473results about How to "Reduce contact surface" patented technology

The utility model discloses an adjustable large-span steel drilling tool, relates to the technical field of steel drilling, and aims to solve the technical problems that the front-back position of current steel is inconvenient to adjust, and dislocation drilling work is affected. The adjustable large-span steel drilling tool comprises a base, and a drilling mechanism and a conveying mechanism are fixedly arranged on the upper surface of the base; clamping assemblies are fixedly arranged on a front frame and a rear frame of the conveying mechanism respectively, clamping pieces are installed on the faces, close to each other, of the two clamping assemblies respectively, and a plurality of guiding pieces are fixedly arranged on the upper surface of a conveying belt of the conveying mechanism. The clamping assemblies and the clamping pieces are matched to clamp and fix the position of the steel, the position can be kept stable when the drilling mechanism drills the steel conveniently, deviation is prevented, and meanwhile the clamping assembly structures on the two sides are arranged so that the steel can be pushed forwards and backwards to move conveniently. The drilling machine has the advantages that the position of steel is flexibly adjusted, and drilling work at different positions is facilitated.

The invention discloses a rubber coating device for automatic rubber coating of fiber umbrella ribs, and relates to the technical field of umbrella rib production. Comprising a rubber coating rack, a lifting mechanism, a rubber injection assembly and a controller, a supporting base is fixed to the bottom of the lifting mechanism, a U-shaped lower mold is arranged on the front face of the rubber coating rack, and a U-shaped upper mold is fixed to the bottom end of the supporting base. The mold is provided with the lower mold with the groove, the upper mold with the convex block, the inclined block and the slope, the contact surface between the molded connecting part and the rubber coating block is small, the stress is concentrated, and the connecting part can rotate at a large angle around the connecting part of the connecting part and the plastic block, so that the connecting part and the plastic block are conveniently separated, and the production efficiency is improved. The phenomenon that the rubber coating surfaces of the separated fiber umbrella ribs are possibly lack of rubber is avoided, and the product quality is improved.

The invention discloses an MIM injection molding multi-mold-cavity precise magnetic attraction part suction method, and belongs to the technical field of MIM injection molding molds and production devices. Injection molding is carried out on the basis of a glue feeding mode of point glue feeding, and the point gate can be located on the concave surface of the product, so that the contact surface of the gate and the product body is small, the gate can be conveniently removed in a mold when the mold is opened, and the integrity of the molded product is guaranteed; by means of the magnetic type material taking jig, the problem that due to the fact that a protruding mold core is arranged on a female mold, the contact force between a formed product and the female mold is large, and demolding is difficult can be solved, and rapid material taking and discharging are achieved; according to the magnetic type material taking jig, the magnetic type material taking jig is in positioning contact with a product in advance, then adsorption / separation is conducted through the movable magnet, and meanwhile the separation air cylinder is arranged in a matched mode, so that material taking and discharging operation can be conducted rapidly and accurately.

The utility model discloses a tumbling cutter for rolling finish machining of a metal workpiece, which relates to the technical field of rolling machining cutters, solves the technical problems of lower surface roughness grade, complex structure and smaller machining range in the prior art, comprises a cutter handle, and is characterized in that a pin shaft is fixedly mounted on the cutter handle; a deep groove ball bearing is installed on the pin shaft, a steel ball frame is fixedly installed at the front end of the cutter handle, a steel ball hole is formed in the front end of the steel ball frame, and a hard alloy ball is movably installed in the steel ball hole. Components are few, the structure is simple, manufacturing and maintenance are easy, and production efficiency is improved; the contact surface of the tumbling cutter is small, large pressure can be obtained, equipment load is reduced, abrasion is relieved, and the service life of equipment is prolonged; the deep groove ball bearing serving as a supporting element is small in friction coefficient and beneficial to maintaining the rolling state; and the production flexibility is improved due to the workpieces which can be subjected to roll finishing.

