Micro-shaking massage chair frame

Abstract

The invention relates to a micro-shaking massage chair frame which comprises a backrest frame, a cushion frame, a leg and foot frame, a bottom frame, a track and an electric push rod. The rail stretches across and is fixed between the backrest frame and the cushion frame, and the backrest frame and the cushion frame can move back and forth relative to the bottom frame under the driving of the electric push rod and complete the continuous change between a sitting posture and a lying posture; wherein a base frame is further arranged below the bottom frame, a rotating disc used for supporting the bottom frame is arranged on one side of the base frame, and the rotating disc is driven by a power mechanism locked in the base frame to rotate in a deflection mode. A supporting disc capable of abutting against the rotary disc and a limiting arm are arranged at the bottom of the bottom frame, and the limiting arm extends into a limiting vertical groove fixed to the base frame to restrain rotation of the bottom frame. The rotating disc and the supporting disc are matched to support the massage chair frame and drive the massage chair frame to deflect by 360 degrees, the micro-shaking action is overlaid on the basis of massage, and a good rest promoting effect is achieved.

Description

Technical fields:

[0001] This invention belongs to the field of massage chair technology, and specifically relates to a micro-rocking massage chair frame, especially a massage chair that can rock 360 degrees. Background technology:

[0002] Existing massage chairs only offer forward and backward movement with continuous changes between sitting and reclining positions, resulting in relatively monotonous adjustment options. A massage chair, on the other hand, is a complete, functional unit formed by installing various massage components on a massage chair frame, along with soft padding and a cover. The massage chair frame generally includes: a backrest frame, a seat cushion frame, a base frame, tracks, and electric push rods, as well as a leg support hinged to the front of the seat cushion frame. The tracks come in two types: integrated L-shaped tracks and segmented tracks. Both tracks span the backrest and seat cushion frames and are fixed to them. Driven by the electric push rods, they move forward and backward relative to the base frame, following the backrest and seat cushion frames, allowing for continuous changes between sitting and reclining positions. Aside from this, the entire chair cannot rock. Summary of the Invention:

[0003] The purpose of this invention is to design a micro-rocking massage chair frame that produces 360-degree rocking motion of the entire massage chair frame under the drive of a power mechanism.

[0004] The technical solution of this invention is implemented as follows: A micro-rocking massage chair frame, comprising: a backrest frame, a seat cushion frame, a base frame, a track, and an electric push rod, as well as a leg frame hinged to the front end of the seat cushion frame; the track spans and is fixed on the backrest frame and the seat cushion frame, the seat cushion frame is positioned above the base frame, and under the drive of the electric push rod, the backrest frame and the seat cushion frame can move back and forth relative to the base frame, completing continuous changes between sitting and reclining postures; the feature is that: a base frame is also provided below the base frame, and a turntable for supporting the base frame is provided on one side of the base frame, the turntable being driven by a power mechanism locked in the base frame to generate a wobbling rotation; the bottom of the base frame is provided with a support plate that can abut against the turntable and a limiting arm, the limiting arm extending out of the support plate and extending into a limiting vertical groove fixed on the base frame, constraining the rotation of the base frame.

[0005] The power mechanism includes a motor, a gearbox, and an output shaft. The output shaft has an inclined section, on which a turntable is locked and also passes through a shaft hole on a support plate, driving the turntable to oscillate and rotate.

[0006] A lubrication device is provided between the support disk and the turntable. The lubrication device has the following structure: 1. Ball bearings, which are provided between the support disk and the turntable. The opposing sides of the support disk and the turntable are provided with corresponding annular grooves, and the ball bearings are clamped in the annular grooves; 2. End face bearings, which are provided between the support disk and the turntable.

[0007] The drive end of the electric push rod is hinged to the seat frame, and the telescopic end is connected to the support plate in the base frame. The support plate is provided with a pair of hanging ears facing upwards. A pull rod is hinged to the hanging ears. One end of the pull rod is hinged to the telescopic rod end of the electric push rod. An angle constraint mechanism is provided between the pull rod and the electric push rod, or between the pull rod and the hanging ears.

[0008] The angle constraint mechanism has the following structure: 1. A sliding sleeve is provided between the pull rod and the electric push rod, the sliding sleeve is fitted on the electric push rod, and the two sides are locked to the pull rod; 2. The two lugs have inward folded edges, which cover the pull rod.

