28results about How to "Improve the blocking effect" patented technology

The application belongs to the technical field of new energy automobile charging, and particularly relates to a direct-current split type charging host, aiming at the problems of inconvenient transportation of the existing split type host, and poor protection effect on the charging terminal, and the following scheme is proposed, which comprises a mounting box, a base is fixedly installed at the bottom of the mounting box, two movable doors are hingedly connected to one side of the mounting box, and a storage bin is fixedly installed at the top of the mounting box; a first charging terminal and a second charging terminal are arranged on the two sides of the mounting box, in the application, the split type charging host can be combined and installed with at most two charging terminals, the split type charging host can be conveniently transported, and the use of the charging state is not affected, and meanwhile, when the charging terminals are installed on the two sides of the charging host, the charging terminals can be continuously shielded, the tarpaulin for shielding can be synchronously extended with the extension of the terminals, and the long-term use of the charging terminals is facilitated.

The utility model relates to the technical field of sealing gasket, especially to a double-layer composite sealing gasket, which comprises a metal ring, an annular cavity is arranged on the inner side of the metal ring, a rubber ring is fixed in the annular cavity of the metal ring, an annular deep groove and an annular shallow groove are arranged on the inner circumferential surface of the rubber ring, the annular deep groove and the annular shallow groove are connected through at least one sawtooth groove, the depth of the groove bottom of the sawtooth groove gradually decreases from the annular deep groove to the annular shallow groove, compared with the prior art, the composite structure of the metal ring and the rubber ring, combined with the unique annular deep groove, annular shallow groove and sawtooth groove on the inner circumferential surface of the rubber ring, can effectively improve the sealing performance of the sealing gasket, the annular deep groove and the annular shallow groove can form multiple sealing lines during the sealing process, and the blocking ability of the fluid is enhanced, the uniform distribution of pressure is facilitated by the through design of the sawtooth groove, stress concentration is reduced, and the pressure resistance and wear resistance of the sealing gasket are improved.

The utility model discloses a kind of refining machine oil agent circulation systems for fiber production involve fiber production technical field, including refiner, oil agent circulation tank and membrane filtration device, the bottom of the refiner is provided with liquid collecting tank, and the circulating liquid of liquid collecting tank is connected with oil agent circulation tank, and oil agent circulation tank is connected with membrane filtration device and oiling device respectively, and the circulating liquid of oil agent outlet of membrane filtration device is connected with oil agent circulation tank, the refining machine oil agent circulation system for fiber production is also provided with external processor, liquid level transmitter is arranged in the oil agent circulation tank, and oil agent circulation pump is arranged in the liquid outlet of oil agent circulation tank, and solenoid valve I is arranged in the inlet of membrane filtration device;By optimizing oil agent process, improve fiber oiling rate uniformity, make fiber physical property more stable, product strength and elongation rate variation coefficient reduce, significantly improve product quality.Product quality improvement helps company to develop high-end market, improve product added value, enhance market competitiveness.

The utility model relates to numerical control machine tool protection technical field has solved to the work piece processing, its splashing work piece slag is easy to enter personnel eye department, causes the injury to personnel eye department, and after work piece processing is completed, the work piece is taken out and is inconvenient to the problem of the internal cleaning of numerical control machine tool. Specifically a kind of numerical control machine tool protection mechanism, including numerical control machine tool, the both sides in numerical control machine tool are fixedly installed with guide rail, the both sides of opposite in numerical control machine tool are all set with sliding slot, the inside of guide rail and sliding slot is all slidably connected with protection mechanism, the inner bottom of numerical control machine tool is fixedly installed with several telescopic rods, spring is sleeved on the surface of telescopic rod, the top of telescopic rod is fixedly installed with support plate, the surface of support plate is fixedly installed with locating plate, the surface of locating plate is fixedly installed with buffer pad, protection mechanism includes electric push rod fixedly installed in the both sides of numerical control machine tool, and the output of electric push rod is fixedly installed with moving frame.

The utility model discloses a kind of gob coalbed methane rapid plugging devices, it is related to gas layer plugging technical field, including directional drilling rig and mixing box, mixing box is used to store filling material, support frame carries out stirring to filling material in mixing box, improve the injection efficiency of filling material, improve the plugging speed to gas layer, and support frame quantitative injection retarder or accelerator in mixing box changes the coagulation speed of filling material, improve the plugging effect to gas layer, while the filling material in mixing box is stirred, the inside wall of mixing box is scraped, avoid that filling material sticks in the inside wall of mixing box, the utility model improves the speed and efficiency of plugging to gas layer.

