A smart bed that simulates natural rocking curves

Abstract

The present invention discloses a smart bed simulating a natural swing curve, comprising a control system, a support frame group, a swing frame group and a driving mechanism, wherein the support frame group and the swing frame group are connected by a parallelogram mechanism; the smart bed is also provided with a first position sensor and a second position sensor, wherein the first position sensor, the second position sensor and the driving mechanism are all electrically connected to the control system; the swing frame group has a locked state, a natural swing state and an autonomous swing state; the control system controls the pusher to move to abut against the pushed member according to the position information fed back by the first position sensor and the second position sensor at this time, and pushes the pushed member to move so that the height of the end of the reverse swing of the swing frame group is equal to the height of the beginning of the forward swing of the swing frame group to form a natural swing state. When a user lies on the smart bed, the user can swing naturally under the action of gravity, and at the same time, the pusher can be driven by seamless contact with the pushed member to ensure that the smart bed can maintain a fixed natural swing amplitude.

Description

Technical Field

[0001] The present invention relates to the field of smart beds, and in particular to a smart bed that simulates a natural rocking curve. Background Art

[0002] People pay more and more attention to the quality of sleep. Choosing a suitable bed can bring people a comfortable and healthy sleep. For this reason, various electric beds are constantly emerging in the market. Electric beds are a new type of bed with a changeable bed shape. Traditional electric beds include a flippable movable bed board and a driving device installed inside the electric bed, such as an electric push rod, which is used to lift and lower the flippable movable bed board to adjust the bed shape.

[0003] Studies have found that vestibular stimulation can not only relax the emotions of infants and young children, but is also effective for adults. Therefore, a bed with a cradle function can help people with insomnia relax and fall asleep quickly to a certain extent. In the prior art, the smart electric bed with a rocking function is driven by a motor throughout the rocking motion, that is, the motor drives the bed to swing to the left and to the right. Under this structure, the user will feel that the rocking motion is too stiff and unnatural when lying on the bed, which affects the user experience. In addition, due to the influence of the motor drive, the user cannot control the swing of the smart bed independently. The function is too single. In addition, the existing smart electric beds are usually disassembled into multiple parts during production and transportation, and then assembled by screwing. Under this structure, it is difficult to ensure assembly accuracy and assembly stability. Inaccurate assembly can easily cause abnormal noises in the smart electric bed, making it easy for parts to collide and be damaged, thereby affecting the service life of the smart electric bed.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a smart bed that simulates a natural swing curve, wherein a driving mechanism is provided on the support frame group, the driving mechanism includes a pushing member, and a pushed member is provided on the swing frame group, the pushing member can drive the pushed member to move and then drive the swing frame group to swing, and cooperate with the limit member provided on the support frame group, the control system can control the rotation of the pushing member according to the position information fed back by the first position sensor and the second position sensor, so that the swing frame group can be in a locked state, a natural swing state, and an autonomous swing state. In the locked state, the user will not swing when lying on the smart bed, in the autonomous swing state, the user can swing at will when lying on the smart bed, and in the natural swing state, the user can swing naturally under the action of gravity when lying on the smart bed, and at the same time, the pushing member can be driven by seamless contact with the pushed member to ensure that the smart bed can maintain a fixed natural swing amplitude, the structural design is ingenious, the comfort of the smart bed is improved, and the user experience can be improved.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An intelligent bed simulating a natural rocking curve comprises a control system, a support frame group, a rocking frame group and a driving mechanism for driving the rocking frame group to rock relative to the support frame group, wherein the support frame group and the rocking frame group are connected via a parallelogram mechanism so that the rocking frame group can rock relative to the support frame group;

[0008] The driving mechanism is arranged on the supporting frame group, and the driving mechanism is provided with a pushing member. Correspondingly, the swinging frame group is provided with a pushed member. The driving mechanism can drive the pushing member to move and then drive the pushed member to move, so that the swinging frame group can swing relative to the supporting frame group. The supporting frame group is provided with a limiting member for limiting the swinging of the swinging frame group.

[0009] The smart bed is also provided with a first position sensor for detecting the swing position of the swing frame group and a second position sensor for detecting the position of the pusher. The first position sensor, the second position sensor and the driving mechanism are all electrically connected to the control system. The control system can control the movement of the pusher according to the position information fed back by the first position sensor and the second position sensor.