The invention discloses a surface phosphating and cleaning device for metal rollers for foils, and relates to the technical field of metal material surface treatment.The surface phosphating and cleaning device comprises a base and a fixing frame, a phosphating pool and a cleaning pool are fixedly arranged at the top of the base, and two walking mechanisms are arranged at the top of the base; a portal frame is fixedly connected between the tops of the two walking mechanisms, two first multi-stage electric telescopic rods are symmetrically arranged on the top face of the inner side of the portal frame, a mounting plate is fixedly connected to one ends of the first multi-stage electric telescopic rods, two guide rods are fixedly connected to the bottom of the mounting plate, and a fixing frame is fixedly connected with the guide rods. Three swing washing structures are arranged outside the fixing frame, and the first storage rack and the fixing frame are fixedly connected in a penetrating mode. According to the surface phosphating cleaning device for the metal rollers for the foils, the problem that a plurality of metal rollers are damaged due to mutual collision during phosphating is solved.

The utility model relates to the field of feed production, and particularly discloses an integrated closed solid-liquid mixed feed production line which comprises a main material adding device, at least one small material adding device, at least one liquid material adding device, a mixer and a finished product subpackaging device, the liquid material adding device comprises a liquid storage tank, a liquid inlet pump, a liquid metering scale and a liquid spraying system which are connected in sequence; an inlet of the mixing machine is respectively connected with the main material adding device, the small material adding device and the liquid material adding device; the finished product sub-packaging device comprises a finished product bin, a discharging screw rod and a sub-packaging weighing packaging machine which are connected in sequence; and an inlet of the finished product bin is connected with an outlet of the mixing machine. According to the utility model, the main material adding device, the small material adding device and the liquid material adding device are respectively arranged in front of the mixing machine, so that solid-liquid mixed feed production is realized, moisture absorption and caking of soluble materials are reduced, and the small material adding device directly communicated with the mixing machine is arranged to reduce the contact surface between small materials and wet materials.

The invention discloses a clindamycin phosphate vaginal gel preparation device and method, and belongs to the technical field of pharmacy. The method comprises the steps that after clindamycin phosphate vaginal gel is prepared by a preparation tank, the clindamycin phosphate vaginal gel is filled into a vacuum defoaming tank through a feeding opening in the bottom of the vacuum defoaming tank, and a packaging tank is conveyed to a rotary positioning mechanism through a conveying mechanism; and the filling mechanism is used for filling the clindamycin phosphate vaginal gel stored in the vacuum defoaming tank into the packaging tank on the rotary positioning mechanism. The invention aims to solve the problems that the existing clindamycin phosphate vaginal gel is complex in preparation process and difficult to carry out constant temperature control, the preparation and filling process needs to be transferred for multiple times, the viscosity of the gel can change along with time, temperature or storage conditions, the uniformity of the gel and the use experience of a patient are influenced, and the gel is difficult to be used. And the filled finished product gel is very easy to have a large number of bubbles, so that a more transparent and uniform gel product can be obtained, and the physical property and the use comfort of the gel are improved.

The chemical formula of the material is Na < x > (Fe Mn < 1-a > A < y >) O < 2 >, x is more than or equal to 0.66 and less than or equal to 0.92, a is more than or equal to 0.3 and less than or equal to 0.6, and y is more than or equal to 0.01 and less than or equal to 0.1. The method comprises the steps that pure water is added into a kettle to serve as an initial base solution, a mixed salt solution of ferric salt and manganese salt is prepared, and the total molar concentration of the solution is 1-2 mol / L; preparing a precipitator; enabling the mixed salt solution and a precipitant to enter a reaction kettle for reaction according to a flow velocity-volume ratio of 1: (0.8-1) in a parallel flow manner, stopping the reaction until the particle size is 2-8 microns, and sequentially performing washing, positive pressure filtration, drying and screening to obtain a carbonic acid series sodium ion positive electrode material precursor; mixing the precursor, a sodium salt and a dopant according to a ratio; the mixture is subjected to staged sintering, and acidic gas is introduced in the cooling stage; and cooling, crushing, carrying out airflow crushing, and screening to obtain the P2-type sodium ion positive electrode material. The material disclosed by the invention is good in electrochemical performance, cycling stability and battery capacity.

