7486 results about "Closed space" patented technology

The invention discloses a vehicle positioning method and system based on UWB and vehicle constraint, and relates to the field of vehicle positioning, and the method comprises the steps: deploying a UWB reference station in a well mining environment, and enabling a vehicle to be provided with a UWB tag; obtaining distance measurement data of at least two UWB reference stations, and detecting and compensating the distance measurement data to obtain a vehicle UWB position; collecting vehicle-mounted IMU (Inertial Measurement Unit) data, and obtaining a vehicle attitude quaternion through attitude calculation; collecting vehicle wheel speed meter data, and correcting the vehicle wheel speed meter data according to vehicle motion constraint conditions; according to the vehicle UWB position, the vehicle attitude quaternion and the corrected vehicle wheel speed meter data, the vehicle position is obtained through an adaptive Kalman filtering fusion algorithm. Aiming at low positioning precision caused by easy accumulation of errors and drifting of a traditional inertial navigation system in a well mine closed space in the prior art, the invention reduces the influence of a multipath effect in the traditional inertial navigation system on the positioning precision.

The invention discloses a BIM (Building Information Modeling)-based hoisting construction safety monitoring and early warning system. The system comprises a terminal sensing layer which is used for collecting environmental parameters and personnel behavior data in a closed space in real time; the edge computing layer is used for carrying out cleaning, compression and encrypted transmission on original data by utilizing an explosion-proof edge computing gateway; the cloud collaboration layer is used for storing full data based on a BIM digital twinborn platform, constructing a'danger mode-construction feature-disposal measure 'three-dimensional meta-knowledge graph by adopting an MAML + + algorithm, meanwhile, coupling a physical mechanism data enhancement engine with a multi-physics field coupling model and a physical constraint generative adversarial network, generating virtual data conforming to mass conservation and energy conservation, and sending the virtual data to the cloud collaboration layer; performing mixed training with real data; according to the intelligent decision-making layer, a space-time adaptive threshold evolutionary algorithm encodes a space-time context through a graph attention network and Transform, an alarm threshold is dynamically optimized through deep reinforcement learning, meanwhile, a digital twin deduction engine calculates a shortest safety path in real time, and rescue resource allocation is optimized.

The invention discloses an intelligent construction site confined space operation monitoring and early warning method based on artificial intelligence, and the method comprises the following steps: S1, collecting source data in a confined space operation environment, and carrying out the preprocessing; s2, analyzing the environmental safety condition in the closed space; s3, using a DINOv2 target detection model to identify the existence state of the operator and the wearing condition of the protective equipment, and monitoring the behavior action of the operator in combination with a MotionBERT attitude estimation algorithm; s4, performing health state analysis on the operating personnel; s5, predicting the risk change trend of the closed space operation environment by using an SARIMA model; s6, all the results are fused to generate a final risk assessment result; s7, when a set early warning threshold value is reached, alarm information is generated; and S8, dynamically adjusting early warning parameters. According to the method, a DINOv2 target detection model, a MotionBERT attitude estimation algorithm and an SARIMA model are combined, monitoring and early warning of closed space operation are achieved, and the method has high-precision detection, intelligent identification and risk prediction capabilities.

The invention discloses a negative carbon coplanar filling system arrangement and mining method, which comprises the following steps of: stoping by adopting a rear gangue high-porosity filling coal mining technology, retaining a stoping roadway on one side of a filling section by utilizing a gob-side entry retaining technology, and reinforcing by adopting a roadway-side support body; the mining roadway serves as a CO2 filling roadway of the working face and a mining roadway on one side of an adjacent filling working face; when the working face advances by 300-500 m, the working face is separated from a rear goaf through a sealing wall, and a sealed storage space is formed; then, drill holes are formed in the goaf through the CO2 injection and filling roadway, and CO2 injection and filling pipelines are arranged in the mining roadway and the drill holes; and CO2 is injected into the goaf by the CO2 injection pump through the CO2 injection pipeline, and after injection is completed, CO2 injection in the next closed space is started until injection of the working face is completed. The system is simple in arrangement, CO2 filling and coal mining filling do not interfere with each other, operation is flexible, the sealing performance of the sealing space is good, the dual purposes of solid waste disposal and CO2 sealing are achieved, and green mining of coal resources is achieved.

