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34results about How to "Sealed" patented technology

Clinical atomizer

The utility model relates to the technical field of atomizers, and discloses a clinical atomizer which comprises an atomizer body, heating mechanisms are fixedly connected to the two sides of the bottom of the front face of the atomizer body, a mask is in lap joint with the edge of one side of the atomizer body, and a sealing mechanism is arranged on one side of the mask. Supporting mechanisms are welded to the periphery of the bottom face of the atomizer body, a vessel is arranged on the other side of the mask, and the top of the vessel is in threaded connection with a cover body. According to the clinical atomizer, through the arrangement of the heating mechanism, the oxygen catheter is clamped in the two bearing rods, the oxygen catheter is limited and fixed in the clamping rod, the heating electric wire is started, the heating electric wire provides needed heat for the oxygen catheter, the temperature of medicine in the oxygen catheter can be increased, and the medicine can be atomized into tiny particles more easily; the medicine can penetrate into small parts of the respiratory tract more deeply, and the medicine absorption rate and the treatment effect are improved.
Owner:YONGFENG COUNTY MATERNAL & CHILD HEALTH FAMILY PLANNING SERVICE CENTER (YONGFENG COUNTY MATERNAL & CHILD HEALTH HOSPITAL)

Dust reducing device for coating production

The utility model relates to the technical field of coating production equipment, in particular to a dust reduction device for coating production, and solves the problems that in the prior art, waste water generated after spraying and dust reduction of an existing dust reduction device cannot be recycled, so that a large amount of clean water is consumed in the production process, water resources are wasted, the production cost is increased, and the production efficiency is increased. And the practicability of the device is reduced. A dust reducing device for coating production comprises a box body, a water tank is fixedly installed at the top of the box body, a water storage tank is formed in the inner bottom of the box body, a filter screen is arranged at the inner bottom of the box body, the outer portion of the filter screen is fixedly connected with the inner wall of the periphery of the water storage tank, and two water storage pipes are symmetrically arranged in the box body. The device achieves the effects of spraying dust fall and circulating filtration, saves water resources, reduces the production cost, and improves the practicability of the device.
Owner:MIANYANG JINGPENGYOU NEW MATERIALS TECHNOLOGY CO LTD

A fabric machine snake for rescue

ActiveCN224716177UEasy to pushFlexible shuttle
The utility model discloses a fabric machine snake for rescue, including snake head guide terminal, fabric lumen and pneumatic device, snake head guide terminal is streamline, and the front end of snake head guide terminal is equipped with sensor, and snake head guide terminal can turn to the motion, and the front end of fabric lumen is connected snake head guide terminal, and the tail end is connected pneumatic device, and fabric lumen is the soft belt or the thin tubular when not inflation, can fold and store, and pneumatic device can produce compressed gas, and from the tail part to the inflation in fabric lumen, and fabric lumen gradually expands and forms the stiff round pipe type under the action of air pressure, and fabric lumen extends forward while expanding into the round pipe shape, and the fabric lumen that extends forward drives snake head guide terminal to advance, under the guidance of snake head guide terminal, and the elongated fabric lumen can also turn or bend naturally with the location of environment, adopt fabric as the body of mechanical snake, convenient transportation material, will not collide the fragile surface of the scene, makes the personnel exempt from secondary injury.
Owner:KANGDIYA (JIANGSU) NEW MATERIAL TECH CO LTD

An experimental device and test method for simulating low vacuum transport pipe network structure

The present invention discloses an experimental device and test method for simulating a low vacuum transport pipe network structure, including an assembled low vacuum flexible pipe, a temperature control system, a particle release instrument, a vacuum control system, an infrared thermal imager and a 3D3C PIV system, which are used to monitor the position and change state of the inductive particles inside the assembled low vacuum flexible pipe; a data receiving terminal, which is used to receive and analyze the data of the temperature control system, the particle release instrument, the infrared thermal imager and the 3D3C PIV system, judge the data changes of the stress, temperature and air pressure inside the assembled low vacuum flexible pipe, and determine the sealing effect of the assembled low vacuum flexible pipe. The present invention has the ability to stretch and bend, effectively ensures the airtightness of the low vacuum tunnel structure, and can improve the ability of the tunnel structure to adapt to different deformations caused by temperature, pressure, etc.
Owner:SHANDONG UNIV

