47results about How to "Convenient and effective adjustment" patented technology

An instrument for spinal rotation that aligns and holds direct vertebral rotation (DVR) lever arms relative to each other to achieve an initial axial alignment of a segment of vertebrae and allows the final DVR rotation by rotating the instrument and lever arms together. A method of direct vertebral rotation that allows rotating the vertebrae to be aligned relative to each other, and collectively rotating the vertebrae to be aligned relative to adjacent spinal segments by rotating the direct vertebral rotation instrument. A system for direct vertebral rotation having at least two pedicle screws. The system also includes at least two levers attachable to the pedicle screws and a clamping instrument configured to clamp the levers.

The invention relates a collection and treatment system of domestic sewage and rainwater in residential community, which is used for roof plantation. The invention includes construceted wetland, underground sewage and rainwater collection and treatment structure, roof irrigation device and planting soil layer. The pinciple of the underground sewage and rainwater collection and treatment structure seperated into reservoir, wetland clear water tank and sewage well, is: firsti, the sewage after treatment flows through pipes into the reservoir which has a pump arranged on its base; second, the sewage is lifted by the pump to constructed wetland which filters the sewage; then, the filtered sewaged flows into wetland clear water tank which also has a pump arranged on its base and has pips connected with the roof. Theroof irrigation device includes a plurality of roof clear water boxes arranged on the roof, outlet pipes, and drip irrigation pipes. The planting soil layer is layed averagely on the roof in a manner that a soil layer with a soil layer depth of 10cm and a soil bulk density of 120kg/m², is layed on a geotextile layer layed on a water storage board which is layed on a thermal insulation board.

The invention relates to a high-speed train gearbox no-load running-in test bench, which is composed of a driving device, axle end transition bearing positioning clamping devices, a large-span mobile wheel set axle positioning supporting device, a gearbox input end pressing vertical column device and a noise testing device, wherein the driving device is arranged at the left end of a test bench base (1); a fixing-end and a mobile-end transition bearing positioning clamping devices are arranged at the left side and the right side of the test bench base (1) respectively; the large-span mobile wheel set axle positioning supporting device is composed of two sets of large-span mobile wheel set axle positioning supporting devices with the same structure; the gearbox input end pressing vertical column device is arranged on the test bench base (1); and the noise testing device comprises noise testing sound level meters and supporting tube assemblies arranged at the input end and the output end of the gearbox respectively. A series of technical problems that the existing gearbox no-load running-in test bench is complicated to assemble and disassemble, an axle journal is damaged, a high rotation speed can not be met and the like can be solved.

A position sensor for an electronic control pedal is carried by the pedal mounting bracket and includes a linear potentiometer having a slider operable along a substrate in only a linear direction for providing an output voltage representative of slider displacement. A drive arm is connected to the pedal shaft for rotation during pedal movement. A coupler connected to the slider is slidable within a slot in the drive arm for providing the linear displacement through a rotational movement of the shaft. The drive arm has an inner arm in a telescoping connection with an outer arm for setting the drive arm at a desired length after potentiometer calibration. The longitudinal axis of the slot is at an non-zero angle to the longitudinal axis of the drive arm for desensitizing the sensor calibration and adjustment process.

The invention belongs to the field of biological and medical polymer materials, and relates to a polyesteramide and polyethyleneglycol periodic copolymer and a preparation method thereof. According to the invention, polyesteramide with an amino acid unit structure and polyethyleneglycol with amino at tail ends of molecular chains are subjected to condensation reaction to obtain the triblock copolymer or segmented copolymer. The periodic copolymer has favorable biocompatibility and biological degradability. Through selecting amino acids, divalent alcohol, and dibasic acid (or Binary chloride) of different structures and polyethyleneglycol of different molecular weights, adjustment for the mechanical property and degradation behavior of the copolymer is realized. The method is simple. The novel copolymer can be automatically assembled in the water into nano particles, and package load and release control of the medicine are realized.

The invention relates to an optical adjustment structure. The optical adjustment structure comprises a fixed bracket used for mounting a reflector and mounted on a base in a horizontally rotatable manner, and further comprises a first adjusting piece used for driving the fixed bracket to rotate horizontally on the base, wherein the first adjusting piece can rotate horizontally on the base around a rotating shaft; the outer side surface of the first adjusting piece is in contact with the side wall of the fixed bracket; in the horizontal rotating direction, the outer side surface of the first adjusting piece relative to the rotating shaft is in linear relation; when the first adjusting piece rotates in the horizontal direction, the outer side surface of the first adjusting piece drives the side wall of the fixed bracket to rotate on the base, and the reflector rotates together, so that rotation of the reflector on the base in the horizontal direction is realized. According to the optical adjustment structure, the reflector can be driven to rotate horizontally on the base as long as the first adjusting piece is rotated, so that the adjustment mode is simple, convenient and effective.

