48results about How to "Enough thrust" patented technology

The invention provides a sacculus dilatation catheter for blood vessel dilatation surgery. The sacculus dilatation catheter comprises a sacculus, a push rod, an inner tube and a connecting device, wherein the push rod is positioned between the sacculus and the connecting device and connects the sacculus and the connecting device, and the inner tube extends and passes through the internal spaces of the sacculus and the push rod. The sacculus dilatation catheter is characterized in that: at least one of the push rod and the inner tube is made of weaving silk reinforcing tube. The sacculus dilatation catheter can smoothly pass through circuitous, diffuse calcification and even long-segment occlusive blood vessels in vascular disease interventional therapy surgery.

The invention discloses a shielding sliding shoe curvilinear pushing-up hole-passing construction method, which comprises the following construction steps: laying a sliding shoe (1); punching reaction holes (2); anchoring a multi-support leg reaction frame (3) into the reaction holes (2); regulating a shielding machine (6); transporting a segment by a crane; pushing the segment; transporting a second segment by the crane, and meanwhile, arranging a plurality of force transfer steel beams (4); pushing the segment, integrating the segment and the force transfer steel beams (4), transferring out the force transfer steel beams (4) after a jack is contracted, and jacking the jack again to closely attach the second standard shielding segment to the first standard shielding segment. The method generally has the beneficial effects that a good linear control function is realized; the ratio of the weight of the shielding machine to pushing force is relatively greater, and the pushing-up requirement of a large shielding machine is met; the segment splicing amount is minimum, and materials are saved.

The invention discloses a surface plasma resonance and electron cyclotron resonance double-excitation type microwave thruster, relates to the technical field of spacecraft power, and relates to the thruster which is based on low-temperature non-equilibrium plasma, namely surface plasma, resonance and electron cyclotron resonance and is applied to a microsatellite power system for performing the tasks of satellite formation, deep space exploration and the like. The surface plasma resonance and electron cyclotron resonance double-excitation type microwave thruster is fixed into a vacuum environment through a thruster supporting frame, and comprises a permanent magnet ring, a discharge chamber, a metal antenna and a tail spraying pipe; the permanent magnet ring is mounted at the external part of the discharge chamber in a sleeving manner; the metal antenna is embedded into the interior of the discharge chamber; the permanent magnet ring is embedded into the thruster supporting frame; the tail spraying pipe is butted with an outlet of the discharge chamber. The surface plasma resonance and electron cyclotron resonance double-excitation type microwave thruster has the characteristics of being novel in structure, convenient in machining, small in size, high in stability, strong in specific impulse, long in thruster service life and the like.

The invention relates to a vectored thrust ducted propeller. The vectored thrust ducted propeller comprises a screw propeller and a duct cylinder body, wherein the screw propeller can rotate to generate air currents and the duct cylinder body surrounds the screw propeller; a first rotating piece, a second rotating piece and a blocking piece which are arranged in an air current deflection mechanism are respectively and directly derived from a part of a duct body; a complete duct is jointly formed by the first rotating piece, the second rotating piece, the blocking piece and the duct cylinder body part. Under the driving of a speed reducing motor, a rotation driving shaft is rotated, so that the first rotating piece and the second rotating piece are driven to rotate to expected positions; the blocking piece moves forward and backward along a sliding groove formed in the duct cylinder body to prevent the air currents from flowing out of the right side of the duct, and the blocking piece is matched with the first rotating piece and the second rotating piece so that the air currents can flow out of the remained empty part formed after the first rotating piece is rotated; therefore, the whole system bears lateral force which is reversed to the air currents. According to the vectored thrust ducted propeller disclosed by the invention, the thrust direction of a ducted fan is substantially changed, large enough lateral force is provided for an aircraft to balance the reaction torque of a main rotor, so that the residual thrust in the axial direction of the aircraft is as small as possible, and more suitable for the aircraft of the type to ascend and descend perpendicularly and hang in the air.

The invention discloses a swing mechanism. The swing mechanism is used for driving a distributing valve of a concrete pumping device to swing and comprises a swing arm for driving the distributing valve and two hydraulic oil cylinders for driving the swing arm to swing from side to side. Ends of the two hydraulic oil cylinders are respectively connected with the left side and the right side of the swing arm, and the hydraulic oil cylinders are two-stage hydraulic oil cylinders. The invention further discloses the concrete pumping device comprising the swing mechanism. According to the swing mechanism and the concrete pumping device with the swing mechanism, the reversing speed is quick, impact is small, reversing time of the swing mechanism is close to reversing time of a main oil cylinder of the concrete pumping device, and pumping continuity is greatly improved.

The invention discloses a shield driving mode suitable for a soft-hard uneven stratum. The shield driving mode comprises open type driving, half-open type driving and full earth pressure type driving.The open type driving is a shield driving mode in which no pressure needs to be maintained in an earth bin. Full earth pressure type driving is a shield driving mode in which during shield excavation, earth in the earth bin is pressurized through driving muck, or earth pressure of the excavation face and the pressure of underground water are balanced by pressure generated by injected auxiliary materials, stability of the working face is maintained, and thus ground depression caused by tunnel face collapse or too much stratum water loss is avoided. The half-open mode is between the open type and the full earth pressure type modes. Through a conversion method provided by the invention, a corresponding driving mode can be obtained through conversion according to different strata, and corresponding control parameters are selected.

