CN118217075A - Knee joint rehabilitation brace - Google Patents

Abstract

The invention discloses a knee joint rehabilitation brace, which comprises: a fixed plate and a rotating shaft joint; the fixing plate is divided into an upper fixing plate and a lower fixing plate, and the upper fixing plate and the lower fixing plate are respectively used for being attached to the upper side face of the limb and the lower side face of the limb of a user; the upper end and the lower end of the rotating shaft joint are respectively and adjustably fixedly connected with the upper fixing plate and the lower fixing plate. The knee joint rehabilitation brace disclosed by the invention is structurally composed of the fixing plate and the rotating shaft joint, wherein the fixing part is modeled based on the body surface data of a patient and is formed by 3D printing, so that the matching and fixing of the patient are met to the greatest extent; the rotating shaft joint part consists of a rotating shaft assembly and a rotating shaft cover assembly, and through structural design of the rotating shaft assembly and the rotating shaft cover assembly, the fixed specific function angle or the movable function within the specific angle range can be met, so that the use requirement of all recovery periods is met for one set of products.

Description

Knee joint rehabilitation brace

Technical Field

The invention relates to a rehabilitation instrument, in particular to a knee joint rehabilitation brace.

Background

The knee joint rehabilitation brace is an auxiliary rehabilitation tool for knee joint injury or knee joint postoperative rehabilitation, and helps patients relieve pain, promote joint healing, and recover joint functions by providing necessary fixation, support and protection.

At present, the rehabilitation brace is mainly divided into a fixed brace and a functional brace so as to meet the requirements of patients in different stages. Therefore, the patient needs to wear the fixed support after operation, and needs to change the fixed support into the functional support after the patient is recovered to a certain stage, and perform recovery training of exercise and strength, and the like, so that the patient is required to customize in different stages or purchase only recovery treatment in corresponding stages, and the recovery cost is increased intangibly.

The traditional fixing support is mainly made of gypsum or low-temperature thermoplastic plates, and symptoms such as skin stuffiness, allergy and the like are easy to generate after long-time wearing. The functional rehabilitation brace of current mainstream can satisfy the training activity requirement of rehabilitation stage, but this serial products are general model, and patient's matching degree is poor, causes fixed inefficacy easily, and rehabilitation effect is not good. However, although the conventional 3D printing customized brace has higher matching degree for patients, the conventional 3D printing customized brace has single function, only plays a role in early fixation, cannot meet the requirement of later joint movement, and is limited in use.

Disclosure of Invention

The invention aims to provide a knee joint rehabilitation brace, which solves the problem of single function of the existing brace, can be used for fixing limbs and can also ensure movement in a certain range.

In order to achieve the above object, the present invention provides a knee joint rehabilitation brace comprising: a fixed plate and a rotating shaft joint; the fixing plate is divided into an upper fixing plate and a lower fixing plate, and the upper fixing plate and the lower fixing plate are respectively used for being attached to the upper side face of the limb and the lower side face of the limb of a user; the upper end and the lower end of the rotating shaft joint are respectively and adjustably fixedly connected with the upper fixing plate and the lower fixing plate; the pivot joint includes: a spindle assembly and a spindle cover assembly; the rotating shaft cover assembly is arranged in the middle of the rotating shaft assembly; the rotating shaft assembly comprises: the device comprises a first joint arm, a second joint arm, an adjusting disc, a first locking piece and a positioning guide column; the adjusting disc, 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 disc and the positioning guide column are positioned in a space enclosed by the rotating shaft cover assembly and the head end of the first joint arm; the tail end of the first joint arm or the tail end of the second joint arm is adjustably and fixedly connected with the upper fixing plate or the lower fixing plate; the end part of the first locking piece is provided with a second fixed tooth, and the edge of the adjusting disk is provided with a second limiting tooth meshed with the second fixed tooth; the head end surface of the first joint arm is provided with: the first rotating shaft hole and the first rotating limiting groove; the head end of the second joint arm is provided with: a rotating shaft and a rotation limiting column; the surface of the adjusting disk is provided with: the second rotating shaft hole and the second rotating limiting groove; the second rotating shaft hole is positioned at the center of the surface of the adjusting disc and corresponds to the first rotating shaft hole; the positioning guide column is blocked and propped in the second rotating shaft hole; the rotating shaft penetrates through the first rotating shaft hole and the second rotating shaft hole and is fixedly connected with the positioning guide column; the second rotation limiting groove corresponds to the first rotation limiting groove, the first rotation limiting groove and the second rotation limiting groove are arc long holes, and the rotation limiting column is movably arranged in the first rotation limiting groove and the second rotation limiting groove; the edge of the adjusting disk is provided with: the second limiting teeth and the adjusting handle; the second limiting teeth are meshed with the second fixed teeth, and the adjusting handle is movably arranged on the side face of the rotating shaft cover assembly; a third limiting tooth is arranged on the circumference of the second rotary shaft hole of the adjusting disc and is in meshed connection with the second locking piece of the rotary shaft cover assembly; the rotary shaft cover assembly includes: the device comprises a rotating shaft cover, a locking knob, a second locking piece, a limiting ring and a locking push button; the rotating shaft cover is arranged at the head end of the first joint arm, and the adjusting disc and the positioning guide column are positioned in a space enclosed by the rotating shaft cover and the first joint arm; the locking knob is arranged on the rotating shaft cover and is in threaded connection with the second locking piece, and the positioning guide column is clamped on the second locking piece; the limiting ring is sleeved on the locking knob and fixed on the rotating shaft cover; the locking push button is fixedly connected with the first locking piece and is used for driving the first locking piece to move up and down along the surface of the first joint arm.

