48results about How to "Reduce exercise" patented technology

The invention discloses an all-terrain photovoltaic power station intelligent weeding robot control system based on shielding real-time monitoring, and relates to the technical field of intelligent planning. Environmental data of a photovoltaic power station are collected, an environmental data set S is constructed and preprocessed, a photovoltaic power station three-dimensional model is constructed, and the three-dimensional model of the photovoltaic power station is constructed according to the three-dimensional model of the photovoltaic power station; using a path planning algorithm to obtain an operation path, collecting operation data of the intelligent weeding robot in real time in the weeding operation process, constructing an operation data set D, and obtaining a path comprehensive score LJ of each grid region according to the operation data set D, and comparing and analyzing the path comprehensive score LJ with a preset first path score threshold LY and a preset second path score threshold LP, evaluating the operation path, and carrying out operation path adjustment on the grid region of which the evaluation result is that the operation path has deviation, so that the instantaneity and the accuracy of the weeding operation are improved, and the weeding operation efficiency is improved.

The invention discloses a device for slowing down sloshing of a liquid tank. The device comprises the liquid tank, a linear guide rail sliding mechanism, a combined swash plate device and an automatic springback swash plate device. According to the device for slowing down the sloshing of the liquid tank, a double-sloshing-reduction method is adopted, firstly, the amplitude of the sloshing wave height of the free liquid surface and the kinetic energy of liquid sloshing are weakened in the middle of the liquid tank by means of the automatic rebound swash plate device; liquid sloshing energy is dissipated by means of holes of the combined swash plate device for liquid to enter and exit from the bulkhead, direct action of free surface movement of the liquid on the side wall of the liquid tank is hindered, impact load of liquid sloshing on the bulkhead is reduced, and the phenomena of top rushing and jet flow caused by climbing along the bulkhead are inhibited. Meanwhile, the position of the combined oscillation suppression plate device can be adjusted by means of the linear guide rail sliding mechanism, the energy of liquid oscillation can be dissipated to the maximum extent, meanwhile, the inherent frequency of the liquid tank is changed, resonance can be effectively avoided, and therefore the wave absorption and stabilization effects of the oscillation suppression device can be better exerted.

The invention relates to the technical field of packaging bags, and discloses a moisture-proof medical packaging bag material and a preparation method thereof. The moisture-proof medical packaging bag material comprises a paper layer and a plastic layer, the paper layer comprises modified kraft paper, and the plastic layer comprises the following raw materials in parts by weight: 70-100 parts of polybutylene terephthalate adipate, 30-50 parts of polypropylene carbonate, 5-7 parts of modified mica and 1.5-3 parts of cellulose acetate oleate. The moisture-proof medical packaging bag material prepared by the invention has good water resistance and mechanical properties, also has good degradability, and has a good application prospect.

The invention discloses a high-temperature-resistant ethylene-tetrafluoroethylene copolymer as well as a preparation method and application thereof. The copolymer comprises the following raw materials: 10-30 parts of ethylene; 60 to 80 parts of tetrafluoroethylene; and 6 to 30 parts of 4-(trifluoromethyl) styrene. The preparation method comprises the following steps: adding a perfluorocarbon solvent and 4-(trifluoromethyl) styrene into a reaction kettle, stirring, and keeping the temperature at 30-50 DEG C; and adding a mixed gas of ethylene and tetrafluoroethylene and a perfluorobutyryl peroxide compound in a molar ratio of 1: 1 into the system to initiate a polymerization reaction under the reaction pressure of 1-4MPa for 15-30 minutes. The application comprises the following steps: adding the prepared high-temperature-resistant ethylene-tetrafluoroethylene copolymer into an extruder; extruding at the temperature of 260-300 DEG C to coat the outer surface of the electric wire or the cable; and carrying out annealing treatment on the wire or the cable coated with the high-temperature-resistant ethylene-tetrafluoroethylene copolymer at the annealing temperature of 120-180 DEG C for 12-24 hours. The preparation method of the high-temperature-resistant ethylene-tetrafluoroethylene copolymer is simple, low in cost and convenient for large-scale production and application.

