Lower limb stretching training instrument

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a lower limb stretching training instrument which is mainly used for assisting cerebral apoplexy patients in lower limb rehabilitation training. Comprising a base with a mounting groove; the first training part comprises a first shell arranged in the mounting groove; the first driving structure is arranged in the first shell; the first leg support comprises a first support and a second support, the first support is rotatably connected with the second support, the first support is provided with a first connecting end and a second connecting end, the second support is provided with a third connecting end and a fourth connecting end, the first connecting end is rotatably connected with the first shell, and the second connecting end is rotatably connected with the third connecting end; the fourth connecting end is in sliding connection with the first shell and is connected with the first driving structure; and under the driving of the first driving structure, the fourth connecting end reciprocates in the length extension direction of the first shell, so that the second connecting end and the third connecting end repeatedly get away from the first shell and get close to the first shell.

Description

Technical Field

[0001] The invention belongs to the technical field of rehabilitation training equipment, and in particular relates to a lower limb extension training equipment. Background Art

[0002] In clinical practice, stroke patients have a variety of sequelae, including hemiplegia, speech impairment, mental disorder, facial paralysis, incontinence, etc., among which hemiplegia ranks first. In addition, clinical observations have found that most stroke patients have obvious emotional disorders. Studies have confirmed that depression and anxiety directly affect the quality of life, physical function and cognitive function recovery of stroke patients, and can even cause recurrence of stroke.

[0003] Due to the existence of neural plasticity, limb function rehabilitation should be carried out as soon as possible after the patient's condition stabilizes. Through repeated training, the reconstruction of related neural circuits can be promoted to improve the patient's motor function recovery. In the process of rehabilitation training, rehabilitation training is mainly carried out for the limbs with movement disorders. Among them, knee flexion exercises for the patient's affected leg are a more convenient and effective exercise method, and are more suitable for medical staff or patients' families to assist patients in exercise. However, this method requires medical staff or patients' families to manually assist patients, and this requires medical staff or family members to spend a lot of energy and time to accompany the patient.

[0004] In view of the above problems, the present invention provides a lower limb extension training device. Summary of the invention

[0005] In order to overcome the problems raised in the background technology, the present invention adopts the following technical solutions: A lower limb extension training device, comprising: A base, wherein the base has a mounting groove; A first training part, the first training part comprising: a first shell, the first shell is configured in the installation slot; and A first driving structure, wherein the first driving structure is disposed in the first housing; and A first leg bracket, the first leg bracket comprises: a first bracket and a second bracket, the first bracket and the second bracket are rotatably connected to each other, the first bracket has a first connection end and a second connection end, the second bracket has a third connection end and a fourth connection end, the first connection end is rotatably connected to the first shell, the second connection end is rotatably connected to the third connection end, the fourth connection end is slidably connected to the first shell, and is connected to the first driving structure; Wherein, driven by the first driving structure, the fourth connection end reciprocates along the length extension direction of the first shell, so that the second connection end and the third connection end repeatedly move away from and approach the first shell.

[0006] In this embodiment, the first driving structure includes: A first driving member is disposed in the first housing, wherein the driving member has a first output shaft; A threaded rod is rotatably disposed in the first housing and connected to the first output shaft, wherein the threaded rod is driven by the first output shaft to axially rotate in the first housing; A connecting piece is connected to the threaded rod and the second bracket, wherein when the threaded rod rotates, the connecting piece moves axially along the axial extension direction of the threaded rod, so that the second bracket moves away from the first bracket and approaches the first bracket along the length extension direction of the first shell.

[0007] Furthermore, the fourth connecting end has a first connecting arm and a second connecting arm, wherein the first connecting arm and the second connecting arm extend into the first shell, the connecting member is located between the first connecting arm and the second connecting arm, and the first connecting arm and the second connecting arm are rotatably connected to the connecting member.