The invention belongs to the technical field of oilfield chemistry, and relates to a gas reservoir crack mixed temporary plugging agent and a preparation method thereof. The temporary plugging agent is prepared from the following components in parts by mass: a water-soluble high-molecular polymer, heat-resistant starch, degradable fibers, a strength improver and water, the strength improver is montmorillonite powder wrapped by polyvinyl alcohol. The water-soluble high-molecular polymer is matched with the degradable fibers and the starch particles to be interwoven and connected to form a net-shaped structure, so that the pressure resistance is improved, and the temporary plugging effect is improved; according to the strength improving agent, montmorillonite powder wrapped by polyvinyl alcohol is added, in the process that the temporary plugging agent still flows downwards, the polyvinyl alcohol on the surface of the montmorillonite powder is melted along with decline and temperature rise, so that the montmorillonite powder leaks out and absorbs water again to swell, and the strength of the temporary plugging agent is improved. And montmorillonite powder wrapped by heat-resistant starch-degradable fiber-polyvinyl alcohol is cross-linked to form a rich three-dimensional system structure as a climbing skeleton, so that the temporary plugging agent can temporarily plug cracks at positions needing temporary plugging.

This invention discloses an organic compound, its preparation method, and an organic electroluminescent device, relating to the field of luminescent materials technology. The chemical formulas I-1 and I-2 provided by this invention are fluorene compounds with a unique fluorene structure. As a light-emitting auxiliary layer in a red organic electroluminescent device, this type of compound can reduce the potential barrier between the hole transport layer and the light-emitting layer, lower the driving voltage of the organic electroluminescent device, further improve the hole transport rate and electron blocking ability, and increase the charge balance between holes and electrons within the light-emitting layer. This allows light to be formed effectively within the light-emitting layer, rather than on the surface of the hole transport layer, thereby greatly improving the device's lifetime and luminous efficiency.

This invention provides an antibody targeting the human interleukin-6 receptor, its applications, and products, belonging to the field of protein engineering technology. The antibody provided by this invention comprises: any one or more of HCDR1, HCDR2, and HCDR3 with sequences as shown in SEQ ID NO.1, SEQ ID NO.2, and SEQ ID NO.3, respectively, and / or any one or more of LCDR1, LCDR2, and LCDR3 with sequences as shown in SEQ ID NO.4, SEQ ID NO.5, and SEQ ID NO.6, respectively. The antibody targeting the human interleukin-6 receptor provided by this invention has high affinity, good blocking effect, and excellent safety.

This invention provides a blocking separation structure, a blocking separation device, and a turret-type testing equipment. The turret-type testing equipment includes a feeding structure and a blocking separation device. The blocking separation device is installed at the front end of the feeding structure and includes a feeding structure and a blocking separation structure. The blocking separation structure includes a fixed bracket, a movable bracket, first and second adjusting fixing components, and a pressing component connected in sequence. The fixed bracket is connected to the feeding structure. The movable bracket can rotate up and down around a rotating shaft, thereby driving the pressing component to rise or fall. When the pressing component rises, it releases the product; when it falls, it presses down on the product. The first adjusting fixing component can be adjusted in a first direction, the second adjusting fixing component can be adjusted in a second direction, and the pressing component can be adjusted in its rising and falling direction. This invention simplifies the product blocking separation structure, reduces debugging difficulty, and provides better blocking effect and longer service life.

This invention relates to an oil-based drilling fluid plugging agent and its preparation method, comprising granular materials made of the following components by weight percentage: asphalt powder: 15-28 wt%; organic clay: 6-16 wt%; rock fiber: 25-40 wt%; nano-SiO2: 5-12 wt%; sepiolite: 8-15 wt%; elastic graphite: 8-18 wt%; and polyurethane (TPU) powder particles: 10-20 wt%. This invention features good compatibility, high efficiency, and excellent plugging effect. It can repair formation defects in the wellbore, prevent wellbore leakage, enhance the retention and plugging effect of oil-based drilling fluid in formation microfractures, improve wellbore stability, and effectively plug and strengthen the wellbore.

