A device for assisting rehabilitation movement of a bedridden hemiplegic patient

Abstract

The application belongs to the technical field of rehabilitation apparatuses, and particularly relates to an auxiliary rehabilitation exercise device for bedridden hemiplegic patients, which comprises a bottom plate, an intermediate plate and side plates. The side plates are two in number, and the intermediate plate and the two side plates are hingedly connected to the front end of the bottom plate. The two side plates are respectively located on the left and right sides of the intermediate plate. The front end of the bottom plate is provided with a limiting piece arranged in the longitudinal direction. Locking grooves are formed in the opposite sides of the two side plates. The intermediate plate is provided with a connecting mechanism, which comprises a rack, a gear, a synchronous belt and a locking piece. The rack is transversely and slidably connected to the intermediate plate in the left-right direction and corresponds to the position of the locking groove. The gear is rotatably connected to the intermediate plate and is engaged with the rack. The auxiliary rehabilitation exercise device can assist patients in leg lifting training, and can adjust the training mode according to the patient's condition to adapt to different types of hemiplegic patients. The device can effectively improve the lower limb function of the hemiplegic patients and promote their ability to walk independently as soon as possible.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rehabilitation equipment, and particularly relates to an auxiliary rehabilitation exercise device for bedridden hemiplegic patients. BACKGROUND

[0002] With the acceleration of global population aging, the number of bedridden hemiplegic patients is gradually increasing. These patients usually have limb dysfunction on one side due to stroke or other nervous system diseases, which seriously affects their daily life and self-care ability. Hemiplegia not only brings challenges to the physical health of patients, but also has a negative impact on their psychological state and social interaction. Therefore, rehabilitation treatment for hemiplegic patients is particularly important, which not only helps to promote functional recovery, but also significantly improves the quality of life of patients.

[0003] Among many rehabilitation training, leg lifting exercise is a basic and key training method. This exercise can effectively prevent muscle atrophy and deep vein thrombosis by enhancing lower limb muscle strength, improving joint range of motion, and promoting blood circulation. Studies have shown that regular leg lifting training can effectively improve the lower limb function of hemiplegic patients and promote their ability to walk independently as soon as possible. In order to assist patients in lifting exercise, we propose an auxiliary rehabilitation exercise device for bedridden hemiplegic patients. SUMMARY

[0004] To overcome the problems in the related art, the application discloses an auxiliary rehabilitation exercise device for bedridden hemiplegic patients.

[0005] To achieve the above-mentioned purpose, one technical scheme adopted by the application is as follows:

[0006] The auxiliary rehabilitation exercise device for bedridden hemiplegic patients comprises a bottom plate, an intermediate plate, and side plates, the side plates are two, the intermediate plate and the two side plates are hinged to the front end of the bottom plate, and the two side plates are respectively located on the left and right sides of the intermediate plate.

[0007] The front end of the bottom plate is provided with a limiting piece arranged in the longitudinal direction, and the opposite sides of the two side plates are respectively provided with a locking groove.

[0008] The intermediate plate is internally provided with a connecting mechanism, the connecting mechanism comprises a rack, a gear, a synchronous belt, and a locking piece, the rack is transversely and slidingly connected to the intermediate plate and corresponds to the position of the locking groove, the gear is rotationally connected to the intermediate plate and meshes with the rack, the locking piece is rotationally connected to the intermediate plate and located at the rear side of the gear, the peripheral surface of the locking piece is provided with an annular groove, a plurality of meshing teeth are annularly arranged on the inner wall of the annular groove, the synchronous belt meshes with the meshing teeth and the gear, respectively, and the locking piece is provided with a first locking groove, a second locking groove, and a third locking groove parallel to the rotation axis of the locking piece.

[0009] When the bottom plate is flush with the intermediate plate, the circumferential surface of the locking piece is in a vertical state parallel to the front end surface of the limiting piece;

[0010] When the first locking groove is aligned with the limiting piece, the left end of the rack will extend out of the left end of the intermediate plate, and the right end of the rack will not extend out of the right end of the intermediate plate. In this state, the upward overturning of the intermediate plate relative to the bottom plate will cause the first locking groove to be sleeved outside the limiting piece, thereby limiting the rotation of the locking piece.