The utility model discloses a walking swinging telescopic mechanism for tunnel construction ultrasonic detection, which belongs to the technical field of tunnel ultrasonic detection equipment and specifically structurally comprises a walking door frame, an electric walking mechanism, an arc-shaped synchronous driving transmission belt and a telescopic cylinder. An arc-shaped rail is installed on the rear side of the walking door frame, the arc-shaped rail is consistent with the inner arch face of the tunnel, the two ends of the arc-shaped rail extend to be close to the ground, the arc-shaped rail is connected to a sliding plate through a sliding block, and an arc-shaped synchronous driving belt is connected to the inner side of the sliding plate. According to the utility model, the detection position and orientation are accurate and reliable, the detection result is more accurate, the radial swing angle adjustment can always ensure the measurement perpendicular to the tangent line of the detection point, and the telescopic cylinder controls the telescoping through the measurement accuracy, so that the telescoping function is realized; and a certain protection effect on the probe is achieved.

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a bone repair fixing and bundling device and application thereof and application of magnesium wires as bone repair products, the bone repair fixing and bundling device comprises a bundling belt and a fixing buckle, the bundling belt is formed by at least one magnesium wire, the fixing buckle and the magnesium wires are made of degradable pure magnesium, and the magnesium wires are made of degradable pure magnesium. The strapping tape surrounds a target bone, and the two ends of the strapping tape are tightened and fixed in the fixing buckles; the diameter of each magnesium wire ranges from 0.5 mm to 1.5 mm. The binding device is applied to internal fixation or auxiliary internal fixation of traumatic bone fractures and is combined with an external cortical bone bridge to be applied to bone tumor repair and fixation, and the degradation product in the magnesium degradation process is used for inhibiting tumor recurrence and promoting osteogenesis to promote formation of the external cortical bone bridge. Therefore, the magnesium wire has a great application prospect as a bone repair product.

The utility model provides glass fiber reinforced plastic pipeline cutting equipment, which relates to the technical field of glass fiber reinforced plastic processing, and comprises a base carrying assembly and a cutting mechanism, a clamping and pushing part assembled by a bolt is arranged above the side of the base carrying assembly, and the cutting mechanism installed in an inserted manner is arranged on the outer side of one end of the base carrying assembly. The cutting mechanism comprises a side end frame, a cross beam, a third hydraulic cylinder, a lifting block, a cutting motor, a protective shell and a saw disc. The side end frame is arranged on the outer side of one end of the base carrying assembly. According to the utility model, the output power of the first hydraulic cylinder and the second hydraulic cylinder is mainly utilized to drive the output end to perform telescopic operation, so that the lead screw motor outputs the power to drive the lead screw group and the sliding block to be in sliding connection, and then the clamping guide wheel is matched with the upper and lower guide wheels to perform rolling clamping fitting effect on the glass reinforced plastic pipe; in this way, the contact surface with the glass reinforced plastic pipe can be reduced as much as possible during clamping, so that the quality of products is improved, and damage to the products is reduced.

The present invention relates to the technical field of lithium-ion batteries, and in particular to a single-crystal lithium-rich manganese-based positive electrode material and a preparation method thereof and a lithium-ion battery. The chemical formula of the positive electrode material is Li x Mn a Ni b Co c M d N e O g , wherein M is one of W, Mo, La, Zr, Nb, Ta, V, Hf, N is one of F, B, Cl, Br, S, P, 1<x≤1.3, 0.5<a≤0.8, 0.1≤b<0.5, 0<c≤0.5, 0<d≤0.1, 0<e≤0.1, 2≤g<2.2, 0.1≤d / e≤5. The compacted density of the positive electrode material of the present invention can reach up to 3.6g / cm 3 The minimum specific surface area is only 0.25m 2 / g, which can greatly reduce the contact area between the positive electrode material and the electrolyte, thereby inhibiting the interfacial side reactions and improving the volume energy density and cycle life of the lithium-rich manganese-based positive electrode material.

The invention provides a semiconductor structure, a semiconductor structure forming method and a memory, and relates to the technical field of semiconductors. The semiconductor structure comprises a substrate, wherein a first groove is formed in the substrate; the dielectric layer covers the inner surface of the first groove, and the dielectric layer at least comprises a side wall dielectric layer located on the side wall of the first groove and a bottom dielectric layer located at the bottom of the first groove; a word line groove is defined by the side wall dielectric layer and the bottom dielectric layer which are located in the same first groove, and the word line groove comprises edge areas close to the side wall dielectric layer and a middle area located between the edge areas; the word line structure is located in the word line groove, and the word line structure comprises an edge word line layer located in the edge area and a middle word line layer located in the middle area; and the upper surface of the middle word line layer is not lower than the upper surface of the edge word line layer. According to the invention, the GIDL problem of the semiconductor device can be improved.

