203results about How to "Realize classified storage" patented technology

The invention relates to an EHV (Extra-High Voltage) power grid fault rule mining method based on a rough set association rule. According to the method, a distributed data mining idea is adopted, historical fault data of an EHV power grid is subjected to fault rule mining by using an association rule mining method based on a rough set theory, a distributed decision table is subjected to attribute reduction by using an attribute reduction algorithm based on an information entropy, and then, an Apriori algorithm in association rules is applied to the decision table, which is subjected to reduction, so as to carry out fault rule extraction. According to the method, the problem of inadaptability to large-data-volume historical fault databases of traditional data mining methods can be solved effectively, the complexity of rule extraction is lowered, and the method has the advantage of high fault rule mining efficiency.

The invention discloses a cleaning and appearance detecting machine and a detecting technology thereof. The cleaning and appearance detecting machine comprises a material belt, a feed-discharge carrying mechanism, a rotary table, a feed-discharge station, a working station, a jig rotation driving mechanism, a jig clamping limiting mechanism, a product cleaning mechanism, a product wiping mechanism and a product appearance detecting mechanism, wherein the material belt is arranged at the outer side part of a rack; at least two products are placed on the material belt at intervals; the rotary table is arranged on the rack; the feed-discharge station and the working station are arranged in the periphery of the rotary table at an interval; product jigs are arranged on the feed-discharge station and the working station; the feed-discharge carrying mechanism is arranged on the outer side of the feed-discharge station; the jig rotation driving mechanism and the jig clamping limiting mechanism are arranged on the working station; the product cleaning mechanism, the product wiping mechanism and the product appearance detecting mechanism are arranged on the working station. The cleaning and appearance detecting machine detects the surface and appearance of a product in a full-automatic manner, and is compact in structural design and high in degree of automation, detecting efficiency and quality.

The invention relates to a garbage can. The garbage can comprises a can body and a cover body, wherein a garbage pouring bin and multiple garbage classification storage boxes positioned at the lower end of the garbage pouring bin and communicated with the garbage pouring bin are arranged in the can body; an infrared scanning error corrector is arranged in the garbage pouring bin; an automatic opening / closing door is arranged at the upper end of the garbage pouring bin; the cover body is provided with an automatic opening / closing door opposite to the garbage pouring bin; the lower end of the garbage pouring bin is communicated with the multiple garbage classification storage boxes through an automatic pouring door; and the cover body is provided with a cloud computing feedback excitation module and a garbage classification scanner above the automatic opening / closing door. The garbage can is based on the network platform, and has automatic scanning and intelligent classifying functions; and the cloud computing feedback module is connected with a property system and a municipal administration center system for providing strong reference for real estates and municipal administration centers to perform such information as a clear period and a clear route, so that the purpose of efficiently using the environmental sanitation resource can be achieved.

The invention discloses a page monitoring method, device and system. When a client is operated abnormally on any webpage rendered by any application server, error information is reported to the application server, an error log of the webpage corresponding to the application type is generated by the application server, a monitoring device can obtain the error log generated by the application server and performs page abnormity analysis, different application servers correspond to different application types, or the client can report the error information to a log collection server, the log collection server generates error logs according to the application types to be stored in a classified mode, and therefore the monitoring device can directly obtain the error log of any application type and performs page abnormity analysis. The monitoring efficiency is improved, and the monitoring cost is lowered.

The invention provides a method and device for storing and reading security logs and a security control system. The method comprises: deploying a database on every server of at least one server; creating at least one event list in each database according to the type of all security logs, wherein each event list is corresponding to one type of security logs; storing the to-be-stored security logs into the corresponding event list of the database, respectively, according to the type of the security logs; defining a timestamp for each security log stored in the event list; and reading the required security logs from the corresponding event list according to the timestamps of the security logs. The device includes: a deploying unit, a creating unit, a storing unit, a defining unit, and a reading unit. The security control system includes: a management module, a collection module, an analysis module and a security log storing and reading device. According to the invention, the speed of storing and reading the security logs can be improved.

