Pedal type lower limb rehabilitation device

Abstract

The utility model discloses a pedal type lower limb rehabilitation device, and relates to the technical field of rehabilitation devices. The device comprises a base plate, a mounting plate is mounted on the base plate, a rotating wheel is rotatably mounted on the mounting plate, a pedal plate is mounted on the rotating wheel, and a concave cavity is formed in the rotating wheel. The rotating wheel and the pedal plate are mounted on the mounting plate, during preliminary rehabilitation, the sliding friction block is located in the concave cavity and does not make contact with the rotating wheel, at the moment, a patient only needs to overcome friction between the pedal plate and the mounting plate when stepping on the pedal plate, and the patient can perform preliminary rehabilitation training by stepping on the pedal plate; when the patient steps on the pedal plate, the sliding friction block makes contact with the rotating wheel, at the moment, the force of the patient stepping on the pedal plate is friction between the rotating wheel and the mounting plate and friction between the rotating wheel and the friction block, then the training intensity of the patient is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of rehabilitation devices, and in particular to a pedal-type lower limb rehabilitation device. Background Art

[0002] At present, after the hospital performs surgery on the patient's lower limbs (legs, ankles, knees), the patient's lower limbs are damaged and cannot walk for a long time, so rehabilitation training is needed to facilitate the recovery of the lower limb joints. When performing rehabilitation exercises, foot-operated rehabilitation devices are often used.

[0003] When using an existing pedal-type rehabilitation device, the patient exercises the limbs by stepping on the pedals. However, the force required to step on the pedals of the existing pedal-type rehabilitation device is relatively fixed, so that the training intensity of the device will not change with the patient's recovery degree, and the rehabilitation effect of the device is relatively limited. For this reason, the present application provides a pedal-type lower limb rehabilitation device to improve this problem. Utility Model Content

[0004] The purpose of this application is to solve the problems in the above background and provide a pedal-type lower limb rehabilitation device.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A pedal-type lower limb rehabilitation device, comprising:

[0007] A backing plate, on which a mounting plate is mounted, on which a rotating wheel is rotatably mounted, on which a foot pedal is mounted, and on which a concave cavity is formed;

[0008] An extension plate, a hinge rod is installed on the mounting plate, the extension plate is hinged on the mounting plate through the hinge rod, a handle is installed on the extension plate, an external thread is provided at the end of the hinge rod, a limiting nut is threadedly connected on the hinge rod, and the limiting nut is used to interfere with the extension plate;

[0009] The rotating plate is rotatably mounted on the limiting nut, a connecting plate is mounted on the rotating plate, and a friction block is slidably mounted on the connecting plate. When the friction block slides, the friction block is connected to the rotating wheel or moves into the concave cavity.

[0010] Furthermore, a limiting groove is provided on the connecting plate, and a limiting block is slidably mounted on the friction block via a connecting spring. When the limiting block is inserted into the limiting groove, sliding of the friction block on the connecting plate is limited.

[0011] Furthermore, an expansion block is hinged on the connecting plate, and the rotation path of the expansion block is close to or away from the rotating wheel. The contact area between the expansion block and the rotating wheel is consistent with the contact area between the friction block and the rotating wheel.

[0012] Furthermore, a limiting rod is slidably mounted on the connecting plate, an insert rod is mounted on the limiting rod, and a slot for accommodating the insert rod is provided on the expansion block. When the insert rod is inserted into the slot, the rotation of the expansion block is restricted.

[0013] Furthermore, side plates are installed on both sides of the limiting rod, a thin rod is installed on the expansion block, the expansion block is hinged to the connecting plate through the thin rod, and the width of the gap between the side plates is equal to the width of the thin rod.

[0014] Furthermore, a rotation limiting plate is installed on the connecting plate, and the rotation limiting plate is used to carry the expansion block. When the expansion block rotates to contact with the rotation limiting plate, the slot is aligned with the insertion rod.

[0015] Furthermore, a clamping cavity is provided on the extension plate, a rotating shaft is rotatably installed in the clamping cavity through a torsion spring, a connecting rope is wound around the rotating shaft, the connecting rope is connected to the handle, and the handle is slidably connected to the extension plate.

[0016] Furthermore, a groove is provided on the extension plate, and an inserting block for inserting into the groove is provided on the handle.

