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93results about How to "Short answer structure" patented technology

Magnetic rotating shaft

The invention discloses a magnetic rotating shaft. The magnetic rotating shaft comprises a first magnetic ring part and a rotating shaft part, wherein the rotating shaft part comprises an engaging shaft; the engaging shaft comprises a disc-shaped part and a damper for stopping the engaging shaft from pivoting; an arc groove part fixedly connected with the engaging shaft is arranged between the damper and the disc-shaped part; a second magnetic ring in sliding fit on the engaging shaft is arranged between the arc groove part and the disc-shaped part; the magnetism of the second magnetic ring is opposite to the magnetism of the first magnetic ring; large enough attraction appears when the second magnetic ring and the first magnetic ring are close to each other by a certain distance; toothed parts which can be engaged with each other or are complementary are arranged on opposite surfaces of the second magnetic ring and the disc-shaped part; through the toothed parts thereon, the second magnetic ring and the disc-shaped part can be mutually locked in a direction around the engaging shaft; and the arc groove part is connected with the second magnetic ring through an elastic component. The magnetic rotating shaft has the advantages as follows: after adoption of the structure, the defect that in the prior art, a buckle and a hook must be matched for use, with poor compatibility, is overcome; the magnetic rotating shaft is simple in structure, so that the attractive appearance of the magnetic rotating shaft is not affected.
Owner:HEFEI LCFC INFORMATION TECH

Automatic spraying device

The invention discloses an automatic spraying device. The device comprises a to-be-sprayed workpiece conveying system, a spraying system and a control system. The to-be-sprayed workpiece conveying system comprises a rack, a sliding rail arranged on the rack and a driving device. The spraying system comprises a set of spraying guns distributed in the spraying width direction, a paint supply mechanism providing paint for the spraying guns, and a valve group controlling the spraying guns to be opened and closed. The control system comprises an image detector arranged on the upstream of the spraying guns in the to-be-sprayed workpiece conveying direction. At least one clamp is arranged at one end of the sliding rail and can move on the sliding rail in the horizontal direction. The automatic spraying device is simple in structure, convenient to operate and good in stability, can be used for automatically spraying to-be-sprayed workpieces in a 360-degree dead-corner-free mode in the spraying process, guarantees that thickness of paint on the to-be-sprayed workpieces is uniform, guarantees spraying quality, improves spraying efficiency, and is suitable for industrial application and popularization.
Owner:SUZHOU YOULONG PLASTIC RUBBER PRECISION MFG CO LTD

Sliding door window

The invention discloses a sliding door window, and belongs to the technical field of door windows. According to the sliding door window, sliding rails are arranged on the top and the bottom of a frame body respectively, a door window body comprises a sliding door window body and an outward-push door window body, and idler wheels are arranged on the top surface and the bottom surface of the sliding door window body respectively, and are used in cooperation with the sliding rails so that the sliding door window body can slide back and forth in the frame body in a cooperative mode; sliding chutes are further formed in the top and the bottom of the frame body respectively, and are formed in the outer sides of the sliding rails respectively, and supporting portions which can be used in cooperation with the sliding chutes are arranged on the top and the bottom of the outward-push door window body respectively, and are arranged in the sliding chutes in a matched mode so that the outward-push door window body can be pushed to move towards the outer side of one side or can slide towards the two sides; inclined surface matching is adopted by the contact surface between the sliding door window body and the adjacent outward-push door window body so that the outward-push door window body can slide in or out in the inclination direction of the inclined surface of the outward-push door window body; a flashing board is transversely hinged to the top of the frame body. Due to the fact that the sliding door window has the function of preventing rain, the function of preventing snow and the function of preventing dust, the sliding door window cannot be easily corroded by rainwater, when the sliding door window is closed, sashes of the sliding door window are located on the same plane, and when the sliding door window is opened, the sashes of the sliding door window are in an overlapped state.
Owner:王兴泉

