506results about How to "Increase exercise" patented technology

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength polypropylene composite material for a filter plate and a preparation method of the high-strength polypropylene composite material. The preparation method of the polypropylene composite material comprises the following steps: uniformly mixing polypropylene, polyimide, maleic anhydride grafted polypropylene, nylon 6, a maleic anhydride grafted styrene-butadiene-styrene copolymer, aminated calcium carbonate, modified glass fiber, an antioxidant and a lubricant according to a mass ratio of 100: (12-18): (2-5): (1-2): (3-5): (3-7): (6-10): (0.2-0.5): (0.1-0.3), carrying out melt blending, extruding, cooling, granulating, and carrying out extrusion molding to obtain the polypropylene composite material. Through the synergistic effect of the nano calcium carbonate and the glass fibers, the mechanical property of polypropylene is improved, all the raw materials are crosslinked to form a uniform network structure, more energy is absorbed when a matrix is impacted by external force, and it is guaranteed that the filter pressing plate is not damaged when deforming under the high-temperature and high-pressure conditions; the obtained polypropylene composite material is high in strength, good in heat resistance and excellent in comprehensive performance.

The invention relates to an aerosol single-droplet monitoring device and method in a real atmosphere, belongs to the field of aerosol single-droplet detection, and solves the problem that an existing aerosol single-droplet monitoring device cannot monitor the property change of a single droplet in the real atmosphere or the detection error of the saturated vapor pressure of the single droplet is large. A gas path system of the device comprises a real atmosphere gas path system, the real atmosphere gas path system is communicated with a single-droplet optical tweezers suspension device, a microdroplet pumping system is communicated with the single-droplet suspension system, and a light beam coupling system is respectively communicated with the single-droplet optical tweezers suspension device, a signal detection system and a microdroplet detection device; the real atmosphere gas path system comprises a first gas path and a second gas path, the first gas path and the second gas path are both communicated with real atmosphere, the first gas path and the second gas path are respectively communicated with the single-droplet optical tweezers suspension device, the second gas path is provided with a gas pumping device, and the gas pumping device is a vacuum pump or an air compressor; the device can monitor the property change of the single liquid drop in the real atmosphere.

The invention discloses a wrapping yarn machine winding device tension self-adaption mechanism which comprises outer shells used for supporting on the two sides, a winding part connected between the outer shells on the two sides and used for winding wrapping yarn is arranged between the outer shells on the two sides, and the upper side and the lower side of the winding part can expand outwards along with the diameter change of the wound wrapping yarn; the transmission part is also connected between the outer shells on the two sides, and the transmission part is used for supporting the covering yarn; wherein the transmission parts are in a shape of a plurality of groups of shafts, and are distributed in a vertically staggered manner. According to the invention, by increasing the diameter of the rotating shaft and the coated yarn, the extrusion shaft moves outwards along the longitudinal plate, the transmission shaft is far away from other transmission shafts, the bending transmission degree of the coated yarn is changed, the diameter is increased, the linear speed is increased, the bending angle of the coated yarn is reduced, and the resistance is reduced, so that the tension of the coated yarn is relatively adjusted, and the coated yarn is prevented from being broken.

The invention belongs to the technical field of high polymer materials, and particularly discloses a cross-linked antistatic supercritical microcellular foaming material. Comprising the following raw materials in parts by weight: 80-100 parts of HIPS, 10-15 parts of thermoplastic elastomer, 5-10 parts of low-density polyethylene, 10-15 parts of organic multifunctional master batch, 5-10 parts of high-dispersion conductive functional filler, 5-10 parts of modified calcium sulfate whisker, 5-10 parts of grafted modified talcum powder master batch, 1-5 parts of cross-linking agent, 1-5 parts of lubricant and 1-5 parts of antioxidant. The invention provides a cross-linked antistatic supercritical microcellular foaming material as well as a preparation method and application thereof. The cross-linked antistatic HIPS supercritical microcellular foaming material which is excellent in comprehensive performance and can be applied to multiple fields is prepared.

