Self-adaptive thermal expansion joint for intensive bus duct

Abstract

The utility model relates to the technical field of telescopic joints, in particular to an intensive bus duct self-adaptive thermal expansion telescopic joint which comprises a shell, a plurality of insulating spacers are arranged in the shell, and two wire rows and a conductive connecting piece are arranged among the insulating spacers. The wire rows are provided with connecting ports matched with the two ends of the conductive connecting pieces in shape, each conductive connecting piece is provided with two attaching faces, the side wall of one side of each connecting port is an anti-falling face, and the top ends of the conductive connecting pieces are movably provided with two inserting mechanisms. According to the application, the cover plate is pressed to move linearly downwards until the insertion rod is inserted into the insertion groove in the bump, at the moment, the attaching plate moves and is attached to the attaching surface of the conductive connecting sheet, the L-shaped positioning plate is guided to be attached to the side wall of the conductive connecting sheet, and the insertion rod is pushed to be inserted into the positioning hole in the insertion rod; and the conductive connecting sheet can be quickly positioned and mounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of telescopic joint, concretely is dense bus duct self -adaptation thermal expansion telescopic joint. BACKGROUND

[0002] As a kind of efficient power transmission equipment, dense bus duct can optimize bus width-thickness ratio design, significantly improve power transmission efficiency, reduce cable cost, and in the process of installing dense bus duct, it needs to be connected with bus in dense bus duct using telescopic joint, and telescopic joint made of copper or aluminum material has axial, transverse and angular displacement caused by temperature change during use, which avoids mechanical stress caused by thermal expansion and cold shrinkage, which causes bus to be damaged by excessive stretching.

[0003] When telescopic joint is connected with bus, it is often directly connected together by screw rod and nut cooperation, and each telescopic joint needs to be connected by at least two screw rods and two nuts when two ends are connected with bus, and screw rod needs to be simultaneously penetrated through bus and telescopic joint from one end of telescopic joint during installation, and then fixed by nut, but since there are many buses on dense bus duct and the internal space is relatively narrow, it is not convenient to install and operate quickly, and the installation efficiency is relatively low. UTILITY MODEL CONTENT

[0004] The utility model aims at providing dense bus duct self-adapting thermal expansion telescopic joint to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: dense bus duct self-adapting thermal expansion telescopic joint, including shell, the shell is provided with several insulating spacers, two wire rows and a conductive connecting piece are arranged between the several insulating spacers, the wire row is provided with the connecting port matched with the shape of both ends of conductive connecting piece, the conductive connecting piece is provided with two sticking surfaces, the side wall of connecting port is the anti-drop surface, the top of several conductive connecting pieces is movably provided with two plug-in mechanisms.

[0006] Preferably, the plug-in mechanism includes cover plate, the cover plate is fixedly provided with sticking plate matched with sticking surface, the cover plate is also fixedly provided with L-shaped positioning plate, the cover plate is provided with through hole, and plug-in rod is movably inserted into the through hole.

[0007] Preferably, the anti-drop surface is provided with protruding block, the top of protruding block is provided with extension block, the extension block is provided with through hole, and plug-in rod is movably inserted into the through hole of extension block.

[0008] Preferably, the top end of the convex block is provided with an insertion groove, and the diameter of the insertion groove on the convex block is the same as the diameter of the insertion rod.

[0009] Preferably, the top end of the shell is provided with a baffle, which can be used as a cover for the opening of the top end of the shell.

[0010] Preferably, the outer wall of the insertion rod is provided with a positioning hole, and the diameter of the positioning hole is the same as the diameter of the insertion rod.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] By pressing the cover plate to move downwardly in a straight line until the insertion rod is inserted into the insertion groove on the convex block, the fitting plate is moved and fitted onto the fitting surface on the conductive connecting piece, and the L-shaped positioning plate is guided to fit the side wall of the conductive connecting piece and push the insertion rod to be inserted into the positioning hole on the insertion rod, so that the positioning and installation of the conductive connecting piece can be quickly performed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0014] Figure 2 It is a schematic diagram of the conductive connecting piece installation structure of the present application;

[0015] Figure 3 It is a schematic diagram of the insertion mechanism structure of the present application;

[0016] Figure 4 It is a schematic diagram of the insertion mechanism structure of the present application; Figure 3 It is an enlarged schematic diagram of structure A in the present application.

[0017] In the figure: 1, shell; 2, baffle; 3, wire row; 4, insulating spacer; 5, connecting port; 6, anti-dropping surface; 7, convex block; 8, extension block; 9, insertion rod; 10, conductive connecting piece; 11, fitting surface; 12, insertion mechanism; 13, cover plate; 14, fitting plate; 15, L-shaped positioning plate; 16, insertion rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1 to 4The utility model provides a technical scheme: intensive bus duct self -adaptation thermal expansion expansion joint, including the casing 1, the casing 1 is provided with a plurality of insulating septum 4, insulating septum 4 all are made of crosslinked polyethylene in prior art, play insulating heat -proof effect, a plurality of insulating septum 4 all are provided with two wire row 3, a conductive connecting piece 10, the both ends of conductive connecting piece 10 are made of hard copper row, two hard copper row is connected through copper foil, play the role of expansion piece, because copper has the relatively superior self -adaptation thermal expansion function, avoid the impact of the connecting stress of bus joint caused by thermal expansion, wire row 3 all are provided with the connecting port 5 matched with the both ends of conductive connecting piece 10 modeling, the both ends of conductive connecting piece 10 are placed in the connecting port 5 on wire row 3 respectively, facilitate the butt joint installation of conductive connecting piece 10, conductive connecting piece 10 all are provided with two sticking surfaces 11, the side wall of connecting port 5 is the anti -drop surface 6, the top of a plurality of conductive connecting pieces 10 all movably install two plug -in mechanisms 12.

