43results about How to "Avoid passing" patented technology

The application relates to the field of crane technology and discloses a simple electric hoist bridge crane, which comprises an end beam, the outer surface of the upper end of the end beam is fixedly connected with a cross beam, the outer surface of the upper end of the cross beam is provided with a slide, the outer surface of the upper end of the cross beam is slidably connected with a support, the outer surface of the upper end of the support is fixedly connected with a hydraulic tank, the outer surfaces of the front end and the rear end of the hydraulic tank are fixedly connected with air pipes, the inside of the support is rotationally connected with a main shaft, the outer circular surface of the main shaft is slidably connected with a steel rope, and the lower end of the steel rope is fixedly connected with a hook. The simple electric hoist bridge crane has the advantages of avoiding the harm of steel rope fracture to the personal safety of surrounding workers, avoiding the chaotic winding of the steel rope in the electric hoist, and the like, and solves the problems of the harm of steel rope fracture to the personal safety of surrounding workers and the chaotic winding of the steel rope in the electric hoist.

The utility model discloses a kind of heat insulation type outer wall bricks, relate to outer wall brick technical field, including outer wall brick ontology, the side surface of outer wall brick ontology is inserted with decorative plate assembly, the outer wall of outer wall brick ontology One side is equipped with first plug block, the outer wall of outer wall brick ontology Another side is equipped with first slot, the inside of outer wall brick ontology is equipped with hollow layer, first cavity, second cavity and third cavity, the inside of second cavity is equipped with heat insulation layer.The heat insulation type outer wall brick, through decorative plate assembly adopts detachable design, it is convenient to maintain or replace decorative plate ontology, decorative plate ontology can also be replaced according to need appearance, and the inside of outer wall brick ontology is provided with hollow layer, first cavity, second cavity and third cavity, can effectively isolate the transmission of heat, prevent solar radiation heat through outer wall brick ontology transmission to indoor in summer, cause indoor temperature to rise, affect the quality of living and working environment.

The utility model belongs to the technical field of electronic mechanical brakes, and particularly relates to a brake which comprises a brake pad, a brake disc, an abutting piece and a moving piece which are arranged in the same linear direction, the side, away from the brake pad, of the abutting piece is provided with a first arc-shaped face, and the moving piece is provided with a second arc-shaped face attached to the first arc-shaped face. The brake further comprises a connecting piece made of flexible materials, the connecting piece is arranged between the abutting piece and the moving piece, and the connecting piece can deform when the abutting piece is subjected to unbalance loading applied by the self-braking piece so that the abutting piece can deflect relative to the moving piece. According to the technical scheme, when the abutting part is subjected to the unbalance load, the connecting part can deform, so that the first arc-shaped surface and the second arc-shaped surface can deflect to unload the unbalance load, the unbalance load can be prevented from being transmitted to the moving part and the driving part, and the service life of the moving part and the service life of the driving part are prolonged.

The application relates to the field of graphene oxide drying technology and discloses an electric auxiliary heating vacuum freeze drying graphene oxide equipment, which comprises a vacuum drying box, a vacuum pump box and a compressor box, the vacuum pump box and the compressor box are respectively provided with vacuumizing assemblies and refrigeration compressor groups, the vacuum drying box comprises a drying bin and a cold trap bin, the drying bin and the cold trap bin are communicated and air circulation is realized by installing a fan on adjacent partition plates, the inside of the drying bin further comprises a heating assembly and a graphene placing rack. The electric auxiliary heating vacuum drying can greatly shorten the drying time, the drying time can be shortened by 300%-400%, the electric auxiliary heating system is independent of the vacuum drying main system, the electric auxiliary heating system is flexible and convenient, the electric auxiliary heating temperature can be adjusted according to the drying condition, a heat insulation layer is arranged to prevent heat from being transferred to the vacuumizing assemblies and the refrigeration compressor groups, so that the system is prevented from working under over-temperature, and the graphene placing tray is more convenient to take through the setting of a discharging assembly.

