193results about How to "Control flow rate" patented technology

The invention discloses an in-reactor fuel irradiation test loop based on the working condition of a pressurized water reactor. The in-reactor fuel irradiation test loop comprises a main circulation system, a purification system, a fission substance release monitoring system, a water supplementing system, an emergency cooling system, a cooling water system, an in-reactor device pressure failure online monitoring system, a reactor shutdown protection system, a thermal parameter measurement system, a power supply system and an air ventilation and exhaust system. According to the loop, a pressurized water reactor working condition environment is realized, and various technical indexes such as temperature, pressure, flow velocity and water quality required by fuel test are ensured to be reached; the safety level of each system is reasonably configured, so that the requirements of laws and regulations are met, and the safety performance of the loop is improved; by reasonably arranging a multi-stage cooling water system, an air exhaust system and the like, the radioactive activity of an exhaust flow is reduced, the environmental safety is ensured, the release of radioactive aerosol in a process is eliminated, the exposure dose of workers is reduced, the safety of the workers is ensured, the safety risk of devices in the reactor to the reactor under the working condition of a fracture accident is eliminated, and the reliability of the system is improved.

The invention discloses rainwater garden recycling equipment with a purification function, and relates to the technical field of rainwater purification, the recycling equipment comprises a natural filter tank, a collection mechanism, an anti-accumulation mechanism, an angle adjusting mechanism and a water treatment mechanism, the natural filter tank is provided with the anti-accumulation mechanism, the natural filter tank is internally provided with the angle adjusting mechanism, and the angle adjusting mechanism is provided with the water treatment mechanism; the collecting mechanism is connected with the accumulation preventing mechanism, the angle adjusting mechanism is connected with the water treatment mechanism, the water treatment mechanism treats filtered rainwater again, the accumulation preventing mechanism is used for preventing rainwater impurities from being accumulated at one position, and the natural filtering tank is of a tank-shaped structure arranged on the ground. The natural filter tank comprises a water storage layer, a covering layer, a planting soil layer, a sand layer and a gravel layer from top to bottom, and the surface of the natural filter tank is covered with vegetation.

The invention discloses a furan distillation and purification device for tetrahydrofuran raw materials, which comprises a distillation box, a preheating channel, a distillate flow guide assembly and a multi-stage filter assembly, and the multi-stage filter assembly comprises a first ultrafiltration membrane treatment mechanism, a second ion exchange resin treatment mechanism and a third molecular sieve treatment mechanism. The upper part of the feeding end of the distillation box is connected with a preheating channel, and inner inclined plates are arranged at the bottom of the distillation box and below the preheating channel. According to the furan distillation and purification device for the tetrahydrofuran raw material, when an existing furan distillation and purification device is used for treating a furan solution, although part of impurities can be removed, the purification effect is not thorough, and impurity residues still exist; meanwhile, the device is high in energy consumption in the distillation and extraction process and needs to depend on the combined use of a plurality of devices, so that the operation complexity is increased, the large loss is caused in the material conveying process, and the overall purification efficiency and the product quality are influenced.

The invention discloses a nerve block anesthesia injection pressure measurement alarm device which comprises an injection needle cylinder used for injecting anesthesia and an alarm body used for alarming, a sealing piston is slidably installed in the injection needle cylinder, and a push rod is fixedly installed on the side face of the sealing piston. A liquid crystal display screen used for displaying the working state is fixedly installed on the front side of the alarm body, an indicator light which is turned on according to the situation is arranged above the liquid crystal display screen, and control keys used for adjusting parameters are arranged below the liquid crystal display screen. According to the pressure measurement alarm device for nerve block anesthesia injection, when the injection needle cylinder is used for injecting anesthesia, the injection pressure condition is monitored in real time through the pressure sensor installed at the front end of the injection needle cylinder, when the pressure is increased, the blocking condition appears, and at the moment, the signal transmission line transmits a signal to the alarm body; alarm (sound and light) is given out through an indicator light and a loudspeaker in the alarm body.

