82results about How to "Improve airtightness" patented technology

Provided is a bicycle rim pressure-sensitive adhesive (PSA) tape having good workability. The bicycle rim PSA tape is a pressure sensitive adhesive sheet used for sealing a spoke hole in a bicycle rim; includes a support substrate, and a PSA layer on one surface of the support substrate; has a peel strength of 2 N / 20 mm or more, as attached onto an aluminum plate as an adherend for 10 seconds and then measured under conditions at a tensile rate of 300 mm / min and a peel angle of 180°, under a temperature condition of 0°C; and has a shear adhesive strength of 200 N / 400 mm2 or more, as measured with employing an aluminum plate as an adherend under a temperature condition of 0°C.

This invention provides a power packaging structure and power module, including a substrate, a power chip, several conductive pillars, a molding compound, and several front-side lead-out terminals. The conductive pillars are sequentially divided into a first structure and a second structure along a direction away from the top surface of the substrate, and the bottom surface of the first structure is fixed to the electrode lead-out area on the top surface of the substrate. Since the cross-sectional area of ​​the first structure is smaller than that of the second structure of the conductive pillars, and several conductive pillars are fixed to the top surface of the substrate, the space requirement for the conductive pillars on the substrate is greatly reduced by decreasing the contact area between a single conductive pillar and the top surface of the substrate, thereby reducing the size of the substrate and consequently lowering the packaging cost.

The application discloses a kind of salt-containing wastewater concentration devices, belong to salt-containing wastewater treatment technical field, including support and being located on the concentration tank of support, multiple filter plates are arranged in the concentration tank along the direction of axis, the filter plate is coaxially arranged with concentration tank, the middle part in the concentration tank is equipped with partition plate, the partition plate divides the cavity in the concentration tank into two semicircular cavities symmetrically, and the two semicircular cavities are processing cavity and filter cavity respectively, switching through-hole is equidistantly arranged on the partition plate, the filter plate is rotatably arranged in switching through-hole, switching drive is arranged on the concentration tank to drive the rotation of filter plate, a plurality of clamping type cleaning mechanisms are arranged in the processing cavity, and cleaning liquid supply mechanism is arranged on the support.The salt-containing wastewater concentration device provided by the application can clean the filter plate without stopping work, ensuring continuous filtration.

This utility model belongs to the field of bathroom hardware, specifically a quick-release, multi-specification compatible bathroom water pipe connector. It includes a bathroom connecting water pipe, an assembly pipe, and a connector body. The connector body has an assembly groove, an adapter head is inserted into the assembly groove, and the adapter head is equipped with a limiting plate. The adapter head and the limiting plate have internal thread grooves with connecting holes. The adapter head is equipped with a sealing ring, the limiting plate has an insertion block with a locking hole, and the connector body has a stabilizing mechanism. The stabilizing mechanism includes a fixing block, which is assembled with the connector body. The fixing block is equipped with a guide rod, the guide rod has a limiting block and a movable block, and the movable block has a locking rod. This quick-release, multi-specification compatible bathroom water pipe connector solves the problem of thread wear and poor sealing caused by changing connecting tools in existing bathroom water pipe connectors through the cooperation of the sealing ring and locking rod.

This application relates to the field of air conditioning control technology, and discloses a wired controller for an air conditioner. The wired controller includes a middle frame, a computer board, a rear shell, and a rear shell cover. The first side of the middle frame has an installation space. The computer board is disposed in the installation space. The rear shell covers the installation space and protrudes rearward to form a receiving space. The rear shell cover covers the receiving space to isolate the installation space and the receiving space. The rear shell cover includes a covering portion and a plug-in portion. The covering portion covers the receiving space. The plug-in portion extends from the edge of the covering portion into the receiving space and contacts the inner wall of the receiving space. The plug-in portion has a locking hole. The inner wall of the receiving space has a hook that engages with the locking hole. The inner wall of the receiving space also has a through unlocking hole, through which the plug-in portion is exposed. This application also discloses an air conditioner.

