215 results about "Injury cause" patented technology

The invention provides a device and equipment for evaluating the dose-effect relationship of craniocerebral injury caused by human body explosive shock waves and a medium, and relates to the technical field of craniocerebral injury dose-effect relationship evaluation.The method comprises the steps that firstly, the scale law relationship of explosive shock wave attenuation coefficients of different species is established, and the incidence pressure peak values of the forehead of the human body corresponding to different incidence overpressure duration time are calculated; and then establishing a human body craniocerebral explosion injury 50% survival curve, and evaluating the craniocerebral injury dose-effect relationship of the person to be evaluated based on the curve. According to the evaluation device, by combining experimental animals with different weights and skull thicknesses, high-precision physical head models and other outfield actual explosion experiments, the dose-effect relationship of the craniocerebral injury of the experimental animals is transited to people, the dose-effect relationship of the craniocerebral injury of the human body is established, a craniocerebral injury evaluation system of the human body explosive shock waves is formed, and the complex structure of the craniocerebral of the human body is considered; and the dose-effect relationship of the animal is filtered into the human body, so that the dose-effect relationship of craniocerebral injury when the human body is subjected to explosion impact can be evaluated more accurately.

The invention relates to the technical field of vertical shaft hoists, and discloses a vertical shaft hoist safety protection device which comprises a hoist platform. The protection unit comprises a support installed on the elevator platform, and a stand column is installed on the support; the turnover mechanism is arranged on the stand column and makes contact with a steel rope of the elevator body, and the turnover mechanism carries out the lifting action on the steel rope; and the speed reducing mechanism is used for reducing the speed of the steel rope, so that the steel rope is prevented from being damaged during falling protection. Safety of the steel rope of the elevator body is guaranteed through the turnover mechanism and the speed reducing mechanism, the turnover mechanism rapidly lifts the steel rope when the steel rope tends to fall, rapid falling is avoided, system safety is guaranteed, meanwhile, the speed reducing mechanism can stably reduce the speed, disperse impact force and protect the physical structure of the steel rope, and safety of the elevator is guaranteed. The matching of the two effectively solves the technical problems that the brake device is damaged due to overload of the rope, and the rope loses restraint and slides down.

The present invention discloses a locking mechanism and a sheet-like door railing therewith and, compared with the traditional one, the present invention, based on the prior art, through the fitted connection between the hook portion and hook groove, ensures that the outer door railing remains fitted connection with the locking mechanism, without local reset, when the zip tie or rope at the corresponding position is cut, thereby avoiding possible body injury caused by reset.

The utility model discloses a tissue repair support which comprises a base plate, a second connecting arm is fixed on the outer wall of the base plate, an adjusting mechanism is installed on the base plate, a first connecting arm is installed on the adjusting mechanism, and two symmetrical plastic plates are installed on each of the first connecting arm and the second connecting arm. The adjusting mechanism comprises a rotating cylinder rotationally arranged on the base plate, a fixing block located in the rotating cylinder is fixed to the base plate, the outer wall of the fixing block is sleeved with a clamping piece, a plurality of clamping grooves are formed in the inner wall of the rotating cylinder, the first connecting arm is fixed to the outer wall of the rotating cylinder, and a through hole allowing a bandage to penetrate through is formed in the plastic plate. The utility model effectively solves the problems provided by the background technology, further realizes fixation after angle adjustment, is convenient and practical, supports the joint of the arm after keeping a relatively stable angle, is beneficial to injured tissue repair, and avoids secondary injury caused by emergency reaction.

