526results about How to "Avoid passing" patented technology

The invention discloses a child massage teaching auxiliary system based on artificial intelligence, and particularly relates to the technical field of massage auxiliary teaching, a Kalman filtering technology is adopted to effectively filter out large-amplitude interference in hand motion data, time-frequency analysis is carried out in combination with fast Fourier transform or wavelet transform, and frequency domain characteristics of microfibrillation signals are accurately captured; through fine micro-tremor signal analysis, noise interference is removed, the fine change of micro-tremor of the hands of a student is accurately identified, and the evaluation precision of the massage action stability is remarkably improved; and the integrated learning progress management module automatically adjusts teaching contents according to the learning progress and skill mastering conditions of the students, provides real-time feedback and forward excitation, provides excitation when the students have good performance, prompts and optimizes follow-up actions in real time when deviation occurs, helps the students to continuously improve skills, avoids error accumulation, and effectively improves the teaching effect.

The invention discloses a device and a method for testing the compression resistance of glass beads for roads, and relates to the technical field of compression resistance testing. Comprising a detection mechanism and a pressure applying mechanism, the pressure applying mechanism comprises a plurality of supporting columns, the supporting columns are fixed to the upper portion of a mounting box, a mounting plate is fixed to the upper portions of the supporting columns, a hydraulic cylinder is fixed to the upper portion of the mounting plate, a lifting plate is connected to the end of the hydraulic cylinder, and two fixing plates are fixed to the lower portion of the lifting plate; baffles are fixed to the two sides of the fixing plates, a pressing roller is rotationally arranged between the two fixing plates, the pressing roller is wrapped with a rubber layer, a rotating motor is fixed to the fixing plates, and an output shaft of the rotating motor is connected with the pressing roller through a coupler. The stress area is increased through rubber, the method is close to the actual application scene, and the measurement error is reduced.

The invention discloses a VSG-VDG-based autonomous control method and device for an AC-DC hybrid micro-grid interconnection converter. The equipment comprises a direct-current micro-grid, an alternating-current micro-grid and an interconnection converter connected with the direct-current micro-grid and the alternating-current micro-grid. The direct current microgrid is provided with a direct current side VDG control module which is used for controlling a direct current converter to adjust direct current power supply output by collecting internal voltage and current signals; the AC micro-grid is provided with an AC side VSG control module which is used for controlling on-off of a switching tube of a three-phase full-bridge inverter by collecting internal voltage and current signals so as to adjust AC three-phase voltage output. The interconnection converter is provided with an interconnection converter control module which is used for connecting the direct-current bus and the alternating-current bus through the bidirectional interface converter and adjusting energy balance in the subnet through bidirectional energy flow. According to the method, the robustness of the AC / DC micro-grid system is enhanced, and the fault self-healing capability of the system under extreme conditions and the transient and steady-state stability of a controlled system are improved.

The invention belongs to the technical field of optical fiber communication, and relates to an eight-mode mode division multiplexer based on a multi-core optical fiber, which comprises a substrate material and a central few-mode fiber core, a high-refractive-index ring is arranged in the central few-mode fiber core; the peripheral single-mode fiber core comprises a first single-mode fiber core used for carrying out LP11a mode conversion on the central few-mode fiber core, a second single-mode fiber core used for carrying out LP31 mode conversion on the central few-mode fiber core, a third single-mode fiber core used for carrying out LP11b mode conversion on the central few-mode fiber core, and a fourth single-mode fiber core used for carrying out LP21b mode conversion on the central few-mode fiber core; the fifth single-mode fiber core is used for carrying out LP12 mode conversion on the central few-mode fiber core; the sixth single-mode fiber core is used for carrying out LP21a mode conversion on the central few-mode fiber core; and the seventh single-mode fiber core is used for carrying out LP02 mode conversion on the central few-mode fiber core. The invention has the characteristics of large number of conversion modes, high space utilization rate, low insertion loss, high flux and the like.

