30results about How to "Promote prolapse" patented technology

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

The utility model relates to a cup cover which comprises a polygonal cover body, an annular buckle structure is arranged on the inner side wall of the polygonal cover body in an inward protruding mode, the annular buckle structure comprises a plurality of first buckle structures and a plurality of second buckle structures, the first buckle structures are arranged corresponding to a plurality of corner positions of the polygonal cover body respectively, and the second buckle structures are arranged corresponding to a plurality of corner positions of the polygonal cover body respectively. The height of the first buckle structure protruding out of the inner side wall of the polygonal cover body is smaller than the height of the second buckle structure protruding out of the inner side wall of the polygonal cover body. The center of the top wall of the polygonal cover body is sunken downwards to form a sunken structure, the outer ring of the top wall of the polygonal cover body is sunken upwards to form an outer ring protruding structure surrounding the periphery of the sunken structure, the outer ring protruding structure comprises multiple sets of reinforcing assemblies, and each set of reinforcing assembly comprises a first protrusion and a second protrusion. At least part of the second protrusion is arranged on the periphery of at least part of the first protrusion in a surrounding mode. The cup cover solves the problems that an existing cup cover is soft and not easy to open.

This invention provides a bracket, a heat exchange component, and an air conditioner. The bracket is disposed on a heat exchanger and is used to fix the sterilization component. The bracket includes: a first bracket; a second bracket; and a connecting rod, which includes a first end and a second end, the first end being connected to the first bracket and the second end being connected to the second bracket. The first bracket is used to rotate around the first end, and the second bracket is used to rotate around the second end. The problem solved by this invention is how to make the sterilization bracket usable in different models of air conditioners. Compared with the prior art, the technical effect achieved by this invention is that by rotating the first and second brackets, the overall length of the bracket is changed, thereby enabling the bracket to adapt to different models of air conditioners.

The utility model discloses a single row ball bearing relates to bearing field, and its technical scheme main points are: including inner ring and outer ring, is provided with retainer and ball between inner ring and outer ring, and the retainer includes two combination rings, and the installation hole and the clamping hole are all seted up on two combination rings, and the clamping piece is slidably connected in the installation hole, and one end of clamping piece is seted up with the deformation groove, and the clamping piece is fixedly connected with the clamping wing of both sides in the deformation groove. When clamping piece is clamped into the clamping hole, the clamping wing is in contact with one side of the combination ring, which ensures the stability between the two combination rings. When people need to separate the two combination rings, they only need to deform the two clamping wings into the deformation groove, so that the two clamping wings are retracted into the clamping hole. At this time, people can slide the clamping piece to make the clamping piece and the clamping hole separate. The above setting facilitates people to replace the ball in the bearing, thereby ensuring the service life of the bearing as a whole.

The utility model relates to a battery pop-up device based on a lateral battery replacement new energy vehicle, and belongs to the technical field of new energy vehicle batteries. Comprising a pop-up mechanism, the pop-up mechanism comprises a gas generator, the new energy vehicle is provided with a battery bin, one end of a bin frame of the battery bin is provided with a bin inlet and outlet, the other end of the bin frame is provided with a bin end cover, and the gas generator is arranged on the bin end cover. When the battery is inserted in place in the battery bin, a closed space can be formed between the inner end of the battery and the battery bin, and gas generated by combustion of a gas generating agent in the gas generator can act on the inner end of the battery to push the battery out of the battery bin. The gas generator is simple in structure and convenient to operate, when the battery is abnormal, the gas generator can instantly generate a large amount of gas, the battery can obtain enough kinetic energy, the battery is separated from the new energy vehicle, the risk that the battery explodes or burns on the new energy vehicle is eliminated, and therefore the personal and property safety of passengers is guaranteed.

