139 results about "Third finger" patented technology

The disclosure presents a humanoid robot with an upper region (head, torso, arms with forearm assemblies, end effectors), lower region (legs), and connecting central region. Each end effector features index, middle, ring, little finger, and thumb assemblies attached to a housing of said end effector. The housing includes interior wall extents creating spaces for tendon routing, where the first distance between first and second wall extents is less than 45% of the second distance between third and fourth wall extents. Tendons controlling finger movements pass between these wall extents. The robot incorporates a wrist assembly connecting the housing of the end effector to the forearm, actuators housed in the forearm that control the tendons, and a carpal tunnel-like structure that guides tendons from forearm to base of the housing, enabling precise hand movements without requiring actuators in the hand itself.

The invention discloses a five-finger bionic dexterous hand with distributed touch perception and a control method. The five-finger bionic dexterous hand comprises a palm part; fingers of the thumb unit, the index finger unit, the middle finger unit, the ring finger unit and the little finger unit respectively comprise a three-stage series flexion and extension mechanism which is sequentially composed of a third knuckle, a second knuckle and a first knuckle from a metacarpophalangeal joint, and each three-stage series flexion and extension mechanism has three flexion and extension freedom degrees and one deflection freedom degree; the tendon rope driving units are arranged in the palm part; the palm center camera is integrated on the front face of the palm part and used for collecting visual information of an operation area; the 15 air pressure type touch sensor modules are installed on the third knuckles, the second knuckles and the first knuckles of all the finger units in a distributed mode, and each air pressure type touch sensor module is integrated with a pressure and temperature double sensing unit and used for sensing contact pressure and environment temperature; the control module is integrated on the back face of the palm part and is in signal connection with the palm center camera, the air pressure type touch sensor modules and the tendon rope driving unit.

The invention belongs to the technical field of robots, and particularly discloses a humanoid manipulator and a robot, the humanoid manipulator comprises a palm base body and five fingers connected with the palm base body, and the five fingers sequentially comprise a little finger, a ring finger, a middle finger, an index finger and a thumb; wherein the little finger, the ring finger, the middle finger and the index finger are the same in structure, each five-connecting-rod structure is formed by three knuckles and two connecting rods, and each five-connecting-rod structure is driven by a corresponding first driving mechanism and used for enabling the fingers to conduct bending and stretching actions; and the thumb can realize three actions through the second driving mechanism, the rotary driving mechanism and the third driving mechanism, namely bending and stretching actions as well as up-and-down rotating actions and left-and-right swinging actions relative to the palm base body. By cooperatively controlling the seven driving mechanisms, the five fingers can achieve various purposes of fist clenching, palm stretching or grabbing of different objects and the like, and meanwhile the humanoid manipulator has the advantages of being multiple in freedom degree, small, exquisite, flexible, similar to a human hand in size, easy to control and the like.

The utility model discloses a kind of ampoule breaking gloves. The device of the utility model includes: vice finger sleeve is arranged on glove main body, vice finger sleeve includes three finger sleeves, respectively corresponding little thumb, ring finger and middle finger, index finger sleeve and thumb finger sleeve are arranged on glove main body;Thumb finger sleeve is wrapped with thumb gauze layer;The side of the thumb gauze layer towards index finger sleeve is opened with arc slot, and the arc slot is placed at thumb gauze layer finger palm portion;Grinding wheel piece is annular arc structure, the curvature of grinding wheel piece inside is adapted to the natural curvature of thumb finger palm, the inside of grinding wheel piece is embedded in arc slot, and grinding wheel piece two ends are provided with connecting belt, two connecting belts are tied on thumb gauze layer knot or buckle connection, and the outside of grinding wheel piece is exposed. The utility model can complete ampoule breaking by single hand operation, protect both hands while simplifying operation mode, improve efficiency.

A finger mouse belongs to the technical field of computer indicating devices and comprises a mouse body and a forefinger placing portion, the mouse body is connected with the forefinger placing portion through a hose, a left mouse button is arranged on the forefinger placing portion, and an optical sensor is arranged at the bottom of the forefinger placing portion. A thumb placing part, an index finger bearing part, a roller key, a middle finger placing part, a ring finger placing part and a little finger placing part are arranged on the mouse main body according to finger shapes, a sensor switch key, a mouse right key, a mouse left key and an optical sensor are arranged below the middle finger placing part and the ring finger placing part, and the optical sensor, the roller key, the sensor switch key and the mouse right key are connected with a main control chip; and the main control chip is connected with the signal output part and the power supply. The mouse is designed according to the shape of a finger, the index finger placing part of the mouse moving control part adopts the concave curved surface design, an index finger is supported and placed, comfort is provided for the index finger after the index finger is used for a long time, and a mouse concave wrapping part is arranged on the index finger placing part.