The application discloses a wearing device for protecting Taijiquan sports injury, which is characterized in that an active connecting part is arranged on a leg supporting frame near the upper area of human ankle, and the upper and lower sides of the active connecting part are connected with left and right limiting components for limiting the leg supporting frame from moving; the left and right limiting components can make the calf standing posture incline forward and backward and the foot freely move; the upper and lower sides of the active connecting part near the back of the leg are further connected with a forward-inclination adjusting component for limiting the forward-inclination range of the calf and the knee joint standing posture; and the leg supporting frame is further connected with a radial adjusting device, and the leg supporting frame is tightly connected with the calf through the radial size adjustment of the leg. When the wearing device is used, the length of the forward-inclination adjusting component is adjusted to control the injury caused by the excessive forward inclination of the knee in the sports process. The application provides the soft tissue injury of the calf and the knee in the squatting and half squatting process in the sports process.

The present invention relates to a smart textile garment, a system and a method for functional assessment and monitoring of the lumbar spine, based on the acquisition of bioelectrical signals and data concerning a user's postures and movements, which, in combination with artificial intelligence techniques, allows the sensations perceived by the user to be objectively assessed and classified, eliminating the subjective component in this operation. For this purpose, the garment of the invention incorporates a plurality of textile electrodes for acquiring various bioelectrical signals, such as ECG (HRV), EMG and / or EDA, which are processed by control electronics linked to a movement and posture acquisition system and to processing software that uses machine learning methods to associate patterns of movement and posture with bioelectrical signals indicative of injuries causing lumbar pain.

The invention discloses construction and application of an HPLC (High Performance Liquid Chromatography) fingerprint spectrum for integrally controlling a multi-component material basis of a traumatic injury bone-growing capsule, and belongs to the technical field of quality control of traditional Chinese medicine preparations. According to the method, high performance liquid chromatography and mass spectrometry are combined, and neochlorogenic acid, protocatechuic aldehyde, cryptochlorogenic acid, vanillic acid, rosmarinic acid, alkannic acid, berberine hydrochloride and salvianolic acid B are taken as reference substances; the fingerprint spectrum is successfully constructed by detecting different batches of traumatic injury bone-growing capsules. The method is simple and easy to implement, high in precision, good in reproducibility, accurate and reliable, at least eight components can be confirmed at a time under the same chromatographic condition, the detection efficiency is greatly improved, and time and cost are saved; quality monitoring can be carried out on a plurality of characteristic components of the traumatic injury bone-growing capsule accurately, rapidly and simultaneously, and a powerful guarantee is provided for controlling the quality and ensuring the clinical curative effect of the traumatic injury bone-growing capsule.

The utility model relates to the technical field of door and window structures, in particular to an anti-pinch sliding door structure which comprises a door frame, sliding rails installed on the inner sides of the lower end and the upper end of the door frame, two door bodies movably installed between the door frame and the sliding rails in a staggered mode and pulleys installed at the upper ends and the lower ends of the door bodies and matched with the sliding rails. An anti-pinch mechanism used for reducing impact force when the door body is closed is arranged between the door body and the left end and the right end of the door frame. According to the sliding door, an original sliding door structure is scientifically and reasonably improved, the transverse sliding grooves, the anti-pinch sliding blocks, the middle groove and the spiral extrusion spring are arranged on the door body, meanwhile, the flexible rubber strip is arranged on the door frame, and therefore impact force generated in the door body closing process can be flexibly resisted and buffered; and the occurrence of impact damage and clamping injury of the door body, the door frame and limbs of a user is effectively reduced, so that the safety and the working stability of actual use of the sliding door are improved.

The utility model discloses a landscaping grafting device which comprises a knife handle and a knife body installed on the knife handle, a cutting edge is arranged at the bottom of the knife body, a blocking mechanism is arranged on the knife body, and the blocking mechanism comprises two sets of blocking pieces and two sets of telescopic pieces. Through the designed blocking mechanism, when the grafting knife is thrown aside conveniently after grafting is completed, the bottom of the baffle and the bottom of the rubber protection strip both exceed the distance of the cutting edge below the knife body, and the cutting edge is protected through the baffle and the rubber protection strip; the cutting edge is prevented from being collided and damaged due to the fact that the cutting edge firstly makes contact with an external object, after the grafting knife is thrown aside, when fingers of a person touch the sharp cutting edge by mistake, the sharp cutting edge is protected through the baffle and the rubber protection strip, the fingers are prevented from being injured due to direct contact with the cutting edge below the knife body, and safety is improved.

