Lower limb rehabilitation brace

Abstract

The utility model discloses a lower limb rehabilitation brace. The lower limb rehabilitation brace comprises a fixed part, an outer rotating shaft joint and an inner rotating shaft joint, wherein the fixing part is divided into an outer upper fixing plate, an outer lower fixing plate, an inner upper fixing plate, an inner lower fixing plate and a foot fixing plate; the outer upper fixing plate is matched with the inner upper fixing plate, the outer lower fixing plate is matched with the inner lower fixing plate, and the foot fixing plate is matched with the outer lower fixing plate and the inner lower fixing plate; the upper end and the lower end of the outer rotating shaft joint are adjustably and fixedly connected with the outer upper fixing plate and the outer lower fixing plate respectively; and the upper end and the lower end of the inner rotating shaft joint are adjustably and fixedly connected with the inner upper fixing plate and the inner lower fixing plate respectively. According to the lower limb rehabilitation brace, full wrapping from the leg to the foot can be achieved, matching and fixing of a patient are met to the maximum extent, and the inner joint and the outer joint are designed, so that the strength of the joint portions is enhanced, and meanwhile the fixing function of a specific function angle or the joint movement function within a specific angle range can be achieved.

Description

Technical Field

[0001] The utility model relates to a rehabilitation device, in particular to a lower limb rehabilitation brace. Background Art

[0002] The lower limb rehabilitation brace is an auxiliary tool used for postoperative rehabilitation treatment of lower limb deformity, injury or fracture. It helps patients relieve pain, promote wound healing and restore joint function by providing necessary fixation, support and protection.

[0003] At present, rehabilitation braces are mainly divided into fixed braces and functional braces to meet the needs of patients at different stages. For this reason, patients need to wear fixed braces after surgery, and after recovery to a certain stage, they need to change to functional braces for exercise and strength recovery training, etc. This requires patients to customize or purchase corresponding braces at different stages for rehabilitation treatment, which invisibly increases the cost of rehabilitation.

[0004] Traditional fixation braces are mainly made of plaster or low-temperature thermoplastic plates. Long-term wearing can easily cause symptoms such as stuffy skin and allergies. Although the existing mainstream functional rehabilitation braces can meet the training activity requirements of the rehabilitation stage, this series of products are generally universal models with poor patient matching, which can easily cause fixation failure and poor rehabilitation effect. Although conventional 3D printed customized braces have a high degree of patient matching, they have a single function and only play a role in early fixation. They cannot meet the needs of later joint activities and are therefore more limited in use. Utility Model Content

[0005] The purpose of the utility model is to provide a lower limb rehabilitation brace, which solves the problem of single function of existing braces. It can not only be used to fix the limbs, but also ensure movement within a certain range, and achieve full coverage from the legs to the feet, which can meet the matching and fixation of patients to the greatest extent. The internal and external double joint design can strengthen the strength of the joints while also meeting the fixation of specific functional angles or the joint movement function within a specific angle range.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a lower limb rehabilitation brace, which comprises: a fixing part, an outer rotation axis joint and an inner rotation axis joint; wherein the fixing part is divided into an outer upper fixing plate, an outer lower fixing plate, an inner upper fixing plate, an inner lower fixing plate and a foot fixing plate; the outer upper fixing plate and the inner upper fixing plate cooperate with each other to fit the thigh part of the user; the outer lower fixing plate and the inner lower fixing plate cooperate with each other and are respectively located below the outer upper fixing plate and the inner upper fixing plate to fit the calf part of the user; the foot fixing plate cooperates with the outer lower fixing plate and the inner lower fixing plate to fit the foot of the user; the upper end and the lower end of the outer rotation axis joint are respectively connected to the outer upper fixing plate and the outer lower fixing plate. The plate is adjustably fixedly connected; the upper end and the lower end of the inner shaft joint are adjustably fixedly connected to the inner upper fixing plate and the inner lower fixing plate respectively; the outer shaft joint and the inner shaft joint both comprise: a shaft assembly and a shaft cover assembly; the shaft cover assembly is arranged in the middle of the shaft assembly; the shaft assembly comprises: a first joint arm, a second joint arm, an adjusting disk, a first locking piece and a positioning guide column; wherein the adjusting disk, the head end of the first joint arm and the head end of the second joint arm are sequentially overlapped and coaxially rotated; the first locking piece is limited on the first joint arm and can move up and down along the surface of the first joint arm; the adjusting disk and the positioning guide column are in the space surrounded by the shaft cover assembly and the head end of the first joint arm; the outer shaft The tail end of the first joint arm of the joint or the tail end of the second joint arm is adjustably fixedly connected to the outer upper fixing plate or the outer lower fixing plate, and the tail end of the first joint arm of the inner rotation axis joint or the tail end of the second joint arm is adjustably fixedly connected to the inner upper fixing plate or the inner lower fixing plate; the end of the first locking piece is provided with a second fixing tooth, and the edge of the adjusting disk is provided with a second limiting tooth meshing with the second fixing tooth; the head end surface of the first joint arm is provided with: a first rotation axis hole and a first rotation limiting groove; the head end of the second joint arm is provided with: a rotation axis and a rotation limiting column; the surface of the adjusting disk is provided with: a second rotation axis hole and a second rotation limiting groove; the second rotation axis hole is located at the center of the surface of the adjusting disk and is connected to the The first rotating shaft hole corresponds; the positioning guide column is clamped in the second rotating shaft hole; the rotating shaft passes through the first rotating shaft hole and the second rotating shaft hole, and is fixedly connected to the positioning guide column; the second rotation limit slot corresponds to the first rotation limit slot, the first rotation limit slot and the second rotation limit slot are both arc-shaped long holes, and the rotation limit column is movably arranged in the first rotation limit slot and the second rotation limit slot; the edge of the adjusting disk is provided with: a second limit tooth and an adjusting handle; the second limit tooth is meshed with the second fixed tooth, and the adjusting handle is movably arranged on the side of the rotating shaft cover assembly; the circumference of the second rotating shaft hole of the adjusting disk is provided with a third limit tooth, and the third limit tooth is meshed and connected with the second locking piece of the rotating shaft cover assembly;The shaft cover assembly comprises: a shaft cover, a locking knob, a second locking member, a limiting ring and a locking push button; wherein the shaft cover is arranged at the head end of the first joint arm, the adjusting disk and the positioning guide column are in the space surrounded by the shaft cover and the first joint arm; the locking knob is arranged on the shaft cover, the locking knob is threadedly connected with the second locking member, and the positioning guide column is clamped on the second locking member; the limiting ring is sleeved on the locking knob and fixed on the shaft cover; the locking push button is fixedly connected with the first locking member, and is used to drive the first locking member to move up and down along the surface of the first joint arm. ;

