131results about How to "Facilitate popularization of applications" patented technology

The invention relates to the technical field of head up display, in particular to a head up display system on an automobile. The head up display system comprises a projection light source, laminated glass and a transparent nanometer film, wherein the transparent nanometer film comprises at least one laminated structure of high reflective index layers / low reflective index layers which sediment sequentially outwards from the surface of an inner glass board; the projection light source is used for generating P polarized light, the P polarized light enters the transparent nanometer film, the reflectivity of the P polarized light from the transparent nanometer film is not lower than 5%, and the incident angle of the P polarized light ranges from 42 degrees to 72 degrees. Only a reflection image of the transparent nanometer film can be observed when a reflection image on the laminated glass is observed visually, a reflection image of an uncoated surface can be neglected, and therefore the ghosting problem of the reflection image of the head up display system is avoided; by means of the head up display system, application and popularization of an HUD technology are facilitated, the safe driving environment is provided, the overall structure and process are simple, the cost is low, and the head up display system is safe, durable, attractive and elegant.

The automatic backflush net filter has the basic structure including a filter casing with water inlet and water outlet, a filtering net set inside the casing, and a dirt draining pipe inside the filtering net. It features the filter casing separated into a filtering cavity a dirt draining cavity; and the dirt draining pipe penetrating the filtering cavity the dirt draining cavity and possessing one up and down moving water driven rotating body coaxial with the filtering net and homogeneously distributed dirt sucking tubes perpendicular to the filtering net. The dirt draining pipe has simultaneous radial rotation and axial shift to make the inside of the filtering net flushed successively without affecting the normal operation of the filter. The automatic backflush net filter has low manufacture and use cost and may be used widely in agriculture.

The invention relates to a method for crystallizing noncrystalline silicon by induction heating, wherein a strong alternating magnetic field is generated by using an induction coil, the alternating magnetic field approaches a noncrystalline silicon thin film covered with a metal film, the metal film can generate strong induction vortex current which is capable of rapidly heating the metal film so as to heat the noncrystalline silicon under the metal film, the conductivity of the heated noncrystalline silicon is enhanced, a vortex current can be also generated in the alternating magnetic field to further heat the alternating magnetic field per se, and therefore the noncrystalline silicon thin film is rapidly heated to reach the crystallization temperature, and the purpose of crystallization is achieved; and the method disclosed by the invention has the advantages of simple required equipment and low cost and is beneficial to popularization and application of polysilicon thin film transistors.

The invention provides a directional web data extraction method. The method comprises the following steps: carrying out source code grammatical rule analysis on web files by virtue of data structural features of web data to be extracted presented in the web files, and then constructing a data matching model with the data structural features through a regular expression; and carrying out data matching on source codes of the web files, extracting the web data which needs to be extracted from a part of the matched source codes, so that the problem of directional web data extraction is sloved. In the method, the regular expression is taken as a matching tool, which has strong operability for the technical personnel in the field and is beneficial to popularization and application of the method; and aiming at certain web data with more complicated data structural features and higher extraction difficulty, the invention further provides a directional extraction proposal for extracting the web data to be extracted step by step in a multistage location manner, thus having stronger adaptability and wide application range.

The invention belongs to an orofacial cleft external nose non-traumatic orthopedic treatment method in the medical field, and particularly relates to a digital preparation method for an orofacial cleft external nose deformity orthopedic appliance. The method is characterized by at least comprising the following steps: 1), acquiring three-dimensional data of the face of an orofacial cleft patient; 2) reconstructing a digital model for the face of the orofacial cleft patient in a three-dimensional manner; 3), constructing a digital model for the external nose orthopedic appliance according to a three-dimensional face model, wherein the digital model comprises a nose support C, a bridge body B and a base support A; 4), constructing solid models for the nose support C, the bridge B and the base support A through a rapid proto-typing technology according to the nose support, the bridge body and the base support made through the digital module; and 5) clinically applying the solid model of the external nose orthopedic appliance. According to the method, an existing pure manual operation is changed into computer controlled automatic processing, so that the manufacture precision of the appliance is guaranteed. Therefore, the standard and rapid individualized treatment method is provided for the orofacial cleft patient, and the clinical popularization and application of the technology can be promoted.

