Leg exercise device for lower extremity obstructive arteriosclerosis

Abstract

To provide a leg exercise device for lower extremity obstructive arteriosclerosis. [Solution] The leg exercise device comprises a support frame 1, a training mechanism 2 provided on the upper part of the support frame, a fixed housing 21 provided on the training mechanism, the bottom of the fixed housing fixedly connected to the support frame, and movable members 22 provided on both sides, with an adjustment member 23 provided on the upper part. By providing the training mechanism, the movement resistance of conventional leg exercise devices is almost fixed and cannot be adjusted, which solves the problem of difficulty in meeting the needs of stepwise rehabilitation tailored to each patient according to the severity of the patient's condition, the stage of rehabilitation, and the muscle strength of the legs, and provides an effect of being able to adjust the rotational resistance.

Description

[Technical Field]

[0001] The present utility model relates to the technical field of lower limb rehabilitation medical equipment, and in particular, to a leg exercise device for lower limb arteriosclerosis obliterans. [Background Art]

[0002] Patients with lower limb arteriosclerosis obliterans often need to use a leg exercise device to perform passive and active leg flexion and extension training, so as to promote lower limb blood circulation, improve blood flow to the affected limb, delay disease progression, and support rehabilitation. The adjustability of the training resistance of the device directly affects the appropriateness and safety of rehabilitation training.

[0003] The problems in the existing technology are as follows: Most of the exercise resistance of conventional leg exercise devices is fixed and has an unadjustable structure. The rotational resistance cannot be flexibly adjusted according to the severity of the patient's condition, the stage of rehabilitation, and the muscle strength of the legs. If the resistance is too high, it is easy to cause strain on the patient's leg muscles and increase discomfort in the limbs; if the resistance is too low, sufficient training effect cannot be achieved, making it difficult to meet the needs of gradual rehabilitation tailored to each individual patient. [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] In order to solve the problems described in the above background art, an object of the present utility model is to provide a leg exercise device for lower limb arteriosclerosis obliterans, which has the advantage of being able to adjust rotational resistance and solves the following problems of conventional leg exercise devices: Most conventional leg exercise devices have fixed and unadjustable exercise resistance, so that the rotational resistance cannot be flexibly adjusted. If the resistance is too high, it is easy to cause strain on the patient's leg muscles and increase discomfort in the limbs; if the resistance is too low, sufficient training effect cannot be achieved, making it difficult to meet the needs of gradual rehabilitation tailored to each individual patient.

[0005] To achieve the above objective, this utility model provides the following technical solution: The leg exercise device for lower limb obstructive arteriosclerosis according to this utility model comprises a support frame, and a training mechanism is provided on the upper part of the support frame. The training mechanism comprises a fixed housing, the bottom of which is fixedly connected to a support frame, movable members provided on both sides thereof, and an adjustment member provided on the top; The support frame is characterized in that adjustment rods are slidably connected to internal cavities on both sides of the bottom of the support frame, fixing members are provided on the front and rear sides thereof, a plurality of ratchet grooves are formed on the surface of the adjustment rods for use in engaging with the fixing members, and the ratchet grooves are uniformly distributed in a linear array.

[0006] In a preferred embodiment of this utility model, the movable member comprises a rotating rod, one end of which penetrates a fixed housing and extends into the internal cavity of the fixed housing, the other end of which is rotatably connected to a pedal, and a strap is fixedly connected to the upper part of the pedal.

[0007] Furthermore, in a preferred form for implementing this utility model, a first magnet is provided in the internal cavity of the fixed housing, both ends of the first magnet are fixedly connected to a rotating rod, and its outer surface is in contact with the inner wall of the fixed housing.

[0008] Furthermore, in a preferred form for implementing this utility model, the adjustment member comprises a limit housing, the bottom of which is fixedly connected to a fixed housing, and a second magnet is slidably connected to an internal cavity.

[0009] Furthermore, in a preferred form for implementing this utility model, a threaded rod is rotatably connected to the upper part of the second magnet, the upper part of the threaded rod penetrates the limit housing and extends to the outside of the limit housing, and a control block is fixedly connected to it.

