16 results about "Circular segment" patented technology

A holder with a variable receiving opening for beverage containers with different outer diameters for a vehicle is described, wherein the holder (1) has one or more holding devices (4, 4a, 4b) which have several, in particular lamellar, predominantly non-flexible holding elements (14) or crescent-shaped predominantly non-flexible holding elements (24) or circular segment-shaped predominantly non-flexible holding elements (34), and a radial movement of the several holding elements (14, 24, 34) with respect to the central axis (X) of the receiving opening (3) is effected by a mechanical or electromechanical action, in particular by actuator devices (7, 7a, 7b, 17a, 17b), on the several holding devices (4, 4a, 4b) and / or on one or more bearing devices (8, 8a, 8b), and if necessary,Simultaneously, a sliding movement and / or a pivoting movement and / or a rotational movement of the several holding elements (14, 24, 34) around a central axis (X) of the receiving opening (3) is effected to enlarge or reduce the receiving opening (3).

The application discloses a kind of modular narrow terminal assembly, top cover assembly and assembly method, it is related to electric core terminal assembly technical field, the narrow terminal assembly is runway shape, including coaxial by inside to outside setting pole, injection molding insulating part, assembly ring;Assembly ring is successively divided from bottom to top into bottom, middle and top, middle is multiple ladder bending structure and is equipped with the plane of set width at bending portion, and top inner side edge is equipped with multiple vertical direction's through type notch, in the linear section of runway shape, waist round notch is used, circular segment adopts circular notch;Injection molding insulating part is formed by injection molding between pole and assembly ring, and injection molding insulating part is passed over assembly ring top and is collected glue in the plane outside in assembly ring middle, while filling the multiple notch of top;Pole is integrally stamped, and pole body is runway shape and the linear section of runway shape constitutes torsion resistance section.The application can realize the narrow terminal assembly assembly of more optimal overcurrent capacity and structural reliability, simpler process.

Dispenser (1) for dispensing flowable, for example liquid or pasty masses (2), comprising a reservoir (6) for receiving the mass (2), a dispenser pump (3) preferably of a modular design, the dispenser pump (3) having an inlet and an outlet channel (26) and a pump chamber (4) delimited on the inlet and outlet sides by valves (15, 16), and a headpiece (5), the headpiece (5) having a dispensing nozzle (42), a return device (7) formed by a spring being provided between the headpiece (5) and the reservoir (6), the return device (7) being formed by a plastic spring (8), with a lower spring ring (9) and an upper spring ring (10) being arranged substantially coaxially to each other, a plane (E) spanned by the spring rings (9, 10) extending substantially perpendicular to a longitudinal axis (y) of the plastic spring (8),wherein several intermediate rings (39, 39') extending substantially transversely to the longitudinal axis (y) of the plastic spring (8) are formed over the height (h) of the plastic spring (8), wherein the spring rings (9, 10) and the intermediate rings (39, 39') are further connected to each other by spring struts (11) extending between the intermediate rings (39, 39') and between the spring rings (9, 10) and the intermediate rings (39, 39'), characterized in that two successive intermediate rings (39, 39') in the direction (r) of the longitudinal axis (y) are curved in opposite directions, wherein the spring struts (11) have opposing, circular segment-shaped side contours.

The invention relates to a print head (10) for a 3D printer (1), comprising a feed zone (11) with a feeder (12) for a starting material (21) with variable viscosity, a plasticizing zone (14) with a heater (15) and an outlet opening (16) for the liquid phase (22) of the starting material (21), and a conveying device (30) for conveying the starting material (21) from the feed zone (11) to the plasticizing zone (14), wherein the conveying device (30) comprises a piston (31) that can be inserted into the feed zone (11), wherein the piston (31) has a first piston section (5) facing the plasticizing zone (14) with a guide surface (9) through which the piston (31) is guided in a recess (7) of the print head (10), wherein the piston (31) is connected by a positive locking connection of the first piston section (5) is secured against radial rotation by the recess (7) of the printhead (10). It is characterized by the fact that the first piston section (5) and the recess (7) of the print head (10) form a cross-sectional area (F), wherein a maximum diameter (d1) of the cross-sectional area (F) is formed by a circle (2) and the cross-sectional area (F) has rotationally symmetric circular segment-shaped recesses (3).

The utility model discloses a wear-resistant casting blank convenient to stack and store, which relates to the technical field of casting blanks, and comprises a first casting blank, a second casting blank, a third casting blank and a fourth casting blank, the second casting blank is located at the bottom of the first casting blank and movably connected with the first casting blank; and the third casting blank is located at the bottom of the second casting blank and movably connected with the second casting blank. According to the utility model, as the tangent planes of the arc-shaped grooves and the arc-shaped convex blocks are of the arc-shaped structures, the outer diameters of the arc-shaped convex blocks are smaller than the inner diameters of the arc-shaped grooves, and the outer heights of the arc-shaped convex blocks are larger than the inner heights of the arc-shaped grooves, a gap can be formed between two adjacent groups of casting blanks by utilizing the height difference; the contact face between every two adjacent casting blanks is an annular line segment, the contact area between the multiple sets of casting blanks is reserved, certain thrust is applied along the smooth arc face, and then the casting blanks can be moved out from the casting blanks stacked and stored below, so that the casting blanks are more convenient to take.

