Massager

Abstract

The utility model provides a massager which comprises a massage head and a machine body, a motor and a control module are arranged in the machine body, a shaft element linked with an output shaft of the motor is arranged in the massage head, a massage piece is sleeved outside the shaft element, the massage head comprises an upper shell and a lower shell, and the peripheral edge of the upper shell and the peripheral edge of the lower shell are matched with each other and detachably connected to form a closed inner cavity; the inner wall of the upper shell is provided with a first positioning part, and the inner wall of the lower shell is provided with a second positioning part; the bearing is fixed on the outer side of the shaft element and embedded in the limiting groove, the side wall of the limiting groove abuts against the end face of the outer ring of the bearing to limit axial movement of the outer ring of the bearing, axial part locking is achieved by abutting the side wall of the groove against the outer ring of the bearing, and a traditional gland and a traditional fastener are thoroughly omitted.

Description

Technical Field

[0001] The utility model relates to a massager. Background Art

[0002] Existing massager heads generally utilize a monolithic housing structure. This requires a separate component to secure the bearing, which then mates with the shaft component as a single unit. This approach not only requires a dedicated gland, increasing material costs, but the serial assembly of multiple components can easily lead to tolerance accumulation, compromising bearing positioning accuracy. Furthermore, the step-by-step assembly process results in low assembly efficiency, making it difficult to meet mass production requirements. Utility Model Content

[0003] The purpose of the utility model is to provide a massager in order to overcome the shortcomings and deficiencies of the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a massager comprising a massage head and a body, wherein a motor and a control module are provided in the body, wherein a shaft element linked to the motor output shaft is provided in the massage head, and a massage piece is provided on the outer cover of the shaft element, and the massage head comprises an upper shell and a lower shell, wherein the peripheral edge of the upper shell and the peripheral edge of the lower shell match each other and are detachably connected to form a closed inner cavity; a first positioning portion is provided on the inner wall of the upper shell, and a second positioning portion is provided on the inner wall of the lower shell, and the two are docked and combined to form a limiting groove; a bearing is fixed on the outside of the shaft element, and the bearing is embedded in the limiting groove, and the side wall of the limiting groove abuts against the end face of the outer ring of the bearing to limit its axial movement.

[0005] As a preferred technical solution of the present invention, the first positioning portion and the second positioning portion are respectively provided with complementary arc-shaped grooves, which are combined to form a closed limiting groove adapted to the outer profile of the bearing.

[0006] As a preferred technical solution of the present invention, the first positioning portion and the second positioning portion are arranged in the middle of the inner cavity of the massage head, dividing the inner cavity into a first massage chamber and a second massage chamber; the massage element includes a first massage cam and a second massage cam placed on both sides of the bearing, and the two are respectively located in the first massage chamber and the second massage chamber.

[0007] As an optimal technical solution of the present invention, the shaft element includes a shaft body, a shaft shoulder provided at one end of the shaft body and an external threaded section at the other end; the first massage cam, the bearing and the second massage cam are sequentially sleeved on the shaft body and fixed by a locking nut screwed into the external threaded section.

[0008] As an optimal technical solution of the present invention, a connecting sleeve is provided between the first massage cam and the bearing, and between the second massage cam and the bearing, and is sleeved outside the shaft; the connecting sleeve is rotatably engaged with the inner ring of the bearing, and the connecting sleeve is a split structure or is integrally formed with the corresponding massage cam.

[0009] As a preferred technical solution of the present invention, the ends of the upper shell and the lower shell relatively away from the fuselage are provided with an anti-dislocation structure, and the anti-dislocation structure includes: a protrusion provided at the end of the upper shell; a groove provided at the end of the lower shell and adapted to the shape of the protrusion; the matching position of the protrusion and the groove corresponds to the shaft element.

[0010] As an optimal technical solution of the present utility model, the control module includes a control circuit board, a switch button and a battery; a mounting bracket for pressing the battery into the fuselage is fixed to the inner wall of the fuselage, and a hook is provided on the side of the mounting bracket opposite to the battery; a slot for engaging with the hook is provided on the control circuit board, and the switch button is provided on the outer wall of the fuselage and corresponds to the position of the control circuit board.

