CN106943280B

CN106943280B - Backbone rehabilitation bed

Info

Publication number: CN106943280B
Application number: CN201710299553.5A
Authority: CN
Inventors: 申允德; 玄东吉; 李振宗; 吴远金; 包宏斌; 张书祺; 虞帆
Original assignee: Wenzhou University
Current assignee: Wenzhou University
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2023-08-08
Anticipated expiration: 2037-05-02
Also published as: CN106943280A

Abstract

The invention discloses a spine rehabilitation bed, which is characterized in that: comprises a bedstead (1), wherein a head moving device (2), a buttock lifting device (3) and a leg folding device (4) are sequentially arranged on the bedstead (1); the head moving device (2) is provided with a head bed plate (5), and a leg bed plate (6) is arranged above the leg folding device (4). The invention has the characteristics of simple structure, convenient operation, wide application range and good exercise effect.

Description

Backbone rehabilitation bed

Technical Field

The invention relates to a rehabilitation bed, in particular to a spinal rehabilitation bed.

Background

The number of patients with lumbar disc herniation increases year by year and is also gradually younger due to poor sitting postures, lack of exercise and the like of modern people. 80% -90% of patients do not need surgery, and more needs to do necessary and permanent rehabilitation training. At present, domestic hospitals are not very important for postoperative recovery of spinal patients, but after patients suffering from scoliosis, ankylosing spondylitis and lumbar disc herniation are known to perform necessary recovery processes in hospitals, doctors should order to perform five-point lumbar and dorsal muscle exercises, three-point lumbar and dorsal muscle exercises, supine arch bridge exercises, delphinidia spot water exercises and the like step by step before the patients are discharged from the hospitals so as to strengthen the strength of back muscles of the patients and improve the stability of the spinal column. At present, the common spinal rehabilitation apparatus on the domestic market mainly adopts artificial traction or support brace similar to a suspension cable, but the apparatus has high operation difficulty and improper exercise and is easy to produce lumbar muscle strain; the height of the rehabilitation instrument with the suspension rope type structure is always fixed, and the height of the position required by patients with different heights and different rehabilitation stages is different, so that the self-adaption capability of the instrument is poor.

Disclosure of Invention

The invention aims to provide a spinal rehabilitation bed. The device has the characteristics of simple structure, convenient operation, wide application range and good exercise effect.

The technical scheme of the invention is as follows: a spine rehabilitation bed comprises a bed frame, wherein a head moving device, a buttock lifting device and a leg folding device are sequentially arranged on the bed frame; the head moving device is provided with a head bed plate, and the leg bed plate is arranged above the leg folding device.

In the above-mentioned spinal rehabilitation bed, the head moving device comprises a bottom plate fixed at one end of the bed frame, a head moving motor is arranged on the bottom plate, the head moving motor is connected with a head screw rod, a head sliding block is arranged on the head screw rod, and a head guide rail matched with the head sliding block is arranged on the bottom plate; the head moving device also comprises a connecting rod fixed above the head sliding block, a headrest is arranged at the upper end of the connecting rod, and the headrest is positioned above the head bed plate; the head bed board is provided with a sliding groove matched with the connecting rod. The headrest drives the head screw rod to move towards the tail of the bed along the length direction of the bed frame through the head moving motor. Simple structure, independent mechanism, convenient for accurately controlling the movement of the headrest, and keeping the distance between the headrest on the bed and the buttock lifting plate basically consistent with the length of the upper body of the patient.

In the above-mentioned spine rehabilitation bed, the leg folding device comprises a leg moving motor arranged at the other end of the bed frame, the leg moving motor is connected with a leg screw rod, a leg sliding block is arranged on the leg screw rod, and the leg sliding block is connected with a crank sliding rod mechanism; the leg bed board comprises a leg fixed bed board fixed on a leg sliding block, and also comprises a leg movable bed board fixed on a crank sliding rod mechanism, and the leg movable bed board and the leg fixed bed board are hinged through a hinge. Through the reverse application of shank lead screw crank slide bar mechanism, thereby in shank moving motor drive shank lead screw's motion process, thereby the shank slider removes and makes slider crank mechanism jack-up hinge connection's three shank bed board, forms the foot and naturally fold the form, when the people lie in the bed, can assist through this mechanism to carry out bent leg, reduce human self power to guarantee the standardization of action.

