A massage mechanism with an extendable and retractable massage head.

Abstract

This utility model provides a massage mechanism with an extendable and retractable massage head, including a housing, a massage component, and a drive motor. The massage component includes a rotating part rotatably connected to the housing, and the drive motor drives the rotating part to rotate via a transmission mechanism. The massage mechanism also includes a lead screw shaft, and the rotating part is provided with a receiving space for accommodating the lead screw shaft. The upper end of the lead screw shaft extends to the outside of the receiving space and is connected to the massage head. The wall of the receiving space has a spiral pattern, and the outer wall of the lead screw shaft is spirally connected to the spiral pattern. Through the extendable design of the lead screw shaft, when the lead screw shaft is retracted into the receiving space, most of the lead screw shaft is located within the receiving space, which greatly reduces the overall thickness of the mechanism when not in operation.

Description

Technical Field

[0001] This utility model relates to the field of massage instrument technology, and in particular to a massage mechanism with an extendable and retractable massage head. Background Technology

[0002] With the improvement of modern living standards and the acceleration of work pace, people's demand for health care equipment is increasing. As a stress-relieving product that integrates comfort and functionality, massage sofas are gradually becoming an important feature in homes and offices. Their core function is achieved through massage heads located on the backrest. Specifically, the massage heads are mounted on a column, and a drive motor rotates the column via a transmission mechanism. The rotation of the massage heads massages the shoulders, neck, back, and other areas of the body, thereby relieving muscle tension and promoting blood circulation.

[0003] For example, in a massage assembly structure disclosed in Chinese patent application CN202122356091.0, a lead screw shaft drives a rotating component to rise and fall. When the rotating component rises and falls to its limit position, the lead screw shaft drives the massage head to move, so that the massage head performs a massage action. Although this solution can meet the basic massage function requirements, the lead screw shaft itself requires a large axial installation space, and it cannot be folded or stored in the non-working state, resulting in a significant increase in the overall thickness of the massage mechanism. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a massage mechanism with an extendable and retractable massage head, which can greatly reduce the thickness of the massage mechanism and save space.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a massage mechanism with an extendable and retractable massage head, including a housing, a massage component, and a drive motor connected to the housing. The massage component includes a rotating part, which is rotatably connected to the housing. The drive motor drives the rotating part to rotate around its own axis through a transmission mechanism.

[0007] The massage component also includes a lead screw shaft. The rotating component has a receiving space along its axial direction for accommodating the lead screw shaft. The upper end of the lead screw shaft extends to the outside of the receiving space and is connected to a massage head. The wall of the receiving space has a spiral pattern, and the outer wall of the lead screw shaft is spirally connected to the spiral pattern.

[0008] Furthermore, the outer wall of the lead screw shaft has a threaded section and a smooth shaft section. The smooth shaft section is located at the lower end of the lead screw shaft, and the spiral pattern is located at the upper end of the accommodating space. When the smooth shaft section contacts the spiral pattern, the lead screw shaft drives the massage head to rotate.

[0009] Furthermore, the transmission mechanism includes a first worm gear fixedly connected to the output shaft of the drive motor, a rotating shaft rotatably connected to the housing, a first worm wheel and a first gear fixedly connected to the outer wall of the rotating shaft, the first worm wheel meshing with the first worm gear, the first gear meshing with a second gear, and the second gear connected to a rotating component.

[0010] Furthermore, the second gear is integrally formed with the rotating component.

[0011] Furthermore, the massage components are provided in two sets, with the two sets of massage components respectively located on both sides of the drive motor.

[0012] Furthermore, it also includes a connecting plate for connecting two lead screw shafts. The outer wall of the lead screw shaft also has a smooth rod section, which is located above the threaded section. The two ends of the connecting plate are respectively provided with through holes, and the smooth rod section is rotatably connected in the through holes.

[0013] Furthermore, a connecting section for connecting to a massage head is provided at the top of the lead screw shaft. The massage head is inserted into the connecting section and fixed to the connecting section by a locking screw. An anti-rotation surface is provided on the outer wall of the connecting section, and an abutment surface that contacts the anti-rotation surface is provided in the mounting hole of the massage head.