The invention discloses an intelligent lamp pole welding device and method based on wind-solar hybrid street lamp production, and relates to the technical field of welding devices. By arranging the welding slag grinding and removing mechanism, the position of the lamp pole can be limited from multiple angles, it is guaranteed that the position of the lamp pole cannot shake, meanwhile, the position of a grinding wheel is limited, it is guaranteed that a flat and smooth plane can be formed in a grinding area, welding slag and burrs can be ground immediately after a welding seam is welded, and the welding quality is improved. Secondary cleaning of a welding seam is not needed; when the partition plate units in the multiple positions are subjected to acting force of the outer wall of the lamp pole, the partition plate units can adaptively ascend and descend according to the acting force of the opposite partition plate units in different positions of the arc-shaped face of the lamp pole, so that the bottom ends of the partition plate units jointly form an outline matched with the arc-shaped face of the lamp pole. Therefore, a relatively closed space can be formed in the polishing area of the lamp post, polishing dust is isolated in the closed space, and the situation of dust splashing is further avoided.

A computer-implemented method of controlling ventilation in a closed space (240, 310) and related system. The method comprises receiving. at a controller (275) comprising a processor (560)), from at least one sensor consisting of a temperature sensor (360, 370), input relating to temperature from the temperature sensor (360, 370) (step 100): calculating. using a processor (560), the desired speed of at least one extractor fan (270) based upon the input from the temperature sensor (step 110): transmitting from the controller to the extractor fan (270) a signal to power the at least one extractor fan (270) to the desired speed (step 120); calculating. using the processor (560), the desired intake of air from at least one air intake (285) based upon the speed of the at least one extractor fan (step 130); transmitting from the controller (275) to the air intake (285) a signal to operate the at least one air intake for the desired intake of air (step 140)).

The invention discloses corrugated pipe fatigue test equipment in a vacuum state, which comprises a machine body and a moving assembly arranged at the bottom of the machine body, and a hollow pull pipe is arranged on the machine body in a sliding manner. A to-be-tested corrugated pipe is fixed through a flange plate and covered with a transparent cover, a connecting rod and a threaded base are connected and fixed through a nut pipe sleeve, a lower disc and an upper disc are arranged on a guide rod, a fastening nut is rotated, the upper disc is pressed downwards, the upper disc transmits pressure to the lower disc through an elastic piece a, and the transparent cover is fixed; a closed space is formed inside the corrugated pipe, the vacuum pump vacuumizes the inside and the outside of the corrugated pipe through the connecting pipe c and the connecting pipe a, at the moment, the driving unit drives the cam, the corrugated pipe is repeatedly stretched and compressed under the action of the elastic piece b, the fatigue strength of the corrugated pipe is tested in a vacuum state, and the fatigue strength is measured according to the length of the corrugated pipe to be tested. The height of the driving unit is controlled through the electric control telescopic rod, it is guaranteed that the corrugated pipe has enough space for testing, and the applicability is good.

The invention discloses a large-section long-footage mechanical blasting mixed excavation method suitable for a subway station, and relates to the technical field of underground rail transit engineering, and the method comprises the following steps: obtaining a tunnel section contour, a geologic structure and blasting parameters, building a three-dimensional blasting wave propagation inversion model, and combining geology and material heterogeneity to obtain a three-dimensional blasting wave propagation inversion model; and identifying a closed space region forming reflection interference, and predicting a space point location where blasting wave energy is abnormally accumulated. Based on the three-dimensional blasting wave propagation inversion model, the abnormal wave energy accumulation area is predicted in combination with geological heterogeneity, the high-risk blasting section is recognized, parameters are reconstructed, vibration real-time monitoring and model feedback correction are assisted, a closed-loop control system is constructed, local wave crest abnormity is effectively restrained, and the safety and controllability of large-section tunnel blasting construction are improved.

