Tendon stretching and foot hanging device and working method thereof

Abstract

The invention relates to a tendon stretching and foot hanging device which comprises a traction rope winding and unwinding rotating wheel with a spiral groove and a pair of foot hanging frames, the two foot hanging frames are wound on the traction rope winding and unwinding rotating wheel which is driven by an electric mechanism and provided with the spiral groove through a traction rope so as to achieve traction driving of ascending and descending of the two foot hanging frames, and each foot hanging frame comprises an L-shaped foot support used for containing a foot sole. The L-shaped foot support is formed by connecting a foot sole part and a foot support body, a tendon stretching pressing plate with the lower end hinged to the foot support part is located on the inner side of the foot sole part, the tendon stretching pressing plate is connected with a hanging rod which is used for driving the tendon stretching pressing plate to turn over and can be lifted upwards, and the foot hanging frame is provided with a pulley block mechanism used for pulling the hanging rod. The movable end of the pulling rope pulls the hanging rod through the pulley block mechanism. The device is simple in structure and reasonable in design, the pulley block mechanism is arranged, the physical force reducing principle of a combined pulley block is utilized quite scientifically, the pulley block mechanism is combined with the tendon stretching pressing plate, the tendon stretching pressure needed by both-leg tendon stretching exercise on the sole center can be effectively achieved, the tendon stretching exercise is convenient, and the physical and psychological health effect is remarkable.

Description

TECHNICAL FIELD

[0001] The present application relates to a stretching device and its working method. BACKGROUND

[0002] In China, there is a saying that the tendon is one inch long and the life is ten years long. The tendon referred to in the folk is the foot tendon, that is, the foot ligament. The ligament extends upward from the heel of the foot, passes through the knee fossa, and is medically known as "popliteal fossa". It is a rhombic concave area located at the back of the knee joint, where the thigh and calf are connected. This part is surrounded by muscles, ligaments and skin, and contains important blood vessels, nerves and lymphatic tissue. It is one of the physiological structures of lower limb movement. In order to stretch the "tendon", the essence is ligament stretching exercise. Most people engage in professional sports and adopt natural and traditional fitness methods such as standing straight or sitting with bent waist and leg lifting to press the waist, aiming to stretch the ligament. However, it is found that many people use tree trunks in the park or self-provided devices to perform extreme waist pressing and leg pressing, which is a non-scientific stretching exercise of ligament, causing ligament injury accidents. These methods are all bad methods of stretching the tendon by enduring pain. When exercising, the waist needs to be bent and pressed, and the waist movement is powerful and difficult to control, which is easy to cause ligament injury for people with impulsive heart. At the same time, for some elderly bedridden people, in order to increase the amount of exercise, it is more suitable to stretch the ligament of the foot. However, the conventional exercise method is not suitable for the elderly bedridden people, resulting in that the elderly bedridden people have no means to stretch the ligament of the foot. The device is targeted for ligament stretching of both legs, which is particularly beneficial to the protection of the legs of the elderly, so as to avoid the situation that the legs are weak and the person is bedridden. SUMMARY

[0003] The present application improves the above-mentioned problems. The technical problem to be solved by the present application is to provide a stretching device and its working method, which is simple in structure, convenient to use, remarkable in effect, and convenient and auxiliary for users to stretch the foot ligament. The stretching process is upward from the heel of both feet to the popliteal fossa, and then upward from both legs to the back, which has a significant effect on the whole body.

[0004] The present application is composed of a traction take-up rope reel with a spiral groove and a pair of foot lifting frames. The two foot lifting frames are wound on the traction take-up rope reel with a spiral groove driven by an electric mechanism through the traction rope, so as to realize the traction drive of the lifting and lowering of the two foot lifting frames. The foot lifting frame comprises an L-shaped foot support for containing the foot. The L-shaped foot support is composed of a foot support part and a foot support connecting part. A stretching pressure plate hinged to the foot support part at the lower end is located inside the foot support part. An upward lifting rod for driving the stretching pressure plate to overturn is connected to the stretching pressure plate. A pulley block mechanism for pulling the lifting rod is arranged on the foot lifting frame. The movable end of the traction rope pulls the lifting rod through the pulley block mechanism.

