Mechanical massage device for seat

Abstract

The invention provides a seat mechanical massage device which is characterized in that the inner side wall of a shell assembly is provided with an abutting structure, a transmission assembly is installed in the shell assembly and used for abutting against the abutting structure, and a driving assembly is installed in the shell assembly and connected with the transmission assembly. The driving assembly is used for driving the transmission assembly to roll relative to the shell assembly. The massage part is fixedly connected with the transmission assembly, protrudes out of the shell assembly and is used for moving relative to the shell assembly according to a circular track under driving of the driving assembly and the transmission assembly and rotating at a low rotating speed and large torque, so that the massage part can overcome resistance when massaging a human body, and the massage effect is improved. And the massage comfort is improved.

Description

Technical Field

[0001] The present invention generally relates to the technical field of massage devices, and in particular to a mechanical seat massage device. Background Art

[0002] Existing massagers can be placed on the back, leg rests, and other parts of various types of seats; they can also be used alone to massage the head, arms, and the like.

[0003] Existing massage devices all have motors installed inside them. The motor's rotating shaft drives the massage elements to perform the massage function. However, most existing motors have high rotational speeds and low torque. When used in a massage device and a person rests against the massage element, the motor encounters significant resistance. The torque provided by the motor is insufficient to overcome this resistance and continue the massage. Furthermore, the high rotational speed may cause discomfort. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a mechanical seat massage device.

[0005] The present invention provides a mechanical seat massage device, comprising: a housing assembly, wherein an inner side wall of the housing assembly has an abutment structure; a transmission assembly, the transmission assembly being mounted in the housing assembly and configured to abut against the abutment structure and roll relative to the housing assembly; a drive assembly, the drive assembly being installed inside the housing assembly and connected to the transmission assembly, and being used to drive the transmission assembly to roll relative to the housing assembly; The massage member is fixedly connected to the transmission assembly and protrudes from the housing assembly, and is used to move relative to the housing assembly along a circular trajectory and rotate on its own under the drive assembly and the transmission assembly.

[0006] According to the technical solution provided by the present invention, the transmission assembly includes: An eccentric shaft, the eccentric shaft being connected to the driving assembly; the massage element being fixedly connected to the eccentric shaft; a transmission mechanism, the transmission mechanism being rotatably connected to the eccentric shaft; The driving assembly is used to drive the eccentric shaft and the massage element to rotate, and then the eccentric shaft drives the transmission mechanism to roll between the abutment structures; When the transmission mechanism rolls between the abutting structures, it drives the eccentric shaft and the massage member to rotate relative to the transmission mechanism along a circular trajectory.

[0007] According to the technical solution provided by the present invention, the eccentric shaft has a first protrusion and a second protrusion; the first protrusion and the second protrusion are staggered along the extension direction of the eccentric shaft, and are arranged away from each other in a direction perpendicular to the extension direction of the eccentric shaft.

[0008] According to the technical solution provided by the present invention, the transmission mechanism includes: a first cycloidal wheel and a second cycloidal wheel, wherein the first cycloidal wheel and the second cycloidal wheel are both arranged between the abutting structure; A first connecting hole is formed on the first cycloid wheel; the first protrusion is rotatably mounted in the first connecting hole; A second connecting hole is formed on the second cycloid wheel; the second protrusion is rotatably mounted in the second connecting hole; When the eccentric shaft rotates, the first cycloid wheel and the second cycloid wheel roll synchronously between the abutment structures, so as to make the eccentric shaft and the massage member rotate relative to the transmission mechanism along a circular trajectory.

[0009] According to the technical solution provided by the present invention, the first protrusion and the first connecting hole, as well as the second protrusion and the second connecting hole on the eccentric shaft are rotatably connected via bearings.

[0010] According to the technical solution provided by the present invention, the driving component includes: a first drive device, the first drive device being fixedly mounted in the housing assembly; a first driving gear, the first driving gear being fixedly connected to a driving end of the first driving device; a first driven gear, the first driven gear being fixedly connected to one end of the eccentric shaft and meshing with the first driving gear; The first driving device is used to drive the first driving gear to rotate, and the first driven gear drives the eccentric shaft and the massage member to rotate when meshing with the first driving gear.

