A multi-directional massaging device and lumbar support chair

Abstract

The application provides a multi-directional massage device and a waist-protecting sitting posture chair. The multi-directional massage device comprises a sitting posture chair body and a multi-directional massage assembly. A connecting seat is connected to a second supporting part of the sitting posture chair body. A flexible outer cover is detachably sleeved on the connecting seat and wraps the connecting seat. A massage piece is between the connecting seat and the flexible outer cover. A moving seat is movably connected to the connecting seat and moves along the up-down direction. The massage piece is arranged on one side of the moving seat facing the flexible outer cover. The massage piece is rotatably connected to the moving seat and rotates along the rotation axis of the massage piece. The massage piece adjusts the up-down position along with the movement of the moving seat. The part of the massage piece facing the flexible outer cover is a massage part. The massage part is at different positions of the flexible outer cover along with the rotation of the massage piece. The movement and rotation of the massage piece are realized, so that the multi-directional massage of the waist of a user is facilitated, the massage piece cannot move, and the massage convenience of the multi-directional massage device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of lumbar support chairs, and more particularly to a multi-directional massage device and a lumbar support chair. Background Technology

[0002] With the development of technology, lumbar support chairs have been applied to people's lives. The function of lumbar support chairs is limited to physical support. The main body of the lumbar support chair supports the user's waist and applies support force to the user's waist. The user's waist can lean against the main body of the lumbar support chair. In the existing technology, the existing lumbar support chairs include a main body and a massage component. The massage component is connected to the main body. However, the massage component is in a fixed state relative to the main body and cannot move. It can only massage one position of the user's waist, resulting in poor massage convenience of the existing lumbar support chairs. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-directional massage device and a lumbar support chair. The chair body is used as a seat, tabletop, desktop, or sofa placed externally. The chair body includes a first support part and a second support part, with the second support part integrally connected to the first support part. A seat cushion is connected to the first support part, and the seat cushion is used to flexibly contact the user's buttocks. The multi-directional massage component includes a connecting seat, a flexible cover, a movable seat, and massage elements. The connecting seat is connected to the second support part and is located on the side of the second support part facing the user's waist. The flexible cover is detachably fitted onto the connecting seat and wraps around the connecting seat. The massage elements are located between the connecting seat and the user's waist. Between the flexible outer sleeves; the movable seat is movably connected to the connecting seat and moves along the vertical direction; the massage element is disposed in the movable seat on the side facing the flexible outer sleeve, the massage element is rotatably connected to the movable seat and rotates along the rotation axis of the massage element, and the vertical position of the massage element is adjusted as the movable seat moves; the part of the massage element facing the flexible outer sleeve serves as the massage section, and this massage section is located in different positions of the flexible outer sleeve as the massage element rotates, so as to realize the movement and rotation of the massage element, thereby facilitating multi-directional massage of the user's waist, avoiding the inability of the massage element to move, and improving the massage convenience of the multi-directional massage device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional massage device applied to a lumbar support chair, the multi-directional massage device comprising: A seating chair body is used as a seat, tabletop, desktop, or sofa placed externally; the seating chair body includes a first support part and a second support part, the second support part being integrally connected to the first support part; the first support part is connected to a seat cushion, the seat cushion being used to flexibly contact the user's buttocks; A multi-directional massage component includes a connecting base, a flexible cover, a movable base, and a massage element; the connecting base is connected to a second support portion and is located on the side of the second support portion facing the user's waist; the flexible cover is detachably fitted onto the connecting base and wraps around the connecting base; the massage element is located between the connecting base and the flexible cover. The movable seat is movably connected to the connecting seat and moves along the vertical direction; the massage member is disposed in the movable seat on the side facing the flexible outer sleeve, the massage member is rotatably connected to the movable seat and rotates along the rotation axis of the massage member, and the vertical position of the massage member is adjusted as the movable seat moves; the part of the massage member facing the flexible outer sleeve serves as the massage section, and the massage section is located at different positions on the flexible outer sleeve as the massage member rotates.

[0005] Optionally, the connecting seat is provided with a receiving cavity and a front first opening, the receiving cavity communicating with the front first opening and used to receive the movable seat and the massage element; When the flexible cover is fitted onto the connecting seat, the flexible cover covers the first opening on the front side of the connecting seat and exposes the connection point in the connecting seat that connects to the second support portion; at the same time, the portion of the flexible cover facing the user's waist is located on the front side of the massage member and can be contacted or protruded by the massage portion of the massage member.

[0006] Optionally, the inner wall of the connecting seat is provided with a guide rail, which is installed on the inner wall of the connecting seat and arranged in the vertical direction; The movable seat is movably connected to the guide rail and moves along the length of the guide rail; the guide rail is stationary relative to the connecting seat; the movable seat is dynamically movable relative to the guide rail.

[0007] Optionally, the sidewall of the guide rail is provided with a rack portion; The mobile base includes a housing, a power motor, and a gear transmission module; The housing is movably housed in the receiving cavity, and both the power motor and the gear transmission module are connected to the housing; the output end of the power motor is connected to the gear transmission module and drives the gear transmission module to work; The gear transmission module is provided with a first gear section, which rotates as the gear transmission module operates. The first gear section is arranged relative to the guide rail and meshes with the rack section, acting on different positions of the rack section. The movable seat adjusts its position relative to the guide rail as the first gear section rotates.

[0008] Optionally, the housing includes a front housing portion and a rear housing portion, the front housing portion being detachably connected to the rear housing portion, and the massage member being located on the front side of the front housing portion; The rear housing portion is disposed on the rear side of the front housing portion, and the rear housing portion is provided with a second opening. A portion of the first gear is exposed to the second opening, and a portion of the first gear is located on one side of the second opening and engages with the rack portion of the guide rail.

[0009] Optionally, the rear housing is provided with a receiving groove, which is arranged along the vertical direction and is in a vertically continuous state; the guide rail is fixedly connected to the inner wall of the receiving cavity and passes through the receiving groove; The rear housing portion is connected to a limiting plate, which is disposed on the rear side of the rear housing portion and fixedly connected to the rear housing portion; the limiting plate is located between the guide rail and the inner wall of the receiving cavity, and is combined with the guide rail of the sleeve portion of the rear housing portion.

