Ankle pump movement counter

Abstract

The invention relates to the technical field of rehabilitation training instruments, and discloses an ankle pump movement counter which comprises a support, and a foot support is rotatably mounted on the support. Through cooperation of the rocker arm, the sliding block and the swing arm, swing of the rocker arm is converted into reciprocating deflection of the foot support, then the ankle joint of a user is accurately dragged to complete standard ankle pump movement actions of dorsal stretching and plantar flexion, and normalization of rehabilitation training is ensured; by means of the matched design of the sliding plate and the combined groove, the swing angle of the swing arm is gradually increased, the characteristic that the initial joint movement capacity of a rehabilitation patient is weak is achieved, the patient can be guided to complete training step by step, joint injuries or body feeling discomfort caused by direct large-angle movement are reduced, and the safety and comfort of rehabilitation training are greatly improved; and counting is triggered only when the foot support drives the ankle joint to complete ankle pump movement with the standard amplitude and the sliding plate slides to the arc groove and makes contact with the travel switch, so that wrong counting of non-standard actions is effectively eliminated, and the accuracy and effectiveness of counting are ensured.

Description

Technical Field

[0001] This invention belongs to the field of rehabilitation training equipment technology, specifically, it relates to an ankle pump motion counter. Background Technology

[0002] Ankle pump exercises are an important rehabilitation training method in clinical practice to promote blood circulation in the limbs and restore joint mobility. Ankle pump exercise counters are commonly used devices to assist this training. They can count and monitor training movements, providing data reference for rehabilitation effect evaluation, and are widely used in postoperative and joint injury rehabilitation scenarios.

[0003] However, existing ankle pump exercise counters have problems in adapting to the initial training needs of rehabilitation patients. When patients are initially training, they may experience significant discomfort due to the large-angle ankle pump exercise training, which greatly reduces the comfort of rehabilitation training. Furthermore, since patients' movements are not yet standardized at the beginning of training, counting at this time may result in insufficient training time and volume, affecting the later rehabilitation training.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An ankle pump motion counter includes a bracket on which a footrest is rotatably mounted.

[0006] A protective cover is installed on the outer wall of the bracket. A rocker arm is rotatably mounted on the protective cover. A slider is slidably mounted on the rocker arm. A swing arm is mounted on the rotation center of the footrest. The slider is slidably connected to the swing arm. By driving the rocker arm to swing, the swing arm is driven to swing synchronously, so that the footrest deflects and completes the ankle pump exercise. A sliding plate is mounted on the slider, and a tension spring is installed between the sliding plate and the rocker arm. The tension spring is used to pull the slider to move towards the rotation center. The sliding plate is slidably connected to the combination groove opened in the side wall of the protective cover. The combined groove includes several pairs of straight grooves, and a reversing groove connects adjacent straight grooves. The end of the straight groove near the center of rotation is connected to an arc groove, and a limit switch is provided on the side wall of the arc groove. When the rocker arm swings, it pulls the slide along different straight grooves, and the slider moves down under the action of the tension spring, thereby driving the swing arm to gradually increase the deflection angle. When it slides to the arc groove, it deflects at a fixed angle and completes one ankle pump movement count after contacting the limit switch.

[0007] In a preferred embodiment of the present invention, the bracket is L-shaped and integrally cast. The bracket has several pairs of mounting ears installed on its side wall, and mounting holes are opened inside the several pairs of mounting ears to facilitate interconnection with external structures. A controller is installed inside the bracket. The controller is used to receive limit switch signals and process the signals to transmit them to an externally connected display screen to achieve the counting purpose.

[0008] In a preferred embodiment of the present invention, a leg rest is mounted on the bracket, and the leg rest is connected to the bracket by bolts. A pair of soft pads are mounted on the footrest, and the pair of soft pads correspond to the user's ankle joint. A leg strap is mounted on the leg rest. A side rocker is rotatably mounted on the footrest, and a torsion spring is mounted at the center of the side rocker's rotation. The side rocker is used to drive the foot to swing left and right. An foot strap is mounted on the side rocker. The leg strap is used to wrap around the user's leg, and the foot strap is used to wrap around the user's foot.

[0009] In a preferred embodiment of the present invention, a support frame is mounted on the bracket, and a positioning shaft is mounted through the support frame. One end of the positioning shaft is connected to the rotation center of the footrest, and the other end of the positioning shaft is connected to the rotation center of the rocker arm.

