A multi-head fascia gun

Abstract

This utility model discloses a multi-head fascia gun, including a housing, a motor, an eccentric wheel, a movable frame, multiple mounting posts, and multiple flexible guide sleeves. The housing has multiple through holes. The motor is fixed inside the housing. The eccentric wheel includes a connected mounting part and an eccentric part, with the mounting part fixed to the motor's output shaft. The movable frame is located inside the housing and rotatably connected to the eccentric part. The mounting posts are rotatably connected to the movable frame, with one end extending into the through hole. The flexible guide sleeve is located at the through hole and connected to the mounting post. The multi-head fascia gun has a novel structure, changing the connection between the mounting posts and the movable frame from "fixed" to "rotatably connected," and providing a flexible guide sleeve at the through hole. This transforms the horizontal lateral force, originally rigidly transmitted to the housing, into a slight oscillation and elastic deformation of the mounting post relative to the flexible guide sleeve. The flexible guide sleeve only bears the significantly weakened radial force, and the housing no longer acts as the direct force-bearing body for horizontal oscillation. The vibration source is isolated, and noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of massage device technology, and in particular to a multi-head fascia gun. Background Technology

[0002] The multi-head fascia gun includes a main body and a motor located inside the main body. The motor shaft is connected to an eccentric component, which is rotatably connected to a movable frame. Multiple mounting posts are fixed on the movable frame, and massage heads for contacting the user's body are set on the mounting posts. The main body is provided with through holes for the mounting posts to extend out. To reduce the vibration and noise of the multi-head fascia gun itself, a protective sleeve for connecting the mounting posts is provided at the through holes.

[0003] However, since the mounting column and the movable frame are fixed and their relative positions cannot be changed, the movement trajectory of each point on the mounting column is the same as that of the eccentric component. For example, if the vertical stroke of the mounting column is 4mm, its horizontal stroke will also be accompanied by a horizontal sway of the same amplitude of 4mm. This lateral force is transmitted to the main unit through the sheath, resulting in increased vibration and noise, directly affecting the user experience. Therefore, the industry urgently needs to optimize the transmission structure of multi-head fascia guns to reduce the negative effects of parasitic movement. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a low-noise multi-head fascia gun with low self-vibration.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a multi-head fascia gun, comprising:

[0006] The housing has multiple through holes.

[0007] The motor is fixed inside the housing;

[0008] An eccentric wheel includes a connected mounting part and an eccentric part, with the mounting part fixed on the output shaft of the motor.

[0009] The movable frame is located inside the machine housing and is rotatably connected to the eccentric part.

[0010] Multiple mounting posts are rotatably connected to the movable frame, with one end of each mounting post extending into the through hole.

[0011] Multiple flexible guide sleeves are provided at the through holes and connected to the mounting posts.

[0012] In one embodiment, the motor is a dual-head motor, and there are multiple eccentric wheels and movable frames. The two ends of the output shaft of the motor are respectively connected to the eccentric wheels, and each eccentric wheel is connected to a movable frame.

[0013] In one embodiment, each of the movable frames is connected to at least two of the mounting posts.

[0014] In one embodiment, a first bearing is also included, through which the eccentric portion is connected to the movable frame.

[0015] In one embodiment, a second bearing is also included, through which the mounting column is connected to the movable frame.

[0016] In one embodiment, the device further includes a vibration damping sleeve and a fixing bracket for fixing the motor. The fixing bracket is connected to the housing, and both the fixing bracket and the housing indirectly abut against the motor through the vibration damping sleeve.

[0017] In one embodiment, the movable frame has a protrusion disposed along the axial direction of the output shaft of the motor, and the mounting post is rotatably sleeved on the protrusion.

[0018] In one embodiment, the protruding post is located on the side of the movable frame closer to the motor.

[0019] In one embodiment, the end of the mounting post away from the movable frame is provided with an annular groove that mates with the flexible guide sleeve.

[0020] In one embodiment, the end of the mounting column away from the movable frame is provided with a mounting structure for mounting a massage head.

