A rocking massage chair frame

Abstract

The utility model relates to a kind of swing massage chair frame, comprising: backrest frame, cushion frame, middle frame, bottom bracket and electric push rod, and leg frame;Middle frame is movably placed in bottom bracket, and electric turntable mechanism for supporting and driving middle frame swing is set in the side of bottom bracket;The cushion frame of rear portion setting backrest frame is set above middle frame, is supported by middle frame, under the drive of electric push rod, the continuous change between sitting posture and lying posture is completed;Wherein: middle frame includes a support disc and longitudinal rod fixed on support disc, a transverse rod is welded in the rear end of longitudinal rod, or transverse rod is welded in front and rear end, and the support column of both ends of transverse rod is used to support cushion frame or backrest frame, to satisfy the continuous change of cushion frame and backrest frame from sitting to lying.This utility model uses longitudinal rod on support disc to provide the balanced support of cushion frame and backrest frame, more stable when 360 degree swing movement, and micro swing state is more easily to relax people, with good rest promoting effect.

Description

Technical Field

[0001] This utility model belongs to the field of massage chair technology, and specifically relates to a 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 movements. A proper massage chair, on the other hand, is a complete, functional unit formed by installing various massage components on a 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 actuators, 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 actuators, 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. However, the entire chair cannot rock. Previous solutions using electric turntables to drive the massage chair frame's rocking motion suffer from structural complexity and inadequate support.

[0003] The object of this utility model research is to provide a more reasonable technical solution. Summary of the Invention

[0004] The purpose of this invention is to design a rocking massage chair frame that can generate 360-degree swaying under the drive of a power mechanism and complete continuous changes in sitting and lying positions under the drive of an electric push rod.

[0005] The present invention is implemented as follows: a rocking massage chair frame, comprising: a backrest frame, a seat cushion frame, a middle frame, a base frame, and an electric push rod, as well as a leg support hinged to the front end of the seat cushion frame; the middle frame is movably resting on the base frame, and an electric turntable mechanism for supporting and driving the swing of the middle frame is provided on one side of the base frame; the backrest frame is located at the rear of the seat cushion frame, and the seat cushion frame is located above the middle frame and supported by the middle frame, and under the drive of the electric push rod, the backrest frame and the seat cushion frame can continuously change between sitting and reclining positions relative to the middle frame, and the leg support swings along with the middle frame under the action of the electric push rod or linkage mechanism; the middle frame is characterized by having any of the following structures: 1. The middle frame includes a mechanism that can abut against the turntable of the electric turntable mechanism. The system comprises a support plate and a longitudinal rod fixed to the support plate. A transverse rod is welded to the rear end of the longitudinal rod, and support columns are welded to both ends of the transverse rod. The rear part of the seat cushion frame or the lower part of the backrest frame is positioned on the two support columns by a hinge, forming a structure that can swing around the hinge. One end of the electric push rod is hinged to the intermediate frame, and the other end is hinged to the seat cushion frame or backrest frame. The intermediate frame includes a support plate that can abut against the turntable of the electric turntable mechanism and a longitudinal rod fixed to the support plate. Transverse rods are welded to both the front and rear parts of the longitudinal rod. A support column is hinged to the end of each of the two transverse rods. The upper ends of the four support columns are hinged to the seat cushion frame, forming a structure that can move back and forth. One end of the electric push rod is hinged to the intermediate frame, and the other end is hinged to the seat cushion frame or backrest frame.

[0006] The electric turntable mechanism includes a motor, a gearbox, an output shaft, and a turntable. The turntable is locked on an inclined shaft section of the output shaft, and the inclined shaft section passes through the shaft holes on the turntable and the support plate. A bolt or nut for moving and positioning the support plate is provided at the end of the inclined shaft section. The support plate has a longitudinal rod fixed on each side of the shaft hole, and a limiting arm is welded on one of the longitudinal rods. The suspended end of the limiting arm falls into the vertical slide groove of the base frame.