[0014] Furthermore, the housing is composed of an upper shell and a lower shell connected by fixing screws, and there is an installation space between the upper shell and the lower shell. The drive motor, transmission mechanism and rotating parts are installed in the installation space. The upper shell is provided with a clearance hole, and the lead screw shaft extends to the outside of the upper shell through the clearance hole.

[0015] Furthermore, it also includes a walking mechanism disposed inside the housing. The walking mechanism includes a walking motor fixedly connected to the housing. The output shaft of the walking motor is fixedly connected to a second worm gear. The housing is rotatably connected to a first rotating shaft, a second rotating shaft, and a third rotating shaft. The first rotating shaft is connected to a second worm wheel and a third gear. The second worm wheel is meshed with the second worm gear. The second rotating shaft is connected to a fourth gear and a fifth gear. The third gear is meshed with the fourth gear. The third rotating shaft is connected to a sixth gear and a seventh gear. The fifth gear is meshed with the sixth gear. The seventh gear is connected to an external rack.

[0016] The advantages of this invention are as follows: Through the telescopic design of the lead screw shaft, when the lead screw shaft retracts into its receiving space, most of the lead screw shaft is located within this space, significantly reducing the overall thickness of the mechanism when not in operation. When the user needs to use the massage function, the drive motor raises the lead screw shaft. When the optical axis section contacts the spiral pattern, the lead screw shaft stops rising. At this point, the lead screw shaft drives the massage head to perform the massage action. Compared to the lead screw shaft structure in existing technologies, the thickness of the mechanism is substantially reduced when not in operation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the exploded structure of a massage mechanism with an extendable and retractable massage head, according to the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the exploded structure of a massage mechanism with an extendable and retractable massage head, according to the present invention. Figure 2 .

[0020] Figure 3 This is a schematic diagram of a massage mechanism with an extendable and retractable massage head, according to the present invention.

[0021] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the connection relationship between the rotating component and the lead screw shaft of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Housing; 11. Upper housing; 111. Clearance hole; 12. Lower housing; 2. Massage component; 21. Rotating component; 211. Accommodating space; 212. Spiral pattern; 22. Lead screw shaft; 221. Threaded section; 222. Smooth shaft section; 223. Smooth shaft section; 224. Connecting section; 2241. Anti-rotation surface; 23. Massage head; 3. Drive motor; 4. Transmission mechanism; 41. First worm gear; 42. Rotating shaft; 43. First worm wheel; 44. First gear; 45. Second gear; 5. Connecting plate; 51. Through hole; 6. Locking screw; 7. Walking mechanism; 71. Walking motor; 72. Second worm gear; 73. First rotating shaft; 74. Second rotating shaft; 75. Third rotating shaft; 76. Second worm wheel; 77. Third gear; 78. Fourth gear; 79. Fifth gear; 8. Sixth gear; 9. Seventh gear. Detailed Implementation

[0025] Please see Figures 1 to 5This utility model provides a massage mechanism with an extendable and retractable massage head, including a housing 1, a massage component 2, and a drive motor 3 connected to the housing 1. The massage component 2 includes a rotating part 21, which is rotatably connected to the housing 1. The drive motor 3 drives the rotating part 21 to rotate around its own axis through a transmission mechanism 4.

[0026] The massage component 2 also includes a lead screw shaft 22. The rotating component 21 is provided with a receiving space 211 for accommodating the lead screw shaft 22 along its axial direction. The upper end of the lead screw shaft 22 extends to the outside of the receiving space 211 and is connected to a massage head 23. The wall of the receiving space 211 has a spiral pattern 212, and the outer wall of the lead screw shaft 22 is spirally connected to the spiral pattern 212.

[0027] By using the telescoping design of the lead screw 22 relative to the rotation axis, when the lead screw 22 is retracted into the receiving space 211, most of the lead screw 22 is located within the receiving space 211, which greatly reduces the overall thickness of the movement when not in operation.