[0009] This invention features a unique concept, reasonable structure, novel movements, and a strong shaking experience. By using a turntable and support plate in combination, it supports and drives the massage chair frame to swing 360 degrees, adding micro-shaking movements on top of the massage, which has a good restorative effect. Attached image description:

[0010] The invention will be further described below with reference to specific figures:

[0011] Figure 1 Schematic diagram of a micro-rocking massage chair frame

[0012] Figure 2 Schematic diagram of the micro-rocking massage chair frame

[0013] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle

[0014] Figure 4 A schematic diagram showing the relationship between the support plate and the tie rod.

[0015] Figure 5 Exploded view of the power mechanism and turntable

[0016] Figure 6 Front view of the slightly rocking massage chair frame in forward tilt position.

[0017] Figure 7 A side view of the massage chair frame in a forward-tilted position.

[0018] Figure 8 A front view illustration of the slightly rocking massage chair frame in its tilted position.

[0019] Figure 9 A side view of the slightly rocking massage chair frame in its tilted position.

[0020] Figure 10 Diagram showing the reclining position of the micro-rocking massage chair frame.

[0021] in

[0022] 1—Backrest frame;

[0023] 2—Seat cushion frame;

[0024] 3—Base frame; 31—Support plate; 32—Limit arm; 33—Hanging lug; 331—Folded edge;

[0025] 4—track;

[0026] 5—Electric push rod; 51—Pull rod; 52—Sliding sleeve;

[0027] 6—Base frame; 61—Turntable; 611—Annular groove;

[0028] 62—Power mechanism; 621—Motor; 622—Gearbox; 623—Output shaft;

[0029] 6231—Inclined section; 63—Limiting vertical groove;

[0030] 7—Ball bearings; Detailed implementation method:

[0031] Reference Figures 1 to 5 The massage chair frame includes a backrest frame 1, a seat cushion frame 2, a base frame 3, a track 4, and an electric push rod 5, as well as a leg support hinged to the front end of the seat cushion frame 2 (the leg support is omitted in the figure). The track 4 spans and is fixed to the backrest frame 1 and the seat cushion frame 2. The seat cushion frame 2 is positioned above the base frame 3, and the electric push rod 5 is located between the seat cushion frame 2 and the base frame 3. Driven by the electric push rod 5, the backrest frame 1 and the seat cushion frame 2 can move back and forth relative to the base frame 3, completing a continuous change between sitting and reclining positions, which is a conventional structure. In addition, existing technologies also include welding the backrest frame 1 and the seat cushion frame 2 onto an integrated L-track to form a whole; and using a segmented track 4, with the backrest frame 1 and the seat cushion frame 2 hinged together to change the angle between them. The backrest frame 1 and seat cushion frame 2 structures of the above various types can all move back and forth relative to the base frame 3 under the drive of the electric push rod 5. Among the back and forth moving structures, there are also rolling movement schemes such as the arc groove and rollers used in the illustration, and schemes that use two sets of front and rear support rods to form a back and forth swing. These are all known existing technologies.

[0032] A base frame 6 is also provided below the base frame 3. A turntable 61 for supporting the base frame is provided on one side of the base frame 6. The turntable 61 is driven by a power mechanism 62 locked in the base frame to produce a yaw rotation. More specifically, the power mechanism 62 includes a motor 621, a gearbox 622 and an output shaft 623. The output shaft has an inclined section 6231. The turntable 61 is locked on the inclined section 6231. The inclined section 6231 also passes through a shaft hole provided on a support plate 31 on one side of the base frame 3 to form a positioning support for the support plate 31. The output shaft 623 drives the turntable 61 to yaw rotation and transmits the yaw to the support plate 31.

[0033] A support plate 31 and a limiting arm 32 are provided at the bottom of the base frame 3. The support plate 31 abuts against the turntable 61, and the limiting arm 32 extends out of the support plate and into a limiting vertical groove 63 fixed on the base frame 6, which restricts the rotation of the base frame 3, that is, it can only follow the turntable to make swaying motion and cannot rotate.

[0034] A lubrication device is provided between the support plate 31 and the turntable 61. The lubrication device has the following structure:

[0035] 1. A ball bearing 7 is disposed between the support plate 31 and the turntable 61. The opposing sides of the support plate 31 and the turntable 61 are provided with corresponding annular grooves 611, and the ball bearing 7 is clamped in the annular grooves 611. The ball bearing 7 plays a rolling support role and reduces rotational resistance.

[0036] 2. End face bearing, which is set between support plate 31 and turntable 61.

