34 results about "Leg strength" patented technology

A system for evaluating lameness of animals is provided. In the system, one or more imaging devices are configured to capture a recording of an animal walking or standing from a profile view, an anterior view, or a posterior view. A computing device is in communication with the one or more imaging devices, and the computing device is configured to access an artificial intelligence model to analyze the recording to assign a lameness score to the animal. The computing device then outputs the lameness score to a user. In addition, pressure-sensing mats with force plates are configured to measure the leg weight bearing and total body weight of animals to track fluctuations in body weight and leg strength. Also disclosed are a method of identifying lameness in an animal and a mobile application that implements the method.

The invention relates to the technical field of martial art training accessory devices, and discloses a martial art leg strength training device which comprises a supporting mechanism, the supporting mechanism comprises a supporting frame, a gymnastic mat is fixedly connected to the inner wall of the supporting frame, and a first push rod is fixedly connected to the inner wall of the side, away from the gymnastic mat, of the supporting frame; a fixing frame is fixedly connected to the output end of the first push rod, a connecting frame is fixedly connected to the outer wall of the top of the fixing frame, a second sliding groove is formed in the outer surface of the connecting frame, and a first telescopic rod is fixedly connected to the inner wall of the side, close to the second sliding groove, of the connecting frame. When the sandbag is kicked, the sandbag can transmit force generated by side kicking to a third sliding block through a rotating frame, then the third sliding block slides along the inner wall of a third sliding groove and extrudes a second push rod, then the sandbag can swing in the fixed direction, and therefore the situation that the sandbag shakes irregularly and hurts a trainee accidentally is avoided.

The utility model relates to the technical field of medical instruments, and particularly provides an infant vertical-lying position X-ray positioning pad and a medical auxiliary instrument.The infant vertical-lying position X-ray positioning pad comprises an inflatable backrest, an inflatable cushion, a supporting rod, a supporting rod, a supporting rod and a supporting rod, the inflatable backrest is provided with a restraining end, and the restraining end is used for restraining the body part of an infant; the inflatable cushion body is fixedly connected with the inflatable backrest, and the inflatable cushion body is used for fixing the buttocks of the child patient; wherein a hip supporting concave part is arranged in the inflatable cushion body, a left fixing hole and a right fixing hole are formed in the side, away from the inflatable backrest, of the hip supporting concave part at intervals, the left fixing hole is used for fixing the left leg of an infant, the right fixing hole is used for fixing the right leg of the infant, and then the two legs of the infant are restrained; the infant is prevented from struggling away from constraint by means of leg strength, the examination stability can be improved, the situation that the X-ray examination effect is poor due to movement of the infant can be avoided, and the X-ray diagnosis accuracy is further improved.

A starting block easy to adjust. An adjustment toothed plate (4) is fixed to an outer side of each foot pedal (2), a fixed toothed plate (3) that meshes with the adjustment toothed plate (4) is fixed on a base main body (1), and an adjustment handle (5) is connected to the adjustment toothed plate (4); and a fixed shaft (6) is transversely arranged inside each foot pedal (2), a locking gear (7) and an adjustment gear (8) that mesh with each other are sleeved on the fixed shaft (6), the locking gear (7) is provided with a locking assembly, the adjustment gear (8) is connected to a foot support plate (9), and the foot support plate (9) is rotatably connected to the front end of each foot pedal (2). An athlete or a coach can perform fine adjustment on the front-rear position of each foot pedal (2) by means of operating the adjustment handle (5) connected to the adjustment toothed plate (4), such that the adjustment process is both smooth and highly precise; and the locking assembly is arranged on the locking gear (7) to control the locking and unlocking of the locking gear (7), thereby facilitating flexible rotation driven by the adjustment gear (8) and the angle fixing of the foot support plate (9), adapting to the differences in individual starting techniques and leg strength, enabling quick adjustment to an optimal starting posture, and thus helping to improve the starting efficiency and reducing the muscle burden at the start.

