Portable multifunctional lower limb rehabilitation equipment

Abstract

The invention relates to the field of medical production, in particular to portable multifunctional lower limb rehabilitation equipment which comprises a rehabilitation box body, a supporting seat arranged below the rehabilitation box body, two foot rest levers arranged above the rehabilitation box body and a control panel arranged at the top of the rehabilitation box body. By arranging the transposition assembly, a rotating handle and a worm are rotated to drive a worm gear and a linkage rod to rotate anticlockwise, and then a roller, a conveying belt, an incomplete gear and a double-rotating plate are driven to move, so that a pedal plate penetrates through an extending groove to enter the top of the rehabilitation box body to retract, folding of a pedal rod is achieved, the interval position of the pedal rod is reduced, and the occupied space is reduced; in addition, the rehabilitation device is further provided with a rapid insertion assembly, when the rehabilitation device is not used, the horizontal end of the Z-shaped foot rest lever can be folded on the pedal to form a vertical relation, the occupied space is further reduced, the vertical foot rest lever can serve as a carrying handle, and a user can carry the rehabilitation device conveniently.

Description

Technical Field

[0001] The invention relates to the field of medical production, in particular to a portable multifunctional lower limb rehabilitation device. Background Art

[0002] As the global population aging trend continues to deepen, the number of elderly people suffering from lower limb dysfunction is growing. Due to declining physical function and diseases, the elderly are prone to stroke, arthritis, fractures, etc., which lead to impaired lower limb motor function. Therefore, lower limb rehabilitation equipment is needed for training. It can provide rehabilitation training for multiple patients at the same time, improving treatment efficiency. Especially in rehabilitation institutions, limited therapists can provide rehabilitation guidance to more patients through equipment, saving human resources.

[0003] Traditional lower limb rehabilitation equipment is diverse and has many functional equipment. Patients who need lower limb rehabilitation may need to undergo rehabilitation training in different locations. Therefore, it is necessary to fold the multifunctional lower limb rehabilitation equipment to facilitate later portability and meet the rehabilitation needs of patients in different environments.

[0004] Existing multifunctional lower limb rehabilitation equipment usually includes a support base, a bicycle and a control panel. In order to ensure the stability and durability of the bicycle and the control panel, two bicycles and the control panel are fixed on the support base, and then the height is adjusted by folding on the support base, so that the patient's feet can adapt to the training of the lower limb rehabilitation equipment. However, the two bicycles fixed on the support base will protrude a part of the space, resulting in the entire device being large and difficult to carry. Secondly, the control panel is usually fixed on the support base and exposed to the outside. When the control panel is not in use, its surface is easily accidentally hit by other equipment, wheelchairs or pedestrians. It also occupies a certain space, causing the outer shell of the control panel to be damaged, reducing the carrying effect.

[0005] Therefore, it is necessary to propose a portable multifunctional lower limb rehabilitation device to solve the above technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a portable multifunctional lower limb rehabilitation device, which solves the technical problems that the bicycle is fixed on the support base and protrudes from the space, the device is large and difficult to carry; the control panel is fixed on the support base and exposed to the outside, which is easily damaged by collision and takes up space.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The technical solution adopted by the present invention to solve the technical problem is: a portable multifunctional lower limb rehabilitation device, comprising a rehabilitation box, a support seat arranged below the rehabilitation box, two pedals arranged above the rehabilitation box, and a control panel arranged on the top of the rehabilitation box, wherein the rehabilitation box opens upward and is in a square shape as a whole;

[0009] A transfer assembly is disposed in the inner cavity of the rehabilitation box and is used to fold the footrest to the top of the rehabilitation box when the device is not in use;

[0010] The flip assembly is arranged in the inner cavity of the rehabilitation box and is used to automatically fold the control panel flush with the top of the rehabilitation box when the device is not in use, and can provide protective measures for it.

