81results about How to "Improve posture" patented technology

The invention discloses a seven-degree-of-freedom mechanical arm inverse kinematics solving method, system and device based on numerical iteration. The method comprises the steps that S1, a D-H kinematics model of a mechanical arm is established based on a joint configuration of the seven-degree-of-freedom mechanical arm; s2, calculating a Jacobian matrix according to the joint angle sequence; s3, introducing a weight matrix to suppress the joint speed at the edge of the joint range; s4, introducing a damping factor, and calculating to obtain an optimized Jacobian pseudo-inverse matrix; s5, the pose error between the expected tail end pose and the current tail end pose of the tail end actuator of the mechanical arm is calculated; s6, converting the pose error into a joint angle adjustment amount by using the optimized Jacobian pseudo-inverse matrix to obtain a joint angle iterative formula; and S7, based on the pose error, the joint angle of each rotating joint of the mechanical arm is determined through a numerical iteration method. According to the method, the problem of unstable solution of a traditional analytical method under the singular configuration can be avoided, and the calculation efficiency and the numerical stability are improved.

The invention provides a passive remote image read-write device and a device adjusting method, and relates to the technical field of remote image optical screens, the device comprises a frame assembly, a hinge, an optical module and a rigid skeleton assembly, the frame assembly comprises a first frame body, a second frame body and a third frame body; the hinge is connected to the frame assembly; the optical module comprises a first lens, a second lens and an imaging panel which are arranged on the frame assembly, a passive mode is adopted, geometric multiple image amplification is carried out on a target reading object through reflection and diffusion of projected light, and the rigid framework assembly is connected to the frame assembly and serves as a stress part for supporting and unfolding. The rigid framework assembly comprises two telescopic framework pieces which are symmetrically arranged on the two sides of the frame assembly. The device integrates multiple functions such as folding, passive technology and far image display, realizes compact folding and portability of the device, has the characteristics of compact structure, convenience in carrying and wide application scene, and meanwhile, ensures the accuracy and high efficiency of amplified image display.

The invention discloses a tool point space pose control method and a tool motion control device, and relates to the technical field of robot operation and automatic production lines, a system setting module is used for determining target position coordinates of a tool point of a tool in a three-dimensional space, and a monitoring feedback module is used for monitoring the target position coordinates of the tool point of the tool in the three-dimensional space. The method comprises the following steps: monitoring to obtain an offset position and an offset which are changed due to various factors influencing the spatial pose, sequentially inputting the offset position and the offset into a data processing module, outputting to obtain an offset degree, an optimized attitude angle and a final coordinate axis, and driving a cutter point to move to a specified position and attitude by utilizing a driving module, the monitoring feedback module monitors the actual position and posture of a tool point in real time and provides a feedback signal to the data processing module for real-time control and adjustment, by introducing an innovative mechanism of dynamic compensation, posture optimization and closed-loop feedback, the problems and defects existing in the prior art are effectively solved, and the real-time control and adjustment of the tool point are achieved. And the precision, the stability and the adaptability of cutter position and attitude control are improved.

The utility model relates to a zero-gravity seat backrest collision energy absorption locking mechanism which comprises a backrest framework, a backrest connecting plate installed on the backrest framework and an angle adjuster installed on the backrest connecting plate, a fixed disc of the angle adjuster is installed on the backrest connecting plate, and a movable disc of the angle adjuster is connected with a cushion framework through a backrest energy absorption locking mechanism. The backrest energy absorption locking mechanism comprises an unlocking support connected with the recliner movable disc, the unlocking support is meshed with the rotating support, the cam locking piece drives the rotating support to be separated from the unlocking support, the exploder drives the cam locking piece to rotate and unlock, the pull wire is connected with the exploder and the cam locking piece, and the energy absorption friction disc is used for unlocking after a vehicle collides. The blocking point limiting mechanism is used for preventing the unlocking bracket from reversely rotating due to inertia force; the backrest energy-absorbing locking mechanism has the advantages that when the seat is collided at a zero-gravity posture position, the backrest can quickly return, so that the restraint protection on passengers is improved, and the injury caused by collision is reduced.

