74results about How to "Guaranteed coincidence" patented technology

The present invention belongs to the field of shaft rod drilling, and in particular, relates to a shaft parts processing equipment, including a base, a first translation mechanism is provided at the upper front end of the base, a drilling unit is provided on the first translation mechanism, second translation mechanisms are provided at both the upper left and right ends of the base, the two second translation mechanisms are commonly connected to a U-shaped mounting frame, a top pressing mechanism is provided at the horizontal section of the mounting frame, a positioning mechanism for positioning the shaft rod is commonly provided at the two vertical sections of the mounting frame, a support platform for fixing the shaft rod in cooperation with the top pressing mechanism is provided at the upper part of the base, and an extension plate with a discharge hole is provided on one side of the support platform. The positioning mechanism includes a first U-shaped connecting plate, and the two ends of the first connecting plate are respectively fixedly connected to the two vertical sections of the mounting frame. The present invention can reduce the difficulty of operating the shaft rod when loading and unloading, ensure the drilling quality, and can be suitable for batch and efficient drilling processing.

The invention relates to the technical field of building construction, in particular to a bridge pile foundation steel casing positioning device which comprises a bottom plate and a sleeve, a side plate is fixedly mounted at the upper end of the bottom plate, an arc-shaped push plate is mounted at the inner end of the side plate through a hydraulic cylinder, the sleeve is square, and square tubes are mounted on the four sides of the outer end of the sleeve through connecting parts. The left side and the right side of the lower end of each square tube are each fixedly provided with a side plate, the lower end of each side plate is slidably connected with a limiting plate, the prism is installed among the four clamping blocks, the center position of the steel casing is actually measured, and it is guaranteed that the center of the prism coincides with the center of the steel casing; the device can track and measure the center coordinate value of the steel casing represented by the prism in real time according to the total station, compare the center coordinate value with the center design coordinate of the pile foundation to calculate the deviation value, and adjust the position of the steel casing according to the deviation value so as to finish the accurate positioning of the steel casing, and has the advantages of simple structure, simplicity and convenience in operation, stability, reliability, low manufacturing cost, high measurement speed, accurate measurement result and the like.

The utility model provides a plywood pressing device which comprises a machine frame, a placing table used for placing plates is arranged on the machine frame, and a pressing assembly used for gluing the plates placed on the placing table is arranged above the placing table and located on the machine frame. A plurality of elastic supporting assemblies used for supporting and limiting the pressing assembly are evenly distributed on the left side and the right side of the containing table. When the press-fit assembly conducts press-fit operation on plates, upward elastic supporting operation on the press-fit assembly is achieved through the elastic supporting assembly, plywood breakage caused by too large pressure in the press-fit process is avoided, unnecessary plate loss is avoided, the rejection rate is reduced, the press-fit efficiency is improved, and operation is simpler and more convenient.

The invention relates to the technical field of methane telemetering, and particularly provides a methane telemetering system which comprises a DFB laser, a visible light laser, a dichroic mirror, a reflector, a Cassegrain telescope system, a sensor and a data acquisition card, infrared band light and visible light are combined through the dichroic mirror, the combined light is emitted to measured gas through the reflector, and the measured gas is transmitted to the sensor through the Cassegrain telescope system. The combined light passes through the detected gas and then irradiates on a reflecting surface, part of echo reflected light passes through the detected gas again and then enters the Cassegrain telescope system, and after being converged by the Cassegrain telescope system, the sensor acquires an optical signal and converts the optical signal into an analog electric signal; and the analog electric signal is converted into a digital electric signal through the data acquisition card. Visible light is used for assisting in observing the scanning position of infrared band light, the defect that human eyes cannot directly observe the detection position in the methane laser telemetering process is overcome, the light receiving caliber is increased, and the detection signal quality is improved.