The respiratory training device comprises a frame, a fixing base, an observation cavity and a measurement cavity, the fixing base, the observation cavity and the measurement cavity are arranged on the frame, an air suction pipe is placed on the fixing base, the lower portion of the observation cavity communicates with the lower portion of the measurement cavity through an air channel, the air channel is connected with an air suction port, and the air suction port is in a hollow cylinder shape and can be connected with the air suction pipe; an adjusting cylinder is arranged on the other side, corresponding to the position of the air suction port, of the frame, an adjusting inner core is rotationally connected into the adjusting cylinder, adjusting holes are formed in the adjusting inner core and the adjusting cylinder, and the air suction port is communicated with the observation cavity and the measurement cavity through the air channel and the adjusting holes. The adjusting cylinder and the adjusting inner core are arranged at the air suction port, the adjusting holes are formed in the adjusting cylinder and the adjusting inner core, the air suction port communicates with the observation cavity and the measurement cavity through the adjusting holes, the overlapping range of the adjusting holes in the adjusting cylinder can be controlled by rotating the angle of the adjusting inner core and the adjusting cylinder, then the ventilation capacity is adjusted, and the intensity of respiratory training is controlled; the operation is convenient.

The invention discloses a switched reluctance motor for a chef machine, and particularly relates to the technical field of switched reluctance motors, the switched reluctance motor comprises a protective shell, the protective shell is provided with a regulation and control assembly, the regulation and control assembly comprises a base plate arranged in the protective shell, the top of the base plate is provided with a stator, and the bottom of the stator is rotatably connected with an extension rod; the extension rod is installed on the base plate through a bolt. According to the invention, by continuously changing the current in the stator, the reinforced rotor rod and the connecting shaft can continuously move, so that the reinforced magnetism-increasing sheets can be close to the connecting disc, and then the reinforced magnetism-increasing sheets extend between the two adjacent induction magnetic blocks, so that the magnetic field can be enhanced by the induction magnetic blocks and the reinforced magnetism-increasing sheets, and the voltage is kept unchanged; the waveform width, the peak value and the effective value of the current are changed, so that the output torque is influenced, and the torque of the rotor rod and the connecting shaft is further enhanced.

The utility model relates to a flywheel assembly and an exercise bicycle. The flywheel assembly comprises a flywheel body, a driving shaft and a transmission switching mechanism. A one-way bearing is embedded in an axis opening of the flywheel body; the driving shaft is arranged in the axis opening of the flywheel body in a penetrating mode, and when the driving shaft rotates in the first direction, the flywheel body is driven by the one-way bearing to rotate in the first direction. The transmission switching mechanism comprises a fixed gear and a movable gear, and the fixed gear is fixedly connected with the flywheel body; the movable gear is controlled by the driving shaft to rotate and is further controlled by external force to move in the axial direction of the driving shaft so that the movable gear can be switched between the meshed state and the separated state relative to the fixed gear. When the driving shaft rotates in the second direction, under the condition that the movable gear is meshed with the fixed gear, the driving shaft drives the flywheel body to rotate in the second direction through the movable gear and the fixed gear which are meshed with each other; and under the condition that the movable gear is separated from the fixed gear, the driving shaft freely rotates in the second direction relative to the flywheel body.

The invention relates to the technical field of PET plastic recycling, and discloses a PET plastic bottle recycling granulator which comprises a base, the upper end of the base is connected with a label tearing box through two sets of connecting arms, a spiral label tearing device is arranged in the label tearing box in a penetrating mode, and a feeding opening is formed in the right position of the upper end face of the label tearing box and penetrates through the spiral label tearing device downwards. According to the PET plastic bottle recycling and granulating machine, the constant-speed motor is started, the positioning shaft is driven to rotate after speed reduction of the speed reducer, the chain is driven to move annularly, the multiple sets of movable label suction devices on the chain are driven to move annularly, and when the movable label suction devices move along with the lower half portion, located in the protective cover, of the chain, the movable label suction devices are driven to move annularly. A material suction short pipe of the movable type label suction device penetrates through the strip-shaped guide groove, moves in the spiral label tearing device and keeps synchronous with the movement of the plastic bottle, a material suction fan of the movable type label suction device is started, the material suction short pipe is used for sucking the fallen labels in time, the fallen labels are discharged through a material guide opening, tracking type material suction is achieved, and the material suction effect is improved.

