Massage chair frame with lower limbs capable of swinging interactively

Abstract

The utility model relates to a massage chair frame with lower limbs capable of swinging interactively. The massage chair frame with the lower limbs capable of swinging interactively comprises a backrest frame, a cushion frame, a bottom frame, a track, a main electric push rod and a leg and foot frame hinged to the front end of the cushion frame. The track stretches across and is fixed between the backrest frame and the cushion frame, the cushion frame is arranged above the bottom frame, and the backrest frame and the cushion frame can move back and forth relative to the bottom frame under the driving of the main electric push rod and complete the continuous change between a sitting posture and a lying posture; wherein the leg frame is divided into a left leg frame and a right leg frame, and the left leg frame and the right leg frame are respectively hung at the front end of the cushion frame through coaxial shaft sections and are jointly driven by a power mechanism combined by two auxiliary electric push rods to alternately lift and swing. The left leg part and the right leg part are designed to be separated, the left leg frame and the right leg frame can be driven by the power mechanism to ascend and descend alternately, the requirements of different personalized massage trainings are met, and the functions of the massage chair are enriched.

Description

Technical field:

[0001] The utility model belongs to the technical field of massage chairs, and particularly relates to a massage chair frame with interactive swinging of lower limbs, in particular, the leg and foot frames can be separated and swing independently. Background technology:

[0002] Existing massage chairs all feature forward and backward movement, allowing for continuous adjustment between sitting and reclining positions, but the adjustment motions are relatively simple. Massage chairs are based on a massage chair frame with interactive lower-limb swinging motion, with various massage components installed, along with soft padding and a cover, forming a complete, working unit. A massage chair frame with interactive lower-limb swinging motion generally consists of a backrest frame, seat frame, base frame, tracks, electric actuators, and a leg support hinged to the front of the seat frame. The tracks can be either integrated L-shaped or segmented, spanning and fixed to the backrest and seat frames. Driven by the electric actuators, the backrest, seat, and leg support can move forward and backward relative to the base frame, enabling continuous transitions between sitting and reclining positions. The leg support can also synchronize with these movements, gradually raising to be flush with the seat frame when transitioning to a reclining position. However, currently, all leg support structures are integrated, requiring the legs to only rise and fall synchronously, failing to meet personalized needs for asynchronous movement between the left and right legs.

[0003] How to provide a solution that meets more personalized massage needs becomes the research object of this utility model. Summary of the invention:

[0004] The utility model aims to design a massage chair frame with leg and foot frames separately arranged and capable of independently completing the interactive swinging of lower limbs.

[0005] The technical solution of the present utility model is achieved as follows: a massage chair frame with interactive swinging of the lower limbs, the massage chair frame with interactive swinging of the lower limbs comprising: a backrest frame, a seat cushion frame, a base frame, a track and a main electric push rod, and a leg frame hinged at the front end of the seat cushion frame; the track spans and is fixed between the backrest frame and the seat cushion frame, the seat cushion frame is arranged above the base frame, and under the drive of the main electric push rod, the backrest frame and the seat cushion frame can move forward and backward relative to the base frame, and complete the continuous change between sitting and lying positions; it is characterized in that: the leg frame is divided into a left leg frame and a right leg frame, the left leg frame and the right leg frame are respectively suspended on the front end of the seat cushion frame by coaxial shaft sections, and are jointly driven by a power mechanism composed of two auxiliary electric push rods to lift and swing alternately.

[0006] The power mechanism includes a first pair of electric push rods, a second pair of electric push rods, a skateboard, a rocker arm and a linear guide; the linear guide rail is fixed on the seat cushion frame or the lower crossbeam of the track in a forward and backward direction, and the skateboard is locked on the slider of the linear guide rail and can move forward and backward under the drive of the first pair of electric push rods; the middle axis of the rocker arm is positioned in the middle of the skateboard, one end is connected to the left leg tripod through the left support rod, and the other end is connected to the right leg tripod through the right support rod, and the lower side of one end of the rocker arm is also hinged to the second pair of electric push rods, and the other end of the second pair of electric push rods is hinged to the crossbeam of the seat cushion frame, and the rocker arm is driven by the second pair of electric push rod to swing, and the swing of the rocker arm relative to the skateboard can drive the left leg tripod and the right leg tripod to alternately lift and fall.

