38results about How to "High cost performance" patented technology

The utility model relates to a bathroom wall hanging device which comprises a wall hanging body, two parallel straight plates are arranged at the lower end of the wall hanging body, sliding grooves extending longitudinally are formed in the opposite faces between the straight plates, the depth in the sliding grooves is gradually increased from bottom to top, and a liftable ball is installed between the sliding grooves. The surface of the sphere is an uneven rough surface, and the diameter of the sphere is larger than the distance between the two straight plates. An installation groove is formed in the outer side wall of a straight plate, the width of an outer side groove opening of the installation groove is smaller than the width of the inner side groove bottom, an insertion opening of the installation groove is formed in the bottom end of the straight plate, an insertion piece is inserted into the installation groove in a matched mode, and at least two round holes used for being matched with screws are formed in the insertion piece. Compared with a traditional hook, the wall hanging device has the advantages that the fracture and deformation probability is greatly reduced, the wall hanging device does not need to depend on ultrahigh-toughness materials, the use reliability is guaranteed, meanwhile, the material cost is reduced, the product cost performance is improved, and market application and popularization are facilitated.

The utility model relates to the technical field of motorcycle accessories, and discloses a locking driving mechanism and an ignition switch assembly. The locking driving mechanism comprises a bottom plate with a shaft hole, a cover body covering the bottom plate to form a mounting cavity, a motor mounted in the cavity and provided with an output shaft with an output gear, and a telescopic rod penetrating through the shaft hole and an end driving tooth surface to be in meshing transmission with the output gear. The design abandons complex electromagnetic drive, the structure is simple, and the cost is reduced. Through combination of the motor and the telescopic rod, parts are reduced, and the manufacturing process is simplified; the modular design facilitates maintenance, improves reliability, can adapt to different ignition switch assemblies, and is flexible in application.

The utility model provides a kind of laser assembly and split device, laser assembly includes: battery;Laser has at least two kinds of working mode, the laser in different the working mode alternatively operates;And optical path system, it is arranged between the laser and the battery;Wherein, the optical path system includes conversion piece, the conversion piece has opening position and off position, the conversion piece when the laser converts different working mode, it is switched between the opening position and the off position, to form different laser light path.Such, by setting integrated laser, cooperate the conversion piece capable of converting laser light path, so that laser can use different types of laser and different laser light path when facing scribing and splitting process, to meet the requirement of scribing process and splitting process respectively, to simplify structure, reduce production cost, and improve the working efficiency of splitting device.

The utility model provides a glue spraying device for a printing linkage line, and relates to the field of printing gluing. The glue spraying device for the printing linkage line comprises a conveying frame, a gluing mechanism and a drying mechanism, the top of the conveying frame is connected with a sweeping mechanism, the sweeping mechanism comprises a sweeping brush and a scraping plate, the sweeping brush is arranged on the left side of the upper portion of the conveying frame, and the bottom of the scraping plate is attached to the top of the sweeping brush. According to the glue spraying device for the printing linkage line, a sweeping mechanism is arranged, a baffle is moved downwards to the bottom of the baffle to be attached to the bottom of a discharging opening, a controller connected with an outer box controls a motor at the top of an arc-shaped plate to be started, a motor output shaft rotates to drive a sweeping brush to rotate, and the sweeping brush rotates to drive attachments to be brought into a sweeping box through a sweeping opening and scraped away by a scraper; and the first fan drives the attachments to penetrate through the extraction pipe and fall into the collection box, so that the purpose of removing the attachments with relatively strong adhesive force is achieved, the cleaning effect of the attachments is improved, the coating coverage rate of glue is ensured, and the qualified rate of printing material processing is improved.