The invention relates to the field of Wenchang chicken breeding methods, in particular to a Wenchang chicken breeding method capable of achieving multi-stage accurate feeding and disease early warning. The method comprises the following steps: S1, breeding in a chick transition stage: establishing a Wenchang chick transition room, S2, breeding in a growing period stage: adopting a mixed mode of free-range breeding and artificial feeding, and S3, breeding in an optimization period: selecting chickens for cage breeding; in the Wenchang chicken breeding process, the Wenchang chickens are bred in a multi-stage precise feeding mode, when chicks are introduced in the initial stage, a transition chamber is established, a nutritional agent containing rhizoma atractylodis macrocephalae, radix astragali, multivitamin powder and probiotics is added into feed, feeding is conducted in the Wenchang chicken breeding stage, the mixed mode of free-ranging and artificial feeding is adopted, and the breeding efficiency of the Wenchang chickens is improved. Nutritional agents containing multivitamin powder, probiotics, hawthorn fruit powder and medicated leaven are added in fixed-point feeding, good chickens are selected for cage culture in the optimization period of Wenchang chickens, traditional Chinese medicine agents are added, disease prevention and early warning can be conducted on the Wenchang chickens, and the Wenchang chickens are natural, small in toxic and side effect and easy to metabolize.

The invention relates to a filter cartridge dust remover for a casting workshop, and belongs to the technical field of dust removal equipment, the filter cartridge dust remover comprises a box body, an air inlet and an air outlet are formed in the box body, a plurality of filter cartridge inner frames which are obliquely arranged are arranged in the box body, and a reverse blowing device used for blowing compressed air into the filter cartridge inner frames is arranged on the box body. A cyclone generating mechanism is arranged on the inner side of the filter cartridge inner frame and is used for generating high-speed cyclone along the axial direction of the filter cartridge. By additionally arranging the cyclone generation mechanism, high-speed cyclone can be generated on the inner side of the filter cartridge, and the airflow direction in the high-speed cyclone is continuously changed, so that the inner side of the filter cartridge can be subjected to relatively uniform blowing treatment, the surface of the filter cartridge can be subjected to uniform and comprehensive dust removal treatment, and the dust removal effect during back-blowing dust removal is improved.

The invention discloses a tool path planning method and system for numerical control machining of a face gear, belongs to the technical field of gear machining, and solves the problems that multiple sets of tool interference and path optimization constraints are not considered and introduced in an existing method, and frequent pause and adjustment are caused in the machining process due to unreasonable tool interference and paths. The method comprises the steps of determining a machining mode of a to-be-machined gear based on parameters of the to-be-machined gear, detecting and adjusting an interference path of a milling cutter, outputting a primary adjustment path after primary adjustment, adjusting the milling posture of the milling cutter, and outputting a secondary adjustment path after secondary adjustment. According to the method, the initial machining path of the milling cutter in the multi-head cutter set is determined through a path calculation algorithm, and the optimal path without interference of the milling cutter is obtained. The milling precision of the milling cutter is guaranteed, collision or interference among multiple groups of milling cutters during machining is avoided, and the efficiency of the milling cutter is improved.

The tuned mass damping vibration attenuation device for the floating offshore wind turbine comprises a top plate and a bottom plate which are installed on the inner wall of a wind turbine tower, and a mass block is arranged between the top plate and the bottom plate; a plurality of rigid connecting rods are hinged to the inner wall of the fan tower drum in the circumferential direction at equal intervals, the tail ends of the rigid connecting rods are hinged to the mass block, and dampers are installed on the rigid connecting rods; an upper vertical damping mechanism and a lower vertical damping mechanism are installed at the upper end and the lower end of the mass block respectively, the tail end of the upper vertical damping mechanism is connected with the top plate, and the tail end of the lower vertical damping mechanism is connected with the bottom plate. According to the invention, multi-dimensional vibration control is carried out on the fan; the tuned mass damper is composed of the mass block, the rigid connecting rod and the damper to slow down movement of the draught fan in the horizontal direction, meanwhile, when the draught fan moves vertically, the damper restrains the vertical movement of the draught fan through movement energy consumption of the mass block, the upper vertical damping mechanism and the lower vertical damping mechanism, and the draught fan is kept stable.

