Device for preventing foot drop

Abstract

This invention discloses a foot drop prevention device, relating to the field of rehabilitation equipment technology. It includes a base plate and a foot sleeve, with the foot sleeve positioned above the base plate. A mechanism for inducing ankle dorsiflexion is installed on the supporting side plate. This foot drop prevention device retracts both ends of the elastic band, thereby increasing the binding force applied to the dorsum of the foot. This not only enhances the user's exercise intensity but also allows for appropriate adjustment of the dorsum of the foot resistance training according to the user's actual foot drop condition. It avoids using excessive resistance that exceeds the foot muscles' capacity, leading to muscle overload and causing muscle fatigue, strain, or other injuries. It also avoids using too little resistance, which would not produce sufficient exercise effects. Furthermore, it promotes the rehabilitation and functional recovery of the neuromuscular system in the damaged area, achieving the purpose of muscle contraction and movement. This rubbing stimulation method helps prevent foot drop by enhancing nerve conduction and muscle control in the foot muscles.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation equipment technology, specifically to a device for preventing foot drop. Background Technology

[0002] Foot drop is a common sign in orthopedic surgery. It manifests as a sitting position where both lower limbs hang naturally with the feet in plantar flexion and completely unable to actively dorsiflex, invert, or evert. Foot drop can be caused by sciatic nerve palsy and common peroneal nerve palsy. In some patients, it can be corrected and prevented through exercise. Foot drop is caused by weakness or damage to the plantar muscles. This condition usually makes it difficult to lift the foot, leading to walking difficulties. Patients with foot drop can prevent and correct it by wearing a foot drop orthosis.

[0003] Traditional foot drop prevention devices, when used in resistance training, may cause problems due to varying symptoms and severity among individuals. Using excessive resistance can exceed the foot muscles' capacity, leading to muscle overload, fatigue, strains, or other injuries. Furthermore, excessive resistance may make it difficult for muscles to perform movements correctly, resulting in incorrect movement patterns and increasing the risk of injury. This is especially true for individuals whose feet are already in a vulnerable state. If the resistance is too light, the muscles may not receive effective challenge and stimulation, failing to achieve the desired therapeutic effect.

[0004] In addition, traditional foot drop prevention and correction devices have limited applicability and cannot provide skin stimulation treatment for patients with motor neuron disease, neurogenic foot drop, or those who experience fatigue from long-term self-flexion of the feet. As a result, exercise fatigue often occurs, interrupting the exercise process and preventing the activation of the nervous system to induce a reflex. Foot drop can only be prevented through self-exercise, and the exercise method cannot be adjusted according to the needs of different patients.

[0005] Therefore, in view of this, the present invention provides a device for preventing foot drop. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the prior art, the present invention provides a foot drop prevention device, which solves the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a foot drop prevention device, comprising a base plate and a foot sleeve, wherein the foot sleeve is located above the base plate, and support side plates are fixedly connected to both sides of the base plate. Two foot sleeves are provided, and a strap is fixedly connected to the upper part of each foot sleeve. A water storage bottle is fixedly connected to the inner wall of the support side plate. The sides of the foot sleeve and the base plate that are close to each other are made of elastic rubber material. A pressure adjustment mechanism is installed on the base plate and the foot sleeve, and an ankle dorsiflexion induction mechanism is installed on the support side plate.

[0010] The pressure regulating mechanism includes lugs symmetrically fixedly connected to the upper part of the base plate. A rotating shaft is rotatably connected to the inner wall of each lug. Clamping sleeves are fixedly connected to the outer walls of both foot sleeves near the lugs. A long shaft is rotatably connected uniformly inside the base plate. The outer wall of the long shaft is connected via a belt drive. Massage cams are uniformly fixedly connected to the outer wall of the long shaft located below the foot sleeves. Support plates are provided on both side walls of the foot sleeves. Pins are rotatably connected to each support plate. A driven gear is fixedly connected to the outer wall of each pin. A main gear is intermittently and equidistantly fixed to the outer wall of the long shaft. A torsion spring is sleeved on the outer wall of each pin. One end of the torsion spring is fixedly connected to the support plate, and the other end is fixedly connected to the outer wall of the pin. The same elastic strap is sleeved on the outer walls of the pins on both sides of the foot sleeves. Limiting baffles are uniformly fixedly connected to the inner wall of the base plate. A vertical rack meshes with the outer wall of the main gear.