[0011] When the second locking groove is aligned with the limiting piece, the left end of the rack will extend out of the left end of the intermediate plate, and the right end of the rack will extend out of the right end of the intermediate plate. In this state, the upward overturning of the intermediate plate relative to the bottom plate will cause the second locking groove to be sleeved outside the limiting piece, thereby limiting the rotation of the locking piece.

[0012] When the third locking groove is aligned with the limiting piece, the right end of the rack will extend out of the right end of the intermediate plate, and the left end of the rack will not extend out of the left end of the intermediate plate. In this state, the upward overturning of the intermediate plate relative to the bottom plate will cause the third locking groove to be sleeved outside the limiting piece, thereby limiting the rotation of the locking piece.

[0013] Further, the intermediate plate has an assembly groove inside, the rack, the gear, the synchronous belt and the locking piece are all arranged in the assembly groove, the left and right ends of the intermediate plate are both provided with a rack sliding groove in communication with the assembly groove for the rack to pass through, and the rear end of the intermediate plate is provided with a limiting piece accommodation slot opposite to the limiting piece for the intermediate plate to extend into.

[0014] Further, the synchronous belt is engaged with the middle part of the gear for transmission, and the middle part of the rack is provided with a synchronous belt accommodation slot matched with the synchronous belt.

[0015] Further, the gear and the locking piece are respectively connected with the intermediate plate through a first rotating shaft and a second rotating shaft.

[0016] Further, the upper end of the rack is fixedly connected with a push rod penetrating upwardly through the intermediate plate, and the intermediate plate is provided with a push rod sliding groove matched with the push rod.

[0017] Further, a flexible rod sleeve is sleeved outside the push rod.

[0018] Further, the intermediate plate and the two side plates are both hinged to the front end of the bottom plate through a hinge assembly.

[0019] Furthermore, the hinge assembly includes a side connecting seat, an intermediate connecting member, and a hinge shaft. There are two side connecting seats and two hinge shafts. A first shaft hole is opened on one side of the side connecting seat. The first shaft hole does not penetrate the side connecting seat. The intermediate connecting member includes a connecting plate and an intermediate connecting seat. There are two intermediate connecting seats. The two intermediate connecting seats are fixedly connected to the left and right ends of the connecting plate at intervals. Both intermediate connecting seats are opened with a second shaft hole that penetrates through the connecting plate.

[0020] The middle plate has a third shaft hole on both the left and right sides. The third shaft hole is a blind hole. The two side plates have a fourth shaft hole. The fourth shaft hole is a through hole.

[0021] The two side connecting seats are respectively fixed to the left and right sides of the front end of the base plate. The first shaft holes of the two side connecting seats are arranged opposite each other. The intermediate connecting member is fixed to the middle of the front end of the base plate. The two side plates are respectively assembled between the side connecting seats and the intermediate connecting seats on the same side. The intermediate plate is assembled between the two intermediate connecting seats. The two hinge shafts pass through the second shaft hole and the fourth shaft hole on the same side, and their two ends extend into the first shaft hole and the third shaft hole on the same side, respectively.

[0022] Furthermore, the limiting member is located at the center of the front end of the connecting plate.

[0023] Furthermore, a rope buckle is provided at the front of the intermediate plate.

[0024] This invention discloses an auxiliary rehabilitation exercise device for bedridden hemiplegic patients. This auxiliary rehabilitation exercise device can assist patients in performing leg raising exercises, and the training mode can be adjusted according to the patient's condition to adapt to different types of hemiplegic patients. By assisting patients in performing leg raising exercises through this device, the lower limb function of hemiplegic patients can be effectively improved, and their ability to walk independently can be promoted as soon as possible. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0028] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0029] Figure 4 forFigure 1 Structure enlarged schematic view at C;

[0030] Figure 5 Sectional structure schematic view of an embodiment of the present application;

[0031] Figure 6 Structure enlarged schematic view at D; Figure 5

[0032] Figure 7 Structure enlarged schematic view at E; Figure 5

[0033] Figure 8 Structure enlarged schematic view at F; Figure 5

[0034] Figure 9 Schematic view of the meshing of the rack and pinion in an embodiment of the present application;

[0035] Figure 10 Structure schematic view of the intermediate connecting piece in an embodiment of the present application;

[0036] Figure 11 Structure schematic view of the side connecting seat in an embodiment of the present application;

[0037] Figure 12 Structure schematic view of the locking piece in an embodiment of the present application.