The invention relates to medicine, and more particularly to a novel method for the control of stepping movements in patients with traumatic injuries or diseases of the spinal cord and / or the brain using transcutaneous electrical stimulation, which includes continuously stimulating the spinal cord at the level of the C5-C6, T11-T12 and L1-L2 vertebrae and simultaneously creating a synergistic effect to control foot movement by means of spatial-temporal stimulation of the flexor and extensor muscles of the lower leg in the corresponding phases of the gait cycle. This combined spinal and muscular stimulation enables a coordinated, complete gait, in which the patient is able to control the stepping movements, including controlling foot movements.

The utility model discloses a release paper cutting device with a protection mechanism, and particularly relates to the field of cutting devices.The release paper cutting device comprises a fixed mounting base, a fixed mounting table is mounted at the top of the fixed mounting base, and a limiting guide plate is arranged at the top of the fixed mounting table; the release paper cutting device is provided with the protection device, the arrangement of the protection shielding frame can limit the placement position of release paper, the damage risk caused by equipment faults can be reduced, the release paper is stably limited in the cutting process, accidental injuries caused by manual operation are reduced, the production efficiency is improved, and the production loss is reduced. The purpose of good protection effect is achieved; the device is provided with the cutting mechanism, the supporting spring can push the movable metal sleeve in the vertical direction to complete automatic reset, the cutting process is easy and convenient to operate, a user does not need to manually adjust or make contact with a cutting part, the safety in the cutting process can be improved, and accidental injuries caused by equipment faults are reduced.

The invention discloses a binding device in a lift car. The binding device comprises a telescopic device, a binding belt and a fixing head. The telescopic device is fixed in the lift car; the binding belt is a flexible rope or belt, one end of the binding belt is fixed to the telescopic device, and the other end of the binding belt is fixed to the fixing head. The binding belt is contained in the telescopic device in a winding mode, can be pulled out by external force and can be wound and stored by the telescopic device after the external force is released. And the binding belt is used for fixing the robot in the lift car in a preset space. A device for fixing the robot can be provided for passengers, so that the robot is restrained in the preset space in the elevator car, and injuries caused by accidental movement to the passengers are avoided.

The utility model discloses an electric nail clipper with a protection mechanism, which comprises a nail clipper body, a clipper head is arranged on the nail clipper body, a pressing trigger structure is arranged between the clipper head and the nail clipper body, and the pressing trigger structure switches on or switches off a clipper head driving circuit according to the pressed condition of the clipper head. According to the nail clipper, the pressing trigger structure is arranged between the clipper head and the nail clipper body, the clipper head needs to be pressed with certain strength during normal use, the pressing trigger structure is connected with the clipper head driving circuit, and then the clipper head can move to trim nails; when the touch pressing force of lips or tongues is not enough to trigger the pressing triggering structure to switch on the tool bit driving circuit, the tool bit does not act, so that children are effectively protected, and injuries caused by accidents are avoided.

The utility model relates to the technical field of fitness equipment, and particularly provides a bench press plate and a bench press device. The headrest section is arranged at one end of the bench press plate body; the headrest section is arranged at one end, deviating from the headrest section, of the bench press plate body; the backrest section is arranged between the headrest section and the hip supporting section; the backrest section is provided with a balance part and a lifting mechanism, the lifting mechanism is connected with the balance part, and the lifting mechanism is located below the balance part. The balance part and the lifting mechanism are arranged on the backrest section, the balance part abuts against ribs in the middle of the shoulder blades and the spine, and asymmetry of spine joint muscles of the body is adjusted and compensated through the lifting mechanism. Muscles on the two sides of the body can be developed in a balanced mode, the problem that the muscles are unbalanced due to the fact that one side is heavier is solved, and therefore overall harmonious development of the body is promoted in long-term training. Potential injuries caused by improper postures can be prevented, and unnecessary pressure of joints and ligaments can be relieved in the training process.