[0010] Furthermore, in a preferred form for implementing this utility model, the threaded rod is screw-engaged with the limit housing at a point where it penetrates, and a nut is fitted to its surface, and the nut is screw-engaged with the limit housing, with the bottom of the nut in contact with the limit housing. [Effects of the Invention]

[0011] Compared to existing technologies, the beneficial effects of this utility model are as follows: 1. This utility model solves the problem that conventional leg exercise devices have a fixed, non-adjustable resistance, making it difficult to flexibly adjust the rotational resistance according to the severity of the patient's condition, the stage of rehabilitation, and the strength of their leg muscles. If the resistance is too high, it can easily cause muscle strains in the patient's legs and increase discomfort in the limbs, but if the resistance is too low, sufficient training effects cannot be achieved, making it difficult to meet the needs of stepwise rehabilitation tailored to each individual patient. This utility model solves this problem by providing an adjustable effect on rotational resistance. 2. Furthermore, this utility model provides a movable member, and the training execution mechanism consists of a rotating rod, pedal, strap, and first magnet. By combining the pedal and strap, the patient's legs can be firmly fixed, allowing the patient to rotate the rotating rod spontaneously and easily complete leg flexion and extension rehabilitation training. The first magnet rotates in sync with the rotating rod and provides a base for adjusting resistance. The structure is simple, easy to wear, and suitable for the training posture and range of motion of patients with lower limb obstructive arteriosclerosis. 3. Furthermore, this utility model utilizes a combination of a limit housing, a second magnet, a threaded rod, a control block, and a nut, with an adjustment mechanism that drives the raising and lowering of the second magnet by the threaded rod. This changes the distance between the second and first magnets, adjusts the magnitude of the magnetic repulsion force, and precisely controls the rotational resistance, allowing it to meet the training intensity needs of patients with different medical conditions and rehabilitation stages. After adjustment, locking the position of the threaded rod with the nut avoids unexpected fluctuations in resistance, making it easy to operate, allowing for precise adjustment, and meeting the requirements of individualized and stepwise rehabilitation training. 4. Furthermore, this utility model creates a height-adjustable structure for the device by setting a combination of a fixing member, an adjustment rod, and a ratchet groove. The locking block engages with the ratchet groove and locks in place by the action of a torsion spring, and the toggle block allows for quick release of the lock and height adjustment, accommodating patients of different heights and sitting positions, providing stable and reliable support, and further improving the adaptability and practicality of the device. [Brief explanation of the drawing]

[0012] [Figure 1] This is a diagram showing the overall structure of this utility model. [Figure 2] This is an enlarged view of section B in Figure 1. [Figure 3] This is a diagram showing the structure of the movable member. [Figure 4] This is a diagram showing the structure of the adjustment component. [Modes for carrying out the invention]

[0013] To make the above-mentioned objectives, features, and advantages of this utility model clearer and easier to understand, specific embodiments of this utility model will be described in detail below with reference to the drawings attached to the specification.

[0014] The following description will elaborate on many specific details to facilitate a thorough understanding of this utility model. However, this utility model can also be implemented in ways different from those described herein, and similar extensions can be made by those skilled in the art without compromising the scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] Next, the terms "one embodiment" and "embodiment" used herein refer to specific features, structures, or characteristics that may be included in at least one embodiment of this utility model. The phrase "in one embodiment" used throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a single or alternative embodiment that is mutually exclusive with the other embodiments.

[0016] Furthermore, while this utility model provides detailed explanations with reference to diagrams, when detailing embodiments of this utility model, for the sake of convenience of explanation, cross-sectional diagrams showing the device structure will follow a general scale and will not be partially enlarged. Moreover, the aforementioned diagrams are merely illustrative and should not limit the scope of protection of this utility model. In addition, the actual manufacturing process will include three-dimensional spatial dimensions such as length, width, and depth. [Examples]

[0017] The first embodiment of this utility model will be described with reference to Figures 1-4. The embodiment provides a leg exercise device for lower limb obstructive arteriosclerosis, comprising a support frame 1 and a training mechanism 2 provided on the upper part of the support frame 1. The training mechanism 2 includes a fixed housing 21, the bottom of which is fixedly connected to the support frame 1, and movable members 22 are provided on both sides thereof, with an adjustment member 23 provided on the top.

[0018] Further, adjusting rods 24 are each slidably connected to internal cavities provided on both sides of the bottom portion of said support frame, fixing members 25 are provided on the front side and rear side of the support frame, a plurality of ratchet grooves 26 for use in engagement with said fixing members 25 are formed on the surface of said adjusting rods 24, and said ratchet grooves 26 are uniformly distributed in a linear array.