[0011] Preferably, the indexing assembly comprises:

[0012] A linkage rod, which is arranged transversely and rotated in the middle of the rehabilitation box;

[0013] A worm gear fixed to the middle of the linkage rod;

[0014] A worm, which rotates in the inner cavity of the rehabilitation box and meshes with the worm wheel, and a right end of the worm rotates through the outer side of the rehabilitation box and is equipped with a handle;

[0015] There are two groups of rollers, one of which is fixed to the front and rear ends of the linkage rod, and the other group rotates on one side of the front and rear ends of the inner cavity of the rehabilitation box;

[0016] A conveyor belt, which is driven between two rollers;

[0017] There are four incomplete gears, which are symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box, and the incomplete gears at the front and rear ends are meshed with each other, and the rollers located on one side of the front and rear ends of the inner cavity of the rehabilitation box are fixedly connected to the corresponding incomplete gears;

[0018] There are four double rotating plates, which are symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box and are rotatably connected to the rehabilitation box through a rotating shaft. The left and right ends of the rehabilitation box are provided with extension grooves for the double rotating plates to extend out;

[0019] There are two foot pedals in a "mountain"-shaped structure. A quick plug-in assembly is provided between the foot pedal rod and the foot pedal. The top of the double rotating plate is rotatably connected to the foot pedal via a rotating shaft.

[0020] Preferably, a folding plate is installed at the bottom of the pedal rod, and a notch adapted to the folding plate is provided at the top of the pedal board, the folding plate is rotatably connected in the notch through a rotating shaft, a locking groove is provided at the bottom of the pedal board, and the quick plug assembly includes:

[0021] A locking block, which is fixedly connected to the folding plate and rotatably connected inside the locking groove;

[0022] A curved spring rod, which is fixed inside the locking groove and slidably connected with the locking block;

[0023] A torsion bar, which is threaded into the middle of the foot pedal, controls the movement of the locking block.

[0024] Preferably, a limiting block is provided at one end of the torsion rod close to the locking block, a rotation groove is provided on the side wall of the locking block, and a limiting groove connected to the rotation groove is provided in the middle of the side wall of the locking block, so that when the locking block and the foot pedal are rotated to a vertical state, one end of the torsion rod can quickly extend into the limiting groove through the limiting rotation groove.

[0025] Preferably, a protrusion is provided at one end of the limit block close to the locking block, a convex hole matching the protrusion is opened in the limit groove, the limit block is rotatably connected to one end of the torsion rod through a bearing, an annular limit rod is installed at one end of the limit block close to the torsion rod, and the limit rod is slidably connected to the foot pedal.

[0026] Preferably, a protective seat is installed in the middle of the top of the rehabilitation box, the control panel is telescopic inside the top of the protective seat, and is rotatably connected through a rotating shaft, and the flip assembly includes:

[0027] There are two drive plates, which are rotatably connected to the lower part of the control panel via a rotating shaft;

[0028] A lifting block, which has an L-shaped structure and is fixedly connected to the two driving plates;

[0029] A first slide rail seat, which is installed on the left side below the protection seat;

[0030] A first rack plate connected to the inner side of the first slide rail seat by means of a slide rail fit;

[0031] A driving gear, which is mounted in the middle of the linkage rod and meshes with the first rack plate;

[0032] There are two protective covers, which are installed on the opposite sides of the two foot pedals. A rubber protective pad is installed on one side of the protective cover close to the control panel.

[0033] Preferably, a fixing seat is installed at the top front end of the rehabilitation box, a locking rod is threadedly connected to the middle of the fixing seat, a U-shaped plug plate is rotatably connected to the side of the locking rod close to the foot pedal, and a plug hole is opened on the side of the protective cover close to the plug plate.

[0034] Preferably, the bottom of the rehabilitation box is connected to a lifting seat by a slide rail connection method, the bottom of the lifting seat and the support seat are plugged and installed, a compression spring is installed between the top of the lifting seat and the protective seat, a second slide rail seat is installed on the right side of the bottom of the protective seat, and the second slide rail seat is connected to a second rack plate fixedly connected to the lifting seat by a slide rail matching connection method.

