94 results about "Sports medicine" patented technology

A self-powered compression device for use in promoting circulation, said device embodying a plurality of inflatable sleeves arranged sequentially for applying compression to a body or limb and which further comprises a pump, a piping system and a bandage or boot to enclose the device in its entirety. A method for using self-generated pressure in promoting circulation in conditions including but not limited to, lymphatic and traumatic edemas, venous disorders, limb ulcers, varicose veins, muscle fatigue, sports medicine, cellulite treatment, diabetic feet, feet massage for recreation or cosmetic enhancements.

The body-adhesive kinesiology tape includes a strip of kinesiology tape. The strip of kinesiology tape includes a first end and a second end where the second end is opposite the first end. The body-adhesive kinesiology tape also includes a longitudinal cut in the strip of kinesiology tape extending from the first end to a pre-determined distance from the second end and adhesive on a first surface of the strip of kinesiology tape. The adhesive is configured to adhere the strip of kinesiology tape to a human body. The body-adhesive kinesiology tape further includes a backing material on the first surface of the strip of kinesiology tape. The backing material is configured to cover the adhesive and protect the adhesive from drying until a user is ready to apply the strip of kinesiology tape to the human body.

The invention discloses a multi-function animal weight-losing running table and a control system thereof. The running table comprises a running machine, a weight-losing support device and a recovery robot. Running training or combination training of running training and electric stimulus is performed on the experimental animal by arranging organic glass and a stimulating electrode on the running machine; and the weight-losing running table training combining running table training and weight-losing support is performed on the experimental animal by arranging the weight-losing support device on the running machine. In the process of weight-losing running table training, the recovery robot can assist hind legs of the experimental animal in doing exercise training, so that a correct or preset training task is provided for a passive training model, the movement locus of the hind legs in the positive training model is recorded and the record is used for quantitatively evaluating the exercising function. The invention also provides a medicinal animal experiment device which is mainly used for walking function recovery of the experimental animal with hurt spinal cord and providing the animal running table training needed by sports medicine.

The invention relates to the technical field of sports medicine and provides a muscle force assessment method and device and a muscle rehabilitation training tracking and assessment method and system. The muscle force assessment method includes the steps that image collection: ultrasonic equipment is adopted for collecting a muscle contraction image video in the moving process of a patient in real time; image preprocessing: framing is performed on the collected muscle contraction image video, so that interesting image information is extracted and the image contrast is adjusted; motion field extraction: a motion assessment method is adopted for calculating a motion field of every two adjacent frames in the image, and the motion fields represent spatial-temporal changes of an image gray value in the x direction and the y direction; a muscular movement range curve is obtained: a quantized index is extracted from the motion fields, and the muscular movement range curve is calculated in a fitting mode and serves as a reference standard of muscle force assessment. The ultrasonic equipment is used for collecting the muscle image, the muscle assessment method and device are simple and visual, requirements for a doctor and the patient are relatively reduced, and the processes of assessing muscle force are simplified.

The invention discloses a preoxidized silk long macrofiber / carbon fiber screen tire needling prefabricated body and a preparation method thereof. The needling prefabricated body is a layered composite material; each layer is a monolayer composite material prepared from the preoxidized silk long macrofiber and a carbon fiber screen tire; the monolayer composite material is formed by continuously needling radial fibers formed by preoxidized silk weftless macrofibers which are arrayed on the carbon fiber screen tire in rows; and a plurality of monolayer composite materials are needled to form a composite needling prefabricated body. The products of the invention obtained by a modernized high-tech carbon / carbon sediment process has high carbon content and no layering, and excellent performances of strong wear resistance, high temperature resistance, radiation resistance, corrosion resistance, light weight and the like, and greatly reduces the production time and the manufacturing cost. The high-performance fiber product is a novel functional structural product. The unique performance and advanced production process of the high-performance fiber product determine wide application prospect of the carbon fiber products in the fields of aviation, space flight, civil construction, sports medicine, electronic communication and the like.

