84results about How to "Tight and reliable" patented technology

The invention discloses an umbrella-holding type pipeline tensioning mechanism which comprises a middle shaft (1) and two movable blocks (2) sleeved on the middle shaft, wherein a locking device (3) fixed with the middle shaft is arranged on the movable blocks (2), and at least three groups of tensioning connection rods (4) for supporting the inner wall of a pipeline are arranged between the two movable blocks. By means of the technical scheme, the tensioning connection rods for supporting the inner wall of the pipeline are evenly distributed between the two movable blocks with the axis of the middle shaft serving as the standard, sprigging and falling of the tensioning connection rods are driven along with moving of the movable blocks, and adjusting is performed according to the inner diameter of the pipeline. The umbrella-holding type pipeline tensioning mechanism is convenient to adjust, can adapt to operation of pipelines of different diameters, saves the cost of tensioning tooling, fully uses the tensioning tooling and is firm in tensioning and simple in structure.

This invention refers to a teatcup liner and a teatcup. The liner (1) is mounted in a shell (2) of the teatcup and defines an inner space (3) for receiving a teat. The liner includes a primary component (12) forming a barrel. The primary component includes a peripheral portion (15), a primary connecting ring (16) and a lip (17) defining an opening (4). The secondary component includes a secondary peripheral portion (18) and a secondary connecting ring (20). The primary component is connectable to the secondary component for releasing the liner by a mutual engagement of the connecting rings. At least one of the connecting rings abuts the peripheral portion of the other component to form a sealing abutment between the two components.

The invention discloses a hydraulic packer and a mounting method of the hydraulic packer. The hydraulic packer and the mounting method of the hydraulic packer are used for downhole oil production by layer and the like. The hydraulic packer comprises a releasing mechanism, a rubber barrel sealing mechanism, an anchoring mechanism, a setting mechanism and the like. The anchoring mechanism comprises an upper cone, a lower cone, a slip, a reset spring and a slip cage, the upper end of a T-shaped sleeve of the lower cone is connected with a conical head, the T-shaped sleeve is sleeved with a compression sleeve, matched steps are arranged between the compression sleeve and the T-shaped sleeve, the compression sleeve can axially slide along the outer side of the T-shaped sleeve, and an expansion spring is arranged between the compression sleeve and the conical head and on the outer periphery of the T-shaped sleeve. The releasing mechanism is arranged on the upper portion of the hydraulic packer and comprises an upper connector, a releasing sleeve, a fishing barrel, a releasing piston, a ball seat, a ball and the like. After setting of the packer is completed, releasing can be achieved by throwing the ball and can be achieved by rotating a pipe column in the forward direction. Due to the fact that the expansion spring is arranged on the lower cone, the conical head can reliably expand the slip due to the thrust of the expansion spring. Meanwhile, due to the design of the releasing mechanism, the problem that the lower tensile force borne by the packer is insufficient is solved.

The invention discloses a degradable iron, zinc and magnesium-based gradient composite material based on biological bone healing. A zinc layer and an iron layer are sequentially arranged on the surface of a magnesium matrix, and the thickness or the diameter of the magnesium matrix is 30-90% of bone dimension in the repaired part. The thicknesses of the zinc and iron layers are respectively determined according to the corrosion rates of zinc and iron in an in vitro simulated body fluid. According to the composite material, rigid fixation in early stage is realized to promote bone healing, the composite material is gradually degraded, use of the material with lower rigidity is transited to dynamic fixation, and finally, the material is fully absorbed in vivo to prevent from being taken out in the second operation. Rapid degradation in the non-mechanical bearing later stage is realized, and growth by differentiation of bone cells and ingrowth of blood vessels on the surface of material are induced by hoping to combine the advantages that iron in higher rigidity in the early stage realizes rigid fixation and zinc in lower rigidity in the middle stage realizes dynamic fixation by means of quicker corrosion rate of magnesium. Finally, the composite material is fully absorbed, so as to realize the bone repairing purpose. The composite material disclosed by the invention is applicable to gradient structure designs of internal fixing materials after fracture with change demands on mechanical property with the passage of time.

