Nursing bed capable of exercising feet

Abstract

The invention relates to the technical field of nursing equipment, in particular to a nursing bed capable of exercising feet. Comprising a nursing bed body, a frame body used as a supporting foundation, a foot placing mechanism used for placing two feet of a patient, a fixing structure used for fixing the feet of the patient, a driving mechanism used for driving two sets of pedal plates, an adjusting mechanism used for adjusting the size of the foot placing mechanism and a controller used for controlling the rotating speeds of two motors respectively. When a patient uses the nursing bed, the patient lies on the nursing bed body, two feet are placed on the foot placing mechanism, the adjusting mechanism adjusts the fixing structure to change the size of the foot placing mechanism, the feet of the patient are fixed on the foot placing mechanism, and the controller controls the two motors to rotate and adjusts the two motors to proper rotating speeds respectively. The motor drives the foot placing mechanism to reciprocate along the frame body, so that the feet of the patient are hooked and stretched, the feet of the patient are exercised, and the probability of cardiovascular diseases is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of nursing equipment, and in particular to a nursing bed capable of exercising the feet. Background Art

[0002] Patients who are inconvenient to move or the elderly with older age cannot move normally, resulting in the deterioration of the functions of the ankle joints, poor blood circulation, easy to cause varicose veins in the legs, and even suffer from cardiovascular and cerebrovascular diseases. Morning is the concentrated time for the occurrence of cardiovascular and cerebrovascular diseases. Therefore, such people need to perform dorsiflexion and plantar flexion training in bed when getting up in the morning or taking a noon break.

[0003] Dorsiflexion of the foot means that the toes of the foot are maximally hooked, the heel is pushed far away, and the foot and the leg form a hooked shape. Plantar flexion of the foot means that the ankle joint is extended, the instep is arched upward, the toes are pressed downward, and a streamlined shape is formed with the leg.

[0004] However, the current nursing beds provide less care for the feet of patients. It is necessary to use a dorsiflexion and plantar flexion exercise device in cooperation with the nursing bed. However, the existing dorsiflexion and plantar flexion exercise devices are not integrally arranged with the nursing bed, and are prone to move, affecting the nursing exercise of the patient's feet. Moreover, the current speed of dorsiflexion and plantar flexion is slow, and the speed of dorsiflexion and plantar flexion cannot be adjusted. Some patients may have one foot flexible and the other foot clumsy. The existing dorsiflexion and plantar flexion exercise devices cannot achieve a fast movement speed for one foot and a slow movement speed for the other foot, which is not suitable for some patients. In addition, the feet of different patients are of different sizes, and the dorsiflexion and plantar flexion exercise devices do not match the feet of the patients, and are not firmly fixed, and the user's feet may slip out during the dorsiflexion and plantar flexion exercise, affecting the exercise effect of the patient. Summary of the Invention

[0005] In order to improve the matching degree of the device with the patient's feet and the exercise effect, the present invention provides a nursing bed capable of exercising the feet.

[0006] A nursing bed capable of exercising the feet provided by the present invention adopts the following technical solutions: A nursing bed capable of exercising the feet includes: A nursing bed body; A frame body, fixedly connected to the nursing bed body; A foot placement mechanism, provided in two groups, for placing and fixing the two feet of the patient, including a footrest, the footrest is rotatably connected to the frame body, and dorsiflexion and plantar flexion training can be performed after the patient's feet are fixed; The driving mechanism is provided in two groups and is used to drive two groups of foot pedals to rotate along the frame body. Each driving mechanism includes a motor, an eccentric wheel, and a connecting piece; the motor is fixedly connected to the frame body, a transmission rod is arranged at the center of the first end of the eccentric wheel, the eccentric wheel is fixedly connected to the transmission rod, the motor is in transmission connection with the transmission rod, a fixed shaft is arranged at a position away from the center of the second end of the eccentric wheel, the first end of the connecting piece is rotatably connected to the fixed shaft, and the second end of the connecting piece is rotatably connected to the foot pedal; The adjusting mechanism is used to adjust the size of the foot placement mechanism and includes a rotating piece. The rotating piece is arranged inside the foot pedal, and rotating the rotating piece can adjust the size of the foot placement mechanism; The controller is used to separately control the rotational speeds of the two motors. The controller is fixedly connected to the frame body, and the controller is electrically connected to the motors.

