Novel swing arm assembly

Abstract

The utility model discloses a novel swing arm assembly which comprises a main shell, a driving motor and a movable swing arm, a shell containing cavity is formed in the main shell, and the driving motor is installed in the shell containing cavity in a fastened mode. The movable swing arm is rotationally installed at the front end of the main shell, the outer end of the movable swing arm extends to the outer side of the main shell, and the inner end of the movable swing arm extends into the shell containing cavity. A swing arm driving mechanism is arranged in the shell containing cavity and comprises a shaft seat and a driving rotating shaft rotationally installed in the shaft seat, the driving rotating shaft is driven by a driving motor, and a spiral groove is formed in the outer circumferential face of the driving rotating shaft. The periphery of the shaft seat is sleeved with a telescopic sliding sleeve in a telescopic sliding mode, the front end of the telescopic sliding sleeve is connected with the inner end of the movable swing arm, a spherical groove is formed in the inner wall of the telescopic sliding sleeve, a ball is embedded in the spherical groove, and part of the ball extends into the spiral groove of the driving rotating shaft. By means of the structural design, the device has the advantages of being novel in design and good in structural compactness.

Description

Technical Field

[0001] The utility model relates to the technical field of massage devices, in particular to a new swing arm assembly. Background Art

[0002] The patent number is: ZL202322098776.9, and the patent name is: A Chinese utility model patent for a pressing and vibrating massage movement, which specifically discloses the following technical solutions: A pressing and vibrating massage movement, including a casing, a motor installed in the casing, the motor driving a connected transmission assembly, and a pressing and massage assembly is installed on the transmission assembly; the motor is provided with an output bevel gear, the transmission assembly includes a transmission main shaft, a driven bevel gear is fixedly installed on the transmission main shaft, and the driven bevel gear is meshed with the output bevel gear; a bevel wheel is installed on the transmission main shaft, the bevel wheel includes a wheel body, the wheel body is integrally arranged on a bevel disk, and the bevel disk is integrally connected to a baffle plate; the pressing and massage assembly includes a swing arm, the swing arm is provided with a movable hole, and the movable hole is movably fitted with the wheel body.

[0003] When the above-mentioned pressing and vibrating massage movement swings its arm, the motor drives the transmission main shaft to rotate through the gear transmission pair composed of the output bevel gear and the driven bevel gear. The transmission main shaft then drives the bevel wheel to rotate, and the bevel wheel then drives the swing arm to swing through the wheel body.

[0004] It should be pointed out that the swing arm assembly in the above-mentioned pressing and vibrating massage movement has the following defects. Specifically, since the motor needs to drive the transmission main shaft to rotate through a gear transmission pair composed of an output bevel gear and a driven bevel gear, and the transmission main shaft then drives the swing arm to swing through a bevel wheel, the structure of the entire swing arm assembly is not compact. Utility Model Content

[0005] The purpose of the utility model is to provide a new swing arm assembly to address the deficiencies of the prior art. The new swing arm assembly has a novel design and a compact structure.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions.

[0007] A novel swing arm assembly includes a main housing, a drive motor, and a movable swing arm. A housing accommodating cavity is formed inside the main housing, and the drive motor is securely mounted in the housing accommodating cavity.

[0008] The movable swing arm is rotatably mounted on the front end of the main housing, the outer end of the movable swing arm extends to the outside of the main housing, and the inner end of the movable swing arm extends into the housing cavity;

[0009] A swing arm drive mechanism is installed in the housing cavity, and the swing arm drive mechanism includes a shaft seat and a driving shaft rotatably installed inside the shaft seat. The driving shaft is driven by a driving motor, and a spiral groove is provided on the outer circumference of the driving shaft.

[0010] The outer periphery of the shaft seat is telescopically and slidably covered with a telescopic sleeve, the front end of the telescopic sleeve is connected to the inner end of the movable swing arm, the inner wall of the telescopic sleeve is provided with a spherical groove, the spherical groove is embedded with a ball, and part of the ball extends into the spiral groove of the drive shaft.

[0011] The side wall of the shaft seat is provided with a side wall notch, the telescopic sleeve is provided with a sleeve convex portion corresponding to the side wall notch of the shaft seat, and the sleeve convex portion of the telescopic sleeve is inserted into the side wall notch of the shaft seat;

[0012] An auxiliary block is screwed and fastened on the sleeve convex portion of the telescopic sleeve, and the spherical groove is formed by the sleeve convex portion and the auxiliary block.

