28results about How to "Improve direction" patented technology

The invention discloses a city planning information display method and system based on digital twinning, and relates to the technical field of city planning. Static data and dynamic data of a city are collected, a three-dimensional model of the city is constructed through the static data, and the dynamic data and the three-dimensional model are combined to construct a digital twinning model of the city; the method comprises the following steps: setting a random data generation pool to generate random data, importing the random data into a digital twinborn model, and monitoring and optimizing a chaos current situation in the digital twinborn model to obtain an optimization scheme; by constructing a public voting platform, public opinions are imported into city planning to obtain a final optimization scheme; according to the method, the digital twinborn model of the city is constructed, more random scenes are provided for city planning by using the random data generation pool, potential changes and uncertainty of the city are fully simulated, and in combination with public opinions, the perspectiveness and flexibility of the digital twinborn technology in the city planning are improved, and a new direction is brought to the city planning.

The present invention relates to the technical field of plastic drain board processing, and specifically to a plastic drain board processing melting device, comprising a frame; an extrusion assembly, which is arranged on one side of the top end of the frame, and the extrusion assembly is used to extrude plastic raw materials; a hot melt assembly, which is arranged on the outer surface of the extrusion tube, and the hot melt assembly is used to heat the extrusion assembly; a suction assembly, which is arranged at the top end of the heating cavity, and the suction assembly is used to absorb excess heat in the hot melt assembly or clean up dust in the hot melt assembly. Compared with the prior art, the present application provides an air inlet cavity in the hot melt assembly, and the design of the vertical plate, the first guide plate, the second guide plate and the third guide plate inside the air inlet cavity helps to guide the air to flow along a specific path, helps to ensure that the plastic raw materials are evenly heated during the extrusion process, and this uniform heating effect helps to improve the extrusion efficiency and ensure the smoothness and uniformity of the surface of the molded product.

The invention relates to a femtosecond laser-assisted chemical ionization method for mass spectrometry of organic molecules. According to the method, high-concentration primary reagent ions are provided for subsequent chemical ionization by femtosecond laser ionization; high-concentration charges carried by primary reagent ions are transferred to a low-concentration to-be-analyzed sample by chemical ionization, the ionization volume of femtosecond laser ionization is equivalently enlarged, and meanwhile, the soft ionization characteristic of two ionization methods is maintained, so that the high-concentration to-be-analyzed sample can be analyzed under the condition of an open or closed air chamber. And carrying out ultrahigh-sensitivity mass spectrometry on the to-be-analyzed sample. The method is combined with a desorption technology or a liquid sample gas distribution device, and can be expanded to analysis of gas, solid and liquid samples; the device is compatible with wide air pressure conditions and can be applied to closed air chamber or open detection environment; the universality and soft ionization characteristics of femtosecond laser ionization and chemical ionization are reserved, and an ionization method with universality and ultrahigh sensitivity is provided for mass spectrometric detection of organic molecules.

The application provides a special-shaped part surface size defect detection device, and belongs to the technical field of industry detection. The device comprises a mounting mechanism, including a base, a motorized telescopic rod is arranged on one side of the base, a telescopic end is arranged on one end of the motorized telescopic rod, a lifting frame is fixed on one end of the telescopic end, and a detector is arranged on one side of the lifting frame. The motorized telescopic rod and the rotating connection support supported by the swing rod and the support frame can realize convenient adjustment of the detector on the clamping frame in terms of height, direction and position, and can conveniently adjust the direction of the detector during the surface detection of the special-shaped part, so that the problem that the detection efficiency is affected due to multiple positioning, calibration and adjustment is avoided. The camera can capture and detect the image of the special-shaped part surface, and can image the surface crack of the special-shaped part, so as to effectively ensure the efficiency and accuracy of the surface defect detection of the special-shaped part.

The utility model discloses a broadband bridge, which comprises a first input port, a first output port, an isolation output port, a coupling output port, a front-stage coupling branch knot, an intermediate-stage coupling branch knot, a final-stage coupling branch knot, a dielectric layer and a metal layer, the metal layer is provided with a gold bonding wire, a microwave input transmission branch, a first microwave output transmission branch, a second microwave output transmission branch, an isolation port output branch and two independent microstrip lines. Three-stage coupling is adopted, namely, the front-stage coupling branch knot is connected and coupled with the last-stage coupling branch knot through the microstrip line, and the middle-stage coupling branch knot is connected and coupled with the independent microstrip line six-line through the gold bonding wire, so that the requirements of broadband 6-18GHz and low insertion loss are met, the standing wave characteristic is improved, the isolation degree and the direction are good and are both smaller than-20dB, and the isolation degree and the direction are smaller than-20dB. And moreover, good amplitude-phase consistency is achieved, the amplitude is 3dB + / -0.3, the phase is 91 degrees + / -5 degrees, and the overall performance is improved.

