GB2609751A

GB2609751A - Multifunctional lower-limb exercise instrument

Info

Publication number: GB2609751A
Application number: GB2209865.1A
Authority: GB
Inventors: Ji Hong; Wu Yan; Yang Yanwei; Jin Ming; Chen Yuzhuo
Original assignee: First Affiliated Hospital of Shandong First Medical University
Current assignee: First Affiliated Hospital of Shandong First Medical University
Priority date: 2021-08-03
Filing date: 2022-07-05
Publication date: 2023-02-15
Anticipated expiration: 2042-07-05
Also published as: GB202209865D0; GB2609751B; CN113577664A

Abstract

A lower-limb exercise instrument includes two rails 2 symmetrically positioned on a bottom plate 1, and two foot pedals 3-1, 3-2, one slidably arranged on each rail 2. A transmission mechanism arranged on the bottom plate, connects the foot pedals 3-1, 3-2. The transmission mechanism may include gears 4 connected by a transmission belt or chain 5. A sheath 6 may be arranged on an outer site of the chain 5 and may connect the chain 5 to the pedals 3-1, 3-2. The sheath 6 may include several U-shaped parts, each embedded into a section of the chain 7. The rails 2 may be straight and may have elastic stop blocks at either end. The device allows synchronised training of the knees, to improve knee strength and joint activity of a patient during knee rehabilitation.

Description

MULTIFUNCTIONAL LOWER-LIMB EXERCISE INSTRUMENT

TECHNICAL FIELD

100011 The present disclosure belongs to the field of medical instruments, and particularly relates to a multifunctional lower-limb exercise instrument.

BACKGROUND ART

100021 The information disclosed in the background art is only for enhancement of understanding of the general background of the present disclosure, and is not regarded as admitting or suggesting in any form that the information forms the prior art that is already known to those skilled in the art.

100031 Knee joints have the main functions of bearing load, transmitting load and participating in exercise to provide couple for shank movement, and can also perform slight grinding and rotating when the knees are bent. Knee joints are the biggest hinge joints of the whole body and mainly used for flexion and extension. However, due to the fact that the knee joints are located at the middle parts of the lower-limbs and located between the two biggest lever arms of the body for bearing larger force, which likely causes sprains and fractures. Especially in athletic activities, injuries to the ligaments and meniscus are the most common.

100041 For a patient with knee joint injuries, there needs auxiliary rehabilitation training besides medicine and operative treatment, so as to help knee joint function recovery of the patient. Currently, knee joint rehabilitation-training equipment is mainly used for training a single joint clinically. For a patient with serious knee joint injuries, after the knee joints drive the shanks to swing forwards during rehabilitation training, the difficulty is large when the knee joints drive the shanks to be retracted towards the inner side of the body, due to the defects of muscle strength and knee joint activity. Thus, synchronous rehabilitation training of the two knees of the patient is difficult to achieve autonomously.

SUMMARY

100051 In order to overcome the problems, the present disclosure provides a multifunctional lower-limb exercise instrument Through cooperation of a transmission device, pedals and sliding rails, synchronous and linkage training of knees is achieved. Further, the exercise effect of lower-limb muscle strength and knee joint activity of a patient is effectively enhanced 100061 To achieve the above technical objective, the present disclosure adopts the following technical scheme.

100071 A first aspect of the present disclosure provides a multifunctional lower-limb exercise instrument, which includes a bottom plate, two sliding rails, a first pedal, a second pedal and a transmission mechanism; the two sliding rails are symmetrically arranged on the bottom plate; the first pedal and the second pedal are slidably arranged on the two sliding rails respectively; and the transmission mechanism is further arranged on the bottom plate, and the first pedal and the second pedal are connected through the transmission mechanism.

100081 A second aspect of the present disclosure provides a fitness instrument, includes the multifunctional lower-limb exercise instrument.

100091 A third aspect of the present disclosure provides application of the multifunctional lower-limb exercise instrument in fields of medical treatment and sports.

