Electric rocking device and massage chair frame

Abstract

The utility model relates to an electric rocking device which comprises a bottom frame, a first frame body, a second frame body and a power mechanism, wherein the left side and the right side of the first frame body are positioned on the bottom frame through coaxial transverse shaft sections; the front side and the rear side of the second frame body are positioned on the first frame body through coaxial longitudinal shaft sections; the power mechanism is arranged on the bottom frame and is used for driving the second frame body to rock; the utility model further provides a massage chair frame matched with the electric rocking device. The second frame body is positioned by adopting two vertical shafts, the power mechanism drives the second frame body to generate two vertical axial superposed swinging, and on the basis, the multi-dimensional electric swinging mechanism bears specific appliances such as a bed and a chair, realizes a multi-dimensional electric swinging function, is particularly matched with a massage chair, has smooth conversion of sitting and lying and massage, also has superposed swinging actions, and can realize multi-dimensional electric swinging. And a good relaxation and rest effect is achieved.

Description

Technical field:

[0001] The utility model belongs to the technical field of electric shaking, and particularly relates to an electric shaking device and a massage chair frame including the electric shaking device, and in particular to a solution capable of realizing multi-dimensional shaking. Background technology:

[0002] Rocking chairs are a common everyday item, offering a back-and-forth rocking motion for relaxation and tranquility. Massage chairs, on the other hand, are more modern, offering a variety of massage movements, utilizing mechanical force to intervene on the body for relaxation. Massage chairs only offer forward and backward movement, with continuous adjustment between sitting and reclining positions. They lack a rocking function, and the adjustments are relatively monotonous. Massage chairs are constructed from a frame with various massage devices installed, along with soft padding and a cover, forming a complete, functional unit.

[0003] The massage chair frame that carries these functions generally includes: a backrest frame, a seat cushion frame, a base frame and an electric push rod, as well as a leg frame hinged at the front end of the seat cushion frame; the massage equipment can generally contact the backrest and seat cushion, as well as the legs and feet, to achieve massage in the three major areas; because the leg frame is independent, the massage equipment configured is also independent; and the backrest and seat cushion can be designed as a walking massage or a fixed-point massage according to different needs. Fixed-point massage is to directly install hanging massage equipment on the backrest frame and seat cushion frame, while walking massage requires a walking track to allow the massage equipment to walk on the track to complete a large-scale massage. Regardless of the configuration, the current massage chair as a whole cannot swing, resulting in a single function of the equipment. Summary of the invention:

[0004] The purpose of the utility model is to design an electric shaking device which can generate multi-dimensional shaking under power drive, and a massage chair frame equipped with the electric shaking device.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] An electric shaking device, characterized in that it includes:

[0007] chassis,

[0008] The first frame body has left and right sides positioned on the bracket of the base frame through coaxial transverse axis sections;

[0009] The second frame body is positioned on the first frame body through coaxial longitudinal axis sections on the front and rear sides, and is used to bear the load and shake; the power mechanism is installed on the base frame and is used to drive the second frame body to shake.

[0010] Furthermore, the first frame is a rectangular structure or a diamond structure, which can provide hinge positions for the horizontal axis segment and the vertical axis segment at the same time; the second frame includes two front and rear horizontal bars and at least two longitudinal bars for connecting the two horizontal bars. The two horizontal bars are located outside the first frame, and the two longitudinal bars are connected into a whole.

[0011] Furthermore, the second frame has the following two structures: 1. A planar frame, in which the two longitudinal rods cross the first frame and are fixed to the upper surface of the cross bar, and the gap spanned is greater than the swing stroke of the second frame relative to the first frame; 2. A three-dimensional frame, in which the two ends of the two longitudinal rods are connected to the two cross bars respectively through vertical rods, or the two longitudinal rods are arranged at an angle, one end is fixed to one cross bar, and the other end is connected to the other cross bar respectively through vertical rods.

