44 results about "Back curve" patented technology

The invention relates to a three-dimensional massaging machine and belongs to the structure technology filed of massaging machines. The three-dimensional massaging machine is characterized by comprising a kneading and knocking device mounted on a lifting frame, a front-tipping device and a lifting device, wherein the kneading and knocking device consists of kneading speed reduction mechanisms fixed on a left splint and a right splint, a knocking speed reduction mechanism, a left massage executing component and a right massage executing component and is respectively connected with a D-shaped rotating shaft, a front-tipping rotating shaft and the front-tipping device, thereby commonly achieving kneading, knocking, kneading plus knocking and shoulder grabbing actions. The invention has the advantages that firstly, the left massage component and the right massage component are simultaneously and mutually close or away on the horizontal direction, and an upper massage roller and a lower massage roller are close or away through the reacting force of a human shoulder to the upper massage roller under the situation of not increasing a drive source to achieve kneading, knocking, kneading plus knocking and grabbing functions; and secondly, the front-tipping device is used for automatically detecting a back curve of a human body, the kneading and knocking device moves forwards and backwards on the fore and after direction to adjust different positions and different massaging forces.

The invention provides an accurate wall thickness control modeling method for the inside profile of a blade body of a turbine air cooling blade. According to the method, when blade body inside profile curves are constructed, the thickness of the blade body is controlled through eight wall thickness control points on the top section and the bottom section; firstly, the blade body tail edge curve is rapidly and accurately positioned; then, the positions of the wall thickness control points are automatically adjusted, and the blade basin curve and the blade back curve are generated through interpolation; finally, the front edge curve is established. The number of the control points is increased to eight, so that the wall thickness control effect is improved; the tail edge curve is established before the blade basin curve and the blade back curve are established, so that changing of the arc position of the tail edge is avoided, and accurate and rapid positioning of the tail edge curve is achieved; by screening interpolation points, the changing rule of the outline of the tail edge curved surface of the inside profile of the blade body is consistent with that of the tail edge of the outside profile of the blade body, the curved surface is smooth, and the blade body wall thickness control effect can well meet wall thickness design requirements.

Contact lenses may be designed with locally thinned regions to increase oxygen transmissibility to the eye. The locally thinned regions are preferably positioned outside of the optic zone and in the thicker peripheral zone. For a contact lens formed from a specific material, creating local thinner regions, for example, dimples in the back curve surface of the lens, provides an effective and efficient means for increasing oxygen diffusion.

The invention discloses a three-dimension shoulder, back, waist and neck massager with a pressure detection device, which comprises a moving guide rail, a massager head, a vertical driving mechanism, and a connector. The moving guide rail is arranged on the frame of a backrest; the massager head comprises a treatment implementation member; the connector is arranged on the moving guide rail and is pivoted with a front plate and a rear plate; the massager head is fixed on the rear plate; the front plate is provided with a compensating device; a pressure detection device comprising a bolt, a compression spring and position controllers is arranged on the front plate and the rear plate; the bolt passes through the front plate, one end of the bolt is fixedly connected with the rear plate and the other end is provided with a nut; the part of the bolt, which is placed at the front of the front plate, is sleeved with the compression spring; the position controllers are respectively arranged on the front plate and the other end of the bolt and are connected with a controller; and the controller is connected with the compensating device. The three-dimension shoulder, back, waist and neck massager can control the advance and retreat of the massager head in real time automatically to fit the back curve of a user, thereby achieving effective massage.

The invention relates to a detecting method for human back contours, which provides a simple detection device with low cost and low requirement for device reliability. The back contours detecting method adopted in the invention is provided with a massager core with functions of back massage and walking. Human back data collecting: the walking motor of the massage core is started up; the massage core walks up and down on human back, in the process of walking, a detecting circuit collects data of each sampling point; a sampling value y in each sampling point is converted by an A / D transfer circuit in microprocessor and stored in the microprocessor to form a sampling data array y0, y1...ym; back contours fitting: after the sampling data y0,y1...ym is obtained, calculation is carried out by the microprocessor based on calculation software of mathematic models; the software is pre programmed and stored in the microprocessor; therefore the fitted human back contours can be drew and displayed through a displayer.

