16results about How to "Sealed" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The utility model discloses a kind of samplers for battery-grade nickel sulfate solution, it is related to battery-grade nickel sulfate solution field, including sampling shell, the top of the sampling shell is movably connected with sealing plug, the left side fixed mounting of sampling shell bottom has liquid outlet pipe, the bottom of the sampling shell is fixedly connected with base, the inside of the base is provided with efficient sampling pump body;The left side fixed mounting of the sampling shell has liquid inlet pipe.This sampler for battery-grade nickel sulfate solution, by being provided with first filter plate, second filter plate, third filter plate and efficient sampling pump body, it is convenient to carry out multistage filtration sampling storage to battery-grade nickel sulfate solution, and spliced pipe, sealing cover and fastening bolt are arranged, it is convenient to carry out disassembly maintenance or replacement to filter assembly and liquid suction tube, ensure that equipment normal operation, and sealing plug and inner shell are arranged, it is convenient to realize that sampler has sealing and protection effect.

The chemical plugging device comprises a visual detection module, a sealing connection module, a flushing module and a plugging module, and through modular design and flexible material innovation, accurate detection, efficient flushing and targeted plugging of a wing valve are achieved; according to the method, the pertinence and reliability of the plugging operation are remarkably improved through the closed-loop process of pressure release, visual detection, gas-liquid collaborative flushing, squeezing and plugging, and sealing checking after coagulation in combination with gas channeling speed dynamic regulation and control and a multi-slug collaborative injection strategy. The method is suitable for a pressurized gas well in which normal-temperature and normal-pressure well cementation cement does not return to a wellhead and an annulus has a treatment space, a formation fluid upward-flowing channel can be effectively plugged, the annulus plugging operation efficiency and success rate are improved, and safe production of the gas well is guaranteed.