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49results about How to "Prevent in-depth" patented technology

Permeable reaction wall in-situ repair method for preventing aquifer pollution

The invention discloses a permeable reaction wall in-situ repair method for preventing aquifer pollution. The method is characterized by adopting a permeable reaction wall horizontally arranged and a pumping well; the permeable reaction wall includes a ditch excavated in a pollution rain flowing path; a horizontal field is excavated in the ditch; a reactive medium is paved to form a horizontal permeable reaction wall body; the reactive medium material is selected according to pollutant repair mechanisms, and is layered; soil or sand is filled above the reactive permeable wall for covering to level with the bottom of the ditch; two sides of a wall body are tightly bonded a dam of the ditch to construct an impervious wall to guarantee polluted water to downwards permeate into an underground aquifer through the permeable reaction material wall body; the pumping well is a well, deep to reach the underground aquifer, drilled in middle of the horizontal permeable reaction wall; the well wall is produced by an impervious material; the well bottom is provided with a filter medium layer; and pumped water is from the underground aquifer. The method has the advantages of shallow ditch excavating and well drilling depths, easiness in material layering, high operability and good economic benefit.
Owner:HEFEI UNIV OF TECH +1

Anti-flood device

The invention relates to an anti-flood wall. The anti-flood wall comprises a plurality of bases, first wall vertical columns, second wall vertical columns and a plurality of hanging plates, wherein the plurality of bases are arranged in parallel to form a base wall and are connected by clamp buckles; the first wall vertical columns are respectively arranged at both ends of the base wall, and the base wall is connected with the first wall vertical columns by clamp buckles; the plurality of baffle plates are arranged in parallel to form a baffle plate wall and are connected by clamp buckles, andthe second wall vertical columns are respectively arranged at both ends of the baffle plate wall; the plurality of baffle plate walls are overlapped above the base wall; the baffle plate walls and the base wall are connected by clamp buckles; the baffle plate walls are connected by clamp buckles; the first wall vertical columns and the second wall vertical columns are connected by clamp buckles.The anti-flood wall has the advantages that the clamp buckles are used for connecting and no auxiliary tool is required for the buckling between the parts in the installation process, so that the installation time is shortened; an interference fit method is adopted, so that the leakage can be prevented; the clamp buckles are used for connecting, so that the width and height can be increased.
Owner:CHANGAN UNIV

Anhydrous low-cost imitation electroplating film and surface treatment method thereof

The invention relates to a metal or non-metal anhydrous low-cost imitation electroplating film and a surface treatment method thereof. The method comprises the following steps that a formed workpieceis subjected to hydrocarbon ultrasonic cleaning, oil removal and wax removal, then UV paint with a high hydroxyl value is sprayed on a workpiece, leveling, drying and curing are carried out, then theworkpiece is placed in a vacuum furnace for plasma glow treatment, then vacuum coating treatment is carried out, the UV paint with a high hydroxyl value is sprayed on the workpiece plated with the film, then the workpiece is enabled to enter the vacuum furnace again to sputter the silicon target, and the oxygen content is gradually increased. And finally, the workpiece plated with the gradient silicon and the silicon dioxide is immersed into a low-surface-energy solution, and the hydrophobic and corrosion-resistant imitation electroplating coating is obtained through drying at a low temperature. The imitation electroplating film can be widely applied to the fields of hardware, household appliances, bathroom accessories, automobile accessories and the like, and has the advantages of no wastewater discharge, low cost, excellent performance and the like.
Owner:厦门大锦工贸有限公司

Dual-electrode combined member and stimulation system

PendingCN106994207APrevent in-depthHighly directional controllableEpicardial electrodesHeart stimulatorsDual coreHeart.interventricular septum
The invention relates to the field of medical instruments, discloses a dual-electrode combined member and a stimulation system, and aims at stimulating deep tissues, controllably stimulating two tissues and reducing tissue reaction and polarization impedance. The dual-electrode combined member comprises a screw type electrode or a spindle type electrode and a spiral electrode. The dual-electrode combined member, a stimulation generator and lead bodies form the stimulation system. The stimulation generator comprises a dual pulse output circuit (simply named "dual-core" heart pacemaker when it is used for the heart), and a new simulation mode through which electric pulses of opposite directions are alternately emitted is provided. The dual-electrode combined member and the stimulation system are preferably used for the ventricular septum to perform cardiac resynchronization therapy; and two brand-new cardiac synchronization modes are put forward: one mode is that left and right ventricular electrical stimulation pulses are emitted to control double ventricular electro-mechanical activity; and the other mode is that the cardiac muscle between the cathode and the anode in the ventricular septum is stimulated so that excitation is enabled to be spread to both ventricles from the ventricular septum.
Owner:刘志忠 +1