The invention discloses a method for preparing a sodium-ion battery hard carbon negative electrode material from sulfur-doped modified bamboo-based biomass and application of the sodium-ion battery hard carbon negative electrode material, and belongs to the technical field of sodium-ion battery negative electrode material preparation. The bamboo-based biomass is used as a raw material, a sulfur source is used as a modifier, water is used as a solvent, and the hard carbon negative electrode material for the sodium ion battery is obtained through mixing, drying, medium and low temperature pretreatment and high temperature carbonization. According to the preparation method disclosed by the invention, S has a relatively large covalent radius, so that the carbon layer spacing can be obviously enlarged, insertion, separation and diffusion of sodium ions are facilitated, and meanwhile, an active C-S bond is added, so that additional sulfur group redox active sites are provided; and the process is simple, the cost is low, and the sodium ion battery has the characteristics of high capacity and high rate performance.

This utility model discloses a palladium-on-carbon filter press device for the production of ritonavir intermediate BDH, belonging to the technical field of filter press devices. It includes a filter press unit, an adjustment unit, and a processing unit. The filter press unit includes a plate and frame frame for support, with a pressure plate slidably installed inside the frame. A pressure block is arranged parallel to one side of the pressure plate. The adjustment unit includes lugs on both sides of the pressure plate and the pressure block. Each lug has a positioning hole at its connecting end to the pressure block facing the pressure plate, and an auxiliary groove is provided below the positioning hole. A positioning tube is fixedly installed at the connecting end of the lug facing the auxiliary groove, and a connecting chain is fixedly installed between the positioning tube and the positioning hole. The processing unit includes a collection plate located below the plate and frame frame. This utility model has the advantage of separating the pressure plates without manual operation, thus facilitating the removal of the filter cake between the pressure plates.

The invention belongs to the technical field of building detection, and discloses an assembly type building engineering quality detection device which comprises a base, a sliding frame and a sliding seat, a square pipe is arranged at the bottom of the sliding seat, a knocking hammer is slidably arranged in the square pipe, a connecting frame is horizontally and slidably arranged on one side of the square pipe, and a sliding block is slidably arranged on the connecting frame in the length direction of the square pipe. A compactness detector is arranged on the sliding block, and a driving assembly for driving the sliding block to slide to enable the compactness detector to be tightly attached to the wall surface and driving the knocking hammer to knock the wall surface is further arranged on the square pipe. Multi-direction movement and accurate positioning of the compactness detector in the space are realized, and accurate operation of quality detection of the fabricated building wall surface is further achieved; compared with a mode of manually knocking by a hammer by a worker, the mechanical structure of the device can keep the hammering force of the knocking hammer uniform and consistent, and meanwhile, it is ensured that the compactness detector can be stably and reliably attached to the wall surface for detection.

The utility model discloses a high accuracy detection equipment with feeding mechanism, including base and detection seat, the top of base is fixed with detection seat, one side of detection seat is provided with the stand, the middle part welding of stand has a plurality of layers of partition board, the top of partition board places the raw board. This high accuracy detection equipment with feeding mechanism drives first screw rod to rotate through first motor, drives first sliding block to move along first sliding slot transversely, realizes the positioning of feeding mechanism in horizontal direction, drives second sliding block to move along second sliding slot vertically through the rotation of second screw rod driven by second motor, realizes accurate material taking and material discharging of feeding plate in vertical direction in combination with the telescopic action of electric telescopic link, can take out raw board from the partition board of stand automatically, and accurate conveying to detection seat carries out high accuracy detection, significantly improves detection efficiency and automation level, reduces manual intervention error.

The utility model discloses a hair sticking device convenient to replace a hair sticking roller, which comprises a handle, a U-shaped support and the hair sticking roller, the U-shaped support comprises a cross rod and side plates positioned on two sides of the cross rod, the two side plates and the cross rod are integrally U-shaped, the handle is connected with the cross rod, the side plates are provided with shaft holes, the inner wall of at least one side plate is provided with a guide slope, and the guide slope is arranged on the inner wall of the guide slope. One end of the guide slope is connected with the shaft hole, and the other end of the guide slope inclines towards one side of the outer wall of the side plate and extends to the edge of the side plate to form a notch; connecting seats are detachably arranged at the two ends of the hair collecting roller, rotating shafts are arranged on the connecting seats, at least one rotating shaft is an elastic shaft, and the rotating shafts can be installed in the shaft holes through the guide slopes by pressing the elastic shafts so that the hair collecting roller can rotate freely or the rotating shafts can be detached from the shaft holes so that the hair collecting roller can be replaced. According to the hair sticking device, the hair sticking roller can be conveniently detached for replacement and installation without detaching the structure of the hair sticking device.

