105results about How to "Act as a clamp" patented technology

The invention provides a cable-stayed bridge cable, which comprises a driving module 1, a driven module 2, a detection module 3 and a power-off protection module 4, wherein the driving module 1 takes a driving frame 5 as a mounting platform; the driven module 2 takes a driven frame 27 as a mounting platform; the detection module 3 takes a camera support frame 53 as a mounting platform; the power-off protection module 4 takes a mounting frame 56 as a mounting carrier; the driving frame 5 is connected with the driven frame 27 through connecting yokes 44 and connecting bars 45; the detection module 3 is connected with the driving frame 5 and the driven frame 27 respectively through the camera support frame 53; the power-off protection module 4 is connected with the driving frame 5 through the mounting frame 56. When an electromagnetic clutch is cut off, an electromagnet works to drive a brake band to enclasp a brake wheel, so that the robot is prevented from slipping off; and a clamping way is simple and practicable.

The invention relates to an inside-pipe flexible mobile micro robot system. A pneumatic moving mechanism of the robot system is formed by the connection of a front supporting unit, a rear supporting unit and a rubber driver; the front supporting unit and the rear supporting unit are hollow cylinders, the end surface of one end of each supporting unit is internally connected with a round ring with a strap; two round rings with straps are respectively connected with two ends of the rubber driver; the cylinders are completely and externally covered with airtight plastic film airbags; the front supporting unit and the rear supporting unit are respectively connected with an air pipe which is communicated with a ventilation circuit; an air pressure transfer system is formed by the serial connection of a high-pressure pump, a pressure storage tank, a ball valve, a flow control valve, a pressure regulating valve and the pneumatic moving system; three ventilation pipelines are connected in parallel between the flow control valve and the pneumatic moving mechanism; two ventilation pipelines are connected in parallel between the pressure regulating valve and the pneumatic moving mechanism; and each ventilation pipeline is connected in series with a normal-closed two-position two-way electromagnetic valve and a two-position three-way electromagnetic valve, and is respectively communicated with three air chambers of the driver and the film airbags of the front supporting unit and the rear supporting unit. The invention can achieve driving in three directions, is safe and flexible, and has accurate control without damaging the inner walls of the pipelines.

The invention discloses a resin pressing curved surface numerical control machining clamp for performing precision forging on a blade tenon root. A clamp box cover is connected with a clamp box body through an eccentric pin shaft; parts of the clamp box body and the clamp box cover, which are contacted with a blade back, a blade basin and the tenon root, are made of resin materials, so that a blade can bear impact and vibration which are caused by a cutting force of a cutter during machining, and the blade can be machined stably and is deformed difficultly; and the positioning precision is improved. According to the clamp, the efficiency of machining an aircraft engine blade is improved, and the machining precision of the clamp can be improved, so that the problem about clamping during blade tenon root precision forging is solved. The clamp has a simple structure and is convenient to mount and high in positioning precision; and the clamp can be assembled and disassembled frequently without influencing the positioning precision. The clamp is used for machining the tenon root of the aircraft engine blade and tenon roots of similar thin wall blades, such as a working blade of a gas turbine, a guide blade and the like.

The invention discloses an imbricate solar photovoltaic module and protection equipment thereof. The photovoltaic module comprises one or more solar cell strings and bypass leads, wherein the bypass leads are arranged along length directions of the cell strings and are arranged between adjacent solar cell strings or at an outer side of the solar cell string at an edge of the module, the solar cell strings are connected to form parallel connection by electrode leads and the bypass leads, and end parts of the bypass lead are connected with bypass convergence bars at end parts of the solar cell strings. A bypass current is shared by a plurality of bypass leads, and the heat generation quantity is reduced.

