WO2020199399A1 - 一种振幅控制结构及放松器 - Google Patents

一种振幅控制结构及放松器 Download PDF

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Publication number
WO2020199399A1
WO2020199399A1 PCT/CN2019/094219 CN2019094219W WO2020199399A1 WO 2020199399 A1 WO2020199399 A1 WO 2020199399A1 CN 2019094219 W CN2019094219 W CN 2019094219W WO 2020199399 A1 WO2020199399 A1 WO 2020199399A1
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WO
WIPO (PCT)
Prior art keywords
control structure
drive source
rotating
sleeve
amplitude control
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PCT/CN2019/094219
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English (en)
French (fr)
Inventor
周志华
金泉贝
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深圳丝路电子商务科技有限公司
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Publication of WO2020199399A1 publication Critical patent/WO2020199399A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H23/00—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/02—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1207—Driving means with electric or magnetic drive

Definitions

  • the invention relates to the technical field of fitness equipment, in particular to an amplitude control structure and a relaxer.
  • the muscle relaxer is a commonly used portable instrument for relaxing muscles.
  • the internal structure of the common muscle relaxer includes: a foam shaft and a vibration component, the foam shaft is provided with a through cavity, and the vibration component includes: a housing, a motor , Pendulum and rotating bearing, wherein the shell is detachably installed in the cavity, the motor and the pendulum are installed in the shell, and the pendulum is connected with the motor output shaft, and the rotating bearing is sleeved on the end of the motor output shaft.
  • the motor is running, the pendulum is driven by the output shaft of the motor to rotate, and the vibration is output through the housing, and the vibration frequency is controlled by the motor.
  • the defect of the muscle relaxer in the prior art is that the amplitude cannot be controlled, and the influence caused by the excessive amplitude can only be reduced by an external foam shaft, so as to avoid the damage to the human body caused by the excessive amplitude.
  • the purpose of the present invention is to provide an amplitude control structure and a relaxer, which aims to solve the problem that the amplitude of the muscle relaxer in the prior art cannot be controlled.
  • the only way to reduce the excessive amplitude is by an external foam shaft. The impact caused by large amplitude avoids the problem of damage to the human body caused by excessive amplitude.
  • An amplitude control structure comprising: an inner casing, a rotating drive source and a rotating bearing, the rotating drive source is housed in the inner casing, and the rotating bearing is connected to the rotating drive source; wherein the inner casing is provided with A mounting seat, the rotating bearing is fixed to the mounting seat, and a flexible material bearing sleeve is arranged between the rotating bearing and the mounting seat.
  • the inner shell includes: a first inner shell and a second inner shell, and both sides of the first inner shell and the second inner shell extend outwardly with a first bend A plurality of first threaded connecting holes are opened on the first bending side, and the first inner shell and the second inner shell are connected by threads to form an inner shell.
  • the inner shell is made of plastic.
  • the mounting base includes: an upper mounting base and a lower mounting base, and both sides of the upper mounting base and the lower mounting base are extended outwardly with a second bending edge, and A second threaded connection hole is opened on the bent edge; a third threaded connection hole that matches the second threaded connection hole is opened on the inner shell, and the upper mounting seat and the lower mounting seat are threaded to form a mounting seat and fixed In the internal shell.
  • the mounting base is fixedly connected to the inner housing, and the inner housing is provided with support ribs at the connection point connected to the mounting base.
  • At least one supporting rib is provided on both sides of the mounting seat.
  • the mounting seat is provided with a bearing accommodating groove
  • the flexible material bearing sleeve includes: a first annular sleeve and a second annular sleeve, wherein the first annular sleeve is close to the rotation driving source.
  • the second ring sleeve faces away from the rotating drive source; the inner diameter of the first ring sleeve is adapted to the rotating bearing, the inner diameter of the second ring sleeve is adapted to the drive source output shaft, the first ring sleeve and the second ring
  • the outer diameter of the sleeve is equal to the inner diameter of the bearing accommodating groove, and the rotating bearing is accommodated in the first annular sleeve.
  • the amplitude control structure further includes a pendulum, the pendulum includes: a connecting part and a rotating part, the connecting part is connected with the rotating drive source, and the radius of the rotating part is smaller than Equal to the width of the rotating part.
