Auxiliary exercise bed and auxiliary exercise method thereof

Abstract

The present invention discloses an auxiliary exercise bed and an auxiliary exercise method thereof. When people with limited mobility use existing auxiliary exercise equipment, they must leave the bed to exercise, which is very inconvenient. An auxiliary exercise bed of the present invention includes a bed frame, a bed board assembly, a foot exercise mechanism, a backboard driving member and a shoulder exercise mechanism. The bed board assembly includes a backboard, a slot filling plate, a hip board, a leg board and a foot board. The foot exercise mechanism includes a limiting inclined block, a first limiting electromagnet, a second limiting electromagnet, an electric push rod, a first hinge rod, a second hinge rod and a push rod frame. The shoulder exercise mechanism includes a shoulder width adjustment rod, a two-way nut tube, a swing arm rod, an arm binding member, a shoulder width adjustment driving member and a swing arm driving member. The present invention can be used as an ordinary bed, and can also assist the user to sit up and perform auxiliary exercises of the shoulder joint, knee joint and ankle joint. Therefore, people with limited mobility can perform joint exercises without leaving the bed.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary exercise equipment, and in particular relates to an auxiliary exercise bed and an auxiliary exercise method thereof. Background Art

[0002] When the body needs to stay in bed for a long time due to illness or accidental injury, the muscles in various parts of the body often atrophy and become weak due to lack of movement of the hands and feet. Therefore, medical staff need to frequently provide auxiliary exercises for those with limited mobility, which greatly increases the workload of medical staff and reduces medical efficiency. In addition, there are currently some auxiliary exercise equipment, but when people with limited mobility want to use these equipment, someone must assist them to leave the bed and exercise, which also requires a lot of manpower. In addition, most of the existing exercise-assisting equipment can only perform auxiliary exercises for a single part. Summary of the invention

[0003] The object of the present invention is to provide an auxiliary exercise bed and an auxiliary exercise method thereof.

[0004] An auxiliary motion bed of the present invention comprises a bed frame, a bed board assembly, a foot motion mechanism, a backboard driving member and a shoulder motion mechanism. The bed board assembly comprises a backboard, a slot filling plate, a hip board, a leg board and a foot board. The hip board is fixed to the bed frame. The inner edge of the backboard is hinged to one side edge of the hip board. The backboard is driven by a backboard driving member. The inner ends of the two leg boards are hinged to the other side edge of the hip board through a first hinge shaft. The outer ends of the two leg boards are hinged to the inner edges of the two foot boards through a second hinge shaft respectively. Two clearance grooves are provided on the backboard. The two slot filling plates are fixed on the bed frame in a centered manner and are aligned with the two clearance grooves on the backboard along the circumferential direction of the first hinge axis respectively. A placement notch is provided on the slot filling plate.

[0005] The foot movement mechanism includes a limit bevel block, a first limit electromagnet, a second limit electromagnet, an electric push rod, a first hinge rod, a second hinge rod and a push rod frame. The two first hinge rods are respectively located on both sides of the bed frame, and one end of the two first hinge rods is respectively hinged to the inner ends of the two leg boards through the third hinge shaft, and the other end is respectively hinged to one end of the two second hinge rods through the fourth hinge shaft. The other ends of the two second hinge rods are respectively hinged to the outer ends of the two foot boards through the fifth hinge shaft. The axis of the first hinge shaft is collinear with the axis of the third hinge shaft. The two first limit electromagnets are respectively fixed to the two sides of the bed frame and are respectively located below the two first hinge rods. The first limit iron block is fixed to the two first hinge rods. The limit bevel block is fixed to the bed frame and is located below the hip board. The working side surface of the limit bevel block is tilted upward, and the angle with the horizontal plane is θ, 40°≤θ≤70°. Two second limit electromagnets are embedded on the working side surface of the limit bevel block. The bottom surfaces of the two leg boards are fixed with second limit iron blocks. The shells of the two electric push rods form a rotating pair with the tail end of the bed frame. The push rods of the two electric push rods are respectively hinged to the top surfaces of the two foot boards through the sixth hinge shaft.

[0006] The shoulder movement mechanism comprises a shoulder width adjustment rod, a two-way nut tube, a swing arm rod, an arm binding member, a shoulder width adjustment driving member and a swing arm driving member. The two coaxially arranged shoulder width adjustment rods both form a sliding pair with the bottom surface of the backboard. The two shoulder width adjustment rods are arranged on the backboard in a centered manner, and the axis is parallel to the width direction of the bed frame. The opposite ends of the two shoulder width adjustment rods are provided with external threads with opposite rotation directions. The two-way nut tube located between the two shoulder width adjustment rods and the backboard form a rotating pair. The two-way nut tube is driven by the shoulder width adjustment driving member. The two ends of the inner wall of the two-way nut tube are provided with internal threads with opposite rotation directions. The internal threads at the two ends of the inner wall of the two-way nut tube and the external threads on the two shoulder width adjustment rods respectively form a spiral pair. The inner ends of the two swing arm rods are respectively hinged to the opposite ends of the two shoulder width adjustment rods through the seventh hinge shaft. The two swing arm rods are driven by the swing arm driving member. The two arm binding members are respectively fixed to the outer ends of the two swing arm rods. The two arm binding members are respectively located in two clearance grooves on the backboard.

[0007] Furthermore, the distance from the axis of the first hinge axis to the working side of the limiting bevel block is equal to the distance from the bottom surface of the leg plate to the axis of the first hinge axis. The distance from the axis of the third hinge axis to the axis of the fourth hinge axis is equal to the distance from the axis of the second hinge axis to the axis of the fifth hinge axis. The distance from the axis of the second hinge axis to the axis of the third hinge axis is equal to the distance from the axis of the fourth hinge axis to the axis of the fifth hinge axis. The working side of the limiting bevel block is inclined upward and forms an angle of 60° with the horizontal plane. The distance from the axis of the sixth hinge axis to the second hinge axis is less than the distance from the axis of the sixth hinge axis to the fifth hinge axis.

