42results about How to "Improve vacuuming effect" patented technology

The utility model discloses an axial dust collection integrated motorized spindle which comprises a motorized spindle body, the motorized spindle body is provided with a dust collection structure, a fan structure and an automatic tool changing structure, the fan structure comprises a brushless motor and a centrifugal blade assembly, the brushless motor drives the centrifugal blade assembly to rotate to form airflow, and wood chips and dust are sucked and discharged from the dust collection structure; the automatic tool changing structure comprises a lifting air cylinder, the dust collection structure comprises a dust collection cover, and the lifting air cylinder drives the dust collection cover to move axially when the motorized spindle changes tools. The motorized spindle integrates dust collection, cooling and automatic tool changing functions, and the problems that in the prior art, the dust collection effect is poor, energy consumption is high, the occupied space is large, and cost is high are solved.

The utility model relates to the technical field of welding dust removal, in particular to an automobile part welding dust removal device which comprises a base, a body and a fixing assembly, the body is installed on the base, the fixing assembly comprises a supporting cylinder, an adjusting rod, a threaded rod, a limiting ring, an abutting plate, a buffering cushion and a limiting component, and the supporting cylinder is fixedly installed on the side, close to the body, of the base; the adjusting rod is slidably mounted on the side, close to the base, of the supporting cylinder, the threaded rod is rotationally connected with the supporting cylinder, located on the side, away from the adjusting rod, of the supporting cylinder and connected with the adjusting rod, the limiting ring is fixedly connected with the threaded rod and located on the side, away from the adjusting rod, of the threaded rod, and the abutting plate is fixedly connected with the adjusting rod. The adjusting rod is fixedly connected with the supporting cylinder and located on the side, away from the supporting cylinder, of the adjusting rod, the buffering pad is fixedly connected with the abutting plate and located on the side, away from the adjusting rod, of the abutting plate, the limiting component is installed on the supporting cylinder and drives the limiting ring to rotate, the device is prevented from moving in the using process, and the stability of the device is improved.

The utility model discloses a kind of for wind power blade polishing device, it is related to polishing device technical field.The utility model includes placing table, and the placing table provides stable support base for integral equipment, further include polishing mechanism, and the polishing mechanism is set on placing table top.The utility model is through setting dust collection component, specifically in the process of rotating shaft rotation will be through driving gear to drive several driven gears to rotate together, in the process of several driven gears rotation will be through several impellers rotation to produce powerful airflow to make dust hood inside present negative pressure state, at this time dust generated in the process of polishing disc polishing is inhaled into dust hood inside, reduce dust height dispersion, and diffuse in the whole working environment, to reduce the influence to operator's vision, reduce working difficulty and risk, also reduce dust to spread to surrounding environment, reduce the influence to surrounding environment.

The application provides a cover structure of a composite material heat curing device, which comprises a side wall, an upper cover arranged at the top of the side wall, a first rubber plate arranged at the bottom of the side wall, and a closed cavity formed by the upper cover, the side wall and the first rubber plate. A plurality of shunt pipes are arranged in the cavity and connected with air outlets of a hot air machine. The shunt pipes are provided with a plurality of air outlets in communication with the cavity. An air outlet pipe is in communication with the cavity at one end and with the outside at the other end. The cover structure cooperates with a box body of the heat curing device to play the roles of heating and pressing the preform as a negative mold. Compared with the forming mode of rigid negative mold and positive mold cooperation or the mode of vacuum bag film pressing, the cover structure uses a flexible rubber plate as the negative mold, the rubber plate is better in the effect of sticking to the mold after being heated and expanded to press the preform, the preform is more uniform in stress during the curing process, and the internal quality of the product is better. The rubber plate is more versatile in pressing, and the same rubber plate is applicable to the forming of products of different sizes without the need of manufacturing negative molds of different sizes.