1. Name of the design product: leg strengthener. 2. Use of the design product: mainly used for training leg strength. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses a shield cutterhead torsion leg strength evaluation method, a shield cutterhead torsion leg strength verification method and a related device, and relates to the technical field of cutterhead torsion leg strength evaluation.The method comprises the steps that torsion leg structure characteristic parameters and cutterhead structure characteristic parameters are determined; the twisted leg structure characteristic parameters and the cutter head structure characteristic parameters are obtained from design data of the shield cutter head twisted leg; a mechanical simplified model calculation result is obtained based on the torsional leg structure characteristic parameters, the cutterhead structure characteristic parameters and a mechanical simplified model, and the mechanical simplified model is a bending and torsional combined cantilever beam model with the connecting position of a torsional leg and a cutterhead bearing load and the connecting position of the torsional leg and a flange being fixed; the calculation result of the mechanical simplified model is the equivalent maximum stress of the twisting leg and the distribution position of the maximum stress, and the strength of the twisting leg of the shield cutterhead is evaluated according to the equivalent maximum stress of the twisting leg and the distribution position of the maximum stress. According to the method, the strength of the cutterhead can be evaluated more efficiently and accurately.

The invention relates to a walking training device for assisting rehabilitation of stroke patients, comprising a control box, one side of the control box is detachably provided with a climbing assembly, the control box is provided with second chutes arranged at equal intervals, each second chute is slidably connected with a step block, and the adjacent step blocks have a height difference. Two handrails are arranged above the control box, a supporting assembly for supporting the handrails is arranged on the control box, and a lifting assembly is arranged in the control box. Through cooperative arrangement of the lifting assembly and the step block, the upper surface of the control box can be switched between a plane state and a step state, the plane state can meet the basic requirements of daily walking rehabilitation training of a patient and fitting with weak leg strength in the initial stage, and the step state can carry out enhanced training of going up and down stairs. The advanced requirement after strength improvement in the later period of rehabilitation is met, the training strength can be flexibly adjusted according to the leg strength change of the patient, and the whole rehabilitation period from foundation to reinforcement is covered.

The leg strength training trousers comprise a trouser body, the trouser body comprises a trouser waist and trouser legs, the outer wall faces of the trouser legs are sleeved with resistance belts, the resistance belts are arranged on the outer wall faces of the trouser legs in a sleeved mode through resistance belt restraining strips, and the resistance belt restraining strips are arranged on the outer wall faces of the trouser legs. And the resistance band restraint strips are arranged on the outer wall surfaces of the trouser legs around the thighs. And the resistance band restraint strips are arranged on the outer wall surfaces of the trouser legs around the shanks. And the bottom surfaces of the trouser legs are fixedly connected with pedal belts. The leg exercise pants have the advantages that the leg exercise pants are more reasonable in structural design, low in processing and manufacturing cost, convenient to operate and good in exercise effect, the resistance belts can be fixed in the constraint area, the resistance belts cannot slip from the legs after the pants body is worn, and a plurality of resistance belts can be used for training at the same time so that leg muscles can be exercised more sufficiently and efficiently.

The utility model discloses a leg strength training device, which relates to the technical field of rehabilitation medical treatment and comprises a base, a sliding rail is arranged on one side of the top surface of the base, a training mechanism is arranged on the top surface of the sliding rail, and a lifting mechanism is arranged on the other side of the top surface of the base. Through the cooperation of the training mechanism, the sliding plate, the rotating rod, the first rotating buckle, the second rotating buckle, the spring, the bearing plate, the fixing plate, the bandages and the hook-and-loop fasteners, the shank of a patient is placed on the fixing plate, the two hook-and-loop fasteners are pulled to drive the two bandages to wind the shank of the patient, and the two hook-and-loop fasteners are bonded together. The shanks of a patient are fixed to the fixing plate through hook-and-loop fasteners and bandages, the patient lifts the shanks to drive the rotating rods to rotate through the fixing plate and the bearing plate, the rotating rods rotate to drive the springs to stretch through the second rotating buckles, and the springs stretch to generate resistance so as to train the legs of the patient. The training strength of the patient can be adjusted by adjusting the number of the springs between the first rotating buckle and the second rotating buckle.

The utility model discloses a patient restraint chair for psychiatry department, which belongs to the technical field of psychiatry department and comprises a chair back and a chair seat, supporting legs are arranged on two sides of the lower surface of the chair seat, elbow positioning devices are arranged on two sides of the upper surface of the chair seat, a fixing plate is arranged between the supporting legs, two symmetrically arranged leg positioning devices are arranged in the fixing plate, and the two leg positioning devices are arranged on the chair back. A rotating handle is arranged to drive a lead screw to rotate, a movable block moves under the limiting of a first strip-shaped hole to a telescopic rod, the telescopic rod drives a binding belt to move, the binding belt is adjusted according to the elbow gravity center positions of patients of different physiques, and the applicability of the device is improved; the gear drives the gear rack to move relatively, so that the arc-shaped clamp firstly clamps the legs of the patient, then the legs are tightened through the tightening belt, positioning of the legs can be enhanced, and the possibility of looseness caused by large leg strength is reduced.

