Leg exercise device for lumbar postoperative rehabilitation

Abstract

The leg exercising device comprises a lying plate, a supporting frame, a first leg plate, a second leg plate, a driving structure and a supporting telescopic rod, the supporting telescopic rod is arranged and connected with the bottom of the first leg plate and the bottom of the second leg plate, and a first air port and a second air port are formed in the left side and the right side of the top of the supporting telescopic rod. An exhaust limiting valve is arranged at the top of the first air opening, when the leg plate is lowered, the supporting telescopic rod shrinks, the valve opening in the top of the valve body is blocked through the blocking plate, air is slowly discharged through an air hole in the blocking plate, the left moving speed of the movable block is reduced, the shrinking speed of the supporting telescopic rod is reduced, and then the lowering speed of the leg plate is lowered; and when the leg plate rotates upwards, external air extrudes the plugging plate to move downwards, so that the external air quickly enters the left side of the interior of the straight pipe, and upward rotation of the leg plate is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of lumbar vertebrae post-operative rehabilitation exercise, in particular to a leg exercise device for lumbar vertebrae post-operative rehabilitation. Background Art

[0002] The first stage of rehabilitation exercise after lumbar spine surgery is to strengthen the lower limb muscles to prevent nerve root adhesion, lower limb muscle atrophy and deep vein thrombosis. Supine straight leg raising exercises and double lower limb leg kicking exercises are required. The patient's leg strength is weak after surgery and it is difficult to persist. Therefore, passive lifting exercises are required.

[0003] There are currently devices that assist patients in performing postoperative rehabilitation exercises for the lumbar spine. For example, the Chinese utility model with publication number CN215132718U discloses "A device for postoperative rehabilitation exercises for the lumbar spine", which includes a bed board, an exercise board is arranged above the bed board, and the leg-placement position of the exercise board is separated to form two leg-placement boards; the leg-placement board and the exercise board are hingedly connected; a transmission support arm is arranged on each side of the exercise board, and the left and right transmission support arms have the same structure and are symmetrically arranged, a slave shaft is arranged on the outer side of the upper part of the transmission support arm, and a circle of sockets arranged in a circle is arranged on the lower part of the transmission support arm; a main shaft is arranged on the outer side of the lower part of the transmission support arm, and the position of the main shaft falls at the center of the circularly arranged sockets. The angle of the leg-placement board can be adjusted according to the patient's recovery condition or the physical conditions of different patients, so as to facilitate passive leg raising exercises for patients recovering from postoperative lumbar spine surgery to prevent muscle atrophy and nerve adhesion;

[0004] The above-mentioned lumbar postoperative rehabilitation exercise device has certain advantages in adjusting the angle of passive leg raising exercise, but when the leg board is lowered, the leg board is lowered under the weight, and the patient's legs follow the leg board. The leg board is lowered too quickly, which may easily cause injury to the patient. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a leg exercise device for postoperative rehabilitation of lumbar vertebrae, which solves the above-mentioned problems.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a leg exercise device for lumbar postoperative rehabilitation, including a lying board, a leg board 1, a leg board 2, a driving structure and a supporting telescopic rod, the bottom end of the lying board is supported by a supporting frame, and the front and rear sides of the left end of the lying board are respectively provided with a leg board 1 and a leg board 2, a driving structure is installed on the left side of the bottom of the lying board, and the driving structure is transmission-connected to the leg board 1 and the leg board 2, the bottoms of the leg board 1 and the leg board 2 are both connected to the supporting telescopic rod, and the bottom ends of the supporting telescopic rod are connected to the supporting frame The supporting telescopic rod comprises a straight tube, a movable block, a movable rod, a hinge 1, a hinge 2, an air port 1, an air port 2 and an exhaust limiting valve. The straight tube is provided with a movable block inside. The left end of the movable rod extends into the straight tube and is fixedly connected with the movable block. The left and right sides of the top of the straight tube are respectively provided with an air port 1 and an air port 2, and an exhaust limiting valve is installed on the top of the air port 1. The right ends of the movable rods of the two supporting telescopic rods are respectively hinged to the leg plate 1 and the leg plate 2 through the hinge 1, and the left end of the straight tube is hinged to the supporting frame through the hinge 2.

