33results about How to "Improve the success rate of extraction" patented technology

The invention relates to a PRI interval information-based radar signal sorting method and system, and belongs to the field of radar signal processing; the method comprises the steps: carrying out the multi-stage difference calculation of an arrival time sequence of a mixed overlapping radar pulse flow, and generating a difference sequence; determining a neighborhood radius and a density threshold value of a density clustering algorithm according to distribution characteristics of the difference value sequence; according to the neighborhood radius and the density threshold value, performing density clustering on the difference value sequence by using a density clustering algorithm to obtain a plurality of clustered clusters; calculating the extraction priority of each cluster, and generating PRI interval information to be extracted for the cluster with the highest priority; extracting a radar pulse signal corresponding to the PRI interval information to be extracted by adopting an improved pulse sequence search method, wherein the improved pulse sequence search method is a pulse sequence search method with tolerance control. According to the method, the PRI estimation precision and the information dimension can be improved, so that the sorting success rate of the radar pulse signals is improved.

The invention relates to a variable-speed transverse box movement double-spiral shaft of a pot seedling transplanting machine, and belongs to the field of agricultural machinery. Two groups of spiral grooves with reverse spiral directions, equivalent pitches, continuity and same width are formed on the surface of a shaft body, the difference between phase angles of the two groups of the spiral grooves is 180 degrees, the two groups of the spiral grooves are in head-to-tail connection, the smooth transition is formed at the joint, and the spiral line of each group of the spiral groove can form a rotated half-cycle variable trigonometric function curve, a parabola or a double-curve periodic curve after expansion. The variable-speed transverse box movement double-spiral shaft disclosed by the invention can realize the purposes of reducing the box movement speed and reducing the box movement quantity when a transplanting mechanical part of the transplanting machine is used for taking a seedling plate from a seedling pot, as well as accelerating the box movement speed and increasing the box movement quantity after the seedling plate is taken out, further improve the success rate of taking out the seedling plate, and reduce the damage to the seedling plate.

The invention discloses a combined interacanal fractured instrument extracting device and relates to the field of medical apparatuses of the dental department. The combined interacanal fractured instrument extracting device comprises a hollow handheld rod, a needle connecting seat is connected to the lower end of the hollow handheld rod, a needle sleeve is arranged on the needle connecting seat, an inner core component is arranged in the hollow handheld rod and comprises an inner core fixing seat arranged in the hollow handheld rod, a push boosting slider capable of enabling the inner core component to reciprocate is arranged on the outer portion of the hollow handheld rod, the inner core fixing seat is provided with an inner core fixedly, and the inner core extends into the needle sleeve through the needle connecting seat and is capable of moving in the needle sleeve. The combined interacanal fractured instrument extracting device has the advantages that the combined interacanal fractured instrument extracting device is compact in structure, high in stability, humanized in design, convenient and labor saving to use and locally replaceable in case of damage to an extraction end, can be used by being viewed under a microscope directly and can serve as an MTA (mineral trioxide aggregrate) biological material delivery device.

The invention discloses a mobile application APK (Android Package) file embedded privacy policy extraction method and belongs to the field of Android mobile terminal application software analysis and detection. The method specifically comprises the following steps of firstly, selecting a to-be-detected APK file for decompiling and rule matching, obtaining all URL (Uniform Resource Locator) links, respectively crawling each webpage content, and extracting feature words in a privacy policy text; meanwhile, collecting feature words of a plurality of webpages to train a dichotomy model in advance; inputting feature words of the to-be-detected APK file into the trained dichotomy model one by one, judging whether a privacy policy page exists in an output result or not, and if yes, outputting a privacy policy and ending; otherwise, performing automatic dynamic testing, monitoring request addresses in the traffic, extracting corresponding URL links, crawling contents of pages to extract feature words, inputting the feature words into a dichotomy model for judgment, and ending till a privacy policy page is found or a set traversal depth is exceeded. According to the method, dynamic and static tests are combined, so extraction efficiency and the success rate of privacy policies are improved.

The invention discloses an extraction method of adipose-derived stem cells. The extraction method comprises the following steps: acquiring adipose tissues, treating the adipose tissues with a surfactant, treating the adipose tissues with an adipose tissue protectant, performing inoculated culturing and the like. The used surfactant comprises the following components in parts by weight: 0.3 part ofhydroxyethyl starch 550, 1 part of lecithin. 0.1 part of polysorbate and 98.6 parts of a PBS solution. The used adipose tissue protectant comprises the following components in parts by weight: 0.2 part of trehalose, 0.05 part of reduced glutathione, 2 parts of human albumin, 1 part of histidine, 0.025 part of sorbic acid, 0.5 part of VC, and 96.2 parts of a carbohydrate and electrolyte injection.The extraction method can effectively solve the problems that in the extraction process of the adipose-derived stem cells, due to the existence of fat droplets, the cell attachment rate is low and the cell extraction rate is low.

