41results about How to "Avoid reuse" patented technology

The invention relates to the technical field of self-destruction acupuncture needles, and discloses a disposable self-destruction sterile cannula acupuncture needle which comprises a cannula body and an acupuncture needle body movably installed in the cannula body, a threaded rod is rotatably installed in the cannula body, and the threaded rod is used for rotating the acupuncture needle body to apply a needle. A pressing sleeve is slidably mounted in the sleeve body and used for driving the acupuncture needle body to move downwards, the pressing sleeve is in threaded fit with the threaded rod, a pressing block is mounted on the pressing sleeve, the upper end of the acupuncture needle body is rotationally connected with the pressing block, and the acupuncture needle body is slidably matched in the threaded rod. And a pressing spring is mounted between the pressing block and the threaded rod. According to the scheme, rotation and descending of the acupuncture needle body can be completed by pressing the pressing sleeve, different movements are achieved through single pressing, the complexity of acupuncture is reduced, and acupuncture treatment is more convenient.

The utility model relates to the technical field of cornus officinalis processing, in particular to a cornus officinalis water bath heating deastringency device which comprises a water bath box, a heating plate is fixedly installed at the inner bottom end of the water bath box, a plurality of net cages are sequentially arranged at the inner upper end of the water bath box from left to right, and lifting mechanisms are arranged on the two sides of each net cage. The lifting mechanism comprises a mounting seat, a lifting cylinder and a lifting plate; and a recycling box is fixedly mounted outside the left side of the water bath box. The recycling box, the filtering mechanism, the containing groove, the ceramic filtering plate and the circulating pump are used in cooperation, large-particle impurities in water can be filtered out through the ceramic filtering plate, bitter and astringent components in the water can be adsorbed through activated carbon, the recycled water can be used for cleaning before dogwood processing, and the recycling efficiency of the dogwood is improved. And the water can be fed into the water bath box again for deastringency, so that repeated use of water can be avoided, and water resources can be saved.

The invention relates to the technical field of polishing, in particular to a polishing disc and a preparation method thereof.The polishing disc comprises a brush disc, a plurality of brush teeth and binding wires, a plurality of assembling grooves are formed in the top of the brush disc, the brush teeth are arranged in the assembling grooves, a plurality of fixing holes are formed in the assembling grooves, and each brush tooth comprises two polishing parts and a connecting part; the two polishing parts are connected through a connecting part, the two polishing parts are mutually overlapped and extend out of the assembling groove, the brush teeth are fixed in the assembling groove through binding wires, the binding wires are wound around the top of the connecting part, and the binding wires are bent downwards along the two sides of the connecting part to penetrate through the fixing holes. A traditional glue fixing mode is replaced with a method for fixing the brush teeth through the binding wires, the health risk caused by glue is eliminated through the design, the fixing strength and durability of the brush teeth are improved through the reasonable structural design, the brush disc can be repeatedly used, the brush disc is suitable for various complex polishing operation environments, and the service life of the brush disc is prolonged. And the requirement of the modern manufacturing industry for a high-quality surface treatment process is met.

The present application relates to high-rise building escape and rescue technical field, disclose a kind of mobile emergency escape equipment for high-rise building, including wheel disc device, damping device, safety belt, further including a box with inner cavity, telescopic handle assembly and universal wheel;Further include several respectively pre-fixed in the upper end and lower end of the window of each room wall guiding component and fixed component, connecting component is provided on the box, temporarily fixed on the wall when escaping, and guiding sliding device is provided on the steel wire, after the box is fixed, the steel wire is pulled up and connected with guiding component, to realize the synchronous limiting and sliding of both. Simple structure, convenient to carry and use, can be moved flexibly and quickly according to the change of indoor fire, and effectively avoid the damage of steel wire, significantly improve the safety performance.

The utility model discloses an anti-over-penetration percutaneous tracheotomy puncture needle, which relates to the technical field of medical instruments, and comprises an injector joint, the end part of the injector joint is fixedly connected with a puncture needle, a blunt hollow tube is inserted in the puncture needle, and the side part of the blunt end of the blunt hollow tube is provided with a through hole; the end, away from the blunt end, of the blunt end hollow pipe extends into the injector connector, and a springback device used for elastically supporting the blunt end hollow pipe is arranged in the injector connector. The utility model has a simple structure, is convenient to operate, reduces the over-wearing probability, adopts a disposable structure, and can avoid repeated use and cross infection. Specifically, a rebound blunt hollow needle is additionally arranged in a conventional puncture needle, so that over-puncture is prevented on the basis that conventional puncture is not hindered. The problem of over-penetration of the puncture needle is solved, and the safety of puncture is improved.

