Lower limb hip joint and knee joint movement device

Abstract

The utility model discloses a lower limb hip joint and knee joint movement device which comprises a bed body, a notch is formed in a bed board of the bed body, a flexion and extension assembly is arranged at the notch, and the flexion and extension assembly comprises a first outer rotor roller motor, a first supporting plate, a second outer rotor roller motor and a second supporting plate. The two ends of a shaft body of the first outer rotor roller motor are connected with longitudinal beams on the two sides of the bed body respectively, the bed head end of the first supporting plate is connected with the outer circumferential face of a roller of the first outer rotor roller motor, side plates are arranged on the two sides of the bed tail end of the first supporting plate respectively, and the two ends of a shaft body of the second outer rotor roller motor are connected with the two side plates respectively. The bed head end of the second supporting plate is connected with the outer circumferential face of a roller of the second outer rotor roller motor, and the top of the bed tail end of the second supporting plate is provided with a binding piece used for binding the ankles of the patient. The lower limb rehabilitation device can drive the lower limbs of a patient to bend and stretch, lower limb muscle atrophy of the patient is avoided, and meanwhile the lower limb hip joints and knee joints of the patient are prevented from being stiff.

Description

Technical Field

[0001] The utility model relates to a lower limb hip joint and knee joint exercise device, belonging to the technical field of lower limb exercise equipment. Background Art

[0002] Patients who are bedridden for a long time due to heart failure, stroke, paralysis or other reasons will quickly lose muscle and their joints will gradually contract and deform. When the joints are immobilized for a long time, the soft tissues around the joints will slowly lose elasticity and become stiff and weak due to loss of lubrication, making the joints more inflexible. This is especially true for the lower limbs. If the lower limb muscles atrophy and the hip and knee joints are stiff, it will cause disuse paralysis of the patient's lower limbs, which will affect the patient's standing and walking when he wakes up or can get out of bed. Therefore, it is crucial for long-term bedridden patients to perform lower limb functional exercises. The best time to exercise is as early as possible without affecting the patient's condition. The exercise should be performed step by step according to the patient's actual situation so as to achieve better rehabilitation treatment effects and shorten the course of the disease. Therefore, it is very necessary to help long-term bedridden patients do some lower limb exercises. Utility Model Content

[0003] The utility model aims to provide a lower limb hip joint and knee joint exercise device, which can drive the patient's lower limbs to perform flexion and extension exercises, avoid the patient's lower limb muscle atrophy, and prevent the patient's lower limb hip joint and knee joint from becoming stiff.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A lower limb hip joint and knee joint exercise device comprises a bed body, a notch is formed on the bed board of the bed body, a flexion and extension assembly is arranged at the notch, the flexion and extension assembly comprises a first outer rotor roller motor, a first support plate, a second outer rotor roller motor and a second support plate, the two ends of the shaft body of the first outer rotor roller motor are respectively connected to the longitudinal beams on both sides of the bed body, the head end of the first support plate is connected to the outer circumferential surface of the roller of the first outer rotor roller motor, side plates are respectively arranged on both sides of the tail end of the first support plate, the two ends of the shaft body of the second outer rotor roller motor are respectively connected to the two side plates at the tail end of the first support plate, the head end of the second support plate is connected to the outer circumferential surface of the roller of the second outer rotor roller motor, and a restraint for restraining the patient's ankle is arranged on the top of the tail end of the second support plate.

[0006] As a preferred embodiment of the present invention, an elastic covering member is arranged at the junction of the first support plate and the second support plate, one side edge of the elastic covering member is overlapped with the first support plate and then glued together, and the other side edge of the elastic covering member is overlapped with the second support plate and then glued together; the elastic covering member is elongated or shortened as the rotation angle of the second support plate changes, so that the elastic covering member always covers the junction of the first support plate and the second support plate, avoiding exposure of the junction of the first support plate and the second support plate.

[0007] As a preferred embodiment of the present invention, the head end of the first support plate is connected to the outer circumferential surface of the drum of the first outer rotor drum motor through a plurality of first ribs, and the first ribs are located at the bottom of the head end of the first support plate; so as to improve the connection strength between the first support plate and the first outer rotor drum motor.

