25results about How to "Solve the rust" patented technology

The utility model relates to the technical field of assembly type steel structure connection, and particularly discloses an assembly type steel structure joint which comprises an I-shaped steel stand column, an I-shaped steel beam and a connecting structure used for connecting and fixing the I-shaped steel beam and the I-shaped steel stand column. The connecting structure comprises a bottom connecting plate connected with the I-shaped steel stand column through bolts and a steel frame fixedly connected to the outer side of the bottom connecting plate, the end of the I-shaped steel beam stretches into the inner side of the steel frame and is connected with the steel frame through bolts, and the two inner sides of the steel frame are further connected with side supporting structures used for supporting the inner walls of the two sides of the I-shaped steel beam through bolts. The connecting structure solves the problems that a connecting structure of a traditional assembly type steel structure joint does not shield and protect the connecting position of a steel beam and a steel column, and the connecting position of the steel beam and the steel column can be rusted in the long-term use process.

The invention provides a stainless steel heat treatment part corrosion protection tool and method based on magnetic polishing. The method comprises the steps that an oxide skin of a stainless steel heat treatment part is removed through nitric acid; preparation before magnetic polishing; magnetically polishing the stainless steel heat-treated part; according to the method, the surface oxide layer of the stainless steel heat-treated part can be removed, the smoothness and surface quality of the stainless steel heat-treated part are improved, the corrosion resistance of the stainless steel heat-treated part is improved, and therefore the corrosion problem caused by welding seam oxidation is solved.

The invention relates to the field of buildings, in particular to a reinforced concrete member manufacturing method and a post-cracking bending rigidity calculation method.The reinforced concrete member manufacturing method comprises the following steps that S1, a steel reinforcement framework is fixed to the set position of a concrete pouring mold, and a reinforced area of a concrete body is determined; s2, determining structural parameters of the reinforcing grooves and the reinforcing ribs; s3, the foam board is cut to enable the shape of the foam board to correspond to the shape of the reinforcing groove, and the foam board is fixed to the position, corresponding to the reinforcing area, in the concrete pouring mold; s4, concrete is poured into the concrete pouring mold, a concrete main body is formed after the concrete is cured and solidified, and after the concrete main body is demolded, the internal foam plate is emptied to form a reinforcing groove; and S5, reinforcing ribs are inserted into the reinforcing grooves, the reinforcing grooves are filled with UHPC, and machining of the concrete member is completed after maintenance. The bearing capacity and durability of the reinforcing system are improved, meanwhile, the glass fiber reinforced resin composite material in the retired wind power blade is applied to the reinforcing system, and the reinforcing cost is reduced.

The utility model discloses a large water conservancy project gate water retaining structure which comprises a base, a slide way, a gate, a cross beam, a rack, a rotating shaft, a worm, a worm gear, a screw and a cleaning mechanism, the gate is opened and closed in the slide way in a sliding mode, the rack on the cross beam supports the rotating shaft and a worm gear and worm transmission system, and a driving motor drives the rotating shaft through a belt pulley set to drive the worm to rotate. When the gate needs to be opened, the worm gear drives the screw rod to ascend; when the gate needs to be closed, the screw rod descends to close the gate tightly, the cleaning mechanism on the cross beam comprises a rotating ring, a cleaning ring and a cleaning brush, sundries and stains on the surface of the screw rod are cleaned through linkage of a transmission shaft and a bevel gear and a rotating shaft, smooth operation is ensured, and the whole structural design is reasonable, easy and convenient to operate and suitable for various water conservancy projects. And efficient, stable and safe operation of the gate is ensured.

In order to overcome the poor durability problem faced by the existing reinforced concrete components used for offshore floating structures, the application provides a FRP-concrete structure, a floating unit, a floating platform and a construction method thereof; the FRP-concrete structure comprises an FRP component, a plurality of shear pin assemblies and a concrete layer, the plurality of shear pin assemblies are arranged in the FRP component, the concrete layer is filled in the FRP component, the shear pin assembly comprises a shear pin and a fiber bundle, one end of the fiber bundle is arranged in the interior of the shear pin, and the end of the fiber bundle away from the shear pin extends out of the shear pin and is connected with the FRP component. The FRP-concrete structure provided by the application has high strength, strong bearing capacity and good durability.