The invention relates to a tire stack disassembling device. The tire stack disassembling device comprises an input roll table and an output roll table, and a lifting device and a telescopic propelling device located above the lifting device are sequentially arranged between the input roll table and the output roll table. The lifting device comprises a lifting platform and a hydraulic device controlling the lifting platform to ascend and descend. The telescopic propelling device comprises a piston rod air cylinder, a limiting component and a telescopic end face which is controlled by the piston rod air cylinder to move towards or away from the limiting component. Firstly, the lifting device conveys a tire stack upwards to the moving range of the telescopic end face, wherein under the action of the limiting component, the tire stack can be precisely conveyed to the part between the limiting component and the telescopic end face, and tires in the tire stack can be prevented from sliding in the ascending process; then, the telescopic end face moves towards the limiting component, and the tires on the upper portion of the tire stack are disassembled and then conveyed into the subsequent links through the output roll table. The tire stack disassembling device has the advantages of being high in efficiency, low in cost, easy to maintain, high in adaptability and the like.

The invention provides an automatic waste sorting and compression recycling bin, and relates to the technical field of waste recycling devices. The automatic waste sorting and compression recycling bin overcomes the technical defects that an existing beverage bottle and can compression device cannot conduct automatic sorting and storage precisely on beverage bottles of different materials, and the production cost and maintenance cost are high. The automatic waste sorting and compression recycling bin comprises a bin body. A feed opening is formed in the front face of the box body, a slide way corresponding to the feed opening is arranged in the box body, the bottom end of the slide way is provided with a corresponding roll-off mechanism, a sorting and throw-in mechanism is arranged below the roll-off mechanism, and at least three collection frames are arranged below the sorting and throw-in mechanism. The sorting and throw-in mechanism comprises a fixing material guide plate and a movable turning plate. The movable turning plate is connected with a turning plate drive mechanism which drives the movable turning plate to be in the inclined state or the vertically folding state corresponding to a discharge opening below the roll-off mechanism, a magnet is fixed to the bottom face of the movable turning plate, a material stripping strip-shaped groove is formed in the movable turning plate, and a material stripping push claw corresponding to the strip-shaped groove is arranged below the movable turning plate. By means of the automatic waste sorting and compression recycling bin, nonmetal materials, iron materials and aluminum materials can be distinguished precisely, sorting storage is achieved, later recycling processing is facilitated, product cost is low, and maintenance is convenient.

The invention is applicable to the technical field of refrigeration equipment and discloses an intelligent control system and method for a temperature varying chamber of a three-door refrigerator and the three-door refrigerator. The control system comprises at least two drawer type partitions, a temperature-humidity adjusting device, moisturizing pieces, separators and a control panel, wherein the drawer type partitions are arranged inside the temperature varying chamber and independent from one another; the temperature-humidity adjusting device is arranged among the partitions and used for adjusting the temperature and the humidity of each partition; the moisturizing pieces and the separators are sequentially laminated and arranged inside each partition; the control panel is arranged on the three-door refrigerator and electrically connected with the temperature-humidity adjusting device. According to the intelligent control system and method for the temperature varying chamber of the three-door refrigerator and the three-door refrigerator, the drawer type partitions independent from one another are arranged inside the temperature varying chamber, and the temperature-humidity adjusting device is arranged for adjusting the temperature and the humidity of each partition, so that environment variable parameters of each partition are controllable, and sorting and storing of different articles are achieved; in addition, the temperature and the humidity of all the partitions can be adjusted through the control panel, and then the requirements for environment variables of the articles inside the partitions are met.

The invention discloses a picture classified management system and a picture classified management method. The picture classified management system comprises a picture management module for detecting to-be-classified pictures, and setting keywords for the to-be-classified pictures according to a preset rule; a label management module for creating labels for the to-be-classified pictures with the keywords, and setting picture sets with the same or similar keyword attributes as a father label set, and setting each picture with the keyword set according to the preset rule in the father label set as a sub-label picture, and storing the to-be-classified pictures as the sub-label pictures in the corresponding father label set; an auditing module for auditing whether the to-be-classified pictures are correctly stored as sub-label pictures in the corresponding father label set according to the keywords. The system disclosed by the invention realizes the classified storage of all pictures and classified management on all pictures; and the pictures can be precisely and rapidly matched when publishing an article.