[0019] Specifically, by providing the training mechanism 2, the present invention solves the problem existing in conventional leg exercise devices that the exercise resistance is almost fixed and structurally unadjustable, which makes it impossible to flexibly adjust the rotational resistance according to the severity of a patient's condition, rehabilitation stage and leg muscle strength status. If the resistance is too high, it is likely to cause muscle strain in the patient's leg and increase discomfort in the limbs, while if the resistance is too low, sufficient training effects cannot be achieved, making it difficult to meet the needs of gradual rehabilitation tailored to each individual patient, thereby achieving the effect of adjusting the rotational resistance.

[0020] Furthermore, the training mechanism 2 uses a fixed housing 21 as a mounting carrier, provides a leg flexion and extension training execution mechanism for a patient through a movable member 22, and realizes magnetic resistance adjustment in combination with an adjusting member 23. It has no mechanical friction loss, operates smoothly and quietly, and is suitable for the rehabilitation training use scenario of patients with lower extremity arteriosclerosis obliterans.

Examples

[0021] In the second embodiment of the present utility model, the movable member 22 comprises a rotating rod 221, one end of the rotating rod 221 penetrates the fixed housing 21 and extends into the internal cavity of the fixed housing 21, a pedal 222 is rotatably connected to the other end, and a strap 223 is fixedly connected to the upper part of the pedal 222.

[0022] Further, a first magnet 3 is provided in the internal cavity of the fixed housing 21, both ends of the first magnet 3 are respectively fixedly connected to the rotating rod 221, and the outer surface of the first magnet 3 is in contact with the inner wall of the fixed housing 21.

[0023] More specifically, a movable member 22 is provided, and the training execution mechanism consists of a rotating rod 221, a pedal 222, a strap 223, and a first magnet 3. By combining the pedal 222 and the strap 223, the patient's legs can be firmly fixed, allowing the patient to spontaneously rotate the rotating rod 221 and easily complete leg flexion and extension rehabilitation training. The first magnet 3 rotates in sync with the rotating rod 221 and provides a base for adjusting resistance. The structure is simple, easy to wear, and suitable for the training posture and range of motion of patients with lower limb obstructive arteriosclerosis.

[0024] Furthermore, when the patient places their legs on the surface of the pedal 222 and secures them with the strap 223, the rotation rod 221 can be pulled to rotate around the fixed housing 21 when force is applied due to the flexion and extension of the thigh. The rotation rod 221 synchronously drives the first magnet 3 to rotate within the fixed housing 21, and the pedal 222 and the rotation rod 221 are rotatably connected, which can adapt to the natural range of motion of the patient's legs and effectively improve comfort during the training process. [Examples]

[0025] In the third embodiment of this utility model, the adjustment member 23 includes a limit housing 231, the bottom of which is fixedly connected to the fixed housing 21, and a second magnet 232 is slidably connected to the internal cavity.

[0026] Furthermore, a threaded rod 4 is rotatably connected to the upper part of the second magnet 232, and the upper part of the threaded rod 4 penetrates the limit housing 231 and extends to the outside of the limit housing 231, to which the control block 5 is fixedly connected.

[0027] Furthermore, the threaded rod 4 is screw-engaged with the limit housing 231 at the point where it penetrates, and a nut 6 is fitted onto its surface, and the nut 6 is screw-engaged with the limit housing 231, with the bottom of the nut 6 in contact with the limit housing 231.

[0028] In detail, by providing the adjustment member 23, the combination of the limit housing 231, the second magnet 232, the threaded rod 4, the control block 5, and the nut 6 can be used to drive the raising and lowering of the second magnet 232 by the threaded rod 4, changing the distance between the second magnet 232 and the first magnet 3, and further adjusting the magnitude of the magnetic repulsion force, thereby precisely controlling the rotational resistance and meeting the training intensity needs of patients with different medical conditions and rehabilitation stages. After adjustment, the position of the threaded rod 4 is locked with the nut 6, which prevents unexpected fluctuations in resistance, makes it easy to operate, allows for precise adjustment, and can meet the requirements of individualized and stepwise rehabilitation training.

[0029] Furthermore, the control block 5 is rotated, driving the rotation of the threaded rod 4, which engages with the threads of the limit housing 231 to achieve vertical movement. Additionally, the second magnet 232 is driven to slide up and down along the inner wall of the limit housing 231, changing the distance between it and the first magnet 3. A smaller distance increases the magnetic repulsion and thus the rotational resistance, while a larger distance weakens the magnetic repulsion and thus the rotational resistance. After adjustment is complete, tightening the nut 6 locks the position of the threaded rod 4. Example 4

[0030] In the fourth embodiment of this utility model, the fixing member 25 comprises two support blocks 251, with a support column 252 fixedly connected to opposing sides of the support blocks 251, a locking block 253 fitted to the middle of the surface, and a toggle block 254 fixedly connected to the top of the locking block 254, with the bottom of the locking block 253 engaging with a locking groove, and torsion springs 255 fixedly connected to both sides, the torsion springs 255 fitted to the surface of the support column 252, and the side away from the locking block 253 fixedly connected to the support block 251.