[0011] Preferably, the pin is fitted to the upper part of the limiting baffle, the clamping sleeve is made of elastic material, the clamping sleeve is snapped onto the outer wall of the rotating shaft, the two side walls of the foot sleeve are provided with limiting grooves, a U-shaped magnetic sleeve is slidably connected in the limiting groove, the U-shaped magnetic sleeve is snapped onto the outer wall of the support plate, an auxiliary spring is fixedly connected in the limiting groove, the auxiliary spring is fixedly connected to the outer wall of the U-shaped magnetic sleeve, a magnetic block is fixedly connected on the base plate, limiting plates are symmetrically fixedly connected on the base plate, a limiting post is slidably connected through one side of the limiting plate, and a mounting spring is sleeved on the outer wall of the limiting post.

[0012] Preferably, the ankle dorsiflexion induction mechanism includes a mounting block fixedly connected to the side wall of the support side plate near the right side. A sliding column is slidably connected through the mounting block. A support spring is sleeved on the outer wall of the sliding column. A rotating sleeve is rotatably connected to the side wall of the support side plate near the right side. A sliding column is slidably connected inside the rotating sleeve. A rotating handle is fixedly connected to the end of the sliding column away from the rotating sleeve. An L-shaped insert is fixedly connected to the outer wall of the sliding column. The lower end of the sliding column is fixedly connected to a vertical rack.

[0013] Preferably, a limiting spring is fixedly connected to the inner cavity of the rotating sleeve, one end of the limiting spring is fixedly connected to the sliding column, a spiral protrusion is fixedly connected to the outer wall of the rotating sleeve, and insertion holes are evenly opened on the side wall near the right side support plate.

[0014] Preferably, the L-shaped insert is inserted into the insertion hole, the outer wall of the sliding column is fixedly connected to a slanted groove frame, a sliding shaft is slidably connected inside the slanted groove frame, and a movable crossbar is slidably connected through the side wall near the right side support plate.

[0015] Preferably, the sliding shaft is rotatably connected to the moving crossbar, and a pull column is slidably connected to the upper part of the moving crossbar. A return spring is sleeved on the outer wall of the pull column. One end of the return spring is fixedly connected to the lower part of the moving crossbar, and the other end of the return spring is fixedly connected to the outer wall of the pull column.

[0016] Preferably, a tapered sleeve is fixedly connected to the lower end of the pull column, and the tapered sleeve is made of an elastic material.

[0017] Preferably, a sponge wiping column is inserted into the conical sleeve, and a sleeve is fixedly connected to the water storage bottle, with a sponge water-absorbing block inserted into the sleeve.

[0018] Preferably, the water-absorbing sponge is inserted through the interior of the water storage bottle.

[0019] (III) Beneficial Effects

[0020] The foot drop prevention device provided by this invention has the following beneficial effects:

[0021] By having the user lift their foot and then slowly lower it, the clamping sleeve on the outer wall of the foot sleeve rotates around the pivot. This effectively promotes lower limb muscle contraction and strengthens the dorsiflexion muscles of the foot, thereby alleviating foot drop symptoms. After adapting to the binding force of the elastic band, the distance of the descending squeezing slide can be adjusted by pulling the rotating handle outward and rotating it. This allows the vertical rack to continuously mesh with the main gear, driving the driven gear to rotate, thus continuously winding the two ends of the elastic band, thereby increasing the binding force applied to the instep. This not only enhances the user's exercise intensity but also allows for appropriate adjustment of the foot resistance training according to the actual user's foot drop condition. It avoids using excessive resistance that exceeds the foot muscles' capacity, leading to muscle overload and causing muscle fatigue, strain, or other injuries, while also avoiding insufficient training effect due to too little resistance, achieving the goal of flexible adjustment.

[0022] In addition, after completing the exercise to prevent foot drop, you can hold the rotating handle again and pull it outward to insert the L-shaped pin into the hole in the middle vertical line at the top of the support side plate. At this time, the sliding pin is no longer compressed, and the support spring will return to its original position and pull the vertical rack upward to engage the main gear and rotate in the opposite direction to engage the driven gear. At this time, the torsion spring on the outer wall of the pin will also help the pin return to its original position and loosen the tightened elastic strap, thus achieving the effect of quick return of the elastic strap. No additional manual operation steps are required, which is convenient for the user to use next time. The torsion spring can also limit the pin and the elastic strap to prevent the elastic strap from loosening.