[0010] Optionally, the inner wall of the receiving cavity is provided with a first protrusion and a second protrusion, and the first protrusion and the second protrusion are arranged in the vertical direction. The upper end of the guide rail is connected to the first boss by screws; the lower end of the guide rail is connected to the second boss by screws. When the guide rail connects the first boss and the second boss, there is a gap between the guide rail and the inner wall of the receiving cavity, and the limiting plate moves within this gap as the moving seat moves.

[0011] Optionally, the guide rail has an elongated hole, which is arranged relative to the first boss or the second boss. The elongated hole is arranged in the vertical direction and is used for screws to pass through. The first boss or the second boss has a threaded hole, which is connected to the elongated hole in the front-back direction and is used for screw connection.

[0012] Optionally, there are two guide rails, which are arranged side by side; The gear transmission module has multiple components, which are arranged on both sides of the power motor and act on the output end of the power motor; the two first gear components act on the corresponding guide rails respectively.

[0013] Optionally, the gear transmission module further includes a second gear section, which is located in front of the first gear section and indirectly connected to the first gear section; the second gear section rotates as the first gear section rotates. The second gear is connected to a connecting shaft, which is arranged relative to the axis of the second gear and positioned to be connected to the second gear. The connecting shaft rotates with the rotation of the second gear. The connecting shaft is arranged in the front-rear direction and passes through the front housing. The connecting end of the connecting shaft is located on the front side of the front housing and is connected to the massage member. The massage member rotates with the rotation of the connecting shaft and drives the massage unit to rotate, so that the massage unit acts on different positions of the user's waist.

[0014] Optionally, the diameter of the second gear portion is larger than the diameter of the first gear portion; the second gear portion is connected to the first gear portion through the connecting module, which is a portion of the gear portion in the gear transmission module.

[0015] Optionally, the second gear portion is provided with a first positioning hole, which is arranged relative to the axis of the second gear portion; The connecting shaft is provided with a first positioning part, a second positioning part, and a first connecting part; the first positioning part, the second positioning part, and the first connecting part are distributed at different positions on the connecting shaft; the first positioning part is positioned and connected to the first positioning hole; the second positioning part is positioned and connected to the positioning groove of the massage component; the first connecting part is connected to the second connecting part of the massage component and has a detachable connection structure with the second connecting part of the massage component.

[0016] Optionally, the front housing portion is provided with a through hole for the connecting shaft to pass through; The front housing portion is provided with a first reinforcing rib, which protrudes from the front surface of the front housing portion and is distributed on the outer periphery of the through hole; the first reinforcing rib is a concentric circle structure, a square structure or a strip structure.

[0017] Optionally, the output end of the power motor is provided with a screw section; The gear transmission module includes a drive gear section, which connects the first gear section and the second gear section and drives the first gear section and the second gear section to rotate synchronously; the drive gear section is connected to the screw section of the power motor; When the two gear transmission modules are driven by the same power motor, the screw portion of the power motor is connected to the drive gear portion of each gear transmission module, and the two drive gear portions are arranged on both sides of the screw portion of the power motor.

[0018] Optionally, the massage unit has multiple sub-massage units, which are located at different positions on the surface of the massage unit facing the flexible cover, and the multiple sub-massage units act on different positions of the user's waist; The plurality of sub-massage parts include a first massage ball and a second massage ball, the first massage ball and the second massage ball being distributed at different positions on the massage component and having a positional difference along the front-back direction; the massage component is an integral injection molded part, the massage component is provided with a second connecting part, the second connecting part being located at the center position of the massage component, and the peripheral sidewall of the second connecting part is connected to a plurality of sub-massage parts; The second connecting part is detachably connected to the connecting shaft and forms a positioning connection structure with the second positioning part of the connecting shaft.

[0019] Optionally, the second connecting part is connected to the first connecting part of the connecting shaft by screws; Both the first massage ball and the second massage ball have thin-shell structures and are connected to each other. The massage component is provided with a second reinforcing rib, which is located on the side of the massage component facing away from the flexible outer shell and is located in the groove of the massage component. The second reinforcing rib passes through the first massage ball, the second connecting part and the second massage ball in sequence to reinforce the first massage ball, the second connecting part and the second massage ball as a whole. At the same time, the second connecting part connects the first massage ball and the second massage ball.

[0020] Optionally, the second reinforcing rib includes a first reinforcing portion and a second reinforcing portion; the first reinforcing portion is arranged along a circumferential direction and passes sequentially through the first massage ball, the second connecting portion and the second massage ball; the second connecting portion is located in the internal space of the first reinforcing portion; the second reinforcing portion extends from the peripheral sidewall of the second connecting portion to the inner sidewall of the first reinforcing portion, and there are multiple second reinforcing portions, which extend in different directions along the axis of the second connecting portion and are arranged relative to the second connecting portion; Alternatively, the second reinforcing rib includes a first reinforcing portion and a third reinforcing portion; the first reinforcing portion is arranged along a circumferential direction and passes sequentially through the first massage ball, the second connecting portion, and the second massage ball; the second connecting portion is located in the internal space of the first reinforcing portion; the third reinforcing portion has a cross-shaped structure, is arranged relative to the first massage ball or the second massage ball, and is connected to different positions of the first reinforcing portion and the second connecting portion.

[0021] To achieve the above objectives, this utility model provides the following technical solution: a lumbar support chair, including the aforementioned multi-directional massage device.

