Massage machine core and massager

Abstract

The utility model relates to knead formula massager technical field, concretely relates to a massage machine core and have the massager of this massage machine core, this massage machine core includes casing, massage head subassembly, motor and gear shape transmission mechanism, motor is used for driving massage head subassembly swing, the output gear of gear shape transmission mechanism has the mounting hole that is relative to its pivot inclination, eccentricity inclined bar is worn in the mounting hole of output gear, its end protrudes in casing and connects massage head subassembly, the limit structure is established between massage head subassembly and casing to be used for limiting the rotation of massage head subassembly in the circumference of output gear, thereby eccentricity inclined bar and massage head subassembly swing along with the rotation of output gear. The utility model's gear shape transmission mechanism and massage head subassembly drive through eccentricity inclined bar connection, eccentricity inclined bar can swing under the joint action of output gear and limit structure, and further drive massage head subassembly swing, the whole simple structure makes the work of massage machine core more reliable and higher life.

Description

Technical Field

[0001] This utility model relates to the technical field of kneading massagers, specifically to a massage mechanism and a massager. Background Technology

[0002] A kneading massager is a massage product that simulates the kneading motion of human hands. It can be used for kneading massage on various areas such as the neck, waist, and legs. The core of the massager is its mechanism, which includes a motor and two massage heads. The two massage heads oscillate independently under the drive of the motor, thereby simulating the kneading motion of human hands. To achieve the oscillation of the massage heads, a gear transmission mechanism and an eccentric mechanism drive the oscillation between the massage heads and the motor. However, existing eccentric mechanisms are usually located in the massage heads, resulting in a complex and easily damaged structure for the massage heads, and also hindering the simplification of the mechanism's structure for miniaturization. Summary of the Invention

[0003] The purpose of this utility model is to provide a massage mechanism and a massager to solve the problem of the complex structure of existing massager mechanisms.

[0004] To achieve the above objectives, the technical solution of this utility model includes:

[0005] A massage mechanism includes a housing, a massage head assembly, and a motor and a gear transmission mechanism disposed within the housing. The motor drives the massage head assembly to oscillate via the gear transmission mechanism. The gear transmission mechanism includes an output gear. The massage head assembly is fixedly connected to an eccentric rod. The output gear has a mounting hole inclined relative to its axis of rotation. The eccentric rod passes through the mounting hole of the output gear. The end of the eccentric rod protrudes from the housing and connects to the massage head assembly. A limiting structure is provided between the massage head assembly and the housing to restrict the rotation of the massage head assembly in the circumferential direction of the output gear, thereby causing the eccentric rod and the massage head assembly to oscillate as the output gear rotates.

[0006] In one embodiment, the eccentric inclined rod has a first end and a second end opposite to each other. The first end is provided with an annular flange, and the second end protrudes from the housing and is connected to the massage head assembly. The eccentric inclined rod passes through the mounting hole and its first end abuts against the end face of the mounting hole. The diameter of the eccentric inclined rod is smaller than the inner diameter of the mounting hole.

[0007] In one embodiment, the output gear has a pivot hole on its end face away from the massage head assembly, and the inner surface of the housing has a protruding pivot portion. The pivot hole is located on the pivot portion to allow the output gear to rotate around the pivot portion. The end face of the pivot hole has a recessed portion, which is connected to the mounting hole. The inner diameter of the recessed portion is larger than the inner diameter of the mounting hole, thereby forming a stepped structure on the end face of the mounting hole. The annular flange of the eccentric inclined rod abuts against the stepped structure.

[0008] In one embodiment, the end face of the output gear facing the massage head assembly has a protrusion, and the mounting hole is disposed on the protrusion, thereby extending the axial length of the mounting hole.

[0009] In one embodiment, the massage head assembly is provided with a connection hole, the second end of the eccentric inclined rod is inserted into the connection hole, and the second end of the eccentric inclined rod and the massage head assembly are fixedly connected by a threaded connector, the threaded connector being connected to the eccentric inclined rod along the axial direction of the eccentric inclined rod.