[0007] By adopting the above technical solutions, when a patient uses it, he lies flat on the nursing bed body, puts both feet on the foot placement mechanism for fixation, rotates the rotating piece to adjust the foot placement mechanism to a suitable size, operates the controller to control the rotation of the two motors, adjusts the rotational speeds of the two motors, the motor drives the eccentric wheel to rotate, the eccentric wheel rotates to drive the connecting piece to reciprocate back and forth, and then drives the foot pedal to reciprocate with the connecting piece, realizing the dorsiflexion and plantar flexion of the patient's feet. The movement speeds of the two feet can be adjusted, the foot placement mechanism can adjust the size, can adapt to feet of different sizes, is firmly fixed, and there will be no problem of the feet slipping out, and the exercise effect is good.

[0008] Furthermore, a plurality of mounting holes are arranged on the eccentric wheel, the positions of each mounting hole relative to the center of the eccentric wheel are different, the fixed shaft is installed in the mounting hole, and the fixed shaft and the eccentric wheel are detachably fixedly connected.

[0009] By adopting the above technical solutions, the installation position of the fixed shaft can be adjusted. By installing the fixed shaft in different mounting holes, the amplitude of the reciprocating movement angle of the foot pedal can be adjusted to meet the needs of different people.

[0010] Furthermore, the foot placement mechanism further includes a fixing structure. The fixing structure includes a movable piece and a limiting piece. A receiving cavity is arranged on the side of the movable piece close to the limiting piece. The receiving cavity can accommodate the upper half of the patient's foot. Both the movable piece and the limiting piece are arranged on the upper part of the foot pedal. The movable piece is arranged at one end of the foot pedal, the limiting piece is arranged at the end of the foot pedal away from the movable piece, the movable piece is slidably connected to the foot pedal, and the limiting piece is fixedly connected to the foot pedal; a first connecting block is arranged at the lower part of the foot pedal, and the first connecting block is rotatably connected to the connecting piece.

[0011] By adopting the above technical solution, the user places the foot on the footrest. The front half of the foot extends into the movable member, and the heel contacts the limiting member. Adjust the position of the movable sliding member until it fits the size of the patient's foot. It can adapt to feet of different sizes by adjusting the movable member, with firm fixation and reduced probability of the foot slipping out during exercise for the patient.

[0012] Furthermore, an opening is provided on the side of the movable member away from the footrest. At least one fixing strap is provided on the movable member on one side of the opening. The inner side of the fixing strap is provided with Velcro, and the corresponding Velcro is provided on the footrest on the other side of the opening.

[0013] By adopting the above technical solution, after the patient puts the foot into the movable member, the fixing strap can increase the matching degree between the movable member and the patient's foot, and thus better fix the patient's foot.

[0014] Furthermore, a T-shaped block is provided at the bottom of the movable member, and a T-shaped groove is provided at the corresponding position on the upper part of the footrest. The T-shaped block is arranged in the T-shaped groove, and the movable member can slide on the footrest.

[0015] By adopting the above technical solution, the T-shaped block is arranged in the T-shaped groove, and the T-shaped block can move within the track of the T-shaped groove, which plays a limiting role on the T-shaped block and improves the sliding stability of the movable member on the footrest.

[0016] Furthermore, the adjusting mechanism further includes a protruding block and a rack. The protruding block is fixedly connected to the bottom of the footrest. A groove is provided on the side of the protruding block away from the footrest, and the groove communicates with the bottom of the T-shaped groove. The rack is arranged at the bottom of the T-shaped block and is fixedly connected to the T-shaped block. The rotating member includes a gear, a connecting rod, and an operating part. The gear is fixedly connected to the first end of the connecting rod, and the operating part is fixedly connected to the second end of the connecting rod. The gear is arranged in the groove of the protruding block, and the gear meshes with the rack. The connecting rod extends out of the protruding block, and the connecting rod is rotatably connected to the protruding block. The operating part is located outside the protruding block.

[0017] By adopting the above technical solution, rotate the operating part, the connecting rod drives the gear to rotate, the gear drives the rack to move, and the movable member moves in the direction of approaching or departing from the limiting member, realizing the adjustment of the space size on the footrest. The operation is simple and convenient, ensuring that the foot placement mechanism can adapt to patients with feet of different sizes.