The invention discloses a rotary drilling all-in-one machine and a using method, and belongs to the technical field of rotary drilling, the all-in-one machine comprises a frame, a rotary platform, a slewing bearing and a drilling mechanism, and the drilling mechanism is installed on the frame through the slewing bearing and can be driven by the rotary platform to integrally and horizontally rotate; the drilling mechanism comprises a first outer slide way capable of swinging in a pitching mode, a first inner slide way arranged in the first outer slide way in a sliding mode, a second outer slide way rotationally arranged at the front end of the first inner slide way, a second inner slide way arranged in the second outer slide way in a sliding mode and a pile hammer installed on the second inner slide way. And a plurality of driving devices for driving horizontal rotation, pitching swing, two-stage stretching and retracting, tail end swing and the pile hammer to work are further arranged. Through multi-degree-of-freedom cooperative movement, large-range and multi-angle accurate positioning and flexible operation of the pile hammer in a three-dimensional space are achieved, and the multi-degree-of-freedom pile hammer has the advantages of being compact in structure, good in rigidity, convenient and fast to operate, high in capacity of adapting to complex working conditions, high in construction efficiency and the like.

A pre-hardened steel plate for a mirror-surface mold, comprising elements as follows: C: 0.28 to 0.36%, Si: 0.50 to 0.80%, Mn: 1.20 to 1.50%, P ≤ 0.020%, S ≤ 0.010%, Cr: 1.30 to 1.80%, Mo: 0.30 to 0.50%, Ni: 0.65 to 0.90%, V: 0.15 to 0.30%, H ≤ 1.5 ppm, and the balance is Fe and inevitable impurities. A pre-hardened steel plate with high hardenability for a mirror-surface mold having is obtained by using a manufacturing method comprising subjecting continuous casting billets to processes such as rolling, offline slow cooling, normalizing and tempering heat treatments. The advantages of the manufacturing method lie in that the production efficiency of continuous casting is high, the manufacturing costs are low. When not quenched-and-tempered, the hardness of the steel plate having a thickness of 20-180 mm reaches 38-42 HRC, the hardness fluctuation of the entire thickness ≤ 2 HRC, and the level of flaw detection satisfies the requirement of of level I in GB / T2970.

The utility model relates to the technical field of lifting devices, and discloses a hydraulic cantilever beam lifting device which comprises a moving trolley, a rack, an upper cover and the like. An electric heater, a temperature sensor and a water replenishing port are arranged at the bottom of the tank body; the rack is arranged on the left side of the upper surface of the mobile vehicle, and is internally provided with a hydraulic oil cylinder; the upper surface of the cross beam is provided with a stirring speed reducer, and the output end of the stirring speed reducer is connected with a stirring paddle. According to the device, the hydraulic oil cylinder is matched with the guide rod to realize stable lifting of the cross beam, the stirring speed reducer drives the stirring paddle to work, all parts of equipment operation are coordinated and smooth, lifting is stable, and vibration, abnormal sound and pause are reduced. Meanwhile, the rack body is simplified and optimized, unnecessary machining parts are removed, on the premise that the equipment performance is guaranteed, materials and labor cost are saved, the overall cost performance of the equipment is remarkably improved, and good practical value is achieved.

The utility model discloses an underground micro-infiltrating irrigation and fertilization device for a garden green land, and relates to the field of landscaping. The top protection plate, the top protection frame and the handle are arranged, reasonable structural design is combined, large-area excavation can be avoided, faults can be accurately positioned, cost is reduced, landscape damage is reduced, stable pipeline installation is achieved through the pre-buried protection frame, the pipe base and reasonable through hole layout, accurate conveying of water and fertilizer is guaranteed, the service life of the pipeline is prolonged, and the service life of the pipeline is prolonged. Good landscape fusion capability is reflected in the design of the top protection frame, the lawn and the like, attractiveness is improved, the landscape is protected, the structural strength of the device is enhanced through related reinforcing design of the pre-embedded protection frame and the top protection frame, various external force can be borne, damage is reduced, cooperative work of components is efficient, the components are reasonable in layout and tacit in cooperation, and the service life of the device is effectively prolonged through the overall design. The cost performance is improved, and reliable guarantee is provided for irrigation and fertilization of garden greenbelts.