The utility model discloses a groove type wafer bracket used for batch wafer cleaning, which comprises a bracket main body, wafer supporting seats and arc-shaped slots, the two sides of the upper surface of the bracket main body are symmetrically provided with straight-strip-shaped wafer supporting seats, the wafer supporting seats are arranged along the long sides of the bracket main body, the top surfaces of the wafer supporting seats are supporting surfaces, and the arc-shaped slots are arranged in the supporting surfaces. The supporting surface is an arc-shaped surface with a high outer side and a low inner side, a plurality of limiting teeth are arranged on the top surface of the wafer supporting seat along the length, the limiting teeth are perpendicular to the long edge of the bracket main body, the limiting teeth are parallel and are arranged at equal intervals, arc-shaped slots which are sunken downwards are formed between the adjacent limiting teeth, and a wafer workpiece is inserted into the corresponding arc-shaped slots on the two sides. The radius corresponding to the groove bottom of each arc-shaped slot is consistent with the radius of the wafer workpiece, and the total contact length of the two arc-shaped slots and the circumferential surface of the wafer workpiece does not exceed 1 / 3 of the perimeter of the wafer workpiece; according to the bracket, the contact area with the wafers can be reduced, the supporting effect on a plurality of wafers is ensured, and the wafers cleaned in batches can achieve a higher cleaning effect.

The invention belongs to the technical field of cosmetics, and particularly relates to a cosmetic composition containing deoxyarbutin and a preparation method of the cosmetic composition. The cosmetic composition is prepared from the following raw materials in percentage by weight: 2%-5% of deoxyarbutin, 9%-20% of polyol, 0.7%-1.5% of a bacteriostatic agent, 50%-75% of nanocellulose hydrogel, 0-5% of a humectant, 0-1% of a thickening agent and the balance of deionized water. According to the invention, oxygenolysis of deoxyarbutin in water is prevented, the texture and the smearing feeling of cosmetics are remarkably improved, the cosmetics can be better attached to skin, the product action time is prolonged, and the action effect and the use comfort feeling are improved.

The invention relates to the technical field of motorcycle shock absorbers, and discloses a motorcycle shock absorber which comprises four cylinders, telescopic rods are arranged in first inner cavities of the cylinders, positioning rods are fixed to the bottoms of the first inner cavities, and the telescopic rods reciprocate on the positioning rods. A first damping hole is formed in the telescopic rod, and the damping cavity communicates with the first inner cavity through the first damping hole. And the shock absorption effect and the service life of the shock absorber during operation are improved.

This invention relates to the field of embryo resuscitation technology and discloses an auxiliary warming device for frozen embryo resuscitation, including a collection plate. A fixing ring is fixedly connected to the side wall of the collection plate, and a forward threaded groove is formed on the side wall of the fixing ring. The cover plate drives the separator ring to rotate clockwise through the contact rod and the fixing plate. Since the reverse threaded groove rotates in the opposite direction to the forward threaded groove, the rotating ring will move upward at this time. The upward rotating ring will drive the separator ring to move upward synchronously, so that the through hole gap coincides with the flow hole. At this time, the new solution on the outer wall of the separator ring flows downward through the flow hole and the through hole gap. Finally, the new solution mixes with the solution inside the collection plate. At this time, the pressure of the dripping will be absorbed by the top of the fixing ring and will not directly contact the solution inside the collection plate. When the operator twists the cover plate to close it, the flow hole and the through hole gap will coincide, and the new solution will mix with the solution inside the collection plate, effectively reducing the damage to the outer wall of the embryo cell membrane when injecting the new solution.