The utility model relates to the technical field of seat accessories, in particular to a lifting type seat framework. The front end of the seventh connecting rod is connected with an eighth connecting rod, the rear end of the seventh connecting rod is connected with a ninth connecting rod, and a tenth connecting rod is connected between the upper end of the ninth connecting rod and the middle section of the eighth connecting rod; an eleventh connecting rod is mounted at the lower end of the eighth connecting rod, and the upper end of the eleventh connecting rod is connected with a twelfth connecting rod and a connecting rod; a fourteenth connecting rod is installed at the rear end of the thirteenth connecting rod, the rear end of a first connecting rod in the pedal assembly is connected with the front end of the thirteenth connecting rod, and the lower end of a fifteenth connecting rod is connected with the rear end of a second connecting rod in the pedal assembly. The lower end of the fourteenth connecting rod is connected with the corner of the fifteenth connecting rod through a connecting plate. The flexibility and adaptability of the seat are improved, the requirements of a user for comfort, functionality and safety are met, blood circulation is promoted, the seat adapts to different workbench heights, the best posture is achieved, body pressure is reduced, and meanwhile the universality of the seat is improved.

The invention relates to the field of unmanned aerial vehicle coverage control and image quality optimization, and discloses an image quality optimization control method for covering an aerial photography area by a multi-unmanned aerial vehicle system, which comprises the following steps: S1, establishing an image quality function based on pixel density and camera view angle, the description module is used for describing the coverage effect of the multi-unmanned-aerial-vehicle system in the convex polygon area; s2, task area division: dividing the task area of each unmanned aerial vehicle by adopting an extended Voronoi segmentation method; and S3, designing a distributed controller, and realizing local optimal deployment of the unmanned aerial vehicle based on the designed distributed controller. A new image quality function is introduced, and the coverage control of the multi-unmanned aerial vehicle system is optimized by combining the pixel density and the lens distortion, so that the defect that the characteristics of an optical camera are not fully considered in the prior art is overcome, and the optimal deployment of the unmanned aerial vehicle is realized. And the quality of the aerial image and the complete coverage of the target area are obviously improved.

The present invention relates to a buoy system, comprising: a buoy body; and an anchoring device, which is arranged below the buoy body and is used to stabilize the buoy body, and the buoy body comprises: a main cabin, at the bottom of which the anchoring device is arranged; a mast, which is arranged above the main cabin; a plurality of brackets, which surround the side of the main cabin; and a plurality of outer wall components, which are fixed on the brackets and fixed on the outer side of the main cabin, and form a closed floating chamber with the brackets and the side of the main cabin. The present invention realizes structural modularization, simplifies the production process, and is convenient for transportation and loading and unloading. It can be deployed and recovered by small and medium-sized fishing vessels and engineering ships, reducing the cost of using ships, and optimizes its internal space structure. A variety of equipment can be installed in the buoy to meet monitoring requirements.

The utility model relates to a zero-gravity seat basin collision energy absorption locking mechanism which comprises a seat cushion framework, and two seat cushion energy absorption locking mechanisms used for quickly returning a seat cushion are symmetrically installed on the seat cushion framework. The seat cushion energy absorption locking mechanism comprises an unlocking support rotationally connected with the seat basin through a connecting rod supporting arm, a rotating support meshed with the unlocking support through teeth, a cam locking piece driving the rotating support to be separated from the unlocking support, an exploder driving the cam locking piece to rotate for unlocking and a pull wire connecting the exploder and the cam locking piece. The energy absorption friction disc is used for unlocking after a vehicle is collided, and the limiting mechanism is used for preventing the unlocking support from reversely rotating due to inertia force. The utility model has the advantages that the restraint protection on passengers is improved, and the injury caused by collision is reduced.

The utility model relates to the technical field of baby bath articles, and discloses a baby bath equipment cabinet with an inclined structure, which comprises a U-shaped fixing plate, the outer part of the U-shaped fixing plate is fixedly connected to the inner part of a cabinet body III, the inner part of the U-shaped fixing plate is rotatably connected with a rotary connecting shaft, and the rotary connecting shaft is fixedly connected with the inner part of the cabinet body III. A driving assembly is fixedly connected to the outer portion of the rotating connecting shaft, a rotating table top is rotatably connected to the top of the third cabinet body, a bath barrel is fixedly connected to the interior of the rotating table top, and a rotating connecting column is fixedly connected to the interior of the rotating table top. According to the baby bathing table, fatigue of parents during bathing of a baby is effectively reduced through the three-body type inclined structure, the baby can be kept in a comfortable posture during bathing, the rotating table top can be adjusted through the matched design of the air cylinder and the telescopic column, the posture of the baby in the bathing process is optimized, and the baby can be kept in a comfortable posture during bathing. The burden that parents need to frequently bend down and carry the baby in the bathing process is effectively relieved, and comfort and operation convenience are improved.

