124results about How to "Reduce decrease" patented technology

The invention relates to a method and a device for tracking a dynamic resource dependency relationship and terminal equipment. The method comprises the following steps: acquiring cloud resource dependency data of a cloud service platform and / or a data center in real time; constructing a cloud resource dynamic dependency graph according to the cloud resource dependency data; detecting the cyclic dependence of the cloud resource dynamic dependence graph by adopting a depth-first search algorithm to obtain a cyclic dependence detection result; and using a TGCN algorithm to predict the future cyclic dependence of the cloud resource dynamic dependence graph to obtain a cyclic dependence prediction result. According to the method, a real-time cloud resource dynamic dependency graph is constructed, a depth-first search algorithm and a TGCN algorithm are adopted to process the cloud resource dynamic dependency graph to obtain a cyclic dependency detection result and a cyclic dependency prediction result, and a basis is provided for determining corresponding resource cyclic dependency prevention measures and processing strategies. And data is provided for effective cloud resource management and optimization, so that problems and risks caused by cyclic dependence are reduced, and the reliability of cloud services is improved.

The invention belongs to the technical field of network self-adaption, and particularly relates to a weak network self-adaption algorithm system based on dynamic network monitoring, which comprises the following steps of: deploying a monitoring agent on a network node; extracting network bandwidth, delay and packet loss rate from the network state report, preprocessing the extracted data, and extracting feature vectors from the preprocessed data; adjusting the size of a buffer area for data transmission according to the network bandwidth and delay; and controlling the sending and receiving of data according to the adjusted algorithm and parameter, monitoring the data transmission state in real time in the data transmission process, feeding back the data transmission state information, and adjusting the algorithm and parameter in time according to the feedback information. The problem of how to improve the efficiency and reliability of data transmission under the conditions of complex and changeable network environment, low bandwidth, high delay, serious packet loss and the like in the prior art is solved.

The invention discloses an anti-blocking self-passing type plastic molding device, which relates to the technical field of plastic product processing, and comprises a base station, a screw conveying component and a mold closing component, and a material pipe is fixedly mounted at a feeding hole in the upper part of the screw conveying component. In the working process of the injection molding machine, the driving motor drives the sliding barrel to rotate, through cooperation of the sliding column and the spiral groove, the pushing disc effectively pushes plastic materials in the material pipe, softening and blocking are avoided, meanwhile, the cutting knife is used for refining material particles, the pushing difficulty is reduced, and the production efficiency is improved; materials are screened through cooperation of screening holes and a blocking plate, large or unqualified materials are removed, it is ensured that the granularity of the raw materials is uniform, in the pushing process, a connecting rod and a sealing plate are matched, the interior of a material pipe is sealed after pushing is completed, the material pressure at the screening holes is increased through the double effects of sealing and extruding, and material circulation is promoted; the screening stability and the production quality are improved, and the finished product quality of plastic products is guaranteed.

The invention relates to the technical field of electric power safety monitoring, in particular to an electric power inspection well safety early warning method and system, and the method comprises a data collection step, a modeling step, a model training step, a prediction step, a judgment step and a fault early warning step. The system comprises a data acquisition module, a modeling module, a model training module, a prediction module, a judgment module and a fault early warning module. The electric inspection well monitoring system has the effects of monitoring the electric inspection well in time and reducing problems.

The invention discloses a preparation method of ultra-clean high-purity methanol for semiconductor electronics, which comprises the following steps: (1) mixing industrial methanol with a metal chelate, stirring for 1 hour at 20-35 DEG C, and dehydrating for 1-1.5 hours by using a 4A molecular sieve; (2) enabling the dehydrated methanol solution to pass through an adsorption device filled with 200kg of metal boron adsorbent, and reacting for 2-2.5 hours at the temperature of 40-50 DEG C; (3) carrying out ion exchange to remove anions and cations; (4) carrying out double-tower rectification on the methanol solution treated in the step (3) through a pressurizing tower and an atmospheric tower in sequence; and (5) conveying the rectified methanol solution to a hundred-grade purification room by a pump, and carrying out precision filtration. The content of methanol is increased to 99.9% or above, the content of anions is reduced to 100 ppb or below, the content of cations is reduced to 0.1 ppb or below, the water content is reduced to 200 ppm or below, the content of particles larger than 0.2 micrometer is reduced to 200 / ml or below, and the overall index reaches the G4 standard.

