63results about How to "Strong ventilation" patented technology

The invention discloses a method for growing watermelons. The method includes the steps of processing seeds and accelerating germination, sowing and raising seedlings, applying base fertilizer on the whole land, transplanting the seedlings, performing field management, harvesting and the like. The method for growing watermelons is easy to operate, convenient to manage, good in growth vigor of watermelons, high in disease resistance, uniform in result nature and high in yield, the yield per mu can reach 4000 kg to 5000 kg, the watermelons are large, good in quality, high in sugar content, bright in flesh color, delicate in flesh and high in water content and commodity value, and therefore the method has great significance for increasing income of melon farmers.

The invention relates to the field of transport logistics, in particular to a variable-capacity compressible easily unloading transport vehicle and a transport method. The transport vehicle comprises a carriage and is characterized in that two horizontal chain wheel shafts are arranged on the carriage wall, the ends of the chain wheel shafts are rotatably mounted on a carriage body through bearings, holes are formed in the carriage body, the bearings are arranged in the holes, the chain wheel shafts penetrate the bearings, a belt is mounted on the chain wheel shafts after the chain wheel shafts penetrate the bearings and connected with a power output shaft of a power system by the aid of power, chain wheels are mounted on the chain wheel shafts, a chain is arranged on the vertically distributed chain wheels, a lifting plate is welded outside the chain and can rise and fall inside the carriage, and the power system is a forward and reversely rotating motor and a speed reducer of the motor. The transport vehicle has the advantages that internal capacity can be distributed, the transport vehicle is high in operability, automation degree and ventilation or gas orientation capability, various cargoes can be simultaneously transported and can be automatically unloaded, and separation intervals are formed.

The invention relates to a method for comprehensive utilization of edible fungus residues. The method comprises the steps of 1, conducting steam treatment on waste bacteria sticks after impurity removal and smashing, so that pretreated fungus residues are obtained; 2, adjusting the water content and pH of the pretreated fungus residues, and building a heap for solid aerobic fermentation, so that primarily fermented fungus residues are obtained; 3, mixing the primarily fermented fungus residues with water in proportion, conducting aerated fermentation constantly, conducting filtration, and drying and smashing filter residues to obtain vegetable cultivation base fertilizer, wherein filtrate serves as an edible fungus growth promotion and yield increase agent. Mycoprotein, polysaccharide, oligosaccharide, enzymes, microorganisms and other bioactivators rich in fungus residues are fully utilized, mycoprotein, cellulose and lignin are further degraded into substances capable of being absorbed by edible fungi easily, the edible fungus growth promotion and yield increase agent which contains various physiological activators and nutrients and can promote edible fungus growth is obtained through extraction, and filter residues are used for preparing a vegetable seedling culture medium.

The invention belongs to the technical field of agriculture, particularly relates to a towel gourd planting method and provides a perfect towel gourd planting technology which can increase the survival rate of towel gourd seedlings and the yield of towel gourds. The high-yield towel gourd planting method comprises the following steps: 1, selection of improved varieties: varieties that are suitable for being cultivated in summer, namely, the varieties insensitive to short days, are selected; 2, seedling cultivation and transplantation: summer towel gourds are not suitable for direct seeding, and field parcels with good drainage are selected for seedling cultivation and transplantation; 3, selection of the field parcels: the towel gourds are fertilizer-favorite, so that sunward loam or clay loam field parcels with fertile and moisture soil, high organic matter content and high moisture and fertility retaining capacity are selected for planting; 4, land preparation and planting; 5, field management: during continuous raining and water accumulation on bed surfaces, all that is needed is to press blades instead of stems by clods, vines can be also fixed for rooting, and rot due to stem pressing is prevented; 6, plant regulation: after planting survival, a pergola is erected timely for vine leading, vines are bound timely after climbing onto the pergola, and vine leading is performed in a zigzag shape.