[0007] Both ends of the left support rod, the right support rod and the second electric push rod are correspondingly hinged to the swing rod, the left leg tripod and the right leg tripod through a hinge seat with bidirectional swing.

[0008] The articulated seat has the following structure: 1. Vertical and bidirectional, the articulated seat is provided with holes for two hinge shafts in the vertical direction to pass through; 2. Ball head seat, one end of the ball head is correspondingly connected to the left support rod, the right support rod and the second electric push rod; 3. Universal joint.

[0009] The first pair of electric push rods and the second electric push rod are integrated electric push rods, or are motor-rack combinations; the motor-rack combination includes a motor, a gearbox, a rack and a retaining box, the motor is connected to the gearbox in a transmission manner, a gear is fixed on the output shaft of the gearbox, the rack is engaged with the gear, and the rack swingable engagement structure is maintained by a retaining box that can be rotatably positioned on the output shaft.

[0010] The utility model has a separate design for the left and right legs and feet. Driven by a power mechanism, the left leg stand and the right leg stand can be alternately raised and lowered, meeting the needs of different personalized massage training and enriching the functions of the massage chair. Description of the drawings:

[0011] The present invention will be further described below with reference to specific figures:

[0012] Figure 1 A side view of the initial state of the massage chair frame with interactive swinging of the lower limbs

[0013] Figure 2 Schematic diagram of the initial state of the massage chair frame with interactive swinging of the lower limbs

[0014] Figure 3 A top-down view of the massage chair frame in its initial state with the lower limbs interactively swinging

[0015] Figure 4 A top view of the swinging state of the massage chair frame with interactive swinging of the lower limbs

[0016] Figure 5Schematic diagram of the massage chair frame swinging state with the lower limbs swinging interactively

[0017] Figure 6 A side view of the swinging state of the massage chair frame with interactive swinging of the lower limbs

[0018] Figure 7 Schematic diagram of the swinging state of the massage chair frame with interactive swinging of the lower limbs

[0019] Figure 8 Schematic diagram of the massage chair frame with interactive swinging of the lower limbs

[0020] Figure 9 Schematic diagram of the motor rack combination driving the massage chair frame elevation angle

[0021] Figure 10 Schematic diagram of the motor rack combination drive structure

[0022] in

[0023] 1—backrest frame;

[0024] 2—seat cushion frame;

[0025] 3—base frame;

[0026] 4—track; 41—crossbeam;

[0027] 5—Main electric push rod;

[0028] 6—leg tripod; 61—left leg tripod; 62—right leg tripod; 63—axle section;

[0029] 7—power mechanism; 71—first electric push rod; 72—second electric push rod; 73—slide plate; 74—swing rod;

[0030] 75—linear guide rail; 76—left support rod; 77—right support rod;

[0031] 8—articulated seat;

[0032] 9—motor rack assembly; 91—motor; 92—gearbox; 921—output shaft; 93—rack; 94—holding box; 95—gear; Specific implementation method:

[0033] Reference Figures 1 to 8The massage chair frame with interactive swinging of the lower limbs includes: a backrest frame 1, a seat cushion frame 2, a base frame 3, a track 4 and a main electric push rod 5, and a leg and foot frame 6 hinged at the front end of the seat cushion frame 2; the track 4 spans and is fixed between the backrest frame 1 and the seat cushion frame 2, and the seat cushion frame 2 is arranged above the base frame 3, and under the drive of the main electric push rod 5, the backrest frame 1 and the seat cushion frame 2 can move forward and backward relative to the base frame 3, and complete the continuous change between sitting and lying positions, realizing the zero gravity adjustment process without occupying the rear space, satisfying the need to place the massage chair against the wall, which is also the function of existing conventional massage chairs.

[0034] The track 4 is generally an L-shaped track, or the track 4 can be the main body, and the backrest frame 1 and the cushion frame 2 are fixed to the backrest section and the cushion section of the track 4 respectively, and a crossbeam 41 is provided between the two tracks 4 or the backrest frame 1 and the cushion frame 2 to form a whole that can move relative to the base frame 3.

