Auxiliary traction and exercise equipment for postoperative lower limb rehabilitation

Abstract

The invention relates to the technical field of postoperative rehabilitation exercise equipment, in particular to postoperative lower limb rehabilitation auxiliary traction and exercise equipment which comprises a fixing device and a driving device placed above the fixing device, a lying vehicle is fixedly installed on the top face of a placing flat plate, and a power transmission part is arranged on the horizontal line behind the lying vehicle; placing devices are arranged below the two wheels, and a transmission device is arranged between the two mounting discs and the traction part. According to the auxiliary traction and exercise equipment for postoperative lower limb rehabilitation, a motor in the driving device is started to drive a rotating rod to rotate so as to drive a limiting wheel to rotate, so that wheels are driven to rotate, and pedals in the recumbent vehicle can be driven to rotate through chain transmission; a patient can lie in the seat with a certain inclination angle in the initial stage of the operation, the lower limb joints of the patient can be passively dragged under the driving of the driving device, and rehabilitation training of the lower limbs is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of postoperative rehabilitation training equipment, and in particular to an auxiliary traction and training equipment for postoperative lower limb rehabilitation. Background Art

[0002] During the recovery process of lower limb injuries, long-term lack of exercise in the lower limbs will lead to muscle atrophy and affect blood circulation. At this time, patients need to undergo lower limb rehabilitation training, which is an important means to help patients recover lower limb function, promote muscle strength recovery, help patients recover joint activity and ultimately recover lower limb walking, climbing stairs and other daily living abilities.

[0003] The patent with authorization announcement number CN217311002U discloses a lower limb rehabilitation training device, including a support frame, on which a simulated walking component is arranged, the simulated walking component includes two support seats, a support slide bar is arranged between the two support seats, and two sliding plates are sleeved on the support slide bar. The rear end of each sliding plate is slidably connected to the support slide bar, and the front end of each sliding plate is connected to a joint support. It can be adaptively adjusted according to the hip width, hip thickness, and leg length of the human body, accurately adapt to the user's body shape, ensure the uniformity of gait movement, and can also achieve elastic compensation for hip width and free rotation of foot pedals to adapt to different personal walking habits.

[0004] The above technical solutions and existing technologies all require patients to stand inside the rehabilitation device. It usually takes at least two months for patients to stand on their own after surgery. During this period, the patient's lower limbs can only be massaged manually, which cannot effectively and standardizedly drive the movement of the patient's lower limbs. In addition, when patients use rehabilitation equipment for training, they need to repeat a single action. After long-term training, the patient's enthusiasm for using rehabilitation equipment will be reduced. At the same time, as the patient's lower limbs continue to recover, the patient also needs to switch from passive lower limb movement to active lower limb movement. In view of this, we propose an auxiliary traction and exercise device for postoperative lower limb rehabilitation.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide an auxiliary traction and exercise device for postoperative lower limb rehabilitation to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: An auxiliary traction and exercise device for postoperative lower limb rehabilitation, comprising a fixing device and a driving device placed above the fixing device, wherein the fixing device comprises two fixing bases arranged opposite to each other, a fixing shell welded and fixed between the two fixing bases, a traction part arranged between the two fixing bases, and a placement plate arranged above the traction part; The traction part includes a water storage tank body, two sealing rings arranged on the rear side wall of the water storage tank body, a gas separation membrane arranged on the rear side wall of the water storage tank body near the top through groove, an electric push rod arranged on the inner side wall of the water storage tank body, a movable push plate arranged on the telescopic rod of the electric push rod, and a piston plate arranged on the rear side wall of the movable push plate; A lying car is fixedly installed on the top surface of the placement flat plate, and a power transmission part is arranged on the rear horizontal line of the lying car; The power transmission part includes a rotating shaft, two rear sprockets arranged on the outer side wall of the rotating shaft, an annular plate arranged on the horizontal lines on the left and right sides of the rear sprockets, wheels arranged on the left and right ends of the rotating shaft, and a mounting plate arranged on the outer end of the wheel connecting shaft; A placing device is provided below the two wheels, and the placing device comprises a fixed bottom plate, a placing frame arranged on the top surface of the fixed bottom plate, two rotating rods rotatably connected between the placing frames, and a limiting wheel sleeved on the outside of the rotating rod; A transmission device is provided between the two mounting plates and the traction part, and the transmission device includes a docking plate, a limiting rod arranged on the outer wall of the docking plate, a connecting rod slidably connected to the inside of the limiting rod, a movable bracket arranged at the bottom end of the connecting rod, a plurality of pulleys arranged on the bottom surface of the movable bracket, a connecting plate arranged between the two movable brackets, a plurality of fixed rods arranged on the outer wall of the connecting plate, and a resistance plate arranged at the ends of the plurality of fixed rods.

