Massage head driving mechanism capable of changing position of massage head

Abstract

The utility model discloses a massage head driving mechanism capable of changing the position of a massage head, which is characterized in that a swing arm mounting wheel on the massage head driving mechanism is rotationally sleeved on a rotating shaft and can axially slide along the rotating shaft; the swing arm is used for abutting against a human body for massage and axially slides along the rotating shaft along with the swing arm mounting wheel; the first limiting part and the second limiting part are fixed to the rotating shaft in a spaced mode, the swing arm mounting wheel slides between the first limiting part and the second limiting part, and the threaded seat is fixedly arranged on the rotating shaft and is in threaded fit with the swing arm mounting wheel so that the swing arm mounting wheel can rotate when the rotating shaft drives the threaded seat to generate forward relative rotation relative to the swing arm mounting wheel. And when opposite rotation is generated, the swing arm mounting wheel can be pushed to the first limiting part to abut against the first limiting part, and when opposite rotation is generated, the swing arm mounting wheel can be pushed to the second limiting part to abut against the second limiting part so as to lock relative rotation of the swing arm mounting wheel and the threaded seat and relative rotation of the swing arm mounting wheel and the rotating shaft. The massage position of the massage head is changed through a simple structure.

Description

Technical Field

[0001] The utility model relates to the technical field of massagers, in particular to a massage head driving mechanism capable of changing the position of a massage head. Background Art

[0002] The massage heads on some current small massagers can only perform massage actions within a set area and cannot be moved to adjust the massage position. For example, shoulder and neck massagers are usually equipped with massage heads for massaging both sides of the human neck. However, since some users have thicker necks and some have thinner necks, the position of the massage heads cannot be adjusted, which limits the use of shoulder and neck massagers.

[0003] Although the massage heads on some existing large massagers can be moved to adjust the massage position, it usually requires the addition of additional motors and transmission mechanisms, and the structure is relatively complex, which is obviously not suitable for small massagers.

[0004] Therefore, how to achieve the problem of changing the position of the massage head through a simple structure remains to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a massage head driving mechanism capable of changing the position of the massage head, and the technical problem to be solved is to achieve the change of the massage position of the massage head through a simple structure.

[0006] To achieve the above-mentioned object, the solution of the present invention is: a massage head driving mechanism capable of changing the position of a massage head, comprising a rotating shaft, a swing arm mounting wheel, a swing arm, a threaded seat, a first limiting portion, and a second limiting portion;

[0007] The swing arm mounting wheel is rotatably sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft;

[0008] The end of the swing arm forms a massage head for abutting against the human body for massage. The swing arm is mounted on a swing arm mounting wheel and slides along the axial direction of the rotating shaft along with the swing arm mounting wheel.

[0009] The first limiting portion and the second limiting portion are fixed on the rotating shaft at intervals, and the swing arm mounting wheel slides between the first limiting portion and the second limiting portion, and the threaded seat is fixedly provided on the rotating shaft and cooperates with the thread of the swing arm mounting wheel, so that when the rotating shaft drives the threaded seat to rotate relative to the swing arm mounting wheel in a positive direction, the swing arm mounting wheel can be pushed toward the first limiting portion and abut against the first limiting portion; when the rotating shaft drives the threaded seat to rotate relative to the swing arm mounting wheel in a reverse direction, the swing arm mounting wheel can be pushed toward the second limiting portion and abut against the second limiting portion, so as to respectively lock the relative rotation of the swing arm mounting wheel, the threaded seat and the rotating shaft.

[0010] Furthermore, the second limiting portion is formed on the threaded seat.

[0011] Furthermore, the second limiting portion has a clamping portion protruding toward the swing arm mounting wheel, and the swing arm mounting wheel has a first abutting portion protruding at one end toward the second limiting portion. When the rotating shaft drives the threaded seat to rotate relative to the swing arm mounting wheel in the opposite direction, when the swing arm mounting wheel is pushed toward the second limiting portion, the first abutting portion abuts against the clamping portion along the circumference of the rotating shaft to lock the relative rotation of the swing arm mounting wheel, the threaded seat and the rotating shaft.