100101 The present disclosure has the following beneficial effects.

100111 Firstly, embodiments provide a multifunctional lower-limb exercise instrument. Through cooperation of the transmission device, the pedals and the sliding rails, synchronous and linkage training of knees is achieved. Further, the exercise effect of lower-limb muscle strength and knee joint activity of the patient is effectively enhanced.

100121 Secondly, gears are designed in embodiments, and the pedal resistance can be adjusted through the gears, so that the force exerted by the plantar and the contraction force of lower-limb muscles during exercise are increased. In this way, the blood backflow is promoted, and the formation of lower-limb deep vein thrombosis is prevented.

100131 Thirdly, the device in embodiments is simple in structure, convenient to use, high in practicability and easy for large-scale production.

BRIEF DESCRIPTION OF THE DRAWINGS

100141 Attached figures of the description which form a part of the present disclosure are used for providing further understanding of the present disclosure, and the illustrative embodiments and description thereof in the present disclosure are used for explaining the present disclosure and are not to be construed as an undue limitation of the present disclosure.

100151 FIG 1 is a structural diagram of a device according to an embodiment of the present disclosure; 100161 FIG. 2 is a partial enlarged view of a transmission mechanism according to an embodiment of the present disclosure; and 100171 FIG 3 is a partial enlarged view of a connection of a transmission mechanism and pedals according to an embodiment of the present disclosure.

100181 Reference signs: 1, bottom plate; 2, sliding rail; 3, pedal; 4, gear; 5 chain; 6, sheath; 7, stop block; 3-1, first pedal; and 3-2, second pedal.

DETAILED DESCRIPTION OF THE EMBODIMENTS

100191 It should be noted that the following detailed description is exemplary and aims to provide further description for the present disclosure. Except as otherwise noted, all techniques and scientific terms used in the present disclosure have same meanings generally understood by ordinary skill in the art in the present disclosure.

100201 It needs to be noted that the terms used herein just describe the specific embodiments, but not intend to limit the exemplary embodiments according to the present disclosure. As used herein, the singular forms are also intended to include plural referents unless the context clearly dictates otherwise. Moreover, it is further understood that when the terms "contain" and/or "comprise" are used in the specification, they indicate the presence of characteristics, steps, operations, devices, assemblies and/or combinations thereof 10021] For the convenience of description, the words "upper", "lower", "left" and "right", if appearing in the present disclosure, are only meant to be consistent with the upper, lower, left and right directions in the attached figures, and do not limit the structure, just for facilitating the description of the present disclosure and simplifying the description, but not for indicating or hinting that the indicated equipment or element must be in a specific direction and is constructed and operated in the specific direction, so that the terms cannot be understood as the restriction of the present disclosure.

100221 Explanation part of terms: the terms "mount", "link", "connect", "fix" arid the like in the present disclosure should be understood broadly, for example, which can be a fixed connection, and also can be a detachable connection or integrated; which can be a mechanical connection, and also can be an electrical connection; which can be a direct connection, also can be an indirect connection through an intermediary; which can be an internal connection or an interaction relationship of two components, the specific meaning of the above terms in the present disclosure will be understood by those skilled in the art as appropriate.

100231 As described in the background art, for a patient with serious knee joint injuries, after the knee joints drive the shanks to swing forwards during rehabilitation training" the difficulty is large when the knee joints drive the shanks to be retracted towards the inner side of the body, due to the defects of muscle strength and knee joint activity, which is difficult to achieve autonomously. Therefore, the present disclosure provides a multifunctional lower-limb exercise instrument, including a bottom plate, two sliding rails, a first pedal, a second pedal and a transmission mechanism. The two sliding rails are symmetrically arranged on the bottom plate. The first pedal and the second pedal are slidably arranged on the two sliding rails respectively. The transmission mechanism is further arranged on the bottom plate. The first pedal and the second pedal are connected through the transmission mechanism.

