62results about How to "Implement resizing" patented technology

The invention relates to an expandable or shrinkable workbench, comprising a workbench and four support rods supporting the workbench; an expansion board is arranged on the workbench, and the expansion board is hingedly connected with the workbench; There is a chute, and the opening of the chute is provided with an inwardly curved flash; the lower part of the workbench is provided with a hydraulic cylinder mounting plate, which is fixed on 4 support rods, and the hydraulic cylinder mounting plate is hinged. There is a hydraulic cylinder, the top of the piston rod of the hydraulic cylinder is provided with a spherical sliding body, the sliding body is placed in the chute, and is stuck in the chute through the flash at the opening of the chute, and the spherical sliding body can slide along the chute. Through the present invention, the purpose of adjusting the size of the workbench can be realized, and has great market application and promotion value.

The invention discloses a dynamic kinematic acquisition system for a human body bone joint. The system comprises first brackets and a second bracket which are movably connected, and a data storage device recording position data of a first plane X-ray dynamic acquisition device and a second plane X-ray dynamic acquisition device, wherein a first X-ray bulb tube and a second X-ray bulb tube used for emitting X-rays, X-ray receivers and a plurality of motional somatosensory camera shooting devices used for capturing body surface motion and position information of the targeted bone joint are arranged on the second bracket at intervals; the two X-ray bulb tubes and the X-ray receiver group can slip on an annular arm of the second bracket in a linkage manner, so that an angle between the two projection X-rays is adjusted, and the shape and the size of a detecting area are adjusted; and with the assistance of the body surface motion information of a targeted limb, in-vivo motion of the bone joint is reconstructed through registration between a pre-established three-dimensional model of the bone joint and an acquired bi-plane two-dimensional image. The system is simple in structure and low in cost, and can acquire an in-vivo motion image of the human body bone joint accurately and quickly.

The invention relates to a medical instrument, in particular to a cup-adjustable uterine manipulator. The cup-adjustable uterine manipulator comprises a uterine manipulator cup, a guide rod and a hollow operating rod connected with the uterine manipulator cup, wherein the uterine manipulator cup consists of at least two blades distributed along the same circumference; the middle of each blade in the axial direction is hinged to a support frame; the lower end of each blade is hinged to a hollow adjusting rod; the hollow adjusting rod moves up and down to drive each blade to rotate around the support frame and is arranged in the inner chamber of the operating rod; and the guide rod penetrates the inner chamber of the adjusting rod to be connected with the support frame and can move up and down along the inner chamber of the adjusting rod. According to the cup-adjustable uterine manipulator, the adjusting rod moves up and down to drive the lower ends of the blades to move and to enable the blades to rotate around the fixed axis, so that the blades are stretched or gathered to realize adjustment of the cup size, and the purpose that the uterine manipulator is suitable for different cervical diameters is achieved.

The invention relates to an apparatus for fixing objects by means of vacuum. The invention is based on the problem of making it possible to vary the effective surface area of a vacuum table in a finely graduated manner so that objects with base surface areas of different sizes can be arrested securely. The problem is solved by an apparatus for fixing objects by means of vacuum, in that the table (1) has arranged on it, alongside a first vacuum chamber (11), a second vacuum chamber (12) and a third vacuum chamber (13), which extend the first vacuum chamber (11) and the second vacuum chamber (12) all the way in the x direction, wherein the second vacuum chamber (12) has a structure made up of a multiplicity of parallel and line-forming grooves (15) which run in the x direction, are connectedto one another in the y direction via a first connecting channel (22) and can be released or closed in series by means of a line-switching device (2) relating to the first vacuum chamber (11), the third vacuum chamber (13) has a structure made up of a multiplicity of parallel and column-forming grooves (16) which run in the y direction, are connected to one another in the x direction via a secondconnecting channel (42) and can be released or closed in series by means of a column-switching device (4) relating to the first vacuum chamber (11), and certain sections of the third vacuum chamber (13) can be released or closed in series in the y direction simultaneously, and in a manner corresponding to the number and positions of the line-forming grooves (15), by means of the line-switching device (2) in correspondence with the second vacuum chamber (12).

The invention discloses a multifunctional stretchable inverted-arch trestle. The multifunctional stretchable inverted-arch trestle comprises a trestle girder, a front ladder stand, a back ladder stand, a walking cart, a stretchable trestle body, an inverted-arch formwork and a central furrow formwork; the walking cart is installed below the trestle girder, the stretchable trestle body is located at the front portion below the trestle girder, the front portion of the stretchable trestle body is arranged on a stretchable trestle body beam, the back portion of the stretchable trestle body is movably installed on the trestle girder through connecting plates, and the stretchable trestle body beam is installed on a walking auxiliary caterpillar band chassis through vertical auxiliary lifting hydraulic cylinders and auxiliary movable stand columns; the inverted-arch formwork and the central furrow formwork are sequentially installed in the middle and at the back portion below the trestle girder from front to back and move back and forth through the walking cart. According to the multifunctional stretchable inverted-arch trestle, the trestle girder, the stretchable trestle body, the inverted-arch formwork, the central furrow formwork and end sealing plates are designed into an integrated device, multiple working procedures can be carried out at the same time, the construction period is greatly saved, the construction efficiency is improved, the labor intensity of workers is reduced, the construction quality is guaranteed, and the construction cost is reduced.