[0022] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a multi-directional massage device and a lumbar support chair. The chair body is used as a seat, tabletop, desktop, or sofa placed externally. The chair body includes a first support part and a second support part, with the second support part integrally connected to the first support part. A seat cushion is connected to the first support part, and the seat cushion is used to flexibly contact the user's buttocks. The multi-directional massage component includes a connecting seat, a flexible cover, a movable seat, and massage elements. The connecting seat is connected to the second support part and is located on the side of the second support part facing the user's waist. The flexible cover is detachably fitted onto the connecting seat and wraps around the connecting seat. The massage elements are located between the connecting seat and the flexible cover. Between the outer sleeves; the movable seat is movably connected to the connecting seat and moves along the vertical direction; the massage element is disposed in the movable seat on the side facing the flexible outer sleeve, the massage element is rotatably connected to the movable seat and rotates along the rotation axis of the massage element, and the vertical position of the massage element is adjusted as the movable seat moves; the part of the massage element facing the flexible outer sleeve serves as the massage section, and this massage section is located in different positions on the flexible outer sleeve as the massage element rotates, so as to realize the movement and rotation of the massage element, thereby facilitating multi-directional massage of the user's waist, avoiding the inability of the massage element to move, and improving the massage convenience of the multi-directional massage device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0025] Figure 1 A schematic diagram of a multidirectional massage device according to an embodiment of this application is shown.

[0026] Figure 2 An internal structural diagram of the multi-directional massage component of a multi-directional massage device according to an embodiment of this application is shown.

[0027] Figure 3 An internal structural diagram of a multi-directional massage device according to an embodiment of this application is shown after the multi-directional massage component has been moved.

[0028] Figure 4 An exploded view of the multi-directional massage component of a multi-directional massage device according to an embodiment of this application is shown.

[0029] Figure 5 A schematic diagram of the movable seat of a multi-directional massage device according to an embodiment of this application is shown.

[0030] Figure 6 A schematic diagram showing the connection between the movable seat and the massage element of a multi-directional massage device according to an embodiment of this application is shown.

[0031] Figure 7 A schematic diagram of the internal structure of the movable seat of a multi-directional massage device according to an embodiment of this application is shown.

[0032] Figure 8 A schematic diagram of a massage element of a multi-directional massage device according to an embodiment of this application is shown.

[0033] Figure 9 A rear view of the movable seat of a multi-directional massage device according to an embodiment of this application is shown.

[0034] Figure 10 A rear view of the movable seat of the multi-directional massage device according to a second embodiment of this application is shown.

[0035] Figure label: 100. Multi-directional massage device; 10. Main body of the chair; 11. First support part; 111. Seat cushion; 12. Second support part; 20. Multi-directional massage component; 21. Connecting seat; 21a. Receiving cavity; 21b. First front opening; 21c. Gap; 211. Guide rail; 211a. Elongated hole; 2111. Rack portion; 212. First boss portion; 212a. Threaded hole; 213. Second boss portion; 22. Flexible outer shell; 23. Movable seat; 231. Housing; 2311. Front housing portion; 2311a. Through hole; 23111. First reinforcing rib; 2312. Rear housing portion; 2312a. Second opening; 2312b. Receiving groove; 23121. Limiting plate; 232. Power motor; 2321. Screw portion; 233, Gear transmission module; 2331, First gear section; 2332, Second gear section; 2332a, First positioning hole; 2333, Connecting shaft; 23331, First positioning part; 23332, Second positioning part; 23333, First connecting part; 2334, Drive gear section; 24, Massage component; 24a, Positioning groove; 241, Massage part; 2411, Sub-massage part; 24111, First massage ball; 24112, Second massage ball; 242, Second connecting part; 243, Second reinforcing rib; 2431, First reinforcing part; 2432, Second reinforcing part; 2433, Third reinforcing part. Detailed Implementation

[0036] The technical solutions of the embodiments of this application 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 application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] Please refer to the attached document. Figures 1-10 This application provides a multi-directional massage device 100, which is applied to a lumbar support chair and is used to perform multi-directional massage on the user's waist.

[0038] Please refer to the attached document. Figures 1-10 In this embodiment, the multi-directional massage device 100 includes a seating chair body 10 and a multi-directional massage component 20. The seating chair body 10 is used as a seat, tabletop, desktop, or sofa placed externally. The seating chair body 10 includes a first support portion 11 and a second support portion 12, with the second support portion 12 integrally connected to the first support portion 11. A seat cushion 111 is connected to the first support portion 11, and the seat cushion 111 is used for flexible contact with the user's buttocks. The multi-directional massage component 20 includes a connecting seat 21, a flexible cover 22, a movable seat 23, and a massage element 24. The connecting seat 21 is connected to the second support portion 12 and is located on the side of the second support portion 12 facing the user's waist. The flexible cover 22 is detachably fitted onto the connecting seat 21 and wraps around the connecting seat 21. The massage element 24 is located at... Between the connecting seat 21 and the flexible outer sleeve 22; the movable seat 23 is movably connected to the connecting seat 21 and moves along the vertical direction; the massage member 24 is disposed in the movable seat 23 on the side facing the flexible outer sleeve 22, the massage member 24 is rotatably connected to the movable seat 23 and rotates along the rotation axis of the massage member 24, and the vertical position of the massage member 24 is adjusted as the movable seat 23 moves; the part of the massage member 24 facing the flexible outer sleeve 22 serves as the massage part 241, which is located in different positions of the flexible outer sleeve 22 as the massage member 24 rotates, so as to realize the movement and rotation of the massage member 24, thereby facilitating multi-directional massage of the user's waist, avoiding the inability of the massage member 24 to move, and improving the massage convenience of the multi-directional massage device 100.

[0039] Please refer to the attached document. Figures 1-10In this embodiment, the main body 10 of the seating chair is used to place the seat, tabletop, desktop, or sofa of an external chair, so that the main body 10 can stably place the seat, tabletop, desktop, or sofa of an external chair. The main body 10 of the seating chair includes a first support part 11 and a second support part 12. The second support part 12 is integrally connected to the first support part 11, which improves the connection strength between the second support part 12 and the first support part 11 and ensures the connection stability between the second support part 12 and the first support part 11. The first support part 11 is connected to a seat cushion 111, which is used to flexibly contact the user's buttocks, so that the user's buttocks can flexibly contact the first support part 11 through the seat cushion 111, thereby improving the comfort of the user's buttocks. The second support part 12 is used to support the user's waist. The second support part 12 extends upward in a fluid shape so that the second support part 12 and the first support part 11 form an L-shape, and the contours of the second support part 12 and the first support part 11 are adapted to the contours of the user's buttocks and waist when in a sitting position.

