Multilayer tubular bus structure

Abstract

The utility model relates to the technical field of tubular busbars, in particular to a multi-layer tubular busbar structure, which comprises a first busbar conduit and a second busbar conduit, an isolating layer is sleeved between the inner wall of the first busbar conduit and the outer wall of the second busbar conduit, a sleeve is arranged in a pipe groove of the second busbar conduit, and the inner wall of the first busbar conduit is sleeved with the isolating layer. And the first bus conduit is coated with an outer skin layer. According to the utility model, the first bus conduit, the second bus conduit, the sleeve, the fixing column, the conducting bar and the clamping plate are used in cooperation, the fixing column is sleeved from one end of the sleeve, the fixing column extrudes the conducting bar along with the sleeving of the fixing column, and the clamping plate abuts against the inner wall of the second bus conduit when the conducting bar moves towards the outer side. After the fixing column is completely sleeved with the sleeve, the four clamping plates reversely clamp and support the isolation layer and the first bus conduit from the inner wall of the second bus conduit, so that after supporting and isolation, the structural stability is high, and contact of a plurality of buses cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular busbars, in particular to a multi-layer tubular busbar structure. Background Art

[0002] The tubular busbar is a commonly used conductive device in power transmission systems. It is usually composed of a metal pipe and is used to transmit electric energy from a power station to various users or between different power stations. The tubular busbar is usually used in medium and high voltage power transmission systems. Its advantages include lower resistance, lower inductance and higher current capacity. This allows the tubular busbar to reduce energy loss during power transmission and can withstand a larger current load. In addition, the tubular busbar also has good mechanical strength and corrosion resistance, which enables it to operate stably under various environmental conditions.

[0003] The structure of the existing multi-layer tubular busbars on the market is relatively complex, and supporting components need to be installed at both ends of the multi-layer tubular busbars to isolate the multi-layer tubular busbars. However, the supporting components are only used at the ends of the tubular busbars, resulting in poor support stability in the middle of the tubular busbar. If the middle of the tubular busbar is over-pressurized, it is easy to cause the middle positions of multiple tubular busbars to contact, thereby affecting circuit safety. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-layer tubular busbar structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-layer tubular busbar structure comprises a first busbar duct and a second busbar duct, an isolation layer is sleeved between the inner wall of the first busbar duct and the outer wall of the second busbar duct, a sleeve is arranged in the pipe groove of the second busbar duct, and the outer part of the first busbar duct is covered with an outer skin layer; a fixing column is sleeved in the middle part of the sleeve, four guide bars are movably mounted on the outer wall of the sleeve, the other ends of the four guide bars are all integrally formed with a clamping plate, and the outer side of the clamping plate is movably connected to the inner wall of the second busbar duct.

[0007] Preferably, the outer wall of the fixing column is movably connected to the side of the guide bar away from the clamping plate, and a clamping mechanism is provided between the fixing column and the guide bar;

[0008] Preferably, the clamping mechanism is composed of a clamping block and a clamping slot, a plurality of clamping blocks are arranged equidistantly from left to right on the outer wall of the fixing column, and a plurality of clamping slots are arranged on one side of the four guide bars close to the clamping block;

[0009] Preferably, the isolation layer uses a rubber insulating tube;

[0010] Preferably, the outer skin layer is made of polyvinyl chloride, polyethylene or polyurethane;

[0011] Preferably, the first busbar duct and the second busbar duct are made of copper tubes or aluminum tubes.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A multi-layer tubular busbar structure is used in combination with a first busbar duct, a second busbar duct, a sleeve, a fixing column, a guide bar and a clamping plate. The fixing column is inserted from one end of the sleeve. As the fixing column is inserted, the fixing column squeezes the guide bar. When the guide bar moves outward, the clamping plate abuts against the inner wall of the second busbar duct. When the fixing column is completely inserted into the sleeve, four clamping plates reversely clamp and support the isolation layer and the first busbar duct from the inner wall of the second busbar duct. After support and isolation, the structure has high stability and does not cause contact between multiple busbars.

[0014] 2. A multi-layer tubular busbar structure, in which a clamping block is provided on the outer wall of the fixed column, and a clamping groove is provided on the side of the guide bar close to the fixed column. The shapes of the clamping block and the clamping groove match each other. When the fixed column is sleeved inside the sleeve, the clamping block will be clamped in the clamping groove, so that the fixed column can be locked in the sleeve through the clamping block and the clamping groove. After installation, no displacement will occur between the fixed column and the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 For the utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0019] In the figure: 1, first bus duct; 2, second bus duct; 3, isolation layer; 4, sleeve; 5, outer skin layer; 6, fixing column; 7, guide bar; 8, clamping plate; 9, clamping block; 10, clamping slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0022] A multi-layer tubular busbar structure, comprising a first busbar conduit 1 and a second busbar conduit 2, wherein the first busbar conduit 1 and the second busbar conduit 2 are made of copper tubes or aluminum tubes, an isolation layer 3 is sleeved between the inner wall of the first busbar conduit 1 and the outer wall of the second busbar conduit 2, the isolation layer 3 is made of a rubber insulating tube, a sleeve 4 is arranged in the pipe groove of the second busbar conduit 2, the outer surface of the first busbar conduit 1 is covered with an outer skin layer 5, and the outer skin layer 5 is made of polyvinyl chloride, polyethylene or polyurethane; a fixing column 6 is sleeved in the middle of the sleeve 4, four guide bars 7 are movably mounted on the outer wall of the sleeve 4, the other ends of the four guide bars 7 are all integrally formed with a clamping plate 8, and the outer side of the clamping plate 8 is movably connected to the inner wall of the second busbar conduit 2;