The utility model discloses an inlaid ornament and ring, the ring comprises a ring body, the inlaid ornament is arranged on the ring body, the inlaid ornament comprises a main inlaying opening structure and a main diamond inlaid in the main inlaying opening structure, the main inlaying opening structure comprises a main inlaying seat and at least two limiting claws, and the limiting claws are arranged on the main inlaying seat. A cavity is formed in the main inlaying base, supporting parts are arranged on the two sides of the upper portion of the main inlaying base and make point contact with the pavilion portion of the main diamond, a gap is formed between the main diamond and the cavity, and the limiting claw is used for limiting the waist and the crown of the main diamond. A gap is formed between the inner side of the limiting claw and the main diamond, and the supporting part is matched with the limiting claw so that the main diamond can shake around two contact points. The diamond provided by the utility model can slightly shake around the connecting line between the two contact points, so that the main diamond is more shiny, and the dynamic visual effect of the ring is greatly improved.

The utility model discloses an anti-vibration capacitance tester, which comprises a capacitance tester body, test interfaces and an anti-vibration protective shell, the anti-vibration protective shell is sleeved on the surface of the capacitance tester body, the test interfaces are arranged on two sides of the front surface of the capacitance tester body, and first anti-vibration sheets are arranged on two sides of the top and the bottom of the inner wall of the anti-vibration protective shell. According to the utility model, the first anti-seismic sheet is arranged, the first anti-seismic sheet and the anti-seismic air bag are used for further buffering and seismic resistance, so that the anti-seismic strength is further improved, the first anti-seismic sheet is used for seismic resistance in the up-down direction, and the anti-seismic air bag acts on seismic resistance in the left-right direction; the problems that the use effect of the tester is reduced and the test result is influenced when the tester is subjected to external vibration or impact due to low overall vibration resistance caused by the fact that only one single anti-vibration insulation case is arranged on the surface of the tester in a sleeving manner for vibration resistance are solved, and the effect of assisting vibration is achieved.

The utility model discloses a self-adaptive energy-saving street lamp, and relates to the technical field of street lamps. The LED lamp comprises a lamp pole, a lamp body and a control box, the lamp body is installed on the top of the lamp pole, the lamp body is connected with the lamp pole through a spherical connector, a wire channel is formed in the spherical connector, a power line of the lamp body penetrates through the channel to be connected with the control box arranged at the bottom of the lamp pole, and a power module and a control module are arranged in the control box. The control module is connected with an ambient light sensor located on the outer side of the lower portion of the lamp pole, the power module is connected with an external power supply circuit through a cable, and the control module is connected in series in a connecting circuit of the power module and the lamp. According to the utility model, through integrating the ambient light sensor and the control module, the brightness of the lamp can be automatically adjusted according to the illuminance of the ambient environment, so that unnecessary energy consumption is avoided, and a remarkable energy-saving effect is achieved; the lamp is installed at the top of the lamp pole through the spherical connector, and the angle of the lamp can be flexibly adjusted according to actual needs.

This invention discloses a sugar-vinegar liquor for controlling the tea geometrid moth and its preparation process, belonging to the field of green pest control technology for tea gardens. It addresses the problems of existing sugar-vinegar liquors for controlling the tea geometrid moth, such as weak targeting, short-lasting effect, incomplete control, imperfect formulation and application process, and unreasonable cost control. The method includes the following steps: weighing sugar, vinegar, liquor, and water according to the volume ratio of the basic components; adding sugar to water and stirring until completely dissolved to obtain a sugar-water solution; adding vinegar and liquor sequentially to the sugar-water solution and stirring evenly to obtain a basic sugar-vinegar liquor; sequentially adding a targeted attractant, a long-acting slow-release factor, and an environmentally friendly killing factor to the basic sugar-vinegar liquor, stirring for 10-15 minutes after each addition to ensure thorough mixing, resulting in a sugar-vinegar liquor for controlling the tea geometrid moth. This invention significantly improves the trapping specificity and efficiency by optimizing the basic ratio, selecting targeted raw materials, and adding a tea geometrid moth-specific targeted attractant.