The invention discloses a heavy type plate feeder, and belongs to the technical field of mining machines. The heavy type plate feeder comprises a base, cross beams, caterpillar track guide wheel seats, caterpillar track guide wheels, a raw mineral material conveying mechanism and a caterpillar track wheel shaft. The raw mineral material conveying mechanism comprises a pair of caterpillar track plate traction chains and a set of caterpillar track plates, a pair of caterpillar track wheels is sleeved with the caterpillar track plate traction chains, and a caterpillar track tensioning mechanism is arranged at the right end of the base. The heavy type plate feeder is characterized in that every two cross beams arranged on the upper portion of the base are adopted as a group, cross beam limiting frames are fixed to the base, a shock pad barrier strip and shock pads are further arranged on the base, the two ends of each cross beam are arranged on the shock pads, and shock pad blocking and protecting mechanisms are fixed to the positions corresponding to the shock pads. The caterpillar track tensioning mechanism comprises a support cross beam, a first support cross beam longitudinal arm, a second support cross beam longitudinal arm, an adjusting screw rod, a spring and an adjusting nut. The heavy type plate feeder is beneficial for protecting the raw mineral material conveying mechanism, the cross beams and the base against impact failures, and a caterpillar track wheel bearing pedestal can be reliably tensioned and located at the adjusted position.

The invention relates to the technical field of water treatment and particularly discloses a catalytic ozonation catalyst as well as a preparation method and application thereof. The catalytic ozonation catalyst comprises a carrier, an active component and an auxiliary agent. The carrier is gamma-Al2O3, the active component is an oxide of Co and one or more of oxides of Mn, Ce, Cu, Ni and Fe, and the auxiliary agent is an oxide of Ca. The invention also provides a preparation method of the catalyst. Compared with a catalyst prepared by directly impregnating an active component in a traditional carrier, the catalyst provided by the invention has the advantages of tight combination of the carrier and the active component, difficult loss of the active component, high catalytic activity, stable catalytic performance, long service life and the like. The method is suitable for treating industrial wastewater with high CODcr concentration and complex organic matter composition.

The invention discloses an electronic cigarette, a sheet heating body of the electronic cigarette and a preparation method of the sheet heating body. The preparation method comprises the steps that ceramic slurry is prepared and subjected to casting to form a plurality of membranes; a part of the membranes are punched; electrodes are printed on first sides of the punched membranes; heating circuits and temperature measuring circuits are printed on second sides of the membranes where the electrodes are printed, and the heating circuits and the temperature measuring circuits are connected with the electrodes through holes formed in the membranes; the second sides of the membranes where the heating circuits and the temperature measuring circuits are printed are stacked on the non-punched membranes for lamination, and a sheet green body is formed; the sheet green body is sintered to obtain the sheet heating body of the electronic cigarette. According to the electronic cigarette, the sheetheating body of the electronic cigarette and the preparation method of the sheet heating body, the heating circuits and the temperature measuring circuits are sintered together with ceramic, so that the temperature of the heating body is uniformly distributed, and a temperature measuring area is reasonable and accurate.

The invention discloses a construction technology of a waterproof air-permeable bare-concrete-simulation coating. The technology is characterized by comprising the following steps of (1) base face treatment, wherein after gaps, cracks and sunken parts are subjected to filling-up and ground to be flat, an anti-crank grid fabric is hung on the base face, and then a putty layer is constructed; (2) priming paint construction; (3) construction of a color different adjustment material, wherein a color modification agent B is dipped, flap and knurling are conducted on the base face with completely-dried priming paint, and one-time completion is achieved; then, a color modification agent C is dipped, flap and knurling continue, and two-time completion is achieved; finally, a color modification agent A is dipped, flap and knurling continue, and one-time completion is achieved; (4) finish paint construction; (5) construction of a top facing agent. According to the construction technology, commonconcrete is directly used as a processing base material, modification is conducted on the surface of the common concrete, the production cost is greatly reduced, the defects of the base face are repaired by constructing the putty layer, the whole base face is completely covered with putty and is in an even and uniform state, and accordingly the base material is tightly and reliably combined withthe coating.

