CN113230641B - Mechanical support device and method for preventing ankle movement sprain - Google Patents
Mechanical support device and method for preventing ankle movement sprain Download PDFInfo
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- CN113230641B CN113230641B CN202110442927.0A CN202110442927A CN113230641B CN 113230641 B CN113230641 B CN 113230641B CN 202110442927 A CN202110442927 A CN 202110442927A CN 113230641 B CN113230641 B CN 113230641B
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
- A63B71/12—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
- A63B71/1225—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the legs, e.g. thighs, knees, ankles, feet
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
- A63B71/12—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders
- A63B71/1225—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the legs, e.g. thighs, knees, ankles, feet
- A63B2071/1275—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions for the body or the legs, e.g. for the shoulders for the legs, e.g. thighs, knees, ankles, feet for the ankle
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- Physical Education & Sports Medicine (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
A mechanical support device and method for preventing ankle movement sprain. The device comprises an air bag body, a fixed accessory and an air bag stress unloading control unit; the fixing fittings are connected with the air bag body and used for fixing the air bag body at the ankle of the sporter; the fixed accessory part comprises a belt body, a belt female buckle and a belt hole; the air bag body part comprises an air bag, an air nozzle, a toe end supporting claw, a heel supporting claw, a semi-sealed partition wall, anti-skid particles, a belt buckle and a belt bolt; air bag stress unloading control unit the air bag stress unloading control unit comprises a male thread ventilation duct, a female thread inner wall, a low-permeability porous medium valve plate, a valve seat, a ball valve, a connecting rod, a bearing plate, a telescopic bag seat clamp, a plenum chamber, a shell and a through hole. By applying the invention, stable mechanical support and protection can be provided for the ankle when a sporter takes off and lands, so that the ankle is prevented from being injured.
Description
The technical field is as follows:
the invention relates to a protection device and a method applied to the field of sports protection.
Background art:
with the popularization of ball games worldwide, more and more ginseng comes with the ginseng, and most people have the experience of spraining feet and risk of spraining the feet again at any time in the ball game process. For professional athletes, the foot sprain and injury not only affect the team plan and income, but also directly destroy the professional career of the athletes; the pain-relieving and bone-setting bed also has great influence on amateurs, mild people suffer from pain and have a rest for several weeks to several months, and severe people are exposed to fracture and have a rest for one year and half, so that money and money are consumed, and the life and work of the individuals are seriously influenced. Ankle cartilage dislocation, tendon contusion, strain or fracture often occur due to unbalanced stress of supporting legs caused by unevenness of landing positions after jumping and landing. Some protection measures or solutions to this sport risk problem exist, but most of them help to fix the foot by making a unique design of the sport heel, also help to fix the ankle by wearing a sock-shaped ankle protective cover, and also have many players put a fixing bandage around the ankle before playing, but these existing methods cannot fundamentally solve the problem of foot injury caused by unbalanced ankle stress of the players.
The invention content is as follows:
in order to solve the technical problems mentioned in the background art, the invention provides a mechanical support device and a method for preventing ankle movement from being sprained, wherein the mechanical support device comprises an air bag body, a fixing accessory and an air bag stress unloading control unit, and after the mechanical support device is worn according to the given method, stable mechanical support and protection can be provided for the ankle of a sportsman when the sportsman takes off and lands, so that the ankle of the sportsman can be uniformly stressed and safely landed even if the sportsman is padded, and the ankle can be prevented from being injured.