[0023] Since the sides of the foot cover and the base plate that are close to each other are made of elastic rubber, when the protruding part of the massage cam rotates upward, it will lift the sides of the foot cover and the base plate that are close to each other, so that the bottom of the foot cover can be squeezed and massaged. The preheating action of foot massage can prevent foot sports injuries, such as sprains and plantar fasciitis, improve the pressure resistance and stability of the feet, and reduce the risk of injury.

[0024] By loosening the pull post, the reset spring pulls the pull post and the sponge wiping post downwards, allowing the wet sponge wiping post to reciprocate against the side wall of the user's lower leg. This wiping motion stimulates skin receptors, affecting the nervous system and muscle function, thereby inducing dorsiflexion of the ankle. This helps the patient to voluntarily perform foot dorsiflexion movements, activating sensory nerve endings around the damaged nerves. Through nerve transmission, this triggers a muscle response, helping to form new reflex pathways around the damaged area and activating residual nerve pathways, thus promoting the rehabilitation and functional recovery of the neuromuscular system in the damaged area. This achieves the purpose of muscle contraction and movement. For foot drop, this wiping stimulation method can help prevent foot drop and improve gait stability and walking ability by enhancing nerve conduction and muscle control in the foot muscles.

[0025] By manually pulling the limiting post off the support plate, the entire mechanism along with the foot cover on the support plate can be easily removed from the base plate. This allows the user to switch between wearing the foot cover and the strap. The elastic strap can still loosely bind and fit the user's instep, providing support and stability, helping to restore and maintain the normal protrusion of the foot, and effectively correcting foot drop. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 For the present invention Figure 1 Enlarged structural diagram of region A in the middle;

[0028] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0029] Figure 4 For the present invention Figure 3 Enlarged structural diagram of region B in the middle;

[0030] Figure 5 This is a schematic diagram of the long shaft and belt mounting structure of the present invention;

[0031] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the substrate of the present invention;

[0032] Figure 7 For the present invention Figure 6 Enlarged structural diagram of region C in the middle;

[0033] Figure 8 For the present invention Figure 6 A magnified structural diagram of region D in the middle;

[0034] Figure 9 This is a schematic diagram of the mounting structure of the long shaft and the massage cam of the present invention;

[0035] Figure 10 This is a schematic diagram of the installation structure of the conical sleeve and the sponge wiping column of the present invention;

[0036] Figure 11 This is a schematic diagram of the mounting structure of the substrate and the limiting plate of the present invention;

[0037] Figure 12 For the present invention Figure 11 A magnified schematic diagram of the E region.

[0038] In the diagram: 1. Base plate; 2. Foot sleeve; 3. Supporting side plate;

[0039] 4. Binding sleeve; 5. Water storage bottle; 61. Lug; 62. Rotating shaft; 63. Clamping sleeve; 64. Long shaft; 65. Belt; 66. Massage cam; 67. Support plate; 68. Pin; 69. Driven gear; 610. Main gear; 611. Torsion spring; 612. Elastic strap; 613. Limiting baffle; 614. Vertical rack; 615. Limiting groove; 616. U-shaped magnetic sleeve; 617. Auxiliary spring; 618. Magnetic block; 619. Limiting plate; 6 20. Limiting post; 71. Mounting block; 72. Sliding post; 73. Support spring; 74. Rotating sleeve; 75. Sliding post; 76. Rotating handle; 77. L-shaped insert post; 78. Limiting spring; 79. Spiral protrusion; 710. Insertion hole; 711. Inclined groove frame; 712. Sliding shaft; 713. Moving crossbar; 714. Pull post; 715. Return spring; 716. Conical sleeve; 717. Sponge wiping post; 718. Sponge water-absorbing block; 719. Sleeve. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] The present invention provides the following technical solution:

[0042] Embodiments of the present invention

[0043] Please see Figure 1 The foot drop prevention device includes a base plate 1 and a foot sleeve 2. The foot sleeve 2 is located above the base plate 1. Support side plates 3 are fixedly connected to both sides of the base plate 1. There are two foot sleeves 2. The upper part of each foot sleeve 2 is fixedly connected to a strap 4. A water storage bottle 5 is fixedly connected to the inner wall of the support side plate 3. The sides of the foot sleeve 2 and the base plate 1 that are close to each other are made of elastic rubber. A pressure adjustment mechanism is installed on the base plate 1 and the foot sleeve 2. A mechanism for inducing ankle dorsiflexion is installed on the support side plate 3.

