Multifunctional lower limb training device

Abstract

The present invention provides a multifunctional lower limb training device, comprising: a bed; a training module, comprising a support frame supported on the bed, a flip board rotatably connected to the support frame, a thigh fixing structure and a calf fixing structure, wherein the thigh fixing structure and the calf fixing structure support the flip board and are both movable along a predetermined track, the thigh fixing structure is used to fix the thigh of a trainee lying on the bed, and the calf fixing structure is used to fix the calf of the trainee. The training device can actively realize the training of the lower limbs.

Description

Technical Field

[0001] The invention relates to the field of medical rehabilitation, and in particular to a multifunctional lower limb training device. Background Art

[0002] With the development trend of global population aging, the number of cases of cerebrovascular and nervous system diseases is increasing, which also leads to lower limb dysfunction, seriously affecting the normal life of patients. Therefore, rehabilitation training for lower limb function has become a very critical medical means. Most of the lower limb rehabilitation medical equipment on the market currently have certain limitations in actual use. Rehabilitation training, such as treadmill training machines, requires patients to get out of bed after having a certain muscle strength in the hemiplegic part. In the early stage of postoperative rehabilitation, patients can only rest in bed because they have no muscle strength in the hemiplegic part. Therefore, in order to restore lower limb function as soon as possible and reduce the possibility of disability, early intervention bedside passive training rehabilitation equipment came into being. Most of the common traditional early postoperative rehabilitation training is one-on-one rehabilitation training by medical therapists or accompanying personnel. This method has high labor intensity and is difficult to ensure continuity and stability. In addition, due to the differences in the level of therapists, the quality of postoperative rehabilitation of patients is also quite different. Another traditional training is that patients stand or bend on the training bed for training. The power source of this method mainly relies on manpower to assist, and there are certain safety hazards due to the tying of the straps. The existing airbag-type bedside assisted rehabilitation equipment mainly stimulates human muscles for assisted rehabilitation and cannot perform joint movement training, so the overall rehabilitation effect is relatively general; there is also a kind of rehabilitation training equipment that requires the patient's feet to be lifted up to complete the rehabilitation training, which has a certain test on the patient's physical strength and cannot adapt to different training in different rehabilitation periods. Summary of the invention

[0003] The main purpose of the present invention is to provide a multifunctional lower limb training device, which can actively drive the lower limbs to move, and thus can train patients with lower limb weakness.

[0004] In order to achieve the above objectives, the technical solution adopted by the present invention is: a multifunctional lower limb training device, comprising:

[0005] Bed;

[0006] The training module includes a support frame supported on a bed, a flip plate rotatably connected to the support frame, a thigh fixing structure and a calf fixing structure, wherein the thigh fixing structure and the calf fixing structure support the flip plate and are both movable along a predetermined track, the thigh fixing structure is used to fix the thigh of a trainee lying on the bed, and the calf fixing structure is used to fix the calf of the trainee.

[0007] Preferably, the thigh fixing structure is driven by a thigh training driving mechanism, and the calf fixing structure is driven by a calf training driving mechanism. The thigh training driving mechanism and the calf training driving mechanism have the same structure, and both include:

[0008] A first mounting plate, mounted on one side of the flip plate;

[0009] A first screw rod, rotatably disposed on the first mounting plate;

[0010] A first sliding block, threadably matched with the first screw rod;

[0011] A second mounting plate, disposed on the first sliding block;

[0012] A second screw rod is rotatably arranged on the second mounting plate, the second screw rod is perpendicular to the axis of the first screw rod, and the first screw rod and the second screw rod are both parallel to the plane where the flip plate is located;

[0013] The second slider is threadably matched with the second screw rod, and the thigh fixing structure and the calf fixing structure are respectively arranged on the corresponding second sliders.

[0014] Preferably, a first arc groove and a second arc groove are respectively arranged at predetermined tracks corresponding to the thigh fixing structure and the calf fixing structure on the flip plate, and connecting rods are respectively arranged on the second sliders of the thigh training drive mechanism and the calf training drive mechanism, and the two connecting rods respectively pass through the corresponding first arc groove and the second arc groove, and the thigh fixing structure and the calf fixing structure are respectively connected to the corresponding connecting rods.

