Modular building formwork apparatus with an interlocking device

A modular building formwork apparatus comprising:

• a formwork wall including a wall plate and a frame disposed on said wall plate, said frame having at least one aligning hole and a locking hole which has an internally threaded section;
• and
• at least one interlocking device including a housing unit, a rotation transferring unit, a transmitting unit and a locking member, said housing unit being securely disposed on said frame, said rotation transferring unit being disposed within said housing unit and having an input shaft which extends along and is rotatable about a first axis, and an output shaft which extends along a second axis that is perpendicular to the first axis and extendable through the at least one aligning hole, said output shaft being rotatable about the second axis with the rotation of said input shaft, said transmitting unit being coupled with and movable relative to said output shaft along the second axis and being rotatable about the second axis with the rotation of said output shaft, said locking member being coupled with said transmitting unit, and being movable along and rotatable about the second axis with the movement and rotation of said transmitting unit, said locking member having a head portion which is coupled with said transmitting unit along the second axis, a positioning portion which extends from said head portion along the second axis and away from said transmitting unit, and a threaded portion which extends from said positioning portion along the second axis and away from said head portion, said locking member being insertable into the at least one aligning hole, said threaded portion being configured to permit mating engagement with the internally threaded section of the locking hole,
• wherein said transmitting unit has a transmitting member which is sleeved around said output shaft to be movable relative to said output shaft along the second axis, and a coupler which is connected with both said transmitting member and said head portion of said locking member to be rotatable with said transmitting member, said transmitting member having a tubular portion which has a cross-section that is perpendicular to the second axis and that mates with a cross-section of said output shaft such that said transmitting member is movably and non-rotatably engaged with said output shaft.

A modular building formwork apparatus comprising:

• a formwork wall including a wall plate and a frame disposed on said wall plate, said frame having at least one aligning hole and a locking hole which has an internally threaded section;
• and
• at least one interlocking device including a housing unit, a rotation transferring unit, a transmitting unit and a locking member, said housing unit being securely disposed on said frame, said rotation transferring unit being disposed within said housing unit and having an input shaft which extends along and is rotatable about a first axis, and an output shaft which extends along a second axis that is perpendicular to the first axis and extendable through the at least one aligning hole, said output shaft being rotatable about the second axis with the rotation of said input shaft, said transmitting unit being coupled with and movable relative to said output shaft along the second axis and being rotatable about the second axis with the rotation of said output shaft, said locking member being coupled with said transmitting unit, and being movable along and rotatable about the second axis with the movement and rotation of said transmitting unit, said locking member having a head portion which is coupled with said transmitting unit along the second axis, a positioning portion which extends from said head portion along the second axis and away from said transmitting unit, and a threaded portion which extends from said positioning portion along the second axis and away from said head portion, said locking member being insertable into the at least one aligning hole, said threaded portion being configured to permit mating engagement with the internally threaded section of the locking hole,
• wherein said positioning portion of said locking member is tapered gradually from said head portion along the second axis and has a maximum outer diameter which is smaller than an outer diameter of said head portion, said positioning portion having a first tapered section which is connected with said head portion, and a second tapered section which is connected between said first tapered section and said threaded portion, said at least one aligning hole of said frame having a larger-diameter section in which said head portion is matingly engageable, and a first tapered hole section which is in communication with said larger-diameter section and in which said first tapered section is matingly engageable, said locking hole further having a second tapered hole section which is in communication with said internally threaded section and in which said second tapered section is matingly engageable.