36results about How to "Improve sealing and dustproof effect" patented technology

The invention discloses a polishing head with a dustproof function. The polishing head comprises a spindle box and a sealing device, wherein a sliding sleeve capable of moving up and down is arranged in the spindle box; and the sealing device is arranged in a sealing cavity in the front end of the spindle box. The sealing device comprises a body, an upper elastic body, a lower elastic body, a sealing part and a pair of annular bodies, wherein an upper annular part abuts against the upper wall of the sealing cavity, and an upper conical part abuts against the upper conical surface of the body; a lower annular part abuts against the upper surface of an end cover, and a lower conical part abuts against the lower conical surface of the body; the sealing part is arranged on the periphery of the sliding sleeve in a sleeving mode, embedded in the body and located between the upper elastic body and the lower elastic body; and one of the annular bodies is arranged on a second upper annular groove of the sealing part in a sleeving mode, and the other of the annular bodies is arranged on a second lower annular groove of the sealing part in a sleeving mode. The polishing head is reliable in sealing and has a great dustproof effect.

The invention relates to an anti-poisoning high-adhesion organic silicon heat-conductive sealant and a preparation method thereof. The anti-poisoning high-adhesion organic silicon heat-conductive sealant comprises 56.3-88.2 parts of base stock, 1-15 parts of methyl hydrogenated polysiloxane, 5-20 parts of special diluent, 0.1-1 part of anti-poisoning agent, 2-6 parts of adhesive, 0.5-3 parts of adhesion accelerator, 0.1-1 part of catalyst, 0.01-1 part of inhibitor, 30-60 parts of solvent and 300-500 parts of heat-conductive filler. The heat-conductive sealant prepared according to the invention is an additive silica gel, with excellent heat-conducting property, high weather resistance, high ultraviolet aging resistance and excellent hydrothermal property; the heat-conductive sealant is suitable for outdoor long-term use; the heat-conductive sealant also has excellent anti-poisoning property, has excellent adhesiveness with PCB (Printed Circuit Board) and metal materials, such as silverand aluminum, and can be combined with electron devices for achieving the functions of sealing and preventing dust.

The invention provides a rolling bearing which comprises an outer ring, an inner ring, a rolling body and a retainer, wherein the rolling body is positioned between the raceway of the inner ring and the raceway of the outer ring, and the rolling body is uniformly separated by the retainer in the raceways along the circumferential direction. The rolling bearing is characterized in that a sealing device is arranged in a sealing groove of a bearing ring, and the sealing device is arranged outside the retainer. The sealing device is made from polyfluortetraethylene, and the minimum clearance formed between the sealing device and the inner ring as well as the outer ring is 0.001 millimeter. In the invention, the polyfluortetraethylene material is used for making a sealing element for replacing a metal stamping type dustproof cover and a rubber sealing ring, thereby avoiding the influence on the circularity, ellipticity and verticality of the outer ring of the rolling bearing (especially a thin-wall bearing) when the stamping type dustproof cover is assembled on the bearing, improving the sealing effect and dustproof effect, and simultaneously improving the compatibility of the sealing element and a lubricating agent.

The invention discloses an injection molding process method for an LED lamp integrally formed through injection molding. The injection molding process method is composed of the following steps that LED lamp beads are attached to a PCB substrate; a cavity of the PCB substrate in the embedment step (A) is reserved in a mold of an injection molding machine, the PCB substrate where the LED lamp beads are well attached is placed in the cavity reserved in the mold, and integral forming injection molding is conducted; and the injection molding method in the step (B) includes the steps that glue injection and glue melting are sequentially conducted on the PCB substrate in the cavity, pressure maintaining is then conducted, mold opening is conducted after cooling, and the period of one time of injection molding ranges from 50 S to 55 S. The injection molding process method is simple in process step, the PCB substrate where the LED lamp beads are well attached can be directly placed in the injection molding machine to be subjected to integral forming injection molding, the LED lamp beads on the PCB substrate in the injection molding process cannot be damaged under the specific parameter condition, the finished product ratio of products is high, the manufacturing material and labor cost can be reduced through integral forming injection molding, capacity of production is improved, and leakproofness of the products is improved.

