13results about How to "Improve the tightness" patented technology

This utility model discloses a leak-free filter cartridge filter, relating to the technical field of filter cartridge filters. It includes a housing and a fastening assembly. A filter cartridge body is disposed inside the housing, and an mounting ring is installed on the outer side of the top of the filter cartridge body. A fixing plate is installed on the inner wall of the housing. The fastening assembly, used for pressure sealing to prevent leakage, is located on the upper end of the fixing plate. The fastening assembly includes a pressure plate, a sealing strip, a connecting frame, a mounting plate, and a mounting rod. A sealing strip is installed on the lower end of the pressure plate, and a connecting frame is connected to the upper end of the pressure plate. The mounting plate is connected to the upper end of the connecting frame, and a mounting rod is installed on the upper end of the mounting plate. This leak-free filter cartridge filter uses the fixing plate and pressure plate to clamp and fix the mounting ring from the outside. As the mounting plate is installed inside the housing, the pressure plate moves downward, applying pressure to the mounting ring and the fixing plate, increasing the sealing between them and preventing leakage due to aging.

The application relates to the technical field of image scanning, in particular to an image sensor which comprises a support, a frame body and an end cover connected to the end of the support and the frame body, the support is connected to the bottom of the frame body, the middle part of the frame body is penetrated along the X-axis direction, the two end parts of the frame body are sealed around in the YZ plane, a first chamber with a sealed periphery and a penetrated middle part is formed, the top of the frame body is provided with an opening which is connected with the first chamber in a penetrating mode along the Z-axis direction, a glass is mounted on the top opening of the frame body, and the end cover is detachably and sealingly connected with the end of the frame body through a sealing gasket. The application can effectively prevent external impurities such as dust and water vapor from entering the inside of the first chamber, avoids pollution or corrosion of the core components in the first chamber, greatly reduces the equipment failure risk caused by impurities, guarantees long-term stable operation of the equipment, and has the advantages of good sealing performance, high practicability and the like.

The utility model discloses a base station radio frequency power amplifier module sealed protection structure relates to base station module technical field, including protection upper box and heat abstractor, the below of protection upper box is provided with protection lower box, and the heat abstractor for buffering and heat dissipation sets up inside protection upper box, and heat abstractor includes partition, glue injection groove, installation slot, heat transfer sheet and fin, the inside of protection upper box is provided with glue injection groove to partition, and the surface of partition is provided with installation slot, the inside installation of installation slot has heat transfer sheet. This base station radio frequency power amplifier module sealed protection structure is separated by partition and is separated in protection upper box and protection lower box inside glue injection space, can still increase the firmness and the sealing degree of fin installation when increasing the protection box buffering effect after the glue injection in the glue injection groove interior, and installation slot is used for the installation of heat transfer sheet, and heat transfer sheet transfers the heat generated when module works to fin, and dissipates heat through fin.

The application discloses a threaded joint for a steel pipe and belongs to the threaded joint field. The threaded joint for the steel pipe comprises a joint body and a steel pipe body which is threadedly connected in the joint body, further comprises a locking sleeve which is symmetrically arranged on both sides of the joint body and sleeved on the steel pipe body, a sealing groove which is symmetrically arranged at both ends of the joint body, an extrusion ring which is symmetrically fixed on the locking sleeve and matched with the sealing groove, an airbag ring which is fixed in the sealing groove and matched with the extrusion ring, and a fixing assembly for fixing the joint body. The application effectively improves the sealing degree of the joint body and the steel pipe body and effectively improves the installation efficiency of the joint body and the steel pipe body.

