Rotary bidirectional telescopic mechanism and massager

Abstract

The utility model provides a rotary two-way telescopic mechanism and a massager, and relates to the technical field of telescopic equipment, the rotary two-way telescopic mechanism comprises a driving mechanism, two annular gear rings, two inner cylinders and a guide column; the two annular gear rings are coaxially arranged and are in transmission connection with the output end of the driving mechanism through the gear transmission mechanism; a limiting block is arranged on the annular gear ring; the two inner barrels are coaxially arranged, limiting grooves and guide grooves are formed in the inner barrels, the limiting grooves are parallel to the axes of the inner barrels, and limiting blocks are arranged in the limiting grooves in a sliding mode; the guide grooves are in an annular shape, the guide grooves in each inner cylinder are obliquely arranged relative to the axis of the inner cylinder, and the guide grooves in the two inner cylinders are symmetrical relative to the radial center faces of the two inner cylinders. One end of the guide post is fixedly arranged and the other end is positioned in the guide groove; according to the rotary bidirectional telescopic mechanism, the synchronous bidirectional telescopic function of the two inner cylinders can be achieved, the continuous and rapid telescopic process of the inner cylinders can be achieved, and the application range of the rotary bidirectional telescopic mechanism is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to retractable equipment technical field, concretely relates to a rotary bidirectional telescopic mechanism and massager. BACKGROUND

[0002] Telescopic equipment is a common device in the mechanical field, and telescopic equipment has different telescopic forms and different application scenarios. For example, a rotary massager uses a rotary telescopic mechanism. However, the cylinder in the existing massager is single-cylinder unidirectional movement, and the massage form and massage experience are single. Although there are rotary bidirectional telescopic mechanisms in other fields, their structures are mostly complex, and it is difficult to realize rapid bidirectional reciprocating telescoping, so the use scenarios are limited.

[0003] Therefore, the utility model aims at providing a novel bidirectional telescopic mechanism to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a rotary bidirectional telescopic mechanism and massager to solve the problems in the prior art, realize the function of synchronous bidirectional telescoping of two inner cylinders, facilitate the continuous and rapid telescoping process of the inner cylinder, and improve the application range of the rotary bidirectional telescopic mechanism.

[0005] To achieve the above object, the utility model provides the following scheme:

[0006] A rotary bidirectional telescopic mechanism, comprising a driving mechanism, two annular gear rings, two inner cylinders and a guide column, the two annular gear rings are coaxially arranged, the annular gear ring is in transmission connection with the output end of the driving mechanism through a gear transmission mechanism, a limiting block is arranged on the annular gear ring, the two inner cylinders are coaxially arranged, limiting grooves and guide grooves are arranged on the inner cylinder, the limiting grooves are parallel to the axis of the inner cylinder, the limiting block is slidably arranged in the limiting groove, the guide grooves are annular in shape, the guide groove on each inner cylinder is arranged obliquely relative to the axis of the inner cylinder, and the guide grooves on the two inner cylinders are symmetrically arranged relative to the radial center of the two inner cylinders, one end of the guide column is fixedly arranged, and the other end is located in the guide groove.

[0007] As an embodiment, the driving mechanism comprises a driving motor, a worm is arranged on the output shaft of the driving motor, the gear transmission mechanism comprises a worm wheel, a large gear and two small gears, the worm wheel and the large gear are coaxially connected, the worm wheel is in meshing connection with the worm, the large gear is in meshing connection with the two small gears, and the two small gears are in meshing connection with the annular gear rings respectively.

[0008] As an embodiment, an outer cylinder is further arranged, the outer cylinder is sleeved outside the inner cylinder, and a through hole is arranged on the outer cylinder for the guide column to pass through.

[0009] As an embodiment, the outer surface of the inner cylinder is provided with inclined annular ribs, at least two of which are provided between the guide columns; the support ribs are located on both sides of the inclined annular ribs in the axial direction; the inclined annular ribs and the support ribs are at the same height and are in contact with the inner wall of the outer cylinder.

