29results about How to "Not affected" patented technology

The utility model discloses a motorcycle throttle valve model and a linkage structure thereof, and belongs to the technical field of throttle valves. The motorcycle throttle valve model and the linkage structure thereof comprise a throttle valve body, a driving assembly and two locking assemblies, the driving assembly is arranged outside the throttle valve body, the locking assemblies are arranged in the throttle valve body, the throttle valve body comprises a shell, two air inlet cavities are formed in the shell, and the two air inlet cavities are communicated with the driving assembly. Rotating shafts are arranged in the two air inlet cavities, long grooves are formed in the rotating shafts, valve plates are arranged in the long grooves, plugging blocks are arranged on one faces of the valve plates, through grooves are formed in the two sides of the outer portions of the plugging blocks, inserting grooves are formed in the top ends and the bottom ends of the interiors of the through grooves, the locking assembly comprises two locking seats, and one faces of the locking seats are fixedly connected with the inner walls of the long grooves. Square grooves are formed in the top face and the bottom face of the locking base, inserting blocks are arranged in the two square grooves, and the opposite ends of the two inserting blocks are clamped with the two inserting grooves respectively.

The utility model relates to the technical field of asphalt mixture rotary compactors, and discloses an asphalt mixture rotary compactor which comprises a bottom plate, a spinning instrument is mounted at the top of the bottom plate, a mounting disc is fixedly connected to the top of the spinning instrument, a fixing frame is fixedly connected to the top of the mounting disc, and the fixing frame is fixedly connected to the bottom of the bottom plate. A fixing mechanism is arranged in the fixing frame, and a cleaning mechanism is arranged at the top of the fixing mechanism; the fixing mechanism comprises a driving assembly, the rear side of the driving assembly is installed in the fixing frame, a sliding plate is fixedly connected to the front side of the driving assembly, and fixing shafts are fixedly connected to the left side and the right side of the sliding plate. In the spinning process, displacement of the die sleeve is avoided through stable clamping of the clamping ring, a stable foundation is provided for the rotary main shaft of the spinning instrument to drive the pressing head to accurately compact the asphalt mixture, and the spinning stability and the accuracy of experimental data are guaranteed.

The invention relates to a bucket elevator for a dryer, which can realize grain quantity detection, and the total weight of grains can be calculated by metering the total quantity of hoppers only by flattening hoppers to enable the weight of each hopper of grains to be consistent. The trowelling mechanism is located above the feeding port and comprises a rotating shaft and a plurality of trowelling elastic pieces evenly distributed in the circumferential direction of the rotating shaft, the rotating shaft is parallel to the axis of the traction wheel, the rotating shaft is driven by a gear motor, and when the rotating shaft rotates, the lower edges of the trowelling elastic pieces are in sliding fit with the upper edge of the hopper so as to trowelling grain in the hopper; the rotating speed of the rotating shaft is matched with that of the traction wheel, so that the trowelling elastic pieces are matched with the hoppers one by one; the material returning mechanism comprises a vertically-arranged spiral conveyor, an inlet is formed in the lower portion of the spiral conveyor, an outlet is formed in the upper portion of the spiral conveyor, the outlet is communicated with the interior of the machine shell through a discharging pipe, and the discharging pipe is located below the feeding port. A funnel structure is arranged at the bottom of the machine shell, and a material returning opening is formed in the lower portion of the funnel structure and communicated with the inlet through a material returning pipe.

A battery pack is provided with: a battery cell having a relief valve that opens as a result of an increase in internal pressure and discharges gas to the outside; an exhaust passage through which the gas discharged from the relief valve flows; a heat insulation member provided so as to cover the relief valve; and a holding member that holds the heat insulating member, in which a housing portion is provided in a wall portion of the exhaust passage at a position facing the heat insulating member, and the heat insulating member insulates heat between the exhaust passage and the battery cells when the safety valve is not opened. When the safety valve is opened, gas discharged from the safety valve is separated from the holding member and stored in the storage part, and the gas discharged from the safety valve is insulated from the wall part of the exhaust passage.