The application discloses a dust removal device for electrical engineering and automation. The device comprises a dust suction box and a dust suction component, which are communicated through a dust suction pipe; the dust suction component comprises a shell, a center pipe is arranged in the shell, a second fan driven by a second motor and a center gear are arranged in the center pipe, the center gear is drivingly connected with a reciprocating screw rod through a transmission gear and a transmission component, a reciprocating block is engaged on the reciprocating screw rod, and the reciprocating block is connected with a sponge pad through a connecting rod. The dust suction effect is enhanced through the double-fan structure, the sponge pad is driven to reciprocate through the reciprocating screw rod mechanism, the sponge pad is deformed regularly in the wiping process through cooperation of the elastic arc-shaped plate and the inclined moving groove, effective removal of the adhesive dirt and self-cleaning of the sponge pad are realized; meanwhile, the device can be selected to open or close the wiping function, and can be selected to wipe in a dry or wet manner, so that the cleaning effect and applicability of the dust removal device are remarkably improved.

The utility model relates to PCB board dividing machine technical field discloses a dust extraction of PCB board dividing machine, including machine body and work board, the inner wall fixed connection of machine body has the motor, the inner wall fixed connection of machine body has the support seat, the output of motor penetrates the inside of support seat and is fixed with round plate, the outer wall fixed connection of round plate has transmission rod, the outer wall sliding connection of transmission rod has the cleaning frame, the inside sliding connection of cleaning frame has the fixing frame, the outer wall fixed connection of fixing frame is in the inner wall of machine body, the lower surface fixed connection of cleaning frame has the brush, in the utility model, through the cooperation between motor, support seat, round plate, transmission rod, cleaning frame, fixing frame and brush, the edge of machine body interior is reciprocating cleaning, avoids the influence dust extraction effect because of dust and chippings and is accumulated in the edge, also reduces the abrasion and corrosion of dust or chippings to machine body internal component.

This invention discloses an integrated vacuum system, characterized by: a housing, a first vacuum pump and a second vacuum pump disposed within the housing; the top of the second vacuum pump is connected to the bottom of the first vacuum pump via a mounting plate; a crossbeam is provided on each side of the housing, and the two sides of the first vacuum pump are connected to the crossbeams via support feet; a connection port is provided on the mounting plate, and the air inlet at the top of the second vacuum pump is connected to the air outlet at the bottom of the first vacuum pump via the connection port. This invention improves the convenience of installation and debugging, and also improves the vacuum effect.

The invention discloses an arbitrarily-turning door-free unloading material distribution vehicle with a dust removal track, which comprises a material distribution bin, a material distribution cylinder is rotatably arranged in the material distribution bin, a shaft rod on the material distribution cylinder is connected with a first motor, the material distribution bin is respectively provided with a material inlet and a material outlet, a material distribution port matched with the material inlet and the material outlet is arranged in the material distribution cylinder, and the material distribution cylinder is connected with the first motor. A first blanking groove is fixed to the position, below the distributing opening, of the distributing cylinder, blanking plates are arranged on the two sides of the first blanking groove, a second blanking groove is formed between the upper end face of each blanking plate and the distributing cylinder, a third blanking groove is formed between the lower end face of each blanking plate and the bottom of the distributing cylinder, and the first blanking groove is located at the upper end of the distributing cylinder. The second blanking groove is located below the first blanking groove, the third blanking groove is located at the lower end of the second blanking groove, a dust suction opening is formed in the material distribution bin, and a second channel is arranged between the material distribution bin and the material distribution cylinder. Compared with the prior art, the dust collection effect is good, and the environment-friendly production requirement is met; and secondly, the first motor can rotate the material distribution cylinder with a small torque.