[0007] A bearing is embedded in the shaft hole of the support plate, and a bolt or nut abuts against the inner ring of the bearing.

[0008] As a preferred embodiment, in the electric turntable mechanism, the motor output is driven to the gearbox via a belt. The gearbox has a load-bearing steel sleeve, and the output shaft is positioned in the steel sleeve by two bearings. The upper end of the inclined shaft section of the output shaft is machined with a screw hole for locking the positioning bolt or a threaded section for locking the nut, and the lower end is locked with the final gear of the gearbox.

[0009] The front section of the two longitudinal rods on the support plate is folded downward and has a lug for hinged to one end of the electric push rod, and the other end of the electric push rod is hinged to the front of the seat frame.

[0010] The support plate has two longitudinal rods with downward folded-out sections at the front and rear, and a transverse rod is welded to the end of the folded-out section. A lug is provided on the folded-out section at the front of the longitudinal rod or on the transverse rod to hinge one end of the electric push rod. The other end of the electric push rod is hinged to the front of the seat cushion frame.

[0011] 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. A planar bearing, which is provided between the support disk and the turntable.

[0012] As a preferred embodiment, the backrest frame and the seat cushion frame are an integral structure, welded together at an angle greater than 90 degrees, and hinged to the support column through a shaft hole on one side of the backrest frame; or, they are hinged to the front and rear support columns through shaft holes on the front and rear of the seat cushion frame respectively.

[0013] As a preferred embodiment, the backrest frame and the seat cushion frame are separate structures, having any of the following hinge structures: 1. The rear part of the seat cushion frame is hinged to the support column, and the lower end of the backrest frame is hinged to the seat cushion frame; 2. The lower end of the backrest frame is hinged to the support column, and the rear part of the seat cushion frame is hinged to the backrest frame.

[0014] The linkage mechanism of the leg support includes a swing rod and a traction rod, one end of which are hinged to the front of the seat frame. The lower end of the swing rod is provided with a roller facing forward to abut against the back of the leg support, and the middle part is provided with a drive arm facing backward. The drive arm is hinged to the end of the traction rod, and the other end of the traction rod is hinged to the lug at the front end of the longitudinal rod.

[0015] This utility model features a unique design, reasonable structure, stable support, and a strong rocking experience. It utilizes the longitudinal rods on the support plate to provide balanced support for the seat cushion and backrest, making it more stable during 360-degree swinging motion. The slight rocking motion makes it easier for people to relax and has a good rest-promoting effect. Attached Figure Description

[0016] The invention will be further described below with reference to specific figures: Figure 1 Schematic diagram of a rocking massage chair frame Figure 2 Side view diagram of a rocking massage chair frame Figure 3 Top view of the rocking massage chair frame Figure 4 Exploded view of the rocking massage chair frame Figure 5 Schematic diagram of cross section of electric turntable mechanism Figure 6 Schematic diagram of two sides of the rocking massage chair frame Figure 7 Schematic diagram of a rocking massage chair frame Figure 8 A three-sided view diagram of a rocking massage chair frame. Figure 9 A three-part exploded view of the rocking massage chair frame. in 1—Backrest frame; 2—Seat cushion frame; 21—Crossbeam; 3—Intermediate frame; 31—Support plate; 32—Longitudinal rod; 321—Folded-out part; 322—Axle lug; 33—Transverse rod; 34—Support column; 35—Limit arm; 4—Base frame; 41—Vertical slide rail; 5—Electric linear actuator; 61—Swing rod; 611—Roller; 612—Drive arm; 62—Traction rod; 7—Electric turntable mechanism; 71—Motor; 72—Gearbox; 721—Steel sleeve; 722—Final stage gear; 73—Output shaft; 731—Tilting shaft section; 732—Bolt; 74—Turntable; 8—Hinge; 9—Bearing; 91—Side bearing; Detailed Implementation Example