[0037] The drive end of the electric push rod 5 is hinged to the seat frame 2, and the telescopic end is connected to the support plate 31 in the base frame. More specifically, the support plate 31 has a pair of hanging ears 33 facing upwards, and a pull rod 51 is hinged to the hanging ears 33. One end of the pull rod 51 is hinged to the telescopic rod end of the electric push rod 5. An angle constraint mechanism is provided between the pull rod 51 and the electric push rod 5, or between the pull rod 51 and the hanging ears 33. The angle constraint mechanism has the following structure:

[0038] 1. A sliding sleeve 52 is provided between the pull rod 51 and the electric push rod 5. The sliding sleeve 52 is fitted onto the electric push rod 5 and locked to the pull rod 51 on both sides; Figure 3 The sliding sleeve 52 consists of a pair of bracket-shaped sheet metal parts that wrap around the electric push rod 5. Both ends are fixed to the pull rod 51 with screws to keep the pull rod 51 and the electric push rod 5 in basically the same direction, while also having a movement clearance margin to prevent the electric push rod 5 from tilting upwards and obstructing other components.

[0039] 2. Both loops 33 have inward-facing folded edges 331, such as Figure 4 The folded edge 331 covers the top of the pull rod 51. This also prevents the electric push rod 5 from tilting upwards.

[0040] The electric actuator 5 is positioned between the front crossbeam of the seat frame 2 and the support plate 31. The extension rod 51 cleverly moves the hinge point of the electric actuator's telescopic rod forward, achieving extension and retraction within a minimal space. Furthermore, in this structure, the weight of the base frame 3 and the load is borne by the output shaft 623. Therefore, an end-face bearing is also provided between the gearbox 622 and the output shaft 623 to bear the load. In this example, the gearbox 622 employs a two-stage transmission: the first stage is belt drive, and the second stage is gear drive. A reversing bevel gear set is also provided between the two. Of course, depending on space requirements, the first-stage belt drive can be rotated 90 degrees, eliminating the need for the reversing transmission mechanism.

Claims

1. A micro-oscillating massage chair frame, the massage chair frame comprising: The backrest frame (1), the cushion frame (2), the bottom frame (3), the track (4) and the electric push rod (5), and the leg frame hinged to the front end of the cushion frame (2); the track (4) is transversely arranged and fixed on the backrest frame (1) and the cushion frame (2), the cushion frame (2) is arranged above the bottom frame (3), and the backrest frame (1) and the cushion frame (2) can move forward and backward relative to the bottom frame (3) and complete the continuous change between the sitting posture and the lying posture under the driving of the electric push rod (5); characterized in that: a base frame (6) is further arranged below the bottom frame (3), one side of the base frame (6) is provided with a turntable (61) for supporting the bottom frame (3), the turntable (61) is driven by a power mechanism (62) locked in the base frame (6) to produce a deflection type rotation; the bottom of the bottom frame (3) is provided with a supporting disc (31) capable of abutting against the turntable (61) and a limiting arm (32), the limiting arm (32) extends out of the supporting disc (31) and extends into a limiting vertical slot (63) fixed on the base frame (6), and the bottom frame (3) is constrained from rotating.

2. A micro-oscillating massage chair frame according to claim 1, characterized in that: The power mechanism (62) comprises a motor (621), a gearbox (622) and an output shaft (623), the output shaft has an inclined section (6231), the turntable (61) is locked on the inclined section (6231) and also passes through an axle hole in the supporting disc (31), and the turntable (61) is driven to rotate in a deflection mode.

3. A micro-oscillating massage chair frame according to claim 1 or 2, characterized in that: A lubricating device is arranged between the supporting disc (31) and the turntable (61), and the lubricating device has the following structure: one, a plurality of balls (7) are arranged between the supporting disc (31) and the turntable (61), the facing surfaces of the supporting disc (31) and the turntable (61) are provided with corresponding annular grooves (611), and the balls (7) are clamped in the annular grooves (611); two, a pair of end face bearings are arranged between the supporting disc (31) and the turntable (61).

4. The micro-oscillating massage chair frame of claim 1, wherein: The driving end of the electric push rod (5) is hinged to the cushion frame (2), and the telescopic end is connected with the supporting disc (31) in the bottom frame; the supporting disc (31) is provided with a pair of hanging ears (33) upward, a pull rod (51) is hinged to the hanging ears (33), one end of the pull rod (51) is hinged to the telescopic rod end of the electric push rod (5), and an angle constraint mechanism is arranged between the pull rod (51) and the electric push rod (5) or between the pull rod (51) and the hanging ears (33).

5. A micro-oscillating massage chair frame according to claim 4, wherein: The angle constraint mechanism has the following structure: one, a sliding sleeve (52) is arranged between the pull rod (51) and the electric push rod (5), the sliding sleeve (52) is sleeved on the electric push rod (5), and both sides are locked on the pull rod (51); two, the two hanging ears (33) have inwardly folded edges (331), and the folded edges (331) cover above the pull rod (51).

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