Eccentric massage mechanism and massage device

Abstract

The utility model discloses an eccentric massage mechanism which comprises a fixed base. The composite eccentric part is rotationally connected to the fixed base; and the deflection arm component is provided with a transmission connecting part which is movably connected with the fixed base, the deflection arm component is installed on the composite eccentric part, and under the cooperation of the transmission connecting part and the composite eccentric part, the deflection arm component does translational eccentric motion and deflection eccentric motion. Meanwhile, the utility model further discloses a massage device using the eccentric massage mechanism, the movement range of an existing massage arm is effectively expanded, and meanwhile the massage movement path of the massage arm is enriched.

Description

Technical Field

[0001] The utility model relates to the field of massagers, in particular to an eccentric massage mechanism and a massage device. Background Art

[0002] As people's living standards improve, the demand for various massage instruments is growing. Massage instruments can achieve precise massage of various parts of the human body (such as head, neck and shoulders, etc.). Taking the neck and shoulder massager as an example, people tend to use the neck and shoulder massager to relax because they sit in the office for a long time.

[0003] The shoulder and neck massagers on the market have massage arms for the muscles near the shoulder blades, but the existing massage arms are usually directly connected with the motor and gearbox in the movement to control the massage arms to make circular deflection massage movements. The range of massage activity is limited and relatively single, which not only leads to poor massage comfort experience for people, but also is limited by the range of activity of the massage arms. It is also easy to have the problem of not being able to cover multiple muscle groups such as the splenius capitis, splenius cervicis, and levator scapulae at the same time, which seriously affects the massage effect. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides an eccentric massage mechanism and a massage device, which effectively expand the range of motion of the existing massage arms and enrich the massage activity paths of the massage arms.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An eccentric massage mechanism, comprising:

[0007] Fixed base;

[0008] A composite eccentric member, the composite eccentric member being rotatably connected to the fixed base;

[0009] A deflection arm component is provided with a transmission connection part movably connected to the fixed base, the deflection arm component is installed on the composite eccentric part, and under the cooperation of the transmission connection part and the composite eccentric part, the deflection arm component performs translational eccentric movement and deflection eccentric movement.

[0010] In some embodiments of the utility model, a guide groove is provided on the fixed base, the transmission connection part includes a transmission extension body, and a spherical sliding body arranged at the end of the transmission extension body, the transmission extension body is extended and formed from the rotating end of the deflection arm component toward one side of the guide groove, and the spherical sliding body is slidably constrained inside the guide groove.

[0011] In some embodiments of the utility model, the eccentric massage mechanism further comprises a bearing member, on which a bearing contact surface for contacting the spherical sliding body is arranged, and the bearing member is mounted on the fixed base and slidably disposed in the guide groove.

[0012] In some embodiments of the utility model, one of the bearing component and the fixed base is provided with a sliding guide groove, and the other of the bearing component and the fixed base is provided with a sliding guide member, the sliding guide groove extends along the groove depth direction of the guide groove, and the sliding guide member is slidably connected to the sliding guide groove.

[0013] In some embodiments of the utility model, the transmission connection part also includes a connecting rod component, a transmission support body, and a ball joint connection end arranged at the end of the transmission support body, one end of the connecting rod component is hingedly connected to the ball joint connection end, the other end of the connecting rod component is hingedly connected to the fixed base, and the transmission support body is fixedly connected to the deflection arm component.

[0014] In some embodiments of the utility model, the connecting rod component includes a ball joint connecting rod, and a first ball joint part and a second ball joint part respectively arranged at both ends of the ball joint connecting rod, the ball joint connecting end is hingedly connected to the first ball joint part, and a ball joint structure hingedly connected to the second ball joint part is arranged on the fixed base.

[0015] In some embodiments of the present invention, the composite eccentric member includes an eccentric wheel member and a cam transmission member, the eccentric wheel member is connected to the cam transmission member, the rotating end of the eccentric arm member is sleeved on the eccentric wheel member and / or the cam transmission member, and the eccentric wheel member and the cam transmission member cooperate so that the eccentric arm member can move linearly along the central axis direction of its rotating end and make eccentric motion in a plane perpendicular to the central axis direction.

