Human calf support device

Abstract

The present invention discloses a human calf support device, comprising a main support plate, a foot support plate, and a buffer block arranged on the foot support plate and used to provide elastic support to the main support plate. The human calf support device of the present invention can absorb the impact force from the ground during walking and form an elastic force transmitted upward, which is helpful to improve the treatment effect by arranging the buffer block on the foot support plate.

Description

Technical Field

[0001] The invention belongs to the technical field of knee brace equipment, and in particular, relates to a human calf support device. Background Art

[0002] The existing human calf support device is used in conjunction with a knee joint load reduction device. The human calf support device mainly includes a main support plate, a foot grounding panel and a transverse support plate. The main support plate is an arc-shaped long strip, and the transverse cross-section is parallel to the frontal plane of the calf. The lower end of the arc-shaped plate is a thickened transverse link structure, and there is a through circular shaft hole in the middle of the side. The lower end of the main support plate is connected to the foot grounding panel below at the rear side of the human foot through a circular shaft, and a rotating transverse link grounding structure is formed at the rear and upper part of the ankle joint to swing back and forth in accordance with the swing phase of the ankle joint, and transmit the load force to the ground through the grounding panel. However, it was discovered during use that this link structure actually formed a conversion structure of two forces, namely, the gravity from the thigh and the ground vibration force received by the grounding structure converge at the circular axis at the link. As the circular axis structure swings, all the forces of the overall supporting structure are concentrated on the circular axis at the link, forming an antagonism between the upper and lower forces. Although the foot grounding panel is used to support the load-reducing device worn at the human knee joint, it does not take into account the reaction force generated by the impact force on the ground during exercise, so that the knee joint located at the center of the foot and thigh cannot effectively reduce the load.

[0003] In the existing human calf support device, the polyurethane spring located in front of the simulated femoral condyle structure cannot effectively buffer the forward impact force when the knee joint is flexed or extended. In addition, the load received by the polyurethane spring in the original simulated tibial platform needs to be transmitted to the ground through the transverse link structure and the grounding panel (foot support plate). However, if these two structures do not have the functions of buffering, energy absorption and shock absorption, the force transmitted to the ground by the load reduction device will react on the knee joint, making it difficult for the load reduction device to effectively produce a therapeutic effect.

[0004] In addition, the transverse support plate of the upper section of the human calf support device is a two-piece combined structure. The connection between the transverse support plate and the load-reducing device is a longitudinal insertion type on the inside and outside. The transverse adjustment is located at the rear side. It is difficult to accurately adjust the position during use and it is inconvenient. The original reverse lifting device tied to the thigh should always be kept in a trumpet shape. When the knee joint is flexed, the trumpet binding ring relaxes and moves downward. When the knee joint is straightened, the trumpet binding ring tightens and rises to generate a lifting force. However, the existing transverse support plate is only connected to a step lifting plate on both sides. After being tied to the thigh, the trumpet binding ring has the problem of insufficient lifting force.

[0005] Moreover, the existing load-reducing device is provided with a horizontal axis controlled slide groove structure and a guide groove structure at the position corresponding to the knee joint, and a metal coil spring for resetting is provided inside the two groove structures. Since the metal coil spring is used, it is easy to generate noise during use. At the same time, the existing human calf support device lacks physical therapy effects, such as anti-inflammatory, swelling, analgesic and other treatment methods of magnetic field.

[0006] To sum up, it is necessary to make adjustments to the existing problems. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a human calf support device, the purpose of which is to improve the treatment effect.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a human calf support device includes a main support plate, a foot support plate and a first buffer block arranged on the foot support plate and used to provide elastic support for the main support plate.

[0009] The first buffer block is made of energy-absorbing material.

[0010] The human calf support device also includes a support pad for providing elastic support to the foot support plate and / or the human foot, and the support pad is made of energy-absorbing material.

[0011] The human calf support device also includes a thigh support plate, a calf support plate, a return mechanism for providing support for the thigh support plate and a transverse axis arranged on the calf support plate, the thigh support plate has a slide groove for inserting the transverse axis, the return mechanism includes a first magnet, a second magnet and a support frame that is movably arranged and in contact with the thigh support plate, the second magnet is located between the first magnet and the support frame and the like magnetic poles of the first magnet and the second magnet are arranged opposite to each other, and the calf support plate has a guide groove for accommodating the first magnet and the second magnet.

[0012] There are multiple guide grooves, and each guide groove is provided with a first magnet and a second magnet respectively. The support frame is located between the second magnet and the thigh support plate, and the length direction of the guide groove is parallel to the length direction of the calf support plate.

[0013] Two of the first magnet and the second magnet are provided, two of the guide grooves are provided, and the support frame is a U-shaped structure. The support frame includes a first support portion in contact with the thigh support plate and two second support portions connected to the first support portion, each second support portion is respectively inserted into a guide groove and each second support portion is respectively in contact with a second magnet.

[0014] The human calf support device is characterized in that it also includes a front traction belt and a rear traction belt connected to the two thigh support plates, the front traction belt and the rear traction belt are arranged relatively to each other, the two ends of the front traction belt are respectively connected to one end of the two thigh support plates, and the two ends of the rear traction belt are respectively connected to the other end of the two thigh support plates; the front traction belt and the rear traction belt are both provided with lift plates; the thigh support plate includes an upper guard plate and an inner pad arranged on the upper guard plate, the upper guard plate includes a guard plate body and a step-shaped limiting structure arranged on the guard plate body, and the step-shaped limiting structure is located between the guard plate body and the inner pad.