Integral structure of injection molding film box set

The utility model is applicable to the technical field of water treatment, and provides an integral structure of an injection molding membrane box group, which comprises a plurality of groups of injection molding membrane boxes connected up and down, each injection molding membrane box comprises two groups of transverse plates and two groups of longitudinal plates, a first water pipe is arranged at the top of each transverse plate, a plurality of groups of second water pipes vertically penetrate through the bottom of each first water pipe, first sealing rings are arranged in the two ends of the first water pipe, first sealing rings are movably arranged in the first sealing rings, and connecting assemblies connected with the longitudinal plates are arranged on the side faces, away from the first water pipe, of the first sealing rings. And the stability during connection is improved through a first limiting plate and a second limiting plate, and meanwhile the sealing performance is guaranteed through a first sealing ring, a first sealing ring, a second sealing ring and a second sealing ring.
Owner:SHANDONG CELICO MEMBRANE TECH CO LTD

A radioactive material cleaning device

A radioactive material cleaning device is used for cleaning radioactive solid waste in a hot chamber, and is characterized in that it includes a shell, a drum and a power assembly, wherein the drum is located inside the shell, the drum includes a hollow portion and a spiral slide, the spiral slide is in the form of a spiral in the vertical direction, and the spiral slide is arranged around the hollow portion, the power assembly drives the drum to clean the radioactive solid waste, the power assembly includes a transmission shaft and a driver, the transmission shaft passes through the shell and is connected to the drum, and the driver is located outside the shell and drives the transmission shaft.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD

Sampling bottle drying device for oil sample granularity detection

The utility model relates to the technical field of sampling bottles, and provides a sampling bottle drying device for detecting granularity of an oil sample, which comprises a box body, a drying box, a drying component and a drying device, wherein the drying box is fixedly arranged at the top of the box body; the drying assembly comprises a drying mechanism, a nitrogen cleaning mechanism, a lifting mechanism, a rotating mechanism, a plurality of spraying pipes, a U-shaped pipe and a plurality of connecting pipes fixedly installed on the outer side wall of the U-shaped pipe. A motor drives a lead screw to rotate in a sliding groove plate, a spraying pipe is adjusted upwards to stretch into a sampling bottle, gas in a filtering shell is extracted through a first air pump to be used for conducting hot air drying on the interior of the sampling bottle, and nitrogen in a nitrogen box is extracted through a second air pump to be used for cleaning the interior of the sampling bottle; and during air blowing and nitrogen blowing, the first gear is driven by the motor to rotate, and the second gear in linkage meshing connection drives the spray pipe to rotate on the rectangular frame, so that the drying and cleaning efficiency of the sampling bottle is effectively improved.
Owner:GUODIAN JIANTOU INNER MONGOLIA ENERGY CO LTD

An analyzer drying and dehumidifying device

ActiveCN224480484USealedMechanical engineeringPhysics
The utility model relates to analytical instrument technical field provides a kind of analytical instrument drying dehumidification device, including reagent card warehouse, the reagent card warehouse front side is fixedly installed by bolt and is enclosed, the top of the enclosed is provided with opening, moisture-proof box dehumidifier is fixedly installed above the opening, the side wall of the enclosed is fixedly installed L type board, the L type board is provided with a pair of groove, a pair of first T type magnetic block is arranged in the groove, the sealed door is hinged to the side of the enclosed, the second T type magnetic block is set to the inboard of the sealed door corresponding first T type magnetic block, the sealed strip is set to the sealed door corresponding the front side edge of the enclosed.
Owner:SHANDONG ZIFENG BIOTECHNOLOGY CO LTD

Green building curtain wall structure

The utility model discloses a kind of green building curtain wall structures, it is related to curtain wall technical field, including wall and several curtain wall components, the outer surface of several curtain wall components is all provided with connecting component, the connecting component includes two mounting plates, the outer surface of two mounting plates is fixed with the surface of wall, the opposite surface of two mounting plates is all set up with placing groove, the inner wall middle part of placing groove is fixedly connected with positioning plate, the left and right sides of the front of two mounting plates close to placing groove are all fixedly connected with lug. The utility model is through the use of tool to remove fixed bolt, then can be driven by overturning connecting plate to separate fixed plate and connecting block, then by moving curtain wall component to make that jack and the inner part of positioning plate separates, the inside of placing groove and the outer surface of frame separate, by the structure to realize the replacement of the curtain wall with crack after being damaged quickly, and it is simple and convenient to operate, convenient for staff use.
Owner:ZHONGJING TIANTONG DECORATION ENGINEERING (TIANJIN) CO LTD