A rotor part drilling inclined hole clamp, comprising a base plate, which is provided with a support plate matched with the bottom structure of the rotor part; further comprising a expansion sleeve clamp assembly coaxially penetrating into the rotor part and connecting the rotor part with the base plate, the support plate leaving a space for the expansion sleeve clamp assembly to pass through; further comprising a plurality of clamping assemblies clamping the rotor part with the base plate along the circumference of the rotor part; further comprising a positioning assembly fixed on the base plate and in contact with the blade limiting any blade window, the support plate leaving a space for the positioning assembly to pass through. Through the reasonable setting of the part structure, the whole clamping process is convenient and fast, the inclined hole position is quickly positioned, the processing time and adjustment difficulty are greatly reduced, and the cost is reduced and the benefit is increased.

The present invention proposes a bolt Rockwell hardness test fixture, comprising a locking mechanism, a limiting mechanism, a base and a screw. The limiting mechanism is used to place the bolt to be tested; the locking mechanism is used to fix the limiting mechanism on the base; the base is used to place the entire fixture on the hardness tester screw, and ensure that the center line of the device coincides with the center line of the hardness tester; the screw is buckled on the base, and is used to tighten the entire fixture on the hardness tester screw through threads. When the fixture is used for hardness testing, the detection surface of the bolt head is perpendicular to the hardness tester pressure head, which can ensure that the bolt placement method complies with national standards. The device is easy and reliable to use, has a simple and compact structure, and can improve the detection quality and detection efficiency of smaller-sized bolts.

The utility model relates to the technical field of paint film testing, in particular to a device for testing the stone impact resistance of a paint film, which comprises a blanking pipe and a bearing platform positioned below the blanking pipe, the blanking pipe is used for directionally putting stones for testing; the bearing platform comprises a mounting support and a base plate, one end of the base plate is hinged to the mounting support, and the other end of the base plate is connected with the mounting support through a supporting piece. The length of the supporting piece or the connecting position of the supporting piece and the mounting support is adjustable, and the supporting piece is used for simulating stone hit conditions at different angles; the substrate is provided with a U-shaped card slot used for placing a test card. Through the device, the problem that an existing testing device is complex in structure can be effectively solved, and testing is more stable.

The application discloses a large-diameter super-long aluminum alloy tunnel pipe assembling and butt welding system and method, relates to the welding technical field, and can solve the problem that the existing welding method cannot ensure the welding efficiency and quality of the large-diameter super-long aluminum alloy tunnel pipe. The application embodiment discloses a large-diameter super-long aluminum alloy tunnel pipe assembling and butt welding method, which is used for welding a plurality of pipe fittings and two flanges into a whole pipe, and comprises the following steps: S1, simultaneously sleeving the end portions of two pipe fittings to be welded on the same inner support tool, and checking the edge deviation and coaxiality; S2, if the edge deviation and coaxiality meet the requirements, welding the pipe fittings to be welded on the inner support tool; and S3, repeating the single welding process composed of S1 and S2 n times, and performing at least one length correction before the whole pipe is welded.

The invention discloses a front-mounted eccentric double-tube guided drilling and injection machine, comprising a guide section, the guide section comprising an inner tube and an outer tube, one end of the inner tube being mounted on one end of the outer tube through a self-aligning bearing, and the other end being connected to a drum-shaped gear coupling, and the inner tube being eccentrically suspended in the outer tube through the self-aligning bearing and the drum-shaped gear coupling. The invention is that a double-layer drill pipe is driven by a double-power head drilling rig to rotate in opposite directions, and the inner drill pipe rotates continuously whether drilling a straight hole or directional deflection; and the outer drill pipe is directional deflection when not rotating, and acts as a casing when drilling a straight hole. The machine combines the structure of guided drilling and rotary spraying to realize the dual functions of guided drilling and back-dragging rotary spraying. The inner tube is connected to the inner shaft through a drum-shaped gear coupling to ensure that the axes of the inner tube and the outer tube at the rear end of the guide section coincide, and the inner and outer drill pipes are conveniently connected. The drum-shaped gear coupling can not only transmit drilling pressure and torque, but also has sealing properties to ensure that the fluid in the center hole of the inner tube does not leak into the annular space between the inner tube and the outer tube.