The technical scheme of the invention is as follows: the mechanical support device for preventing the ankle movement sprain is characterized by comprising an air bag body, a fixing accessory and an air bag stress unloading control unit;
the fixing fittings are connected with the air bag body and used for fixing the air bag body at the ankle of the sporter; the fixed accessory part comprises a belt body, a belt female buckle and a belt hole; the outer side of the belt body and the inner side of the air bag body can be locked together through a belt female buckle and a belt male buckle; after the belt body and the air bag body are locked into a whole, the belt can wind around the non-stressed area below the arch of foot at the bottom of the sneaker for a circle, so that the air bag is locked and attached to the outer side of the sneaker;
the air bag body part comprises an air bag, an air nozzle, a toe end supporting claw, a heel supporting claw, a semi-sealed partition wall, anti-skid particles, a belt buckle and a belt bolt; the air nozzle is a miniature sealing channel for inflating and deflating the air bag and is thermally sealed on the whole packaging surface of the air bag; the anti-skid particles and the locking buckles are positioned on the reverse side of the air bag, the anti-skid particles are used for being in contact with the side surface of the sneaker to increase friction and prevent relative sliding, and the belt buckles and the belt bolts are respectively fixed on the edge of the air bag;
the air bag stress unloading control unit is arranged in the air bag body, is fixed in the air bag and on the semi-sealed partition wall, is used for controlling stress air-release unloading and air-release speed of the air bag body, and ensures that the air bag body does not generate mechanical rebound and movement when providing mechanical support for the ankle; the air bag stress unloading control unit comprises a male thread ventilation hole channel, a female thread inner wall, a low-permeability porous medium valve plate, a valve seat, a ball valve, a connecting rod, a bearing plate, a telescopic bag seat clamp, a plenum chamber, a shell and a through hole;
the telescopic bag is characterized in that a telescopic bag seat clamp is arranged in the shell, a telescopic bag is connected onto the telescopic bag seat clamp, an inflating nozzle is arranged on the telescopic bag, the telescopic bag is externally connected with a bearing plate, a connecting rod is welded on the bearing plate, a valve ball is arranged on the connecting rod, the valve ball and a valve seat are combined and sealed, the valve seat is welded on the shell, a low-permeability porous medium chamber is arranged at the left end of the shell, a porous medium valve block is arranged in the low-permeability porous medium chamber, and the porous medium valve block is matched and fixed with female threads on the inner wall of the shell by virtue of a male thread ventilation duct.
The air bag is formed by heat sealing of a high-strength thermoplastic polyurethane elastomer; the proportionality coefficient determination rule of the toe end supporting claws and the heel supporting claws is as shown in the formula (1) and the formula (2):
δ1the coefficient of the toe end supporting claws is equal to the ratio of the distance between the toe end supporting claws and the foremost end of the sneaker to the total length of the sneaker, and the value range is between 0.6 and 0.7;
δ2the coefficient of the heel supporting claw is equal to the ratio of the distance between the heel supporting claw and the forefront end of the sneaker to the total length of the sneaker, and the value range is between 0.8 and 0.9;
the distance between the tau toe end supporting claw and the foremost end of the sneaker is cm;
the distance between the support claw of the epsilon heel part and the forefront end of the sneaker is cm;
l, the total length of the sneaker is cm;
the distance determination rule of the toe end supporting claws and the heel supporting claws is as shown in formula (3):
X＝(δ2-δ1)L (3)
x is the optimum design distance, cm, between the toe end and the heel supporting claw
Preferably, the toe end supporting claws and the heel end supporting claws are conical after being inflated, the sharp angle faces downwards, the working window range of the stress angle alpha between the toe end supporting claws and the ground is more than or equal to 25 degrees and less than or equal to 40 degrees, and the dislocation angle formed by the heel end supporting claws and the toe end supporting claws is 20 degrees.
The mechanical supporting device is fixed at the ankle of the sneaker and is operated according to the following steps:
100% of the telescopic bags in the air bag stress unloading control unit are inflated, and the upper inflation limit pressure is not more than 0.3 MPa;
inflating the air bag body to 90% of the volume of the air bag;
attaching the back surface of the air bag body to the side surface of the sneaker, and fixing the air bag on the side surface of the sneaker by winding the air bag body around the sneaker through a belt;
and re-inflating the air bag within the range of 10% of the volume of the air bag body, reinforcing the locking degree, reducing the compressibility of the air bag, and enabling the inflation pressure in the air bag to be equal to the pressure in the telescopic bag after inflation.
