Lower limb exercise device

Abstract

The utility model relates to the technical field of orthopedic recovery training, in particular to a lower limb exercise device which comprises a bottom plate, two ends of the top of the bottom plate are fixedly connected with a fixing frame, and one end of the fixing frame is in threaded connection with a threaded rod. According to the lower limb exercising device, through the arrangement of the fixing frame, the threaded rod, the adjusting plate, the sliding groove, a pulling plate, a spring A, a spring B and a clamping ball, when the lower limb exercising device is used, a worker can rotate the threaded rod at one end of the fixing frame, the threaded rod drives the adjusting plate to move, the length of the spring A is increased, and the strength of the device in the stretching process is changed; when the patient relaxes the legs, the pulling plate is pulled to move in a sliding groove in the inner wall of the fixing frame, the pulling plate tensions a spring A, when the patient relaxes the legs, the pulling plate is dragged to the original position due to the restoring force of the spring A, and at the moment, clamping balls at the two ends of the pulling plate are squeezed into clamping grooves in the upper side and the lower side of the inner wall of the sliding groove by springs B.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic rehabilitation training technology, specifically a lower limb exercise device. Background Technology

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system and uses drugs, surgery and physical methods to maintain and develop the normal shape and function of this system. A lower limb exercise device is used in orthopedic rehabilitation.

[0003] However, existing lower limb exercise devices have the following drawbacks:

[0004] (1) Existing lower limb exercise devices have weak adjustment functions. When using them, because existing orthopedic rehabilitation devices cannot be adjusted according to the patient's recovery status, repeated use of a single training intensity may lead to a decrease in the recovery effect.

[0005] (2) Existing lower limb exercise devices have weak maintenance functions. During use, most of the existing exercise devices use springs. The springs may be damaged due to long-term stretching. Utility Model Content

[0006] The purpose of this invention is to provide a lower limb exercise device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lower limb exercise device, comprising a base plate, with fixed frames fixedly connected to both ends of the top of the base plate, a threaded rod threadedly connected to one end of the fixed frame, an adjusting plate rotatably connected to one end of the threaded rod, a sliding groove provided at one end of the inner sidewall of the fixed frame, a pull plate slidably connected to the inner sidewall of the sliding groove, a fixed clamp fixedly connected to the bottom of one end of the pull plate, a connecting clamp snapped into the top of one end of the pull plate, a fixed bolt threadedly connected to the top of the connecting clamp, a spring A snapped into the inner wall of the connecting clamp, and circular slots provided at the top of both ends of the pull plate, a spring B fixedly connected to the inner wall of the circular slots, and a retaining ball fixedly connected to the top of the spring B.

[0008] Preferably, a connecting strap is fixedly connected to the other end of the pull plate, and a binding strap is fixedly connected to one end of the connecting strap. The staff member binds the binding strap at one end of the connecting strap to the patient's leg, and the patient stretches his leg to perform rehabilitation training.

[0009] Preferably, a support rod is fixedly connected to the top edge of the base plate, and a seat is fixedly connected to the top of the support rod, so that the patient needs to sit on the seat on the support rod.

[0010] Preferably, the inner wall of the spring B is provided with a telescopic rod, one end of which is fixedly connected to the center of the back of the ball. The telescopic rod can prevent the spring B from tilting or deforming.

[0011] Preferably, a limiting groove is provided at the other end of the inner sidewall of the fixed frame, and the inner wall of the limiting groove is slidably connected to both ends of the adjusting plate. Both ends of the adjusting plate are in the limiting groove within the fixed frame, ensuring that the spring A is in a horizontal position when stretched and will not tilt or deform.

[0012] Preferably, a support column is fixedly connected to the bottom edge of the base plate, and a base is fixedly connected to the bottom of the support column. The support column and the base provide stability for the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This lower limb exercise device, through the arrangement of a fixed frame, threaded rod, adjusting plate, sliding groove, pull plate, spring A, spring B, and retaining balls, allows the operator to rotate the threaded rod at one end of the fixed frame during use. This causes the threaded rod to move the adjusting plate, lengthening spring A and thus changing the intensity of the device's stretching. When the patient performs rehabilitation training, the pull plate moves within the sliding groove on the inner wall of the fixed frame, tightening spring A. When the patient relaxes their leg, the pull plate is pulled back to its original position due to the restorative force of spring A. At this time, the retaining balls at both ends of the pull plate are pressed into the retaining grooves on the upper and lower sides of the inner wall of the sliding groove by spring B, preventing excessive rebound force of spring A from causing injury to the patient's leg during rapid rebound. This design allows the operator to easily adjust the intensity of the training device while improving the protection of the patient's leg.