[0007] Preferably, the shaft cover is provided with: a knob hole and an adjustment handle slot; wherein, the knob hole is located on the shaft cover and corresponds to the second rotating shaft hole of the adjusting disk; the locking knob is arranged at the knob hole and is threadedly connected to the second locking member; the adjustment handle slot is located on the side of the shaft cover, and the adjustment handle of the adjusting disk is arranged therein and can move along the adjustment handle slot.

[0008] Preferably, the shaft cover is provided with a scale plate, which is arranged on the shaft cover and at the edge of the locking knob.

[0009] Preferably, the arc angle of the arc-shaped long holes of the first rotation limiting groove and the second rotation limiting groove is 120°.

[0010] Preferably, the first locking member is symmetrically provided with two connecting holes; the locking push button is provided with connecting columns corresponding to the connecting holes, and the connecting columns are fixed in the connecting holes.

[0011] Preferably, the surface of the first articulated arm is also provided with: a first guide column and a second guide column; the first locking member is provided with: a first guide groove corresponding to the first guide column, and a second guide groove corresponding to the second guide column; the second guide column can move along the second guide groove; the rotating shaft cover is provided with: a second fixing hole; the second fixing hole is fixedly connected to the first guide column of the first articulated arm.

[0012] Preferably, the adjusting disk and the first locking piece are both arranged in the space enclosed by the rotating shaft cover assembly and the head end of the first joint arm; the locking knob and the locking push button are both arranged on the rotating shaft cover; the rotating shaft cover is provided with: a locking switching groove, which corresponds to the first locking piece; the locking push button is provided with: a locking column, which is arranged in the locking switching groove and can move along the locking switching groove.

[0013] Preferably, the bottom end of the positioning guide column is provided with a hexagonal positioning groove, and the top end is a bolt hole; the center of the hexagonal positioning groove is provided with a positioning hole connected to the bolt hole; a hexagonal positioning column is fixed to the end of the rotating shaft, and the hexagonal positioning column is adapted to the hexagonal positioning groove, and is arranged in the hexagonal positioning groove and fixed by bolts; the outer wall of the positioning guide column is evenly provided with a third guide groove along the axial direction, and the center of the second locking piece is provided with a through guide hole along its axial direction, and a plurality of third guide columns are provided on the inner wall of the guide hole along its extension direction, and the positioning guide column is arranged in the guide hole, and the third guide groove of the positioning guide column is adapted to the third guide column; a third fixing tooth is provided at the end of the guide hole, and the third fixing tooth is meshed with the third limiting tooth on the adjusting disk.

[0014] Preferably, the surfaces of the outer upper fixing plate, the outer lower fixing plate, the inner upper fixing plate and the inner lower fixing plate are also provided with: a fixing seat and a plurality of limiting fixing holes; the end of the first joint arm or the second joint arm of the outer rotating shaft joint is respectively arranged in the fixing seat of the outer upper fixing plate or the outer lower fixing plate; the end of the first joint arm or the second joint arm of the inner rotating shaft joint is respectively arranged in the fixing seat of the inner upper fixing plate or the inner lower fixing plate; the end surfaces of the first joint arm and the second joint arm are both provided with: a plurality of first fixing holes corresponding to the limiting fixing holes, and the fixing seat is fixedly connected to the end of the first joint arm or the second joint arm through the limiting fixing holes, the first fixing holes and the screws.

[0015] Preferably, the fixing seat has an adjustment limit groove; the limit fixing hole is in the adjustment limit groove, and the inner wall of the adjustment limit groove is symmetrically provided with: a first limit tooth, and a plurality of limit fixing holes and the first limit tooth are arranged along the extension direction of the adjustment limit groove; both sides of the ends of the first joint arm and the second joint arm are provided with: a first fixing tooth meshing with the first limit tooth, and the first fixing tooth meshes with the first limit tooth.

[0016] Preferably, the outer upper fixing plate, the outer lower fixing plate, the inner upper fixing plate, the inner lower fixing plate and the foot fixing plate are all provided with: a plurality of ventilation holes; the positions where the outer upper fixing plate and the inner upper fixing plate, the outer lower fixing plate and the inner lower fixing plate, the inner upper fixing plate and the inner lower fixing plate are connected to the foot fixing plate are all provided with: Velcro connection holes, and the Velcro connection holes are used for connecting and fixing the fixing plates to the limbs. Specifically, Velcro connection holes are provided on both sides of the outer upper fixing plate and the inner upper fixing plate, and on both sides of the outer lower fixing plate and the inner lower fixing plate. Velcro connection holes are provided on the lower ends of the outer lower fixing plate and the inner lower fixing plate and the upper end of the foot fixing plate.

[0017] Preferably, the Velcro connection hole is a strip-shaped hole.

[0018] Preferably, the spacing between adjacent limiting fixing holes and the spacing between adjacent first limiting teeth are both 10 mm.

[0019] Preferably, the spacing between adjacent first fixing holes and between adjacent first fixing teeth is 10 mm.