The utility model belongs to the technical field of water conservancy pipelines, and particularly relates to an anti-blocking water conservancy pipeline which comprises a pipeline body, a filter plate is fixedly connected to the inner wall of the pipeline body, a rotating assembly is arranged on the outer wall of the filter plate, and an impurity discharging opening is formed in the bottom of the pipeline body. An elastic telescopic rod is arranged in the pipeline body, and an anti-blocking device is arranged in the pipeline body. According to the anti-blocking water conservancy pipeline, the filter plate is used in cooperation with the anti-blocking device, so that after the filter plate is blocked after being used for a long time or when water flow in the pipeline body is large, the filter plate continuously extrudes the telescopic end of an elastic telescopic rod to move under the pressure effect, and a wedge-shaped block extrudes a wedge-shaped vertical rod to move; and under the action of the rotating inclined rod and the fixed baffle ring, the rotating rod drives the cleaning brush to continuously approach the filter plate until the cleaning brush is in contact with the filter plate, so that the cleaning brush can clean the filter plate, and normal use of the pipeline body is ensured.

The utility model relates to the technical field of feeding machines, and particularly discloses a novel centrifugal disc feeder which comprises a rack, an inner disc and an outer disc, the outer disc is provided with a containing space for containing external workpieces, the inner disc is arranged in the containing space, the rack is provided with a first driving mechanism and a second driving mechanism, the first driving mechanism is in driving connection with the inner disc, and the second driving mechanism is in driving connection with the outer disc. The inner disc is rotationally connected with the rack through the first driving mechanism, the second driving mechanism is in driving connection with the outer disc, and the outer disc is rotationally connected with the rack through the second driving mechanism; an output outer edge is arranged on the end edge of the outer disc; an external workpiece is placed on the inner disc, the first driving mechanism drives the inner disc to rotate, the workpiece moves to the output outer edge under the action of centrifugal force, and the second driving mechanism drives the outer disc to rotate and sends the workpiece out of the feeder. The inner disc rotates to drive workpieces on the inner disc to do centrifugal motion, the workpieces move to the output outer edge under the action of centrifugal force, noise generated in the feeding process is reduced, meanwhile, high-speed feeding is achieved, and efficiency is improved.

The utility model discloses a protective shell based on an unmanned aerial vehicle hydrogen fuel cell, which relates to the technical field of battery protection and comprises a blocking cover, one end of the blocking cover is sleeved and connected with a protective shell, and a ceramic shell is embedded in the inner side of the protective shell. Through the arranged protective shell assembly structure, a cushion frame assembly on the surface of the protective shell assembly structure and a cushion plate assembly on the inner side of a blocking cover, the protective effect of elastic damping on the exterior of the battery can be achieved, so that when the unmanned aerial vehicle is impacted, the hydrogen fuel battery in the unmanned aerial vehicle can still be kept stable, and through the arranged ceramic shell assembly structure, a user can adjust the temperature of the unmanned aerial vehicle according to the temperature of the flight environment. And the surface of the hydrogen fuel cell can be heated or cooled, so that the hydrogen fuel cell is kept at a proper operating temperature, and the service life of the hydrogen fuel cell is prolonged.

The invention relates to the technical field of power distribution, in particular to a power distribution line tension rod electrified opposite-polarity umbrella-shaped shielding cover, which comprises a telescopic assembly, a fixed rod and a sliding rod arranged in the fixed rod, and the sliding rod and the fixed rod are connected with an insulating soft rod through a hinge piece; the insulation assembly comprises insulation blankets which are arranged on the side wall of the insulation soft rod and used for carrying out wrapping insulation on wrapping points, the insulation blankets are symmetrically arranged about the central axis of the fixed rod, the two insulation blankets are connected through a locking fastener, and through the linkage design of the sliding rod and the insulation soft rod, the insulation soft rod is fixed to the fixed rod. Insulation wrapping of a charged area can be rapidly completed in a short time. An operator only needs to push the sliding rod downwards to drive the insulation blanket to be folded, so that the operation time is greatly shortened, the working efficiency is improved, and the exposure time of the operator in an electrified environment is shortened as the insulation blanket can quickly and effectively cover an electrified area.

