58results about How to "Avoid high cost" patented technology

The invention designs a structure of a novel MEMS piezoelectric vibration energy collector and a manufacturing method of the novel MEMS piezoelectric vibration energy collector. According to the structure, the novel MEMS piezoelectric vibration energy collector comprises a dually-polished substrate and double substrate protecting layers. According to the manufacturing method of the novel MEMS piezoelectric vibration energy collector, a front metal conductive layer (the bottom) is used as an output bottom electrode; a patterned conductive adhesive is manufactured on an upper metal layer; a PZT piezoelectric patch is bonded to a silicon wafer bottom electrode through the conductive adhesive; full-piece covering of a top electrode metal conductive layer (the top) is conducted; KOH is corroded through a window in the back-side substrate protecting layer, and a cantilever beam structure which mainly contains epoxy resin and does not contain Si is released; a cantilever beam-quality block structure is released through scribing. The novel MEMS piezoelectric vibration energy collector is simple in structure, easy to obtain, capable of facilitating batch production, high in sensitiveness, output level and power, wide in application range, safe and reliable.

The invention provides a treatment method for direct coal liquefaction residues. The treatment method comprises the following steps: extracting direct coal liquefaction residues with an extraction solvent to obtain an extraction mixture; performing first-stage solid-liquid separation on the extraction mixture to obtain a first-stage clear liquid and a first-stage concentrated phase; performing second-stage solid-liquid separation on a part of or all the first-stage clear liquid to obtain a second-stage clear liquid and a second-stage concentrated phase; performing third-stage solid-liquid separation on a part of or all the second-stage clear liquid to obtain a third-stage clear liquid and a third-stage concentrated phase; performing second-stage solid-liquid separation on a part of the first-stage clear liquid and performing clear liquid solvent recovery treatment on rest of the first-stage clear liquid to obtain first-stage pitch; performing third-stage solid-liquid separation on a part of the second-stage clear liquid and performing clear liquid solvent recovery treatment on rest of the second-stage clear liquid to obtain second-stage pitch; and performing clear liquid solvent recovery treatment on all the third-stage clear liquid to obtain third-stage pitch. By the treatment method disclosed by the invention, three pitch products can be obtained and the added profit value of pitch in the direct coal liquefaction residues can be improved favorably.

The invention discloses a panoramic three-dimensional visual sensor and a using method. The visual sensor at least comprises three wide angle cameras fixed to a set mold, wherein any two cameras are placed on one side of the mold, and the third camera faces the other side of the visual sensor. Images collected by the two adjacent cameras are utilized for carrying out image three-dimensional vision analysis, images collected by all the cameras installed on the visual sensor mold are utilized for achieving image panoramic splicing, then all-directional visual analysis is carried out, and whether one object needing to be concerned exists or not is analyzed. According to the panoramic three-dimensional visual sensor, the characteristic of visual recognition of multi-view vision of a three-dimensional visual sensor and the characteristic of being capable of simultaneously collecting images in multiple directions of a panoramic visual sensor are combined at the same time, so that the panoramic three-dimensional images of the target object and the surroundings are represented.

The invention provides a system for detecting large-aperture double-curved-surface secondary mirrors, which comprises a phase shift interferometer, two Hindle spherical-surface partitioning reflectors symmetrically placed, a detected large-aperture double-curved-surface secondary mirror and a computer system, wherein the computer system is connected with the phase shift interferometer; the two Hindle spherical-surface partitioning reflectors are used for realizing the sub-aperture null detection for a corresponding zone outside the center obscuration of the double-curved-surface secondary mirror; the data of two sub-aperture phases corresponding to a distinguishable interference fringe is extracted through phase shift interferometer data processing software installed in the computer system; the relative position of the detected large-aperture double-curved-surface secondary mirror and the two Hindle spherical-surface partitioning reflectors is relatively rotated through an adjusting mechanism, so as to realize the full aperture range test for the detected large-aperture double-curved-surface secondary mirror; enough overlap regions exist between adjacent sub-apertures so as to realize high-precision data splicing treatment; and finally obtained sub-aperture test data is sent into the computer system to be subjected to splicing treatment, so as to obtain the surface shape information of the detected large-aperture double-curved-surface secondary mirror. The invention provides an effective low-cost detecting means for developing the double-curved-surface secondary mirrors with large aperture and super large aperture, and has great application value.