The invention provides a method for measuring the water content of graded broken stone and belongs to the field of graded broken stone materials and construction parameter testing. The method includes: using the mass proportion, accounting for the to-be-measured graded broken stone, of each broken sample as weight to calculate the weighted average of the water content of different drying broken samples, and using the calculation result as the water content of the to-be-measured graded broken stone. The method has the advantages that the defects that due to the fact that the graded broken stone is high in porosity, free of cohesiveness and poor in water retention capacity, water migrates, water content measuring by sampling a central point is not representative, coarse aggregate or fine aggregate is high in proportion during graded broken stone sampling, and the measured water content cannot truly reflect the water content of compaction test samples due to little sampling or sampling unevenness degree, and the compaction test result has a multi-camel-back curve are overcome, the accuracy and reliability of the measuring result are increased, and the method is simple and fast.

The invention relates to a bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on a reverse engineering technology, belonging to the technical field of agricultural machinery equipment. A surface is fit by five curve fitting equation, one end of that surface is cut by a section of arc as a cross section, and the other end of the surface is smoothly connected. Based on reverse engineering technology and bionics theory, point cloud was obtained from the back surface of Takydromusmongolicus and several back curves were extracted. Fiveparallel and equal width curves were selected to fit the curve trajectory into equation. Finally, a section of arc is taken as the cross-section and the five equations are smoothly connected to complete the construction of biomimetic surface structure. The bionic curved surface structure of the invention is used as a bionic curved surface plowshare soil-contacting part and has the advantages of strong insertion ability of the soil-contacting part into the soil, low working resistance and reduced damage degree of the plow body curved surface to the soil when the bionic curved surface plowsharesoil-contacting part is applied in practice.

The invention relates to an intelligent health chair, which comprises seat base, a back rest support, a head rest piece, a back rest piece, a waist rest piece, a lying adjustment device, a sensing device and a control processing device. An angle between the supporting surfaces of the back rest support, and the head rest piece, the back rest piece and the waist rest piece arranged on the back rest support and the supporting surface of a seat cushion arranged on the seat base can be adjusted between 90 degrees to 180 degrees through adjusting the lying adjustment device. The invention provides an ergonomic health chair with adaptability, so that a waist rest state can be adjusted automatically according to different body boundaries and back curve shapes, and a bad sitting position can be corrected. Monitoring, correcting, and data acquisition and analysis can be carried out through sitting positions. The chair can be adjusted to a 180-degree lying posture from a 90-degree sitting posture through the lying adjustment device, so that people can be helped to relieve fatigue, and the physical and psychological health is ensured.

The invention provides an ergonomic chair back of an intelligent healthy chair. The ergonomic chair back comprises a head supporting part, a back supporting part and a lumbar supporting part, which are arranged on a chair back support respectively, wherein the lumbar supporting part comprises a left lumbar supporting part and a right lumbar supporting part which are transversely arranged in parallel, a corresponding left lumbar support adjusting device and a corresponding right lumbar support adjusting device; the left lumbar supporting part and the right lumbar supporting part are fixed on the left lumbar support adjusting device and the right lumbar support adjusting device respectively; the left lumbar support adjusting device and the right lumbar support adjusting device are arranged on the chair back support; each of the head supporting part, the back supporting part, the left lumbar supporting part and the right lumbar supporting part is provided with an independent leaning curved surface provided for a user to lean; the left lumbar support adjusting device and the right lumbar support adjusting device are self-adaptive elastic devices. By adopting the ergonomic chair back, a lumbar support state can be automatically adjusted according to different body outlines and back curve shapes, and differentiated demands of different people on comfort and health are met. Meanwhile, the ergonomic chair back is used for correcting bad sitting postures.

