27 results about "Hand size" patented technology

This utility model relates to a hand rehabilitation training tool for hemiplegic patients, including a lower palm support plate and a lifting adjustment component. The lifting adjustment component includes a lifting tube connected to the lower palm support plate and a lifting rod slidably connected to the lifting tube. An upper palm support plate is connected to the lifting rod. The technical solution of this application has the following advantages: the lower palm support plate is connected to the lifting tube, the lifting rod is slidably connected to the lifting tube, and the upper palm support plate is slidably connected to the lifting rod, thereby facilitating the adjustment of the upper and lower palm support plates. This solves the problem that existing hand support devices, such as fixed brackets and rehabilitation training trays, are mostly fixed structures, which cannot adapt to the differences in hand size and finger length among different users, resulting in inaccurate support position and affecting the effectiveness of use.

The utility model relates to the related technical field of stroboscopes, in particular to a wireless synchronous stroboscope which comprises a synchronous stroboscope body, the bottom end of the synchronous stroboscope body is provided with a synchronous stroboscope holding rod, one end of the synchronous stroboscope body is provided with a charging dustproof assembly, and the other end of the synchronous stroboscope body is provided with a wireless communication module. Fixing assemblies are arranged on the two sides of the synchronous stroboscope holding rod. Through the arrangement of the charging dustproof assembly, the embedding of the dustproof cover and the charging hole, the tight fitting of the sealing rubber strip and the dual dustproof design of the blocking frame, dust can be more effectively prevented from entering the charging port, and through the connection of the elastic band, the dustproof cover can be completely taken down during charging, so that the interior of the charging hole can be checked and cleaned regularly, and the charging efficiency is improved. The fixing assembly adopts a mode that a bandage crosswise penetrates through a square-shaped buckle and is bonded through a bonding layer, the tightness can be adjusted according to the size of a palm and the holding comfort degree, and the device is effectively prevented from falling off in cooperation with an elastic rubber strip on a baffle.

An augmented reality (AR) calibration process for an eyewear device that customizes an AR user interface (UI) for the wearer. Physiological characteristics such as arm length and hand size are determined from images captured by the eyewear device for use in adjusting the UI controls before rendering the UI.

The invention provides a gesture recognition method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the hand key point detection of a collected hand-containing image, and obtaining a preset number of key point coordinates; calculating the center position of the palm according to a specific key point in the coordinate, and ensuring stable positioning when the shooting angle is changed and partial fingertips are lost; determining the hand scale based on the distance between reference key points in the coordinates, dynamically setting at least one group of gesture judgment threshold values according to the scale, and adapting to different hand sizes, shooting distances and angles; and combining a palm center, a hand scale and a dynamic threshold to judge a gesture type, and outputting a label. According to the method, the calculation complexity and memory occupation can be greatly reduced while the recognition precision of common gestures such as fist clenching, hand opening and thumb direction is guaranteed, and the method is suitable for computing power limited scenes such as a mobile terminal and embedded equipment and has good practicability and robustness.

The utility model provides a handlebar control device and an electric vehicle. The handlebar control device can adapt to users of different hand types, is simple in adjusting mode and high in stability. The handlebar control device comprises a handlebar body, a control component and a movable connecting component. Wherein a mounting part is arranged on the handlebar main body; the control part is used for controlling functional parts of the electric vehicle; the movable connecting part is used for connecting the handlebar body and the control part. According to the utility model, the riding safety is guaranteed, the operation comfort is improved, manufacturers do not need to develop products of multiple specifications according to hand shape differences, and the production cost is reduced. The stepless adjustment of the control part in the length direction of the handlebar is achieved through the cooperative installation of the movable connecting part and the installation part and the pre-tightening fixation of the first fastener, so that users with different hand shapes can naturally touch the control part with thumbs, and meanwhile, the stability after adjustment is ensured.