[0028] Specifically, the outer wall of the lead screw shaft 22 has a threaded section 221 and a smooth shaft section 222. The outer diameter of the smooth shaft section 222 is the same as the outer diameter of the threaded end. The smooth shaft section 222 serves as a limiting function. The smooth shaft section 222 is located at the lower end of the lead screw shaft 22. The spiral pattern 212 is located at the upper end of the receiving space 211. That is, the middle and lower parts of the receiving space 211 are smooth hole walls, so that the smooth shaft section 222 can move freely in the lower part of the receiving space 211. When the smooth shaft section 222 contacts the spiral pattern 212, the lead screw shaft 22 drives the massage head 23 to rotate.

[0029] When the user needs to use the massage function, the drive motor 3 drives the lead screw 22 to rise. When the optical axis section 222 contacts the spiral pattern 212, the lead screw 22 stops rising. At this time, the lead screw 22 rotates around its own axis, thereby driving the massage head 23 to rotate and make the massage head 23 perform massage actions. Compared with the lead screw 22 structure in the prior art, the thickness of the mechanism is substantially reduced in the non-working state.

[0030] Specifically, the transmission mechanism 4 includes a first worm gear 41 fixedly connected to the output shaft of the drive motor 3. A rotating shaft 42 is rotatably connected to the housing 1. A first worm wheel 43 and a first gear 44 are fixedly connected to the outer wall of the rotating shaft 42. The first worm wheel 43 meshes with the first worm gear 41, and the first gear 44 meshes with a second gear 45. The second gear 45 is connected to the rotating component 21. The drive motor 3 drives the first worm gear 41 to rotate, which in turn drives the first worm wheel 43 to rotate, thereby driving the rotating shaft 42 and the first gear 44 to rotate. The first gear 44 then drives the second gear 45 to rotate, causing the rotating component 21 to rotate around its axis.

[0031] Specifically, the second gear 45 is integrally formed with the rotating part 21.

[0032] Specifically, the massage component 2 is provided in two sets, and the two sets of massage components 2 are respectively arranged on both sides of the drive motor 3.

[0033] Specifically, it also includes a connecting plate 5 for connecting the two lead screw shafts 22. The outer wall of each lead screw shaft 22 has a smooth section 223, which is positioned above the threaded section 221. The connecting plate 5 has through holes 51 at both ends, and the smooth section 223 is rotatably connected within the through holes 51. When the user's back rests against the massage component 2, without the connecting plate 5 connecting the two lead screw shafts 22, the upper ends of the two lead screw shafts 22 are prone to tilting into a V-shape under stress. However, by connecting the two lead screw shafts 22 with the connecting plate 5, this tilting problem is avoided when the upper ends of the two lead screw shafts 22 are subjected to stress.

[0034] Specifically, a connecting section 224 for connecting to the massage head 23 is provided at the top of the lead screw 22. The massage head 23 is inserted into the connecting section 224 and fixed to the connecting section 224 by a locking screw 6. The outer wall of the connecting section 224 is provided with an anti-rotation surface 2241, and the mounting hole of the massage head 23 is provided with an abutment surface that contacts the anti-rotation surface 2241. The design of the anti-rotation surface 2241 and the abutment surface can prevent the massage head 23 from rotating relative to the connecting section 224.

[0035] Specifically, the housing 1 is composed of an upper shell 11 and a lower shell 12 connected by fixing screws. There is an installation space between the upper shell 11 and the lower shell 12. The drive motor 3, the transmission mechanism 4 and the rotating component 21 are installed in the installation space. The upper shell 11 is provided with a clearance hole 111. The lead screw shaft 22 extends through the clearance hole 111 to the outside of the upper shell 11.