The utility model relates to the technical field of electric dust removers, in particular to a wet-type electric dust remover. According to the technical scheme, the wet-type electric dust remover comprises a connector, a shell, an electrode assembly and a sleeve, the electrode assembly is installed in the shell, a through hole is formed in the shell, a baffle is installed at the position, located at the through hole, of the interior of the shell through a torsional spring, the sleeve is installed at the position, located on the outer side of the through hole, of the shell, the connector is installed in the sleeve, and the connector is fixedly connected with the shell. A pressing plate is arranged on the connector, the connector is elastically installed in the sleeve through the pressing plate and a spring, and a spray head is installed at the tail end of the sleeve. By optimizing the layout, increasing the capturing surface area, preventing pollution, improving the stability, optimizing the water spraying system and the like, the performance and the reliability of the dust remover are effectively improved, and the dust control requirements in various industrial environments are met.

The utility model relates to the technical field of display screen production, in particular to an anti-collision transfer device for display screen production, which comprises a placing box and a fixing device, a cavity without an upper side wall is arranged in the placing box, the fixing device comprises a two-way conveying rod, a conveying block and a clamping plate, a motor is arranged at the lower end of the side wall of the placing box, and the two-way conveying rod is connected with the conveying block. The two-way conveying rod is provided with a right-hand thread and a left-hand thread, a limiting plate is arranged in the containing box, a through hole is formed in the limiting plate, a connecting rod is arranged on the upper side wall of the conveying block, a clamping plate is arranged at the upper end of the connecting rod, and symmetrical mounting channels are arranged at the two ends of the front side wall of the clamping plate. Mounting blocks are arranged in the mounting channels, and air bags are arranged between the mounting blocks, so that the display screen is prevented from sliding in the transportation process, the impact force of the display screen in the transportation process is effectively reduced, the air bags are conveniently replaced, the poor protection effect caused by damage of the air bags is prevented, and the transportation efficiency and safety are improved.

The invention relates to the technical field of oral medical auxiliary instruments, in particular to a multifunctional drag hook assembly which comprises two drag hooks which are the same in structure and are in bilateral symmetry. The drag hook comprises a hook part and a handle part which are integrated, the hook part comprises a mucous membrane flap hook part and a mouth corner hook part which are integrated, and the mouth corner hook part is connected with the handle part; a protruding piece and a supporting and positioning piece connected with the protruding piece are arranged at the end of the side face, away from the oral corner hook part, of the mucous membrane flap hook part. The protruding piece comprises a plurality of continuously-arranged protrusions, the connecting positions of the sides, away from the mucous membrane flap hook part, of the adjacent protrusions are in fillet transition, and the sides, away from the mucous membrane flap hook part, of the protrusions are arranged in a fillet mode. The supporting and positioning piece is a protrusion with a rectangular section, a first scale mark is arranged on the supporting and positioning piece in the length direction of the supporting and positioning piece, and a second scale mark is arranged on the supporting and positioning piece in the height direction of the supporting and positioning piece. According to the multifunctional retractor assembly, the comfort degree of a patient in the operation process is improved, and meanwhile the operation accuracy of medical staff can be improved.

The utility model discloses a double faced adhesive tape splicing structure for attaching a touch screen to a machine shell, which comprises the machine shell, the machine shell is adhered to one end of a first double faced adhesive tape, one end of a second double faced adhesive tape, one end of a third double faced adhesive tape and one end of a fourth double faced adhesive tape, and the other end of the first double faced adhesive tape, the other end of the second double faced adhesive tape, the other end of the third double faced adhesive tape and the other end of the fourth double faced adhesive tape are adhered to the touch screen. The two ends of the first double-faced adhesive tape and the two ends of the third double-faced adhesive tape are respectively provided with a boss, the two ends of the second double-faced adhesive tape and the two ends of the fourth double-faced adhesive tape are respectively provided with a groove, and the bosses are matched with the grooves. Static electricity cannot directly enter a product, and ESD (Electro-Static Discharge) damage can be effectively avoided and reduced.

The utility model relates to an automatic measurement and control protection mechanism, including base and measurement and control machine main part, the top of base is connected with the box body through bolt, and the top and bottom of box body are open respectively to set up, the top of base is close to the place of four corners and is established measurement hole respectively, the inside through bolt connection of box body has the baffle, the top of baffle is connected with the protective shell through bolt, and the top and bottom of protective shell are open respectively to set up. This technical scheme through the mutual cooperation between rotating plate, connecting rod, lifting rod, pipe body and sliding plate etc. parts, makes can drive measurement and control machine main part conveniently removes or removes into protective shell, thereby makes it can use, further makes it not easy to cause dust etc. to cause the pollution of measurement and control machine main part when using, improved its protection efficiency and anti -pollution efficiency, and can conveniently adjust the direction and angle when removing protective shell, thereby makes it can use and control conveniently, improved its work efficiency.