The invention discloses a digital experimental system based on a universal serial bus (USB) and a virtual instrument. The digital experimental system comprises a computer, a digital circuit experimental instrument module and an experimental chip, wherein the computer and the digital circuit experimental instrument module communicate through a USB port signal line and supply power to a digital circuit experimental instrument system and the experimental chip through a USB port of the computer; and a connecting line between the digital circuit experimental instrument module and the experimental chip is a standard C2 self-locking connector. By employing the digital experimental system based on the USB and the virtual instrument, a microcomputer serves as the basis, an integrated test platform is constructed, a conventional instrument is replaced, the requirements of electrician and electronic experiment teaching are met, the microcomputers can serve as computers for other computer course teaching, the equipment utilization rate is greatly improved, the resource sharing is realized, the experimental construction cost is reduced, and due to the introduction of the virtual instrument, an experimental teaching mode of combining the actual operation and the computer simulation is determined.

The invention relates to a design and production method of a precise bionic aesthetic prosthesis. The method comprises the following steps of (1) scanning teeth and adjacent teeth requiring aestheticrestoration; (2) designing the outer surface three-dimensional form of the aesthetic prosthesis by CAD software; printing the outer surface three-dimensional form into an aesthetic diagnosis model; (3) making a printing mold by using the model in the step (2); fully injecting tooth color temporary crown flowing resin; obtaining the aesthetic form identical to the CAD design; (4) after a patient confirms the aesthetic form, obtaining the outer surface data of the prosthesis through three-dimensional scanning; (5) performing three-dimensional scanning again after the quantitative tooth body preparation; obtaining the inner surface data of the prosthesis; (6) using the tooth or gum which is not subjected to tooth body preparation as a simultaneous region for registering the data on the innerand outer surfaces of the prosthesis onto the same coordinate system to complete the design; (7) performing 3D printing on the bionic color tooth preparation body substitutional form. The design and production method has the advantages that the individual bionic form and the color predictable performance of a porcelain aesthetic prosthesis can be improved; the precise realization of the existing aesthetic form is ensured.

The invention relates to a semiautomatic adjusting device of a surveying and mapping instrument tripod and the surveying and mapping instrument tripod. The device comprises a main adjusting slide buckle, a first secondary adjusting slide buckle and a second secondary adjusting slide buckle respectively and slidingly arranged on three support legs of the surveying and mapping instrument tripod, and scales arranged on the three support legs of the surveying and mapping instrument tripod, wherein a first transmission connecting rod and a second transmission connecting rod capable of being folded are respectively arranged between the main adjusting slide buckle and the first secondary adjusting slide buckle and the second secondary adjusting slide buckle. The device can largely simplify the centering and leveling adjustment process of the surveying and mapping instrument tripod; the centering and leveling processes are not implicated; the operation time and vigor in repeated adjustment are reduced; the operation is simple, convenient and fast; the centering and the leveling are quick and accurate in efficiency; the measuring efficiency is greatly improved; and the semiautomatic adjusting device is reasonable and simple in structure, is easy to be produced and machined, facilitates to upgrade and transform a traditional surveying and mapping instrument tripod, generates no waste, saves the cost, and is stronger in market competitive force.

The present invention relates to a pile hole construction method. Said method includes the following 9 drilling and slag-discharging processes: slurry circulation clash rotary grab drilling; slurry circulation impact rotary grab drilling; slurry circulation rotary grab driling; slurry circulation hydraulic force horizontal static pressure grab drilling; slurry circulation hydraulic force active feeding submerged grab drilling; impact rotary grab drilling; rotary grab drilling; slurry circulation rotary grab drilling; hydraulic force horizontal static pressure grab drilling; slurry circulation hydraulic force horizontal static pressure drilling; hydraulic force active feeding submerged yrab drilling and slurry icrculation hydaulic force active feeding submerged grab drilling. said invented various drilling methods and slag-discharge methods and their combination can be used for various strata, and have the advantages of quick hole-forming speed, small drilling resistance and small slurry pollution.

The invention relates to a multi-layer photographing method and photographing system for microscopic examination. The system comprises a rack, a stage, an objective lens group and a camera. The objective lens group comprises two or more objective lenses of different optical lengths and is rotatably mounted on the rack by switching the objective lenses. The stage and the camera are respectively mounted on the rack right under and right above the objective lens group. The stage is mounted on the rack in such a manner that the stage can be moved horizontally with the shooting position adjustable. A lens of the camera is combined with the different objective lenses subjected to rotational switching to focus on different levels of a mixed microscopic examination liquid in a counting pool of the stage. In this way, by changing the optical length of the objective lenses, multi-level objects in the counting pool are photographed, without any need of adjusting the stage; low machining precision is required, and the method is easy to achieve with high control accuracy; the detection speed and shooting clarity are greatly improved; the photographing system is simple in structure, long in service life, stable in performance, convenient for operation, and good for promotion and application.

