51results about How to "Avoid slipping out" patented technology

The invention discloses a display and storage device with a rolling function for an architectural drawing. The device includes a lamplight board, fixing rods, a rotating handle and a lap joint piece;first rotating shafts are arranged on all the brims of the front end of the lamplight board, a second rotating shaft is welded to the center of the lower end of the lamplight board, the fixing rods are fixed to the rear end of a cavity, an extending plate is fixed to the right side of the lower end of a storage cabinet, the rotating handle penetrates through a stabilizing plate transversely, a take-up roll is fixed to the center of the right side of a baseplate, an abutting component is fixed to the lower end of a transverse rod, and an electric retractable rod is fixed to the center of the surface of the lower end of the storage cabinet. According to the display and storage device with the rolling function for the architectural drawing, the storage cabinet at the lower end can be used forstoring the rolled drawing, and convenience is provided for finding and taking the drawing; vertical plates can be used for limiting the drawing on the surfaces of the fixing rods through a sliding rail, the situation that the drawing slides out since the device slants is avoided, the take-up roll is driven by the rotating handle and a bearing to rotate, and therefore the drawing is rolled up.

The invention discloses a food and medicine drying device, and relates to the technical field of foods and medicines. The drying device comprises a drying box, wherein a mesh plate is arranged in thedrying box; the lower surface of the mesh plate is overlapped with top ends of four cams; and the four cams are respectively clamped outside two rotating shafts. According to the drying device, through mutual cooperation of a first switch, a second motor, a half gear, a toothed plate, a sliding block, a pulley, a hot air fan, a second spring, a second switch, a first motor, the rotating shafts, the cams and the mesh plate, the defect that the hot air fan can only dry the surface of the food or the medicines, so that the underneath stacked foods and medicines are completely dried under the vertical movement of the mesh plate; and moreover, the wet or large size foods and medicines can be crushed through the horizontal movement of the pulley, so that the large size foods or medicines are completely dried as well, and the practicability of the device is improved.

The invention relates to an assistant device used for a winding mechanism and capable of storing and releasing rotation energy. The assistant device used for the winding mechanism and capable of storing and releasing the rotation energy comprises an inner pipe, core iron and a spring, wherein the core iron is of a strip shape and is contained in the inner pipe, the core iron is sleeved with the spring, one end of the core iron extends out of the inner pipe, and is sleeved with a spring bead which is connected with the inner pipe, one end of the spring is connected with the spring bead, and the other end of the spring is connected with the core iron. The assistant device used for the winding mechanism and capable of storing and releasing the rotation energy is characterized in that at least one protruding rib is arranged on the core iron, the radial direction of the protruding rib is outward, the spring bead comprises a first pipe portion, the internal radius of the first pipe portion is smaller than the radial distance between the outer end of the protruding rib and the central axis of the core iron, a guide groove is formed in the inner wall of the first pipe portion, is matched with the protruding rib in appearance, and extends in the axial direction, one end of the guide groove extends towards the interior of the inner pipe in the axial direction, and an opening is formed in the end portion of the first pipe portion. According to the assistant device used for the winding mechanism and capable of storing and releasing the rotation energy, due to the fact that on the basis of a traditional structure, the protruding rib on the core iron is used in cooperation with the guide groove in the spring bead, locking of pre-rotation energy of the spring can be easily achieved before the assistant device leaves the factory, a curtain box does not need to be added, assembly is convenient, production efficiency is improved, and the production cost is reduced.

The invention discloses a paper-counting machine. The paper-counting machine comprises a rack, a working platform mechanism, a counting device, a paper tag conveying device and a cutter, wherein paper is piled onto the bearing plate of the working platform mechanism and pressed by a paper-pressing plate; through the cooperation of a paper-sucking rotating shaft and a paper-pressing rotating shaft in the counting device, the paper pile is counted from bottom to top; when the counting is in place, the paper tag conveying device conveys paper tags to the paper pile so as to allow the cutter to cut the paper tags and keep the paper tags in the paper pile for conducting a positioning marking function. The paper-counting machine has the advantages that the working efficiency is high, the paper counting is accurate, and the paper tags can be inserted and positioned automatically.

