Massage chair

Abstract

The utility model relates to a massage chair capable of stretching left and right legs in opposite directions. The massage chair comprises a chair frame and two leg massage devices which are independently arranged, the two leg massage devices can be installed on the chair frame in an up-down swinging mode, and the massage chair is characterized in that a leg swinging electric push rod is installed on the chair frame and comprises a double-output-end motor, a first push rod and a second push rod; the first output end of the double-output-end motor is in transmission connection with the first push rod, and the first push rod drives one leg massage device to swing; a second output end of the double-output-end motor is in transmission connection with a second push rod, and the second push rod drives the other leg massage device to swing; one leg swinging electric push rod can drive the two leg massaging devices to alternately swing up and down; a lifting support capable of moving up and down is arranged on the chair frame, a lifting power source is installed on the chair frame, and the lifting power source can drive the lifting support to move up and down. The massage chair can achieve a better stretching effect on legs.

Description

Technical Field

[0001] The utility model relates to massage equipment, in particular to a massage chair. Background Art

[0002] Massage chairs are a very common massage device on the market. Existing ordinary massage chairs generally include a seat massage part and a leg massage part. The leg massage part can swing to stretch the legs up and down. However, the left and right sides of the existing leg massage part are an integrated structure, that is, the leg massage part drives the left and right legs to swing up or down at the same time. This stretching method of the left and right legs in the same direction has a poor stretching effect and is not ergonomic. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model innovatively provides a massage chair that can achieve stretching of the left and right legs in opposite directions.

[0004] This massage chair includes a chair frame and two leg massage devices that can accommodate left and right legs, the two leg massage devices are independently arranged, and the two leg massage devices can be swung up and down and are installed on the chair frame, characterized in that: a leg-swinging electric push rod is installed on the chair frame, and the leg-swinging electric push rod includes a double-output motor, a first push rod and a second push rod; the first output end of the double-output motor is transmission-connected with the first push rod, and the first push rod drives one leg massage device to swing; the second output end of the double-output motor is transmission-connected with the second push rod, and the second push rod drives the other leg massage device to swing; one leg-swinging electric push rod can drive the two leg massage devices to swing up and down alternately; a lifting support that can move up and down is provided on the chair frame, and the lifting support is located behind the leg massage device, the leg-swinging electric push rod is hinged on the lifting support, and a lifting power source is installed on the chair frame, and the lifting power source can drive the lifting support to move up and down.

[0005] The lifting support is hinged on the chair frame so as to be able to swing up and down. The lifting power source is a lifting electric push rod, which is hinged on the chair frame. The lifting electric push rod includes a third push rod, which is hinged to the lifting support.

[0006] The first push rod is hinged to the first swing arm, one end of which is hinged to the chair frame, and the other end of which is equipped with a first action wheel. The first action wheel can act on the back of a leg massage device and swing the leg massage device upward; the second push rod is hinged to the second swing arm, one end of which is hinged to the chair frame, and the other end of which is equipped with a second action wheel. The second action wheel can act on the back of another leg massage device and swing the leg massage device upward.

[0007] The first output end of the dual-output motor is provided with a first worm, the first worm is meshed with the first worm wheel, the first worm wheel is connected to the first lead screw, the first lead screw is threaded with a first nut, the first nut is axially movably arranged in the guide tube, and the first nut is connected to the first push rod; the second output end of the dual-output motor is provided with a second worm, the second worm is meshed with the second worm wheel, the second worm wheel is connected to the second lead screw, the second lead screw is threaded with a second nut, the second nut is axially movably arranged in the guide tube, and the second nut is connected to the second push rod.

[0008] The leg massage device comprises a leg massage mechanism and a foot massage mechanism.