[0017] The beneficial effects of this application are as follows:

[0018] The present application installs a rotating wheel and a foot pedal on a mounting plate. During initial rehabilitation, a sliding friction block is used to place the foot pedal in a concave cavity without contacting the rotating wheel. At this time, the patient only needs to overcome the friction between the foot pedal and the mounting plate when stepping on the foot pedal. The patient can perform initial rehabilitation training by stepping on the foot pedal. When the patient gradually recovers, the friction block is slid to make it contact with the rotating wheel. At this time, the force exerted by the patient when stepping on the foot pedal is not only the friction between the rotating wheel and the mounting plate, but also the friction between the rotating wheel and the friction block, thereby increasing the patient's training intensity and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of this application;

[0020] Figure 2 It is an exploded view of some structures of this application;

[0021] Figure 3 This is an exploded view of the connection plate and the structure thereon of the present application;

[0022] Figure 4 This is a schematic diagram of the connecting plate and the structure thereon of the present application;

[0023] Figure 5 This is the exploded view of the extension plate of this application and its structure;

[0024] Figure 6 It is an exploded view of the expansion block and the limiting rod structure of the present application;

[0025] Figure 7 This application Figure 1 The three-dimensional cross-sectional view of the middle structure;

[0026] Figure 8 This application Figure 3 Enlarged view of point A in the middle;

[0027] 1. The support plate of the embodiment of the present invention is provided with a plurality of support members, each of which is provided with a plurality of support members, and a plurality of support members are provided with plurality of support members. The support members are provided with a plurality of support members, each of which is provided with a plurality of support members. The support members are provided with a plurality of support members, each of which is provided with a plurality of support members. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0029] Embodiment 1

[0030] like Figure 1-Figure 8 As shown, a pedal-type lower limb rehabilitation device proposed in the first embodiment of the present application includes:

[0031] A pad 1 is provided with a mounting plate 101, a rotating wheel 2 is rotatably mounted on the mounting plate 101, a foot pedal 201 is mounted on the rotating wheel 2, a concave cavity 202 is provided on the rotating wheel 2, and the pad 1 is used to install other components of the device. When in use, the pad 1 is placed on the ground and placed next to a stool. When in use, the patient sits on the stool and steps on the foot pedal 201 with his feet to perform rehabilitation exercises. The concave cavity 202 is provided on the side of the rotating wheel 2 in the axial direction, so that the side wall of the rotating wheel 2 where the concave cavity 202 is provided is concave;

[0032] The extension plate 3 and the mounting plate 101 are provided with a hinge rod 301, the extension plate 3 is hinged to the mounting plate 101 through the hinge rod 301, a handle 4 is provided on the extension plate 3, an external thread is provided at the end of the hinge rod 301, a limiting nut 302 is threadedly connected to the hinge rod 301, and the limiting nut 302 is used to contact the extension plate 3. When in use, the patient can hold the handle 4 for leverage in the early stage of rehabilitation so that he can maintain balance, and when in use, the angle of the handle 4 can be adjusted by rotating the extension plate 3, thereby increasing the practicality of the device;

[0033] When the angle of the extension plate 3 is adjusted, the limiting nut 302 is rotated to make it contact with the extension plate 3, thereby limiting the rotation of the extension plate 3, so that the extension plate 3 is maintained at the adjusted angle, thereby increasing the stability of the extension plate 3 when in use;

[0034] The rotating plate 5 is rotatably mounted on the limiting nut 302, and a connecting plate 6 is mounted on the rotating plate 5. A friction block 7 is slidably mounted on the connecting plate 6. When the friction block 7 slides, the friction block 7 is connected to the rotating wheel 2 or moves into the concave cavity 202 to Figure 1 From the main perspective, the friction block 7 is slidably connected with the connecting plate 6 in the vertical direction, and the rotating plate 5 is connected with the limiting nut 302 through the bearing, so that when the limiting nut 302 rotates to conflict with the extension plate 3, the rotating plate 5 is driven to approach the rotating wheel 2, and the center of the concave cavity 202 is at the same point as the center of the rotating wheel 2, so that the friction block 7 can slide into the concave cavity 202 when sliding downward. In the early stage of rehabilitation, the friction block 7 slides into the concave cavity 202 through the cooperation of gravity, and does not contact the surface of the rotating wheel 2, and does not affect the rotation of the rotating wheel 2. It is convenient for patients to use it in the early stage of rehabilitation when the training intensity is low. When in use, the limiting nut 302 can not only limit the rotation of the extension plate 3, but also drive the friction block 7 to conflict with the rotating wheel 2 to increase friction, thereby increasing the practicality of the limiting nut 302.