The utility model discloses an evanescent mode pouring gate structure for casting based on a box body. The evanescent mode pouring gate structure comprises an evanescent mode body, the evanescent mode pouring gate structure further comprises a pouring assembly used for flowing of pouring liquid, and the outer wall of the pouring assembly is fixedly connected with the outer wall of the evanescent mode body. The cross-shaped pouring gate is used for prolonging the length of the main pouring gate, and the utility model relates to the technical field of evanescent mode. According to the device, a flowing channel of molten metal is prolonged by arranging the pouring assembly and the cross-shaped pouring channel, the molten metal can be directly injected into the evanescent mode body, meanwhile, the part, not prone to being filled, in the evanescent mode body can be filled with the molten metal through the pouring assembly, and the air exhaust space is increased while the flowing channel is prolonged; the possibility that bubbles exist on the surface of a finished product is reduced, and the connecting parts of the pouring assembly and the evanescent mode body are pointed ends, so that workers can conveniently separate the finished product from waste materials.

The present invention provides a safe, environmentally friendly composition and an efficient method for recovering materials from industrial wastewater. More specifically, the present invention provides microorganism-derived compositions for the recovery of metals, elements, compounds and minerals, which compositions can be used to produce useful products.

The invention relates to the technical field of elbow shaping dies, in particular to an elbow comprehensive shaping die which comprises a die base, an elbow die is fixedly installed on the die base, an elbow is placed in the elbow die, an equipment frame is fixedly installed on the die base, a hydraulic cylinder is fixedly installed on the equipment frame, and an iron ball feeding base is in sliding fit with the equipment frame. A pushing mechanism is rotationally connected to the iron ball feeding seat, a plurality of shaping iron balls are placed in the mold seat, a check block is arranged in the mold seat in a sliding fit mode, when spherical shaping is conducted on an elbow, the iron balls can be automatically lifted to the proper height through the iron ball feeding seat, then the iron balls automatically fall into the elbow under the action of the pushing mechanism, and therefore the elbow is shaped. Problems and potential safety hazards caused by manual operation are effectively reduced, and safety, accuracy and production efficiency in the elbow manufacturing process are improved.

The utility model discloses a kind of copper-clad plate cleaning equipment, its structure includes cleaning tank and rotating roller, copper-clad plate is placed into the inside of cleaning tank by import and export, in the first motor drives transmission rod so that in after driving gear and transmission gear lower rotating roller rotation pushes copper-clad plate to move, in moving to the bottom nozzle and top nozzle set up, water pump works so that spraying treatment is carried out to the upper and lower two end surfaces of copper-clad plate, and in the rotating of cleaning brush roller set up up and down, the surface of copper-clad plate is cleaned, to clean the surface of copper-clad plate, the upper and lower two end surfaces are cleaned, so that cleaning efficiency is higher, avoid the case that single face cleaning efficiency is low, and under the action of bottom adsorption roller and top adsorption roller, liquid on the surface of copper-clad plate is adsorbed, reduce the existence of surface liquid, so that subsequent surface drying efficiency is faster.

The present disclosure provides a wiring harness production method, a nozzle and a wiring harness. The wiring harness production method includes: Step S10: preparing a substrate; Step S20: spraying a conductive material onto the substrate to form a conductive loop; and Step S30: forming an insulating protective layer at the periphery of the conductive loop and on a surface thereof. The present disclosure solves the technical problems of complex production process and high processing cost of a wiring harness for electrically connecting electrical components.

The application provides a sound insulation and heat preservation integrated prefabricated laminated board and a laminated board system, and belongs to the field of fabricated buildings. The laminated board comprises a prefabricated part, a heat insulation and sound insulation layer and a laminated layer. The prefabricated part comprises a prefabricated bottom plate and a connecting piece, the connecting piece is arranged on the prefabricated bottom plate, the heat insulation and sound insulation layer is continuously formed on the prefabricated bottom plate, the laminated layer is formed on the heat insulation and sound insulation layer, the connecting piece penetrates through the heat insulation and sound insulation layer, the bottom of the connecting piece is connected to the prefabricated bottom plate, the top of the connecting piece extends into the laminated layer, a first protective layer is formed between the top of the connecting piece and the top surface of the laminated layer, and a second protective layer is formed between the bottom of the connecting piece and the bottom surface of the prefabricated bottom plate. The heat insulation and sound insulation layer is arranged in the middle of the laminated board, a sandwich form is formed, a complete and continuous heat insulation and sound insulation layer is formed in the laminated board, and floor surface layer cracking caused by on-site laying of the heat insulation and sound insulation layer can be effectively avoided.

