706results about How to "Avoid contamination" patented technology

The invention belongs to the technical field of back contact cells, and particularly relates to a joint passivation back contact cell and a post-texturing preparation method thereof, and the method comprises the steps: S102, sequentially forming a first semiconductor layer and a mask layer on the back surface of a silicon substrate; s103, cleaning and texturing are carried out, so that a texturing surface is formed on the light receiving surface of the silicon substrate, and the maximum height of a pyramid of the texturing surface of the light receiving surface is T1; s104, sequentially forming a passivation layer and an anti-reflection layer on the light receiving surface of the silicon substrate; s105, forming a second semiconductor opening region; s106, cleaning and etching are carried out, and a groove structure is at least formed in the second semiconductor opening region on the back surface of the silicon substrate; and S107, depositing a second semiconductor layer on the back surface, wherein the second semiconductor layer comprises an amorphous passivation layer and a second doped silicon layer. Under the conditions of simplifying the process steps and reducing the material cost, the interface contact resistance of the second semiconductor opening region can be reduced, the minority carrier lifetime is prolonged, and the cell efficiency and the double-sided rate are improved.

The utility model discloses a building material surface spraying device, and belongs to the technical field of spraying. A spray gun frame is included; the negative pressure assembly is fixedly mounted on one side of the spray gun frame; the extended spray pipe is in threaded connection in the spraying pipeline of the spray gun frame; the nozzle is in threaded connection with the other end of the extended spray pipe; the positioning lantern ring is fixedly connected to one end of the extension spray pipe; the overturning rod is hinged to the outer part of the positioning lantern ring; the umbrella cloth is inserted between the two adjacent overturning rods; the stretching sleeve is elastically connected with the positioning lantern ring through a spring piece, is arranged outside the extension spray pipe in a sliding manner and is fixedly connected with a pressing rod of the spray gun frame through a pull rope; the supporting rod is hinged to the outer portion of the stretching sleeve and connected with the overturning rod in a hinged mode. According to the paint spraying device, paint liquid adsorbed and left in the mist suction pipe can be guided through the mist suction pipe with the through single end, the paint liquid is gathered into the annular cotton to be adsorbed, and therefore it is guaranteed that the device is clean, tidy and attractive in use.

The invention discloses an orthopedic surgical instrument storage and disinfection device, and belongs to the field of medical instruments, the device comprises a disinfection box, the bottom end of the disinfection box is provided with a frame, the bottom end of the frame is provided with a base, and the base is internally provided with a storage and disinfection assembly; a transverse shaft is arranged in the middle of the disinfection box, and containing grooves are formed in the six side walls of the hexagonal box. During use, a handle of a used scalpel is inserted into the slot, a doctor starts to tread the pedal, the pull rod at the top end of the pedal starts to pull the seesaw to move in the process that the pedal is treaded down, and the seesaw and the elastic piece at the end of the seesaw can jack up the ratchet wheel and twist the ratchet wheel by a certain angle; when the hexagonal box and the scalpel on the side wall of the hexagonal box are twisted to the lower portion and immersed in the disinfectant, fat and blood stains on the scalpel can be separated from the surface of the scalpel under the action of ultrasonic waves, the hexagonal box rotates 90 degrees again to enable the scalpel to be separated from the disinfectant, and the scalpel is disinfected under irradiation of an ultraviolet lamp and dried.

The invention discloses an animal husbandry and veterinary sampling detection method, and relates to the technical field of animal husbandry and veterinary sampling detection.The surface of a handle is fixedly connected with a shell, a first sleeve slidably penetrates through the upper end face of the shell, the upper end face of the first sleeve is fixedly connected with a pressing plate, and four sets of raking plates are arranged and can be attached to one another to form a cone; a pushing-open assembly, a sampling assembly and a vibration assembly are further arranged on the shell, the pushing-open assembly is used for pushing open the surface of sampled excrement, the sampling assembly is used for sampling the interior of the excrement, and the vibration assembly is used for assisting the sampling assembly to vibrate the taken-out sample down. The problems that in the prior art, due to the fact that the surface of excrement is hard and not prone to being pushed open, sampling is difficult, at the moment, workers need to push open the excrement with the help of other tools, the excrement is prone to being broken open in the pushing-open process, the surrounding environment is polluted, and more seriously, the sampling workers are likely to be infected with germs are solved.

