Multi-degree-of-freedom leg and foot correction prevention device

Abstract

The invention discloses a multi-degree-of-freedom leg and foot correction prevention device, which realizes free movement and automatic reset of feet in X / Y / Z axes and rotation directions through the synergistic effect of an elastic rope belt (chest expander), a rotatable reset telescopic bracket, a hinge type overlapping mechanism and a foot fixer. The device standardizes the posture of the foot in the limited space, so that the inner side surfaces of the legs and the soles can be always in a relatively parallel and controllable state in the moving space. On the basis of physical and medical principles, bone lines and muscle memories are ensured to grow and form in a correct direction, and the device can be used for correcting X / O-shaped legs, inner and outer splayed feet, pelvis deformation and other problems; and the legs and the feet are promoted to grow and be shaped towards healthy, straight and beautiful directions.

Description

Technical Field

[0001] The present invention belongs to the field of medical rehabilitation and posture correction products. Specifically, it is a multi-degree-of-freedom leg and foot correction device for leg correction, prevention and treatment, especially suitable for correcting X-shaped legs, O-shaped legs, in-toeing and out-toeing, and pelvic deformation; at the same time, it has the function of bodybuilding and shaping the legs and feet. Background Art

[0002] In modern society, people's attention to body posture and health is increasing day by day. However, many people are faced with the problem that the leg shape does not meet the basic standards of sports bodybuilding, such as X-shaped legs, O-shaped legs, ankle varus and valgus (in-toeing, out-toeing), and pelvic deviation. These non-standard leg shapes not only affect an individual's physical appearance but also limit career choices. For example, in fields such as sports, flight recruitment, modeling, military service, and dance, there are high requirements for leg shape, and those with obvious symptoms often have difficulty entering these industries and special positions.

[0003] It is worth noting that not only children and young people need to develop a correct and healthy leg shape, but also the number of medical cases of the elderly suffering from injuries caused by bone loss, pelvic and leg bone deformation is gradually increasing.

[0004] The above problems have brought great psychological shadows and life inconveniences to relevant people.

[0005] The formation of muscle memory, the cultivation of posture, the growth of epiphyseal lines, and the shaping of bones are a long-term and related process. Without long-term guidance and the correct use of equipment, it is difficult for ordinary people to achieve targeted control and standardized growth of bones.

[0006] Moreover, the existing leg correction technologies and devices have the following defects:

[0007] 1. Hospital correction equipment: It requires special time and high costs, has a poor experience, and is prone to rebound after correction.

[0008] 2. Wearable devices: They are cumbersome to wear, restrict activities, and are difficult to use for a long time.

[0009] 3. Foot pad products: They only relieve symptoms, cannot correct the growth direction of bones, are prone to dependence and aggravation, and treat the symptoms rather than the root cause (except for flat feet).

[0010] 4. Exoskeleton devices: They have high costs, large volumes, insufficient flexibility, and are difficult to popularize.

[0011] The present invention aims to provide a brand-new correction and prevention device to solve the above problems. The object of the invention is to provide a device that combines long-term, economic, universal and easy-to-use features; can be quickly put on and taken off, used for a long time, dynamically and regularly correct the foot posture without affecting daily activities. Through the multi-degree-of-freedom design, it ensures that the bone and muscle memory grow and form along the correct direction, promoting the growth of healthy and beautiful leg shapes. Summary of the Invention

[0012] (1) Technical problems to be solved

[0013] It is difficult for the prior art to balance economy, ease of use, comfort and universality, and it is difficult to achieve easy dynamic correction and consolidate the effect for a long time.

[0014] In order to overcome the difficulties of the prior art, the present invention provides a multi-degree-of-freedom leg and foot correction and prevention device.

[0015] (2) Technical solutions

[0016] The present invention includes the following core components:

[0017] 1. Rotatable, resetable and telescopic bracket (1)

[0018] 1.1. Central axis (101): It is provided with a central axis positioning slot hole (102), and one end of the connecting ring (103) is movably sleeved in the middle.

[0019] 1.2. Bearing assembly:

[0020] - The inner ring of the bearing (104) is fixedly connected to the central axis (101);

[0021] - On both sides of the outer ring of the bearing (105), clamping pieces (106) are symmetrically provided. Mounting holes (107) are provided on the clamping pieces and are movably connected to connecting piece 1 (109) and connecting piece 2 (110) through pins (108);

[0022] - The positioning spring (111) is sleeved on both sides of the central axis, one end is fixed in the central axis positioning slot hole (102), and the other end is connected to the outer ring of the bearing (105) to realize the automatic reset after the ankle rotates.

