Telescopic swing mechanism

Abstract

The utility model discloses a telescopic swing mechanism, which comprises a shell, a swing rod and a swing rod, a first gearbox; the first gearbox is arranged in the shell, an output shaft of the first gearbox is sleeved with telescopic clutch teeth and swing clutch teeth, the rotating cylinder is arranged in a cavity in the shell and can be meshed with the telescopic clutch teeth, and the rotating cylinder is driven by the first gearbox and rotates with the output shaft of the first gearbox as a rotating center shaft; the telescopic cylinder is arranged at the upper end part of the shell in a sleeving manner and can be driven by the rotating cylinder to rotate and stretch out and draw back; one end of the transmission part is meshed with the swinging transmission teeth, and the other end of the transmission part upwards extends out of the rotating cylinder; and the swinging rod is arranged at the upper end part of the transmission piece in a sleeving manner and rotates and swings by taking the transmission rod as a rotating central shaft. According to the utility model, the first gearbox drives the rotating cylinder and the swinging rod to rotate through the telescopic clutch teeth and the swinging clutch teeth respectively, so that two moving modes of stretching and swinging are realized in a limited space, and the hand-held massage device is suitable for various hand-held massage devices.

Description

Technical field:

[0001] The utility model relates to the technical field of telescopic transmission machinery, in particular to a telescopic swing mechanism. Background technology:

[0002] Massage devices are mainly used to relieve muscle tension and fatigue, and they relax the body's soft tissues through high-frequency impact.

[0003] In principle, most massage equipment mainly uses a special internal high-speed motor to drive the massage head through a special transmission mechanism, moving it back and forth at a high beat rate per minute. The high-frequency vibration exerts force on the tissue, transmitting the pressure layer by layer to the fat, superficial fascia, deep fascia, and muscles.

[0004] However, the massage equipment currently on the market generally chooses to use a bevel gear set as the transmission mechanism between the motor and the massage head. For example, the utility model patent application with patent publication number CN216877114U discloses an improved fascia gun driving bevel gear, which includes: a housing, a motor is installed inside the housing, the output shaft of the motor is installed with a first bevel gear through a rotating shaft, the rotating shaft is fixed to the bearing seat through a bearing, the bearing seat is fixed to the inner wall of the housing, the inner wall of the housing is installed with a rotating rod through a bearing, the top of the rotating rod is installed with a second bevel gear through a flange, the first bevel gear and the second bevel gear are meshed with each other, and the top of the second bevel gear is installed with a pin through a fixing mechanism. In this solution, the first bevel gear is driven by the motor, and the second bevel gear is driven to rotate by the first bevel gear, which can largely prevent the vibration generated by the operation of the massage mechanism from being transmitted to the motor, effectively preventing damage to the motor.

[0005] However, this existing improved fascia gun driving bevel gear has the following shortcomings:

[0006] This technical solution utilizes a first bevel gear and a second bevel gear meshing together to transmit power, thereby driving the massage rod to extend and retract. However, the massage rod can only achieve telescopic movement and cannot rotate or swing simultaneously. Furthermore, while the use of a bevel gear set can reduce vibration, it also reduces the extension range of the massage head and the corresponding massage force. Furthermore, the first and second bevel gears in this technical solution are arranged perpendicular to each other. This meshing method is prone to loosening during high-intensity operation, making it difficult to adapt to high-output operation and unsuitable for some high-power massage devices.

[0007] In view of this, the inventors propose the following technical solutions. Utility model content:

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a telescopic swing mechanism.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions: a telescopic and swinging mechanism, comprising: a shell, a cavity formed inside the shell; a first gear box, which is installed in the cavity in the shell; the output shaft of the first gear box is respectively provided with telescopic clutch teeth and rocking clutch teeth, and also includes: a rotating cylinder, which is arranged in the cavity in the shell and can engage with the telescopic clutch teeth, and the rotating cylinder is driven by the first gear box and rotates with the output shaft of the first gear box as the rotation center axis; a telescopic cylinder, the telescopic cylinder is sleeved on the upper end of the shell and can be driven by the rotating cylinder to rotate and telescope; a transmission member, one end of which can engage with the rocking transmission teeth, and the other end of which extends upward from the rotating cylinder; a rocking rod, which is sleeved on the upper end of the transmission member and rotates and swings with the transmission rod as the rotation center axis.

[0010] Furthermore, in the above technical solution, a guide groove is provided at the upper end portion of the shell, and a convex strip is formed on the inner wall of the telescopic cylinder for matching with the guide groove for sliding and telescoping.