[0010] As an embodiment, a support cylinder is coaxially arranged between the two outer cylinders, the diameter of the support cylinder is greater than that of the inner cylinder, and the support cylinder and the outer cylinder are respectively in contact with both sides of the annular gear ring; one side of the annular gear ring is provided with an annular accommodating groove for accommodating the end of the outer cylinder, and the other side is provided with a shoulder for bearing the support cylinder.

[0011] As an embodiment, a gear mounting seat is mounted on the support cylinder, and the large gear and the small gear are arranged on the gear mounting seat.

[0012] The utility model also provides a massager, including shell and install in the shell it is as above-mentioned rotating bidirectional telescopic mechanism, the inner surface of two the inner cylinder is provided with first massage convex and second massage convex respectively.

[0013] As an embodiment, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0014] As an embodiment, a controller is fixed on the upper shell, and the controller and the driving motor are located on the same side of the inner cylinder.

[0015] As an embodiment, the lower shell is provided with a rib plate, and the outer cylinder of the rotating bidirectional telescopic mechanism is arranged on the rib plate.

[0016] The utility model has the following technical effects compared with the prior art:

[0017] In the utility model, the driving mechanism drives the two inner cylinders to rotate at the same time, and the inclined annular guide groove is arranged on the inner cylinder. Under the guide and limiting action of the guide column, the two inner cylinders can realize the function of synchronous bidirectional telescoping. Moreover, when the two inner cylinders are synchronously telescoped, the rotation direction of the inner cylinder does not need to be changed, that is, when the driving mechanism drives the inner cylinder to rotate in one direction, the inner cylinder can be telescoped, which saves the rotation reversing process of the inner cylinder, is conducive to realizing the continuous and rapid telescoping process of the inner cylinder, can be applied in the working conditions requiring continuous and rapid telescoping such as massagers, and improves the application range of the bidirectional telescopic mechanism.

[0018] Other technical effects of other technical solutions in the utility model are described in the specific embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the massager in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 The structural diagram is omitted after removing the upper shell.

[0022] Figure 3 This is a schematic diagram of the rotating bidirectional telescopic mechanism in one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the mating structure between the annular toothed ring and the inner cylinder in one embodiment of the present invention;

[0024] Figure 5 for Figure 1 A schematic diagram of the side section structure;

[0025] Figure 6 for Figure 5 A magnified view of a portion of region A in the middle;

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Drive motor; 2. Ring gear; 3. Inner cylinder; 4. Guide post; 5. Limiting block; 6. Limiting groove; 7. Guide groove; 8. Worm gear; 9. Worm; 10. Large gear; 11. Small gear; 12. Outer cylinder; 13. Inclined annular rib; 14. Support rib; 15. Support cylinder; 16. Annular receiving groove; 17. Annular shoulder; 18. Gear mounting base; 19. Upper housing; 20. Lower housing; 21. Controller; 22. Rib; 23. Fixing lug. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The utility model discloses a rotating bidirectional telescopic mechanism and massager, to solve the prior art problem, can realize two inner tube synchronous bidirectional telescopic function, and it is favorable to realize the continuous, quick telescopic process of inner tube, improve the application scope of rotating bidirectional telescopic mechanism.

[0030] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the utility model is further explained in detail below in combination with the drawings and specific embodiments.

[0031] Embodiment 1:

[0032] As Figures 1-6 The utility model discloses a rotating bidirectional telescopic mechanism, including drive mechanism, two annular gear ring 2, two inner tubes 3 and guide column 4, drive mechanism is used for providing power for rotating telescopic, two annular gear ring 2 coaxial arrangement, annular gear ring 2 passes through gear transmission mechanism and the transmission connection of drive mechanism's output end, makes drive mechanism can drive annular gear ring 2 rotation. Annular gear ring 2 is provided with the limit block 5, limit block 5 usually sets up in the inner surface of annular gear ring 2, and extends along the radial direction to the inside. Two inner tubes 3 are coaxially arranged in the embodiment, and limit slot 6 and guide slot 7 are arranged on the inner tube 3, the limit slot 6 is parallel to the axis of the inner tube 3, the limit block 5 is slidably arranged in the limit slot 6, and the limit block 5 is usually gap fitted with the limit slot 6;The guide slot 7 is annular, and the guide slot 7 on each inner tube 3 is inclined relative to the axis of the inner tube 3, and the guide slot 7 on the two inner tubes 3 is symmetrical relative to the radial center plane (in the axial direction, the plane perpendicular to the axis between the two inner tubes 3). Two guide columns 4 are also provided correspondingly, and the two guide columns 4 are symmetrically arranged relative to the radial center plane mentioned above;One end of the guide column 4 is fixedly arranged, and the other end is located in the guide slot 7. In order to avoid the guide column 4 from being stuck in the guide slot 7, the diameter of the guide column 4 is slightly smaller than the width of the guide slot 7.