The invention provides a preparation method of green and environment-friendly regenerated rubber, and belongs to the field of regenerated rubber manufacturing. The method comprises the following steps: putting waste rubber powder and a biomass material into a first stirring and mixing device, discharging after the material is heated to a set temperature, feeding the material into a second stirring and mixing device, stirring under the condition of introducing an inert gas atmosphere, and discharging after the material is heated to a set temperature; feeding the materials into a first double-screw extruder through a continuous closed conveying device, controlling the temperature of the screw extruder to be 100-160 DEG C, and completing a depolymerization reaction within 3-7 minutes; and feeding into a second screw extruder through a continuous closed conveying device, controlling the temperature of the second screw extruder to be 5-25 DEG C, cooling for 2-5 minutes, removing impurities through a filtering device, and carrying out thin-passing and sheet discharging through a double-roller refiner, so as to obtain the green and environment-friendly regenerated rubber material. According to the method disclosed by the invention, the rubber regenerant and the softening agent which are derived from biomass are used as regeneration auxiliaries, the depolymerization regeneration of the waste rubber is realized under a low-temperature condition, and the regeneration process is low in energy consumption and small in environmental pollution.

The invention provides an artificial algae crust-based desertification land restoration method, which comprises the following steps: screening algae species, carrying out artificial culture and resistance exercise on the screened species to obtain enough available biomass, treating the obtained biomass, adding auxiliary materials to prepare an artificial algae crust inoculum, and carrying out artificial algae crust-based desertification land restoration on the artificial algae crust inoculum. And inoculating the inoculum to a to-be-repaired area, and maintaining until algae crust is formed. According to the method, the artificial algae crust with similar species structure, function and physical characteristics as the algae crust naturally formed in the field is rapidly formed through human intervention, and can automatically grow and develop after colonization, so that the restoration treatment of the desertification land is realized; the method effectively solves the problems of microbial death of the inoculum caused by too strong stress generated by a field environment, low colonization success rate caused by instability of an inoculation area, and difficult growth and expansion of the inoculum caused by rapid dehydration of the inoculum due to poor water retention capacity of the desertification land, and is an environment-friendly, sustainable and efficient novel desertification organism treatment method.

The invention discloses a high-toughness biodegradable material for film blowing forming and a preparation method of the high-toughness biodegradable material, and belongs to the technical field of biodegradable materials. Comprising 50-60 parts of polyethylene, 8-16 parts of poly (butylene adipate / terephthalate), 6-12 parts of polylactic acid, 4-9 parts of self-made nano silicon dioxide modified lignin, 3-8 parts of modified nano calcium carbonate, 1-2 parts of a plasticizer, 3-5 parts of a compatilizer, 0.2-1 part of a lubricant, 0.3-1.5 parts of carbon black and 0.2-0.8 part of an antioxidant. According to the material for film blowing forming, the self-made nano silicon dioxide modified lignin and the modified nano calcium carbonate are compounded for use, so that the material has ultrahigh toughness, and by adding the poly (butylene adipate-co-terephthalate), the polylactic acid and the lignin, the positive effect on the biodegradability of the material is achieved; therefore, a relatively good biodegradation effect is achieved.

The utility model discloses a small household fitness treadmill, which belongs to the technical field of fitness treadmills and comprises a bottom plate component, a treading component is arranged at the upper end of the bottom plate component, a pedal is arranged at the upper end of the treading component, the bottom plate component comprises a fixed base, and a plurality of anti-slip gaskets are fixedly connected to the lower end of the fixed base. According to the technical scheme, all parts of a treading assembly are transversely arranged, the gravity center of the machine is lower, the structure is more stable, more stable supporting can be provided for a user, the risk of falling down is reduced, space is saved, and the arrangement mode is generally more compact, small in occupied area and convenient to use. The device is convenient to place in an environment with limited space, suitable for being used by multiple persons at the same time, easy to operate, easy to master and use by a user due to the simple structure and operation mode, balanced in exercise, uniform in stimulation to leg muscles in the exercise process and beneficial to comprehensive exercise of the leg muscles.