The utility model relates to the technical field of distribution box, concretely is a kind of intelligent mechanism distribution box, including distribution box component, the distribution box component includes box, the front of box is fixedly connected with end cap frame, and the front of end cap frame is hinged with decorative cover plate;Mounting assembly, the mounting assembly includes support seat and first hinged seat, the support seat and first hinged seat are all fixedly connected in the inner wall of box, the outside of first hinged seat is hinged with hinged rod, the other end of hinged rod is slidably contacted with guide frame, the top of guide frame is fixedly connected with guide rail.The utility model can be installed on the electric device of guide rail by the setting of position adjustable guide rail mounting structure, the guide rail can be pulled out to the outside of box when being installed, to improve the convenience of electric device snap installation, not affected by the space inside box, greatly improve the convenience of device use.

This utility model relates to the field of high-voltage equipment technology and proposes a transformer wall-mounted neutral point device, including a transformer and a neutral point device. The neutral point device is located on one side of the transformer. The neutral point device and the transformer are connected by a seismic expansion joint fixed with screws. The seismic expansion joint includes an expansion part and connecting parts located on both sides of the expansion part. The two sides of the expansion part are connected to the two connecting parts by welding. A connecting chain connects the two expansion parts. By installing the neutral point device on the transformer body, the concrete foundation in the prior art is eliminated, saving civil engineering costs and improving the efficiency of installing the neutral point device. Without a separate foundation, there is no need to consider the damage to structural components caused by foundation settlement. Finally, the integrated structure has better seismic performance.

The utility model discloses a layered anti-counterfeit label which comprises a base layer, a first anti-counterfeit layer, a second anti-counterfeit layer and a protective layer are sequentially arranged on the upper surface of the base layer, and an adhesive layer and release paper are arranged on the lower surface of the base layer. The first anti-counterfeiting layer comprises a first anti-counterfeiting pattern layer and a first fluorescent ink layer, the second anti-counterfeiting layer comprises a second anti-counterfeiting pattern layer and a second fluorescent ink layer, and the protective layer is composed of a transparent plastic film layer and a wear-resistant layer. Wherein the first anti-counterfeiting pattern layer and the second anti-counterfeiting pattern layer are different in pattern and are matched with each other to form a complete anti-counterfeiting pattern, and the first fluorescent ink layer and the second fluorescent ink layer emit different colors of fluorescence under ultraviolet irradiation. The transparent plastic film layer adopts a PET (Polyethylene Terephthalate) film, the wear-resistant layer is a polyurethane coating, and the adhesive layer adopts an acrylate pressure-sensitive adhesive. According to the anti-counterfeit label, through the multi-layer structure and the unique anti-counterfeit design, the anti-counterfeit performance is remarkably improved, and the anti-counterfeit label is difficult to counterfeit; the protection layer can effectively protect the anti-fake layer, the service life is prolonged, and the anti-fake label is simple in structure, low in cost and suitable for large-scale production and application.

The utility model relates to the technical field of robots, and discloses an armed quadruped robot based on environmental perception, which comprises a main body, the top surface of the main body is connected with a multi-axis mechanical arm, the multi-axis mechanical arm comprises a base frame, the bottom end of the base frame is coupled with a turntable, the axis of the bottom end of the turntable is connected with a servo motor, and the servo motor is connected with a servo motor. A connecting frame is fixed to the top end of the base frame, a containing arm is connected to the middle of the connecting frame through a shaft, a containing groove is formed in the top face of the containing arm, a sealing plate is clamped to the inner wall of the containing groove, and a connecting wire is arranged on the bottom face of the sealing plate. The folded storage arm is stored through the storage cavity formed in the top face of the robot body, the storage arm can be matched with the storage groove to store the folded connecting arm, and the multi-section synchronous storage and folding process is formed; and the robot body can be completely stored in the storage cavity, it is ensured that the size of the robot body is completely not affected by the folded mechanical arm, and convenience is provided in the using process.