The utility model provides a tool for casting a high-grade iron casting by adopting resin sand and iron mold coated sand, which relates to the technical field of casting molds and comprises an upper sand box, a grid is fixedly connected to the top end of the upper sand box, a lower sand box is arranged below the upper sand box, heat dissipation holes are formed in the surface of the lower sand box, and the heat dissipation holes are communicated with the grid. Connecting lug plates are fixedly connected to the two sides of the upper sand box, through the arrangement of heat dissipation holes in the lower sand box, the heat dissipation effect of a casting in a resin sand mold is improved, cooling and curing of an iron solution can be accelerated, refining of an internal structure (forming of a globular body structure) in the cooling and curing process can be accelerated, and therefore the casting with the strength of HT300 or higher is obtained, and through the arrangement of the lower sand box, the heat dissipation effect of the casting in the resin sand mold is improved. The bottom plate with the thickness of 30mm can improve the rigidity and the strength of the lower mold, reduce deformation and ensure the dimensional accuracy and the shape stability of the casting, the thicker lower mold can better absorb and conduct heat, the cooling speed of the casting is favorably controlled, a casting system realizes a dead head-free design, the process yield is improved to 90%, and the cost is further reduced.

The invention relates to a movable offshore oilfield injection water quality online monitoring device, and relates to the technical field of water quality monitoring. The system comprises a mobile platform, an oil detection module, a total iron detection module, a sulfide detection module, a water quality detection module, a water quality treatment module, a cleaning module and a sampling module which are arranged on the mobile platform, and a detection branch pipe arranged on the oil detection module, the water quality detection module comprises a PH detector, a corrosion rate detector, a dissolved oxygen detector, a suspended matter detector and a buffer tank which are arranged on the mobile platform, and the oil detection module, the PH detector, the corrosion rate detector, the dissolved oxygen detector, the suspended matter detector and the buffer tank are all communicated with a detection branch pipe; and two water control pieces are arranged on the detection branch pipe. According to the application, each detector can detect the water quality in the optimal detection period, each detector can detect the water quality at the same time, and the accuracy and timeliness of each data can be ensured in different detection periods according to the characteristics of each parameter.

The utility model discloses an air outlet adjusting structure of a data center cold channel, and relates to the technical field of data centers. The ventilation device comprises a mounting plate, wherein the top of the mounting plate is fixedly connected with a ventilation pipeline; a ventilation assembly is arranged in the ventilation pipeline, the ventilation assembly comprises turbulent flow slowing plates, the turbulent flow slowing plates are fixed to the top and the bottom of an inner cavity of the ventilation pipeline, a motor is fixedly connected to one side of the top of the ventilation pipeline, and a control piece is arranged at the output end of the motor; an adjusting assembly is arranged on one side in the ventilation pipeline, and the air outlet direction can be controlled through the adjusting assembly. The transmission rod can be driven to rotate through work of the motor, then the baffle is driven to transmit, the purpose of controlling the air velocity is achieved, the sliding plate can be driven to move through pushing of the air cylinder, then the connecting plate is driven to move, the adjusting plate is driven to rotate, and cold air can be evenly blown to a server in cooperation with the turbulent flow slowing-down plate.

The invention relates to the field of premixing devices, in particular to a premixing device for anti-corrosion spraying materials, which comprises a feeding mechanism for conveying and heating spraying raw materials; the premixing mechanism is used for expected mixing of spraying raw materials, and the supporting frame is fixedly connected to the outer side of the premixing mechanism; the stirring mechanism is used for performing formal stirring treatment on the spraying raw materials; the standing mechanism is used for carrying out standing defoaming on the mixed spraying material; according to the premixing device for the anti-corrosion spraying material, two different spraying raw materials oppositely impact on a double-head net, at the moment, part of the spraying raw materials penetrate through holes in the double-head net, impact together and then enter a hollow table, and finally the spraying raw materials are discharged downwards through an outlet pipe. And at the moment, the preliminary premixing treatment effect on the two spraying raw materials is achieved.

The invention discloses an acrylic ester composite emulsion condensation device, and relates to the technical field of acrylic ester composite emulsions.The acrylic ester composite emulsion condensation device comprises a supporting plate, and a stirring barrel is arranged on the supporting plate; a lifting structure is arranged on the supporting plate; a worker pours a part of pre-emulsion and a part of an initiator into a stirring barrel, materials in the stirring barrel are polymerized through cooperation of a motor, a first gear, a second gear and a stirrer, then the remaining materials are placed into a placing box through a feeding structure, the rotating placing box enables a baffle to move under the action of centrifugal force, and then the materials in the stirring barrel are polymerized. A material in a material barrel in the placing box flows into a spraying pipe through a discharging pipe and uniformly falls into a stirring barrel through the spraying pipe for efficient mixing, meanwhile, the rotating speed of the placing box enables a baffle to move to different positions, the moving positions of the baffle are different, and the inflow amount of the material in the discharging pipe is different; therefore, the flow rate of the material is controlled.