[0035] Beneficial effects:

[0036] (1) The present invention sets a rotation assembly. By turning the handle, the worm drives the worm wheel and the linkage rod to rotate counterclockwise, thereby driving the roller, the transmission belt, the broken gear and the double rotating plate to move, so that the foot pedal passes through the extension slot and enters the top of the rehabilitation box and retracts, thereby realizing the folding of the foot pedal, reducing the spacing between the pedals and reducing the occupied space. The invention also sets a quick plug-in assembly, which can fold the horizontal end of the "Z"-shaped foot pedal onto the foot pedal to form a vertical relationship when the rehabilitation equipment is not in use, further reducing the occupied space. The vertical part of the foot pedal can be used as a carrying handle, which is convenient for users to carry.

[0037] (2) A protective seat is installed in the middle of the top of the rehabilitation box, and the control panel is telescopically mounted on the inner side of the top of the protective seat and is rotatably connected via a rotating shaft. When the foot pedal enters a folded state, the present invention arranges a flip assembly to cooperate with which, when the worm gear and the linkage rod rotate counterclockwise, the driving gear drives the first rack plate to move downward, and the lifting block moves accordingly, and drives the control panel to retract into the protective seat via the driving plate, thereby realizing automatic folding operation and improving safety protection. Protective covers are installed on opposite sides of the two foot pedals. When the foot pedals are folded, the protective cover automatically covers the control panel, thereby enhancing protection of the control panel and reducing the small rotation of the gears inside the rehabilitation box.

[0038] (3) The present invention installs a second slide rail seat on the right side of the bottom of the protective seat, and the second slide rail seat is connected to the second rack plate through the slide rail. When the pedal rod enters the folded state, the driving gear rotates counterclockwise, and the second rack plate drives the lifting seat and the support seat to retract into the rehabilitation box, thereby reducing the overall height and volume of the equipment. The folding and retracting design of the above components fully utilizes the internal space of the rehabilitation box, making the equipment more compact when not in use, reducing space occupancy, and facilitating storage and carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 is a cross-sectional view of the rehabilitation box of the present invention;

[0042] Figure 3 It is a cross-sectional view of the rehabilitation box of the present invention from another angle;

[0043] Figure 4 for Figure 2 Schematic diagram of the front view in FIG.

[0044] Figure 5 for Figure 3 A partial enlarged view of middle A;

[0045] Figure 6 It is a schematic diagram of a foot pedal of the present invention;

[0046] Figure 7 It is a schematic diagram of the quick plug assembly of the present invention;

[0047] Figure 8 It is a schematic diagram of the flip assembly of the present invention;

[0048] Fig. 9 It is a schematic diagram of the fixing seat, locking rod and plug plate of the present invention.

[0049] Numbers in the figure:

[0050] 1. Rehabilitation box; 10. Extension slot; 11. Support seat; 12. Pedal lever; 13. Control panel;

[0051] 2. Transfer assembly; 21. Linkage rod; 22. Worm gear; 23. Worm; 24. Roller; 25. Conveyor belt; 26. Incomplete gear; 27. Double transfer plate; 28. Foot pedal; 211. Quick plug assembly; 212. Folding plate; 213. Locking block; 214. Curved spring rod; 215. Torsion rod; 2151. Transfer groove; 216. Limit block; 217. Limit groove; 218. Limit rod; 2 21. Flip assembly; 222. Protective seat; 223. Drive plate; 224. Lifting block; 225. First slide rail seat; 226. First rack plate; 227. Drive gear; 228. Protective cover; 2281. Fixed seat; 2282. Locking rod; 2283. Insert plate; 2284. Insert hole; 231. Lifting seat; 232. Compression spring; 233. Second slide rail seat; 234. Second rack plate. DETAILED DESCRIPTION

[0052] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0053] like Figure 1-Figure 4As shown, a portable multifunctional lower limb rehabilitation device includes a rehabilitation box 1, a support base 11 arranged below the rehabilitation box 1, two pedals 12 arranged above the rehabilitation box 1 and a control panel 13 arranged on the top of the rehabilitation box 1, wherein the two pedals 12 are used for patients to perform lower limb exercise training, the rehabilitation box 1 opens upward, and is square in shape as a whole. It is the main structure of the entire device, plays a role in supporting and accommodating other components, and is convenient for later carrying. The transfer component 2 is arranged in the inner cavity of the rehabilitation box 1, and is used to fold the pedals 12 to the top of the rehabilitation box 1 when the device is not in use. The flip component 221 is arranged in the inner cavity of the rehabilitation box 1, and is used to automatically fold the control panel 13 to be flush with the top of the rehabilitation box 1 when the device is not in use, and protective measures can be taken for it.

