3049results about How to "Reduce in quantity" patented technology

The invention discloses a folding wing structure of an unmanned aerial vehicle, which comprises a rotating shaft embedded in a vehicle body, wherein a lower wing elastic sheet and an upper wing elastic sheet are mounted in an inner cavity of the rotating shaft from bottom to top, a first locking block and a second locking block are respectively arranged at the free ends of the lower wing elastic sheet and the upper wing elastic sheet, the first locking block and the second locking block are respectively matched with a first notch and a second notch which are formed in the rotating shaft, the outer side of the rotating shaft is sequentially sleeved with a lower wing and an upper wing from bottom to top, the upper surface of the lower wing and the lower surface of the upper wing are each provided with a groove, the two grooves are oppositely formed to form a torsional spring groove, a torsional spring is arranged in the torsional spring groove, and the upper inner sides of the lower wingand the upper wing are provided with a first locking groove and a second locking groove correspondingly; and the outer side of the rotating shaft is further sleeved with a roller bearing, a baffle isinstalled at the top of the rotating shaft, and the roller bearing is located between the upper wing and the baffle. The processing cost of the unmanned aerial vehicle is reduced, the folding wing structure is insensitive to the structural size, and the folding wing structure can adapt to a more miniaturized barrel-shooting unmanned aerial vehicle.

The invention discloses a matrix type temperature detection system and method based on temperature-sensitive diodes, the problems of complex wiring and large temperature drift of a traditional multi-node temperature measurement system are solved through M * N matrix layout, row and column time-sharing gating and constant current driving technologies, the system adopts an independent column constant current source to ensure the measurement consistency, and a high-precision ADC and a dynamic calibration algorithm are combined, so that the measurement accuracy is improved. And the precision of + / -0.2 DEG C is realized within the range of 50-150 DEG C. The method is particularly suitable for high-density temperature measurement scenes such as battery thermal management, electronic equipment overheating monitoring and the like.

The utility model relates to a heat dissipation and flow guide structure, and provides the heat dissipation and flow guide structure for the charging cabin of the unmanned aerial vehicle, which comprises a cabin body, a shell, a charging seat, an integrated module and the like, a shell is fixedly arranged on the upper left portion of the cabin body, a control panel is arranged on the upper portion of the shell, an integrated module is arranged on the upper rear portion of the cabin body, an inner groove is formed in the cabin body, an E-shaped charging base is fixedly arranged in the inner groove, and the charging base and the inner groove are matched to form two charging grooves which are symmetrical front and back. During use, after airflow introduced by an air inlet fan is shunted by the flow guide cover and the T-shaped groove, part of the airflow takes away heat through a transverse airflow channel formed by the fin rays, and the other part of the airflow enters the flow guide groove of the U-shaped plate, so that the heat of the contact seat conducted by the heat conducting plate I and the heat of the charging bin conducted by the heat conducting plate II are combined; and finally, the air is discharged by the air outlet fan through the air transmission opening and the L-shaped groove, so that comprehensive heat dissipation of the charging seat, the contact seat and the charging cabin position in the charging cabin is realized, and the heat dissipation efficiency is effectively improved.

The invention relates to a light and miniature big-target-surface low-light lens, and the lens comprises a front lens group A, a diaphragm B and a rear lens group C, wherein the front lens group A, the diaphragm B and the rear lens group C are sequentially arranged in an incident direction of an optical path. The front lens group A includes a positive meniscus lens A1, a negative meniscus lens A2,a biconcave lens A3 and a biconvex lens A4, wherein the positive meniscus lens A1, the negative meniscus lens A2, the biconcave lens A3 and the biconvex lens A4 are sequentially arranged in an incident direction of the optical path. The biconcave lens A3 and the biconvex lens A4 are in close connection with each other as a first bonding group. The rear lens group C includes a biconcave lens C1, abiconvex lens C2, a biconvex lens C3, a plano-convex lens C4 and a negative meniscus lens C5, wherein the biconcave lens C1, the biconvex lens C2, the biconvex lens C3, the plano-convex lens C4 and the negative meniscus lens C5 are sequentially arranged in an incident direction of the optical path. The biconcave lens C1 and the biconvex lens C2 are in close connection with each other as a secondbonding group. The invention also relates to an imaging method of the lens. The lens is reasonable in design, effectively improves the imaging quality under the requirement of the large target surfaceof the lens, reduces the number of optical lenses, and realizes light and miniature lens. The lens has strong light collecting and light transmitting ability, and the target surface of the lens is large. The lens is high in optical resolution, is large in angle of view, and is large in observable range.

