Backrest massage device and massage chair

Abstract

The utility model provides a back massage device and massage chair, the back massage device includes backplate, can move up and down on the backplate massage mechanism, be provided with sensor on the massage mechanism, and be provided with first response piece respectively on the upper and lower sides of rack, to make massage mechanism can move and massage the most upper end and the most lower end of rack realize full back mode, and be provided with a plurality of second response piece on the tooth disc, it with sensor response and thus discern in the rotation circle number of gear, utilize the circle number of gear accurate positioning middle position of whole stroke, and then ensure the lower position of upper back mode and the upper position of lower back mode, promote the experience of customer.

Description

Technical Field

[0001] This utility model relates to the field of massage device technology, specifically to a backrest massage device and a massage chair. Background Technology

[0002] Back massage devices typically include movable massage heads to massage different areas of the back. They generally have full-back, upper-back, and lower-back modes. In full-back mode, the massage heads move back and forth between the top and bottom of their travel range. In upper-back and lower-back modes, the massage heads move back and forth between the top and bottom of their travel range, respectively, up to the middle of the range. However, for the top and bottom massage heads, they only need to reach their upper and lower limits, respectively. The middle position is currently usually determined by half the total travel time of the massage head at the top and bottom. However, because different people and the pressure applied to the massage heads on their backs vary, the movement speed of the mechanism can be affected to varying degrees, causing the product to not reach the actual middle position. This results in a poor user experience in upper-back and lower-back modes. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a backrest massage device and a massage chair to solve the above problems.

[0004] The present invention adopts the following solution:

[0005] This application provides a backrest massage device, including a back panel and a massage mechanism that can move up and down on the back panel. Two racks are provided on the back panel. The massage mechanism includes a drive unit disposed within a housing and two gear sets transmittedly connected to the drive unit. Each gear set is transmittedly connected to one of the racks and synchronously drives a massage head to rotate. A sensor is provided on the housing. First sensors capable of sensing the sensor are respectively provided on the upper and lower sides of the racks. Multiple second sensors capable of sensing the sensor are evenly distributed on the gear disk of one gear in each gear set.

[0006] Furthermore, four second sensing elements are evenly distributed on the gear disk.

[0007] Furthermore, the sensor is a Hall sensor; the first sensing element is a first magnet; and the second sensing element is a second magnet.

[0008] Furthermore, the gear set includes a worm gear connected to the drive, a helical gear connected to the worm gear drive, a first gear coaxially connected to the helical gear, a second gear meshing with the first gear, and a third gear coaxially connected to the second gear; the third gear meshes with the rack; and the massage head is connected to the rotating shaft of the second gear.

[0009] Furthermore, the drive is a motor with two output shafts, the output shafts being connected to the worm gear.

[0010] Furthermore, the housing is provided with a sliding groove, and the third gear portion protrudes from the sliding groove.

[0011] Furthermore, a support portion is provided on the back plate; a support strip adapted to the support portion is provided on the center of the bottom surface of the rack.

[0012] This utility model also provides a massage chair, including a main body and a backrest massage device movably connected to the main body.

[0013] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0014] This utility model provides a backrest massage device, which has a sensor installed on the massage mechanism and first sensors installed on the upper and lower sides of the rack, so that the massage mechanism can move and massage at the uppermost and lowermost ends of the rack to achieve a full backrest mode; and multiple second sensors are evenly distributed on the gear plate, which sense the sensor to identify the number of rotations of the gear, and use the number of rotations of the gear to accurately locate the middle position of the entire stroke, thereby ensuring the lower position of the upper backrest mode and the upper position of the lower backrest mode, improving the customer's experience. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a front structural diagram of a backrest massage device according to an embodiment of this utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a backrest massage device according to an embodiment of the present invention;

[0018] Figure 3This is a front view of a backrest massage device without a massage mechanism, according to an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the back panel structure of a backrest massage device according to an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the front of the massage mechanism of a backrest massage device according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the bottom structure of the massage mechanism of a backrest massage device according to an embodiment of the present invention;

[0022] Figure 7 This is a partially exploded structural diagram of the massage mechanism of a backrest massage device according to an embodiment of this utility model;

[0023] Figure 8 This is a schematic diagram of the internal structure of the massage mechanism of a backrest massage device according to an embodiment of the present invention;

[0024] Icons: Backplate 1, Massage Mechanism 2, Rack 3, Motor 4, Worm Gear 5, Helical Gear 6, First Gear 7, Second Gear 8, Third Gear 9, Massage Head 10, Support Part 11, Support Bar 12, Sliding Groove 13, First Magnet 14, Second Magnet 15, Support Sponge 16, Housing 17, Hall Sensor 18. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example

[0027] Combination Figures 1 to 8As shown, this embodiment provides a backrest massage device, including a back panel 1 and a massage mechanism 2 that can move up and down on the back panel 1. The back panel 1 is provided with two racks 3. The massage mechanism 2 includes a drive disposed in a housing 17 and two gear sets that are driven and connected to the drive. Each gear set is driven and connected to one of the racks 3, and synchronously drives a massage head 10 to rotate. A sensor is disposed on the housing 17. The upper and lower sides of the racks 3 are respectively provided with first sensing elements that can sense the sensor. In the gear set, a plurality of second sensing elements that can sense the sensor are evenly distributed on the gear disk of one gear.

[0028] Specifically, in this embodiment, such as Figure 4 As shown, the back plate 1 is disc-shaped and has a groove with a flat bottom surface. The drive is a motor 4 with two output shafts. The two output shafts synchronously drive the two gear sets, thereby driving the massage mechanism 2 to move up and down along the rack 3, and synchronously driving the massage head 10 to rotate.