[0009] Preferably, the exhaust limiting valve includes a valve body, a sealing plate, an air hole, a limiting rod, a limiting ring and a spring. A sealing plate is provided on the inner top of the valve body, an air hole is opened inside the sealing plate, the middle part of the bottom end of the sealing plate is fixedly connected to the limiting rod, the bottom of the limiting rod passes through the limiting ring, and the outer side of the limiting ring is fixedly connected to the valve body, the bottom of the sealing plate is elastically connected to the limiting ring through a spring, and the spring is mounted on the outer side of the limiting ring, and the bottom of the valve body is connected to the air port on the left side of the top of the straight pipe.

[0010] Preferably, the driving structure includes a dual-axis motor, a driving shaft, a support bearing and a transmission mechanism, the front and rear ends of the dual-axis motor are provided with a driving shaft, the middle part of the driving shaft passes through the support bearing, and the support bearing is fixed to the bottom end of the lying board, and two transmission mechanisms are provided, and the two transmission mechanisms are respectively connected to the driving shafts at the front and rear ends of the dual-axis motor, and the two transmission mechanisms are respectively connected to leg board one and leg board two, and the dual-axis motor is fixed to the bottom end of the lying board.

[0011] Preferably, the transmission mechanism includes a shell, an incomplete gear, a gear, a rotating shaft and an angle sensor. An incomplete gear is provided on the right side of the interior of the shell, and a gear is provided on the left side of the interior of the shell, and the gear and the incomplete gear are meshed with each other. The center of the gear is connected to the rotating shaft, and an angle sensor is installed on the outside of the shell, and the angle sensor is transmission-connected to the outer end of the rotating shaft. The rotating shafts of the two transmission mechanisms are respectively transmission-connected to leg board one and leg board two, and the center of the incomplete gear is transmission-connected to the drive shaft. The shell is fixed to the outside of the lying board.

[0012] Preferably, the supporting telescopic rod is inclined upward from left to right.

[0013] Preferably, a valve port with an inner diameter gradually decreasing from bottom to top is provided at the inner top of the valve body, and the outer diameter of the sealing plate is smaller than the inner diameter of the middle part of the valve body and larger than the inner diameter of the top of the valve port at the top of the valve body.

[0014] Preferably, the distribution range of the teeth of the incomplete gear is less than ninety degrees.

[0015] (III) Beneficial effects

[0016] The utility model provides a leg exercise device for lumbar postoperative rehabilitation. It has the following beneficial effects: by setting a supporting telescopic rod, the supporting telescopic rod is connected to the bottom of the leg board 1 and the leg board 2, and the left and right sides of the top of the supporting telescopic rod are provided with air port 1 and air port 2, and an exhaust limiting valve is provided at the top of air port 1, when the leg board is lowered, the supporting telescopic rod contracts, the movable block in the supporting telescopic rod moves to the left, and the air on the left side of the straight tube is discharged through air port 1, and the blocking plate blocks the valve port at the top of the valve body, so that the air is slowly discharged through the air holes inside the blocking plate, slowing down the leftward movement speed of the movable block, slowing down the contraction speed of the supporting telescopic rod, and then slowing down the lowering speed of the leg board, avoiding the leg board from being lowered too fast, which may cause damage to the patient, and when the leg board rotates upward, the supporting telescopic rod extends, the movable block in the supporting telescopic rod moves to the right, and the left side of the straight tube is inhaled through air port 1, and the external air squeezes the blocking plate to move downward, so that the external air quickly enters the left side of the straight tube without affecting the upward rotation of the leg board;

[0017] The utility model provides a leg exercise device for postoperative rehabilitation of lumbar vertebrae. It has the following beneficial effects: by setting a driving structure, the incomplete gears of the two transmission mechanisms are driven by a dual-axis motor to rotate, and when the latching teeth of the incomplete gear rotate to mesh with the gear, the gear is driven to rotate, and the gear drives the leg board to rotate upward, and when the latching teeth of the incomplete gear rotate to disengage from the gear, the leg board is lowered, which is convenient for controlling the rotation of the leg board, and the continuous rotation of the incomplete gear can reciprocate the leg board, so as to perform reciprocating lifting exercise on the patient's legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural front view of the utility model;

[0020] Figure 3 This is a top view of the driving structure in the utility model;

[0021] Figure 4 This is a schematic diagram of the transmission mechanism structure in the utility model;

[0022] Figure 5This is a schematic diagram of the internal structure of the transmission mechanism in the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the supporting telescopic rod in the utility model;

[0024] Figure 7 It is a schematic diagram of the internal structure of the exhaust limiting valve in the utility model.