[0016] In some embodiments of the present invention, the composite eccentric member further comprises a driving shaft, the eccentric wheel member is provided with a rotating hole for inserting the driving shaft, and the rotation center line of the rotating hole and the center of mass line of the eccentric wheel member are not arranged to overlap.

[0017] In some embodiments of the present invention, a force-bearing contact surface abutting against the deflection arm component is arranged on the cam transmission component, and the center of mass line of the eccentric wheel component is inclined to the force-bearing contact surface.

[0018] The utility model also discloses a massage device, which comprises the above-mentioned eccentric massage mechanism.

[0019] In summary, the eccentric massage mechanism and massage device provided by the utility model have the following technical effects:

[0020] By cleverly utilizing the cooperation between the composite eccentric member and the transmission connection part of the eccentric arm member, the eccentric arm member can perform translational eccentric movement and deflection eccentric movement, which not only increases the range of motion of the eccentric arm member, but also enables the eccentric massage mechanism and the massage device to act well on multiple muscle groups such as the splenius capitis, splenius cervicis, and levator scapulae, thereby ensuring and improving the massage effect. At the same time, it also enriches the massage activity path of the massage arm, further improving the massage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first overall structural diagram of an eccentric massage mechanism of the utility model;

[0022] Figure 2 This is a first exploded structural diagram of an eccentric massage mechanism of the utility model;

[0023] Figure 3 This is a second overall structural diagram of an eccentric massage mechanism of the utility model;

[0024] Figure 4 This is a second exploded structural diagram of an eccentric massage mechanism of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the composite eccentric member in the utility model;

[0026] Figure 6 It is a schematic diagram of the eccentricity of the composite eccentric member in the utility model;

[0027] Figure 7 This is the first structural diagram of the deflection arm component in the utility model;

[0028] Figure 8 This is the second structural diagram of the deflection arm component in the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the bearing bush component in the utility model;

[0030] Fig.10 It is a structural schematic diagram of the fixed base in the utility model.

[0031] Icons: 1-fixed base, 11-guide groove, 12-ball joint structure, 13-bearing seat, 2-compound eccentric part, 21-eccentric wheel part, 22-cam transmission part, 23-driving shaft, 24-rotating hole, 25-force contact surface, 26-transmission protrusion, 3-swing arm component, 311-transmission extension body, 312-spherical sliding body, 321-transmission support body, 322-ball joint connecting end, 331-rotating end, 332-executing end, 34-swing arm limiting groove, 4-bearing component, 41-bearing contact surface, 5-connecting rod component, 51-first ball joint part, 52-second ball joint part, 53-ball joint connecting rod, 61-sliding guide groove, 62-sliding guide part. DETAILED DESCRIPTION

[0032] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] First embodiment

[0036] Please combine the specific Figures 1 to 4 As shown, the utility model discloses an eccentric massage mechanism, including a fixed base 1, a composite eccentric piece 2 and an eccentric arm member 3, wherein the composite eccentric piece 2 is rotatably connected to the fixed base 1, and specifically, the composite eccentric piece 2 is connected to a bearing seat 13 of the fixed base 1, so as to ensure that the composite eccentric piece 2 rotates more smoothly and stably. A transmission connection part movably connected to the fixed base 1 is provided on the eccentric arm member 3, and the eccentric arm member 3 is installed on the composite eccentric piece 2.

[0037] Among them, one end of the deflection arm component 3 used to connect the composite eccentric component 2 is defined as the rotating end 331 of the deflection arm component 3, and the other end of the deflection arm component 3 is the execution end 332 of the deflection arm component 3. The execution end 332 of the deflection arm component 3 is used to act on the human body to achieve the purpose of massaging the human body.