The invention discloses a multi-unmanned aerial vehicle cooperative positioning method and system, and belongs to the technical field of unmanned aerial vehicle positioning, a global coordinate system is defined firstly, a task starting point is taken as an original point, a Z axis is vertically upward, and unmanned aerial vehicle coordinate systems take respective inertial measurement units as centers; the unmanned aerial vehicle A is controlled to perform hovering motion at the indoor closed space laser radar feature point; controlling the unmanned aerial vehicle B to receive the pose covariance matrix and the local feature points of the unmanned aerial vehicle A in real time; laser SLAM output of the unmanned aerial vehicle B and the reference pose of the unmanned aerial vehicle A are fused through tight coupling Kalman filtering, accumulative errors are dynamically corrected, and an optimized pose and a covariance matrix of the unmanned aerial vehicle B under a global coordinate system are output; and unifying observation of the unmanned aerial vehicle A and observation of the unmanned aerial vehicle B to the same coordinate system by sharing pose constraints, and dynamically aligning local and global features to realize multi-unmanned aerial vehicle cooperative positioning. The method and the device are used for solving the technical problems of accumulated drifting and the like caused by long-time operation of laser SLAM in perception weakening scenes such as galleries and pipe galleries.

Systems and methods for providing dehumidification to an enclosed space can include a dehumidification unit in a supply air plenum that receives return air and a regeneration unit in a scavenger air plenum that receives outdoor air. The system can operate in a wet mode and a dry mode, depending on outdoor air conditions and a relative humidity setpoint for the enclosed space. The dehumidification unit and regeneration unit are both operational in the wet mode to dehumidify the return air and regenerate dilute desiccant. In the dry mode, the dehumidification unit and regeneration unit are not needed, and dry outdoor air can be supplied to the enclosed space. A heat recovery system utilizes waste heat from either return air or scavenger air, depending on the operating mode, to heat the outdoor air before it is supplied to the enclosed space or before it is used for regenerating desiccant.

A millimeter wave radar altimeter structure disclosed by the present invention comprises a shell, the shell is provided with a plurality of functional areas and integrates a plurality of functional units, the functional units comprise a radio frequency unit, an intermediate frequency processing unit and a signal control unit, and the plurality of functional units are compactly arranged in the shell. The radio frequency unit comprises at least one high-power emission chip, the chip is installed on a heat conduction substrate, and the substrate is in contact with the shell to form a heat conduction path. The shell is made of a high-heat-conductivity material, and a plurality of heat dissipation structures are arranged outside the shell, so that the heat dissipation efficiency under natural convection is improved. The heat conduction substrate, the shell material and the heat dissipation structure form a continuous heat dissipation path from the chip to the environment, heat accumulation is effectively restrained, and stable work of the chip is guaranteed. The shell further comprises a sealing structure, a sealed space is formed by a sealing groove, a sealing element, the antenna cover and the packaging cover plate, and environment sealing protection is achieved. The signal control unit is connected with peripheral equipment through an external interface, and the interface supports power supply and data communication of the altimeter.

The invention discloses a drug electric controlled release hydrogel patch for wound healing, and belongs to the technical field of biomedical materials, the hydrogel patch comprises sheet electrodes, conductive hydrogel, a liquid storage tank and a flexible circuit, the two sheet electrodes are respectively attached to two side surfaces of the conductive hydrogel to form a sandwich structure, and a hole is formed in the middle of one sheet electrode; the two sheet electrodes are connected to the flexible circuit through wires, and the flexible circuit controls the two sheet electrodes to generate voltage difference. The liquid storage tank is used for storing a medicine solution and comprises a liquid storage tank cavity and a liquid storage tank hole, the conductive hydrogel and the liquid storage tank cavity form a closed space through the liquid storage tank hole, one part of the conductive hydrogel is exposed outside, and the other part of the conductive hydrogel is in the liquid storage tank cavity; the conductive hydrogel is exposed outside, and the surface, attached with the sheet-shaped electrode with a hole in the middle, of the conductive hydrogel is a treatment surface facing a wound surface. The hydrogel patch can realize long-term continuous supplement of drugs in hydrogel and program-controlled drug release, and wound healing is promoted through cooperation of electrical stimulation and drug release.