[0054] like Figure 4-Figure 5 As shown, the transfer assembly 2 includes a linkage rod 21, which is arranged horizontally and rotates in the middle of the rehabilitation box 1, a worm wheel 22, which is fixed to the middle of the linkage rod 21, a worm 23, which rotates in the inner cavity of the rehabilitation box 1 and meshes with the worm wheel 22, and the right end of the worm 23 rotates through the outside of the rehabilitation box 1 and is equipped with a handle, rollers 24, which are provided in two groups, one of which is fixed to the front and rear ends of the linkage rod 21, and the other group rotates on one side of the front and rear ends of the inner cavity of the rehabilitation box 1, a transmission belt 25, which is transmitted between the two rollers 24, and a broken gear 26, which is provided in four groups, and The incomplete gears 26 are symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box 1, and the rollers 24 located on one side of the front and rear ends of the inner cavity of the rehabilitation box 1 are fixedly connected to the corresponding incomplete gears 26. There are four double rotating plates 27, which are symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box 1, and are rotatably connected to the rehabilitation box 1 through a rotating shaft. The left and right ends of the rehabilitation box 1 are provided with extension grooves 10 for extending the double rotating plates 27. There are two foot pedals 28, which are in a "mountain" shape. The top of the double rotating plate 27 is rotatably connected to the foot pedal 28 through a rotating shaft.

[0055] It should be noted that when the foot pedal 12 needs to be folded, the handle is manually turned, and the handle drives the worm 23 to rotate. The rotation of the worm 23 drives the worm wheel 22 and the linkage rod 21 to rotate counterclockwise. When the rollers 24 at the front and rear ends of the linkage rod 21 rotate with the linkage rod 21, this group of rollers 24 drives another group of rollers 24 on one side of the front and rear ends of the inner cavity of the rehabilitation box 1 to rotate through the transmission belt 25. The roller 24 located on the right side of the inner cavity of the rehabilitation box 1 is fixedly connected to one of the incomplete gears 26. The rotation of the roller 24 drives the incomplete gear 26 to rotate. 6 mesh with each other, so the four incomplete gears 26 rotate synchronously, the rotation of the incomplete gear 26 drives the double rotating plate 27 to rotate, and the double rotating plate 27 drives the foot pedal 28 to pass through the extension slot 10 into the interior of the rehabilitation box 1, and finally the two foot pedals 28 retract at the top of the rehabilitation box 1. By setting the transfer component 2, the two foot pedals 12 can be folded to the top of the rehabilitation box 1 and retracted when the equipment is not in use, reducing the space occupied by the two foot pedals 12, greatly reducing the overall size of the equipment, and making it convenient to carry, whether it is moving between different places or storing.

[0056] By setting the worm wheel 22 and the worm 23, the transmission of the worm 23 has a large transmission ratio, which is convenient for the user to fold and unfold the footrest 12 easily by turning the handle without consuming too much effort. At the same time, the transmission of the worm 23 has a self-locking function, which can ensure that the footrest 12 will not be accidentally unfolded due to external force, thereby ensuring the stability and safety of the equipment when in use.

[0057] like Figure 6-Figure 7 As shown, a folding plate 212 is installed at the bottom of the pedal rod 12, and a groove matched with the folding plate 212 is opened at the top of the foot pedal 28, and the folding plate 212 is rotatably connected in the groove through a rotating shaft, and a locking groove is opened at the bottom of the foot pedal 28. A quick plug-in assembly 211 is arranged between the pedal rod 12 and the foot pedal 28. The quick plug-in assembly 211 includes a locking block 213, which is fixedly connected to the folding plate 212 and rotatably connected on the inner side of the locking groove, a curved spring rod 214, which is fixed on the inner side of the locking groove and slidably connected to the locking block 213, and a torsion rod 215, which is threadedly connected to the middle part of the foot pedal 28, and is used to control the movement of the locking block 213.