[0010] In a preferred embodiment of the present invention, the protective cover covers the outer side wall of the rocker arm and the swing arm. A swing motor is installed on the side wall of the protective cover. A synchronous shaft is installed at the output end of the swing motor. The synchronous shaft passes through the outer side wall of the protective cover. The end of the output end of the synchronous shaft is connected to the rotation center of the rocker arm. The swing motor is used to drive the rocker arm to swing back and forth.

[0011] In a preferred embodiment of the present invention, the rocker arm is provided with a vertical groove, and a slider is slidably mounted on the groove. A sliding rod is mounted on the slider. The swing arm is provided with a strip groove, and the sliding rod is slidably mounted on the strip groove. The width of the strip groove is adapted to the diameter of the sliding rod. The rotation center of the rocker arm and the rotation center of the swing arm are not on the same vertical line.

[0012] In a preferred embodiment of the present invention, a guide rod is installed through the skateboard, and guide seats are installed at both ends of the guide rod. The bottom of the guide seat is welded to the side wall of the rocker arm, and a tension spring is sleeved on the outer side wall of the guide rod. One end of the tension spring is installed on the side wall of the guide seat, and the other end of the tension spring is installed on the side wall of the skateboard.

[0013] In a preferred embodiment of the present invention, a positioning cover is installed on the side wall of the slide plate, and a rod is movably inserted inside the positioning cover. The end of the rod is slidably disposed on the combination groove, and an inclined surface is provided on the upper surface of the end of the rod. When the slide plate moves up and resets, the inclined surface is pressed against the side wall of the combination groove, and the rod is pressed back, causing the rod to separate from the combination groove.

[0014] In a preferred embodiment of the present invention, a baffle is installed inside the positioning cover. One end of the baffle is connected to the end of the insertion rod, and a compression spring is provided at the other end of the baffle. The other end of the compression spring is engaged with the side wall of the positioning cover. The compression direction of the compression spring is on the same straight line as the moving direction of the insertion rod.

[0015] In a preferred embodiment of the present invention, the length of the straight groove near the rotation center of the rocker arm is shorter than the length of the straight groove near the outer side, and several pairs of straight grooves and reversing grooves are distributed in an S-shape, and the rotation center of the arc groove is the same as the rotation center of the rocker arm.

[0016] Compared with the prior art, the present invention has the following advantages: This invention utilizes the coordinated operation of a rocker arm, slider, and swing arm to transform the swing of the rocker arm into the reciprocating deflection of the footrest. This precisely guides the user's ankle joint to complete standard ankle pump movements of dorsiflexion and plantarflexion, ensuring the standardization of rehabilitation training. Furthermore, through the coordinated design of the sliding plate and the combination groove, combined with the effect of the tension spring pulling the slider towards the center of rotation of the rocker arm, the swing angle of the swing arm is gradually increased. This is tailored to the characteristics of weak joint mobility in the early stages of rehabilitation patients, guiding them to complete training step by step and reducing joint damage or discomfort caused by direct large-angle movements. This significantly improves the safety and comfort of rehabilitation training. Moreover, counting is only triggered when the footrest drives the ankle joint to complete a standard range of ankle pump movements and the sliding plate slides into the arc groove and contacts the limit switch, effectively eliminating miscounting of non-standard movements and ensuring the accuracy and effectiveness of counting.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A front view of an ankle pump motion counter; Figure 2 A side view of an ankle pump motion counter Figure 1 ; Figure 3 A side view of an ankle pump motion counter Figure 2 ; Figure 4 An ankle pump motion counter Figure 3 Enlarged view of point A in the middle; Figure 5 A cross-sectional view of the positioning cover of an ankle pump motion counter; Figure 6 A local ankle pump motion counter Figure 1 ; Figure 7 A local ankle pump motion counter Figure 2 ; Figure 8 A 3D diagram of a combination groove for an ankle pump motion counter; Figure 9 This is a plan view of a combination slot for an ankle pump motion counter.