[0038] In this way, a driving torque is applied to the composite eccentric 2, causing the composite eccentric 2 to perform rotational motion or deflection motion. Since the yaw arm component 3 is installed and connected to the composite eccentric 2, the composite eccentric 2 transmits the force and motion to the yaw arm component 3, causing relative motion between the yaw arm component 3 and the composite eccentric 2, and the yaw arm component 3 performs eccentric motion under the action of the composite eccentric 2.

[0039] That is, if Figure 6 As shown, the composite eccentric member 2 utilizes the characteristics of eccentric motion, so the rotation center and the mass center of the composite eccentric member 2 do not coincide, so that the composite eccentric member 2 will form an eccentric distance A during the deflection motion, producing a significant eccentric effect. At the same time, in conjunction with the constraint between the transmission connection part of the deflection arm member 3 and the fixed base 1, the deflection arm member 3 will perform a reciprocating translational eccentric motion between the rotation center and the mass center of the composite eccentric member 2. Therefore, by utilizing the cooperation between the deflection arm member 3 and the composite eccentric member 2, the deflection range / massage stroke of the eccentric massage mechanism can be effectively increased, thereby effectively improving the pressing effect of the eccentric massage mechanism.

[0040] In this embodiment, please refer to Figures 1 to 6 As shown, the above-mentioned composite eccentric member 2 includes an eccentric wheel member 21 and a cam transmission member 22, and the eccentric wheel member 21 is connected to the cam transmission member 22. The connection here can be selected as a bolt connection, that is, one of the eccentric wheel member 21 and the cam transmission member 22 is provided with a threaded hole, and the other of the eccentric wheel member 21 and the cam transmission member 22 is provided with a through hole, then at least one bolt passes through the through hole and is screwed to the threaded hole, so that the eccentric wheel member 21 and the cam transmission member 22 are connected and fixed. In addition, the connection here can also be selected as a snap-on connection, or a magnetic connection, or a combination of any two of the above connection methods, or a combination of the above three connection methods.

[0041] For further details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, the rotating end 331 of the eccentric arm component 3 is sleeved on the eccentric wheel component 21. Specifically, a swing arm limit groove 34 is provided on the outer wall of the eccentric wheel component 21, and the rotating end 331 of the eccentric arm component 3 is provided with a through installation opening. The installation opening of the eccentric arm component 3 is sleeved in the swing arm limit groove 34 along the center of mass line direction of the eccentric wheel component 21. When the eccentric wheel component 21 is installed and connected to the cam transmission component 22, the eccentric arm component 3 will be constrained in the swing arm limit groove 34.

[0042] In addition, in addition to the above-mentioned manner that the rotating end 331 of the yaw arm member 3 is sleeved on the eccentric wheel member 21, the rotating end 331 of the yaw arm member 3 can also be sleeved on the cam transmission member 22, that is, the above-mentioned swing arm limit groove 34 is provided on the cam transmission member 22. Alternatively, the rotating end 331 of the yaw arm member 3 is sleeved on the eccentric wheel member 21 and the cam transmission member 22, that is, the above-mentioned swing arm limit groove 34 is provided on the eccentric wheel member 21 and the cam transmission member 22, respectively.

[0043] As a further preferred embodiment of this embodiment, please refer to Figures 1 to 6 As shown, the composite eccentric member 2 also includes a driving shaft 23, the eccentric wheel member 21 is provided with a rotating hole 24 for inserting the driving shaft 23, the rotation center line of the rotating hole 24 and the center of mass line of the eccentric wheel member 21 are not arranged to coincide, and the cam transmission member 22 is provided with a through opening.

[0044] During installation, if Figure 5 As shown, the driving shaft 23 passes through the through hole of the cam transmission member 22 and is inserted into the rotating hole 24 of the eccentric wheel member 21. In order to ensure that the force and movement of the driving shaft 23 are stably transmitted to the eccentric wheel member 21, a transmission groove is provided on the hole wall of the rotating hole 24, and the driving shaft 23 protrudes along its radial extension with a transmission protrusion 26, which is embedded in the transmission groove. Through the cooperation of the transmission protrusion 26 and the transmission groove, the force and movement of the driving shaft 23 can be stably and accurately transmitted to the eccentric wheel member 21, avoiding the problem of misalignment between the driving shaft 23 and the eccentric wheel member 21.