Automatic cutting equipment

The invention discloses automatic cutting equipment. The equipment comprises a carrying table, a lifting mechanism, a cutting wheel driven by a motor, a water spray assembly, a dust cover, an air blower and a plasma fan, wherein a plurality of through holes are formed in the working table top of the carrying table; the working table surface is a conveying belt driven by a driving wheel and a driven wheel; a waste storage box is arranged in the carrying table; the cutting wheel is driven by the lifting mechanism to move up and down; the lifting mechanism is mounted at an inlet of the carrying table; the water spray assembly comprises a spray head and a water pump, the working surface of the spray head faces the contact position of the cutting wheel and the working table top, and the water pump is connected with the spray head by the aid of a guide pipe; the dust cover covers the carrying table; the air blower is arranged at the top of the dust cover, and the working surface of the air blower directly faces the working table top; and the plasma fan is mounted at an outlet of the carrying table, and the working surface of the plasma fan directly faces the working table top. The equipment is simple in structure, convenient to use and capable of effectively removing dust and reducing environmental pollution and damage to human bodies.
Owner:SUZHOU HUANING MACHINERY MFG

Apparatus for sampling radioactive liquid sample having different depths in container

PendingCN107014643AAvoid overtaking or undertakingShort answer structureWithdrawing sample devicesEngineeringVALVE PORT
The invention provides an apparatus for sampling a radioactive liquid sample having different depths in a container. The problem of inconvenience in sampling of the radioactive liquid having different depths in the container is solved. The apparatus includes a sampling tube, a suction device and a sampling bottle, the sampling end of the sampling tube is provided and connected with a support, a connecting piece for mutually communicating the sampling tube, the suction device and the sampling bottle is arranged and connected among the sampling tube, the suction device and the sampling bottle, and stop valves are arranged between the sampling tube and the connecting piece and between the sampling bottle and the connecting piece. The suction device is drawn and pushed to discharge a gas in the device and pump the liquid sample into the sampling bottle, and the connecting piece cooperates with the stop valves to make the liquid flow unidirectionally, so the integral apparatus guarantees the quality of the sampled sample, and also has the advantages of simple structure, convenience in operation, and high applicability.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Public garbage can capable of compressing garbage

The invention discloses a public garbage can capable of compressing garbage. The public garbage can comprises a shell, and a baffle plate is vertically welded at the bottom of the shell; a rectangularguiding groove which penetrates through the baffle plate is formed in the top of the baffle plate in the length direction of the shell; a rectangular accommodating groove which is formed in the length direction of the baffle plate is formed in the inner wall of the bottom of the guiding groove; a screw which is arranged in the height direction of the shell is mounted in the accommodating groove;the top of the screw is movably connected with the inner wall of the top of the guiding groove in a sleeving manner; a rectangular push plate which is connected with the guiding groove in a sliding and sleeving manner is connected with the outer ring of the screw in a threaded and sleeving manner; top plates which are symmetrically arranged about the push plate are welded at the two ends, stretching out of the guiding groove, of the push plate; sleeves are vertically welded at the lower parts of the ends, close to the screw, of the top plates; and movable rods are movably connected to the ends, away from the top plates, of the sleeves in a sleeving manner. According to the public garbage can, the structure is simple, operation is convenient and quick, on one hand, garbage in the garbage can is compressed, and on the other hand, garbage is effectively prevented from entering a driving mechanism at the top of the garbage can.
Owner:广州市首试科技有限公司

Tapered ceramic bottleneck green body forming device

The invention relates to a tapered ceramic bottleneck green body forming device, in particular to the technical field of ceramic equipment. The tapered ceramic bottleneck green body forming device comprises a U-shaped green body forming device support (1), a low-speed rotating motor (2), a telescopic pole (3), a tapered grinding head (4), telescopic pressing devices (5) and bottleneck mold grooves (6), wherein the low-speed rotating motor (2) is arranged in the middle of the U-shaped green body forming device support (1), the telescopic pole (3) is arranged at the lower end of the low-speed rotating motor (2), the tapered grinding head (4) is arranged at the lower end of the telescopic pole (3), the telescopic pressing devices (5) are arranged at two ends of the U-shaped green body forming device support (1), and the bottleneck mold grooves (6) are formed in inner sides of the telescopic pressing devices (5). The tapered ceramic bottleneck green body forming device is simple in structure and adopts the tapered grinding head to rotationally grind and form a green body inside a mold, and is convenient, fast and simple to operate.
Owner:陈仲礼