[0013] The front end of the telescopic sleeve is provided with a driving rod portion protruding and extending forward, the inner end of the movable swing arm is provided with a driving groove, and the driving rod portion is slidably installed in the driving groove of the movable swing arm.

[0014] A reduction gearbox is also fixedly installed in the housing cavity of the shell, the input end of the reduction gearbox is connected to the power output shaft of the drive motor, the output end of the reduction gearbox is connected to the drive shaft, and the shaft seat is screwed and fixed to the housing of the reduction gearbox.

[0015] Wherein, the outer surface of the shaft seat is provided with a guide flange, the inner surface of the telescopic sliding sleeve is provided with a guide groove, and the guide flange is embedded in the guide groove.

[0016] The main housing includes a left housing and a right housing, and the housing accommodating cavity is formed by the left housing and the right housing.

[0017] A swing arm mounting hole is formed between the front end portion of the left shell and the front end portion of the right shell, and the middle portion of the movable swing arm is rotatably mounted in the swing arm mounting hole.

[0018] Wherein, a pivot portion is provided in the middle of the movable swing arm, and pivot holes are respectively opened in the left shell and the right shell, and the pivot portion of the movable swing arm is respectively inserted into the pivot holes of the left shell and the right shell.

[0019] Compared to the prior art, the present invention has the following advantages: Specifically, the drive shaft, shaft seat, and telescopic sleeve are sequentially connected from the inside out, and the drive shaft drives the telescopic sleeve to telescope and slide relative to the shaft seat via a ball bearing. Compared to the prior art, the present invention's new swing arm assembly is more compact. Therefore, the present invention's new swing arm assembly has the advantages of novel design and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 It is an exploded schematic diagram of the present utility model.

[0023] Figure 3 It is a cross-sectional schematic diagram of the present utility model.

[0024] Figure 4 for Figure 3 A partial enlarged schematic diagram.

[0025] Figure 5 It is a cross-sectional schematic diagram of another position of the utility model.

[0026] exist Figures 1 to 5 These include:

[0027] 1-main housing; 11-housing cavity; 12-left housing; 13-right housing; 14-swing arm mounting hole; 15-pivot hole; 2-drive motor; 3-movable swing arm; 31-drive slot; 32-pivot portion; 4-swing arm drive mechanism; 41-axle seat; 411-side wall notch; 412-guide flange; 42-drive shaft; 421-spiral groove; 43-telescopic sleeve; 431-spherical groove; 432-sleeve protrusion; 433-auxiliary block; 434-drive rod; 435-guide groove; 44-ball; 5-reduction gearbox. DETAILED DESCRIPTION

[0028] The present invention will be described below in conjunction with specific implementation methods.

[0029] Example 1, as Figures 1 to 5 As shown, a new swing arm assembly includes a main shell 1, a drive motor 2, and a movable swing arm 3. A shell accommodating cavity 11 is formed inside the main shell 1, and the drive motor 2 is firmly installed in the shell accommodating cavity 11.

[0030] Among them, such as Figures 1 to 3 As shown, the movable swing arm 3 is rotatably mounted on the front end of the main shell 1 , the outer end of the movable swing arm 3 extends to the outside of the main shell 1 , and the inner end of the movable swing arm 3 extends into the shell accommodating cavity 11 .

[0031] Further, such as Figures 2 to 5As shown, a swing arm drive mechanism 4 is installed in the shell accommodating cavity 11. The swing arm drive mechanism 4 includes a shaft seat 41 and a driving shaft 42 rotatably installed inside the shaft seat 41. The driving shaft 42 is driven by the driving motor 2. A spiral groove 421 is provided on the outer circumference of the driving shaft 42.

[0032] Furthermore, Figures 2 to 5 As shown, the outer periphery of the shaft seat 41 is telescopically and slidably covered with a telescopic sleeve 43, the front end of the telescopic sleeve 43 is connected to the inner end of the movable swing arm 3, and the inner wall of the telescopic sleeve 43 is provided with a spherical groove 431, the spherical groove 431 is embedded with a ball 44, and part of the ball 44 extends into the spiral groove 421 of the driving shaft 42.

