I am remodeling and I have to replace kitchen cabinets and sink, I was thinking if I had a set up like I do for my washing machine,-in wall faucets and drain it would make it easy to disconnect and move sink out to replace the bad floor then put it back until the new cabinets come in. do they make something like this, is it a good idea?
If you really want to go through this effort (rather than just capping off the lines), then you should just install the lines into the walls (if they aren't already).
Normally you'd just cap the lines off until you're ready to hook everything up (as seen in my picture above), but there's nothing stopping you from putting valves on instead of caps, which is a great idea anyway (it makes it easier to hook up, service later, etc).
With the pipes in the walls, you can freely work on the floor and install cabinets without worrying about them (and as you can see in this photo, it was before I had flooring or cabinets in).
Here's the same connections (with valves) after installing cabinets and the new sink:
Nothing stops you from using valves instead of caps, though it does require cutting a bigger hole in the cabinet to install. Depending on your cabinet style you may or may not like this -- in my case these are pretty cheap cabinets installed in a laundry room in the basement, I wasn't too worried.
Just be sure you don't accidentally knock the vales open while you're working, or you'll ruin the floor that you're not even finished installing yet!
Not really necessary. There should be shutoff valves under the sink. Usually those can be turned off (verify that once they are no water comes out of the faucet) and the pipes up to the faucet can be disconnected. The same is true with the waste lines. They normally have screw fittings that can be removed and reassembled.
A wall box like a washer uses won't work for a sink. A sink has the trap under it, a washer box has the trap hidden in the wall. A washer pumps water up and out, a sink relies on gravity. There can be no openings in the pipe after the trap, doing so will allow sewer gases into the home.
In commercial spaces and in some countries it is common to have a drain (with trap) on the floor, and the fixtures have pipes that empty out above the drain. This can be messy and is rarely done in residential.
It is not advisable to have an inaccessible trap for a kitchen sink. That probably violates code for the clean-out somehow. Yes, it will work, however there will also be an air gap where you shoved the drain into the standpipe leading to bad smell if the trap has goo in it. It's OK for washing machines because there's no food waste and a good dose of soap every time.