The invention relates to a multifunctional bed, in particular to a multifunctional bed for orthopedic patients. The multifunctional bed for the orthopedic patients aims at achieving the technical purposes that feet can be more conveniently fixed, and high ventilation is achieved. In order to achieve the technical purposes, the multifunctional bed for the orthopedic patients comprises a bed body, supporting frames, a supporting plate, fixing frames, a fixing plate, first sliding rails, first sliding blocks, a connecting frame, a first air cylinder, supporting rods, a mechanism case, a first rack and the like. The supporting frames are symmetrically arranged on the left side and the right side of the bottom of the bed body front and back, the supporting plate is arranged on the left side ofthe top of the bed body, the fixing frames are symmetrically arranged on the right side of the top of the bed body front and back, and the fixing plate is arranged on the tops of the fixing frames onthe front side and the back side. The effects that the feet can be more conveniently fixed, and high ventilation is achieved are achieved, people can start an electric reel to release a pull rope, theconnecting frame moves downwards along with the pull rope, people can start a first air cylinder to do stretching operation, and arc-shaped rods on the front side and the back side move oppositely.

The invention relates to the technical field of crop planting, particularly a celery planting method. The method particularly comprises the steps of soil preparation, construction of seedbed, manufacturing of reagent-mixed soil, seed selection, seed soaking and pregermination, seed sowing, thinning, insect killing, field planting, watering, fertilizing, and harvesting. According to the celery planting method provided by the invention, the soil conditioner added in the soil preparation process can effectively enhance the adaptability of plants to soil and promote the healthy and fast growth of plants. The reagent / sandy soil mixing ratio and the composition and proportion of the reagent can enhance the germination rate of seeds. The celery grown by the celery planting method has the advantages of high germination rate and high yield. The method is scientific and reasonable, is simple and easy to operate, and has the advantages of short culture period, high operability, great market potential and wide prospects.

The invention relates to the technical field of constructional engineering, in particular to an energy absorption core layer, a sandwich structure and a preparation method. The energy absorption corelayer comprises a plurality of continuous folding units which are integrally formed, each folding unit comprises a first panel, a second panel, a third panel and a fourth panel which are folded in a crossed mode, the included angle between the fourth panel and the horizontal plane is a dihedral angle, and the dihedral angle ranges from 49 degrees to 52 degrees. An upper plate is fixedly arranged on the energy absorption core layer in a sticking mode, and a lower plate is fixedly arranged under the energy absorption core layer in a sticking mode. According to the energy absorption core layer, the mechanical property of the energy absorption core layer can be improved, cracks of the energy absorption core layer caused by one-time forming are avoided through the preparation method of the sandwich structure, and the energy absorption capacity and the impact resistance are improved.

The invention discloses an integrated-type LED (light-emitting diode) light source heat radiating device and a preparation method thereof. The integrated-type heat radiating device adopts a combined structure of a base and a heat radiating body, wherein the combined structure is a nested structure or a dual-layer overlapped structure; the nested structure is that the base is located at an inner ring, and the heat radiating body is located at an outer ring; the dual-layer overlapped structure is that the heat radiating body is arranged on the back surface of the periphery of the base; the base is prepared from two powders with different particle sizes and silicon dioxide sol; the heat radiating body is prepared from two powders with different particle sizes, epoxy resin and a pore-forming agent, and is internally provided with heat radiating micro holes formed by the pore-forming agent; and the powder is at least one of silicon carbide, ceramic fibers and ceramic particles. The integrated-type LED light source heat radiating device adopts the integrated heat radiating structure, and is high in heat radiating efficiency, simple in structure, small in volume, light in weight and low in cost, and the preparation method is easy to implement.