[0015] 2. This lower limb exercise device, through the setting of an adjustment plate, a pull plate, a fixing clamp, a connecting clamp, a fixing bolt, and spring A, may experience irreversible deformation of spring A due to repeated stretching after prolonged use. The operator can rotate the fixing bolt on the pull plate to remove the connecting clamp, replace spring A, and let the new spring A fit into the fixing clamp. The connecting clamp, in conjunction with the fixing clamp, holds spring A in place. The fixing bolt is then screwed into the corresponding threaded grooves of the pull plate and the connecting clamp. The connection method between spring A and the adjustment plate is consistent. This design facilitates the replacement of damaged springs and ensures the effectiveness of the training. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the adjustment plate of this utility model;

[0018] Figure 3This is a schematic diagram of the pull plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the interior of the fixed frame of this utility model.

[0020] In the diagram: 1. Base plate; 2. Fixed frame; 3. Threaded rod; 4. Adjusting plate; 5. Sliding groove; 6. Pull plate; 7. Fixed clamp; 8. Connecting clamp; 9. Fixed bolt; 10. Spring A; 11. Spring B; 12. Clamping ball; 13. Connecting strap; 14. Strap; 15. Support rod; 16. Seat; 17. Telescopic rod; 18. Support column; 19. Base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4As shown, this utility model provides a technical solution: a lower limb exercise device, including a base plate 1, with fixed frames 2 fixedly connected to both ends of the top of the base plate 1, a threaded rod 3 threadedly connected to one end of the fixed frame 2, an adjusting plate 4 rotatably connected to one end of the threaded rod 3, a sliding groove 5 opened at one end of the inner side wall of the fixed frame 2, a pull plate 6 slidably connected to the inner side wall of the sliding groove 5, a fixing clip 7 fixedly connected to the bottom of one end of the pull plate 6, a connecting clip 8 snapped into the top of one end of the pull plate 6, a fixing bolt 9 threadedly connected to the top of the connecting clip 8, a spring A10 snapped into the inner wall of the connecting clip 8, and circular slots opened at the top of both ends of the pull plate 6, with springs B11 fixedly connected to the inner walls of the circular slots. A retaining ball 12 is fixedly connected to the top of spring B11. Through the arrangement of the fixed frame 2, threaded rod 3, adjusting plate 4, sliding groove 5, pull plate 6, spring A10, spring B11, and retaining ball 12, during use, the operator can rotate the threaded rod 3 at one end of the fixed frame 2, causing the threaded rod 3 to move the adjusting plate 4, thus lengthening the spring A10 and changing the tension of the device. When the patient performs rehabilitation training, it pulls the pull plate 6 within the sliding groove 5 on the inner wall of the fixed frame 2, tightening the spring A10. When the patient relaxes their legs, the restorative force of the spring A10 pulls the pull plate 6 back to its original position. At this time, the retaining balls at both ends of the pull plate 6... Spring A10 is pressed into the grooves on the upper and lower sides of the inner wall of the sliding groove 5 by spring B11 to prevent excessive rebound force and potential injury to the patient's leg during rapid rebound. This design allows staff to easily adjust the intensity of the training device while improving the protection of the patient's leg. With the adjustment plate 4, pull plate 6, fixing clip 7, connecting clip 8, fixing bolt 9, and spring A10 in place, after prolonged use, spring A10 may undergo irreversible deformation due to repeated stretching. Staff can then rotate the fixing bolt 9 on the pull plate 6 to remove the connecting clip 8 and replace spring A10. The new spring A10 is then secured in the fixing clamp 7, and the connecting clamp 8 is used to clamp the spring A10 in conjunction with the fixing clamp 7. The fixing bolt 9 is then screwed into the corresponding threaded grooves of the pull plate 6 and the connecting clamp 8. The connection method of the spring A10 and the adjusting plate 4 is consistent. This arrangement makes it convenient for staff to replace damaged springs and ensures the effectiveness of device training. It should be noted that the sliding groove 5 has a slot for docking with the ball 12 at the end closest to the patient, but not at the end furthest from the patient. Otherwise, the rebound force of the spring A10 may decrease, preventing the pull plate 6 from returning to its original position. The elastic strength of the spring B11 needs to be selected according to the strength of the spring A10 to ensure better cooperation between the two.

[0023] The other end of the pull plate 6 is fixedly connected to a connecting strap 13, and one end of the connecting strap 13 is fixedly connected to a binding strap 14. With the pull plate 6, the connecting strap 13 and the binding strap 14, when in use, the staff will tie the binding strap 14 at one end of the connecting strap 13 to the patient's leg, and the patient will stretch his / her leg to perform rehabilitation training.