The utility model provides an adjustable transfer type shoulder push training device, which relates to the technical field of fitness equipment and comprises a bottom support, a supporting component fixedly connected to the top end of the bottom support, a torsion component fixedly connected to the outer side of the supporting component, an auxiliary component fixedly connected to the outer side of the torsion component and comprising a moving column. The two moving columns are arranged, the close sides of the two moving columns are slidably connected with connecting columns, the outer sides of the moving columns are in threaded connection with second rotating blocks, and the ends, away from the connecting columns, of the moving columns are fixedly connected with auxiliary cushion blocks, so that a user can adjust equipment according to personal training requirements, training is more in line with personal body types, and the training effect is improved; and by adjusting the angle and resistance of the shoulder push, the angle can be adjusted according to users with different heights, the discomfort or injury risk caused by misoperation of players for green hand training is effectively reduced, the equipment is more convenient and safer to use, and the device is suitable for wider user groups.

The utility model provides a front sole shockproof shoe sole which comprises a shoe sole body, a shock absorption piece is arranged at the bottom of the front end of the shoe sole body, the shock absorption piece is of an E-shaped structure, and the shock absorption piece is arranged towards the rear end of the shoe sole body. And the hardness of the damping piece is greater than that of the sole body. The damping piece of the E-shaped structure is combined with the characteristic that the hardness is larger than that of the sole body, and the remarkable damping effect can be provided. The shoe can effectively reduce the impact force borne by the front sole when the front sole touches the ground, reduces the risk of foot injury, and particularly plays an important protection role for people who often run. And the hard damping piece can provide better support and stability for the front sole. In the walking or moving process, the forefoot can be prevented from being excessively twisted or turned on one side, and accidental injuries caused by foot instability are reduced. The damping piece with high hardness generally has better wear resistance and durability. The shoe sole can bear more impact force and friction and is not prone to damage, and the service life of the shoe sole is prolonged.

The utility model discloses a safety protection structure for a vertical type lifting platform milling machine, which relates to the field of milling machine processing, and comprises clamping grooves I which are transversely and symmetrically arranged at the top end of a working table, the working table is positioned on one side of the vertical type lifting platform milling machine, and limiting grooves I are symmetrically arranged on two longitudinal sides of the working table; safety protection plates matched with the first limiting grooves are symmetrically arranged on the two transverse sides of the workbench, clamping pieces matched with the first clamping grooves are arranged on the sides, close to each other, of the two safety protection plates, and connecting assemblies matched with the workbench and the safety protection plates are arranged on the sides, away from each other, of the two clamping pieces. Under the matching action of the working table, the safety protection plate, the clamping piece and the connecting assembly, in the working process of the vertical lifting platform milling machine, the situation that the body of an operator is injured due to splashing of metal filings can be avoided, the safety of the operator is protected, and the body injury caused by splashing of the metal filings is avoided.

A modular portable anti-choking device featuring multiple suction patterns controlled via embedded computing programs is disclosed. The device incorporates an air propeller to generate suction, user-type settings for customizations, and pressure sensors for safety. A dual power supply system enables portability. The compact design makes it suitable for use in various environments including homes, restaurants, and any other settings. Its modular structure allows for easy disassembly, cleaning, and reassembly, making it easy for repeated use. The device ensures effective, safe, adaptable, and reliable operation by dynamically adjusting suction strength based on user-type and real-time sensor data, while minimizing the risk of airway injury caused by excessive suction pressure.