The present application relates to four-roll spindle multi-wire cutting technology and equipment field, specifically relates to a kind of for four-roll spindle multi-wire cutting machine auxiliary winding device and control method.Wherein device includes rack platform, 2n regular distribution and parallel guide rails are provided on the rack platform along y direction, n>1;Rack platform is installed with the lock sliding block of normally closed type matched with the one end of guide rail, rack platform is installed with the single-shaft moving platform for driving guide rail movement along x direction by motor control and being connected with the other end of guide rail, the guide rail is uniformly distributed with multiple variable shaft angle roller assembly.This device and control method can make the diamond wire acting on the surface of workpiece completely perpendicular to the axis of four main roller, ensure that the path of the diamond wire is basically unchanged when reciprocating, thereby reducing the wear between main roller axis slot and diamond wire, improving the service life of diamond wire, improving wire cutting quality, reducing cutting loss.

The utility model provides a sheet part punch tapping indexing device, including rotation indexing mechanism, rotation indexing mechanism includes the fixed baseplate of being fixedly connected with drill press concentrically, rotation indexing mechanism still includes rotation baseplate, rotation baseplate concentric indexing rotation relative fixed baseplate, and rotation baseplate drives rotation through the hand wheel drive mechanism of installation in vertical side surface, hand wheel drive mechanism drives rotation baseplate rotation through right angle bevel gear transmission, rotation baseplate concentric fixedly links nut pressure mechanism and drives nut pressure mechanism concentric rotation, and nut pressure mechanism includes support frame, and support frame realizes sheet part synchronous rotation through the concentric pressure fixed installation sheet part of nut and elastic pad. The utility model reduces sheet part punch tapping waste rate to 2%, compact structure, convenient operation, guaranteeing accuracy reduces processing cost at the same time.

This utility model relates to a prefabricated staircase positioning device, belonging to the field of prefabricated staircase production technology. Specifically, it is a positioning device for prefabricated staircase embedded parts, including a mold base plate, a fixing component, a positioning component, and a length adjustment component. This utility model ensures accurate positioning while maintaining mold stability, solving the problems of existing patented positioning plates and outer plates being rigid structures that are difficult to adapt to staircase embedded parts of different specifications, rigid positioning devices that may cause misalignment of embedded parts due to cumulative errors, and the use of a large amount of steel plates and angle steel that significantly increases the cost per unit.

The utility model relates to the technical field of coaxiality detection, in particular to a portable door hinge coaxiality detection device, which comprises a base and adjusting seats symmetrically distributed on two sides of the base, positioning mechanisms are arranged on the base and the two groups of adjusting seats, a laser transmitter is fixedly mounted on the right adjusting seat, and a laser receiver is fixedly mounted on the right adjusting seat. A photosensitive sensor is fixedly installed on the left adjusting seat, and an adjusting mechanism used for adjusting the distance between the two adjusting seats is arranged on the base. The positioning mechanism comprises a mounting seat which is fixedly mounted on the base and the two groups of adjusting seats, a turntable is arranged in the mounting seat, and three groups of annularly distributed clamping rods are arranged in the mounting seat. The three groups of clamping rods which act synchronously in the mounting base are matched with the annular gear transmission system, hinge shaft cores with different diameters can be clamped quickly, it is ensured that the detection reference coincides with the actual axis of a hinge, non-contact high-precision detection is achieved through cooperation of the laser transmitter and the photosensitive sensor, and the detection precision is improved. Measurement errors caused by contact pressure of a traditional mechanical probe are avoided.

