Medical leg joint rehabilitation training equipment

Abstract

The invention relates to the technical field of leg joint rehabilitation training, in particular to medical leg joint rehabilitation training equipment which comprises a supporting guide rail and two supporting frames installed at the bottom of the supporting guide rail, the supporting frames are detachably installed on one side of a sickbed, and the medical leg joint rehabilitation training equipment further comprises a moving frame and a moving shell which are both slidably connected to the supporting guide rail; the number of the moving mechanisms is two, and the two moving mechanisms are installed at the bottom of the moving frame and the bottom of the moving shell correspondingly; according to the medical leg joint rehabilitation training equipment, swelling and pain of knee joints of a patient are relieved, then the effect of deeply relaxing muscles of the knee joints of the patient is achieved, the patient can be in a rehabilitation training state, effective bending and stretching training of the knee joints of the patient is achieved through cooperation with a traction mechanism, and the rehabilitation training efficiency is improved. Further, effective rehabilitation training can be carried out on the knee joints of the legs of the patient.

Description

Technical Field

[0001] The invention relates to the technical field of leg joint rehabilitation training, in particular to medical leg joint rehabilitation training equipment. Background Art

[0002] The knee joint is located in the leg, connecting the thigh bone and the calf bone. It is a key joint in the leg. At the same time, the knee joint is an important part of the leg and plays a vital role in the movement and support of the lower limbs. At present, for patients with knee osteoarthritis, when undergoing postoperative rehabilitation training after total knee replacement, the knee joint will become swollen and stiff after the operation, which will make it more difficult for patients to perform rehabilitation training. Although the existing leg rehabilitation training equipment is used to assist patients in rehabilitation, such as the existing patent application number: CN201810949083.7, which discloses: a knee joint functional rehabilitation therapy machine that can change the training range, has a variety of training programs, and has good massage effects, and the patent application number: CN202110663072.4, which discloses: a limited rehabilitation training device after hip replacement surgery, which realizes exercise training of different methods, exercise postures and different intensities for patients, and the overall operation and use are convenient, and the whole can be disassembled and carried.

[0003] However, during the actual rehabilitation process of the patient, the equipment is used to directly perform rehabilitation training on the patient's knee joint. Due to the swelling and stiffness of the patient's knee joint, the muscles at the knee joint are always in a tense state. In this state, the patient is affected by the pain and swelling, making it difficult to cooperate with the existing equipment for good rehabilitation training, which further makes it difficult for the patient to complete the training, thereby affecting the rehabilitation of the knee joint function. Summary of the invention

[0004] The purpose of the present invention is to provide a medical leg joint rehabilitation training device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a medical leg joint rehabilitation training device, comprising a support rail and two support frames installed at the bottom of the support rail, and the support frames can be detachably installed on one side of a hospital bed, and also includes: A movable frame and a movable shell, wherein the movable frame and the movable shell are both slidably connected to the support rail; A moving mechanism, wherein two moving mechanisms are provided, and the two moving mechanisms are respectively installed at the bottom of the moving frame and the moving shell, and the moving frame and the moving shell are connected to the support rail through the moving mechanisms at the bottom thereof; A knee joint relaxing and lifting mechanism, which is located at the mobile shell and relaxes the tensed muscles at the knee joint when the knee joint is trained; The cooperating traction mechanism is located at the moving frame, and the cooperating traction mechanism cooperates with the knee joint relaxation and lifting mechanism to perform rehabilitation training on the patient's knee joint.

[0006] Wherein, the knee joint relaxation and lifting mechanism comprises a winding mechanism installed inside the movable shell, a traction rope is installed at the winding mechanism, and a through hole for moving the traction rope is provided at the bottom of the movable shell; A support plate is installed at one end of the traction rope below the moving shell, a connecting mechanism is installed at the support plate, a fixing plate is installed at the bottom of the connecting mechanism, and a release piece is installed at the bottom of the fixing plate.

[0007] The winding mechanism comprises a first fixed seat and a second fixed seat installed inside the movable shell, the first fixed seat is rotatably connected to a winding wheel, a driving motor for driving the winding wheel is installed at the first fixed seat, and the traction rope is wound around the winding wheel; The second fixing seat is rotatably connected with a guide wheel, and the guide wheel is used to guide the traction rope, and the traction rope is wound up through the provided winding mechanism.