Wire pole traction steel cable fastening device for electric power transmission and installing method of wire pole traction steel cable fastening device

The invention discloses a wire pole traction steel cable fastening device for electric power transmission and an installing method of the wire pole traction steel cable fastening device. A shell is included. The upper portion of the side wall of the interior of the shell is fixedly connected with a fixing rod. A rotation rod is fixedly connected to the lower portion of the side wall of the interior of the shell. The outer side wall of the rotation rod is in cup joint with a winch and a first gear. A steel stranded wire is wound around the outer side walls of the winch and a guiding wheel in aconnecting manner. A guiding groove is formed in the top of the shell. A protection cover is hinged to the top of the shell. A limiting base is welded to the side wall of the interior of the shell. The limiting base is internally in sliding connection with a fixing base. The top of the shell is evenly provided with four fixing assemblies with the tops penetrating through the bottom, the problems that when a cement stay wire disc and other heavy objects need to be placed, personal injuries can be caused to operation personnel or the traction effect cannot be achieved due to the insufficient dead load are prevented, and the work efficiency and safety guarantee of the operation personnel are effectively improved.
Owner:FUTENG TECH BRANCH OF QUZHOU GUANGMING POWER INVESTMENT GRP CO LTD +1

Method for forming self-aligned contact hole

The invention discloses a method for forming a self-aligned contact hole. The method comprises the steps of defining field oxide of forming a shallow trench structure by adopting a hard mask layer; forming a first dielectric layer; forming a second protection layer on the surface of the first dielectric layer with a sag structure; removing the first dielectric layer and the hard mask layer outsidethe area covered with the second protection layer by adopting the second protection layer as a self-aligned mask; forming a gate structure; forming a first silicon nitride side wall on the side surface of a polysilicon gate, simultaneously forming a second silicon nitride side wall on the side surface of the first dielectric layer and covering an active area and the boundary of the field oxide with the second silicon nitride side wall; forming an interlayer film; carrying out photoetching to form an opening of the contact hole; and filling the opening of the contact hole with metal. Accordingto the method, the bottom area of the contact hole can be located in the active area in a self-aligned manner, so that the bottom of the contact hole is prevented from deviating to the field oxide, generated electric leakage of a device can be prevented and the reliability of the device can be improved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Aerator for sewage treatment and treatment method thereof

InactiveCN111924965AGood for providing aeration efficiencyGood for aerationSpecific water treatment objectivesWater aerationGear wheelElectric machinery
The invention provides an aerator for sewage treatment and a treatment method thereof, and belongs to the technical field of sewage treatment. The aerator for sewage treatment comprises a machine bodyand a machine cover, the cover is connected to the top of the body; two sides of the outer wall of the body are connected with a water inlet pipe and a water outlet pipe; the top of the cover is connected with a motor; the output end of the motor is connected with a rotating shaft; one end of the rotating shaft away from the motor is connected with a first gear; the outer wall of the first gear is engaged with a second gear; a rotation shaft is rotatably connected to the center of the machine cover, a second gear is connected to the outer wall of the rotating shaft, an aeration mechanism is connected to the outer wall of the rotation shaft, a first bevel gear is connected to the outer wall of the rotating shaft, a second bevel gear is meshed with the outer wall of the first bevel gear, and a fixing rod is connected to the outer wall of the second bevel gear and fixedly connected to the inner wall of the machine body; bubbles are smashed and stirred through the stirring mechanism so that sewage and the bubbles are mixed more uniformly, and the aeration efficiency and the aeration effect are improved.
Owner:辽宁鑫知界科技有限公司

Display screen support for cleaning display screen by utilizing electrostatic characteristics

InactiveCN112228733APrevent easy accumulation of a large amount of dustExtended service lifeElectrode carrying meansStands/trestlesPhysicsMechanical engineering
The invention relates to the technical field of computer assistance, and provides a display screen support for cleaning a display screen by utilizing electrostatic characteristics. The display screensupport comprises a display screen support body, wherein a fixed mounting frame is fixedly connected to the top end of the display screen support body, the left side and the right side of the displayscreen support body are movably connected with movable frameworks, the left side and the right side of the display screen support body are fixedly connected with electrostatic sensing frames through the movable frameworks, and the center of the display screen support body is fixedly connected with a telescopic framework through the fixed mounting frame. According to the display screen support forcleaning the display screen by utilizing the electrostatic characteristics, an equipment switch is manually pressed, electric energy is used as a driving energy source, the telescopic framework is driven to rotate, a threaded rod on the inner side of the telescopic framework rotates, a seat plate fixedly connected with a display base at the bottom of the fixed mounting frame is driven to move downwards, and a display drives a fixing buckle which is fixed up and down to move downwards to the interior of the display screen support through a movable frame rod.
Owner:广州智索信息科技有限公司