The invention belongs to the field of workpiece clamping devices, and particularly relates to a gear shaping clamp for a flange of a transmission. The gear shaping clamp comprises a positioning disc,and further comprises a clamping device; a positioning spigot is formed in the positioning disc; the clamping device comprises pressing blocks and two fixing rods, wherein the pressing blocks are arranged on the positioning disk in a sliding mode; transverse channels and vertical channels are formed in the pressing blocks; transverse wedge rods are arranged in the transverse channels in a slidingmode and are connected to the inner walls of the pressing blocks through springs; the ends, close to the positioning spigot, of the transverse wedge rods extend out of the pressing blocks; the vertical channels communicate with the outside; vertical wedge rods are arranged in the vertical channels in a sliding mode and abut against the transverse wedge rods; sliding grooves allowing the two fixingrods to slide are formed in the positioning disc; connecting rods are hinged to the middles of the two fixing rods; the free ends of the two connecting rods are hinged; and the vertical wedge rods are used for pushing the hinged joint of the two connecting rods to move. According to the gear shaping clamp, the problem that the flange of the transmission can rotate along with a hobbing device in the gear hobbing machining process can be solved, and the gear shaping clamp is commonly used for fixing the flange plate in the machining process.

A self-adaptation stepping type angular displacement piezoelectric actuator comprises a circumferential rail base, a precision bearing, a self-adaptation adjusting arm, a first piezoelectric ceramic driver and a second piezoelectric ceramic driver. The precision bearing is arranged in a central hole of the circumferential rail base, the first piezoelectric ceramic driver is arranged in the self-adaptation adjusting arm and used for clamping, and the second piezoelectric ceramic driver is arranged in the self-adaptation adjusting arm and used for driving. A right-angle arm is fixedly connected with a flexible hinge in the self-adaptation adjusting arm and the output end of a second piezoelectric stack, one end of an output shaft is fixed to an inner ring of the precision bearing, and the other end of the output shaft is fixed to the central hole of the self-adaptation adjusting arm. Linear displacement can be converted into angular displacement by adopting only two piezoelectric stacks, meanwhile, the two piezoelectric ceramic drivers are coordinated to move according to a certain rule and rotate in a stepping mode, therefore, the aim of outputting large-travel angular displacement is achieved, clockwise rotation and anticlockwise rotation can be achieved, and structural complexity is reduced greatly. In addition, the inner size can be adjusted in a self-adaptation mode under the condition of machining errors through the self-adaptation adjusting structure.

The invention discloses a device for cutting cylindrical vegetable. The device comprises a bottom plate, wherein a first chute and a second chute are symmetrically formed in the bottom plate; a first supporting leg is arranged at the right half part of the upper surface of the bottom plate, and a second supporting leg is arranged at the left half part of the upper surface of the bottom plate; a lower cutting die set is mounted at the upper ends of the first supporting leg and the second supporting leg; a positioning die set is arranged in the middle part of the upper surface of the bottom plate; a cutter is driven by the lower cutting die set to downwards cut the vegetable; the vegetable to be cut is positioned through the positioning die set. The device has the advantages of being high in safety, time saving, force saving, and high in generality.

The invention discloses a water belt connecting port automatic dropping device and relates to the technical field of fire fighting equipment. The water belt connecting port automatic dropping device includes a quick connection sleeve. The top and the bottom of the quick connection sleeve are fixedly connected with a push-and-pull electromagnet, the surface of the push-and-pull electromagnet is sleeved with an electromagnetic push rod sleeve, the right end of the quick connection sleeve is fixedly connected with the left side of a dropping sleeve through a fixing pipe, the right side of the dropping sleeve is fixedly connected with the left end of a first conduit, and the right end of the first conduit is movably connected with the left end of the second conduit through a connecting pipe. According to the water belt connecting port automatic dropping device, by arrangement of the quick connection sleeve, the push-and-pull electromagnet and the electromagnetic push rod sleeve, through adirect current voltage, an electromagnetic push rod is ejected and the dropping sleeve is pushed, the dropping sleeve has an effect of separating a water belt female connecting port, an internal thread is connected with a breech assembly, so that the push-and-pull electromagnet can be kept at a horizontal position, the safety operation of the water belt connecting port automatic dropping device isensured, and it is effectively ensured that a water belt runs stably and water is conveyed smoothly.