[0011] According to the technical solution provided by the present invention, the driving component includes: An air cavity, wherein a rotor is rotatably mounted on an inner shell of the air cavity; the rotor passes through the air cavity and is fixedly connected to the transmission assembly; An air inlet and an air outlet are provided on the air cavity; the air inlet is connected to a high-pressure air source; the high-pressure air source is used to blow high-pressure gas into the air cavity to drive the rotor to rotate; the air outlet is used to discharge the gas.

[0012] According to the technical solution provided by the present invention, the driving component includes: a second drive device, the second drive device being fixedly mounted in the housing assembly; The transmission assembly further includes: a first transmission member, the first transmission member being fixedly mounted on the rotating shaft of the second driving device; a second transmission member, the second transmission member being rotatably mounted in the housing assembly and meshing with the first transmission member; a second driving gear, the second driving gear being coaxially fixedly connected to the second transmission member; a second driven gear, the second driven gear being fixedly connected to one end of the eccentric shaft and meshing with the second driving gear; The second driving device drives the first transmission member to rotate, and drives the eccentric shaft and the massage member to rotate through the transmission action between the second transmission member, the second driving gear and the second driven gear.

[0013] According to the technical solution provided by the present invention, the abutment structure includes a plurality of abutment columns; the plurality of abutment columns are evenly arranged along the circumference of the inner side wall of the housing assembly for abutting against the transmission assembly.

[0014] According to the technical solution provided by the present invention, the housing assembly includes: Upper shell, middle shell and lower shell; The drive assembly is fixedly installed between the middle shell and the lower shell; the transmission assembly is installed between the middle shell and the upper shell; A plurality of the abutting columns are evenly arranged on the inner side wall of the middle shell.

[0015] The beneficial effects of the present invention are: The inner sidewall of the housing assembly has an abutment structure. The transmission assembly is mounted within the housing assembly and is configured to abut the abutment structure. The drive assembly is mounted within the housing assembly and is connected to the transmission assembly, configured to drive the transmission assembly to roll relative to the housing assembly. The massage element is fixedly connected to the transmission assembly and protrudes from the housing assembly. Driven by the drive and transmission assemblies, it moves in a circular trajectory relative to the housing assembly. The massage element rotates at a relatively low speed and high torque, enabling it to overcome resistance while massaging the body, thereby enhancing massage comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a schematic diagram of a seat equipped with a massage device; Figure 2 An exploded view of the massage device in the first embodiment; Figure 3is a schematic diagram of the first cycloid wheel abutting against the abutment column; Figure 4 is a cross-sectional view of the transmission assembly; Figure 5 is another schematic diagram of the transmission assembly; Figure 6 is a schematic diagram of the meshing relationship between the first driving gear and the first driven gear; Figure 7 Schematic diagram of the structure of a needle roller bearing; Figure 8 is a structural schematic diagram of the housing assembly; Figure 9 It is a structural diagram of the massage part; Figure 10 is another structural schematic diagram of the massage element; Figure 11 An exploded view of the massage device in the second embodiment; Figure 12 Schematic diagram of the structure of the worm wheel and worm; Figure 13 An exploded view of a drive assembly in a third embodiment; Figure 14 is a cross-sectional view of a drive assembly in a third embodiment; Figure 15 is a cross-sectional view of a massage device; Among them: 1. Shell assembly; 2. Abutment column; 3. Massage member; 4. Eccentric shaft; 5. First protrusion; 6. Second protrusion; 7. First cycloid wheel; 8. Second cycloid wheel; 9. First connecting hole; 10. Second connecting hole; 11. First driving device; 12. First driving gear; 13. First driven gear; 14. Second driving device; 15. Worm; 16. Worm wheel; 17. Second driving gear; 18. Second driven gear; 19. Heat dissipation hole; 20. Oil storage tank; 21. Reinforcement rib; 22. Second shell; 23. Air bag; 24. Needle roller bearing; 25. Air cavity; 26. Rotor; 27. Air inlet; 28. Air outlet; 29. ​​Upper shell; 30. Middle shell; 31. Lower shell. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Please refer to Figure 1-2 The present invention provides a mechanical seat massage device, comprising: A housing assembly 1, wherein the inner side wall of the housing assembly 1 has an abutment structure; a transmission assembly, the transmission assembly being installed in the housing assembly 1 and configured to abut against the abutment structure and roll relative to the housing assembly; a drive assembly, the drive assembly being installed inside the housing assembly and connected to the transmission assembly, and being used to drive the transmission assembly to roll relative to the housing assembly; The massage member 3 is fixedly connected to the transmission assembly and protrudes from the housing assembly, and is used to move relative to the housing assembly along a circular trajectory and rotate on its own under the drive assembly and the transmission assembly.