[0008] Wherein, the connection mechanism comprises two lifting screw rods rotatably connected to the bottom of the support plate, and a synchronization member for synchronously driving the two lifting screw rods is installed on the support plate; A lifting sleeve is threadedly sleeved on the outer side of the bottom of the lifting screw rod, and the two lifting sleeves are fixedly mounted on the fixed plate, and the mobile frame or the mobile shell is connected through a connecting mechanism.

[0009] Wherein, the release member comprises two support shafts rotatably connected to a fixed plate, the fixed plate is provided with a receiving groove, and a reverse member for driving the two support shafts in reverse is installed at the receiving groove; A contact plate is fixedly installed at the support shaft, the contact plate is provided with a groove, a plurality of contact pieces are provided on the contact plate and at the bottom of the groove, and the contact plate is used to release scars at the patient's knee joint through the plurality of contact pieces; A pressing piece is installed at the bottom of the contact plate, and the contact plate further loosens the scar at the patient's knee joint through the pressing piece; A support belt is installed between the bottoms of the two contact plates, and the support belt is used to lift the patient's knee joint. The relaxation piece is provided to relax the scar on the patient's knee joint.

[0010] Wherein, the reverse member comprises a driving motor installed inside the accommodating groove, a first rotating gear is fixedly installed on the output end of the driving motor, a second rotating gear is meshedly connected to the outer side of the first rotating gear, a gear chain is transmission-connected to the outer side of the first rotating gear, a third rotating gear is transmission-connected to the inner side of the gear chain, and the second rotating gear and the third rotating gear are respectively fixedly sleeved on the outer sides of two supporting shafts; Two guide wheels for guiding the gear chain are installed at the receiving groove, and the reverse rotation of the two supporting shafts is achieved through the reverse member.

[0011] Wherein, the contact member comprises a connecting rod that slides through the release plate, a massage block is fixedly mounted on one end of the connecting rod located inside the contact plate, and a limit plate is fixedly connected to one end of the connecting rod located outside the contact plate; The contact plate is provided with a limit groove, and a positioning plate is slidably connected to the limit groove, and the positioning plate is fixedly sleeved on the outside of the connecting rod. One side of the positioning plate is fixedly connected with a connecting spring, and the connecting spring is sleeved on the outside of the connecting rod, and the other end of the connecting spring is fixedly connected to the limit groove, and the contact piece is provided to achieve the effect of contact massage on the patient's knee joint.

[0012] The pressing member comprises a plurality of pressing wheels which are equidistantly mounted at the bottom of the contact plate, and the pressing member is provided to achieve the function of pressing training on the patient's knee joint.

[0013] Wherein, the movable frame is provided with a movable opening, and a matching traction mechanism passes through the movable opening, the matching traction mechanism includes two electric push rods passing through the movable opening, and an adjusting member for connecting the two electric push rods is installed on the movable frame; A connecting piece is installed at the bottom of the electric push rod, and the connecting piece includes a connecting block fixedly installed at the bottom of the electric push rod, a rotating groove is provided at the connecting block, and a rotating ball is rotatably connected to the rotating groove, an extension rod is fixedly connected to the rotating ball, and a clamping plate for clamping the ankle is fixedly installed at one end of the extension rod away from the rotating ball, and the cooperative traction mechanism is provided, so that the patient's knee joint can be exercised in a coordinated manner.

[0014] The adjusting member comprises two side plates installed on a movable frame, a bidirectional threaded rod is rotatably connected between the two side plates, and a handle for driving the bidirectional threaded rod is installed on one of the side plates, two movable blocks are threadedly connected to the outer side of the bidirectional threaded rod, and the two movable blocks are slidably connected to the movable frame, and the two movable blocks are respectively fixedly sleeved on the outer side of the electric push rod, and the adjusting member is provided to adjust the distance between the two electric push rods and simultaneously realize the function of connecting the two electric push rods.

[0015] The present invention has at least the following beneficial effects: The present invention is provided with a knee joint relaxation and lifting mechanism, so that when performing postoperative rehabilitation training on the patient's knee joint, the scar at the patient's knee joint can be massaged and relaxed first, thereby further alleviating the swelling and pain at the patient's knee joint, and then achieving the effect of deeply relaxing the muscles at the patient's knee joint, so that the patient is in a state for rehabilitation training, and by cooperating with the traction mechanism, effective bending and stretching training can be achieved for the patient's knee joint, further ensuring that the patient's knee joint can undergo effective rehabilitation training.

