435results about How to "Damage will not" patented technology

The invention relates to a material diversion mechanism, which is used in a material diversion system of a roller conveyer line and comprises a first conveying roller path (4), a second conveying roller path (1) and a path separation mechanism. An angle of 90 degrees is formed between the first conveying roller path (4) and the second conveying roller path (1). The path separation mechanism is arranged at the turning point of the first conveying roller path (4) and the second conveying roller path (1), is arranged under the first conveying roller path (4) and comprises a fixed seat body (11), a bearing seat body (13), a driving shaft (12), a driving sprocket (2), a driving belt pulley (3), a belt bearing body (14), a belt bearing wheel (5), connecting rods (8), a lifting cylinder (7), a tension adjusting cylinder (9) and a tension adjusting wheel (10), wherein the belt bearing body (14), the belt bearing wheel (5), the driving belt pulley (3) and a belt (6) form a belt conveyor unit, and the fixed seat body (11), the two groups of connecting rods (8) and the belt conveyor unit jointly form a parallelogram mechanism. The material diversion mechanism improves the material diversion efficiency and can protect materials against damages during diversion.

The normal pressure plasma polishing method is provided. The normal pressure plasma polishing method includes providing plasma gas and reaction gas in the volume ratio of 4-1000; and starting RF power source and increasing power gradually while controlling the reflected power to zero, with the initial effective power being 180-240 W, normal power being 400-1200 W, and maximum power being 1500 W. The present invention realizes super smooth surface machining by means of plasma chemical reaction at normal pressure, and has no need of vacuum chamber, low cost, wide application range, high machining efficiency, no surface damage and contamination, and high surface smoothness up to 1nm Ra.

The invention relates to an atmospheric plasma buffing attachment. The invention aims to overcome shortcomings in normal mechanical buffing process and solve problems of low efficiency, damage for surface and semi-surface and hardness for clean in process of preparing ultra-smooth surface with fragile material such as silicon carbide. The main components comprise: sealed working capsule (51), plasma torch (53), the first linked system (52), the second linked system (57), the first flow quantity controller (60), the second flow quantity controller (65), reacting gas bottle (61), plasma gas bottle (62), and gas recycle treating device (63); the plasma torch is installed on the first linked system. The ultra-smooth surface is realized under normal pressure through plasma chemical reaction, which can reduce device cost and enlarge application range. The working efficiency is ten times than that of traditional method, and there is no surface damage and no surface pollution.

The invention relates to a pneumoperitoneum-free peritoneoscope suspending type abdominal wall puncture device, and overcomes the defect that secondary trauma occurs easily to patients by using a kirschner pin to puncture into abdominal walls to suspend the abdominal walls. The puncture device comprises a sleeve and a plurality of supporting arms arranged on the sleeve in a central radial shape, wherein a deformation portion is connected to the end portion of the sleeve and connected with the supporting arms; and one ends of pull ropes are fixed on the end portion of the supporting arms, lugs with rope holes are arranged on the sleeve away from the deformation portion, and the other ends of the pull ropes penetrate through the rope holes in the lugs to be fixed on the outer portion of the abdominal wall. A supporting surface is arranged after the supporting arm is opened, and a barrel-shaped space is formed after the supporting arm is suspended, so that enough surgical fields are provided during the surgery; and the supporting arm of the puncture device is inserted from a cut of the abdominal wall and is opened gradually, so that the kirschner pin is not needed to perform puncture and suspension, the secondary trauma is prevented, and the puncture device is helpful for alleviating traumatic pains of patients.

The invention discloses a finite element model correction method for a large-span steel bridge based on a uniform temperature response monitoring value, and the method comprises the following steps: 1), carrying out the analysis of yearly monitoring data of the large-span steel bridge, and finding a response law of a structure under the action of a uniform temperature field; 2), building a preliminary finite element model according to design data; 3), preliminarily determining the horizontal rigidness of a steel bridge supporting seat through employing an iteration method; 4), carrying out the sensitivity analysis of the large-span bridge based on the temperature response data of the large-span bridge, and determining a design variable with the higher coefficient of association with actual measurement data; 5), carrying out the optimization analysis of a large-span bridge finite element model through reducing the difference between a finite element model calculation result and the actual measurement data. Compared with a commonly used finite element model correction method based on a power response result (test modal data), the method is simple and accurate, is lower in cost, and is good in safety.

