Ankle pump exercise device capable of preventing foot drop
By designing a motor-driven gear system and an electric actuator to rotate the foot pedal, the problem of insufficient ankle pump movement in existing devices is solved, enabling full flexion, extension, and rotation of the foot, preventing foot drop and venous thrombosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-03-10
AI Technical Summary
Most existing ankle pump exercise devices that can prevent foot drop only have a single extension and retraction function, which means that the foot can only flex and extend forward and backward, and the ankle joint cannot rotate, resulting in insufficient ankle pump exercise.
A device was designed that includes a motor, gear 1, gear 2, a rotating plate, a foot pedal, a rotating seat, and an electric push rod. The motor drives the gears to mesh and rotate the foot pedal forward, backward, left, and right, thereby achieving flexion, extension, and small-amplitude rotation of the ankle joint. The electric push rod, in conjunction with the foot pedal, rotates on the rotating seat to complete a full ankle pump exercise.
It achieves full ankle pump movement in the feet, which can effectively prevent foot drop, improve the patient's quality of life, and prevent the occurrence of deep vein thrombosis in the lower extremities.
Smart Images

Figure CN223979926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ankle pump exercise technology, and in particular to an ankle pump exercise device that can prevent foot drop. Background Technology
[0002] Foot drop is caused by paralysis of the anterior and lateral calf muscles, and spasm and traction of the posterior calf muscles. It manifests as toe flexion, inability to dorsiflex, or weakened dorsiflexion function. Ankle pump exercises are ankle joint flexion and extension movements, similar to the working principle of a pump. By continuously moving the joint, they promote blood circulation in the lower limbs and strengthen muscle capacity. Therefore, early intervention with ankle pump exercises can improve the patient's later quality of life. Moreover, ankle pump exercises are simple to perform and do not affect the patient's vital signs. They can be used as an active exercise method for nursing staff to guide long-term bedridden patients or patients immobilized for various reasons to prevent foot drop. In addition to preventing foot drop, they can also effectively prevent the incidence of lower limb venous thrombosis in long-term bedridden patients.
[0003] Most existing ankle pump exercise devices that can prevent foot drop only have a single extension and retraction function, allowing the patient's foot to flex and extend forward and backward. However, during ankle pump exercise, the ankle joint also needs to rotate to a certain extent while the foot flexes and extends, so that the ankle pump exercise can be fully performed.
[0004] Therefore, addressing the issue that most existing ankle pump exercise devices for preventing foot drop only possess a single extension and retraction function, limiting foot flexion and extension to ankle joint rotation and resulting in insufficient ankle pump exercise, a new ankle pump exercise device for preventing foot drop can be designed. This device would consist of a motor, gears, a rotating plate, a foot pedal, a rotating base, and an electric actuator. Activating the electric actuator, in conjunction with the rotating base, would drive the foot pedal to rotate left and right, enabling the foot to flex and extend. Activating the motor would also drive the foot pedal to rotate back and forth, allowing for slight rotation of the ankle joint. The two components work together to fully complete the ankle pump exercise. Utility Model Content
[0005] To overcome the problem that most existing ankle pump exercise devices for preventing foot drop only have a single extension and retraction function, which means that the foot can only flex and extend forward and backward, and the ankle joint cannot rotate, resulting in insufficient ankle pump exercise.
[0006] The technical solution of this utility model is as follows: an ankle pump exercise device to prevent foot drop, including a base plate; a support seat is fixedly installed on the top of the base plate, an adjustment plate is installed on the top right side of the base plate, a mounting box is fixedly installed on the top of the adjustment plate, a motor is fixedly installed on the top rear side of the mounting box, a rotating rod is fixedly installed at the output end of the motor, a gear 1 and a gear 2 are installed at the bottom inside the mounting box, the gear 1 and gear 2 are meshed and connected, the gear 1 is located behind the gear 2, the other end of the rotating rod is fixedly installed on the top of the gear 1, a connecting rod is fixedly installed on the top of the gear 2, the other end of the connecting rod passes through the mounting box and a rotating plate is fixedly installed, a foot pedal is installed at the upper end of the rotating plate, a clearance groove is opened at the bottom of the foot pedal, a rotating seat is rotatably connected inside the clearance groove, the rotating seat is fixedly installed on the top left side of the rotating plate, an electric push rod is hinged to the top right side of the rotating plate, and the other end of the electric push rod is hinged to the upper right side of the foot pedal.
