Static contact mounting device for three-position isolating switch

Abstract

The utility model relates to the field of high-voltage switch equipment installation, in particular to a three-station isolating switch static contact installation device, which comprises a substrate and a positioning piece, the substrate is fixed on an installation table, and the positioning piece is connected onto the substrate; the positioning pieces are marked as a plurality of first positioning rods, a plurality of second positioning rods and a plurality of third positioning rods according to positioned components, the first positioning rods are used for being matched with insulators, the second positioning rods are arranged on the peripheries of the first positioning rods, the first positioning rods are located in a projection formed by the second positioning rods, and the second positioning rods are used for being matched with cushion blocks; the third positioning rod is located on one side of the first positioning rod and used for being matched with the cushion block, and the length of the third positioning rod is smaller than that of the second positioning rod. According to the utility model, through optimization in the aspects of modular design, accurate positioning, detachability and flexibility, stability and protection, installation convenience and the like, an efficient, accurate and reliable solution is provided for installation of the static contact.

Description

Technical Field

[0001] The utility model relates to the field of high - voltage switchgear installation, and specifically to a static contact installation device for a three - position disconnector. Background Technique

[0002] Three - position disconnectors are widely used in gas - insulated switchgear and are responsible for realizing functions of safety isolation, grounding, and on - off in the circuit. Due to the limitations of the internal space of the gas - insulated switchgear and the processing technology, the static contacts of the three - position disconnectors need to be installed outside the cabinet in advance and then installed into the cabinet in the form of components, aiming to reduce the difficulty of fine operations in a limited space and improve the accuracy and speed of installation. However, when installing these components outside the cabinet, especially when connecting the aluminum pads and insulators, the problems encountered are particularly prominent.

[0003] The components include aluminum pads, insulators, and static contacts. When installing outside the cabinet, the aluminum pads and insulators need to be firmly connected with bolts. During the tightening process of the bolts, the insulators and aluminum pads cannot be effectively fixed and will rotate together as the bolts are tightened, resulting in the inability to tighten the bolts, affecting the installation quality and efficiency. Similarly, there are also rotation problems when installing the insulators and static contacts. Content of the Utility Model

[0004] Aiming at the problem that the installation quality and efficiency are affected due to the rotation of aluminum pads, insulators, and static contacts in the prior art, the utility model provides a static contact installation device for a three - position disconnector, which provides an efficient, accurate, and reliable solution for the installation of static contacts through optimization in aspects such as modular design, precise positioning, detachable and flexible, stable and protective, and convenient installation.

[0005] The utility model is realized through the following technical solutions:

[0006] A static contact installation device for a three - position disconnector includes a base plate and positioning parts. The base plate is fixed on an installation table, and the positioning parts are connected to the base plate. The positioning parts are denoted as multiple first positioning rods, multiple second positioning rods, and multiple third positioning rods according to the components to be positioned. The first positioning rods are used to cooperate with insulators. The second positioning rods are arranged on the periphery of the first positioning rods, and the first positioning rods are located inside the projection formed by the multiple second positioning rods. The second positioning rods are used to cooperate with pads. The third positioning rods are located on one side of the first positioning rods and are used to cooperate with pads. The length of the third positioning rods is less than the length of the second positioning rods.

[0007] Preferably, the positioning parts are fixedly or detachably connected to the base plate.

[0008] Preferably, threaded holes are provided on the base plate, threads are provided at the bottom of the positioning parts, and the positioning parts are matched with the threaded holes on the base plate through the threads.

[0009] Preferably, the substrate is provided with mounting holes penetrating through the substrate, and the bottom of the positioning member is provided with bumps, which are matched with the mounting holes.

[0010] Preferably, a flexible pad is provided on the contact surface between the substrate and the positioning member.

[0011] Preferably, the arrangement modes of the plurality of second positioning rods and the plurality of third positioning rods are the same.

[0012] Preferably, the height of the second positioning rod is greater than or equal to the sum of the height of the insulator and the thickness of the spacer block.

[0013] Preferably, the height of the third positioning rod is greater than or equal to the thickness of the spacer block.

[0014] Preferably, the height of the first positioning rod is less than or equal to the depth of the static contact mounting hole of the insulator.