The invention discloses a preoxidized silk long macrofiber / preoxidized silk screen tire needling prefabricated body and a preparation method thereof. The needling prefabricated body is a layered composite material; each layer is a monolayer composite material prepared from the preoxidized silk long macrofiber and a preoxidized silk screen tire; the monolayer composite material is formed by continuously needling radial fibers formed by preoxidized silk weftless macrofibers which are arrayed on the preoxidized silk screen tire in rows; and a plurality of monolayer composite materials are needled to form a composite needling prefabricated body. The products of the invention obtained by a modernized high-tech carbon / carbon sediment process has high carbon content and no layering, and excellent performances of strong wear resistance, high temperature resistance, radiation resistance, corrosion resistance, light weight and the like, and greatly reduces the production time and the manufacturing cost. The high-performance fiber product is a novel functional structural product. The unique performance and advanced production process of the high-performance fiber product determine wide application prospect of the carbon fiber products in the fields of aviation, space flight, civil construction, sports medicine, electronic communication and the like.

A chest protector, in sports medicine, adapted for players of the athletic games, is light in weight and reasonably comfortable to wear. It will protect the heart and chest cavity area of players in such games as lacrosse, field hockey, and baseball. The chest protector includes a shirt, preferably of two-way stretch fabric, having a large front pocket across its chest area. A protector plate is positioned within the pocket. The protector plate is an assembly of molded layers, comprising inner-most and outer-most layers of plastic, preferably polyethylene sheets; a central layer of a high impact polymer pad, preferably a dry polyurethane gel; and two layers of high impact resistant fabric of high tensile strength fibers, preferably para-aramid fibers, with the polymer pad being sandwiched between the two layers of impact resistant fabric.

The invention relates to a method for preparing platelet rich plasma (PRP) and application of the PRP. Specifically, the invention relates to a method for extracting the PRP from blood. The method comprises the steps of (a) placing collected whole blood in a container containing an anticoagulant, and making the blood and the anticoagulant fully mixed; (b) placing the blood mixed with the anticoagulant in a centrifugal tube for the first time of centrifugation, so as to make the blood divided into three layers basically; (c) extracting the uppermost layer and most of the middle layer of blood and transferring the extracted blood to a new centrifugal tube to be evenly mixed, and conducting the second time of centrifugation; and (d) discarding plasma on the upper layer of the centrifugal tube, and making precipitated blood platelets suspend again by means of the rest of plasma, so that the PRP is obtained. The invention further relates to the PRP prepared with the method, and application of the PRP to preparation of health products, for example, the PRP can be applied to the department of orthopaedics, the department of stomatology, the dentofacial surgery, sports medicine and cosmetic medicine.

The invention relates to a coordination exercise training device for double upper limbs. The coordination exercise training device comprises a plurality of keys and a central control device. Each key is provided with a pressing sensor used for collecting a pressing signal of the key, wherein the pressing sensor is provided with a signal line and / or a wireless communication device, the signal line and the wireless communication device can transmit the corresponding collected pressing signal to a central controller, a touch patch is arranged on or not arranged on the pressing end face of the key, and a convex-concave structure is arranged on the pressing end face of the key or the touch patch. The sensors are arranged on a plurality of different unit modules respectively. The unit modules are movably connected to a wheel disc in the radial direction. The wheel disc is installed on a supporting tower frame. By means of the coordination exercise training device, the evaluation and training of the hand fine movement and the upper limb rough movement are integrated, movement and cognition are combined through the biological feedback technology, the coordination exercise training device can be widely applied to geriatrics, the sports medicine, the rehabilitation department, the hand surgery, the plastic surgery, the neurology department, the pediatrics department and other clinical departments, convenience is brought to medical personnel, and the all-directional training is provided for users.

A chest protector, in sports medicine, adapted for players of the athletic games, is light in weight and reasonably comfortable to wear. It will protect the heart and chest cavity area of players in such games as lacrosse, field hockey, and baseball. The chest protector includes a shirt, preferably of two-way stretch fabric, having a large front pocket across its chest area. A protector plate is positioned within the pocket. The protector plate is an assembly of molded layers, comprising inner-most and outer-most layers of plastic, preferably polyethylene sheets; a central layer of a high impact polymer pad, preferably a dry polyurethane gel; and two layers of high impact resistant fabric of high tensile strength fibers, preferably para-aramid fibers, with the polymer pad being sandwiched between the two layers of impact resistant fabric.

