961 results about "Rigid structure" patented technology

Wooden Collapsible Tent / Foldable Sleeping Cabin is disclosed. It is strong and holds up in the wind well, and easy to disassemble this rigid structure without any tools when not in use. It's not in the way when you don't need it. You may pull the middle rod of hinges out to fold and pile each piece on the top of the base and move to another location or do both: open the latches and take the mid rods out from the hinges to store. There are many ways for carpenters to build sleeping cabins, but the basic idea here, is to use bolt latches and door hinges to make a hard structure of wooden tent / sleeping cabin more flexible to use, to take apart, to store, and to look better, without using any tools. And it is only seven pieces! Just slide the latches and hinge rods in!

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 fan casing and a front end of the upper spar, and a complementary front engine attachment fixed between an upper area of the central casing and a lower end of the front wall.

A propulsion assembly for an aircraft, the propulsion assembly having a jet engine, an attachment pylon having a rigid structure, and an extinguishing system. The extinguishing system is located in a front position relative to the rigid structure, the extinguishing system being positioned between the rigid structure and the jet engine.

Hanging tool storage devices, shown as tool boards are provided. In some embodiments, the tool board includes a base and a plurality of pocket panels adjustably coupled to various locations of the base. In certain embodiments, the base includes a plurality of base members that releasably couple to one another to form different base shapes and sizes. In other specific embodiments, the pocket panels are rigid and modularly connect to one another to form a rigid structure.

A rigidizing device includes an elongate flexible tube, a braid layer positioned over the elongate flexible tube, an outer layer over the flexible tube and the braid layer, and an inlet between the elongate flexible tube and the outer layer and configured to attach to a source of vacuum or pressure. The braid layer has a plurality of strands braided together at a braid angle of 5-40 degrees relative to a longitudinal axis of the elongate flexible tube when the elongate flexible tube is straight. The rigidizing device is configured to have a rigid configuration when vacuum or pressure is applied through the inlet and a flexible configuration when vacuum or pressure is not applied through the inlet. The braid angle is configured to change as the rigidizing device bends when the rigidizing device is in the flexible configuration.

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 relates to the technical field of petroleum engineering downhole tools and hydraulic anchor equipment, in particular to an anchoring pressure adjustable hydraulic anchor which comprises a body with a spherical mounting cavity, a plurality of groups of elastic anchor flukes, a universal cylinder core and a flexible diaphragm. A hydraulic cavity is formed in the universal cylinder core, a flexible diaphragm is fixed to the outer side, and the elastic anchor flukes are driven through hydraulic through holes. Under hydraulic driving, the flexible diaphragm expands to push the elastic anchor flukes to stretch out to achieve anchoring. And the universal cylinder core allows angular deflection, so that the adaptability to a bent or irregular shaft is enhanced. The flexible belt is connected with the universal cylinder core and the body to adapt to deviation, and the limiting ring is arranged to prevent excessive expansion from affecting work. The upper connecting cylinder and the body are detachably connected in a sealed mode, and maintenance is convenient. By means of the design, the problem that a traditional rigid structure hydraulic anchor is poor in angle self-adaptive capacity under complex geological conditions is solved, anchoring stability and environmental adaptability are improved, and the hydraulic anchor is suitable for various complex underground conditions.

An assembly including a profiled sail, a mast and several cambering devices for the profiled sail. The cambering devices including a semi-rigid structure, elastically deformable, including two length sections, extending in front of one another, 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, interconnecting the first length section and the second length section while extending them. A system reduces the surface area of the profiled sail exposed to the wind, and configured to reduce the surface area of the profiled sail including several sections of the profiled sail as well as structural cambering devices.

The present application is drawn to a system and method, as well as method for manufacture of a device and system for determining the position and orientation of at least one magnetic field sensor comprising: a rigid structure comprising an array of at least five electromagnetic coils; at least one wire that connects to and powers the electromagnetic coils; wherein the placement and orientation of the electromagnetic coils on the rigid structure are predetermined; wherein the electromagnetic coils, each having a predefined magnetic moment per unit current, are constructed with a printed circuit board (PCB) comprising at least one conductive layer; and wherein the system is configured such that a stray magnetic field emanating from the at least one, as measured at the location of the at least one magnetic field sensor, generates substantially lower magnetic field intensity than that produced by each of the at least five electromagnetic coils.

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.

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.

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 invention relates to the field of electric vehicle design, in particular to an electric vehicle charging port area design method and system, which comprises the following steps: selecting a body-in-white structure unit corresponding to a charging port area, and arranging a rigid structure on the body-in-white structure unit corresponding to the charging port; loading force generated when the charging gun is inserted into and pulled out of the charging port is obtained and applied to the rigid structure, and stress deformation displacement between the rigid structure and the body-in-white structural unit and the residual deformation value of the body-in-white structural unit are recorded so that the structural design of the charging port area can be updated. The charging port is simulated by the rigid structure, the charging port area is simulated by the body-in-white structure unit, the loading force is applied to the rigid structure, the plugging of the charging gun on the charging port is simulated, and the stress deformation displacement and the residual deformation value between the rigid structure and the body-in-white structure unit are calculated. The relative displacement and plastic deformation of the charging port area are analyzed, whether the current structural design is reasonable or not is analyzed, and scientific basis and analysis are provided for the structural design of the charging port area.