[0008] Furthermore, the foot movement mechanism also includes a locking electromagnet. The two locking electromagnets are fixed to the tail end of the top of the bed frame. The outer ends of the top surfaces of the two footboards are embedded with locking iron blocks. The two locking iron blocks correspond to the positions of the two locking electromagnets.

[0009] Furthermore, the backboard driving member includes a flip motor, a flip lead screw, a flip connecting rod, a flip slide and a flip slider. The flip slide is fixed to the bed frame. The flip lead screw is supported on the flip slide. The flip motor is fixed to the flip slide. The output shaft of the flip motor is fixed to one end of the flip lead screw. The flip slider forms a sliding pair with the flip slide and a spiral pair with the flip lead screw. One end of the flip connecting rod is hinged to the flip slider, and the other end is hinged to the backboard.

[0010] Furthermore, the shoulder width adjustment drive member includes a driving gear, a driven gear and a shoulder width adjustment motor. The shoulder width adjustment motor is fixed to the back plate. The driving gear and the driven gear are respectively fixed to the output shaft and the bidirectional nut tube of the shoulder width adjustment motor. The driving gear is meshed with the driven gear. The swing arm drive member includes a swing arm motor, a swing arm lead screw, a swing arm connecting rod, a swing arm slide and a swing arm slider. The swing arm slide is fixed to the back plate. The swing arm lead screw is supported on the swing arm slide, and the axis is located on the symmetry plane of the two swing arm rods. The swing arm motor is fixed on the swing arm slide. The output shaft of the swing arm motor is fixed to one end of the swing arm lead screw. The swing arm slider forms a sliding pair with the swing arm slide, and forms a spiral pair with the swing arm lead screw. One end of the two swing arm connecting rods is hinged to the swing arm slider, and the other end is hinged to the middle of the two swing arm rods respectively.

[0011] Furthermore, the cross section of the give way groove is composed of a first arc segment, a second arc segment, a first connecting line segment, a second connecting line segment, a third connecting line segment and a fourth connecting line segment. The center angle of the first arc segment is 120°, and the first endpoint is aligned with the center along the width direction of the back plate. The radius of the first arc segment is r1, 8mm≤r1≤20mm. The center angle of the second arc segment is 120°, and the first endpoint is aligned with the center along the width direction of the back plate. The radius of the first arc segment is r2. r2>r1. The center of the first arc segment is aligned with the center of the second arc segment along the length of the back plate. The first connecting line segment is arranged along the width direction of the back plate, and one end point coincides with the first end point of the first arc. The two end points of the second connecting line segment coincide with the first end point of the second arc segment and the other end point of the first connecting line segment, respectively. The third connecting line segment is arranged along the radial direction of the first arc segment, and one end point coincides with the second end point of the first arc. The two end points of the fourth connecting line segment coincide with the second end point of the second arc segment and the other end point of the third connecting line segment. The lengths of the first connecting line segment and the third connecting line segment are both a, a=r2-r1, 8mm≤a≤15mm. The lengths of the first connecting line segment and the third connecting line segment are both b, 8mm≤b≤20mm. The first arc groove on the two clearance groove cross sections is located between the second arc grooves on the two clearance groove cross sections.

[0012] Furthermore, the arm binding member is composed of a binding post and a binding strap. The binding post is fixed on the second rotating block. The inner ends of the two binding straps are fixed to the binding post, and Velcro is arranged on the outer ends. The side of the binding post away from the swing arm rod is flush with the top surface of the back plate.

[0013] Furthermore, in the initial state, the back plate, hip plate, leg plate and foot plate are all arranged horizontally; the two locking electromagnets are respectively attracted with the locking iron blocks on the two foot plates; the first limit electromagnet is respectively attracted with the first limit iron blocks on the two first hinge rods. The two slot filling plates are respectively located in the two clearance slots of the back plate, and the placement notches on the slot filling plates and the inner side walls of the clearance slots are combined to form an arm tie placement space. The two arm tie members are respectively located in the two arm tie placement spaces.

[0014] The auxiliary exercise method of the auxiliary exercise bed is specifically as follows:

[0015] Step 1: Two electric push rods are pushed out synchronously, so that the two leg boards and the two second hinge rods are turned over, and the two foot boards keep moving horizontally. At the same time, the backboard driving member moves, so that the backboard is turned upward.

[0016] Step 2: After both leg plates are in contact with the limit inclined blocks, the two electric push rods stop moving, and the two second limit electromagnets are energized to engage with the second limit iron blocks on the two leg plates. After the back plate is flipped to a state where it forms an angle θ with the horizontal plane, the back plate drive member stops moving.

[0017] Step 3: The shoulder width adjustment driving member moves so that the distance between the two seventh hinge axis axes is equal to the chest width of the user.

[0018] Step 4: The swing arm driving member moves so that the two swing arm rods are parallel to the width direction of the backboard. Then, the two arm binding members are fixed to the two upper arms of the user respectively.

[0019] Step 5. Perform foot-assisted exercises and shoulder-assisted exercises simultaneously.

[0020] Step 6: Untie the straps on the two arm binding pieces and fix them to the two upper arms of the user. The shoulder width adjustment motor and the swing arm motor rotate synchronously, so that the two arm binding pieces and the placement gaps on the two slot filling plates are aligned along the circumference of the first hinge axis.

[0021] Step 7: The two electric push rods are retracted synchronously, so that the two leg boards and the two second hinge rods are turned over until the two leg boards are in a horizontal state. At the same time, the backboard driving member moves, so that the backboard is turned downward until the backboard is in a horizontal state.

[0022] The specific principles of foot-assisted exercise are as follows:

[0023] (1) The two first limit electromagnets are powered off, and the two second limit electromagnets are powered on. One of the two electric push rods serves as the first electric push rod, and the other serves as the second electric push rod.

[0024] (2) The first electric push rod retracts until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane.