The invention discloses a digestive tract foreign matter taking-out device, which comprises a stretching-in pipe. A spline shaft is arranged in an inner cavity of the stretching-in pipe, a mounting plate is fixedly connected to the bottom of the spline shaft, an annular tooth rack is fixedly connected to the bottom of the mounting plate, and a clamping mechanism is movably connected to the position, opposite to the annular tooth rack, of the outer wall of the stretching-in pipe. The three sets of clamping mechanisms are evenly distributed at the bottom of the stretching-in pipe, and each clamping mechanism comprises a mounting frame. Due to the synchronous outward expansion effect of the four sets of arc-shaped plates, the inner wall of the opening air bag is opened and deforms, so that the opening air bag supports the peripheral inner wall of the digestive tract clamped by foreign matter in the digestive tract of a patient, the inner wall of the digestive tract is opened through the opening air bag, the extending height of the extending pipe is limited, and the stability of the extending pipe is improved, and the phenomenon of secondary injury caused by instability when the foreign matter is clamped due to the fact that the stretching-in tube continues to deviate after stretching into the digestive tract is prevented.

The invention discloses a combined-type flexible ureteroscope sheath part capable of conducting continuous lavaging and sucking. The combined-type flexible ureteroscope sheath part solves the problemthat blood clots and broken calculi in the kidney cannot be effectively discharged in ureteroscopic lithotripsy. A continuous lavaging system formed by an inner sheath canal and an outer sheath body has the advantage of efficiently removing the calculi, the operation success rate for the first time is increased so that the ureteroscopic lithotripsy can process the renal calculi of 2 cm or above, and the operation indication is expanded. According to the technical scheme, the combined-type flexible ureteroscope sheath part comprises the outer sheath body, the inner sheath pipe is detachably andcombinedly arranged in the outer sheath body, and the working end of the inner sheath pipe stretches out of the working end of the outer sheath body for a certain length; a negative pressure suctionopening is formed in the non-working end of the outer sheath body; the outer sheath part and the inner sheath pipe form the continuous lavaging system of which the inner sheath pipe conducts continuous lavaging inwards and the outer sheath body conducts continuous negative pressure suction, and foreign matter in the ureteroscopic lithotripsy is taken out.

The invention relates to the technical field of medical apparatus and instruments, and in particular relates to a syringe needle which is characterized in that the inner wall of the syringe needle is of a concave-convex rough surface structure. The syringe needle has the beneficial effects that the structure of the inner wall of the syringe needle is changed, under B-ultrasonic localization, a needle part of a puncture needle enters the lump part, and the concave-convex rough surface structure of the inner wall of the needle part enables the needle part to have lateral shear force in the rotation process through multi-direction lifting and inserting; in the withdrawing of the needle, the residual rate of the sucked cells on the inner wall of the needle part can be improved, so that enough lesion cells can be sucked, and even more the lesion cells are divided from the root and completely sucked; an operator does not need to pull a needle pintle by hand continuously, and the negative pressure inside a needle tube can be effectively controlled under the coordinated positioning of a baffle and a gap, so that the sucking success rate can be improved, a satisfactory smear is prepared, and the lesion nature is judged.

The invention discloses a full-automatic taking-out control system and method for a gypsum board protective paper joint plate. The full-automatic taking-out control system comprises a general controlprocessing system, an automatic paper connecting unit, a length detection unit, a cutting statistics unit, a cutting information transmission unit, a paper joint cutting length setting unit and an automatic gypsum board sampling device, wherein the general control processing system is used for sequentially controlling the work of protective paper connecting, gypsum board cutting and joint gypsum board removing. The full-automatic taking-out control method comprises the steps of debugging the communication control among the control systems; calculating the corresponding relation between the residual roll thickness of protective paper and the length of the protective paper, and determining the joint position of the protective paper for the first time; determining the length of a joint relative to the tail end of a previous roll of protective paper according to the cutting rule of a gypsum board, and regulating and controlling the joint position of the protective paper for the second time; and determining the sampling length of the gypsum board containing the joint of the protective paper, and removing the gypsum board in the secondary regulation and control of the joint of the protective paper. According to the scheme, the production cost and the maintenance cost are reduced, the stability of the production and the product are improved, and the equipment stability is improved.