[0011] Furthermore, in the above technical solution, a ring-shaped and obliquely distributed spiral groove is provided around the rotating cylinder, and a rotating ball bracket is fixed on one side of the telescopic cylinder. A spherical rotating ball that matches the spiral groove is provided in the rotating ball bracket. When the rotating cylinder rotates, the spiral groove drives the rotating ball and drives the rotating ball bracket to make the telescopic cylinder extend and retract.

[0012] Furthermore, in the above technical solution, a groove is provided on the side wall of the transmission part, and a magnet is arranged in the groove; the side wall of the telescopic cylinder is provided with a sensor for matching with the magnet. When the telescopic cylinder is extended, the sensor and the magnet induce each other to make the extension amplitude of the telescopic cylinder consistent.

[0013] Furthermore, in the above technical solution, the rocking arm includes an integrally formed connecting section and a bending section, wherein the connecting section is sleeved on the transmission member, and the rocking arm rotates with the connecting section as the central axis of rotation, and drives the bending section to rotate and swing.

[0014] Furthermore, in the above technical solution, a first ball head component and a second ball head component are provided on the bending section of the rocking arm, and a telescopic cylinder ball groove is formed on the upper end surface of the telescopic cylinder for limiting the first ball head component and the second ball head component. The first ball head component and the second ball head component are fixed together and a ball head groove is formed on the upper end.

[0015] Furthermore, in the above technical solution, the upper ends of the first ball head member and the second ball head member are connected to a swinging cylinder through a pin, and a second gear box is provided in the swinging cylinder for driving the swinging cylinder to swing. A swinging eccentric wheel is provided on the output shaft of the second gear box, and the swinging eccentric wheel is engaged with the ball head groove. When the swinging eccentric wheel runs, it drives the swinging cylinder to swing.

[0016] Furthermore, in the above technical solution, a limit screw is spirally installed on the output shaft of the first gear box for axially limiting the rocking clutch teeth and the telescopic clutch teeth on the output shaft of the first gear box, and a shock-absorbing pad is also provided between the telescopic clutch teeth and the first gear box to reduce mechanical vibration inside the equipment.

[0017] Furthermore, in the above technical solution, a fixing sleeve for positioning the rocking arm is further provided on the inner wall of the rotating cylinder.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: In the present invention, the first tooth box drives the rotating cylinder and the rocking arm to rotate respectively through the telescopic clutch teeth and the swing clutch teeth. When the first tooth box rotates in the clockwise direction, the telescopic clutch teeth engage with the rotating cylinder, the rotating beads engage in the spiral grooves, and drive the telescopic cylinder to extend and retract. The rocking clutch teeth are disengaged from the transmission member, and the transmission member does not move. At the same time, the Hall effect sensor and the magnet sense the rocking arm, so that the rocking arm is in a set position to ensure that the position of the rocking arm remains unchanged during extension and retraction. When the first tooth box rotates in the counterclockwise direction, the rocking clutch teeth engage with the transmission member, and the transmission member drives the rocking arm to swing. Compared with the existing structure, which only realizes one mode of movement, namely, telescopic movement, the present invention realizes both telescopic movement and rocking movement within a limited space, and has high transmission efficiency, making it suitable for various handheld massage devices. Description of the drawings:

[0019] Figure 1 It is a left side sectional view of the utility model;

[0020] Figure 2 yes Figure 1 Enlarged view at point A;

[0021] Figure 3 It is an exploded schematic diagram of the utility model;

[0022] Figure 4 This is a sectional view of the use state of the utility model Figure 1 ;

[0023] Figure 5 This is a sectional view of the use state of the utility model Figure 2 . Specific implementation method:

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0025] See Figures 1 to 5As shown, a telescopic and swinging mechanism comprises: a shell 1, a cavity is formed inside the shell 1; a first tooth box 2, which is installed in the cavity in the shell 1; a telescopic clutch tooth 21 and a rocking clutch tooth 22 are respectively sleeved on the output shaft of the first tooth box 2, and further comprises: a rotating cylinder 3, which is arranged in the cavity in the shell 1 and can engage with the telescopic clutch tooth 21, and the rotating cylinder 3 is driven by the first tooth box 2 and rotates with the output shaft of the first tooth box 2 as the rotation center axis; a telescopic cylinder 4, the telescopic cylinder 4 is sleeved on the upper end of the shell 1 and can be driven by the rotating cylinder 3 to rotate and telescope; a transmission member 5, one end of which can engage with the rocking clutch tooth 22, and the other end of which extends upward from the rotating cylinder 3; a rocking arm 6, which is sleeved on the upper end of the transmission member 5 and rotates and swings with the transmission member 5 as the rotation center axis.