Preferably, the rotating shaft cover is provided with: a knob hole and an adjusting handle chute; the rotary shaft cover is provided with a rotary shaft hole, and the rotary shaft hole is positioned on the rotary shaft cover and corresponds to the second rotary shaft hole of the regulating disc; the locking knob is arranged at the knob hole and is in threaded connection with the second locking piece; the adjusting handle sliding groove is positioned on the side face of the rotating shaft cover, and the adjusting handle of the adjusting disc is arranged in the adjusting handle sliding groove and can move along the adjusting handle sliding groove.

Preferably, the rotating shaft cover is provided with: a dial provided on the rotation shaft cover at an edge of the locking knob.

Preferably, the radian of the arc-shaped long holes of the first rotation limiting groove and the second rotation limiting groove is 120 degrees.

Preferably, the first locking piece is also symmetrically provided with two connecting holes; the locking push button is provided with a connecting column corresponding to the connecting hole, and the connecting column is fixed in the connecting hole.

Preferably, the surface of the first joint arm is further provided with: a first guide post and a second guide post; the first locking piece is provided with: a first guide groove corresponding to the first guide post, and a second guide groove corresponding to the second guide post; the second guide post 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 with the first guide post of the first joint arm.

Preferably, the adjusting disc and the first locking piece are both arranged in a 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 corresponding to the first locking member; the locking push button is provided with: and the locking column is arranged in the locking switching groove and can move along the locking switching groove.

Preferably, the bottom end of the positioning guide post is provided with a hexagonal positioning groove, and the top end of the positioning guide post is provided with a bolt hole; a positioning hole communicated with the bolt hole is formed in the center of the hexagonal positioning groove; the end part of the rotating shaft is fixed with a hexagonal positioning column which is matched with the hexagonal positioning groove, is arranged in the hexagonal positioning groove and is fixed by a bolt; the outer side wall of the positioning guide column is uniformly provided with third guide grooves along the axial direction, the center of the second locking piece is provided with a through guide hole along the axial direction, the inner side wall of the guide hole is provided with a plurality of third guide columns along the extending direction, the positioning guide column is arranged in the guide hole, and the third guide grooves of the positioning guide column are matched with the third guide columns; and a third fixed tooth is arranged at the end part of the guide hole and meshed with a third limiting tooth on the adjusting disc.

Preferably, the surfaces of the upper and lower fixing plates are further provided with: the fixing seat and the limiting fixing holes are formed in the fixing seat; the tail ends of the first joint arm or the second joint arm are respectively arranged in the fixed seat of the upper fixing plate or the lower fixing plate; the end surfaces of the first joint arm and the second joint arm are provided with: and the fixed seats are fixedly connected with the tail ends of the first joint arms or the second joint arms through the limit fixing holes, the first fixing holes and the screws.

Preferably, the fixing seat is provided with an adjusting limit groove; the limiting fixing holes are positioned in the adjusting limiting grooves, and the inner walls of the adjusting limiting grooves are symmetrically provided with: the first limiting teeth, the limiting fixing holes and the first limiting teeth are arranged along the extending direction of the adjusting limiting groove; both sides of the tail ends of the first joint arm and the second joint arm are provided with: and the first fixed tooth is meshed with the first limiting tooth.

Preferably, the surfaces of the upper fixing plate and the lower fixing plate are respectively provided with: a plurality of ventilation holes; the two sides of the upper fixing plate and the lower fixing plate are also provided with: the magic subsides connecting hole, the magic subsides connecting hole is used for connecting fixedly between last fixed plate and the limbs.

Preferably, the magic tape connecting holes are bar-shaped holes, and four magic tape connecting holes are designed and are symmetrical in two positions.

Preferably, the spacing between the adjacent spacing fixing holes and the spacing between the adjacent first spacing teeth are all 10mm.

