130results about How to "Guaranteed dustproof effect" patented technology

The invention discloses an outdoor distribution cabinet with dust prevention and ventilation functions, the distribution cabinet includes a distribution cabinet main body, a first ventilation device is arranged on the top of the distribution cabinet main body, a second ventilation device is provided at the bottom, the power distribution cabinet main body is of a rectangular hollow structure, and the top part is provided with a first ventilation slot, the first ventilation device communicates with the distribution cabinet main body through the first ventilation slot, the bottom of the distribution cabinet main body is provided with a second ventilation slot, the second ventilation device communicates with the distribution cabinet main body through the second ventilation slot, the first ventilation device comprises an upper shell, and the upper shell is of a rectangular hollow structure. The invention is novel in design, and has the advantages of simple structure and convenient use. Theadjusting mechanism capable of movably opening and closing on the first ventilation device cooperates with the exhaust fan of the second ventilation device at the bottom, so that the ventilation and dust prevention functions of the outdoor distribution cabinet can be greatly improved, not only are the requirements of ventilation and heat dissipation are met, but also the preservation of the dust prevention function is ensured, and the outdoor distribution cabinet is suitable for popularization and use.

The invention relates to a motor, a power device and an aircraft using the power device. The aircraft comprises an aircraft body, a motor arranged on the aircraft body and propellers mounted on the motor, wherein the motor is formed by a stator arranged on the aircraft body, a rotor rotationally covering the stator and a cover body arranged on the rotor; the cover body has blades; and a slit is formed in the cover body. When the motor operates, the rotor drives the cover body to rotate; rotation of the blades enables air in the rotor to be discharged out of the slit and take away heat produced by the motor. The aircraft and the motor have high heat radiation efficiency and are dustproof.

The invention, which belongs to the technical field of a mobile terminal, discloses a method, apparatus, and system for moving in and out of a card support. The method comprises: an operation of trigging popping of a card support by a user is detected and whether the operation of popping of the card support is effective is determined; if so, the card support pops out; and if not, the failure of popping of the card support is prompted. According to the invention, because r the operation of trigging popping of the card support by the user is detected, a phenomenon that the card support can not pop out until a rear cover is opened or a card needle is used manually can be avoided, so that the card replacement becomes convenient; the integrated beauty and dustproof effect of the mobile terminal can be realized because of saving of opening the rear cover or a card needle hole. Besides, the operation of trigging popping of a card support is verified, so that the exclusive and secure properties of card support replacement are guaranteed.

The invention discloses a multifunctional dustproof fabric. The multifunctional dustproof fabric comprises an antimicrobial layer (1), a dustproof base cloth layer (2) and an anti-static layer (3) which are arranged sequentially, wherein the dustproof base cloth layer (2) is woven by warp and weft according to a warp density of 30 pieces/cm and a weft density of 30 pieces/cm; the antimicrobial layer (1) and the dustproof base cloth layer (2) are adhered through an adhesive; and the anti-static layer (3) is a coating which is formed by spraying an antistatic agent on the surface of the dustproof base cloth layer (2) and is 1 mm thick. With the adoption of the scheme, the antimicrobial layer and the anti-static layer are added to a traditional dustproof fabric, so that while the multifunctional dustproof fabric keeps the dustproof performance of a dustproof fabric, the multifunctional dustproof fabric has the antimicrobial and antistatic advantages.

The invention discloses a mechanical equipment dustproof device, and relates to the technical field of mechanical equipment dust prevention. The mechanical equipment dustproof device comprises a dustproof box, a dust removing device arranged at the top of the dustproof box, and a chassis arranged at the bottom of the dustproof box; an opening is formed in the front surface of the dustproof box, and is hinged to a box door; a dust sucking plate is arranged at the top of the dustproof box; the surface of the dust sucking plate is tightly bonded with the dust removing device; two air inlets and afan are arranged on the side surface of the dustproof box; a drying layer is arranged on the side of the fan; two air outlets are formed in the other side surface opposite to the dustproof box; an opening is formed between the air outlets; a heat dissipating block and a heat conducting block larger than the opening are arranged on the outer side and the inner side of the opening; two ends of theheat dissipating block are fixed on the outer wall of the side surface of the dustproof box through screws; and the heat conducting block is fixedly connected with the heat dissipating block. The mechanical equipment dustproof device can achieve better heat dissipating effect when guaranteeing excellent dustproof effect, guarantees the dryness of internal air, and prolongs the life of mechanical equipment.