The invention relates to an aluminum profile extrusion forming die cooling mechanism which comprises a front die and a rear die, the rear die comprises an inner die block, an outer die block and a spacer block, a welding chamber and a working belt are arranged on the inner die block, the inner die block is connected with a water cooling mechanism, and the water cooling mechanism comprises a first cooling channel. The first cooling channel is arranged on the rear side of the welding chamber and annularly arranged on the outer side of the working belt, the spacer block is connected with an air cooling mechanism, the air cooling mechanism comprises a second cooling channel, and the air cooling mechanism forms an air thermal insulation layer in the spacer block through the second cooling channel. The rear mold is divided into three parts, the inner mold block is cooled through the water cooling mechanism, the cooling efficiency is improved, meanwhile, the air cooling mechanism forms an air thermal insulation layer in the spacer block through the second cooling channel, heat of the inner mold block is prevented from being transmitted to the outer mold block, the overall cooling efficiency of the rear mold is improved, and the cooling efficiency is improved. And cracks caused by non-uniform cooling of the rear mold can be prevented.

The utility model relates to the technical field of pipeline installation, in particular to a heat insulation type pipeline cabin penetration framework which comprises a cabin wall, a cooling assembly and an installation assembly, a casing pipe is arranged on the cabin wall, a high-temperature pipeline is arranged in the casing pipe, the high-temperature pipeline penetrates through the casing pipe, the casing pipe is provided with the cooling assembly corresponding to the high-temperature pipeline, and the casing pipe is provided with a fixing plate. A connecting plate is arranged on the high-temperature pipeline, and the rear end of the connecting plate is attached to the fixing plate. When the device is used, the motor is started to drive the rotating shaft and the first gear to rotate, the first gear drives the first gear ring to rotate, the first gear ring drives the second gears to rotate, and the second gears drive the rotating rod and the fan blades to rotate, so that the speed of air between the sleeve and the high-temperature pipeline is increased conveniently; cooling between the sleeve and the high-temperature pipeline is facilitated, heat of the high-temperature pipeline is prevented from being transmitted to a hull structure, and the heat insulation effect between the high-temperature pipeline and the hull bulkhead is improved.

The invention provides a program vulnerability analysis method, device and equipment. The scheme comprises the following steps: identifying a first type of risk instruction with an execution risk in a to-be-analyzed program; then, a risk calling sequence is extracted from the to-be-analyzed program according to the data dependency relationship of the input parameters of the first type of risk instructions in the to-be-analyzed program, and an end code unit in the risk calling sequence comprises the first type of risk instructions; the next code unit in the adjacent code unit combinations in the risk calling sequence is called by the previous code unit; then, for the risk calling sequence, session prompt information used for being input into the large model is generated, and the session prompt information is used for indicating the large model to check program vulnerabilities in the risk calling sequence; then, session prompt information is input into the large model, and a vulnerability analysis result, output by the large model, of the to-be-analyzed program is obtained.

The invention discloses a damping unit, a shoe sole and a design method thereof, and relates to the technical field of shoe sole damping, a quasi-zero stiffness module comprises two cross arms and four inclined arms which are symmetrically arranged up and down, two energy storage arms are arranged between the two cross arms, two ends of the two energy storage arms are fixedly connected with the inner sides of two ends of the two cross arms respectively, and the two ends of the two energy storage arms are fixedly connected with the inner sides of two ends of the two cross arms respectively. The two energy storage arms are arranged in an X shape; the bistable module comprises a convex module and a concave module which are symmetrically arranged on the two sides of the quasi-zero stiffness module, the convex module comprises a first connecting arm and a convex block arranged in the middle of the bottom of the first connecting arm, and one end of the first connecting arm is fixedly connected with the joint of the two oblique arms; the concave module comprises a second connecting arm and a concave block arranged in the middle of the top of the second connecting arm, and the convex block is matched with the concave block in an embedded mode. The quasi-zero stiffness module is used for reducing sole vibration during movement, and the bistable module is used for storing mechanical impact energy for impacting large deformation, so that a wearer is protected from being injured by sudden impact.