The pot cover assembly comprises a lining cover, a top face cover located above the lining cover and a side face cover surrounding the periphery of the lining cover, the top face cover and the lining cover are of an integrally-formed structure, a fixing buckle is arranged on the inner circumferential face of the side face cover, a matched buckle matched with the fixing buckle is arranged on the circumferential side of the lining cover, and the side face of the lining cover is provided with a matched buckle matched with the matched buckle. And the side cover is clamped and fixed on the lining cover. According to the pot cover assembly, the top surface cover and the lining cover are integrally formed, so that the lining cover and the top surface cover can be processed at the same time through one-time processing, use of a pair of molds is reduced, the step of follow-up assembly of the top surface cover and the lining cover is omitted, meanwhile, the number of parts is reduced, the overall processing and manufacturing difficulty of the pot cover assembly is greatly reduced, and the manufacturing cost is saved. The side cover is fixedly clamped with the lining cover and is not connected with the top surface cover, so that a complicated fixing structure does not need to be arranged on the top surface cover, the smoothness of the top surface cover is improved, and the probability that flow marks appear on the top surface cover in the injection molding process can be further reduced.

The invention relates to a simulation test device and test method for oil extraction pipelines of an oil-immersed transformer, and the device comprises a thermal aging cavity, a copper electrode pair, insulation paper, an oil inlet, an oil outlet, a vacuum oil injection port, an intelligent temperature control system, a first oil extraction pipeline, a second oil extraction pipeline, a third oil extraction pipeline, an elbow, a speed-adjustable oil pump, and a three-way joint. The copper electrode pair and the insulation paper are both located in the thermal aging cavity, the insulation paper is arranged in the middle of the copper electrode pair, the oil inlet, the oil outlet and the vacuum oil injection port are all arranged outside the thermal aging cavity, the vacuum oil injection port is used for injecting insulating oil in a vacuum mode, and the intelligent temperature control system is connected with the thermal aging cavity. The oil outlet is sequentially connected with the first oil taking pipeline, the speed-adjustable oil pump, the second oil taking pipeline, the elbows, the three-way connector and the third oil taking pipeline, the third oil taking pipeline is connected with the oil outlet, circulation of insulating oil is achieved, and the number of the elbows can be changed. Compared with the prior art, the device has the advantages of being capable of simulating parameters such as the oil taking pipeline structure, the oil flow speed and the temperature of the oil-immersed transformer and analyzing the influence on the concentration of the gas dissolved in the oil and the like.

The header pipe structure comprises a first header pipe and a second header pipe which are symmetrically and vertically arranged, and a plurality of condensation pipes used for connecting and communicating the first header pipe and the second header pipe, and header pipe protection devices are arranged outside the first header pipe and the second header pipe. The collecting pipe protection device comprises a first protection device and a second protection device, the first protection device is correspondingly arranged outside the first collecting pipe, and the second protection device is correspondingly arranged outside the second collecting pipe. Multiple times of flow equalization of refrigerants are achieved, the heat exchange efficiency is improved, the flow adjusting assembly can dynamically adjust the size of a flow adjusting channel through cooperation of a flow adjusting electric cylinder and a flow adjusting conical head, the heat exchange and refrigeration effect is further improved, and a first protection device and a second protection device are arranged outside a first collecting pipe and a second collecting pipe correspondingly; and additional protection is provided.

The utility model relates to the technical field of electronic material preparation, and discloses a conductive silver paste preparation device which comprises a stirring barrel, a motor used for supplying energy is arranged at the top of the stirring barrel, a valve used for controlling the proportion is arranged at the top of the stirring barrel, a storage barrel used for storing a solvent is arranged at the top of the valve, and the motor is connected with the storage barrel. And a bracket for keeping stability is arranged at the bottom of the stirring barrel. According to the conductive silver paste preparation device, through cooperative arrangement of the stirring barrel and the motor, adhesion of silver paste in the device after preparation can be reduced during use, the influence on the re-preparation quality of the silver paste is avoided, through arrangement of the stirring barrel, the injection of silver paste raw materials can be more convenient, and meanwhile, the prepared silver paste can be taken out more quickly; and by arranging the motor, the silver paste can be stirred through rotation, so that the silver paste can be more quickly and uniformly mixed, meanwhile, the silver paste on the inner wall of the stirring barrel can be scraped, and the working efficiency of the device is improved.