[0012] Furthermore, there are two driving structures between the power mechanism and the second frame: one is axial eccentric drive, in which the two longitudinal rods in the second frame are symmetrically distributed on the two cross rods, and a driving rod perpendicular to the plane formed by the two longitudinal rods is arranged between the two longitudinal rods, and the other end of the driving rod is eccentrically connected to the output end face of the power mechanism through a joint bearing; the second is radial eccentric drive, in which a cross rod of the second frame can be rotatably provided with an A-axis segment of a right-angle axis at a position away from the longitudinal axis segment, and the A-axis segment is parallel to the longitudinal axis segment, and the B-axis segment of the right-angle axis is connected to the eccentric shaft output by the power mechanism through a driving chain rod; or a cross rod of the second frame is connected to the eccentric shaft output by the power mechanism through a joint bearing at a position away from the longitudinal axis segment.

[0013] Furthermore, the power mechanism includes a motor and a gearbox. The motor outputs rotational power after being changed in speed by the gearbox. There are two types of output structures. One is that a ball head seat or eccentric shaft is directly fixed to the eccentric position of the final gear surface of the gearbox; the other is that a turntable is locked on the output shaft of the gearbox, and a ball head seat or eccentric shaft is fixed at the eccentric position of the turntable.

[0014] The cam is hinged on the top of the support frame and is fixed with the support rod to the front end of the support frame so as to adjust the support position of the support frame to the upper and lower parts of the support frame.

[0015] The two longitudinal bars on the second frame are distributed at the positions where the cross bar is divided into three equal parts. Two reinforcing bars are connected to the lower surfaces of the two ends of the two cross bars, and the two reinforcing bars are located below the first frame.

[0016] A massage chair frame, comprising a seat frame, an electric push rod and a leg frame hinged at the front end of the seat cushion of the seat frame, and the above-mentioned electric shaking device; the seat frame is driven by the electric push rod to complete the continuous change between the sitting position and the lying position; it is characterized in that: the second frame is a three-dimensional frame, the two horizontal bars and the two longitudinal bars are connected to form a rectangular frame through four vertical bars or to form a triangular frame through two vertical bars, the rear ends of the two longitudinal bars or the rear two vertical bars are provided with an axle seat for positioning the seat frame, the front horizontal bar is provided with a A push rod hinge seat and a linkage hinge seat are provided; the seat frame is positioned on the shaft seat on the rear side of the second frame through hinge shafts on both sides of the seat turning position, one end of the electric push rod is hinged to the front end of the seat cushion part of the seat frame, and the other end is hinged to the push rod hinge seat of the previous cross bar. The front end of the seat cushion part is also hinged to the middle part of the crank in the linkage assembly. The linkage assembly includes a crank and a connecting rod. The roller arranged at one end of the crank can abut against the back of the leg frame, and the other end is hinged to the connecting rod. The other end of the connecting rod is hinged to the linkage hinge seat of the previous cross bar.

[0017] The front ends of the two longitudinal bars of the second frame are further connected to an upper transverse bar.

[0018] The seat frame includes a seat cushion part and a backrest part, and the two have the following structures: 1. Rigidity is integrated; 2. Split, and is hinged to form a moving body; 3. Split, and is hinged and acted on by an electric push rod, so that the two can change the angle.

[0019] The utility model adopts two vertical axes to position the second frame, and the power mechanism drives the second frame to generate superimposed swings in two vertical axes. Based on this, it can carry specific appliances such as beds and chairs to achieve a multi-dimensional electric swing function. It is especially suitable for massage chairs. It has smooth transitions between sitting and lying and massage, and superimposed swinging movements, which has a good relaxation effect. Description of the drawings:

[0020] The present invention will be further described below with reference to specific figures:

[0021] Figure 1 A schematic diagram of the state of the electric shaking device

[0022] Figure 2 Schematic diagram of the second state of the electric shaking device

[0023] Figure 3 Schematic diagram of the electric shaking device

[0024] Figure 4 Schematic diagram of the second electro-oscillation device

[0025] Figure 5 Schematic diagram of the second decomposition of the electric shaking device