The invention provides refractory concrete and a preparation method thereof, and belongs to the technical field of concrete. The preparation method comprises the following steps: modifying basalt fiber, modifying granite stone powder, grafting and mixing. The step of modifying the granite stone powder comprises the following steps: putting the granite stone powder into an ethanol solution, adding sorbitol laurate and polyoxyethylene sorbitan monolaurate, stirring at the stirring temperature of 46-50 DEG C, uniformly stirring, adding threonine, carrying out ball milling treatment for 26-30 minutes at the ball milling rotating speed of 114-125rpm according to the ball-to-material ratio of (3-5): 1, and after the ball milling is finished, cooling to room temperature to obtain the modified granite stone powder. Filtering and drying to obtain modified granite stone powder; the particle size of the granite stone powder is 135 to 145 nm; the mass concentration of the ethanol solution is 45-50%; the mass ratio of the granite stone powder to the ethanol solution to the sorbitol laurate to the polyoxyethylene sorbitan monolaurate to the threonine is (8.3 to 8.7) to (90 to 97) to (1.0 to 1.2) to (1.1 to 1.5) to (4.5 to 4.9); the prepared refractory concrete is high in strength, excellent in water permeability resistance, good in high-temperature corrosion resistance and low in linear shrinkage rate.

The invention relates to the technical field of civil air defense engineering detection, in particular to a civil air defense engineering mouth site air tightness detection system and method, and the system comprises a reserved pipe which is arranged in an engineering mouth wall body and is used for communicating the spaces at the two sides of the engineering mouth wall body, and the two ends of the reserved pipe are provided with detachable plugs; the smoke generating device is used for inputting smoke into the mouth part of the civil air defense project through a reserved pipe outside the mouth part of the civil air defense project or generating smoke in the mouth part of the civil air defense project; the air pumping device is used for pumping air into the mouth of the civil air defense project through the reserved pipe outside the mouth of the civil air defense project; and the air pressure measuring device is used for measuring air pressure in the mouth of the civil air defense project in real time. According to the method, smoke is generated in the closed mouth of the civil air defense project and air inflation is carried out, so that the interior of the mouth of the civil air defense project reaches certain air pressure, whether the overall air tightness of the mouth of the civil air defense project is qualified or not is judged by observing the air pressure descending speed, and a specific leakage point is found by observing the smoke leakage position.

The invention discloses a soot blowing device of an SCR (selective catalytic reduction) denitration reactor, which comprises a fixing frame, a denitration shell and a soot blowing shell are fixedly arranged on the fixing frame, the denitration shell is communicated with the soot blowing shell, a catalytic unit for reducing nitrogen oxides in industrial flue gas is slidably inserted into the denitration shell, and the soot blowing shell is communicated with the denitration shell. A supporting piece for supporting the catalytic unit in the soot blowing state is fixedly arranged at the side end of the soot blowing shell, the supporting piece is arranged in the soot blowing shell, and a push-out device for pushing the catalytic unit to move to the supporting piece is arranged on the denitration shell; air can be automatically guided into the next group of air bags through the guide-in device and the switching device, so that the multiple groups of catalytic units can be used in sequence, and the device can still perform denitration operation in the soot blowing process, so that the system can keep high-efficiency operation at any time, and due to the design, the overall efficiency of the system is improved, and the energy consumption of the system is reduced. And the possibility of human errors is reduced through automatic operation, and the reliability and the stability of the system are enhanced.

The invention discloses a long-acting environment-friendly flame-retardant anti-static rubber pad and a preparation method thereof, and relates to the technical field of rubber pads. The long-acting environment-friendly flame-retardant anti-static rubber pad prepared by the application comprises the static conductive layer at the bottom layer and the static dissipation layer attached to one surface of the static conductive layer. The static dissipation layer comprises modified nitrile rubber, acrylate resin and a first auxiliary agent; and the static conductive layer comprises modified nitrile rubber, butadiene styrene rubber, polyurethane resin and a second auxiliary agent. Wherein the modified nitrile rubber is obtained by reacting a Grignard reagent RMgBr with cyano groups in nitrile rubber, converting the cyano groups into carbonyl groups, and introducing a phosphorus-containing organic compound into the nitrile rubber by utilizing aldol condensation. The rubber pad prepared from the modified nitrile rubber is excellent in anti-static performance, has flame retardance, is long-acting and environment-friendly, and has a wide application prospect.