The invention provides a garbage classification method and system, a medium and electronic equipment. The garbage classification method is applied to a sweeping robot and comprises the steps: detecting the shape and the image of a to-be-recognized object, and generating to-be-recognized data; recognizing an object according to the to-be-recognized data; when it is recognized that the object is garbage, recognizing the garbage type to which the garbage belongs according to the garbage classification standard; and storing the garbage of the different garbage types in different partition dust boxes of the sweeping robot in a classified mode. According to the garbage classification method, the current situation that the sweeping robot cannot classify the cleaned garbage is solved; and furthermore, the burden brought to the user can be avoided in the scene of designated garbage classification.

The invention discloses an assistant-cooperated intelligent closet apparatus comprising a storage closet, a control cabinet, an intelligent clothes hanger, an intelligent closet and a display screen. The intelligent closet is arranged on one side of the storage closet and is provided with the control cabinet; the intelligent clothes hanger is arranged on the upper end of the intelligent closet and the upper end of the intelligent closet can be telescopic; the display screen is arranged on one side of the intelligent closet and far away from one end of the storage cabinet; with the arrangements of the intelligent closet and the control center, clothes can be automatically classified and stored; with an amplifying system, clothes can be check in near distance; with a voice system, people can acquire information; clothes can be sorted with a scanning device and a color identifier; sorted clothes can be transmitted with the arrangement of a transmission system; with the display screen and the display screen system, various information can be checked and selected; and the assistant-cooperated intelligent closet apparatus is simply structured and rationally designed, is user-friendly and suitable for promotion and application.

The invention discloses a fingerprint photography processing method and apparatus. The fingerprint photography processing method comprises the steps of obtaining a first fingerprint input by a user when the user requests to use the fingerprint to perform photography; when a fingerprint as same as the first fingerprint exists in a preset fingerprint data, performing the photography and generating a first photo; storing the first photo in a folder corresponding to the first fingerprint; obtaining a second fingerprint input by the user when the user requests to use the fingerprint to extract a photo; and when a fingerprint as same as the second fingerprint exists in the preset fingerprint database, extracting the photo from a folder corresponding to the second fingerprint and displaying the photo extracted from the folder corresponding to the second fingerprint. Through the fingerprint photography processing method and apparatus, classified storage and classified extraction of photos during fingerprint photography are realized.

The invention discloses a community household waste pretreatment and temporary storage workstation which comprises a first isolation bin (1) and multiple rows and multiple columns of waste storage boxes (2) with horizontal moving and lifting functions. Liquid leakage and storage structures (201) are arranged in the waste storage boxes (2); a feeding structure (101) is arranged on one side of the upper part of the isolation bin (1); a crushing device (3) is arranged in the feeding structure; and a disinfectant and preservative spraying device is arranged under the crushing device. The communityhousehold waste pretreatment and temporary storage workstation is further provided with a waste storage box outward-transporting structure (102), a lifting device (5) for lifting a classified waste classifying and holding device (4), and a turnover device (6). The community household waste pretreatment and temporary storage workstation provided by the invention has a joint function of waste classifying, throwing, large-scale temporary storing, has a crushing function, has multiple anti-ferment corrosion and mildew measures, is beneficial to reducing odor generation and emission and preventingfoul-smelling liquid from flowing disorderly, and is clean and environmental-friendly; meanwhile, pretreatment can be provided for a household waste classifying vehicle, so that classification operation can be conveniently carried out; and the problem of inconvenience in treating large waste at present can be solved.

The invention discloses an adjustable intensive medical treatment vehicle. The vehicle is ingenious in structure and powerful in function. First, through built-in multi-group placement mechanisms, theintensive and efficient collection of different medical articles can be achieved, which facilitate storing as well as taking and picking up for medical personnel. Moreover, an infrared induction system is convenient for medical personnel to classify and store different types of medical wastes, which avoids that the exposure of medical wastes pollutes the environment and the medical personnel. Thegarbage in the waste bin can be effectively compressed by an electric pressing mode, which expands the capacity of the waste bin. According to the invention, the defects of the prior treatment vehicle are overcome. The convenience and the safety of the clinical operation can be guaranteed and the vehicle can be popularized and applied in clinical departments.

