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1667 results about "Closed space" patented technology

Forming method of contact lens, contact lens assembly, and contact lens product

A contact lens assembly includes a cup, a dry contact lens that is not for being worn on an eye, a sealing layer removably connected to the cup, and a wetting liquid supply. The sealing layer and the cup jointly form an enclosed space that receives the dry contact lens therein and that does not accommodate any liquid. After at least one of the sealing layer and the cup produces an opening, the cup can receive a wetting liquid from the wetting liquid supply through the opening, such that the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is suitable for being worn on the eye and that has a water content greater than a water content of the dry contact lens.
Owner:PEGAVISION CORP

Intelligent noise reduction method and system based on mine earphone

PendingCN121506078ASustainable transportationSound producing devicesPropagation attenuationNoise level
The invention discloses an intelligent noise reduction method and system based on a mine earphone, and the method comprises the following steps: S1, obtaining an original noise signal in a mine operation environment, and carrying out the preprocessing of the original noise signal; s2, designing an adaptive compensation mechanism according to the reflection characteristics of the closed space of the mine, calculating a sound wave propagation attenuation coefficient and reflection delay, constructing a roadway reverberation model, and generating advanced compensation sound waves; and S3, carrying out collaborative fusion on the advanced compensation sound wave and a main noise reduction signal to generate a composite noise reduction signal. The invention relates to the technical field of intelligent noise reduction. According to the intelligent noise reduction method and system based on the mine earphone, the noise level in a mine operation environment is effectively reduced, the communication efficiency and the working comfort of operators are improved, potential damage of noise to hearing of the operators is reduced, and therefore the overall safety and the production efficiency of mine operation are improved.
Owner:SHENHUA SHENDONG COAL GRP +1

A vehicle structure

A vehicle structure comprising a portion including first and second members forming a closed space. The portion comprises first and second reinforcement members located in the closed space and attached to one another. First and second legs of the first reinforcement member are corrugated and comprise corrugations, wherein the corrugations comprise ridges and grooves. Each one of the first and second legs of the first reinforcement member has an outer surface. At the outer surface each one of one or more of the ridges of the first leg of the first reinforcement member has a recess at a first location. The first leg of the first reinforcement member has one or more inclinations in one or more directions transverse to the longitudinal direction so as to form the recess at the first location.
Owner:AUTOTECH ENG SL

Fork arm type whole vehicle loading robot

The invention relates to the technical field of loading equipment, in particular to a fork arm type whole vehicle loading robot which comprises a supporting plate and a material support and further comprises a mounting frame movably mounted on the supporting plate. The lifting and lateral moving mechanism comprises a lifting assembly and a lateral moving assembly; the material conveying mechanism comprises a chain conveying assembly mounted on the mounting frame; the fork arm assembly comprises a first fork arm installed on the installation frame, a second fork arm is installed above the first fork arm in a sliding mode, and a fork arm pushing mechanism is arranged between the first fork arm and the second fork arm; and the radar control system is used for scanning the material support on the chain conveying assembly in real time to obtain data of the material support. The material tows are grouped by a plurality of tows and then are fed into the carriage at a time to be boxed and unloaded, automatic and intelligent loading is achieved, and the problems that a manual forklift is low in efficiency, and a forklift in a closed space cannot work are solved. Automation and intellectualization of whole vehicle loading are achieved, the loading efficiency is improved, the labor cost and the material damage risk are reduced, and the system adapts to the complex loading environment.
Owner:ZHEJIANG WEITONG INTELLIGENT TECH CO LTD

Highly sealed invasive biosensing assembly and biological information monitoring apparatus

PCT designated stageWO2026011841A1CatheterSensorsBiologyNeedle guide
A highly sealed invasive biosensing assembly and a biological information monitoring apparatus. The present invention relates to the technical field of biosensors. The highly sealed invasive biosensing assembly comprises a biosensor, and an electrode-protecting cover is snap-fitted to the lower part of the biosensor. A guide needle is snap-fitted into the biosensor, longitudinally penetrating the biosensor. The biosensor further comprises a sensing electrode and an electrode pressure plate. In a first state, the electrode pressure plate, the lower part of a needle guide seat, and the interior of the electrode-protecting cover form a first closed cavity. In a second state, the electrode-protecting cover is detached from the biosensor, so that at least part of the sensing electrode entering the first closed cavity and at least part of a needle body extend out of the first closed cavity. The invasive biosensing assembly and the biological information monitoring apparatus form a closed space inside the assembly and the apparatus by means of a snap structure and the positional relationship between components during assembly, thereby improving the hermeticity in the assembly and the apparatus, so that the assembly is in a sterile state before being implanted into a human body.
Owner:SHENZHEN REFRESH INTELLIGENT TECH CO LTD