The invention relates to a method for eliminating residual stress in additive manufacturing of nickel-based superalloy, and relates to the technical field of additive manufacturing materials. According to the main technical scheme, stress relief treatment is carried out in the mode that continuous pulse current treatment is applied to the additive manufacturing nickel-based superalloy, so that at least part of residual stress in the additive manufacturing nickel-based superalloy is eliminated, and the additive manufacturing nickel-based superalloy subjected to stress relief treatment is obtained. According to the method, the residual stress in the additive manufacturing nickel-based superalloy can be effectively reduced. According to the method, the internal structure state of the original alloy is not changed, meanwhile, the method is low in treatment temperature, short in treatment time, more efficient and more energy-saving, and the requirement for green and sustainable development of the current industry is met.

The present invention relates to the technical field of titanium tube processing, and in particular to a device for boring inner diameters of titanium tubes, comprising a workbench, a clamping seat is provided on the workbench, a clamping mechanism, a rotating mechanism, and a cooling mechanism are provided on the clamping seat, the clamping mechanism is used to clamp the titanium tube, the rotating mechanism is used to rotate the clamping mechanism, and the cooling mechanism is used to inject coolant into the titanium tube; a tool holder and a driving mechanism are also provided on the workbench, a boring bar is detachably connected to the tool holder, a boring tool for processing the inside of the titanium tube is detachably connected to the boring bar, the tool holder is slidably connected to the workbench and driven by the driving mechanism, and the driving mechanism drives the tool holder to slide toward the clamping seat along the length direction of the workbench. The tool holder only needs to drive the boring bar to perform linear motion to process the inside of the titanium tube, and during processing, it only needs to move the tool holder along the titanium tube, so the processing accuracy and processing efficiency are high.

The present invention discloses a drying waste gas treatment device for fluffy decorative fabrics, including a transmission pipe and a condenser, wherein the condenser is used to cover the transmission pipe, and a water inlet pipe is integrally provided on the outer side of the condenser near the lower end, and a water outlet pipe is provided on the inner side of the transmission pipe. The present invention provides a condenser on the transmission pipe and covers the local transmission pipe, so that water vapor forms water to avoid being transmitted with the waste gas, thereby reducing the complexity of waste gas treatment; the inner inclined heat exchange tube can rotate under the action of a servo motor, and most of the water vapor passing through is liquefied into water. The water vapor may contain impurities or salts, which may be deposited to form scale when the surface of the inner inclined heat exchange tube is cooled. Rotating the inner inclined heat exchange tube helps to reduce this scaling phenomenon and helps to evenly distribute the water vapor outside the inner inclined heat exchange tube, thereby ensuring that the entire heat exchange tube can effectively perform heat exchange and liquefaction processes.

The invention discloses a fish fry rearing device facilitating water changing and cleaning in the technical field of fish fry rearing, and the fish fry rearing device comprises a driving mechanism which is arranged at the bottom of an outer box assembly; the cleaning mechanism is arranged in an inner cavity of the inner box assembly and connected with the driving mechanism, the cleaning mechanism makes contact with the filter screen, and the driving mechanism drives the cleaning mechanism to rotate to clean the inner cavity of the inner box assembly and the filter screen. The cleaning mechanism is driven by the driving mechanism to rotate to carry out water changing cleaning on the interior of the inner box assembly, water changing cleaning can be carried out in the fry breeding process, fry does not need to be transferred, water changing cleaning can be conveniently and rapidly carried out while the labor intensity of breeding personnel is reduced, and the working efficiency is improved.