The invention relates to a thrombus extraction stent, a thrombus extraction device and a thrombus extraction system. The thrombus extraction stent comprises rigid units and flexible units which are alternately connected. Each rigid unit and each flexible unit are of a tubular structure which can be compressed and expanded in the radial direction. When the same axial force is applied, the flexibleunits are easier to axially compress compared with the rigid units. When the flexible units are axially compressed, the radial sizes of the flexible units are synchronously increased; and the maximumradial size of the axially compressed flexible units can be greater than the radial size of the rigid units. The rigid units are used for supporting, a blood flow channel can be rapidly established when the stent is unfolded, and the pre-dredging function is achieved. When the flexible units are compressed in the axial direction, interval spaces surrounding the rigid units can be formed between the adjacent flexible units, thrombus located in the interval spaces are not cut by the thrombus extraction stent, the integrity of the thrombus is kept, the risk of thrombus disengagement is reduced inthe withdrawing process, the thrombus taking-out success rate is increased, and the thrombus capturing capacity is further improved.

The invention relates to a large-diameter directional long drill hole extraction method for a mining body gushing out of a gas roof, and belongs to the technical field of coal mining. The method comprises the following steps: S1, calculating and determining basic parameters of the large-diameter directional long drill hole of the roof; S2, before working face stoping, drilling to a coal seam roofrock stratum at a large-dip-angle upward pitching; and S3, gradually adjusting the drilling angle through the orientation technology so that the horizontal section of the drilled hole is arranged in the advancing direction of the working face, and then gas extraction is completed. The roof large-diameter directional long drill hole extraction success rate can be increased, the gas concentration ofa working face is reduced, the safety coefficient of the operation environment is increased, and economic benefits are increased.

The invention discloses an NLP-based domain model extraction method for airborne display control system requirements. The method comprises the steps of S1, preprocessing an input requirement text; S2,analyzing and extracting a dependency relationship and a co-exponential analysis relationship in the requirement text; S3, according to a set composed of verb phrases and noun phrases, a dependency item analysis result and a co-reference analysis result, improving the dependency relationship of words to semantic unit dependency, and triggering rules to construct a domain model; and S4, visualizing the domain model constructed in the step S3. Domain model extraction is performed on airborne display and control system requirements according to existing model extraction rules,, the effectivenessof the rules in the aspect of airborne display and control system requirement domain model extraction is demonstrated through experiments, and the method has the advantages of being high in correlation, good in application prospect and the like.

The invention discloses a manhole cover replacing machine. The machine is used for replacing an inspection manhole cover in a road surface and comprises a machine frame; the machine frame comprises two or more hollow upright columns, wherein a movable mounting platform is arranged between the upright columns, a cutter head assembly for rotationally cutting the operation surface is arranged right below the mounting platform, and a bursting and clamping mechanism for bursting a manhole body masonry material and clamping a manhole seat is arranged right below the cutter head assembly; and a firstdriving mechanism for enabling the mounting platform to reciprocate in a vertical direction is arranged at the top end of any upright column, and a second driving mechanism for enabling the cutter head assembly to rotate along a central axis is arranged on the mounting platform. According to the manhole cover replacing machine, the milling and planing of the road surface, the lifting and pullingof the manhole seat and the loading of the manhole cover can be completed at one time, and the problems of insufficient power and rigidity and the like of existing equipment during the operation on the cement road surface with hard texture are solved.

The invention discloses a fan yaw copper sleeve replacement tool. The fan yaw copper sleeve replacement tool comprises a tool base; the tool base is provided with a lubricating oil groove, an air pressure groove and a copper sleeve pulling hole; a spring airbag is fixedly mounted in the air pressure groove; the bottom of the air pressure groove communicates with the lubricating oil groove throughan air way; an extrusion base and an oil injecting base are fixedly mounted at the upper and lower ends of an extrusion lifting rod; multiple oil injecting holes are formed around the oil injecting base; a fixed base movably sleeves the upper part of a lifting lead screw; lifting teeth on two sides are connected with a planet speed reducing gear; and an inner ring of the planet speed reducing gearis engaged with a one-way rotating wheel jaw. The fan yaw copper sleeve replacement tool can easily pull out a copper sleeve from a fan copper sleeve mounting base without needing external auxiliarylifting devices, can add lubricating oil around the fan copper sleeve mounting base in the copper sleeve pulling process, reduces the friction force between the fan copper sleeve mounting base and thecopper sleeve, improves the pulling success rate, and saves both time and labors.