The utility model relates to an independent armrest with an electric adjusting function, which comprises an armrest body, armrest connecting brackets, a driving motor, an angle adjuster synchronizing rod, an angle adjuster and an armrest fixing bracket, and is characterized in that the armrest body is fixedly connected with the armrest connecting brackets positioned on two sides of the armrest body; the two armrest connecting supports are rotationally connected to the armrest fixing support through the two angle adjusters, the two angle adjusters are connected with the driving motor through the angle adjuster synchronizing rod and synchronously rotate under the driving of the driving motor, the armrest fixing support is fixedly connected to the bottom of a vehicle body, and the armrest body rotates on the armrest fixing support under the driving of the angle adjusters; the automobile armrest has the advantages that when an automobile is collided, corresponding strength support is provided for the joint of the armrest and the automobile body, so that a driver keeps a relatively good posture, and harm is reduced to the minimum. And meanwhile, the angle adjuster enables the shaking amount of the handrail to be reduced, and the riding comfort of passengers is greatly improved. Therefore, when the armrest is retracted, the armrest has the function of an automobile seat backrest.

The invention relates to the field of office chairs, and particularly discloses a seat structure which comprises a backrest, a seat plate, a headrest and armrests, and is characterized in that a limiting frame is rotationally connected to the armrests and comprises a transverse part, and the transverse part is higher than the upper surface of the seat plate when the limiting frame rotates to be horizontal; at the moment, the height of the upper surface of the seat plate and the transverse part is smaller than the thickness of the two thighs, and the limiting frame is rotationally connected with the handrail through a damping shaft to keep the transverse part horizontal. By the adoption of the technical scheme, after a user sits on the seat plate, the limiting frame is rotated, and when the limiting frame is horizontal, the height of the transverse part is smaller than the height of two thighs, so that when the user wants to cross legs, due to the effect of the limiting frame, the behavior can be limited, and the sitting posture can be improved.

A horizontal high-speed throwing device based on a steel cable winch comprises a throwing main machine and a lifting and pitching mechanism. The throwing main machine comprises a rolling angle driving mechanism with one end mounted on an outer support and the other end connected to a coupling bracket. The outer support and the coupling bracket are both fixedly connected to the front end of a base. A semi-open annular constraint track and a lifting and lowering elastic baffle of the throwing mechanism are fixed to the base. The base is mounted on a trolley body by screws. A buffer is fixed to the trolley body. A roller group is mounted at the bottom of the trolley body to support and drive the base to move axially along the rail. The trolley body is constrained by two sets of upper limit guide rails mounted on a machine base. A buffer mechanism is mounted at the end of the machine base. The lifting and pitching mechanism comprises a gear rack lifting mechanism. One end of the pitch angle hinge mechanism is connected to a support frame by a double hinge, and the other end is connected to a lifting platform. A rack locking mechanism is fixed to the support frame. The throwing main machine moves axially under the traction of winch drive systems I and II with a wiring function and a follower wheel group.

The utility model discloses a machine tool tailstock with a centre driving adjusting device, which relates to the technical field of machine tool tailstocks and comprises a base and a centre tailstock body, an adjusting sliding seat capable of sliding left and right is arranged on the surface of the base, and the centre tailstock body slides up and down on the upper side of the adjusting sliding seat. A left shear shank and a right shear shank are arranged between the center tailstock body and the lower side adjusting sliding seat, and a plurality of clamping teeth are fixed to the lower sides of the front end and the rear end of the center tailstock body. According to the machine tool tailstock adjusting device, the up-down height and the left-right position of the center tailstock can be rapidly adjusted, the center corresponds to the axis of a machined workpiece, rapid and accurate adjustment can be conducted according to the size and the shape of the workpiece, operation convenience and flexibility are improved, and the machining efficiency is improved. Through the structure between the locking bolt and the upper side screw rod, rapid and synchronous fixation after height and left-right position adjustment is achieved.