[0026] Figure 6 Schematic diagram of the electric shaking device with two longitudinal rods at an angle

[0027] Figure 7 Diagram of the front sitting position of the massage chair frame

[0028] Figure 8 A side view of the massage chair frame sitting position

[0029] Figure 9 Schematic diagram of the massage chair frame in a semi-reclining position

[0030] Figure 10 Schematic diagram of the massage chair frame in semi-reclining position

[0031] Figure 11 Schematic diagram of massage chair frame 2

[0032] Figure 12 Schematic diagram of the second decomposition of the massage chair frame

[0033] Figure 13 Schematic diagram of the massage chair frame with two longitudinal rods placed obliquely

[0034] in

[0035] 1—base frame; 11—bracket;

[0036] 2—first frame; 21—transverse axis segment; 22—longitudinal axis segment;

[0037] 3 - second frame; 31 - horizontal bar; 32 - longitudinal bar; 321 - reinforcing bar; 33 - vertical bar; 34 - driving bar;

[0038] 35—axle seat; 36—lower crossbar; 361—push rod hinge seat; 362—linking hinge seat; 37—upper crossbar;

[0039] 4—power mechanism; 41—motor; 42—gearbox; 421—final stage gear surface; 422—eccentric shaft;

[0040] 5—spherical bearing; 51—ball seat; 52—ball head; 53—drive chain rod;

[0041] 6—right-angle axis; 61—axis segment A; 62—axis segment B;

[0042] 7 - seat frame; 71 - seat cushion; 72 - backrest;

[0043] 8—legs and tripods;

[0044] 9—electric push rod;

[0045] 10—linkage assembly; 101—crank; 102—connecting rod; 103—roller; Specific implementation method:

[0046] Reference Figure 1 、 Figure 2 and Figure 3 The electro-dynamic shaking device includes a base frame 1, a first frame 2, a second frame 3, and a power mechanism 4. The left and right sides of the first frame 2 are positioned on the bracket 11 of the base frame via coaxial transverse axis segments 21, and can swing back and forth relative to the bracket 11. The front and rear sides of the second frame 3 are positioned on the first frame 2 via coaxial longitudinal axis segments 22, and can swing left and right relative to the first frame 2. When superimposed on the second frame 3, multi-dimensional shaking can be achieved, and the second frame 3 is used to carry the load and shake. The power mechanism 4 is installed on the base frame 1 to drive the second frame 3 to shake.

[0047] More specifically, the first frame 2 is a rectangular structure or a diamond structure, which can provide hinge positions for the horizontal axis segment and the vertical axis segment at the same time; the figure shows a rectangular frame, but it can also be a diamond structure, and the four angles of the diamond just provide support positions for the horizontal axis segment and the vertical axis segment.

[0048] The second frame 3 includes two front and rear cross bars 31 and at least two longitudinal bars 32 for connecting the two cross bars. The two cross bars 31 are located outside the first frame 2 and are connected to form a whole by the two longitudinal bars 32. More specifically, the second frame has the following two structures:

[0049] 1. Plane frame, such as Figures 1 to 3 The two longitudinal rods 32 span the first frame 2 and are fixed to the upper surface of the crossbar 31. The gap they span is larger than the swing stroke of the second frame 3 relative to the first frame 2, which means that they cannot hinder the relative swing of the two. To strengthen and provide a point of action for the power mechanism 4, the two longitudinal rods 32 fixed to the upper surface of the crossbar are distributed at the points that divide the crossbar into three equal parts. Further longitudinal rods 32 are fixed to the underside of each end of the crossbar 31 to strengthen the strength of the second frame 3 and meet load requirements, such as installing a chair or bed on the second frame 3.

[0050] 2. Stereoscopic frame, reference Figure 4 and Figure 5 The two ends of the two longitudinal rods 32 are connected to the two horizontal rods 31 through the vertical rods 33.