[0058] It should be noted that when the foot pedal 28 retracts to the top of the rehabilitation box 1, in order to reduce the space occupied by the foot pedal 12, the torsion rod 215 is driven to release the locking block 213, and then the spring potential energy of the curved spring rod 214 causes the locking block 213 and the folding plate 212 to rotate and retract in the inner cavity of the foot pedal 28. Since the existing foot pedal 12 can provide more reasonable mechanical support and movement trajectory to adapt to the different movement requirements of patients during lower limb rehabilitation training, the foot pedal 12 is designed to have a "Z"-shaped structure. The present invention provides a quick plug-in assembly 211, and its unique shape allows one of its horizontal ends to be relatively easily folded onto the foot pedal 28 in a folded state, forming a vertical relationship with the foot pedal 28, thereby minimizing the occupied space, and the vertical foot pedal 12 can be used as a handle or a fixing point, which is convenient for users to grab and fix the equipment during carrying, thereby ensuring the portability and safety of the equipment.

[0059] like Figure 7 As shown, a limiting block 216 is provided at one end of the torsion rod 215 close to the locking block 213, a rotation groove 2151 is provided on the side wall of the locking block 213, and a limiting groove 217 connected to the rotation groove 2151 is provided in the middle of the side wall of the locking block 213, so that when the locking block 213 and the foot pedal 28 are rotated to a vertical state, one end of the torsion rod 215 can quickly extend into the limiting groove 217 through the limiting rotation groove 2151.

[0060] It should be noted that, in the initial state, the limit block 216 of the torsion rod 215 is located outside the rotation groove 2151 of the locking block 213. When the unfolding operation is performed, the locking block 213 rotates with the folding plate 212, and the position of the rotation groove 2151 also changes accordingly. When the locking block 213 and the foot pedal 28 reach a vertical state, the position of the rotation groove 2151 and the limit groove 217 just corresponds to one end of the torsion rod 215. One end of the torsion rod 215 can smoothly pass through the rotation groove 2151 into the inside of the limit groove 217, and then the locking block 213 is locked. 13 is squeezed and fixed to prevent the locking block 213 from rotating again. When the folding operation is performed, the torsion rod 215 is released, and the limit block 216 is disengaged from the limit groove 217. By releasing the spring potential energy of the curved spring rod 214, the locking block 213 will drive the folding plate 212 to be quickly folded inside the foot pedal 28, thereby ensuring that the foot pedal 12 remains stable in the folded state. In this way, when carrying the device, the foot pedal 12 will not be unfolded due to shaking or other external forces, thereby ensuring the overall structural stability of the device and facilitating carrying and transportation.

[0061] like Figure 7As shown, a protrusion is provided at one end of the limit block 216 close to the locking block 213, and a convex hole matching the protrusion is opened in the limit groove 217. The limit block 216 is rotatably connected to one end of the torsion rod 215 through a bearing, and an annular limit rod 218 is installed at one end of the limit block 216 close to the torsion rod 215, and the limit rod 218 and the foot pedal 28 are slidably connected.

[0062] When the locking block 213 is rotated to a state perpendicular to the foot pedal 28, the torsion rod 215 is quickly extended into the limiting groove 217 through the rotation groove 2151 under the action of the outside, and the protrusion enters the protruding hole to achieve further limiting. The sliding of the limiting rod 218 on the foot pedal 28 plays a guiding and stabilizing role, ensuring the accurate movement direction of the torsion rod 215 and ensuring that there is no shaking when the user uses the foot pedal 12, thereby improving the reliability of the equipment.