  • a relaxer wherein the relaxer includes the amplitude control structure as described above.
  • the amplitude control structure provided by the present invention is provided with a mounting seat in the inner housing, a rotating bearing is fixed on the mounting seat, and a flexible material bearing sleeve is arranged between the rotating bearing and the mounting seat.
  • the rotating drive source drives the pendulum to rotate
  • the flexible material bearing sleeve will be squeezed and deformed to buffer and unload the force.
  • the swing amplitude of the bearing is controlled within the set range, thereby controlling the vibration amplitude of the pendulum within the set Within a certain range.
  • the amplitude control structure provided by the present invention can effectively solve the problem that the amplitude of the muscle relaxer in the prior art cannot be controlled, and can only reduce the impact of excessive amplitude by means of an external foam shaft, and avoid excessive amplitude from affecting the human body. The problem of damage.
  • Fig. 1 is a schematic structural diagram of a preferred embodiment of the inner casing used in the present invention.
  • Fig. 2 is a schematic structural diagram of a preferred embodiment of the amplitude control structure of the present invention.
  • Fig. 3 is a schematic structural view of a preferred embodiment of the first inner shell used in the present invention.
  • Fig. 4 is an enlarged view of part A in Fig. 3.
  • Fig. 5 is a schematic structural view of a preferred embodiment of the second inner shell used in the present invention.
  • Fig. 6 is a schematic diagram of the positional relationship of various parts in the inner casing of the present invention.
  • Fig. 7 is a schematic structural diagram of a preferred embodiment of the pendulum used in the present invention.
  • Fig. 8 is a schematic structural diagram of a preferred embodiment of a rotating drive source used in the present invention.
  • Fig. 9 is a schematic structural view of a preferred embodiment of a rotating bearing and a flexible material bearing sleeve used in the present invention.
  • the present invention provides an amplitude control structure and relaxer.
  • the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
  • the present invention provides an amplitude control structure, which is applied to a relaxer, and includes: an inner housing 100 (as shown in FIG. 1), a rotating drive source 200, the pendulum 300, the rotating bearing 400 (as shown in Figure 9), the flexible material bearing sleeve 500 and the mounting seat 600; wherein the rotating drive source 200, the rotating bearing 400, the mounting seat 600 and the flexible material bearing sleeve 500 are all set in In the cavity of the inner housing 100; the pendulum 300 and the rotating bearing 400 are sleeved on the outer edge of the output shaft of the rotating drive source 200 (such as a motor); the mounting seat 600 is integrally formed in the inner housing 100 , Or fixedly connected to the inner housing 100; the flexible material bearing sleeve 500 is arranged between the rotating bearing 400 and the mounting seat 600, and is made of flexible material.
  • the amplitude of the relaxer is related to whether it will cause damage to the human body during use. For example, if the amplitude is 2mm, the strength of the relaxer will only act on the muscles and other tissues under the human skin; if the amplitude is too large, the strength of the relaxer will be transmitted to Deep in the human body, the internal organs or bones may be damaged; therefore, it is necessary to control the amplitude of the relaxer.
  • the rotating bearing 400 when the rotating drive source 200 drives the pendulum 300 to rotate and output vibration, the rotating bearing 400 will be displaced and compress the flexible material bearing sleeve 500, because the mounting seat 600 is fixedly connected to the inner housing 100 , And the flexible material bearing sleeve 500 is made of flexible material, so the amplitude of the relaxer will be controlled within a certain range.
  • the specific control effect is affected by the parameters, material and structure of the flexible material bearing sleeve 500. Generally speaking, with the same material and structure, the greater the thickness of the flexible material bearing sleeve 500, the smaller the amplitude of the relaxer, and vice versa. The greater the amplitude of the relaxer.
  • the disassembly angle, B is the length of the driving source output shaft exposed outside the rotating driving source 200.
  • the deformation of the output shaft of the drive source is less than 2°, and when B is preferably 5 cm, the amplitude of the relaxer should be controlled within 1 mm, so as to ensure that the output shaft of the drive source will not be broken due to the deformation, and to ensure the relaxer
  • the amplitude is less than 2 mm and will not cause harm to the human body.