The invention discloses a food container, a liner thereof and an automatic kitchen system. The liner comprises a liner bottom plate, a liner flange, liner connectors and liner internal extension parts, the liner flange is annularly arranged, and the liner flange and the liner bottom plate are arranged at interval in the vertical direction of the main surface of the liner bottom plate; the liner connectors are used for connecting the liner bottom plate and the liner flange; the liner internal extension parts are connected with the liner flange and extend into the liner flange, and the extensionlength of the liner internal extension parts allows a liner lifting mechanism to act on the liner internal extension parts from the inner side of the liner flange so as to lift the liner. The liner has the advantages that the liner can be lifted by the liner lifting mechanism, the container used in food processing is allowed to be multipurpose, and food processing equipment function perfection isachieved.

The invention proposes a minimally invasive bone marrow biopsy sampling needle. The sampling needle comprises a needle tube, first and second needle cores, wherein the tail of the needle tube is provided with a main handle, the tails of the first and second needle cores are provided with auxiliary handles, the front end of the first needle core is provided with a triangular pyramid head, the center of the first needle core is provided with a first channel opened to the tail end surface of the first needle core, three pyramidal faces of the triangular pyramid head are provided with connecting channels communicating with the first channel, the center of the second needle core is provided with a second channel opened to the opposite side, the inner cylindrical wall at a terminal end positionof the front end of the second needle core is provided with a separation cone, a cone tip of the separation cone faces the center of the second needle core, and the separation cone is a triangular pyramid. The sampling needle has the advantages that bone marrow smear examination and bone marrow biopsy can be simultaneously carried out in one puncture, the use is reliable, pains of a patient can beeffectively reduced, and a success rate of bone marrow extraction is high.

The invention discloses improvement and application of an oral cavity swab sample preservation solution. The oral cavity swab sample preservation solution comprises 5-20mM of Tris, 10-50mM of EDTA, 0.1-0.5M of NaCl, 0.1-.05% of SDS and 0.1-2% of sodium hydroxymethylglycinate. The oral cavity swab sample preservation solution also comprises food preservatives nationally licensed to be used. The preservation temperature of the oral cavity swab sample preservation solution is about 37 DEG C, reagents used in a formula of the preservation solution are cheap and fine, and DNA detection rate and stability are improved, so that detection cost is reduced; the formula and production steps are simple and convenient, and the used reagents are good in stability, so that long-term storage of a productcan be facilitated; and the preservation solution adopts common preservatives in foods and daily necessities for inhibiting damage of bacteria on an oral cavity swab sample, the preservatives fully pass through related verification, use security is high, ingredients of the prepared oral cavity swab sample preservation solution can be compatible with a subsequent DNA extraction program, and subsequent DNA extraction is beneficial.

The invention relates to the technical field of medical biology, in particular to a kit for extracting DNA from a human feces sample and an extraction method. The kit comprises a sample preservation solution, a cell lysis solution, a DNA precipitant, a DNA detergent, a DNA extracting solution and a DNA eluent, the sample preserving solution comprises the following components: a trihydroxymethyl aminomethane hydrochloric acid buffer, sodium chloride, ammonium sulfate and ethylenediamine tetraacetic acid, the cell lysis solution comprises the following components: guanidinium isothiocyanate, a chelating agent, dithiothreitol, TritonX-100 and a pH regulator; and the DNA extracting solution comprises guanidine hydrochloride. When the extracting solution is used for extracting DNA from an fecessample, the situation that a DNA adsorption column is blocked in the extracting process is not likely to happen, and the extracting success rate is high. By adopting the extraction method disclosed by the invention, the concentration and purity of the DNA sample solution can be greatly improved, and the extracted DNA sample solution can be well used for methylation detection.

The invention relates to the technical field of mechanical equipment, in particular to a dismantling device of an annular component in a stepped hole. The dismantling device comprises a screw rod, wherein the screw rod sequentially penetrates through an arm-brace fixing disc, a braced pressing seat, a support housing and a locking nut from top to bottom; a plurality of arm-braces are arranged on the circumference of the arm-brace fixing disc and are rotatably connected with the arm-brace fixing disc; the braced pressing seat comprises a movable groove enabling the top ends of the arm-braces tomove towards the screw rod; and a boss is arranged at the bottom end, back on to the screw rod, of each of the arm-braces. The dismantling device is convenient to dismantle and increases the reuse rate of the component in the stepped hole.