The invention discloses a preparation method of a photovoltaic cell. The preparation method comprises the following steps: providing a semiconductor substrate layer; forming a textured structure at least on the first surface of the semiconductor substrate layer; forming a first metal seed layer on the first surface side of the semiconductor substrate layer; forming a second metal seed layer on the second surface side of the semiconductor substrate layer; forming a first patterned grid line mask layer; the first graphical grid line mask layer is provided with a plurality of first electrode grooves; and forming a second patterned grid line mask layer, the second graphical grid line mask layer is provided with a plurality of second electrode grooves; wherein the difference between the top width and the bottom width of at least the first electrode groove is between 0 mu m and 3 mu m; forming a first conductive structure; and a second conductive structure; and removing the first patterned grid line mask layer, the second patterned grid line mask layer, a part of the first metal seed layer which is not covered by the first conductive structure and a part of the second metal seed layer which is not covered by the second conductive structure. The invention also provides a photovoltaic cell.

The invention relates to the technical field of well lids, and discloses a waterlogging prevention well lid which comprises a drainage channel built in a roadbed, a communicated well body is built on the drainage channel, a cover plate is arranged at the top opening position in the well body, a gap is reserved between the periphery of the cover plate and the well wall of the well body, and the top face of the cover plate is flush with the road surface of the roadbed. A plurality of fixing blocks are installed on the bottom face of the cover plate at equal intervals, and telescopic rods are installed between the fixing blocks and the inner wall of the well body at the corresponding positions. According to the well lid, the cover plate of the well body is supported through the telescopic rod, when water is accumulated on the road surface, the telescopic rod can be controlled to lift to drive the cover plate to rise, then the gap between the cover plate and the well body is increased, the rainwater discharging amount is increased, accumulated water discharging is accelerated, the problem of water accumulation on the road surface is relieved or solved, and workers do not need to go to the site for operation; the pavement ponding reaction can be quickly carried out.

The utility model discloses a controllable mechanical arm for converter steelmaking experiments, which relates to the technical field of mechanical arms for steelmaking experiments and comprises a base, a sliding table capable of driving equipment to slide is arranged on the upper surface of the base, and a sampling mechanism for sampling molten steel samples is arranged on the bottom surface of the base. An adjusting mechanism for driving the sampling mechanism to move is further arranged between the base and the sampling mechanism, a collecting and releasing assembly for driving the sampling mechanism to turn over for sampling and sample discharging is further fixedly installed on the bottom face of the base, the adjusting mechanism comprises two mechanical arm bodies, and the upper surfaces of the mechanical arm bodies are arranged on the two sides of the bottom face of the base; electric push rods used for driving the two mechanical arm bodies to move are fixedly installed on the surfaces of the two sides of the base, in the scheme, by arranging the sampling mechanism and the adjusting mechanism, the complexity and errors of manual operation are reduced, and the accuracy and stability of the sampling and sample discharging process are further guaranteed.

The present invention provides a self-sealed yarn state monitor, comprising: a transparent key plate, a front shell, a display screen, a display screen fixing plate, a circuit board and a rear shell; the front shell and the rear shell form a sealed cover shell; the circuit board is installed in the cover shell; the front shell is provided with a mounting hole, the display screen is installed in the display screen fixing plate, and the display screen fixing plate is installed in the mounting hole; the transparent key plate is installed on the outer surface of the front shell; baffles are provided on the upper and lower sides of the display screen fixing plate. The display screen of the present invention is fixed to the front shell through the display screen fixing plate, and small baffles are provided on the upper and lower sides of the display screen fixing plate, which can better fix the display screen and make the display screen more secure and fit more closely when installed; the design of the display screen fixing plate eliminates the friction between the display screen and the circuit board, and increases the service life of the display screen and the circuit board.

The utility model discloses a high-efficiency anti-fog resin lens, which comprises a lens, anti-fog film layers are arranged on the front surface and the rear surface of each lens, honeycomb texture structures are arranged on the outer surfaces of the anti-fog film layers, each honeycomb texture structure is formed by connecting and arranging a plurality of hexagonal grooves, at least one air groove is formed in the inner side of each hexagonal groove, and the depth of each air groove is smaller than or equal to that of each groove. According to the utility model, the honeycomb texture structure is arranged on the outer surface of the anti-fog film layer, and the surface tension is improved through the texture structure and the grooves, so that micron-sized water drops are difficult to form after water vapor is liquefied, and a water film is formed; the widths or diameters of the grooves and the air grooves are nanoscale, water is attached to the surface of the anti-fog film layer, and air in the grooves and the air grooves supports the water, so that the contact surface of the water and the film layer is reduced, the smaller the contact surface is, the better the hydrophobicity of the film layer is, and the texture structure on the surface of the anti-fog film layer effectively plays an anti-fog and hydrophobic role.