A kind of end face precision grinding rotary clamping positioning device suitable for cylindrical spring, it is specially used in the equipment of cylindrical spring end face precision grinding, including spring clamping positioning piece, cylindrical spring rotary clamping piece, center height automatic adjusting piece, installation rack, spring clamping positioning device, for spring clamping fixation to positioning V-shaped block;Cylindrical spring rotary clamping device, for realizing that spring end face grinding machine tool can rotate cylindrical spring in grinding process;Center height automatic adjusting device, for realizing automatic adjustment of cylindrical spring rotary clamping device center height;Installation rack, for installing spring clamping positioning tool, cylindrical spring rotary clamping device and center height automatic adjusting device, to help spring to be placed to spring positioning tool for the accurate positioning of spring, firmly support each device.

The utility model discloses a kind of filling devices for oil exploitation well, it is related to oil exploitation technical field, specifically a kind of filling device for oil exploitation well, including material box, discharging component, supporting component, the discharging component includes rotating plate, motor, positioning pipe, two discharge pipes, the rotating plate rotation is installed on the bottom wall of material box, and two discharging holes are set on rotating plate;Through motor drive rotating plate rotation, so that discharge pipe can evenly with material into well, improve the uniformity and efficiency of filling.Compared with prior art, the filling device of the utility model does not need artificial constantly to input sandstone inside shell, reduce working strength, improve work efficiency.Meanwhile, through the accurate positioning of positioning pipe, it is guaranteed that material can accurately fall into predetermined position, avoid material scattering and waste, further improve the uniformity of filling.

This utility model discloses an automatic centering ball-distributing oscillator structure, belonging to the field of bearing assembly. The automatic centering ball-distributing oscillator structure includes an upper connecting seat, with a lower connecting seat at the bottom of the upper connecting seat. The upper and lower connecting seats are interconnected by a centering structure. This utility model solves the problems of traditional oscillating ball-distributing mechanisms, where a single soft rubber body directly connects to the ball distributor for rotational oscillation, or directly connects to an object for rotational oscillation. These mechanisms are prone to breakage of the connecting rubber body, resulting in a short service life, frequent replacement of parts, low production efficiency, and increased operating costs. More critically, when using a single soft rubber body structure, the concentricity of the oscillating component is poor, preventing automatic centering. When used in bearing production equipment, the poor concentricity of the oscillating component frequently causes it to bump against the bearing edge. This utility model patent solves all these problems, resulting in significant economic benefits.

This utility model relates to a correction structure for a color-coated steel sheet spraying device, including a guide assembly and a correction assembly disposed on the spraying device. The spraying device is equipped with a conveyor table connected to the guide assembly and the correction assembly respectively. This correction structure for the color-coated steel sheet spraying device, through the inclusion of the guide assembly and the correction assembly, uses an elastic component to transmit corrective force through flexible buffering, avoiding rigid contact that could cause scratches or indentations to the pre-treatment layer or coated layer on the steel sheet surface. It also prevents the steel sheet from excessively adhering to the edge of the conveyor table, which could cause the correction assembly to malfunction. Furthermore, it achieves dynamic and flexible correction of the steel sheet's position. Using a connecting rod assembly and an electric push rod, it controls two correction plates to synchronously push the offset edge of the steel sheet back to the center line of the spraying channel, ensuring that the center line of the steel sheet coincides with the center line of the spraying channel, thus eliminating uneven coating edges or missed coating caused by offset.

The application provides a multi-acupoint rapid positioning moxibustion auxiliary device, which comprises a lifting mechanism, a fine adjustment mechanism and a multi-beam combined positioning and heating mechanism. The acupoint positioning pattern is projected by a visible light projection module. The standard acupoint atlas can be accurately matched with the actual bony landmarks on the user's body surface through software zooming, panning and rotating. Compared with the wearable device with fixed hole positions, the application follows the principle of'same body inch' in traditional Chinese medicine, fundamentally solves the acupoint positioning deviation problem caused by the height and fat difference of users, significantly improves the positioning accuracy, combines the visible light positioning beam and the near-infrared heating beam into a coaxial output beam, ensures that the positioning indication light spot and the treatment heating light spot are completely overlapped on the target surface, and the acupoint marking point seen by the user is the accurate injection position of the near-infrared energy, realizing visual accurate light moxibustion.