This invention discloses a motor control method based on Hall effect elliptic correction and sector linear models, comprising: installing orthogonal Hall sensor pairs and determining elliptic correction compensation parameters through offline correction; dividing mechanical sectors and establishing a linear model representing the correspondence between electrical angles and mechanical angles for each mechanical sector; performing elliptic correction on the original output signals of the orthogonal Hall sensor pairs according to the elliptic correction compensation parameters, and calculating the real-time mechanical angles based on the elliptic-corrected output signals; querying the mechanical sector where the real-time mechanical angles are located, and calculating the corresponding real-time electrical angles according to the linear model; and generating corresponding motor control signals based on the real-time electrical angles. This invention replaces hardware precision with algorithms, resulting in extremely low hardware costs, low computational load, low processor requirements, and the ability to correct traditionally defective motors to a usable or even high-performance level, significantly improving supply chain utilization and product cost-effectiveness.

The utility model discloses an outdoor vehicle-mounted rotary stove, and belongs to the field of vehicle-mounted stoves. The stove is installed on a vehicle-mounted trunk and is composed of a first storage cabinet, a second storage cabinet and an operation area, and the operation area comprises a supporting column, a stove fire assembly and a cleaning assembly. Aiming at the problems of low firepower, poor wind resistance, inconvenience in fixation of an independent outdoor furnace end, easiness in flameout and the like of the existing special stove for the motor home, the stove adopts the design of a large-firepower furnace end and a self-contained wind shield, and has the advantages of high safety, strong practicability, multiple functions and the like. During use, cooking can be performed by connecting a power supply, a water tank and gas, and during storage, operation is performed according to an opening sequence, and a mechanical lock is used for locking after closing. Through the reasonable structural design, the cooking requirements of people for outdoor travel, camping and picnic are met, and the outdoor market competitiveness of the pickup truck is enhanced.

The invention relates to an anti-fogging self-cleaning laparoscope which is characterized in that a transparent glass sheet is fixedly arranged at the outer end of an objective lens at the far end of the laparoscope, and a closed carbon dioxide gas groove is formed in a gap between the transparent glass sheet and the objective lens; an air inlet pipeline is fixed along the inner wall of an outer tube of the laparoscope, a corresponding air inlet hole is formed in the near end of the air inlet pipeline, and the far end of the air inlet pipeline penetrates through the objective lens and extends into the carbon dioxide gas groove; a gas outlet pipeline is fixed along the inner wall of the outer tube of the laparoscope, the far end of the gas outlet pipeline extends into the carbon dioxide gas groove, and the near end of the gas outlet pipeline exhausts gas through a gas exhaust hole; and the air inlet is externally connected with a carbon dioxide air source. The laparoscope solves the technical problems that an existing laparoscope is prone to causing fogging of an objective lens and infection of tissue fluid in a minimally invasive abdominal surgery, consequently, the surgical field is blurred, and surgical operation needs to be interrupted due to the fact that a real-time processing function does not exist.

The application discloses a wireless infrared light routing communication system and method for battery pack management. The communication system is composed of a master control unit and slave control units coupled with each battery cell, and four communication modules are configured according to a networking mode. Each communication module contains an infrared transmitting end and a receiving end, and is coupled with surrounding slave control units on a wireless channel to realize full-duplex wireless light communication and form a grid-shaped light communication network among the battery cells. Light signals from the master control unit can be transmitted to target battery cells through multi-hop forwarding of adjacent battery cells as routing nodes. The slave control units of each battery cell do not need to maintain a routing table independently, but judge whether to accept a data frame or forward it through a communication module according to routing information carried in the data frame, so as to realize broadcast communication for all battery cells in the network or light routing communication for specific battery cells. The application has high path selection efficiency and flexible network coverage, and is suitable for wireless light network management of high-density battery packs.

This invention discloses a low-leakage flux asymmetric magnetic pole rotor and magnetic pole motor, comprising rotor laminations with eight magnetic pole regions uniformly arranged on the laminations. A first, second, third, and fourth permanent magnet group are sequentially repeated twice on the eight magnetic pole regions. Multiple identical rotor laminations are stacked and welded to form a rotor core. The magnetic pole polarities of any two adjacent permanent magnet groups in the eight magnetic pole regions are opposite. The permanent magnetic field within a single magnetic pole is asymmetric, and the permanent magnetic fields of adjacent magnetic poles are also asymmetric, reducing cogging torque, torque pulsation, and vibration noise. Each magnetic pole consists of multiple layers of permanent magnet steel and a magnetically insulating air gap, resulting in significant magnetic focusing effect, high magnetic field strength, high power density, low air gap harmonic magnetic flux density, low hysteresis loss, low stator core eddy current loss, and high motor output efficiency.