The utility model relates to the technical field of asphalt pavement repair, and discloses a crack sealing machine for asphalt pavement repair, which comprises a carrier, the top of the carrier is fixedly provided with a stock bin for storing materials, and the top of the carrier is also fixedly provided with a dust collection box for collecting dust; the air nozzle assembly comprises a main dust collection cover, a lining and an air guide cover, the main dust collection cover is movably arranged on one side of the carrier and can ascend and descend, the lining is elastically connected with the main dust collection cover, the position is adjusted through ascending and descending of the main dust collection cover, and the lining elastically connected with the main dust collection cover can abut against the ground; a relatively sealed environment is formed at the crack position of the asphalt pavement to guarantee negative pressure, particles and dust in the crack are cleaned by cooperating with a dust collection box to exhaust air in the main dust collection cover, a hollow rubber ring is arranged to increase the deformable amplitude of the bottom of a lining, and a spring is matched to push the lining to move downwards to abut against the ground. The bottom of the lining can make full contact with the ground to guarantee sealing performance, and the dust collection effect is improved.

The utility model relates to a welding roll-over stand which comprises a supporting table, the upper end face of the supporting table is fixedly connected with a welding frame, and a dust removal mechanism is arranged in the welding frame. The dust removal mechanism comprises a hollow box, a moving assembly is arranged above the hollow box, the back face of the hollow box is fixedly connected with a communicating cylinder communicating with the interior of the hollow box, the interior of the communicating cylinder is fixedly connected with an air draft fan, and the air outlet end of the air draft fan is provided with a protective net fixedly connected with the interior of the communicating cylinder. A cleaning opening is formed in the back face of the hollow box, and the inner wall of the cleaning opening is sleeved with a sealing plug plate. The welding roll-over stand disclosed by the utility model can be used for treating welding smoke dust rising at a welding part during pipeline welding, so that a large amount of welding smoke dust is prevented from being directly diffused into a working environment without being treated to cause harm to the body of a worker, and the welding roll-over stand is relatively practical.

The application discloses a kind of full-automatic water-cooled plate polishing laser marking device's use method, belong to water-cooled plate processing technical field.A kind of full-automatic water-cooled plate polishing laser marking device, including plane polishing equipment, ash removal equipment and automatic marking equipment, plane polishing equipment, ash removal equipment and automatic marking equipment are sequentially connected, and ash removal equipment is set after plane polishing equipment.The application solves the problem that existing light polishing jig cannot realize the polishing of different water-cooled plates, the application sets up continuous plane polishing equipment and automatic marking equipment station, completes the plane polishing and marking of water-cooled plate, removes dust through ash removal equipment, and has high degree of automation, reaches front blocking mechanism through water-cooled plate, jacking roller descends, water-cooled plate is placed on support platform, side push assembly pushes water-cooled plate to side blocking mechanism, then rotary clamping cylinder presses water-cooled plate, and positioning is accurate.

The utility model provides a kind of Roots vacuum pump and screw vacuum pump series system, including Roots vacuum pump, screw vacuum pump, condenser, first motor, second motor, water storage tank, electric cabinet, first electric control switch valve, second electric control switch valve, third electric control switch valve, electric control three-way valve, liquid level transmitter, pressure transmitter, first check valve and relevant pipeline;First motor is connected with Roots vacuum pump shaft, and second motor is connected with screw vacuum pump shaft;Liquid level transmitter is arranged at the side of water storage tank;Electric cabinet is respectively connected with first motor, second motor, first electric control switch valve, second electric control switch valve, third electric control switch valve, electric control three-way valve, liquid level transmitter, pressure transmitter communication connection.By using Roots vacuum pump and screw vacuum pump in series, the utility model not only can improve the vacuum degree of system and the stability of work and the efficiency of system vacuum extraction, but also can ensure normal work of work object while reducing system energy consumption.

