19results about How to "Guaranteed dustproof effect" patented technology

The utility model discloses a kind of dustproof water pumps of shell, comprising: pump shell, dustproof component;Pump shell includes the front shell and rear shell of its front and rear end.The utility model said a kind of dustproof water pumps of shell, the rear shell of pump shell rear end is equipped with sealing cylinder between rear shell and drive shaft, can pass its inside and outside multiple groups of first sealing ring and second sealing ring, multiple layers of sealing and the connection between rear shell and drive shaft, to improve the sealing property of rear shell rear end, simultaneously, inside and outside compression inside sealing pad and outer sealing pad between front shell and rear shell, double-layer sealing between the front shell and rear shell on pump shell can also be carried out, and then pass multiple sealing structures between pump shell shell and drive shaft, to effectively block dust from outside into pump shell, and the first sealing ring and second sealing ring of inside and outside of sealing cylinder between rear shell and drive shaft, and inside sealing pad and outer sealing pad between front shell and rear shell, can be conveniently disassembled and adjusted.

The utility model discloses a dustproof feed filling device relates to feed filling technical field, including the feed tank, the feed tank side is equipped with the fixing frame, the feed tank feeding end is equipped with the material collecting hopper, the feed tank discharge end is equipped with the filling cylinder, the feed tank below is equipped with the support frame, the filling cylinder penetrates the support frame, and the feed bag is fixed through two clamping arms, and the filling cylinder is inserted into the bag, and the connecting place of feed bag and filling cylinder is locked by the limiting hoop, provides the dustproof condition of filling, and this structure ensures that the feed does not receive external interference in the filling process, effectively prevents the fine feed particle from flying and scattering, thereby guarantees the dustproof effect and filling quality of filling operation, through the suction head of air extractor is communicated to the breather groove and carries out the centralized suction, simultaneously, the limiting pressure relief channel built -in in the breather groove guides the airflow, forms the directional airflow path, effectively has restrained the diffusion of the feed particle with the air exhaust, and has improved the dust removal efficiency of air extractor significantly.

This utility model discloses a roof structure for a commercial vehicle, including a roof panel and four mounting plates. The four mounting plates are evenly fixedly installed on the front and rear side walls of the roof panel. Two lights are fixedly installed on the lower surface of one end of the roof panel. A vent is formed through the lower surface of the roof panel, and a mounting bracket is fixedly installed on the lower surface of the roof panel around the vent. This utility model, through the coordination of components such as the roof panel, mounting plates, lights, vents, mounting brackets, mounting frames, sliders, fixing rods, dustproof nets, pressing frames, fixing frames, positioning rods, pull plates, push plates, and springs, achieves the function of quick installation and removal of the dustproof net. It improves the installation method of dustproof nets on the roof of commercial vehicles in the prior art, allowing for quick installation and removal of the dustproof net when cleaning or replacement is required, saving time and effort, thereby ensuring the dustproof effect of the dustproof net and improving the practicality of the roof of the commercial vehicle.

This utility model discloses a frequency converter enclosure assembly with an anti-electromagnetic interference shielding layer, belonging to the technical field of frequency converter enclosure assemblies. It includes an enclosure and a hinged door on the front of the enclosure. The door is equipped with a sealing component. Openings are provided at the lower ends of both sides of the enclosure, and dustproof components are installed inside the openings. Cooling fans are installed on both sides of the enclosure above the openings. A metal shielding frame is installed inside the enclosure. This utility model can achieve efficient heat dissipation while ensuring the airtightness and anti-electromagnetic interference performance of the frequency converter enclosure. The concave design increases the flow path and improves heat exchange efficiency. Simultaneously, airflow through the top of the metal shielding frame and the gaps in the heat-conducting plate carries away heat. This dual-path rapid heat dissipation prevents heat accumulation and eliminates the need for numerous ventilation holes. It maintains the enclosure's airtightness to prevent impurities from entering while ensuring anti-electromagnetic interference effectiveness, thus ensuring stable operation of the frequency converter.

