Orthotic device for preventing inversion and preventing drop foot based on posture control

Abstract

The present application belongs to the technical field of correction devices, and particularly relates to a correction device for preventing ankle-foot varus and sagging based on posture control, which comprises a correction foot support, a vertical plate and a horizontal plate arranged on the front side and the lower side of the correction foot support respectively, the horizontal plate and the vertical plate being perpendicular to each other and fixed to each other, a rotating plate arranged on the horizontal plate, the correction foot support being perpendicular to the horizontal plate, a fixing mechanism arranged on the vertical plate and used for fixing the correction foot support and the vertical plate, a power mechanism arranged in the vertical plate and used for providing power for the rotation of the rotating plate, a shortening mechanism arranged on the rotating plate and used for keeping a stable supporting state after the correction foot support is rotated, and a transmission mechanism arranged on the vertical plate and used for providing power for the movement of the shortening mechanism. The device can automatically support the correction foot support when the correction foot support is inclined, and can stably support the correction foot support within a certain range regardless of the inclination of the correction foot support.

Description

Technical Field

[0001] This invention belongs to the technical field of orthopedic devices, specifically relating to an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation. Background Technology

[0002] In hospitals, orthopedic devices are used during treatment to inhibit ankle-foot inversion or prevent ankle-foot drop. A common orthopedic device is the orthopedic foot brace, which can limit the position of the foot and, by fixing it to a horizontal or vertical board, can make the foot perpendicular or inclined to the bed for correction as needed.

[0003] When the corrective footrest is perpendicular to the hospital bed, the bottom of the footrest abuts against the horizontal board, thus providing good support. However, when the footrest is tilted, the upper part of the footrest is suspended in the air. On the one hand, this will exert a pulling force on the fixing point, which may easily cause the connection to loosen. On the other hand, if the upper part of the footrest is suspended in the air for a long time, the vertical component of gravity will affect the comfort of use. Therefore, how to provide support for the corrective footrest when it is tilted has become a problem that needs to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide an orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation includes an orthopedic foot support with a vertical plate on its front side and a horizontal plate on its lower side, the horizontal plate and the vertical plate being perpendicular to each other and fixed to each other. A rotating plate is provided on the horizontal plate, and the orthopedic foot support is perpendicular to the horizontal plate. A fixing mechanism is provided on the vertical plate for fixing the orthopedic foot support to the vertical plate. A power mechanism is provided inside the vertical plate for providing power for the rotation of the rotating plate. A shortening mechanism is provided on the rotating plate for maintaining a stable support state after the orthopedic foot support rotates. A transmission mechanism is provided on the vertical plate for providing power for the movement of the shortening mechanism. An angle changing mechanism is fitted to the side wall of the orthopedic foot support and cooperates with the shortening mechanism to adjust the angle according to different angles of the orthopedic foot support.

[0006] As a preferred embodiment of the corrective device for ankle and foot inversion inhibition and drop prevention based on posture regulation of the present invention, the fixing mechanism includes a threaded hole provided on the corrective foot support, a bolt being threadedly connected in the threaded hole, an opening with a diameter larger than that of the bolt on the vertical plate, an extrusion groove being provided on the opening, an extrusion plate being fixedly connected to the bolt, and a semi-circular strip being fixedly connected to the extrusion plate.

[0007] As a preferred embodiment of the corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation of the present invention, the vertical plate is provided with a guide member that guides the foot support when the inclination angle between the corrective foot support and the horizontal plate changes. The guide includes two arc-shaped openings symmetrically arranged on the vertical plate. Each arc-shaped opening contains an arc-shaped block, which can slide relative to the inner wall of the arc-shaped opening. The orthopedic foot support has a slot, and a limiting post that cooperates with the slot is fixedly connected to the arc-shaped block. An elastic ring is embedded on the side wall of the limiting post.

[0008] As a preferred embodiment of the corrective device for ankle-foot inversion inhibition and drop prevention based on posture regulation of the present invention, the power mechanism includes an installation cavity disposed in a vertical plate, a support groove provided on the horizontal plate, a communication port communicating with the support groove on the inner wall of the installation cavity, a drive shaft rotatably connected to the inner wall of the installation cavity, the drive shaft passing through the communication port and fixedly connected to the front side wall of the rotating plate, an L-shaped toothed plate slidably connected in the installation cavity, and a gear meshing with the L-shaped toothed plate fixedly connected to the drive shaft.