[0008] In the technical solution of the present invention, the sealing ring is fixed to the outer wall of the water storage tank body by strong glue, the gas separation membrane is fixedly connected to the inner groove wall of the rear side wall of the water storage tank body near the top through groove by screws, the electric push rod is fixedly connected to the inner wall of the water storage tank body by screws, the movable push plate is fixedly connected to the end of the telescopic rod of the electric push rod by bolts, the piston plate is fixedly bonded to the movable push plate by strong glue, the placement plate is fixedly connected to the top surface of the fixed base by bolts, and the top surface of the placement plate is provided with plate body through grooves that penetrate up and down and are closed at both ends near the left and right ends, and the top surface of the placement plate is provided with plate surface sliding grooves on the left and right sides of the plate body through groove.

[0009] In the technical solution of the present invention, the reclining car includes a fixed body, a front bracket fixedly connected to the top of the front end of the fixed body by bolts, a support rod fixedly connected to the front end of the front bracket by bolts, a front gear plate rotatably connected to the bottom position of the front end of the fixed body, foot pedals fixedly connected to the outer walls of the left and right ends of the front gear plate by bolts, a handle portion arranged above the fixed body, and a seating portion arranged on the horizontal line behind the fixed body.

[0010] In the technical solution of the present invention, the handle portion includes several groups of fixed brackets welded and fixed on the top surface of the fixed vehicle body, a movable sleeve rotatably connected to the inside of the fixed bracket through a transmission rod, an extension rod rotatably connected to the inside of the movable sleeve, a handle fixedly connected to the outer wall of the extension rod by bolts, and a smart tablet fixed above the extension rod by a snap-fit ​​connection.

[0011] In the technical solution of the present invention, the seating portion includes a rear bracket fixedly connected to the outer wall of the rear end of the fixed vehicle body by bolts, a mounting bracket welded and fixed to the top surface of the rear bracket and having a triangular longitudinal cross-section, two sets of transition gear plates rotatably connected to the outer walls of the left and right ends of the T-shaped frame below the rear bracket, and a seat fixedly connected to the top surface of the mounting bracket by bolts.

[0012] In the technical solution of the present invention, the rotating shaft is rotatably connected to the inside of the annular bearing behind the rear bracket, the rear sprocket is fixedly connected to the outer wall of the rotating shaft by a bayonet pin, the annular plate is fixedly clamped on the outer wall of the rotating shaft, the wheel is rotatably connected to the ends on both sides of the rotating shaft by a hub, and the mounting plate is fixedly connected to the outer wall of the wheel connecting shaft near the end by bolts.

[0013] In the technical solution of the present invention, the fixed base plate is fixedly connected to the top surface of the fixed base by bolts, the longitudinal cross-section of the placement rack is an isosceles trapezoid and is integrally formed with the fixed base plate, and the limiting wheel is fixedly connected to the outer wall of the rotating rod by a bayonet pin.

[0014] In the technical solution of the present invention, the driving device includes a control main board fixedly connected to the top surface of the fixed base by screws, a motor fixedly connected to the inside of the groove on the side wall of the control main board by screws, a speed sensor fixedly connected to the outer wall of the motor by screws, and a signal transmission module fixedly connected to the inside of the groove on the top surface of the control main board by screws, and the output shaft of the motor is coaxially connected to the rotating rod.

[0015] In the technical solution of the present invention, the docking plate is fixedly connected to the outer wall of the mounting plate by bolts, the limiting rod is integrally formed with the docking plate, the bottom end of the connecting rod is rotatably connected to the movable bracket, the pulley is slidably engaged with the bottom surface of the movable bracket, the size of the pulley is adapted to the size of the board slide groove, and the bottom surface of the movable bracket is integrally formed with a solid protrusion that passes through the board body through groove.