The invention relates to an optical measurement technology, and discloses a batch chip multi-angle defect detection method, control equipment and AOI equipment, and the method comprises the steps: placing a chip array after gold wire bonding into a detection area of the AOI equipment; controlling the camera array to shoot panoramic images of the chip array in multiple directions; carrying out image segmentation on the panoramic image in multiple directions to obtain a multi-angle image corresponding to each chip; carrying out defect detection on the chip without the unqualified image; an image supplementary shooting path is intelligently planned according to the chip position and direction to which the unqualified image belongs; controlling the motion camera to carry out supplementary shooting on the unqualified image along the image supplementary shooting path; carrying out defect detection on the chip after image supplementary shooting; and generating a defect detection result of the chip. The invention further discloses a computer readable storage medium. The invention aims to improve the efficiency of defect detection on batch chips while ensuring the quality of defect detection on the batch chips.

The invention relates to the technical field of experimental equipment, in particular to a constant-temperature quantitative split charging super clean table of a shaking table and an application method thereof, the constant-temperature quantitative split charging super clean table comprises a super clean table body, and a constant-temperature box and a conical flask are detachably mounted in the super clean table body; the driving assembly is connected with the constant-temperature box, and the driving assembly can drive the constant-temperature box to reciprocate; the quantitative split charging assembly is arranged in the super clean bench body, and the quantitative split charging assembly is used for quantitatively extracting a mixed solution of a culture medium and a strain in the conical flask; the concentric plate group is arranged in the constant-temperature box, and the concentric plate group can prevent the hot liquid in the constant-temperature box from splashing out; and the suction assembly is provided with a plurality of nozzles and is circumferentially installed in the constant-temperature box at equal intervals, the suction assembly is matched with a guide piece arranged on the driving assembly, and when the constant-temperature box moves to the end of the stroke, the hot liquid in the constant-temperature box can move from the outside of the conical flask to the top down, the heating effect is improved, and the hot liquid is prevented from splashing.

The utility model relates to the technical field of infusion auxiliary supplies, and discloses a disposable needle fixing glove which comprises a palm plate, the front end of the palm plate is fixedly connected with a front plate, the top end of the front plate is fixedly connected with a palm hook-and-loop fastener, the top end of the front plate is fixedly connected with a palm pasting block, and the palm pasting block is fixedly connected with a handle. The bottom end of the palm plate is fixedly connected with a fixing plate, the right end of the palm plate is fixedly connected with a winding assembly, the top end of the front plate is fixedly connected with a finger hook-and-loop fastener, and the top end of the front plate is fixedly connected with a finger sticking block. According to the utility model, the palm plate cannot be bent, and the finger magic tapes, the front plate and the wrist plate can be bent, so that the movement of hand muscles can be reduced by fixing the palm, the pain of a patient in the operation process can be reduced, and the pain and discomfort caused by needle swelling of the patient during injection can be reduced by fixing the palm.

The utility model relates to the field of fire fighting, and provides a fire extinguishing device, an energy storage device and a power utilization device.The fire extinguishing device comprises a shell, the shell comprises a first wall and side walls, the side walls define a containing cavity with an opening, the opening covers the first wall, the first wall is provided with a first through hole and a second through hole, and the first through hole is used for spraying aerosol; the barrier is arranged on one side, far away from the accommodating cavity, of the first wall; the slow opening part is connected to the blocking part to slow down movement of the blocking part in the thickness direction of the first wall. Wherein the first through hole is at least partially formed outside the orthographic projection of the blocking part on the first wall, and the second through hole is formed inside the orthographic projection of the blocking part on the first wall, so that the reliability of the fire extinguishing device is improved.