[0008] Furthermore, the first shell also has a first limiting groove and a second limiting groove, wherein the first limiting groove and the second limiting groove are respectively located on both sides of the second bracket, and the fourth connecting end portion is located in the first limiting groove and the second limiting groove.

[0009] Furthermore, a length extension direction of the first limiting groove and the second limiting groove is parallel to a length extension direction of the first shell.

[0010] In some embodiments of the present application, the first bracket and the second bracket both have a first fixing strap and a second fixing strap, wherein the first fixing strap and the second fixing strap are detachably connected to each other.

[0011] In some embodiments of the present application, the second bracket further has a foot pedal, wherein the foot pedal is located between the third connection end and the fourth connection end, and the foot pedal is closer to the fourth connection end than the third connection end.

[0012] In some embodiments of the present application, it also includes: a second training part, which is configured in the installation slot, wherein the second training part includes: a second shell, a second drive structure and a second leg bracket; wherein the second shell has the same structure as the first shell, the second drive structure is the same as the first drive structure, and the second leg bracket has the same structure as the first leg.

[0013] In some embodiments of the present application, the first shell and the second shell can be rotatably configured in the installation groove, wherein a transmission assembly is also included, and the transmission assembly is configured in the first shell and the second shell, wherein the transmission assembly is constructed to drive the first shell and the second shell to rotate reciprocatingly in opposite directions.

[0014] Furthermore, the transmission assembly comprises: The second driving member is disposed in the first housing, wherein the second driving member has a rotatable second output shaft; A first gear, the first gear is located in the first housing and connected to the second output shaft, the first gear is coaxial with the second output shaft and rotates synchronously with the second output shaft, wherein a portion of the first gear is located outside the first housing; The second gear is rotatably disposed in the second shell and is partially located outside the second shell, wherein the second gear is meshed with the first gear, and when the first gear rotates, the second gear is driven by the first gear to rotate.

[0015] Beneficial effects of the present invention: 1. By setting a base, a first training part, and a second training part, when in use, the patient's affected leg and healthy leg are placed on the first leg support of the first training part and the second leg support of the second training part, and the first driving structure and the second driving structure make the first leg support and the second leg support reciprocate, thereby driving the patient's leg to switch between a flexed state and an extended state, so as to assist the patient in performing knee flexion exercise, thereby saving manpower intervention, thereby realizing the expenditure of manpower costs; 2. By rotatably arranging the first training part and the second training part in the mounting groove, when in use, it can assist the patient to open and close the legs with the knees bent, so as to exercise the gluteus medius of the patient, thereby strengthening the muscle strength there, and further enhancing the stability of the patient's pelvis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the first leg support structure of the present invention; Figure 3 This is a schematic diagram of the connection between the first bracket and the second bracket of the present invention; Figure 4 It is a schematic diagram of the structure of the first connecting arm and the second connecting arm of the present invention; Figure 5 It is a cross-sectional schematic diagram of the driving structure of the present invention; Figure 6 This is a schematic diagram of the threaded rod structure of the present invention; Figure 7 It is a schematic diagram of the structure of the first leg support and the second leg support of the present invention; Figure 8 It is a schematic diagram of the structure after the first shell and the second shell of the present invention are rotated; Fig. 9 This is a schematic diagram of the structure of the first gear and the second gear of the present invention; Fig.10 This is a schematic diagram of the structure of the second training unit of the present invention; In the figure, 1. base; 11. mounting slot; 2. first training part; 21. first shell; 211. first limiting slot; 212. second limiting slot; 22. first leg bracket; 221. first bracket; 2211. first connecting end; 2212. second connecting end; 222. second bracket; 2221. third connecting end; 2222. fourth connecting end; 2223. first connecting arm; 2224. second connecting arm; 2225. pedal; 23. driving member; 24. threaded rod; 25. connecting member; 3. second training part; 31. second shell; 32. second leg bracket; 4. second driving member; 41. first gear; 42. second gear. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below through specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Figure 1—3 shows the main technical content of this embodiment. This specific embodiment provides a lower limb extension training device, which includes: a base 1, the base 1 has a mounting groove 11; a first training part 2, the first training part 2 includes: a first shell 21, the first shell 21 is configured in the mounting groove 11; a first driving structure, wherein the first driving structure is configured in the first shell 21; a first leg bracket 22, the first leg bracket 22 includes: a first bracket 221 and a second bracket 222, the first bracket 221 and the second bracket 222 are rotatably connected to each other, the first bracket 221 has a first connecting end 2211 and a second connecting end The connecting end 2212, the second bracket 222 has a third connecting end 2221 and a fourth connecting end 2222, the first connecting end 2211 is rotatably connected to the first shell 21, the second connecting end 2212 is rotatably connected to the third connecting end 2221, the fourth connecting end 2222 is slidably connected to the first shell 21, and is connected to the first driving structure; wherein, driven by the first driving structure, the fourth connecting end 2222 reciprocates along the length extension direction of the first shell 21, thereby causing the second connecting end 2212 and the third connecting end 2221 to repeatedly move away from the first shell 21 and approach the first shell 21.