The invention provides a PQC and SM2 / 9 cooperative operation cryptographic chip and method based on an RISC-V architecture, and belongs to the technical field of cryptographic security. The chip comprises an RISC-V core and a configurable password collaborative operation unit, wherein the configurable password collaborative operation unit comprises a collaborative control state machine and a unified operation unit capable of being dynamically reconfigured. The method comprises the following steps: receiving and decoding a single cooperative operation instruction from an RISC-V core through a cooperative control state machine, and obtaining operation data feature information; the data length and the security level identification are extracted, and the optimal collaborative operation process is selected in a self-adaptive mode through comparison with a preset threshold value; and finally, dynamically configuring and scheduling a unified operation unit according to the selected process, and completing cooperative operation of the post-quantum cryptography algorithm and the SM2 / SM9 algorithm in an atomization mode. According to the method, deep fusion and intelligent scheduling of the two algorithms are realized on the hardware level, and the efficiency, the resource utilization rate and the safety of cooperative operation are improved.

An integrated cleaning and liquid supply device and online cleaning method for polyurethane polishing pads are disclosed. The device includes a base, a rotating seat, a swing arm, an independent liquid supply pipeline system and cleaning pipeline, a high-pressure nozzle array, and a positioning sensor assembly. During the polishing stage, polishing liquid is dripped through the liquid supply outlet. During the cleaning stage, the swing arm moves centripetally to a preset position aligned with the center of the polishing pad. The positioning sensor triggers a high-pressure pump, causing pure water to be sprayed as an atomized jet along the diameter of the pad surface through the high-pressure nozzle array. Simultaneously, the polishing pad rotates at a low speed, utilizing the synergistic effect of centrifugal force and high-pressure water flow to thoroughly remove residual contaminants within the micropores of the polyurethane. This invention integrates liquid supply and deep cleaning functions into the same motion mechanism, eliminating the need for machine shutdown or manual intervention. It offers advantages such as non-contact, non-destructive, thorough cleaning, and high automation, extending the life of the polishing pad and improving the stability of the CMP process.

The utility model relates to the technical field of quick-freezing devices, in particular to a tunnel-type quick-freezing device for quick-frozen food, which adopts a tunnel-type quick-freezing structure that a conveying belt is matched with a screen plate to realize reciprocating conveying of food, simplifies a conveying structure and reduces adhesion and damage of the food. Comprising a quick-freezing box, a driving roller, a driven roller, a conveying belt and a refrigerating system, the quick-freezing device further comprises a plurality of separating and pushing assemblies, a net plate and an ice receiving mechanism, the separating and pushing assemblies are evenly installed on the outer surface of the conveying belt, each separating and pushing assembly is composed of a plurality of evenly-arranged elastic rods, the separating and pushing assemblies are perpendicular to the conveying direction of the conveying belt, and the net plate is installed in a quick-freezing cavity of the quick-freezing box. The end of the screen extends out of the quick-freezing box through the inlet and outlet, the screen is located below the conveying belt, the ends of the multiple separating and pushing assemblies scrape the upper surface of the screen, and the ice receiving mechanism is installed in the quick-freezing cavity, located below the screen and used for collecting crushed ice.