This utility model discloses a photovoltaic-thermal module for an evaporator, including a photovoltaic module, a heat absorber plate, a heat absorption channel, and a frame. A junction box is provided inside the photovoltaic module. The heat absorber plate is fixedly connected to the back of the photovoltaic module, and the heat absorption channel is fixedly connected to the heat absorber plate. Refrigerant circulates within the heat absorption channel. The heat absorption channel includes a manifold and branch pipes. The manifold has a closed design at both ends and is connected to a connecting pipe. The branch pipes are internally threaded thin tubes with a diameter of 3-10 mm. Both ends of the branch pipes are connected to the manifold, and one or more semi-circular bends are provided along the length of the same branch pipe. Using this photovoltaic-thermal module significantly reduces the risk of photovoltaic panel deformation and microcracks in the solar cells, simplifies the manufacturing process, reduces costs, and optimizes heat exchange efficiency.

The application discloses a heat exchanger and a gas water heater, and relates to the technical field of water heaters. The heat exchanger comprises a shell, a heat exchange component and at least two cooling flow channels. The shell is internally formed with a heat exchange chamber. The heat exchange component is installed in the heat exchange chamber, and the heat exchange component is provided with a heat exchange flow channel. The at least two cooling flow channels are communicated with the heat exchange flow channel, and are arranged in parallel on the side wall of the heat exchange chamber along the direction of flue gas flow. The technical scheme of the application can effectively cool the wall surface of the heat exchange chamber, prevent heat from being transferred outward, improve the heat exchange efficiency, reduce water flow resistance and improve flow.

This utility model discloses an amorphous alloy three-dimensional wound core transformer, including an oil tank and a transformer body. A first sound-absorbing component is fixed on the inner wall of the oil tank. The transformer body includes a vibration damping mechanism, a clamping frame mechanism fixed on top of the vibration damping mechanism, a second sound-absorbing component fixed on the outer surface of the clamping frame mechanism, an amorphous alloy three-dimensional wound core mounted on the clamping frame mechanism via a pad mechanism, and coil windings wound on the amorphous alloy three-dimensional wound core. This utility model uses a structure in which the clamping frame mechanism and the pad mechanism cooperate to fix the position of the amorphous alloy three-dimensional wound core and the coil windings. The fixing method is stable, and the amorphous alloy three-dimensional wound core is suspended as a whole, avoiding direct transmission of vibration energy to the oil tank, which can reduce noise. Furthermore, this utility model also includes a vibration damping mechanism, a first sound-absorbing component, and a second sound-absorbing component, which can further reduce noise. This utility model is suitable for use as basic equipment for power transmission and distribution.

The application discloses a mass spectrum combined characterization qualitative and quantitative method and system of unified hidden state, relates to the cross field of analytical chemistry, bioinformatics and artificial intelligence data processing, the method obtains original data and instrument / method metadata containing LC-MS / MS, encodes to form a condition vector and is used for conditional modulation, constructs wave encoder and particle encoder, respectively Tokenizes continuous chromatographic signal and discrete fragment peak set into wave encoder and particle encoder to obtain wave representation and particle representation, realizes cross-modal interaction through wave-particle fusion module, forms unified hidden state or object-level unified hidden state set, adopts two-stage training of self-supervised pre-training and task fine-tuning, and applies conditional quantitative operator and qualitative operator to unified hidden state or object-level unified hidden state set in the inference stage, and parallelly outputs quantitative results and identification score / probability, and is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scene.

The utility model discloses an electric rice cooker, including the pot body with inner pot and the pot cover with metal inner cover, the inner pot is equipped with the first sealing surface, the metal inner cover is equipped with the second sealing surface, the first sealing surface and the second sealing surface are pasted and form the rigid sealing area of annular, still include the fan and the air duct with outside communication, the air duct is along the rigid sealing area circumferential arrangement, the fan is used to send the wind of outside into the air duct, to make the wind flow through the air duct and cool the rigid sealing area. The utility model discloses an electric rice cooker, the steam produced when cooking meets the rigid sealing area of low temperature and will become condensed water, and the condensed water will fill the gap between the metal inner cover and the inner pot and form water seal, which can effectively improve the sealing effect between the metal inner cover and the inner pot, thereby effectively avoiding air leakage.