[0005] Further, the pulley block mechanism includes another crossbar connected to the upper end of the instep part and opposite to the suspension rod, and a row of force reduction pulleys are respectively arranged on the crossbar and the suspension rod. The fixed end of the traction rope is connected to the body of the suspension foot support, and the movable end of the traction rope is sequentially wound around the force reduction pulleys on the crossbar and the suspension rod in an S shape to realize the operation of applying pressure to the instep by the stretching and pressing plate driven by the suspension rod.

[0006] Further, the lower end of the instep part is provided with a through opening to facilitate the outward penetration of the suspension rod fixedly connected to the outside of the hinge part of the stretching and pressing plate.

[0007] Further, the electric mechanism is a numerical control electric mechanism.

[0008] Further, the traction take-up pulley with spiral grooves is connected with traction take-up ropes on both sides, and the end of each traction take-up rope is provided with a hook, and the traction end of the traction rope is provided with a metal ring, and the hook is hung in the metal ring.

[0009] Further, the working method of the stretching and suspending foot device includes the following steps: (1) the user lies on the bed and places both feet in the L-shaped foot support; (2) the electric mechanism drives the traction take-up pulley with spiral grooves to rotate, drives the traction rope on one side to be wound up and the traction rope on the other side to be unwound, so as to realize the traction driving of the two suspension foot supports being lifted and lowered, and always ensure that the traction ropes on both sides of the pulley are wound up and unwound by equal amount of driving; (3) when the traction rope on one side is pulled upward, the suspension foot support on this side is lifted upward, the movable end of the traction rope drives the suspension rod to swing upward through the pulley block mechanism, synchronously drives the stretching and pressing plate to swing toward the instep of the human body, so as to stretch the instep on this side; when the traction rope on the other side is unwound downward, the suspension foot support on this side is lowered, and the suspension rod and the stretching and pressing plate are reset, so that the instep on this side is in a relaxed state; (4) the suspension foot supports corresponding to the two feet of the human body are reciprocally lifted and lowered by rotation, and the two insteps of the human body are alternately pressed and relaxed, so as to realize the stretching operation of the two feet alternately, and facilitate and assist the user to stretch the instep ligament.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the device has a simple structure and a reasonable design. The user lies flat on the bed and places both feet in the L-shaped footrest; the electric mechanism drives the traction rope retraction and release wheel with a spiral groove to rotate, driving the traction rope on one side to reel in and the traction rope on the other side to unreel, so as to realize the traction drive of the two hanging legs to rise and fall, and always ensure that the traction ropes on both sides of the wheel are retracted and released by an equal amount; when the traction rope on one side is pulled upward, the hanging leg on that side rises When the foot rest is lifted up, the movable end of the traction rope pulls the boom to swing upward through the pulley mechanism, and simultaneously drives the tendon stretching plate to swing toward the sole of the human foot, thereby stretching the sole of the foot on that side; while the traction rope on the other side is paid out downward, the foot rest on that side descends downward, the boom and the tendon stretching plate return to their original positions, and the sole of the foot on that side is in a relaxed state; the foot rests corresponding to the two feet of the human body are raised and lowered back and forth by rotation, and the two soles of the human foot are alternately compressed and relaxed in turn, thereby achieving alternating tendon stretching of both feet, which is convenient and assists the user in stretching the ligaments of the soles of the feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram showing the initial state of the rib-stretching pressure plate of the foot suspension frame according to an embodiment of the present invention; Figure 2 Schematic diagram of the tilting state of the stretching plate of the foot suspension frame according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a force-reducing pulley assembly on a crossbar according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a force-reducing pulley assembly on a boom according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the upper and lower switching of the left and right hanging legs according to an embodiment of the present invention; In the figure: 101 - traction and retracting rope rotating wheel with spiral groove, 102 - electric mechanism, 103 - traction rope, 201 - L-shaped footrest, 2011 - sole part, 2012 - footrest part, 2013 - opening, 202 - cross bar, 203 - force reduction pulley block, 301 - stretching plate, 302 - suspension rod, 303 - traction and retracting rope, 304 - metal ring. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Example: Figures 1-5As shown, in an embodiment of the present invention, a tendon stretching and foot hanging device is provided, comprising a traction and retracting rope wheel 101 with a spiral groove and a pair of foot hanging frames. The two foot hanging frames are wound on the traction and retracting rope wheel with a spiral groove driven by an electric mechanism 102 via a traction rope 103, so as to realize the traction drive of the two foot hanging frames, one of which is raised and the other is lowered. The foot hanging frame includes an L-shaped foot support 201 for holding the sole of the foot. The L-shaped foot support is composed of a sole part 2011 and a foot support part 2012 connected together, and the lower end of the tendon stretching and pressing part is hinged to the foot support part. The plate 301 is located on the inner side of the sole of the foot. The stretching plate is connected to a lifting rod 302 that can be lifted upward for driving the stretching plate to flip. The foot hanging frame is provided with a pulley group mechanism for pulling the lifting rod. The movable end of the traction rope pulls the lifting rod through the pulley group mechanism. The pulley group mechanism can obtain dozens of times of force to pull the lifting rod upward, thereby increasing the stretching plate's stretching exercise on the sole of the foot and providing sufficient sole stretching pressure, achieving the angle of reducing force to flip the stretching plate, so as to achieve the exercise of stretching the heel ligament. Among them, the L-shaped foot support and cross bar are integrated, and the suspension rod and stretching plate are integrated.