[0038] The meanings of the various reference numerals in the drawings are as follows:

[0039] Base plate 1, limiting piece 111, intermediate plate 2, rack 21, synchronous belt allowing slot 211, push lever 212, flexible lever sleeve 213, pinion 22, first rotating shaft 221, meshing tooth 222, synchronous belt 23, locking piece 24, ring slot 241, first locking slot 242, second locking slot 243, third locking slot 244, second rotating shaft 245, assembly slot 25, rack sliding slot 26, limiting piece allowing slot 27, third shaft hole 28, push lever sliding slot 29, side plate 3, lock slot 31, fourth shaft hole 32, rope buckle 4, side connecting seat 51, first shaft hole 511, intermediate connecting piece 52, connecting plate 521, intermediate connecting seat 522, second shaft hole 523, hinged shaft 53. DETAILED DESCRIPTION

[0040] The present application will be further described below with reference to the drawings.

[0041] Referring to Figures 1-12 the drawings, the bedridden hemiplegic patient auxiliary rehabilitation exercise device of the present embodiment includes a base plate 1, an intermediate plate 2, and two side plates 3. The intermediate plate 2 and the two side plates 3 are hingedly connected to the front end of the base plate 1, and the two side plates 3 are respectively located on the left and right sides of the intermediate plate 2. ​​​

[0042] Further, the intermediate plate 2 and the two side plates 3 are both hinged to the front end of the bottom plate 1 through the hinge assembly 5.

[0043] Specifically, the hinge assembly 5 comprises side connecting seats 51, an intermediate connecting piece 52 and hinge shafts 53, the side connecting seats 51 and the hinge shafts 53 both have two, the side connecting seats 51 are provided with first shaft holes 511 on one side, the first shaft holes 511 do not penetrate the side connecting seats 51, the intermediate connecting piece 52 comprises a connecting plate 521 and intermediate connecting seats 522, the intermediate connecting seats 522 have two, the two intermediate connecting seats 522 are fixedly connected to the left and right ends of the connecting plate 521, and the two intermediate connecting seats 522 are both provided with second shaft holes 523 penetratingly arranged;

[0044] The left and right sides of the intermediate plate 2 are both provided with third shaft holes 28, the third shaft holes 28 are blind holes, and the two side plates 3 are both provided with fourth shaft holes 32, the fourth shaft holes 32 are through holes;

[0045] The two side connecting seats 51 are respectively fixedly connected to the left and right sides of the front end of the bottom plate 1, the first shaft holes 511 of the two side connecting seats 51 are oppositely arranged, the intermediate connecting piece 52 is fixedly connected to the middle of the front end of the bottom plate 1, the two side plates 3 are respectively assembled between the same side side connecting seat 51 and the same side intermediate connecting seat 522, the intermediate plate 2 is assembled between the two intermediate connecting seats 522, and the two hinge shafts 53 respectively penetrate the same side second shaft hole 523 and the fourth shaft hole 32 and respectively extend into the same side first shaft hole 511 and the third shaft hole 28.

[0046] Through the arrangement mode of the hinge assembly 5, the intermediate plate 2 and the two side plates 3 can be hinged to the front end of the bottom plate 1.

[0047] In the embodiment, the front end of the bottom plate 1 is provided with a limiting piece 111 arranged in the longitudinal direction, and the limiting piece 111 is specifically arranged at the middle of the front end of the connecting plate 521, and the arrangement mode is convenient for mounting the limiting piece 111. The opposite sides of the two side plates 3 are both provided with lock grooves 31.

[0048] In the embodiment, the intermediate plate 2 is provided with a connecting mechanism, the connecting mechanism comprises a rack 21, a gear 22, a synchronous belt 23 and a locking piece 24, the rack 21 is transversely and slidingly connected to the intermediate plate 2 and corresponds to the position of the lock groove 31, the gear 22 is rotationally connected to the intermediate plate 2 and is in mesh with the rack 21, the locking piece 24 is rotationally connected to the intermediate plate 2 and is located at the rear side of the gear 22, the peripheral surface of the locking piece 24 is provided with an annular groove 241, a plurality of meshing teeth 222 are annularly arranged on the inner wall of the annular groove 241, the synchronous belt 23 is in mesh with the meshing teeth 222 and the gear 22, and the peripheral surface of the locking piece 24 is provided with a first locking groove 242, a second locking groove 243 and a third locking groove 244 which are parallel to the rotation axis of the locking piece 24.

