Do parking brakes lock the wheels and airframe together?
Yes, the parking brakes lock the wheel and the airframe together. If the brakes are not applied, the wheel can rotate round the axle. 

If the wheel's position is fixed to the ground (e.g. by adding chocks, but the brakes are not applied, then the aircraft will rotate round the wheel axle when the tail is lifted by the blue man. 

If the brakes are applied, but the wheel's position is not fixed to the ground, the aircraft will rotate round the wheel's point of contact with the ground. Since the contact point moves as the wheel rolls, this results in translation in addition to the rotation.

If both the brakes are applied and the wheels are on chocks, the wheels either have to roll over the chocks or something (the wheel, the chock or the brake) will have to slip.