34results about How to "Effective control position" patented technology

The invention discloses a preparation method of a two-dimensional ultrathin bismuth oxyhalide solid solution nanosheet photocatalyst and belongs to the technical field of photocatalysis. The method comprises the steps as follows: inorganic bismuth salt and a dispersant are added to deionized water, a structure-directing agent is added, the mixture is stirred, and a solution A is formed; halide isdissolved in deionized water and dropwise added to the solution A, the mixture is stirred continuously and poured into a hydrothermal synthesis reaction kettle to react, cooling, centrifugal separation, precipitation, water washing and drying are performed, and the ultrathin bismuth oxyhalide solid solution nanosheet photocatalyst is obtained. The preparation method has the advantages as follows:the thickness of the formed bismuth oxyhalide solid solution nanosheet is regulated by the added structure-directing agent and dispersant, the ultrathin bismuth oxyhalide solid solution nanosheet is synthesized with a hydrothermal method, the photocatalytic activity is further improved, and the prepared ultrathin bismuth oxyhalide solid solution photocatalyst has efficient visible-light catalyticactivity. The method has mild reaction conditions, required equipment is simple, required agents are low in price, safe and non-toxic, and the method is suitable for mass production.

The invention mainly belongs to the technical field of antennas and relates to a fast agile multi-functional planar and quasi-three-dimensional antenna, in particular to a reconfigurable multi-functional antenna. The multi-function antenna is composed of the semiconductor plasma and the fast, large current, simple TFT matrix driving technology distributed direct drive arrays integrated into silicon, glass, sapphire, silicon carbide and other planar or curved dielectric substrates, the multi-function antenna can quickly, dynamically control the shape, size and the correct position to be in of the radiating elements constituting the planar array, the antenna frequency is reconfigurable, polarization reconfigurability, beam control and gain agility reconfigurability, sidelobe position and relative level reconfigurability, and combinations of these, like a two-dimensional printer, rapidly and agilely change the antenna from one function to another, transforming a planar or quasi-three-dimensional antenna into a multi-function planar or quasi-three-dimensional antenna.

The invention discloses an automatic stem pulling device. The device comprises a handle, a left wheel, a right wheel, a clamping device, a handbrake system and a pedal, wherein the left wheel and the right wheel are respectively arranged at the two ends of a connecting shaft; the front end of the handle is arranged on the connecting shaft; the middle part of the pedal is arranged on the connecting shaft via a rotating shaft; the clamping device is arranged at the front end of the pedal and positioned on the front side of the connecting shaft; and the handbrake system is arranged at the rear end of the handle, used for shrinking the opening of the clamping device and connected with the clamping device. The device can automatically remove plant stems, is simple in structure and strong in flexibility, is simple to operate and easy to carry, is suitable for various environments and has the advantages of high stem removal efficiency and high cost performance.

The invention provides a zooming correcting method and device. The method comprises the steps that the zooming power of zooming of a target object in an image is acquired; a zooming compensation table is checked, and an angle compensation value corresponding to the zooming power is obtained; according to the angle compensation value, an angle compensation mechanism is subjected to zooming compensation, and the target object is made to be placed in the preset position in the image after zooming. The zooming correcting method and device obviously improve the zooming efficiency.

The present invention provides an embedding structure which includes a first and a second substrate. Upper surface of the first substrate has a certain region; a first sealing ring with a first height is located on the upper surface of the first substrate, and is set on peripheral part of the said certain region to connect lower surface of the second substrate; a second sealing ring with a second height which is smaller than the first height is located on the upper surface of the first substrate, and is set on peripheral part of the first sealing ring to form a trench with the first sealing ring together; a sealing colloid is set in the trench. The embedding structure of the present invention can effectively provide adhesion and air tightness, reduce used amount of the sealing colloid, and avoid polluting component region.

The invention provides an intermediate infrared region magnetic resonance metamaterial structure based on silicon. The structure comprises a substrate and silicon cubes, wherein the substrate is a glass substrate, the silicon cubes are distributed on the glass substrate periodically, the side length of each silicon cube is L, the value of the L ranges from one micro to five microns, the spacing distance between every two adjacent silicon cubes is W, and the value of the W ranges from one micro to five microns. The invention further provides a preparation method of the intermediate infrared region magnetic resonance metamaterial structure based on silicon, and the intermediate infrared region magnetic resonance metamaterial structure is obtained through a photoetching method. According to the intermediate infrared region magnetic resonance metamaterial structure based on silicon and the preparation method based on the intermediate infrared region magnetic resonance metamaterial structure based on silicon, electric conductance loss is effectively reduced, application, such as design of a filter, a polarizer and a spectrum transmitter, focusing on an intermediate infrared band is achieved, and a magnetic resonance metamaterial which is low in loss, insensitive to polarization, capable of being expanded in a three-dimensional mode and low in cost can be really implemented.