[0016] In the technical solution of the present invention, the longitudinal cross-section of the connecting plate is concave and is welded and fixed to the solid protrusion on the bottom surface of the movable bracket. The fixing rod is clamped and fixed to the outer wall of the connecting plate. The resistance plate is fixed to the end of the fixing rod by bolts. The resistance plate is slidably connected to the inside of the water storage tank body. The size of the resistance plate is adapted to the internal size of the water storage tank body. A number of plate through holes distributed in a matrix manner, with an isosceles trapezoidal longitudinal cross-section and interconnected are provided on the front and rear end side walls of the resistance plate.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation starts the motor in the driving device, drives the rotation of the rotating rod and then drives the rotation of the limiting wheel, thereby driving the rotation of the wheel. Through chain transmission, the foot pedal in the reclining car can be driven to rotate, so that the patient can lie in a seat with a certain inclination in the early stage after surgery and passively pull his own lower limb joints under the drive of the driving device, thereby realizing lower limb rehabilitation training.

[0018] 2. This auxiliary traction and exercise equipment for postoperative lower limb rehabilitation is that the patient pedals on his own in a reclining car, and the chain drives the wheels to rotate inside the placement device. The speed of the patient's pedaling is transmitted to the smart tablet in the handle through the speed sensor and signal transmission module in the drive device, and the racing game in the smart tablet allows patients to perform rehabilitation training in the mid-term after surgery while increasing the fun of rehabilitation training and the enthusiasm of patients to use the equipment for rehabilitation.

[0019] 3. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation enables the resistance plate to make reciprocating motion back and forth in the water storage tank while the wheel rotates through a transmission device, and then the position of the movable push plate is changed by starting the electric push rod in the traction part, so that the height of the water level in the water storage tank can be changed, and the draft of the resistance plate can be changed. Therefore, the equipment can adjust the force required for the patient's lower limbs to drive the foot pedal to rotate according to the later stage of the patient's postoperative rehabilitation, thereby achieving an exercise effect on the patient's lower limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structural disassembly of the fixing device in the present invention; Figure 4 It is a schematic cross-sectional view of the structure of the traction part in the present invention; Figure 5 It is a structural schematic diagram of the lying vehicle in the present invention; Figure 6 It is a schematic diagram of the structure of the handle part of the present invention; Figure 7 It is a schematic diagram of the structural disassembly of the seating part in the present invention; Figure 8 It is a structural schematic diagram of the power transmission part in the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of part A; Fig.10 It is a structural schematic diagram of the placement device in the present invention; Fig.11 It is a schematic diagram of the structure of the driving device in the present invention; Fig.12 It is a schematic diagram of the structural disassembly of the transmission device in the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged portion B.