The utility model relates to the technical field of self-adhesive labels, in particular to a self-adhesive label with an anti-counterfeiting characteristic. Comprising a bottom paper layer, a character layer is arranged on the upper surface of the bottom paper layer, an anti-fake layer and a hidden information layer are arranged on the two sides of the upper surface of the character layer respectively, a back glue layer is arranged on the lower surface of the bottom paper layer, and an anti-re-sticking layer used for preventing the self-adhesive label from being completely stripped again and re-stuck is arranged below the back glue layer. According to the self-adhesive label with the anti-counterfeiting characteristic, anti-counterfeiting processing is carried out on public information of a displayed product through the anti-counterfeiting layer, meanwhile, the hidden information layer is used for hiding anti-counterfeiting codes of the displayed product, anti-counterfeiting effects of different degrees are provided for the self-adhesive label, and the anti-counterfeiting effect of the self-adhesive label is improved through the arrangement of the anti-re-sticking layer. The self-adhesive label is effectively prevented from being reused, the anti-counterfeiting effect is further enhanced, the reliable anti-counterfeiting guarantee of use of the self-adhesive label is improved, and therefore the use safety of the self-adhesive label is improved.

The invention discloses a parameter library management method, device and equipment of safety equipment and a storage medium, and relates to the technical field of parameter management, and the method comprises the steps: randomly distributing an encryption key for a safety service business data flow according to a preset key table, and building a key storage address relation mapping table; storing an initial chain variable to a preset chain variable storage position in a distributed manner based on a first packet message of the security service business data flow, and establishing a chain variable storage address relation mapping table; encrypting a security service business data flow according to an encryption instruction, the key storage address relation mapping table and the chain variable storage address relation mapping table; and destroying a corresponding mapping relation in the key storage address relation mapping table and the chain variable storage address relation mapping table according to a destroying instruction. According to the method, the encryption key is randomly distributed, so that the confidentiality of the data is enhanced, the initial chain variables are stored in a distributed manner, the storage resources are fully utilized, and the read-write speed of the data is increased.

The invention is suitable for the technical field of data access, and particularly relates to a single sign-on access method based on timestamp encryption, and the method comprises the steps: obtaining a timestamp and user information; generating a token, and generating a jump link based on the timestamp, the user information and the Token; accessing a financial management system through the jump link, and receiving a jump request by the financial management system; and the financial management system performs parameter verification according to the jump request, authorizes the current access user after the verification is passed, and completes single-point jump. According to the single sign-on access method based on timestamp encryption provided by the invention, during access, the timestamp is added, the timeliness of the access request is verified, the token is recorded after each request succeeds, a single token is prevented from being repeatedly used, the token and the timestamp are subjected to combined encryption, meanwhile, the ciphertext token is independently transmitted, bidirectional encryption is carried out, and the security of single sign-on is ensured.

The utility model discloses a three-dimensional printer convenient to carry, which relates to the technical field of three-dimensional printers and comprises a base, a printing platform is slidably arranged on the top surface of the base, a door-shaped frame is arranged in the middle of the base, threaded holes are formed in the bottom ends of the two sides of the door-shaped frame, and two insertion holes are formed in the two sides of the outer wall of the door-shaped frame. The printing platform is located between the inner walls of the door-shaped frame, a moving rod is slidably arranged on the side wall of the door-shaped frame, and an extruder is slidably arranged on the top face of the moving rod. Fixing blocks are fixedly connected to the two sides of the base. According to the door-shaped frame, when the door-shaped frame is dismantled, only the threaded rod needs to be rotationally dismantled, the inserting rod needs to be pulled out, then the door-shaped frame can be dismantled from the base, when the door-shaped frame is installed, reverse operation is carried out, the door-shaped frame is convenient and rapid to dismantle and install and convenient to carry, and when the door-shaped frame is in a storage state, the transverse door-shaped frame can be fixed through the inserting hole by the inserting rod. Parts are prevented from being damaged due to shaking of the door-shaped frame and the parts on the door-shaped frame when the device is carried, and the safety of the device is protected.

