371 results about "Foot structure" patented technology

The present invention relates to a device to be integrated into an article of footwear, normally as, but not limited to, a shoe innersole or shoe midsole, to interact with the plantar surface of the wearer's foot, in the region of the foot's main first layer intrinsic muscles. The present invention produces benefits to address gait related issues associated with weakened foot structure and faulty gait biomechanics.

A folding treadmill includes a tread base supported by a foot structure which has guide plates formed with elongated slots on two sides of the tread base. The tread base is connected pivotally on the base support through pivot members which are mounted movably within the respective slots so that the tread base is turnable between a folded position and an unfolded position and movable rearward when the tread base turns to the folded position or forward when the tread base turns to the unfolded position. The foot structure further includes a guide rail structure on two sides of the tread base to support movably a first roller which is attached to the tread base and a lifting device for lifting the tread base.

A folding treadmill includes a tread base supported by a foot structure which has guide plates formed with elongated slots on two sides of the tread base. The tread base is connected pivotally on the base support through pivot members which are mounted movably within the respective slots so that the tread base is turnable between a folded position and an unfolded position and movable rearward when the tread base turns to the folded position or forward when the tread base turns to the unfolded position. The foot structure further includes a guide rail structure on two sides of the tread base to support movably a first roller which is attached to the tread base and a lifting device for lifting the tread base.

The invention discloses a passive energy storage foot mechanism for power assisting exoskeletons for lower limbs.The passive energy storage foot mechanism comprises an ankle joint unit, a foot side face plate, a foot sole unit, a binding unit and passive spring energy storage units.The ankle joint unit is connected with the foot sole unit by the foot side face plate; the foot sole unit is of a separation type flexible bending structure and comprises a rigid heel, a rigid front sole, a bottom plate spring, inner-side plate springs, outer-side plate springs, fixing mechanisms, a deformable adhesion plate and a rubber cushion; the passive spring energy storage units include a dorsal flexion passive spring energy storage unit and a plantar flexion passive spring energy storage unit and are connected with the ankle joint unit by a spring support unit, the foot side face plate is used as a fixing base for the passive spring energy storage units, and dorsal flexion and plantar flexion energy storage effects can be respectively realized during movement.The passive energy storage foot mechanism has the advantages that foot structures of human bodies and the weights and inertia effects of the human bodies and the exoskeletons are sufficiently utilized, accordingly, energy can be passively stored by ankle joints in walking procedures, ground pedaling actions of toes can be carried out in the walking procedures, states can be automatically restored in the walking procedures, a wearer can wear the passive energy storage foot mechanism comfortably, and the passive energy storage foot mechanism is high in practicality and low in energy consumption.

A machine for cutting holes in concrete slabs comprises a connector adapted to be secured to an adapter of a front-end loader. Secured to the connector is a first frame structure that includes an elongated tube and a support foot for engaging the surface of a concrete slab and supporting the first frame structure. Confined within the elongated tube of the first frame structure is a beam that is slidable back and forth therein. One end portion of the beam extends from the elongated tube. A second foot structure extends downwardly from the one end portion of the beam to where it may engage the surface of the concrete slab. Secured directly or indirectly to the elongated beam is a concrete hole cutting saw unit that includes a drum type concrete saw. Interconnected between the beam and the first frame structure is a hydraulic cylinder that is operative to move the elongated beam and saw cutting unit back and forth between a retracted and extended position. Accordingly, the concrete saw can be moved back and forth, laterally with respect to the front-end loader. By raising lift arms associated with the front-end loader, the concrete hole cutting machine can be moved from location to location. In use, the lift arms are lowered to where the two feet engage the upper surface of the concrete slab and the concrete saw is lowered into engagement with the concrete slab and by driving the concrete saw a circular hole is cut in the concrete slab.

The invention relates to a foot structure of a humanoid robot based on a modularized array sensor. The foot structure comprises a foot plate, a rear foot sole fixed at the rear end of the foot plate, and a front foot sole connected with the foot plate through a foot sole connection piece and capable of rotating, wherein a sensor array comprising a plurality of sensors used for sensing ground counterforce information is arranged at the bottom of the foot plate; and a connection assembly used for being connected with robot legs is arranged on the foot plate. Therefore, the foot structure has the following advantages that the foot structure which is compact in structure, is provided with a ground self-adaption and energy absorption buffer device and can more accurately measure a zero moment point in the robot walking process is designed by a modularization method in an array arrangement way based on PVDF (polyvinylidene fluoride) piezoelectric film sensors; and the PVDF piezoelectric film sensors can be interchanged, so that a fault component can be dismounted and replaced when a fault occurs.