The utility model belongs to silica gel label production technical field, concretely speaking is a kind of silica gel label production defoaming device, including bottom plate, the water tank is fixedly connected in the bottom plate top, the water tank inside is equipped with a plurality of electric heating tube, the water tank side wall is connected with drain pipe, the valve is installed on the drain pipe, the water tank inside is placed with storage barrel, the hydraulic cylinder is installed in the bottom plate top, the hydraulic cylinder top is fixedly connected with fixed plate, the vacuum pump is installed in the fixed plate top, the storage barrel top is connected with bucket cover, the fixed block is installed on the bucket cover, by the above structure, set up water tank and storage barrel and bucket cover, use vacuum pump to generate vacuum effect, can heat the water in water tank by electric heating tube, to make hot water to the silica gel in storage barrel heat softening reduce its viscosity, can make the bubble in silica gel more easily rise to upper layer break, to improve the vacuum defoaming effect of silica gel raw materials.

This invention provides a stainless steel composite plate and its preparation method, belonging to the field of metallurgical process technology. The stainless steel composite plate includes a substrate and a composite material, which are stacked. A plurality of air guide grooves are provided on the side of the substrate facing the composite material. These air guide grooves are areas on the substrate for bonding with the composite material and extend along the length of the substrate. The air guide grooves converge at one end, and a vertical hole is provided on the substrate at the converging end of the air guide grooves, communicating with the air guide grooves through the vertical hole. A horizontal hole is provided on the end face of the substrate, communicating with the vertical hole, and the exposed end of the horizontal hole is adapted to communicate with a vacuum extraction device. By providing air guide grooves on the bonding surface of the substrate for bonding with the composite material, the stainless steel composite plate of this invention can improve the vacuum extraction effect and ensure the vacuum degree between the two plates during vacuum extraction.

The utility model relates to the technical field of bar polishing related equipment, one embodiment of the utility model provides a dust removal device of a polishing machine for bar machining, the dust removal device comprises a frame body, a polishing machine mounting table and a driving lead screw, the driving lead screw is mounted in the frame body, and the polishing machine mounting table is slidably connected in the surface of the frame body; the polishing machine mounting table is connected with the driving lead screw in a threaded fit mode, the transmission groove is formed in the surface of the frame body, the supporting moving assembly is arranged on the transmission groove and the frame body, the dust cleaning assembly is arranged on the frame body and comprises a dust collector, the dust collector is installed at the bottom of the frame body, and an extension pipeline is arranged at the output end of the dust collector. Dust collection covers are arranged at the two ends of the surface of the dust collection box and communicate with the dust collection box, and dust collection holes are formed in the periphery of the inner surface of each dust collection cover. By means of the technical scheme, the technical problems that in the prior art, dust flies onto other devices, abrasion of the devices is accelerated, the precision of the devices is reduced, and the service life of the devices is prolonged are solved.

The utility model relates to a trimming device for edge sealing of a hinge pore plate, which comprises a rack, two groups of profiling trimming mechanisms are arranged on two sides of the rack in a liftable manner, and each group of profiling trimming mechanism comprises a moving seat, a vertical profiling assembly, a horizontal profiling assembly and a scraper assembly, the vertical profiling assembly comprises a vertical profiling plate, a fixed vertical profiling wheel and two sets of lifting vertical profiling wheels, the vertical profiling plate is arranged on the movable base in a lifting mode, the fixed vertical profiling wheel is fixedly arranged on the vertical profiling plate, the two sets of lifting vertical profiling wheels are arranged on the vertical profiling plate in a lifting mode, and the vertical profiling plate is arranged on the movable base in a lifting mode. And the fixed vertical profiling wheels are arranged on the two sides of the fixed vertical profiling wheels. According to the utility model, the two groups of vertical profiling wheels are adjustably arranged on the vertical profiling plate through the sliding blocks, so that the bottoms or the tops of the three groups of vertical profiling wheels are kept on the same horizontal line, and the trimming precision is improved.