Magnetic punch

The invention provides a magnetic punch. The magnetic punch comprises a punching block and a magnetic cart; the punching block is rectangular; the two sides of the punching block are limited by use of limiting columns in the vertical direction; small magnetic blocks of which the magnetic lines of force are vertical are fixed on the two sides of the lower part of the punching block; the magnetic lines of force of every two adjacent small magnetic blocks on each side of the punching block are opposite in the vertical direction; the magnetic cart is arranged on the lower part of the punching block; small magnetic blocks corresponding to the lower part of the punching block in position are fixed on the upper parts of the two side edges of the magnetic cart, respectively; conveying lines are designed to penetrate through the middle positions of the two sides of the magnetic cart under the punching block; raw material plates are assembled on the upper parts of the conveying lines by use of punching templates. The magnetic punch is characterized in that magnetic force is provided for the punching block as punching force; the magnetic punch is simple in structure and low in cost; the magnetic force comes from permanent magnets, and therefore, the power consumption is lower and the use cost is low.
Owner:苏州艾虎数码科技有限公司

Cement barrel cleaning equipment convenient to clean

InactiveCN107671092AEasy to cleanRealize the effect of tapping to clearHollow article cleaningEngineeringMobile device
The invention provides cement bucket cleaning equipment which is easy to clean, and relates to the field of mechanical equipment. The easy-to-clean cement bucket cleaning equipment includes a fixed frame, and both sides of the top of the fixed frame are fixedly connected with support columns, and the top of the support column is fixedly connected with a fixed rod, and the inside of the fixed rod is provided with a first A mobile device and a second mobile device, the first mobile device includes a first motor. The easy-to-clean cement bucket cleaning equipment achieves In order to drive the effect of moving the moving rod, when the moving rod is moving, the knocking hammer is constantly moving back and forth, thereby realizing the effect of knocking and removing the cement on the cement bucket body, so that the cement can be removed It becomes simple and efficient, and solves the problem that the cement bucket is very inconvenient when cleaning.
Owner:郑艳峰

Double-fulcrum fan structure and cabinet air conditioner

The invention provides a double-fulcrum fan structure and a cabinet air conditioner. The double-fulcrum fan structure comprises a mounting plate, a volute, a centrifugal fan and a volute cover plate.The volute is fixedly arranged on the mounting plate. A centrifugal fan mounting cavity is formed in the volute. The volute cover plate is fixedly arranged on the volute and is located outside the centrifugal fan mounting cavity. The centrifugal fan is arranged in the centrifugal fan mounting cavity. One end of the centrifugal fan is supported on the mounting plate, and the other end of the centrifugal fan is supported on the volute cover plate. The double-fulcrum fan structure and the cabinet air conditioner provided by the invention are simple and reasonable in structure, and the number of parts and screws can be effectively reduced, so that the assembling efficiency is improved; and a fan of the double-fulcrum fan structure is lower in operating noise and lower in cost, the rotation stability of fan blades of the air conditioner can be effectively ensured, the operating noise of the air conditioner is lowered, the load of a motor is reduced, and the service life of the motor is prolonged.
Owner:GREE ELECTRIC APPLIANCES INC