The foot structure of four foot waling robot with floated foot support includes calf, subsidiary ball cover plate, knuckle, instep seat, upper washer, clamp plate, balls in holder, lower washer, sole seat, approach sensor, foot pad, feeling sensor, buffering pad, outer casing and pressing spring connected together. The present invention is light, firm and floatable, and has elastic compensation capacity and environment feeling capacity.

An indoor model test method for a tunnel lining support structure, which consists of three parts: a jack, a retractable lateral support and a tunnel lining support structure. The jack is arranged around the lining support structure to simulate the effect of surrounding rock pressure on the lining , the retractable lateral support connects the two feet of the lining support structure, which is used to simulate the two-way yielding support effect of the surrounding rock of the tunnel floor on the lining footing structure. The type, materials and geometric dimensions of the tunnel lining support structure are based on The actual engineering prototype is scaled down to a certain scale. The invention is used in the indoor model test research of geotechnical engineering, and well simulates the mechanical action of the tunnel or mine roadway surrounding rock pressure on the lining support structure. The test operation is effective and reliable, and it is used to test the mechanical properties, deformation and failure characteristics of the lining structure. And further applied to engineering practice, providing reliable data and reference.

The invention provides an anti-shake structure, an anti-shake system and a camera device. The anti-shake structure comprises a base, a shell, a lens supporting body, at least four groups of PIN end foot structures and a plurality of SMA wires, wherein the shell is arranged outside the base in a covering mode, and an accommodating cavity is formed between the shell and the base; the lens supportingbody is arranged in the accommodating cavity; the at least four groups of PIN end foot structures are positioned in the accommodating cavity, and at least one group of the PIN end foot structures arecorrespondingly arranged at each side edge of the base; each group of the PIN end foot structures comprises a first PIN end foot, a second PIN end foot and a pressing sheet; the first PIN end feet and the second PIN end feet are arranged on the base in an independent with each other mode; and the pressing sheets are arranged on the lens supporting body; and each group of the PIN end foot structures are correspondingly connected with two SMA wires which are arranged in a crossing way, wherein one SMA wire connects the first PIN end feet with the pressing sheets, and the other SMA wire connectsthe second PIN end feet with the pressing sheets. The anti-shake structure, the anti-shake system and the camera device solve the problem of complex internal structure of the anti-shake structure inthe prior art.

The invention discloses a seabed garbage cleaning robot. The robot comprises a box body structure, grabbing structures, foot structures, step-by-step transferring and conveying devices and a sensor; the mechanical grabbing part adopts a multi-joint mechanical arm, so that the freedom degree is flexible; aiming at the underwater grabbing stability, the design of a grabbing mechanical arm adopts theform of a three-jaw structure and a suction fan matched to work, so that the grabbing stability is improved; and mechanical feet adopt three degrees of freedom and multi-connection rod structures, rotation of a horizontal plane and rotation of two vertical planes to realize gait movement of the mechanical feet; according to the seabed garbage cleaning robot, elastic structures are added at foot ends, so that buffer is provided for the robot when the robot loses balance and falls due to disturbance underwater, the robot can adapt to complex terrains, and the stability of the robot is increased; the step-by-step transferring devices are provided for the design of a storage device for garbage in the box body, so that a plurality of working periods can be carried out at one time; and meanwhile, the limitation of the appearance and size of the robot on the total amount of grabbing garbage is broken, so that the garbage cleaning efficiency is improved.

A foot weight device is provided which can be fitted to the foot or footwear of a user. The device is particularly adapted for use with skates, and in particular a hockey skate. The device has one or more compartments located on each side of the user's ankle so as to provide an equally balanced weight on the side of the user's foot. The weight receiving compartments are positioned adjacent to both the lateral and medial malleolus portions of the ankle so that weight is preferably equally applied to both sides of the ankle. Alternatively, the weight receiving compartments can be formed as an integral part of the footwear. A more balanced foot weight is provided which minimizes undue strain on the ankle and foot structure.