[0040] The multi-directional massage component 20 includes a connecting seat 21, a flexible outer sleeve 22, a movable seat 23, and a massage element 24. The connecting seat 21 is connected to the second support portion 12 and is located on the side of the second support portion 12 facing the user's waist, so that the multi-directional massage component 20 can be fixed to the side of the second support portion 12 facing the user's waist through the connecting seat 21, thereby facilitating the multi-directional massage component 20 to face the user's waist. The flexible outer sleeve 22 is disposed on the front side of the connecting seat 21 and is detachably sleeved on the connecting seat 21, so that the flexible outer sleeve 22 can be connected to or detached from the connecting seat 21. The flexible outer sleeve 22 wraps around the connecting seat 21 so that the user's waist can make flexible contact with the multi-directional massage component 20.

[0041] The massage element 24 is located between the connecting seat 21 and the flexible outer sleeve 22; the movable seat 23 is movably connected to the connecting seat 21 and moves in the vertical direction to adjust the height position of the movable seat 23 relative to the connecting seat 21; the massage element 24 is disposed in the movable seat 23 on the side facing the flexible outer sleeve 22, and the massage element 24 is rotatably connected to the movable seat 23 and rotates along the rotation axis of the massage element 24 to adjust the angle position of the massage element 24 relative to the movable seat 23. The massage element 24 adjusts its vertical position as the movable seat 23 moves; the part of the massage element 24 facing the flexible outer sleeve 22 serves as the massage section 241, which is positioned at different locations in the flexible outer sleeve 22 as the massage element 24 rotates, thereby realizing the movement and rotation of the massage element 24. This facilitates multi-directional massage of the user's waist, avoids the massage element 24 being unable to move, and improves the massage convenience of the multi-directional massage device 100.

[0042] Please refer to the attached document. Figures 1-4In this embodiment of the application, the connecting seat 21 is provided with a receiving cavity 21a and a front first opening 21b. The receiving cavity 21a serves as the internal space of the connecting seat 21 and is connected to the front first opening 21b. It is used to receive the movable seat 23 and the massage member 24. This allows the movable seat 23 and the massage member 24 to enter the receiving cavity 21a from front to back through the front first opening 21b, thereby facilitating the storage of the movable seat 23 and the massage member 24 inside the connecting seat 21.

[0043] When the flexible cover 22 is fitted onto the connecting seat 21, the flexible cover 22 covers the first opening 21b on the front side of the connecting seat 21 and is exposed at the connection point in the connecting seat 21 that connects to the second support part 12, so that the flexible cover 22 and the connecting seat 21 can wrap the moving seat 23 and the massage member 24; at the same time, the part of the flexible cover 22 facing the user's waist is located on the front side of the massage member 24 and can be contacted or protruded by the massage part 241 of the massage member 24, so that the massage member 24 can apply pressure to the user's waist through the flexible cover 22, thereby facilitating the massage member 24 to make intermittent contact with the user's waist, so as to achieve flexible contact between the user's waist and the massage member 24.

[0044] In this embodiment, the inner wall of the connecting seat 21 is provided with a guide rail 211, which is installed on the inner wall of the connecting seat 21 and arranged in the vertical direction; the movable seat 23 is movably connected to the guide rail 211 and moves along the length of the guide rail 211 to adjust the height position of the movable seat 23 relative to the guide rail 211; the guide rail 211 is stationary relative to the connecting seat 21; the movable seat 23 is dynamically movable relative to the guide rail 211 so that the movable seat 23 can move in height relative to the connecting seat 21 through the guide rail 211.

[0045] Please refer to the attached document. Figures 1-4 In this embodiment, the side wall of the guide rail 211 is provided with a rack portion 2111; the movable seat 23 includes a housing 231, a power motor 232, and a gear transmission module 233; the housing 231 is movably accommodated in the receiving cavity 21a to facilitate adjustment of the position of the housing 231 relative to the receiving cavity 21a; the power motor 232 and the gear transmission module 233 are both connected to the housing 231; the output end of the power motor 232 is connected to the gear transmission module 233 and drives the gear transmission module 233 to work; so as to realize the automated operation of the gear transmission module 233.

[0046] The gear transmission module 233 is provided with a first gear part 2331, which rotates as the gear transmission module 233 operates. The first gear part 2331 is arranged relative to the guide rail 211 and meshes with the rack part 2111, acting on different positions of the rack part 2111. The movable seat 23 adjusts its position relative to the guide rail 211 as the first gear part 2331 rotates, so that the movable seat 23 can move up and down relative to the connecting seat 21 through the cooperation of the first gear part 2331 and the guide rail 211. This allows the massage member 24 to adjust its position up and down as the movable seat 23 moves up and down, thereby enabling the massage member 24 to massage the user's waist in the up and down direction.

[0047] Please refer to the attached document. Figures 1-5 In this embodiment of the application, the housing 231 includes a front housing portion 2311 and a rear housing portion 2312. The front housing portion 2311 is detachably connected to the rear housing portion 2312 so that the front housing portion 2311 can be connected to or detached from the rear housing portion 2312. Specifically, the front housing portion 2311 is detachably connected to the rear housing portion 2312 by means of screws. The massage component 24 is located on the front side of the front housing portion 2311; the rear housing portion 2312 is located on the rear side of the front housing portion 2311. The rear housing portion 2312 has a second opening 2312a, a portion of the first gear portion 2331 is exposed in the second opening 2312a, and a portion of the first gear portion 2331 is located on one side of the second opening 2312a, so that the first gear portion 2331 can be arranged opposite to the rack portion 2111 of the guide rail 211 through the space of the second opening 2312a. A portion of the first gear portion 2331 meshes with the rack portion 2111 of the guide rail 211, so that the first gear portion 2331 can adjust its height position relative to the guide rail 211 during rotation.

