides support for the base plate body, and the positioning plates form an assembly reference and guide for the porcelain surge arrester, thereby facilitating adjustment to ensure complete alignment of the first and second threaded holes. This not only reduces the cumbersome operation and difficulty of assembling the porcelain surge arrester base but also improves the safety factor during operation.

Description

Technical Field

[0001] This utility model belongs to the field of surge arrester technology, specifically a fixing device for assisting in the installation of a porcelain bushing surge arrester base. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from the high transient overvoltages caused by lightning strikes, and to limit the follow current time and often the follow current amplitude. AC gapless metal oxide surge arresters are used to protect the insulation of AC power transmission and transformation equipment from damage caused by lightning overvoltages and switching overvoltages. They are suitable for overvoltage protection of transformers, transmission lines, distribution panels, switchgear, power metering boxes, vacuum switches, parallel compensation capacitors, rotating motors, and semiconductor devices.

[0003] Porcelain-insulated surge arresters are core equipment in traditional power systems due to their high insulation strength, mechanical reliability, and economy. However, they are large and heavy (e.g., a 220kV surge arrester weighs up to 500kg), making them more difficult to assemble, manufacture, transport, and install than composite-insulated surge arresters.

[0004] The assembly and manufacturing process of porcelain-insulated surge arresters is a core aspect determining their performance and reliability. Currently, the assembly of porcelain-insulated surge arresters mainly includes low-voltage terminal assembly, core assembly, high-voltage terminal assembly, and base assembly. Among these, base assembly requires using a crane to lift the heavy porcelain insulator, followed by manual positioning and installation. This process involves multiple tools for reference, is complex, time-consuming, and poses safety risks when performed under a crane. Therefore, we need to propose a positioning and fixing structure for porcelain-insulated surge arrester base installation to solve the above problems. Utility Model Content

[0005] To address the challenges of complex, difficult, and high-safety-risk assembly of porcelain surge arresters due to their large size and weight, this invention provides a fixing device to assist in the installation of porcelain surge arrester bases.

[0006] This utility model is achieved through the following technical solution:

[0007] A fixing device for installing a porcelain surge arrester base includes a support frame, with positioning plates spaced apart on the upper part of the support frame to partially mate with the porcelain surge arrester; a base plate placement area is reserved between the positioning plates and the support frame to place the base plate body; the base plate body has a plurality of first threaded holes, which can mate with second threaded holes provided on the porcelain insulator base of the porcelain surge arrester to be installed.

[0008] The support frame provides support for the base plate, and the positioning plate forms an assembly reference and guide for the porcelain surge arrester, thereby facilitating the alignment of the first threaded hole and the second threaded hole. This not only reduces the cumbersome operation and difficulty of assembling the porcelain surge arrester base, but also improves the safety factor during operation.

[0009] A further improvement of this utility model is that an explosion-proof opening is provided on one side of the porcelain insulator base, and a positioning groove is provided on the positioning plate. The positioning groove can cooperate with the side of the porcelain insulator base opposite to the explosion-proof opening. The positioning plate serves as a reference and guide component for the porcelain-insulated surge arrester, mainly by cooperating with the side of the porcelain insulator base opposite to the explosion-proof opening through the positioning groove. The placement of the porcelain-insulated surge arrester is accurately located through the contact between the side walls.

[0010] A further improvement of this invention is that the positioning plate is rectangular, with the positioning groove on one side and the other three sides forming the outer positioning surface. This outer positioning surface is connected to the support frame via a support plate. This helps improve the stability of the positioning plate on the support frame and prevents misalignment between the first and second threaded holes caused by arbitrary movement of the positioning plate.

[0011] A further improvement of this invention is that the support frame includes four square-distributed support angle irons, with the inner corners of the support angle irons facing inwards. The structure is simple, the support strength is high, and the materials are readily available.

[0012] A further improvement of this utility model is that a leg support plate is provided at the inner corner of the upper part of the aforementioned supporting angle iron; the bottom surface of the base plate body is provided with base plate legs that respectively cooperate with the four leg support plates. The leg support plates on the supporting angle iron provide support points for the base plate legs.

[0013] A further improvement of this invention is that the distance between the bottom surface of the positioning plate and the top surface of the supporting angle iron is not less than the distance between the top surface of the base plate body and the bottom surface of the base plate leg column. This facilitates the placement and removal of the base plate body and its base plate leg columns within the base plate placement area.