This invention provides a multi-degree-of-freedom thumb mechanism with a damping pressure plate, comprising: a thumb body, the thumb body including a first finger segment, a second finger segment, and a third finger segment connected in sequence; a first driving part, the first driving part driving the first finger segment to bend and extend; a second driving part, the second driving part driving the second finger segment to bend and extend; a third driving part, the third driving part driving the third finger segment to rotate, thereby causing the first finger segment and the second finger segment to rotate; a base, the base integrating the first driving part, the second driving part, and the third driving part at the end of the third finger segment; and a damping pressure plate, the damping pressure plate being installed on the third driving part to counteract the looseness caused by backlash in the third driving part. The thumb mechanism of this invention has multiple degrees of freedom; by adding a damping pressure plate to the third driving part, backlash is counteracted, thereby ensuring gripping and operational accuracy.

The utility model discloses a multifunctional restraining glove which comprises a glove body, a restraining belt, a grip ball and a tightening device, the glove body is integrally connected with finger separating sleeves of four fingers, a hole is formed in the position, corresponding to the ring finger, of the glove body, the end of each finger separating sleeve is open, and a groove is formed in the position, corresponding to the hand back, of the glove body. A grip ball is sewn and connected to the position, corresponding to the palm center, of the glove body, and an elastic rope is sewn between the side, facing the grip ball, of each finger separating sleeve and the grip ball. A finger ring is fixedly arranged at the end of each finger separating sleeve in a sleeved mode, a guide pipe is fixed to the bottom of the grip ball, four pulling ropes with different lengths penetrate through the guide pipe, one end of each pulling rope is fixed to one finger ring, the other ends of the four pulling ropes are movably fixed to a tightening device, and the tightening device is fixed to a binding belt. The glove has the advantages that the elastic rope of the glove body limits the moving space from fingers to the grip ball, so that the fingers are prevented from moving randomly while moving and exercising of the fingers are facilitated, and an infusion tube is prevented from being struggled off.

The utility model relates to the technical field of medical rehabilitation instruments, and provides a pneumatic size-adjustable flexible rehabilitation glove which comprises a rehabilitation glove body, a thumb driver, an index finger driver, a middle finger driver, a ring finger driver and a little finger driver, each of the thumb driver, the index finger driver, the middle finger driver, the ring finger driver and the little finger driver comprises a metacarpal joint driving structure, a near finger and far finger joint driving structure and a sliding adaptive block; the metacarpal joint driving structure is arranged on the rehabilitation glove body; the metacarpal joint driving structure is connected with the near finger and far finger joint driving structure through the sliding adapting block. The near finger and far finger joint driving structure and the metacarpal joint driving structure are of a cavity structure. The length between the metacarpal joint driving structure and the near finger and far finger joint driving structure can be adjusted, so that the position of each section of driving structure corresponds to each finger joint, and the efficiency of hand rehabilitation exercise is improved.

The application provides an underactuated bionic dexterous hand, a system and a control method thereof. The underactuated bionic dexterous hand comprises a palm, five fingers, a control plate and a steering engine installed on the back of the palm through a threaded hole. The thumb comprises a joint, a tendon rope for driving the bending of the finger, a metacarpal bone, a proximal phalanx and a distal phalanx connected through a cylindrical pin in sequence. The index finger, the middle finger, the ring finger and the little finger have the same structure and each comprises a joint, a tendon rope for driving the bending of the finger, a distal phalanx, a middle phalanx and a proximal phalanx connected through a cylindrical pin in sequence. A finger root stroke limiter is arranged at the metacarpophalangeal joint of the thumb and the palm, and the metacarpophalangeal joint of the index finger, the middle finger, the ring finger and the little finger and the palm, the middle phalanx and the distal phalanx are each provided with a finger root stroke limiter. The application has high human simulation degree, is light and flexible, and solves the technical problems of the overlarge size, the overly complex structure, the rigid motion and the low human simulation degree of the dexterous hand.

