23results about How to "Avoid fracking" patented technology

The utility model belongs to the technical field of optical equipment, and particularly provides a lens bonding device which comprises a pitching adjusting assembly used for adjusting the pitching angle of a lens and a height adjusting assembly used for adjusting the height of the lens. The adjusting end of the pitching adjusting assembly is provided with a lens reference surface; one side of the lens datum plane is provided with a pressing assembly used for pressing the lens on the lens datum plane; the lens clamping area of the height adjusting assembly is located between the lens datum plane and the pressing assembly. According to the lens bonding device provided by the utility model, the lens height adjusting component is used for controlling the thickness of the glue layer, and the glue dispensing standardization can be realized by matching with the glue dispenser, so that the thickness of the glue layer meets the requirement, and the lens bonding device serves as a buffer layer in an extreme environment to prevent the lens base from deforming and fracturing the lens. In the curing process, angle drift of the lens is prevented through pre-compression, the precision of a finished product is improved, the lens bonding process standard is improved, and follow-up laser automatic production is achieved.

The utility model provides a plywood pressing device which comprises a machine frame, a placing table used for placing plates is arranged on the machine frame, and a pressing assembly used for gluing the plates placed on the placing table is arranged above the placing table and located on the machine frame. A plurality of elastic supporting assemblies used for supporting and limiting the pressing assembly are evenly distributed on the left side and the right side of the containing table. When the press-fit assembly conducts press-fit operation on plates, upward elastic supporting operation on the press-fit assembly is achieved through the elastic supporting assembly, plywood breakage caused by too large pressure in the press-fit process is avoided, unnecessary plate loss is avoided, the rejection rate is reduced, the press-fit efficiency is improved, and operation is simpler and more convenient.

The utility model discloses an annular ceramic heater forming device, which relates to the technical field of ceramic heater production equipment and is characterized in that an upper module can be driven to lift and rotate through a driving component, so that a semi-forming upper die, a clamp and a pressing die can be sequentially matched with a bottom die; according to the circular-ring-shaped ceramic heater forming device, the operations of semi-finished product pressing, heating coil placing, finished product pressing forming and the like are sequentially completed, and therefore the forming operation of a circular-ring-shaped ceramic heater is completed in a small space at a time. The forming device has the advantages of being small in occupied space, short in forming period, high in finished product quality and the like on the premise that production efficiency is considered, full-automatic annular ceramic heater forming operation can be achieved only by being matched with an existing automatic feeding and discharging mechanism, and popularization and improvement of the annular ceramic heater forming device are facilitated; and through the arrangement of the station point positions and the sensors, the accuracy of forming operation is improved, and therefore the product quality is improved.

The utility model belongs to a bridge expansion device, and particularly relates to a low-noise reinforced cantilever expansion device. Comprising a main body structure and a water stop structure, the main body structure comprises a first cantilever plate and a second cantilever plate which are oppositely anchored in concrete structures on the two sides of the expansion joint and matched in shape at the adjacent positions, and the water stop structure is arranged in the expansion joint; and the adjoining part of the first cantilever plate and the second cantilever plate adopts a broken line shape and / or a curve in the same plane. The utility model effectively solves the problems in the prior art that the edge beam profile steel is difficult to bend and form, and the forming size is difficult to control. The device has the advantages of simple and reliable structure, easiness in molding and manufacturing, low production cost, low failure rate, long service life and the like.

The invention relates to the technical field of salt cavern type compressed air energy storage banks, in particular to a dissoluble ball seat for salt cavern energy storage injection and production well packer setting, and aims to solve the problem that when a setting ball seat of an existing large-diameter injection and production pipe column is knocked off, the pipe column moves upwards. The ball seat comprises a ball seat body, a plugging piece and a connecting short section, the ball seat body is inserted into the connecting short section and connected with the connecting short section, and the plugging piece is arranged in the ball seat body to plug a channel of the ball seat body. The ball seat body and the plugging piece are both made of soluble materials, and after the packer is set, the ball seat body and the plugging piece are dissolved to achieve in-pipe drift diameter. After the plugging piece plugs the channel in the ball seat body, pressurization setting is conducted, then pressure is removed, the plugging piece and the ball seat body are dissolved in liquid in a well to achieve in-pipe drift diameter, pressure waves and tubular column radial springback caused by sudden pressure loss when the ball seat body and the plugging piece are knocked down due to continuous pressurization are avoided, and therefore the tubular column is prevented from moving upwards; and the normal work of the energy storage warehouse is ensured.