  • the inner shell 100 includes: a first inner shell 110 (FIG. 3 is a schematic structural diagram of the first inner shell) and a second inner shell 120 (FIG. 5 is a second inner shell)
  • the schematic structure diagram of the housing preferably the body of the first inner housing 110 and the body of the second inner housing 120 are both semicircular, and the two are buckled and connected to form the body of the inner housing 100 (in a circular shape).
  • the shaped inner housing 100 body can ensure the uniformity of vibration output.
  • this is not the only solution for the body shape of the first inner shell and the second inner shell 120, and other solutions can be selected, such as setting the body of the first inner shell to have a quarter cross section.
  • the body of the second inner shell 120 is set in a shape of a quarter circle in cross section; for example, the body of the first inner shell is set to a cylindrical structure (hollow) without the second inner shell 120
  • the second inner shell 120 after fixing the components such as the rotating drive source 200 and the pendulum 300 on an arc-shaped plate, directly insert and fix the arc-shaped plate into the body of the first inner shell; Can replace the above-mentioned preferred solution.
  • the body of the inner casing 100 may also choose not to be circular, and the elliptical structure that is more approximate to a circular shape will not affect the user experience to a certain extent. Therefore, the above-mentioned preferred solution is only a preferred structure among the many solutions of the present invention, and the protection scope of the present invention should not be considered as limited to this. All technical solutions implemented according to the inventive idea of the present invention should be regarded as belonging to the present invention. The scope of protection.
  • both sides of the first inner shell 110 and the second inner shell 120 are provided with a first bending edge 111 extending outward, and A plurality of first threaded connection holes 112 are opened on the bending edge 111, and the first inner shell 110 and the second inner shell 120 are connected by threads to form the inner shell 100.
  • the two inner shells are usually connected by a threaded connection column, and a through hole is opened in the other inner shell, and the connection is directly screwed into the screw; but this connection method is The fatigue strength is not high, and it is easy to be damaged when the vibration frequency is high.
  • the present invention is connected by the first bending edge 111, one has enough space to increase the number of the first threaded connection holes 112, and the second is controlled by the distance between the connection point and the vibration center, which can attenuate the higher vibration frequency to the greatest extent. The impact.
  • reinforcing ribs may be provided on the inner wall and/or the outer wall of the inner shell 100 to improve the strength of the inner shell 100.
  • the inner housing 100 is made of plastic.
  • plastic has high toughness and reliability, and is suitable for transmitting vibration.
  • the material of the inner casing 100 is a mixed material of ABS plastic and PC plastic (it is easy to understand that the material of the inner casing 100 is not limited to this, and other alternative materials are also possible).
  • Two accommodating grooves are provided on the inner side of the inner casing 100, namely a battery accommodating groove 115 and a driving source accommodating groove 114, and a plurality of ribs 113 are provided on the periphery of the battery accommodating groove 115 and/or the driving source accommodating groove 114.
  • the mounting base 600 is fixedly connected to the inner housing 100, and the inner housing 100 is provided with at least one supporting rib at the connection (the connection with the mounting base 600).
  • the supporting ribs can be arranged To increase the strength of the connection, the location and number of the connection should be enough to withstand the maximum centrifugal force of the rotating bearing 400.
  • a plurality of supporting ribs are provided, and the plurality of supporting ribs respectively extend from the connection to the periphery in multiple directions to form the structure of the guard connection and improve the strength strengthening effect.
  • the mounting base 600 includes: an upper mounting base 610 and a lower mounting base 620, and both sides of the upper mounting base 610 and the lower mounting base 620 are extended outwardly with second bends.
  • the inner housing 100 is provided with a third threaded connection hole that matches the second threaded connection hole, and the mounting upper seat 610 and the mounting lower seat are provided with a second threaded connection hole on the second bending side;
  • the 620 is screwed to form a mounting seat 600 and fixed to the inner housing 100.