The invention discloses an adjustable anti-sprain sports kneecap, and particularly relates to the technical field of sports protective equipment, the adjustable anti-sprain sports kneecap comprises a kneecap body and bandages mounted on the upper side and the lower side of the kneecap body, and first anti-collision pads are arranged on the front side of the outer surface of the kneecap body and the left side and the right side of the outer surface of the kneecap body; a second anti-collision pad is arranged on the rear side of the outer surface of the knee pad body, and the first anti-collision pad comprises a first memory cotton layer. According to the adjustable anti-sprain sports kneecap, in actual work, when the knee joint is impacted instantly, the anti-collision module disperses impact force through a layered buffering mechanism, the memory foam absorbs impact energy through material deformation, the action time is prolonged, the peak pressure is reduced, the EVA bottom layer further absorbs energy through material elastic deformation, and the anti-sprain sports kneecap is formed. Meanwhile, residual impact force is evenly diffused to surrounding soft tissues, local concentrated stress is avoided, and therefore the anti-collision effect can be effectively improved, and knee joint injuries caused by external collision are effectively avoided.

The utility model relates to the technical field of pediatric rehabilitation devices, and discloses an anti-falling device for pediatric rehabilitation, which comprises a supporting seat, the bottom end of the supporting seat is fixedly connected with a supporting frame, the inner side wall of the supporting frame is rotatably connected with a strap, the bottom end of the strap is rotatably connected with a baffle, and the inner wall of the supporting frame is provided with a fixing mechanism; the fixing mechanism comprises a connecting spring, one end of the connecting spring is fixedly connected to the inner wall of the supporting frame, the other end of the connecting spring is fixedly connected with an inserting column, the bottom end of the supporting frame is rotationally connected with a rotating ring, and the inner wall of the rotating ring is rotationally connected with a rotating column. According to the rehabilitation device, when the legs of a rehabilitative person are not strong, the rehabilitative person can move downwards to make contact with and drive the baffle to move downwards, so that the multiple sets of inserting columns move downwards to be connected with the inserting holes in an inserted mode, the rotating column is fixed, overall movement of the device is avoided, and injuries caused by the fact that the legs of the rehabilitative person are not strong are reduced.

The utility model discloses a high-comfort limb restraining device for the neurosurgery department. The high-comfort limb restraining device comprises a core annular frame. An annular air bag is arranged in the core annular frame body; a hollow grab handle is fixedly arranged at the rear part in the core protection bracket; the design that the core annular frame body is combined with the inner annular air bag guarantees effective constraint on limbs of a patient, the wearing comfort is remarkably improved due to the softness and the moderate pressure adjusting capacity of the air bag, and skin bruise possibly caused by traditional hard materials is effectively avoided. In the cooling function, bagged ice blocks can be placed in the hollow grab handle, physical cooling can be carried out on the palm of a patient through the closed space formed by the cover body and the hollow grab handle, and the cooling device is particularly useful for the medical process needing to keep the temperature of the hand stable. The palm of the patient can be protected through the design of the core protection support, and self-injury caused by disorderly grabbing and moving in the operation process is avoided.

The invention discloses a vehicle door hinge tool, and relates to the field of tools, the vehicle door hinge tool comprises a hinge mounting tool, a connecting arm and a screw-in structure, and a mounting hole is formed in the hinge mounting tool; the connecting arm is arranged on the hinge assembly tool, the connecting arm is provided with a plurality of vehicle door hinges, and the vehicle door hinges are spaced in the height direction of the vehicle door hinge tool; the screw-in structure is arranged in the mounting hole in a penetrating mode and can move in the axis direction of the mounting hole to push the connecting arm to rotate so as to adjust the spatial position of the vehicle door hinge. Therefore, when the vehicle door hinge tool is used, only one hand is needed to hold the connecting arm to reduce the risk of personnel injury caused by inclination of the connecting arm, the other hand is needed to screw the screw-in structure, the position of the vehicle door hinge can be adjusted, the vehicle door hinge can be rapidly and finely adjusted only by one person, operation is easy and convenient, the labor cost and the time cost are saved, and the working efficiency is improved. And the production takt is improved.

