Abstract: A bike trailer with improved top cover includes a trailer frame installed with a seat, a top cover, a left panel and a right panel. One side of the top cover is fixed to one side of the trailer frame. A connecting member and a connected member are respectively provided between the other side of the top cover and the other side of the trailer frame so that the top cover can be opened when the connecting member is disengaged from the connected member. The top cover is provided with an accommodating space along the direction of opening to receiving direction, and a stretched and straightened coiled leaf spring is installed in the accommodating space and fixed on the top cover.

Abstract: A foldable frame structure for trailer so designed that the distance between the pivot connection center of each pivot holder and the left/right side frame and the topmost edge of the left/right frame bar of the bottom frame is greater than the distance obtained by deducting the width of the collapsed bottom frame from the height from the left/right frame bar of the bottom frame to the topmost edge of the left/right side frame. Thus, the left side frame and the right side frame can be individually collapsed and closely attached to the bottom frame in one step. The present invention can greatly save the transportation volume and simplify the folding structure and folding action, and thus achieve the purpose of user's convenient collection and carrying.

Abstract: A bullet aligning device in which the bullet on the turntable can be thrown to the periphery of the turntable through centrifugal force and sent out through the bullet outlet, and the adjacent wall of the bullet outlet is provided with a through groove, the height of the through groove is slightly smaller than the diameter of the bullet to prevent two or more bullets from jamming the bullet outlet to ensure the smooth delivery of bullets. The bullet aligning device uses the directional track arrangement to allow only one bullet to enter the guide groove at a time to give each bullet enough time and space to fall, so that the bullets choose the heavier tail to fall into the direction-correcting guide slot, and the bullets in the same direction are exported from the one-way export slot.

Abstract: A slide plate target-drop hole changing structure used in an auto target throwing trap is disclosed to include a slide plate slidably coupled to an upper cover plate of the auto target throwing trap and provided with a first target-drop hole for large-size targets to drop down from a target-drop opening of the upper cover plate through the first target drop hole, and a filling piece detachably connected to the slide plate. When the filling piece is connected to the slide plate, a second target-drop hole is formed between a concave arc gap of the filling piece and the first target-drop hole of the slide plate for the passing of small-sized targets.

Abstract: A bullet reload device includes a base, a roller seat, a roller and a flexible connection member. The grooves formed between the blades of the roller only let the bullets in the correct direction fall in, so that the bullets in the correct direction can move in a row. The line-up track of the base has a guide rail set therein, so that the extractor grooves of bullets can follow the guide rail to scroll from top to bottom in the line-up track without turning the direction, and thus, bullets can be neatly arranged in the line-up track. The flexible connection member is provided with a pressure plate connected to the roller seat by tension springs, so that pressing the pressure plate with the palm can conveniently apply force to move the flexible connection member downward along the non-linear line-up track to push the bullets into the magazine.

Abstract: A main drive assembly positioning structure for pivotally positioning a main drive assembly on a main frame of a throwing trap by attaching a first fixing frame with a first inner semicircular arc groove and a second fixing frame with a second inner semicircular arc groove to the left and right sides of the main drive assembly and using fastening members to affix the first fixing frame and the second fixing frame together, so that the main drive assembly positioning structure has the advantages of saving accessories and reducing costs and can relatively simplify the installation process and save assembly manpower and man-hours.

Abstract: A vehicle bike rack formed of a connection tube, a main support tube and a U-shaped frame is disclosed to include an upper mounting block mounted on the U-shaped frame, a lower mounting block movably connected to the upper mounting block, a front wheel clamp connected to the lower mounting block and a third locking device for locking the front wheel clamp to the front wheel of the bike. The front wheel clamp includes a mounting rod connected to the lower mounting block, and a U-shaped clamping plate provided at one end of the mounting rod and attached to the front wheel of the bike and locked thereto by the third locking device to prohibit the front wheel of the bike from vibration as the vehicle carrying the vehicle bike rack and the bike is running.

Abstract: A micro switch adjustment structure for throwing trap includes an adjustment rod that has a connection hole located on one end thereof and coupled to a fastener that fastened a micro switch to an arched through hole on the front bottom side of the throwing trap body and an outer thread located on an opposite end thereof and inserted through a through hole on a rear bracket plate of the throwing trap body, and an adjustment knob having a screw hole threaded onto the outer thread of the adjustment rod such that the adjustment knob is rotatable clockwise or counter-clockwise to move the adjustment rod axially in adjusting the angular position of the micro switch.