100241 Through a linkage of the transmission device, the first pedal and the second pedal, the patient can drive the other leg to be retracted towards the inner side of the body by forward thrust of one leg, so that cooperative training of the two knees is achieved, thereby effectively improving the training efficiency. Also, the lower-limb muscle is effectively exercised, and the knee joint activity is effectively enhanced.

100251 For the linkage of the first pedal and the second pedal, a belt type transmission mode is adopted in the present disclosure. Therefore, in some embodiments, the transmission mechanism includes a first transmission shaft, a second transmission shaft and a transmission belt. The transmission belt is sleeved on the first transmission shaft and the second transmission shaft and further connected with the first pedal and the second pedal respectively. Compared with linkage of the pedal performed by rotatable telescopic rods, the belt type transmission can enable the user to autonomously select the knee activity amplitude according to own conditions, without being affected by redundant external force. And, the user can imitate daily walking habits and drive the shanks to swing back and forth on straight line sections through the knee joints.

100261 In some embodiments, the transmission mechanism further includes at least one gear set. The at least one gear set includes a first gear and a second gear. The first transmission shaft and the second transmission shaft are provided with the first gear and the second gear respectively, and the first gear and the second gear are meshed with the transmission belt respectively. Compared with a transmission shaft, a larger transmission ratio can be obtained by adopting gear connection, so that the operation of the transmission mechanism is more stable and smooth.

100271 In some embodiments, the transmission mechanism is provided with multiple gear sets. The gear sets are arranged in parallel, and the axes of corresponding gears in the gear sets are located on the same vertical line.

100281 In some embodiments, each of the first pedal and the second pedal includes a pedal structural piece and a connecting piece. The pedal structural piece is fixedly connected with the connecting piece, the connecting piece is fixedly connected with the transmission mechanism, and the connecting pieces are slidably connected with the two sliding rails. In this way, the linkage of the pedals, the two sliding rails and the transmission mechanism is achieved.

100291 In some embodiments, the transmission belt is a chain, and a sheath is arranged on an outer side of the chain. The first pedal and the second pedal are fixedly connected with the sheath through respective connecting pieces, and each connecting piece is connected with a part of the sheath which is on a connecting shaft of the chain. The low-speed and heavy-load operating conditions of knee joint training can be better adapted by adopting chain transmission, so that the linkage between the two pedals is more smooth. Moreover, the transmission requirements of pedals with different intervals can be met by adjusting the length of the chain.

100301 In some embodiments, the sheath is composed of multiple independent U-shaped structural parts, and each of the U-shaped structural parts is embedded into a corresponding one of sections of the chain.

100311 In some embodiments, the connecting piece is block-shaped. The upper end of the connecting piece is fixedly connected with the transmission mechanism and the pedal structural piece, and the lower end of the connecting piece is slidably connected with the sliding rail. In some embodiments, each of the two sliding rails includes a straight line section, and the first pedal and the second pedal are arranged on the straight line section. The main training of the knee joints is to simulate the swing of the knee joints when a person walks. The first pedal and the second pedal can move back and forth by a specific straight line distance through the straight line section design, so that the knee joints are effectively trained.

100321 In order to avoid that the pedals are separated from the sliding rails to affect training or cause injure during training, in some embodiments, elastic stop blocks are arranged at two ends of the straight line section respectively, so as to limit the first pedal and the second pedal to locate in a specific straight line distance for training.

100331 In some embodiments, a display device is further arranged on the bottom plate, a sensor is arranged on the transmission mechanism, and the sensor is connected with the display device, so that the patients can better observe their own training frequency, select proper training intensity and plan a training plan.

100341 The present disclosure is described in further detail with reference to specific embodiments. It should be noted that the specific embodiments are illustrative and not restrictive of the present disclosure.

100351 Embodiment I 100361 A multifunctional lower-limb exercise instrument, as shown in FIG 1, FIG 2 and FIG 3, includes a bottom plate 1, two sliding rails 2, pedals 3 and a transmission mechanism.