The utility model relates to the technical field of mark pens, in particular to a direct flow liquid type mark pen which comprises a pen holder and a water leading core, a pen point sleeve is arranged at the front end of the pen holder, a water storage device is arranged in the middle of the pen holder, an ink bin is arranged at the rear end of the pen holder, one end of the water storage device is connected with the pen point sleeve, and the other end of the water storage device is communicated with the ink bin. A through hole in clearance fit with the ink guide core is formed in the ink storage device, one end of the ink guide core is connected with the pen point sleeve, and the other end of the ink guide core is connected with the ink storage device in a penetrating mode through the through hole. A first matching groove used for being in interference fit with the upper end of the ink guiding core and a second matching groove used for being in clearance fit with the lower end of the ink guiding core are formed in the ink storage device, the first matching groove is located above the second matching groove, and the upper end is arranged to be in interference fit, so that the ink flow is stable, and ink reverse osmosis is prevented; the lower end clearance fit guarantees smooth flowing of ink, and balance of stable ink supply and ink interruption prevention is achieved.

The utility model discloses an air conditioner pipeline buffer assembly combined structure, and relates to the technical field of air conditioner pipelines. The spiral pipe comprises a pipe body and a spiral pipe fitting arranged on one side of the pipe body, and further comprises a support plate arranged at the upper end of the spiral pipe fitting, and a connecting mechanism is arranged on the inner side of the support plate; the connecting clamping ring is arranged at one end of the pipe body; the connecting guide pipe is connected to the end, away from the spiral pipe fitting, of the pipe body. The spiral pipe fitting is designed to be of a spiral structure, meanwhile, the temperature and the flow speed of compressed air flowing at a high speed from an air compressor can be effectively controlled, Z-shaped supports are adopted in the support plate and the connecting mechanism, a multi-face bolt connecting structure is adopted, the structure is more stable, the high tension and compression resistance is achieved, and then the spiral pipe fitting is not prone to falling off. Rubber pads can also be arranged in the arranged connecting clamping rings and can be combined for bearing, on one hand, normal movement of the smooth contact face of the pipe wall is ensured, and on the other hand, a good insulation effect is provided on the premise that shock absorption is ensured.

The utility model discloses an assembly type water wave imitating permeable dam structure which comprises a dam head component, a dam body component and a dam root back plate component, the dam body component comprises a plurality of unit components which are connected end to end in the longitudinal direction, the head end of the dam body component is connected with the dam head component, and the tail end of the dam body component is connected with a dam root back plate in a closed mode; each unit component comprises an upstream face, a downstream face, a dam top portion and a dam bottom portion which are connected in a surrounding mode, the interiors of the unit components penetrate in the longitudinal direction to form a water wave simulating permeable cavity, the transverse middle of each dam bottom portion protrudes upwards to form an arch support, and the two transverse sides of each dam bottom portion extend outwards to form dam toes; the dam head component and the dam body component are each provided with a water permeable mechanism. By adopting the water-wave-imitating structural form, the water pressure generated by water flow on the dam body can be effectively reduced, and the stability of the dam body can be improved; the fabricated structure is adopted, so that the site construction operation time can be shortened, the contradiction between construction and navigation is relieved, the project quality can be improved, and fine management and green construction are achieved.

The invention relates to the technical field of gel product curing forming, in particular to curing equipment and a gel preparation device. The curing equipment provided by the invention comprises a curing tank, a buffer assembly and a partition plate, one end of the curing tank is provided with a medium inlet, and the other end is provided with a discharge port; the buffer assembly is arranged in the curing tank and is used for buffering the medium liquid entering the curing tank from the medium inlet; the partition plate is inserted into the curing groove and located between the buffering assembly and the discharging opening, and the lower end of the partition plate and the bottom wall of the curing groove are arranged at intervals. And under the action of the buffer assembly, the liquid level of the medium liquid in the curing tank is stable, and raw material forming is facilitated. The lower ends of the partition plates and the bottom wall of the curing tank are arranged at intervals, so that undercurrent is formed at the bottom of the medium liquid in the curing tank, raw materials sinking to the bottom can be driven to move in the direction of the discharging opening, and the undercurrent speed at the bottom of the medium liquid in the curing tank can be adjusted by setting the number and the positions of the partition plates; therefore, the time of the raw materials in the medium liquid is controllable.