The application discloses a kind of complex curved surface structural member electric arc fuse additive manufacturing methods based on equal arc length slice, for maximum inclination angle exceeding 45 °, and the outer wall profile can be enclosed by circular segment ring structure piece, the application proposes equal arc length slice forming strategy, is based on the three-dimensional model of part, in the center line section, extract the outer wall profile envelope curve formed by circular segment fitting, along the outer wall envelope curve, the arc length is equal to the segmentation cutting, at each cutting point, construct a radius line through the segmentation point and the center, make the radius line rotate around the center line of part model, form rotation surface, generate additive manufacturing track with this surface as segmentation surface to the part model layering slice, obtain structural member by electric arc fuse additive manufacturing.The method effectively improves the forming stability and material utilization of this kind of complex parts, and significantly shortens production cycle and reduces cost.

A plastic spring (8) with a lower spring ring (9) and an upper spring ring (10) arranged substantially coaxially to each other, wherein a plane (E) spanned by the spring rings (9, 10) extends substantially perpendicular to a longitudinal axis (y) of the plastic spring (8), and wherein several intermediate rings (39, 39') extending substantially transversely to the longitudinal axis (y) of the plastic spring (8) are formed over the height (h) of the plastic spring (8), and wherein the spring rings (9, 10) and the intermediate rings (39, 39') are further connected to each other by spring legs (11) extending between the intermediate rings (39, 39') and between the spring rings (9, 10) and the intermediate rings (39, 39'), characterized in that two successive intermediate rings (39, 39') in the direction (r) of the longitudinal axis (y) are curved in opposite directions, wherein the spring legs (11) have opposing, circular segment-shaped side contours.

A gasket retainer that is absent sharp corners, has apertures of reasonable dimensional tolerance, and may be conveniently made by a variety of manufacturing processes. The retainer is made from thin flat springy material that readily returns to form after slight bending. Representative gasket capturing apertures are of smoothly non-convex outline with major dimension sufficiently large to allow passage of a ring shaped gasket turned on edge and minor dimension sufficiently small to engage, on approximately opposite circular segments that each engage along less than one third of a gasket circumference, a cavity or groove on the outside diameter periphery of the gasket turned flat parallel to the retainer material sheet. Fasteners may be retained by similar apertures.

The utility model discloses a prevent DFN or QFN lead frame structure after cutting has metal residue, including frame substrate, and be located on the frame substrate on a plurality of matrix arrangement's lead frame unit, be equipped with first connecting muscle between two rows of lead frame unit of adjacent, be equipped with second connecting muscle between two columns of lead frame unit of adjacent, the intersection of first connecting muscle and second connecting muscle is connected and forms cross -shaped structure, the both sides lateral wall of one end of first connecting muscle close to cross -shaped structure all recessed has first gap, first gap has first inner lateral wall, the both sides lateral wall of one end of second connecting muscle close to cross -shaped structure all recessed has second gap, second gap has second inner lateral wall, first gap and adjacent second gap form the slot of communicating, form the circular segment between first inner lateral wall and adjacent second inner lateral wall, the utility model discloses when cutting, can cut off the metal material of circular segment completely, avoid metal and remain on product.

The utility model discloses a painting device for automobile modification. The painting device comprises a conveying structure, a clamp structure and a steering structure, wherein the conveying structure is arranged on the upper surface of a bottom plate and is used for conveying an automobile modified part; the clamp structure is used for clamping the automobile modified part; the sliding block is pulled by the connecting rod to continue to slide in the special-shaped groove, in the process that the sliding block slides from the arc section to the linear section, the rotating shaft continues to drive the whole clamp structure to rotate till the sliding block slides to the limit end of the other side of the special-shaped groove, and 180-degree overturning of the clamp structure is achieved. And in the sliding and overturning process of the clamp structure, the painting structure is located on one side of the clamp structure all the time to conduct spraying treatment on the automobile modified part, it is guaranteed that the painting structure is located on one side of the clamp structure all the time to conduct uniform spraying, and the uniformity and efficiency of painting on the two sides of the automobile modified part are greatly improved.

Driving point (1) for a substantially tubular, in particular hollow cylindrical, driven pile (2) with a pile core (3) through which concrete can be injected into the driven pile (2), wherein the driving point (1) can be attached to a pile end (4) of the driven pile (2), wherein at least one first support web (6) with a first bearing surface (7) for an end face (8) of the pile end (4) is arranged on an inner wall (5) of the driving point (1), wherein the driving point (1) has a cavity (9) extending at least partially in the driving direction (E) from the plane of the first bearing surface (7), into which concrete can be injected through the pile core (3) when the driven pile (2) is attached, wherein at least one concrete outlet channel (10) is provided which connects the cavity (9) with an upper edge (11) of the driving point (1), characterized in thatthat at least one first support web (6) is designed in cross-section in relation to the driving direction (E) as a circular segment or circular ring segment, and that a circular arc (12) of the circular segment or circular ring segment extends over 40° to 120°.

This invention relates to the technical field of rotary drilling in hard rock, and discloses a method for detecting obstacles in staged enlargement drilling of hard rock, comprising the following construction steps: 1) forming a pile hole with a casing inside; 2) dividing the casing into multiple circular segments evenly and numbering them; 3) using a cutting tooth cutting drill bit against the inner wall of the casing to sequentially probe the multiple circular segments; during the probing process, the cutting tooth cutting drill bit is lowered to the bottom of the pile hole and rotated sequentially along the multiple circular segments without advancing a diameter to determine the planar position of the obstacle; after determining the planar position of the obstacle, the cutting tooth cutting drill bit is lowered from top to bottom from the pile hole until it abuts against the obstacle from top to bottom to determine the vertical position of the obstacle; based on the planar and vertical positions of the obstacle, the spatial position of the obstacle is determined. The method is convenient to operate and has high detection efficiency.