[0016] When the present invention is used, firstly, the support frame and the support rail are arranged, so that the rehabilitation device of the present invention can be placed beside the patient's bed, which is convenient for mobile use, thereby facilitating the patient to carry out effective rehabilitation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view schematic diagram of the overall mechanism of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the support rail of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mobile shell of the present invention; Figure 5 It is a schematic diagram of the structure of the mobile block of the present invention; Figure 6 It is a structural schematic diagram of the winding mechanism of the present invention; Figure 7 This is a schematic diagram of the support shaft structure of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of the middle A area; Fig. 9 It is a schematic diagram of the side view structure of the contact plate of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of the middle B area; Fig.11 This is a schematic diagram of the structure of the mobile rack of the present invention; Fig.12 It is a schematic diagram of the structure of the rotating ball of the present invention; Fig.13 This is a schematic diagram of the leg press training state of the present invention; Fig.14 It is a schematic diagram of the leg resistance knee flexion training state of the present invention.

[0018] In the figure: 1-support rail; 11-first groove; 12-second groove; 2-support frame; 3-movable frame; 4-movable shell; 5-movable mechanism; 51-travel wheel; 52-guide rack; 53-protective shell; 54-rotating motor; 55-rotating gear; 6-knee joint relaxation and lifting mechanism; 61-winding mechanism; 611-first fixed seat; 612-second fixed seat; 613-winding wheel; 614-driving motor; 615-guide wheel; 62-traction rope; 63-support plate; 64-connecting mechanism; 641-lifting screw rod; 642-synchronizing member; 6421-synchronous motor; 6422-synchronous gear; 6423-gear belt; 643-lifting sleeve; 65-fixed plate; 651 -accommodating groove; 66-relaxing member; 661-support shaft; 662-contact plate; 6621-limiting groove; 663-pressing member; 6631-pressing wheel; 664-support belt; 7-cooperating traction mechanism; 71-electric push rod; 72-adjusting member; 721-side plate; 722-bidirectional threaded rod; 723-handle; 724-moving block; 73-connecting member; 731-connecting block; 732-rotating ball; 733-extension rod; 734-clamping plate; 8-reverse member; 81-first rotating gear; 82-second rotating gear; 83-gear chain; 84-third rotating gear; 9-contact member; 91-connecting rod; 92-massage block; 93-limiting plate; 94-positioning plate; 95-connecting spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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. Embodiment 1

[0020] A medical leg joint rehabilitation training device comprises a support rail 1 and two support frames 2 installed at the bottom of the support rail 1, and the support frame 2 is detachably installed on one side of a bed. In this embodiment, the support frame 2 is composed of a telescopic support leg and a clamping plate at the bottom, and the locking bolts at the bottom of the clamping plate enable the support frame 2 to fix the support rail 1 on the bedside, and facilitate the disassembly of the support frame 2 as a whole. It also includes: The movable frame 3 and the movable shell 4 are both slidably connected to the supporting guide rail 1; Moving mechanism 5, two moving mechanisms 5 are provided, and the two moving mechanisms 5 are respectively installed at the bottom of the moving frame 3 and the moving shell 4, and the moving frame 3 and the moving shell 4 are connected to the support rail 1 through the moving mechanism 5 at the bottom thereof, and in this embodiment, the moving frame 3 and the moving shell 4 are driven by the moving mechanism 5, so as to be able to move relative to the support frame 2; A knee joint relaxing and lifting mechanism 6, which is located at the moving shell 4 and relaxes the tensed muscles at the knee joint when the knee joint is trained; The knee joint relaxation and lifting mechanism 6 comprises a reeling mechanism 61 installed inside the moving shell 4, a traction rope 62 is installed at the reeling mechanism 61, and a through hole for moving the traction rope 62 is provided at the bottom of the moving shell 4; The winding mechanism 61 includes a first fixed seat 611 and a second fixed seat 612 installed inside the moving shell 4, a winding wheel 613 is rotatably connected to the first fixed seat 611, and a driving motor 614 for driving the winding wheel 613 is installed at the first fixed seat 611, and the traction rope 62 is wound around the winding wheel 613; The second fixing seat 612 is rotatably connected to a guide wheel 615, and the guide wheel 615 is used to guide the traction rope 62; The motor 614 is driven to rotate forward and reverse, so that the reel 613 rotates, and under the guidance of the guide wheel 615, the traction rope 62 is reeled or unreeled; A support plate 63 is installed at one end of the traction rope 62 below the moving shell 4, a connecting mechanism 64 is installed at the supporting plate 63, and a fixing plate 65 is installed at the bottom of the connecting mechanism 64; The connecting mechanism 64 includes two lifting screws 641 rotatably connected to the bottom of the support plate 63, and a synchronous member 642 for synchronously driving the two lifting screws 641 is installed on the support plate 63. The synchronous member 642 is a synchronous motor 6421 installed on the support plate 63, and the output end of the synchronous motor 6421 is fixedly connected to one of the lifting screws 641, and a synchronous gear 6422 is installed on the top of the two lifting screws 641, and a gear belt 6423 is transmission-connected between the two synchronous gears 6422; The outer side of the bottom of the lifting screw rod 641 is threadedly sleeved with a lifting sleeve 643, and the two lifting sleeves 643 are fixedly mounted on the fixing plate 65; When in use, the synchronous motor 6421 is operated to rotate one of the lifting screws 641, and due to the transmission action of the synchronous gear 6422 and the gear belt 6423, the two lifting screws 641 are further rotated synchronously. When the lifting screw 641 rotates, due to the connection action of the lifting sleeve 643, the two lifting sleeves 643 further synchronously drive the fixing plate 65 to move upward or downward along the vertical plane.