The invention has the following beneficial effects: the invention innovatively provides a brand-new ankle movement sprain protection method, the used safety window value is measured through a large number of experiments, effective control over the safety working window of the air bag during working is completed through the air bag stress unloading control unit and the semi-sealed partition wall technology, and the ankle protection effect is very outstanding. As a wearable bare foot safety protection method and device, the invention designs a foot-sprain-preventing wearing device for ball sports by utilizing the characteristics of extrusion deformation and smaller mass of compressed gas, when a sporter jumps and lands and has a risk of foot-sprain, the foot-sprain-preventing air bag can be automatically compressed and deformed to mechanically support and protect the ankles of the sporter, the air bag is convenient to wear, replace and maintain, the worn foot-sprain-preventing air bag can help the ankles of the sporter to unload force, the ground of the sporter's supporting feet is always ensured to be in a balanced stress state, and the sporter is protected from foot-sprain injuries in the sport process. Rational in infrastructure, light in weight, convenient to use does not influence the take-off height and the speed of running of motion, and safe and reliable has effectively solved the person of playing and has sprained the injured potential safety hazard problem of foot, extension sportsman career.
Description of the drawings:
figure 1 is a schematic front view of the inflatable garment of the present invention.
Figure 2 is a side schematic view of the inflatable garment of the present invention.
Figure 3 is a schematic front view of the air bag of the present invention when it is not inflated.
Figure 4 is a schematic reverse view of the air bag of the present invention when it is not inflated.
FIG. 5 is a schematic structural diagram of a force unloading control unit of the air bag of the present invention.
Fig. 6 is a schematic diagram of bare foot deformation when the mechanical support device is worn and the foot is sprained when the mechanical support device is not worn.
Figure 1-bare foot protection air bag; 111-toe end support claws; 112-heel support jaw; 2-a leg portion; 3-ankle; 31-ankle outer portion; 4-shoelaces; 5-a belt; 51-belt female buckle; 52-belt hole; 6-inner side of the sneaker; 7-the outside of the sneaker; 8-half of a partition wall; 9-belt bolt; 10-buckle of belt; 11-locking buckle; 12-anti-slip particles; 13-feet of other players; 14-unbalanced stress sprain; 15-air bag stress unloading control unit; 151-male threaded vent passage; 152-female thread inner wall; 153-low permeability porous medium valve plate; 154-valve seat; 155-ball valve; 156-connecting rod; 157-a pressure-bearing plate; 158-expansion bag; 159-stretch bag holder; 1510-a plenum chamber; 1511-outer shell; 1512-a via; 1513-inflating valve.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
the mechanical supporting device comprises an air bag body part, a fixed accessory part and an air bag stress unloading control unit, and the three parts are combined to form the wearable anti-sprain foot air bag.
The fixed fitting part is connected with the air bag body part and is used for firmly wearing the air bag body on the feet of a sporter.
The air bag stress unloading control unit is arranged inside the air bag, fixed on the air bag body and the semi-partition wall and used for controlling stress air-releasing unloading and air-releasing speed of the air bag body, and mechanical rebounding and moving are avoided when the air bag provides mechanical support for the ankle.
The air bag body part comprises an air bag, an air nozzle, a toe end supporting claw, a heel supporting claw, a semi-sealed partition wall, anti-skid particles, a locking buckle, a belt buckle and a belt bolt;
preferably, the air bag is formed by heat-sealing high-strength TPU, the lower part of the air bag is provided with two mechanical supporting claws which are matched with each other, the toe end supporting claw and the heel end supporting claw are respectively arranged from the toe tip to the heel, and the two supporting claws have the following important proportionality coefficients:
δ1the coefficient of the toe end supporting claw is equal to the ratio of the distance between the toe end supporting claw and the forefront end of the sneaker to the total length of the sneaker, and the optimal value is 0.63 measured by experiments;
δ2the coefficient of the heel supporting claw is equal to the ratio of the distance between the heel supporting claw and the forefront end of the sneaker to the total length of the sneaker, and the optimal value is 0.84 measured by experiments;
distance, cm, between T toe end supporting claw and foremost end of sneaker
s distance of heel supporting claw to the foremost end of the sneaker, cm
L total length of shoes, cm
The distance design principle between the toe end and the heel supporting claw is as follows:
X＝(δ2-δ1)L (3)
x is the optimum design distance, cm, between the toe end and the heel supporting claw
Preferably, the toe end supporting claws and the heel supporting claws are inflated to form conical sharp angles and face downwards, the working window of the stress angle alpha between the toe end supporting claws and the ground is more than or equal to 25 degrees and less than or equal to 40 degrees, the design principle of the heel supporting claws is that the dislocation angle formed by the toe end supporting claws and the heel supporting claws is 20 degrees, the ankle sprain coverage area is protected to the maximum extent, the effect is the best, and the ankle after the sporter runs and lands can be protected well by the anti-spraining foot inflatable bag. The toe end supporting claw, the heel supporting claw and the ground contact part are all provided with anti-skidding treatment, so that the ankle can be stably supported.