[0007] Preferably, starting motor one, the output end of motor one can drive the rotating rod to rotate, the rotating rod can drive gear one to rotate, gear one drives gear two to rotate through meshing, gear two can drive the foot pedal on the rotating plate to rotate through the connecting rod, starting electric push rod, the output end of electric push rod can drive the upper end of foot pedal to rotate on the rotating seat, the foot pedal can drive the patient's ankle joint to flex, extend and rotate, thereby completing ankle pump exercise.
[0008] Preferably, a limiting hole is provided on the top front side of the gear two, and a fixing rod is provided inside the limiting hole. The lower end of the fixing rod is fixedly set inside the bottom of the mounting box, and the other end of the fixing rod is fixedly set inside the top of the mounting box.
[0009] Preferably, a mounting groove is provided on the top right side of the base plate, and a second motor is fixedly installed on the right side of the base plate. A threaded rod is fixedly installed on the output end of the second motor, and the other end of the threaded rod passes through the base plate and is installed inside the mounting groove on the left side via a bearing.
[0010] Preferably, the outer thread of the threaded rod is connected to two moving blocks, the top of which is fixedly located at the bottom of the adjusting plate.
[0011] Preferably, a support pad is fixedly installed at the lower left side of the foot pedal, and the support pad is located at the upper end of the rotating seat.
[0012] Preferably, two straps are fixedly installed between the front and rear sides of the foot pedal, with the straps located at the upper end of the support pad.
[0013] Preferably, a second support pad is fixedly provided on the inner side of the support base, and a second strap is fixedly provided between the front and rear sides of the top of the support base.
[0014] The beneficial effects of this utility model are:
[0015] 1. By setting up motor one, gear one, gear two, rotating plate, foot pedal, rotating base, and electric push rod, starting the electric push rod will cause the foot pedal to rotate back and forth in conjunction with the rotating base. The foot pedal will then cause the user's foot to flex and extend. Starting motor one will cause gear one to rotate through the rotating rod. Gear one will then drive gear two to rotate through meshing. Gear two will then drive the foot pedal on the rotating plate to rotate back and forth through the connecting rod. The foot pedal will then cause the patient's ankle joint to rotate slightly. The two components work together to fully complete the ankle pump exercise. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the ankle pump exercise device of this utility model that can prevent foot drop.
[0017] Figure 2 The diagram shown is a three-dimensional structural representation of the internal structure of the ankle pump exercise device mounting box for preventing foot drop according to this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the foot pedal of the ankle pump exercise device that can prevent foot drop according to this utility model.
[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the mounting groove of the ankle pump exercise device of this utility model, which can prevent foot drop.
[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support base; 3. Adjusting plate; 4. Mounting box; 5. Motor 1; 6. Rotating rod; 7. Gear 1; 8. Gear 2; 9. Connecting rod; 10. Rotating plate; 11. Foot pedal; 12. Clearance groove; 13. Rotating base; 14. Electric actuator; 15. Support pad 1; 16. Strap 1; 17. Limiting hole; 18. Fixing rod; 19. Mounting groove; 20. Motor 2; 21. Threaded rod; 22. Moving block; 23. Support pad 2; 24. Strap 2. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4This utility model provides an embodiment of an ankle pump exercise device to prevent foot drop, including a base plate 1; a support seat 2 is fixedly installed on the top of the base plate 1, an adjustment plate 3 is installed on the top right side of the base plate 1, a mounting box 4 is fixedly installed on the top of the adjustment plate 3, a motor 5 is fixedly installed on the top rear side of the mounting box 4, a rotating rod 6 is fixedly installed at the output end of the motor 5, a gear 7 and a gear 8 are installed at the bottom inside the mounting box 4, the gear 7 and gear 8 are meshed and connected, the gear 7 is located on the rear side of the gear 8, the other end of the rotating rod 6 is fixedly installed on the top of the gear 7, a connecting rod 9 is fixedly installed on the top of the gear 8, the other end of the connecting rod 9 passes through the mounting box 4 and a rotating plate 10 is fixedly installed, a foot pedal 11 is installed at the upper end of the rotating plate 10, and the foot pedal 1... The bottom of the plate 10 has a clearance groove 12, and a rotating seat 13 is rotatably connected inside the clearance groove 12. The rotating seat 13 is fixedly set on the top left side of the rotating plate 10. An electric push rod 14 is hinged to the top right side of the rotating plate 10. The other end of the electric push rod 14 is hinged to the upper right side of the foot pedal 11. When the motor 5 is started, the output end of the motor 5 can drive the rotating rod 6 to rotate. The rotating rod 6 can then drive the gear 7 to rotate. The gear 7 drives the gear 8 to rotate through meshing. The gear 8 can then drive the foot pedal 11 on the rotating plate 10 to rotate through the connecting rod 9. When the electric push rod 14 is started, the output end of the electric push rod 14 can drive the upper end of the foot pedal 11 to rotate on the rotating seat 13. The foot pedal 11 can then drive the patient's ankle joint to flex, extend and rotate, thereby completing the ankle pump exercise.