The invention provides an intelligent classification garbage can. The can comprises an outer can, sub-cans, a top cover, a driving structure and a signal receiving module, wherein at least two sub-cans are positioned in the outer can; the top cover is arranged on the outer can and used for driving the top cover and the sub-cans to relatively rotate so that a top cover throwing hole can be rotatedto corresponding sub-can openings; the driving structure is used for driving the top cover to rotate, so that the top cover throwing hole is aligned with the sub-can openings; and the signal receivingmodule is used for receiving external signals and then transmitting the signals to a main control module, wherein the main control module is connected with the driving structure and controls the driving structure according to signals output by the signal receiving module. The invention further provides an intelligent classification system. By receiving external signals through the signal receiving module, the driving structure controls the relative position between the sub-cans and the top cover, so that the sub-can openings can correspond to the top cover throwing hole, and further differentkinds of garbage can be discarded in the different sub-cans, thus achieving garbage classification.

The invention provides a photograph processing method and device and a mobile terminal. The method comprises the following steps: after a user takes a photograph, obtaining a photograph shot by a camera; detecting whether the photograph contains a figure or not; if the photograph contains the figure, storing the photograph under a first path; and if the photograph does not contain the figure, storing the photograph under a second path. The invention also provides the other photograph processing method and device and the mobile terminal. The above technical scheme is adopted to overcome a technical defect that corresponding management is in lack when the photographs shot by the user are uniformly stored in one file under one path. The technical scheme of the invention is adopted, and the photographs are stored under different paths to realize the classification storage of the photographs. Therefore, when the photographs are looked up, the photographs are searched from the files under a certain path on purpose, and the lookup efficiency of the photographs can be effectively improved.

The invention relates to an intelligent tyre warehousing system and a warehousing method. The intelligent tyre warehousing system comprises a big-batch tyre sorting system and a small-batch sorting system; the big-batch tyre sorting system comprises a big-batch transmission system, a stacking system, a box body transportation system, an intelligent tyre stack unstacking system and a loading system which are sequentially connected; the small-batch sorting system comprises a small-batch transmission system, a box body transportation system, an intelligent tyre stack unstacking system and a loading system which are sequentially connected; the intelligent tyre warehousing system further comprises an information management system, identification codes are arranged on tyres and / or box bodies, and code scanning devices used for identifying the identification codes are at least arranged at the intelligent tyre stack unstacking systems, and feeds back identification results to the information management system. The big-batch tyre sorting system and the small-batch sorting system can operate separately at the same time. All systems co-operate, thereby realizing intelligent and reasonable management on tyres of different batches and types.

The invention discloses a cloud multi-road-point matching designated driving method, a cloud multi-road-point matching designated driving system, a cloud server and a client. The method comprises the steps of transmitting corresponding user information to the cloud server and storing into a user information table by a driver end and a passenger end; transmitting order information to the cloud server and storing the order information into an order pool by the passenger end; sequencing the order information in the order pool by the cloud server according to time priority and storing the order information into a schedule task table; transmitting an order receiving request by the driver end to the cloud server, receiving the schedule task table and randomly selecting one schedule task; moving the schedule task selected by the driver end to a historical schedule task table for storing and updating the schedule task table by the cloud server; transmitting geographical position information to the cloud server by the driver end, correlating the received geographical position information with the current schedule task of the corresponding driver end by the cloud server, updating the current schedule task state in real time and transmitting the current schedule task state to the passenger end until the schedule task is finished.

The invention provides a drawer of a refrigerator and the refrigerator. The drawer of the refrigerator comprises a drawer body and partition plates. The drawer body is in the shape of a box with an upper opening. The partition plates are vertically arranged in the drawer body. A containing cavity of the drawer body is divided into multiple cavity bodies by the partition plates. According to the drawer of the refrigerator, the partition plates are arranged on the drawer body, the containing cavity of the drawer body is divided into the multiple cavity bodies, and different kinds of food are stored in a classified mode; on one hand, the food is convenient to take and place, and the food is stored in order and neatly; on the other hand, the phenomenon that different kinds of food are placed in the same drawer, so that tastes of the different kinds of food are mixed is avoided, and the freshness of fruits and vegetables is guaranteed; the partition plates are arranged on the drawer body in a sliding mode, the spaces on the two sides of each partition plate can be adjusted, and a user can conveniently use the drawer.

