37results about How to "Easy injection" patented technology

This invention discloses an acid-triggered hydrogel plugging agent and its preparation method, comprising polyacrylamide, carboxylated tannic acid, and slow-release iron, wherein the mass ratio of polyacrylamide, carboxylated tannic acid, and slow-release iron is 10:0.03-0.06:0.005-0.01. This invention solves the problems of existing gel plugging agents being unable to remain stable in acidic environments for extended periods and being difficult to inject.

The application relates to the technical field of organic light-emitting display, and discloses a cyano-substituted aryl ring-connected triazine compound and application thereof. The cyano-substituted aryl ring-connected triazine compound has a structure as shown in formula (I), the compound provided by the application has high bond energy between atoms, good thermal stability, is conducive to solid-state stacking between molecules, is conducive to injection and migration of excitons, can effectively reduce the driving voltage of an organic electroluminescent device when used as an electron transport material, improves the light-emitting efficiency of the organic electroluminescent device, and prolongs the service life of the organic electroluminescent device. Meanwhile, the cyano substitution can adjust the energy level of the compound, the HOMO and LUMO energy levels are deepened, the compound is more matched with adjacent layers, and the device voltage is reduced. The application further provides an organic electroluminescent device and a display device containing the compound of formula (I).

This invention provides a deep moderating and displacement system suitable for fractured reservoirs, its preparation method, and its application. The moderating and displacement system comprises the following raw materials in parts by weight: 0.2-1 parts of partially hydrolyzed polyacrylamide (HPAM), 0.1-0.6 parts of polyethyleneimine (PEI), 0.2-0.4 parts of silane-modified micron-sized inorganic fibers, 0.1-0.8 parts of encapsulated citric acid, 0.02-0.2 parts of heat stabilizer, 0.02-0.1 parts of metal ion complexing agent, and 196.9-199.36 parts of water. The moderating and displacement system of this invention has low initial viscosity, small injection pressure gradient, strong shear recovery ability, significant deep plugging effect, and excellent long-term thermal stability. Furthermore, it can be adjusted according to the target reservoir temperature and the dominant fracture aperture, achieving effective adaptation to fractured reservoirs with different apertures.

An NMOS transistor and its fabrication method are disclosed. The fabrication method includes: forming a first well region in a substrate; forming a gate structure on the surface of the first well region; performing a first ion implantation on the first well region to form a first doped region and a second doped region in the first well region on both sides of the gate structure, wherein the spacing between the first doped region and the gate structure is greater than the spacing between the second doped region and the gate structure; performing a second ion implantation on the first well region after the first ion implantation to form a third doped region and a fourth doped region in the first well region on both sides of the gate structure; forming a source region in the first doped region and a drain region in the second doped region. This invention effectively reduces the gate-source capacitance (Cgs) by adjusting the directionality and dose relationship of the light doping implantation.

The application relates to the technical field of scroll tube, in particular to a sand blasting device for scroll tube experiment, which comprises a base, a first motor is installed in the base, a rotating disc is rotatably arranged on the base, an output shaft of the first motor is connected to the rotating disc, a blanking groove is arranged on the rotating disc, at least two blanking grooves are arranged at intervals, a discharge pipe is fixedly connected to the base, an air inlet pipe is connected to the peripheral wall of the discharge pipe, a suction pipe is connected to one end of the discharge pipe, one end of the suction pipe is located above the rotating disc, a pressing plate is fixedly connected to one end of the suction pipe, one side plate surface of the pressing plate is attached to the rotating disc, a blanking hopper is fixedly connected to the base, the bottom of the blanking hopper is attached to the rotating disc, a blanking opening is arranged in the bottom of the blanking hopper, the sand blasting experiment of the scroll tube can be conveniently carried out, and the experimental efficiency is improved.

This utility model relates to the technical field of sealing devices, and discloses a cable hole sealing device and a transformer box. The cable hole sealing device includes a body and a filler. The body is a flexible strip structure with a cavity inside. The body has a filling port and a groove along its length, which is suitable for engaging with the cable hole. The filler is filled into the body. This utility model bends the flexible strip structure of the body into a shape that matches the cable hole and installs it in the cable hole of the transformer box. When the filler is filled into the body, the body expands to completely seal the cable hole, effectively preventing small animals from entering the transformer box, reducing the risk of the wiring inside the transformer box being chewed by small animals, and improving the reliability of fireproof sealing. The groove engages with the edge of the cable hole to prevent the body from moving or shifting. It has the advantages of simple structure and convenient disassembly and assembly.