Preferably, the distance between the adjacent first fixing holes and the adjacent first fixing teeth is 10mm.

Preferably, the first guide post and the second guide post are positioned in the middle of the first joint arm; the first guide post is cylindrical, and a screw hole is formed in the end part of the first guide post along the axial direction of the first guide post; the second fixing hole corresponds to a screw hole on the first guide post of the first joint arm, and the rotating shaft cover is fixed on the first joint arm through a screw.

Preferably, the second guide post is elongated.

Preferably, the second limiting teeth are circumferentially arranged according to the illuminance angle, and the maximum radian is the degree.

Preferably, a gasket is arranged between the positioning guide post and the second rotating shaft hole of the adjusting disc.

Preferably, the rotating shaft cover is provided with: the limiting ring fixing holes are distributed and arranged around the knob hole, the limiting ring is sleeved on the locking knob, and the limiting ring is fixed on the rotating shaft cover through the cooperation of the screw and the limiting ring fixing holes.

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

Preferably, the top of the locking knob is fixedly provided with: the status indicates the arrow, the arrow both ends are carved with "fixed" and "movable" sign respectively.

Preferably, a first limiting table is circumferentially arranged on the outer side wall of the locking knob, and the limiting ring is sleeved on the locking knob and limits the first limiting table of the locking knob.

Preferably, the limiting ring is provided with: the second limiting table is used for limiting the first limiting table of the locking knob.

Preferably, a mounting groove is formed in the bottom of the locking knob, and the mounting groove is provided with an internal thread, and the internal thread is matched with the external thread of the second locking piece.

Preferably, the limit ring is provided with: and the third fixing hole is matched with the limit ring through a screw to fix the limit ring on the rotating shaft cover.

Preferably, the upper fixing plate and the lower fixing plate are made of resin materials, and are formed by 3D printing through additive technology.

Preferably, the spindle assembly is formed from a metallic material.

The knee joint rehabilitation brace solves the problem of single function of the existing brace, and has the following advantages:

the knee joint rehabilitation brace disclosed by the invention is structurally composed of the fixing plate and the rotating shaft joint, wherein the fixing part is modeled based on the body surface data of a patient and is formed by 3D printing, so that the matching and fixing of the patient are met to the greatest extent; the rotating shaft joint part consists of a rotating shaft assembly and a rotating shaft cover assembly, and through structural design of the rotating shaft assembly and the rotating shaft cover assembly, the fixed specific function angle or the movable function within the specific angle range can be met, so that the use requirement of all recovery periods is met for one set of products.

Drawings

Fig. 1 is a perspective view of a knee joint rehabilitation brace of the present invention.

Fig. 2 is a perspective view of a pivot joint according to the present invention.

Fig. 3 is a perspective view of a rotary shaft assembly according to the present invention.

Fig. 4 is a perspective view of the upper fixing plate of the present invention.

Fig. 5 is a perspective view of the first arm according to the present invention.

Fig. 6 is a perspective view of a second arm according to the present invention.

Fig. 7 is a perspective view of the dial of the present invention.

Fig. 8 is a perspective view showing a first locker of the present invention.

Fig. 9 is a perspective view of the positioning guide post of the present invention.

Fig. 10 is a perspective view of a spin cover assembly according to the present invention.

Fig. 11 is a perspective view of the pivot cover of the present invention.

Fig. 12 is a perspective view showing a second locker of the present invention.

Fig. 13 is a perspective view of a locking knob according to the present invention.

Fig. 14 is a perspective view of the retainer ring of the present invention.

Fig. 15 is a perspective view of the lock button according to the present invention.

Detailed Description

The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

A knee rehabilitation brace, see fig. 1-15, comprising: a fixed plate 100 and a spindle joint 200. Wherein the fixing plate is divided into an upper fixing plate 110 and a lower fixing plate 120. The upper end of the rotation shaft joint 200 is adjustably and fixedly connected with the upper fixing plate 110, and the lower end of the rotation shaft joint 200 is adjustably and fixedly connected with the lower fixing plate 120.

The surfaces of the upper and lower fixing plates 110 and 120 are provided with: the ventilation holes 111 enable the upper fixing plate 110 and the lower fixing plate 120 to have good ventilation performance and aesthetic property, and the surfaces of the upper fixing plate 110 and the lower fixing plate 120 are also provided with: a fixed seat 112 and a plurality of limiting fixed holes 113. The fixing base 112 is provided with an adjusting limiting groove 114, the limiting fixing hole 113 is positioned in the adjusting limiting groove 114, and the inner wall of the adjusting limiting groove 114 is symmetrically provided with: the first limiting teeth 115, the plurality of limiting fixing holes 113 and the first limiting teeth 115 are all arranged along the extending direction of the adjusting limiting groove 114. The fixing base 112 is limited by the first limiting teeth 115 and the rotating shaft joint 200, the fixing base 112 and the rotating shaft joint 200 are fixedly connected by the cooperation of the limiting fixing holes 113 and screws, and the toothed limiting can not only increase the fixing stability, but also realize the adjustment of the fixing distance. The two side surfaces of the upper and lower fixing plates 110 and 120 are further provided with: the magic tape connecting hole 116, the magic tape connecting hole 116 is used for connecting and fixing between the upper fixing plate 110 and the limbs.

