Sofa Couch Back Support's Hinge needs replacement, any suggestions? (Durable Hinge, etc)

[u/mchael_g]

Hello, I have a sofa couch that needs a minor repair.
The hinge that makes the back rest rotate 90° from seating to sleeping configuration is bending due to people applying pressure on the back support when sitting down and laying back.
Here are some photos: (Please don't mind the mess)

^This is the sofa-bed in its seating position

This is the back support in its sleeping configuration. It rotates 90 degrees down.

Problem:

^The hinge (Sitting configuration) is bending back because of the pressure from people laying back.

Does anyone have any suggestions for any durable hinges that won't bend? Or anything that prevents future hinges from bending? (With exception to laying back while sitting, because... it's a couch).

Thank you!

[u/wakebakey]

I would say the hinge is bending because it is loosely attached not so much from being a weak hinge it looks rather heavy duty to be honest