The invention provides a gear shifting mechanism in the vehicle transmission technical field, consisting of an input shaft welding-on part, an advancing gear piston, an advancing gear cylinder, a backing gear piston, a backing gear cylinder, a recovery spring, a composite spring, and an advancing gear clutch steel sheet, a friction sheet, a backing gear clutch steel sheet, a friction sheet, a planetary mechanism component and a sun wheel welding-on part which are sequentially overlapped. The steel sheet of the advancing gear clutch and the planetary frame are respectively connected with the input shaft by a spline; the friction sheet is connected with the sun wheel welding-on part by the spline; the steel sheet of the backing gear clutch is connected with a stepless transmission shell by the spline; and the friction sheet is connected with a sun wheel gear ring by the spline. The gear shifting mechanism has the advantages of compact structure, low cost, high transmission efficiency, reliability and stability.

The invention discloses an assembling structure of a lamp holder and a bulb. The assembling structure comprises a casing. The bulb is installed on the casing. A pair of binding posts are fixed to thetop of the casing. A circuit board is arranged inside the casing and further located above the bulb. Conductive contacts are fixed to the upper end face of the circuit board. Elastic conductive needles are fixed to the lower end face of the circuit board. A driving structure is installed on the casing. Bosses are arranged on the outer walls of the two sides of the bulb. Sliding chutes capable of allowing the bosses to slide in are arranged on the inner side wall of the casing. Mounting cavities communicating with the corresponding sliding chutes are formed in the casing and located in the outer sides of the sliding chutes. Rotating blocks are connected into the corresponding mounting cavities in a rotatable mode. Lugs are arranged on the outer side walls of the rotating blocks. Torsional springs are arranged outside rotating shafts in a sleeving mode and further located at the front sides and the rear sides of the rotating blocks, and protruding edges are arranged on the outer side walls of the rotating blocks. Turning handles are arranged on the side walls, facing the outer sides, of the rotating blocks. When the bulb is replaced, electric shock accidents can be effectively avoided. Moreover, screwing of the bulb is not required, and thus convenience can be brought about to replacement of the bulb.

The invention relates to a kind of polarity-changing plasma conical circular seam welding equipment and its welding method. The welding equipment includes a cone section welding tool, a rotary positioner, a positioning plate and a welding operation frame system. The cone section welding tool includes an upper cover plate , upper cone tire, first upper pressure ring, first lower pressure ring, second upper pressure ring, second lower pressure ring, column, pull / strut assembly, coaxial positioning block, inner support assembly and chassis base, The equipment uses a set of cone tire fixtures to complete the plasma assembly, machining and welding of circular seams with two diameters and two cone angles. The carcass can be accurately positioned in the circumferential direction of the welding workpiece through the circumferential positioning device; Through the positioning surface designed on the cone tire and the axial fine-tuning screw, the axial positioning of the welding workpiece is completed, and the vertical assembly and horizontal welding method is adopted to solve the pre-weld assembly, machining, and welding problems of the large-diameter cone section cylinder. , and can obtain higher assembly efficiency and assembly and machining accuracy, thereby obtaining higher post-weld quality.

The invention provides an engagement fixture for square steel blade milling, and can solve the problems of long blade manufacturing period and high machining difficulty easily caused by positioning and clamping blades by a traditional engagement fixture. The engagement fixture for square steel blade milling comprises a turntable, and is characterized by further comprising an engagement clamping mechanism and a floating tip mechanism; the engagement clamping mechanism includes two engagement blocks and a lead screw translation structure; the lead screw translation mechanism is mounted on the turntable; the floating tip mechanism is arranged in the center position of the lead screw translation mechanism; and the two engagement blocks are respectively mounted on the lead screw translation mechanism, are positioned on two sides of the floating tip mechanism, and can oppositely or reversely move along the lead screw translation mechanism.

The invention discloses an assembly method and light adjusting method of a modular LED lamp. The assembly method of the modular LED lamp comprises the following steps of: step 1, assembling an LED illumination module: inserting a lamp panel in a shell insertion slot in a shell in the manner that the slope of the lamp panel faces forwards to enable stationary contacts on the lamp panel to be in contact with elastic contacts in the shell insertion slot, and connecting an end cap to the end of the shell in an inserting manner to seal the outer end of the lamp panel to complete the assembly of the LED illumination module; and step 2: connecting a base with the LED illumination module through a supporting rod. The assembly method and the light adjusting method of a modular LED lamp are easy to implement, and convenient for light adjustment.

