23 results about "Rigid block" patented technology

The invention relates mainly to a polymer composition comprising: (a) 55% to 99%, preferably 60% to 95%, advantageously 65% to 90%, and in particular 70% to 85% by weight of polyether block amide (PEBA) having a ratio of the number-average molar mass of the polyamide blocks to that of the polyether blocks of 1.0 or less; (b) 1% to 45% by weight of a modifier selected from among: i. a thermoplastic elastomer in the form of a block copolymer with a ratio D of the number-average molar mass of the rigid blocks to that of the soft blocks of less than 0.8; ii. a crude or crosslinked rubber; and iii. combinations thereof; (c) 0% to 5% by weight of additives; and (d) 0% to 5% by weight of fillers, the sum of the percentages of components (a) to (d) adding up to 100%, and wherein the composition comprises less than 4% by weight of carbon black.

The invention belongs to the technical field of textiles, and discloses a high-elasticity polyester fabric and a preparation method thereof. The fabric is formed by 100% modified PET, and a molecular chain of the fabric adopts a three-arm star-linear topological structure which takes trimethylolpropane as a core and contains a PET rigid block and a PTMG flexible block; the preparation method comprises the steps of prepolymer synthesis, melt polycondensation, solid-phase tackifying, melt spinning, false twist deformation and heat setting, and precise construction of a microstructure is achieved by regulating and controlling the density of a catalyst system and topological nodes. Through the innovative design of a molecular topological structure, a pure polyester fabric system with high elasticity, high weather resistance, high strength and complete recoverability is successfully constructed, so that the problems of environmental stability and recovery of the existing spandex-based elastic fabric are solved; and a brand new technical path is provided for sustainable development of high-performance synthetic fibers.

The present application discloses a compressible and foldable all-suture interface screw, and the compressible and foldable all-suture interface screw includes a deformable fixation body, a pull bolt, and a top bolt; the deformable fixation body includes a flexible pipe and several rigid blocks fixed to an outer wall of the flexible pipe, the flexible pipe is made of a textile fabric, the rigid block is an isosceles trapezoidal column, an end surface of the rigid block close to the flexible pipe is a connection surface, and adjacent two of the rigid blocks form a folding unit, long side surfaces of two rigid blocks in a same one of the folding units are opposite to each other; the bolt rod of the pull bolt passes through the flexible pipe and the top bolt in sequence, and the top bolt is slidable relative to the bolt rod of the pull bolt.

The logistics transportation intelligent detection equipment based on industrial vision comprises a transportation detection assembly, the transportation detection assembly comprises a base plate used for limiting, a conveying belt is arranged in the middle of the base plate, a detection part is arranged over the base plate, a supporting plate is arranged at the corner of one side of the base plate, and a limiting mechanism is arranged at a feeding port of the base plate; an outer limiting shell, a positioning block mechanism used for limiting the logistics boxes in the conveying process and a material distributing assembly used for conveying the logistics boxes detected to be qualified are arranged at the lowermost position of the base plate. Therefore, the transverse position of the logistics box on the conveying belt is dynamically adjusted, the pressure sensors simultaneously reach and judge that the logistics box is located in the middle, the material blocking rods abut against the side face of the logistics box to form rigid blocking, reverse displacement after the logistics box is turned over is avoided, and qualified logistics boxes and unqualified logistics boxes are separately conveyed through the material distributing assembly. Therefore, the detection reliability, the sorting efficiency and the cargo safety are improved, and meanwhile, the labor cost and the maintenance complexity are remarkably reduced.

This invention relates to the field of polishing equipment technology, and more particularly to a quick-change polishing fixture, comprising: a base, the base including a base portion and a positioning boss protruding upward from the center of the top of the base portion; wherein, a keyway is provided at each of the four corners of the top surface of the base portion; an adhesive strip, the adhesive strip having a U-shaped structure matching the contour of the base and being fitted around the outer periphery of the positioning boss; the top surface of the adhesive strip being higher than the top surface of the positioning boss, so as to jointly form a placement groove for accommodating a workpiece; the bottom surface of the adhesive strip having multiple weight-reducing grooves extending along its U-shaped path; multiple rigid blocks, the number of which corresponds to the keyway, each rigid block being embedded in the weight-reducing groove at each of the four corners of the bottom surface of the adhesive strip; wherein, the bottom of each rigid block is integrally formed with a downwardly extending positioning key, the positioning key being adapted to and embedded in the keyway, so as to position and connect the rigid block to the base and press and fix the adhesive strip to the base portion.