Some embodiments of this application provide a network connection method, apparatus, and communication module. During each network connection attempt, a candidate DNS server is selected from a DNS server list, a DNS request is sent to it, a corresponding DNS response is received, and a communication negotiation process is initiated based on the candidate IP address in the DNS response. If the negotiation fails, another candidate DNS server is selected from the DNS server list, and the above process of sending DNS requests is repeated. That is, by uniformly controlling the domain name resolution process and the communication negotiation process in the network connection process, it is ensured that domain name resolution is performed sequentially through different DNS servers within the same network connection process. Even if a DNS server successfully returns a DNS response, no further DNS requests are sent to it because the communication negotiation for the IP address in that response has failed. This avoids repeated execution of the same failure scenario within the same network connection process, reduces unnecessary time waste, and improves network connection speed.

The invention discloses a method for generating and verifying a dynamic electronic single-trip ticket based on an H5 page, comprising: when purchasing a ticket, a user terminal obtains ticket information, a user identification and a timestamp of an electronic ticket, and uses an asymmetric key to encrypt the ticket information and user identification data of the electronic ticket to obtain an encrypted electronic ticket; the encrypted electronic ticket is combined with a dynamically updated timestamp to generate a dynamic electronic single-trip ticket, a two-dimensional code of the dynamic electronic single-trip ticket is generated, and the two-dimensional code of the dynamic electronic single-trip ticket is locally stored through an H5 page; when verifying, a verification terminal simultaneously scans the two-dimensional codes of three electronic single-trip tickets, randomly selects the two-dimensional codes of two dynamic electronic single-trip tickets for comparison, and obtains a comparison result; if the comparison results are the same, the verification request is rejected, otherwise the two-dimensional code of the electronic single-trip ticket is verified according to the current verification busyness and the user terminal network status.

The utility model relates to the technical field of plastic processing equipment, and disclose a kind of plastic cooling device, cooling efficiency is high and uniform: using the double cooling system of "water cooling+air cooling", water cooling realizes rapid cooling, air cooling accelerates heat dissipation, cooperate with the heat conduction layer of aluminium alloy of cooling cavity inner wall and adjustable deflector, ensure that plastic product inside and outside are uniformly cooled, avoid the deformation problem caused by local overheating or supercooling;High degree of intellectualization: realize the real-time detection and dynamic adjustment of temperature by temperature control system, without manual intervention, reduce labor cost, while ensuring the stability of cooling temperature, improve product quality consistency;Energy saving and environmental protection: water cooling system uses water circulation loop design, cooperate with the filter device in cooling water tank, realize the reuse of cooling water, reduce water resource waste;And through the energy consumption of dynamic adjustment water pump and fan, reduce overall operating cost.

The invention is applicable to the technical field of communication equipment and network security crossing, and particularly relates to a service wireless routing equipment access management system and method based on NFC touch control, a mobile terminal is used for interacting with routing equipment and submitting authentication information to a cloud management server, the cloud management server is connected with the routing equipment, and the routing equipment is connected with the mobile terminal. The cloud management server is used for carrying out identity verification on the mobile terminal based on the authentication information, and the routing equipment is used for receiving a verification result of the cloud management server and establishing connection with the mobile terminal. A touch link integrity verification TCV is introduced, a touch serial number TSID, a terminal random salt value M-Salt, a cloud signature C-Sign and a router random salt value R-Salt are used as hash input, a cloud and a router independently calculate the TCV and compare the TCV, and since the TCV is bound with a terminal side random quantity, a cloud authentication result and a router side random quantity at the same time, the terminal side random quantity, the cloud authentication result and the router side random quantity are combined, so that the terminal side random quantity, the cloud side random quantity and the router side random quantity are combined, and the terminal side random quantity, the cloud side random quantity and the router side random quantity are combined together. Even if an attacker intercepts a part of parameters, the parameters cannot be successfully replayed at other time or on other devices.

