31 results about "Arcuate shape" patented technology

This utility model relates to the field of dustproof technology, and provides a dustproof structure for the driven wheel of a packaging clamping and shaping machine. It includes a dustproof cover sleeved on a rotating shaft, which mates with the arc-shaped sealing surfaces at both ends of the rotating shaft. Sealing oil is filled between the dustproof cover and the rotating shaft. Annular grooves for storing the sealing oil are formed on both the arc-shaped sealing surfaces of the dustproof cover and the rotating shaft. Through this dual design of the arc-shaped sealing surface mating and the sealing oil filling the annular grooves, comprehensive protection of the rotating shaft is achieved, effectively reducing the risk of jamming or wear caused by dust intrusion, extending the service life of the rotating shaft, reducing downtime maintenance frequency, and ensuring continuous and stable operation of the production line.

A method for forming a tubular element used as a longitudinal section of a strut in a truss structure for a floating offshore support structure for wind turbines, the method comprising: providing four elongated flat steel plates, each extending longitudinally and having two opposing lateral edges; deforming each plate such that its cross-sectional shape smoothly transitions between a straight shape and an arcuate shape along the longitudinal direction; and forming the tubular element by interconnecting the four deformed plates along their lateral edges. The interconnecting plates each form a corresponding circumferential section of the tubular element, wherein the cross-sectional shape of the tubular element smoothly transitions from a circular shape to a rectangular shape along the longitudinal direction. The tubular element can connect the strut to another cylindrical tubular element and another portion of the floating offshore support structure.

The utility model provides a kind of combined flat ingot crystallizer constituted by arc working copper plate, including mirror image symmetry according to thickness middle division flat ingot crystallizer half module I and flat ingot crystallizer half module II.The inner cavity of flat ingot crystallizer half module I and flat ingot crystallizer half module II is composed of arc working copper plate, arc working copper plate is composed of 3 different curved surface arc working copper plate, arc working copper plate is formed by cold bending, the two ends of arc working copper plate are composed of the arc with section curvature radius R, arc length is, and the middle working copper plate is arc with radius 5 times.The utility model fundamentally changes the uneven temperature field distribution of the corner area of right-angle flat ingot crystallizer during electroslag remelting, thereby improving product quality, and can improve the deformation resistance of arc working copper plate of flat ingot crystallizer, greatly extend the service life of working copper plate, and also has the advantages of reducing electroslag remelting power consumption.

The utility model provides a hardware product electroplating multifunctional clamp, including main connecting plate, one side of main connecting plate is fixedly connected with top motor, the output shaft of top motor is fixedly connected with main drive link, and one end of main drive link is fixedly connected with inner support link. The utility model discloses through the agitation of side extension link, the mobility of electroplating solution has been improved, and the side arc -shaped frame will be driven to agitate when side extension link moves, and the contact area of the side arc -shaped frame of bow -shaped will increase with electroplating solution, and utilize the stability of electroplating solution in the stirring process that is increased to the bottom agitator plate of vertical state, has reduced the impact that produces to electroplating solution, has improved the evenness of electroplating quality, and the fixed inner frame of rotation will drive transmission motor along the outside of clamping frame and blow to each surface of clamp and hardware spare, has reduced the airflow dead angle that produces in the process of auxiliary drying and blowing away electroplating solution, has improved the effect of auxiliary drying.

This utility model relates to the technical field of hot-dip galvanizing tanks for electric power ferrosilicon, and discloses a pickling tank for hot-dip galvanizing of electric power ferrosilicon accessories. The tank includes a pickling tank shell, with a drain pipe fixedly connected to the output end of the shell. A constraint groove is formed at the end of the drain pipe away from the shell. A guide pipe is movably installed inside the constraint groove. A mounting block is symmetrically fixedly connected to the side of the guide pipe, and an elastic block (arc-shaped) is movably installed on the mounting block. A constraint block is fixedly connected to the side of the drain pipe corresponding to the position of the mounting block. In this utility model, the guide pipe is inserted into the constraint groove, and the elastic block is rotated around the mounting block to engage with the hook on the elastic block inside the constraint block. The constraint device then presses the center position of the side of the elastic block, putting it in a taut state. The elastic block exerts a force on the constraint block and the mounting block to lock the guide pipe in place, completing the installation of the drain pipe and improving replacement efficiency after maintenance.