This invention relates to a highly engineered shoe sole developed to fit the natural structure of the human foot and walking gait. By inventing a shoe sole with the heightened outer part of the shoe heels and lowered on the inner part of the front portion of the sole, the shoe enables the triple-time stepping by maintaining his / her feet and the ankle aligned with the shoes when standing or walking. Also, by naturally shifting the center of the body inwards from the outer part of the shoes, thus distributing the body weight evenly to the entire area of the shoe soles, the shoes reduce fatigue on the foot by absorbing and mitigating the impact on the foot that supports the body weight, which prevents and corrects deformed walking habits such as out-toed gaits and also prevents slipping while walking.

The embodiment of the invention provides a soft robot system which is applicable to detection operation of complex environments and unknown fields, based on SMA, self-feedback and SSMA driving, combines external feedback, and matches soft joints and rigid joints. The modules namely an SSMAs driver element module, a flexible mechanism module and foot SMA driver modules are provided, wherein electric current flowing through SSMAs is adopted to control the telescopic length of the SSMAs so as to control the integral contraction of the robot; the parallel structure of SMA and SSMA realizes SMA self-feedback and the external feedback of the SSMA, so that the accurate control on the soft robot is realized; an external 3D shell is used for connecting the front rigid part with the rear rigid part of the robot, so that the soft robot system has better flexibility; a square spring supports a flexible silica gel shell to provide restoring force and other power; two groups of SMA driver modules in front of and at back of each foot structure are controlled respectively, so that the feet motion is realized, and the motion of the robot is realized along with other units.

The invention relates to a roundness measuring instrument of the large precision bearing ring. The roundness measuring instrument comprises an upper base, a lower base, a clamping device, a support foot structure device and a spindle supporting part, wherein the spindle supporting part is arranged between the upper base and the lower base; and the clamping device and the support foot structure device are fixed on the lower base. The invention is characterized in that the spindle supporting part contains a spindle and a plane bearing; the spindle is arranged in the plane bearing; the plane bearing is arranged on the lower base; the upper base is arranged on the plane bearing; the clamping device and the support foot structure device are fixed on the lower base through screws; the lower base is provided with a certain amount of screw holes, thus the roundness measurement of different types of bearing rings can be realized; and the upper base and the lower base adopt a split-type structure, thus facilitating the assambly and disassambly of the devices. The roundness measuring instrument has simple structure, convenient measurement and low production cost and can effectively measure the roundness of the large precision bearing ring.

A system installed in building foundations to absorb forces from earthquakes. The earthquake force absorption system includes a footing structure extending into a foundation hole, an anchoring substrate lining a bottom of the foundation hole, opposing springs disposed around the footing structure, and attachment plates coupling the springs to the footing structure and the anchoring substrate.

A portable support system having a portable support having a first end and a second end. The first end includes a tapered portion, and the second end includes a footing structure. The system also includes a receiving member having a support cone configured to receive the tapered portion. The support cone has a tapered inner surface and a tapered outer surface. The inner surface and outer surface are engagable with mating tapered surfaces. The receiving member is capable of attachment to one or both of a frame and a panel for use as a platform.

The invention belongs to a process for manufacturing a micro-nano bionic structure, and particularly relates to a process for manufacturing a bionic gecko foot structure material. The process comprises steps of (1) self-assembling polystyrene spheres with a diameter from 100 nanometers to 1 micrometer; (2) performing plasma etching on the polystyrene spheres; (3) plating a protective layer; (4) removing the polystyrene spheres; (5) plating a catalyst layer; (6) performing wet etching; (7) performing spin coating of photoresist and performing photoetching development; and (8) casting a mould and demoulding, pouring polydimethylsiloxane (PDMS) on a compound die, baking, and peeling off the PDMS from the compound die to obtain the nano-micro layered bionic gecko foot structure material. The process can be used for manufacturing a bionic gecko foot layered structure which has quite high absorbability, can be easily separated from an absorbed surface, and has super-hydrophobicity and self-cleaning ability.