The invention belongs to the technical field of automobile parts, and discloses a gearbox suspension assembly which comprises a connecting support and a corbel support, a mounting hole is formed in the connecting support, a lining assembly is arranged in the mounting hole, first connecting holes are formed in the two sides of the connecting support, and the connecting support is made of a high polymer material; one end of the corbel support is connected with the lining assembly, a second connecting hole is formed in the corbel support, and the corbel support is made of high polymer materials. According to the gearbox suspension assembly, the connecting support and the supporting arm support are both made of the high polymer materials, the salt water corrosion resistance of the gearbox suspension assembly is determined by the characteristics of the high polymer materials, the possible corrosion problem of the gearbox suspension assembly is avoided, and compared with a gearbox suspension assembly made of common sheet metal parts or casting parts, the gearbox suspension assembly has the advantages of being simple in structure and convenient to use. The weight of the gearbox suspension assembly can be reduced by 30%-50%, the lightweight requirement of the gearbox suspension assembly is met, and positive influences on fuel economy, power and safety performance are achieved.

The utility model discloses a modularization water pump body subassembly of quick detachable, belongs to modularization water pump body subassembly technical field, including base and pump casing, the pump casing sets up at the top of base, the lower surface fixed mounting of pump casing has two plug -in boards, the upper surface of base is seted up with two insertion slot, the plug -in board is inserted in the inner wall of the insertion slot at the corresponding position, the inside rotatory mounting of base has two -way screw rod, one end of two -way screw rod extends out base and fixed mounting has the rotating plate, through setting plug -in board cooperation card board use, after the plug -in board is inserted into the insertion slot, utilizes the rotation of two -way screw rod and drives the threaded plate movement, and under the hinging effect of hinged arm, drives the push -plate and drives the card board movement and is inserted into the card slot, realizes the locking of plug -in board, and then completes the assembly locking of pump casing and base, and the assembly mode does not use bolt, and the assembly structure is simple, and convenient operation avoids the bolt loosening and bolt rust problem that bolt assembly can easily appear.

This utility model discloses a rear axle housing folding maintenance ladder and a mine car. Two opposing maintenance ladder mounting seats are connected to the inner wall of the drum near the rear axle door. The top two ends of the upper maintenance ladder are hinged to the corresponding maintenance ladder mounting seats, allowing the upper maintenance ladder to rotate around the hinge point. The top of the lower maintenance ladder is hinged to the bottom of the upper maintenance ladder, allowing the lower maintenance ladder to rotate around the hinge point. After rotating upwards, the lower maintenance ladder fits against the upper maintenance body, and then continues to rotate upwards, allowing both the upper and lower maintenance ladders to pass through the rear axle door and enter the drum. A first fastening component is configured to fix and release the lower maintenance ladder and the upper maintenance body after they fit together. A second fastening component is configured to fix and release the upper maintenance ladder and the maintenance ladder mounting seats located inside the drum. This utility model has the advantages of ingenious design, simple structure, strong applicability, and durability.

The utility model belongs to the field of leather shoes, in particular to a pair of locking anti-skidding wear-resistant leather shoes, which is used for solving the problems that the traditional leather shoes are inconvenient to put on and take off, the anti-skidding performance is insufficient, the heels cannot be independently replaced and the heels are easily rubbed, the leather shoes comprise soles, the heels and vamps, and the heels are detachably connected with the soles through stainless steel fixing screws. The bottom surfaces of the sole and the heel are respectively provided with a plurality of groups of anti-skid grooves which are distributed in a staggered manner, the vamp is provided with strip-shaped holes so as to improve the wearing and taking-off convenience, a detachable insole with an anti-abrasion pad is arranged in the shoe, the sole is made of blended rubber added with anti-abrasion particles, and the heel is made of a high-hardness TPU material and is sprayed with a ceramic coating. The walking safety is improved through the staggered anti-skid structures, the use cost is reduced through the detachable heels, the wearing comfort is improved through the elastic openings and the anti-abrasion pad structures, and the anti-skid shoes are suitable for daily walking and various ground environments.