The invention provides a data storage system and method. A processor determines the type of data according to the use frequency of the data, when the use frequency of the data is within a use frequency range corresponding to a first type storage hard disk, the processor determines the data as first type data, and the first type data are stored by the first type storage hard disk; when the use frequency of the data is within a use frequency range corresponding to a second type storage hard disk, the processor determines the data as second type data, and the second type storage hard disk are stored by the second type storage hard disk; and when the use frequency of the data is within a use frequency range corresponding to a third type storage hard disk, the processor determines the data as third type data, and the third type storage hard disk are stored by the third type storage hard disk, so that the data can be stored in a classified way according to the use frequency of the data. In addition, three types of storage hard disks can be added or the third type storage hard disk can be replaced at any time to store more data, therefore, the storage of the data can be improved and the loss probability of the data can be reduced without reducing the data granularity.

The invention provides a data processing method and system based on a SharedPreferences tool. A storage method comprises the steps that a storage interface setValue of the SharedPreferences tool is called for data storage, wherein a plurality of storage functions are packaged by the storage interface setValue; and the storage interface setValue carries out classified storage on to-be-stored data by calling different storage functions according to types of to-be-stored data. According to the method and the system, various storage data channels are processed, thereby forming the uniform storage interface and a singleton design is globally available. The plurality of storage functions are packaged by the uniform storage interface. When the data is stored, the classified storage of the data can be realized by calling the interface. The whole storage process is simple and fast.

The invention discloses a Cache Tier cache optimization method based on a Ceph cluster. The method comprises the steps: optimizing a cache, obtaining an existing cache pool mode of the Cache Tier, taking the request with the request size smaller than 128k as a small request, and taking the request with the request size larger than or equal to 128k as a large request; executing a writing operation,writing the small request into a cache pool, and writing the large request into a base pool through cache execution proxy writing operation; executing a reading operation, if the cache hits, traversing the object fragment information, and reading the object fragment information is read in a cache pool; after cache reading is finished, reading the data in a base pool; finally, splicing the data read from the cache pool and the base pool, filling and returning to the client. According to the method, the read-write mode of the cache pool is modified based on the processing mode of the requests of different sizes, and the read-write efficiency of the Ceph cluster is improved by optimizing the Cache Tier.

The invention discloses a wet garbage treatment device. The wet garbage treatment device comprises a wet garbage crushing device and a multi-station wet garbage treatment mechanism, wherein the wet garbage crushing device comprises a crushing device positioned below a water outlet of a water tank; the multi-station wet garbage treatment mechanism comprises a fixed disc, a rotating disc and a rotary driving mechanism; a receiving station, at least one extrusion station, at least one drying station and a blanking station are uniformly distributed on the fixed disc in an annular form; a receivingfilter screen is arranged in the receiving station; an extrusion filter screen is arranged in the extrusion station; a drying device is arranged in the drying station; a blanking through hole is formed in the blanking station; garbage treatment buckets are arranged corresponding to the receiving station, the extrusion station, the drying station and the blanking position one by one on the rotating disc; a blanking pipe is arranged above the receiving station; an extrusion device is arranged above the extrusion station; a water receiving and drainage cabin is formed below the receiving stationand the extrusion station; and a wet garbage can is arranged below the blanking station. The invention also discloses a household integrated multifunctional garbage sorting device.

A processing method of traditional Chinese medicine production data disclosed by the present invention comprises the following steps of using a distributed control system (DCS) server to acquire the production equipment data signal possessing the production equipment data and transform the signal into a first digital signal and store in a DCS storage server; using a process analytical technology (PAT) server to acquire a production quality data signal possessing the production quality data and transform the signal into a second digital signal and store in a PAT storage server; using the DCS storage server and the PAT storage server to integrate the first digital signal and the second digital signal into the traditional Chinese medicine production data respectively in an open database connectivity manner; after the traditional Chinese medicine production data enters a traditional Chinese medicine production data storage server via a data channel, orderly using a storage buffer pool to carry out the high-speed storage, using a data copy management device to carry out the copy backup and using a plurality of sub-servers to carry out the classification storage, on the traditional Chinese medicine production data. The processing method of the present invention realizes the acquisition and storage of the traditional Chinese medicine production data, is convenient for the check, retrieval and later analysis of the traditional Chinese medicine production data, and is high in automation degree.

The invention discloses a sorting washer, comprising a housing, and a controller, a clothes storage space, a washing space and a picking space which are arranged inside the housing. A plurality of sorting spaces for storing various clothes separately are arranged inside the clothes storage space. The sorting washer also comprises a first conveyer and a second conveyer; the first conveyer is used to convey clothes inside the sorting spaces to the washing space which is empty; the second conveyer is used to convey the washed clothes from the washing space to the picking space; the controller sets washing parameters according to the types of the clothes entering the washing space. The sorting spaces of clothes are integrated in the washer herein, so that sorted storage of clothes is achieved;sorted washing is carried out automatically, manual operation for sorted washing is not required, the washing process is simplified, washing time is shortened, and washing efficiency is improved.