[0031] More specifically, the combination of the fixing member 25, the adjustment rod 24, and the ratchet groove 26 forms a structure that allows for height adjustment of the device. The locking block 253 engages with the ratchet groove 26 and locks in place due to the action of the torsion spring 255, and the toggle block 254 allows for quick release of the lock and height adjustment, accommodating patients of different heights and sitting positions, providing stable and reliable support, and further improving the adaptability and practicality of the device.

[0032] Furthermore, by manually operating the toggle block 254, the locking block 253 can be pulled to rotate around the support column 252, applying force to the torsion spring 255, twisting and accumulating force, causing the bottom of the locking block 253 to disengage from the ratchet groove 26 on the surface of the adjustment rod 24. At this time, the adjustment rod 24 slides up and down, allowing the overall height of the support frame and training mechanism to be adjusted. After the height adjustment is complete, releasing the toggle block 254 restores the torsion spring 255, pulling the rotation of the locking block 253, causing the locking block 253 to re-engage with the ratchet groove 26 in the corresponding position, locking and completing the height fixation, resulting in quick operation, stable support, and no loosening.

[0033] Specific examples: When using the leg exercise device for lower extremity obstructive arteriosclerosis, the following usage procedure is included: 1.Initial preparation Before use, first adjust the height of the device according to the patient's height and sitting position. Manually operate the toggle block 254 of the fixing member 25 to rotate the locking block 253, disengaging it from the ratchet groove 26. Slide the adjustment rod 24 up and down to the appropriate height. When the toggle block 254 is released, the torsion spring 255 pulls the locking block 253 back into place, engaging with the ratchet groove 26 and completing the height lock. 2. Adjusting the resistance Furthermore, depending on the patient's medical condition and rehabilitation stage, the training resistance is adjusted, the nut 6 on the screw rod 4 is loosened, the control block 5 is rotated, the rotation of the screw rod 4 is pulled, the second magnet 232 slides up and down along the limit housing 231, the distance between the second magnet 232 and the first magnet 3 inside the fixed housing 21 is adjusted, and the magnitude of the magnetic repulsion force between them is changed to precisely control the rotational resistance. After adjusting to an appropriate strength, the nut 6 is tightened to lock the position of the screw rod 4 and prevent the resistance from shifting during training. 3. Lower Limb Training During training, the patient places both feet on the pedals 222 on both sides, secures their legs with the straps 223, and voluntarily performs flexion and extension movements of their legs, thereby pulling the rotation of the pedals 222 and the rotating rod 221. The rotating rod 221 drives the rotation of the first magnet 3 within the fixed housing 21, and the patient overcomes the magnetic repulsion between the first magnet 3 and the second magnet 232 to complete the training. This promotes blood circulation in the lower limbs, improves blood supply to the limbs, and achieves the effects of rehabilitation training.

[0034] In short, by incorporating training mechanism 2, an adjustable effect on rotational resistance can be achieved.

[0035] In the technical means of this application, the magnets employed can be equipped with additional protective measures that are well known and common in the art, depending on the different operating environment, and may include, but are not limited to, the following methods, for example, protective covers for protecting the equipment, dustproof nets for dustproofing the equipment, and seals or waterproof coatings for waterproofing the equipment, which are technical means commonly used by those skilled in the art.

[0036] Furthermore, what needs to be explained are devices and equipment in which magnets exist as existing technology, or devices and equipment that can be realized using existing technology. The methods of power supply, connection methods, usage, power source, fixing method, mounting method, control method, and the selection of materials and various parameters for each component are all common knowledge among engineers in this field, and therefore will not be described in further detail in this application document.