The invention belongs to the field of automobile interior decoration machining, and particularly discloses a washing device for automobile decoration panel production. The washing device comprises a rack, a conveying belt is arranged on the rack, a spraying pipe and an air spraying pipe are distributed at the positions, above the conveying belt, on the rack in the conveying direction of the conveying belt, a washing overturning mechanism is arranged at the position, below the spraying pipe, on the rack, an air spraying overturning mechanism is arranged below the air spraying pipe, the washingoverturning mechanism and the air spraying overturning mechanism are arranged below the conveying belt, the conveying belt is provided with a strip-shaped hole extending in the conveying direction ofthe conveying belt, and the washing overturning mechanism and the air spraying overturning mechanism can both penetrate the strip-shaped hole. By means of the washing device for automobile decorationpanel production, manual face overturning of samples is not needed, and the sample washing efficiency can be improved.

The invention relates to the technical field of valve machining, and discloses a valve machining method stable to use. A workbench is involved. A positioning plate, a positioning block, a hinge ball,an adjusting rod and a clamping plate are arranged to be used in cooperation, a clamping effect is achieved on a valve in the using process, the problem that displacement is caused in the machining process and affects the machining quality of the valve in the machining process is avoided, a user can conveniently adjust the adjusting rod through the hinge ball, and practicability is effectively improved. A fixing base, a fixing column, a connection plate and a limiting base are arranged to be used in cooperation, a buffer effect can be achieved when a placing stable is subjected to force, acting force to the workbench and the placing table is reduced, the machining quality of the valve is prevented from being affected, the valve machining efficiency is ensured, and the practicability is greatly improved.

The invention discloses an agricultural tree planting device with good fixing and supporting conveniences, comprising a first support rod, a second support rod, a lift ring, a positioning device, clamp blocks and a motor. A fixed pulley is arranged at the top of each of the first support rod and the second support rod; the lower end of the second support rod is connected with a fixed bottom plate;the top of the lift ring is connected with a pull rope; the pull rope is connected with a winding drum through the fixed pulleys; the positioning device is welded on the left of the fixed bottom plate; a slide groove is arranged in each side of the positioning device; the clamp blocks are arranged in the slide grooves through compression springs; an anti-collision plate is arranged between the clamp blocks; the motor is connected with the winding drum through a reducer; the motor is electrically connected with a button switch at the top of the push rod. The agricultural tree planting device with good fixing and supporting conveniences allows trees to be moved and planted conveniently, allows users to plant trees conveniently, and is easy for planters to use.

The invention discloses an automatic proportioning pump. A water inlet is formed in one side of the outer wall of a pump body, a water outlet is formed in the other side of the outer wall of the pumpbody, the water inlet is connected with an inner cavity in the pump body, the water outlet is connected with an outer cavity in the pump body, a piston is sleeved with the inner cavity, sealing ringsare arranged on the end walls of the upper and lower ends of a piston cavity, a piston rod and an ejection rod are arranged in the piston cavity, a pressing rod is arranged at the bottom, a sealing pressing head is arranged at the bottom end of the pressing rod, the ejection rod inside the piston cavity is in transmission connection with the pressing rod at the bottom, a top cover is in screw connection at the top of the pump body, a through hole is formed in the middle portion of the top cover, a transmission rod is sleeved with the through hole, a gland is arranged at the top end of the transmission rod, a bottom cover is installed into the bottom of the pump body in a screwed manner, a sleeve hole is formed in the center position of the bottom of the bottom cover, and an additive inletpipe is sleeved with the bottom cover. According to the automatic proportioning pump, a combined mode is adopted, maintenance and replacement in the future are facilitated; and compared with the priorart, the automatic proportioning pump is high in practicability, safe, reliable, convenient and quick.