The invention relates to the technical field of medical instruments, and provides a spinal post-operation drainage structure and a drainage method.The spinal post-operation drainage structure comprises a drainage tube body with a drainage channel, and the drainage tube body is connected with an external negative pressure drainage device; the flow velocity sensor is arranged on the drainage tube body and used for detecting the flow velocity of hydrops in the drainage channel; the temperature sensor is arranged on the drainage tube body, and the temperature sensor is used for detecting the temperature of hydrops in the drainage tube body; the control unit is arranged on the drainage tube body, and the control unit is used for controlling the flow speed of hydrops in the drainage channel or opening and closing of the drainage channel; the flow sensor is arranged on the drainage tube body, and the flow sensor is used for detecting the flow of accumulated liquid in the drainage channel. Accurate control over intermittent clamping and closing of the drainage tube can be achieved, the flow speed of effusion in the drainage tube can also be accurately controlled, the flow speed of the effusion in the drainage tube is kept to be the target flow speed, and therefore safe operation of a drainage operation is guaranteed.

According to the battery pack provided by the utility model, the flue gas treatment unit is integrated in the box body of the battery pack, and the flue gas treatment unit can be used for completely and thoroughly treating thermal runaway flue gas generated by the single batteries in the battery pack, so that hidden dangers generated after the thermal runaway flue gas is exhausted are avoided, and the use safety of the battery pack is improved. The battery pack comprises a box body, a battery module and a flue gas treatment unit, an inner cavity of the box body is divided into a battery bin and a flue gas treatment bin through a first partition plate. The battery module is arranged in the battery compartment; the flue gas treatment bin comprises a first treatment cavity and a second treatment cavity; the flue gas treatment unit comprises a liquid treatment medium and a solid treatment medium; the first treatment cavity is filled with the liquid treatment medium, and the liquid treatment medium is mainly used for treating electrolyte in battery thermal runaway flue gas; the second treatment cavity is filled with the solid treatment medium, and the solid treatment medium is used for completely treating residual gas treated by the liquid treatment medium.

The utility model relates to the technical field of deaerators, in particular to a starting heating steam pipe row for a deaerator, and aims to solve the problem that after starting steam flows in the pipe row, the uniformity of the steam in the pipe row is poor, and the starting effect of a unit is directly influenced. The device comprises a steam main pipe, a steam guide pipe, a flow distribution pipe, a pipeline support hanger and a boiling pipe, the steam main pipe is vertically arranged, the steam guide pipe and the steam main pipe are crossed, the middle parts of the steam guide pipe and the steam main pipe are communicated with each other, each end of the steam guide pipe is communicated with one flow distribution pipe, a plurality of pipeline support hangers are connected outside each flow distribution pipe, and the pipeline support hangers are used for being fixed with the inner wall of the deaerator; according to the starting heating steam pipe row, through matching of the calibers of all levels of pipelines, the steam flow speed can be controlled, vibration of equipment is reduced, noise is low, and safety and stability of the equipment are easily guaranteed.

The invention provides a centrifugal collecting device. The centrifugal collecting device comprises a driving part and a driving part, the rotor assembly is connected with the driving piece; the liquid storage part is arranged on the rotor assembly, and the liquid storage part is provided with a liquid storage cavity; the flow guide assembly comprises a flexible flow guide pipe, and one end of the flexible flow guide pipe is connected with the liquid storage part and communicates with the liquid storage cavity; the flow adjusting part is connected with the rotor assembly, a slit is formed in the flow adjusting part, and under the condition that the flexible flow guide pipe is embedded into the slit, the flexible flow guide pipe deforms; the collection assembly comprises a treatment container, a filter part and a collection container, the filter part is arranged in the treatment container and divides the treatment container into a treatment chamber and a confluence chamber, the treatment chamber is communicated with the other end of the flexible flow guide pipe, and the confluence chamber is communicated with the collection container, that is, the effective stripping of the adsorbed secretions is realized; the dosage of a buffer solution is remarkably reduced, and the concentration of effective components in a collected solution is greatly improved, so that a detection result is closer to the content of real secretions in soil.