The present disclosures relates to a glove and device to be used with the glove for vaginal touch measure for pelvic measurement, the glove having a palm portion and a plurality of finger portions extending from the palm portion, the device comprising: a first magnet for placing on a first finger of a user's hand; a first magnetic sensor for sensing magnetic field, for placing on a second finger of a user's hand; a second magnetic sensor for sensing magnetic field for placing on a third finger of a user's hand; and a data processing device; wherein the data processing device is arranged to: acquire, from the first magnetic sensor, a signal corresponding to the sensed magnetic field by the first magnetic sensor; acquire, from the second magnetic sensor, a signal corresponding to the sensed magnetic field by the second magnetic sensor; obtain, from the acquired signals, a distance between the first magnet and the first magnetic sensor, and a distance between the first magnet and the second magnetic sensor.

The utility model relates to a needle selection roller and a glove knitting machine. The needle selection roller comprises a roller body and a needle selection pin area arranged on the roller body. The needle selection pin area comprises a first little finger area, a ring finger area, a middle finger area, an index finger area, a three-finger-palm area, a second little finger area, a four-finger-palm area, a thumb area, a five-finger-palm area and a rib top area; the first little finger region, the ring finger region, the middle finger region, the index finger region, the four-finger region, the thumb region, the five-finger region and the rib top region are matched to weave the flat fork glove; the ring finger area, the middle finger area, the index finger area, the three-finger palm area, the second little finger area, the four-finger palm area, the thumb area and the five-finger palm and rib top area are matched to weave the low-fork glove. According to the needle selection roller in the glove machine, needle selection areas for knitting low-fork gloves and flat-fork gloves are sequentially fused, so that switching between the low-fork gloves and common gloves is realized.

This application provides a robotic hand and a robot, relating to the field of robotics technology, to solve the problem of limited grip width in robotic hands. The robotic hand includes a first, second, and third finger and a mounting base; the first finger has a first root phalanx, the second finger has a second root phalanx, and the third finger has a third root phalanx; the second and third root phalanxes are arranged side-by-side and fixedly connected to the mounting base; the first finger can flip and switch between a first and a second extreme position; in the first extreme position, the first, second, and third root phalanxes are arranged side-by-side; in the second extreme position, the first root phalanx is at least partially outside the area directly opposite the second and third root phalanxes, and the first finger is configured such that its fingertip contact surface can contact a local area of ​​the fingertip contact surface of the second finger that is biased towards the fingertip contact surface of the third finger. This can increase the grip width of the robotic hand.

The utility model relates to a finger exerciser which comprises an elastic bag body, the elastic bag body is in an ellipsoid shape, one end of the elastic bag body is large, the other end of the elastic bag body is small so as to adapt to deformation when a palm makes a fist, and five concave areas are arranged on the elastic bag body and correspond to the thumb, the index finger, the middle finger, the ring finger and the little finger in position respectively. Binding belts are fixedly connected to the positions, corresponding to the concave areas, of the elastic bag body, and finger sleeve areas used for limiting fingers are formed between the binding belts and the corresponding concave areas. According to the utility model, fingers are respectively inserted into the finger sleeve areas, the elastic bag body is held and pressed forcibly, the elastic bag body provides elastic force, the action of grabbing an object can be effectively simulated, when the fingers are straightened, the elastic bag body is pulled, the elastic bag body provides elastic impedance, and the action of opening a palm can be effectively simulated; therefore, the finger bending and stretching actions can be fully simulated, the real life scene can be well simulated, the exercise effect is improved, meanwhile, the heating and vibration relaxing functions are achieved, and the functions are more complete.

The invention relates to the technical field of robots, in particular to a bionic manipulator. The bionic manipulator comprises a palm module, a finger module and a driving control module. The palm module is composed of a palm skeleton made of a high-strength photosensitive resin material, the surface of the palm module is elaborately provided with a micro-bulge structure, and the interior of the palm module is ingeniously provided with a bionic skin pressure sensor; the finger module is composed of a plurality of finger units connected with the palm module. The thumb module and the index finger module respectively have three degrees of freedom, and the middle finger module, the ring finger module and the little finger module respectively have two degrees of freedom, totally 12 degrees of freedom. The flexible fingerstalls wrap the phalanx connecting rods and the joint connecting pieces and are made of silica gel materials, and texture structures are arranged on the surfaces of the flexible fingerstalls. And the driving device adopts a steering engine driving system and comprises a plurality of micro steering engines. And each micro steering engine adopts a model with a high-precision position feedback function. The palm module and the finger module are connected through a standardized detachable connection interface.