The invention discloses a serial port network switch based on a logic switch, and the switch comprises a switch body, an external connection plate, a shielding mechanism, a clamping mechanism and a rotating mechanism; a plurality of network card interfaces are formed in the front face of the switch body at equal intervals, a top plate is assembled above the switch body, and the external connection plate is fixedly connected to the front face of the switch body; the shielding mechanism is arranged at the joint of the network card interface and the external connection plate, the positioning mechanism is arranged at the joint of the protection block and the switch body, the clamping mechanism is arranged in the switch body, and the rotating mechanism is arranged at the bottom end of the protection block. The beneficial effects of the invention are that the design of the shielding mechanism is utilized, and the shielding mechanism can play a role in shielding and protecting the network card interface, so that electrical components in the network card interface of the switch body are not exposed in an external environment, dust in the external environment is prevented from entering the network card interface, and a copper wire in the network card interface is covered.

The invention discloses a fire rescue device for a high-rise building, and belongs to the technical field of building fire-fighting equipment. According to the technical scheme, the fire rescue device for the high-rise building comprises a guide rail arranged on the roof of the high-rise building. The fire rescue device for the high-rise building has the beneficial effects that when fire occurs in one floor, personnel above the fire scene fast escape to the roof, a motor A is started, a sliding block is moved to the side turning the back to the fire scene, the personnel are prevented from being burnt by the fire when escaping, and the personal safety of the escaping personnel is protected; a vertical frame is arranged at one end of the sliding block, a support can be placed down or folded and can serve as a balance weight for preventing the sliding block from turning laterally and providing reliable guarantee for safety rescue, one end of the support is hinged to the sliding block, the other end of the support extends out of the outer end of the floor, a box body is moved to the outer side of a building wall, a basket is prevented from colliding with the wall and injuring personnel because a steel wire rope lifts the basket, and the box body is provided with fixed pulleys so that the phenomenon that the steel wire rope is knotted and twisted and cannot descend stable can be prevented.

The invention provides a cable-stayed bridge cable, which comprises a driving module 1, a driven module 2, a detection module 3 and a power-off protection module 4, wherein the driving module 1 takes a driving frame 5 as a mounting platform; the driven module 2 takes a driven frame 27 as a mounting platform; the detection module 3 takes a camera support frame 53 as a mounting platform; the power-off protection module 4 takes a mounting frame 56 as a mounting carrier; the driving frame 5 is connected with the driven frame 27 through connecting yokes 44 and connecting bars 45; the detection module 3 is connected with the driving frame 5 and the driven frame 27 respectively through the camera support frame 53; the power-off protection module 4 is connected with the driving frame 5 through the mounting frame 56. When an electromagnetic clutch is cut off, an electromagnet works to drive a brake band to enclasp a brake wheel, so that the robot is prevented from slipping off; and a clamping way is simple and practicable.

The invention discloses a defecation nursing device. The defecation nursing device comprises a medicine injection base, an adjusting rod, a fixed pillar and an extension pillar; a first through grooveis formed in the fixed pillar, an opening is formed in the side, on the outer side wall of the fixed pillar, of the bottom of the first through groove, a first reflector is aslant arranged at the portion, at the bottom inside the first through groove, of the opening, the extension pillar is inserted in the first through groove, and the top of the extension pillar extends to the outer side of thefixed pillar. According to the defecation nursing device, the top of a medicine injection tube sleeving the outer side of a medicine guide tube is arranged to be in the shape of the spherical surface,and a second reset spring is arranged between the medicine injection tube and the medicine injection base; in the using process, through squeezing force generated by the second reset spring, the medicine injection tube is popped up on the condition that communication between the medicine injection tube and the medicine guide tube is not influenced, and inserted into the anus of a patient for medicine feeding; through the top with the shape of the spherical surface, the anus of the patient is prevented from being injured, and the safety of medicine feeding to the anus is improved; meanwhile, the retractable medicine injection tube can extend to the outer side of a plugging head only at the anus position, and determination of the anus position is facilitated.