This invention discloses a novel electroplating method for integrated circuits, belonging to the field of semiconductor manufacturing technology. The method includes: Step 1: preparing a wafer and coating a positive photoresist layer on the wafer; Step 2: shielding the edge region of the positive photoresist layer using a shielding ring; Step 3: exposing the positive photoresist layer on the wafer, wherein the edge region is not exposed due to being shielded by the shielding ring; Step 4: developing the exposed positive photoresist layer to form a window structure on the positive photoresist layer on the wafer, while retaining the unexposed positive photoresist layer in the edge region, thereby forming a continuous region without windows in the edge region. This invention can improve the plating defects of positive photoresist at the wafer edge, enhance the quality and yield of bump fabrication and packaging, and can be applied to all bump fabrication and packaging fields.

The invention discloses a pressure stabilizing inflation valve and method, and belongs to the field of inflation valves. The inflation valve comprises a shell, an inflation port, an exhaust port, a control port, a valve element rod and a piston, wherein the inflation port, the exhaust port and the control port are located in the shell; a gas flowing cavity, a balance cavity and a control cavity are sequentially formed in the shell in the axial direction, the gas flowing cavity is communicated with the balance cavity through a convergence opening, and the balance cavity is communicated with the control cavity through a piston guide hole. The inflation port is communicated with the balance cavity, the exhaust port is communicated with the gas flowing cavity, and the control port is communicated with the control cavity; the end faces, facing the balance cavity, of the valve element rod and the piston are pressure-bearing faces, the area of the pressure-bearing face of the valve element rod is smaller than that of the pressure-bearing face of the piston, and when the inflation port injects high-pressure gas into the balance cavity, resultant force generated by the difference of the pressure-bearing faces of the valve element rod and the piston acts on the piston so as to guarantee that the inflation valve cannot be opened when the control port is in a non-working state. The problem that inflation of an existing inflation valve is not controlled is solved, and the accuracy of gas flow control is improved.

The utility model provides a film coating clamp and film coating disc with high clamping efficiency, which comprises a first clamping block, a second clamping block, two clamping screws and two springs, the first clamping block is provided with a plurality of mounting holes, the second clamping block is connected with the first clamping block and can move horizontally relative to the first clamping block, and the two clamping screws are connected with the second clamping block. A pressing block extending in the horizontal arrangement direction is arranged on the horizontal side portion of the second clamping block and moves towards the multiple side openings. First fixing holes are formed in the two ends of the first clamping block in the horizontal arrangement direction, second fixing holes are formed in the two ends of the second clamping block in the horizontal arrangement direction, and a clamping screw is connected between the first fixing hole and the second fixing hole on the same side. According to the scheme, a plurality of crystals located in the mounting holes can be pressed at the same time, then the crystals can be coated conveniently at the same time, fastening or loosening can be achieved only through the screws on the two sides, and therefore the coating efficiency is improved.

The utility model discloses a split combined type electromagnetic flowmeter, which relates to the technical field of electromagnetic flowmeters and comprises a first shell, the top of the first shell is connected with a second shell, and four supporting seats are fixed above the inside of the second shell and below the inside of the first shell. The tops of the four supporting seats and the bottoms of the other four supporting seats are connected with protective shells, and coils are installed in the two protective shells. Clamping frames penetrate through the outer surfaces and the backs of the first shell and the second shell, electrodes are connected to the interiors of the two clamping frames through sealing sheaths, and two clamping bolts penetrate through one sides of the two clamping frames. Through the arrangement of the first shell and the second shell, the split type structure of the first shell and the second shell is convenient for splitting the shell of the electromagnetic flow meter, so that the coil or the electrode in the electromagnetic flow meter can be independently replaced; maintenance and replacement are convenient, and waste is reduced.