[0008] As a preferred embodiment of the present invention, the head end of the second support plate is connected to the outer circumferential surface of the drum of the second outer rotor drum motor through a plurality of second ribs, and the second ribs are located at the bottom of the head end of the second support plate; so as to improve the connection strength between the second support plate and the second outer rotor drum motor.

[0009] As a preferred embodiment of the present invention, the restraint is a semicircular elastic band or a Velcro strap; both ends of the semicircular elastic band are connected to the second support plate, and after the patient's foot passes between the semicircular elastic band and the second support plate, the semicircular elastic band forms a restraining effect on the patient's ankle; the Velcro strap has two strap bodies, the fixed ends of the two strap bodies are connected to the second support plate, and the free ends of the two strap bodies are connected by hook and fleece surfaces, and the two strap bodies are Velcro-connected to form a restraining effect on the patient's ankle.

[0010] Furthermore, a silicone cushion layer is provided on the surface of the semicircular elastic band or the surface of the Velcro strap that contacts the patient's ankle; the silicone cushion layer has excellent elasticity and ductility, and has a comfortable decompression effect, which can reduce the pressure of the semicircular elastic band or the Velcro strap on the patient's ankle and improve the patient's physical comfort.

[0011] As a preferred embodiment of the present invention, it also includes a PLC controller, and the first outer rotor drum motor and the second outer rotor drum motor are electrically connected to the PLC controller respectively, and the PLC controller is used to control the rotation of the first outer rotor drum motor and the second outer rotor drum motor.

[0012] The utility model is beneficial in that:

[0013] It can drive the patient's lower limbs to flex and extend, so that the muscles of the patient's lower limbs can be contracted and stretched to avoid atrophy of the patient's lower limb muscles. At the same time, during the flexion and extension of the patient's lower limbs, the hip and knee joints of the patient's lower limbs can also be exercised, thereby preventing stiffness in the hip and knee joints of the patient's lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model after removing one side of the bed longitudinal beam Figure 1 ;

[0016] Figure 3 This is a side view of the structure of the utility model after removing one side of the bed longitudinal beam Figure 2 ;

[0017] Figure 4 This is a side view of the structure of the utility model after removing one side of the bed longitudinal beam Figure 3 ;

[0018] Figure 5 It is a schematic diagram of the exploded structure of the flexion-extension assembly of the utility model;

[0019] Figure 6 It is a schematic diagram of the front view of the structure of the first support plate of the flexion and extension assembly of the utility model at the end of the bed;

[0020] Figure 7 It is a schematic diagram of the front view of the structure of the second support plate of the flexion and extension assembly of the utility model at the end of the bed;

[0021] Meaning of the reference numerals in the figures:

[0022] 1-bed body, 2-longitudinal beam, 3-cross beam, 4-bed board, 5-notch, 6-elastic cover, 7-semicircular elastic band, 10-side board, 11-first outer rotor drum motor, 12-first support plate, 13-second outer rotor drum motor, 14-second support plate, 15-first rib plate, 16-second rib plate. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-7As shown, this embodiment is a lower limb hip joint and knee joint exercise device, including a bed body 1, the bed body 1 includes longitudinal beams 2 located on both sides, a plurality of cross beams 3 are connected between the two longitudinal beams 2, and a bed board 4 is laid on the plurality of cross beams 3; a notch 5 is formed on the bed board 4 of the bed body 1, and a flexion and extension assembly is arranged at the notch 5, and the flexion and extension assembly includes a first outer rotor drum motor 11, a first support plate 12, a second outer rotor drum motor 13 and a second support plate 14, the first outer rotor drum motor 11 is installed between the longitudinal beams 2 on both sides of the bed body 1, and the two ends of the shaft of the first outer rotor drum motor 11 are respectively connected to the two sides of the bed body 1 The first support plate 12 is connected to the longitudinal beam 2, the head end of the first support plate 12 is connected to the outer circumferential surface of the drum of the first outer rotor drum motor 11, side plates 10 are respectively arranged on both sides of the tail end of the first support plate 12, the second outer rotor drum motor 13 is installed between the two side plates 10 at the tail end of the first support plate 12, the two ends of the shaft body of the second outer rotor drum motor 13 are respectively connected to the two side plates 10 at the tail end of the first support plate 12, the head end of the second support plate 14 is connected to the outer circumferential surface of the drum of the second outer rotor drum motor 13, and a restraint for restraining the patient's ankles is arranged on the top of the tail end of the second support plate 14.