The invention discloses a rapid and low-cost method for separating a PCR template from chicken blood. The rapid and low-cost method for separating the PCR template from the chicken blood comprises thesteps that A, blood corpuscle nucleuses are separated from a blood sample, specifically, a fresh and frozen anticoagulant chicken blood sample is added into a 1.5 mL EP pipe, and 4000rpm centrifugation is carried out for one minute and supernatant is removed; and 500 [mu]l sterile water is added into the pipe to stand for one minute, 9500rpm centrifugation is carried out for three minutes, and the supernatant is abandoned; B, the corpuscle nucleuse dissociation is carried out, specifically, a 3-4% chelated type ion exchange resin solution shaken up by the 200 [mu]l sterile water is added intosediment by using a spearhead with the cut tip part, after mixing, water bath at 55 DEG C-57 DEG C is carried out for 30 minutes, then, a dry heat meter is placed in, and heating is carried out at 100 DEG C for 8 minutes; and C, PCR template separation is carried out, specifically, 9500rpm centrifugation is carried out for two minutes, and the supernatant is taken as a PCR template. Compared witha template obtained by using an existing traditional DNA extraction method, the PCR template obtained by using the rapid and low-cost method for separating the PCR template from the chicken blood hassame effects for PCR technology detecting, the operation is simpler and easier to operate, the time-consuming is short (within one hour), the cost is low (about 0.31 yuan / sample), and the PCR template is suitable for various rapid DNA molecular detection experiments carried out by using PCR technology.

The invention discloses a method for extracting a privacy policy embedded in an APK file of a mobile application, which belongs to the field of analysis and detection of Android mobile terminal application software. Crawl the content of each webpage and extract the feature words in the privacy policy text. At the same time, collect the characteristic words of several web pages to train the binary classification model in advance; input each characteristic word of the APK file to be detected into the trained binary classification model one by one, and judge whether there is a privacy policy page in the output result, and if so, output the privacy policy And end; otherwise, conduct automated dynamic testing, extract the corresponding URL links by monitoring the request address in the traffic, crawl the content of each page to extract feature words, and enter the binary classification model to judge until the privacy policy page is found or exceeds the set value End of traversal depth. The invention improves the extraction efficiency and success rate of the privacy policy through the combination of dynamic and static tests.

The invention relates to a large-diameter directional long drilling method for gas gushing out from a mining body, and belongs to the technical field of coal mining. The method includes the following steps: S1: Calculating and determining the basic parameters of large-diameter directional long drilling on the roof; S2: Before mining in the working face, drill the hole upwards at a large inclination angle to the rock formation of the coal seam roof; S3: Use directional technology to gradually adjust The drilling angle is such that the horizontal section of the borehole is arranged along the advancing direction of the working face, and then the gas drainage is completed. The invention can improve the success rate of drainage in large-diameter and directional long boreholes on the top plate, further reduce the gas concentration of the working face, improve the safety factor of the working environment, and increase economic benefits.

The embodiment of the present invention discloses a control system and method for fully automatic removal of gypsum board surface protection paper joints, including a general control processing system, an automatic paper connection unit, a length detection unit, a cutting statistics unit, a cutting information transmission unit, and a paper joint cutting unit. The length setting unit and the gypsum board automatic sampling device, the master control processing system are used to sequentially control the joint of the face paper, the cutting of the gypsum board and the removal of the joint gypsum board; the communication control between the debugging control systems; the calculation of the face paper According to the corresponding relationship between the thickness of the remnant roll and the length of the protective paper, determine the joint position of the protective paper for the first time; according to the cutting rules of the gypsum board, determine the length of the joint relative to the end of the previous roll of protective paper, and adjust the joint of the protective paper for the second time position; determine the sampling length of the gypsum board including the face paper joint, and eliminate the gypsum board with the face paper joint for secondary regulation; this scheme reduces production costs and maintenance costs, improves production and product stability, and improves equipment stability sex.

The invention discloses a web page element searching method and device, and computing equipment. The web page element searching method comprises the following steps: in response to a request of a user for searching web page elements on a Chrome browser, sending a domain name and a URL of a current site to a server side, and then obtaining a template returned by the server side, wherein a target field and an extraction rule of the target field are recorded in the template; when the extraction rule of the target field is absolute positioning, extracting the target field in the current page by using one of an Xpath selector, a CSS selector and an ID selector; when the extraction rule of the target field is relative positioning, extracting a target container in the current page, and extracting the target field in the target container; and taking the extracted target field as a search result of the web page element. The invention also discloses corresponding computing equipment and device.