The invention provides a double-helix threshing and conveying system and a combine harvester. The double-helix threshing and conveying system comprises two threshing spaces which are horizontally arranged in the advancing direction of the harvester at intervals front and back, each threshing space is a hollow cylindrical mounting cavity defined by a concave plate screen and a cylinder cover, and a roller is mounted in each mounting cavity. Guiding pieces are arranged on the inner wall faces of the cylinder covers at intervals and used for guiding crops entering the threshing spaces to move directionally around the axis, the rollers drive the crops to move when rotating and enters the second threshing space from the first threshing space through guiding of the guiding pieces, and therefore the lengths of working areas of the two threshing spaces are the same. Therefore, a crop threshing path passes through the length of two rollers and can fully thresh crops. The two threshing spaces are horizontally arranged in a spaced manner, so that the structure on the rack is more compact, the lengths of the two threshing working areas are the same, the threshing path long enough can be guaranteed, and the threshing effect is fully guaranteed while the overall maneuverability of the harvester is guaranteed.

The invention provides an automatic adjusting device for discharging granularity of a jaw crusher. The adjusting device comprises a direct current reducing motor, a driving gear, a driven gear, a square-head bolt, an adjusting wedge and a supporting seat. An output shaft of the direct current reducing motor is connected to the driving gear, the driven gear is engaged to the driving gear, and the upper end of the square-head bolt is fixed to the driven gear and the lower end of the square-head bolt penetrates the adjusting wedge and is in threaded fit connection to the adjusting wedge; the side, close to a toggle plate, of the adjusting wedge is an inclined surface, and the side, close to the toggle plate, of the supporting seat is connected to the toggle plate through a connecting rod while the other side of the supporting seat leans against the inclined surface of the adjusting wedge. The granularity automatic adjusting device provided by the invention drives the square-head bolt andthe adjusting wedge to move in a reciprocating manner by means of intermittent forward and backward rotation of the motor to further drive the supporting seat slidably matched with the adjusting wedgeto move left and right to adjust the size of a discharge port of the crusher so as to meet the demand of adjusting the discharging granularity.

The invention relates to an improved electric executer. The electric executer comprises an executer body, and is characterized in that the executer body is controlled by a programmable controller to move; and a proximity switch is additionally arranged on the executer body, and induction signals of the proximity switch are connected to the programmable controller. According to the electric actuator, the improvement is made on the basis of an existing electric executer structure, in other words, a servo control circuit board likely to do mistaken actions and complex in adjustment is removed, the proximity switch is additionally arranged, the rotation turn number of a valve rod is measured, and the stroke of a valve is recorded through the turn number; and logic control is conducted through the program of the programmable controller, and the valve aperture adjustment and accurate positioning are achieved; and meanwhile, digital-to-analog conversion is conducted, and data are provided for an upper computer control system for switching amount feedback and control. The improved electric executer has the beneficial effects of being flexible in control, accurate in positioning, low in fault rate, safe, reliable, low in price and the like.

The present invention provides an impedance matching network for a plasma reactor, which comprises at least one inductor and at least one variable capacitor unit, wherein the variable capacitor unit comprises at least one variable vacuum capacitor; the variable vacuum capacitor comprises two parallel electrode plates; an annular piezoelectric ceramic plate is arranged between the two electrode plates; the annular piezoelectric ceramic plate is connected with a driving power supply; and an arc-shaped electrode plate is arranged in the hollow region of the annular piezoelectric ceramic plate. The variable vacuum capacitor in the impedance matching network described in the present invention uses the inverse piezoelectric effect of piezoelectric ceramic material; when alternating driving voltage is applied to piezoelectric ceramics, the piezoelectric ceramics can rapidly generate telescopic motion along a voltage loading direction, so that the distance of the arc-shaped electrode plate relative to the other electrode plate is changed; accordingly, the capacitance value of the variable vacuum capacitor is rapidly changed to realize that the size of the variable vacuum capacitor can be regulated within microsecond magnitude; and the need that plasma impedance is rapidly changed with the output of a radio frequency power source is satisfied.

The invention discloses a camera module and electronic equipment, and the camera module comprises a housing which is internally provided with an accommodation cavity, and is provided with a light outlet communicated with the accommodation cavity; a light source, which is arranged in the accommodating cavity; a lens assembly, which is arranged in the accommodating cavity; a reflective mirror, which is arranged in the containing cavity, the reflective mirror is opposite to the light outlet in position, and the lens assembly is located between the light source and the reflective mirror so that light emitted by the light source can be guided out of the light outlet through the lens assembly and the reflective mirror; wherein, at least one of the light source, the lens assembly and the reflective mirror can move in the containing cavity so as to adjust the irradiation range of light rays emitted by the light source. At least one of the light source, the lens assembly and the reflective mirror is arranged to be movable in the shell, wherein the relative distance among the light source, the lens assembly and the reflective mirror is adjusted, so that the view angle of the light source is adjusted, and therefore the light supplementing light range is adjusted, and the light supplementing requirements under various shooting scenes are met.