The utility model provides a cold roll forming mechanism with an adjustable vertical roll. The cold roll forming mechanism comprises a roller support, a horizontal pressing roll and the vertical roll. The vertical roller is rotatably installed in the adjusting frame, and the side, close to the sectional material, of the adjusting frame is open, so that the vertical roller can make direct contact with the side face of the sectional material. The adjusting frame is movably connected with the roller support on the corresponding side through an adjusting lead screw, one end of the adjusting lead screw is fixedly connected with the adjusting frame, the other end of the adjusting lead screw penetrates through the roller support and then is locked through a lead screw locking nut, and the adjusting frame is driven to move transversely through stretching and retracting of the adjusting lead screw. The front end and the rear end of the adjusting frame are each provided with a linear shaft used for limiting transverse displacement of the adjusting frame. The vertical roll position adjusting device is simple in structure, reasonable in design and convenient to use, effectively improves the symmetry problem in the vertical roll position adjusting process, ensures that the axes of the vertical rolls on the left side and the right side coincide, and makes the vertical rolls more suitable for section type requirements; adjusting steps are simplified, and consumed time is shortened.

The present invention discloses a non-contact high-precision measurement method and a measuring device for the Z-axis direction of an object under microscopic conditions, and the measuring method includes: step 1: placing a standard gauge block on a loading platform, so that the top surface of the standard gauge block coincides with the focus of an optical lens, and at this time, the degree of a photoelectric distance sensor is cleared for the first time; step 2: adjusting the thickness of the standard gauge block when the loading platform rises, and at this time, the degree of the photoelectric distance sensor is cleared for the second time; step 3: the focus of the optical lens coincides with the zero point of the photoelectric distance sensor; step 4: making the top surface of the object to be measured on the loading platform coincide with the focus of the optical lens, and reading the degree of the photoelectric distance sensor to obtain the absolute value of the thickness of the object to be measured in the Z-axis direction. The present invention can detect the absolute value of the thickness of an object in the Z-axis direction in a narrow space, and its accuracy can reach the microscopic nanometer level, and the detection efficiency and detection accuracy are significantly better than the prior art.

The application discloses an in-situ environmental device suitable for in-situ loading and heating of metal materials and relates to the field of material mechanical property testing.The device comprises a shell base, a sample clamping assembly, an environmental cavity, a loading mechanism, a force sensor, a heating assembly and a thermocouple, the environmental cavity is composed of a light transmission cylinder, a supporting cylinder and a supporting cylinder base, the heating assembly is installed on the bottom surface of an upper clamp and covers the periphery of a sample, the sample is locally heated through a silicon carbide heating sheet, the loading mechanism is arranged in the shell base to apply an axial load to the sample, the force sensor collects load signals in real time, and the thermocouple monitors the temperature of the sample area and feeds back to a temperature control unit.The device has compact structure and good imaging compatibility, and can realize in-situ testing and three-dimensional damage evolution analysis of metal materials under thermal-mechanical coupling conditions.

The utility model relates to the technical field of positioning tools, and discloses a drilling positioning device which comprises a positioning mechanism, a drilling mechanism, a drilling mechanism, a drilling mechanism, a drilling mechanism, a drilling mechanism, a drilling mechanism and a drilling mechanism, and the positioning mechanism is provided with a positioning plate for supporting a workpiece and at least one drill bit via hole formed in the positioning plate; the drilling jig is detachably connected with the positioning mechanism, the drilling jig comprises a drilling jig pressing plate and at least one drilling sleeve arranged on the drilling jig pressing plate, the drilling sleeves correspond to the drill bit via holes one to one, and the axial leads of the corresponding drilling sleeves and the drill bit via holes coincide; the drill die pressing plate and the positioning plate are arranged on the two sides of the workpiece respectively. According to the drilling positioning device, the drilling position can be positioned, an operator can conveniently align a drill bit of a bench drill or a hand drill with a drill sleeve, the drill sleeve plays a guiding role, rapid drilling can be conveniently carried out, positioning is rapid, efficiency is high, and precision is high. Manual scribing is not needed, operation is easy and convenient, punching through a punching machine after a simple punching die is manufactured is not needed, the period for increasing or changing the hole positions is short, and cost is greatly reduced.