The utility model discloses a totally-enclosed breast pump, which comprises a collecting assembly, a liquid blocking driving part and a negative pressure assembly, the collecting assembly comprises a breast sucking shield and a milk storage container, the breast sucking shield is used for fitting a breast, the milk storage container is used for collecting milk, and the breast sucking shield is communicated with the milk storage container; the liquid blocking driving piece is integrally formed on the collecting assembly and connected with the collecting assembly in a sealed mode. The negative pressure assembly is pneumatically or mechanically or electrically connected with the collecting assembly, negative pressure is applied to the collecting assembly through the liquid blocking driving piece, and the breast pump is divided into two gas-liquid separation parts through the liquid blocking driving piece. The technical scheme of the utility model provides a totally-closed breast pump capable of preventing milk from being sucked into an air path.

The invention belongs to the technical field of gear machining equipment.The multi-hole gear machining punching equipment comprises a base, a telescopic rod is installed at the upper end of one side of the base, the outer end of the telescopic rod is sleeved with a sliding sleeve, the side end of the sliding sleeve is in threaded connection with a first positioning rod, a positioning table is arranged at the front end of the sliding sleeve, and a control box is installed at the top end of the telescopic rod; the bottom end of the front side of the control box is movably connected with a movable plate, a drill bit is installed at the side end of the movable plate, a cutting fluid spraying piece is arranged at the bottom end of the movable plate, a driving piece is installed at the top of the control box, and a circulating assembly is arranged in the base. Through the arrangement of the first placing assembly and the second placing assembly, personnel can complete single-hole or multi-hole punching operation of the gear by replacing the corresponding first placing assembly or the second placing assembly, meanwhile, cutting fluid in use can be purified, the working environment of use is guaranteed, the cutting fluid is recycled, and the use cost is saved.

The utility model relates to the technical field of medical instruments, in particular to a pacemaker post-operation pressurization hemostasis device which comprises a fixing band, an adsorption component and a pressurization component. The adsorption component comprises an adsorption cylinder, a sealing film is arranged in the adsorption cylinder, a one-way air valve is further arranged on the adsorption cylinder, air in the adsorption cylinder is pumped out through the one-way air valve, a negative pressure environment can be formed in the adsorption cylinder, and the pressurization component is arranged at the top of the adsorption cylinder and used for applying compression force to the sealing film. Air in the adsorption cylinder is pumped out through the one-way air valve, so that a negative pressure environment is formed in the adsorption cylinder, and skin at a wound part of a human body shrinks towards the interior of the adsorption cylinder under the action of negative pressure suction force, so that horizontal component force which is generated by the pressurizing component and deviates from the direction of the wound can be counteracted when the wound is subjected to compression nursing; therefore, the skin tension of the wound part is effectively reduced, and the healing effect of the wound after the cardiac pacemaker operation is improved.

The invention relates to the technical field of sheet metal part machining, in particular to a scraper sheet metal part scraping device with a positioning mechanism, which comprises a base, a placing groove is formed in the upper end of the base, and two groups of symmetrical fixing blocks are fixedly connected to two sides of the placing groove in the upper end of the base; third sliding rods are jointly and fixedly connected between the two sets of fixing blocks, an adjusting mechanism is jointly installed on the outer sides of the two sets of third sliding rods, the adjusting mechanism comprises an installation block, two sets of symmetrical grinding mechanisms are installed at the positions, close to the lower end, of the front end of the installation block, and the adjusting mechanism further comprises a sliding block; the punching mechanism is installed at the lower end of the sliding block, the adjusting mechanism can enable the sliding block to move left and right while moving up and down, so that the comprehensive angle of the boring blade is adjusted, the grinding mechanism grinds the edge of the scraper cutting board, burrs left on the edge of the scraper cutting board are cleaned, and holes can be cleaned when the punching mechanism punches holes.

The utility model provides a cooling bracket for cable production, which relates to the technical field of cable production and comprises a base, supporting rods arranged on two sides of the top of the base, a top plate fixedly connected to the tops of the supporting rods and two rollers arranged between the base and the top plate. The adjusting assembly is arranged between the two supporting rods and used for adjusting the position of the roller, and the cleaning assembly is arranged at the bottom of the top plate and used for cleaning the roller. According to the cooling bracket for cable production, the positions of the roller and the bracket can be adjusted through the adjusting assembly, so that the bracket corresponding to the thickness of a cable is moved to a cable guiding line, the cable bracket can be used for cables with different thicknesses, the bracket does not need to be replaced, the cable production efficiency is improved, and the production cost is reduced. And the roller and the base can be cleaned through the cleaning assembly, dust and sundries on the surface are removed, the cable is prevented from being contaminated by dust, and the quality of the cable is ensured.