[0049] Further, in the embodiment, the intermediate plate 2 has an assembly groove 25 inside, the rack 21, the gear 22, the synchronous belt 23 and the locking piece 24 are arranged in the assembly groove 25, and the intermediate plate 2 is provided with a rack sliding groove 26 at the left and right ends, which is communicated with the assembly groove 25 and used for the rack 21 to pass out, and the intermediate plate 2 is provided with a limiting piece accommodation groove 27 at the rear end, which is opposite to the limiting piece 111 and used for the intermediate plate 2 to extend into.

[0050] Further, the synchronous belt 23 is engaged with the middle part of the gear 22 for transmission, and the middle part of the rack 21 is provided with a synchronous belt accommodation groove 211 matched with the synchronous belt 23. The engagement can make the gear 22 bear stable force, so as to improve the transmission stability.

[0051] Further, in the embodiment, the gear 22 and the locking piece 24 are rotationally connected with the intermediate plate 2 through the first rotating shaft 221 and the second rotating shaft 245 respectively.

[0052] When the device is used, it needs to be placed on a plane, such as a bed in a ward. When the device is placed on the bed, the intermediate plate 2 and the two side plates 3 are flush with the bottom plate 1. In this state, the peripheral surface of the locking piece 24 is in a vertical state parallel to the front end surface of the limiting piece 111. In this state, the locking grooves on the locking piece 24 are not sleeved outside the limiting piece 111, so the rotation of the locking piece 24 will not be limited.

[0053] In actual use, different hemiplegic patients in bed have different training needs. Generally, there are three training needs, one is to train only the left leg, two is to train only the right leg, and three is to train both legs. The device for assisting the rehabilitation exercise of the hemiplegic patient in bed provided by the application can be applied to the above three training modes, and the specific training mode can be switched by adjusting the operation.

[0054] When the training mode is adjusted, the rack 21 is controlled to slide left or right. When the rack 21 is only inserted into the locking groove 31 of the left side plate 3, the left side plate 3 is fixed with the intermediate plate 2. When the intermediate plate 2 is driven to turn up, the intermediate plate 2 drives the left side plate 3 to turn up. Similarly, when the rack 21 is only inserted into the locking groove 31 of the right side plate 3, the intermediate plate 2 is driven to turn up, and the intermediate plate 2 drives the right side plate 3 to turn up. When the rack 21 is inserted into the locking grooves 31 of the left and right side plates 3 at the left and right ends, the two side plates 3 form a whole with the intermediate plate 2. When the intermediate plate 2 is turned up, the two side plates 3 are synchronously turned up.

[0055] It is worth mentioning that in the embodiment, the rack 21 is fixed with a push rod 212 penetrating the middle plate 2 upward, and the middle plate 2 is provided with a push rod sliding groove 29 matched with the push rod 212. When the user pushes the push rod 212 left and right, the rack 21 can slide left and right, so that the training mode can be adjusted. In addition, the flexible rod sleeve 213 is sleeved outside the push rod 212, which can improve the grip feeling of the push rod 212.

[0056] When the above adjustment operation is performed, the sliding of the rack 21 drives the gear 22 engaged with the rack 21 to rotate, and the rotation of the gear 22 drives the locking piece 24 engaged with the gear 22 to rotate through the synchronous belt 23. When the locking piece 24 rotates, the locking grooves arranged on the locking piece 24 switch positions.