[0010] In one embodiment, the massage head assembly includes a connector and a massage component that are assembled opposite to each other. The connector is connected to the eccentric inclined rod, and the massage component is disposed on the side of the connector opposite to the eccentric inclined rod. The massage component has two grinding heads. The outer side of the connector is provided with a limiting protrusion. The housing is provided with a limiting groove. The limiting protrusion is disposed in the limiting groove and the two cooperate to form the limiting structure.

[0011] In one embodiment, the side walls of the limiting protrusion and the limiting groove abut against each other in the circumferential direction of the output gear, and the depth of the limiting groove is greater than that of the limiting protrusion, so that the limiting protrusion slides relative to the limiting groove in its depth direction as the output gear rotates, causing the massage head assembly to swing as the output gear rotates.

[0012] In one embodiment, the toothed transmission mechanism includes a worm gear connected to the motor output shaft and two gear transmission sets connected to the worm gear. Each gear transmission set is provided with an output gear, and each output gear is connected to a massage head assembly.

[0013] The technical solution of this utility model also includes:

[0014] A massager comprising the aforementioned massage mechanism.

[0015] The beneficial effects of this utility model are as follows: The toothed transmission mechanism and the massage head assembly of this utility model are connected by an eccentric inclined rod for transmission. The eccentric inclined rod is inclined relative to the rotation axis of the output gear. There is also a limiting structure between the massage head assembly and the housing to restrict its rotation along the circumference of the output gear. The eccentric inclined rod can swing under the combined action of the output gear and the limiting structure, thereby driving the massage head assembly to swing. The overall structure is simple, which makes the operation of the massage mechanism more reliable and its lifespan longer. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0017] Figure 2 This is an exploded view of an embodiment of this utility model.

[0018] Figure 3 This is a top view of an embodiment of the present invention, showing the massage head assembly in a swinging state.

[0019] Figure 4 yes Figure 3 The A1-A1 sectional view shows the massage head assembly in a swinging state.

[0020] Figure 5 yes Figure 4 A cross-sectional view of the BB shows the massage head assembly in a swinging state.

[0021] Figure 6 This is a perspective view of the output gear of an embodiment of this utility model.

[0022] Figure 7 This is a top view of an embodiment of the present invention, showing the massage head assembly in a swinging state.

[0023] Figure 8 yes Figure 7 A2-A2 sectional view, the massage head assembly is in an oscillating state.

[0024] The components include: 1 housing, 11 limiting groove, 12 rotating shaft, 2 massage head assembly, 201 connecting hole, 21 connecting piece, 211 limiting protrusion, 22 massage piece, 221 grinding head, 3 motor, 4 toothed transmission mechanism, 41 worm gear, 42 gear transmission group, 420 output gear, 421 mounting hole, 422 rotating shaft hole, 423 recess, 424 protrusion, 5 eccentric inclined rod, 51 first end, 511 annular flange, 52 second end, 521 blind hole, and 6 limiting structure. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] Example 1

[0027] See Figures 1 to 8 As shown, this utility model discloses a massage mechanism, including a housing 1, a massage head assembly 2, and a motor 3 and a gear transmission mechanism 4 disposed within the housing 1. The motor 3 drives the massage head assembly 2 to swing through the gear transmission mechanism 4. In this embodiment, the gear transmission mechanism 4 includes a worm gear 41 connected to the motor output shaft and two gear transmission sets 42 connected to the worm gear. Each gear transmission set 42 has an output gear 420, and each output gear 420 is connected to a massage head assembly 2. In this embodiment, by cooperating with the two gear transmission sets 42 and the worm gear 41, only one motor 3 is needed to simultaneously control the swing of two massage head assemblies 2, simplifying control and facilitating synchronized movement of the two sets of massage head assemblies 2. Furthermore, each gear transmission set 42 has multiple gear transmission pairs, forming multi-stage reduction. In other embodiments, two motors can also be used to control the swing of one massage head assembly 2 separately.

[0028] The massage head assembly 2 is fixedly connected to an eccentric inclined rod 5. The output gear 420 has a mounting hole 421 that is inclined relative to its axis of rotation. The eccentric inclined rod 5 passes through the mounting hole 421 of the output gear 420 and its end protrudes out of the housing and is connected to the massage head assembly 2. A limiting structure 6 is provided between the massage head assembly 2 and the housing 1 to limit the rotation of the massage head assembly 2 in the circumferential direction of the output gear 420, so that the eccentric inclined rod 5 and the massage head assembly 2 swing as the output gear 420 rotates.