[0020] Specifically, refer to Figure 9-10 The end of the massage member 3 for massage is hemispherical in shape, and the part connected to the transmission component has an inclined angle, thereby tilting the entire massage member 3. Thus, during the rotation process, the massage member 3 can achieve the massage function.

[0021] The massage element is fixedly mounted on the transmission assembly and, driven by the transmission assembly, translates in a circular trajectory relative to the housing assembly while simultaneously rotating. The transmission assembly and the abutment structure cooperate to roll within the housing assembly 1, reducing rotational speed and increasing torque. This allows the massage device to overcome resistance and massage at a lower rotational speed, enhancing massage comfort.

[0022] Further, refer to Figure 3-5 , the transmission assembly includes: An eccentric shaft 4, the eccentric shaft 4 is connected to the driving assembly; the massage element 3 is fixedly connected to the eccentric shaft 4; a transmission mechanism, the transmission mechanism being rotatably connected to the eccentric shaft 4; The driving assembly is used to drive the eccentric shaft 4 and the massage member 3 to rotate, and then the eccentric shaft 4 drives the transmission mechanism to roll between the abutment structures; When the transmission mechanism rolls between the abutting structures, it drives the eccentric shaft 4 and the massage member 3 to rotate relative to the transmission mechanism along a circular trajectory.

[0023] Furthermore, the eccentric shaft 4 has a first protrusion 5 and a second protrusion 6 ; the first protrusion 5 and the second protrusion 6 are staggered along the extension direction of the eccentric shaft 4 , and are arranged away from each other in a direction perpendicular to the extension direction of the eccentric shaft 4 .

[0024] Furthermore, the transmission mechanism includes: a first cycloidal wheel 7 and a second cycloidal wheel 8, wherein the first cycloidal wheel 7 and the second cycloidal wheel 8 are both arranged between the abutting structures; The first cycloid wheel 7 is provided with a first connecting hole 9; the first protrusion 5 is rotatably mounted in the first connecting hole 9; The second cycloid wheel 8 is provided with a second connecting hole 10; the second protrusion 6 is rotatably mounted in the second connecting hole 10; When the eccentric shaft 4 rotates, the first cycloid wheel 7 and the second cycloid wheel 8 roll synchronously between the abutting structures, so as to make the eccentric shaft 4 and the massage member 3 rotate relative to the transmission mechanism along a circular trajectory.

[0025] Furthermore, the first protrusion 5 and the first connecting hole 9 , as well as the second protrusion 6 and the second connecting hole 10 on the eccentric shaft 4 are rotatably connected via bearings 24 .

[0026] Specifically, refer to Figure 7 Bearings 24 (needle bearings) are installed in both the first connecting hole 9 and the second connecting hole 10. The first protrusion 5 is fixedly connected to the inner ring of the bearing 24 in the first connecting hole 9, and the main body of the eccentric shaft 4 and the center of the bearing 24 do not coincide.

[0027] The second protrusion 6 is fixedly connected to the inner ring of the bearing 24 in the second connecting hole 10 , so that the main body of the eccentric shaft 4 and the center of the bearing 24 do not coincide with each other.

[0028] When the eccentric shaft 4 rotates, the first cycloid wheel 7 and the second cycloid wheel 8 roll synchronously between the plurality of abutment posts 2 , so as to make the eccentric shaft 4 translate relative to the housing assembly 1 along a circular trajectory.

[0029] Due to the above-mentioned movement mode, the eccentric shaft 4 rotates one circle, which only causes the cycloid wheel to roll to a position where it abuts against the next abutment column 2, thereby reducing the rotation speed and increasing the torque at the same time.