[0023] Please see Figure 2 In this embodiment, a limiting hole 17 is provided on the top front side of the gear 2 8. A fixing rod 18 is provided inside the limiting hole 17. The lower end of the fixing rod 18 is fixedly provided inside the bottom of the mounting box 4, and the other end of the fixing rod 18 is fixedly provided inside the top of the mounting box 4. The limiting hole 17 facilitates the setting of the fixing rod 18. The fixing rod 18 can thus limit the rotation range of the foot pedal 11 driven by the gear 2 8, thereby avoiding damage to the patient's ankle joint caused by excessive rotation of the foot pedal 11.
[0024] Please see Figure 4In this embodiment, a mounting groove 19 is provided on the top right side of the base plate 1. A second motor 20 is fixedly installed on the right side of the base plate 1. A threaded rod 21 is fixedly installed at the output end of the second motor 20. The other end of the threaded rod 21 passes through the base plate 1 and is installed on the left side inside the mounting groove 19 by a bearing. Two moving blocks 22 are threadedly connected to the outer side of the threaded rod 21. The top of the moving blocks 22 is fixedly installed at the bottom of the adjusting plate 3. When the second motor 20 is started, the output end of the second motor 20 can drive the threaded rod 21 to rotate. The moving blocks 22 are driven by the thread of the threaded rod 21, thereby driving the adjusting plate 3 to move left and right. The adjusting plate 3 can then drive the foot pedal 11 to move left and right. The personnel can adjust the position of the foot pedal 11 according to the length of the patient's leg.
[0025] Please see Figures 1-3 In this embodiment, a support pad 15 is fixedly installed on the lower left side of the foot pedal 11. The support pad 15 is located on the upper end of the rotating seat 13. Two straps 16 are fixedly installed between the front and rear sides of the foot pedal 11. The straps 16 are located on the upper end of the support pad 15. A support pad 23 is fixedly installed on the inner side of the support seat 2. A strap 24 is fixedly installed between the front and rear sides of the top of the support seat 2. The support pad 15 can support the patient's heel. The straps 16 can fix the patient's instep. The support pad 23 can improve the patient's leg comfort. The strap 24 can fix the patient's leg.
[0026] During operation, the operator first starts motor 20. The output of motor 20 drives the threaded rod 21 to rotate. The moving block 22, acted upon by the thread of the threaded rod 21, moves the adjusting plate 3 left and right. The adjusting plate 3 then moves the foot pedal 11 left and right. After adjusting the foot pedal 11 to match the patient's foot, the patient's foot is first passed through strap 24, and the heel is placed on the support pad 15. The instep is secured by strap 16, and the leg is secured by strap 24. Then, the electric actuator 14 is activated, which drives the foot pedal 11 on the rotating seat 13. The foot pedal 11 rotates, causing the patient's foot to flex and extend. The motor 5 rotates back and forth, and the motor 5 drives the gear 7 to rotate via the rotating rod 6. The gear 7 drives the gear 8 to rotate via the meshing, and the gear 8 drives the foot pedal 11 on the rotating plate 10 to rotate via the connecting rod 9. The foot pedal 11 then causes the patient's ankle to rotate slightly. The two work together to complete the ankle pump movement of the patient's foot. The fixing rod 18 limits the rotation range of the gear 8, thus preventing the foot pedal 11 from rotating too much and causing damage to the patient's ankle joint.
