Independent large-angle lying mechanism of massage chair

Abstract

The utility model discloses an independent large-angle lying mechanism of a massage chair, which comprises a base and a chair seat sliding back and forth on the base, and a cushion frame, a shank frame and a backrest frame are arranged on the chair seat. The chair seat is further provided with a shank driving assembly used for driving the shank frame to overturn and lift, a backrest frame driving assembly used for driving the backrest frame to overturn and a chair seat driving assembly used for driving the chair seat to slide back and forth, and the backrest frame driving assembly comprises a first electric push rod arranged on the chair seat and a sliding block arranged on the first electric push rod in a sliding mode; the backrest frame is hinged to the seat, an extension frame is arranged at the bottom of the backrest frame, a hinge seat is arranged on the extension frame, the hinge seat is matched with the sliding block in a hinged mode, the backrest frame is independently driven to rotate in an electric push rod mode, the gravity of the electric push rod mainly acts on the cushion frame, and under the condition that negative-angle stretching can be achieved, the backrest frame can be driven to rotate. And the driving requirement can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of massagers, in particular to an independent large-angle lying mechanism of a massage chair. Background Art

[0002] In the prior art, there is a Chinese invention patent application, the patent number is "202410107897.1", the patent name is: a large-angle reclining mechanism for a massage chair seat, comprising a chair seat body (1), the chair seat body (1) comprising a seat frame (2), a back frame (3), a bottom frame (4) and a calf frame (5), the seat frame (2) comprising a cushion frame (6) and a fixed frame (7), the back frame (3) is rotatably arranged at one end of the seat cushion frame (6), the calf frame (5) is rotatably arranged at the other end of the seat cushion frame (6), a reclining mechanism (20) is provided between the seat cushion frame (6) and the fixed frame (7) for enabling the back frame (3) to lie down and stand up along one end of the seat cushion frame (6), the reclining mechanism (20) comprises at least two inclined support frames (8) fixedly arranged between the seat cushion frame (6) and the fixed frame (7), a reinforcing rod (9) is provided between adjacent support frames (8), and the reclining mechanism (20) comprises at least two inclined support frames (8) fixedly arranged between the seat cushion frame (6) and the fixed frame (7), and a reinforcing rod (9) is provided between adjacent support frames (8). The cushion frame (6), the reinforcement rod (9) and the support frame (8) on the side close to the backrest (3) are fixedly provided with an arc-shaped rack plate (21), and a rack (25) is provided on the side of the arc-shaped rack plate (21) away from the backrest (3). The backrest (3) is provided with an extension rod (28) extending in the direction of the rack (25). The top of the extension rod (28) is provided with a driving mechanism (22) for engaging with the rack (25) to realize the backrest (3) lying down and standing up. However, the rack is driven to rotate by the rack matching method, which requires the engagement of the motor, the gear and the rack. Because the entire backrest is relatively heavy, the power output of the motor is required to be relatively high if the gear is used to drive the backrest to rotate. In addition, because the motor is to be arranged on the extension rod, the large-power motor is relatively large in size, which is more troublesome to assemble. Moreover, the long-term torsional force of the motor output shaft to reposition is easily damaged, and the parts inside the motor are easily damaged. Summary of the invention

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an independent large-angle lying mechanism for a massage chair, which adopts an electric push rod to independently drive the backrest frame to rotate, and its gravity mainly acts on the seat cushion frame, which can achieve negative angle stretching and reduce the driving requirements.

[0004] The utility model discloses an independent large-angle lying mechanism for a massage chair, comprising a base and a seat sliding forward and backward on the base, the seat being provided with a cushion frame, a calf frame rotatably arranged on one side of the seat cushion frame and a backrest frame rotatably arranged on the other side of the seat cushion frame, the seat being further provided with a calf driving assembly for driving the calf frame to flip and lift, a backrest frame driving assembly for driving the backrest frame to flip and a seat driving assembly for driving the seat to slide forward and backward, characterized in that: the backrest frame driving assembly comprises a first electric push rod arranged on the seat, a slider slidably arranged on the first electric push rod, the backrest frame is hingedly arranged on the seat, and an extension frame is arranged at the bottom of the backrest frame, and an articulated seat is arranged on the extension frame, the articulated seat is articulated and cooperated with the slider so that the hinged point between the backrest frame and the seat is the center of a circle to form a seesaw structure, and the extension frame can be rotated to the bottom of the seat cushion frame to achieve lying flat at a negative angle.

[0005] By adopting the above technical scheme, when in use, the angle of the backrest can be adjusted by the backrest driving assembly, and the angle of the calf frame can be adjusted by the calf driving assembly. Further, through the cooperation of the backrest driving assembly and the seat driving assembly, the chair can slide forward while being folded down, so that it is suitable for the situation of leaning against the wall. The requirement for the free space on the rear side of the massage chair is relatively small, and the situation of leaning against the wall can be basically met. The backrest is hinged on the seat, and its gravity mainly acts on the seat, and the first electric push rod only needs to bear part of the force of the angle change, and its requirement is relatively low. Furthermore, by further extending through the extension frame, a seesaw structure can be formed, which further reduces the torque requirement and has a longer service life.