[0030] In the first embodiment, referring to Figure 6 , the driving assembly includes: A first driving device 11, wherein the first driving device 11 is fixedly installed in the housing assembly 1; a first driving gear 12, wherein the first driving gear 12 is fixedly connected to a driving end of the first driving device 11; a first driven gear 13, which is fixedly connected to one end of the eccentric shaft 4 and meshes with the first driving gear 12; The first driving device 11 is used to drive the first driving gear 12 to rotate. The first driven gear 13 drives the eccentric shaft 4 and the massage member 3 to rotate when meshing with the first driving gear 12 .

[0031] The first and second protrusions 5 and 6 on the eccentric shaft 4 then rotate relative to the first cycloidal wheel 7 via the bearings 24; the same applies to the second cycloidal wheel 8. Since the distance between the main body of the eccentric shaft 4 and the rotation axis of the drive device remains constant, equal to the sum of the radii of the meshing gears, the eccentric shaft 4 drives the first cycloidal wheel 7 to roll between the multiple abutment posts 2, thereby driving the eccentric shaft 4 to translate along a circular trajectory relative to the housing assembly 1 and simultaneously rotate.

[0032] Based on the above structural design, the rotation speed of the massage element 3 can be reduced and the torque can be increased, thereby improving the comfort during massage.

[0033] In the second embodiment, referring to Figure 11-12 , the driving assembly includes: a second drive device 14, the second drive device 14 being fixedly mounted in the housing assembly; The transmission assembly further includes: a first transmission member 15, which is fixedly mounted on the rotating shaft of the second driving device 14; a second transmission member 16 rotatably mounted in the housing assembly and meshing with the first transmission member 15 ; A second driving gear 17 , the second driving gear 17 is coaxially fixedly connected to the second transmission member 16 ; a second driven gear 18 , which is fixedly connected to one end of the eccentric shaft 4 and meshes with the second driving gear 17 ; The second driving device 14 drives the first transmission member 15 to rotate, and drives the eccentric shaft 4 and the massage member 3 to rotate through the transmission action between the second transmission member 16, the second driving gear 17 and the second driven gear 18 in sequence.

[0034] The first and second protrusions 5 and 6 on the eccentric shaft 4 then rotate relative to the first cycloidal wheel 7 via the bearings 24; the same applies to the second cycloidal wheel 8. Since the distance between the main body of the eccentric shaft 4 and the rotation axis of the drive device remains constant, equal to the sum of the radii of the meshing gears, the eccentric shaft 4 drives the first cycloidal wheel 7 to roll between the multiple abutment posts 2, thereby driving the eccentric shaft 4 to translate along a circular trajectory relative to the housing assembly 1 and simultaneously rotate.

[0035] By utilizing the transmission mode of the worm 15 and the worm wheel 16 , the rotation speed of the massage member 3 can be further reduced, the torque can be increased, and the comfort of the massage can be improved.

[0036] In the third embodiment, reference Figure 13-14 , the driving assembly includes: An air cavity 25, wherein a rotor 26 is rotatably mounted on an inner shell of the air cavity 25; the rotor 26 passes through the air cavity 25 and is fixedly connected to the transmission assembly; The air cavity 25 is provided with an air inlet 27 and an air outlet 28; the air inlet 27 is connected to a high-pressure air source; the high-pressure air source is used to blow high-pressure gas into the air cavity 25 to drive the rotor 26 to rotate; the air outlet 28 is used to discharge the gas.

[0037] Specifically, the rotor 26 includes a main shaft, and a side wall of the main shaft is provided with a plurality of abutment petals extending spirally along the side of the main shaft, and a plurality of blowing spaces are formed between the plurality of abutment petals and the inner wall of the air cavity 25 .

[0038] The high pressure gas source can provide an air pressure of at least 0.4 MPa. When the high pressure gas source blows air into the air cavity 25, the air pressure in different blowing spaces varies, and the air pressure difference in adjacent blowing spaces is used to drive the rotor 26 to rotate.

[0039] Furthermore, the abutment structure includes a plurality of abutment columns 2 ; the plurality of abutment columns 2 are evenly arranged along the circumference of the inner side wall of the housing assembly, for abutting against the transmission assembly.