The invention discloses a multi-point monitoring flexible temperature sensor array system for a deep sea environment. The multi-point monitoring flexible temperature sensor array system comprises a sensing node array composed of a plurality of sensing nodes, a plurality of flexible interconnection wires and a master control node, all the sensing nodes are connected in series through flexible interconnection wires and then are electrically connected with the master control node. The sensing node comprises a ratio type temperature measurement module and a 1-Wire bridging chip, the master control node comprises a 1-Wire master control chip and an MCU, and the flexible interconnection wire is a snakelike wire; the ratio type temperature measurement module collects a sampling signal and transmits the sampling signal to the 1-Wire master control chip through the 1-Wire bridge chip. And the MCU obtains the temperature at the node according to the sampling signal of each sensing node. The flexible temperature sensor array system provided by the invention is simple in structure, stable in performance and insensitive in pressure, and can reliably realize multi-point temperature real-time monitoring in a deep sea environment.

The invention discloses an operating system IO processing method supporting random IO merging, an operating system and a storage system, and belongs to the field of computer operating systems. The method comprises the steps that in a user mode, only one parameter copy is reserved for the same parameters of a plurality of random IO requests and recorded in a shared structure A, respectively recording different parameters of each random IO request into the shared structure body B to obtain a pseudo sequence request; the pseudo-sequence requests are issued to a system kernel, corresponding operations are executed on the pseudo-sequence requests in all layers of the system kernel in sequence, the batch operations are only executed once, and the non-batch operations are executed once for all the random IO requests respectively; the batch operation and the non-batch operation are operations executed for parameters in the shared structure body A and the shared structure body B respectively; and splitting the pseudo sequence request into random IO requests in an equipment driving layer of the kernel system, generating a corresponding equipment command, and submitting the equipment command to storage equipment. According to the invention, kernel overhead under the condition of high throughput can be relieved, so that the throughput is improved.

The utility model discloses a telescopic edge protection fence, including edge protection fence main part, the edge protection fence main part is including two stand, the bottom dead center of stand integrative setting has fixed base, through design telescopic adjusting mechanism, can when two -way screw rod rotation drive internal thread mobile cover mobile, through internal thread mobile cover drive subsidiary fence board inside the mobile of main guard board, make subsidiary fence board steady mobile adjustment and drive telescopic fence open, until with two subsidiary fence board opposite mobile steady mobile open to the length of installation, and the surface fixed of rotation locking bolt extrusion in subsidiary fence board, and the convenient telescopic adjustment of edge protection fence main part fixed installation use and reinforce installation make the quantity less of edge protection fence main part of installation use, reduce cost, fixed installation protection has stronger protection effect, and does not occupy space when transporting before use, improves the convenience and protection intensity of telescopic adjustment to it when using.

The utility model discloses a multifunctional cigar portable box relates to tobacco appliance technical field. The portable box includes cigar box main part, explosion -proof lighter, cut -out spare, storage warehouse and heat -insulating layer. The cigar box main part is equipped with fireproof layer and support frame in, and fireproof layer adopts ceramic fiber composite material, and effective barrier flame diffusion, sets up dry powder storage warehouse and safety support spring below explosion -proof lighter, can release fire extinguishing agent automatically when deflagration, and the cut -out spare realizes linear cutting through replaceable blade and guide rail, and is equipped with spacing adjustment function, ensures accurate operation, and the storage warehouse is covered with aerogel heat -insulating layer, and maintains the constant temperature environment in the box. The utility model discloses through integration storage, ignition, cutting and safety protection function, solved traditional cigar box single -function, inconvenient to carry and the hidden danger of safety problem, has modularization design, double safety protection and easily maintains the upgrading and so on, is applicable to cigar lover daily use and outdoor scene.