Preferably, the air tap is a miniature sealing channel for air charging and discharging of the air bag, and is thermally sealed on the whole mounting surface of the air bag, so that the maximum upper limit of stress of the air bag can be ensured, the sealing difficulty is reduced, and the sealing performance is improved.
Preferably, the anti-slip particles and the locking buckles are located on the reverse side of the air bag, the anti-slip particles are in contact with the side face of the sneaker to increase friction and prevent relative sliding, the locking buckles are spare devices, and the belt buckle and the belt bolt are respectively fixed on the edge of the air bag.
The fixed accessory part comprises a belt body, a belt female buckle and a belt hole; the outer side of the belt body and the inner side of the air bag body can be locked together through the belt female buckle and the belt male buckle and can be detached repeatedly. The belt body with can be through the belt around the non-stress zone a week in arch of foot below of ball shoes bottom after the gas bag locking is as an organic whole, with the gas bag locking laminating in the ball shoes outside, then pass through the belt hole is with belt bolt and the gas bag fill the gassing function and adjust the dress elasticity and the firm degree of gas bag. Preferably, the outer side of the belt is provided with anti-skid particles, so that the belt can be ensured to bypass the non-stressed strips of the sole and also has a good anti-skid function.
The air bag stress unloading control unit comprises a male thread ventilation hole channel, a female thread inner wall, a low-permeability porous medium valve plate, a valve seat, a ball valve, a connecting rod, a bearing plate, a telescopic bag seat clamp, a plenum chamber, a shell and a through hole.
The telescopic bag is characterized in that a telescopic bag seat clamp is arranged in the shell, a telescopic bag is connected onto the telescopic bag seat clamp, an inflating nozzle is arranged on the telescopic bag, an external pressure bearing plate of the telescopic bag is welded on the pressure bearing plate, a connecting rod is welded on the pressure bearing plate, a valve ball is arranged on the connecting rod, the valve ball and a valve seat are combined and sealed, the valve seat is welded on the shell, a low-permeability porous medium chamber is arranged at the left end of the shell, a porous medium valve block is arranged in the low-permeability porous medium chamber, and the porous medium valve block is matched and fixed with female threads on the inner wall of the shell through a male thread ventilation duct.
The method for preventing the bare foot sprain is characterized in that a mechanical foot sprain preventing support part is worn on the outer side of a sports shoe of a sporter, and the mechanical foot sprain preventing support part is composed of an air bag with explosion-proof performance and designed according to a special proportion and structure and an auxiliary device of a stress unloading control unit of the air bag.
The method for wearing the foot-sprain-preventing air bag comprises the following specific steps:
(1) 100% of the telescopic bags in the air bag stress unloading control unit are inflated, and the upper inflation limit pressure is not more than 0.3 MPa;
(2) inflating the air bag body to 90% of the volume of the air bag;
(3) the back surface of the air bag is attached to the side surface of the sneaker, the air bag is fixed on the side surface of the sneaker by winding the sneaker for a circle through a belt,
(4) the air bag is inflated again within the remaining 10% of its volume to reinforce the locking while reducing the compressibility of the air bag, preferably at an inflation pressure equal to the pressure in the bellows.
(5) The comfort level is adjusted, and the running and jumping exercise can be carried out after the wearing is finished.
Preferably, the test measures the compression deformation degree of the air bag under the stress per second after 100% of air inflation
Is a key technical index for wearing the air bag,
the safe working window of (2) is between 3% and 7%.
When in use
When the stress of the ankle is less than 3%, the air bag provides a rigid mechanical support after the ankle is stressed unevenly, the phenomena of mechanical rebound and movement of the air bag can occur, and the ankle twisting protection performance is deteriorated;
when in use
After more than 7 percent, the air bag can deform greatly when the ankle twists, so that the twisted ankle has no place to be stressedThe increase of power, wrench amplitude appears the ankle injury risk and just also loses the original protect function of air pocket.
