52results about How to "Effective dust protection" patented technology

The invention discloses a long-service-life welding apparatus. The long-service-life welding apparatus comprises a frame body and an electric connector which is inserted in the frame body to be connected therewith in a matching manner; an internal groove which extends left and right is formed in the frame body; an inserting groove is connected between the right end of the internal groove and the exterior of the frame body; a partition strip fixedly connected with the frame body is arranged at the right end of the internal groove above the inserting groove; an opening slot which extends upwardly is formed in the partition strip; and the left end of the opening slot is connected with the internal groove, the right end is connected with the exterior of the frame body, and the lower side is connected with the inserting groove. The long-service-life welding apparatus is simple in overall structure, low in production cost, safe and reliable in power supply, simple and convenient in operation, and capable of effectively reducing electric shock accidents in the existing life, safeguarding life safety of people, avoiding power failure accident of the welding machine caused by mistake kicking and mistake collision, and effectively protecting the service life of the welding machine, and is suitable for popularization and use.

The invention discloses a dustproof cover with a louver capable of being automatically opened under heat. The dustproof cover comprises a lamp body, the interior of the lamp body is connected with a light source module, the position, corresponding to the light source module, of the upper part of the lamp body is connected with a dustproof cover body, the dustproof cover body is connected with a plurality of louver blades, and one sides of the louver blades are connected with the dustproof cover body through double-metal sheets. The invention further discloses an implementation method of the dustproof cover with the louver capable of being automatically opened under the heat. Under the situation that a lamp is not turned on, due to no temperature change, the double-metal sheets have no deformation amount, the louver blades are combined, the appearance is attractive, and the effective dustproof effect is achieved; when the lamp is turned on, the temperature reaches a specific value, thedouble-metal sheets are deformed under the heat to open the louver blades, thus air convection is formed, heat dissipation is optimized, the lamp is effectively protected, and the life of the lamp isprolonged; and compared with the mode that the louver is automatically opened by increasing electricity on the market, physical properties of the copper and iron metal sheets are fully utilized, and thus compared with electrical control, the cost is low, controllability is high, and the maintenance factor is low.

The invention provides a terminal device for video editing artistic design, which comprises a terminal box body, a driving mechanism is arranged at the upper part of the left end surface of the terminal box body, and the left end surface of the terminal box body is slidably connected with a first hairbrush which is longitudinally distributed. The first hairbrush matches a second hairbrush. By turning on a switch, a controller is enabled to start a motor, a motor rotating shaft drives a screw rod to rotate; a nut drives the first hairbrush to move backwards under the action of threads; when thefirst hairbrush moves to the rear end; a key on the reverse switch is pressed; the rotating shaft of the motor reversely rotates; and when the first brush moves to the front end, a key on the stop switch is pressed, so that the motor stops operating, the first brush can clean the heat dissipation holes in the left end surface of the terminal box body every time the terminal box body is started, and the heat dissipation effect in the terminal box body is further improved.

The invention discloses a multi-modality English teaching device for English teaching. The multi-modality English teaching device comprises a mounting box, wherein a multimedia display screen is arranged in the mounting box; a height adjusting mechanism for driving the multimedia display screen to ascend and descend is further arranged in the mounting box; an angle adjusting mechanism for drivingthe multimedia display screen to rotate is further arranged on the height adjusting mechanism; the height adjusting mechanism comprises a first rotating shaft; the first rotating shaft is rotationallyconnected to the inner wall of one side of the mounting box; the first rotating shaft is driven by a reducer arranged on the outer wall of the mounting box; a first gear is arranged on the middle part of the first rotating shaft; a toothed plate is meshed on the surface of the first gear; and a fixed block is fixed to the side, far away from the bottom of the first gear, of the toothed plate. Themulti-modality English teaching device is mounted in a suspension way, so that the classroom space can be utilized fully. The mounting height is relatively large, so that the display screen is not touched by students during playing, chasing and other activities of the students. The multi-modality English teaching device is put away when not in use, so that effective dust prevention can be achieved.