The utility model relates to the field of rehabilitation training, in particular to a postpartum recovery training device for gynaecology and obstetrics. According to an existing postpartum recovery training device, a puerpera exerts force incorrectly, the effective rehabilitation exercise effect is difficult to achieve, adjustment is difficult to conduct according to the condition of the puerpera, and the rehabilitation exercise effect is poor. A postpartum recovery training device for gynaecology and obstetrics comprises a bottom frame, a sliding rail, a sliding block and the like. A sliding rail is fixedly connected to the upper portion of the bottom frame, two sliding blocks are connected to the sliding rail in a sliding mode, the two sliding blocks are symmetrically arranged, and bearing plates are fixedly connected to the tops of the two sliding blocks. When the two legs of the puerpera clamp inwards, the two bearing plates, the two sliding blocks, the two push plates and the two extrusion blocks can be driven to move in the direction close to each other until the two bearing plates are in contact, so that when the puerpera moves the legs, the legs need to apply force inwards to clamp the legs, the pelvic floor muscles of the puerpera are exercised more effectively, and a better rehabilitation effect is achieved.

The invention discloses a KAUST-7-NH2 / PIM-1 mixed matrix membrane as well as a preparation method and application of the KAUST-7-NH2 / PIM-1 mixed matrix membrane. The mixed matrix membrane comprises a self-polymerized microporous polymer (PIM-1) and amino modified KAUST-7 (KAUST-7-NH2) filled in the matrix membrane. The KAUST-7-NH2 is filled into the PIM-1 solution to prepare a membrane casting solution, and the membrane casting solution is dried by a solution evaporation method to form the membrane. According to the present invention, the compatibility between KAUST-7-NH2 and PIM-1 is improved by introducing the amino group, the mechanical property of the membrane is significantly improved, the exposure of a large amount of CO2 adsorption active sites is promoted, the preferential adsorption of CO2 is enhanced, the CO2 permeability of the mixed matrix membrane is enhanced, and the CO2 / CH4 selectivity (PCO2 gt, 3219 Barrer, alphaCO2 / CH4 gt, 32.1) is improved; the preparation method provided by the invention is simple and easy to operate, and the prepared KAUST-7-NH2 / PIM-1 mixed matrix membrane has higher gas separation performance on the basis of excellent aging resistance and plasticizing resistance, and can be applied to efficient separation of CO2 / CH4.

The utility model relates to the technical field of container breeding, and discloses a container quantitative feeder which comprises a box body and a material storage tank arranged at the top of the box body, a water inlet is formed in the bottom of the box body, a material distributing device is communicated with the lower portion of the material storage tank and comprises a driving device and a frame body, the frame body is communicated with the material storage tank, and the driving device is connected with the driving device. A rotatable material distributing disc is arranged in the frame body, the driving device drives the material distributing disc to rotate, a plurality of grooves are evenly formed in the edge of the material distributing disc, the edge of the material distributing disc except the groove parts is tightly attached to the frame body, a discharging port is formed in the bottom of the frame body, and the width of the discharging port is larger than or equal to the width of the grooves. By means of the design, the feeding amount can be controlled by controlling the rotating angle or the number of turns of the material distributing disc, quantitative feeding is achieved, fishes can be in a reverse flow state in the feeding process, and the fish feeding device conforms to the life habits of the fishes.

The invention discloses a multifunctional water-pushing flow-making pond recirculating aquaculture system and a using method.The multifunctional water-pushing flow-making pond recirculating aquaculture system comprises a purification tank and a control device, a water inlet and a water outlet are formed in the tank wall of the purification tank, and the water inlet is connected with a water pumping pipeline provided with a circulating water pump; the water inlet end of the water pumping pipeline extends into the culture pond; the purification tank is connected with an insertion type nano aeration device, and a foam discharging device is arranged at the top of the purification tank; the water outlet is connected with a water outlet pipeline, the water outlet pipeline is provided with a water-pushing flow-making aeration oxygenation device located above the culture pond, and the position height of the water-pushing flow-making aeration oxygenation device is lower than the position height of the purification tank. Various water treatment devices are integrated into the purification tank in a centralized mode through reasonable layout, the overall space distribution size of the breeding system is reduced, water pushing and flow making for aeration and oxygenation can be automatically achieved through the gravity effect, the breeding cost is greatly reduced, and the oxygenation effect and the medicine throwing diffusivity can be improved through water pushing and flow making.

