2390results about How to "Improve dustproof effect" patented technology

An electronic device has an opening in a case, a lid member that includes a first lid member having a pair of first engaging sections for putting a lid on the opening at its both ends, a second lid member that has a pair of second engaging sections engaging with the first engaging sections and slides on a main surface of the first lid member, and a projection disposed at an end of the sliding direction of the second lid member. The case has an engaging hole engaging with the projection disposed on the second lid member.

A structure holds a display panel arranged inside a cabinet from the both sides by means of a holding member and a frame portion, which are supported by the circumferential surface section, so as to reduce thickness and frame width without using a bezel and to ensure rigidity. The cabinet is provided with a frame portion positioned on the display surface side of the display panel, a circumferential surface portion positioned at the periphery of the display panel, and a rear surface portion covering the other surface side of the display panel. A protruding section is arranged on the outer circumference side of the periphery of the display panel and the holding member to extend from the display surface side of the display panel toward the side opposite to the display surface, on an inner surface of the frame portion. A reinforcing section is arranged for connecting the inner circumference section of the protruding section with the inner surface section of a frame portion. The protruding section is provided with connecting sections, which are integrally formed with the inner surface of the frame portion, annularly arranged on the outer circumference of the display panel, and integrally formed at a plurality of positions on the protruding section in the circumference direction. The holding member has a section to be connected with the connecting section.

The invention relates to a conductive rubber and an application thereof. The conductive rubber is manufactured by the composite of rubber and metal fiber sintered felt in a mould pressing or injection mode; the metal fiber sintered felt is provided with pores which are at least filled with rubber. According to the invention, the metal fiber sintered felt is adopted to replace the traditional metal sponge, metal foam or metal nets to be composited with the rubber, the manufacturing molding is convenient, and the integral conductive performance can be improved; and the conductive rubber can be punched into small round grains, the conductive rubber is used in buttons of a conduction switch of a circuit board as a conductive contact element.

A dust-proof, reflecting mirror comprising a reflecting mirror substrate, a dust-proof coating having fine surface roughness, which is formed on a reflecting surface of the reflecting mirror substrate, and an outermost water-repellent or water/oil-repellent coating.

The invention relates to a positioning sleeve for an electrical drill dust collector and an electrical drill dust collector using the positioning sleeve. The positioning sleeve comprises: a sleeve portion coupled with a flange at a front edge of an electrical drill and a support body forward extended from the sleeve portion, surrounding and isolating a rotated portion of the electrical drill to enhance the drill operating safety. The electrical drill dust collector using the aforesaid positioning sleeve comprises: a fixing base fixing on the support body, a telescoping sleeve having a ring body at an front end thereof, a dust collection section at a front end section thereof and a bellows section at a tail end section thereof, and an elastic member having a positioning end connected to the fixing base and a free end thereof connected to the ring body to improve the dustproof effect.

An optical component includes: a multilayer inorganic thin-film on a substrate, wherein the inorganic thin-film is formed by laminating a plurality of layers made of silicon oxide and a plurality of layers made of metal oxide, the metal oxide is metal oxide containing any one of zirconium, tantalum, and titanium, the layers made of silicon oxide include a low-density silicon oxide layer and a high-density silicon oxide layer having a density higher than the low-density silicon oxide layer, the outermost layer of the inorganic thin-film is the low-density silicon oxide layer, and the surface roughness of the outermost layer of the inorganic thin-film is equal to or greater than 0.55 nm and equal to or smaller than 0.7 nm.

A reinforcing bar binding machine is provided with a feed means for feeding a wire from a wire reel rotatably mounted on a binding machine body, a braking means for braking a rotation of the wire reel, and a control means that starts a braking to the rotation of the wire reel by the braking means after the wire is fed to a predetermined amount by the feed means.

The invention discloses a clean and dust-proof crane which comprises a crane and a dust remover. The crane comprises a crane cart end beam structure, a main beam, and a trolley; exsertion gears and wheels are both made of dust-free materials such as nylon or hard plastic; the cart end beam structure and the main beam are both made of stainless steel material; wheels of the cart and wheels of the trolley respectively have a dust-proof difference; the lifting steel wire rope is formed of stainless steel wires and the lifting steel wire rope and the pulley are all sealed in a dust-proof cover; a dust-proof safety slip line with a dust-proof device disposed at the lower part is adopted; the turbine fan of the wind-guiding wheel of the dust remover is fixed on the shaft of a motor, and the motor is fixed on a rectangular body by mounting feet; a dust collecting filter is disposed at the lower part of the turbine fan; the whirlwind dust collector includes a multi cyclone unit having a first cyclone and a secondary cyclone disposed outside the first cyclone. The crane has the advantages of excellent dust-proof effect and high efficiency, and is convenient to use.

