Knee joint rehabilitation auxiliary exercise device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a knee joint rehabilitation auxiliary exercise device which comprises a base, a containing groove is formed in one end of the top of the base, a seat is installed at the other end of the top of the base, an adjusting mechanism is installed on the inner side of the containing groove, and two sets of connecting rods are installed on the adjusting mechanism. A pedal is installed on the connecting rod, a locking and limiting mechanism is installed on the pedal, the locking and limiting mechanism comprises a clamping assembly, a buckling and pulling assembly and a limiting and rebounding assembly, the clamping assembly is used for locking the position of the limiting and rebounding assembly, and the buckling and pulling assembly is used for unlocking the position of the limiting and rebounding assembly. The limiting springback assembly is used for fitting and positioning the legs of the person; the leg fixing device is simple in structure and convenient to operate, legs of patients with different thicknesses can be limited, fixed or unlocked by extruding, buckling and pulling, and the situation that the exercise effect of the patients is affected due to repeated slipping during exercise is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a knee joint rehabilitation auxiliary exercise device. Background Art

[0002] Knee joint rehabilitation devices are mainly used for rehabilitation care and rehabilitation exercises of patients' knee joints. They play an extremely important role in the recovery of patients' knee joints after surgery. Most of the current rehabilitation devices use fixed or mechanical types to fix and care for patients' knee joints. However, for patients, the recovery period of fixed rehabilitation devices is relatively long, and the size of the external force of mechanical rehabilitation devices cannot be effectively adjusted according to the patient's personal needs. Excessive external force will cause damage to the patient's knee joint, and too small an external force will weaken the treatment effect.

[0003] In order to solve the above technical problems, a Chinese patent with announcement number CN215689559U in the prior art discloses a knee joint rehabilitation device, which includes a base plate, limiting side plates are respectively provided on both sides of the front end of the base plate, and a seat plate is fixedly connected to the rear end of the base plate; a rehabilitation exercise device is provided on the base plate, and the rehabilitation exercise device includes a hand driving structure and a rehabilitation exercise structure connected to the hand driving structure: the hand driving structure is connected to a pair of eccentric wheels rotatably connected to the base plate, and the eccentric wheels are connected to the rehabilitation exercise structure; the rehabilitation exercise structure is connected to a sliding rod.

[0004] Although the above-mentioned existing technical solutions can effectively perform rehabilitation exercises for the knee joints according to individual needs, when patients place their legs on the placement board, due to the different fatness, thickness and size of the patients' legs, the legs are very likely to slip off the placement board during bending exercises, and the patients have to put their legs back in place, which affects the patients' exercise effect. Utility Model Content

[0005] The purpose of the present invention is to provide a knee joint rehabilitation auxiliary exercise device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A knee joint rehabilitation auxiliary exercise device includes a base, a placement groove is provided at one end of the top of the base, a seat is installed at the other end of the top of the base, an adjustment mechanism is installed on the inner side of the placement groove, two sets of connecting rods are installed on the adjustment mechanism, pedals are installed on the connecting rods, and a locking and limiting mechanism is installed on the pedals. The locking and limiting mechanism includes a clamping assembly, a buckle and pull assembly and a limit rebound assembly. The clamping assembly is used to lock the position of the limit rebound assembly, and the buckle and pull assembly is used to unlock the lock of the position of the limit rebound assembly. The limit rebound assembly is used to fit and position the legs of a person.

[0008] As a preferred solution of the present invention, the limit rebound assembly includes two groups of positioning sleeves overlapped on the top of the pedal, reset grooves are provided on both sides of the inner wall of the positioning sleeves, and reset blocks are slidably connected to the inner side of the reset grooves. The cross-sections of the reset blocks and the reset grooves are both T-shaped, an extrusion plate is installed between the two groups of reset blocks, and rubber pads are installed on the opposite surfaces of the two groups of extrusion plates, and a reset spring is installed between one side of the extrusion plate and the inner wall of the positioning sleeve.