[0009] The leg massage mechanism and the foot massage mechanism are installed on a swing bracket, a connecting shaft is installed on the chair frame, the swing brackets of the two leg massage devices are rotatably connected to the connecting shaft, the leg massage mechanism includes a leg massage head and a leg massage motor, the foot massage mechanism includes a foot massage head and a foot massage motor, the leg massage mechanism and the foot massage mechanism are both installed on a first lifting frame, the first lifting frame is movably installed on the swing bracket, a first nut is installed on the swing bracket, a first screw and a first motor that drives the first screw to rotate are installed on the first lifting frame, and the first nut is threadedly connected to the first screw.

[0010] The leg massage mechanism is installed on a second lifting frame, the second lifting frame is movably installed on the first lifting frame, a second nut is installed on the second lifting frame, a second screw and a second motor that drives the second screw to rotate are installed on the first lifting frame, and the second screw is threadedly connected to the second nut.

[0011] The first lifting frame includes a side stand and a base, the side stand is equipped with a first guide rod, the swing bracket is provided with a first guide groove, and the first guide rod is movably arranged in the first guide groove.

[0012] The side stand is provided with a second guide groove, the second lifting frame is provided on the lifting seat, a second guide rod is provided on the lifting seat, and the second guide rod is movably arranged in the second guide groove.

[0013] According to a massage chair provided by the utility model, a leg-swinging electric push rod drives two independent left and right leg massage devices to swing alternately in opposite directions and up and down, thereby driving the left and right legs to stretch in opposite directions, which can achieve a better stretching effect on the legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the electric push rod for swinging legs;

[0017] Figure 4 Schematic diagram for the swing of two leg massage devices;

[0018] Figure 5 The structure of a single leg massage device is shown in FIG. Figure 1 ;

[0019] Figure 6 The structure of a single leg massage device is shown in FIG. Figure 2 ;

[0020] Figure 7 is a schematic structural diagram of a first lifting frame;

[0021] Figure 8 It is a structural schematic diagram of the lifting seat and the second guide groove;

[0022] Fig. 9 A three-dimensional massage device for a single leg Figure 1 ;

[0023] Fig.10 A three-dimensional massage device for a single leg Figure 2 (The leg massage mechanism and the foot massage mechanism move as a whole);

[0024] Fig.11 A three-dimensional massage device for a single leg Figure 3 (Leg massage mechanism moves). DETAILED DESCRIPTION

[0025] like Figure 1 The massage chair comprises a chair frame 13 and two leg massage devices A for receiving left and right legs, one leg massage device A for receiving left legs and the other leg massage device A for receiving right legs. Both leg massage devices A can be mounted on the chair frame 13 and can be swung up and down, and are independently arranged, that is, both leg massage devices A can be swung independently.

[0026] In order to drive the two leg massage devices A to swing independently, a leg swinging electric push rod B is installed on the chair frame 13. Figure 3As shown, the leg-swinging electric push rod B includes a double-output motor B0, a first push rod B1 and a second push rod B2; the first output end of the double-output motor B0 is connected to the first push rod B1, and the first push rod B1 drives a leg massage device A to swing, so that the first push rod B1 moves forward and backward to push a leg massage device A to swing up and down; the second output end of the double-output motor B0 is connected to the second push rod B2, and the second push rod B2 drives another leg massage device A to swing, so that the second push rod B2 moves forward and backward to push another leg massage device A to swing up and down; such a leg-swinging electric push rod B can drive the two leg massage devices A to swing up and down alternately. Here, "alternately swinging up and down" means: when the leg massage device A on the left swings upward, the leg massage device A on the right swings downward; and when the leg massage device A on the left swings downward, the leg massage device A on the right swings upward. That is, the two leg massage devices A swing up and down alternately. Through this innovative swinging method, the two legs can be stretched up and down (leg walking-style activity), the leg stretching is more complete, more ergonomic, and the stretching effect is more comfortable. It is also worth mentioning that, because it is driven by a dual-output motor B0, the swing of the left and right leg massage devices A can be completely synchronized, and the stretching effect of the left and right legs can be optimized.