[0045] When rotating, when the driving shaft 23 is rotated by the driving torque, the eccentric wheel member 21 will make eccentric motion under the drive of the driving shaft 23, thereby achieving the purpose of eccentric motion of the composite eccentric member 2, and the eccentric arm member 3 will make translational eccentric motion under the action of the composite eccentric member 2, thereby improving the pressing effect of the eccentric massage mechanism.

[0046] It should be noted that the number of transmission grooves on the rotating hole 24 can be selected to be one or more. Correspondingly, the number of transmission protrusions 26 is adapted to the number of transmission grooves, and each transmission protrusion 26 is correspondingly arranged to each transmission groove.

[0047] It should also be noted that in order to ensure that the force and movement of the driving shaft 23 are stably transmitted to the cam transmission member 22 and that the eccentric wheel member 21 and the cam transmission member 22 rotate synchronously, a force groove is provided on the inner side wall of the through-opening, and the transmission protrusion 26 on the driving shaft is inserted and embedded in the through-opening of the cam transmission member 22.

[0048] As a further preferred method of this embodiment, please refer to Figures 1 to 6 As shown, the cam transmission member 22 is provided with a force contact surface 25 which abuts the yaw arm member 3, and the center of mass line of the eccentric wheel member 21 is inclined to the force contact surface 25 of the cam transmission member 22, that is, in the direction of the positive projection of the force contact surface 25, the center of mass line of the eccentric wheel member 21 and the force contact surface 25 form an eccentric angle B.

[0049] Specifically, the groove wall of the swing arm limit groove 34 and the force contact surface 25 are arranged in parallel, so that the two side surfaces of the eccentric swing arm member 3 can respectively contact the groove wall of the swing arm limit groove 34 and the force contact surface 25 of the cam transmission member 22. In this way, the eccentric swing arm member 3 and the driving shaft 23 are arranged at an angle, so that the execution end 332 of the eccentric swing arm member 3 is better adapted to the human body, thereby improving the experience of the eccentric massage mechanism acting on the human body.

[0050] At the same time, in conjunction with the constraint between the transmission connection part of the deflection arm component 3 and the fixed base 1, the deflection arm component 3 can perform deflection eccentric movement within the range of the eccentric angle B driven by the driving shaft 23, so that the execution end 332 of the deflection arm component 3 does not perform eccentric movement in the same plane, thereby better adapting to the parts of the human body for pressing and massaging, retaining the experience similar to human body kneading.

[0051] From the above, it can be known that, through the cooperation of the eccentric wheel 21 and the cam transmission member 22, the yaw arm member 3 can move in translation along the central axis direction of its rotating end 331, and make eccentric motion in a plane perpendicular to the central axis direction. That is, under the cooperation of the yaw arm member 3 and the composite eccentric member 2, the yaw arm member 3 combines the translational eccentric motion and the deflection eccentric motion to form an arbitrary massage motion trajectory, so that the massage motion trajectory is more diversified, the massage effect is enriched, and it is better adapted to various massage occasions.

[0052] As a preferred method of this embodiment, please refer to Figure 1 , Figure 2 and Figure 7 As shown, a guide slot 11 is provided on the fixed base 1, and the depth direction of the guide slot 11 is consistent with the direction of the translational eccentric motion.

[0053] Further, please refer to Figure 7As shown, the transmission connection part includes a transmission extension body 311 and a spherical sliding body 312 arranged at the end of the transmission extension body 311. The transmission extension body 311 is extended and formed from the rotating end 331 of the deflection arm component 3 toward the side of the guide groove 11. The transmission extension body 311 is preferably integrally formed with the spherical sliding body 312, and the spherical sliding body 312 is slidably constrained in the interior of the guide groove 11. In this way, not only the risk of the deflection arm component 3 being detached along the central axis direction of the driving shaft 23 is avoided, but also, when the deflection arm component 3 is in a movement process combining translational eccentric motion and deflection eccentric motion, the spherical sliding body 312 will be able to translate along the depth direction of the guide groove 11 and flexibly deflect in the guide groove 11.