[0009] As a preferred solution of the present invention, a limiting groove is provided at the top of the pedal, a limiting block is slidably connected to the inner side of the limiting groove, one end of the limiting block is fixedly connected to one end of the positioning sleeve, and the side sections of the limiting block and the limiting groove are both T-shaped.

[0010] As a preferred solution of the present invention, the clamping assembly includes two groups of fitting seats installed on one side of two groups of positioning sleeves, one group of the fitting seats is provided with a clamping block on one side, the other group of the fitting seats is provided with a clamping groove slidably connected to the clamping block on one side, and the other group of the fitting seats is provided with a compression groove on one side of the clamping groove, a compression plate is slidably connected to the inside of the compression groove, and a first spring is installed between both ends of one side of the compression plate and the inner wall of the compression groove.

[0011] As a preferred solution of the present invention, the side cross-section of the compression plate is T-shaped, the side cross-section of the clamping block is L-shaped, and the fitting ends of the compression plate and the clamping block are both provided with mutually fitting slopes.

[0012] As a preferred solution of the present invention, the buckle and pull assembly includes a pull rod installed on one side of the compression plate and located between two groups of first springs, one group of the fitting seats has an operating groove on the top end, and the pull rod extends to one end inside the operating groove and is rotatably connected to a pull ring, and a positioning column is installed on one side of the inner wall of the operating groove, and the side cross-section of the positioning column is L-shaped, one group of the fitting seats has a sliding groove on the top side of the operating groove, a sliding plate is slidably connected to the inner side of the sliding groove, a synchronization groove is opened on one side of the inner wall of the sliding groove, a synchronization block slidably connected to the synchronization groove is installed on one side of the sliding plate, a buckle and pull groove is opened on one side of the sliding plate, a magnetic block is embedded in one end of the sliding plate, and an iron block adsorbed by the magnetic block is embedded on one side of the inner wall of the operating groove.

[0013] As a preferred solution of the present invention, the adjusting assembly includes an adjusting cylinder installed on the inner side of the placement groove, the inner side of the adjusting cylinder is rotatably connected to a threaded rod, the threads at both ends of the outer side of the threaded rod are opposite, and both ends of the threaded rod are threadedly connected to an adjusting plate, the adjusting plate is slidingly connected to the inner side of the adjusting cylinder, one end of the adjusting plate is slidably connected to a movable rod, the outer side of the movable rod is rotatably connected to the connecting rod, and fixed plates are installed at both ends of the top of the base, and the movable rod is rotatably connected to the fixed plate, one side of one group of the fixed plates is installed with a first motor, the driving end of the first motor is fixedly connected to one end of the movable rod, and a second motor is installed on one side of the base, and the driving end of the second motor extends to the inner side of the adjusting cylinder and is fixedly connected to one end of the threaded rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, the position of the limit rebound component is locked by the snap-connecting component, and the buckle and pull component unlocks the position of the limit rebound component. The limit rebound component fits and positions the legs of the person. The structure is simple and the operation is convenient. By squeezing the buckle and pull, the legs of patients of different thicknesses can be limited, fixed or unlocked to prevent repeated slipping during exercise that affects the patient's exercise effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial cross-sectional structural diagram of the clamping assembly and the buckle-pull assembly of the utility model;

[0018] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 1. base; 2. seat; 3. connecting rod; 4. pedal; 5. positioning sleeve; 6. reset block; 7. extrusion plate; 8. rubber pad; 9. reset spring; 10. limit block; 11. fitting seat; 12. slot; 13. compression plate; 14. first spring; 15. positioning column; 16. sliding plate; 17. magnetic block; 18. adjusting cylinder; 19. threaded rod; 20. adjusting plate; 21. first motor; 22. slope. DETAILED DESCRIPTION

[0020] The following will combine 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example:

[0022] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0023] The support frame 2 is a bottom surface of the support frame 2, and the support frame 2 is a bottom surface of the support frame 2. The support frame 2 is a bottom surface of the support frame 2, and the support frame 2 is a bottom surface of the support frame 2.