The invention discloses photovoltaic panel cleaning equipment. The photovoltaic panel cleaning equipment comprises a first rolling assembly, a second rolling assembly and a cleaning part; the cleaning piece is fixed between the first rolling assembly and the second rolling assembly, and the first rolling assembly and the second rolling assembly can move on the photovoltaic panel so as to drive the cleaning piece to move; in the moving direction of the cleaning part, under the condition that the first rolling assembly is located behind the second rolling assembly, the moving speed of the first rolling assembly is made to be larger than that of the second rolling assembly; and under the condition that the first rolling assembly is located in front of the second rolling assembly, the moving speed of the first rolling assembly is smaller than that of the second rolling assembly. By adjusting the moving speed of the first rolling assembly and the second rolling assembly, the cleaning device is prevented from being separated from the photovoltaic panel or clamped on the photovoltaic panel, and the reliability of the device is improved.

The invention provides an auxiliary pad for eyelash make-up, which comprises an auxiliary pad body, the auxiliary pad body comprises a first side surface and a second side surface, and the first side surface and the second side surface are both cambered surfaces; the extension part and the auxiliary pad body are integrally formed, and the lower end face of the extension part and the second side face are coplanar; the bonding layer is connected with the second side surface and is used for fixing the auxiliary pad body on the epidermis of the eyes; the auxiliary pad comprises an auxiliary pad body, a bonding layer and release paper, the release paper is attached to the side, away from the auxiliary pad body, of the bonding layer, the length of the release paper is larger than that of the auxiliary pad body, the release paper is provided with a tearing end, and the tearing end extends out of at least one end of the auxiliary pad body. The auxiliary pad is firmly bonded with the eyelids through the bonding layer, so that the auxiliary pad is effectively prevented from shifting in the makeup process, and the auxiliary pad has the advantages of being simple in structure, good in fixing effect and convenient to use.

The invention relates to the technical field of double-faced adhesive tape machines, in particular to a double-faced adhesive tape machine. The technical problem to be solved is to provide a double-sided adhesive tape machine with a better adhesive tape sticking effect. According to the technical scheme, the double-faced adhesive tape machine comprises a workbench, a first screw rod, a lifting plate, a tape cutting wheel, a first motor and the like, the first screw rod is rotationally connected to the right front side of the upper portion of the workbench, the lifting plate is connected to the first screw rod in a threaded mode, the lifting plate is slidably connected with the workbench, and the first motor is connected to the lower right portion of the lifting plate. The position of a material disc is adjusted by rotating a second screw rod and a third screw rod, paper position deviation caused by manual paper placement is avoided, the paper is pressed through a pressing block and a rubber block, and therefore the situation that the paper deviates in the rubberizing process to cause rubberizing position deviation is avoided, and the rubberizing effect can be better.

The invention discloses an automatic saw blade replacing mechanism for an edge sawing machine, and relates to the technical field of edge sawing machines, the automatic saw blade replacing mechanism comprises a bottom plate, a mounting motor is fixedly connected to the edge of one side of the upper surface of the bottom plate, a fixing plate is fixedly connected to the edge of the other side of the upper surface of the bottom plate, and a mounting plate is fixedly connected to the position, close to the fixing plate, of the upper surface of the bottom plate; a mounting plate is fixedly connected to one side of the bottom plate, a storage cylinder is fixedly connected to one side of the mounting plate, a plurality of new circular saw blades are arranged in the storage cylinder, a sliding rail plate is fixedly connected to the upper surface of the bottom plate, a stop plate is fixedly connected to one side of the storage cylinder, and a discharging seam is formed in the position, under the storage cylinder, of the upper surface of the bottom plate. According to the automatic saw blade replacing mechanism for the edge sawing machine, the mounting mechanism is designed for dismounting the saw blade, the cleaning mechanism is designed for cleaning the saw blade, the mechanical arm mechanism is designed for replacing the saw blade, dismounting, cleaning and saw blade replacing are conducted at the same time, and the effects of rapidly replacing the saw blade and saving time are achieved.