V100％the gas bag is filled with gas in a hundred percent and the volume is full cm3；
VAfter being stressedThe air bag is subjected to external extrusion deformation volume, cm3
The compression deformation degree of the air bag after being stressed is less than 7%, the safety ratio beta of the maximum length of the single side of the air bag to the minimum length of the air bag is less than 1.1, the size of the air bag beyond the safety beta value needs to be subjected to heat sealing partition treatment by a semi-sealed partition wall, namely the large-size air bag is subjected to heat sealing partition treatment, micro air holes are reserved in the heat sealing semi-sealed partition wall, the diameter of the micro air holes is 2mm, the air bag inflation and deflation functions are not affected, and the problem of mechanical support instability caused by large-amplitude deformation of the air bag after being stressed when the air bag is not provided with the sealed partition wall is solved.
Preferably, the effective thickness window of the inflated air bag outside the sneaker is 4cm-12cm, the space occupied by the air bag during movement of the sportsman is reduced within the thickness limit, the wearing comfort level is increased, the absolute safety of the sportsman is guaranteed, the mechanical support provided by the air bag is insufficient when the inflated thickness of the air bag is smaller than 4cm, the ankle of the sportsman is damaged easily due to the fact that the effective mechanical support cannot be obtained after the ankle of the sportsman is stressed suddenly and is unbalanced, and the air bag worn when the inflated thickness of the air bag is larger than 12cm can occupy the movement space of the sportsman and influence the movement track and the movement flexibility.
The air bag stress unloading unit is designed for ensuring that the compression deformation degree of the air bag after being stressed after being worn is in a 3% -7% safety working window, and particularly for preventing the ankle from being damaged by rigid mechanical rebound and movement of the air bag when the compression deformation degree of the air bag is less than 3%.
The air bag stress unloading control unit can prevent the air bag from being stressed and then being subjected to mechanical rebounding, the air bag deflation unloading can prevent the air bag from being stressed and then being subjected to mechanical rebounding and elastic movement, but the key point is that the air bag is always maintained to have a mechanical supporting effect on the ankle when the air bag is deflated and unloaded, so that the risk that the ankle cannot be supported by the ankle in a learning mode and the twisting amplitude is too large due to too high air bag deflation unloading speed is prevented.
The working principle of the air bag stress unloading control unit is as follows: the valve is realized by utilizing the stress area of the valve ball, the stress surface area difference of the pressure bearing plate and the cooperation of the low-permeability porous medium valve plate, and the method specifically comprises the following steps:
firstly, the air bag stress unloading unit is arranged in the air bag, then the flexible bag is inflated by air through the inflation nozzle, and the pressure is P1MPa, said pressure P1The telescopic belt drives the bearing plate to support the connecting rod and the valve ball, so as to form strict sealing between the valve ball and the valve seat.
Secondly, the air bag is inflated to 90% of the volume of the air bag, the back side of the air bag is attached to the side face of the sneaker, the air bag is fixed through a belt, then the air bag is inflated and reinforced within the remaining 10% of the volume range of the air bag, the valve ball is always kept in a closed state during inflation, whether the air bag is deflated or not is judged by observing whether the air bag is inflated, and the pressure of the inflated air bag is P2 MPa。
The opening principle of the air bag stress unloading control unit is as follows:
the forces trying to keep the ball closed are:
F1＝P1A1 (5)
the force trying to open the valve ball is:
F2＝P2(A1-A2)+P0A2 (6)
and (3) opening the flash:
F1＝F2 (7)
with P3The pressure in the air bag corresponding to the moment when the valve ball is about to open is as follows:
P3(A1-A2)+P0A2＝P1A1 (8)
the force corresponding to the moment when the valve ball is about to open is:
F1force to try to open the valve ball, MPa
F2In an attempt to maintain the force to close the valve ball, MPa
P1Is the pressure in the expansion bag, MPa
P2Is the pressure in the air bag, MPa
A2Is the total area of 3 valve balls with equal diameter in cm3
A1For telescopic packing of area, cm, of pressure-bearing plate3
P0Is at atmospheric pressure, 0.101325MPa
The P is3The pressure in the air bag corresponding to the moment when the valve ball is opened represents the critical point pressure for automatic air-releasing and unloading of the air bag, and when the pressure in the air bag exceeds P3During, the valve ball is opened, in case of the ankle wriggling provides the holding power in the wearing in-process in other words, the air bag is compressed at ankle wriggling power down volume, and internal pressure increases, and the valve ball is opened, and the automatic gassing uninstallation takes place for the air bag, has guaranteed that the compression deformation degree after the atress is greater than 3%.