In the above-mentioned backbone rehabilitation bed, the buttock lifting device comprises a cross beam fixed in the middle of the bed frame, a lifting motor is arranged in the middle of the cross beam, bearing seats are arranged on two sides of the lifting motor, a gear shaft is arranged between the bearing seats, a driven gear is arranged on the gear shaft, and a driving gear meshed with the driven gear is arranged at the output end of the lifting motor; the two ends of the gear shaft are respectively provided with a rocker, the rockers are provided with electric push rods, the electric push rods are provided with cranks, and a buttock lifting plate is arranged between two adjacent cranks; the buttock lifting device also comprises a guide plate which is positioned at the outer side of the crank and is fixed at the middle part of the bedstead, an arc-shaped groove is arranged on the guide plate, and guide posts matched with the arc-shaped groove are respectively arranged at two ends of the buttock lifting plate. The incomplete gear is driven by the lifting motor on the cross beam, so that the crank and rocker mechanism is driven, the hip lifting mechanism assists in completing the five-point type vertebra rehabilitation movement process, and the head movement is avoided as much as possible in the process. In addition, the electric push rod is used for changing the ascending height of the crank, so that corresponding adjustment is made on the ascending height according to the heights of different patients, or when the patients are in different rehabilitation stages, the ascending height can be adjusted, and the degree of auxiliary movement is adjusted to help the patients to perform effective rehabilitation movement better.

In the spinal rehabilitation bed, the crank is provided with the U-shaped groove, and the guide post penetrates through the U-shaped groove to be connected with the guide plate; the upper end and the lower end in the U-shaped groove and the arc-shaped groove are respectively provided with a damper. The damper and other buffer devices are used to reduce the rigid impact of the mechanism, eliminate the influence of the machine on the human body as much as possible and minimize the damage probability.

In the above-mentioned backbone rehabilitation bed, the driven gear is provided with two claw-shaped grooves symmetrically arranged, the driving gear is provided with two pin shaft posts matched with the claw-shaped grooves, and an arc-shaped baffle plate is arranged between the two pin shaft posts.

In the above-mentioned spinal rehabilitation bed, the driving gear is an incomplete gear.

Compared with the prior art, the invention can meet the requirements of postoperative rehabilitation training of scoliosis, ankylosing spondylitis and lumbar disc herniation patients with different heights by arranging the head moving device on the bedstead and adjusting the position of the headrest, and can assist to complete three-point and five-point lumbar muscle functional exercise by arranging the hip lifting device and the leg folding device on the bedstead, thereby reducing the difficulty to a certain extent, reducing the strain of the exercise on the lumbar muscle and having simple structure. In conclusion, the invention has the characteristics of simple structure, convenient operation, wide application range and good exercise effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic structural view of a head movement device;

FIG. 3 is a schematic view of the structure of the leg folding device;

FIG. 4 is a schematic view of the structure of the buttocks lifting device;

fig. 5 is a schematic structural view of a driving gear and a driven gear.

Description of the marks in the accompanying drawings: 1-bed frame, 2-head moving device, 3-buttock lifting device, 4-leg folding device, 5-head bed board, 6-leg bed board, 7-sliding groove, 8-leg fixed bed board, 9-leg movable bed board, 10-hinge, 201-bottom board, 202-head moving motor, 203-head screw, 204-head slider, 205-head guide rail, 206-connecting rod, 207-headrest, 301-beam, 302-lifting motor, 303-bearing seat, 304-gear shaft, 305-driven gear, 306-driving gear, 307-rocker, 308-electric push rod, 309-crank, 310-buttock lifting board, 311-guide board, 312-arc groove, 313-guide column, 314-U-shaped groove, 315-claw-shaped groove, 316-pin shaft column, 317-arc baffle, 401-leg moving motor, 402-leg screw, 403-leg slider, 404-crank mechanism.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not intended to be limiting.

Examples. The spine rehabilitation bed is shown in figures 1 to 5 and comprises a bed frame 1, wherein a head moving device 2, a buttock lifting device 3 and a leg folding device 4 are sequentially arranged on the bed frame 1; the head moving device 2 is provided with a head bed plate 5, and a leg bed plate 6 is arranged above the leg folding device 4.

The head moving device 2 comprises a bottom plate 201 fixed at one end of the bed frame 1, a head moving motor 202 is arranged on the bottom plate 201, the head moving motor 202 is connected with a head screw 203, a head sliding block 204 is arranged on the head screw 203, and a head guide rail 205 matched with the head sliding block 204 is arranged on the bottom plate 201; the head moving device 2 further comprises a connecting rod 206 fixed above the head sliding block 204, a headrest 207 is arranged at the upper end of the connecting rod 206, and the headrest 207 is positioned above the head bed plate 5; the head bed board 5 is provided with a sliding groove 7 matched with the connecting rod 206.