[0011] As an optimal technical solution of the present invention, a connecting seat is fixed inside the body, and the connecting seat is sleeved on the outside of the motor; the outer end of the connecting seat is provided with a first threaded connection part through which the output shaft of the power supply motor passes; the massage head is provided with a second threaded connection part, and the first threaded connection part and the second threaded connection part are connected by a spring.

[0012] As an optimal technical solution of the present utility model, a silicone sleeve is provided on the outer side of the massage head, the upper end of the silicone sleeve seals and wraps the massage head, and the lower end is provided with an annular rib; an end cover is threadedly connected to the connection between the body and the massage head, and an annular groove is provided on the inner side of the end cover to engage with the annular rib.

[0013] As a preferred technical solution of the present invention, the output shaft of the motor is connected to the shaft element via a flexible connector.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: it adopts a split shell and integrated limit groove design, and compared with the traditional integral massage head, the independent pressure cover parts are eliminated, and the positioning parts of the upper shell and the lower shell are spliced together to form an integrated limit groove, which directly replaces the traditional metal pressure cover. The bearings, shaft elements, and massage parts are pre-installed as modular units, embedded in the semicircular groove of the lower shell, and the upper shell is fastened to synchronously lock the bearings, thereby improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the massage head portion of the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the massage head in the utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the fuselage in the utility model;

[0021] Figure 7 It is a schematic diagram of the internal structure of the massage head in the utility model.

[0022] Figure numerals: 1. massage head; 2. body; 3. motor; 4. shaft element; 5. upper shell; 6. lower shell; 7. first positioning part; 8. second positioning part; 9. limiting groove; 10. bearing; 11. first massage chamber; 12. second massage chamber; 13. first massage cam; 14. second massage cam; 15. shaft body; 16. shaft shoulder; 17. external thread section; 18. locking nut; 19. connecting sleeve; 20. bump; 21. groove; 22. control circuit board; 23. switch button; 24. battery; 25. mounting bracket; 26. hook; 27. slot; 28. connecting seat; 29. first threaded connection part; 30. second threaded connection part; 31. spring; 32. silicone sleeve; 33. annular rib; 34. end cover; 35. annular groove; 36. flexible connector; 37. protective cover. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1-7The massager shown in the figure includes a massage head 1 and a body 2. The body 2 is provided with a motor 3 and a control module. The massage head 1 is provided with a shaft element 4 linked to the output shaft of the motor 3. The shaft element 4 is provided with a massage piece on the outer cover. The massage head 1 includes an upper shell 5 and a lower shell 6. The peripheral edge of the upper shell 5 and the peripheral edge of the lower shell 6 match each other and can be detachably connected to form a closed inner cavity; the inner wall of the upper shell 5 is provided with a first positioning portion 7, the inner wall of the lower shell 6 is provided with a second positioning portion 8, and the two are connected to form a limiting groove 9; a bearing 10 is fixed to the outside of the shaft element 4, and the bearing 10 is embedded in the limiting groove. In the limiting groove 9, the side wall of the limiting groove 9 abuts against the end face of the outer ring of the bearing 10 to limit its axial movement. In this embodiment, the shaft element 4 and the output shaft of the motor 3 can be directly connected, or with the help of a connector (a soft connector 36, such as a spring 31, a metal hose or a silicone tube), or a rigid connector (a connecting shaft, a pin). The outer ring of the bearing 10 is provided with a protective sleeve 37. The protective sleeve 37 can be made of silicone, rubber or an elastic sponge, and can also be made of a plastic protective sleeve superimposed with silicone, rubber or an elastic sponge to prevent the bearing 10 from shaking and generating noise.

[0026] The split shell and integrated limit groove 9 design of the present application eliminates the independent pressure cover parts compared to the traditional integral massage head 1. The integrated limit groove 9 is formed by splicing the positioning parts of the upper shell 5 and the lower shell 6, which directly replaces the traditional metal pressure cover. The bearing 10, the shaft element 4, and the massage part are pre-installed as a modular unit and embedded in the semicircular groove of the lower shell 6. The upper shell 5 is fastened to synchronously lock the bearing 10, thereby improving assembly efficiency.

[0027] The first positioning portion 7 and the second positioning portion 8 are respectively provided with complementary arcuate grooves, which are combined to form a closed limiting groove 9 adapted to the outer contour of the bearing 10. The arcuate groove includes but is not limited to semicircular, semi-elliptical or polygonal segments.