The utility model discloses an electromagnet which comprises a support body and a cover plate fixedly arranged on one side of the support body. An execution assembly is arranged in the support body, the bottom and the top of the support body are both provided with anti-seismic colloid, the bottom is further provided with a PIN terminal, the PIN terminal is electrically connected with the execution assembly, and the connecting position of the PIN terminal and the execution assembly is wrapped by an insulation connecting bridge. The execution assembly comprises a winding supporting piece, a limiting shaft sleeve, an iron core, a permanent magnet and a coil. The two ends of the limiting shaft sleeve are provided with limiting holes, and sliding limiting of the iron core is achieved through a guide block and a positioning base. The anti-seismic performance, the integration level and the installation convenience of the electromagnet can be improved, meanwhile, the leakproofness and the insulativity of the welding part are ensured, and the electromagnet is suitable for an automobile ABS system.

The utility model relates to the field of oil pipe sealing sleeves, in particular to a leakage-proof sealing sleeve for an oil pipe joint, and adopts the technical scheme that the leakage-proof sealing sleeve for the oil pipe joint comprises an oil pipe main body, a sealing sleeve main body, a threaded cap, a rubber sleeve and a metal limiting ring. The rubber sleeve and the rubber ring piece can perform primary inner sealing treatment on the oil pipe main body installed in the connector, and the metal mutual ring and the metal barb are matched to position the oil pipe main body installed in the connector and prevent the oil pipe main body from accidentally falling off from the interior of the connector. A first rubber ring and a third rubber ring can be used for filling and sealing two gaps at the joint of the first threaded cylinder and the oil pipe main body, so that external sealing treatment on the oil pipe main body is realized, and the sealing performance of the oil pipe main body during mounting and use is greatly improved; the problems that an existing oil pipe connector sealing sleeve is poor in leakproofness in the using process, and an oil pipe is prone to falling off are solved.

This invention discloses a wind-solar hybrid power generation device that is easy to switch between, relating to the field of wind-solar hybrid power generation technology. It includes a base, with a sleeve rotatably connected to the upper end of the base. A shell is provided on the outer surface of the base, and the bottom of the base is connected to the shell via a support rod. A photovoltaic panel is fixed to the upper surface of the shell. A fan blade is rotatably connected inside the sleeve, and an angle adjustment component is provided inside the sleeve. A locking component is provided at the lower end of the angle adjustment component, and an adjustment rotation component is provided at the upper end of the shell. This invention uses the angle adjustment component to change the fan blade angle when encountering different wind resistances, the locking component to lock the fan blade when the wind resistance exceeds a threshold to avoid damage, and the adjustment rotation component to achieve sealed protection for the photovoltaic panel.

The utility model relates to textile processing technical field, and disclose a kind of drying device for textile processing, including box, the side fixed mounting of roller is used for the door of closed, the middle part fixed mounting of roller is used for the support of supporting cloth, the top of box is fixedly connected for the control panel of control, the top fixed mounting of control panel is used for the exhaust pipe of exhaust, the side fixed mounting of box is used for the warm air blower of generating hot air.The drying device for textile processing, by the cooperation setting of door and support, can be fixed support to cloth using support, door can guarantee device in closed environment, can more efficiently dry, by the cooperation setting of control panel, exhaust pipe and warm air pipe, the operation of device can be controlled using control panel, exhaust pipe can release excess gas in device, and then warm air blower can blow hot air into device to speed up the rate of drying.

The utility model discloses an anti-blocking threaded ball valve which comprises a first ball valve shell, a second ball valve shell is arranged below the first ball valve shell, the end of the first ball valve shell and the end of the second ball valve shell are sleeved with fixing pipes, the upper end of the first ball valve shell is connected with a rotating shaft, a valve rod is installed at the upper end of the rotating shaft, and the lower end of the rotating shaft is connected with a valve element. A through hole is formed in the lower end of the valve element, and a liquid discharging pipe is installed at the lower end of the second ball valve shell. According to the anti-blocking threaded ball valve, the first ball valve shell and the second ball valve shell can be tightly attached and limited through the fixing pipe, the fixing pipe and the ball valve shells are locked, assembling of the threaded ball valve is achieved, then the threaded ball valve can be conveniently disassembled, and the interior of the threaded ball valve can be conveniently cleaned and maintained; by means of the sealing strip, the leakproofness of the threaded ball valve can be improved when the valve element is closed, leakage of the threaded ball valve is avoided, and residual water in the valve element can be discharged along the through hole and the liquid discharging pipe by detaching the threaded cap from the liquid discharging pipe.