The utility model discloses a multidirectional mould opening powder metallurgy mould, which is characterized in that the multidirectional mould opening powder metallurgy mould comprises a bottom plate, a first side plate, a second side plate and a transmission mechanism, a transmission cavity is arranged in the bottom plate, the bottom plate comprises a first edge part and a second edge part which are opposite to each other, the transmission cavity respectively penetrates through the first edge part and the second edge part, and the transmission mechanism is arranged in the transmission cavity. The first side plate is arranged on the first edge portion, the second side plate is arranged on the second edge portion, and the transmission mechanism is installed in the transmission cavity and used for simultaneously driving the first side plate and the second side plate to be close to or away from each other oppositely. The first side plate and the second side plate can be driven by the transmission mechanism to be close to and far away from the bottom plate at the same time, the mold opening direction is increased, a pressed mold is subjected to mold opening treatment at the same time in multiple directions, and the mold opening difficulty of mold adhesion is reduced.

The utility model relates to an adjustable auxiliary device for vocal music training, which comprises a base, a rotating mechanism is arranged on the base, a supporting rod is arranged on the rotating mechanism, a first placing plate is fixed on the upper surface of the supporting rod, and a fixing mechanism is arranged on the first placing plate; the fixing mechanism comprises two mounting bases fixed to the upper end and the lower end of the back face of the first containing plate, a first motor is fixed to the right side of the mounting base at the upper end, a first rotating rod is fixed to an output shaft of the first motor, and two first worm sleeves are fixed to the outer surface of the first rotating rod; the fixing mechanism further comprises two second rotating rods rotationally connected between the opposite sides of the two mounting bases. According to the adjustable auxiliary device for vocal music training, through cooperation of the fixing mechanism and the rotating mechanism, the situation that when the length or size of a music score is large, the music score cannot be flatly laid completely, and the training effect is affected is avoided, meanwhile, the direction of equipment can be conveniently adjusted, and people in different directions can use and operate the equipment conveniently.

The utility model discloses a multi-view eye-protection ultrasonic detector which comprises a detector body, an operating device is arranged at the top of the detector body, a first imaging device is arranged at the top of the operating device, an eye-protection device is arranged on the first imaging device, a second imaging device is movably arranged on one side of the first imaging device, and the second imaging device is arranged on the other side of the first imaging device. And the first imaging device and the second imaging device face different directions and are used for facing different persons to observe. By arranging the far image light screen, visual fatigue caused by long-time use of the screen by medical staff can be relieved, the vision of the medical staff is protected, and then the medical staff can accurately diagnose; by arranging the second imaging device, compared with a display screen of an existing ultrasonic detector, the display direction and range are enlarged, a patient or a medical student can conveniently observe an ultrasonic image, the doctor-seeing experience of the patient is improved, and teaching is facilitated.

A magnesium aluminum alcoholate nanowire and its preparation method and application. The present invention belongs to the field of nano functional materials. The present invention aims at the technical problems that the current preparation methods of metal nanowires have harsh reaction conditions, complicated preparation steps and difficult operation. The method of the present invention is as follows: Mg-Al-Li alloy is cut into blocks, added to anhydrous isopropanol, and heated at a constant temperature of 65-75°C for 22-24h. The present invention uses Mg-Al-Li alloy as a reaction substrate, and Mg-Al reacts to form Mg 17 Al 12 The electronic effect between metals accelerates the transfer of electrons. In addition, there is a geometric effect between magnesium and aluminum alloys, which can form new active sites at the two-phase interface between magnesium and aluminum metals, thereby significantly improving the reaction efficiency and shortening the reaction time. Magnesium isopropoxide and aluminum nanowires with high aspect ratios are efficiently synthesized at room temperature or lower temperatures, broadening the direction of preparing metal alcohol oxide nanowires.

This invention discloses a compound, its preparation method, and its applications, with the molecular formula C0. 49 H 70 Mo9N7O 33 P, preparation method, firstly, H3PMo 12 O 40 • 13H₂O was dissolved in ultrapure water and stirred until completely dissolved. Then, 3-ethylpyridine solution was added to the above solution using a pipette. After stirring, the mixture was immediately transferred to a sealed stainless steel high-pressure reactor lined with polytetrafluoroethylene. The temperature was raised to 160°C and maintained for crystallization for 3 days. Afterward, the power was turned off and the reactor was slowly cooled to room temperature. The residue was filtered out, and the reactor was sealed and allowed to stand to obtain green blocky crystals. This can be used as a material for adsorbing organic dyes.