[0025] The present embodiment also includes a PLC controller, and the first outer rotor drum motor 11 and the second outer rotor drum motor 13 are electrically connected to the PLC controller respectively, and the PLC controller is used to control the rotation of the first outer rotor drum motor 11 and the second outer rotor drum motor 13; an action program is preset in the PLC controller in advance, and when in use, the PLC controller controls the rotation of the first outer rotor drum motor 11 and the second outer rotor drum motor 13 according to the preset action program.

[0026] In this embodiment, an elastic covering member 6 is provided at the junction of the first support plate 12 and the second support plate 14, one side edge of the elastic covering member 6 is overlapped with the first support plate 12 and then glued together, and the other side edge of the elastic covering member 6 is overlapped with the second support plate 14 and then glued together; the elastic covering member 6 adopts the existing elastic band, and the elastic covering member 6 is extended or shortened as the rotation angle of the second support plate 14 changes, so that the elastic covering member 6 always covers the junction of the first support plate 12 and the second support plate 14, avoiding the junction of the first support plate 12 and the second support plate 14 from being exposed.

[0027] In this embodiment, the head end of the first support plate 12 is connected to the outer circumferential surface of the drum of the first outer rotor drum motor 11 through a plurality of first ribs 15, and the first ribs 15 are located at the bottom of the head end of the first support plate 12; they are used to improve the connection strength between the first support plate 12 and the first outer rotor drum motor 11; in this embodiment, the number of the first ribs 15 is specifically four.

[0028] In this embodiment, the head end of the second support plate 14 is connected to the outer circumferential surface of the drum of the second outer rotor drum motor 13 through a plurality of second ribs 16, and the second ribs 16 are located at the bottom of the head end of the second support plate 14; they are used to improve the connection strength between the second support plate 14 and the second outer rotor drum motor 13; in this embodiment, the number of the second ribs 16 is specifically four.

[0029] In this embodiment, the restraint is a semicircular elastic band 7; both ends of the semicircular elastic band 7 are connected to the second support plate 14, and after the patient's foot passes between the semicircular elastic band 7 and the second support plate 14, the semicircular elastic band 7 forms a restraint effect on the patient's ankle; in actual application, the restraint can also be a Velcro strap; the Velcro strap has two strap bodies, the fixed ends of the two strap bodies are connected to the second support plate 14, and the free ends of the two strap bodies are connected by hook and fleece surfaces. After the two strap bodies are connected by Velcro, they form a restraint effect on the patient's ankle.

[0030] In actual application, a silicone cushion layer is set on the surface of the semicircular elastic band 7 or the surface of the Velcro strap that contacts the patient's ankle; the silicone cushion layer has good elasticity and ductility, and has a comfortable decompression effect, which can reduce the pressure of the semicircular elastic band 7 or the Velcro strap on the patient's ankle and improve the patient's physical comfort.

[0031] In the initial state, if Figure 2 As shown, the first support plate 12 and the second support plate 14 are on the same horizontal plane, and the first support plate 12 and the second support plate 14 are used to fill the gap 5 on the bed board 4; at this time, the first support plate 12 and the second support plate 14 play a supporting role equivalent to the bed board 4.

[0032] When the flexion and extension assembly is used to drive the patient's lower limbs to perform flexion and extension exercises, the patient's feet are first passed between the semicircular elastic band 7 and the second support plate 14. The semicircular elastic band 7 forms a binding effect on the patient's ankles. At this time, the thigh part of the patient's lower limbs corresponds to the first support plate 12, and the calf part of the patient's lower limbs corresponds to the second support plate 14.

[0033] When the flexion and extension assembly drives the patient's lower limbs to perform flexion movement, the PLC controller controls the first outer rotor drum motor 11 to rotate clockwise by a certain angle, and the first outer rotor drum motor 11 drives the first support plate 12 to rotate clockwise by a certain angle. At the same time, the PLC controller controls the second outer rotor drum motor 13 to rotate counterclockwise by a certain angle, and the second outer rotor drum motor 13 drives the second support plate 14 to rotate counterclockwise by a certain angle. In this process, the thigh part of the patient's lower limbs gradually stands up, and the calf part of the patient's lower limbs gradually bends relative to the thigh part. The action process is as follows: Figure 2 , 3, 4; at this time, the muscles of the patient's lower limbs are contracted and exercised, and the hip and knee joints of the patient's lower limbs are active and exercised.

