Massage chair and massage mechanism thereof

Abstract

The utility model discloses a massage chair and a massage mechanism thereof. The massage chair comprises two racks arranged in parallel; the massage machine core is arranged between the two racks and comprises a machine shell, a first motor assembly, two first transmission mechanisms, a second motor and two second transmission mechanisms, the first motor assembly, the two first transmission mechanisms, the second motor and the two second transmission mechanisms are arranged in the machine shell, and the first transmission mechanisms are in driving connection with the kneading assembly and comprise walking gears used for being meshed with the racks; the second transmission mechanism is in driving connection with the knocking assembly. According to the scheme, the massage machine core is arranged between the two racks, power of the two ends of the first motor assembly on the massage machine core drives the kneading assembly to conduct kneading through the first transmission mechanism, and meanwhile the whole massage machine core is driven to do reciprocating motion along the racks; the second motor is arranged to drive the second transmission mechanism to drive the knocking assembly to knock and massage, the overall thickness of the massage machine core is ultra-thin, and the whole mechanism can achieve reciprocating motion of the massage machine core only through two racks.

Description

Technical Field

[0001] This utility model relates to the field of massage chair technology, and in particular to massage chairs and their massage mechanisms. Background Technology

[0002] Massage promotes blood circulation, alleviates back pain and prevents ailments, improves sleep quality, and relieves overall fatigue. Massage chairs are a popular health care device that utilizes mechanical rolling and squeezing forces for massage. Currently, massage chairs are constantly being updated and new models are emerging. Massage chairs are developing towards multi-functionality, diversification, and humanization. Massage of the back, waist, and spine, especially for middle-aged and elderly people, is the most important part of all massage treatments. Existing massage chairs typically install massage kneading heads, transmission mechanisms, speed-changing mechanisms, and motors in the backrest and other areas to achieve a combination of various movements such as blowing, kneading, opening and closing, pinching, rolling, acupressure, etc., thereby achieving massage, kneading, and tapping of specific parts of the body to relax muscles and promote blood circulation, and eliminate fatigue.

[0003] Patent application CN114366593A discloses a massage chair, including a backrest frame, a massage mechanism, a walking frame, a walking motor, a lead screw, and a nut seat. The backrest frame includes two guide rails on the left and right sides, with a first guide rail on the opposite sides of the two guide rails. The massage mechanism reciprocates along the first guide rail. The nut seat is fixedly connected to the massage mechanism. The walking frame is rotatably mounted on the two guide rails via two coaxially distributed first shafts on the left and right sides. The walking frame has two linear second guide rails. The walking motor drives the lead screw to rotate, causing the nut seat to reciprocate on the lead screw, thereby driving the massage mechanism to reciprocate along the second and first guide rails. This structure is simple and does not require additional structures on the massage mechanism to achieve the walking function. However, this solution has the following disadvantages: 1. Controlling the massage mechanism with a drive motor and driving the massage mechanism up and down along the lead screw with a walking motor results in high cost, redundant power, and a relatively heavy overall weight; 2. The presence of the first guide rail, second guide rail, and lead screw to guide the movement of the massage mechanism makes the structure relatively complex. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a massage chair and its massage mechanism that can simultaneously realize the walking of the massage core and kneading massage. The massage mechanism has a simple overall structure, an ultra-thin overall thickness, and can also have the function of tapping massage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A massage facility, comprising:

[0007] Two parallel racks;

[0008] The massage mechanism, positioned between two racks, includes a housing and a first motor assembly, two first transmission mechanisms, a second motor, and two second transmission mechanisms disposed within the housing. The two first transmission mechanisms are located on the left and right sides of the first motor assembly, respectively, and the first motor assembly drives and connects to the two first transmission mechanisms. Each first transmission mechanism drives and connects to a kneading component. Each first transmission mechanism includes a traveling gear for meshing with the racks. The two second transmission mechanisms are located on the left and right sides of the second motor, respectively, and the second motor drives and connects to the two second transmission mechanisms. Each second transmission mechanism drives and connects to a tapping component.