The invention relates to the technical field of medical apparatus and instruments, and in particular relates to a syringe needle which is characterized in that the inner wall of the syringe needle is of a concave-convex rough surface structure. The syringe needle has the beneficial effects that the structure of the inner wall of the syringe needle is changed, under B-ultrasonic localization, a needle part of a puncture needle enters the lump part, and the concave-convex rough surface structure of the inner wall of the needle part enables the needle part to have lateral shear force in the rotation process through multi-direction lifting and inserting; in the withdrawing of the needle, the residual rate of the sucked cells on the inner wall of the needle part can be improved, so that enough lesion cells can be sucked, and even more the lesion cells are divided from the root and completely sucked; an operator does not need to pull a needle pintle by hand continuously, and the negative pressure inside a needle tube can be effectively controlled under the coordinated positioning of a baffle and a gap, so that the sucking success rate can be improved, a satisfactory smear is prepared, and the lesion nature is judged.

The invention discloses a handwriting track extraction method and device based on image frames, a storage medium and equipment. The method comprises the following steps: acquiring image data of continuous frames acquired by an image acquisition device arranged in an intelligent pen based on handwriting motion; determining a relative displacement between any two adjacent frames of images according to the image data to obtain a plurality of adjacent frame displacements; obtaining an adjacent frame displacement sequence according to the plurality of adjacent frame displacements, and obtaining a movement track of the image acquisition device during the handwriting movement according to the adjacent frame displacement sequence; and sequentially rotating and zooming the moving track to obtain a target moving track, and translating the target moving track according to any coordinate value decoded from the image data on the handwriting plane to obtain a handwriting track. The problem that in the prior art, the success rate is low when the handwriting track is extracted is solved.

The present disclosure relates to a method and device for identifying a telephone number. The method includes: acquiring text information; detecting whether a phone number is included in the text information; analyzing the text information when it is detected that the text information includes a phone number, and determining the The category to which the text information belongs; determine the category to which the text information belongs to the category to which the phone number belongs, wherein the category database to which the text information belongs corresponds to the category items of the category database to which the phone number belongs . The technical solution determines the category of the text information according to the keywords or semantics in the text information, and determines the category of the text information as the category of the phone number, so as to realize the classification of the text information and the phone number, thereby facilitating the user to find the phone number, Save time looking up phone numbers.

The present invention provides a method and system for extracting mobile phone data, including in response to establishing an NFC connection between a data acquisition terminal and a mobile phone terminal, the data acquisition terminal sends a data extraction application to the mobile terminal; the data acquisition terminal is created by a WiFi P2P server In the group, the mobile phone terminal joins the group through the data extraction application, and transmits the mobile phone data to the data collection terminal based on the data extraction service of the data extraction application. This method can realize data extraction from an Android mobile phone through NFC and Wi-Fi direct connection. This data extraction method does not need to open a debugging mode and does not need to connect a data cable, so it is more portable and easy to use. Therefore, the extraction concealment is good. The wireless data extraction method does not need to supply power to the mobile phone, so the device has a strong battery life. The above-mentioned advantages of the wireless extraction device make the device very suitable for mobile data extraction.

The invention relates to the technical field of aircraft assembly, in particular to a portable positioning pin removal device and a using method thereof. The portable positioning pin removal device comprises an outer case, an inner shaft, a base, clamping jaws and force application rods, wherein the inner shaft is in threaded transmission with the outer case; the inner shaft is provided with inner shaft lugs; the force application rods are connected to the inner shaft lugs; the base can realize rotary motion along the outer case; the bottom end surface of the inner shaft is provided with at least one guide groove evenly distributed along the axis; the number of the clamping jaws is the same as the number of the guide grooves; the clamping jaws are provided with clamping jaw bosses; the clamping jaw bosses and the guide grooves form moving pairs; the inner surface of the base is provided with base radial teeth; the lower ends of the clamping jaws are provided with clamping jaw teeth; the base radial teeth are in screw transmission with the clamping jaw teeth; and the front ends of the clamping jaws are provided with arc-shaped wedges. Through the portable positioning pin removal device and the using method thereof, the problems of low efficiency and unstable assembly and positioning of components can be effectively solved. In addition, the labor intensity can be reduced, and the service lives of tools and positioning pins are prolonged.