A vehicle frame rail includes a first half having a hole, a second half having a hole, and a spacer. The second half is connected to the first half such that the hole in the first half is aligned with the hole in the second half and so as to form an enclosed space between the first half and the second half. The spacer has a first end, a first projection extending from the first end, a second end, a second projection extending from the second end, and a bore extending from the first end to the second end. The spacer is located in the enclosed space such that the first projection of the spacer extends into the hole of the first half and the second projection of the spacer extends into the hole of the second half. A method of manufacturing a vehicle frame rail includes pressing a projection on one of the spacers against the perimeter of a hole in one of the frame rail halves to connect the spacer to the frame rail half.

An air conditioning device includes an air conditioning case defining an air passage through which air flows to an air-conditioning target space, and an air cooler arranged inside the air conditioning case to cool air by absorbing heat from air. The air conditioning device further includes a blower fan arranged inside the air conditioning case on a downstream side of an air flow of the air cooler to generate an air flow passing through the air cooler, and a resonator provided outside the air passage. The resonator includes a cavity portion having a predetermined volume and a communication portion that allows communication between the cavity portion and the air passage. The cavity portion is provided with a partition member that divides an internal space of the cavity portion into multiple closed spaces, and each of the multiple closed spaces communicates with the air passage via the communication portion.

A semiconductor structure includes: a substrate; a package attached to a first surface of the substrate, where the package includes: an interposer, where a first side of the interposer is bonded to the first surface of the substrate through first conductive bumps; dies attached to a second side of the interposer opposing the first side; and a molding material on the second side of the interposer around the dies; a plurality of thermal interface material (TIM) films on a first surface of the package distal from the substrate, where each of the TIM films is disposed directly over at least one respective die of the dies; and a heat-dissipation lid attached to the first surface of the substrate, where the package and the plurality of TIM films are disposed in an enclosed space between the heat-dissipation lid and the substrate, where the heat-dissipation lid contacts the plurality of TIM films.

The invention belongs to the technical field of humidity sensors, and particularly relates to a wireless passive flexible sensor and a preparation method and application thereof. The flexible sensor comprises a flexible substrate, a planar spiral inductor, a sensitive capacitor and a humidity-sensitive film, wherein the planar spiral inductor and the sensitive capacitor are arranged on the surface of the flexible substrate; the humidity-sensitive film covers the surface of the sensitive capacitor; the planar spiral inductor and the sensitive capacitor are connected in series; the humidity-sensitive film is composed of a mono-substituted carboxyethyl viologen compound. According to the invention, the monosubstituted carboxyethyl viologen compound has good hydrophilicity and has the characteristic that the dielectric constant changes along with the content of adsorbed water molecules, and the monosubstituted carboxyethyl viologen compound is applied to the humidity-sensitive film, so that the sensitivity of a sensor for detecting humidity is improved; meanwhile, wireless transmission of signals is achieved in an electromagnetic coupling mode; the flexible wireless passive sensor provided by the invention can be easily placed in a narrow closed space and can precisely monitor the environment humidity.