[0009] Preferably, a first worm extends from each of the left and right sides of the first motor assembly. The first transmission mechanism includes a first worm wheel, an intermediate gear, a double gear, and a traveling gear. The first worm wheel meshes with the first worm, the intermediate gear meshes with the first worm wheel, the upper gear of the double gear meshes with the intermediate gear, and the lower gear of the double gear meshes with the traveling gear. A kneading component is fixedly connected to the central shaft of the double gear. The traveling gear meshes with a rack on the same side, thereby driving the massage mechanism to reciprocate along the rack. The intermediate gear is a helical gear, and the upper gear of the double gear is a helical gear.

[0010] Preferably, the first motor assembly includes a first motor, a motor housing, a second worm gear, and a worm shaft. The first motor is fixedly connected to the motor housing, and the worm shaft is rotatably supported on the motor housing. The worm shaft is perpendicular to the second worm of the first motor. Both ends of the worm shaft extend outside the motor housing and form the first worm at both ends. The second worm gear is fixedly sleeved on the worm shaft located inside the motor housing, and the second worm of the first motor extends into the motor housing and meshes with the second worm gear.

[0011] Preferably, the kneading assembly includes a kneading shaft, a turntable, and at least one massage head assembly. The massage head assembly includes a massage head bushing and a massage head. The lower end of the kneading shaft is fixedly mounted on the central shaft of the double gear, and the upper end of the kneading shaft is fixedly connected to the turntable. The turntable is provided with at least one massage head mounting seat, and the massage head mounting seat and the massage head assembly correspond one-to-one. The massage head bushing is fitted onto the massage head mounting seat and fixedly connected to the massage head mounting seat, and the massage head is fixedly mounted on the massage head bushing.

[0012] Preferably, the second motor is fixedly mounted on the housing, with an output shaft extending from each of its left and right sides. The second transmission mechanism includes a striking shaft, an eccentric wheel, a connecting rod, and an eccentric cover plate. The output shaft is fixedly connected to one end of the striking shaft. The striking shaft is rotatably supported on the housing via multiple bearing seats. The eccentric wheel, connecting rod, and eccentric cover plate are sequentially sleeved on the striking shaft. The eccentric wheel is fixedly connected to the striking shaft, and the eccentric wheel, connecting rod, and eccentric cover plate are fixedly connected. The eccentric cover plate is used to limit the axial movement of the connecting rod. A striking component is fixedly connected to the upper end of the connecting rod. The output shaft of the second motor drives the striking shaft to rotate, thereby driving the striking component to reciprocate back and forth.

[0013] Preferably, the striking assembly includes a sliding sleeve and a striking head. The lower end of the sliding sleeve is fixedly connected to the connecting rod, and the striking head is fixedly installed on the upper end of the sliding sleeve. Two guide cylinders are protruding from the upper surface of the housing. The sliding sleeves are inserted into the guide cylinders one by one, and the striking head is located above the guide cylinders. The length of the guide cylinder is less than the length of the sliding sleeve, and the diameter of the striking head is greater than the diameter of the guide cylinder.

[0014] Preferably, the housing includes a bottom shell and a top cover fixedly installed on the top of the bottom shell. The kneading component extends out of the top cover. The bottom shell is provided with a first receiving groove and two second receiving grooves. The two second receiving grooves are located on the left and right sides of the first receiving groove, respectively. Two racks are respectively set in the two second receiving grooves and are limited by the top cover.

[0015] Preferably, the rack has a toothed groove on the side near the first receiving groove for meshing with the traveling gear, and a plurality of limiting grooves are spaced apart along the length of the rack. The two ends of the top cover are respectively provided with a plurality of limiting blocks protruding downwards, and the limiting blocks and limiting grooves correspond one to one. When the top cover is fixedly installed on the bottom shell, the limiting blocks of the top cover extend into the corresponding limiting grooves on the rack.

[0016] Preferably, a travel detection plate is also included. The travel detection plate is fixedly installed on the housing and is used to detect the travel distance of the massage mechanism along the rack. The upper ends of the two racks are fixedly connected by an upper bracket, and the lower ends of the two racks are fixedly connected by a lower bracket.

[0017] A massage chair, including a massage mechanism as described above.