The application provides a gear synchronous transmission anti-clamping laser pipe cutting chuck, which comprises a front cover, a rear cover, a connecting shaft for fixedly connecting the front cover and the rear cover, two pairs of clamping claws for clamping a pipe, an actuating cylinder for providing a power source, a synchronous driving mechanism for synchronously transmitting the driving force of the actuating cylinder to the clamping claws, and an anti-clamping mechanism for limiting the stroke of the synchronous driving mechanism and thus limiting the stroke of the clamping claws; the synchronous driving mechanism comprises an ear seat connected with the actuating cylinder, a push rod connected with the ear seat, a synchronous driving gear wheel in transmission connection with the push rod, four driven gear wheels in meshing connection with the synchronous driving gear wheel, one pawl fixedly arranged on each of the driven gear wheels, and four sliders slidably arranged on the front cover; the four pawls are in transmission connection with the four sliders respectively; and one clamping claw is fixedly arranged on each of the sliders. The application has high transmission efficiency and synchronous precision, is suitable for machining pipe fittings with a large size range, and can be effectively used for clamping thin pipes or fragile pipe fittings.

The invention relates to the field of acrylic emulsion, and discloses acrylic emulsion for moisture-resistant packaging paper and a preparation method thereof.Butyl acrylate and 2-ethylhexyl acrylate are adopted as soft monomers, styrene and methyl methacrylate are adopted as hard monomers, the Tg of the acrylic emulsion is made to range from-25 DEG C to-15 DEG C, and the moisture-resistant packaging paper is prepared. The coating can quickly form a film on the packaging paper, forms a compact latex film, has good performance of preventing water vapor from passing through the packaging paper, and is not easy to stick after being coated on the paper by adopting a core-shell polymerization process and a soft core and a hard shell. The introduced carboxyl functional group and long-chain alkyl functional group can improve the stability and hydrophobicity of the paper, and the introduced carboxyl and hydroxyl functional group can improve the binding force of the coating and the paper, so that the moisture resistance of the paper coating is further optimized.

This invention relates to a diamond abrasive tool based on additive manufacturing, belonging to the field of diamond abrasive tools. It includes: grinding discs, a frame, and a tool substrate. The frame is a ring-shaped structure obtained through additive manufacturing and is fixedly mounted on the end face of the tool substrate. Multiple grinding discs are circumferentially spaced and fixedly mounted on the frame. The frame has various functional structures. This invention focuses on the additive manufacturing of the non-working layer structure in diamond abrasive tools, and does not involve the arrangement, holding, or bonding processes of diamond abrasive grains. The grinding component is a commercially available or separately prepared functional unit containing diamond abrasive grains. It provides an efficient and economical installation and support solution for the grinding component, achieving a multifunctional composite structure with optimized performance.

A pre-hardened steel plate for a mirror-surface mold, comprising elements as follows: C: 0.28 to 0.36%, Si: 0.50 to 0.80%, Mn: 1.20 to 1.50%, P ≤ 0.020%, S ≤ 0.010%, Cr: 1.30 to 1.80%, Mo: 0.30 to 0.50%, Ni: 0.65 to 0.90%, V: 0.15 to 0.30%, H ≤ 1.5 ppm, and the balance is Fe and inevitable impurities. A pre-hardened steel plate with high hardenability for a mirror-surface mold having is obtained by using a manufacturing method comprising subjecting continuous casting billets to processes such as rolling, offline slow cooling, normalizing and tempering heat treatments. The advantages of the manufacturing method lie in that the production efficiency of continuous casting is high, the manufacturing costs are low. When not quenched-and-tempered, the hardness of the steel plate having a thickness of 20-180 mm reaches 38-42 HRC, the hardness fluctuation of the entire thickness ≤ 2 HRC, and the level of flaw detection satisfies the requirement of of level I in GB / T2970.