This invention discloses a microwave ablation electrode, relating to the field of medical device technology. It mainly includes a main needle body, whose working end can release microwave energy to achieve microwave ablation. The main needle body is equipped with a non-working end circulating cooling structure and a working end liquid injection structure. The non-working end circulating cooling structure allows a cooling medium to reach the non-working end of the main needle body to cool the non-working end and surrounding tissue, and also allows for the return flow of the cooling medium. The working end liquid injection structure allows a cooling medium to reach the working end of the main needle body to cool the working end and surrounding tissue, and also allows the cooling medium to be injected into the lesion tissue, absorbing microwave energy to form steam, achieving steam thermal ablation. This invention achieves dual ablation through steam thermal ablation and microwave ablation, improving the ablation effect, reducing the temperature of the working end of the microwave ablation electrode, and increasing the moisture content of the tissue surrounding the working end, thus reducing carbonization of the lesion tissue.

The application provides a compound of formula (I), the bond energy between atoms is high, the compound has good thermal stability, and the solid-state stacking between molecules is favorable, and the energy level between adjacent layers is suitable, which is favorable for the injection and migration of excitons. When used as an electron transport material, the compound can effectively reduce the driving voltage of an organic electroluminescent device, improve the light-emitting efficiency of the organic electroluminescent device, and prolong the service life of the organic electroluminescent device. The application also provides an organic electroluminescent device and a display device comprising the compound of formula (I).

The invention relates to the technical field of liquid injection, and discloses a filling system and a filling method.The filling system comprises a valve set, a first valve set, a second valve set, a third valve set and a fourth valve set, the first valve set and the second valve set are communicated with a first opening of a two-way hydraulic unit, and the third valve set and the fourth valve set are communicated with a second opening of the two-way hydraulic unit; the vacuumizing piece is communicated with the first channel and the third channel; the liquid injection part is communicated with the second channel and the fourth channel; the filling system has a vacuumizing state, a first liquid injection state and a second liquid injection state, in the vacuumizing state, the first channel and the third channel are opened, and the second channel and the fourth channel are closed, in the first liquid injection state, the first channel and the fourth channel are opened, and the second channel and the third channel are closed, and in the second liquid injection state, the second channel and the third channel are opened. The first channel and the fourth channel are closed. The filling system can reduce the gas amount in the two-way hydraulic unit, increase the liquid filling amount in the two-way hydraulic unit, and improve the performance and reliability.

This invention discloses a compound and its application, belonging to the field of display technology. The chemical structural formula of the compound is shown below: ; wherein, Ar1 and Ar2 are both; or, one of Ar1 and Ar2 is, and the other of Ar1 and Ar2 is a substituted or unsubstituted C6-C12 aryl, substituted or unsubstituted C3-C12 heteroaryl; Ar3 is a halogen, cyano, substituted or unsubstituted C6-C12 aryl, substituted or unsubstituted C3-C12 heteroaryl, substituted or unsubstituted C1-C60 alkyl or alkoxy; A is O, S or Se; L represents a single bond, a substituted or unsubstituted C6-C12 arylene, or a substituted or unsubstituted C3-C12 heteroarylene; Z1 to Z4 are each independently N or CR5. OLED devices prepared based on this compound have lower operating voltage, higher efficiency, and longer cycle life.

The utility model discloses a kind of powder and liquid storage sets: powder is loaded in pipe body, the lower end opening of pipe body is plugged with plug, and the upper end of pipe body and the lower end of rubber head are assembled and connected by dropper cover;Liquid is loaded in bottle body, and outer thread is opened in the side of the opening of bottle body, and internal thread is opened in the inside of bottle cap, and bottle cap can be screwed in the opening of bottle body by thread;Internal thread is opened in the inside of dropper cover, after the bottle cap on bottle body is screwed down, when plug of pipe body is removed and pipe body is inserted into bottle body, dropper cover can also be screwed in the opening of bottle body by thread.The storage set can freeze-dried powder and liquid in sales stage separate storage, when using, it is convenient to mix, not easy to spill.