[0040] Furthermore, the housing assembly includes: Upper shell 29, middle shell 30 and lower shell 31; The drive assembly is fixedly installed between the middle housing 30 and the lower housing 31; the transmission assembly is installed between the middle housing 30 and the upper housing 29; The plurality of abutment columns 2 are evenly arranged on the inner side wall of the middle housing 30 .

[0041] The middle housing 30 is used to fix and support the drive assembly in conjunction with the lower housing 31. The reinforcing ribs 21 are located inside the housing assembly and are used to abut against the driven gear, reducing the contact area between the housing assembly and the driven gear, reducing friction and increasing life.

[0042] Further, refer to Figure 8 The housing assembly 1 is provided with a plurality of heat dissipation holes 19. The heat dissipation holes 19 can improve the fluidity of the gas inside and outside the housing assembly 1 and accelerate the heat dissipation inside the housing assembly 1.

[0043] In order to reduce the resistance during the transmission process, the housing assembly 1 further has a plurality of oil storage tanks 20 inside for storing lubricating oil. The lubricating oil can reduce the friction between the various structures, thereby reducing the transmission resistance.

[0044] During massage, the force required to be applied to the human body is significantly greater than the force required for transmission between the structures. Therefore, the massage element 3 needs to have a large torque to achieve the massage effect. Furthermore, since the force is mutual, the housing assembly 1 itself needs to have sufficient structural strength to provide the torque.

[0045] Therefore, the outer surface of the housing assembly 1 has reinforcing ribs 21. The plurality of reinforcing ribs 21 are interconnected to enhance the structural strength of the housing assembly 1. In this embodiment, the reinforcing ribs 19 include a plurality of cylindrical structures and a plurality of strip structures.

[0046] Further, refer to Figure 15 , also includes: A second housing 22, wherein the housing assembly 1 is movably mounted in the second housing 22; The air bag 23 is arranged in the second shell 22 and is located between the outer wall of the shell assembly 1 and the inner wall of the second shell 22. The air bag 23 is used to drive the shell assembly 1, the massage element 3 and the transmission assembly to move relative to the second shell 22 when inflated, so that the massage element 3 protrudes from the second shell 22.

[0047] The air bag 23 is connected to an air circuit controller, an air storage device, and an air pump in sequence through an air pipe.

[0048] The working process includes: initially, the housing assembly 1 and the massage member 3 protruding from the housing assembly 1 are entirely located inside the second housing 22; The air pump drives the gas to move, and the gas passes through the gas storage device and the gas path controller and enters the air bag 23; The air bag 23 expands to drive the housing assembly 1 and the massage member 3 protruding from the housing assembly 1 to move as a whole, so that the massage member 3 protrudes from the second housing 22; The massage element 3 on the massage device rotates to complete the massage.

[0049] The above description is merely a preferred embodiment of the present invention and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in the present invention.

Claims

1. A mechanical seat massage device, characterized in that: include: a housing assembly, wherein an inner side wall of the housing assembly has an abutment structure; a transmission assembly, the transmission assembly being mounted in the housing assembly and configured to abut against the abutment structure and roll relative to the housing assembly; a drive assembly, the drive assembly being installed inside the housing assembly and connected to the transmission assembly, and being used to drive the transmission assembly to roll relative to the housing assembly; A massage member (3) is fixedly connected to the transmission assembly and protrudes from the housing assembly, and is used to move relative to the housing assembly along a circular trajectory under the drive of the drive assembly and the transmission assembly, and to rotate on its own.

2. A mechanical seat massage device according to claim 1, characterized in that: The transmission assembly comprises: An eccentric shaft (4), the eccentric shaft (4) being connected to the driving assembly; the massage element (3) being fixedly connected to the eccentric shaft (4); a transmission mechanism, the transmission mechanism being rotatably connected to the eccentric shaft (4); The driving assembly is used to drive the eccentric shaft (4) and the massage member (3) to rotate, and the eccentric shaft (4) drives the transmission mechanism to roll between the abutment structures; When the transmission mechanism rolls between the abutment structures, it drives the eccentric shaft (4) and the massage member (3) to rotate relative to the transmission mechanism along a circular trajectory.