The invention discloses an integrated machining device for a motor shaft, relates to the technical field of motor shaft machining, and solves the technical problem that the flat milling quality of the motor shaft is affected due to the facts that flat milling steps of the motor shaft are uneven and fillets are prone to occurring due to the fact that machining is generally carried out in one direction. Comprising a machine base, and the top of the machine base is provided with a mechanical arm component for clamping and discharging a motor shaft; the material conveying mechanism is installed on the upper surface of the left end of the machine base and conducts intermittent discharging on the motor shaft. The milling and flattening structure is positioned on the right side of the material conveying mechanism and is used for longitudinally and transversely milling and flattening the end part of the motor shaft; according to the invention, transverse and longitudinal cross milling is adopted for the end part of the motor shaft part, so that the flat milling part of the end part of the motor shaft part is smooth and flat, the condition of fillet is avoided, the flat milling processing quality of the motor shaft part is improved, and when the wire drilling processing is carried out on the central hole of the motor shaft, the length of the wire drilling hole is inductively limited, so that the condition of inaccurate length of the wire drilling hole is avoided.

The fresh air conditioner with the noise reduction function comprises an air conditioner outdoor unit body, a heat dissipation cavity and a refrigeration assembly are arranged in the air conditioner outdoor unit body, a sound absorption layer is fixedly connected to the interior of the heat dissipation cavity, and a plurality of sound absorption holes are evenly formed in the inner side wall of the sound absorption layer; the lower side wall of the air conditioner outdoor unit body is fixedly connected with a plurality of matching sleeves, the upper inner wall of each matching sleeve is fixedly connected with a damper, the output end of each damper is fixedly connected with a supporting leg, and the outer side wall of each supporting leg is fixedly connected with a matching protrusion. A reset spring is fixedly connected to the position, located in the matching sleeve, of the lower side wall of the matching protrusion. The vibration amplitude of the device can be effectively reduced through the reset spring, the damper can absorb vibration energy, the vibration reduction effect of the device can be effectively improved through combination of the reset spring and the damper, and then noise can be prevented from being transmitted to the outside.

The utility model provides a forging clamping jaw for forging workpieces, which comprises a clamping jaw transmission base and a clamping jaw thrust driving piece, the clamping jaw thrust driving piece is mounted on the clamping jaw transmission base, and the clamping jaw transmission base is fixedly mounted on a mechanical arm; according to the utility model, when the two clamping jaws are driven to clamp a forging piece, the rack can generate an independent external pushing force which can also be applied to the forging piece, so that the friction force between the clamping jaws and the forging piece is increased, and the forging piece can be isolated from a main body structure through the generation of the pushing force, so that the forging piece can be prevented from being contacted with the main body structure; the high temperature of the forging part is prevented from being quickly transferred to the internal structure of the forging part, the influence of the high temperature on the strength of the internal structure is reduced, the clamping effect of the forging part can be conveniently guaranteed, the overall high temperature resistance is improved, and the service life is prolonged.

The invention discloses a reflection module and a camera module thereof, and the reflection module comprises a reflection element which comprises a reflection surface and a matching surface, and the reflection surface is used for reflecting light transmitted along a first optical axis to be transmitted along a second optical axis; the movable carrier is used for bearing the reflecting element; the reinforcing piece is arranged between the reflecting element and the movable carrier so that the reflecting element can be fixed to the movable carrier, the reinforcing piece comprises a first fixing part, a second fixing part and a partition gap which are integrally formed, the first fixing part is used for being fixedly connected with the movable carrier, and the second fixing part is used for being fixedly connected with the matching face of the reflecting element; the first fixing part is located on the peripheral side of the second fixing part, and in the thickness direction of the reflection element, the projection of the fixed connection area of the first fixing part and the movable carrier and the projection of the fixed connection area of the second fixing part and the matching face are arranged in a staggered mode. The partition gap is located on the inner side of the first fixing part so as to isolate the first fixing part from the reflecting element.

The invention relates to a wireless charging method and device and a storage medium. The wireless charging method comprises the following steps: in response to determining that first electronic equipment is in a wireless charging electric quantity equalization mode and detecting second electronic equipment to be charged, obtaining the electric quantity of the second electronic equipment, the wireless charging electric quantity equalization mode being used for realizing an electric quantity equalization state of the wireless charging equipment; wherein the electric quantity balance state comprises a state in which a difference value between the electric quantity of the first electronic equipment and the electric quantity of the second electronic equipment is smaller than a threshold value; and in response to determining that the electric quantity of the second electronic equipment is greater than the electric quantity of the first electronic equipment, stopping charging the second electronic equipment. According to the invention, coordination and balance of the electric quantity of the wireless charging equipment are realized, and energy waste is reduced.