The invention provides a storage battery charging circuit and a warehouse-in auxiliary machine test device. During over discharge of a storage battery, the alternating current of a warehouse-in socket is received by a power supply conversion module through a first closed circuit breaker, and the alternating current is converted into a direct current output to the coil of a main contactor, so that the main contact of the main contactor is closed after the coil of the main contactor is electrified, and then the alternating current of the warehouse-in socket flows through the main contact of the main contactor and charges a storage battery through a storage battery charger of the warehouse-in auxiliary machine test device; a general 3AC380V power supply in the industrial field can be received through the warehouse-in socket, and a special warehouse-in charging socket does not need individually to receive electric energy of special ground charging equipment, so that the problem that the cost is high in the prior art is avoided.

The invention provides a method and apparatus for obtaining automobile acceleration data. The method comprises: first detection data of a three-shaft accelerometer in an automobile stationary state as well as second detection data corresponding to the three-shaft accelerometer in a linear speed-up state are obtained; according to the first detection data and the second detection data, a correction matrix is obtained, wherein the correction matrix is used for correcting a coordinate system direction of the three-shaft accelerometer; and with the correction matrix, measurement data of all coordinate shafts of the three-shaft accelerometer are corrected to obtain acceleration data of the automobile. With the method and apparatus, defects of high costs and manpower wasting because of utilization of a precise measurement instrument for acceleration sensor correction in the prior art can be overcome. Moreover, the operation is simple.

A power-down control conversion circuit comprises an MCU single chip machine control circuit, a commercial power input sampling circuit, a bypass static switch and an inverting static switch. The MCU single chip machine control circuit outputs a bypass control signal to control the conduction and the cut-off of the bypass static switch installed between a commercial power input end and an alternating current output end, and also outputs an inverting control signal to control the conduction and the cut-off of the inverting static switch installed between a UPS inverter and an alternating current input end, and then inputs a sampling signal of the commercial power input sampling circuit; and the circuit is characterized in that the commercial power input sampling circuit comprises a commercial power input sine wave amplitude sampling circuit and a commercial power input sine wave frequency sampling circuit; accordingly, the sampling signal comprises an amplitude sampling signal and a frequency sampling signal. The invention realizes the detection of inputting super high speed short power-down through dual sampling method of measuring the amplitude and the frequency of the input voltage waveform simultaneously, and has the characteristics of simple technique, stable circuit performance and low cost.

The digital image taking device includes one casing, one first light incoming hole, one second light incoming hole, one reflector module, one light sensor and one image generating module. The first light incoming hole is set in front of the casing for light from the front of the casing to be input, and the second light incoming hole is set in back of the casing for light from the back of the casing to be input. The reflector module is installed inside the casing to reflect light input via the first light incoming hole or the second light incoming hole. The light sensor is set inside the casing to sense and measure the light from the reflector module. The image generating module is set inside the casing to generate a picture with the sensor signal.

The invention discloses a welded joint fatigue life prediction method considering residual stress evolution. The method comprises the following steps: carrying out a cyclic load fatigue test on base metal; substituting into a parent metal fatigue prediction model considering the average stress, and fitting to obtain material parameters; adopting a sequential coupling method to perform thermal simulation on the weld joint of the welding joint, and determining a welding state residual stress field in the welding process; establishing a cyclic constitutive model based on the stress-strain data ofthe parent metal; simulating a redistribution behavior of the residual stress under a cyclic load, and simulating a maximum steady-state tensile residual stress value [sigma]<re-max>; and correctingthe maximum stress value [sigma]<max> to be the sum of the maximum stress value [sigma]<max0> and the maximum steady-state tensile residual stress value [sigma]<re-max> when the residual stress is notconsidered, and establishing a welded joint fatigue life prediction model considering residual stress evolution. According to the method, the fatigue test is combined with finite element calculation,and the welded joint fatigue life prediction model considering residual stress evolution is established, so that the fatigue life of the welded joint is scientifically predicted.

The invention provides a color film substrate and a manufacturing method and a display device thereof, relates to the technical field of display and solves the problems of the prior art that the cost is high when a halftone or gray tone mask plate is used for arranging a spacer film layer and the size of an auxiliary spacer is limited when an ordinary mask plate is used. The color film substrate comprises a transparent substrate, a black matrix film layer and a color film layer which are arranged on the transparent substrate, and a spacer film layer arranged above the block matrix film layer, wherein the spacer film layer comprises a first spacer and a second spacer; and the color film layer is positioned under the spacer film layer, covers the whole or partial area where the first spacer is arranged, and does not cover the area where the second spacer is arranged. The invention is suitable for the manufacturing field of a liquid crystal display device.