[0021] Description of reference numerals: Fixing device; 10, fixed base; 11, fixed shell; 12, traction part; 120, water storage tank; 121, sealing ring; 122, gas separation membrane; 123, electric push rod; 124, movable push plate; 125, piston plate; 13, placement plate; 130, plate body through groove; 131, plate surface slide groove; Lying car; 20, fixed body; 21, front bracket; 22, support rod; 23, front gear plate; 24, foot pedal; 25, grip; 250, fixed bracket; 251, movable sleeve; 252, extension rod; 253, grip; 254, smart tablet; 26, sitting part; 260, rear bracket; 261, mounting bracket; 262, transition gear plate; 263, seat; Power transmission unit; 30, rotating shaft; 31, rear gear plate; 32, annular plate; 33, wheel; 34, mounting plate; Placing device; 40, fixed bottom plate; 41, placing frame; 42, rotating rod; 43, limiting wheel; Driving device; 50, control main board; 51, motor; 52, speed sensor; 53, signal transmission module; Transmission device; 60, docking plate; 61, limit rod; 62, connecting rod; 63, movable bracket; 64, pulley; 65, connecting plate; 66, fixing rod; 67, resistance plate; 670, plate through hole. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 13 , the present invention provides a technical solution: An auxiliary traction and exercise device for postoperative lower limb rehabilitation, comprising a fixing device 1 and a driving device 5 placed above the fixing device 1, wherein the fixing device 1 comprises two fixing bases 10 arranged opposite to each other, a fixing shell 11 welded and fixed between the two fixing bases 10, a traction part 12 arranged between the two fixing bases 10, and a placement plate 13 arranged above the traction part 12; In the present invention, the traction part 12 includes a water storage tank body 120, two sealing rings 121 arranged on the rear side wall of the water storage tank body 120, a gas separation membrane 122 arranged on the rear side wall of the water storage tank body 120 near the top through groove, an electric push rod 123 arranged on the inner side wall of the water storage tank body 120, a movable push plate 124 arranged on the telescopic rod of the electric push rod 123, and a piston plate 125 arranged on the rear side wall of the movable push plate 124; Furthermore, the sealing ring 121 is fixed to the outer wall of the water storage tank body 120 by strong glue, the gas separation membrane 122 is fixedly connected to the inner groove wall of the rear side wall of the water storage tank body 120 near the top through groove by screws, the electric push rod 123 is fixedly connected to the inner wall of the water storage tank body 120 by screws, the movable push plate 124 is fixedly connected to the end of the telescopic rod of the electric push rod 123 by bolts, the piston plate 125 is fixedly bonded to the movable push plate 124 by strong glue, the placement plate 13 is fixedly connected to the top surface of the fixed base 10 by bolts, and the top surface of the placement plate 13 is provided with a plate body through groove 130 that runs through from top to bottom and is closed at both ends, and the top surface of the placement plate 13 is provided with a plate surface slide groove 131 on the left and right sides of the plate body through groove 130. The fixed base 10 and the fixed shell 11 are used to ensure the strength of the overall structure of the fixing device 1, the water storage tank body 120 is used to ensure the strength of the overall structure of the traction part 12, the sealing ring 121 is used to prevent the water inside the water storage tank body 120 from flowing out, the gas separation membrane 122 is used to ensure that the water storage tank body 120 and the external air pressure are consistent, the electric push rod 123 is used to move the movable push plate 124 after being connected to an external power supply, the movable push plate 124 is used to provide a fixed platform for the piston plate 125, and the piston plate 125 is used to prevent the water in the water storage tank body 120 from flowing into the other side of the movable push plate 124, the placement plate 13 is used to provide a fixed platform for the lying car 2, the power transmission part 3, the placement device 4 and the driving device 5, and the plate body groove 130 and the plate surface slide groove 131 are used to provide a moving range for the movable bracket 63 of the transmission device 6.

[0024] In the present invention, a lying car 2 is fixedly installed on the top surface of the placement plate 13, and a power transmission part 3 is provided on the rear horizontal line of the lying car 2; Furthermore, the lying car 2 includes a fixed body 20, a front bracket 21 fixedly connected to the top of the front end of the fixed body 20 by bolts, a support rod 22 fixedly connected to the front end of the front bracket 21 by bolts, a front gear plate 23 rotatably connected to the bottom position of the front end of the fixed body 20, a foot pedal 24 fixedly connected to the outer walls of the left and right ends of the front gear plate 23 by bolts, a handle 25 arranged above the fixed body 20, and a seat 26 arranged on the horizontal line behind the fixed body 20. The fixed body 20 is used to ensure the overall structural strength of the lying car 2, the front bracket 21 is used to connect the support rod 22 to fix the front end of the fixed body 20 on the top surface of the placement plate 13, the front gear plate 23 is used to wrap the drive chain, and the foot pedal 24 is used to provide a placement point for the patient's feet.

[0025] In the present invention, the handle portion 25 includes a plurality of fixed brackets 250 welded and fixed on the top surface of the fixed vehicle body 20, a movable sleeve 251 rotatably connected to the inside of the fixed bracket 250 through a transmission rod, an extension rod 252 rotatably connected to the inside of the movable sleeve 251, a handle 253 fixedly connected to the outer wall of the extension rod 252 through bolts, and a smart tablet 254 fixed on the top of the extension rod 252 through a buckle clamping connection; Furthermore, the fixed bracket 250 is used to provide a fixed base point for the movable sleeve 251 on the fixed body 20, the movable sleeve 251 is used to provide a rotation range for the extension rod 252, the extension rod 252 is used to make the position of the handle 253 close to the patient's hand, the handle 253 enables the patient to operate the extension rod 252 to rotate, and the smart tablet 254 is fixed on the extension rod 252 so that the patient can control the steering of the car in the game when playing the racing game.