The utility model provides a commercial kitchen fireproof range hood, which relates to the technical field of range hoods and comprises a range hood body, a smoke exhaust pipe is fixed on the range hood body, a fireproof component is arranged on the range hood body and comprises a dry powder extinguisher, and the output end of the dry powder extinguisher is fixedly connected with a pipeline. When a fire occurs in the commercial kitchen, the glass tube is fixed in the second stop block, organic solutions with different expansion coefficients are contained in the glass tube, the glass tube is broken after the organic solutions are subjected to thermal expansion at different temperatures, and after the glass tube is broken, the spraying head is fixed to the end, away from the dry powder fire extinguisher, of the glass tube, and the spraying head is fixed to the bottom of the hollow tube. The first stop block descends due to gravity, so that dry powder in the dry powder fire extinguisher enters the hollow pipe through the pipeline and is sprayed out from the through hole formed in the spraying head, flame is completely extinguished through the dry powder, and the technical problem that automatic fire extinguishment cannot be achieved when a fire occurs in a commercial kitchen is solved.

The invention provides a plate heat exchanger for chemical production. The plate heat exchanger for chemical production comprises a first lateral plate, a supporting frame rod is fixedly connected to the interior of the first lateral plate, a second lateral plate is arranged on the outer surface of the supporting frame rod, and a plurality of second heat exchange plates and first heat exchange plates are arranged on the outer side of the supporting frame rod; a second gasket structure is arranged on the first heat exchange plate, a first gasket structure and an air blowing device are arranged on the second heat exchange plate, the air blowing device comprises a middle pipeline, a lateral supporting frame, a lateral pipeline and an exhaust pipe, and the side surface of the middle pipeline is fixedly connected with the air blowing device. According to the plate type heat exchanger for chemical production, the design of the trapezoidal heat exchange plates can enhance the turbulence effect when liquid flows, turbulence is beneficial to improving the heat exchange effect, the scaling possibility can be reduced, and therefore the service life of equipment is prolonged, and heat transfer can be conducted more effectively by increasing the movement complexity of fluid.

The application is suitable for the technical field of electromagnetic simulation calculation, and provides a multi-radiation-source space electromagnetic field solving method and a terminal based on space structure reconstruction. The method comprises the following steps: analyzing a grid model of a three-dimensional electromagnetic propagation scene and converting the grid model into a triangular facet element set used for electromagnetic ray tracing; generating a one-dimensional triangular facet element sequence of the triangular facet element set according to the Morton coding of the center vector of each triangular facet element; clustering the triangular facet elements according to the geometric connection relationship between the triangular facet elements and reconstructing the order of the triangular facet elements in each cluster; constructing a BVH scene tree according to the reconstructed triangular facet element sequence, determining the triangular facet elements intersecting with the electromagnetic rays in the grid model according to the BVH scene tree, eliminating the triangular facet elements not intersecting with the electromagnetic rays, and determining the propagation path of the electromagnetic rays in the grid model and the electromagnetic field distribution. The application is more in line with the electromagnetic propagation direction characteristics, optimizes the traversal path, improves the traversal efficiency, and shortens the calculation time.

The present invention relates to the field of earthquake early warning technology, and in particular to an emergency earthquake information reception, processing and publishing service management system, comprising an earthquake monitoring station, a data processing center, an information publishing platform and a receiving terminal; the data processing center pushes earthquake information including earthquake rapid report information, earthquake intensity rapid report information and disaster assessment information and corresponding call information to the receiving terminal; the earthquake monitoring station collects data, the data processing center analyzes and selects the call information, and calculates whether the sending of the call information exceeds the signal carrying capacity of the information publishing platform; if so, some receiving terminals are selected as information forwarding platforms; the call information and the geographical range are sent to the information forwarding platform through the information publishing platform; the information forwarding platform forwards to the remaining receiving terminals; the present invention calculates the carrying capacity of the information publishing platform, and if it exceeds, some receiving terminals are converted into information forwarding platforms, and can realize multi-mode and multi-directional transmission according to grid division combined with the interaction between the receiving terminals.