The invention discloses a passive energy-storage ankle joint and foot mechanism for power-assisted exoskeletons of lower limbs. The passive energy-storage ankle joint and foot mechanism comprises an ankle joint unit, a foot-side panel unit and a foot pad unit, wherein the ankle joint unit comprises a crus rod and a compression spring and an ankle-joint guide rod; the compression spring and the ankle-joint guide rod are arranged in the crus rod; the foot-side panel unit comprises a foot-side panel, a foot pad and a wavy spring body; the foot-side panel comprises a side plate and a bottom plate; the foot pad and the wavy spring body are arranged at the lower end of the bottom plate; an arc-shaped surface is arranged on the side plate; the lower end of the crus rod is hinged on the side plate; and the lower end of the ankle-joint guide rod is contacted with the arc-shaped surface under the action of the compression spring and moves along the arc-shaped top surface. The passive energy-storage ankle joint and foot mechanism disclosed by the invention has the advantages that the foot structure of a human body, the human body and the mass and the inertial action of the exoskeletons are fully utilized, the passive energy storage of the ankle joint and the bottom-touching energy storage of the bow-shaped sole in the traveling process are realized, the wearing is comfortable, the energy storage is low and the practicability is strong.

The invention provides a concrete-filled steel tubular high-pile tower footing structure of a tower crane and a construction method thereof, and belongs to the technical field of building construction. The concrete-filled steel tubular high-pile tower footing structure comprises four cast-in-place piles (Phi600-800) which have embedded length of 40m and are arranged at a substrate, and steel pipe columns (Phi600) which have thickness of 8mm and wrap the cast-in-place piles, wherein, bearing platforms are arranged on the upper ends of the steel pipe columns in a matching manner, the length of the lower ends of the steel pipe columns which extend into foundation soil is 2400-2480mm, the length from the upper ends of the steel pipe columns which are exposed out of the foundation soil to the bottom of the bearing platforms is 4-7m, and the length of the tops of the steel pipe columns which are anchored into the bearing platforms is 150mm; and first concrete layers are poured into the cast-in-place piles and the steel pipe columns, and second concrete layers are poured into the bearing platforms. The concrete-filled steel tubular high-pile tower footing structure and the piles for preliminary engineering can be constructed at the same time without taking up the construction period, and the tower crane can be completely installed before large-area earth excavation so as to be used in advance during the construction process of bottom plates in a basement. The structure has the advantages of simple structure, good safety, short construction period, less steel consumption and low cost, and is convenient in construction.

Provided is a wearable lower limb exoskeleton rehabilitation robot, which comprises a waist-hip joint device, a legs continuous adjusting device, and an ankle joint-foot device, wherein the waist-hipjoint device comprises three degrees of freedom of fore-and-aft flexion and extension, inside-and-outside extension and inside-and-outside rotation, so that flexibility of motions and comfort of wearing are improved, diversity of motion gait is increased, and comprehensiveness of rehabilitation training strategies is improved; the legs continuous adjusting device adopts a positive and negative screw rod continuous adjusting mode, so that a matching accuracy between a human body and the exoskeleton robot and use efficiency of a motor are improved, abrasion of parts of the exoskeleton robot is reduced, and service life of the exoskeleton robot is prolonged; and the ankle joint-foot device reduces impact caused by external force on the ankle joint, and functions of saving labor and automatically resetting are achieved; and a buffer structure of the foot structure can reduce rigid impact force formed by ground reflection, so that the exoskeleton robot body is protected, and the comfort ofa wearer is improved.

The invention discloses a mechanical foot for a multi-foot robot. The physical mechanical structure is divided into two parts, one of which is a mechanical foot structure, the bottom of each supporting rod is in the form of a semi-sphere, three supporting rods with the supporting function are arranged in the middle of each supporting rod which is provided with a cylindrical body for containing themotor, the cylindrical body can be connected with the leg structure, two of which is a three-finger under-actuated connecting rod type mechanical arm claw, torsional springs are arranged between thefirst knuckle and the second knuckle and between the second knuckle and the third knuckle. The mechanical foot and the mechanical claw form a whole through the movement auxiliary constraint of a sliding block and a rod piece, the function switching of grabbing and supporting is realized through the switching of the foot claw structures, a driving system of the mechanical paw is built on the basisof the physical mechanical structure, the driving system is a linear stepper motor with a trapezoidal screw rod, the motor is controlled by a matched driver, and the motor driver is connected into a220V turn to 12V transformer.