[0010] Wherein, the swing frame group has a locked state, a natural swing state and an autonomous swing state; the driving mechanism drives the swing frame group to swing against the limit member through the cooperation of the pushing member and the pushed member, so that the swing of the swing frame group is limited by the pushing member and the limit member to form a locked state; the driving mechanism drives the pushing member to leave the activity range of the pushed member, so that the swing frame group forms an autonomous swing state; when the swing frame group begins to swing forward in the direction close to the pushing member under the action of gravity, the driving mechanism drives the pushing member away from the pushed member, and the height of the starting end of the forward swing of the swing frame group is higher than the height of the end of the forward swing of the swing frame group. When the swing frame group begins to swing in the opposite direction away from the pushing member under the action of gravity, the control system controls the pushing member to move against the pushed member according to the position information fed back by the first position sensor and the second position sensor at this time, and pushes the pushed member to move so that the height of the end of the reverse swing of the swing frame group is equal to the height of the starting end of the forward swing of the swing frame group to form a natural swing state.

[0011] As a preferred embodiment, the driving mechanism is a first rotating motor, and a sleeve portion is provided at one end of the pushing member close to the first rotating motor, and the sleeve portion is fixed to the rotating shaft of the first rotating motor. The end of the pushing member away from the first rotating motor is rotatably connected to the first roller, and the pushed member is provided with an abutment surface, and the first roller can abut against the abutment surface. The first rotating motor drives the pushing member to rotate, which can drive the pushed member to move and then drive the swing frame group to swing.

[0012] As a preferred embodiment, the first position sensor and the second position sensor are both magnetic encoders. Accordingly, magnets are provided at the rotating shaft of the first rotating motor and the rotating connection between the parallelogram mechanism and the support frame group. The first position sensor is provided corresponding to the rotating connection between the parallelogram mechanism and the support frame group, and the second position sensor is provided corresponding to the rotating shaft of the first rotating motor.

[0013] As a preferred solution, the driving mechanism includes a transverse moving plate and an electric push rod driving the transverse moving plate to move transversely, the pushed member includes a support and a second roller arranged on the support, the transverse moving plate is provided with a second rotating motor and an angle sensor for detecting the rotation angle of the second rotating motor, the pushing member is arranged on the rotating shaft of the second rotating motor, the pushing member is in an "8" shape, and the outer periphery of the pushing member can fit the second roller, the second rotating motor can drive the pushing member to rotate, and the electric push rod drives the transverse moving plate to move and then drives the pushing member to approach or move away from the second roller.

[0014] As a preferred embodiment, the driving mechanism is arranged on a mounting base, and the mounting base includes a transverse plate and a vertical plate arranged on the transverse plate, the electric push rod is arranged on the side of the vertical plate close to the second roller, the transverse movable plate is provided with a guide rod, and the top of the transverse plate and the vertical plate are both provided with guide sleeves for the guide rod to pass through, the second rotating motor is arranged on the side of the transverse movable plate close to the vertical plate, and the transverse movable plate is provided with an avoidance opening for the second roller to avoid.

[0015] As a preferred solution, the swing frame assembly also has a micro-motion state and a small swing state; the electric push rod drives the middle part of the outer periphery of the pushing member to rest on the second roller, and the second rotating motor drives the pushing member to rotate forward and reverse slightly, so that the swing frame assembly forms a micro-motion state; the electric push rod drives the middle part of the outer periphery of the pushing member to rest on the second roller, and the second rotating motor drives the pushing member to rotate circumferentially, so that the swing frame assembly forms a small swing state.

[0016] As a preferred solution, the speed adjustment method of the driving mechanism is as follows:

[0017] In the first step, after the control system detects that the swing speed of the swing frame group slows down through the first position sensor, it calculates the difference between the swing speed of the swing frame group at this time and the set swing speed of the swing frame group;

[0018] The second step is to increase the speed of the driving mechanism to accelerate the swing speed of the swing frame group through the pusher, and calculate again the difference between the swing speed of the swing frame group at this time and the set swing speed;

[0019] The speed control closed-loop adjustment of the first and second steps above is performed multiple times, and the swing speed of the swing frame group is made equal to the set swing speed by successive approximation, so that the height of the end of the reverse swing of the swing frame group is equal to the height of the beginning of the forward swing of the swing frame group.

[0020] As a preferred solution, the speed difference calculation position is the position of the lowest swing point of the swing frame group, and the position of the lowest swing point of the swing frame group is the equilibrium position of the swing frame group. When the swing frame group is in a natural swinging state, when the swing frame group starts to swing in the opposite direction away from the pushing member under the action of gravity, the pushing member pushes the pushed member. When the swing frame group reaches the equilibrium position, the pushing member makes the swing speed of the swing frame group reach the set speed, and at the same time drives the pushing member to move to a moving range away from the pushed member, and the swing frame group continues to swing in the opposite direction under the action of inertia.