The invention relates to a sample transfer device and a sample transfer method. The device comprises a sample stage for placing a sample; a sealing cover which comprises a cover body covering the sample table and provided with a vent hole; and an elastic sealing suction assembly, wherein the vent hole of the sealing cover is elastically covered, and when the elastic sealing suction assembly is moved away from the vent hole, the vent hole can be communicated with the suction channel. The device has a positive and negative pressure transfer mode, is suitable for different sample transfer requirements, can reduce cost by one order of magnitude, and is more beneficial to popularization and application; for a common air sensitive sample, the trouble that vacuumizing equipment and other equipment need to be independently arranged is omitted, the air sensitive sample can be directly kept in vacuum, and the novel device can achieve good atmospheric environment isolation in the transfer process.

The invention discloses long-optical-path enzyme-linked immunoassay for testing thyroid stimulating hormone and provides a kit of the method. The long-optical-path enzyme-linked immunoassay comprises the following test steps of: performing immune reaction, separating, developing, measuring and processing data. A long-optical-path flowing sample pool and an optical fiber spectrometer are adopted for measurement; the detection sensitivity is 0.015mIU / L by increasing a measuring optical path, adopting a low-background substrate solution as well as optimizing a component preparation method; and compared with the sensitivity of the conventional optimized enzyme-linked immunoassay in which the same antibody is used, the sensitivity is enhanced by four times. The test linear range is 0.05 to 20mIU / L. The immune reaction is performed in a wrapped tube, and the reaction mode is a dual antibody sandwich one-step method. The kit comprises an antibody coated tube, a serial calibrator, an enzyme marker, a condensed cleaning solution, the low-background substrate solution, a terminating solution and an end-product diluent. The method is high in sensitivity and proper in test range, and the requirement of clinical detection can be met; meanwhile, the kit has low manufacturing cost and is favorable to popularization and application.

The invention relates to a medical flat car provided with shock-proof structures. Each of four supporting legs of the flat car comprises an upper supporting leg connected with and fixed on the medical flat car and a lower supporting leg with a caster arranged at the lower end, the lower end of the upper supporting leg and the upper end of the lower supporting leg are connected, and one shock-proof structure is arranged between the lower end of the upper supporting leg and the upper end of the lower supporting leg. Thus, shocks produced when the medical flat car passes through uneven road surfaces can be effectively reduced, secondary injuries caused by transfer of patients by the medical flat car are avoided, and the medical flat car is stable and reliable to use, very high in safety, very simple and ingenious in structure, easy to produce and machine and capable of facilitating popularization and application to benefit the patients better and greatly guarantees rescue effects of the patients.

The invention discloses a preparation method for polyene phosphatidyl choline for injection. The preparation method comprises the following steps: dissolving with a proper solvent by taking soyabean lecithin as a raw material, performing elution twice with a ternary mixed solvent consisting of multi-halogenated hydrocarbon, low carbon alcohol and water through column chromatography, and drying to obtain a product polyene phosphatidyl choline. The product obtained by the preparation method disclosed by the invention is high in phosphatidylcholine content (98.0%-99.9%, HPLC (high performance liquid chromatography) process), low in impurity content (less than 1.0% of lysophosphatidyl choline, less than 0.5% of phosphatidyl inositol, less than 0.5% of phosphatidyl ethanolamine, less than 0.2% of free fatty acid and less than 0.2% of triglyceride), and low in oxidative index (an acid value lower than 0.5, a peroxide value lower than 1.0 and methoxy phenylamine value lower than 5.0), so that the product quality reaches the quality standards of polyene phosphatidyl choline for injection.

The invention discloses a biological chip time mulitiplex multi-fluorescence simultaneous detection method and apparatus. Its method has the following steps: several laser maser for exciting different fluorescent substances and corresponding reflection holographic optical filter are installed in scanner; after laser maser pulse modulation to laser maser, optical pulse collimation through separate collimation enters the same measuring optical circuit to excite in turn biological chip of several fluorescent substances which creates fluorescence signal with different phase; after being collected and focusing, entering photomultiplier through pinhole to be transformed into pulse electric signal which is fluorescence signal for diplex corresponding to fluorescence signal with different phase; releasing diplex of signal is realized by multiplying unit obtaining separate fluorescence signal exciting; each fluorescence signal is transformed through A / D, transferred to computer used to do two-dimensional scan to biological chip. The invention uses biological chip laser scanner and time mulitiplex method to realize detection of fluorescence signal and exciting to multi kind of fluorescent substances with only one receive system and once scan.