The utility model relates to biological medicine storage technical field, concretely is a kind of biological medicine storage frame of flexible combination, including main frame, the inside of main frame is provided with rack, the surface of rack is provided with adjusting device, adjusting device includes plug-in rod, plug-in rod and the inside slide connection of rack, the one end of plug-in rod is fixedly connected with pressing block, pressing block and the inside slide connection of rack, fixedly connected with push spring between pressing block and rack, the surface of plug-in rod is fixedly connected with push block, push block and the inside slide connection of rack, the inside wall of main frame is provided with positioning hole, the other end of plug-in rod is inserted with the inside of positioning hole.The utility model, by setting adjusting device, can effectively store different height biological medicine, avoid the problem that storage frame appears insufficient space and space waste when storing different medicine, and then be favorable to worker to store the storage space of storage frame and carry out flexible combination.

This utility model relates to the field of children's stroller technology and provides a children's stroller bassinet locking mechanism, including a front armrest seat, a front frame, a rear frame, an unlocking component, a gear, and a fixing seat. The fixing seat is hinged to the rear frame, front frame, and front armrest seat at the same center. The gear is located between the rear frame and the fixing seat and can slide inside. In this utility model, a reliable mechanical locking is achieved by setting a sliding gear between the rear frame and the fixing seat. The inclined surface fit structure between the unlocking component and the gear makes the unlocking process smooth and stable. Unlocking can be completed by a one-way sliding action, which is easy to operate. The fixing seat, front frame, rear frame, and front armrest seat share the same central hinge point, reducing the number of parts and making the structure more compact. This design not only improves the overall strength but also maintains the stability of the frame posture during locking and unlocking. The mechanism can be hidden inside the frame to avoid external interference, and it has good aesthetics and safety.

The utility model discloses a vehicle front end connecting module and vehicle with it, include: left front connecting beam and right front connecting beam, left front connecting beam and right front connecting beam are suitable for installing in the frame and along the width direction arrangement of frame, left front connecting beam front end and the front end of right front connecting beam are suitable for installing front anti -collision pole, left front connecting beam front end and right front connecting beam front end between suitable for accommodating cooling module, front crossbeam subassembly, one end of front crossbeam subassembly is connected in left front connecting beam's front end and is connected in the front end of right front connecting beam with another end, strengthen crossbeam, strengthen crossbeam is connected in left front connecting beam and the bottom of right front connecting beam, wherein, left front connecting beam and right front connecting beam and strengthen crossbeam are all castings, and the distance between left front connecting beam front end and right front connecting beam front end is 1050mm~1150mm. According to the vehicle front end connecting module of utility model embodiment, can accommodate greater cooling module, has the advantages such as high integrity, promotes structural strength, light weight.

This application proposes a training method, a speech synthesis method, and an apparatus for a speech synthesis model, relating to artificial intelligence technologies such as deep learning and speech technology. The training method for the speech synthesis model includes: acquiring sample acoustic features, corresponding first phoneme sequences, and corresponding speaker identifiers of multiple first sample audio samples, wherein at least one first sample audio sample corresponding to the same speaker identifier has a single style feature; inputting the first phoneme sequence and corresponding speaker identifier of the first sample audio sample into the speech synthesis model to obtain the predicted acoustic features of the first sample audio sample; and training the speech synthesis model based on the predicted acoustic features and sample acoustic features of each first sample audio sample. This achieves the decoupling of timbre features and style features in the audio, thereby enabling the use of audio samples with single style features corresponding to multiple speakers to train the speech synthesis model, thus reducing the training cost of the speech synthesis model.

The application provides a cloud game evaluation method and medium based on space-frequency enhancement and sparse attention fusion, and belongs to the technical field of image processing. The method comprises the following steps: acquiring a cloud game video stream to be evaluated, and extracting key frames and key region image blocks from the cloud game video stream; inputting the key frames into a pre-trained global feature extraction network to obtain global features, global shallow layer features, global middle layer features and global deep layer features; and inputting the key region image blocks into a pre-trained local feature extraction network to obtain local features, local middle layer features and local deep layer features. The method of the application can precisely capture global scene distortion and local high-sensitive region distortion of a cloud game video by constructing a multi-stage sparse fusion network and a space-frequency multi-level fusion network, while reducing model parameter quantity and calculation cost, meeting real-time inference and terminal lightweight deployment requirements of a cloud game scene.