[0025] (3) The second electric push rod is retracted until the foot plate corresponding to the second electric push rod forms an angle of 0.5θ with the horizontal plane. At the same time, the first electric push rod is pushed out until the foot plate corresponding to the first electric push rod returns to a horizontal state.

[0026] (4) The first electric push rod is retracted until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane. At the same time, the second electric push rod is pushed out until the foot plate corresponding to the second electric push rod returns to a horizontal state.

[0027] (5) After repeating steps (3) and (4) n times, where n ≤ 100, proceed to step (6)

[0028] (6) The first electric push rod is pushed out, so that the foot plate corresponding to the first electric push rod returns to a horizontal state.

[0029] (7) The two first limit electromagnets are energized, and the two second limit electromagnets are de-energized.

[0030] (8) The first electric push rod retracts until the leg plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane.

[0031] (9) The second electric push rod is retracted until the foot plate corresponding to the second electric push rod forms an angle of 0.5θ with the horizontal plane. At the same time, the first electric push rod is pushed out until the foot plate corresponding to the first electric push rod contacts the working side surface of the limiting inclined block.

[0032] (10) The first electric push rod is retracted until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane. At the same time, the second electric push rod is pushed out until the foot plate corresponding to the second electric push rod contacts the working side surface of the limiting inclined block.

[0033] (11) After repeating steps (9) and (10) n times, proceed to step (12).

[0034] (12) The first electric push rod is pushed out until the foot plate corresponding to the first electric push rod contacts the working side surface of the limiting inclined block. The foot auxiliary movement ends.

[0035] The specific principles of shoulder auxiliary exercise are as follows:

[0036] (1) The swing arm driving member moves, causing the swing arm rod to flip to be parallel to the width direction of the bed frame.

[0037] (2) The swing arm driving member moves, causing the swing arm rod to flip to be parallel to the width direction of the back plate.

[0038] (3) After repeating steps (1) and (2) n times, the shoulder auxiliary exercise ends.

[0039] The present invention has the following beneficial effects:

[0040] 1. The present invention can be used as an ordinary bed, and can also assist the user to sit up and perform auxiliary exercises on the shoulder joint, knee joint and ankle joint. Thus, the disabled can perform joint exercises without leaving the bed.

[0041] 2. The leg board of the present invention is located exactly at the dead point of the parallelogram mechanism in the initial state, so that the force acting on the leg board alone cannot drive it to move, which greatly enhances the load-bearing capacity of the present invention when used as an ordinary bed.

[0042] 3. The present invention achieves auxiliary movement of the knee joint and ankle joint by changing the fixed rod of the parallelogram mechanism, thereby completing two different leg movements with the same power source.

[0043] 4. The present invention can adjust the distance between the two swing arm bars, so that the swing arm bars can imitate the upper arm movement trajectory of users with different shoulder widths, thereby meeting the needs of users of different heights and body shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1It is a three-dimensional schematic diagram of the present invention in an initial state;

[0045] Figure 2 It is a top view schematic diagram of the present invention in an initial state;

[0046] Figure 3 It is a three-dimensional schematic diagram of the present invention in a state of performing auxiliary movement;

[0047] Figure 4 It is a side schematic diagram of the present invention in a state of performing auxiliary movement;

[0048] Figure 5 It is a schematic diagram of the cross section of the clearance groove in the present invention.

[0049] Figure 6 It is a schematic diagram of the structure of the shoulder motion mechanism in the present invention.

[0050] Figure 7 It is a top view schematic diagram of the shoulder motion mechanism in the present invention. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with the accompanying drawings.

[0052] like Figure 1 , 2As shown in Figure 5, an auxiliary motion bed includes a bed frame 1, a bed board assembly 2, a foot motion mechanism 3, a backboard driving member 4 and a shoulder motion mechanism 5. The bed board assembly 2 includes a backboard 2-1, a slot filling plate 2-2, a hip board 2-3, a leg board 2-4 and a foot board 2-5. The hip board 2-3 is fixed to the middle of the bed frame 1. The inner edge of the backboard 2-1 is hinged to one side edge of the hip board 2-3. The inner ends of the two leg boards 2-4 are hinged to the other side edge of the hip board 2-3 through a first hinge shaft. The outer ends of the two leg boards 2-4 are hinged to the inner ends of the two foot boards 2-5 through a second hinge shaft. The length of the leg board 2-4 is equal to 500 mm. Two centrally arranged clearance grooves are provided on the backboard 2-1. The cross section of the clearance groove is composed of the first arc segment 2-1-1, the second arc segment 2-1-2, the first connecting line segment 2-1-3, the second connecting line segment 2-1-4, the third connecting line segment 2-1-5 and the fourth connecting line segment 2-1-6. The center angle of the first arc segment 2-1-1 is 120°, and the first endpoint is aligned with the center along the width direction of the back plate (that is, the connecting line is perpendicular to the axis of the first hinge shaft). The radius of the first arc segment 2-1-1 is r1, r1=16mm. The center angle of the second arc segment 2-1-2 is 120°, and the first endpoint is aligned with the center along the width direction of the back plate (that is, the connecting line is perpendicular to the axis of the first hinge shaft). The radius of the first arc segment 2-1-1 is r2. r2>r1. The center of the first arc segment 2-1-1 is aligned with the center of the second arc segment 2-1-2 along the length of the back plate. The first connecting line segment 2-1-3 is arranged along the width direction of the back plate, and one end point coincides with the first end point of the first arc. The two end points of the second connecting line segment 2-1-4 coincide with the first end point of the second arc segment 2-1-2 and the other end point of the first connecting line segment 2-1-3, respectively. The third connecting line segment 2-1-5 is arranged along the radial direction of the first arc segment 2-1-1, and one end point coincides with the second end point of the first arc. The two end points of the fourth connecting line segment 2-1-6 coincide with the second end point of the second arc segment 2-1-2 and the other end point of the third connecting line segment 2-1-5, respectively. The lengths of the first connecting line segment 2-1-3 and the third connecting line segment 2-1-5 are both a, a=r2-r1=12mm. The lengths of the first connecting line segment 2-1-3 and the third connecting line segment 2-1-5 are both b (b is the shoulder width adjustment range), b=10mm.