[0035] After the patient has exercised for a period of time, he slides the friction block 7 upwards and then rotates the limiting nut 302. When the limiting nut 302 contacts the extension plate 3, the friction block 7 also contacts the rotating wheel 2. At this time, the sliding of the friction block 7 is restricted by the contact between the two. At this time, the friction between the friction block 7 and the rotating wheel 2 makes the force required to rotate the rotating wheel 2 greater, thereby increasing the intensity of the patient's exercise.

[0036] A notch is provided on the rotating plate 5, and a rod body for inserting into the notch is installed on the extension plate 3. When the rotating plate 5 moves to a position close to the extension plate 3 along with the limiting nut 302, the rod body is inserted into the notch to limit the rotation of the rotating plate 5 at this time, thereby increasing the stability of the rotating plate 5 when in use and reducing the possibility of the rotating plate 5 rotating by mistake so that the friction block 7 and the rotating wheel 2 are released from contact.

[0037] Compared with the prior art, the rotating wheel 2 and the foot pedal 201 are installed on the mounting plate 101. During initial rehabilitation, the friction block 7 is slid to make it located in the concave cavity 202 and not in contact with the rotating wheel 2. At this time, the patient only needs to overcome the friction between the foot pedal 201 and the mounting plate 101 to step on the foot pedal 201. The patient can perform initial rehabilitation training by stepping on the foot pedal 201. When the patient gradually recovers, the friction block 7 is slid to make it contact with the rotating wheel 2. At this time, the force used by the patient to step on the foot pedal 201 is not only the friction between the rotating wheel 2 and the mounting plate 101, but also the friction between the rotating wheel 2 and the friction block 7, thereby increasing the patient's training intensity and improving the practicability of the device.

[0038] Embodiment 2

[0039] like Figure 3 and Figure 8 As shown, the second embodiment discloses the connecting plate 6 on the basis of the first embodiment. In the second embodiment, a limiting groove 601 is provided on the connecting plate 6, and a limiting block 603 is slidably installed on the friction block 7 through a connecting spring 602. When the limiting block 603 is inserted into the limiting groove 601, the sliding of the friction block 7 on the connecting plate 6 is limited. There are two limiting blocks 603, which are symmetrically slidably installed on both sides of the friction block 7. The connecting spring 602 forces the two limiting blocks 603 to move away from each other. When in use, the limiting groove 601 is provided in the vertically upward direction of the connecting plate 6, and a groove body for slidingly cooperating with the friction block 7 is provided on the connecting plate 6. In normal state, the limiting block 603 is compressed by the inner wall of the groove body. When the training intensity needs to be increased, the friction block 7 is slid upward so that the limiting block 603 gradually slides to align with the limiting groove 601. At this time, the limiting block 603 is inserted into the limiting groove 601 by the push of the connecting spring 602, thereby limiting the sliding of the friction block 7, further increasing its stability when it conflicts with the rotating wheel 2.

[0040] A slope is provided on the side wall of the limiting block 603. When the friction block 7 needs to be slid, the friction block 7 is pulled so that the slope on the side wall contacts the inner wall of the limiting groove 601, so that the limiting blocks 603 approach each other and separate from the limiting groove 601, so that the sliding of the friction block 7 is restored, thereby increasing the practicality of the device.

[0041] like Figure 2As shown, in the second embodiment, an expansion block 8 is hinged on the connecting plate 6, and the rotation path of the expansion block 8 is close to or away from the rotating wheel 2. The contact area between the expansion block 8 and the rotating wheel 2 is consistent with the contact area between the friction block 7 and the rotating wheel 2. When the friction caused by the friction block 7 reaches the critical point for the patient's exercise, that is, at this time, when the patient can step on the foot pedal 201 without effort, the expansion block 8 is rotated to make the expansion block 8 contact with the rotating wheel 2, thereby increasing the contact area between the connecting plate 6 and the rotating wheel 2, increasing the friction that needs to be overcome for the rotation of the rotating wheel 2, and then increasing the force required for the rotation of the rotating wheel 2, further increasing the exercise effect of the device on the patient, and increasing the practicality of the device.