[0025] In the figure: lying board-1, supporting frame-2, leg board 1-3, leg board 2-4, driving structure-5, supporting telescopic rod-6, dual-axis motor-51, driving shaft-52, supporting bearing-53, transmission mechanism-54, housing-541, incomplete gear-542, gear-543, rotating shaft-544, angle sensor-545, straight pipe-61, movable block-62, movable rod-63, hinge part 1-64, hinge part 2-65, air port 1-66, air port 2-67, exhaust limiting valve-68, valve body-681, sealing plate-682, air hole-683, limit rod-684, limit ring-685, spring-686. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-7The utility model provides a technical solution of a leg exercise device for lumbar vertebrae postoperative rehabilitation: a leg exercise device for lumbar vertebrae postoperative rehabilitation, comprising a lying board 1, a leg board 1 3, a leg board 2 4, a driving structure 5 and a supporting telescopic rod 6. The bottom end of the lying board 1 is supported by a supporting frame 2. The front and rear sides of the left end of the lying board 1 are respectively provided with a leg board 1 3 and a leg board 2 4. The driving structure 5 is installed on the left side of the bottom of the lying board 1, and the driving structure 5 is transmission-connected with the leg board 1 3 and the leg board 2 4. The bottoms of the leg boards 1 3 and the leg boards 2 4 are both connected with supporting telescopic rods 6, and the bottom ends of the supporting telescopic rods 6 are connected to the supporting frame 2. The supporting telescopic rods 6 include a straight tube 61, a movable block 62, an movable rod 63, and a hinge. One 64, hinged part two 65, air port one 66, air port two 67 and exhaust limiting valve 68, a movable block 62 is arranged inside the straight pipe 61, the left end of the movable rod 63 extends into the straight pipe 61 and is fixedly connected to the movable block 62, air port one 66 and air port two 67 are respectively opened on the left and right sides of the top of the straight pipe 61, and an exhaust limiting valve 68 is installed on the top of the air port one 66, the right ends of the movable rods 63 supporting the telescopic rods 6 are respectively hinged to the leg plate one 3 and the leg plate two 4 through the hinge one 64, and the left end of the straight pipe 61 is hinged to the support frame 2 through the hinge two 65, and the supporting telescopic rod 6 is tilted upward from left to right, which is conducive to telescoping following the rotation of the leg plate one 3 and the leg plate two 4;

[0028] The exhaust limiting valve 68 includes a valve body 681, a blocking plate 682, an air hole 683, a limiting rod 684, a limiting ring 685 and a spring 686. A blocking plate 682 is provided at the inner top of the valve body 681, and an air hole 683 is provided inside the blocking plate 682. The middle part of the bottom end of the blocking plate 682 is fixedly connected to the limiting rod 684. The bottom of the limiting rod 684 passes through the limiting ring 685, and the outer side of the limiting ring 685 is fixedly connected to the valve body 681. The bottom of the blocking plate 682 is elastically connected to the limiting ring 685 through a spring 686, and the spring 686 is sleeved on the outer side of the limiting ring 685. The bottom of the valve body 681 is connected to the air port 1 66 on the left side of the top of the straight pipe 61.

[0029] The top of the inner side of the valve body 681 is provided with a valve opening with an inner diameter gradually decreasing from bottom to top. The outer diameter of the blocking plate 682 is smaller than the inner diameter of the middle part of the valve body 681, and larger than the inner diameter of the top of the valve opening at the top of the valve body 681. When the movable block 62 moves to the right, the left side of the straight tube 61 is inlet through the air port 1 66, and the external air squeezes the blocking plate 682 to move downward, so that the external air quickly enters the left side of the straight tube 61. When the movable block 62 moves to the left, the air on the left side of the straight tube 61 is discharged through the air port 1 66. The blocking plate 682 blocks the valve opening at the top of the valve body 681, so that the air is slowly discharged through the air hole 683 inside the blocking plate 682, slowing down the leftward movement speed of the movable block 62.

[0030] The driving structure 5 includes a dual-axis motor 51, a driving shaft 52, a support bearing 53 and a transmission mechanism 54. The front and rear ends of the dual-axis motor 51 are both provided with a driving shaft 52. The middle part of the driving shaft 52 passes through the support bearing 53, and the support bearing 53 is fixed to the bottom end of the lying board 1. Two transmission mechanisms 54 are provided. The two transmission mechanisms 54 are respectively connected to the driving shafts 52 at the front and rear ends of the dual-axis motor 51, and the two transmission mechanisms 54 are respectively connected to the leg board 1 3 and the leg board 2 4. The dual-axis motor 51 is fixed to the bottom end of the lying board 1.

