Abstract: A scooter features a rear frame with a rear wheelset and a seat and a front frame with a front wheelset and an upright scooter head rod. A telescopic connection frame is installed between the frames with operating mode and folding mode. A bracing plate assembly has front and rear plate bodies disposed on the telescopic connection frame. The front plate body is pivotally connected to the front frame to form a toggle part, and the rear plate body is pivotally connected to the rear frame. The plate bodies are provided with first and second underpropping parts respectively. The height of the toggle part downwards abutting on the bearer part is sufficient for the underpropping parts to abut each other, and the included angle between the top surfaces of the plate bodies is smaller than 180°, so that the zigzag state between the plate bodies is temporarily locked.

Abstract: A locking device is provided for a scooter when being telescopically collapsed to lock the steering shaft when being folded and to lock a telescopic front frame when being telescopically collapsed. The locking device includes a steering shaft locking unit is coupled to a pivot seat of a telescopic front frame and a pivot portion of the steering shaft. The steering shaft locking unit is at least provided to hold the steering shaft in place when being in a horizontally folded mode. A front frame telescopically collapsed locking unit includes a first positioning portion disposed on a shank section of the steering shaft and a second positioning portion disposed on one of a rear frame and a foldable seat. The first positioning portion and the second positioning portion are engaged to each other for positioning the telescopically collapsed front frame when the steering shaft is in a horizontally folded mode.

Abstract: The telescopic frame structure of a scooter includes: rear and front frame bodies; a telescopic connection frame; a limiting member having front and rear plate bodies disposed above the telescopic connection frame, the front plate body is pivoted to the front frame body through the first pivoting shaft member, the rear plate body is pivoted to the rear frame body through the second pivoting shaft member, and the front plate body is pivoted to the rear plate body through the second pivoting shaft member. The axle center definition of the first, second and third pivoting shaft member respectively forms the first, second and third pivoting axis. The connecting definition between the first and second pivoting axes forms a virtual connecting axis corresponding to the third pivoting shaft member defines an intermediate line section. The height of the third pivot axis is lower than the intermediate line section.

Abstract: A locking device is provided for a scooter when being telescopically collapsed to lock the steering shaft when being folded and to lock a telescopic front frame when being telescopically collapsed. The locking device includes a steering shaft locking unit is coupled to a pivot seat of a telescopic front frame and a pivot portion of the steering shaft. The steering shaft locking unit is at least provided to hold the steering shaft in place when being in a horizontally folded mode. A front frame telescopically collapsed locking unit includes a first positioning portion disposed on a shank section of the steering shaft and a second positioning portion disposed on one of a rear frame and a foldable seat. The first positioning portion and the second positioning portion are engaged to each other for positioning the telescopically collapsed front frame when the steering shaft is in a horizontally folded mode.

Abstract: A wheelchair structure includes a wheelchair frame, an auxiliary drive device and a combined frame. The combined frame has an assembly base frame, a moveable rack assembly and an elastic support. The assembly base frame has a horizontal hack lever, at least a plug-in rod section, a positioning end and object fixed seat assembly portion. The sleeving portion of the moveable rack assembly is inserted into the holding space of the plug-in rod section, and a limiter is used to prevent the moveable rack assembly from disengagement. The moveable rack assembly is provided with a limiting end. With this configuration, when the limiting end is abutted onto the positioning portion, the positioning end of the horizontal hack lever can be locked onto the assembly position. With this simple and efficient structure, the user can be benefitted from rapid assembly and ease-of-operation with improved applicability.

Abstract: The present invention provides a quick-release mechanism of assembly structure, of which said quick-release mechanism includes an exterior sleeve, expansion link sections, a threading portion of driving section, elastic part and a brake. The expansion link sections are arranged at interval into the holding space of the exterior sleeve. At least one elastic part is arranged into the holding space of the exterior sleeve, enabling retraction or protruding of the expansion link sections. The present invention is characterized in that the driving section of the brake is mated with the threading portion of driving section, so that the brake can drive the expansion link section to control the actuating state of the positioning end in either positioning or release mode. With this configuration, the users can dismantle or operate the device easily in either positioning or release mode.

Abstract: An assembly and positioning mechanism for wheelchair and auxiliary operating lever. The assembly and positioning mechanism has a swinging angular adjustment seat and a liftable pivoting seat of operating lever. The angular adjustment seat has an assembly side of locating rack and an assembly side of pivoting seat. The assembly side of locating rack is pivoted onto the locating rack via an adjuster, and the angular adjustment seat can swing rotarily. The pivoting seat of operating lever consists of a connecting side and a mating side of operating lever. The pivoting seat of operating lever can move vertically via a limiting portion. The mating side of operating lever is fitted with a limiting rabbet and a guide opening extended in an outward-dipping state. The mechanism can swing and also shift vertically, making it possible to control the guide opening of the mating side of operating lever for outward-dipping extension.

Abstract: An assembly and positioning mechanism for wheelchair and auxiliary operating lever. The assembly and positioning mechanism has a swinging angular adjustment seat and a liftable pivoting seat of operating lever. The angular adjustment seat has an assembly side of locating rack and an assembly side of pivoting seat. The assembly side of locating rack is pivoted onto the locating rack via an adjuster, and the angular adjustment seat can swing rotarily. The pivoting seat of operating lever consists of a connecting side and a mating side of operating lever. The pivoting seat of operating lever can move vertically via a limiting portion. The mating side of operating lever is fitted with a limiting rabbet and a guide opening extended in an outward-dipping state. The mechanism can swing and also shift vertically, making it possible to control the guide opening of the mating side of operating lever for outward-dipping extension.