[0063] like Figure 4 and Figure 8 As shown, a protective seat 222 is installed in the middle of the top of the rehabilitation box 1, and the control panel 13 is telescopic on the inner side of the top of the protective seat 222 and is rotatably connected by a rotating shaft. The flip assembly 221 includes a driving plate 223, which is provided with two and is rotatably connected to the driving plate 223 below the control panel 13 through a rotating shaft, a lifting block 224, which is L-shaped and fixedly connected to the two driving plates 223, a first slide rail seat 225, which is installed on the left side below the protective seat 222, a first rack plate 226, which is connected to the inner side of the first slide rail seat 225 by means of a slide rail, a driving gear 227, which is installed in the middle of the linkage rod 21 and meshes with the first rack plate 226, and a protective cover 228, which is provided with two and is installed on the opposite sides of the two foot pedals 28, and a rubber protective pad is installed on the side of the protective cover 228 close to the control panel 13.

[0064] It should be noted that, in the initial state, the control panel 13 and the protective seat 222 are in an inclined state, which is convenient for the user to watch the control panel 13. When the worm gear 22 and the linkage rod 21 rotate counterclockwise, the driving gear 227 installed in the middle of the linkage rod 21 also rotates. Since the driving gear 227 is meshed with the first rack plate 226, and the first rack plate 226 is connected to the inner side of the first slide rail seat 225 by means of a slide rail, the rotation of the driving gear 227 will drive the first rack plate 226 to move downward in the first slide rail seat 225. When the first rack plate 226 moves downward, it will drive the lifting block 224 in an L-shaped structure fixedly connected thereto to move along the inside of the protective seat 222. The lifting block 224 is rotationally connected to the driving plate 223 below the control panel 13 through a rotating shaft, so the movement of the lifting block 224 will drive The driving plate 223 moves, thereby driving the control panel 13 to rotate inside the protective seat 222 and retract into the protective seat 222. When the foot pedal 28 is in the folding process, the protective cover 228 connected to it can automatically cover the exposed position of the control panel 13 when the control panel 13 enters the protective seat 222. The flip component 221 can realize automatic folding of the control panel 13. When the device is not in use, the control panel 13 can be retracted into the protective seat 222, thereby avoiding the control panel 13 from being exposed to the outside and being hit, thereby playing a good protective role.

[0065] The rubber protective pad can prevent other components from causing collision and scratching to the control panel 13, thereby further protecting the safety of the control panel 13.

[0066] like Fig. 9 As shown, a fixing seat 2281 is installed at the top front end of the rehabilitation box 1, a locking rod 2282 is threadedly connected to the middle of the fixing seat 2281, a U-shaped plug plate 2283 is rotatably connected to the side of the locking rod 2282 close to the foot pedal 28, and a socket 2284 is opened on the side of the protective cover 228 close to the plug plate 2283.

[0067] It should be noted that during the folding process of the foot pedal 28, the protective cover 228 is connected to the foot pedal 28. When the protective cover 228 moves to a suitable position, by twisting the locking rod 2282, since the locking rod 2282 is rotatably connected to the U-shaped plug plate 2283, the rotation of the locking rod 2282 will drive the plug plate 2283 to move. The plug plate 2283 will move toward the protective cover 228 and be inserted into the socket 2284 opened on one side of the protective cover 228, thereby further enhancing the protection effect of the control panel 13. At the same time, the fixing of the protective cover 228 can reduce the small rotation between the gears inside the rehabilitation box 1 to a certain extent, thereby improving the portability of the equipment.

[0068] like Figure 4-Figure 5As shown, the bottom of the rehabilitation box 1 is connected to a lifting seat 231 by a slide rail connection method, the bottom of the lifting seat 231 is plugged and installed with the support seat 11, a compression spring 232 is installed between the top of the lifting seat 231 and the protective seat 222, and a second slide rail seat 233 is installed on the right side of the bottom of the protective seat 222. The second slide rail seat 233 is connected to a second rack plate 234 fixedly connected to the lifting seat 231 by a slide rail matching connection method.