[0017] Reference Figures 1 to 5 The massage chair frame includes: a backrest frame 1, a seat cushion frame 2, a middle frame 3, a base frame 4, and an electric push rod 5, as well as a leg rest hinged to the front end of the seat cushion frame 2. The backrest frame 1 is located at the rear of the seat cushion frame 2, and the seat cushion frame 2 is positioned above the middle frame 3 and supported by it. Driven by the electric push rod 5, the backrest frame 1 and seat cushion frame 2 can continuously change between sitting and reclining positions relative to the middle frame 3. The leg rest swings along with the backrest frame under the action of the electric push rod or a linkage mechanism. The middle frame 3 serves as a connecting element, and the base frame 4 provides the foundation for the swinging motion. The specific structure is as follows: The intermediate frame 3 is movably resting on the base frame 4, and an electric turntable mechanism 7 is provided on one side of the base frame 4 to support and drive the swing of the intermediate frame 3; Figure 5The electric turntable mechanism 7 includes a motor 71, a gearbox 72, an output shaft 73, and a turntable 74. In the electric turntable mechanism, the output of the motor 71 is driven to the gearbox 72 via a belt. The gearbox 72 has a load-bearing steel sleeve 721. The output shaft 73 is positioned within the steel sleeve 721 by two bearings 9. The upper end of the inclined shaft section 731 of the output shaft 73 has a threaded hole for the positioning bolt 732 to be inserted or a threaded section for the nut to be inserted, and the lower end is locked with the final stage gear 722 of the gearbox 72. The gearbox 72 is reinforced to meet load-bearing requirements, especially the load-bearing steel sleeve 721, which directly transfers the load to the base frame 4. The primary drive uses a belt, which allows slippage to protect the motor when resistance is too high.

[0018] The turntable 74 is locked onto the inclined shaft section 731 of the output shaft, and the inclined shaft section 731 passes through the shaft holes on the turntable 74 and the support plate 31. A bolt 732 or nut for locating the support plate 31 is provided at the end of the inclined shaft section 731. The end of the inclined shaft section 731 with the bolt 732 is machined with an internal thread hole. If a nut is provided, the end of the inclined shaft section is directly machined with an external thread. To prevent the support plate 31 from rotating, a bearing 9 is embedded in the shaft hole of the support plate 31, and the bolt 732 or nut abuts against the inner ring of the bearing 9.

[0019] The intermediate frame 3 includes a support plate 31 and a longitudinal rod 32 fixed on the support plate. A transverse rod 33 is welded to the rear end of the longitudinal rod 32, and support columns 34 are welded to both ends of the transverse rod 33. The rear part of the seat cushion frame 2 or the lower part of the backrest frame 1 is positioned on the two support columns 34 through a hinge pin 8, forming a structure that can swing around the hinge pin 8. One end of the electric push rod 5 is hinged to the intermediate frame 3, and the other end is hinged to the seat cushion frame 2 or the backrest frame 1, driving it to swing around the hinge pin 8. That is, the intermediate frame 3, the seat cushion frame 2, and the backrest frame 1 form an integral unit supported and driven by the electric push rod 5, realizing the swing around the axis. The intermediate frame 3, with the help of the support plate 31, abuts against the turntable 74 in the electric turntable mechanism, and is supported and can be driven to swing 360 degrees. The swing of the intermediate frame and the backrest frame is superimposed on each other, but they do not interfere with each other.

[0020] In addition, a longitudinal rod 32 is fixed on each side of the shaft hole of the support plate 31. A limiting arm 35 is also welded on one of the longitudinal rods 32. The suspended end of the limiting arm 35 falls into the vertical slide groove 41 of the base frame 4. This restrains the intermediate frame 3 from rotating.

[0021] The electric actuator 5 is preferably positioned at the front of the seat cushion frame 2, thus forming a balanced support structure with the support column 34. Specifically, a lug 322 is provided at the downward-folded portion 321 of the front section of the two longitudinal rods 32. This lug 322 provides a hinge for one end of the electric actuator 5, and the other end of the electric actuator 5 is hinged to the front of the seat cushion frame 2. In this way, the seat cushion frame 2 is supported from both the front and rear, ensuring operational stability.