[0020] Preferably, the first guide column and the second guide column are located in the middle of the first joint arm; the first guide column is cylindrical, and a screw hole is arranged at its end along its axial direction; the second fixing hole corresponds to the screw hole on the first guide column of the first joint arm, and the shaft cover is fixed to the first joint arm by screws.

[0021] Preferably, the second guide column is in the shape of an elongated strip.

[0022] Preferably, the second limiting teeth are arranged in a circle with an angle of degrees, and the maximum arc is degrees.

[0023] Preferably, a gasket is provided between the positioning guide column and the second rotating shaft hole of the adjusting disk.

[0024] Preferably, the shaft cover is provided with: a limiting ring fixing hole, the limiting ring fixing holes are distributed around the knob hole, the limiting ring is sleeved on the locking knob, and the limiting ring is fixed to the shaft cover by screws cooperating with the limiting ring fixing holes.

[0025] Preferably, the pitch of the external thread of the guide hole is twice the height of the third fixed tooth.

[0026] Preferably, a status indicating arrow is fixedly provided on the top of the locking knob, and "fixed" and "active" marks are respectively engraved on both ends of the arrow.

[0027] Preferably, a first limiting platform is provided along the circumference of the outer side wall of the locking knob, and the limiting ring is sleeved on the locking knob to limit the first limiting platform of the locking knob.

[0028] Preferably, the limiting ring is provided with a second limiting platform along its inner circumference, and the second limiting platform is used to limit the first limiting platform of the locking knob.

[0029] Preferably, a mounting groove is provided at the bottom of the locking knob, and the mounting groove has an internal thread, and the internal thread matches the external thread of the second locking member.

[0030] Preferably, the limiting ring is provided with a third fixing hole along its circumference, and the limiting ring is fixed to the rotating shaft cover by screws cooperating with the third fixing hole.

[0031] Preferably, the outer upper fixing plate, the outer lower fixing plate, the inner upper fixing plate, the inner lower fixing plate and the foot fixing plate are all made of resin material and formed by 3D printing using additive technology.

[0032] Preferably, the shaft assembly is formed by metal material; the shaft cover assembly is made of resin material, which is not limited to 3D printing or traditional injection molding.

[0033] The lower limb rehabilitation brace of the utility model solves the problem of single function of existing braces and has the following advantages:

[0034] The lower limb rehabilitation brace of the utility model is composed of a fixed part and an inner and outer rotating shaft joint. The fixed part is modeled based on the patient's body surface data and 3D printed, which can achieve full coverage from the leg to the foot, and meet the patient's matching and fixation to the greatest extent; the inner and outer rotating shaft joint part is composed of a rotating shaft assembly and a rotating shaft cover assembly. Through the structural design of the rotating shaft assembly and the rotating shaft cover assembly, the fixation of a specific functional angle or the activity function within a specific angle range can be met, and the inner and outer double joint design can simultaneously enhance the strength of the joint part, so that a set of products can meet the use requirements of the entire rehabilitation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional structural diagram of the lower limb rehabilitation brace of the utility model.

[0036] Figure 2 It is a three-dimensional structural diagram of the outer rotating shaft joint of the utility model.

[0037] Figure 3 It is a three-dimensional structural diagram of the rotating shaft assembly of the utility model.

[0038] Figure 4 It is a three-dimensional structural diagram of the outer upper fixing plate of the utility model.

[0039] Figure 5 It is a three-dimensional structural diagram of the outer lower fixing plate of the utility model.

[0040] Figure 6 It is a three-dimensional structural diagram of the foot fixing plate of the present utility model.

[0041] Figure 7 It is a three-dimensional structural diagram of the first joint arm of the utility model.

[0042] Figure 8 It is a three-dimensional structural diagram of the second joint arm of the utility model.

[0043] Fig. 9 It is a three-dimensional structural diagram of the adjustment disk of the utility model.

[0044] Fig.10 It is a three-dimensional structural diagram of the first locking member of the utility model.

[0045] Fig.11It is a three-dimensional structural diagram of the positioning guide column of the utility model.

[0046] Fig.12 It is a three-dimensional structural diagram of the rotating shaft cover assembly of the utility model.

[0047] Fig.13 It is a three-dimensional structural diagram of the rotating shaft cover of the utility model.

[0048] Fig.14 It is a three-dimensional structural diagram of the second locking member of the utility model.

[0049] Fig.15 It is a three-dimensional structural diagram of the locking knob of the utility model.

[0050] Fig.16 It is a three-dimensional structural diagram of the limiting ring of the utility model.

[0051] Fig.17 It is a three-dimensional structural diagram of the locking push button of the utility model. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Example 1

[0054] A lower limb rehabilitation brace, see Figures 1 to 17 , comprising: a fixing part 100, an outer rotation axis joint 200 and an inner rotation axis joint 300. Among them, the outer upper fixing plate 110, the outer lower fixing plate 120, the inner upper fixing plate 130, the inner lower fixing plate 140 and the foot fixing plate 150, the outer upper fixing plate 110 and the inner upper fixing plate 130 cooperate with each other to fit with the thigh part of the user; the outer lower fixing plate 120 and the inner lower fixing plate 140 cooperate with each other and are respectively located below the outer upper fixing plate 110 and the inner upper fixing plate 130 to fit with the calf part of the user; the foot fixing plate 150 cooperates with the outer lower fixing plate 120 and the inner lower fixing plate 140 to fit with the foot of the user. The upper end and the lower end of the outer rotation axis joint 200 are respectively adjustably fixedly connected to the outer upper fixing plate 110 and the outer lower fixing plate 120; the upper end and the lower end of the inner rotation axis joint 300 are respectively adjustably fixedly connected to the inner upper fixing plate 130 and the inner lower fixing plate 140.