[0019] When in use, the patient sits on the base 1 and places the patient's affected leg on the first leg support 22 of the first training part 2. At this time, the patient's thigh is located on the first support 221, and the patient's calf is located on the second support 222. Then, the first driving structure is used to make the fourth connection end 2222 of the second support 222 reciprocate along the length extension direction of the first shell 21, thereby driving the patient's leg to switch between the flexion state and the extension state, so as to assist the patient in performing knee flexion exercises.

[0020] refer to Figure 1 —5, more specifically, the first driving structure includes: a driving member 23, a threaded rod 24 and a connecting member 25, wherein the driving member 23 is arranged in the first housing 21, wherein the driving member 23 has an output shaft, wherein when the driving member 23 is working, the output shaft rotates; the threaded rod 24 is rotatably arranged in the first housing 21 and connected to the output shaft, wherein the threaded rod 24 is driven by the output shaft to rotate axially in the first housing 21; the connecting member 25 is connected to the threaded rod 24 and the second bracket 222, wherein the threaded rod When the threaded rod 24 rotates, the connecting piece 25 moves axially along the axial extension direction of the threaded rod 24, so that the second bracket 222 moves away from the first bracket 221 and approaches the first bracket 221 along the length extension direction of the first shell 21. When in use, the output shaft rotates to drive the threaded rod 24 to rotate. At this time, the connecting piece 25, under the action of the second bracket 222, moves axially on the threaded rod 24, thereby driving the fourth connecting end 2222 of the second bracket 222 to reciprocate, thereby driving the patient's affected leg to perform knee flexion exercise.

[0021] More specifically, the driving member 23 is a reduction motor.

[0022] refer to Figure 1 —5. More specifically, the fourth connecting end 2222 has a first connecting arm 2223 and a second connecting arm 2224, wherein the first connecting arm 2223 and the second connecting arm 2224 extend into the first shell 21, and the connecting member 25 is located between the first connecting arm 2223 and the second connecting arm 2224, and the first connecting arm 2223 and the second connecting arm 2224 are both rotatably connected to the connecting member 25. As can be understood by those skilled in the art, the interior of the first shell 21 is a cavity, wherein the first shell 21 has a top end surface, the first bracket 221 and the second bracket 222 are both located on the top end surface, and a first slot and a second slot are opened from the top end surface toward the interior of the first shell 21, and the first connecting arm 2223 and the second connecting arm 2224 extend into the first shell 21 from the first slot and the second slot.