[0018] The present invention has the following beneficial effects due to the adoption of the above technical solution: In the present invention, the massage core is set between two racks. The power at both ends of the first motor assembly on the massage core drives the kneading component to knead through the first transmission mechanism, while also driving the entire massage core to reciprocate along the racks. By setting a second motor to drive the second transmission mechanism to drive the tapping component to tap and massage, the overall thickness of the massage core is ultra-thin. The entire mechanism only needs to use two racks to realize the reciprocating motion of the massage core. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention (with the top cover removed).

[0022] Figure 4 This is a partial structural schematic diagram of the present invention (with the casing removed).

[0023] Figure 5 It is an exploded view of the casing;

[0024] Figure 6 This is the structural design of the first motor assembly, the first transmission mechanism, and the kneading assembly;

[0025] Figure 7 This is an exploded view of the first motor assembly;

[0026] Figure 8 This is a structural diagram of the second motor, the second transmission assembly, and the striking assembly.

[0027] Figure label:

[0028] 11. Rack; 111. Limiting groove; 12. Upper bracket; 13. Lower bracket;

[0029] 2. Massage mechanism; 201. Bottom shell; 2011. First receiving groove; 2012. Second receiving groove; 202. Top cover; 2021. Limiting block; 2022. Guide cylinder; 21. First motor assembly; 211. First motor; 2111. Second worm gear; 212. Motor housing; 213. Second worm wheel; 214. Worm shaft; 2141. First worm gear; 22. Kneading assembly; 221. Kneading shaft; 222. Turntable; 2221. Massage head fixing seat; 223. Massage head bushing; 224. Massage head; 231. First worm wheel; 232. Intermediate gear; 233. Double gear; 234. Travel gear; 24. Second motor; 241. Output shaft; 251. Striking shaft; 252. Eccentric wheel; 253. Connecting rod; 254. Eccentric cover plate; 255. Bearing housing; 256. Bearing; 26. Striking assembly; 261. Sliding sleeve; 262. Cylinder sleeve; 263. Striking head;

[0030] 3. Travel detection board. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] 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", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] 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, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0035] 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.

[0036] For clarity, in this invention, when the massage mechanism is installed on a massage chair, the side closer to the human body is considered the front, and vice versa; the side closer to the ground is considered the bottom, and vice versa.

[0037] like Figures 1 to 8 As shown, this utility model discloses a massage mechanism, comprising:

[0038] Two parallel racks 11;

[0039] The massage mechanism 2, located between two racks 11, includes a housing and a first motor assembly 21, two first transmission mechanisms, a second motor 24, and two second transmission mechanisms disposed within the housing. The two first transmission mechanisms are located on the left and right sides of the first motor assembly 21, and the first motor assembly 21 drives and connects to the two first transmission mechanisms. The first transmission mechanisms drive and connect to the kneading component 22. The first transmission mechanism includes a traveling gear 234 for meshing with the racks 11. The two second transmission mechanisms are located on the left and right sides of the second motor 24, and the second motor 24 drives and connects to the two second transmission mechanisms. The second transmission mechanisms drive and connect to the tapping component 26.

[0040] In this design, the massage mechanism 2 is positioned between two racks 11. The power from both ends of the first motor assembly 21 on the massage mechanism drives the kneading assembly 22 to knead through the first transmission mechanism, while simultaneously driving the entire massage mechanism 2 to reciprocate along the racks 11. By setting a second motor 24 to drive the second transmission mechanism to drive the tapping assembly 26 to tap and massage, the overall thickness of the massage mechanism is ultra-thin. The entire mechanism only requires two racks 11 to achieve the reciprocating motion of the massage mechanism 2.

[0041] like Figure 5 As shown, a first worm gear 2141 extends from the left and right sides of the first motor assembly 21, and the first transmission mechanism includes a first worm wheel 231, an intermediate gear 232, a double gear 233, and a traveling gear 234. The first worm wheel 231 meshes with the first worm gear 2141, the intermediate gear 232 meshes with the first worm wheel 231, the upper gear of the double gear 233 meshes with the intermediate gear 232, and the lower gear of the double gear 233 meshes with the traveling gear 234. A kneading component 22 is fixedly connected to the central shaft of the double gear 233. The traveling gear 234 meshes with the rack 11 on the same side, thereby driving the massage core 2 to reciprocate along the rack 11. The intermediate gear 232 is a helical gear, and the upper gear of the double gear 233 is a helical gear.