Cleaning machine with sealing function

The application relates to the sealing technology field of a cleaning machine, in particular to a cleaning machine with a sealing function. The cleaning machine comprises a cleaning device, a track assembly fixed to the center of the cleaning device, a rotating assembly movably arranged in the track assembly, a transmission assembly sliding on the track assembly, a driving assembly fixed to the top of the cleaning device, the driving assembly being connected with the transmission assembly, a sealing assembly fixed to the inner wall of the top end of the cleaning device, a reset assembly fixed between the rotating assembly and the sealing assembly, and a cleaning assembly fixed to the top of the sealing assembly. The sealing assembly, the reset assembly and the cleaning assembly can have a certain sealing effect when the cleaning device is idle or in use, harmful gas can be directly discharged and filtered through the built-in filtering equipment of the cleaning device, the liquid in the cleaning device can also be filtered, the liquid can be used repeatedly, and the environment is protected.
Owner:浙江精力工具有限公司

Culture dish transfer box with good protection performance

The utility model relates to the technical field of microorganisms, and discloses a culture dish transfer box with good protection performance, which comprises a base, a support column is fixedly arranged at the upper end of the base, a rotating column is rotatably arranged at the upper end of the base and positioned on the outer side of the support column, and a plurality of rotating grooves are equidistantly formed in the outer side of the rotating column. A positioning hole is formed in the position, close to the upper end, of the outer side of the rotating column, a first through hole and a second through hole are formed in the position, close to the upper end, of the outer side of the supporting column, a positioning column is clamped to the position, located at the positioning hole, of one side of the rotating column, and a plurality of connecting rods are fixedly arranged on the outer side of the supporting column and the outer side of the rotating column at equal intervals; a culture dish is fixedly arranged on one side of each connecting rod. According to the transfer box disclosed by the utility model, a plurality of culture dishes can be transported at the same time, the use convenience of the culture dishes is ensured, and meanwhile, the plurality of culture dishes have certain sealing performance, so that the convenience and the practicability of the transfer box are improved.
Owner:BEIJING WEICHUANG BOJING BIOTECHNOLOGY CO LTD

Conductive sealing gasket structure of enamel equipment

PendingCN119594185Aincrease compression strokeSealedEngine sealsElectrostatic chargesTetrafluoroethyleneGraphite
The invention relates to the technical field of gaskets, in particular to a conductive sealing gasket structure of enamel equipment, which comprises a polytetrafluoroethylene jacket and a metal corrugated elastic ring gasket, the two end faces of the metal corrugated elastic ring gasket are fixedly connected with the end faces of the two asbestos-free or graphite-free filling layers respectively, the inner side faces of the metal corrugated elastic ring gasket and the asbestos-free or graphite-free filling layers are fixedly connected with the inner side face of the polytetrafluoroethylene clamping sleeve, and wedge-shaped grooves are formed in the inner side face of the polytetrafluoroethylene clamping sleeve. According to the conductive sealing gasket structure for the enamel equipment, the chemical corrosion resistance and hardness of tetrafluoroethylene are not changed, the compression stroke of the gasket is large, the sealing performance is excellent, the conductive and sealing performance is achieved at the same time, the enamel equipment does not need to be adjusted at all, the service life of the enamel equipment is prolonged, and the service life of the enamel equipment is prolonged. Cost is low and efficiency is high.
Owner:郭静