[0044] Please see Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 8 , Figure 11 , Figure 12 The pressure adjustment mechanism includes lugs 61 symmetrically fixedly connected to the upper part of the base plate 1. A rotating shaft 62 is rotatably connected to the inner wall of the lugs 61. Clamping sleeves 63 are fixedly connected to the outer walls of the two foot sleeves 2 near the lugs 61. A long shaft 64 is rotatably connected uniformly inside the base plate 1. The outer wall of the long shaft 64 is driven by a belt 65. Massage cams 66 are uniformly fixedly connected to the outer wall of the long shaft 64 located below the foot sleeves 2. Support plates 67 are provided on both side walls of the foot sleeves 2. Pins 68 are rotatably connected to the support plates 67. A driven gear 69 is fixedly connected to the outer wall of the pin 68, and a main gear 610 is fixedly connected to the outer wall of the long shaft 64 at intervals. A torsion spring 611 is sleeved on the outer wall of the pin 68. One end of the torsion spring 611 is fixedly connected to the support plate 67, and the other end of the torsion spring 611 is fixedly connected to the outer wall of the pin 68. The same elastic strap 612 is sleeved on the outer walls of the pins 68 on both sides of the foot sleeve 2. Limiting baffles 613 are evenly fixedly connected to the inner wall of the base plate 1. A vertical rack 614 meshes with the outer wall of the main gear 610. Since the sides of the foot sleeve 2 and the base plate 1 that are close to each other are made of rubber, when the massage cam 66 rotates to massage, the protruding part of the massage cam 66 can better penetrate the partition at the bottom of the foot sleeve 2, thereby achieving a better massage effect.

[0045] Please see Figure 5 , Figure 6, Figure 8 , Figure 11 , Figure 12 The pin 68 is attached to the upper part of the limiting baffle 613. The clamping sleeve 63 is made of elastic material and is snapped onto the outer wall of the rotating shaft 62. Limiting grooves 615 are opened on both sides of the foot sleeve 2. A U-shaped magnetic sleeve 616 is slidably connected in the limiting groove 615. The U-shaped magnetic sleeve 616 is snapped onto the outer wall of the support plate 67. An auxiliary spring 617 is fixedly connected in the limiting groove 615. The auxiliary spring 617 is fixedly connected to the outer wall of the U-shaped magnetic sleeve 616. A magnetic block 618 is fixedly connected on the base plate 1. A limiting plate 619 is symmetrically fixedly connected on the base plate 1. A limiting post 620 is slidably connected through one side of the limiting plate 619. A mounting spring is sleeved on the outer wall of the limiting post 620. The U-shaped magnetic sleeve 616 is made of elastic material, and the U-shaped magnetic sleeve 616 and the magnetic block 618 are opposite magnetic poles. The lower part of the support plate 67 is set as an inclined surface corresponding to the position of the limiting post 620.

[0046] Please see Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 10 The ankle dorsiflexion induction mechanism includes a mounting block 71 fixedly connected to the side wall of the right support side plate 3. A sliding column 72 is slidably connected through the mounting block 71. A support spring 73 is sleeved on the outer wall of the sliding column 72. One end of the support spring 73 is fixedly connected to the lower part of the mounting block 71, and the other end of the support spring 73 is fixedly connected to the outer wall of the sliding column 72. A rotating sleeve 74 is rotatably connected to the side wall of the right support side plate 3. A sliding column 75 is slidably connected inside the rotating sleeve 74. A rotating handle 76 is fixedly connected to the end of the sliding column 75 away from the rotating sleeve 74. An L-shaped insert 77 is fixedly connected to the outer wall of the sliding column 75. The lower end of the sliding column 72 is fixedly connected to the vertical rack 614.