[Solution] A glove 2 can be worn on a hand, and comprises: a glove body 10; a knuckle guard member 20 provided on the glove body 10; a connection structure 30 that connects the knuckle guard member 20 to the glove body 10; and a fastener member 40 provided on the glove body 10. The connection structure 30 is a seam and connects the knuckle guard member 20 to the glove body 10. The connection structure 30 includes: a second finger piece connection part 32 provided on a dorsum-side second finger piece 102; a third finger piece connection part 33 provided on a dorsum-side third finger piece 103; a fourth finger piece connection part 34 provided on a dorsum-side fourth finger piece 104; a fifth finger piece connection part 35 provided on a dorsum-side fifth finger piece 105; and side connection parts 38 each provided on the outer side of each of the second finger piece connection part 32 and the fifth finger piece connection part 35.

The invention discloses a manipulator device capable of realizing various piano teaching actions. The manipulator device comprises a three-finger exoskeleton assembly, a little finger exoskeleton assembly, a metamorphic exoskeleton palm assembly, a thumb exoskeleton assembly, a wrist exoskeleton assembly and a plurality of motors, the three-finger exoskeleton assembly comprises a palm upper plate surface, an index finger exoskeleton unit, a middle finger exoskeleton unit and a ring finger exoskeleton unit; each exoskeleton unit is fixed on the upper plate surface of the palm; the metamorphic exoskeleton palm assembly is located below the palm upper plate face and is formed by oppositely hinging a semicircular left metamorphic unit and a semicircular right metamorphic unit. The wrist exoskeleton assembly is fixedly connected with the upper palm plate surface; the bottom of the left metamorphic unit is rotationally connected with the thumb exoskeleton assembly; the little finger exoskeleton assembly is fixed with the right metamorphic unit; a transmission wheel of each motor is connected with three transmission wheels of the index finger exoskeleton unit, the middle finger exoskeleton unit, the ring finger exoskeleton unit, the thumb exoskeleton assembly and the metamorphic exoskeleton palm assembly through transmission lines.

Provided is a hand emulator and an acoustic testing system. The hand emulator includes: a main support configured to support a device under test, the main support includes a palm, a thumb, an index finger, a middle finger, a ring finger and a little finger that are movably arranged at an end of the palm; a stopper including a plurality of limit pillars, at least some of the plurality of limit pillars are arranged on the palm, several limit pillars of the plurality of limit pillars enclose to form an accommodating space, and the device under test is limited within the accommodating space. The hand emulator can measure the frequency response of the speaker and / or the microphone of the device under test, emulate acoustic characteristics similar to the user's hand, and accurately and repetitively position the device under test, which improves existing measurement standards and creates new testing methods.

The utility model provides a swimming finger tip web, and relates to the technical field of sports auxiliary equipment, the swimming finger tip web is mainly composed of a finger tip web body, the finger tip web body is used for being sleeved on an index finger, a middle finger, a ring finger and a little finger at the same time, the finger tip web body is of a hollow cylindrical structure with two open ends, comprising a first opening end and a second opening end, the first opening end is a finger stretching-in end, the second opening end is a finger stretching-out end, and the size of the first opening end is larger than that of the second opening end. The water flow of the controllable area of the four fingers is gathered, and the pressure sense of the water flow can be transmitted to the finger faces due to the fact that the material is thin and soft, so that an athlete can clearly feel the pressure sense of the whole faces generated by gathering.

The utility model discloses an adjustable flexor tendon injury orthosis which comprises an orthosis forearm cylinder, a knob shoelace buckle, a thumb sleeve, an index finger sleeve, a middle finger sleeve, a ring finger sleeve and a little finger sleeve, and the thumb sleeve, the index finger sleeve, the middle finger sleeve, the ring finger sleeve and the little finger sleeve are connected with clamping grooves of the knob shoelace buckle through ropes respectively. The knob shoelace buckle is additionally arranged on the front arm cylinder of the orthosis to adjust the length of the rope, so that the use requirements of flexor tendon injury in different recovery periods can be met, and the service life of the orthosis is prolonged as much as possible; when the flexor tendon is damaged, the orthosis enables the flexor tendon to slide and promote joint movement through active stretching and passive buckling processes, and tendon adhesion and joint stiffness caused by long-term braking can be reduced to the maximum extent; along with the progress of rehabilitation treatment, the passive buckling strength can be adjusted by turning the shoelace buckle to increase or decrease the length of the rope.