[0022] In this example, the leg support is also driven by an electric push rod. One end is hinged to the crossbeam 21 at the bottom of the seat frame 2, and the other end is hinged to the swing rod 61. The swing rod 61 has a roller 611 facing forward. The roller 611 abuts against the back of the leg support to lift it up. When it falls, it relies on its own weight. Since the specific structure of the leg support is not involved, the labor-saving leg support in this example only provides the swing element 61 or other linkage mechanism that drives its lifting. Example

[0023] Reference Figure 6 This example mainly supplements another driving position of the electric push rod 5, and the scheme of using a linkage mechanism for the leg frame. One end of the electric push rod 5 that drives the seat cushion frame 2 and the backrest frame 1 to swing is hinged to the lug 322 of a horizontal bar at the rear, and the other end is hinged to the crossbeam 21 of the backrest frame. It can also drive the seat cushion frame and the backrest frame to swing around the hinge axis 8.

[0024] The leg support linkage mechanism includes a swing rod 61 and a traction rod 62, both hinged at one end to the front of the seat frame 2. The lower end of the swing rod 61 has a forward-facing roller 611 for contacting the back of the leg support, and the middle part has a rearward-facing drive arm 612. This drive arm 612 is hinged to the end of the traction rod 62, and the other end of the traction rod 62 is hinged to a lug 322 at the front end of the longitudinal rod 32. When adjusting to a reclining position, the front of the seat frame 2 rises, the swing rod 61 moves upward, and the drive arm 612 is restrained by the traction rod 62, causing the swing rod 61 to swing forward and lift the leg support. This leg support linkage mechanism can also be used in other intermediate frames 3 and seat frame 2 structures to replace the electric push rod driving the leg support. Example

[0025] Reference Figures 7 to 9 Another structure of the intermediate frame 3 includes a support plate 31 and a longitudinal rod 32 fixed on the support plate 31. The support plate 31 abuts against the turntable 74 in the electric turntable mechanism to obtain support and be driven to swing. Similarly, the intermediate frame is provided with a limit arm 35, which is constrained to rotate by the vertical slide groove 41 on the base frame. Preferably, there are two longitudinal rods 32, and transverse rods 33 are welded to both the front and rear ends. A support column 34 is hinged to the end of each of the two transverse rods 33. The upper ends of the four support columns 34 are correspondingly hinged to the seat cushion frame 2, forming a structure that can move forward and backward. One end of the electric push rod 5 is hinged to the intermediate frame 3, and the other end is hinged to the seat cushion frame 2 or the backrest frame 1, just like in Embodiment 1. Preferably, one end of the electric push rod 5 is hinged to the downward folded-out part 321 at the front of the longitudinal rod 32, and the other end is hinged to the front of the seat cushion frame 2. The electric push rod 5 serves as a positioning component for the unstable support of the four support columns 34, and can also drive the seat cushion frame 2 to move forward and backward by telescopic drive, while changing the angle of the seat cushion frame 2 and the backrest frame 1 to meet the changes between sitting and reclining postures. In this structure, when changing from a sitting posture to a reclining posture, the whole structure will move forward, reducing the space occupied by the backrest frame 1 at the rear.

[0026] To adjust the length of the two sets of support columns 34 to accommodate forward movement and reclining posture changes, both longitudinal rods 32 have downwardly folded-out portions 321 at their front and rear ends, with transverse rods 33 welded to the ends of these portions 321. A lug 322 is provided on the folded-out portion 321 or transverse rod 33 at the front of the longitudinal rod 32 to hinge one end of the electric push rod 5. The other end of the electric push rod 5 is hinged to the front of the seat cushion frame 2. In this example, the leg support and linkage mechanism or electric push rod are omitted; the solutions from the first two examples are applicable to this example. Additionally, the seat cushion frame 2 and backrest frame 1 in the illustration are an integrated structure, which can also be applied to a separate structure. In this case, an electric push rod or linkage mechanism needs to be added between the backrest frame 1 and the seat cushion frame 2 to position and adjust the angle of the backrest frame 1 relative to the seat cushion frame 2, so that the backrest frame and seat cushion frame can be laid flat, truly achieving a reclining position.