The invention relates to a sludge bulking control expert system for diagnosis based on a filamentous bacteria population structure. The invention relates to an expert system performing incentive recognition and fault diagnosis on the basis of the composition and the variation of a filamentous bacteria population structure, which can be applied to the sludge bulking control in the process of biological sewage treatment, and solves the problem of easiness of misjudge in the prior art as sludge bulking is analyzed and judged by human beings. The expert system comprises a knowledge base, a database, an inference engine and an explanation facility, wherein the knowledge base is used for storing knowledge for diagnosing sludge bulking based on the filamentous bacteria population structure and corresponding control strategies, regularly establishing the variation based on the variety of emergent dominant filamentous bacteria and sludge settling characteristics, and updating the knowledge base and adding accident samples in time; the database is used for storing sludge sampling raw data and offline detection data acquired by an online monitoring instrument, and ecological and morphological characteristics and secondary data acquired in the process of filamentous bacteria identification; the inference engine is used for determining the causes of sludge bulking through knowledge reasoning in the knowledge base; and the explanation facility is used for explaining reasoning results given by the interference engine.

The invention relates to a polysilicon film low-temperature physical vapor deposition device and a method thereof, belonging to the technical field of semiconductor materials. By the deposition device and the method thereof, the low-temperature polysilicon film of which the host crystal orientation is (111), the grain diameter is tens of nanometers, and the proportion of the polysilicon part exceeds 80% can be generated by the steps of sample preparation, pretreatment for sample preparation, deposition, post-treatment, sample taking and the like. The physical vapor deposition method is substituted for the current plasma enhanced chemical vapor deposition technology, and the polysilicon film is directly deposited under the precondition of not using SiH gas. Because the substrate (simple glass) with low cost has a lower melting point, the polysilicon film can be directly deposited on the simple glass substrate under the condition of relatively low temperature (less than 300 DEG C), thus avoiding the defect of high cost of the formerly used substrate, and greatly improving the competitiveness.

The invention provides a sport coaching method and system, and relates to the technical field of computers. The method includes the steps of receiving myoelectric parameters collected by a plurality of myoelectric sensors of a user, determining the current sport state of the user on the basis of the myoelectric parameters, generating sport coaching information according to the current sport state, and sending the sport coaching information to a terminal. By means of the method and system, the sport state of the user can be precisely detected, fine sport coaching can be provided for the user, and cost is reduced.

The invention provides a railway vehicle fault diagnosis device. The railway vehicle fault diagnosis device comprises a vibration sensor,a temperature sensor,a vibration signal processing module,a temperature signal processing module and a control device; the vibration sensor is arranged on an axle box of a railway vehicle and used for obtaining a vibration signal when the vehicle runs; the temperature sensor is arranged on a brake of the railway vehicle and used for obtaining a temperature signal of the brake when the vehicle runs; the vibration signal processing module is in wireless connection with the vibration sensor and used for processing the obtained vibration signal,extracting fault feature information of the vibration signal and conducting fault detection; the temperature signalprocessing module is in wireless connection with the temperature sensor and used for processing the obtained temperature signal,predicting the change trend of the temperature signal and conducting fault detection; the control device is connected with the vibration signal processing module and the temperature signal processing module and used for receiving fault detection results of the vibration signal processing module and the temperature signal processing module and giving alarm messages when it is detected that faults occur. The railway vehicle fault diagnosis device is high in reliabilityand adaptability.

A multi-channel waterproof plugging method for a thick and large raft foundation dewatering well, using a steel casing with a water stop ring and an end blocking plate and an inner drainage grouting core pipe to pour expansive concrete in the steel casing as the first One-step sealing; use cement slurry to quickly inject into the pores of the gravel filling body in the dewatering well and the surrounding soil body to form a cement slurry filling body as the second waterproof sealing; use high-strength cement-based grouting material and sealing material filled at the top of the steel casing The steel flange blocking plate on the top of the steel casing is used as the third waterproof sealing to realize three sealing measures, the success rate of the first sealing is high, and the hidden danger of leakage caused by the failure of sealing and the cost caused by the secondary treatment are avoided high and low efficiency. And it does not affect the overall precipitation operation of the foundation, and has little impact on the construction of the main structure.