This invention relates to a bidirectional protection device and method for lifting beams and wire ropes. The device includes at least one protection module, comprising an upper protection seat and a lower protection seat, which are fixedly connected by a plug-in mechanism. The upper protection seat has a rebar clearance groove; the lower protection seat has a connecting groove that connects to a wedge-shaped connecting plate and is equipped with the plug-in mechanism. The upper and lower arc-shaped rope support grooves together form a wrapping channel, which has an arc-shaped groove in which an arc-shaped slider is installed. Both the upper and lower protection seats have inner grooves containing elastic damping mechanisms. The inner walls of both the upper and lower protection seats are covered with a biomimetic damping protective layer. This invention converts tensile force into self-increasing clamping force through wedge self-locking, is adaptable to various types of precast concrete beams, is easy to assemble and disassemble, reusable, and equipped with standardized protection methods, significantly improving lifting safety and construction efficiency.

The utility model relates to the technical field of bathroom doors, in particular to an anti-bouncing bathroom door pulley which comprises a clamping assembly, a roller seat, a roller and a limiting cover plate, the roller is connected to the front end of the roller seat, the roller seat is connected to the clamping assembly, a sliding groove is formed in the upper portion of the roller seat, and the front end and the rear end of the sliding groove are open; the lower side of the limiting cover plate protrudes downwards to form a sliding strip, the sliding strip corresponds to the sliding groove, when the limiting cover plate completely slides into the sliding groove along the sliding strip, the front portion of the limiting cover plate is located above the rolling wheel, and the bottom face of the front portion of the limiting cover plate is higher than the top of the rolling wheel. By arranging the limiting cover plate, the upward bouncing height of the pulley can be limited, the pulley cannot jump out of the sliding rail, the front portion and the rear portion of the pulley of the anti-bouncing bathroom door can be connected more stably by arranging the sliding strip to be matched with the sliding groove, and the using stability and safety of the bathroom door are effectively improved; the technical problem that an existing bathroom door pulley is prone to disengaging from a sliding rail when bouncing upwards under external force is solved.

The utility model relates to the technical field of electric connector assembly, in particular to a press fitting device which can be used for press fitting of an electric connector. The pressing rod is arranged in the machine body in a sliding mode, the pressing head assembly is in transmission connection with the pressing rod, the buffering assembly is used for connecting the pressing rod and the pressing head assembly, the limiting assembly is at least connected with the pressing rod and used for limiting the relative position between the pressing rod and the machine body, and the pressing head assembly is used for exerting pressure on the electric connector. According to the press-fitting device, the applicability and the product consistency can be improved, and the electric connector is prevented from being fractured.

The present application belongs to the technical field of material mechanical property testing, in particular to a universal testing machine adaptive epoxy resin multi-specification sample clamping detection tool, which comprises a testing machine main body, a fixed integrated plate fixedly connected to the upper surface of the testing machine main body, a moving integrated plate slidingly connected to the outer surface of the guiding component of the testing machine main body, and a tool assembly arranged on the opposite side surface of the fixed integrated plate and the moving integrated plate. Each tool assembly comprises, from top to bottom, a standard connecting joint, a floating self-centering mechanism, a synchronous bidirectional clamping mechanism, and a replaceable composite jaw module. The universal testing machine adaptive epoxy resin multi-specification sample clamping detection tool sets a floating self-centering mechanism, adopts cross staggered guide grooves and four sets of floating blocks to cooperate, and is arranged in layers and orthogonally with an axial linear slide rail and a radial linear slide rail, realizes two-dimensional floating adjustment motion decoupling in the horizontal plane, and can provide sufficient rigid holding force through the disc spring set after centering.

The application discloses a sealing structure and a lead frame thereof. The sealing structure comprises an insulating substrate, a first base island located on a first surface of the insulating substrate, a second base island located on the first surface of the insulating substrate, a first power unit located on the first base island, a second diode located on the second base island, a plurality of pins, a plastic sealing body covering parts of the first base island, the second base island, the power unit, the second diode and the plurality of pins, the first base island and the second base island being arranged on left and right sides of the insulating substrate, the plurality of pins extending from a lower side of the plastic sealing body below the first base island and the second base island, a fourth pad located on the first surface of the insulating substrate, the fourth pad being independent of the first base island and the second base island, a support structure, a first end of the support structure being connected to the fourth pad, a second end of the support structure being connected to a side of the plastic sealing body, and the support structure being fixed to the side of the plastic sealing body to avoid the insulating substrate of the sealing structure being cracked.