[0054] Considering that point contact is formed between the spherical sliding body 312 and the guide groove 11, the spherical sliding body 312 will easily cause wear to the guide groove 11 during long-term reciprocating motion. To address this problem, the inventor discloses a preferred further method as follows:

[0055] Please combine the specific Figure 1 , Figure 2 , Figure 7 and Fig. 9 As shown, the above-mentioned eccentric massage mechanism also includes a bearing bush component 4, on which a bearing bush contact surface 41 is provided for contacting the spherical sliding body 312, so that a ball pair is formed between the spherical sliding body 312 and the bearing bush component 4, and the bearing bush component 4 is installed on the fixed base 1 and slidably arranged in the guide slot 11 of the fixed base 1, so that a plane pair is formed between the bearing bush component 4 and the fixed base 1. In this way, the wear problem caused by point contact during frequent movement can be effectively avoided, and the stability of the transmission connection part during the activity process can be ensured.

[0056] Preferably, please combine Fig. 9 and Fig.10 As shown, a sliding guide groove 61 is provided on the fixed base 1. Specifically, the sliding guide groove 61 is provided on the inner groove wall of the guide groove 11. A sliding guide member 62 is provided on the bearing member 4. The sliding guide groove 61 extends along the groove depth direction of the guide groove 11. The sliding guide member 62 is slidably connected to the sliding guide groove 61.

[0057] It should be noted that in addition to the above-mentioned method of setting the sliding guide groove 61 on the fixed base 1 and the sliding guide member 62 on the bearing component 4, the sliding guide member 62 can also be set on the inner side of the sliding guide groove 61 of the fixed base 1, and the sliding guide groove 61 can be set on the bearing component 4, and the sliding guide member 62 can also be slidably connected to the sliding guide groove 61.

[0058] Based on the above-mentioned eccentric massage mechanism, the inventor also disclosed a massage device using the eccentric massage mechanism, including the above-mentioned eccentric massage mechanism.

[0059] Second embodiment

[0060] Based on the eccentric massage mechanism disclosed in the first embodiment, the inventor also discloses another preferred method. Figure 3 , Figure 4 and Figure 8 As shown, the difference between this embodiment and the first embodiment is only that:

[0061] The above-mentioned transmission connection part also includes a connecting rod component 5, a transmission support body 321, and a ball joint connection end 322 arranged at the end of the transmission support body 321, one end of the connecting rod component 5 is hingedly connected to the ball joint connection end 322, and the other end of the connecting rod component 5 is hingedly connected to the fixed base 1, wherein the transmission support body 321 extends from the rotating end 331 of the deflection arm component 3 toward the side deviating from the fixed base 1, so that after the connecting rod component 5 is installed, the connecting rod component 5 is located on one side of the fixed base 1, and the transmission support body 321 is fixedly connected to the deflection arm component 3, and the fixed connection here is preferably integrally formed, and the fixed connection can also be selected as a welding connection.

[0062] In this way, through the cooperation of the connecting rod component 5, the transmission support body 321 and the ball joint connection end 322, not only can the risk of the yaw arm component 3 being separated along the central axis direction of the driving shaft 23 be avoided, but also, when the yaw arm component 3 is in the process of combining translational eccentric motion and deflection eccentric motion, the yaw arm component 3 is constrained by the hinge of the connecting rod component 5, and can also stably perform deflection eccentric motion within the range of the eccentric angle B, thereby ensuring the operational stability of the yaw arm component 3.

[0063] As a further preferred method of this embodiment, please refer to Figure 3 and Figure 4 As shown, the above-mentioned connecting rod component 5 includes a ball joint connecting rod 53, and a first ball joint part 51 and a second ball joint part 52 respectively arranged at both ends of the ball joint connecting rod 53, the ball joint connecting end 322 is hingedly connected to the first ball joint part 51, and a ball joint structure 12 hingedly connected to the second ball joint part 52 is arranged on the fixed base 1.