The invention discloses a solar terminal box which is simple in structure and small in volume and comprises a box body, a bottom cover and a surface cover, wherein the bottom cover is matched with the bottom of the box body; the surface cover is bucked on the top of the box body; the box body is provided with a containing space I with an opening facing the bottom cover and a containing space II with an opening facing the surface cover; a wiring terminal and a diode are arranged in the containing space I; the containing space I forms an adhesive pouring area by pouring potting adhesive; an air vent is arranged on the side surface of the box body; the bottom cover is fixed on the box body in an ultrasonic welding manner; outgoing included angles of two electrical cables at two end parts of the box body of the terminal body are right angles; the solar terminal box is simple to install, is welded in an ultrasonic welding process and is firm in structure; a vertical line outgoing manner is adopted in the electrical cables so that when the solar terminal boxes are connected to each other, the bending and the stress of the electrical cables can be reduced; and the bottom of the adhesive pouring area is arranged on a solar substrate in a suspending manner, and the air vent is communicated with the bottom of the adhesive pouring area in a suspending manner, thereby being beneficial to heat dissipation when the diode works.

A multifunctional folding saw bench, a fixing bench face is provided in the right side of the support body, a movable push plate is paralleled to the fixing bench face, a vertical locating bar moving horizontally is provided on the movable push plate, a self-elevating type horizontal locating bar is provided in the front edge of the push plate support of the movable push plate, the suspending guide bearings are provided on both sides of the push plate support, the push plate vertical guide is arranged opposite to the suspending guide bearing, the base part of the push plate vertical guide is fixed coupling with the support vertical square tube on the support body, a suspending support bearing is provided inside of the support vertical square tube, a push plate locating guide is provided in the middle of the push plate support base, a supporting guide of the push plate support is provided on the support body of the base of the push plate locating guide, a supporting bearing and a locating guide bearing are provided on the supporting guide rail, the technique project that the push plate locating guide is movable housed between the locating guide bearings on the supporting bearing of the supporting guide of the support settles the defect of existing saw bench with single function; which is widely adapted for finishing worksite, constructing worksite, furniture factory and packing case making and so on woodworking and spacious individual users.

The invention discloses a method for producing ultra-high molecular weight polyethylene cotton-type anti-cutting gloves. The gloves are formed by mixing and weaving of yarns such as ultra-high molecular weight polyethylene/polyester staple fiber blended yarns, polyester spandex wrap yarns, polyvinyl chloride (PVC) coated glass fiber spandex filament yarns and elastic yarns, cuffs of woven gloves are closed up by knitted rib cuffs, hot melting edge wrapping and one-time forming are achieved through a hot melting machine at the temperature from 120 DEG C to 180 DEG C, and surface chemical processing is performed through water-proof finishing agents so that finished products can be obtained. According to the method for producing the ultra-high molecular weight polyethylene cotton-type anti-cutting gloves, the process is simple, large-scale automatic production can be achieved, the anti-cutting performance of the gloves is high, the elasticity is good, a user can conveniently and comfortably wear the gloves, and the operation is flexible. Besides, the dust-proof effect is good, and harm to products due to falling of fibers of the gloves can be avoided. The gloves can be widely applied to people in special industries such as automobile assembly industry, glass industry, metal rolling sheet industry, cutting industry, recovery processing industry, police and the like.

The invention discloses a plug-in assembly, and relates to the technical field of signal connection structures. The plug-in assembly is invented for solving the problem that a dustproof socket in a plug inserting direction is relatively long in the prior art. The plug-in assembly comprises a socket and a plug; the socket comprises a socket shell and a first dustproof door; a jack is formed in oneend of the socket shell; a first dustproof door cover is arranged at the jack; the first end of the first dustproof door is rotationally hinged to the socket shell; a door opening handle is arranged on the first dustproof door; the plug comprises a first inserting core and a pushing piece; the pushing piece is connected to the first inserting core; and in the process that the plug is moved for inserting the first inserting core into the jack, the pushing piece can push the door opening handle to drive the first dustproof door to turn over outwards towards the jack so as to open the jack beforethe first inserting core is inserted in the jack. The plug-in assembly disclosed by the invention can be used for realizing connection between two optical fibers.

The invention relates to a Micro USB (universal serial bus) receptacle, which comprises a PCB (printed circuit board) and an outer casing. The receptacle is characterized in that a convex block extends outwards from the side edge of the PCB, the surface of the convex block is provided with a copper coil which is connected with a PCB circuit, the interior of the outer casing is provided with a through hole, the convex block is inserted into the through hole of the outer casing to form a connecting core of the USB receptacle, and the bottom of the convex block is provided with a sealing piece which is used for sealing the opening of the through hole. The micro USB receptacle has the beneficial effects that 1. the PCB is provided with a matrix, so the material is saved, the production process is simplified, and the production cost is reduced; 2. the outer casing adopts a plastic outer casing, so the interference effect on antennas by hardware is improved, and the manufacturing cost is reduced; 3. a sealant is adopted for sealing the opening of the outer casing, so the waterproof and dustproof functions are favorably realized; 4. as the outer casing is made of plastic material, the matching degree is higher when the outer casing is assembled on an object or is arranged in a mounting hole, the gap is smaller, and the dustproof purpose is favorably realized.