[0021] A release member 66 is installed at the bottom of the fixed plate 65. The release member 66 includes two support shafts 661 rotatably connected to the fixed plate 65. The fixed plate 65 is provided with a receiving groove 651, and a reverse member 8 for reversely driving the two support shafts 661 is installed at the receiving groove 651. The reverse member 8 includes a driving motor 614 installed inside the receiving groove 651, a first rotating gear 81 is fixedly installed on the output end of the driving motor 614, a second rotating gear 82 is meshedly connected to the outer side of the first rotating gear 81, a gear chain 83 is transmission-connected to the outer side of the first rotating gear 81, a third rotating gear 84 is transmission-connected to the inner side of the gear chain 83, and the second rotating gear 82 and the third rotating gear 84 are respectively fixedly sleeved on the outer sides of the two supporting shafts 661; Two guide wheels 615 for guiding the gear chain 83 are installed at the receiving groove 651, that is, under the transmission limit of the two guide wheels 615, the gear chain 83 is always not in contact with the second rotating gear 82. At the same time, in this embodiment, the first rotating gear 81, the second rotating gear 82 and the third rotating gear 84 are of the same size, so as to ensure that the two supporting shafts 661 at the second rotating gear 82 and the third rotating gear 84 can ensure synchronous rotation; A contact plate 662 is fixedly installed at the support shaft 661, and a groove is provided on the contact plate 662. A plurality of contact members 9 are provided on the contact plate 662 and at the bottom of the groove. The contact plate 662 is used to release scars at the patient's knee joint through the plurality of contact members 9. The contact member 9 includes a connecting rod 91 that slides through the release plate, and a massage block 92 is fixedly installed at one end of the connecting rod 91 located inside the contact plate 662, and the massage block 92 is set in a hemispherical shape, so as to perform a stable massage on the patient's knee joint, and one end of the connecting rod 91 located outside the contact plate 662 is fixedly connected to a limit plate 93; The contact plate 662 is provided with a limiting groove 6621, and a positioning plate 94 is slidably connected to the limiting groove 6621. The positioning plate 94 is fixedly sleeved on the outside of the connecting rod 91. A connecting spring 95 is fixedly connected to one side of the positioning plate 94, and the connecting spring 95 is sleeved on the outside of the connecting rod 91. The other end of the connecting spring 95 is fixedly connected to the limiting groove 6621. A pressing member 663 is installed at the bottom of the contact plate 662. The contact plate 662 further releases the scar at the patient's knee joint through the pressing member 663. The pressing member 663 includes a plurality of pressing wheels 6631 installed at equal distances at the bottom of the contact plate 662. A support belt 664 is installed between the bottom of the two contact plates 662, and the support belt 664 is used to lift the patient's knee joint. In this embodiment, the support belt 664 is relatively long, and when the contact plate 662 moves up and down relative to the patient's knee, it will not affect the support belt 664.