[0042] In this way, the transmission of the first motor assembly 21 to the walking gear 234 can be achieved by setting only one double gear 233, thereby making the overall thickness of the massage mechanism ultra-thin.

[0043] The first motor assembly 21 includes a first motor 211, a motor housing 212, a second worm gear 213, and a worm shaft 214. The first motor 211 is fixedly connected to the motor housing 212. The worm shaft 214 is rotatably supported on the motor housing 212. The worm shaft 214 is perpendicular to the second worm 2111 of the first motor 211. Both ends of the worm shaft 214 extend out of the motor housing 212 and form a first worm 2141 at both ends. The second worm gear 213 is fixedly sleeved on the worm shaft 214 located inside the motor housing 212. The second worm 2111 of the first motor 211 extends into the motor housing 212 and meshes with the second worm gear 213.

[0044] like Figure 6 As shown, the kneading assembly 22 includes a kneading shaft 221, a turntable 222, and at least one massage head assembly. The massage head assembly includes a massage head bushing 223 and a massage head 224. The lower end of the kneading shaft 221 is fixedly mounted at the central shaft of the double gear 233, and the upper end of the kneading shaft 221 is fixedly connected to the turntable 222. The turntable 222 is provided with at least one massage head fixing seat 2221, and the massage head fixing seat 2221 and the massage head assembly correspond one-to-one. The massage head bushing 223 is sleeved on the massage head fixing seat 2221 and fixedly connected to the massage head fixing seat 2221. The massage head 224 is fixedly mounted on the massage head bushing 223.

[0045] The second motor 24 is fixedly mounted on the housing, such as Figure 8 As shown, in this design, an output shaft 241 extends from each of the left and right sides of the second motor 24. The second transmission mechanism includes a striking shaft 251, an eccentric wheel 252, a connecting rod 253, and an eccentric cover plate 254. One end of the output shaft 241 is fixedly connected to the striking shaft 251. The striking shaft 251 is rotatably supported on the housing via multiple bearing assemblies. Generally, the end of the striking shaft 251 furthest from the output shaft 241 is rotatably supported on the housing via bearing assemblies. The bearing assemblies include bearing seats 255 and shafts. The eccentric wheel 252, connecting rod 253, and eccentric cover plate 254 are sequentially sleeved on the striking shaft 251. The eccentric wheel 252 is fixedly connected to the striking shaft 251. The eccentric wheel 252, connecting rod 253, and eccentric cover plate 254 are fixedly connected. The eccentric cover plate 254 is used to limit the axial movement of the connecting rod 253. A striking component 26 is fixedly connected to the upper end of the connecting rod 253. The output shaft 241 of the second motor 24 drives the striking shaft 251 to rotate, thereby driving the striking component 26 to reciprocate back and forth.

[0046] The striking assembly 26 includes a sliding sleeve 261 and a striking head 263. The lower end of the sliding sleeve 261 is fixedly connected to the connecting rod 253 by an internal bolt. The striking head 263 is fixedly installed on the upper end of the sliding sleeve 261. Two guide cylinders 2022 are protruding from the upper surface of the housing. The sliding sleeves 261 are inserted into the guide cylinders 2022 in a corresponding manner. The striking head 263 is located above the guide cylinders 2022. The length of the guide cylinder 2022 is less than the length of the sliding sleeve 261, and the diameter of the striking head 263 is greater than the diameter of the guide cylinder 2022.

[0047] To prevent the sliding sleeve 261 from tilting and touching the guide cylinder 2022 during its reciprocating motion, thus causing noise, it is necessary to limit the radial movement of the sliding sleeve 261 to ensure that it reciprocates vertically within the guide cylinder 2022. Figure 8 As shown, the sleeve 262 is provided on the outer sleeve of the sliding sleeve 261, and the sleeve 262 is fixedly installed inside the guide cylinder 2022.

