40results about How to "Will not affect passing" patented technology

The invention relates to a scraper conveyor, in particular relating to a scraper state detection device of a scraper conveyor. According to the invention, the problems in the prior art that the passing of coals can be influenced the sensor has high possibility of being damaged by the coal flow. The scraper state detection device is a magnetic conductive device mounted in the chute of the scraper conveyor, wherein the chute consists of a left chute edge, a right chute edge and an intermediate chute plate. The magnetic conductive device comprises NdFeB permanent magnets, a magnetic conductive material and a Hall element, wherein two NdFeB permanent magnets are respectively mounted on the planes of the left chute edge and the right chute edge, and are connected with a horizontal magnetic conductive material; lateral magnetic conductive materials connected with the magnetic conductive material are respectively arranged on the side surfaces of the left chute edge and the right chute edge; bottom magnetic conductive materials connected with the lateral magnetic conductive material are arranged on both sides of the intermediate chute plate; two Hall elements are respectively mounted on the upper surfaces of the two bottom magnetic conductive materials through screws; a stainless steel plate is arranged on the upper surfaces of the Hall elements to protect the Hall elements; and the two Hall elements are connected with a synchronous identification system. The scraper state detection device is suitable for protecting the scraper conveyor.

The invention discloses a communication equipment metal shell, which comprises a metal substrate, more than one slit, a plastic support layer and a decorative layer, wherein the more than one slit runs through the metal substrate; the plastic support layer is formed on the inner surface of the metal substrate; the decorative layer is formed on the outer surface of the metal substrate; the communication equipment metal shell is characterized in that the widths of the slits on the outer surface of the metal substrate are 15-500microns; the widths of the slits on the inner surface of the metal substrate are 20-600microns; and the ratio of the widths of the slits on the inner surface of the metal substrate to those on the outer surface of the metal substrate is (1.05-1.5) to 1. The communication equipment metal shell which is relatively small in slit taper and beneficial to passing of an electromagnetic signal, and has an integrated effect in appearance can be provided.

The invention discloses a medical ultrasonic atomizer. The medical ultrasonic atomizer comprises a cup body (1), the top of the cup body (1) is provided with a cup cover (2), the bottom of the cup body (1) is provided with a base (3), the base (3) is internally provided with an ultrasonic generator (4), the ultrasonic generator (4) is connected with a crystal transducer (5), and the cup body (1) is connected with the base (3) through a sound transparent film (6); the side wall of the cup body (1) is connected with a nasal mask (8) through a connecting pipe (7), and the nasal mask (8) is movably connected with the connecting pipe (7); a plurality of layers of desiccants (9) are arranged in the connecting pipe (7), and filtering nets are movably arranged in the middle of each layer of desiccant and at the two ends of each layer of desiccant; a guide plate (10) is arranged in the cup body (1). According to the method, water removal efficiency of a liquid drug is high, and drying agents can be replaced, so that moisture can be avoided from entering the lung.

The invention relates to the technical field of sewage treatment mechanical devices, and discloses a sewage pipeline joint inner wall cleaning device with an environmental protection function. The sewage pipeline joint inner wall cleaning device comprises a shell, a support frame is fixedly connected to the interior of the shell, a rotating shaft is movably connected to the interior of the supportframe, a first rotating disc is fixedly connected to the exterior of the rotating shaft, a conductor is fixedly connected in the first rotating disc, blades are fixedly connected outside the first rotating disc, and a second rotating disc is fixedly connected outside the rotating shaft. Through interaction of all the structures, the inner wall of the joint of a sewage pipeline can be cleaned while the sewage pipeline conveys sewage, dirt is prevented from being deposited at the joint of the sewage pipeline, and the situations that the conveying capacity of the sewage pipeline is reduced due to blockage caused by dirt deposition and water seepage at the pipeline joint pollutes the surrounding soil are avoided; and meanwhile, the working intensity of workers can be reduced, the use of the sewage pipeline cannot be influenced, and thus the device conforms to the concept of environmental protection.

