551 results about "Rigid structure" patented technology

The derrick type continuous oil pipe integrated sidetrack drilling operation device is provided with a base, a derrick, an injection head installation support, an injection head, a lifting oil cylinder, a hydraulic clamp and a remote operation room, one side of the derrick is fully opened, the derrick and the base are both of a lightweight rigid structure, and the injection head is installed at the top of the derrick for remote control. After the base is arranged at a wellhead and is unfolded and installed, one side of the base is connected with the lifting oil cylinder, the other side of the base is in butt joint with the ramp and the pipe rack, the derrick is rapidly erected through the lifting oil cylinder, and after the injection head is hoisted to the top of the derrick, the injection head is rapidly installed and subjected to alignment adjustment through the injection head installation support and the adjusting structure. Meanwhile, the tool rod and the elevator are arranged at the injection head, the tool rod is pulled and placed through the injection head, an oil pipe column and a sucker rod can be independently lifted or lowered, the oil pipe column and the sucker rod are pushed into a ramp from one side of an opening of a derrick, integrated sidetrack drilling operation of the coiled tubing is achieved, and sidetrack drilling efficiency and operation safety of the coiled tubing are remarkably improved.

The invention discloses a deformation and bearing integrated modular rope-driven flexible mechanical arm and a self-sensing method thereof.The flexible mechanical arm comprises a driving mechanism and a variable-rigidity flexible mechanical arm body, the variable-rigidity flexible mechanical arm body comprises a rope, a corrugated pipe and elastic units, and the multiple elastic units are filled in an inner cavity of the corrugated pipe; the corrugated pipe is provided with a rope guide hole extending in the axial direction of the corrugated pipe, one end of the rope is fixedly connected with the power output end of the driving mechanism, the other end of the rope penetrates through the rope guide hole and is fixedly connected with the corrugated pipe, and when the driving mechanism works, the rope can be driven to move, and then the mechanical arm is pulled to deform. The flexibility of the mechanical arm is improved through fusion of active deformation and a bearing function, additional rigid structure supporting is not needed, and the overall design is simplified; and the bearing capacity and rigidity are adaptively improved through blocking of the elastic units, and the complexity of the driving system is reduced. Meanwhile, the mechanical arm is provided with a self-sensing system, the state of the mechanical arm can be monitored in real time, and the control precision is improved.

The present disclosure provides a camera calibration method based on vehicle localization, mainly considering that a vehicle is not of an ideal rigid structure, and shaking of a vehicle body during operation, uneven road surfaces, or different loads will cause variations in extrinsic parameters of a camera system, resulting in perceptual information errors. Therefore, through perceptual information from a fused image, an inertial measurement unit, a speedometer, and the like, combined with the road and marking information provided by a high-definition map, the relative motion between the vehicle body and a vehicle chassis is simultaneously described with a mass-spring-damper model, so as to complete the determination of six-degree-of-freedom positions of the vehicle body and the vehicle chassis, and finally the extrinsic parameters of cameras are immediately calibrated with the vehicle chassis as reference coordinates.

The invention discloses a 3D packaging structure and a manufacturing method thereof, and the method employs a glass wafer as a first carrier plate, and solves the problems of reliability and signal interference caused by the mismatching of thermal expansion coefficients of an organic material adapter plate and a Si-based silicon bridge chip. In S1, a blind hole is etched by taking a glass wafer as a base material, and Cu is metallized and filled, and the thermal expansion coefficient of glass is similar to that of a silicon bridge, so that the risk of thermal stress deformation is reduced. And S2, through groove etching, temporary carrier plate bonding and thinning, a through groove hole is formed, and the rigid structure of the glass carrier plate maintains the stability of the packaging structure during high-density integration. And S3, the silicon bridge Die is embedded into the through groove hole, the low thermal expansion characteristic of the glass is well matched with the silicon bridge, the interface stress is reduced, the dielectric property of the glass support plate is excellent, the signal dielectric loss is reduced, and the signal integrity is improved by matching with the silicon bridge Die. And S4, after the functional chip is mounted on the adapter plate, the glass-based adapter plate ensures reliable connection, signal attenuation distortion is inhibited, and a reliable packaging scheme is provided for high-density integration.