[0029] The toothed transmission mechanism 4 and the massage head assembly 2 of this utility model are connected by an eccentric inclined rod 5 for transmission. The eccentric inclined rod 5 is inclined relative to the rotation axis of the output gear 420. The massage head assembly 2 and the housing 1 also have a limiting structure 6 to restrict its rotation along the circumference of the output gear 420. The eccentric inclined rod 5 can swing under the combined action of the output gear 420 and the limiting structure 6, thereby driving the massage head assembly 2 to swing. The overall structure is simple, which makes the operation of the massage mechanism more reliable and its lifespan longer.

[0030] See Figure 2 and Figure 2As shown, the eccentric inclined rod 5 has a first end 51 and a second end 52 opposite to each other. The first end 51 is provided with an annular flange 511, and the second end 52 protrudes from the housing 2 and is connected to the massage head assembly 2. The eccentric inclined rod 5 passes through the mounting hole 421 and its first end 51 abuts against the end face of the mounting hole 421. The diameter of the eccentric inclined rod 5 is smaller than the inner diameter of the mounting hole 420.

[0031] The eccentric rod 5 is inserted into the mounting hole 421. The annular flange 511 of its first end 51 abuts against the end face of the mounting hole 421, forming a one-way axial limit for the eccentric rod 5. Its second end 52 is fixedly connected to the massage head assembly 2, thus the eccentric rod 5 is axially restricted within the mounting hole 421. The diameter of the eccentric rod 5 is smaller than the inner diameter of the mounting hole 420, allowing the eccentric rod 5 to rotate relative to the eccentric gear 420 within the mounting hole 420, thereby driving the massage head assembly 2 to swing under the limiting action of the limiting structure 6.

[0032] The massage head assembly 2 has a connecting hole 201. The second end 52 of the eccentric inclined rod 5 is inserted into the connecting hole 201. The second end 52 of the eccentric inclined rod 5 and the massage head assembly 2 are relatively fixedly connected by a threaded connector. The threaded connector is connected to the eccentric inclined rod 5 along its axial direction. More specifically, the massage head assembly 2 includes a connector 21 and a massage component 22 that are assembled relative to each other. The connector 21 is connected to the eccentric inclined rod 5. The massage component 22 is located on the side of the connector 21 opposite to the eccentric inclined rod 5. The connecting hole 201 passes through the connector 21 and the massage component 22, and a step is formed at the massage component 22 for the bolt head to abut. The eccentric inclined rod 5 has a blind hole 521 extending along its axial direction. The bolt passes through the connecting hole 201 and is threaded into the blind hole 521, thus forming a threaded connection between the eccentric inclined rod 5 and the massage head assembly 2. The threaded connector is a bolt.

[0033] See Figures 2 to 8 As shown, the massage component 22 has two grinding heads 221, which are used to contact the massaged area for massage. The outer side of the connecting component 21 has a limiting protrusion 211, and the housing 1 has a limiting groove 11. The limiting protrusion 211 is disposed in the limiting groove 11, and the two cooperate to form a limiting structure 6. In the circumferential direction of the output gear 420, the limiting protrusion 211 and the two side walls of the limiting groove 11 abut against each other, so that the massage head assembly 2 cannot rotate along the circumferential direction of the output gear 420. The depth of the limiting groove 11 is greater than the height of the limiting protrusion 211, so that the limiting protrusion 211 slides relative to the limiting groove 11 in its depth direction as the output gear 420 rotates, so that the massage head assembly 2 swings with the rotation of the output gear 420.

[0034] The output gear 420 has a pivot hole 422 on its end face away from the massage head assembly 2. The inner surface of the housing 1 has a protruding pivot portion 12. The pivot hole 422 is located on the pivot portion 12, allowing the output gear 420 to rotate around it. The end face of the pivot hole 422 has a recess 423 connected to the mounting hole 421. The inner diameter of the recess 423 is larger than the inner diameter of the mounting hole 421, thus forming a stepped structure on the end face of the mounting hole 421. The annular flange 511 of the eccentric inclined rod 5 abuts against this stepped structure. The recess 423 accommodates the annular flange 511 of the eccentric inclined rod 5, facilitating a relative rotational connection between the pivot hole 422 of the output gear 420 and the pivot portion 12 of the housing 1, which is beneficial for the rotation of the output gear 420.