The invention belongs to the technical field of noise reduction devices, and discloses an acoustic black hole combined noise reduction structure embedded with a micro-perforated structure. The device comprises an acoustic black hole cavity, a side cavity and a micro-perforated hole for communicating the acoustic black hole cavity with the side cavity, the acoustic black hole cavity comprises a thin plate array and an acoustic black hole cavity shell; the thin plate array is composed of a plurality of thin plates with round holes in the centers, the outer sides of the thin plates are fixed to the inner side of the acoustic black hole cavity shell, the thin plates are arranged at equal intervals, the centers of the thin plates are coaxial, the inner diameters of the thin plates are arranged in a monotonically decreasing or increasing mode, and an acoustic black hole structure is formed. The side cavity is located outside the acoustic black hole cavity and wraps the acoustic black hole cavity to form a closed space. The low-frequency, medium-frequency and high-frequency full-band noise reduction device is compact and simple in structure, convenient to use, diversified in form, capable of solving the noise reduction problem of low frequency, medium frequency and high frequency of 150 Hz or above, capable of improving the sound energy dissipation efficiency of system noise and wide in application prospect.

The invention relates to the field of coating performance testing, in particular to a real stone paint coating performance detection device which comprises a box body, a supporting rod, a clamping mechanism, an overturning mechanism, a box cover, a testing mechanism and a flushing mechanism. The clamping mechanism, the testing mechanism, the overturning mechanism and the flushing mechanism are matched with one another, so that the anti-cracking performance test, the stain resistance test and the scratch resistance test can be carried out on the real stone paint coating, the test cost is reduced, and the tests are carried out in a closed space formed by the box body and the box cover; according to the utility model, the left side of the closed space formed in the box body and the box cover is respectively provided with the refrigerating device, the heating device and the temperature sensor, so that the temperature of the closed space is increased; the two parts cooperate with each other to test the freeze-thaw performance of the stone-like coating on the left side of the closed space, another stone-like coating playing a contrast role is clamped on the right side of the closed space, and a freeze-thaw performance test result can be compared and observed.

A radiotherapy system is configured to receive an open-field X-ray beam from a superficial radiotherapy machine and direct the beam through a grid module configured to spatially fractionate the open-field beam into a group of spaced-apart microbeams. A patient applicator defines an enclosed space having a patient support surface for supporting a target body part. A beam receiver of the patient applicator receives the group of microbeams directed at the target body part on the support surface. The enclosed space is defined by a wall structure comprising shielding sufficient to absorb the radiation emitted by the superficial radiotherapy machine. The patient applicator 80 can be portable, and the superficial radiotherapy machine can be wheeled.

The application provides a large-span bridge substructure vehicle-fire wind force real-time hybrid test platform and implementation method, the platform comprises a physical loading and transmission system, a T-shaped wind-fire coupling simulation system, a modularized prying integrated system, an intelligent control and calculation system and a multi-dimensional high-precision monitoring system. The method realizes real-time pre-test of the boundary displacement / force of the test piece through the construction of a numerical substructure fast calculation model based on LSTM and converts the boundary displacement / force into a loading instruction to drive the through core jack to realize thermal force coupling interactive loading; the T-shaped wind-fire coupling simulation system reproduces the real vehicle fire scene under the influence of the environmental wind. The test platform supports independent loading of any component of the cable system, can execute open space self-defined fire test and closed space standard fire test, and accurately analyzes the cable failure mode, critical temperature threshold and damage evolution law under fire through the multi-dimensional high-precision monitoring system, thereby providing a high-fidelity test platform and analysis method for fire resistance design of large-span bridges.

A contact lens assembly includes a cup, a dry contact lens that is not for being worn on an eye, a sealing layer removably connected to the cup, and a wetting liquid supply. The sealing layer and the cup jointly form an enclosed space that receives the dry contact lens therein and that does not accommodate any liquid. After at least one of the sealing layer and the cup produces an opening, the cup can receive a wetting liquid from the wetting liquid supply through the opening, such that the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is suitable for being worn on the eye and that has a water content greater than a water content of the dry contact lens.