[0009] As a preferred embodiment of the corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation of the present invention, the mounting cavity is provided with a pusher that provides power to the toothed plate; The pusher includes an L-shaped cavity disposed within the vertical plate and communicating with the mounting cavity. A transition strip fixed to an L-shaped toothed plate is slidably connected within the L-shaped cavity. A guide groove extending into an arc-shaped opening is provided in the L-shaped cavity. A slide plate fixed to the transition strip is slidably connected within the guide groove. An arc-shaped plate is fixedly connected to the slide plate. The slide plate is elastically connected to the inner wall of the guide groove via a first spring.

[0010] As a preferred embodiment of the corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation of the present invention, the lower end of the arc-shaped plate is provided with an arc edge, and the front end of the arc-shaped block and the rear end of the arc-shaped plate are both provided with mutually cooperating inclined edges.

[0011] As a preferred embodiment of the corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation of the present invention, the shortening mechanism includes a T-shaped groove disposed in a rotating plate, a T-shaped plate being slidably connected in a sealed manner in the T-shaped groove, a vent penetrating the rotating plate being provided on the T-shaped groove near one end of the drive shaft, an installation port being provided on the T-shaped plate, an installation shaft being rotatably connected in the installation port, and an arc-shaped sleeve with an integrated base being fixedly connected to the installation shaft to cooperate with the corrective foot support.

[0012] As a preferred embodiment of the corrective device for ankle-foot inversion inhibition and drop prevention based on posture regulation of the present invention, the transmission mechanism includes an arc-shaped groove disposed on a vertical plate and communicating with an arc-shaped opening. An arc-shaped elastic sealing plug is slidably connected in the arc-shaped groove. An arc-shaped strip is fixedly connected to the elastic sealing plug. A top block that cooperates with the arc-shaped block is fixedly connected to the arc-shaped strip. The elastic sealing plug is elastically connected to the inner wall of the arc-shaped groove through a second spring. An air guide tube is provided on the inner wall of the arc-shaped groove. The end of the air guide tube is connected to the end of the T-shaped groove away from the transmission shaft.

[0013] As a preferred embodiment of the corrective device for ankle-foot inversion inhibition and drop prevention based on posture regulation of the present invention, the tilt changing mechanism includes a top rod fixedly connected in a T-shaped groove. The T-shaped plate has a receiving groove, and an I-shaped block is slidably connected in the receiving groove. The I-shaped block is elastically connected to the inner wall of the receiving groove through a third spring. The I-shaped block has an inclined groove, and a guide ball is slidably connected in the inclined groove. A rigid rope is fixedly connected to the guide ball. The T-shaped plate has a wire groove, and the end of the rigid rope passes through the wire groove and the T-shaped plate and is fixedly connected to the upper side wall of the arc-shaped sleeve. The inner wall of the receiving groove has a transverse groove that cooperates with the guide ball.

[0014] As a preferred embodiment of the corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation of the present invention, a torsion spring is provided on the mounting shaft, and the elastic force of the torsion spring is greater than the frictional resistance between the guide ball and the transverse groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a rotating plate and a power mechanism, when the orthopedic footrest is adjusted to an inclined position, the rotating plate can be automatically rotated in the inclined direction through transmission to support the orthopedic footrest, preventing the upper part of the orthopedic footrest from being suspended in the air, thus ensuring the comfort of use. It also forms a triangular structure between the horizontal plate, the orthopedic footrest, and the rotating plate, which makes the support effect better. At the same time, due to the support, the tensile force at the connection is reduced, ensuring the stability of the connection between the vertical plate and the orthopedic footrest.

[0016] 2. By setting up a shortening mechanism and a transmission mechanism, as the tilt angle between the corrective foot support and the horizontal plate increases, the total length of the rotating plate and the T-shaped plate can be shortened adaptively through the transmission, ensuring that the T-shaped plate and the corrective foot support will not get stuck during the tilting process of the corrective foot support.