The utility model relates to a kind of wind field structure for super large format printing, the wind field structure includes: main air duct, one end of the main air duct is connected with the first blow port of forming cavity, the other end is connected with first suction port, for by the first blow port to the bottom of forming cavity blows gas;Make-up air duct, one end of the make-up air duct is connected with the second blow port of forming cavity, the other end is connected with the first suction port, the make-up air duct is for by the second blow port to the forming cavity inside and carries out make-up air;Upper air duct, one end of the upper air duct is connected with the third blow port of forming cavity, the other end is connected with the second suction port, for to the top of forming cavity blows gas.The utility model passes through the wind field structure of three-inlet double-outlet air duct, reduces the attenuation problem of wind speed along wind direction, can also reduce equipment air demand simultaneously.

A sensor unit according to the present invention is attached to the skin of a user to measure biometric information of the user, the sensor unit characterized by comprising: a sensor including a sensor body, an insertion part which is connected to the sensor body and can be inserted into the skin of the user, and a sensing unit provided at one side of the insertion part to measure biometric information; and a sensor unit housing on which the sensor is mounted, and which has a needle that can be inserted into the skin of the user together with the insertion part and an insertion hole through which the insertion part can pass, the sensor unit housing being attached to the skin of the user, wherein the insertion part is inserted into an incision part formed in the skin of the user by the needle together with the needle, and changes in inclination with respect to the sensor body so that the needle is separated from the skin of the user and then is inclined with respect to the longitudinal central axis of the incision part.

The invention discloses a universal porous substrate and a manufacturing method thereof, the universal porous substrate comprises a ceramic substrate, the ceramic substrate comprises a substrate front side and a substrate back side, the substrate front side is provided with a plurality of connecting holes, each connecting hole is connected with a copper bonding pad, isolation gaps are arranged between the copper bonding pads, and the isolation gaps are communicated with the ceramic substrate. The back face of the substrate is provided with a plurality of conducting holes, the conducting holes and the connecting holes are arranged in a staggered mode, each copper bonding pad comprises a welding face exposed in the corresponding conducting hole, and the welding faces of the adjacent copper bonding pads are exposed in the same conducting hole. According to the universal porous substrate provided by the invention, welding on the surface of a copper bonding pad can be avoided, a welding part can be hidden, the welding controllability of a welding area can be improved, the welding stability can be improved, the welding difficulty can be reduced, and a conductive loop can be conveniently and flexibly designed.

The application relates to the technical field of hydrogeological monitoring, in particular to a hydrogeological dynamic monitoring and analysis system and method based on big data; specifically, hydrogeological data is collected in real time, data denoising, space-time calibration and error correction are carried out in combination with edge computing, noise and drift error are eliminated by adopting variational mode decomposition, geological model constraint and wavelet transform, and the storage and transmission efficiency is optimized by increment encoding and Huffman encoding, and a quadratic form check code is generated to ensure data reliability; a space-time deep learning model and a self-attention mechanism are fused to predict a hydrological evolution trend, adaptive anomaly detection is realized by combining DBSCAN clustering and prediction error analysis; water resource allocation strategies are optimized through reinforcement learning, risk levels are evaluated in layers, and management schemes are generated, and finally, monitoring data, abnormal scores and decision results can be visually displayed. The application integrates multi-source data fusion, space-time modeling and intelligent decision-making, and improves hydrological monitoring precision and response efficiency.

The utility model discloses a pouring device for a counterweight casting, which relates to the technical field of casting pouring, and adopts the technical scheme that the pouring device comprises a device base, a pouring outer column and a vibration fixing block, a fixing ring is fixedly mounted outside the device base, a sliding bulge is fixedly mounted outside the pouring outer column, and a mold component is slidably connected outside the sliding bulge; a vibration fixing block is fixedly installed outside the pouring outer column, the vibration fixing block is connected with a fluid vibration assembly, and the fluid vibration assembly comprises a sliding rod, a motor, a rotating disc and a vibration spring. Due to the liquidity of molten metal and shrinkage in the solidification process, accurate balance is difficult to achieve due to the defects of air holes, shrinkage cavities and the like which are easily generated, and the pouring efficiency is low in the casting process.