The invention discloses a rigid frame continuous beam bridge construction monitoring method based on digital twinning. The rigid frame continuous beam bridge construction monitoring method comprises the steps that S1, a construction simulation model of a continuous beam bridge is established; s2, establishing a construction site three-dimensional environment model; s3, fusing the three-dimensional environment model and the construction simulation model to obtain a construction dynamic virtual model; s4, establishing a continuous beam bridge construction structure analysis and calculation model; s5, training the continuous beam bridge construction structure analysis and calculation model by using the construction structure information obtained in real time to obtain a prediction model; s6, acquiring three-dimensional point cloud data of the continuous beam bridge in real time, and establishing a three-dimensional point cloud model; s7, fusing the prediction model, the three-dimensional point cloud model and the construction dynamic virtual model to obtain a continuous beam bridge digital twinborn model; and S8, according to the digital twin model of the continuous beam bridge, checking construction monitoring data in real time, and realizing construction monitoring operation of the continuous beam bridge. According to the rigid frame continuous beam bridge construction monitoring method based on digital twinning, the construction quality can be improved, and the construction safety is guaranteed.

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 fan casing and a front end of the upper spar, and a complementary front engine attachment fixed between an upper area of the central casing and a lower end of the front wall.

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 relates to a truss type large-blade wind-solar power generation device, which adopts a single truss as a supporting force arm to fix fan blades and transmit torque to a shell rotor large pinwheel to construct a wind wheel, and the whole structure is a rigid structure, good in stability and small in generated vibration and noise. The diameter of the vertical wind driven generator can be oversized, so that the single-layer generating capacity is improved; the suspension type wind wheel is light in weight and small in friction force when the wind wheel operates; the installation is convenient, and the production cost is reduced; when wind exists, wind power is gathered through the wind gathering cyclone, wind coming from any direction is gathered to one side to form thrust, and resistance of the rotation side is reduced. And the power generation glass cyclone plates are arranged on the cyclone tower frame, so that wind collection and wind gathering can be realized, and solar power generation can also be carried out. The device is high in power generation rate, safe and reliable in operation, easy to install and maintain, long in service life, low in noise and low in power generation cost.

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 utility model relates to a nodular cast iron pipe cement lining internal grinding walking mechanism which comprises a grinding assembly. The walking frame is of a rigid structure with the side face in an N shape, the two ends fixed, the lower portion provided with a gap in the travel direction of the nodular cast iron pipe cement lining internal grinding walking mechanism and the upper portion provided with a plane. The trolley assembly comprises a trolley base, a connecting arm and an adjusting arm, the trolley base, the connecting arm, the adjusting arm and a connecting shaft form a closed annular structure, and the trolley base, the connecting arm, the adjusting arm and the connecting shaft are in a wrapping posture and embraced on the walking frame; the driving device is located on the trolley base and provides power for movement of the trolley base; compared with the prior art, the trolley assembly has the advantages that the trolley base is stabilized on the walking frame in a tree-embracing mode through the connecting arm, the adjusting arm and the connecting shaft, the stability of the trolley assembly in the whole movement process is improved, the grinding quality is improved, and adverse factors such as vibration generated by grinding are avoided.

A system of non-parallel folding planar cross-braces are adapted to naturally fold away from one another to provide a naturally rigid structure that requires little or no latching to provide a stable frame. An interlocking system that engages opposing pivot points of the cross-braces can be arranged to create a very rigidly connected frame. A variation of the system may allow for both a sling seat and an open frame for attached seating to utilize the opposing planar cross-braces.

The utility model discloses a suspension structure for indoor decoration, which relates to the technical field of indoor decoration and comprises a connecting rod. The number of the connecting rods is four, and the outer walls of the four connecting rods are all in threaded connection with L-shaped fixing frames. And the reinforcing assembly is used for reinforcing the stability of the top space of the building. The limiting plates are of rigid structures, the two limiting plates are oppositely connected to the inner side wall of the L-shaped fixing frame in an inserted mode, the L-shaped fixing frame is of an L-shaped structure, and the spherical bases used for connecting the limiting plates and the L-shaped fixing frame are fixedly arranged on the inner side wall of the L-shaped fixing frame. After the spherical seat is inserted into the limiting groove, the L-shaped fixing frame can slide on the side face of the limiting plate, the distance between the L-shaped fixing frame and the limiting plate is freely adjusted, the reinforcing assembly is matched with the connecting rod and the L-shaped fixing frame, the strength of an indoor roof is enhanced, and the phenomenon that a ceiling is uneven due to deformation caused by uneven stress when a keel is supported is avoided; and the aesthetic property and the safety of the indoor space are influenced.

The invention discloses an outer-rigid and inner-flexible stadium annular roof structure system and a construction method thereof. The system comprises an outer rigid structure and an inner flexible structure. The peripheral rigid structure comprises supporting columns, V-shaped supporting pieces and a grid frame. The supporting columns are radially distributed on the outer ring of the annular roof structure around the center of the annular roof structure. The V-shaped supporting pieces correspond to the supporting columns one to one and are located on the inner sides, opposite to the supporting columns, of the roof structure. The grid frame is fixed to the top ends of the supporting columns and the V-shaped supporting pieces. The inner flexible structure comprises an annular cable and a radial cable; the ring cable is arranged on an inner ring of the roof structure; one end of the radial cable is fixed with the V-shaped supporting piece, and the other end is fixed with the ring cable. A giant outer pressing ring form of a traditional cable bearing structure is abandoned, the peripheral rigid structure and the inner surrounding flexible structure are combined, the rigidity of the peripheral rigid structure is used as a support of the flexible structure, the stress mode of the grid frame structure is improved, the rigidity of the inner surrounding cable structure is improved, and the steel consumption of the peripheral rigid structure is reduced.

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.