The invention discloses a water conservancy gate safety monitoring device, which comprises a gate, wherein the gate is connected with the ground in a sliding mode, two friction wheels are connected tothe right end face of the gate in a friction mode, the two friction wheels are fixedly connected to a friction shaft, the friction shaft is rotationally connected with the ground, a meshing gear is further fixedly connected to the friction shaft, and the meshing gear meshes with a power gear. The water conservancy gate safety monitoring device has the main effects that when the gate does not playa role in blocking water flow, the safety device does not influence passing of the water flow, when the gate is put down to block the water flow, the device is started, whether the water flow existson the downstream face of the gate or not is monitored, if the water flow exists, the fact indicates that the gate begins to leak water, if slight water leakage occurs, the device gives an alarm for repair, and if water flow is too large and cannot be controlled, the device can replace the gate to play a standby role in intercepting the water flow.

The invention relates to an NOFBX thrust chamber based on a micro-channel regenerative cooling technology. The NOFBX thrust chamber aims to solve the problem that liquid film cooling and regenerative cooling of an existing liquid rocket engine cannot meet the cooling requirement of an NOFBX combustion chamber. The thrust chamber includes a combustion chamber, an injector, an electric spark plug, and a propellant inlet conduit. The combustion chamber comprises an inner shell, an outer shell, a cover plate and an annular blanking cap, the inner shell and the outer shell are coaxially arranged, a first channel is formed between the inner shell and the outer shell, the cover plate is arranged at the front end of the outer shell, and the annular blanking cap is arranged at the rear end of the first channel. The injector comprises an injector main body and an injector core body, an annular groove is formed in the front end face of an annular injection plate of the injector main body, a plurality of direct-current injection holes are formed in the bottom of the groove, and the injector core body is made of a first porous medium material and is arranged in the annular groove. The injector is arranged on the inner side of the front end of the inner shell, a second channel is formed between the injector and the cover plate, and regeneration cooling channel cores made of a second porous medium material are arranged in the first channel and the second channel.

The invention discloses a device for removing PM2.5 particles in automobile exhaust and a use method thereof. The device comprises a pipe, a high-voltage bag, a liquid storage box, a trace booster pump and an electrostatic spraying device. The pipe is provided with a gas inlet and a gas outlet, the gas inlet can be connected with an automobile exhaust emission pipe, and the caliber of the gas inlet is smaller than the inner diameter of the pipe. The gas outlet is connected with the pipe through a screw joint, and can be dismounted freely. A folding type filter membrane and an ash bucket are arranged on the gas outlet. An automobile storage battery can be used for power supply, the voltage is raised to 5 KV to 12 KV through the high-voltage bag, then chitosan aqueous solutions are jet into charged chitosan and other polymer nanofibers / particles by the electrostatic spraying device through electric field force, and therefore the PM2.5 particles, a little heavy metal elements and other harmful substances in the automobile exhaust and are adsorbed, and the aim of purifying the automobile exhaust is achieved.

The invention discloses an automobile overweight detection device for transportation. The automobile overweight detection device comprises a foundation, wherein a mounting groove and a placing grooveare respectively formed in the foundation; the mounting groove is positioned above the placing groove; a bearing plate is mounted in the mounting groove in a sliding manner through using a limiting mechanism; a plurality of second springs are uniformly arranged between the bearing plate and the bottom wall of the mounting groove; an elastic air bag is arranged in the placing groove; a liquid storage groove is formed in the bottom wall of the mounting groove; a piston plate is connected into the liquid storage groove in a sealed and sliding mode; the piston plate and the bearing plate are fixedly connected through using a plurality of connecting rods; a communicating pipe is arranged between the liquid storage groove and the elastic air bag in a communicating mode; and a plurality of intercepting mechanisms are symmetrically installed on the foundation. The automobile overweight detection device can automatically detect and intercept overweight vehicles, is capable of automatic resetting after detection is finished, can continuously detect vehicles through repeated use without affecting passing of normal vehicles, and has good usage effect.