The invention belongs to the technical field of resource recovery, and particularly relates to a method for preparing a lithium ferric manganese phosphate precursor by recycling a waste phosphate positive electrode material as well as a product and application thereof. The method comprises the following steps: S1, dispersing waste phosphate positive electrode material powder in a phosphoric acid solution for reaction, and filtering after the reaction is finished to obtain filter residue 1 and filtrate 1; s2, adding a metal source into the filtrate 1 for reaction, continuously heating, and filtering after the reaction is finished to obtain filter residues 2 and filtrate 2; and S3, drying the filter cake to obtain the rhodochrosite type ferric manganese phosphate precursor. The method for preparing the ferric manganese phosphate precursor by regenerating the waste phosphate positive electrode material is more environment-friendly, more elements are recycled, and the comprehensive utilization rate of the elements is high.

An aerosol-generating device is disclosed. An aerosol-generating device includes a body and a cartridge coupled to the body. The cartridge includes: a cartridge body containing an aerosol-generating substance; an absorbing member accommodated in the cartridge body, at least partially exposed to an exterior of the cartridge body, and configured to absorb an aerosol-generating substance; and a lock portion protruding in an inward direction of the cartridge main body and inserted into the absorbing member to be coupled to the absorbing member.

The invention discloses preparation of a magnetic response Pickering emulsion microreactor and application of the magnetic response Pickering emulsion microreactor in enzyme catalysis of ester compounds. The invention provides a preparation method of magnetic agar nanoparticles, which comprises the following steps: reacting prepared Fe3O4 nanoparticles with TEOS and APTMS to obtain Fe3O4-SiO2-NH2 nanoparticles, and then reacting the Fe3O4-SiO2-NH2 nanoparticles with modified agar nanoparticles to obtain the magnetic agar nanoparticles. The magnetic agar nano-particles can be used for constructing a magnetic response type Pickering emulsion, the magnetic response type Pickering emulsion is used for enzyme catalysis of ester compounds, rapid demulsification and oil-water separation of the emulsion can be achieved by utilizing an external magnetic field, and the magnetic agar nano-particles have good reusability and catalytic stability.

The application provides a direct assimilation method and device for ground-based microwave radiometer data, wherein the assimilation method comprises the following steps: establishing an all-weather observation operator for ground-based microwave radiometer observation data; establishing a tangent linear adjoint model of the all-weather observation operator for ground-based microwave radiometer observation data; performing cloud scene identification on the ground-based microwave radiometer observation data to obtain a cloud scene identification result; establishing a background field covariance matrix and an observation error matrix according to the cloud scene identification result, a numerical prediction model background field and the all-weather observation operator; and determining a numerical prediction model analysis field according to the background field covariance matrix, the observation error matrix, the all-weather observation operator and the tangent linear adjoint model of the all-weather observation operator. The method can realize direct assimilation of ground-based microwave radiometer data in a numerical prediction model, thereby effectively avoiding the problems of inversion product error in indirect assimilation and repeated use of model background field information.

The invention discloses an unmanned aerial vehicle authentication and key negotiation system and method based on PUF and chaotic mapping, and relates to the field of information security and cryptographic protocol security. The system generates a unique challenge-response pair through an unmanned aerial vehicle terminal PUF module to complete registration, a four-way handshake mechanism is adopted in the authentication stage, a session key is dynamically generated in combination with Henon chaotic mapping, the number of chaotic iterations is hidden through XOR operation, and identity legality is guaranteed through multi-layer MAC verification. According to the method, secret keys do not need to be pre-stored, the PUF physical unclonability and the chaotic mapping sensitivity are utilized, anonymous authentication and forward security are achieved, lightweight computing adapts to unmanned aerial vehicle resource constraints, various attacks are effectively resisted, and communication security is guaranteed.

This utility model discloses an auxiliary device for hyperthermia in oncology, relating to the field of medical auxiliary technology. To address the time-consuming and labor-intensive use of felt pads and water bags in clinical practice, this utility model designs an auxiliary device for hyperthermia in oncology. Its structural features mainly focus on: a coupling sleeve and a heat insulation structure. The coupling sleeve is securely fitted onto the electrode plate. When the electrode plate is adjusted for treatment, the coupling sleeve can be adjusted accordingly, eliminating the need for medical staff to make adjustments throughout the treatment, thus improving the efficiency of radiofrequency hyperthermia. The coupling sleeve is made of stable medical-grade rubber, suitable for radiofrequency hyperthermia. Multiple layers of flexible and thermally stable heat insulation are filled inside the coupling sleeve. This lowers the skin surface temperature and allows for better adhesion to the skin surface. Through effective heat insulation layering during radiofrequency hyperthermia, excellent heat insulation is ensured, concentrating heat in the treatment area and reducing heat loss and impact on surrounding tissues.