The invention belongs to the technical field of electronic teaching, and discloses an interconnected blackboard with a playback function and a system thereof. The interconnected blackboard comprises an installation outer shell, a touch screen and a movable adjustment device; the touch screen and the movable adjustment device are arranged at one side of the installation outer shell, the touch screen is embedded in the installation outer shell, and the touch screen comprises a display area and a writing and recording area; sliding grooves are formed in the positions, located on the two sides ofthe touch screen, of the outer wall of one side of the outer shell, the movable adjusting device comprises a movable push rod, and the two ends of the movable push rod are located in the two sliding grooves respectively and slide along the sliding grooves; the display area and the writing and recording area are located on the two sides of the push rod respectively, and when the push rod moves, thearea of the display area and the area of the writing and recording area change accordingly. In conclusion, the adjustable display area and the writing and recording area are arranged on the interconnected blackboard, so that playback use and writing use of the interconnected blackboard can be realized at the same time, and the size of the corresponding area can be adjusted according to actual userequirements.

The invention discloses a small handheld fan with a dust prevention function. The small handheld fan with the dust prevention function comprises a frame, a connecting plate, petal baffles and a rotating handle, wherein a push rod is arranged on the middle lower portion of the frame; the upper portion of the push handle is connected with a clamping plate; the connecting plate is connected with a chute through a sliding block; the chute is formed in the inner side of the middle of the frame; a supporting plate is arranged on the upper portion of the connecting plate; the inner side of the supporting plate is connected with a rubber band; each petal baffle is positioned on the top of a movable rod; a fixing shaft is mounted on the middle upper portion of each movable rod; a fan body is arranged on the inner sides of the pedal baffles; and the rotating handle is positioned on the bottommost portion of the push rod. According to the small handheld fan with the dust prevention function, by use of a connecting strap, the rotating handle and a fixing groove, the clamping plate can be fixed when the fan is used normally, the circumstance that the clamping plate slips out is avoided, after the small handheld fan is used, only the rotating handle needs to rotate, and then the rotating handle can be popped up from the inside of the fixing groove under the elastic effect of the connecting strap.

The invention discloses a stirring tank device for processing a new resin textile material. The device comprises a shell, four corners of the bottom of the shell are fixedly connected with supportingpillars, a stirring cylinder is arranged in the shell, water outlet tubes are arranged at the bottoms of both sides of the shell, one ends, close to the stirring cylinder, of the water outlet tubes are communicated with the shell, and four corners of the bottom of the stirring cylinder are fixedly connected with first fixing blocks. Hot water is injected into the shell from a water inlet tube, anda motor drives a square plate and a sieve plate through a rotating rod and a first connecting plate to stir the material in order to make the material fully contact with the inner wall of the stirring cylinder and the surface of a heat conducting sleeve, so the stirring tank device for processing the new resin textile material has the advantages of convenience in resin heating, and solving of theproblems of failed resin heating of existing stirring tank devices and high thickness of the resin at a low temperature, avoiding of the difficult stirring and low stirring efficiency phenomena caused by the high thickness of the resin, and convenience for people to use.

The invention discloses a convenient-to-use drug delivery device for delivery nursing, and relates to the technical field of delivery. The device comprises a needle cylinder, wherein a piston is arranged in the needle cylinder; a threaded cap is clamped in the piston; the threaded cap is internally in threaded connection with a threaded rod; both the left end and the right end of the threaded rodare fixedly connected to rotating devices; the rotating devices are clamped in the needle cylinder; a left rotating device is clamped in a first gear; and the first gear engages with a second gear. According to the convenient-to-use drug delivery device for delivery nursing, a pull plate, a toothed rod, a third gear, the second gear, the first gear, the threaded rod, the threaded cap and a suctiondisc coordinate with one another, so that the problem that a needle head is deviated due to the easy shake of manual control of medical worker is solved, the problem that the medical worker carries out rough injection by manually pushing the piston is solved, the drug delivery amount can be better controlled, and the accuracy of the drug delivery amount is improved.