The invention discloses a preparing method of a silicon wafer used in a solar cell. At first refining metallurgical silicon is crushed, and visible impurity is removed, and then the silicon is chemically cleaned and thrown into a crystal bar (or ingot) growth furnace, and at the same time, gallium or gallium phosphide is added into the furnace, and the amount is 5 to 14ppma calculated according to the atomic concentration of gallium. After the crystal rod (or ingot) finishes growing, ingot sections processing measurement is operated, and then the needed silicon wafer can be obtained. The method of the invention can use refining metallurgical silicon for producing solar cells, and the method reduces the material cost and is beneficial to the popular application of silicon solar cells.

The invention relates to an adjustable-wavelength emitter (100) for a TWDM-PON. The adjustable-wavelength emitter comprises a multi-mode emitter (110) outputting an optical signal containing multiple longitudinal modes, an optical annular device (120) having a first port used for receiving the optical signal of the multi-mode emitter, a second port used for outputting the optical signal and a third port, and a first micro ring resonator (130) having a first input end used for receiving the optical signal from the second port, a first output end used for outputting a first component of a resonance portion of the optical signal and a second output end used for outputting a second component of the resonance portion of the optical signal, wherein the second output end is connected with the third port of the optical annular device (120).

The invention provides a multi-liner air energy water heater. The multi-liner air energy water heater comprises a heat pump system, a control device and a water tank. The water tank comprises a shell, more than two liners and a heat insulation layer, wherein the liners are arranged in the shell, the heat insulation layer is filled in the shell and wraps the liners, the liners are arranged in the shell and communicated by serial honeycomb ducts, and a heating coil is arranged at the lower end of the inside of each liner. Thus, the problem of water mixing of the water tank is solved, and the multi-liner air energy water heater is high in hot water usage rate and energy saving and stable in heating. Meanwhile, the liners are provided with electric auxiliary heating rods and the heating coils for heating synchronically, heating is fast, water temperature is uniform and stable, and the problem that an air energy water heater is slow in temperature rise in the cold region or cannot be used normally is solved. The liners molded by PPR (pentatricopeptide repeats) plastic materials are water-tight, rust-free and anti-corrosion. In addition, by the rectangular external-mounting water tank, the problem that a conventional barrel type water tank cannot be mounted externally and is large in occupation area is solved, a water-electricity isolation switch is arranged at a water outlet, and using safety is high.

The invention relates to a pallet type stereoscopic street parking lot with a charging device, comprising a parking pallet, a support, a mechanical arm, an actuating unit and a control device, wherein the parking pallet is connected with the mechanical arm, the mechanical arm comprises supporting arms arranged on two ends of the parking pallet, the actuating unit comprises a winch or a hydraulic mechanism, and the control device can enable the actuating unit to drive the supporting arms to swing along a rotation shaft so as to ascend or descend the parking pallet; and the parking lot is further provided with the charging device. Compared with the prior art, in the invention, the parking pallet is lifted in a jacking manner by adopting the supporting arm and the winch or hydraulic mechanism, the parking pallet is set to be a hollow border structure, so that the structure is simplified, the weight is lightened and the cost is decreased, and moreover, the parking pallet can be controlled to lift in a remote control mode so that convenience in use is achieved; and the charging device is additionally arranged and used for charging an electromobile during parking, so that the practicability is further improved, and the popularization and the application of the pallet type stereoscopic street parking lot provided by the invention and the electromobiles are facilitated.