[0014] When in use: the user lies flat on the bed and places both feet in the L-shaped footrest; the electric mechanism drives the traction and release rope rotating wheel with a spiral groove to rotate, driving the traction rope on one side to reel in and the traction rope on the other side to unwind, so as to realize the traction drive of the two hanging frames to rise and fall, and always ensure that the traction ropes on both sides of the rotating wheel rise and fall by an equal amount of retraction and release driving amount; when the traction rope on one side is pulled upward, the hanging frame on this side rises upward, and the movable end of the traction rope pulls the hanging rod to swing upward through the pulley group mechanism, synchronously driving the tendon stretching pressure plate to swing toward the sole of the human body, thereby stretching the sole of the foot on this side; when the traction rope on the other side is paid out downward, the hanging frame on this side falls downward, and the hanging rod and the tendon stretching pressure plate are reset, and the sole of the foot on this side is in a relaxed state; the hanging frames corresponding to the two feet of the human body are raised and lowered back and forth by rotation, and the two soles of the human body are alternately compressed and relaxed in turn, thereby realizing the alternating tendon stretching operation of both feet, which is convenient and assists the user to stretch the ligaments of the soles of the feet.

[0015] In an embodiment of the present invention, the pulley group mechanism includes another cross bar 202 correspondingly connected to the upper end of the sole of the foot and opposite to the suspension rod, and a row of force-reducing pulley groups 203 are respectively provided on the cross bar and the suspension rod. The fixed end of the traction rope is connected to the foot suspension frame body, and the movable end of the traction rope is passed around the force-reducing pulleys located on the cross bar and the suspension rod in an S-shape one by one, so as to realize the operation of applying pressure to the sole of the foot by driving the stretching pressure plate through the suspension rod; of course, the cross bar and the suspension rod can be provided with two rows of force-reducing pulley groups, and the traction ropes on the two rows of force-reducing pulley groups are combined into one to pull or release the line.

[0016] In the embodiment of the present invention, a through opening 2013 is provided at the lower end of the sole portion to facilitate the outward passage of the suspension rod fixedly connected to the outer side of the hinged portion of the rib stretching plate.

[0017] In the embodiment of the present invention, the electric mechanism is a numerically controlled electric mechanism, which is safe to use and can achieve precise control and extreme control; the electric mechanism can adopt a servo motor.

