Here is my little cleaver mod I thought up on a trip in May this year.
First there is the hatch latch. Nothing wrong with it but it is where it begins.

Now for what I call. "My squigles" Made of copper coated gas welding rod. No idea what diameter, it is what I usually have around. Use what ever is handy, can be bent and still take what happens in the end.

Open hatch and hook squigles in the latches, both sides if you wish.

And here is the whole point of the squigles.

Haven't really used it yet camping but I think it will be handy and weight almost nothing and little packing space.
Randy