The utility model provides a kind of rehabilitation nursing vibration recuperation bed, including chassis, a layer of rubber pad is laid above the chassis, multiple independent bed boards are laid above the rubber pad;The space for installing vibration plate is equipped in the chassis, vibrator is installed in the central position above vibration plate, there is a side plate in each side above vibration plate, there is an arc plate for supporting cross bar above side plate;Through hole for transmission plate is passed through is formed in one side of cross bar, embedding slot for transmission plate is embedded in the other side of cross bar, opening for transmission plate is also formed in the inside of each bed board, and is passed through bed board inside opening to be connected by transmission plate to pass into the through hole and embedding slot of cross bar.This structure design makes it possible to selectively connect certain bed board with vibration plate, so as to accurately transmit vibration to specific bed board.

A clutch device having a reverse input blocking function includes a driving shaft that rotates by power from a driving unit, an output shaft that transmits power transmitted from the driving shaft to an object to be driven, and a variable speed transmission unit that is engaged to the driving shaft and the output shaft, transmits power from the driving shaft to the output shaft, and blocks reverse power input from the output shaft. When reverse power is input due to an external force applied to the object to be driven, the clutch device blocks power transmission, thereby preventing driving unit failure and damage caused by reverse power transmission to the driving unit due to the external force.

The utility model discloses a kind of vegetable oil fuel range, including the range shell with upper end opening, the bottom of range shell inner wall is provided with oil box, the upper end of oil box outer wall is provided with fixed ring, the upper end of oil box outer wall is provided with oil pipe, multiple communication pipes are communicated in the edge of oil pipe, oil core is cooperatively arranged in each communication pipe, heat insulation assembly is cooperatively arranged in the upper side of oil box in range shell, the upper end of heat insulation assembly outer wall is formed combustion chamber by being set down concave, space between heat insulation assembly and oil box forms a wind cooling layer, the upper end of heat insulation assembly is cooperatively arranged with the adjusting assembly for adjusting its firepower size.The utility model can make it normal use without through oil pump to transport fuel, and the size of firepower can also be adjusted when using, and the situation that fuel splashes due to pressure change also does not appear in use process, suitable for food and beverage place use.

Embodiments of the present application provide a method, device and equipment for determining blood pressure based on PPG signal and storage medium, and relate to the field of medical treatment. The method comprises: obtaining a target signal sequence, inputting the target signal sequence into a pre-trained neural network model, and obtaining a blood pressure value sequence corresponding to the target signal sequence output by the neural network model; wherein the neural network model is trained with a sample signal sequence as a training sample and with a sample blood pressure value sequence corresponding to the sample signal sequence as a training label; at least one sample PPG signal sequence at a time in the sample signal sequence is a distorted sequence meeting a distortion condition, and a sample blood pressure value corresponding to each distorted sequence is related to a sample blood pressure value corresponding to a first PPG signal sequence at a previous time of the corresponding distorted sequence. The embodiments of the present application can ensure that the prediction effect of long-time continuous blood pressure prediction is in a good state.

The utility model discloses a microcomputer control electro -hydraulic pressure testing machine belongs to pressure testing machine technical field, including liquid accumulator, the liquid accumulator includes condensing board and liquid storage tank body, and liquid storage tank body is passed through oil pipe and is linked with hydraulic pump, and the driving wheel of hydraulic pump is fixedly connected with motor. The utility model can realize no longer install radiator or external forced cooling device, avoided the problem of high energy consumption, complex structure, reduced equipment maintenance difficulty, and the liquid storage tank no longer only relied on single oil cavity, avoided the overall oil temperature rising situation caused by the mixing of cold and hot oil in the liquid storage tank, controlled the temperature of hydraulic oil in the liquid storage tank at the suitable temperature, prevented the high oil temperature heat of hydraulic oil from being transferred to the hydraulic pump, so reduced the high temperature shutdown phenomenon of hydraulic pump, and the overall efficiency was guaranteed.