The attachment mechanism includes: a hook-shaped end portion; a hook-shaped portion extending in an arcuate shape from the hook-shaped end portion; a hook-shaped tip defining the end of the hook-shaped portion, the hook-shaped tip extending toward a first direction, wherein the hook-shaped tip, the hook-shaped portion, and the hook-shaped tip define a receiving opening; a first protrusion extending longitudinally toward a second direction; and a second protrusion extending longitudinally parallel to the first protrusion, the first protrusion being connected to the second protrusion via an intermediate portion, wherein the first protrusion, the second protrusion, and the intermediate portion define a cavity.

This utility model discloses a vibration-damping base for drilling, relating to the field of drilling machine technology. It includes a base, a sliding plate, and a vibration-damping mechanism. The sliding plate is slidably connected to the inner wall of the base on both sides, and a slide rail is fixedly connected to the top of the sliding plate. The vibration-damping mechanism is located at the bottom of the inner wall of the base and includes a fixing plate fixed to the bottom of the base. The fixing plate has a pair of U-bolts, through which at least three layers of elastic metal sheets are fixedly installed. The elastic metal sheets are arranged in an arc shape and stacked sequentially. The top elastic metal sheet has mounting portions at both ends, which are connected to the bottom of the sliding plate. This achieves vibration damping to improve the overall vibration damping performance.

The application belongs to the technical field of coke quenching equipment in the coking industry, and discloses a coke pot bottom gate lining plate structure of fired product refractory, which has an external frame formed by a metal hoop and a transverse metal baffle; an internal frame is arranged in the external frame; the internal frame and the external frame are filled with refractory fiber cotton; the internal frame is a three-layer structure arranged in an up-down manner; the first layer is a bottom gate bottom plate, which is arc-shaped; the transverse metal baffle is welded in the chord direction of the arc-shaped bottom gate bottom plate; the bottom gate bottom plate is provided with regularly distributed bolt holes; the second layer is a sandwich frame which is a core workpiece; and the third layer is a fired product refractory brick; the left-right direction of the fired product refractory brick is provided with a "Z"-shaped staggered table. The structure is beneficial to the replacement and repair of the fired product refractory, and the small number of brick types greatly reduces the cost. Meanwhile, the problem that the refractory is always crushed by the pot body as the outer edge of the bottom gate is solved.

An applicator (30) for fitting a tubular cover (12) over a distal end of a shaft (50) of a medical device is provided. The applicator (30) comprises a flexible sheet which is deformable into an arcuate shape, wherein at least part of the applicator is insertable into a bore (18) defined by a tubular cover (12) such that the applicator (30) defines a guide channel (46) for receiving a distal end of a shaft (50) of a medical device.

The application belongs to the technical field of coating devices, and particularly relates to a nozzle, in particular to a coating device for OLED protective film production and a working method thereof; wherein the coating device for OLED protective film production comprises a rack, a driving roller for driving the movement of a base film, a transition roller for guiding the movement direction of the base film, a coating head which is slidingly arranged on the transition roller and is parallel to the transition roller, a containing cavity is formed on one side of the coating head close to the transition roller, an elastic sheet is slidingly arranged in the containing cavity and is in an initial state of an arc shape, and a plurality of nozzles are uniformly distributed in the containing cavity and penetrate through the elastic sheet; wherein in the initial state, the coating head is away from the transition roller, the elastic sheet is in an arc shape, and each nozzle is retracted in the elastic sheet; during coating, the coating head moves towards the transition roller, the elastic sheet is deformed by being extruded by the base film on the outer wall of the transition roller, and the two ends of the elastic sheet expand outward to tension the base film from the width direction.

A cushion for an article of footwear includes a first barrier element having a columnar body extending between a first end and a second end and a second barrier element attached to the first barrier element at a peripheral seam disposed at the second end of the first barrier element and cooperating with the first barrier element to define an interior void, the second barrier element having an arcuate surface extending in a direction away from the first barrier element and away from the peripheral seam.