The application discloses an up-and-down integrated shopping cart escalator, which comprises a traction track, a driving chain arranged on the traction track, a traction unit connected to the driving chain and a shopping cart connected to the traction unit, and a rotating sleeve arranged on the traction unit and connected to a cross rod of the shopping cart. When the shopping cart is connected to the traction unit, the shopping cart can rotate around the cross rod. The up-and-down integrated shopping cart escalator can improve the fixing effect of the shopping cart, adopt the same traction mode on the up-and-down escalator during installation, reduce the production cost and facilitate user use.

The utility model relates to a butt-joint interlocking structure for a mother-son bed frame, which comprises a mother bed structure and a son bed structure, and one side of the lower part of the mother bed structure is provided with an inserting gap; a bayonet socket is arranged at the lower part of the sub-bed structure, and the bayonet socket of the sub-bed structure can be inserted into the insertion notch; at least two self-locking structures are arranged side by side on the side wall, butted with the bayonet socket, of the splicing gap, each self-locking structure comprises a butting rotating shaft, a hook arm and a hooking roller, the butting rotating shaft is rotatably mounted on the splicing gap and is fixedly butted with one end of the hook arm, and the hooking roller is fixedly butted with the other end of the hook arm. The other end of the hook arm is rotatably provided with a hook connection rolling wheel, the bayonet socket is provided with a hook foot structure which is in butt joint with the hook connection rolling wheel, and a torsion spring structure is arranged between the butt joint rotating shaft and the hook arm. The child bed has the advantages of being high in structural strength, good in locking effect, capable of reducing potential safety hazards caused by accidental disengagement, convenient to rapidly disengage from and be inserted into the child bed and the like.

The utility model discloses an injection mold of plastic bucket relates to plastic bucket injection technology field. The utility model discloses a casing: the casing is provided with drive assembly, moving assembly, movable die assembly, limiting component and ejection assembly respectively, the utility model discloses a drive assembly drive output end installation's moving assembly moves, when moving assembly moves, can make its drive top end installation's movable die assembly moves to make movable die assembly drive injection complete's plastic bucket moves, when movable die assembly moves, can make its drive inside slide setting's ejection assembly moves, when ejection assembly moves, can make its slowly moves upward, and then can make its plastic bucket on the surface of movable die assembly upward ejection, thereby convenient plastic bucket is from the surface of movable die assembly and comes off, and then convenient to plastic bucket carries out stripping, and it is time -saving and laborsaving relatively.

The utility model provides a secondary battery and a battery pack, the secondary battery comprises: a housing comprising a shell and a cover plate, one end of the shell is provided with an opening, the cover plate covers the opening and is connected to the shell, and the cover plate is provided with an explosion-proof valve; the electrode assembly is accommodated in the shell, and the electrode assembly comprises a tab facing the cover plate; the current collecting component is in welded connection with the tab, the current collecting component comprises a plurality of first through grooves penetrating through the current collecting component in the thickness direction of the current collecting component, the first through grooves are formed around the center of the current collecting component, and each first through groove longitudinally extends from the edge of the current collecting component in the radial direction of the current collecting component; the end, close to the center, of each first through groove is located in the projection area of the anti-explosion valve in the axial direction of the flow collecting component. According to the technical scheme, at least the exhaust efficiency under the thermal runaway condition can be improved.