Disclosed is a super-redundant multi-stable variable stiffness manipulator, in which one end of a whole driving rope is connected to a whole driving device, passes through second through holes of all modules, and is fixed to a farthest module at the other end; one end of a module driving rope is fixed to a module driving device, passes through first through holes of all modules, passes through second through holes of a module before a terminal module is reached, and is finally connected to a second through hole of the terminal module; when a flexible plate does not deform, there is a gap between multi-stable wheel discs of adjacent modules, and a first tooth does not contact a second tooth; when the flexible plate deforms, a first rigid block moves downward, a first tooth of an upper multi-stable wheel disc contacts a second tooth of a lower multi-stable wheel disc, and adjacent modules perform multi-stable motion; the multi-stable motion is a composite motion of single-degree-of-freedom rotation and reciprocating movement; and a profile of the first tooth and a profile of the second tooth are a pair of conjugate curves for the multi-stable motion.

The utility model relates to a tenon-and-mortise wood structure reinforcing and repairing device which is structurally characterized in that anchorage devices are arranged at the two ends of prestressed pull rods, a plurality of laminated rigid blocks are arranged between wood beams and wood columns in the vertical space of a tenon-and-mortise wood structure in the height direction, and a plurality of prestressed pull rods are arranged in the rigid blocks. One end of each prestressed pull rod is fixed on a foundation beam or a ground beam of the existing building through an anchorage device, and the other end of each prestressed pull rod is fixed on a wood beam at the upper part through an anchorage device after sequentially penetrating through the rigid blocks upwards; the two sides of the rigid block body are connected with the original wooden columns of the mortise and tenon wood structure through tie bars respectively. The device is suitable for the endangered ancient building which needs to be subjected to anti-seismic and wind-resistant reinforcement and repair, and can meet the principle of'repairing the old as the old '. Meanwhile, the utility model also forms a novel structural system capable of improving the maximum applicable height of the modern antique wood structure building, and is suitable for modern antique wood structure high-rise buildings and structures developed on the basis of the same technical principle.

The present application belongs to the technical field of stamping equipment, and discloses a stamping equipment for vehicle part machining, which comprises an equipment body, a stamping rod is installed on the top of the equipment body, a stamping seat is installed at the bottom of the stamping rod, and a protection assembly is arranged in the middle of the equipment body; before the start of stamping operation, the infrared induction device first completes area detection, then the motor drives four groups of driving mechanisms through a transmission mechanism, drives the bottom lead screw to rotate, and makes the four groups of guide sleeves synchronously feed under the cooperative limiting of the guide seat and the stamping seat; if foreign matter interference occurs during feeding, the blocking object cuts off the power transmission between the driving mechanism and the transmission mechanism through the pushing mechanism, and the guide sleeve of this group stops feeding immediately; when the stamping rod drives the stamping seat to work, the guide seat forms a rigid block to the stroke of the stamping seat, so that instant locking can be realized, the problems of traditional ratchet locking delay, single infrared induction detection blind area and response lag are effectively solved, and the timeliness and reliability of stamping operation safety protection are significantly improved.

Disclosed in the present application is a compression foldable full-suture interface screw, the foldable full-suture interface screw comprising a deformable fixation body, a pull bolt, and a push bolt. The deformable fixation body comprises a flexible tube and a plurality of rigid blocks fixedly arranged on the outer wall of the flexible tube, wherein the flexible tube is a textile fabric, the rigid blocks are isosceles trapezoidal columns, and the end surfaces of the rigid blocks close to the flexible tube are connecting surfaces; two adjacent rigid blocks form a folding unit, and long side surfaces of the two rigid blocks in the same folding unit face each other; when a force is applied to the folding units in the length direction of the flexible tube, the folding units drive the flexible tube to deform and move, so that the two connecting surfaces approach each other; a bolt rod of the pull bolt sequentially passes through the flexible tube and the push bolt, the push bolt can slide relative to the bolt rod of the pull bolt, and the deformable fixation body is sandwiched between a bolt head of the pull bolt and the push bolt.