[0033] When using, drive mechanism drives two annular gear ring 2 to rotate simultaneously through gear transmission mechanism. When annular gear ring 2 rotates, through the circumferential limit of limit block 5 and limit slot 6, annular gear ring 2 can drive inner tube 3 to rotate, and guide column 4 and guide slot 7 slide relative to each other;Because the guide column 4 is fixedly different, and the guide slot 7 is inclined relative to the axis, the inner tube 3 will reciprocate along the axial direction when rotating, realizing telescopic;Further, because the guide slot 7 is annular, the inner tube 3 can realize rotating telescopic function without changing the rotating direction. In addition, the guide slot 7 on the two inner tubes 3 in the embodiment is symmetrically arranged relative to the radial center plane, so that the two inner tubes 3 are simultaneously extended or retracted, realizing the function of bidirectional synchronous telescopic.

[0034] Thus, the driving mechanism in the embodiment drives the two inner cylinders 3 to rotate simultaneously, and the inclined annular guide groove 7 is arranged on the inner cylinder 3. Under the guide and limiting action of the guide column 4, the two inner cylinders 3 can realize the function of synchronous bidirectional telescoping. Moreover, when the two inner cylinders 3 are synchronously telescoped, the rotation direction of the inner cylinder 3 does not need to be changed, that is, the driving mechanism drives the inner cylinder 3 to rotate in one direction to make the inner cylinder 3 telescoped, which saves the rotation reversing process of the inner cylinder 3, is conducive to realizing the continuous and rapid telescoping process of the inner cylinder 3, and can be applied to the working conditions such as massagers that need continuous and rapid telescoping, thereby improving the application range of the rotating bidirectional telescoping mechanism.

[0035] It should be noted that, based on the structure of the inner cylinder 3 in the embodiment, the two inner cylinders 3 can realize synchronous rotation and telescoping whether they rotate in the same direction or in opposite directions. The telescoping length depends on the diameter of the inner cylinder 3 and the inclination angle of the guide groove 7. In the design stage, when adjusting the telescoping length of the inner cylinder 3, the length of the limiting groove 6 also needs to be changed accordingly.

[0036] As an embodiment, the driving mechanism in the embodiment includes a driving motor 1, and a worm 9 is arranged on the output shaft of the driving motor 1. The gear transmission mechanism includes a worm wheel 8, a large gear 10, and two small gears 11. The worm wheel 8 is coaxially connected with the large gear 10 through a connecting shaft, the worm wheel 8 is engaged with the worm 9, the large gear 10 is engaged with the two small gears 11, and the two small gears 11 are respectively engaged with the annular gear rings 2 to drive the two inner cylinders 3 to rotate in opposite directions through the annular gear rings 2. If only the large gear 10 is used to drive the two annular gear rings 2 to rotate in opposite directions, it is also feasible, but the diameter of the large gear 10 needs to be larger, which will occupy more space. If one large gear 10 and one small gear 11 are used to drive the two annular gear rings 2 to rotate in the same direction, it is also feasible.

[0037] In order to ensure the stability of the rotation and telescoping process of the inner cylinder 3, the embodiment further includes an outer cylinder 12, which is sleeved outside the inner cylinder 3, and the outer cylinder 12 is provided with a through hole for the guide column 4 to penetrate. The length of the outer cylinder 12 is not shorter than the length of the inner cylinder 3. When the inner cylinder 3 is retracted to the limit position, the end of the outer cylinder 12 away from the annular gear ring 2 is more outward relative to the end of the inner cylinder 3 away from the annular gear ring 2, which can protect the inner cylinder 3.