[0014] A further improvement of this invention is that the top surface of the aforementioned leg support plate is flush with the top surface of the supporting angle iron. This rational layout facilitates the overall structural forming and also improves the placement of the base plate body and its leg columns.

[0015] A further improvement of this invention is that a fixing plate is connected to the bottom surface of the support frame. The fixing plate provides stable support for the support frame.

[0016] As can be seen from the above technical solution, the beneficial effects of this utility model are: the support frame provides support for the base plate body, and the positioning plate forms an assembly reference and guide for the porcelain sleeve surge arrester, thereby facilitating the adjustment to make the first threaded hole and the second threaded hole fully aligned. This not only reduces the cumbersome operation and difficulty of assembling the porcelain sleeve surge arrester on the base, but also improves the safety factor during the operation. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the base plate.

[0020] Figure 3 This is a three-dimensional schematic diagram of a porcelain-insulated surge arrester.

[0021] Figure 4 This is a top view of the porcelain bottle base.

[0022] In the attached diagram: 1. Fixing plate; 2. Supporting angle iron; 3. Leg support plate; 4. Support plate; 5. Positioning plate; 51. Base plate placement area; 52. Positioning groove; 53. Positioning outer side; 6. Reinforcing plate; 7. Base plate body; 71. First threaded hole; 72. Base plate leg; 8. Porcelain bottle base; 81. Second threaded hole; 82. Explosion-proof port. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] like Figures 1-4As shown, this utility model discloses a fixing device for assisting in the installation of a porcelain bushing surge arrester base, including a support frame. The support frame is provided with positioning plates 5 at intervals on its upper part, which can partially cooperate with the porcelain bushing surge arrester. A base plate placement area 51 is reserved between the positioning plates 5 and the support frame, which can place the base plate body 7. The base plate body 7 is provided with a plurality of first threaded holes 71, which can cooperate with the second threaded holes 81 provided on the porcelain bushing base 8 of the porcelain bushing surge arrester to be installed.

[0025] The support frame provides support for the base plate body 7, and the positioning plate body 5 forms an assembly reference and guide for the porcelain sleeve surge arrester, thereby facilitating the adjustment to ensure that the first threaded hole 71 and the second threaded hole 81 are fully aligned. This not only reduces the cumbersome operation and difficulty of assembling the porcelain sleeve surge arrester on the base, but also improves the safety factor during the operation.

[0026] The porcelain insulator base 8 has an explosion-proof opening 82 on one side, and the positioning plate 5 has a positioning groove 52. The positioning groove 52 can cooperate with the side of the porcelain insulator base 8 opposite to the explosion-proof opening 82. The positioning plate 5 serves as a reference and guide component for the porcelain-insulated surge arrester. It is mainly completed by the positioning groove 52 cooperating with the side of the porcelain insulator base 8 opposite to the explosion-proof opening 82. The placement of the porcelain-insulated surge arrester is accurately located by the abutment between the side walls.

[0027] The positioning plate 5 is rectangular, with the positioning groove 52 on one long side and the other three sides forming the positioning outer side 53. The positioning outer side 53 is connected to the support frame via the support plate 4. The area from the top surface of the support frame to the bottom surface of the positioning plate 5 inside the support plate 4 is the base plate placement area 51. This helps to improve the stability of the positioning plate 5 on the support frame and prevents the positioning plate 5 from moving arbitrarily, which could cause misalignment between the first threaded hole 71 and the second threaded hole 81. The base plate placement area 51 provides space for the base plate body 7, and the support plate 4 provides a constraint for the placement of the base plate body 7.

[0028] The support frame includes four square-distributed support angle irons 2, with the inner corners of the support angle irons 2 facing inward. It has a simple structure, high support strength, and readily available materials.

[0029] The outer positioning surface 53 of the positioning plate 5 is connected to two adjacent supporting angle irons 2 via a supporting plate 4; the supporting plate 4 has an overall U-shaped structure. The supporting plate 4 not only provides support for the positioning plate 5 spaced above the support frame, but also serves as a limiting and guiding component to ensure that the base plate body 7 is placed in the base plate placement area 51.

[0030] The support frame also includes reinforcing plates 6 for connecting two adjacent support angle irons 2. Two reinforcing plates 6 are provided, located at opposite ends of the positioning plate body 5, that is, on opposite sides of the positioning groove 52. The area without reinforcing plates 6 provides operating space for connecting the first threaded hole 71 and the second threaded hole 81 using fasteners.