[0051] Or the two longitudinal rods 31 are tilted, refer to Figure 6 One end of the longitudinal rod 31 is fixed on a horizontal rod 31, and the other end is connected to another horizontal rod 31 through a vertical rod 33. The tilted end of the longitudinal rod 32 is used to design a supporting load, and the load-bearing structure is more reasonable than the former. Of course, the downward end of the longitudinal rod 32 connected to the horizontal rod is designed to be higher than the swing stroke of the first frame 2.

[0052] The power mechanism 4 includes a motor 41 and a gearbox 42. The motor 41 outputs rotational power after the gearbox 42 changes speed. According to the above two shapes and structures of the second frame 3, the driving structure of the power mechanism 4 also has the following two types:

[0053] 1. Axial eccentric drive, such as Figures 1 to 3 The two longitudinal rods 32 in the second frame 3 are symmetrically distributed on the two cross rods 31, and a driving rod 34 perpendicular to the plane formed by the two longitudinal rods is arranged between the two longitudinal rods 32. The other end of the driving rod 34 is eccentrically connected to the output end face of the power mechanism through a joint bearing 5; that is to say, the ball head seat 51 of the joint bearing is locked at the eccentric position of the output end face, such as directly locked at the eccentric position of the final gear surface 421 of the gearbox 42 as shown in the figure, or, a turntable is locked on the output shaft of the gearbox 42, and a ball head seat 51 is fixed at the eccentric position of the turntable; and the ball head 52 of the joint bearing is locked on the driving rod 34, and the driving rod 34 can also be regarded as the ball head 52 arm.

[0054] Second, radial eccentric drive, such as Figures 4 to 6 A crossbar 31 of the second frame, at a hinged position away from the longitudinal axis, can rotatably mount an A-axis segment 61 of the right-angled shaft 6. This A-axis segment 61 is parallel to the longitudinal axis segment 22. A drive chain 53 connects the B-axis segment 62 of the right-angled shaft to the eccentric shaft 422 of the power mechanism output. Alternatively, a crossbar 31 of the second frame, at a hinged position away from the longitudinal axis, can be connected to the eccentric shaft of the power mechanism output via a spherical bearing. The choice of which one is used depends on the space available.

[0055] The aforementioned drive mechanism 4 has two output configurations: one in which a ball seat or eccentric shaft is directly fixed to the eccentric position of the final gear surface of the transmission 42; the other in which a turntable is locked to the transmission output shaft, with a ball seat or eccentric shaft fixed to the eccentric position of the turntable, thereby providing a transition through a turntable. Furthermore, the aforementioned spherical bearings also encompass similar and equivalent mechanical standard components such as spherical oil-containing bearings.

[0056] The above-mentioned electric shaking device can be used to support office chairs, massage chairs, sofas and beds, etc., to realize the shaking function and improve the experience of traditional objects.

[0057] Using the above-mentioned electric rocking device as the basis of the massage chair frame, a massage chair frame with a rocking function can be designed. Corresponding to two different second frames, there are also two adaptation structures, which are as follows:

[0058] Example 1:

[0059] Reference Figures 7 to 10A massage chair frame includes a seat frame 7, a leg frame 8 and an electric push rod 9; the seat frame 7 has a seat cushion 71 and a backrest 72, and the leg frame 8 is hinged to the front end of the seat cushion 71 of the seat frame 7. The seat frame is driven by the electric push rod to complete the continuous change between sitting and lying positions, which is also the most basic function.

[0060] The adapted second frame 3 is a planar frame, and the two ends of the rear cross bar 31 are provided with axle seats 35 for positioning the seat frame, and a lower cross bar 36 is provided directly below the front cross bar 31. The lower cross bar 36 is provided with a push rod hinge seat 361 and a linkage hinge seat 362 to provide low-level support.

