Massage chair with angle convenient to adjust

Abstract

The utility model belongs to the technical field of massage chairs, and discloses a massage chair convenient for angle adjustment, which comprises a massage chair back, and the lower end of the massage chair back is rotatably connected with a massage chair base. According to the massage chair with the angle convenient to adjust, the electric push rod is arranged as a main driving part and is matched with a linkage structure of the first sliding rod and the second sliding rod, a multi-fulcrum angle adjusting system is formed, a traditional single driving mode is changed, and meanwhile, by means of the clamping effect of a limiting hole in a limiting rod and an inserting rod, the angle can be adjusted conveniently. And a motor is kept to drive an angle gear to drive a displacement ring, and then an insertion rod is extruded and fixed through an extrusion ring, so that double locking can be realized after angle adjustment is completed, the gap problem caused by mechanical wear due to long-term use of a single driving part is effectively avoided, and the angle positioning precision is remarkably improved. And tiny angle deviation possibly occurring when users with different weights are borne is reduced.

Description

Technical Field

[0001] This utility model relates to the field of massage chair technology, specifically a massage chair with an adjustable angle. Background Technology

[0002] With the fast pace of modern life and increasing work pressure, massage chairs, as a health device that can relieve fatigue and improve physical comfort, have been widely adopted in homes, offices and leisure and entertainment spaces. For massage chairs, the angle adjustment function between the backrest and the base is one of the core designs to improve the user experience. Users can adjust to different postures such as lying down, semi-reclining or upright according to their own needs to suit various scenarios such as relaxation, rest or working.

[0003] Currently, most massage chairs on the market rely on a single drive component to adjust the angle, and the angle is maintained mainly by the locking ability of the drive component itself. However, during long-term use, this type of structure is prone to gaps due to mechanical wear, which leads to a decrease in angle positioning accuracy. Especially when supporting users of different weights, slight angle deviations may occur, affecting the massage effect and safety of use. Utility Model Content

[0004] The purpose of this invention is to provide a massage chair with a convenient angle adjustment mechanism, in order to solve the problems mentioned in the background art, such as the easy decrease in positioning accuracy and the possible angle deviation of the existing massage chair angle adjustment structure, which in turn affects the massage effect and the safety of use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a massage chair with a convenient angle adjustment, comprising a massage chair backrest, a massage chair base rotatably connected to the lower end of the massage chair backrest, a fixed seat fixedly provided on the upper surface of one end of the massage chair base, and a slide rail fixedly provided on the outer surface of the lower end of the massage chair backrest directly opposite the fixed seat, and a sliding movable seat installed on the outer surface of the slide rail, and an electric push rod installed between the movable seats and the fixed seat at both ends of the massage chair base;

[0006] A rotating first sliding rod is installed on the outer surface of the fixed seat in the middle section of the massage chair base, and a rotating second sliding rod is installed on the outer surface of the movable seat in the middle section of the massage chair base. A limit rod is fixedly provided on the outer surface of the end of the second sliding rod facing the first sliding rod. A limit hole is opened on the outer surface of the limit rod. The outer surface of the first sliding rod is penetrated by a plug rod. A sliding compression ring is installed on the outer surface of the first sliding rod, and a displacement ring is rotatably connected to one end of the compression ring. A holding motor is fixedly installed on the outer surface of the compression ring, and an angle gear is fixedly connected to one end of the output shaft of the holding motor.

[0007] Preferably, the two ends of the electric push rod are rotatably connected to the fixed seat and the movable seat, respectively.

[0008] By adopting the above technical solution, the electric push rod can adapt to the angle change between the fixed seat and the movable seat by rotating at both ends during the extension and retraction process. This ensures that the electric push rod can smoothly drive the movable seat to slide on the slide rail, thereby stably driving the massage chair back to rotate to adjust the angle and avoiding the electric push rod from being stuck or damaged due to the connection fixation.