[0047] A limiting spring 78 is fixedly connected to the inner cavity of the rotating sleeve 74. One end of the limiting spring 78 is fixedly connected to the sliding column 75. A spiral protrusion 79 is fixedly connected to the outer wall of the rotating sleeve 74. Insertion holes 710 are evenly provided on the side wall near the right support side plate 3. The spiral protrusion 79 is set as a spiral block with a progressively increasing profile, used to adjust the length of the downward movement of the extrusion sliding column 72.

[0048] L-shaped insert 77 is inserted into insert hole 710. A slanted groove frame 711 is fixedly connected to the outer wall of slide column 72. A sliding shaft 712 is slidably connected inside the slanted groove frame 711. A moving crossbar 713 is slidably connected through the side wall near the right support side plate 3. The sliding shaft 712 is rotatably connected to the moving crossbar 713. A pull column 714 is slidably connected through the upper part of the moving crossbar 713. A return spring 715 is sleeved on the outer wall of the pull column 714. One end of the return spring 715 is fixedly connected to the lower part of the moving crossbar 713, and the other end is fixedly connected to the outer wall of the pull column 714. The slanted groove frame 711 consists of a vertical groove and a slanted groove. Therefore, when slide column 72 drives slanted groove frame 711 to descend, it first squeezes the sliding shaft 712, causing the moving crossbar 713 to slide laterally. When the vertical groove part of slanted groove frame 711 contacts the sliding shaft 712, it will no longer push the moving crossbar 713 to slide laterally, keeping the position of the moving crossbar 713 unchanged.

[0049] A conical sleeve 716, made of elastic material, is fixedly connected to the lower end of the pull column 714. A sponge rubbing column 717 is inserted into the conical sleeve 716. A sleeve 719 is fixedly connected to the water bottle 5, and a sponge absorbent block 718 is inserted into the sleeve 719, penetrating the interior of the water bottle 5. The sponge rubbing column 717 is embedded inside and in contact with the sponge absorbent block 718. The sponge absorbent block 718 absorbs water from the water bottle 5, keeping the sponge rubbing column 717 moist, which helps to better stimulate the user's movement response.

[0050] Working process and working principle:

[0051] Initial state: The clamping sleeve 63 on the outer wall of the foot sleeve 2 is engaged with the outer wall of the rotating shaft 62, and the driven gear 69 meshes with the main gear 610. The foot sleeve 2 is attached to the upper part of the base plate 1 and there is no connection. Since the elastic strap 612 is wrapped around the outer wall of the pin 68 on both sides of the foot sleeve 2, the middle part of the elastic strap 612 is located above the foot sleeve 2.

[0052] In use, the user first passes both legs through the strap 4, then places both feet inside the two foot sleeves 2. The user can then perform exercises to raise their instep. Since the elastic strap 612 is at its loosest state at this time, it does not apply pressure to the instep, only providing a restraining effect. When pressure needs to be applied to the instep, the user simply holds the rotating handle 76 and pulls it away from the supporting side plate 3. This will cause the sliding column 75 to slide within the rotating sleeve 74 and stretch the limiting spring 78. Because the L-shaped insert 77 is fixed to the outer wall of the sliding column 75, When the sliding post 75 moves, it simultaneously drives the L-shaped insert 77 away from the original insertion hole 710. At this time, the rotating handle 76 can be turned clockwise downwards, which will drive the sliding post 75, the rotating sleeve 74, and the spiral protrusion 79 to rotate clockwise downwards simultaneously. This causes the outer wall of the spiral protrusion 79 to press against the sliding post 72, causing the sliding post 72 to slide downwards on the mounting block 71 and stretching the support spring 73 on its outer wall. When the sliding post 72 moves downwards, it will simultaneously drive the vertical rack 614 to move downwards, causing the vertical rack 614 to mesh with the main gear 610 and rotate. Gears 610 are fixedly connected to the outer wall of the long shaft 64, and the long shaft 64 has several gears connected by belts 65. Therefore, when one of the main gears 610 rotates, multiple long shafts 64 and the main gear 610 will rotate simultaneously. The meshing of the main gear 610 with the driven gear 69 will cause the pin 68 fixed to it to rotate, thereby driving the torsion spring 611 on its outer wall to contract. Since the outer wall of the foot sleeve 2 has two sets of pins 68 symmetrically arranged and elastic straps 612 are wound around them, when the two pins 68 rotate, they will simultaneously wind up both ends of the elastic straps 612. This allows the elastic strap 612 to fit snugly against the upper part of the instep. After the initial adjustment, the rotating handle 76 can be loosened. The return of the support spring 73 will then pull the sliding post 75 and the rotating handle 76 back to their original positions, causing the L-shaped insertion post 77 to approach the support side plate 3 and insert into the corresponding insertion hole 710. This secures the adjusted elastic strap 612. The user can then lift and slowly lower their foot, causing the clamping sleeve 63 on the outer wall of the foot sleeve 2 to rotate around the pivot 62. This effectively promotes lower limb muscle contraction and strengthens the dorsiflexion muscles of the foot.This alleviates foot drop symptoms. After adapting to the binding force of the elastic band 612, the distance the sliding column 72 descends can be adjusted again by pulling outwards and rotating the handle 76. This allows the vertical rack 614 to continuously mesh with the main gear 610, driving the driven gear 69 to rotate, thus continuously winding up both ends of the elastic band 612. This increases the binding force applied to the instep, not only enhancing the user's training intensity but also allowing for appropriate adjustment of the instep resistance training according to the user's specific foot drop condition. This avoids using excessive resistance that exceeds the foot muscles' capacity, leading to muscle fatigue, strains, or other injuries due to overload, while also preventing insufficient training effect from too light resistance, achieving a flexible adjustment mechanism.