[0017] 3. By setting up an angle-changing mechanism, the curved sleeve can increase the support contact area during the correction of footrest tilt. As the tilt angle of the footrest increases, the curved sleeve can adaptively change the tilt angle to maintain a large area of ​​contact between the curved sleeve and the footrest, further increasing the support effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation. Figure 2 This is a schematic diagram of the external structure of the rotating plate in Example 1 of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation. Figure 3 A schematic diagram of the external structure of the orthopedic foot brace for an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation. Figure 4 A schematic diagram of the first cross-sectional structure of the vertical plate of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A; Figure 6 A schematic diagram of the second cross-sectional structure of the vertical plate of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation; Figure 7 A schematic diagram of the external structure of the arc-shaped block of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation; Figure 8 This is a schematic diagram of the external structure of the rotating plate in Example 2 of an orthopedic device for inhibiting and preventing ankle and foot drop based on posture regulation. Figure 9 A schematic cross-sectional view of the rotating plate of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation. Figure 10 A schematic diagram of the first cross-sectional structure of the T-plate of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation; Figure 11 This is a schematic diagram of the second cross-sectional structure of the T-plate of an orthopedic device for inhibiting ankle and foot inversion and preventing foot drop based on posture regulation.

[0019] In the diagram: 1. Orthopedic foot support; 2. Vertical plate; 3. Horizontal plate; 4. Rotating plate; 5. Fixing mechanism; 51. Threaded hole; 52. Bolt; 53. Extrusion groove; 54. Extrusion disc; 55. Semi-circular strip; 56. Guide component; 561. Arc-shaped opening; 562. Arc-shaped block; 563. Slot; 564. Limiting post; 565. Elastic ring; 6. Power mechanism; 61. Mounting cavity; 62. Support groove; 63. Drive shaft; 64. L-shaped toothed plate; 65. Gear; 66. Pushing component; 661. L-shaped cavity; 662. Adapter strip; 663. Guide groove; 664. Slide plate 665. Arc plate; 666. First spring; 67. Arc edge; 68. Bevel; 7. Shortening mechanism; 71. T-slot; 72. T-plate; 73. Vent; 74. Mounting port; 75. Arc sleeve; 8. Transmission mechanism; 81. Arc groove; 82. Elastic sealing plug; 83. Arc strip; 84. Top block; 85. Second spring; 86. Air guide pipe; 9. Inclined angle changing mechanism; 91. Top rod; 92. Receiving groove; 93. I-shaped block; 94. Third spring; 95. Inclined groove; 96. Guide ball; 97. Rigid rope; 98. Horizontal groove; 99. Torsion spring. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0021] Reference Figure 1 - Figure 9 This is the first embodiment of the present invention. This embodiment provides an orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture control. It achieves the effect of automatically supporting the orthopedic foot support 1 when it is tilted. It includes an orthopedic foot support 1, with a vertical plate 2 and a horizontal plate 3 on its front and lower sides, respectively. The horizontal plate 3 and the vertical plate 2 are perpendicular to each other and fixed to each other. A rotating plate 4 is provided on the horizontal plate 3, and the orthopedic foot support 1 is perpendicular to the horizontal plate 3. A fixing mechanism 5 is provided on the vertical plate 2 and is used to fix the orthopedic foot support 1 and the vertical plate 2. A power mechanism 6 is provided inside the vertical plate 2 and provides power for the rotation of the rotating plate 4. A shortening mechanism 7 is provided on the rotating plate 4 and maintains a stable support state after the orthopedic foot support 1 rotates. A transmission mechanism 8 is provided on the vertical plate 2 and provides power for the movement of the shortening mechanism 7. An inclination angle changing mechanism 9 is attached to the side wall of the orthopedic foot support 1 and cooperates with the shortening mechanism 7 to adjust the inclination angle according to the different angles of the orthopedic foot support 1.

[0022] The corrective foot support 1 has a contact layer that adheres to the skin. The contact layer is made of medical-grade, skin-friendly, and soft fabric. The corrective foot support 1 is the core functional layer, which is composed of porous silicone or foam pressure ulcer dressing. A sensor receiving cavity (a groove or hole molded or machined in the dressing for precise sensor fixation) can also be set on the side wall of the corrective foot support 1. A flexible thin-film pressure sensor (such as FSR, with its sensing surface facing the contact layer) is set in the sensor receiving cavity. A support base plate is also set (to provide overall shape support for the pad and protect the sensor). A wire interface is also set (to connect the sensor to the external circuit). This realizes an integrated embedded structure of the sensor and the pressure ulcer dressing, rather than simple pasting, ensuring accurate pressure sensing without adding extra protrusions. The above is the prior art and will not be described in detail here.