The application discloses a high-temperature thermal conductivity testing system and testing method for medium thermal conductive materials, and belongs to the technical field of measurement, which comprises: a sample area to be tested; a heating area and a detection area are oppositely arranged at two ends of the sample area to be tested; a first heat insulation layer is arranged around the outside of the sample area to be tested; one end of the first heat insulation layer is connected with the heating area, the other end is provided with a second heat insulation layer, and the second heat insulation layer is connected with the detection area. The first heat insulation layer is arranged to slow down the transverse heat dissipation of the sample area to be tested, on the one hand, the temperature change gradient of each area near the heating area and the detection area is reduced, and the sample area to be tested is heated more uniformly; on the other hand, the temperature difference between the inner side and the outer side of the first heat insulation layer is reduced by the uniform temperature layer, the transverse temperature loss of the sample area to be tested is reduced, and the problems that it is difficult to obtain the thermal conductivity data of the medium thermal conductive material at high temperature and the measurement data is inaccurate are solved.

The utility model discloses a kind of automotive indoor touch top light, including installation box, the inside of the installation box is equipped with connecting mechanism, the outer surface of the installation box is equipped with control mechanism, the outer surface of the installation box is fixedly connected with adjusting mechanism, the outer surface of the installation box is equipped with illuminating lamp, the outer surface of the installation box is equipped with threading hole.This device utilizes the knob set, can rotate rotating lever, to drive second gear to rotate, utilize the second gear set, can drive first gear to rotate, in turn drive threaded rod to rotate, realize to make threaded cylinder to translate, utilize the adjusting piece set, the resistance output of resistance rod can be adjusted, to realize the resistance of illuminating lamp is adjusted, realize the brightness of illuminating lamp is controlled, solved because directly through switch or button, the light is opened or closed, to cause the problem that the brightness of illuminating lamp cannot be adjusted.

The application discloses a high-heat-conducting flame-retardant cable and particularly relates to the technical field of flame-retardant cables, which comprises electric cores, flame-retardant parts, heat-conducting parts and adjusting parts, the electric cores are arranged in a circumferential array, the flame-retardant parts are arranged between two adjacent electric cores, and the two ends of each flame-retardant part are provided with receiving grooves; the heat-conducting part is arranged between two adjacent flame-retardant parts; and the adjusting part is arranged between the electric cores and can make the electric cores close to or away from the center of the array through elastic deformation. When the cable dissipates heat, the heat-conducting part is directly contacted with external air through the heat-conducting part and the heat-conducting groove, and the external airflow can blow the heat-conducting part when passing through the flow guide hole group, so that the heat dissipation efficiency is further improved, and the problem that the heat conduction capacity of the sheath after adding the flame retardant is usually poor and is not conducive to the heat conduction of the internal heat is solved.

A kind of high-temperature-resistant heat-insulating fiber felt connecting structure, heat-insulating layer body includes left piece and right piece, the upper end of the left piece is equipped with the upper sewing piece of integral structure, the lower end of the right piece is equipped with the lower sewing piece of integral structure, the upper sewing piece is sewn with lower sewing piece by sewing structure and point glue structure and is equipped with on the heat-insulating layer body, the integral structure;The sewing structure includes: first sewing edge, second sewing edge and third sewing edge, the first sewing edge, second sewing edge are both double-thread needle method sewing, the third sewing edge double-thread needle method sewing is sewn back, the needle hole of the first sewing edge, second sewing edge and third sewing edge is filled with point glue structure.In sewing, first sew middle positioning, then sew two sides.The design not only interface smooth, good integrity, seam efficiency approaches 100%, significantly improves the overall mechanical properties of large, heterotypic size fiber felt, and needle hole is carried out point glue treatment to avoid heat transfer through needle hole, improve mechanical properties.

The invention belongs to the technical field of welding, and provides an automobile pressure sensor machining device which comprises a machining table, a rotary clamping mechanism, a protection assembly and a welding mechanism are installed on the machining table, and the rotary clamping mechanism is used for clamping a sensor base body and driving the sensor base body to rotate; the welding mechanism is installed on the side of the rotary clamping mechanism, the output end of the welding mechanism is located over the rotary clamping mechanism, the welding mechanism is used for welding a membrane to a sensor base body, and the protection assembly is installed on the side of the rotary clamping mechanism. The protection assembly can protect the membrane in a mode of covering the membrane. According to the invention, the protection assembly is adopted to protect the diaphragm, heat generated by welding can be prevented from being transferred to other parts of the diaphragm, or when an accident occurs, the output end of the welding mechanism is prevented from deviating to other parts of the diaphragm, the welding quality is improved, and the quality of the sensor is improved.