[0019] In the diagram: 1. Bracket; 11. Mounting ear; 111. Mounting hole; 12. Leg rest; 121. Leg strap; 13. Foot rest; 131. Foot strap; 132. Soft pad; 133. Support frame; 134. Positioning shaft; 135. Side rocker; 136. Torsion spring; 2. Protective cover; 21. Swing motor; 211. Synchronous shaft; 22. Rocker arm; 221. Slider; 222. Slide groove; 223. Slide rod; 23. Swing arm; 231. Strip groove; 24. Slide plate; 241. Guide rod; 242. Guide seat; 243. Tension spring; 25. Positioning cover; 251. Insert rod; 252. Inclined surface; 253. Baffle; 254. Compression spring; 26. Combination groove; 261. Straight groove; 262. Reversing groove; 263. Circular groove; 27. Limit switch. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention. Example 1:

[0021] like Figures 1 to 9 As shown, an ankle pump exercise counter includes a bracket 1, on which a footrest 13 is rotatably mounted. A protective cover 2 is mounted on the outer wall of the bracket 1, and a rocker arm 22 is rotatably mounted on the protective cover 2. A slider 221 is slidably mounted on the rocker arm 22. A swing arm 23 is mounted at the rotation center of the footrest 13. The slider 221 is slidably connected to the swing arm 23. By driving the rocker arm 22 to swing, the swing arm 23 is driven to swing synchronously, causing the footrest 13 to deflect and complete the ankle pump exercise. A slide plate 24 is mounted on the slider 221. A tension spring 243 is installed between the slide plate 24 and the rocker arm 22. The tension spring 243 is used to pull the slider 221 to move towards the rotation center. The slide plate 24 is slidably connected to the combination groove 26 opened on the side wall of the protective cover 2. The combination groove 26 includes several pairs of straight grooves 261, and a reversing groove 262 is connected between adjacent straight grooves 261. The end of the straight groove 261 near the rotation center is connected to an arc groove 263, and a limit switch 27 is provided on the side wall of the arc groove 263. When the rocker arm 22 swings, it pulls the slide plate 24 to slide along different straight grooves 261. Under the action of the tension spring 243, the slider 221 moves down, thereby driving the rocker arm 23 to gradually increase the deflection angle. When it slides to the arc groove 263, it deflects at a certain angle and completes one ankle pump movement count after contacting the limit switch 27.

[0022] like Figures 1 to 9 As shown, in a specific embodiment, the bracket 1 is L-shaped and integrally cast. Several pairs of mounting ears 11 are installed on the side wall of the bracket 1, and mounting holes 111 are formed inside the mounting ears 111. The mounting holes 111 facilitate connection with external structures. A controller is installed inside the bracket 1. The controller receives signals from the limit switch 27 and processes and transmits the signals to an externally connected display screen to achieve the counting purpose. The L-shaped bracket 1 is integrally cast, improving its structural strength and stability. The mounting ears 11 and mounting holes 111 facilitate fixing the bracket 1 to external structures, ensuring the overall installation of the device is secure. The controller can receive, process, and transmit signals from the limit switch 27, and output counting information, allowing the user to intuitively view the number of movements.

[0023] like Figures 1 to 9 As shown, further, a leg rest 12 is installed on the bracket 1, and the leg rest 12 is connected to the bracket 1 by bolts. A pair of soft pads 132 are installed on the foot rest 13, and the pair of soft pads 132 correspond to the user's ankle joint. A leg strap 121 is installed on the leg rest 12. A side rocker plate 135 is rotatably installed on the foot rest 13, and a torsion spring 136 is installed between the rotation center of the side rocker plate 135 and the leg rest 13. The side rocker plate 135 is used to drive the foot to swing left and right. A foot strap 131 is installed on the side rocker plate 135. The leg strap 121 is used to wrap around the user's leg, and the foot strap 131 is used to wrap around the user's foot. The leg support 12 provides support for the user's legs. The bolt connection facilitates the disassembly and adjustment of the leg support 12. The soft pad 132 enhances the comfort of the user's ankle joint contact and avoids pressure injury during exercise. The leg strap 121 and foot strap 131 can fix the legs and feet respectively to prevent body displacement during exercise, ensure proper ankle pump exercise movements, and improve rehabilitation effects. Example 2:

[0024] The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, a support frame 133 is mounted on the bracket 1, and a positioning shaft 134 is mounted through the support frame 133. One end of the positioning shaft 134 is connected to the rotation center of the footrest 13, and the other end is connected to the rotation center of the rocker arm 22. The support frame 133 provides stable support for the positioning shaft 134, which links the rotation centers of the footrest 13 and the rocker arm 22, ensuring that the swing of the rocker arm 22 is accurately transmitted to the footrest 13, reducing deviations in the transmission process, and improving the synchronization and stability of the footrest 13's deflection action.