Internal inspection system and method for oil filling equipment

The invention discloses an internal inspection system and method for oil filling equipment, and the system comprises a non-oil-discharge butt joint device which is in sealed butt joint with a manhole door and forms a sealed channel for an inspection robot to go in and out, and the inspection robot which is in a fish-shaped streamline shape and is provided with a multi-mode sensor group, the data acquisition module is used for acquiring internal structure data when moving in oil in the oil filling equipment; the ground control terminal is arranged outside the oil charging equipment; and the signal transmission module is in communication connection with the ground control terminal, the inspection robot and the multi-mode sensor group so as to receive and process the structural data and send a control instruction to the inspection robot. Accurate sealing butt joint with the manhole door of the oil filling equipment is achieved through the adapter, the cabin door mechanism and the butt joint cabin, opening and closing of the cabin door can be stably controlled through the driving mechanism in the closed space, and insulation oil leakage and external environment interference are effectively blocked. A fish-shaped inspection robot is adopted to adapt to a narrow space and a complex structure in the oil filling equipment.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY +1

Quadruped robot space precise positioning method and system based on deep learning

The invention discloses a quadruped robot space precise positioning method and system based on deep learning. The quadruped robot space precise positioning method specifically comprises the steps that S1, a laser radar data stream and an inertial measurement unit data stream are aligned to generate a synchronous sensing data sequence in a unified mode; s2, determining a mapping pose sequence through consistency evaluation of poses output by the offline point cloud registration algorithm pool; s3, performing parallel loopback detection to generate a unified loopback constraint set; s4, the mapping pose sequence, the loopback constraint set and the pre-integration constraint are written into the factor graph model to generate a three-dimensional point cloud reference map; s5, the local point cloud frame and the three-dimensional point cloud reference map are registered, and a map matching pose is output; s6, the map matching pose and the pre-integration result are written into a factor graph model to continuously solve and output a continuous-time six-degree-of-freedom pose result; and S7, outputting a six-degree-of-freedom pose result in continuous time. According to the invention, direction constraint consistency point cloud registration and dual-channel loopback optimization are introduced, and stable and high-precision positioning of the closed space is realized.
Owner:QINGDAO QINGCHENG DIGITAL TECH CO LTD

Seabed sampling equipment

The utility model relates to a sampling device, and discloses seabed sampling equipment which comprises a shell, a hose, a bearing middle frame, a sampling device, a waterproof sealing ring and a supporting device. The shell can comprise an upper pressure-resistant shell and a lower pressure-resistant shell, the upper pressure-resistant shell and the lower pressure-resistant shell form a containing space, and a pipeline hole is formed in the upper portion of the upper pressure-resistant shell. One end of the hose is connected with the pipeline hole, the other end of the hose is connected with the offshore equipment, and the hose is used for communicating the accommodating space with the offshore equipment, so that the seabed sampling equipment can obtain electrical supply of the offshore equipment. The bearing middle frame is fixed in the shell, the sampling device comprises an air compression pump, a sampler actuating cylinder, a sampler and a sampler plug, the sampler is fixedly connected with the sampler plug, the sampler plug is in sliding connection with the sampler actuating cylinder, an opening of the sampler actuating cylinder faces downwards, and the sampler plug and the sampler actuating cylinder form a closed space; the air compression pump is fixed on the bearing middle frame and is communicated with the closed space so as to push the sampler to be downwards inserted into the seabed.
Owner:SUN YAT SEN UNIV