The leg folding device 4 comprises a leg moving motor 401 arranged at the other end of the bedstead 1, the leg moving motor 401 is connected with a leg screw 402, a leg sliding block 403 is arranged on the leg screw 402, and the leg sliding block 403 is connected with a crank sliding rod mechanism 404; the leg bed board 6 comprises a leg fixed bed board 8 fixed on a leg sliding block 403, the leg bed board 6 also comprises a leg movable bed board 9 fixed on a crank sliding rod mechanism 404, and the leg movable bed board 9 and the leg fixed bed board 8 are hinged through a hinge 10.

The buttock lifting device 3 comprises a cross beam 301 fixed in the middle of the bedstead 1, a lifting motor 302 is arranged in the middle of the cross beam 301, bearing seats 303 are arranged on two sides of the lifting motor 302, a gear shaft 304 is arranged between the bearing seats 303, a driven gear 305 is arranged on the gear shaft 304, and a driving gear 306 meshed with the driven gear 305 is arranged at the output end of the lifting motor 302; the two ends of the gear shaft 304 are respectively provided with a rocker 307, the rocker 307 is provided with an electric push rod 308, the electric push rod 308 is provided with a crank 309, and a buttock lifting plate 310 is arranged between two adjacent cranks 309; the hip lifting device 3 further comprises a guide plate 311 positioned at the outer side of the crank 309 and fixed at the middle part of the bed frame 1, an arc groove 312 is arranged on the guide plate 311, and guide posts 313 matched with the arc groove 312 are respectively arranged at two ends of the hip lifting plate 310.

The crank 309 is provided with a U-shaped groove 314, and the guide post 313 passes through the U-shaped groove 314 to be connected with the guide plate 311; dampers are arranged at the upper end and the lower end in the U-shaped groove 314 and the arc-shaped groove 312.

The driven gear 305 is provided with two claw-shaped grooves 315 symmetrically arranged, the driving gear 306 is provided with two pin shafts 316 matched with the claw-shaped grooves 315, and an arc-shaped baffle 317 is arranged between the two pin shafts 316.

The driving gear 306 is an incomplete gear.

The incomplete gear comprises a gear main body, wherein a smooth surface and a gear surface are arranged on the outer wall of the gear main body, and the incomplete gear refers to the fact that the number of teeth on the outer wall surface of the gear main body accounts for one third to one half of the outer wall surface of the whole gear main body. The center of the pitch circle of the driving gear 306 with the incomplete gear structure is provided with a pin shaft 316, and the pin shaft 316 can smoothly mesh into the cam groove on the driven gear 305 and drive the stopped driven gear 305 to move, the speed is continuously increased, and when the shaft reaches the center line of the two wheels, the pitch circle speeds of the two wheels are equal. The arcuate stop 317 on the drive gear 306 smoothly enters the claw slot 315 on the driven gear 305 and the pin 316 is now withdrawn back from the cam slot.

The two ends of the bedstead are the left end and the right end of the bedstead; the two ends of the gear shaft refer to the front and rear ends of the gear shaft and are positioned at the front and rear ends of the bedstead; the two ends of the buttock lifting plate are the front and rear ends of the buttock lifting plate and are positioned at the front and rear ends of the bedstead.

The leg movable bed board 9 comprises two independent bed boards hinged by a hinge 10, and a crank slide bar mechanism 404 is fixed with the independent bed board at the left end.

In addition, the humanization and the safety of functions are considered, and the mattress material on the surface of the bed board is a mattress special for spine recovery and an emergency stop button is arranged.

When a patient is lying on the bed with his/her legs bent, the incomplete driving gear 306 is driven by the lifting motor 302 on the cross beam 301 at the bottom to drive the crank and rocker mechanism, so that the hip lifting device 3 assists in completing the five-point spinal rehabilitation exercise process of lifting-holding posture for 3 seconds, lowering for 6 seconds, lying on the bed for 3 seconds, and avoiding head movement as much as possible during the process. In addition, according to the height of different patients to the height of lifting and making corresponding adjustment, perhaps when the patient is in different recovered stages, can adjust the height of assisting lifting, adjust the degree of assisting the motion in order to help the patient better carry out effectual rehabilitation motion. The length of the link is changed by height adjustment of the electric push rod 308 to change the highest elevation of the crank 309. And to achieve synchronization of the two-sided electrical pushrods 308 we will use a governor system to assist in regulation.

The working process of the invention comprises the following steps: the headrest 207 is positioned above the head bed plate 5, the headrest 207 is connected with the head moving motor 202 and the head screw 203 at the lower part through the sliding groove 7 on the head bed plate 5, and the headrest 207 drives the head screw 203 to rotate along with the head moving motor 202 so as to precisely control the movement of the headrest 207.