The utility model relates to a motion platform and a perovskite coating device. The motion platform comprises a platform base and a motion frame, the first guide mechanism comprises a first rail and a first air bearing, the first rail is arranged on the platform base, the first air bearing is installed on the moving frame and located between the first rail and the moving frame, and the first air bearing is used for forming an air film between the first air bearing and the first rail and bearing first air buoyancy force for supporting the moving frame on the first rail; the first pre-tightening mechanism comprises a first magnetic attraction part installed on the moving frame and a first magnetic attraction matching part installed on the platform base, and the first magnetic attraction part and the first magnetic attraction matching part generate a magnetic attraction effect so that the first magnetic attraction part can bear first magnetic attraction force opposite to the first air buoyancy force in direction.

The utility model belongs to the technical field of micro-nano bubble hydrogen water, and particularly relates to a degerming micro-nano bubble hydrogen water generator which comprises a micro-nano bubble hydrogen water generator component, a bubble filtering and re-refining component is mounted at the end of the micro-nano bubble hydrogen water generator component, and a bubble filtering and re-refining component is mounted at the end of the bubble filtering and re-refining component. A protection and pressure release assembly is mounted on the outer wall of the bubble filtering and re-refining assembly; the micro-nano bubble hydrogen water generator assembly comprises a motor, the top of the motor is rotationally connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a cutting knife, the outer wall of the cutting knife is provided with a hole, the outer wall of the motor is connected with a pressure bin, and the outer wall of the pressure bin is fixedly connected with a water inlet pipe. An air inlet pipe is arranged on the side of the water inlet pipe; and a plurality of cutting knives can be mounted as much as possible without influencing normal liquid flowing, so that the gas cutting efficiency is improved, and micro-nano bubble hydrogen water is produced more quickly.

The invention belongs to the technical field of yoghourt seasoning powder preparation equipment, and particularly relates to spraying equipment for preparing rose yoghourt seasoning powder, the spraying equipment comprises a heat insulation shell, the top end of the heat insulation shell is hermetically connected with a shell cover through a bolt, and the inner wall of the heat insulation shell is fixedly connected with an impurity separation mechanism and a nozzle cleaning mechanism. The spraying equipment for preparing the rose yoghurt seasoning powder has the functions of separating impurities from rose seasoning stock solution and preventing spray blockage, and also has the functions of automatically cleaning the spray head and cooling the surface of the spray nozzle, so that the surface of the spray nozzle of the spray head is prevented from being influenced by high temperature of powder drying equipment to dry and solidify a large amount of rose seasoning substances; according to the atomizing equipment, the uniformity of atomized small liquid drops can be guaranteed, meanwhile, the frequency of replacing and maintaining the atomizing nozzles can be reduced through alternate use of the two atomizing nozzles, the use reliability and effect of the atomizing equipment are effectively improved, and meanwhile the preparation quality of the rose yoghourt seasoning powder can be guaranteed.

The invention relates to the technical field of electrical equipment for brewing coffee, in particular to a full-automatic coffee machine which comprises a lower brewing head unit, an upper brewing head unit, a powder sweeping unit, a main driving unit and a lower brewing head driving unit which are arranged in a working cavity of the coffee machine. The lower brewing head unit sequentially cooperates with the powder supply unit, the upper brewing head unit, the lower brewing head driving unit and the powder sweeping unit to complete the working steps of coffee powder adding, pressed powder pressing, coffee extraction, pressed powder ejection, pressed powder sweeping and brewing piston resetting in the linear movement process in the working cavity, distributed action is adopted, and the function is reliable; meanwhile, adjustment of pressure relief and water inflow in the extraction head and driving of pressed powder pressing, pressed powder ejection, pressed powder sweeping and brewing piston resetting are completed only through the main driving unit, the configuration number of driving structures in the coffee machine is reduced, and convenience is provided for reducing the design size of the coffee machine.