The speckle eliminating mechanism comprises a bearing seat, a dodging assembly, an outer frame, a first elastic part and a first actuator. The dodging assembly is provided with a light receiving surface and is arranged on the bearing seat. The outer frame is arranged adjacent to the bearing seat. And the first elastic part is the only part for connecting the bearing seat and the outer frame. The first actuator comprises a first part and a second part which act relatively, and the first part is arranged on the bearing seat. The first actuator can drive the dodging assembly, and the connection position of the first elastic machine part and the outer frame serves as a fulcrum, so that the dodging assembly swings in the plane direction parallel to or the same as the light receiving face of the dodging assembly. The speckle eliminating mechanism can simplify the structure, and is convenient to assemble, position and adjust the vibration path and direction of the moving part.

The utility model relates to the technical field of cooling fans, and provides a high-pressure cooling fan with an adjustable stationary blade angle. The high-pressure cooling fan with the fixed blade angle adjustable comprises a movable blade which is configured to rotate to generate air flow; the fixed impeller comprises a fixed impeller hub and a plurality of fixed blades arranged on the outer circumferential face of the fixed impeller hub, the fixed blades are configured to guide airflow, and the angle of the fixed impeller hub and / or the angle of the fixed blades are / is adjustable. Compared with a traditional high-pressure cooling fan, the high-pressure cooling fan is higher in adaptability, the angle of the stationary blade can be adjusted according to different working environments and requirements, the direction and speed of airflow can be optimized, the cooling effect is improved, meanwhile, use is convenient, and the angle of the stationary blade can be adjusted in multiple modes.

The utility model discloses a cage trolley handle and an article transfer device. The cage trolley handle comprises a handle part, a pull rod and a pull ring structure, the handle part is used for being held by a user, the pull rod extends in the first direction, the pull ring structure comprises an arc-shaped fixing hook part, one end of the pull rod is connected with the handle part, and the other end of the pull rod is connected with the fixing hook part. And the fixed hooking piece can be hooked into the through hole or the protruding structure of the cage trolley in the second direction, so that the fixed hooking piece and part of the structure of the cage trolley can be limited in the first direction. The pull ring structure of the cage trolley handle can be hooked into the through hole or the protruding structure of the cage trolley, limiting can be formed in the first direction, when a user holds the handle piece and pulls the cage trolley in the extending direction of the pull rod, the pull ring structure is not prone to being separated from the cage trolley, the cage trolley handle is used for pulling the cage trolley, use is convenient, and the use effect is good. And the direction of the cage trolley is convenient to control. In addition, the cage trolley handle is simple in structure and can be quickly assembled and disassembled with the cage trolley.

The utility model discloses a divided-flow type conveying device which comprises a divided-flow type conveying machine body, a guide groove is formed in the upper portion of the divided-flow type conveying machine body, a buffering groove is formed in the upper portion of the guide groove, a feeding port is formed in the top of the buffering groove, a divided-flow groove is formed in the lower portion of the divided-flow type conveying machine body, and a discharging port is formed in the lower portion of the divided-flow type conveying machine body. And the cross section of the flow dividing groove is of a circular structure, a shared rotating shaft is arranged in the middle of the interior of the flow dividing groove, and the bottom end of the shared rotating shaft is connected with a motor. The cross section of the diversion groove is of the circular structure, the four diversion openings are formed in the outer edge of the ground of the diversion groove, the area of the diversion groove can be more conveniently and evenly distributed through the circular structure, the distances among the four diversion openings are the same, the area is the same, materials are fewer, the four diversion openings are arranged, and the service life of the diversion groove is prolonged. And the flow dividing direction can be increased, meanwhile, the flow dividing speed is increased, and different use requirements are met.

The utility model discloses a purging device and a perovskite line evaporator, the purging device comprises: a first purging assembly, the first purging assembly comprises a first purging pipe, both ends of the first purging pipe are connected with a feeding port, and the first purging pipe is provided with a plurality of first purging holes; the second purging assembly comprises a second purging pipe, the two ends of the second purging pipe are connected with a feeding port of the perovskite line evaporation machine, and a plurality of second purging holes are formed in the second purging pipe; the first purging hole and the second purging hole face away from the feeding cavity, and the absolute value of the included angle between the vertical normal vector of the first purging hole and the second purging hole and the plane of the feeding base plate is (0 degree, 90 degrees). According to the utility model, the substrate which is about to enter the feeding chamber is blown from the two sides of the feeding port, so that the substrate can be effectively and comprehensively cleaned in the feeding process, impurities such as dust and particles on the surface of the substrate are removed, and the cleanliness of evaporation and the product quality are improved.