[0048] like Figure 2 , Figure 3 and Figure 5 As shown, the housing includes a bottom shell 201 and an upper cover 202 fixedly installed above the bottom shell 201. The kneading component 22 extends out of the upper cover 202. The bottom shell 201 is provided with a first receiving groove 2011 and two second receiving grooves 2012. The two second receiving grooves 2012 are respectively located on the left and right sides of the first receiving groove 2011. Two racks 11 are respectively disposed in the two second receiving grooves 2012 and are limited by the upper cover 202.

[0049] like Figure 2 As shown, specifically, the rack 11 has a toothed groove on the side near the first receiving groove 2011 for meshing with the traveling gear 234. Multiple limiting grooves 111 are spaced apart along the length of the rack 11. Multiple limiting blocks 2021 protrude downwards from both ends of the upper cover 202, with each limiting block 2021 corresponding to a limiting groove 111. When the upper cover 202 is fixedly installed on the bottom shell 201, the limiting blocks 2021 of the upper cover 202 extend into the corresponding limiting grooves 111 on the rack 11. In this way, the cooperation of the limiting blocks 2021 and the limiting grooves 111 limits the rack 11 in the left-right and front-back directions, preventing the rack 11 from tilting within the second receiving groove 2012. This ensures that the traveling gear 234 and the rack 11 are always meshed during movement, making the massage mechanism 2 move more smoothly up and down along the rack 11.

[0050] like Figure 2As shown, this solution also includes a stroke detection plate 3, which is fixedly installed on the housing. The stroke detection plate 3 is used to detect the travel stroke of the massage mechanism 2 along the rack 11. The upper ends of the two racks 11 are fixedly connected by the upper bracket 12, and the lower ends of the two racks 11 are fixedly connected by the lower bracket 13.

[0051] This utility model also discloses a massage chair, including a massage mechanism as described above.

[0052] All features described in the specification, appended claims and drawings, whether individually or in any combination thereof, are essential features of this utility model.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "one implementation," "specific implementation," "other implementation," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment, implementation, or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described above can also be combined in any suitable manner in one or more embodiments, implementations, or examples. The technical solutions described in this utility model also include technical solutions formed by any one or more specific features, structures, materials, or characteristics described above, either individually or in combination.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A massaging mechanism characterized by comprising: include: Two parallel racks (11); The massage mechanism (2) is located between two racks (11) and includes a housing and a first motor assembly (21), two first transmission mechanisms, a second motor (24) and two second transmission mechanisms located inside the housing. The two first transmission mechanisms are located on the left and right sides of the first motor assembly (21) respectively. The first motor assembly (21) drives and connects the two first transmission mechanisms respectively. The first transmission mechanisms drive and connect the kneading component (22). The first transmission mechanism includes a traveling gear (234) for meshing with the rack (11). The two second transmission mechanisms are located on the left and right sides of the second motor (24) respectively. The second motor (24) drives and connects the two second transmission mechanisms respectively. The second transmission mechanisms drive and connect the tapping component (26).

2. The massage mechanism according to claim 1, wherein A first worm (2141) extends from the left and right sides of the first motor assembly (21). The first transmission mechanism includes a first worm wheel (231), an intermediate gear (232), a double gear (233), and a traveling gear (234). The first worm wheel (231) meshes with the first worm (2141), the intermediate gear (232) meshes with the first worm wheel (231), the upper gear of the double gear (233) meshes with the intermediate gear (232), and the lower gear of the double gear (233) meshes with the traveling gear (234). A kneading assembly (22) is fixedly connected to the central shaft of the double gear (233). The traveling gear (234) meshes with the rack (11) on the same side, thereby driving the massage core (2) to reciprocate along the rack (11). The intermediate gear (232) is a helical gear, and the upper gear of the double gear (233) is a helical gear.

3. The massage mechanism according to claim 2, wherein The first motor assembly (21) includes a first motor (211), a motor housing (212), a second worm gear (213), and a worm shaft (214). The first motor (211) is fixedly connected to the motor housing (212). The worm shaft (214) is rotatably supported on the motor housing (212). The worm shaft (214) is perpendicular to the second worm (2111) of the first motor (211). Both ends of the worm shaft (214) extend out of the motor housing (212) and form the first worm (2141) at both ends. The second worm gear (213) is fixedly sleeved on the worm shaft (214) located inside the motor housing (212). The second worm (2111) of the first motor (211) extends into the motor housing (212) and meshes with the second worm gear (213).