[0024] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, the limit rebound assembly includes two groups of positioning sleeves 5 overlapped on the top of the pedal 4, and reset grooves are provided on both sides of the inner wall of the positioning sleeve 5. Reset grooves are provided on both sides of the inner wall of the positioning sleeve 5, and a reset block 6 is slidably connected to the inner side of the reset groove. The cross-sections of the reset block 6 and the reset groove are both T-shaped, and an extrusion plate 7 is installed between the two groups of reset blocks 6. The opposite surfaces of the two groups of extrusion plates 7 are installed with rubber pads 8. A reset spring 9 is installed between one side of the extrusion plate 7 and the inner wall of the positioning sleeve 5. A limit groove is provided at the top of the pedal 4, and a limit block 10 is slidably connected to the inner side of the limit groove. One end of the limit block 10 is fixedly connected to one end of the positioning sleeve 5, and the side cross-sections of the limit block 10 and the limit groove are both T-shaped. First, the patient puts his legs on the pedal 4, and then presses the two groups of positioning sleeves 5 to cooperate with the limit block 10 and the limit groove close to the patient's legs, so that the rubber pad 8 fits the leg. According to the thickness of the patient's leg, the extrusion plate 7 can then compress the reset spring 9 to drive the rubber pad 8 to retract.

[0025] In this embodiment, if Figure 1 、 Figure 2 and Figure 3As shown, the clamping assembly includes two groups of fitting seats 11 installed on one side of the two groups of positioning sleeves 5, one of which is provided with a clamping block on one side of the fitting seat 11, and the other is provided with a clamping groove 12 slidably connected to the clamping block on one side of the fitting seat 11, and a compression groove is provided inside the other fitting seat 11 on one side of the clamping groove 12, and a compression plate 13 is slidably connected to the inner side of the compression groove, and a first spring 14 is installed between the two ends of one side of the compression plate 13 and the inner wall of the compression groove. The side cross-section of the compression plate 13 is T-shaped, and the side cross-section of the clamping block is L-shaped. The fitting ends of the pressing plate 13 and the card block are both provided with a slope 22 that fits together. Then, the two groups of fitting seats 11 are pressed to fit together, and the card block enters the inner side of the card slot 12. It abuts against the slope 22 on the pressing plate 13, causing it to compress the two groups of first springs 14 until all the card blocks enter the inner side of the card slot 12. The pressing plate 13 is no longer abutted and then pops out to abut the protruding end of the card block, locking the position of the two groups of positioning sleeves 5. The position limiting rebound component is used to limit and fix the legs of patients of different thicknesses to prevent repeated slipping during exercise.

[0026] In this embodiment, if Figure 1 、 Figure 2 and Figure 3 As shown, the buckle and pull assembly includes a pull rod installed on one side of the compression plate 13 and located between two groups of first springs 14, one of which has an operating groove at the top of one group of fitting seats 11, and the pull rod extends to one end inside the operating groove and is rotatably connected to a pull ring, and a positioning column 15 is installed on one side of the inner wall of the operating groove. The side cross-section of the positioning column 15 is L-shaped, and one of which has a sliding groove at the top of one group of fitting seats 11 and located on one side of the operating groove, and a sliding plate 16 is slidably connected to the inside of the sliding groove, and a synchronous groove is opened on one side of the inner wall of the sliding groove, and a synchronous plate 16 is installed on one side of the sliding plate 16 that is slidably connected to the synchronous groove. Block, one side of the sliding plate 16 is provided with a buckling groove, one end of the sliding plate 16 is embedded with a magnetic block 17, and one side of the inner wall of the operating groove is embedded with an iron block adsorbed with the magnetic block 17. Further, the buckling groove is buckled to cooperate with the synchronous block and the synchronous groove to drive the sliding plate 16 to slide, and the magnetic block 17 and the iron block are no longer adsorbed. Buckle the pull ring on the inside of the operating groove and pull it upward, driving the compression plate 13 at the other end of the pull rod to actively retract, and then temporarily deflect the pull ring and hang it obliquely on the inside of the positioning column 15. At this time, the two sets of fitting seats 11 together with the positioning sleeve 5 can be moved away from the patient's legs to release the limit.