[0018] Furthermore, a fixing groove is provided inside the groove of the protruding block. The fixing groove is provided on the side of the groove away from the operating part, and the fixing groove is coaxial with the gear. The shape of the fixing groove is the same as that of the gear, and the gear can extend into the fixing groove to achieve fixation. The depth of the tooth groove is less than the width of the gear.

[0019] By adopting the above technical solution, after adjusting the movable part to a proper position, push the operation part to push the gear into the fixed slot. At this time, a part of the gear meshes with the rack at the bottom of the movable part, and the other part cannot rotate in the fixed slot, thus realizing the fixation of the movable part.

[0020] Further, a baffle is arranged on the connecting rod. The baffle is located in the groove of the convex block, and a spring is arranged between the baffle and the inner side wall of the convex block.

[0021] By adopting the above technical solution, under the elastic force of the spring, the gear can automatically enter the fixed slot. When adjusting the position of the movable part, pull out the operation part a certain distance. After pulling out, the gear disengages from the fixed slot. Rotate the operation part, and the rotation of the gear can drive the movable part to move towards or away from the limiting part. After adjusting to a proper position, push the operation part inward. After pushing in, the gear enters the fixed slot to achieve fixation. The above setting reduces the probability of the gear disengaging from the fixed slot during the exercise of dorsiflexion and plantar flexion of the foot, and at the same time improves the convenience of operation.

[0022] Further, the frame body includes a bottom plate and two groups of brackets. Each group of brackets is set as a first bracket and a second bracket. An connecting rod is arranged between the first bracket and the second bracket. The two ends of the connecting rod are respectively fixedly connected with the first bracket and the second bracket. A plurality of second connecting blocks are arranged at the bottom of the foot pedal. Through holes adapted to the connecting rod are arranged on the second connecting blocks, and the connecting rod passes through the second connecting blocks, and the second connecting blocks are rotationally connected with the connecting rod.

[0023] By adopting the above technical solution, the foot pedal is rotationally connected with the connecting rods on the first bracket and the second bracket. When the patient's foot is placed on the foot pedal, the action of dorsiflexion and plantar flexion of the foot can be realized, which is helpful for the patient's rehabilitation and prevents cardiovascular and cerebrovascular diseases.

[0024] Further, a display screen, a switch and two speed adjustment buttons are arranged on the controller.

[0025] By adopting the above technical solution, the display screen can display the current movement frequency of dorsiflexion and plantar flexion of the foot. The two speed adjustment buttons can respectively adjust the rotation speeds of the two motors, and then change the movement frequency of the foot pedal, which can be suitable for patients with different needs and improve the rationality of the exercise.

[0026] Further, a support frame is arranged between the motor and the eccentric wheel. The support frame is fixedly connected to the bottom plate. A bearing is arranged in the support frame, and the transmission rod passes through the bearing in the support frame.

[0027] By adopting the above technical solution, the support frame plays a supporting role for the transmission rod, improving the stability of the transmission between the motor and the eccentric wheel.

[0028] In summary, the present invention includes at least one of the following beneficial technical effects: 1. By providing two motors to drive two eccentric wheels, which in turn drive two foot pedals, the motor drives the eccentric wheel to rotate. The rotation of the eccentric wheel drives the connecting piece to reciprocate back and forth, and then drives the foot pedal to reciprocate with the connecting piece, realizing the flexion and extension of the patient's feet. The movement speeds of the two feet can be adjusted independently, which is suitable for patients with different degrees of flexibility in their two feet.

[0029] 2. By providing that the position of the fixed shaft on the eccentric wheel is adjustable, the installation position of the fixed shaft can be adjusted. By installing the fixed shaft in different mounting holes, the amplitude of the reciprocating movement angle of the foot pedal can be adjusted to meet the needs of different people.

[0030] 3. Through the provision of a fixing structure and an adjusting mechanism, the user places the foot on the foot pedal, the front half of the foot extends into the movable piece, and the heel contacts the limiting piece. Adjust the position of the movable sliding piece until it fits the size of the patient's foot. It is possible to adapt to feet of different sizes by adjusting the movable piece, with firm fixation, reducing the probability of the patient's foot slipping out during exercise; rotating the operating part, the connecting rod drives the gear to rotate, and the gear drives the rack to move, and the movable piece moves in the direction of approaching or leaving the limiting piece, realizing the adjustment of the space size on the foot pedal, with simple operation.