The utility model provides a kind of mining roadway rapid supporting equipment, it is related to supporting device technical field, including main column, the upper surface of main column is provided with recess, the top of main column is provided with adjusting assembly, the adjusting assembly includes the support rod of clamping groove connection in the recess inside the top of main column, the bottom of main column is provided with support assembly, four groups are provided in main column, and protection assembly is arranged between main column;By setting adjusting assembly, support rod can be freely adjusted angle to adapt to different roadway, improve the flexibility and applicability of device, by fine adjustment jacking head height to adjust the height of main column, so that the device can adapt to different height tunnel, by the setting of the protrusion welded in the left upper end and the right upper end of support plate, the device can be freely combined according to the radius of roadway Support plate, flexible use different roadway, the support plate that is removed can also be used twice, improve performance-price ratio.

The application relates to the technical field of current monitoring, and discloses a combined shunt and a sampling device, the combined shunt comprising: a resistance plate used as a main passage of a current to be measured; a sampling structure used for collecting a differential pressure signal, the sampling structure being connected to the resistance plate at least in a relative mode; and a connecting structure used for connecting an external circuit, the connecting structure comprising an aluminum plate, the aluminum plate being arranged on two sides of the resistance plate in a relative mode, and the vertical projection area of one side of the resistance plate connecting the sampling structure on one end of the aluminum plate close to the sampling structure being M1, and M1 >= 0. The application improves the performance-price ratio of the shunt.

The utility model relates to an electric lap joint structure and an inductor, and relates to the technical field of inductors, the electric lap joint structure comprises an aluminum core, a transition bar and a copper bar, the aluminum core comprises a vertical part and a straight part, the transition bar is arranged on the straight part of the aluminum core and is arranged between the straight part and the copper bar, and the transition bar is arranged between the vertical part and the copper bar. The aluminum core is electrically connected with the copper bar through the transition bar, and the aluminum core, the transition bar and the copper bar are fixed through bolts. The aluminum core and transition bar structure is used for replacing an all-copper inductor, aluminum serves as a material which is low in price and good in electric lead, and the production cost of the whole inductor can be reduced; the electric connection between the aluminum core and the copper bar adopts the transition bar for bridging, so that the direct contact between aluminum and copper is avoided, and the electrochemical corrosion is effectively avoided; and a bolt fixing mode is adopted, so that the complexity of a production process is reduced, the problem of material stress possibly caused by high-temperature welding can be avoided, and the reliability and stability of the inductor are further improved.

A smart miniature circuit breaker belongs to the field of switchgear technology. The smart miniature circuit breaker includes a miniature circuit breaker body, a measurement and control module installed on the wiring side of the miniature circuit breaker body, and an electric operating module installed on the side of the miniature circuit breaker body. The electric operating module is spliced ​​to the miniature circuit breaker body, and the measurement and control module is plugged into the electric operating module. The bottom of the measurement and control module is provided with an outwardly extending conductive contact piece, which is inserted into the miniature circuit breaker body and can be securely assembled with the wiring terminals of the miniature circuit breaker body using fasteners. Advantages: Simple structure, flexible and robust assembly, and reduced cost of intelligent transformation.

The application discloses a medium wide-band rolling mill supporting roller and a centrifugal composite casting method thereof, and belongs to the technical field of metallurgical rolling; and solves the quality problems of the existing technology, such as peeling caused by poor combination of the working layer of the roller body, insufficient strength of the roll neck and fracture, etc. The wide-band rolling mill supporting roller comprises an outer layer, an intermediate layer and a core portion from outside to inside; the outer layer is made of 45Cr4NiMoV steel, and the intermediate layer and the core portion are made of nodular cast iron. The centrifugal composite casting method of the medium wide-band rolling mill supporting roller comprises the following steps: step 1, smelting and slag washing of the outer layer molten steel; step 2, refining and pouring of the outer layer molten steel; step 3, smelting, inoculation and pouring of the intermediate layer molten iron; step 4, stopping and assembling; step 5, smelting, spheroidizing inoculation and pouring of the core portion molten iron; and step 6, quenching and tempering heat treatment. The medium wide-band rolling mill supporting roller has the advantages of low production cost, short production cycle, high accident resistance, etc.