[0015] Preferably, mounting screws are further provided at the four corners of the substrate, and the mounting screws are used to connect the substrate and the mounting table.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The static contact mounting device of a three-position disconnector of the utility model fixes different components by setting a positioning member including a first positioning rod, a second positioning rod and a third positioning rod. Among them, the first positioning rod is mainly used for initially positioning the insulator to achieve rapid and stable initial fixation; the second positioning rod is designed for the spacer block, and through accurately matched hole positions, it ensures that the spacer block can be accurately combined with the second positioning rod; the third positioning rod is used as a support and positioning tool in the final assembly stage, and its design allows the spacer block to be stably placed in a specific direction, providing the best operating space and positioning reference for the installation of the static contact, thereby reducing the rotation generated during the installation process, and is applicable to the installation of the static contact of a three-position disconnector in a gas-insulated switchgear.

[0018] During use, first cooperate the insulator with the first positioning rod, and then cooperate the spacer block with the second positioning rod. At this time, assemble the insulator and the spacer block; then, take out the assembled body of the insulator and the spacer block, and turn over the assembled body to cooperate the spacer block with the third positioning rod with the spacer block facing down. At this time, the bottom of the insulator is located above, and assemble the static contact above the insulator to complete the assembly of the three components.

[0019] Furthermore, the detachable connection mode (such as threaded connection) between the positioning member and the substrate makes maintenance, replacement or adjustment simple and fast. Moreover, the position and quantity of the positioning member can be adjusted according to actual requirements to adapt to the installation of static contacts of different specifications and types.

[0020] Furthermore, the height design of the second positioning rod ensures that the spacer block can fully support the static contact.

[0021] Furthermore, the third positioning rod is used to provide an additional limiting function.

[0022] Furthermore, the flexible pad can effectively reduce looseness and noise caused by vibration or temperature changes, while protecting the contact surface from wear.

[0023] Furthermore, the installation of the mounting screws further enhances the connection strength between the substrate and the mounting table, ensuring the stability of the entire mounting device during operation. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a static contact mounting device for a three-position disconnector of the present utility model;

[0025] Figure 2 is a schematic diagram of the substrate in a static contact mounting device for a three-position disconnector of the present utility model;

[0026] Figure 3 is an assembly schematic diagram of an insulator and a spacer in a static contact mounting device for a three-position disconnector of the present utility model;

[0027] Figure 4 is an assembly schematic diagram of an insulator and a static contact in a static contact mounting device for a three-position disconnector of the present utility model.

[0028] In the figure, 1. Substrate; 11. Mounting and fixing hole; 12. Third positioning hole; 13. Second positioning hole; 14. First positioning hole; 2. Mounting screw; 3. Third positioning rod; 31. Third connecting thread; 4. Second positioning rod; 41. Second connecting thread; 5. First positioning rod; 51. First connecting thread; 6. Insulator; 7. Spacer; 71. Spacer positioning hole; 72. Spacer mounting hole; 8. Static contact; 81. Static contact mounting hole; 9. First mounting bolt; 10. Second mounting bolt. Detailed Description of the Preferred Embodiments

[0029] The following further describes the present utility model in detail with reference to specific embodiments, which is an explanation rather than a limitation of the present utility model.

[0030] The present utility model discloses a static contact mounting device for a three-position disconnector. Referring to Figure 1 , it includes a substrate 1 and positioning members. The substrate 1 is fixed on the mounting table. In this embodiment, mounting screws 2 are further provided at the four corners of the substrate 1. The mounting screws 2 pass through the mounting and fixing holes 11 on the substrate 1 to connect and fix the substrate 1 to the mounting table. The substrate 1 serves as the foundation of the entire mounting device, and its structure is stable. The use of the mounting screws 2 not only enhances the reliability of the connection but also facilitates subsequent disassembly and maintenance operations.