The utility model relates to the technical field of temperature detection, and discloses a hot water temperature detector based on the Internet of Things, which comprises an outer frame, an electric push rod is fixedly mounted on the outer wall of the outer frame, and a third limiting rod is fixedly mounted at the extension end of the electric push rod. A hot water temperature detector body is fixedly installed at the end, away from the electric push rod, of the third limiting rod, and a first limiting groove is formed in the outer side of the outer frame. According to the hot water temperature detector based on the Internet of Things, through cooperative use of an electric push rod and a first limiting groove, when the temperature of hot water is detected, firstly, the electric push rod can be controlled to work through a controller, and the extending end of the electric push rod is used for driving a third limiting rod to slide downwards on the inner wall of the first limiting groove; meanwhile, a limiting rod I and a limiting rod II which are fixedly connected with the hot water temperature detector main body slide downwards on the inner walls of a limiting groove III and a limiting groove II together, so that a limiting effect on the hot water temperature detector main body is achieved.

The invention relates to the technical field of electronic cigarettes, and particularly discloses an anti-wrinkling electronic cigarette microphone and an electronic cigarette thereof.The anti-wrinkling electronic cigarette microphone comprises a mounting plate, a mounting arm is fixedly mounted on one side of the mounting plate, and a connecting frame is fixedly mounted on the face, close to the mounting arm, of the mounting plate. The hook is inserted into the hanging hole of the connecting piece, the sliding plate is inserted into the sliding groove, and the telescopic spring is reset to tension the diaphragm body, so that on one hand, the diaphragm body is tightly attached to the circuit board to achieve electrical conduction, and on the other hand, the diaphragm body is tightened to avoid wrinkles. After the old diaphragm body is removed and the new diaphragm body is installed, the sliding strip is inserted and the bottom cover is screwed, the ventilation window of the bottom cover can realize gas circulation, the dustproof net can filter and prevent dust and keep the microphone performance, the telescopic spring can keep the diaphragm body tight to ensure the detection precision, the diaphragm body can be rapidly replaced, the maintenance cost is reduced, and the service life is prolonged.

The invention relates to the field of building template secondary edges, in particular to novel building template secondary edge integrated equipment which comprises a lifting frame, a cover body is fixedly mounted on the lifting frame, one end of a first pipeline penetrates through the inner side of the lifting frame and communicates with an inner cavity of the cover body, multiple sets of air outlet nozzles communicate with the inner wall of the cover body, and the air outlet nozzles all align at cutting blades. The first pipeline is communicated with a second pipeline, an air outlet cover at the bottom of the second pipeline is aligned with the motor, a first electromagnetic valve is installed on the first pipeline, a second electromagnetic valve is installed on the second pipeline, the end, away from the lifting frame, of the first pipeline is communicated with one end of a spring pipe, and the other end of the spring pipe is communicated with an air outlet pipe. When the cutting device is used, chippings generated by cutting can be sucked into the material collecting frame through the industrial dust collector, and air exhausted by the industrial dust collector can dissipate heat of the cutting blade, so that the temperature between the cutting blade and the secondary edge is not too high, and water spraying is not needed when the cutting blade dissipates heat.

The invention discloses a portable range hood. The portable range hood comprises a body, a fan assembly, a first filtering device and a second filtering device. The body is a cylinder with two open ends, the opening at one end is an air inlet of the portable range hood, the opening at the other end is an air outlet of the portable range hood, and a first connecting device is arranged at the air outlet; the fan assembly is arranged in the body so as to suck oil smoke outside the portable range hood from the air inlet and discharge the oil smoke from the air outlet; the first filtering device is fixed at the air inlet; the second filtering device is arranged at the air outlet, a second connecting device is arranged on the side, facing the body, of the second filtering device, and the second connecting device is matched with the first connecting device to achieve detachable connection between the second filtering device and the body. By arranging the detachable second filtering device, a user can adjust the oil fume filtering and purifying capacity according to needs, operation is easy, the two hands of the user can be prevented from being contaminated with oil stains, and use is convenient, fast and comfortable.