  • the setting of the second bending edge facilitates the installation and fixation of the mounting seat 600, and the mounting seat 600 is divided into the upper seat 610 and the lower seat 620, which is convenient for the installation of the flexible material bearing sleeve 500 and the rotating bearing 400, and the second is to ensure flexibility
  • the material bearing sleeve 500 and the rotating bearing 400 are completely wrapped in the mounting seat 600 to ensure operational stability and prevent the axial position of the rotating bearing 400 from shifting during movement (if the mounting seat 600 is set in a cylindrical shape, And the flexible material bearing sleeve 500 and the rotating bearing 400 are installed from the side, the rotating bearing 400 is likely to move along the axis of the drive source output shaft 210 (as shown in Figure 6) under the action of vibration, which will accumulate for a long time. It may damage the instrument and harm the human body).
  • threaded connection in all the above embodiments can be equivalently replaced with other connection methods, such as lock connection, snap connection, spline connection and so on.
  • a threaded connection post 116 is formed inside the inner housing 100 (a gap is reserved between the threaded connection post and the inner wall of the inner housing 100), and the third threaded connection hole is opened On the threaded connecting column, the supporting rib 117 extends from the threaded connecting column 116 to the side wall and bottom wall of the inner housing 100.
  • the rotating drive source 200 and the battery 700 are housed at both ends of the inner housing 100, and the pendulum 300 is located in the middle of the inner housing 100 to ensure the uniformity of vibration of the entire relaxer.
  • the pendulum 300 includes a connecting portion 310 and a rotating portion 320.
  • the radius of the rotating portion 320 is smaller than It is equal to the width of the rotating part 320, and the length of the cycloid is shortened while ensuring the mass of the pendulum 300 (thus ensuring the centrifugal force).
  • the connecting portion 310 is connected to the rotating driving source 200, and the connecting portion 310 is sleeved on the outer edge of the output shaft of the driving source.
  • the present invention is provided with a positioning plane 311 (as shown in FIG. 7) in the connecting hole of the connecting portion 310, and the driving source output shaft fitting positioning plane 311 is provided with a fitting plane (as shown in FIG. Shown);
  • the present invention sets the number of positioning planes 311 to one.
  • the diameter of the end of the drive source output shaft (the end is indicated by 212 in FIG. 8) is smaller than the diameter of the middle part of the drive source output shaft (the middle part is indicated by 211 in FIG. 8), that is, the drive source
  • the diameter of the middle of the output shaft is larger to ensure the strength of the drive source output shaft; the diameter of the end of the drive source output shaft is smaller to minimize the size of the rotating bearing 400, reduce the rotating bearing 400, the flexible material bearing sleeve 500 and installation Block 600 takes up space.
  • the mounting seat 600 is provided with a bearing accommodating groove
  • the flexible material bearing sleeve 500 includes: a first ring sleeve and a second ring sleeve.
  • An annular sleeve is close to the rotating drive source 200 and the second annular sleeve is away from the rotating drive source 200; the inner diameter of the first annular sleeve is adapted to the rotating bearing 400, and the inner diameter of the second annular sleeve is adapted to the output of the drive source
  • the outer diameters of the shaft, the first annular sleeve and the second annular sleeve are all equal to the inner diameter of the bearing receiving groove, and the rotating bearing 400 is accommodated in the first annular sleeve.
  • the rotating bearing 400 is completely included in the flexible material bearing sleeve 500 except for the mounting side.
  • the flexible material bearing sleeve 500 can not only play the role of circumferential buffering, but also play the role of radial buffering (away from the rotating drive source 200). side).
