Massage chair frame

Abstract

The utility model relates to a massage chair frame which comprises a backrest frame, a cushion frame, a bottom frame, a track, an electric push rod and a leg and foot frame hinged to the front end of the cushion frame. The rail 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 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 driven by respective power mechanisms to lift and swing. The left leg part and the right leg part are separated, the left leg part and the right leg part can be driven by the power mechanism to synchronously ascend and descend and asynchronously and alternately swing, 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, wherein the leg and foot frames are separated to the left and right and can swing independently. Background technology:

[0002] Existing massage chairs all offer forward and backward movement, allowing for continuous adjustment between sitting and reclining positions, but the adjustment motions are relatively simple. A massage chair is constructed by attaching various massage components to a massage chair frame, along with soft padding and a cover, forming a complete, working unit. The massage chair frame generally consists of a backrest frame, a seat frame, a base frame, tracks, electric actuators, and a leg support hinged to the front of the seat frame. The tracks, which can be either integrated L-shaped or segmented, span the backrest and seat frames and are fixed to them. Driven by the electric actuators, the backrest, seat, and leg support can move forward and backward relative to the base frame, enabling continuous adjustment between sitting and reclining positions. The leg support also synchronizes 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 or fall synchronously, failing to meet personalized needs for asynchronous movement between 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 on the left and right sides and capable of independently completing lifting and swinging.

[0005] The technical solution of the present utility model is achieved as follows: a massage chair frame, which includes: a backrest frame, a seat cushion frame, a base frame, a track and an 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 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 through coaxial shaft sections, and are driven to lift and swing by their respective power mechanisms.

[0006] The power mechanism has the following three structures: 1. An electric push rod, one end of which is hinged to the seat cushion frame and the other end is hinged to a rocker arm, the upper end of the rocker arm is hinged to the front end of the seat cushion frame, and the lower end is hinged to a roller, which is in contact with the back of the leg frame with the help of the roller; 2. It includes a motor, a gearbox and a gear, the gear is locked on the output shaft of the gearbox, a rack is engaged with the gear, and the engagement is maintained by a retaining frame movably positioned on the output shaft, one end of the rack is hinged to a rocker arm, the upper end of the rocker arm is hinged to the front end of the seat cushion frame, and the lower end is hinged to a roller, which is in contact with the back of the leg frame with the help of the roller; 3. It includes a motor, a gearbox and a gear, the gear is locked on the output shaft of the gearbox, and fan teeth centered on the shaft section are fixed on the left and right leg frames respectively, and the fan teeth are engaged with the gear.

[0007] The retaining frame is a box body, which consists of a box bottom and a box cover locked with screws. Both are provided with corresponding axial holes, and can be rotatably sleeved on the output shaft through the axial holes and can swing freely relative to the output shaft; the box bottom is provided with a slot hole in the direction perpendicular to the axial hole, and the rack passes through the slot hole and can engage with the gear in the retaining frame.

[0008] The retaining frame consists of two clamping plates and a guide shaft arranged between the clamping plates. Corresponding shaft holes are set on the two clamping plates. The retaining frame can be rotatably sleeved on the output shafts on both sides of the gear through the shaft holes. The guide shaft contacts the surface of the rack away from the teeth.

[0009] A long slot is provided in the middle of the rack, and one or two guide shafts between the two clamping pieces pass through the long slot to maintain the meshing state of the rack and the gear.

[0010] The backrest frame and the seat cushion frame are fixed on the backrest section and the seat cushion section of the L-shaped track respectively, and cross beams are connected between the backrest section and the seat cushion section or between the backrest frame and the seat cushion frame respectively. Three coaxial hinge seats are provided on the cross beam at the front end of the seat cushion frame, one on each side and the middle, which are respectively used to hang the left leg tripod and the right leg tripod; the upper ends of the side frame rods of the left leg tripod and the right leg tripod are respectively provided with shaft sections facing outward, which are placed on the hinge seats and can be rotatably positioned by the flip cover configured on the hinge seats.

[0011] The inner end of the flip cover can be rotatably positioned by a transverse bolt axis or a rivet axis, and the outer end is locked with the hinge seat by a vertical bolt. After the flip cover is flipped back, the leg frame can be directly hung on the hinge seat.

[0012] The left and right legs and feet of the utility model are separated, and can be raised and lowered synchronously or swung asynchronously and staggeredly under the drive of a power mechanism, so as to meet the needs of different personalized massage training and enrich the functions of the massage chair. Description of the drawings:

[0013] The present invention will be further described below with reference to specific figures:

[0014] Figure 1 Schematic diagram of the massage chair frame from one side

[0015] Figure 2 A schematic diagram of a massage chair frame

[0016] Figure 3 A schematic diagram of a massage chair frame

[0017] Figure 4 Schematic diagram of the massage chair frame from both sides

[0018] Figure 5 Schematic diagram of massage chair frame 2

[0019] Figure 6 Schematic diagram of massage chair frame 3

[0020] Figure 7 Schematic diagram of the massage chair frame from three sides

[0021] Figure 8 Schematic diagram of the rack-type power mechanism

[0022] Figure 9 Schematic diagram of the meshing of rack and gear

[0023] Figure 10 for Figure 9 Decomposition diagram

[0024] Figure 11 Schematic diagram of the meshing of rack and gear

[0025] in

[0026] 1—backrest frame;