The invention relates to the technical field of square-bottom valve bag printing, in particular to a square-bottom valve bag printing position correcting and deviation rectifying device which comprises a machining shell, and a positioning and deviation rectifying mechanism used for supporting and limiting square-bottom valve bags of different models is arranged in the machining shell. A waste gas purifying mechanism used for absorbing printing ink printing waste gas is arranged on the side face of the machining shell, a printing auxiliary mechanism used for removing dust on the surface of the pocket body is arranged at the upper end of the machining shell, and the positioning deviation correcting mechanism comprises a lifting column movably installed in the machining shell. According to the pocket printing device, by arranging the positioning deviation correcting mechanism and utilizing mutual cooperation between a sliding protruding block and a telescopic protruding block, before printing processing, the inner side of a pocket body can be supported and limited, wrinkles or position deviation of the pocket body in the printing process is prevented, the front side and the rear side of the pocket body can be separated, and the printing quality is improved. And ink on one side is prevented from contaminating the other side in the printing process, and the printing quality can be effectively guaranteed.

The utility model discloses a rapid wound hemostasis device which comprises an installation frame, a hemostasis cover is installed in the installation frame in a threaded mode, a hard blood suction cotton ring is fixedly installed on the lower edge of the hemostasis cover, connecting blocks are fixedly installed on the two sides of the installation frame, and a dovetail sliding groove is formed in the other side of each connecting block. And a dovetail sliding groove is formed in one side of the dovetail sliding block, a dovetail sliding block is slidably installed in the dovetail sliding groove, a bandage is fixedly installed on one side of the dovetail sliding block, a limiting hole is formed in the bandage on one side, and a hook buckle is fixedly installed at the other end of the bandage on the other side. The hemostasis cover is buckled near the wound of a patient, and then the bandage is tightened, so that the lower edge of the hemostasis cover can extrude the skin of the wound of the patient, compress blood vessels near the wound and stop bleeding of the wound of the patient, the hemostasis cover does not make direct contact with the wound of the patient, and strong pain is avoided; and stabbing pain and wound infection caused by the fact that clothes of a patient make contact with a wound can be avoided.

The invention discloses a high-precision surface mounting device for intelligent electric meter production, and relates to the technical field of electric meter production, the high-precision surface mounting device comprises a device main body and a surface mounting part, and the surface mounting part is used for mounting an electronic component on a circuit board brushed with solder paste. The electric push rods on the two sides of the storage box are connected with the lower pressing plate in the middle, supporting rods are driven to ascend and descend in the ascending and descending process of the electric push rods, then a first piston plate moves in the storage box, and a worker can place solder paste into the storage box at a time; at the moment, solder paste at the bottom of the storage box is extruded downwards under the action of a first piston plate, contact between the solder paste and air is reduced, the quality of the solder paste is guaranteed, a gap exists between the bottom of the storage box and the top of a conveying assembly in cooperation with the conveying assembly, the phenomenon that the solder paste overflows in the tin soldering process is avoided, the solder paste printing time is shortened, and the labor cost is reduced; meanwhile, the amount of residual solder paste at the bottom of the solder paste printing assembly is reduced, and the solder paste printing quality is improved.

The invention belongs to the technical field of lithium battery manufacturing, and particularly relates to a dust removal device for lithium battery manufacturing equipment, which comprises a workbench, the middles of the left and right sides of the upper end surface of the workbench are fixedly connected with frame bodies, the middles of the upper end surfaces of the frame bodies are fixedly connected with a dust collection box, and the middle of the rear end of the dust collection box is communicated with a hose. The front end of the hose communicates with a dust suction pipe, a rotating roller is rotationally arranged in the middle of the adjusting plate, a plurality of second brushes are fixedly connected to the rotating roller, and a self-cleaning transfer type covering mechanism for preventing dust from flying to the periphery is arranged on the workbench. According to the self-cleaning transfer type covering mechanism, when a lithium battery is swept and dedusted, raised dust can be intercepted under the enclosure of a lifting disc, an arc-shaped plate, a first sliding plate and a second sliding plate, so that the dust only flies in a small area, the surrounding environment is prevented from being polluted by the raised dust, and the dust removal efficiency of the lithium battery is improved. And surrounding workers are not influenced.

The invention discloses a process chamber top cover mechanism and thin film deposition equipment thereof, the top cover mechanism comprises a top cover assembly and a gas mixing block connected to the top cover assembly, the top cover assembly is internally provided with a gas mixing cavity and a cooling flow channel, the gas mixing block is internally provided with a gas mixing channel, and the gas mixing channel is communicated with the gas mixing cavity; and a cooling channel is further arranged in the gas mixing block, and the cooling channel is communicated with the cooling flow channel, so that cooling liquid circularly flows through the top cover assembly and the gas mixing block. According to the top cover mechanism of the process chamber, the cooling channel is additionally arranged in the gas mixing block, and the cooling channel is communicated with the cooling flow channel of the top cover assembly, so that the input process gas is cooled in the gas mixing block, and the cooling efficiency of the process chamber is improved. According to the thin film deposition equipment adopting the top cover mechanism, the temperature of the top cover mechanism can be reduced more efficiently, so that fluorination corrosion to all aluminum parts at high temperature is avoided as far as possible, a process chamber is prevented from being polluted, and the service life of a top cover assembly is prolonged.