[0021] As a preferred solution, the parallelogram mechanism includes a first linkage assembly and a second linkage assembly which are arranged at both ends of the left and right directions of the swing frame group. The first linkage assembly and the second linkage assembly both include a connecting rod, two first bearing seats, two swinging members, and two second bearing seat groups. The two first bearing seats are respectively arranged at the two ends of the front and rear directions of the swing frame group. The connecting rod is arranged to connect the two first bearing seats. The two second bearing seat groups are respectively arranged at the two ends of the front and rear directions of the support frame group. The second bearing seat group includes two second bearing seats arranged at intervals. One end of the swinging member is rotatably connected between the two second bearing seats, and the other end of the swinging member is connected to the connecting rod.

[0022] As a preferred solution, the first linkage component is arranged at the left end of the swing frame group, and the second linkage component is arranged at the right end of the swing frame group. The left end of the swing frame group has a first extension portion extending obliquely downward and leftward, and the first bearing seat of the first linkage component is arranged on the first extension portion. The right end of the swing frame group has a second extension portion extending vertically downward, and the first bearing seat of the second linkage component is arranged on the second extension portion.

[0023] As a preferred solution, the speed debugging method of the rotating motor is as follows:

[0024] In the first step, after the control system detects that the swing speed of the swing frame group slows down through the first position sensor, it calculates the difference between the swing speed of the swing frame group at this time and the set swing speed of the swing frame group;

[0025] The second step is to increase the rotation speed of the rotating motor to accelerate the swing speed of the swing frame assembly through the pusher, and calculate again the difference between the swing speed of the swing frame assembly at this time and the set swing speed;

[0026] The speed control closed-loop adjustment of the first and second steps above is performed multiple times, and the swing speed of the swing frame group is made equal to the set swing speed by successive approximation, so that the height of the end of the reverse swing of the swing frame group is equal to the height of the beginning of the forward swing of the swing frame group.

[0027] As a preferred solution, the speed difference calculation position is the position of the lowest swing point of the swing frame group, and the position of the lowest swing point of the swing frame group is the equilibrium position of the swing frame group. When the swing frame group is in a natural swinging state, when the swing frame group starts to swing in the opposite direction away from the pushing member under the action of gravity, the pushing member pushes the pushed member. When the swing frame group reaches the equilibrium position, the pushing member makes the swing speed of the swing frame group reach the set speed, and at the same time drives the pushing member to rotate to leave the moving range of the pushed member, and the swing frame group continues to swing in the opposite direction under the action of inertia.

[0028] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0029] Mainly, a driving mechanism is provided on the support frame group, the driving mechanism includes a pushing member, and a pushed member is provided on the swing frame group. The pushing member can drive the pushed member to move and then drive the swing frame group to swing, and cooperate with the limit member provided on the support frame group. The control system can control the rotation of the pushing member according to the position information fed back by the first position sensor and the second position sensor, so that the swing frame group can be in a locked state, a natural swing state, and an autonomous swing state. In the locked state, the user will not swing when lying on the smart bed. In the autonomous swing state, the user can swing at will when lying on the smart bed. In the natural swing state, the user can swing naturally under the action of gravity when lying on the smart bed. At the same time, the pushing member can be driven by seamless contact with the pushed member to ensure that the smart bed can maintain a fixed natural swing amplitude. The structural design is ingenious, which improves the comfort of the smart bed and thus improves the user experience.

[0030] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment 1 of the present invention;

[0032] Figure 2 It is a three-dimensional schematic diagram of another viewing angle of the preferred embodiment 1 of the present invention;

[0033] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0034] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0035] Figure 5 It is an exploded schematic diagram of a preferred embodiment 1 of the present invention;

[0036] Figure 6 It is a three-dimensional schematic diagram of the driving mechanism of the preferred embodiment 1 of the present invention;

[0037] Figure 7 This is a schematic diagram of the application of the preferred embodiment 1 of the present invention;

[0038] Figure 8 It is a schematic diagram of the installation of the driving mechanism of the second preferred embodiment of the present invention;

[0039] Fig. 9 1 is a three-dimensional schematic diagram of the driving mechanism of the second preferred embodiment of the present invention (the electric push rod is at the left extreme position);

[0040] Fig.10 It is a three-dimensional schematic diagram of the driving mechanism of the preferred embodiment 2 of the present invention (the electric push rod is in the right limit position).