[0038] As an embodiment, the outer surface of the inner cylinder 3 is provided with inclined annular ribs 13 and support ribs 14. The inclined annular ribs 13 are at least two, and the guide column 4 is located between the inclined annular ribs 13. In the axial direction, the support ribs 14 are located on both sides of the inclined annular ribs 13. In this embodiment, the inclined annular ribs 13 and the support ribs 14 are both provided in two, and the two inclined annular ribs 13 are arranged adjacent to each other, and the groove between the two inclined annular ribs 13 forms the guide groove 7. One support rib 14 is arranged close to the end of the inner cylinder 3 away from the annular gear ring 2, and the other support rib 14 is arranged close to the end of the limiting groove 6, and the support rib 14 can be connected with the inclined annular rib 13. In this embodiment, the inclined annular rib 13 and the support rib 14 are of the same height, and both are in close contact with the inner wall surface of the outer cylinder 12.

[0039] As an embodiment, the rotating bidirectional telescopic mechanism in this embodiment further comprises a support cylinder 15, which is coaxially arranged between the two outer cylinders 12, and the diameter of the support cylinder 15 is greater than that of the inner cylinder 3, so as to protect the retracted inner cylinder 3. The support cylinder 15, the outer cylinder 12 and the two sides of the annular gear ring 2 abut against each other, so as to axially fix the annular gear ring 2. In order to realize the connection of the annular gear ring 2, the inner cylinder 3 and the outer cylinder 12, the annular gear ring 2 in this embodiment is provided with an annular accommodating groove 16 on one side and an annular shoulder 17 on the other side, the outer cylinder 12 is arranged in the annular accommodating groove 16, and the support cylinder 15 is arranged on the annular shoulder 17.

[0040] As an embodiment, the rotating bidirectional telescopic mechanism in this embodiment further comprises a gear mounting seat 18 mounted on the support cylinder 15, and the large gear 10 and the small gear 11 are arranged on the gear mounting seat 18. Specifically, the gear mounting seat 18 can include an upper mounting seat and a lower mounting seat, and the lower mounting seat can be fixed on the support cylinder 15 by an integral molding manner. When the large gear 10 and the small gear 11 are arranged on the lower mounting seat, the upper mounting seat is buckled on the lower mounting seat and fixed by bolts. The fixing method of the large gear 10 and the small gear 11 on the gear mounting seat 18 is well known to those skilled in the art, and this embodiment does not make any further description.

[0041] Embodiment 2:

[0042] As Figures 1-6As shown, the embodiment provides a massager, which comprises a shell and a rotating bidirectional telescopic mechanism as described in embodiment 1 installed in the shell, and the inner surfaces of the two inner cylinders 3 are respectively provided with first massage protrusions and second massage protrusions (the first massage protrusions and the second massage protrusions are not shown in the figure). The shell serves as a protective structure for the rotating bidirectional telescopic mechanism and is also more convenient for users to hold. The first massage protrusions and the second massage protrusions can be silicone protrusions or balls. The specific protrusion structure can be set according to the massage part and the massage requirement. After the rotating bidirectional telescopic mechanism is used in the massager, the user can experience the massage experience of the first massage protrusions and the second massage protrusions rotating bidirectionally. Moreover, the shapes, arrangement modes and sizes of the first massage protrusions and the second massage protrusions can be different to adapt to the shape of the user's limbs and provide different massage feelings to the user.

[0043] As an embodiment, the shell comprises an upper shell 19 and a lower shell 20, and the upper shell 19 and the lower shell 20 are detachably connected, so that the rotating bidirectional telescopic mechanism can be easily disassembled for maintenance and repair.

[0044] As an embodiment, the massager further comprises a controller 21 fixed on the upper shell 19, and the controller 21 and the driving motor 1 are located on the same side of the inner cylinder 3 to reasonably utilize the space in the shell. The controller 21 is used to control the start and stop of the rotating motor, and based on the design of the control program in the controller 21 by those skilled in the art, the controller 21 can also adjust the rotating speed of the rotating motor. The controller 21 is a common device on the massager, and the structure setting and control program compilation thereof are well known to those skilled in the art, and therefore will not be described herein. The controller 21 can be connected to an external power supply or an internal storage battery. The storage battery can be arranged in the mounting shell of the controller 21, and a charging port for charging the storage battery can be arranged on the shell.