[0042] like Figure 3 , Figure 5 and Figure 6 As shown, in the second embodiment, a limiting rod 10 is slidably mounted on the connecting plate 6, and a plug rod 9 is mounted on the limiting rod 10. A slot 11 for accommodating the plug rod 9 is opened on the expansion block 8. When the plug rod 9 is inserted into the slot 11, the rotation of the expansion block 8 is restricted. Figure 1 From the main perspective, a long groove is opened on the connecting plate 6 in the vertical direction, and the limiting rod 10 slides in the long groove of the connecting plate 6 in the vertical direction. When the expansion block 8 is rotated to contact with the rotating wheel 2, the angle of the expansion block 8 is adjusted so that the opening of the slot 11 faces the vertical upward direction. At this time, the limiting rod 10 is slid to make it close to the expansion block 8, so that the insertion rod 9 is inserted into the slot 11. At this time, the side wall of the insertion rod 9 clamps the side wall of the slot 11, and the connection point of the insertion rod 9 and the slot 11 is in an eccentric position with the hinge point of the expansion block 8, thereby limiting the rotation of the expansion block 8, thereby increasing the stability of the expansion block 8 when in use.

[0043] like Figure 3 and Figure 4 As shown, in the second embodiment, side plates 12 are installed on both sides of the limiting rod 10, and thin rods 13 are installed on the expansion block 8. The expansion block 8 is hinged to the connecting plate 6 through the thin rods 13. The width of the gap between the side plates 12 is equal to the width of the thin rods 13. When in use, when the insertion rod 9 is inserted into the slot 11, the two side plates 12 also accommodate the thin rods 13, increasing the contact area between the limiting rod 10 and the expansion block 8, thereby increasing the friction between the two, and increasing the connection strength between the expansion block 8 and the limiting rod 10;

[0044] When the expansion block 8 is in the initial position, that is, when it is not in contact with the rotating wheel 2, the limiting rod 10 is located at the vertically upward end of the long groove on the connecting plate 6. At this time, the side plate 12 contacts the side of the expansion block 8 in the rotation direction. The expansion block 8 limits the downward sliding of the limiting rod 10, and the side plate 12 also limits the rotation of the expansion block 8. Figure 4As shown, the practicability of the device is increased, and the length of the long groove on the connecting plate 6 is greater than the sum of the lengths of the thin rod 13 and the expansion block 8. When the expansion block 8 needs to be rotated, the limiting rod 10 is slid upward so that the side plate 12 releases the restriction on the expansion block 8, which is more convenient to use.

[0045] like Figure 4 As shown in Example 2, a limited rotation plate 14 is installed on the connecting plate 6, and the limited rotation plate 14 is used to carry the expansion block 8. When the expansion block 8 rotates to contact with the limited rotation plate 14, the slot 11 is aligned with the insertion rod 9. The limited rotation plate 14 is located at the end of the connecting plate 6 close to the vertical downward direction. When the expansion block 8 rotates to contact with the limited rotation plate 14, the expansion block 8 contacts the rotating wheel 2 and cannot continue to rotate downward, further increasing the stability of the expansion block 8 when in use, and through the cooperation of the limited rotation plate 14 and gravity, when the insertion rod 9 is not inserted into the slot 11, the expansion block 8 can be stably located on the limited rotation plate 14. At this time, the expansion block 8 makes the slot 11 open to the vertical upward position, which is convenient for aligning the insertion rod 9 with the slot 11. When the rotation of the expansion block 8 is restricted, the limiting rod 10 can be directly slid downward to connect the insertion rod 9 with the slot 11, thereby increasing the practicality of the device.

[0046] Embodiment 3

[0047] like Figure 1-Figure 8 As shown, the third embodiment further discloses the present application on the basis of the second embodiment. In the third embodiment, a clamping cavity 15 is opened on the extension plate 3, and a rotating shaft is rotatably installed in the clamping cavity 15 through a torsion spring 16. A connecting rope 17 is wound around the rotating shaft, and the connecting rope 17 is connected to the handle 4. The handle 4 is slidably connected to the extension plate 3. When in use, if the patient has been in bed for too long and the upper limbs also need to be exercised, when in use, the patient pulls the handle 4 upwards and then lets go, so that the torsion spring 16 pulls the connecting rope 17 and then resets the handle 4, so that the patient repeatedly pulls the handle 4, so that the patient can also exercise the upper limbs. The device can pull the handle 4 to counteract the pulling force of the torsion spring 16, thereby completing the exercise of the upper limbs, so that the handle 4 not only serves as a lever structure for the patient, but also plays a role in exercising the patient, further increasing the practicality of the device.