[0053] Furthermore, since the foot sleeve 2 is initially placed on the substrate 1, the U-shaped magnetic sleeves 616 on both sides will be at the same horizontal plane as the magnetic block 618, as can be seen in the following reference. Figure 12 When the U-shaped magnetic sleeve 616 drives the support plate 67, which is engaged with it, to descend synchronously, the inclined surface at the bottom of the support plate 67, when it is in contact with the upper part of the substrate 1, will press against the rounded corner limiting post 620 and stretch the mounting spring on its outer wall. The support plate 67 will be embedded into the groove where the main gear 610 is located inside the substrate 1, so that the driven gear 69 and the main gear 610 mesh. When the hole on the outer wall of the support plate 67 is flush with the limiting post 620, the limiting post 620 is no longer compressed. At this time, the mounting spring will return to its original position and push the limiting post 620 to insert into the support plate 616. Inside plate 67, it serves to limit the insertion of support plate 67. Since the U-shaped magnetic sleeve 616 and the magnetic block 618 have opposite magnetic poles, the magnetic block 618 will attract the U-shaped magnetic sleeve 616 to slide in the limiting groove 615 and compress the auxiliary spring 617, so that the U-shaped magnetic sleeve 616 is disengaged from the support plate 67. This achieves the purpose of installing support plate 67 and base plate 1, preventing the support plate 67 from moving synchronously when the user slowly hooks up the instep, and ensuring the effectiveness of the elastic strap 612 on support plate 67 as a restraining resistance.

[0054] In addition, after completing the exercise to prevent foot drop, you can hold the rotating handle 76 again and pull it outward to insert the L-shaped insert 77 into the insertion hole 710 on the uppermost vertical line of the support side plate 3. At this time, the sliding column 72 is no longer compressed, and the support spring 73 will return to its original position and pull the vertical rack 614 upward to engage the main gear 610 to rotate in the opposite direction and engage the driven gear 69. At this time, the torsion spring 611 on the outer wall of the pin 68 will also help the pin 68 return to its original position and loosen the tightened elastic strap 612, thus achieving the effect of quick return of the elastic strap 612. No additional manual operation steps are required, which is convenient for the user to use next time. The torsion spring 611 can also limit the pin 68 and the elastic strap 612 to prevent the elastic strap 612 from loosening.

[0055] Furthermore, since several long shafts 64 are connected by a belt 65, when one long shaft 64 rotates, multiple long shafts 64 and the massage cam 66 located below the foot cover will rotate synchronously. Since the sides of the foot cover 2 and the base plate 1 that are close to each other are made of elastic rubber, when the protruding part of the massage cam 66 rotates upward, it will push up the sides of the foot cover 2 and the base plate 1 that are close to each other, thereby squeezing and massaging the bottom of the foot cover 2. This preheating action for foot massage can prevent foot injuries such as sprains and plantar fasciitis, improve the foot's pressure resistance and stability, and reduce the risk of injury.