[0041] Description of the accompanying drawings:

[0042] 10. Support frame set 11. Square frame

[0043] 12. Support frame 121. Cavity

[0044] 122, avoidance groove 13, support reinforcement rod

[0045] 14. Mounting frame 101, first mounting beam

[0046] 102, installation position 20, swing frame assembly

[0047] 201. Second mounting beam 202. First extension portion

[0048] 203, second extension portion 30, driving mechanism

[0049] 31. Pushing member 311. Socket connection portion

[0050] 312, first roller 32, first rotating motor

[0051] 33. Guide sleeve 34. Lateral moving plate

[0052] 341. Guide rod 342. Avoidance

[0053] 35. Electric push rod 36. Second rotating motor

[0054] 37. Angle sensor 38. Mounting seat

[0055] 381, horizontal board 382, ​​vertical board

[0056] 40. Parallelogram mechanism 41. First linkage assembly

[0057] 42. Second linkage assembly 401. Connecting rod

[0058] 402, first bearing seat 403, swing member

[0059] 404, second bearing seat assembly 405, second bearing seat

[0060] 50. Pushing member 51. Baffle

[0061] 52. Reinforcement plate 53. Support

[0062] 54. Second roller 501. Abutment surface

[0063] 60. Limiting member 70. First position sensor

[0064] 80. Second position sensor 90. Support rod

[0065] 91. Mattress support frame. DETAILED DESCRIPTION

[0066] First of all, it should be noted that in the description of the present invention, the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0067] Please refer to Figures 1 to 7 As shown, it shows the specific structure of the preferred embodiment 1 of the present invention, including a control system, a support frame group 10, a swing frame group 20 and a driving mechanism 30 for driving the swing frame group 20 to swing relative to the support frame group 10.

[0068] The support frame group 10 and the swing frame group 20 are connected via a parallelogram mechanism 40, so that the swing frame group 20 can swing relative to the support frame group 10;

[0069] The driving mechanism 30 is arranged on the support frame assembly 10, and the driving mechanism 30 includes a pushing member 31 and a first rotating motor 32 capable of driving the pushing member 31 to rotate. A pushed member 50 is arranged on the swing frame assembly 20, and the first rotating motor 32 drives the pushing member 31 to rotate to drive the pushed member 50 to move and then drive the swing frame assembly 20 to swing. A limiting member 60 for limiting the swing of the swing frame assembly 20 is arranged on the support frame assembly 10;

[0070] The smart bed is also provided with a first position sensor 70 for detecting the swing position of the swing frame assembly 20 and a second position sensor 80 for detecting the rotation position of the first rotary motor 32. The first position sensor 70, the second position sensor 80 and the first rotary motor 32 are all electrically connected to a control system (not shown in the figure). The control system can control the rotation of the pusher 31 according to the position information fed back by the first position sensor 70 and the second position sensor 80.

[0071] The swing frame assembly 20 has a locked state, a natural swing state, and an autonomous swing state; the first rotating motor 32 drives the swing frame assembly 20 to swing against the limiter 60 through the cooperation of the pushing member 31 and the pushed member 50, so that the swing of the swing frame assembly 20 is limited by the pushing member 31 and the limiter 60 to form a locked state; the first rotating motor 32 drives the pushing member 31 to leave the moving range of the pushed member 50, so that the swing frame assembly 20 forms an autonomous swing state; when the swing frame assembly 20 starts to swing forward toward the direction close to the pushing member 31 under the action of gravity, the first The rotating motor 32 drives the pushing member 31 away from the pushed member 50, and the height of the starting end of the positive swing of the swing frame group 20 is higher than the height of the end of the positive swing of the swing frame group 20. When the swing frame group 20 starts to swing in the opposite direction away from the pushing member 31 under the action of gravity, the control system controls the pushing member 31 to rotate until it contacts the pushed member 50 based on the position information fed back by the first position sensor 70 and the second position sensor at this time, and pushes the pushed member 50 to move so that the height of the end of the reverse swing of the swing frame group 20 is equal to the height of the starting end of the positive swing of the swing frame group 20, forming a natural swinging state.

[0072] See also Figures 2 to 4 As shown, the end of the pushing member 31 close to the first rotating motor 32 is provided with a sleeve portion 311, and the sleeve portion 311 is fixed to the rotating shaft of the first rotating motor 32. The end of the pushing member 31 away from the first rotating motor 32 is rotatably connected to the first roller 312, and the pushed member 50 is provided with an abutting surface 501, and the first roller 312 can abut against the abutting surface 501;

[0073] Specifically, the support frame group 10 is provided with a first mounting beam 101 for installing the first rotating motor 32, and the first rotating motor 32 is fixed on the first mounting beam 101. The swing frame group 20 is provided with a second mounting beam 201 for installing the push member 50, and the second mounting beam 201 is located above the first mounting beam 101. The push member 50 is arranged on the second mounting beam 201, and the push member 50 includes a baffle 51 and a reinforcing plate 52 connected to the baffle 51 for strengthening the strength of the baffle 51.