[0021] The beneficial effects of this utility model are as follows: The multi-head fascia gun has a novel structure, changing the "fixed" connection between the mounting column and the movable frame to a "rotational connection," and setting a flexible guide sleeve at the through hole. This allows the mounting column to rotate slightly relative to the movable frame as it reciprocates periodically with the eccentric wheel. This transforms the horizontal lateral force that was originally rigidly transmitted to the housing into a slight oscillation and elastic deformation of the mounting column relative to the flexible guide sleeve. The flexible guide sleeve only bears the significantly weakened radial force, significantly suppressing the whole-machine resonance excited by the lateral force through the sleeve-housing path. The housing is no longer the direct force-bearing body for horizontal oscillation, the vibration source is isolated, and the noise is reduced accordingly. When the user holds it, they only feel the expected axial impact of the massage head, with almost no uncomfortable lateral shaking sensation, thus meeting the industry demand for a "low-noise, low-vibration" multi-head fascia gun. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a multi-head fascia gun;

[0024] Figure 2 An exploded view of a multi-head fascia gun;

[0025] Figure 3 A cross-sectional view of a multi-head fascia gun;

[0026] Figure 4 A simplified schematic diagram illustrating the working principle of a multi-head fascia gun.

[0027] Explanation of icon numbers:

[0028] 1. Housing; 11. Upper housing; 12. Lower housing; 13. Through hole;

[0029] 2. Motor; 21. Output shaft; 22. Main body;

[0030] 3. Eccentric wheel; 31. Mounting part; 32. Eccentric part;

[0031] 4. Movable frame; 41. Protruding column;

[0032] 5. Massage head;

[0033] 6. Mounting column; 61. Annular groove; 62. Mounting structure;

[0034] 7. Flexible guide sleeve;

[0035] 8. First bearing;

[0036] 9. Second bearing;

[0037] 10. Vibration-damping sheath;

[0038] 20. Fixed bracket. Detailed Implementation

[0039] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0040] 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.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0043] Furthermore, if the word "and / or" appears throughout the text, it means that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] Example 1

[0046] Please refer to Figures 1 to 4The first embodiment of this utility model is as follows: A multi-head fascia gun includes a housing 1, a motor 2, an eccentric wheel 3, a movable frame 4, a massage head 5, multiple mounting posts 6, and multiple flexible guide sleeves 7. The housing 1 is provided with multiple through holes 13. The housing 1 includes a connected upper shell 11 and a lower shell 12, and the through holes 13 are provided on the lower shell 12. The motor 2 is fixedly installed inside the housing 1, and the motor 2 has an output shaft 21. The eccentric wheel 3 includes a connected mounting part 31 and an eccentric part 32. The mounting part 31 is fixedly installed inside the housing 1. The motor 2 is fixed on the output shaft 21 of the motor 2; the movable frame 4 is located inside the housing 1 and is rotatably connected to the eccentric part 32; the mounting column 6 is rotatably connected to the movable frame 4, and one end of the mounting column 6 extends into the through hole 13; the flexible guide sleeve 7 is provided at the through hole 13 and connected to the mounting column 6, and the end of the mounting column 6 away from the movable frame 4 is connected to the massage head 5. The massage head 5 is exposed outside the housing 1. The massage head 5 can be a ball head structure, a flat head structure, or a plate structure that connects multiple mounting columns 6 at the same time.

[0047] In some embodiments, the motor 2 can be a single-head motor, that is, the main body 22 of the motor 2 is provided with the movable frame 4 at only one end. In this case, the number of eccentric wheels 3 and the number of movable frames 4 can be one or multiple at the same time. When the number of eccentric wheels 3 and movable frames 4 is multiple at the same time, they are set one-to-one. In other embodiments, the motor 2 is a double-head motor, that is, the two ends of the main body 22 of the motor 2 are respectively provided with the movable frame 4. In this case, the number of eccentric wheels 3 and movable frames 4 are multiple. The two ends of the output shaft 21 extend out of the main body 22 of the motor 2 from the two ends of the main body 22. The two ends of the output shaft 21 of the motor 2 are respectively connected to the eccentric wheels 3, and each eccentric wheel 3 is connected to a movable frame 4.

[0048] Each movable frame 4 is connected to at least two mounting posts 6. The cooperation of multiple mounting posts 6 with multiple flexible guide sleeves 7 can prevent the movable frame 4 from rotating unexpectedly relative to the eccentric wheel 3, which helps to ensure the massage effect of the multi-head fascia gun. In this embodiment, the two ends of the movable frame 4 are respectively rotatably connected to the mounting posts 6.