Abstract: The present invention provides a quick-release mechanism for the wheelchair and auxiliary operating lever. The quick-release mechanism includes a pivoting seat of the operating lever, limiting rabbet and snapping rod. The pivoting seat of operating lever is provided with convex lug, and the limiting rabbet with mouthed profile is arranged at the front of the convex lug. The limiting rabbet forms a guide opening and a bracing flange. The guide opening is extended in an outward-dipping state. A snapping rod is arranged transversely onto the operating lever. The present invention allows to save the components and realize rapid removal and assembly with improved applicability.

Abstract: The present invention provides a wheelchair structure, which is available with a handle, seat and wheel body. The handle is provided with an integrated control seat, and the wheel body is provided with auxiliary drive unit and combined positioning member. The integrated control seat can be assembled securely onto the wheelchair handles of different diameters and curvatures, and the swinging angle can be adjusted flexibly. Thus, it is possible to guarantee outstanding adaptability of assembly, efficient and convenient operation with improved applicability.

Abstract: The present invention provides a wheelchair structure, which is available with a handle, seat and wheel body. The handle is provided with an integrated control seat, and the wheel body is provided with auxiliary drive unit and combined positioning member. The integrated control seat can be assembled securely onto the wheelchair handles of different diameters and curvatures, and the swinging angle can be adjusted flexibly. Thus, it is possible to guarantee outstanding adaptability of assembly, efficient and convenient operation with improved applicability.

Abstract: A rapid assembly structure for the scooter body of an electric scooter improves and modifies on some current devices of the scooter body to achieve a stable and rapid assembly structure, and thus facilitate to carry and store up the electric scooter. The assembly structure includes a front body and a rear body. A fastening means is provided between the front body and a rear body for fixing the front body and the rear body. A locking device is provided on the front body for enhancing the fixing effect between the front body and the rear body.

Abstract: The improved battery positioning structure of an electric vehicle includes a flexible pull handle, being mounted at one side of a battery and forming a handle portion and at least one snapping portion. The snapping portion can protrude from the hole at one side of the battery and is recessed if the handle portion is pulled upwards. A positioning groove is placed onto a side wall of the chamber and is used for positioning of the snapping portions. When the battery is removed, the handle portion of the flexible pull handle is pulled to enable the snapping portions to be disengaged from the positioning groove, thus releasing the battery. The batter can be quickly lifted via the handle portion. When the battery is returned to be positioned in the chamber, the handle portion is pressed to enable the snapping portions to be fixed securely into the positioning groove. Thus, the battery of the electric vehicle can be removed and positioned more simply, quickly and conveniently.

Abstract: A rapid assembly structure for the scooter body of an electric scooter improves and modifies on some current devices of the scooter body to achieve a stable and rapid assembly structure, and thus facilitate to carry and store up the electric scooter. The assembly structure includes a front body and a rear body. A fastening means is provided between the front body and a rear body for fixing the front body and the rear body. A locking device is provided on the front body for enhancing the fixing effect between the front body and the rear body.

Abstract: A rapid-assembly battery structure of an electric scooter is disclosed. The rapid-assembly battery structure of the present invention comprises a scooter body. An accommodating tank is provided in an upper portion of the scooter body so as to accommodate a battery housing. Two electricity-conductive pieces are provided on the interior bottom surface of the accommodating tank, and two electrode plates are provided on the underside of the battery housing so that the battery may be electrically connected with the scooter after the battery housing is fitted into the accommodating tank. The top surface of the battery is provided with a handle so that a user may use the handle to move the battery housing around. Also, another battery housing may be additionally mounted on top of the battery housing so as to be used as a spare battery.

Abstract: A liftable seat frame of an electric scooter includes a scooter body provided with a plurality of wheels on the bottom thereof, a driving device provided at a suitable position on the scooter body, at least one supporting pillar extended from a suitable position on the scooter body and around the periphery of the driving device, a frame provided at a suitable position on an upper end of the driving device, one end of which being pivotably connected to the supporting pillar, and a seat provided on the frame. According to the above structure, the seat is supported by the frame, and thus the driving device can be exposed and easily maintained by using the supporting pillar as a center of rotation to pivotably lift the frame and the seat thereon.

Abstract: A safely assistant wheel structure of a power-driven wheelchair having a body under which a front wheel and a rear wheel are provided, in which a front end of the front wheel is provided with an assistant wheel of which an axle center is provided for a holder to stretch through above which a fixed link is provided stretching from the body, and a shock absorber spring is provided between the holder and the fixed link, when the forward moving power-driven wheelchair is suddenly braked, an inertial, a forward leaning force of the body is eliminated by the assistant wheel and detracted by the spring for the stability of wheelchair body and the safe ride of a rider.

Abstract: The present invention discloses a portable labor-saving battery device for a electric vehicle, said battery device capable of providing power when installed on said electric vehicle. User is able to disassemble said battery device, drag and recharge said battery independently without much effort. Furthermore, said battery device is used as shopping cart to provide more functionality. Said battery device mainly comprises a battery set having a socket for recharge and a contact on a bottom of said battery set for connecting to said electric vehicle, a cap implemented on a bottom of a upper surface of said battery set, said cap lying next to said upper surface of said battery set when folded up and providing a load-bearing space when bent down. A wheel set is implemented on a bottom of a lower surface of said battery set for providing mobility.