[0048] Please refer to the attached document. Figures 1-5 In this embodiment, the rear housing portion 2312 is provided with a receiving groove 2312b, which is arranged along the vertical direction and is in a vertically continuous state; the guide rail 211 is fixedly connected to the inner wall of the receiving cavity 21a and passes through the receiving groove 2312b, ensuring that the guide rail 211 is arranged along the vertical direction; the rear housing portion 2312 is connected to a limiting plate 23121, which is disposed on the rear side of the rear housing portion 2312. It is fixedly connected to the rear housing 2312; the limiting plate 23121 is located between the guide rail 211 and the inner wall of the receiving cavity 21a, and is combined with the guide rail 211 of the rear housing 2312 so that the limiting plate 23121 and the rear housing 2312 restrict the guide rail 211 to move in the front and rear direction, ensuring that the guide rail 211 and the first gear 2331 are arranged opposite to each other, and avoiding the guide rail 211 and the first gear 2331 from being offset.

[0049] Please refer to the attached document. Figures 1-4 In this embodiment, the inner wall of the receiving cavity 21a is provided with a first protrusion 212 and a second protrusion 213 protruding forward, and the first protrusion 212 and the second protrusion 213 are arranged in the vertical direction; the upper end of the guide rail 211 is connected to the first protrusion 212 by screws; the lower end of the guide rail 211 is connected to the second protrusion 213 by screws; so that the upper and lower ends of the guide rail 211 can be fixed to the connecting seat 21, ensuring the connection stability of the guide rail 211 relative to the connecting seat 21.

[0050] When the guide rail 211 connects the first boss 212 and the second boss 213, there is a gap 21c between the guide rail 211 and the inner wall of the receiving cavity 21a. The limiting plate 23121 moves within this gap 21c as the moving seat 23 moves. The gap 21c ensures the movement space of the limiting plate 23121 relative to the connecting seat 21, and avoids the limiting plate 23121 from contacting the connecting seat 21 and affecting the movement effect of the moving seat 23.

[0051] Please refer to the attached document. Figures 1-4 In this embodiment, the guide rail 211 is provided with an elongated hole 211a, which is arranged relative to the first boss portion 212 or the second boss portion 213. The elongated hole 211a is arranged in the vertical direction and is used for screws to pass through. The first boss portion 212 or the second boss portion 213 is provided with a threaded hole 212a, which is connected to the elongated hole 211a in the front-back direction and is used for screw connection, so as to realize the fixed connection between the guide rail 211 and the first boss portion 212 or the second boss portion 213. By arranging the elongated hole 211a, the connection between the guide rail 211 and the first boss portion 212 or the second boss portion 213 is increased. At the same time, it is convenient to adjust the deviation between the guide rail 211 and the first gear portion 2331.

[0052] Please refer to the attached document. Figures 1-4 In this embodiment, there are two guide rails 211 arranged side by side; there are multiple gear transmission modules 233, which are arranged on both sides of the power motor 232 and act on the output end of the power motor 232, so that one power motor 232 can drive multiple gear transmission modules 233 to work, saving costs. Two first gears 2331 act on their respective guide rails 211, so that the two massage members 24 can simultaneously perform lifting and lowering massage on the user's waist. Specifically, there are two gear transmission modules 233, arranged on the left and right sides of the power motor 232.

[0053] Please refer to the attached document. Figures 1-7In this embodiment, the gear transmission module 233 further includes a second gear section 2332, which is located on the front side of the first gear section 2331 and indirectly connected to it, so that the second gear section 2332 is offset from the first gear section 2331. The second gear section 2332 rotates with the rotation of the first gear section 2331 to adjust its rotational position. The second gear section 2332 is connected to a connecting shaft 2333, which is arranged relative to the axis of the second gear section 2332 and positioned to ensure the positional accuracy of the connecting shaft 2333 relative to the second gear section 2332. The connecting shaft 2333 rotates with the rotation of the second gear section 2332. The connecting shaft 2333 is arranged along the front-rear direction and passes through the front housing section 2311.

[0054] The connecting end of the connecting shaft 2333 is located on the front side of the front housing 2311 and is connected to the massage member 24. The massage member 24 rotates with the rotation of the connecting shaft 2333, driving the massage part 241 to rotate, so that the massage part 241 acts on different positions of the user's waist to achieve a rotating massage of the user's waist. When the power motor 232 is started, the first gear part 2331 and the second gear part 2332 rotate simultaneously. The massage member 24 moves up and down and rotates through the rotation of the first gear part 2331 and the second gear part 2332, thereby facilitating multi-directional massage of the user's waist, avoiding the inability of the massage member 24 to move, and improving the massage convenience of the multi-directional massage device 100.

[0055] Please refer to the attached document. Figures 1-7 In this embodiment, the diameter of the second gear part 2332 is larger than the diameter of the first gear part 2331, ensuring that the number of teeth of the second gear part 2332 is consistent with the number of teeth of the rack part 2111. The second gear part 2332 is connected to the first gear part 2331 through a connecting module, which is a part of the gear part in the gear transmission module 233, so that the first gear part 2331 can drive the second gear part 2332 to rotate through the connecting module, thereby facilitating the first gear part 2331 to move up and down relative to the rack part 2111 while driving the massage member 24 to rotate through the second gear part 2332.

[0056] Please refer to the attached document. Figures 1-7In this embodiment, the second gear portion 2332 is provided with a first positioning hole 2332a, which is arranged relative to the axis of the second gear portion 2332; the connecting shaft 2333 is provided with a first positioning portion 23331, a second positioning portion 23332, and a first connecting portion 23333; the first positioning portion 23331, the second positioning portion 23332, and the first connecting portion 23333 are distributed at different positions of the connecting shaft 2333; the first positioning portion 23331 is positioned and connected to the first positioning hole 2332a, so that the connecting shaft 2333 can be positioned and connected to the second gear portion 2332 through the cooperation of the first positioning portion 23331 and the first positioning hole 2332a, thus ensuring the positional accuracy of the connecting shaft 2333 relative to the second gear portion 2332.