Push-in type electronic connector

The invention relates to a push-in type electronic connector. The push-in type electronic connector of the present invention comprises a shell; the shell includes a left wiring end and a right wiringend; a wiring copper sheet and a spring movement chamber are arranged in each wiring end; the wiring copper sheet includes a contact end and a connection end; a recessed hemispherical contact plate isarranged at the contact end; and a pushing block and a pressure spring are arranged in the spring movement cavity. The push-in type electronic connector of the present invention is simple in structure and reasonable in design. A push-in type connection mode is adopted to bridge two conductors, and therefore, the push-in type connection mode can not only reduce the difficulty of wiring, but also facilitate disassembly compared with an existing screw fastening connection mode; and terminals are located inside the connector, so that better protection can be realized.
Owner:镇江科胜电子科技有限公司

Front cabin structure of off-road vehicle body

The invention relates to the technical field of automobile structures, in particular to a front cabin structure of an off-road vehicle body. The structure comprises a floor assembly, side reinforcing assemblies are arranged on the two transverse sides of the floor assembly in the vertical direction, and the lower ends of the side reinforcing assemblies are fixed to the transverse sides of the floor assembly; a cabin longitudinal beam assembly which is arranged in the longitudinal direction, and the end, close to the floor assembly, of the cabin longitudinal beam assembly is fixed to the upper end of the side reinforcing assembly; a front wall assembly which is arranged in the transverse direction, and the two ends of the front wall assembly are fixedly connected with the side reinforcing assemblies on the two sides respectively; a water tank cross beam assembly which is transversely arranged, and the two ends of the water tank cross beam assembly are fixedly connected with the cabin longitudinal beam assemblies on the two sides; the lower end of the front wall assembly is fixed to the floor assembly, and the lower end of the front wall assembly, the side reinforcing assemblies on the two sides and the floor assembly form a stress cavity space for dissipating the bending moment and torque of the cabin longitudinal beam assembly. The front cabin is simple in structure, can bear large longitudinal stress by constructing a frame type structure, and is good in structural stability and high in lightweight degree.
Owner:DONGFENG OFF ROAD VEHICLE CO LTD

Architectural ornament air purifying equipment

Architectural ornament air purifying equipment comprises a frame body, a plugging device, an air outlet hopper, a first filtering device, a support device and an air inlet device. The frame body is provided with a first blocking frame, a second blocking frame, first triangular blocks, a first filtering screen and a second filtering screen. The plugging device comprises an air outlet frame, a plugging block, a rotating frame, a spring, a first vertical rod, a first support and a first fixing block. The air outlet hopper is provided with a third filtering screen, a first supporting ring and a second supporting ring. The first filtering device comprises a filtering frame, a second vertical rod, a fourth filtering screen and a third vertical rod. The support device comprises a first supporting rod, a first inclined rod, a cushion plate and a first transverse rod. The air inlet device comprises a supporting plate, an air inlet hopper, an air inlet pipe, a draught fan, a fifth filtering screen and a second inclined rod. The architectural ornament air purifying equipment can effectively purify indoor air in the ornament decorating stage, effectively remove dust and other large particles in the indoor air, discharge the purified air out and improve the quality of the indoor air.
Owner:廖伟城

Wheel type movable bearing crowbar

InactiveCN105668473AEasy to movePrinciple Structure Short AnswersCrowbarsTransformerEngineering
The invention discloses a wheel type movable bearing crowbar. The wheel type movable bearing crowbar is characterized in that the wheel type movable bearing crowbar comprises a crowbar body, bearing wheels, a crow plate, a triangular reinforcing rib and a small crow plate, wherein the bottom of the crowbar body is welded to the crow plate, and the obtuse angle formed between the crowbar body and the crow plate is 95-115 degrees; the two bearing wheels are installed at the joint of the crowbar body and the crow plate; the triangular reinforcing rib is welded to the upper portion of the welded joint of the bottom of the crowbar body and the crow plate; and the small crow plate is welded to the top of the crowbar body, and the obtuse angle between the crowbar body and the small crow plate is 95-115 degrees. The wheel type movable bearing crowbar has the advantages that the principle structure is simple, usage is convenient, large equipment such as transformers can be pried, and the crowbar is convenient to move; and meanwhile, due to the small crow plate arranged at the other end of the crowbar body, small equipment can be pried conveniently, the work efficiency is improved, manpower and material resources are saved, and much cost is reduced.
Owner:STATE GRID CORP OF CHINA +1