[0074] See also Figure 3 and Figure 6As shown, the first position sensor 70 and the second position sensor 80 are both magnetic encoders. Accordingly, the rotating shaft of the first rotating motor 32 and the rotating connection between the parallelogram mechanism 40 and the support frame group 10 are both provided with magnets (not shown in the figure). The first position sensor 70 is provided corresponding to the rotating connection between the parallelogram mechanism 40 and the support frame group 10, and the second position sensor 80 is provided corresponding to the rotating shaft of the first rotating motor 32. In some other embodiments, the first position sensor 70 may also be a displacement sensor to measure the moving distance of the pushed member, and then determine the position of the swing frame group 20. Preferably, the first rotating motor 32 is a stepping motor.

[0075] See also Figure 1 and Figure 5 As shown, the parallelogram mechanism 40 includes a first linkage assembly 41 and a second linkage assembly 42 which are arranged at both ends of the swing frame group 20 in the left and right directions. The first linkage assembly 41 and the second linkage assembly 42 both include a connecting rod 401, two first bearing seats 402, two swing members 403, and two second bearing seat groups 404. The two first bearing seats 402 are respectively arranged at both ends of the swing frame group 20 in the front and rear directions. The connecting rod 401 is penetrated and connected with the two first bearing seats 402. The two second bearing seat groups 404 are respectively arranged at both ends of the support frame group 10 in the front and rear directions. The second bearing seat group 404 includes two second bearing seats 405 arranged at intervals. One end of the swing member 403 is rotatably connected between the two second bearing seats 405, and the other end of the swing member 403 is connected to the connecting rod 401.

[0076] Specifically, the first linkage assembly 41 is arranged at the left end of the swing frame assembly 20, and the second linkage assembly 42 is arranged at the right end of the swing frame assembly 20. The left end of the swing frame assembly 20 is obliquely downward and leftwardly extended with a first extension portion 202, and the first bearing seat 402 of the first linkage assembly 41 is arranged on the first extension portion 202. The right end of the swing frame assembly 20 is vertically extended downward with a second extension portion 203, and the first bearing seat 402 of the second linkage assembly 42 is arranged on the second extension portion 203;

[0077] The support frame group 10 includes a square frame 11 and four support frames 12 arranged at the bottom of the square frame 11, a cavity 121 for accommodating a swinging member 403 is arranged in the support frame 12, and a avoidance groove 122 for the connection rod 401 to evade is opened on the side of the support frame 12, and the avoidance groove 122 is connected to the cavity 121, and the swing frame group 20 is located in the area surrounded by the square frame 11, and a support reinforcement rod 13 is connected between adjacent support frames 12. The square frame 11, the support frame 12 and the support reinforcement rod 13 are welded together, and the welding connection method is adopted to improve the rigidity of the support frame group as a whole, thereby making the support frame group as a whole not easy to deform, which is conducive to the generation and transportation, and convenient for the user to assemble, and the limit member 60 is arranged on the support frame 12;

[0078] Preferably, a mounting position 102 is provided below the right end of the support frame group 10, and the mounting position 102 is provided with a mounting frame 14 detachably connected to the support frame group 10, and the two right-end support frames 12 are located on the left side of the mounting frame 14, and the square frame, support frame and support reinforcement rod are all made of iron, and the support frame is provided with a plurality of hollow grooves, and the setting of the hollow grooves can reduce the weight of the support frame.

[0079] See also Figure 7 As shown, a support rod 90 is provided on the top of the swing frame group 20, and a mattress support frame 91 for supporting the mattress is connected to the support rod 90. The provision of the second extension portion increases the distance between the two connecting rods, thereby making the two connecting rods closer to the two ends of the mattress support frame in the length direction, so that the mattress support frame can swing more smoothly. The structure of the mattress support frame 91 is not limited to this embodiment.