The application discloses a sealable sealing strip assembly capable of directional heating in the field of rail car doors, which comprises a sealing strip and a door leaf, a mounting cavity is arranged in the sealing strip, a heating device and a heat insulation structure are arranged in the mounting cavity, the heating device is wrapped in the heat insulation structure, one side of the heating device is in contact with the sealing strip and faces the door leaf, a sealing rubber strip is mounted on the door leaf, the door leaf is forced to move, and the sealing rubber strip intermittently contacts a heat conduction surface of the sealing strip; in the application, the heat insulation structure and the heating device are arranged in the mounting cavity of the sealing strip, the heat insulation structure wraps around the heating device, only one side is left as a heat transfer port, the concentrated one-way conduction of heat energy is ensured, the position between the rubber strip of the car door and the sealing strip which may be iced is heated and kept warm during actual installation, the heat energy utilization rate is improved, the power burden of the vehicle is reduced, and the application is more energy-saving and environment-friendly.

The utility model relates to the technical field of lasers, and provides a novel laser, which comprises a shell, and a laser chip and a spherical lens which are arranged in the shell, the shell comprises a tube base and a shell cap arranged on the tube base in a covering mode. The shell cap is a full-transparent cap; the laser chip and the spherical lens are respectively arranged above the tube seat; the emergent end of the laser chip faces the spherical lens; the laser chip is electrically connected with the plurality of tube legs; and a plurality of pipe legs extend out of the shell from the pipe seat. According to the utility model, a product side surface light emitting and light path internal coupling mode is adopted, which is convenient for use and assembly in a finished product.

The utility model provides a water fender for a water conservancy project, which relates to the technical field of water conservancy project materials and comprises a horizontal plate, a clamping groove is formed in one side of the horizontal plate, a clamping block is fixedly connected to one side of the horizontal plate, an empty groove is formed in the upper surface of the horizontal plate, and positioning rods are fixedly connected to the two ends of the empty groove. The device has the advantages that the fixing barrel is connected with the vertical plate through the connecting block, when the water level on one side of the vertical plate rises, the fixing barrel connected with one side of the vertical plate is fixed through the positioning rod, the weight and thrust are increased, the attaching degree of the bottom of the vertical plate to the surface of the horizontal plate is increased by means of the weight of water, and the device becomes stable; the stability of the whole structure is good, the clamping block on one side of the horizontal plate is connected with the clamping groove in a clamped mode, the front blocking groove in one side of the vertical plate is clamped with the rear blocking blocks of other water baffles, the rear blocking groove in one side of the vertical plate is clamped with the front blocking blocks of other water baffles, the sealing degree between the water baffles is increased, and the flood prevention capacity and the waterproof capacity are improved.

The utility model discloses a kind of double sealing layer anti-leakage structures for rain sewage pumping station gate, belong to rain sewage pumping station gate sealing technical field.The structure is aimed at the problem that the existing gate sealing device is prone to wear, aging or failure due to single sealing layer, which increases the risk of leakage, and improves the sealing reliability by adopting double sealing layer design.The technical scheme points include: gate frame, gate plate movably arranged in the frame channel, and main sealing assembly and auxiliary sealing assembly respectively installed on the front and back of the frame;The main sealing assembly is located on the side of the frame facing the water flow direction;The auxiliary sealing assembly is located on the side of the frame facing away from the water flow direction;Form double sealing barrier.The structure is mainly used for rain sewage pumping station gate system, can effectively prevent sewage or rainwater leakage, improve the safety and stability of pumping station operation, reduce maintenance requirements, and prolong the service life of equipment.

The utility model discloses a vacuum environment dual-drive pipe clamp valve which comprises a valve shell, an elastic pipe core arranged in the valve shell, a first pushing mechanism and a second pushing mechanism, the first pushing mechanism and the second pushing mechanism are arranged on the two sides of the valve shell respectively, the elastic pipe core penetrates through the valve shell, and the two ends of the elastic pipe core are fixedly connected to the valve shell; movable rods of the first pushing mechanism and the second pushing mechanism penetrate through and are slidably connected to the outer wall of the valve shell, and the movable rods of the first pushing mechanism and the second pushing mechanism can move towards the elastic pipe core and extrude the elastic pipe core; and the valve shell is provided with a vacuum suction port. According to the utility model, the service life of the pipe core of the pipe clamp valve in the vacuum environment can be prolonged, the use cost of the pipe clamp valve is reduced, and the accuracy of the conveying quantity of the pipe clamp valve is improved, so that the pipe clamp valve can adapt to injection of high-viscosity and high-sensitivity explosives and powders in the vacuum environment.

