15 results about "Linear section" patented technology

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.

Embodiments described herein are generally directed to an annular seal including: an annular body defining a cross-section down a central axis, the annular body including: a first linear section oriented down a first plane; a first portion contiguous with the first end of the first linear section, the first portion being curved with respect to the first linear section and in accordance with a first predetermined radius, the first portion extending to a first distal end; a second portion contiguous with the second end of the first linear section, the second portion including: a second linear section oriented down a second plane non-parallel to the first plane; and at least one discrete, radially-oriented tab contiguous with the second linear section and oriented along a circumference of the annular body.

A headrest assembly (108, 204, 500, 602), comprising: a transverse element (208, 508, 608) configured to be movable in at least one of: a forward direction or a backward direction along a first axis (114, 212), wherein the transverse element comprises a plurality of notches (216, 526, 636), and wherein the plurality of notches is configured to retain a wire (222, 512, 804, 806); an actuating unit (120, 228, 604) which is operatively connected to the transverse element and the wire, wherein the actuating unit is configured to exert a force on the wire; and the wire which is operatively connected to the transverse element and the actuating unit, wherein the wire comprises a first end (234, 640), a plurality of curved sections (238), a plurality of linear sections (244) and a second end (248), and wherein the plurality of linear sections is configured to engage or disengage with the plurality of notches in response to the force exerted by the actuating unit on the first end, such that the wire moves from a first state to a second state to enable controlled movement of the headrest assembly in one or more directions.

The invention relates to a steel fibre for reinforcing concrete or mortar. The steel fiber includes an intermediate portion and anchoring ends located at one or both ends of the intermediate portion. The intermediate portion has a main axis. The anchoring end comprises at least: a first linear section; a first curved section; a second linear section; a second curved section; a third linear section; and a third curved section. The first linear section and the third linear section are curved away from the main axis of the intermediate portion in the same direction. The main axis of the second linear section is substantially parallel to the main axis of the intermediate portion. The invention also relates to a concrete structure comprising the steel fibres according to the invention, and to the use of the steel fibres for reinforcing a load-bearing structure of concrete.

The invention belongs to the technical field of medical instruments, and particularly discloses an anti-falling and angle-adjustable drainage tube which comprises a second linear section, a bent section, an angle adjusting assembly, an inhaul cable, an anti-falling bag and a pipeline, the tail end of the bent section extends to be provided with a first linear section, and the angle adjusting assembly is arranged on the outer side of the second linear section; one end of the inhaul cable is connected with the inner wall of the bent section, the other end of the inhaul cable penetrates through the second linear section to be connected with the angle adjusting assembly, and the angle adjusting assembly adjusts the length of the inhaul cable in the drainage tube and changes the angle of the bent section. An anti-falling bag is arranged on the outer side of the drainage tube and communicated with the pipeline, the anti-falling bag is in a contraction state when implanted, gas or liquid is introduced to expand after the angle of the bent section is adjusted, and therefore axial movement of the drainage tube is limited. The drainage tube adapts to anatomical structures of different patients and has the anti-falling function, and the safety and stability of the drainage tube are improved.

A wheel (3) includes a core member (32) consisting of a tubular member (140) formed with a plurality of V-shaped notches (142) on one side thereof, and bent into an annular shape so as to close the notches, and a plurality of free rollers (60) each rotatably fitted on a linear section (120) of the tubular member located between a mutually adjoining pair of the V-shaped notches via a bearing (122) provided with an inner race (124) and an outer race (126), wherein a raised piece (130) is provided for each inner race on another side of the tubular member opposite from the one side as well as a protrusion (138) so as to engage an end surface of the inner race and fixedly secure the inner race to the core member.