This utility model discloses a non-deformable and corrosion-resistant cable chain, including an assembly plate. The assembly plate is formed by stamping and has a hinge body. The hinge body includes a hinge piece, and a concave piece is provided on one side of the upper surface of the hinge piece. A side strip is fixedly connected to the left side of the upper surface of the concave piece. This non-deformable and corrosion-resistant cable chain completes the complex structure processing in a single stamping process, significantly improving production efficiency. The precise cooperation between the side strip and the rotating shaft limits the rotation stroke, avoiding structural damage caused by excessive rotation. The arc-shaped through-hole design facilitates lubricant injection, reduces friction, extends service life, reduces assembly steps, lowers production costs, and improves product reliability.

This utility model discloses a Z-type hoist backstop device, relating to the field of hoist technology. It aims to solve the problem that the rotation of the ratchet easily causes lubricating oil to be thrown out from the moving part of the pawl mechanism, resulting in lubricating oil waste and pollution of the working environment. A protective shell is provided on the ratchet, with an oil inlet at the top and a notch for the pawl mechanism to insert into. A splash guard is provided on the top surface of the protective shell to prevent lubricating oil from splashing. By providing an oil inlet on the protective shell, lubricating oil can be easily injected into the shell. When the hoist body starts, the shaft drives the ratchet to rotate inside the protective shell, automatically absorbing lubricating oil for lubrication. This eliminates the need for frequent manual intervention, effectively reducing maintenance costs, ensuring good ratchet operation, and extending the ratchet's service life.

This utility model provides a grinding mill for pet food processing. The grinding mill includes: a support frame, on the top of which a grinding mill housing is fixedly installed, and on the top of which a top cover is installed; a grinding assembly, mounted on the top cover, used for grinding pet food raw materials; a drying mechanism, installed in the inner cavity at the bottom of the grinding mill housing, used for drying the ground powder; and a receiving assembly, installed at the bottom of the grinding mill housing. Under the action of the grinding assembly, the grinding disc drives the fixedly connected connecting shaft to rotate, which in turn drives the connecting rod fixedly connected to the side surface to rotate. The connecting rod drives a stirring rod to agitate the ground powder. Combined with the operation of the bottom electric heating plate, this facilitates powder agitation, improves the drying effect, ensures the drying performance of the powder, and prevents powder adhesion and accumulation during subsequent discharge.

The utility model relates to bearing technical field, propose a kind of sealed angular contact bearing assembly, including outer ring, the inner wall contact of outer ring is provided with ball, and ball is equiangularly arranged in the inside of outer ring, the inner ring is penetrated in the inside of outer ring, and the outer surface of inner ring is in contact with the outer surface of the other end of ball, the left side upper and lower ends of retainer are all set with oil injection hole, and the inside of oil injection hole is hingedly connected with one-way rubber valve, and the outer surface of retainer is equiangularly set with ball mouth, the inner and outer ring wall of dustproof plastic cover is respectively connected with inner sealing rubber ring and outer sealing rubber ring, the outer surface of inner ring is sleeved with retainer, the inside of oil port and retainer is in communication structure. The sealed angular contact bearing assembly, angular contact bearing is in the use process, timely heat dissipation is carried out, avoids lubricating oil emission, increases service life, and simultaneously facilitates the heat dissipation protection to bearing.

The utility model discloses a kind of feeding devices of injection molding machine, including sequentially communicating hopper, conveying pipe and material cylinder, the pressure-maintaining cavity for storing material is in the material cylinder, the pusher rod is slidably connected in the pressure-maintaining cavity, the pusher rod is connected with the hydraulic cylinder for driving it to move, the oil circuit of the hydraulic cylinder is connected with the pressure relief valve for maintaining the pressure in the pressure-maintaining cavity, by setting the pressure-maintaining cavity for storing material in the material cylinder, after raw material is conveyed to the pressure-maintaining cavity by conveying pipe, when the pressure in the pressure-maintaining cavity is too large, the pressure in the pressure-maintaining cavity can be kept constant by pressure relief valve, so as to ensure that raw material can be fully foamed in the pressure-maintaining cavity with constant pressure, guarantee the uniformity of raw material foaming, so that subsequent injection into mold forming can well guarantee the quality of product, finally effectively improve foaming uniformity and injection quality.