[0018] In an embodiment of the present invention, a traction and release rope 303 is connected to both sides of the traction and release rope wheel with a spiral groove, and a hook 305 is provided at the end of the traction and release rope on each side, and a metal ring 304 is provided at the traction end of the traction rope on the corresponding side, and the hook is hung and fixed in the metal ring.

[0019] Unless otherwise stated, for any of the technical solutions disclosed in the present invention, if a numerical range is disclosed, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely a numerical range that is representative or has a more obvious technical effect among many feasible numerical values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, the present invention discloses some numerical values ​​to illustrate the technical solutions of the present invention. Moreover, the numerical values ​​listed above should not be construed as limiting the scope of protection of the present invention.

[0020] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes include states or shapes that are approximate, similar, or close thereto.

[0021] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for protection of the present invention.

Claims

1. A tendon stretching and foot hanging device, characterized in that: The invention comprises a traction rope retracting wheel with a spiral groove and a pair of foot hanging frames for use in a lying state, the two foot hanging frames are wound on the traction rope retracting wheel with a spiral groove driven by an electric mechanism via a traction rope to realize the traction drive of the two foot hanging frames to rise and fall, the foot hanging frame comprises an L-shaped foot rest for holding the soles of the feet, the L-shaped foot rest is formed as a whole by the sole part and the foot rest part, the stretching pressure plate whose lower end is hinged to the foot rest part is located on the inner side of the sole part, the stretching pressure plate is connected to a suspension rod that can be lifted upward for driving the stretching pressure plate to flip, the foot hanging frame is provided with a pulley group mechanism for pulling the suspension rod, and the movable end of the traction rope pulls the suspension rod through the pulley group mechanism.

2. A tendon stretching and foot hanging device according to claim 1, characterized in that: The pulley assembly mechanism includes another cross bar correspondingly connected to the upper end of the sole of the foot and opposite to the suspension rod. A row of force-reducing pulley groups are respectively provided on the cross bar and the suspension rod. The fixed end of the traction rope is connected to the foot suspension frame body, and the movable end of the traction rope is passed around the force-reducing pulleys located on the cross bar and the suspension rod in an S-shape, so as to realize the operation of applying pressure to the sole of the foot by driving the stretching pressure plate through the suspension rod.

3. The tendon stretching and foot hanging device according to claim 1, characterized in that: The lower end of the sole portion is provided with a through opening to facilitate the hanging rod fixedly connected to the outer side of the hinged portion of the stretching plate to pass outward.

4. The tendon stretching and foot hanging device according to claim 1, characterized in that: The electric mechanism is a numerically controlled electric mechanism.

5. The tendon stretching and foot hanging device according to claim 1, characterized in that: The two sides of the traction and release rope rotating wheel with a spiral groove are respectively connected to the traction and release rope, and the end of the traction and release rope on each side is provided with a hook, and the traction end of the traction rope is provided with a metal ring, and the hook is hung in the metal ring.

6. The working method of the tendon stretching and foot hanging device according to claim 1, characterized in that: The method comprises the following steps: (1) the user lies flat on the bed and places both feet in the L-shaped footrest; (2) the electric mechanism drives the traction rope retraction and release wheel with the spiral groove to rotate, driving the traction rope on one side to reel in and the traction rope on the other side to unreel, so as to realize the traction drive of the two hanging legs to rise and fall, and always ensure that the traction ropes on both sides of the wheel are retracted and released by the same amount; (3) when the traction rope on one side is pulled upward, the hanging leg on that side rises upward, and the movable end of the traction rope is passed through the rotating wheel. The pulley mechanism pulls the boom upwards and swings, and simultaneously drives the ligament stretching plate to swing towards the sole of the human foot, thereby stretching the sole of the foot on that side; while the traction rope on the other side is released downwards, the foot suspension frame on that side drops downwards, and the boom and ligament stretching plate are reset. At this time, the sole of the foot on that side is in a relaxed state; (4) The foot suspension frames corresponding to the two feet of the human body are raised and lowered back and forth by rotation, and the two soles of the human foot are alternately compressed and relaxed, thereby realizing the alternating stretching operation of both feet, which is convenient and assists the user in stretching the ligaments of the sole of the foot.

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