The utility model relates to the technical field of heat insulation wall, especially a heat insulation wall coated with radiation refrigeration coating, which comprises a wall base layer, a fixed frame arranged on the outer side of the wall base layer, an adhesive layer arranged on the inner side of the fixed frame, a phase change layer arranged on the outer side of the adhesive layer, a heat insulation layer arranged on the outer side of the phase change layer, a radiation refrigeration coating layer arranged on the outer side of the heat insulation layer, and a protective layer arranged on the outer side of the radiation refrigeration coating layer. The fixed frame is fixed on the wall base layer through the adhesive layer, the fixed frame is used to conveniently disassemble, replace and maintain the heat insulation wall surface, the radiation refrigeration coating layer effectively reflects solar radiation, reduces the temperature of the wall, the protective layer is used to protect the radiation refrigeration coating layer, the heat insulation layer increases the thickness of the wall, the phase change layer buffers the temperature change of the wall, and the stress generated by thermal expansion and cold contraction of the wall can be reduced, thereby enhancing the heat insulation effect of the wall. Moreover, the heat insulation wall can be locally disassembled and assembled, and the damaged and aged wall surface can be repaired and replaced at any time.

This invention provides a knife gate valve, comprising a valve body, a screw, a rotary wheel, and a lifting rod. The valve body has a horizontally penetrating passage cavity for media to pass through. A gate plate for sealing the passage cavity is slidably connected to the valve body in a vertical direction. A receiving groove for accommodating the side edge of the gate plate is provided on the inner peripheral wall of the passage cavity, and an upward-opening embedding groove is provided on the bottom wall of the receiving groove. The screw is connected to the top of the gate plate and extends upward to the top of the valve body. The rotary wheel is rotatably connected to the top of the valve body, and the screw coaxially passes through the rotary wheel and is threadedly engaged with it. The rotary wheel can drive the screw to rise and fall to block or avoid the passage cavity by the gate plate. The lifting rod passes through the screw and the gate plate along the axial direction of the screw and is slidably connected to the screw and the gate plate. A support plate for embedding in the embedding groove to support impurities is connected to the lower end of the lifting rod. The knife gate valve provided by this invention can promptly clean impurities in the receiving groove, improving the sealing performance of the knife gate valve.

This invention relates to a high-frequency filter, comprising a base plate, a detachable winding frame disposed above the base plate, and a protective cover disposed outside the winding frame. A coil body is disposed on the winding frame. Positioning grooves and slots are symmetrically arranged on both sides of the upper surface of the base plate and on the inner wall of the protective cover, respectively. Positioning blocks are symmetrically arranged on both sides of the winding frame. The bottom and outer side of each positioning block are respectively inserted into the corresponding positioning groove and slot. Locking arc blocks are symmetrically arranged on both sides of the upper surface of the base plate. A locking arc groove corresponding to the locking arc block is provided on the bottom surface of the protective cover. A mating pushing component is provided between the positioning blocks and the positioning grooves to lock and fix the base plate, winding frame, and protective cover. Compared with the prior art, this invention has the advantages of combining and sharing the mounting and disassembly components among the base plate, protective cover, and winding frame, achieving integrated and rapid mounting and disassembly.

The utility model relates to a kind of panel sealing assembly structure of concrete pool, including panel body, the edge of panel body includes lap joint, the lap joint of adjacent panel body is distributed in staggered and mutually lap joint, and a corresponding mounting hole is respectively equipped on adjacent lap joint, it is fixedly arranged between the lap joint of adjacent through fixing part, the fixing part is set through mounting hole, and fixing part both ends lock and fix;The utility model is reasonably structured, the structure of panel body is optimized, preliminary installation is realized through mounting hole, fixing part on the basis of lap joint assembly, while being equipped with pressing member and sealing band for further guarantee the sealing property of pool, so that in the case where concrete pool does not use pouring construction mode, it guarantees that it has good airtight effect.