[0036] Specifically, it also includes a walking mechanism 7 disposed inside the housing 1. The walking mechanism 7 includes a walking motor 71 fixedly connected to the housing 1. The output shaft of the walking motor 71 is fixedly connected to a second worm gear 72. The housing 1 is rotatably connected to a first rotating shaft 73, a second rotating shaft 74, and a third rotating shaft 75. The first rotating shaft 73 is connected to a second worm wheel 76 and a third gear 77. The second worm wheel 76 is meshed with the second worm gear 72. The second rotating shaft 74 is connected to a fourth gear 78 and a fifth gear 79. The third gear 77 is meshed with the fourth gear 78. The third rotating shaft 75 is connected to a sixth gear 8 and a seventh gear 9. The fifth gear 79 is meshed with the sixth gear 8. The seventh gear 9 is meshed with an external rack (not shown in the figure). The rack is disposed inside a sofa, massage chair, or other massage instrument, and the length direction of the rack is consistent with the direction of the line connecting the head and feet. After the walking motor 71 is started, the seventh gear 9 can rotate through meshing transmission. Since the seventh gear 9 meshes with the rack, the entire massage mechanism can move along the length of the rack so that the massage head 23 can massage the entire back of the human body.

[0037] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A massage head extendable-retractable massage mechanism, characterized in that: It includes a housing, a massage component, and a drive motor connected to the housing. The massage component includes a rotating part, which is rotatably connected to the housing. The drive motor drives the rotating part to rotate around its own axis through a transmission mechanism. The massage component also includes a lead screw shaft. The rotating component has a receiving space along its axial direction for accommodating the lead screw shaft. The upper end of the lead screw shaft extends to the outside of the receiving space and is connected to a massage head. The wall of the receiving space has a spiral pattern, and the outer wall of the lead screw shaft is spirally connected to the spiral pattern.

2. The massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: The outer wall of the lead screw shaft has a threaded section and a smooth section. The smooth section is located at the lower end of the lead screw shaft, and the spiral pattern is located at the upper end of the accommodating space. When the smooth section contacts the spiral pattern, the lead screw shaft drives the massage head to rotate.

3. The massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: The transmission mechanism includes a first worm gear fixedly connected to the output shaft of the drive motor, a rotating shaft rotatably connected to the housing, a first worm wheel and a first gear fixedly connected to the outer wall of the rotating shaft, the first worm wheel meshing with the first worm gear, the first gear meshing with a second gear, and the second gear connected to a rotating component.

4. A massage mechanism with an extendable and retractable massage head as described in claim 3, characterized in that: The second gear is integrally formed with the rotating component.

5. A massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: The massage components are provided in two sets, with the two sets of massage components respectively located on both sides of the drive motor.

6. A massage mechanism with an extendable and retractable massage head as described in claim 5, characterized in that: It also includes a connecting plate for connecting two lead screw shafts. The outer wall of the lead screw shaft has a smooth rod section, which is located above the threaded section. The two ends of the connecting plate are respectively provided with through holes, and the smooth rod section is rotatably connected in the through holes.

7. A massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: A connecting section for connecting to a massage head is provided at the top of the lead screw shaft. The massage head is inserted into the connecting section and fixed to the connecting section by a locking screw. An anti-rotation surface is provided on the outer wall of the connecting section, and an abutment surface that contacts the anti-rotation surface is provided in the mounting hole of the massage head.

8. A massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: The housing consists of an upper shell and a lower shell connected by fixing screws. There is an installation space between the upper shell and the lower shell. The drive motor, transmission mechanism and rotating parts are installed in the installation space. The upper shell is provided with a clearance hole, and the lead screw shaft extends to the outside of the upper shell through the clearance hole.

9. A massage mechanism with an extendable and retractable massage head as described in claim 1, characterized in that: It also includes a walking mechanism disposed inside the housing. The walking mechanism includes a walking motor fixedly connected to the housing. The output shaft of the walking motor is fixedly connected to a second worm gear. The housing is rotatably connected to a first rotating shaft, a second rotating shaft, and a third rotating shaft. The first rotating shaft is connected to a second worm wheel and a third gear. The second worm wheel is meshed with the second worm gear. The second rotating shaft is connected to a fourth gear and a fifth gear. The third gear is meshed with the fourth gear. The third rotating shaft is connected to a sixth gear and a seventh gear. The fifth gear is meshed with the sixth gear. The seventh gear is connected to an external rack.

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