[0049] The multi-head fascia gun also includes a first bearing 8. The eccentric part 32 is connected to the movable frame 4 through the first bearing 8. The first bearing 8 ensures the smooth rotation of the movable frame 4 relative to the eccentric part 32, and at the same time, avoids frictional wear caused by direct contact between the eccentric part 32 and the movable frame 4.

[0050] The multi-head fascia gun also includes a second bearing 9. The mounting post 6 is connected to the movable frame 4 through the second bearing 9. The second bearing 9 ensures the smooth rotation of the mounting post 6 relative to the movable frame 4, and at the same time avoids frictional wear caused by direct contact between the mounting post 6 and the movable frame 4.

[0051] In detail, the movable frame 4 has a protruding post 41 arranged along the axial direction of the output shaft 21 of the motor 2, and the mounting post 6 is rotatably sleeved on the protruding post 41. In order to optimize the internal space layout of the multi-head fascia gun and reduce the overall volume of the multi-head fascia gun, in this embodiment, the protruding post 41 is located on the side of the movable frame 4 closer to the motor 2.

[0052] To facilitate the assembly and fixing of the mounting column 6 and the flexible guide sleeve 7, optionally, the end of the mounting column 6 away from the movable frame 4 is provided with an annular groove 61 that cooperates with the flexible guide sleeve 7.

[0053] The mounting post 6 is provided with a mounting structure 62 for mounting the massage head 5 at one end away from the movable frame 4. The mounting structure 62 can be a slot, a plug, or other form of assembly structure.

[0054] The multi-head fascia gun also includes a vibration-damping sleeve 10 and a fixing bracket 20 for fixing the motor 2. The fixing bracket 20 is connected to the housing 1. Both the fixing bracket 20 and the housing 1 indirectly contact the motor 2 through the vibration-damping sleeve 10. The vibration-damping sleeve 10 can buffer and absorb energy from the main body 22 of the motor 2, thereby improving the self-vibration phenomenon of the multi-head fascia gun. In this embodiment, the vibration-damping sleeve 10 is respectively fitted on both ends of the main body 22 of the motor 2.

[0055] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A multi-head fascia gun, characterized in that: include The housing has multiple through holes. The motor is fixed inside the housing; An eccentric wheel includes a connected mounting part and an eccentric part, with the mounting part fixed on the output shaft of the motor. The movable frame is located inside the machine housing and is rotatably connected to the eccentric part. Multiple mounting posts are rotatably connected to the movable frame, with one end of each mounting post extending into the through hole. Multiple flexible guide sleeves are provided at the through holes and connected to the mounting posts.

2. The multi-head fascia gun according to claim 1, characterized in that: The motor is a dual-head motor, and there are multiple eccentric wheels and movable frames. The two ends of the output shaft of the motor are respectively connected to the eccentric wheels, and each eccentric wheel is connected to a movable frame.

3. The multi-head fascia gun according to claim 2, characterized in that: Each of the aforementioned movable frames is connected to at least two of the aforementioned mounting posts.

4. The multi-head fascia gun according to claim 1, characterized in that: It also includes a first bearing, through which the eccentric portion is connected to the movable frame.

5. The multi-head fascia gun according to claim 1, characterized in that: It also includes a second bearing, through which the mounting column is connected to the movable frame.

6. The multi-head fascia gun according to claim 1, characterized in that: It also includes a vibration damping sleeve and a fixing bracket for fixing the motor. The fixing bracket is connected to the housing, and both the fixing bracket and the housing indirectly abut against the motor through the vibration damping sleeve.

7. The multi-head fascia gun according to claim 1, characterized in that: The movable frame has a protruding post arranged along the axial direction of the output shaft of the motor, and the mounting post is rotatably sleeved on the protruding post.

8. The multi-head fascia gun according to claim 7, characterized in that: The protruding post is located on the side of the movable frame closer to the motor.

9. The multi-head fascia gun according to claim 1, characterized in that: The end of the mounting column away from the movable frame is provided with an annular groove that mates with the flexible guide sleeve.

10. The multi-head fascia gun according to claim 1, characterized in that: The end of the mounting column away from the movable frame is provided with a mounting structure for mounting the massage head.

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