The invention discloses a neck pillow; the neck pillow is integrally in the shape of m and made of hard material; the middle part of the neck pillow is a smooth curve face with symmetrical front and back parts; the longitudinal radians of front and back curve faces of the smooth curve face respectively simulate a physiological curvature of the cervical vertebra of a human body; a cross radian simulates the cross radian of the shape of a neck of the human body. According to the invention, the curve radian of the m shaped pillow is applied to simulate the physiological curvature of the cervical vertebra of the human body; by using mutual effect of the upwards hoisting force of the vertical curve face at the surface of a pillow and the gravity of a patient's head, the neck part of the human body is stressed by frontwards and upwards bidirectional tractions; after using for 15 minutes before sleeping and further repairing by an ordinary pillow in sleeping, the straightening and even inverse pathological state of the cervical vertebra can be corrected, and the normal physiological status of the front convex of the cervical vertebra is recovered, the neck pillow can return bulged cervical intervertebral disc, improve circulation and release cervical vertebra regression.

The invention discloses an acetabula pre / posterior column fracture fixing device and method; the fixing device comprises a bowed edge steel plate and a trapezoid steel plate combined together; the bowed edge steel plate is transversely arranged in a bar shape, and the back curves to match with an anatomical structure in the bowed edge; at least three extension fixing arms are arranged between the top center of the trapezoid steel plate and the bottom center of the bowed edge steel plate; the trapezoid steel plate is arranged below the bowed edge steel plate, and wholly bends to match with an inner anatomical structure above the os ischii and the upper half portion of the acetabula square area. The fixing device can stably reset and fix the acetabula fracture, thus improving fracture reset and inner fixing quality.

The invention relates to the technical field of medical auxiliary instruments, and aims to provide a wearable postoperative rehabilitation training device for a thoracic surgery patient, wherein the device can autonomously realize muscle group rehabilitation training. The device comprises a back plate matched with the back curve of the human body, the left side and the right side of the upper portion of the back plate are each provided with an arm plate, the arm plates and the back plate are hinged to each other, and torsional springs used for driving the arm plates to reset are further arranged at the hinged positions; first binding belts used for fixing the arm plates to the upper arms of a patient are arranged on the upper sides and the lower sides of the arm plates, and second bindingbelts used for fixing the back plate to the trunk of the patient are arranged on the left sides and the right sides of the middle portion and the lower portion of the back plate. The device is worn onthe body of a patient for use, assists the patient in exercising the chest and related muscle groups, is simple to operate and convenient to use, can assist the patient in quickly recovering the functions of the muscle groups, replaces a traditional manual assistance mode, and saves manpower resources.

The invention provides a body posture orthopedic belt, which belongs to the field of medical equipment and includes shoulder belts, back belts, waist belts and support bars. There are two shoulder straps, the two shoulder straps are installed on the straps respectively, the two shoulder straps are arranged at intervals along the width direction of the straps, and the ends of the two shoulder straps away from the straps are detachably connected. The waist belt is connected to the back belt, and the waist belt is used to be wound around the waist of the human body. The support bar is installed in the back strap, the length direction of the aluminum bar extends along the length direction of the back strap, and the end of the support bar stretches into the waist belt. During the use of the posture orthopedic belt, the user's back curve is corrected by mechanical tension, and the correction effect is good. It can correct users with large or small posture deformation, and has a wide range of applications.

The invention discloses an in-situ turn-back method for a monorail crane. The in-situ turn-back method comprises the steps that firstly, in a main roadway where the monorail crane operates in a branched mode, the ox-nose-like cross point with the roadway width not being lower than 3.8 m and the branched position included angle not being smaller than 40 degrees is selected as an in-situ turn-back site; then a special turn-back curve is machined and mounted; and finally, the special turn-back curve is utilized to conduct in-situ turning back in a branched roadway. Three persons implement operation through the overhauling time without a line special for crane turn-back, in-situ turning back of the monorail crane can be completed within 0.5 h, and influences on normal production of excavatingwork faces are completely avoided.