[0012] Furthermore, the first limiting portion is a stop pin that radially penetrates and is fixed on the rotating shaft, and the swing arm mounting wheel has a second abutment portion protruding from one end toward the stop pin. When the rotating shaft drives the threaded seat to produce a positive relative rotation relative to the swing arm mounting wheel, when the swing arm mounting wheel is pushed toward the first limiting portion, the second abutment portion abuts against the side wall of the stop pin along the circumference of the rotating shaft to lock the relative rotation of the swing arm mounting wheel, the threaded seat and the rotating shaft.

[0013] Furthermore, the swing arm includes a kneading hammer swing arm, and an inclined shaft inclined to the axis of the rotating shaft is formed on the swing arm mounting wheel. The middle part of the kneading hammer swing arm is pivotally connected to the inclined shaft, and the rotating shaft is rotatably installed on the shell. A slide groove is formed on the shell, and the extension direction of the slide groove is parallel to the rotating shaft. The bottom end of the kneading hammer swing arm extends into the slide groove, and the top end of the kneading hammer swing arm is used to abut against the human body for massage.

[0014] Furthermore, the swing arm mounting wheel transmits power to the swing arm through rotation, so that the massage head at the end of the swing arm performs a massage action.

[0015] Furthermore, the swing arm includes a pressing swing arm, and an eccentric shaft with an axis parallel to the axis of the rotating shaft is formed on the swing arm mounting wheel. The middle part of the pressing swing arm is pivotally connected to the eccentric shaft, and the rotating shaft is rotatably installed on the shell. A slide groove is formed on the shell, and the extension direction of the slide groove is parallel to the rotating shaft. The bottom end of the pressing swing arm extends into the slide groove, and the top end of the pressing swing arm is used to abut against the human body for massage.

[0016] Furthermore, the threaded seat is provided with an internal threaded hole at one end facing the swing arm mounting wheel, and the axis of the internal threaded hole is coaxial with the axis of the rotating shaft. The swing arm mounting wheel is provided with an external threaded rod protruding at one end facing the threaded seat, and the axis of the external threaded rod is coaxial with the axis of the rotating shaft. The external threaded rod is inserted into the internal threaded hole to form a threaded fit.

[0017] Furthermore, the swing arm mounting wheel, swing arm, threaded seat, first limiting portion and second limiting portion are respectively provided at both ends of the rotating shaft, and the swing arm mounting wheels, swing arm, threaded seat, first limiting portion and second limiting portion at both ends are symmetrically arranged.

[0018] Furthermore, a rotating shaft driving mechanism is provided, which is transmission-connected to the rotating shaft and is used to drive the rotating shaft to rotate forward or reverse.

[0019] After adopting the above solution, the beneficial effects of the utility model are:

[0020] (1) Since the swing arm mounting wheel and the threaded seat fixed on the rotating shaft are threadedly matched, when the rotating shaft drives the threaded seat to rotate relative to the swing arm mounting wheel by rotating the rotating shaft, the swing arm mounting wheel can be driven to move toward the first limit portion or the second limit portion, and the swing arm moves with the swing arm mounting wheel until the swing arm mounting wheel abuts against the first limit portion or the second limit portion fixed on the rotating shaft. After that, the rotating shaft continues to rotate in this direction, and the swing arm mounting wheel will not be able to continue to slide along the rotating shaft, but can only rotate together with the rotating shaft. The swing arm mounting wheel transmits the power to the swing arm through rotation, so that the massage head at the end of the swing arm performs a massage action, thereby achieving the change of the massage position of the massage head;