[0027] Through the above steps, by setting up motor 5, gear 7, gear 8, rotating plate 10, foot pedal 11, rotating seat 13, and electric push rod 14, starting the electric push rod 14, the electric push rod 14 can work with the rotating seat 13 to drive the foot pedal 11 to rotate back and forth, thereby enabling the foot pedal 11 to flex and extend the patient's foot. Starting motor 5, motor 5 can drive the foot pedal 11 to rotate back and forth, thereby enabling the foot pedal 11 to rotate the patient's ankle joint slightly. The two work together to fully complete the ankle pump exercise, thus solving the problem that most existing ankle pump exercise devices that can prevent foot drop only have a single extension and retraction function, which means that the foot can only flex and extend back and forth, and the ankle joint cannot rotate, resulting in insufficient ankle pump exercise.
Claims
1. Ankle pump exercise device to prevent foot drop comprising a base plate (1); characterized in that: The top of the bottom plate (1) is fixedly provided with a support seat (2), the top right side of the bottom plate (1) is provided with an adjusting plate (3), the top of the adjusting plate (3) is fixedly provided with a mounting box (4), the top rear side of the mounting box (4) is fixedly provided with a motor one (5), the output end of the motor one (5) is fixedly provided with a rotating rod (6), the inside bottom of the mounting box (4) is installed with a gear one (7) and a gear two (8), the gear one (7) is engagedly connected with the gear two (8), the gear one (7) is located at the rear side of the gear two (8), the other end of the rotating rod (6) is fixedly arranged at the top of the gear one (7), the top of the gear two (8) is fixedly provided with a connecting rod (9), the other end of the connecting rod (9) penetrates through the mounting box (4) and is fixedly provided with a rotating plate (10), the upper end of the rotating plate (10) is provided with a foot pedal (11), the bottom of the foot pedal (11) is provided with a let go slot (12), the inside of the let go slot (12) is rotatably connected with a rotating seat (13), the rotating seat (13) is fixedly arranged at the top left side of the rotating plate (10), the top right side of the rotating plate (10) is hingedly connected with an electric push rod (14), the other end of the electric push rod (14) is hingedly connected to the right side upper end of the foot pedal (11).
2. The plantarflexion-preventable ankle-pumping-movement device according to claim 1, characterized by: The top front side of the gear two (8) is provided with a limiting hole (17), the inside of the limiting hole (17) is provided with a fixed rod (18), the lower end of the fixed rod (18) is fixedly arranged at the inside bottom of the mounting box (4), the other end of the fixed rod (18) is fixedly arranged at the inside top of the mounting box (4).
3. The plantarflexion-preventable ankle pump exercise device according to claim 1, characterized by: The top right side of the bottom plate (1) is provided with a mounting slot (19), the right side of the bottom plate (1) is fixedly provided with a motor two (20), the output end of the motor two (20) is fixedly provided with a threaded rod (21), the other end of the threaded rod (21) penetrates through the bottom plate (1) and is installed in the inside left side of the mounting slot (19) through a bearing.
4. The plantarflexion-preventable ankle pump exercise device according to claim 3, characterized by: The outside of the threaded rod (21) is threadedly connected with two moving blocks (22), the top of the moving block (22) is fixedly arranged at the bottom of the adjusting plate (3).
5. The plantarflexion-preventive ankle pump exercise device according to claim 1, characterized by: The left side lower end of the foot pedal (11) is fixedly provided with a support pad one (15), the support pad one (15) is located at the upper end of the rotating seat (13).
6. The plantarflexion-preventive ankle pump exercise device according to claim 1, characterized by: The front and rear sides of the foot pedal (11) are fixedly provided with two binding belts one (16), the binding belt one (16) is located at the upper end of the support pad one (15).
7. The plantarflexion-preventive ankle pump exercise device according to claim 1, characterized by: The inside of the support seat (2) is fixedly provided with a support pad two (23), the top front and rear sides of the support seat (2) are fixedly provided with a binding belt two (24).