The utility model discloses a handheld electric grinding machine, and relates to the field of electric grinding machines. The grinding machine comprises the grinding machine body, the rotating groove is formed in the outer surface of the grinding machine body, the stabilizing mechanism is arranged in the rotating groove, vibration generated by a motor is effectively absorbed and slowed down through a damping rotating rod in the stabilizing mechanism by means of the damping characteristic of the damping rotating rod, transmission of vibration to the hand is greatly reduced, and the grinding machine body is more stable. Therefore, hand fatigue and aching pain of workers after long-time work are relieved. Meanwhile, the thumb sleeve is detachably connected with the damping rotating rod through the mounting head and can be adjusted according to the size of a hand, and the holding stability is ensured; and the silica gel layer provides additional holding friction force, so that stable connection between the hand and the grinding machine can be kept even in a wet or greasy environment. By means of the design, operation stability is improved, safety is enhanced, and potential safety hazards caused by hand discomfort or hand slipping are reduced.

The utility model discloses a pair of scissors capable of adjusting the distance between scissor handles, which comprises two scissor blades and scissor handles respectively connected to the rear ends of the two scissor blades, the two scissor handles are rotated to drive the two scissor blades to rotate to shear and separate, the rear ends of the two scissor blades are respectively provided with a first connecting piece, and the front ends of the two scissor handles are respectively provided with a second connecting piece. The two second connecting pieces are rotationally connected with the first connecting pieces on the corresponding sides respectively, the shear handles can rotate around the first connecting pieces through the second connecting pieces of the shear handles, and locking mechanisms capable of limiting rotation of the second connecting pieces are arranged between the second connecting pieces and the first connecting pieces. The distance between the two scissor handles of the pair of scissors is of an adjustable structure, so that a user can adjust the appropriate distance between the two scissor handles according to the hand size of the user, equivalently, the pair of scissors can be suitable for being grabbed and used by users with different hand sizes, and the pair of scissors is more comfortable to operate.

A pickleball paddle includes a paddle face having a lower face portion that narrows into a throat region connecting to a handle. At least one lateral groove is formed in the throat region, the groove having a generally U-shaped bottom profile configured to receive a user's index finger. The groove allows the user to assume a pistol-like grip by wrapping the index finger around an upper portion of the handle, improving comfort and control. In some embodiments, grooves are provided on both sides of the throat region for right- or left-handed use, or multiple grooves on one side to accommodate different hand sizes. The paddle enables a two-handed backhand grip in which the dominant hand holds a lower handle portion and the non-dominant hand engages the groove, producing a more powerful and controlled backhand shot while reducing finger obstruction and enhancing paddle-face awareness.

The invention provides a food nutritional ingredient analysis method and system based on a palm proportion scale, and relates to the technical field of nutrition analys.The method comprises the steps that a palm image of a user is collected to extract a plurality of hand size parameters, and a size reference set is constructed; then collecting an image containing food and a palm of a user, and identifying a current gesture state, a food contour and a dining scene in the image through a computer vision technology; according to the recognized gesture state, corresponding hand size parameters are dynamically matched from the size reference set to serve as a proportional scale; calculating the actual physical size of the food and further determining the actual weight of the food based on the proportional scale and the food contour; and finally, generating a personalized food nutritional ingredient analysis result in combination with the dining scene, the actual weight and the cooking additive parameters. According to the invention, the technical problem of low accuracy of food identification and nutrition analysis in the prior art is solved, and the accuracy of food actual weight and nutrition intake estimation is remarkably improved.

Disclosed in the present application are a folding handle for a luggage case, and a luggage case. The folding handle comprises a handle main body and two rotating handle bodies; a first inclined surface portion is formed at each of the two ends of the handle main body, and a second inclined surface portion is formed at an end portion of each rotating handle body, wherein the second inclined surface portions of the two rotating handle bodies are respectively fitted to the two first inclined surface portions, and the second inclined surface portions and the first inclined surface portions are in hinged connection via shaft assemblies; limiting mechanisms are provided in the handle main body or the rotating handle bodies, the limiting mechanisms being used for locking the relative positions of the second inclined surface portions and the first inclined surface portions. Compared with the prior art, the present application facilitates unfolding and folding and is also adaptable to different hand sizes, thereby satisfying use requirements better.