This invention belongs to the technical field of tobacco processing equipment, and provides a modified nylon idler roller for a tobacco processing belt conveyor and its manufacturing process. The idler roller includes a roller shaft, a three-section roller, a positioning sleeve, and a sealing end cap. The three-section roller is integrally formed from modified nylon material, and has an axially extending sleeve groove inside, with friction texture on its outer circumference. The positioning sleeve is embedded in the sleeve groove, and its outer ring has a guide rail that cooperates with the sleeve groove. The three-section roller and the positioning sleeve are axially limited by a snap-fit ​​structure. A brass sleeve is fixed to the inner ring of the positioning sleeve, and the brass sleeve has a bearing housing cavity that rotatably cooperates with the reduced diameter shaft section. The outer wall of the brass sleeve slides in contact with the inner wall of the sleeve groove. The sealing end cap is fixedly connected to the end of the three-section roller and together with the roller shaft and the positioning sleeve, forms a closed chamber. This invention enables oil-free, low-resistance, and sealed rotation, and is suitable for the harsh working conditions of tobacco processing workshops.

The utility model relates to the technical field of culvert reinforcement, and discloses an underground culvert reinforcement and repair structure which comprises an arch-shaped module, a reinforcement mechanism is arranged on the outer wall of the arch-shaped module and used for supporting the top of a culvert, a foundation mechanism is arranged on the top of the arch-shaped module and used for supporting the whole structure, and the reinforcement mechanism is arranged on the arch-shaped module. The reinforcing mechanism comprises a damping assembly, the damping assembly is arranged at the top of the arched module, a connecting assembly is arranged at the top of the damping assembly, a bottom assembly is arranged at the bottom of the arched module, a structural assembly is arranged at the bottom of the bottom assembly, and a convex column is fixedly connected to the bottom of the arched module. According to the structure, loads are dispersed through the arch, the anchor rods are driven into a culvert soil body, the loads can be borne, the structure can be stabilized, the problem of steel corrosion is solved through the alloy grids, and the overall anti-cracking performance of the structure is improved by arranging the carbon fiber rods in the longitudinal direction of the bottom of the water-resisting layer.

The utility model discloses a device for connecting stirring paddle belongs to stirring equipment connecting structure technical field, the utility model discloses to solve the problem that the existing mixer connecting mode exists structure complex, cleaning is difficult, is easy to rust and stirring rod is easy to come off, mainly adopts the structure of chuck and nut cooperation, connects motor shaft through hollow prism, and hollow screw rod inserts the stirring rod, and realizes clamping fixation by nut screwing. The utility model can realize the stable connection of stirring paddle, and the operation is convenient, and is easy to clean, reduces the pollution risk, is applicable to the stirring scene of higher cleanliness requirement.

The present invention discloses a hot melt bonding device and a marking system. The hot melt bonding device is used to heat plastic materials and bond the heated plastic materials to the surface of parts. The hot melt bonding device includes a positioning lifting member for positioning and lifting parts and a resistance heater connected to the positioning lifting member. The resistance heater is used to heat and convey the plastic materials. The positioning lifting member includes a support plate for supporting and fixing the parts. Both ends of the support plate are connected to a transmission frame. The transmission frame is connected to a motor. The motor drives the support plate to lift and position the parts through the transmission frame. The hot melt bonding device disclosed in the present invention can match the parts with the plastic materials, reduce the drilling and riveting processes of the parts, and save the labels and rivets. It well protects the surface of the casting shell and its anti-rust coating, and avoids the subsequent rust problem.