sliding doors and windows

The invention discloses a sliding door window, and belongs to the technical field of door windows. According to the sliding door window, sliding rails are arranged on the top and the bottom of a frame body respectively, a door window body comprises a sliding door window body and an outward-push door window body, and idler wheels are arranged on the top surface and the bottom surface of the sliding door window body respectively, and are used in cooperation with the sliding rails so that the sliding door window body can slide back and forth in the frame body in a cooperative mode; sliding chutes are further formed in the top and the bottom of the frame body respectively, and are formed in the outer sides of the sliding rails respectively, and supporting portions which can be used in cooperation with the sliding chutes are arranged on the top and the bottom of the outward-push door window body respectively, and are arranged in the sliding chutes in a matched mode so that the outward-push door window body can be pushed to move towards the outer side of one side or can slide towards the two sides; inclined surface matching is adopted by the contact surface between the sliding door window body and the adjacent outward-push door window body so that the outward-push door window body can slide in or out in the inclination direction of the inclined surface of the outward-push door window body; a flashing board is transversely hinged to the top of the frame body. Due to the fact that the sliding door window has the function of preventing rain, the function of preventing snow and the function of preventing dust, the sliding door window cannot be easily corroded by rainwater, when the sliding door window is closed, sashes of the sliding door window are located on the same plane, and when the sliding door window is opened, the sashes of the sliding door window are in an overlapped state.
Owner:王兴泉

A virtual visualization control method and system for robot transportation

The invention discloses a virtual visual control method and a virtual visual control system for robot transportation. The method comprises the steps of establishing three-dimensional models on a robot and a simulated environment in which the model is arranged by means of Solidworks, and introducing the established three-dimensional models into a 3DCreate platform; performing visual simulation parameter definition through a Python API program in the 3DCreate platform; transmitting motion state information of the robot and components in the simulated environment to a visual remote server; performing filtering and matching on the received information, loading the information after filtering and matching on the corresponding three-dimensional model in the 3DCreate visual environment by means of COM API of the 3DCreate visual environment, and driving the three-dimensional models perform synchronous display. Through performing filtering and matching on the information, a large amount of hardware instruction information which is irrelevant with visualization is filtered; information processing speed in visual simulation is remarkably improved; and visual simulation is accurately performed on motion of the robot.
Owner:CENT SOUTH UNIV

Miniature plate rolling machine

InactiveCN104043695ARealize the rolling processShort answer structurePulp and paper industryIdler-wheel
The invention provides a miniature plate rolling machine, comprising a main pressing roller, a rotating roller and a passive roller, wherein the two ends of the main pressing roller and the two ends of the rotating roller are respectively connected by symmetric rotating arms, the lower parts of the rotating arms are assembled on movable tracks through idler wheels capable of rotating around self axes, the two ends of the main pressing roller and the two ends of the passive roller are respectively connected by symmetric passive arms, the lower ends of the passive arms are fixed with the ground through hinged fixing seats, one end of an active roller is coaxially and fixedly connected with a hand wheel, and a crank is arranged on the hand wheel. Raw materials to be subjected to plate rolling can penetrate through a position between the main pressing roller and the rotating roller and between the main pressing roller and the passive roller, and the pressing action of the main pressing roller is realized by moving the rotating arms for compressing the raw materials to be subjected to plate rolling. Then the hand wheel is used for manually rotating the crank to drive the main pressing roller to rotate, thus the plate rolling process of the raw materials is realized.
Owner:仲杏英