Preferably, in order to ensure that the air bag always has mechanical support protection for the ankle in the air discharging and unloading process, namely the compression deformation degree of the air bag is always ensured to be less than 7% when the air bag discharges and unloads, namely the air discharging and unloading speed of the air bag needs to be controlled, the air discharging and unloading speed of the air bag after the valve ball is opened is preferably less than 3% of the volume loss of the air bag per second through experimental determination, therefore, the low-permeability porous medium chamber is designed, the porous medium valve block is installed in the low-permeability porous medium chamber, the parameter of the porous medium valve block is the air permeability of 500mD-3000mD, and the design ensures that the compression deformation degree of the air bag after being stressed is always within 3% -7% of a safety window.
The pressure of the gas filled in the air bag is the same as that of the gas filled in the telescopic bag, the total stressed area of the pressure bearing plate is 10-20 times that of the valve ball, and the valve ball is opened accurately.
When the air bag is not inflated, the front side is shown in figure 3, the reverse side is shown in figure 4, the reverse side is provided with anti-skidding particles which can ensure that the air bag cannot slide under stress after being locked, the reverse side is also provided with a locking buckle which is a spare device, and the foot naked protection air bag can be directly fixed by the locking buckle and the sneakers with the locking devices.
Taking the sporter's small W as an example, the size data of the small W sneaker is that the length L is 30cm, the inflation pressure in the telescopic bag is 0.17MPa, and the area A of the bearing plate of the telescopic bag is1Is 0.5024cm3Total area A of 3 equal-diameter valve balls2Is 0.0314cm3；
The specific anti-spraining foot case of the invention is as follows:
step 1: measuring the outer space of the small W of the sporter along the way from the heel to the toe, namely the size of the sneaker is 30 cm;
step 2: according to the design principle of the air bag supporting claw:
X＝(δ2-δ1)L (3)
now known as delta2＝0.84，δ1When L is 30cm and 0.63, the optimal distance between the toe end and the heel supporting claw is calculated to be 6.3 cm;
and step 3: selecting a device for preventing the spraining and bare feet and protecting the air bag, wherein the distance between the toe end and the heel supporting claw is 6.3 cm;
and 4, step 4: according to the optimal design principle of the supporting claw:
now known as delta10.63 and 30cm, respectivelyThe distance tau between the toe end supporting claw and the forefront end of the sneaker is calculated to be 18.9cm
And 5: the player was asked to select a 1-foot bare protective air bag having a distance of 6.3cm between the toe end and the heel support claw, the toe end support claw worn on the outer side of the player's sneaker was 18.9cm away from the foremost end of the sneaker,
step 6: the telescopic bag is inflated by gas through the inflation nozzle, and the pressure is P20.17MPa, said pressure P1The telescopic belt drives the pressure bearing plate to support the connecting rod and the valve ball under the pressure of 0.17MPa, so that the valve ball and the valve seat are tightly sealed.
And 7: the wearing method of the 1-foot naked protective air bag is that the reverse side of the protective air bag is attached to the outer side of the sneaker after 90% of air is filled, then the belt female buckle in the figure 5 is locked on the belt buckle in the figure 4, the ankle protective air bag is locked on the sneaker by utilizing the belt hole and the belt bolt, then the protective air bag is filled with air again for locking and reinforcing, the locking degree is that the air bag is 100% full of air, and the pressure is 0.17 MPa. After the ankle protective clothing is worn, the front wearing schematic shape shown in fig. 1 and the side wearing schematic shape shown in fig. 2 are formed, and at the moment, the air bag starts to protect the ankle in real time.