This utility model discloses a wall sanding device for architectural decoration engineering, including a base plate, a sanding area moving device, a moving block, a motor, and a sanding head. The sanding area moving device is fixed to the front side of the top of the base plate. This utility model, by setting up a dust suction hood and a telescopic hood, with the motor and sanding head located inside the dust suction hood and telescopic hood, collects dust at the source, greatly reducing the diffusion of dust in the air during sanding. This creates a relatively safe working environment for operators, significantly reducing the risk of dust inhalation and effectively protecting the respiratory health of operators. The dust suction hood and telescopic hood are made of transparent material, allowing operators to easily observe the working status of the sanding head and the dust collection situation in real time during operation, so as to adjust the sanding operation in a timely manner, ensuring sanding quality and dust collection effect. This solves the problem of the lack of equipment safety protection in the application of the aforementioned equipment.

The utility model relates to a cutting device, which comprises a mounting seat, a cutting arm, a cutting knife, a cutting head, a driving device and a driving device, and is characterized in that the mounting seat is provided with the cutting arm; the dust collection box is installed at the end, close to the cutting knife, of the cutting arm, and a plurality of dust collection holes are formed in the outer side of the dust collection box; the negative pressure fan is mounted on the outer side of the mounting seat, and the negative pressure fan is connected to the dust collection box through a pipeline. The dust collection box is arranged at the end, close to the cutting knife, of the cutting arm, negative pressure is generated in the dust collection box through the negative pressure draught fan, so that dust is collected, the dust collection box can swing along with the cutting arm and is close to the cutting knife, the dust collection effect is better, and the dust collection efficiency is improved.

The aluminum ash ball-milling equipment with the good dust collection effect comprises a hopper, a conveying belt and a ball mill, the conveying belt conveys aluminum materials falling from the hopper to the ball mill for ball-milling treatment, the aluminum ash ball-milling equipment further comprises a dust collection fan, a dust collection pipe and at least two steering elbows, the dust collection fan is connected with the dust collection pipe, the dust collection pipe horizontally extends to the upper side of the hopper, and the steering elbows are connected with the conveying belt. The dust collection fan is connected with the top of the hopper in a vertically downward mode after being steered by the first steering elbow and is connected with the top of the hopper in a vertically downward mode after being steered by the second steering elbow, the dust collection fan sucks raised dust in the hopper through the dust collection pipe, the two steering elbows are obtuse-angle steering elbows, and the dust collection pipe is steered by the first steering elbow and then obliquely and downwards extends to the position over the hopper. And the second steering elbow is vertically downwards connected with the top of the hopper. Due to the fact that the portion, close to the top of the hopper, of the dust collection pipe does not adopt a vertical steering elbow with high resistance but adopts an obtuse angle steering elbow with low resistance, dust collection resistance in the dust collection process is remarkably reduced, dust collection efficiency is high, and the dust collection effect is good.

This utility model discloses a robot for applying oil to car sunroof guide rails, relating to the technical field of guide rail oiling equipment. The utility model includes a worktable with two slidably mounted support frames. A clamping mechanism is provided on the worktable for clamping and positioning the car sunroof guide rails. A wobbling mechanism is also provided on the worktable. This utility model cleans the car sunroof guide rails by activating a vacuum cleaner, using a suction nozzle to remove dust from the guide rails. This prevents dust from affecting the oiling effect and quality of the sunroof guide rails, thus improving the practicality of the robot. After cleaning the sunroof guide rails with the suction nozzle, simply activating a second motor rotates the rotating block 180 degrees forward or backward, allowing the soft brush to approach the sunroof guide rails for oiling.

The utility model discloses a kind of plastic braided bag laminating machines, belong to braided bag processing technical field, including support seat, laminating mechanism and dust removal mechanism, the laminating mechanism includes fixedly installed in the laminating box of support seat one side, the inside rotation of laminating box is equipped with two heating laminating roller, the dust removal mechanism includes fixedly installed on the dust collection box of laminating box outer wall, the top of dust collection box is fixedly connected with dust extraction fan, the outlet end of dust extraction fan is fixedly connected with connecting pipe, the both ends of connecting pipe are fixedly connected with dust suction pipe, the dust suction pipe is fixedly penetrated into laminating box, the both sides of dust suction pipe are fixedly connected with dust suction cover;By the setting of dust removal mechanism, when braided bag and film enter laminating box, dust extraction fan can be started, remove the dust attached to the surface of braided bag and film, avoid the influence of laminating effect by dust.

