12results about How to "Reduce contamination" patented technology

This utility model relates to the field of glove box punching technology, specifically a glove box punching mold, including a first lower mold base. A limiting screw hole 1 is fixedly provided on the inner side of the top of the first lower mold base, and a first mold groove is fixedly provided on the inner side of the first lower mold base. The limiting screw hole 1, limiting screw hole 2, and limiting screw hole 3 of this utility model facilitate fixing the first lower mold base to the lower end of the second upper mold base. The first mold groove adopts a hollow design, and the second mold groove adopts a curved design in many places, which can not only effectively reduce the contamination of foreign objects, but also increase the aesthetics. After the mold punching is completed, the servo motor inside the fixing frame starts, drives the ball screw to rotate, so that the ball nut moves back and forth, and then drives the positioning frame to move back and forth. The motor starts, drives the blowing fan to rotate, and forms air, which can blow away foreign objects on the surface of the first lower mold base to prevent the glove box from having an indentation during the punching process.

The utility model discloses a dust-free discharging device of a double-cone rotary vacuum reactor, which comprises a dust hood, the dust hood is arranged at the top end of a rigid communicating pipe, the rigid communicating pipe is arranged along the vertical direction, the bottom end of the rigid communicating pipe is connected with the top end of a flexible communicating pipe, and the bottom end of the flexible communicating pipe is fixedly arranged on a sealing cover at the top of a collecting hopper. The bottom of the collecting hopper is connected with the input end of the conveying spiral cylinder, and a material waiting bin is installed below the output end of the conveying spiral cylinder. The side part of the rigid communicating pipe is connected with a lifting assembly; the lifting assembly can be used for buckling the dust removal cover on the outlet end of a discharge valve at the bottom of the double-cone reactor; a conical hole is formed in the dust removal cover, an annular clamping cavity is formed in the periphery of the conical hole, the annular clamping cavity and the conical hole are communicated through a plurality of evenly-distributed air suction holes, and a negative pressure connector communicated with the annular clamping cavity is installed on the side portion of the annular clamping cavity. The discharging device provided by the utility model ensures that no dust and raised dust are generated during discharging, and meanwhile, material loss and contamination are reduced.

The utility model provides a material transfer device and a prepreg resin film production unit, the device comprises: a support column, the first end of which is vertically mounted on the ground; the rotating shaft is installed at the second end of the supporting column, and the axis of the rotating shaft is perpendicular to the axis of the supporting column; one end of the supporting arm is connected with the rotating shaft; the clamping assembly is installed at the end, away from the rotating shaft, of the supporting arm and used for clamping / loosening materials. When a resin film roll needs to be transferred, a supporting shaft of the resin film roll can be clamped through the clamping assembly, then the clamping assembly is driven by the supporting arm to rotate so that the resin film roll can be moved from one side of the supporting column to the other side of the supporting column, and in the process, the supporting column in the material transferring device is fixed to the ground; the resin film is not easy to move back and forth among a plurality of production workshops or a plurality of working places, so that the resin film is not easy to be contaminated by foreign matters, the situation that the resin film is judged as a defective product due to the fact that the foreign matters fall on the resin film is greatly reduced, and the product yield of overall production is improved.

The utility model discloses a tooth surface cleaning device, belongs to the technical field of tooth cleaning, and aims to solve the problems that a brush head part of a toothbrush in the prior art is in an exposed state, particularly in the carrying process, the brush head part is easily in contact with foreign objects, bacterial contamination is caused, and the cleaning quality is influenced. Comprising a grab handle, a driving mechanism, a sealing cover and a brush head, the grab handle is of a circular-tube-shaped structure and is hollow, the sealing cover is arranged at one end of the grab handle, the driving mechanism is installed at the end, away from the sealing cover, of the grab handle, and the driving mechanism slides into the grab handle along the end of the grab handle; a brush head is installed at the end, facing the sealing cover, of the driving mechanism, a holding part is arranged on the outer wall of the grab handle, and an anti-sliding block is arranged on the holding part in a protruding mode. According to the tooth surface cleaning device, through the arrangement of the slidable brush head, when the tooth surface cleaning device is used outdoors, the brush head does not make contact with foreign objects, bacterial contamination is reduced, the cleanliness of the brush head is improved, meanwhile, the brush head is protected, and tooth cleaning hygiene is higher.