The invention relates to a disposable multi-cavity laryngoscopic lens which comprises a lens main body, wherein the lens main body is of an arc shape, and a tongue depressor is arranged at the front end of the inner arc surface; a laryngoscope mounting cavity opening at the back end and a ventilation pipeline and a secretion discharge pipeline connecting the front and back ends are arranged in the lens main body; the ventilation pipeline and the secretion discharge pipeline are arranged in parallel below the laryngoscope mounting cavity and laid out in a shape of Chinese character 'Pin' and are parallel to each other; and an oxygen supply joint and a liquid suction joint are arranged at the back ends of the ventilation pipeline and the secretion discharge pipeline respectively. So, after the laryngeal is forced open and the disposable multi-cavity laryngoscopic lens is inserted, oxygen can be input into the airway of the patient through the ventilation pipeline while liquid in the mouth cavity is removed by suction through the secretion discharge pipeline. With powerful functions, the disposable multi-cavity laryngoscopic lens avoids repeated pulling / inserting of an oxygen pipe and a liquid suction pipe in a traditional structure and has the advantages of convenience, flexibility and quickness in operation, high rescue efficiency, good effect, simple structure, easiness in production and processing, low processing cost and remarkably strong market competitiveness and facilitates market promotion, popularization and application.

The invention provides an information coding method and a reading device of a network vending machine. Network ordering information is coded into a strip block image; a photodiode is taken as the reading device of the network vending machine; and a confirmation process of input trading information is finished by flashing a screen image of a device such as a mobile phone or the like. Compared with various coding methods and reading devices at present, the information coding method and the reading device are simplest and most convenient possibly; although principles are similar to those of barcodes and two-dimensional codes, the coding method and the reading device are greatly simplified and the manufacturing cost is extremely low. The coding method and the reading device have the best advantage that remote ordering and fetching are realized with relatively low cost, namely, commodities are remotely ordered and are fetched from the vending machine at convenience.

The invention provides a solid-phase extraction device used for pre-treating a sample and belongs to the technical field of detection of pesticide residues, veterinary drug residues and fungaltoxin. The solid-phase extraction device is composed of a separation device and a collection device. The separation device is composed of a main body framework, a connection pipe and a waste liquid collection bottle; and the main body framework is composed of a porous plate, a solution buffering tank, and supporting frameworks at two sides. The collection device is composed of three layers of porous plates, a bottom plate without a hole, and the supporting frameworks at the two sides. Each porous plate is provided with a certain quantity of round holes with certain specifications. According to the device, a separation step and a collection step of the solid-phase extraction are separately carried out so that the high-efficiency operation in a pre-treatment process of the sample can be guaranteed, and the detection flux of the sample is relatively high. Meanwhile, the types and positions of the porous plates in the device can be replaced according to experiment requirements so that the flexible and multifunctional utilization of the solid-phase extraction device is realized. The device is easy to operate and is feasible, and can be used for purifying and enriching pesticides, veterinary drugs and fungaltoxin in all the samples.

The invention discloses a transfusion bag double-port ship-shaped welding interface of medical transfusion accessory, which comprises the following parts: ship-shaped welding empennage and dosing port, wherein the two dosing ports are installed on ship-shaped welding empennage side by side; the capping is installed on dosing port; the sealing plug is in capping cave; the periphery of capping installs pressing beard; the pressing beard corresponds to sealing convex area on the inner surface of dosing port. The method is convenience, which reduces the cost.

The invention relates to a dust collection feather duster based on the Bernoulli principle. The dust collection feather duster comprises a grip and a feather rod, wherein the feather rod is connected with the front end of the grip, and the outer wall of the feather rod is provided with feathers. The dust collection feather duster is characterized in that the outer wall of the feather rod of a hollow structure is provided with dust collection holes used for making dust on the feathers enter a center hole in the feather rod; the joint of the grip of a hollow structure and the feather rod is provided with a ventilation plate which is provided with circular holes and used for achieving circulation of air in the feather rod and air in the grip; the ventilation plate is provided with filter cloth, and the filter cloth is closely attached to the ventilation plate through a circular ring; fan blades, a motor, a battery, a wire and a switch are arranged in the hollow part in the grip; the switch is exposed to the outer surface of the grip, and the tail end of the grip is provided with through holes making air in the grip flow out. The dust collection feather duster is reasonable and simple in structural design, convenient to operate, low in labor intensity, good in cleaning effect, capable of avoiding the problem of dust flying caused in cleaning, low in cost, high in practicability and easy to produce and popularize.

The invention relates to a railway through-line power supply with both traction voltage compensation and railway electric power supply, which is composed of an energy transfer module M1, a left-rightinterconnected energy transfer module M2, an isolated energy storage module M3 and a common DC three-phase through-line power supply module M4. At that time of use, the energy transfer module M1 absorb energy from the traction side and transfers it to the DC side, and connected to the two side bridge arms of the traction side, A left-right interconnect energy transfer module M2 draws energy from both side and transports that energy to the opposite side or absorbs the energy from the energy delivery module M1, The isolated energy storage module M3 transports and feeds back energy to its supercapacitor SC side. A public DC type three-phase through power supply module M4 supplies power to a railway through line, Moreover, the left and right interconnected energy transfer modules M2 compensatethe variation of voltage and harmonic wave, realize the super capacitor SC energy storage and power supply to the through line, so that the traction voltage compensation and the railway electric power supply can be taken into consideration, the power supply is stable, the quality is high, and the normal operation of the railway through load is ensured.

