11results about How to "Avoid air leaks" patented technology

The utility model provides a continuous positive pressure ventilation mask which comprises a frame, a mask pad, a forehead silica gel pad, a bent pipe clamping ring, a bent pipe and a hook, and the frame comprises a frame body, a forehead support and a connecting support. The frame body is provided with clamping holes, the clamping holes are provided with fixing supports, and the clamping holes comprise the first clamping hole and the second clamping hole. The frame main body is provided with a headband hanging rack and a clamping block; the mask pad comprises a frame caulking groove and a face silica gel pad, a baffle ring is arranged around the mask pad, and a positioning groove is formed in the baffle ring; the forehead silica gel pad comprises a forehead rubber layer, a forehead liner and a supporting part, the forehead liner is provided with a butt joint part, and the forehead rubber layer and the forehead liner are both provided with arc-shaped connecting parts. By changing the connecting mode of the frame and the mask pad, the air leakage phenomenon between the frame and the mask pad is avoided, the fitting degree of the mask pad and the face is improved, and the mask pad is more comfortable to use. Air leakage between the mask pad and the face is avoided, the oxygen supply amount is increased, and face pressure sores are reduced.

The utility model provides sealing performance detection equipment for a concrete smoke tower, and belongs to the field of sealing detection, and aims to solve the problem of inconvenience in convenient and firm sealing protection, the sealing performance detection equipment comprises a smoke tower body and a mounting rack, the mounting rack is mounted on the smoke tower body, a connecting rod is fixedly connected with a pressing plate, the pressing plate is fixedly connected with a sealing gasket, and the sealing gasket is fixedly connected with the smoke tower body. A conveying pipe is fixedly connected to the pressing plate. Through the arranged sliding block, when a pressing plate is driven to move, pull rods on the two sides can be pulled to drive a limiting plate to move, springs in the sliding block can be extruded when the limiting plate moves, meanwhile, hook-and-loop fasteners on the pull rods can be disengaged from hook-and-loop fasteners on a guide plate, the sliding block can not be hindered, and the sliding block is prevented from being blocked; when the smoke tower body is detected, the sliding block can be driven to move in the guide plate, the sliding block can pull the pressing plate to move downwards through the connecting rod when moving, the sealing gasket on the pressing plate can be fully attached to the smoke tower body for sealing treatment, and the situation of air leakage during detection is avoided.

The application relates to a tritium sampler, which relates to the technical field of tritium sampling equipment and comprises a box body, a sampling head is installed on the box body, a catalytic device and a condensing device are installed in the box body; the catalytic device comprises a catalytic converter, catalytic inlet pipes and catalytic outlet pipes are arranged at two ends of the catalytic converter, an air inlet cooling assembly is installed on the catalytic inlet pipe; an air outlet cooling assembly is installed on the catalytic outlet pipe, the air outlet cooling assembly is communicated with the condensing device through a condensing inlet pipe, a condensing outlet pipe is provided with a fan; the condensing device comprises a cold trap, a water receiving tray is installed below the cold trap, and the water receiving tray is communicated with the outside. The application can prolong the service life of the air inlet pipe and the air outlet pipe, reduce the aging speed, prevent water accumulation in the box body, and improve the use stability of various components.

The utility model discloses a rapid low-resistance repairing device for internal leakage of a heat exchanger, which comprises the heat exchanger, an upper pattern plate and a lower pattern plate are respectively arranged at two ends of the heat exchanger, a plurality of row pipes are arranged in the heat exchanger, and two ends of the row pipes are respectively arranged on the upper pattern plate and the lower pattern plate in a penetrating manner; the leaking stoppage inner sleeve is arranged on any damaged calandria in the heat exchanger, and the outer diameter of the leaking stoppage inner sleeve is smaller than the inner diameter of the calandria. The leaking stoppage inner sleeve has the advantages that the leaking stoppage inner sleeve is tightly combined with the calandria, effective sealing of the damaged perforated calandria can be achieved, the quick low-resistance leaking stoppage effect of a heat exchanger is achieved, and the perforated condition of the calandria can be solved.

The utility model relates to the technical field of film pasting equipment, in particular to touch screen film pasting equipment which comprises a box body, an installation box is fixedly connected to the inner wall of the bottom of the box body, a film pasting table of a door-shaped structure is fixedly connected to the outer wall of the top of the installation box, and a plurality of round openings distributed at equal intervals are formed in the outer wall of the top of the film pasting table. A fan cover is fixedly connected to the outer wall of the bottom of the film pasting table, a negative pressure box is fixedly connected to the inner wall of the mounting box, and a control mechanism is connected between the negative pressure box and the fan cover. According to the negative pressure film pasting machine, the defects in the prior art are overcome, the fan cover, the negative pressure box and the negative pressure fan are arranged in the box body in a matched mode, a round opening in a film pasting table is conveniently matched to adsorb and fix equipment needing film pasting, the equipment needing film pasting is fixed in a negative pressure adsorption mode, and the equipment is prevented from being affected by the clamping plates during film pasting; and the film pasting efficiency of the film pasting device is improved.