[0031] 4. By fixedly connecting the nursing bed body and the frame, it is ensured that the frame will not move on the nursing bed when the patient is using it, improving the nursing effect on the patient's feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the whole application; Figure 2 is a schematic structural diagram of the first perspective of the frame of the application and the cooperation of other mechanisms on the frame; Figure 3 is a schematic structural diagram of the second perspective of the frame of the application and the cooperation of other mechanisms on the frame; Figure 4 is a schematic structural diagram of the frame of the application; Figure 5 is a schematic structural diagram of the eccentric wheel of the application; Figure 6 is a schematic structural diagram of the first perspective of the cooperation of the foot placement mechanism and the adjustment mechanism of the application; Figure 7 is a schematic structural diagram of the second perspective of the cooperation of the foot placement mechanism and the adjustment mechanism of the application; Figure 8 is a schematic structural diagram of the movable piece of the application; Figure 9 is a schematic cross-sectional structural diagram of the foot pedal of the application; Figure 10 It is a schematic structural diagram of the rotating part of the present application; Reference numerals: 100, nursing bed body; 110, bottom plate; 120, first bracket; 130, second bracket; 140, connecting rod; 150, second connecting block; 210, motor; 220, transmission rod; 230, eccentric wheel; 240, connecting member; 250, fixed shaft; 260, mounting hole; 270, support frame; 310, footrest; 320, fixing structure; 321, movable member; 322, limiting member; 323, fixing belt; 324, T-shaped block; 325, T-shaped groove; 330, first connecting block; 410, rotating part; 411, gear; 412, connecting rod; 413, operating part; 420, protruding block; 430, rack; 440, fixing groove; 450, baffle; 460, spring; 500, controller; 510, display screen; 520, switch; 530, speed adjustment button. Detailed implementation manners

[0033] The technical solutions in the embodiments of the present invention are clearly and completely described below through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Without conflict, the features in the following embodiments and the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] The following is combined with Figures 1 to 10 to further elaborate on the present invention.

[0035] This embodiment discloses a nursing bed capable of exercising the feet. Referring to Figure 1 , it includes a nursing bed body 100, a frame for serving as a support foundation, a foot placement mechanism for placing the two feet of the patient, a fixing structure 320 for fixing the patient's feet, a driving mechanism for driving two groups of footrests 310, an adjusting mechanism for adjusting the size of the foot placement mechanism, and a controller 500 for separately controlling the rotation speeds of two motors 210; when the patient uses it, lies flat on the nursing bed body 100, puts the two feet on the foot placement mechanism, the adjusting mechanism adjusts the fixing structure 320 to change the size of the foot placement mechanism, fixes the patient's feet on the foot placement mechanism, the controller 500 controls the two motors 210 to rotate and separately adjusts the two motors 210 to appropriate rotation speeds, and the motors 210 drive the foot placement mechanism to reciprocate along the frame, realizing the dorsiflexion and plantar flexion of the patient's feet, exercising the patient's feet, and reducing the probability of cardiovascular diseases.

[0036] Preferably, the nursing bed body 100 and the frame are connected by bolts. The frame can be disassembled from the nursing bed body 100, which is convenient for installation and maintenance.

[0037] Refer to Figures 2 - 4 , in this embodiment, the foot placement mechanism is arranged in two groups, including a footrest 310. The footrest 310 is rotatably connected to the frame. After the patient's feet are fixed, dorsiflexion and plantar flexion training can be carried out; the frame includes a bottom plate 110 and two groups of brackets. Each group of brackets is set as a first bracket 120 and a second bracket 130. A connecting rod 140 is arranged between the first bracket 120 and the second bracket 130. Both ends of the connecting rod 140 are fixedly connected to the first bracket 120 and the second bracket 130 respectively. A plurality of second connecting blocks 150 are arranged at the bottom of the footrest 310. Through holes adapted to the connecting rod 140 are arranged on the second connecting blocks 150. The connecting rod 140 passes through the second connecting blocks 150, and the second connecting blocks 150 are rotatably connected to the connecting rod 140; preferably, the bottom plate 110 is set as a rectangular plate, the lower parts of the first bracket 120 and the second bracket 130 are set as rectangular blocks, and the upper parts are set as triangular blocks. The top of the triangular block is fixedly connected to the connecting rod 140.