The invention refers to a kind of oligopolynucleotide micro-array chip and the manufacturing method. The oligopolynucleotide probe is fixed on the base piece through a universal oligopolynucleotide segment and forms micro-array chip. The universal oligopolynucleotide chain may be embellished by special group (such as amido), then compounds with unnembellished oligopolynucleotide probe in centrifugal tube and forms double-chain. Finally it is fixed on specially worked glass piece or other material (such as aldehyde group) through sample applicator and forms the micro-array chip. Likewise, the universal oligopolynucleotide can be synthesized onto glass piece or other material through in situ synthesis technology, then uses the sample applicator to spot the unembellished oligopolynucleotide probe onto the glass piece or other material.

The invention relates to a multi-toner cartridge and multi-transfer printing print system for office equipment, which is characterized by comprising a plurality of groups of toner cartridges, toner cartridge drawing mechanisms matched with the toner cartridges, a plurality of groups of transfer printing mechanisms with the same structure, and a laser scanning unit comprising a plurality of groups of laser scanners, wherein a main-control unit comprises a main control chip and a peripheral circuit; the main control chip controls the laser scanners through a plurality of LSU control logic circuits, andcontrols charging voltage, development voltage and transfer printing voltage of a plurality of high-voltage circuits through a plurality of high-voltage control logic circuits; the plurality of high-voltage circuits are respectively connected with a plurality of OPC to perform high-voltage control; and the multiple toner cartridges and multiple transfer printing mechanisms can perform printing at the same time, so that toner cartridges of different colors can be conveniently changed according to various needs, the print cost is low, the size is small, the mounting is convenient, the number of the toner cartridges, the transfer printing mechanism components and the laser scanners can be increased as required, and multi-color printing is realized. The print system can be widely applied to printers, copying machines and fax machines.

The invention discloses a method and device for predicting the sound insulation performance of an automobile metal plate part assembly with a plug. According to the method and device, the sound insulation performance of a perforated plate part with no to-be-tested plugs and the sound insulation performance of a perforated plate part with a to-be-tested plug are detected and calculated, so that thesound transmission loss of the to-be-tested plug can be obtained; the sound transmission loss of a non-perforated plate part is detected, so that the sound transmission loss of the non-perforated plate part is obtained; the sound transmission loss of a to-be-predicted metal plate part assembly is calculated according to the sound transmission loss of the to-be-tested plug and the sound transmission loss of the non-perforated plate part; and thus, the sound insulation performance of the metal plate part assembly is rapidly and accurately predicted, and the problems of high cost and long perioddue to the fact that a metal plate part assembly is mounted can be solved, and efficiency is improved.

The invention relates to a manufacturing method of a sandwich plate, comprising the following steps of: 1, providing a plurality of prepregs, collocating the prepregs according to required thicknesses, and coating release films on double surfaces; 2, heating and pressing the prepregs with the double surfaces coated with the release films through a pressing machine; 3, when the prepregs are in high-temperature molten states and start to carry out curing reaction, stop heating before materials are completely cured, wherein the prepregs already reach a procuring stage at the time so as to become insulating reinforcing plates with lower curing degree; and 4, substituting the insulating reinforcing plates with lower curing degree for the prepregs to be used for manufacturing the sandwich plate so as to manufacture the sandwich plate with uniform interlaminar thickness. The invention substitutes the insulating reinforcing plates with lower curing degree for the prepregs to be used for producing the sandwich plate, thereby not only solving the problems of large gummosis of press plates and the like and having good interface bonding force, but also fitting to the low-carbon economic concepts, i.e. low cost, low energy consumption and low pollution.

The invention relates to the field of information processing, and discloses an information release method and device. The information release method comprises an information release template containing wildcard fields is generated; a preconfigured information file containing data needed by information release is imported; the information file is traversed, corresponding data in the information file is matched with all the wildcard fields, and pre-released information is generated. According to the information release method and device, batched release of the information can be achieved, and by adopting the wildcards and an Excel file, the degree of freedom of maintenance and editing of the information release template is extremely high; meanwhile, the problems that due to an artificial importing mode or a traditional file importing mode, the cost is high, and abnormal risks exist can be avoided.

The invention discloses a printed battery production line. The production line comprises a main production line as well as a first auxiliary production line and a second auxiliary production line positioned on two sides of the main production line, wherein intermediate products generated in the first auxiliary production line and the second auxiliary production line are combined with intermediate products in the main production line to generate paper batteries or intelligent labels; a self-adhesive printing device, a second drying device, a third laser die cutting device, a first lamination device, a second electrolyte solution adding device and a second lamination device in the first auxiliary production line, the second auxiliary production line and the main production line form a paper battery production mechanism used for producing the paper batteries; and a negative electrode printing device and a third drying device in the first auxiliary production line and the second auxiliary production line as well as the self-adhesive printing device, the second drying device, a first electrolyte solution adding device, the second lamination device and a battery and antenna connection device in the main production line form an intelligent label production mechanism used for producing the intelligent labels.