[0053] The first arc groove on the cross section of the two clearance grooves is located between the second arc grooves on the cross section of the two clearance grooves. The two slot filling plates 2-2 are fixed on the bed frame in a centered manner and are aligned with the two clearance grooves on the back plate along the circumferential direction of the first hinge axis. A placement notch is provided on the slot filling plate 2-2. The back plate 2-1, the slot filling plate 2-2, the hip plate 2-3, the leg plate 2-4 and the foot plate 2-5 constitute a bed plate that can assist the user to sit up. When the back plate 2-1 is horizontal, the two slot filling plates 2-2 are respectively located in the two clearance grooves on the back plate, and the placement notch on the slot filling plate 2-2 and the corresponding side of the first arc segment 2-1-1 and the corresponding side of the third line segment of the clearance groove are combined to form a placement space for the arm tie 5-4. This prevents the user from feeling uncomfortable due to the presence of the clearance groove when lying on the bed plate assembly.

[0054] like Figure 1 , 2 As shown in Figures 3 and 4, the foot movement mechanism 3 includes a limiting inclined block 3-1, a first limiting electromagnet 3-2, a second limiting electromagnet, an electric push rod 3-3, a locking electromagnet 3-4, a first hinge rod 3-5, a second hinge rod 3-6 and a push rod frame 3-7. The two first hinge rods 3-5 are respectively located on both sides of the top of the bed frame 1, and one end of the first hinge rods 3-5 is respectively hinged to the inner ends of the two leg boards 2-4 through the third hinge axis, and the other end is respectively hinged to one end of the two second hinge rods 3-6 through the fourth hinge axis. The other ends of the two second hinge rods 3-6 are respectively hinged to the outer ends of the two foot boards 2-5 through the fifth hinge axis. The axis of the first hinge axis is colinear with the axis of the third hinge axis. The distance from the axis of the third hinge axis to the axis of the fourth hinge axis is equal to the distance from the axis of the second hinge axis to the axis of the fifth hinge axis. The distance from the axis of the second hinge axis to the axis of the third hinge axis is equal to the distance from the axis of the fourth hinge axis to the axis of the fifth hinge axis. Thus, the first hinge rod 3-5, the second hinge rod 3-6, the leg plate 2-4 and the foot plate 2-5 form a parallelogram mechanism.

[0055] The two first limit electromagnets 3-2 are fixed to both sides of the top of the bed frame 1, and are respectively located below the two first hinge rods 3-5. A first limit iron block is embedded on the side of the first hinge rod 3-5 close to the corresponding first limit electromagnet 3-2. The first limit electromagnet 3-2 and the first limit iron block are attracted to each other, so that the first hinge rod 3-5 can be fixed to the bed frame 1, thereby becoming a fixed rod in the parallelogram mechanism.

[0056] The limiting bevel block 3-1 is fixed to the bed frame 1 and is located below the hip board 2-3. The working side of the limiting bevel block 3-1 near the rear end of the bed frame 1 is tilted upward and forms an angle of 60° with the horizontal plane. The distance from the axis of the first hinge shaft to the working side of the limiting bevel block 3-1 is equal to the distance from the bottom surface of the leg board 2-4 to the axis of the first hinge shaft. The limiting bevel block 3-1 can limit the leg board 2-4 to a position at an angle of 60° with the horizontal plane.

[0057] Two second limiting electromagnets are embedded on the working side of the limiting inclined block 3-1. Second limiting iron blocks are embedded on the bottom surfaces of the two leg plates 2-4. The two second limiting electromagnets and the two second limiting iron blocks are respectively aligned along the circumferential direction of the first hinge axis. Through the attraction of the second limiting electromagnet and the second limiting iron block, the leg plate 2-4 can be fixed to the bed frame 1, thereby becoming a fixed rod in the parallelogram mechanism.

[0058] The bottom ends of the two push rod frames 3-7 are fixed to the tail ends of the top of the bed frame 1, and the top ends and the outer shells of the two electric push rods 3-3 respectively form a revolving pair. The push rods of the two electric push rods 3-3 are respectively hinged to the top surfaces of the two footboards 2-5 through the sixth hinge axis. The distance from the axis of the sixth hinge axis to the second hinge axis is smaller than the distance from the axis of the sixth hinge axis to the fifth hinge axis. When the first limit electromagnet 3-2 is attracted with the first limit iron block, the extension and retraction of the electric push rod 3-3 can drive the two legboards 2-4 to maintain horizontal movement, so that the soles of the feet of the user can have horizontal support after sitting up. When the second limit electromagnet is attracted with the second limit iron block, the extension and retraction of the electric push rod 3-3 can drive the two legboards 2-4 to flip, thereby realizing auxiliary movement of the user's ankle joints.

[0059] The two locking electromagnets 3-4 are fixed at the tail end of the top of the bed frame 1. The outer ends of the top surfaces of the two footboards 2-5 are embedded with locking iron blocks. The two locking iron blocks correspond to the positions of the two locking electromagnets 3-4, that is, when the footboard 2-5 and the legboard 2-4 are both horizontal, the locking iron blocks are in contact with the locking electromagnets 3-4.

[0060] like Figure 1 , 2 As shown in 4, the backboard driving member 4 includes a flip motor 4-1, a flip lead screw, a flip connecting rod 4-2, a flip slide 4-3 and a flip slider 4-4. The flip slide 4-3 arranged along the length direction of the bed frame 1 is fixed to the bed frame 1. The flip lead screw is supported on the flip slide 4-3 and is located directly below the backboard 2-1. The flip motor 4-1 is fixed on the flip slide 4-3. The output shaft of the flip motor 4-1 is fixed to one end of the flip lead screw. The middle part of the flip slider 4-4 forms a sliding pair with the flip slide 4-3, and forms a spiral pair with the flip lead screw. One end of the two flip connecting rods 4-2 is hinged to the two ends of the flip slider 4-4 respectively, and the other end is hinged to the two end edges of the bottom surface of the backboard 2-1. The backboard 2-1 can be driven to flip by the rotation of the flip motor 4-1.