[0023] Furthermore, the fixing mechanism 5 includes a threaded hole 51 on the orthopedic foot support 1, with a bolt 52 threadedly connected to the threaded hole 51. The vertical plate 2 has an opening with a diameter larger than that of the bolt 52, and a compression groove 53 is provided on the opening. A compression plate 54 is fixedly connected to the bolt 52, and a semi-circular strip 55 is fixedly connected to the compression plate 54. The vertical plate 2 is provided with a guide 56 for guiding the orthopedic foot support 1 when the inclination angle between it and the horizontal plate 3 changes. The guide 56 includes two arc-shaped openings 561 symmetrically arranged on the vertical plate 2. Each arc-shaped opening 561 has an arc-shaped block 562. The arc-shaped block 562 can slide relative to the inner wall of the arc-shaped opening 561. The orthopedic foot support 1 has a slot 563. A limiting post 564 that cooperates with the slot 563 is fixedly connected to the arc-shaped block 562. An elastic ring 565 is embedded on the side wall of the limiting post 564.

[0024] When the bolt 52 moves backward, it drives the pressing disc 54 to move backward, causing the vertical plate 2 to press against the front side wall of the orthopedic foot support 1, thus limiting the position between the vertical plate 2 and the orthopedic foot support. The opening is larger than the diameter of the bolt 52 to prevent jamming between the vertical plate 2 or the orthopedic foot support 1 and the vertical plate 2 when they rotate. The semi-circular strip 55 facilitates the direct rotation of the bolt 52. The elastic ring 565 prevents the limiting post 564 from automatically separating from the slot 563 after it is inserted into the slot 563. The rear end of the elastic ring 565 is curved, so that the limiting post 564 will not get stuck when it is inserted.

[0025] Preferably, the power mechanism 6 includes a mounting cavity 61 disposed within the vertical plate 2, a support groove 62 provided on the horizontal plate 3, a communication port on the inner wall of the mounting cavity 61 communicating with the support groove 62, a drive shaft 63 rotatably connected to the inner wall of the mounting cavity 61, the drive shaft 63 passing through the communication port and fixedly connected to the front side wall of the rotating plate 4, an L-shaped toothed plate 64 slidably connected within the mounting cavity 61, and a gear 65 meshing with the L-shaped toothed plate 64 fixedly connected to the drive shaft 63; a pusher 66 providing power to the toothed plate is provided within the mounting cavity 61; the pusher 66 includes components disposed within the vertical plate 2 and connected to the mounting cavity. The L-shaped cavity 661 is connected to the L-shaped cavity 661. A transition strip 662 fixed to the L-shaped toothed plate 64 is slidably connected inside the L-shaped cavity 661. A guide groove 663 extending into the arc-shaped opening 561 is connected to the L-shaped cavity 661. A slide plate 664 fixed to the transition strip 662 is slidably connected inside the guide groove 663. An arc-shaped plate 665 is fixedly connected to the slide plate 664. The slide plate 664 is elastically connected to the inner wall of the guide groove 663 by a first spring 666. The lower end of the arc-shaped plate 665 is provided with an arc edge 67. The front end of the arc-shaped block 562 and the rear end of the arc-shaped plate 665 are both provided with mutually cooperating inclined edges 68.

[0026] It should be noted that the rotating plate 4 is set in the support groove 62, and when the rotating plate 4 is laid flat, the upper end will not extend to the upper side of the horizontal plate 3. Here, the L-shaped toothed plate 64 only has teeth on the horizontal side (that is, the side that is in contact with the bottom of the mounting cavity 61). Here, the length of the horizontal side of the L-shaped cavity 661 is greater than the length of the horizontal side of the adapter strip 662, so that the adapter strip 662 can move a certain distance in the L-shaped cavity 661. The setting of the arc edge 67 avoids the phenomenon of the arc block 562 and the arc plate 665 getting stuck in the vertical direction when they abut against each other. The setting of the inclined side 68 avoids the phenomenon of the arc block 562 and the arc plate 665 getting stuck in the front and back direction.

