Wiring terminal with screw loosening alarming function

A technology of prompt function and terminal, applied in the direction of connection, electrical connection seat, clamping/spring connection, etc., can solve problems such as being difficult to detect and inconvenient for maintenance, and achieve the effect of reducing labor intensity and improving work efficiency.

Active Publication Date: 2018-01-12
国网河南省电力公司内乡县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device reduces screw looseness by increasing the friction between the screw and the n

Method used

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  • Wiring terminal with screw loosening alarming function
  • Wiring terminal with screw loosening alarming function
  • Wiring terminal with screw loosening alarming function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a connection terminal with a screw loosening prompt function includes a terminal base 1, wherein a threaded hole 2 is provided on the terminal base, and a matching pressing screw 3 is provided in the threaded hole 2, and the right side wall of the terminal base 1 is provided The wire inlet 4, the wire 11 passes through the wire inlet 4 and is compressed by the compression screw 3.

[0028] The left side wall of the terminal base 1 is provided with a longitudinal groove 5, wherein the bottom of the longitudinal groove 5 is provided with a transverse groove 6 communicating with it, and the right side of the transverse groove 6 is connected with the threaded hole 2, and a pressure plate 8 is arranged in the transverse groove 6, and the transverse groove 6 The left side wall of groove 6 is fixed with spring 7, and spring 7 is connected with pressing plate 8, and the left side of pressing plate 8 is fixed mobile plate 9, and mobile plate 9 is posit...

Embodiment 2

[0039] Embodiment 2 is basically the same structure as Embodiment 1, the difference is: as Figure 4 As shown, the inner wall of the terminal block 1 is provided with a pressing block 12, and the pressing block 12 is threadedly connected with the inner wall of the terminal block 1. This structure can further compress the pressing screw 3 through the pressing block 12 to reduce the loosening of the sending screw.

[0040] The insulating paint is sprayed on the pressing plate, wherein the insulating paint is prepared from the following raw materials in parts by weight: 68 parts of epoxy resin, 14 parts of silica sol, 9 parts of mica powder, 0.7 part of KH550, 17 parts of nano filler, 8 parts of rosin powder, 12 parts 3 parts of sodium alkyl sulfate, 4 parts of polyethylene glycol octyl phenyl ether, 35 parts of solvent, 0.65 part of curing agent and 0.4 part of defoamer.

[0041] The solvent is a mixture of ethanol and toluene at a volume ratio of 1:1.5; the nano-filler is a mix...

Embodiment 3

[0047] The connection terminal structure of embodiment 3 is the same as that of embodiment 1, the difference is:

[0048] The insulating coating is sprayed on the press plate, wherein the insulating coating is prepared from the following raw materials in parts by weight: 70 parts of epoxy resin, 13 parts of silica sol, 10 parts of mica powder, 0.8 part of KH550, 16 parts of nano filler, 9 parts of rosin powder, 12 parts 4 parts of sodium alkyl sulfate, 3 parts of polyethylene glycol octyl phenyl ether, 38 parts of solvent, 0.7 part of curing agent and 0.3 part of defoamer.

[0049] The solvent is a mixture of ethanol and toluene at a volume ratio of 1:1.5; the nano-filler is a mixture of nano-titanium dioxide and nano-silicon nitride at a weight ratio of 2:1.

[0050] The preparation method of insulating coating comprises the following steps:

[0051] (1) Dissolve mica powder, KH550, nano filler, sodium lauryl sulfate and polyethylene glycol octylphenyl ether in some solvents...

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Abstract

The invention discloses a wiring terminal with a screw loosening alarming function and belongs to the technical field of power wiring terminals. The wiring terminal with the screw loosening alarming function comprises a terminal seat, the terminal seat is provided with a threaded hole, inside which a press screw is arranged, the right wall of the terminal seat is provided with a wire hole, and theleft wall of the terminal seat is provided with a longitudinal groove; the bottom of the longitudinal groove is provided with a transverse groove communicated with the longitudinal groove, the rightof the transverse groove is communicated with the threaded hole, the inside of the transverse groove is provided with a press plate, the left wall of the transverse groove is fixedly provided with a spring which is connected with the press plate, and the left of the press plate is fixedly provided with a moving plate which is arranged inside the longitudinal groove. A maintainer can determine whether the screw is loose by observing the position of the moving plate and a top plate and further fasten the screw, so that the working efficiency can be greatly improved; besides, the press plate is painted with insulating coating which is good in insulating performance and excellent in mechanical performance, so that the service life as well as safety of the wiring terminal with the screw loosening alarming function can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of power connection terminals, in particular to a connection terminal with a screw loosening prompt function. Background technique [0002] Terminals are frequently used accessories in power systems. Maintenance personnel need to use a screwdriver to tighten the screws on the terminals one by one during inspection and maintenance. Loose screws can be tightened easily. Using force will often twist the terminal block, causing the equipment to fail to transmit power in time. This inspection method is not only time-consuming, laborious and inefficient, but also increases the labor intensity of maintenance personnel. The terminal blocks used in the prior art generally include a terminal block, a wire extending into the terminal block, and a compression screw that compresses the wire. When the compression screw and the wire are subjected to oxidation or external vibration after passing through, There will be loos...

Claims

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Application Information

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IPC IPC(8): H01R11/26H01R4/36H01R13/645
Inventor 高乐天周书军任江生孙莹陈思张运琦樊小星
Owner 国网河南省电力公司内乡县供电公司
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