Protection structure of high-voltage cabinet partial discharge detector

The utility model relates to the technical field of partial discharge detectors, in particular to a protection structure of a high-voltage cabinet partial discharge detector, which comprises a cabinet shell outer body, four first clamping grooves are formed in one side of the cabinet shell outer body, and a clamping plate is arranged on one side of each clamping groove. The outer surfaces of the four clamping plates are connected with the inner surfaces of the four first clamping grooves in a clamped mode respectively, two first mounting holes are formed in one side of each clamping plate, a protection cover is arranged on one side of the cabinet shell outer body, and two mounting plates are fixedly connected to the two sides of the protection cover respectively. And two second mounting holes are formed in one side of each of the four mounting plates. According to the technical scheme of the utility model, bolts are fixedly connected inside the first mounting holes and the second mounting holes, so that the four mounting plates are fixedly connected with one sides of the four clamping plates, namely, one side of the protection cover is fixedly connected with one side of the cabinet shell outer body. And by arranging the sealing gasket, the connection between the protection cover and the cabinet shell outer body has sealing performance.
Owner:HENAN REAL ELECTRIC

Novel anti-winding rotating joint

The novel anti-winding rotary joint comprises a first adapter, a bearing fixing seat, a bearing, a sealing block and a second adapter, the first adapter penetrates through the bearing fixing seat and the bearing, the sealing block is inserted into the second adapter, the sealing block is arranged between the first adapter and the second adapter, and the second adapter is connected with the bearing fixing seat. The bearing is a ball bearing, the first adapter is sleeved with the bearing, at least one of the bearing fixing base and the second adapter is connected with an outer ring of the bearing, an annular protruding edge protruding inwards is arranged at the upper end of the bearing fixing base, and the upper end of the outer ring of the bearing is limited by the lower end of the annular protruding edge. A limiting piece is arranged on the first conversion head, the upper end of the limiting piece is connected with an inner ring of the bearing, and the bearing fixing base is in threaded connection with the second conversion head. The high-pressure water gun is good in sealing performance, and can effectively solve the problem that a high-pressure water gun pipeline is wound due to large relative rotation resistance.
Owner:SUZHOU ZEERWO MASCH TECH CO LTD

A method and system for air-cooled motor circulation ventilation and pressure regulation for high altitude conditions

PendingCN122512704ASolve the problem of reduced convection heat transfer efficiencyMake sure there is no leakageAir cycleElectric machinery
The application belongs to the technical field of air-cooled motors, and particularly relates to a circulating ventilation and pressure regulation method and system for air-cooled motors under high-altitude conditions. A sealed inner cavity surrounding a rotor is constructed by a sealed machine shell and an end cover type bearing. Based on the rotor fan driving air circulation, the air is cooled by a top heat exchanger after flowing through a heating component, forming an isolated internal circulation. The inner cavity air pressure and temperature are monitored in real time, and the air supplement threshold is corrected according to the load-temperature model, so that the main machine is instructed to supplement purified air by a variable frequency fan when the air pressure is insufficient, and the internal fan speed is adjusted. Periodic leakage diagnosis is performed, and when leakage or failure occurs, the system can perform load reduction operation to ensure that the air pressure and heat dissipation capacity are always maintained above the safety benchmark. Based on the load, temperature and air pressure linkage control mode, the air supplement is optimized, the air pressure maintenance and heat dissipation efficiency are met, the reliability of the system when the sealing performance deteriorates is improved, and the stable operation of the motor is ensured.
Owner:SHANDONG QILU ELECTRIC MOTOR MFG

Double-layer container sealing head

The utility model relates to the technical field of container end sockets, in particular to a double-layer container end socket which comprises an installation pipe body, a pressure reduction mechanism is fixedly arranged on the inner wall of the installation pipe body, and an extrusion sealing mechanism is movably arranged above the installation pipe body. The device is a double-layer container sealing head composed of an outer shell connected with an installation pipe body and an inner shell connected with an inner layer pipe, the device is fixed on a certain container through welding when the sealing head usually needs to have a certain sealing effect at present, and under the action of an extrusion groove above the installation pipe body of the device, the sealing head can be fixed on the container through the extrusion groove. According to the invention, the inner extrusion ring and the sealing ring on one side can seal the connected gap, the extrusion ring can move up and down under the influence of the internal pressure under the action of the extrusion spring mounted in the extrusion bin, and the sealing effect is achieved when the sealing ring moves; therefore, the effects of elastic extrusion and sealing are achieved.
Owner:浙江晟益封头有限公司