[0028] The first positioning portion 7 and the second positioning portion 8 are arranged in the middle of the inner cavity of the massage head 1, dividing the inner cavity into a first massage chamber 11 and a second massage chamber 12; the massage part includes a first massage cam 13 and a second massage cam 14 respectively placed on both sides of the bearing 10, and the two are respectively located in the first massage chamber 11 and the second massage chamber 12. This application moves the motor 3 to the body 2, and uses the middle double positioning portion created by the split shell as a "structural wall" to divide the inner cavity into an independent first massage chamber 11 and a second massage chamber 12, thereby improving space utilization and enhancing the massage effect.

[0029] The shaft element 4 includes a shaft body 15, a shaft shoulder 16 provided at one end of the shaft body 15 and an external thread section 17 at the other end; the first massage cam 13, the bearing 10 and the second massage cam 14 are sequentially sleeved on the shaft body 15 and fixed by a locking nut 18 screwed into the external thread section 17.

[0030] A connecting sleeve 19 is provided between the first massage cam 13 and the bearing 10, and between the second massage cam 14 and the bearing 10, and is sleeved on the outside of the shaft body 15; the connecting sleeve 19 is rotatably matched with the inner ring of the bearing 10, and the connecting sleeve 19 is a split structure or is integrally formed with the corresponding massage cam, and is used to separate the two massage cams. The two connecting sleeves 19 can be plugged in and matched, and the bearing 10 is sleeved between the two connecting sleeves 19, or sleeved on one of the connecting sleeves 19.

[0031] The ends of the upper shell 5 and the lower shell 6 that are relatively away from the fuselage 2 are provided with an anti-dislocation structure, and the anti-dislocation structure includes: a protrusion 20 provided at the end of the upper shell 5; a groove 21 provided at the end of the lower shell 6 and adapted to the shape of the protrusion 20; the matching position of the protrusion 20 and the groove 21 corresponds to the shaft element 4, and can be assembled externally in advance. The bearing 10, the shaft element 4 and the massage part can be pre-installed as an integral module outside the shell, and then embedded in the limiting groove 9 of the lower shell 6, and the upper shell 5 is buckled to complete the assembly; alternatively, the shaft body 15 can be inserted into the lower shell 6 first, and the massage cam and the bearing 10 can be installed in turn. The tool operation window reserved in the groove 21 is used to insert the electric screwdriver to tighten the locking nut 18. According to actual conditions, the upper shell 5 and the lower shell 6 in this embodiment can be snapped, magnetically attracted, or screwed.

[0032] The control module includes a control circuit board 22, a switch button 23 and a battery 24; a mounting bracket 25 for press-fitting the battery 24 into the body 2 is fixed to the inner wall of the fuselage 2, and a hook 26 is provided on the side of the mounting bracket 25 opposite to the battery 24; a slot 27 is provided on the control circuit board 22 for engaging with the hook 26, and the switch button 23 is provided on the outer wall of the body 2 and corresponds to the position of the control circuit board 22. The hook 26 of the mounting bracket 25 is vertically engaged with the slot 27 of the control circuit board 22, and can be fixed with one hand. While the mounting bracket 25 fixes the circuit board, its back side presses the battery 24 against the inner wall of the body 2 (by snapping, screw connection or magnetic attraction), achieving double fixation with a single part.

[0033] A connecting base 28 is fixed inside the body 2, and the connecting base 28 is sleeved on the outside of the motor 3; a first threaded connection part 29 is provided at the outer end of the connecting base 28, through which the output shaft of the power supply machine 3 passes; the massage head 1 is provided with a second threaded connection part 30, and the first threaded connection part 29 and the second threaded connection part 30 are connected by a spring 31 (the two ends of the spring 31 can be screwed into the threaded connection part, or welded together).