[0061] The seat frame 7 is positioned on the shaft seat 35 on the rear side of the second frame through hinge shafts on both sides of the seat turning position. One end of the electric push rod 9 is hinged to the front end of the seat cushion part 71 of the seat frame, and the other end is hinged to the push rod hinge seat 361 of the lower cross bar. The front end of the seat cushion part 71 is also hinged to the middle part of the crank 101 in the linkage assembly 10. The linkage assembly 10 includes a crank 101 and a connecting rod 102. The roller 103 set at one end of the crank 101 can abut against the back of the leg frame 8, and the other end is hinged to the connecting rod 102. The other end of the connecting rod 102 is hinged to the linkage hinge seat 362 of the lower cross bar.

[0062] During operation, the electric push rod 9 drives the front end of the seat cushion 71 to lift, and the backrest frame 7 as a whole swings about the hinge axis at the axle seat 35, changing from a sitting position to a lying position. At this time, the crank 101, constrained by the connecting rod 102, swings in a lever-like manner, and the leg and footrests 8 are synchronously lifted by the roller 103, so that the person is in a lying position; conversely, the person changes to a sitting position. When shaking is required, the power mechanism 4 is activated, and the rotating final gear surface 421 drives the ball head seat 51 to rotate eccentrically. The ball head 52 then drives the drive rod 34 to perform a circular motion, causing the seat frame 7 and leg and footrests 8 mounted on the second frame 3 to shake as a whole in multiple dimensions.

[0063] Furthermore, the two longitudinal bars 32 of the second frame 3 are distributed at the positions dividing the crossbar 31 into three equal parts. Two reinforcing bars 321 are connected to the lower surfaces of the two ends of the crossbars 31 to increase the rigidity of the second frame 3. The two reinforcing bars 321 are located below the first frame 2 so as not to hinder the relative swinging of the first and second frames.

[0064] Example 2:

[0065] Reference Figure 11 and Figure 12 The basic structure is the same as that of the previous example, except that the second frame 3 is a three-dimensional frame. Compared with the previous example, the hinge point between the first frame 2 and the second frame 3 is moved downward. In order to obtain high-level support for the seat frame 7, the following specific adjustments need to be made:

[0066] The two horizontal bars 31 and the two longitudinal bars 32 are connected to form a rectangular frame through four vertical bars 33. The rear ends of the two longitudinal bars 32 or the rear two vertical bars 33 are provided with an axle seat 35 for positioning the seat frame, and the front horizontal bar 31 is provided with a push rod hinge seat 361 and a linkage hinge seat 362; the seat frame 7 is positioned on the axle seat 35 on the rear side of the second frame through hinge shafts on both sides of the seat turning position, and one end of the electric push rod 9 is hinged to the front end of the seat cushion part 71 of the seat frame, and the other end is hinged to the push rod hinge seat 361 of the front horizontal bar. The front end of the seat cushion part 71 is also hinged to the middle part of the crank 101 in the linkage assembly. The linkage assembly includes a crank 101 and a connecting rod 102. The roller 103 provided at one end of the crank 101 can abut against the back of the leg frame 8, and the other end is hinged to the connecting rod 102. The other end of the connecting rod 102 is hinged to the linkage hinge seat 362 of the front horizontal bar.

[0067] To enhance the rigidity of the two longitudinal rods 32, an upper crossbar 37 can be connected to the front ends of the two longitudinal rods 32, or additional longitudinal rods can be installed between the two vertical rods 33 on either side. In this example, the two longitudinal rods 32 are connected to the tops of the vertical rods 33. Alternatively, they can be connected to the waist of the vertical rods, with the tops of the vertical rods securing the axle seats 35, for even greater stability. In addition to this variation, the following structure can also be adopted.