[0027] In the initial state of use, the orthopedic footrest 1 can be in contact with the vertical plate 2 without contacting the ground, facilitating walking exercises for the patient. When the patient is lying on the bed for treatment, firstly, the limiting posts 564 on the two arc-shaped blocks 562 are inserted into the slots 563. At this time, under the action of the elastic ring 565, there is resistance between the limiting posts 564 and the slots 563, preventing the arc-shaped blocks 562 from automatically disengaging. Also, since both the limiting posts 564 and the slots 563 are square, this prevents mutual rotation between them. Then, the bolt 52 is inserted into the opening, allowing it to engage with the threaded hole 51. The vertical plate 2 is then adjusted to move backward and fit against the orthopedic footrest 1. During this process, the arc-shaped blocks 562 engage with the arc plate 665. Due to the presence of the inclined side 68, the arc-shaped blocks 562 will not disengage when the vertical plate 2 moves backward. When the arc plate 665 is locked, it will push the arc plate 665 away from the threaded hole 51, thus causing the slide plate 664 to move. The first spring 666 is compressed, and the adapter bar 662 moves away from the threaded hole 51, driving the toothed plate to move away from the threaded hole 51, causing the transmission shaft 63 to rotate, which in turn drives the rotating plate 4 to rotate to a horizontal state. Of course, a U-shaped buckle can also be set here. Initially, under the pressure of the U-shaped buckle, the rotating plate 4 is in a horizontal state. At this time, the arc plate 665 does not move into the arc opening 561, making it easier for the arc block 562 to enter the arc opening 561 of the vertical plate 2. After the arc block 562 is inserted into the arc opening 561 of the vertical plate 2, the buckle can be removed. At this time, the arc block 562 and the arc plate 665 are against each other, and the arc plate 665 will not move into the arc opening 561, thus preventing the rotating plate 4 from rotating. Then, adjust the inclination angle between the corrective foot support 1 and the horizontal plate 3 as needed. There are two situations. In the first situation, the horizontal plate 3 is perpendicular to the corrective foot support 1. After adjustment, rotate the semi-circular bar 55 to make the bolt 52 rotate. With the cooperation of the threaded hole 51, the bolt 52 moves backward and the compression plate 54 moves backward until the compression plate 54 moves into the compression groove 53 and presses. At this time, the horizontal plate 3 contacts the plane (usually the soft pad on the hospital bed). At this time, the corrective foot support 1 is perpendicular to the plane to ensure that the foot is always perpendicular to the plane for correction.

[0028] The second scenario involves an angle between the horizontal plate 3 and the bottom of the orthopedic foot support 1. In this case, the orthopedic foot support 1 needs to be tilted. During this process, it can be understood that after the limiting post 564 on the arc-shaped block 562 is inserted into the slot 563, the orthopedic foot support 1 and the arc-shaped block 562 become a single unit. During rotation, the vertical plate 2 and the horizontal plate 3 remain stationary, and the orthopedic foot support 1 rotates around the threaded hole 51. At this time, the arc-shaped block 562 slides within the arc-shaped opening 561 for guidance. When the orthopedic foot support 1 is perpendicular to the horizontal plate 3, the two arc-shaped blocks 562 abut against the arc-shaped plate 665. When the orthopedic foot support 1 rotates clockwise (observed from the direction of the vertical plate 2 towards the direction of the orthopedic foot support 1, the same applies below), the two arc-shaped blocks 562... 62 rotates clockwise along the threaded hole 51. At this time, the left arc-shaped block 562 is always in contact with the arc-shaped plate 665, while the right arc-shaped block 562 is misaligned with the arc-shaped plate 665. At this time, under the action of the first spring 666 at the right end, the slide plate 664 is reset, which drives the adapter bar 662 to move towards the threaded hole 51, drives the L-shaped toothed plate 64 to move towards the threaded hole 51, drives the gear 65 to rotate, causes the transmission shaft 63 to rotate, drives the rotating plate 4 to rotate, and causes the rotating plate 4 to rotate and press against the side wall of the orthopedic foot support 1. At this time, the horizontal plate 3, the orthopedic foot support 1, and the rotating plate 4 form a triangular structure to avoid the lack of support at the upper end of the orthopedic foot support 1 and ensure the comfort of using the orthopedic foot support 1.