Abstract: A foldable frame structure for trailer so designed that the distance between the pivot connection center of each pivot holder and the left/right side frame and the topmost edge of the left/right frame bar of the bottom frame is greater than the distance obtained by deducting the width of the collapsed bottom frame from the height from the left/right frame bar of the bottom frame to the topmost edge of the left/right side frame. Thus, the left side frame and the right side frame can be individually collapsed and closely attached to the bottom frame in one step. The present invention can greatly save the transportation volume and simplify the folding structure and folding action, and thus achieve the purpose of user's convenient collection and carrying.

Abstract: A power free step auto reset clay thrower consisting of a base, a stepping rod, a support, a throwing arm holder, a throwing arm and an elastic member is disclosed. When the stepping rod is depressed, the throwing arm is forced by a first spring to move a link and a first linking member in turning the throwing arm forward for causing generation of a centrifugal force to throw a clay away from the throwing arm. When the throwing arm is thrown forward, the eccentric pivot joint stretches the elastic member. When the pedal is stopped, the elastic member restores the pedal, and the throwing arm is also returned to its original position where the rear side of the sidewall of the throwing arm is stopped by the top side of the trigger arm. Since there is no need to additionally install a motor for driving the throwing arm to restore the position, the invention has the advantages of saving power and environmental protection and can save motor assembly and component costs.

Abstract: A step auto clay thrower consisting of a base, a stepping rod, a support, a throwing arm holder, a throwing arm and a mini motor is disclosed. When the stepping rod is depressed, the throwing arm is forced by a second spring to move a link and a first linking member in turning a shaft and a throwing arm forward for causing generation of a centrifugal force to throw a clay away from the throwing arm, and then a motor shaft of the mini motor is driven to rotate the shaft, thereby returning the throwing arm without any manual operation. In the time the throwing arm throws the clay and the throwing arm is returned by the mini motor, the mini motor does not need to overcome the force of the second spring so that the capacity of the mini motor can be minimized.

Abstract: A trap wobbler includes a base with an inclined bearing seat and a bearing supported on the inclined bearing seat, a trap frame connector pivotally coupled to the bearing of the base for enabling the trap frame connector to be biased relative to the base, and a throwing trap fastened to the trap frame connector. When the throwing arm of the throwing trap is rotated to throw a clay, the inertia force thus generated causes the throwing trap and the trap frame connector to swing left and right. As long as the throwing arm is continuously controlled to continue throwing a clay before stopping of the swinging action of the throwing trap, the left and right swinging motions and amplitudes of the throwing trap is continuously increased.

Abstract: A bipod base consisting of a rail clamp, a first quick-release, a ball joint, first and housing clamps, first and second spherical bushings and a second quick-release. When the second quick-release is loosened, the rail clamp is allowed for 360-degree angular position adjustment with the ball of the ball joint relative to the first and second spherical bushings and the first and second housing clamps. After adjustment, the second quick release handle is biased to fasten tight the first and second housing clamps in locking the first and second spherical bushings that are kept in surface contact with the ball of the ball joint.

Abstract: A bipod dual-mount attachment structure consisting of a leg attachment base, an axle housing, an attachment base, a pivot shaft, a saddle base, a lift control screw, an adjustment knob, a male swivel stud clamp and a female swivel stud clamp. When rotating the adjustment knob clockwise or counter-clockwise, the lift control screw is moved upward or downward to extend out the male and female swivel stud clamps for securing a gun that is equipped with a swivel stud, or to receive the male and female swivel stud clamps for securing a gun that is equipped with a rail, achieving dual use.

Abstract: A bipod consisting of a support frame unit, left and right outer tubes, left and right inner tubes, left and right guide blocks, left and right links, left and right pressure handle holders, left and right ball bearings and left and right torsion springs is disclosed for easy carrying with an attached gun to enhance application flexibility and mobility. The user can use one hand to bias the left/right pressure handle with the left/right inner tube through 360-degrees to any desired angle and then downwardly adjust the elevation of the left/right inner tube relative to the left/right outer tube, or press the left/right pressure handle with one hand. When released the hand from the left/right pressure handle, the balls in the left/right ball bearing are engaged between the top cone of the left/right guide block and the inside wall of the left/right outer tube.