This invention discloses a metal-anchored carbon nanocluster catalyst, its preparation method, and its application, belonging to the field of unconventional oil and gas resource development technology. The metal-anchored carbon nanocluster catalyst provided by this invention consists of amorphous nanoparticles without pore confinement, with all active sites exposed on the surface. It can directly adsorb and activate macromolecular organic matter during in-situ pyrolysis. Its metal center is atomically anchored to a flexible carbon framework through M-N-C and M-O-C coordination bonds, maintaining high dispersibility and structural stability even at formation temperatures of 500℃. Simultaneously, this catalyst is easily and uniformly injected into oil shale reservoirs using fracturing fluid and disperses well in complex pore networks, significantly improving solid-solid catalytic interface efficiency. This catalyst lacks strong acid centers and primarily promotes selective breaking of C-C / C-H bonds through metal electron transfer, reducing the risk of formation blockage. Therefore, it has promising application prospects in in-situ pyrolysis of oil shale.

The utility model discloses a mobile storage tank for hydrogen storage relates to hydrogen storage equipment technical field. The utility model discloses a mobile storage tank for hydrogen storage, including positioning frame, outer jar and inner jar, the outer jar is inserted in the inboard of positioning frame, the inner jar is located the inboard of outer jar, and the inner jar is provided with second sleeve, and the heat exchange device is inserted in the inboard of second sleeve. The mobile storage tank for hydrogen storage, through setting heat exchange device, pressure detection meter and temperature detection meter in second sleeve, can real -time monitoring the temperature and pressure in the inside of inner jar to carry out accurate control to temperature through heat exchange device, and effectively guarantee the security and stability of hydrogen storage, avoid the accident of safety accident because of temperature and pressure anomaly, and the hydrogen sensor of inboard setting of outer jar can real -time monitoring whether the inner jar leaks hydrogen, can send the alarm in time once leaking, and it is convenient for staff to take measures in time, reduces the security risk.

This invention discloses a glycosyl carbon quantum dot oil displacement agent for unconventional oil reservoirs, its preparation method, and its application, belonging to the field of oilfield chemical technology. The preparation of the glycosyl carbon quantum dot oil displacement agent for unconventional oil reservoirs of this invention includes: adding a carbon source and a modifier to an alcohol solution, stirring to dissolve, and then carrying out a hydrothermal reaction to obtain the product; wherein the modifier is a ketoxime modifier; this method is simple, low-cost, has controllable particle size, and high yield, making it suitable for industrial application; the obtained carbon quantum dots have a high specific surface area and functional groups such as carboxyl and hydroxyl groups, which can penetrate nanopores and synergistically reduce the oil-water interfacial tension to below 5.0 mN / m; this product has outstanding high-temperature resistance and penetration ability, and can effectively penetrate into the nanopore throat structure of tight reservoirs, significantly improving oil displacement efficiency through interfacial modification, and is particularly suitable for the exploitation of unconventional nano-oil and gas resources.

This application belongs to the field of organic materials technology, and provides an organic compound with the structure shown in Formula 1. This application also provides an organic electroluminescent device and electronic device comprising this organic compound. As an organic electroluminescent layer material, this organic compound can effectively improve the luminous efficiency of the organic electroluminescent device and extend its service life.

The utility model provides a high temperature feeder with built-in oil injection channel, the lower part of the front end of the shell is equipped with a discharge port, an end plate above the discharge port is equipped with a bearing support, a high temperature bearing is installed in the bearing support, the front end of the main rod body of screw push rod is sleeved in the bearing, the outer end of bearing support is equipped with a circular port, a circular end cover is installed at the circular port through bolts, a circular cavity is formed among circular end cover, bearing and bearing support; the main rod body is a hollow rod, a metal pipe is installed in the hollow rod, the front end of the metal pipe is communicated with the circular cavity, and a sealing plug is connected to the rear end port; the utility model sets the circular cavity at the metal pipe and bearing in the screw push rod; the metal pipe can conveniently inject lubricating oil into the high temperature bearing, avoids the phenomenon that high temperature leads to lubricating oil to dry and volatilize rapidly and causes the phenomenon that the auger rotation feeding is blocked, the operation process of this oil injection mode without disassembly is convenient and fast, and the utility model can guarantee the continuous high efficiency feeding of the feeder.