The present invention relates to a drill grinding machine, which comprises a frame, a grinding wheel, a revolution device arranged on the frame and a rotation device fixedly connected to the revolution device, a drill bit is fixedly arranged on the rotation device, the grinding wheel machine is arranged corresponding to the drill bit, and a feeding mechanism for controlling the distance between the drill bit and the grinding wheel machine is arranged on the frame; the revolution device is connected to a revolution drive device, the rotation device is connected to a rotation drive device, the revolution axis of the revolution device and the rotation axis of the rotation device are at an angle α of 0° to 50°, the swing angle of the rotation axis is 35° to 40°, and the rotation axis rotates synchronously with the revolution axis. The structure is simple, and the grinding method combining the revolution and rotation of the drill bit is adopted for grinding. Through the movement of the rotation axis, the top angle of the drill bit can be ground and the chisel edge angle can be corrected. Through the joint movement of the revolution axis and the rotation axis, the back angle, chisel edge and main cutting edge of different parts of the drill bit can be ground.

This utility model discloses a spring force adjustment mechanism for reducing spring wear and a pressure-holding device using the same. The mechanism includes a spring and a spring force adjustment assembly. The spring force adjustment assembly includes a pressure adjusting component and a sleeve. The pressure adjusting component is rotatably and vertically connected to the upper part of the sleeve. One end of the spring is connected to the lower part of the sleeve, and the other end extends out of the sleeve and connects to the component to be pressure-held. A contact block is provided between the pressure adjusting component and the spring. The bottom surface of the contact block abuts against the spring, and the top surface of the contact block abuts against the bottom surface of the pressure adjusting component. A first placement position is provided on the top surface of the contact block, and a second placement position is provided on the bottom surface of the pressure adjusting component. The first and second placement positions correspondingly form a receiving cavity. A steel ball is placed in the receiving cavity with a clearance fit. When the pressure adjusting component adjusts the spring preload, the steel ball applies pressure evenly to the contact block. This utility model achieves a significant reduction in spring wear and precise control of the preload.

This invention belongs to the field of industrial automated assembly technology. It provides an automated control system for valve assembly based on intelligent vision. During the intelligent vision-assisted assembly of valves, the system detects whether there is an angle between the valve stem axis and the valve body flow channel axis, and determines whether the actuator is perpendicular to the valve body mounting surface. If not perpendicular, it analyzes the uniformity of the bolts distributed on the actuator flange to assess the uniformity of the force. From the perspective of installation accuracy, combined with real-time monitoring and feedback of the installation angle using intelligent vision technology, the bolt tightening force can be adjusted in a timely manner to ensure that the actuator flange is perpendicular to the valve body mounting surface. This ensures that the valve stem axis coincides with the valve body flow channel axis. Furthermore, uniform force distribution reduces the superposition effect caused by uneven force distribution, prevents an angle between the valve stem axis and the valve body flow channel axis, ensures the consistency of the valve stem and valve body flow channel axes, and makes the internal mechanical structure of the valve meet design requirements, thereby improving the assembly quality of the valve.