A foldable chopstick rest comprises a second clamping plate, a third clamping plate, foldable connecting canvas and a water filter screen. Attaching plates are fixedly arranged on the back of the third clamping plate and protrude out of the end face of the back of the third clamping plate. Hex bolts are not provided with full threads and are only provided with outer threads at the sections close to the tail ends of the hex bolts. A plurality of air holes are formed in the first clamping plate, the second clamping plate and the third clamping plate, and the foldable connecting canvas is connected among the three clamping plates. The water filter screen is connected and arranged at the bottoms of the first clamping plate, the second clamping plate and the third clamping plate. The foldable chopstick rest is provided with a water filter screen. When chopsticks are inserted into a foldable chopstick rest body, chopstick tips of the chopsticks abut against the top end of the water filter screen in a supported mode, and the water filter screen can prevent the chopsticks from falling and slipping out of the foldable chopstick rest body and can also make water flowing down along chopstickwalls leaked into a water storage box, so that the chopstick tips of the chopsticks are kept dry relatively, and bacteria breeding caused by the fact that the chopsticks are soaked in water is prevented.

The invention discloses a screening device capable of automatically screening sand. The screening device capable of automatically screening the sand comprises a transmission case. A base plate is fixedly connected with the bottom of the transmission case, a top plate is fixedly connected with the top of the right side of the transmission case, and an electric box is fixedly connected with the topof the transmission case. A motor which is located inside the electric box is fixedly connected with the top of the top plate. According to the screening device capable of automatically screening thesand, due to the fact that the transmission case, the base plate, the top plate, the electric box, the motor, a first belt pulley, a convex rod, a second belt pulley, a belt, a screening box, supporting mechanisms, first connecting blocks, pull rods, first openings, a concave screening plate, a sliding plate, a sliding groove, a second opening, a handle, a feeding hopper, a discharging pipe and acontrol valve are used cooperatively, the problem that according to an existing screening mode, due to the fact that a screening device is generally shaken manually, the screening efficiency is low issolved, the screening device capable of automatically screening the sand has the advantages of automatically screening the sand and being high in screening efficiency, the labor intensity of a user is reduced, and the screening device capable of automatically screening the sand is conveniently used by persons.

The invention discloses an infusion drip chamber device with replaceable dimensions, which belongs to the technical field of medical instruments and comprises a plastic shell, a sensor component, a drip chamber specification and dimension adapting component, a control mainboard, an anti-slip component and a pocket clamping component, and a cover plate matched with the plastic shell in a clamped manner is arranged on one side of the plastic shell. An installation groove is formed in the other side of the plastic shell, an installation cavity is formed between the cover plate and the plastic shell, a detection groove is formed in the sensor assembly, and at least one set of dripping speed sensor is installed on each of the two sides of the detection groove. The device has the advantages thatthe device can adapt to infusion drip chambers of different sizes through the drip chamber specification and size adapting assembly, medical staff can manually connect an elastic body in the prior art between two elastic body buckles to enable the elastic body to limit the infusion drip chamber in the mounting groove, the clamping hasp can clamp the edge of a pocket, therefore, the device can bestored in a pocket of a medical worker.

The invention discloses an aerated concrete dicing waste removing device. The aerated concrete dicing waste removing device comprises a fixing frame, a rotating shaft frame is fixedly connected to theleft side of the bottom of the fixing frame, an inner cavity of the rotating shaft frame is movably connected with a rotating shaft connecting plate through a rotating shaft, and fixing pipes are fixedly connected to the top and the bottom of the left side of the rotating shaft connecting plate. According to the aerated concrete dicing waste removing device, the fixing pipes, a moving rod, a connecting rod, a transmission rod, a frame, a first rotating rod, a rotating disc, a rotating block, a fixing rod, a first gear, a moving groove, a second rotating rod and a second gear are used in a cooperating mode, so that the problem that a traditional waste removing device is of a structure combining an overall frame with a fixed type scraping plate material removing frame, the position and theangle of a scraping plate are fixed in the process of producing by equipment, and then cut-in height and angle of the scraping plate cannot be adjusted in the follow-up process is solved, the waste removing device has the advantages that the height and the angle of the scraping plate can be adjusted, damage to a blank body is avoided in the cutting process, and the cost consumption is reduced.

