201.9.8.3.3.1 Dynamic Load Test Device for Human Weight

If dynamic forces are applied to equipment components that support or support patients during normal use (such as sitting, standing, patient handling, etc.), unacceptable risks must not occur.

Durability should consider the most unfavorable position of the bed components that support or support the patient during normal use. Verify compliance through the following tests: Test conditions:

Place the manufacturer's worst-case scenario mattress on a flat bed. If the height is adjustable, adjust the height to the worst-case position. Use a load pad (Figure 201.104) at position A in Figure 201.116, on the weakest side.

Force range: 0-2000N can be set

Using a stepper motor to drive the screw lifting mechanism for pressurization, sustainable or cyclic loading

Frequency: 6-15 times/min adjustable

Loading speed: 0.01-20mm/s can be set

Cycle times: 1-999999 can be set. After reaching the set time, the automatic cycle test function will be activated. When the test reaches the user set number of times, the device will automatically shut down and issue an alarm.

Specification of dynamic load test head: The load pad (see Figure 201.104) is a rigid circular object with a diameter of 355mm ± 5mm. Its surface has a convex spherical curvature with a radius of 800mm, and the front edge radius is 20mm.

Technical parameters of human body weight dynamic load experimental fixture:

1. This device complies with the requirements of dynamic load standard clauses based on human body weight;

2. Impact testing of human body sitting on medical equipment;

3. Electric lifting method is required.

4. This equipment uses a worm electric elevator to drive the stainless steel counterweight slot to raise and lower to adjust the height. The impact height is 150mm. The human body counterweight model: stainless steel counterweight slot, hard foam material at the bottom, and steel balls are used for counterweight.

　　Bed dynamic and static load deviceTechnical Specifications

1. Working power supply: AC220V50HZ;

2. Using a turbine worm electric lift to drive the stainless steel counterweight groove to adjust the height (equipment or design drawings need to be provided for explanation)

3. Impact height 150mm;

4. Body weight model: stainless steel counterweight tank, hard foam material at the bottom, steel ball counterweight, about 300KG;

5. The release device adopts electric release to meet the impact of samples of different sizes;

6. PLC touch screen programming control;

7. Dynamic display of force values, data can be stored and exported.