The invention relates to the field of spine correction, in particular to a multi-body-position continuous correction device based on scoliosis treatment, which comprises a seat, a backrest capable of turning backwards is hinged to the rear side of the seat, a liftable control panel is arranged in the middle of the backrest, a protective module is detachably arranged on the control panel, and the protective module is connected with the seat. The front portion of the protection module can be attached to the spine position of a patient, and a limiting module for fixing the spine of the patient is arranged on the front portion of the control panel. According to the multi-body-position continuous correction equipment based on scoliosis treatment, a patient can conveniently go out to move in the rehabilitation stage after correction, the sitting posture and the lying posture can be switched, the situation that the patient is switched back and forth on a bed and a wheelchair, and consequently muscles around the spine are pulled and painful is avoided, and when the posture of the patient is switched, the posture of the patient can be adjusted, so that the posture of the patient can be adjusted. The fixing device can be used for fixing and protecting the muscles of the patient conveniently, so that pulling of the muscles is reduced, comfort of the patient is guaranteed, and normal activity of the patient is guaranteed.

The utility model discloses an air-conveying type precise corn seed-metering device, which relates to the field of seeding equipment and is characterized by comprising a rear shell, a bearing, a seed-metering disc, a hole plug-in unit, a transmission shaft, a positioning screw, a centrifugal reducing seed protection plate and a front shell component, the seed-metering disc is positioned in a seed-metering disc mounting groove of the rear shell, the transmission shaft is connected with the seed-metering disc through a positioning screw, the hole insert is mounted in a straight hole groove, the variable-diameter centrifugal seed protection plate is mounted on the outer side of the seed-metering disc to prevent the hole insert from being thrown out, and the front shell is connected with the rear shell through a positioning hole. The corn seed filling device is simple and reliable in structure, the filling posture of corn seeds is optimized by applying dynamic reducing in the seed filling section, the seed carrying stability and the seed cleaning efficiency are enhanced by utilizing the inclined type hole plug-in, and the single-seed precision seeding quality is improved.

The utility model relates to the technical field of nursing equipment for hemiplegic patients, and discloses an improved turning-over pillow for nursing the hemiplegic patients, which comprises a head pillow, a waist pillow, an arm pillow, a leg pillow and a foot pillow, when a patient needs to be in a side lying position, the arm pillow and the waist pillow are the same pillow and are symmetrically arranged on the lower side of the head pillow, the waist of the patient is attached to the trapezoidal face of the waist pillow and fixed through the safety belt, and the upper healthy side or affected side legs of the patient are placed on the leg pillow in a stepping mode. The fluid pump is started to enable fluid of the leg pillow to flow to form the fixed leg groove fitting the legs of the patient, the foot of the affected side is placed in the foot groove of the foot pillow, and the size of the foot groove fitting the feet of the patient is determined according to the condition of the foot of the affected side of the patient, so that the whole patient is in a comfortable state; therefore, the patient keeps promoting blood circulation and relieving muscle fatigue.

The utility model discloses a correcting insole structure which comprises a buffer layer, gridding cloth evenly covers the surface of the buffer layer, the buffer layer is made of EVA buffer materials, a supporting layer is arranged on one side of the buffer layer, the supporting layer is made of polyurethane materials, an adjusting layer is arranged at the bottom of the face, away from the buffer layer, of the supporting layer, and the adjusting layer is arranged on the bottom of the face, away from the buffer layer, of the supporting layer. The utility model relates to the technical field of orthotic insoles, in particular to a pair of orthotic insoles, and aims to solve the problems that an existing orthotic insole is high in customized production cost and high in use cost for a patient, and an adjusting assembly is arranged in the adjusting layer and can be used for adjusting the orthotic effect of the orthotic insole. The shoe pad correcting device has the advantages that the adjusting assembly can adjust the correcting effect of the correcting shoe pad, so that the development cost of a mold is effectively reduced in the production and manufacturing of the shoe pad.