[0006] The utility model is further configured as follows: a guide rod is provided at the bottom of the seat, a guide rail is provided on the base at a position corresponding to the guide rod, the guide rod slides on the guide rail, and a first roller is provided at the bottom of the guide rod, the first roller abuts against the bottom of the guide rail, and a second roller is provided on the guide rail at a position corresponding to the top of the guide rod, the second roller abuts against the top of the guide rod.

[0007] By adopting the above technical solution, the cooperation of the guide rod and the guide rail can prevent the seat from deviating when sliding, making it more stable when sliding, and the cooperation of the first roller and the second roller can reduce friction, and further prevent the seat from moving up and down, with good stability.

[0008] The utility model is further configured as follows: the calf drive assembly comprises a second electric push rod arranged on the seat, one end of the second electric push rod is hingedly matched with the seat, and the other end of the second electric push rod is hingedly matched with the calf frame.

[0009] By adopting the above technical solution, the calf frame can be directly driven to rotate and flip through the second electric push rod, and the hinged cooperation at both ends can realize flexible change of angle, which is more practical without hard collision.

[0010] The utility model is further configured as follows: the seat drive assembly comprises a third electric push rod, one end of the third electric push rod is hingedly arranged on the base, and the other end of the third electric push rod is hingedly arranged on the seat.

[0011] By adopting the above technical solution, the third electric push rod can directly drive the seat to slide relative to each other, and the hinged cooperation at both ends can realize flexible change of angle, which will not cause a head-on collision and is more practical.

[0012] A further configuration of the utility model is that a non-slip foot pad is also provided at the bottom of the base.

[0013] By adopting the above technical solution, the seat can be more stable when sliding, and the base can be prevented from sliding relative to the seat.

[0014] A further configuration of the utility model is that a reinforcing rod is arranged on the backrest frame at a position corresponding to the extension frame.

[0015] The adoption of the above technical solution can prevent the extension frame from deformation, making its structure more rigid and more stable.

[0016] The utility model is further configured as follows: a hollow area is provided in the middle of the seat, and a massage movement running on the hollow area is also provided.

[0017] By adopting the above technical solution, the back and buttocks can be massaged by the massage movement moving on the hollow area, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model when sitting or standing;

[0019] Figure 2 This is a side view of the utility model when sitting or standing;

[0020] Figure 3 This is a schematic diagram of the structure of the calf support of the utility model when lying down;

[0021] Figure 4 This is a schematic diagram of the calf support structure when lying down according to the utility model;

[0022] Figure 5 It is an exploded view of part of the structure of the utility model. DETAILED DESCRIPTION

[0023] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The utility model discloses an independent large-angle reclining mechanism for a massage chair, comprising a base 1 and a seat 2 that slides forward and backward on the base 1, the seat 2 is provided with a cushion frame 21, a calf frame 22 that is rotatably arranged on one side of the cushion frame 21, and a backrest frame 23 that is rotatably arranged on the other side of the cushion frame 21, the seat 2 is also provided with a calf driving component 3 for driving the calf frame 22 to flip and lift, a backrest frame driving component 4 that drives the backrest frame 23 to flip, and a seat driving component 5 that drives the seat 2 to slide forward and backward. In the implementation case of the utility model, the The backrest frame driving assembly 4 includes a first electric push rod 41 arranged on the seat 2, and a slider 42 slidably arranged on the first electric push rod 41, and the backrest frame 23 is hingedly arranged on the seat 2 (the calf frame 22 can be hingedly arranged on the seat 2 or on the cushion frame 21), so that the backrest frame 23 and the seat 2 are hinged at the center of the circle to form a seesaw structure, and an extension frame 6 is arranged at the bottom of the backrest frame 23, and a hinge seat 7 is arranged on the extension frame 6, and the hinge seat 7 is hingedly cooperated with the slider 42, and the extension frame 6 can be rotated to the bottom of the cushion frame 21 to achieve lying flat at a negative angle.

[0026] By adopting the above technical scheme, when in use, the angle of the backrest frame 23 can be adjusted through the backrest frame driving component 4, the angle of the calf frame 22 can be adjusted by the calf driving component 3, and further, the backrest frame driving component 4 and the seat driving component 5 can cooperate to slide forward while the backrest frame 23 is folded down, so that it is suitable for the situation of leaning against the wall, and the requirement for the free space on the rear side of the massage chair is relatively small, which can basically meet the situation of zero leaning against the wall, and the backrest frame 23 is hingedly arranged on the seat 2, and its gravity mainly acts on the seat 2, and the first electric push rod 41 only needs to bear part of the angle change force, and its requirement is relatively low, and it can be further extended by the extension frame 6 to form a seesaw structure, which further reduces the torque requirement and has a longer service life.