The invention relates to a split charging device, and particularly relates to a quantitative split charging device for bulk flour. The quantitative split charging device for the bulk flour can reduce the working intensity of workers and improve the working progress. The quantitative split charging device for the bulk flour comprises a bottom frame, a material storage barrel, a stirring mechanism, a rotating mechanism, a pouring mechanism and a quantifying mechanism, wherein the material storage barrel is arranged on the bottom frame; the stirring mechanism is arranged in the material storage barrel; the rotating mechanism is arranged in the middle of the bottom frame; the pouring mechanism is arranged on the rotating mechanism; and the quantifying mechanism is arranged on the pouring mechanism. According to the quantitative split charging device for the bulk flour, an electric rotating shaft rotates to drive a flow limiting seat to rotate, so that a stirring paddle is driven to rotate, the stirring paddle can stir the flour, the flour can be pushed into small holes and can fall into the quantifying mechanism, and the stirring effect is achieved.

The invention discloses a space adjustable crop laying device. The device comprises a casing, wherein a box door is movably connected with the left side on the front surface of the casing through a hinge; a first handle is fixedly connected with the right side on the front surface of the box door; a transmission box is fixedly connected with the right side of the casing; a baffle is glidingly connected with the left side of the inner wall of the casing; a connecting rod is fixedly connected with the right side of the baffle. The device solves the problems that the inner space of the conventional laying device cannot be adjusted and crops are inconvenient to store because the sizes of the crops are different through matching among the connecting rod, a cross bar, an inner fluted disc, a second handle, a rotating disc, a movable column, a framework, a sliding rod, a sleeve, a first fixed block, a supporting rod and a second fixed block, has the advantage that the size of the space is adjustable, is convenient for users to use, and improves the practicability.

The invention discloses a valve flange surface grinding device which comprises a base, a rotating motor is fixedly arranged at the bottom of the base, an output shaft of the rotating motor upwards penetrates out of the base, a rotating clamping device is fixedly arranged at the top end of the output shaft of the rotating motor, and the rotating clamping device is sleeved with a rotating ring. A chip collecting groove is formed in the rotating ring, an annular collecting groove matched with the rotating ring is formed in the lower side of the rotating ring in the base, the bottom of the annular collecting groove communicates with a chip removal pipe, an air extracting pump is fixedly arranged on one side of the rotating motor on the base, the air inlet end of the air extracting pump communicates with an air inlet pipe, and the chip removal pipe communicates with the air inlet pipe; a collecting box is fixedly arranged on one side of the air extracting pump on the lower portion of the base, the side, close to the air extracting pump, of the collecting box communicates with an air outlet pipe, and the air extracting pump communicates with the collecting box through the air outlet pipe. The grinding disc is arranged to grind the flange.

The present invention relates to a lightningproof anti-ice-flashover composite insulator for a 500kV line, which is characterized in that the composite insulator successively comprises an upper unit part, an upper grading ring, a lower unit part and a lower grading ring from top to bottom. The upper grading ring is mounted on an upper end of the lower unit part; the lower grading ring is mounted on a lower end of the lower unit part; the upper unit part comprises a lightning arrester and a first sub-insulator in parallel; the lower unit part comprises a second sub-insulator and a third sub-insulator in parallel; an upper end of the second sub-insulator is connected with a lower end of the first sub-insulator; and an upper end of the third sub-insulator is connected with a lower end of thelightning arrester. The composite insulator improves the lightning protection and anti-ice-flashover capability of the 500kV composite insulator.

The invention belongs to the technical field of switching power supplies, and relates to a multi-machine parallel current sharing circuit and a digital control switching power supply. The multi-machine parallel current sharing circuit comprises a first differential mode amplifier circuit, a parallel operation current sharing bus circuit, a protection circuit, a second differential mode amplifier circuit, an RC filter circuit and a processor. The first differential mode amplifier circuit is electrically connected with the parallel operation current sharing bus circuit, the first differential mode amplifier circuit is also electrically connected with the second differential mode amplifier circuit, and the parallel operation current sharing bus circuit is electrically connected with the protection circuit. The parallel operation current sharing bus circuit is also connected with the processor, the second differential mode amplifier circuit is electrically connected with the RC filter circuit, and the RC filter circuit is electrically connected with the processor. The multi-machine parallel current sharing circuit has the advantages of high universality, low cost and the like.