[0038] In this way, the footrest 310 is rotatably connected to the connecting rod 140 on the first bracket 120 and the second bracket 130. When the patient's feet are placed on the footrest 310, the dorsiflexion and plantar flexion actions can be realized, which helps the patient's recovery and prevents cardiovascular and cerebrovascular diseases.

[0039] Refer to Figure 3 , 6, 8, in this embodiment, the fixing structure 320 includes a movable member 321 and a limiting member 322. A receiving cavity is arranged on the side of the movable member 321 close to the limiting member 322. The receiving cavity can accommodate the upper half of the patient's foot. Both the movable member 321 and the limiting member 322 are arranged on the upper part of the footrest 310. The movable member 321 is arranged at one end of the footrest 310, and the limiting member 322 is arranged at the end of the footrest 310 far from the movable member 321. The movable member 321 is slidably connected to the footrest 310, and the limiting member 322 is fixedly connected to the footrest 310. A first connecting block 330 is arranged at the lower part of the footrest 310; a slope is arranged on the inner side surface of the connection part between the movable member 321 and the footrest 310; a T-shaped block 324 is arranged at the bottom of the movable member 321, and a T-shaped groove 325 is arranged at the corresponding position on the upper part of the footrest 310. The T-shaped block 324 is arranged in the T-shaped groove 325, and the movable member 321 can slide on the footrest 310. The limiting member 322 is an arc plate, and the radian direction of the arc plate is away from the movable plate. A soft pad is arranged on the side surface of the arc plate close to the movable plate. The back part of the patient's foot can be attached to the limiting member 322.

[0040] In this way, the user places the foot on the footrest 310. The front half of the foot extends into the movable member 321. The ramp provided inside the movable member 321 reduces the discomfort of the patient's foot. The rear part of the foot contacts the limiting member 322. The position of the sliding member is adjusted until it fits the size of the patient's foot. The movable member 321 can be adjusted to adapt to feet of different sizes, with firm fixation, reducing the probability of the patient's foot slipping out during exercise. The T-shaped block 324 is arranged in the T-shaped groove 325. The T-shaped block 324 can move within the track of the T-shaped groove 325, which plays a role in limiting the T-shaped block 324 and improving the sliding stability of the movable member 321 on the footrest 310.

[0041] Referring to Figure 6 , in this embodiment, an opening is provided on the side of the movable member 321 away from the footrest 310. At least one fixing strap 323 is provided on the movable member 321 on one side of the opening. The inner side of the fixing strap 323 is provided with a magic tape, and a matching magic tape is provided on the footrest 310 on the other side of the opening. In another embodiment, shoelaces can also be provided on both sides of the opening.

[0042] In this way, after the patient puts the foot into the movable member 321, the fixing strap 323 tightens the patient's foot, and the magic tape is used for fixation, playing a role in fixing the patient's foot in the width direction. By providing the fixing strap 323, the matching degree between the movable member 321 and the patient's foot can be increased, and thus the patient's foot can be fixed better.

[0043] Referring to Figures 7 - 10 , in this embodiment, the adjusting mechanism includes a rotating member 410, a protruding block 420 and a rack 430. Part of the rotating member 410 is arranged inside the protruding block 420. The protruding block 420 is fixedly connected to the bottom of the footrest 310. A groove is provided on the side of the protruding block 420 away from the footrest 310. The groove communicates with the bottom of the T-shaped groove 325. The rack 430 is arranged at the bottom of the T-shaped block 324 and is fixedly connected to the T-shaped block 324. The rotating member 410 includes a gear 411, a connecting rod 412 and an operating part 413. The gear 411 is fixedly connected to the first end of the connecting rod 412, and the operating part 413 is fixedly connected to the second end of the connecting rod 412. The gear 411 is arranged in the groove of the protruding block 420, and the gear 411 meshes with the rack 430. The connecting rod 412 extends out of the protruding block 420, and the connecting rod 412 is rotatably connected to the protruding block 420. The operating part 413 is located outside the protruding block 420.