[0027] When the massage chair is not in use, the two leg massage devices A are kept at the same height and in a flat position (such as Figure 2 In the case of a swing leg electric actuator, if Figure 2 If the massage device A is started in the state shown, one of the leg massage devices A will swing upwards and the other leg massage device A will swing downwards, and the leg massage device A that swings downwards will be stuck on the ground and cannot swing. Figure 2 As shown, the utility model is provided with a lifting support 14 that can move up and down on the chair frame 13. The lifting support 14 is located behind the leg massage device A, and the leg swinging electric push rod B is hinged on the lifting support 14. A lifting power source is installed on the chair frame 13, and the lifting power source can drive the lifting support 14 to move up and down. Through this structure, when the lifting power source drives the lifting support 14 to move upward, the lifting support 14 can drive the leg swinging electric push rod B to move upward. Since the leg swinging electric push rod B is connected to the two leg massage devices A, the two leg massage devices A can be lifted, such as Figure 4As shown, when the leg massage device A is lifted, the leg swinging electric push rod B starts to work, driving the left and right leg massage devices A to swing up and down alternately, so that the two leg massage devices A swing up and down alternately at a certain height position, and will not conflict with the ground; when the stretching action is completed, the leg swinging electric push rod B drives the two leg massage devices A to remain at the same height, and then the lifting power source drives the lifting support 14 to move downward, so that the two leg massage devices A are in a flat state, that is, placed on the ground. The advantage of this structure is that first, the human body's legs are lifted to a certain height by the lifting power source, so that both legs are stretched upward at the same time to obtain the stretching effect of stretching upward, and then the leg swinging electric push rod B drives the legs to swing up and down alternately, so that the two legs are opened up and down for stretching, and the legs are stretched more fully. In addition, since the lifting power source has lifted the two leg massage devices A to a certain height, the upward swing amplitude of each leg massage device A can be larger, and the stretching effect brought about is also better. It is also worth mentioning here that since the lifting power source will first lift the leg massage device A to a certain height, even if the leg-swinging electric push rod B fails, causing the leg massage device A to swing downward, the swinging angle will not be large, thereby protecting the human body (the leg-swinging electric push rod B will only work when the leg massage device A is lifted to the set height).

[0028] The lifting support 14 can move up and down in a linear manner (the up and down movement is achieved through a guide rail. In this case, any form of power source can be used as long as the lifting support 14 can be driven to move linearly), or in a swinging manner (the lifting support 14 is hinged to the chair frame 13 so that it can swing up and down. In this case, any form of power source can be used as long as the lifting support 14 can be driven to swing). For example, the lifting power source uses a lifting electric push rod C (the lifting electric push rod C is an ordinary electric push rod), which is hinged to the chair frame 13. The lifting electric push rod C includes a third push rod C3, and the third push rod C3 is hinged to the lifting support 14. By extending the third push rod C3 of the lifting electric push rod C back and forth, the lifting support 14 can be driven to swing up and down.

[0029] The first push rod B1 can be directly hinged to a leg massage device A, so that the first push rod B1 can directly drive the leg massage device A to swing up and down, and the second push rod B2 can be directly hinged to another leg massage device A, so that the second push rod B2 can directly drive the leg massage device A to swing up and down. However, this method has safety hazards. If an object, a small animal or even a human body comes under the leg massage device A, the push rod will pull the leg massage device A down and cause harm. In order to solve this problem, Figure 2As shown, the first push rod B1 is hinged to the first swing arm 16, one end of the first swing arm 16 is hinged to the chair frame 13, and the other end of the first swing arm 16 is equipped with a first action wheel 17. When the first push rod B1 drives the first swing arm 16 to swing upward, the first action wheel 17 on the first swing arm 16 acts on the back of a leg massage device A and makes the leg massage device A swing upward, while the leg massage device A swings downward only by its own weight; similarly, the second push rod B2 is also hinged to the second swing arm, one end of the second swing arm is hinged to the chair frame 13, and the other end of the second swing arm is equipped with a second action wheel. When the second push rod B2 drives the second swing arm to swing upward, the second action wheel on the second swing arm acts on the back of another leg massage device A and makes the leg massage device A swing upward, while the leg massage device A swings downward only by its own weight. Since both leg massage devices A swing downward by their own weight, if there is any object below, no pulling force will be applied and no harm will be caused. This structure also plays a role in protecting the leg swinging electric push rod B, preventing the leg swinging electric push rod B from being overloaded due to the presence of foreign objects. Of course, the above two methods are within the scope of protection of the patent.

