113results 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.