[0015] The step-shaped limiting structure includes a limiting protrusion arranged on the guard plate body, and a plurality of limiting protrusions are provided and all of the limiting protrusions are arranged in sequence along the length direction of the guard plate body. The limiting protrusion includes a first upper limit surface and a second upper limit surface. The first end of the first upper limit surface is connected to the guard plate body, the second end of the first upper limit surface is connected to the first end of the second upper limit surface, the second end of the second upper limit surface is connected to the guard plate body, there is a distance between the second end of the first upper limit surface and the guard plate body, and the first upper limit surface of the same first limiting protrusion is located above the second upper limit surface.

[0016] The main support plate includes a lower limit block that cooperates with the first buffer block. The first buffer block is located below the lower limit block and is made of polyurethane material. When the first buffer block contacts the lower limit block, the first buffer block can convert the absorbed impact force into an elastic supporting force for the lower limit block.

[0017] The human calf support device also includes a second buffer block for providing elastic support to the support frame and a third buffer block for contacting the thigh support plate and for elastically limiting the thigh support plate during the change of the angle between the thigh support plate and the calf support plate. The second buffer block and the third buffer block are arranged on the calf support plate and are made of energy-absorbing material.

[0018] The human calf support device of the present invention can absorb the impact force from the ground during walking by arranging a buffer block on the foot support plate to buffer and reduce the reaction force of the ground and form an elastic force transmitted upward, which is helpful to improve the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] This specification includes the following drawings, which show the following contents:

[0020] Figure 1 It is a schematic structural diagram of the human calf support device of the present invention;

[0021] Figure 2ais a schematic diagram of the cooperation between the return mechanism and the thigh support plate and the calf support plate in the bent state;

[0022] Figure 2b is a schematic diagram of the cooperation between the return mechanism and the thigh support plate and the calf support plate in the straightened state;

[0023] Figure 3 1 is a schematic diagram of the partial structure of the calf support plate;

[0024] Figure 4 It is a structural schematic diagram of the main support plate;

[0025] Figure 5 It is a structural schematic diagram of the upper support plate;

[0026] Figure 6 It is a structural schematic diagram of the lower support plate;

[0027] Figure 7 is a structural schematic diagram of the locking mechanism;

[0028] Figure 8 is a schematic diagram of the connection between the lateral support mechanism and the calf support plate;

[0029] Fig. 9 It is a structural schematic diagram of a step-shaped limiting structure;

[0030] Fig.10 It is a schematic diagram of the structure of the foot support plate;

[0031] Fig.11 It is a schematic diagram of the connection between the balance belt and the calf support plate;

[0032] Fig.12 is a schematic diagram of the structure of the lift plate;

[0033] The markings in the figure are: 1. foot support plate; 2. upper support plate; 201. second slide groove; 202. first limit groove; 203. first avoidance groove; 3. lower support plate; 301. second limit groove; 302. second avoidance groove; 303. third avoidance groove; 4. lower limit block; 5. first buffer block; 6. upper cover plate; 7. first support part; 8. second support part; 9. first magnet; 10. second magnet; 11. third magnet; 12. fourth magnet; 13. horizontal axis; 14. first slide groove; 15. thigh support plate; 16. calf support plate; 17. Guide groove; 18. Guard plate body; 19. Third buffer block; 20. First limiting protrusion; 21. First upper limit surface; 22. Second upper limit surface; 23. Strap; 24. Front traction belt; 25. Rear traction belt; 26. First locking knob; 27. Second locking knob; 28. First cushion block; 29. ​​Second cushion block; 30. Rotating plate; 31. Third slide groove; 32. Second limiting protrusion; 33. Upper limit block; 34. Fourth avoidance groove; 35. Transverse support plate; 36. Balance belt; 37. Second buffer block; 38. Lifting plate. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0035] It should be noted that, in the following embodiments, the "first", "second", "third" and "fourth" do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0036] like Figures 1 to 11 As shown, the present invention provides a human calf support device, including a thigh support plate 15, a calf support plate 16, a return mechanism for providing support for the thigh support plate 15 and a transverse axis 13 arranged on the calf support plate 16, the thigh support plate 15 has a first slide groove 14 for inserting the transverse axis 13, the return mechanism includes a first magnet 9, a second magnet 10 and a support frame which is movably arranged and in contact with the thigh support plate 15, the second magnet 10 is located between the first magnet 9 and the support frame and the like magnetic poles of the first magnet 9 and the second magnet 10 are arranged opposite to each other, and the calf support plate 16 has a guide groove 17 for accommodating the first magnet 9 and the second magnet 10.

[0037] Specifically, if Figures 1 to 3As shown, two thigh support plates 15 are provided, and the two thigh support plates 15 are arranged relatively. When in use, the two thigh support plates 15 are respectively located on the left and right sides of the human thigh. Two calf support plates 16 are also provided, and the two calf support plates 16 are arranged relatively. When in use, the two calf support plates 16 are respectively located on the left and right sides of the human calf, and the lower end of each thigh support plate 15 is respectively rotatably connected to the upper end of a calf support plate 16 at the human knee joint. The horizontal axis 13 is fixedly provided on the calf support plate 16, and the horizontal axis 13 is a cylinder, and the axis of the horizontal axis 13 is parallel to the thickness direction of the thigh support plate 15 and the calf support plate 16. A plurality of guide grooves 17 are provided, and a first magnet 9 and a second magnet 10 are respectively provided in each guide groove 17, and the support frame is located between the second magnet 10 and the thigh support plate 15, and the length direction of the guide groove 17 is parallel to the length direction of the calf support plate 16. The first magnet 9 and the second magnet 10 are permanent magnets, the first magnet 9 is located below the second magnet 10, the guide groove 17 is a rectangular groove set inside the calf support plate 16, the guide groove 17 extends along the length direction of the calf support plate 16, and the first magnet 9 is located at the bottom of the guide groove 17. The guide groove 17 guides the first magnet 9, the second magnet 10 and the support frame, and the first magnet 9, the second magnet 10 and the support frame can only move linearly along the length direction of the guide groove 17. Since the first magnet 9 and the second magnet 10 are arranged in a manner that the same magnetic poles are opposite, a repulsive force will be generated between the first magnet 9 and the second magnet 10, and the magnetic repulsive force is used to keep the support frame in contact with the upper thigh support plate 15 at all times, and the support frame can provide an upward support force to the thigh support plate 15. Thereby, the metal spring can be eliminated, the noise generated during use can be eliminated, and the magnets provided can increase the magnetic therapy effect, which helps to further improve the external fixation treatment effect. The return mechanism is arranged between the thigh support plate 15 and the calf support plate 16, which can transmit the gravity from the femur to the calf, avoiding concentrated load and reducing the compressive stress of the tibiofemoral joint. In the treatment of acute and chronic injuries of the knee joint, it can not only enable the knee joint to perform early functional exercise activities, but also fully eliminate the load on the knee joint.