The invention discloses a chip pickup device, and belongs to the technical field of chip packaging and manufacturing, a mounting rack of the chip pickup device is provided with a first mounting plate, and a rotation adjusting assembly comprises a rotation driving piece and an adapter piece; a rotating shaft of the rotating driving piece penetrates through the first mounting plate in the vertical direction; the adapter is connected with the rotating shaft; the balance buffer assembly comprises a second mounting plate, a third mounting plate, a guide unit and a first elastic piece; the third mounting plate is arranged between the second mounting plate and the horizontal part, and the first elastic piece abuts against the second mounting plate and the third mounting plate; the guide unit is arranged between the second mounting plate and the third mounting plate; and the pickup head assembly is mounted on the third mounting plate. According to the chip picking device provided by the invention, in the chip picking process, the gravity of the picking head assembly can be prevented from acting on the chip, so that the acting force borne by the chip in the picking process is reduced, the chip is adsorbed in a vacuum mode and synchronously ascends while the ejector pin jacks the film to ascend, and the jacking force on the chip in the jacking process of the ejector pin can be reduced.

The invention relates to the technical field of functional building materials, and discloses lightweight reinforced concrete for fabricated buildings and a preparation method. The lightweight reinforced concrete is prepared from the following raw material components in parts by weight: 320 to 340 parts of P.O 42.5 ordinary Portland cement, 100 to 120 parts of P.O 52.5 ordinary Portland cement, 30 to 50 parts of fly ash, 20 to 30 parts of silica fume, 5 to 10 parts of metakaolin, 200 to 220 parts of fine aggregate, 50 to 100 parts of fly ash floating beads, 600 to 700 parts of modified lightweight coarse aggregate, 5 to 7 parts of polycarboxylate superplasticizer, 15 to 20 parts of reinforced fiber and 145 to 160 parts of water. The surface of the modified light coarse aggregate is a two-layer modified interface, and comprises a first interface with an elastic function and a second interface with compactness, so that concrete is effectively prevented from being fractured; a firmer hydration product is formed by regulating and controlling the particle size grading of the Portland cement and matching the admixture, and the self-compaction property is better, so that the compression resistance and fracture resistance of the concrete are enhanced; the early strength of the concrete is improved, and the form removal period of the prefabricated building precast concrete member is shortened.

The present application relates to the technical field of screw assembly, in particular to an assembling process of a composite gasket for a drill end screw, which comprises the following steps: the drill end screw, the metal gasket and the rubber gasket are supported by the multi-layer composite frame and slide, and are intercepted and stopped by the blocking mechanism on the stamping section; the rubber gasket is contacted with the metal gasket by the pressing cylinder of the stamping mechanism, and then passes through the space surrounded by the pressing pieces; the metal gasket is extruded to wrap the outer side of the rubber gasket, forming the composite gasket; the composite gasket is sleeved into the top section of the drill end screw and assembled by the continuous rising of the pressing cylinder; finally, the servo motor is started in delay to drive the rotating of the pushing block and the forward movement of the drill end screw on the stamping section, and the drill end screw slides out of the composite frame and is collected.

The utility model discloses an accurate guiding anti-crush punching die, which comprises an unloading bottom plate, a lower die positioning block and a side edge positioning block, the unloading bottom plate is provided with an unloading hole, the lower die positioning block is provided with a through hole, the lower die positioning block is fixed on the unloading bottom plate and is used for positioning a main body of a product, and the through hole is communicated with the unloading hole; the side edge positioning blocks are arranged on the side edge of the discharging bottom plate and used for positioning the handle end of a product, the number of the side edge positioning blocks is two, arc-shaped grooves are formed in the side edge positioning blocks, and the two arc-shaped grooves clamp and position the handle end of the product. The positioning device is accurate in positioning, reduces the bad conditions of product crushing, fracturing and the like, and improves the production efficiency.