The utility model is applicable to the technical field of shock absorbers, and provides a universal contact pin type inflating tool, which is used for inflating an oil cylinder and a piston rod and comprises a clamping tool, an inflating air chamber and an inflating pressure head, the inflating air chamber is mounted on the clamping tool, the inflating pressure head is pressed on the piston rod in a sleeving manner, and the inflating air chamber is a flexible inflating block; the flexible inflation block, the inflation pressure head, the oil cylinder and the piston rod are matched, clamped and sealed to form an inflation space, so that the inflation condition is met, and inflation operation of the piston rod and the oil cylinder is achieved. According to the universal contact pin type inflation tool, on one hand, the inflation efficiency and the inflation effect can be greatly improved, on the other hand, sealing inflation of piston rods and oil cylinders of different sizes can be effectively achieved through the action of the flexible inflation block, meanwhile, the piston rods of different diameters are pressed in a sleeving mode through the action of the inflation pressure head, and the inflation efficiency is greatly improved. Sealing and air inflation of the piston rod with the step and the oil cylinder can be achieved, and therefore the air inflation universality is effectively improved.

This invention discloses a sterile microscope for neurosurgery, comprising a microscope and a sterile microscope sleeve. A negative pressure suction tube is arranged along the arm of the microscope. The tail end of the negative pressure suction tube is sequentially connected to an extension tube, a three-way valve, and a negative pressure suction device. Suction holes are formed in the side wall of the negative pressure suction tube. The extension tube and the negative pressure suction device are respectively connected to the first and second ports of the three-way valve, and a rubber stopper is provided at the third port of the three-way valve. The sterile microscope sleeve is wrapped around the outside of the microscope arm and the negative pressure suction tube with adhesive tape. This invention improves the airtightness and the convenience of installing the sterile microscope sleeve. After the sterile microscope sleeve is tightly attached to the microscope arm, the negative pressure suction device can be turned off, reducing noise interference during surgery. Moreover, all components except the sterile microscope sleeve are reusable, reducing the cost of consumables.

The utility model discloses a polymer ardealite cable bridge for a road, which comprises a bottom groove, a cover plate movably connected to the bottom groove, a windproof lock catch arranged at the joint of the cover plate and the bottom groove, a clamping hook bent upwards arranged on the inner wall of the upper end of the bottom groove, first clamping grooves matched with the clamping hook and arranged on the lower surfaces of the left side and the right side of the cover plate, and second clamping grooves matched with the clamping hook are arranged on the lower surfaces of the left side and the right side of the cover plate. The outer wall of the bottom groove and the upper surface of the cover plate are respectively provided with a second clamping groove and a third clamping groove which are arranged along the lengthwise direction; the windproof lock catch is respectively provided with a first clamping plate and a second clamping plate which are matched with the second clamping groove and the third clamping groove; according to the utility model, the leakproofness of the cable bridge can be improved, the conditions that air enters the cable bridge and water vapor with wind enters the cable bridge are reduced, the aging of cables and electrical components is reduced, and the cables and the electrical components in the bridge can be protected.

The invention discloses a glass fiber composite material metro cleaning type ventilation double-leaf protective air-tight door which comprises a door frame and door leaves. The door frame is fixed to a first civil air defense door frame wall of a cleaning air duct, the door frame serves as a basic support, the door leaves made of double SMC materials in a mold pressing mode are connected through the split hinges, and rotary opening and closing of the door leaves are achieved. A small electric protective air-tight door is arranged on the inner side of the door leaf, a rubber pipe valve is arranged on the outer side of the door leaf, and an oil screen dust filter is arranged between the small electric protective air-tight door and the rubber pipe valve; a lock is further fixed to the inner side surface of the door leaf, a lock hole is formed in the corresponding position of the door frame, and a lock head of the lock is inserted into the lock hole of the door frame. And a positioning jack is arranged at the end part of the outer side of the door leaf. According to the door body, glass fiber composite materials are adopted as door leaf materials, wave absorption is achieved through a rubber pipe valve, protection and sealing are enhanced through a small electric protection sealing door, and clean type light ventilation and protection in wartime are achieved.