[0029] In summary, by setting up a rotating plate 4, a power mechanism 6, etc., when the corrective foot support 1 is tilted, the rotating plate 4 can be automatically rotated according to the tilt direction, so that the horizontal plate 3, the corrective foot support 1, and the rotating plate 4 form a triangular structure, which avoids the upper end of the corrective foot support 1 being suspended and ensures the comfort of using the corrective foot support 1. Example 2

[0030] Reference Figure 1 - Figure 9This is the second embodiment of the invention. Unlike the previous embodiment, this embodiment provides a shortening mechanism 7 for an ankle-foot inversion inhibition and drop prevention orthopedic device based on posture control. This solves the problem of preventing jamming between the orthopedic foot support 1 and the rotating plate 4 when the orthopedic foot support 1 rotates further. It includes a T-shaped groove 71 within the rotating plate 4, a T-shaped plate 72 slidably connected within the T-shaped groove 71, a vent 73 penetrating the rotating plate 4 on the T-shaped groove 71 near the drive shaft 63, and an installation port 74 on the T-shaped plate 72. An installation shaft is rotatably connected within the installation port 74. An arc-shaped sleeve 75, which mates with the orthopedic foot support 1, is fixedly connected to the shaft; the transmission mechanism 8 includes an arc-shaped groove 81 disposed on the vertical plate 2 and communicating with the arc-shaped opening 561. An arc-shaped elastic sealing plug 82 is slidably connected inside the arc-shaped groove 81. An arc-shaped strip 83 is fixedly connected to the elastic sealing plug 82. A top block 84, which mates with the arc-shaped block 562, is fixedly connected to the arc-shaped strip 83. The elastic sealing plug 82 is elastically connected to the inner wall of the arc-shaped groove 81 through a second spring 85. An air guide tube 86 is provided on the inner wall of the arc-shaped groove 81. The end of the air guide tube 86 is connected to the end of the T-shaped groove 71 away from the transmission shaft 63.

[0031] Specifically, the vent 73 is designed to prevent the T-shaped plate 72 from becoming immobile due to air pressure issues during movement. The mounting shaft allows the arc-shaped sleeve 75 to rotate around the mounting shaft. The lower end of the arc-shaped sleeve 75 is equipped with an integrated base, which is fixedly connected to the mounting shaft. The air guide tube 86 is long enough to ensure that it will not be pulled when the rotating plate 4 moves.

[0032] During use, as the orthopedic footrest 1 continues to rotate, the vertical distance between the upper end of the orthopedic footrest 1 and the horizontal plate 3 decreases. At this time, it is necessary to adjust the total length of the rotating plate 4 and the T-shaped plate 72 to ensure that the orthopedic footrest 1 and the rotating plate 4 do not jam. When the arc-shaped block 562 separates from the arc-shaped plate 665, the arc-shaped block 562 abuts against the top block 84. As the orthopedic footrest 1 continues to rotate, the arc-shaped block 562 continues to move within the arc-shaped opening 561 and squeezes the top block 84, causing the top block 84 to move away from the arc-shaped plate 665. This causes the arc-shaped strip 83 to move, and the elastic sealing plug 82 to move, thus... The gas in the arc-shaped groove 81 is pumped into the T-shaped groove 71 through the pump pipe, causing the T-shaped plate 72 in the T-shaped groove 71 to move towards the drive shaft 63. This reduces the total length of the T-shaped plate 72 and the rotating plate 4, preventing the T-shaped plate 72 from getting stuck with the orthopedic foot support 1 when it rotates. (It is worth noting that in embodiment 1, the rotating plate 4 directly abuts against the orthopedic foot support 1. In this embodiment, in order to change the total length of the rotating plate 4 and the T-shaped plate 72, the arc-shaped sleeve 75 at the end of the T-shaped plate 72 abuts against the orthopedic foot support 1.) The arc-shaped sleeve 75 provides a larger support surface and better support effect.

[0033] In summary, by setting up the shortening mechanism 7 and the transmission mechanism 8, during the continued rotation of the corrective foot support 1, the total length of the rotating plate 4 and the T-shaped plate 72 can be automatically reduced by pumping air, ensuring that the arc-shaped sleeve 75 at the end of the T-shaped plate 72 can always support the corrective foot support 1, and avoiding the phenomenon of jamming between the arc-shaped sleeve 75 and the corrective foot support 1 during the continued rotation of the corrective foot support 1. Example 3