The invention discloses a vehicle overweight detection device for transportation, which comprises a foundation, and the foundation is respectively provided with a mounting groove and a placement groove, and the mounting groove is located above the placement groove, and the mounting groove is slidably installed by a limit mechanism. A load-bearing plate, a plurality of second springs are evenly arranged between the load-bearing plate and the bottom wall of the installation groove, an elastic air bag is arranged in the placement groove, a liquid storage tank is opened on the bottom wall of the installation groove, and the liquid storage tank The inner seal is slidingly connected with a piston plate, and the piston plate and the load-bearing plate are fixedly connected by a plurality of connecting rods. There is a connecting pipe between the liquid storage tank and the elastic air bag, and a plurality of intercepting tubes are symmetrically installed on the foundation. mechanism. The invention can automatically detect and intercept overweight vehicles, and at the same time, it can be automatically reset after the detection is completed, and the vehicle can be continuously detected after repeated use without affecting the passing of normal vehicles, and the use effect is good.

The invention relates to the technical field of traffic appliances, in particular to a traffic light with lifting and convenient maintenance functions. The traffic light comprises a baffle, a mountingrod, an electric telescopic rod, cameras, traffic light boxes, vertical boards, a support board, support rods, a bottom plate and universal wheels. The traffic light boxes are arranged at the mounting rod; the cameras are arranged at the middle parts of the upper end surfaces of the traffic light boxes; the vertical boards are arranged at the left side and right side of the upper end surface of the support board; arc brackets are arranged at the tops of the vertical boards; an active infrared transmitter is arranged at the top of the front end surface of the left vertical board; and an activeinfrared receiver is arranged at the top of the front end surface of the right vertical board. When the traffic light with a fault is repaired, the needed space is small and nearby pedestrians on theroad are protected. Moreover, the manpower is saved; and installation becomes convenient after maintenance completion. Besides, rainwater is prevented from entering the inside of the traffic light box on rainy days; and the probability that the traffic light is damaged by the short-circuit factor caused by the entering rainwater is reduced.

The invention relates to the technical field of water treatment, in particular relates to a repairing system for a water storage river way after raining and a medicine diffusing system, and aims to solve the problem that water quality becomes poor after sewage is merged into river landscape water, and a black odor problem is easy to generate in high-temperature weather. The medicine diffusing system includes a medicine adding tube arranged close to a riverbed, and the medicine adding tube has a medicine inlet for communicating with a medicine supply device and a medicine outlet for applying amedicine to the river way. According to the medicine diffusing system provided by the invention, the medicine adding tube is arranged close to the riverbed, so that impact of a water flow on the medicine adding tube can be reduced to prolong service life of the medicine adding tube, and at the same time passage of ships on the river way is not affected; and the medicine is ejected through the medicine outlet arranged in the medicine adding tube to perform in-situ remediation on contaminated river areas, and compared with an ex-situ treatment technology that a water body needs to be transferredto a treatment facility, the in-situ remediation reduces labor intensity and costs, and improves working efficiency.

The invention discloses a rail device with a material positioning mechanism. The rail device comprises a rail base, and a rail groove used for accommodating a material is arranged in the rail base. The rail device is characterized in that active roller mechanisms capable of stopping the material from moving forward in the rail groove are arranged on the rail base. The rail device provided by the invention aims to overcome defects in the prior art, and is simple in structure, convenient to use and mount, and good in positioning effect. By adoption of the rail device, the material can be prevented from being scratched, and the impact on the passing of follow-up materials through the rail device can be avoided.

The invention relates to a composite electrode of a vanadium battery, particularly to a preparation method for a sulfonated graphene / manganese dioxide / poly(3, 4-ethylenedioxythiophene)-polystyrene sulfonic acid three-phase composite electrode used for a multilayered ionic membrane composite electrode vanadium battery. The invention relates to the multilayered ionic membrane composite electrode vanadium battery, wherein the vanadium battery comprises an electrolyte and an ionic membrane arranged in the electrolyte; electrodes are arranged on the two sides of the ionic membrane respectively, and the bottoms of the electrodes are inserted into the electrolyte; the ionic membrane adopts a multilayered material; the electrolyte is a V(III) / V(IV) sulfuric acid solution system mixed electrolyte comprising an additive; and the electrodes are graphene composite electrodes. The multilayered ionic membrane composite electrode vanadium battery provided by the invention has the characteristics of relatively low vanadium ion crystallizing rate, relatively low vanadium ion permeability, long service life, and safety and stability in use.