Product inspection system

The invention relates to the product inspection technical field, and discloses a product inspection system comprising a server and a field inspector; the server comprises an authority unit, an inspection line unit, an inspection table unit, a database unit and an analysis unit; the authority unit distributes the check authority and task distribution authority for users; the inspection line unit issues an inspection route and presets attribute data for each node; the inspection table unit forms an inspection check table and issues same to the field inspector; the database unit stores the inspection table data; the analysis unit pre-stores and calculates the completeness of each inspection item in the inspection task; the field inspector comprises a task processing unit, an inspection dotting unit and an inspection feedback unit; the task processing unit is used for executing the inspection route issued by the server; the inspection dotting unit is used for automatically filling the inspection check table; the inspection feedback unit is used for returning the inspection check table to the server. The product inspection system integrates inspection dotting, recording with alarming, thus optimizing data integration, and improving work efficiency.
Owner:上海迅智科技有限公司

Glass light guide plate and glass diffusion plate fused backlight structure

The invention discloses a glass light guide plate and glass diffusion plate fused backlight structure which sequentially comprises a reflecting plate, a glass light guide plate, a diffusion ink layer,a glass diffusion plate, an OCA adhesive and an optical film from inside to outside. Light guide net points are printed on the back face of the glass light guide plate. An LED light source group is arranged on the side of the glass light guide plate. The glass light guide plate and the glass diffusion plate are used for replacing an existing plastic light guide plate and an existing plastic diffusion plate, and the expansion coefficient in application is reduced. The glass light guide plate and the glass diffusion plate are fused together, and display is achieved in a side-entry backlight mode. The whole structure is simple and the reliability is strong.
Owner:DONGGUAN YINTAIFENG OPTICAL TECH CO LTD

Three-way HDMI signal source switching equipment

The invention discloses three-way HDMI signal source switching equipment. The equipment comprises an infrared remote control and a signal processor; the signal processor is provided with three HDMI signal input ports and one HDMI signal output port, and the signal processor is further respectively connected with a power module and an infrared receiving module; when in use, the power module provides a 5V direct current working power supply to the signal processor; three HDMI signal input ports input three-way HDMI signal sources to the signal processor; the infrared receiving module receives acontrol command sent out by the infrared remote control, and transmits the control command to the signal processor; and the signal processor selects the inputted three-way HDMI signal sources after receiving the control command, processes the selected HDMI signal sources, and outputs the processed HDMI signals through the HDMI signal output port. The equipment has two sets of control ends, and played HDMI signal sources can be switched at any time during use, thus the operation is convenient and efficient.
Owner:成都优购科技有限公司

Method and system for intrusion detection of distribution terminal unit (DTU) based on machine learning

The invention discloses a method and system for intrusion detection of a DTU based on machine learning, belonging to the field of intelligent power grid security. The method comprises the following steps: port identification, data acquisition, transmission, data processing and dimension reduction of the DTU, construction of a classifier based on a neural network and a least square support vector machine, an intrusion behavior detection experiment of the DTU, and timely sounding of an alarm when abnormity occurs. According to the invention, high-dimensional feature data are reduced by adoptinga principal component analysis method, and then a model is established by utilizing features after dimension reduction; secondly, dual verification is performed by adopting the least square support vector machine and a neural network algorithm so as to improve detection accuracy and reduce a false alarm rate; and finally, the framework of the intrusion detection system adopts a modular design, sothe system is suitable for intrusion detection in the field of intelligent power grids, and is good in portability and universality.
Owner:SHENZHEN POWER SUPPLY BUREAU +2

Cable joint peeling device for electric power

The invention discloses a cable joint peeling device for electric power. The cable joint peeling device comprises a fixed handle, a box body, a tool bit and a movable handle, wherein the fixed handleis fixedly installed on the box body, the movable handle is installed on the box body in a sliding mode, an annular rod is installed in the box body in a sliding mode, the movable handle is fixedly connected with the annular rod, the tool bit is installed in the box body in a sliding mode through a cutter rod, a sliding groove is formed in the box body, and the cutter rod is arranged in the sliding groove in a sliding mode. A connecting rod is fixedly mounted on the annular rod, and a roller is rotatably mounted at the tail end of the connecting rod; the tail end of the cutter rod is arrangedto be round, the roller makes contact with the tail end of the cutter rod, and a depth control mechanism is arranged on the box body. The device is simple in structure and strong in function; the cutting depth of the cable can be effectively controlled, so that the cable cutting device can be used for different cables; good applicability is realized.
Owner:国网山东省电力公司临邑县供电公司