Specifically, the magic tape connecting holes 116 are bar-shaped holes, and four and two-to-two positions are designed symmetrically.

Specifically, the spacing between adjacent spacing fixing holes 113 and between adjacent first spacing teeth 115 is 10mm.

The spindle joint 200 includes: a spindle assembly 210 and a spindle cover assembly 220. The rotating shaft cover assembly 220 is disposed in the middle of the rotating shaft assembly 210, and the upper and lower ends of the rotating shaft assembly 210 have first fixing teeth 2112, and the first fixing teeth 2112 are engaged with the first limiting teeth 115 of the upper and lower fixing plates.

The spindle assembly 210 includes: first articulated arm 211, second articulated arm 212, adjustment disk 213, first retaining member 214, and positioning guide post 215. Wherein, the adjusting plate 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 retained on the first arm 211 and is movable up and down along the surface of the first arm 211. The adjustment plate 213 and the first locking member 214 are disposed in a space defined by the rotation 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 is adjustably and fixedly connected with the upper fixing plate 110 or the lower fixing plate 120. The end of first locking member 214 is provided with a second stationary tooth 2141 and the edge of adjustment plate 213 is provided with a second stop tooth 2131 which engages with second stationary tooth 2141. The bottom of the positioning guide column 215 is provided with a hexagonal positioning groove 2151, the top is provided with a bolt hole, the center of the hexagonal positioning groove 2151 is provided with a positioning hole 2151a communicated with the bolt hole, the outer side wall of the positioning guide column 215 is uniformly provided with a third guiding groove 2151b along the axial direction, and the third guiding groove 2151b is matched with the second locking piece 223 of the rotating shaft cover assembly 220. The positioning guide column 215 is provided at the center of the regulation plate 213.

The end surfaces of the first joint arm 211 and the second joint arm 212 are each provided with: a plurality of first fixing holes 2111 corresponding to the limiting fixing holes 113, and two sides of the tail ends of the first joint arm 211 and the second joint arm 212 are respectively provided with: first stationary teeth 2112, which engage first spacing teeth 115, and the surface of first articulating arm 211 further includes: the first guide post 2113 and the second guide post 2114 cooperate with the first locking member 214 for securing and guiding. First locking member 214 is provided with: a first guide groove 2142 corresponding to the first guide post 2113, and a second guide groove 2143 corresponding to the second guide post 2114. The second guide post 2114 is movable along the second guide groove 2143 to thereby effect locking or unlocking of the adjustment plate 213. The head end surface of the first joint arm 211 is provided with: the first rotation shaft hole 2115 and the first rotation limiting groove 2116 are provided at the head end of the second joint arm 212: the rotation shaft 2121 and the rotation limit post 2122, rotation shaft 2121 passes through first rotation shaft hole 2115, and the tip of rotation shaft 2121 is fixed with hexagonal reference column 2121a, and this hexagonal reference column 2121a and hexagonal constant head tank 2151 looks adaptation, and hexagonal reference column 2121a sets up in hexagonal constant head tank 2151 and passes through the bolt fastening, prevents second joint arm 212 self rotation. The rotational limit post 2122 is movably disposed within the first rotational limit groove 2116. The first joint arm 211 and the second joint arm 212 are connected to the first rotation shaft hole 2115 through a rotation shaft 2121, and the rotation limit post 2122 and the first rotation limit groove 2116 cooperate with each other to realize rotation in a range of 0 to 120 degrees.

First locking member 214 is further provided with: two connecting holes 2144 may be symmetrically disposed, and the connecting holes 2144 are fixedly connected with the locking push button 225 on the rotating shaft cover assembly 220.

Specifically, the spacing between adjacent first fixing holes 2111, between adjacent first fixing teeth 2112 is 10mm, and the first fixing holes 2111 are engaged with the limit fixing holes 113 of the fixing plate and fixed with screws.

