Helmet penetration resistance testing device and method

A testing device and helmet technology, which is applied in the measurement device, using repetitive force/pulsation force to test the strength and strength characteristics of materials, etc., can solve the problems of poor reliability of test data and the inability to accurately locate the lifting height of the impact hammer, and achieve the test process. The effect of convenience, improving test accuracy and simple structure

Pending Publication Date: 2018-12-21
SHANGHAI ZANRAY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of the existing helmet penetration resistance testing platform, the lifting height of the impact hammer cannot be accurately positioned, and the reliability of the test data is poor. The present invention provides a helmet penetration resistance testing device and testing method. Using the height calibration mechanism, it can Accurate positioning of impact height to improve test accuracy, simple structure, convenient and safe operation; clear and scientific test process, simple and convenient operation, high test accuracy and test efficiency

Method used

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  • Helmet penetration resistance testing device and method
  • Helmet penetration resistance testing device and method
  • Helmet penetration resistance testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A helmet penetration resistance test device, such as figure 1 , 5 , 6, including anvil base 1, support 2, steel wire guide rail 8, release mechanism 4, falling mechanism 5, lifting wire 9, lifting mechanism 6 and headform device 3; said support 2 is a door frame shape, including two A vertical column and a beam at the top, the bracket 2 is vertically fixed on the anvil base 1, the upper end of the steel wire guide rail 8 is fixedly connected with the bracket 2, and the lower end is connected with the anvil base 1 fixedly connected, the steel wire guide 8 is two steel wires vertically parallel and tensioned; Slide up and down; one end of the lifting steel wire 9 is fixedly connected to the release mechanism 4, the other end is connected to the lifting mechanism 6, and the middle part is detoured on the roller 10 arranged at the top of the support 2. By controlling the lifting mechanism 6 can lift the release mechanism 4 and the drop mechanism 5, such as Figure 4 As s...

Embodiment 2

[0075] A kind of helmet penetration resistance testing device of the present embodiment, the basic structure is the same as that of embodiment 1, the differences and improvements are as follows: Figure 5 , 6 As shown, the upper adjustment mechanism includes a connecting rod I73, a sleeve I74 and a fastening knob I75; the sleeve I74 is sleeved on the connecting rod I73, and the fastening knob I75 is screwed on the sleeve I74, and through the sleeve I74 against the connecting rod I73; the lower end of the connecting rod I73 is fixedly connected with the tape head of the tape measure 72; one end of the connecting plate 70 is connected with the release mechanism 4 It is fixedly connected, and the other end is fixedly connected with the sleeve I74.

[0076] When adjusting, turn the fastening knob I75 to loosen the locking of the connecting rod I73, then move the connecting rod I73 up and down until the zero point of the scale on the tape measure 72 is at the same water height as ...

Embodiment 3

[0079] A kind of helmet penetration resistance testing device of the present embodiment, the basic structure is the same as that of embodiment 2, the differences and improvements are as follows: Figure 6 As shown, the lower adjustment mechanism includes a connecting rod II76, a sleeve II77, a fastening knob II78 and a reference plate 79; the connecting rod II76 is vertically fixed on the tape measure box 71, and the sleeve II77 is sleeved on on the connecting rod II76; the fastening knob II78 is screwed on the sleeve II77, and passes through the sleeve II77 to be pressed against the connecting rod II76; one end of the reference plate 79 is connected to the sleeve The tube II 77 is fixedly connected, and the other end extends to the front side of the tape of the measuring tape 72 . In this embodiment, the reference plate 79 is a transparent plastic plate or a glass plate, and the reference plate 79 is provided with a horizontal positioning line, which cooperates with the tape ...

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Abstract

The invention discloses a helmet penetration resistance testing device and method and belongs to the technical field of helmet testing devices. The device comprises an anvil base, a support, steel wire guide rails, a release mechanism, a dropping mechanism, a lifting steel wire, a lifting mechanism and a head model device, wherein the support, the anvil base, the steel wire guide rails, the release mechanism, the dropping mechanism, the lifting steel wire and the lifting mechanism are arranged in cooperation; the device also comprises a height calibration mechanism; and the height calibrationmechanism comprises a tapeline box, a tapeline, an upper adjustment mechanism and a lower adjustment mechanism, wherein the tapeline box is fixed to the lower end of the support, the tapeline is fixedinto the tapeline box, the tape head of the tapeline is connected with the upper adjustment mechanism, the upper adjustment mechanism is connected to the release mechanism, and the lower adjustment mechanism is fixed to the tapeline box. According to the device, by use of the height calibration mechanism, precise positioning of impact height can be realized to improve testing precision; meanwhile, the device is simple in structure and convenient and safe to operate; and the testing process is clear and scientific, operation is easy and convenient, and the testing precision and testing efficiency are high.

Description

technical field [0001] The invention belongs to the technical field of helmet testing devices, in particular to a helmet penetration resistance testing device and a testing method. Background technique [0002] Firefighting helmet is one of the important personal protective equipment for firefighters, which can effectively protect the head of firefighters. The penetration resistance of the fire helmet is the technical index of the pipe fittings that determines the protective performance of the fire helmet. my country's GA44-2004 "Fire Helmet" industry standard stipulates that fire helmets must pass the test of penetration resistance. [0003] At present, the penetration resistance test benches of fire helmets used in the fire helmet industry are all drop-type penetration test benches. Affect the test accuracy; in addition, the release mechanism is driven by a motor to lift, and the lift is not suitable for control, and the energy consumption is high. [0004] After retrie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303G01N3/34
CPCG01N3/303G01N3/34G01N2203/0033G01N2203/006G01N2203/0262
Inventor 俞川华池诚王安平张锐傅倩盛春阳钱燕清
Owner SHANGHAI ZANRAY IND
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