This application relates to the field of photovoltaic device manufacturing and testing technology, specifically disclosing a rapid testing method for the contact resistance of solar cells based on TLM (Transmission Line Model). To address the problem of large fluctuations and numerous outliers in data measured by domestically produced equipment, the method includes: S1, Sample Preparation: Using a dicing machine, the main grids of the solar cell are removed, leaving the fine grids, to prepare strip-shaped test samples, which are then fixed on a testing platform; S2, Probe Matching and Testing: Based on the fine grid spacing of the strip-shaped test samples, a matching probe model is selected, and multiple fixed strip-shaped test samples are subjected to transmission line model testing to obtain contact resistance and resistivity data; S3, Outlier Data Processing: The dataset obtained in S2 undergoes two-level filtering: significantly large outlier data is deleted; the remaining data is sorted and a trend chart is plotted, deleting step-like jump points that deviate from the overall gradual upward trend. This application effectively solves the core pain point of large data fluctuations and numerous outliers in domestically produced equipment.

The application discloses a kind of processing equipment of pure steel prefabricated floor, it includes support, fixed plate, mobile plate is movably provided on fixed plate, three-jaw chuck is fixed on mobile plate, steel pipe for making connection plug-in cylinder or connecting sleeve is clamped on three-jaw chuck, punch plate is equipped on mounting bracket, and punch plate is used for punching processing sliding groove, connecting groove, rotatable mounting block is equipped on support, two solid steel columns are fixed on mounting block, receiving groove is equipped at the end of solid steel column, solid steel column can be inserted into steel pipe, and punching groove opposite to punch plate is equipped on solid steel column, cutting mechanism is installed on mounting bracket.The floor processed by the present processing equipment avoids the problems such as easy cracking of bottom concrete compared with traditional concrete floor, and for the engineering with large floor load, the height of cylinder can be increased according to the height of secondary beam, the bending and shear resistance of floor is improved, the thickness of upper and lower steel plates is effectively reduced, and good economic benefits are obtained.

The utility model discloses a kind of underwater junction box of self-power supply type, specifically relates to underwater junction box technical field, including pressure containment shell, the inside of pressure containment shell is equipped with mounting plate, the top of mounting plate is fixed with photoelectric conversion module, the bottom of mounting plate is fixed with battery pack, the front end and rear end of pressure containment shell are respectively equipped with front sealing cover plate and rear sealing cover plate, the mounting plate is installed between front sealing cover plate and rear sealing cover plate, and the front end of front sealing cover plate is fixed with telecommunication signal interface and power supply interface.The utility model places a battery pack in pressure containment shell for the continuous power supply of photoelectric conversion module, while setting power supply interface, it is convenient to charge battery pack, realizes the repeated use of underwater junction box, prolongs the service life of equipment, improves the performance-price ratio of equipment, and, can also reduce the dependence on long-distance cable power supply, reduces cable material cost and the power supply loss cost caused by voltage drop.

The invention discloses an anti-reflection coating liquid, a preparation method thereof and anti-reflection coated glass, and the preparation method of the anti-reflection coating liquid comprises the following steps: adding an auxiliary agent and a solvent into silica sol, and uniformly mixing to obtain the anti-reflection coating liquid, the preparation method of the silica sol comprises the following steps: mixing and uniformly stirring water, an emulsifier and an initiator, adding styrene and a cationic monomer into the mixture, heating to 70-85 DEG C to carry out polymerization reaction, and cooling after reacting for 3-5 hours to obtain an emulsion; and adding siloxane, a silane coupling agent, a catalyst and water into the emulsion, uniformly stirring, and carrying out hydrolytic polycondensation reaction at 50-70 DEG C to obtain the silica sol. According to the preparation method of the anti-reflection coating liquid, the used raw materials, auxiliaries and solvents are low in price, and the cost of the raw materials can be reduced; the particle size distribution of the silica sol in the prepared anti-reflection coating liquid is uniform, so that the prepared anti-reflection coated glass has high light transmittance, high hardness and excellent smudginess resistance and weather resistance.