The invention relates to a massage method and device matched with a human body back curve, a control system and a massage chair. After the massage chair is started, a massage machine core is preset to be in a preset initial position and state; the massage machine core is made to move downwards, and a force measuring device of the massage machine core is used for obtaining the stress value corresponding to the pulse position point of each walking motor; the stress value is compared with a preset threshold value, a radial motor is adjusted to enable a massage arm of the massage machine core to push forwards or retreat, data of the massage machine core on the moving track from top to bottom and / or from bottom to top are recorded, a relative position table is obtained through arrangement, and the stretching amplitude of the massage arm corresponding to the curve of the back of the human body is adjusted in real time according to the movement of the massage machine core. The intelligent massage chair can more accurately detect and describe the body shape characteristics of the human body, assist massage to improve the massage precision and comfort, and realize intelligent massage of the massage chair.

The invention discloses a waist and back massager capable of fitting a waist and back curve. The massager comprises a main body bracket, handrails and a massage component; the massage component is composed of a fixed bearing frame, a plurality of groups of massage rotors, rotor frames, telescopic rods, springs, convex pins and straight needle bearings, the telescopic rods are hexagonal, the massage rotors are fixed on the rotor frames and connected to one ends of the telescopic rods, the telescopic rod is assembled in the bearing fixing frame, a protruding pin is arranged at the bottom of the telescopic rod, and a spring is assembled between the telescopic rod and the bearing fixing frame. When the massage rotors make contact with the waist and the back of the human body, each massage rotor can rotate independently, and due to extrusion of the waist and the back, the massage rotors move backwards along with the telescopic rods. The multiple groups of massage rotors are changed into a state of dynamically fitting the waist and back curve of a human body and rotate independently to simulate pushing and pressing of human hands on the waist and back, so that the effects of massaging and relaxing the waist and back are achieved. The problems that the waist and back curves of the human body are diversified due to gender, age, body shape and the like, and the massage rotor cannot be comprehensively attached to the waist and back are solved.

The invention discloses a 3D printing shaping cervical vertebra stretching pillow. The 3D printing shaping cervical vertebra stretching pillow comprises a pillow body, and a soft cushion positioned atthe front side of the pillow body and having a vacuum plastic sucking stretching function, wherein a supine lying part is arranged in the middle of the top end of the pillow body, side lying parts are arranged at the positions, close to two sides of the supine lying part, of the top end of the pillow body, a rear pillow part is arranged at the position, close to the rear side of the supine lyingpart, of the top end of the pillow body, a hollow grating is arranged inside the lower end of the pillow body, and the soft cushion is filled with pearl particles. For the 3D printing shaping cervicalvertebra stretching pillow, the correcting curvature of the stretching pillow can be individually and procedurally designed according to the original cervical vertebra curvature of a patient, so thatthe condition of excessive correcting can be effectively avoided. PLA or other rigid materials are used for printing forming, so that the pillow is hard in texture, thus the correcting effect is goodand stable, the soft cushion with the vacuum plastic sucking stretching function is used for fitting the neck, shoulder and back curves of the patient, so that the use of the patient is more comfortable, in addition, the hollow grating is filled with folium artemisiae argyi, so that the special effects of soothing the nerves and calming the mind are achieved, and then the patient can easily fallasleep.

The invention relates to a human back curve detection device. The back curve detection device is installed on the two sides of a massage bed main body, the back curve detection device comprises a sensing device, two sensing device mounting plates, an upper computer and sensing device mounting plate lifting mechanisms; the two sensing device mounting plates are arranged on the two sides of the massage bed main body respectively, the sensing device mounting plate lifting mechanisms are arranged on the two sides of the massage bed main body, and the multiple sensing device mounting plate liftingmechanisms can drive the sensing device mounting plates to move vertically; the sensing device comprises a transmitting terminal and a receiving terminal which are installed on the two sensing devicemounting plates respectively; the upper computer is connected with the sending device. According to the device, the human back curve is obtained approximately, the upper computer provides a movement basis for movement loci of massage heads according to the obtained human back profile curve, and it is guaranteed that the massage strengths on different parts of the human body are the same. In the massage process, manual intervention is not needed, the human back profile curve is detected automatically, and the massage head movement loci are generated.

