Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

45results about How to "Speed ​​up" patented technology

Clock domain crossing synchronization circuit and method in EMU simulation verification environment and simulator

The invention provides a clock-domain-crossing synchronization circuit and method in an EMU simulation verification environment and a simulator. The clock-domain-crossing synchronization circuit and method in the EMU simulation verification environment are used for solving the technical problem that a clock-domain-crossing metastable state cannot be simulated in the EMU simulation verification environment simulated before chip design. The metastable state simulation circuit is added behind the trigger synchronization circuit constructed based on a multi-stage trigger cascade mode, the metastable state data output scene crossing the clock domain is simulated through the metastable state simulation circuit, and the technical scheme provided by the invention and a CDC simulation means in a DV design verification environment supplement each other; problems possibly generated by the tested design in a CDC scene can be effectively found in the early stage of chip verification, so that the correctness of chip design is effectively guaranteed, and the progress of chip research and development is accelerated.
Owner:格创通信(浙江)有限公司

A jet pump propulsion device

ActiveCN224703230USpeed ​​upreduce jitter
This utility model discloses a jet pump propulsion device, comprising: a pump casing having a water inlet section with a water inlet hole; a drive assembly including an impeller and a power component for rotating the impeller, the impeller being rotatably disposed inside the pump casing; and a guide section located within the water inlet section, the guide section having a guide surface on the side near the impeller for guiding external water flow towards the impeller, the guide surface opposite the water inlet hole, and the guide surface forming a guide channel with the inner wall of the water inlet section, the cross-section of the guide channel gradually increasing in the direction close to the impeller. This utility model can reduce shaking and vibration during propulsion, improving the smoothness of propulsion.
Owner:ZHAOQING KUNPENG POWER CO LTD

A coil inner lead wire soldering machine

The utility model relates to the technical field of coil processing discloses a kind of coil inner side lead wire soldering machine, including rack, soldering jig, jig driving part and soldering assembly are set on rack, jig driving part is transmission connection with soldering jig, jig driving part drives soldering jig to approach or away from soldering assembly, soldering assembly is used to carry out soldering to the coil on soldering jig;By setting soldering jig on rack to facilitate the coil to be soldered is placed, simultaneously by jig driving part drives soldering jig to move to soldering assembly, by controlling soldering depth and soldering time to grasp the soldering effect of corresponding coil lead, and then improve soldering efficiency and soldering progress, improve processing efficiency and yield.
Owner:GOLD EAGLE COIL & PLASTIC

Construction method of water supply and drainage well

The application discloses a construction method of a water supply and drainage well, which adopts a method of top-down side excavation and side pouring and an inward staggered construction mode, effectively solves the problems of complicated process and slow construction progress in the prior art construction, guarantees safety, speeds up the progress, has small land occupation, does not need foundation pit supporting measures during construction, only needs to well do temporary protection, is convenient for ventilation system and ladder construction during top-down construction, adopts brick laying construction or steel structure installation for a well mouth reserved part, is convenient for chiseling and removing in the later period, is simple in construction, and is low in cost; the construction mode does not need to additionally construct a large construction operation platform, is constructed on an unexcavated soil surface, does not exist the risk of high-altitude operation, has small land occupation, is convenient for material transportation and hoisting and reinforced concrete construction, and greatly improves construction efficiency.
Owner:CCCC SOUTH CHINA MUNICIPAL ENG CO LTD +1

Pitched roof concrete vibrating and smoothing device

ActiveCN224078545UImprove the quality of look and feelSpeed ​​upRoof toolsBuilding material handlingSurface finishArchitectural engineering
The utility model discloses a pitched roof concrete vibrating and smoothing device, which belongs to the technical field of building construction appliances and comprises a mounting frame, two face smoothing wheels are arranged below the mounting frame and are arranged in parallel front and back, and a vibrating plate is arranged between the two face smoothing wheels. A lifting mechanism used for driving the vibrating plate to work is arranged above the vibrating plate, a driving mechanism used for driving the noodle collecting wheel to rotate and the lifting mechanism to work is further arranged on the mounting frame, a telescopic rod is arranged on the mounting frame through a connecting frame, and an operating handle is arranged at the top end of the telescopic rod. According to the concrete surface finishing machine, the motor is used for driving the two surface finishing wheels to roll on the concrete surface to carry out concrete surface finishing operation; and meanwhile, the vibrating plate is driven to perform surface vibrating operation on the cement surface, so that the concrete surface is vibrated and polished, the construction operation is simple, the progress of vibrating and surface finishing of workers is greatly improved, the construction period is guaranteed, the labor cost is saved, the concrete appearance quality is improved, and very high practicability is achieved.
Owner:SHANXI NO 3 CONSTR ENG