The invention provides a displacement control unit device. The displacement control unit device comprises a deformation actuating part and a driving deformation structure. The displacement control unit device adopts any one of the following modes that a passing hole and an opening and closing groove are formed in the deformation actuating piece; the passing hole extends in the axial direction of the deformation actuating piece, and the multiple opening and closing grooves comprise clamping grooves and driving grooves; the driving deformation structure drives the two groove wall surfaces of theopening and closing groove to get close to each other and / or get away from each other; or under the driving action of the driving deformation structure, a pair of deformation actuating parts can be driven or clamped by utilizing the characteristic of telescopic deformation of a structure formed by the plurality of deformation actuating parts. The invention further provides a functional platform system comprising the displacement control unit device. The device is simple in structure and few in component parts, the clamping part can play a role of clamping while the action of the moving part is realized by controlling the electromagnet, so that the device has good movement guidance and continuity and is suitable for different movement occasions.

The invention discloses a surface smoothness detection device for flange processing, comprising a base, a rotating motor is fixedly arranged on the bottom of the base, the output shaft of the rotating motor penetrates the base upwards, and the output shaft of the rotating motor The top end is fixed with a rotating clamping device, and the rotating clamping device is provided with a rotating ring, and the rotating ring is provided with a chip collection groove, and the lower side of the rotating ring in the base is provided with a matching annular collecting groove, so The bottom of the annular collection tank is connected with a chip removal pipe, and an air pump is fixedly installed on one side of the rotating motor on the base. One side of the air suction pump at the bottom of the base is fixedly provided with a collection box, and the side of the collection box close to the air suction pump is connected with an air outlet pipe, and the air suction pump communicates with the collection box through the air outlet pipe. The present invention is provided with a correction support disc to grind the flange.

The invention relates to a dispensing device with a positioning component. The dispensing device includes a mounting base, a dispensing component, the positioning component and a glue receiving component. The dispensing component is installed on the mounting base, the positioning component is installed on the mounting base, and the glue receiving component is installed on the mounting base. According to the dispensing device with the positioning component provided by the invention, the mounting base, the dispensing component, the positioning component and the glue receiving component are disposed to replace the traditional manual dispensing way, the dispensing component can realize mechanical automatic dispensing to workpieces, thereby improving the dispensing efficiency and reducing the labor cost, the positioning component can have a clamping effect on workpieces, the dispensing component can improve the dispensing accuracy in a workpiece dispensing process, and the glue receiving component can avoid collecting leaking glue, thereby preventing glue from leaking to the mounting base in the dispensing process, so that the mounting base can be neater, and the glue collected by the glue receiving component can be recycled, thus saving cost.

The invention discloses an automatic cutting device for a square plate section at end of a pipe pile. The automatic cutting device comprises an operation table, wherein a water receiving groove is formed in the middle of the operation table; a supporting column is fixedly arranged in the water receiving groove; a placing table is fixedly arranged at the end, far away from the water receiving groove, of the supporting column; a square plate is arranged on the placing table; clamping devices are arranged on the two sides of the square plate; a limiting baffle is fixedly arranged at one end of the placing table; a cutting device is arranged above the square plate; the cutting device comprises a lifting plate; a double-shaft motor is arranged on one side of the lifting plate; rotating shafts are arranged at the output ends of the double-shaft motor; first gears are fixedly arranged on the rotating shafts; second gears are arranged below the first gears; and the first gears are connected with the second gears through racks. The automatic cutting device has the beneficial effects that the device is simple in structure and convenient to operate and use, the working efficiency is greatly improved, the cost investment is reduced, and the use safety of a cutting blade is improved.