The present invention discloses a method for cultivating activated sludge for efficiently treating coking wastewater. The present invention adopts bio-fortified strains and rice husk biochar to prepare a microbial immobilization carrier, and the carrier is added to a simulated coking wastewater activated sludge treatment system to form bio-fortified activated sludge, which is successively added to simulated coking wastewater with gradually increasing phenol concentration, simulated coking wastewater with gradually increasing nitrogen-containing heterocyclic compound concentration, and simulated coking wastewater with gradually increasing polycyclic aromatic hydrocarbon concentration for three times of acclimation to obtain activated sludge after the third acclimation, and the activated sludge is applied to treat simulated coking wastewater. The activated sludge after the third acclimation of the present invention can simultaneously and efficiently degrade multiple target pollutants in the simulated coking wastewater.

The invention relates to the technical field of pesticide residue detection, in particular to a rice surface pesticide residue detection device which comprises a detection box, a mixing air bag, a first connector, a second connector and a gas-liquid conveying device. The mixing air bag is provided with a material opening fixed to the installation opening in a sealed mode. The first joint is connected with the detection box and is used for guiding gas into the detection box or guiding the gas out of the detection box; the second joint is arranged on the mixing air bag in a penetrating manner and is far away from the material opening; a filter hole and a first valve are arranged on the second joint; the gas-liquid conveying device is connected with the second connector and used for inputting gas or liquid with certain pressure into the mixed gas bag. The inner surface of the mixing air bag, the interior of the second connector and a path, used for conveying a detection reagent, of the gas-liquid conveying device can be washed clean, the filtering holes of the second connector can be cleaned, and meanwhile a user can conveniently observe whether the inner surface of the mixing air bag is cleaned clean or not.

The utility model relates to the field of knitted fabric processing, in particular to a knitted fabric dyeing device which comprises a mixing barrel, a stirring barrel, a stirring assembly, a conveying roller and an aeration pipe, the stirring barrel is arranged on the left side of the mixing barrel, the bottom of the stirring barrel is communicated with the bottom of the mixing barrel, the stirring assembly is arranged on the stirring barrel, and the conveying roller is arranged on the stirring assembly. A filter screen is arranged in the stirring barrel, the upper end of the stirring barrel is connected with the upper end of the mixing barrel through a guide pipe, the lower end of the guide pipe is located above the filter screen, a water pump is arranged on the guide pipe, a plurality of groups of conveying rollers are alternately arranged left and right and vertically at intervals, air channels are formed in the conveying rollers, and air inlet pipes are arranged at the ends of the air channels. The aeration pipes are connected to one side of the conveying roller at intervals and communicate with the cavity channel, and a plurality of air outlet holes are annularly formed in the aeration pipes in an array mode, so that the mixing uniformity of the dye is improved, and the dyeing efficiency of the knitted fabric is improved.

The invention relates to the technical field of polyolefin film materials, in particular to a cold drawing sleeve packaging film and a preparation method thereof. The invention discloses a cold drawing sleeve packaging film which is composed of an inner layer, a middle layer and an outer layer. The inner layer is prepared from the following raw materials in percentage by weight: 30 to 60 percent of metallocene linear low density polyethylene (mLLDPE) and 40 to 70 percent of linear low density polyethylene (LLDPE); the middle layer is prepared from the following raw materials in percentage by weight: 20 to 70 percent of metallocene linear low density polyethylene (mLLDPE), 10 to 30 percent of linear low density polyethylene (LLDPE) and 1 to 40 percent of pre-dispersion component; the outer layer is prepared from the following raw materials in percentage by weight: 10 to 60 percent of metallocene linear low density polyethylene (mLLDPE), 10 to 40 percent of linear low density polyethylene (LLDPE) and 1 to 40 percent of pre-dispersed component; the pre-dispersed component is prepared from an original ecological powder material of metallocene linear low density polyethylene (mLLDPE), an original ecological powder material of non-entanglement ultra-high molecular weight polyethylene (UHMWPE) and a low-melting-point dispersing agent through high-speed mixing and pre-mixing; the low-melting-point dispersing agent is polyethylene wax and polyethylene glycol.