Feeding device for wafer box and feeding method thereof

ActiveCN121368367ARobot handButt joint
The invention relates to a feeding device for a wafer box and a feeding method of the feeding device. The feeding device comprises a frame body which is provided with a conveying opening. The rotation driving assembly is connected to the position, close to the conveying opening, of the frame. The turnover structure is rotatably connected to the rotation driving assembly and located at the transportation opening, the turnover structure comprises a bearing assembly and a locking piece, the locking piece is used for locking the wafer box to the bearing assembly, and the turnover structure rotates together with the wafer box under the driving action of the rotation driving assembly; when the overturning structure is in the first state, the bearing assembly is matched with the transportation opening and forms a closed space with the frame body, one side of the bearing assembly is located outside the frame body and used for being in butt joint with a wafer box, and a mushroom head of the wafer box is located on the upper end face of the bearing assembly; and when the overturning structure is in the second state, the mushroom head of the wafer box faces the interior of the frame body and corresponds to the position of the transportation opening. According to the feeding device, the motion path of the mechanical arm can be shortened, the occupied area of equipment is reduced, and meanwhile the treatment efficiency is improved.
Owner:JIANGSU XINMENG SEMICON EQUIP CO LTD

Feeding hopper for breeding hens

ActiveCN223816741UAvicultureFisheryZoology
The utility model relates to the technical field of poultry feeding equipment, in particular to a breeding hen feeding hopper which comprises a hopper body provided with a feeding port. The movable baffle comprises a transverse plate and an inclined plate which are adjacently connected, the transverse plate is horizontally and movably inserted into the side wall of the hopper body, one side edge of the transverse plate extends out of the hopper body, a blanking channel is formed on the left side of the inclined plate, and a closed space is defined by the right side of the inclined plate and the lower portion of the transverse plate; the driving assembly is arranged in the hopper body, connected with the movable baffle and used for driving the movable baffle to move horizontally; the material conveying pipe is arranged at the lower end of the hopper body, a material falling opening is formed in the part, located in the hopper body, of the material conveying pipe, and the material falling channel is gradually tightened from top to bottom and matched with the material falling opening. The feeding device has the advantages of being capable of adjusting the feed discharging amount, not prone to blocking and the like.
Owner:AFU (HEBEI) AGRI TECH CO LTD

A vehicle structure

A vehicle structure comprising a portion including first and second members forming a closed space. The portion comprises one or more tubular reinforcement members located in the closed space. The tubular reinforcement member is corrugated. The tubular reinforcement member comprises two or more member sections positioned after one another in the longitudinal direction. One of the member sections bulges outward in a first direction and in a second direction opposite to the first direction and bulges inward in a third direction, the third direction being transverse to the first and second directions, while another one of the member sections, which adjoins said one of the member sections, bulges inward in the first and second directions and bulges outward in the third direction.
Owner:AUTOTECH ENG SL

Animal feeder and device thereof

The utility model relates to an animal feeder and a device thereof. The animal feeder comprises a frame body, a container, a surrounding baffle plate, a rotating structure, a detection mechanism and a driving mechanism, the detection mechanism and the driving mechanism are arranged on the frame body; the frame body comprises a door frame and a base, and the base is provided with a containing groove for containing a container. The fence plate and the base form a first fence area; the rotating structure is arranged on one side of the container and comprises an opening position and a closing position; when in the closing position, the rotating structure forms a closed space with the base and the fence plate respectively; and when in the opening position, the rotating structure and the fence plate form a second fence area. The container has the following beneficial effects that when the container is in the closed position, the rotating structure and the first enclosure area can seal the container, so that animals cannot make contact with the container in all directions; when the base is at the opening position, the first enclosure area is combined with the second enclosure area, so that animals in feeding can be further protected, and other animals are prevented from approaching the container from the side surface or the upper part of the base.
Owner:SHENZHEN XUNMIAN TECH CO LTD

Automobile fireproof cover

The invention provides an automobile fireproof cover. The automobile fireproof cover comprises a top plate; the bottom supporting frame is located below the top plate and is in a hollow ring shape; the upper end of the cover cloth is connected with the edge of the top plate, and the lower end of the cover cloth is connected with the bottom support frame to form a closed space; the telescopic columns are multi-stage sleeves and do telescopic motion in the vertical direction, the upper ends of the telescopic columns are fixedly connected with the top plate, and the lower ends of the telescopic columns are fixedly connected with the bottom supporting frame; the telescopic control assembly is connected with the telescopic columns, controls the telescopic columns to stretch out and draw back synchronously, and drives the cover cloth and the bottom supporting frame to be unfolded downwards or folded upwards relative to the top plate for storage. A stable closed space is formed through automatic unfolding of a pneumatic mechanical structure, the functions of active cooling and smoke discharging are integrated while a fire source is efficiently isolated and explosion spreading is prevented, the safety of rescue workers can be guaranteed, the fire extinguishing efficiency is improved, and storage is convenient.
Owner:DONGFANG AVIATION EQUIP MFG CORP SHANGHAI