The utility model relates to a device for quickly assembling and disassembling a template. The device comprises a fence, a fastening component and a supporting component which are all detachable. The fence comprises opposite vertical clamping plates and bent clamping plates. Each fastening assembly comprises a vertical clamping strip parallel to the vertical clamping plate, a bent clamping strip parallel to the bent clamping plate, two cross beam rods and a plurality of bolts. The first cross beam rod penetrates through the two clamping strips and the two baffles at the position close to the plane and within the range of the inclined sections of the bent clamping strips. The second cross beam rod penetrates through the two clamping strips at the position where the two clamping strips are higher than the two baffles and are only located in the linear section range of the bent clamping strips. And a bolt is screwed at one end, exposed out of the corresponding clamping strip, of each cross beam rod. The utility model solves the problems of site limitation, progress restriction and the like, can be widely applied to template manufacturing and mounting, concrete pouring and the like in the fields of pump gate construction, river and canal treatment, dike building and seepage interception, pit and pond treatment, high-standard farmland construction and the like, and is used for reinforced concrete retaining wall construction.

The steel pipe truss comprises a concrete prefabricated bottom plate (1) and an upper chord steel pipe (2), the left side and the right side of the upper chord steel pipe (2) are each in an arc shape, the upper ends of the arcs on the left side and the right side are connected to form an upper straight line section, the lower ends of the arcs on the left side and the right side are connected to form a lower straight line section, and the lengths of the upper straight line section and the lower straight line section are both 15-80 mm; the prefabricated concrete bottom plate further comprises a web member (3), the web member (3) is formed by continuously bending a hollow steel pipe into a wave shape, the wave crest of the wave-shaped web member (3) is welded to the bottom face of the lower linear section of the upper chord steel pipe (2), and the wave trough part of the wave-shaped web member (3) is buried in the prefabricated concrete bottom plate (1). The hollow web member is creatively welded with the straight section at the bottom of the upper chord steel pipe, and the thickness of the steel plate at the lower straight section of the upper chord steel pipe is increased, so that the defect can be better avoided, and the welding strength is ensured.

The invention relates to the technical field of foundation pit excavation and slope supporting engineering, and particularly discloses a large-span foundation pit skewback supporting structure, a design method and a construction method.The structure comprises a waterproof curtain, row piles, supporting piles, supporting beams, inner inclined struts, inclined throwing struts, support piers, top beams, waist beams and anti-floating pressure top beams; the straight edge of the large-span foundation pit adopts densely-arranged row piles or underground diaphragm walls for retaining soil, and multi-span arched sparse-arranged supporting piles are arranged on the inner side of the foundation pit to support the row piles or the underground diaphragm walls. The top beams and the waist beams of the row piles are linear sections, and the top beams and the waist beams of the supporting piles are arc-shaped; the inclined throwing supports transfer arch foot supporting force of the arc arch to the support piers; when the pit bottoms of the row piles and the supporting piles are silt, full-space-shaped or lattice-shaped stirring piles are arranged for reinforcement; internal force calculation and stability analysis are carried out according to a model with the row piles as the active side of the supporting structure and the multi-span skewback as the passive side. The method has the advantages that a large-span inner support is replaced by the multi-span arched support, materials are saved, and the construction period is shortened.

The utility model provides a kind of feeding spoon for photovoltaic silver paste production, comprising: scoop head (1), the scoop head has first side and opposite second side;Spoon handle (2), it includes :-the first linear section (21) that extends from the first side of scoop head;-the curved section (20) that extends from the first linear section along the curved path of second side departure;-the second linear section (22) that extends from curved section;And the third linear section (23) that extends from second linear section, wherein the included angle α is formed between second linear section and third linear section;Wherein, the spoon handle has the first fulcrum (3) at the connecting place of second linear section and curved section, and the second fulcrum (4) at the connecting place of second linear section and third linear section.This feeding spoon adopts bending type spoon handle, can reduce wrist pressure when operating, improves holding comfort.