[0038] like Figure 2aAs shown, in this embodiment, two first magnets 9 and two second magnets 10 are provided, two guide grooves 17 are provided, and one first magnet 9 and one second magnet 10 are provided in each guide groove 17, respectively. The two guide grooves 17 are located on the same straight line parallel to the width direction of the calf support plate 16, and the width direction of the calf support plate 16 is perpendicular to the axis of the horizontal axis 13. The support frame is a U-shaped structure, and the support frame includes a first support portion 7 in contact with the thigh support plate 15 and two second support portions 8 connected to the first support portion 7, and each second support portion 8 is respectively inserted into a guide groove 17 and each second support portion 8 is respectively in contact with a second magnet 10. The second support portion 8 is vertically arranged, and the length direction of the second support portion 8 is parallel to the length direction of the guide groove 17. The first support portion 7 is an arc-shaped structure, and the axis of the first support portion 7 is parallel to the axis of the horizontal axis 13. The first support portion 7 is located above the second support portion 8, and the upper ends of the two second support portions 8 are respectively fixedly connected to the two ends of the first support portion 7 in the arc length direction. The top surface of the first supporting portion 7 contacts the bottom surface of the thigh supporting plate 15 . The top surface of the first supporting portion 7 is an arc surface, and the bottom surface of the thigh supporting plate 15 is also an arc surface.

[0039] like Figure 1 and Figure 2a As shown, the first chute 14 is an arc-shaped chute, and the third magnet 11 and the fourth magnet 12 are arranged in the first chute 14, and the fourth magnet 12 is located between the third magnet 11 and the horizontal axis 13, and the like magnetic poles of the third magnet 11 and the fourth magnet 12 are arranged oppositely. The first chute 14 is arranged to penetrate along the thickness direction of the thigh support plate 15, and the axis of the first chute 14 is parallel to the axis of the horizontal axis 13, and the arc of the first chute 14 is less than 180 degrees. The lower end of the thigh support plate 15 is inserted into the inside of the calf support plate 16, and the first chute 14 is located at the lower end of the thigh support plate 15. The third magnet 11 and the fourth magnet 12 are permanent magnets, and the third magnet 11 and the fourth magnet 12 can move in the first chute 14 along the arc length direction, and the horizontal axis 13 is inserted into the first chute 14. Also, since the third magnet 11 and the fourth magnet 12 are arranged in a manner that the same magnetic poles are opposite to each other, a repulsive force is generated between the third magnet 11 and the fourth magnet 12, the fourth magnet 12 is in contact with the horizontal axis 13, and the third magnet 11 is in contact with the inner wall surface of the end of the first chute 14 away from the horizontal axis 13. Thus, the metal spring provided in the chute can be eliminated, the noise generated during use can be eliminated, and the provided magnet can increase the magnetic therapy effect, which helps to further improve the external fixation treatment effect.

[0040] When the knee joint is in flexion, the simulated femoral condyle structure and the simulated tibial platform structure are at an oblique angle, and the third magnet 11 and the fourth magnet 12 in the first slide groove 14 of the simulated femoral condyle structure lose the squeezing force and repel and separate from each other, so that the simulated femoral condyle structure slides to the front of the first supporting part 7, and the thigh support plate returns to its original position. The first magnet 9 and the second magnet 10 in the two guide grooves 17 of the simulated tibial platform structure are also in a state of like-charge repulsion and separation, so that the first support part 7 is suspended and the simulated femoral condyle structure is supported by elastic force; when the knee joint is straightened, the center point of the simulated femoral condyle structure slides to the upper midpoint of the first support part 7, and the first magnet 9 and the second magnet 10 in the guide groove 17 are squeezed and brought together, and an upward elastic force is generated due to like-charge repulsion, which lifts the simulated femoral condyle structure upward, and the third magnet 11 and the fourth magnet 12 in the first slide groove 14 in the simulated femoral condyle structure are squeezed by the first support part 7 and the horizontal axis 13, and move together downward, and the thigh support plate rises, and an upward pushing force is generated on the thigh through reverse skin traction to reduce the load on the knee joint. At the same time, a part of the force from the thigh passes through the thigh support plate to make the simulated femoral condyle structure press the first support part 7 downward. The double magnetic suspension elastic force of the first magnet 9 and the second magnet 10 in the guide groove 17 and the third magnet 11 and the fourth magnet 12 in the first slide groove 14 produces the function of the meniscus through the exchange of force between the thigh support plate and the thigh.

[0041] like Figure 1 and Fig. 9 As shown, the thigh support plate 15 includes an upper guard plate and an inner pad arranged on the upper guard plate, and the upper guard plate includes a guard plate body 18 and a step-shaped limiting structure arranged on the guard plate body 18, and the step-shaped limiting structure is located between the guard plate body 18 and the inner pad.