The invention discloses a machining and positioning combination fixture for a thin-walled part with a threaded hole. The machining and positioning combination fixture comprises a fixture body and a swelling body. The fixture body is composed of a limiting end head and a clamping rod of a hollow structure. An external thread matched with the threaded hole of the thin-walled part is arranged on theouter circle surface of the clamping rod, and an internal thread is arranged on an inner hole of the clamping rod. The clamping rod is further provided with a cut groove. The swelling body is composedof a pulling and twisting end head and a swelling core. An external thread matched with the internal thread of the clamping rod is arranged on the outer surface of the swelling core. The swelling body is connected into the fixture body in a sleeved mode through the threads. During installation, the thin-walled part is penetrated into the clamping rod of the fixture body, then the swelling core ofthe swelling body is twisted into the inner threaded hole of the clamping rod, the clamping rod can be swelled along the cut groove in the twisting-in process, and thus swelling fixation is realized.The structure is simple, manufacturing cost is low, installation is convenient, fast, firm and reliable, and meanwhile the threads cannot be damaged by jamming; and moreover, installation coaxialityis high, and the machining precision and coaxiality of the part are effectively improved.

A pipe fitting for connecting at least two pipes, the pipe fitting (1) comprising at least two layers. An innermost layer (2) and an outer layer (3) are of different materials. The innermost layer (2), which gets into contact the liquid to be conveyed, is made of plastic tolerating high temperatures. The outer layer (3) is formed of such materials that the outer surface is arranged to function as the provider of oxygen diffusion protection and / or the UV protector.

The invention belongs to the field of food processing, and in particular to a nutritional freeze-dried deep-sea fish porridge and a preparation method thereof. The invention the combines the Spanish mackerel with porridge, greatly improves the nutrition of instant food, and enriches the demand of people for nutritious instant food. The invention adopts the vacuum freeze-drying technology; the water in the raw materials of deep-sea fish porridge is directly sublimated to gas without liquidation, and the nutritional values of the raw materials are retained to the maximum level; the deep-sea fish porridge block is brewed by hot water, and rapidly scattered; the porridge has clear particles, and no adhesion or softness, so as to guarantee delicious taste and tender taste of the deep-sea fish porridge.

The invention discloses a manufacturing method for leading-out terminals of a ceramic integrated circuit encapsulation casing and a special lead framework. The special lead framework comprises an outer frame 1 and leads 2, and forms a grid bar structure with a frame, wherein the leads 2 are grid bars; the outer ends of the leads 2 are connected with the outer frame, and the inner ends of the leads 2 are in one-to-one correspondence to bonding pads on a ceramic casing 4; after the inner ends of the leads 2 are connected with the bonding pads, the redundant part of the lead framework is cut and separated; and the inner ends of the leads 2 remain on the bonding pads to form bulges so as to form leading-out terminals. Owing to the structure, convenient and accurate positioning is ensured when the leads 2 are welded with the bonding pads, so that a welding die is simplified; and besides, the outer frame can be utilized to achieve direct rack plating, so that the manufacturing technique complexity of the fine-pitch casing is greatly reduced, the production efficiency is improved and the product yield and quality are improved.

The invention provides a torsion-resisting deformation-resisting 360-degree rotary welding locating tool for a lower cross beam. The torsion-resisting deformation-resisting 360-degree rotary welding locating tool for the lower cross beam comprises supporting stand columns, a rotating platform and portal mechanisms. The rotating platform is provided with a welding station corresponding to the lowercross beam. The rotating platform is installed on the two supporting stand columns. The supporting stand columns are provided with servo motors used for driving the rotating platform to rotate. The portal mechanism are installed on the rotating platform. A welding station is located below the portal mechanisms. Jacks are arranged on the portal mechanisms and used for tightly pressing the lower cross beam. The welding station is provided with a fixing hole corresponding to the lower cross beam. A back cover plate of the lower cross beam penetrates through the fixing hole to reach other side ofthe rotating platform, and this side of the rotating platform is provided with a reversible deformation pre-making mechanism. According to the torsion-resisting deformation-resisting 360-degree rotary welding locating tool for the lower cross beam, the tool rotates, so that weld joints on the front side, back side, left side and right side of the lower cross beam are conveniently welded; the reversible deformation pre-making mechanism can pre-make reversible deformation of materials to counteract deformation generated after welding, and unnecessary adjusting and finishing are reduced.