The invention discloses a corn sobering-up peptide and a preparation method thereof. In the method, corn gluten meal is taken as a raw material for the product provided by the invention, alkali protease Alcalase is adopted for hydrolysis for 2 hours under optimal conditions, compound protease Protamex is further added for hydrolysis for 3 hours under the optimal conditions, and corn sobering-up peptide powder is obtained by crude separation, ultrafiltration, concentration and spray forming. The peptide section with the molecular weight of less than 1200Da in the product accounts for 73.19%, and the content of lactamic acid and the content of aminocarproic acid are greater than 6.43% and 12.42% respectively. The product can generate stable nicotinamide adenine adinucleotide (NAD<+>) by improving the concentration of the lactamic acid and aminocarproic acid in blood, enhance the activity of alcohol dehydrogenase and acetaldehyde dehydrogenase, promote decomposition and metabolism of ethanol in vivo, thereby reducing the concentration of the ethanol in the blood, increasing the supply of coenzyme, playing a role in protecting liver and playing a role in preventing liver damages caused by alcohol, such as fatty liver and the like.

A method of using compound enzyme preparation to execute same bath boiling-off and bleaching to cotton fabric, relates to a plurality of alkaline enzyme preparation in the application technique field of the cotton fabric boiling-off and bleaching technique. The enzyme preparation for boiling-off and bleaching is compounded and mixed by horniness enzyme , alkaline pectic enzyme, alkaline xylanase, alkali cellulose enzyme and sugar oxidizing enzyme. The invention adds in the compound enzyme preparation, amylaceum, oxygen bleaching stabiliser RB-3, osmotic agent and JFC triton X-100 under the condition of 55-70 EDG C and ph 8-10 to execute boiling-off to the cotton fabric. After the boiling-off, four acetyl ethylene diamine (TAED) is added in the boiling-off bath to activate hydrogen peroxide to bleach the fabrics for 30min. After the inventive process to cotton fabric, the invention has a high cotton fabric impurity clearance, good fabrics wetting property and high whiteness. The invention is adopted to substitute the traditionary concentrated alkali high temperature chemical processing method, thereby having saved energy, reduced consumption, short process flow and friendly surroundings.

To provide a transporting system for transporting glass substrates one by one from exchangers to a manufacturing line without transfer from one stationarily installed conveyor to another, capable of performing delivery and reception simultaneously and establishing an efficient transportation without loss of the tact time. The glass board transporting system is to make cassette transport of glass substrates from an automated warehouse to a plurality of exchangers laid parallel and then transport them one by one from the exchangers to the manufacturing line, wherein each exchanger is furnished internally with a conveyor to load or unload glass substrate on / from a cassette rising and falling within the exchanger, and on that side of each exchanger which makes loading and unloading of glass substrates, a delivery conveyor to deliver the glass substrates to the manufacturing line and a reception conveyor to receive the glass substrate discharged from the manufacturing line are installed at a certain spacing in the vertical direction in such a way as capable of running independently without interference, and further the conveyor installed inside the exchanger is made possible to rise and fall corresponding to the levels of the delivery conveyor and the reception conveyor.