The utility model discloses a card feeding structure of a fluorescence immunoassay analyzer, which belongs to the field of in-vitro diagnosis and detection instruments and comprises a support plate and a guide plate, a card feeding channel is arranged on the support plate, the guide plate can reciprocate along the card feeding channel and is positioned at the bottom of the card feeding channel, and a card feeding push strip is arranged on the guide plate. The card feeding push strip is elastically connected with the guide plate in the vertical direction; in a natural state, the top of the card feeding push strip is higher than the surface of the supporting plate. According to the scheme, the structures such as the card feeding push strip of the reagent card are all arranged at the bottom of the supporting plate, redundant structures are hidden, the appearance is beautified, the size of the card feeding structure is integrally reduced, the structure is simplified, the elastic piece between the card feeding push strip and the guide plate can guarantee that the card feeding push strip is normally jacked up, and the card feeding efficiency is improved. The top of the card feeding push strip is higher than the surface of the supporting plate, so that the card feeding operation of the reagent card can be completed.

The invention provides automatic tapping equipment for reinforcing steel bar sleeve production, and relates to the technical field of tapping machines, the automatic tapping equipment comprises two scrap stripping mechanisms, the two scrap stripping mechanisms are fixedly connected to the side, close to a double-end tapping part, of an automatic material changing clamp correspondingly, and the two scrap stripping mechanisms are arranged in a mirror image mode; a tapping drill bit on the double-end tapping part can penetrate through the chipping stripping mechanism to tap a sleeve part fixed to the automatic material changing clamp, the chipping stripping mechanism is used for collecting and separating metal wires generated during tapping, and the chipping stripping mechanism comprises an annular frame and a winch assembly which is rotationally arranged in the annular frame. The winch assembly is composed of the two discs rotating at different speeds, the tapping drill bit drives the metal wire to move to the position between the two discs after tapping is completed, and the technical problems that in the prior art, continuous metal wires generated during tapping cannot be effectively cleaned, the drill bit is prone to being wound, and continuous automatic machining is affected are solved.

The invention belongs to the field of loader auxiliary control, and particularly discloses a loader auxiliary control system based on machine vision, which comprises a data acquisition module, a target detection module, an intelligent moving module and a loading path planning module. Obstacles and loads are classified through a classification method based on semantic segmentation, a segmentation result and a depth image are fused to obtain a mark point cloud, the obstacles and the loads are mapped in a 2D grid of a site, and loading machine moving path planning is performed through a DWA algorithm and an FGM algorithm. Different objects in a site can be identified and classified more accurately, a path for avoiding collision is planned, and the operation safety is improved; a mathematical model is established for the loading cost in the loading process, a parallel genetic algorithm is used for optimizing the cost problem, unnecessary movement and energy consumption are reduced, and fuel consumption and equipment abrasion are reduced.

A rapid tamping device for a local foundation comprises an excavator body, the excavator body is connected with a large arm, the large arm is connected with a small arm, oil cylinders are arranged on the large arm and the small arm respectively, a support is hinged to the small arm and the oil cylinder of the small arm together, a left fixing plate and a right fixing plate are arranged below the support, and the left fixing plate and the right fixing plate are connected with the excavator body. A lead screw is arranged between the left fixing plate and the right fixing plate, a mounting plate is arranged on the outer wall of the left fixing plate, a motor is arranged on the mounting plate, an output shaft of the motor is connected with the lead screw, a connecting block is arranged on the lead screw, a threaded hole is formed in the connecting block, and the connecting block is in threaded fit with the lead screw through the threaded hole. A left air cylinder and a right air cylinder are arranged at the bottom of the connecting block, piston rods of the left air cylinder and the right air cylinder are fixedly connected with connecting plates, and the two connecting plates are jointly and fixedly connected with a tamping assembly.