A novel forestry seedling cuttage box comprises a seedling cuttage box body, cuttage box bases, side fixing bases, telescopic outer sleeves, telescopic inner sliding rods, telescopic inner sliding rod inner holes, rotating hanging rods, rotating shafts, supporting hanging rods and sliding hanging rings, the lower portion of the seedling cuttage box body is connected with the cuttage box bases, and the multiple cuttage box bases are distributed at the four corners of the seedling cuttage box body; a plurality of air holes are formed in the bottom of the seedling cuttage box, the side fixing seats are connected with the seedling cuttage box, the two sets of side fixing seats are symmetrically arranged on the two sides of the seedling cuttage box, the side fixing seats are provided with side fixing seat inner grooves, the lower portions of the telescopic outer sleeves are matched with the side fixing seat inner grooves, the lower portions of the telescopic outer sleeves are inserted into the side fixing seat inner grooves, and telescopic outer sleeve side strips are arranged on the side faces of the telescopic outer sleeves. Telescopic outer sleeve side strip grooves are formed in the side faces of the side fixing base inner grooves, telescopic outer sleeve side strips are matched with the telescopic outer sleeve side strip grooves, the telescopic outer sleeve side strips are inserted into the telescopic outer sleeve side strip grooves, and the telescopic outer sleeve side faces are attached to the seedling cuttage box.

The utility model relates to a study desk convenient to use, which comprises desk legs, and a horizontal supporting platform is mounted at the upper ends of the desk legs; a supporting plate and a table plate are arranged on the supporting platform; the supporting plate is connected to the upper surface of the supporting platform in a sliding mode and can slide front and back in the width direction of the supporting platform, and a locking structure is arranged between the supporting plate and the supporting platform so as to lock the relative positions of the supporting plate and the supporting platform after the supporting plate slides in place; the front side of the table plate is rotatably connected to the supporting plate through a rotating shaft, and a meshing structure is arranged between the table plate and the rotating shaft so as to restrain the table plate and keep the rotating angle unchanged. The desktop of the study desk is designed into the supporting platform, the supporting plate and the desk plate from bottom to top, the supporting plate is in sliding connection with the supporting platform, and the desk plate is in rotatable connection with the supporting plate; the area of the whole desktop can be enlarged by sliding the supporting plate back and forth, so that more books and materials needing to be browsed can be placed; and the desk plate is rotated to a proper angle, so that a proper distance is always kept between the student and the book.

The utility model discloses a bubble film cutting device in the field of bubble film processing, which structurally comprises a workbench, an auxiliary feeding frame, an automatic cutting machine, an auxiliary pressing structure, a transmission belt and a traction structure, the auxiliary feeding frame is mounted on one side of the workbench, and the automatic cutting machine is mounted on the upper surface of one end of the workbench; the auxiliary material pressing structure is installed on one side of the automatic cutting machine, the transmission belt is installed below the workbench, the traction structure is installed above the transmission belt, and the auxiliary feeding frame, the automatic cutting machine, the auxiliary material pressing structure and the traction structure are matched to form the continuous air bubble film cutting and feeding device high in automation degree. According to the air bubble film cutting device, the air bubble film is in a tension state all the time, high cutting precision is guaranteed, and after the air bubble film is matched with the auxiliary material pressing structure through the auxiliary feeding frame, the flatness of the air bubble film can be trimmed, so that the air bubble film is kept in a good posture, and packaging work can be conveniently carried out.

The utility model discloses a sitting posture corrector which comprises a seat body and a correcting piece, one end of the seat body is provided with an installation cavity, the back face of the correcting piece is provided with a first installation seat and a second installation seat, the first installation seat and the second installation seat are just located in the installation cavity, a first positioning shaft is installed in the first installation seat, and a second positioning shaft is installed in the second installation seat. A first positioning shaft is mounted in the first mounting seat, a second positioning shaft is mounted in the second mounting seat, a first fixing hole and a second fixing hole are formed in the seat body, and the first positioning shaft and the second positioning shaft are correspondingly in interference fit with the first fixing hole and the second fixing hole; the first positioning shaft and the second positioning shaft are in clearance fit with the corresponding first mounting seat and the second mounting seat, and a reset piece is arranged in the mounting cavity. According to the utility model, the design is more reasonable, the structure is more optimized and simpler, the production and manufacturing difficulty is reduced, the production and manufacturing cost is more favorably reduced, and the batch production and manufacturing requirements are also favorably met.

The utility model discloses a convenient folding storage and one -way antiskid medical nursing pad, including nursing pad main part, and nursing pad main part includes nursing pad a and nursing pad b, and the inside of nursing pad a and nursing pad b is provided with filling cavity, the outer wall of nursing pad a and nursing pad b is provided with the extension line, and the center of nursing pad a and nursing pad b is provided with folding line, the surface of nursing pad main part is provided with one -way antiskid cloth, and the surface of one -way antiskid cloth forms the barb, the outer wall of nursing pad main part is assembled with the protective layer, and the inside of protective layer is sequentially stitched with waterproof layer, wear -resisting layer and high temperature resistance layer from top to bottom through cotton thread, the setting of this convenient folding storage and one -way antiskid medical nursing pad, through setting the extension line and folding line on the outer wall of nursing pad main part, can open and close nursing pad main part, thereby folding storage is convenient.