The invention provides a system device for vestibular function detection and rehabilitation. The system device consists of a computer, a controllable air bag pressure platform, a micro air pump, a controller group and a three-dimensional glasses displayer. With the controllable air bag platform technology and the three-dimensional glasses displayer technology, proprioceptive sensation and vision are disturbed as much as possible so as to measure the quantitative relation of the separate vestibular sense in the function of maintaining human gesture balance. The human balance detection and rehabilitation instrument provides a new way to evaluate and analyze the vestibular function, can be used for differential diagnosis and rehabilitation of various clinical dizziness diseases, and is also suitable for training in sports medicine and aerospace medicine; and the human balance detection and rehabilitation instrument is low in manufacturing cost and easy to popularize and apply.

The proposed invention relates to the field of physical therapy and can be used for the treatment and prophylaxis of a number of diseases, and also for health-improving purposes, including improving the stamina, for instance, of athletes. The installation for conducting general air cryotherapy comprises a closed-type cryogenic chamber (1) with a door (2) with heat insulation (3) and a heat sensor (8), a refrigeration machine (7) with a condenser and a power and control unit (9), and a coolant supply line (6), wherein the refrigeration machine (7) has two cascades, and an evaporator (4) with a ventilator (5) is installed into the ceiling or wall of the cryogenic chamber (1) and is connected by means of the coolant supply line (6) to the double-cascade refrigeration machine (7), and wherein a heat control valve (12) is installed at the inlet to the evaporator (4), and the cryogenic chamber (1) is equipped with a valve for equalizing pressure with the outside environment (11), and wherein said valve (11) has an electric heater, the door (2) of the cryogenic chamber (1) is made entirely transparent and is equipped, as is the frame thereof, with an electric heater, and a control console with a sensor panel (13) is installed on the external surface of the cryogenic chamber (1). The proposed installation is more reliable than the prototype and the dimensions and cost of the installation are significantly decreased. The proposed installation can be used for the purposes of treatment and prophylaxis in the fields of rheumatoid arthritis, neurology, dermatology, traumatology and orthopedics, states of depression and stress, and in sports medicine.

The invention relates to a new system device capable of generating different kinds of stimulations, which comprises a control computer, a connection controller and a set of hood with different kinds of stimulating probes. In the system, the frequency and intensity of vibration, current, strong sound and the like are controlled accurately by methods of the stimulating interference of mechanical vibration, current, heat and cold and strong sound with vestibular sensation, the stimulating interference of the mechanical vibration and the current with proprioceptive sensation, removal interference of visual sense and the like comprehensively to interfere with the proprioceptive sensation and the vestibular sensation, so that qualitative and quantitative data of the proprioceptive sensation, the vestibular sensation and the visual sense of the human bodies in the process of maintaining balance are separated. The technical scheme and the device which are used as a new effective means for evaluating and analyzing a vestibular function by multi-interference stimulation, can be used for the positioning and qualitative differential diagnosis of various vertigo diseases, vestibular rehabilitation and the like and also can be popularized and applied in training of sports medicine and aerospace medicine.

The body sensation induced potential stimulation system based on vibration includes monolithic microcomputer, pulse shaping circuit, power amplifier circuit, state display, body sensation stimulation generator, and fixer. The monolithic microcomputer calculates to synthesize pulse drive signal with specific frequency and adjustable duty ratio, so that the body sensation stimulation system generates vibration waveform with envelope simulating true touch sensation, vibration sensation and pain sensation to reach the aim of effective body sensation stimulation. The present invention controls the generation of body sensation stimulation signal simulating touch sensation, vibration sensation and pain sensation, and may be used in the application research of body sensation induced potential SEP. The present invention has the features of high integration degree, adjustable strength, high performance / cost ratio, etc. and may be widely applied.

Methods, systems, and computer-readable media are provided for enabling improvements in athlete training and injury management through entropy and third-order spectral analysis of digitized force-vs-time time series from movements. In embodiments, entropy and / or bispectral statistics are determined using time-series information obtained from movements of an athlete, such as squat jump and countermovement jump maneuvers, using a biomechanical sensor, such as a digital force plate apparatus. These statistics may be used to facilitate sports medicine and health management of the athlete. In some embodiments, where athletes are involved in sport that involves explosive power development in the lower extremities and extensive running, cutting, jumping or other movement having risk of injuries to the lower extremities, time series force plate data are obtained and transformed to calculate entropy and bispectral statistics, from which functional status of the lower limbs and readiness for safe return-to-lay may be ascertained.