[0025] like Figures 1 to 9 As shown, in a specific embodiment, a protective cover 2 covers the outer walls of the rocker arm 22 and the swing arm 23. A swing motor 21 is installed on the side wall of the protective cover 2, and a synchronous shaft 211 is installed at the output end of the swing motor 21. The synchronous shaft 211 is movably connected to the outer wall of the protective cover 2, and the end of the output end of the synchronous shaft 211 is connected to the rotation center of the rocker arm 22. The swing motor 21 is used to drive the rocker arm 22 to swing back and forth. The protective cover 2 fully covers the transmission structure such as the rocker arm 22 and the swing arm 23, which can effectively prevent dust and collisions and protect the service life of the transmission components. The swing motor 21 provides continuous and stable power to the rocker arm 22 through the synchronous shaft 211, realizing the automatic reciprocating swing of the rocker arm 22 without manual drive, reducing the difficulty of operation for users, and adapting to the autonomous movement needs of rehabilitation patients.

[0026] like Figures 1 to 9 As shown, the rocker arm 22 further includes a vertical groove 222, on which a slider 221 is slidably mounted. A sliding rod 223 is mounted on the slider 221. The swing arm 23 has a strip groove 231 on which the sliding rod 223 is slidably positioned. The width of the strip groove 231 is matched with the diameter of the sliding rod 223. The rotation center of the rocker arm 22 and the rotation center of the swing arm 23 are not on the same vertical line. The vertical groove 222 facilitates the sliding of the slider 221. The matching design of the sliding rod 223 and the strip groove 231 ensures smooth sliding between the slider 221 and the swing arm 23, reducing transmission jamming. The misalignment of the rotation centers of the rocker arm 22 and the swing arm 23 allows the circular oscillation of the rocker arm 22 to be accurately converted into the deflection oscillation of the swing arm 23, improving transmission efficiency and motion accuracy. Example 3:

[0027] The difference between the above embodiments and this embodiment is that: Figures 1 to 9As shown, a guide rod 241 is installed through the slide plate 24. Guide seats 242 are installed at both ends of the guide rod 241. The bottom of the guide seats 242 is welded to the side wall of the rocker arm 22. A tension spring 243 is sleeved on the outer side wall of the guide rod 241. One end of the tension spring 243 is installed on the side wall of the guide seat 242, and the other end is installed on the side wall of the slide plate 24. The cooperation of the guide rod 241 and the guide seat 242 provides precise guidance for the sliding of the slide plate 24, preventing the slide plate 24 from deviating during movement and ensuring that the slide plate 24 slides stably along the combination groove 26. At the same time, the installation method of the tension spring 243 is more stable and can provide uniform and continuous tension, ensuring the stability and consistency of the movement of the slider 221.

[0028] like Figures 1 to 9 As shown, in a specific embodiment, a positioning cover 25 is installed on the side wall of the slide plate 24. The positioning cover 25 is movably inserted into the insertion rod 251. The end of the insertion rod 251 is slidably mounted on the combination groove 26. An inclined surface 252 is provided on the upper surface of the end of the insertion rod 251. When the slide plate 24 moves upward and resets, the inclined surface 252 is pressed against the side wall of the combination groove 26, and the insertion rod 251 is compressed and retracted, so that the insertion rod 251 is separated from the combination groove 26. A baffle 253 is installed inside the positioning cover 25. One end of the baffle 253 is connected to the end of the insertion rod 251. A compression spring 254 is provided on the other end of the baffle 253, and the other end of the compression spring 254 is engaged with the side wall of the positioning cover 25. The compression direction of the compression spring 254 is on the same straight line as the moving direction of the insertion rod 251. The positioning cover 25 can protect the insertion rod 251, the baffle 253, and the compression spring 254. The inclined surface 252 at the end of the insertion rod 251 facilitates the separation of the insertion rod 251 from the combination groove 26 when the device is reset. The cooperation of the baffle 253 and the compression spring 254 can realize the automatic extension and retraction reset of the insertion rod 251, ensuring the stable engagement and separation of the insertion rod 251 from the combination groove 26, and improving the convenience of the device reset operation.