The invention discloses a revolution and auto-rotation chain tensioning type full-automatic bottle blowing machine. The full-automatic bottle blowing machine comprises a rack and a storage hopper, wherein the rack is provided with a pull-blowing mechanism and a heating device; the heating device is provided with an operation mechanism and a heating lamp box, the operation mechanism comprises revolution driving and driven chain wheel shafts and an auto-rotation driving chain wheel shaft which are arranged on rack, and the revolution driving chain wheel shaft is provided with a revolution driving chain wheel; revolution and auto-rotation driven chain wheels are arranged on the revolution driven chain wheel shaft, an auto-rotation driving chain wheel is arranged on the auto-rotation driving chain wheel shaft, a revolution chain is connected on the revolution driving and driven chain wheels, and a bottle support assembly is arranged on the revolution chain, and is provided with revolution wheels; an auto-rotation chain connected on the auto-rotation driving and driven chain wheels is matched with the revolution wheels, the revolution chain is provided with the pull-blowing mechanism and a bottle-taking mechanical arm, the storage hopper is connected with a transportation channel which is connected with a blank-arranging mechanism, and the blank-arranging mechanism is connected with a blank feeding mechanical arm through a slideway; the full-automatic bottle blowing machine is characterized in that one side of the revolution driven chain wheel is provided with a revolution chain tensioning mechanism, and one side of the auto-rotation driving chain wheel is provided with an auto-rotation chain tensioning mechanism.

The invention provides a root positioning mechanism for T root blade profile detection of a steam turbine. The problems that the root is unreliable in positioning and clamping and the detection accuracy is influenced during the existing T root blade profile detection can be solved. The root positioning mechanism comprises a profile measuring tool bottom plate, wherein a positioning bottom plate is fixedly arranged on the profile measuring tool bottom plate; a root positioning assembly is fixedly arranged on the positioning bottom plate and comprises a positioning seat and radial positioning seats; the radial positioning seats symmetrical to each other are respectively arranged at two ends of the front side of the positioning seat; the positioning seat and the two radial positioning seats are of a concave structure of which the front side is open; a T root is positioned in the concave structure, and an upper shoulder surface of the T root is positioned by the two radial positioning seats; an inner radial surface of the T blade is positioned by the positioning seat; radial root tightening mechanisms are arranged on the positioning bottom plate and the front side of the concave structure; and the inner radial surface of the T root and the positioning seat are pressed by the radial root tightening mechanisms.

The invention discloses a hydraulic packer and a mounting method of the hydraulic packer. The hydraulic packer and the mounting method of the hydraulic packer are used for downhole oil production by layer and the like. The hydraulic packer comprises a releasing mechanism, a rubber barrel sealing mechanism, an anchoring mechanism, a setting mechanism and the like. The anchoring mechanism comprises an upper cone, a lower cone, a slip, a reset spring and a slip cage, the upper end of a T-shaped sleeve of the lower cone is connected with a conical head, the T-shaped sleeve is sleeved with a compression sleeve, matched steps are arranged between the compression sleeve and the T-shaped sleeve, the compression sleeve can axially slide along the outer side of the T-shaped sleeve, and an expansion spring is arranged between the compression sleeve and the conical head and on the outer periphery of the T-shaped sleeve. The releasing mechanism is arranged on the upper portion of the hydraulic packer and comprises an upper connector, a releasing sleeve, a fishing barrel, a releasing piston, a ball seat, a ball and the like. After setting of the packer is completed, releasing can be achieved by throwing the ball and can be achieved by rotating a pipe column in the forward direction. Due to the fact that the expansion spring is arranged on the lower cone, the conical head can reliably expand the slip due to the thrust of the expansion spring. Meanwhile, due to the design of the releasing mechanism, the problem that the lower tensile force borne by the packer is insufficient is solved.