[0057] In the embodiment, when the first locking groove 242 rotates with the locking piece 24 to align with the limiting piece 111, the left end of the rack 21 will protrude out of the left end of the middle plate 2, and the right end of the rack 21 will not protrude out of the right end of the middle plate 2. In this state, if both the side plates 3 and the middle plate 2 are in a flat state, the rack 21 will be inserted into the left locking groove 31, so that the left side plate 3 and the middle plate 2 are connected. In this state, when the middle plate 2 is driven to flip upward, the middle plate 2 will only drive the left side plate 3 to flip upward together. As can be seen, this state is suitable for lifting leg training of the left leg. It is worth mentioning that in this state, the upward flipping of the middle plate 2 relative to the bottom plate 1 will cause the first locking groove 242 to be sleeved outside the limiting piece 111, so that the limiting piece 111 will limit the rotation of the locking piece 24 in cooperation with the first locking groove 242. After the rotation of the locking piece 24 is limited, the gear 22 connected with the locking piece 24 through the synchronous belt 23 will be limited to rotate synchronously, so that the rack 21 engaged with the gear 22 cannot slide left and right. The connection between the middle plate 2 and the left side plate 3 is locked, so that the left side plate 3 and the middle plate 2 are prevented from being disconnected during the rehabilitation training of the patient when the left side plate 3 flips with the middle plate 2. When the patient stops training, since the middle plate 2 will be reset to be flush with the bottom plate 1, the first locking groove 242 and the limiting piece 111 will be unsleeved, so that the rack 21 can be contacted and limited to slide left and right. At this time, the training mode of the device can be adjusted.

[0058] In the embodiment, when the second locking groove 243 rotates with the locking piece 24 to align with the limiting piece 111, the left end of the rack 21 will extend out of the left end of the middle plate 2, and the right end of the rack 21 will extend out of the right end of the middle plate 2. In this state, if both sides of the side plate 3 and the middle plate 2 are in a flat state, the two ends of the rack 21 will be inserted into the left and right locking grooves 31 respectively, so that both sides of the side plate 3 and the middle plate 2 are connected, and when the middle plate 2 is driven to flip up, the middle plate 2 will drive both sides of the side plate 3 to flip up together, so it can be seen that this state is suitable for leg lifting training of both legs at the same time. It is worth mentioning that in this state, the upward flipping of the middle plate 2 relative to the bottom plate 1 will make the second locking groove 243 fit outside the limiting piece 111, so that the limiting piece 111 will cooperate with the second locking groove 243 to limit the rotation of the locking piece 24, and after the rotation of the locking piece 24 is limited, the gear 22 connected with the locking piece 24 through the synchronous belt 23 will be limited to rotate synchronously, so the rack 21 meshing with the gear 22 will not be able to slide left and right, and the connection between the middle plate 2 and the left and right side plates 3 will be locked, so as to prevent the left and right side plates 3 from being disconnected with the middle plate 2 when the left and right side plates 3 are flipped with the middle plate 2 to rehabilitate the patient, so as to avoid that when the patient is training both legs, one leg suddenly loses support, and thus ensure the safety of training. When the patient stops training, since the middle plate 2 will be reset to be flush with the bottom plate 1, the second locking groove 243 and the limiting piece 111 will be disengaged, so that the rack 21 can be contacted and limited to slide left and right, at this time the training mode of the device can be adjusted.

[0059] In the embodiment, when the third locking groove 244 is aligned with the limiting piece 111 by rotating the locking piece 24, the right end of the rack 21 will extend to the right end of the middle plate 2, and the left end of the rack 21 will not extend to the left end of the middle plate 2. In this state, if both the side plates 3 and the middle plate 2 are in a flat state, the rack 21 will be inserted into the right locking groove 31, so that the right side plate 3 and the middle plate 2 remain connected. When the middle plate 2 is driven to flip up, it will only drive the right side plate 3 to flip up together. Therefore, this state is suitable for leg lifting training of the right leg. It is worth mentioning that in this state, the upward flipping of the middle plate 2 relative to the bottom plate 1 will cause the third locking groove 244 to be sleeved outside the limiting piece 111. Thus, the limiting piece 111 will cooperate with the third locking groove 244 to limit the rotation of the locking piece 24. After the rotation of the locking piece 24 is limited, the gear 22 connected with the locking piece 24 through the synchronous belt 23 will be synchronously limited to rotate. Thus, the rack 21 engaged with the gear 22 will not be able to slide left and right, and the connection between the middle plate 2 and the right side plate 3 will be locked. In this way, it can prevent the right side plate 3 from being disconnected from the middle plate 2 when the right side plate 3 flips up with the middle plate 2 to rehabilitate the patient, so as to avoid the patient from suddenly losing support when training the right leg, thereby ensuring the safety of the training. When the patient stops training, the middle plate 2 will be reset to be flush with the bottom plate 1, so that the third locking groove 244 and the limiting piece 111 will be unsleeved. Thus, the rack 21 can be restricted to slide left and right. At this time, the training mode of the device can be adjusted.