And 8: when a ball sporter wearing the ankle protection air bag encounters the situation that the ankle is stressed unevenly and falls on the ground, such as the foot after jumping and falling on the ground, the foot is trodden on uneven ground or the foot is padded by other players, the ankle protection air bag can provide mechanical support protection for the ankle to be twisted, the ankle is directly mechanically supported as shown in fig. 6, the ankle is not twisted and injured greatly due to unbalanced stress, and the sporter who does not wear the ankle protection device can generate the phenomenon of unbalanced stress sprain as shown in fig. 6.
In order to ensure that the compression deformation degree of the air bag is always between 3 percent and 7 percent of the safe working window, the air bag is stressed by P3Unloading then takes place automatically, known as P1＝0.17MPa，A1Is 0.5024cm3，A2Is 0.0314cm3，P0P was obtained from the following equation at 0.101325MPa3＝0.1745MPa。
That is, the critical internal pressure of the air bag for unloading is P30.1745MPa, knowing the initial pressure in the air bag as P2Therefore, according to the gas state equation, when the volume stress of the gas bag changes by 2.5%, the pressure in the gas bag rises to 0.1745MPa, and the corresponding stress unloading control unit actively opens the ball valve to unload gas, so that the stress compression deformation degree of the gas bag per second is more than 3%, and meanwhile, the porous medium valve plate with the air permeability of 500mD-3000mD controls the gas discharging speed of the stress unloading of the gas bag, so that the stress compression deformation degree of the gas bag per second is less than 7%.
In sum, little W wears to move after the ankle protection gas bag, can provide real-time flexible mechanics for its ankle and support the protection.
The air bag is convenient to wear and simple to maintain, has light weight and small size, does not influence the movement speed and the take-off height of a sporter, is firm, durable, safe and reliable, and effectively solves the problem that the ankle of a user is sprained in the process of playing a ball.
In light of the foregoing description of the preferred embodiments of the present invention, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A mechanical supporting device for preventing ankle movement sprain is characterized by comprising an air bag body, a fixing accessory and an air bag stress unloading control unit;
the fixing fittings are connected with the air bag body and used for fixing the air bag body at the ankle of the sporter; the fixed accessory part comprises a belt body, a belt female buckle and a belt hole; the outer side of the belt body and the inner side of the air bag body can be locked together through a belt female buckle and a belt male buckle; after the belt body and the air bag body are locked into a whole, the belt can wind around the non-stressed area below the arch of foot at the bottom of the sneaker for a circle, so that the air bag is locked and attached to the outer side of the sneaker;
the air bag body part comprises an air bag, an air nozzle, a toe end supporting claw, a heel supporting claw, a semi-sealed partition wall, anti-skid particles, a belt buckle and a belt bolt; the air nozzle is a miniature sealing channel for inflating and deflating the air bag and is thermally sealed on the whole packaging surface of the air bag; the anti-skid particles and the locking buckles are positioned on the reverse side of the air bag, the anti-skid particles are used for being in contact with the side surface of the sneaker to increase friction and prevent relative sliding, and the belt buckles and the belt bolts are respectively fixed on the edge of the air bag;
the air bag stress unloading control unit is arranged in the air bag body, is fixed in the air bag and on the semi-sealed partition wall, is used for controlling stress air-release unloading and air-release speed of the air bag body, and ensures that the air bag body does not generate mechanical rebound and movement when providing mechanical support for the ankle; the air bag stress unloading control unit comprises a male thread ventilation hole channel, a female thread inner wall, a low-permeability porous medium valve plate, a valve seat, a ball valve, a connecting rod, a bearing plate, a telescopic bag seat clamp, a plenum chamber, a shell and a through hole;
the telescopic bag is characterized in that a telescopic bag seat clamp is arranged in the shell, a telescopic bag is connected onto the telescopic bag seat clamp, an inflating nozzle is arranged on the telescopic bag, the telescopic bag is externally connected with a bearing plate, a connecting rod is welded on the bearing plate, a valve ball is arranged on the connecting rod, the valve ball and a valve seat are combined and sealed, the valve seat is welded on the shell, a low-permeability porous medium chamber is arranged at the left end of the shell, a porous medium valve block is arranged in the low-permeability porous medium chamber, and the porous medium valve block is matched and fixed with female threads on the inner wall of the shell by virtue of a male thread ventilation duct.