[0023] 1.3. Keel plate (112):

[0024] - Connecting piece 1 (109) is movably connected to the long slot hole (113) of the keel plate;

[0025] - Connecting piece 2 (110) is movably connected to the circular slot hole (114) of the keel plate; providing a lateral degree of freedom of movement;

[0026] - The slide rail (115) is fixed to one side of the keel plate, and the slider (116) is movably connected to the slide rail (115) and fixedly connected to the connecting plate 1 (117) to achieve longitudinal movement limitation.

[0027] 1.4. Elastic cord (118) (can also be replaced by a tensioner): One end is fixed to the connecting ring (103), and the other end can be connected to an external object to apply a pulling force to keep the legs straight and parallel.

[0028] 1.5. Arc support bar (129): Both ends are fixedly connected to one side of the keel plate (112) to achieve support and rolling.

[0029] 2. Hinge-type folding mechanism (2)

[0030] 2.1. Multi-stage V-shaped structure:

[0031] - The connecting plate 1 (117) is connected to the connecting plate 2 (120) through the compression spring 1 (119);

[0032] - The connecting plate 2 (120) is successively connected in series with the connecting plate n (122) through the compression spring n (121) to form a foldable V-shaped chain structure.

[0033] 2.2. Function:

[0034] - The compression spring makes the connecting plates fit tightly without external force, restricting the longitudinal displacement of the foot;

[0035] - Under the action of external force, the spring rotates, providing longitudinal movement space for the foot and adjusting the axial rotation angle to ensure that the sole is always parallel to the bottom plate of the foot fixator.

[0036] 3. Foot fixator (3)

[0037] 3.1. Foot fixator bottom plate (123):

[0038] - It is provided with a plurality of variable-diameter holes (124), one end of the hole diameter is large, which can accommodate the spring (125) and the internal thread nut (126), and the other end is small, only allowing the foot fixing rod (127) to pass through;

[0039] - The foot fixing rod (127) passes through the hole and the spring (125), and the end is fixed to the internal thread nut (126) through a thread, and the spring (125) provides elastic support;

[0040] - The inner side is provided with a shoe upper retaining bar (128) for fixing the position of the foot.

[0041] 3.2. Function: Adapt to different foot shapes, quickly put on and take off, and standardize the foot posture.

[0042] (III) Beneficial effects

[0043] 1. Multi-degree-of-freedom movement: free movement and automatic reset on the X-axis (horizontal), Y-axis (vertical), Z-axis (longitudinal) and rotation axis, ensuring that the legs and feet of both feet are always in a relatively parallel state within a limited space, while preventing the user from being fixed and causing blood circulation problems and stiffness, making it difficult for the user to use the device for a long time.

[0044] 2. Almost all-day correction: suitable for sitting, lying, and sleeping states, and continuous correction during non-ambulatory time of the day.

[0045] 3. Comfort and popularity: light structure, simple to use, easy to put on and take off, naturally comfortable (many people lie down with their feet in a V shape, especially with their feet turned outward. The soles of the feet are affected by gravity, which produces an external rotation force, and the muscles naturally contract and tighten. After a long period of habit, they basically don’t feel it. But after being standardized to a parallel‖ shape, the relevant muscles are no longer physically tense, and you can clearly feel relaxed, comfortable and happy); suitable for users of different age groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solution of the present invention, the drawings in the embodiments are briefly introduced below.

[0047] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the overall explosion and decomposition of an embodiment of the present invention;

[0049] Figure 3 A schematic diagram of a central shaft and adjacent components in an embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of a keel plate and adjacent components according to an embodiment of the present invention;

[0051] Figure 5 This is a schematic diagram of the explosion and decomposition of the foot fixator according to an embodiment of the present invention;

[0052] Figure 6 It is a partial cross-sectional schematic diagram of a foot fixator according to an embodiment of the present invention;

[0053] Description of the symbols in the accompanying drawings:

[0054] Central axis (101), central axis positioning slot hole (102), connecting ring (103), inner ring of bearing (104), outer ring of bearing (105), clamping piece (106), mounting hole (107), pin (108), connecting piece 1 (109), connecting piece 2 (110), positioning spring (111), keel plate (112), long slot hole of keel plate (113), circular slot hole of keel plate (114), slide rail (115), slider (116), connecting plate 1 (117), elastic cord (118), compression spring 1 (119), connecting plate 2 (120), compression spring n (121), connecting plate n (122), sole fixing device bottom plate (123), variable diameter hole (124), spring (125), internal thread nut (126), sole fixing rod (127), shoe upper retaining strip (128), arc support strip (129) Detailed implementation method

[0055] 1. Assemble the bracket:

[0056] Fix the central axis (101) to the inner ring of the bearing (104), and connect the outer ring of the bearing (105) to the connecting piece 1 (109) and the connecting piece 2 (110) through the pin (108);

[0057] - The connecting piece 1 (109) is embedded in the long slot hole of the keel plate (113), and the connecting piece 2 (110) is embedded in the circular slot hole (114);

[0058] The slider (116) is installed on the slide rail (115) and fixed to the connecting plate 1 (117).