1. The name of the design product: leg strength trainer. 2. The use of the design product: leg strength training when doing body building. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The leg strength training device comprises a bottom plate and an adjusting assembly, the upper surface of the bottom plate is fixedly connected with a weight sensor, the adjusting assembly comprises a fixing rod, a motor, a threaded rod, a first sliding block and a first supporting column, and the upper surface of the weight sensor is fixedly connected with the fixing rod; a first groove is formed in a fixing rod, a motor is fixedly connected to the left surface of the fixing rod, and the upper surface of a first sliding block is fixedly connected with a first supporting column, the device can adjust the use position of a training roller according to trainees with different leg lengths, so that the trainees can keep correct training postures for training; by means of the leg training device, the risk of injury in the training process is reduced, the legs can be massaged after leg training, blood circulation of leg muscles is promoted, the degree of muscular soreness is relieved, and a trainee can recover from the fatigue state more quickly.

The invention provides a climacteric female osteoporosis prevention exercise auxiliary device which comprises a base, one end of the top of the base is fixedly connected with a supporting cabinet, an arm strength training mechanism used for arm training is arranged in the supporting cabinet, and a leg training mechanism used for leg strength training is arranged on one side wall of the supporting cabinet. A supporting cylinder is fixedly connected to the top of the base and located outside the supporting cabinet, a liftable adjusting rod is arranged in the supporting cylinder, a bearing plate is fixedly connected to the end of the adjusting rod, a plurality of back massage sticks are arranged on the vertical face, located on the leg training mechanism, of the supporting cabinet at equal intervals, and a plurality of climbing rods are fixedly connected to the side, away from the leg training mechanism, of the supporting cabinet at equal intervals. In conclusion, the back massage rods and the climbing rods are evenly distributed in the vertical direction. In conclusion, the device has the advantages that cost is reduced, the device is suitable for simultaneous exercise of multiple persons, the training atmosphere is good, the number of training item choices is large, safety is high, the exercise effect is good, and osteoporosis is comprehensively prevented.

The invention discloses a rehabilitation training device for elderly nursing, and relates to the field of rehabilitation training, the rehabilitation training device comprises a training chair and a first support plate, one side of the training chair is provided with two positioning members, and the top of the first support plate is provided with a control mechanism. According to the device, linkage movement of a reciprocating plate, a driving plate, a driving rod and other parts is achieved through driving of a gear motor, a movable plate, a swing plate, a fixed rod and the like are controlled to operate under the locking effect of three adjusting pieces, two second supporting plates can move synchronously, and the two second supporting plates can move alternately; by means of the mode, the training rehabilitation effect is improved, the training diversity is increased, leg muscles of a trainee are comprehensively exercised through alternate knee bending actions and synchronous knee bending actions, leg strength and flexibility can be improved, and meanwhile dull and monotonous possibly caused by single actions are avoided.

The invention discloses leg strength training equipment, and relates to the technical field of swimming training. A connecting plate is slidably connected to the upper portion of the fixing plate, a pedal is fixedly mounted above the connecting plate, a rack is fixedly mounted at the bottom of the connecting plate and meshed with a gear, the gear is connected with a first transmission wheel through a transmission mechanism, and the first transmission wheel is in transmission connection with a second transmission wheel through a first transmission belt. A ratchet wheel is fixedly installed in the center of the second transmission wheel and meshed with a pawl, and the pawl is connected with a first threaded rod through a reset spring. According to the invention, through leg straightening and power generation, the connecting plate drives the rack to move, and through transmission of structures such as the gear, the sliding plate stretches and compresses the spring to store energy. Along with continuous training, the resistance is increased, and leg kicking and power generation are simulated after leg muscle fatigue in swimming. When the legs bend and reset, the ratchet wheel and the pawl do not hinder. According to the design, resistance is changed according to leg strength, force generation and fatigue are simulated, and a user is helped to exercise and lift better.