[0037] Furthermore, it should be noted that, importantly, the structures and arrangements shown in the multiple different exemplary embodiments of this application are merely illustrative. While this disclosure describes only a few embodiments in detail, those referring to this disclosure should readily understand that many variations are possible, provided that they do not substantially deviate from the novel teachings and merits of the subject matter described herein (e.g., changes in the size, scale, structure, shape and proportions of various parts, and parameter values ​​(e.g., temperature, pressure, etc.), mounting and arrangement, use of materials, color, orientation, etc.). For example, a part shown as integrally molded may consist of multiple parts or components. The position of parts can be reversed or otherwise altered, and the properties, number, and position of individual parts can be changed or altered. Therefore, all these variations are within the scope of protection of this utility model. Based on alternative embodiments, any sequence or order of any process or method procedure can be changed or rearranged. In the claims, any “apparatus + function” clause is intended to cover structures that perform the function described herein, and includes not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made to the design, operating state, and arrangement of the exemplary embodiments, provided that they do not deviate from the scope of protection of this utility model. Therefore, this utility model is not limited to any particular embodiment and extends to a variety of variations that fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., features unrelated to the currently envisioned preferred mode of implementing this utility model, or features unrelated to the realization of this utility model) may be described.

[0039] It should be understood that in the process of developing any actual embodiment, for example, in any construction or design project, numerous decisions regarding specific embodiments can be made. While such development efforts may be complex and time-consuming, for the average engineer benefiting from this disclosure, such efforts will not require excessive experimentation and will be considered normal work in design, manufacturing, and production.

[0040] Furthermore, the embodiments described above are intended to illustrate the technical solutions of this utility model and should be understood as not limiting. Although this utility model has been described in detail with reference to preferred embodiments, a person of general skill in the art will understand that modifications and equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions are included within the scope of the claims of this utility model. [Explanation of Symbols]

[0041] 1. Support frame 2-Training Mechanism 3- The first magnet 4-Threaded Rod 5-Control Block 6-nut 21-Fixed enclosure 22-Movable Member 23-Adjustment Member 24-Adjustment Rod 25 - Fixing Member 26-Ratchet grooves 221-Rotating Rod 222-Pedal 223-Strap 231-Limit Casing 232 - The Second Magnet 251 - Support Block 252-Support column 253- Locking Block 254-Toggle Block 255 - Torsion spring

Claims

1. A support frame (1) is provided, and a training mechanism (2) is provided on the upper part of the support frame (1). The training mechanism (2) comprises a fixed housing (21), the bottom of which is fixedly connected to the support frame (1), and movable members (22) are provided on both sides thereof, with an adjustment member (23) provided on the top; Adjustment rods (24) are slidably connected to internal cavities on both sides of the bottom of the support frame (1), and fixing members (25) are provided on the front and rear sides thereof. Multiple ratchet grooves (26) are formed on the surface of the adjustment rods (24) for use in engaging with the fixing members (25), and the ratchet grooves (26) are uniformly distributed in a linear array. A leg exercise device for lower extremity obstructive arteriosclerosis, characterized by the following features.

2. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 1, characterized in that the movable member (22) is equipped with a rotating rod (221), one end of the rotating rod (221) penetrates the fixed housing (21) and extends into the internal cavity of the fixed housing (21), a pedal (222) is rotatably connected to the other end, and a strap (223) is fixedly connected to the upper part of the pedal (222).

3. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 2, characterized in that a first magnet (3) is provided in the internal cavity of the fixed housing (21), both ends of the first magnet (3) are fixedly connected to a rotating rod (221), and the outer surface is in contact with the inner wall of the fixed housing (21).

4. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 1, characterized in that the adjusting member (23) comprises a limit housing (231), the bottom of the limit housing (231) is fixedly in communication with the fixed housing (21), and a second magnet (232) is slidably connected to the internal cavity.

5. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 4, characterized in that a threaded rod (4) is rotatably connected to the upper part of the second magnet (232), the upper part of the threaded rod (4) penetrates the limit housing (231) and extends to the outside of the limit housing (231), and a control block (5) is fixedly connected to it.

6. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 5, characterized in that the threaded rod (4) is screw-engaged with a through-hole in the limit housing (231), a nut (6) is fitted onto its surface, the nut (6) is screw-engaged with the threaded rod (4), and the bottom of the nut (6) is in contact with the limit housing (231).

7. The leg exercise device for lower limb obstructive arteriosclerosis according to claim 5, characterized in that the fixing member (25) comprises two support blocks (251), a support column (252) fixedly connected to opposing sides of the support blocks (251), a locking block (253) fitted to the middle portion of the surface, rotatably connected to the locking block (253), the bottom of the locking block (253) engaging with a locking groove, a toggle block (254) fixedly connected to the upper part, torsion springs (255) fixedly connected to both sides, the torsion springs (255) fitted to the surface of the support column (252), and the side away from the locking block (253) fixedly connected to the support block (251).

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