[0055] The surfaces of the outer upper fixing plate 110, the outer lower fixing plate 120, the inner upper fixing plate 130, the inner lower fixing plate 140 and the foot fixing plate 150 are all provided with: a plurality of ventilation holes 111, so that the outer upper fixing plate 110, the outer lower fixing plate 120, the inner upper fixing plate 130, the inner lower fixing plate 140 and the foot fixing plate 150 have good ventilation performance and aesthetics. The surfaces of the outer upper fixing plate 110, the outer lower fixing plate 120, the inner upper fixing plate 130 and the inner lower fixing plate 140 are also provided with: a fixing seat 112 and a plurality of position-limiting fixing holes 113. The ends of the first joint arm 211 or the second joint arm 212 of the outer rotating shaft joint 200 are respectively arranged in the fixing seat 112 of the outer upper fixing plate 110 or the outer lower fixing plate 120; the ends of the first joint arm 211 or the second joint arm 212 of the inner rotating shaft joint 300 are respectively arranged in the fixing seat 112 of the inner upper fixing plate 130 or the inner lower fixing plate 140. The fixing seat 112 is provided with an adjustment position-limiting groove 114. The position-limiting fixing hole 113 is located in the adjustment position-limiting groove 114. The inner wall of the adjustment position-limiting groove 114 is symmetrically provided with: a first position-limiting tooth 115. The plurality of position-limiting fixing holes 113 and the first position-limiting tooth 115 are both arranged along the extension direction of the adjustment position-limiting groove 114. The fixing seats 112 of the outer upper fixing plate 110 and the outer lower fixing plate 120, the inner upper fixing plate 130 and the inner lower fixing plate 140 are respectively limited with the outer shaft joint 200 and the inner shaft joint 300 through the first limiting teeth 115, and the fixing seats 112 of the outer upper fixing plate 110 and the outer lower fixing plate 120, the inner upper fixing plate 130 and the inner lower fixing plate 140 are respectively fixedly connected with the outer shaft joint 200 and the inner shaft joint 300 through the limiting fixing holes 113 and the screws, and the tooth-shaped limiting can not only increase the fixing stability, but also realize the adjustment of the fixing distance. The positions where the outer upper fixing plate 110 and the inner upper fixing plate 130, the outer lower fixing plate 120 and the inner lower fixing plate 140, and the inner upper fixing plate 130 and the inner lower fixing plate 140 are connected to the foot fixing plate 150 are all provided with: Velcro connection holes 116, and the Velcro connection holes 116 are used for connecting and fixing between the fixing plate and the limbs.

[0056] Specifically, both sides of the outer upper fixing plate 110 and the inner upper fixing plate 130, and both sides of the outer lower fixing plate 120 and the inner lower fixing plate 140 are provided with Velcro connection holes 116. The lower ends of the outer lower fixing plate 120 and the inner lower fixing plate 140 and the upper end of the foot fixing plate 150 are provided with Velcro connection holes 116.

[0057] Specifically, the Velcro connection hole 116 is a strip-shaped hole.

[0058] Specifically, the spacing between adjacent limiting fixing holes 113 and the spacing between adjacent first limiting teeth 115 are both 10 mm.

[0059] The outer shaft joint 200 and the inner shaft joint 300 both include: a shaft assembly 210 and a shaft cover assembly 220. The shaft cover assembly 220 is disposed in the middle of the shaft assembly 210, and the upper and lower ends of the shaft assembly 210 both have first fixed teeth 2112, which mesh with the first limiting teeth 115 of the upper and lower fixing plates.

[0060] The above-mentioned rotating shaft assembly 210 includes: a first joint arm 211, a second joint arm 212, an adjustment disk 213, a first locking member 214 and a positioning guide column 215. Among them, the adjustment disk 213, the head end of the first joint arm 211 and the head end of the second joint arm 212 are stacked in sequence and rotate coaxially. The first locking member 214 is limited on the first joint arm 211 and can move up and down along the surface of the first joint arm 211. The adjustment disk 213 and the positioning guide column 215 are arranged in the space surrounded by the rotating shaft cover assembly 220 and the head end of the first joint arm 211. The tail end of the first joint arm 211 or the tail end of the second joint arm 212 of the outer rotating shaft joint 200 is adjustably fixedly connected to the outer upper fixing plate 110 or the outer lower fixing plate 120. The end of the first locking member 214 is provided with a second fixing tooth 2141, and the edge of the adjustment disk 213 is provided with a second limiting tooth 2131 meshing with the second fixing tooth 2141. The bottom end of the positioning guide column 215 is provided with a hexagonal positioning groove 2151, the top end is a bolt hole, the center of the hexagonal positioning groove 2151 is provided with a positioning hole 2151a connected to the bolt hole, and the outer side wall of the positioning guide column 215 is evenly provided with third guide grooves 2151b along the axial direction, and the third guide grooves 2151b are matched with the second locking member 223 of the rotating shaft cover assembly 220. The positioning guide column 215 is set at the center of the adjustment disk 213.

[0061] The end surfaces of the first joint arm 211 and the second joint arm 212 are both provided with: a plurality of first fixing holes 2111 corresponding to the limiting fixing holes 113, and the ends of the first joint arm 211 and the second joint arm 212 are both provided with: first fixing teeth 2112 meshing with the first limiting teeth 115, and the surface of the first joint arm 211 is also provided with: a first guide column 2113 and a second guide column 2114, both of which cooperate with the first locking member 214 to play a fixing and guiding role. The first locking member 214 is provided with: a first guide groove 2142 corresponding to the first guide column 2113, and a second guide groove 2143 corresponding to the second guide column 2114. The second guide column 2114 can move along the second guide groove 2143, so as to achieve locking or unlocking of the adjustment disk 213. The first end surface of the first joint arm 211 is provided with: a first rotation axis hole 2115 and a first rotation limiting groove 2116, and the first end of the second joint arm 212 is provided with: a rotation axis 2121 and a rotation limiting column 2122. The rotation axis 2121 passes through the first rotation axis hole 2115, and a hexagonal positioning column 2121a is fixed at the end of the rotation axis 2121. The hexagonal positioning column 2121a is adapted to the hexagonal positioning groove 2151. The hexagonal positioning column 2121a is arranged in the hexagonal positioning groove 2151 and fixed by bolts to prevent the second joint arm 212 from rotating itself. The rotation limiting column 2122 is movably arranged in the first rotation limiting groove 2116. The first joint arm 211 and the second joint arm 212 are connected to the first rotation axis hole 2115 through the rotation axis 2121, and the rotation limiting column 2122 cooperates with the first rotation limiting groove 2116 to achieve a rotation range of 0 to 120 degrees.