The utility model discloses an anti -interference body weight scale based on single point stress structure, including scale bottom plate and scale panel, the scale bottom plate and scale panel form the installation inner chamber after the enclosure, and the four corner position of scale bottom plate is equipped with the installation round frame, and its bottom surface has opened the through groove of the diameter less than self, is equipped with a scale angle in every installation round frame, and the scale angle contains the coaxial connection of first round plate and second round plate, and first round plate is placed in the installation round frame, and second round plate penetrates through the through groove, the top center of first round plate is equipped with the contact iron block, still be equipped with the clamping seat of being located in the scale angle just above in the installation round frame, and the clamping seat bottom is equipped with the sensor, and the sensor bottom center is fixed with the hemisphere lug, and the hemisphere lug and contact iron block abut. The utility model discloses through change original sensor's stress point, and the pressure of scale surface will converge on a point of sensor, and the stress is more focused, and the inaccuracy of weighing data is guaranteed to overcome the uneven ground, the shaking of the person of weighing or the difference of ground hardness difference etc.

The invention discloses a workpiece and a speed reducer, and relates to the technical field of workpiece machining. The convex part and the concave part are arranged on the hole wall of the corresponding position of the center hole of the workpiece, when the clamp clamps the workpiece, the tensioning part is arranged in the center hole in a penetrating mode, the side wall of the tensioning part abuts against the convex part, and the effect of limiting the position of the workpiece can be achieved. Due to the fact that the protruding part is located in the first area of the center hole, under the partition of the through hole, pressure generated by the clamp is difficult to transmit to the outer wall face of the workpiece when the tensioning part abuts against the protruding part. And when the tensioning part and the concave part are arranged at intervals, the pressure generated by the clamp can be prevented from being transmitted to the workpiece through the concave part, so that the fluctuation uniformity of the outer wall surface when the cycloidal gear is clamped is ensured, and the machining precision of the workpiece is improved.

The utility model discloses a kind of hydrogen and oxygen equipment of electrolytic water preparation, apply in electrolytic water equipment field, including electrolytic tank, the sealing cover is arranged on the electrolytic tank, the inside of the electrolytic tank is provided with anode and cathode, the power connector is arranged on the anode and the cathode, the gathering mechanism is arranged on the anode and cathode, the centrifugal purification mechanism is arranged on the gathering mechanism by setting electrolytic tank, sealing cover, anode, cathode, power connector, gathering mechanism and centrifugal purification mechanism, when using, sealing cover can be sealed to the electrolytic tank Processing, avoid the gas produced to escape, then add electrolytic liquid into electrolytic tank, the power connector on cathode and anode is connected with external power supply respectively, electrolysis is carried out to electrolytic water, cathode produces hydrogen, anode produces oxygen, then the gas produced can be collected by gathering mechanism, directly transmitted into centrifugal purification mechanism, remove impurities in gas by centrifugal purification mechanism.

A hermetic compressor is disclosed. The vibration damping member of the hermetic compressor is disposed inside or outside the housing. A plurality of rigid parts can be arranged circumferentially around a vibrating body at predetermined intervals and are integrated with the vibrating body. A mass part can be formed in a ring shape to connect the plurality of rigid parts to each other, or formed in an arc shape so that each of the plurality of rigid parts is independently connected to the mass part. Therefore, even with a drive motor that functions as a rotary motor, the vibration damping member can absorb the torsional vibrations caused by it, thereby effectively reducing the vibration noise of the compressor.