The utility model discloses a telescopic high-pressure water mist gun which comprises a handle, a connecting pipe is arranged on the handle, a protective shell is fixedly arranged on the connecting pipe, one end of the connecting pipe extends into the protective shell and is fixedly provided with a hose, one end of the hose is fixedly provided with a spray head, and a fixing frame is movably arranged on the protective shell. The lower end of the fixing frame extends into the protective shell to be fixedly connected with the spray head, a lifting plate is movably arranged in the fixing frame, two fixing blocks are fixedly arranged on the lifting plate, four fixing grooves matched with the fixing blocks are formed in the protective shell, a spring is fixedly connected between the lifting plate and the fixing frame, and a pressing rod is fixedly arranged at the upper end of the lifting plate. The upper end of the pressing rod extends out of the fixing frame, the protective shell is provided with a moving groove matched with the fixing frame, the lower end of the spray head is fixedly provided with a moving seat, the moving seat is slidably connected with the protective shell through a track structure, the spray head can be quickly moved out by pressing and pushing the pressing rod, operation is easy, and the time for moving out the spray head is saved.

The utility model discloses anti-static flame-retardant work clothes, and particularly relates to the technical field of protective clothes, the anti-static flame-retardant work clothes comprise a work clothes jacket and work clothes trousers which are matched for use, the work clothes jacket and the work clothes trousers are made of anti-static flame-retardant fabric, and a lining strip is sewn on the inner surface of the bottom of the work clothes jacket. A first hook-and-loop fastener male face is arranged on the inner surface of the lining strip, a first hook-and-loop fastener female face is arranged on the outer surface of the top of the work clothes trousers, a neck protection part is arranged on the top of the work clothes jacket, and a cap part is arranged on the top of the neck protection part. An elastic structure at the bottom of the upper garment of the work clothes in the prior art is designed into a structure bonded with the trousers of the work clothes through the hook-and-loop fasteners, so that the dustproof effect after wearing is kept, the tightening feeling to the abdomen is reduced, the movement of a user after wearing is not affected, the position is not changed, and the work clothes are convenient to wear. And the elbow joint of the user can be effectively protected.

The utility model discloses a closed projection ray machine heat dissipation structure, which comprises a shell, a lens, an LCD screen and a light source, a first radiator is arranged in the shell and divides the interior of the shell into an inner circulation area and an outer circulation area, and a plurality of heat dissipation fins are arranged on the upper surface and the lower surface of the first radiator. The heat dissipation fins extend to the inner circulation area and the outer circulation area respectively, the light source is arranged on one side of the inner circulation area, the lens is arranged on the surface of the shell and located on the other side of the inner circulation area, the LCD screen is arranged between the light source and the lens, an air inlet and an air outlet are formed in the two sides of the outer circulation area respectively, an air inlet fan is arranged on one side of the air inlet, and a second heat dissipation device is arranged at the air outlet. The second radiator is attached to the light source. According to the heat dissipation structure of the closed projection ray machine, the inside of the shell is separated, heat dissipation is achieved, meanwhile, the dustproof effect of an LCD screen, a light source and a lens is guaranteed, and the service life is prolonged.

The utility model discloses a locking type electric box window of an electric meter box, which comprises a shell, a guide rail is arranged on the shell, a lifting door plate is connected onto the guide rail in a sliding manner, the lifting door plate comprises an inner door plate and an outer door plate, and a reserved gap is arranged between the inner door plate and the outer door plate. The inner door plate and the outer door plate are arranged on the two sides of the shell respectively, the reserved gap is aligned with the shell, opposite elastic pieces are arranged on the inner door plate and the outer door plate, a clamping gap is reserved between the elastic pieces, and the size of the clamping gap is smaller than the thickness of the shell. According to the electric meter box locking type electric box window provided by the utility model, when the lifting door plate is opened, the lifting door plate can be automatically fixed and limited, so that the situation that additional support is needed is avoided, and the data recording efficiency is improved.

The utility model discloses a wheel edge oil seal dustproof structure of a drive axle of a backhoe loader. The wheel edge oil seal dustproof structure comprises a hub and a steering knuckle. The hub is provided with an annular notch in the outer circle of the end face of the oil seal installation base, an annular groove is formed in the position of the oil seal installation shaft of the steering knuckle, the annular notch is sleeved with the annular groove, and a dustproof structure for the oil seal is formed. The dustproof oil seal is simple and compact in structure, low in manufacturing and maintenance cost, good in dustproof effect and reliable to use, and solves the problems that the dustproof effect of the oil seal is poor due to the adoption of a dustproof cover, and the dustproof cover is easy to collide and deform during operation to cause interference with a wheel shell in the prior art.