The invention discloses an advertisement putting board capable of folding and unfolding advertisement cloth through wind power, which relates to the technical field of advertisement manufacturing, andsolves the problems that an existing advertisement board is inconvenient to install and carry and extremely easy to blow off by strong wind, so that advertisements cannot be normally put, economic losses are caused, and certain potential safety hazards exist at the same time. The advertisement board capable of winding and unwinding advertising cloth through wind power comprises a supporting frame, a hollow frame, a winding wheel, a guide wheel, propaganda cloth, a first gear, a mounting plate, an unwinding shaft and the like. The hollow frame is fixedly installed at one end of the supportingframe, the winding wheel is installed at one end of the hollow frame in a rotating mode, and the guide wheel is installed at the other end of the hollow frame in a rotating mode. According to the advertisement board, the advertising cloth can be rolled up in time under the strong wind weather condition, the resistance of the advertisement board to strong wind is reduced, then the situation that the advertisement board is blown to be damaged by the strong wind can be reduced, and convenience is provided for re-displaying advertisements after the strong wind.

The invention relates to the field of plastic bags, in particular to a plastic bag and production equipment thereof. The production equipment comprises a support table, a bag body clamping and movingmechanism, a sac bag hot pressing mechanism, an edge cutting mechanism and two bag body edge pressing mechanisms, and is characterized in that the support table is fixedly arranged on the ground; andaccording to the plastic bag and the production equipment thereof, a pushing mechanism plays a role in driving a finished product clamp and a feeding clamp to clamp the plastic bag, drives the edge cutting mechanism and the sac bag hot pressing mechanism to cut the plastic bag up and down and plays a role in driving the bag body edge pressing mechanisms to conduct edge hot pressing on the plasticbag, and the working speed of the pushing mechanism is controlled, so that the machining speed of the plastic bag can be controlled, and the effect of conveniently controlling the machining speed is achieved. Sewage is stored through a water storage bag, when a user throws garbage, the water storage bag is punctured through a tool, the sewage is discharged into a sewer, then the bag is thrown intoan outdoor garbage can, the odor of the garbage is reduced, and through the garbage bag, the sewage is stored by the water storage bag and is prevented from flowing out.

The invention discloses a cooling device for plastic electroplating processing. The cooling device comprises a processing device housing and a circulating water tank, wherein the circulating water tank is located at the position on one side of the processing device housing, an observation window is embedded into the front surface of the circulating water tank, fixing racks are fixedly installed onthe portions, close to the two sides, of the top of the processing device housing respectively, and the inner sides of the fixing racks are connected with a motor support. The end of the motor support is fixedly provided with an electromotor, an output end of the electromotor is connected with a transmission shaft, and the end of the transmission shaft is connected with fan blades. A water inletpipe and a water outlet pipe are connected between the processing device housing and the circulating water tank, the end of the water inlet pipe is connected with a lifting pump, and the lifting pumpis arranged in the circulating water tank. According to the cooling device for plastic electroplating processing, the effects of clamping the water inlet pipe and the water outlet pipe can be achieved, and the effect of cooling the water outlet pipe can be achieved.

The invention discloses a screening device for chemical experiments. The device comprises a base, a first-level screening tray, a second-level screening tray and a third-level screening tray, whereinthe bottom surface of the first-level screening tray is sealed, the bottom ends of the second-level screening tray and the third-level screening tray are open, screens are fixed to the inner walls ofthe second-level screening tray and the third-level screening tray in the circumferential directions respectively, the outer sides of the first-level screening tray, the second-level screening tray and the third-level screening tray are connected with discharging connectors in a sealed mode respectively, the lower ends of the discharging connectors are fixedly connected with discharging ports, theouter edges of the top cover lower end and the upper and lower ends of the first-level screening tray, the second-level screening tray and the third-level screening tray are fixedly connected with connecting trays respectively, locking mechanisms are arranged between each two of the adjacent connecting trays, a protection box is fixedly connected with the middle portion of the bottom surface of the first-level screening tray, a vibration motor is installed in the protection box, counter weights are arranged at the upper and lower ends of the vibration motor respectively, and multiple telescopic springs are fixedly connected between the first-level screening tray outer edge and the base outer edge. By means of the device, the problems are solved that the automation degree and the screeningefficiency of current screening devices for the chemical experiments are low.