An augmented reality (AR) calibration process for an eyewear device that customizes an AR user interface (UI) for the wearer. Physiological characteristics such as arm length and hand size are determined from images captured by the eyewear device for use in adjusting the UI controls before rendering the UI.

A single-hand wear and doff (SHWT) glove can protect the hands and fingers from direct contact with undesirable objects, such as hot, dirty, or corrosive objects, while maintaining the dexterity of the fingers to effectively complete tasks. The SHWT glove provides different finger combinations (optionally including the thumb as one of the fingers), for use by people with different finger and hand sizes, can be worn and doffed with a single hand (for single-handed operation), and has improved mechanical properties and leverage. Human hand sizes vary from small to large, and the SHWT glove is suitable for small, medium, and large hands. The SHWT glove can be constructed from different materials, and the material thickness can be varied in different parts of the finger gloves. The materials selected and the thickness applied can vary the elasticity, stiffness, bendability, or stretchability of the SHWT glove.

The invention provides a control method and system of an extractor hood and the extractor hood. An array infrared sensor is arranged on the extractor hood. The method comprises the steps that if real-time gesture information is detected through an array infrared sensor, whether the real-time gesture information is stored in a preset gesture database or not is judged; if the real-time gesture information is stored in the gesture database, judging whether the real-time gesture information meets a preset small-size standard or not; the small-size standard is used for representing hand size characteristics of the child; if the real-time gesture information does not meet the preset small-size standard, determining a target control instruction corresponding to the real-time gesture information; and controlling the extractor hood to operate according to the target control instruction. In the mode, the real-time gesture information of the user is acquired through the array infrared sensor arranged on the range hood, and the size of the real-time gesture information is judged, so that the identity of a gesture sender can be distinguished, a child is prevented from touching the range hood by mistake, and the potential safety hazard is eliminated.

The system according to this embodiment aims to allow users to easily select baseball equipment that suits them. [Solution] The system according to the embodiment comprises a reception unit, a measurement unit, an analysis unit, a determination unit, and a provision unit. The reception unit receives user information. The measurement unit measures the hand size based on the information entered by the reception unit. The analysis unit analyzes the bat swing speed based on the information entered by the reception unit. The determination unit determines the length and weight of the bat, and the type, shape, and size of the glove based on the information obtained by the measurement unit and the analysis unit. The provision unit provides the information determined by the determination unit to the user.

This invention discloses a rhythmic, cyclical, flexible hand massage device and its control system. The massage device features a multi-zone airbag unit with protrusions containing small balls on the inner side of the airbags. These protrusions, combined with a micro-vibration motor, can precisely stimulate specific locations for targeted massage. Furthermore, the finger airbags in this invention have spiral airflow channels, and the heat exchange unit is a combined graphene heating film and water-cooling plate structure. This allows for both heating and cooling functions without compressing the fingers, making it a multi-purpose device. The control system employs fuzzy PID dual-closed-loop bottom-level control and rhythmic, cyclical top-level control, linking vibration, temperature adjustment, and air pressure to achieve precise zoned massage, enhancing comfort and safety. It precisely controls massage intensity and rhythm, and the combined massage effectively promotes the elimination of edema. It is adaptable to different hand sizes and easy to use.

According to the rotary cover folding type anti-black-hand manicure phototherapy lamp and the using method, the main machine through hole and the rotary cover which are provided with the baking lamps are arranged on the main machine, the rotary cover is opened and adjusted to a proper angle, and therefore the palm, the thumb and the other four fingers can be dried at the same time in a partitioned mode; and the angle of the rotary cover can be adjusted according to the length of the finger, so that ultraviolet light of the baking lamp intensively irradiates the fingernail area, the hand back and the skin of other parts of the finger are prevented from being exposed to the ultraviolet light, and the purpose of preventing sunburn of the hand skin is achieved. Meanwhile, due to the rotary folding structure, the overall size is small, and carrying is convenient; the through hole of the main machine and the baking lamp of the rotary cover are independently controlled through different inductive switches respectively, so that various use modes are met; the rotating angle is appropriate, and the device is more in line with ergonomics, adapts to different hand sizes, is portable and easy to operate, and can meet various application scenes.