[0015] Preferably, a first mounting groove and a second mounting groove are respectively provided at positions of the first mounting plates of the flip plate corresponding to the thigh fixing structure and the calf fixing structure, and the two first mounting plates are respectively installed in the first mounting groove and the second mounting groove.

[0016] Preferably, a photoelectric sensor is arranged at one end of the first mounting plate, and a baffle is arranged on the first slider, and the baffle can be moved between the transmitting end and the receiving end of the photoelectric sensor; a limit switch is arranged on one end of the second mounting plate close to the first mounting plate.

[0017] Preferably, it also includes an angle adjustment mechanism for adjusting the rotation angle of the flip plate relative to the support frame, and the angle adjustment mechanism includes:

[0018] A fixed plate, fixed to a side of the support frame close to the end of the bed, the fixed plate extending in a horizontal direction perpendicular to the rotation axis of the flip plate, a slide groove being provided on the fixed plate, and the slide groove extending in an extension direction of the fixed plate;

[0019] An adjusting screw passes through the slide slot and is slidable along an extending direction of the slide slot;

[0020] The flip connecting rod has one end threadedly connected to the adjusting screw and the other end hinged to the flip plate. By screwing the adjusting screw, the flip connecting rod can be fixed or moved relative to the fixed plate.

[0021] Preferably, one side of the support frame connected to the flip plate is suspended, and an escape space is formed between the suspended part and the bed body. When the trainee lies on his side, one leg to be trained is placed on the flip plate, and the other leg is placed in the escape space.

[0022] Preferably, a concave avoidance arc surface is provided at one end of the support frame and the flip plate close to the bedside and at one side of the support frame connected to the flip plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) The present invention can drive the thigh and calf separately and move them along a predetermined trajectory, thereby training the lower limbs; and during training, the trainee does not need to exert any effort, as the training device automatically moves the thigh and calf back and forth.

[0025] 2) The flip board can be flipped and adjusted to different angles, so that the angle can be adjusted according to the trainee's situation for training. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 is a structural diagram according to a preferred embodiment of the present invention;

[0027] Figure 3 is a structural diagram of a training module of the present invention;

[0028] Figure 4 is an exploded diagram of the training module of the present invention;

[0029] Figure 5 is a structural diagram of the support frame of the present invention;

[0030] Figure 6 and Figure 7 is a structural diagram of a driving module of the present invention;

[0031] Figure 8 This is a training picture of the flip board in a vertical state. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-8 As shown, a multifunctional lower limb training device includes a bed body 1 and a training module 3 arranged on the bed body 1, wherein the training module 3 includes a thigh fixing structure 3517 and a calf fixing structure 3217, wherein the thigh fixing structure 3517 is used to fix the thigh of the trainee lying on the bed body 1, and the calf fixing structure 3217 is used to fix the calf of the trainee. The thigh fixing structure 3517 and the calf fixing structure 3217 can move along a predetermined trajectory, thereby driving the thigh and the calf to move, so as to achieve training of the lower limbs. The thigh fixing structure 3517 and the calf fixing structure 3217 can be fixed by straps or other fixing methods in the prior art.

[0034] The training module 3 also includes a support frame 34 disposed on the bed 1, and a flip plate 31 rotatably supported on the support frame 34 by a hinge 331, wherein the rotation axis of the hinge 331 is parallel to the length direction of the bed 1 or the direction in which the trainee lies on the bed 1. The thigh fixing structure 3517 and the calf fixing structure 3217 are movably disposed on the flip plate 31 along the predetermined track, and the angle of the flip plate 31 can be adjusted by rotating the flip plate 31, and can be adjusted according to the needs of training to achieve training in different situations.

[0035] Furthermore, the thigh fixing structure 3517 is driven by a thigh training driving mechanism 35, and the calf fixing structure 3517 is driven by a calf training driving mechanism 32. The thigh training driving mechanism 35 and the calf training driving mechanism 32 have the same structure, but are slightly different in size and placement angle.