Cambering device for a profiled sail including: —an elastically deformable semi-rigid structure, including: —two length sections, extending one in front of the other, forming respectively a first length section secured to a first surface of the profiled sail, and a second length section secured to a second surface of the profiled sail, —a U-shaped connecting section, connecting together the two length sections terminating at the trailing edge by a tensioning of one of the two free ends, —a spacing system configured for working in compression and in tension, for maintaining a separation between the two length sections, —the action of the actuator, connecting together the two free ends of the semi-rigid structure.

The invention relates to high-speed intelligent power pay-off equipment, which belongs to the technical field of cable manufacturing, and comprises a rack, a protective cover, a tension detection device, a wire coil allowance detection device, a power device, a clamping device, a lifting device and a control module, the rack is of an integral rigid structure and forms an installation foundation of the equipment, the protective cover is installed on the rack to form a safety protection space, and the tension detection device is connected with the power device. The tension detection device is arranged in the rack and used for detecting the tension of a cable in real time and outputting a first signal, and the wire coil allowance detection device is arranged on the rack and used for detecting the winding radius or allowance of a wire coil in real time and outputting a second signal. In the invention, through a double-signal fusion intelligent control strategy of tension closed-loop feedback and allowance change feedforward, and in cooperation with a high-rigidity rack, a lateral jacking clamping subsystem and an automatic lubricating subsystem, the problems of large tension fluctuation, unstable speed, poor universality and high maintenance cost of traditional pay-off equipment are fundamentally solved; and high-speed, high-precision and high-stability intelligent paying-off is realized.

The invention belongs to the technical field of satellite-borne optical remote sensing imaging, and relates to a multi-point flexible adhesive supporting structure of a large-aperture satellite-borne rectangular lens group and an integration method. The supporting structure comprises a rectangular mirror body, an integrated rectangular mirror frame and an anti-radiation back plate; the rectangular mirror body is embedded into the integrated rectangular mirror frame; the integrated rectangular mirror frame is detachably connected with the anti-radiation back plate; bonding ring assemblies are mounted on the periphery of the integrated rectangular mirror frame, and the four side faces of the periphery of the rectangular mirror body are fixedly connected with the bonding ring assemblies in a bonding mode; the lower side bonding ring assembly and the upper side bonding ring assembly are matched in a one-rigid-one-flexible mode, and the right side bonding ring assembly and the left side bonding ring assembly are matched in a one-rigid-one-flexible mode. And the one-rigid and one-flexible matching form is that one component adopts a rigid structure, and the other component adopts a flexible structure. The problems of high surface shape precision microstress, high stability, space radiation resistance, universality of a supporting structure and the like of an existing satellite-borne rectangular mirror body are solved.

The utility model discloses a rigid structure removing device for a photovoltaic module, which comprises a transmission mechanism, a guide mechanism and a material pressing mechanism, and a conveying surface for conveying materials is formed on the top surface of the transmission mechanism; a bearing surface corresponding to the discharging end of the conveying surface is formed at the top of the guide mechanism, and an inclined angle with a downward boundary is formed on the bearing surface relative to the conveying surface; the material pressing mechanism comprises a first material pressing part and a second material pressing part, a first material pressing part of the first material pressing part is parallel to the conveying surface and can move relative to the conveying surface, and a second material pressing part of the second material pressing part is parallel to the bearing surface and can move relative to the bearing surface; according to the scheme, rigid structures such as tempered glass and silicon of the photovoltaic module can be removed with low energy consumption and high efficiency, the structural integrity of an organic module (a PET backboard PVF film) can be kept, the obtained broken materials are broken glass, and glass, metal and PVF materials are convenient to separate in the subsequent unsealing process.

A propulsion assembly for an aircraft, the propulsion assembly having a jet engine having a fan casing and a central casing around a longitudinal axis and having a vertical median plane passing through the longitudinal axis, an attachment pylon having a rigid structure that takes the form of a box that has a front wall and an upper spar extending forwardly in respect to the front wall, a front engine attachment fixed between an upper area of the central casing and a lower end of the front wall, and a complementary front engine attachment fixed between an upper area of the fan casing and a front end of the upper spar.