[0021] (2) An inclined shaft inclined to the axis of the rotating shaft is formed on the swing arm mounting wheel, the middle part of the kneading hammer swing arm is sleeved and pivoted on the inclined shaft, the rotating shaft is rotatably mounted on the housing, a slide groove is formed on the housing, the extension direction of the slide groove is parallel to the rotating shaft, the bottom end of the kneading hammer swing arm extends into the slide groove, and the top end of the kneading hammer swing arm is used to abut against the human body for massage, so when the swing arm mounting wheel and the rotating shaft rotate together, the top end of the kneading hammer swing arm will be driven to produce a kneading action on the human body;

[0022] (3) An eccentric shaft parallel to the axis of the rotating shaft is formed on the swing arm mounting wheel, the middle part of the pressing swing arm is sleeved and pivoted on the eccentric shaft, the rotating shaft is rotatably mounted on the shell, a slide groove is formed on the shell, the extension direction of the slide groove is parallel to the rotating shaft, the bottom end of the pressing swing arm extends into the slide groove, and the top end of the pressing swing arm is used to abut against the human body for massage. Therefore, when the swing arm mounting wheel and the rotating shaft rotate together, it will drive the top end of the pressing swing arm to produce a pressing action on the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the utility model;

[0025] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0026] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0027] Figure 5 It is a cross-sectional view of the utility model;

[0028] Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0029] Explanation of the reference numbers: 1-rotating shaft, 2-swing arm mounting wheel, 3-threaded seat, 4-first limiting portion, 5-clamping portion, 6-first abutting portion, 7-stop pin, 8-second abutting portion, 9-kneading hammer swing arm, 10-tilt shaft, 11-housing, 12-slide groove, 13-pressing swing arm, 14-eccentric shaft, 15-inner threaded hole, 16-external threaded rod, 17-rotating shaft driving mechanism, 18-motor, 19-transmission gear set, 20-massage head, 21-second limiting portion. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words, such as the use of terms such as "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific scope of protection of the present invention.

[0032] The utility model provides a massage head driving mechanism capable of changing the position of the massage head. Figure 1-6 As shown, it includes a rotating shaft 1, a swing arm mounting wheel 2, a swing arm, a threaded seat 3, a first limiting portion 4 and a second limiting portion 21; the rotating shaft 1 can rotate around its own axis. Specifically, the rotating shaft 1 is rotatably mounted on the housing 11. A rotating shaft driving mechanism 17 is also provided in the housing 1. The rotating shaft driving mechanism 17 includes a motor 18 and a transmission gear set 19. The power output by the motor 18 is transmitted to the rotating shaft 1 through the transmission gear set 19, so that when the motor 18 rotates forward, the rotating shaft 1 is driven to rotate forward, and when the motor 18 rotates reversely, the rotating shaft 1 is driven to rotate reversely (the forward and reverse rotations mentioned herein are only used to distinguish between two different rotation directions, and do not specifically refer to a specific direction);

[0033] The swing arm mounting wheel 2 is rotatably sleeved on the rotating shaft 1 and can slide axially along the rotating shaft 1; a massage head is formed at the end of the swing arm, and the massage head is used to abut the human body for massage. The swing arm is mounted on the swing arm mounting wheel 2 and slides axially along the rotating shaft 1 with the swing arm mounting wheel 2. The specific mounting structure is not limited, as long as the swing arm mounting wheel can be rotated to use its rotation as the power to drive the swing arm, and the power is transmitted to the swing arm, so that the massage head at the end of the swing arm performs a massage action. There are many conventional implementation methods in this field, and any one or more of them can be used. The specific structure adopted in this embodiment is given below.