  • the present invention also provides a relaxer, which includes the amplitude control structure as described above.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本发明公开了一种振幅控制结构及放松器，其中，振幅控制结构设置有内部壳体，内部壳体中设置有安装座，转动轴承固定于所述安装座，且转动轴承与安装座之间设置有柔性材料轴承套。当转动驱动源带动摆锤转动时，柔性材料轴承套将受挤压变形，进行缓冲卸力，配合安装座将轴承的摆动幅度控制在设定范围内，从而将摆锤的振动幅度控制在设定范围内。因此，本发明所提供的振幅控制结构，可有效解决现有技术中的肌肉放松器振幅无法控制，只能通过外置泡沫轴的方式减轻振幅过大带来的影响，避免振幅过大对人体产生损伤的问题。

Description

一种振幅控制结构及放松器 技术领域
本发明涉及健身器材技术领域，尤其涉及的是一种振幅控制结构及放松器。
背景技术
肌肉放松器是一种常用的用于放松肌肉的便携仪器，常见的肌肉放松器内部结构包括：泡沫轴和震动组件，所述泡沫轴设有通腔，所述震动组件包括：壳体、电机、摆锤及转动轴承，其中，壳体可拆卸的安装于通腔内，电机和摆锤安装于壳体内，且摆锤与电机输出轴相连接，转动轴承套设在电机输出轴的末端。当电机运行时，摆锤在电机输出轴的带动下转动，产生振动后通过壳体输出，振动频率由电机控制。
现有技术中肌肉放松器的缺陷在于：振幅无法控制，只能通过外置泡沫轴的方式减轻振幅过大带来的影响，避免振幅过大对人体产生损伤。
可见，现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种振幅控制结构及放松器，旨在解决现有技术中的肌肉放松器振幅无法控制，只能通过外置泡沫轴的方式减轻振幅过大带来的影响，避免振幅过大对人体产生损伤的问题。
本发明的技术方案如下：
一种振幅控制结构，包括：内部壳体、转动驱动源及转动轴承，所述转动驱动源收容于内部壳体，所述转动轴承与转动驱动源相连接；其中，所述内部壳体设置有安装座，所述转动轴承固定于所述安装座，且转动轴承与安装座之间设置有柔性材料轴承套。
在本发明进一步地优选方案中，所述内部壳体包括：第一内壳及第二内壳，所述第一内壳及第二内壳的两侧皆向外延伸设置有第一折弯边，并在第一折弯边上开设有多个第一螺纹连接孔，第一内壳与第二内壳通过螺纹连接后形成内部壳体。
在本发明进一步地优选方案中，所述内部壳体由塑料制作而成。
在本发明进一步地优选方案中，所述安装座包括：安装上座及安装下座，所述安装上座及安装下座的两侧皆向外延伸设置有第二折弯边，并在第二折弯边上开设有第二螺纹连接孔；所述内部壳体上开设有与第二螺纹连接孔相适配的第三螺纹连接孔，所述安装上座及安装下座通过螺纹连接后形成安装座并固定于内部壳体。
在本发明进一步地优选方案中，所述安装座固定连接于内部壳体，所述内部壳体在与安装座相连接的连接处设置有支撑筋。
在本发明进一步地优选方案中，所述安装座的两侧皆设置有至少一个支撑筋。
在本发明进一步地优选方案中，所述安装座开设有轴承收容槽，所述柔性材料轴承套包括：第一圆环套及第二圆环套，其中第一圆环套靠近转动驱动源而第二圆环套背离转动驱动源；所述第一圆环套的内径适配于转动轴承，第二圆环套的内径适配于驱动源输出轴，第一圆环套与第二圆环套的外径皆等于所述轴承收容槽的内径，所述转动轴承收容于第一圆环套。
在本发明进一步地优选方案中，所述振幅控制结构还包括：摆锤，所述摆锤包括：连接部及转动部，所述连接部与转动驱动源相连接，所述转动部的半径小于等于转动部的宽度。
在本发明进一步地优选方案中，所述柔性材料轴承套的厚度计算公式为：A＝2*tanC*B，其中A表示柔性材料轴承套的厚度，C表示驱动源输出轴的最大允许弯拆角度，B为驱动源输出轴裸露在转动驱动源外的长度。
一种放松器，其中，所述放松器包括如上所述的振幅控制结构。