The utility model discloses a kind of rapid gas replacement devices for chemical gas phase detection, including storage tank, the first pipeline is installed at the top of storage tank, pressure valve is installed on the first pipeline, one-way valve is installed on the first pipeline, three-way electromagnetic valve is installed on the one-way valve side, the second pipeline is installed at the lower end of three-way electromagnetic valve, the gas exchange mechanism of being provided with for facilitating ventilation at the lower end of second pipeline.This utility model is detected after completion, three-way electromagnetic valve closes the first pipeline and the communication side of storage tank, and the first pipeline of communication second pipeline and detection end side, then start electric push rod, drive piston block extrude storage box internal inert gas, inject it inside the first pipeline, clean the residual inside detection pipeline, prevent subsequent detection problem.

This utility model discloses a replaceable needle tail puncture guide needle, including a connecting tube. A needle body is disposed above the connecting tube, and a slot is formed at the top of the connecting tube. A slider is fixed at an equal angle to the outer side of the lower end of the needle body. A sliding groove is formed at an equal angle inside the connecting tube, and a limiting block is connected to one side of the sliding groove inside the connecting tube. With this replaceable needle tail puncture guide needle, when a different needle body needs to be replaced, medical personnel only need to forcefully rotate the needle body in the opposite direction, causing the slider to move within the sliding groove and pressing the limiting block downwards to release the limiting block. Then, pulling the needle body upwards allows for quick disassembly. Next, one end of the new needle body is inserted into the slot on the connecting tube, and the needle body is rotated in the forward direction, causing the slider to move from one side of the limiting block to the other side, thus completing the installation of the new needle body. This facilitates quick replacement of different needle bodies to meet the needs of medical personnel.

The application discloses a water control blocking agent for edge and bottom water thickened oil reservoir, which is composed of the following components in percentage of the total mass of the water control blocking agent: water-soluble resin 3-40%, flexible polymer 0.1-5%, coagulant 0.01-1%, suspending agent 0.01-2%, and water as the balance. The application also discloses a preparation method of the water control blocking agent for edge and bottom water thickened oil reservoir, which comprises the following steps: (1) pouring water into a reaction container according to the formula, and then sequentially adding water-soluble resin, suspending agent, oxygen scavenger and toughening agent according to the formula, stirring for at least 20 minutes to obtain a first mixed solution; (2) adding flexible polymer to the first mixed solution according to the formula, stirring at room temperature for at least 4 hours until completely dissolved to obtain a second mixed solution; and (3) adding coagulant to the second mixed solution according to the formula, and continuing to stir for at least 30 minutes to obtain the water control blocking agent for edge and bottom water thickened oil reservoir.

The utility model relates to electrolyte injection device technical field discloses a capacitor processing is with electrolyte injection device, including fixed bolster, the bottom mounting of fixed bolster has installation shell, the inside cooperation and installation of fixed bolster has electrolyte injection mechanism main part, the bottom mounting of installation shell has the self -locking universal wheel. The utility model discloses adjustable positioning mechanism can be set up, and the positioning of the placing seat of different sizes can be quickly completed, which is beneficial to the electrolyte injection for capacitor processing, avoids the situation that the liquid injection needle scratches the shell, the liquid injection needle cannot be completely inserted into the injection inlet or is injected to be biased, reduces the problem of causing leakage or pollution, and through the setting up stable mechanism, when servo motor is fixed on the top of workbench, the L-shaped support outside servo motor lower bottom surface is pasted on the workbench, conveniently completes the connection reinforcement of servo motor and workbench, improves servo motor assembly stability.