[0068] Reference Figure 13 The second frame 3 is a three-dimensional triangular frame, with two longitudinal rods 32 arranged at an angle, lower in front and higher in the back. Axle seats 35 are provided at the upper end of the longitudinal rods 32 or at the upper ends of the vertical rods. The load-bearing capacity here can be distributed to the crossbars through the triangle, making it more stable. Alternatively, the longitudinal rods 32 and vertical rods 33 can be combined into an isosceles triangle, with axle seats 35 provided at the top corners. This creates a more reasonable load-bearing structure. In this case, the swing fulcrum position of the seat frame 7 must be carefully positioned to ensure that the center of gravity is close to the support center of gravity.

[0069] Furthermore, the seat frame 7 provided in the figure includes a cushion portion 71 and a backrest portion 72, both of which have the following structures: 1. Rigid as a whole, such as a seat frame 7 with an L-shaped track, which is constrained by the rigid L-shaped track to form a whole; 2. Split, formed by being hinged to form a moving body, such as the structure in the figure, the two are connected through two hinge points to form a whole that can swing synchronously; 3. Split, through being hinged and under the action of an electric push rod, the two can change the angle between them; that is, the seat cushion portion 71 and the backrest portion 72 are hinged together on both sides through a coaxial hinge shaft, and an electric push rod is arranged between the cross beams at the bottom of the two. By controlling the extension and retraction of the electric push rod, the angle between the seat cushion portion and the backrest portion can be adjusted and positioned to meet the pursuit of comfort.

[0070] The above descriptions of the front and back positions are based on the orientation of the massage chair, with the seat cushion at the front and the backrest at the back.

Claims

1. An electric shaking device, characterized in that: include, Base frame (1), The first frame (2) is positioned on the bracket (11) of the base frame via coaxial transverse axis sections (21) on its left and right sides; A second frame (3) is positioned on the first frame (2) at its front and rear sides via coaxial longitudinal axis segments (22) for bearing the load and shaking; The first frame (2) is a rectangular structure or a diamond structure, and can provide a hinge position for the transverse axis section (21) and the longitudinal axis section (22). The second frame (3) includes two front and rear transverse bars (31) and at least two longitudinal bars (32) for connecting the two transverse bars. The two transverse bars (31) are located outside the first frame (2), and the two longitudinal bars (32) connect the two transverse bars (31) into a whole. A power mechanism (4) is mounted on the base frame (1) and is used to drive the second frame (3) to shake; There are two types of driving structures between the power mechanism (4) and the second frame (3): one is axial eccentric drive, in which two longitudinal rods (32) in the second frame (3) are symmetrically distributed on two cross rods (31), and a driving rod (34) perpendicular to the plane formed by the two longitudinal rods (32) is provided between the two longitudinal rods (32), and the other end of the driving rod (34) is eccentrically connected to the output end face of the power mechanism (4) through a joint bearing (5); ... An A-axis segment (61) of a right-angled axis (6) is rotatably provided at a position away from the longitudinal axis segment (22), and the A-axis segment (61) is parallel to the longitudinal axis segment (22). The B-axis segment (62) of the right-angled axis (6) is connected to the eccentric axis (422) output by the power mechanism (4) via a driving chain rod (53); or a crossbar (31) of the second frame (3) is connected to the eccentric axis (422) output by the power mechanism (4) via a joint bearing (5) at a position away from the longitudinal axis segment (22).

2. An electric shaking device according to claim 1, characterized in that: The second frame (3) has the following two structures:

1. a planar frame, wherein the two longitudinal rods (32) cross the first frame (2) and are fixed to the upper surface of the transverse rod (31), and the gap spanned is larger than the swing stroke of the second frame (3) relative to the first frame (2); 2. a three-dimensional frame, wherein the two longitudinal rods (32) are connected to the two transverse rods (31) at both ends through the vertical rod (33), or the two longitudinal rods (32) are arranged obliquely, with one end fixed to one transverse rod (31) and the other end connected to the other transverse rod (31) through the vertical rod (33).