The utility model relates to the technical field of labor protection gloves, in particular to an acid and alkali resistant labor protection glove which comprises an acid and alkali resistant labor protection glove body, the inner side of the acid and alkali resistant labor protection glove body is fixedly connected with a sponge block with the section shape the same as that of the acid and alkali resistant labor protection glove body, and the outer side of the acid and alkali resistant labor protection glove body is fixedly connected with a connecting belt. The acid and alkali resistant labor protection glove comprises an acid and alkali resistant labor protection glove body, a sponge block is arranged on the outer side of the acid and alkali resistant labor protection glove body, a connecting belt is arranged on the outer side of the sponge block, a hook and loop fastener surface is arranged on the outer side of the connecting belt, and hook and loop fastener flannelette is fixedly connected to the outer side of the acid and alkali resistant labor protection glove body. The hook-and-loop fastener surface is attached to the hook-and-loop fastener flannelette, so that the acid-and-alkali-resistant labor protection glove body can be limited through the connecting belt, and the problem that the acid-and-alkali-resistant labor protection glove cannot be suitable for hands of different people in different sizes and is prone to falling off from the hands is solved.

Grip support devices for use with a manually operated handheld pipette, e.g., a micropipette, to reduce strain on the user's hand during operation of the pipette are provided. The grip support devices include an adjustable strap for supporting the pipette on the user's hand, and which may be adjusted to accommodate various user hand sizes. In some embodiments, the strap may be removably coupled to the grip support device in various configurations to accommodate both a right-handed user and a left-handed user. In addition, the grip support device may include an extended portion to provide additional support to the thenar region of the user's hand, e.g., during gripping of the pipette.

A nunchaku training apparatus and method for enhanced martial arts instruction comprising a nunchaku assembly with two handles, each having predetermined contrasting colors to facilitate visual differentiation during training. Each handle is divided along its longitudinal axis into high, middle and low sections delineated by linear demarcation lines to guide proper hand placement. The apparatus includes a pair of wrist coverings with contrasting colors distinct from the handle colors and from each other, enabling identification of which hand grips which handle. The handles may be octagonal or cylindrical in cross-section and constructed from various materials including wood, metal, or foam. A tether coupling the handles may be cord, rope or chain with length optimized for the user's hand size. Training methods include instructing users to distinguish between handles based on color and section demarcation, with optional video analysis providing feedback on hand placement and technique. The system simplified nunchaku instruction, reduces student confusion and accelerates skill acquisition through clear visual guidance and enhanced comprehension.

This utility model relates to the field of flight simulator technology, specifically a flight simulator joystick, including a base, with a hollow rod hinged to the upper end of the base. An auxiliary mechanism is provided on the outer side of the hollow rod, including an anti-slip component disposed on the outer side of the hollow rod. The anti-slip component includes an airbag fixedly installed on the outer surface of the hollow rod. A support component is disposed on the outer side of the hollow rod, including a sliding ring slidably connected to the interior of the hollow rod. A support ring is movably sleeved on the outer side of the hollow rod. In this utility model, the height of the palm rest can be adjusted by sliding it up and down along a groove, adapting to different hand sizes of the operator. This makes it easier for those with smaller hands to grip, effectively supporting the palm heel and improving support, preventing reduced micro-operation precision due to insufficient support. Simultaneously, by adjusting the grip diameter of the joystick, it can be adapted to different hand sizes of the operator.

A system and method for generating product recommendations based on hand size are disclosed. An image of a human hand is acquired using an image capture device and processed to identify anatomical landmark locations using image analysis. Physical hand dimensions are determined based on distances between selected landmark locations and are normalized to generate a standardized hand size value representing the hand relative to a reference population. The standardized hand size value is assigned to a hand size category based on threshold-based categorization. One or more product recommendations associated with the assigned hand size category are generated. The disclosed techniques enable objective hand size determination from image data and support consistent comparison and matching across users and products.

