YY9706.252 201.9.8.3.3.3 “Sidebar Strength and Latch Reliability

201.9.8.3.3.3 "Sidebar Strength and Latch ReliabilityDesign and manufacture according to the requirements of section 201.9.8.3.3.3 "Sidebar Strength and Latch Reliability" in YY9706.252-2021 "Medical Electrical Equipment Part 2-52: Special Requirements for Basic Safety and Basic Performance of Medical Beds". Suitable for testing the load, guardrail push-pull strength test, and dynamic load fatigue test of medical beds, elderly care beds, traditional Chinese medicine therapy beds, and other products. Test the strength of the simulated bed under load conditions, as well as the push-pull strength of the guardrail and the dynamic strength of the tension rod.

Verify compliance through the following tests, with the sidebar located in the upper position:

a) Lateral force repeated action cycle test. Apply in the direction indicated by E or F in Figure 201.117 to the middle part of the top of the sidebar

A force of 100 N perpendicular to the sidebar. negative direction. Repeat 3000 times;

b) Longitudinal force repeated action cycle test. Apply 100 N along the longitudinal direction of the edge fence as shown in C or D of Figure 201.117

The power. negative direction. Repeat 3000 times;

c) Vertical force repeated action cyclic test. According to B in Figure 201.117, apply 100N along the vertical direction of the sidebar to its top

The power. Repeat 3000 times. A direction does not require testing;

d) After completing a), b), and c), apply a static load in the direction of Figure 201.117 along the worst-case position. Sidebar not allowed

Becoming unlocked or incurring other unacceptable risks

Force range: 0-1000N, force accuracy: ± 0.5%;

Drive mode: motor-driven;

Action range: 0~100mm can be set;

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

Pressure holding time: 1~99 (s) can be set arbitrarily, and the pressure will be automatically released after the time is up

Test frequency: 999999 times can be set. After reaching the set time, the test function will automatically cycle. When the test reaches the user set number of times, the equipment will automatically shut down and issue an alarm.

3、 Main technical parameters:

1. Bed height: 500-700mm, length 1500-2100mm;

2. Vertical force: 2000N (downward pressure);

3. Lateral force: 1000N (push-pull) for 2 units;

5. Force sensors: 3 sets in quantity;

6. Stepper motor+driver: 5 sets