[0034] When the flexion and extension assembly drives the patient's lower limbs to perform stretching exercises, the PLC controller controls the first outer rotor drum motor 11 to rotate counterclockwise by a certain angle, and the first outer rotor drum motor 11 drives the first support plate 12 to rotate counterclockwise by a certain angle. At the same time, the PLC controller controls the second outer rotor drum motor 13 to rotate clockwise by a certain angle, and the second outer rotor drum motor 13 drives the second support plate 14 to rotate clockwise by a certain angle. In this process, the thigh part of the patient's lower limbs is gradually flattened downward, and the calf part of the patient's lower limbs is gradually straightened relative to the thigh part. The action process is as follows: Figure 4 , 3 , 2; at this time, the muscles of the patient's lower limbs are stretched and exercised, and the hip and knee joints of the patient's lower limbs are mobilized and exercised.

[0035] In this embodiment, the PLC controller controls the first outer rotor drum motor 11 to rotate at an angle ranging from 0 to 90 degrees; the PLC controller controls the second outer rotor drum motor 13 to rotate at an angle ranging from 0 to 90 degrees.

[0036] The utility model can drive the patient's lower limbs to perform flexion and extension exercises, so that the muscles of the patient's lower limbs can be contracted and stretched to avoid atrophy of the patient's lower limb muscles. At the same time, during the flexion and extension exercises of the patient's lower limbs, the hip joints and knee joints of the patient's lower limbs can also be actively exercised, thereby preventing stiffness of the hip joints and knee joints of the patient's lower limbs.

[0037] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that: unless otherwise clearly stipulated and limited, the terms "installation", "connection", "setting" and "formation" should be understood in a broad sense; for example: it can be a fixed connection, setting, or a detachable connection, setting, or an integrated structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements; for those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A lower limb hip joint and knee joint exercise device, comprising a bed body, a notch formed on the bed board of the bed body, characterized in that: A flexion and extension assembly is arranged at the notch, and the flexion and extension assembly includes a first outer rotor drum motor, a first support plate, a second outer rotor drum motor and a second support plate, the two ends of the shaft of the first outer rotor drum motor are respectively connected to the longitudinal beams on both sides of the bed body, the head end of the first support plate is connected to the outer circumferential surface of the drum of the first outer rotor drum motor, side plates are respectively arranged on both sides of the tail end of the first support plate, the two ends of the shaft of the second outer rotor drum motor are respectively connected to the two side plates at the tail end of the first support plate, the head end of the second support plate is connected to the outer circumferential surface of the drum of the second outer rotor drum motor, and a restraint for restraining the patient's ankles is arranged on the top of the tail end of the second support plate.

2. A lower limb hip joint and knee joint exercise device according to claim 1, characterized in that: An elastic covering piece is arranged at the junction of the first supporting plate and the second supporting plate, one side edge of the elastic covering piece is overlapped with the first supporting plate and then glued together, and the other side edge of the elastic covering piece is overlapped with the second supporting plate and then glued together.

3. A lower limb hip joint and knee joint exercise device according to claim 1, characterized in that: The head end of the first support plate is connected to the outer circumferential surface of the drum of the first outer rotor drum motor through a plurality of first ribs, and the first ribs are located at the bottom of the head end of the first support plate.

4. A lower limb hip joint and knee joint exercise device according to claim 1, characterized in that: The head end of the second support plate is connected to the outer circumferential surface of the drum of the second outer rotor drum motor through a plurality of second ribs, and the second ribs are located at the bottom of the head end of the second support plate.

5. A lower limb hip joint and knee joint exercise device according to claim 1, characterized in that: The binding piece is a semicircular elastic band or a Velcro fastener.

6. A lower limb hip joint and knee joint exercise device according to claim 5, characterized in that: A silicone cushion layer is provided on the surface of the semicircular elastic band or the surface of the Velcro fastener that contacts the patient's ankle.

7. A lower limb hip joint and knee joint exercise device according to claim 1, characterized in that: It also includes a PLC controller, the first outer rotor drum motor and the second outer rotor drum motor are electrically connected to the PLC controller respectively, and the PLC controller is used to control the rotation of the first outer rotor drum motor and the second outer rotor drum motor.

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