The utility model provides a kind of heavy metal wastewater treatment device.The heavy metal wastewater treatment device includes shell, the inner wall of shell is fixedly installed with bucket body, the bottom of bucket body is fixedly installed with pipe;Filter screen cylinder for filtering heavy metal wastewater is fixedly installed on the inner wall of shell, and the filter screen cylinder is fixedly connected with the pipe;Cylinder is fixedly installed on the shell, and the cylinder is fixedly connected with the filter screen cylinder, and discharge pipe is fixedly installed on the cylinder;Stirring mechanism for treating heavy metal wastewater is assembled on the shell.The heavy metal wastewater treatment device provided by the utility model solves the technical problem that the filter plate in the existing heavy metal wastewater treatment device is easily blocked by impurities and difficult to dredge quickly, which can cause the wastewater filtration work to be unable to proceed normally.

The application discloses injectable long-acting collagen and a preparation method and application thereof, and belongs to the technical field of collagen preparation. The application solves the problems of rapid degradation and insufficient mechanical property of collagen after injection into the body, and the problem of inability to have biological safety, good biological activity and injectability. The long-acting collagen is prepared by taking methoxypolyethylene glycol active ester and collagen as raw materials. Amide reaction is caused between the methoxypolyethylene glycol active ester and lysine residues on the collagen, hydrophilic PEG is introduced on the surface of the collagen, a hydration layer is formed, biological enzymes are hindered from contacting the collagen, collagen degradation is delayed, and the single-arm structure of the methoxypolyethylene glycol active ester can avoid product agglomeration and abnormal viscosity caused by excessive cross-linking. The long-acting collagen has a long retention time in the body, has no obvious cytotoxicity, has high biological safety, and maintains cell proliferation, migration and adhesion activity and biological repair functions.

This disclosure relates to the field of solution preparation technology, and in particular to a solution preparation platform and system. The solution preparation platform includes a liquid addition module for injecting a target solution into a mixing container located at the liquid addition position, a solid material addition module for pouring a target solid material into a mixing container located at the material addition position, and a container placement module for switching the position of the mixing container between the liquid addition position and the material addition position, thereby mixing the target solid material and the target solution to form a mixture, thus realizing mechanically driven automatic mixing, replacing the traditional manual mixing method by laboratory personnel, greatly saving manpower and time, and improving solution preparation efficiency.

This utility model relates to the technical field of automotive tensioner accessories, and discloses a tensioner and lubrication structure, including a bracket. A lower guide rail is fitted onto one bottom side of the bracket. A locating pin is welded to one side of the bracket below one end of the lower guide rail, and the welding point between the locating pin and the bracket is not higher than the plane of the bracket. The lower guide rail is sleeved on the outer end of the locating pin. A baffle is integrally provided on one bottom side of the bracket. In this utility model, the lower guide rail is first sleeved on the outer end of the locating pin. The other end of the lower guide rail is limited by the baffle and the pin. A spring plate is fitted onto the bottom end of the lower guide rail, and the end of the spring plate away from the locating pin is connected to the pin. When the pin moves within the fixing groove of the baffle, the spring plate bends to buffer the pin, facilitating tensioning operations. The oil injection hole is designed on one side of the groove formed by the lower guide rail and the bracket, making it convenient to inject lubricating oil into the lower guide rail.

The invention discloses a photo-anode based on acid etching surface reconstruction and a preparation method thereof, and relates to the technical field of photoelectrochemistry. The preparation method comprises the following steps: S1, preparing a prismatic transition metal sulfide nanorod array on a cleaned conductive substrate to obtain a conductive substrate loaded with the prismatic transition metal sulfide nanorod array; and S2, acid etching is carried out on the conductive substrate loaded with the prismatic transition metal sulfide nanorod array in the step S1, the prismatic transition metal sulfide nanorod array is reconstructed into a cylindrical transition metal sulfide nanorod array, and the photo-anode based on acid etching surface reconstruction is obtained. After the prepared photoanode is subjected to acid etching surface reconstruction, the surface catalytic performance is obviously improved, the photocurrent density of an optimized sample under the bias voltage of 1.23 VRHE can reach 2.57 mA / cm < 2 > and is 2.89 times that of an original sample, and the photoanode has high photoelectrochemical performance.