The present application discloses a positive electrode active material composition, an aqueous positive electrode slurry, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material composition comprises a first positive electrode active material, a second positive electrode active material, and a third positive electrode active material. The volume mean particle diameter Dv50 of the first positive electrode active material is A1 µm, wherein 0.2≤ A1≤0.8; the volume mean particle diameter Dv50 of the second positive electrode active material is A2 µm, wherein 1.0≤A2≤2.5; and the volume mean particle diameter Dv50 of the third positive electrode active material is A3 µm, wherein 3.0^A3^6.0. According to the present application, the positive electrode sheet can have relatively high compaction density and also have relatively low moisture content.

The utility model discloses a coal mine gas extraction double-injection hole sealing device which comprises a first main bag body, a second main bag body and a first pipeline, and the first pipeline provides slurry for the first main bag body and the second main bag body to enable the first main bag body and the second main bag body to expand and make contact with the hole wall. The device further comprises a first auxiliary bag body, a second auxiliary bag body and a second pipeline, the first auxiliary bag body is attached to the first main bag body and is close to the hole opening, and the second auxiliary bag body is attached to the second main bag body and is close to the hole bottom. The second pipeline provides slurry for the first auxiliary bag body and the second auxiliary bag body so that the first auxiliary bag body and the second auxiliary bag body can expand to make contact with the hole wall, and a first explosion valve and an exhaust part are arranged on the second pipeline and located at the plugging section. And one end of the second pipeline is respectively connected with the second grouting pipe, the exhaust pipe and the slurry discharge pipe in a switching manner. According to the utility model, secondary plugging can be carried out on the plugging section of the drill hole, the problems of plugging effect reduction and air leakage caused by the influence of mining are avoided, gas extraction is guaranteed, and the compressive strength of solidified slurry can be improved.

The present application relates to a kind of IGBT side frame dispensing and dispensing detection integrated process whole line, for dispensing and dispensing detection integrated in one-time completion process equipment;Five links of side frame feeding, side frame coding, side frame dispensing, dispensing detection, finished product unloading are connected by conveying line in series, and three-axis module is responsible for carrying to each function station to realize closed loop operation.Due to the fusion of dispensing and dispensing detection process, the new dispensing process can effectively reduce the process of manual participation, greatly improve the accuracy of dispensing test, and greatly reduce the error rate.At the same time, each mechanism of the equipment is relatively independent, and does not interfere with and affect each other, easy to maintain later, and the overall maintenance cost is relatively low;The new dispensing and dispensing detection process whole line reduces the number of original process equipment operators, and the once feeding equipment can work for more than 1 hour, reducing the labor cost of enterprise equipment;Compared with the existing dispensing production line mode, the new dispensing and dispensing detection process integrated whole line can reduce the floor area.

The present application relates to oil and gas storage and transportation application field, specifically relates to a kind of centrifugal pump segmented filling pump device and filling pump method;Including centrifugal pump, filling pump valve, pump outlet cut-off valve, pump inlet valve, subsea valve and pump inlet intermediate check valve;The centrifugal pump one end is connected pump outlet pipe, the other end is connected pump inlet pipe, wherein pump outlet cut-off valve and filling pump valve are sequentially arranged on pump outlet pipe;The present application gradually fills pump inlet pipeline by using segmented dense medium liquid, air is gradually absorbed and replaced by liquid by the action of centrifugal pump, so as to realize the dense filling of space in pump shell, ensure that pump inlet pipeline forms segmented dense structure before starting, so that liquid can smoothly enter pump shell and be pumped to outlet through the working cavity of pump, effectively avoid the phenomenon of pumping empty when pump starts, ensure the normal flow of liquid.

The utility model discloses a high-voltage transmission conductor galloping monitoring device based on a Beidou navigation system, which comprises a power supply mechanism detachably connected to the inside of an assembly shell, the assembly shell is detachably connected with a high-voltage transmission line, and a wireless communication module is detachably connected to the lower end face in the assembly shell. The wireless communication module is electrically connected with the power supply mechanism, and the wireless communication module is electrically connected with the Beidou positioning module. The device adopts the Beidou positioning module, so that state information such as swinging and vibration of the power transmission line can be monitored in real time; the wireless communication module converts monitored data into wireless signals from digital signals, and then transmits the wireless signals to a remote terminal, thereby reducing the problem that the line cannot be detected in real time in the conventional manual inspection, enabling the safe operation of the power transmission line to be more intelligent and accurate, and improving the safety of the power transmission line. And the operation safety monitoring capability of the power transmission line under severe weather conditions such as strong wind and the like is improved. The device is suitable for the technical field of power transmission line safety detection.