The invention relates to the field of drying devices, in particular to a drying device for HDPE pipe production. A drying chamber is fixedly connected to the mounting table; a turntable is rotationally connected into the drying chamber; the rotating disc is fixedly connected with a separation block; a spiral guide frame is fixedly connected into the drying chamber; a discharge hole is formed in the mounting table; a dryer is fixedly connected to the mounting table; a mounting head is fixedly connected into the drying chamber; and the dryer and the mounting head are fixedly connected and communicated with a connecting pipe. The spiral guide frame is arranged to guide and limit distribution of pipes in the drying chamber, the contact face between the pipes is reduced, the pipes are arranged to be dried in a moving state, when the pipes move along the spiral guide frame, the contact face positions between the pipes can be continuously changed, and therefore the situation that certain positions on the pipes are shielded for a long time, and the pipe drying efficiency is improved is avoided. And all positions of the pipe can be effectively dried, so that the drying time of the pipe is saved, and the purpose of improving the pipe drying efficiency is achieved.

The utility model relates to the technical field of medical instruments, in particular to an intrauterine hemostasis device for gynaecology and obstetrics, which comprises an outer cylinder, liquid collecting notches are formed in the circumference of the outer wall of the outer cylinder in an array mode, the liquid collecting notches vertically penetrate through the outer cylinder, an inner cylinder is arranged in an inner cavity of the outer cylinder, and the upper end of the outer wall of the inner cylinder is connected with a liquid carrying structure. The outer side of the liquid-carrying structure is attached to the inner wall of the outer barrel, an air bag is arranged in an inner cavity of the inner barrel, the lower end of the air bag is connected with a bearing barrel, the upper end of an inner cavity of the bearing barrel is connected with a downwards-concave bearing part, the upper end of the downwards-concave bearing part is connected with the air bag, and an air inlet pipe fitting is arranged on the right side of the inner cavity of the bearing barrel. When the air bag is used for conducting intrauterine hemostasis on a patient, bloodstain in the vagina of the patient can be cleaned through the outer barrel, the inner barrel and the liquid carrying structure, then the air bag is conveyed into the uterus, and the situation that when the air bag is conveyed into the uterus, the outer wall of the air bag carries much bloodstain, and consequently intrauterine wound damage is aggravated is prevented.

The utility model belongs to the field of engineering construction, and particularly relates to a fixing device capable of being quickly assembled and disassembled on a round rod, the device comprises a detachable shell part and an internal assembly part, the detachable shell part comprises a top cover, a conical shell and a detachable bottom cover, and the internal assembly part comprises an upper baffle, a lower baffle, a small ball and an auxiliary spring. The upper baffle and the lower baffle both comprise poking pieces, a longitudinal opening allowing the poking pieces to slide up and down is formed in the conical shell, the round rod is rapidly locked by the small ball through the acting force of the lower baffle and the auxiliary spring, the poking pieces of the upper baffle fluctuate downwards, and the device is rapidly unlocked. The nut is simple in structural design, does not need external tools, is convenient to disassemble and assemble, is suitable for any angle, can be replaced and maintained, can replace the function of a nut in many aspects, is also suitable for a smooth round rod which is not suitable for the nut, greatly saves time, improves the disassembly and assembly efficiency of an operator, and reduces the labor intensity of the operator. And an inexperienced person in daily life can also conveniently use the device.

The invention discloses a two-body separation type extraterrestrial celestial body dielectric constant detection device and method, and the device comprises a surface body which is located on the surface of a penetrated medium when penetrating the penetrated medium, and is internally provided with a surface body control module, the surface body control module comprises a first electromagnetic pulse emission source and a first electromagnetic pulse receiving source; and the penetration body is connected with the surface body through a cable and located in the penetrated medium when penetrating the penetrated medium, a penetration body control module is arranged in the penetration body, and the penetration body control module comprises a second electromagnetic pulse emitting source and a second electromagnetic pulse receiving source. According to the invention, in combination with kinetic energy penetration flight capability, dielectric constant in-situ detection of any position of an extraterrestrial celestial body can be realized, such as penetration analysis of orbit-surrounding release.