100371 The two sliding rails 2 are symmetrically arranged on the bottom plate 1. A first pedal 3-1 and a second pedal 3-2 are slidably arranged on the two sliding rails 2 respectively; and the transmission mechanism is further arranged on the bottom plate 1, and the first pedal 3-1 and the second pedal 3-2 are connected through the transmission mechanism.

100381 When in use, a patient sits on a bed, and feet of the patient are placed on the first pedal 3-1 and the second pedal 3-2 respectively. At this moment, the first pedal 3-1 is located in the middle of one of the two sliding rails 2 and the second pedal 3-2 is located in the middle of an other one of the two sliding rails 2. The pedal 3 is held down by one foot, the pedal 3 and the one foot move forwards together. Meanwhile, the other foot is retracted in the opposite direction. By means of a linkage mechanism formed among the transmission device, the first pedal 3-1, the second pedal 3-2 and the two sliding rails 2, the movement of withdrawing the foot is more relaxed and easier. When the one foot moves forward to reach a preset position, the one foot starts to be retracted. Meanwhile, the other foot starts to move forward. So, the above steps are repeated alternately and cyclically, so that the patient with serious knee joint injuries is helped to complete synchronous and autonomous rehabilitation training of the two knees.

100391 Through a linkage of the transmission device, the first pedal 3-1, the second pedal 3-2 and the two sliding rails 2, the patient can drive the other leg to be retracted towards the inner side of the body by forward thrust of one leg, so that cooperative training of the two knees is achieved, thereby effectively improving the training efficiency. Also, the lower-limb muscle is effectively exercised, and the knee joint activity is effectively enhanced.

100401 For the linkage of the first pedal 3-1 and the second pedal 3-2, a belt type transmission mode is adopted in the present disclosure. Therefore, in some embodiments, the transmission mechanism includes a first transmission shaft, a second transmission shaft and a transmission belt. The transmission belt is sleeved on the first transmission shaft and the second transmission shaft and further connected with the first pedal 3-1 and the second pedal 3-2 respectively Compared with linkage of pedal performed by rotatable telescopic rods, the belt type transmission can enable the user to autonomously select the knee activity amplitude according to own conditions, without being affected by redundant external force. And, the user can imitate daily walking habits and drive the shanks to swing back and forth on straight line sections through the knee joints.

100411 In some embodiments, the transmission mechanism further includes at least one gear set. The at least one gear set includes a first gear and a second gear. The first transmission shaft and the second transmission shaft are provided with the first gear and the second gear respectively, and the first gear and the second gear are meshed with the transmission belt respectively. Compared with a transmission shaft, a larger transmission ratio can be obtained by adopting gear 4 connection, so that the operation of the transmission mechanism is more stable and smooth.

100421 In some embodiments, the transmission mechanism is provided with multiple gear sets. The gear sets are arranged in parallel, and the axes of corresponding gears 4 in the gear sets are located on the same vertical line, so as to preferably strength the stability of the linkage among the first pedal 3-1, the second pedal 3-2 and the two sliding rails 2.

100431 In some embodiments, each of the first pedal 3-1 and the second pedal 3-2 includes a pedal structural piece and a connecting piece. The pedal structural piece is fixedly connected with the connecting piece, the connecting piece is fixedly connected with the transmission mechanism, and the connecting pieces are slidably connected with the two sliding rails 2. In this way, the linkage of the pedals 3, the two sliding rails 2 and the transmission mechanism i s achieved.

10044] The transmission belt is a chain 5, and a sheath 6 is arranged on an outer side of the chain 5. The first pedal 3-1 and the second pedal 3-2 are fixedly connected with the sheath 6 through respective connecting pieces, and each connecting piece is connected with a part of the sheath 6 which is on a section of the chain 5. The low-speed and heavy-load operating conditions of knee joint training can be better adapted by adopting chain 5 transmission, so that the linkage between the two pedals is more smooth.

100451 In some embodiments, the sheath 6 is composed of multiple independent U-shaped structural parts, and each of the U-shaped structural parts is embedded into a corresponding one of sections of the chain.