[0048] In the third embodiment, a groove 18 is provided on the extension plate 3, and an insert block 19 for being inserted into the groove 18 is provided on the handle 4. During normal use, the insert block 19 is inserted into the groove 18, which increases the contact area between the handle 4 and the extension plate 3, increases the connection strength between the two, and increases the stability of the handle 4 during normal use of the device. In addition, the opening of the groove 18 is opened in a direction perpendicular to its upper surface, so that the handle 4 can only be separated from the extension plate 3 by sliding along the opening direction of the groove 18. During normal use, the patient only needs to exercise the lower limbs, and the handle 4 at this time is only a lever structure for the patient, which further increases the stability of the handle 4 during normal use.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pedal-type lower limb rehabilitation device, characterized in that: include: A pad (1) is mounted with a mounting plate (101), a rotating wheel (2) is rotatably mounted on the mounting plate (101), a pedal (201) is mounted on the rotating wheel (2), and a concave cavity (202) is formed on the rotating wheel (2); An extension plate (3), a hinge rod (301) is installed on the mounting plate (101), the extension plate (3) is hinged to the mounting plate (101) through the hinge rod (301), a handle (4) is installed on the extension plate (3), an end of the hinge rod (301) is provided with an external thread, a limiting nut (302) is threadedly connected to the hinge rod (301), and the limiting nut (302) is used to contact the extension plate (3); A rotating plate (5) is rotatably mounted on the limiting nut (302), a connecting plate (6) is mounted on the rotating plate (5), and a friction block (7) is slidably mounted on the connecting plate (6). When the friction block (7) slides, the friction block (7) is connected to the rotating wheel (2) or moves into the concave cavity (202).

2. The pedal-type lower limb rehabilitation device according to claim 1, characterized in that: The connection plate (6) is provided with a limiting groove (601), and a limiting block (603) is slidably mounted on the friction block (7) via a connecting spring (602); when the limiting block (603) is inserted into the limiting groove (601), the sliding movement of the friction block (7) on the connection plate (6) is limited.

3. The pedal-type lower limb rehabilitation device according to claim 2, characterized in that: An expansion block (8) is hingedly connected to the connecting plate (6), and the rotation path of the expansion block (8) is close to or away from the rotating wheel (2). The contact area between the expansion block (8) and the rotating wheel (2) is consistent with the contact area between the friction block (7) and the rotating wheel (2).

4. The pedal-type lower limb rehabilitation device according to claim 3, characterized in that: A limiting rod (10) is slidably mounted on the connecting plate (6), an inserting rod (9) is mounted on the limiting rod (10), and a slot (11) for accommodating the inserting rod (9) is provided on the expansion block (8). When the inserting rod (9) is inserted into the slot (11), the rotation of the expansion block (8) is restricted.

5. The pedal-type lower limb rehabilitation device according to claim 4, characterized in that: Side plates (12) are installed on both sides of the limiting rod (10), a thin rod (13) is installed on the expansion block (8), the expansion block (8) is hinged to the connecting plate (6) through the thin rod (13), and the width of the gap between the side plates (12) is equal to the width of the thin rod (13).

6. The pedal-type lower limb rehabilitation device according to claim 5, characterized in that: A rotation limiting plate (14) is installed on the connecting plate (6), and the rotation limiting plate (14) is used to carry the expansion block (8). When the expansion block (8) rotates to contact with the rotation limiting plate (14), the slot (11) is aligned with the insertion rod (9).

7. The pedal-type lower limb rehabilitation device according to claim 6, characterized in that: The extension plate (3) is provided with a clamping cavity (15), a rotating shaft is rotatably mounted in the clamping cavity (15) via a torsion spring (16), a connecting rope (17) is wound around the rotating shaft, the connecting rope (17) is connected to the handle (4), and the handle (4) is slidably connected to the extension plate (3).

8. The pedal-type lower limb rehabilitation device according to claim 7, characterized in that: The extension plate (3) is provided with a groove (18), and the handle (4) is provided with an inserting block (19) for inserting into the groove (18).

Images