The present application relates to a kind of permanent magnet synchronous motor cogging torque detection device, including test rack, the top of test rack is provided with fixator, the inside of fixator is installed and is provided with motor to be measured, the top of test rack is also provided with torque sensor, and the input end of torque sensor is installed and is provided with centering installation shaft between the output end of test motor, centering installation shaft includes installation shaft base body, the outside of both ends of installation shaft is installed and is provided with leveling piece, the inside of installation shaft is provided with driving piece and clamping piece, the both ends of installation shaft base body are provided with compensating piece, compensating piece includes extension ring, extension ring is fixedly installed in the both ends of installation shaft base body, the inside of extension ring is slidably connected with magnetic attraction piece, the inside of magnetic attraction piece is provided with cross slot, and the inside of magnetic attraction piece is slidably connected with multiple metal tablets.The present application realizes the complete isolation of additional torque of full cycle, avoids interference signal transmission to torque sensor, so as to improve the cogging torque detection data accuracy and waveform reduction degree.

The utility model discloses a kind of building structures of high-rise building arch type conversion layer, including the load-bearing wall of relative distribution, the upper floor and lower floor fixed between load-bearing wall;Arch rib is arranged between the upper floor and lower floor, and tuned mass damper is arranged between the top of arch rib and the upper floor;Symmetrically fixed in the both ends of arch rib and with the support side plate of both sides load-bearing wall resistance, prestressed tension rod is fixedly connected between both sides support side plate;Tuned mass damper is designed between arch rib and upper floor, and the reverse vibration of tuned mass damper cancels structural vibration energy, mainly for controlling wind load or the resonance of high-rise structure caused by earthquake, when arch rib is compressed, vertical force is converted into lateral force, and prestressed tension rod can pull lateral force to cancel, avoid lateral force to pass to foundation, ensure the balance of entire system, under the cooperation of above structure, it is favorable to ensure the stability of conversion layer.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

This application discloses a unified latent state-based mass spectrometry joint characterization qualitative and quantitative method and system, involving the interdisciplinary fields of analytical chemistry, bioinformatics, and artificial intelligence data processing. The method acquires raw data from LC-MS / MS and instrument / method metadata, encodes it into conditional vectors, and uses them for conditional modulation. A wave encoder and a particle encoder are constructed, and continuous chromatographic signals and discrete fragment peak sets are tokenized and input into the wave encoder and particle encoder respectively to obtain wave and particle characterizations. Cross-modal interaction is achieved through a wave-particle fusion module to form a unified latent state or an object-level unified latent state set. A two-stage training process of self-supervised pre-training and task fine-tuning is employed. During the inference stage, conditional quantitative and qualitative operators are applied to the unified latent state or object-level unified latent state set, outputting quantitative results and identification scores / probabilities in parallel. This method is suitable for end-to-end qualitative and quantitative analysis in DDA / DIA scenarios.

Embodiments of the present application provide an information extraction method and device, applied in the field of artificial intelligence technology, comprising: obtaining a to-be-recognized text, and constructing a word vector sequence of the to-be-recognized text; inputting the word vector sequence into a relation classification layer to obtain a target relation type contained in the to-be-recognized text; for each target relation type, determining at least one entity contained in the to-be-recognized text under the target relation type based on a type feature vector corresponding to the target relation type and the word vector sequence; and constructing a triple information corresponding to the target relation type based on the target relation type and the at least one entity. Through the relation classification layer, at least one target relation type contained in the to-be-recognized text is extracted, and the entity contained in the to-be-recognized text under the target relation type is determined, thereby solving the problem that a relation model cannot be constructed for an incomplete sentence structure, and avoiding errors generated by an entity extraction model from being passed to a relation extraction model, so as to improve information extraction accuracy.

The utility model relates to the technical field of environmental protection carton, specifically is a kind of ventilative environmental protection carton, including main box, convex side plate and box cover, the both sides of main box are provided with convex side plate, the both sides of convex side plate are provided with ventilative mouth place, the ventilative mouth place is clamped with clamping cover and clamping cover is laid with ventilative hole, the top of main box is provided with box cover, main box, convex side plate and box cover are all composed of waterproof membrane, corrugated board, heat insulation layer and thickening corrugated board;The inside of corrugated board is adhered with elastic gasket by environmental protection glue at equal distance and the side of elastic gasket is provided with integrally-formed sleeve joint block, the side of elastic gasket is provided with thickening corrugated board;Carton environmental protection is high, increase the ventilative effect in carton, it is convenient to better store fresh meat food under high temperature weather, and it is convenient to pack and transport live poultry.