The invention relates to platelet-rich plasma freeze-dried powder and a preparation method and application thereof, in particular to a method for extracting platelet-rich plasma from blood and preparing the free-dried powder of the platelet rich plasma. The method includes the steps of (a), placing whole blood into a container with anticoagulation agents, and evenly mixing the blood with the anticoagulation agents; (b), placing the blood in a centrifugal tube, and performing primary centrifugation to separate the blood into three layers; (c), extracting the upper layer and most of the middle layer, transferring the extracted blood into a new centrifugal tube, evenly mixing, and performing secondary centrifugation; (d), discarding the upper plasma of the centrifugal tube, enabling sedimentary blood platelets to be re-suspended by using the residual plasma to obtain the platelet-rich plasma; (e), adding freeze-drying excipients into the platelet-rich plasma, and freeze-drying the platelet-rich plasma to obtain the platelet-rich plasma freeze-dried powder. The plateletrich plasma freeze-dried powder is applicable to the fields such as the orthopaedics department, the stomatology department, dentofacial surgery, sport medicine and cosmetic medicine. The freeze-dried powder comprises the freeze-drying excipients and has an excellent technical effect.

The invention discloses a multifunctional space body-building device which is characterized by comprising a stress metal frame, various spring exercisers and fixed foot rings. Under a space weightlessness state, the principle of force and reacting force is utilized for strength trainings, and the stress metal frame is of an assembling type and assembled by using a supporting bar, a stress bent bar, a stress cross bar and a fixed base, wherein all the metal bars are connected, and tenons are embedded in pipe cavities to fix the metal bars by combining screws; and the fixed foot rings are matched to bear acting force during strength trainings. An upper limb spring exerciser, a waist and belly spring exerciser and a lower limb spring exerciser are also designed with different lengths and different contractility by further utilizing the expansion force of a high-strength elastic band and various training postures designed according to the ergonomic principle, and three body building modes are designed by combining the influence of weightlessness on human body physiological functions in the aerospace medicine and utilizing sports medicine theories and methods according to the ergonomic principle, thereby successfully realizing various training actions under gravity environment.

The invention relates to an experimental method and an experimental device for injury research, in particular to an experimental method and an experimental device for testing the stress of brain tissue in deceleration injury based on a visual head model. The experimental method and the experimental device are characterized in that: a head model with similar dimension to a real human head is established, the deformation condition of bubbles in the intracranial brain tissue of the head model in the deceleration impact process can be observed by means of a high-speed video camera by a method for generating the bubbles in a brain tissue model, and the stress distribution of the brain tissue and the variation condition thereof are obtained through analysis. The experimental method and the experimental device can be applied to brain deceleration injured experimental research in traffic medicine, sport medicine and aerospace medicine, and other aspects.

The proposed apparatus and method relate to restorative sports medicine and patient rehabilitation with neurological motoric disorders. A patient is positioned in equilibrium by suspension devices for patient's body parts. The suspension devices are moved by actuating mechanisms with an electro-pneumatic drive and actuating components, controlled by a programmed computer, motivating the patient by controlling an object in a virtual gaming environment, to restore movements when there is an initially minimal or a complete absence of physical activity. The effectiveness is judged according to the reduction of energy consumption of the drives. The apparatus includes a base composed of two parallel guides with movable crossbars, on which the actuating mechanisms are pairwise movably arranged, monitoring and control units, the computer, sensors detecting the state of the actuating mechanisms, and power sources. There are units for analyzing the energy consumption of each drive and for assessing the treatment results.

The invention discloses a sport medicine or rehabilitation science hemiplegia body builder. The body builder comprises a support, a movable armrest, a rotating pedal, a seat and a foot massage device;the support comprises support rods fixed to the two sides of the bottom, multiple transversely arranged cross rods, a horizontally laid base plate fixedly supporting the seat and the foot massage device, a stand column supporting and fixing the rotating pedal and foot pads, the movable handle is fixed to the front of the hemiplegia body builder and comprises a connecting rod and a grab rail, therotating pedal comprises pedal bodies, double Z rotating shafts and a bearing pedestal fixed to the top of the stand column, the seat comprises a base, a cushion, a back cushion and a headrest, a strong spring is connected between the cushion and the back cushion, a movable moment arm is arranged on the outer side of the back cushion of the seat, and the movable moment arm comprises a power box, rotating shoulders symmetrically arranged on the two sides of the power box, a mechanical arm, a mechanical forearm and a holding rod; by means of the movable moment arm of the body builder, upper limbjoint exercise strengthening can be achieved for patients suffering from hemiplegia, the upper limb physical condition of the patients is greatly improved, and the rehabilitation speed is greatly increased.