The invention relates to an efficient method for manufacturing tooth preparation guide plates. The method comprises the following steps that a tooth required to be subjected to tooth preparation and adjacent teeth are scanned; the three-dimensional shape of a tooth preparation body is designed by using three-dimensional reverse engineering software; the two sets of guide plates in the preparationprocess of the buccal and labial surface, the lingual and palatine surface and the occlusal surface of the tooth are designed by using the three-dimensional reverse engineering software; the dental crown data surfaces of the adjacent teeth are each thickened to be a thin wall with the thickness of 1-4 mm; the guide plates are machined into an entity through a three-dimensional printer or numericalcontrol machining equipment; a detachable drill limiter is designed and is matched with hemispherical grooves in the tops of the guide plates; firstly, the first set of guide plate is completely in place on a dentition model; then the second set of guide plate is replaced, and the tooth preparation of the rest part can be guided; and finally, the guide plates are removed, and areas which are notcovered by the two sets of guide plates are finely trimmed to be smooth and continuous. According to the method, the efficiency of tooth preparation of the key functional areas such as the axial surface, the edge, the guide plane (the tooth preparation guide plate is shown in the description) and a jaw support fossa of a base tooth in the fixed repair and removable repair process can be improved,and the precision of tooth preparation guided by the guide plates can be improved.

The invention discloses a guardrail type step pitch gauge and belongs to a measuring tool. The guardrail type step pitch gauge is composed of a reference end cover, a pedestal, an auxiliary end cover, a workload block, a cushion block and a tightening screw, wherein the two end covers are connected with the pedestal by using inner hexagonal screws, the workload block is arranged in a pedestal groove and is fittingly ground with the cushion block, and a guardrail may form a one-body structure with the pedestal or objects in other shapes form detachable or non-detachable connection with the pedestal. The guardrail type step pitch gauge has the advantages of high working size precision, convenient use, good stability, and anti-impact and anti-bump performance. The guardrail type step pitch gauge is mainly used in proof reading of a laser interferometer, detection of a numerical control machine, detection of a coordinate measuring machine and other precise instruments.

The invention relates to a medical flat car with damping and lifting functions. The medical flat car comprising a bed frame and a car body, wherein the car body is provided with a lifting mechanism, the bed frame is arranged on the car body, the bottom of the bed frame is connected with a lifting column of the lifting mechanism, and a damping mechanism is also arranged between the bottom of the bed frame and the lifting column. Thus, the medical flat car has the damping and lifting functions at the same time, is powerful in function, flexible to use and convenient, and can effectively buffer the vibration generated by uneven pavement in use and buffer the impact, generated when carrying a patient on the medical flat car, to the lifting mechanism, so as to avoid the problems of secondary injury to the patient and damage to the lifting mechanism. The medical flat car has the advantages that the use performance is stable and reliable, the safety is very high, the treatment and curing effect for the patient is greatly ensured, the structure is very simple and ingenious, the production and processing are easy, the popularization and application are facilitated, and the patient can get benefit.

The invention provides a manifold for a double-stack fuel cell arranged in parallel and a double-stack fuel cell, the manifold comprises a first manifold element, a second manifold element and a third manifold element, the first manifold element comprises a first manifold main body provided with three first three-way flow channels and three second three-way flow channels, and the third manifold element comprises a second manifold main body provided with three second three-way flow channels and a third manifold main body provided with three third three-way flow channels; each first three-way flow channel and each second three-way flow channel are provided with a main flow channel connector, a first branch flow channel connector and a second branch flow channel connector; the second manifold element and the third manifold element are arranged on the left side and the right side of the first manifold element respectively and each provided with three steering flow channels; a first interface of each steering flow channel of the second manifold element and the third manifold element is arranged to be communicated with outer side interfaces of the two electric piles; and the first sub-runner interface and the second sub-runner interface of each second three-way runner are respectively communicated with the second interfaces of the steering runners of the second manifold element and the third manifold element in pairs through pipelines.