The invention discloses a preparation method of a mesoscopic perovskite solar cell and the mesoscopic perovskite solar cell, and belongs to the technical field of mesoscopic perovskite solar cells. The passivation layers are prepared on the surface of the mesoporous spacer layer and the surface of the pore inner wall of the mesoscopic perovskite solar cell, oxygen vacancies on the surface of the mesoporous spacer layer can be effectively reduced, recombination of carriers is reduced, direct contact between the mesoporous spacer layer and a mesoporous membrane layer below the mesoporous spacer layer and a perovskite active layer is prevented, and the performance of the solar cell is improved. The interface of the perovskite crystal is passivated, carrier recombination at the interface of the mesoporous spacing layer and the perovskite active layer and at the interface of the perovskite active layer and the back electrode is inhibited, the carrier transmission life is prolonged, and the cell efficiency is improved.

The invention discloses a method for manufacturing a lightweight automobile conformal wire harness by using multi-material micro 3D printing, and relates to the technical field of automobile wire harness structure manufacturing, and the method comprises the following steps: S10, carrying out three-dimensional modeling on an automobile structure needing wire harness arrangement, and processing a curved surface model substrate matched with the surface of an automobile; and S20, at least two materials used for printing the automobile wire harness structure are attached to the curved surface of the model substrate on the curved surface model substrate matched with the automobile surface to print the automobile wire harness structure. Complete conformal and tight fitting of the automobile wire harness and the automobile structure can be realized, the bending and form sudden change part is not easy to break, the bending stress is small, wiring can be completed in a narrow space, the automation degree of wire harness production and assembly can be effectively improved, the manual participation process is greatly reduced, the labor cost is reduced, and the production efficiency is improved. And the workpieces do not need to be frequently switched, manufacturing process parameters do not need to be adjusted, batch production can be further facilitated, the production speed is higher, and automation can be better achieved.

The invention particularly relates to the technical field of wheelchairs, and discloses a rehabilitation walking-assisting wheelchair which comprises a frame, the rear portion of the upper end of the frame is fixedly connected with a chair back, the inner surface of the chair back is rotatably connected with a cushion, and the inner surface of the chair back, the rear end of the chair back and the left end and the right end of the frame are jointly provided with active and passive assemblies. The inner cavity and the lower end of the cushion are jointly provided with a ventilation massage assembly. According to the rehabilitation walking-assisting wheelchair, by arranging the driving mechanism, the fixing mechanism and the hand exercising mechanism, when a user uses the wheelchair, the corresponding exercising mode can be performed according to the self condition of the user according to the two exercising modes of hand active exercising and leg passive exercising or hand passive exercising and leg active exercising of the user; the health-care pillow can effectively enhance muscle strength, improve joint flexibility, promote blood circulation, prevent muscle atrophy and joint stiffness, and is beneficial to improving physical strength, improving cardio-pulmonary functions, promoting self-movement ability and reducing bedsore risks.

The utility model relates to an electroplating bath and electroplating equipment, the electroplating bath comprises a pool body, the pool body is provided with a circulating filtering mechanism, the circulating filtering mechanism comprises a first connecting pipe, a second connecting pipe, a circulating filtering box, a first power pump and a second power pump, the first connecting pipe is connected with the circulating filtering box and the pool body, and the second connecting pipe is connected with the circulating filtering box; the first power pump is arranged on the first connecting pipe; the second connecting pipe is connected with the circulating filter box and the pool body, and the second power pump is arranged on the second connecting pipe. The method has the effect of reducing the influence on subsequent part electroplating.