The invention discloses a concrete column base joint containing a high-ductility replaceable energy-dissipation connecting assembly. The concrete column base joint is arranged on the bottom of a rectangular-section column of a concrete structure, and comprises a concrete column, the high-ductility replaceable energy-dissipation connecting assembly and a concrete base, wherein the high-ductility replaceable energy-dissipation connecting assembly is separately welded with the concrete column and a steel connecting block pre-embedded in the concrete base to form a continuous reliable force transmission system. The bottom of the concrete column is equipped with a column bottom reinforcing core column, so that column bottom pressure can be borne under action of an earthquake, and damages are avoided; and the high-ductility replaceable energy-dissipation connecting assembly is mounted on four side surfaces of the column base joint, so that stressed longitudinal bars on the original positionsare replaced, and therefore, hysteretic behavior can be utilized to dissipate earthquake energy during a medium earthquake or a big earthquake, and damages can be controlled inside.

The invention relates to a device and a method for detecting roundness and straightness of cylindrical holes by coaxial light and belongs to the technical field of optical detection. The prior art is low in detection precision and narrow in detection range and possibly causes damage to the surface of a cylindrical hole being detected. The device is disposed between a detecting laser source and a camera. An iris diaphragm, a light barrier ring, a conical lens and a frosted glass imaging screen are axially arranged in sequence. The bottom of the conical lens faces to the light barrier ring and is provided with a central through hole. The method includes: the cylindrical hole to be detected is located between the conical lens and the frosted glass imaging screen and is axial with coaxial light; the distance of hollow beams from outer wall to inner wall is changed by regulating the iris diaphragm; the hollow beams emerging from a conical surface of the conical lens converge and reflect once at different sectional positions of the cylindrical hole being detected, and light ring images for each section are present on the frosted glass imaging screen successively; the images are acquired by the camera and processed by a computer, roundness of different sectional positions of the cylindrical hole to be detected is calculated first by the least square circle method, and straightness of the cylindrical hole is obtained then.

The invention discloses a collaborative defense method for network protection and system. The system comprises a decision-making and deployment layer and a collaboration and monitoring layer, whereinthe decision-making and deployment layer uses an acquired network security early warning event, a defense intension is formulated according to the defense purpose of the network security and the current situation of the network security, a network defense strategy is later generated by a decision-making engine, and a defense task is deployed according to the defense strategy; the collaboration andmonitoring layer comprises a control center and network security devices, thereby realizing collaborative task deployment between network security devices and real-time monitoring on the network defense condition; the control center is in communication connection with the decision-making and deployment layer and the network security devices for data flow control and logical control; and the control center comprises a collaborative defense strategy analysis module, a collaborative defense strategy subscription module and a collaborative defense strategy distribution module. A collaborative defense solution with security perception, collaborative protection and centralized management as the core can be given, and an active, integrated and comprehensive dynamic security protection system isrealized.

The invention relates to a rapid rolling target de-rotation cell sail facing in-orbit service and an operation method thereof, relates to an operation method of the de-rotation cell sail, and is used for solving the problems of the existing noncontact de-rotation scheme that an out-of-control satellite body can be secondarily damaged, the structure is complicated, the de-rotation efficiency is low and the de-rotation cost is low. In the invention, a de-rotation satellite consists of a mother satellite and a cell sail, wherein the cell sail is used as an angular momentum de-rotation device which is attached to the out-of-control satellite and is a specific execution mechanism for executing the de-rotation task, the mother satellite is an energy source of a de-rotation torque and is also a control center, before the de-rotation, the cell sail is hidden in the mother satellite, and when in work, the cell sail is cooperated with the mother satellite to complete the de-rotation of the out-of-control satellite by virtue of a series of process such as approaching, adsorption, de-rotation, recovering and the like. The rapid rolling target de-rotation cell sail is suitable for eliminating the rotation of a rapid rolling target in the space.

The invention provides a semiconductor structure and a forming method thereof. The forming method of the semiconductor structure comprises the steps that a semiconductor substrate is provided; a mask layer and a sacrificial material layer located on the surface of the mask layer are sequentially formed on the surface of the semiconductor substrate; the sacrificial material layer is etched to form a plurality of discrete sacrificial layers; side walls are formed on the side wall surfaces of the sacrificial layers; the sacrificial layers are removed; and supplement side walls are formed on the side wall surfaces of the side walls. By the method, improvement of the performance of the formed semiconductor structure is facilitated.