This invention discloses a method and system for adaptive detection of a trainer based on leg strength training images, belonging to the field of image data processing technology. The method includes the following steps: monitoring the initial acquisition qualification of leg strength training images; monitoring the accuracy of leg feature recognition; and monitoring the trainer's reception. This invention improves the accuracy of the trainer's adaptive resistance feedback by evaluating the initial acquisition qualification of leg strength training images and determining whether to optimize the initial acquisition; quantifying the accuracy of leg feature recognition and determining whether to optimize it based on the quantification results; and finally monitoring the trainer's reception accuracy and determining whether to analyze the trainer's feedback accuracy. This solves the problem in existing technologies where low accuracy in adaptive resistance feedback is caused by interference from leg strength training image recognition.

The utility model discloses an orthopedic joint exercise instrument which comprises a lower supporting base, four sets of rubber non-slip mats are installed at the bottom of the lower supporting base, a reciprocating type exercise assembly is installed on the lower supporting base, a fixed foot sleeve is installed on the reciprocating type exercise assembly, and an adjustable hand-held assembly is installed on the lower supporting base. An inclined supporting plate is fixedly installed at one end of the lower supporting base, a supporting frame is fixedly installed on one side of the lower supporting base, and an elbow joint exercising assembly is fixedly installed on the supporting frame. And the device can be adjusted according to the height of a patient and is suitable for rehabilitation exercise of arms of the patient, and the overall diversity is improved.

The utility model discloses an autonomous functional exercise rehabilitation instrument for a bedridden patient, and belongs to the technical field of rehabilitation instruments. The rehabilitation instrument comprises a movable front fixing support and a movable rear fixing support, and a top plate is arranged between the front fixing support and the rear fixing support. The bottom of the top plate is slidably connected with two leg training frames, and two strength adjusting assemblies matched with the leg training frames are arranged at the bottom of the top plate. Each leg training frame is correspondingly connected with an upper limb training assembly. A patient pushes the leg training frame forwards through leg strength, then the leg training frame is pulled back through the upper limb training assembly, interactive exercise of the upper limbs and the lower limbs can be achieved, the exercise effect is improved, and the rehabilitation instrument is simple in structure, free of electronic equipment, low in cost and long in service life.

The utility model relates to the technical field of medical rehabilitation training, and discloses a medical leg rehabilitation trainer for bedridden patients, which comprises a bottom box, a vertical plate is fixedly connected to the upper surface of the bottom box, and a rotating mechanism is rotatably arranged on the vertical plate; through cooperation of a rotating mechanism, an auxiliary driving mechanism, a mounting mechanism, a leg supporting mechanism and a massage mechanism, the rotating mechanism can be actively driven to rotate through the auxiliary driving mechanism, so that the legs of a patient are assisted to be lifted and put down, and the old patient whose leg strength is insufficient to support and lift can conveniently use the device; the leg rehabilitation training device is simple in structure and convenient to use, rehabilitation training of a patient in the initial stage of a surgery is facilitated, meanwhile, the patient can exert force by himself or herself to conduct leg rehabilitation training, the application range of the device is widened, the position of the massage bat can be adjusted in the leg training process, and therefore the legs can be massaged conveniently, the blood flowing effect of the legs is improved, and the rehabilitation training efficiency of the legs is improved.

The utility model discloses a rehabilitation training device for neurology department, which relates to the technical field of neurology department and comprises a bottom plate, an electric push rod is fixedly arranged on one side above the bottom plate, the output end of the electric push rod is fixedly connected with a seat, a support plate is arranged on one side of the upper surface of the bottom plate, and a vertical rod is fixedly arranged on the other side of the upper surface of the bottom plate. The rehabilitation training device for the neurology department comprises a supporting plate, two supporting frames are symmetrically and fixedly arranged on the upper surface of the supporting plate, a movable frame is arranged in each supporting frame in a sliding mode, a rotating shaft is rotationally arranged in each movable frame, and a pedal is fixedly arranged on one side of the outer surface of each rotating shaft. Through cooperation of the pedal and the telescopic spring, leg strength and joint motion range training can be carried out, through arrangement of the lead screw, the lifting block and the holding rod, arm flexion and extension training and other training can be achieved, the leg rehabilitation training function and the arm rehabilitation training function are integrated, the structure is convenient to adjust, and the comprehensiveness and efficiency of rehabilitation training are improved.

An exercise apparatus for leg strengthening has a frame, a knee support for supporting a knee of a user relative to the frame, a leg brace for bracing a lower leg of the user relative to the frame, and a linkage assembly facilitating performance of a hamstring curl exercise motion wherein a chest of the user is lowered and then raised relative to the frame. The linkage assembly has a driver arm pivotably coupled to the frame and supporting the chest of the user, a loaded arm pivotably coupled to the frame above the driver arm and providing or supporting a load, and a connecting arm pivotably coupling the driver arm to the loaded arm so that lowering of the chest during the hamstring curl exercise motion is resisted by the load and so that raising of the chest during the hamstring curl exercise motion is assisted by the load.