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

The dial 213 has provided on its surface: a second rotation shaft hole 2132 and a second rotation limiting groove 2133, wherein the second rotation shaft hole 2132 is positioned at the center of the surface of the adjusting disk 213 and corresponds to the first rotation shaft hole 2115, and the positioning guide post 215 is blocked in the second rotation shaft hole 2132. The rotation shaft 2121 passes through the first rotation shaft hole 2115 and the second rotation shaft hole 2132, and is fixedly coupled to the positioning guide post 215. The second rotation limiting groove 2133 corresponds to the first rotation limiting groove 2116, the first rotation limiting groove 2116 and the second rotation limiting groove 2133 are arc-shaped long holes, the radian of each arc-shaped long hole is 120 degrees, and the rotation limiting post 2122 is movably arranged in the first rotation limiting groove 2116 and the second rotation limiting groove 2133. The edge of the adjusting disk 213 is provided with: the second limiting teeth 2131 and the adjusting handle 2134, the second limiting teeth 2131 are engaged with the second fixing teeth 2141, and the adjusting handle 2134 is movably disposed at a side of the rotating shaft cover assembly 220. The circumference of the second rotating shaft hole 2132 of the adjusting plate 213 is provided with a third limiting tooth 2132a, and the third limiting tooth 2132a is engaged with the second locking member 223 of the rotating shaft cover assembly 220.

Specifically, the second stop teeth 2131 are circumferentially arranged at an angle of 10 degrees, ranging from 120 degrees. The second limiting teeth 2131 and the first locking piece 214 are matched to realize 0-120 degrees of angle adjustment, and the adjustment unit is 10 degrees.

Specifically, a spacer 2152 is provided between the positioning guide post 215 and the second rotation shaft hole 2132 of the adjustment plate 213, preventing rotational wear between the parts, and reducing rotational resistance.

The hinge cover assembly 220 includes: a spindle cover 221, a locking knob 222, a second locking member 223, a stop collar 224, and a locking push button 225. The rotating shaft cover 221 is disposed at the head end of the first joint arm 211, and the rotating shaft assembly 210 is disposed in a space enclosed by the rotating shaft cover 221 and the first joint arm 211. The locking knob 222 and the locking push button 225 are both provided on the rotation shaft cover 221, the locking knob 222 is screw-coupled with the second locking member 223, and the second locking member 223 is engaged with the third guide groove 2151b, thereby driving the second knuckle arm 212 to rotate by rotating the locking knob 222. 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 coupled to the coupling hole 2144 of the first locking member 214 in a mating manner.

The rotation shaft cover 221 is provided with: a second fixing hole 2211, a dial 2212, a knob hole 2213, a lock switching groove 2214, a stop ring fixing hole 2215, and an adjustment handle slide groove 2216. Wherein, the second fixing hole 2211 corresponds to the screw hole 2113a on the first guide post 2113 of the first joint arm 211, and the rotation shaft cover 221 is fixed to the first joint arm 211 by a screw. The locking switch groove 2214 corresponds to the second guide groove 2143 and the connection hole 2144 of the first locking member 214, and the locking push button 225 is disposed in the locking switch groove 2214 and is movable along the locking switch groove 2214. The knob hole 2213 is located at the center of the rotation shaft cover 221, corresponding to the second rotation shaft hole 2132 of the adjustment plate 213, and the locking knob 222 is disposed at the knob hole 2213 and is screwed with the second locking member 223. The spacing ring fixing holes 2215 are distributed and arranged around the knob hole 2213, the spacing ring 224 is sleeved on the locking knob 222, and the spacing ring 224 is fixed on the spindle cover 221 by matching the screw with the spacing ring fixing holes 2215. A dial 2212 is provided on the spindle cover 221 at the edge of the locking knob 222, the dial 2212 being provided with 0-120 degree indicia. The adjustment stem slide 2216 is located on the side of the spindle cover 221, and an adjustment stem 2134 of the adjustment plate 213 is disposed therein and is movable along the adjustment stem slide 2216.

Specifically, the lock knob 225 is provided with one lock post 2251 and two connection posts 2252. The lock post 2251 is disposed within the lock switch groove 2214, and is movable along the lock switch groove 2214. The connection post 2252 passes through the locking switching groove 2214 and is fixed in the connection hole 2144 of the first locking member 214.

Specifically, the center of the second locking member 223 is provided with a through guide hole 2231 along the axial direction thereof, the inner side wall of the guide hole 2231 is provided with a plurality of third guide posts 2231a along the extending direction thereof, the positioning guide post 215 is disposed in the guide hole 2231, and the third guide groove 2151b of the positioning guide post 215 is matched with the third guide posts 2231 a. An external thread is provided on an outer sidewall of the second locker 223, and is screw-coupled with the locking knob 222 through the external thread. The end of the pilot hole 2231 is provided with a third fixed tooth 2231b, which third fixed tooth 2231b engages with a third stop tooth 2132a on the adjustment plate 213.