与现有技术相比，本发明提供的振幅控制结构，其内部壳体中设置有安装座，转动轴承固定于所述安装座，且转动轴承与安装座之间设置有柔性材料轴承套。当转动驱动源带动摆锤转动时，柔性材料轴承套将受挤压变形，进行缓冲卸力，配合安装座将轴承的摆动幅度控制在设定范围内，从而将摆锤的振动幅度控制在设定范围内。因此，本发明所提供的振幅控制结构，可有效解决现有技术中的肌肉放松器振幅无法控制，只能通过外置泡沫轴的方式减轻振幅过大带来的影响，避免振幅过大对人体产生损伤的问题。
附图说明
图1是本发明所用内部壳体较佳实施例的结构示意图。
图2是本发明中振幅控制结构较佳实施例的结构示意图。
图3是本发明中所用第一内壳较佳实施例的结构示意图。
图4是图3中局部A的放大图。
图5是本发明中所用第二内壳较佳实施例的结构示意图。
图6是本发明中内部壳体中各零件位置关系示意图。
图7是本发明所用摆锤较佳实施例的结构示意图。
图8是本发明所用转动驱动源较佳实施例的结构示意图。
图9是本发明所用转动轴承与柔性材料轴承套较佳实施例的结构示意图。
具体实施方式
本发明提供一种振幅控制结构及放松器，为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实例对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明的具体实施方式是为了便于对本发明的构思、所解决的技术问题、构成技术方案的技术特征和带来的技术效果做更为详细的说明。需要说明的是，对于这些实施方式的解释说明并不构成对本发明保护范围的限定。此外，下文所述的实施方式中所涉及的技术特征只要彼此之间不构成冲突就可以相互组合。
如图1、图2及图6所示，本发明提供了一种振幅控制结构，所述振幅控制结构应用于放松器，其包括：内部壳体100(如图1所示)、转动驱动源200、摆锤300、转动轴承400(如图9所示)、柔性材料轴承套500及安装座600；其中，转动驱动源200、转动轴承400、安装座600及柔性材料轴承套500皆设置于所述内部壳体100的腔体中；所述摆锤300及转动轴承400套设于转动驱动源200(比如电机)的输出轴的外缘；所述安装座600一体成型于内部壳体100，或者固定连接于内部壳体100；所述柔性材料轴承套500设置在转动轴承400与安装座600之间，且由柔性材料制作而成。
放松器的振幅关乎使用时是否会对人体造成损伤，比如振幅为2mm，则放松器的力度只会作用至人体表皮下的肌肉等组织；而如果振幅过大，则放松器的力 度会传递至人体深处，可能会损伤人体内脏或骨骼等等；因此，控制放松器的振幅是十分有必要的。
在本发明提供的优选实施例中，当转动驱动源200带动摆锤300旋转输出振动时，转动轴承400将发生位移，并压缩柔性材料轴承套500，由于安装座600固定连接于内部壳体100，且柔性材料轴承套500由柔性材料制作而成，因此，放松器的振幅将被控制在一定范围内。具体的控制效果受柔性材料轴承套500参数、材质及结构的影响，通常而言，在材质及结构相同的情况下，柔性材料轴承套500的厚度越大，放松器的振幅越小，反之则放松器的振幅越大。
作为对上述实施例的进一步说明，所述柔性材料轴承套500的厚度计算公式为：A＝2*tanC*B，其中A表示柔性材料轴承套500厚度，C表示驱动源输出轴的最大允许弯拆角度，B为驱动源输出轴裸露在转动驱动源200外的长度。驱动源输出轴的形变小于2°，而B优选为5厘米时，放松器的振幅应当控制在1毫米以内，这样既可以保证驱动源输出轴不会因为形变而断裂，又可以保证放松器的振幅小于2毫米，不会对人体产生损害。
在本发明地较佳实施例中，所述内部壳体100包括：第一内壳110(图3是第一内壳的示意性结构示意图)及第二内壳120(图5是第二内壳的示意性结构示意图)，优选第一内壳110的本体及第二内壳120的本体皆呈半圆形，二者扣合连接后形成内部壳体100的本体(呈圆形)，圆形的内部壳体100本体可保证振动输出的均匀性。
可以理解的是，第一内壳的本体及第二内壳120的本体形状设置并非只有这一种方案，还可以选择其他方案，比如将第一内壳的本体设置为横截面为四分之三圆的形状，而将第二内壳120的本体设置为横截面为四分之一圆的形状；又比如将第一内壳的本体设置为圆筒形结构(中空)，而不设置第二内壳120，在将转动驱动源200、摆锤300等零部件固定在一弧形板上之后，直接将该弧形板插入并固定在第一内壳的本体中；等等诸多方案皆可替代上述较佳方案。