The invention provides a P.megatherium Thr45 strain and an application thereof. The preservation number of the Thr45 strain is GDMCC No: 67316. The P.megatherium Thr45 strain has the advantages that the preservation number is CGMCC No: 67316; the application of the P.megatherium in the prevention and treatment of the growth of the Orobanche cucurbitae is reported for the first time, and the types of bacterial strains for preventing and treating the Orobanche cucurbitae are enriched. According to the application of the Pristia megaterium Thr45 provided by the invention in preventing and treating the growth of the Orobanche cucurbitae, the inhibition rate of the separated strain fermentation liquor on the seed germination of the Orobanche cucurbitae is as high as 100%, and the application has a wide application value in biological prevention and treatment of the Orobanche cucurbitae.

A storage array, a memory, a reading method thereof, and an electronic device are disclosed. The storage array includes multiple storage cell subarrays, a reference cell column, and a set of reference voltage generation circuits, reference cell switching circuits, and read word line control circuits. The storage cell subarrays and reference cell column in two storage arrays are electrically connected via read bit lines and symmetrically distributed around a read decision unit. The transistors of the reference cells and storage cells are isomorphic and have the same circuit structure. The memory includes at least one pair of open storage arrays, each pair comprising a first storage array, a second storage array, and a set of read decision units. Each storage array is electrically connected to one of the two input terminals of the read decision unit. During reading, the two storage arrays provide a read voltage and a reference voltage, respectively. The two input terminals of the read decision unit have similar RC parameters, and the drift generated by the voltages at the two input terminals is also matched. This application improves storage density and data reading reliability.

This utility model relates to the field of chemical cooling technology, and provides a production device for cooling chemical mixtures, including a reaction vessel. A cooling chamber is provided on the outside of the reaction vessel, and a cooling pipe is provided inside the cooling chamber. The cooling pipe is wound around the outer wall of the reaction vessel. A stirring mechanism is provided inside the reaction vessel. Heat dissipation mechanisms are provided on both sides of the cooling chamber on the outside of the reaction vessel. By providing a stirring mechanism and a heat dissipation mechanism, this utility model can provide forced air cooling for the cooling pipe and cooling medium, accelerating the diffusion of heat to the environment. While improving the cooling effect, only one drive motor is needed to drive the stirring blades and the cooling fan at the same time, reducing the number of power devices, simplifying the equipment structure, and reducing energy consumption and maintenance costs.

The application discloses a visual perception method for assisted driving, comprising the following steps: S100, collecting assisted driving image data, and constructing input X after data set preprocessing; S200, constructing a multi-task neural network model F and substituting the input X into the model to obtain a plurality of branch task-specific outputs f i ; S300, calculating the final loss function L all of the multi-task neural network model F; S400, optimizing the minimum as the target of the loss function L all , and finally obtaining the optimal multi-task neural network model F * . A system using the above visual perception method for assisted driving is also disclosed, specifically comprising a data input module, a shared layer feature extraction module, a task layer structure search module and a model output module. The application has the beneficial effect that a multi-task model is constructed to effectively reduce the network parameter quantity and the calculation quantity, simultaneously reduce the online reasoning time, and is very beneficial to practical application.

The invention provides a dual-frequency single-port intermodulation tester, and the tester comprises an intermodulation control module which comprises an intermodulation controller, a first frequency source and a second frequency source, and the intermodulation controller controls the first frequency source and the second frequency source to generate two carrier signals with different frequencies through receiving a configuration instruction; and the multiplexer module comprises a plurality of power amplifier modules and a multiplexer, the plurality of power amplifier modules are used for amplifying the two paths of carrier signals, synthesizing the two paths of carrier signals through the multiplexer, outputting the synthesized two paths of carrier signals to a tested piece, and receiving and processing intermodulation products reflected back from the tested piece at the same time. According to the invention, the accuracy, the integration level and the field applicability of the intermodulation test are effectively improved.