The utility model relates to the technical field of high-temperature calcination of powder, and discloses an indirect heating type high-temperature atmosphere shaft furnace, which comprises a feeding device, a heating device and a heating device, the pushing device is connected with the feeding device and used for pushing the materials to the material storage pipe body; the material storage pipe body is a vertical cylindrical container and is internally used for accommodating and conveying materials; the heating rods are distributed in the axial direction of the material storage pipe body and used for providing a high-temperature heat source. And the heating rods are axially distributed along the material storage pipe body, so that the heating efficiency is improved, the materials are uniformly and efficiently heated, and the energy utilization efficiency is remarkably improved. Due to the arrangement of heat preservation cotton and a heat insulation layer, heat loss is effectively reduced, the temperature in the furnace is more stable, and the calcination efficiency is further improved. Meanwhile, different temperature intervals can be formed in the furnace due to the design of the thermal insulation layer, so that the requirements of different materials on temperature are met, and the applicability of the equipment is enhanced.

The present application relates to the field of unmanned aerial vehicle communication, in particular to a multi-unmanned aerial vehicle cooperative communication relay path planning method, the multi-unmanned aerial vehicle cooperative communication relay path planning method includes the establishment of the visibility model and the description and solution of the optimization problem, the relay unmanned aerial vehicle is introduced between the task unmanned aerial vehicle and the ground station, the communication relay link between the relay unmanned aerial vehicle and the task unmanned aerial vehicle and the ground station is constructed, and the communication transmission between the task unmanned aerial vehicle and the ground station is maintained; based on the minimum energy consumption criterion, a multi-step optimization model considering the visibility constraint and the unmanned aerial vehicle maneuverability is established, and the optimization problem is solved by a particle swarm optimization algorithm. The present application solves the problem of unmanned aerial vehicle communication interruption in complex mountainous environment, avoids the communication link interruption caused by the task unmanned aerial vehicle flying through the corner of the mountain in a short time, and ensures the smooth communication link in complex mountainous environment by applying the method to multi-unmanned aerial vehicle cooperative relay communication.

The utility model discloses a lithium battery thermal invalidation testing device, including pressure container, electric core clamp, needle system, thermal trigger interface, charge trigger interface, image acquisition system and data acquisition interface, electric core clamp sets up in pressure container, is used for clamping lithium battery, needle system sets up opposite lithium battery, thermal trigger interface, charge trigger interface set up on pressure container, are used for carrying out high temperature overcharge invalidation test, short -circuit invalidation test, image acquisition system sets up in pressure container top, is used for recording test image, data acquisition interface sets up on pressure container, is used for gathering thermal invalidation test data. The utility model can simulate lithium battery thermal invalidation test, and collect its invalidation after gas and relevant test data.

The utility model relates to the technical field of gypsum boards, in particular to a moisture-proof gypsum board which comprises a first gypsum board, a second gypsum board is fixedly arranged on one side of the first gypsum board, clamping blocks distributed in an array mode are connected to one side of the interior of the first gypsum board in a clamped mode, and two limiting boards used for fixing the clamping blocks are connected to one sides of the clamping blocks in a clamped mode. According to the gypsum board, the limiting plates, the round rods and the gypsum side plates are utilized to reinforce the installation of the clamping blocks, so that the two gypsum boards can be stably and firmly connected by utilizing the three clamping blocks, and the two gypsum boards can be stably and firmly connected by utilizing the three clamping blocks; the gypsum board is prevented from being loosened and broken, the overall stability of the damp-proof gypsum board is improved, the gypsum board can have the damp-proof capacity through the first damp-proof board and the second damp-proof board, the ventilation effect can be achieved in cooperation with the ventilation grooves in the supporting partition plates, and the damp-proof effect of the gypsum board is improved.