Capsule storage sealed bottle with sealing and light shielding functions

The utility model relates to the technical field of capsule storage, in particular to a capsule storage sealing bottle with sealing and light shielding functions, which comprises a bottle body, an instruction identification sticker is adhered to the surface of the bottle body, an efficient sealing mechanism is arranged at the position of a bottle opening of the bottle body, and a bottle opening sealing sleeve and a rubber bottle plug are arranged in the efficient sealing mechanism. A single grain pouring-out mechanism is arranged in the bottle body, and the single grain pouring-out mechanism is composed of a threaded groove and a single grain pouring-out assembly. According to the capsule storage sealed bottle, the sealing effect and the light shielding effect are improved when the capsule storage sealed bottle is used, and the sanitation degree is improved when capsules are taken out of the capsule storage sealed bottle.
Owner:EDFANS (BEIJING) MEDICAL LAB CO LTD

Dust collection pipe capable of stretching out and drawing back in two directions

The utility model discloses a bidirectional telescopic dust collection pipe, which belongs to the technical field of dust collection equipment, and is characterized by comprising a sleeve, a telescopic mechanism is arranged in the sleeve, a sealing assembly is arranged in the telescopic mechanism, the bottom of a fixing bolt abuts against the surface of a front cylinder, and a locking bolt is in threaded connection with the top of the sleeve. The bottom of the fixing bolt abuts against the surface of the rear cylinder, the fixing bolt is arranged on one side of the locking bolt, the length of the dust collection pipe can be adjusted by arranging the telescopic mechanism, the sealing effect during adjustment of the dust collection pipe can be improved, and in the prior art, a telescopic dust collection pipe can only improve the telescopic amount and cannot achieve complete sealing; by arranging the sealing assembly, the sleeve has the sealing effect, the dust collection effect of the dust collector cannot be affected by sealing of the interior of the sleeve, and the problem that in the prior art, the interior of the sleeve is not sealed is effectively solved.
Owner:WUXI RONGYI PLASTIC ELECTRIC APPLIANCE CO LTD

Plate connecting structure

The utility model provides a plate connecting structure. The plate connecting structure comprises a plate; the connecting piece is fixedly connected to one side of the plate and penetrates into the plate to be installed; wherein the connecting piece is provided with a main body part, the main body part is provided with a connecting surface facing the plate, the peripheral side of the connecting surface is fixedly connected with a flange part, the flange part extends along the peripheral side of the connecting surface and is closed, the connecting surface is fixedly connected with a connecting part, the connecting part penetrates into the plate and is deformed to form a blocking structure with the plate, and the flange part is embedded into the plate. According to the utility model, one side of the connecting part is fixedly connected to the connecting surface, the other side of the connecting part extrudes the plate, the connecting part penetrates into the plate and does not penetrate out of the other side of the plate, the connecting part penetrates into a material close to the plate, and the connecting part deforms at the same time to form a blocking structure, so that the plate is fixedly connected; therefore, connecting holes are prevented from being formed in the plates, and the structural stability of the plates can be kept in the connecting process.
Owner:PEM CHINA

skeleton oil seal

ActiveCN224706290UWith adaptive sealing capabilitiesReduce friction loss
This application discloses a skeleton oil seal, comprising: a skeleton; a sealing lip assembly, the sealing lip assembly being wrapped around the outside of the skeleton, the skeleton and the sealing lip assembly forming a cavity; a sealing contact surface formed on the side of the sealing lip assembly facing away from the skeleton; and a spring assembly disposed within the cavity and used to provide preload force to the sealing lip assembly. This application discloses a skeleton oil seal to solve the problem of unsatisfactory performance of existing skeleton oil seals.
Owner:CHINA ENERGY LONGYUAN ENVIRONMENTAL PROTECTION CO LTD