The utility model discloses a sealing stop valve sealing performance detection device, which comprises a bottom frame and a mounting frame, the mounting frame is hinged in the bottom frame, a detection assembly is mounted in the mounting frame, the detection assembly comprises a vertically arranged screw rod, the screw rod is in threaded connection with the top of the mounting frame, and the screw rod is in threaded connection with the mounting frame. One end of the bottom of the lead screw is rotatably connected with a horizontally-arranged plugging frame, the outer wall of the top of the plugging frame is fixedly connected with a plurality of vertically-arranged limiting rods, the limiting rods are slidably inserted into the mounting frame, and the outer wall of the bottom of the plugging frame and the inner wall of the bottom of the mounting frame are each provided with a through hole; through the arrangement of the detection assembly, the plugging frame can be driven to move towards the stop valve stably and rapidly, operation is stable and rapid, it can be guaranteed that the sealing performance between the plugging frame and the stop valve is strong enough, and the situation that the sealing performance between the plugging frame and the valve body is affected due to uneven stress is effectively avoided.

The invention discloses an adhesion type production device and method for preparing an environment-friendly asphalt separant. The device comprises an emulsifying barrel, a lifting stirring structure, a sealing height adjusting mechanism and a multi-point dripping mechanism. The whole stirring structure is driven to lift through hydraulic pressure, and the sealing height adjusting mechanism is matched, so that the stirring frame stably works at different liquid levels, and the top of the emulsifying barrel is always kept sealed. The multi-point dripping mechanism adopts an arc-shaped channel and a plurality of vertical dripping tube structures, so that multi-point uniform dripping of a water phase in the emulsifying process is realized, and the emulsifying efficiency and uniformity are improved. The method comprises the steps of mixing, emulsifying, tackifying and grinding, and is suitable for various animal and vegetable oil and mineral oil systems. The device is stable in structure, flexible to adjust and capable of effectively improving the emulsification quality and production stability of the environment-friendly asphalt separant.

The application discloses a method for constructing an internal dumping site based on a fly ash-based cementing material carbon dioxide storage, and utilizes the cementing properties of fly ash of a pit mouth coal-fired power plant to prepare a fly ash-based cementing material with super high content, and utilizes the high-strength fly ash-based cementing material to construct a carbon dioxide storage, and utilizes a cement-free low-strength fly ash-based cementing material to backfill an open-pit mine pit, so that the resource utilization and efficient collaborative disposal of fly ash solid waste are realized; the carbon dioxide storage is constructed in the internal dumping site space, the open-pit mining space is effectively utilized, and the problem of insufficient material for land reclamation backfilling in the late mining stage is solved; the carbon dioxide storage reinforced by the anchor rod prestress has high strength and large internal space, the mine pit bottom plate impermeable layer and the overlying clay cover layer increase the airtightness, and the safe and efficient large-scale storage of critical state carbon dioxide is realized; the fly ash-based cementing material can mineralize carbon dioxide in a humid environment, increases the carbon dioxide storage amount, and improves the carbon dioxide storage strength and airtightness.

This utility model belongs to the technical field of concrete mixing equipment and discloses an anti-jamming unloading gate device, including a concrete mixer body. The concrete mixer body includes a hopper and a discharge port opened at the bottom of the hopper. A first mounting frame is fixedly connected to the bottom of the discharge port, and a second mounting frame is fixedly connected to the bottom of the first mounting frame. A movable plate is slidably connected to the second mounting frame, and a push plate is fixedly connected to the movable plate. This utility model sets up two independent drive components, electric drive and manual drive, and selects the connection through a locking component. When the electric push rod cannot work due to failure or power failure, it can be quickly disconnected and switched to manual screw drive mode, so that the operator can still open and close the unloading gate in a very short time, effectively avoiding the problem of concrete solidifying inside the equipment due to prolonged retention.