[0033] During the operation of the new swing arm assembly of the first embodiment, the drive motor 2 is activated and the power output shaft of the drive motor 2 drives the drive shaft 42 to rotate. Since the balls 44 extend into the spiral groove 421 of the drive shaft 42 and the spherical groove 431 of the telescopic sleeve 43 respectively, and the telescopic sleeve 43 slides relative to the shaft seat 41, during the rotation of the drive shaft 42, the drive shaft 42 drives the telescopic sleeve 43 to slide relative to the shaft seat 41 through the balls 44; wherein, the sliding direction of the telescopic sleeve 43 is controlled by controlling the rotation direction of the drive motor 2 to realize the telescopic sliding of the telescopic sleeve 43 relative to the shaft seat 41. For example, when the drive motor 2 rotates forward, the telescopic sleeve 43 slides forward relative to the shaft seat 41; when the drive motor 2 rotates reversely, the telescopic sleeve 43 slides backward relative to the shaft seat 41; the telescopic sleeve 43 that telescopically slides relative to the shaft seat 41 drives the inner end portion of the movable swing arm 3, thereby causing the outer end portion of the movable swing arm 3 to rotate and swing.

[0034] It should be emphasized that the drive shaft 42, the shaft seat 41 and the telescopic sleeve 43 of the present embodiment are sequentially connected from the inside to the outside, and the drive shaft 42 drives the telescopic sleeve 43 to slide telescopically relative to the shaft seat 41 through the ball 44; compared with the prior art, the new swing arm assembly structure of the present embodiment is more compact.

[0035] In summary, it can be seen that, through the above structural design, the new swing arm assembly of the first embodiment has the advantages of novel design and compact structure.

[0036] Example 2, as Figure 5 As shown, the difference between the second embodiment and the first embodiment is that a side wall notch 41 is provided on the side wall of the shaft seat 41, and a sleeve protrusion 432 is provided on the telescopic sleeve 43 corresponding to the side wall notch 411 of the shaft seat 41, and the sleeve protrusion 432 of the telescopic sleeve 43 is embedded in the side wall notch 411 of the shaft seat 41.

[0037] The sleeve protrusion 432 of the telescopic sleeve 43 is screwed and fastened with an auxiliary block 433 , and the spherical groove 431 is formed by the sleeve protrusion 432 and the auxiliary block 433 .

[0038] Example 3, as Figures 2 to 4 As shown, the difference between this embodiment three and embodiment one is that the front end of the telescopic slide 43 is provided with a driving rod portion 434 protruding and extending forward, the inner end of the movable swing arm 3 is provided with a driving groove 31, and the driving rod portion 434 is slidably installed in the driving groove 31 of the movable swing arm 3.

[0039] During the telescopic sliding sleeve 43 telescopically slides back and forth relative to the shaft seat 41 , the telescopic sliding sleeve 43 drives the inner end of the movable swing arm 3 to swing back and forth through the driving rod 434 , thereby causing the outer end of the movable swing arm 3 to rotate and swing.

[0040] Example 4, as Figure 2 and Figure 3 As shown, the difference between this fourth embodiment and the first embodiment is that a reduction gearbox 5 is also fastened to the shell accommodating cavity 11, the input end of the reduction gearbox 5 is connected to the power output shaft of the drive motor 2, the output end of the reduction gearbox 5 is connected to the drive shaft 42, and the shaft seat 41 is screwed and fastened to the housing of the reduction gearbox 5.

[0041] Example 5, as Figure 5 As shown, the difference between the fifth embodiment and the first embodiment is that a guide flange 412 is provided on the outer surface of the shaft seat 41 , a guide groove 435 is provided on the inner surface of the telescopic sleeve 43 , and the guide flange 412 is embedded in the guide groove 435 .

[0042] During the telescopic sliding sleeve 43 telescopically slides forward and backward relative to the shaft seat 41 , the fifth embodiment ensures that the telescopic sliding sleeve 43 accurately telescopically slides forward and backward through the guide substructure composed of the guide flange 412 and the guide groove 435 .

[0043] Example 6: Figures 1 to 5 As shown, the difference between the sixth embodiment and the first embodiment is that the main housing 1 includes a left housing 12 and a right housing 13 , and the housing accommodating cavity 11 is enclosed by the left housing 12 and the right housing 13 .