The invention discloses a dam. The dam comprises dam bodies built on the two sides of a river bank, one or more extending parts are arranged on each dam body side by side, a gap cavity is formed between every two adjacent extending parts, one or more rotating cavities are formed in the face, facing a river channel, of each dam body side by side, and a sealing baffle is hinged to the interior of each rotating cavity. Each gap cavity corresponds to one sealing baffle, a protruding part is arranged on the face, deviating from the riverway, of each sealing baffle, a planting cavity is formed in the face, extending towards the interior of the corresponding sealing baffle, of each sealing baffle along the corresponding protruding part, crops are planted in the planting cavities, and buoyancy pieces are embedded in the sealing baffles. Plants are arranged on the sealing baffle, and the sealing baffle extends towards a river channel, so that the space on a river bank is not occupied, meanwhile, the dam does not block sight or block airflow, the influence on the life of people is reduced as much as possible, and meanwhile, the flood prevention effect in heavy rainfall can be guaranteed.

The invention relates to a grate preventing water drops from leaking down. The grate mainly aims to solve the technical problem that when multiple existing grates are stacked in use, the water drops generated in the food steaming process can drip down to the lower layer, food on the lower layer is soaked, and the appearance and taste of the food are influenced. According to the technical scheme, the grate preventing the water drops from leaking down comprises a grate body, wherein a plurality of parallel diversion trenches are uniformly formed in the upper end face of the grate body, an arch structure is arranged between every two diversion trenches, a plurality of steam holes penetrating through the arc structures are formed in the upper portions of the arch structures, and diversion gapsare formed in junctions between the two ends of the diversion trenches and the periphery of the grate body. According to the grate, the oblique diversion trenches are formed in the upper end face ofthe grate body, the diversion gaps are formed in the two ends of each diversion trench, therefore, accumulated water generated by steam condensation flows down along the diversion gaps in the periphery of the grate body through the diversion trenches, and the situation that the accumulated water directly drips down to the lower layer and soaks the food on the lower layer is prevented.

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment device capable of preventing blockage and automatically adding chemicals, which comprises a collecting box, a filter cartridge is fixedly connected to the top of the collecting box, and a movable wheel is rotatably connected to the interior of the filter cartridge; six annularly-arranged inner cavities and six annularly-arranged chemical outlet holes are formed in the side wall of the movable wheel, movable rods are inserted into the opposite sides of the inner cavities, water baffles are fixedlyconnected to the sides, opposite to each other, of the movable rods, and six annularly-arranged filter plates are fixedly connected to the outer portion of the movable wheel. After the filter platesare blocked, when sewage on the filter plates is gathered to a certain degree, the movable wheels are driven to rotate by 60 degrees clockwise, so that the next filter plate rotates to the position tocontinue to filter the sewage, and the process is repeated until the blocked filter plates rotate to the position below the filter cartridge; and blockages on the filter plate fall into the collecting box under the action of gravity, so that the effect of automatically replacing the filter plate when the filter plate is blocked is achieved.

The invention discloses a rail transit shielding door device. The rail transit shielding door device comprises a tempered glass door, a first base is arranged above the tempered glass door, and grooves are formed in the upper portions of the left and right sides of the outer wall of the tempered glass door. The rail transit shielding door device is convenient to install, brings convenience to installation for operators, and is high in operation efficiency during installation; through the cooperation of a vertical rod, a U-shaped frame, a driving wheel, a first bolt, a first spring and a firstsupport, the operators can conveniently take down the tempered glass door; the rail transit shielding door device can display advertisements, and does not need to use fixing modes such as glue; posters are convenient to replace, convenience is brought to the operators, and the trouble of cleaning the glue is omitted; and through the cooperation of a transverse rod, a second bolt, a second spring and a rubber pipe, a tempered glass plate does not need to be used between two rail transit shielding door devices, pedestrians are blocked through the transverse rod, and the installation cost and theinstallation difficulty are reduced.