The utility model relates to the technical field of audio equipment, and especially relates to a split type magnetic attraction splicing expansion Bluetooth sound box. The split type magnetic attraction splicing expansion Bluetooth sound box comprises two Bluetooth sound boxes, loudspeaker units, damping mechanisms, guide blocks and the like, the two Bluetooth sound boxes are distributed in a front-back mode, each Bluetooth sound box is internally provided with one loudspeaker unit, each loudspeaker unit is provided with one damping mechanism, and the guide blocks are arranged on the loudspeaker units. Wherein the rear side of one Bluetooth sound box is fixedly connected with a trapezoidal guide block, the front side of the other Bluetooth sound box is provided with a guide groove, and the guide block is in sliding fit with the guide groove. According to the utility model, the electric contacts are covered by the electric telescopic rod and the baffle plate, so that the electric contacts are protected from being influenced by the external environment, good contact between the electric contacts is ensured, and meanwhile, the anti-oxidation coatings coated on the surfaces of the electric contacts can effectively prevent metal surface oxidation, prolong the service life of the electric contacts and maintain stable electric connection.

The utility model belongs to the technical field of workpiece nitriding machining, and particularly relates to a workpiece nitriding combined machining device which comprises a cleaning box and further comprises a fixed seat movably installed in the cleaning box, a motor is fixedly installed in the fixed seat, a brush is fixedly installed at the output end of the motor, and the brush is connected with the cleaning box. A high-pressure spray head is fixedly installed between the brushes, a water pipe is fixedly arranged at the top of the high-pressure spray head, a pneumatic diaphragm pump is movably installed on the surface of the water pipe, a workpiece needing to be cleaned can be placed through the fixing base, and then a worker adds alcohol into an alcohol box and starts the pneumatic diaphragm pump; alcohol is pumped into the high-pressure spray head from the inside of the water pipe, then the alcohol is sprayed to a workpiece, then the motor is started to drive the brush to wipe the surface of the workpiece, the alcohol volatilizes quickly, the workpiece can be dried after being wiped, and the workpiece can be subjected to surface cleaning after nitriding, dust is avoided, and later nitriding work is not affected.

This utility model discloses a dual six-degree-of-freedom motion simulation platform and a dual-floating-body dynamic operation simulator, belonging to the field of simulation equipment technology. It includes two bases and two upper platforms. Several electric cylinders are rotatably mounted on the top of each base, and the bases are connected to the upper platforms via these electric cylinders. The upper platforms are rotatably mounted to the electric cylinders. One side of one upper platform is fixedly equipped with a plug-in end and a hinge arm, while one side of the other upper platform is fixedly equipped with a receiving end and a hinge seat. The plug-in end and the receiving end cooperate, and the hinge arm and the hinge seat cooperate. The beneficial effects of this utility model are: by driving different electric cylinders to extend and retract to different degrees, the upper platforms can be adjusted to six degrees of freedom, allowing for lifting, tilting, and docking of the two motion platforms. This provides structural support for simulating maritime wind and wave environments, enhances the training experience, and improves the efficiency and effectiveness of simulation training.

The application discloses a wing unfolding mechanism using a torsion spring, which comprises a mounting support, a limiting sleeve, a shaft sleeve, a rotating shaft, a torsion spring, a bearing for the shaft sleeve and a bearing for the rotating shaft; the wing unfolding mechanism is installed at the lower part of the fuselage of an aircraft; two groups of wings of the aircraft are stacked one above another and connected with the fuselage of the aircraft through the wing unfolding mechanism; in the storage and transportation state, the two groups of wings are folded to the lower part of the fuselage of the aircraft and parallel to the axis of the fuselage through the wing unfolding mechanism; when the wings are unfolded, the two groups of wings are reversely rotated under the action of the wing unfolding mechanism, and are locked by the wing unfolding mechanism after being unfolded to the position. The whole structure is compact, the synchronous unfolding of the two groups of wings is realized by using one torsion spring, the whole weight is light, the occupied space in the aircraft is small, and the limiting position is accurate and reliable.