[0034] A silicone sleeve 32 is provided on the outside of the massage head 1. The upper end of the silicone sleeve 32 seals and wraps the massage head 1, and the lower end is provided with an annular rib 33; an end cover 34 is threadedly connected to the connection between the body 2 and the massage head 1, and an annular groove 35 is provided on the inner side of the end cover 34 to engage with the annular rib 33.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A massager comprising a massage head (1) and a body (2), wherein the body (2) is provided with a motor (3) and a control module, the massage head (1) is provided with a shaft element (4) linked to an output shaft of the motor (3), and the shaft element (4) is provided with a massage element on its outer cover, characterized in that: The massage head (1) comprises an upper shell (5) and a lower shell (6), wherein the peripheral edge of the upper shell (5) and the peripheral edge of the lower shell (6) are matched with each other and are detachably connected to form a closed inner cavity; the inner wall of the upper shell (5) is provided with a first positioning portion (7), and the inner wall of the lower shell (6) is provided with a second positioning portion (8), and the two are butted together to form a limiting groove (9); a bearing (10) is fixed on the outer side of the shaft element (4), and the bearing (10) is embedded in the limiting groove (9), and the side wall of the limiting groove (9) abuts against the end face of the outer ring of the bearing (10) to limit its axial movement.

2. The massager according to claim 1, characterized in that: The first positioning portion (7) and the second positioning portion (8) are respectively provided with complementary arc-shaped grooves, which are combined to form a closed limiting groove (9) adapted to the outer profile of the bearing (10).

3. The massager according to claim 2, characterized in that: The first positioning portion (7) and the second positioning portion (8) are arranged in the middle of the inner cavity of the massage head (1), dividing the inner cavity into a first massage chamber (11) and a second massage chamber (12); the massage element comprises a first massage cam (13) and a second massage cam (14) respectively arranged on both sides of the bearing (10), and the two are respectively located in the first massage chamber (11) and the second massage chamber (12).

4. The massager according to claim 3, characterized in that: The shaft element (4) comprises a shaft body (15), a shaft shoulder (16) provided at one end of the shaft body (15) and an external thread section (17) at the other end; the first massage cam (13), the bearing (10) and the second massage cam (14) are sequentially sleeved on the shaft body (15) and fixed by a locking nut (18) screwed into the external thread section (17).

5. The massager according to claim 4, characterized in that: A connecting sleeve (19) sleeved on the outside of the shaft (15) is provided between the first massage cam (13) and the bearing (10), and between the second massage cam (14) and the bearing (10); the connecting sleeve (19) is rotatably matched with the inner ring of the bearing (10), and the connecting sleeve (19) is a split structure or is integrally formed with the corresponding massage cam.

6. The massager according to claim 4 or 5, characterized in that: The ends of the upper shell (5) and the lower shell (6) that are relatively far away from the fuselage (2) are provided with an anti-dislocation structure, and the anti-dislocation structure comprises: a protrusion (20) provided at the end of the upper shell (5); a groove (21) provided at the end of the lower shell (6) and adapted to the shape of the protrusion (20); and the matching position of the protrusion (20) and the groove (21) corresponds to the shaft element (4).

7. The massager according to claim 1, characterized in that: The control module comprises a control circuit board (22), a switch button (23) and a battery (24); a mounting bracket (25) for press-fitting the battery (24) into the body (2) is fixed on the inner wall of the body (2); a hook (26) is provided on the side of the mounting bracket (25) facing away from the battery (24); a slot (27) for engaging with the hook (26) is provided on the control circuit board (22); the switch button (23) is arranged on the outer wall of the body (2) and corresponds to the position of the control circuit board (22).

8. The massager according to claim 7, characterized in that: A connecting seat (28) is fixed inside the body (2), and the connecting seat (28) is sleeved on the outside of the motor (3); a first threaded connection portion (29) through which the output shaft of the power supply machine (3) passes is provided at the outer end of the connecting seat (28); the massage head (1) is provided with a second threaded connection portion (30), and the first threaded connection portion (29) and the second threaded connection portion (30) are connected via a spring (31).

9. The massager according to claim 1, characterized in that: The massage head (1) is covered with a silicone sleeve (32) on the outside, the upper end of the silicone sleeve (32) encloses the massage head (1), and the lower end is provided with an annular convex rib (33); the connection between the body (2) and the massage head (1) is threadedly connected with an end cover (34), and the inner side of the end cover (34) is provided with an annular groove (35) that is snap-fitted with the annular convex rib (33).

10. The massager according to claim 1, characterized in that: The output shaft of the motor (3) is connected to the shaft element (4) via a flexible connector (36).

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