Polyurethane rubber sound and vibration insulation cushion and use method thereof

The invention relates to a polyurethane rubber sound and vibration insulation cushion which is mainly used for sound and vibration insulation of central air-conditioner rooms such as office buildings. The polyurethane rubber sound and vibration insulation cushion is characterized in that the vibration cushion is of an up-and-down double-layer structure, the upper layer is a surface layer (2), the lower layer is a bottom layer (1), the surface layer (2) and the bottom layer (1) are both made of waste polyurethane rubber particles, and multiple through holes (3) are evenly distributed in the bottom layer (1). The polyurethane rubber sound and vibration insulation cushion is prepared from the waste polyurethane rubber particles, the cost is low, a space net-shaped structure is formed after the particles are pressed, interspace is large, the elasticity is good, the sound absorption effect is good, and the vibration reduction effect is good; the through holes are additionally formed in the bottom layer, and the sound absorption effect and the vibration reduction effect are further improved; colorful waste polyurethane rubber particles are adopted by the surface layer, the distinguishing degree is high, and attractiveness is achieved; in addition, through holes are not formed in the surface layer, cement paste in concrete can be prevented from being poured, and the elasticity is guaranteed.
Owner:JIANGYIN CITY RENRENDA TECH

Domestic waste solid-liquid separation equipment

The invention belongs to the field of domestic waste treatment, and particularly relates to domestic waste solid-liquid separation equipment which comprises an upper connection pipe and a waste separation mechanism connected with the lower portion of the upper connection pipe. The waste separation mechanism comprises a separation box, a liquid outlet, a residue outle and a filtrate plate, the filtrate plate is arranged right below the upper connection pipe, the liquid outlet is arranged below the filtrate plate, a position, corresponding to the upper end of the filtrate plate, of the top of the separation box is provided with a strip-shaped penetrating hole, the upper end of the filtrate plate penetrates out the strip-shaped penetrating hole, an arc-shaped diversion plate is connected on arim portion of one side, close to the residue outlet, of the bottom of the upper connection plate, a clean-scraping part for cleaning the filtrate plate is arranged in the separation box and comprises a clean-scraping guide strip and a clean-scraping member, and the clean-scraping member is close to a scraping plate or comprises a clean-scraping frame and a clean-scraping plate strip integrally connected in the clean-scraping frame. The equipment is simple and ingenious in structure, low in cost, good in using effect and kitchen waste separation effect, convenient for cleaning, less prone tofailing and low in cleaning frequency.
Owner:台州市吉吉知识产权运营有限公司

A kind of pipeline cable conveying method

The invention relates to a pipeline cable conveying method, and belongs to the pipeline cable field. The pipeline cable conveying method is completed by means of a cable conveying device. The cable conveying device includes a horizontal drilling machine, wherein the cable is fixedly connected with a drilling pole of the horizontal drilling machine; spiral blades sleeve and are fixed on the cable;each spiral blade includes a blade root and a blade tip which is fixedly connected with the blade root; the cross section of the blade tip is circular; the ratio between the thickness L of the blade root and the diameter of the blade tip is 1: (1-1.2); the cable is driven by the horizontal drilling machine to form a spiral pipeline cable conveying structure, and based on the structure, the spiralblades sleeve the periphery of the cable and are fixed; the cable is fixedly connected with the drilling pole of the horizontal drilling machine; the end head of the cable is arranged in the end headof the pipeline; the horizontal drilling machine is started, and the blocking particles are injected into from a feed opening above the end head of the pipeline; and during the process that the cableis conveyed to the other end head of the pipeline, the blocking particles are filled in the pipeline; and then the horizontal drilling machine is closed, and the end head, with the feed opening, of the pipeline is cut off, and then the process is completed. The pipeline cable conveying method can easily, quickly and completely convey the cable and the blocking particles to be in place synchronously.
Owner:STATE GRID CORP OF CHINA +2

Test device and method for simulating corrosion and deterioration of hydraulic concrete under high hydraulic gradient