The invention discloses a unit temperature response monitoring value based correction method for a finite element model of a large-span steel bridge. The method comprises the following major steps of 1) analyzing annual monitoring data of the large-span steel bridge and determining static strain and displacement generated by unit uniform temperature change based on a relative probability histogram of a structure response value during unit temperature change; 2) establishing a primary finite element model according to design data; 3) preliminarily determining the horizontal stiffness of a steel bridge support by adopting an iterative method; 4) performing sensitivity analysis on the large-span steel bridge based on actual measurement data of displacement at the large-span steel bridge support and strain in a key position, and determining a design variable with a relatively high coefficient of correlation with the actual measurement data; and 5) performing optimization analysis on the finite element model of the large-span steel bridge by reducing a difference value of a finite element calculation result and the actual measurement data. Compared with a generally adopted finite element model correction method based on dynamic response results of test modal data and the like, the method has the advantages of simplicity, accuracy, relatively low expense and high security.

The invention discloses a 18650 battery peeling and encasing machine, which comprises a rack, wherein the rack is sequentially provided with a feeding mechanism, a peeling mechanism, a stripping detection mechanism, a discharging mechanism and an encasing mechanism from left to right; the peeling mechanism comprises a reclaiming and transferring component; a barcode scanner for scanning batteriesis arranged in the feeding mechanism; a film cutting component and a stripping component are arranged in front of the reclaiming and transferring component; a whole box of batteries are put into the feeding mechanism and then transported through the feeding mechanism and are subjected to code scanning; the reclaiming and transferring component reclaims materials and transfers the materials to thefilm cutting component; the film cutting component carries out film cutting on the batteries; the reclaiming and transferring component transfers the batteries to the stripping component to strip thebatteries; the reclaiming and transferring component transfers the batteries to the stripping detection mechanism to detect the peeling conditions of the batteries; good products flow into the discharging mechanism and enter the encasing mechanism after passing through the discharging mechanism; defective products flow into a defective product storage tank; and the steps are circulated. The 18650battery peeling and encasing machine is capable of completely peeling the batteries, is good in peeling effect, high in accuracy and good in reliability and does not harm the batteries.

The invention discloses a steel bridge finite element model correction method based on a non-uniform temperature response monitoring value. The method mainly includes the steps of: 1) analyzing the year-round monitoring data of a steel bridge, and finding out the response rule of structure under the action of a non-uniform temperature field, 2) establishing an initial finite element model according to design data, 3) preliminarily determining the horizontal stiffness of a steel bridge bearing by iteration method, 4) performing sensitivity analysis on the steel bridge on the basis of steel bridge temperature response data, and determining a design variable having a high correlation coefficient with actually measured data, and 5) conducting optimization analysis on the steel bridge finite element model by reducing the difference between a finite element calculation result and the actually measured data. Compared with the universally adopted finite element model correction method based on experimental modal data and other dynamic response results, the method provided by the invention has the advantages of simplicity and accuracy, low cost and good safety.

The invention discloses a method for culturing human airway epithelial cells. The method comprises the following steps of: (1) acquiring human airway epithelial cells which are subjected to primary culture; and (2) acquiring human airway epithelial cells which are subjected to subculture, namely cleaning by using a phosphoric acid buffer solution when the fusion density of primary cells reaches 70 to 90 percent, adding a 0.25 percent trypsin solution, digesting at room temperature for 5 to 10 minutes, collecting cell suspension when cells are retracted and suspended, adding an equal amount of solution containing a protease inhibitor, performing centrifugal collection on the cells, inoculating in a novel culture dish containing a complete medium at the concentration of between 1 and 6*10<6> cells / ml, culturing, and thus obtaining the human airway epithelial cells which are subjected to subculture when the cells grow to a logarithmic growth phase after 3 to 5 days. The method for culturing the human airway epithelial cells has a stable technology and is high in repeatability; and the cultured cells have high purity and uniform morphology, grow well and can be subjected to continuous passage.