The present invention relates to the technical field of functional building materials, and discloses a lightweight reinforced concrete for prefabricated buildings and a preparation method thereof. The lightweight reinforced concrete comprises the following raw material components by weight: 320-340 parts of PO 42.5 ordinary Portland cement, PO 52.5 100-120 parts of ordinary Portland cement, 30-50 parts of fly ash, 20-30 parts of silica fume, 5-10 parts of metakaolin, 200-220 parts of fine aggregate, 50-100 parts of fly ash floating beads, 600-700 parts of modified lightweight coarse aggregate, 5-7 parts of polycarboxylic acid high-efficiency water reducer, 15-20 parts of reinforcing fiber, and 145-160 parts of water; the surface of the modified lightweight coarse aggregate is a two-layer modified interface, including a first interface with elastic function and a second interface with compactness, which effectively prevents the concrete from being crushed; through the control of the particle size grading of Portland cement and the combination of admixtures, a stronger hydration product is formed with better self-compactness, thereby enhancing the compression and flexural properties of the concrete; the early strength of the concrete is improved, and the demolding cycle of prefabricated concrete components of prefabricated buildings is shortened.

The utility model discloses glass cup body polishing equipment which comprises an operation table and a supporting frame, a polishing assembly is arranged on the inner side of the supporting frame, a positioning assembly is arranged on the lower side in the supporting frame, and a dust collection assembly is arranged on the rear side of the upper end face of the operation table. A low-speed motor can drive clamping heads on the left side and the right side to synchronously move towards the inner side through a double-threaded rod, a movable plate and a linkage rod so as to clamp and fix a glass cup to be polished, and in the process, a second baffle ring installed on the annular side face of a limiting rod can stop and limit the inwards-moving movable plate; by starting a dust collection fan, most of glass dust in the front can be sucked by the dust collection fan through a through cavity and blown into a dust removal filter bag through a connecting pipe to be filtered, so that the glass to be polished can be cleaned; and therefore, the situation that glass dust generated in the grinding and polishing process cannot be treated in time and hurt the breathing health of surrounding workers is avoided.

The utility model discloses an easy-to-maintain test burn-in board female seat structure, which structurally comprises a board to be tested and a burn-in test plugboard, a pin is fixedly arranged at the upper part of the board to be tested, a jack is arranged at the lower part of the burn-in test plugboard, the pin and the jack are in sliding embedded connection, and the easy-to-maintain test burn-in board female seat structure further comprises a clamping fixing mechanism and a stable supporting mechanism, the clamping and fixing mechanism is fixedly connected with the aging test plugboard, the clamping and fixing mechanism is movably connected with a to-be-tested plate, the clamping and fixing mechanism comprises a bottom plate, a guide column, a connecting block and a top plate, the lower end of the guide column is fixedly connected with the bottom plate, and the upper end of the guide column is slidably connected with the connecting block and penetrates through the connecting block; the top plate is rotatably connected with the connecting block through a hinge, the aging test plugboard is fixedly connected with the middle part of the top plate, the stable supporting mechanism is arranged at the upper part of the bottom plate, and the top plate is movably connected with the upper part of the stable supporting mechanism. The utility model belongs to the field of burn-in test boards, and particularly relates to an easy-to-maintain female seat structure for testing a burn-in board.

The present invention relates to the technical field of vehicle intercooling system, and discloses an intercooler air chamber and main plate pressing tool, including a fixed base plate and an air chamber aluminum mold. The air chamber aluminum mold is a hollow structure, and each of the four corners of the air chamber aluminum film is provided with a guide column mounting hole for mounting a guide column. The top of the guide column is fixedly mounted on an adapter plate, and the adapter plate is mounted on the lower surface of the fixed base plate by bolts. The fixed base plate is connected to a movable cylinder for driving it to move up and down. When the fixed base plate drives the air chamber aluminum mold to move to the lowest position under the drive of the movable cylinder, the lower edge of the air chamber aluminum mold abuts against a supporting platform provided at the peripheral edge of the lower part of the intercooler air chamber. The present invention also discloses a pressing method of the intercooler air chamber and main plate pressing tool. The intercooler air chamber and main plate pressing tool and the pressing method of the present invention can make the sealing surface of the intercooler air chamber be under balanced pressure, ensure the uniform compression of the sealing gasket, and greatly reduce the adjustment time.