[0009] Preferably, one end of the limiting rod passes through one end of the first sliding rod, and the limiting rod and the first sliding rod are connected by sliding friction.

[0010] By adopting the above technical solution, when the backrest angle of the massage chair is adjusted, the limiting rod can move synchronously with the second sliding rod and slide smoothly within the first sliding rod, ensuring the linkage between the first and second sliding rods. This lays the foundation for achieving angle stability through the fixation of both rods. At the same time, the sliding friction connection can reduce resistance and wear during the movement.

[0011] Preferably, the limiting holes are evenly distributed on the outer surface of the limiting rod, and the limiting holes are engaged with the plug rod, and a spring is connected between the plug rod and the first sliding rod.

[0012] Using the above technical solution, the equidistantly distributed limiting holes can adapt to multi-angle fixing requirements. When the plug rod engages with the limiting holes at different positions, the limiting rod and the first sliding rod can be fixed, thereby locking the relative positions of the first sliding rod and the second sliding rod to maintain the angle. The spring can automatically pull the plug rod away from the limiting hole when it is not squeezed, making it easy to release the fixation and adjust the angle.

[0013] Preferably, the inner surface of one end of the extrusion ring is designed with a concave slope, and the concave slope of the extrusion ring is in contact with the end of the insertion rod located outside the first sliding rod.

[0014] Using the above technical solution, when the compression ring slides, its concave inclined surface can generate a gradually increasing compressive force on the insertion rod, pushing the insertion rod to accurately insert into the limiting hole, ensuring the tightness of the engagement. At the same time, the inclined surface design can efficiently convert the linear motion of the compression ring into the radial motion of the insertion rod, improving the stability and reliability of the locking operation.

[0015] Preferably, the displacement ring and the first sliding rod are threadedly connected, and a toothed block is fixedly provided on the outer surface of the end of the displacement ring facing the compression ring, and the displacement ring is connected to the angle gear through the toothed block.

[0016] By adopting the above technical solution, when the motor drives the angle gear to rotate, the displacement ring can be driven to rotate through the meshing transmission of the gear block. The threaded connection between the displacement ring and the first sliding rod can convert the rotation into linear motion, thereby pushing the extrusion ring to slide and realize the extrusion locking of the plug rod. The threaded connection has self-locking property, which can keep the displacement ring stably in its current position when the motor stops working, ensuring that the extrusion ring's extrusion force on the plug rod remains stable and guaranteeing the angle locking effect.

[0017] Compared with the prior art, the beneficial effects of this utility model are: this massage chair with convenient angle adjustment:

[0018] 1. By setting an electric push rod as the main driving component, and cooperating with the linkage structure of the first and second sliding rods, a multi-support angle adjustment system is formed, which changes the traditional single-drive mode. At the same time, by using the locking action of the limiting hole on the limiting rod and the plug-in rod, and by keeping the motor driving the angle gear to drive the displacement ring, and then by squeezing and fixing the plug-in rod through the squeezing ring, double locking can be achieved after the angle adjustment is completed. This effectively avoids the gap problem caused by mechanical wear of a single driving component after long-term use, significantly improves the angle positioning accuracy, and reduces the slight angle deviation that may occur when carrying users of different weights.

[0019] 2. The multi-locking structure ensures that the massage chair back and base remain stable after being adjusted to the desired angle. Even during long-term use, it can effectively prevent accidental angle changes. This not only avoids affecting the accuracy of the massage area due to angle deviation and ensures the stability of the massage effect, but also reduces the safety hazards that may be caused to users due to sudden angle changes, thus improving the overall safety of use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram showing the connection between the massage chair back, massage chair base, and fixing seat of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the connection between the fixed base, the movable base, and the electric push rod of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the connection between the first sliding rod, the second sliding rod, and the limiting rod of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the connection cross-section of the first sliding rod, the second sliding rod, and the limiting rod of this utility model;

[0025] Figure 6This is a three-dimensional structural diagram of the cross-sectional view of the connection between the first sliding rod and the plug rod of this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the connection between the displacement ring, the retaining motor, and the angle gear of this utility model.