The invention relates to a foot pad for a vehicle. The foot pad comprises an upper foot pad body and a lower foot pad body. A plurality of grooves are evenly formed in the upper surface of the upper foot pad body at intervals, the grooves are of a taper-foot structure, and a heating layer is arranged between the upper foot pad body and the lower foot pad body. A plurality of anti-sliding protruding blocks are arranged at the bottom of the lower foot pad body at intervals. The foot pad is reasonable in structure, convenient to manufacture, and flexible and reliable in use, a groove structure is arranged on the surface of the upper foot pad body, rubbish can be conveniently removed, and the anti-sliding protruding blocks are arranged on the lower foot pad body and have an anti-sliding effect. In winter, the heating layer is arranged between the upper foot pad body and the lower foot pad body and has a self-heating function, the temperature of the feet of a driver and passengers in the vehicle is improved, the comfortableness of the vehicle is improved, safety and reliability are achieved, and energy consumption is reduced.

A suspended supporting system for supporting a substantially rigid linear structure (2) such as a pipeline, a tramway, a walkway bridge, a transportation gallery, an underwater tunnel, etc. placed above the ground / seabed / riverbed, the system including: apparatus (1) attached to the linear structure, pulling the linear structure upward, generating upward vertical force of magnitude great enough for carrying downward vertical loads and lateral loads applied to the linear structure; and at least two guy ropes (5) placed at an angle with each other, upper ends of which are attached to the linear structure and lower ends of which are attached to a footing structure (7) placed on or anchored in the ground / seabed / riverbed.

The invention discloses a CuPd metal nano catalyst of a four-feet structure, and a preparation method of the CuPd metal nano catalyst, and also discloses a CuPd / C metal nano catalyst, a preparation method of the CuPd / C metal nano catalyst, and applications of the CuPd / C metal nano catalyst in fuel battery cathodic oxygen reduction. According to the CuPd / C metal nano catalyst, the surface of carbon black is loaded with the CuPd metal nano catalyst. According to the CuPd metal nano catalyst of a four-feet structure, electrons on copper atoms are transferred onto palladium atoms, and the electrons are gathered on the tips of the four-feet structure, so that electron density of tip palladium atoms is increased further, d band center of palladium atoms is reduced, the strong adsorption between palladium atoms and oxygen is reduced, and catalytic activity is increased.

Provided is a foot structure for a humanoid robot capable of effectively keeping its balance in a pause state or action. The foot structure includes a support; a plurality of lower structures having an upper member connected to a bottom of the support; a plurality of lower members having a plurality of independent portions each movably connected to the upper member; and a revolute joint for coupling the upper member and the lower member. Since a contact between the foot structure and the floor is smoothly made, a shock is prevented from being transferred to a body of the humanoid robot. Also, a vibration generated when the humanoid robot steps on the floor is eliminated, so that the humanoid robot can pose a stable and smooth gate.

The invention discloses a bionic two-toe mechanical foot having the capacity of foot bottom sensing. A mechanical system comprises a bearing toe, an auxiliary toe, a supporting rod, a transmission shaft and a connecting flange plate; a control system comprises a power module, a resetting module, a sensor module, a signal conditioning module, a microprocessor and a steering engine module; when foot bottom pressure of an instability region on the outer side of a foot bottom exceeds a set threshold value, the microprocessor converts a pressure signal into an electrical signal for driving a steering engine to rotate so that the auxiliary toe and the bearing toe can be separated by a certain angle, and an auxiliary supporting effect can be achieved; meanwhile, by demarcating priorities, whether the foot bottom is instable or not and the instability degree are judged, the separating angle of the auxiliary toe and the bearing toe is controlled, and an energy-saving effect is achieved. With the two-toe foot structure and sand-touch two-toe posture of an ostrich being a bionic model, mechanical design is combined with control, the stability condition of a foot is judged, the function of self-adaptation auxiliary supporting is achieved for the two-toe foot, and the stability, the smoothness and the energy-saving performance of a foot-type robot are improved during walking.

An adjustable table includes a table board, an inclining structure, a supporting structure, and a foot structure. The table board is provided with a pivoting portion on one end thereof. The inclining structure is provided with a mounting portion on one end thereof, and the mounting portion is pivotally combined with the pivoting portion of the table board, such that the table board and the inclining structure pivotally sway to open and close. The supporting structure is combined between the table board and the inclining structure for supporting and fixing the table board and the inclining structure. The foot structure is pivotally combined with the inclining structure, such that the inclining structure sways toward the foot structure.