[0080] In order to ensure that the height of the end of the reverse swing of the swing frame assembly 20 is equal to the height of the beginning of the forward swing of the swing frame assembly 20, the speed of the first rotating motor 32 is usually adjusted. The speed adjustment steps of the rotating motor are as follows:

[0081] In the first step, after the control system detects that the swing speed of the swing frame assembly 20 slows down through the first position sensor 70, it calculates the difference between the swing speed of the swing frame assembly 20 at this time and the set swing speed of the swing frame assembly 20;

[0082] The second step is to increase the rotation speed of the first rotating motor 32 to accelerate the swing speed of the swing frame assembly 20 through the pusher 31, and calculate the difference between the swing speed of the swing frame assembly 20 and the set swing speed again;

[0083] The speed control closed-loop adjustment of the first and second steps is performed multiple times, and the swing speed of the swing frame assembly 20 is made equal to the set swing speed by successive approximation, so that the height of the end of the reverse swing of the swing frame assembly 20 is equal to the height of the beginning of the forward swing of the swing frame assembly 20;

[0084] Preferably, the speed difference calculation position is the position of the lowest swing point of the swing frame group 20 (that is, when the swing member 403 swings to vertically downward), and the position of the lowest swing point of the swing frame group 20 is the equilibrium position of the swing frame group 20. When the swing frame group 20 is in a natural swinging state, when the swing frame group 20 begins to swing in the opposite direction away from the pushing member 31 under the action of gravity, the pushing member 31 pushes the pushed member 50. When the swing frame group 20 reaches the equilibrium position, the pushing member 31 makes the swing speed of the swing frame group 20 reach the set speed, and at the same time drives the pushing member 31 to rotate to leave the moving range of the pushed member 50. The swing frame group 20 continues to swing in the opposite direction under the action of inertia until it reaches the end of the reverse swing of the swing frame group 20, thereby enabling the swing frame group 20 to achieve a stable natural swing amplitude.

[0085] The natural swing amplitude of the swing frame assembly 20 can be changed by changing the speed of the rotating motor 20 , that is, the height of the starting end of the positive swing of the swing frame assembly 20 can be changed.

[0086] Please refer to Figures 8 to 10 As shown, it shows the specific structure of the preferred embodiment 2 of the present invention, and its structure is roughly the same as that of the embodiment 1, except that:

[0087] In this embodiment, the driving mechanism 30 includes a transverse moving plate 34, an electric push rod 35 driving the transverse moving plate 34 to move transversely, and a second position sensor 80 is integrated on the electric push rod 35. The second position sensor 80 can be a Hall unit, which is arranged on the motor of the electric push rod 35. Each time the motor rotates one circle, a signal is sent to the control system. After counting, the control system can obtain how many circles the motor of the electric push rod 35 runs, thereby obtaining the moving distance of the pushing member 31. The pushed member 50 includes a support 53 and a second position sensor arranged on the support 53. The roller 54, the transverse moving plate 34 is provided with a second rotary motor 36 and an angle sensor 37 for detecting the rotation angle of the second rotary motor 36, the angle sensor 37 can be a magnetic encoder, the pushing member 31 is provided on the rotating shaft of the second rotary motor 36, the pushing member 31 is in an "8" shape, and the outer periphery of the pushing member 31 can fit the second roller 54, the second rotary motor 36 can drive the pushing member 31 to rotate, the electric push rod 35 drives the transverse moving plate 34 to move and then drives the pushing member 31 to approach or move away from the second roller 54;

[0088] Furthermore, the driving mechanism 30 is arranged on a mounting base 38, and the mounting base 38 includes a transverse plate 381 and a vertical plate 382 arranged on the transverse plate 381, the electric push rod 35 is arranged on the side of the vertical plate 381 close to the second roller 54, the transverse movable plate 34 is provided with a guide rod 341, and the top of the transverse plate 381 and the vertical plate 382 are both provided with a guide sleeve 33 for the guide rod 341 to pass through, the second rotating motor 36 is arranged on the side of the transverse movable plate 34 close to the vertical plate 382, ​​and the transverse movable plate 34 is provided with an avoidance opening 342 for the second roller 54 to avoid, and the guide rod 341 and the guide sleeve 33 are both provided with two spaced apart arrangements.

[0089] The swing frame assembly 20 also has a micro-motion state and a small swing state; the electric push rod 35 drives the middle part of the outer periphery of the pushing member 31 to abut against the second roller 54, and the second rotating motor 36 drives the pushing member to rotate forward and reverse slightly, so that the swing frame assembly 20 forms a micro-motion state; the electric push rod 35 drives the middle part of the outer periphery of the pushing member 31 to abut against the second roller 54, and the second rotating motor 36 drives the pushing member 31 to rotate circumferentially, so that the swing frame assembly 20 forms a small swing state.