The invention discloses a small-thrust solid propellant grain combustion and propulsion performance detection test device. The device comprises an ignition module, a pressure combustion chamber module, a high-speed photographing module, a gas supply module and a processing module, the pressure combustion chamber module comprises a combustion chamber, a spray pipe arranged in the combustion chamberand a sliding block driving the spray pipe to move in the combustion chamber. The spray pipe is used for fixing a solid propellant grain; a pressure transmitter and a thrust sensor are further arranged in the combustion chamber; by adjusting the relative distance between the sliding block and the thrust sensor, static testing and dynamic testing of combustion and propulsion performance of the solid propellant grain are achieved. The processing module is used for calculating the combustion performance and the propulsion performance of the solid propellant grain according to the environmental pressure in the organic glass cover, the displacement of the sliding block and the mass of the solid propellant grain. The device is small in size, high in integration degree and capable of efficiently, conveniently and accurately achieving dynamic and static tests of solid propellant grain combustion and propulsion performance.

The invention provides a perforation positioning grouting sleeve comprising a seamless steel pipe and a positioning disc; a shear groove boss is formed on the inner wall of the seamless steel pipe; openings at two ends of the seamless steel pipe are each provided with an elastic annular rubber ring, and a grouting hole and a slurry outlet hole are symmetrically arranged on the pipe wall close to the end parts of the seamless steel pipe respectively; a pair of positioning holes are formed in the middle part of the seamless steel pipe along the direction perpendicular to the pipe length direction; the positioning disc and the seamless steel pipe are relatively independently arranged. The sleeve adopts the positioning disc, can effectively control the position of reinforcing steel bars and makes the reinforcing steel bars not dislocated; the production process is simple and efficient, low in cost and reliable in performance, the length can be determined according to actual engineering requirements, the defects that a conventional sleeve has high cost and complex construction are greatly improved; the sleeve can be used for connection of the reinforcing steel bars between assembly type concrete structure precast components, and has broad application prospects.

The invention discloses a screw placing guide plate for the spine and a manufacturing method of the screw placing guide plate. The screw placing guide plate for the spine comprises an attaching plateand screw placing sleeves, wherein the attaching plate comprises an attaching clamping part and guide parts; the attaching clamping part is in attaching clamping with the outer surface of the spine ina screw placing area for the spine of a patient; the guide parts are cylinder-shaped guide holes arranged in the left and right sides of the attaching plate, and then the position and angle of a screw placing channel for placing a screw into the spine of the patient are determined. The screw placing sleeves are fixedly connected with the guide holes in two sides of the attaching plate, the axialdirection is consistent with the axial direction of the guide holes, the bottom ends of the screw placing sleeves are arranged inside the guide holes, and the top ends of the screw placing sleeves arehigher than the guide holes by certain height. In the screw placing surgery, an opening cone is used for drilling inside the spine of the patient along the axial direction of the screw placing sleeves, then the screw placing channel is established, the screw is placed in the spine of the patient along the screw placing channel, and then the screw placing surgery is completed. With the screw placing guide plate for the spine, the screw placing is accurate in position and is safe, the surgical risk can be effectively reduced, the surgical time can be shortened, and the guide plate is convenientfor popularization and application, and has the obvious application value.

The invention provides an assembled building component joint seam shear-type bin separation plugging construction tool and method. The tool is in a scissors shape, an operation part is a gripping handle, the gripping handle is slightly thick, a knife edge part is changed into a straight plate with a certain thickness, the inner side of the straight plate has an inclined angle, and a bin separationstrip with an inclined angle is conveniently formed, and can be used for joint seam plugging to form a plugging strip after the tool is split. By means of the tool and the method, after a prefabricated component is installed, unified bin separation and plugging can be conducted, and the disorder of working procedures is avoided; moreover, the position and depth of bin separation and plugging canbe effectively controlled, the operation is convenient, the construction efficiency is high, the quality of bin separation and plugging is improved, and good conditions are provided for subsequent grouting construction.

