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: 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: 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 horizontal locking case lock includes a coupler fastened to a case and a lock with a housing surface latchable horizontally by the coupler for locking. The coupler includes at least a first wedge portion and at least one latch trough. The lock contains a locking mechanism. The locking mechanism drives and controls movement of a first retainer to further drive a second retainer to force a steel ball into or out of the latch trough, thereby control locking or unlocking of the coupler and the lock. Such a structure can safely lock the case at a public location to avert hitting and pilferage.

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 bicycle lock holding apparatus for fastening to a bicycle frame that may be installed and removed quickly to hold a bicycle lock includes a holding structure for fastening to the bicycle frame and a coupling structure for coupling with the lock. The holding structure has an anchor seat with one end fastening to a latch dock. Through an anchor plate coupling with the anchor seat, the latch dock may be turned to change the direction of a wedge trough formed on one end thereof. The coupling structure has a latch section latching in the wedge trough with two extendable button extended from two sides to insert into apertures formed on two sides of the wedge trough so that the coupling structure and the holding structure form a firm coupling.

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 coupling lock for an engine and a boat hull installed on the fastening location thereof to provide coupling and locking functions includes a base dock and a upper dock. The base dock is fastened to a transom of the boat to couple with the engine and fasten to the boat. The base dock has two corresponding fastening rods to insert in fastening holes formed on a lock body housed in the upper dock. Locking operation may be accomplished rapidly. The engine coupling section is covered to guard the engine from theft.

Abstract: A trailer lock comprises a rocket bolt, a lock body, and a chain couple. The inner side of the fixed end in the rocket bolt and one of the lock bodies individually has a mounting segment for matching a chain couple with a two-end mounting part and its connection. By the winch design of the chain, it can winch the carrying goods such as bicycle of the supporting base in the end of the car for achieving anti-theft purpose on carrying goods.

Abstract: A tow-deterrent lock for camping trailers includes a latch assembly and a latch bolt dock coupling with each other. The latch bolt dock has a transverse beam on one end that has an inner side bonding to a spherical shell which has a housing chamber with an opening. When a coupling dock extending from a camping trailer is coupled with a towing rod of a vehicle, the housing chamber of the spherical shell may house a fastening nut located below the towing rod to couple with the latch bolt dock and latch assembly to confine and lock the coupling dock and the lower end of the spherical head rod to form a theft-proof protection. When the camping trailer is not coupled with the vehicle, the spherical shell may be wedged into a spherical trough of the coupling dock to couple with the latch bolt dock and latch assembly to lock the coupling dock and form a theft-proof protection. Thus the invention can provide locking and theft-proof function in two use conditions.

Abstract: A guarding lock for a camping trailer and particularly an anti-theft guarding lock for a camping trailer to prevent the trailer from being stolen and hauled away illegitimately mainly includes a lock having a semispherical dome located thereon. A U-shaped lock bar is provided to couple with the lock for fastening to a connection socket of the trailer such that the semispherical dome is housed in and coupled with a semispherical trough formed in the connection socket to achieve anti-theft function for the trailer.

Abstract: An improved lock for a trailer enables a latch bolt to be inserted conveniently, and allows locking and unlocking operations be done easily. The lock mainly consists of a latch bar and a lock member. The lock member includes a latch sleeve, a lock ring, a connection shaft and a lock core. The lock may be easily locked or unlocked by turning a key for 90°.