The invention belongs to the technical field of sanitary products and specifically relates to a hot water conveying hose. The hot water conveying hose comprises an internal pipe and an external pipe;the external pipe is an elastic metal strip; grooves extending in the length direction are formed in the surface, close to one end, of the metal strip; bosses are arranged in the surface, close to theother end and in the same direction with the grooves, of the metal strip; the metal strip is wound on the external circumferential surface of the internal pipe in a spiral shape to coat the internalpipe; the two adjacent circles of the metal strip are partially overlapped; at the overlapped parts, the bosses of the metal strip fit the side walls of the grooves; springs are also wound on the external circumferential surface of the internal pipe; and all circles of the springs are all distributed between the grooves and the bosses of the metal strip. According to the hot water conveying hose,the service life of the hose is prolonged, and the use safety is enhanced.

The invention discloses a device for monitoring a water softener resin regeneration salt consuming state. The device is characterized by comprising a plurality of groups of infrared sensors, a controller and a display alarm device, wherein each infrared sensor comprises an infrared emitter and an infrared receiver which are mutually paired, all the groups of the infrared sensors are distributed from top to bottom, and the controller is connected with all the groups of the infrared sensors and can control the display alarm device to work according to the signals fed back by all the groups of the infrared sensors. In actual work, the infrared emitters can emit infrared signals in real time; when the corresponding infrared receivers receive the infrared signals, the controller can display thesalt consuming state on a display screen in real time by treating the infrared signals; when the receiver of the lowest group of the infrared sensor receives the infrared signals, the controller candisplay salt deficiency on the display screen by treating the infrared signals and give out sound-light alarm.

The invention discloses a pair of sunglasses beneficial to postoperative recovery of double eyelids. The sunglasses comprise a glasses frame, a dustproof cover, a sterilized cotton pad, a medicine dripping assembly, sunglasses lenses, nose pads and supporting leg assemblies, the nose pads are arranged at the central position of the glasses frame, two sunglasses lenses are fixedly mounted on the end surface of the glasses frame, the sterilized cotton pad is mounted at the top of the inner side of the glasses frame in a bonding manner, the dustproof cover is fixedly mounted on the end surface ofone side of the glasses frame, and supporting leg assemblies are arranged on the two sides of the end surface of the dustproof cover; the sunglasses beneficial to postoperative recovery of double eyelids are simple in structure and small in size; when in use, the glasses are convenient to wear, the lengths of the glasses legs can be conveniently adjusted, and the use convenience is greatly improved; moreover, the sealing and dustproof effects are good, and the wound can be effectively prevented from being contaminated by dust; meanwhile, the sunglasses have a medicine dripping function, can apply medicine to eyelids, is convenient and fast, avoids frequent disassembly and assembly of the sunglasses, and effectively improves the postoperative recovery effect.

The invention discloses a device for sealing an upper cover of a mining clinker car, which comprises a sealing cover and a plurality of sealing cover locking devices, wherein the main body of the sealing cover is made of a high-strength rubber material, the size of the rubber material is the same as that of the outer profile of the carriage upper opening of the mining clinker car, two steel plates are fixedly riveted at the two ends of the rubber material respectively, and the steel plates are positioned at the upper part of the rubber material; each sealing cover locking device comprises a handle hinge seat, a handle, a locking hook and a locking body; and the handle hinge seats are arranged on the outer side of the carriage of the mining clinker car, the handles are hinged on the handle hinge seats through handle articulated shafts, the locking hooks are hinged in the middles of the handles through locking hook articulated shafts, and the locking bodies are arranged at the upper parts of the steel plates. When the device is used, firstly the handles are pulled up such that the locking bodies are hooked by the locking hooks, and then the handles are pulled down and the handles drive the locking hooks such that the locking hooks are locked by the locking bodies. The device can prevent the upper cover from vibrating or being opened even if the collision occurs during the transport process of the clinker car, resulting in an excellent sealing effect.