The utility model belongs to the technical field of blueberry beverage production, and particularly relates to mixing equipment for blueberry beverage production, which comprises a mixing box, a mixing component is arranged in the mixing box, a fixing component is arranged at the upper end of the mixing box, guide blocks are fixedly mounted at two ends of the mixing box, and the guide blocks are fixedly connected with the fixing component. The two guide blocks are each slidably connected with two sliding blocks, the upper ends of the four sliding blocks are each provided with a connecting block, and a dustproof plate is jointly connected between every two connecting blocks on the same side. According to the blueberry beverage mixing device, blueberry beverages can be mixed through the mixing assembly, and the stirring position can be adjusted leftwards and rightwards, so that the blueberry beverages in the mixing box are fully mixed, beverage raw materials are uniformly distributed, and the taste is ensured; and through cooperation with the arrangement of the fixing assembly, the two dustproof plates can be fixed, the dustproof effect in the mixing box is guaranteed, the problem that beverages splash out during stirring and mixing is also avoided, opening and closing are convenient, and feeding and follow-up interior cleaning are facilitated.

This invention provides a communication cabinet suitable for high-speed railway tunnels. The communication cabinet includes a cabinet body, a dustproof component, a windproof component, and a locking mechanism. The dustproof component has a dustproof net slidably mounted on the frame structure and blocking a second ventilation opening, and is detachably connected to the frame structure. The windproof component has a windproof plate covering at least the second ventilation opening, with the windproof plate positioned at a distance from the dustproof component, and is detachably connected to a windproof base. The locking mechanism has a locking end. When the windproof plate and windproof base are connected, and the locking end and limit block are locked, the frame structure is located at the first ventilation opening. When the windproof plate and windproof base are detached, and the locking end and limit block are unlocked, the frame structure moves away from the first ventilation opening. This invention solves the problem that existing dustproof protection structures cannot meet the comprehensive requirements of high reliability and high maintainability for high-speed railway tunnel communication systems.

This utility model relates to the field of mobile router technology, and more particularly to a mobile router that is easy to maintain. It includes a router body, top rods, and a dustproof mesh. The top of the router body has a mounting groove, and the bottom surface of the mounting groove has a control plate. A lifting plate is slidably connected inside the mounting groove. Connecting pieces are provided at both ends of the lifting plate. Several top rods are mounted on the top of the lifting plate. A mounting frame is provided at the upper end of the mounting groove, and a dustproof plate is connected to the inner side of the mounting frame. Through holes are provided on the top of the dustproof plate corresponding to the positions of the top rods. Sleeves are provided on the bottom of the dustproof plate corresponding to the positions of the through holes. A reset component is provided inside the sleeve, and a dustproof mesh is connected to the top of the reset component. The dustproof mesh is slidably connected to the sleeve. This utility model, by setting a dustproof mesh that can slide up and down, allows for easy removal of accumulated dust by simply pushing the dustproof mesh up to be flush with the surface of the router body.

The utility model relates to the technical field of motor manufacturing and mechanical equipment, in particular to a novel split type brushless motor which comprises a split type brushless motor body, the right end of the split type brushless motor body is fixedly provided with a rotating shaft, the lower part of the outer surface of the split type brushless motor body is fixedly connected with a connecting seat, and the connecting seat is fixedly connected with the rotating shaft. L-shaped supporting plates are fixedly connected to the front portion and the rear portion of the lower end of the connecting base, a mounting device is fixedly connected to the right portion of the outer surface of the split type brushless motor body, and a dustproof device is fixedly connected to the right end of the mounting device. According to the novel split type brushless motor, the first dustproof net, the second dustproof net and the third dustproof net are arranged, the diameters of the meshes of the first dustproof net, the second dustproof net and the third dustproof net are sequentially reduced, graded filtering is achieved, large-particle dust can be blocked, fine dust can be intercepted, dust is effectively prevented from entering the motor, and meanwhile the gradually-decreased mesh area guarantees the dustproof effect, so that the dustproof effect is improved, and the service life of the motor is prolonged. Smooth ventilation of the heat dissipation holes is ensured, and the service life of the motor is prolonged.