[0044] A fixing groove 440 is provided inside the groove of the protruding block 420. The fixing groove 440 is provided on the side of the groove away from the operating part 413. The fixing groove 440 is coaxial with the gear 411. The shape of the fixing groove 440 is the same as the shape of the gear 411. The gear 411 can extend into the fixing groove 440 to achieve fixation. The depth of the tooth groove is less than the width of the gear 411.

[0045] A baffle 450 is provided on the connecting rod 412. The baffle 450 is located in the groove of the protruding block 420, and a spring 460 is provided between the baffle 450 and the inner side wall of the protruding block 420.

[0046] In this way, manually rotate the operating part 413. The operating part 413 drives the connecting rod 412 to rotate. The connecting rod 412 drives the gear 411 to rotate. The gear 411 drives the rack 430 to move. The movable part 321 moves in the direction close to or away from the limiting part 322, realizing the fixation in the length direction of the patient's foot. The operation is simple, ensuring that the foot placement mechanism can adapt to patients with different foot sizes, the fixation is firm, and there will be no problem that the patient's foot slips out during exercise, and the exercise effect is good.

[0047] After adjusting the movable part 321 to a suitable position, push the operating part 413 to push the gear 411 into the fixing groove 440. At this time, a part of the gear 411 meshes with the rack 430 at the bottom of the movable part 321, and the other part cannot rotate in the fixing groove 440, thus realizing the fixation of the movable part 321.

[0048] Under the elastic force of the spring 460, the gear 411 can automatically enter the fixing groove 440. When adjusting the position of the movable part 321, pull out the operating part 413 by a certain distance. After pulling out, the gear 411 disengages from the fixing groove 440. Rotate the operating part 413, and the rotation of the gear 411 can drive the movable part 321 to move in the direction close to or away from the limiting part 322. After adjusting to a suitable position, push the operating part 413 inward. After pushing in, the gear 411 enters the fixing groove 440 to achieve fixation. The above settings reduce the probability of the gear 411 disengaging from the fixing groove 440 during the ankle dorsiflexion and plantar flexion exercise, and at the same time improve the operation convenience.

[0049] Refer to Figure 2 As shown in FIGS. 4-5, in this embodiment, two sets of driving mechanisms are provided. The two sets of driving mechanisms are respectively connected to the two sets of foot placement mechanisms. Each set of driving mechanisms includes a motor 210, an eccentric wheel 230 and a connecting member 240; the motor 210 is fixedly connected to the frame body. A transmission rod 220 is provided at the center of the first end of the eccentric wheel 230, and the eccentric wheel 230 is fixedly connected to the transmission rod 220. The motor 210 is in transmission connection with the transmission rod 220. A fixed shaft 250 is provided at a position away from the center of the second end of the eccentric wheel 230. The first end of the connecting member 240 is rotatably connected to the fixed shaft 250, and the second end of the connecting member 240 is rotatably connected to the first connecting block 330 of the foot pedal 310; a support frame 270 is provided between the motor 210 and the eccentric wheel 230. The support frame 270 is fixedly connected to the bottom plate 110. A bearing is provided in the support frame 270, and the transmission rod 220 passes through the bearing of the support frame 270.

[0050] Thus, the rotation of the motor 210 drives the eccentric wheel 230 to rotate. The rotation of the eccentric wheel 230 drives the connecting member 240 to reciprocate back and forth, thereby driving the foot pedal 310 to reciprocate along with the connecting member 240, realizing the dorsiflexion and plantarflexion exercises of the patient's feet.

[0051] Referring to Figure 5 , in this embodiment, a plurality of mounting holes 260 are provided on the eccentric wheel 230. The positions of each mounting hole 260 from the center of the eccentric wheel 230 are different. The fixed shaft 250 is installed in the mounting hole 260, and the fixed shaft 250 and the eccentric wheel 230 are detachably fixedly connected. Preferably, threaded holes are provided on the side walls of each mounting hole 260, and fixing bolts are provided in the threaded holes. After the fixed shaft 250 is installed in the mounting hole 260, the fixing bolts can be tightened to fix the fixed shaft 250 in the mounting hole 260, realizing the fixation of the fixed shaft 250.

[0052] In this way, the installation position of the fixed shaft 250 can be adjusted. By installing the fixed shaft 250 in different mounting holes 260, the amplitude of the reciprocating movement angle of the foot pedal 310 can be adjusted to meet the needs of different people.

