Spring openers?

[catlad]

Hello all

I'm looking for some type of small spring mechanism that will open once released, hopefully, it can then be pressed back down and it will stay shut, until the next time it is pressed. I have been googling but not sure what to type in.
Any help gratefully received.

 

[Wayners]

Loft hatch type lock?

https://www.screwfix.com/p/essentials-loft-catch-silver-77-5mm-x-34mm/109TA?tc=MA7&gclsrc=aw.ds&gad_source=1&gad_campaignid=19815174711

Then there are

Twin Roller Catch

• Zinc plated

www.toolstation.com

Then there is.

https://amzn.eu/d/07qwDYUV

 

[aveatry]

I think it called "push to open" Ikea do them and they are little pistons

 

[Alec_t]

Safety-pin?