34results about How to "Stable action" patented technology

A business card case comprises a storage case which has a card insertion inlet and a card discharging opening, can accommodate several cards inside and comprises a lower case and an upper case; a card push-up piece for pushing up the stored cards as a whole toward the upper case; a card discharging unit with a component with a locking part for locking the uppermost one of the several cards and provided on the upper case so as to be slidable toward the card discharging opening; a guide part provided close to the card discharging opening so as to incline the tip of the card obliquely downward; and a stopper provided close to the card discharging opening so as to prevent the second and lower cards (from the uppermost one) of the several cards from being pushed out of the card discharging opening.

The invention discloses a key structure, which comprises a key cap, a base and two brackets pivotally connected relative to a rotation axis and connected between the key cap and the base, wherein thekey cap can move vertically relative to the base via the two brackets. The key structure uses additional structural interaction to increase the actuating stability of a component. For example, the keycap and the two brackets can be provided with limiting structures, the sum of the structural interference gaps is maintained within a predetermined range, and thus, the two brackets can actuate smoothly relatively and excessive wear can be avoided. As another example, one of the brackets can be provided with an abutment structure that selectively interferes with the base to limit the highest position of the key cap. The structural configuration of the invention is advantageous for the actuation of the key structure to be stable.

Disclosed is a U-shaped stepping piezoelectric actuator based on an integrative clamping of diamond ring wedges and a method thereof, and the actuator comprises a shell, a u-shaped rod piece which cooperates with the shell through a guide rail, as well as an integrative clamping structure of diamond ring wedges which is fixedly arranged on the center of the shell through a rectangular section beam. Near the bottom of the output base plane, a long pole on the left side of the u-shaped rod piece is embedded a diamond-shaped driving mechanism, wherein the diamond-shaped driving mechanism is provided with a driving piezoelectric stack through the interference fit. The rectangular section beam is arranged on the vertical symmetry axis of the integrative clamping of diamond ring wedges, a clamping diamond ring provided with a clamping piezoelectric stack through the interference fit is provided with the rectangular section beam on one side, and an integrative wedge on the other side, wherein the wedge is capable of contacting closely with the wedge surface inside the u-shaped rod piece. The U-shaped stepping piezoelectric actuator based on integrative clamping of diamond ring wedges adopts a u-shaped folding output device, effectively reducing the structure size and improving the utility rate of space. The critical components of the actuator adopt the processing technology of low speed wire cutting, which has high precision, large tolerance of wearing of clamping structure, and the function of lock up after power off.

The invention discloses a key and a keyboard with the key. The key comprises a bottom plate, an upper cover, a key structure and a joint structure. The key structure is arranged on the bottom plate and comprises a key cap which is exposed out from the upper cover. The joint structure comprises a first joint member and a second joint member; the first joint member comprises a stopping part and a channel which is formed beside the stopping part; the second joint member comprises a connecting part and a bending part which is connected with the connecting part; and the bending part passes through the channel and is stopped by the stopping part, wherein the first joint member and the second joint member are oppositely arranged on the bottom plate and the upper cover so that the bottom plate and the upper cover can be directly jointed through the joint structure. Therefore, according to the key and the keyboard, provided by the invention, the integral structure of the key is simplified in view of the structure stability.

The invention discloses a variable-diameter wheel leg combined wheel structure, which comprises a pair of wheel hubs. The two wheel hubs are of identical structures, the central discs of the wheel hubs are provided with spokes on the circumferences thereof, the two planes with the wheel hubs are parallel to each other, the wheel hubs are connected through a wheel shaft for synchronous movement and are provided with at least four spokes, the output shaft or transmission shaft of a driving steering engine at the terminal of each spoke is connected with a flange through a fastening screw, and the flanges are connected in sequence to form a flanged wheel structure of a round wheel structure and are controlled through the steering engine so as to rotate for 0-120 degree(s) around the output shaft or transmission shaft of the steering engine within the planes of the wheel hubs, thereby realizing the overall or local switching of the wheel structure between the flanged wheel and the non-flanged wheel. The wheel leg combined wheel structure of the invention combines the advantages of the wheel mechanism and the leg mechanism, and has the advantages of high moving speed, stable movement and high barrier-crossing capability; and since the overall or local switching between the flanged wheel and the non-flanged wheel can be realized, the wheel leg combined wheel structure can adapt to a variety of terrains more easily.

The invention provides a U-shaped stepping piezoelectric actuator and method based on a double-clamping-plate outage locking mechanism. The actuator comprises a shell, double clamping plates and a U-shaped rod, wherein two ends of each of the double clamping plates are fixedly connected with the shell; the U-shaped rod penetrates through clamping holes in the double clamping plates; the double clamping plates consist of an upper clamping plate and a lower clamping plate which are inverted to each other; two ends of each of the upper clamping plate and the lower clamping plate are fixedly connected with the shell; the structure of the upper clamping plate is the same as the structure of the lower clamping plate; a recessed arc, a recessed round slot, a clamping piezoelectric stack mounting position and a flexible hinge are arranged in each of the upper clamping plate and the lower clamping plate; during assembling, a small gap is reserved between the upper clamping plate and the lower clamping plate to reduce wear in an actuating process; the U-shaped rod comprises round rods on two sides, an arc-shaped output end and a rhombic driving mechanism, wherein the rhombic driving mechanism is inlaid in the lower part, which is close to the arc-shaped output end, of the round rod on the left side, and the driving piezoelectric stack is in interference fit to the inside of the rhombic driving mechanism. The actuator is provided with a U-shaped output device, the structure size is reduced effectively, the clamping plates are processed by low speed wire cutting process, the precision is high, and moreover, the clamping plates have displacement enlargement and outage locking functions, and are reliable in clamping.

In the present invention, a DC capacitor (10) and a leg (20) are connected in parallel to a high voltage-side power line (PL) and a low voltage-side power line (NL). The leg (20) includes a pluralityof semiconductor switching elements (21, 22) that are connected in series between the power lines, via an output terminal (Nout) which is connected to a load. A damper (30) for damping resonance is connected to a main circuit loop (MLP1, MLP2) formed by the DC capacitor (10), the high voltage-side power line (PL), the low voltage-side power line (NL), the semiconductor switching elements in an ONstate, and the parasitic capacitance between the drain and source of the semiconductor switching elements in an OFF state.

The invention discloses a creeping motion type mini pipeline robot, which comprises a middle stretching part and two supporting parts being able to be supported in the mini pipeline. The two supporting parts are respectively connected with the both ends of the middle stretching part, the supporting parts comprise nut supporting frames and driving devices driving the nut supporting frames to move backward and forward, rear supporting legs are hinged on the driving devices, front supporting legs are hinged on the nut supporting frames, and the rear supporting legs are hinged with the front supporting legs. The creeping motion type mini pipeline robot with enough driving traction force can freely move frontward and rearward in the mini pipeline with an arbitrary slope angle, can also creep in an upright pipeline, and can be embarked an extended function module, to realize the examining, the detecting and the maintenance of the condition in the mini pipeline.