Wall bushing for high-voltage switch cabinet

Abstract

The utility model provides a wall bushing for a high-voltage switch cabinet, and relates to the technical field of wall bushings, one end of a bushing body far away from an installation fixing plate is in threaded connection with a positioning disc close to the side wall of the high-voltage switch cabinet, and the side wall of the positioning disc facing the high-voltage switch cabinet is provided with an abutting pad. The positioning disc is rotated to enable the abutting pad to extrude the side wall of the high-voltage switch cabinet, and then the installation fixing plate is matched to extrude and fix the side wall of the adjacent high-voltage switch cabinet. According to the wall bushing, the positioning disc and the abutting pad are additionally arranged, and one end of the bushing body is in threaded connection, so that when the wall bushing is vibrated, the fixing plate can be cooperatively installed through the fastening effect of the positioning disc, loosening or displacement is effectively prevented, and the stability of the wall bushing is greatly improved; and due to the threaded connection design of the positioning disc and the sleeve body, the positioning disc is rotationally fixed after the installation fixing plate is fixed by installation personnel, and it is guaranteed that installation convenience is not affected.

Description

Technical Field

[0005] , ,

[0001] The utility model relates to the technical field of wall bushings, in particular to a wall bushing for a high-voltage switchgear cabinet. Background Art

[0002] A wall bushing, also called a wall pipe or a waterproof bushing, is a hardware fitting for a pipeline to pass through a wall; in a high-voltage switchgear cabinet system, wall bushings are also installed through holes between adjacent high-voltage switchgear cabinets for the connection of the circuit system to pass through, playing an insulating interval effect.

[0003] At present, the wall bushing for a high-voltage switchgear cabinet is connected to adjacent high-voltage switchgear cabinets. Among them, the Chinese patent named "A Wall Bushing for a High-voltage Switchgear Cabinet" with the application number <2019223>15800.3> includes a bushing body, a fixing block, a sleeve, a port, a copper conducting rod, a busbar, a mounting fixing plate, a rotating shaft and an auxiliary fixing plate. Fixing blocks are arranged at both left and right ends of the bushing body, and sleeves are arranged at the outer ends of the fixing blocks. The utility model can, when the size of the reserved hole does not match that of the mounting fixing plate of the bushing, by pulling the auxiliary fixing plate, the auxiliary fixing plate is unfolded on the side of the mounting fixing plate through the rotating shaft, so as to increase the range of the mounting fixing plate. On the one hand, it makes the installation more convenient, and on the other hand, it can improve the connection stability, can flexibly adjust the distance between the copper conducting rod and the bushing body, increase the connection length, can meet different installation requirements, greatly improves the versatility, and the angle of the busbar can be rotated, which is convenient for adjusting the angle of the busbar during installation and docking, making the installation and docking more convenient.

[0004] Combined with the prior art, we find that the main body of the wall bushing is the bushing body, with a mounting fixing plate provided in the middle section. The bushing body is located between adjacent high-voltage switchgear cabinets through both ends, and the mounting fixing plate is installed on the side wall of one high-voltage switchgear cabinet to complete the installation. During actual use, it is used to allow a conductor (such as a cable or a busbar) to safely pass through a wall or a partition while maintaining electrical insulation and mechanical support. When the wall bushing is vibrated, due to its relatively simple fixing structure, the wall bushing may be loosened or displaced, thereby affecting its normal operation and safety inside; it may also cause damage or displacement of the insulating material inside the wall bushing, thereby reducing its insulation performance, which increases the risk of electrical faults or short circuits and may cause harm to personnel and equipment. Therefore, we propose a wall bushing for a high-voltage switchgear cabinet to make the installation of the wall bushing for a high-voltage switchgear cabinet on adjacent high-voltage switchgear cabinets more stable. Summary of the Utility Model