[0029] like Figures 1 to 9 As shown, furthermore, the length of the straight groove 261 near the rotation center of the rocker arm 22 is shorter than the length of the straight groove 261 near the outer side, and several pairs of straight grooves 261 and reversing grooves 262 are distributed in an S-shape, and the rotation center of the arc groove 263 is the same as the rotation center of the rocker arm 22. The length difference design of the straight grooves 261 can achieve a uniform increase in the deflection angle of the swing arm 23, which conforms to the joint movement rhythm of the rehabilitation patient and avoids joint damage caused by sudden angle changes. The S-shaped distribution of the straight grooves 261 and reversing grooves 262 can ensure that the insertion rod 251 can smoothly switch the sliding trajectory. The design of the arc groove 263 being consistent with the rotation center of the rocker arm 22 can ensure that the footrest 13 can make a stable deflection at a certain angle, ensuring that the ankle pump movement amplitude meets the standard, and providing a guarantee for the precise triggering and counting of the limit switch 27.

[0030] The implementation principle of the ankle pump motion counter of the present invention is as follows: Before using the device, the user places their legs on the leg rest 12 and secures them with the leg straps 121. Then, the user places their feet against the soft pads 132 of the foot rest 13 and secures their feet to the foot rest 13 with the foot straps 131. The bracket 1 can be connected to the external structure through the mounting holes 111 of the mounting ears 11 to ensure the overall installation stability of the device. The controller inside the bracket 1 establishes a signal connection with the limit switch 27 and the external display screen in advance to complete the signal link preparation before counting. The protective cover 2 protects the transmission structure such as the rocker arm 22 and the swing arm 23 to avoid external interference affecting the transmission accuracy.

[0031] During the motion drive process, the swing motor 21 provides continuous power. The output end of the swing motor 21 drives the synchronous shaft 211 to rotate, which in turn drives the rocker arm 22 to reciprocate within the protective cover 2 with its rotation center as the axis. When the rocker arm 22 swings, the slider 221 in its groove 222 swings in a circular motion. The slider rod 223 on the slider 221 is embedded in the strip groove 231 of the swing arm 23 and slides along the groove. With the sliding cooperation between the slider rod 223 and the strip groove 231, the circular swing of the rocker arm 22 is converted into the synchronous swing of the swing arm 23. The swing arm 23 is fixedly connected to the rotation center of the footrest 13. The swing of the swing arm 23 directly drives the footrest 13 to deflect, thereby guiding the user's ankle joint to complete the basic ankle pump movement of dorsiflexion and plantarflexion, realizing the mechanical guidance of the ankle pump movement and ensuring the standardization of the movement.

[0032] As the rocker arm 22 swings, the slide plate 24, which is fixedly connected to the slider 221, is moved synchronously. The end of the insert rod 251 on the slide plate 24 is embedded in the combination groove 26 on the side wall of the protective cover 2, so that the movement trajectory of the slide plate 24 is limited by the combination groove 26. The slide plate 24 and the rocker arm 22 are connected by a guide rod 241 and a tension spring 243. The guide rod 241 provides precise guidance for the sliding of the slide plate 24 to prevent the slide plate 24 from deviating. The tension spring 243 always applies a pulling force to the slide plate 24 toward the rotation center of the rocker arm 22. Under the action of this continuous pulling force, the slider 221 always tends to move toward the rotation center of the rocker arm 22.

[0033] Specifically, when the insert rod 251 on the slide plate 24 moves to the first-layer straight groove 261, under the continuous tension of the tension spring 243, the insert rod 251 slides along the reversing groove 262 to the next-layer straight groove 261. During this process, the insert rod 251 drives the slide plate 24 to slide along the rocker arm 22 towards its rotation center, thereby driving the slide rod 223 to move synchronously in the strip groove 231 of the swing arm 23, changing the position of the slide rod 223 on the swing arm 23, and ultimately slightly increasing the swing angle of the swing arm 23. As the rocker arm 22 continues to swing, the insert rod 251 continuously switches between the straight grooves 261 and the reversing grooves 262 of each layer of the combination groove 26, and the swing angle of the swing arm 23 gradually increases until the insert rod 251 slides to the end of the straight groove 261 near the rotation center of the rocker arm 22. At this point, the swing angle of the swing arm 23 meets the standard requirements of ankle pump exercise. The entire process of increasing the angle conforms to the patient's joint adaptation rhythm, improving the comfort and safety of rehabilitation exercises. The core design is adapted to the exercise tolerance needs of rehabilitation patients. Because patients' ankle joint mobility is weak in the early stages and they cannot withstand the standard range of deflection angle, the swing angle of the arm is gradually increased to allow patients to complete the exercise step by step, avoiding joint damage or physical discomfort caused by direct large-angle movement.

