Double-unlockable lock structure for binding strap

A double-unlockable lock structure for binding strap, comprising:

• a latch seat having a receiving space and a binding strap disposed in the receiving space, one end of the binding strap being fixedly tied on a rack, projecting latch hook seats being disposed at one end of the latch seat, the other end of the binding strap having a latched head in which the latch hook seats are fitted, a displacement range being formed near the latch hook seats for receiving a lower latch hook drivingly connected with a lock core;
• a latch cover, one end of the latch cover being pivotally disposed on the latch seat, the other end of the latch cover being a free end, whereby the latch cover can be turned up about the pivoted end, the latch cover being formed with numeral wheel windows;
• a numeral lock module including a wheel shaft, several numeral wheels being pivotally connected on the wheel shaft and exposed and shown to outer side through the windows of the latch cover;
• a button member disposed at the free end of the latch cover, the button member having an inner extension section extending from the button member toward inner side of the latch cover and a press board extending from the button member toward outer side of the latch cover, the button member being slidably connected under the latch cover, whereby the inner extension section extends to a position near the numeral lock module which controls the inner extension section to decide whether the button member can be pushed or not, a projecting upper latch hook being disposed near the free end of the button member, whereby in normal state, the upper latch hook hooks the lower latch hook to keep the latch cover closed on the latch seat in a locked state;
• and
• a key-driven module including a key-driven lock core, when the key drives the lock core, the lower latch hook is driven to latch with or unlatch from the upper latch hook.