[0069] It should be noted that, in the initial stage, the support seat 11 and the lifting seat 231 extend out from the bottom of the rehabilitation box 1. When the driving gear 227 rotates counterclockwise, it moves upward inside the second slide rail seat 233 through the second rack plate 234. As the second rack plate 234 moves upward, it will drive the lifting seat 231 and the support seat 11 to retract into the rehabilitation box 1, reducing the overall height and volume of the equipment, making the equipment easier to carry and store. The compression spring 232 will be compressed in this process, playing a role in buffering and assisting in resetting.

[0070] The working principle of the present invention is as follows: when the portable multifunctional lower limb rehabilitation equipment is used, the handle is turned, the worm 23 drives the worm wheel 22 and the linkage rod 21 to rotate counterclockwise, and the roller 24 on the linkage rod 21 drives another group of rollers 24 to rotate through the transmission belt 25, thereby rotating the incomplete gear 26, and driving the double rotating plate 27 to rotate at the same time. The double rotating plate 27 pulls the foot pedal 28 into the top of the rehabilitation box 1 and retracts, driving the torsion rod 215 to release the locking block 213, and then the spring potential energy of the curved spring rod 214 causes the locking block 213 and the folding plate 212 to rotate and retract in the inner cavity of the foot pedal 28. In the folded state, the unique shape of the foot pedal 12 allows one of its horizontal ends to be relatively easily folded on the foot pedal 28, forming a vertical relationship with the foot pedal 28, thereby minimizing the occupied space to the greatest extent;

[0071] Initially, the control panel 13 and the protective seat 222 are tilted for easy viewing. When the worm gear 22 and the linkage rod 21 rotate counterclockwise, the driving gear 227 drives the first rack plate 226 to move downward, and the lifting block 224 moves accordingly, driving the control panel 13 to retract into the protective seat 222 through the driving plate 223. When the foot pedal 28 is folded, the protective cover 228 automatically covers the control panel 13, and the locking rod 2282 drives the plug plate 2283 to insert into the plug hole 2284 of the protective cover 228, thereby enhancing protection and reducing gear rotation;

[0072] Initially, the support seat 11 and the lifting seat 231 extend out of the bottom of the rehabilitation box 1. When the driving gear 227 rotates counterclockwise, the second rack plate 234 drives the lifting seat 231 and the support seat 11 to retract into the rehabilitation box 1, and the compression spring 232 plays a buffering and auxiliary resetting role.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A portable multifunctional lower limb rehabilitation device, comprising a rehabilitation box (1), characterized in that: A support base (11) arranged below the rehabilitation box (1), two pedals (12) arranged above the rehabilitation box (1), and a control panel (13) arranged on the top of the rehabilitation box (1); the rehabilitation box (1) opens upward and is square in shape as a whole; A transfer assembly (2) is arranged in the inner cavity of the rehabilitation box (1) and is used to fold the pedal bar (12) to the top of the rehabilitation box (1) when the device is not in use; The flip assembly (221) is arranged in the inner cavity of the rehabilitation box (1) and is used to automatically fold the control panel (13) flush with the top of the rehabilitation box (1) when the device is not in use, and to provide protective measures therefor.

2. A portable multifunctional lower limb rehabilitation device according to claim 1, characterized in that; The indexing assembly (2) comprises: A linkage rod (21) which is arranged transversely and rotates in the middle of the rehabilitation box (1); A worm gear (22) fixed to the middle of the linkage rod (21); A worm (23) rotates in the inner cavity of the rehabilitation box (1) and meshes with the worm wheel (22); a right end of the worm (23) rotates through the outside of the rehabilitation box (1) and is equipped with a handle; Rollers (24) are provided in two groups, one of which is fixed to the front and rear ends of the linkage rod (21), and the other group rotates on one side of the front and rear ends of the inner cavity of the rehabilitation box (1); A conveyor belt (25) is driven between two rollers (24); There are four incomplete gears (26) symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box (1), and the incomplete gears (26) at the front and rear ends mesh with each other, and the rollers (24) located on one side of the front and rear ends of the inner cavity of the rehabilitation box (1) are fixedly connected to the corresponding incomplete gears (26); There are four double rotating plates (27) symmetrically distributed at the front and rear ends of the inner cavity of the rehabilitation box (1) and rotatably connected to the rehabilitation box (1) via a rotating shaft. The left and right ends of the rehabilitation box (1) are provided with extension grooves (10) for the double rotating plates (27) to extend out. There are two foot pedals (28) in a "mountain"-shaped structure. A quick plug-in assembly (211) is provided between the foot pedal rod (12) and the foot pedal (28). The top of the double rotating plate (27) is rotatably connected to the foot pedal (28) via a rotating shaft.