[0023] In this embodiment, during installation, the isolation layer 3 is first inserted from the inner side of the first bus duct 1, and then the second bus duct 2 is inserted from the inner side of the isolation layer 3, and then the sleeve 4 together with the clamping plate 8 is inserted into the inner side of the second bus duct 2, and then the fixing column 6 is inserted from one end of the sleeve 4. As the fixing column 6 is inserted, the fixing column 6 will squeeze the guide bar 7, and the guide bar 7 will abut the clamping plate 8 against the inner wall of the second bus duct 2 when moving outward. When the fixing column 6 is completely inserted into the sleeve 4, the four clamping plates 8 reversely clamp and support the isolation layer 3 and the first bus duct 1 from the inner wall of the second bus duct 2. After such support and isolation, the structure has high stability and will not cause multiple busbars to contact.

[0024] like Figure 4 As shown, the outer wall of the fixed column 6 is movably connected to the side of the guide bar 7 away from the clamping plate 8, and a clamping mechanism is provided between the fixed column 6 and the guide bar 7. The clamping mechanism consists of a clamping block 9 and a clamping groove 10. A plurality of clamping blocks 9 are arranged equidistantly from left to right on the outer wall of the fixed column 6, and a plurality of clamping grooves 10 are provided on the side of the four guide bars 7 close to the clamping block 9;

[0025] In this embodiment, the device is provided with a clamping block 9 on the outer wall of the fixed column 6, and a clamping groove 10 is provided on the side of the guide bar 7 close to the fixed column 6. The shapes of the clamping block 9 and the clamping groove 10 match. When the fixed column 6 is sleeved in the sleeve 4, the clamping block 9 will be clamped in the clamping groove 10. In this way, the fixed column 6 can be locked in the sleeve 4 by the clamping block 9 and the clamping groove 10. After installation, no displacement will occur between the fixed column 6 and the sleeve 4.

[0026] Working principle: During installation, first insert the isolation layer 3 from the inner side of the first bus duct 1, and then insert the second bus duct 2 from the inner side of the isolation layer 3, then insert the sleeve 4 together with the clamping plate 8 into the inner side of the second bus duct 2, and then insert the fixing column 6 from one end of the sleeve 4. When the fixing column 6 is sleeved inside the sleeve 4, the clamping block 9 will be clamped in the clamping groove 10, so that the fixing column 6 can be locked in the sleeve 4 through the clamping block 9 and the clamping groove 10. As the fixing column 6 is inserted, the fixing column 6 will squeeze the guide bar 7, and when the guide bar 7 moves outward, the clamping plate 8 will abut against the inner wall of the second bus duct 2. When the fixing column 6 is completely inserted into the sleeve 4, the four clamping plates 8 reversely clamp and support the isolation layer 3 and the first bus duct 1 from the inner wall of the second bus duct 2.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multi-layer tubular busbar structure, characterized in that: include A first bus duct (1) and a second bus duct (2), wherein an isolation layer (3) is provided between the inner wall of the first bus duct (1) and the outer wall of the second bus duct (2), a sleeve (4) is provided in the pipe groove of the second bus duct (2), and the outside of the first bus duct (1) is covered with an outer skin layer (5); A fixing column (6) is sleeved in the middle of the sleeve (4), and four guide bars (7) are movably mounted on the outer wall of the sleeve (4). A clamping plate (8) is integrally formed at the other end of each of the four guide bars (7), and the outer side of the clamping plate (8) is movably connected to the inner wall of the second busbar duct (2).

2. A multi-layer tubular busbar structure according to claim 1, characterized in that: The outer wall of the fixing column (6) is movably connected to the side of the guide bar (7) away from the clamping plate (8), and a clamping mechanism is provided between the fixing column (6) and the guide bar (7).

3. A multi-layer tubular busbar structure according to claim 2, characterized in that: The clamping mechanism is composed of a clamping block (9) and a clamping slot (10); a plurality of clamping blocks (9) are arranged equidistantly from left to right on the outer wall of the fixing column (6); and a plurality of clamping slots (10) are arranged on one side of the four guide bars (7) close to the clamping block (9).

4. A multi-layer tubular busbar structure according to claim 1, characterized in that: The isolation layer (3) uses a rubber insulating tube.

5. The multi-layer tubular busbar structure according to claim 1, characterized in that: The outer skin layer (5) is made of polyvinyl chloride, polyethylene or polyurethane.

6. A multi-layer tubular busbar structure according to claim 1, characterized in that: The first busbar duct (1) and the second busbar duct (2) are made of copper tubes or aluminum tubes.

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