[0060] It should be further pointed out that when the locking groove of the locking piece 24 is not aligned with the limiting piece 111, the upward flipping of the middle plate 2 will cause the side surface of the locking piece 24 to abut against the limiting piece 111, that is, to limit the upward flipping of the middle plate 2. Conversely, when the locking groove is aligned with the limiting piece 111, the middle plate 2 can be smoothly flipped up. Thus, when adjusting the training mode, the user can try to lift the middle plate 2 to determine whether the training mode is adjusted properly, so as to enable the user to master the adjustment state. In addition, this design can avoid unstable connection between the middle plate 2 and the side plate 3, that is, it can ensure that the rack 21 is inserted in place, thereby further improving the safety of the device.

[0061] Before use, the device is placed flat on the operating bed, and then the middle plate 2 is connected to a device that can drive it to flip up. The pushing mechanism located on the lower side of the middle plate 2 is driven by hydraulic, pneumatic or electric means to flip up the middle plate 2. It can also be a pulling mechanism located on the upper side of the middle plate 2, such as a winch.

[0062] The embodiment takes the winch as an example to introduce the use process of the auxiliary rehabilitation exercise device. The winch is fixed at a high place, and then the pull rope of the winch is fixed at the front end of the middle plate 2. The embodiment is provided with a rope buckle 4 at the front part of the middle plate 2, so as to be connected with the pull rope of the winch. During specific rehabilitation training, the patient lies flat on the device with the face upward, the waist and hips are located on the bottom plate 1, and the legs are respectively placed on the two side plates 3. Then, the training mode of the device is adjusted according to the patient's condition. After the adjustment is completed, the winch is started to pull the middle plate 2 through the pull rope. During the process, the middle plate 2 drives the corresponding side plate 3 to turn up, and the leg of the patient located on the corresponding side plate 3 is lifted together. When the leg is lowered, the winch releases the pull rope, and under the action of gravity, the middle plate 2 and the side plate 3 connected therewith are synchronized to turn down and reset. The leg of the patient lifted is synchronized to be lowered. Such a cycle can lift the leg of the patient to improve the joint activity, promote blood circulation, prevent muscle atrophy and deep vein thrombosis, and effectively improve the lower limb function of the patient with hemiplegia and promote the ability of the patient to walk independently as soon as possible.

[0063] In summary, the auxiliary rehabilitation exercise device for bedridden patients with hemiplegia provided by the present application can assist the patient in leg lifting training, and the training mode can be adjusted according to the patient's condition to adapt to different types of patients with hemiplegia. Through the device, the patient can be assisted in leg lifting training, which can effectively improve the lower limb function of the patient with hemiplegia and promote the ability of the patient to walk independently as soon as possible.