[0042] like Figure 1 , Figure 2a and Fig. 9As shown, the thigh support plate 15 also includes a rotating plate 30 fixedly connected to the guard plate body 18, the rotating plate 30 is located below the guard plate body 18, the upper end of the rotating plate 30 is fixedly connected to the lower end of the guard plate body 18, the lower end of the rotating plate 30 is rotatably connected to the calf support plate 16 and the lower end of the rotating plate 30 is inserted into the inner cavity of the calf support plate 16, the first slide groove 14 is arranged on the rotating plate 30, the support frame is located below the rotating plate 30, and the top surface of the first support portion 7 is in contact with the bottom surface of the rotating plate 30. The inner pad is used to contact the skin of the patient's thigh, and the material of the inner pad is a medical textile material to meet the user's requirements for comfort. The inner pad is located on the inner side of the guard plate body 18, the inner pad is fixedly connected to the inner wall surface of the upper guard plate, and the inner pad fits the step-shaped limiting structure and the guard plate body 18. The step-shaped limiting structure includes a first limiting protrusion arranged on the guard plate body 18. There are multiple first limiting protrusions and all the first limiting protrusions are arranged in sequence along the length direction of the guard plate body 18. The length direction of the guard plate body 18 is parallel to the length direction of the human thigh.

[0043] like Fig. 9 As shown, the first limiting protrusion includes a first upper limit surface 21 and a second upper limit surface 22, the first end of the first upper limit surface 21 is connected to the guard plate body 18, the second end of the first upper limit surface 21 is connected to the first end of the second upper limit surface 22, the second end of the second upper limit surface 22 is connected to the guard plate body 18, there is a distance between the second end of the first upper limit surface 21 and the guard plate body 18, and the first upper limit surface 21 of the same first limiting protrusion is located above the second upper limit surface 22. The first limiting protrusion is fixedly set on the inner wall surface of the guard plate body 18, the first upper limit surface 21 is a plane perpendicular to the length direction of the guard plate body 18, the second upper limit surface 22 is an inclined plane, the inclination direction of the second upper limit surface 22 and the length direction of the guard plate body 18 have an angle and the angle is an acute angle, the length directions of the first upper limit surface 21 and the second upper limit surface 22 are parallel to the width direction of the guard plate body 18, and the first upper limit surface 21 and the second upper limit surface 22 extend along the entire width direction of the guard plate body 18. The first end and the second end of the first upper limit surface 21 are opposite ends in the width direction of the first upper limit surface 21, and the width direction of the first upper limit surface 21 is perpendicular to the length direction and the width direction of the guard plate body 18. The first end of the first upper limit surface 21 is fixedly connected to the guard plate body 18, and the second end of the first upper limit surface 21 is fixedly connected to the first end of the second upper limit surface 22. The first end and the second end of the second upper limit surface 22 are opposite ends in the width direction of the second upper limit surface 22, and the width direction of the second upper limit surface 22 is also its inclination direction. The second end of the second upper limit surface 22 is fixedly connected to the guard plate body 18, and the second end of the second upper limit surface 22 is located below the first end.

[0044] like Fig. 9As shown, for two adjacent first limiting protrusions, the second end of the second upper limit surface 22 of one first limiting protrusion is connected to the first end of the first upper limit surface 21 of the other first limiting protrusion, that is, the second end of the second upper limit surface 22 of the first limiting protrusion located above is fixedly connected to the first end of the first upper limit surface 21 of the first limiting protrusion located below, and the distance between the first end of the second upper limit surface 22 and the guard plate body 18 is greater than the distance between the second end of the second upper limit surface 22 and the guard plate body 18. Thus, a step-shaped limiting structure is formed on the inner wall surface of the upper guard plate to generate a lifting force to prevent the thigh support plate 15 from sliding downward during use, thereby improving the use effect.

[0045] like Figure 1 , Figures 3 to 8 and Fig.10 As shown, the human calf support device of the present invention also includes a main support plate, a foot support plate 1 and a lateral support mechanism connected to the calf support plate 16, the length of the main support plate is adjustable, the main support plate includes an upper support plate connected to the lateral support mechanism, a lower support plate rotatably connected to the foot support plate 1 and relatively movable with the upper support plate, and a locking mechanism that keeps the upper support plate and the lower support plate relatively fixed. The main support plate is shaped according to the biological morphology of the back side of the human calf, the shape of the main support plate matches the shape of the human calf, the main support plate is used to fit the human calf at the back side of the human calf, the main support plate is vertically arranged, and the main support plate is fixed to the human calf by a strap when in use. The lower support plate 3 is slidably connected to the upper support plate 2, and the lower support plate 3 and the upper support plate 2 are both long strips with a circular arc cross section (the cross section is a plane perpendicular to the length direction of the lower support plate 3 and the upper support plate 2).

[0046] like Figures 4 to 7As shown, the upper support plate 2 has a second chute 201 for the lower support plate 3 to be embedded, the second chute 201 has a certain length and is a groove extending from the bottom surface of the upper support plate 2 along the length direction of the upper support plate 2 toward the upper end of the upper support plate 2, the upper end of the upper support plate 2 is connected to the transverse support mechanism, the upper end of the lower support plate 3 is inserted into the second chute 201, and the lower end of the lower support plate 3 is located below the upper support plate 2. When the locking mechanism is in the unlocked state, the upper support plate 2 and the lower support plate 3 can move relative to each other in the vertical direction, and the depth of the lower support plate 3 inserted into the second chute 201 can be adjusted, so that the length of the main support plate can be adjusted; the greater the depth of the lower support plate 3 inserted into the second chute 201, the smaller the length of the main support plate; conversely, the greater the length of the main support plate. When the locking mechanism is in the locked state, the upper support plate 2 and the lower support plate 3 can be fixed, so that the main support plate is kept in the adjusted length state. The length of the main support plate of this structure is easy and convenient to adjust, and can adapt to the changes in calf lengths of different people, thereby improving versatility and good adaptability.