[0027] In summary, to reduce friction between the support disk 31 and the turntable 74, a lubrication device is provided between the support disk 31 and the turntable 74. This lubrication device has the following structure: 1. Ball bearings, disposed between the support disk 31 and the turntable 74. Corresponding annular grooves are provided on the facing sides of the support disk 31 and the turntable 74, and the ball bearings are clamped in the annular grooves; 2. A planar bearing 91, disposed between the support disk 31 and the turntable 74, such as... Figure 4 , Figure 5 and Figure 9 .

[0028] In the above example, the backrest frame 1 and the seat cushion frame 2 are both integral structures, welded together at an angle greater than 90 degrees, and hinged to the support column 34 through a shaft hole on one side of the backrest frame 1; or, they are hinged to the front and rear support columns 34 through corresponding shaft holes on the front and rear of the seat cushion frame 2. The integral structure is suitable for using L-shaped guide rails.

[0029] Alternatively, the backrest frame 1 and seat cushion frame 2 can be separate structures with any of the following hinge configurations: 1. The rear of the seat cushion frame 2 is hinged to the support column 34, and the lower end of the backrest frame 1 is hinged to the seat cushion frame 2; 2. The lower end of the backrest frame 1 is hinged to the support column 34, and the rear of the seat cushion frame 2 is hinged to the backrest frame 1. In this configuration, a linkage mechanism or electric push rod needs to be installed between the seat cushion frame 2 and the backrest frame 1 to adjust the angle between them, suitable for massage chairs that can be adjusted to a reclined position.

Claims

1. A rocking massage chair frame, the massage chair frame comprising: The backrest frame (1), seat cushion frame (2), intermediate frame (3), base frame (4), and electric push rod (5), as well as a leg support hinged to the front end of the seat cushion frame (2); the intermediate frame (3) is movably placed on the base frame (4), and an electric turntable mechanism (7) for supporting and driving the swing of the intermediate frame (3) is provided on one side of the base frame (4); the backrest frame (1) is located at the rear of the seat cushion frame (2), the seat cushion frame (2) is located above the intermediate frame (3), supported by the intermediate frame (3), and driven by the electric push rod (5), the backrest frame (1) and the seat cushion frame (2) can complete the continuous change between sitting and lying positions relative to the intermediate frame (3), and the leg support swings along with the electric push rod or linkage mechanism; the intermediate frame (3) is characterized in that: the intermediate frame (3) is any of the following structures:

1. The intermediate frame (3) includes a support plate (31) that can abut against the turntable (74) of the electric turntable mechanism and a longitudinal rod (32) fixed on the support plate, the rear end of the longitudinal rod (32) A transverse rod (33) is welded, and support columns (34) are welded to both ends of the transverse rod (33); the rear part of the seat cushion frame (2) or the lower part of the backrest frame (1) is positioned on the two support columns (34) by a hinge (8), forming a structure that can swing around the hinge (8); one end of the electric push rod (5) is hinged to the intermediate frame (3), and the other end is hinged to the seat cushion frame (2) or the backrest frame (1); the intermediate frame (3) includes a turntable (74) that can abut against the electric turntable mechanism. The upper support plate (31) and the longitudinal rod (32) fixed on the support plate (31) are provided. The longitudinal rod (32) has a transverse rod (33) welded to the front and rear. A support column (34) is hinged to the end of each of the two transverse rods (33). The upper ends of the four support columns (34) are correspondingly hinged to the seat cushion frame (2) to form a structure that can move back and forth. One end of the electric push rod (5) is hinged to the middle frame (3) and the other end is hinged to the seat cushion frame (2) or the backrest frame (1).