A connecting structure and fastener

ActiveCN224592526ULong effective thread lengthScrew in deepInterference fitClassical mechanics
This invention discloses a connection structure and fastener, comprising a fastener including a body, an insert portion disposed at one end of the body, and a washer installed within the insert portion. The body has an axially penetrating inner hole, the inner wall of which has an internal thread adjacent to the insert portion. The washer is interference-fitted with the insert portion, thereby forming a blind hole in the fastener. The other end of the body also has a riveting portion; a plate having a riveting hole for connecting with the riveting portion, the fastener being interference-fitted with the plate; and a bolt including a threaded shank threadedly connected to the body of the fastener and a nut connected to the end of the shank away from the fastener. The bolt is used to fix at least one connector, the connector being fitted against the side of the plate away from the fastener, and the nut abutting against the other side of the connector, thereby fixing the connector. In this invention, the internal thread of the fastener penetrates the body, having a longer effective thread length within a limited axial space, thereby ensuring connection strength.
Owner:PEM CHINA

Circuit board heat dissipation components and their preparation methods, energy storage systems

ActiveCN122121046BSmall reboundreduce warpageThermodynamicsLiquid state
This invention relates to the field of energy storage technology, particularly to circuit board heat dissipation components and their manufacturing methods, as well as energy storage systems. The circuit board heat dissipation component includes a circuit board, a frame, thermally conductive adhesive, and functional components. The circuit board includes a substrate and electronic components, with the substrate having a heat dissipation area. The frame forms a heat dissipation cavity. The functional components and the circuit board respectively seal a first opening and a second opening of the heat dissipation cavity, with the heat dissipation area connected to the heat dissipation cavity. The thermally conductive adhesive is configured to be injected into the heat dissipation cavity through the first or second opening in a liquid state and then solidify, fixing the thermally conductive adhesive to both the heat dissipation area and the functional components. When the substrate thickness is between 1.6 mm and 2.0 mm, the frame hardness is between 38 and 70 degrees, and the frame thickness is not less than 6 mm. Through the arrangement of the frame and the thermally conductive adhesive, a heat conduction path is formed between the circuit board and the functional components, enabling efficient conduction and dissipation of heat generated by the circuit board or functional components, ensuring the operational reliability of the circuit board and functional components.
Owner:SHENZHEN POWEROAK NEWENER CO LTD

Rapid expansion grouting head device special for emergency grouting in subway tunnel hole

The utility model discloses a special quick expansion grouting head device for emergency grouting in a subway tunnel hole, which comprises a hollow grouting head sleeve, a four-block external expansion sleeve body, a hexagonal fastening nut and a static mixer, an external expansion base is integrally arranged at the bottom of the hollow grouting head sleeve, the hollow grouting head sleeve is sleeved with the four-block external expansion sleeve body, and the hexagonal fastening nut is arranged at the bottom of the hollow grouting head sleeve. The upper portion of the hollow grouting head sleeve is in threaded connection with a hexagonal fastening nut through external threads, the hexagonal fastening nut abuts against the four-block external expansion sleeve body, the top of the hollow grouting head sleeve is detachably connected with the bottom end of a static mixer, and the top end of the static mixer is connected with a cement grout inlet connector. And one side of the static mixer is connected with a water glass inlet joint. According to the device, through the combination of a block external expansion structure, the hollow sleeve design and a modular assembly, rapid installation, high sealing performance and low-disturbance grouting of the grouting head are achieved, and the problems that in the prior art, efficiency is low, and the grout leakage risk is high are comprehensively solved.
Owner:WUHAN METRO BRIDGE & TUNNEL MANAGEMENT CO LTD +1

Cleaning device

ActiveCN224206751USealedNot easy to releaseMachine detailsFloor-scrubbing machinesBrushPhysics
The utility model provides cleaning equipment, and relates to the technical field of cleaning. A front scraping strip is arranged at the end, located on the front side of the rolling brush, of the rolling brush cover plate in the advancing direction of the floor brush body. The rolling brush cover plate turns over relative to the floor brush body so that the front scraping strip can move upwards or downwards. The driving unit is used for driving the rolling brush cover plate to turn over. The control module is connected with the driving unit and used for controlling the driving unit to drive the rolling brush cover plate to turn over. The base is provided with a containing table for containing the floor brush assembly and an air outlet, and the floor brush assembly is placed on the base. When the floor brush assembly is in a drying mode, the control module controls the rolling brush cover plate to turn upwards, and a gap is formed between the bottom of the front scraping strip and the containing table so that hot air blown out of the air outlet can reach the rolling brush. When the floor brush assembly is in a self-cleaning mode, the control module controls the rolling brush cover plate to turn over downwards, the bottom of the front scraping strip is attached to the containing table, and the front scraping strip blocks the rolling brush and the air outlet. According to the cleaning equipment, the problem of secondary pollution caused by dirt generated by the rolling brush during self-cleaning of the rolling brush cover plate can be solved.
Owner:MOK INTELLIGENT TECHNOLOGY (SUZHOU) CO LTD