[0026] In the present invention, when the output shaft of the first gear box 2 rotates in the clockwise direction, the telescopic clutch tooth 21 engages with the rotating cylinder 3 and causes the telescopic cylinder 4 to rotate and retract; when the output shaft of the first gear box 2 rotates in the counterclockwise direction, the rocking clutch tooth 22 engages with the transmission member 5 and causes the rocking arm 6 to rotate and swing.

[0027] A guide groove 11 is formed at the upper end of the housing 1 , and a convex strip 41 is formed on the inner wall of the telescopic cylinder 4 for matching with the guide groove 11 for sliding and telescoping.

[0028] In this embodiment, the rotating cylinder 3 is provided with a spiral groove 300 in a ring shape and obliquely distributed around it, and a rotating ball bracket 400 is fixed to one side of the telescopic cylinder 4. The rotating ball bracket 400 is provided with a spherical rotating ball 401 that matches the spiral groove 300. When the rotating cylinder 3 rotates, the spiral groove 300 drives the rotating ball 401 and drives the rotating ball bracket 400 to drive the telescopic cylinder 4 to extend and retract.

[0029] A groove 501 is provided on the side wall of the transmission member 5, and a magnet 502 is provided in the groove 501; the side wall of the telescopic cylinder 4 is provided with a sensor 402 for matching with the magnet 502. When the telescopic cylinder 4 is extended, the sensor 402 and the magnet 502 induce each other, so that the extension amplitude of the telescopic cylinder 4 is consistent.

[0030] The rocking arm 6 includes an integrally formed connecting section 601 and a bending section 602 , wherein the connecting section 601 is sleeved on the transmission member 5 , and the rocking arm 6 rotates with the connecting section 601 as the central axis of rotation, and drives the bending section 602 to rotate and swing.

[0031] In addition, Figure 4 and Figure 5As shown, the present invention can further connect a swing cylinder 8 and a second gear box 81 to the end of the swing arm 6, and the second gear box 81 drives the swing cylinder 8 to swing left and right. Specifically, the bending section 602 of the swing arm 6 is provided with a first ball head 61 and a second ball head 62. The upper end surface of the telescopic cylinder 4 is formed with a telescopic cylinder ball groove 403 for limiting the first ball head 61 and the second ball head 62. The first ball head 61 and the second ball head 62 are fixed as a whole and a ball head groove 603 is formed at the upper end. The upper ends of the first ball head 61 and the second ball head 62 are connected to a swing cylinder 8 through a pin 7. The swing cylinder 8 is provided with a second gear box 81 for driving the swing cylinder 8 to swing. The output shaft of the second gear box 81 is provided with a swing eccentric wheel 82, and the swing eccentric wheel 82 engages with the ball head groove 603. When the swing eccentric wheel 82 rotates, it drives the swing cylinder 8 to swing.

[0032] When the first gear box 2 runs in the clockwise direction, the telescopic clutch tooth 21 is engaged with the rotating cylinder 3, the rotating ball 401 is engaged in the spiral groove 300 and drives the telescopic cylinder 4 to extend and retract, and the rocking clutch tooth 22 is in a disengaged state from the transmission member 5, and the transmission member 5 does not move. At the same time, the Hall sensor and the magnet are inductively coupled to keep the rocking arm 6 in the set position to ensure that the position of the rocking arm 6 remains unchanged during extension and retraction; when the first gear box 2 rotates in the counterclockwise direction, the rocking clutch tooth 22 is in an engaged state with the transmission member 5, and the transmission member 5 drives the rocking arm 6 to swing, and the ball head member holds the rocking arm 6 to prevent the rocking arm 6 from deviating from the motion trajectory.

[0033] A limit screw 23 is spirally installed on the output shaft of the first gear box 2 for axially limiting the rocking clutch tooth 22 and the telescopic clutch tooth 21 on the output shaft of the first gear box 2, and a shock-absorbing pad 24 is also provided between the telescopic clutch tooth 21 and the first gear box 2 to reduce mechanical vibration inside the equipment.

[0034] A fixing sleeve 10 for positioning the rocking arm 6 is also provided on the inner wall of the rotating cylinder 3 .

[0035] In summary, in the present invention, the first tooth box 2 drives the rotating cylinder 3 and the rocking arm 6 to rotate via the telescopic clutch teeth 21 and the rocking clutch teeth 22, respectively. When the first tooth box 2 rotates clockwise, the telescopic clutch teeth 21 engage with the rotating cylinder 3, the rotating ball 401 engages with the spiral groove 300, and drives the telescopic cylinder 4 to extend and retract. The rocking clutch teeth 22 are disengaged from the transmission member 5, and the transmission member 5 does not move. At the same time, the Hall effect sensor and the magnet sense the rocking arm 6, keeping it in a set position to ensure that the position of the rocking arm 6 remains unchanged during extension and retraction. When the first tooth box 2 rotates counterclockwise, the rocking clutch teeth 22 engage with the transmission member 5, and the transmission member 5 drives the rocking arm 6 to swing. Existing structures only implement one mode of movement, namely, telescopic movement. Compared with existing structures, the present invention implements both telescopic movement and rocking movement within a limited space, and has high transmission efficiency, making it suitable for various handheld massage devices.