Provided is an integrated and compact fluid control valve that corresponds to different fluid pressures, controls fluid at high speed with high accuracy in the case of low-pressure fluid flow, also exhibits high sealing force at the time of valve closure in the case of high-pressure fluid flow to reliably prevent leakage, can suppress a decrease in sealing performance to improve durability, and at the same time, can suppress the consumption of compressed air for driving while flowing fluid with a stable Cv value to prevent changes in flow rate. The divided pistons (23) are arranged in series with respect to the valve seat (13) in a resilient state by a plurality of spring members (24) that differ in spring load, an air supply port (25) is formed in the actuator (11), each piston is independently raised and lowered in the actuator with a predetermined stroke (Y1, Y2) by the compressed air from each air supply port or the resilient force of each spring member, and the valve body can be provided to seal the flow path with different sealing forces corresponding to the lowered state of each piston.

The utility model discloses a kind of multi-channel switching mechanism for refrigerant filling valve group, including ball valve, ball valve one end is connected with the installation of coil pipe, pipeline switching mechanism is rotatably installed in coil pipe, another end of coil pipe is connected with the installation of three groups of branch pipe, ball valve is connected with pipeline switching mechanism, and pipeline switching mechanism can be communicated with each group of branch pipe by rotating respectively. The utility model passes through pipeline switching mechanism, and its selective communication of multiple branch pipes is realized by rotating, functional switching is realized, and the stability of coil pipe and entire pipeline system is guaranteed by the double regulation of length and angle of two support structures, the cooperation of three, which meets the channel switching demand of multiple processes, high-precision in refrigerant filling, and also improves the reliability of equipment under complex working conditions through the optimization of mechanical structure.

This utility model discloses a high-temperature flue gas preheating scrap steel system for electric arc furnace steelmaking, including a conveyor, a preheating chamber, a combustion chamber, a discharge valve, a discharge chute, an electric arc furnace, a high-temperature flue, a medium-temperature gas pipe, and a flue gas emission device. A conveyor is installed at the upper end of the preheating chamber, and a combustion chamber is located on the lower outer side of the preheating chamber. Burners are installed on the inner side of the combustion chamber, which is connected to the interior of the preheating chamber via a flue gas channel on the lower side of the preheating chamber. A discharge valve is installed at the lower end of the preheating chamber. A discharge chute and a high-temperature flue are installed on the furnace cover of the electric arc furnace. The discharge chute is connected to the discharge valve, and the high-temperature flue is connected to the interior of the combustion chamber via a flue gas channel on the bottom surface of the combustion chamber. A medium-temperature gas pipe is installed on the upper side of the preheating chamber. A fume hood is installed on the furnace cover and outer side of the furnace shell of the electric arc furnace. Both the medium-temperature gas pipe and the fume hood are connected to the flue gas emission device. This system can preheat scrap steel using the high-temperature flue gas generated during the electric arc furnace steelmaking process, thereby reducing steelmaking energy consumption.

The utility model belongs to the technical field of distillation equipment, and relates to grain steaming and wine steaming dual-purpose intelligent energy-saving distillation equipment, which is characterized in that a waste steam cooling chamber and a wine steam cooling chamber which are separated from each other are arranged in a steam regenerator, so that waste steam in a grain steaming stage and wine steam in a wine steaming stage are respectively and independently recovered; the problem of cross contamination caused by the fact that traditional equipment shares a recovery system is thoroughly avoided, pure white spirit quality is guaranteed, and whole-course efficient recovery of heat energy is achieved; in the grain steaming stage and the wine steaming stage, waste steam containing impurities is independently cooled through a waste steam cooling chamber, waste heat is recycled, wine steam is efficiently subjected to heat exchange through a wine steam cooling chamber, a steam regeneration chamber of a steam regenerator generates low-pressure regenerated steam, and the low-pressure regenerated steam is pressurized through a steam compressor and then supplied to a distillation retort for use. It is ensured that the steaming bucket obtains stable steam pressure in different process stages, meanwhile, the supplement requirement of external fresh steam is reduced, heat is effectively recycled, and 90% of steam consumption of a steaming section in the grain steaming process is saved.