The invention relates to an automatic sludge cleaning device for sewage inspection wells of municipal drainage pipeline systems, which comprises a bottom plate, a moving device is arranged at the lower end of the bottom plate, a lifting and fixing device is arranged at the upper end of the bottom plate, a cleaning device is installed at the lower end of the lifting and fixing device, and a moving device , The lifting and fixing device and the cleaning device are used in conjunction with each other to complete the automatic cleaning process of the sewage inspection well. The present invention can solve the existing problems in the cleaning process of the existing sewage inspection well, such as the need to manually carry out the downhole cleaning operation, the need to manually transport lifting tools with the aid of trolleys and other tools, the need to manually use lifting tools to clean the inner wall of the sewage inspection well, and the stimulation in the sewage inspection well. Sexual gas is easy to damage the health of the staff. It is complicated to manually clean the inner wall of the sewage inspection well with the help of lifting tools. Manual cleaning of the sewage inspection well is labor-intensive, poor stability and low work efficiency. The function of automatic cleaning of the sewage inspection well has been realized.

Disclosed are a post-etching ashing method and a forming method of a magnetic sensor. The post-etching ashing method comprises providing a substrate, wherein the surface of the substrate is provided with a tantalum oxide layer which is formed through etching, and the surface of the tantalum oxide layer is provided with a photoresist layer which serves as the mask for etching the tantalum oxide layer; after finishing the etching process, performing an ashing process on the photoresist layer on the surface of the tantalum oxide layer, wherein the ashing gas of the ashing process comprises oxygen and etching gas containing fluorine, the temperature range of the ashing process is smaller than or equal to 150 DEG C, and the radio frequency range of the ashing process is smaller than or equal to 500 watts. Due to the fact that the ashing gas contains the oxygen and the etching gas containing the fluorine, the photoresist layer on the surface of the tantalum oxide layer can be fully removed, and damage of the ashing process to the tantalum oxide layer and the substrate can be reduced.

The invention discloses numerical-control machining equipment for machining shaft bushings. The numerical-control machining equipment is characterized by comprising a rack, a spindle box, an X-axis feeding mechanism, a Y-axis feeding mechanism, a bushing feeding mechanism, a bushing clamp and a drilling machine; the bushing clamp is arranged on the spindle of the spindle box and is used for clamping the bushings to be machined; the X-axis feeding mechanism comprises a first servo motor, an X-axis guide rail, an X-axis sliding seat and an X-axis threaded rod; the Y-axis feeding mechanism comprises a second servo motor, a Y-axis guide rail, a Y-axis sliding seat and a Y-axis threaded rod; the bushing feeding mechanism comprises a feeding base, a Y-axis guiding rod, a guiding-rod support, a feeding sliding seat, a Y-axis driving cylinder, a feed slot and an X-axis pushing cylinder; the drilling machine is located above the bushing clamp; a turning tool rest and a tap holder are arranged on the Y-axis sliding seat. By the arrangement, a series of automatic machining of stepped outer wall surfaces, inner threaded holes, radial holes and the like on the bushings can be achieved, workingefficiency can be increased by times, high machining precision is achieved, and production cost is greatly reduced.

The invention discloses a method for shaping a scaling ladder type plastic-dipped metal rack tree. The method mainly comprises the following steps of: (1) designing special parameters of a tree shape, destructing a certain quantity of single plants according to corresponding parameters, and manufacturing a tree cultivation shape technical pattern of the corresponding single plants; (2) manufacturing and mounting a scaling ladder type plastic-dipped metal rack and a supporting frame, so as to manufacture a tree cultivation template; (3) planting shaped nursery stocks in a nursery cultivation field below the scaling ladder type plastic-dipped metal rack; (4) when a tree grows to an oriented tree cultivation height, binding tree twigs on the tree cultivation template in an oriented manner; and (5) carrying out shaped nursery stock management, mainly including bud fixing, bud picking, binding and unbundling, and thickening cultivation. The method provided by the invention has the advantages of simpleness in operation, good shaping effect and long shaping retention period; the ornamental value is improved, and the watch time is prolonged; the scaling ladder type plastic-dipped metal rack and the supporting frame are durable, and can be continuously shaped for many years, so that the requirement of a shaping length can be met; the polarized shaping can be realized; the trees are prevented from being damaged; and the standard scale production can be realized by accurately shaping according to the pattern.