[0022] Specific implementation process: when performing rehabilitation training for the knee joint after surgery, first install the support rail 1 next to the bed through two support frames 2, and at the same time, close to the patient's affected limb side. Then, pass the patient's leg through the support belt 664 through the support belt 664 until the support belt 664 is located at the popliteal fossa position on the back side of the knee joint. Then the support belt 664 stops moving, and the patient's affected limb is in a straightened state, that is, the central section of the support belt 664 is compressed; At this time, the two contact plates 662 have a certain height relative to the patient's knee, and the synchronous member 642 operates, so that the fixed plate 65 drives the two contact plates 662 at its bottom to move downward relative to the patient's knee, and while moving downward, on the one hand, the multiple pressing blocks located at the bottom of the contact plate 662 press the patient's patella, and on the other hand, while the two contact plates 662 move downward, the angle formed between them gradually increases until the two contact plates 662 move to the outside of the knee, and then the two contact plates 662 are driven by the reverse member 8, so that the two contact plates 662 rotate toward each other, and while rotating toward each other, on the one hand, the synchronous member 642 operates, so that the fixed plate 65 drives the two contact plates 662 to move upward relatively slowly, and on the other hand, the two contact plates 662 massage and release the scars on the patient's knee through the multiple massage blocks 92 thereon, and the two contact plates 662 move up and down cyclically, so as to massage and relax the muscles and joint capsule deep in the patient's knee joint, which is convenient for the patient's subsequent rehabilitation training; The cooperating traction mechanism 7 is located at the moving frame 3, and the cooperating traction mechanism 7 cooperates with the knee joint relaxation and lifting mechanism 6 to perform rehabilitation training on the patient's knee joint. The moving frame 3 is provided with a moving opening, and the cooperating traction mechanism 7 passes through the moving opening. The cooperating traction mechanism 7 includes two electric push rods 71 ​​passing through the moving opening, and the moving frame 3 is installed with an adjusting member 72 for connecting the two electric push rods 71; The adjusting member 72 includes two side plates 721 installed on the moving frame 3, a bidirectional threaded rod 722 is rotatably connected between the two side plates 721, and a handle 723 for driving the bidirectional threaded rod 722 is installed on one of the side plates 721, two moving blocks 724 are threadedly connected to the outer side of the bidirectional threaded rod 722, and the two moving blocks 724 are slidably connected to the moving frame 3, and the two moving blocks 724 are respectively fixedly sleeved on the outer side of the electric push rod 71; That is, by rotating the handle 723, the bidirectional threaded rod 722 is further rotated, and when the bidirectional threaded rod 722 rotates, the two moving blocks 724 thereon are provided with driving forces in opposite directions, so that under the limiting effect of the moving opening, the positions of the two electric push rods 71 ​​are adjusted; A connecting piece 73 is installed at the bottom of the electric push rod 71, and the connecting piece 73 includes a connecting block 731 fixedly installed at the bottom of the electric push rod 71, a rotating groove is provided at the connecting block 731, and a rotating ball 732 is rotatably connected to the rotating groove. In this embodiment, the rotating ball 732 is relatively matched and arranged at the rotating groove, an extension rod 733 is fixedly connected to the rotating ball 732, and a clamping plate 734 for clamping the ankle is fixedly installed at one end of the extension rod 733 away from the rotating ball 732, the clamping plate 734 is arranged in an arc shape, and a buffer pad is provided on the inner side of the clamping plate 734, so that the two clamping plates 734 can clamp and fix the patient's knee joint.