The utility model discloses a battery-grade manganous-manganic oxide preparation system which comprises a reaction kettle as well as a first storage tank, a second storage tank and a third storage tank which are connected with a feeding hole of the reaction kettle, the first storage tank is used for storing a slow-release agent, and a first feeding pump is arranged on a conveying pipe, connected with the reaction kettle, of the first storage tank; the second storage tank is used for storing a manganese sulfate solution; a second feeding pump is arranged on a conveying pipe for connecting the second storage tank and the reaction kettle; the third storage tank is used for storing alkali liquor, and a first feeding pump is arranged on a conveying pipe, connected with the reaction kettle, of the third storage tank; the reaction kettle is also connected with an oxidizing agent conveying pipe; a control valve is arranged on the oxidizing agent conveying pipe; a sampling port is formed in the reaction kettle and is connected with the particle size analyzer and the pH monitor respectively; a discharge hole is formed in the bottom of the reaction kettle. According to the utility model, the battery-grade manganous-manganic oxide product with higher purity and better performance can be obtained while the particle size is controlled.

The invention relates to a saline-alkali soil water collection irrigation and drainage dual-purpose ditch which comprises a plurality of water collection ditches. The bracket is detachably connected to the top of the water collecting ditch and is formed by splicing a plurality of sections; the rainwater collecting irrigation mechanism comprises a rainwater collecting assembly, a first-stage irrigation assembly and a second-stage irrigation assembly, and the rainwater collecting irrigation mechanism has a rainwater collecting mode, a natural irrigation mode and a strong irrigation mode; in rainy days, the rainwater collecting irrigation mechanism is in a rainwater collecting mode, and the rainwater collecting assembly is started to collect rainwater into the water collecting ditch; when the water in the water collecting ditch is sufficient, the rainwater collecting irrigation mechanism can be in a natural irrigation mode, and the first-stage irrigation assembly is started; when the rainwater collecting irrigation mechanism is in a strong irrigation mode, the secondary irrigation assembly is started, anti-seepage cloth is laid on the inner wall of the water collecting ditch, concealed pipes are buried below the bottom wall of the water collecting ditch, and the anti-seepage cloth is located above the concealed pipes. The system can realize collection, storage and utilization of rainwater, provides necessary fresh water resources for improvement of the saline-alkali soil, is combined with the concealed pipes, does not affect drainage, and has double effects of water collection irrigation and salt drainage.

The utility model discloses a water conservancy project gate water purification device, relates to water conservancy gate technical field, including gate frame, interception subassembly and filter screen, the inside of gate frame is provided with gate main part, and the interception subassembly is installed in the front of gate frame, the interception subassembly includes interception screen frame, locking bolt and interception screen, locking bolts penetrate through the upper sides of the intercepting net frames, a blocking net is fixed between the intercepting net frames, the blocking net is of an arc-shaped structure, rear side plates are fixed to the rear side of the gate frame, a filter screen is installed between the rear side plates, and a trash removal assembly is installed above the outer side of the filter screen. According to the gate water purifying device for the water conservancy project, the blocking net is of an arc-shaped structure, compared with a plane-shaped structure, the available water filtering area is larger, the blocking net can conveniently intercept garbage and impurity dirt passing through the gate body, the filtering net can conveniently intercept impurities passing through the gate body again, pollutants are prevented from passing through, and therefore the multi-layer water purifying effect is achieved.

The invention discloses a screw assembling device for an automatic battery stack production line, which comprises a shell and is characterized in that an X-axis locking air cylinder distributed along the Y-axis direction is arranged in the shell, an X-axis locking pin is arranged at the working end of the X-axis locking air cylinder, an X-axis supporting plate is arranged in the shell, an X-axis locking pin is arranged at the working end of the X-axis locking air cylinder, and an X-axis locking pin is arranged at the working end of the X-axis supporting plate. An X-axis moving frame is connected to the X-axis supporting plate in a sliding mode through an X-axis sliding rail and sliding block mechanism, the X-axis moving frame is composed of an X-axis plate and a Y-axis plate which are connected with each other and perpendicularly distributed, a first positioning hole is formed in the X-axis plate, the X-axis locking pin is matched with the first positioning hole, and the Y-axis locking pin is matched with the Y-axis plate. The Y-axis plate is slidably connected with the Y-axis moving frame through a Y-axis sliding rail and sliding block mechanism, a Y-axis locking air cylinder distributed in the X-axis direction is arranged on the Y-axis moving frame, a Y-axis locking pin is arranged at the working end of the Y-axis locking air cylinder, and second positioning holes matched with the Y-axis locking pin are formed in the Y-axis moving frame and the Y-axis plate.