The utility model belongs to the field of automobile intelligence, particularly relates to an intelligent collision avoidance device, and provides the following scheme aiming at the problems that the existing automobile cannot intelligently avoid collision, reduce the possibility of accident occurrence, buffer impact force and improve the damage to the automobile and personnel due to collision: the intelligent collision avoidance device comprises a protective bar, and a protective cover is fixedly arranged on the front side of the protective bar; a protective plate is arranged in the protective cover in a sliding mode, two distance measuring sensors are symmetrically and fixedly arranged on the two sides of the protective bar and the front side of the protective plate, and audible and visual alarms are fixedly arranged on the two sides of the protective bar; the first buffering assembly is used for buffering the impact force; and the second buffering assembly is used for buffering the impact force. Through the arrangement of the distance measuring sensor and the audible and visual alarm, vehicles can be helped to avoid collision, the possibility of accidents is reduced, impact force is buffered through the first buffering assembly and the second buffering assembly, vehicle losses caused by collision are reduced, and meanwhile injuries caused by collision to people are reduced.

The utility model discloses a modular CT room for ships, which relates to the technical field of modular CT rooms and comprises a cabin, the cabin comprises a plurality of composite boards, each composite board comprises rock wool and two layers of galvanized steel plates, the rock wool is arranged between the two layers of galvanized steel plates, two side surfaces of the rock wool are connected with the two layers of galvanized steel plates through glue, and the two sides of the rock wool are connected with the two layers of galvanized steel plates through glue. Mounting grooves penetrating up and down are formed in the other two sides of the rock wool, lead plates are arranged in the mounting grooves, four sets of buffers are arranged at the four corners of the top of the cabin, two sets of buffers are arranged above the two adjacent side faces of the cabin, and one end of each set of buffer is connected with the outer wall of the cabin; according to the modularized CT room for the ship, the cabin body is fixedly installed on the ship plate of the ship body through the buffer, when the ship body moves, the hydraulic rod can achieve passive compensation through the buffering property of the hydraulic rod, and movement of the modularized CT room is slowed down.

A snap-fit plasma display module includes a first substrate (110) and a second substrate (210) arranged opposite thereto. A plasma display cavity is formed between the first substrate (110) and the second substrate (210), and the plasma display cavity is filled with plasma particles (320). A surface of the first substrate (110) is provided with a filter layer (120), and a surface of the second substrate (210) facing the first substrate (110) is provided with a pixel electrode layer (220). A plasma isolation structure (230) extending toward the first substrate (110) is arranged on the pixel electrode layer (220), a surface of the filter layer (120) facing the second substrate (210) is provided with a snap-fit structure (160), a shape of the snap-fit structure (160) is adapted to a shape of the plasma isolation structure (230) to fix the first substrate (110) and the second substrate (210), and each of the surface of the filter layer (120) facing the second substrate (210) and a surface of the snap-fit structure (160) facing the second substrate (210) is provided with a conductive dielectric layer (140). The plasma isolation structure (230) is wrapped by the snap-fit structure (160), which can increase an overall structural strength of the display and improve overall pressure resistance.

A pre-cut seed type sugarcane seeding device, the components include a seed filling box, a primary seeding drum, a seeding box, and a secondary seeding drum. The specific structure and connection relationship of the components are as follows: a seed filling baffle is connected to the outlet of the seed filling box, a primary paddle is evenly fixedly connected to the primary seeding drum, a spring is connected to the seeding baffle at the outlet of the seeding box, a diverter drum shaft is connected to the diverter drum, and a secondary paddle is evenly fixedly connected to the secondary seeding drum. The present invention can effectively reduce the seed leakage rate in the process of sugarcane seeding, reduce the phenomenon of sugarcane seed jamming, improve the uniformity of the seeding process, reduce machine vibration, and achieve accurate seeding.