[0024] A support rod 15 is fixedly connected to the top edge of the base plate 1, and a seat 16 is fixedly connected to the top of the support rod 15. With the arrangement of the base plate 1, the support rod 15 and the seat 16, the patient needs to sit on the seat 16 on the support rod 15 when in use.

[0025] The inner wall of spring B11 is provided with a telescopic rod 17. One end of the telescopic rod 17 is fixedly connected to the center of the back of the locking ball 12. Through the arrangement of spring B11, telescopic rod 17 and locking ball 12, the telescopic rod 17 can prevent spring B11 from tilting and deforming during use.

[0026] A limiting groove is provided at the other end of the inner side wall of the fixed frame 2. The inner wall of the limiting groove is slidably connected to both ends of the adjusting plate 4. With the setting of the fixed frame 2 and the adjusting plate 4, when in use, both ends of the adjusting plate 4 are in the limiting groove in the fixed frame 2, ensuring that the spring A10 is in a horizontal position when stretched and will not tilt or deform.

[0027] A support column 18 is fixedly connected to the bottom edge of the base plate 1, and a base 19 is fixedly connected to the bottom of the support column 18. Through the arrangement of the base plate 1, the support column 18 and the base 19, the support column 18 and the base 19 provide stability for the device during use.

[0028] In this invention, the working steps of the device are as follows:

[0029] First step: The patient needs to sit on the seat 16 on the support rod 15. The staff will tie the strap 14 at one end of the connecting strap 13 to the patient's leg. When the patient is doing rehabilitation training, the pull plate 6 will be pulled to move in the sliding groove 5 on the inner wall of the fixed frame 2. The pull plate 6 will tighten the spring A10. When the patient relaxes his leg, the pull plate 6 will be pulled back to its original position due to the restorative force of the spring A10. At this time, the retaining balls 12 on both ends of the pull plate 6 will be squeezed into the retaining grooves on the upper and lower sides of the inner wall of the sliding groove 5 by the spring B11 to prevent the spring A10 from rebounding too strongly and causing damage to the patient's leg when it rebounds quickly.

[0030] The second step: The staff can rotate the threaded rod 3 at one end of the fixed frame 2, so that the threaded rod 3 drives the adjusting plate 4 to move, and stretch the length of the spring A10 to change the strength of the device when it is stretched.

[0031] Third step: After the device has been used for a long time, spring A10 may undergo irreversible deformation due to repeated stretching to different degrees. The operator can rotate the fixing bolt 9 on the pull plate 6 to remove the connecting clip 8, replace spring A10, and let the new spring A10 be inserted into the fixing clip 7. Let the connecting clip 8 cooperate with the fixing clip 7 to clamp spring A10. Screw the fixing bolt 9 into the corresponding thread grooves of the pull plate 6 and the connecting clip 8. The connection method of spring A10 and the adjustment plate 4 is the same, and the same method is used for disassembly and installation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lower limb exercise device, comprising a base plate (1), characterized in that: The top two ends of the base plate (1) are fixedly connected to a fixed frame (2). One end of the fixed frame (2) is threadedly connected to a threaded rod (3). One end of the threaded rod (3) is rotatably connected to an adjusting plate (4). One end of the inner sidewall of the fixed frame (2) is provided with a sliding groove (5). The inner sidewall of the sliding groove (5) is slidably connected to a pull plate (6). One end of the pull plate (6) is fixedly connected to a fixed clamp (7). One end of the pull plate (6) is clamped to a connecting clamp (8). The top of the connecting clamp (8) is threadedly connected to a fixing bolt (9). The inner wall of the connecting clamp (8) is clamped to a spring A (10). The top of both ends of the pull plate (6) is provided with a circular slot. The inner wall of the circular slot is fixedly connected to a spring B (11). The top of the spring B (11) is fixedly connected to a ball (12).

2. The lower limb exercise device according to claim 1, characterized in that: The other end of the pull plate (6) is fixedly connected to a connecting strap (13), and one end of the connecting strap (13) is fixedly connected to a binding strap (14).

3. The lower limb exercise device according to claim 1, characterized in that: A support rod (15) is fixedly connected to the top edge of the base plate (1), and a seat (16) is fixedly connected to the top of the support rod (15).

4. The lower limb exercise device according to claim 1, characterized in that: The inner wall of the spring B (11) is provided with a telescopic rod (17), one end of which is fixedly connected to the center of the back of the ball (12).

5. The lower limb exercise device according to claim 1, characterized in that: A limiting groove is provided at the other end of the inner sidewall of the fixed frame (2), and the inner wall of the limiting groove is slidably connected to both ends of the adjusting plate (4).

6. The lower limb exercise device according to claim 1, characterized in that: The bottom edge of the base plate (1) is fixedly connected to a support column (18), and the bottom of the support column (18) is fixedly connected to a base (19).

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