The invention relates to a lunar exploration mechanical arm modular joint with the torque retention feature. The lunar exploration mechanical arm modular joint can solve the problems of high launchingcost of the modular joint of the mechanical arm of a lunar exploration vehicle and short service life of the mechanical arm of the lunar exploration vehicle. A driving device is connected with a flange disc at an input end of a harmonic reducer through a rotor shaft of a motor, a rigid gear is fixedly connected with an inner seat of an angular contact bearing, the inner seat of the angular contact bearing is fixedly connected with a casing of an input device, a flexible gear is fixedly connected with the flange disc at an output end of the harmonic reducer and an output flange disc, back-to-back angular contact bearings are arranged between the inner seat of the angular contact bearing and an outer seat of the angular contact bearing, a contact type packing sealing structure and a mechanical limiting structure are arranged between the flange disc of a sealing device and the outer seat of the angular contact bearing, and an electrical device is fixed between the inner seat of the angular contact bearing and the output flange disc. The lunar exploration mechanical arm modular joint has the advantages of power-off protection function, compact structure, light weight, low power consumption, good sealing performance, low launching cost and long service life.

The invention provides a domestic charging pile with functions of automatically removing a charging plug and performing power-off protection. The domestic charging pile comprises a box body and a charging line storage box arranged at the lower end of the box body; a switch for controlling a charging socket to be powered off or powered on is arranged on the end part of the charging socket in the box body; a telescopic connector apparatus is arranged in the middle part of the box body, and the telescopic connector apparatus triggers and presses the switch to enable the turned-on switched to be fixedly connected with the charging socket; and a control unit is connected with the telescopic connector apparatus, and by inputting charging parameters to a control panel, the control unit controls the charging socket to charge an electric vehicle. By enabling the telescopic connector apparatus to trigger and press the switch arranged on the charging socket, the charging plug is powered on and fixedly connected with the telescopic connector apparatus at the same time, so that the power-on or power-off of the charging socket can be ensured when the charging pile is charged or not charged, thereby avoiding adverse safety factors caused by electric leakage of the charging pile or electric shock of a child caused by playing and the like, and achieving high safety; and after the electric vehicle is fully charged, the charging socket and the charging plug can be separated automatically, so that the service life of the charging battery of the electric vehicle is ensured.

The invention discloses a power distribution cabinet with high dustproof and heat radiation performance. The power distribution cabinet comprises a main cabinet body and a driving motor. The driving motor is fixedly connected with the top of one outer wall at one side of the main cabinet. The inner top of the main cabinet is provided with a ventilating opening. The output end of the driving motorpenetrates through the external wall of the main cabinet body and extends in the ventilating opening. A gear fixedly sleeves the extending end of the driving motor. A gear tooth frame sleeves the gear. The gear tooth frame is internally provided with gear teeth which engage with the gear. The ventilating opening is internally and fixedly connected with a slide bar. A slide block slidably sleeves the slide bar. The top of the slide block is fixedly connected with the gear tooth frame. The bottom of the slide block is fixedly connected with an electric fan. The inner bottom of the main cabinet body is provided with a plurality of circular holes which correspond with the electric fan. According to the power distribution cabinet, through arranging the movable electric fan and a dustproof net,heat radiation capability and dustproof capability in the power distribution cabinet are effectively improved, thereby effectively preventing burndown of inner electric components in the power distribution cabinet because of overhigh temperature.

A switchgear case is partitioned into a high voltage bus bar chamber, which contains bus bars and cable heads, a high voltage device chamber containing circuit breakers and operation mechanisms and a low voltage control chamber containing a relay and measurement devices, etc., A rear wall of the case has a first suction port disposed at a lower part thereof, wherein the high voltage bus bar chamber, high voltage device chamber and the low voltage control chamber are communicated and air passing through the chambers is discharged from a first discharging port of the casing. The bus bars electrically connecting the high voltage devices in the high voltage device chamber and connecting bars connecting the adjoining bus bars and the cable heads are covered with solid insulators for solid-insulation.

The invention provides an electric air supply respirator. The electric air supply respirator comprises a respirator body, a shell, a fan, a filter tank and a power supply, wherein an end face of the respirator body is provided with a casing hole; the lower edge face of the respirator body is provided with at least one one-way exhaust valve; an end face of the shell is provided with an air inlet; the other end of the shell is provided with a flow guide plate; the flow guide plate and the shell form at least one air outlet; the air outlet is positioned in the upper side of a nose of a user. The electric air supply respirator has a good dust-proof effect, air in the respirator is fresh, and the user breathes smoothly without feeling stuffy.