The utility model provides a kind of yarn winding and peeling mechanism, belong to glass fiber processing technical field.It solves the problem of poor yarn winding effect of existing yarn winding and peeling mechanism.The yarn winding and peeling mechanism, including rack, first slide seat being slid along X direction and being arranged on rack, second slide seat being slid along Y direction and being arranged on first slide seat and third slide seat being slid along Y direction and being arranged on rack, winding structure is equipped on second slide seat, and peeling structure is equipped on third slide seat;Winding mechanism includes winding seat driven by winding motor and rotate and two winding rods oppositely arranged on winding seat, and anti-drop rod is arranged between two winding rods, and anti-drop rod cooperates with one winding rod to prevent yarn from escaping between two winding rods.When yarn enters between two winding rods, anti-drop rod acts and cooperates with one winding rod to prevent yarn from escaping, so as to improve winding effect, and make winding yarn state more compact, reduce subsequent failure rate of equipment.

The utility model relates to a die-casting mold core structure for an automobile engine valve chamber cover, which comprises a mold core structure, a sprue structure, a sprue protection seat and an exhaust block component, the sprue structure is mounted in the middle of the front side of the mold core structure, the sprue protection seat is mounted at the lower end of the sprue structure in a sleeving manner, and the exhaust block component is mounted on the sprue protection seat. Exhaust block assemblies are installed on the rear side of the mold core structure side by side, the mold core structure comprises an upper mold core structure, a lower mold core structure and a boss structure, the boss structure is arranged in the middle of the upper end face of the lower mold core structure, and a mold cavity structure is arranged between the upper mold core structure and the lower mold core structure; two longitudinal bolt mounting blocks are symmetrically mounted at the two ends above the mold core structure, hole position bolts with the lower ends inserted into the mold cavity structure are mounted at the front ends of the longitudinal bolt mounting blocks, and two exhaust block assemblies communicated with the mold cavity structure are symmetrically mounted on the rear side of the mold core structure. The utility model has the characteristics of simplifying the mould, improving the product quality, reducing the production cost and the like.

This application discloses a secondary battery and an electrical device, belonging to the field of battery technology. By controlling the mass ratio of the first lithium supplementer and the second lithium supplementer, the mass ratio of cyclic carbonate to chain carbonate in the electrolyte, the mass percentage of sulfur-containing additives in the electrolyte, and the thickness of the ceramic layer in the separator to satisfy: 0.17≤W≤11.18, this application significantly improves the gas generation problem of the secondary battery, effectively improves the cycle life of the secondary battery, and reduces the DCR.

This invention relates to the field of energy storage materials technology, specifically to a conductive polymer based on quinacridone, its preparation method, and its application. The conductive polymer based on quinacridone is shown in formula (I): (I) In formula (I), n represents the average degree of polymerization, and n ranges from 10 to 2000. The conductive polymer based on quinacridone in this invention has good solubility and can be dissolved in a solvent to form a solution. It can then be sprayed to achieve large-area processing, which simplifies the preparation process of electrode materials. Using nickel foam as a conductive substrate, the prepared energy storage color-changing material still has a high areal capacitance at high current densities and good charge-discharge stability at different current densities. Furthermore, the amount of stored energy can be determined by observing the change in electrode color, which has great application prospects in the field of supercapacitors.

The utility model discloses an arc-shaped movable jaw body of a jaw crusher, which comprises a movable jaw main body, a fixed base fixedly covers the front part of the movable jaw main body, a plurality of rows of mounting grooves are formed in the front of the fixed base, a plurality of crushing jaw plates are arranged in front of each row of mounting grooves side by side, and two sides of each crushing jaw plate are tightly adjacent to each other; matching seats are transversely fixed to the back faces of the crushing jaw plates, and the crushing jaw plates are combined in the mounting grooves in the corresponding rows in the mode that the matching seats transversely slide into the mounting grooves. The movable jaw has the beneficial effects that after the fixed base is anchored and fixed at the front part of the movable jaw main body, a plurality of rows of mounting grooves are formed in the front surface of the fixed base, so that a plurality of crushing jaw plates which are arranged side by side can be combined and arranged in each row of mounting grooves in a manner that matching seats on the back surfaces of the crushing jaw plates are in transverse sliding fit with the mounting grooves; and the crushing jaw plates at the corresponding positions can be conveniently and independently replaced subsequently according to the actual abrasion condition, and the replacement cost is reduced.