[0030] Electric push rods are common actuators on the market, and the swing-leg electric push rod B of the present invention is just an additional push rod. The structure and working principle of the swing-leg electric push rod B are specifically introduced below.

[0031] like Figure 3As shown, the swing-leg electric push rod B adopts a dual-output motor B0, and the first output end of the dual-output motor B0 is provided with a first worm B8, the first worm B8 is meshed with the first worm wheel B5, the first worm wheel B5 is connected to the first screw rod B6, and the first nut B7 is threadedly connected to the first screw rod B6. The first nut B7 is axially movably arranged in the guide tube B3 (so that the first nut B7 can move on the first screw rod B6), and the first nut B7 is connected to the first push rod B1. When the dual-output motor B0 outputs, the first worm B8 rotates to drive the first worm wheel B5 to rotate (the first worm wheel B5 is installed in the housing B9 through the bearing B4), and the first worm wheel B5 drives the first screw rod B6 to rotate, and the first screw rod B6 rotates to drive the first nut B7 to move, and finally drives the first push rod B1 to move forward and backward; the second output end of the dual-output motor B0 is provided with a second worm, the second worm is meshed with the second worm wheel, the second worm wheel is connected to the second screw rod, the second screw rod is threaded with a second nut, the second nut is axially movable in the guide tube (so that the second nut can move on the second screw rod), and the second nut is connected to the second push rod B2. Similarly, when the dual-output motor B0 outputs, the second push rod B2 can move forward and backward. In order to allow the first push rod B1 and the second push rod B2 to move back and forth alternately (to allow the two leg massage devices A to swing up and down alternately), the worm gear structure on the left and the worm gear structure on the right use opposite spirals, that is, one worm gear is a positive spiral and the other worm gear is a negative spiral; the worm gear structure on the left and the worm gear on the right can also use the same spiral direction, while the screw nut structure on the left and the screw nut structure on the right use opposite spirals, that is, one screw nut structure is a positive spiral and the other screw nut structure is a negative spiral. These methods can make the first push rod B1 and the second push rod B2 move back and forth alternately, and all fall within the protection scope of this patent.

[0032] like Figure 5 As shown, the leg massage device A of the utility model includes a leg massage mechanism A1 and a foot massage mechanism A2. The leg massage mechanism A1 can massage the legs, while the foot massage mechanism A2 can massage the feet. When the leg massage device A swings, the leg massage mechanism A1 and the foot massage mechanism A2 swing together. Of course, the leg massage device A can only stretch the legs, and does not need the leg massage mechanism A1 and the foot massage mechanism A2. The leg massage device A can also have the leg massage mechanism A1 or the foot massage mechanism A2, and can also have the leg massage mechanism A1 and the foot massage mechanism A2 at the same time.

[0033] like Figure 5 As shown, the leg massage mechanism A1 and the foot massage mechanism A2 are both mounted on the swing bracket 1. Figure 1As shown, a connecting shaft 15 is installed on the chair frame 13, and the swing brackets 1 of the two leg massage devices A are rotatably connected to the connecting shaft 15. When the swing leg electric push rod B drives the swing bracket 1 to swing (the push rod of the swing leg electric push rod B is hinged to the swing bracket 1), the leg massage mechanism A1 and the foot massage mechanism A2 swing up and down together. The leg massage mechanism A1 includes a leg massage head 3 and a leg massage motor 30. The leg massage motor 30 drives the leg massage head 3 to rotate to achieve leg massage; the foot massage mechanism A2 includes a foot massage head 4 and a foot massage motor 40. The foot massage motor 40 drives the foot massage head 4 to rotate to achieve foot massage.