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art. When the wall bushing is subjected to vibration, due to its relatively simple fixing structure, it may cause the wall bushing to loosen or displace, thereby affecting its normal operation and safety inside; it may also cause the insulating material inside the wall bushing to be damaged or displaced, thereby reducing its insulation performance, which increases the risk of electrical failure or short circuit, and may cause harm to personnel and equipment.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A wall bushing for a high-voltage switch cabinet comprises a bushing body and an integral mounting plate located in the middle section of the bushing body. The mounting plate is fixed to the inner wall of one side of an adjacent high-voltage switch cabinet and is connected to a corresponding adapter mounting hole of the adjacent high-voltage switch cabinet through the bushing body. A positioning plate is threadedly connected to the side wall of the high-voltage switch cabinet at one end of the bushing body away from the mounting plate. A contact pad is provided on the positioning plate facing the side wall of the high-voltage switch cabinet. The contact pad is squeezed against the side wall of the high-voltage switch cabinet by rotating the positioning plate, and then the side wall of the adjacent high-voltage switch cabinet is squeezed and fixed in cooperation with the mounting plate.

[0008] Furthermore, the positioning plate and the sleeve body are made of the same material, and the abutment pad is bonded to the positioning plate and is made of rubber.

[0009] Furthermore, a fixing hole is opened at the corner of the installation fixing plate, and the fixing plate is installed in a pre-opened hole on the side wall of the high-voltage switch cabinet through a fixing screw in the fixing hole.

[0010] Furthermore, the inner diameter of the positioning plate is provided with an internal thread, and the outer periphery of the sleeve body is provided with an external thread, and then the internal thread and the external thread are adapted to be connected for displacement adjustment.

[0011] Furthermore, an embedded groove is provided between the external thread and the mounting plate and on the periphery of the sleeve body, and an extrusion sleeve is sleeved in the embedded groove. The thickness of the extrusion sleeve is greater than the embedded groove, and the extended part is 4-8 mm.

[0012] Furthermore, an auxiliary rotation hole is opened on the periphery of the positioning plate, and the auxiliary rotation hole is adapted for use with an "L"-shaped extended lever arm handle.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By adding a positioning plate and a resistance pad, and using a threaded connection at one end of the sleeve body, the wall sleeve can be tightened by the positioning plate and the mounting plate when subjected to vibration, effectively preventing loosening or displacement, thereby greatly enhancing the stability of the wall sleeve.

[0015] 2. The threaded connection design between the positioning plate and the sleeve body allows the installer to rotate and fix the positioning plate after fixing the installation plate, ensuring that the convenience of installation is not affected. At the same time, the setting of the auxiliary rotation hole can ensure that the positioning plate is tighter and more stable through the "L"-shaped extended force arm handle.

[0016] By enhancing the stability of the wall bushing, the risk of damage or displacement of the insulation material due to vibration is reduced, thereby ensuring the insulation performance of the wall bushing and reducing the risk of electrical failure or short circuit. Due to the enhanced stability and improved insulation performance of the wall bushing, the safety of the entire high-voltage switchgear system is significantly improved, reducing the risk of personnel and equipment damage caused by wall bushing problems.

[0017] At the same time, the design of the embedded groove and extrusion sleeve further enhances the tightness of the connection between the wall bushing and the high-voltage switchgear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a wall bushing for a high-voltage switch cabinet provided by the utility model;

[0019] Figure 2 This is a schematic diagram of the bushing body structure of a wall bushing for a high-voltage switch cabinet provided by the utility model;

[0020] Figure 3 The utility model provides an enlarged schematic diagram of structure A of a wall bushing for a high-voltage switch cabinet.

[0021] Legend:

[0022] 1. Casing body; 11. External thread; 12. Internal groove; 13. Extrusion sleeve;

[0023] 2. Install the fixing plate; 21. Fixing hole;

[0024] 3. Positioning plate; 31. Internal thread; 32. Auxiliary rotation hole;

[0025] 4. Resistance pad. DETAILED DESCRIPTION

[0026] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Example 1

[0031] like Figure 1-3 As shown, the utility model provides a technical solution: a wall bushing for a high-voltage switch cabinet, comprising a bushing body 1 and a mounting plate 2 integrally arranged in the middle section of the bushing body 1, the mounting plate 2 being fixed on the inner wall of one side of an adjacent high-voltage switch cabinet, and being connected to the corresponding adapter mounting hole of the adjacent high-voltage switch cabinet through the bushing body 1, an end of the bushing body 1 away from the mounting plate 2 is threadedly connected to a positioning plate 3 near the side wall of the high-voltage switch cabinet, and a contact pad 4 is provided on the positioning plate 3 facing the side wall of the high-voltage switch cabinet, and the contact pad 4 is squeezed against the side wall of the high-voltage switch cabinet by rotating the positioning plate 3, and then the side wall of the adjacent high-voltage switch cabinet is squeezed and fixed in cooperation with the mounting plate 2.

