14results about How to "Block flow" patented technology

The highway engineering slope protection device comprises a connecting plate, through holes are formed in the two sides of the connecting plate, the highway engineering slope protection device further comprises two expansion frames, an adjusting and limiting assembly, a protection net and a positioning assembly, the two expansion frames are hinged to the bottom of the side wall of the connecting plate, and the protection net is movably connected to the inner sides of the expansion frames through the adjusting and limiting assembly; the adjusting limiting assembly is slidably arranged on the outer wall of the expanding frame, and the positioning assembly penetrates through the connecting plate to be movably connected to the middle of the connecting plate and used for fixing the position of the connecting plate and adjusting the angle of the symmetrical expanding frame. The utility model belongs to the technical field of slope protection devices, and particularly relates to a highway engineering slope protection device which aims at water and soil conservation of soil shoulders on the two sides of a highway, improves the covering quality of a vegetation net and prevents gravel from rolling.

The utility model relates to the technical field of spiral spray guns, and particularly discloses a hot melt adhesive spiral spray gun which comprises a gun body, an air flow heating cavity, an air inlet, an air guide hole, a cavity sealing piece and an electrical bar are arranged at the bottom of the gun body, the electrical bar is used for heating air flow entering the air flow heating cavity, and the air flow heating cavity is composed of a plurality of bent channels; the glue spraying valve is connected and mounted on the gun body through a screw, a through hole is formed in the center of the glue spraying valve, and a coaxial two-stage threaded seat, a nozzle, a biconical valve core and a gas guide sleeve are sequentially arranged at the bottom of the glue spraying valve; by means of the conical matching structure of the air guide sleeve and the nozzle and the design of the air guide groove, a stable spiral airflow field is formed, spiral rubber threads with the width as low as 3 mm can be sprayed in combination with control over flowing of rubber liquid through the double-conical valve element, the rubber threads are evenly and continuously distributed, and the spraying effect is good. And the narrow bonding requirements of paper bag sealing, bonding of a wet locking cover and a packaging box and the like are met.

The utility model discloses a combustible gas detector gas-collecting hood, which particularly relates to the technical field of detector gas-collecting hoods, and comprises a combustible gas detector, a detection tube is fixedly connected to the bottom of the combustible gas detector, a limiting ring and a protective tube are sleeved in the middle of the detection tube, and a gas-collecting hood is arranged at the bottom of the combustible gas detector. An exhaust hole and a mounting hole are formed in the top of the gas-collecting hood, and a plurality of reinforcing rods are fixedly connected to the middle of the gas-collecting hood. According to the utility model, the gas-collecting hood is firstly mounted in the middle of the detection tube, and is clamped and fixed through the matching of the protective tube and the limiting ring, so that the gas-collecting hood can be conveniently mounted and fixed, the gas-collecting area is increased through the gas-collecting hood, sufficient gas collection can be ensured, and a better dustproof and rainproof effect can be achieved during use; and meanwhile, the dustproof net plate can be used for carrying out dustproof protection on entering gas, so that impurities are prevented from entering the detection channel and blocking gas flow, and the protection effect is improved.

This utility model provides a molding die for an energy-saving, anti-tangle refrigerator door seal, relating to the field of refrigerator door seal molding technology. It includes: a fixed base plate; grooves at both ends of the fixed base plate; and a heating mold shell fixedly installed in the middle of the fixed base plate. By using two mold frames in conjunction with a sealing plate to effectively block and restrict the material in the door seal groove, material loss is prevented. The opposing mold frames and sealing plate form a tightly closed space, completely preventing material from flowing to non-target areas and avoiding uneven filling due to material loss. The closed mold automatically presses down to compress and shape the material in the door seal groove. In this closed environment, pressure can be evenly transmitted to the entire material, solving the problem that refrigerator door seal material needs to be injected into the door seal groove for compression molding, thus requiring mold frames and sealing plates to automatically seal the material in the door seal groove, otherwise the material in the door seal groove will leak during the molding process.