[0036] The calf training drive mechanism 32 includes a first mounting plate 322 mounted on one side of the flip plate 31, a first screw rod 325 rotatably disposed on the first mounting plate 322, a first slider 326 matched with the first screw rod 325, a second mounting plate 3210 disposed on the first slider 326, a second screw rod 3213 rotatably disposed on the second mounting plate 3210, and a second slider 3214 threadedly matched with the second screw rod 3213, wherein the axis of the first screw rod 325 is perpendicular to the axis of the second screw rod 3213. The calf fixing structure 3217 is connected to the second slider 3214 via a connecting rod 3216, which passes through the flip plate 31, and can drive the calf fixing structure 3217 to move along a predetermined trajectory by controlling the rotation of the first screw rod 325 and the second screw rod 3213. A first motor 321 is provided on the first mounting plate 322, and the output shaft of the first motor 321 is connected to the first screw rod 325, and the rotation of the first screw rod 325 can be controlled by the first motor 321. A second motor 329 is provided on the second mounting plate 3210, and the second motor 329 is transmission-connected to the second screw rod 3213, and the second motor 329 can drive the second screw rod 3213 to rotate. In addition, a first guide rail 323 is provided on the side of the first mounting plate 322 facing the first screw rod 325, and the first slider 326 cooperates with the first guide rail 323. A second guide rail 3212 is provided on the side of the second mounting plate 3210 facing the second screw rod 3213, and the second slider 3214 cooperates with the second guide rail 3212.

[0037] Furthermore, a photoelectric sensor 324 is provided at one end of the first mounting plate 322, and a baffle 327 is provided on the first slider 326. The baffle 327 can be moved between the transmitting end and the receiving end of the photoelectric sensor 324. At this time, the first slider 326 is in place and the first motor 321 stops rotating. Of course, in actual use, a photoelectric sensor 324 can be provided at both ends of the first mounting plate 322, or other types of sensors in the prior art can be used. A limit switch 3211 is provided at one end of the second mounting plate 3210 close to the first mounting plate 322. When the second slider 3214 touches the limit switch 3211, the second slider 3214 is in place and the second motor 329 stops rotating.

[0038] Specifically, the first arc groove 311 and the second arc groove 314 are respectively arranged at the predetermined tracks corresponding to the thigh fixing structure 3517 and the calf fixing structure 3217 on the flip plate 31, the connecting rod 3216 of the calf training driving mechanism 32 passes through the second arc groove 314, and the connecting rod of the thigh training driving mechanism 32 passes through the first arc groove 311, and the shapes of the first arc groove 311 and the second arc groove 314 are determined by the predetermined tracks. At the same time, the first installation groove 313 and the second installation groove 312 are respectively arranged at the positions of the first installation plates of the thigh fixing structure 3517 and the calf fixing structure 3217 of the flip plate 31, and the two first installation plates are respectively installed in the first installation groove 313 and the second installation groove 312.

[0039] Furthermore, an escape groove 343 is formed on the upper surface of the support frame 34 , and the escape groove 343 is used to escape the second mounting plate 3210 and the structure mounted on the second mounting plate 3210 .

[0040] Preferably, the training device further comprises an angle adjustment mechanism 33 for adjusting the rotation angle of the flip plate 31 relative to the support frame 34. The angle adjustment mechanism 33 comprises a fixed plate 334 fixed to the side of the support frame 34 close to the end of the bed, a flip link 332 and an adjusting screw 333. The fixed plate 334 is provided with a slide groove extending in a horizontal direction perpendicular to the rotation axis of the flip plate 31. The adjusting screw 333 passes through the slide groove and is threadedly connected to one end of the flip link 332. The other end of the flip link 332 is hinged to the flip plate 31. The adjusting screw 333 can move back and forth along the slide groove. When the angle of the flip plate 31 needs to be adjusted, the adjusting screw 333 is loosened. When the flip plate 31 is adjusted to the right position, the adjusting screw 333 is tightened. The flip link 332 plays a role in supporting the flip plate 31. The rotation angle of the flip plate 31 is 0-90°, that is, the flip plate 31 can be adjusted between horizontal and vertical.