The invention discloses a calibration system for dissolved oxygen. The structure of the invention is scientific and reasonable. The air component is connected to the pipeline, the air control component is connected to the detection component, the detection component is connected to the drainage component, and the water control component includes a handwheel valve, a first electric valve and a check valve, which are safe and convenient to use. The calibration system connects each electric valve and dissolved oxygen sensor together to form the entire pipeline system, and the controller controls the closing state of each electric valve to realize the on-off of the water circuit and the gas circuit, so that the dissolved oxygen sensor in the water is used to measure the dissolved oxygen in the water. Content detection, and the use of gas circuit to realize the automatic calibration and testing function of the dissolved oxygen sensor can effectively avoid the cumbersome process of dismantling the dissolved oxygen sensor and sending it back to the laboratory in the past.

The invention relates to an escape self-rescue device of an automobile. The escape self-rescue device of the automobile comprises a hollow operation rod. A fixed seat is arranged at the bottom end of the operation rod; the outer rod wall of the operation rod is sleeved with an operation ring; the operation ring and the operation rod are matched in a threaded mode; a sliding rod is arranged in the axial position inside the operation rod and sleeved with a sealing piece; the sealing piece only can slide up and down along the axis of the sliding rod; the sealing piece and the inner rod wall of the operation rod are in airtight connection through a thread, and the operation rod drives the sealing to move when rotating; a catapulting piece is arranged at the bottom end of the operation rod; supporting strands are arranged in the circumferential direction of the operation ring in an arrayed mode and connected with the operation ring in a coupling mode; and an elastic protecting mesh face is arranged between every two adjacent supporting strands. The self-rescue device is novel and unique in structure, a user does not need to wait for the last minute to conduct self-rescue and can effectively strive for the precious rescue time, and meanwhile can be prevented from being cut and hurt by cullet, so that using is safe and convenient.

The invention belongs to the technical field of roadblock equipment, and provides an efficient interception shallow-buried fixed road pile and an interception method, including two connecting plates, a plurality of road pile units and a plurality of tire breaker units, and the two connecting plates are arranged opposite to each other , a plurality of road pile units are sequentially arranged at intervals between two connecting plates, and the road pile unit includes a slideway, a first baffle, a base, a pile body, a first baffle, a guide cylinder, a first return spring and a guide rod, A plurality of tire breaker units are respectively arranged between any two adjacent pile units, and the tire breaker unit includes a second baffle plate, a mounting plate, a plurality of stop nails, a bottom plate, a second return spring, a top plate, a sliding block, third return spring, locking mechanism and unlocking mechanism. The high-efficiency interception shallow-buried fixed road pile provided by the invention has better interception effect.

The invention discloses a metal shell of communication equipment, which comprises a metal base material, more than one slit penetrating through the metal base material, a plastic supporting layer formed on the inner surface of the metal base material, and a The decorative layer on the outer surface of the metal substrate is characterized in that the width of the slit on the outer surface of the metal substrate is 15-500 μm, and the width of the slit on the inner surface of the metal substrate is The width is 20-600 μm, and the ratio of the width of the slit on the inner surface of the metal substrate to the width of the slit on the outer surface of the metal substrate is 1.05-1.5:1. According to the present invention, it is possible to provide a metal casing of a communication device with a smaller slit taper, which is more conducive to the passage of electromagnetic signals, and has an integrated effect in appearance.