Digital certificate traceability and cancel-after-verification method and system based on creditor and debt atlas

The invention is suitable for the technical field of digital certificate traceability and verification, and particularly relates to a digital certificate traceability and verification method and system based on a creditor and debt atlas, and the method comprises the steps: constructing a creditor and debt relation database, extracting a relation main body and a corresponding creditor and debt relation, and taking the relation main body as a node, the creditor and debt relation is a directed edge, the nodes are connected through the directed edge, a creditor and debt atlas is generated, and the directed edge points to a creditor from a debtor; attribute data of the digital certificate is collected, the attribute data at least comprises certificate identification, debt amount, expiration time and current debt state, the incidence relation between the directed edge and the attribute data is established, and the creditor and debt atlas is inserted into the creditor and debt relation database. By generating the verification suggestion, high-risk debt can be preferentially solved, the overall debt cost can be reduced, the debt resource allocation can be optimized, scientific debt can be realized, and the debt progress and the debt quality can be remarkably improved.
Owner:GANSU LONGCAI ASSET OPERATION CO LTD

Cargo ropeway system for electric power construction

This invention discloses a cargo transport cableway system for power construction, relating to the field of power construction. It includes a freight tunnel, in which saddles are evenly arranged on the track cable. The saddles are connected to cargo baskets via quick-connect mechanisms, and loading and unloading stations are equipped with loading platforms on the ground. The cargo transport cableway of this invention connects the saddles and cargo baskets via quick-connect mechanisms. The socket and plug structures in the quick-connect mechanisms can quickly engage and disengage upon arrival at the loading and unloading stations. Furthermore, the engagement and disengagement of the socket and plug structures do not require external power, thus eliminating the need to stop the cableway during loading and unloading. This avoids the impact forces generated by frequent starts and stops, which can easily cause uneven stress and metal fatigue on the traction cable and other structures. It also improves the transportation progress of construction materials, ultimately accelerating the overall progress of power construction projects.
Owner:ZHENGZHOU AIRPORT GANGXING POWER CO LTD

Database fuzzing method based on write-copying

PendingCN122285528ASpeed ​​up the overall progress of fuzz testingSpeed ​​upDatabaseFast recovery
This invention relates to the field of database testing technology and discloses a database fuzzing method based on copy-on-write. The method includes: initializing a persistent layer to obtain a baseline storage state; creating a temporary layer and associating it with the persistent layer to form a union storage view; during test case execution, redirecting write operations to the temporary layer via copy-on-write, while read operations are read from either the temporary or persistent layer depending on whether the data exists; after testing, deleting and rebuilding the temporary layer to quickly restore the initial state; and repeating this process until all test cases are completed. This application constructs a two-layer storage structure consisting of a persistent layer and a temporary layer, recording all test changes in the temporary layer. After testing, only deleting and rebuilding the temporary layer is needed to quickly reset the repository, avoiding a complete initialization process and significantly improving the efficiency of database fuzzing.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 61660

Uniform material spraying device for food processing

The utility model relates to the technical field of food processing, and discloses a food processing uniform spraying device which comprises a bottom plate, a conveying belt, a spraying mechanism and a stirring mechanism are arranged above the bottom plate, and the stirring mechanism is located on the surface of the spraying mechanism; the material spraying mechanism comprises a material spraying part and an adjusting part; the adjusting part is positioned below the material spraying part; the material spraying part comprises a connecting frame and a supporting plate, the bottom face of the connecting frame is fixedly connected with the top face of the bottom plate, and the bottom face of the supporting plate is fixedly connected with the top face of the connecting frame. Materials in the stirring box can be conveniently sprayed on the surface of food on the conveying belt through the spraying part of the spraying mechanism, the position and height of the spraying head can be adjusted through the adjusting part, so that the spraying head conveniently sprays the materials on the food, the position of the food does not need to be repeatedly adjusted, meanwhile, the materials sprayed on the surface of the food are flattened through a scraping plate, and the efficiency is improved. And material waste caused by material accumulation is avoided, and the food processing efficiency of the material spraying device is improved.
Owner:乔恒