[0023] More preferably, the first shell 21 further has a first limiting groove 211 and a second limiting groove 212, wherein the first limiting groove 211 and the second limiting groove 212 are respectively located on both sides of the second bracket 222, and a portion of the fourth connection end 2222 is located in the first limiting groove 211 and the second limiting groove 212; and the length extension direction of the first limiting groove 211 and the second limiting groove 212 is parallel to the length extension direction of the first shell 21. For explanation, the top end surface of the first shell 21 has a first limiting plate and a second limiting plate, Among them, the first limit plate and the second limit plate are mirror-set to each other on the top end surface, the first limit groove 211 is opened on the first limit plate, the second limit plate is opened on the second limit plate, and the fourth connection end 2222 is provided with limit axes on both sides, wherein the two limit axes are respectively extended into the first limit groove 211 and the second limit groove 212, so that when the fourth connection end 2222 performs reciprocating motion, it is constrained by the first limit groove 211 and the second limit groove 212, thereby ensuring the smooth movement of the first bracket 221 and the second bracket 222.

[0024] refer to Figure 1 —4. In the present embodiment, the first bracket 221 and the second bracket 222 both have a first fixing belt and a second fixing belt, wherein the first fixing belt and the second fixing belt are detachably connected to each other. When in use, after placing the patient's legs on the first bracket 221 and the second bracket 222, the patient's thigh is fixed to the first bracket 221 by the first fixing belt and the second fixing belt, and the patient's calf is fixed to the second bracket 222, so that the patient's affected leg can move synchronously with the first bracket 221 and the second bracket 222, thereby improving the training efficiency.

[0025] More specifically, the inner side of the first fixing strap is configured with a Velcro fleece surface, and the outer side of the second fixing strap is configured with a Velcro hook surface, wherein the Velcro fleece surface is fitted with the Velcro hook surface. When in use, the first fixing strap, the second fixing strap and the first bracket 221 / the second bracket 222 tighten the patient's thigh / calf to fix the patient's leg.

[0026] refer to Fig.10 In the present embodiment, the second bracket 222 also has a foot pedal 2225, wherein the foot pedal 2225 is located between the third connection end 2221 and the fourth connection end 2222, and the foot pedal 2225 is closer to the fourth connection end 2222 than the third connection end 2221; when in use, after fixing the patient's thigh and calf, the patient's foot steps on the foot pedal 2225, so that when the patient's affected leg is driven by the first bracket 221 and the second bracket 222 to perform knee flexion exercise, the patient's foot can be avoided from contacting the top end surface of the first shell 21, thereby avoiding damage to the patient's foot.

[0027] Preferably, the foot pedal 2225 is also provided with a strap for fixing the patient's foot on the foot pedal 2225 .

[0028] refer to Figure 7 —8, in the present embodiment, it also includes: a second training part 3, the second training part 3 is arranged in the installation slot 11, wherein the second training part 3 includes: a second shell 31, a second driving structure and a second leg bracket 32; wherein the second shell 31 has the same structure as the first shell 21, the second driving structure is the same as the first driving structure, and the second leg bracket 32 ​​has the same structure as the first leg bracket. Under this arrangement, the patient's legs are placed on the first leg bracket 22 and the second leg bracket 32 ​​respectively, and under the drive of the first driving structure and the second driving structure, the first leg bracket 22 and the second leg bracket 32 ​​are moved in a straight line. The leg support 32 simultaneously drives the patient's legs to perform knee flexion exercises, thereby exercising the patient's legs at the same time. For explanation, the second shell 31 is configured in the mounting groove 11, wherein the second shell 31 and the first shell 21 are mirror-imaged to each other, and the second driving structure is configured in the second shell 31. The second leg support 32 includes a third support and a fourth support, wherein the third support and the fourth support are rotatably connected, and one end of the third support away from the fourth support is rotatably connected to the second shell 31, and one end of the fourth support away from the third support is slidably connected to the second shell 31, and is connected to the second driving structure.

[0029] refer to Figure 1 —2 and Figure 7—10. In the present embodiment, the first shell 21 and the second shell 31 are both rotatably disposed in the mounting groove 11, wherein a transmission assembly is also included, and the transmission assembly is disposed in the first shell 21 and the second shell 31, wherein the transmission assembly is constructed to be able to drive the first shell 21 and the second shell 31 to rotate back and forth in opposite directions, thereby driving the patient's legs to perform opening and closing movements, thereby exercising the patient's buttocks muscles to improve the patient's pelvic stability.