The invention discloses a method for detecting food-borne pathogenic bacteria based on Argonaute protein in combination with loop-mediated isothermal amplification and electrochemical biosensing, and belongs to the technical field of microbiological detection and biosensing. The integrated detection method based on Argonaute protein, loop-mediated isothermal amplification and electrochemical biosensing, which is high in sensitivity, strong in specificity, simple and convenient to operate and suitable for on-site rapid detection, is provided aiming at the problems that an existing food-borne pathogenic bacterium detection method is insufficient in sensitivity, depends on complex instruments, is difficult to apply on site and the like. Target nucleic acid is subjected to exponential amplification through LAMP (loop-mediated isothermal amplification), then Argonaute-mediated two-stage specific recognition and signal transduction are performed, and finally reading is performed through a high-sensitivity electrochemical platform, so that the detection limit of salmonella typhimurium as high as 1 CFU / mL is realized, and the detection range can cover 100-108 CFU / mL.

This invention relates to the field of lubrication system technology and proposes an intelligent lubrication system for dock gantry cranes. The system includes an oil pump control circuit comprising an operational amplifier U1, a NAND gate U2, a NOT gate U3, switching transistors Q1 and Q2, and a resistor R4. The non-inverting input of operational amplifier U1 is connected to a reference voltage Vref. The output of operational amplifier U1 is connected to the first input of NAND gate U2. The input of NOT gate U3 is connected to the main control unit, and the input of NOT gate U3 is connected to the second input of NAND gate U2. The output of NAND gate U2 is connected to the control terminal of switching transistor Q1, and the output of NOT gate U3 is connected to the control terminal of switching transistor Q2. The first terminal of switching transistor Q1 is connected to a 24V power supply, and the second terminal of switching transistor Q1 is connected to the first terminal of the oil pump. The first terminal of switching transistor Q2 is connected to the second terminal of the oil pump, and the second terminal of switching transistor Q2 is grounded through resistor R4. The second terminal of switching transistor Q2 is connected to the inverting input of operational amplifier U1. This technical solution solves the problem of unstable power supply operation of the oil pump in related technologies.

This utility model discloses a connector socket for electric vehicles, disposed on a thin sheet plate, including a socket shell and a socket core. The socket shell includes a first flange and a receiving groove, and the socket core includes a second flange and a core portion. The first flange is tightly fitted to the first surface of the thin sheet plate, and the second flange is tightly fitted to the second surface of the thin sheet plate. The core portion passes through the thin sheet plate and is inserted into the receiving groove. A set of bolts is respectively installed along the edges of the first flange, the thin sheet plate, and the second flange to fix the three together. A sealing layer is provided on the end face of the second flange to seal the gaps between the three. This design sets the first flange and the second flange to form surface contact with the first and second surfaces of the thin sheet plate to increase the contact area between the three, while the sealing layer seals the gaps between the three, ensuring the reliability of the connection between the three.

The utility model relates to a straight arm hydraulic control valve group for an overhead working truck, which comprises a valve block provided with a plurality of oil ports for an oil source to enter and transfer; the electromagnetic valve group is fixedly arranged on the valve block and is used for generating hydraulic kinetic energy for controlling the steering of a high-altitude vehicle and the amplitude variation of a straight arm; the throttle valve is fixed on the valve block, is communicated with the electromagnetic valve group through a flow channel, and is used for adjusting the steering speed of the steering oil cylinder; the overflow valve group is fixed on the valve block, is communicated with the flow channel and is used for adjusting the pressure of the valve group; and the one-way throttle valve is fixedly arranged on the valve block, is connected with the variable-amplitude oil cylinder through a flow channel and is used for controlling the descending speed of the variable-amplitude oil cylinder. The hydraulic control valve set has the effects that the hydraulic control valve set can be reasonably arranged conveniently, and the installation space is reduced.