Body training mask for passively adjusting oxygen concentration in breathing air

The invention discloses a body training mask for passively adjusting oxygen concentration in breathing air, and relates to the technical field of physical training equipment, the body training mask comprises a body training mask mechanism, the outer side of the body training mask mechanism is connected with a bandage mechanism, and one side of the body training mask mechanism is provided with a filtering mechanism. According to the body training mask, the first-layer mask body and the second-layer mask body are flexibly connected through the flexible connecting piece, folding operation can be conveniently carried out in the using process, the size of the mask can be adjusted through a folding structure, and then the oxygen concentration can be accurately adjusted and controlled according to the breathing dead space principle; after the volume of the mask is adjusted by the folding structure, low-oxygen exhaled air which is not completely exhausted in the closed space is mixed with outside fresh air in the mask to form a stable low-oxygen environment, the volume of the mask is increased by unfolding the folding structure, the breathing dead space is enlarged, and the oxygen concentration is reduced; the contraction folding structure reduces the size, the breathing dead space becomes small, and the oxygen concentration is increased.
Owner:THE NAVAL MEDICAL UNIV OF PLA

Air-tight seal cutting device and processing method thereof

The application discloses a kind of air-tight seal buckle cutting machining device and processing method thereof, it is related to cutting machining technical field, including lathe main body and first box board, the tailstock one end is fixedly connected with first tool rest, the one end of first tool rest is fixedly connected with second tool rest, the inside of lathe main body is fixedly connected with first box board and second box board, the one end of first box board and first tool rest is evenly provided with cleaning mechanism, by the cleaning mechanism being set, when air-tight seal buckle cutting, under the cooperation of first elastic frame, second elastic frame and guide frame, make cutting process complete in closed space, effectively prevent splashing, avoid its embedding clearance of slide rail, tool rest and other components;Meanwhile, the cutting debris directly falls into collection box via chip removal pipe, without manual blowing cleaning, significantly reduce the labor intensity of staff and cleaning difficulty, while improving overall processing efficiency.
Owner:SHENGLI OILFIELD HAISHENG PETROLEUM MACHINERY MFG

Modeling file generation method, electronic equipment and computer readable storage medium

The invention discloses a modeling file generation method, electronic equipment and a computer readable storage medium, and relates to the technical field of digital models.The modeling file generation method comprises the steps that target objects in an original building graph are extracted, and the target objects at least comprise wall objects; determining a central axis of each wall object, and extending each central axis to perform closing processing on the adjacent wall objects to generate closed space data; determining each basic primitive of each wall object, extracting attribute quantification information of each basic primitive, and associating the attribute quantification information, each basic primitive and each wall object according to the affiliation relationship to obtain structured data of each wall object; and based on the closed space data and the structured data, generating a target modeling file of the original building corresponding to the original building graph. According to the method, each target object is directly extracted from the original building graph to generate the target modeling file, so that the precision and convenience of building modeling are ensured.
Owner:CHONGQING UNIV

Label splicing method after vehicle identification failure in semi-closed space

The invention discloses a label splicing method after vehicle identification failure in a semi-closed space, and the method comprises the following steps: carrying out the joint calibration of vehicles through a camera and a radar, and endowing each vehicle entering the semi-closed space with an entry label; constructing a plane gridding base map for the semi-closed space, and constructing existence probability distribution of the target vehicle in the base map; if the detection of the target vehicle is lost, predicting and correcting the position of the target vehicle; and when the target vehicle is identified by the radar again, track connection is carried out on the current observation item and the historical base map item with the highest matching degree. The method has the beneficial effects that by introducing a base map track memory and re-recognition matching mechanism, the label information of the vehicle in a multi-radar and multi-camera cooperative scene can be continuously continued. Compared with the problem of re-numbering after shielding or broken identification in a traditional method, the method can effectively reduce the phenomena of track breakage and wrong numbering, and remarkably improves the continuity and reliability of vehicle global tracking.
Owner:NINGBO LANGDA ENG TECH CO LTD

Unmanned aerial vehicle equipment for monitoring confined space and autonomous operation method of unmanned aerial vehicle equipment