The utility model relates to the technical field of mechanical engineering, and discloses a rotating machine bending fault detection device which comprises an opening and closing assembly, an opening and closing piece, two supporting plates, two fixing plates, a first rotating rod, a second rotating rod, a third rotating rod and a fourth rotating rod, the fixing plates are arranged on one side of the supporting plate, and the supporting plates are arranged on the other side of the supporting plate. The two first rotating rods and the two second rotating rods are arranged on one side of the fixing plate, the two first rotating rods are arranged on the inner wall of the supporting plate, and the two second rotating rods are arranged. The transparent protective cover has the beneficial effects that the transparent protective cover has many benefits during detection, physical isolation is constructed between an operator and a rotating mechanical part rotating at a high speed, when accidents such as part breakage occur, dangerous objects can be prevented from splashing, the safety of the operator is ensured, the operator operates and observes outside the cover, the risk of injury caused by mistaken touch is reduced due to the safety distance, and the safety of the operator is ensured. And a safe environment is created for detection.

The utility model relates to the technical field of medical supplies, in particular to a sitting and lying dual-purpose safety restraint strap which comprises a restraint strap body, the restraint strap body is a waistcoat and is provided with an opening in the back, a hook-and-loop fastener hook face and a hook-and-loop fastener loop face which are matched with each other are arranged at the opening of the restraint strap body, and the restraint strap body is of a back opening type. On one hand, the hook-and-loop fasteners are used for preventing a patient from opening the hook-and-loop fasteners by himself / herself, assisting wearing and taking off the hook-and-loop fasteners more conveniently, can fix bandages on the two sides with bed plates, fences and the like on the two sides of a bed body after wearing, and can also be fixed to the two sides of a wheelchair or a flatcar when the patient goes out for examination on the wheelchair or the flatcar, so that movement of the body is limited, and the patient is prevented from being injured during hospital The falling-down and falling-off of a patient with high falling-down risk caused by privately getting out of the bed are evaluated, so that the body injury caused by falling-down is reduced, two elastic bands are connected to the other sides of the two fixing parts in a sewing manner, so that the patient can turn over and sit up conveniently, and pressure injury caused by long-term bed lying is avoided.

The application discloses a safety belt device of a penetrating anchor of a civil aviation safety belt, which comprises a safety belt assembly, a buffer assembly and an anchoring assembly, the safety belt assembly comprises two shoulder binding safety belts, two waist binding safety belts and two leg binding safety belts, and the same-side shoulder binding safety belts, waist binding safety belts and leg binding safety belts are connected and fixed through safety connection boxes, and the buffer assembly comprises a mounting box fixedly arranged between the two safety connection boxes, the safety belt assembly, the buffer assembly and the anchoring assembly are arranged, the safety belt assembly is used for fixing the body of a flight attendant, can be used in standing posture or sitting posture and the like, the buffer assembly can protect the body of the flight attendant, reduces injuries caused by stress of the safety belt and the like, the anchoring assembly cooperates with the buffer assembly and the safety belt assembly to ensure the stability of the flight attendant, and harm caused by plane bumping is avoided.

The utility model provides an elevator arc-shaped lintel, and relates to the technical field of elevator lintels, the elevator arc-shaped lintel comprises a lintel plate, a bottom plate is fixedly arranged at the bottom of the lintel plate, an arc-shaped plate is fixedly connected between the bottom plate and the lintel plate, and the arc-shaped plate is arranged in an arc shape. Through the arrangement of the arc-shaped plate, the arc-shaped plate is designed to be in an arc shape, accidental injury possibly caused by a traditional right-angle side is effectively avoided, the risk that maintenance personnel are injured due to collision or scratch in the operation process is greatly reduced, and the operation safety of the maintenance personnel is guaranteed; the arc-shaped design endows the lintel with softer and smoother lines, so that the whole lintel is more attractive.