The invention belongs to the technical field of basketball training, and particularly relates to a ball picking-up device for basketball training. Aiming at solving the problem that during existing basketball training, ball picking-up is inconvenient, and thus the working efficiency is low, the scheme is currently proposed as follows: the ball picking-up device comprises a base, one end of the base is fixedly connected with a first supporting plate, and the other end of the base is fixedly connected with a second supporting plate; the upper surface of the base is fixedly connected with an exhaust fan, and a power box is arranged on one side of the exhaust fan; and the end, away from the power box, of the exhaust fan is fixedly connected with a suction pipe, and the end, away from the exhaust fan, of the suction pipe is fixedly connected with a hose. According to the ball picking-up device, an independent power supply and a moving structure are additionally arranged, thus arbitrary moving work can be achieved, and the working efficiency of ball picking-up is greatly improved; meanwhile, people can easily pick up balls without the need of bending, and thus physical damage caused by long-term bending to ball picking-up workers is avoided; and a basketball storage structure is provided, and thus the multiple basketballs can be picked up and collected at a time.

The invention discloses integrated movable road detection equipment which comprises a scale metering panel, a storage wire coil is arranged at the lower end of the scale metering panel, a tripod is installed in the middle of the surface of the lower end of the storage wire coil, and a fixed bottom pile is arranged in the middle of the upper portion of the tripod. A top tray column is arranged in the middle of the surface of the top end of the tripod. The curvature detector can calculate the arc length of a curve through specific data and formulas, can directly measure the curvature of the curve, has various fixing modes of the front end of the elastic hinge rope, brings convenience to actual measurement, is simple and rapid in the whole measurement process, reduces the consumption of manpower and material resources, effectively realizes rapid measurement of single-person operation, the detector is small in overall size and convenient to fold, unfold and carry, two use modes of handheld measurement and positioning measurement are achieved, the elastic hinge rope is prevented from being scattered, and normal use of the detector is ensured.

The invention belongs to a toy gun, and particularly relates to a chambering structure capable of achieving continuous bullet shooting. The chambering structure capable of achieving continuous bulletshooting is provided with a bullet clip and can guarantee the continuous shooting function of the toy gun. According to the chambering structure capable of achieving continuous bullet shooting, a continuous shooting gun barrel 1 is arranged at the front end of the toy gun 3; the bullet clip 2 is arranged under the continuous shooting gun barrel 1; and the continuous shooting gun barrel 1 is composed of a continuous shooting housing and a continuous shooting protective device. The invention aims to provide the chambering structure capable of achieving continuous bullet shooting, the arranged continuous shooting protective device guarantees that when the bullet clip 2 loads a first bullet into the toy gun and the toy gun starts chambering shooting, a second clip 14 can be tightened to stop other bullets from being fed into a bullet feeding bin, and the problem that multiple bullets are stuffed into the bullet feeding bin and thus the shooting effect of the bullets can be influenced is avoided; and a first clip 13 can be tightened in the chambering process of the toy gun, and the condition that the bullets can slide out of the gun barrel when users do not press the trigger to shoot out the bullets is evaded.