The utility model provides a mould is suitable for epoxy resin tensile test piece pouring of mu TS, including metal frame and silica gel inner bag, the top opening of metal frame, the silica gel inner bag is placed in metal frame, the metal frame includes the first frame body and the second frame body of detachable connection, a plurality of independent forming cavities are seted up on the silica gel inner bag, a plurality of the forming cavity is used for pouring forming epoxy resin test piece in, the inner wall of a plurality of forming cavities all has the non - stick coating that coats. The utility model can realize easy stripping and guarantee the size accuracy of test piece simultaneously.

The invention belongs to the technical field of preparation of positive electrode materials, and particularly relates to a high-rate sodium vanadium phosphate positive electrode material, a preparation method thereof and a battery. The method comprises the following steps: S1, dissolving ammonium metavanadate and oxalic acid in water to form a solution A; s2, performing ultrasonic dispersion on CNT in absolute ethyl alcohol to obtain a dispersion B; s3, slowly dropwise adding the dispersion B into the solution A until a stable transparent blue solution C is formed; s4, sequentially introducing sodium dihydrogen phosphate and thioacetamide into the solution C, and stirring to form viscous gel; and S5, carrying out vacuum drying on the viscous gel to obtain a precursor, then carrying out high-temperature heat treatment on the precursor under the protection of a nitrogen atmosphere, and finally putting a product subjected to high-temperature heat treatment in a liquid nitrogen atmosphere for rapid cooling to obtain the high-rate sodium vanadium phosphate positive electrode material. The material has relatively low resistance and relatively large sodium ion diffusion coefficient, so that the reversible specific capacity is highest, and the rate capability is best.

The invention belongs to the field of lithium ion batteries, and discloses a high-temperature thermal response curing electrolyte and a preparation method and application thereof.The electrolyte comprises a carbonic ester organic solvent, a lithium salt, a polymer monomer, a thermal response initiator and an accelerant, and the polymer monomer has a benzene ring and at least two glycidyl ether functional groups. An organic matter with a benzene ring and at least two glycidyl ether functional groups is adopted as a polymer monomer, the problem that an acrylate chain segment of an acrylate system is prone to fracture at high temperature is solved, the heat stability after curing is improved, the rigidity of a polymer and the insulativity after curing are improved, and the service life of the polymer is prolonged. The condition that ion transmission cannot be completely blocked after polyethylene glycol diglycidyl ether and the like are cured can be prevented, and the problems that an existing thermal response electrolyte is low in initiation temperature, insufficient in insulativity after being cured and poor in thermal stability are solved.

This invention belongs to the field of cleaning technology, specifically providing a vehicle wheel cleaning device for construction sites. It includes a soaking cleaning unit and a spray cleaning unit. The soaking tank in the soaking cleaning unit stores a certain level of cleaning fluid, sufficient to submerge the bottom of the wheel. A turbulence-inducing component is installed inside the first channel. When the impeller of the turbulence-inducing component rotates, it creates a swirling flow of cleaning fluid, flushing away the mud on the wheel, forming a simultaneous soaking and cleaning mode, which helps soften and remove hardened mud. The liquid level in the soaking tank is lower than the wheel axle height to avoid insufficient swirling force caused by excessive soaking fluid. After soaking, the vehicle enters the subsequent spray cleaning unit, where high-pressure water is used to rinse and clean the wheel surface. The combined action of the soaking and spray cleaning units solves the problems of short contact time and incomplete cleaning associated with manual washing.