The utility model relates to the technical field of circulating devices, and discloses a filter pressing gypsum wastewater circulating device which comprises a reaction tank, a bearing plate and a storage box, the bearing plate is fixedly connected to the top of one end of the reaction tank, and the storage box is provided with a flocculation bin and a scale inhibitor bin in a penetrating mode from the top. The top of the storage box is connected with a plurality of magnetic suction flip covers through hinges, and the plurality of magnetic suction flip covers are connected to the top of the flocculation bin and the top of the scale inhibitor bin through magnetic suction. And the rotor rotates to quantitatively add the medicament into the reaction tank from the bottom of the bin through the blanking pipe and the blanking port. The feeding amount of the rotary feeder is controlled by adjusting the rotating speed, uniform conveying of chemicals is guaranteed through gaps between blades and pipe grooves of the rotary feeder, a discharging channel can be cut off at any time through cooperation of a magnetic suction gate and a hydraulic rod, excessive feeding is avoided, and the feeding amount of the chemicals can be accurately adjusted by controlling the rotating speed of the rotary feeder.

The utility model discloses an external grid bar mounting structure and glass door and window belong to door and window technical field. External grid bar mounting structure includes glass, first grid bar and second grid bar. First grid bar and second grid bar are respectively established in the opposite sides of glass, and the side of first grid bar towards glass is equipped with first storage wall and first shield wall, and the side of second grid bar towards glass is equipped with second storage wall and second shield wall, and the side of first storage wall away from first shield wall is equipped with the connecting glue who links with glass, and the side of second storage wall away from second shield wall is equipped with the connecting glue who links with glass, and first shield wall and second shield wall are used for reducing the visible angle of connecting glue exposed through glass respectively. The utility model discloses set up storage structure and shield structure on the grid bar, effectively block and shield connecting glue, not only solve the glue leakage problem of the grid bar in the prior art, but also improve the beauty and connection firmness of the grid bar.

This utility model provides a quick replacement and maintenance device for air conditioning filters in subway vehicles, relating to the technical field of air conditioning filters in subway vehicles. The utility model includes mounting rails fixedly installed on the inner walls of both sides of the outer casing. A filter body is slidably inserted between the two mounting rails. A handle is fixedly installed on the top surface of the filter body. Vertical grooves are formed on the inner walls of both sides of one of the mounting rails. A baffle plate is slidably connected between the two vertical grooves. A groove is formed on the surface of the baffle plate, and a sliding plate is slidably connected inside the groove. A rod is fixedly installed on the surface of the sliding plate. A matching insertion hole is formed on the inner wall of one of the vertical grooves. This utility model, through its installation device, utilizes the sliding cooperation design between the mounting rails and the filter body, allowing for easy removal and installation of the filter without the need for special tools. The handle facilitates easy pulling, greatly simplifying the operation process.

This utility model discloses a waterproof drainage device for water-based spinal endoscopic lateral approach surgery, relating to the field of water-based spinal endoscopic lateral approach surgery technology. This utility model aims to solve the problems of existing waterproof membranes and devices for water-based spinal endoscopy, which lack standardized specifications and are all custom-cut and set by the surgeon, leading to prolonged operation time, inconsistent quality, and wet towels on the back of prone patients, easily causing infection in the surgical area. Furthermore, poor drainage of fluids generated during prone lateral approach surgery can flow along the membrane and endoscope to the sterile towels laid on the operating table. If the patient sleeps on a wet operating table, it can cause intraoperative colds, postoperative shivering, even fever, and slow recovery. The fluid can also contaminate the sterile environment of the operating room floor. This utility model includes a three-sided foldable side panel and a three-sided waterproof membrane, with the three-sided waterproof membrane placed on the three-sided foldable side panel.

This utility model discloses a metal-faced rigid polyurethane sandwich panel with good thermal insulation performance, belonging to the technical field of building insulation materials. It includes an upper metal plate, with an upper trapezoidal reinforcing block fixedly installed on the upper surface of the upper metal plate, and a rigid polyurethane sandwich layer fixedly installed on the lower surface of the upper metal plate. Transverse reinforcing ribs are fixedly installed on the lower surface of the rigid polyurethane sandwich layer. This metal-faced rigid polyurethane sandwich panel with good thermal insulation performance forms a double thermal barrier through a multi-layer insulation structure design consisting of a rigid polyurethane sandwich layer and an insulation particle layer. The rigid polyurethane sandwich layer, with its closed-cell microporous structure, blocks the main heat conduction path, while the expanded perlite particles and rectangular cavities within the insulation particle layer further weaken heat convection and radiation. The synergistic effect of these two elements reduces the overall thermal conductivity of the panel compared to traditional panels, effectively reducing heat loss and meeting the insulation requirements of ultra-low energy consumption buildings.