The invention discloses an intelligent fresh air control system, which is characterized in that a fresh air filter unit and an air purifier are connected with a PM2.5 and TVOC detection module and the CPU of a wireless communication module for controlling, and when the detected TOVC parameter is higher than a limit value, the CPU starts the fresh air filter unit to convey fresh air into a room; when the detected PM 2.5 parameter is high than a limit value, the CPU starts the air purifier to purifying air in the room; when the wireless communication module receives a network command of a mobile terminal or a cloud, performing information configuration on the CPU and controlling the fresh air filtering and conveying device and the air purifier by the CPU. Compared with the prior art, the intelligent fresh air control system is strong in ventilation capacity, good in purifying effect and low in noise, greatly meet demand of people on high quality of air in the room, and is simple in structure and low in energy consumption and costs.

The invention relates to a mandatory diffuse type cooling ventilating pipeline system for a large-scale frozen earth roadbed and a construction method thereof. The traditional roadbed ventilating pipeline system is limited in temperature reduction effect and is adverse to the stability of frozen earth by increasing the temperature of a roadbed by introducing hot air in summer. The mandatory diffuse type cooling ventilating pipeline system comprises a plurality of horizontal ventilating pipes and a plurality of longitudinal ventilating pipes, which are horizontally and longitudinally crossed and mutually communicated, wherein the longitudinal ventilating pipes positioned on the end parts of two sides are respectively connected with an air inlet and air outlets, which protrude out of the horizontal direction of the roadbed; one air inlet is formed, and an air suction equipment and a temperature controlled switch are arranged on the air inlet; and a plurality of the air outlets are form in the front and back sides along a longitudinal direction. According to the mandatory diffuse type cooling ventilating pipeline system, cold air is introduced from the air suction equipment arranged in the air inlet, circulated through the longitudinal ventilating pipes and the horizontal ventilating pipes and then emitted from the air outlets, and the air is subjected to heat exchange with the roadbed in a pipe internal-circulation process, so that the effect of reducing the temperature of the roadbed is achieved. The mandatory diffuse type cooling ventilating pipeline system disclosed by the invention can only be started when external air temperature is lower than the temperature of the roadbed to prevent the entrance of the hot air in summer and is controllable in air quantity and obvious in cooling effect.

The invention relates to the technical field of osmanthus fragrans planting, in particular to a method for planting osmanthus fragrans. Through pit digging treatment in the osmanthus fragrans planting process and the limitation of the size of a pit, after an osmanthus fragrans seedling is planted in the pit, the goal of freely stretching the root system can be achieved, the comfort of the osmanthus fragrans is improved after the osmanthus fragrans is planted in the pit, the quick growth of the osmanthus fragrans is promoted, the absorptivity of the osmanthus fragrans root system is improved, and the survival rate in the osmanthus fragrans planting process is guaranteed. By the combination of treatment of the irrigation and planting steps, a sponge structural layer is formed in the osmanthus fragrans planting pit and can provide enough nutrient for the osmanthus fragrans root system part and have nutrient conveying capability; that is, the ventilation performance of the root system part is improved, gas molecules can freely move in the pit, enough nitrogen is provided for the osmanthus fragrans root system part, the absorption by the root is promoted, the quick growth of the osmanthus fragrans is quickened, and the osmanthus fragrans survival rate is improved.

The invention belongs to the technical field of agricultural planting. A method for planting camellia oil trees comprises the first step of cutting collection, the second step of cutting seedling raising, the third step of transplanting, the fourth step of deep fertilizing, the fifth step of foliar fertilizer applying and the sixth step of trunk determination and shaping. According to the method,high-quality branches are selected as cuttings, the cuttings are treated withh a rooting solution, and the rooting of the cuttings is promoted; special nutrient soil is used for seedling raising, so that the quality of seedlings can be effectively improved; a proper amount of decomposed farmyard manure and a slow-release insecticide are applied to the transplanting soil, so that nutrients requiredby the growth of the camellia oil trees are provided, and plant diseases and insect pests are reduced; a special fertilizer for the camellia oil trees is applied deeply, so that all nutrients required by the growth of the camellia oil trees are provided; the camellia oil trees grow vigorously by applying a foliar fertilizer; the illumination intensity of the camellia oil trees is enhanced throughtrunk determination and shaping, accumulation of tea saponin and flavone of the camellia oil trees is promoted, the yield and the oil content of tea fruits are increased, the quality of the tea fruits is improved, and the economic benefit is further improved.

