folding D-ring flush mount in poured floor?

[CoyoteDuster]

I'm in the planning stages of my 18 x 19 garage slab. I have searched for ideas for anchor points to use for securing equipment, winching cars into the garage, and providing a solid point for bending axles and frames against the force of a floor jack. I see reference to redhead drop-in inserts, and I see a 4-bolt plate design here, but that does not seem strong enough.

https://www.fallprotectionpros.com/...FqIH3g5PQTuR3to4m31u3_ZvYbh0qkd8aAnOkEALw_wcB

I want to have a stout d-ring like the below, welded to a rod and baseplate that are integral to the slab, and can withstand an upward pull of several tons. I want it to lie flush to the floor when not in use. I can't find anything like this available, with a d-shaped cup recess that can be molded in. I imagine I could find a fabricatior to make one, or make a wood or wax pattern and burn it out of the slab after the pour.

Has anyone any experience with this? I just saw this idea in a youtube video last night: it's at "aboot" 8:33 in this video.

https://www.etrailer.com/Tie-Down-Anchors/Buyers-Products/337B51.html

 

[Wrench97]

Just make sure they are out of the way, I once worked in a old truck shop that had them in the floor was a real pain when they ended up under the truck and the creeper gets stuck in /on them.

 

[like2wheel]

Consider collision shop pull pots, but this is what I did:

I took some 3/4" coupling nuts, ran a bolt 1/2 way in with a nut at the other end holding a large thick washer against the head. I put some utility flags where I wanted them placed, & the concrete guys set them flush.
I found some rings, folded over some flat stock & drilled 3/4 holes to make pull rings. Install when needed.
Used some nylon bolts to fill the holes, cut them flush & sawed a slot to screwdriver them out when I need to install the rings.

 

[mkef]

Weld a few to some 12"x12"' 1/2" plate and have the concrete guys suspend it on those stand off deals during the pour. You could cut some 3 or 4" PVC to slip over top of the d rings while the pour so the dont get buried they they can pull them and finish the edge while they finish trowel.

 

[CJDave]

My friends used to own a body shop. They had the shop built to there specs and that included "anchor pots" in the floor of one stall. I think Blackhawk made them. About 5 inch square tube with a bar welded across the inside. That allowed a chain with hook to be passed down the tube and back up to the chain. There was a air powered hydraulic cylinder mounted on the "pull post" to direct the pulling power applied by the chain to the body part to be pulled. I'm not sure what the hidden part of the anchor pots looked like but they were mounted into thicker concrete than the rest of the shop floor. That section may have been a different concrete mix besides. I don't recall. There were steel lids that covered the pots when they were not in use. CJDave.

 

[larry_g]

pull pots site:garagejournal.com

Copy the above search term and paste it in google search and you will come up with quite a few threads on the subject.

lg
no neat sig line

 

[lis2323]

This is what I do.

I incorporate pull points with vertical square receivers for vises, grinders benders and stabilization points for weld tables, ladders scaffolding and temporary platforms.

This one is on the apron outside my shop but I also have them inside.






Sent from my iPhone using Tapatalk

 

[CoyoteDuster]

Brilliant! thanks, guys, this is exactly what I need. I didn't know they were called "pull pots" - now I do. This is for a residential, home garage/hobbyist auto shop, but I can see the value of having at least one of these, with a flush-fit cover.

 

[Lonnies Performance]

I used these in my garage. They work well & are 3.5" dia.

https://www.autobodytoolmart.com/product/champ-floor-anchor-pot-1600