The utility model relates to domestic appliance technical field, the utility model provides a door subassembly and cooking equipment, door subassembly is used for cooking equipment, and cooking equipment includes cooking cavity, and door subassembly includes: door frame, door frame is used for fixing door body subassembly, and door frame sets up on the side of door body subassembly away from cooking cavity, door body subassembly, door body subassembly includes door body and apron, and apron is welded on the side of door body body near cooking cavity, sets up welding groove on the door body body, and apron is stainless steel material, sets up welding pin on apron, and welding pin embeds inside welding groove, sets up apron and sealing structure on the side of welding groove near cooking cavity, compared with prior art, a door subassembly, effectively solve the problem of rusting of welding position.

The invention discloses a material for preparing a carrier roller body, the carrier roller body and a preparation method of the carrier roller body. The material for preparing the carrier roller body comprises the following raw materials in parts by weight: 40-60 parts of matrix resin; 40 to 60 parts of matrix granules; 10 to 20 parts of natural fiber; 1-3 parts of functional resin; 0.1 to 0.3 part of a plasticizer; 5-7 parts of an impact modifier; 0.6-1 part of a heat stabilizer; 0.6-1 part of a weather-proof auxiliary agent; the matrix resin is one or more of PVC (polyvinyl chloride), PP (polypropylene) and PU (polyurethane); the matrix aggregates are any one or more of carbon black, molybdenum disulfide, nano silicon dioxide and ultra-high molecular weight polyethylene; the functional resin is any one or two of chlorinated polyvinyl chloride and high-density polyethylene; the carrier roller body prepared from the material has the characteristics of excellent wear resistance, impact resistance, inherent flame retardance, shock absorption and sound absorption.

The application discloses a high-efficiency primary and secondary fusion pole-mounted circuit breaker sealing and insulating structure based on capacitor power taking, and particularly relates to the field of electrical equipment, which comprises a mechanism box, the top of the mechanism box is provided with a pole, one side of the mechanism box is provided with an opening and closing switch and an energy storage switch, the outer side of the opening and closing switch is provided with an insulating sealing assembly, the insulating sealing assembly is composed of a dynamic sealing assembly and a fixed shielding assembly, the dynamic sealing assembly comprises a protective shell fixedly connected to one side of the mechanism box, the side of the protective shell close to the mechanism box is fixedly connected with an upper sealing side plate, the inner walls of the protective shell and the upper sealing side plate are fixedly connected with a sealing frame, and the inner side of the sealing frame is fixedly connected with a rubber elastic capsule. The insulating sealing assembly can seal and separate the movable part of the switch, ensures the operation and rotation of the switch in a sealed and insulated state, avoids the occurrence of rust, and ensures that the insulating sealing performance is at a normal level in long-term use.

This invention discloses a transmission gear shaft for a planting tray conveying system, belonging to the technical field of transportation equipment. It aims to solve the problems of noise generated by gear disk displacement under force and gear disk corrosion caused by condensation. The transmission gear shaft includes a central shaft, a first spacer, a second spacer, a gear disk, and a hollow shaft. The first and second spacers are fixed to the central shaft, which can limit the displacement of the gear disk under force and reduce noise. The first spacer, the second spacer, and the through holes on the gear disk are coaxial. The clearance fit between the hollow shaft and the central shaft forms an air duct. After the air duct is connected to a fan, it can accelerate the evaporation of condensation on the surface of the central shaft, prevent corrosion at the connection between the gear disk and the central shaft, extend the service life of components, and ensure the stable operation of the planting tray conveying system.

This invention discloses an aluminum alloy door and window processing cleaning and drying device, including a base plate. A transmission mechanism is arranged on the outside of the base plate. The transmission mechanism includes a drive motor, the outer surface of which is fixedly connected to the outer surface of the base plate. A turntable is fixedly connected to the output end of the drive motor. A feeding component and a clamping component are respectively arranged on the outside of the turntable. A rotating rod is rotatably connected through the body of the turntable. An oil seal sleeve is fitted on the outer surface of the rotating rod, and the outer surface of the oil seal sleeve is fixedly connected to the outer surface of the turntable. A carrier plate is fixedly connected to one end of the rotating rod. This invention relates to the field of door and window technology and solves the problems of poor transmission effect for aluminum alloy doors and windows in existing cleaning and drying devices, resulting in poor cleaning effect. At the same time, liquid water easily corrodes the internal structure during cleaning, affecting drying efficiency, effect, and power consumption.