[0056] It should be noted that during the downward movement of the sliding column 72, the inclined groove frame 711 fixed to its outer wall will move downward simultaneously, causing the inclined groove frame 711 to squeeze the sliding shaft 712 and move it along the inclined groove of the inclined groove frame 711. This, in turn, drives the moving crossbar 713 connected to it to move laterally towards the foot sleeve 2, causing the pull column 714 to move laterally towards the foot sleeve 2. This will cause the sponge rubbing column 717 in the conical sleeve 716 at the lower end of the pull column 714 to move closer to the foot sleeve 2. Since the conical sleeve 716 and the sponge rubbing column 717 are inclined, the moved sponge rubbing column 717 will fit against the side wall of the user's calf afterward. Then, the user can pull the top of the pull column 714 and pull it upward, causing the pull column 714 to move the sponge rubbing column 717 upward and compress the return spring 715. After that, the pull column 714 is released, at which point the return spring 715 returns to its original position. This will pull the pull column 714 and the sponge rubbing column 717 downwards, allowing the wet sponge rubbing column 717 to reciprocate and rub the side wall of the user's lower leg. The rubbing motion stimulates skin receptors, affecting the nervous system and muscle function, thereby inducing dorsiflexion of the user's ankle. This helps the patient to voluntarily perform dorsiflexion movements, which can activate sensory nerve endings around the damaged nerves. Through nerve transmission, it can cause muscle responses, helping to form new reflex pathways around the damaged area and activating residual nerve pathways, thus promoting the rehabilitation and functional recovery of the neuromuscular system in the damaged area, achieving the purpose of muscle contraction and movement. For foot drop, this rubbing stimulation method can help prevent foot drop and improve gait stability and walking ability by enhancing nerve conduction and muscle control of the foot muscles.

[0057] Furthermore, when the sponge wiping column 717 is not in use or after use, the support spring 73 on the outer wall of the sliding column 72 will return to its original position and pull the sliding column 72 upward. This causes the inclined groove frame 711 to press the sliding shaft 712 again, which in turn moves the moving crossbar 713 to return to its original position. This allows the sponge wiping column 717 on the pull column 714 to return to its original position and fit into the sponge absorbent block 718 inside the sleeve 719. This keeps the sponge wiping column 717 moist and eliminates the need for manual operation of the sponge wiping column 717 for subsequent use. After long-term use, the sponge wiping column 717 can be removed from the conical clip 716 and replaced with a new one.