This utility model discloses a smart watch case with a snap-fit ​​structure, including a watch case base. A bottom shell is fixedly installed at the bottom of the watch case base. Fastening bolts are slidably connected to the four sides of the inner side of the bottom shell. Buttons are fixedly installed at the four corners of the watch case base. A transparent screen is fixedly installed in the center of the top of the watch case base. A locking block is snapped at the four corners of the top of the watch case base. A protective film is fixedly connected to the top of the four locking blocks. Through the locking blocks and the protective film, a protective film can be applied to the transparent screen, which can build a practical protective barrier for the transparent screen. It can effectively resist the scratches, bumps and wear that are unavoidable in daily use, prevent the transparent screen from leaving marks due to friction from hard objects such as keys and tabletops, and maintain the original smooth texture of the transparent screen. At the same time, the protective film can isolate the direct corrosion of stains such as sweat, oil, and dust, and reduce the oxidation, discoloration or staining of the transparent screen that is difficult to clean.

The application relates to the field of semiconductor wafer polishing, in particular to an interactive device for polishing silicon wafers, which comprises a fixing base, a carrier mechanism and a polishing head mechanism; a partition mechanism, which comprises a baffle plate, the baffle plate is located in a containing space, and the baffle plate is slidably connected to the fixing base along a first direction; when the polishing head is in a first state, the baffle plate is arranged on the side of the polishing head; when the polishing head is in a second state, the baffle plate is arranged directly below or on the side of the polishing head; and a cleaning mechanism, which is located on the side of the containing space, and the cleaning mechanism has at least a first mode and a second mode; in the first mode, the baffle plate is arranged between the polishing head and the carrier, the cleaning mechanism enters between the polishing head and the baffle plate and cleans the polishing head; and in the second mode, the cleaning mechanism is not in action. The technical problem that the silicon wafers are easily contaminated during the interaction process is solved, and the technical effect of reducing the contamination of the silicon wafers during the interaction is achieved.

This application provides a zebra crossing marking device for application, relating to the field of zebra crossing construction. This application involves setting a second hollow hexagonal plate and an internally threaded tube on a hollow cotton rope. After the hollow cotton rope is wound up, the internally threaded tube is connected to a first externally threaded tube to seal the first externally threaded tube, thereby preventing powder from seeping out of the first externally threaded tube, reducing powder waste, lowering construction costs, and protecting other tools from contamination by successfully preventing powder seepage, thus reducing maintenance and replacement costs caused by tool contamination.

The utility model relates to the technical field of building decoration cabinets, and discloses an assembly type building decoration and storage integrated cabinet structure which comprises a cabinet body, a cooking bench is arranged at the top of the cabinet body, a cleaning pool is arranged at the top of the cabinet body, and an antifouling mechanism is arranged at the top of the cabinet body. According to the assembly type building decoration and storage integrated cabinet structure, by arranging the anti-fouling mechanism, when the cabinet body is installed, the surrounding plates are installed on the periphery of the top of the cabinet body, oil stains on the top of the cabinet can be prevented from leaking into wall seams or dripping into a cabinet door of the cabinet body, and by arranging an oleophobic plate and an oleophobic hole, the oil stains on the top of the cabinet can be prevented from leaking into the wall seams or dripping into the cabinet door of the cabinet body; oil stains are injected into the collecting box through the oil drainage holes by using cleaning cloth, the collecting box is taken away and cleaned when garbage is cleaned, the cabinet can be prevented from being directly contaminated by oil stains on the cabinet surface when the cabinet is used by arranging a high antifouling plate, and the antifouling mechanism can be provided with an oil baffle plate, so that the situation that the oil stains contaminate clothes is reduced, and the oil stains are easy to clean.