The invention discloses a contact for a high-voltage equipment high-current switch. The contact includes a conductive contact and a base, the three sides of the conductive contact enclose and clamp the base, the conductive contact is fixed to the base via a fixing device, the conductive contact is formed by the laminated bending of a plurality of conductive strips, the front part and the tail parts at the two sides of the conductive contact are in a multi-conductive-strip hot-melting integrated structure, and the middle parts of the two sides of the conductive contact are in a multi-conductive-strip separated structure. The middle parts of the two sides of the conductive contact are in a multi-conductive-strip separated structure, the structure can maintain the characteristics of sheets to take the effect of flexible connection, so that the flexible adjustment and conductivity of the conductive contact can be guaranteed, due to the multi-sheet combination, the passage of high current cannot be influenced, the surface area is increased, and the heat dissipation is improved. The whole structure is simple and the stability is good, the contact is applied to an isolation switch to effectively reduce the temperature rising in the operation of the high-current isolation switch, so that the safety and reliability in the operation of the isolation switch can be improved.

The invention provides a modern intelligent artificial climate chamber for fruit and vegetable seedlings. The modern intelligent artificial climate chamber for fruit and vegetable seedlings comprises a climate chamber body, wherein the top end of an inner cavity of the climate chamber body is uniformly and fixedly connected with supporting frames; the bottoms of the supporting frames are uniformly and fixedly connected with fixing pipes; inner cavities of the fixing pipes are movably connected with the top ends of screw rods; the bottoms of the screw rods extend to the positions below the fixing pipes; power boxes are uniformly embedded in the bottom of the inner cavity of the climate chamber body; the bottom ends of the screw rods are movably connected with the tops of the power boxes; outer rings of the screw rods are in threaded connection with threaded sleeves; the two ends of the threaded sleeves are fixedly connected with fixing sleeves; spraying pipes are fixedly sleeved and connected in inner cavities of the fixing sleeves; spring hoses are uniformly and fixedly connected to the bottoms of the spraying pipes; a sprayer is fixedly connected to the bottom of each spring hose; one side of the spraying pipes is fixedly connected with a water pipe and a liquid fertilizer pipe; in addition, one end of the water pipe and one end of the liquid fertilizer pipe are fixedly connected with an electric control valve; the bottom ends of the supporting frames are uniformly and fixedly connected with first pull ropes; the bottoms of the first pull ropes are fixedly connected with fluorescent lamps; and opening and closing windows are uniformly embedded in the side wall of the climate chamber body.

The invention relates to a scraper conveyor, in particular relating to a scraper state detection device of a scraper conveyor. According to the invention, the problems in the prior art that the passing of coals can be influenced the sensor has high possibility of being damaged by the coal flow. The scraper state detection device is a magnetic conductive device mounted in the chute of the scraper conveyor, wherein the chute consists of a left chute edge, a right chute edge and an intermediate chute plate. The magnetic conductive device comprises NdFeB permanent magnets, a magnetic conductive material and a Hall element, wherein two NdFeB permanent magnets are respectively mounted on the planes of the left chute edge and the right chute edge, and are connected with a horizontal magnetic conductive material; lateral magnetic conductive materials connected with the magnetic conductive material are respectively arranged on the side surfaces of the left chute edge and the right chute edge; bottom magnetic conductive materials connected with the lateral magnetic conductive material are arranged on both sides of the intermediate chute plate; two Hall elements are respectively mounted on the upper surfaces of the two bottom magnetic conductive materials through screws; a stainless steel plate is arranged on the upper surfaces of the Hall elements to protect the Hall elements; and the two Hall elements are connected with a synchronous identification system. The scraper state detection device is suitable for protecting the scraper conveyor.

The invention provides a platform based on agricultural machinery maintenance, which includes a receiving plate, an outer plate, a side piece, a side plate, an inserting plate and a bottom wheel; the main body is a rectangular plate structure, and the bottom of the mounting hole is provided with threads. Furthermore, the inner bottom of the slot is installed with a rubber inner part by bonding, and the upper part of the main body is fixedly connected with the bottom of the electric cylinder; the stopper is made of rubber, and the top part There are side grooves on both sides, and the inside of the side grooves is embedded with a receiving plate; the turning parts here are used to be installed on both ends of the top part, so that the agricultural machine can be fixed by the turning parts when it needs to be repaired , so that the agricultural machinery can be more stable during maintenance, will not slide, and will not cause safety hazards, and the rear end of the turning part is connected to the inner groove through a connecting shaft, so that when the turning part is in use, Can be turned over by spring support.

