An armrest adjusting mechanism for a foot bath massage chair

Abstract

The utility model discloses a handrail adjusting mechanism for foot bath massage chair, including assembly frame and the handrail of rotation setting on assembly frame, still include the positioning structure of handrail rotation after positioning, the positioning structure includes ratchet wheel and pawl, and one of ratchet wheel and pawl sets up on assembly frame, and the other sets up on handrail, and pawl can be movable to separate or catch ratchet wheel, when pawl separates ratchet wheel, and handrail can rotate relative to assembly frame and realize angle adjustment, when handrail rotates and is finished, pawl can be movable to catch ratchet wheel and realize handrail positioning, adopts the cooperation of ratchet wheel and pawl to realize handrail rotation locking, and the stability is relatively strong, and simple operation can hover at any angle in the prescribed rotation range.

Description

Technical Field

[0001] This utility model relates to the field of massager technology, and in particular to an armrest adjustment mechanism for a foot massage chair. Background Technology

[0002] In the prior art, some massage chairs have armrests that can be rotated to adjust the angle, such as foot massage chairs and home massage chairs. When the armrests rotate, dampers prevent them from automatically flipping, as shown in Chinese utility model patent, patent number: 202020974545.3. However, the damping effect of the armrests will deteriorate after long-term use. At this time, when the arm is placed on the armrest, the armrest is easy to rotate, and the stability is relatively poor. Summary of the Invention

[0003] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides an armrest adjustment mechanism for a foot massage chair, which uses a ratchet and pawl to achieve armrest rotation locking, resulting in strong stability.

[0004] This utility model discloses an armrest adjustment mechanism for a foot massage chair, including an assembly frame and an armrest rotatably mounted on the assembly frame, and a positioning structure for positioning the armrest after rotation. The positioning structure includes a ratchet and a pawl, one of which is mounted on the assembly frame and the other on the armrest. The pawl is movable to disengage from or engage with the ratchet. When the pawl disengages from the ratchet, the armrest can rotate relative to the assembly frame to achieve angle adjustment. When the armrest has finished rotating, the pawl can move to engage the ratchet to achieve armrest positioning.

[0005] The above technical solution achieves the rotation and positioning of the handrail through the cooperation of pawl and ratchet, with good locking effect and strong stability.

[0006] A further feature of this invention is that the ratchet is fixedly mounted on the assembly frame, and the pawl includes a hinge part, a locking part for locking the ratchet, and a transmission part for driving the locking part to move relative to each other. The hinge part is hinged to the handrail to form a rocker structure, and the transmission part is provided with a pull rope for driving the pawl to rotate forward and a tension spring for driving the pawl to rotate in the opposite direction.

[0007] Using the above technical solution, pulling the transmission part with a rope can drive the pawl to rotate in the forward direction, thereby disengaging the pawl from the ratchet and allowing the handrail to rotate relative to it. When the handrail has finished rotating, the rope is released, and the tension spring can drive the pawl to reset, causing the locking part to lock onto the ratchet, thus achieving positioning. This structure allows the handrail to be suspended at any angle.

[0008] A further feature of this invention is that it includes an angle limiting structure for restricting the rotation angle of the handrail.

[0009] By adopting the above technical solution, the angle limiting structure can prevent the handrail from rotating excessively, making it safer and more stable to use.

[0010] A further feature of this invention is that the angle limiting structure includes a limiting post disposed on the handrail, and the ratchet has a limiting surface that abuts against the limiting post.

[0011] Using the above technical solution, when the handrail rotates, it can drive the limiting post to move. When the limiting post moves to the ratchet position, the ratchet can abut against each other to limit the rotation angle.

[0012] A further feature of this invention is that the handrail is also provided with a wrench for pulling the pull rope. The wrench is located on the inner or front side of the handrail and is hinged to the handrail.

[0013] Using the above technical solution, when the wrench is turned, the pull rope can be pulled, which in turn drives the pawl to rotate, thereby disengaging the pawl from the ratchet. Furthermore, this allows the handle to be adjusted in angle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the wrench of this utility model when it is on the front side; Figure 2 This is a schematic diagram of the inner structure of the wrench of this utility model; Figure 3 This is a schematic diagram showing the positions of the ratchet and pawl of this utility model; Figure 4 This is a schematic diagram of the handrail and ratchet mechanism of this utility model. Figure 5 for Figure 4 Partial structural diagram. Detailed Implementation

[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings: In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] This utility model discloses an armrest adjustment mechanism for a foot massage chair, including an assembly frame 1 and an armrest 3 rotatably mounted on the assembly frame 1. In use, the assembly frame 1 can be the seat frame of the massage chair or an additional frame. It also includes a positioning structure 2 for positioning the armrest after rotation. In this utility model embodiment, the positioning structure 2 includes a ratchet 21 and a pawl 22. One of the ratchet 21 and the pawl 22 is mounted on the assembly frame 1, and the other is mounted on the armrest 3. The pawl 22 can move to disengage from or engage with the ratchet 21. When the pawl 22 disengages from the ratchet 21, the armrest 3 can rotate relative to the assembly frame 1 to achieve angle adjustment. When the armrest 3 has finished rotating, the pawl 22 can move to engage with the ratchet 21 to achieve armrest positioning. The rotation positioning of the armrest 3 is achieved through the cooperation of the pawl 22 and the ratchet 21, which has a good locking effect and strong stability.

