Abstract: A self-stabilizing vehicle includes a mass gyroscope which is fixed at an occupant compartment chassis corresponding to a portion where occupants sit. The occupant compartment portion may tilt outwards in response to the centrifugal force. If the vehicle has three or more wheels, the load is evenly distributed on the left wheel and the right wheel which move oppositely up and down about an effectively centrally-mounted shaft pin. Further, the present disclosure proposes a method for operating the self-stabilizing vehicle. According to the self-stabilizing vehicle and the operating method thereof, a vehicle having a narrow body may be used. When the vehicle undergoes external forces such as the centrifugal force and the crosswind, the occupant compartment can maintain the vertical stability even though the wheels may slide sideways.

Abstract: A folding joint and a folding bicycle frame are provided. The folding joint includes a hand lever, a first joint connected to a first connecting member, and a second joint connected to a second connecting member, where the hand lever is hinged to the first joint and/or the second joint. When the first joint and the second joint are in a closed position, the hand lever is rotated to a first position. When the first joint and the second joint are in a separated position, the hand lever is rotated to a second position. The hand lever is provided with a first engaging portion. When the hand lever is in the first position, the first engaging portion is configured to engage with a second engaging portion to restrict the first joint and the second joint to be in the closed position.

Abstract: A self-stabilizing vehicle includes a mass gyroscope which is fixed at an occupant compartment chassis corresponding to a portion where occupants sit. The occupant compartment portion may tilt outwards in response to the centrifugal force. If the vehicle has three or more wheels, the load is evenly distributed on the left wheel and the right wheel which move oppositely up and down about an effectively centrally-mounted shaft pin. Further, the present disclosure proposes a method for operating the self-stabilizing vehicle. According to the self-stabilizing vehicle and the operating method thereof, a vehicle having a narrow body may be used. When the vehicle undergoes external forces such as the centrifugal force and the crosswind, the occupant compartment can maintain the vertical stability even though the wheels may slide sideways.

Abstract: A self-stabilizing vehicle includes a mass gyroscope which is fixed at an occupant compartment chassis corresponding to a portion where occupants sit. The occupant compartment portion may tilt outwards in response to the centrifugal force. If the vehicle has three or more wheels, the load is evenly distributed on the left wheel and the right wheel which move oppositely up and down about an effectively centrally-mounted shaft pin. Further, the present disclosure proposes a method for operating the self-stabilizing vehicle. According to the self-stabilizing vehicle and the operating method thereof, a vehicle having a narrow body may be used. When the vehicle undergoes external forces such as the centrifugal force and the crosswind, the occupant compartment can maintain the vertical stability even though the wheels may slide sideways.

Abstract: A folding device for folding or disassembling rigid objects is provided with engaged toothed rows on opposing surfaces of two connecting plates. Opposite surfaces of protruded teeth of the toothed rows are provided with toothed grooves meshing with each other. When a locking mechanism perpendicular to a direction of the toothed rows is locked, the two connecting plates are driven by the locking mechanism to move toward each other in opposite directions along a pulling rod, so that the toothed grooves on the toothed rows tightly engage with one another, and the two connecting plates are pressed tightly and fixedly connected. When the folding device is in a connected state, meshing surfaces of the two connecting plates tightly mesh with each other through the corresponding toothed grooves, so that the two connected parts are combined together to form a whole rigid combination.

Abstract: A self-stabilizing vehicle includes a mass gyroscope which is fixed at an occupant compartment chassis corresponding to a portion where occupants sit. The occupant compartment portion may tilt outwards in response to the centrifugal force. If the vehicle has three or more wheels, the load is evenly distributed on the left wheel and the right wheel which move oppositely up and down about an effectively centrally-mounted shaft pin. Further, the present disclosure proposes a method for operating the self-stabilizing vehicle. According to the self-stabilizing vehicle and the operating method thereof, a vehicle having a narrow body may be used. When the vehicle undergoes external forces such as the centrifugal force and the crosswind, the occupant compartment can maintain the vertical stability even though the wheels may slide sideways.