[0032] Example 2

[0033] like Figure 1-3 As shown, the positioning plate 3 is made of the same material as the sleeve body 1, and the resistance pad 4 is bonded to the positioning plate 3 and made of rubber material, making the resistance tighter and more stable.

[0034] A fixing hole 21 is provided at a corner of the fixing plate 2 , and the fixing plate 2 is installed in a pre-opened hole on the side wall of the high-voltage switch cabinet through a fixing screw in the fixing hole 21 .

[0035] The inner diameter of the positioning plate 3 is provided with an internal thread 31, and the outer periphery of the bushing body 1 is provided with an external thread 11, and then the internal thread 31 and the external thread 11 are adapted to be connected for displacement adjustment. Before installation, the positioning plate 3 is first removed and then passed through the installation hole opened on the high-voltage switch cabinet.

[0036] An embedded groove 12 is provided between the external thread 11 and the mounting plate 2 and on the periphery of the sleeve body 1 . An extrusion sleeve 13 is sleeved in the embedded groove 12 . The thickness of the extrusion sleeve 13 is greater than that of the embedded groove 12 , and the extended portion is 4-8 mm.

[0037] An auxiliary rotation hole 32 is opened on the periphery of the positioning plate 3, and the auxiliary rotation hole 32 is adapted to be used with an "L"-shaped extended lever arm handle. The "L"-shaped extended lever arm handle serves as an auxiliary tool to assist the installer in fixing and tightening the positioning plate 3.

[0038] When the bolt 1 is in the air, it is rotated to the left of the bolt 1 and the bolt 1 is in the air, so that the bolt 1 is in the air.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wall bushing for a high-voltage switch cabinet, comprising a bushing body (1) and a mounting plate (2) integrally provided in the middle section of the bushing body (1), wherein the mounting plate (2) is fixed to the inner wall of one side of an adjacent high-voltage switch cabinet and connected to a correspondingly provided adapter mounting hole of the adjacent high-voltage switch cabinet through the bushing body (1), characterized in that: The end of the bushing body (1) away from the mounting fixing plate (2) is threadedly connected to a positioning plate (3) near the side wall of the high-voltage switch cabinet. The positioning plate (3) is provided with a resistance pad (4) facing the side wall of the high-voltage switch cabinet. By rotating the positioning plate (3), the resistance pad (4) presses the side wall of the high-voltage switch cabinet, and then cooperates with the mounting fixing plate (2) to press and fix the side wall of the adjacent high-voltage switch cabinet.

2. The wall bushing for high-voltage switchgear according to claim 1, characterized in that: The positioning disc (3) is made of the same material as the sleeve body (1), and the abutment pad (4) is bonded to the positioning disc (3) and is made of rubber material.

3. The wall bushing for high-voltage switchgear according to claim 1, characterized in that: A fixing hole (21) is provided at a corner of the mounting fixing plate (2), and the fixing plate (2) is installed in a pre-opened hole on the side wall of the high-voltage switch cabinet through a fixing screw in the fixing hole (21).

4. The wall bushing for high-voltage switchgear according to claim 1, characterized in that: The inner diameter of the positioning plate (3) is provided with an internal thread (31), and the outer periphery of the sleeve body (1) is provided with an external thread (11), so that the internal thread (31) and the external thread (11) are adapted to be connected for displacement adjustment.

5. The wall bushing for high-voltage switchgear according to claim 4, characterized in that: An embedded groove (12) is provided between the external thread (11) and the mounting plate (2) and on the periphery of the sleeve body (1). An extrusion sleeve (13) is sleeved in the embedded groove (12). The thickness of the extrusion sleeve (13) is greater than that of the embedded groove (12), and the extended portion is 4-8 mm.

6. The wall bushing for high-voltage switchgear according to claim 1, characterized in that: An auxiliary rotation hole (32) is provided on the periphery of the positioning plate (3), and the auxiliary rotation hole (32) is adapted for use with an "L"-shaped extended lever arm handle.

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