2. The mechanical support device for preventing ankle movement sprain of claim 1, wherein: the air bag is formed by heat sealing of a high-strength thermoplastic polyurethane elastomer; the proportionality coefficient determination rule of the toe end supporting claws and the heel supporting claws is as shown in the formula (1) and the formula (2):
δ1the coefficient of the toe end supporting claws is equal to the ratio of the distance between the toe end supporting claws and the foremost end of the sneaker to the total length of the sneaker, and the value range is between 0.6 and 0.7;
δ2the coefficient of the heel supporting claw is equal to the ratio of the distance between the heel supporting claw and the forefront end of the sneaker to the total length of the sneaker, and the value range is between 0.8 and 0.9;
τ: the distance between the toe end supporting claw and the foremost end of the sneaker is cm;
epsilon: the distance between the heel part supporting claw and the forefront end of the sneaker is cm;
l: the total length of the sneaker is cm;
the distance determination rule of the toe end supporting claws and the heel supporting claws is as shown in formula (3):
X＝(δ2-δ1)L (3)
x is the optimum design distance, cm, between the toe end and the heel support jaw.
3. A mechanical support device for preventing ankle movement sprain according to claim 1 or 2, wherein: the toe end supporting claws and the heel end supporting claws are in a conical shape after being inflated, the sharp angle faces downwards, the working window range of the stress angle alpha between the toe end supporting claws and the ground is more than or equal to 25 degrees and less than or equal to 40 degrees, and the dislocation angle formed by the heel end supporting claws and the toe end supporting claws is 20 degrees.
4. A method of preventing ankle movement sprains, comprising: securing the mechanical support device of claim 1 to the ankle of a player's sneaker by the steps of:
100% of the telescopic bags in the air bag stress unloading control unit are inflated, and the upper inflation limit pressure is not more than 0.3 MPa;
inflating the air bag body to 90% of the volume of the air bag;
attaching the back surface of the air bag body to the side surface of the sneaker, and fixing the air bag on the side surface of the sneaker by winding the air bag body around the sneaker through a belt;
and re-inflating the air bag within the range of 10% of the volume of the air bag body, reinforcing the locking degree, reducing the compressibility of the air bag, and enabling the inflation pressure in the air bag to be equal to the pressure in the telescopic bag after inflation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110442927.0A CN113230641B (en) | 2021-04-23 | 2021-04-23 | Mechanical support device and method for preventing ankle movement sprain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110442927.0A CN113230641B (en) | 2021-04-23 | 2021-04-23 | Mechanical support device and method for preventing ankle movement sprain |
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| CN113230641B true CN113230641B (en) | 2022-04-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034458U (en) * | 1988-07-13 | 1989-03-22 | 颜学用 | Air-filled protecting malleolus appliance |
| CN102302241A (en) * | 2011-07-08 | 2012-01-04 | 浙江水利水电专科学校 | Spring shoes |
| KR20180005469A (en) * | 2016-07-06 | 2018-01-16 | 박지훈 | Calf guard attached with spats |
| CN209286076U (en) * | 2018-03-08 | 2019-08-23 | 厦门华康奥斯医疗器械有限公司 | A kind of ankle-joint walking-aid footwear |
| CN111194196A (en) * | 2018-02-15 | 2020-05-22 | 角田纪臣 | Heel ankle protecting band |
-
2021
- 2021-04-23 CN CN202110442927.0A patent/CN113230641B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034458U (en) * | 1988-07-13 | 1989-03-22 | 颜学用 | Air-filled protecting malleolus appliance |
| CN102302241A (en) * | 2011-07-08 | 2012-01-04 | 浙江水利水电专科学校 | Spring shoes |
| KR20180005469A (en) * | 2016-07-06 | 2018-01-16 | 박지훈 | Calf guard attached with spats |
| CN111194196A (en) * | 2018-02-15 | 2020-05-22 | 角田纪臣 | Heel ankle protecting band |
| CN209286076U (en) * | 2018-03-08 | 2019-08-23 | 厦门华康奥斯医疗器械有限公司 | A kind of ankle-joint walking-aid footwear |
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| CN113230641A (en) | 2021-08-10 |
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