More specifically, the pitch of the external thread of the guide hole 2231 is twice the height of the third fixed tooth 2231 b. The second locking member 223 is connected with the locking knob 222 through threads, and two arrows on the locking knob 222 correspond to two states of "fixed" or "movable", and the space between the two states is 180 degrees. The initial position is a fixed state, when the locking knob 222 rotates half a turn in the direction of the "movable" arrow, the second locking member 223 inside moves upward by 1/2 pitch, and the third fixed tooth 2231b is also set to 1/2 pitch, so that the locking is just released, and the movable function is realized. Similarly, by rotating the locking knob 222 half a turn in the direction of the "fixed" arrow, the inner second locking member 223 is moved downward by a height of 1/2 pitch, i.e., the third fixed tooth 2231b just engages the third limiting tooth 2132a on the adjustment plate 213. Because the overall height of the second locker 223 is limited, the up and down moving space thereof is only half of the height of the screw pitch, and thus the locking knob 222 is rotated only half of a turn.

Specifically, the top of the locking knob 222 is fixedly provided with: the status indicates the arrow, the arrow both ends are carved with "fixed" and "movable" sign respectively. The outer side wall of the locking knob 222 is circumferentially provided with a first limit table 2221, and the limit ring 224 is sleeved on the locking knob 222 and limits the first limit table 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, which is engaged with an external thread of the second locking member 223.

Specifically, the retainer ring 224 is provided with: the second limiting stage 2241 is configured to limit the first limiting stage 2221 of the locking knob 222.

Specifically, the stop collar 224 is provided with: the third fixing hole 2242 is engaged with the third fixing hole 2242 by a screw, and fixes the stopper ring 224 to the shaft cover 221.

Specifically, the upper fixing plate 110 and the lower fixing plate 120 are made of resin materials, and are formed by 3D printing with additive technology, so as to meet the individual customization requirement. The spindle assembly 210 is formed from a metallic material. The shaft cover assembly 220 is made of a resin material, and is not limited to 3D printing molding or conventional injection molding.

The invention relates to a use method of a knee joint rehabilitation brace, which comprises the following specific steps:

The fixed teeth on the upper fixing plate 110 are matched with the limit teeth on the first joint arm 211, and the fixed teeth on the lower fixing plate 120 are matched with the limit teeth on the second joint arm 212 to form a limit relationship, and then are fixed by screws.

The upper fixing plate 110 and the lower fixing plate 120 are respectively attached to the outer sides of the thighs and the outer sides of the shanks of the user, the rotary shaft joint 200 is arranged at the outer side of the knee joint, and the braces are fixed to the lower limbs of the user by using the magic tapes through the magic tape connecting holes 116 on the two sides of the upper fixing plate 110 and the lower fixing plate 120.

If the wearing position is not proper, the screws in the fixing holes of the first joint arm 212 and the second joint arm 212 can be released to adjust the upper and lower positions of the joint arms and the fixing plate again, and each adjusting unit is 10mm.

The lock knob 222 is "fixed" in initial position, and the adjustment lever 2134 is "0 degrees" in initial position, and the spindle joint 200 is fixed at 0 degrees. The locking push button 225 is adjusted to move towards the tail end of the first joint arm 211, the locking push button 225 drives the first locking member 214 to move towards the tail end of the first joint arm 211, so that the engagement state of the second fixing teeth 2141 of the first locking member 214 and the second limiting teeth 2131 of the adjusting plate 213 is released, namely the locking state of the upper joint and the lower joint is released, at the moment, the adjusting plate 213 is driven to rotate by pulling the adjusting handle 2134, the third limiting teeth 2132a on the adjusting plate 213 are engaged with the third fixing teeth 2231b on the second locking member 223, the adjusting plate 213 drives the second locking member 223 to rotate, and the second locking member 223 drives the positioning guide column 215 to rotate, so that the second joint arm 212 fixedly connected with the positioning guide column 215 is driven to rotate, and the knee joint can freely move by 0-120 degrees. When the adjustment lever 2134 is aligned with the dial plate of the rotary shaft cover 221 by any degree ranging from 0 to 120, the locking knob 225 is adjusted downward to bring the second fixing teeth 2141 of the first locking member 214 into engagement with the second limiting teeth 2131 of the adjustment plate 213, i.e., to lock the angular state.