This utility model discloses a teething toy, relating to the field of maternal and infant product technology. The teething toy includes a baffle, a mouthpiece, a protective cover, a stopper, and a handle. The baffle is petal-shaped, which can catch food juices and saliva flowing from the mouthpiece, preventing liquid from flowing onto the hands to ensure hand hygiene and reduce the cleaning burden on parents. It also forms a natural limit against the outside of the mouth to prevent the mouthpiece from inserting too deeply. The mouthpiece is integrally formed at the narrow end of the baffle and communicates with its interior. The protective cover is detachably connected between the baffle and the mouthpiece and can cover the mouthpiece. The stopper is integrally formed with the handle and can pass through the inside of the baffle and be detachably connected to the mouthpiece.

The utility model discloses a kind of TO-3PF frame strip transfer boxes, including transfer box main body, several clamping grooves are set on the symmetrical two inner walls of transfer box main body, the clamping groove on two inner walls one-to-one correspondence constitutes installation area, the height difference exists in two corresponding clamping grooves, and side edge baffle strip is slidably connected in the two side ends of transfer box main body.This utility model mainly passes through the optimization design of a kind of TO-3PF packaging product frame strip transfer box, so that when using the frame strip transfer box of the present application, product can be better loaded, ensure the stable of TO-3PF product in the transportation process, solve the batch transfer problem of TO-3PF frame strip product after die-bonding welding line completion to plastic package, reduce contamination and damage in product transfer process.

The utility model discloses an anti-toppling toilet brush appliance convenient to drain, and relates to the field of toilet brush appliances, the anti-toppling toilet brush appliance convenient to drain comprises a base, the top of the base is fixedly provided with a placing rack, the placing rack is internally provided with a placing cylinder, the top of the placing cylinder is provided with a placing groove, and the outer wall of a toilet brush is fixedly provided with a clamping block. And a gasket is mounted at the bottom of the toilet brush. The problem that stains on toilet cleaning tools are extremely prone to staining the inner wall of a toilet brush appliance is solved, when a person places a used toilet brush in the placing frame, the U-shaped clamping block on the outer wall of the toilet brush is inserted into the placing groove in the top of the placing frame, the placing frame fixes the clamping block through the placing groove, and therefore the toilet brush can be conveniently placed in the placing frame. The toilet brush is stably placed in the placing cylinder and makes contact with the inner wall of the placing cylinder through the gasket, the contact area of the toilet brush and the inner wall of the placing cylinder is reduced, and therefore the situation that stains on the toilet brush make contact with the inner wall of the placing cylinder and are contaminated by the inner wall of the placing cylinder is reduced.

The temperature and humidity regulation and control device comprises a heat preservation box body and an electric control system, the left portion of the heat preservation box body penetrates through the heat preservation box body, a box door capable of being opened and closed is installed on the left portion of the heat preservation box body, an exhaust pipe penetrating up and down is fixed to the upper left portion of the heat preservation box body, and a three-way pipe is fixed to the upper right portion of the heat preservation box body; a first electric valve for controlling on-off is installed on a through opening in the upper portion of the three-way pipe, a second electric valve for controlling on-off is installed on a through opening in the left portion of the three-way pipe, and a draught fan is installed on a through opening in the bottom of the three-way pipe. Water drops condensed on the surfaces of the pears are separated and gathered through the supporting disc, discharged through the through holes in the wavy bottom and then collected by the water collecting groove, so that contamination of the water drops to other pears is greatly reduced, and infection and damage are reduced; the upper sensor assembly, the electric refrigerating device, the electric heating device and the lower sensor assembly which are arranged on the upper portion and the lower portion of the heat preservation box body respectively are matched with rotation of the draught fan so that the temperature and the humidity in the heat preservation box body can be more uniform.