The application discloses a kind of porous mould core structure and device for regenerative plastic supercritical fluid foaming, belong to foaming mould technical field, including upper mould and lower mould, the upper mould and lower mould are respectively installed in drive frame, the lower mould one side is equipped with injection hole, still include positioning rod and knocking device;In the application, convex block is rotated and contacted to contact plate by motor, contact plate is extruded by the protruding portion of convex block, so that contact plate moves to one side, then contact plate drives second knock plate to move by connecting frame and sliding plate, second knock plate drives first knock plate to move by stroke rod, when convex block is separated from contact plate, second knock plate is reset by the rebound force of first spring and knocks, so that foaming fluid flows in upper mould and lower mould due to vibration, avoid the finished product angle defect affecting product quality due to the fact that foaming fluid cannot fully flow due to viscosity.

The utility model discloses a solar light illumination device convenient to installation relates to lighting device technical field, including wall and light pipe, the light pipe fixedly connected at wall top outer wall, the light pipe bottom one end outside fixedly connected with connecting assembly, the connecting assembly includes the abutment ring fixedly connected in the light pipe bottom one end, the position of the circumference outer wall of light pipe bottom one end near bottom is equipped with the thread groove, the thread groove outside is connected with the thread bush, the lamp house is fixed with in the wall hole inside through waterproof gum fixedly connected with rubber washer, the utility model discloses a connecting assembly can be realized device and wall quick fixing and disassembly simultaneously, and can guarantee the airtightness of wall mounting hole position, is favorable for improving the practicality of device.

This invention belongs to the field of sandpaper production technology, specifically relating to a lamination and packaging system and method for dust-free ceramic dry sandpaper. The invention features a pre-assembly mechanism, a sandpaper feeding mechanism, a release liner feeding mechanism, and a lamination and packaging mechanism working collaboratively. The sandpaper and release liner feeding mechanisms respectively achieve precise, non-adhesive, and quantitative material delivery in a single layer, with precise material alignment achieved through a positioning structure. The pre-assembly mechanism utilizes vacuum adsorption and mechanical pressure to pre-assemble the double-layer sandpaper with the release liner, avoiding direct friction damage to the abrasive layers. The lamination and packaging mechanism employs a circumferential ring-shaped film formed by adhesive coating and curing. This invention effectively solves the problems of sandpaper shedding, scratches, and dust accumulation during the packaging process of high-hardness ceramic abrasive sandpaper, ensuring the performance of dust-free sandpaper, significantly reducing the cost of lamination and packaging consumables, and offering high efficiency and excellent alignment accuracy in automated assembly and lamination operations. It is suitable for the standardized mass production of high-precision dust-free ceramic dry sandpaper.

The utility model relates to bathroom cabinet technical field discloses a waterproof and leakage -proof intelligent bathroom cabinet, including cabinet body and table basin, the top of cabinet body places table basin, and the inside of cabinet body is connected with the drawer through slide rail, the front of cabinet body is connected with the cabinet door through hinged joint, the inboard of cabinet body is connected with the lamp panel through screw, the bottom of table basin is inserted with the downspout, the bottom of downspout is inserted with the pipe head, the bottom fixed connection of pipe head has telescopic pipe, and the outer wall of pipe head is inserted with the communicating pipe. The utility model through sealing washer strengthens the sealing between cabinet body and table basin, reduces the possibility that water flow seeps into the inside of cabinet body from the gap, reduces the cabinet body moisture and the risk of internal component damage, the water vapor that can block splashing or dripping to the lamp panel area of waterproof plate, avoid the water vapor direct contact lamp panel, and the water on waterproof plate can be discharged through communicating pipe, pipe head, telescopic pipe, greatly reduce the water leakage hidden danger of lamp panel.