An efficient metal cutting and dedusting device comprises an air duct, a round suction opening, a plurality of sets of ventilation door mechanisms and a trapezoid frame, wherein the air duct is arranged in the center of the bottom of a cutting platform, the round suction opening is formed in one end of the air duct and connected with a main dedusting machine through a pipeline, the ventilation door mechanisms are arranged on the air duct in the length direction of the air duct at equal intervals, and the trapezoid frame is arranged beside the air duct, is in contactable connection with the ventilation door mechanisms and is used for pushing the ventilation door mechanisms to act; and the trapezoid frame is fixedly connected to a cutting truss, moves along with the cutting truss, and can only push one or two sets of ventilation door mechanisms to be opened under driving of the cutting truss when passing one position every time. When the efficient metal cutting and dedusting device conducts cutting, only a ventilation door corresponding to the lower portion of a cutting gun head is shifted, and accordingly, a small air outlet is formed; and in this way, under the condition that the air volume of dedusting equipment is fixed, the large air suction force and high air suction efficiency are ensured, and thus, the dust collecting effect is obvious. In addition, the efficient metal cutting and dedusting device is simple in structure, easy to manufacture, low in cost, safe and reliable in usage, and suitable for dedusting equipment for large format cutting.

The invention relates to a heater, in particular to an electrically heated bathroom warm air heater. The bathroom warm air heater includes a front cover, a base, a motor, a wind wheel, a waterproof heating element and a wind wheel shell. The wind wheel is installed in the wind wheel shell, and the motor is installed on the right side of the wind wheel shell. The drive shaft is connected to the motor, and the other end is connected to the upper bearing of the wind wheel casing; the base is equipped with an air duct composed of a left side plate, a right side plate, an upper plate and a lower plate, and the inner end of the air duct is close to the wind wheel , to facilitate the wind wheel to blow the wind into the air duct, the air duct is provided with a waterproof heating element, the left end of the waterproof heating element is located in the fixing hole on the left side plate, and the right end is located in the fixing hole on the right side plate. The invention has the advantages of fast temperature rise, good heating effect, strong air exchange rate, waterproof, long service life, safe use, novel style and beautiful appearance.

The invention provides a cultivation method for improving the soybean yield potential, and relates to the field of soybean cultivation. A narrow-row close planting technology is adopted as a seeding manner, two rows of soybeans are planted on a 32 cm ridge, the soybeans are alternately planted, the distance between adjacent seed holes of the soybeans is about 17 cm, soybean seedlings have enough growth space, soybean seedling leaf overlapping is avoided in an alternate seeding manner, light and air can enter the bottoms of the seedlings, the light transmission and ventilation are high, and theyield is obviously increased; an alternate sowing machine sowing manner is adopted, the seed holes can be evenly distributed in an alternate manner through two sets of boot-type sowing heads front and back, and the distance between the seed holes is guaranteed; and two sets of boot-type seeding plowshares are connected through a locking adjusting mechanism, so that the front-back distance and theleft-right distance between the two sets of seeding plowshares can be changed and can be adjusted according to seeding requirements. Compared with a special seeder, the adaptability is high.