[0027] In the diagram: 1. Massage chair backrest; 2. Massage chair base; 3. Fixed seat; 4. Slide rail; 5. Movable seat; 6. Electric push rod; 7. First sliding rod; 8. Second sliding rod; 9. Limiting rod; 10. Limiting hole; 11. Connecting rod; 12. Compression ring; 13. Displacement ring; 14. Holding motor; 15. Angle gear. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-7 This utility model provides a technical solution: a massage chair with an adjustable angle.

[0030] Example 1: This example discloses: a massage chair backrest 1, a massage chair base 2 rotatably connected to the lower end of the massage chair backrest 1, a fixed seat 3 fixedly provided on the upper surface of one end of the massage chair base 2, and a slide rail 4 fixedly provided on the outer surface of the lower end of the massage chair backrest 1 directly opposite the fixed seat 3, and a sliding movable seat 5 installed on the outer surface of the slide rail 4, and an electric push rod 6 installed between the movable seat 5 at both ends of the massage chair base 2 and the fixed seat 3;

[0031] The two ends of the electric push rod 6 are rotatably connected to the fixed base 3 and the movable base 5, respectively;

[0032] When it is necessary to adjust the angle between the massage chair backrest 1 and the massage chair base 2, the electric push rod 6 is activated. Since the two ends of the electric push rod 6 are rotatably connected to the fixed seat 3 and the movable seat 5 respectively, and the fixed seat 3 is fixed on the massage chair base 2, and the movable seat 5 is slidably installed on the slide rail 4 at the lower end of the massage chair backrest 1, the extension and retraction of the electric push rod 6 will drive the movable seat 5 to slide on the slide rail 4. As the movable seat 5 slides, the massage chair backrest 1 rotates about the rotation connection point with the massage chair base 2 as the axis, thereby realizing the adjustment of the backrest angle. When the electric push rod 6 stops extending and retracting, its own locking ability can maintain the current angle to a certain extent, completing the angle adjustment process.

[0033] Example 2: This example discloses the following based on Example 1: A rotating first sliding rod 7 is installed on the outer surface of the fixed seat 3 in the middle section of the massage chair base 2, and a rotating second sliding rod 8 is installed on the outer surface of the movable seat 5 in the middle section of the massage chair base 2. A limiting rod 9 is fixedly provided on the outer surface of the end of the second sliding rod 8 facing the first sliding rod 7. A limiting hole 10 is opened on the outer surface of the limiting rod 9. The outer surface of the first sliding rod 7 is penetrated by the plug rod 11. A sliding compression ring 12 is installed on the outer surface of the first sliding rod 7, and a displacement ring 13 is rotatably connected to one end of the compression ring 12. A holding motor 14 is fixedly installed on the outer surface of the compression ring 12, and an angle gear 15 is fixedly connected to one end of the output shaft of the holding motor 14.

[0034] One end of the limiting rod 9 passes through one end of the first sliding rod 7, and the limiting rod 9 and the first sliding rod 7 are connected by sliding friction.

[0035] Limiting holes 10 are evenly distributed on the outer surface of limiting rod 9, and the limiting holes 10 are engaged with the plug rod 11. A spring is connected between the plug rod 11 and the first sliding rod 7.

[0036] The inner surface of one end of the compression ring 12 is designed with a concave slope, and the concave slope of the compression ring 12 is in contact with the end of the plug rod 11 located outside the first sliding rod 7.

[0037] The displacement ring 13 is threadedly connected to the first sliding rod 7, and a toothed block is fixedly provided on the outer surface of the end of the displacement ring 13 facing the compression ring 12. The displacement ring 13 is connected to the angle gear 15 through the toothed block.