[0026] In the present invention, the seating portion 26 comprises a rear bracket 260 fixedly connected to the outer side wall of the rear end of the fixed vehicle body 20 by bolts, a mounting bracket 261 welded and fixed to the top surface of the rear bracket 260 and having a triangular longitudinal cross section, two sets of transition toothed plates 262 rotatably connected to the outer side walls of the left and right ends of the T-shaped frame below the rear bracket 260, and a seat 263 fixedly connected to the top surface of the mounting bracket 261 by bolts; Furthermore, the rear bracket 260 is used to provide a fixed base point for the mounting bracket 261, and the mounting bracket 261 is used to provide a fixed platform for the seat 263. The transition gear plate 262 rotatably connected to the T-shaped frame below the rear bracket 260 is used to cooperate with the front gear plate 23 to wrap around the drive chain. At the same time, the additional rack inside the transition gear plate 262 is used to wrap around an additional transmission chain, and the seat 263 is used to provide a leaning portion for the patient.

[0027] In the present invention, the power transmission part 3 includes a rotating shaft 30, two rear sprockets 31 arranged on the outer wall of the rotating shaft 30, an annular plate 32 arranged on the horizontal lines of the left and right sides of the rear sprockets 31, wheels 33 arranged on the left and right ends of the rotating shaft 30, and a mounting plate 34 arranged on the outer end of the connecting shaft of the wheel 33; Furthermore, the rotating shaft 30 is rotatably connected to the inside of the annular bearing behind the rear bracket 260, the rear sprocket 31 is fixedly connected to the outer side wall of the rotating shaft 30 by a bayonet, the annular plate 32 is fixedly connected to the outer side wall of the rotating shaft 30 by a snap, the wheel 33 is rotatably connected to the ends on both sides of the rotating shaft 30 by a hub, and the mounting plate 34 is fixedly connected to the outer side wall of the wheel 33 connecting shaft near the end by bolts. The rotating shaft 30 is used to provide a fixed platform for the rear sprocket 31, the rear sprocket 31 is used to cooperate with the additional rack inside the transition sprocket 262 to ensure the tension of the transmission chain surface, the annular plate 32 is used to limit the transmission range of the transmission chain, the wheel 33 can rotate inside the placement device 4 when the rear sprocket 31 rotates, and the mounting plate 34 is used to provide a fixed platform for the docking plate 60.

[0028] In the present invention, a placement device 4 is provided below the two wheels 33, and the placement device 4 includes a fixed bottom plate 40, a placement frame 41 provided on the top surface of the fixed bottom plate 40, two rotating rods 42 rotatably connected between the placement frames 41, and a limiting wheel 43 sleeved on the outside of the rotating rod 42; Furthermore, the fixed base plate 40 is fixedly connected to the top surface of the fixed base 10 by bolts, the longitudinal section of the placement frame 41 is isosceles trapezoidal and is integrally formed with the fixed base plate 40, and the limiting wheel 43 is fixedly connected to the outer wall of the rotating rod 42 by a bayonet. The fixed base plate 40 and the placement frame 41 are used to ensure the strength of the overall structure of the placement device 4, the placement frame 41 is used to provide a rotation range for the rotating rod 42, and the rotating rod 42 is used to provide a fixed base point for the limiting wheel 43, and multiple sets of limiting wheels 43 cooperate to enable the wheel 33 to rotate inside it.

[0029] In the present invention, the driving device 5 includes a control main board 50 fixedly connected to the top surface of the fixed base 10 by screws, a motor 51 fixedly connected to the inside of the slot on the side wall of the control main board 50 by screws, a speed sensor 52 fixedly connected to the outer side wall of the motor 51 by screws, and a signal transmission module 53 fixedly connected to the inside of the slot on the top surface of the control main board 50 by screws, and the output shaft of the motor 51 is coaxially connected to the rotating rod 42; Furthermore, the control main board 50 receives information from the speed sensor 52 and transmits it to the signal transmission module 53. After the motor 51 is powered on, it is used to provide power for the rotation of the rotating rod 42. The speed sensor 52 is used to monitor the rotation speed of the internal gear of the motor 51 when the wheel 33 rotates by itself, and transmits the signal to the control main board 50. The signal transmission module 53 is used to transmit the speed signal to the smart tablet 254.