This utility model relates to the field of circular saw technology and discloses an anti-slip dust-free circular saw, comprising: a motor housing, a fixed protective cover fixedly installed on the outer wall of the motor housing, a handle fixedly installed on the side of the motor housing, and a battery box fixedly installed at the end of the handle away from the motor housing. Through the overall design of the side-slip protection mechanism, when the saw blade extends into the interior of the object being cut, the outer wall of the object limits the telescopic protective cover, causing the moving block to slide on the outer wall of the slide bar, while simultaneously compressing the elastic element. If side-slip occurs accidentally, this structure will slide off the object being cut. At this time, the telescopic protective cover will lose its blocking and limiting function. The initial elastic force of the elastic element pushes the telescopic protective cover back to its original position, covering the exposed saw blade again, thus achieving the anti-slip protection function, reducing the probability of other injuries caused by the saw blade, and improving the safety of the structure.

The utility model belongs to the field of aluminum products, particularly relates to an automatic punching and polishing device for aluminum products, and aims to solve the problems that a large amount of dust and smoke are generated in the punching and polishing process of the existing aluminum products and cannot be effectively collected and treated, so that the working environment is polluted, and the working efficiency is high. In order to solve the problems that in the prior art, dust and smoke diffuse to cause blurred sight, the sight and judgment of operators are affected, and the bodies of the operators are injured, the following scheme is provided that the device comprises a machining table, a supporting frame is welded to the top side of the machining table, and two mounting plates are arranged at the bottom of the supporting frame. When the dust collection device is used, dust and smoke generated in the punching and polishing processes can be captured through the dust collection cover, the dust and the smoke are effectively collected, flying dust and smoke are prevented from polluting the working environment, the sight and judgment of operators are prevented from being influenced, body injuries to the operators are greatly reduced, and the working efficiency is improved. And the applicability is improved.

The invention discloses fitness safety auxiliary equipment for physical training, and relates to the technical field of physical training, the fitness safety auxiliary equipment comprises a frame body unit, the frame body unit comprises a side frame, a middle frame is mounted at the side part of the side frame, a vertical frame is mounted at the top of the side frame, and a supporting stool is mounted at the top of the middle frame; a supporting plate used for intermittently supporting the waist of a user is movably arranged on the surface of the supporting stool, and a safety frame is arranged on the surface of the vertical frame. By means of falling support of the balance rod and the balance block, a first buffering piece and a second buffering piece which are used for buffering falling of the balance rod and the balance block, and rigid support of the cross rod, the situation that the outer sleeve rod falls to crush a user is reduced, and the supporting plate descends when the barbell is lifted and ascends when the barbell descends, so that the user is prevented from being injured. Therefore, supporting protection on the waist is completed on the premise of not influencing the power generation of bench press muscles, and accidental injuries caused by exhaustion of the lower strength of a user are avoided.

The utility model relates to the technical field of exercise training, in particular to an air resistance type leg swinging trainer. The device comprises a bottom plate and gantry supports symmetrically and vertically arranged on the front side and the rear side of the surface of the bottom plate, a shell covers the two gantry supports, grabbing pieces are symmetrically arranged on the left side and the right side of the upper portion of the shell respectively, a supporting mechanism is arranged on the bottom plate below the grabbing pieces, and an air supply mechanism is arranged on the bottom plate in the shell. And supporting beams connected with the two vertical beams are respectively arranged at the upper parts of the two gantry brackets. The device is reasonable in structural design, small in occupied area and high in universality, an air resistance type structure is adopted, the swing force is stable and controllable, the leg load of a user can be effectively controlled, the risk of leg strain is avoided, the resistance of air resistance is controllable and can be adjusted in time according to the habit of the user, the resistance is within the force bearing range of the user, and the use safety of the user is improved. The training purpose can be achieved, the risk of injury caused by too large resistance can be avoided, and the problems existing in the prior art are solved.