[0035] The leg frame 6 is divided into a left leg frame 61 and a right leg frame 62. The left leg frame 61 and the right leg frame 62 are respectively suspended on the front end of the seat cushion frame 2 through a coaxial shaft section 63, and are driven by a power mechanism 7 combined with two auxiliary electric push rods to lift and fall alternately to the left and right. In addition to massage, it can also train the knee joints.

[0036] The power mechanism 7 includes a first pair of electric push rods 71, a second pair of electric push rods 72, a slide 73, a rocker arm 74 and a linear guide rail 75; the linear guide rail 75 is fixed on the lower crossbeam of the seat cushion frame 2 or the track 4 in a forward and backward direction, and the slide 73 is locked on the slider of the linear guide rail 75, and can move forward and backward under the drive of the first pair of electric push rods 71; the middle axis of the rocker arm 74 is positioned in the middle of the slide 73, one end is connected to the left leg footrest 61 through the left support rod 76, and the other end is connected to the right leg footrest 62 through the right support rod 77, and the lower side of one end of the rocker arm 74 is also hinged to the second pair of electric push rods 72, and the other end of the second pair of electric push rods 72 is hinged to the crossbeam of the seat cushion frame 2, and the rocker arm 74 is driven by the second pair of electric push rods 72 to swing, and the swing of the rocker arm 74 relative to the slide 73 can drive the left leg footrest 61 and the right leg footrest 62 to alternately lift and fall.

[0037] Furthermore, both ends of the left support rod 76, the right support rod 77 and the second electric push rod 72 are correspondingly hinged to the rocker arm 74, the left leg tripod 61 and the right leg tripod 62 through a hinge seat 8 with bidirectional swing, satisfying the swing freedom in two directions.

[0038] The hinge seat 8 that can satisfy the two-way swing has the following structure: 1. Vertical two-way, the hinge seat 8 is provided with holes for the two hinge shafts in the vertical direction to pass through, such as Figure 8 The hinged seat is a sheet metal part with low processing cost and easy assembly.

[0039] 2. Ball head seat: one end of the ball head is connected to the left support rod, the right support rod and the second electric push rod, which can achieve adjustment in more than two directions and is more free and flexible; 3. Universal joint: the function is the same as the former.

[0040] During the working process, the initial position is sitting. Figures 1 to 3 , the first pair of electric push rods 71 ​​and the second pair of electric push rods 72 are both extended, the slide plate 73 is at the rear of the seat frame, and the left leg footrest 61 and the right leg footrest 62 are both in the dropped state; if the left and right legs are selected to be raised and lowered synchronously, the first pair of electric push rods 71 ​​and the second pair of electric push rods 72 are electrically controlled to contract and extend synchronously, thereby realizing the synchronous movement of both legs.

[0041] When the double-leg staggered lifting and lowering mode is selected, the first electric push rod 71 starts to retract first, drives the slide plate 73 and leads the rocker arm 74 to move toward the front end of the cushion frame. The rocker arm 74 is constrained by the second electric push rod 72 at one end, rotates and lifts the right leg footrest 62 through the right support rod 77. After lifting to the designed height, the first electric push rod 71 stops moving and the second electric push rod 72 is switched to retract. The retraction process is also a process of driving the rocker arm 74 to swing around the fulcrum positioned on the slide plate. The swing stroke causes the left leg footrest 61 to lift up and the right leg footrest 62 to fall down. The extension and retraction action of the second electric push rod 72 drives the left and right leg footrests to lift and fall alternately with the help of the rocker arm 74.

[0042] When the massage chair is retracted, the second auxiliary electric push rod 72 extends, the left leg support 61 falls into place, and the action stops. The first auxiliary electric push rod 71 is activated to extend, driving the slide 73 to move back into place, and the sitting position is restored. Since this structure only improves the lifting and lowering of the leg support, it does not affect the adjustment of the massage chair backrest to the reclining position. It is still controlled by the main electric push rod 5. Therefore, the above description does not explain the reclining position.

