Abstract: The invention relates to a bicycle lock for multiple connection uses, which is consisted of a body, a fit seat, a push rod, a lock cylinder module, a first clamping block, a second clamping block, a external locking element and an external connecting element. By the composition of the above structure, a quick release handle connected to a seat tube of a bicycle may be locked, and also, lock of connecting the external locking element and the external connecting element may be provided, to thereby achieve the purpose of preventing theft from a bicycle seat, front and rear wheels or other objects within a bicycle, and the purpose of conveniently locking and unlocking.

Abstract: A drive assembly of an electric bicycle is disclosed. A shell tube of an electric bicycle is transfixed with a crank shaft sheathed with an outer shaft set. The outer shaft set links to a tubular motor set. A first side of the crank shaft is provided with a left positioning set sheathed and limited in a left hole of the shell tube. A second side of the crank shaft is provided with a right positioning set sheathed and limited in a right hole of the shell tube. The right positioning set is fixed with a chain wheel set. A displacement of the crank shaft pulled by a bicycle chain is detected by a torque detection unit, and a torque is accessed by a control unit based upon the displacement to control the output power of the tubular motor set, thereby assisting pedaling the bicycle with feet.

Abstract: The invention relates to a bicycle quick release lock, which is consisted of a body, a fit seat, a lock cylinder module, a push button, a clamping block, an external lock block, a locating seat, a slide plate and an outer hook piece. By the composition of above structure, a part of a quick release handle connected to a seat tube and a middle tube of a bicycle seat may be locked, and a linked locking mechanism of an external lock latch may be provided simultaneously, to thereby achieve the purpose of preventing theft from bicycle seat, front and rear wheel or other objects within a bicycle.

Abstract: A drive assembly of an electric bicycle is disclosed. A shell tube of an electric bicycle is transfixed with a crank shaft sheathed with an outer shaft set. The outer shaft set links to a tubular motor set. A first side of the crank shaft is provided with a left positioning set sheathed and limited in a left hole of the shell tube. A second side of the crank shaft is provided with a right positioning set sheathed and limited in a right hole of the shell tube. The right positioning set is fixed with a chain wheel set. A displacement of the crank shaft pulled by a bicycle chain is detected by a torque detection unit, and a torque is accessed by a control unit based upon the displacement to control the output power of the tubular motor set, thereby assisting pedaling the bicycle with feet.

Abstract: The present invention discloses a foldable lock. The foldable lock is constituted by a lock head which is pivoted with a foldable lock rod set. Two steel balls are used by the lock head to control unlocking and locking operations, thereby improving difficulty in prizing. The foldable lock rod set is composed of plural flexible lock rods, plural pivoting sheaths, plural protective covers and plural bolts, allowing the foldable lock to have a better circuity when twining an object. By the abovementioned structures, the foldable lock can increase convenience in the locking operation and enhance the anti-theft effect.

Abstract: The present invention relates to a universal frame for electric bikes and human powered bicycles, the frame body of the universal frame is consisted of a top tube, a down tube, a seat tube, two seat stays and two chain stays, wherein a holder is welded on the junction of the down tube, the seat tube and the chain stays, the holder is used to fasten on a bottom bracket shell with different specifications according to usage requirements. By the composition of the above elements, the present invention may be provided to assemble the main-shaft-chain wheel set of electric bikes or human powered bicycles, to thereby simplify the process, reduce the amount of inventories and achieve the convenience of universal interchangeability.

Abstract: The present invention relates to a universal frame for electric bikes and human powered bicycles, the frame body of the universal frame is consisted of a top tube, a down tube, a seat tube, two seat stays and two chain stays, wherein a holder is welded on the junction of the down tube, the seat tube and the chain stays, the holder is used to fasten on a bottom bracket shell with different specifications according to usage requirements. By the composition of the above elements, the present invention may be provided to assemble the main-shaft-chain wheel set of electric bikes or human powered bicycles, to thereby simplify the process, reduce the amount of inventories and achieve the convenience of universal interchangeability.

Abstract: A trailer hitch having a retaining latch bolt to reduce shaking includes a locking head, a bolt seat, a retaining element, a latch bolt and an elastic element. The retaining element has a first directing rib to be rapidly positioned in a first bolt aperture of a first coupling member. The bolt seat has a positioning rib anchored in a second bolt aperture of a second coupling member to facilitate coupling of the first coupling member and the second coupling member. Hence the latch bolt can be coupled easily and adjustment of coupling tolerance can be performed as desired. Locking can be done to thwart pilferage of the trailer. And the latch bolt can be held firmly without sliding or shaking.

Abstract: A trailer hitch having a retaining latch bolt to reduce shaking includes a locking head, a bolt seat, a retaining element, a latch bolt and an elastic element. The retaining element has a first directing rib to be rapidly positioned in a first bolt aperture of a first coupling member. The bolt seat has a positioning rib anchored in a second bolt aperture of a second coupling member to facilitate coupling of the first coupling member and the second coupling member. Hence the latch bolt can be coupled easily and adjustment of coupling tolerance can be performed as desired. Locking can be done to thwart pilferage of the trailer. And the latch bolt can be held firmly without sliding or shaking.

