Intelligent humanoid head model for testing child mask and child mask testing method

Abstract

The invention discloses an intelligent humanoid head model for testing a child mask and a child mask testing method. The intelligent humanoid head model comprises a head model outer sleeve, a head model inner shell, a control box, a head shaking mechanism arranged in the head model inner shell, a nodding mechanism, a mouth opening and closing mechanism, a nasal cavity hose and an oral cavity hose.The control box controls the humanoid head model to complete head shaking motion, nodding motion and mouth opening and closing motion in the mask tester, and detection of the child mask is completed.The defects that in the prior art, due to imperfect design of all action mechanisms, accumulated errors are large, too much space is occupied, and vibration is prone to occurring in the movement process, a control system is difficult to maintain in the later period, and angle information cannot be fed back in real time are overcome. The movement precision of the movement mechanism is improved, the occupied space is reduced, and the oral-nasal cavity catheter and the angle sensor are reasonably arranged to achieve real-time feedback of angle information in the movement process.

Description

technical field [0001] The invention relates to the technical field of intelligent humanoid headforms, in particular to an intelligent humanoid headform and a test method for children's masks for testing the inhalation resistance, exhalation resistance and protective effect of children's masks. Background technique [0002] It is very necessary to test the inhalation resistance and exhalation resistance of children's masks. The mechanical structure of the existing children's mask test headform to simulate the movement is usually realized by a planar linkage, that is, the movement of the nodding mechanism and the opening and closing mechanism of the mouth is realized by a plane linkage. This type of planar linkage mechanism has a large number of components and kinematic pairs, and the cumulative error is large, which reduces the movement accuracy of the mechanism; at the same time, this type of linkage mechanism occupies too much space resources in the inner cavity of the hea...

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Problems solved by technology

[0003] In order to overcome defects such as large cumulative errors caused by the imperfect design of the mechanical structure and control system for simulating motion actions in the prior art, too much space resources are occupied, vibrations are prone to occur during the motion process, difficult post-maintenance of the control system, and the inability to feed back angle information in real time, etc. , the present invention adopts the scheme of DC deceleration motor and steering gear to realize the actions of the nodding mechanism, the shaking head mechanism and the chin opening and closing mechanism, so as to reduce the occupation of space resources, so as to reasonably arrange the catheters in the oral and nasal cavity, and realize the real-time angle information during the movement process through the angle sensor. the feedback

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