The utility model relates to a humanoid robot hand structure which comprises five fingers, a finger base, a wrist and a finger diverging device. Each finger joint (totally 14 joints) can be controlled by the finger joint bending device of the joint to bend or unbend towards the palm, and the thumb can be controlled by the finger base bending device to bend or unbend towards the palm. The wrist can be controlled by the wrist bending device to bend or unbend towards the palm surface, the thumb, the index finger, the ring finger and the little finger (totally four fingers) can be controlled by respective finger diverging devices 7 to complete finger diverging or folding actions, and the middle finger is fixed with the finger base. The movement freedom degree of the hand is 19, the space of the hand is limited, and in order to achieve finger forking or folding control, a finger forking driving element is installed in the small arm. The finger is flexible, the structure is compact, the number of components of the same structure is large, and production and manufacturing are facilitated.

Provide a table tennis racket. 【Solution means】A triangular block 2 is provided at one neck portion (the joint portion between the handle and the racket face) 3 of the table tennis racket 1, and the triangular block is fixed to the table tennis racket. The two edge portions facing the outside of the triangular block are curved. The triangular block is composed of a wooden block. It has the following advantages compared with the prior art. In the case of a shakehand grip, hook the upper edge of the triangular block with the middle finger, hold down the lower edge with the ring finger, and extend the index finger to the opposite racket face for holding. This table tennis racket is cleverly designed. By adding a small triangular block, it assists in holding the racket with the fingers, making the fingers less slippery and the grip more stable, improving the operation feeling during hitting the ball, and making the force transmission easier. Therefore, it has extremely high practicality and market development potential.

The utility model belongs to the technical field of nursing plates, and particularly relates to an internal medicine nursing plate which comprises a nursing plate body, a plurality of first reinforcing ribs are fixedly connected to the outer side of the nursing plate body, first thumb limiting clamping grooves are formed in the first reinforcing ribs located on the side portion of the nursing plate body, and second thumb limiting clamping grooves are formed in the first thumb limiting clamping grooves. The side part of the nursing plate body is fixedly connected with a second reinforcing rib, and the second reinforcing rib is provided with a second thumb limiting clamping groove; second reinforcing ribs are fixedly connected to the side portion of the nursing plate body, the strength of the nursing plate body is enhanced through the first reinforcing ribs and the second reinforcing ribs together, when the nursing plate body is used, the nursing plate body can be held at the side position, and the fingers of a medical worker can be located at the limiting position in a first thumb limiting clamping groove. When the nursing plate is used, the middle finger can enter the second thumb limiting clamping groove along the first thumb limiting clamping groove, the ring finger and the little finger can be placed on the friction pad in a concentrated mode, stability and reliability are achieved when the nursing plate is held on the nursing plate body for use, and the using effect of the nursing plate is improved.

The multi-joint cooperative intelligent dexterous hand comprises a palm shell, and the palm shell is movably connected with a thumb, an index finger, a middle finger, a ring finger and a little finger; the palm shell is provided with a thumb metacarpal bone driving mechanism which is used for enabling the thumb to rotate around the side edge of the palm shell; the thumb is connected with a thumb cooperative driving mechanism which is used for bending the thumb; the index finger, the middle finger, the ring finger and the little finger are all connected with finger cooperation driving mechanisms which are used for enabling the index finger, the middle finger, the ring finger or the little finger to bend. The dexterous hand has six degrees of freedom, the thumb has two degrees of freedom and is used for bending and side swaying, each of the other four fingers has one degree of freedom and is used for finger bending, and through a multi-joint coupling structure, all joint actions are well coordinated, and human hand actions are finely simulated.

To provide a baseball glove which can be manufactured by a simple process in a short time, and which has the effect of adjusting health balance by immediately relieving lower back pain, various stiffness, pain in the legs and soles, etc., and also improves athletic ability by increasing the speed of swinging a bat and reducing fatigue. [Solution] A baseball glove (1) is configured such that when worn by a user, five types of natural mineral powders - germanium, terahertz, tourmaline, titanium, and black silica - are mixed into the inner palm surface of the glove in the areas that come into contact with the middle finger (7), ring finger (8), little finger (9), and wrist (2), and the natural mineral powders mixed into the inner palm surface of the glove in the areas that come into contact with the middle finger, ring finger, little finger, and wrist are irradiated with electrons, causing a reduction reaction in the natural mineral powders.