The invention discloses a large yellow croaker feed automatic feeding device. The device comprises a base, a battery and a hydraulic station are fixed at the upper end of the base, and a horizontal hydraulic cylinder is fixed at the upper end of the base; a vertical rod is fixed to the edge of a hydraulic rod of the hydraulic cylinder, and a rib plate is fixed between the vertical rod and the hydraulic rod of the hydraulic cylinder; an electromagnet is fixed at the upper end of the vertical rod, a support A is fixed at the upper end of the base, and a horizontal steel tube is fixed at the upper end of the support A; a stop block is fixed at the upper end of an inner ring of the steel tube, and a piston connected with the steel tube in a sliding mode is arranged in the steel tube; a rubberblock is fixed to the side, close to the stop block, of the piston. According to the device, fish feed falling is accelerated through a vibrator, the falling speed of fish feed is ensured, the feedingspeed of the fish feed is ensured, and the feeding efficiency is improved; through continuous movement of the hydraulic cylinder and the electromagnet, enough thrust force is ensured so that the fishfeed can reach a designated position, operation of a breeder is facilitated, and convenience is brought to the breeder.

The invention provides a device for cleaning dirt on the surface layer of a high-tension transmission line. The device includes a dust removal base, a suspension mechanism arranged on the dust removalbase, a moving mechanism arranged on the dust removal base, an auxiliary support mechanism arranged on the dust removal base, a dust removal mechanism, a collection mechanism, and a control mechanism, wherein the dust removal mechanism and the collection mechanism are arranged on the dust removal base, and the control mechanism is arranged on the dust removal base and used for coordinated controlof the suspension mechanism, the moving mechanism, the auxiliary support mechanism and the dust removal mechanism. The device can carry out large-scale ash removal operation on the transmission line,the dust removal effect is better, workers do not need to climb up and down, the safety is high, the dust removal operation is achieved by taking power from the line, and the device is light, long inservice life, low in cost and use cost, and very good in effect.

The invention discloses a concealed repair device for subway tunnel deformation detection based on a total station, which comprises subway shield tunnel segments, a positioning box, an infrared distance measuring mechanism, a reset mechanism and an auxiliary mechanism, wherein the subway shield tunnel segments are mounted in a subway tunnel, and a plurality of groups of subway shield tunnel segments form a cylindrical structure; the positioning box is placed in the subway shield tunnel segments; the infrared distance measuring mechanism mounted on the outer side of the positioning box is used for measuring the repair deformation distance; the reset mechanism is arranged in the positioning box; and the auxiliary mechanism and the reset mechanism are arranged correspondingly, and the transverse central axis of the auxiliary mechanism is perpendicular to the longitudinal central axis of a fixing cylinder. The concealed repair device for subway tunnel deformation detection based on the total station has enough tensioning force, is high in overall repairing work efficiency, can carry out quantitative repair and an avoid the situation of excessive repair or insufficient repair.

The invention provides a remote controller battery bin cloth strip mounting device and a mounting method thereof. The remote controller battery bin cloth strip mounting device comprises a battery bin, a cloth strip hole which is formed in the battery bin and used for mounting a cloth strip, and a circumferential rib part which is arranged at the periphery of the cloth strip hole, made of rubber and is used for fixing the cloth strip by hot ironing. According to the remote controller battery bin cloth strip mounting device, the circumferential rib part can be melted and used for well fixing the cloth strip in the remote controller battery bin; and the device is convenient for industrialization and low in cost, and has high efficiency and long service life.

The invention relates to a construction method for reinforcing an existing line-spanning bridge by newly-added pier stud bearing steel trussed beams. The construction method comprises the steps of 1,constructing an under-bridge supporting system at the bottom of the bridge; 2, dismantling bridge deck pavement, bridge deck slabs and handrails at sidewalks on the two sides of the original bridge; 3, performing mounting operation of the prestress pushing system below the bridge; 4, pushing out and dismounting the concrete longitudinal beams on the two sides of the bridge through a prestress pushing system; 5, pushing the lower chords of the steel longitudinal beams to specified positions through a pushing system, welding the upper chords and the lower chords, and welding the steel longitudinal beams of the adjacent sections; 6, vertically jacking the steel longitudinal beams; and 7, recovering the structure of the bridge floor, and removing the pushing system. The method has the beneficial effects that a steel longitudinal beam pushing system is adopted for construction, the construction operation is mainly carried out under the bridge, the space of the bridge floor does not need tobe occupied, and therefore the influence on traffic is reduced.