A pre-filter is characterized in that the pre-filter comprises a water passing part, a filtering part and a locking part, the filtering part is communicated with the water passing part through a check valve, an action ring is arranged between the filtering part and the check valve, the action ring is provided with a valve rod and a guide rod, the valve rod drives a valve element of a water inlet valve to move, and the guide rod moves along a guide groove; the locking part is meshed with the movable rack through the rotating gear, so that the filtering part is driven to move up and down, separation and combination of the filtering part and the water passing part are realized, and meanwhile, the filtering part drives the action ring to move. The filter part is convenient to disassemble and assemble, and the filter element is convenient to replace.

This invention discloses a manufacturing process for a green composite slab, comprising the following steps: cleaning the mold surface, marking and positioning the forming mold, arranging reinforcing bars inside the forming mold, applying opposing forces to the two ends of the reinforcing bars extending out of the forming mold for positioning, pouring concrete into the forming mold for molding, and post-treatment curing. Before concrete pouring, the pressure blocks are driven upward to press against the two ends of the reinforcing bars, further achieving horizontal positioning of the reinforcing bars and reducing the phenomenon of horizontal displacement of the reinforcing bars during subsequent pouring, ultimately improving the quality of the composite slab.

This invention provides a lithium battery electrolyte containing nitrate ions, comprising an organic solvent, an electrolyte, and an additive. The organic solvent is an organic carbonate, and the electrolyte is a lithium salt. Based on the volume of the organic solvent, the concentration of the electrolyte is 0.5–5 mol / L. The additive is an ionic liquid, wherein the cation of the ionic liquid is one or more of pyrrolidine cations, pyridine cations, imidazole cations, and quaternary ammonium cations, and the anion of the ionic liquid is a nitrate anion. The mass content of the ionic liquid in the lithium battery electrolyte is 0.5–5%. Thus, the anion of the ionic liquid can preferentially reduce and decompose before the lithium salt to form a solution rich in LiN3 and LiN. x O y A stable, highly conductive solid electrolyte layer (SEI) for lithium oxide.

The application discloses a lithium iron phosphate positive electrode material precursor, a preparation method and device thereof and application thereof. The lithium iron phosphate positive electrode material precursor is prepared through two-step oxidation and heat preservation, and the end point of the two-step oxidation is monitored through ferrous ion concentration, which is beneficial to the removal of impurities in the lithium iron phosphate positive electrode material precursor, and raw materials from nickel iron ore can be used, so that the lithium iron phosphate positive electrode material precursor has the advantages of wide raw material sources, sufficient reaction and high product purity.

This application relates to the field of projection equipment technology, and discloses a rotating structure and a projection device. The rotating structure provided in this application includes a housing with a sliding groove; a base with a limiting groove recessed on one side, into which at least a portion of the housing is placed; a sliding block slidably disposed within the housing, passing through the sliding groove, and engaging with the base; and a first connecting member disposed within the base, fixedly connected to the sliding block to prevent the sliding block from detaching from the base. This rotating structure, with its sliding block and first connecting member, not only facilitates preventing the housing from detaching from the limiting groove, but also provides resistance to the rotation of the housing by ensuring a tight contact between the sliding block and the housing. This allows the housing to remain stably at a predetermined projection angle for an extended period after pitch adjustment, solving the problem of projection devices being unable to maintain a stable predetermined projection angle for a long time.

This utility model relates to a bed structure for a bunk bed, comprising a mother bed, a daughter bed, and a retractable guardrail. A detachable daughter bed is installed on one side of the mother bed. A retractable guardrail is installed in the middle of the side where the daughter bed and mother bed meet. The retractable guardrail includes a guardrail base, guardrail handrails, and a central support beam. The guardrail base is installed on the daughter bed, and a central support beam is installed in the middle of the guardrail base. Rotating frames extending upwards are rotatably mounted on both ends of the central support beam. The upper end of each rotating frame is rotatably connected to the middle of the guardrail handrail via a pivot. A positioning lock is installed between the lower part of one of the rotating frames and the central support beam. This utility model improves the safety of transporting the daughter bed, enables the retractable operation of the daughter bed guardrail, and avoids equipment interference when the daughter bed and mother bed are connected.