Abstract: A quick release lock to facilitate smooth locking and unlocking operations includes a quick release apparatus and a linkage bar. The quick release apparatus includes a quick release handle, a sleeve, an actuation member and a lock. During locking and unlocking operations, the smooth characteristics of a latching bead is employed so that by turning and driving of the actuation bar, coupling with a slant trough of the quick release handle and guiding operation of a first bead trough of the linkage bar and a second bead trough of the sleeve, positioning and latching of the quick release handle can be controlled to prevent unauthorized opening of the quick release apparatus and achieve theft-proof effect.

Abstract: A unfastening-proof structure for nut sleeves of quick release locks and particularly to a structure capable of preventing a nut sleeve from being unfastened to achieve theft-thwarting function includes a quick release mechanism on a quick release lock which has a lock assembly on one end. The quick release mechanism includes a rod which has a threaded portion on a distal end to be coupled with a nut sleeve. The nut sleeve includes a rotary tray, an elastic element, an inner sleeve, a barrel and a plug. The inner sleeve is disengaged with the barrel after the quick release lock is in a locking condition so that when an external force is applied to turn the nut sleeve, an idle rotation is formed. Therefore the nut sleeve cannot be unfastened to achieve the theft-thwarting effect.

Abstract: An improved padlock and particular an improved small padlock that has a shackle adjustable to a desired length includes a lock body and a steel cable. The steel cable can run through the lock body to form a closed shackle. The lock body includes a casing, a dial assembly, two pushbuttons, two thrust members and two latch members. Locking and unlocking operations can be accomplished by depressing the pushbuttons. The latch members can engage with the steel cable to form a locking condition, or be moved away from the steel cable to form a unlocking condition so that the shackle range formed by the steel cable and the lock body can be adjusted to meet user's requirements. It overcomes the problem of the conventional padlocks that provide a shackle which is not adjustable and often does not have an adequate length.

Abstract: A lock comprises a shell including an axial hole, a radial hole in communication with the axial hole, and a threaded section on the radial hole; a handle mechanism including a recess in the lower portion for pivotably receiving the shell, a groove in the bottom in communication with the recess, a side hole in communication with the radial hole and the recess, and a pin fixed in a side aperture; a slidable adjusting bar in the radial hole, the adjusting bar including an upper end, a lower end, and an annular groove in the central portion; a body secured in the axial hole, the body including a keyhole on one end, a rotatable lock mechanism on the other end, and a rotatable stud on the lock mechanism capable of being activated to move into or retract from the annular groove; and a cylinder including an upper threaded section threadedly secured to the threaded section of the shell, a lower section for fastening two work pieces, and a top hole for receiving the lower end of adjusting bar.

Abstract: A lock comprises a shell including an axial hole, a radial hole in communication with the axial hole, and a threaded section on the radial hole; a handle mechanism including a recess in the lower portion for pivotably receiving the shell, a groove in the bottom in communication with the recess, a side hole in communication with the radial hole and the recess, and a pin fixed in a side aperture; a slidable adjusting bar in the radial hole, the adjusting bar including an upper end, a lower end, and an annular groove in the central portion; a body secured in the axial hole, the body including a keyhole on one end, a rotatable lock mechanism on the other end, and a rotatable stud on the lock mechanism capable of being activated to move into or retract from the annular groove; and a cylinder including an upper threaded section threadedly secured to the threaded section of the shell, a lower section for fastening two work pieces, and a top hole for receiving the lower end of adjusting bar.

Abstract: A bicycle cable lock comprises a hollow socket, a positioning seat disposed on the hollow socket, a U-shaped clamp seat disposed on the positioning seat, and a cable positioned by the U-shaped clamp seat. The cable has two loops. The loops are locked by a padlock.

Abstract: An improved lock guarded from being sabotaged by prying or cutting has a round latch rod and a lock assembly that are separably locked together by way of retaining balls housed and limited in holes in a rotary unit which is spring biased so as to retractably move back and forth in a sleeve. A limiting stopper having a flanged end which is provided with a pair of opposite cuts in correspondence to the retaining balls. The retaining balls are in general limited by the flanged end without being movable up and down so that a latch rod having a groove in which the retaining balls can be housed is locked in place once the latch head is forced into engagement with the retaining balls.

Abstract: A quick release mechanism is engaged on a two wheeled cycle for securing wheels, seat post or other elements. The quick release mechanism includes a post engaged through a pad and a sleeve, and threadedly engaging with a nut. A lock housing is secured on one end of the post. A core is rotatably engaged in the lock housing. A handle includes two cams secured to two end portions of the core such that the core and the handle rotate in concert. The handle is prevented from rotating when the core is locked to the lock housing such that the quick release mechanism may not be disengaged from the bicycle frame.