The present disclosure relates to an automatic detection system and an automatic detection method for an enclosed space. The automatic detection system includes: an interactive device; a movable platform; an environment perceiving device; a defect detection device; a memory; and a processing device. The processing device is configured to process the environmental data of the environment perceiving device to control the movable platform and the defect detection device, and process the detection data generated by the defect detection device to generate a detection report. The interactive device, the environment perceiving device, the defect detection device, the memory and the processing device are installed on the movable platform, and the interactive device can be operated to identify the enclosed space and enable the automatic detection system to automatically perform detection in an automatic detection mode based on the digital mock-up data of the enclosed space.

The present invention discloses a prosthetic heart valve comprising at least two valve components, a sealant covering the valve components, and an edge-sealing structure. A space is formed between the valve components covered with the sealant. The edge-sealing structure has a closed end face and connects the ends of the sealant to form a closed space within the space. The prosthetic heart valve provided by the present invention can reduce the risk of thrombosis between the valve components. Because the edge-sealing structure is flexible, it has little effect on the compression and gripping of the prosthetic valve, and the addition of the edge-sealing structure does not affect the normal function of the prosthetic valve.

The invention discloses a metal powder slurry cold-pressing instant drying device capable of recycling waste liquid, and relates to the technical field of metal powder processing. According to the cold-pressing instant drying device for the metal powder slurry, the first dehydration execution unit, the second dehydration execution unit and the second barrel body are arranged and can jointly form a closed space, so that a space is provided for cold-pressing drying of the metal powder slurry, and primary cold-pressing forming operation of metal powder in the metal slurry is completed; in addition, metal powder cakes formed through cold pressing can be automatically discharged, manual intervention is not needed, and the labor cost is reduced; by arranging the secondary dehydration mechanism, wastewater formed after the metal powder slurry is subjected to primary cold pressing dehydration can be subjected to dehydration treatment again, and metal powder remaining in the wastewater is recycled, so that waste of the metal powder is avoided, and the cost of cold pressing drying of the metal powder slurry is saved; meanwhile, the problem that the surrounding environment is polluted by metal powder in the wastewater is also avoided.

The invention relates to the technical field of aluminum electrolyte recovery, in particular to a waste aluminum electrolyte resource utilization method. The waste aluminum electrolyte resource utilization method comprises the following steps that waste aluminum electrolyte and a reactant are subjected to a reaction in a closed container, a product obtained after the reaction is completed is washed in water, then first solid-liquid separation is carried out to obtain a solid, aluminum fluoride is obtained after drying, and aluminum fluoride is obtained after second solid-liquid separation is carried out. The reactant is selected from one or two of anhydrous aluminum chloride and polyaluminum chloride, and the reaction temperature is not lower than 200 DEG C. By utilizing the physical characteristic that the melting point of the reactant is higher than the boiling point, the reactant forms a solid phase-liquid phase-gas phase three-phase coexistence system in a closed space at the temperature higher than the melting point and the boiling point, so that the reactant can more efficiently perform molecular collision and mutual diffusion at an interface, thereby accelerating the reaction rate and improving the conversion rate.

The invention discloses a scanning electron microscope. The scanning electron microscope comprises a scanning electron microscope main body and a sample table located in a sample cavity, the scanning electron microscope main body is fixedly connected with the upper cover of the sample cavity, so that a closed space is formed in the sample cavity; a closed-loop groove is formed in an upper cover of the sample cavity; wherein the groove is located outside the connection position of the upper cover of the sample cavity and the scanning electron microscope main body, and the bottom of the groove is not higher than the supporting surface of the sample table; a magnetic shielding layer is arranged in the groove; wherein the length of the magnetic shielding layer is not less than the distance from the objective lens of the scanning electron microscope main body to the supporting surface of the sample stage.