The utility model discloses a collision detection device used for evaluating the obstacle identification capability of an intelligent mobile robot, which comprises a bottom plate, guardrails, a base frame, a simulation obstacle, a rigid structure cylinder, a force sensor and a camera, the bottom plate is provided with two guardrails to form a test area, the front part of the test area is provided with an initial test point of a detected robot, and the front part of the test area is provided with an initial test point of the detected robot. A base frame and a simulation obstacle are arranged on the rear portion of the testing area, the base frame is constructed to be of a frame type structure to form an avoiding outlet, a guide rail groove is formed in the simulation obstacle, a rigid structure cylinder is fixedly connected to the front portion of the force sensor, and a graduated scale parallel to a guardrail is installed on the bottom plate with the position where the rigid structure cylinder is located as a starting point. And a camera is arranged right above the rigid structure cylinder and is mounted on the base frame. According to the utility model, the minimum stopping distance when the mobile robot encounters an obstacle, the retreating distance when the mobile robot encounters the obstacle, and the collision force when the mobile robot encounters the obstacle can be detected.

The invention provides a YOLO-based aviation product assembly component instance segmentation system, which is characterized in that an improved SAC-YOLO model based on a YOLOv11 algorithm is used, an MSECA module is connected between an SPPF module and a C2PSA module in a backbone network of the SAC-YOLO model, and convolution in a C3k2 module is WTConv convolution; the convolution in the C3k2 module in the neck network is a DSConv convolution; therefore, the SAC-YOLO adopts the technologies of multi-scale feature fusion, special-shaped convolution, attention mechanism and the like, so that the detail features of the complex structure in the assembly scene can be more effectively captured; when the trained segmentation model is used for processing assembly elements with large form difference and slender and tortuous non-rigid structures such as a locking piece and the like observed from the front face and the side face, high segmentation precision can be kept; that is to say, the positioning precision of identifying the assembly component and the locking point is higher, the morphological characteristics of the assembly component and the locking point can be obtained, and the identification and segmentation of the components such as the parts and the locking point of the aviation assembly can be completed.

The invention discloses an insulating flame-retardant cable structure which comprises a cable core and an external protection tube wrapping the cable core. The external protection pipe comprises a plurality of rigid protection pipe units, flexible fireproof hinge pieces connected between the adjacent rigid protection pipe units and external connection sleeves wrapping the rigid protection pipe units and the flexible fireproof hinge pieces, and the rigid protection pipe units and the flexible fireproof hinge pieces are alternately connected in series to form a bendable structure. Through a composite structure formed by alternately connecting the rigid protection pipe units and the flexible fireproof hinge pieces in series, compared with an integral armored cable, the scheme has the advantages that excellent bendability is obtained while a high fireproof grade is kept, and the defect that a rigid structure is difficult to lay is thoroughly overcome. Compared with a pure flexible flame-retardant cable, the structural fire-resistant complete type under flame is realized through the segmented rigid-flexible composite structure, and the fatal weakness that a single polymer sheath shrinks, melts and cracks when encountering fire so as to cause defensive line collapse is avoided.

The invention discloses a composite board bonding strength detection device and detection method, and relates to the technical field of bonding strength detection. Comprising a base and a rack fixedly connected to the upper end of the base, first sliding grooves are formed in the inner side of the rack, a cross beam is fixedly connected between the first sliding grooves, a dynamometer is fixedly connected to the lower end of the cross beam, connecting bases are fixedly connected to the lower end of the dynamometer and the upper end of the base, and clamps are arranged at the ends, close to each other, of the connecting bases; the first-stage braking assembly is arranged in the first sliding groove, located between the upper end of the cross beam and the top of the rack and used for counteracting movement inertia of the cross beam; when instantaneous force is applied to the non-Newtonian fluid through the piston disc, the non-Newtonian fluid is rapidly gathered to form a rigid structure to improve the hardness, so that the displacement of the piston disc is prevented, the cross beam is prevented from continuously displacing when being subjected to inertia, the position fluctuation of the cross beam caused by inertia is reduced, the occurrence probability of overshoot reading and return stroke reading is reduced, and the accuracy of measurement is improved. And the accuracy of detection data is improved.

