Bent telescopic rotating device

Abstract

The utility model discloses a bent telescopic rotating device which comprises a shell, a driving assembly and a movable assembly, the shell comprises a first outer shell, a second outer shell fixed with the first outer shell and a guide inclined cylinder clamped and fixed through the first outer shell and the second outer shell, the movable component is arranged in the guide inclined cylinder in a telescopic and rotary manner; the driving assembly comprises a driving element, a gearbox assembly arranged on the driving element and an eccentric wheel connected to the output end of the gearbox assembly. A transmission mechanism is arranged between the driving assembly and the movable assembly and comprises a first transmission assembly arranged on the eccentric wheel and a second transmission assembly connected to the movable assembly and hinged to the first transmission assembly, and the first transmission assembly is perpendicular to or inclined to the driving assembly. Compared with an existing structure, the second transmission assembly is of a structure with at least two sections capable of being bent, and effective transmission in a bent space can be achieved.

Description

Technical field:

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

[0002] Massage devices are primarily used to treat muscle tension and fatigue by relaxing the body's soft tissues through high-frequency impacts.

[0003] In principle, most massage devices mainly use a specially designed high-speed motor inside to drive the massage head through a special transmission mechanism, moving it back and forth at a high strike rate per minute. The force exerted on the tissue through high-frequency vibration transmits the pressure layer by layer to the fat, superficial fascia, deep fascia, and muscles.

[0004] However, currently, massage equipment 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 announcement 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 on the bearing seat through a bearing, the bearing seat is fixed on 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 scheme, 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 avoid the vibration generated by the massage mechanism from being transmitted to the motor, and effectively prevent the motor from being damaged.

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

[0006] In this technical solution, the first bevel gear and the second bevel gear are meshed with each other for transmission, thereby driving the massage rod to perform telescopic movement. However, the massage rod can only perform telescopic movement, and cannot perform rotational movement while performing telescopic movement. In addition, although the use of a bevel gear set can reduce vibration, it also makes the telescopic range of the massage head relatively narrow, and the corresponding massage force is also reduced. In addition, the first bevel gear and the second bevel gear are arranged perpendicular to each other. Such a meshing method is often prone to loosening, and it is difficult to adapt to high-output operation. It is not suitable for some high-power massage equipment.

[0007] In view of this, the inventor proposes the following technical solution. Utility model content:

[0008] The utility model aims to overcome the deficiencies of the prior art and provide a curved telescopic rotating device.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions: the curved telescopic rotating device includes a shell, a driving component arranged in the shell, and a movable component arranged in the shell and driven by the driving component, the shell includes a first shell, a second shell fixed to the first shell, and a guide inclined cylinder clamped and fixed by the first shell and the second shell, the movable component is arranged in the guide inclined cylinder in a telescopic and rotatable manner; the driving component includes a driving element, a tooth box component arranged on the driving element, and an eccentric wheel connected to the output end of the tooth box component; a transmission mechanism is arranged between the driving component and the movable component, the transmission mechanism includes a first transmission component arranged on the eccentric wheel and a second transmission component connected to the movable component and hinged to the first transmission component, and the first transmission component is perpendicular or inclined to the driving component; the movable component includes a fixed part connected to the second transmission component and a rotating part rotatably arranged on the fixed part.

[0010] Furthermore, in the above technical solution, a pivot shaft is formed on the fixed part, a guide device for rotating the rotating part with the pivot shaft as the rotation center axis is provided on the guide inclined cylinder, and a spiral groove matching the guide device is formed around the rotating part.

[0011] Furthermore, in the above technical solution, a bearing is provided on the pivot shaft in an interference fit manner, and a pivot groove matching the bearing is formed on the rotating member.

[0012] Furthermore, in the above technical solution, the guide device includes a positioning frame arranged on the guide inclined cylinder and a guide block fixed on the guide inclined cylinder through the positioning frame and matching with the spiral groove. A positioning groove for limiting the guide block is formed at the end of the guide inclined cylinder. A protrusion for matching and engaging with the positioning groove is formed around the guide block. The positioning frame is formed with a pressing portion matching with the positioning groove. The positioning frame is also formed with a through hole for allowing the rotating part to extend outward.