[0053] Referring to Figures 2 - 3 , in this embodiment, the controller 500 is used to separately control the rotation speeds of the two motors 210. The controller 500 is fixedly connected to the frame body, and the controller 500 is electrically connected to the motors 210; a display screen 510, a switch 520 and two speed adjustment buttons 530 are provided on the controller 500.

[0054] In this way, the display screen 510 can display the current movement frequency of dorsiflexion and plantarflexion. The two speed adjustment buttons 530 can respectively adjust the rotation speeds of the two motors 210, thereby changing the movement frequency of the foot pedal 310, being applicable to patients with different needs, and improving the rationality of the exercise.

[0055] The implementation principle of the present invention is as follows: When in use, the patient lies flat on the nursing bed body 100, puts both feet on the foot placement mechanism, the adjustment mechanism adjusts the fixing structure 320 to change the size of the foot placement mechanism, fixes the patient's feet on the foot placement mechanism, the controller 500 controls the two motors 210 to rotate and respectively adjusts the two motors 210 to appropriate rotation speeds, and the motors 210 drive the foot placement mechanism to reciprocate along the frame body, realizing the dorsiflexion and plantarflexion of the patient's feet, exercising the patient's feet, and reducing the probability of cardiovascular diseases.

[0056] The user places the foot on the footrest 310. The front half of the foot extends into the movable part 321. The slope provided inside the movable part 321 reduces the discomfort of the patient's foot. The back part of the foot contacts the limiting part 322. After the patient puts the foot into the movable part 321, the fixing strap 323 tightens the width direction of the patient's foot, and the Velcro is used for fixation, which plays a role in fixing the width direction of the patient's foot. By setting the fixing strap 323, the matching degree between the movable part 321 and the patient's foot can be increased, and thus the patient's foot can be fixed better.

[0057] Manually rotate the operating part 413. The operating part 413 drives the connecting rod 412 to rotate. The connecting rod 412 drives the gear 411 to rotate. The gear 411 drives the rack 430 to move. The movable part 321 moves towards the direction close to the limiting part 322, tightening the patient's foot, achieving the fixation in the length direction of the patient's foot. The operation is simple, ensuring that the foot placement mechanism can adapt to patients with different foot sizes, with firm fixation and no problem of the patient's foot slipping out during exercise, and good exercise effect.

[0058] After adjusting the movable part 321 to the appropriate position, push the operating part 413 to push the gear 411 into the fixing slot 440. At this time, a part of the gear 411 meshes with the rack 430 at the bottom of the movable part 321, and the other part cannot rotate in the fixing slot 440, thus realizing the fixation of the movable part 321.

[0059] Under the elastic force of the spring 460, the gear 411 can automatically enter the fixing slot 440. When adjusting the position of the movable part 321, pull the operating part 413 outwards for a certain distance. After pulling out, the gear 411 disengages from the fixing slot 440. Rotate the operating part 413, and the rotation of the gear 411 can drive the movable part 321 to move towards or away from the limiting part 322. After adjusting to the appropriate position, push the operating part 413 inwards. After pushing in, the gear 411 enters the fixing slot 440 to achieve fixation. The above settings reduce the probability of the gear 411 slipping out of the fixing slot 440 during the exercise of dorsiflexion and plantarflexion of the foot, and at the same time improve the convenience of operation.

[0060] The display screen 510 can display the current movement frequency of dorsiflexion and plantarflexion of the foot. The two speed adjustment buttons 530 can respectively adjust the rotation speeds of the two motors 210, and thus change the movement frequency of the footrest 310, which can be applicable to patients with different needs and improve the rationality of exercise.

[0061] The installation position of the fixed shaft 250 can be adjusted. By installing the fixed shaft 250 in different installation holes 260, the amplitude of the reciprocating movement angle of the footrest 310 can be adjusted to meet the needs of different people.