2. The rocking massage chair frame according to claim 1, characterized in that: The electric turntable mechanism (7) includes a motor (71), a gearbox (72), an output shaft (73), and a turntable (74). The turntable (74) is locked on the inclined shaft section (731) of the output shaft, and the inclined shaft section (731) passes through the shaft hole on the turntable (74) and the support plate (31). A bolt (732) or nut for moving and positioning the support plate (31) is provided at the end of the inclined shaft section (731). The support plate (31) has a longitudinal rod (32) fixed on each side of the shaft hole. A limiting arm (35) is also welded on one of the longitudinal rods (32). The suspended end of the limiting arm (35) falls into the vertical slide groove (41) of the base frame (4).

3. A rocking massage chair frame according to claim 2, characterized in that: A bearing (9) is embedded in the shaft hole of the support plate (31), and a bolt (732) or nut abuts against the inner ring of the bearing (9).

4. A rocking massage chair frame according to claim 2, characterized in that: In the electric turntable mechanism (7), the output of the motor (71) is transmitted to the gearbox (72) via a belt. The gearbox (72) has a load-bearing steel sleeve (721). The output shaft (73) is positioned in the steel sleeve (721) by two bearings (9). The upper end of the inclined shaft section (731) of the output shaft (73) is machined with a screw hole for the positioning bolt (732) to be locked in or a threaded section for the nut to be locked in. The lower end is locked with the final gear (722) of the gearbox (72).

5. A rocking massage chair frame according to claim 1 or 2, characterized in that: The front section (321) of the two longitudinal rods (32) on the support plate is provided with a lug (322) for hinged to one end of the electric push rod (5), and the other end of the electric push rod (5) is hinged to the front of the seat frame (2).

6. A rocking massage chair frame according to claim 1 or 2, characterized in that: The two longitudinal rods (32) on the support plate have downward folded-out portions (321) at the front and rear ends, and a transverse rod (33) is welded to the end of the folded-out portion (321). A lug (322) for hinged one end of the electric push rod (5) is provided on the folded-out portion (321) or the transverse rod (33) at the front of the longitudinal rod (32). The other end of the electric push rod (5) is hinged to the front of the seat frame (2).

7. A rocking massage chair frame according to claim 1 or 2, characterized in that: A lubrication device is provided between the support plate (31) and the turntable (74). The lubrication device has the following structure:

1. Ball bearings, which are provided between the support plate (31) and the turntable (74). The opposing sides of the support plate (31) and the turntable (74) are provided with corresponding annular grooves, and the ball bearings are clamped in the annular grooves; 2. Planar bearings, which are provided between the support plate (31) and the turntable (74).

8. A rocking massage chair frame according to claim 1, characterized in that: The backrest frame (1) and the seat cushion frame (2) are an integral structure, and are welded together at an angle greater than 90 degrees. They are hinged to the support column (34) through the shaft hole on one side of the backrest frame (1); or they are hinged to the support columns (34) distributed in front and behind through the shaft holes on the front and back of the seat cushion frame (2).

9. A rocking massage chair frame according to claim 1, characterized in that: The backrest frame (1) and the seat cushion frame (2) are separate structures, with any of the following hinge structures:

1. The rear part of the seat cushion frame (2) is hinged to the support column (34), and the lower end of the backrest frame (1) is hinged to the seat cushion frame (2); 2. The lower end of the backrest frame (1) is hinged to the support column (34), and the rear part of the seat cushion frame (2) is hinged to the backrest frame (1).

10. A rocking massage chair frame according to claim 1 or 2, characterized in that: The linkage mechanism of the leg support includes a swing rod (61) and a traction rod (62) with one end hinged to the front of the seat frame (2). The lower end of the swing rod (61) is provided with a roller (611) for abutting the back of the leg support, and the middle part is provided with a drive arm (612) for abutting the back. The drive arm (612) is hinged to the end of the traction rod (62), and the other end of the traction rod (62) is hinged to the lug (322) at the front end of the longitudinal rod (32).

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