The invention provides a humpback posture corrector, and relates to the technical field of articles for daily use. The humpback posture corrector comprises a wearing assembly used for being worn on the shoulders of a user, a reminding device used for reminding a user, and a microswitch assembly used for triggering the reminding device, wherein the wearing assembly is connected with the movable endof the microswitch assembly, and after the shoulders of a user move, the wearing assembly is driven to move, so that the movable end of the microswitch assembly moves along with the wearing assembly,and the reminding device is triggered. A touch switch is pulled through back bending, left-right stretching of the back and the like, so that the equipment vibrates to remind a user to adjust the posture, the posture correcting function is achieved, the user can wear the equipment comfortably, a reminding mechanism is triggered through back bending, left-right stretching of the back and the like,and sensitivity of the reminding mechanism is guaranteed.

The invention discloses a multifunctional duplex cushion for sitting posture correction. The multifunctional duplex cushion comprises a backrest 1 and a seat cushion 2, the backrest 1 is arched in the middle and comprises a backrest frame 3, a waist support 5 and two symmetrical elastic leaf-shaped back supports 4, the backrest 1 and the seat cushion 2 are in detachable connection, and the waist support 5 is in a backwardly-recessed arc shape and coated with an elastic material. When the backrest 1 is demounted, the waist support 5 can serve as a face-down sleeping pillow, a user can attach face to the elastic material of the waist support 5, and the arch shape of the backrest 1 allows hands of the user to penetrate. The integral design of the multifunctional duplex cushion accords with hip and back curves of a healthy sitting posture, and the user feel most comfortable in a standard sitting posture. Due to detachability of the duplex cushion, the backrest can be detached to serve as the face-down sleeping pillow while sitting posture and afternoon-nap comfort can be improved, and easiness and quickness in mounting and demounting and convenience in storage and transport are realized.

The invention provides a movable breastfeeding bolster which comprises a bolster body and a movable headrest. The bolster body comprises a headrest installing portion, a backrest portion and a hip supporting portion, and the movable headrest is installed at the headrest installing portion and can slide relative to the headrest installing portion in the first direction. The length exposed out of the movable headrest, of the backrest portion, is changed along with the slide of the movable headrest in the first direction. The movable headrest, the backrest portion and the hip supporting portion are respectively provided with curved surfaces matched with a head-neck portion curve, a back curve and a hip curve of the infant. The movable breastfeeding bolster is provided with the headrest movable in position and direction, the positions and the lengths of the supporting parts corresponding to all parts of the infant body can be adaptively adjusted according to the body length of the infant, accordingly good matching adaptability to the body curve of the infant is always kept, and the stability and firmness of the body are ensured during infant breastfeeding.

The invention provides a human body back curve detection method and device, an electric control system and a massage chair. The method comprises the following steps: determining the positions of shoulders of a user by adjusting a massage machine core, and dividing the back of a human body into areas according to the positions of the shoulders, so as to distribute one or more collection points to each divided area; moving the massage machine core to each collection point to obtain a force value corresponding to the collection point; comparing the force value with a preset massage force reference value corresponding to the collection point, and adjusting an angle value of the massage machine core corresponding to the collection point; and according to the moving pulse number of the massage machine core corresponding to each acquisition point and a coordinate point formed by the angle value, fitting a reference curve for adjusting the massage manipulation and force of the massage machine core by adopting a least square method. The method is accurate in detection and low in cost, the reference curve which can be directly applied to massage strength and manipulation regulation and control can be obtained, and improvement of massage comfort and safety is facilitated.

The invention discloses a method and system for acquiring a human body back curve based on a camera. The method comprises the steps that step one: a human body section database is acquired; step two:a human back image of a user is input; step three: the input image is detected, the back outline and / or height data of the human body are obtained after calculation. The acquiring method can conveniently carry out non-contact type human body back curve measurement and improve the accuracy and convenience of the measurement.