[0090] In this embodiment, the speed adjustment steps of the electric push rod 35 are as follows:

[0091] In the first step, after the control system detects that the swing speed of the swing frame assembly 20 slows down through the first position sensor 70, it calculates the difference between the swing speed of the swing frame assembly 20 at this time and the set swing speed of the swing frame assembly 20;

[0092] The second step is to increase the ejection speed of the electric push rod 35 to accelerate the swing speed of the swing frame assembly 20 through the push member 31, and calculate the difference between the swing speed of the swing frame assembly 20 at this time and the set swing speed again;

[0093] The speed control closed-loop adjustment of the first and second steps above is performed multiple times, and the swing speed of the swing frame assembly 20 is made equal to the set swing speed by successive approximation, so that the height of the end of the reverse swing of the swing frame assembly 20 is equal to the height of the beginning of the forward swing of the swing frame assembly 20.

[0094] The design emphasis of the present invention is:

[0095] Mainly, a driving mechanism is provided on the support frame group, the driving mechanism includes a pushing member, and a pushed member is provided on the swing frame group. The pushing member can drive the pushed member to move and then drive the swing frame group to swing, and cooperate with the limit member provided on the support frame group. The control system can control the rotation of the pushing member according to the position information fed back by the first position sensor and the second position sensor, so that the swing frame group can be in a locked state, a natural swing state, and an autonomous swing state. In the locked state, the user will not swing when lying on the smart bed. In the autonomous swing state, the user can swing at will when lying on the smart bed. In the natural swing state, the user can swing naturally under the action of gravity when lying on the smart bed. At the same time, the pushing member can be driven by seamless contact with the pushed member to ensure that the smart bed can maintain a fixed natural swing amplitude. The structural design is ingenious, which improves the comfort of the smart bed and thus improves the user experience.

[0096] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent bed simulating a natural rocking curve, comprising a control system, a support frame group, a rocking frame group and a driving mechanism for driving the rocking frame group to rock relative to the support frame group, wherein the support frame group and the rocking frame group are connected by a parallelogram mechanism so that the rocking frame group can rock relative to the support frame group; characterized in that: The driving mechanism is arranged on the supporting frame group, and the driving mechanism is provided with a pushing member. Correspondingly, the swinging frame group is provided with a pushed member. The driving mechanism can drive the pushing member to move and then drive the pushed member to move, so that the swinging frame group can swing relative to the supporting frame group. The supporting frame group is provided with a limiting member for limiting the swinging of the swinging frame group. The smart bed is also provided with a first position sensor for detecting the swing position of the swing frame group and a second position sensor for detecting the position of the pusher. The first position sensor, the second position sensor and the driving mechanism are all electrically connected to the control system. The control system can control the movement of the pusher according to the position information fed back by the first position sensor and the second position sensor. Wherein, the swing frame group has a locked state, a natural swing state and an autonomous swing state; the driving mechanism drives the swing frame group to swing against the limit member through the cooperation of the pushing member and the pushed member, so that the swing of the swing frame group is limited by the pushing member and the limit member to form a locked state; the driving mechanism drives the pushing member to leave the activity range of the pushed member, so that the swing frame group forms an autonomous swing state; when the swing frame group begins to swing forward in the direction close to the pushing member under the action of gravity, the driving mechanism drives the pushing member away from the pushed member, and the height of the starting end of the forward swing of the swing frame group is higher than the height of the end of the forward swing of the swing frame group. When the swing frame group begins to swing in the opposite direction away from the pushing member under the action of gravity, the control system controls the pushing member to move against the pushed member according to the position information fed back by the first position sensor and the second position sensor at this time, and pushes the pushed member to move so that the height of the end of the reverse swing of the swing frame group is equal to the height of the starting end of the forward swing of the swing frame group to form a natural swing state.

2. The intelligent bed simulating a natural rocking curve according to claim 1, characterized in that: The driving mechanism is a first rotating motor, and a sleeve portion is provided at one end of the pushing member close to the first rotating motor, and the sleeve portion is fixed to the rotating shaft of the first rotating motor. The end of the pushing member away from the first rotating motor is rotatably connected to the first roller, and the pushed member is provided with an abutment surface, and the first roller can abut against the abutment surface. The first rotating motor drives the pushing member to rotate, which can drive the pushed member to move and then drive the swing frame group to swing.

3. The intelligent bed simulating a natural rocking curve according to claim 2, characterized in that: The first position sensor and the second position sensor are both magnetic encoders. Accordingly, magnets are provided at the rotating shaft of the first rotating motor and the rotating connection between the parallelogram mechanism and the support frame group. The first position sensor is provided corresponding to the rotating connection between the parallelogram mechanism and the support frame group, and the second position sensor is provided corresponding to the rotating shaft of the first rotating motor.