The invention discloses a portable line tightening device, and relates to the field of power supply line construction. The portable line tightening device comprises a lifting device which is provided with a hollow square outer cylinder. The outer cylinder is provided with a rack sliding in the outer cylinder. A ratchet box is arranged in the front part of the outer cylinder. The ratchet box is internally hinged with a ratchet meshed with the rack, and is externally hinged with a handle. The front end of the handle is hinged with a front pawl which is matched with the ratchet and equipped with a torsion spring. The ratchet box is further internally hinged with a rear pawl which is disposed in back of the ratchet, matched with the ratchet, and equipped with a torsion spring. A fixing ring connected with the cross arm of a pole is arranged at the front end of the rack. The side of the fixing ring is connected through a fixing rope with a hook b which can hook a line clamping device when the lifting device is contracted to a minimum. The rear end of the lifting device is connected with the line clamping device through a hook a, and the line clamping device clamps a cable through match between a lower line clamping sleeve and an upper line clamping sleeve. The portable line tightening device is compact in structure, convenient to carry, reliable in tightening, capable of effectively preventing downward cable loosening, and applicable to occasions with large tension travel.

The invention discloses a clinic support for the hand and foot surgical department. The clinic support comprises a support body and a crank, connecting screw holes are formed in the left end and the right end of the support body, screw rods are mounted in the connecting screw holes, the lower ends of the screw rods are connected with connecting seats, and pre-buried fixed screw holes are formed inthe connecting seats. Rotary discs are fixed to the tops of the screw rods, a connecting rod is mounted on the outer wall of the crank, and the crank is located at the front end of the middle of thesupport body. A main umbrella-shaped gear is fixed to the inner end of the connecting rod, and the lower end of the main umbrella-shaped gear is connected with a secondary umbrella-shaped gear. A leadscrew is mounted at the lower end of the secondary umbrella-shaped gear, a bearing table is mounted on the outer side of the middle of the lead screw, and sliding blocks are fixed to the left end andthe right end of the bearing table. A stand column is mounted in the middle of each sliding block, and a base is fixed to the bottom end of the support body. The clinic support for the hand and footsurgical department is provided with the screw rods, the rotary discs are rotated, the screw rods can rotate accordingly, then the screw rods carry out vertical displacement, and therefore fixing operation is convenient.

The invention relates to a combined implanting system for minimally invasive thigh bone, consisting of a femur neck rear-side fixing plate, a tuberositas rear-side fixing plate, a tuberositas outer-side fixing plate and a femur neck fixing plate connecting body. The tensioning of femur neck, tuberositas and a ball head as well as the positioning and locking of femur trunk are realized by adoptingthe femur neck fixing plate, the tuberositas rear-side fixing plate, the tuberositas outer-side fixing plate, a femur near-end fixing plate and a femur-trunk connecting plate through spherical lag screws or locking lag screws. The invention has the advantages of simpleness in operation, small cut, favorable integral fixing effect, firmness in tightening, no loosening, no potential safety hazards after being used for a long term, convenience for the accurate resetting, no deformation and favorable treatment effect.

The invention relates to a minimal invasive combined pressurizing and locking bone fracture plate for trochanter comminuted fracture and femoral neck fracture. The bone fracture plate comprises a trochanter rear-side fixing plate and a femoral proximal-end fixing plate, which are connected into an integrated structure for respectively covering the trochanter rear side and femoral proximal end in an annular shape, wherein first locking holes are respectively formed on two ends of the trochanter rear-side fixing plate, and first locking nails which penetrate the rear side of the trochanter crown head end and the rear side of the trochanter crown bottom end are locked in the two first locking holes respectively; three second locking holes, arranged in a regular triangle way, are formed on the femoral proximal-end fixing plate, a second locking nail for locking femoral trochanter, femoral neck and bulb penetrates at least one second locking hole; and the trochanter rear-side fixing plate and the femoral proximal-end fixing plate are connected into an integrated structure for covering the trochanter rear side and femoral proximal end in an annular way. By utilizing a ball lag screw or a locking lag screw, tensioning of the trochanter, the femoral neck and the bulb and positioning lock on the femoral diaphysis are realized, so the minimal invasive combined pressurizing and locking bone fracture plate for the pulverous trochanter fracture and femoral neck fracture has the advantages of simpleness in operation, small cut, good fixing effect, firm tensioning, no potential safety hazards in long term use, no deformation and good treatment effect and is beneficial to accurate diaplasis.