[0031] The transmission mechanism 54 includes a housing 541, an incomplete gear 542, a gear 543, a rotating shaft 544 and an angle sensor 545. The incomplete gear 542 is arranged on the right side of the housing 541, and the gear 543 is arranged on the left side of the housing 541. The gear 543 and the incomplete gear 542 are meshed with each other. The rotating shaft 544 is connected to the center of the gear 543. The angle sensor 545 is installed on the outside of the housing 541, and the angle sensor 545 is connected to the outer end of the rotating shaft 544. The rotating shafts 544 of the two transmission mechanisms 54 are connected to the leg plates 1 3 and 2 4 respectively. The center of the incomplete gear 542 is connected to the drive shaft 5 2 transmission connection, the shell 541 is fixed to the outer side of the lying board 1, and the distribution range of the teeth of the incomplete gear 542 is less than ninety degrees, so that when the teeth of the incomplete gear 542 rotate to mesh with the gear 543, the gear 543 is driven to rotate, and when the teeth of the incomplete gear 542 rotate to disengage from the meshing with the gear 543, the leg board 1 3 or the leg board 2 4 rotates downward, and a detachable cover is provided on the outer side of the shell 541. The incomplete gear 542 can be disassembled and replaced by opening the cover, and the specifications of the incomplete gear 542 can be replaced according to the leg board lifting angle required by the patient, and the maximum lifting angle of the leg board can be adjusted by replacing the incomplete gears 542 of different specifications.

[0032] When in use, the patient first lies on the reclining board 1, and the legs are placed on the leg board 1 3 and the leg board 2 4 respectively, and then the dual-axis motor 51 is driven to drive the incomplete gears 542 of the two transmission mechanisms 54 to rotate counterclockwise through the driving shafts 52 on the front and rear sides. When the latching teeth of the incomplete gear 542 rotate to mesh with the gear 543, the gear 543 is driven to rotate, and the gear 543 drives the leg board 1 3 and the leg board 2 4 to rotate upward through the rotating shaft 544, and the rotation angle is detected by the angle sensor 545. The leg boards 1 3 and 2 4 rotate upward to drive the patient's legs to be raised, and the patient's legs are passively raised. When the latching teeth of the incomplete gear 542 rotate to disengage from the meshing with the gear 543, the leg board is lowered, and the continuous rotation of the incomplete gear 542 can reciprocate the leg board, and the patient's legs are reciprocated. Lifting exercise;

[0033] The bottom of the leg plate 1 3 and the leg plate 2 4 is provided with a supporting telescopic rod 6. When the leg plate is lowered, the supporting telescopic rod 6 contracts, and the movable block 62 in the supporting telescopic rod 6 moves to the left. The right side of the straight tube 61 is inlet through the air port 2 67, and the air on the left side of the straight tube 61 is discharged through the air port 1 66. Since the sealing plate 682 blocks the valve port at the top of the valve body 681, the air is slowly discharged through the air hole 683 in the sealing plate 682, slowing down the leftward movement speed of the movable block 62 and slowing down the contraction of the supporting telescopic rod 6. Speed, thereby slowing down the lowering speed of the leg board to avoid the leg board being lowered too quickly, which may easily cause damage to the patient. When the leg board rotates upward, the supporting telescopic rod 6 extends, and the movable block 62 in the supporting telescopic rod 6 moves to the right. The right side of the straight tube 61 is exhausted through the air port 2 67, and the left side of the straight tube 61 is aired through the air port 1 66. The external air squeezes the sealing plate 682, and the sealing plate 682 squeezes the spring 686 to move downward, so that the external air quickly enters the left side of the straight tube 61 without affecting the upward rotation of the leg board.