[0013] Furthermore, in the above technical solution, the eccentric wheel is formed with a connecting portion protruding outward, and a connecting groove is provided on the connecting portion; the first transmission assembly includes a connecting rod and a connecting rod pin, and the connecting rod is respectively formed with a first hinge portion and a second hinge portion, wherein the connecting rod pin passes through the first hinge portion and is inserted into the connecting groove to connect the connecting rod and the connecting portion.

[0014] Furthermore, in the above technical solution, the second transmission assembly is a structure with at least two bendable sections, and the second transmission assembly includes a first guide rod connected to the connecting rod, a third guide rod connected to the fixing member, and a second guide rod respectively connected between the first guide rod and the third guide rod, wherein the first guide rod is respectively provided with a third hinge part and a fourth hinge part, the second guide rod is respectively provided with a fifth hinge part and a sixth hinge part, the third guide rod is respectively provided with a seventh hinge part and an eighth hinge part, and the fixing member is provided with a ninth hinge part, and correspondingly, the second hinge part and the third hinge part are provided with a first guide rod shaft, the fourth hinge part and the fifth hinge part are provided with a second guide rod shaft, the sixth hinge part and the seventh hinge part are provided with a third guide rod shaft, and the eighth hinge part and the ninth hinge part are provided with a fourth guide rod shaft.

[0015] Furthermore, in the above technical solution, the gear box assembly includes: a torque converter arranged at the output end of the driving element, a pressure pump connected to the torque converter, a first reduction gear arranged on the pressure pump, and a second reduction gear meshing with the first reduction gear, and the eccentric wheel is arranged on the second reduction gear.

[0016] Furthermore, in the above technical solution, a polygonal rod is provided on the second reduction gear, and the longitudinal section of the polygonal rod is a polygon; a polygonal groove for matching and installing with the polygonal rod is formed on the eccentric wheel.

[0017] Furthermore, in the above technical solution, a flange is formed on the guide inclined cylinder, and a first groove and a second groove for limiting the flange are respectively formed on the first shell and the second shell.

[0018] Furthermore, in the above technical solution, a positioning protrusion for limiting the driving element is formed in the first shell, and a latch matching the positioning protrusion is formed on the driving element.

[0019] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: in the utility model, the driving component drives the movable component to perform telescopic movement through the transmission mechanism, and the rotating part in the movable component is also affected by the guide device to perform rotational movement while performing telescopic movement, thereby realizing the reciprocating rotational movement of the rotating part. In addition, the utility model avoids the use of bevel gear group transmission, but adopts the eccentric wheel and the transmission mechanism to cooperate, which is more stable and has a relatively larger telescopic range than the prior art. In addition, compared with the existing structure, the second transmission component of the utility model is a structure with at least two bendable sections, which can realize effective transmission in a curved space and is suitable for various handheld massage devices. Description of the drawings:

[0020] Figure 1It is a schematic diagram of the decomposed state of the utility model;

[0021] Figure 2 yes Figure 1 An enlarged schematic diagram at A;

[0022] Figure 3 yes Figure 1 An enlarged schematic diagram at B;

[0023] Figure 4 It is a schematic diagram of the external structure of the utility model;

[0024] Figure 5 It is a cross-sectional view of the utility model;

[0025] Figure 6 It is an enlarged view of the utility model at C;

[0026] Figure 7 It is a schematic diagram of the exploded state of the driving component in the utility model. Specific implementation method:

[0027] The utility model is further described below in conjunction with specific embodiments and drawings.

[0028] See Figures 1 to 7 As shown, a curved telescopic rotating device comprises: a housing 1, a driving assembly 2 disposed in the housing 1, and a movable assembly 3 disposed in the housing 1 and driven by the driving assembly 2, characterized in that:

[0029] The housing 1 includes a first housing 11, a second housing 12 fixed to the first housing 11, and a guide inclined cylinder 13 clamped and fixed by the first housing 11 and the second housing 12, and the movable component 3 is arranged in the guide inclined cylinder 13 in a telescopic and rotatable manner;

[0030] The driving assembly 2 includes a driving element 20, a gear box assembly 21 disposed on the driving element 20, and an eccentric wheel 22 connected to the output end of the gear box assembly 21;

[0031] A transmission mechanism 4 is provided between the driving assembly 2 and the movable assembly 3, and the transmission mechanism 4 includes a first transmission assembly 41 provided on the eccentric wheel 22 and a second transmission assembly 42 connected to the movable assembly 3 and hinged to the first transmission assembly 41, and the first transmission assembly 41 is perpendicular or inclined to the driving assembly 2;

[0032] The movable component 3 includes a fixed component 31 connected to the second transmission component 42 and a rotating component 32 rotatably disposed on the fixed component 31 .