The invention relates to a laminate comprising at least one core layer arranged between and in contact with an adjacent first layer and an adjacent second layer. The core layer comprises a polymer composition, the polymer matrix of which comprises from 40% to 60% by mass of at least one polymer A comprising repeating units A1 interconnected by an amide bond, and from 40% to 60% by mass of at least one thermoplastic elastomer B comprising at least one flexible polyether-type block and at least one rigid polyamide-type block, the rigid block comprising repeating units B1 interconnected by an amide bond, which units B1 are different from the repeating units A1. The adjacent layers respectively comprise polymers C and D having a polyamide block that comprises repeating units C1 that are identical to the repeating units A1 and a polyamide block that comprises repeating units D1 that are identical to the repeating units B1.

The application belongs to the technical field of force sensors, and discloses a full-plane low-crosstalk six-dimensional force sensor elastic body and a working method thereof, wherein the in-plane force sensitive beam of the in-plane force measurement layer is arranged in a diamond compliant amplification mechanism, the obtuse angle stress end and the obtuse angle fixed end of the diamond compliant amplification mechanism are connected with the acute angle stretching end through a deformation beam, the two ends of the in-plane torque sensitive beam are connected with the deformation beam, the in-plane force sensitive beam is connected with the acute angle stretching end, the input platform is connected with the obtuse angle stress end, and a through hole is formed in the input platform; the decoupling compliant beam of the flexible decoupling layer is connected with the obtuse angle fixed end; the two ends of the cross beam of the T-shaped sensitive beam of the out-of-plane force measurement layer are connected with the middle rigid block, the middle rigid block is connected with the decoupling compliant beam; the in-plane torque sensitive beam, the in-plane force sensitive beam and the T-shaped sensitive beam are arranged on the same plane and the front and back surfaces of the same plane are provided with strain measurement units to form a Wheatstone bridge. The application reduces the inter-axis crosstalk and improves the arrangement efficiency of the strain measurement units.

This utility model belongs to the field of mold accessory technology and discloses a mold fixing accessory for preventing loosening. It aims to solve the problems of loosening, misalignment, and shortened lifespan caused by deflection deformation of long guide shafts. The accessory includes a rigid block-shaped support body, a rigid long strip-shaped extension, a raised base fixed to the center of the support body, and a guide shaft through-hole on the raised base. The extension is connected to the support body by snap-fit ​​and bolts, allowing it to rotate in multiple directions with the regular octagonal cross-section of the support body, adapting to different equipment bracket installations. The guide shaft through-hole in the raised base nests with the guide shaft, providing support for the central blind area and suppressing deflection deformation. The support body and the raised base form multiple sets of symmetrical, equal molecular components through segmented notches. The splicing gaps provide strain space for contact parts, reducing rigid wear. This accessory can serve as a mid-section auxiliary support or an end support, improving device stability and service life, balancing accuracy, cost, and efficiency.

The invention provides a mass damping enhanced guiding type flexible protective net system which comprises an annular protective net, an upper supporting rope, a plurality of transverse supporting ropes, longitudinal supporting ropes and anchoring assemblies, the upper supporting rope is connected with the multiple anchoring assemblies, and the multiple longitudinal supporting ropes are connected with the upper supporting rope and the multiple anchoring assemblies correspondingly. The transverse supporting ropes are fixedly installed on the slope and the longitudinal supporting ropes, the annular protective net is fixedly installed on the inner sides of the longitudinal supporting ropes, the upper portion of the annular protective net is an intercepting section, and the lower portion of the annular protective net is a guiding section. A part of the longitudinal supporting rope of the guiding section is provided with a hanging node, and a flexible mass damper is hung on the hanging node. Through the inertia effect and the gravity pre-tensioning effect of the mass damper, the energy dissipation capacity and the pressing effect on falling rocks are remarkably improved, and mass damping vibration attenuation is achieved; the flexible mass damper has high toughness, is maintenance-free and does not have the secondary disaster risk that a rigid block falls off. The flexible mass damper perfectly meets the requirement for toughness prevention and control of current geological disasters.