[0030] More specifically, the transmission assembly includes: a second drive member 423, a first gear 41 and a second gear 42; the second drive member 423 is arranged in the first shell 21, wherein the second drive member 423 has a rotatable second output shaft; the first gear 41 is located in the first shell 21 and is connected to the second output shaft, the first gear 41 is cocentric with the second output shaft, and rotates synchronously with the second output shaft, wherein part of the first gear 41 is located outside the first shell 21; the second gear 42 is rotatably arranged in the second shell 31, and part of it is located outside the second shell 31, wherein the second gear 42 is meshed with the first gear 41, when the first gear 41 rotates, the second gear 42 rotates under the drive of the first gear 41, when in use, the first gear 41 is driven by the second drive member 423 to rotate, at this time, the first gear 41 drives the second gear 42 to rotate in the opposite direction, thereby driving the first shell 21 and the second shell 31 to rotate, thereby driving the patient's legs to open and close.

[0031] Specifically, the second driving member 423 also adopts a reduction motor.

[0032] In this embodiment, it also includes: a control module, wherein the control module is connected to the base 1; more specifically, the control module includes: a control mainboard, a display screen, a plurality of control buttons and a power supply assembly; wherein the control mainboard is arranged inside the base 1, and the driving members 23 of the first driving structure and the second driving structure and the second driving member 423 are electrically connected to the control mainboard to control the output shaft of each driving member 23 to rotate forward and reverse, so that the fourth connection end 2222 and the first gear 41 reciprocate; the display screen is arranged on the outer wall of the base 1, and the display screen is electrically connected to the control mainboard, and a plurality of control buttons are arranged on the outer wall of the base 1, and the plurality of control buttons are electrically connected to the control mainboard, and the output frequency of each driving member 23 is adjusted through the plurality of control buttons; the power supply assembly is used for an external power supply, wherein the power supply assembly is electrically connected to the control mainboard.

[0033] More specifically, the control buttons include: a first start-stop button, a second start-stop button, an adjustment button, and a timing button, wherein the first start-stop button is used to control the power supply to the first drive member 23, the second start-stop button is used to control the power supply to the second drive member 423, the adjustment button is used to control the output frequency of the first drive member 23 and the second drive member 423; the timing button is used to set the training time.

[0034] More specifically, the power supply assembly includes: a power supply wiring and a power plug, wherein the power supply wiring is used to connect the power plug to the control mainboard.

[0035] In this embodiment, the base 1 also includes: a seat cushion and a backrest, wherein the backrest is arranged on one side of the mounting groove 11, and the seat cushion is arranged between the backrest and the mounting groove 11. When in use, the patient sits on the seat cushion with his back leaning against the backrest, and then places his legs on the first leg support 22 and the second leg support 32. Driven by the first driving structure and the second driving structure, the first leg support 22 and the second leg support 32 simultaneously drive the patient's legs to perform knee flexion exercises, and assist the patient's legs to open and close movements.

[0036] The method of using the present invention: 1. First, let the patient sit on the cushion with his back against the back, and then place his legs on the first leg support and the second leg support, fix the patient's legs with the first fixing belt and the second fixing belt, and then use the straps to fix the patient's feet on the foot pedal; 2. Then, the first driving structure and the second driving structure are used to drive the first leg support and the second leg support to drive the patient's legs to switch between the flexion state and the extension state, so as to assist the patient in performing knee flexion exercises; 3. After the knee flexion exercise is completed, the first shell and the second shell are reciprocated by the transmission component to assist the patient to open and close the legs in the knee flexion state, so as to exercise the gluteus medius muscle of the patient, thereby strengthening the muscle strength there and enhancing the pelvic stability of the patient.

[0037] The above embodiments are only used to understand the present invention. It should be noted that, for those skilled in the art, several improvements can be made to the present invention without departing from the principles of the present invention, and these improvements will also fall within the scope of protection of the claims of the present invention.