A permanent magnetic direct-current brushless motor of a biased mounting structure comprises an end cap, a rotor assembly, a stator assembly and a motor shaft. The end cap is positioned on two sides of the rotor assembly and composed of a fixed end cap and a drum brake end cap, the rotor assembly is composed of a wheel rim, a magnetic conducting ring in left biased mounting, a fixing ring and a permanent magnet and mounted with the stator assembly in a matched manner, the stator assembly is composed of an iron core and a through groove used for mounting of a winding, silicon steel sheets are arranged on the outer circumference of the iron core and are of a stacked structure, a fixing shaft sleeve is arranged at the center of the iron core in a right biased manner, a fixing support is arranged on the outer circumferential side of the fixing shaft sleeve, the fixing shaft sleeve and the motor shaft are in interference fit, and a knurled structure is arranged at a position where the motor shaft and the fixing shaft sleeve are connected. A motor structure is designed in an optimized manner, and a biased mounting mode is adopted, so that diameter size of the stator assembly and the rotor assembly is increased, key performance parameters like torque and efficiency of the motor are enhanced, and load-carrying capacity of a whole vehicle is improved.

The present invention provides a mounting construct of vehicle communicating device which can improve the operability of the vehicle communicating device for motor bicycle. In the mounting construct (10a) of vehicle communicating device, as the vehicle communicating device, a card reading part (100a) of an ETC vehicle carrier (100) is collocated in a movable receiving box (76a) which is protruding from the appearance design surface of the vehicle. The receiving box (76a) constructs a receiving part (74) arranged between a front hood (32) covering on the front of the vehicle and the vehicle seat (20).

The invention relates to a double dust cover-type front shock absorber which comprises a shank and a rod cylinder, wherein a rod cavity is formed in the rod cylinder; one end of the shank is inserted into the rod cavity, so as to be in movable fit with the rod cylinder; a skeleton dust cover is arranged on the opening of the rod cavity, and is in sliding and sealed fit with the shank; a corrugated dust cover is arranged on the outer wall, corresponding to the opening of the rod cavity, of the rod cylinder. The front shock absorber has the advantage that the rod cavity can be protected with the double dust covers, so that dust is prevented from entering the rod cavity to damage an oil seal, that is, the service life of the oil seal can be prolonged.

The invention discloses a high leak tightness sash window, consisting of a window frame, window sashes, guide sliding blocks, pulley wheels, a slideway and a sealing device, wherein, an upper arm and a lower arm of the window frame are provided with vertical concave chutes, a sealing frame is arranged on the periphery of a protruding side wall in the inner side of the window frame, each window sash is respectively slidebly arranged between the concave chutes of the upper arm and the lower arm of the window frame by the upper and lower guide sliding blocks and the pulley wheels, a transverse concave chute is respectively arranged between the vertical concave chutes corresponding to each guide sliding block and each pulley wheel of the window sash close to a left arm and a right arm of the window frame and the internal side protruding side arm of the upper arm and the lower arm of the window frame; each window sash can slide left and right and lengthways and can be closed widthways to fit with sealing strips on surrounding sealing frames to realize high leak tightness. The sash window has the advantages of convenient use of the sash window and high leak tightness of a casement window, overcomes the sealing dead angle and fulfills the purpose of saving energy and protecting environment.