[0061] like Figure 1 , 3As shown in Figures 4, 6 and 7, the shoulder movement mechanism 5 includes a shoulder width adjustment rod 5-1, a two-way nut tube 5-2, a swing arm rod 5-3, an arm binding member 5-4, a shoulder width adjustment driver and a swing arm driver. The two coaxially arranged shoulder width adjustment rods 5-1 both form a sliding pair with the bottom surface of the backboard. The two shoulder width adjustment rods 5-1 are centrally arranged on the backboard, and the axis is parallel to the width direction of the bed frame. The opposite ends of the two shoulder width adjustment rods 5-1 are provided with external threads with opposite rotation directions. The two-way nut tube 5-2 located between the two shoulder width adjustment rods 5-1 forms a rotation pair with the backboard. The two ends of the inner wall of the two-way nut tube 5-2 are provided with internal threads with opposite rotation directions. The internal threads at the two ends of the inner wall of the two-way nut tube 5-2 and the external threads on the two shoulder width adjustment rods 5-1 respectively form a spiral pair. When the two-way nut tube 5-2 rotates, the two shoulder width adjustment rods 5-1 slide simultaneously in opposite directions. The inner ends of the two swing arm rods 5-3 are hinged to the opposite ends of the two shoulder width adjustment rods 5-1 through the seventh hinge axis. The arm binding member 5-4 is composed of a binding column and a binding strap. The binding column is fixed on the second rotating block. The inner ends of the two binding straps are fixed to the binding column, and Velcro is provided on the outer ends. The binding columns in the two arm binding members 5-4 are fixed to the outer ends of the two swing arm rods 5-3 respectively. The two arm binding members 5-4 are respectively located in two clearance grooves on the back plate. The side of the binding column away from the swing arm rod 5-3 is flush with the top surface of the back plate. The diameter of the binding column is less than or equal to a.

[0062] The shoulder width adjustment drive unit includes a driving gear 5-5, a driven gear 5-6 and a shoulder width adjustment motor 5-7. The shoulder width adjustment motor 5-7 is fixed to the back plate. The driving gear 5-5 and the driven gear 5-6 are fixed to the output shaft of the shoulder width adjustment motor 5-7 and the two-way nut tube 5-2 respectively. The driving gear 5-5 is meshed with the driven gear 5-6. The swing arm drive unit includes a swing arm motor 5-8, a swing arm lead screw 5-9, a swing arm connecting rod 5-10, a swing arm slide 5-11 and a swing arm slider 5-12. The swing arm slide 5-11 arranged along the width direction of the back plate is fixed to the back plate. The swing arm lead screw 5-9 is supported on the swing arm slide 5-11, and the axis is located on the symmetry plane of the two swing arm rods 5-3. The swing arm motor 5-8 is fixed on the swing arm slide 5-11. The output shaft of the swing arm motor 5-8 is fixed to one end of the swing arm lead screw 5-9. The swing arm slider 5-12 forms a sliding pair with the swing arm carriage 5-11, and forms a spiral pair with the swing arm lead screw 5-9. One end of the two swing arm connecting rods 5-10 is hinged to the swing arm slider 5-12, and the other end is hinged to the middle of the two swing arm rods 5-3 respectively. The rotation of the swing arm motor 5-8 can drive the two swing arm rods 5-3 to turn over synchronously in opposite directions.

[0063] The shoulder movement mechanism 5 can adjust the distance between the two swing arm rods 5 - 3 , so that the swing arm rods 5 - 3 can imitate the upper arm swing trajectory of users with different shoulder widths, thereby realizing auxiliary movement of the shoulder joint.

[0064] In the initial state, the back plate 2-1, the hip plate 2-3, the leg plate 2-4 and the foot plate 2-5 are all arranged horizontally; the two locking electromagnets 3-4 are respectively attracted with the locking iron blocks on the two foot plates 2-5; the first limit electromagnet 3-2 is respectively attracted with the first limit iron blocks on the two first hinge rods 3-5; at this time, the first hinge rod 3-5, the second hinge rod 3-6, the leg plate 2-4 and the foot plate 2-5 are connected in a straight line, and the parallelogram mechanism reaches the dead point state, and the force acting on the leg plate 2-4 or the second hinge rod 3-6 alone cannot drive the parallelogram mechanism to move. When the user lies flat, the foot is only in contact with the leg plate 2-4, the foot plate 2-5 is subjected to very little force, and the force acting on the leg plate 2-4 cannot drive the parallelogram to move, so the design of the dead point of the parallelogram mechanism can greatly enhance the load capacity of the present invention in the initial state.

[0065] In addition, in the initial state, the arm tie 5-4 is located in the arm tie 5-4 placement space formed by the placement gap on the corresponding slot filling plate 2-2 and the corresponding clearance groove (under the cooperation of the shoulder width adjustment drive and the swing arm drive, the arm tie 5-4 can reach any position in the clearance groove, so the arm tie 5-4 can be aligned with the arm tie 5-4 placement space). Since the arm tie 5-4 is flush with the backboard, the gap caused by the arm tie 5-4 placement space is filled by the arm tie 5-4, thereby improving the comfort level of the present invention when used as an ordinary bed body.

[0066] The auxiliary exercise method of the auxiliary exercise bed is specifically as follows:

[0067] Step 1: The locking electromagnet 3-4 is powered off, and the two electric push rods 3-3 are pushed out synchronously, so that the two leg boards 2-4 and the two second hinge rods 3-6 are turned over, and the two foot boards 2-5 keep moving horizontally. At the same time, the turning motor 4-1 rotates, so that the back board 2-1 turns upward. The user gradually sits up with the movement of the back board 2-1, the leg boards 2-4 and the foot boards 2-5.