The invention relates to a device converting heat energy into mechanical energy, in particular to a Kalina cycle and Rankine cycle coupled medium and low temperature waste heat utilizing system. The Kalina cycle and Rankine cycle coupled medium and low temperature waste heat utilizing system comprises a generator, a separator, a steam turbine, an absorber, a first condenser, a preheater, an evaporator, a first working medium pump, a second working medium pump, a pressure reducing valve and a second condenser. Compared with the prior art, the Kalina cycle and Rankine cycle coupled medium and low temperature waste heat utilizing system has the advantages that the Kalina cycle and the Rankine cycle are coupled, and the cost of the system is reduced; the Rankine cycle secondarily absorbs wasteheat and the heat of a dilute solution of the Kalina cycle generator, the discharging temperature of waste heat is reduced while waste heat utilization of the Kalina cycle is ensured, and the energyutilization efficiency of the system is improved.

The invention discloses a method and device for determining the state of a parking space, and the method comprises the steps: obtaining a parking space and a unique number, which are corresponding toeach LIFI module in a garage; judging whether there is a target LIFI module building communication connection with a target vehicle or not; determining that a target parking space corresponding to thetarget LIFI module is occupied by the target vehicle when the target LIFI module builds communication connection with the target vehicle. According to the scheme of the invention, the method achievesthe real-time detection of whether the target LIFI module builds communication connection with the target vehicle or not according to the parking space and unique number corresponding to each LIFI module. If the target LIFI module builds communication connection with the target vehicle, it indicates that the parking space corresponding to the connected target LIFI module is occupied by the targetvehicle, thereby avoiding the high cost caused by a complex construction project, making the most of the high fidelity advantages of the LIFI modules, and improving the detection accuracy and safetyof parking spaces.

The invention discloses an automatic assembly machine for rack type short cylindrical roller bearings, which comprises a supply disc, a cylindrical roller assembly mechanism, an assembly mold and an electric cabinet. The cylindrical roller assembly mechanism comprises an assembly push rod, a propelling push rod, two sleeves, two racks and two transmission gears, the two sleeves are provided with pressure springs, the two transmission gears respectively control actions of the two racks and are meshed with the racks, one end of the assembly push rod and one end of the propelling push rod are respectively fixedly connected with the ends of the two racks, both an extending end of the assembly push rod and an extending end of the propelling push rod are inserted in the pressure springs of the sleeves, and the propelling push rod and the assembly push rod are angularly arranged on one side of the assembly mold. Gear and rack transmission is used for controlling reciprocating motion of the push rods so as to push rollers to enter a bearing inner raceway, so that the bearing rollers are assembled by workers conveniently, problems that cost is high, efficiency is low, and super-finishing oil films easy to be collided with the rollers scratch the surfaces of the rollers in manual assembly are prevented, and the quality of products is greatly improved.

The invention provides a wireless temperature measuring system and a measuring method of a rotary device and belongs to the field of industrial automation. The measuring system and the measuring method solve the problems that according to an existing temperature measuring system and method, a conductive sliding ring is high in manufacturing cost and prone to abrasion and measurement precision is influenced. The measuring method includes the steps that a wireless power supply sending circuit converts electric energy supplied by a direct-current power supply into electromagnetic energy; a wireless power supply receiving circuit receives the electromagnetic energy in a wireless transmission mode and converts the electromagnetic energy into electric energy; a testing computer sends a temperature acquisition instruction to a second wireless signal receiving and sending circuit; a temperature measuring circuit receives temperature information, acquired by a temperature sensor in real time, of a movable mechanism and converts the temperature information into a temperature digital signal; a first wireless signal receiving and sending circuit receives the temperature digital signal and converts the temperature digital signal into a wireless signal; a second wireless signal receiving and sending circuit receives the wireless signal in a wireless transmission mode and converts the wireless signal into a digital signal; the testing computer displays and stores the digital signal in real time. The system and the method avoid adverse influences of the conductive sliding ring on temperature measurement.