The invention discloses a dust-proof LCD display screen damping device. The device comprises a base, bolts, a motor and nuts. The exterior of the base is provided with power buttons, and a rotating disc is fixed to the upper ends of the power buttons; a dust suction box is installed at the upper end of the rotating disc, the bolts are disposed at the lower end of the dust suction box and penetratethrough a function box, and the dust suction box is installed at the bottom of the function box; damping springs are connected to the upper end of the dust suction box, and a metal frame is mounted at the upper ends of the damper springs; an air box is arranged in the metal frame, and an LCD display screen is fixedly arranged in the air box; the left side of the motor is connected with a fan, a VGA interface is installed at the lower right end of the metal frame, a power interface is fixed to the lower end of the VGA interface, and the nuts are mounted at the upper ends of the bolts. The dust-proof LCD display screen damping device is provided with the rotating disc so that a user can conveniently rotate a screen according to his/her own visual effect when moving or rotating the display screen to achieve the best viewing effect.

The invention discloses a dust cover for a front swing arm of a minibus, which is provided with a dust cover main body (1) with an accommodating cavity (7). The outer wall of the lower end of the dust cover main body (1) is provided with a ring-shaped groove (4). The upper end of the dust cover main body (1) is provided with a sealing port (2). The sealing port (2) is communicated with the accommodating cavity (7) of the dust cover main body (1). An inner hoop (3) is embedded inside the upper end of the dust cover main body (1). The inner hoop (3) is surrounded around the sealing port (2). According to the invention, a unique closed-looped inner hoop structure is adopted to fasten the sealing port, so that not only is the labor intensity of assembly reduced, but also the assembling efficiency is improved. Moreover, the dustproof effect can be ensured and foreign matter and dust are effectively prevented from entering a pin head of a ball pin.

The invention discloses a large underground engineering cavern construction ventilation structure which comprises an air duct and an exhaust pipe, the exhaust pipe is arranged on the outer side of the end of the air duct, a corrugated cover is communicated between the exhaust pipe and the air duct, an auxiliary ring is rotationally matched with the outer portion of the air duct, and the auxiliary ring is arranged on the outer side of the air duct. And a double-shaft motor for driving the auxiliary ring to rotate is fixed on the top side of the air duct. The device has the beneficial effects that the exhaust pipe rotating periodically is arranged at the air outlet end of the fan, the double-shaft motor for driving the fan to rotate is used for synchronously driving the auxiliary ring to rotate, and then the push rod and the guide wheel on the outer side of the auxiliary ring are used for sequentially pushing the pressing plates on the multiple sets of limiting rods to move; the angle adjusting process of the exhaust pipe is achieved under the pushing effect of the limiting rod, the exhaust pipe with the direction automatically changed serves as an air outlet end opening of the draught fan, then uniform ventilation can be conducted on the inner area of a large-size cavern, and the problem that the ventilation effect is poor due to the fact that the space size of an existing underground cavern is large is solved.

The invention discloses an artificial intelligence electrical control device, and relates to the technical field of electrical equipment. The artificial intelligence electrical control device comprises a cabinet; a first ventilation hole is formed in the lower surface of the cabinet; a first dustproof net sleeves in the first ventilation hole; and the left and right side surfaces of the first dustproof net are respectively in lap joint with the left and right side surfaces of the inner wall of the first ventilation hole. According to the artificial intelligence electrical control device disclosed by the invention, a fan can generate constant suction at the position of an exhaust inlet while working; high-temperature air in the cabinet can sequentially flow through a second probe, a hard plastic pipe, the fan and a hose under the action of the suction, and then, is injected into a first probe; high-temperature air in the first probe is conveyed to the outside of the cabinet through a second ventilation hole; therefore, the heat dissipation purpose is achieved; when the electrical control device is in the working state for a long time, the temperature in the cabinet still can be keptin a certain range; and thus, the electrical equipment in the cabinet can be well protected.