A method for calculating the weight and balance of water ingress into the watertight compartment of a large seaplane

ActiveCN116305509BAccurate weight center of gravity influencecausing accident lossesGeometric CADSustainable transportation
This invention proposes a method for calculating the water ingress weight and balance of a seaplane's watertight compartment, comprising: S1, determining the allowable value Δx for the safe center of gravity margin; S2, determining the relationship between the center of gravity of each watertight compartment and the empty aircraft's center of gravity, dividing the watertight compartment center of gravity into two datasets: before and after the empty aircraft's center of gravity; S3, determining the volume factor ratio of each watertight compartment relative to a reference watertight compartment based on the determined external volume of the watertight compartment; S4, using the volume factor ratio and the dataset obtained in step 2, conducting an analysis of the water ingress weight and balance before and after the empty aircraft's center of gravity until the allowable value Δx for the safe center of gravity margin is met; S5, selecting the water ingress volume of watertight compartment (1) that is greater than and closest to the engineering realization value as the final water ingress volume value, and calculating the allowable water ingress volume of the remaining watertight compartments; S6, determining the final weight and balance analysis results of the watertight compartments, ensuring that the allowable water ingress volume of each watertight compartment meets the requirement of the allowable value Δx for the safe center of gravity margin. This application enhances the safety and reliability of amphibious aircraft during waterborne test flights and operations.
Owner:AVIC GENERAL HUANAN AIRCRAFT IND CO LTD

Auxiliary treatment device for thyroid surgery nurses

PendingCN121926743AEasy to transfer outeasy to adjust sizeInfusion devicesWheelchairs/patient conveyanceControl valvesThyroid
The invention discloses an auxiliary treatment device for thyroid surgery nurses. The auxiliary treatment device comprises a first supporting plate, a second supporting plate, an infusion protection structure, an infusion structure, a storage protection structure, a movable structure, a fixed structure, a moving structure and a supporting structure. By pulling a control valve, the angle of a first supporting plate can be adjusted under pulling of the control valve and movable rotation of a first movable shaft, angle adjustment of the first supporting plate drives angle adjustment of a pillow and a neck ring, and then angle adjustment of a storage protection structure and a movable structure is driven; therefore, angle adjustment of the fixing structure and the infusion protection structure is driven, and angle adjustment of the infusion structure is driven by angle adjustment of the infusion protection structure. The protection box slides downwards, so that the protection buckle and the protection clamping groove are separated, at the moment, the upper infusion telescopic rod is pulled out, then the upper infusion telescopic rod is pulled to form an angle suitable for infusion with the first supporting plate, and the operation is beneficial to arranging the infusion structure and the device body into a whole.
Owner:HARBIN MEDICAL UNIVERSITY

A shaped drill bit for machining thin-walled parts

ActiveCN224587053Ueasy to operateShortened single disassembly and assembly time
This utility model relates to the field of parts processing technology and discloses a forming drill bit for processing thin-walled parts, including a drill bit body and a mounting part; two symmetrically distributed locking pins are fixedly connected to the circumferential side wall of the drill bit body; a guide groove corresponding to the two locking pins is opened at one end of the mounting part near the drill bit body, and a sliding groove is opened inside the mounting part, which is connected to the guide groove; two slots corresponding to the locking pins are also opened inside the mounting part, which are connected to the sliding groove, and the sliding groove is fan-shaped; a pressing structure is fixedly connected to the inner wall of the mounting part, and a pressing component is rotatably connected to the inner cavity of the mounting part. When installing this utility model, only three steps are required to complete the fixing: "insertion positioning → rotation locking → rotation knob locking". When disassembling, it can be separated by "reverse rotation of the knob → spring reset → rotation withdrawal", without the cumbersome steps of inserting and removing pins.
Owner:BEIJING BOYINGTUO TECH CO LTD