The invention discloses a joint surgery postoperative rehabilitation training device for sports medicine, and belongs to the technical field of rehabilitation training. The rehabilitation training device comprises a big arm fixing part which is detachably fixed to a big arm on the upper portion of an elbow joint on the affected side; a forearm fixing part which is detachably fixed on the forearm at the lower part of the elbow joint on the affected side; a wrist fixing part which is fixed at the wrist joint of the affected side; a first air bag which is arranged between the big arm fixing part and the small arm fixing part and is positioned at an included angle formed by the big arm and the small arm when the elbow joint extends and contracts; a second air bag which is located between the wrist fixing part and the hand; an extruding device which is used for extruding the second air bag to enable air in the second air bag to enter the first air bag. According to the rehabilitation training device, synchronous coordination training of the elbow joint, the wrist joint and the finger joint can be achieved under the condition that power is not needed, and postoperative recovery of a joint injury patient is facilitated.

The invention provides a rehabilitation exercise monitoring method and device, and the method comprises the steps: obtaining input data which comprises patient body feature data, illness information and exercise medical data; automatically generating a standard rehabilitation action and corresponding training time according to the input data; through an augmented reality technology,virtualizing apreset standard rehabilitation action ; monitoring the training action of the patient, judging whether the training action of the patient meets the standard rehabilitation action or not, and judging the completion time, the completion frequency and the completion intensity of the standard rehabilitation action of the patient so as to judge whether to remind the patient to continue training or not.According to the invention, rehabilitation training actions can be virtually played, rehabilitation training guidance is provided for a patient, rehabilitation training monitoring can be carried outon the patient, and the patient is urged to complete rehabilitation training.

The invention discloses an injury simulation device of a combined injury in vehicle collision. A stand pipe and a rack are arranged on a base plate. a long strip-shaped steel disc is arranged on the stand pipe vertically; the upper end portion of the steel disc is suspended; and an active collision board is arranged at the suspended end of the stand pipe. The rack is at the right of the stand pipe; a passive collision board that is corresponded to the active collision board is arranged on the rack, wherein the passive collision board is in a vertical arrangement. According to the invention, formation of a combined collision injury of a brain of an occupant during the vehicle collision can be accurately and vividly simulated; and a proportion of linear acceleration to angular acceleration can be conveniently controlled and adjusted as well as the device has advantages of ingenious conception and practical structure; therefore, the injury simulation device not only can be used for vehicle collision study but also can be promoted to be applied to fields like sports medicine and criminal research and the like.

The invention relates to an application of keratinocyte growth factor-2 in the preparation of medicines for preventing and curing lung injury. The invention has the advantages that single-medicine or medicine combination scheme is used to recombine human keratinocyte growth factor-2 (KGF-2) to cure and prevent lung injury / respiratory distress syndrome caused by any factor; and the lung injury / respiratory distress syndrome is in an important position of the special medicine such as the treatment of high altitude lung injury, the military medicine, the sports medicine and the treatment of lung injury / respiratory distress syndrome caused by other diseases. The above diseases can be subclinical, mild, moderate, severe or life-threatening lung injury. Researches show that KGF-2 can maintain the dynamic equilibrium of alveolar surfactants to promote hyperplasia, migrate cells and repair lung injury; and the KGF-2 plays an important role in protecting air-blood barrier to be intact, maintaining the cytoskeletal and intercellular splicing homeostasis, promoting the lung water to be removed and reducing or avoiding alveolus-capillary stress failure.

The invention relates to the field of medical instruments and in particular to a respiration simulator for cardiopulmonary exercise testing. The cardiopulmonary exercise testing is gradually popularized in China, and mainly used for the fields of rehabilitation medicine and sports medicine, and capable of providing clinic guide of quantifiable data for preoperative evaluation, postoperative rehabilitation, athletic training and the like, and providing a quantifiable data reference foundation for a clinicist. Because human body inhaled and expired gas components, gas concentration and gas flowrates of a person are not consistent in conditions of different time, environments and statuses, and initial conditions are difficult to be reproduced, cardiopulmonary indexes measured every time aredifferent, and reproducibility and consistency of a measuring result are poor, so further research of the cardiopulmonary exercise testing is hindered. In order to overcome deficiency of the prior art, the respiration simulator for the cardiopulmonary exercise testing is provided, and capable of relatively steadily simulating the human body inhaled and expired gas components, the gas concentrationand the gas flow rates.