The utility model discloses a stable supporting turning locking assembly and an eye protection table, and relates to the technical field of eye protection tables, the stable supporting turning locking assembly comprises a supporting piece, a limiting assembly and a locking assembly, the supporting piece is movably arranged relative to an installation reference, the supporting piece is provided with a supporting position and forms a bearing end face, and the limiting assembly is arranged on the supporting position; when the supporting part is located at the supporting position, the bearing end face and the datum plane of the installation datum form an angle, the limiting assembly is arranged between the supporting piece and the installation datum so as to limit movement of the supporting piece when the supporting piece is located at the supporting position, and the locking assembly is connected with the supporting piece so as to lock the supporting piece and the limiting assembly and keep the supporting piece at the supporting position. Through the arrangement, the limiting assembly and the locking assembly can improve the stability of the supporting piece at the supporting position, the supporting piece is prevented from rotating, and the use reliability of a user is guaranteed.

A horizontal high-speed throwing device based on gear rack drive, characterized in that it includes a throwing main machine and a lifting and pitching mechanism. The throwing main machine includes a rolling angle driving mechanism with one end installed on an outer support and the other end connected to a coupling bracket; the lower ends of the outer support and the coupling bracket are both fixed to the front end of the base, the semi-open annular constraint track and the lifting elastic baffle of the throwing mechanism are fixed to the base, the base is installed on a trolley body with a double-axis bidirectional gear rack driving mechanism at the bottom through screws, the buffer is fixed to the trolley body, the roller group and the gear rack group are respectively fixed to the bottom of the trolley body, and jointly support and drive the base to move axially along the rail, the trolley body is constrained by two sets of upper limit guide rails installed on the machine base, and a buffer mechanism is installed at the end of the machine base; the lifting and pitching mechanism includes a gear rack lifting mechanism, one end of the pitch angle hinge mechanism is connected to the support frame through a double hinge, and the other end is connected to the lifting platform, and the rack locking mechanism is fixed to the support frame.

The invention discloses a mobile game support which comprises a main supporting frame, an auxiliary supporting frame and supporting rods, the main supporting frame is located below the auxiliary supporting frame, the two ends of the main supporting frame are connected with the two ends of the auxiliary supporting frame through the supporting rods respectively, supporting legs are arranged at the bottoms of the two ends of the main supporting frame, and supporting feet are arranged at the bottoms of the supporting legs. A rotary lock catch is arranged at the top end of the supporting leg, a convex clamping groove is fixed to the inner side of the lower end of the rotary lock catch, a supporting arm is arranged on the supporting leg, a writing board is arranged on the supporting arm, a heat dissipation structure is arranged on the auxiliary supporting frame adjusting base, and the heat dissipation structure comprises a battery bin, a fan and a transverse Picatini guide rail. The transverse Picatini guide rail is arranged at the bottom of the battery bin, barrel-shaped fairings are arranged at the two ends of the battery bin, the fan is arranged in the fairings, and the magnetic suction cup is arranged at the front end of the battery bin. The support can be used for placing a mobile phone, a tablet computer and books and can also be used for writing.

The invention relates to a strip steel online loop cooling device for a thin strip casting and rolling production line and a using method of the strip steel online loop cooling device. The cooling water tank is arranged below the strip steel on the production line, and cooling liquid for cooling the strip steel circularly flows in the cooling water tank; the double-layer loop roller structure is used for bending the strip steel at a set angle and then enabling the strip steel to enter the cooling liquid of the cooling water tank; the strip steel passes through the roller way structure and is used for conveying the head of the strip steel and assisting in threading; the strip steel passes through the rollers and the double-layer loop roller sets are arranged in a crossed mode in the running direction of the strip steel. And the control part is used for controlling the temperature of the cooling liquid in the cooling water tank and the working state of the double-layer loop roller structure. The cooling water tank, the double-layer loop roller structure and the strip steel passing roller way structure are integrally arranged, so that the automation level and the control precision of the cooling process are improved, the stability and the controllability of the cooling process are ensured, the energy consumption is effectively reduced, and powerful support is provided for improving the production efficiency and the product quality.