[0017] The ratchet 21 is fixedly mounted on the assembly frame 1. The pawl 22 includes a hinge 221, a locking part 222 for locking the ratchet 21, and a transmission part 223 for driving the locking part 222 to move relative to each other. The hinge 221 is hinged to the handrail 3 to form a rocker structure. The transmission part 223 is provided with a pull rope 4 for driving the pawl 22 to rotate forward and a tension spring 5 for driving the pawl 22 to rotate in the opposite direction. By pulling the transmission part 223 with the pull rope, the pawl 22 can be driven to rotate forward, thereby causing the pawl 22 to disengage from the ratchet 21, allowing the handrail 3 to rotate relative to it. When the handrail 3 has finished rotating, the pull rope 4 is released, and the tension spring 5 can drive the pawl 22 to reset, so that the locking part 222 is locked onto the ratchet 21, thereby achieving positioning. This structure allows the handrail 3 to be suspended at any angle. Of course, the pawl 22 can also lock the ratchet 21 by telescopic means.

[0018] It also includes an angle limiting structure 6 for limiting the rotation angle of the handrail 3. The angle limiting structure 6 can prevent the handrail 3 from rotating excessively, making it safer and more stable to use.

[0019] The angle limiting structure 6 includes a limiting post 61 set on the handrail 3, and a limiting surface 62 on the ratchet 21 that abuts against the limiting post 61. When the handrail 3 rotates, it can drive the limiting post 61 to move. When the limiting post 61 moves to the position of the ratchet 21, it can abut against the ratchet 21 to form a limiting angle of rotation. Of course, the angle limiting can also be achieved by the cooperation of the limiting block and the limiting surface, or by the cooperation of the limiting surface and the limiting surface.

[0020] The handrail 3 is also provided with a wrench 7 for pulling the pull rope. The wrench 7 is located on the inner or front side of the handrail 3 and is hinged to the handrail 3. When the wrench 7 is rotated, it can pull the pull rope 4, which in turn drives the pawl 22 to rotate, thereby disengaging the pawl 22 from the ratchet 21. Furthermore, the handrail 3 can be adjusted in angle.

Claims

1. An armrest adjustment mechanism for a foot massage chair, comprising an assembly frame (1) and an armrest (3) rotatably mounted on the assembly frame (1), and further comprising a positioning structure (2) for positioning the armrest (3) after rotation, characterized in that: The positioning structure (2) includes a ratchet (21) and a pawl (22). One of the ratchet (21) and the pawl (22) is mounted on the assembly frame (1), and the other is mounted on the handrail (3). The pawl (22) can be moved to disengage from or engage with the ratchet (21). When the pawl (22) disengages from the ratchet (21), the handrail (3) can rotate relative to the assembly frame (1) to achieve angle adjustment. When the handrail (3) has finished rotating, the pawl (22) can move to engage with the ratchet (21) to achieve positioning of the handrail (3). The ratchet (21) is fixedly mounted on the assembly frame (1). The pawl (22) includes a hinge (221), a locking part (222) for locking the ratchet (21), and a transmission part (223) for driving the locking part (222) to move relative to each other. The hinge (221) is hinged to the handrail (3) to form a rocker structure. The transmission part (223) is provided with a pull rope (4) for driving the pawl (22) to rotate forward and a tension spring (5) for driving the pawl (22) to rotate in the opposite direction.

2. The armrest adjustment mechanism for a foot massage chair according to claim 1, characterized in that: It also includes an angle limiting structure (6) for limiting the rotation angle of the handrail (3).

3. The armrest adjustment mechanism for a foot massage chair according to claim 2, characterized in that: The angle limiting structure (6) includes a limiting post (61) provided on the handrail (3), and the ratchet (21) is provided with a limiting surface (62) that abuts against the limiting post (61).

4. The armrest adjustment mechanism for a foot massage chair according to claim 1, 2, or 3, characterized in that: The handrail (3) is also equipped with a wrench (7) for pulling the rope (4).

5. The armrest adjustment mechanism for a foot massage chair according to claim 4, characterized in that: The wrench (7) is located on the inside or front side of the handrail (3).

6. The armrest adjustment mechanism for a foot massage chair according to claim 5, characterized in that: The wrench (7) is hinged to the handrail (3).

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