Waste material collection device for machining of guide rod of road marker

The invention discloses a waste material collection device for machining of a guide rod of a road marker. The waste material collection device for machining of the guide rod of the road marker comprises a fixing frame, a collection box and a recycling box. The waste material collection device is characterized in that the collection box is arranged on the side wall of one end of the fixing frame; athrough hole is formed in a side wall of the bottom end of the collection box, and a transportation channel is arranged at the bottom end of the collection box; one end of the transportation channelis movably connected to the interior of the recycling box in a clamped manner. A rectangular through hole is formed in a side wall of the upper end of the recycling box, and a limiting block is arranged inside the rectangular through hole. A movable push rod is arranged in the interior of the limiting block. The waste material falling into the collection box slides to the interior of the transportation channel. Through transferring of the transportation channel, the waste material falls into the interior of the recycling box. Waste material produced in the machining process of the guide rod iscollected; pollution caused to the machining environment by the waste material produced in the machining process is avoided; time spent on hand sweeping of the waste material is also saved; and laborintensity of waste material treatment is lowered.
Owner:CHANGXING QIKAI MECHANICAL EQUIP CO LTD

Gas mask capable of collecting condensate water generated by breathing and preventing dripping

The invention discloses a gas mask capable of collecting condensate water generated by breathing and preventing dripping. The gas mask comprises a main body assembly, a detachable and replaceable filter box assembly and an air valve group; the main body assembly comprises a face mask, a head hoop and a sealing rubber ring, the head hoop is fixedly connected to the outer side of the face mask and used for fixing during wearing, the sealing rubber ring is fixedly connected to the face attaching side of the face mask and used for being tightly attached to the face to achieve the sealing effect, and the part surrounded in the face mask is an inner cavity; and the filter box assembly comprises a mounting assembly fixed with the face mask and a replaceable filter box assembly which can be detached and replaced. The gas mask perfectly solves the problems that sweat accumulates in the gas mask and condensate water is generated, the situation that the condensate water is left in the gas mask to affect the wearing comfort is avoided, and the situation that liquid directly leaks out through the gas outlet valve to cause pollution is avoided; and the gas mask has a relatively simple structure while realizing functions, and is relatively low in manufacturing cost.
Owner:南京企冠检测科技有限公司

A kind of vocs online pretreatment device in water

The invention discloses an online pretreatment device for VOCs (volatile organic compounds) in water. The online pretreatment device for the VOCs integrates the functions of collection, enrichment, thermal desorption, back-blowing sample introduction and the like into a whole. The online pretreatment device can be directly connected with a gas chromatographic instrument for completing online monitoring of the volatile organic compounds in the water. The device adopts modular structural design, and the different processes are completely by valve switching. The device can automatically perform waste liquid discharge and cleaning of a sample pipe after automatic pretreatment, the purification of a pipeline and the online aging of an adsorption column can be simultaneously performed, the mutual interference is avoided, and the analysis period is shortened. The device has the advantages of simple structure, simplicity in operation, economy and practicality and does not need an additional water removing device and an automatic sample introduction device, and the device is very suitable for online continuous monitoring of the VOCs of water quality.
Owner:LIHE TECH (HUNAN) CO LTD