[0033] The fixing member 31 is formed with a pivot shaft 310, and the guide inclined cylinder 13 is provided with a guide device 5 for rotating the rotating member 32 with the pivot shaft 310 as the rotation center axis, and the rotating member 32 is formed with a spiral groove 320 matching the guide device 5. In addition, in the utility model, a massage head can be provided at one end of the rotating member 32 extending outward.

[0034] In the utility model, the eccentric wheel 22 is hinged with the first transmission assembly 41 in the transmission mechanism 4 for transmission. Specifically, the driving element 20 drives the eccentric wheel 22 to rotate after deceleration through the gear box assembly 21, and drives the first transmission assembly 41. The first transmission assembly 41 is further transmitted to the second transmission assembly 42, and then the second transmission assembly 42 is transmitted to the movable assembly 3 and drives the movable assembly 3 to extend and retract back and forth along the inner cavity of the guide inclined cylinder 13. At the same time, the guide device 5 generates a force on the rotating member 32 in the movable assembly 3, so that the rotating member 32 can rotate while extending and retracting, so as to adapt to more usage scenarios.

[0035] A bearing 6 is provided on the pivot shaft 310 in an interference fit manner, and a pivot groove 321 matching the bearing 6 is formed on the rotating member 32. The provision of a bearing 6 between the pivot shaft 310 of the fixed member 31 and the rotating member 32 can ensure that the rotating member 32 rotates smoothly during rotation, so that the device can run smoothly at high speed without setbacks.

[0036] See Figure 1 As shown, the guide device 5 includes a positioning frame 51 arranged on the guide inclined cylinder 13 and a guide block 50 fixed to the guide inclined cylinder 13 through the positioning frame 51 and matching with the spiral groove 320. The end of the guide inclined cylinder 13 is provided with a positioning groove 121 for limiting the guide block 50. The guide block 50 is formed with a protrusion that matches and engages with the positioning groove 121. The positioning frame 51 is formed with a pressing portion 511 that matches with the positioning groove 121. The positioning frame 51 is also formed with a through hole 510 for the rotating member 32 to extend outward.

[0037] Specifically, the positioning frame 51 and the positioning groove 121 of the guide inclined cylinder 13 jointly clamp the guide block 50, and the guide block 50 extends a protruding tooth 55 into the guide inclined cylinder 13, and the protruding tooth 55 is inclined and acts on the spiral groove 320. When the rotating member 32 is driven to perform telescopic movement, the guide block 50 will generate a circumferential force on the rotating member 32 through the spiral groove 320, so that the rotating member 32 rotates with the pivot shaft 310 as the rotation center axis.

[0038] See Figure 1 and Figure 2As shown, the eccentric wheel 22 is formed with a connecting portion 220 protruding outward, and a connecting groove 230 is formed on the connecting portion 220; the first transmission assembly 41 includes a connecting rod 410 and a connecting rod pin 420, and the connecting rod 410 is respectively formed with a first hinge portion 91 and a second hinge portion 92, wherein the connecting rod pin 420 passes through the first hinge portion 91 and is inserted into the connecting groove 230, so that the connecting rod 410 is connected to the connecting portion 220.