The utility model discloses a refrigeration equipment drainage device, include: refrigeration unit, including the box body for carrying out the refrigeration to refrigeration product, drainage unit, including the adapter subassembly for the water in the box body is arranged in the water outlet end of box body and is used for carrying out the drainage, the valve door subassembly for the drainage state in the box body is arranged in the lower extreme of adapter subassembly and is used for controlling and blocking the cold air in the box body and is discharged. When the water of a certain liquid level height is gathered in the valve door subassembly, under the pressure effect of water pressure to valve door subassembly, the valve door subassembly is opened automatically, so that the water in the valve door subassembly is discharged, when the water in the valve door subassembly is discharged partly, the valve door subassembly is closed again, ensure that the water in the valve door subassembly can block the flammable gas in the box body and flow to the compressor, and the explosion risk is caused, also avoid the cold air in the box body and be leaked through the drain pipe and lead to the energy consumption increase.

The invention provides a photoelectric co-packaging chip preparation method for improving bottom filling creeping glue. The method comprises the following steps: step S1, providing a semiconductor substrate for reserving an optical port for mounting an optical chip; s2, manufacturing a stop block at a side position of an optical port reserved on the semiconductor substrate and used for mounting an optical chip; s3, an optical chip is attached to the semiconductor substrate according to the reserved design; and S4, carrying out glue dispensing operation on the semiconductor substrate in a manner that the bottom filling glue of the photoelectric co-packaging chip does not pollute the optical port through the blocking of the baffle block. According to the invention, the stop block is used as a physical barrier, and can effectively stop the bottom filling colloid from flowing through during the subsequent dispensing operation, so that the cleanliness of the optical port is protected, and the product yield is improved.

The present invention relates to a small vehicle (1), preferably a freight bicycle (1), having a chassis (10) having at least two wheels (11) with pneumatic tires, the small vehicle also having a frame (12), wherein the chassis (10) and the frame (12) are elastically connected to each other by means of at least one air spring (13), and the small vehicle also having a compressed air source (15) configured and designed to supply compressed air to the air springs (13), wherein the compressed air source (15) is also configured and designed to be connected to the pneumatic tires and to fill the pneumatic tires with compressed air.

This invention discloses an integrated switch-on filter, comprising a housing, a filtering mechanism, and a water-stopping mechanism. The housing has an inner cavity, with an inlet pipe and an outlet pipe communicating with the inner cavity. A switch valve is installed on the inlet pipe to open or close the inlet pipe. The filtering mechanism is detachably connected to the inner cavity and positioned between the inlet and outlet pipes, filtering water. The water-stopping mechanism includes a check valve and a sealing ring. The check valve is fixedly connected to the inlet pipe, and the switch valve is positioned between the check valve and the filtering mechanism. The check valve prevents water from flowing from the filtering mechanism to the inlet pipe, and the sealing ring is positioned between the check valve and the inlet pipe. This integrated switch-on filter not only prevents water backflow into the water pipe, thus preventing water source pollution, but also improves the filter's integration, reduces the installation space required, and enhances the user experience.

The utility model belongs to the technical field of rail transit equipment, and particularly relates to a sound insulation folding shed device for a through channel, a main body structure comprises shed cloth and a fabric frame for clamping the shed cloth, during manufacturing, inner-layer shed cloth and outer-layer shed cloth which are arranged in a mirror image mode are sewn into the shed cloth, the shed cloth is connected with a vehicle body frame through the fabric frame, the inner-layer shed cloth and the outer-layer shed cloth are both foaming shed cloth, and the inner-layer shed cloth and the outer-layer shed cloth are made of foam. Comprising a fabric layer, a silica gel layer and a silica gel foaming layer, the silica gel layer and the silica gel foaming layer are arranged on the two sides of the fabric layer, fine holes are filled in the silica gel foaming layer, the silica gel foaming layer is similar to sponge and can effectively absorb sound wave energy, after sound enters, air in the holes vibrates and rubs with hole walls, sound energy is converted into heat energy to be consumed, and sound transmission is weakened; compact self-skinning is arranged outside, holes are not communicated with one another, air flow is blocked, sound transmission is reduced, and the sound insulation effect is more obvious; the through passage is simple in structure, the sound insulation performance of the through passage is enhanced on the premise that the light weight requirement of the through passage is met, and the comfort of passengers is improved.