Mud filter-pressing dehydration test device and test method

The invention relates to a mud filter pressing dehydration test device and a test method. According to the technical scheme, the mud filter-pressing dehydration test device comprises a pressurizing assembly and a filter-pressing assembly which are independent of each other, the pressurizing assembly comprises a universal testing machine loading device, and the universal testing machine loading device comprises a pressurizing shaft and a base; the filter-pressing assembly comprises a slurry containing column, a through cylindrical cavity is formed in the slurry containing column, a movable bearing capable of moving in the axial direction is arranged in the cylindrical cavity, the bottom of the slurry containing column is connected with a filter-pressing base, and geotechnical cloth is arranged between the slurry containing column and the filter-pressing base; and the filter-pressing base is placed on the base and is provided with a drainage structure. The pressurizing assembly and the filter-pressing assembly are independent of each other, a slurry sample can be independently injected into the filter-pressing assembly, and reverse loading can be carried out, so that the phenomenon that air exists between the slurry sample and a loading medium is avoided. A universal testing machine can accurately control the pressurizing pressure value and the pressurizing speed, and the phenomenon of mud splitting when the air pressure is too high is avoided.
Owner:CHINA RAILWAY 14TH BUREAU GRP LARGE SHIELD ENG CO LTD +1

Durable cylinder valve

The invention relates to a durable cylinder valve comprising a valve body (1). The upper part of the valve body (1) is provided with a hand wheel and a valve rod (2) which is driven by the hand wheel and extends into the valve body (1). The valve body (1) is internally provided with a pressing cap (3) which sleeves the external part of the valve rod (2). The external ring surface of the lower end part of the pressing cap (3) is an external conical surface (31), and the internal ring surface is an external arc surface (32), wherein smooth transition is performed between the external conical surface (31) and the external arc surface (32). Correspondingly, the valve body (1) is provided with an internal conical surface (11) which supports the external conical surface (31) and an internal step surface (12) which supports the external arc surface (32). The durable cylinder valve is simple in structure. The small conical surface and the step surface are adopted for hard sealing, the pressing cap is great in centering and the valve rod is enabled to be more concentric relative to the valve body so that a sealing member arranged in the pressing cap is enabled to be more durable.
Owner:YANGZHOU ANYI VALVE

Sedimentation bottle

The invention relates to a hydrothorax and ascites sedimentation bottle. The bottle comprises a storage part for accommodating hydrothorax and ascites, the storage part is provided with an internal cavity for accommodating hydrothorax and ascites, a liquid inlet for loading hydrothorax and ascites and a sealing piece for detachably sealing the liquid inlet are arranged at the upper part of the storage part, the bottom of the storage part is provided with a sample discharge port for discharging target cells and a control piece for controlling the sample discharge port to be opened / closed, a liquid outlet for discharging supernatant and an adjusting part for controlling the opening / closing of the liquid outlet are arranged on the side surface of the lower part of the storage part, the liquidinlet, and the sample discharge port and the liquid outlet are respectively communicated with the internal cavity. The sedimentation bottle is simple and compact in structure, facilitates collection,storage and transfer of hydrothorax and ascites, can conveniently and safely treat supernatant while fully retaining cell suspension and / or precipitate, and prevents the biosafety problem caused by random discharge.
Owner:SICHUAN CANCER HOSPITAL

Device and method for preparing spherical metal powder through laser-assisted grinding

The invention discloses a device for preparing spherical metal powder through laser-assisted grinding, and belongs to the field of material processing.The device comprises an atmosphere chamber, a collector, a workbench, a grinding motor and a laser head, the laser head, the grinding motor, the workbench and the collector are all arranged in the atmosphere chamber, and the workbench is connected with a workbench driver; the grinding motor is connected with a grinding tool bit, the grinding tool bit is arranged above the workbench, and a metal block is placed on the workbench; a collecting opening is formed in the side, close to the workbench, of the collector, and the center of the collecting opening and the contact position of the metal block and the grinding tool bit are arranged on the same straight line. And an optical fiber is connected above the laser head. Metal blocks are crushed into fine powder particles through a low-energy efficient grinding machining method, then high-temperature powder is heated and melted into liquid drops through laser beams, irregular particles formed through grinding are converted into spheres, the structure is simple, operation is convenient, and efficient and low-consumption machining of spherical metal powder is achieved.
Owner:SHUNDE GRADUATE SCHOOL UNIV OF SCI & TECH BEIJING
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