SDK (Software Development Kit) interface calling method and device, storage medium and electronic equipment

The invention discloses an SDK interface calling method and device, a storage medium and electronic equipment, and the method comprises the steps that a data request sent by a client through an abstract interface is received, the abstract interface is a universal interface which is researched and developed in a unified mode when multiple clients are researched and developed, and the data request comprises a target client identifier; an interface mapping table is inquired according to the target client identifier, a target SDK interface is obtained, the interface mapping table comprises the mapping relation between different client identifiers and the SDK interface, and the target SDK interface is the SDK interface corresponding to the target client identifier; and processing the data request by calling the target SDK interface. Therefore, no matter whether the original actual interface of the SDK is changed or not or whether a new SDK interface is added, the client side is not influenced, the interface of the client side is not changed along with the change of the actual interface of the SDK, convenience is brought to research and development of the client side, and expandability and maintainability of the system are improved.
Owner:MOMENTA (SUZHOU) TECHNOLOGY CO LTD

High polymer material anti-fatigue testing device

ActiveCN224189787UAccelerate research and developmentSpeed ​​upMaterial strength using repeated/pulsating forcesMechanical engineeringMechanical property
The utility model discloses an anti-fatigue testing device for a high polymer material. The anti-fatigue testing device comprises a base; the fixed end of the linear driver is arranged on the base, and the movable end of the linear driver moves in the vertical direction; the lifting plate is arranged at the moving end of the linear driver; and each material clamping part comprises two material clamping devices, one material clamping device is arranged on the base, the other material clamping device is arranged on the lifting plate, and the two material clamping devices are used for clamping the two ends of the high polymer material respectively. The device can be used for carrying out anti-fatigue test on a plurality of high polymer materials at the same time, improves the test efficiency, and is mainly used for evaluating the mechanical property change of the high polymer materials under alternating load.
Owner:SGS-CSTC STANDARDS TECH SERVICES (TIANJIN) CO LTD

Parameter multiplexing-based intelligent paver one-button control method and system

PendingCN121956889ARealize full-process automatic operationWith automatic recordingRoads maintainenceProgramme total factory controlMultiplexingRecord status
The invention discloses an intelligent paver one-button control method and system based on parameter multiplexing, and belongs to the technical field of paver equipment. According to the method, a central controller is controlled to automatically execute a preset transition or construction operation action sequence through a one-key operation instruction, and the action sequence comprises the actions of closing / opening a hopper, lifting / descending an ironing plate, stretching / retracting a hopper telescopic pin and a large arm pin, lifting / descending a material distribution frame, switching gears and the like. In the construction process, the system collects and stores construction parameters in real time through a sensor, and two modes of active recording and passive recording are supported. And when the construction mode is entered again, each execution mechanism can be automatically recovered to the recording state according to the historical parameter file, so that the consistent multiplexing of the construction parameters is realized. The method further has the functions of fault real-time detection, voice prompt and closed-loop adjustment, the operation difficulty is effectively reduced, and the automation degree of paving operation and the construction quality stability are improved.
Owner:XCMG CONSTRUCTION MACHINERY CO LTD ROAD MACHINERY BRANCH

Typhoon forecasting oriented GNSS occultation refractivity data adaptive assimilation method and system

The application discloses a typhoon prediction-oriented GNSS occultation refractivity data adaptive assimilation method and system, and the method comprises the following steps: quality evaluation is performed on GNSS occultation refractivity observation data to obtain a decimal bias standard deviation; a preset refractivity observation error operator in a WRFDA data assimilation system is dynamically adjusted according to the standard deviation, so that the adjusted error operator value increases with the increase of the standard deviation and decreases with the decrease of the standard deviation; an occultation refractivity observation data set for data assimilation is constructed by using the adjusted error operator; assimilation is performed through the WRFDA data assimilation system to obtain a three-dimensional atmospheric analysis field and updated boundary conditions; the WRF numerical prediction model is driven by using the analysis field and the boundary conditions to perform prediction and obtain a three-dimensional atmospheric prediction field; and typhoon position and intensity prediction information are extracted from the three-dimensional atmospheric prediction field. The application realizes adaptive optimization of observation weight according to data quality, avoids misremoval of high-quality occultation data, and improves data utilization rate and typhoon path and intensity prediction accuracy.
Owner:WUHAN UNIV