[0038] When the electric push rod 6 drives the massage chair back 1 to rotate, the movable seat 5 slides on the slide rail 4, which drives the second sliding rod 8 to move, causing the limiting rod 9 to slide within the first sliding rod 7. When the angle is adjusted to the desired position, the holding motor 14 starts, driving the angle gear 15 to rotate. Since the displacement ring 13 meshes with the angle gear 15 through the toothed block, and the displacement ring 13 is threadedly connected to the first sliding rod 7, the displacement ring 13 will move along the first sliding rod 7, thereby pushing the compression ring 12 to slide. The concave inclined surface of one end of the compression ring 12 and the insertion When the connecting rod 11 is in contact with the spring, its sliding action will compress the insert rod 11, causing the insert rod 11 to overcome the spring force and insert into the corresponding limiting hole 10 on the limiting rod 9, thereby fixing the first sliding rod 7 and the second sliding rod 8, and further stabilizing the chair back angle. When the angle needs to be adjusted again, the motor 14 is kept rotating in the opposite direction, driving the displacement ring 13 to move in the opposite direction. The compressive force of the compression ring 12 on the insert rod 11 disappears, and the insert rod 11 is released from the limiting hole 10 under the action of the spring, releasing the fixation. Then the electric push rod 6 can drive the angle to be adjusted again.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A massage chair with easily adjustable angle, comprising a massage chair backrest (1), wherein a massage chair base (2) is rotatably connected to the lower end of the massage chair backrest (1), characterized in that: A fixed seat (3) is fixedly installed on the upper surface of one end of the massage chair base (2), and a slide rail (4) is fixedly installed on the lower outer surface of the massage chair back (1) directly opposite the fixed seat (3). A sliding movable seat (5) is installed on the outer surface of the slide rail (4), and an electric push rod (6) is installed between the movable seat (5) at both ends of the massage chair base (2) and the fixed seat (3). The outer surface of the fixed seat (3) in the middle section of the massage chair base (2) is equipped with a rotating first sliding rod (7), and the outer surface of the movable seat (5) in the middle section of the massage chair base (2) is equipped with a rotating second sliding rod (8). A limit rod (9) is fixedly provided on the outer surface of the end of the second sliding rod (8) facing the first sliding rod (7). A limit hole (10) is opened on the outer surface of the limit rod (9). The outer surface of the first sliding rod (7) is penetrated by the plug rod (11). A sliding compression ring (12) is installed on the outer surface of the first sliding rod (7), and a displacement ring (13) is rotatably connected to one end of the compression ring (12). A holding motor (14) is fixedly installed on the outer surface of the compression ring (12), and an angle gear (15) is fixedly connected to one end of the output shaft of the holding motor (14).

2. The massage chair with easily adjustable angle according to claim 1, characterized in that: The two ends of the electric push rod (6) are rotatably connected to the fixed seat (3) and the movable seat (5) respectively.

3. A massage chair with easily adjustable angle according to claim 1, characterized in that: One end of the limiting rod (9) passes through one end of the first sliding rod (7), and the limiting rod (9) and the first sliding rod (7) are connected by sliding friction.

4. A massage chair with easily adjustable angle according to claim 1, characterized in that: The limiting holes (10) are distributed at equal angles on the outer surface of the limiting rod (9), and the limiting holes (10) are engaged with the plug rod (11), and a spring is connected between the plug rod (11) and the first sliding rod (7).

5. A massage chair with easily adjustable angle according to claim 1, characterized in that: The inner surface of one end of the compression ring (12) is designed with a concave slope, and the concave slope of the compression ring (12) is in contact with the end of the plug rod (11) located outside the first sliding rod (7).

6. A massage chair with easily adjustable angle according to claim 1, characterized in that: The displacement ring (13) is threadedly connected to the first sliding rod (7), and a toothed block is fixedly provided on the outer surface of the end of the displacement ring (13) facing the compression ring (12), and the displacement ring (13) is meshed with the angle gear (15) through the toothed block.

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