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Shock-proof expansion joint

An expansion joint, anti-electric shock technology, applied in circuits, electrical components, conductive connections, etc., can solve the problems of small temperature rise and pressure drop, poor safety of expansion joints, temperature rise and pressure drop, etc. Small rise and pressure drop, good safety effect

Active Publication Date: 2018-07-17
杭州博洛尼电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an anti-shock expansion joint with good safety and small temperature rise and pressure drop, which solves the problems of poor safety and high temperature rise and pressure drop in the existing expansion joints

Method used

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  • Shock-proof expansion joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one, see figure 1 , an electric shock-proof expansion joint, including a connecting section 1. The connecting section 1 is formed by splicing copper strips 11 with a thickness of less than 0.15 mm. The connecting section 1 is provided with an insulating fireproof sleeve 2 . Both ends of the connecting section 1 are provided with fixing heads 3 . The fixing head 3 includes a connection segment end 31 , a copper sheet 32 ​​and a conductive sleeve 33 . There are two copper sheets 32. The thickness of the copper sheet 32 ​​is more than 0.8 mm. The two copper sheets 32 clamp the end 31 of the connecting section 1 along the thickness direction of the connecting section 1 . The conductive sleeve 33 is sleeved on the two copper sheets 32 at the same time. The conductive sleeve 33, the copper sheet 32 ​​and the end portion 31 of the connection section are welded together by high temperature molecular diffusion welding.

[0020] When in use, the present inventio...

Embodiment 2

[0021] Embodiment two, the difference with embodiment one is:

[0022] see figure 2 , The fixed head 3 is provided with a number of connecting through holes. Bolts 4 are pierced through the connecting through holes. The bolt 4 is connected with a nut 8 . The diameter of the connecting through hole is less than 1 millimeter larger than the nominal diameter of the bolt 4.

[0023] During use, by unscrewing the nut 8, after the bolt passes through the connection hole of the installation part, then screw the nut 8 to lock.

Embodiment 3

[0024] Embodiment three, the difference with embodiment two is:

[0025] see image 3 , the nut 8 includes a nut body 81 and a thread alignment maintaining mechanism 82 . The nut body 81 includes a main body section 811 and a backstop section 812 . The outer end of the main body section 811 is provided with a large diameter section 813 . A pendulum groove 814 is provided on the peripheral wall of the large-diameter section 813 . The backstop section 812 is provided with a swing head 815 . The anti-retraction section 812 is rotatably installed in the large-diameter section 813 . The swing head 815 is plugged into the swing groove 814 .

[0026] The thread alignment maintaining mechanism 82 includes a plug 821 and a plug driving mechanism 822 . The plug 821 is disposed in the backstop section 812 . The plug driving mechanism 822 includes a first driving column 8221 and a second driving column 8222 . The first driving column 8221 and the second driving column are arranged...

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PUM

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Abstract

The invention relates to an expansion joint, particularly to an anti-electric-shock expansion joint comprising a connecting segment. Fixation heads are arranged at the two ends of the connecting segment. The connecting segments is formed by splicing of copper belts with thicknesses below 0.15 millimeters. An insulating fire-proof sleeve sleeves the connecting segment. Each fixation head includes two copper sheets and a conductive sleeve sleeving the outsides of the two copper sheets, wherein the copper sheets clamp the end portion of the connecting segment along the thickness direction of the connecting segment and have the thicknesses above 0.8 millimeters; and the conductive sleeve, the copper sheets and the end portions of the connecting segments are welded together. According to the invention, the anti-electric-shock expansion joint has advantages of high security and low temperature rise drop; and problems of poor security and high temperature rise drop of the existing expansion joint can be solved.

Description

technical field [0001] The invention relates to an expansion joint, in particular to an electric shock-proof expansion joint. Background technique [0002] According to the relevant requirements, the connection between the transformer column head and the low-voltage cabinet must adopt a soft connection, and an expansion joint is designed for this purpose. An existing telescopic joint is disclosed in a patent document with Chinese patent No. 2013200394076, authorized announcement No. CN203026873U, and titled "A Copper-Aluminum Busbar Expansion Joint". The basic structure of the expansion joint includes a connecting section, and the two ends of the connecting section are provided with fixing heads, which are installed through the fixing heads when in use. The existing expansion joints have the following disadvantages: the connecting section is in a bare state, and the safety is poor; the temperature rise and pressure drop are high. Contents of the invention [0003] The in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R11/01H01R11/09H01R4/30
CPCH01R4/302H01R11/01H01R11/09
Inventor 高尔尹张玲仙李振领
Owner 杭州博洛尼电气有限公司