The invention relates to an intelligent ventilating type cutter collection box which comprises a collection box body (1), wherein cutter insertion slots are formed in the collection box body (1); cutter insertion notches (2) corresponding to the cutter insertion slots are formed in the upper surface of the collection box body (1); the intelligent ventilating type cutter collection box further comprises a control module (5), and a power supply, a humidity sensor (6) and at least two fans (3) which are respectively connected with the control module (5); the respective fans (3) are respectively arranged in cavities (4) formed in the two sides in the collection box body (1), and realize ventilating operation for cutters in the cutter insertion slots by combing the humidity sensor (6) and aiming at real-time detection of the cutter insertion slots based on hollow communicating structures between the cavities (4) and the cutter insertion slots as well as between the cavities (4) and the exterior of the collection box body (1), so that an air-drying effect on water on the surfaces of the cutters can be achieved; furthermore, a ventilating effect can be achieved on the cutter insertion slots, and cleanness and sanitation in the cutter insertion slots are kept all the time, so that cleanness and sanitation of the cutters are effectively guaranteed.

The invention belongs to the technical field of bacterial culture, in particular to a convenient and controllable bacterial incubator for clinical laboratory, comprising a box body, wherein the top ofthe box body is fixedly connected with a servo motor, one side of the servo motor is connected with an air exchange assembly, an alarm is installed on the left side of the servo motor, a thermometeris installed above the inner wall of the box body, the right side of the box body is movably connected with the box door, and a control panel is installed on the outer wall of the box door. As the ventilation assembly, the alarms, the thermometers, the control panel, the exhaust fans, the universal wheels and the temperature control assemblies are set, the invention has the advantage of being simple in structure and use, being easy to move, being time-saving and labor-saving when the bacteria are placed, being uniform in placement, having wide placement range, being able to control the temperature in the box, being convenient for bacterial growth, being able to alarm promptly when the temperature in the box is high, bacteria in the box for a long time to effectively prevent oxygen deficiency, being strong in ventilation effect, improving the survival rate of bacteria, and achieving the best use effect.

The invention discloses polyester knitted fabric and a production method of the polyester knitted fabric. The polyester knitted fabric at least comprises cabled filaments formed by silk filaments and polyester filaments, the polyester filaments are normal-pressure disperse dyeable polyester filaments, and the binary acid component of copolyester forming the polyester filaments comprises over 90% of terephthalic acid structural units by molar weight; the dihydric alcohol component comprises 1-30 % of aliphatic dihydric alcohol structure units by molar weight, wherein the aliphatic dihydric alcohol structure units have side chains, the carbon number of the aliphatic dihydric alcohol structure units is smaller than six, and the copolyester further comprises polyethylene glycol structure units; the knitted fabric comprises 5-95% of the silk filaments by weight. The knitted fabric is dyeable at normal temperature and pressure, it is unnecessary to preprocess silk, knitting and dyeing equipment is wide in application range, the product is diverse in pattern and color, the surface of the knitted fabric can show noble gloss of the silk, and the drapability is excellent; the knitted fabric can further be interweaved with other fibers according to functional requirements to improve product performance.

The invention discloses a flower pot capable of collecting rainwater and storing water and a planting method adopting the flower pot capable of collecting rainwater and storing water. By the adoption of the flower pot, enough water can be stored by the flower pot, a plant in the flower pot does not lack water for a long time after watering is conducted once, and water can seep slowly in a water planting mode to be utilized by the plant. In addition, by the adoption of the planting method, operation is easy, the efficiency is high and the labor intensity is low. The flower pot capable of collecting rainwater and storing water comprises a flower pot body (1). At least one annular surrounding wall (2) is arranged in the flower pot body (1). A water storage area (3) is defined by the inner wall of the flower pot body (1) and the outer side of the annular surrounding wall (2). A planting area (4) is defined by the inner side of the annular surrounding wall (2). A soil isolating net (5) is arranged above the water storage area (3). A water discharging hole (6) communicated with the planting area (4) is formed in the bottom of the flower pot body (1). The flower pot capable of collecting rainwater and storing water is applied to the technical field of planting of potted plants.