[0039] The second transmission assembly 42 is a structure with at least two bendable sections, and the second transmission assembly 42 includes a first guide rod 401 connected to the connecting rod 410, a third guide rod 403 connected to the fixing member 31, and a second guide rod 402 respectively connected between the first guide rod 401 and the third guide rod 403, wherein the first guide rod 401 is respectively provided with a third hinge portion 93 and a fourth hinge portion 94, and the second guide rod 402 is respectively provided with a fifth hinge portion 95 and a sixth hinge portion 96, a seventh hinge part 97 and an eighth hinge part 98 are respectively provided on the third guide rod 403, and a ninth hinge part 99 is provided on the fixing member 31. Correspondingly, the second hinge part 92 and the third hinge part 93 are penetrated by a first guide rod shaft 81, the fourth hinge part 94 and the fifth hinge part 95 are penetrated by a second guide rod shaft 82, the sixth hinge part 96 and the seventh hinge part 97 are penetrated by a third guide rod shaft 83, and the eighth hinge part 98 and the ninth hinge part 99 are penetrated by a fourth guide rod shaft 84.

[0040] See Figure 7 As shown, the gear box assembly 21 includes: a torque converter 211 arranged at the output end of the driving element 20, a pressure pump 212 connected to the torque converter 211, a first reduction gear 213 arranged on the pressure pump 212, and a second reduction gear 214 meshing with the first reduction gear 213, and the eccentric wheel 22 is arranged on the second reduction gear 214. A polygonal rod 215 is arranged on the second reduction gear 214, and the longitudinal section of the polygonal rod 215 is polygonal; a polygonal groove 223 for matching and installing with the polygonal rod 215 is formed on the eccentric wheel 22. In addition, the eccentric wheel 22 is also equipped with a limit bolt 260 for axially limiting the eccentric wheel 22.

[0041] The guide inclined cylinder 13 is formed with a flange 123, and the first shell 11 and the second shell 12 are respectively formed with a first groove 1201 and a second groove 1202 for limiting the flange 123. When the first shell 11 and the second shell 12 are assembled, the flange 123 of the guide inclined cylinder 13 can be engaged and limited by the cooperation of the first groove 1201 and the second groove 1202. In addition, the first shell 11 is also formed with a first clamping protrusion 110, and correspondingly, the flange 123 is correspondingly provided with an avoidance opening 124. When assembled, the first clamping protrusion 110 is correspondingly engaged in the avoidance opening 124 to limit the circumferential position of the guide inclined cylinder 13.

[0042] See Figure 1 As shown, a positioning protrusion 113 for limiting the driving element 20 is formed in the first housing 11 , and a locking position 240 matching the positioning protrusion 113 is formed on the driving element 20 .

[0043] In summary, in the present invention, the driving assembly 2 drives the movable assembly 3 to perform telescopic movement through the transmission mechanism 4, and the rotating member 32 in the movable assembly 3 is also affected by the guide device 5 to perform rotational movement while performing telescopic movement, thereby realizing the reciprocating rotational movement of the rotating member 32. In addition, the present invention avoids the use of a bevel gear set for transmission, but instead uses an eccentric wheel 22 to cooperate with the transmission mechanism 4. Compared with the prior art, the assembly is more stable and the telescopic range is relatively larger. In addition, compared with the prior art structure, the second transmission assembly 42 of the present invention is a structure with at least two bendable sections, which can realize effective transmission in a curved space and is suitable for various handheld massage devices.

[0044] 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 according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A curved telescopic rotating device, comprising: A housing (1), a driving assembly (2) disposed in the housing (1), and a movable assembly (3) disposed in the housing (1) and driven by the driving assembly (2), characterized in that: The housing (1) comprises a first housing (11), a second housing (12) fixed to the first housing (11), and a guide inclined cylinder (13) clamped and fixed by the first housing (11) and the second housing (12); the movable component (3) is arranged in the guide inclined cylinder (13) in a telescopic and rotatable manner; The driving assembly (2) comprises a driving element (20), a gear box assembly (21) arranged on the driving element (20), and an eccentric wheel (22) connected to the output end of the gear box assembly (21); A transmission mechanism (4) is arranged between the driving assembly (2) and the movable assembly (3), the transmission mechanism (4) comprising a first transmission assembly (41) arranged on the eccentric wheel (22) and a second transmission assembly (42) connected to the movable assembly (3) and hinged to the first transmission assembly (41), and the first transmission assembly (41) is perpendicular or inclined to the driving assembly (2); The movable component (3) comprises a fixed component (31) connected to the second transmission component (42) and a rotating component (32) rotatably arranged on the fixed component (31).