The invention provides unmanned aerial vehicle equipment for closed space monitoring and an autonomous operation method thereof, and particularly relates to the technical field of mechanical automation, the unmanned aerial vehicle equipment comprises a fuselage main body, a power system, a data acquisition and control module and other components; the fuselage main body adopts a combined design of an upper anti-collision frame, a lower anti-collision frame and a load-bearing structure, the power system is in a vertically overlapped and staggered six-rotor layout, the data acquisition and control module integrates a flight control computer, an airborne calculation unit and a standardized secondary development interface, and an external special sensor can be flexibly mounted; according to the autonomous operation method, positioning and map construction in a GPS-free environment are realized through fusion of a laser radar and a visual sensor, and path planning, dynamic obstacle avoidance, task execution and autonomous return are completed in combination with an autonomous navigation algorithm.
Owner:深圳市翼歌科技有限责任公司

Intelligent visual inspection apparatus and method based on keyboard conductive film processing

The application discloses an intelligent visual detection device and method based on keyboard conductive film processing, relates to the technical field of visual detection, and comprises a detection table, a top of the detection table is fixedly connected with an upper cover frame, and a first sliding electric track for conveying is arranged on the top of the detection table, and the device further comprises a moving table, the moving table is fixedly connected to a moving end of the first sliding electric track, two electric push rods are fixedly connected to one side of the moving table, fixed plates are fixedly connected to telescopic ends of the two electric push rods, a self-checking cloth is arranged between the connecting plate and a second winding roller, the self-checking cloth is unfolded, dust flying can be avoided, the self-checking cloth is unfolded to form a local closed space, and dust flying is further inhibited, and after the self-checking cloth is unfolded, a detection camera can be self-checked through the self-checking cloth, and in the whole process, pressing down, air blowing, cloth winding, and self-checking cloth unfolding are all coordinated and completed by the same driving chain.
Owner:JIANGSU ZHENZHEN NEW MATERIAL TECH CO LTD

Externally-hung heat-insulating nickel-saving stainless steel civil air defense door

The utility model provides an externally-hung heat-insulating nickel-saving stainless steel civil air defense door, which is characterized in that a door frame is fixedly arranged on a wall body; the civil defense door body is arranged on the door frame in an openable manner; a heat insulation cavity is formed in the heat insulation hanging frame; the heat dissipation hanging frame is arranged outside the closed space of the civil air defense door body, a heat exchange cavity is formed in the heat dissipation hanging frame, the heat exchange cavity communicates with the heat insulation cavity through a connecting pipe, and heat exchange media are arranged in the heat insulation cavity and the heat exchange cavity; the driving mechanism is arranged on the connecting pipe and used for driving the heat exchange medium to circulate between the heat exchange cavity and the heat insulation cavity; the heat insulation layer is arranged on the heat insulation hanging frame and arranged on the outer side of the heat insulation cavity. According to the civil air defense door, the heat insulation hanging frame, the heat dissipation hanging frame and the driving mechanism are matched, heat on the outer side of the civil air defense door body can be absorbed and dissipated through the heat dissipation hanging frame, the heat insulation effect of the civil air defense door body is improved, the heat insulation effect of the heat insulation hanging frame can be further improved through the heat insulation layer, and then the heat insulation effect of the civil air defense door is improved.
Owner:HEBEI PROVINCIAL INST OF PROD QUALITY SUPERVISION & INSPECTION +1

A wire box protection device

The utility model relates to building construction technical field discloses a wire box protection device, including protection panel and support structure, the support structure includes two first plug -in board of opposite setting and two second plug -in board of opposite setting, the first plug -in board and second plug -in board all are fixed at the bottom edge department of protection panel, and two first plug -in board and two second plug -in board enclose and form rectangular frame, the middle part of first plug -in board is equipped with the first opening of adapting with wire box, and the second opening is arranged between two first plug -in board and second plug -in board, the protection panel is equipped with screw hole and the hand buckle hole of being convenient for dismantling. The utility model provides a wire box protection device, forms the closed space protection wire box through, and makes wire box protection device protruding structure surface through the adjusting screw, reaches the effect that the finished surface is flush with the decoration, improves wire box protection effect and construction quality, has the advantages such as convenient construction, wide application range.
Owner:SHANXI FIRST CONSTR GROUP