The utility model discloses a stepless damping navigation tool, which relates to the field of medical treatment and comprises a holding base, a dynamic adjusting machine head and a damping device. The navigation assembly is connected with the holding base; the sleeve is inserted into a center hole of the holding base, a mounting hole is further formed in the holding base, the mounting hole is perpendicular to the axial direction of the center hole, a damping check block is inserted into the mounting hole, and the damping check block is attached to the outer surface of the sleeve through a damping fin; according to the navigation tool, the damping fin is attached to the sleeve through the damping check block, so that it is ensured that the sleeve is stably connected to the holding base, the navigation assembly is arranged on the holding base, and the sleeve can be recognized and tracked conveniently.

The utility model discloses a waterproof humidity indicating valve, it includes: valve body, the valve body lower extreme has the installation portion, and the valve body upper end is equipped with the echelon installation groove, humidity indicating card that can produce discoloration response to environmental humidity, its installation is in echelon installation groove, transparent piece, its inlay installation is in echelon installation groove and covers humidity indicating card top, and the sealed assembly is formed through inner sealing ring between transparent piece and echelon installation groove, fastener, its fixed in echelon installation groove, and transparent piece is fastened in echelon installation groove, and transparent piece is exposed to the outside of valve body so that can see humidity indicating card through transparent piece. The utility model discloses through the color change of humidity indicating card in valve body, and the humidity change of internal environment is indicated in time, and through transparent piece direct observation, timely grasps the humidity change in the environment, thereby takes certain measure to reduce the damage of humidity to material or instrument and equipment, can also prevent the damage of outside dust and water vapor to internal environment, reaches waterproof and moisture -proof function.

The utility model discloses a ship lock miter gate waterproof absolute opening on -line monitoring device, the utility model relates to gate absolute opening monitoring technical field. The ship lock miter gate waterproof absolute opening on -line monitoring device, including moving ruler, static magnetic pointer and miter gate, moving ruler includes arc slot, magnetism plate and PCB array, and PCB array sets up in the inside of arc slot, and magnetism plate sets up in the lower surface of arc slot, and PCB array includes PCB board, and the outer surface of PCB board is provided with hall device array and controller, and static magnetic pointer includes support, angle code and permanent magnet, and angle code is symmetrically arranged in the both sides of permanent magnet, the utility model discloses non -contact means, installs the sensor on the gate, and the absolute opening information of gate is obtained through the method of direct monitoring.

The utility model provides a rail transit station escalator health monitoring device which comprises a fixed baffle, a sliding clamping groove is fixedly connected to the inner wall of the side end of the fixed clamping groove, a detection device is arranged in a supporting frame, a telescopic baffle is arranged on the inner wall of the side end of the supporting frame, and the telescopic baffle is fixedly connected with the sliding clamping groove. Limiting rods are mounted and connected to the inner walls of the tops of the two ends of the telescopic baffle, locking rods are mounted and connected to the inner walls of the bottoms of the two ends of the telescopic baffle, and sliding locking plates are slidably connected to the inner walls of the side ends of the sliding locking grooves. According to the rail transit station escalator health monitoring device, protection with different requirements can be carried out according to different operating environments and working conditions through matched use of the telescopic baffles and the locking pieces, internal sensors and electronic elements are protected against the influence of severe environments, meanwhile, in later use, the safety of the escalator is improved, and the service life of the escalator is prolonged. And a telescopic baffle at the front end of the device can be conveniently stored, so that later-stage use operation of workers is facilitated.

The invention provides a self-adaptive photovoltaic support structure suitable for slope topography, and relates to the technical field of photovoltaic supports. The self-adaptive photovoltaic support structure suitable for the slope terrain comprises a fixing seat, an adjusting mechanism is arranged on the inner side of the fixing seat, the adjusting mechanism comprises a rotating wheel, supporting legs are fixedly installed at the two ends of the lower portion of the fixing seat, supporting cylinders are arranged on the outer sides of the two supporting legs in a sleeving mode, and placing cavities are formed in the middles of the inner sides of the two supporting legs; wherein a second threaded rod is rotationally installed on the inner side of one containing cavity, a first threaded rod is rotationally installed on the inner side of the other containing cavity, the tops of the first threaded rod and the second threaded rod penetrate through the fixing base and extend to the position above the fixing base, and a third gear is fixedly installed on the top of the upper portion of the first threaded rod. The self-adaptive photovoltaic support structure suitable for the slope terrain has the advantages of being easy to operate, high in use stability and convenient to install the support and the photovoltaic panel.