The invention relates to a positioning locking device for a steel discharging machine. The positioning locking device comprises a stop pin, an upper positioning seat and a lower positioning seat and is characterized in that a pinion and a pull rod nut gear in a telescopic driving mechanism are arranged in a shell in parallel and in a side-by-side manner, and the pinion is in engagement transmission with the pull rod nut gear; a pinion shaft is mounted in the center of the pinion, the two ends of the pinion shaft are respectively mounted in two small bearing caps through a bearing support, the two small bearing caps are respectively fixedly mounted on the shell, and the shaft extension end of the pinion shaft is connected with an output shaft of a motor speed reducer; and a pull rod nut is fixedly mounted in the center of the pull rod nut gear, the two ends of the pull rod nut are respectively mounted in two pull rod bearing caps through the bearing support, the two pull rod bearing caps are respectively fixedly mounted on the shell, a threaded pull rod penetrates through the center of the pull rod nut, and the front end of the threaded pull rod is connected with the rear end of the stop pin. The structure is simple, compact and reasonable, positioning conveyed steel blanks can be carried out, the smooth discharging of the steel blanks is ensured, and the work efficiency is improved.

The invention relates to an automatic spring piece assembling mechanism. The automatic spring piece assembling mechanism comprises a supporting seat with a spring piece clamping groove used for containing a to-be-mounted spring piece, a first pushing mechanism and a second pushing mechanism, wherein the first pushing mechanism comprises a first pushing rod and a first driving part, and the first pushing rod can be driven by the first driving part to move towards the supporting seat; and the second pushing mechanism comprises a second pushing rod and a second driving part, and the second pushing rod can be driven by the second driving part to move towards the supporting seat. The automatic spring piece assembling mechanism has the beneficial effects that the two sets of pushing rods are arranged, the first set of pushing rod is large in push face and can provide enough push force and enough stable support for the spring piece, the second set of pushing rod is small in push face and can stretch into a product shell, and through the two pushing steps, installation of the spring piece in a narrow space is effectively achieved.

The invention discloses a wide velocity domain variable geometry air inlet. The start mach number of a hypersonic velocity air inlet is greatly lowered through a rotary hypersonic velocity air inlet lip and a third-stage top plate. A good traffic capture capacity can be guaranteed when the mach number of the hypersonic velocity air inlet is small, and in other words, motor power is guaranteed.

The present invention provides an apparatus for removing overhead line entanglements. The apparatus for removing overhead line entanglements comprises a base, a suspension mechanism arranged on the base, a moving mechanism arranged on the base, an entanglements removing mechanism arranged on the base, and a control mechanism arranged on the base and used for controlling the suspension mechanism, the moving mechanism and the entanglements removing mechanism. The entanglements removing mechanism comprises two insulated vertical rods arranged at the bottom of the base, a hook arranged at the bottom of the two insulated vertical rods, a rail beam arranged between the upper portions of the two insulated vertical rods, and an electric lifting rod arranged at a lower portion of the rail beam in arolling way, a carbon dioxide laser cutting head arranged at the bottom of the electric lifting rod, an infrared distance sensor arranged at the bottom of the electric lifting rod, an rotating rollerrotationally arranged between the lower portions of the two hooks and a spike antenna arranged on the outer surface of the rotating roller. According to the apparatus for removing overhead line entanglements, the load quality of the overhead line is not increased, and the difficulty of hooking can be reduced.

The invention discloses an intelligent snow sweeping robot based on multi-sensory interaction. The intelligent snow sweeping robot based on multi-sensory interaction mainly comprises a snow pushing assembly, a solar panel shell, a camera, a locating device, a communication device, a floating snow removing assembly, a 4+2 wheel type drive assembly and the like. The snow pushing assembly can controlthe height of a rotary cutting type snow pushing board based on the differential thought through control over a push rod motor. The floating snow removing assembly mainly uses a high-pressure air stream to blow remaining floating snow away. The 4+2 wheel type drive assembly can deform to advance. The camera is used for image information acquisition. The locating device is used for obtaining position information. The communication device is used for transmitting various data. The solar panel shell is used for instantly supplementing electric energy. The intelligent snow sweeping robot based onmulti-sensory interaction is mainly used for solving the problems that a current snow sweeping machine is large in size, high in cost, poor in flexibility, not intelligent, poor in snow sweeping effect and the like.

The invention discloses multifunctional environment-friendly straw bio-softening equipment. The multifunctional environment-friendly straw bio-softening equipment comprises a tank body, an upper coveris arranged at the top of the tank body, a heating cavity is formed in the outer side of the tank body, a stirring cavity is formed in the tank body, an opening is formed in the bottom of the stirring cavity, a main shaft is arranged in the stirring cavity, and a vertical screw is arranged on the main shaft; and the top of the vertical screw corresponds to a feeding cavity, a scraping device is arranged at the position, corresponding to the feeding cavity, of the upper portion of the main shaft, a discharging cavity is correspondingly formed below the scraping device, the top of the discharging cavity is open, and the bottom of the tank body protrudes outwards and is provided with a slag discharging opening. According to the invention, the working efficiency is greatly improved, the resource consumption is reduced, and the environment is protected.