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Test device for diving masks

A testing device and diving surface technology, which is applied in the field of daily necessities testing, can solve problems such as difficulty in grasping the accuracy of the impact point, inaccurate test results, and inability to guarantee steel balls, etc., and achieve the effects of fast test switching, reduced repeated tests, and improved test efficiency.

Pending Publication Date: 2017-05-31
TUV RHEINLAND SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the following disadvantages: (1) the test sample is not easy to be safely fixed; (2) the accuracy of the impact point is difficult to grasp, and the steel ball cannot guarantee that it can hit the center of the diving mask every time; ( 3) Can not guarantee the height of the falling height of the steel ball is accurate
Therefore, using the existing test equipment to test the impact strength of diving masks is inefficient, the test results are inaccurate, and it is difficult to fully meet the requirements of the standard

Method used

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  • Test device for diving masks

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Embodiment

[0024] A test device for diving masks, the structure of which is as follows figure 1 As shown, it includes a bracket 1, a base 2, a hollow tube 3 vertically fixed on the bracket 1, and a head mold unit 4 movably installed on the base 2, and the diving mask 5 to be tested is worn on the head mold unit 4; the test , the center of the mirror surface of the diving mask 5 to be tested is in contact with the bottom of the hollow tube 3 .

[0025] Seven holes 31 are opened on the side wall of the hollow tube 3, and the vertical distances from the lower edge of these holes 31 to the bottom of the hollow tube 3 are respectively 130cm, 300cm, 350cm, 400cm, 450cm, 500cm and 530cm, and these distances are EN 16805 The impact height that the diving mask 5 to be tested needs to withstand as stipulated in the standard. The setting of the hole 31 can ensure that the distance from the steel ball falling to the diving mask 5 to be tested is accurate, and it is not necessary to re-measure the h...

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Abstract

The invention relates to a test device for diving masks. The test device comprises a bracket (1), a base (2), a hollow tube (3) vertically fixed on the bracket (1), and a head mould unit (4) movably installed on the base. A to-be-tested diving mask (5) is worn on the head mould unit (4). During test, the center of the mirror surface of the to-be-tested diving mask (5) is in contact with the bottom of the hollow tube (3). Compared with the prior art, the test device for diving masks has high efficiency and high accuracy, and is suitable for large-batch repeatability test.

Description

technical field [0001] The invention relates to the field of daily necessities testing, in particular to a testing device for diving masks. Background technique [0002] Diving is a leisure sport with underwater activities as the main content, so as to achieve the purpose of exercising, leisure and entertainment, and is widely loved by the public. In diving equipment, the mask is indispensable, allowing divers to clearly see what is underwater. When human eyes are in direct contact with water, the refraction angle of light will be slightly different from that in the air, causing the eyes to lose focus and the image to become blurred. The air between the diving mask and the eyes just solves this problem. [0003] According to EN 16805 (Safety Requirements and Test Methods for Diving Masks), the lens of a diving mask needs to withstand a certain level of impact and in the event of a lens shattering, the shattering method should also be safe. For example, the weight of fragme...

Claims

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Application Information

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IPC IPC(8): G01M11/02G01M11/00
CPCG01M11/005G01M11/0214
Inventor 管乾
Owner TUV RHEINLAND SHANGHAI
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