The invention belongs to the technical field of semiconductor material preparation, and particularly relates to a system and a method for reducing the oxygen content of a Czochralski single crystal, after material melting, most gas in a single crystal furnace is distributed into a gas collecting cavity through a gas inlet part, the gas in the gas collecting cavity can be exhausted through a gas exhaust part, and the oxygen content of the Czochralski single crystal is reduced through a quartz gas exhaust system. The flow-out speed of gas in the single crystal furnace can be effectively controlled, so that the volatilization rate of Oi is controlled, the exhaust capacity of a vacuum pump is improved, more volatile O elements can be taken away, the O elements are prevented from flowing into the front edge of a solid-liquid interface, finally, the O content is reduced, the oxygen content in a single crystal silicon rod is stably controlled to be lower than 5 ppma, and the oxygen content of the single crystal silicon rod is reduced while the O content is controlled. When the gas collection cavity collects gas, radiant heat absorbed by the surface of the upper half part of the heat insulation assembly and heat brought by fluid flowing can be taken away through gas flowing, a more excellent temperature field is provided, and therefore nucleation and growth of defects in a crystal bar are controlled.

The present invention discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit includes a casing, a fan, a heat exchanger, a vortex ring generator and a door assembly. The casing has an inner cavity, an air inlet connected to the inner cavity and an air outlet connected to the inner cavity. The fan is installed in the inner cavity, the heat exchanger is installed in the inner cavity, the vortex ring generator is installed in the casing, and the door assembly is installed in the casing and located at the front end of the vortex ring generator, wherein the door assembly can be opened and closed to adjust the size of the vortex ring generator blowing. In the air conditioner indoor unit disclosed by the present invention, air passes through the vortex ring generating device to form a vortex ring airflow, which can effectively expand the air supply range and air supply distance of the air conditioner indoor unit, reduce energy consumption, and provide a good blowing experience. In addition, by setting the door assembly, the door assembly can be opened and closed to adjust the size of the vortex ring generator blowing, so that the flow rate and flow rate of the blown gas can be controlled to obtain different blowing experiences.

The invention discloses a discharge hopper with a flow velocity controllable function for a concrete mixing plant, and relates to the technical field of concrete mixing plants, in particular to the discharge hopper with the flow velocity controllable function for the concrete mixing plant, which comprises a bracket, a discharge hopper assembly is mounted on the inner wall of the bracket, and a telescopic pipe assembly is mounted at the bottom of the discharge hopper assembly. A flow speed control assembly is installed on the outer wall of the telescopic pipe assembly, and a cleaning assembly is installed at the top of the support. The telescopic pipe assembly comprises a first discharging pipe, and a second discharging pipe is installed on the outer wall of the first discharging pipe in a sliding mode. According to the discharging hopper with the flow speed controllable function for the concrete mixing plant, when the discharging hopper is used, the height of a discharging pipe of the discharging hopper can be adjusted according to the height of a feeding hopper of a concrete transport vehicle, discharging can be stably carried out on the concrete transport vehicles of different models, meanwhile, the inner wall of the discharging hopper can be automatically cleaned, and the working efficiency is improved. And the use convenience of the discharging hopper is improved.

The utility model relates to the technical field of test equipment, and discloses an outdoor photovoltaic illumination waterproof performance simulation tester, which comprises a detection box, an installation box is fixedly connected to the left side in the detection box, a first electric push rod is fixedly connected to the left side in the installation box, and a trapezoidal block is fixedly connected to the right side of the first electric push rod. The device comprises a trapezoidal block, wedge blocks are fixedly connected to the front side and the rear side of the trapezoidal block, movable blocks are slidably connected to the front side and the rear side of the trapezoidal block, wedge grooves are formed in the opposite sides of the two movable blocks, clamping blocks are fixedly connected to the right sides of the two movable blocks, and limiting blocks are fixedly connected to the upper sides and the lower sides of the two movable blocks. According to the utility model, when the trapezoidal block moves, the wedge blocks at the front side and the rear side of the trapezoidal block can slide in the wedge grooves formed in the movable blocks, so that the movable blocks move, the two movable blocks drive the clamping blocks to move, and the two clamping blocks move bidirectionally, so that the outdoor photovoltaic lighting equipment can be fixed.