Five-axis linkage floating positioning precision machining device for a steering gear housing

ActiveCN121132358BHigh precisionSpeed ​​up
This invention relates to the technical field of steering gear housing positioning devices, specifically a five-axis linkage floating positioning precision machining device for steering gear housings. It includes a lifting mechanism, an in-housing positioning mechanism mounted on the lifting mechanism, a housing hole alignment mechanism mounted on the in-housing positioning mechanism, and a housing blank clamped within the in-housing positioning mechanism and the housing hole alignment mechanism. The in-housing positioning mechanism includes a column head, with a column installed inside the column head, and a second hydraulic component installed inside the column head. Four stabilizing pads arranged in a cross-shaped structure around the column head and column are positioned on the outside of the column head. With the operation of the second hydraulic component, the lifting and lowering of the slide block drives multiple outriggers to achieve linkage. Ultimately, the four evenly distributed stabilizing pads quickly calibrate and fix the inner arc groove of the inverted housing blank. The internally fixed housing blank avoids interference surface problems, facilitating improved surface machining accuracy and speed.
Owner:YANGZHOU RONGTAI IND DEV

Propelling and fixing device for steel structure overhanging support

ActiveCN224282021UAutomate the advancementSpeed ​​upBuilding material handlingRotational axisHydraulic cylinder
The utility model discloses a propelling and fixing device for a steel structure overhanging support, which relates to the technical field of building construction equipment and comprises a base, a rotating shaft is rotatably mounted on the base, a shaft sleeve is rotatably connected onto the rotating shaft, an adjusting seat is fixedly connected onto the shaft sleeve, an oil cylinder is rotatably connected onto the top surface of the base, and a fixing seat is fixedly connected onto the oil cylinder. The telescopic end of the oil cylinder is hinged to the bottom surface of the adjusting seat; the propelling assembly comprises a plurality of driving wheels mounted on the rotating shaft at equal intervals, driven wheels which are in one-to-one symmetry with the driving wheels and are rotationally mounted at the front end of the adjusting seat, a transmission belt which is in transmission connection between the driving wheels and the driven wheels, and a driving part for driving the rotating shaft to rotate. According to the automatic propelling device, automatic propelling of the steel structure overhanging support can be achieved, the problems that when a crowbar, a jack and other tools are manually used for propelling, efficiency is low, and propelling is not smooth are solved, and the propelling speed is greatly increased.
Owner:JIANGSU JINGYUE MACHINERY CO LTD

Soil sampling device for water conservancy construction

ActiveCN224624048UEasy to shovel inImprove work efficiency
This utility model proposes a soil sampling device for water conservancy construction, including a storage chamber, a chamber door, and a support. The storage chamber has a hollow structure, with the chamber door movably connected to its top surface and the support fixedly connected to its bottom. A bushing is installed on the inner side of the support, and a movable wheel is movably connected to the outer side of the bushing. Handles are fixedly connected to both sides of the storage chamber. The advantages of this utility model are: the material channel resembles a bucket structure, inserted into the ground soil layer. A winch rotates under the action of a second motor and a second transmission box, easily breaking through hard soil layers to facilitate the material channel scooping in soil samples. A belt rotates under the action of a first motor and a second transmission box, causing a chuck to rotate and move towards the top of the material channel, conveying the soil sample to the storage chamber for storage. This structural design allows for the automatic collection of large quantities of soil samples, even in hard soil, greatly improving sampling efficiency.
Owner:李有法

Prefabricated pipe gallery structure modular construction method

This invention discloses a modular construction method for prefabricated utility tunnel structures, comprising the following steps: S1, prefabricating several segments of reinforced concrete integrated utility tunnel columns and beams; S2, excavating a foundation pit to construct a foundation platform, forming several spaced-apart sockets on the platform; S3, hoisting the integrated utility tunnel column and beam structure as a whole, positioning and fixing the bottom of the integrated structure into the sockets; S4, repeating step S3 to complete the installation of the next integrated utility tunnel column and beam structure; S5, pouring concrete at the joints between adjacent integrated utility tunnel columns and beams. This invention can further reduce construction costs, shorten the construction period, and ensure construction progress while maintaining construction efficiency and quality, and can effectively control problems such as construction waste, site dampness, and dust pollution during construction.
Owner:THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG

Light stabilizer detection sampling tool

The utility model belongs to the technical field of light stabilizer detection and sampling, and particularly relates to a light stabilizer detection and sampling tool which comprises a portable component, a sampling component is mounted in the portable component, and a protection component is arranged on the side of the sampling component; the sampling assembly comprises a sampling bottle, the top of the sampling bottle is in threaded connection with a cover, the top of the cover is fixedly connected with an air pipe, the top of the air pipe is fixedly connected with a micro air pump, the side of the air pipe is provided with a threaded fixing clamp, and the side of the threaded fixing clamp is in threaded connection with a nut. A connecting pipe is connected to the interior of the threaded fixing clip in a clamping manner, and a sampling pipe is fixedly connected to the top of the connecting pipe; the problem of cross contamination caused by difficulty in cleaning can be effectively avoided, a communication structure formed by the sampling tube, the connecting tube and the sampling bottle is reasonable in design, so that a sample can smoothly enter the sampling bottle in the extraction process, the risk of sample residue and blockage is reduced, and the sampling accuracy is further ensured.
Owner:GANSU RES INSTION OF CHEM IND GRICI

Tunnel center drainage ditch and inverted arch filling integrated construction method

The application provides a tunnel center drainage ditch and inverted arch filling integrated construction method, which comprises the following steps: step 1) completing inverted arch lining construction; step 2) installing horse stool supports on the inverted arch lining at least at two positions; step 3) constructing a combination of formwork net and steel bars; step 4) installing the combination on the horse stools at the two positions in step 2); step 5) installing horse stool I for supporting the front section of the tunnel center water ditch pouring formwork; step 6) installing the tunnel center water ditch pouring formwork in the combination; step 7) installing center drainage ditch cover plate steel bars on the two side center water ditch body steel bars; step 8) installing end block formwork; step 9) pouring inverted arch filling concrete; step 10) pouring center drainage ditch concrete; step 11) continuously pouring inverted arch filling concrete; step 12) continuously pouring center drainage ditch concrete; step 13) concrete moisture and temperature preservation and maintenance; step 14) demolding; and step 15) performing circulation construction.
Owner:CCCC SECOND HIGHWAY ENG CO LTD

Civil aircraft ice accumulation diagnosis method, system, device and storage medium

The application provides a civil aircraft icing diagnosis method, system, equipment and storage medium, and the method comprises the following steps: obtaining the total temperature of the aircraft according to the environmental temperature, air density, flight speed and environmental pressure; obtaining the aircraft icing index by combining the SFIP algorithm with the total temperature of the aircraft; and judging the icing degree of the aircraft according to the icing index. The total temperature of the aircraft is obtained by the environmental temperature, air density, flight speed and environmental pressure, the aircraft icing index is obtained by combining the SFIP algorithm with the total temperature of the aircraft, and the aircraft power warming effect is considered, which helps to improve the accuracy of the icing diagnosis and prediction algorithm, and is obviously helpful for the accurate planning and safety protection of the flight task. The situation of icing air report is reduced, thereby reducing the waste of airspace resources and improving the test flight progress and efficiency of the aircraft.
Owner:COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1

A game display method, apparatus, and computer device

This application discloses a game display method, apparatus, and computer device, belonging to the field of computer science. This application embodiment can display a game interface, which includes at least a portion of the game scene and at least a portion of virtual objects located within the game scene. If the game scene includes an occupiable base for the current virtual object, an occupation prompt message for the occupiable base is displayed on the game interface. In response to the occupation operation for the occupiable base, the occupiable base is switched to a specific functional base for the current virtual object, and a successful occupation prompt message is displayed on the game interface. The specific functional base provides at least a resurrection function for the current virtual object. The method proposed in this application embodiment can improve the flexibility of the specific functional base, thereby enhancing the game's strategic depth and the player's gaming experience.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Basalt fiber sea sand concrete and preparation method and application thereof