[0057] The second positioning part 23332 is positioned and connected to the positioning groove 24a of the massage component 24, so that the massage component 24 can be positioned and connected to the connecting shaft 2333 through the cooperation of the second positioning part 23332 and the positioning groove 24a, ensuring the positional accuracy of the massage component 24 relative to the connecting shaft 2333. The first connecting part 23333 is connected to the second connecting part 242 of the massage component 24, and has a detachable connection structure with the second connecting part 242 of the massage component 24, so that the massage component 24 can be connected to or disconnected from the connecting shaft 2333, improving the ease of installation and removal of the massage component 24 and facilitating the replacement of different massage components 24.

[0058] Please refer to the attached document. Figures 1-7 In this embodiment, the front housing portion 2311 is provided with a through hole 2311a, which is used for the connecting shaft 2333 to pass through, so that part of the connecting shaft 2333 is exposed on the outside of the front housing portion 2311, thereby facilitating the massage member 24 to be exposed on the front side of the front housing portion 2311 by connecting part of the connecting shaft 2333. The front housing portion 2311 is provided with a first reinforcing rib 23111, which protrudes from the front surface of the front housing portion 2311 and is distributed on the outer periphery of the through hole 2311a, so as to enhance the hardness of the front surface of the front housing portion 2311; the first reinforcing rib 23111 is a concentric circle structure, a square structure, or a strip structure.

[0059] Please refer to the attached document. Figures 1-7In this embodiment, the output end of the power motor 232 is provided with a screw portion 2321; the gear transmission module 233 includes a drive gear portion 2334, which is connected to the first gear portion 2331 and the second gear portion 2332, and drives the first gear portion 2331 and the second gear portion 2332 to rotate synchronously; the drive gear portion 2334 is connected to the screw portion 2321 of the power motor 232; so that the power motor 232 can drive the drive gear portion 2334 to rotate through the cooperation of the screw portion 2321 and the drive gear portion 2334, thereby facilitating the power motor 232 to drive the first gear portion 2331 and the second gear portion 2332 to rotate synchronously through the drive gear portion 2334, so as to realize the massage member 24 to move up and down and rotate simultaneously.

[0060] When the two gear transmission modules 233 are driven by the same power motor 232, the screw part 2321 of the power motor 232 is connected to the driving gear part 2334 of each gear transmission module 233. The two driving gear parts 2334 are arranged on both sides of the screw part 2321 of the power motor 232, so that one power motor 232 can drive the two massage pieces 24 to move up and down and rotate at the same time, which simplifies the structure and saves costs.

[0061] Please refer to the attached document. Figures 1-4 In embodiment 8, the massage unit 241 has a plurality of sub-massage units 2411, which are located at different positions on the surface of the massage unit 241 facing the flexible outer sleeve 22, and the plurality of sub-massage units 2411 act on different positions of the user's waist; by arranging the plurality of sub-massage units 2411, the massage range of the massage unit 241 relative to the user's waist is increased.

[0062] Multiple sub-massage units 2411 include a first massage ball 24111 and a second massage ball 24112. The first massage ball 24111 and the second massage ball 24112 are distributed at different positions on the massage member 24 and have a positional difference along the front-back direction, so that the first massage ball 24111 and the second massage ball 24112 can apply different forces to the user's waist, thereby making it easy for the user to adjust and adapt to different massage intensities according to themselves.

[0063] The massage component 24 is an integral injection molded part, which ensures the hardness of the massage component 24 and avoids the massage component 24 from being easily broken. The massage component 24 is provided with a second connecting part 242, which is located at the center of the massage component 24. Multiple sub-massage parts 2411 are connected to the peripheral sidewall of the second connecting part 242 so that the multiple sub-massage parts 2411 can be connected to each other through the second connecting part 242.

[0064] The second connecting part 242 is detachably connected to the connecting shaft 2333, so that the second connecting part 242 can be connected to or disconnected from the connecting shaft 2333, which improves the ease of installation and removal of the massage component 24. The second connecting part 242 and the second positioning part 23332 of the connecting shaft 2333 form a positioning connection structure, which ensures the positional accuracy between the second connecting part 242 and the connecting shaft 2333, and improves the connection stability between the second connecting part 242 and the connecting shaft 2333.

[0065] Please refer to the attached document. Figures 1-4 In embodiment 8 of this application, the second connecting portion 242 is connected to the first connecting portion 23333 of the connecting shaft 2333 by screws; so that the second connecting portion 242 can be detachably connected to the connecting shaft 2333 by means of screw connection. The first massage ball 24111 and the second massage ball 24112 are both thin shell structures and are connected to each other so that the first massage ball 24111 and the second massage ball 24112 can massage the user's waist at the same time.

[0066] Please refer to the attached document. Figures 1-4 8-9, the massage component 24 is provided with a second reinforcing rib 243. The second reinforcing rib 243 is disposed on the side of the massage component 24 facing away from the flexible outer sleeve 22 and is located in the groove of the massage component 24, which enhances the overall rigidity of the massage component 24. The second reinforcing rib 243 passes sequentially through the first massage ball 24111, the second connecting part 242 and the second massage ball 24112 to reinforce the first massage ball 24111, the second connecting part 242 and the second massage ball 24112 as a whole. At the same time, the second connecting part 242 connects the first massage ball 24111 and the second massage ball 24112, which improves the connection strength between the first massage ball 24111, the second connecting part 242 and the second massage ball 24112, ensuring that the first massage ball 24111 and the second massage ball 24112 apply pressure to the user's waist and avoids breakage when the user's waist applies pressure to the first massage ball 24111 and the second massage ball 24112.

[0067] Please refer to the attached document. Figures 8-9In this embodiment, the second reinforcing rib 243 includes a first reinforcing portion 2431 and a second reinforcing portion 2432. The first reinforcing portion 2431 is arranged along a circumferential direction and passes sequentially through the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112, so as to increase the outer peripheral strength of the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112. The second connecting portion 242 is located in the internal space of the first reinforcing portion 2431. The second reinforcing portion 2432 extends from the peripheral sidewall of the second connecting portion 242 into the inner space of the first reinforcing portion 2431. The sidewalls extend to increase the inner strength of the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112. Multiple second reinforcing portions 2432 extend in different directions along the axis of the second connecting portion 242 and are arranged relative to it. This allows the multiple second reinforcing portions 2432 to directly guide the circumferential tensile stress generated by pressure on the user's waist along the second reinforcing portions 2432, preventing tearing origins at the junction of the first massage ball 24111, the second massage ball 24112, and the second connecting portion 242. Optionally, there may be four second reinforcing portions 2432.