When the spindle joint 200 is in a locked state with a certain angle, the third fixing tooth 2231b on the second locking member 223 and the third limiting tooth 2132a on the adjusting plate 213 are engaged, and the second locking member 223 and the positioning guide post 215 are locked with each other, so that the positioning guide post 215 is fixed on the second joint arm 212, that is, it can be understood that the second locking member 223, the adjusting plate 213 and the second joint arm 212 are fixed with each other; the first locking member 214 is located on the first joint arm 211, and is engaged with the second limiting teeth 2131 on the adjusting plate 213 by the second fixing teeth 2141, and when engaged with the first joint arm 211 and the second joint arm 212, the first joint arm 212 and the second joint arm 212 are moved when disengaged from each other. Turning the locking knob 222 "active" and releasing the first locking member 214, rotating the second articulation arm 212 to any angle (e.g., to 30 degrees), locking the first locking member 214, where the joint is fixed at 30 degrees, rotating the locking knob 222 180 degrees in the direction of the "active" arrow, after rotation, the second locking member 223 moves upward, the third fixed tooth 2231b and the third limiting tooth 2132a are disengaged, which can also be understood as that the second locking member 223 and the adjustment plate 213 are disengaged, where the second articulation arm 212 and the adjustment plate 213 are also disengaged (the second articulation arm 212 and the adjustment plate 213 are fixed together via the positioning guide post 215 and the second locking member 223), and since the previous adjustment plate 213 rotates 30 degrees, the second rotation limiting groove 2133 on the adjustment plate 213 and the rotation limiting groove on the first articulation arm 211 form a space of 30 degrees, where the second articulation arm 212 can rotate in the range of 30 degrees via the rotation limiting post 2122, i.e., a free state between 0 degrees and the current angle is achieved, and a locking precision of 0-120 degrees, i.e., 10 °,20 degrees, and … … °.

According to different use scenes, the support can freely move within a range of 0-specific angle (maximum 120 degrees) and be fixed within a range of 0-120 degrees.

While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. A rehabilitation brace for a knee joint, the rehabilitation brace comprising: a fixed plate (100) and a rotation shaft joint (200);

The fixing plates are divided into an upper fixing plate (110) and a lower fixing plate (120), and the upper fixing plate (110) and the lower fixing plate (120) are respectively used for being attached to the upper side face and the lower side face of the limb of a user; the upper end and the lower end of the rotating shaft joint (200) are respectively and adjustably fixedly connected with the upper fixing plate (110) and the lower fixing plate (120);

the shaft joint (200) comprises: a spindle assembly (210) and a spindle cover assembly (220); the rotating shaft cover assembly (220) is arranged in the middle of the rotating shaft assembly (210);

The spindle assembly (210) includes: the device comprises a first joint arm (211), a second joint arm (212), an adjusting disc (213), a first locking piece (214) and a positioning guide column (215); wherein, the adjusting disc (213), the head end of the first joint arm (211) and the head end of the second joint arm (212) are sequentially overlapped and coaxially rotated; the first locking piece (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 disc (213) and the positioning guide column (215) are positioned in a 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) is adjustably and fixedly connected with the upper fixing plate (110) or the lower fixing plate (120); the end part of the first locking piece (214) is provided with a second fixed tooth (2141), and the edge of the adjusting disc (213) is provided with a second limiting tooth (2131) meshed with the second fixed tooth (2141);

The head end surface of the first joint arm (211) is provided with: a first rotation shaft hole (2115) and a first rotation limiting groove (2116); the head end of the second joint arm (212) is provided with: a rotation shaft (2121) and a rotation limit post (2122); the surface of the adjusting disk (213) is provided with: a second rotation shaft hole (2132) and a second rotation limiting groove (2133); the second rotation shaft hole (2132) is positioned at the center of the surface of the adjusting disk (213) and corresponds to the first rotation shaft hole (2115); the positioning guide column (215) is blocked 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 with the positioning guide column (215); the second rotation limiting groove (2133) corresponds to the first rotation limiting groove (2116), the first rotation limiting groove (2116) and the second rotation limiting groove (2133) are arc long holes, and the rotation limiting column (2122) is movably arranged in the first rotation limiting groove (2116) and the second rotation limiting groove (2133);

The edge of the adjusting disc (213) is provided with: a second limiting tooth (2131) and an adjusting handle (2134); the second limiting teeth (2131) are meshed with the second fixed teeth (2141), and the adjusting handle (2134) is movably arranged on the side face of the rotating shaft cover assembly (220); a third limiting tooth (2132 a) is arranged on the circumference of the second rotating shaft hole (2132) of the adjusting disc (213), and the third limiting tooth (2132 a) is in meshed connection with the second locking piece (223) of the rotating shaft cover assembly (220);

The spin cover assembly (220) includes: a rotating shaft cover (221), a locking knob (222), a second locking piece (223), a limiting ring (224) and a locking push button (225); the rotating shaft cover (221) is arranged at the head end of the first joint arm (211), and the adjusting disc (213) and the positioning guide column (215) are positioned in a space enclosed by the rotating shaft cover (221) and the first joint arm (211); the locking knob (222) is arranged on the rotating shaft cover (221), the locking knob (222) is in threaded connection with the second locking piece (223), and the positioning guide column (215) is clamped on the second locking piece (223); the limiting ring (224) is sleeved on the locking knob (222) and is fixed on the rotating shaft cover (221); the locking push button (225) is fixedly connected with the first locking piece (214) and is used for driving the first locking piece (214) to move up and down along the surface of the first joint arm (211).