This application discloses a combiner support, belonging to the field of combiners. It includes: a mounting base, with threaded mounting parts provided on the four sides of the center of the mounting base, and an adaptation adjustment mechanism at the bottom of the mounting base. The adaptation adjustment mechanism includes a first adjustment component and a mounting plate, with the combiner body mounted on top of the mounting plate. The beneficial effect of this application is that it provides a combiner support where workers can pre-install the mounting base stably on the work surface using the threaded structure of the threaded mounting parts. Then, using multiple sets of bolts in the adaptation installation mechanism, the combiner body is assembled onto the mounting plate in the middle of the upper support of the mounting base. When installation is performed or the angle of the combiner body needs to be changed due to line changes, workers can directly pull the lever to displace the guide plate frame and compress the first return spring. The guide plate frame has toothed blocks on its inner end face that mesh and lock with the gears around the rotating column.

The utility model relates to electric kettle technical field, specifically disclose a kind of electric kettle cover, comprising: upper cover;Lower cover, lower cover is equipped with card tongue;Support, support includes the upper cover installation part and lower cover installation part being connected, upper cover installation part is connected with upper cover, lower cover installation part is projected downward to be connected with lower cover, the connecting place of upper cover installation part and lower cover installation part is equipped with the installation groove for the embedding of lower cover, the bottom wall of installation groove is equipped with the joint slot, the sidewall of joint slot is equipped with the first buckle of cooperation joint with card tongue.This utility model solves the problem that the inner cover of existing kettle cover and kettle cover body are connected by screw, in the process of daily use, water vapor can cause screw rust, affect the normal use of electric kettle.

The present application relates to a kind of enamel-like coating layer with combined coating and its preparation method and construction method.It includes primer, middle coating and top coating;The primer includes 28-32% second resin emulsion, 24.8-29.3% water, 5.2-5.7% third auxiliary agent, first color filler makes up the rest by weight percentage;The middle coating includes binder and powder;The binder includes 9.25-44.25% water, 10.75-20.75% first auxiliary agent, first resin emulsion makes up the rest by weight percentage;The powder includes 15-25% talcum powder and 75-85% calcium carbonate by weight percentage.Enamel steel plate decorative effect with cloud and water shape can be formed on the decorative surface, and it has strong decoration feeling, simple construction, low cost, rich color, long-lasting decorative effect and low maintenance cost.

The invention discloses a GFRP bar-seawater sea sand shell concrete beam-column joint sub-member and a construction method, and belongs to the technical field of structural members, GFRP bars are formed by using fibers as reinforcement bodies and resin as a matrix through an arranged stress mechanism, the GFRP bars have the characteristic of corrosion resistance, the GFRP bars are used for replacing steel bars, and the construction cost is reduced. The steel bar corrosion problem in the corrosion environment can be effectively solved, meanwhile, seawater sea sand shell concrete covering the GFRP steel bars is poured on the two sides of the section steel, the section steel is made of weathering steel with good ductility so as to make up for the brittleness of the seawater sea sand shell concrete, meanwhile, the GFRP steel bars in the section steel serve as prestressed steel bars, and after the section steel deforms due to an earthquake, the section steel is not prone to deformation. The GFRP reinforcing steel bars can provide secondary defense for seismic resistance and progressive collapse resistance, the high-strength mechanical property of the GFRP reinforcing steel bars is fully exerted, and the mechanical property and strength of the whole joint are improved.