[0023] Specific implementation process: When performing rehabilitation training on the knee joint of the patient's leg, the patient lies flat on the bed, and firstly the support belt 664 is put on the patient's knee joint, and at the same time, the patient's ankle is fixed by two clamping plates 734; First, massage the patient's knee joint to relax it, which can completely loosen the scar on the patient's knee joint and relax the muscles at the same time. The first step of the exercise is to operate the winding mechanism 61, and at the same time cooperate with the moving mechanism 5 at the bottom of the moving shell 4 to move relative to the support rail 1, and lift the patient's popliteal fossa through the support belt 664, and at the same time, the two contact plates 662 are kept relatively close to each other, so as to lift the patient's thigh position, so that the patient's thigh position is perpendicular to the bed. At the same time, through the cooperation of the electric push rod 71 and the moving mechanism 5 at the moving frame 3, the calf and thigh are driven to be 90° vertical, as shown in the accompanying drawings of the specification. Fig.13 ; The two electric push rods 71 ​​push the two clamping plates 734 to slowly press down the ankles of the patient, and at the same time, the patient's knee joint is slowly bent for rehabilitation training. In this embodiment, when the patient is actually using the electric push rods 71, the patient can control the pressing force of the electric push rods 71 ​​through a remote control, so as to effectively train the knee joint according to his own situation. After the push-down training is completed, the patient's thigh is slowly moved downward under the action of the support belt 664, and the electric push rod 71 and the moving mechanism 5 are moved together, until the patient's sole is in close contact with the bed surface, as shown in the accompanying drawings of the specification. Fig.14 At this time, the patient's knee is still in a 90° bent state, and the support belt 664 stops moving. The two electric push rods 71 ​​slowly contract, and the moving mechanism 5 at the moving frame 3 moves slightly, so that the two clamping plates 734 slowly stretch the patient's ankle upward, thereby performing resistance knee flexion training on the patient, thereby rehabilitating the patient's thigh and calf muscle strength, and further achieving effective rehabilitation training for the patient's knee flexion. Embodiment 2

[0024] Embodiment 2 is a further supplementary description of the moving mechanism 5 in Embodiment 1, specifically: a first groove 11 and a second groove 12 are respectively provided on both sides of the support rail 1, the moving mechanism 5 includes two running wheels 51 rotatably connected to the bottom of the moving frame 3 or the moving shell 4, the running wheels 51 are slidably connected to the first groove 11, a guide rack 52 is installed at the second groove 12, a protective shell 53 is installed on one side of the moving frame 3 or the moving shell 4, a rotating motor 54 is installed inside the protective shell 53, a rotating gear 55 is fixedly installed at the output end of the rotating motor 54, and the rotating gear 55 is meshed and connected with the guide rack 52; Therefore, when the moving frame 3 or the moving shell 4 moves relative to the supporting guide rail 1, the rotating motor 54 on the moving frame 3 or the moving shell 4 operates, thereby rotating the rotating gear 55, and then the moving frame 3 or the moving shell 4 moves along the supporting rail under the limiting action of the walking wheel 51.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical leg joint rehabilitation training device, comprising a support rail (1) and two support frames (2) mounted at the bottom of the support rail (1), wherein the support frames (2) are detachably mounted on one side of a hospital bed, characterized in that: Also included are: A movable frame (3) and a movable shell (4), wherein the movable frame (3) and the movable shell (4) are both slidably connected to the support rail (1); A moving mechanism (5), wherein two moving mechanisms (5) are provided, and the two moving mechanisms (5) are respectively installed at the bottom of the moving frame (3) and the moving shell (4), and the moving frame (3) and the moving shell (4) are both connected to the support rail (1) via the moving mechanisms (5) at the bottom thereof; A knee joint relaxing and lifting mechanism (6), wherein the knee joint relaxing and lifting mechanism (6) is located at the movable shell (4) and relaxes the tensed muscles at the knee joint when the knee joint is trained; A matching traction mechanism (7) is located on the moving frame (3), and the matching traction mechanism (7) cooperates with the knee joint relaxation and lifting mechanism (6) to perform rehabilitation training on the patient's knee joint.

2. A medical leg joint rehabilitation training device according to claim 1, characterized in that: The knee joint relaxation and lifting mechanism (6) comprises a reeling mechanism (61) installed inside the movable shell (4), a traction rope (62) being installed at the reeling mechanism (61), and a through hole for moving the traction rope (62) is provided at the bottom of the movable shell (4); A support plate (63) is installed at one end of the traction rope (62) located below the moving shell (4), a connecting mechanism (64) is installed at the support plate (63), a fixing plate (65) is installed at the bottom of the connecting mechanism (64), and a release member (66) is installed at the bottom of the fixing plate (65).

3. A medical leg joint rehabilitation training device according to claim 2, characterized in that: The reeling mechanism (61) comprises a first fixed seat (611) and a second fixed seat (612) mounted inside the movable shell (4); a reeling wheel (613) is rotatably connected to the first fixed seat (611); a driving motor (614) for driving the reeling wheel (613) is mounted on the first fixed seat (611); and the traction rope (62) is wound around the reeling wheel (613); The second fixing seat (612) is rotatably connected to a guide wheel (615), and the guide wheel (615) is used to guide the traction rope (62).