2. A curved telescopic rotating device according to claim 1, characterized in that: A pivot shaft (310) is formed on the fixed member (31), and a guide device (5) is provided on the guide inclined cylinder (13) for causing the rotating member (32) to rotate with the pivot shaft (310) as the rotation center axis. A spiral groove (320) matching the guide device (5) is formed around the rotating member (32).

3. A curved telescopic rotating device according to claim 2, characterized in that: A bearing (6) is arranged on the pivot shaft (310) in an interference fit manner, and a pivot groove (321) matching the bearing (6) is formed on the rotating member (32).

4. A curved telescopic rotating device according to claim 2, characterized in that: The guide device (5) comprises a positioning frame (51) arranged on the guide inclined cylinder (13) and a guide block (50) fixed to the guide inclined cylinder (13) through the positioning frame (51) and matched with the spiral groove (320); a positioning groove (121) for limiting the guide block (50) is formed at the end of the guide inclined cylinder (13); a protrusion (52) for matching and engaging with the positioning groove (121) is formed around the guide block (50); a pressing portion (511) matching with the positioning groove (121) is formed on the positioning frame (51); and a through hole (510) for allowing the rotating member (32) to extend outward is also formed on the positioning frame (51).

5. A curved telescopic rotating device according to claim 2, characterized in that: The eccentric wheel (22) is formed with a connecting portion (220) protruding outward, and a connecting groove (230) is provided on the connecting portion (220); the first transmission assembly (41) includes a connecting rod (410) and a connecting rod pin (420), and the connecting rod (410) is respectively formed with a first hinge portion (91) and a second hinge portion (92), wherein the connecting rod pin (420) passes through the first hinge portion (91) and is inserted into the connecting groove (230), so that the connecting rod (410) is connected to the connecting portion (220).

6. A curved telescopic rotating device according to claim 5, characterized in that: The second transmission assembly (42) is a structure with at least two bendable sections, and comprises a first guide rod (401) connected to the connecting rod (410), a third guide rod (403) connected to the fixing member (31), and a second guide rod (402) respectively connected between the first guide rod (401) and the third guide rod (403), wherein the first guide rod (401) is respectively provided with a third hinge part (93) and a fourth hinge part (94), and the second guide rod (402) is respectively provided with a fifth hinge part (95) and a sixth hinge part (96). The third guide rod (403) is respectively provided with a seventh hinge part (97) and an eighth hinge part (98), and the fixing member (31) is provided with a ninth hinge part (99). Correspondingly, the second hinge part (92) and the third hinge part (93) are provided with a first guide rod shaft (81), the fourth hinge part (94) and the fifth hinge part (95) are provided with a second guide rod shaft (82), the sixth hinge part (96) and the seventh hinge part (97) are provided with a third guide rod shaft (83), and the eighth hinge part (98) and the ninth hinge part (99) are provided with a fourth guide rod shaft (84).

7. A curved telescopic rotating device according to any one of claims 1 to 6, characterized in that: The gear box assembly (21) comprises: a torque converter (211) arranged at the output end of the driving element (20), a pressure pump (212) connected to the torque converter (211), a first reduction gear (213) arranged on the pressure pump (212), and a second reduction gear (214) meshing with the first reduction gear (213), and the eccentric wheel (22) is arranged on the second reduction gear (214).

8. A curved telescopic rotating device according to claim 7, characterized in that: The second reduction gear (214) is provided with a polygonal rod (215), and the longitudinal section of the polygonal rod (215) is polygonal; the eccentric wheel (22) is formed with a polygonal groove (223) for matching and installing with the polygonal rod (215).

9. A curved telescopic rotating device according to any one of claims 1 to 6, characterized in that: A flange (123) is formed on the guide inclined cylinder (13), and a first groove (1201) and a second groove (1202) for limiting the flange (123) are respectively formed on the first shell (11) and the second shell (12).

10. A curved telescopic rotating device according to any one of claims 1 to 6, characterized in that: A positioning protrusion (113) for limiting the position of the driving element (20) is formed in the first housing (11), and a locking position (240) matching the positioning protrusion (113) is formed on the driving element (20).

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