Abstract: A folding device for folding or disassembling rigid objects is provided with engaged toothed rows on opposing surfaces of two connecting plates. Opposite surfaces of protruded teeth of the toothed rows are provided with toothed grooves meshing with each other. When a locking mechanism perpendicular to a direction of the toothed rows is locked, the two connecting plates are driven by the locking mechanism to move toward each other in opposite directions along a pulling rod, so that the toothed grooves on the toothed rows tightly engage with one another, and the two connecting plates are pressed tightly and fixedly connected. When the folding device is in a connected state, meshing surfaces of the two connecting plates tightly mesh with each other through the corresponding toothed grooves, so that the two connected parts are combined together to form a whole rigid combination.

Abstract: A wrench tool comprises a tool rod and an operating rod. The tool rod is 7-shaped, and comprises a tool head part and a connecting rod part. The connecting rod part is provided with a hinge portion. The hinge portion is provided with a first hinge hole. One end of the operating rod is provided with a tool seat capable of accommodating the hinge portion. The tool seat is provided with a second hinge hole. The tool seat and the hinge portion are hinged together by a pin running through the first hinge hole and the second hinge hole. The wrench tool is simple in structure and flexible in use. Flattening and curling measures are applied to the tool rod, so as to reduce the weight of the tool rod and improve the strength of the tool rod.

Abstract: A manually operated pump for supplying air to a bicycle comprises an outer tube with one end closed and the other end open. A core tube slides in the outer tube and has a piston assembly on one end and an end socket on the other. There is a hose which slides in the core tube. One end of the hose is connects with an air needle, and the other end connects with an air nozzle assembly. The piston assembly comprises a piston, a piston ring, and a one-way valve communicating with the core tube and the outer tube. A narrowing port is formed in the end socket of the core tube. A foot stand is hinged on an outer side of the end socket of the core tube. The air needle has a head matching the narrowing port.

Abstract: Disclosed is a spanner tool for mounting or dismounting components, which comprises a control piece (2), a connecting piece (1) and a rotating piece (3). The connecting piece (1) is hinged with one end of the control piece (2) and one end of the rotating piece (3) respectively. An angle ? formed between the control piece (2) and the connecting piece (1) is less than an angle ? formed between the rotating piece (3) and the connecting piece (1) when the control piece (2) and the rotating piece (3) respectively rotate to limit positions at different sides of the connecting piece (1). The spanner tool is practical and reliable. The spanner tool is convenient and rapid-in-use. The spanner tool can be folded for portability when not in use. Additionally, locking tightness of the tool can be adjusted by adjusting a nut.

Abstract: A wrench tool comprises a tool rod and an operating rod. The tool rod is 7-shaped, and comprises a tool head part and a connecting rod part. The connecting rod part is provided with a hinge portion. The hinge portion is provided with a first hinge hole. One end of the operating rod is provided with a tool seat capable of accommodating the hinge portion. The tool seat is provided with a second hinge hole. The tool seat and the hinge portion are hinged together by a pin running through the first hinge hole and the second hinge hole. The wrench tool is simple in structure and flexible in use. Flattening and curling measures are applied to the tool rod, so as to reduce the weight of the tool rod and improve the strength of the tool rod.

Abstract: What is disclosed is a quickly foldable bicycle. A front arm and an intermediate arm are hinged together; the intermediate arm is fixed on the intermediate tube; a rear fork is hinged on the intermediate tube or on the intermediate arm; a seat tube is slidably sleeved inside the intermediate tube; a connecting rod seat is provided at a lower end of the seat tube; a first joint bearing at the front end of the front connecting rod is connected to a fixing seat at a lower side of the front arm; a second joint bearing at the rear end of the front connecting rod is connected to the connecting rod seat; and two ends of the rear connecting rod are hinged to the rear fork and the connecting rod seat respectively. The bicycle can be folded quickly, has a firm structure, is easy to produce and is eye-pleasing.

Abstract: A reinforcing and locking device for vehicle frame includes a reinforcing component (2), a connecting component and an eccentric locking component, the vehicle frame comprises a beam (1) and a seat tube (3). The beam (1) can be folded into at least two segments (11, 12). A hinge axle (81), through which various segments of the vehicle beam (1) are hinged with each other, is provided vertically. The reinforcing component (2) is connected to the beam (1) and the seat tube (3). The seat tube (3) is provided with a connecting component. A front end of the reinforcing component (2) is hinged with a front segment (11) of the beam (1), and a rear end of the reinforcing component (2) is connected with the seat tube (3) through the connecting component. The reinforcing and locking device for vehicle frame has good stability, simple structure and low cost.

