17results about How to "Avoid tight seals" patented technology

The utility model discloses a high-pressure sealing structure of high-temperature sterilization equipment for edible mushroom production in the field of high-pressure sealing, which comprises a sealing component, the sealing component comprises a sealing cover, the upper surface of the sealing cover is movably connected with a fixing bolt, and the outer surface of the sealing cover is fixedly connected with a first sealing ring; a second sealing ring is fixedly connected to the outer surface of the sealing cover, a spring column in the anti-leakage assembly is arranged, and when the second sealing ring extrudes the surface of a connecting pad, the spring column can eject a connecting plate upwards, so that the spring column adapts to size changes through elastic deformation of the spring column, and pressure on a sealing component is always kept; the sealing surfaces are tightly attached, so that the good sealing effect is maintained, meanwhile, pressure distribution can be automatically adjusted according to the actual conditions of the sealing surfaces, the problem that sealing is not tight due to the fact that local pressure is too high or too low is solved, and sealing reliability is improved.

A vacuum valve of an integrated die-casting die comprises the die-casting die, a vacuum valve body, an oil cylinder and an exhaust pipe, the vacuum valve body and the oil cylinder are installed in a vacuum valve installation cavity and an oil cylinder installation cavity which are formed in the die-casting die respectively, a valve element arranged in an inner cavity of the vacuum valve body is connected with the oil cylinder, and the inner cavity of the vacuum valve body extends out of the die-casting die through the exhaust pipe. An inner cavity of the vacuum valve comprises a guide section, an air exhaust section and a sealing section, a sealing sleeve is arranged in the guide section, a mounting hole is formed in one side of the air exhaust section, an air exhaust pipe is mounted in the mounting hole and communicated with the air exhaust section, the sealing section is a stepped hole, the diameter of a small-diameter section is the same as that of the air exhaust section, and a middle-diameter section is a straight surface section. The small-diameter section is communicated with the cavity and used for forming straight face sealing with the straight face of the valve element end, the large-diameter section is communicated with the cavity, a first inclined face is arranged between the small-diameter section and the medium-diameter section and used for forming inclined face sealing with the inclined face of the valve element end, and a guide inclined face is arranged between the medium-diameter section and the large-diameter section.

The invention relates to an oral cavity cleaning appliance which comprises a handle extending along a first axis and a flushing head movably arranged at the end of the handle. The handle comprises a shell, a movement device, a water storage area and a pump. A liquid storage cavity and a driving cavity separated from the liquid storage cavity are formed in the shell; the moving device is arranged in the driving cavity and used for driving the flushing head to reciprocate along the first axis; the moving device comprises a moving shaft, and a hollow runner extending along a first axis is arranged in the moving shaft; the moving shaft comprises a first end and a second end which are oppositely arranged, and the first end penetrates through the end, close to the flushing head, of the handle and is connected with the flushing head; the water storage area is arranged in the driving cavity; the second end extends into the water storage area, and the water storage area is used for providing a space for the movement shaft to move along the first axis; the pump is arranged in the driving cavity and communicates with the liquid storage cavity and the water storage area. The pump pumps liquid in the liquid storage cavity to the flushing head through the water storage area and the hollow flow channel.

The utility model discloses a kind of sealing equipment for packaging production of Undaria pinnatifida, belong to packaging sealing field, including mounting bracket, conveying assembly is installed on mounting bracket, mounting bracket one side is fixedly connected with mounting plate, sealing mechanism is provided on mounting bracket, sealing mechanism includes stand, stand is fixedly connected on mounting bracket, cylinder is fixedly connected with the top of stand, cylinder output end is fixedly connected with sealing machine. Advantageous effect lies in: setting guiding mechanism, positioning mechanism and power mechanism, the setting of guide plate can make Undaria pinnatifida packaging bag be right below sealing machine, ensure that Undaria pinnatifida can be sealed and clamped in the sealing position of sealing machine by clamp plate, it is favorable to improve sealing quality, and by the setting of connecting sleeve and connecting frame, when Undaria pinnatifida is clamped by clamp plate, conveying assembly temporarily stops action, avoid the situation that sealing is not strict, further ensure sealing integrity.

The utility model provides a photovoltaic greenhouse agricultural shed support which comprises a support body, the support body comprises a plurality of stand columns and a plurality of girders erected on the stand columns, the girders are arranged side by side, a plurality of purlines are arranged on the surfaces of the upper sides of the girders at intervals, and photovoltaic panels are installed on the purlines; first angle aluminum is arranged on the opposite surfaces of every two adjacent girders, a sunlight plate is connected between the first angle aluminum arranged on the opposite surfaces of every two adjacent girders, second angle aluminum is arranged on the opposite surfaces of every two adjacent stand columns, and a sunlight plate is connected between the two second angle aluminum arranged on the opposite surfaces of every two adjacent stand columns. The sunlight plates are fixed through the angle aluminum to replace traditional plastic cloth, the problems that the plastic cloth is prone to aging and needs to be replaced frequently are solved, the durability of materials is remarkably improved, and the splicing connection mode of the sunlight plates and the angle aluminum avoids the problem that girders and purlines cannot interfere with covering installation films due to the fact that photovoltaic plates need to be installed.

A new municipal road drainage structure, including well seat, the bottom of well seat is communicated with drainage pipeline, the top of well seat is embeddedly connected with grid plate, the inside of well seat is provided with filter assembly one, the top of drainage pipeline inner wall is detachably installed with movable plate, movable plate is circumferentially arrayed with multiple drainage holes, sealing assembly is arranged between movable plate and drainage pipeline inner wall, movable plate below drainage pipeline inner wall is detachably installed with movable frame, movable frame and movable plate are provided with same number of float ball as drainage hole, float ball limiting assembly is arranged between movable frame and movable plate outside each drainage hole, filter assembly two is arranged on drainage pipeline inner wall below movable frame, the utility model discloses through multilayer filtration and prevent backflow design, improve drainage stability, optimize component dismounting structure simultaneously, convenient maintenance, be applicable to municipal road drainage scene.

The utility model relates to the technical field of drinking water detection equipment, and discloses a portable drinking water rapid detection device which comprises a shell, the lower end of the shell is connected with a drainage pipe, the upper end of the shell is connected with a water inlet pipe, a rubber sleeve is arranged in the water inlet pipe, an inner through hole of the rubber sleeve is in an inverted cone shape, and a first clamping plate is arranged at the upper end of the water inlet pipe. A second clamping plate is arranged on one side of the first clamping plate. The water inlet pipe structure comprising the rubber sleeve is arranged on the shell, the inverted-cone-shaped design inside the rubber sleeve is utilized, adaptive sealing connection of drinking water outlet pipes with different pipe diameters is achieved, and the problem that sealing is not tight due to pipe diameter differences in a traditional connecting mode is effectively solved. In the connecting process, the second clamping plate is driven to retract inwards through the threaded sleeving relation between the bolt and the rotating sleeve, the first clamping plate is driven by the U-shaped rod to move synchronously, and the drinking water outlet pipe is clamped and fixed.

The box body of the battery pack comprises a cover plate and a first edge beam, the cover plate comprises a plate body and an eave portion connected to the periphery of the plate body, an opening is formed in the side, away from the plate body, of the eave portion, the first edge beam comprises a bearing portion and a protruding portion, the bearing portion bears the eave portion, and the protruding portion is arranged on the edge of the eave portion. The protruding part is arranged on the side, facing the eave part, of the bearing part in a protruding mode and located on the side, deviating from the plate body, of the eave part. Wherein the convex part is partially arranged in the opening, a mounting hole is formed in the part, opposite to the opening, of the convex part, and a fastener is arranged in the mounting hole in a penetrating mode so that the first edge beam can be mounted on external equipment. The convex part of the first edge beam is convexly arranged on the side, facing the eave part, of the bearing part and located on the side, deviating from the plate body, of the eave part, and the convex part is partially arranged in the opening of the eave part, so that stable and tight connection of the cover plate and the first edge beam can be realized, and the sealing performance and the space utilization rate of the box body of the battery pack are improved.

The utility model relates to a box door sealing device of vacuum freeze drying machine, including machine body and box door, one side of box door is hinged with machine body, the back portion fixed mounting of box door has the sealing ring, the size of sealing ring is same with the inside size of machine body, the back portion mounting of box door has the support assembly convenient for supporting sealing ring, support assembly includes four and sealing ring four sides corresponding resistance board, one side mounting of machine body has the fixed component convenient for fixing box door. The utility model discloses through the setting of support assembly, can make four resistance boards synchronous and evenly move to sealing ring, ensure that sealing ring can tightly adhere to the opening of machine body in each direction, effectively avoid the problem of not tight sealing because of local support shortage, solve the problem that the existing device needs to rotate two turbine discs to make both sides pressure plate support sealing ring, and the efficiency is lower, and only to the both sides of sealing ring support, the effect is poor, influence sealing effect.

The utility model provides a tearing line die of an aluminum plastic packaging machine, which relates to the technical field of packaging machinery and comprises a blade base, a blade fixing plate, a separating plate, a tearing line bottom die, a sliding shaft, a shaft sleeve, a transverse blade, a vertical blade and a spring, and the transverse blade is provided with a blade body gap. The utility model is characterized in that the width of the vertical groove is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the vertical groove; the width of the blade body gap of the transverse blade is greater than the thickness of the vertical blade, so that the position of the vertical blade can be adjusted in the blade body gap; the width of the cutter groove is larger than the thickness of the vertical blade. The position of each vertical tearing line can be independently adjusted, the problem of tearing line printing deviation caused by shrinkage difference of packaging materials is solved, and the sealing performance and quality of products are improved.

The invention discloses an anti-exosmosis chemotherapy dosing device for medical oncology, which belongs to the technical field of tumor chemotherapy and comprises a moving rod, a support rod is fixedly mounted at the top end of the moving rod, a dosing bottle is arranged on one side of the support rod, and an infusion mechanism forming a gas-liquid pressure self-balancing system is arranged at the bottom end of the dosing bottle. The infusion mechanism comprises an injection head inserted into a bottle opening of the medicine feeding bottle, a first connecting block is arranged on the injection head, and an infusion tube is installed at the free end of the injection head in a communicating mode. Meanwhile, redundant liquid can be rapidly shunted and reflowed through the backflow pipe, the backflow pressure peak value can be effectively absorbed through a buffering bag supported by a honeycomb support in the flow slowing cavity, vortex can be avoided through a built-in flow guiding component and a flexible silica gel miniature flow limiting valve, and the problem of damage caused by too high pipeline pressure is solved to the maximum extent.

The utility model relates to filter cleaning technical field, the utility model discloses a kind of self-cleaning filter, including filter, mounting bracket, support leg and drain pipe, filter lower end outside surface and mounting bracket surface fixed connection, mounting bracket surface and support leg upper end fixed connection, filter lower end inner wall and drain pipe surface fixed connection, the utility model is connected by setting cleaning device and auxiliary mechanism, cleaning device is used to clean filter inner wall, auxiliary mechanism is used to assist cleaning process, when maintaining traditional filter, it is usually needed to stop and dismount and clean manually, this not only consumes manpower and time, also can interrupt production, reduce efficiency, in continuous production process, unplanned shutdown will lead to economic loss, frequent manual cleaning can also increase the risk of operator contacting chemical substances, and it is difficult to ensure that each time is thoroughly removed scale and impurities, affect the life and performance of filter.

The utility model relates to a kind of double-drive rotary drive bearing, including annular shell, inner tube, worm gear ring, worm, plugging mechanism, sealing ring and sealing limiting assembly;Worm gear ring is installed between annular shell and inner tube, worm is installed through horizontal cylinder and is engaged with worm gear ring, realizes rotary drive;Horizontal cylinder is equipped with oil injection hole, oil injection hole is blocked by sliding sealing sliding plate, sealing sliding plate and threaded rod, moving block, connecting rod linkage realize synchronous opening and closing;Sealing ring blocks gap, cooperates swing plate, peg, stop lever and nut and forms limiting compression structure.The structure solves the technical problems of insufficient torque of existing single drive, inconvenient oil injection and sealing installation, improves transmission stability, maintenance convenience and sealing reliability.

This invention discloses a test device and method for the seepage prevention performance of an integrated utility tunnel under a river, belonging to the field of integrated utility tunnel engineering testing technology. It includes a shell structure, inside which a test mechanism is installed. The test mechanism is used to support the test block. The test mechanism is fixedly connected inside the shell structure and is used for unified control. A sealing mechanism is installed inside the shell structure. This invention sets up a drive mechanism, a supply mechanism, and a sealing mechanism. The drive mechanism's servo motor drives a turntable to rotate, which in turn moves the piston rod and piston plate via a guide rod and balance plate, simultaneously providing power for the water and gas supply to the supply mechanism. The gas supply pipe of the supply mechanism promptly delivers gas to the sealing mechanism, causing the expansion bladder to inflate synchronously and achieve sealing. Water is supplied to the surface of the test block through a water supply pipe, a water circulation pipe, and a pressure testing pipe, forming a linkage system of drive, supply, and sealing.

The utility model relates to the technical field of submarine cable clamps, and discloses an offshore wind power submarine cable clamp device which comprises an upper clamp, a lower clamp is movably installed on the outer surface of the upper clamp, a flexible frame is movably installed between the upper clamp and the lower clamp, and an elastic plate is movably installed in the flexible frame. Threaded holes are formed in the upper clamp and the lower clamp, bolts are arranged in the threaded holes in a threaded mode, and balls are installed on the outer surfaces of the interiors of the upper clamp and the lower clamp. Compared with a traditional device, the device has the advantages that friction and jamming of the upper clamp and the lower clamp are reduced conveniently through cooperation of the flexible frame and the elastic plate, the flexible frame and the elastic plate have remarkable advantages in the aspect of coping with dynamic changes of the submarine cable by means of elasticity and deformation capacity of the flexible frame and the elastic plate, impact force can be buffered when the submarine cable vibrates, and the submarine cable is prevented from being damaged. Excessive wear caused by rigid contact between the clamp and the submarine cable is avoided, and the service life is prolonged; the submarine cable expands with heat and contracts with cold.

The utility model relates to the technical field of smoke outlet noise reduction flow guide covers, and discloses a wall-hanging stove smoke outlet noise reduction flow guide cover which comprises a shell, a fixing mechanism is installed at the bottom of the shell, the fixing mechanism is used for conveniently installing and disassembling a structure, a noise reduction mechanism is installed on the inner wall of the shell, and the noise reduction mechanism is used for reducing noise. The fixing mechanism comprises an air inlet flange, and the air inlet flange is fixedly connected to the bottom end of the shell. The fixing block slides to the top end along the sliding groove, so that the connecting pipe and the air inlet flange are spliced together, then the first clamping block and the second clamping block are placed in the first limiting groove and the second limiting groove, the buckle is rotated, the buckle is buckled on the clamping block, then the bolt is screwed in, the bolt enables the buckle, the clamping block and the installation block to be connected in series, and then the nut is screwed in to prevent looseness. The alignment accuracy is improved during installation, untight sealing is prevented, the whole body needs to be dismantled during cleaning, the operation is convenient during dismantling and maintenance, and the user cost is reduced.

The utility model relates to sensor technical field, and disclose a protective structure for array sensor, including bottom box, array sensor circuit board and top cover, the bottom box outer rim department fixed mounting has sealing assembly, the top cover is close to bottom box one end fixed mounting is connected with sealing assembly's connection frame no.