[0068] Step 2: After both leg plates 2-4 are in contact with the limit inclined block 3-1, the two electric push rods 3-3 stop moving, and the two second limit electromagnets are energized to engage with the second limit iron blocks on the two leg plates 2-4. After the back plate 2-1 is flipped to a state where it forms an angle of 60° with the horizontal plane, the flip motor 4-1 stops rotating. At this time, the user is in a completely sitting state (the back forms an angle of 60° with the horizontal plane, and the calf forms an angle of 60° with the horizontal plane).

[0069] Step 3: The shoulder width adjustment motor 5-7 rotates so that the distance between the axes of the two seventh hinge shafts (the hinge shafts of the swing arm rod 5-3 and the shoulder width adjustment rod 5-1) is equal to the chest width of the user (the distance between the two armpits).

[0070] Step 4: The swing arm motor 5-8 rotates so that the two swing arm rods 5-3 are parallel to the width direction of the backboard (the direction perpendicular to the axis of the first hinge shaft). After that, the swing arm motor 5-8 stops rotating, and the straps on the two arm binding members 5-4 are used to bind the two upper arms of the user respectively.

[0071] Step 5. Perform foot-assisted exercises and shoulder-assisted exercises simultaneously.

[0072] Step 6: Untie the straps on the two arm-binding pieces 5-4 and fix them to the two upper arms of the user. The shoulder width adjustment motor 5-7 and the swing arm motor 5-8 rotate synchronously, so that the arm-binding piece 5-4 moves to contact the corresponding side surface of the first arc segment 2-1-1 and the corresponding side surface of the third line segment of the clearance groove at the same time. At this time, the arm-binding piece 5-4 is aligned with the placement gap on the corresponding empty slot filling plate along the circumference of the first hinge axis.

[0073] Step 7: The two electric push rods 3-3 are retracted synchronously, so that the two leg plates 2-4 and the two second hinge rods 3-6 are turned over, and the two foot plates 2-5 keep moving horizontally until the leg plates 2-4 reach a horizontal state. At the same time, the turning motor 4-1 rotates, so that the back plate 2-1 turns downward, until the back plate 2-1 reaches a horizontal state. After that, the locking electromagnet 3-4 is energized.

[0074] The specific principles of foot-assisted exercise are as follows:

[0075] (1) The two first limit electromagnets 3-2 are powered off, and the two second limit electromagnets are powered on. At this time, the fixed rod in the parallelogram mechanism composed of the first hinge rod 3-5, the second hinge rod 3-6, the leg plate 2-4, and the foot plate 2-5 is changed from the first hinge rod 3-5 to the leg plate 2-4, and the movement mode of the foot plate 2-5 is changed from moving in a horizontal state to flipping motion. One of the two electric push rods 3-3 serves as the first electric push rod 3-3, and the other serves as the second electric push rod 3-3.

[0076] (2) The first electric push rod 3-3 retracts until the foot plate 2-5 corresponding to the first electric push rod 3-3 forms an angle of 30° with the horizontal plane.

[0077] (3) The second electric push rod 3-3 is retracted until the foot plate 2-5 corresponding to the second electric push rod 3-3 forms an angle of 30° with the horizontal plane. At the same time, the first electric push rod 3-3 is pushed out until the foot plate 2-5 corresponding to the first electric push rod 3-3 returns to a horizontal state.

[0078] (4) The first electric push rod 3-3 is retracted until the foot plate 2-5 corresponding to the first electric push rod 3-3 forms an angle of 30° with the horizontal plane. At the same time, the second electric push rod 3-3 is pushed out until the foot plate 2-5 corresponding to the second electric push rod 3-3 returns to a horizontal state.

[0079] (5) Repeat steps (3) and (4) ten times, then proceed to step (6)

[0080] (6) The first electric push rod 3-3 is pushed out, so that the foot plate 2-5 corresponding to the first electric push rod 3-3 returns to a horizontal state.

[0081] (7) The two first limit electromagnets 3-2 are energized, and the two second limit electromagnets are de-energized, so that the fixed rod in the parallelogram mechanism composed of the first hinge 3-5, the second hinge 3-6, the leg plate 2-4, and the foot plate 2-5 is changed from the leg plate 2-4 to the first hinge 3-5, and the movement mode of the foot plate 2-5 is changed from flipping motion to moving in a horizontal state.

[0082] (8) The first electric push rod 3-3 retracts until the leg plate 2-4 corresponding to the first electric push rod 3-3 forms an angle of 30° with the horizontal plane.

[0083] (9) The second electric push rod 3-3 is retracted until the foot plate 2-5 corresponding to the second electric push rod 3-3 forms an angle of 30° with the horizontal plane. At the same time, the first electric push rod 3-3 is pushed out until the foot plate 2-5 corresponding to the first electric push rod 3-3 contacts the working side surface of the limiting inclined block 3-1.

[0084] (10) The first electric push rod 3-3 is retracted until the foot plate 2-5 corresponding to the first electric push rod 3-3 forms an angle of 30° with the horizontal plane. At the same time, the second electric push rod 3-3 is pushed out until the foot plate 2-5 corresponding to the second electric push rod 3-3 contacts the working side surface of the limiting inclined block 3-1.

[0085] (11) After repeating steps (9) and (10) ten times, proceed to step (12).

[0086] (12) The first electric push rod 3-3 is pushed out until the foot plate 2-5 corresponding to the first electric push rod 3-3 contacts the working side surface of the limiting inclined block 3-1. The foot auxiliary movement ends.

[0087] The specific principles of shoulder auxiliary exercise are as follows:

[0088] (1) The swing arm motor rotates forward, causing the swing arm rod to flip to be parallel to the width direction of the bed frame, thereby driving the user's upper arm to swing to a state flush with the shoulder.

[0089] (2) The swing arm motor is reversed, causing the swing arm rod to flip to be parallel to the width direction of the backboard, thereby driving the user's upper arm to swing to a state that fits the side of the body.

[0090] (3) After repeating steps (1) and (2) ten times, the shoulder-assisted exercise is completed.