The utility model relates to the technical field of exercise devices, and discloses a combined physical exercise device which comprises a supporting beam, one end of the supporting beam is connected with a C-shaped bottom frame through a bolt, an inclined rod is welded to the position, close to the other end, of the lower surface of the supporting beam, and the bottom end of the inclined rod is connected with a T-shaped bottom frame through a bolt. The upper surface of the supporting beam is connected with a seat support through bolts, the top face of the seat support is connected with a seat cushion through bolts, and the two sides of the supporting beam are connected with vertical supporting rods through bolts. A body-building person sits on the seat cushion, leans against the backrest, pulls the pull rod and drives the balancing weight to ascend and descend through the pulley, arms and the back can be exercised, pulling force and muscle strength can be improved, shanks make contact with the lifting rod, the legs exert force, the balancing weight is driven through transmission of the steel wire rope and the pulley, leg exercise is achieved, and leg strength and joint flexibility are enhanced. And one device integrates various exercise modes, so that the space is saved, and the exercise effect and efficiency are improved.

The invention discloses a curve skilled action training device for skating athletes, relates to the technical field of skating training devices, and solves the problems that when the athletes carry out curve sliding training, the speed feeling, the action feeling, the centrifugal force perception and the like of the athletes during curve sliding are difficult to simulate, and a training method and device are lacked. The upper end of the supporting beam is hinged to the upper end of the rotating spindle, and the lower end of the supporting beam is connected with the training cabin. The training device can assist the athlete in effectively simulating the angular velocity and the roll angle during curve sliding, strengthens the exercise of leg strength in the process of simulating the athlete to pass through the curve at a high speed, controls and collects various information of the athlete in real time through the computer and the electronic sensor, and improves the training accuracy of the athlete. Instant information feedback and later analysis are provided for coaches, and a good effect is achieved for effectively improving curve sliding skills and special strength of athletes.

The invention relates to the technical field of interventional postoperative nursing devices, and discloses an interventional postoperative nursing device and a using method thereof. The interventional postoperative nursing device comprises a joint supporting plate fixedly connected to the outer wall of a sliding block, an elastic plate is fixedly connected to the inner wall of the joint supporting plate, and two sliding grooves are formed in the outer wall of the joint supporting plate; when the leg of a patient is fixed, the joint is placed on the joint supporting plate, meanwhile, due to the fact that the weight of the leg exerts pressure on the joint supporting plate, the joint supporting plate is made to be close to the supporting plate, the joint supporting plate moves to drive the sliding block on the joint supporting plate to move together, a reset spring is stretched at the same time, and further the leg is fixed. When the leg is placed on the joint supporting plate, the elastic plate in the joint supporting plate enables the joint supporting plate to be tightly attached to the leg of the patient under the action of the sliding block and leg strength, so that the leg of the patient is better protected and supported during nursing, and the probability of injury of the leg is reduced.

The utility model relates to a maintenance device, in particular to a leg exercising device for old people maintenance, which comprises a treading shell, lifting components are mounted in grooves formed in two sides of the treading shell, a pedal is fixedly mounted between the two lifting components, the lower end face of the pedal is fixedly connected with one end of a treading spring, and the other end of the treading spring is fixedly connected with the other end of the treading spring. According to the leg strength training device for the old people, the legs are massaged while the old people do leg strength training, the purpose that training and massaging are neglected at the same time is achieved, and the nursing and training efficiency of the old people is improved.

The invention relates to a Tai Chi supporting device for enhancing leg strength of old people, and belongs to the field of rehabilitation and fitness equipment for old people. The support aims at solving the problems that traditional Tai Chi training equipment is narrow in application range, insufficient in safety redundancy and lack of pertinence of special crowds. By means of modular design, the square aluminum stand column comprises a chassis, a square aluminum stand column, a semi-annular supporting handrail, a multi-degree-of-freedom damping arm and an oblique projection module, and stable basic support and dynamic assistance are provided. Wherein the height of the semi-annular supporting handrail can be adjusted, and static support is provided for the upper limbs; the multi-degree-of-freedom damping arm is provided with an adjustable damper and a limb fixing bandage, and dynamic stability assistance of tremor prevention is achieved; the oblique projection module projects the action guide content obliquely downward at 45 degrees. The whole set of system is centrally regulated and controlled through the control box and can meet the requirements of the old, people with muscle strength decline, special crowds with Parkinson's disease and the like, and the training safety and effect are improved.

