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CN-224216280-U - Device for measuring effective protection area of eye protector based on head model

CN224216280UCN 224216280 UCN224216280 UCN 224216280UCN-224216280-U

Abstract

The application relates to a measuring device for an effective protection area of an eye protector, which comprises a head die used for wearing the eye protector and evaluating the effective protection area, wherein the head die comprises a protection area mark, and an injection device comprising a nozzle, a pressure regulating device and a solution containing cavity, wherein the nozzle is used for injecting a solution, the diameter of the nozzle is adjustable so as to change the distribution state of the solution on the eye protector, the pressure regulating device is used for regulating the injection pressure of the solution, and the solution containing cavity is used for containing the solution. By providing a head mold and an eye protector marked with different protection areas, the effective protection area of the eye protector can be measured. By arranging the nozzles with adjustable diameters, the distribution state of the solution on the eye protector or the head mould is changed, so that the measuring device provided by the application can simulate various biohazard scenes. The pressure regulating device provided by the application can be more fit with an actual injection scene by combining with the use of the nozzle, and further accurately measure the effective protection area of the eye protector.

Inventors

  • SHANG JINGLIN

Assignees

  • 上海市安全生产科学研究所

Dates

Publication Date
20260508
Application Date
20250717

Claims (10)

  1. 1. A device for measuring an effective protective area of an eye protector, comprising: a head mold for wear of the eye protector and evaluation of the effective protection area, the head mold including protection area indicia, and The spraying device comprises a nozzle, a pressure regulating device and a solution accommodating cavity, wherein the nozzle is used for spraying the solution, and the diameter of the nozzle is adjustable so as to change the distribution state of the solution on the eye protector; the pressure regulating device is used for regulating the spraying pressure of the solution, and The solution containing cavity is used for containing the solution.
  2. 2. The measurement device of claim 1 wherein the protective zone indicia is located on the face of the head mold, the plurality of protective zone indicia corresponding to a plurality of eye protectors of different levels of protection, respectively.
  3. 3. The measurement device of claim 1, wherein the spraying device further comprises a stroke adjustment knob configured to precisely control the spray volume of the solution by varying the volume of the solution in the solution-containing chamber.
  4. 4. The measurement device of claim 1, wherein the pressure regulating device comprises an injection valve, the injection valve being a pneumatic valve comprising a first air inlet for opening or closing the pneumatic valve and a second air inlet for ejecting the injection solution at a preset pressure and a preset speed.
  5. 5. The measurement device of claim 4, wherein the pressure regulating device further comprises a gas source, a first gas delivery conduit, and a second gas delivery conduit, the gas source being connected to the first gas inlet port by the first gas delivery conduit, and to the second gas inlet port by the second gas delivery conduit.
  6. 6. The measurement device of claim 4, wherein the pressure regulating device further comprises a controller for controlling the opening or closing of the injection valve, regulating the injection rate of the solution, and regulating the injection volume of the solution.
  7. 7. The measurement device of claim 1, wherein the spray device further comprises a reservoir for storing the solution and a solution delivery conduit through which the solution is delivered to the solution containment chamber.
  8. 8. The measurement device of claim 1, wherein the pressure regulating device comprises an injection valve, the injection valve being a solenoid valve.
  9. 9. The measuring device of claim 1, further comprising an adjustable platform positioned below the head die for mounting the head die and for adjusting a pitch angle of the head die, and a swivel base positioned below the adjustable platform for mounting the adjustable platform and for adjusting a horizontal swivel angle of the head die.
  10. 10. The measurement device of claim 9, further comprising a displacement table below the rotating base for mounting the base and for adjusting the position of the head die.

Description

Device for measuring effective protection area of eye protector based on head model Technical Field The application relates to the technical field of detection of individual protective equipment products, in particular to a measuring device for an effective protective area of an eye protector. Background Eye protection (eye-protector) refers to a protective article (sometimes referred to as "goggles") that is capable of protecting a person's eyes and face from injury, including protective eyewear, eye shields, and face masks. Almost all hazardous work sites require eye protection. The protection against biological hazards is no exception, and particularly, an eye protection device with high-quality protection effect is important for protecting blood or body fluid as carrier pathogens. The problems that the injection solution is injected along a horizontal single direction, the injection pressure or speed is not regulated, the injection solution cannot simulate the small opening rupture scene of blood vessels, the biological hazard scenes such as sneeze, cough, stab, saliva or low-speed objects splashed in a container cannot be simulated, the sample is fixed on the device instead of being worn on a head mold, the adhesion degree of the eye protector to the head mold cannot be evaluated, and the wetting and penetration performance of the injection solution and the actual blood/body fluid cannot simulate the characteristic parameters of blood. Disclosure of utility model In order to solve the technical problems, the application provides a measuring device for an effective protection area of an eye protector, which can simulate a blood injection scene and a scene of the fitting degree of the eye protector and a human face, and further can accurately test whether the eye protector can provide effective protection. The technical scheme adopted by the application for solving the technical problems is that the measuring device for the effective protection area of the eye protector comprises a head die used for wearing the eye protector and evaluating the effective protection area, wherein the head die comprises a protection area mark, and an injection device comprising a nozzle, a pressure adjusting device and a solution containing cavity, wherein the nozzle is used for injecting a solution, the diameter of the nozzle is adjustable so as to change the distribution state of the solution on the eye protector, the pressure adjusting device is used for adjusting the injection pressure of the solution, and the solution containing cavity is used for containing the solution. In an embodiment of the present application, the protection area mark is located on a face of the head mold, and the plurality of protection area marks respectively correspond to a plurality of eye protectors with different protection levels. In one embodiment of the application, the spraying device further comprises a stroke adjustment knob configured to precisely control the spraying volume of the solution by varying the volume of the solution in the solution-containing chamber. In an embodiment of the application, the pressure regulating device comprises an injection valve, the injection valve being a pneumatic valve comprising a first air inlet for opening or closing the pneumatic valve and a second air inlet for ejecting the injection solution at a preset pressure and a preset speed. In an embodiment of the application, the pressure regulating device further comprises a gas source, a first gas delivery conduit and a second gas delivery conduit, the gas source being connected to the first gas inlet via the first gas delivery conduit and to the second gas inlet via the second gas delivery conduit. In one embodiment of the application, the spraying device further comprises a stroke adjustment knob configured to precisely control the spraying volume of the solution by varying the volume of the solution in the solution-containing chamber. In an embodiment of the application, the pressure regulating device further comprises a controller for controlling the opening or closing of the injection valve, regulating the injection speed of the solution and regulating the injection volume of the solution. In an embodiment of the present application, the spraying device further includes a liquid storage tank for storing the solution and a solution delivery pipe through which the solution is delivered to the solution containing chamber. In one embodiment of the application, the pressure regulating device comprises an injection valve, which is a solenoid valve. In an embodiment of the application, the measuring device further comprises an adjustable platform and a rotating base, wherein the adjustable platform is positioned below the head die and used for installing the head die and adjusting the pitching angle of the head die, and the rotating base is positioned below the adjustable platform and used for installing the adjustable platform and adjusting the horizo