The invention provides an umbrella-shaped floor clothes hanger. The umbrella-shaped floor clothes hanger comprises a clothes airing ring, a main rod and supporting legs. The clothes airing ring is installed at the upper end of the main rod through supporting arms, a multi-head connector is fixed to the upper end of the main rod, and the other ends of the supporting arms are hinged to the multi-head connector. Supporting rods are hinged below the supporting arms, and the lower ends of the supporting rods are hinged to a first sliding sleeve installed on the main rod. The large daylighting degree is acquired in limited space through a round airing main frame, ventilation is high by the adoption of the hanging and airing mode, and the better airing effect is acquired. The clothes airing ring is expanded to be fixed to the upper end of the main rod, the clothes airing ring and the main rod are rotationally connected through a bearing, in the wind blowing process, the clothes airing ring can properly rotate, clothes are not squeezed together, and airing efficiency is improved.

The invention relates to a cascading brassiere with soft texture, great elasticity, strong ventilation, comfort and beauty, which belongs to a medical instrument. The brassiere comprises a healthy side cup and an affected side cup. A healthy side strip is connected with the healthy side cup, and an affected side strip is connected with the affected side cup. A rear connecting strip is connected with the outer sides of the healthy side cup and the affected side cup. The healthy side strip and the affected side strip are connected with the rear connecting strip. The affected side cup is filled with a fake breast, and the fake breast comprises a plurality of overlapped sponge pads, and the sponge pads are close to the bosom. The adjacent sponge pads are attached through a nylon buckle, and all the sponge pads become larger from the outer side to the inner side one by one. The healthy side cup and the affected side cup are independent of each other and connected through a front connecting buckle. A healthy side pectoral muscles pad is connected with the lower side of the healthy side cup, an affected side pectoral muscle pad is connected with the lower side of the affected side cup, and an additional pectoral muscle sponge pad is connected with the outside of the affected side cup. The cascading brassiere is suitable for a patient who has a mastectomy due to breast cancer, and has great elasticity and strong ventilation.

The invention discloses an environment-friendly modifier for improving saline-alkali soil and a preparation method of the environment-friendly modifier, and belongs to the technical field of soil improvement. The improver is prepared from the following raw materials: wormcast, fish bone meal, Kanuma soil, akadama soil, turf, urea, potassium sulfate, citric acid and compound microorganisms. The preparation method comprises the following steps: fermenting wormcast and fishbone dust under the action of compound microorganisms to obtain a fermentation product; mixing the Kanuma soil, the akadama soil and the turf, and crushing to obtain a mixture; and sequentially adding the mixture, urea, potassium sulfate and citric acid into the fermentation product, and uniformly stirring to obtain the environment-friendly modifier for improving the saline-alkali soil. When the soil conditioner is applied to saline-alkali soil, the organic matter content and the moisture content of the soil can be remarkably increased, the volume weight of the soil can be reduced, the pH value of the soil can be adjusted, the salt content can be reduced, and the soil conditioner has wide application prospects.

The invention relates to an intelligent large scattered material storage system for coping with strong wind and an operating method. The intelligent large scattered material storage system comprises amajor steel structure frame, a large grid protective layer, a ventilating dust suppression layer, an anemorumbometer and an active and passive protective system. The operating method comprises the steps that under the severe strong wind condition, automatic detecting and early warning can be conducted, and stored materials are subjected to spraying and mist jetting; meanwhile, when the wind speedreaches a certain value, the ventilating dust suppression layer located on the inner side face of the major steel structure frame is actively separated from an emergency separating device at the top;under the situation that a detecting and early warning system loses efficacy or an emergency separating device automatic control device on a certain inner side face of the major steel structure frameloses efficacy, when the wind speed reaches a certain value, the emergency separating device can be mechanically disconnected, so that the ventilating dust suppression layer located on the inner sideface of the main body steel structure frame downwards moves along a slideway on a vertical bearing beam; and meanwhile, spraying and mist jetting are conducted on the stored materials, and finally, the purposes of material protection and prevention of damage to the major steel structure frame can be achieved.