The invention belongs to the technical field of ceramic materials, and in particular relates to a method for preparing a large-aperture three-dimensional network SiC ceramic material. The method comprises the following steps of: mixing SiC powder and B4C powder; adding ammonia hydroxide, sugar, acrylamide, N,N-methylene bisacrylamide and water in a ball milling manner to form a SiC mixed slurry; adding a surfactant, a foaming agent hydrogen peroxide and an adhesive into the SiC mixed slurry, uniformly stirring, and adding an initiator gel for foaming to obtain foaming gel; insulating and sintering the foaming gel for 0.5-1 hour at 1,950-2,040 DEG C in an inert atmosphere to obtain the large-aperture three-dimensional network SiC ceramic material. According to the method, a macropore three-dimensional network silicon carbide can be prepared, the size of apertures can be controlled by controlling the concentration and dosage of polyvinyl alcohol, and the porosity and aperture can be controlled by controlling the dosage of the hydrogen peroxide solution, and the communication performance of macropores can be effectively improved by using the surfactant. The method is simple and reliable, does not need high fixed investment, and has an excellent application prospect.

The invention discloses a projector for a matrix system and an adjusting method. The projector for the matrix system comprises an adjusting device, the adjusting device comprises a top plate, a rotation shaft is arranged at the bottom of the top plate, a servo motor is arranged on the top of the rotation shaft, and an output shaft of the servo motor is fixedly connected with the rotation shaft; atop rod is arranged on the top of the servo motor, and the top end of the top rod is hinged to the surface of the top plate; an adjusting plate is arranged at the bottom of the rotation shaft, annulargrooves are formed in the surface of the adjusting plate, a sliding ball is arranged in each annular groove, and the sliding balls are slidably connected with the annular grooves; an electric telescopic rod is arranged on the top of each sliding ball, an output shaft of each electric telescopic rod is fixedly connected with the corresponding sliding ball, and the top end of each electric telescopic rod is fixedly connected with the top plate; and a containing box is arranged at the bottom of the adjusting plate. According to the projector for the matrix system and the adjusting method, the horizontal height of the four corners of the adjusting plate can be adjusted through the adjusting device, the left angle and the right angle of the adjusting plate can be effectively adjusted, the direction control force is increased, and the image projection quality is improved.

The invention relates to the technical field of sweet potato processing, and discloses a discharging device with a turnover mechanism for sweet potato processing. The discharging device with the turnover mechanism for sweet potato processing comprises a main plate, wherein supporting legs are fixedly connected to the lower surface of the main plate; sliding rails are fixedly connected to the rightfront side and the right rear side of the upper surface of the main plate; sliding blocks are connected to the outer surfaces of the sliding rails in a sleeving manner; a first supporting block is fixedly connected to the right side of the upper surface of the main plate; and a rectangular plate is fixedly connected to the inner side surface of each sliding block. According to the discharging device with the turnover mechanism for sweet potato processing disclosed by the invention, a second fixing block, a second rotating shaft, a second worm, a first rotating disk, a third fixing block and atransmission rod are arranged, so that a second worm gear can stably and effectively drive a third rotating shaft and the transmission rod to rotate, and a transmission shaft can stably and effectively drive a first fixing block to move; and therefore, the angle of a discharging pipe can be conveniently and effectively adjusted, and the practicality of the discharging device is greatly improved.

The invention belongs to the technical field of patient limb adjusting devices, and particularly relates to a patient limb adjusting device for examination in an ultrasonic department. The device comprises a machine body and an electric lifting rod, an examination area is mounted on the outer side of the machine body, a lifting bed plate is arranged at the top of the examination area, a connecting piece is connected to the outer side of the lifting bed plate, a first connecting rod is mounted on the outer wall of the connecting piece, a placement groove is reserved in the outer side of the first connecting rod, a supporting block is mounted at the bottom of the placement groove, a sliding rod is connected to the outer side of a spring, an adjusting knob is mounted on the outer wall of the sliding rod, a supporting rod is arranged at the bottom of the adjusting knob, a bottom plate is mounted below the supporting rod, moving wheels are arranged at the bottom of the bottom plate, and a pushing handle is fixed to the right side of the outer walls of the moving wheels. Compared with an existing patient limb adjusting device, the patient limb adjusting device for examination in the ultrasonic department has the advantages that the limb positions of all parts of a patient can be conveniently and effectively adjusted, and comprehensive examination and ultrasonic irradiation scanning are facilitated.