[0034] Reference Figure 1 - Figure 11 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an angle-changing mechanism 9 for an ankle-foot inversion inhibition and drop prevention orthopedic device based on posture control. This solves the problem of maintaining the inner wall of the arc-shaped sleeve 75 in contact with the orthopedic foot support 1 during rotation. It includes a top rod 91 fixedly connected in the T-shaped groove 71, a receiving groove 92 in the T-shaped plate 72, and an I-shaped block 93 slidably connected within the receiving groove 92. The I-shaped block 93 is connected to the receiving groove via a third spring 94. The inner wall of the 92 is elastically connected. The I-shaped block 93 is provided with a sloping groove 95. A guide ball 96 is slidably connected in the sloping groove 95. A rigid rope 97 is fixedly connected to the guide ball 96. A wire groove is provided on the T-shaped plate 72. The end of the rigid rope 97 passes through the wire groove and the T-shaped plate 72 and is fixedly connected to the upper side wall of the arc-shaped sleeve 75. A transverse groove 98 that cooperates with the guide ball 96 is provided on the inner wall of the receiving groove 92. A torsion spring 99 is provided on the mounting shaft. The elastic force of the torsion spring 99 is greater than the frictional resistance between the guide ball 96 and the transverse groove 98.

[0035] Specifically, when the corrective foot support 1 rotates, the tilt angle of its edge will change. At this time, the edge angle of the arc sleeve 75 also needs to change, and a certain amount of resistance is required to further ensure the support effect. Here, the rigid rope 97 is set to prevent the arc sleeve 75 from not being able to deflect when the guide ball 96 is pulled. The torsion spring 99 is set to provide resistance for the deflection of the arc sleeve 75. Thus, there will also be a certain amount of resistance when the corrective foot support 1 rotates, so as to prevent the corrective foot support 1 from rotating on its own when the limiting of the corrective foot support 1 is not firm.

[0036] During use, as the T-shaped plate 72 moves toward the drive shaft 63, the push rod 91 will also abut against the I-shaped block 93. Since the position of the push rod 91 is fixed, it will move away from the drive shaft 63 through the I-shaped block 93. When the I-shaped block 93 moves, with the cooperation of the inclined groove 95 and the transverse groove 98, the guide ball 96 will slide in the transverse groove 98, which will pull the rigid rope 97, thereby pulling the upper end of the arc sleeve 75 and causing the arc sleeve 75 to tilt, in order to correct the tilt of the foot support 1 and ensure the support effect.

[0037] In summary, during the movement of the T-shaped plate 72 caused by the tilting of the foot support 1, the top rod 91 will also cooperate with the I-shaped block 93 inside the T-shaped plate 72. With the cooperation of the horizontal groove 98 and the inclined groove 95, the guide ball 96 will pull the rigid rope 97, causing the upper end of the arc sleeve 75 to be pulled, thereby tilting the arc sleeve 75 to cooperate with the further tilting of the foot support 1 and ensure the support effect.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation, characterized in that: include, The corrective foot support (1) has a vertical plate (2) and a horizontal plate (3) on its front and lower sides respectively. The horizontal plate (3) and the vertical plate (2) are perpendicular to each other and fixed to each other. A rotating plate (4) is provided on the horizontal plate (3). The corrective foot support (1) is perpendicular to the horizontal plate (3). The fixing mechanism (5) is set on the vertical plate (2) and is used to fix the foot brace (1) and the vertical plate (2); The power mechanism (6) is located inside the vertical plate (2) and provides power for the rotation of the rotating plate (4); The shortening mechanism (7) is set on the rotating plate (4), and it maintains a stable support state after the orthopedic foot support (1) rotates; The transmission mechanism (8) is mounted on the vertical plate (2) and provides power for the movement of the shortening mechanism (7); The tilt-changing mechanism (9) fits against the side wall of the corrective footrest (1) and works in conjunction with the shortening mechanism (7) to adjust the tilt angle according to the different angles of the corrective footrest (1).

2. The corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 1, characterized in that: The fixing mechanism (5) includes a threaded hole (51) provided on the orthopedic foot support (1), a bolt (52) is threadedly connected in the threaded hole (51), the vertical plate (2) is provided with an opening with a diameter larger than that of the bolt (52), the opening is provided with an extrusion groove (53), an extrusion plate (54) is fixedly connected to the bolt (52), and a semi-circular strip (55) is fixedly connected to the extrusion plate (54).