[0027] In this embodiment, if Figure 1 、 Figure 2 and Figure 3As shown, the adjustment assembly includes an adjustment cylinder 18 installed on the inner side of the placement groove, and the inner side of the adjustment cylinder 18 is rotatably connected to a threaded rod 19. The threads at the two ends of the outer side of the threaded rod 19 are opposite, and both ends of the threaded rod 19 are threadedly connected to an adjustment plate 20. The adjustment plate 20 is slidably connected to the inner side of the adjustment cylinder 18, and one end of the adjustment plate 20 is slidably connected to a movable rod. The outer side of the movable rod is rotatably connected to the connecting rod 3. Fixed plates are installed at both ends of the top of the base 1, and the movable rod and the fixed plate are rotatably connected. A first motor 21 is installed on one side of one group of fixed plates, and the driving end of the first motor 21 is fixedly connected to one end of the movable rod. A second motor is installed on one side of the base 1, and the driving end of the second motor extends to the inner side of the adjustment cylinder 18 and is fixedly connected to one end of the threaded rod 19. Furthermore, starting the first motor 21 can drive the movable rod to rotate, and at the same time drive the connecting rod 3 and the pedal 4 to rotate, so that the patient's legs can be rotated and stretched for exercise. Starting the second motor can drive the threaded rod 19 to rotate, so that the two sets of adjustment plates 20 move away from or close to each other, so as to adjust the leg placement position according to the actual needs of the patient.

[0028] The implementation principle of the knee joint rehabilitation auxiliary exercise device in the embodiment of the present application is as follows: the patient puts his legs on the pedal 4, and then presses the two groups of positioning sleeves 5 to cooperate with the limit blocks 10 and the limit grooves to approach the patient's legs, so that the rubber pads 8 fit the legs. According to the thickness of the patient's legs, the extrusion plate 7 can then compress the reset spring 9 to drive the rubber pad 8 to retract, and press the two groups of fitting seats 11 to fit each other, and the blocking blocks enter the inner side of the blocking groove 12, which abuts against the slope 22 on the compression plate 13, so that it compresses the two groups of first springs 14 until the blocking blocks all enter the inner side of the blocking groove 12, and the compression plate 13 is no longer abutted, and then pops out to abut the protruding end of the blocking blocks, locking the positions of the two groups of positioning sleeves 5, and cooperating with the limit rebound component to limit the legs of patients with different thicknesses. The position is fixed to prevent repeated slipping during exercise. Buckle the pull groove to cooperate with the synchronous block and the synchronous groove to drive the sliding plate 16 to slide. The magnetic block 17 and the iron block are no longer adsorbed. Buckle the pull ring on the inside of the operating groove and pull it upward to drive the compression plate 13 at the other end of the pull rod to actively retract, and then temporarily deflect the pull ring and hang it obliquely on the inside of the positioning column 15. At this time, the two sets of fitting seats 11 together with the positioning sleeves 5 can be moved away from the patient's legs, and the limit is released. Starting the first motor 21 can drive the movable rod to rotate, and at the same time drive the connecting rod 3 and the pedal 4 to rotate, so that the patient's legs can be rotated and stretched for exercise. Starting the second motor can drive the threaded rod 19 to rotate, so that the two sets of adjustment plates 20 move away from or close to each other, so as to adjust the leg placement according to the actual needs of the patient.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A knee joint rehabilitation auxiliary exercise device, comprising a base (1), characterized in that: A placement groove is provided at one end of the top of the base (1), and a seat (2) is installed at the other end of the top of the base (1). An adjustment mechanism is installed inside the placement groove, and two groups of connecting rods (3) are installed on the adjustment mechanism. A pedal (4) is installed on the connecting rod (3), and a locking and limiting mechanism is installed on the pedal (4). The locking and limiting mechanism includes a clamping component, a buckle and pull component, and a limit rebound component. The clamping component is used to lock the position of the limit rebound component, and the buckle and pull component is used to unlock the lock of the position of the limit rebound component. The limit rebound component is used to fit and position the legs of a person.

