Expansion and contraction rate testing device and method for flat belt and high-place operation safety belt

A technology of testing device and testing method, which is applied in the direction of measuring device, using stable tension/pressure testing material strength, instruments, etc., can solve the problem of insufficient awareness of shrinkage performance, and achieve reliable testing method, convenient use, Accurately Measured Effects

Pending Publication Date: 2020-12-22
TAIAN ROPE NET PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no technical index for evaluating the shrinkage of slings and safety belts for high-altitude operations, and there is not enough awareness of their shrinkage performance

Method used

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  • Expansion and contraction rate testing device and method for flat belt and high-place operation safety belt
  • Expansion and contraction rate testing device and method for flat belt and high-place operation safety belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] figure 1 It is a schematic diagram of the test device for stretching rate of the flat belt and safety belt for working at heights disclosed in Embodiment 1.

[0080] In Embodiment 1, the test device for the expansion rate of the flat belt and safety belt for working at heights includes:

[0081] The device support frame body 1, the device support frame body 1 includes an upper surface frame and a lower surface frame opposite up and down, and a left surface frame and a right surface frame opposite left and right;

[0082] The clamping assembly 2 includes a first clamping part 21 and a second clamping part 22, wherein the second clamping part 22 is set and installed on the right surface frame, and the first clamping part 21 is set and connected to the upper surface frame and the On the movable part on the lower surface frame, the movable part can move left and right in the horizontal direction to realize the distance adjustment between the first clamping part 21 and the ...

Embodiment 2

[0086] figure 2 It is a schematic diagram of the test device for stretching rate of flat belt and safety belt for working at heights disclosed in embodiment 2.

[0087] In embodiment 2, flat belt, safety belt stretch rate test device for working at heights includes:

[0088] The device support frame body 1, the device support frame body 1 includes an upper surface frame and a lower surface frame opposite up and down, and a left surface frame and a right surface frame opposite left and right;

[0089] The clamping assembly 2 includes a first clamping part 21 and a second clamping part 22, wherein the second clamping part 22 is installed on the right surface frame, and the second clamping part fixing part 221 provided on the right surface frame Fixedly connected, the first clamping part 21 is set and connected on the stretching rod 5, and the two ends of the stretching rod 5 are movably connected with the upper surface frame and the lower surface frame respectively, so as to b...

Embodiment 3

[0093] Tensile rate test of flat belt and safety belt for working at heights

[0094] Use the stretch rate test device of the flat belt and high-altitude operation safety belt to test the expansion ratio of the flat belt and high-altitude operation safety belt, which can be carried out according to the following methods:

[0095] (1) The two ends of the sample to be tested are respectively fixedly connected to the first clamping part and the second clamping part; usually, the sample to be tested can be pretreated so that the sample to be tested can obtain a set initial measurement state; for example, it can be Place the sling or high-altitude safety belt in the air with a relative humidity of less than 10% for more than 24 hours, then place it in an environment with a temperature of 20°C and a relative humidity of 65% for more than 72 hours, and then cut a certain length of test sample. For example 4000mm;

[0096] (2) Adjust the distance between the first clamping part and t...

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Abstract

The invention discloses an expansion and contraction rate testing device and method for flat belt and high-place operation safety belt. The testing device comprises: a device supporting frame body; aclamping assembly which is installed on the device supporting frame body, wherein the clamping assembly comprises a first clamping part and a second clamping part which are arranged to be used for clamping the two ends of a sample to be detected respectively, the distance between the first clamping part and the second clamping part is adjustable, and the first clamping part and the second clampingpart are used for applying tension to the sample to be detected; a tension sensor which is used for testing the actual tension borne by the sample to be tested; and a soaking assembly which is used for soaking the to-be-detected sample. The expansion and contraction rate testing device is simple in structure, convenient to use and reliable in expansion and contraction rate testing method, can meet the requirement for testing the expansion and contraction rate of the flat belt and the high-place operation safety belt, accurately measures the expansion and contraction rate of the flat belt andthe high-place operation safety belt, can objectively and truly evaluate the expansion and contraction performance of the flat belt and the high-place operation safety belt after being wetted by water, and helps to guide reasonable use of the flat belt and the high-place operation safety belt.

Description

technical field [0001] The application belongs to the technical field of safety protection, and in particular relates to a test device and a test method for a flat belt and a safety belt for working at heights. Background technique [0002] The flat belt is a new type of flat belt product formed by the intersecting of one or more sets of warp yarns. It is different from the shuttleless flat belt products that are vertically intersected by the warp and weft yarns. It is generally produced by a single-spindle model. The specification can be Customization ranges from 1mm to 30mm, and the materials are cotton yarn, polypropylene yarn, polyester yarn, mercerized cotton, nylon, rayon, etc., or several materials are cross-combined, and it varies according to the size of the production model, raw materials, colors, vacancies, etc. [0003] The safety belt is a protective product that prevents the workers from falling or suspends the worker in the air after the fall occurs. According...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/04G01N3/08
CPCG01N3/02G01N3/04G01N3/08
Inventor 刘瑞强沈明姜润喜朱林邱延平宋炳涛
Owner TAIAN ROPE NET PLASTIC
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