The invention provides a method for mounting grouting guide pipes by using restraint rings. The method comprises the following steps: a, producing the restraint rings for restraining the grouting guide pipes; b, fixing the restraint rings, namely fixing the well made restraint rings onto the inner sides of bound reinforcing cage strengthening ribs; c, mounting the grouting guide pipes: individually penetrating the grouting guide pipes into the restraint rings along the length of a reinforcing cage, and fixing the grouting guide pipes and the reinforcing cage at the positions of all restraint rings; d, enabling the suspension cage to enter into a hole: after pore-forming operation is achieved, the reinforcing cage in which the grouting guide pipes are well mounted is hung into the hole; and e, untying and putting in place: releasing the top binding and fixing point of the grouting guide pipe at the reinforcing cage so as to enable the grouting guide pipe to sink into the bottom of the hole under the action of the dead weight or external force. According to the invention, while a grouting valve at a pole end is guaranteed to sink into a sediment layer at a pole bottom, the position of the reinforcing cage can be effectively controlled, the construction quality of the pile foundation project is effectively ensured, and the construction method is simple and easy to operate, and the construction and building costs are greatly saved.

The invention discloses a steering control device, which includes a first transmission shaft, a second transmission shaft, a power source and a speed change device, the power source is connected to the first transmission shaft through transmission, and the speed change device includes two transmission wheels, and the two transmission wheels are respectively arranged on On the first transmission shaft and the second transmission shaft, the two transmission wheels are connected by belt transmission. The two transmission wheels respectively include a fixed plate and a moving plate set in mirror images. On the transmission shaft, the moving disc is movably set on the corresponding transmission shaft, the fixed disc is set on the same side as the moving disc on the other transmission shaft, the first driving part is set on the first transmission shaft, and the second transmission shaft is set There is a second drive. The improved structure is simple and reasonable, and the overall mechanism is simpler, which makes the steering operation more sensitive and realizes the steering of the vehicle.

The invention discloses an aerated concrete building block grooving machine. The aerated concrete building block grooving machine includes two modified grinding machines and a grooving machine fixing support; the grooving machine fixing support includes a steel plate connection member; the front end of the steel plate connection member is welded to an upper protection plate and a lower fixing plate, and a hand lever is arranged on the back end of the steel plate connection member; two grinding machine fixing rings are arranged on the steel plate connection member; a handle is arranged on the upper part of the upper protection plate; the grinding machines do not have protection covers, original grinding wheel sheets are replaced by saw blades consisting of three hard alloy circular saw blades to form cutting portions of the grooving machine; a gasket is arranged between every two circular saw blades, the width demand of grooving can be ensured, and bolt holes are formed in the grinding machines; the front portions of the grinding machines are connected to the fixing support through bolts, and the back portions of the grinding machines are fixed by the fixing rings; and control switches of the grooving machine are arranged on tails of the grinding machines, and wires are arranged on the tails and communicate with a power source. The aerated concrete building block grooving machine is simple in structure, is easy to use, is high in construction efficiency, has a hand lever and a handle, can be easily operated by construction workers, and can effectively prevent dust in construction.

The invention belongs to the technical field of micro-nano processing, and particularly relates to a method for preparing a two-dimensional precious metal micro-nano pattern large-scale array. According to the method, the thin film is prepared by spin coating of a polyoxyethylene-b-poly (2-vinylpyridine) (PEO-b-P2VP) solution. A PDMS soft template is used for hot-pressing a film, and crystal pattern arrays with different widths can be obtained by changing the hot-pressing temperature and the hot-pressing pressure. The size and position of the crystal pattern array can be regulated and controlled through selective melting and dissolving, and finally, a proper precursor is selected to be subjected to a complexation reaction with P2VP to obtain the precious metal pattern array. According to the construction method disclosed by the invention, the size and the position of the precious metal pattern are regulated and controlled on the micro-nano scale. The constructed precious metal pattern array has good conductivity, and the application of the precious metal pattern array in the fields of sensors, energy and the like is expected to be expanded.

A process for preparing the jet pinhole chip of ink-jet print head by microfilm techonlogy features that the film is pressed on silicon substrate, exposed and developed to effectively control the position, diameter and shape of pinhole for higher print resolution. It may include exposure twice and developing once, or exposure twice and developing twice, or exposure on the first film, depositing the second film, developing the back of the first film, and exposure and developing the second film.

The invention discloses a municipal integrated pipe gallery hydraulic formwork trolley and a construction method thereof. A municipal integrated pipe gallery comprises a municipal integrated pipe gallery floor; a hydraulic formwork trolley comprises an inner formwork trolley (1), an outer formwork trolley (2), an inner formwork traveling track (3) and an outer formwork traveling track (4), whereinthe number of each of the inner formwork traveling track (3) and the outer formwork traveling track (4) is two, and the two inner formwork traveling tracks (3) are arranged at the middle of the municipal integrated pipe gallery floor and arranged along the length direction of the municipal integrated pipe gallery floor; the two sides of the lower end of the inner formwork trolley (1) are movablyfixed to the two inner formwork traveling tracks (3), and the two sides of the outer formwork traveling tracks (4) are respectively arranged on the two sides of the municipal integrated pipe gallery floor and arranged along the length direction of the municipal integrated pipe gallery floor; the two sides of the lower end of the outer formwork trolley (2) are movably fixed to the two outer formwork traveling tracks (4); the inner formwork trolley (1) is arranged inside the outer formwork trolley (2).