[0034] When the skateboard 24 slides along the trajectory of the combination groove 26 to the point near the arc groove 263, since the rotation center of the arc groove 263 is the same as the rotation center of the rocker arm 22, as the rocker arm 22 continues to swing, the skateboard 24 will slide in a certain angle along the arc groove 263, thereby driving the footrest 13 to make a stable deflection at a standard angle, allowing the user's ankle joint to complete the ankle pump exercise with the standard range, ensuring the rehabilitation exercise effect; during the process of the skateboard 24 sliding along the arc groove 263, it will directly contact the limit switch 27 on the side wall of the arc groove 263, and only when the limit switch 27 is triggered will the user's ankle joint complete the ankle pump exercise with the standard range, ensuring the rehabilitation exercise effect. Only when the patient has completed a standard range of ankle pump movements does the limit switch 27 generate an electrical signal, which is then transmitted in real time to the controller inside the support 1. The controller processes the trigger signal and transmits the counting information to the external display screen, thus completing the effective counting of one ankle pump movement. As the rocker arm 22 continues to swing back and forth, the slide plate 24 slides at a fixed angle within the arc groove 263, continuously triggering the limit switch 27 to achieve continuous and accurate counting of the number of standard ankle pump movements, ensuring the effectiveness and accuracy of the counting.

[0035] When the device needs to be reset to its initial state to accommodate the initial movement needs of new users or patients, the operator first removes the protective cover 2, separating the swing arm 23 from the slide rod 223. Then, the operator pulls the slide rod 223 away from the rotation center of the swing arm 22. The slide rod 223 drives the slider 221 to move upward within the slide groove 222, simultaneously moving the slide plate 24, positioning cover 25, and insertion rod 251 upward. During this upward movement, the inclined surface 252 at the end of the insertion rod 251 is pressed against the side wall of the reversing groove 262. The pressing force pushes the insertion rod 251 back into the positioning cover 25. The baffle 253 inside the positioning cover 25 moves along with the insertion rod 251. The compression spring 254 is compressed, causing it to deform elastically. The insertion rod 251 is temporarily separated from the combination groove 26. At this time, the operator continues to pull the slide rod 223 upward until the end of the insertion rod 251 moves to the position of the straight groove 261 of the first layer of the combination groove 26. At this time, the elastic restoring force of the compression spring 254 pushes the baffle 253 to extend the insertion rod 251 and re-insert it into the straight groove 261 of the first layer. The device is then reset to its initial position, and the tension spring 243 is in a stretched state, preparing for subsequent angle-increasing movements. Finally, the operator reinstalls the protective cover 2 to complete the entire reset operation, and the device can be put into use again.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ankle pump motion counter, comprising a support (1), wherein a footrest (13) is rotatably mounted on the support (1), characterized in that: A protective cover (2) is installed on the outer wall of the bracket (1). A rocker arm (22) is rotatably installed on the protective cover (2). A slider (221) is slidably installed on the rocker arm (22). A swing arm (23) is installed at the rotation center of the footrest (13). The slider (221) is slidably connected to the swing arm (23). By driving the rocker arm (22) to swing, the swing arm (23) is driven to swing synchronously, so that the footrest (13) deflects and completes the ankle pump exercise. A sliding plate (24) is installed on the slider (221), and a tension spring (243) is installed between the sliding plate (24) and the rocker arm (22). The tension spring (243) is used to pull the slider (221) to move towards the rotation center. The sliding plate (24) is slidably connected to the combination groove (26) opened on the side wall of the protective cover (2). The combined groove (26) includes several pairs of straight grooves (261), and a reversing groove (262) is connected between adjacent straight grooves (261). A circular arc groove (263) is connected to the end of the straight groove (261) near the center of rotation, and a limit switch (27) is provided on the side wall of the circular arc groove (263). When the rocker arm (22) swings, it pulls the slide plate (24) to slide along different straight grooves (261), and the tension spring (243) causes the slider (221) to move down, thereby driving the swing arm (23) to gradually increase the deflection angle. When it slides to the circular arc groove (263), it deflects at a fixed angle, and after contacting the limit switch (27), it completes one ankle pump movement count.