[0045] As an embodiment, the lower shell 20 is provided with a rib plate 22, and the outer cylinder 12 in the rotating bidirectional telescopic mechanism is arranged on the rib plate 22. The rib plate 22 can strengthen the strength of the lower shell 20 and support the outer cylinder 12, so that the upper shell 19 can be easily installed and aligned.

[0046] In order to avoid the outer cylinder 12 and the support cylinder 15 from shaking in the shell, the outer cylinder 12 and the support cylinder 15 are both provided with a fixing lug 23, and the fixing lug 23 is provided with a through hole for penetrating a bolt. When the upper shell 19 and the lower shell 20 are bolted, the bolt penetrates through the through hole and is fixed.

[0047] The adaptive changes according to actual requirements are within the protection scope of the utility model.

[0048] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A rotary bidirectional telescopic mechanism, characterized in that, The utility model relates to a rotating bidirectional telescopic mechanism, comprising: a driving mechanism; two annular gear rings coaxially arranged, the annular gear rings are in transmission connection with the output end of the driving mechanism through a gear transmission mechanism; the annular gear rings are provided with a limiting block; two inner cylinders coaxially arranged, the inner cylinders are provided with a limiting groove and a guide groove, the limiting groove is parallel to the axis of the inner cylinder, the limiting block is slidably arranged in the limiting groove; the guide groove is annular, the guide groove on each inner cylinder is arranged obliquely relative to the axis of the inner cylinder, and the guide grooves on the two inner cylinders are symmetrically arranged relative to the radial center of the two inner cylinders; and a guide column, one end of the guide column is fixedly arranged, and the other end is located in the guide groove.

2. The rotary bidirectional telescopic mechanism according to claim 1, wherein, The driving mechanism comprises a driving motor, a worm is arranged on the output shaft of the driving motor; the gear transmission mechanism comprises a worm wheel, a large gear and two small gears, the worm wheel and the large gear are coaxially connected, the worm wheel is in mesh with the worm, the large gear is in mesh with the two small gears, and the two small gears are in mesh with the annular gear rings respectively.

3. The rotary bidirectional telescoping mechanism of claim 2, wherein, Further comprising an outer cylinder, the outer cylinder is sleeved outside the inner cylinder, the outer cylinder is provided with a through hole for the guide column to penetrate through.

4. The rotary bidirectional telescoping mechanism of claim 3, wherein, The outer surface of the inner cylinder is provided with an inclined annular rib and a supporting rib, the inclined annular rib is at least two, the guide column is located between the inclined annular ribs; in the axial direction, the supporting rib is located on both sides of the inclined annular rib; the inclined annular rib and the supporting rib are in the same height, and are in close contact with the inner wall surface of the outer cylinder.

5. The rotary bidirectional telescoping mechanism of claim 3, wherein, Further comprising a supporting cylinder, the supporting cylinder is coaxially arranged between the two outer cylinders, the diameter of the supporting cylinder is greater than that of the inner cylinder, and the supporting cylinder and the outer cylinder abut against both sides of the annular gear ring respectively; one side of the annular gear ring is provided with an annular accommodating groove for accommodating the end of the outer cylinder, and the other side is provided with a shoulder for bearing the supporting cylinder.

6. The rotary bidirectional telescoping mechanism of claim 5, wherein, Further comprising a gear mounting seat mounted on the supporting cylinder, the large gear and the small gear are arranged on the gear mounting seat.

7. A massager characterized by comprising: The utility model relates to a rotating bidirectional telescopic mechanism, comprising:

8. The massager of claim 7, wherein, a shell and a rotating bidirectional telescopic mechanism as claimed in any one of claims 1-6 mounted in the shell, the inner surfaces of the two inner cylinders are respectively provided with first massage protrusions and second massage protrusions.

9. The massager of claim 8, wherein, The shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

10. The massaging device according to claim 8, wherein Further comprising a controller fixed on the upper shell, the controller and the driving motor are located on the same side of the inner cylinder. The lower shell is provided with a rib plate, and the outer cylinder in the rotating bidirectional telescopic mechanism is arranged on the rib plate.

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