[0020] Plug-in mechanism 12 includes cover plate 13, cover plate 13 is fixedly installed with the sticking plate 14 adapted to sticking surface 11, cover plate 13 is also fixedly installed with L type positioning plate 15, cover plate 13 is provided with through hole, and plug-in rod 16 is movably inserted in the through hole, anti -drop surface 6 is provided with lug 7, the top of lug 7 is provided with extension block 8, extension block 8 is provided with through hole, and plug-in rod 9 is movably inserted in the through hole on extension block 8, plug-in rod 9 is made of iron bar, lug 7 top is provided with plug-in recess, and the diameter size of plug-in recess on lug 7 is same with the diameter size of plug-in rod 16, positioning hole is formed on the outer wall of plug-in rod 16, and the diameter size of positioning hole is same with the diameter size of plug-in rod 9, after placing conductive connecting piece 10 in connecting port 5, make sticking plate 14 stick to the sticking surface 11 on conductive connecting piece 10, and L type positioning plate 15 needs to stick to the side wall of conductive connecting piece 10 and press cover plate 13 to move linearly downwards until plug-in rod 16 is inserted into the plug-in recess on lug 7, at this time, plug-in rod 9 is inserted into the positioning hole on plug-in rod 16, the position of conductive connecting piece 10 can be fixed, and when disassembling later, plug-in rod 9 is attracted by magnet and extracted from the positioning hole on plug-in rod 16, then the whole plug-in mechanism 12 is pulled to move upward, and then the conductive connecting piece 10 is taken out.

[0021] The top of casing 1 is provided with baffle 2, baffle 2 can be used as the cover of casing 1 top opening, convenient for opening casing 1 to check the use condition of conductive connecting piece 10 to judge whether it needs to be replaced.

[0022] Working principle: when using, the two ends of the conductive connecting piece 10 are respectively put into the two wire rows 3 and the connecting port 5 matched with it, the guide lamination plate 14 is moved and laminated to the lamination surface 11 on the conductive connecting piece 10, and the L-shaped positioning plate 15 is laminated to the side wall of the conductive connecting piece 10, then the cover plate 13 is pressed to move linearly downward until the insertion rod 16 is inserted into the insertion groove on the protrusion 7, at this time the insertion rod 9 is inserted into the positioning hole on the insertion rod 16, and the position of the conductive connecting piece 10 can be fixed.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A compact busbar adaptive thermal expansion joint, comprising a housing (1), characterized in that: The housing (1) is provided with a plurality of insulating spacers (4). Two wires (3) and a conductive connecting piece (10) are provided between each of the plurality of insulating spacers (4). Each wire (3) is provided with a connection port (5) that matches the shape of both ends of the conductive connecting piece (10). Each conductive connecting piece (10) is provided with two mating surfaces (11). One side wall of the connection port (5) is an anti-detachment surface (6). Two insertion mechanisms (12) are movably installed on the top of each of the plurality of conductive connecting pieces (10).

2. The adaptive thermal expansion joint for dense busbar trunking according to claim 1, characterized in that: The insertion mechanism (12) includes a cover plate (13), on which a fitting plate (14) adapted to the fitting surface (11) is fixedly installed. An L-shaped positioning plate (15) is also fixedly installed on the cover plate (13). A through hole is provided on the cover plate (13), and an insertion rod (16) is movably inserted into the through hole.

3. The adaptive thermal expansion joint for dense busbar trunking according to claim 1, characterized in that: The anti-detachment surface (6) is provided with a protrusion (7), the top of the protrusion (7) is provided with an extension block (8), the extension block (8) is provided with a through hole, and an insert rod (9) is movably inserted into the through hole of the extension block (8).

4. The high-density busbar adaptive thermal expansion joint according to claim 3, characterized in that: The top of the protrusion (7) is provided with an insertion groove, and the diameter of the insertion groove on the protrusion (7) is the same as the diameter of the insertion rod (16).

5. The adaptive thermal expansion joint for dense busbar trunking according to claim 1, characterized in that: A baffle (2) is provided at the top of the housing (1), and the baffle (2) can be used to cover the opening at the top of the housing (1).

6. The adaptive thermal expansion joint for dense busbar trunking according to claim 2, characterized in that: The outer wall of the insertion rod (16) is provided with a positioning hole, and the diameter of the positioning hole is the same as the diameter of the insertion rod (9).

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