An audio-enhanced furniture system comprises: a furniture assembly having a partially acoustically transparent material, such as an upholstery fabric or a perforated, rigid structure that is perforated in order to be more acoustically transparent; and a speaker system positioned within the furniture assembly, the speaker system including a speaker covered by the partially acoustically transparent material. The speaker is configured to be tuned to compensate for sound being emitted from the speaker through the perforated partially acoustically transparent material.

The invention relates to the technical field of line defect identification, and discloses an overhead line defect intelligent identification and positioning system, which comprises a span reference system construction module for constructing a span reference system; the catenary fitting module is used for fitting a catenary curve; the wire temperature inversion module is used for obtaining the real temperature of the surface of the wire through inversion; the temperature-induced sag expectation calculation module is used for carrying out iterative solution to obtain temperature-induced sag expectation; the candidate position scanning module is used for scanning to obtain a candidate position set; and the defect positioning module is used for generating a positioning coordinate in the span reference system when the transverse and vertical displacement ratio of the candidate position is greater than or equal to the lead defect threshold value. According to the method, the real temperature of the surface of the wire is inversed, the temperature-caused sag expectation is constructed, the influence of the temperature on the sag is corrected, the normal sag change caused by the temperature is prevented from being misjudged as a defect or missed detection of a real defect is avoided, a noise reference is established by a tower cross arm and other rigid structures, the defect is judged in combination with physical noise, and the defect recognition accuracy is improved.

The invention relates to the technical field of stratified rock mass numerical simulation, and discloses a stratified rock mass numerical simulation method based on a hybrid progressive failure model, and the method comprises the steps: obtaining an engineering rock mass structural plane of a research area, and grading geological structural planes such as faults, rock veins and fractures of surrounding rock of an underground cavity based on structural plane features; through three-dimensional laser scanning, obtaining the spatial three-dimensional coordinates of each sampling point on the surface of the footrill, obtaining the point cloud of a measured object, and connecting adjacent discrete points; carrying out secondary sampling on the spliced point cloud data, carrying out plane fitting to obtain a structural plane occurrence, and constructing a footrill simulation model; analyzing the occurrence of the structural surface by the footrill simulation model to obtain a stratified rock mass value, and dividing the structural surface in the rock mass into a rigid structural surface and a weak structural surface according to the character, weathering degree, tightness degree and filler condition; and outputting the data to a cloud platform. According to the invention, manual intervention is reduced, and the safety, accuracy and efficiency of measurement are improved.

The invention belongs to the technical field of action recognition, and particularly relates to an electric power engineering construction safety early warning method and system, and the method comprises the steps: carrying out the threshold segmentation and Hough straight line detection of a monitoring image of an electric power engineering construction site, obtaining a rigid support structure set, obtaining a scene instantaneous motion potential index according to the optical flow vector of a visible key point, and carrying out the calculation of the scene instantaneous motion potential index. Constructing a human body and rigid structure interaction stability index in combination with the distance between a visible key point in the possible contact set and the rigid support structure, calculating a posture risk bias factor, complementing the key point by using a graph convolutional network, and correcting a preliminary complete posture estimation result according to the posture risk bias factor and a vector representing gravity influence, so as to obtain a posture estimation result. And determining the position of the human body centroid key point according to the correction result for calculating the vertical acceleration of the human body centroid key point and performing personnel falling risk judgment. According to the method, the problem that the graph convolutional network model generates the pseudo-true attitude under the shielding of the key points is solved.