The invention discloses a welding strip correcting device for a photovoltaic module laminating machine. The welding strip correcting device comprises a connecting frame and a mounting frame, wherein arectangular groove is formed in the top end of the mounting frame, a connecting block is slidably connected in the rectangular groove, a plurality of upper roller bodies are fixed to the outer wall of one side of the connecting block through bearings, a plurality of lower roller bodies are fixed to the outer wall of one side of the mounting frame through bearings, and the upper roller bodies andthe lower roller bodies are distributed in a staggered mode; a lifting assembly is arranged at the top end of the connecting block; and adjusting frames are arranged on the two sides of the outer wallof one side of the connecting frame, sliding grooves are formed in the top ends of the adjusting frames, and sliding blocks are welded to the two sides of the outer wall of the bottom end of the mounting frame. According to the welding strip correcting device for the photovoltaic module laminating machine, the lifting assembly is arranged to be used for lifting the connecting block, so that the distance between the upper roller bodies and the lower roller bodies is adjusted according to the thickness of a welding strip, the height of the connecting block can be adjusted according to the screwing-out length of threaded rods, the threaded rods can be simultaneously adjusted under the action of rotating hand wheel rods, it is guaranteed that the lifting height on the two sides of the connecting block is consistent, and the adjusting stability is improved.

The invention relates to the technical field of solar photovoltaics, in particular to an auxiliary cross beam, a connecting structure of the auxiliary cross beam and main beams and a photovoltaic tracking support, the auxiliary cross beam comprises an auxiliary cross beam main body, clamping grooves I are formed in the end parts of the auxiliary cross beam main body, elastic sheets are arranged onthe auxiliary cross beam main body on the back surfaces of the clamping grooves I, and abutting surfaces are formed on the outer walls of the elastic sheets; the abutting surfaces protrude towards the outer side of the auxiliary cross beam body. The outer end parts of the elastic sheets are bent to form clamping surfaces; and the clamping surfaces are used for abutting against the side surfaces of the main beams. According to the invention, the double main beams are used for constructing the photovoltaic tracking support, main cross beams are connected with the double main beams, and the auxiliary cross beams connected between the main beams are matched to improve the torsional rigidity of the photovoltaic tracking support, so that the problems that the photovoltaic panel cannot be normally installed due to low torsional rigidity of the photovoltaic tracking support or the photovoltaic panel is damaged and cannot work normally due to the deformation of the support are solved.

The invention discloses a bearing lock and relates to the field of locks. The bearing lock is technically characterized in that the bearing lock comprises a door lock panel, a bearing installed on the door lock panel, and a lever handle rotating shaft inserted in a bearing inner hole, and the bearing is connected with the door lock panel through a connecting structure arranged on the bearing; the outer edge, away from the door lock panel, of the bearing inner hole extends along the inner circle of the bearing to form a concave edge, and the concave edge is abutted against the outer ring of the bearing. Due to the arrangement of the connecting structure and the concave edge, the bearing clamped to the bearing inner hole is always located in the bearing inner hole, and the bearing is prevented from sliding out of the bearing inner hole in the use process. Compared with the Chinese utility model file which is mentioned in the background technology and has the application number of 2008201752246, the bearing lock is advantageous in that the service life of the bearing or the service life of the bearing lock is remarkably prolonged in the use process due to the fact that screw holes and set screws are omitted.

The invention discloses multifunctional fitness equipment. The multifunctional fitness equipment comprises a chassis, wherein a fixed rod is arranged in the middle of the chassis, a spring is vertically arranged on the fixed rod, and a handle disk is fixedly arranged at the upper end of the spring. According to the characteristics of the spring, the multifunctional fitness equipment disclosed by the invention can be used for exercising different body parts through different exercising ways.

The invention relates to the field of packaging and processing and provides a fully-automatic tea leaf vacuum packaging machine comprising a rack, a vacuum pump, a vacuum chamber, a sealing strip, an organic glass plate upper cover, an air bag and an electromagnetic valve. The organic glass plate upper cover is provided with a sealing pad corresponding to the sealing strip; the sealing pad is grooved in structure; the air bag is connected with the vacuum pump via an air inlet pipe; the two ends of the sealing pad are closed; the air inlet pipe is provided with an oil holding container. The machine can effectively prevent product packages from slipping out during sealing of the product packages, thereby achieving a better sealing effect and guaranteeing the sealing quality.