[0058] Furthermore, when it is necessary to switch to wearing foot sleeves 2 to correct foot drop, both foot sleeves 2 can be manually pulled upwards to disengage the clamping sleeves 63 on the outer wall of the foot sleeves 2 from the outer wall of the pivot 62. Then the foot sleeves 2 can be separated. At this time, the U-shaped magnetic clip 616 loses the attraction of the magnet 618 and resets under the rebound force of the auxiliary spring 617. At this time, the U-shaped magnetic clip 616 will be snapped back onto the outer wall of the support plate 67. Then, the limiting post 620 can be manually pulled to disengage from the support plate 67, so that the foot sleeves 2 and the mechanism on the support plate 67 can be removed from the base plate 1. It is possible to switch to the user wearing foot sleeves 2 and straps 4. The elastic straps 612 can still loosely bind and fit the user's instep. Wearing them can provide support and stability, which helps to restore and maintain the normal protrusion of the foot and effectively correct foot drop.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing foot drop, comprising a base plate (1) and a foot sleeve (2), characterized in that: The foot sleeve (2) is located above the base plate (1). Support side plates (3) are fixedly connected to both sides of the base plate (1). There are two foot sleeves (2). The upper part of the foot sleeve (2) is fixedly connected to a strap (4). A water storage bottle (5) is fixedly connected to the inner wall of the support side plate (3). The side of the foot sleeve (2) and the base plate (1) that are close to each other are made of elastic rubber. Pressure adjustment mechanisms are installed on the base plate (1) and the foot sleeve (2). An ankle dorsiflexion induction mechanism is installed on the support side plate (3). The pressure regulating mechanism includes lugs (61) symmetrically fixedly connected to the upper part of the base plate (1). A rotating shaft (62) is rotatably connected to the inner wall of the lugs (61). Clamping sleeves (63) are fixedly connected to the outer walls of the two foot sleeves (2) near the lugs (61). A long shaft (64) is rotatably connected evenly inside the base plate (1). The outer wall of the long shaft (64) is driven by a belt (65). Massage cams (66) are evenly fixedly connected to the outer wall of the long shaft (64) located below the foot sleeves (2). Support plates (67) are provided on both side walls of the foot sleeves (2). Pins (68) are rotatably connected to the support plates (67). The outer wall of the pin (68) is fixedly connected to a driven gear (69), the outer wall of the long shaft (64) is fixedly connected to a main gear (610) at intervals and equal distances, the outer wall of the pin (68) is fitted with a torsion spring (611), one end of the torsion spring (611) is fixedly connected to the support plate (67), the other end of the torsion spring (611) is fixedly connected to the outer wall of the pin (68), the outer walls of the pins (68) on both sides of the foot sleeve (2) are fitted with the same elastic strap (612), the inner wall of the base plate (1) is uniformly fixedly connected to a limit baffle (613), and the outer wall of the main gear (610) is meshed with a vertical rack (614). The ankle dorsiflexion induction mechanism includes a mounting block (71) fixedly connected to the side wall of the support side plate (3) near the right side. A sliding column (72) is slidably connected through the mounting block (71). A support spring (73) is sleeved on the outer wall of the sliding column (72). A rotating sleeve (74) is rotatably connected to the side wall of the support side plate (3) near the right side. A sliding column (75) is slidably connected inside the rotating sleeve (74). A rotating handle (76) is fixedly connected to one end of the sliding column (75) away from the rotating sleeve (74). An L-shaped insert (77) is fixedly connected to the outer wall of the sliding column (75). The lower end of the sliding column (72) is fixedly connected to a vertical rack (614). The inner cavity of the rotating sleeve (74) is fixedly connected to a limiting spring (78), one end of the limiting spring (78) is fixedly connected to a sliding column (75), the outer wall of the rotating sleeve (74) is fixedly connected to a spiral protrusion (79), and the side wall near the right side of the supporting side plate (3) is evenly provided with insertion holes (710). The L-shaped insert (77) is inserted into the insertion hole (710). The outer wall of the sliding column (72) is fixedly connected to the inclined groove frame (711). The inclined groove frame (711) is slidably connected to the sliding shaft (712). The side wall near the right side support plate (3) is slidably connected to the moving crossbar (713). The sliding shaft (712) is rotatably connected to the moving crossbar (713). The upper part of the moving crossbar (713) is slidably connected to the pull column (714). The outer wall of the pull column (714) is fitted with a return spring (715). One end of the return spring (715) is fixedly connected to the lower part of the moving crossbar (713), and the other end of the return spring (715) is fixedly connected to the outer wall of the pull column (714). The lower end of the pull column (714) is fixedly connected to a conical sleeve (716), which is made of an elastic material; A sponge wiping column (717) is inserted into the conical sleeve (716), and a sleeve (719) is fixedly connected to the water storage bottle (5). A sponge water-absorbing block (718) is inserted into the sleeve (719).

2. The foot drop prevention device according to claim 1, characterized in that: The pin (68) is attached to the upper part of the limiting baffle (613). The clamping sleeve (63) is made of elastic material and is snapped onto the outer wall of the rotating shaft (62). Limiting grooves (615) are opened on both sides of the foot sleeve (2). A U-shaped magnetic sleeve (616) is slidably connected in the limiting groove (615). The U-shaped magnetic sleeve (616) is snapped onto the outer wall of the support plate (67). An auxiliary spring (617) is fixedly connected in the limiting groove (615). The auxiliary spring (617) is fixedly connected to the outer wall of the U-shaped magnetic sleeve (616). A magnetic block (618) is fixedly connected on the base plate (1). A limiting plate (619) is symmetrically fixedly connected on the base plate (1). A limiting post (620) is slidably connected through one side of the limiting plate (619). An installation spring is sleeved on the outer wall of the limiting post (620).

3. The foot drop prevention device according to claim 2, characterized in that: The sponge absorbent block (718) is inserted through the interior of the water storage bottle (5).

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