[0047] like Figures 4 to 7As shown, the locking mechanism includes an upper limit block 33, a second limit protrusion 32 disposed on the upper limit block 33, and a first locking knob 26 threadedly connected to the upper limit block 33, the upper support plate 2 has a first limit groove 202 for the upper limit block 33 to be embedded in and a first avoidance groove 203 for the second limit protrusion 32 to be embedded in, and the lower support plate 3 has a second avoidance groove 302 for the second limit protrusion 32 to be embedded in and aligned with the first avoidance groove 203, and the number of the second avoidance grooves 302 is greater than the number of the first avoidance grooves 203. The upper limit block 33 is a block structure, the first limit groove 202 is a rectangular groove penetrating along the plate thickness direction on the upper support plate 2, the length of the first limit groove 202 is less than the length of the second slide groove 201, the first limit groove 202 is connected to the second slide groove 201, the length of the upper limit block 33 is less than the length of the first limit groove 202, and the length direction of the upper limit block 33 is parallel to the length direction of the upper support plate 2. The first avoidance groove 203 is a rectangular groove that is arranged on the upper support plate 2 along the plate thickness direction, and the first avoidance groove 203 is a groove that starts from the inner wall surface at the first limiting groove 202 and extends toward the inside of the upper support plate 2 along the width direction of the upper support plate 2. A plurality of first avoidance grooves 203 are arranged, and all first avoidance grooves 203 are arranged on opposite sides of the first limiting groove 202 and the first avoidance grooves 203 are symmetrically arranged. The first avoidance groove 203 is connected with the first limiting groove 202 and the second slide groove 201, that is, the first avoidance grooves 203 are arranged in two rows on the upper support plate 2, and all first avoidance grooves 203 in the same row are arranged in sequence along the length direction of the upper support plate 2 and are equidistantly distributed. A plurality of second limiting protrusions 32 are provided and are distributed on opposite sides of the upper limit block 33. The second limiting protrusions 32 are fixedly connected to the upper limit block 33 and extend toward the outside of the upper limit block 33. The formation of the second limiting protrusions 32 matches the shape of the first avoidance groove 203, and each second limiting protrusion 32 is respectively embedded in a first avoidance groove 203.

[0048] like Figures 4 to 7As shown, the lower support plate 3 has a second limiting groove 301 for the upper limiting block 33 to be embedded in. The second limiting groove 301 is a rectangular groove that penetrates the lower support plate 3 along the plate thickness direction. The length of the second limiting groove 301 is greater than the length of the first limiting groove 202, and the second limiting groove 301 is connected to the first limiting groove 202. The second avoidance groove 302 is a rectangular groove that penetrates the lower support plate 3 along the plate thickness direction, and the second avoidance groove 302 is a groove that starts from the inner wall surface at the second limiting groove 301 and extends toward the inside of the lower support plate 3 along the width direction of the lower support plate 3. A plurality of second avoidance grooves 302 are arranged, and all second avoidance grooves 302 are arranged on opposite sides of the second limiting groove 301 and the second avoidance grooves 302 are symmetrically arranged. The second avoidance grooves 302 are connected to the second limiting groove 301, that is, the second avoidance grooves 302 are arranged in two rows on the lower support plate 3, and all second avoidance grooves 302 in the same row are arranged in sequence along the length direction of the lower support plate 3 and are equidistantly distributed. The shape and size of the first avoidance groove 203 are the same as those of the second limiting groove 301, and each second limiting protrusion 32 is respectively embedded in a first avoidance groove 203 and a second avoidance groove 302, and the upper limit block 33 is simultaneously embedded in the first limiting groove 202 and the second limiting groove 301, so that the upper support plate 2 and the lower support plate 3 can be kept relatively fixed in the length direction. After tightening the first locking knob 26, the upper limit block 33 cooperates with the first locking knob 26 to clamp the lower support plate 3, so as to achieve a fixed connection between the upper support plate 2 and the lower support plate 3. Moreover, by adjusting the second limiting protrusion 32 to be embedded in the second avoidance groove 302 at different positions on the lower support plate 3, the main support plate can be kept in the adjusted length state. When adjusting the length of the main support plate, it is necessary to first loosen the first locking knob 26, move the upper limit block 33 out of the second limit groove 301, and at the same time move the second limit protrusion 32 out of the second avoidance groove 302, and then pull the lower support plate 3 until the main support plate is adjusted to a suitable length, then move the upper limit block 33 into the second limit groove 301, and at the same time embed the second limit protrusion 32 into the second avoidance groove 302, and finally tighten the first locking knob 26.

[0049] like Figures 4 to 7As shown, the lower support plate 3 has a third avoidance groove 303 for the first locking knob 26 to be embedded. The third avoidance groove 303 is a groove that is set on the lower support plate 3 along the plate thickness direction. The third avoidance groove 303 extends along the length direction of the lower support plate 3. The third avoidance groove 303 is connected to the second limiting groove 301 and the width of the third avoidance groove 303 is smaller than the width of the second limiting groove 301. The upper limit block 33 has an internal threaded hole for the first locking knob 26 to be embedded. The structure of the first locking knob 26 is as known to those skilled in the art, and it mainly includes a connected screw portion and a knob head. The screw portion is a cylinder and the outer circumferential surface of the screw portion is provided with an external thread. The screw portion is inserted into the internal threaded hole provided on the upper limit block 33, and the internal threaded hole is provided at the center of the upper limit block 33. The knob head is a circular structure and one end of the screw part is coaxially fixedly connected with the knob head at the center of the knob head. The screw part passes through the third avoidance groove 303 and is inserted into the internal threaded hole of the upper limit block 33. The diameter of the knob head is greater than the width of the third avoidance groove 303 and less than the length of the third avoidance groove 303. The knob head is located outside the lower support plate 3 for easy screwing. After tightening the first locking knob 26, the upper limit block 33 cooperates with the knob head to clamp the lower support plate 3. The upper limit block 33 fits with the inner wall surface of the lower support plate 3, and the knob head fits with the outer wall surface of the lower support plate 3.