3. The electric shaking device according to claim 1, characterized in that: The power mechanism (4) includes a motor (41) and a gearbox (42). The motor (41) outputs rotational power after being changed in speed by the gearbox (42). There are two types of output structures. One is that a ball head seat (51) or an eccentric shaft (422) is directly fixed at an eccentric position of the gearbox's final gear surface (421); the other is that a turntable is locked on the output shaft of the gearbox (42), and a ball head seat (51) or an eccentric shaft (422) is fixed at an eccentric position of the turntable.

4. A massage chair frame, comprising a seat frame (7), an electric push rod (9), and a leg frame (8) hinged to the front end of the seat cushion portion (71) of the seat frame, and the electric rocking device according to any one of claims 1 to 3; the seat frame (7) is driven by the electric push rod (9) to achieve continuous change between a sitting position and a lying position; and characterized in that: The second frame (3) is a plane frame, and shaft seats (35) for positioning the seat frame (7) are provided at both ends of the rear cross bar (31), and a lower cross bar (36) is provided just below the front cross bar (31), and a push rod hinge seat (361) and a linkage hinge seat (362) are provided on the lower cross bar (36); the seat frame (7) is positioned on the shaft seat (35) at the rear side of the second frame through hinge shafts on both sides of the seat turning position, and one end is hinged to the electric push rod (9) at the front end of the seat cushion portion (71) of the seat frame. The other end is hinged to the push rod hinge seat (361) of the lower cross bar (36), and the front end of the cushion portion (71) is also hinged to the middle part of the crank (101) in the linkage assembly (10). The linkage assembly (10) includes a crank (101) and a connecting rod (102). A roller (103) provided at one end of the crank (101) can abut against the back of the leg frame (8), and the other end is hinged to the connecting rod (102). The other end of the connecting rod (102) is hinged to the linkage hinge seat (362) of the lower cross bar (36).

5. The massage chair frame according to claim 4, characterized in that: The two longitudinal bars (32) on the second frame (3) are distributed at three equal parts of the cross bar (31), and two reinforcing bars (321) are connected to the lower surfaces of both ends of the two cross bars (31), and the two reinforcing bars (321) are located below the first frame (2).

6. A massage chair frame, comprising a seat frame (7), an electric push rod (9), and a leg frame (8) hinged to the front end of the seat cushion portion (71) of the seat frame, and the electric rocking device according to any one of claims 1 to 3; the seat frame (7) is driven by the electric push rod (9) to achieve continuous change between a sitting position and a lying position; and is characterized in that: The second frame (3) is a three-dimensional frame, wherein the two horizontal bars (31) and the two longitudinal bars (32) are connected to form a rectangular frame via four vertical bars (33) or to form a triangular frame via two vertical bars (33), and an axle seat (35) for positioning the seat frame is provided on the rear ends of the two longitudinal bars (32) or the rear two vertical bars (33), and a push rod hinge seat (361) and a linkage hinge seat (362) are provided on the front horizontal bar (31); the seat frame (7) is positioned on the axle seat (35) on the rear side of the second frame via hinge shafts on both sides of the seat turning position, and one end is hinged to the seat frame. (7) The other end of the electric push rod (9) at the front end of the cushion portion (71) is hinged to the push rod hinge seat (361) of the previous cross bar (31). The front end of the cushion portion (71) is also hinged to the middle part of the crank (101) in the linkage assembly (10). The linkage assembly (10) includes the crank (101) and the connecting rod (102). The roller (103) provided at one end of the crank (101) can abut against the back of the leg frame (8) and the other end is hinged to the connecting rod (102). The other end of the connecting rod (102) is hinged to the linkage hinge seat (362) of the previous cross bar (31).

7. The massage chair frame according to claim 6, characterized in that: The front ends of the two longitudinal bars (32) of the second frame (3) are further connected to an upper transverse bar (37).

8. The massage chair frame according to claim 4 or 6, characterized in that: The seat frame (7) includes a seat cushion portion (71) and a backrest portion (72), and the two have the following structures:

1. Rigid integral body; 2. Split body, articulated by a hinge to form a moving body; 3. Split body, articulated by a hinge and under the action of an electric push rod, the two can change the angle.

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