[0030] In the present invention, a transmission device 6 is provided between the two mounting plates 34 and the traction part 12, and the transmission device 6 includes a docking plate 60, a limiting rod 61 provided on the outer wall of the docking plate 60, a connecting rod 62 slidably connected to the inside of the limiting rod 61, a mobile bracket 63 provided at the bottom end of the connecting rod 62, a plurality of pulleys 64 provided on the bottom surface of the mobile bracket 63, a connecting plate 65 provided between the two mobile brackets 63, a plurality of fixing rods 66 provided on the outer wall of the connecting plate 65, and a resistance plate 67 provided at the ends of the plurality of fixing rods 66; Furthermore, the docking plate 60 is fixedly connected to the outer wall of the mounting plate 34 by bolts, the limiting rod 61 is integrally formed with the docking plate 60, the bottom end of the connecting rod 62 is rotatably connected with the movable bracket 63, the pulley 64 is slidably engaged with the bottom surface of the movable bracket 63, the size of the pulley 64 is adapted to the size of the plate surface slide groove 131, and the bottom surface of the movable bracket 63 is integrally formed with a solid protrusion that passes through the plate body through groove 130. The docking plate 60 is used to provide a fixed platform for the limiting rod 61, the connecting rod 62 is used to cooperate with the docking plate 60 and the movable bracket 63 to form a crank connecting rod structure, converting the circular motion of the docking plate 60 into the reciprocating motion of the movable bracket 63, and the pulley 64 is used to make the movement of the movable bracket 63 smoother.

[0031] In the present invention, the longitudinal section of the connecting plate 65 is concave and is welded and fixed to the solid protrusion on the bottom surface of the movable bracket 63. The fixing rod 66 is fixed to the outer wall of the connecting plate 65 by snapping. The resistance plate 67 is fixed to the end of the fixing rod 66 by bolts. The resistance plate 67 is slidably connected to the inside of the water storage tank 120. The size of the resistance plate 67 is adapted to the internal size of the water storage tank 120. The front and rear end side walls of the resistance plate 67 are provided with a plurality of plate body through holes 670 which are distributed in a matrix manner, have an isosceles trapezoidal longitudinal section and are interconnected. Furthermore, the connecting plate 65 is used to provide a fixing platform for the fixing rod 66 , and the fixing rod 66 is used to provide a fixing base point for the resistance plate 67 . The plate body through hole 670 on the resistance plate 67 allows water flow to pass through the resistance plate 67 .

[0032] Finally, it should be noted that the control main board 50, motor 51, speed sensor 52, and signal transmission module 53 involved in the present invention are all universal standard parts or parts known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of the device, the control main board 50, motor 51, speed sensor 52, and signal transmission module 53 are connected to an external power supply through wires. The specific connection means should refer to the working principle of the present invention. The electrical connections between the electrical components are completed in a sequential working order, and the detailed connection means are all well-known technologies in the art.

[0033] When the auxiliary traction and exercise equipment for postoperative lower limb rehabilitation of the present invention is used, the patient in the early stage of postoperative period leans on the seat 263 in the seating part 26, holds the handles 253 in the handle part 25 with both hands, and puts both feet on the foot pedals 24 on both sides, then starts the motor 51 in the driving device 5 to drive the rotating rod 42 in the placing device 4 to rotate, thereby driving the rotation of the limiting wheel 43, driving the wheel 33 in the power transmission part 3 to rotate, and through a plurality of chain transmissions respectively mounted on the front gear plate 23, the transition gear plate 262 and the rear gear plate 31, the front gear plate 23 is driven to rotate together with the foot pedals 24, thereby traction is applied to the movement of the lower limb joints of the patient in the early stage of postoperative period; After the patient in the middle stage of the operation leans on the seat 263 in the seating part 26, he opens the smart tablet 254 in the grip part 25, opens the racing game in the smart tablet 254, and connects the signal with the control main board 50. The patient in the middle stage of the operation pedals the pedals 24 by himself to drive the rotation of the front sprocket 23, and drives the wheel 33 to rotate inside the placement device 4 through a plurality of chain transmissions respectively mounted on the front sprocket 23, the transition sprocket 262 and the rear sprocket 31. The speed sensor 52 in the driving device 5 transmits the monitored wheel 33 to the control main board 50, and then the signal transmission module 53 transmits the speed to the smart tablet 254 in real time, thereby driving the bicycle movement in the racing game; After the patient in the late postoperative period leans on the seat 263 in the seating part 26, a certain amount of tap water is first poured into the water storage tank 120, and then the electric push rod 123 in the traction part 12 is started to change the position of the movable push plate 124, thereby changing the height of the water level in the water storage tank 120, and then changing the draft depth of the resistance plate 67. While the patient pedals the pedal 24 to drive the wheel 33 to rotate, the docking plate 60 and the limit rod 61 rotate, so that the relative position of the connecting rod 62 changes continuously, thereby driving the movable bracket 63 to move back and forth inside the plate body groove 130, and also driving the resistance plate 67 to move inside the water storage tank 120 through the connecting plate 65 and the fixed rod 66, so as to increase the force required for the patient's lower limbs to drive the pedal 24 to rotate, and to have an exercise effect on the lower limbs of the patient in the late postoperative period.