The utility model provides a sanitary fast-assembly clamp assembly. The sanitary fast-assembly clamp assembly comprises two connectors, a clamp for locking the two connectors and a V-shaped sealing ring located between the two connectors. The V-shaped sealing ring comprises tip parts extending in the upper direction and the lower direction and plane parts extending in the left direction and the right direction, sealing grooves are formed in the abutting faces of the connectors, the plane parts are extruded by the abutting faces of the two connectors, and the tip parts are located in the sealing grooves and extruded by the sealing grooves. According to the sanitary fast-assembling clamp assembly, the V-shaped sealing ring is adopted to replace a plane sealing gasket, the sealing effect is better, the tip end of the V-shaped sealing ring is squeezed by the sealing groove, the contact area between the tip end of the V-shaped sealing ring and the sealing groove is greatly reduced, after the sealing face of the connector is twisted due to welding deformation, the V-shaped sealing ring can conduct displacement compensation according to a gap, and the sealing effect is better. The sealing reliability is ensured.

The invention discloses a texturing device for preparing a back contact battery. The texturing device comprises a texturing groove; the bearing and conveying assembly comprises a bearing and conveying unit, and the bearing and conveying unit comprises a bearing and conveying disc; the driving assembly comprises a driving unit and a transmission unit, the transmission unit comprises a transmission shaft, the transmission shaft is connected with transmission discs, the adjacent transmission discs are connected through connecting rods, and the driving unit is in transmission connection with the transmission discs; the turbulent flow assembly comprises a turbulent flow unit, and the turbulent flow unit comprises a turbulent flow plate. According to the texturing device for preparing the back contact battery, the bearing transmission disc is driven to rotate through the driving assembly, the contact surface is reduced, silicon wafer transmission is achieved, meanwhile, the contact position of a silicon wafer and the bearing transmission disc is changed, and therefore imprint on the back face of the silicon wafer can be reduced; when the driving assembly operates, the spoiler is driven to rotate to promote the flowing of the reaction liquid and the contact reaction with the silicon wafer, so that the texturing quality is improved on the basis of reducing driving sources, simplifying the structure and reducing the energy consumption.

The utility model discloses a weighing turntable of a radial winding packaging machine, which relates to the technical field of radial winding packaging and weighing of cylindrical objects and comprises a turntable component, a turntable base is arranged at the bottom of the turntable component, adjusting seats are arranged below four corners of the turntable base, and each adjusting seat is provided with a weighing sensor component. Each adjusting seat is connected below four corners of the turntable base through a weighing sensor assembly, each side face of the turntable base is provided with two pull rod limiting devices, the two pull rod limiting devices are symmetrically arranged, and the pull rod limiting devices can effectively avoid displacement and shaking generated when the turntable rotates and starts and stops. And stable operation and metering accuracy of equipment are ensured. The weighing sensor assembly is installed on the adjusting seat, the height and the levelness of the installation position of the weighing sensor can be adjusted through the adjusting seat, and the equipment processing cost and the foundation construction cost are effectively reduced.

The invention provides an automatic pipe distribution mechanism for a radiator core. The automatic pipe distribution mechanism comprises a rack and a turnover pipe distribution assembly. The overturning pipe distribution assembly comprises an overturning conveying belt, an overturning driving piece, a pipe distribution conveying belt and a pipe distribution driving piece. The turnover conveying belt is rotationally mounted on the rack and is driven by the turnover driving part to rotate circularly; the overturning conveying belt is provided with clamping grooves which are arranged in the horizontal direction at intervals in parallel, and the width of the clamping grooves is larger than or equal to the width of the flat pipes. The pipe distribution conveying belt is rotationally installed on the rack and driven by the pipe distribution driving part to rotate circularly, pipe distribution grooves are formed in the pipe distribution conveying belt at intervals in parallel, the width of the pipe distribution grooves is larger than or equal to the thickness of flat pipes, and the interval between the pipe distribution grooves is larger than or equal to the thickness of fins; the feeding end of the pipe distribution conveying belt is located under the output end of the overturning conveying belt. The automatic pipe arranging device is high in automation degree in the overturning pipe arranging process, does not need manual assistance, and meanwhile has the advantages of being high in continuity and high in efficiency.