The invention provides a rubber lifting and gathering bra, which is used for solving the problems of deformation and ptosis of the female breasts and high back fat, and can decorate the back curve ofthe breasts, lift the breasts, improve the plumpness and flatten the back. The bra comprises a back part, a left front part, a right front part, a left underarm relieving part, a right underarm relieving part, a left shoulder belt, a right shoulder belt, a left pressurizing part, a right pressurizing part, a hook ring part, a hook buckle and a supporting belt, wherein the back part, the left pressurizing part, the right pressurizing part, the left front part and the right front part are all of three-layer structures; and each three-layer structure comprises a skin attaching layer, a rubber layer and a fabric layer which are sequentially stacked, and the skin attaching layer, the rubber layer and the fabric layer are arranged in an aligned and attached manner. According to the rubber lifting and gathering bra, the parts are reasonable in design, pressure segmentation is realized, and single-layer and multi-layer alternating structures are adopted, so that the shaping effect is enjoyed while comfortable wearing is achieved; and the back and the underarm free fat are concentrated in the bra to form an attractive breast curve.

A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.

The present invention provides a protective gear for the sacral area, comprising: an upper side belt 1; a lower side belt 2; a pair of back support strips 3; a part 4 of the stitching area of ​​double stitches; elastic foam 5; a fixed adhesive tape 6 , the upper and lower side straps, the back support strip, and the elastic foam are partly connected with the double stitching seam area to prevent them from being separated from each other due to excessive force, and the upper and lower side straps are used to fasten the adhesive tape on the The stitching position of the lower belt keeps the sacrum area protector close to the user's back and sacrum area on the user's abdomen. The arc of the back support bar is roughly consistent with the user's back bending, and the lower belt acts as a rigid support. And make the back support bar fit the user's back and sacrum area, prevent the back support bar from arching when the user squats back, and the elastic foam fits the user's buttocks and sacrum area through the connection with the lower side belt , to provide cushioning when the user squats back on the ground, avoiding or reducing damage to the sacrum area.

The invention discloses a bionic bone-chopping knife and belongs to the technical field of metal cutting appliances. A knife handle is fixedly connected at the upper end of one side of the knife body, and a blade is fixedly connected at the lower end of the knife body. The blade is provided with cutter teeth of characteristics of badger teeth, length H2 of a single cutter tooth is 2.6-7.5mm, width d of a large end of the single cutter tooth is 2-3mm, the ratio of the length H2 of the single cutter tooth and the width d of the single cutter tooth is 1.3:1-2.5:1, length L1 of the blade and the knife body are both 160-170 mm, length L2 of the knife handle is 140-150mm, width H1 of the knife body is 70-80mm, and thickness b of the knife body is 2-3mm. The single cutter tooth comprises a front curve face and a back curve face, and front faces of the cutter teeth and back faces of the cutter teeth are arranged in a stagger mode. The cutter teeth curve is provided with an expansion angle theta of 70 DEG to 0 DEG, and the expansion angle theta gradually decreases from the start point k of the cutter teeth to the end point M of the cutter teeth. Compared with an ordinary stainless steel knife, the bionic bone-chopping knife is longe in service life, labor-saving and highly-efficient.

The invention discloses a mode recognition integrated service system based on a heterogeneous software interface. The system comprises a back bending measurement module and a heterogeneous software interface recognition module, and the back bending measurement module comprises a seating detection module, an infrared scanning module, a contour fitting module, a body part locking module, a skeleton scanning module and a result uploading module; and the infrared scanning module is electrically connected with the contour fitting module, the contour fitting module is electrically connected with the body part locking module, and the heterogeneous software interface recognition module comprises a timing module, a back bending analysis module, a curve drawing module, a fatigue degree calculation module and a stretching time calculation module. The bone scanning module is electrically connected with the back bending analysis module, the back bending analysis module is electrically connected with the fatigue degree calculation module, and the stretching frequency calculation module is electrically connected with the fatigue degree calculation module. The system has the advantage of being high in practicability.