[0034] 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit 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 protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An auxiliary traction and exercise device for postoperative lower limb rehabilitation, comprising a fixing device (1) and a driving device (5) placed above the fixing device (1), characterized in that: The fixing device (1) comprises two fixing bases (10) arranged opposite to each other, a fixing shell (11) welded and fixed between the two fixing bases (10), a traction part (12) arranged between the two fixing bases (10), and a placement plate (13) arranged above the traction part (12); The traction part (12) comprises a water storage tank body (120), two sealing rings (121) arranged on the rear side wall of the water storage tank body (120), a gas separation membrane (122) arranged on the rear side wall of the water storage tank body (120) near the inside of the top through groove, an electric push rod (123) arranged on the inner side wall of the water storage tank body (120), a movable push plate (124) arranged on the telescopic rod of the electric push rod (123), and a piston plate (125) arranged on the rear side wall of the movable push plate (124); A lying vehicle (2) is fixedly mounted on the top surface of the placement flat plate (13), and a power transmission part (3) is provided on the rear horizontal line of the lying vehicle (2); The power transmission part (3) comprises a rotating shaft (30), two rear sprockets (31) arranged on the outer side wall of the rotating shaft (30), an annular plate (32) arranged on the horizontal lines on the left and right sides of the rear sprockets (31), wheels (33) arranged on the left and right ends of the rotating shaft (30), and a mounting plate (34) arranged on the outer end of the connecting shaft of the wheel (33); A placement device (4) is provided below each of the two wheels (33), and the placement device (4) comprises a fixed bottom plate (40), a placement frame (41) arranged on the top surface of the fixed bottom plate (40), two rotating rods (42) rotatably connected between the placement frames (41), and a limiting wheel (43) sleeved on the outside of the rotating rod (42); A transmission device (6) is provided between the two mounting plates (34) and the traction portion (12), the transmission device (6) comprising a docking plate (60), a limiting rod (61) arranged on the outer wall of the docking plate (60), a connecting rod (62) slidably connected to the inside of the limiting rod (61), a movable bracket (63) arranged at the bottom end of the connecting rod (62), a plurality of pulleys (64) arranged on the bottom surface of the movable bracket (63), a connecting plate (65) arranged between the two movable brackets (63), a plurality of fixing rods (66) arranged on the outer wall of the connecting plate (65), and a resistance plate (67) arranged at the ends of the plurality of fixing rods (66).

2. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 1, characterized in that: The sealing ring (121) is fixed to the outer wall of the water storage tank (120) by strong glue, the gas separation membrane (122) is fixedly connected to the inner groove wall of the rear side wall of the water storage tank (120) near the top groove by screws, the electric push rod (123) is fixedly connected to the inner wall of the water storage tank (120) by screws, the movable push plate (124) is fixedly connected to the end of the telescopic rod of the electric push rod (123) by bolts, the piston plate (125) is fixedly connected to the movable push plate (124) by strong glue, the placement plate (13) is fixedly connected to the top surface of the fixed base (10) by bolts, and the top surface of the placement plate (13) is provided with a plate body groove (130) that runs through from top to bottom and is closed at both ends near the left and right ends, and the top surface of the placement plate (13) is provided with a plate surface sliding groove (131) on both sides of the left and right sides of the plate body groove (130).

3. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 1, characterized in that: The lying vehicle (2) comprises a fixed body (20), a front bracket (21) fixedly connected to the top of the front end of the fixed body (20) by bolts, a support rod (22) fixedly connected to the front end of the front bracket (21) by bolts, a front gear plate (23) rotatably connected to the bottom of the front end of the fixed body (20), foot pedals (24) fixedly connected to the outer walls of the left and right ends of the front gear plate (23) by bolts, a handle portion (25) arranged above the fixed body (20), and a seat portion (26) arranged on a horizontal line behind the fixed body (20).

4. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 3, characterized in that: The handle portion (25) comprises a plurality of fixed brackets (250) welded and fixed on the top surface of the fixed vehicle body (20), a movable sleeve (251) rotatably connected to the inside of the fixed bracket (250) via a transmission rod, an extension rod (252) rotatably connected to the inside of the movable sleeve (251), a handle (253) fixedly connected to the outer wall of the extension rod (252) via bolts, and a smart tablet (254) fixed above the extension rod (252) via a buckle.

5. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 3, characterized in that: The seating portion (26) comprises a rear bracket (260) fixedly connected to the rear end outer wall of the fixed vehicle body (20) by means of bolts, a mounting bracket (261) welded and fixed to the top surface of the rear bracket (260) and having a triangular longitudinal cross-section, two sets of transition toothed plates (262) rotatably connected to the outer walls at the left and right ends of a T-shaped frame below the rear bracket (260), and a seat (263) fixedly connected to the top surface of the mounting bracket (261) by means of bolts.

6. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 5, characterized in that: The rotating shaft (30) is rotatably connected to the inside of the annular bearing at the rear of the rear bracket (260); the rear sprocket (31) is fixedly connected to the outer side wall of the rotating shaft (30) by a bayonet pin; the annular plate (32) is fixedly connected to the outer side wall of the rotating shaft (30); the wheel (33) is rotatably connected to the ends on both sides of the rotating shaft (30) by a hub; and the mounting plate (34) is fixedly connected to the outer side wall of the wheel (33) connecting shaft near the end by bolts.

7. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 1, characterized in that: The fixed bottom plate (40) is fixedly connected to the top surface of the fixed base (10) by means of bolts, the longitudinal section of the placement frame (41) is an isosceles trapezoid and is formed integrally with the fixed bottom plate (40), and the limiting wheel (43) is fixedly connected to the outer side wall of the rotating rod (42) by means of a bayonet.

8. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 1, characterized in that: The driving device (5) comprises a control main board (50) fixedly connected to the top surface of the fixed base (10) by screws, a motor (51) fixedly connected to the inside of the slot on the side wall of the control main board (50) by screws, a speed sensor (52) fixedly connected to the outer wall of the motor (51) by screws, and a signal transmission module (53) fixedly connected to the inside of the slot on the top surface of the control main board (50) by screws, and the output shaft of the motor (51) is coaxially connected to the rotating rod (42).

9. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 2, characterized in that: The docking plate (60) is fixedly connected to the outer wall of the mounting plate (34) by bolts, the limiting rod (61) and the docking plate (60) are integrally formed, the bottom end of the connecting rod (62) is rotatably connected to the movable bracket (63), the pulley (64) is slidably engaged on the bottom surface of the movable bracket (63), the size of the pulley (64) is adapted to the size of the plate surface slide groove (131), and the bottom surface of the movable bracket (63) is integrally formed with a solid protrusion that passes through the plate body through groove (130).

10. The auxiliary traction and exercise equipment for postoperative lower limb rehabilitation according to claim 1, characterized in that: The longitudinal cross-section of the connecting plate (65) is concave-shaped and is welded and fixed to the solid protrusion on the bottom surface of the movable bracket (63). The fixing rod (66) is fixedly connected to the outer wall of the connecting plate (65). The resistance plate (67) is fixedly connected to the end of the fixing rod (66) by bolts. The resistance plate (67) is slidably connected to the inside of the water storage tank (120). The size of the resistance plate (67) is compatible with the internal size of the water storage tank (120). The front and rear end side walls of the resistance plate (67) are provided with a plurality of plate body through holes (670) distributed in a matrix manner, with a longitudinal cross-section of an isosceles trapezoid and interconnected.

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