The invention discloses an efficient dustproof sealing structure of a low-voltage inverter. The efficient dustproof sealing structure comprises a bottom shell, a top cover, a connecting and fixing block, a cable through opening, an automatic closing structure, a pressing and positioning structure and an auxiliary heat dissipation device. By arranging the automatic closing structure, the closing plate is rotationally connected with the left rotating head of the rear fixing plate through the right rotating head and is connected through the reset spring, so that after a cable does not penetrate through the cable through hole, the closing plate automatically closes the cable through hole through reset of the reset spring, dust is prevented from entering the cable through hole, and the sealing and dustproof effects are improved; by arranging the pressing and positioning structure, the pressure is provided by the pressure spring at the bottom of the top plate, so that the rubber gasket can press and position the upper end of the low-voltage inverter, the low-voltage inverter after being put in is prevented from deviating, and an accessed cable cannot be loosened and separated.

A positive-pressure sealing and rapid cover plate opening embedded scraper transporter comprises a head part, a tail part and an intermediate section, all of which are provided with access doors. The head part is provided with a head sealing mechanism, and the tail part is provided with a tail sealing mechanism. The intermediate section is provided with a sealing and rapid upper cover opening mechanism, and the access doors are provided with sealing and rapid viewing door opening mechanisms. According to the positive-pressure sealing and rapid cover plate opening embedded scraper transporter, through well sealing on the shaft stretching-out end of the embedded scraper transporter, the access doors, an upper cover and other places where dust is possibly generated, environment pollution is reduced; and through the improvement on the access doors and an upper cover locking mechanism, rapid cover opening is convenient, and time is saved.

The invention discloses a shell assembly for an air conditioner indoor unit and the air conditioner indoor unit with the shell assembly. The shell assembly for the air conditioner indoor unit comprises an installation frame, a chassis, a movable panel, an air guide plate and a driving assembly. The chassis is installed on the installation frame and provided with an air outlet. The air outlet is provided with a front side facing towards the front and a bottom side facing towards the bottom. The movable panel is movably installed on the front side of the air outlet to open and close the front side of the air outlet. The air guide plate is arranged on the bottom side of the air outlet in a swing mode to open and close the bottom side of the air outlet. The driving assembly is arranged on the chassis. The driving assembly is arranged to drive the movable panel and the air guide plate to jointly open and close the air outlet. According to the shell assembly for the air conditioner unit in the embodiment, the structure is simple, the appearance is attractive, and the refrigeration and air exhaust effects can be ensured.

The invention relates to a pinch roll oil-seal-free speed reducer for the steel industry. One end of an input shaft is sealed through a closed cover, and the other end is in penetrating connection with a through cover. The through cover is in pressing connection with a supporting bearing, on a box, of the input shaft. The part, outside the supporting bearing, of the input shaft is in cup joint with an oil slinger, and two or more oil slinger sheets are evenly distributed on the outer side of the oil slinger in the axial direction. The shaft section of the part, outside the through cover, of the input shaft is in hooping connection with and locks an upper oil shedding shell and a lower oil shedding shell through bolts. Each of the upper oil shedding shell and the lower oil shedding shell isinternally provided with two or more sections of semicircular oil shedding cavities in the axial direction of the input shaft. A complete circular oil shedding cavity is formed by every two semicircular oil shedding cavities, wherein the side wall of the oil shedding cavity is in clearance fit with the outer circumference wall of the oil slinger. Each cavity contains one oil slinger sheet, and the oil slinger sheets make contact with the cavity bottoms of the semicircular oil shedding cavities. An output shaft is in penetrating connection with a through cover structure the same with the inputshaft. The pinch roll oil-seal-free speed reducer is compact in structure and suitable for being safely sealed and used in the steel industry environment.