[0059] Arc support strip (129): Both ends are fixedly connected to one side of the keel plate (112).

[0060] 2. Connect the stacking mechanism:

[0061] Connect and compress adjacent connecting plates (117, 120, 122) through the compression springs (119, 121) to form a chain structure.

[0062] 3. Adjust the sole fixing device:

[0063] According to the position of the variable diameter hole (124), insert the sole fixing rod (127), lock and adjust the nut (126), and adjust the pressure of the spring (125) to adapt to the required tightening force for clamping.

[0064] 4. Usage method:

[0065] The user can place the whole device on the bed, footrest, coffee table, ground, etc. The elastic cord (118) (tensioner) is connected to the outside and the tension is adjusted according to the needs and usage environment. Then place the feet in the sole fixing device to continuously guide and correct during daily activities or rest.

[0066] It should be noted that:

[0067] In this text, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense, referring to various connection methods: it can be a fixed connection, or a detachable connection; it can be directly connected, or connected through an intermediate medium.

[0068] In this text, "a plurality of" refers to a plurality of configurations including more than one.

[0069] In this text, the orientation terms such as "vertical", "horizontal", "upper", "bottom", "middle", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only a simplified description of the present invention, and does not mean that the device or component must have a specific orientation, be constructed and operated in a specific orientation.

[0070] The device described in this text has a left-right symmetric structure.

[0071] The above is only one embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom leg and foot correction and prevention device, characterized in that: include: The rotatable and resetting telescopic bracket is composed of a central axis (101), a bearing assembly (104-105), a positioning spring (111), a keel plate (112), a slide rail (115) and a slider (116), and an arc-shaped support strip (129); The central shaft (101) is provided with a positioning slot (102), and a connecting ring (103) is sleeved on the middle of the central shaft; The bearing inner ring (104) is fixed to the central axis, and the bearing outer ring (105) is movably connected to the connecting piece 1 (109) and the connecting piece 2 (110) through the clamping piece (106) and the pin (108); The long slot hole (113) and the circular slot hole (114) of the keel plate (112) are movably connected to the connecting piece 1 (109) and the connecting piece 2 (110) respectively; The slide rail (115) is fixed to one side of the keel plate, and the slider (116) is movably connected to the slide rail and fixed to the connecting plate 1 (117); The hinge-type folding mechanism is composed of a plurality of connecting plates (117, 120, 122) connected by a plurality of compression springs (119, 121) to form a chain structure, providing longitudinal movement space; The foot fixer comprises a foot fixer bottom plate (123), a variable diameter hole (124), a foot fixer rod (127), a spring (125) and a shoe upper stop bar (128), and is used for regulating the foot posture and flexibly clamping and connecting the foot or the shoe.

2. The device according to claim 1, characterized in that: The hinge-type folding mechanism is connected by a connecting plate 1 (117), a connecting plate 2 (120), and a connecting plate n (122) through compression springs (119, 121) to form a multi-stage chain structure; The compression spring makes the connection plates fit tightly when there is no external force, and allows the force-bearing surface (sole) to rotate axially and move longitudinally when an external force is applied to the force-bearing surface (sole).

3. The device according to claim 1, characterized in that: The foot fixer comprises a foot fixer bottom plate (123), a variable diameter hole (124), a spring (125), a foot fixer rod (127) and a shoe upper stop bar (128); One end of the fixed foot rod (127) passes through the variable diameter hole (124), and the end is threaded and fixed by an internal thread nut (126). The spring (125) is mounted on the fixed foot rod to provide elastic support. The other end of the fixed foot rod (127) is bent upward. The fixed upper blocking bar (128) cooperates with the movable fixed foot rod (127) to quickly clamp and release the shoe.

4. The device according to claim 1, characterized in that: One end of the elastic cord (118) (or tensioner) is connected to the connecting ring (103), and the other end can be connected to an external object to apply a longitudinal parallel traction force to the legs.

5. The device according to claim 1, characterized in that: One end of the positioning spring (111) is fixed to the central axis positioning slot (102), and the other end is connected to the bearing outer ring (105). The bearing inner ring (104) is fixedly sleeved on the central axis (101), so as to realize automatic resetting after the ankle is rotated.

6. The device according to claim 1, characterized in that: The long slot hole (113) and the circular slot hole (114) of the keel plate (112) are respectively connected through a connecting piece 1 (109) and a connecting piece 2 (110); one side of the keel plate is fixedly connected to a slide rail (115); the slide rail is movably connected to a slider (116) to achieve lateral and longitudinal movement limitation; one side of the keel plate is connected to an arc-shaped support strip (129) to achieve support and rolling.

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