The present application provides a colloid bitumen dispersant and its preparation method and application, and belongs to the technical field of oil field exploitation. It comprises the following components: dispersant mother liquor containing hyperbranched complex 60-100 parts, solvent 20-30 parts, sodium dodecyl benzene sulfonate 2-5 parts, alpha-alkyl sodium sulfonate 1-3 parts, ethylenediaminetetraacetic acid disodium 2-5 parts, low carbon alcohol 5-15 parts, antioxidant 0.5-2 parts. Through the design of complex structure, the construction of green solvent system and the innovative synthesis process, the present application realizes the synchronous collapse of colloid hydrogen bond network and asphaltene pi-pi accumulation, significantly reduces the dispersant dosage and preparation energy consumption, and has broad application prospect.

This utility model discloses an impedance-gradient composite honeycomb sandwich integrated sound absorption and insulation structure, including an upper surface plate, a lower surface plate, and a composite honeycomb sandwich layer located between the upper and lower surface plates. The composite honeycomb sandwich layer is composed of multiple honeycomb units of different specifications, with the pore size of the honeycomb units gradually decreasing from near the upper surface plate to near the lower surface plate. This structure achieves impedance gradation through the design of the impedance-gradient composite honeycomb sandwich layer, which can gradually adapt to impedance changes, reduce sound wave reflection loss at the interface, and allow more sound waves to enter the interior of the structure and be absorbed and consumed, significantly improving sound absorption and insulation performance. Furthermore, the different materials work together to fully utilize their respective sound absorption and insulation advantages, forming a good synergistic effect and further improving the overall noise reduction effect. At the same time, a positioning structure is designed between the upper and lower surface plates and the composite honeycomb sandwich layer to ensure the stability of the subsequent overall adhesive assembly.

The utility model discloses a novel traffic anti -collision road cone, including base and taper column, base is the bottom of a ship or T shape, bottom is equipped with ground -gripping antiskid taper angle, and when vehicle collision can be inclined and hoisted chassis to make it damage, and the driving is blocked, and the taper column is equipped with transverse pull column and anti -collision angle with connecting hole, and a plurality of road cones can be connected in series through the connecting piece, and form the stable blocking barrier, and the impact force is dispersed, compared with the defect that traditional road cone relies on plane friction, is easily pushed and cannot block in essence, the product changes the mechanical interaction mode, and the special base structure actively hinders the vehicle advance, and the overall protection ability is enhanced simultaneously in series design, and effectively cope with the violent card scene of vehicle, and reliable safety protection is provided for the area such as highway, construction section, the safety and effectiveness of traffic management are improved.

The utility model belongs to pipeline construction technical field discloses a staggered flange plugging device, including sealing assembly, glue injection subassembly and locking assembly, sealing assembly includes sealing band, sealing band is around the outside circumference of two mutually connected flanges and sets up, the side surface of sealing band towards flange and the outside circumference side surface of flange abut, the position of the joint of two flanges is provided with glue injection hole on sealing band, one end of glue injection hole and the gap between two flanges intercommunication, the other end of glue injection hole penetrates sealing band along the thickness direction of sealing band, the one end of glue injection hole away from flange is detachably connected with sealing sleeve, the glue injection head of glue injection subassembly is connected with glue injection hole, is provided with the chamber for placing sealant in glue injection subassembly, and the chamber is connected with glue injection head, the both ends of sealing band along its length direction are connected with locking assembly, and locking assembly can tighten sealing band to make sealing band abut tightly the outside circumference side surface of flange. The device can effectively realize the effect of plugging and fixing to two staggered flanges.

This utility model belongs to the field of motion CNC lathe technology, specifically a movable motion CNC lathe, including a motion CNC lathe body; a hydraulic telescopic rod is installed at the bottom of the motion CNC lathe body; a stabilizing plate is fixedly connected to the side wall of the output end of the hydraulic telescopic rod; a hub cover is fixedly connected to the output end of the hydraulic telescopic rod; the position of the stabilizing plate and the hub cover can be adjusted by the setting of the hydraulic telescopic rod; the gap of the extension of the hydraulic telescopic rod can be blocked by the setting of the blocking component; the height of the motion CNC lathe body can be easily adjusted to meet different height adjustment needs by the setting of the moving wheels; the protective component can block external impurities when the moving wheels rotate, reducing the impact of external impurities on the movement of the motion CNC lathe body, thus enhancing the portability of the movable motion CNC lathe.