The present application discloses an electrode assembly and a preparation method therefor, a battery cell, a battery, and an electronic device. The electrode assembly comprises a first electrode sheet, a separator, and a second electrode sheet. The first electrode sheet comprises a first electrode sheet main body and a first tab. The first electrode sheet main body comprises two first electrode sheet edges that are disposed opposite one another in a first direction and two second electrode sheet edges that are disposed opposite one another in a second direction. The first direction is perpendicular to the second direction. The first tab is located at one first electrode sheet edge. In the electrode assembly of embodiments of the present application, the separator between the first electrode sheet and the second electrode sheet forms a multi-layer separator structure. Projection in a third direction causes the multi-layer separator structure to overlap with the first electrode sheet edge and / or the second electrode sheet edge. The third direction is perpendicular to the first direction and the second direction, thereby alleviating the problem of short circuiting caused by expansion of the electrode sheet when the battery is in use.

The invention belongs to the technical field of medical tools, and particularly relates to an anti-pollution infusion port maintenance and disinfection positioner. Comprising a maintenance tool box, a box cover is hinged to the maintenance tool box, UVC patch lamp beads are installed on the inner face of the box cover, an electric appliance bin is arranged in the maintenance tool box, a dry battery and a control circuit board are installed in the electric appliance bin, the dry battery is electrically connected with the control circuit board, and the control circuit board is electrically connected with the UVC patch lamp beads. The infusion port marking opening is formed in the transparent dressing, the positioning ring is fixed to the transparent dressing, the injection base is installed on the positioning ring in a threaded mode, the guide hole is formed in the middle of the transparent dressing, the needle head of the butterfly wing needle penetrates into the guide hole, the positioning notch formed in the head end of the butterfly wing needle is in sliding connection with the positioning wall on the injection base, and through cooperation, the puncture center point can be accurately positioned; the vertical insertion of the butterfly wing needle is ensured, the accuracy and stability of puncture are improved, the probability of puncture failure is reduced, and the pain and psychological burden of a patient are reduced.

The present invention discloses a double veneer panel alignment conveying mechanism, which belongs to the technical field of double veneer panel conveying devices, and includes a workbench, a panel feeder and a press, wherein the panel feeder includes a support plate, and cross beam plates are vertically arranged on both sides of the support plate, and first moving wheels are arranged on the outer sides of both ends of the support plate, and support blocks are arranged on the ends of the two cross beam plates away from the support plate, and second moving wheels are arranged on the outer sides of the ends of the two support blocks, and the inner sides of the two support blocks are respectively hinged with a flip arm, and a first driving member is arranged on the support plate, and the output end of the first driving member is connected to the moving arm and the first driving member drives the moving arm to translate, and a first clamping plate is arranged on the moving arm, and a second driving member is connected to the support block, and the output end of the second driving member is connected to the flip arm and the second driving member drives the flip arm to flip, and a second clamping plate is arranged on the flip arm. The beneficial effect of the present invention is that the waiting time of the panel feeder can be reduced, and the product output can be improved.

The present application relates to a kind of extruded aluminum-wood double-slot type connection's modular structure system of special section, adopt double-slot type connection to form aluminum-wood combination structure module system, and realize the quick splicing between module by cast aluminum piece insertion.The frame member of the aluminum-wood combination structure module unit adopts aluminum alloy extruded special section.Frame node adopts double-slot type connection node, the node is connected by groove with extruded special section frame column using double-slot card, double-slot card is formed by two grooves and a section of vertical plate extrusion, vertical plate is holed, and is connected with frame beam using stainless steel bolt.Frame beam is connected with double-slot card before, and the slot of identical size with double-slot card vertical plate is opened, double-slot card vertical plate is inserted into frame beam, and double-slot card vertical plate is connected with frame beam by stainless steel bolt.

The utility model provides a continuous grease press, which relates to the technical field of grease presses and comprises an oil press, a hopper is mounted on the surface of the oil press, a barrel is arranged on the surface of the oil press, a pressing screw is mounted on the inner wall of the barrel, a controller is mounted on the surface of the oil press, and the controller is connected with the hopper and the barrel. An oil pan and a sliding way are installed at the position, located at the bottom of a barrel, of the surface of the oil press, a filtering device is arranged on the side close to the oil pan, the filtering device filters impurities in squeezed oil through a processing hopper and a filtering net, and the filtering device comprises the processing hopper which is installed on one side of the oil press and is close to the oil pan. When the oil press is used for producing and processing oil, impurities in the oil can be pretreated and filtered, so that the quality of the oil is ensured, the impurities are reduced, subsequent further processing and using effects are facilitated, and the practicability of the oil press is also improved.