This invention relates to the field of plant breeding technology, and particularly to SNP loci related to the oil content of Camellia oleifera seed kernels in Hainan and their applications. The SNP loci include one or more of Chr27_83344296, Chr43_56056639, or Chr15_65268299; Chr27_83344296 is located at position 83344296 on chromosome 27, with a polymorphism of G / T; Chr43_56056639 is located at position 56056639 on chromosome 43, with a polymorphism of C / T; and Chr15_65268299 is located at position 65268299 on chromosome 15, with a polymorphism of G / A. By detecting the polymorphism of these SNP loci, the oil content of Camellia oleifera seed kernels in Hainan can be detected at the seedling stage, significantly reducing production costs and improving selection efficiency, thus possessing significant application value.

The application discloses a device for breeding eels in rice fields, which comprises a ring-shaped ditch, a plurality of eel nests and a multifunctional box. The ring-shaped ditch is arranged between a ridge and a small ridge around the rice field. The plurality of eel nests are arranged in the ring-shaped ditch. The multifunctional box is arranged on the ridge around the rice field. The multifunctional box supplies the plurality of eel nests with required bait, water and air through a main pipeline. The eel nest comprises a nest body, two S-shaped outlet structures and a nest pipeline. The nest body is a flat tubular structure. The eel can freely turn around in the nest body. The two S-shaped outlet structures are respectively connected to two ends of the nest body. The nest pipeline is arranged perpendicularly to the nest body. One end of the nest pipeline is communicated with the nest body. The other end of the nest pipeline is connected to the main pipeline. The device provides artificial nests for eels in modern planting rice fields. The eel breeding, feeding and management are convenient. The eel breeding is not affected by chemical fertilizers and pesticides. The eel breeding does not affect the mechanized harvesting of rice. The eel breeding promotes the growth of eels and the yield increase of rice fields.

The utility model belongs to the technical field of washing machine production, and particularly discloses detection equipment for a washing machine shell. According to the detection equipment for the washing machine shell, the shell transplanting mechanism is used for clamping the shell machined on the washing machine shell machining production line and placing the shell on the shell bearing platform for testing, and the detection equipment is independent of the washing machine shell machining production line and does not occupy the production takt of the washing machine shell machining production line; the shell bearing platform rotates and is matched with the scanning mechanism, the position coordinates of the shell arranged on the shell bearing platform are obtained, the size of the shell is obtained according to the obtained position coordinates of the shell, and the detection equipment can be compatible with detection of the sizes of shells of various models and is not affected by a washing machine shell processing production line.

The invention belongs to the field of analytical chemistry, and particularly relates to a method for simultaneously detecting various carotenoids. The invention provides a method for detecting carotenoid in a tomato sample by utilizing an HPLC (High Performance Liquid Chromatography) method, which comprises the following steps: carrying out isocratic elution by adopting an Inertsil ODS-3 chromatographic column and taking methanol, acetonitrile and dichloromethane in a volume ratio of 7: 10: 3 as a mobile phase formula, and detecting the sample in a detector; the carotenoid comprises at least one of astaxanthin, xanthophyll, cantharidin, zeaxanthin or beta-carotene. According to the method, astaxanthin, zeaxanthin, beta-carotene and lycopene in a sample can be effectively eluted, separated and detected, main peaks can be completely separated, and the analysis method is high in specificity, has a better linear curve in a low concentration range, is not influenced by personnel and instruments, and is stable and reliable.