ActiveCN106980014BRealistic simulation of complex stress conditionsSmall footprint to loadMaterial testing goodsTest efficiencyAxial pressure
The invention provides a test device and method for simulating corrosion degradation of hydraulic concrete under a high hydraulic gradient. A sealed tank is used for applying corrosion liquid with high hydraulic gradient to a concrete standard sample; three-direction pressure stress is applied to the concrete standard sample with combination of high-strength bolts and an axial loading rod; the pressure stress and the corrosion liquid pressure on the sample are measured by using a pressure sensor, an axial pressure sensor and a water pressure sensor which are arranged; a sealed protection chamber is used for separating the corrosion liquid from the high-strength bolts and the like, so that the loss of pre-tightening force and the damage to the pressure sensor are reduced; a high-elasticity rubber tube and a water stopping device which are arranged in an corrosion chamber are used for limiting a permeable passage. Through the test device and method, three groups of test can be simultaneously carried out, so that the test efficiency can be obviously improved; meanwhile, the operation condition that the hydraulic concrete is subjected to the action of the high hydraulic gradient and environment water for a long time can also be simulated; the evolution property of corrosion degradation of the hydraulic concrete under the action of the high hydraulic gradient can be really reflected.
Owner:HOHAI UNIV

Assembly structure of wire harness, electronic equipment and atmosphere lamp

The invention discloses an assembly structure of a wire harness, electronic equipment and an atmosphere lamp, and the assembly structure of the wire harness comprises the wire harness which comprises a wire buckle and a wire body which fixedly penetrates through the wire buckle; a limiting boss and at least two clamping bosses are formed on the peripheral wall of the wire buckle in a protruding mode in the radial direction, the clamping bosses are arranged at intervals in the circumferential direction of the wire body, and clamping grooves are formed between the clamping bosses and the limiting boss; the equipment shell is provided with a wiring hole for the wire harness to penetrate through, the hole wall of the wiring hole is provided with at least two stopping parts in a protruding mode, the stopping parts extend in the circumferential direction of the wiring hole and are arranged in the circumferential direction of the wiring hole at intervals, and the stopping parts are located in the clamping grooves so that the wire harness and the equipment shell can be assembled; the adjacent stopping parts form through grooves used for penetrating through the clamping bosses in interval areas in the circumferential direction, the stopping parts are screwed into the clamping grooves in the wire buckles, and the stopping parts are used for limiting the limiting bosses to penetrate through the wiring holes. The assembly structure of the wire harness can improve the fixing effect of the wire harness at the wiring hole of the equipment shell.
Owner:当趣网络科技(杭州)有限公司

Abdominal drainage tube fixing assembly and method for jointly clamping inside and outside abdominal wall

The invention discloses an abdominal drainage tube fixing assembly and method for jointly clamping inside and outside the abdominal wall, and relates to the technical field of medical supplies. The abdominal drainage tube fixing assembly comprises a drainage tube, a hard sleeve, a flexible sleeve, an inner locking ring and an outer locking ring, wherein a buckle is arranged at one end of the hard sleeve, a chute is arranged at the other end of the hard sleeve, and a bayonet is arranged in the chute; a plurality of kidney-shaped holes are formed in the flexible sleeve, strip-shaped petals are formed between the adjacent kidney-shaped holes of the flexible sleeve, and the hard sleeve is movably sleeved with the flexible sleeve; external threads are arranged on the outer circular surface of the inner locking ring, convex teeth are arranged in an inner hole, and the inner locking ring is movably sleeved on the hard sleeve; an annular flash is arranged at one end of the outer locking ring, and an inner thread is arranged in the inner hole. The abdominal drainage tube indwelling and extubating training method is applied to an abdominal drainage tube fixing assembly jointly clamped inside and outside the abdominal wall, and acts on a human body abdomen model. The abdominal drainage tube fixing device solves the problem that a wound or external skin is easily injured due to infirm fixing.
Owner:NANHUA UNIV