The invention discloses a polyamide material for a light high-strength safety airbag shell and a preparation method of the polyamide material, and belongs to the technical field of modified polyamide materials. Comprising the following raw materials in parts by mass: 80-120 parts of modified polyamide resin, 10-15 parts of carboxylated lignin, 5-10 parts of modified potassium hexatitanate whiskers, 4-5 parts of silk fibroin, 1-2 parts of an antioxidant, 1-1.4 parts of a coupling agent, 1-1.5 parts of a lubricant, 0.5-0.9 part of a nucleating agent and 60-80 parts of deionized water. The potassium hexatitanate whisker is used as a carrier of the zinc-based metal organic framework, so that the impact resistance of the zinc-based metal organic framework is improved, the impact energy required by hole collapse and zinc-nitrogen bond breakage of the zinc-based metal organic framework is increased, and the injury to personnel caused by larger impact force when the safety airbag is started to pop off a polyamide shell material is avoided; the cucurbit [6] uril is grafted on a polyamide molecular chain, and a hydrophobic group is introduced on the polyamide molecular chain, so that the water absorption of the polyamide resin is reduced.

The utility model discloses a kind of for fry release's point fryer, including point fryer, light transmission plate, fry access, fry pipe, valve, night vision camera and illumination adjusting mechanism, the illumination adjusting mechanism includes mounting plate, cylinder, rotating motor, full light transmission film and several light-shielding film, fry is together with aquaculture water from fry access poured into point fryer, and then start rotating motor of two sides, rotating motor can drive cylinder rotation, cylinder can be wound full light transmission film, while two sides light-shielding film can be released, full light transmission film and light-shielding film will move from above light transmission plate, adjust light entering into point fryer, slow down the movement of fry by reducing the brightness in point fryer, so that night vision camera can collect clear and relatively stationary fry image data, so as to facilitate subsequent image recognition technology to obtain accurate fry quantity, and the fry quantity in point fryer is evaluated whole aquaculture pond fry quantity, provide data support for aquaculture.

The invention discloses an automatic feeding device for goose and duck fat liver production, the automatic feeding device comprises a feeding device for feeding and a supporting assembly for standing, the feeding device comprises a positioning frame, the top of the positioning frame is used in cooperation with a wall in a hanging mode, an annular rotating belt is arranged in the positioning frame, and the annular rotating belt is connected with the supporting assembly. A driving motor is used in cooperation with the top of the annular rotating belt, the bottom of the driving motor is used in cooperation with the right side of the top of the positioning frame, a connecting column is used in cooperation with the bottom of the annular rotating belt, and a feeding cage is arranged at the end, away from the annular rotating belt, of the connecting column. According to the method, a fixed-point feeding method is adopted, dripped feed can be directly recycled and immediately reused by using a clean container, and a clean environment is favorably kept, so that when the facility and the method are used for producing the goose and duck fat liver, time and labor are saved, stress reaction is reduced, and the method has the advantages of quality improvement, high efficiency, safety, environmental protection, saving and the like, and has multiple purposes.

The application discloses a piano finger force practice device, which comprises practice modules corresponding to fingers one by one; a locking mechanism is used for locking the practice modules, so that only the target practice module can be pressed down each time; the locking mechanism of the piano finger force practice device can lock the practice modules except the finger instruction finger when practicing finger method, and the locked practice modules do not move when the finger method is practiced and the instruction practice module can move, and other fingers are in a relaxed state; after long-time practice, muscle memory is formed, and irrelevant finger movement is reduced.

A parallel link mechanism includes three or more link mechanisms that couple a fixed base and an end-effector base. The end-effector base has a facing surface facing the fixed base. The link mechanisms each include a proximal-end joint, a proximal link, an intermediate joint, a distal link, and a distal-end joint. The proximal-end joint is rotatably coupled to the fixed base. The proximal link is coupled to the proximal-end joint. The intermediate joint is provided to the proximal link. The distal link is rotatably coupled to the proximal link via the intermediate joint. The distal-end joint rotatably couples the distal link to the end-effector base. The point of intersection at which the extensions of the axes of rotation of the proximal-end joints, the extensions of the axes of rotation of the intermediate joints, and the extensions of the axes of rotation of the distal-end joints intersect is the center of rotation of the end-effector base. The center of rotation of the end-effector base is positioned in a first direction with respect to the facing surface.

Compositions and methods are disclosed for providing a pet food product comprising kibbles and one or more inclusions, such as dried fruits or vegetables. Specifically, the kibble may have one or more shapes to form an interlock, and / or the inclusions are oil-coated to provide for increased density and reduce the density differences between the inclusions and the kibbles, both features are useful for keeping an even distribution of kibbles and inclusions in a package or container.