The present application relates to a kind of micro-hole machining center with good dust absorption effect, including base, be equipped with driving mechanism a on base and under the driving of driving mechanism a sliding table, base tail end is equipped with stand, be equipped with driving mechanism b on stand and under the driving of driving mechanism b sliding plate, sliding table is equipped with workbench, sliding plate is equipped with machining mechanism, machining mechanism includes drilling assembly and dust absorption component, the bottom of drilling assembly is equipped with pusher assembly, when drilling assembly is carried out drilling to workpiece placed on workbench, dust absorption component is cleaned to the chip generated, the up-down rotation of flap in dust absorption component is realized by pusher assembly, avoid chip back to fall into micro-hole, folding cover in pusher assembly continuously keep the sealing effect of micro-hole, the sealing effect of existing technology is not good enough, the problem that the dust absorption effect of the deeper micro-hole is not good enough is solved, residual is likely to cause, affect workpiece processing quality, still exist the problem of micro-hole blockage.

The application discloses a power distribution cabinet of an energy storage system and relates to the technical field of power distribution cabinets.The power distribution cabinet comprises a power distribution cabinet body, a waterproof cover is fixedly installed on the top of the power distribution cabinet body, an electric telescopic rod is fixedly installed at one end of the power distribution cabinet body away from the waterproof cover, a base is fixedly installed at the end of the electric telescopic rod away from the power distribution cabinet body, and an elastic assembly is arranged on the power distribution cabinet body.The elastic assembly is inserted into a rectangular through hole through a circuit switch, then the circuit switch is pressed to extrude the mounting plate, the mounting plate is stretched to stretch the first spring, the connecting plate is pressed to extrude the third spring, the circuit switch is pushed, and after being moved to a proper position, the connecting plate is loosened to drive the limiting blocks to move upwards, the two limiting blocks are used for limiting the circuit switch, the circuit switch is convenient to mount and dismount, the mounting stability of the device is improved, and the working efficiency of the device in dismounting and maintenance is improved.

This utility model relates to the field of chemical manufacturing technology and discloses a chemical raw material pulverizer, including a shell. An inlet is provided at the upper part of the inner cavity of the shell. A dust collection chamber is fixedly sleeved on the left side of the shell. A fan is fixedly installed on the left side of the dust collection chamber. A DC power supply is fixedly installed at the upper part of the dust collection chamber. A current valve is fixedly installed on the left side of the DC power supply. Electrode plates are uniformly fixedly installed at the top of the inner cavity of the dust collection chamber. A vibrating motor is installed on the electrode plate. The electrode plate and the current valve are connected by a circuit. A valve is fixedly installed at the bottom of the dust collection chamber. A dust discharge pipe is fixedly installed at the bottom of the valve. A dust collection box is fixedly installed at the bottom of the dust discharge pipe. By forming an electrostatic field on the electrode plate to adsorb dust, the dust collection energy consumption is effectively reduced. The fan speed is relatively low to avoid airflow disturbance causing secondary dust re-entrainment. Electrostatic adsorption can efficiently capture fine dust and dust particles, improving the dust collection effect of the dust collection device.

The utility model belongs to the technical field of vacuum packaging equipment, and particularly relates to a meat pie vacuum packaging machine which comprises a conveying device and a vacuumizing device, the vacuumizing device is arranged on the lower side of the right end of the conveying device, a correcting mechanism is arranged on the upper side of the right end of the conveying device, and a pressing device is arranged on the lower side of the left end of the conveying device to achieve automatic sealing of a packaging bag. According to the vacuum packaging machine, manpower input in packaging can be reduced, the hydraulic cylinder can be adjusted according to the sizes of different packaging bags, openings of the packaging bags are compacted on the lower side of the pressing section in advance, then the packaging bags are sealed, sealing is tight, the vacuum effect is good, the packaging quality of products is high, and using limitation to different environments is low.