A glove including a body having a wrist end, a palm side, and a back side joined to the palm side at a side edge, a thumb finger part, an index finger part, a middle finger part, a ring finger part, a pinky finger part, wherein the body encloses a hand and fingers. A webbing portion disposed between each finger part. A spacer connected to each webbing portion, each spacer separates the finger parts a fixed distance apart to restrict lateral movement of each finger, the spacers position fingers of the user such that an angle of a thumb and a pinky finger is 90-135 degrees.

The utility model provides a snare, and relates to the technical field of medical instruments, the snare comprises a supporting rod, the outer surface of the supporting rod is slidably connected with an operation bracelet, the operation bracelet allows the middle finger and the ring finger of an operator to penetrate through, the operation bracelet is in threaded connection with a fixing bolt, and one end of the fixing bolt penetrates through the operation bracelet and is in contact with the supporting rod; a plurality of shifting pieces are fixedly connected to the outer surface of the fixing bolt and used for being shifted by the index finger of an operator. Through the arrangement of the operating bracelet, the fixing bolt and the shifting piece, the operating bracelet is used for operation of the middle finger and the ring finger of an operator, the shifting piece is shifted by the index finger to achieve unlocking and locking, accidental movement of the operating bracelet is effectively limited, the stability of the position of the ferrule is ensured, and the accuracy and safety of operation are improved; according to the design, an operator is allowed to use the middle finger and the ring finger to operate the operation bracelet, meanwhile, the index finger is used for controlling locking and unlocking, and the possibility of single-hand operation is achieved.

A hand covering with a mitten shell, a thumb portion extending laterally from the mitten shell, and abbreviated index, middle, ring, and pinkie finger fingertip segments configured to receive only the distal phalanx portions of the index, middle, ring, and pinkie fingers of the hand, respectively. Each fingertip segment has a distal end portion and a tubular peripheral wall that define an inner volume configured to receive only the distal phalanx portion the respective finger up to the distal interphalangeal joint. The inner volumes of the fingertip segments have lengths comprising a distance DD that are at least 20% but not more than 35% of a distance DT for the respective fingertip segment wherein the distance DT for each fingertip segment extends from the distal end of the inner volume to a line traveling laterally across the hand covering crossing a junction where the thumb portion meets the mitten shell.

The hand tool 50 is equipped with sensor groups with different information acquisition functions on each of the fingers 22A, 22B, 22C, 22D, and 22E. In other words, it is equipped with sensor groups for acquiring various information required for multimodal robot control. A visual sensor 51A for detecting visual information is installed on the thumb, an auditory sensor 51B for detecting auditory information is installed on the index finger, an olfactory sensor 51C is installed on the middle finger, a tactile sensor 51D for detecting tactile information is installed on the ring finger, and a taste sensor 51E for detecting taste information is installed on the little finger.

The utility model discloses a robot clamping portion which comprises a base, a first finger, a second finger and a third finger, the first finger, the second finger and the third finger are located on the base, the first finger comprises a first section body and a second section body, the first section body is located on the base, and a first torsion mechanism is connected between the first section body and the second section body; the second finger comprises a third section body and a fourth section body, and a second torsion mechanism is connected between the third section body and the fourth section body; the third finger comprises a fifth section body and a sixth section body, and a third torsion mechanism is connected between the fifth section body and the sixth section body; the base is provided with a fourth torsion mechanism connected with the fifth section body, and a reverse transmission mechanism is arranged between the third section body and the fifth section body. The utility model further discloses a scheme that the third section body is independently provided with an eighth torsion mechanism. Each finger can be bent independently, a linkage mechanism between the finger parts is established, and the clamping posture can be flexibly adjusted according to the shape and the requirement of a grabbed object, so that the three gestures of grabbing, holding and clamping are switched, and the adaptability and the practicability of the clamping part are improved.

An ergonomic hand grip strengthener includes a front operation handle for ergonomic placement of an index finger, a middle finger, a ring finger and a pinky finger of the holding hand of the user, a rear operation handle for abutting against a thumb and a palm of the holding hand of the user, and a strength adjustment assembly for adjusting a resistance applied to approaching movement between the front operation handle and the rear operation handle.