The invention relates to the technical field of multi-modal electrical variable analysis, and discloses a multi-modal data fusion analysis and judgment method based on environmental perception driving, which comprises a sensor unit for acquiring environmental parameter data, preliminarily judging data exception through environmental data, performing feature extraction on the environmental data, and obtaining a feature extraction result; the extracted environment data features are endowed with labels with timestamps and are input into a pushing unit, the pushing unit is provided with a dynamic adjusting and optimizing unit for performing multi-stage analysis and pushing on multi-environment data, outputting an environment analysis result and adjusting the pushing step length of the pushing unit in real time, and the dynamic adjusting and optimizing unit is used for receiving a multi-modal data analysis result of environment perception and outputting the multi-modal data analysis result. Whether the closed space and the power space need to be separated or not is judged, analysis and judgment of multi-environment perception are achieved, and automation and intelligence of separation of the closed space and the power space are improved.

The module cabin structure capable of being assembled and expanded comprises a structural frame and wall surfaces, the wall surfaces comprise a standard wall, a window wall and a door wall, the length-width-height ratio of the structural frame is 2: 1: 1, the standard wall, the window wall and the door wall are the same in size, the wall surfaces and the structural frame are welded to form a closed space, a plurality of connecting joints are arranged on the top of the structural frame, and the connecting joints are connected with the structural frame. The module cabin structure is spliced based on the connecting nodes, and at least one wall face and the structural frame are detachably installed. By means of the design of the structural frame with the standardized size and the detachable wall faces, the sealing structure and the connecting joints are combined, the problems that the transportation size is limited, the single capacity is insufficient, and the multi-cabin-body cooperation efficiency is low are solved, and the advantages of improving the sealing performance, enhancing the connecting stability and facilitating expansion and splicing are achieved.

The invention discloses an emergency protection device for BMS module lithium battery equipment, and relates to the technical field of lithium battery equipment, the emergency protection device comprises a shell, the top end and the bottom end of the shell are detachably provided with a top cover and a bottom plate through screws respectively, rectangular grooves are symmetrically formed in the outer surfaces of the two opposite sides of the shell in a penetrating mode, and sliding blocks are slidably installed on the inner walls of the two rectangular grooves; sealing plates used for shielding the rectangular grooves are fixedly mounted on the outer surfaces of the sliding blocks, and a turning plate is rotationally mounted between the two sliding blocks through a rotating shaft; the upper surface of the turning plate is used for mounting a main battery pack; the lower surface of the turning plate is used for mounting an auxiliary battery pack; a turnover mechanism is installed between the sliding block and the shell, and a monitoring mechanism is installed on the top cover. The temperature of the main battery pack during working is monitored through the monitoring mechanism, when the temperature of the main battery pack during working sharply rises to an ignition point, the monitoring mechanism unlocks the sliding block through the limiting mechanism, the turnover mechanism drives the turnover plate to turn over by 180 degrees, the elastic conductive column of the main battery pack reaching the ignition point is disconnected from the conductive contact, and the main battery pack is prevented from being ignited. Meanwhile, the turnover plate, the baffle and the bottom of the shell form a closed space to isolate oxygen and avoid ignition and spontaneous combustion of the main battery pack.

The invention belongs to the technical field of ammonium perchlorate production, and relates to a device for producing ammonium perchlorate through cold-process double decomposition and a use method. The device comprises a reactor, a stirring assembly and a temperature control assembly, wherein the stirring assembly and the temperature control assembly are arranged in the reactor; a partition plate and a filter plate are arranged in the reactor; the filter plate is located below the partition plate and rotatably mounted in the reactor, a mounting frame is fixedly mounted in the reactor, a conveying belt is arranged in the mounting frame, and a plurality of scrapers are arranged on the conveying belt at intervals. Ammonium perchlorate is collected while filtration is carried out, so that the production efficiency is improved. Meanwhile, ammonium perchlorate in the filter holes in the filter plate in the closed space is extracted out, and the filter plate is dredged, so that the filter efficiency of the filter plate is further improved, and the generation efficiency is improved. After the filter plate in the closed space is dredged, part of air below the filter plate is pumped out to form suction filtration, so that the filtering efficiency of the filter plate is further improved.