The application relates to the technical field of knowledge graph and discloses an authentication process optimization method based on an AI knowledge graph. Defect source anchor point records are generated based on authentication audit event data of a target authentication task, and a correction closure event knowledge graph is constructed. Correction evidence data is acquired, is associated with the defect source anchor point records, and candidate correction closure relationships are generated. The candidate correction closure relationships are subjected to evidence role allocation in a closure edge role competition mode, correction closure role results are generated, authentication decision anchor points are constructed based on the authentication audit event data, authentication decision anchor point constraints and authentication range inheritance verification are performed on the correction closure role results, joint closure verification results are generated, and authentication process optimization results are generated through path access mapping. The method can distinguish material uploading, role completeness and process access states, and avoids local correction or directly triggering authentication process access by explanation materials.

The utility model relates to pre -filled medicine bottle technical field, concretely relates to provide the device and pre -filled syringe of hidden needle and injection needle head prevent stab protection, and the device includes hidden needle cover, medicine storehouse shell, locking sleeve, medicine bottle support, locking sleeve top rod, and the inside of medicine storehouse shell sets up hidden needle cover, the top of hidden needle cover sets up locking sleeve, and the inside of locking sleeve sets up medicine bottle support, and the inside for setting up pre -filled medicine bottle of medicine bottle support, the bottom of locking sleeve and the top of hidden needle cover mutually inlay, and, the top of medicine bottle support sets up locking sleeve top rod, when not injecting, locking sleeve and hidden needle cover can freely move, after completing injection, locking sleeve top rod can lock locking sleeve, makes hidden needle in pre -filled medicine bottle inside unable to expose. The utility model can realize the needle head of not injecting, and does not influence the removal of hidden needle protection cap, provides the friendly experience to the needle user, after injection, locks hidden needle cover, avoids the exposure of hidden needle, prevents the needle head from injuring the relevant personnel, improves the use safety.

The invention relates to a disaster correlation analysis system and a disaster correlation analysis method, which are used for analyzing simultaneous multiple or chain disasters and specific processes of accident damage in order to carry out preventive disaster management on composite disasters by using an artificial intelligence technology. Besides, in order to improve the understanding degree of analysis results through the embodiment, the correlation analysis results of the disasters are distinguished according to the disasters and accident types, and information is provided in the form of scenes and supervision. In addition, according to the embodiment, disaster networking is used as the most important element of composite disaster analysis, and relevance between disasters is analyzed on the basis of the disasters and the relation between accident types and fragile elements.

The utility model discloses a solid-phase extraction device for electronic atomization liquid, belonging to the technical field of solid-phase extraction. It includes an extraction box. Inside the extraction box, there is an extraction tray. The top of the extraction tray is processed with a plurality of placement holes distributed at equal intervals. An extraction column is placed inside each placement hole. Above the extraction tray, there is a top plate. The top of the top plate is provided with through holes having the same number as the placement holes. A cover plate is hinged at the top of each through hole. The extraction tray is connected to the extraction box through a lifting mechanism. A collection component is arranged below the extraction tray. By arranging a top plate above the extraction tray in the utility model, the multiple cover plates on the top plate correspond to the multiple extraction columns one by one. When the cover plates seal the through holes, they can play a sealing role for the extraction columns, avoiding impurities from falling into the extraction columns and affecting the extraction effect. Moreover, when using the extraction columns, the cover plates can be closed to help the staff quickly distinguish whether the extraction columns have been used, so as to avoid the repeated use of the extraction columns and reduce the workload of the staff.

The utility model discloses an anti-fake sealing cover which comprises a sealing ring and a sealing cover body, the sealing cover body is connected to the sealing ring in a threaded mode, a protruding table is arranged on the sealing ring, and an anti-fake assembly is arranged between the sealing ring and the sealing cover body. Firstly, the sealing ring is arranged on the bottle body, then the sealing cover is in threaded connection with the sealing ring, the sealing cover can seal the bottle, then the protruding table can support the sealing cover, then the anti-fake assembly can avoid counterfeit and shoddy products on the market, the rights and interests of consumers are guaranteed, and the anti-fake assembly comprises anti-fake teeth and an anti-fake groove. A consumer firstly observes whether the anti-fake teeth are just clamped in the anti-fake grooves or not when buying, the consumer can conveniently distinguish true and false, then after the sealing cover is unscrewed, the anti-fake teeth can be broken in the anti-fake grooves, and the sealing cover is prevented from being repeatedly used.