The guide plates 311 are erected on the left and right cross bars of the bed frame 1 and are fixed by countersunk head screws. The buttocks lifting plate 310 is mounted on the two side cranks 309, and the cranks 309 are in contact with the two side guide plates 311. The crank 309 is coaxially connected to the rocker 307, the rockers 307 on both sides are connected by means of a gear shaft 304, driven gears 305 of a pair of incomplete gears are located on the gear shaft 304, a driving gear 306 is connected to the lifting motor 302, and the lifting motor 302 is located above the cross beam 301.

The incomplete driving gear 306 drives the rocker 307 to shake, thereby lifting the crank 309, the buttock lifting plate 10 above the crank 309 is then lifted along the arc-shaped groove 312 of the guide plate 311, and intermittent movement of stopping up and down is achieved under the action of the incomplete driving gear 306. Dampers are mounted at the beginning and the end of the arc-shaped groove 312 on the guide plate 311 to reduce impact. Buffer blocks are mounted on both ends of the U-shaped groove 314 on the crank 309. In addition, the electric push rod 308 on the crank 309 can adjust the length of the crank 309 to achieve the adjustment of the lifting height. The two-sided electric push rod 309 ensures the synchronism of the two sides through the timing system.

The leg lifting device is driven by the leg moving motor 401, and the crank sliding rod mechanism below the leg bed board is lifted up and down, so that the leg moving bed board 9 which is connected with the hinge 10 through the hinge is lifted up and moved horizontally in succession, and the leg lifting device caters for knee bending, folding and lifting of the legs.

Claims

1. A spinal rehabilitation bed, characterized in that: comprises a bedstead (1), wherein a head moving device (2), a buttock lifting device (3) and a leg folding device (4) are sequentially arranged on the bedstead (1); the head moving device (2) is provided with a head bed plate (5), and a leg bed plate (6) is arranged above the leg folding device (4);

the head moving device (2) comprises a bottom plate (201) fixed at one end of the bed frame (1), a head moving motor (202) is arranged on the bottom plate (201), the head moving motor (202) is connected with a head screw rod (203), a head sliding block (204) is arranged on the head screw rod (203), and a head guide rail (205) matched with the head sliding block (204) is arranged on the bottom plate (201); the head moving device (2) further comprises a connecting rod (206) fixed above the head sliding block (204), a headrest (207) is arranged at the upper end of the connecting rod (206), and the headrest (207) is positioned above the head bed plate (5); the head bed board (5) is provided with a sliding groove (7) matched with the connecting rod (206);

the leg folding device (4) comprises a leg moving motor (401) arranged at the other end of the bedstead (1), the leg moving motor (401) is connected with a leg screw rod (402), a leg sliding block (403) is arranged on the leg screw rod (402), and the leg sliding block (403) is connected with a crank sliding rod mechanism (404); the leg bed board (6) comprises a leg fixed bed board (8) fixed on a leg sliding block (403), the leg bed board (6) also comprises a leg movable bed board (9) fixed on a crank sliding rod mechanism (404), and the leg movable bed board (9) is hinged with the leg fixed bed board (8) through a hinge (10);

the buttock lifting device (3) comprises a cross beam (301) fixed in the middle of the bedstead (1), a lifting motor (302) is arranged in the middle of the cross beam (301), bearing seats (303) are arranged on two sides of the lifting motor (302), a gear shaft (304) is arranged between the bearing seats (303), a driven gear (305) is arranged on the gear shaft (304), and a driving gear (306) meshed with the driven gear (305) is arranged at the output end of the lifting motor (302); two ends of the gear shaft (304) are respectively provided with a rocker (307), the rockers (307) are provided with electric push rods (308), the electric push rods (308) are provided with cranks (309), and a buttock lifting plate (310) is arranged between two adjacent cranks (309); the buttock lifting device (3) further comprises a guide plate (311) which is positioned at the outer side of the crank (309) and is fixed at the middle part of the bedstead (1), an arc groove (312) is arranged on the guide plate (311), and guide posts (313) which are matched with the arc groove (312) are respectively arranged at two ends of the buttock lifting plate (310); two claw-shaped grooves (315) which are symmetrically arranged are formed in the driven gear (305), two pin shaft posts (316) which are matched with the claw-shaped grooves (315) are formed in the driving gear (306), and an arc-shaped baffle (317) is arranged between the two pin shaft posts (316); the driving gear (306) is an incomplete gear.

2. A spinal rehabilitation bed as claimed in claim 1, wherein: the crank (309) is provided with a U-shaped groove (314), and the guide post (313) passes through the U-shaped groove (314) to be connected with the guide plate (311); dampers are arranged at the upper end and the lower end in the U-shaped groove (314) and the arc-shaped groove (312).