[0034] The second limiting portion 21 and the first limiting portion 4 are fixed on the rotating shaft 1 at intervals, and the swing arm mounting wheel 2 slides between the first limiting portion 4 and the second limiting portion 21. The threaded seat 3 is fixed on the rotating shaft 1 (including the design of being integrally formed on the rotating shaft 1). The threaded seat 3 forms a threaded portion around the axis of the rotating shaft 1, and forms a threaded fit with the swing arm mounting wheel 2 through the threaded portion, so that when the rotating shaft 1 drives the threaded seat 3 to rotate relative to the swing arm mounting wheel 2 in the positive direction, the swing arm mounting wheel 2 can be pushed toward the first limiting portion 4, and the swing arm mounting wheel 2 can be pushed toward the first limiting portion 4. The first limiting portion 4 abuts, and when the rotating shaft 1 drives the threaded seat 3 to rotate relative to the swing arm mounting wheel 2 in the opposite direction, the swing arm mounting wheel 2 can be pushed toward the second limiting portion 21 and abut against the second limiting portion 21, so as to lock the relative rotation of the swing arm mounting wheel 2, the threaded seat 3 and the rotating shaft 1 respectively. After locking, when the rotating shaft 1 continues to rotate without changing the rotation direction of the rotating shaft 1, the swing arm mounting wheel 2 will rotate synchronously with the rotating shaft 1, and then drive the massage head 20 at the end of the swing arm to perform a massage action.

[0035] In this embodiment, it is specifically used in a shoulder and neck massager. Therefore, the swing arm mounting wheel 2, the swing arm, the threaded seat 3, the first limiting portion 4 and the second limiting portion 21 are respectively provided at both ends of the rotating shaft 1, and the swing arm mounting wheels 2, the swing arm, the threaded seat 3, the first limiting portion 4 and the second limiting portion 21 at both ends are symmetrically arranged to respectively massage the left and right sides of the human shoulder and neck, so that the swing arm mounting wheels 2 on both sides can be close to or far away from each other to be suitable for users with different neck thicknesses.

[0036] Specifically in this embodiment, the swing arm includes a kneading hammer swing arm 9, and an inclined shaft 10 inclined to the axis of the rotating shaft 1 is formed on the swing arm mounting wheel 2. The middle part of the kneading hammer swing arm 9 is pivotally connected to the inclined shaft 10, and a slide groove 12 is formed on the shell 11. The extension direction of the slide groove 12 is parallel to the rotating shaft 1. The bottom end of the kneading hammer swing arm 9 extends into the slide groove 12, and the top end of the kneading hammer swing arm 9 is used to abut the human body for massage to imitate the kneading action of human fingers.

[0037] Specifically in this embodiment, the swing arm also includes a pressing swing arm 13, and an eccentric shaft 14 with an axis parallel to the axis of the rotating shaft 1 is formed on the swing arm mounting wheel 2. The middle part of the pressing swing arm 13 is sleeved and pivoted on the eccentric shaft 14, and a slide groove 12 is formed on the shell 11. The extension direction of the slide groove 12 is parallel to the rotating shaft 1. The bottom end of the pressing swing arm 13 extends into the slide groove 12, and the top end of the pressing swing arm 13 is used to abut against the human body for massage to imitate the kneading action of human fingers.

[0038] Preferably, in this embodiment, in order to save costs, the second limiting portion 21 is formed on the threaded seat 3, which is the end of the threaded seat 3 facing the swing arm mounting wheel 2. Of course, the second limiting portion 21 and the threaded seat 3 can also be respectively provided on two parts, which is not specifically limited. Since the threaded seat 3 and the swing arm mounting wheel 2 are directly abutted axially along the rotating shaft 1, the abutment will be too tight, and when the rotation direction of the rotating shaft 1 is changed, the resistance between the two will be too large. To avoid this phenomenon, in a preferred embodiment, the second limiting portion 21 is provided with a clamping portion 5 protruding toward the swing arm mounting wheel 2, and the swing arm mounting wheel 2 is provided with a first abutting portion 6 protruding at one end toward the second limiting portion 21. When the rotating shaft 1 drives the threaded seat 3 to rotate relative to the swing arm mounting wheel 2 in the opposite direction, the swing arm mounting wheel 2 is pushed toward the second limiting portion 21, until the first abutting portion 6 abuts against the clamping portion 5 along the circumference of the rotating shaft 1 to lock the relative rotation of the swing arm mounting wheel 2, the threaded seat 3 and the rotating shaft 1. More preferably, the clamping portion 5 is provided in plurality, and the plurality of clamping portions 5 are arrayed around the rotating shaft 1, and the number and position of the first abutting portion 6 correspond to those of the clamping portion 5.