2. The knee joint rehabilitation auxiliary exercise device according to claim 1, characterized in that: The limit rebound assembly comprises two groups of positioning sleeves (5) overlapped on the top of the pedal (4), the inner walls of the positioning sleeves (5) are provided with reset grooves on both sides, the inner sides of the reset grooves are slidably connected with reset blocks (6), the cross sections of the reset blocks (6) and the reset grooves are both T-shaped, an extrusion plate (7) is installed between the two groups of reset blocks (6), the opposite surfaces of the two groups of extrusion plates (7) are installed with rubber pads (8), and a reset spring (9) is installed between one side of the extrusion plate (7) and the inner wall of the positioning sleeve (5).

3. The knee joint rehabilitation auxiliary exercise device according to claim 1, characterized in that: A limiting groove is provided at the top end of the pedal (4), a limiting block (10) is slidably connected to the inner side of the limiting groove, one end of the limiting block (10) is fixedly connected to one end of the positioning sleeve (5), and the side sections of the limiting block (10) and the limiting groove are both T-shaped.

4. The knee joint rehabilitation auxiliary exercise device according to claim 1, characterized in that: The clamping assembly comprises two groups of fitting seats (11) installed on one side of two groups of positioning sleeves (5), one group of the fitting seats (11) has a clamping block on one side, the other group of the fitting seats (11) has a clamping groove (12) slidably connected to the clamping block on one side, and the interior of the other group of the fitting seats (11) is provided with a compression groove on one side of the clamping groove (12), a compression plate (13) is slidably connected to the inner side of the compression groove, and a first spring (14) is installed between the two ends of one side of the compression plate (13) and the inner wall of the compression groove.

5. The knee joint rehabilitation auxiliary exercise device according to claim 4, characterized in that: The side cross-section of the compression plate (13) is T-shaped, the side cross-section of the clamping block is L-shaped, and the fitting ends of the compression plate (13) and the clamping block are both provided with mutually fitting slopes (22).

6. The knee joint rehabilitation auxiliary exercise device according to claim 4, characterized in that: The buckle and pull assembly includes a pull rod installed on one side of the compression plate (13) and located between two groups of first springs (14), wherein an operating groove is provided at the top of one group of the fitting seats (11), and the pull rod extends to one end inside the operating groove and is rotatably connected to a pull ring, and a positioning column (15) is installed on one side of the inner wall of the operating groove, and the side cross-section of the positioning column (15) is L-shaped, and a sliding groove is provided at the top of one group of the fitting seats (11) and located on one side of the operating groove, and a sliding plate (16) is slidably connected to the inner side of the sliding groove, and a synchronous groove is provided on one side of the inner wall of the sliding groove, and a synchronous block slidably connected to the synchronous groove is installed on one side of the sliding plate (16), and a buckle and pull groove is provided on one side of the sliding plate (16), and a magnetic block (17) is embedded and installed at one end of the sliding plate (16), and an iron block adsorbed by the magnetic block (17) is embedded and installed on one side of the inner wall of the operating groove.

7. The knee joint rehabilitation auxiliary exercise device according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting cylinder (18) mounted on the inner side of the placement groove, the inner side of the adjusting cylinder (18) is rotatably connected to a threaded rod (19), the threads at the outer ends of the threaded rod (19) are opposite, both ends of the threaded rod (19) are threadedly connected to an adjusting plate (20), the adjusting plate (20) is slidably connected to the inner side of the adjusting cylinder (18), one end of the adjusting plate (20) is slidably connected to a movable rod, the outer side of the movable rod is rotatably connected to the connecting rod (3), fixed plates are mounted on both ends of the top of the base (1), the movable rod is rotatably connected to the fixed plate, one side of one group of the fixed plates is mounted with a first motor (21), the driving end of the first motor (21) is fixedly connected to one end of the movable rod, a second motor is mounted on one side of the base (1), the driving end of the second motor extends to the inner side of the adjusting cylinder (18) and is fixedly connected to one end of the threaded rod (19).

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