The utility model discloses a detachable medicine container which comprises a medicine bottle, a connecting groove is formed in the inner side wall of the medicine bottle, a connecting cover is arranged at the top of the medicine bottle, and a connecting hole is formed in the connecting cover. The bottom of the medicine cover and the bottom of the limiting body are clamped to the connecting cover, the limiting body is sleeved with the inner wall of the medicine cover, a fixing piece is arranged at the bottom of the limiting body, the bottom of the fixing piece penetrates through the connecting hole to be connected into the connecting groove, and the two side walls of the top of the fixing piece are limited to the inner side wall of the connecting hole. When the bottle cap needs to be recycled, only the limiting body needs to be detached from the clamping groove, then the two sides of the top of the fixing piece made of the elastic material are pressed, the bottom of the fixing piece can be separated from the interior of the connecting groove, the whole bottle body and the whole bottle cap are detached, the recycling efficiency is improved, and the production cost is reduced.

The utility model relates to the technical field of probiotic powder sampling and sampling inspection, and discloses a probiotic powder sampling and sampling inspection device and a storage mechanism, the storage mechanism is used for sampling and sampling inspection of probiotic powder, the storage mechanism comprises a cylinder, a hexagonal groove is formed in the bottom of the interior of the cylinder, first rubber sleeves are connected to the interior of the cylinder at equal intervals, and the first rubber sleeves are connected with the hexagonal groove. The sampling mechanism is installed in the cylinder and used for sampling and sampling inspection of the probiotic powder, the sampling mechanism comprises a needle tube, and the exterior of the needle tube is slidably connected with the interior of the cylinder. According to the probiotic powder sampling and sampling inspection device, the situation that the sampling speed is reduced due to tedious operation is avoided, meanwhile, the sampling mechanism can be prevented from being polluted by dust, then the polluted sampling mechanism is prevented from reducing the accuracy of sampling inspection data, and the situation that probiotic powder is contaminated in a needle head in the sampling mechanism is avoided; and meanwhile, the probiotic powder can be uniformly stored in the sampling mechanism, so that the problem that the probiotic powder is difficult to discharge completely after being stored disorderly is avoided.

The utility model discloses a stethoscope, which belongs to the technical field of medical instruments and comprises a stethoscope head with a pickup end face and a sleeve, one end of the sleeve is provided with a working port, the stethoscope head can enter a hollow channel of the sleeve through the working port along the axial direction of the sleeve, and a first thread is arranged in the hollow channel. The thread axis direction of the first thread is the same as the axial direction of the sleeve; the rotating disc is arranged in the hollow channel and can move between a first position and a second position in the hollow channel in the axial direction of the sleeve, a disinfection layer is arranged on the disinfection end face of the rotating disc, the rotating disc is provided with a second thread connected with the first thread, and the thread axis direction of the second thread and the rotating disc are coaxially arranged; the pickup end face of the stethoscope head can extrude the disinfection end face of the rotary disc, the rotary disc moves from the first position to the second position, and the disinfection end face rotates around the axis of the rotary disc under the action of the first thread and the second thread so that the disinfection layer can wipe the pickup end face and disinfect the pickup end face.

The invention discloses portable laser-assisted night vision equipment, which belongs to the technical field of night vision devices and comprises a night vision device body, an eyepiece and an objective lens are arranged at two ends of the night vision device body respectively, two combinable semi-cylindrical handle rods are arranged at the bottom of the night vision device body, and a folding assembly is arranged at the bottom of the night vision device body. A locking assembly is arranged on the folding assembly, and an unfolding and supporting assembly is arranged between the folding assembly and the semi-cylindrical handle rod; according to the night vision device, the two semi-cylindrical handle rods are unfolded and supported through the arranged unfolding and supporting assembly, a user can conveniently use the night vision device body for night vision monitoring in the prone posture, the folded and locked semi-cylindrical handle rods can serve as lifting handles, a convenient lifting and carrying mode is provided, and the practicability is high. Through the covering and protecting assembly, a user can automatically cover the objective lens while folding the semi-cylindrical handle rod, the operation of manually covering and protecting the objective lens is omitted, and through the fool-proof design, the risk that the objective lens is scratched or polluted due to the fact that the objective lens is not covered is avoided.