The utility model belongs to the technical field of geological sampling, and particularly relates to a measuring mobile sampling device which comprises a frame, wheels mounted at the bottom of the frame, a controller, a handrail, a stand column and a dust removal component mounted on the frame, a rack mounted on the stand column, a gear mechanism in meshing transmission with the rack, and a lifting seat mounted on the lifting seat. The lifting seat is slidably installed on the stand column, a sampling motor is installed in the lifting seat, an output shaft of the sampling motor is connected with one end of a sampling barrel, the dust removal assembly comprises an outer pipe body, the outer pipe body is inserted into the frame in a penetrating mode, and the side face of the outer pipe body communicates with the side face of an outer shell; a filter cartridge is clamped between the internal thread cover and the outer pipe body, and the other end of the outer shell is provided with an exhaust fan and is provided with a through hole opposite to an air duct of the exhaust fan. When the sampling barrel moves downwards and rotates for drilling and sampling, raised dust generated in the soil drilling process is effectively adsorbed into the inner side of the outer shell and is effectively isolated and collected by the filter barrel.

The utility model relates to the technical field of three-coordinate cutting machine equipment, and discloses a dust collection device of a clothing cutting machine, which comprises a cutting machine frame, a machine base is arranged on the cutting machine frame, one side of the machine base is fixedly connected with a limiting circular truncated cone, and a plurality of first suction grooves distributed in a circumferential array are formed in the lower side of the limiting circular truncated cone. A circular groove is formed in the upper side of the limiting circular truncated cone, the inner side of the circular groove is rotationally connected with a sealing box, a plurality of second suction grooves distributed in a circumferential array mode are formed in the lower side of the sealing box, and the second suction grooves and the first suction grooves are arranged in a matched mode. A pointer rod on one side pushes a spiral sliding groove to rotate by a certain angle, a sealing box is pushed to rotate, a first suction groove and a second suction groove in the lower side are aligned and communicated, and therefore the area of a dust suction opening in the lower side of a limiting round table is enlarged, and the effect of improving the dust suction capacity is achieved.

The application discloses a fuel rod helium filling and sealing device, which comprises a cavity, a sealing chamber and a gas sealing mechanism. The fuel rod is arranged in the cavity. The sealing chamber is in sealed butt joint with one end of the cavity. The hole end plug of the fuel rod extends into the sealing chamber through the end opening of the cavity. The end of the sealing chamber is in sealed insertion of a copper electrode. The front end of the copper electrode extends into the sealing chamber. The front end of the copper electrode is provided with a jack. The tungsten electrode is in limited insertion in the jack. The copper electrode and the cavity are electrically connected with the positive electrode and the negative electrode of a TIG welding machine respectively. The sealing chamber and the cavity are connected with a vacuum device. The helium tank is connected with the sealing chamber. The gas sealing mechanism is arranged at the other end of the cavity and seals the end of the cavity. The scheme has the advantages of ingenious structure, easy processing, easy assembly and easy replacement. The scheme simplifies the process and difficulty of the batch helium filling and sealing of the fuel rod, avoids the damage of the surface of the thin wall of the cladding tube, and greatly reduces the cost of the fuel rod filling and sealing.

This utility model relates to the field of vacuum coating technology and discloses an observation device and a coating system. The observation device includes a housing, an observation unit, and a blocking unit. By setting the housing, the observation unit, and the blocking unit, the service life of the observation structure can be extended. This allows for the replacement of the observation structure or the second light-transmitting element in the observation unit while performing routine maintenance on the component to be connected. This eliminates the need for multiple shutdowns of the component to be connected to replace the observation structure or the second light-transmitting element during the period between start-up and routine maintenance, as is done in related technologies. The observation device of this utility model can increase the working time of the component to be connected, thereby achieving the technical effects of improving the working efficiency of the component to be connected and saving the usage cost of the component to be connected.