[0041] The side of the support frame 34 connected to the flip plate 31 is suspended, and an escape space 344 is formed between the suspended part and the bed body 1. When the trainee 2 lies on his side, one leg to be trained is placed on the flip plate 31, and the other leg is placed in the escape space 344. Concave escape arc surfaces 341 are provided at one end of the support frame 34 and the flip plate 31 close to the head of the bed and at one side of the support frame 34 connected to the flip plate 31, so that the support frame 34 and the flip plate 31 can minimize the obstruction of the trainee's body parts.

[0042] In actual use, the training module 3 can be installed on a bed, or on other structures on which a trainee can lie down, or all structures on which a trainee can lie down can be defined as a bed.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional lower limb training device, characterized in that: include: Bed; The training module comprises a support frame supported on a bed, a flip board rotatably connected to the support frame, a thigh fixing structure and a calf fixing structure, wherein the thigh fixing structure and the calf fixing structure support the flip board and are movable along a predetermined track, the thigh fixing structure is used to fix the thigh of a trainee lying on the bed, and the calf fixing structure is used to fix the calf of the trainee; The thigh fixing structure is driven by a thigh training driving mechanism, and the calf fixing structure is driven by a calf training driving mechanism. The thigh training driving mechanism and the calf training driving mechanism have the same structure and both include: A first mounting plate, mounted on one side of the flip plate; A first screw rod, rotatably disposed on the first mounting plate; A first sliding block, threadably matched with the first screw rod; A second mounting plate, disposed on the first sliding block; A second screw rod is rotatably arranged on the second mounting plate, the second screw rod is perpendicular to the axis of the first screw rod, and the first screw rod and the second screw rod are both parallel to the plane where the flip plate is located; A second slider is threadably matched with the second screw rod, and the thigh fixing structure and the calf fixing structure are respectively arranged on the corresponding second slider; The thigh training drive mechanism and the calf training drive mechanism are independent of each other; The multifunctional lower limb training device further comprises an angle adjustment mechanism for adjusting the rotation angle of the flip plate relative to the support frame, and the angle adjustment mechanism comprises: A fixed plate, fixed to a side of the support frame close to the end of the bed, the fixed plate extending in a horizontal direction perpendicular to the rotation axis of the flip plate, a slide groove being provided on the fixed plate, and the slide groove extending in an extension direction of the fixed plate; An adjusting screw passes through the slide slot and is slidable along an extending direction of the slide slot; A flip connecting rod, one end of which is threadedly connected to the adjusting screw and the other end of which is hinged to the flip plate, and the flip connecting rod can be fixed or moved relative to the fixed plate by screwing the adjusting screw; A first mounting groove and a second mounting groove are respectively arranged at positions of the first mounting plates of the flip plate corresponding to the thigh fixing structure and the calf fixing structure, and the two first mounting plates are respectively installed in the first mounting groove and the second mounting groove.

2. A multifunctional lower limb training device according to claim 1, characterized in that: A first arc groove and a second arc groove are respectively arranged at predetermined tracks of the thigh fixing structure and the calf fixing structure on the flip plate, and connecting rods are respectively arranged on the second sliders of the thigh training driving mechanism and the calf training driving mechanism, and the two connecting rods respectively pass through the corresponding first arc groove and the second arc groove, and the thigh fixing structure and the calf fixing structure are respectively connected to the corresponding connecting rods.

3. A multifunctional lower limb training device according to claim 1, characterized in that: A photoelectric sensor is arranged at one end of the first mounting plate, a baffle is arranged on the first slider, and the baffle can be moved between the transmitting end and the receiving end of the photoelectric sensor; a limit switch is arranged on one end of the second mounting plate close to the first mounting plate.

4. A multifunctional lower limb training device according to claim 1, characterized in that: One side of the support frame connected to the flip plate is suspended, and an escape space is formed between the suspended part and the bed body. When the trainee lies on his side, one leg to be trained is placed on the flip plate, and the other leg is placed in the escape space.

5. The multifunctional lower limb training device according to claim 1, characterized in that: An end of the support frame and the flip plate close to the bed head and a side of the support frame connected to the flip plate are both provided with a concave avoidance arc surface.

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