[0064] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An eccentric massage mechanism, characterized in that: include: A fixed base (1); A composite eccentric member (2), the composite eccentric member (2) being rotatably connected to the fixed base (1); A deflection arm component (3) is provided with a transmission connection portion movably connected to the fixed base (1); the deflection arm component (3) is mounted on the composite eccentric component (2); and under the cooperation of the transmission connection portion and the composite eccentric component (2), the deflection arm component (3) performs translational eccentric movement and deflection eccentric movement.

2. The eccentric massage mechanism according to claim 1, characterized in that: A guide groove (11) is provided on the fixed base (1), and the transmission connection part includes a transmission extension body (311) and a spherical sliding body (312) provided at the end of the transmission extension body (311), the transmission extension body (311) is extended and formed from the rotating end (331) of the deflection arm component (3) toward one side of the guide groove (11), and the spherical sliding body (312) is slidably constrained inside the guide groove (11).

3. The eccentric massage mechanism according to claim 2, characterized in that: It also includes a bearing bush component (4), on which a bearing bush contact surface (41) is provided for surface contact with the spherical sliding body (312); the bearing bush component (4) is mounted on the fixed base (1) and is slidably disposed in the guide groove (11).

4. The eccentric massage mechanism according to claim 3, characterized in that: One of the bearing member (4) and the fixed base (1) is provided with a sliding guide groove (61), and the other of the bearing member (4) and the fixed base (1) is provided with a sliding guide member (62), the sliding guide groove (61) extends along the groove depth direction of the guide groove (11), and the sliding guide member (62) is slidably connected to the sliding guide groove (61).

5. The eccentric massage mechanism according to claim 1, characterized in that: The transmission connection part also includes a connecting rod component (5), a transmission support body (321), and a ball joint connection end (322) arranged at the end of the transmission support body (321), one end of the connecting rod component (5) is hingedly connected to the ball joint connection end (322), the other end of the connecting rod component (5) is hingedly connected to the fixed base (1), and the transmission support body (321) is fixedly connected to the deflection arm component (3).

6. The eccentric massage mechanism according to claim 5, characterized in that: The connecting rod component (5) includes a ball joint connecting rod (53), and a first ball joint part (51) and a second ball joint part (52) respectively arranged at two ends of the ball joint connecting rod (53); the ball joint connecting end (322) is hingedly connected to the first ball joint part (51); and a ball joint structure (12) hingedly connected to the second ball joint part (52) is arranged on the fixed base (1).

7. The eccentric massage mechanism according to any one of claims 1 to 6, characterized in that: The composite eccentric member (2) comprises an eccentric wheel member (21) and a cam transmission member (22), wherein the eccentric wheel member (21) is connected to the cam transmission member (22), and the rotating end (331) of the yaw arm member (3) is sleeved on the eccentric wheel member (21) and / or the cam transmission member (22), and the eccentric wheel member (21) and the cam transmission member (22) cooperate so that the yaw arm member (3) can move in a translational manner along the central axis direction of its rotating end (331) and perform eccentric movement in a plane perpendicular to the central axis direction.

8. The eccentric massage mechanism according to claim 7, characterized in that: The composite eccentric member (2) further comprises a driving shaft (23), and the eccentric wheel member (21) is provided with a rotating hole (24) for inserting the driving shaft (23), and the rotation center line of the rotating hole (24) and the center of mass line of the eccentric wheel member (21) are arranged not to overlap.

9. The eccentric massage mechanism according to claim 7, characterized in that: The cam transmission component (22) is provided with a force-bearing contact surface (25) abutting against the yaw arm component (3), and the center of mass line of the eccentric wheel component (21) is inclined to the force-bearing contact surface (25).

10. A massage device, characterized in that: It comprises the eccentric massage mechanism as described in any one of claims 1 to 9.

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