100461 In some embodiments, the connecting piece is block-shaped. The upper end of the connecting piece is fixedly connected with the transmission mechanism and the pedal structural piece, and the lower end of the connecting piece is slidably connected with the sliding rail 2. For example, the bottom of the connecting piece can be arranged in a concave/convex shape and can be arranged in the corresponding convex/concave sliding rail in an embedded mode. Other common sliding block and sliding rail designs capable of meeting the above requirements may also be employed, and the present application is not particularly limited herein.

100471 In some embodiments, each of the two sliding rails 2 includes a straight line section, and the first pedal 3-1 and the second pedal 3-2 are arranged on the straight line section. The main training of the knee joints is to simulate the swing of the knee joints when a person walks. The first pedal 3-1 and the second pedal 3-2 can move back and forth by a specific straight line distance through the straight line section design, so that the knee joints are effectively trained.

100481 In order to avoid that the pedals are separated from the sliding rails to affect training or cause injure during training, in some embodiments, elastic stop blocks 7 are arranged at two ends of the straight line section respectively,so as to limit the first pedal 3-1 and the second pedal 3-2 to locate in a specific straight line distance for training.

100491 In some embodiments, a display device is further arranged on the bottom plate 1, a sensor is arranged on the transmission mechanism, and the sensor is connected with the display device, so that the patients can better observe their own training frequency, select proper training intensity and plan a training plan.

100501 Finally, it should be noted that the above description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure Although the present disclosure is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they may still make modifications to the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features thereof Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure.

Claims

WHAT IS CLAIMED IS: 1. A multifunctional lower-limb exercise instrument, comprising a bottom plate, two sliding rails, a first pedal, a second pedal and a transmission mechanism, wherein the two sliding rails are symmetrically arranged on the bottom plate; the first pedal and the second pedal are slidably arranged on the two sliding rails respectively; and the transmission mechanism is further arranged on the bottom plate, and the first pedal and the second pedal are connected through the transmission mechanism.
2. The multifunctional lower-limb exercise instrument according to claim I, wherein the transmission mechanism comprises a first transmission shaft, a second transmission shaft and a transmission belt, the transmission belt is sleeved on the first transmission shaft and the second transmission shaft, and the transmission belt is further connected with the first pedal and the second pedal.
3. The multifunctional lower-limb exercise instrument according to claim 2, wherein the transmission mechanism further comprises at least one gear set, the at least one gear set comprises a first gear and a second gear, the first transmission shaft and the second transmission shaft are provided with the first gear and the second gear respectively, and the first gear and the second gear are meshed with the transmission belt respectively.
4. The multifunctional lower-limb exercise instrument according to claim 3, wherein the transmission belt is a chain, a sheath is arranged on an outer side of the chain, the first pedal and the second pedal are fixedly connected with the sheath through respective connecting pieces, and each of the connecting pieces is connected with a corresponding part of the sheath which is on a respective connecting shaft of the chain.
5. The multifunctional lower-limb exercise instrument according to claim 4, wherein the sheath comprises a plurality of independent U-shaped structural parts, and each of the U-shaped structural parts is embedded into a corresponding one of sections of the chain.
6. The multifunctional lower-limb exercise instrument according to claim 1, wherein each of the two sliding rails comprises a straight line section, and the first pedal and the second pedal are arranged on the straight line section.
7. The multifunctional lower-limb exercise instrument according to claim 6, wherein elastic stop blocks are arranged at two ends of the straight line section, respectively.
8. The multifunctional lower-limb exercise instrument according to claim I, wherein a display device is further arranged on the bottom plate, a sensor is arranged on the transmission mechanism, and the sensor is connected with the display device.
9. A fitness instrument, comprising the multifunctional lower-limb exercise instrument according to any one of claims 1 to 8.
10. Application of the multifunctional lower-limb exercise instrument according to any one of claims Ito 8 in fields of medical treatment and sports.