[0062] The first locking member 214 is further provided with: a connecting hole 2144 , two of which may be symmetrically provided, and the connecting hole 2144 is fixedly connected to the locking push button 225 on the rotating shaft cover assembly 220 .

[0063] Specifically, the spacing between adjacent first fixing holes 2111 and between adjacent first fixing teeth 2112 is 10 mm, and the first fixing holes 2111 cooperate with the limiting fixing holes 113 of the fixing plate and are fixed with screws.

[0064] Specifically, the first guide post 2113 and the second guide post 2114 are located in the middle of the first joint arm 211 . The first guide post 2113 is cylindrical, and a screw hole 2113 a is provided at its end along its axial direction. The second guide post 2114 is in an elongated strip shape.

[0065] The surface of the adjusting disk 213 is provided with: a second rotating shaft hole 2132 and a second rotating limit groove 2133. The second rotating shaft hole 2132 is located at the center of the surface of the adjusting disk 213 and corresponds to the first rotating shaft hole 2115. The positioning guide column 215 is clamped in the second rotating shaft hole 2132. The rotating shaft 2121 passes through the first rotating shaft hole 2115 and the second rotating shaft hole 2132, and is fixedly connected to the positioning guide column 215. The second rotating limit groove 2133 corresponds to the first rotating limit groove 2116. The first rotating limit groove 2116 and the second rotating limit groove 2133 are both arc-shaped long holes with an arc of 120°. The rotating limit column 2122 is movably arranged in the first rotating limit groove 2116 and the second rotating limit groove 2133. The edge of the adjusting disk 213 is provided with: a second limiting tooth 2131 and an adjusting handle 2134, the second limiting tooth 2131 is meshed with the second fixed tooth 2141, and the adjusting handle 2134 is movably arranged on the side of the rotating shaft cover assembly 220. The circumference of the second rotating shaft hole 2132 of the adjusting disk 213 is provided with a third limiting tooth 2132a, and the third limiting tooth 2132a is meshed and connected with the second locking member 223 of the rotating shaft cover assembly 220.

[0066] Specifically, the second limiting teeth 2131 are arranged in a circle with an angle of 10 degrees, and the arrangement range is 120 degrees. The second limiting teeth 2131 cooperate with the first locking member 214 to achieve an angle adjustment of 0 to 120 degrees, and the adjustment unit is 10 degrees.

[0067] Specifically, a gasket 2152 is provided between the positioning guide column 215 and the second rotating shaft hole 2132 of the adjusting disk 213 to prevent rotational wear between parts and reduce rotational resistance.

[0068] The above-mentioned shaft cover assembly 220 includes: a shaft cover 221, a locking knob 222, a second locking member 223, a limiting ring 224 and a locking push button 225. The shaft cover 221 is arranged at the head end of the first joint arm 211, and the shaft assembly 210 is located in the space enclosed by the shaft cover 221 and the first joint arm 211. The locking knob 222 and the locking push button 225 are both arranged on the shaft cover 221, the locking knob 222 is threadedly connected with the second locking member 223, and the second locking member 223 cooperates with the third guide groove 2151b, so that the second joint arm 212 is driven to rotate by rotating the locking knob 222. The limiting ring 224 is sleeved on the locking knob 222 and fixed on the shaft cover 221. The locking push button 225 is cooperatively connected with the connecting hole 2144 of the first locking member 214.

[0069] The rotating shaft cover 221 is provided with: a second fixing hole 2211, a scale plate 2212, a knob hole 2213, a locking switching groove 2214, a stop ring fixing hole 2215 and an adjusting handle sliding groove 2216. Among them, the second fixing hole 2211 corresponds to the screw hole 2113a on the first guide column 2113 of the first joint arm 211, and the rotating shaft cover 221 is fixed to the first joint arm 211 by screws. The locking switching groove 2214 corresponds to the second guide groove 2143 and the connecting hole 2144 of the first locking member 214, and the locking push button 225 is arranged in the locking switching groove 2214 and can move along the locking switching groove 2214. The knob hole 2213 is located at the center of the rotating shaft cover 221, corresponding to the second rotating shaft hole 2132 of the adjusting plate 213, and the locking knob 222 is arranged at the knob hole 2213 and is threadedly connected with the second locking member 223. The limiting ring fixing holes 2215 are arranged around the knob hole 2213, and the limiting ring 224 is sleeved on the locking knob 222. The limiting ring 224 is fixed to the shaft cover 221 by screws and the limiting ring fixing holes 2215. The dial 2212 is set on the shaft cover 221 and is located at the edge of the locking knob 222. The dial 2212 is provided with 0 to 120 degree markings. The adjusting handle slot 2216 is located on the side of the shaft cover 221, and the adjusting handle 2134 of the adjusting disk 213 is set therein and can move along the adjusting handle slot 2216.

[0070] Specifically, the locking push button 225 is provided with a locking column 2251 and two connecting columns 2252. The locking column 2251 is disposed in the locking switching groove 2214 and can move along the locking switching groove 2214. The connecting column 2252 passes through the locking switching groove 2214 and is fixed in the connecting hole 2144 of the first locking member 214.

[0071] Specifically, a through guide hole 2231 is provided at the center of the second locking member 223 along its axial direction, and a plurality of third guide posts 2231a are provided on the inner side wall of the guide hole 2231 along its extension direction, and the positioning guide post 215 is arranged in the guide hole 2231, and the third guide groove 2151b of the positioning guide post 215 is adapted to the third guide post 2231a. An external thread is provided on the outer side wall of the second locking member 223, and the locking knob 222 is threadedly connected through the external thread. A third fixing tooth 2231b is provided at the end of the guide hole 2231, and the third fixing tooth 2231b is meshed with the third limiting tooth 2132a on the adjusting disk 213.