[0050] like Figure 1 and Fig.10As shown, the upper end of the foot support plate 1 is rotatably connected to the lower end of the lower support plate 3 through a rotating shaft, and the foot support plate 1 is used to transfer the load of the support device to the ground. The foot support plate 1 is rotatable relative to the lower support plate, and the rotation center line of the foot support plate 1 when rotating relative to the lower support plate is located in the horizontal plane, the rotation center line of the foot support plate 1 when rotating relative to the lower support plate is parallel to the axis of the horizontal axis 13, and the rotation center line of the foot support plate 1 when rotating relative to the lower support plate is perpendicular to the length direction of the lower support plate 3. When in use, the foot support plate 1 is fixed to the human foot by a strap. The foot support plate 1 and the lower support plate are arranged to be rotatably connected, which can conform to the extension and flexion movement of the ankle joint, that is, it does not affect the walking activity, and is convenient to use. A lower limit block 4 is provided on the lower support plate 3, and a first buffer block 5 matched with the lower limit block 4 is provided on the foot support plate 1. The first buffer block 5 is located below the lower limit block 4 and the first buffer block 5 is made of energy-absorbing material. The first buffer block 5 is preferably made of polyurethane material. The first buffer block 5 is fixedly arranged at the upper end of the foot support plate 1. The first buffer block 5 is a C-shaped structure. The lower limit block 4 is fixedly arranged at the lower end of the lower support plate 3. The first buffer block 5 is used to contact the lower support plate 3 to buffer and absorb the impact force from the ground and convert it into an elastic support force. After the first buffer block 5 contacts the lower limit block 4, the first buffer block 5 can apply an upward elastic support force to the main support plate. When the supporting device is in an upright position as a whole, the lower support plate 3 and the first buffer block 5 are in the same horizontal plane, and the lower support plate 3 hits the first buffer block 5 arranged at the upper end of the foot support plate 1, forming an upwardly transmitted elastic support force.

[0051] like Figure 1 and Fig.10 As shown, a support pad for contacting the bottom surface of a human foot is provided on the foot support plate 1. The support pad is made of energy-absorbing material to buffer and reduce the reaction force of the ground. The support pad includes a first pad block 28 and a second pad block 29 arranged on the first pad block 28. The first pad block 28 is fixedly arranged on the bottom surface of the foot support plate 1. The first pad block 28 is located below the foot support plate 1. A avoidance hole for the second pad block 29 to pass through is arranged on the bottom surface of the foot support plate 1. The second pad block 29 is fixedly connected to the top surface of the first pad block 28. The second pad block 29 passes upward through the avoidance hole on the foot support plate 1. The second pad block 29 is used to contact the bottom surface of a human foot. A support pad with a special structure is provided. The center of the support pad is raised upward. The raised area can contact the sole of a human foot or the sole of a shoe. The first pad block 28 is located below the foot support plate 1 and contacts the ground. When used, it can absorb the impact force from the ground during walking, which helps to improve the treatment effect.

[0052] like Figure 1 , Figure 3 and Figure 8As shown, the transverse support mechanism includes a transverse support plate 35 and an upper cover plate 6 connected to the main support plate. The transverse support plate 35 is sandwiched between the upper cover plate 6 and the main support plate. The transverse support plate 35 is connected to the calf support plate 16 through a locking knob. The transverse support plate 35 has a fourth avoidance groove 34 for inserting the locking knob. The calf support plate 16 has an internal threaded hole for inserting the second locking knob 27. The length of the fourth avoidance groove 34 is greater than the diameter of the internal threaded hole, so that the distance between the upper cover plate 6 and the calf support plate 16 can be adjusted. The transverse support plate 35 is a U-shaped structure. The opposite ends of the transverse support plate 35 are respectively connected to the lower ends of the two calf support plates 16 through a second locking knob 27. The calf support plate 16 has a third slide groove 31 for the transverse support plate 35 to pass through. The third slide groove 31 extends along the width direction of the calf support plate 16. The fourth avoidance groove 34 extends along the length direction of the transverse support plate 35, and the fourth avoidance groove 34 is set to penetrate along the thickness direction of the transverse support plate 35. Two fourth avoidance grooves 34 are set. The upper cover plate 6 is fixedly connected to the upper end of the upper support plate. The upper cover plate 6 is located in the middle position of the two fourth avoidance grooves 34, and the transverse support plate 35 is clamped between the upper cover plate 6 and the upper support plate. The structure of the second locking knob 27 is as known to those skilled in the art, and it mainly includes a connected screw portion and a knob head. The screw portion is a cylinder and the outer circumferential surface of the screw portion is provided with an external thread. The screw portion is inserted into the internal thread hole provided on the calf support plate 16. The knob head of the second locking knob 27 is a circular structure and one end of the screw rod is coaxially fixedly connected to the knob head at the center of the knob head. The screw rod passes through the fourth avoidance groove 34 and is inserted into the internal threaded hole of the calf support plate 16. The diameter of the knob head is larger than the width of the fourth avoidance groove 34 and smaller than the length of the fourth avoidance groove 34. The knob head is located outside the transverse support plate 35 and the calf support plate 16 for easy screwing. When the second locking knob 27 is loosened, the second locking knob 27 can move in the fourth avoidance groove 34 along the length direction of the fourth avoidance groove 34, and the depth of the transverse support plate 35 inserted into the third slide groove 31 can be adjusted, that is, the distance between the upper support plate and the calf support plate 16 can be adjusted, thereby realizing the adjustment of the position of the load-reducing device and ensuring the accuracy of the treatment; when the knob is tightened, the knob head of the second locking knob 27 presses the transverse support plate 35 against the calf support plate 16, thereby fixing the transverse support plate 35 and the calf support plate 16.