The invention discloses a pollution-free treatment apparatus for municipal construction engineering wastes. The apparatus comprises a first supporting frame, a second supporting frame, a masonry crusher, a broken stone conveyer and a waste metal separation conveyer, a sandy soil separation sieve plate is arranged on the first supporting frame, a sandy soil feeding holder is arranged at the lower side of the sandy soil separation sieve plate, a sandy soil recovery tank is arranged at the lower side of the front end of the sandy soil feeding holder, the broken stone conveyer is arranged on the second supporting frame, the waste metal separation conveyer is arranged at the lower side of the broken stone crusher, a waste metal discharging holder and a waste metal recovery tank are arranged atthe rear side of the waste metal separation conveyer, the broken stone conveyer is arranged at the lower side of the waste metal separation conveyer, a broken stone discharging holder and a broken stone recovery tank are arranged at the right side of the broken stone conveyer, and a broken stone baffle plate is arranged at the front side of the left end of the broken stone conveyer. Construction wastes with various different properties are concentrated and recovered, so high cost brought by intensive breaking and sorting of the construction wastes is avoided, resources are saved, and the utilization rate of the construction wastes is improved.

The invention discloses a circuit device for acquiring the number of the rotating circles of a motor. The circuit device includes a microprocessor (1), a filtering/shaping circuit (2), a locked-rotor sampling circuit (3), a power source conversion circuit (4), a locked-rotor sampling resistor (R) and a switching loop (QH). According to the circuit device of the invention, the switching loop is composed of a high-frequency transformer, a motor, an A relay and a B relay; and the power source conversion circuit converts 12V voltage of a vehicle power source into 5V voltage which is supplied for the microprocessor. According to the technical scheme of the invention, signals generated by electrified rotation and inertia rotation of the motor are fed back to the microprocessor through the switching loop, so that the microprocessor performs counting processing, and therefore, the circuit device for acquiring the number of the rotating circles of the motor has the advantages of no signal loss as well as being accurate and reliable, and can assist in reducing cost.

The invention discloses stripping and cutting equipment for an insulating outer layer of a conductive wire. Main machine body, a circular cavity is formed in the main machine body; a circular cavity is rotationally formed in the circular cavity; grooves which are uniformly distributed are formed in the periphery of the cylinder; a feeding cavity is formed in the left side of the circular cavity; the upper side and the lower side of the feeding cavity are each provided with two sets of rolling wheels. The device can work through the power motor; the rolling wheel drives the wire to enter the cylinder; the motor drives the cylinder to rotate and drives the cutter to move up and down to cut off the wire, the whole process is extremely high in linkage, the problems of high cost and large matching error caused by driving of a plurality of motors are avoided. Meanwhile, after the wire is cut off, the insulating outer layer of the wire can be peeled off through sliding of the sliding plate, and multiple purposes of one machine are achieved.

The invention relates to a tooling for chip cutting experiment and method. The tooling comprises a microwave probe station, a connecting piece and a cutting blade; the microwave probe station comprises a base and a mechanical shift device in sliding connection with the base; the other end of the mechanical shift device is well matched with one end of the connecting piece and used for driving the connecting piece to move, the cutting blade is fixedly installed on the other end of the connecting piece, and is located above a chip. The microwave probe station is used for finishing the chip cutting experiment, the tooling disclosed by the invention is suitable for organizations with small chip usage amount or the chip experiment research, the high cost caused by purchasing a dedicated chip cutter is avoided, and the experiment cost is saved; and furthermore, the tooling is flexible in operation, and suitable for some specific chip cutting experiment.

The invention provides a downward gas extraction drilling hole screw-type drainage device and method, and relates to the technical field of gas extraction. The drainage device comprises a rotating component, an explosion-proof power device, a connecting assembly and a water collecting tank, wherein the rotating component comprises a plurality of sections, each section comprises an outer pipe and an inner spiral pipe, and the explosion-proof power device drives inner spiral pipes to rotate; a spiral drill rod structure is arranged in the inner spiral pipes, a deep groove ball bearing is arranged between the inner spiral pipes and an outer pipe, and the inner spiral pipes rotate in the outer pipe; and the connecting assembly comprises a sleeve and inner nuts, outer pipes between the sectionsof the rotating component are in threaded connection with each other through a connecting sleeve, the inner spiral pipes are connected through the inner nuts, the water collecting tank is connected with the outer pipe end at a drilling hole opening, and a water outlet is formed in the water collecting tank for drainage. The invention further provides the method for conducting gas extraction drilling hole drainage by means of the device. According to the device and the method, the technical problem that drainage of a downward gas extraction hole with larger length is difficult is solved; and in addition, the device and the method have the advantages of being convenient to operate, good in drainage effect and the like.