[0043] Reference Figure 9 and Figure 10 The first auxiliary electric push rod 71 and the second electric push rod 72 are integrated electric push rods, or motor-rack assembly 9; the motor-rack assembly includes a motor 91, a gearbox 92, a rack 93, and a retaining box 94. The motor 91 is in transmission connection with the gearbox 92. A gear 95 is fixed to the gearbox output shaft 921. The rack 93 meshes with the gear 95, and the rack 93 is maintained in a swingable meshing structure by a retaining box 94 that is rotatably positioned on the output shaft. In this example, the rack 93 adopts a swingable meshing structure to provide more flexible drive angle changes. In this case, the gearbox 92 can be rotated and positioned on the beam 41 to accommodate changes in the horizontal plane angle. Alternatively, the meshing angle of the rack 93 can be fixed, in which case it is the same as an integrated electric push rod.

Claims

1. A massage chair frame with interactive swinging of lower limbs, the massage chair frame with interactive swinging of lower limbs comprising: A backrest frame (1), a seat cushion frame (2), a base frame (3), a track (4) and a main electric push rod (5), and a leg frame (6) hinged at the front end of the seat cushion frame (2); the track (4) spans and is fixed between the backrest frame (1) and the seat cushion frame (2), the seat cushion frame (2) is arranged above the base frame (3), and under the drive of the main electric push rod (5), the backrest frame (1) and the seat cushion frame (2) can move forward and backward relative to the base frame (3), and complete the continuous change between the sitting position and the lying position; it is characterized in that: the leg frame (6) is divided into a left leg frame (61) and a right leg frame (62), the left leg frame (61) and the right leg frame (62) are respectively suspended at the front end of the seat cushion frame (2) through a coaxial shaft section (63), and are jointly driven by a power mechanism (7) composed of two auxiliary electric push rods to alternately lift and swing.

2. The massage chair frame with interactive lower limb swinging according to claim 1, characterized in that: The power mechanism (7) includes: a first pair of electric push rods (71), a second pair of electric push rods (72), a slide plate (73), a rocker (74) and a linear guide rail (75); the linear guide rail (75) is fixed on the seat frame or the lower crossbeam (41) of the track in a forward and backward direction; the slide plate (73) is locked on the slider of the linear guide rail (75) and can move forward and backward under the drive of the first pair of electric push rods (71); the middle axis of the rocker (74) is positioned in the middle of the slide plate (73), and one end is connected to the left support rod ( The second electric push rod (72) is hinged on the lower side of one end of the swing rod (74), and the other end of the swing rod (74) is hinged on the crossbeam (41) of the seat cushion frame (2). The second electric push rod (72) drives the swing rod (74) to swing. The swing of the swing rod (74) relative to the slide plate (73) can drive the left leg stand (61) and the right leg stand (62) to be alternately lifted and lowered.

3. The massage chair frame with interactive lower limb swinging according to claim 2, characterized in that: The left support rod (76), the right support rod (77) and both ends of the second electric push rod (72) are respectively hinged to the swing rod (74), the left leg tripod (61) and the right leg tripod (62) through a hinge seat (8) with bidirectional swing.

4. The massage chair frame with interactive lower limb swinging according to claim 3, characterized in that: The hinge seat (8) has the following structures:

1. Vertical bidirectional, the hinge seat is provided with holes for two hinge shafts in the vertical direction to pass through; 2. Ball head seat, one end of the ball head is correspondingly connected to the left support rod (76), the right support rod (77) and the second electric push rod (72); 3. Universal joint.

5. The massage chair frame with interactive lower limb swinging according to claim 2, 3 or 4, characterized in that: The first pair of electric push rods (71) and the second pair of electric push rods (72) are integrated electric push rods, or are motor-rack combinations (9); the motor-rack combination comprises a motor (91), a gearbox (92), a rack (93) and a retaining box (94); the motor (91) is connected to the gearbox (92) in a transmission manner; a gear (95) is fixed on the gearbox output shaft (921); the rack (93) is meshed with the gear (95), and the rack (93) is maintained in a swingable meshing structure by a retaining box (94) rotatably positioned on the output shaft.

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