The invention provides a detection method and device for assisting in determining the sleep quality grade, and the method comprises the steps: placing a multimode optical fiber at a preset position of a target object, continuously collecting coherent light emitted from the multimode optical fiber, and continuously detecting the heart rate, muscle state and environment state of the target object, obtaining a coherent image sequence, a first heart rate sequence, a first myoelectricity sequence and a first environment feature sequence; performing singular value decomposition on the plurality of coherent images to obtain a first posture feature sequence and a first motion feature sequence; performing abnormal data detection and correction on the plurality of first sequences based on an agglomerated hierarchical clustering algorithm; performing data screening on the second sequence according to the correlation degree between the data at the same moment in the second sequence and the second environment feature sequence; and combining and arranging the plurality of connotation mode components corresponding to the plurality of third sequences, and inputting an obtained multi-dimensional feature map into a target prediction model to obtain a sleep quality level.

The utility model is applicable to the technical field of battery packs, and provides a battery box, the peripheral side wall of the battery pack in the battery box is in sliding fit with the peripheral inner wall of the box body, so that the displacement of the battery pack relative to the box body can be limited in the height direction of the box body. When the battery box provided by the utility model is applied to a vibration / bumping scene, the battery pack can move up and down relative to the box body, the battery pack can be buffered through the repulsive force between the third magnet and the first magnet and the repulsive force between the fourth magnet and the second magnet so as to be prevented from being damaged, and meanwhile, in the movement process of the battery pack, the battery pack is prevented from being damaged. When the battery pack vibrates, air in the box body can be compressed, counter-acting force generated by the compressed air on the battery pack can counteract part of magnet repulsive force, movement of the battery pack is slowed down, so that the effect similar to a damper is achieved, the process of damping the battery pack is completed, and the magnets are long in service life and difficult to lose efficacy due to the material characteristics of the magnets. Therefore, the battery box provided by the utility model can have relatively long service life.

The utility model relates to the technical field of air valve flaw detection, and discloses an internal combustion engine air valve flaw detection device which comprises a workbench, a first motor is fixedly connected to the interior of the workbench, the output end of the first motor is fixedly connected with a rotating plate, and the outer wall of the rotating plate is rotationally connected to the interior of the workbench. And connecting rods are rotationally connected to the two ends of the rotating plate correspondingly, a sliding plate is rotationally connected to one end of each connecting rod, a support is fixedly connected to the upper surface of the outer wall of each sliding plate, the lower surface of each support is slidably connected to the upper surface of the workbench, and a second motor is fixedly connected to the interior of each support. According to the utility model, the motor I drives the rotating plate to move, and then the connecting rod and the sliding plate are matched to drive the support to move to the two ends of the air valve, so that the problem that the air valve is difficult to stably fix during flaw detection is solved, the air valve is stably fixed, the movement of the air valve in the flaw detection process can be reduced, and the detection accuracy is improved.

The present invention relates to the technical field of ceiling lamps, and specifically to a ceiling lamp with an air purification function, comprising a lamp cup, a lamp board arranged in the lamp cup, a panel arranged on the top of the lamp cup, and an air purification integrated module; a combined emission head is arranged on the surface of the panel; the combined emission head comprises a shell and a first emitter arranged in the shell; a negative ion purification module is arranged in the air purification integrated module; the first emitter is connected to a first high-voltage line; the negative ion purification module is connected to the first high-voltage line; the shell is provided with a first emission hole; the height of the first emitter end is lower than the height of the first emission hole. The height of the first emitter end of the present invention is lower than the height of the first emission hole, so that negative ions enter the air to perform Brownian motion and collide forward, which can effectively reduce the movement of negative ions in the horizontal direction of the ceiling lamp, thereby avoiding the black wall phenomenon caused by static electricity accumulation of dust on the surface area of ​​the ceiling lamp and nearby walls.