A pillow assembly for supporting objects on a user's arm without impeding blood circulation through the arm includes a main body comprising a resiliently compressible material. Rigid blocks are coupled to a top side of the main body, and inserts are mounted atop the rigid blocks. The main body is bent to surround the arm with the inserts. Loads may be exerted on the pillow assembly through the main body, rigid blocks, and inserts while the pillow assembly is worn by the arm to support the loads on the arm without limiting blood flow.

This invention proposes an amphibious, tensioned, biomimetic mudskipper robot with asymmetric stiffness pectoral fins. The biomimetic mudskipper robot comprises a rigid head assembly, a pectoral fin assembly, a body assembly, flexible skin, and a flexible tail fin. The pectoral fin assembly is composed of a flexible base, an elastic layer, and a rigid block with gaps. Asymmetric stiffness is passively achieved through the contact and separation of the rigid block under bending force, balancing high rigidity support on land with low backlash. The body assembly employs a tensioned scissor structure, driven by a single servo motor to an integrated differential steering wheel. The difference in winding radius causes proportional displacement of multiple sets of drive ropes, driving the coordinated deflection of each support structure component to accurately match the wave pattern of a biological fish body. This invention significantly reduces the complexity of the drive system while improving the robot's impact resistance and cross-medium mobility, achieving high maneuverability in unstructured mudflat environments.

The scapegoat device for preventing falling of a roller mechanism relates to the technical field of roller extrusion equipment and comprises a safety block, which is configured to automatically rotate to a vertical state and wedge between an upper roller assembly and a lower roller assembly to form a physical block when the upper roller assembly is lifted to a preset position; an elastic locking mechanism, which is configured to turn the safety block outward after the upper roller assembly is lifted to the preset position and can resist the safety block to limit the reset of the safety block through the gravity of the safety block, so that the safety block is in an open state; and a sensing monitoring mechanism, which comprises an upper sensor and a lower sensor, the lower sensor is used for monitoring whether the safety block is wedged in place, and the upper sensor is used for monitoring whether the safety block is in the open state. The utility model discloses a gravity trigger type safety block which is automatically wedged between rollers to form a rigid block, thereby completely eliminating the risk of manual intervention; the pure mechanical locking mechanism is used for realizing the self-locking and manual unlocking of the block, thereby avoiding the fault hidden danger of electric control / pneumatic elements.

The invention relates to a laminate comprising at least one central layer disposed between and in contact with a first adjacent layer and a second adjacent layer. The central layer comprises a polymer composition whose polymer matrix comprises 40% to 60% by mass of at least one polymer A comprising repeat units A1 linked together by an amide bond, and 40% to 60% by mass of at least one thermoplastic elastomer B comprising at least one flexible polyether block and at least one rigid polyamide block, the rigid block comprising repeat units B1 linked together by an amide bond, which B1 units are different from the A1 repeat units. The adjacent layers comprise, respectively, polymers C and D having a polyamide block comprising repeat units C1 identical to the A1 repeat units and a polyamide block comprising repeat units D1 identical to the B1 repeat units.

The invention discloses an auxiliary device for precisely controlling the angle of geological prospecting directional drilling, and relates to the technical field of geological prospecting drilling equipment.The auxiliary device comprises a drilling tool body and a drill bit, a reaming assembly is arranged in the position, close to the bottom end, of the drilling tool body, and an adjusting cavity is formed in the bottom end of the drilling tool body; and an angle adjusting assembly is arranged in the adjusting cavity. The reaming assembly is integrated in the position, close to the bottom end, of the drilling tool body, the reaming assembly and the angle adjusting assembly are arranged in a layered mode in the axial direction, linkage control is achieved, drill bit orientation can be achieved through the angle adjusting assembly without inclination, the drilling tool body keeps a stable posture all the time, direct friction between the drilling tool body and a well wall is thoroughly avoided, and drilling efficiency is improved. Rigid blocking of the non-chambering well wall to the drill bit is eliminated in time through synchronous chambering, the drill bit is only subjected to rock breaking resistance in the deflection process, no extra interference force exists, and the drifting phenomenon is avoided fundamentally.