Systems and methods are provided for performing Doppler (phase-sensitive) optical coherence tomographic vibrometry measurements involving the vibrometric response of a rigid structure to an acoustic stimulus, such that the impact of speckle noise on a calculated vibrometric measure is reduced. Detected signals are processed to determine a depth range associated with the rigid structure, and to provide sampled time-dependent phase data encoded with the vibratory response of the rigid structure during application of the acoustic stimulus. The sampled time-dependent phase profile is processed to generate a vibrometric measure characterizing the rigid structure, based on non-uniformly-weighted contributions from one or more subregions within the depth region associated with the rigid structure (and optionally one or more time windows). The contribution from each subregion may be dependent on a depth-domain intensity measure associated with the subregion, where each subregion may be sufficiently small to encompass speckle-induced spatially-dependent changes.

The offshore wind power climbing device and method based on the automatic rope ladder comprises the rope ladder, the rope ladder is wound by a winch for rope ladder storage, the winch for rope ladder storage is installed on a truss platform, a guide wheel support is arranged on the truss platform, and a rope ladder guide wheel assembly is installed on the guide wheel support; the truss platform is of a frame structure and used for providing a berthing space for ship berthing. The truss platform is provided with a platform for people to move; a channel or a window or a space for people to pass up and down is arranged below the rope ladder guide wheel assembly; the winch for rope ladder storage lifts or lowers the personnel through the rope ladder, and then the personnel can climb and lean against the winch. The flexible rope ladder is adopted to replace a rigid structure, and the risk that people are pinched due to rigid collision between a ship and the boarding and leaning device is avoided; the rope ladder is matched with a double-hook safety belt for hooking, and the hidden danger of falling into water is reduced by combining the layout that the working face is located on the deck.

The invention relates to the field of TPU supercritical foaming materials, in particular to a high-wear-resistance TPU supercritical foaming material and a preparation method thereof, and aims to solve the problem of wear resistance of the TPU supercritical foaming material. The preparation method comprises the following steps: taking modified polyurethane as a main raw material, mixing a modified nucleating agent, a modified cross-linking agent and other auxiliaries, adding the mixture into a double-screw extruder for mixing, and then carrying out supercritical foaming, the modified polyurethane has excellent wear resistance and also has relatively high tensile strength and tear strength; the excellent impact resistance and wear resistance of UHMWPE can effectively transfer stress, and the rigid structure enables the acting force between molecular chains to be stronger; the introduction of epoxy resin further enhances the thermal stability of a cross-linked network; the modified nucleating agent indirectly or directly improves the wear resistance of the material by optimizing the foam structure and improving the mechanical property of the material; the modified cross-linking agent not only can improve the foam hole quality by regulating and controlling the melt strength, but also can optimize the material performance through an amide group.

The invention provides an intelligent construction safety monitoring system and method for a U-shaped stacked box rigid frame aqueduct, and the system is suitable for the U-shaped stacked box rigid frame aqueduct for hanging basket construction, and comprises a sensing layer which is used for collecting the stress state of a hanging basket; the environment monitoring unit is a micro weather station mounted on an upper cross beam of the hanging basket; the posture monitoring unit is used for monitoring the lateral and longitudinal inclination angles of the hanging basket in real time; the execution layer comprises a catenary anti-overturning device arranged behind the rear anchor point of the hanging basket, the catenary anti-overturning device comprises a hinged steel chain, and the hinged steel chain and the foundation anchoring end form a catenary structure; the control layer comprises an edge computing terminal and a threshold library in which early warning thresholds are stored, and the edge computing terminal is used for receiving the data of the sensing layer in real time, performing multi-source data fusion analysis and judging whether an early warning or emergency mechanism is triggered or not according to an analysis result; and the interaction layer comprises a visual platform, and the visual platform is used for carrying out fusion display on the monitoring data and the BIM model and presenting the risk level in a color coding mode.