The invention belongs to the technical field of lithium metal batteries, and discloses a laser modified composite lithium metal battery negative electrode material and a preparation method thereof.The preparation method comprises the steps that various weighed chloride salts are mixed in ethyl alcohol respectively, and an ethyl alcohol precursor solution with the metal element concentration being 0.01 mol / L is finally obtained through mixing; the foamy copper is subjected to ultrasonic cleaning with acetone, absolute ethyl alcohol and ultrapure water in sequence and is subjected to vacuum drying for 4-8 h at the room temperature for standby application; the prepared precursor solution is directly dropped into foamy copper with the loading capacity of 1-2 mL / cm <-2 >, and then the foamy copper is transferred into a vacuum oven and dried for 8-12 h at the room temperature; and carrying out liquid-phase laser scanning ablation on the dried foamy copper precursor to prepare the L-CF (at) HEAs sample. The liquid-phase laser technology is adopted for laser irradiation, the method is simple and good in repeatable operability, a large amount of time can be saved, the manufacturing efficiency of the lithium metal battery is improved, and the method plays an important role in promoting the development of the lithium metal battery.

The utility model belongs to the technical field of exercise devices, and particularly relates to a body exercise device which comprises two fixed bottom plates, supporting rods are fixedly arranged on the upper side walls of the two fixed bottom plates, a cross rod is fixedly arranged at the upper ends of the two supporting rods together, a cavity is formed in the cross rod, and the upper ends of the two supporting rods are fixedly connected with the cross rod. Symmetrical vertical plates are longitudinally and slidably arranged in the cavity, sleeves are fixedly arranged on the lower side walls of the two vertical plates, and a pull rod is transversely and fixedly arranged between the two sleeves jointly, the height of the pull rod can be adjusted according to the height of an exerciser, exercise is facilitated, and the exercise efficiency is improved. The fixing mechanism can be fixed to the waist of an exerciser through cooperation of the fixing mechanism and the auxiliary mechanism, the needed balance weight is adjusted according to the pull-up capacity of the exerciser, pull-up can be completed independently even under the condition that no person assists, exercise is easier, and the effect is better.

The invention discloses a multi-channel synchronous control temperature field balance control system and a temperature field air fluid balance control algorithm, the system comprises a computer, a high temperature test box and a PLC controller, the PLC controller is connected with and controls a servo cross-flow fan blade module through an EtherCAT communication technology, and the PLC controller is connected with the servo cross-flow fan blade module based on the temperature field air fluid balance control algorithm. And precise and balanced control of air fluid in the test box is realized. Compared with the prior art, the multi-channel synchronous control temperature field equalization control system and algorithm have the advantages that the uniformity of the temperature field can be effectively controlled, the control precision of the temperature field is high, and the response speed is high.

The utility model provides a tape releasing mechanism with a pure mechanical tension control structure, which uses a mechanical structure to control constant tension, and comprises a bottom plate, a baffle plate, and a friction wheel, a friction tape, an adjusting rod, an insulating tape reel, a swing rod and a tension component which are positioned between the bottom plate and the baffle plate, the tension assembly comprises a screw rod, an adjusting nut and a first spring. One end of the friction belt is fixed between the bottom plate and the baffle, and the other end of the friction belt is fixed with the screw rod; along with gradual reduction of the diameter of the insulating tape reel, one end of the swing rod gets close to the insulating tape reel, and the other end of the swing rod drives the adjusting rod to rotate towards the direction of the insulating tape reel, so that the compression amount of the spring I is reduced, the friction tape is loosened, the holding friction torque of the friction tape to the insulating tape reel is gradually reduced, and constant tension of the tape wrapping reel is realized. When the adjusting rod moves, only one end of the friction belt is driven to move, the movement process is simple, and the spring deformation can be conveniently and effectively calculated during calculation, so that the pulling force borne by the friction belt is controlled.