[0072] More specifically, the pitch of the external thread of the guide hole 2231 is twice the height of the third fixed tooth 2231b. The second locking member 223 and the locking knob 222 are connected by threads, and the two arrows on the locking knob 222 correspond to the two states of "fixed" or "active", and there is 180 degrees between "fixed" and "active". The initial position is a fixed state. When the locking knob 222 rotates half a circle in the direction of the "active" arrow, the internal second locking member 223 moves upward by the height of 1 / 2 pitch, and the height of the third fixed tooth 2231b is also set to 1 / 2 pitch, then it just breaks away from the lock and realizes the active function. Similarly, when the locking knob 222 is rotated half a circle in the direction of the "fixed" arrow, the internal second locking member 223 moves downward by the height of 1 / 2 pitch, that is, the third fixed tooth 2231b and the third limit tooth 2132a on the adjusting disk 213 just bite. Due to the overall height limitation of the second locking member 223 , the upward and downward movement space thereof is only half the height of the pitch, so the rotation range of the locking knob 222 is also only half a circle.

[0073] Specifically, the top of the locking knob 222 is fixedly provided with a status indication arrow, and the two ends of the arrow are respectively engraved with "fixed" and "active" marks. The outer wall of the locking knob 222 is provided with a first limit platform 2221 along the circumference, and the limit ring 224 is sleeved on the locking knob 222 and limits the first limit platform 2221 of the locking knob 222. The bottom of the locking knob 222 is provided with a mounting groove 2222, and the mounting groove 2222 has an internal thread, and the internal thread matches the external thread of the second locking member 223.

[0074] Specifically, the limiting ring 224 is provided along its inner circumference with: a second limiting platform 2241 , and the second limiting platform 2241 is used to limit the first limiting platform 2221 of the locking knob 222 .

[0075] Specifically, the limiting ring 224 is provided with a third fixing hole 2242 along its circumference, and the limiting ring 224 is fixed to the rotating shaft cover 221 by screws engaging with the third fixing hole 2242 .

[0076] Specifically, the outer upper fixing plate 110, the outer lower fixing plate 120, the inner upper fixing plate 130, the inner lower fixing plate 140 and the foot fixing plate 150 are all made of resin material and are formed by 3D printing using additive technology to meet individual customization needs. The shaft assembly 210 is formed by metal material. The shaft cover assembly 220 is made of resin material and is not limited to 3D printing or traditional injection molding.

[0077] The method of using the lower limb rehabilitation brace of the utility model is as follows:

[0078] The fixing teeth of the outer upper fixing plate 110 and the outer lower fixing plate 120 are matched with the limiting teeth on the first joint arm 211 and the second joint arm 212 of the outer rotating shaft joint 200 respectively, and the fixing teeth of the inner upper fixing plate 130 and the inner lower fixing plate 140 are matched with the limiting teeth on the first joint arm 211 and the second joint arm 212 of the inner rotating shaft joint 300 respectively to form a limiting relationship, and then fixed by screws.

[0079] The outer upper fixing plate 110 and the outer lower fixing plate 120 are fitted to the user's thigh, the inner upper fixing plate 130 and the inner lower fixing plate 140 are fitted to the user's calf, the foot fixing plate 150 is fitted to the user's foot, the inner rotation axis joint 300 and the outer rotation axis joint 200 are respectively placed at the inner and outer sides of the knee joint, and Velcro is used to cooperate with the Velcro connecting hole 116 to fix the brace to the user's lower limbs.

[0080] If the wearing position is not suitable, the screws in the fixing holes of the first and second joint arms 212 can be released, and the joint arms and the fixing plates can be adjusted up and down and then re-fixed, with the adjustment unit being 10 mm each time.

[0081] The initial position of the locking knob 222 is "fixed", and the initial position of the adjusting handle 2134 is "0 degrees". At this time, the outer shaft joint 200 and the inner shaft joint 300 are in a fixed state of 0 degrees. The locking push button 225 is adjusted to move toward the tail end of the first joint arm 211, and the locking push button 225 drives the first locking member 214 to move toward the tail end of the first joint arm 211, so that the meshing state of the second fixing tooth 2141 of the first locking member 214 and the second limiting tooth 2131 of the adjusting disk 213 is released, that is, the locking state of the upper and lower joints is released. At this time, by toggling the adjusting handle 2134, the adjusting handle 2134 drives the adjusting disk 213 to rotate, and the third limiting tooth 2132a on the adjusting disk 213 is meshed with the third fixing tooth 2231b on the second locking member 223. The adjusting disk 213 will drive the second locking member 223 to rotate, and the second locking member 223 drives the positioning guide column 215 to rotate, thereby driving the second joint arm 212 fixedly connected to the positioning guide column 215 to rotate, so as to realize 0 to 120 degrees of free movement of the knee joint. When the adjusting handle 2134 is aligned with any degree in the range of 0 to 120 of the scale of the shaft cover 221, the locking button 225 is adjusted downward to make the second fixing tooth 2141 of the first locking member 214 and the second limiting tooth 2131 of the adjusting disk 213 in meshing state, that is, the angle state is locked.