The invention discloses a video early warning method and system based on a visual large model. The method comprises the following steps: a data acquisition step: acquiring structured visual data generated by a video monitoring system; a visual analysis step: performing deep analysis on the panoramic image by using a pre-trained visual large model; a feature modeling step: constructing a multi-dimensional feature vector based on a deep analysis result; a semantic deployment and control step: establishing an abnormal behavior deployment and control mechanism based on natural language description, analyzing the abnormal behavior deployment and control mechanism into feature vectors which can be understood by a machine, and forming a deployment and control strategy; and a real-time comparison and early warning step: performing real-time comparison on the multi-dimensional feature vector and a deployment and control strategy to generate early warning information conforming to an early warning condition. According to the method, deep understanding of personnel behaviors and appendages in the video image is realized, the accuracy and real-time performance of abnormal event identification are improved, and an intelligent early warning analysis means is provided for public security actual combat.

The utility model relates to an inclined intelligent scanning dictionary pen. The inclined intelligent scanning dictionary pen comprises a dictionary pen shell, a cavity loudspeaker assembly, a battery module, a dictionary pen electronic board, a dictionary pen reading assembly, a power-on key and a voice key. The dictionary pen shell comprises a dictionary pen rear shell, a dictionary pen cover plate and a screen support plate. During installation, the screen support plate is installed at the top end of the dictionary pen cover plate, the dictionary pen cover plate is installed on the dictionary pen rear shell, the dictionary pen electronic plate, the cavity loudspeaker assembly and the power module can be compactly arranged in the dictionary pen shell, and therefore operation is easy and convenient, and the cost performance of the dictionary pen is improved. The power supply module is composed of a lithium battery, a charging circuit and a step-down chip power supply circuit, so that the XR872-AT chip can be controlled to adopt different power supplies in different time stages according to actual conditions, and power consumption can be reduced when the dictionary pen is used.

This utility model relates to the field of aluminum-plastic co-extruded energy-saving doors and windows, and discloses an integrated aluminum-plastic connector for flush-mounted screens, including a window frame. A sub-frame is adhered to the inner wall of the window frame via thermally broken aluminum material. A thermal insulation strip is provided on the inner wall of the window frame. Four inner sealing strips are provided on the inner wall of the sub-frame. A screen hinge is provided on the inner wall of the window frame, and a screen is provided on the outer wall of the screen hinge. A window sash is fixedly connected to the inner wall of the window frame. This utility model meets the differentiated needs of energy-saving doors and windows used in buildings, significantly improves the cost-effectiveness of integrated energy-saving doors and windows with flush-mounted screens, represents an improvement in the processing technology of aluminum-plastic co-extruded energy-saving door and window profiles, further enhances the overall performance of doors and windows, and can be conveniently used in the home decoration energy-saving building market. Furthermore, the improved sealing enhances the sound insulation and thermal insulation performance of energy-saving doors and windows, and to a certain extent reduces the heat conduction of the window frame material, fully meeting the usage standards for home decoration energy-saving doors and windows.

The present application belongs to the technical field of oil and gas medium detection, and provides a self-calibration real-time accurate detection method and system for multiphase flow medium in an oil and gas pipeline. The method comprises: immersing a detection transmission line and a T4R calibration piece into the same detection environment; performing fluid dielectric constant inversion to obtain a dielectric constant inversion result, which is used for component analysis; and using an optimized frequency diversity sensing method to realize accurate positioning of foreign matters in the pipeline. The system comprises a calibration and sensing unit and a signal processing and control unit. The present application calibrates the measurement data of the detection transmission line and the offset reflection calibration piece by introducing a T4R calibration method, uses the calibrated measurement data of the detection transmission line and the offset reflection calibration piece for dielectric inversion, analyzes the fluid components, and the component analysis accuracy and stability are better; the calibrated measurement data of the detection transmission line is used to improve the frequency diversity sensing method, so that the dependence on prior information is eliminated, and foreign matter positioning in a packaged scene is realized.