[0031] The supporting angle iron 2 has a leg support plate 3 at the inner corner of its upper part; the bottom surface of the base plate body 7 has base plate legs 72 that cooperate with the four leg support plates 3 respectively. The leg support plates 3 on the supporting angle iron 2 provide support points for the base plate legs 72.

[0032] The distance between the bottom surface of the positioning plate 5 and the top surface of the supporting angle iron 2 is not less than the distance between the top surface of the base plate body 7 and the bottom surface of the base plate leg 72. This facilitates the placement and removal of the base plate body 7 and the base plate leg 72 within the base plate placement area 51.

[0033] The top surface of the leg support plate 3 is flush with the top surface of the supporting angle iron 2. This reasonable layout facilitates the overall structural forming and also improves the placement of the base plate body 7 and the base plate leg columns 72.

[0034] A fixing plate 1 is connected to the bottom surface of the support frame. The fixing plate 1 provides stable support for the support frame.

[0035] In summary, the method of using this device is as follows: Place the base plate body 7 into the base plate placement area 51, with the side of the base plate body 7 abutting against the inner side of the support plate 4. The overhead crane lifts the porcelain bushing surge arrester and places it on the fixing plate 1. The side of the porcelain bushing base 8 facing away from the explosion-proof port 82 abuts against the positioning groove 52 of the positioning plate body 5, thereby achieving the vertical correspondence between the first threaded hole 71 and the second threaded hole 81. Fasteners are then used to pass through the first threaded hole 71 and the second threaded hole 81 to complete the connection operation between the porcelain bushing base 8 and the base plate body 7. After the connection is completed, the surge arrester can be moved out of the fixing device.

[0036] The present invention provides a fixing device for the installation of a porcelain surge arrester base. The support frame provides support for the base plate body, and the positioning plate forms an assembly reference and guide for the porcelain surge arrester, thereby facilitating adjustment to ensure that the first threaded hole and the second threaded hole are fully aligned. This not only reduces the cumbersome operation and difficulty of assembling the porcelain surge arrester base, but also improves the safety factor during the operation.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing device for assisting the installation of a porcelain bush arrester base, comprising a support frame, characterized in that, The support frame is provided with positioning plates (5) at intervals above it, which can be partially matched with the porcelain sleeve arrester; a base plate placement area (51) is reserved between the positioning plate (5) and the support frame, which can be used to place the base plate body (7); the base plate body (7) is provided with a number of first threaded holes (71), which can be matched with the second threaded holes (81) provided on the porcelain bottle base (8) of the porcelain sleeve arrester to be installed.

2. The fixing device for installing the base of a porcelain bush lightning arrester according to claim 1, characterized in that, The porcelain bottle base (8) has an explosion-proof opening (82) on one side, and the positioning plate (5) has a positioning groove (52) that can cooperate with the side of the porcelain bottle base (8) away from the explosion-proof opening (82).

3. The fixing device for installing the base of the porcelain bush lightning arrester according to claim 2, characterized in that, The positioning plate (5) is rectangular, with the positioning groove (52) on one side and the other three sides forming the positioning outer side (53). The positioning outer side (53) is connected to the support frame through the support plate (4).

4. The fixing device for installing the base of a porcelain bush lightning arrester according to any one of claims 1 to 3, characterized in that, The support frame includes four square-shaped support angle irons (2), with the inner corners of the support angle irons (2) facing inward.

5. The fixing device for installing the base of a porcelain bush lightning arrester according to claim 4, characterized in that, The inner corner of the upper part of the supporting angle iron (2) is provided with a leg support plate (3); the bottom surface of the base plate body (7) is provided with base plate legs (72) that cooperate with the four leg support plates (3).

6. The fixing device for installing the base of a porcelain bush lightning arrester according to claim 5, characterized in that, The distance between the bottom surface of the positioning plate (5) and the top surface of the supporting angle iron (2) is not less than the distance between the top surface of the base plate body (7) and the bottom surface of the base plate leg column (72).

7. The fixing device for installing the base of a porcelain bush lightning arrester according to claim 6, characterized in that, The top surface of the leg support plate (3) is flush with the top surface of the supporting angle iron (2).

8. The fixing device for installing the base of a porcelain bush lightning arrester according to any one of claims 1 to 3, characterized in that, The bottom surface of the support frame is connected to a fixing plate (1).

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