4. The medical leg joint rehabilitation training device according to claim 2, characterized in that: The connection mechanism (64) comprises two lifting screw rods (641) rotatably connected to the bottom of the support plate (63); a synchronizing member (642) for synchronously driving the two lifting screw rods (641) is mounted on the support plate (63); A lifting sleeve (643) is threadedly sleeved on the outer side of the bottom of the lifting screw rod (641), and the two lifting sleeves (643) are fixedly mounted on the fixing plate (65).

5. A medical leg joint rehabilitation training device according to claim 2, characterized in that: The release member (66) comprises two support shafts (661) rotatably connected to the fixed plate (65); the fixed plate (65) is provided with a receiving groove (651), and a reversing member (8) for driving the two support shafts (661) in reverse is installed at the receiving groove (651); A contact plate (662) is fixedly mounted on the support shaft (661), the contact plate (662) is provided with a groove, a plurality of contact pieces (9) are provided on the contact plate (662) and at the bottom of the groove, and the contact plate (662) is used to release scars on the patient's knee joint via the plurality of contact pieces (9); A pressing piece (663) is installed at the bottom of the contact plate (662), and the contact plate (662) further loosens the scar at the patient's knee joint through the pressing piece (663); A support belt (664) is installed between the bottoms of the two contact plates (662), and the support belt (664) is used to lift the patient's knee joint.

6. The medical leg joint rehabilitation training device according to claim 5, characterized in that: The reverse member (8) comprises a driving motor (614) installed inside the receiving groove (651); a first rotating gear (81) is fixedly installed on the output end of the driving motor (614); a second rotating gear (82) is meshingly connected to the outer side of the first rotating gear (81); a gear chain (83) is transmission-connected to the outer side of the first rotating gear (81); a third rotating gear (84) is transmission-connected to the inner side of the gear chain (83); and the second rotating gear (82) and the third rotating gear (84) are respectively fixedly sleeved on the outer sides of two supporting shafts (661); Two guide wheels (615) for guiding the gear chain (83) are installed at the accommodating groove (651).

7. The medical leg joint rehabilitation training device according to claim 5, characterized in that: The contact member (9) comprises a connecting rod (91) that slides through the release plate, a massage block (92) being fixedly mounted on one end of the connecting rod (91) located inside the contact plate (662), and a limit plate (93) being fixedly connected to one end of the connecting rod (91) located outside the contact plate (662); The contact plate (662) is provided with a limiting groove (6621), and a positioning plate (94) is slidably connected to the limiting groove (6621), and the positioning plate (94) is fixedly sleeved on the outside of the connecting rod (91), and a connecting spring (95) is fixedly connected to one side of the positioning plate (94), and the connecting spring (95) is sleeved on the outside of the connecting rod (91), and the other end of the connecting spring (95) is fixedly connected to the limiting groove (6621).

8. The medical leg joint rehabilitation training device according to claim 5, characterized in that: The pressing member (663) comprises a plurality of pressing wheels (6631) installed at equal distances on the bottom of the contact plate (662).

9. A medical leg joint rehabilitation training device according to claim 1, characterized in that: The movable frame (3) is provided with a movable opening, and a matching traction mechanism (7) passes through the movable opening, the matching traction mechanism (7) comprises two electric push rods (71) passing through the movable opening, and an adjusting member (72) for connecting the two electric push rods (71) is installed on the movable frame (3); A connecting member (73) is installed at the bottom of the electric push rod (71), and the connecting member (73) comprises a connecting block (731) fixedly installed at the bottom of the electric push rod (71), a rotating groove is provided at the connecting block (731), and a rotating ball (732) is rotatably connected to the rotating groove, an extension rod (733) is fixedly connected to the rotating ball (732), and a clamping plate (734) for clamping the ankle is fixedly installed at one end of the extension rod (733) away from the rotating ball (732).

10. The medical leg joint rehabilitation training device according to claim 9, characterized in that: The adjusting member (72) comprises two side plates (721) mounted on the moving frame (3); a bidirectional threaded rod (722) is rotatably connected between the two side plates (721); a handle (723) for driving the bidirectional threaded rod (722) is mounted on one of the side plates (721); two moving blocks (724) are threadedly connected to the outer side of the bidirectional threaded rod (722); the two moving blocks (724) are slidably connected to the moving frame (3); and the two moving blocks (724) are respectively fixedly sleeved on the outer side of the electric push rod (71).

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