The utility model discloses a stone paint storage barrel, and relates to the technical field of paint storage. The garbage can comprises a can body, a can cover is installed on the top of the can body in a threaded mode, a circular containing groove is formed in the top of the can body, and a sealing air bag is arranged in the circular containing groove. By rotating the barrel cover again, the bottom end of the outer wall of the barrel cover gradually gets close to and begins to extrude the annular air bag, it is worthy of noting that the size of the annular air bag is larger than that of the sealed air bag, the amount of air stored in the annular air bag is larger, and after the annular air bag is extruded, the internal air reversely passes through the multiple air communicating pipes and flows to the sealed air bag again; the middle part of the sealing air bag is still extruded by the sealing plate, and the expanded sealing air bag can only extend towards the two sides of the sealing plate and is tightly attached to the two ends of the sealing plate, so that a tight barrier is formed at the joint of the barrel cover and the barrel body, and external air is effectively prevented from entering the barrel body; and the reaction with the stone coating in the barrel is avoided.

This application discloses a cleaning robot and its application, including a dust collection box, a base station, and a cleaning system. The cover of the dust collection box can switch between a first state and a second state. When the dust collection box is in the dust collection state, the cover is in the first state, and the garbage collected by the cleaning robot enters the dust collection chamber through the dust collection port. When the dust collection box is in the dust removal state, the cover is in the second state, which increases the sealing of the dust collection chamber, and the garbage in the dust collection chamber is discharged through the dust removal port. This application can use a fan to clean the garbage in the dust collection box. Especially for the case where the dust collection box of this application is an open-type dust collection box, this application allows the dust collection box to be automatically cleaned by fan suction, which is beneficial for realizing the automatic cleaning of open-type dust collection boxes.

The invention discloses an asphalt pavement construction water seepage detection device, and belongs to the field of asphalt pavement detection.The asphalt pavement construction water seepage detection device comprises a vehicle body, a measuring cylinder is arranged in the vehicle body, the lower end of the measuring cylinder is fixedly connected with a transverse plate, the lower end of the transverse plate is fixedly connected with a supporting rod, and the lower end of the supporting rod is fixedly connected with a pressing block; the upper end of the pressing block is fixedly connected with a pipe fitting communicating with the lower end of the measuring cylinder, the right side of the pipe fitting is fixedly connected with a valve, a spraying assembly is arranged in the vehicle body, when the pressing block moves downwards, glue spraying work can be automatically conducted, the rotating block sprays glue around a circle, then an annular sealing ring is formed, and the pressing block moves downwards to be attached to sealant; and the rotating block has a certain annular limiting effect on the sealant, so that the fitting effect of the pressing block and the sealant is better, the situation of water leakage is avoided, water can only seep through the asphalt pavement, the detection work is more efficient, the sealing effect can be improved, and the accuracy of detection data is improved.

This invention discloses a pressure-increasing water-stopping screw rod, relating to the field of water-stopping screw rod technology. It includes two tensioning screw rods, a water-stopping part, two traction members, and a limiting and unlocking assembly. An elastic sealing part is fixedly sleeved on the outer periphery of the water-stopping part. The water-stopping part includes two eccentrically arranged eccentric members, with the outer side of the eccentric members and the inner side of the elastic sealing part forming an expansion cavity. Traction members are respectively disposed on both sides of the water-stopping part, and each traction member includes a connecting section, a sliding rod, and a sealing plate. The sealing plate is placed inside the eccentric members and is in a sealed sliding connection. The sealing plate moves within the eccentric members, causing the elastic sealing part to expand. The limiting and unlocking assembly keeps the elastic sealing part in an expanded state. This invention also discloses a casting template, which includes a formwork support. A tie rod is provided on the formwork support, and the pull plate of the pressure-increasing water-stopping screw rod is engaged with the tie rod. By setting the above components, this invention effectively extends the path of water penetration, achieving a multi-stage sealing effect.