The invention provides a platform based on agricultural machinery maintenance. The platform comprises a bearing plate, an outer plate, side parts, side plates, inserting plates and base wheels. The main body is of a rectangular plate structure. Threads are arranged inside the bottom of mounting holes. Furthermore, rubber inner parts are mounted inside the bottom end of the inserting grooves in anadhering manner. In addition, the upper portion of the main body is fixedly connected with the bottoms of electric cylinders. Retaining parts are rubber. Side grooves are formed in the two sides of atop part, in addition, the bearing plate is mounted inside the side grooves in an inserted manner. Overturning parts are used for mounting on the two sides of the upper portion of the top part, thus,when an agricultural machine needs to be maintained, the agricultural machine can be fixed through the overturning parts; thus the agricultural machine can be more stably and do not slide; potential safety hazard is not caused; and the back ends of the overturning parts are connected with the inner grooves through connecting shafts, so that the overturning parts can be supported by springs when the overturning parts are used.

The invention relates to an area alert device for mounting of a seawater desalination device. The area alert device comprises a supporting device used for providing supporting, a plurality of rotatingrods sequentially arranged in the set direction are mounted in the supporting device, the upper ends of the rotating rods penetrate out of the supporting device, the rotating rods are vertically arranged and can rotate along the central axes of the rotating rods, and a passage opening is formed between every two adjacent rotating rods; two columns of stopping rods are fixedly arranged on the outer side face of each rotating rod, each column of stopping rods are sequentially arranged in the vertical direction, and the central axes of all the stopping rods in the same rotating rod are located on the same plane; the rotating rods can rotate to drive the stopping rods to get close to or get away from the passage openings so as to open and close the passage openings; and an infrared sensor andan alarm are arranged on the upper part of the supporting device. According to the area alert device, through an alarm device, irrelevant personnel can be reminded to leave, and a stopping device isarranged in the short time to prevent the personnel from getting close to the seawater desalination device.

The invention provides a drag chain structure of a movable workbench. The drag chain structure comprises a drag chain body, a drag chain fixing plate, a jacking device, a supporting base and a supporting frame. The drag chain body is flatly laid on the supporting frame. The supporting frame is installed on the supporting base. The supporting frame is provided with a containing cavity. The jackingdevice comprises an upper jacking plate and a lower jacking plate. The lower jacking plate is in threaded connection with the upper jacking plate. The lower jacking plate extends into the containing cavity. One end of the drag chain body is fixed to one side of the supporting frame through the drag chain fixing plate, and the other end passes through the jacking device and is fixed on the other side of the supporting frame through the drag chain fixing plate. The drag chain flattening device is simple in overall structure and ingenious and reasonable in design, flattening operation can be effectively conducted on the drag chain body, and passing of other machines and equipment in a site is not affected while power supply operation is achieved.

The invention discloses a three phase combination electrode, and belongs to the field of electrode. The three phase combination electrode is composed of sulfonated graphene, manganese dioxide, and manganese dioxide / poly(3,4-ethylenedioxythiophene)-polystyrolsulfon acid. The three phase combination electrode is capable of weakening etching of graphite electrodes, prolonging service life of vanadium cells, and improving application safety of vanadium cells.

The invention discloses a preparation method of a three-phase composite electrode, and relates to the field of an electrode. According to the preparation method, sulfonated graphene, MnO2 and poly(3,4-ethylenedioxythiophene)-polystyrolsulfon acid are used as raw materials, in the prepared three-phase composite electrode, the MnO2 is electroplated on a surface of the sulfonated graphene, and the poly(3,4-ethylenedioxythiophene)-polystyrolsulfon acid is electroplated on a surface of the MnO2. The three-phase composite electrode prepared according to the method of the three-phase composite electrode has the characteristics that the etching phenomenon of a graphite electrode is reduced, the service lifetime of a vanadium battery is prolonged, and the application safety of the vanadium battery is improved.