3. A mechanical seat massage device according to claim 2, characterized in that: The eccentric shaft (4) has a first protrusion (5) and a second protrusion (6); the first protrusion (5) and the second protrusion (6) are staggered along the extension direction of the eccentric shaft (4), and are arranged away from each other in a direction perpendicular to the extension direction of the eccentric shaft (4).

4. A mechanical seat massage device according to claim 3, characterized in that: The transmission mechanism comprises: a first cycloid wheel (7) and a second cycloid wheel (8), wherein the first cycloid wheel (7) and the second cycloid wheel (8) are both arranged between the abutment structures; A first connecting hole (9) is provided on the first cycloid wheel (7); the first protrusion (5) is rotatably mounted in the first connecting hole (9); A second connecting hole (10) is provided on the second cycloid wheel (8); the second protrusion (6) is rotatably mounted in the second connecting hole (10); When the eccentric shaft (4) rotates, the first cycloid wheel (7) and the second cycloid wheel (8) roll synchronously between the abutment structure, so as to cause the eccentric shaft (4) and the massage element (3) to rotate relative to the transmission mechanism along a circular trajectory.

5. A mechanical seat massage device according to claim 4, characterized in that: The first protrusion (5) and the first connecting hole (9), as well as the second protrusion (6) and the second connecting hole (10) on the eccentric shaft (4) are rotatably connected via bearings (24).

6. The mechanical seat massage device according to claim 2, characterized in that: The drive assembly includes: A first drive device (11), the first drive device (11) being fixedly mounted in the housing assembly; a first driving gear (12), the first driving gear (12) being fixedly connected to a driving end of the first driving device (11); a first driven gear (13), the first driven gear (13) being fixedly connected to one end of the eccentric shaft (4) and meshing with the first driving gear (12); The first driving device (11) is used to drive the first driving gear (12) to rotate, and the first driven gear (13) drives the eccentric shaft (4) and the massage member (3) to rotate when meshing with the first driving gear (12).

7. The mechanical seat massage device according to claim 1, characterized in that: The drive assembly includes: An air cavity (25), wherein a rotor (26) is rotatably mounted on an inner shell of the air cavity (25); the rotor (26) passes through the air cavity (25) and is fixedly connected to the transmission assembly; An air inlet (27) and an air outlet (28) are provided on the air cavity (25); the air inlet (27) is connected to a high-pressure air source; the high-pressure air source is used to blow high-pressure gas into the air cavity (25) to drive the rotor (26) to rotate; the air outlet (28) is used to discharge the gas.

8. The mechanical seat massage device according to claim 2, characterized in that: The drive assembly includes: a second drive device (14), the second drive device (14) being fixedly mounted in the housing assembly; The transmission assembly further comprises: a first transmission member (15), the first transmission member (15) being fixedly mounted on the rotating shaft of the second drive device (14); a second transmission member (16), the second transmission member (16) being rotatably mounted in the housing assembly and meshing with the first transmission member (15); a second driving gear (17), the second driving gear (17) being coaxially fixedly connected to the second transmission member (16); a second driven gear (18), the second driven gear (18) being fixedly connected to one end of the eccentric shaft (4) and meshing with the second driving gear (17); The second driving device (14) drives the first transmission member (15) to rotate, and drives the eccentric shaft (4) and the massage member (3) to rotate through the transmission action between the second transmission member (16), the second driving gear (17) and the second driven gear (18).

9. The mechanical seat massage device according to claim 1, characterized in that: The abutment structure comprises a plurality of abutment columns (2); the plurality of abutment columns (2) are evenly arranged along the circumference of the inner side wall of the housing assembly and are used for abutting against the transmission assembly.

10. The mechanical seat massage device according to claim 9, characterized in that: The housing assembly includes: An upper shell (29), a middle shell (30) and a lower shell (31); The drive assembly is fixedly mounted between the middle housing (30) and the lower housing (31); the transmission assembly is mounted between the middle housing (30) and the upper housing (29); A plurality of the abutment columns (2) are evenly arranged on the inner side wall of the middle shell (30).

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