[0053] like Figure 1 As shown, the opposite ends of the transverse support plate 35 are connected by a strap 23, and the strap is arranged opposite to the upper support plate. The strap 23 is an elastic strap. When in use, the strap 23 is located in front of the human calf.

[0054] like Fig.11As shown, the two calf support plates 16 are connected by a balance belt 36, and the two ends of the balance belt 36 are respectively connected to the two calf support plates 16. The balance belt 36 is an elastic strap. When in use, the balance belt 36 is located behind the human calf and above the upper cover plate 6.

[0055] like Figure 1 As shown, the human calf support device of the present invention also includes a front traction belt 24 and a rear traction belt 25 connected to the two thigh support plates 15. The front traction belt 24 and the rear traction belt 25 are arranged relative to each other. The two ends of the front traction belt 24 are respectively connected to one end of the upper guard plate of the two thigh support plates 15, and the two ends of the rear traction belt 25 are respectively connected to the other end of the upper guard plate of the two thigh support plates 15. The front traction belt 24 is located above the strap 23, and the rear traction belt 25 is located above the balance belt 36. The front traction belt 24 and the rear traction belt 25 are both elastic straps, which cooperate with the two thigh support plates 15 to form a trumpet-shaped lifting force ring structure around the human thigh, with large friction. When the knee joint is flexed, the power of the load-reducing device causes the lifting force ring to relax and return. When the knee joint is in an upright position, the lifting force ring rises and tightens, pushing the thigh with friction to generate a lifting force, which helps to improve the treatment effect.

[0056] like Figure 1 and Fig.12 As shown, a lifting plate can be provided on the front traction belt 24, and the lifting plate is used to contact the patient's thigh. A lifting plate can also be provided on the rear traction belt 25, and the lifting plate is used to contact the patient's thigh. The lifting plate is made of engineering plastic material, and preferably made of PE and other materials. After adding the lifting plate, the device is worn on the human body in a standing position, and a relatively complete trumpet-shaped binding ring structure can be formed on the thigh, and it can remain stable and unchanged. When the knee joint is flexed, the trumpet-shaped binding ring structure formed by connecting the thigh support plate, the lifting plate, the front traction belt 24 and the rear traction belt 25 is pulled downward and relaxed. When the knee joint is straightened again, the trumpet-shaped binding ring structure is pulled up and tightened, generating a lifting force on the thigh. Due to the integrity of the trumpet-shaped binding ring structure, the problem of insufficient lifting force of the original trumpet binding ring can be fully solved during walking.

[0057] like Figure 2a and Figure 2b As shown, the human calf support device of the present invention also includes a second buffer block 37 for providing elastic support to the support frame and a third buffer block 19 for contacting the thigh support plate and for elastically limiting the thigh support plate during the change of the angle between the thigh support plate and the calf support plate. The second buffer block 37 and the third buffer block 19 are arranged on the calf support plate and are made of energy-absorbing material.

[0058] like Figure 2a and Figure 2b As shown, the second buffer block 37 is preferably made of polyurethane material. The second buffer block 37 is located below the first support portion 7, and the second buffer block 37 is located between the two second support portions 8 connected to the first support portion 7. The second buffer block 37 is fixedly arranged on the calf support plate, and the first support portion 7 is located between the second buffer block 37 and the thigh support plate 15.

[0059] In the process of gradually decreasing the angle between the thigh support plate and the calf support plate (the angle refers to the angle between the length direction of the thigh support plate and the length direction of the calf support plate), under the action of the first magnet and the second magnet, the support frame moves upward, and the first support part 7 is separated from the second buffer block 37. At this time, the second buffer block 37 cannot provide elastic support for the support frame; in the process of gradually increasing the angle between the thigh support plate and the calf support plate, the support frame moves downward. When the first support part 7 contacts the second buffer block 37, the second buffer block 37 is compressed, and the second buffer block 37 provides an upward elastic support force to the support frame. The elastic support force is also transmitted to the thigh support plate, forming a better support for the thigh support plate, facilitating the transmission of force and avoiding the concentration of load. When the support device is in an upright position as a whole, the angle between the thigh support plate and the calf support plate is at the maximum state, and the compression amount of the second buffer block 37 is the maximum. A second buffer block 37 is provided to cooperate with the magnet to form a function similar to the meniscus of the human knee joint, dispersing the compressive stress to the tibial platform, i.e., the external meniscus, receiving the gravity from the thigh and dispersing it to the ground through the first buffer block 5; and conducting and exchanging it through the support pad to reduce the compressive stress of the knee joint.

[0060] like Figure 2a and Figure 2b As shown, the third buffer block 19 is preferably made of polyurethane material. The third buffer block 19 is arranged on the calf support plate, and the height of the third buffer block 19 is greater than the lower end of the thigh support plate 15 (that is, the lower end of the rotating plate 30) and the height of the horizontal axis 13, and the third buffer block 19 is located on one side of the thigh support plate 15.

[0061] During the bending process of the knee joint, that is, when the angle between the thigh support plate and the calf support plate gradually decreases, the lower end of the thigh support plate rotates upward, and the lower end of the thigh support plate gradually approaches the third buffer block 19. During the gradual decrease of the angle between the thigh support plate and the calf support plate, the third buffer block 19 contacts the thigh support plate, and the third buffer block 19 is in a compressed state. The third buffer block 19 contacts the thigh support plate when the human knee joint is in a flexed position, and the third buffer block 19 is in a compressed state, which plays an elastic limiting role on the thigh support plate.