[0062] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A nursing bed capable of exercising the feet, characterized in that Including: The nursing bed body; The frame body, fixedly connected to the nursing bed body; The foot placement mechanism, provided in two groups, for placing and fixing the two feet of the patient, including a footrest, and the footrest is rotatably connected to the frame body; The driving mechanism, provided in two groups, for driving the two groups of footrests to rotate along the frame body. Each group of driving mechanisms includes a motor, an eccentric wheel and a connecting member; the motor is fixedly connected to the frame body, a transmission rod is provided at the center of the first end of the eccentric wheel, the eccentric wheel is fixedly connected to the transmission rod, the motor is in transmission connection with the transmission rod, a fixed shaft is provided at a position away from the center of the second end of the eccentric wheel, the first end of the connecting member is rotatably connected to the fixed shaft, and the second end of the connecting member is rotatably connected to the footrest; The adjusting mechanism, for adjusting the size of the foot placement mechanism, including a rotating member, and a part of the rotating member is arranged inside the footrest, and the rotating member is rotatably connected to the footrest; The controller, for separately controlling the rotation speeds of the two motors, the controller is fixedly connected to the frame body, and the controller is electrically connected to the motors.

2. The foot-exercising nursing bed according to claim 1, characterized in that, A plurality of mounting holes are provided on the eccentric wheel, and the positions of each mounting hole from the center of the eccentric wheel are different. The fixed shaft is installed in the mounting hole, and the fixed shaft and the eccentric wheel are detachably fixedly connected.

3. The foot-exercising nursing bed according to claim 1, characterized in that The foot placement mechanism further includes a fixing structure, and the fixing structure includes a movable member and a limiting member. A receiving cavity is provided on the side of the movable member close to the limiting member, and the receiving cavity can receive the upper half of the patient's foot. The movable member and the limiting member are both arranged on the upper part of the footrest. The movable member is arranged at one end of the footrest, and the limiting member is arranged at the end of the footrest away from the movable member. The movable member is slidably connected to the footrest, and the limiting member is fixedly connected to the footrest; a first connecting block is provided at the lower part of the footrest, and the first connecting block is rotatably connected to the connecting member.

4. The foot-exercising nursing bed according to claim 3, wherein, An opening is provided on the side of the movable member away from the footrest, at least one fixing belt is provided on the movable member on one side of the opening, a magic tape is provided on the inner side of the fixing belt, and a matching magic tape is provided on the footrest on the other side of the opening.

5. The foot-exercising nursing bed according to claim 3, characterized in that, A T-shaped block is provided at the bottom of the movable member, and a T-shaped groove is provided at the corresponding position on the upper part of the footrest. The T-shaped block is arranged in the T-shaped groove, and the movable member can slide on the footrest.

6. The foot-exercising nursing bed according to claim 5, characterized in that, The adjusting mechanism further includes a raised block and a rack. The raised block is fixedly connected to the bottom of the footrest. A groove is provided on the side of the raised block away from the footrest, and the groove communicates with the bottom of the T-shaped groove. The rack is arranged at the bottom of the T-shaped block, and the rack is fixedly connected to the T-shaped block. The rotating member includes a gear, a connecting rod and an operating part. The gear is fixedly connected to the first end of the connecting rod, and the operating part is fixedly connected to the second end of the connecting rod. The gear is arranged in the groove of the raised block, the gear meshes with the rack, the connecting rod extends out of the raised block, the connecting rod is rotatably connected to the raised block, and the operating part is located outside the raised block.

7. The foot-exercising nursing bed according to claim 6, characterized in that, A fixing groove is arranged inside the groove of the raised block. The fixing groove is arranged on the side of the groove away from the operation part. The fixing groove is coaxial with the gear. The shape of the fixing groove is the same as that of the gear. The gear can extend into the fixing groove to achieve fixation. The depth of the tooth groove is less than the width of the gear.

8. The foot-exercising nursing bed according to claim 7, characterized in that, A baffle is arranged on the connecting rod. The baffle is located inside the groove of the raised block. A spring is arranged between the baffle and the inner side wall of the raised block.

9. The foot-exercising nursing bed according to claim 1, characterized in that The frame body includes a bottom plate and two groups of brackets. Each group of brackets is set as a first bracket and a second bracket. A connecting rod is arranged between the first bracket and the second bracket. The two ends of the connecting rod are respectively fixedly connected with the first bracket and the second bracket. A plurality of second connecting blocks are arranged at the bottom of the foot pedal. Through holes adapted to the connecting rod are arranged on the second connecting blocks. The connecting rod passes through the second connecting blocks. The second connecting blocks are rotationally connected with the connecting rod.

10. The foot-exercising nursing bed according to any one of claims 1-9, characterized in that, A display screen, a switch and two speed adjustment buttons are arranged on the controller.

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