The invention provides a rotary part pneumatic tensioning device with a shaft positioning function. The rotary part pneumatic tensioning device comprises a main seat body, a workpiece rotating shaft, an oil cylinder end cover, a hydraulic oil rotating joint, an air pressure input and output port, a piston stop sliding block, a chuck pull rod piston, a chuck tensioning spring, a spring chuck and a chuck stop pin, wherein the workpiece rotating shaft is arranged in the main seat body; the workpiece rotating shaft is rotationally connected with the main seat body; one end of the workpiece rotating shaft is provided with the hydraulic oil rotating joint; the chuck pull rod piston is arranged in the workpiece rotating shaft; the piston stop sliding block is arranged at the position, located at one end of the chuck pull rod piston, in the workpiece rotating shaft; the output end of the hydraulic oil rotating joint penetrates through the piston stop sliding block and is led into one end of the chuck pull rod piston; the outer side of the chuck pull rod piston is sleeved with the chuck tensioning spring; the spring chuck is fixed at the end part of the chuck pull rod piston; a workpiece mounting position is arranged at the end part of the spring chuck; and the spring chuck is inserted into the chuck stop pin. According to the device, pneumatic tensioning of the rotary part is facilitated, and accurate and automatic clamping is facilitated.

The invention provides a water outlet assembly for a food waste disposer, and belongs to the technical field of smashing. The water outlet assembly for the food waste disposer solves the problem that an existing water outlet assembly is inconvenient to install. The water outlet assembly for the food waste disposer comprises a water outlet, a top plate, an upper locking ring and check rings, wherein the water outlet is shaped like a circular tube, one end of the water outlet protrudes outwards in the radial direction to form flanges, installation grooves are formed in the other end of the water outlet, the top plate is arranged on the water outlet in a sleeving mode, the upper locking ring is arranged on the water outlet in a sleeving mode, multiple bosses are formed on the periphery of the upper locking ring in a protruding mode, each boss is connected with a stopper screw in a threaded mode, the check rings are installed in the installation grooves, the upper locking ring can abut against the check rings, and the stopper screws can rotate to push the top plate to tightly abut against the flanges of the water outlet. The water outlet assembly for the food waste disposer has the advantages of being convenient to install and good in stability.

The invention discloses a manufacturing method for leading-out terminals of a ceramic integrated circuit encapsulation casing and a special lead framework. The special lead framework comprises an outer frame 1 and leads 2, and forms a grid bar structure with a frame, wherein the leads 2 are grid bars; the outer ends of the leads 2 are connected with the outer frame, and the inner ends of the leads 2 are in one-to-one correspondence to bonding pads on a ceramic casing 4; after the inner ends of the leads 2 are connected with the bonding pads, the redundant part of the lead framework is cut and separated; and the inner ends of the leads 2 remain on the bonding pads to form bulges so as to form leading-out terminals. Owing to the structure, convenient and accurate positioning is ensured when the leads 2 are welded with the bonding pads, so that a welding die is simplified; and besides, the outer frame can be utilized to achieve direct rack plating, so that the manufacturing technique complexity of the fine-pitch casing is greatly reduced, the production efficiency is improved and the product yield and quality are improved.

The invention discloses a scroll which is formed by serially installing a plurality of rubbing pairs on a main shaft with an air intake channel. The rubbing pairs comprise a fixed ring and an expansion ring, wherein the expansion ring is matched with the fixed ring, the expansion ring is sleeved on the fixed ring, and a first annular cover plate and a second annular cover plate limiting the expansion ring to make axially displacement are fixedly connected at the two sides of a ring body. The expansion ring comprises an expansion ring seat, an arc slider, a connecting member and a rubbing member, wherein the expansion ring seat is provided with a peripheral slider groove, convex shoulders at the two sides of the slider groove are both provided with arc inclined holes, and the corresponding arc inclined holes on the convex shoulders at the two sides of the slider groove are axially communicated; the arc slider of the expansion ring is provided with a connecting member hole, the arc slider is matched with the slider groove in a sliding mode, the connecting member passes through the connecting member hole, and two ends of the connecting member are positioned in the arc inclined holes of the convex shoulders, the arc slider is provided with a radial rubbing member hole with the necking outer end, an elastic member is arranged in the rubbing member hole, and the rubbing member projecting the outer arc surface of the arc slider is movably arranged in the rubbing member hole in a matching mode, therefore, the invention has the advantages of firm expansion and wide use range.