[0068] Please refer to the attached document. Figure 8 and 10 In the second embodiment, the second reinforcing rib 243 includes a first reinforcing portion 2431 and a third reinforcing portion 2433. The first reinforcing portion 2431 is arranged along a ring direction and passes sequentially through the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112, so that the first reinforcing portion 2431 increases the outer peripheral strength of the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112. The second connecting portion 242 is located in the internal space of the first reinforcing portion 2431. The third reinforcing portion 2433 has a cross-shaped structure and is arranged relative to the first massage ball 24111 or the second massage ball 24112, and is connected to different positions of the first reinforcing portion 2431 and the second connecting portion 242, so that the third reinforcing portion 2433 increases the inner strength of the first massage ball 24111, the second connecting portion 242, and the second massage ball 24112.

[0069] In the third embodiment of the application, a lumbar support chair includes a multi-directional massage device 100, which is part of the lumbar support chair. The lumbar support chair is used to provide physical support for the user's waist and to provide multi-directional massage to the user's waist.

[0070] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a multi-directional massage device 100 and a lumbar support chair. The chair body 10 is used as a seat, tabletop, desktop, or sofa placed externally. The chair body 10 includes a first support part 11 and a second support part 12, with the second support part 12 integrally connected to the first support part 11. A seat cushion 111 is connected to the first support part 11, and the seat cushion 111 is used to flexibly contact the user's buttocks. The multi-directional massage component 20 includes a connecting seat 21, a flexible cover 22, a movable seat 23, and a massage element 24. The connecting seat 21 is connected to the second support part 12 and is located on the side of the second support part 12 facing the user's waist. The flexible cover 22 is detachably fitted onto the connecting seat 21 and wraps around the connecting seat 21. The massage element 24 is located on the connecting seat 21. Between the flexible outer sleeve 22 and the movable seat 23, which is movably connected to the connecting seat 21 and moves in the vertical direction; the massage member 24 is disposed in the movable seat 23 on the side facing the flexible outer sleeve 22, and is rotatably connected to the movable seat 23 and rotates along the rotation axis of the massage member 24. The massage member 24 adjusts its vertical position as the movable seat 23 moves; the part of the massage member 24 facing the flexible outer sleeve 22 serves as the massage part 241. The massage part 241 is located in different positions on the flexible outer sleeve 22 as the massage member 24 rotates, so as to realize the movement and rotation of the massage member 24, thereby facilitating multi-directional massage of the user's waist, avoiding the inability of the massage member 24 to move, and improving the massage convenience of the multi-directional massage device 100.

[0071] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0072] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0073] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0074] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A multi-directional massage device, characterized in that, The multi-directional massage device, used in a lumbar support chair, includes: A seating chair body is used as a seat, tabletop, desktop, or sofa placed externally; the seating chair body includes a first support part and a second support part, the second support part being integrally connected to the first support part; the first support part is connected to a seat cushion, the seat cushion being used to flexibly contact the user's buttocks; A multi-directional massage component includes a connecting base, a flexible cover, a movable base, and a massage element; the connecting base is connected to a second support portion and is located on the side of the second support portion facing the user's waist; the flexible cover is detachably fitted onto the connecting base and wraps around the connecting base; the massage element is located between the connecting base and the flexible cover. The movable seat is movably connected to the connecting seat and moves along the vertical direction; the massage member is disposed in the movable seat on the side facing the flexible outer sleeve, the massage member is rotatably connected to the movable seat and rotates along the rotation axis of the massage member, and the vertical position of the massage member is adjusted as the movable seat moves; the part of the massage member facing the flexible outer sleeve serves as the massage section, and the massage section is located at different positions on the flexible outer sleeve as the massage member rotates.

2. The multi-directional massage device according to claim 1, characterized in that, The connecting seat is provided with a receiving cavity and a front first opening. The receiving cavity communicates with the front first opening and is used to receive the movable seat and the massage piece. When the flexible cover is fitted onto the connecting seat, the flexible cover covers the first opening on the front side of the connecting seat and exposes the connection point in the connecting seat that connects to the second support portion; at the same time, the portion of the flexible cover facing the user's waist is located on the front side of the massage member and can be contacted or protruded by the massage portion of the massage member.

3. The multi-directional massage device according to claim 1, characterized in that, The inner wall of the connecting seat is provided with a guide rail, which is installed on the inner wall of the connecting seat and arranged in the vertical direction; The movable seat is movably connected to the guide rail and moves along the length of the guide rail; the guide rail is stationary relative to the connecting seat; the movable seat is dynamically movable relative to the guide rail.

4. The multi-directional massage device according to claim 3, characterized in that, The side wall of the guide rail is provided with a rack section; The mobile base includes a housing, a power motor, and a gear transmission module; The housing is movably housed in the receiving cavity, and both the power motor and the gear transmission module are connected to the housing; the output end of the power motor is connected to the gear transmission module and drives the gear transmission module to work; The gear transmission module is provided with a first gear section, which rotates as the gear transmission module operates. The first gear section is arranged relative to the guide rail and meshes with the rack section, acting on different positions of the rack section. The movable seat adjusts its position relative to the guide rail as the first gear section rotates.

5. The multi-directional massage device according to claim 4, characterized in that, The housing includes a front housing portion and a rear housing portion, the front housing portion being detachably connected to the rear housing portion, and the massage member being located on the front side of the front housing portion; The rear housing portion is disposed on the rear side of the front housing portion, and the rear housing portion is provided with a second opening. A portion of the first gear is exposed to the second opening, and a portion of the first gear is located on one side of the second opening and engages with the rack portion of the guide rail.