[0027] 2—seat cushion frame;

[0028] 3—base frame;

[0029] 4—track; 41—backrest section; 42—seat cushion section;

[0030] 5—electric push rod;

[0031] 6 - leg support; 61 - left leg support; 62 - right leg support; 63 - shaft section; 64 - frame rod;

[0032] 7—power mechanism; 71—motor; 72—gearbox; 721—output shaft; 73—gear; 74—rack;

[0033] 741—long slot; 75—cage; 751—bottom of the box; 752—box cover; 753—axis hole; 754—slot hole;

[0034] 755—clamping piece; 756—guide shaft; 76—sector tooth;

[0035] 8—rocker; 81—roller;

[0036] 9—crossbeam; 91—hinge seat; 92—flip cover; 93—bolt shaft; 94—bolt; Specific implementation method:

[0037] Reference Figures 1 to 3 , massage chair frame, 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, and a leg frame 6 hinged at the front end of the seat cushion frame; 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 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, which is also the conventional function of existing massage chairs.

[0038] 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 driven to lift and swing by their respective power mechanisms 7. The power mechanisms have the following three structures:

[0039] 1. Reference Figures 1 to 3 and Figure 8 The seat frame 72 comprises a motor 71, a gearbox 72, and a gear 73. The gear 73 is fixed to the output shaft 721 of the gearbox. A rack 74 meshes with the gear 73 and is maintained in mesh by a retaining bracket 75 movably positioned on the output shaft 721. One end of the rack 74 is hinged to a rocker 8. The upper end of the rocker 8 is hinged to the front end of the seat frame 2, and the lower end is hinged to a roller 81. The roller 81 abuts against the back of the leg frame 6. The two power mechanisms 7 are each driven to lift or lower via the rocker 8 located on the back of the left leg frame 61 and the right leg frame 62. The motor 71 in the power mechanism 7 drives the gear 73 to rotate, and the rocker 8 swings via the meshing rack 74. The roller 81 at the lower end of the rocker lifts the back of the leg frame, achieving the lifting or lowering operation. Since the rack 74 is hinged to the swing rod 8, the direction of the rack 74 changes with the swing of the leg frame 6. In order to maintain reliable engagement with the gear 73, a retaining frame 75 that can rotate with it is configured. The retaining frame 75 has the following two specific structures:

[0040] The first structure, refer to Figure 8 The retainer 75 is a box body, which is composed of a box bottom 751 and a box cover 752 locked with screws. Both are provided with corresponding shaft holes 753, which can be rotatably sleeved on the output shaft 721 with the help of the shaft holes 753; the box bottom 751 is provided with a slot 754 in the axial direction of the shaft hole 753, and the rack 74 passes through the slot 754 and can engage with the gear 73 in the retainer 751. The retainer 75 can swing freely relative to the output shaft 721 following the rack 74, while keeping the rack 74 engaged with the gear 73.

[0041] The second structure, such as Figure 9 and Figure 10 The retainer 75 consists of two clamping plates 755 and two guide shafts 756 disposed between them. The clamping plates 755 are provided with corresponding shaft holes 753. The shaft holes 753 allow the retainer 755 to be rotatably mounted on the output shafts 721 on either side of the gear 73. The two guide shafts 756 contact the surface of the rack 74 away from the teeth. The shaft holes 753 and the two guide shafts 756 form an isosceles triangle. To reduce resistance and enhance durability, self-lubricating copper sleeves can be fitted over the guide shafts 756.

[0042] Or as Figure 11 , a long slot 741 is provided in the middle of the rack 74, and the retainer 75 is composed of two clamping pieces 755 and a guide shaft 756 provided between the clamping pieces. Corresponding shaft holes 753 are provided on the two clamping pieces 755. With the help of the shaft holes 753, the output shaft 721 on both sides of the gear 73 can be rotatably sleeved. The guide shaft 756 passes through the long slot 741 in the middle of the rack to maintain the meshing state of the rack 74 and the gear 73 without hindering the change of the angle of the rack 74. It can also be rotated with the output shaft 721 on both sides of the gear 73. Figure 9 and Figure 10 Similarly, two guide shafts are used to ensure stable operation.

[0043] 2. Reference Figure 4 and Figure 5 The left and right leg supports 61 and 62 are each secured with a fan-shaped toothed section 76 centered on the shaft section 63. The fan-shaped toothed section 76 meshes with the aforementioned gears 73. The motor 71 drives the gears 73 to rotate, and the meshed fan-shaped toothed section 76 drives the left and right leg supports to rise or fall.

[0044] 3. Reference Figure 6 and Figure 7 The electric push rod 5 is hinged at one end to the seat cushion frame 2 and at the other end to a rocker 8. The upper end of the rocker 8 is hinged at the front end of the seat cushion frame 2 and the lower end is hinged to a roller 81, which is used to abut against the back of the leg and foot frame 1; the principle is similar to that of Example 1.