Claims

1. An auxiliary sports bed, comprising a bed frame, a bed board assembly, a foot movement mechanism, a backboard drive member and a shoulder movement mechanism; characterized in that: The bed board assembly comprises a back board, a slot filling board, a hip board, a leg board and a foot board; the hip board is fixed to the bed frame; the inner edge of the back board is hinged to one side edge of the hip board; the back board is driven by a back board driving member; the inner ends of the two leg boards are hinged to the other side edge of the hip board through a first hinge shaft; the outer ends of the two leg boards are hinged to the inner ends of the two foot boards through a second hinge shaft respectively; two clearance grooves are provided on the back board; the two slot filling boards are centrally fixed on the bed frame and are respectively aligned with the two clearance grooves on the back board along the circumferential direction of the first hinge axis; a placement notch is provided on the slot filling board; The foot movement mechanism includes a limiting inclined block, a first limiting electromagnet, a second limiting electromagnet, an electric push rod, a first hinge rod, a second hinge rod and a push rod frame; the two first hinge rods are respectively located on both sides of the bed frame, and one end of the first hinge rods is respectively hinged to the inner ends of the two leg boards through the third hinge shaft, and the other end is respectively hinged to one end of the two second hinge rods through the fourth hinge shaft; the other ends of the two second hinge rods are respectively hinged to the outer ends of the two foot boards through the fifth hinge shaft; the axis of the first hinge shaft is collinear with the axis of the third hinge shaft; the two first limiting electromagnets are respectively fixed to the two sides of the bed frame, and are respectively located below the two first hinge rods; the first limiting iron blocks are fixed on the two first hinge rods; the limiting inclined block is fixed to the bed frame and is located below the hip board; the working side surface of the limiting inclined block is inclined upward, and the angle with the horizontal plane is θ, 40°≤θ≤70°; two second limiting electromagnets are embedded on the working side surface of the limiting inclined block; the second limiting iron blocks are fixed on the bottom surfaces of the two leg boards; the shells of the two electric push rods form a rotating pair with the tail end of the bed frame; the push rods of the two electric push rods are hinged to the top surfaces of the two foot boards through the sixth hinge shaft respectively; The shoulder movement mechanism comprises a shoulder width adjustment rod, a two-way nut tube, a swing arm rod, an arm binding member, a shoulder width adjustment driving member and a swing arm driving member; two coaxially arranged shoulder width adjustment rods both form a sliding pair with the bottom surface of the backboard; the two shoulder width adjustment rods are centrally arranged on the backboard, and the axis is parallel to the width direction of the bed frame; the opposite ends of the two shoulder width adjustment rods are provided with external threads of opposite rotation directions; the two-way nut tube located between the two shoulder width adjustment rods and the backboard form a rotating pair; the two-way nut tube is driven by the shoulder width adjustment driving member; the two ends of the inner wall of the two-way nut tube are provided with internal threads of opposite rotation directions; the internal threads at the two ends of the inner wall of the two-way nut tube and the external threads on the two shoulder width adjustment rods respectively form a spiral pair; the inner ends of the two swing arm rods are respectively hinged to the opposite ends of the two shoulder width adjustment rods through the seventh hinge shaft; the two swing arm rods are driven by the swing arm driving member; the two arm binding members are respectively fixed to the outer ends of the two swing arm rods; the two arm binding members are respectively located in the two give way grooves on the backboard; The foot movement mechanism also includes a locking electromagnet; two locking electromagnets are fixed to the tail end of the top of the bed frame; the outer ends of the top surfaces of the two footboards are embedded with locking iron blocks; the two locking iron blocks correspond to the positions of the two locking electromagnets respectively; The shoulder width adjustment driving member includes a driving gear, a driven gear and a shoulder width adjustment motor; the shoulder width adjustment motor is fixed to the back plate; the driving gear, the driven gear and the output shaft and the bidirectional nut tube of the shoulder width adjustment motor are respectively fixed; the driving gear is meshed with the driven gear.

2. The auxiliary exercise bed according to claim 1, characterized in that: The distance from the axis of the first hinge axis to the working side of the limiting bevel block is equal to the distance from the bottom surface of the leg plate to the axis of the first hinge axis; the distance from the axis of the third hinge axis to the axis of the fourth hinge axis is equal to the distance from the axis of the second hinge axis to the axis of the fifth hinge axis; the distance from the axis of the second hinge axis to the axis of the third hinge axis is equal to the distance from the axis of the fourth hinge axis to the axis of the fifth hinge axis; the working side of the limiting bevel block is inclined upward and forms an angle of 60° with the horizontal plane; the distance from the axis of the sixth hinge axis to the second hinge axis is smaller than the distance from the axis of the sixth hinge axis to the fifth hinge axis.

3. The auxiliary exercise bed according to claim 1, characterized in that: The back plate driving component includes a flip motor, a flip lead screw, a flip connecting rod, a flip slide and a flip slider; the flip slide is fixed to the bed frame; the flip lead screw is supported on the flip slide; the flip motor is fixed on the flip slide; the output shaft of the flip motor is fixed to one end of the flip lead screw; the flip slider forms a sliding pair with the flip slide, and forms a spiral pair with the flip lead screw; one end of the flip connecting rod is hinged to the flip slider, and the other end is hinged to the back plate.

4. The auxiliary exercise bed according to claim 1, characterized in that: The swing arm driving component includes a swing arm motor, a swing arm lead screw, a swing arm connecting rod, a swing arm slide and a swing arm slider; the swing arm slide is fixed to the back plate; the swing arm lead screw is supported on the swing arm slide, and the axis is located on the symmetry plane of the two swing arm rods; the swing arm motor is fixed on the swing arm slide; the output shaft of the swing arm motor is fixed to one end of the swing arm lead screw; the swing arm slider forms a sliding pair with the swing arm slide, and forms a spiral pair with the swing arm lead screw; one end of the two swing arm connecting rods are hinged to the swing arm slider, and the other end is hinged to the middle part of the two swing arm rods respectively.