The utility model relates to the technical field of seats, in particular to a bidirectional waist-protecting seat, which comprises a flexible seat cushion, a seat frame, a bottom frame part and a bending angle, the upper side end face of the flexible seat cushion is in a hip-like shape, the seat frame is a rectangular pipe frame, the bottom frame part is in a bending type, and the bending angle of the bottom frame part is a round angle. The front side or the rear side of the bottom frame part and the backrest frame part can form a supporting space, a seat plate is arranged between the bottom side of the seat cushion and the seat frame, the end face of the upper side of the flexible seat cushion is arranged in a hip-like shape, the using comfort can be improved, the flexible seat cushion is a sponge seat cushion and can have good supporting performance and rebound resilience, the seat frame is a rectangular pipe frame, and therefore the using comfort can be improved. According to the seat frame, the supporting stability of the seat frame can be guaranteed, meanwhile, the weight of the seat can be reduced, the overall using comfort of the seat is improved, under the mutual cooperation of the bottom frame part and the backrest frame part, the sitting posture of a user can be standardized, a hunchback bending space is not reserved for the user, and the sitting posture of the user is kept good.

The present invention discloses a positioning and orientation method based on multi-aperture imaging, which uses at least three cameras to form a multi-aperture imaging system. There is no common imaging area between the cameras, which is equivalent to large-field-of-view, high-resolution joint imaging; establishes a corresponding set between two-dimensional and three-dimensional; based on pre-calibrated camera internal parameters and inter-camera external parameters, performs equivalent monocular pose estimation, solves the PnP problem to obtain the initial values ​​of the position and attitude of the multi-aperture imaging system; constructs an observation model based on the multi-aperture imaging relationship, optimizes the initial values ​​of the position and attitude of the multi-aperture imaging system, and obtains the high-precision position and attitude of the multi-aperture imaging system. The present invention is applied to the field of photogrammetry and computer vision technology, and utilizes multi-aperture imaging equivalent to ultra-large field-of-view ultra-high-resolution imaging, and optimizes the high-precision position and attitude by establishing an observation model based on the multi-aperture imaging relationship, breaking through hardware limitations and achieving extremely high-precision positioning and orientation.

The invention relates to the technical field of medical apparatuses and instruments, and particularly discloses a bone orthopedic external splint device which comprises a foot pad and a splint body. The leg sleeve is arranged above the foot pad, the shank of the child is fixed through the leg sleeve, and the foot pad is firmly worn on the foot of the child; the dynamic triggering assembly is arranged on the rear side of the foot pad, and the dynamic triggering assembly can detect whether the child is in a walking state or not; the dynamic telescopic assembly is convenient for correcting and improving functions and postures of ankle joints of a child when the child walks so as to recover or improve the stability and activity of the ankle joints, reduce or eliminate pain and discomfort related to the ankle joints and improve gaits and movement effects, and the foot pad is in an active state in a non-walking state, so that the foot pad is in a non-walking state. The use of the children in daily life is not influenced, so that the conflict emotion of the children is reduced, the safety of the device is improved, meanwhile, the second telescopic frame can move on the first telescopic frame, the growth and development of the children are facilitated, and the use comfort of the children is improved.

The present invention provides a hip, knee and ankle rehabilitation exoskeleton intelligent machine for stroke patients, comprising a waist brace worn on the patient's waist, a knee brace tied to the patient's knee, an ankle brace sleeved on the patient's ankle, an electromyographic sensor for collecting electromyographic signals at the patient's calf muscles, and an angle sensor for collecting the patient's knee bending angle. The waist brace is movably connected to the knee brace through a first connecting piece, and the knee brace is movably connected to the ankle brace through a second connecting piece. A first electrical stimulation module is provided on the inner side of the waist brace, and a second electrical stimulation module is provided on the inner side of the knee brace. The electromyographic sensor is electrically connected to the first electrical stimulation module and the second electrical stimulation module through a signal transmission line. The first electrical stimulation module and the second electrical stimulation module are provided with an electromyographic signal collection unit, an electromyographic signal optimization unit and an electromyographic signal classification unit. The present invention can reduce the probability of accidentally touching an electrical stimulation switch, and help patients stabilize their upper body and improve their posture when walking.