[0034] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0035] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leg exercise device for postoperative rehabilitation of the lumbar spine, comprising a lying board (1), the bottom end of the lying board (1) being supported by a supporting frame (2); Features: It also includes a leg board 1 (3), a leg board 2 (4), a driving structure (5) and a supporting telescopic rod (6). The leg board 1 (3) and the leg board 2 (4) are respectively arranged on the front and rear sides of the left end of the lying board (1). The driving structure (5) is installed on the left side of the bottom of the lying board (1), and the driving structure (5) is connected to the leg board 1 (3) and the leg board 2 (4) in a transmission manner. The bottoms of the leg boards 1 (3) and 2 (4) are both connected to the supporting telescopic rod (6), and the bottom ends of the supporting telescopic rod (6) are connected to the supporting frame (2). The supporting telescopic rod (6) includes a straight tube (61), a movable block (62), a movable rod (63), a hinged part 1 (64), and a hinged part 2 (65). , air port 1 (66), air port 2 (67) and an exhaust limiting valve (68); a movable block (62) is arranged inside the straight tube (61); the left end of the movable rod (63) extends into the straight tube (61) and is fixedly connected to the movable block (62); air port 1 (66) and air port 2 (67) are respectively arranged on the left and right sides of the top of the straight tube (61); an exhaust limiting valve (68) is installed on the top of the air port 1 (66); the right ends of the movable rods (63) of the two supporting telescopic rods (6) are respectively hinged to the leg plate 1 (3) and the leg plate 2 (4) through the hinge 1 (64); and the left end of the straight tube (61) is hinged to the support frame (2) through the hinge 2 (65).

2. A leg exercise device for postoperative rehabilitation of lumbar spine according to claim 1, characterized in that: The exhaust limiting valve (68) comprises a valve body (681), a blocking plate (682), an air hole (683), a limiting rod (684), a limiting ring (685) and a spring (686). A blocking plate (682) is provided at the inner top of the valve body (681). An air hole (683) is provided inside the blocking plate (682). The middle part of the bottom end of the blocking plate (682) is fixedly connected to the limiting rod (684). The bottom of the limiting rod (684) passes through the limiting ring (685), and the outer side of the limiting ring (685) is fixedly connected to the valve body (681). The bottom of the blocking plate (682) is elastically connected to the limiting ring (685) through a spring (686), and the spring (686) is sleeved on the outer side of the limiting ring (685). The bottom of the valve body (681) is connected to the air port 1 (66) on the left side of the top of the straight pipe (61).

3. The leg exercise device for postoperative rehabilitation of lumbar spine according to claim 1, characterized in that: The driving structure (5) comprises a dual-axis motor (51), a driving shaft (52), a support bearing (53) and a transmission mechanism (54); the dual-axis motor (51) is provided with a driving shaft (52) at both the front and rear ends; the middle of the driving shaft (52) passes through the support bearing (53), and the support bearing (53) is fixed to the bottom end of the lying board (1); two transmission mechanisms (54) are provided, and the two transmission mechanisms (54) are respectively connected to the driving shafts (52) at the front and rear ends of the dual-axis motor (51) in a transmission manner, and the two transmission mechanisms (54) are respectively connected to the leg board 1 (3) and the leg board 2 (4); the dual-axis motor (51) is fixed to the bottom end of the lying board (1).

4. The leg exercise device for postoperative rehabilitation of lumbar spine according to claim 3, characterized in that: The transmission mechanism (54) comprises a housing (541), an incomplete gear (542), a gear (543), a rotating shaft (544) and an angle sensor (545). The housing (541) is provided with an incomplete gear (542) on the right side thereof, the housing (541) is provided with a gear (543) on the left side thereof, and the gear (543) and the incomplete gear (542) are meshed with each other. The center of the gear (543) is connected with the rotating shaft (544). The outer side of the housing (541) is provided with an angle sensor (545), and the angle sensor (545) is transmission-connected with the outer side end of the rotating shaft (544). The rotating shafts (544) of the two transmission mechanisms (54) are transmission-connected with the leg board 1 (3) and the leg board 2 (4) respectively. The center of the incomplete gear (542) is transmission-connected with the driving shaft (52). The housing (541) is fixed to the outer side of the lying board (1).

5. The leg exercise device for postoperative rehabilitation of lumbar spine according to claim 1, characterized in that: The supporting telescopic rod (6) is inclined upward from left to right.

6. The leg exercise device for postoperative rehabilitation of lumbar spine according to claim 2, characterized in that: The inner top of the valve body (681) is provided with a valve opening whose inner diameter gradually decreases from bottom to top. The outer diameter of the sealing plate (682) is smaller than the inner diameter of the middle part of the valve body (681) and larger than the inner diameter of the top of the valve opening at the top of the valve body (681).

7. The leg exercise device for postoperative rehabilitation of lumbar spine according to claim 4, characterized in that: The distribution range of the teeth of the incomplete gear (542) is less than 90 degrees.

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