[0064] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. A device for assisting rehabilitation movement of a bedridden hemiplegic patient, characterized by: It includes a bottom plate, a middle plate and two side plates, the side plates are hinged to the front end of the bottom plate, and the middle plate and the two side plates are located on the left and right sides of the middle plate respectively for placing the left and right legs, the middle plate drives the side plates to turn upward for leg lifting training; The front end of the bottom plate is provided with a limiting piece arranged in the longitudinal direction, and the opposite sides of the two side plates are respectively provided with a locking slot; The middle plate is internally provided with a connecting mechanism, the connecting mechanism comprises a rack, a gear, a synchronous belt and a locking piece, the rack is transversely and slidably connected to the middle plate and corresponds to the position of the locking slot, the gear is rotatably connected to the middle plate and is engaged with the rack, the locking piece is rotatably connected to the middle plate and located at the rear side of the gear, the circumferential surface of the locking piece is provided with an annular groove, a plurality of engagement teeth are arranged in an annular array on the inner wall of the annular groove, the synchronous belt is engaged with the engagement teeth and the gear respectively, and the outer periphery of the locking piece is provided with a first locking slot, a second locking slot and a third locking slot which are parallel to the rotation axis of the locking piece; When the bottom plate is flush with the middle plate, the circumferential surface of the locking piece is in a vertical state parallel to the front end surface of the limiting piece, in this state, each locking slot on the locking piece is not sleeved outside the limiting piece, and the rotation of the locking piece will not be restricted; When the first locking slot is aligned with the limiting piece, the left end of the rack will protrude out of the left end of the middle plate, and the right end of the rack will not protrude out of the right end of the middle plate, the rack is only inserted into the locking slot of the left side plate, in this state, the upward turning of the middle plate relative to the bottom plate will make the first locking slot sleeved outside the limiting piece to restrict the rotation of the locking piece; When the second locking slot is aligned with the limiting piece, the left end of the rack will protrude out of the left end of the middle plate, and the right end of the rack will protrude out of the right end of the middle plate, the left and right ends of the rack are inserted into the locking slots of the left and right side plates at the same time, in this state, the upward turning of the middle plate relative to the bottom plate will make the second locking slot sleeved outside the limiting piece to restrict the rotation of the locking piece; When the third locking slot is aligned with the limiting piece, the right end of the rack will protrude out of the right end of the middle plate, and the left end of the rack will not protrude out of the left end of the middle plate, the rack is only inserted into the locking slot of the right side plate, in this state, the upward turning of the middle plate relative to the bottom plate will make the third locking slot sleeved outside the limiting piece to restrict the rotation of the locking piece.

2. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 1, wherein: The middle plate has an assembly groove inside, the rack, the gear, the synchronous belt and the locking piece are arranged in the assembly groove, the left and right ends of the middle plate are respectively provided with a rack sliding groove which is communicated with the assembly groove and is used for the rack to pass through, and the rear end of the middle plate is provided with a limiting piece accommodation slot which is opposite to the limiting piece and is used for the middle plate to extend into.

3. The device for assisting rehabilitation movement of bedridden hemiplegic patient according to claim 2, wherein: The synchronous belt is engaged with the middle part of the gear for transmission, and the middle part of the rack is provided with a synchronous belt accommodation slot matched with the synchronous belt.

4. The device for assisting rehabilitation movement of bedridden hemiplegic patient according to claim 2, wherein: The gear and the locking piece are rotatably connected to the middle plate through first and second rotating shafts respectively.

5. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 2, wherein: The rack upper end is fixedly connected with a push rod penetrating upwardly through the middle plate, and the middle plate is provided with a push rod sliding groove matched with the push rod.

6. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 5, wherein: The push rod is externally sleeved with a flexible rod sleeve.

7. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 2, wherein: The middle plate and the two side plates are hingedly connected to the front end of the bottom plate through hinging assemblies.

8. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 7, characterized in that: The hinging assembly comprises side connecting seats, middle connecting pieces and hinging shafts, the side connecting seats and the hinging shafts are both provided with two, the side connecting seat is provided with a first shaft hole on one side, the first shaft hole does not penetrate the side connecting seat, the middle connecting piece comprises a connecting plate and middle connecting seats, the middle connecting seats are provided with two, the two middle connecting seats are fixedly connected to the left and right ends of the connecting plate, and the two middle connecting seats are both provided with a penetrating second shaft hole; The middle plate is provided with a third shaft hole on the left and right sides, the third shaft hole is a blind hole, the two side plates are both provided with a fourth shaft hole, and the fourth shaft hole is a through hole; The two side connecting seats are fixedly connected to the left and right sides of the front end of the bottom plate, the first shaft holes of the two side connecting seats are oppositely arranged, the middle connecting piece is fixedly connected to the middle of the front end of the bottom plate, the two side plates are respectively assembled between the same side side connecting seat and the same side middle connecting seat, the middle plate is assembled between the two middle connecting seats, and the two hinging shafts penetrate the same side second shaft hole and fourth shaft hole and respectively extend into the same side first shaft hole and third shaft hole.

9. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 8, wherein: The limiting piece is arranged at the front end of the connecting plate.

10. The device for assisting rehabilitation movement of bedridden hemiplegic patients according to claim 1, wherein: The front part of the middle plate is provided with a rope buckle.

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