The invention discloses a stropharia rugosoannulata liquid strain incubator. The stropharia rugosoannulata liquid strain incubator is characterized by comprising a liquid stock culture tank (1), a temperature control magnetic turntable (2) and a combined stirrer (3), wherein the liquid stock culture tank (1) is arranged above the temperature control magnetic turntable (2), stock culture liquid containing liquid mother strains is loaded in the liquid stock culture tank (1), and the combined stirrer (3) is placed in the stock culture liquid; and the temperature control magnetic turntable (2) rotates to drive the combined stirrer (3) to rotate, and non-contact stirring and heating of the stock culture liquid are achieved. When the incubator is used for strain culture, compared with solid stock culture, the stock culture time can be shortened by 40-60 days, and the spawn running time of cultivated species can be shortened by 30-50 days.

The invention relates to the technical field of vegetable cultivation, and discloses a seeding room capable of realizing natural ventilation and favorable lighting for vegetable cultivation. The seeding room comprises a case. A top cover is fixedly arranged on the top part of the case, and is arranged in a triangular shape; water guiding pools are fixedly arranged on the bottom part of an inner cavity of the base; placement racks are arranged in inner frames of the water guiding pools; seeding pools are fixedly arranged on the placement racks; and clapboards are fixedly arranged in the middle parts of the seeding pools. The seeding room capable of realizing natural ventilation and favorable lighting for vegetable cultivation provided by the invention has the advantages that a circulating ventilation function is realized, the ventilation performance is good, seeds or seedlings can breathe conveniently, the phenomenon that seed development or seedling growth is affected due to higher indoor temperature is prevented, the survival rate is improved, the seeding quality is improved, the design is ingenious and reasonable, the cost is saved, the resources are saved, natural resources such as sunlight and natural wind are reasonably utilized, the practicability is high, the sunlight can irradiate conveniently, the light transmission is good, the resources are further saved, the efficiency of photosynthesis is improved, plants can healthily grow conveniently, green and environmental protection are realized, the quality of the seedlings is improved, and the like.

The invention discloses an improved garbage dustpan, which is composed of a dustpan body and a handle, wherein the dustpan body is composed of a base plate, sidewalls and a rear wall, and the handle is fixedly arranged on the rear wall; a water filtering hole is arranged on the rear wall of the dustpan body; on the inner side of the dustpan body, the rear wall is provided with a baffle plate by which the water filtering hole is opened and is closed; and the baffle plate and the handle are connected by virtue of a control piece and the baffle plate is controlled to rotate. According to the improved garbage dustpan disclosed by the invention, a certain included angle is formed between the dustpan body and ground by virtue of a bump which is arranged on the lower end face of the base plate, so that garbage can be cleaned more thoroughly and rapidly; and the dustpan can be used for cleaning both dry garbage and wet garbage; when the dustpan is used for cleaning the wet garbage, water in the dustpan body is discharged timely, so that the garbage is prevented from becoming mildew and rotten in the dustpan body and a ventilation effect inside the dustpan body is enhanced; the garbage dustpan is quite strong in practicability, and is convenient and simple to use; and the garbage dustpan is low in manufacturing cost, high in practicability and is convenient to use and popularize.

The invention provides a preparation method of a bike saddle, and belongs to the technical field of bike accessories. The saddle is composed of a separated front saddle body and two rear saddle bodies, the interiors of the front saddle body and the rear saddle bodies are hollow cavities, the top surfaces of the hollow cavities are provided with through holes, and a bottom plate is transversely arranged between the two side ends of the bottom surface of each hollow cavity; a guiding column is fixedly connected to each bottom plate, and springs are wound among the guiding columns; a connecting plate is arranged between the rear saddle bodies, and an insertion pipe connected to a vertical pipe at the lower portion of a main saddle body is arranged on the connecting plate. The bike saddle prepared according to the method is great in ventilation performance, and the discomfort caused when heat between the butts and the bike saddle cannot be quickly dissipated after a bike is ridden for a long time can be eliminated, so that the preparation method of the bike saddle is particularly suitable for application in summer.