The utility model discloses touch screen full-automatic film covering equipment which comprises a workbench, a notch is formed in the workbench, a first shell with an upward opening is installed at the bottom of the workbench, a bidirectional threaded rod is installed in the first shell through a first bearing, a plurality of first sliding blocks are connected to the bidirectional threaded rod in a threaded mode, and a second sliding block is installed in the first sliding block. A connecting rod is mounted at the top of the first sliding block, a clamping plate is mounted at the top of the connecting rod, and the clamping and fixing device is formed by arranging the workbench, the notch, the first shell, the first bearing, a two-way threaded rod, a first motor, a first rotating shaft, the first sliding block, the connecting rod, the clamping plate, a limiting plate, a first electric push rod and a push plate. And a clamping plate and a push plate are moved by starting a motor I and an electric push rod I to fix the mobile phone, so that the mobile phone does not shake or move in the film pasting process, and the stability of the film pasting process is improved.

The utility model relates to the technical field of transformers, in particular to an air-cooled transformer with an air filtering function. According to the technical scheme, the transformer comprises a box body, a transformer fixedly installed in the box body, a plurality of air inlet holes formed in one side of the box body, a plurality of air outlet holes formed in the other side of the box body, an installation box installed in the box body and located on one side of the air inlet holes, and a plurality of first draught fans installed in the installation box. A water tank is arranged on the box body and located below the first draught fan, filtering liquid is arranged in the water tank, an air inlet pipe is installed on the installation box, and the air inlet pipe extends to the bottom of the water tank. External air is sucked into the bottom of the water tank through the first draught fan and makes contact with the filtering liquid, gas makes contact with the filtering liquid, impurities in the gas are filtered through the filtering liquid, the gas floats upwards to enter the box body, external dust is prevented from entering a heat dissipation air channel, and the situation that the heat dissipation performance is affected due to the fact that the transformer is contaminated with the dust is prevented.

The utility model relates to the technical field of zipper pullers, in particular to zipper puller cleaning equipment which comprises a cleaning pool, one side of the cleaning pool is communicated with a drainage pipe, the surface of the cleaning pool is provided with a limiting structure, the limiting structure comprises a support and a filter frame, the support is fixedly connected with the surface of the cleaning pool, and the filter frame is fixedly connected with the support. A threaded rod penetrates through the surface of the support in a threaded mode, a rectangular plate is rotatably connected to the end, close to the cleaning pool, of the threaded rod, a frame is fixedly connected to the side, close to the cleaning pool, of the rectangular plate, two round rods are fixedly connected to the surface of the rectangular plate, and driving plates are slidably connected to the surfaces of the round rods. The arc surface of the round rod is sleeved with a spring, the two ends of the spring are fixedly connected with the round rod and the driving plate correspondingly, and two plug pins are fixedly connected to the side, close to the frame, of the driving plate. The zipper head solves the problem that residues on the surface of the zipper head can easily contaminate the surface of clothes if the residues are not cleaned up.

The utility model relates to a numerical control rotary table surface sealing structure, which belongs to the technical field of numerical control rotary tables and comprises a rotary table body and a rotary table surface arranged on the rotary table body, at least one U-shaped ring groove is arranged on the side wall of the rotary table body, the U-shaped ring groove and the rotary table surface form a labyrinth sealing structure, and a drainage ring groove is arranged on the upper end face of the rotary table body. A drainage ring groove is formed in the rotary table body, a first drainage channel is formed in the drainage ring groove, a second drainage channel communicated with the lower end of the first drainage channel is formed in the rotary table body, and the other end of the second drainage channel extends to the side wall of the rotary table body and is connected with an air pipe connector. Meanwhile, the drainage ring groove is additionally formed in the end face, liquid such as cooling liquid or cutting liquid generated in the working process can be rapidly drained out, the situation that internal parts such as a bearing and an end-toothed disc are rusted and precision is reduced due to liquid accumulation is prevented, and the defect that labyrinth sealing cannot completely prevent water vapor leakage is overcome.