[0036] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A telescopic swing mechanism, comprising: A housing (1), wherein a cavity is formed inside the housing (1); a first tooth box (2) mounted in a cavity within the housing (1); It is characterized by: The output shaft of the first gear box (2) is respectively sleeved with a telescopic clutch tooth (21) and a swing clutch tooth (22), and further comprises: a rotating cylinder (3) which is arranged in a cavity in the housing (1) and can engage with the telescopic clutch tooth (21), and the rotating cylinder (3) is driven by the first gear box (2) and rotates with the output shaft of the first gear box (2) as a rotation center axis; A telescopic cylinder (4) is sleeved on the upper end of the housing (1) and can be driven by the rotating cylinder (3) to rotate and telescope; A transmission member (5), one end of which engages with the swing clutch tooth (22) and the other end of which extends upward from the rotating cylinder (3); The rocking arm (6) is sleeved on the upper end of the transmission member (5) and rotates and swings with the transmission member (5) as the rotation center axis.

2. The telescopic swing mechanism according to claim 1, characterized in that: A guide groove (11) is provided at the upper end of the shell (1), and a convex strip (41) is formed on the inner wall of the telescopic cylinder (4) for matching with the guide groove (11) to slide and telescope.

3. The telescopic swing mechanism according to claim 1, characterized in that: The rotating cylinder (3) is provided with a spiral groove (300) in an annular shape and distributed obliquely. A rotating ball bracket (400) is fixed to one side of the telescopic cylinder (4). A rotating ball (401) in a spherical shape and matching the spiral groove (300) is provided in the rotating ball bracket (400). When the rotating cylinder (3) rotates, the spiral groove (300) drives the rotating ball (401) and the rotating ball bracket (400) to cause the telescopic cylinder (4) to extend and retract.

4. The telescopic swing mechanism according to claim 1, characterized in that: A groove (501) is provided on the side wall of the transmission member (5), and a magnet (502) is provided in the groove (501); a sensor (402) for matching with the magnet (502) is provided on the side wall of the telescopic cylinder (4); when the telescopic cylinder (4) is extended, the sensor (402) and the magnet (502) are inductively coupled to each other, so that the extension amplitude of the telescopic cylinder (4) is consistent.

5. The telescopic swing mechanism according to claim 1, characterized in that: The rocking arm (6) includes an integrally formed connecting section (601) and a bending section (602), wherein the connecting section (601) is sleeved on the transmission member (5), and the rocking arm (6) rotates with the connecting section (601) as the central axis of rotation, and drives the bending section (602) to rotate and swing.

6. The telescopic swing mechanism according to claim 5, characterized in that: A first ball head component (61) and a second ball head component (62) are provided on the bending section (602) of the rocking arm (6); a telescopic cylinder ball groove (403) for limiting the first ball head component (61) and the second ball head component (62) is formed on the upper end surface of the telescopic cylinder (4); the first ball head component (61) and the second ball head component (62) are fixed as a whole and a ball head groove (603) is formed at the upper end.

7. The telescopic swing mechanism according to claim 6, characterized in that: The upper ends of the first ball head member (61) and the second ball head member (62) are connected to a swing cylinder (8) via a latch (7). The swing cylinder (8) is provided with a second tooth box (81) for driving the swing cylinder (8) to swing. The output shaft of the second tooth box (81) is provided with a swing eccentric wheel (82), and the swing eccentric wheel (82) engages with the ball head groove (603). When the swing eccentric wheel (82) operates, the swing cylinder (8) is driven to swing.

8. The telescopic swing mechanism according to any one of claims 1 to 7, characterized in that: A limit screw (23) is spirally mounted on the output shaft of the first gear box (2) for axially limiting the swing clutch tooth (22) and the telescopic clutch tooth (21) on the output shaft of the first gear box (2), and a shock-absorbing pad (24) is also provided between the telescopic clutch tooth (21) and the first gear box (2) for reducing mechanical vibration inside the device.

9. The telescopic swing mechanism according to any one of claims 1 to 7, characterized in that: A fixing sleeve (10) for positioning the rocking arm (6) is also provided on the inner wall of the rotating cylinder (3).

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