The utility model discloses an outdoor explosion-proof loudspeaker with a good dustproof effect, which relates to the technical field of loudspeakers, and comprises an inner shell, a permanent magnet is arranged in the inner shell, a first iron plate and a second iron plate are respectively arranged on the outer walls of the two sides of the permanent magnet, an iron column is fixedly connected to the outer wall of one side of the first iron plate, and the second iron plate is fixedly connected to the outer wall of the other side of the first iron plate. One end of the iron column penetrates through the center of the permanent magnet, the outer wall of the circumference of the permanent magnet is sleeved with a paper tube, and a copper coil is wound on the outer wall of the circumference of the paper tube. According to the utility model, the dustproof net is arranged at one end of the paper disc, so that dust and other impurities can be efficiently prevented from invading into the loudspeaker, the sound production quality is ensured, the service life is prolonged, and the dustproof net is fixed by using the magnetic attraction of the magnetic ring plate and the mounting groove, so that workers can quickly disassemble and clean the dustproof net; and meanwhile, the baffle ring plate on one side of the connecting plate plays a role in limiting the magnetic ring plate, so that the installation of the dustproof net is further stabilized, and the dustproof effect is effectively guaranteed.

The utility model discloses a product spare part storage rack library belongs to spare part storage field, including base, rotating component and storage component, rotating component sets up on the base upper end, rotating component is used for rotating to spare part, storage component fixedly connected on rotating component upper end, storage component is used for storing to spare part, the base upper end fixedly connected with dustproof component, the position of dustproof component corresponds with the position of storage component, dustproof component is used for dustproof to spare part, through setting up storage component, can adjust the position of spacing plate, realize the longitudinal spacing of car product spare part to the locking function of cooperation with the brake motor, effectively avoided the problem that the spare part was dumped or fell in the prior art because of the action of rotating centrifugal force, thereby significantly improved the stability and security of car product spare part storage.

The utility model discloses an electrical control cabinet with a protection structure, comprising a cabinet body, two sides of the cabinet body are both provided with a plurality of heat dissipation ports, the heat dissipation ports are provided with dust covers, one side of each dust cover is tightly attached to one side of the cabinet body, the dust covers are internally provided with dust screens, two sides of the cabinet body are both fixedly connected with two groups of fixing plates, and the fixing plates are fixedly connected with the cabinet body. The two sets of fixing plates are symmetrically distributed, sliding grooves are formed in the fixing plates, sliding blocks are arranged in the sliding grooves in a sliding mode, and one sides of the sliding blocks are fixedly connected with the side edge of a dust cover; and fixing holes are formed in the two groups of fixing plates. According to the electrical control cabinet with the protection structure, dust is prevented from being accumulated on the electrical components to cause accidental conduction between the electrical components, so that electrical faults and fire disasters are prevented, the internal electrical components are effectively protected, and the safety of equipment is greatly improved.

The invention discloses a full-section passive dustproof vehicle which comprises a compartment, a hanging ring, a moving mechanism, an anti-explosion pressure pump, an anti-explosion electric control box, a gas electric lock, an anti-explosion storage battery, a water tank, a water injection pipe, a water spraying pipe, a manual valve, a supporting frame, a supporting disc, an atomizing nozzle and an anti-explosion remote controller. The moving mechanism is used for being matched with a rail or the ground to achieve mutual movement. When the device is used, the carriage can be dragged through the cooperation of the existing lifting appliance in the roadway and the lifting ring, then the moving mechanism is used for being matched with a track or the ground in the roadway, the device can conveniently move in the roadway, the manual valve is opened, and then the explosion-proof pressure pump can be remotely controlled to work or not through the explosion-proof remote controller. The explosion-proof pressure pump works, water in the water tank is pumped into the supporting disc and then sprayed out through the atomization spray head, and then full-section water mist can be formed in the roadway, so that the dustproof effect is achieved.

A dustproof gate valve includes: a housing; two swing arms, one end of which is disposed on both sides of a movable ring, with a plurality of elastic elements disposed between the movable ring and a second plate; a sliding valve plate having a plate body and two roller assemblies, each roller assembly having an arm roller for respectively rolling against the two swing arms; and a driver. Each of the two swing arms has a pressure flange, and a closing positioning groove and an opening positioning groove formed by the recess of the pressure flange, allowing the arm rollers of the two roller assemblies to roll against or into the groove. When the arm roller of the two roller assemblies rolls into the opening positioning groove, the movable ring pushes against the first plate, and a sealing ring abuts against the first plate to achieve a seal.