31results about How to "No jumping" patented technology

The invention relates to an inflation-free hollow wheel and an assembly method thereof. The wheel comprises a wheel rim and a tyre sleeving the outer side of the wheel rim, wherein an annular space formed between the inner side of the tyre and the outer side of the wheel rim is internally provided with a plurality of frameworks for supporting the tyre; the frameworks are pressed inside the tyre; two ends of each framework are respectively restricted inside the convex edge of the wheel rim and the check ring of the wheel rim. The inflation-free hollow wheel has a favorable shock-absorption buffer effect, is capable of effectively solving the problems of tyre burst and frequent inflation of the wheel, and enhancing the comfort, safety and convenience in running of a vehicle with the wheel and taking-off and landing of an airplane.

Disclosed are a hydraulic variable-flow device with two parallel pumps and a rubber mixing mill roller driving system. The hydraulic variable-flow device with the two parallel pumps comprises a first hydraulic pump, a second hydraulic pump, a first one-way valve, a proportional flow control valve, a second one-way valve, a control valve, an actuating mechanism, loading equipment, a pressure control valve, a pressure sensor, a speed sensor, a controller, a variable-frequency governor of a first hydraulic pump driving motor and a control mechanism of a second hydraulic pump driving motor, wherein a pressure oil port of the control valve is connected with oil outlets of the first one-way valve and the second one-way valve, the actuating mechanism is connected with a working oil port of the control valve, the loading equipment is connected with the actuating mechanism, the pressure control valve is connected with an oil inlet pipeline of the pressure oil port of the control valve, the pressure sensor is used for detecting pressure of the oil inlet pipeline of the pressure oil port of the control valve, the speed sensor is used for detecting movement of the loading equipment, pressure signals detected by the pressure sensor and speed signals detected by the speed sensor are inputted to the controller, and the output end of the controller is electrically connected with the variable-frequency governor of the first hydraulic pump driving motor, the proportional flow control valve and the control mechanism of the second hydraulic pump driving motor.

The invention discloses an automatic lock, which comprises a lock case, a spring bolt component, a swing piece and a trigger component, wherein a locking part, which is arranged in a part in the lock case, is arranged on the spring bolt component; a swing shaft is arranged on a position, which is more biased to a lock-out direction than the locking part on a lock-in terminal position, and the swing piece is provided with a butting part; the spring bolt component is provided with a space, which is capable of further moving to the lock-in direction under the thrust of the trigger component, in the lock-in state; rotating partial pressure, which tends to rotate to the lock-out direction, is applied to the swing piece, and lock-out partial pressure, which is capable of pushing the spring bolt component out along the lock-out direction, is applied to the spring bolt component; self-locking pressure is formed between the locking part and the butting part on the lock-in position by the rotating partial pressure and the lock-out partial pressure. The automatic lock solves the technical problem of complicated structure of the automatic lock in the prior art, so that the automatic lock with the simple structure is further provided.

The invention discloses a novel method for asynchronous pipeline topographic drawing and belongs to the technical field of digital topographic drawing. Drawing pipelines of the method sequentially comprise three steps of data preparation, CPU operation and GPU operation, wherein the method comprises three parallel drawing pipelines at the same time; and the three pipelines perform different stepsat the same time. The data preparation step comprises requiring data of a local disk or network, receiving data and organizing data. The CUP operation step comprises building a tree and performing geometrically gridding operation. The method can be used for topographic drawing and has the advantages of quickness, delay elimination, smooth frame rate, controllability and the like.

The present invention provides an AC-DC control chip, and also provides an AC-DC flyback controller including the chip; the AC-DC control chip in the embodiment of the present invention includes a reset / set (RS) flip-flop, respectively connected to the RS The trigger is electrically connected to the opening signal module, the closing signal module, the overload protection module and the driving module; the output terminal of the opening signal module is connected to the S terminal pin of the RS flip-flop, and the output terminal of the closing signal module is connected to the RS trigger The R terminal pin of the device is connected, the input terminal of the driving module is connected with the Q terminal pin of the RS flip-flop; the opening signal module is used to adjust the output frequency of the feedback voltage FB to the opening signal module according to the continuous change of the voltage value of the output voltage Control to achieve continuous and smooth changes in output frequency.