[0034] In order to adjust the overall vertical height of the leg massage mechanism A1 and the foot massage mechanism A2. The utility model installs the leg massage mechanism A1 and the foot massage mechanism A2 on the first lifting frame 2, and the first lifting frame 2 is movably arranged on the swing bracket 1, such as Figure 6 As shown, a first nut 90 is installed on the swing bracket 1, and a first screw rod 9 and a first motor 5 driving the first screw rod 9 to rotate are installed on the first lifting frame 2, and the first nut 90 is threadedly connected with the first screw rod 9. The first screw rod 9 rotates through the drive of the first motor 5, so that the first lifting frame 2 can move up and down on the swing bracket 1. Since the leg massage mechanism A1 and the foot massage mechanism A2 are both installed on the first lifting frame 2, the leg massage head 3 and the distance between the leg massage head 3 and the massage chair surface can be adjusted as a whole (such as Fig. 9 With Fig.10 ), thereby meeting the needs of users with different leg and foot lengths.

[0035] The distance from the sole to the center of the calf is different for different people, so it is necessary to adjust the distance between the leg massage mechanism A1 and the foot massage mechanism A2. For this purpose, the utility model installs the leg massage mechanism A1 on the second lifting frame 8, and the second lifting frame 8 is arranged on the first lifting frame 2 so as to be movable up and down. The second nut 70 is installed on the second lifting frame 8, and the second screw 7 and the second motor 6 driving the second screw 7 to rotate are installed on the first lifting frame 2. The second screw 7 is threadedly connected with the second nut 70. The second screw 7 rotates through the drive of the second motor 6, so that the second lifting frame 8 can move up and down on the first lifting frame 2. Since the leg massage mechanism A1 is installed on the second lifting frame 8, the leg massage mechanism A1 can be moved away from or close to the foot massage mechanism A2 (such as Fig.10 and Fig.11 ), thereby meeting different user needs in the leg center.

[0036] like Figure 7As shown, the first lifting frame 2 of the utility model includes a side stand 21 and a base 22 (the base 22 is used to install the foot massage mechanism A2), a first guide rod 23 is installed on the side stand 21, and a first guide groove is provided on the swing bracket 1, and the first guide rod 23 is movably arranged in the first guide groove. The first guide rod 23 on the first lifting frame 2 moves up and down in the first guide groove of the swing bracket 1, so that the lifting and lowering of the first lifting frame 2 can be guided.

[0037] like Figure 8 As shown, a second guide groove 24 is installed on the side stand 21, the second lifting frame 8 is installed on the lifting seat 80, and a second guide rod 81 is installed on the lifting seat 80, and the second guide rod 81 is movably arranged in the second guide groove 24. The second guide rod 81 on the lifting seat 80 moves up and down in the second guide groove 24 on the side stand 21, so that the second lifting frame 8 and the lifting seat 80 can be guided.

Claims

1. A massage chair, comprising a chair frame (13) and two leg massage devices (A) for accommodating left and right legs, the two leg massage devices (A) being independently arranged, and the two leg massage devices (A) being mounted on the chair frame (13) so as to be able to swing up and down, characterized in that: The chair frame (13) is provided with a leg-swinging electric push rod (B), which comprises a dual-output motor (B0), a first push rod (B1) and a second push rod (B2); the first output end of the dual-output motor (B0) is transmission-connected to the first push rod (B1), and the first push rod (B1) drives a leg massage device (A) to swing; the second output end of the dual-output motor (B0) is transmission-connected to the second push rod (B2), and the second push rod (B1) drives a leg massage device (A) to swing. 2) driving another leg massage device (A) to swing; a leg-swinging electric push rod (B) can drive the two leg massage devices (A) to swing up and down alternately; the chair frame (13) is provided with a lifting support (14) that can move up and down, the lifting support (14) is located behind the leg massage device (A), the leg-swinging electric push rod (B) is hinged on the lifting support (14), and the chair frame (13) is installed with a lifting power source, and the lifting power source can drive the lifting support (14) to move up and down.