[0027] A guide rod 8 is provided at the bottom of the seat 2, and a guide rail 9 is provided on the base 1 at a position corresponding to the guide rod 8. The guide rod 8 guides and slides on the guide rail 9, and a first roller 10 is provided at the bottom of the guide rod 8, the first roller 10 is abutted against the bottom of the guide rail 9, and a second roller 20 is provided on the guide rail 9 at a position corresponding to the top of the guide rod 8, the second roller 20 is abutted against the top of the guide rod 8. Through the cooperation of the guide rod 8 and the guide rail 9, the seat 2 can be prevented from deviating when sliding, making it more stable when sliding, and the cooperation of the first roller 10 and the second roller 20 can reduce friction, and further can prevent the seat 2 from moving up and down, and has good stability.

[0028] The calf drive assembly 3 includes a second electric push rod arranged on the seat 2, one end of the second electric push rod is hinged to the seat 2, and the other end is hinged to the calf frame 22. The second electric push rod can directly drive the calf frame 22 to rotate and flip, and the hinged cooperation at both ends can realize flexible change of angle, which will not be hard to use and is more practical. Of course, the calf frame can also be driven to rotate by a motor or a gear set.

[0029] The seat drive assembly 5 includes a third electric push rod, one end of which is hinged on the base 1, and the other end is hinged on the seat 2. The third electric push rod can directly drive the seat 2 to slide relative to each other, and the hinged cooperation at both ends can realize flexible changes in angles, which will not cause a head-on collision and is more practical. Of course, walking can also be achieved through the cooperation of motors, walking gears, racks, etc., or the cooperation of motors, gears and chains.

[0030] The bottom of the base 1 is also provided with an anti-skid pad 30, which can make the seat 2 more stable when sliding and prevent the base 1 from sliding relatively.

[0031] A reinforcing rod 60 is provided on the backrest frame 23 at a position corresponding to the extension frame 6 to prevent the extension frame 6 from deforming, thereby making the structure more rigid and more stable.

[0032] The seat 2 is provided with a hollow area 40 in the middle thereof, and also includes a massage movement 50 running on the hollow area 40 (the massage movement 50 belongs to the prior art and will not be introduced in detail herein, and the running of the massage movement 50 may be through the cooperation of a rack and a running gear, or may be through the cooperation of a sprocket). By the massage movement 50 running on the hollow area 40, the back and buttocks can be massaged, which is more practical.

Claims

1. A massage chair independent large-angle reclining mechanism, comprising a base (1) and a seat (2) that slides forward and backward on the base (1), the seat (2) being provided with a cushion frame (21), a calf frame (22) that is rotatably arranged on one side of the cushion frame (21), and a backrest frame (23) that is rotatably arranged on the other side of the cushion frame (21), the seat (2) being further provided with a calf driving component (3) for driving the calf frame (22) to flip and lift, a backrest frame driving component (4) for driving the backrest frame (23) to flip, and a seat driving component (5) for driving the seat (2) to slide forward and backward, characterized in that: The backrest frame driving assembly (4) comprises a first electric push rod (41) arranged on the seat (2), and a slider (42) slidably arranged on the first electric push rod (41); the backrest frame (23) is hingedly arranged on the seat (2), and an extension frame (6) is arranged at the bottom of the backrest frame (23), and a hinge seat (7) is arranged on the extension frame (6); the hinge seat (7) and the slider (42) are hingedly matched to form a seesaw structure with the hinge point of the backrest frame (23) and the seat (2) as the center of the circle, and the extension frame (6) can be rotated to the bottom of the cushion frame (21) to achieve lying flat at a negative angle.

2. The independent large-angle reclining mechanism of a massage chair according to claim 1, characterized in that: A guide rod (8) is arranged at the bottom of the seat (2), a guide rail (9) is arranged on the base (1) at a position corresponding to the guide rod (8), the guide rod (8) is guided and slid on the guide rail (9), a first roller (10) is arranged at the bottom of the guide rod (8), the first roller (10) abuts against the bottom of the guide rail (9), and a second roller (20) is arranged on the guide rail (9) at a position corresponding to the top of the guide rod (8), the second roller (20) abuts against the top of the guide rod (8).

3. The independent large-angle reclining mechanism of a massage chair according to claim 1 or 2, characterized in that: The calf drive assembly (3) comprises a second electric push rod disposed on the seat (2), one end of the second electric push rod being hingedly engaged with the seat (2) and the other end of the second electric push rod being hingedly engaged with the calf frame (22).

4. The independent large-angle reclining mechanism of a massage chair according to claim 3, characterized in that: The seat drive assembly (5) comprises a third electric push rod, one end of which is hingedly arranged on the base (1), and the other end of which is hingedly arranged on the seat (2).

5. The independent large-angle reclining mechanism of a massage chair according to claim 2, characterized in that: The bottom of the base (1) is also provided with an anti-slip foot pad (30).

6. The independent large-angle reclining mechanism of a massage chair according to claim 1 or 2, characterized in that: A reinforcing rod (60) is provided on the backrest frame (23) at a position corresponding to the extension frame (6).

7. The independent large-angle reclining mechanism of a massage chair according to claim 1 or 2, characterized in that: The seat (2) is provided with a hollow area (40) in the middle thereof, and also includes a massage movement (50) that moves on the hollow area (40).

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