The utility model discloses a family type multifunctional washstand which comprises a cabinet body and a wash basin assembly arranged above the cabinet body, the front face of the cabinet body is an inclined face, the inclined face and the ground form a space used for containing a wheelchair, a drawer assembly is arranged on one side of the inclined face, and the drawer assembly comprises a plurality of drawers and layer plates which are arranged in a stacked mode. The drawers and the shelf boards are connected with the cabinet body in a sliding mode, the adjacent drawers are separated through the shelf boards in the vertical direction, the wash basin assembly comprises a wash basin mechanism and a faucet mechanism, and the wash basin mechanism comprises a first wash basin and a second wash basin which are distributed in a stepped mode. The water faucet mechanism comprises a first water faucet and a second water faucet which are respectively arranged above the first water basin and the second water basin; according to the utility model, the wash basin mechanisms are distributed in a stepped manner and have different heights, so that the use requirements of different family members are met, the two wash basins can be used at the same time, and the wash basin mechanisms distributed in the stepped manner enrich the functions of the wash table, so that the family members can wash safely and comfortably.

The utility model relates to the technical field of valves, and discloses a wear-resisting ball valve which comprises a valve body, a valve pipe and a valve ball, the valve pipe penetrates through the valve body and is fixedly installed in the valve body, a spherical cavity is formed in the middle of the valve pipe, and the valve ball is installed in the spherical cavity in a rotating mode. The drainage device is arranged between the valve ball and the valve pipe, when the valve ball is controlled to rotate and the flow speed is adjusted, the drainage device is switched on, the flow dividing and pressure reducing effects are achieved, and the situations that the side wall of the valve ball is abraded and the service life of the valve body is shortened due to the fact that impurities in fluid directly wash the side wall of the valve ball are avoided.

The invention discloses a production system and a production method of a polyethylene wire drawing material. The production system comprises a feeding unit, a polymerization unit and a powder treatment unit, the polymerization unit comprises a stirred tank reactor; a discharge port of the stirred tank reactor is sequentially connected with the external circulation cooler and the circulation feed port through the circulation pump to form a first circulation pipeline; the discharge end of the circulating pump is also connected with a sampling branch; the powder treatment unit comprises a solid-liquid separator, a hexane refining unit and an extrusion granulation unit; a feed port of the solid-liquid separator is communicated with a discharge end of the circulating pump through a sampling branch, a liquid phase outlet of the solid-liquid separator is divided into a first passage and a second passage, and the liquid phase outlet is connected to the stirred tank reactor through the first passage to form a second circulating pipeline; the third circulating pipeline is formed by sequentially connecting the third circulating pipeline to the hexane refining unit and the stirred tank reactor through a second passage; the extrusion granulation unit comprises a mixer and an extruder which are connected in sequence, and a feed port of the mixer is communicated with a solid-phase outlet of the solid-liquid separator.

The invention belongs to the technical field of circuit boards, and particularly relates to a hole plugging method and a circuit board. The hole plugging method comprises the following steps: preparing a substrate, wherein the substrate is provided with a first plate surface and a second plate surface which is arranged opposite to the first plate surface; drilling is conducted, specifically, the base plate is flatly laid, a female hole is drilled in the first plate face in the first direction, the female hole is provided with a first hole opening located in the first plate face, and the first direction points to the second plate face along the first plate face; electroplating: electroplating a metal material on the hole wall of the female hole so as to enable the female hole to form a plated hole, and arranging a preset position on the hole wall of the plated hole; the area of the cross section of the hole section, between the first hole opening and the preset position, of the plating hole is gradually reduced in the first direction; and hole plugging: injecting a fluid material into the plating hole along the hole wall of the plating hole at the first hole opening. According to the invention, the flow rate of the resin material can be controlled, so that the risk that the resin plug hole is not full due to too fast resin flow can be greatly reduced, and plug hole cavities and plug hole recesses are prevented from being formed in the plated hole.

The utility model relates to the technical field of fruit juice production, and discloses a fruit juice filling device with a quantitative function, which comprises a machine body, a transport frame is fixedly connected in the machine body, a support plate is fixedly connected in the transport frame, a motor I is fixedly connected to the side wall of the support plate, and a plurality of rotating plates are fixedly connected to the output end of the motor I; wherein one end of one rotating plate is rotationally connected to the side wall of the supporting plate, one end of each rotating plate is rotationally connected with a connecting plate, one end of each connecting plate is fixedly connected with a moving column, and the side wall of each connecting plate is rotationally connected with a fixing plate. According to the fruit juice filling device, through cooperation of the rotating plate, the connecting plate, the movable column and other structures, orderly transportation of fruit juice is effectively achieved, a necessary time window is provided for filling of the fruit juice, and therefore the fruit juice filling efficiency is greatly improved.