A special straightening fixture for bow beams includes a straightening table (1), on which are respectively provided a set of support limiting devices (2) for supporting and fixing the bow beam, a set of reference point positioning blocks (3) for positioning the bow beam, a set of straightening detection pins (4) for verifying the bow beam, a side straightening hydraulic cylinder (5) for straightening the bow beam in the horizontal direction, a pair of top straightening hydraulic cylinders (6) for straightening the bow beam in the vertical direction, and a pair of fastening screws (7) for locking the bow beam. The advantages of this utility model are: by analyzing the structure, the deformed parts are found, and then the extension and retraction of the hydraulic cylinders are used to correct the deformed parts of the bow beam. This can greatly improve the blank qualification rate of the product, avoid the waste of processing and casting resources due to product scrap caused by deformation, and greatly save costs.

Rotary printing machine with a device for treating substrates (1) comprising a film application unit (85) with a transport cylinder (3.1) for transporting arc-shaped substrates, with a bow conveyor device that interacts with the transport cylinder (3.1), with a film feeder (86) which has means for guiding film sections, with a coating device (88) associated with the transport cylinder (3.1) for supplying an adhesion promoter to the substrate (1), wherein the film feed (86) has a storage unit (93) for receiving a stack formed from film sections and a singulation device which singulates film sections from the stack formed from film sections and accelerates them to the circumferential speed of the transport cylinder (3.1), wherein the film feed (86) comprises a feed cylinder (84) which forms a press gap with the transport cylinder (3.1) and wherein the transport cylinder (3.1) and the sheet conveying device are supported by a base module (100) and the feed cylinder (84) and the film feed (86) are supported by an attachment module, wherein the base module (100) and the attachment module have independent frame walls and are detachably connected to each other.

This utility model provides a cable-passing device for a tied-arch bridge, including an arch bridge tie rod, a bridge deck, an upper chord of the arch rib, and a lower chord of the arch rib. The arch bridge tie rod is horizontally positioned at the bottom, and the bridge deck is fixedly positioned on the upper part of the arch bridge tie rod. The upper and lower chords of the arch rib are parallel to each other and obliquely positioned on the bridge deck, with the upper and lower chords arranged vertically. It also includes an arch rib web member fixedly connected between the upper and lower chords, with a cable-passing channel extending through the upper, lower, and web members. The device further includes a cable body, a first adjustment mechanism, a second adjustment mechanism, and a third adjustment mechanism. By utilizing the flexibility of the cable body itself to bend it into an arc shape, and through continuous fine-tuning between multiple mechanisms, the position of the upper anchor head of the cable and the lower end of the cable-passing channel is adjusted to ensure that the upper anchor head of the cable passes vertically through the cable-passing channel from bottom to top, ultimately allowing the upper anchor head of the cable to pass through the upper end of the cable-passing channel.

This invention provides an active air intake grille, belonging to the field of automotive component technology, comprising: a grille body, the grille body having an arcuate structure; a flexible shaft, the flexible shaft being bent wholly or partially according to the arcuate shape of the grille body, and the flexible shaft being rotatably mounted on the grille body; a blade assembly, the blade assembly including at least two grille blades, each of the grille blades being arranged according to the arcuate shape of the grille body, each of the grille blades being connected to the flexible shaft, and the flexible shaft driving each of the grille blades to rotate when rotated; it also relates to an automobile, including an active air intake grille. The beneficial effect of this invention is that, based on setting the grille body as an arcuate structure, the flexible shaft can synchronously drive each grille blade arranged in an arcuate plane on the grille body to rotate, thereby achieving the purpose of non-linear transmission.

An insulated pipe hanger support made from sheet metal is formed into an arcuate shape with an inside surface and an oppositely located outside surface. Centrally located aperture and slots allow for different mounting options. The aperture allows for a bolt, screw, rivet, or other fastener to secure the support to another structure. The slots are located on either side of the aperture and allow for a strap, cable tie, or other device to wrap around to secure the support to another structure, such as a clevis hanger, channel, or other device. The support may have flared ends and / or ribs for additional rigidity, handling convenience, and / or to protect the pipe insulation from damage.

An adjustable wrench includes a first body and a second body connected with the first body. The first body is provided with a first mounting portion, a second mounting portion, a third mounting portion, a first operation end, and a first rotation portion. The first mounting portion includes two first faces, two second faces, a third face, two fourth faces, and two end portions. The third face has an arcuate shape. Each of the two second faces is between one of the two first faces and the third face. The third face connects the two second faces. Each of the two end portions is provided on a corner of one of the two first faces. In a two-dimensional view, the third face constructs a first circle, an axis, and a first radius.