The application discloses basalt fiber seawater and sea sand concrete and a preparation method and application thereof, and belongs to the technical field of building materials. The basalt fiber seawater and sea sand concrete is composed of the following components in parts by mass: cement 35-45 parts, sea sand 65-75 parts, gravel 105-120 parts, seawater 15-20 parts, water reducing agent 0.1-0.3 parts and basalt fiber 0.1-1 part. The raw material selection and mix proportion design improve the toughness and crack resistance of traditional concrete. The SEM result shows that the basalt fiber is mixed in the seawater and sea sand concrete, the fiber 'bridges' the cracks and improves the pore connection state, which is beneficial to improving the crack resistance, toughness, salt and alkali environment applicability and residual mechanical properties after high temperature, and the basalt fiber seawater and sea sand concrete can be used for a coastal tunnel shield segment, a FRP concrete structure and repair of existing structures in a marine environment.
Owner:CHINA RAILWAY SHISIJU GROUP CORP +1

Solid-liquid separation device for kitchen garbage sewage treatment

The utility model relates to the technical field of kitchen garbage treatment, and particularly discloses a solid-liquid separation device for kitchen garbage sewage treatment, which comprises a box body, one side of the top of the box body is fixedly connected with a connecting ring, the bottom end of the surface of the box body is provided with a slot, a drain outlet penetrates through the interior of the slot, and the output end of a servo motor is fixedly connected with a threaded rod. An electric push rod is rotatably arranged on the surface of the threaded sleeve, a transmission rod is fixedly connected to the output end of the first driving motor, an electric sliding rail is fixedly connected to the inner bottom wall of the box, a guide plate is fixedly connected to the top end of the surface of the collecting hopper, and a discharging port is formed in the bottom end of the back face of the box. According to the kitchen waste solid-liquid separation device, the separation cavity, the collection hopper, the guide plate, the sewage draining exit, the electric sliding rail, the filter plate and the plugging block are matched for use, solid-liquid separation can be achieved on kitchen waste, meanwhile, solid waste obtained after solid-liquid separation can be extruded and formed, follow-up concentrated discharging and transferring are facilitated, and the tedious situation that workers clean the solid waste one by one is reduced.
Owner:安徽合一城乡建设有限公司

Anti-falling rotary percussion screw drill

ActiveCN224079087Uavoid removal processSpeed ​​upDrilling rodsDrilling casingsScrew threadPhysics
The utility model relates to the technical field of rotary percussion screw drilling tools, in particular to an anti-falling rotary percussion screw drilling tool which comprises a drilling rod, a power connecting shaft is placed at the top end of the drilling rod, a connecting device is arranged on the upper surface of the drilling rod and comprises a connecting frame, the connecting frame is fixedly connected with the upper surface of the drilling rod, and a limiting groove is formed in the top end of the connecting frame. A limiting groove is formed in the power connecting shaft, a movable block is placed in the limiting groove and placed on the upper surface of the connecting frame, a clamping groove is formed in the inner wall of the limiting groove, a threaded block is connected into the connecting frame in an inserted mode, the threaded block is in threaded connection with the interior of the clamping groove, and a limiting assembly is arranged on the outer surface of the power connecting shaft. According to the utility model, the connecting device is arranged, so that the drill rod can be effectively prevented from falling into the ground, and a worker does not need to spend a lot of time to take the rotary percussion screw drill out of the ground, thereby improving the progress of a project.
Owner:江苏苏钻工程有限公司

Pipe gallery trolley construction method

The present application relates to the field of pipe gallery construction method, especially to a pipe gallery trolley construction method for realizing the construction efficiency of the underground comprehensive pipe gallery hydraulic formwork trolley in the occasion of the sinking section or the larger construction longitudinal slope, comprising the following steps: a, pipe gallery concrete bottom plate and U-shaped guide wall construction; b, side wall formwork and steel bar installation; c, trolley positioning; d, trolley adjustment; e, steel bar and pre-embedded part installation; f, concrete pouring; g, demolding; h, trolley moving mode comprises the following two modes: when the top concrete strength reaches the design strength, the trolley and the top form move integrally; after the top concrete strength reaches 80%, temporary vertical supports are arranged in the pipe gallery, the trolley is separated from the top form, the trolley walks forward first, and after reaching the next section position, the above steps a to g are repeated to carry out the next section construction.
Owner:CHINA 19TH METALLURGICAL CORP