[0031] The positioning member is fixedly connected (such as welded) or detachably connected to the substrate 1. As a key component for achieving precise positioning, the positioning member adopts a detachable modular design. During use, different types of positioning rods (including the first, second, and third positioning rods 3) can be flexibly selected for combination according to specific installation requirements to adapt to the installation of static contacts 8 of different specifications and models. Refer to Figure 2 , for example, threaded holes are provided on the substrate 1, and threads are provided at the bottom of the positioning member. The positioning member is matched with the threaded holes on the substrate 1 through the threads. The threaded structure designed at the bottom of the positioning member matches the threaded holes on the substrate 1, and rapid installation and disassembly can be achieved through rotation operations, greatly improving work efficiency. Or through holes penetrating the substrate 1 are provided on the substrate 1, and bumps are provided at the bottom of the positioning member. The bumps can also be fitted with the through holes. The bumps can be wedge-shaped or other shapes, or other connection structures with locking, such as pins or buckles. In this embodiment, a flexible pad is further provided on the contact surface between the substrate 1 and the positioning member. The flexible pad can effectively strengthen the connection tightness between the substrate 1 and the positioning member, and can also effectively reduce looseness and noise caused by vibration or temperature changes, while protecting the contact surface from wear.

[0032] The positioning member is denoted as a plurality of first positioning rods 5, a plurality of second positioning rods 4, and a plurality of third positioning rods 3 according to the components to be positioned. The first positioning rod 5 is used to cooperate with the insulator 6. The second positioning rods 4 are arranged around the first positioning rod 5, and the first positioning rod 5 is located inside the projection formed by the plurality of second positioning rods 4. The second positioning rods 4 are used to cooperate with the spacer 7. The third positioning rod 3 is located on one side of the first positioning rod 5. The third positioning rod 3 is used to cooperate with the spacer 7, and the length of the third positioning rod 3 is less than the length of the second positioning rod 4. The arrangement modes of the plurality of second positioning rods 4 and the plurality of third positioning rods 3 are the same. In this embodiment, the first positioning rod 5 is fixedly connected to the first positioning hole 14 on the substrate 1 through the first connection thread 51, the second positioning rod 4 is connected to the second positioning hole 13 on the substrate 1 through the second connection thread 41, and the third positioning rod 3 is fixedly connected to the third positioning hole 12 on the substrate 1 through the third connection thread 31.

[0033] The first positioning rod 5 directly cooperates with the insulator 6 to ensure the precise alignment of the static contact 8 in the vertical direction; the second positioning rods 4 are arranged around the first positioning rod 5 to form a protective barrier, and at the same time cooperate closely with the spacer 7 to stabilize the horizontal position of the static contact 8; the third positioning rod 3 is located on one side. Although its length is shorter, it also plays a key limiting role to ensure the proper installation of the spacer 7. In this embodiment, the first positioning rod 5 cooperates with the first installation hole provided on the insulator. The first installation hole is used to connect the insulator 6 and the static contact 8. Both the second positioning rods 4 and the third positioning rods 3 cooperate with the spacer positioning holes 71 on the spacer 7.

[0034] To ensure the accuracy and reliability of the installation, the heights of the respective positioning rods are precisely calculated based on the actual installation requirements. In this embodiment, the height of the second positioning rod 4 is greater than or equal to the sum of the height of the insulator 6 and the thickness of the spacer 7, the height of the third positioning rod 3 is greater than or equal to the thickness of the spacer 7, and the height of the first positioning rod 5 is less than or equal to the depth of the static contact mounting hole 81 of the insulator 6. The height of the second positioning rod 4 ensures that it can support both the insulator 6 and the spacer 7 simultaneously. The third positioning rod 3 reaches at least the thickness of the spacer 7. Limiting the height of the first positioning rod 5 is to prevent it from being too long to interfere with the internal structure of the insulator 6.

[0035] Referring to Figure 3 、 4 , the implementation principle of a static contact installation device for a three-position disconnector disclosed by the present utility model is as follows:

[0036] Initial assembly stage: First, the operator places the first mounting hole of the insulator 6 for connecting the insulator 6 and the static contact 8 on the first positioning rod 5, and quickly realizes the initial positioning and fixation of the insulator 6 by the guiding action of the first positioning rod 5. Subsequently, the second positioning rod 4 is passed through the spacer positioning hole 71 of the spacer 7 and placed on the insulator 6. At this time, the spacer mounting hole 72 of the spacer 7 and the second mounting hole on the insulator 6 for connecting the insulator 6 and the spacer 7 are automatically positioned, and then the first mounting bolt 9 is used to pass through the spacer mounting hole 72 and the second mounting hole to assemble the two to form a stable initial combination.