2. The ankle pump motion counter according to claim 1, characterized in that, The bracket (1) is L-shaped and is integrally cast. Several pairs of mounting ears (11) are installed on the side wall of the bracket (1). The mounting ears (11) have mounting holes (111) inside. The mounting holes (111) facilitate connection with external structures. A controller is installed inside the bracket (1). The controller is used to receive the limit switch (27) signal and transmit the signal processing to the external connected display screen to achieve the counting purpose.

3. The ankle pump motion counter according to claim 1, characterized in that, The support (1) is equipped with a leg rest (12), which is connected to the support (1) by bolts. The foot rest (13) is equipped with a pair of soft pads (132), which correspond to the user's ankle joint. The leg rest (12) is equipped with a leg strap (121). The foot rest (13) is rotatably equipped with a side rocker plate (135), and a torsion spring (136) is installed between the rotation center of the side rocker plate (135) and the leg rest (13). The side rocker plate (135) is used to drive the foot to swing left and right. The side rocker plate (135) is equipped with a foot strap (131). The leg strap (121) is used to wrap around the user's leg, and the foot strap (131) is used to wrap around the user's foot.

4. An ankle pump motion counter according to claim 1, characterized in that, A support frame (133) is installed on the bracket (1), and a positioning shaft (134) is installed through the support frame (133). One end of the positioning shaft (134) is connected to the rotation center of the footrest (13), and the other end of the positioning shaft (134) is connected to the rotation center of the rocker arm (22).

5. An ankle pump motion counter according to claim 1, characterized in that, The protective cover (2) covers the outer wall of the rocker arm (22) and the swing arm (23). A swing motor (21) is installed on the side wall of the protective cover (2). A synchronous shaft (211) is installed at the output end of the swing motor (21). The synchronous shaft (211) is movably connected to the outer wall of the protective cover (2). The end of the output end of the synchronous shaft (211) is connected to the rotation center of the rocker arm (22). The swing motor (21) is used to drive the rocker arm (22) to swing back and forth.

6. An ankle pump motion counter according to claim 1, characterized in that, The rocker arm (22) has a sliding groove (222) which is vertical and a slider (221) is slidably installed on the sliding groove (222). A slider (223) is installed on the slider (221). The swing arm (23) has a strip groove (231) which is slidably installed on the strip groove (231). The width of the strip groove (231) is compatible with the diameter of the slider (223). The rotation center of the rocker arm (22) and the rotation center of the swing arm (23) are not on the same vertical line.

7. An ankle pump motion counter according to claim 1, characterized in that, The slide (24) is fitted with a guide rod (241) through it. Guide seats (242) are installed at both ends of the guide rod (241). The bottom of the guide seat (242) is welded to the side wall of the rocker arm (22). A tension spring (243) is sleeved on the outer side wall of the guide rod (241). One end of the tension spring (243) is installed on the side wall of the guide seat (242), and the other end of the tension spring (243) is installed on the side wall of the slide (24).

8. An ankle pump motion counter according to claim 1, characterized in that, The side wall of the slide plate (24) is equipped with a positioning cover (25). The positioning cover (25) is movably inserted into the rod (251). The end of the rod (251) is slidably disposed on the combination groove (26). The upper surface of the end of the rod (251) is provided with an inclined surface (252). When the slide plate (24) moves up and resets, the inclined surface (252) is pressed against the side wall of the combination groove (26), and the rod (251) is pressed back, so that the rod (251) is separated from the combination groove (26).

9. An ankle pump motion counter according to claim 8, characterized in that, The positioning cover (25) is equipped with a baffle (253). One end of the baffle (253) is connected to the end of the insertion rod (251). The other end of the baffle (253) is provided with a compression spring (254), and the other end of the compression spring (254) is engaged with the side wall of the positioning cover (25). The compression direction of the compression spring (254) and the moving direction of the insertion rod (251) are on the same straight line.

10. An ankle pump motion counter according to claim 1, characterized in that, The length of the straight groove (261) near the rotation center of the rocker arm (22) is shorter than the length of the straight groove (261) near the outer side, and several pairs of straight grooves (261) and reversing grooves (262) are distributed in an S-shape, and the rotation center of the arc groove (263) is the same as the rotation center of the rocker arm (22).

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