The invention relates to a main brake cylinder (3) for a hydraulic vehicle brake system (1) of a motor vehicle, which comprises an electric motor (2) that is operated as a generator for decelerating the motor vehicle. For service braking, pressure is applied to a brake circuit Il by the main brake cylinder (3) and to another brake circuit I by a hydraulic pump (6). In order to reduce a pedal force, according to the invention a first piston (10) has a smaller piston surface and a second piston (11) only moves if a greater brake fluid volume is required. A preloaded hydraulic accumulator (20) limits an increase in pressure.

The invention discloses a method for improving the lateral branch rooting survival rate and the seed reproduction quality of radish. The method comprises the following steps: a second-stage lateral branch is taken as a cutting branch, after the cut-off lateral branch heals naturally, the cut-off lateral branch is soaked in an indolebutyric acid solution for 10 seconds and then inserted in a seedbed substrate composed of coco coir, vermiculite and mushroom dreg; a mixed solution containing Huabao No.1, Huabao No.2 and naphthylacetic acid is sprayed on the branch so that the branch can be acclimated and then survives; when new leaves come out, transplanting is performed by use of an underground simple culture tank filled with planting soil which is composed of coco coir, vermiculite, mushroom dreg and decomposed cow dung; after the cutting lateral branch survives, ventilation and light illumination are realized, Huabao No.1 and Huabao No.2 are sprayed, and after seeds are mature, the seeds are harvested. The method for improving the lateral branch rooting survival rate and the seed reproduction quality of the radish has the advantages that the method of rooting by use of the second-stage cutting lateral branch of the radish is adopted, a new method is provided for solving the problem of seed reproduction material loss of the radish due to the infringement of soft rot, the plants cultured by use of the method are well developed in root system, high in transplanting survival rate, and stable in heritability, and furthermore, the seed reproduction can be saved.

The invention discloses an underbanlanced well completion method and device. And the device is like a round tube, where the two ends of the round tube are equipped with screwed connection segments, the middle of the round tube wall is provided with several axial grooves, and the device produces plastic deformation by underground expansion tool and clings to the well wall; besides, the expansion of the tube wall makes the middle axial grooves become through holes so as to make the inside and outside of the tube connected, thus playing a role of filter sieve tube. During construction, it need not fix the well with cement, therefore it can make well fixing operation on underblanced condition, putting column in and piercing reservoir. And the device is an underbalanced well completion device applied to various geological conditions, achieving the purposes of scientifically completing well, protecting reservoir and raising output of oil and gas.

The present invention provides a mold for injection compression molding capable of maintaining the position of the injection compression molded product in a molding space (30) after molding the injection compression molded product. According to the present invention, a compression block (12) and an outer peripheral plate (11) are provided in the second mold (2), wherein the compression block reduces the volume of the molding space (30) to compress the filled molding resin (31 ), the peripheral plate is located around the compression block (12). Its structure can change the relative positional relationship between the compression block (12) and the outer peripheral plate (11), without causing the outer peripheral plate (11) and the ejector pin used to eject the injection compression molded product from the second mold (2) The relative positional relationship of (24) changes.