This invention provides a pressurized sealing device and method for slurry transport pipelines. The sealing device includes a repair pipe, two sets of drive systems disposed at both ends of the repair pipe, and two sets of pipe-clamping and fixing mechanisms. The repair pipe is fitted over the leak area of ​​the damaged pipe, and at least two sets of sealing strips are provided between the repair pipe and the damaged pipe. The leak area of ​​the damaged pipe to be sealed is located between at least two sets of sealing strips. The drive system includes multiple sets of second hydraulic cylinders, each set of second hydraulic cylinders having one end hinged to a pipe-clamping frame and the other end hinged to a corresponding force-bearing seat on the repair pipe. The two sets of pipe-clamping and fixing mechanisms provide positioning gripping points on both sides of the leak point in the slurry transport pipeline, providing force points for the second hydraulic cylinders. The repair pipe covers the damaged slurry transport pipeline, and the sealing operation of the pipeline transport system is completed under the drive of the second hydraulic cylinders. This invention can complete pressurized sealing operations of slurry transport pipelines, preventing pipeline blockage and ensuring the safety of the slurry transport system.

This invention relates to a method for preparing and applying a core-shell structured silica plugging agent with a rigid inner structure and a flexible outer structure for marine drilling fluids, belonging to the field of deepwater oil and gas drilling. This invention uses N-vinyl-2-pyrrolidone, dimethyl diallyl ammonium chloride, acrylamide, and 2-acrylamide-2-methylpropanesulfonic acid polymerized and grafted onto the surface of nano-silica to form a core-shell structured silica plugging agent with a rigid inner structure and a flexible outer structure. By utilizing the rigid plugging of nanomaterials and the flexible plugging of polymer deformation, this method effectively seals the micro- and nano-pores of shale and mudstone, thereby maintaining wellbore stability. Simultaneously, it effectively inhibits the secondary formation of hydrates, improving the safety and efficiency of deepwater drilling. Furthermore, the plugging agent of this invention reduces the need for large amounts of thermodynamic inhibitors, saving costs and possessing environmentally friendly properties.

This utility model discloses a refrigerator with an ice-making mechanism, relating to the technical field of refrigerator ice-making mechanisms. It includes a door, a sliding rail on the door surface, an ice tray engaged inside the rail, a cavity inside the ice tray, a bolt hole on the surface of the ice tray, a rubber cover covering the ice tray surface, a positioning plug on the side of the rubber cover near the bolt hole, and a limiting cover slidably connected to the surface of the ice tray. This utility model, by using a sliding rail on the refrigerator door surface and connecting the ice tray with the rail, allows the ice tray to be stored between the refrigerator door and the interior storage area, without occupying excessive storage space. Furthermore, the ice tray itself is sealed by the rubber cover, and the limiting cover covers the outside of the rubber cover. The rubber cover seals the ice tray, and the limiting cover optimizes the sealing effect, preventing liquid leakage. The door surface area is sufficient to accommodate multiple ice trays via the sliding rail.

This invention provides a polymer gel particle, its preparation method, and its application. The polymer gel particle consists of a hydrophilic polymer backbone and a lipophilic polymer interpenetrating to form a semi-interpenetrating network structure. The hydrophilic polymer backbone is spherical with a rough surface and uniformly distributed porous structure, with interconnected pores. The polymer gel particle of this invention possesses both oil / water swelling capabilities and exhibits excellent swelling and plugging performance in both water-based drilling fluids and / or water-based completion fluids, as well as oil-based drilling fluids and / or oil-based completion fluids. It offers advantages such as good plugging effect and low filtration loss, which is of great significance for developing new multifunctional drilling fluids and / or completion fluids and ensuring energy exploration and development.

This invention belongs to the field of geological disaster prevention technology and discloses a spatial blocking planning method for geological disaster chains in mountainous cities based on adaptability analysis and ecological synergy. The specific steps are as follows: Step 1: Multi-source basic data collection for mountainous cities. In accordance with the requirement of full coverage of the planning research scope, comprehensive basic data related to geological disaster chains, geological conditions, meteorological and hydrological data, engineering conditions, and ecological background data are collected within the scope of mountainous cities. By constructing an adaptability analysis evaluation system, the regional engineering construction conditions, ecological background characteristics, and disaster chain blocking needs can be accurately connected, avoiding the mismatch between measures and actual conditions caused by relying on subjective experience. Through the collaborative design of engineering protection measures and ecological restoration methods, the strength of disaster chain source control, path interception, and end protection is ensured by relying on engineering facilities, while ensuring the regional ecological integrity through native vegetation planting and ecosystem maintenance.