4. The intelligent bed simulating a natural rocking curve according to claim 1, characterized in that: The driving mechanism includes a transverse moving plate and an electric push rod for driving the transverse moving plate to move transversely, the pushed member includes a support and a second roller arranged on the support, the transverse moving plate is provided with a second rotating motor and an angle sensor for detecting the rotation angle of the second rotating motor, the pushing member is arranged on the rotating shaft of the second rotating motor, the pushing member is in the shape of an "8", and the outer periphery of the pushing member can fit the second roller, the second rotating motor can drive the pushing member to rotate, and the electric push rod drives the transverse moving plate to move and then drives the pushing member to approach or move away from the second roller.

5. The intelligent bed simulating a natural rocking curve according to claim 4, characterized in that: The driving mechanism is arranged on a mounting seat, and the mounting seat includes a transverse plate and a vertical plate arranged on the transverse plate. The electric push rod is arranged on the side of the vertical plate close to the second roller. The transverse movable plate is provided with a guide rod. The top of the transverse plate and the vertical plate are both provided with guide sleeves for the guide rod to pass through. The second rotating motor is arranged on the side of the transverse movable plate close to the vertical plate. The transverse movable plate is provided with an avoidance opening for the second roller to avoid.

6. The intelligent bed simulating a natural rocking curve according to claim 4, characterized in that: The swing frame assembly also has a micro-motion state and a small swing state; the electric push rod drives the middle part of the outer periphery of the pushing member to abut against the second roller, and the second rotating motor drives the pushing member to rotate forward and reverse slightly, so that the swing frame assembly forms a micro-motion state; the electric push rod drives the middle part of the outer periphery of the pushing member to abut against the second roller, and the second rotating motor drives the pushing member to rotate circumferentially, so that the swing frame assembly forms a small swing state.

7. An intelligent bed simulating a natural rocking curve according to any one of claims 1 to 6, characterized in that: The speed debugging method of the driving mechanism is as follows: In the first step, after the control system detects that the swing speed of the swing frame group slows down through the first position sensor, it calculates the difference between the swing speed of the swing frame group at this time and the set swing speed of the swing frame group; The second step is to increase the speed of the driving mechanism to accelerate the swing speed of the swing frame group through the pusher, and calculate again the difference between the swing speed of the swing frame group at this time and the set swing speed; The speed control closed-loop adjustment of the first and second steps above is performed multiple times, and the swing speed of the swing frame group is made equal to the set swing speed by successive approximation, so that the height of the end of the reverse swing of the swing frame group is equal to the height of the beginning of the forward swing of the swing frame group.

8. The intelligent bed simulating a natural rocking curve according to claim 7, characterized in that: The speed difference calculation position is the position of the lowest swing point of the swing frame group, and the position of the lowest swing point of the swing frame group is the equilibrium position of the swing frame group. When the swing frame group is in a natural swinging state, when the swing frame group starts to swing in the opposite direction away from the pushing member under the action of gravity, the pushing member pushes the pushed member. When the swing frame group reaches the equilibrium position, the pushing member makes the swing speed of the swing frame group reach the set speed, and at the same time drives the pushing member to move to the moving range away from the pushed member, and the swing frame group continues to swing in the opposite direction under the action of inertia.

9. The intelligent bed simulating a natural rocking curve according to claim 1, characterized in that: The parallelogram mechanism includes a first linkage assembly and a second linkage assembly which are arranged at both ends of the swing frame group in the left and right directions. The first linkage assembly and the second linkage assembly both include a connecting rod, two first bearing seats, two swinging members, and two second bearing seat groups. The two first bearing seats are respectively arranged at the two ends of the front and rear directions of the swing frame group. The connecting rod is penetrated and connected with the two first bearing seats. The two second bearing seat groups are respectively arranged at the two ends of the front and rear directions of the support frame group. The second bearing seat group includes two second bearing seats arranged at intervals. One end of the swinging member is rotatably connected between the two second bearing seats, and the other end of the swinging member is connected to the connecting rod.

10. The intelligent bed simulating a natural rocking curve according to claim 9, characterized in that: The first linkage component is arranged at the left end of the swing frame group, and the second linkage component is arranged at the right end of the swing frame group. A first extension portion is extended obliquely downward and leftward from the left end of the swing frame group, and a first bearing seat of the first linkage component is arranged on the first extension portion. A second extension portion is extended vertically downward from the right end of the swing frame group, and the first bearing seat of the second linkage component is arranged on the second extension portion.

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