A device for providing assistance in dexterous grasping operations. The device is a nine degree of freedom exoskeleton glove capable of reproducing grasping tasks present in ordinary daily activity. The device relies on series elastic actuators and a motion amplification controller for movement and support of finger joints of a user and is easily modifiable to fit individual users with different hand sizes. The user driven control scheme requires no additional hardware (e.g., camera or EMG sensors) but relies on user movements (even weak movements). Intelligent assistance prevents uncomfortable motion beyond the natural range of motion of the fingers while reacting very quickly to the user's physical input.

This invention relates to a smartphone authentication method based on structure-conducted acoustic signals, belonging to the fields of the Internet of Things and ubiquitous technology. Due to individual differences in hand size, thickness, and grip, user hand posture serves as a biometric for authentication. Furthermore, the structure-conducted acoustic signals transmitted within the phone are affected by the user's grip posture, resulting in variations. Therefore, this invention utilizes these effects of structure-conducted acoustic signal transmission within the phone, extracting these acoustic signal features to characterize the biometric features related to the user's hand posture, thereby achieving secure user authentication. The authentication method involved in this invention has the advantages of fast authentication, wide applicability, and no need for additional hardware.

The utility model relates to the technical field of umbrellas, in particular to a novel umbrella. The utility model provides a novel umbrella which comprises an umbrella cover, an umbrella middle rod and a handle which are sequentially connected, and the handle comprises at least one handle main section and at least one handle extension section. A threaded connector is arranged at one end, far away from the umbrella cover, of the umbrella middle rod, and the handle main section is detachably connected with the threaded connector; the end, away from the threaded connector, of the handle main section is detachably connected with the handle extension section. According to the novel umbrella, due to the fact that the length of the handle is adjustable, practicability is higher, a user can flexibly adjust the length of the handle according to the size of a hand, and therefore the comfort degree of the user holding the handle is enhanced.

This application relates to the field of gesture recognition technology, specifically a gesture recognition device. The gesture recognition device includes: a frame with a wearing channel for a wearer's arm to be fitted onto the frame; a detection mechanism including multiple detection elements spaced circumferentially along the frame, each detection element having a signal transceiver for capturing the wearer's gesture information; and a clamping mechanism including a first clamping component and a second clamping component disposed on the frame, at least one of which rotates relative to the frame to jointly clamp or release the wearer's wrist. Applying the technical solution of this application effectively solves the problem that gloves need to fit different hand sizes when worn, making it difficult to ensure a proper fit between the glove and the palm, resulting in unstable wearing.

The application discloses a gesture recognition mapping method and system based on robot vision, and the method comprises the following steps: collecting two-dimensional coordinates of each key point of a hand; performing angle calculation on each finger joint based on vector geometry to obtain continuous bending degree values of five fingers, and introducing a dynamic calibration mechanism to eliminate individual hand size differences; then, combining preset logic rules and a dynamic threshold adjustment mechanism, the bending degree vector is determined as a specific gesture semantic; finally, the bending degree value is converted into a target control parameter of a robot actuator through a calibrated mapping function, so that continuous and smooth mapping from a gesture to a mechanical hand action is realized. The application realizes real-time gesture recognition and accurate reproduction with low computing power and high robustness without relying on a depth camera, effectively overcomes the problems of high hardware cost, poor individual adaptability and stiff action mapping in the prior art, and can be widely applied to the fields of humanoid robots, virtual reality and other fields requiring fine gesture interaction.

The present application discloses a method for determining hand position information and a related device. The method includes: determining, according to a human skeleton detection model, position information of key part joint points of a human object in an image in a preset coordinate system; determining, according to position information of the head key part joint point and position information of the first part joint point, a height difference between the head key part joint point and the first part joint point; determining, according to the height difference, a hand size of the human object; determining position information of feature points according to the hand size, position information of the elbow joint point and position information of the wrist joint point, wherein the feature points are feature points of a preset shape surrounding a hand area; and determining the position information of the feature points as hand position information.