The utility model discloses a packaging bottle which comprises a bottle body, a bottle opening portion is arranged at the upper end of the bottle body, a bottle cap is connected to the outer side of the bottle opening portion, a ring sleeve is sleeved on the outer side of the bottle body and comprises a first ring portion located on the outer side of the bottle opening portion and a ring sleeve upper cover located at the upper end of the first ring portion, and a guide block is installed on the inner side of the first ring portion in a sliding connection mode. The bottle cap comprises an extending part located at the lower end, the bottom of the extending part can downwards penetrate through the annular sleeve upper cap, a second hole is formed in the bottle cap, after the extending part is inserted into the annular sleeve upper cap, the bottom face of the extending part is attached to the upper end face of the guide block, the outer circumferential wall of the extending part is attached to the inner circumferential wall of the annular sleeve upper cap, and the second hole can be in threaded connection with the bottle opening part. According to the bottle cap, when the bottle cap is screwed in, the axial direction of the bottle cap coincides with the axial direction of the bottle opening part, and the inner circumferential wall of the ring sleeve upper cap and the top face of the guide block are attached to the corresponding portion of the bottle cap all the time, so that it is guaranteed that the bottle cap is not twisted during screwing. When the bottle cap needs to be screwed out, the spring provides upward thrust for the bottle cap through the guide block, and more labor is saved during screwing out.

This invention belongs to the field of tight oil and gas geophysical exploration and development technology, and provides a method and apparatus for identifying tight sandstone gas reservoirs based on gas-bearing characteristics through well logging. The method includes collecting well logging data of two porosities from tight sandstone gas reservoirs; when the two porosity well logging data overlap in mudstone sections, using a dimensionless curve calculated based on the envelope area between the two porosity well logging data, the gas-bearing characteristics of each reservoir section of the tight sandstone gas reservoir are identified. This invention is used for rapid evaluation of gas-bearing reservoir properties in well logging evaluation of gas reservoirs, avoiding the problems of weak gas logging response information in tight gas reservoirs, reduced curve identification ability due to mud invasion, and difficulty in determining the rock skeleton under complex lithological conditions, thus achieving the goal of rapidly identifying gas reservoir properties using well logging data.

The invention relates to a plate continuous cleaning device and method with an adjustable spraying and drying unit, and belongs to the technical field of precise cleaning and drying, and the plate continuous cleaning device and method comprises the steps that S1, a main body frame, a supporting conveying piece, a Bernoulli self-suspension cleaning assembly and a sound wave desorption drying assembly are deployed; s2, a conveying channel is widened, horizontal displacement and rotation of a spray head are limited through a vertical guide mechanism, and only the vertical freedom degree is reserved; s3, introducing liquid to establish a Bernoulli negative pressure suspension gap, driving the piezoelectric array to generate an ultrasonic cavitation field, and locking a resonance point based on impedance feedback; and S4, high-strength air ultrasound is utilized to enable a water film interface to oscillate and dewet, and then water drops are stripped through high-speed laminar flow of a Coanda air knife. According to the scheme, passive follow-up of the spray head to fluctuation of the surface appearance of the plate is achieved, and the problem of uneven cleaning or collision risk caused by warping of the plate is effectively solved.

This invention relates to the field of plant cultivation technology, and discloses a plant growth promoter and its application in lotus cultivation under high water levels, comprising: immersing lotus seedling rhizomes in an activating solution; and releasing an initial density of 1.6 g / cm³ into the cultivation water area. 3 Up to 1.8 g / cm 3 The growth promoter pellets; after being added to the mud, the growth promoter pellets utilize reduction potential to trigger in-situ hydration and expansion of the matrix layer, reducing its density to 1.05 g / cm³. 3 Up to 1.10 g / cm 3 Furthermore, by expanding the cross-sectional area and utilizing the viscous resistance of the bottom mud generated by the expansion to balance gravity, the growth-promoting core is spatially anchored and released 5cm to 15cm below the bottom mud surface. This invention utilizes an environment-driven physical phase change mechanism to overcome the settling constraints of fluidized bottom mud, ensuring that the growth-promoting components are precisely locked in the rhizosphere zone, thereby enhancing the survival rate of seedlings in deep water environments.