[0037] Flipping and final assembly: After the initial assembly is completed, the operator removes the initial combination of the insulator 6 and the spacer 7 from the second positioning rod 4 and places it on the substrate 1 in a specific direction (the spacer 7 downward). Specifically, the spacer 7 is placed on the substrate 1 through the third positioning rod 3 by passing through the spacer positioning hole 71. The insulator 6 and the second bolt are connected through the static contact mounting hole 81 and the first mounting hole. Thus, the assembly of the static contact 8 component is completed. In this step, the third positioning rod 3 not only provides stable support but also ensures the correct direction and height during the subsequent installation of the static contact 8. Finally, the static contact 8 is accurately aligned with the interface above the insulator 6 for final assembly and fastening to complete the entire installation process.

[0038] The static contact installation device of a three-position disconnector in the utility model effectively reduces rotation and offset during the installation process through a cleverly designed positioning part system with multi-stage positioning and fixation, ensuring precise docking between components. This makes the installation steps clearer and more orderly, greatly simplifies the installation process, reduces errors and rotational offset during installation, and enables the components to be firmly fixed with the assistance of the positioning parts, improving the stability and reliability of the overall structure. It ensures precise docking and stable installation between key components such as the static contact 8, insulator 6, and spacer 7, and is particularly suitable for the internal installation environment of gas-insulated switchgear with limited space and high precision requirements, providing an efficient solution for the installation of the static contact 8 of the three-position disconnector.

[0039] The above are only the preferred embodiments of the utility model and are not used to limit the technical solutions of the utility model. Those skilled in the art should understand that without departing from the spirit and principles of the utility model, the technical solutions can be modified and replaced simply in several aspects, and these modifications and replacements also fall within the protection scope covered by the claims.

Claims

1. A static contact installation device for a three-position disconnecting switch, characterized in that, It includes a substrate (1) and positioning members. The substrate (1) is fixed on an installation table, and the positioning members are connected to the substrate (1); the positioning members are denoted as a plurality of first positioning rods (5), a plurality of second positioning rods (4), and a plurality of third positioning rods (3) according to the components to be positioned. The first positioning rod (5) is used to cooperate with the insulator (6). The second positioning rods (4) are arranged on the periphery of the first positioning rod (5), and the first positioning rod (5) is located inside the projection formed by the plurality of second positioning rods (4). The second positioning rod (4) is used to cooperate with the spacer block (7). The third positioning rod (3) is located on one side of the first positioning rod (5), and the third positioning rod (3) is used to cooperate with the spacer block (7). The length of the third positioning rod (3) is less than the length of the second positioning rod (4).

2. The static contact installation device of the three-position disconnector according to claim 1, characterized in that, The positioning members are fixedly or detachably connected to the substrate (1).

3. The static contact installation device of the three-position disconnector according to claim 2, characterized in that Threaded holes are provided on the substrate (1), threads are provided at the bottom of the positioning members, and the positioning members are fitted with the threaded holes on the substrate (1) through the threads.

4. The static contact installation device of the three-position disconnector according to claim 2, characterized in that, Mounting holes penetrating the substrate (1) are provided on the substrate (1), and bumps are provided at the bottom of the positioning members, and the bumps are fitted with the mounting holes.

5. The static contact installation device of the three-position disconnector according to claim 3 or 4, characterized in that, A flexible pad is provided on the contact surface between the substrate (1) and the positioning members.

6. The static contact installation device of the three-position disconnector according to claim 1, characterized in that The arrangement manners of the plurality of second positioning rods (4) and the plurality of third positioning rods (3) are the same.

7. The static contact installation device of the three-position disconnector according to claim 1, characterized in that, The height of the second positioning rod (4) is greater than or equal to the sum of the height of the insulator (6) and the thickness of the spacer block (7).

8. The static contact installation device of the three-position disconnector according to claim 1, characterized in that, The height of the third positioning rod (3) is greater than or equal to the thickness of the spacer block (7).

9. The static contact installation device of the three-position disconnector according to claim 1, characterized in that The height of the first positioning rod (5) is less than or equal to the depth of the mounting hole of the static contact (8) of the insulator (6).

10. The static contact installation device of the three-position disconnector according to claim 1, characterized in that, Mounting screws (2) are further provided at the four corners of the substrate (1), and the mounting screws (2) are used to connect the substrate (1) and the installation table.

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