The utility model relates to the field of building decorative plates, and discloses a building decorative plate with corrosion prevention and heat preservation effects, which comprises a base plate, a heat preservation layer is arranged in the base plate, a reinforcing layer is arranged on the lower surface of the heat preservation layer, and a plurality of clamping plates are fixedly connected to the outer wall of one side of the base plate. A supporting plate is fixedly connected to the inner wall of one side of the clamping plate, a main connecting plate is fixedly connected to the outer wall of one side of the supporting plate, rigid blocks are rigidly connected to the upper end and the lower end of the outer wall of one side of the main connecting plate, and a plurality of clamping grooves are formed in the outer wall of the side, away from the clamping plate, of the base plate; sliding grooves are formed in the front end and the rear end of the base plate, clamping strips are slidably connected into the sliding grooves, the decorative plate is conveniently and rapidly spliced through clamping matching of the arranged rigid blocks and the clamping grooves, and the clamping strips and the clamping grooves also have the beneficial effects, so that transverse and longitudinal installation is achieved, and the construction difficulty is reduced.

The utility model provides a crash test buffer brake device. The crash test buffer brake device comprises a passive hydraulic buffer oil cylinder system, a crash carrier, a damping rubber plate, a belleville spring plate, a compression cylindrical spring, a rigid bearing plate, buffer protection rubber and a rigid blocking wall. Wherein the collision carrier, the damping rubber plate, the belleville spring plate, the compression cylindrical spring and the rigid bearing plate are coaxially mounted on a telescopic cylinder barrel of the passive hydraulic buffering oil cylinder system. And the buffer protection rubber is fixed on the rigid blocking wall. The passive hydraulic buffering oil cylinder system and the rigid blocking wall are fixed to the same rigid support. The rigid supports are symmetrically distributed and sleeved on the buffer brake device, and the passive hydraulic buffer oil cylinder system can share a hydraulic driving system. Part of kinetic energy of colliding with a carrier is absorbed through compression deformation of the damping rubber plate, the belleville spring plate and the compression cylindrical spring, hydraulic oil in the oil cylinder is compressed by driving the telescopic cylinder barrel of the passive hydraulic buffering oil cylinder system, and buffering braking is achieved through the damping effect generated by small holes in the oil cylinder. Buffering protection rubber is used for protecting the oil cylinder end cover from rigidly colliding with the rigid blocking wall, and safe operation of the buffering brake device is guaranteed. According to the device, a collision object and a tested product can be rapidly separated within a short distance, and a collision carrier is rapidly buffered, braked and stopped moving.

Disclosed is a kind of multi-stable robot module, in the module, two first wheel discs are oppositely arranged with interval, the first wheel disc includes a first number of first wheel teeth;First rigid block is located between the two first wheel discs, and the two first wheel discs are symmetrically fixed on the two sides of the first rigid block by fasteners;Second wheel disc is connected with the first wheel disc by the second wheel teeth engaged with the first wheel teeth;The connector is located between the two second wheel discs, and the connector includes an upper second rigid block and a lower third rigid block, the second rigid block and the third rigid block are connected by a pair of parallel flexible thin rods to form a flexible parallelogram mechanism, the first rigid block is hinged to the second rigid block by a pin shaft, the first wheel disc moves multi-stably relative to the second wheel disc, the multi-stable motion is a composite motion of single-degree-of-freedom rotation and reciprocating movement, and the profile of the first wheel tooth and the profile of the second wheel tooth are a pair of conjugate curves of the multi-stable motion.

The invention relates principally to a polymer composition comprising: (a) 55 to 99%, preferably 60 to 95%, advantageously 65 to 90%, and in particular 70 to 85% by weight of polyether block amide (PEBA) having a number-average molar mass ratio of polyamide blocks to polyether blocks less than or equal to 1.0; (b) 1 to 45% by weight of a modifier selected from: i. a thermoplastic elastomer in the form of a block copolymer with a number-average molar mass ratio D of rigid blocks to flexible blocks less than 0.8; ii. a rubber, raw or crosslinked; (c) 0 to 5% by weight of additives; and (d) 0 to 5% by weight of fillers, the sum of the percentages of components (a) to (d) adding up to 100%, and in which the composition comprises less than 4% by weight of carbon black.