The invention provides a miniature microphone dustproof device and an MEMS microphone. The miniature microphone dustproof device comprises a supporting carrier with a through hole and a dustproof filmarranged on one side of the supporting carrier. The dustproof film comprises a fixed part arranged on the supporting carrier, a filtering part suspended in the through hole, and a control part connected with the fixed part and the filtering part; and the elastic constant of the control unit is greater than the elastic constant of the filter unit. According to the invention, buckling deformation of the dustproof film can be concentrated on the control part, and the stable performance of the filtering part is ensured through the control part.

The invention discloses a wheel cylinder for automobile, which comprises a cylinder body. The cylinder body is provided with a chamber. A deflating bolt and an oil inlet are communicated on the side wall of the chamber. A deflating cap is arranged at the top end of the deflating bolt. Left and right pistons are respectively installed at left and right ends of the chamber in a sliding way. Left and right packing leather are respectively arranged on adjacent surfaces of the two pistons. The packing leather is fixedly installed on one of side walls of the left and right pistons respectively. The packing leather is adhered tightly to the side wall of the chamber. Spring bases are fixedly installed on the end surfaces of the packing leathers. A spring is locked between the two spring bases. The wheel cylinder has a simple and reasonable structure, and is hermetical and dustproof effectively.

The invention discloses a rotary-opening dustproof cup used for brushing teeth. The rotary-opening dustproof cup used for brushing teeth comprises a cup body, a fixed semicircular baffle plate, a rotary sector baffle plate, a supporting cylinder, a rotating hole, a rotating shaft and a rotary button. The rotary-opening dustproof cup used for brushing teeth is simple in structure and principle, the rotary sector baffle plate is staggered and rotatingly connected on a half of the cup, to shield the upper end of the cup, the cup can be dustproof, a user can safely and trustingly use the cup.

The invention discloses a waterproof and dustproof power distribution cabinet which comprises a cabinet body, heat dissipation grooves are formed in one end of the top of the cabinet body and one ends of the bottoms of the two sides of the cabinet body, dustproof nets are installed in the four heat dissipation grooves, and guide rods are slidably connected to the four corners of one end of the top of the cabinet body. The heat dissipation grooves are formed in the top and the two sides of the cabinet body respectively, so that air circulation in the cabinet body can be effectively improved, and the heat dissipation effect of the power distribution cabinet is improved; a dustproof net is arranged in the heat dissipation groove, so that the dustproof effect of the power distribution cabinet can be effectively improved; by arranging the cabinet top sealing mechanism, the waterproof sealing mechanism and the cleaning assembly, opening and closing of the heat dissipation grooves can be controlled according to weather conditions, the heat dissipation effect of the power distribution cabinet is ensured in sunny weather, the heat dissipation grooves are sealed in cloudy and rainy weather, the waterproof effect of the power distribution cabinet is improved, and the heat dissipation grooves can be opened and closed at the same time.

The invention belongs to the technical field of outdoor wall-mounted cases and relates to an outdoor wall-mounted case with a dustproof function. The outdoor wall-mounted case comprises a case body and a waterproof plate; a sliding rail arranged in the case body; a sliding frame arranged on the inner side of the sliding rail; a screen plate and a filter screen arranged on the sliding frame; bristles arranged on the other side of the screen plate; a rack arranged at the other end of the sliding frame; a gear is meshed with the outer side of the rack; a connecting shaft is arranged on the inner side of the gear; a rotating plate is arranged at the other end of the connecting shaft; pawls are arranged at the two ends of the rotating plate; an inner ratchet wheel is arranged on the outer sides of the pawls; a connecting plate is arranged at the other end of the inner ratchet wheel; a transmission shaft is arranged at the other end of the connecting plate; a chain wheel is arranged at the other end of a transverse rod; and fan blades are arranged on the outer side of the transverse rod. According to the outdoor wall-mounted case with the dustproof function of the invention, the sliding frame, the pawls, the inner ratchet wheel and the fan blades are adopted, on the premise that the dustproof effect is guaranteed, dust in a waterproof plate and air inlet holes can be removed when the filter screen is disassembled, and the fan blades can be driven to rotate to blow the dust outwards, so that the dust is prevented from entering the box body.