Latent heat storage

ActiveUS12680765B2Latent heat storageCopper
A latent heat storage includes a ceramic part, formed of a polycrystalline material, and including a closed space famed therein, and a metal part provided inside the closed space, and including copper.
Owner:SHINKO ELECTRIC IND CO LTD

Ventilation and dust removal device for color master batch production

The invention discloses a ventilation and dust removal device for color master batch production, and relates to the technical field of plastic processing equipment, the ventilation and dust removal device comprises a dust removal machine shell, a separation cavity and a purified air flow collecting cavity are formed in the dust removal machine shell, and an air suction port communicated with the purified air flow collecting cavity is formed in the top of the dust removal machine shell. After the air suction port is blocked, a closed space is formed in the dust removal filter box, when the sinter filter plate is extruded, the pressure of internal air is increased, the internal air reversely penetrates through micropores of the filter plate, loose dust on the surface is blown away, and the pulse reverse blowing effect without extra air source consumption is achieved; residual dust further falls off due to inertia force generated by sudden stop of a moving part, rigid collision occurs between a reset terminal point sinter filter plate and a dust removal filter box, generated high-frequency mechanical vibration is transmitted to the deep position of a bent groove of the filter plate, stubborn accumulated dust is thoroughly removed, a blind area of traditional airflow back flushing is made up, and the dust removal efficiency is remarkably improved due to the synergistic effect of the three parts.
Owner:NANJING SPECIAL PLASTIC TECH CO LTD

A carbon fiber product production apparatus and a production method

PendingCN122425916AFiberVacuum pump
The application relates to the technical field of carbon fiber composite material forming, in particular to a carbon fiber product production device and a production method. A first driving member can drive a laminated platform to move in a vertical direction, the laminated platform is provided with an accommodating cavity, a top plate of the laminated platform is provided with a plurality of first through holes at intervals, a vacuum pump is communicated with the accommodating cavity, a first supporting member is located directly above the laminated platform, a second driving member drives a pressing member to move in the vertical direction, so that the pressing member can abut against the top surface of the first supporting member, a silicone film is arranged between the first supporting member and the pressing member, and the top plate of the laminated platform abuts against the bottom surface of the first supporting member, so that the silicone film covers the carbon fiber mold. A closed space is formed by the silicone film and the laminated platform, one-time suction forming is realized by using the vacuum pump, the production efficiency is improved, the silicone film is uniformly stretched and closely attached to the curved surface of the carbon fiber mold under the action of vacuum negative pressure, the carbon cloth is extruded to be attached to the surface of the carbon fiber mold, wrinkles and bubbles are avoided, and the precision is improved.
Owner:GIANT KUNSHAN

Volume-variable pressure relief water meter

The utility model belongs to the technical field of water meters, and particularly relates to a volume-variable pressure relief water meter. A water inlet and a water outlet of a meter shell are respectively provided with a switch valve, a pressure relief device penetrates through the lower end of the meter shell and comprises a pressure relief pipe, a containing cavity used for temporarily storing water is formed in the pressure relief pipe, and a movable piston is further arranged on the inner side of the pressure relief pipe and can divide the containing cavity of the pressure relief pipe into an upper cavity and a lower cavity. The upper cavity is communicated with the interior of the watchcase; the moving piston is provided with a moving device capable of driving the moving piston to move up and down, and the up-and-down volume of the containing cavity can be changed through up-and-down movement of the moving piston; the volume of the upper cavity of the pressure relief pipe can be increased through downward movement of the movable piston, so that the volume of a closed space formed by the water meter and the switch valves at the two ends of the water meter is increased, the internal pressure is reduced, the pressure relief function is achieved, the acting force of water pressure on the pipe joint is reduced, the pipe joint is convenient to disassemble, and the working efficiency of water meter replacement is improved.
Owner:TAIAN HANYANG ELECTRONIC TECH CO LTD

Deep sea rapid barrier valve and method of use

PendingCN122107146ASpindle sealingsPlug valvesBlocked valvesMechanics
The application provides a deep-sea rapid blocking valve and a use method. The rapid blocking valve comprises a valve body, a valve cover and a valve rod. The valve body is internally provided with a valve cavity. The valve cover is connected with one side of the valve body to form a closed space. A flow channel is arranged in the valve cavity. A one-way valve structure and a two-way valve structure are arranged along the flow channel. The inner side end of the valve rod extends into the valve cavity and is connected with the one-way valve and the two-way valve in linkage. The one-way valve and the two-way valve are both provided with sealing structures between the valve body and the inner wall of the valve body. The L-shaped integrated valve body type is arranged in a side-mounted structure. The two-way ball valve is integrated in the interior. The structure is compact, light in weight, small in size, reduces the external leakage points of the valve, is convenient to install, improves the pressure-bearing capacity and the sealing capacity.
Owner:CHINA SHIP DEV & DESIGN CENT