The present invention discloses a post-tensioning prestressed anchoring method based on UHPC, comprising the following steps: step S1, setting prestressed tendons, rubber plugs, temporary steel frames, temporary anchors, jacks, UHPC in the anchoring area, UHPC in the sealing anchoring area and cement slurry; step S2, pre-setting corrugated pipes, conical casings, grouting holes, reserved channels and air outlets when pouring beams; step S3, inserting prestressed tendons into the expected channels, placing rubber plugs at the bottom of the conical casing; step S4, setting the temporary steel frame on the conical casing; step S5, placing the temporary steel frame on the conical casing; step S6, placing the temporary steel frame on the conical casing; step S7, placing the temporary steel frame on the conical casing; step S8, placing the temporary steel frame on the conical casing; step S9, placing the temporary steel frame on the conical casing; step S10, placing the temporary steel frame on the conical casing; step S11, placing the temporary steel frame on the conical casing; step S12, placing the temporary steel frame on the conical casing; step S13, placing the temporary steel frame on the conical casing; step S14, placing the temporary steel frame on the conical casing; step S15, placing the temporary steel frame on the conical casing; step S16, placing the temporary steel frame on the conical casing; step S17, placing the temporary steel frame on the conical casing; step S18, placing the temporary steel frame on the conical casing; step S19, placing the temporary steel frame on the conical casing; step S20, placing the temporary steel frame on the conical casing; step S21, placing the temporary steel frame on the conical casing; step S22, placing the temporary steel frame on the conical casing; step S23, placing the temporary steel frame on the conical casing; step S24, placing the temporary steel frame on the conical casing; step S25, placing the temporary steel frame on the conical casing; step S26, placing the temporary steel frame on the conical casing; step On the casing, temporary anchors and jacks are set on the temporary steel frame. After the tensioning is completed, the jacks are removed, and the temporary anchors on the temporary steel frame are temporarily anchored. Step S5, the UHPC in the anchoring area is cast in the conical casing after the tensioning is completed. Step S6, when the UHPC in the anchoring area reaches the predetermined strength, the tension is loosened and the excess prestressed tendons are cut off, and the UHPC in the anchoring area is cast in the reserved positions at the anchoring ends on both sides for anchoring. Step S7, cement slurry is poured into the corrugated pipe through the grouting holes and the air outlet holes.

The utility model provides a ball bearing for a high-pressure spray cleaning machine, and relates to the field of bearings. The inner ring is movably mounted in the outer ring, an annular gap with a certain space is reserved between the inner ring and the outer ring, a plurality of balls are movably mounted in the gap, and the balls are positioned through the retainer; according to the utility model, through the combined design of the positioning cylinder and the insertion rod, the spring is matched to apply elastic force to the sliding boss, so that the first shielding cover and the second shielding cover stably cover the first step surface and the second step surface at the two ends; meanwhile, the first sealing ring and the second sealing ring play a sealing role to tightly block the gap, so that water vapor is effectively prevented from invading into the bearing in the service process, and the problem of corrosion of the bearing is avoided; the ball bearing solves the problems that an existing ball bearing for the high-pressure spray cleaning machine is generally provided with a sealing structure for the purposes of water resistance and corrosion resistance, but lubricating oil is inconvenient to inject for lubrication after sealing.

The utility model is suitable for the technical field of metal guardrails, and provides a rust-proof metal guardrail which comprises symmetrically arranged guardrail columns. The metal cross rods and the metal assembly rods are assembled on the fence columns; the plurality of plug-in type metal vertical rods are arranged on the metal assembly rod, and the bottom ends of the plurality of metal vertical rods are fixedly connected with the metal cross rod; the detachable pointed cone is assembled at the top end of the metal vertical rod; the detachable shielding shell is arranged on the fence column and used for shielding sun and rain; and the assembling mechanism is arranged on the fence columns and is used for supporting and assembling the shielding shell. According to the anti-rust metal guardrail provided by the scheme, by optimizing the design and adopting various anti-rust measures, the problem of corrosion of the thin cross rods and the thin vertical rods in the metal guardrail is solved, the service life of the guardrail is remarkably prolonged, and the stability of the guardrail is remarkably improved.