[0039] Since the first limiting portion 4 is in direct axial contact with the swing arm mounting wheel 2 along the rotating shaft 1, the contact may be too tight, and when the rotation direction of the rotating shaft 1 is changed, the resistance between the two is too large when the two are separated. To avoid this phenomenon, in a preferred embodiment, the first limiting portion 4 is a stop pin 7 that is radially passed through and fixed on the rotating shaft 1, and the swing arm mounting wheel 2 has a second abutment portion 8 protruding from one end thereof toward the stop pin 7. When the rotating shaft 1 drives the threaded seat 3 to rotate relative to the swing arm mounting wheel 2 in a positive direction, the swing arm mounting wheel 2 is pushed away from the threaded seat 3, and the second abutment portion 8 abuts against the side wall of the stop pin 7 along the circumference of the rotating shaft 1 to lock the relative rotation of the swing arm mounting wheel 2, the threaded seat 3 and the rotating shaft 1.

[0040] Specifically in this embodiment, the threaded seat 3 is provided with an internal threaded hole 15 at one end facing the swing arm mounting wheel 2, and the axis of the internal threaded hole 15 is coaxial with the axis of the rotating shaft 1. The swing arm mounting wheel 2 is provided with an external threaded rod 16 protruding at one end facing the threaded seat 3, and the axis of the external threaded rod 16 is coaxial with the axis of the rotating shaft 1. The external threaded rod 16 is inserted into the internal threaded hole 15 to form a threaded fit. Of course, it can also be reversed, with the external threaded rod 16 being provided on the threaded seat 3 and the internal threaded hole 15 being provided on the swing arm mounting wheel 2.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. Any equivalent changes made based on the key design of this case shall fall within the scope of protection of this case.

Claims

1. A massage head drive mechanism capable of changing the position of a massage head, characterized in that: It comprises a rotating shaft (1), a swing arm mounting wheel (2), a swing arm, a threaded seat (3), a first limiting portion (4) and a second limiting portion (21); The swing arm mounting wheel (2) is rotatably sleeved on the rotating shaft (1) and can slide axially along the rotating shaft (1); The end of the swing arm forms a massage head for contacting the human body to perform massage. The swing arm is mounted on a swing arm mounting wheel (2) and slides axially along the rotating shaft (1) along with the swing arm mounting wheel (2). The first limiting portion (4) and the second limiting portion (21) are fixed on the rotating shaft (1) at intervals, and the swing arm mounting wheel (2) slides between the first limiting portion (4) and the second limiting portion (21). The threaded seat (3) is fixed on the rotating shaft and threadedly matched with the swing arm mounting wheel (2). When the rotating shaft (1) drives the threaded seat (3) to rotate relative to the swing arm mounting wheel (2) in a positive direction, the swing arm mounting wheel (2) can be pushed toward the first limiting portion (4) and abutted against the first limiting portion (4). When the rotating shaft (1) drives the threaded seat (3) to rotate relative to the swing arm mounting wheel (2) in a reverse direction, the swing arm mounting wheel (2) can be pushed toward the second limiting portion (21) and abutted against the second limiting portion (21), thereby respectively locking the relative rotation of the swing arm mounting wheel (2), the threaded seat (3) and the rotating shaft (1).

2. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 1, characterized in that: The second limiting portion (21) is formed on the threaded seat (3).

3. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 1, characterized in that: The second limiting portion (21) is provided with a clamping portion (5) protruding toward the swing arm mounting wheel (2), and one end of the swing arm mounting wheel (2) is provided with a first abutting portion (6) protruding toward the second limiting portion (21). When the rotating shaft (1) drives the threaded seat (3) to rotate relative to the swing arm mounting wheel (2) in the opposite direction, the swing arm mounting wheel (2) is pushed toward the second limiting portion (21), and the first abutting portion (6) abuts against the clamping portion (5) along the circumference of the rotating shaft (1), thereby locking the relative rotation of the swing arm mounting wheel (2), the threaded seat (3) and the rotating shaft (1).

4. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 1, characterized in that: The first limiting portion (4) is a stop pin (7) radially penetrating and fixed on the rotating shaft (1); a second abutting portion (8) is protruded from one end of the swing arm mounting wheel (2) toward the stop pin (7); when the rotating shaft (1) drives the threaded seat (3) to generate positive relative rotation relative to the swing arm mounting wheel (2), the swing arm mounting wheel (2) is pushed toward the first limiting portion (4), and the second abutting portion (8) abuts against the side wall of the stop pin (7) along the circumference of the rotating shaft (1), thereby locking the relative rotation of the swing arm mounting wheel (2), the threaded seat (3) and the rotating shaft (1).

5. The massage head drive mechanism capable of changing the position of the massage head according to claim 1, characterized in that: The swing arm comprises a kneading hammer swing arm (9), an inclined shaft (10) inclined to the axis of the rotating shaft (1) is formed on the swing arm mounting wheel (2), the middle part of the kneading hammer swing arm (9) is sleeved and pivoted on the inclined shaft (10), the rotating shaft (1) is rotatably mounted on the shell (11), a slide groove (12) is formed on the shell (11), the extension direction of the slide groove (12) is parallel to the rotating shaft (1), the bottom end of the kneading hammer swing arm (9) extends into the slide groove (12), and the top end of the kneading hammer swing arm (9) is used to abut against the human body for massage.

6. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 1, characterized in that: The swing arm mounting wheel (2) transmits power to the swing arm by rotating, so that the massage head at the end of the swing arm performs a massage action.

7. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 1, characterized in that: The swing arm includes a pressing swing arm (13), an eccentric shaft (14) whose axis is parallel to the axis of the rotating shaft (1) is formed on the swing arm mounting wheel (2), the middle part of the pressing swing arm (13) is sleeved and pivoted on the eccentric shaft (14), the rotating shaft (1) is rotatably mounted on the shell (11), a slide groove (12) is formed on the shell (11), the extension direction of the slide groove (12) is parallel to the rotating shaft (1), the bottom end of the pressing swing arm (13) extends into the slide groove (12), and the top end of the pressing swing arm (13) is used to abut against the human body for massage.

8. The massage head drive mechanism capable of changing the position of the massage head according to claim 1, characterized in that: The threaded seat (3) is provided with an internal threaded hole (15) at one end facing the swing arm mounting wheel (2), and the axis of the internal threaded hole (15) is coaxial with the axis of the rotating shaft (1). The swing arm mounting wheel (2) is provided with an external threaded rod (16) protruding at one end facing the threaded seat (3), and the axis of the external threaded rod (16) is coaxial with the axis of the rotating shaft (1). The external threaded rod (16) is inserted into the internal threaded hole (15) to form a threaded fit.

9. The massage head drive mechanism capable of changing the position of the massage head according to claim 1, characterized in that: The swing arm mounting wheel (2), the swing arm, the threaded seat (3), the first limiting portion (4) and the second limiting portion (21) are respectively provided at both ends of the rotating shaft (1), and the swing arm mounting wheels (2), the swing arm, the threaded seat (3), the first limiting portion (4) and the second limiting portion (21) at both ends are symmetrically arranged.

10. A massage head drive mechanism capable of changing the position of a massage head as claimed in claim 9, characterized in that: A rotating shaft driving mechanism (17) is also provided, and the rotating shaft driving mechanism (17) is transmission-connected to the rotating shaft (1) and is used to drive the rotating shaft (1) to rotate forward or reverse.

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