The invention relates to the field of medical technical instruments, and particularly discloses medical clinical pipeline fixing equipment, a first connecting rod and a second connecting rod are in sliding connection to form a height-adjustable telescopic supporting structure, and height locking is achieved through a limiting bolt and a locking shifting block; multiple sets of sliding blocks are configured to slide on a sliding rod, the top of each sliding block controls the displacement range through a limiting block and a locking rotary rod, the bottom of each sliding block is connected with a universal adjusting spherical hinge structure composed of a ball seat and a ball head, the angle is fixed through a locking bolt, a rotary knob controls a transmission shaft to drive a four-piece type shrinkage sleeve to clamp a pipeline, and a pressure sensor is integrated on the inner wall to monitor the clamping force in real time. A modular mounting seat is arranged at the bottom of the device to adapt to various clinical scenes, flexible fixation of multiple pipelines is achieved through height, horizontal and angle three-dimensional adjustment in combination with intelligent pressure feedback and modular design, and the problems that a traditional rigid structure cannot adapt to body position changes and is prone to pipeline damage are effectively solved; and the clinical operation safety and efficiency are obviously improved.

The invention belongs to the field of robots, and particularly relates to a three-degree-of-freedom rigid-flexible coupling dexterous finger and a dexterous hand, and the dexterous finger comprises a finger knuckle module, a double-end spherical hinge connecting rod, a palm inner finger driving module, a driving transmission mechanism and an arm inner finger driving module. By fusing a rigid space connecting rod mechanism and a flexible driving transmission mechanism, the contradiction that a traditional rigid structure lacks flexibility and a flexible structure is insufficient in rigidity is ingeniously solved. Two degrees of freedom of flexion and extension and adduction and abduction of fingers at metacarpophalangeal joints are realized by utilizing a spatial connecting rod mechanism formed by a knuckle supporting frame, a proximal phalanx, a deflection transverse shaft and a double-end spherical hinge connecting rod; meanwhile, the power of the finger driving module in the arm is efficiently transmitted to the interphalangeal joints through the driving transmission mechanism, the middle joint and the distal phalanx are driven to achieve coupling or self-adaptive buckling, and therefore the third degree of freedom is obtained, and the problem that the contradiction exists between insufficient flexibility of a traditional rigid structure and insufficient rigidity of a flexible structure is solved.

One embodiment relates to an orthopedic precast that, upon an application of heat of a prescribed level while the orthopedic precast is worn adjacent to a targeted body part of the patient, transitions into an orthosis that conforms with the body part. The orthopedic precast includes a first portion and an interconnect. The first portion is formed of interwoven strands of a first thermoplastic material having a first melting temperature. These interwoven strands forming a pathway within the first portion. The interconnect is positioned within the pathway, wherein the interconnect is configured to receive power and radiate heat based on current flowing through the interconnect. Responsive to the interconnect supplying radiating heat of at least the first melting temperature, the first thermoplastic material partially melts and, upon subsequent cooling, the first portion transitions from flexible material into a rigid structure of the orthosis.

The utility model discloses a craft door lock suitable for an armored car door, which comprises a lock body mechanism fixedly arranged at the corresponding position of a body in white and a lock hook mechanism fixedly arranged at the corresponding position of the car door. The lock body mechanism comprises a mounting plate, a connecting screw rod, a lock rod and a limiting assembly, and the mounting plate is fixedly arranged on a body in white; the connecting screw rod is vertically and fixedly arranged on the mounting plate, one end of the lock rod is rotationally connected with the connecting screw rod, and the limiting assembly is in threaded connection with the connecting screw rod, makes contact with the two sides of the lock rod and limits rotation of the lock rod. The latch hook mechanism comprises a temporary handle, a transverse groove and a limiting groove, wherein the transverse groove and the limiting groove are formed in the temporary handle. During locking operation, the automobile door is tightly closed, the lock rod is rotated to enable the other end of the lock rod to be meshed with the limiting groove to prevent horizontal displacement of the lock rod, the limiting assembly is rotated to limit left-right displacement of the lock rod to prevent rotation of the lock rod, and therefore the automobile door is locked. According to the technical door lock, the vehicle body and the vehicle door are locked through a rigid structure, operation is easy, the locking effect is good, and the technical door lock can be recycled for a long time.