This invention discloses a recycled mortar concrete, its preparation method, and its application, belonging to the technical field of recycled mortar concrete. The method involves modifying activated hydrophobic aerogel powder with 3-(methacryloyloxy)propyltrimethoxysilane, then incorporating the resulting modified aerogel powder containing double bond segments into a gel system for crosslinking. Water is added for dilution, resulting in a modified liquid with a solid content of 3-4%. Recycled aggregate is impregnated with the modified liquid to obtain modified recycled aggregate. The modified recycled aggregate, silicate cement, fly ash, quartz sand, water-reducing agent, and water are mixed to obtain recycled mortar concrete. The modified recycled aggregate in the recycled mortar concrete exhibits a crosslinked network on its surface, which acts as a thickener and retarder, regulating the fluidity of the concrete. Furthermore, the hydrophobic modified aerogel powder and crosslinked network seal and strengthen the pores of the recycled aggregate, blocking moisture and improving the freeze-thaw resistance and compressive strength of the recycled mortar concrete.

This invention belongs to the field of drilling engineering plugging agent preparation technology, and particularly relates to a plugging agent for shale, its preparation method and application. The plugging agent preparation method includes (1) mixing modified silica with a first monomer mixture and carrying out a first reaction to obtain a first intermediate product; (2) adding a second monomer mixture to the first intermediate product and carrying out a second reaction to obtain a core-shell polymer; wherein, the ratio of the total mass of the first monomer mixture and the second monomer mixture to the mass of the modified silica is 100:(10-40); (3) mixing the core-shell polymer with sodium methoxide and carrying out an alcoholysis reaction. This invention achieves synergistic effect of plugging and chemical stability by constructing a multifunctional shell rich in cations, amide groups, hydroxyl groups and ester groups on the surface of modified silica. The dual mechanism of electrostatic attraction and hydrogen bonding enables the plugging agent to form a strong adsorption and difficult desorption firm plugging layer on the shale surface, resulting in good plugging effect.

This utility model relates to the field of textile technology and discloses a weft insertion rapier for anti-loosening yarn on a rapier loom. It includes a rapier housing, with a rapier hook fixedly mounted on the outer wall of the housing. A placement groove is formed on the inner wall of the housing, and a small electric push rod is fixedly mounted on the inner wall of the groove. A limiting block is fixedly mounted on the pushing end of the small electric push rod. During installation, the operator moves the yarn clamp and connecting block towards the inner wall of the limiting groove. After the connecting block reaches the end of the limiting groove, it moves a sliding block towards the inner wall of the limiting groove. As the sliding block moves, it engages a locking block against the inner wall of the locking groove, limiting the connection block. Then, the operator moves a bolt towards the inner wall of the threaded groove for threaded connection, allowing for quick replacement of the yarn clamp.

The application discloses a socket waterproof structure and belongs to the technical field of sockets, which comprises a panel, a base detachably connected with the panel, a waterproof part and a protection assembly. The waterproof part is arranged on the panel, and a slot is formed in the waterproof part. The slot is in a closed state when a plug pin is not inserted. The protection assembly is arranged on the base. The slot is always in a closed state when the plug pin is not inserted, thereby being capable of blocking the socket and forming a first sealing protection. In this way, the path of liquid entering the base through the socket can be blocked, liquid can be effectively prevented from penetrating into the base, and the waterproof performance of the socket is improved. The protection assembly can form double protection cooperation with the waterproof part, the blocking capacity of liquid invasion is further improved, the waterproof reliability of the socket is improved, the safety hazards such as short circuit and electric leakage caused by liquid invasion are avoided, the electric safety is effectively ensured, and the use safety of the socket is improved.

The utility model discloses a kind of anti-willow catkin structures suitable for V-shaped integrated fluorine pump type condenser, including filter screen upper baffle, filter screen lower baffle and air filter screen, filter screen upper baffle includes first horizontal plate and first vertical plate, first vertical plate top surface is vertically connected in the side limit of first horizontal plate bottom surface, and a plurality of mounting holes are set up on first horizontal plate for being installed on heat exchanger top plate;Filter screen lower baffle includes second horizontal plate and second vertical plate and inclined plate respectively located in the side limit of second horizontal plate, and second vertical plate bottom surface is vertically connected in the top surface of second horizontal plate, and inclined plate top surface is connected in the bottom surface of second horizontal plate, the included angle between inclined plate and second horizontal plate is 70 °-75 °, and a plurality of mounting holes are set up on second vertical plate for being installed on heat exchanger bottom plate.This anti-willow catkin structure has the advantage that can effectively prevent willow catkin from adhering on condenser.