This invention relates to a flexible track tensioning test fixture and method for measuring the tensioning stroke of a flexible track. The test fixture includes a first component and a second component. The first component includes a first slide rod and a first support rod; the second component includes a second slide rod and a second support rod. The first and second support rods support the two ends of the flexible track, and the first support rod has a first support surface with an arcuate shape, and the second support rod has a second support surface with an arcuate shape. The test fixture also includes an adjusting component and a blocking component. When the first and second slide rods are connected, one end of the adjusting component abuts against the blocking component. By rotating the adjusting component, the first and second slide rods are driven to slide away from each other to tension the flexible track. Using the test fixture of this invention to test the tensioning stroke of a flexible track can obtain test data under a fixed bending radius, and the data is more reliable and accurate, saving time and labor for manual installation of the flexible track mechanism.

An arch-bottom end cap, by setting the cross-sectional shape of the end cap body to an arch shape, allows the end cap body to better withstand pressure from all directions, enhancing the structural strength of the end cap. The design of the annular concave portion not only optimizes the hydrodynamic performance of the end cap, reducing fluid eddies and resistance at the end cap, but also improves the overall efficiency of the equipment. The central convex portion further enhances the rigidity of the end cap, enabling it to remain stable under high-pressure environments. Furthermore, the continuous arc surface structure between the annular concave portion and the central convex portion not only makes the end cap more aesthetically pleasing but also improves its corrosion resistance and wear resistance, extending the service life of the equipment. In addition, the discharge port in this design is located on the annular concave portion, allowing materials to flow more smoothly from the inside of the end cap, avoiding material accumulation and blockage at the end cap, further improving the operating efficiency and stability of the equipment.

The invention relates to a casing support (01) for supporting a casing (31). The casing support (01) has a lattice-type design and comprises: at least two posts (02) arranged on both sides such that said posts are perpendicular to the casing (31) to be supported; and at least one transverse strut (03) for connecting the posts (02). The casing (31) is supported by means of a supporting element which extends between two posts (02). The supporting element is fastened, at each of its two ends, to a respective post head (12), such that the supporting element can be raised by means of a lifting device (11) which (11) is arranged on the post head (12). According to the invention, it is first provided that the supporting element is formed by a rigid bow-type support (05). An essential feature of the invention is that the lifting device (11) comprises a carrying element (14), which (14) is fastened to the post head (12) and on which the bow-type support (05) lies, and a lifting piston (13) which (13) is arranged between the carrying element (14) and the post head (12).

The present disclosure relates to de-molding of large composite parts for aircraft. Systems and methods for de-molding a composite part from a mandrel are provided. The method includes the steps of mechanically coupling a first arm of an extraction tool to a first arcuate portion of a composite part that has hardened onto a mandrel, mechanically coupling a second arm of the extraction tool to a second arcuate portion of the composite part, and decoupling the composite part from the mandrel by repeatedly performing the following operations until the composite part no longer contacts the mandrel: elastically straining the first arcuate portion of the composite part via the first arm; and elastically straining the second arcuate portion of the composite part via the second arm.

The application discloses a tool for replacing independent springs of a pantograph spring box, which comprises a bow-shaped body and an adjusting part; the adjusting part comprises a pushing screw rod, a force-bearing guard plate and a bow head; the bow head is arranged at one end of the bow-shaped body and is used for being hung on a transverse screw rod of the spring box; the pushing screw rod is rotationally arranged at the other end of the bow-shaped body, and the force-bearing guard plate is rotationally connected with the pushing screw rod; and the force-bearing guard plate is used for being in contact with a mounting seat of the spring box. The application can solve the problems of waste of manpower and material resources, inconvenience in operation, low efficiency and high safety risk in replacing the independent tension springs of the pantograph spring box.

The application discloses a food processing conveying device with a fresh-keeping function and relates to the technical field of food conveying. The conveying device comprises a conveying frame, two groups of conveying mechanisms arranged on the inner side of the conveying frame and leaving a gap between the two groups of conveying mechanisms, and filter screen plates. The filter screen plates are arranged in multiple groups, the multiple groups of filter screen plates are arranged on the top of the conveying mechanisms, each group of filter screen plates is provided with two filter screen plates, the top of each filter screen plate is provided with an inclined surface, and each group of filter screen plates is combined to form a concave shape. The T-shaped seat and the connecting rod are driven to move by the rolling of the rollers along the arcuate blocks, the energy storage and reset of the torsion spring are matched, the filter screen plates are periodically converted between the concave shape and the arcuate shape, the materials are subjected to reciprocating sliding and slight tumbling, the continuous contact between the materials and the bearing surface is fundamentally broken, food adhesion is effectively avoided, the structure is stable and reliable, and the conveying device is suitable for complex food processing environments.