The invention discloses a hair straightener device. The hair straightener device comprises a shell and an electrical connection head jacked into the shell for cooperative connection. An inner groove expanding left and right is formed in the shell. The right end of the inner groove and the exterior of the shell are connected with a splice groove, a partition plate fixedly connected with the shell is arranged at the position, located above the splice groove, of the right end of the inner groove, a groove expanding upwards is formed in the partition plate, the left end of the groove is connected with the inner groove, the right end of the groove is connected with the exterior of the shell, and the lower portion of the groove is connected with the splice groove. The hair straightener device is simple in overall structure, low in production cost, safe and stable in power supply and easy to operate, existing electric shock accidents in life are effectively reduced, the life and property safety of people is guaranteed, the power cutoff accident, caused by mistaken kicking and colliding, of a hair straightener can be avoided, the service life of the hair straightener is effectively protected, and the hair straightener device is suitable for use and popularization.

The invention discloses a preparation device and preparation method for a nano noble metal catalyst. The preparation device comprises a low-temperature drying box; a storage box body is welded on a side surface of the low-temperature drying box; a connecting shaft is in penetrating rotating connection with the bottom of the storage box body; the middle of the connecting shaft is connected with a working plate in a sleeve mode; the working plate is in an L shape; connecting blocks are welded on the L-shaped inner side of the working plate at equal intervals; the end face of each connecting block is bonded with a containing sleeve; and each containing sleeve is internally provided with a beaker. The device is scientific and reasonable in structure and is safe and convenient to use. Proper amounts of reaction solutions are measured by a measuring cylinder; then the reaction solution is put into beakers in the containing sleeves for reaction; and finally cleaning and filtering are carriedout by using a filtering assembly, so that the whole preparation process is completed, and independent use of the preparation device is realized. Meanwhile, the working plate is covered, and an L-shaped inserting strip is inserted into a fixing sleeve to fix the working plate, so that preparation components can be separately stored, use for the next time can be facilitated, and an effective dust prevention effect can be achieved.

The invention belongs to the field of management technology, and particularly relates to a multidirectional face identification device. The multidirectional face identification device comprises a housing and a display screen. The front surface of the housing is provided with a slide block button, a camera adjusting button set and a groove. The upper inner wall and the lower inner wall of the groove are provided with chutes. A slide plate is arranged between the two chutes. An iron block is welded to the side surface of the slide plate. The inner part of the housing is fixedly connected with anelectromagnet. The left side of the iron block is provided with springs which are symmetrically welded in a vertical direction. The other side of the spring is provided with a block which is welded.The block is fixedly connected with the housing. One side of the groove is provided with a camera. The camera is connected with a supporting frame. A rotating bearing is arranged between the supporting frame and the camera. The upper side of the supporting frame is provided with a micro-motor. One side of the supporting frame is fixedly connected with a rotating ring. The rotating ring sleeves a fixed shaft. The fixed shaft is fixedly connected with the housing. One side of the rotating ring is fixedly connected with a seesaw. The lower side of the seesaw is fixedly connected with a magnet plate. The lower side of the magnetic plate is connected with a metal cylinder. The metal cylinder is fixedly connected with an electric cylinder. The electric cylinder is fixedly connected with the housing.

The invention relates to the technical field of multimedia equipment, in particular to a digital television set-top box, which comprises a box body, a heat dissipation mechanism, a support plate, a junction box, a mounting mechanism and a wire pressing mechanism; the digital television set-top box comprises a box body, a heat dissipation mechanism, a support plate, a terminal box, a mounting mechanism and a wire pressing mechanism. The invention can reduce the occupying area of the set-top box, and inverts the junction box of the set-top box between the box body and the support plate, so as toeffectively protect the line from dust and avoid dust accumulation at the interface. As that data wire of the set-top box are arranged in parallel between the box body and the support plate, the datawire connector and the wall surface can be avoided from colliding and the occupied area is reduce, and the data wire connector does not need to be bent, so that the service life of the data wire is longer; After the set-top box is inserted and fixed, the excess data wire is inserted between the box body and the support plate, so that the external data wire is as short as possible, the data wire is at the optimum length, and the storage is convenient, and the side adjacent to the pressing plate and the box body will squeeze the data wire passing through the gap, so as to press and limit the data wire.