The invention relates to a novel audio and video support. The novel audio and video support comprises a base and traveling wheels, and an outer ring and an inner ring of a first bearing are connected with the base and a sleeve correspondingly. The inner wall of the sleeve is provided with an inner thread. A support rod is provided with an outer thread. The top end of the support rod is connected with an inner ring of a second bearing. An outer ring of the second bearing is connected with a top plate. The lower portion of the sleeve is sleeved with an annular gear. The base is provided with a motor and a driving gear. The upper portion of the support rod is sleeved with a sliding block provided with a sliding block through hole. A guide rod is inserted in the sliding block through hole in an embedded mode. The bottom end of the guide rod is connected with the base. The top end of the guide rod is connected with a stop block. A left side plate and a right side plate are arranged on the left and the right of the top plate correspondingly. A plurality of left telescopic rods are distributed between the left side plate and the top plate evenly, and a plurality of right telescopic rods are distributed between the top plate and the right side plate evenly. Through the adoption of the structure, according to the novel audio and video support, movement and height adjustment can be conducted more conveniently and effectively, placement space can also be extended flexibly, and thus the usage performance is greatly promoted.

The invention discloses an air inlet valve for an air compressor. The air inlet valve includes an integral valve shell, a valve core mechanism and a connecting body, the valve shell is internally provided with a sealing rubber ring, and the top face and the outer ring face of the sealing rubber ring are both bonded to the valve shell; the valve core mechanism comprises a valve rod, a first connection rod, a second connection rod, a first inserting barrel, a second inserting barrel and a ceramic valve core matched with the rubber seal ring, the valve rod is in threaded connection with the ceramic valve core, and the first connection rod and the second connection rod are both integrated with the valve rod; and the first connection rod and the second connection rod are both arranged in an obtuse angle shape, the first inserting barrel and the second inserting barrel are internally provided with reset springs correspondingly, the tail ends of the first connection rod and the second connection rod end are inserted into the first inserting barrel and the second inserting barrel correspondingly, and a connecting piece is arranged between the first inserting barrel and the second insertingbarrel. According to the air inlet valve for the air compressor, installation and adjustment are convenient.

The invention discloses healthcare type zero-calorie jelly and a preparation device thereof. The healthcare type zero-calorie jelly is prepared from, by weight, 50%-60% of purified water, 3%-6% of agar powder, 5%-8% of konjaku flour, 10%-15% of radix puerariae, 10%-15% of edible fungi, 5%-12% of citric acid, 2%-3% of honey and 10%-15% of hawthorn fruits. The preparation device of the healthcare type zero-calorie jelly comprises a shell, an opening matched with the shell is formed in one side of the top wall of the shell, a functional seasoning device matched with the shell is arranged at the top end of the shell, an inlet matched with the functional seasoning device is formed in the top end of the functional seasoning device, and a flow guide wall matched with the shell is arranged on one side in the shell. The device has the beneficial effects that during the whole use period of the device, the proportion of input every time can be easily and effectively adjusted, the whole operation process of the device can be more flexible by adding auxiliary components, and materials such as agar powder, radix puerariae and lemons are utilized, the jelly has enough taste on the premise of ensuring health and zero calorie.

A data center rack assembly includes a rack, an electronic device, and an adjustable air duct. The rack includes a frame defining opposite first and second rack sides spaced apart in a longitudinal direction. The electronic device presents an intake side configured to receive air therethrough for passage into the electronic device. The electronic device is mounted to the frame such that the intake side is disposed intermediately between the rack sides and is spaced from the first rack side to define a longitudinal dimension therebetween. The duct includes relatively shiftable first and second duct sections that extend in the longitudinal direction to cooperatively present an adjustable longitudinal duct length, and a drive mechanism operably coupled to the first and second sections to control relative shifting of the sections in the longitudinal direction to thereby adjust the longitudinal duct length to correspond with the longitudinal dimension.