The utility model relates to the technical field of leg exercisers, in particular to a leg exerciser convenient to adjust, which comprises a machine body and an adjusting device, a base is arranged on the lower surface of the machine body, a round roller is rotatably connected to the surface of the machine body, a pedal is fixedly connected to the surface of the round roller, and the adjusting device is arranged on one side of the machine body and comprises a fixing plate. A first hole is formed in the surface of the fixing plate, a sliding rod is connected to the first hole in the surface of the fixing plate in a sliding mode, a ferrule is fixedly connected to the surface of the sliding rod, a resistance plate is fixedly connected to the side, away from the ferrule, of the sliding rod, and a threaded hole is formed in the surface of the fixing plate. The leg strength can be gradually adapted and enhanced from small resistance, the situations of excessive fatigue and injury are reduced, and for an exerciser with a certain foundation, the resistance is increased, so that muscles can be further challenged, and the improvement of the strength and the endurance can be promoted.

The utility model relates to the field of athletic training assistance, in particular to a multi-mode athletic training assisting device which comprises a base, a groove is formed in the top of the base, a moving plate is arranged in the groove, moving strips are welded to the two sides of the moving plate, moving grooves are formed in the inner walls of the two sides of the groove, and the moving strips are arranged in the moving grooves. One side of the moving strip is slidably connected with the inner wall of the moving groove, a concave plate is fixedly arranged at the top of the moving plate, the inner wall of the concave plate is slidably connected with an adjusting plate and an adjusting mechanism which facilitate leg pressing, and the adjusting mechanism is arranged in the concave plate and used for adjusting the height of the adjusting plate. The training mechanism is arranged in the groove, so that the user can conveniently perform leg strength training. The height of the adjusting plate can be adjusted through the adjusting mechanism, leg pressing at different heights is facilitated, and a user can conveniently perform leg strength training through the training mechanism.

Our squat toilet represents a long-overdue expansion of the existing portable toilet market, enabling users to perform two of the most natural bodily functions in a simple, practical, convenient, hygienic, and healthy way, safely and physiologically correctly. It offers all age groups and genders an unprecedented opportunity for hygienically safe, location-independent, and physiologically correct bowel and bladder emptying. Its unique design allows for a fully natural squatting position, enabling complete bowel emptying without artificial straining and its associated risks. This helps prevent typical health problems caused by excessive straining, including digestive issues such as diarrhea or constipation, gastrointestinal cramps, incontinence, erectile dysfunction, pelvic floor weakness, and spikes in blood pressure. Furthermore, daily squatting maintains both the natural mobility of the lower extremities (ankle, knee, and hip joints) and leg strength (for standing up). Even in cases of pre-existing health problems such as hemorrhoids, erectile dysfunction, incontinence, digestive problems, high blood pressure and much more, the squat toilet could support the recovery process in addition to conventional, mainstream medical therapies by avoiding unnecessary strain. The buttocks, which hover freely over the edge of the squat toilet, avoid direct contact with germs or bodily fluids in a simple and natural way. Its globally unique design allows for splash-free defecation and urination. Our squat toilet is designed for user-friendliness. It is easy to handle, intuitive to use, easy to transport, easy to clean, yet sturdy, stable, and natural.

The invention relates to a leg strength exercise device for physical education, which comprises a rack, a counterweight mechanism and an intelligent control mechanism, a seat is fixedly mounted on the rack, a rotating rod is rotatably connected to the rack, and a leg pressing roller is fixedly mounted on the rotating rod; the counterweight mechanism comprises a lifting plate, a guide sliding rod and a distribution box, the guide sliding rod is fixedly connected to the rack, the lifting plate is slidably connected to the guide sliding rod, a pull rope is fixedly connected to the lifting plate, the end, away from the lifting plate, of the pull rope is fixedly connected to the rotating rod, and an electromagnetic damping coil is arranged in the guide sliding rod. Compared with the prior art, the leg strength exercise device for physical education can accurately control the resistance during sliding of the lifting plate, the requirements of a user for individuation and flexible adjustment of the training strength in the exercise process are met, it is ensured that the exercise strength always meets the preset requirement, too high or too low exercise strength is avoided, and the training effect is guaranteed.