The invention discloses an intelligent clamping jaw special for a wafer box with an anti-falling protection function, the intelligent clamping jaw comprises an assembly plate, a main plate frame, a left clamping plate and a right clamping plate, the assembly plate is fixed on the end face of one side of the main plate frame, the assembly plate is connected with an external mechanical arm, and the left clamping plate and the right clamping plate are slidably connected to the left side and the right side of the main plate frame respectively; the opposite faces of the left clamping plate and the right clamping plate are each provided with a lifting plate, and each lifting plate is formed by combining lifting blocks. Correlation switch sensors are symmetrically arranged on the front side and the rear side of the lifting plate on the opposite surfaces of the left clamping plate and the right clamping plate; a clamping sensor is arranged in each lifting block; the left clamping plate and the right clamping plate can elastically deform, are of a straight plate type rigid structure in common clamping use and can restore to an arc-shaped structure from the straight plate type structure during emergency triggering, the holding effect on the wafer box is achieved, and anti-falling protection in the wafer box transportation process is achieved.

The application discloses a soil-rock dam reinforcing and enhancing structure for preventing over-standard overflow dam break and a construction method thereof. The structure comprises a soil-rock dam filling body, a vertical anti-seepage core wall arranged in the soil-rock dam filling body, and a composite high-strength fiber three-dimensional membrane arranged on the surface of the dam slope after regulation. The membrane body is unfolded along the slope surface and is reinforced by a pressing plate type fixing anchor bolt and a fiber membrane three-dimensional rivet. The row-to-row spacing of the fixing anchor bolt is 20-50 cm, so that the composite membrane is tightly attached to the dam body. The rigid structure and the flexible protection material are organically combined, the dam body's erosion resistance and durability are significantly improved while the flood discharge capacity is ensured, the construction method is simple, the cost is low, and the method is suitable for flood control reinforcement and safe operation of various soil-rock dams.

The application relates to a foot end structure, a supporting leg assembly and a robot, and the foot end structure comprises a foot end part, a foot bottom buffer, a fastening assembly and a supporting part. The application is characterized in that a second accommodating space is arranged in the foot bottom buffer, at least part of the side wall of the second accommodating space forms a foot bottom connecting part, a supporting part is arranged in the second accommodating space, the supporting part is arranged opposite to the foot bottom connecting part, and the supporting part is connected with the other side of the abutting part. In this way, the abutting part can be limited to move in the second accommodating space, so that the problem of low assembly efficiency caused by the movement of the first fastening part in the process of fixing connection of the second fastening part and the first fastening part can be avoided or improved, and the connecting strength between the foot bottom connecting part and the locking part is improved. In addition, the foot bottom connecting part is clamped and fixed between the locking part and the abutting part of the rigid structure, so that the locking force is further improved, and the problem of falling off of the foot bottom buffer is improved or avoided.

An electromechanical system includes a frame; an element movable relative to the frame, the movable element comprising a membrane and a rigidifying structure for the membrane; a capacitive measurement or actuation device; a first transmission device for a movement between the movable element and the capacitive measurement or actuation device, the first transmission device being rotatably movable relative to the frame by a plurality of first pivot hinges; in which system: a first opening is arranged in the movable element; the frame includes a first island extending into the first opening; and the first transmission device is connected to the first island via one of the first pivot hinges.

The utility model discloses a kind of water heater inner container casted porcelain coil fixing device, including water heater inner container and inside spiral casted porcelain coil.The coil of spiral casted porcelain coil is externally equipped with the pull bar of multiple surface casted porcelain, pull bar is evenly distributed along the coil spiral direction vertically, and its bottom is equipped with metal welding portion;Spiral casted porcelain coil below is provided with integrally-formed connecting rod, including sequentially connected first connecting section, second connecting section and U-shaped bending section arranged obliquely.The U-shaped bending section is fixedly connected with the metal welding portion of pull bar bottom, and the first connecting section is fixedly connected with connecting rod fixed seat arranged on the inner wall of water heater inner container.The utility model is through the middle part auxiliary support system of pull bar and connecting rod composition, and the fixed point of coil two ends jointly constitute stable multi-point linkage rigid structure, effectively inhibit the swing and stress in the process of transportation and use, prevent the porcelain explosion of welding portion and base material cracking, improve the reliability and service life of product.