The invention relates to the technical field of greenhouse planting, and discloses sprinkling irrigation equipment for greenhouse fruit and vegetable planting. The sprinkling irrigation equipment comprises a mounting plate, an adjusting plate, a transverse pipe, a hose and a lantern ring; the adjusting plate is transversely arranged below the mounting plate, the adjusting plate is parallel to the mounting plate, the adjusting plate is connected to the lower part of the mounting plate through two connecting cylinders, the two connecting cylinders are connected to the two sides between the adjusting plate and the mounting plate, each connecting cylinder is composed of a sleeve and an inserting rod, and the sleeves are located above the inserting rods. By arranging the transverse pipe, the hose, a first spraying hole and a second spraying hole, water mist can be sprayed into the greenhouse and directly acts on stems and leaves, clear water with higher pressure enters the hose when needed, a pressure release valve can be opened to achieve the irrigation effect, the problem of balance between the spraying function and the irrigation function is solved, irrigation and spraying of vegetable crops are more convenient, and the hose is matched with metal rings, so that climbing and growth of the vegetable crops are facilitated.

The invention discloses a pipe tower connecting plate point-mounting adjustable device which comprises a base plate, a first main plate and a second main plate. Rolling wheels capable of conveniently moving in front-back mode are arranged on the bottom face of the base plate, and slide rails extending in a left-right mode are formed on the top face of the base plate. The first main plate comprises a lower plate body capable of moving along the slide rails and an upper plate body in rotatable connection with the lower plate body through a first connector. The second main plate comprises a lower face plate capable of moving along the slide rails and an upper face plate in rotatable connection with the lower face plate through a second connector. A first vertical plate is arranged on the top face of the upper plate body, and a first lower connecting plate and a first upper connecting plate which are capable of moving vertically are arranged on the first vertical plate. First mounting holes are formed in the first upper connecting plate and the first lower connecting plate. A second vertical plate is arranged on the upper face plate, and a second lower connecting plate and a second upper connecting plate which are capable of moving vertically are arranged on the second vertical plate. Second mounting holes are formed in the second lower connecting plate and the second upper connecting plate. By means of the pipe tower connecting plate point-mounting adjustable device, the welding position of a pipe tower connecting plate can be accurately adjusted, and the using effect of the pipe tower connecting plate can be ensured.

The invention belongs to the technical field of power distribution cabinets, and particularly relates to an intelligent power distribution cabinet for preventing an instrument lens from being atomized. In order to solve the problem that data reading by workers is affected by more water vapor adhered to an instrument lens when the interior of an existing power distribution cabinet is too wet due to poor sealing performance in the using process of the existing power distribution cabinet, the following scheme is provided, namely, the intelligent power distribution cabinet comprises a bottom plate, a cabinet body and a control panel; one side of the cabinet body is fixedly connected with a mounting plate; one side of the mounting plate is fixedly connected with a shell; a guide pipe is inserted into one side of the shell; and a connecting pipe rod is inserted into one side of the guide pipe. By arranging a fan and an exhaust pipe, an instrument on a mounting frame can be uniformly dehumidified by cold air, so that the influence of water vapor generated on the lens of the instrument on the data reading work of a worker can be effectively avoided.

The invention relates to a temporary facility pipeline multi-layer adjustable support, and belongs to the technical field of building construction temporary facility pipeline comprehensive arrangement. The temporary facility pipeline multi-layer adjustable support comprises an L-shaped telescopic square tube, a sliding telescopic square tube is arranged on the right side of the L-shaped telescopic square tube, and a first clamping sleeve is fixedly arranged on the top of the sliding telescopic square tube; one end of the L-shaped telescopic square tube penetrates through the first clamping sleeve in a sliding mode, a first horizontal supporting sliding square tube and a second horizontal supporting sliding square tube are arranged between the L-shaped telescopic square tube and the sliding telescopic square tube, and one end of the first horizontal supporting sliding square tube is connected with the second horizontal supporting sliding square tube; according to the multi-angle adjustable support, the function of adjusting the left-right width of the support is achieved, the function of adjusting the support up and down is achieved, and the first clamping mechanism and the second clamping mechanism can be conveniently and rapidly installed.