3. A portable multifunctional lower limb rehabilitation device according to claim 2, characterized in that; A folding plate (212) is installed at the bottom of the pedal rod (12), and a notch matching the folding plate (212) is provided at the top of the pedal board (28), the folding plate (212) is rotatably connected in the notch via a rotating shaft, a locking groove is provided at the bottom of the pedal board (28), and the quick plug-in assembly (211) comprises: A locking block (213) which is fixedly connected to the folding plate (212) and is rotatably connected inside the locking groove; A curved spring rod (214) fixed inside the locking groove and slidably connected to the locking block (213); The torsion rod (215) is threadedly connected to the middle part of the foot pedal (28) and is used to control the movement of the locking block (213).

4. A portable multifunctional lower limb rehabilitation device according to claim 3, characterized in that; A limiting block (216) is arranged at one end of the torsion rod (215) close to the locking block (213); a rotation groove (2151) is provided on the side wall of the locking block (213); and a limiting groove (217) connected to the rotation groove (2151) is provided in the middle of the side wall of the locking block (213), so that when the locking block (213) and the foot pedal (28) are rotated to a vertical state, one end of the torsion rod (215) can be quickly extended into the limiting groove (217) through the limiting position of the rotation groove (2151).

5. A portable multifunctional lower limb rehabilitation device according to claim 4, characterized in that; A protrusion is arranged at one end of the limit block (216) close to the locking block (213); a protrusion hole matching the protrusion is arranged in the limit groove (217); the limit block (216) is rotatably connected to one end of the torsion rod (215) via a bearing; an annular limit rod (218) is installed at one end of the limit block (216) close to the torsion rod (215); and the limit rod (218) is slidably connected to the foot pedal (28).

6. The portable multifunctional lower limb rehabilitation device according to claim 1, characterized in that; A protective seat (222) is installed in the middle of the top of the rehabilitation box (1), the control panel (13) is telescopically mounted inside the top of the protective seat (222) and is rotatably connected via a rotating shaft, and the flip assembly (221) comprises: There are two drive plates (223), which are rotatably connected to the lower part of the control panel (13) via a rotating shaft; A lifting block (224) having an L-shaped structure and fixedly connected to the two driving plates (223); A first slide rail seat (225) is installed on the left side below the protection seat (222); A first rack plate (226) connected to the inner side of the first slide rail seat (225) by means of a slide rail; A driving gear (227) is mounted on the middle of the linkage rod (21) and meshes with the first rack plate (226); There are two protective covers (228) installed on the opposite sides of the two foot pedals (28). A rubber protective pad is installed on one side of the protective cover (228) close to the control panel (13).

7. A portable multifunctional lower limb rehabilitation device according to claim 6, characterized in that; A fixing seat (2281) is installed at the top front end of the rehabilitation box (1), a locking rod (2282) is threadedly connected to the middle of the fixing seat (2281), a U-shaped plug plate (2283) is rotatably connected to the side of the locking rod (2282) close to the foot pedal (28), and a plug hole (2284) is provided on the side of the protective cover (228) close to the plug plate (2283).

8. The portable multifunctional lower limb rehabilitation device according to claim 2, characterized in that; The bottom of the rehabilitation box (1) is connected to a lifting seat (231) by a slide rail connection method, the bottom of the lifting seat (231) is plugged and installed with the support seat (11), a compression spring (232) is installed between the top of the lifting seat (231) and the protective seat (222), and a second slide rail seat (233) is installed on the right side of the bottom of the protective seat (222), and a second rack plate (234) fixedly connected to the lifting seat (231) is connected inside the second slide rail seat (233) by a slide rail matching connection method.

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