[0045] Furthermore, the backrest frame 1 and the seat cushion frame 2 are fixed on the backrest section 41 and the seat cushion section 42 of the L-shaped track respectively, and a crossbeam 9 is connected between the backrest section 41 and the seat cushion section 42 or between the backrest frame 1 and the seat cushion frame 2. Three coaxial hinge seats 91 are provided on the crossbeam 9 at the front end of the seat cushion frame 2, one on each side and the middle, which are used to hang the left leg tripod 61 and the right leg tripod 62 respectively; the upper ends of the side frame rods 64 on both sides of the left leg tripod 61 and the right leg tripod 62 are respectively provided with shaft sections 63 facing outward, and the shaft sections 63 are placed on the hinge seats 91 and are rotatably positioned by the flip cover 92 configured with the hinge seats 91. More specifically, the inner end of the flip cover 92 can be rotatably positioned by a transverse bolt shaft 93 or a rivet shaft, and the outer end is locked to the hinge seat 91 by a vertical bolt 94; after the flip cover 92 is flipped back, the leg frame 6 can be directly hung on the hinge seat 91, and the transversely arranged bolt shaft 93 can withstand a greater reaction force.

Claims

1. A massage chair frame, comprising: A backrest frame (1), a seat cushion frame (2), a base frame (3), a track (4) and an 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 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 driven to lift and swing by their respective power mechanisms (7).

2. The massage chair frame according to claim 1, characterized in that: The power mechanism (7) has the following three structures: first, an electric push rod (5), one end of which is hinged to the seat cushion frame (2) and the other end is hinged to a rocker (8), the upper end of the rocker (8) is hinged to the front end of the seat cushion frame (2) and the lower end is hinged to a roller (81), and the roller (81) is used to abut against the back of the leg and foot frame (6); second, a motor (71), a gearbox (72) and a gear (73), the gear (73) is locked on the output shaft (721) of the gearbox (72), a rack (74) is engaged with the gear (73), and is positioned by a movable retainer on the output shaft (721). The support frame (75) maintains the meshing, one end of the rack (74) is hinged to a swing rod (8), the upper end of the swing rod (8) is hinged to the front end of the cushion frame (2), and the lower end is hinged to a roller (81), which is used to abut against the back of the leg frame (6) with the help of the roller (81); Third, it includes a motor (71), a gearbox (72) and a gear (73), the gear (73) is locked on the output shaft (721) of the gearbox (72), and the left leg frame (61) and the right leg frame (62) are respectively fixed with a fan tooth (76) centered on the shaft section (63), and the fan tooth (76) is meshed with the gear (73).

3. The massage chair frame according to claim 2, characterized in that: The retainer (75) is a box body, which is composed of a box bottom (751) and a box cover (752) locked by screws. Both are provided with corresponding shaft holes (753). With the help of the shaft hole (753), the box can be rotatably sleeved on the output shaft (721) and can swing freely relative to the output shaft (721); the box bottom (751) is provided with a slot hole (754) in a direction perpendicular to the shaft hole (753), and the rack (74) passes through the slot hole (754) and can engage with the gear (73) in the retainer (75).

4. The massage chair frame according to claim 2, characterized in that: The retainer (75) is composed of two clamping pieces (755) and a guide shaft (756) arranged between the clamping pieces (755). Corresponding shaft holes (753) are provided on the two clamping pieces (755). The retainer (75) can be rotatably sleeved on the output shaft (721) on both sides of the gear (73) through the shaft holes (753). The guide shaft (756) contacts the surface of the rack (74) away from the teeth.

5. A massage chair frame according to claim 2 or 4, characterized in that: A long slot (741) is provided in the middle of the rack (74), and one or two guide shafts (756) between the two clamping pieces pass through the long slot (741) to maintain the meshing state of the rack (74) and the gear (73).

6. The massage chair frame according to claim 1, characterized in that: The backrest frame (1) and the seat cushion frame (2) are fixed on the backrest section (41) and the seat cushion section (42) of the L-shaped track (4) respectively. A crossbeam (9) is connected between the backrest section (41) and the seat cushion section (42) or between the backrest frame (1) and the seat cushion frame (2). Three coaxial hinge seats (91) are provided on the crossbeam (9) at the front end of the seat cushion frame (2), one each on both sides and in the middle, respectively used to suspend the left leg foot frame (61) and the right leg foot frame (62); the upper ends of the side frame rods (64) of the left leg foot frame (61) and the right leg foot frame (62) are respectively provided with shaft sections (63) facing outwards, and the shaft sections (63) are placed on the hinge seats (91) and are rotatably positioned by a flip cover (92) configured on the hinge seats (91).

7. The massage chair frame according to claim 6, characterized in that: The inner end of the flip cover (92) can be rotated and positioned by a transverse bolt shaft (93) or a rivet shaft, and the outer end is locked with the hinge seat (91) by a vertical bolt (94). After the flip cover (92) is opened backward, the leg frame (6) can be directly suspended on the hinge seat (91).

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