The invention discloses an embedded display screen with a pull protection function, which relates to the field of display screens, and provides the following scheme aiming at the problems that the display screen is damaged in the use process and the picture definition is reduced due to the fact that an existing display screen does not have anti-collision and dustproof protection. The embedded display screen comprises a frame and a display screen body, wherein the front face of the frame is in an opening shape, the frame is embedded in the wall plate, the display screen body is installed in the frame, two symmetrically-distributed sleeves are fixedly connected to the inner wall of the side, opposite to the opening, of the frame, and movable rods are slidably arranged in the sleeves in a sleeved mode. And the end part of the movable rod extends to the outer part of the sleeve and is fixedly connected with a rotating shaft. Effective anti-collision protection can be carried out on the display screen, meanwhile, the using angle of the display screen can be adjusted according to using requirements, effective dustproof protection can be carried out on the display screen, and the definition of the display screen in the picture playing process is guaranteed.

The invention relates to a manipulator with a hydraulic quick-change connector, which comprises a third arm, an accessory, the quick-change connector, an oil cylinder, a pushing part, an expanding and supporting assembly, a hydraulic connector a, an extrusion part, a liquid storage tank and a hydraulic connector b; liquid oil is stored in the liquid storage tank; the oil cylinder pushes the pushing part to the two sides; the extrusion part extrudes the liquid oil in the liquid storage tank in the lateral moving process of the pushing part; the expanding and supporting assembly expands outwards and is fixed under the pressure of hydraulic oil; and the hydraulic connector b is in butt joint with the hydraulic connector a which is separated from shielding of the expanding and supporting assembly through magnetic adsorption. The problems that when the accessory is replaced at present, the accessory cannot be fixed through pushing of the oil cylinder, after installation, the quick-change connector and the accessory cannot be in tight joint, and dustproof shielding cannot be conducted on the hydraulic connector are solved.

The invention discloses a safe welding apparatus. The safe welding apparatus comprises a frame body and an electric connector which is inserted in the frame body to be connected therewith in a matching manner; an internal groove which extends left and right is formed in the frame body; an inserting groove is connected with the right end of the internal groove and the exterior of the frame body; apartition strip fixedly connected with the frame body is arranged at the right end of the internal groove above the inserting groove; an opening slot which extends upwardly is formed in the partitionstrip; and the left end of the opening slot is connected with the internal groove, the right end is connected with the exterior of the frame body, and the lower side is connected with the inserting groove. The safe welding apparatus is simple in overall structure, low in production cost, safe and reliable in power supply, simple and convenient in operation, and capable of effectively reducing electric shock accidents in the existing life, safeguarding life safety of people, avoiding the power failure accident of the welding machine caused by mistake kicking and mistake collision, and effectively protecting the service life of the welding machine, and is suitable for popularization and use.

The automatic device comprises a movable base and an auger conveyor fixedly installed on the upper side of the movable base, a filling hopper is arranged on the upper portion of the right side of the auger conveyor, a discharging pipe is arranged at the left end of the auger conveyor, and ground gripping structures are arranged at the four corners of the movable base respectively; the filling hopper comprises a hopper body, a hopper neck and a conveying pipe which are integrally formed, a dustproof structure is arranged on the inner top of the hopper body, a feeding mechanism is arranged on the inner side of the hopper neck, and the caliber of the conveying pipe is gradually decreased from top to bottom. Compared with the prior art, the automatic feeding device has the advantages that through uniform feeding of the feeding mechanism and the auger conveyor, solid materials can be continuously and automatically fed at a constant speed, and the feeding speed is easy to control; the feeding mechanism can effectively prevent solid materials from blocking the filling hopper; the dust blocking structure can play an effective dustproof role; and by means of the ground gripping structure, parking of the parking device is more stable.

The invention discloses a teaching display board with the dustproof function. The teaching display board comprises a main display board, wherein a rectangular ink screen is inlaid in the front surface of the main display board, a wall hanging mechanism is arranged on the rear surface of the main display board, a storage mechanism is arranged at the bottom of the main display board, and a dustproof mechanism is arranged at the top of the main display board. According to the teaching display board, the storage mechanism is hidden at the bottom of the main display board, the operation is convenient, the storage function of the teaching tool is realized, and the uniformity of the whole structure of the main display board is not damaged; when the teaching display board is not used, sealing plates are pulled out of a groove in the top of the main display board, then the sealing plates are pulled to the bottom from the top along with wrapping cloth, and the wrapping cloth is used for effectively preventing dust for the ink screen; and the teaching display board is fixed on a wall through wall abutting rods, the distance between the main display board and a wall body is changed through movable deformation of spring rods, and therefore the flexibility of the teaching display board is enhanced.