[0035] The output gear 420 has a protrusion 424 on its end face facing the massage head assembly 2, and a mounting hole 421 is provided on the protrusion 424, thereby extending the axial length of the mounting hole 421. This results in a larger transmission area between the eccentric rod 5 and the output gear 420, which is beneficial for the distribution of force, reduces the fatigue stress of the eccentric rod 5, and improves the service life of the eccentric rod 5 and the output gear 420.

[0036] Example 2

[0037] This utility model also proposes a massager, which includes a massage mechanism. The structure of the massage mechanism in this embodiment is the same as that in Embodiment 1, and will not be described again here.

[0038] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A massage mechanism, characterized in that: The device includes a housing, a massage head assembly, and a motor and a gear transmission mechanism disposed within the housing. The motor drives the massage head assembly to oscillate via the gear transmission mechanism, which includes an output gear. The massage head assembly is fixedly connected to an eccentric rod. The output gear has a mounting hole inclined relative to its axis of rotation. The eccentric rod passes through the mounting hole of the output gear. The end of the eccentric rod protrudes from the housing and connects to the massage head assembly. A limiting structure is provided between the massage head assembly and the housing to restrict the rotation of the massage head assembly in the circumferential direction of the output gear, so that the eccentric rod and the massage head assembly oscillate as the output gear rotates.

2. The massage mechanism according to claim 1, characterized in that: The eccentric inclined rod has a first end and a second end opposite to each other. The first end is provided with an annular flange, and the second end protrudes from the housing and is connected to the massage head assembly. The eccentric inclined rod passes through the mounting hole and its first end abuts against the end face of the mounting hole. The diameter of the eccentric inclined rod is smaller than the inner diameter of the mounting hole.

3. A massage mechanism according to claim 2, characterized in that: The output gear has a pivot hole on its end face away from the massage head assembly. The inner surface of the housing has a protruding pivot portion. The pivot hole is located on the pivot portion to allow the output gear to rotate around the pivot portion. The end face of the pivot hole has a recessed portion that connects to the mounting hole. The inner diameter of the recessed portion is larger than the inner diameter of the mounting hole, thereby forming a stepped structure on the end face of the mounting hole. The annular flange of the eccentric inclined rod abuts against the stepped structure.

4. A massage mechanism according to claim 3, characterized in that: The output gear has a protrusion on its end face facing the massage head assembly, and the mounting hole is provided on the protrusion, thereby extending the axial length of the mounting hole.

5. A massage mechanism according to claim 2, characterized in that: The massage head assembly is provided with a connection hole, and the second end of the eccentric inclined rod is inserted into the connection hole. The second end of the eccentric inclined rod and the massage head assembly are fixedly connected by a threaded connector, which is connected to the eccentric inclined rod along the axial direction of the eccentric inclined rod.

6. A massage mechanism according to claim 1, characterized in that: The massage head assembly includes a connector and a massage component that are assembled opposite to each other. The connector is connected to the eccentric inclined rod, and the massage component is disposed on the side of the connector opposite to the eccentric inclined rod. The massage component has two grinding heads. The outer side of the connector is provided with a limiting protrusion. The housing is provided with a limiting groove. The limiting protrusion is disposed in the limiting groove and the two cooperate to form the limiting structure.

7. A massage mechanism according to claim 6, characterized in that: In the circumferential direction of the output gear, the side walls of the limiting protrusion and the limiting groove abut against each other. The depth of the limiting groove is greater than that of the limiting protrusion, so that the limiting protrusion slides relative to the limiting groove in its depth direction as the output gear rotates, causing the massage head assembly to swing as the output gear rotates.

8. A massage mechanism according to any one of claims 1-7, characterized in that: The toothed transmission mechanism includes a worm gear connected to the motor output shaft and two gear transmission groups connected to the worm gear. Each gear transmission group is provided with an output gear, and each output gear is connected to a massage head assembly.

9. A massager, characterized in that: Includes the massage mechanism as described in any one of claims 1-8.

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