The invention discloses an automatic sorting device for sea cucumber seedlings. The automatic sorting device for the sea cucumber seedlings comprises a machine frame, wherein a motor is fixedly arranged at the upper end of the machine frame; the motor can drive a cam to rotate; the cam can drive a sorting sieve to vibrate; the sorting sieve is connected into the machine frame through a plurality of preloaded springs which are distributed uniformly; a feeding port is formed in the upper end of a shell body of the sorting sieve; a first-stage sieve mesh is arranged below the feeding port in a tilted way; a first-stage outlet is formed in the lowest end of the first-stage sieve mesh; a second-stage sieve mesh which is arranged in the tilted way is arranged below the first-stage sieve mesh; a second-stage outlet is formed in the lowest end of the second-stage sieve mesh; a third-stage outlet is formed in the shell body of the sorting sieve below the second-stage sieve mesh; the tilting directions of the first-stage sieve mesh and the second-stage sieve mesh are opposite; a material guide plate which is in the same direction as the tilting direction of the first-stage sieve mesh is also arranged between the first-stage sieve mesh and the second-stage sieve mesh; the material guide plate can convey materials falling from the first-stage sieve mesh to the higher end of the second-stage sieve mesh; the mesh aperture of the first-stage sieve mesh is greater than that of the second-stage sieve mesh.

The invention discloses an adjustable tubular bus fitting, and belongs to the technical field of tubular bus connection. The adjustable tubular bus fitting comprises a tubular busbar clamp, a guide rod, an expansion joint and an aluminum section, wherein an upper tubular busbar and a lower tubular busbar are connected by the tubular busbar clamp and the expansion joint; the two ends of the aluminum section are respectively connected with one side of the expansion joint; the two ends of the guide rod are respectively connected with the other side of the expansion joint; the tubular busbar clamp comprises an upper tubular busbar clamp and a lower tubular busbar clamp, wherein the upper tubular busbar clamp clamps the upper tubular busbar, the upper tubular busbar is provided with an upper cover plate, and the upper cover plate is connected with the upper tubular busbar clamp through a bolt; the lower tubular busbar clamp clamps the lower tubular busbar, the lower tubular busbar is provided with a lower cover plate and the lower cover plate is connected with the lower tubular busbar clamp through a bolt; the adjustable tubular bus fitting further comprises an upper clamping plate and a lower clamping plate; the lower end of the upper tubular busbar clamp is provided with the upper clamping plate; the upper end of the lower tubular busbar clamp is provided with the lower clamping plate; the upper tubular busbar clamp, the upper clamping plate, the lower tubular busbar clamp and the lower clamping plate are one-time molded by casting by using aluminum alloys; and the mounting distance can be adjusted without field setting-out and processing.

The invention belongs to the field of perovskite solar cells, in particular to a semitransparent perovskite solar cell and a preparation method thereof. The preparation method comprises the followingsteps: a transparent conductive layer (P1) on a tangent line is peeled off by an ultrafast laser; Functional layers are deposited on the clean transparent conductive layer in turn, and the functionallayers on the tangent line are peeled off by ultrafast laser without damaging the transparent conductive layer (P2). The metal electrodes are deposited on the clean functional layer, and the metal electrode layer and the functional layer on the tangent line are peeled off by the ultrafast laser, and the positions of the transparent conductive layers (P3), P1, P2 and P3 are staggered mutually without damage; After the tangent is completed, the semi-transparent perovskite solar cell is prepared. The semi-transparent perovskite solar cell is proces by the laser, the active part of the cell is peel off by the laser, the active area of the module is reduced, and the transmittance of the module in the visible light range is remarkably increased.

A method for cleaning optical glass comprises the steps that a first cleaning agent is formed, wherein the first cleaning agent is an acidic cleaning agent; the glass to be cleaned is provided; and the first cleaning agent is adopted for carrying out first wet cleaning treatment on the glass to be cleaned. According to the method for cleaning the optical glass, the first cleaning agent is adoptedfor carrying out first wet cleaning on the glass to be cleaned, the first cleaning agent is the acidic cleaning agent, the glass to be cleaned can be effectively cleaned, surface impurities of the glass to be cleaned are removed, and the surface of the glass to be cleaned can be prevented from being damaged. According to the method for cleaning the glass, the surface of the optical glass cannot bedamaged, secondary use of the optical glass cannot be influenced, and the service life of the optical glass can be prolonged.