The invention discloses a lifter car wall connecting structure, and aims to provide a car wall telescopic connecting structure and a lifter telescopic car thereof. The car wall telescopic connecting structure comprises a connecting car wall plate and a movable car wall plate, and further comprises a car body and a car frame for mounting the car body, wherein connecting holes are formed in the connecting car wall plate and the movable car wall plate, and the connecting holes are distributed in the form of an array; one side of the connecting car wall is bent, and the two sides of the movable car wall are bent, a reinforcing part is further arranged on the movable car wall, and the movable car wall is placed above the connecting car wall to form a superposed area; in the superposed area, a detachable screw passes through each pair of connecting holes for fixing the connecting car wall to the movable car wall; the size of the superposed area is regulated, so that telescopic connection ofthe car wall can be realized; and the car body comprises four car walls, a car top, a car bottom and a car door, the four car walls are separately a left car wall, a right car wall, a front car wall and a rear car wall; and the left car wall, the right car wall and the rear car wall are equipped with car wall telescopic structures, and are further equipped with fixed car walls.

The invention relates to the technical field of corrugated pipe fittings, in particular to a double-layer corrugated pipe supporting device which is characterized in that an inner-layer steel ring and an outer-layer steel ring are both C-shaped steel rings with openings, the openings of the inner-layer steel ring and the outer-layer steel ring are arranged in a back-to-back mode, and the two ends of a first supporting structure are connected with the inner-layer steel ring and the outer-layer steel ring correspondingly; the inner-layer steel ring and the outer-layer steel ring are coaxially positioned through a first supporting structure, hoop steel sheets are installed on the inner ring face of the inner-layer steel ring and the outer ring face of the outer-layer steel ring correspondingly, a supporting device is mounted between an inner-layer pipe and an outer-layer pipe of a double-layer corrugated pipe, and through matching of the inner-layer steel ring and the outer-layer steel ring, the inner steel ring fastens the inner-layer pipe from the outer side, and the outer steel ring supports the outer-layer pipe from the inner side. The inner-layer pipe and the outer-layer pipe can be coaxially supported when the supporting device is installed in the middle of the double-layer corrugated pipe, and supporting device can be matched with a double-layer sleeve to complete butt joint of the ends of the corrugated pipe when the supporting device is mounted at the end part of the double-layer corrugated pipe.

The invention discloses an earth material preparation device and method for a geotechnical laboratory. The earth material preparation device comprises a rack, a feeding hopper, a crushing mechanism, an earth material conveying plate and a screening mechanism, wherein the crushing mechanism comprises a coarse crushing assembly and a fine crushing assembly, the coarse crushing assembly comprises a first driving roller and a first driven roller which rotate towards each other, a large rolling gap is formed between the first driving roller and the first driven roller, the fine crushing assembly comprises a second driving roller and a second driven roller which rotate towards each other, a small rolling gap is formed between the second driving roller and the second driven roller, the screeningmechanism comprises a vibration assembly and a plurality of stacked screens, the vibration assembly comprises a linear guide rail, a guide rail sliding block and a transmission rod and forms a crank connecting rod transmission mechanism with a second belt pulley, the second belt pulley drives the guide rail sliding block to vertically reciprocate up and down to complete automatic earth material screening, screens with different apertures can be selected according to test requirements to complete automatic grouping of earth material materials with different particle size groups. According to the earth material preparation device and method for the geotechnical laboratory, automatic screening of different particle size groups is achieved while an earth material is crushed, so that the crushing performance of the earth material is good, and the efficiency is high.

The multifunctional gantry type storage rack suitable for the automobile comprises two sets of cross beam assemblies arranged in parallel, each cross beam assembly comprises a connecting cross beam, and the two ends of each connecting cross beam are slidably connected with telescopic expansion beams correspondingly; the telescopic extension beam can slide outwards or inwards to adjust the length of the cross beam assembly; the supporting leg assemblies comprise telescopic supporting legs and fixed supporting legs, and the lower ends of the telescopic supporting legs are connected with the upper ends of the fixed supporting legs in a sliding and telescopic mode; the top ends of the telescopic supporting legs are fixedly connected with one ends outside the telescopic expansion beams; the telescopic supporting leg lifts to adjust the height of the supporting leg assembly; the two groups of parallel telescopic expansion beams are fixedly connected through the connecting longitudinal beams, and the fixed supporting legs are fixedly connected through the connecting longitudinal beams. According to the gantry type storage rack, the length of the cross beam assembly and the length of the supporting leg assembly are adjustable, so that the size adjustment of the gantry type storage rack in the width direction and the height direction can be conveniently achieved, and the gantry type storage rack is suitable for installation of different vehicle types.