Nickel alloy styrene-butadiene rubber pressing plate provided with facade circular rails and four adjustable edges

Abstract

The invention relates to a glass test device and provides a nickel alloy styrene-butadiene rubber pressing plate provided with facade circular rails and four adjustable edges.The nickel alloy styrene-butadiene rubber pressing plate comprises a first pressing plate body, a second pressing plate body, a third pressing plate body and a fourth pressing plate body which are the same in structure and size, each pressing plate body is composed of a clamping portion and a sliding portion, as improvement, the sliding portion on each pressing plate comprises a sliding lower plane, an upright plate inner side face and a circular protruding rail, the upright plate inner side faces are provided with the circular protruding rails, and a transition rail is arranged between the corresponding circular protruding rail and the corresponding upright plate inner side face; a self-lubricating bush is provided with a bush outer circular arc, a bush inner circular arc and a bush fixing face, and each bush fixing plate is provided with two countersunk through holes, a fixing plate contact face and a fixing plate clearance edge; four fixing plate screws penetrate through the countersunk through holes in the two bush fixing plates and are in screw fastening fit with trough screw holes respectively, and the fixing plate contact faces are fixed to a clamping facade; the fixing plate contact faces tightly press the bush fixing face at the same time, and the self-lubricating bush is fixed into a circular arc trough.

Description

technical field [0001] The invention relates to a glass testing pressure plate, classification number: G01N3 / 04, in particular to such a four-sided adjustable styrene-butadiene rubber pressure plate with a circular track on the facade that can be enlarged or reduced for testing the strength of glass. Background technique [0002] The existing tempered glass fragment test method is to place the tempered glass sample freely on the test bench, and use scotch tape paper or other methods to constrain the glass periphery, or cover the tempered glass with a film to prevent the glass fragments from splashing. On the center line of the longest side of the sample, at a position about 20mm away from the periphery, impact with a pointed hammer or punch with a tip curvature radius of 0.2mm±0.05mm to break the sample, within 20mm of the edge of the product and at the point of impact The number of fragments within a circle with a radius of 75 mm is not checked. Measures to preserve the ...

AI Technical Summary

Problems solved by technology

This method is not only inconvenient to operate, but takes a long time, and the tape is a disposable product, which is easy to cause waste and pollution, and the tape residue on the test bench must be removed after each test to remove the broken glass, otherwise , the remaining glass fragments will affect the next experimental test operation

[0003] At the same time, the adhesive tape is also likely to be broken by the force of the tempered glass explosion, causing the operator to be injured. Therefore, it is very necessary to improve the tempered glass fragment test device

[0004] Chinese patent application number: 201420595067.X, test device for tempered glass shards, proposed some new methods and measures to deal with the pressing plate of brittle glass, but it is still impossible to adjust the size at will, and it is impossible to make the four sides of the retaining walls all in the same on flat surface

At least one side of the patent must not be in contact with the test bench surface

What is referred to as the suspended retaining wall 5 in the embodiment cannot be in contact with the base 1 simultaneously with other three-sided retaining walls, so the retaining piece 4 has to be used to make up the gap between the suspended retaining wall 5 and the base 1, resulting in four Uneven surrounding force

In addition, the width of the baffle 4 itself is fixed, and only multi-piece splicing can be used, and continuous changes of different widths cannot be achieved.

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