[0044] A swing arm mounting hole 14 is formed between the front end portion of the left shell 12 and the front end portion of the right shell 13 , and the middle portion of the movable swing arm 3 is rotatably mounted in the swing arm mounting hole 14 .

[0045] Specifically, a pivot portion 32 is provided in the middle of the movable swing arm 3, and the left shell 12 and the right shell 13 are respectively provided with pivot holes 15, and the pivot portion 32 of the movable swing arm 3 is respectively inserted into the pivot holes 15 of the left shell 12 and the right shell 13.

[0046] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A novel swing arm assembly comprises a main housing (1), a drive motor (2), and a movable swing arm (3); a housing accommodating cavity (11) is formed inside the main housing (1), and the drive motor (2) is fixedly mounted in the housing accommodating cavity (11); Its characteristics are: The movable swing arm (3) is rotatably mounted on the front end of the main housing (1), the outer end of the movable swing arm (3) extends to the outside of the main housing (1), and the inner end of the movable swing arm (3) extends into the housing accommodating cavity (11); A swing arm drive mechanism (4) is installed in the housing accommodating cavity (11), and the swing arm drive mechanism (4) includes a shaft seat (41) and a driving shaft (42) rotatably installed inside the shaft seat (41). The driving shaft (42) is driven by a driving motor (2), and a spiral groove (421) is provided on the outer circumference of the driving shaft (42). A telescopic sleeve (43) is telescopically and slidably mounted on the periphery of the shaft seat (41). The front end of the telescopic sleeve (43) is connected to the inner end of the movable swing arm (3). A spherical groove (431) is provided on the inner wall of the telescopic sleeve (43). A ball (44) is embedded in the spherical groove (431), and a portion of the ball (44) extends into the spiral groove (421) of the driving shaft (42).

2. A new swing arm assembly according to claim 1, characterized in that: The side wall of the shaft seat (41) is provided with a side wall notch (411), the telescopic sliding sleeve (43) is provided with a sliding sleeve protrusion (432) corresponding to the side wall notch (411) of the shaft seat (41), and the sliding sleeve protrusion (432) of the telescopic sliding sleeve (43) is inserted into the side wall notch (411) of the shaft seat (41); The sleeve convex portion (432) of the telescopic sleeve (43) is screwed and fastened with an auxiliary block (433), and the spherical groove (431) is formed by the sleeve convex portion (432) and the auxiliary block (433).

3. A new swing arm assembly according to claim 1, characterized in that: The front end of the telescopic sliding sleeve (43) is provided with a driving rod portion (434) protruding and extending forward, and the inner end of the movable swing arm (3) is provided with a driving groove (31), and the driving rod portion (434) is slidably installed in the driving groove (31) of the movable swing arm (3).

4. A new swing arm assembly according to claim 1, characterized in that: A reduction gearbox (5) is also fixedly installed in the housing cavity (11), the input end of the reduction gearbox (5) is connected to the power output shaft of the drive motor (2), the output end of the reduction gearbox (5) is connected to the drive shaft (42), and the shaft seat (41) is screwed and fixed to the housing of the reduction gearbox (5).

5. A new swing arm assembly according to claim 1, characterized in that: The outer surface of the shaft seat (41) is provided with a guide flange (412), the inner surface of the telescopic sliding sleeve (43) is provided with a guide groove (435), and the guide flange (412) is embedded in the guide groove (435).

6. A new swing arm assembly according to claim 1, characterized in that: The main housing (1) comprises a left housing (12) and a right housing (13), and the housing accommodating cavity (11) is formed by the left housing (12) and the right housing (13); A swing arm mounting hole (14) is formed between the front end of the left housing (12) and the front end of the right housing (13), and the middle portion of the movable swing arm (3) is rotatably mounted in the swing arm mounting hole (14).

7. A new swing arm assembly according to claim 6, characterized in that: A pivot portion (32) is provided in the middle of the movable swing arm (3), and pivot holes (15) are respectively provided in the left shell (12) and the right shell (13), and the pivot portion (32) of the movable swing arm (3) is respectively inserted into the pivot holes (15) of the left shell (12) and the right shell (13).

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