5. The auxiliary exercise bed according to claim 1, characterized in that: The cross section of the clearance groove consists of a first arc segment, a second arc segment, a first connecting line segment, a second connecting line segment, a third connecting line segment and a fourth connecting line segment; the center angle of the first arc segment is 120°, and the first endpoint is aligned with the center along the width direction of the back plate; the radius of the first arc segment is r1, 8mm≤r1≤20mm; the center angle of the second arc segment is 120°, and the first endpoint is aligned with the center along the width direction of the back plate; the radius of the first arc segment is r2; r2>r1; the center of the first arc segment is aligned with the center of the second arc segment along the length of the back plate; the first connecting line segment is set along the width direction of the back plate, and one end point coincides with the first end point of the first arc; the two end points of the second connecting line segment coincide with the first end point of the second arc segment and the other end point of the first connecting line segment respectively; The third connecting line segment is arranged along the radial direction of the first arc segment, and one end point coincides with the second end point of the first arc; the two end points of the fourth connecting line segment coincide with the second end point of the second arc segment and the other end point of the third connecting line segment respectively; the lengths of the first connecting line segment and the third connecting line segment are both a, a=r2-r1, 8mm≤a≤15mm; the lengths of the first connecting line segment and the third connecting line segment are both b, 8mm≤b≤20mm; the first arc groove on the two make way groove cross sections is located between the second arc grooves on the two make way groove cross sections.

6. The auxiliary exercise bed according to claim 1, characterized in that: The arm binding member is composed of a binding post and a binding strap; the binding post is fixed on the second rotating block; the inner ends of the two binding straps are fixed to the binding post, and Velcro is arranged on the outer ends; the side of the binding post away from the swing arm rod is flush with the top surface of the back plate.

7. The auxiliary exercise bed according to claim 1, characterized in that: In the initial state, the backboard, hip board, leg board and footboard are all arranged horizontally; the two locking electromagnets are respectively attracted to the locking iron blocks on the two footboards; the first limit electromagnet is respectively attracted to the first limit iron blocks on the two first hinge rods; the two empty slot filling plates are respectively located in the two makeshift slots on the backboard, and the placement notches on the empty slot filling plates and the inner side walls of the makeshift slots are combined to form an arm binding member placement space; the two arm binding members are respectively located in the two arm binding member placement spaces.

8. The auxiliary exercise method of an auxiliary exercise bed according to claim 1, characterized in that: Step 1: The two electric push rods are pushed out synchronously, so that the two leg boards and the two second hinge rods are turned over, and the two foot boards keep moving horizontally; at the same time, the backboard driving member moves, so that the backboard is turned upward; Step 2: After both leg plates are in contact with the limit inclined blocks, the two electric push rods stop moving, and the two second limit electromagnets are energized to engage with the second limit iron blocks on the two leg plates; after the back plate is flipped to a state where it forms an angle θ with the horizontal plane, the back plate driving member stops moving; Step 3: The shoulder width adjustment driving member moves so that the distance between the two seventh hinge axis axes is equal to the chest width of the user; Step 4: Move the swing arm driving member so that the two swing arm rods are parallel to the width direction of the backboard; then, fix the two arm binding members to the two upper arms of the user respectively; Step 5: Perform auxiliary exercises for the feet and shoulders simultaneously; Step 6: Untie the straps on the two arm-binding pieces and fix them relatively to the two upper arms of the user; the shoulder width adjustment motor and the swing arm motor rotate synchronously, so that the two arm-binding pieces and the placement gaps on the two slot-filling plates are respectively aligned along the circumference of the first hinge axis; Step 7: The two electric push rods are retracted synchronously, so that the two leg boards and the two second hinge rods are flipped until the two leg boards are in a horizontal state; at the same time, the backboard driving member moves, so that the backboard is flipped downward until the backboard is in a horizontal state; The specific principles of foot-assisted exercise are as follows: (1) The two first limit electromagnets are powered off, and the two second limit electromagnets are powered on; one of the two electric push rods serves as the first electric push rod, and the other serves as the second electric push rod; (2) The first electric push rod is retracted until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane; (3) The second electric push rod retracts until the foot plate corresponding to the second electric push rod forms an angle of 0.5θ with the horizontal plane; at the same time, the first electric push rod is pushed out until the foot plate corresponding to the first electric push rod returns to a horizontal state; (4) The first electric push rod retracts until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane; at the same time, the second electric push rod is pushed out until the foot plate corresponding to the second electric push rod returns to a horizontal state; (5) After repeating steps (3) and (4) n times, where n ≤ 100, proceed to step (6) (6) The first electric push rod is pushed out, so that the foot plate corresponding to the first electric push rod returns to a horizontal state; (7) The two first limit electromagnets are powered on, and the two second limit electromagnets are powered off; (8) The first electric push rod retracts until the leg plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane; (9) The second electric push rod retracts until the foot plate corresponding to the second electric push rod forms an angle of 0.5θ with the horizontal plane; at the same time, the first electric push rod is pushed out until the foot plate corresponding to the first electric push rod contacts the working side surface of the limiting inclined block; (10) The first electric push rod retracts until the foot plate corresponding to the first electric push rod forms an angle of 0.5θ with the horizontal plane; at the same time, the second electric push rod is pushed out until the foot plate corresponding to the second electric push rod contacts the working side surface of the limiting inclined block; (11) After repeating steps (9) and (10) n times, proceed to step (12); (12) The first electric push rod is pushed out until the foot plate corresponding to the first electric push rod contacts the working side surface of the limiting inclined block; the foot auxiliary movement ends; The specific principles of shoulder auxiliary exercise are as follows: (1) The swing arm driving member moves, causing the swing arm rod to flip to be parallel to the width direction of the bed frame; (2) The swing arm driving member moves, causing the swing arm rod to flip to be parallel to the width direction of the back plate; (3) After repeating steps (1) and (2) n times, the shoulder auxiliary exercise ends.

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