6. The multi-directional massage device according to claim 5, characterized in that, The rear housing is provided with a receiving groove, which is arranged in the vertical direction and is in a vertically continuous state; the guide rail is fixedly connected to the inner wall of the receiving cavity and passes through the receiving groove; The rear housing portion is connected to a limiting plate, which is disposed on the rear side of the rear housing portion and fixedly connected to the rear housing portion; The limiting plate is located between the guide rail and the inner wall of the receiving cavity, and is combined with the guide rail of the rear housing portion.

7. The multi-directional massage device according to claim 6, characterized in that, The inner wall of the receiving cavity is provided with a first protrusion and a second protrusion, which are arranged in the vertical direction. The upper end of the guide rail is connected to the first boss by screws; the lower end of the guide rail is connected to the second boss by screws. When the guide rail connects the first boss and the second boss, there is a gap between the guide rail and the inner wall of the receiving cavity, and the limiting plate moves within this gap as the moving seat moves.

8. The multi-directional massage device according to claim 7, characterized in that, The guide rail has an elongated hole, which is arranged relative to the first boss or the second boss. The elongated hole is arranged in the vertical direction and is used for screws to pass through. The first boss or the second boss has a threaded hole, which is connected to the elongated hole in the front-back direction and is used for screw connection.

9. The multi-directional massage device according to claim 5, characterized in that, The guide rail has two rails, which are arranged side by side. The gear transmission module has multiple components, which are arranged on both sides of the power motor and act on the output end of the power motor; the two first gear components act on the corresponding guide rails respectively.

10. The multi-directional massage device according to claim 4, characterized in that, The gear transmission module also includes a second gear section, which is located in front of the first gear section and indirectly connected to the first gear section; the second gear section rotates as the first gear section rotates. The second gear is connected to a connecting shaft, which is arranged relative to the axis of the second gear and is positioned and connected to the second gear. The connecting shaft rotates as the second gear rotates. The connecting shaft is arranged along the front-to-back direction and passes through the front housing portion; the connecting end of the connecting shaft is located on the front side of the front housing portion and is connected to the massage component. The massage component rotates with the rotation of the connecting shaft and drives the massage portion to rotate, so that the massage portion acts on different positions of the user's waist.

11. The multi-directional massage device according to claim 10, characterized in that, The diameter of the second gear is larger than the diameter of the first gear; the second gear is connected to the first gear via the connecting module, which is a portion of the gear in the gear transmission module.

12. The multi-directional massage device according to claim 10, characterized in that, The second gear portion is provided with a first positioning hole, which is arranged relative to the axis of the second gear portion; The connecting shaft is provided with a first positioning part, a second positioning part, and a first connecting part; the first positioning part, the second positioning part, and the first connecting part are distributed at different positions on the connecting shaft; the first positioning part is positioned and connected to the first positioning hole; The second positioning part is positioned and connected to the positioning groove of the massage component, and the first connecting part is connected to the second connecting part of the massage component, and the two parts are detachably connected.

13. The multi-directional massage device according to claim 10, characterized in that, The front housing portion is provided with a through hole for the connecting shaft to pass through; The front housing portion is provided with a first reinforcing rib, which protrudes from the front surface of the front housing portion and is distributed on the outer periphery of the through hole; the first reinforcing rib is a concentric circle structure, a square structure or a strip structure.

14. The multi-directional massage device according to claim 10, characterized in that, The output end of the power motor is provided with a screw section; The gear transmission module includes a drive gear section, which connects the first gear section and the second gear section and drives the first gear section and the second gear section to rotate synchronously; the drive gear section is connected to the screw section of the power motor; When the two gear transmission modules are driven by the same power motor, the screw portion of the power motor is connected to the drive gear portion of each gear transmission module, and the two drive gear portions are arranged on both sides of the screw portion of the power motor.

15. The multi-directional massage device according to claim 10, characterized in that, The massage unit has multiple sub-massage units, which are located at different positions on the surface of the massage unit facing the flexible cover, and the multiple sub-massage units act on different positions of the user's waist; The plurality of sub-massage parts include a first massage ball and a second massage ball, the first massage ball and the second massage ball being distributed at different positions on the massage component and having a positional difference along the front-back direction; the massage component is an integral injection molded part, the massage component is provided with a second connecting part, the second connecting part being located at the center position of the massage component, and the peripheral sidewall of the second connecting part is connected to a plurality of sub-massage parts; The second connecting part is detachably connected to the connecting shaft and forms a positioning connection structure with the second positioning part of the connecting shaft.

16. The multi-directional massage device according to claim 15, characterized in that, The second connecting part is connected to the first connecting part of the connecting shaft by screws; Both the first massage ball and the second massage ball have thin-shell structures and are connected to each other. The massage component is provided with a second reinforcing rib, which is located on the side of the massage component facing away from the flexible outer shell and is located in the groove of the massage component. The second reinforcing rib passes through the first massage ball, the second connecting part and the second massage ball in sequence to reinforce the first massage ball, the second connecting part and the second massage ball as a whole. At the same time, the second connecting part connects the first massage ball and the second massage ball.

17. The multi-directional massage device according to claim 16, characterized in that, The second reinforcing rib includes a first reinforcing portion and a second reinforcing portion; the first reinforcing portion is arranged along a circumferential direction and passes sequentially through the first massage ball, the second connecting portion and the second massage ball; the second connecting portion is located in the internal space of the first reinforcing portion; the second reinforcing portion extends from the peripheral sidewall of the second connecting portion to the inner sidewall of the first reinforcing portion, and there are multiple second reinforcing portions, which extend in different directions along the axis of the second connecting portion and are arranged relative to the second connecting portion; Alternatively, the second reinforcing rib includes a first reinforcing portion and a third reinforcing portion; the first reinforcing portion is arranged along a circumferential direction and passes sequentially through the first massage ball, the second connecting portion, and the second massage ball; the second connecting portion is located in the internal space of the first reinforcing portion; the third reinforcing portion has a cross-shaped structure, is arranged relative to the first massage ball or the second massage ball, and is connected to different positions of the first reinforcing portion and the second connecting portion.

18. A lumbar support chair, characterized in that, Includes the multidirectional massage device as described in any one of claims 1 to 17.

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