Abstract: A manually operated pump for supplying air to a bicycle comprises an outer tube with one end closed and the other end open; a core tube which can slide in the outer tube and is provided with a piston assembly on one end; and a hose which can slide in the core tube. One end of the hose is connected with an air needle, and the other end is connected with an air nozzle assembly. The piston assembly comprises a piston, a piston ring, and a one-way valve communicating with the core tube and the outer tube. An end socket is provided on the other end of the core tube. A narrowing port is formed in the end socket of the core tube. A foot stand is hinged on outer side of the end socket of the core tube. The air needle has a head matching the narrowing port.

Abstract: What is disclosed is a quickly foldable bicycle. A front arm and an intermediate arm are hinged together; the intermediate arm is fixed on the intermediate tube; a rear fork is hinged on the intermediate tube or on the intermediate arm; a seat tube is slidably sleeved inside the intermediate tube; a connecting rod seat is provided at a lower end of the seat tube; a first joint bearing at the front end of the front connecting rod is connected to a fixing seat at a lower side of the front arm; a second joint bearing at the rear end of the front connecting rod is connected to the connecting rod seat; and two ends of the rear connecting rod are hinged to the rear fork and the connecting rod seat respectively. The bicycle can be folded quickly, has a firm structure, is easy to produce and is eye-pleasing.

Abstract: Disclosed is a spanner tool for mounting or dismounting components, which comprises a control piece (2), a connecting piece (1) and a rotating piece (3). The connecting piece (1) is hinged with one end of the control piece (2) and one end of the rotating piece (3) respectively. An angle ? formed between the control piece (2) and the connecting piece (1) is less than an angle ? formed between the rotating piece (3) and the connecting piece (1) when the control piece (2) and the rotating piece (3) respectively rotate to limit positions at different sides of the connecting piece (1). The spanner tool is practical and reliable. During use, a user does not need to swing his/her arm and only needs to rotate his/her wrist to operate the spanner tool, so the spanner tool is convenient and rapid-in-use. The spanner tool can be folded for portability when not in use. Additionally, locking tightness of the tool can be adjusted by adjusting a nut.

Abstract: An adjusting mechanism for the handle position of a bicycle includes an upper cover (2) and a lower cover (3), which clamp the handle, and a handle vertical pipe (5) fastened on the front fork by a retaining mechanism. One side of the upper cover and one side of the lower cover for clamping the handle are connected with each other, and the other sides can be interlocked by an independent retaining mechanism. The top of the handle vertical pipe is provided with steps (6), and the lower cover is sleeved outside the handle vertical pipe and arranged below the steps at the top of the handle vertical pipe.

Abstract: A reinforcing and locking device for vehicle frame includes a reinforcing component (2), a connecting component and a locking component, the vehicle frame comprises a beam (1) and a seat tube (3). The beam (1) can be folded into at least two segments (11, 12). A hinge axle (81), through which various segments of the vehicle beam (1) are hinged with each other, is provided vertically. The reinforcing component (2) is connected to the beam (1) and the seat tube (3). The seat tube (3) is provided with a connecting component. A front end of the reinforcing component (2) is hinged with a front segment (11) of the beam (1), and a rear end of the reinforcing component (2) is connected with the seat tube (3) through the connecting component.

Abstract: An adjusting mechanism for the handle position of a bicycle includes an upper cover (2) and a lower cover (3), which clamp the handle, and a handle vertical pipe (5) fastened on the front fork by a retaining mechanism. One side of the upper cover and one side of the lower cover for clamping the handle are connected with each other, and the other sides can be interlocked by an independent retaining mechanism. The top of the handle vertical pipe is provided with steps (6), and the lower cover is sleeved outside the handle vertical pipe and arranged below the steps at the top of the handle vertical pipe.

Abstract: The present invention discloses a folding bicycle comprising a head and a frame, wherein the head includes a handlebar, a handlebar stem, a folding joint, and a front fork, and the front fork has two fork blades each of which is inwardly recessed. When the handlebar is folded downwards with the handlebar stem, the handlebar can be further folded and placed in the recess of the fork blade without interfering with the fork blade. Thus, the folding bicycle can be further folded with a less folded volume.