The invention relates to the technical field of sample storage equipment for geological prospecting, in particular to a sample detection and storage device for geological prospecting of deep soil. Thesample detection and storage device comprises a box body. A rectangular strip is fixedly connected into the box body. A strip-shaped slide groove is formed in the left end of the rectangular strip. Afirst slider is inserted in the strip-shaped slide groove. A movable rod is fixedly connected with the left end of the first slider. A sealing cover is fixedly connected with the top end of the movable rod. Limiting rods are disposed at the left end and the right end of the lower side of the sealing cover. Protruding blocks are distributed on the sides, away from each other, of the limiting rodsfrom top to bottom at equal intervals. Two limiting bins are disposed on the inner wall of the box body. Grooves are symmetrically formed in the left end and the right end of each limiting bin correspondingly. By disposing a stirring piece and a drying bin, air in the box body is dried, and sample storage conditions are met; by disposing a placement plate and a sample take-out mechanism, a samplestorage bin can be conveniently taken out of the device; and by disposing a classification mechanism, the requirement for storing soil of different depths by a user is met.

The invention provides a BIM-based highway bridge management and maintenance PHM system and a BIM-based highway bridge management and maintenance PHM method, which are characterized in that information of each stage of a bridge is integrated based on a BIM technology, and visualization, standardization and informatization of bridge data are realized; the comprehensive monitoring and inspection of the bridge and the environment are realized; bridge diseases are diagnosed and predicted based on the highway bridge disease library, and the function of guiding long-term maintenance of highway bridges is achieved. According to the invention, information classified storage, comprehensive analysis and disease diagnosis and early warning functions are realized, design, construction, operation and maintenance information is associated and stored, and big data processing is carried out on comprehensive monitoring and inspection information of roads, bridges and environments, so that diagnosis and prediction of bridge diseases and evaluation of health conditions are realized; and a decision basis is provided for highway bridge maintenance. The method is a multi-angle, multi-parameter and multi-source data big data analysis method integrating health monitoring and manual inspection, has the advantages of being visual, accurate and efficient, and meets the requirements of highway bridge management.

The invention provides a project domain topic analysis system based on a big data analysis technology. The system comprises a project data entry subsystem, a project domain topic data warehouse, a topic analysis subsystem and a user terminal, the project data input subsystem inputs first project data; the project domain topic data warehouse stores various types of input project data; the topic analysis subsystem performs risk management and control on various project data according to the data in the project domain topic data warehouse, and sends a risk management and control result to the project domain topic data warehouse for storage; and the user terminal sends second project data to be entered to the project domain theme data warehouse on one hand, and obtains an analysis result of the topic analysis subsystem from the project domain topic data warehouse on the other hand. The system can set different operation authorities according to the functions of all departments in an enterprise and the work content of all employees in the enterprise, so that the employees are only allowed to use the system within the set authorities, and the information security of the system is guaranteed.

The invention relates to an intelligent stack disassembling system for tire stacks. The intelligent stack disassembling system comprises a box transporting system, a tire stack carrying device and a tire stack disassembling device, wherein the box transporting system, the tire stack carrying device and the tire stack disassembling device are sequentially connected. The box transporting device is provided with a code scanning device. The tire stack carrying device comprises a lifting device, a clamping device and a supporting device. The clamping device comprises a connecting post and at least two cambered mechanical tongs capable of radially contracting along the connecting post; and the shape of each cambered mechanical tong is matched with the inner wall or the outer wall of a tire stack. The supporting device comprises a horizontal supporting table and at least two horizontal supporting hands capable of expanding or contracting along the center of the horizontal supporting table. The tire stack disassembling device comprises a lifting device and an extensible propelling device; and the lifting device and the extensible propelling device are sequentially arranged between an input roller table and an output roller table. The lifting device comprises a lifting platform and a hydraulic device controlling the lifting platform to lift. The extensible propelling device comprises a piston rod air cylinder, a limiting part and an extensible end face controlled by the piston rod air cylinder and moving towards or backwards the limiting part.