A lighting device

The application discloses a lighting device, characterized in that comprising: a lamp shell and a lamp head, the lamp shell is connected with the lamp head and forms a closed space; at least one light emitting diode filament, the light emitting diode filament is arranged in the closed space; a stem, the stem is connected to the lamp head and is in electrical conduction with the light emitting diode filament; the light emitting diode filament comprises: a chip strip structure; a light conversion unit wrapping the chip strip structure; and electrodes respectively located at both ends of the length direction of the chip strip structure and electrically connected with the chip strip structure; wherein, at least part of the electrodes is wrapped in the light conversion unit; the chip strip structure comprises a substrate, the substrate comprises a first end and a second end away from the first end, and a deposition section between the first and second ends; the deposition section comprises a plurality of deposition units, the deposition units are provided with a linking layer; and a conductor layer for electrically connecting each deposition unit.
Owner:JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD

A method for filling of end-slope mining chamber based on bulk pressing pre-stressed top joint

PendingCN122328201AThermodynamicsPre stress
The application discloses a kind of based on bulk body pushing prestressed end help mining chamber filling method, including bulk body broken material filling, setting gravity pile, filling paste filling layer, pushing machine heap loading, chamber wall protection, chamber mouth closure, supplementary support and the like steps.The present application does not need to construct fixed facilities, with the advantages of flexible deployment, low investment cost, etc., while effectively solving the problem that loose material cannot support roof, suitable for short service life, slope overburden resource limited open pit end temporary mining operation;The unique design of gravity pile can enhance the stability of gravity pile, increase the friction at the bottom, prevent gravity pile from slipping or overturning;Artificial segmentation is carried out on the mining chamber, blocking the flow of bulk body broken material in the filling process towards the chamber mouth direction;It is convenient for prestressed segment loading;Provide a relatively closed space for the action of paste filling layer;Bulk body broken material filling layer can not only make up the settlement deformation, but also provide supplementary support force, while not increasing filling cost too much.
Owner:CHINA UNIV OF MINING & TECH

Sealed fully automatic photovoltaic glass calendering forming method and apparatus

PCT designated stageWO2026144464A1Process engineeringHeat conservation
A sealed fully automatic photovoltaic glass calendering forming method and apparatus. A calendering and conveying system calenders molten glass and then conveys same into a closed space, the molten glass is enabled to pass through each heat preservation zone, and under the combined action of each heat preservation zone and a cooling system, the temperature of the molten glass gradually decreases to form a glass ribbon having a certain thickness. By means of the method, the ambient temperature around a calendering apparatus can be effectively lowered, thereby effectively prolonging the service life of electronic components on the calendering apparatus. A console controls each driving system on the calendering apparatus to move, and detection assemblies collect movement data and feed back same to the console, so that initial parameters of glass can be quickly optimized, process parameter databases can be established, and commissioning and calibration of the apparatus can be quickly completed. The present invention can greatly reduce the difficulty and cost of early-stage commissioning, effectively improve the production efficiency and the control accuracy, and ensure the production quality of photovoltaic glass.
Owner:CHINA TRIUMPH INT ENG CO LTD

Inertial sensor and method for forming the same

An inertial sensor and a method therefor. The inertial sensor includes: a first substrate; a medium layer stacked on the first substrate; a first electric-conductive layer stacked on the medium layer, first openings being formed in the first electric-conductive layer and spaced from one another; second electric-conductive layers being bonded to the first electric-conductive layer through bonding structures, a gap being formed between adjacent second electric-conductive layers, which are connected to each other by a connection part, and second openings being formed in each of the second electric-conductive layers and spaced from one another; and a second substrate covering the first substrate, a closed space being formed between the second substrate and the first substrate. Compared with a traditional single-layer structure, the die size is reduced, the manufacturing cost is reduced, and the integration of device into portable consumer applications is improved, and XY axis sensitivity is improved.
Owner:AAC TECHNOLOGIES PTE LTD