4. The massage mechanism according to claim 1, wherein The kneading assembly (22) includes a kneading shaft (221), a turntable (222), and at least one massage head assembly. The massage head assembly includes a massage head bushing (223) and a massage head (224). The lower end of the kneading shaft (221) is fixedly mounted at the central shaft of the double gear (233). The upper end of the kneading shaft (221) is fixedly connected to the turntable (222). At least one massage head fixing seat (2221) is provided on the turntable (222). The massage head fixing seat (2221) and the massage head assembly correspond one-to-one. The massage head bushing (223) is sleeved on the massage head fixing seat (2221) and fixedly connected to the massage head fixing seat (2221). The massage head (224) is fixedly mounted on the massage head bushing (223).

5. The massage mechanism according to claim 1, wherein The second motor (24) is fixedly mounted on the housing. An output shaft (241) extends from the left and right sides of the second motor (24). The second transmission mechanism includes a striking shaft (251), an eccentric wheel (252), a connecting rod (253), and an eccentric cover plate (254). The output shaft (241) is fixedly connected to one end of the striking shaft (251). The striking shaft (251) is rotatably supported on the housing through multiple bearing seats. The eccentric wheel (252), connecting rod (253), and eccentric cover plate (254) are sequentially mounted. The eccentric wheel (252) is fixedly connected to the striking shaft (251) and the eccentric wheel (252), the connecting rod (253) and the eccentric cover plate (254) are fixedly connected. The eccentric cover plate (254) is used to limit the axial movement of the connecting rod (253). A striking component (26) is fixedly connected to the upper end of the connecting rod (253). The output shaft (241) of the second motor (24) drives the striking shaft (251) to rotate, thereby driving the striking component (26) to strike back and forth.

6. A massage mechanism according to claim 5, wherein The striking assembly (26) includes a sliding sleeve (261) and a striking head (263). The lower end of the sliding sleeve (261) is fixedly connected to the connecting rod (253), and the striking head (263) is fixedly installed on the upper end of the sliding sleeve (261). Two guide cylinders (2022) are protruding on the upper surface of the housing. The sliding sleeve (261) is inserted into the guide cylinder (2022) in a corresponding manner. The striking head (263) is located above the guide cylinder (2022). The length of the guide cylinder (2022) is less than the length of the sliding sleeve (261), and the diameter of the striking head (263) is greater than the diameter of the guide cylinder (2022).

7. The massage mechanism according to claim 1, wherein The housing includes a bottom shell (201) and a top cover (202) fixedly installed on the bottom shell (201). The kneading component (22) extends out of the top cover (202). The bottom shell (201) is provided with a first receiving groove (2011) and two second receiving grooves (2012). The two second receiving grooves (2012) are located on the left and right sides of the first receiving groove (2011) respectively. Two racks (11) are respectively set in the two second receiving grooves (2012) and are limited by the top cover (202).

8. A massage mechanism according to claim 7, wherein The rack (11) has a toothed groove on the side near the first receiving groove (2011) for meshing with the traveling gear (234). The rack (11) has a plurality of limiting grooves (111) spaced apart along the length of the rack (11). The upper cover (202) has a plurality of limiting blocks (2021) protruding downward at both ends. The limiting blocks (2021) and the limiting grooves (111) correspond one to one. When the upper cover (202) is fixedly installed on the bottom shell (201), the limiting blocks (2021) of the upper cover (202) extend into the corresponding limiting grooves (111) on the rack (11).

9. The massage mechanism of claim 1, wherein It also includes a travel detection plate (3), which is fixedly installed on the housing. The travel detection plate (3) is used to detect the travel of the massage mechanism (2) along the rack (11). The upper ends of the two racks (11) are fixedly connected by the upper bracket (12), and the lower ends of the two racks (11) are fixedly connected by the lower bracket (13).

10. A massage chair, characterized by, Includes a massage device as described in any one of claims 1-9.

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