The utility model belongs to the technical field of lamps and lanterns installation, provide a kind of anti-type lamps and lanterns installation structure, including the I-shaped frame for being fixedly installed in the ceiling wall and the movable hanging plate for connecting lamps and lanterns, the left and right sides end of I-shaped frame are respectively fixedly provided with connecting strip part, the front and rear ends of each connecting strip part are all provided with the elastic card member bent upwards;The installation surface both sides of movable hanging plate are fixedly provided with the card fastener corresponding with the position of elastic card member;Elastic card member includes the L-shaped plate part of the upper end with the end of connecting strip part connection, the arcuate portion formed by the outward bending extension from the lower end of L-shaped plate part and the straight plate part extended downward from the end of arcuate portion;In assembled state, straight plate part and arcuate portion pass through card fastener, and the lower part of L-shaped plate part is clamped with the upper part of card fastener.The utility model effectively avoids the technical problem existing in prior art.

This application discloses a deformable rotating umbrella handle, belonging to the field of umbrella handle technology. Key technical features include a coaxially rotatably connected arc-shaped base and arc-shaped rotating cover. The outer wall of the arc-shaped base is close to the inner wall of the arc-shaped rotating cover. Both have an arc-shaped cross-section along their axial direction, forming a hollow cylindrical structure during relative rotation. The arc-shaped base contains a rotating device for mounting and driving the umbrella shaft. The umbrella shaft can rotate and adjust relative to the arc-shaped base within a range of 0° to 90°. The maximum outer diameter of the umbrella shaft is smaller than the chord length corresponding to the axial cross-section of the arc-shaped base and the arc-shaped rotating cover. A rotating component for achieving relative rotation and a limiting structure for fixing the relative angle between them at a set position are provided between the arc-shaped base and the arc-shaped rotating cover. This application offers good grip comfort and convenient storage.

The utility model discloses an anti-deformation sealing ring, including the body part and flat pad part of uniform annular coaxial setting, the cross section of body part is arcuate arch shape setting, the cross section of flat pad part is rectangle setting, and flat pad part and body part are integrally formed setting, and the chord side surface of body part is the annular plane matched with flat pad part, and body part includes the inner rubber ring layer, first intermediate reinforcing ring layer and outer rubber ring layer that are equipped with in proper order from inside to outside, and the pressure resistance of inner rubber ring layer and outer rubber ring layer is all lower than the pressure resistance of first intermediate reinforcing ring layer, through first intermediate reinforcing ring layer, the sealing ring strength is increased, effectively guarantee sealing under pressure, and body part deforms evenly and does not produce local too big deformation, avoids the rupture of sealing ring, guarantees the good sealing effect, and through the combination of integrally formed flat pad part and body part, the contact surface when the sealing ring is under pressure is increased, and the pressure is evenly dispersed, and the whole has the advantages of good sealing property, high anti-deformation ability and long service life.

This invention relates to the field of MEMS optical scanning device technology, and discloses a silicon-based MEMS micromirror structure and its molding method. The structure includes a fixed frame, a movable mirror, and an elastic support structure. A support skeleton is provided on the back of the movable mirror. The support skeleton includes a main support rib extending perpendicular to the torsion axis, two side ribs located on either side of the main support rib, a load-bearing plate integrally extended from the end of the main support rib for fixing a central magnet, and perforated grooves formed between the main support rib and side ribs one and two, respectively, extending through the thickness direction. The inner contours of side ribs one and two are arc-shaped or bow-shaped, concave towards the main support rib. The molding method uses the non-optical area on the back as the design domain. Under the constraint of a volume retention rate not exceeding 50%, the main load-bearing path is extracted using the SIMP variable density method, the moving asymptote algorithm, and Helmholtz density filtering. After converting the etching pattern according to the minimum feature size requirement, the support skeleton is integrally molded.