The application discloses a hinge structure for a connector, which is easy to assemble and disassemble, prevents misplug, and allows 360-degree rotation (whole line). The hinge structure comprises a male module and a female module. The male module is provided with a head, which has an outer wall, an inner wall, and a plug-in cavity defined by the inner wall. The head (or the inner wall / plug-in cavity) is formed with at least two linear sections (and / or arc sections) and / or a limiting part (or an arc section and / or a linear section of the limiting part) protruding towards the plug-in cavity (internal direction) and / or a secondary limiting part. The female module is provided with a secondary plug-in barrel, a secondary outer wall (and / or a secondary inner wall, a secondary plug-in cavity defined by the secondary inner wall). When the plug-in cavity is combined with the secondary plug-in barrel, the secondary outer wall of the female module is tangent to (or tangent to) the linear section (and / or arc section) and / or limiting part (arc section and / or linear section) of the head (or inner wall / plug-in cavity) of the male module, and at least three tangent points are formed to establish the function of stably connecting the male module and the female module.

The invention relates to the technical field of material plastic forming, and provides an L-shaped profile frame double-piece padding roll bending synchronous accurate forming method which comprises the following steps: step 1, splicing two L-shaped profile webs back to back to enable the cross section to form a T-shaped structure; 2, an elastic polyurethane plate is cushioned on the L-shaped profile to form a machined part; step 3, carrying out numerical simulation on the two pieces of padding of the L-shaped profile, and calculating the deformation and springback sizes of the L-shaped profile under different lifting amounts of the left roller and the right roller; 4, the lifting amount of the left rolling wheel and the lifting amount of the right rolling wheel are set according to the calculation result, and roll bending is conducted on the machined workpiece; and 5, linear sections at the initial end and the tail end of the L-shaped profile are removed. Soft constraint is applied to the two spliced L-shaped profiles in a padding mode, so that the problems of instability, wrinkling, torsional deformation and the like during direct roll bending of the L-shaped profiles difficult to deform are solved, and the forming precision and the production efficiency are improved.

The utility model discloses a kind of opening and closing limiting mechanism of valve, it is related to valve technical field.The mechanism includes limit piece and gland, gland is connected with valve body by two fasteners, fastener protrudes from the surface of gland and is separately arranged on opposite sides of gland;First stop table and second stop table that respectively encircle corresponding fastener are protruded on the gland, both are in parentheses shape, including the arc connecting section of middle and linear section of both ends;Limit piece has first abutment and second abutment, when rotating to limit position with valve rod, abutment and the linear section side wall of corresponding stop table form surface contact and abut each other.By setting stop table around fastener, limit piece is abutted on stop table instead of directly contacting fastener, avoid that fastener bears transverse shear force;The arc connecting section of parentheses shape stop table enhances structural strength, linear section provides surface contact, contact area is big, wear-resistant, and limit precision is high;Two-point symmetrical limit makes stress balance, and structure is stable and reliable.

The utility model belongs to the field of railway facility detection tools, and particularly relates to a device for detecting verticality of a linear section sleeper. Comprising a guiding rule, a horizontal straight rod and a dial, the guiding rule is provided with a straight edge, the horizontal straight rod is fixed to the top face of the guiding rule and is perpendicular to the straight edge of the guiding rule, the bottom face of the horizontal straight rod is a plane, the length of the horizontal straight rod is larger than the distance between steel rails, and the two ends of the horizontal straight rod extend outwards relative to the straight edge of the guiding rule so that the two ends of the horizontal straight rod can be lapped on the top faces of the steel rails. The dial is connected with the guiding rule, angle scale marks are arranged on the dial, and the original point of the angle scale marks is located at the intersection point of the horizontal straight rod and the straight edge of the guiding rule; the detection device can accurately detect the vertical deviation angle of the sleeper and the steel rail, greatly improves the construction quality of the manual track laying square sleeper, reduces the rework rate, and is more convenient for the operation, maintenance and management of a line. The detection device has the advantages of being simple in structure, convenient to manufacture, accurate in positioning and high in precision.