The utility model provides a temporary license plate, and belongs to the technical field of traffic management license plates. The temporary license plate destroying device solves the problem of how to conveniently destroy the temporary license plate while ensuring the mounting stability of the temporary license plate. The temporary license plate comprises a rectangular body, a plurality of tearing lines are arranged on the body, the tearing lines penetrate through the surface of the body, the body comprises a paper layer, a reflective film made of a transparent material and capable of reflecting light and an adhesive film made of a transparent material and having viscosity, and the paper layer is arranged on the surface of the body. The reflective film is positioned between the paper layer and the adhesive film, and the reflective film is fixedly connected with the adhesive film and the paper layer respectively. According to the temporary license plate, the temporary license plate can be conveniently destroyed while the temporary license plate is stably mounted.

The utility model discloses an easy folding type double-valve polypropylene combined cover structure for a plastic container, which comprises a cover body, a top platform is arranged at the top end of the cover body, mounting cylinders are symmetrically arranged at the top end of the top platform, easy folding handles are arranged at the top ends of the mounting cylinders, inner cavities of the mounting cylinders penetrate into the cover body, and rubber plugs are arranged in the mounting cylinders. The top end of the top table is provided with an anti-mistaken-folding assembly, the anti-mistaken-folding assembly comprises a fixing shaft fixedly installed at the top end of the cover body, the fixing shaft and the top table are coaxially arranged, and two installation cylinders are symmetrically arranged on the two sides of the fixing shaft; in the working process, the two clamping rods are installed at the bottom end of the transverse plate and clamped into the first clamping groove and the second clamping groove respectively, so that the two pressing plates are positioned, the two pressing plates are pressed at the top ends of the two easy-to-break handles respectively, when the easy-to-break handles do not need to be used, the easy-to-break handles are not prone to being broken off, mistaken breaking of the easy-to-break handles is reduced, and the service life of the easy-to-break handles is prolonged. Therefore, the use stability is improved.

The utility model discloses an inspection device which comprises a base, a weighing device is fixedly installed in the base, a vertical plate is fixedly connected to the rear side of the upper surface of the base, a height measuring rod is slidably connected to the front side of the vertical plate in the vertical direction, ear plates are fixedly connected to the rear portions of the two side walls of the base, and the ear plates are fixedly connected to the rear portions of the two side walls of the base. And one of the lug plates is rotationally connected with an unwinding rotating shaft. One end of a non-woven fabric winding drum is pulled to bypass the upper surface of the weighing device and then placed in a crack between a clamping plate and a winding pipe, the winding pipe is driven to rotate through a transmission structure, non-woven fabric is wound on the winding pipe, and at the moment, a part of the non-woven fabric winding drum is laid on the surface of the weighing device. And meanwhile, new non-woven fabric can be laid on the surface of the weighing device again, the whole operation process is rapid and convenient, meanwhile, repeated use of the cloth liner is avoided, and practicability is improved.

The utility model discloses a customs IPPC identification RFID pallet, and relates to the customs IPPC identification pallet technology field, the customs IPPC identification RFID pallet comprises a base plate, the front side of the top end of the base plate is provided with a front support column, the middle part of the top end of the base plate is provided with a middle support column, the rear side of the top end of the base plate is provided with a rear support column, and the outer surface of the middle part of one end of the middle support column is provided with an RFID label. An antenna coil is arranged on the outer side of one end of the RFID tag, and a chip is arranged in the middle of the inner side of the antenna coil. Through the arrangement of the dust shielding disc and the RFID tag, the tray adopts the RFID chip tag, so that information can be quickly identified and read in the later tray circulation process, the operation efficiency of enterprises and customs can be improved, IPPC marks can be prevented from being counterfeited, the marks can be prevented from being repeatedly used and replaced in the later period, the mark content can be quickly updated, and the tray can be recycled and recorded; and the dust shielding disc is adopted, so that dust shielding protection can be conveniently carried out on the RFID tag, and the dust can be prevented from shielding the RFID tag to influence the identification and reading efficiency of the equipment.