[0082] When the outer shaft joint 200 and the inner shaft joint 300 are in a locked state at a certain angle, the third fixed tooth 2231b on the second locking member 223 and the third limiting tooth 2132a on the adjusting disk 213 are in a meshing state, and the second locking member 223 and the positioning guide column 215 are locked with each other, and the positioning guide column 215 is fixed to the second joint arm 212, that is, it can be understood that the second locking member 223, the adjusting disk 213 and the second joint arm 212 are fixed to each other; the first locking member 214 is located on the first joint arm 211, and is combined with the second fixed tooth 2141 and the second limiting tooth 2131 on the adjusting disk 213. When the two are meshed, the first joint arm 211 and the second joint arm 212 are fixed, and when the meshing is released, the first and second joint arms 212 are movable. Adjust the locking knob 222 to "active", release the first locking member 214, rotate the second joint arm 212 to any angle, for example, after rotating it to 30 degrees, lock the first locking member 214, and the joint is fixed at an angle of 30 degrees. At this time, rotate the locking knob 222 180 degrees in the direction of the "active" arrow. After the rotation, the second locking member 223 moves upward, and the third fixed tooth 2231b and the third limiting tooth 2132a are disengaged, which can also be understood as the second locking member 223 and the adjusting disk 213 are disengaged. At this time, the second joint arm 212 and the adjusting disk 213 are also disengaged from the fixed first locking member 223. The second articulated arm 212 and the adjusting disk 213 are fixed together via the positioning guide column 215 and the second locking piece 223. Since the adjusting disk 213 has been rotated 30 degrees before, the second rotation limit groove 2133 on the adjusting disk 213 and the rotation limit groove on the first articulated arm 211 form a space with an angle of 30 degrees. At this time, the second articulated arm 212 can rotate within the range of 30 degrees via the rotation limit column 2122, that is, it can achieve a free movement state from 0 degrees to the current angle. The locking accuracy in the range of 0 to 120 degrees is 10 degrees, that is, 0°, 10°, 20°...120°.

[0083] Depending on different usage scenarios, the brace can achieve free movement within the range of 0 to a specific angle with a maximum of 120 degrees, and fixation at a specific angle within the range of 0 to 120 degrees.

[0084] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A lower limb rehabilitation brace, characterized in that: The rehabilitation brace comprises: a fixing part (100), an outer rotation axis joint (200) and an inner rotation axis joint (300); The fixing part (100) is divided into an outer upper fixing plate (110), an outer lower fixing plate (120), an inner upper fixing plate (130), an inner lower fixing plate (140) and a foot fixing plate (150); the outer upper fixing plate (110) and the inner upper fixing plate (130) cooperate with each other to fit the thigh of the user; the outer lower fixing plate (120) and the inner lower fixing plate (140) cooperate with each other and are respectively located below the outer upper fixing plate (110) and the inner upper fixing plate (130). , used to fit with the user's calf; the foot fixing plate (150) cooperates with the outer lower fixing plate (120) and the inner lower fixing plate (140) to fit with the user's foot; the upper end and the lower end of the outer rotating shaft joint (200) are respectively adjustably fixedly connected to the outer upper fixing plate (110) and the outer lower fixing plate (120); the upper end and the lower end of the inner rotating shaft joint (300) are respectively adjustably fixedly connected to the inner upper fixing plate (130) and the inner lower fixing plate (140); The outer rotating shaft joint (200) and the inner rotating shaft joint (300) both comprise: a rotating shaft assembly (210) and a rotating shaft cover assembly (220); the rotating shaft cover assembly (220) is arranged in the middle of the rotating shaft assembly (210); The rotating shaft assembly (210) comprises: a first joint arm (211), a second joint arm (212), an adjusting disk (213), a first locking member (214) and a positioning guide column (215); wherein the adjusting disk (213), the head end of the first joint arm (211) and the head end of the second joint arm (212) are sequentially stacked and coaxially rotated; the first locking member (214) is limited on the first joint arm (211) and can move up and down along the surface of the first joint arm (211); the adjusting disk (213) and the positioning guide column (215) are located in a space enclosed by the rotating shaft cover assembly (220) and the head end of the first joint arm (211). Inside; the tail end of the first joint arm (211) or the tail end of the second joint arm (212) of the outer shaft joint (200) is adjustably fixedly connected to the outer upper fixing plate (110) or the outer lower fixing plate (120), and the tail end of the first joint arm (211) or the tail end of the second joint arm (212) of the inner shaft joint (300) is adjustably fixedly connected to the inner upper fixing plate (130) or the inner lower fixing plate (140); the end of the first locking member (214) is provided with a second fixing tooth (2141), and the edge of the adjusting disk (213) is provided with a second limiting tooth (2131) meshing with the second fixing tooth (2141); The first end surface of the first joint arm (211) is provided with: a first rotation axis hole (2115) and a first rotation limiting groove (2116); the first end of the second joint arm (212) is provided with: a rotation axis (2121) and a rotation limiting column (2122); the surface of the adjusting disk (213) is provided with: a second rotation axis hole (2132) and a second rotation limiting groove (2133); the second rotation axis hole (2132) is located at the center of the surface of the adjusting disk (213) and corresponds to the first rotation axis hole (2115); the positioning guide column (215 ) is stuck in the second rotating shaft hole (2132); the rotating shaft (2121) passes through the first rotating shaft hole (2115) and the second rotating shaft hole (2132), and is fixedly connected to the positioning guide column (215); the second rotating limit groove (2133) corresponds to the first rotating limit groove (2116), the first rotating limit groove (2116) and the second rotating limit groove (2133) are both arc-shaped long holes, and the rotating limit column (2122) is movably arranged in the first rotating limit groove (2116) and the second rotating limit groove (2133); The edge of the adjusting disk (213) is provided with: a second limiting tooth (2131) and an adjusting handle (2134); the second limiting tooth (2131) is meshed with the second fixed tooth (2141), and the adjusting handle (2134) is movably arranged on the side of the rotating shaft cover assembly (220); the circumference of the second rotating shaft hole (2132) of the adjusting disk (213) is provided with a third limiting tooth (2132a), and the third limiting tooth (2132a) is meshed and connected with the second locking member (223) of the rotating shaft cover assembly (220); The rotating shaft cover assembly (220) comprises: a rotating shaft cover (221), a locking knob (222), a second locking member (223), a limiting ring (224) and a locking push button (225); wherein the rotating shaft cover (221) is arranged at the head end of the first joint arm (211), the adjusting disk (213) and the positioning guide column (215) are located in a space surrounded by the rotating shaft cover (221) and the first joint arm (211); the locking knob (222) is arranged on the rotating shaft cover (221) 221), the locking knob (222) is threadedly connected to the second locking member (223), and the positioning guide column (215) is clamped on the second locking member (223); the limiting ring (224) is sleeved on the locking knob (222) and fixed on the rotating shaft cover (221); the locking push button (225) is fixedly connected to the first locking member (214) and is used to drive the first locking member (214) to move up and down along the surface of the first joint arm (211).