Hydraulically driven enhanced rotary jetting mechanism and drill bit assembly

ActiveCN115929204Bincrease fluid velocityIncrease crack propagationConstructionsLiquid/gas jet drillingSpiral flowJet (fluid)
The application relates to a liquid-driven enhanced rotary jet mechanism and a drill bit assembly, the liquid-driven enhanced rotary jet mechanism comprising an outer cylinder, a pad sleeve, a spiral rod, a center cylinder, a leakage cylinder and a guide nozzle, the pad sleeve being in a cylindrical structure and fixed on the inner side wall of the outer cylinder, the pad sleeve being internally provided with the spiral rod capable of rotating relative to the pad sleeve, the outer side wall of the spiral rod being provided with a spiral flow channel penetrating through the axial two ends of the spiral rod; the inner side wall of the outer cylinder is further provided with a bearing, the bearing being located below the pad sleeve and the spiral rod, the inner ring of the bearing being fixed with the center cylinder, the upper end of the center cylinder being fixedly connected with the lower end of the spiral rod, and the center flow channel being communicated with the lower end of the spiral flow channel on the outer side wall of the spiral rod; the lower end of the center flow channel is further provided with the leakage cylinder, and the guide nozzle is mounted on the leakage cylinder. The application can form an enhanced rotary jet, has the advantages of the rotary jet "water mill" effect of stretching-shearing rock breaking, can increase the fluid velocity of the drill bit surface, and can improve the drilling speed and protect the drill bit.
Owner:CHINA NAT PETROLEUM CORP +1

High-voltage-resistant explosion-proof electric heating tube

ActiveCN224192086UAvoid exceeding stress limitsPrevent safety accidents such as rupture or explosionOhmic-resistance waterproof/air-tight sealsHeater elementsRelief valveElectric heating
The utility model discloses a high-pressure-resistant explosion-proof electric heating tube, which comprises a tube body, an end cover is arranged at the open end of the tube body, an insulating support rod is arranged at one end, facing the tube body, of the end cover, an electric heating wire is arranged on the insulating support rod, and a pressure release valve is connected to the tube body and close to the electric heating wire. The pipe body sequentially comprises a lining layer, a reinforcing layer and a protective layer from inside to outside. The utility model has the advantages that the spring type pressure release valve is arranged on the pipe body close to the electric heating wire, so that when the electric heating wire is heated to heat gas in the pipe body to expand and the pressure is increased, the pressure release valve can be opened in time to discharge redundant gas in the pipe, and the pressure in the pipe is prevented from exceeding the bearing limit; therefore, safety accidents such as breakage and even explosion of the tube body are effectively prevented, the use safety of the electric heating tube is greatly improved, and stable operation of application scenes such as industrial production is guaranteed.
Owner:CHANGZHOU JIASEN ELECTRICAL APPLIANCES CO LTD

Urine collection and storage device

The utility model discloses a urine collecting and storing device which comprises a U-shaped clamping frame supporting shell, a urine receiving opening is formed in the upper end of the U-shaped clamping frame supporting shell, a funnel-shaped urine receiving shell is fixedly arranged at the bottom end of the urine receiving opening, and the bottom end of the funnel-shaped urine receiving shell is fixedly connected with an opening of a urine collecting bottle. The bottom of the urine collecting bottle is fixedly connected with the surface of the bottom end of the U-shaped clamping frame supporting shell, a ring pad is fixedly arranged on the surface of a urine receiving opening in the upper end of the U-shaped clamping frame supporting shell, the urine receiving opening of the U-shaped clamping frame supporting shell is movably provided with a sealing assembly, and the sealing assembly can cover the urine receiving opening in a sliding mode; according to the utility model, the probability that a sample is polluted can be reduced, an accurate and reliable urine sample is provided for subsequent detection, and a detection result is ensured to reflect the health condition of a human body truthfully.
Owner:THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV