42results about How to "Seal reached" patented technology

The invention relates to a self-compensating fastening large-caliber fast adaptor which is used for butt jointing of two pipes and solves the defects of high cost and poor practicability in the prior art. The invention is characterized in that: the outer circumference of pipe fittings is encircled by a rubber sealing boot 2, a convex ring of which is arranged among the pipe fittings. Left and right sleeves 3 and 4 are respectively sheathed on the pipe fittings, and pressed on the outer surface of the rubber sealing boot 2. A trough 9 of the left sleeve 3 is meshed with a projection 12 of the right sleeve 4. A cotter pin 8 fixedly locks the left and right sleeves 3 and 4. A claw 5 is provided with a pointed teeth on the concave surface, arranged in dovetail inner cone troughs 11 and 14 in the left and right sleeves 3 and 4, pasted on the outer wall of the pipe fittings, can slide along the axial direction of the pipe fittings and concentrically contract to occlude and tighten the pipe fittings. The fast adaptor is high, middle and low pressure resistant. The self-compensating fastening omni-directional secure seal with firm soft syncretic is provided without welding or flange type, not being opened with trench type, and not being provided with a compensator additionally, thereby saving labor and time, especially under the condition of severe environment, the fast adaptor of the invention has the advantages of being convenient and fast, low cost, energy saving and environmental protection. The fast adaptor of the invention is used for connecting two pipes through which the fluid is to be conveyed.

The invention discloses a separable sealing structure of a dragline anchor. The separable sealing structure comprises a sealing structure at an anchor head end and a sealing structure in an anchor head, wherein the sealing structure at the anchor head end comprises an anchor plate, a base plate and an O-shaped sealing ring I arranged on the base plate; the sealing structure in the anchor head comprises a sealing cylinder, a pressing plate, an inner sealing plate, a pressure-bearing cushion cover, an O-shaped sealing ring II, a sealing cushion cover and an outer sealing plate; the pressing plate, the inner sealing plate, the pressure-bearing cushion cover, the O-shaped sealing ring II, the sealing cushion cover and the outer sealing plate are sequentially arranged in the sealing cylinder; a connecting piece comprises a pressing rod, a pressing screw and a tightening screw; the pressing rod penetrates through a through hole II in the anchor plate and a straight-through hole II of the pressing plate, directly reaches a blind hole I of the inner sealing plate and clamps the pressing plate around a shoulder; the pressing screw is tightly attached to the pressing rod for ejecting the pressing rod; the pressing rod ejects the pressing plate; one end of the pressure-bearing cushion cover is tightly attached to the pressing plate and is ejected; the other end of the pressure-bearing cushion cover is tightly attached to the sealing cushion cover and extrudes the sealing cushion cover. The separable sealing structure of the dragline anchor is reliable in sealing; the disassembly and the assembly for multiple times can be realized; the maintenance and the operation are easily realized; meanwhile, steel stranded wires can be singly changed.

The invention discloses a lead frame cleaning mechanism, and particularly relates to the technical field of semiconductors. The lead frame cleaning mechanism comprises a box, an adapter tube and a hinge. A water pipe mounting hole is formed in the top surface of the box, a box door is movably mounted on the side surface of the box through the hinge, a sealing ring is fixedly mounted on the side surface of the box door, an observation window is formed in the side surface of the box door, a partition plate is fixedly mounted in an inner cavity of the box, a fixed bottom rod is fixedly mounted on the top face of the partition plate, a locking device is fixedly mounted on the side face of the fixed bottom rod, and a fixed top rod is fixedly mounted on the top of the fixed bottom rod through the hinge. By arranging the bottom of the box to be gradually lowered from left to right, when cleaning liquid on the upper part is scattered at the bottom of the inner cavity of the box, the cleaning liquid can be completely discharged by arranging the bottom of the box, the situation that the equipment cannot work normally due to accumulation of the cleaning liquid is avoided, and the practicability of the equipment is improved.

The invention provides a polyethylene pipe fast connector and belongs to the technical field of pipeline connection. The polyethylene pipe fast connector is composed of an iron outer pipe, a rubber inner container and screws. The rubber inner container is arranged inside the iron outer pipe. The wall of the iron outer pipe is provided with threaded through holes corresponding to the screws. The screws are screwed on the iron outer pipe through the threaded through holes. Three rows of the screws evenly arranged in a triangular mode are screwed around the wall of the iron outer pipe. The screws in each row are six in number. The polyethylene pipe fast connector is reasonable and simple in structure, easy to produce and manufacture, and convenient to use. When being used for connecting polyethylene pipes, the polyethylene pipe fast connector is sleeved to the end portions of two connected pipelines, the screws are evenly screwed and penetrate through the iron outer pipe to extrude the rubber inner container so that the rubber inner container can make close contact with a PE pipe, and the compressed inner container enables the pipeline seal openings to be sealed. Accordingly, the polyethylene pipe fast connector ensures the strength of connection, and is simple to operate, pollution-free, and free from influence of sites and environmental factors. After the screws are unscrewed, the pipe connector can be reused and is economical and environment-friendly.

The invention discloses a double-seal high-pressure polished rod sealing device, and belongs to the technical field of polished rod sealing devices. The double-seal high-pressure polished rod sealingdevice comprises a sealing shell. A groove is formed in the side, which is close to a polished rod, of the sealing shell, an upper sealing ring, an upper spacer, an upper movable block, a lower movable block, a lower spacer and a lower sealing ring are sequentially mounted in the groove from top to bottom, mounting balls are mounted on the side, which is close to the polished rod, of each of the upper movable block and the lower movable block, oblique planes are arranged on the adjacent surfaces of the upper movable block and the lower movable block, a triangular notch is formed between the upper movable block and the lower movable block, an ejecting block is slidably arranged in the triangular notch, a threaded hole is formed in the sealing shell, and a threaded rod is mounted in the threaded hole. The double-seal high-pressure polished rod sealing device has the advantages that the upper movable block and the lower movable block can move towards two sides of the double-seal high-pressure polished rod sealing device, accordingly, the upper sealing ring and the lower sealing ring can be squeezed, can be expanded towards the horizontal directions and can sufficiently cling to the outer wall of the polished rod, accordingly, the sealing purpose can be achieved, and sealing effects can be improved.

The invention is suitable for the field of sealing technologies and provides a guide line sealing connector. The guide line sealing connector comprises a plastic connector body. The center of the plastic connector body is provided with a through hole for a guide line to penetrate through, the plastic connector body is provided with a protruded screwing portion, an inner end portion and an outer end portion, the periphery of the inner end portion and the periphery of the outer end portion are provided with outer threads, a seal ring is sleeved on the inner end portion, the annular end face of the outer end portion and the outer end portion are integrally provided with a sawtooth structure consisting of a plurality of sawteeth, the root portions of the sawteeth are larger than the tip portions, the portions from the root portions to the tip portions are streamline-shaped, and the sawtooth structure is provided with a guide line sealing part in a surrounding mode. The guide line sealing connector further comprises a plastic nut provided with a hollow cavity and capable of being screwed at the outer end portion. By means of technical improvement, the guide line sealing connector fully utilizes the elasticity of structural parts and plastic to achieve the sealing effect, is easy to assemble, high in sealing reliability and low in cost.

The invention discloses an assembling device with a sealing function. The assembling device comprises a first separating body, a second separating body and a gasket, wherein the first separating body is provided with a first surface, the second separating body is provided with a second surface, the gasket is provided with a convex rib, the convex rib is in contact with the first surface and the second surface, at least one side of the convex rib is provided with a branch groove in a protruding way, at least one end of an elastic body which is fixedly arranged on the convex rib is embedded in the branch groove, and the elastic body is simultaneously in contact with the first separating body and the second separating body. Compared with the design of a traditional gasket, due to the additional arrangement of a glue groove and the elastic body, the sealing problem in a height difference can be completely solved, complete sealing can be achieved, and the sealing reliability can be increased; the gasket has a better adaptability on the height difference, the processing accuracy of a flange surface can be reduced, thus the processing efficiency is increased, and the cost is saved.

The invention provides a dynamic sealing device which comprises a dynamic sealing gasket prepared by No.304 stainless steel material, a lining ring and a supporting ring, wherein the dynamic sealing gasket is a thin circular ring sheet, an elastic part is arranged on the dynamic sealing gasket, the elastic part can lead the dynamic sealing gasket to be always in tight bonding with the lining ringthrough the elastic force, the lining ring and the supporting ring are connected through a fastener, and the supporting ring is connected and arranged on a frame through a revolution surface.

The invention discloses a large-caliber high-pressure low-torque ball valve which comprises a graphite ring, a valve seat, a ball body, a valve body, a lower bearing, a packing box, a receiving disc,a valve rod, a turbine head, a turbine, a turbine cover and a locking device. A fixing seat is fixed to an inner ring of the graphite ring, a spring is fixed to the left side of the valve seat, self-lubricating layers are fixed to the top and bottom of the ball body, sliding ways are formed in the periphery of the interior of the valve body, the top end of the lower bearing penetrates through thebottom of the valve body and is fixedly connected with a shaft seat at the bottom of the ball body, the packing box is installed at the top end of the valve body, the receiving disc penetrates throughthe packing box through a fixing nut, the bottom of the valve rod penetrates through the receiving disc and the packing box and extends into the valve body, and a connecting groove is formed in the left side of the turbine head. The large-caliber high-pressure low-torque ball valve is provided with a filter screen, impurities entering water in the valve body are filtered through the filter screen, and the situation that the precision of the whole surface of the ball body is affected due to the fact that the impurities in the water are left between the valve body and the ball body to scratch the ball body is avoided.

The invention provides a sealing connection structure and a connector using the same. The sealing connection structure comprises a fixing base body and a flexible sealing sleeve; the fixing base body is provided with a sealing connection surface for connecting the flexible sealing sleeve; the flexible sealing sleeve is connected onto the sealing connection surface through a connecting component and an annular pressing plate; and the outer edge/or inner edge of the annular pressing plate is provided with a limiting structure which is used for limiting the compression deformation quantity of the flexible sealing sleeve and extends towards the sealing connection surface. According to the sealing connection structure of the invention, the flexible sealing sleeve is connected onto the sealing connection surface of the fixing base body through the connecting component and the annular pressing plate. Compared with a mode that a sealing adhesive sleeve is connected with a mounting plate through the deformation of the sealing adhesive sleeve itself, the connecting mode adopted by the sealing connection structure can realize high connection strength and will not cause connection failure; and the limiting structure can limit the compression deformation quantity of the flexible sealing sleeve, and therefore, the sealing adhesive sleeve can be prevented from being excessively compressed, so that the deformation of the sealing adhesive sleeve will not exceed deformation limit, and therefore, the sealing adhesive sleeve will not lose elasticity, and a sealing effect can be ensured.

The invention relates to a constant-temperature drinking device which comprises an inner cavity, an outer cavity, a function cavity and a covering device. The overall structure is improved, and therefore sealing performance is guaranteed. A heating component and heat conduction liquid are arranged, and therefore drinking water in the drinking device can keep drinking temperature constantly, and even though hot water is poured into the drinking device, the hot water can be cooled to the drinking temperature within a short time; the water can be directly drunk when drunk at any time by setting the drinking temperature; and the drunk water is not unboiled water and boiled water, and the aims of constant-temperature drinking and drinking at any time are really achieved.

The invention discloses composite plastic woven bag manufacturing and processing equipment and method, and belongs to the technical field of woven bag processing equipment. The composite plastic woven bag manufacturing and processing equipment comprises a manufacturing and processing equipment body, a woven bag rolling shaft, supporting and fixing tables, main body supporting columns and a rotating mechanism, wherein the supporting and fixing tables are fixedly installed on the left side and the right side of the top of the manufacturing and processing equipment body; the rotating mechanism is movably installed at the top of the supporting and fixing tables, the woven bag rolling shaft is movably installed on the inner side of the rotating mechanism, and the main body supporting columns are fixedly installed on the left side and the right side of the manufacturing and processing equipment body. According to the composite plastic woven bag manufacturing and processing equipment and method, the design is ingenious, a woven bag flattening shaft and a woven bag flattening device are combined, and the problem that in the using process of existing manufacturing and processing equipment, some parts of a woven bag can be folded, and the folded parts of the woven bag cannot be flattened is conveniently solved. Through the structural combination, the device can flatten the folded part of the woven bag, so that the woven bag is better operated in subsequent processing.

The invention relates to a door with a rotatably mounted door leaf, which may be operated by a floor door closer, arranged below the door, whereby the door leaf is embodied with at least two parallel glass panes, a peripheral spacer between the glass panes and a support element arranged between the glass panes in the lower region of the door leaf. According to the invention, such a door may be improved, in particular with regard to the pivot mounting thereof, whereby the support element between the glass panes may be connected to a support, lying on the outside of the glass panes, which may engage with a drive axle of the floor door closer, outside the plane of the door.

The invention discloses a sleeve type fixed dust removal device which comprises an elastic rubber plate arranged between two brake pad actuators. A water spraying mechanism is fixedly connected at theupper end of the elastic rubber plate and comprises a closed water tank, a water separator is arranged on the outer surface of the closed water tank, a water flow outlet of the water separator is connected with a sprayer, a connecting pipe is arranged between the sprayer and the closed water tank, a plurality of annularly distributed projections are arranged on the inner side face of one end, connected with the sprayer, of the connecting pipe, a sealing gasket is arranged on the outer surface of each projection, an annular sliding groove is formed in the outer circumference of one end, connected with the sprayer, of the connecting pipe, a sleeve externally sleeves the connecting pipe, the inner side face of one end of the sleeve projects inwards to form an annular slider, an annular sealing ring is adhered on the inner side wall of the other end of the sleeve, an annular groove is formed in the outer circumference of the other end of the sleeve, and a locking bolt is arranged in the annular groove and connected with the annular groove in a threaded manner. Multiple sealing functions and emergency usage can be realized.

The invention provides an oil seal device for a digital PCR chip, which comprises a substrate, wherein the substrate is made of an aluminum material, a groove is formed in the middle part of the substrate, the groove is used as a container for placing a reaction chip, an upper cover is arranged on the groove, the upper cover slides relative to the substrate to seal a chip, and paraffin oil with athickness of 0.3-0.5 mm is used as an oil seal structure at the position, corresponding to the chip, of the upper cover; a plurality of springs are arranged at the upper end of the inner side wall ofthe groove, one end of each spring is connected with the upper cover, and the side face of the groove in the upper side of the upper cover after the upper cover is buckled is an oil sealing face. By means of full-closed and semi-automatic operation, the manual operation process is reduced, and therefore errors caused by manual operation can be reduced to the maximum extent; a good heat-conductingmedium is selected, so that the heat conductivity of the device as a reaction chip container is fully guaranteed, and the stability of reaction conditions is fully guaranteed; the upper cover surfaceis made of the materials and of a structure that can fully guarantee later result detection effectiveness.