The invention provides a milling machine spindle. The milling machine spindle comprises a spindle sleeve, a first bearing, a second bearing, a spindle core, a first labyrinth end cover and a second labyrinth end cover. The first bearing and the second bearing are correspondingly sleeved with the front and rear ends in the spindle sleeve. The spindle core is sleeved with the first bearing and the second bearing. The first labyrinth end cover and the second labyrinth end cover are correspondingly arranged at the front and rear ends of the spindle sleeve. A first step surface for limiting the first labyrinth end cover is arranged on the portion, at the front side of the first labyrinth end cover, of the spindle core. A first nut for limiting the second labyrinth end cover is arranged on the portion, on the rear side of the second labyrinth end cover, of the spindle core. The inner walls of the first bearing and the second bearing each are a taper with a big front end and a small rear end.A tapered surface matched with the tapered inner walls of the first bearing and the second bearing is arranged on the spindle core. According to the milling machine spindle, the tapered bearings withthe inner walls with the big front ends and the small rear ends are arranged between the spindle sleeve and the spindle core, and the tapered surface matched with the tapered inner walls of the bearings is arranged on the spindle core, so that assembly positioning is facilitated and assembly precision is improved.

The invention discloses a granulator with a ring mould. The granulator with the ring mould comprises a base, a driving motor and a speed reducer. A ring mould base which is firmly connected with the ring mould is arranged on an output shaft of the speed reducer, a compression roller component is located in the ring mould and forms a compressing cavity with the ring mould, a compression roller of the compression roller component is fixed on a compression roller shaft via a compression roller bearing, the front portion of the compression roller shaft is arranged on a compression roller seat, the bottom end of the compression roller seat is arranged at the top end of the base, a connecting rod is arranged at the back end of the compression roller seat, the back end of the compression roller shaft is connected with a connecting plate which is connected to the back end of the connecting rod, and a ring groove is arranged on the circumferential surface of the compression roller shaft at the position of the compression roller bearing, and is communicated with axial cooling liquid inlets and axial cooling liquid outlets which are axially arranged on the compression roller shaft. Since the bearing is added to support the ring mould, negative factors brought by a ring mould cantilever are eliminated; since a liquid cooling device is added in the compression roller shaft, equipment failure rate is lowered, service lives of the bearing and the shaft are effectively prolonged, grease usage quantity of the bearing is reduced, and production efficiency is obviously improved.

The invention relates to the field of preparation of metallurgy and chemical raw materials, in particular to a bunker with a sealing device. The bunker comprises a bunker body, and a discharging grid plate arranged at the upper part of the bunker body, and is characterized in that a material guide chute is obliquely arranged at the lower part of the discharging grid plate in the bunker body, and one end of the material guide chute is connected with the lower end of the middle of the discharging grid plate; the other end of the material guide chute is connected with the bottom corner of the bunker, and a bunker discharge port is arranged at the lower part of the side wall of the bunker; a sealing rubber plate is arranged at the bunker discharge port, and one end of the sealing rubber plate is connected with the side wall of the bunker through a bolt, a nut and a pressing piece; and the other end of the sealing rubber plate is abutted against the lower end of the material guide chute, and a baffle is arranged at the upper part of a joint of the side wall of the bunker and the sealing rubber plate. The bunker provided by the invention has the advantages that: with the structure, the discharge port of the bunker can be sealed at any time, so that the sealing and dustproof effects are realized, and the spillover of soot is reduced, and thus a lot of dust are retained in the bunker and natural sink.

The invention provides an integrated stepless car door limiter, belongs to the technical field of automobiles, and solves the problems that stepless car door limiting cannot be achieved in the prior art, collision or impact of a car door occurs easily due to swing. The limiter comprises a car body plate and a car door plate. The car body plate is provided with a first mounting hole. The limiter further comprises a brake shaft and a stop pin. The outer side of the brake shaft is provided with outer threads. The inner surface of the first mounting hole is provided with inner threads. The brake shaft is inserted in the first mounting hole and provided with a conical counter bore. The outer end of the brake shaft is peripherally fixed with the car door plate. The brake shaft and the stop pin are oppositely respectively inserted from two ends of the first mounting hole. The outer end of the stop pin is fixedly connected with the car body plate. The inner end of the stop pin is a conical head which is inserted into the conical counter bore. The limiter is capable of stepless limiting, and the car door is long in service life.