The invention belongs to the technical field of medical instruments and particularly relates to an articular post-surgical rehabilitation training device for sports medicine. Aiming at problems of inconvenience in detection of rehabilitation conditions of patients and poor comfort in use of an existing rehabilitation training device, the scheme is put forward and includes that the articular post-surgical rehabilitation training device comprises a base, a limiting rod is fixed to one side of the top outer wall of the base through screws, a sleeve sleeves the outer wall of one side of the limiting rod, the outer wall of one side of the base is provided with a slide plate slide groove, and a slide plate is in slide connection with the inner wall of the slide plate slide groove. The outer wallof one side of the sleeve is fixed to the outer wall of one side of the slide plate through a screw, and a temperature regulation box is fixed to the outer wall of the top of the slide plate throughscrews. The articular post-surgical rehabilitation training device has advantages that the height of an air bag seat cushion can be adjusted according to heights of users, the temperature of the air bag seat cushion can be adjusted conveniently, comfort in use can be improved beneficially, the device is convenient for the patients to stand up and sit down and can serve as a wheelchair, and convenience in data recording and analyzing of the rehabilitation conditions of the patients is achieved.

The invention provides a partial absorbable sport medicine orthopedic suture line and a production method thereof. The suture line is characterized in that part of suture line is absorbable, and shelllayer weaving yarns are partially absorbable yarns formed by twisting absorbable fibers and non-absorbable fibers. The production method is characterized by comprising the following steps: firstly, twisting the absorbable fibers and the non-absorbable fibers into partially absorbable yarns by a doubler winder to be used as braided yarns; then selecting suitable structure, process and parameters,and producing the suture lines of required specifications by using a textile micro shaping weaving technique. The suture line obtained in the invention can be used for avulsion repairing of joint softtissues, and plays a good dynamics support during the repairing process. During the healing process, the absorbable fibers can be gradually degraded, and uniform pores are formed in surfaces, so thatthe growth and migration of cells are facilitated and tissue healing is promoted; in addition, the non-absorbable fibers in each strand of weaving yarns can ensure the relative stability of the structure during degradation.

The invention relates to the field of medical equipment, in particular to a breathing simulator for cardiopulmonary exercise function testing. Cardiopulmonary exercise function testing has gradually become popular in China. It is mainly used in the fields of rehabilitation medicine and sports medicine. It provides clinical guidance with quantifiable data for preoperative evaluation, postoperative rehabilitation, and competitive training, and provides quantifiable data references for clinicians. . Since the gas composition, gas concentration, and gas flow rate inhaled and exhaled by the human body are inconsistent under different conditions of time, environment, and state, and the initial conditions are difficult to reproduce, the cardiopulmonary indicators measured each time are always different. The measurement results The poor reproducibility and consistency of the results hindered further research on cardiopulmonary exercise testing. In order to overcome the deficiencies of the prior art, a breathing simulator for cardiopulmonary exercise function testing is provided, which can relatively stably simulate the gas composition, gas concentration, and gas flow rate inhaled and exhaled by a human body.

The invention relates to the field of orthopedic sports medical instruments, in particular to an arthroscope infusion device for orthopedic sports medicine. A stand column is perpendicular to the ground; a tripod base is arranged below the stand column; pulleys are arranged below the tripod base; the tripod base can freely move and can be placed randomly, but the surgery is not affected; the standcolumn is welded with an upper support rod; the support rod is of a protruding structure; the support rod and the stand column are hollow; a movable rod and a chain are arranged between the support rod and the stand column; a locking cap is sleeved above the movable rod; a hook is installed on the periphery of the locking cap; a chain transmission device is installed on the side faces of the stand column and the support rod; and the chain and the movable rod are locked through a link hole; and the chain mobilizes the movable rod to move up and down. The device is small in size and does not occupy much space. The material is firm and not easy to damage. Through chain connection, the handle is rotated to achieve lifting of the frame, the pulleys on the base can move and is provided with a locking device, and the hook at the water hanging position can be folded and rotated.