3. The corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 2, characterized in that: The vertical plate (2) is provided with a guide (56) to guide the foot support (1) and the horizontal plate (3) when the angle between them changes. The guide (56) includes two arc-shaped openings (561) symmetrically arranged on the vertical plate (2). Each of the two arc-shaped openings (561) is provided with an arc-shaped block (562). The arc-shaped block (562) can slide relative to the inner wall of the arc-shaped opening (561). The corrective foot support (1) is provided with a slot (563). A limiting post (564) that cooperates with the slot (563) is fixedly connected to the arc-shaped block (562). An elastic ring (565) is embedded on the side wall of the limiting post (564).

4. The orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 3, characterized in that: The power mechanism (6) includes an installation cavity (61) disposed in the vertical plate (2), a support groove (62) provided on the horizontal plate (3), a communication port communicating with the support groove (62) on the inner wall of the installation cavity (61), a drive shaft (63) rotatably connected to the inner wall of the installation cavity (61), the drive shaft (63) passing through the communication port and fixedly connected to the front side wall of the rotating plate (4), an L-shaped toothed plate (64) slidably connected in the installation cavity (61), and a gear (65) meshing with the L-shaped toothed plate (64) fixedly connected to the drive shaft (63).

5. The corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 4, characterized in that: The mounting cavity (61) is provided with a pusher (66) that provides power to the toothed plate. The pusher (66) includes an L-shaped cavity (661) disposed in the vertical plate (2) and communicating with the mounting cavity (61). A transition strip (662) fixed to an L-shaped toothed plate (64) is slidably connected in the L-shaped cavity (661). A guide groove (663) extending into the arc-shaped opening (561) is provided in the L-shaped cavity (661). A slide plate (664) fixed to the transition strip (662) is slidably connected in the guide groove (663). An arc-shaped plate (665) is fixedly connected on the slide plate (664). The slide plate (664) is elastically connected to the inner wall of the guide groove (663) through a first spring (666).

6. The corrective device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 5, characterized in that: The lower end of the arc plate (665) is provided with an arc edge (67), and the front end of the arc block (562) and the rear end of the arc plate (665) are both provided with mutually cooperating inclined edges (68).

7. The orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 6, characterized in that: The shortening mechanism (7) includes a T-shaped groove (71) disposed in the rotating plate (4), a T-shaped plate (72) is slidably connected in the T-shaped groove (71), and a vent (73) penetrating the rotating plate (4) is provided on the T-shaped groove (71) near the drive shaft (63). An installation port (74) is provided on the T-shaped plate (72), and an installation shaft is rotatably connected in the installation port (74). An arc-shaped sleeve (75) with an integrated base that cooperates with the orthopedic foot support (1) is fixedly connected to the installation shaft.

8. The orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 7, characterized in that: The transmission mechanism (8) includes an arc groove (81) disposed on the vertical plate (2) and communicating with the arc-shaped opening (561). An arc-shaped elastic sealing plug (82) is slidably connected inside the arc groove (81). An arc-shaped strip (83) is fixedly connected to the elastic sealing plug (82). A top block (84) that cooperates with the arc-shaped block (562) is fixedly connected to the arc-shaped strip (83). The elastic sealing plug (82) is elastically connected to the inner wall of the arc groove (81) through a second spring (85). An air guide pipe (86) is provided on the inner wall of the arc groove (81). The end of the air guide pipe (86) is connected to the end of the T-shaped groove (71) away from the transmission shaft (63).

9. The orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 8, characterized in that: The tilt angle changing mechanism (9) includes a top rod (91) fixedly connected in a T-shaped groove (71), a receiving groove (92) provided in the T-shaped plate (72), an I-shaped block (93) slidably connected in the receiving groove (92), the I-shaped block (93) being elastically connected to the inner wall of the receiving groove (92) by a third spring (94), an inclined groove (95) provided on the I-shaped block (93), a guide ball (96) slidably connected in the inclined groove (95), a rigid rope (97) fixedly connected on the guide ball (96), a wire groove provided on the T-shaped plate (72), the end of the rigid rope (97) passing through the wire groove and the T-shaped plate (72) and fixedly connected to the upper side wall of the arc sleeve (75), and a transverse groove (98) provided on the inner wall of the receiving groove (92) to cooperate with the guide ball (96).

10. The orthopedic device for inhibiting ankle and foot inversion and preventing drop based on posture regulation as described in claim 9, characterized in that: The mounting shaft is provided with a torsion spring (99), the elastic force of which is greater than the frictional resistance between the guide ball (96) and the transverse groove (98).

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