[0029] In this embodiment, as Figures 5 to 8 As shown, the gear set includes a worm gear 5 connected to the output shaft of the motor 4, a helical gear 6 driven by the worm gear 5, a first gear 7 coaxially connected to the helical gear 6, a second gear 8 meshing with the first gear 7, and a third gear 9 coaxially connected to the second gear 8; the third gear 9 meshes with the rack 3; and the massage head 10 is connected to the rotating shaft of the second gear 8. When the motor 4 rotates forward or backward, it drives the worm gear 5 to rotate, which in turn drives the helical gear 6 to rotate, thereby driving the first gear 7 coaxially connected to the helical gear 6 to rotate; then the first gear 7 drives the second gear 8 to rotate, which in turn drives the third gear 9 coaxially connected to the second gear 8 to rotate synchronously; and the third gear 9 meshes with the rack 3, causing the entire massage mechanism 2 to move up and down along the rack 3; at the same time, the massage head 10 connected to the rotating shaft of the second gear 8 also rotates; thus, the massage head 10 performs a synchronous rotational massage while moving up and down.

[0030] In this embodiment, a support portion 11 is protruding from the bottom surface of the groove of the back plate 1; a support strip 12 adapted to the support portion 11 is protruding from the middle of the bottom surface of the rack 3; a sliding groove 13 is provided on the housing 17, and the support strip 12 makes the rack 3 form a T-shape; the cooperation of the support portion 11 and the support strip 12 secures the upper part of the rack 3 with meshing teeth into the sliding groove 13, preventing the housing 17 from falling off; an opening is provided on the side of the sliding groove 13, and the third gear 9 protrudes into the sliding groove 13 through the opening and meshes with the meshing teeth of the rack 3 for transmission.

[0031] In this embodiment, the sensor is a Hall sensor 18; the first sensing element is a first magnet 14; and the second sensing element is a second magnet 15. Four second magnets 15 are evenly distributed on the gear plate of the second gear 8, which sense the Hall sensor 18 to generate an electrical signal, thereby identifying the number of rotations of the second gear 8. The positions of the first magnets 14 on the two racks 3 are fixed. When the massage mechanism 2 moves between the two first magnets 14, its stroke is fixed, so the number of rotations of the second gear 8 is also fixed. The difference in the number of rotations is not due to different pressures applied to the massage head 10 by different people or even the same person using the product. Therefore, the number of rotations of the second gear 8 can accurately locate the middle position of the entire stroke, allowing the massage mechanism 2 to accurately move to the lower position (i.e., the middle position of the entire stroke) in the upper back mode and to the upper position (i.e., the middle position of the entire stroke) in the lower back mode, greatly improving the user experience in both modes.

[0032] Of course, it should be noted that a supporting sponge 16 is still provided outside the back plate 1, which is existing technology and will not be described in detail here.

[0033] This backrest massage device features a Hall sensor 18 on the massage mechanism 2 and first magnets 14 on the upper and lower sides of the rack 3, allowing the massage mechanism 2 to move and massage at the upper and lower ends of the rack 3 to achieve a full backrest mode. Multiple second magnets 15 are evenly distributed on the rack, sensing the Hall sensor 18 to identify the number of rotations of the second gear 8. The number of rotations of the second gear 8 is used to accurately locate the midpoint of the entire stroke, preventing inconsistent pressure applied to the massage head 10 by different people or even the same person, which could lead to inaccurate positioning of the midpoint. This ensures the lower position in the upper backrest mode and the upper position in the lower backrest mode, enhancing the customer experience.

[0034] This utility model also provides a massage chair, including a main body and a backrest massage device movably connected to the main body. When switching between upper back mode and lower back mode for back massage, the massage head can move more accurately to the midpoint of the stroke, thereby improving the customer's massage experience in both modes.

[0035] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A back massage device comprising a back plate and a massage mechanism capable of moving up and down on the back plate, characterized in that, The back plate is provided with two racks; the massage mechanism includes a drive unit disposed within the housing and two gear sets connected to the drive unit; each gear set is connected to one of the racks and synchronously drives a massage head to rotate; a sensor is provided on the housing; first sensing elements capable of sensing the sensor are respectively provided on the upper and lower sides of the racks; in the gear sets, multiple second sensing elements capable of sensing the sensor are evenly distributed on the gear disk of one gear.

2. The backrest massage device according to claim 1, characterized in that Four second sensing elements are evenly distributed on the gear disk.

3. The backrest massage device according to claim 2, characterized in that The sensor is a Hall sensor; the first sensing element is a first magnet; the second sensing element is a second magnet.

4. The backrest massage device according to any one of claims 1-3, characterized in that, The gear set includes a worm gear connected to the drive, a helical gear connected to the worm gear drive, a first gear coaxially connected to the helical gear, a second gear meshing with the first gear, and a third gear coaxially connected to the second gear; the third gear meshes with the rack. The massage head is connected to the rotating shaft of the second gear.

5. The backrest massage device according to claim 4, characterized in that The drive is a motor with two output shafts, and the output shafts are connected to the worm gear.

6. The backrest massage device according to claim 4, characterized in that The housing is provided with a sliding groove, and the third gear protrudes from the sliding groove.

7. The backrest massage device according to claim 5, characterized in that The back plate is provided with a support portion; the bottom surface of the rack is provided with a support strip that is adapted to the support portion.

8. A massage chair, comprising a main body and a backrest massage device movably connected to the main body as described in any one of claims 1-7.

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