2. The knee joint rehabilitation brace according to claim 1, wherein the pivot cover (221) is provided with: a knob hole (2213) and an adjusting handle chute (2216);

Wherein the knob hole (2213) is positioned 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 in threaded connection with the second locking piece (223);

the adjusting handle sliding groove (2216) is positioned on the side surface of the rotating shaft cover (221), and the adjusting handle (2134) of the adjusting disc (213) is arranged in the adjusting handle sliding groove and can move along the adjusting handle sliding groove (2216).

3. The knee joint rehabilitation brace according to claim 1, wherein the pivot cover (221) is provided with: a dial (2212), the dial (2212) being arranged on the spindle cover (221) at the edge of the locking knob (222).

4. The knee joint rehabilitation brace according to claim 1, wherein the arc of the arc-shaped slot holes of the first rotational limit groove (2116) and the second rotational limit groove (2133) is 120 °.

5. The knee joint rehabilitation brace according to claim 1, wherein two connecting holes (2144) are symmetrically arranged on the first locking member (214); 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 knee joint rehabilitation brace according to claim 1, characterized in that the surface of the first joint arm (211) is further provided with: a first guide post (2113) and a second guide post (2114); the first locking piece (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 post (2114) is movable along a second guide slot (2143);

the rotating shaft cover (221) is provided with: a second fixing hole (2211); the second fixing hole (2211) is fixedly connected with the first guide column (2113) of the first joint arm (211).

7. The knee joint rehabilitation brace according to claim 1, wherein the adjustment plate (213) and the first locking member (214) are both disposed in a space enclosed by the rotation shaft cover assembly (220) and a head end of the first joint arm (211);

The locking knob (222) and the locking push button (225) are arranged on the rotating shaft cover (221);

The rotating shaft cover (221) is provided with: a lock switching groove (2214), the lock switching groove (2214) corresponding to the first lock member (214); the locking push button (225) is provided with: and a locking column (2251), wherein the locking column (2251) is disposed in the locking switching groove (2214) and is movable along the locking switching groove (2214).

8. The knee joint rehabilitation brace according to claim 1, wherein a hexagonal positioning groove (2151) is arranged at the bottom end of the positioning guide post (215), and a bolt hole is arranged at the top end of the positioning guide post; a positioning hole (2151 a) communicated with the bolt hole is formed in the center of the hexagonal positioning groove (2151); a hexagonal positioning column (2121 a) is fixed at the end part of the rotating shaft (2121), the hexagonal positioning column (2121 a) is matched with the hexagonal positioning groove (2151), and the hexagonal positioning column is arranged in the hexagonal positioning groove (2151) and is fixed through a bolt;

The outer side wall of the positioning guide column (215) is uniformly provided with a third guide groove (2151 b) along the axial direction, the center of the second locking piece (223) is provided with a through guide hole (2231) along the axial direction, the inner side wall of the guide hole (2231) is provided with a plurality of third guide columns (2231 a) along the extending direction, the positioning guide column (215) is arranged in the guide hole (2231), and the third guide groove (2151 b) of the positioning guide column (215) is matched with the third guide column (2231 a);

The end of the guide hole (2231) is provided with a third fixed tooth (2231 b), and the third fixed tooth (2231 b) is meshed with a third limit tooth (2132 a) on the adjusting disk (213).

9. The knee joint rehabilitation brace according to claim 1, wherein the surfaces of the upper and lower fixation plates (110, 120) are further provided with: the fixing seat (112) and a plurality of limit fixing holes (113); the tail ends of the first joint arms (211) or the second joint arms (212) are respectively arranged in the fixed seat (112) of the upper fixed plate (110) or the lower fixed plate (120);

The end surfaces of the first joint arm (211) and the second joint arm (212) are provided with: and the fixed base (112) is fixedly connected with the tail ends of the first joint arm (211) or the second joint arm (212) through the limiting fixed holes (113), the first fixed holes (2111) and the screw.

10. The knee joint rehabilitation brace according to claim 9, wherein the fixing seat (112) is provided with an adjusting limit groove (114);

The limiting fixing holes (113) are positioned in the adjusting limiting grooves (114), and the inner walls of the adjusting limiting grooves (114) are symmetrically provided with: the first limiting teeth (115), the limiting fixing holes (113) and the first limiting teeth (115) are arranged along the extending direction of the adjusting limiting groove (114);

Both sides of the tail ends of the first joint arm (211) and the second joint arm (212) are provided with: a first stationary tooth (2112) engaged with the first spacing tooth (115), the first stationary tooth (2112) engaged with the first spacing tooth (115).