2. A massage chair according to claim 1, characterized in that: The lifting support (14) is hinged on the chair frame (13) so as to be able to swing up and down. The lifting power source is a lifting electric push rod (C). The lifting electric push rod (C) is hinged on the chair frame (13). The lifting electric push rod (C) includes a third push rod (C3). The third push rod (C3) is hinged to the lifting support (14).

3. The massage chair according to claim 1, characterized in that: The first push rod (B1) is hinged to the first swing arm (16), one end of the first swing arm (16) is hinged to the chair frame (13), and the other end of the first swing arm (16) is equipped with a first action wheel (17), and the first action wheel (17) can act on the back of a leg massage device (A) and swing the leg massage device (A) upward; the second push rod (B2) is hinged to the second swing arm, one end of the second swing arm is hinged to the chair frame (13), and the other end of the second swing arm is equipped with a second action wheel, and the second action wheel can act on the back of another leg massage device (A) and swing the leg massage device (A) upward.

4. The massage chair according to claim 1, characterized in that: The first output end of the dual-output motor (B0) is provided with a first worm (B8), the first worm (B8) is meshed with a first worm wheel (B5), the first worm wheel (B5) is connected to a first screw (B6), a first nut (B7) is threadedly connected to the first screw (B6), the first nut (B7) is axially movably arranged in a guide tube (B3), and the first nut (B7) is connected to a first push rod (B1); the second output end of the dual-output motor (B0) is provided with a second worm, the second worm is meshed with a second worm wheel, the second worm wheel is connected to a second screw, a second nut is threadedly connected to the second screw, the second nut is axially movably arranged in the guide tube, and the second nut is connected to a second push rod (B2).

5. A massage chair according to claim 1, 2, 3 or 4, characterized in that: The leg massage device (A) comprises a leg massage mechanism (A1) and a foot massage mechanism (A2).

6. A massage chair according to claim 5, characterized in that: The leg massage mechanism (A1) and the foot massage mechanism (A2) are mounted on a swing bracket (1); a connecting shaft (15) is mounted on the chair frame (13); the swing brackets (1) of the two leg massage devices (A) are rotatably connected to the connecting shaft (15); the leg massage mechanism (A1) comprises a leg massage head (3) and a leg massage motor (30); the foot massage mechanism (A2) comprises a foot massage head (4) and a foot massage motor (40); the leg massage mechanism (A1) and the foot massage mechanism (A2) are both mounted on a first lifting frame (2); the first lifting frame (2) is movably mounted on the swing bracket (1); a first nut (90) is mounted on the swing bracket (1); a first screw rod (9) and a first motor (5) for driving the first screw rod (9) to rotate are mounted on the first lifting frame (2); the first nut (90) is threadedly connected to the first screw rod (9).

7. A massage chair according to claim 6, characterized in that: The leg massage mechanism (A1) is mounted on a second lifting frame (8), the second lifting frame (8) is mounted on the first lifting frame (2) so as to be movable up and down, a second nut (70) is mounted on the second lifting frame (8), a second screw rod (7) and a second motor (6) for driving the second screw rod (7) to rotate are mounted on the first lifting frame (2), and the second screw rod (7) is threadedly connected to the second nut (70).

8. The massage chair according to claim 7, characterized in that: The first lifting frame (2) comprises a side stand (21) and a base (22); a first guide rod (23) is mounted on the side stand (21); a first guide groove is provided on the swing bracket (1); and the first guide rod (23) is movably disposed in the first guide groove.

9. The massage chair according to claim 8, characterized in that: A second guide groove (24) is installed on the side stand (21), the second lifting frame (8) is installed on the lifting seat (80), a second guide rod (81) is installed on the lifting seat (80), and the second guide rod (81) is movably arranged in the second guide groove (24).

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