The invention relates to transition metal phosphide with phosphorus vacancies filled with non-metallic elements, preparation of the transition metal phosphide and a lithium-sulfur battery, and belongs to the technical field of inorganic compound preparation. In the transition metal phosphide, non-metallic elements are filled in phosphorus vacancies of the transition metal phosphide; the non-metallic element is sulfur, nitrogen, fluorine, chlorine or boron. Calcining sulfur powder and the transition metal phosphide containing the phosphorus vacancies in an argon atmosphere to prepare the transition metal phosphide with the phosphorus vacancies filled with sulfur elements; calcining the transition metal phosphide containing the phosphorus vacancies in the atmosphere of argon and ammonia gas to prepare the transition metal phosphide with the phosphorus vacancies filled with nitrogen elements; the transition metal phosphide with phosphorus vacancies filled with fluorine, chlorine or boron is obtained by adopting a plasma treatment method. When the transition metal phosphide with the phosphorus vacancy filled with the non-metallic element is applied as a positive electrode material of a lithium-sulfur battery, the chemical reaction kinetics and the cycling stability of the lithium-sulfur battery can be effectively improved.

The invention discloses a furniture polishing device provided with a clamping mechanism and belongs to the field of furniture production equipment. The furniture polishing device provided with the clamping mechanism consists of the automatic clamping mechanism, an automatic polishing mechanism and a transportation guide rail mechanism. According to the automatic clamping device, a motor rotates forwards, a movable stop block is close to a fixed stop block, when a pressure sensor on the fixed stop block detects existence of pressure, the motor stops running, and when furniture polishing is completed, the motor rotates reversely, and the movable stop block moves away from the fixed stop block. According to the automatic polishing device, a spray gun can do planar motion in an electromagneticmotion groove, the length of a telescopic shaft of the spray gun can be adjusted, a spray pipe of the spray gun is a circular hole and can spray solid spherical beads or liquid objects, and the sprayed objects are harmless, collected in a hollow accumulation cavity below the spray gun, guided out through a guide-out circular hole and repeatedly used. According to the transportation guide rail mechanism, a clamping base is driven by an electromagnetic motor to do reciprocating motion on a motion guide rail, and can continue to move after polishing is stopped below the automatic polishing device.

The invention discloses an auxiliary mechanism for rolling insulation paper. The auxiliary mechanism comprises a bottom plate; a first vertical plate is arranged on the left end surface of the bottom plate; a second vertical plate is arranged on the right end surface of the bottom plate; a downward pressing roller is arranged above the bottom plate; an upward pressing roller is arranged above the downward pressing roller; the downward pressing roller and the upward pressing roller are located between the first vertical plate and the second vertical plate; a lifting module is arranged in front of the lower end of the downward pressing roller; a fixing roller is arranged at the back half part of the upper end of the space between the first vertical plate and the second vertical plate; a first adjusting roller is arranged in front of the fixing roller; a second adjusting roller adopting the identical structure is arranged below; a first mounting block is arranged at the front half pat of the upper surface of the first vertical plate; a second mounting block is arranged at the front half pat of the upper surface of the second vertical plate; and paper materials can be taken and placed conveniently by the aid of the lifting module, rolled paper can be adjusted to the proper position by the aid of the first adjusting roller, so that paper rolling smoothness is guaranteed. In general, the auxiliary mechanism has the advantages of being convenient to use and smooth in paper rolling.

The invention discloses a gluing station, which belongs to the gluing technical field. The invention provides the gluing station capable of accurately controlling the gluing position and length. The gluing station comprises a rotation lifting platform, and an annular loop similar with outer ring of a component to be glued and with reduced geometric ratio by 1/2 to 1/5, several support bars are arranged on a table board on the rotation lifting platform, a locating piece is arranged at top outboard of each support bar, a positioning foot coupled with the locating piece is arranged on the annular loop, two strips of annular channel sections with up and down arrangement and mutual parallel are arranged on annular loop along the outer sidewall of the annular loop, a length positioning annular lamp with slanting irradiation downwards is arranged in one of the annular channel section, an indication block is clamped and connected in the other annular channel section, one side of the indication block shields the length positioning light of the length positioning annular lamp; and the length of the indication block is coupled with the length of glue required by the component to be glued. The gluing station is mainly used in positioning and gluing technology.