The invention discloses an integrated high-seal automobile wheel hub unit and an assembly method thereof, comprising a base mechanism, the upper outer surface of the base mechanism is socketed with a transmission mechanism, and the upper outer surface of the transmission mechanism is socketed. There is a sealing mechanism, and a limit cylinder is vertically arranged in the middle of the upper surface of the circular plate. The invention relates to the technical field of automobile wheel hub units. The high-seal automobile wheel hub unit of integrated structure and its assembly method utilize the elasticity of springs. When the base mechanism needs to be assembled or disassembled, the staff only need to turn the knob to Drive the turntable on the rotating shaft to rotate, so that the positioning shaft on the eccentric rod can be inserted into or separated from the positioning groove inside the sleeve, and then the base mechanism can be fixed or disassembled on the transmission mechanism conveniently, replacing the traditional bolt fixing method, which not only saves The time for disassembly and assembly is shortened, and the labor intensity of labor is also reduced, which is convenient and quick.

The invention relates to the technical field of plastic bottles, in particular to a plastic bottle for beverage. The plastic bottle comprises a storage structure, a sealing structure, a dustproof mechanism and a drainage mechanism, wherein the sealing structure is mounted on the upper side of the storage structure; the dustproof mechanism is mounted on the upper side of the sealing structure; thedrainage mechanism is embedded in the sealing structure; the bottom end of the drainage mechanism extends into the storage structure; and the storage structure comprises a plastic bottle body, an arc-shaped handrail, scale marks, an anti-skid backing ring, a protruding part, a drainage tube, a connection inserting opening and a sealing silica gel ring. According to the plastic bottle for beverage,the storage structure and the sealing structure are arranged, the hollow arc-shaped handrail can be conveniently grabbed and further increases the volume of the bottle body, when the beverage bottleis used, beverage is poured into the plastic bottle body, a vertical inserting pipe is inserted into the connection inserting opening, then a sealing bottle cap is screwed down, the sealing bottle capand the connection protruding ring in threaded connection are matched with each other, thus sealing and dustproof effects are achieved, and the drinking safety of the beverage is guaranteed.

The invention provides a steering gear dust cover. The steering gear dust cover comprises a sealing gasket, a dust cover skeleton and a sealing ring. The sealing gasket comprises an upper end face and a lower end face. At least one sealing rib is arranged on the upper end face of the sealing gasket. The upper end of the dust cover skeleton is nested and matched with the lower end face of the sealing gasket, and the lower end of the side wall of the dust cover skeleton is provided with a groove. The sealing ring is arranged in the groove. The invention further provides a steering gear waterproof sealing structure. The steering gear waterproof sealing structure comprises the steering gear dust cover, a car body metal plate and a steering gear shell. The upper end face of the sealing gasket is tightly pressed and attached to the car body metal plate. The lower end of the dust cover skeleton is nested into the steering gear shell. The invention further provides a vehicle. The vehicle comprises the steering gear waterproof sealing structure.

The invention discloses a hydraulic power mechanism telescopic device. The hydraulic power mechanism telescopic device is characterized by comprising a plunger, oil inlet holes, a cylinder barrel, a guide ring, a shaft seal and a dustproof ring, wherein the cylinder barrel and the plunger are comprised, the cylinder barrel sleeves the plunger, the dustproof ring, the shaft seal and the guide ringare installed between the cylinder barrel and the plunger, and one oil inlet hole is formed in each of the two sides of the cylinder barrel. The hydraulic power mechanism telescopic device has the advantages that the rotation of the plunger in movement can be controlled so that the plunger can be accurately in butt joint with a butt joint object, the structure is simple, the design is reasonable,the production cost is low, and the sealing and dustproof effects are good.