Claims

1. A lower limb extension training device, characterized in that: These include, A base, wherein the base has a mounting groove; A first training part, the first training part comprising: a first shell, the first shell is configured in the installation slot; and A first driving structure, wherein the first driving structure is disposed in the first housing; and A first leg bracket, the first leg bracket comprises: a first bracket and a second bracket, the first bracket and the second bracket are rotatably connected to each other, the first bracket has a first connection end and a second connection end, the second bracket has a third connection end and a fourth connection end, the first connection end is rotatably connected to the first shell, the second connection end is rotatably connected to the third connection end, the fourth connection end is slidably connected to the first shell, and is connected to the first driving structure; Wherein, driven by the first driving structure, the fourth connection end reciprocates along the length extension direction of the first shell, so that the second connection end and the third connection end repeatedly move away from and approach the first shell.

2. The lower limb extension training device according to claim 1, characterized in that: The first driving structure comprises: A first driving member is disposed in the first housing, wherein the driving member has a first output shaft; A threaded rod is rotatably disposed in the first housing and connected to the first output shaft, wherein the threaded rod is driven by the first output shaft to axially rotate in the first housing; A connecting piece is connected to the threaded rod and the second bracket, wherein when the threaded rod rotates, the connecting piece moves axially along the axial extension direction of the threaded rod, so that the second bracket moves away from the first bracket and approaches the first bracket along the length extension direction of the first shell.

3. The lower limb extension training device according to claim 2, characterized in that: The fourth connecting end has a first connecting arm and a second connecting arm, wherein the first connecting arm and the second connecting arm extend into the first shell, the connecting member is located between the first connecting arm and the second connecting arm, and the first connecting arm and the second connecting arm are rotatably connected to the connecting member.

4. The lower limb extension training device according to claim 3, characterized in that: The first shell further has a first limiting groove and a second limiting groove, wherein the first limiting groove and the second limiting groove are respectively located on both sides of the second bracket, and the fourth connecting end portion is located in the first limiting groove and the second limiting groove.

5. The lower limb extension training apparatus according to claim 3, characterized in that: The length extension direction of the first limiting groove and the second limiting groove is parallel to the length extension direction of the first shell.

6. The lower limb extension training apparatus according to claim 1, characterized in that: The first bracket and the second bracket both have a first fixing belt and a second fixing belt, wherein the first fixing belt and the second fixing belt are detachably connected to each other.

7. The lower limb extension training apparatus according to claim 1, characterized in that: The second bracket also has a foot pedal, wherein the foot pedal is located between the third connection end and the fourth connection end, and the foot pedal is closer to the fourth connection end than the third connection end.

8. The lower limb extension training apparatus according to claim 1, characterized in that: Also includes: The second training part is arranged in the installation groove, wherein the second training part comprises: a second shell, a second driving structure and a second leg bracket; wherein the second shell has the same structure as the first shell, the second driving structure is the same as the first driving structure, and the second leg bracket has the same structure as the first leg.

9. The lower limb extension training device according to claim 8, characterized in that: The first shell and the second shell are both rotatably arranged in the installation groove, wherein a transmission component is also included, and the transmission component is arranged in the first shell and the second shell, wherein the transmission component is constructed to drive the first shell and the second shell to rotate reciprocatingly in opposite directions.

10. The lower limb extension training device according to claim 9, characterized in that: The transmission assembly comprises: The second driving member is disposed in the first housing, wherein the second driving member has a rotatable second output shaft; A first gear, the first gear is located in the first housing and connected to the second output shaft, the first gear is coaxial with the second output shaft and rotates synchronously with the second output shaft, wherein a portion of the first gear is located outside the first housing; The second gear is rotatably disposed in the second shell and is partially located outside the second shell, wherein the second gear is meshed with the first gear, and when the first gear rotates, the second gear is driven by the first gear to rotate.

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