2. The lower limb rehabilitation brace according to claim 1, characterized in that: The rotating shaft cover (221) is provided with: a knob hole (2213) and an adjusting handle sliding groove (2216); Wherein, the knob hole (2213) is located on the rotating shaft cover (221) and corresponds to the second rotating shaft hole (2132) of the adjusting disk (213); the locking knob (222) is arranged at the knob hole (2213) and is threadedly connected to the second locking member (223); The adjusting handle sliding groove (2216) is located on the side of the rotating shaft cover (221), and the adjusting handle (2134) of the adjusting disk (213) is arranged therein and can move along the adjusting handle sliding groove (2216).

3. The lower limb rehabilitation brace according to claim 1, characterized in that: The rotating shaft cover (221) is provided with a dial (2212), which is arranged on the rotating shaft cover (221) and is located at the edge of the locking knob (222).

4. The lower limb rehabilitation brace according to claim 1, characterized in that: The arc angle of the arc-shaped long holes of the first rotation limiting groove (2116) and the second rotation limiting groove (2133) is 120°.

5. The lower limb rehabilitation brace according to claim 1, characterized in that: The first locking member (214) is also symmetrically provided with two connecting holes (2144); the locking push button (225) is provided with a connecting column (2252) corresponding to the connecting hole (2144), and the connecting column (2252) is fixed in the connecting hole (2144).

6. The lower limb rehabilitation brace according to claim 1, characterized in that: The surface of the first joint arm (211) is further provided with: a first guide column (2113) and a second guide column (2114); the first locking member (214) is provided with: a first guide groove (2142) corresponding to the first guide column (2113), and a second guide groove (2143) corresponding to the second guide column (2114); the second guide column (2114) can move along the second guide groove (2143); The rotating shaft cover (221) is provided with a second fixing hole (2211); the second fixing hole (2211) is fixedly connected to the first guide column (2113) of the first joint arm (211).

7. The lower limb rehabilitation brace according to claim 1, characterized in that: The adjusting disk (213) and the first locking member (214) are both arranged in a space enclosed by the rotating shaft cover assembly (220) and the head end of the first joint arm (211); The locking knob (222) and the locking push button (225) are both arranged on the rotating shaft cover (221); The rotating shaft cover (221) is provided with a locking switching groove (2214), and the locking switching groove (2214) corresponds to the first locking member (214); the locking push button (225) is provided with a locking column (2251), and the locking column (2251) is arranged in the locking switching groove (2214) and can move along the locking switching groove (2214).

8. The lower limb rehabilitation brace according to claim 1, characterized in that: The bottom end of the positioning guide column (215) is provided with a hexagonal positioning groove (2151), and the top end thereof is a bolt hole; the center of the hexagonal positioning groove (2151) is provided with a positioning hole (2151a) connected to the bolt hole; the end of the rotating shaft (2121) is fixed with a hexagonal positioning column (2121a), the hexagonal positioning column (2121a) is adapted to the hexagonal positioning groove (2151), is arranged in the hexagonal positioning groove (2151) and is fixed by bolts; The outer side wall of the positioning guide column (215) is evenly provided with third guide grooves (2151b) along the axial direction, the center of the second locking member (223) is provided with a through guide hole (2231) along its axial direction, and the inner side wall of the guide hole (2231) is provided with a plurality of third guide columns (2231a) along its extension direction, the positioning guide column (215) is arranged in the guide hole (2231), and the third guide groove (2151b) of the positioning guide column (215) is matched with the third guide column (2231a); A third fixed tooth (2231b) is provided at the end of the guide hole (2231), and the third fixed tooth (2231b) is meshed with a third limiting tooth (2132a) on the adjustment disk (213).

9. The lower limb rehabilitation brace according to claim 1, characterized in that: The surfaces of the outer upper fixing plate (110), the outer lower fixing plate (120), the inner upper fixing plate (130) and the inner lower fixing plate (140) are all further provided with: a fixing seat (112) and a plurality of position-limiting fixing holes (113); the ends of the first joint arm (211) or the second joint arm (212) of the outer rotating shaft joint (200) are respectively arranged in the fixing seat (112) of the outer upper fixing plate (110) or the outer lower fixing plate (120); the ends of the first joint arm (211) or the second joint arm (212) of the inner rotating shaft joint (300) are respectively arranged in the fixing seat (112) of the inner upper fixing plate (130) or the inner lower fixing plate (140); The end surfaces of the first joint arm (211) and the second joint arm (212) are both provided with: a plurality of first fixing holes (2111) corresponding to the limiting fixing holes (113), and the fixing seat (112) is fixedly connected to the end of the first joint arm (211) or the second joint arm (212) through the cooperation of the limiting fixing holes (113), the first fixing holes (2111) and screws.

10. The lower limb rehabilitation brace according to claim 9, characterized in that: The fixing seat (112) is provided with an adjustment limit groove (114); The limiting fixing hole (113) is located in the adjusting limiting groove (114), and the inner wall of the adjusting limiting groove (114) is symmetrically provided with: a first limiting tooth (115), and the plurality of limiting fixing holes (113) and the first limiting tooth (115) are all provided along the extension direction of the adjusting limiting groove (114); Both sides of the ends of the first joint arm (211) and the second joint arm (212) are provided with a first fixed tooth (2112) meshing with the first position-limiting tooth (115); the first fixed tooth (2112) meshes with the first position-limiting tooth (115).

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