The invention relates to an improved rebar straightening frame. A straightening frame body is a rectangular frame body of which the interior is hollow, and short edges at the two ends are connected with a first connection pipe and a second connection pipe correspondingly. Straightening wheel devices penetrate through milling discs to be fixedly installed on the two sides of the interior of the straightening frame body. Reinforcement pressing plates are fixedly installed on the upper side and the lower side of the straightening frame body. Fixing rods penetrate through the straightening frame body and are fixedly installed on the straightening frame body through first nuts. The milling discs are hexagonal, are embedded in the side surfaces of the straightening frame body and are internallyprovided with milling disc grooves and fixing holes. The improved rebar straightening frame is high in practicality and simple in structure, discs on the side surfaces of the straightening frame are replaced with the hexagonal milling discs, the straightening centrifugal force is reduced, the concentricity of rebar straightening and the rotation speed are improved, and meanwhile, the straighteningframe body is reinforced.

The invention relates to the technical field of Internet of Things, and discloses a construction bracelet device based on Internet of Things platform data transmission. The device comprises a shell, an access cover, heat dissipation holes, a right tightening belt and a left tightening belt, one end of the shell is provided with a glass protective cover, one end of the glass protective cover is connected with a hinge, the access cover is arranged on the inner side of the shell, a fixing bolt is arranged on the surface of the access cover, and a sealing strip is arranged on the inner side of the access cover. According to the construction bracelet device based on Internet of Things platform data transmission, through the arrangement of ventilation holes, the left tightening belt can be ventilated, and the situation that the skin of a user is red and swollen due to bad ventilation caused by long-time wearing can be effectively prevented. During wearing, the right tightening belt and the left tightening belt are adjusted and worn through a tightening buckle, and after the device is adjusted to a proper position, a fixing buckle is rotationally fixed into a fixing hole through a threaded shaft for fixing and clamping, so that the practicability of the construction bracelet device is improved.

The invention provides a hydraulic controlled vehicle power transmission mechanism, comprising: an engine, a transmission and a clutch arranged between the engine and the transmission. The clutch is connected with a clutch controller; the clutch controller is a hydraulic controlled implementing mechanism, comprising a hydraulic main cylinder and pipelines connecting oil-paths in the main cylinder; the main cylinder is horizontally set, axial direction being identical to axial line of the clutch. Beneficial effect of the invention is that the hydraulic clutch controller is used and the hydraulic main cylinder is horizontally set, which improves reliability of the hydraulic clutch controller and saves space in the engine area. In addition, a push type shift fork separation mechanism is used to improve transmission efficiency of the power transmission mechanism; mounting way of flange face seals dust greatly.

The invention provides a steering gear dust cover. The steering gear dust cover comprises a sealing gasket, a dust cover skeleton and a sealing ring. The sealing gasket comprises an upper end face and a lower end face. At least one sealing rib is arranged on the upper end face of the sealing gasket. The upper end of the dust cover skeleton is nested and matched with the lower end face of the sealing gasket, and the lower end of the side wall of the dust cover skeleton is provided with a groove. The sealing ring is arranged in the groove. The invention further provides a steering gear waterproof sealing structure. The steering gear waterproof sealing structure comprises the steering gear dust cover, a car body metal plate and a steering gear shell. The upper end face of the sealing gasket is tightly pressed and attached to the car body metal plate. The lower end of the dust cover skeleton is nested into the steering gear shell. The invention further provides a vehicle. The vehicle comprises the steering gear waterproof sealing structure.

The invention provides a power transmission mechanism of hydraulic clutch controlled type, comprising: an engine, a transmission and a clutch arranged between the engine and the transmission. The clutch is connected with a clutch controller; the clutch controller is a hydraulic controlled implementing mechanism, comprising a hydraulic main cylinder and pipelines connecting oil-paths in the main cylinder; the oil-pipes are distributed in the engine area freely, maintaining a safe distance with its adjacent pipe-path. Beneficial effect of the invention is that the hydraulic clutch controller is used and oil-pipes in free bends are distributed in the engine area freely, which reduces integral designing complexity. In addition, a push type shift fork separation mechanism is used to improve transmission efficiency of the power transmission mechanism; mounting way of flange face seals dust greatly.