A kind of spiral pipeline cable conveying method

The invention discloses a spiral pipe cable conveying method, and belongs to the technical field of pipe cables. The spiral pipe cable conveying method is finished by dint of a cable conveying device;the cable conveying device comprises a horizontal drilling machine; a cable is fixedly connected with a drill rod of the horizontal drilling machine; spiral blades sleeve and are fixed on the cable;the spiral blades comprise roots, and tips fixedly connected with the roots; the cross sections of the tips are circular; a ratio of thicknesses L of the roots to diameters D of the tips is 1: (1-1.2); the cable is driven by the horizontal drilling machine to form a spiral pipe cable conveying structure; the cable conveying structure comprises a support frames with a walking mechanism and arrangedbetween the drill rod and a pipe, and a cable groove formed in the support frame; a shaft roller for supporting the cable is arranged in the cable groove; the surface of a roller body of the shaft roller is in an arc groove form; and based on the structure, in the process of spirally conveying the cable to the other end of the pipe by dint of the horizontal drilling machine, blockage particles are finally charged in the pipe. The method can easily, quickly and perfectly convey the cable and the blockage particles in place at the same time.
Owner:STATE GRID CORP OF CHINA +1

Cooked wheaten food machine capable of stably discharging noodles

The invention provides a cooked wheaten food machine capable of stably discharging noodles. The cooked wheaten food machine comprises a machine base, an extrusion assembly, a screw and a die head assembly; the extrusion assembly is arranged on the machine base; a motor is arranged in the machine base; the extrusion assembly comprises an extrusion cylinder; the screw is transversely arranged in theextrusion cylinder; the die head assembly is arranged at the front end of the extrusion cylinder; the die head assembly comprises a die head support and a die head, wherein a first eccentric part isarranged at the front end of the extrusion cylinder; furthermore, the centre of the first eccentric part is arranged on the central axis of the rear end of the extrusion cylinder in an offset mode; the die head support is provided with a second eccentric part; the centre of the second eccentric part is arranged on the central axis of the die head assembly in an offset mode; and the extrusion cylinder and the die head assembly are installed and matched through the first eccentric part and the second eccentric part, so that the extrusion cylinder and the die head assembly define a concentric material conveying channel in an encircling manner. Relative displacement between the extrusion cylinder and the die head assembly can be effectively avoided; therefore, the formed material conveying channel is good in concentricity; secondary kneading is carried out in the extrusion cylinder; and thus, extruded noodles or dough sheets are more chewy and elastic.
Owner:JOYOUNG CO LTD

Spring connection method and its spring connection structure for door-window and structure holes

InactiveCN100529434CFit closelyRealize plane two-dimensional adjustmentFrame fasteningDowelsFixed frameMaximum diameter
The invention discloses an elastic connection structure and a method for elastic connection of doors, windows and structural openings using the elastic connection structure. The elastic connection structure is composed of a head and a tail. A through hole is opened in the center of the head and runs through the tail. Several grooves are opened radially through the center of the head. The grooves extend along the tail and end before the end of the tail. The elastic connection method refers to fixing the steel attached frame with the wall structure; one or several holes are opened at the end of the window frame close to the wall structure, and the maximum aperture is smaller than the smallest diameter of the head of the elastic connection structure; the elastic connection structure The head of the screw passes from one side of the wall structure through the extrusion of the opening of the window frame to the glass side; the screw passes through the other side of the window frame, that is, the glass side passes through the opening of the window frame and the center of the elastic connector The through hole keeps a certain distance between the head of the elastic connection structure and the opening on the window frame, and fixes the window frame and the steel attachment frame together, so as to avoid the deformation of the window due to external force.
Owner:BEIJING JEG NEW ENERGY TECH DEV

Diesel engine cam shaft pressure-reducing mechanism

The invention relates to the field of machining, and discloses a diesel engine cam shaft pressure-reducing mechanism. The diesel engine cam shaft pressure-reducing mechanism comprises a cam shaft and a driven gear and multiple cams which are installed on the cam shaft, a first centrifugal arm and a second centrifugal arm are rotatably connected to the driven gear, the first centrifugal arm and the second centrifugal arm are each provided with a reset elastic part, the first centrifugal arm is provided with a driving end and an executing end, an opening is formed in the driving end of the first centrifugal arm, a protruding block which is inserted into the opening is arranged on the second centrifugal arm, mutual linkage of the first centrifugal arm and the second centrifugal arm is achieved, and an executing block is arranged at the executing end of the first centrifugal arm; a pin hole is formed in the cam shaft, a pressure-reducing pin is inserted into the pin hole, and the pin hole is in clearance fit with the pressure-reducing pin. The two centrifugal arms are adopted, under the situation that the rotating speed is the same, the rotating force on the centrifugal arms is larger, and opening is easier, that is to say, the critical speed of rotation is decreased; meanwhile, improvement can be conducted only by adding one centrifugal arm, the technology is simple, and implementation is easy.
Owner:CHONGQING HONGPAN MACHINERY FITTINGS
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