The utility model provides a continuous positive pressure ventilation mask which comprises a frame, a mask pad, a forehead silica gel pad, a bent pipe and a hook, and the frame comprises a frame body, a forehead support and a connecting support. The frame main body is provided with a connecting hole and a head band hanging rack; the frame main body is provided with a plurality of clamping blocks; the mask pad is detachably connected to the frame and comprises a frame cover, a face silica gel pad and a blocking wall. The forehead silica gel pad is detachably connected to the forehead support, the forehead silica gel pad comprises a forehead rubber layer, a forehead liner and a supporting part, the forehead liner is provided with a butt joint part, and the forehead rubber layer and the forehead liner are both provided with arc-shaped connecting parts. The fitting degree of the mask pad and the face is improved, the air leakage phenomenon between the mask pad and the face is avoided, the oxygen supply amount is increased, and face pressure sores are reduced.

This utility model discloses a sealing structure for a wet electrostatic precipitator, including a first connecting channel and a second connecting channel, and a sealing element. A first flange and a second flange are respectively provided at the flared ends of the first and second connecting channels, and the first and second flanges are arranged opposite to each other. The sealing element is disposed between the first and second connecting channels, and the sealing element has a first fixing groove and a second fixing groove. The first flange and the second flange are respectively fitted into the first fixing groove and the second fixing groove. After prolonged use, the sealing element will shrink. When the sealing element shrinks, the first and second barrier plates will fit tightly against the outside of the first and second flanges and the gap between them, thereby preventing the gap from widening due to the shrinkage of the sealing element over time and avoiding air leakage.

The utility model provides a metal heat treatment vacuum furnace sealing structure, and relates to the technical field of vacuum furnace sealing. The metal heat treatment vacuum furnace sealing structure comprises a fixed top plate, a connecting ring is fixedly connected to the outer surface of the fixed top plate, a sealing mechanism is arranged outside the fixed top plate and comprises a cover plate, and a blocking plate and a sealing ring are fixedly connected to the outer surface of the cover plate; the outer surfaces of the blocking plate and the sealing ring are both in sliding connection with the connecting ring. According to the sealing structure of the metal heat treatment vacuum furnace, the cover plate, the blocking plate, the sealing ring, the first rotating rod, the swing plate, the second rotating rod, the movable plate, the connecting plate, the sliding frame and the air cylinder are arranged in a matched mode, so that the connecting ring can be completely sealed through blocking of the blocking plate and surrounding of the sealing ring on the periphery of the blocking plate; and the phenomenon of air leakage between the blocking plate and the connecting ring is effectively avoided, so that the fixed top plate reaches a completely sealed state.

The washing machine comprises a machine body and an inner barrel, a containing cavity is formed in the machine body, and the inner barrel is detachably installed in the containing cavity; and the insertion structure is arranged between the inner barrel bottom and the accommodating cavity and extends along the mounting direction of the inner barrel. The inserting structure extending in the mounting direction of the inner barrel is arranged between the inner barrel bottom and the accommodating cavity, so that when the inner barrel is mounted, the inserting structure between the inner barrel bottom and the accommodating cavity is jointed, and the mounting position of the inner barrel can be limited by utilizing the inserting structure and the magnetic suction connecting structure in the negative pressure dewatering process; the inserting structure can counteract inclined pulling force generated by eccentric negative pressure and shrinkage of the inner barrel wall, the inner barrel bottom is prevented from inclining, the burden of a magnetic attraction structure between the inner barrel and the containing cavity is relieved, the installation stability of the inner barrel is improved, and therefore the sealing performance of the inner barrel is guaranteed, and the stable dewatering effect is guaranteed.

The utility model discloses a back cover sealing performance detection device for square bottom valve bag production in the technical field of square bottom valve bag production, which comprises a working table, two threaded rods are rotatably connected on the working table, the two threaded rods are in transmission connection, two pressing plates are arranged between the two threaded rods, an inflation mechanism is arranged on the working table, and the inflation mechanism is connected with the two pressing plates. The inflation mechanism is located between the two pressing plates, a rotating column is rotationally connected to the workbench, a fixing frame is installed on the rotating column, a detection mechanism is installed on the fixing frame, a marking mechanism is arranged on the fixing frame, a reduction gearbox is installed on the lower side of the workbench, the rotating column is in transmission connection with the reduction gearbox, and a driving motor is installed on the workbench. The output end of the driving motor is in transmission connection with one of the threaded rods, so that the air tightness of the bag body is effectively detected, the production quality is guaranteed, the air leakage condition of the product in the production process is prevented, and the production quality is further guaranteed.

The utility model relates to the technical field of clothes processing equipment, in particular to a drying system of drying equipment and the drying equipment, and aims to solve the problem that the drying efficiency is affected due to the fact that an insertion port of an existing drying air duct is prone to air leakage. Therefore, the drying system comprises a drying air channel, a filtering device and a sealing component, a first inserting opening is formed in the drying air channel, the filtering device comprises a shell and a filtering assembly, one end of the shell is communicated with the first inserting opening, and one part of the filtering assembly penetrates through the first inserting opening and extends into the drying air channel; the filtering assembly can move relative to the shell, the sealing component is installed at the first inserting opening and located between the drying air channel and the shell, the sealing component is annular and surrounds the filtering assembly, and the inner wall of the sealing component is attached to the filtering assembly in a sealed mode. Through the arrangement, the situation of air leakage can be avoided, the sealing component is arranged between the shell and the drying air duct, and the connection tightness of the sealing component and the drying air duct can be guaranteed.