[0062] During the straightening of the knee joint, when the supporting device is in an upright position as a whole, the angle between the thigh support plate and the calf support plate is at its maximum state, and the third buffer block 19 is also in a compressed state, which plays an elastic limiting role on the thigh support plate, thereby generating lateral resistance, buffering the impact force of the patellofemoral joint through force conduction, and compensating for the reaction force of the patellofemoral joint. The third buffer block 19 is set up to generate an elastic limiting effect during the straightening of the knee joint, which can compensate for the reaction force of the patellofemoral joint, and the manufacturing process is simple and reasonable. Moreover, the third buffer block 19 can form an integral effect with the first buffer block, the lower limit block and the elastically supported support pad, which helps to improve the treatment effect.

[0063] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A human calf support device, comprising a main support plate and a foot support plate, characterized in that: It also includes a first buffer block disposed on the foot support plate and used to provide elastic support to the main support plate; The human calf support device also includes a thigh support plate, a calf support plate, a return mechanism for providing support for the thigh support plate, and a transverse axis arranged on the calf support plate, the thigh support plate has a first slide groove for inserting the transverse axis, the return mechanism includes a first magnet, a second magnet, and a support frame that is movably arranged and in contact with the thigh support plate, the second magnet is located between the first magnet and the support frame, and the like magnetic poles of the first magnet and the second magnet are arranged oppositely, and the calf support plate has a guide groove for accommodating the first magnet and the second magnet; The guide grooves are provided in plurality, and each guide groove is provided with a first magnet and a second magnet respectively, the support frame is located between the second magnet and the thigh support plate, and the length direction of the guide groove is parallel to the length direction of the calf support plate; Two of the first magnet and the second magnet are provided, two of the guide grooves are provided, and the support frame is a U-shaped structure. The support frame includes a first support portion in contact with the thigh support plate and two second support portions connected to the first support portion, each second support portion is respectively inserted into a guide groove and each second support portion is respectively in contact with a second magnet.

2. The human calf support device according to claim 1, characterized in that: The first buffer block is made of energy-absorbing material.

3. The human calf support device according to claim 1, characterized in that: It also includes a support pad for providing elastic support to the foot support plate and / or the human foot, and the support pad is made of energy-absorbing material.

4. The human calf support device according to any one of claims 1 to 3, characterized in that: It also includes a front traction belt and a rear traction belt connected to the two thigh support plates, the front traction belt and the rear traction belt are arranged relatively to each other, the two ends of the front traction belt are respectively connected to one end of the two thigh support plates, and the two ends of the rear traction belt are respectively connected to the other end of the two thigh support plates; the front traction belt and the rear traction belt are both provided with lift plates; the thigh support plate includes an upper guard plate and an inner pad arranged on the upper guard plate, the upper guard plate includes a guard plate body and a step-shaped limiting structure arranged on the guard plate body, and the step-shaped limiting structure is located between the guard plate body and the inner pad.

5. The human calf support device according to claim 4, characterized in that: The step-shaped limiting structure includes a limiting protrusion arranged on the guard plate body, and a plurality of limiting protrusions are provided and all of the limiting protrusions are arranged in sequence along the length direction of the guard plate body. The limiting protrusion includes a first upper limit surface and a second upper limit surface. The first end of the first upper limit surface is connected to the guard plate body, the second end of the first upper limit surface is connected to the first end of the second upper limit surface, the second end of the second upper limit surface is connected to the guard plate body, there is a distance between the second end of the first upper limit surface and the guard plate body, and the first upper limit surface of the same first limiting protrusion is located above the second upper limit surface.

6. The human calf support device according to any one of claims 1 to 3, characterized in that: The main support plate includes a lower limit block that cooperates with the first buffer block. The first buffer block is located below the lower limit block and is made of polyurethane material. When the first buffer block contacts the lower limit block, the first buffer block can convert the absorbed impact force into an elastic supporting force for the lower limit block.

7. The human calf support device according to any one of claims 1 to 3, characterized in that: It also includes a second buffer block for providing elastic support to the support frame and a third buffer block for contacting the thigh support plate and for elastically limiting the thigh support plate during the change of the angle between the thigh support plate and the calf support plate. The second buffer block and the third buffer block are arranged on the calf support plate and are made of energy-absorbing material.

8. The human calf support device according to any one of claims 1 to 3, characterized in that: The top surface of the first supporting part is in contact with the bottom surface of the thigh supporting plate. The top surface of the first supporting part is an arc surface, and the bottom surface of the thigh supporting plate is also an arc surface.

9. The human calf support device according to any one of claims 1 to 3, characterized in that: The first slide groove is an arc-shaped groove, and the third magnet and the fourth magnet are arranged in the first slide groove, the fourth magnet is located between the third magnet and the horizontal axis, the like magnetic poles of the third magnet and the fourth magnet are arranged opposite to each other, the axis of the first slide groove is parallel to the axis of the horizontal axis, and the arc of the first slide groove is less than 180 degrees.

10. The human calf support device according to claim 4, characterized in that: The thigh support plate includes a rotating plate fixedly connected to the guard plate body, the rotating plate is located below the guard plate body, the upper end of the rotating plate is fixedly connected to the lower end of the guard plate body, the lower end of the rotating plate is rotatably connected to the calf support plate and the lower end of the rotating plate is inserted into the inner cavity of the calf support plate, the first slide groove is arranged on the rotating plate, the support frame is located below the rotating plate, and the top surface of the first support portion is in contact with the bottom surface of the rotating plate.

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