The application provides a circuit breaker, relates to the technical field of switches, and can reduce the production cost of the circuit breaker and is easy to assemble. The circuit breaker comprises a shell, an indicating piece, a movable contact, a driving shaft and an elastic piece, and the shell is provided with a viewing window. The indicating piece is provided with an acting end and an indicating end, and the indicating end is provided with an opening indication mark and a closing indication mark. When the indicating piece is in a first position, the opening indication mark corresponds to the viewing window. When the indicating piece is in a second position, the closing indication mark corresponds to the viewing window. When the movable contact is in a contact position, the indicating piece is in the second position. When the movable contact is in a disengagement position, the indicating piece is in the first position. The driving shaft drives the movable contact to switch between the contact position and the disengagement position. The driving part of the driving shaft is in abutment with the acting end, and the indicating piece is switched from the first position to the second position. The two ends of the elastic piece are elastically applied to the shell and the indicating piece respectively, and are used for applying an action force close to the driving part to the acting end.

The application discloses a double PMSM compound error weight adaptive prediction position synchronous control method, comprising the following steps: S1, according to the mathematical modeling of the double permanent magnet synchronous motor system, an incremental continuous control set model prediction control model is established, and a multi-step prediction is carried out to obtain an output matrix; S2, based on the multi-step prediction output matrix, average tracking error and semi-modal synchronous error are constructed, and a value function is established; S3, according to the design of a Lyapunov function, a weight adaptive update law is designed by using a gradient descent method; S4, an event triggering mechanism is designed for the weight adaptive update law, if an event triggering condition is met, the weight adaptive update is carried out, otherwise, the weight of the last moment is used; S5, the optimal control variable increment is obtained by minimizing through the weight calculation after the update, whether the constraint condition is met is judged, if the constraint condition is met, the optimal control variable increment is directly output, otherwise, the optimal control variable increment is output after being subjected to geometric constraint.

This application provides a fixture and method for clamping and machining thin-walled welded parts, relating to the field of fixture and tooling technology. The fixture includes a base mechanism, a central positioning mechanism, an angular positioning structure, an auxiliary support mechanism, and a clamping mechanism. The base mechanism uses a disc and multiple circumferentially arranged elongated plates to form a support surface; the central positioning mechanism mates with the positioning inner hole of the part to achieve central positioning; the angular positioning structure mates with the angular hole of the part to achieve angular positioning; the auxiliary support mechanism is set for each lug to be machined, using V-shaped supports and lateral limiting components to provide auxiliary support and limit the lugs to be machined; the clamping mechanism clamps the part to the clamping reference surface. This solution can improve the clamping stability, positioning accuracy, and local rigidity during machining of thin-walled welded parts, reduce vibration and lateral displacement of the lugs to be machined, and reduce the risk of cracking at the weld joint.

This utility model discloses a multifunctional concrete expansion agent corrugated pipe shrinkage measuring device, including a base. A fixed support plate and a movable support plate are symmetrically arranged on the upper surface of the base along its length. Two horizontally arranged base columns are positioned between the fixed and movable support plates. A dial indicator with its output end passing through either the fixed or movable support plate is provided on the opposite side of each support plate. In this application, the movable support plate can slide along the two cylindrical base columns and be locked with fastening screws, achieving stepless / stepped rapid switching of gauge lengths from 200 mm to 600 mm. By installing a dial indicator on each of the fixed and movable support plates, a dual-end "comparative measurement" mode is formed, automatically eliminating systematic errors caused by temperature gradients or micro-deformation of the base. Simultaneously, it can distinguish the shrinkage differences at both ends of the specimen, providing richer data dimensions for optimizing the expansion agent formulation.