The invention provides a position limiting device for a drawer unit of a pull-out type low-voltage switch cabinet. Two fixed grooves are fixedly fomred in a position of each drawer in a cabinet body of a drawer cabinet, a support frame is arranged at the outer side of the two fixing grooves, a plurality of pulleys are arranged between the support frame and the fixing grooves, the support frame slides along the fixing grooves through the pulleys, the pull-out ends of the two fixing grooves are respectively provided with position limiting blocks, and drawer are hung on the support frame. The position limiting device has the following advantages and beneficial effects that 1, the drawer unit can be effectively prevented from generating sliding-down or sliding-out phenomenon; 2, the position limiting device is used for hanging the drawers on the support frame, and the drawers cannot generate the slide-down phenomenon even when the drawers slide out of the fixing grooves; 3, the structure is simple, and the use is convenient.

The invention belongs to the technical field of electric power fittings, particularly relates to a cable protection fitting for electric power engineering, and aims to solve the problems that an existing protection fitting only can achieve the purpose of wrapping a joint, and when two ends of an electric power cable receive tensile force, the joint is easy to break, and provides the following scheme that the cable protection fitting comprises a first shell, a second shell is hinged to the outer wall of the first shell, cavities are formed in the inner walls of the first shell and the second shell, two winding discs are arranged on the inner walls of the cavities, a plurality of mounting grooves which are annularly distributed at equal intervals are formed in the outer walls of the winding discs, buffer springs are arranged on the inner walls of the mounting grooves, a limiting plate is arranged at the end, away from the mounting groove, of each buffer spring, and a cable groove is formed in the outer wall of one side of the limiting plate. According to the invention, the tensile force applied to the cable joint can be greatly reduced, the cable joint is protected from being broken, and the electricity utilization safety of people is guaranteed.

The invention discloses an aluminum alloy product surface treatment device and belongs to the technical field of metal product surface treatment. The aluminum alloy product surface treatment device comprises a grinder body and tiles arranged on the grinder body, wherein scrap collecting boxes are arranged on the tiles; fixing plates are fixed on the side surfaces of the tiles; plug-in grooves areformed in the outer surfaces of the sides, close to the tiles, of the fixing plates; and collecting units are arranged on the scrap collecting boxes, and assembled to collect scraps generated from thegrinding operation of the grinder body. Through the arrangement of the scrap collecting boxes and the addition of a proper amount of clear water into the scrap collecting boxes, sparks generated in the grinding process can be collected and the spark temperature can be quickly reduced; furthermore, the sizes of the exposed surfaces of grinding wheels can be adjusted by people according to the sizeof an actual size through arranged protective tiles; and consequently, the circumstance that working personnel accidentally get in touch with the grinding wheels which rotate at a high speed can be prevented and the use safety of the entire grinder body can be significantly enhanced.

The invention discloses an electric line arc extinguishing method, which belongs to the field of electric line arc extinguishing, and comprises the following steps: S1, an arc extinguishing system is established, the arc extinguishing system comprises a contact system, an arc striking channel and an arc extinguishing chamber, S2, the arc extinguishing chamber in S1 comprises an arc extinguishing cover and an arc extinguishing grid sheet group, and the arc extinguishing cover comprises two isolation plates which are respectively located at two sides of the arc extinguishing grid sheet group; the arc extinguishing grid piece group comprises a plurality of arc extinguishing grid pieces, connecting assemblies are arranged at the end parts, close to the isolation plate, of the arc extinguishing grid pieces, each connecting assembly comprises a connecting piece and a locking piece, and the connecting pieces sequentially penetrate through the arc extinguishing grid pieces and the bearing plate from top to bottom and then are fixedly connected with the locking pieces at the bottom; the arc extinguishing grid pieces and the bearing plate are provided with through holes for the connecting pieces to penetrate through. According to the arc extinguishing device, the arc extinguishing grid pieces and the bearing plate are fixed through the connecting assemblies by means of cooperation of the sliding grooves and the sliding blocks, the installation procedure of the arc extinguishing grid pieces is simplified, and the arc extinguishing grid pieces and the arc extinguishing cover are fixed more firmly.