The invention discloses a novel hair straightener device. The device comprises a shell and an electric connector with the top which enters the shell and is connected with the shell in a matched mode,an inner groove which extends in the leftward and rightward directions is formed in the shell, the right end of the inner groove is communicated with an insertion groove on the outer portion of the shell, a separation board fixedly connected with the shell is arranged on the portion, located above the insertion groove, of the right end of the inner groove, a groove which extends upwards is formedin the separation board, the left end of the groove is communicated with the inner groove, the right end of the groove is communicated with the outer portion of the shell, and the lower portion of thegroove is communicated with the insertion groove. According to the device, the whole structure is simple, the production cost is low, power supply is safe and stable, operation running is simple, andelectric shock accidents in the existing life are effectively reduced, so that life and property safety of people is guaranteed; moreover, power cutoff accidents of a hair straightener due to accidental kicking or hitting can be avoided, so that the service life of the hair straightener is effectively prolonged, and then the device is suitable for application and popularization.

The invention discloses a charging facility for a battery cart. The charging facility comprises a charging box and a charging gun jacked into the charging box for cooperative connection, a hook is fixedly arranged on the left side of the charging box, a hooking groove is formed between the hook and the charging box, an inner end groove extending left and right is formed in the charging box, the right end of the inner end groove and the exterior of the charging box are communicated with a jacking-in groove, a cutting plate fixedly connected with the charging box is arranged at the portion, above the jacking-in groove, of the right end of the inner-end groove, and an open hole extending upwards is formed in the cutting plate. The charging facility is simple in whole structure, low in production cost, safe and stable in power supply and easy to operate, electric shock accidents in existing living are effectively reduced, life property safety of people is ensured, the phenomenon that the battery cart is powered off due to error kicking and collision can be avoided, the service life of the battery cart is effectively protected, and the facility is suitable for being used and popularized.

The invention discloses a protective outer frame for a frequency converter of a grinding machine, including an outer frame, the front side of the outer frame is provided with an opening, first fixed springs are uniformly distributed and fixedly connected on the bottom surface of the inner cavity of the outer frame, the tops of the first fixed springs are fixedly connected with a first support plate, the top surface of the first support plate is provided with a first fixing clamping groove, second fixing springs are uniformly distributed and fixedly connected on the top surface of the inner cavity of the outer frame, and the bottom surfaces of the second fixing springs are fixedly connected with a second support plate. The invention relates to the technical field of frequency converter protection equipment. The invention relates to the protective outer frame for the frequency converter of the grinding machine, achieves the purpose of prolonging the service life of the frequency converter, which can effectively cushion and damp the vibration of the frequency converter and play an effective dust-proof role, and the frequency converter can be clamped and fixed on the surface of the grinding machine by using the outer frame, so that the frequency converter is convenient to dismounted from and mount on the surface of the grinding machine, and the frequency converter is not easy to damage and convenient to use.

The invention discloses a manual wiring board socket apparatus. The manual wiring board socket apparatus comprises a board base and a plug assembly inserted into the board base to realize power connection and matching connection; an inner groove which extends left and right is formed in the board base; the right end of the inner groove and the exterior of the board base are connected with a powersupply slot; a board body integrated with the board base is arranged at the right end, positioned above the power supply slot, of the inner groove; an opening groove which extends upwardly is formed in the board body; and the left end of the opening groove is connected with the inner groove, the right end is connected with the exterior of the board base, and the lower side is connected with the power supply slot. The manual wiring board socket apparatus is simple in overall structure, low in production cost, safe and stable in power supply, simple in operation, and capable of effectively reducing electric shock accidents in the existing life, safeguarding life and property safety of people, avoiding power failure accident of the electrical equipment caused by mistake kicking and mistake collision and effectively protecting the service life of the electrical equipment, and is suitable for popularization and use.