The utility model discloses a solenoid valve driver, including socket combination - shell assembly and the circuit board - shell cover assembly that is connected with socket combination - shell assembly through shell cover screw (31), socket combination - shell assembly includes shell (1) and the socket combination (2) that is connected with shell (1), socket combination (2) includes socket (21), the plug (22) that is connected with socket (21), pin (23), socket screw (24) for fixing socket (21) on shell (1) and set up between socket (21) and shell (1) O ring (25), the circuit board - shell cover assembly includes the shell cover (3) that is connected with socket combination - shell assembly, sets up the circuit board (4) of shell cover (3) near shell one side and sets up cable (5) on the other side of shell cover (3). The utility model provides a solenoid valve driver can reach better sealing stability.

Embodiments of the present disclosure relate to a battery module. According to an embodiment of the present disclosure, there is provided a battery module including a plurality of battery cells each including at least one electrode tab, and a bus bar in contact with the electrode tabs to electrically connect the plurality of battery cells, wherein the bus bar includes a plate in which a plurality of holes are formed, and the electrode tabs are inserted into at least a portion of the plurality of holes to electrically connect the plurality of battery cells.

The application discloses a kind of management methods, device and equipment of caching data and storage medium.The method comprises: in response to detecting that data caching instruction sent by client, target cache data and cache name corresponding to the data caching instruction are acquired;The target cache data is stored in the cache directory in local storage space, and the cache path of the target cache data under the cache directory is acquired;Based on the cache name and the cache path, target cache file is generated, and the target cache file is stored in the index directory in local storage space.The embodiment of the application solves the problem that the existing management method of caching data cannot generate cache file based on multi-level cache data, reduces the occupied space of cache file in the index directory in local cache space.

The application relates to the field of mechanical structures, in particular to a magnetic mouse folding structure, which comprises a control main body and a folding main body, the folding main body comprises a bending assembly, a steel sheet and a magnetic attraction assembly, the magnetic attraction assembly comprises a magnetic attraction piece, a first magnetic piece and a second magnetic piece, the two ends of the steel sheet are connected with the control main body and the magnetic attraction piece respectively, the bending assembly comprises a locking block and a plurality of connecting blocks, the connecting blocks are arranged between the locking block and the control main body, the magnetic attraction assembly is arranged on the locking block, two adjacent connecting blocks are connected through a connecting part and a V-shaped gap is formed between the two connecting blocks, when the connecting blocks are arranged in a straight line, the magnetic attraction piece is magnetically attracted to the first magnetic piece, when the connecting blocks are arranged in a bending mode, the magnetic attraction piece drives the steel sheet to slide to be magnetically attracted to the second magnetic piece, and the included angle of the V-shaped gap is reduced to the point that the two adjacent connecting blocks are attached. The design is simple in structure, reduces the mouse production and maintenance cost, and improves the flexibility of mouse folding.

The invention belongs to the technical field of freight unmanned aerial vehicle delivery, and relates to an intelligent cabin door system for an unmanned aerial vehicle and a cabin door structure design method. The system comprises a driving system, a reel system, a curtain plate system, a sliding rail unit and a control unit. The control unit is electrically connected with the driving system; the driving system is arranged on the unmanned aerial vehicle body; the curtain plate system is connected with an unmanned aerial vehicle body through the sliding rail unit, the curtain plate system is connected with the reel system, the driving system is in transmission connection with the reel system through a chain wheel transmission structure, and the driving system drives the reel system to rotate so as to drive the curtain plate system to stretch or retract along the sliding rail unit. Opening and closing of the cabin door are realized. According to the invention, the number of moving parts is greatly reduced, the probability of clamping stagnation and wear failure of a mechanical transmission mechanism is fundamentally reduced, and the operation reliability of a cabin door system in harsh operation scenes such as emergency logistics and disaster rescue is remarkably improved.