另外，内部壳体100的本体也可以选择不设置为圆形，较为近似圆形的椭圆形结构在一定程度上并不会影响用户体验。因此，上述较佳方案只是本发明诸多方案中的一种优选结构，不应当认为本发明的保护范围被局限于此，所有依据本发明的发明思路实现的技术方案，皆应视作属于本发明的保护范围。
在本发明进一步地较佳实施例中，如图3所示，所述第一内壳110及第二内壳120的两侧皆向外延伸设置有第一折弯边111，并在第一折弯边111上开设有多个第一螺纹连接孔112，第一内壳110与第二内壳120通过螺纹连接后形成内部壳体100。现有技术中两个内壳通常采用的连接方式为：在其中一个内壳设置螺纹连接柱，而在另一个内壳开设通孔，通过直接拧入螺钉的方式连接；但这种连接方式的抗疲劳强度并不高，在振频较高的情况下，很容易损坏。而本发明通过第一折弯边111连接，一则有足够的空间增设第一螺纹连接孔112的数量，二则通过连接点与振动中心的距离控制，可在最大程度上削弱振频较高带来的影响。
在本发明进一步地较佳实施例中，内部壳体100的内壁和/或外壁上皆可设置加强筋以提高内部壳体100的强度。
另外，优选所述内部壳体100由塑料制作而成，相较而言，塑料的韧性及可靠性较高，适宜传递振动。具体地，内部壳体100的材质为ABS塑料与PC塑料的混合材质(很容易理解，内部壳体100的材质不仅局限与此，其他替代材料亦可)。
内部壳体100的内侧设置有两个收容槽，分别为电池收容槽115及驱动源收容槽114，并在电池收容槽115和/或驱动源收容槽114的周缘设置有若干筋条113。
作为本发明的其中一个优选实施例，安装座600固定连接于内部壳体100，而内部壳体100在连接处(与安装座600的连接处)设置有至少一个支撑筋，支撑筋的设置可以提高连接处的强度，其设置位置及数量应当足以承受转动轴承400的最大离心力。
优选地，支撑筋设置有多个，多个支撑筋分别由连接处向周缘多个方向延伸，以形成拱卫连接处的结构，提高强度加强效果。
如图6所示，较佳地是，所述安装座600包括：安装上座610及安装下座620，所述安装上座610及安装下座620的两侧皆向外延伸设置有第二折弯边，并在第二折弯边上开设有第二螺纹连接孔；所述内部壳体100上开设有与第二螺纹连接孔相适配的第三螺纹连接孔，所述安装上座610及安装下座620通过螺纹连接后形成安装座600并固定于内部壳体100。第二折弯边的设置便于安装座600的安装固定，而将安装座600分设为安装上座610及安装下座620一则便于柔性材料轴承套500及转动轴承400的安装，二则可保证柔性材料轴承套500及转动轴承400完全包裹在安装座600内，进而保证运行稳定性，防止转动轴承400在运动过程中发生轴向 位置上的偏移(若将安装座600设置为圆筒状，并从侧面装入柔性材料轴承套500及转动轴承400，则转动轴承400很可能在振动作用下，沿驱动源输出轴210(如图6所示)的轴心线移动，长时间的累加作用可能导致仪器损坏，伤害人体)。
不难理解的是，上述所有实施例中的螺纹连接皆可等同替换为其他连接方式，比如锁扣连接、卡扣连接、花键连接等等。
在具体实施时，如图4所示，所述内部壳体100内侧形成有螺纹连接柱116(螺纹连接柱与内部壳体100内壁之间预留有间隙)，所述第三螺纹连接孔开设于所述螺纹连接柱，而支撑筋117则由螺纹连接柱116延伸至内部壳体100的侧壁及底壁。
作为本发明的优选实施例，所述转动驱动源200及电池700收容于内部壳体100的两端，摆锤300位于内部壳体100的中部，以保证整个放松器的振动均匀性。
根据本发明的另一方面，考虑到摆锤300的参数对于振幅的影响，本发明设置摆锤300包括：连接部310及转动部320，如图7所示，所述转动部320的半径小于等于转动部320的宽度，在保证摆锤300质量(从而保证离心力的大小)的同时缩短摆线长度。
所述连接部310与转动驱动源200相连接，连接部310套设在驱动源输出轴的外缘。为了便于摆锤300的安装定位，本发明在连接部310的连接孔内设置有定位平面311(如图7所示)，驱动源输出轴适配定位平面311设置有贴合平面(如图8所示)；为了在便于安装的同时保证连接部310的强度，本发明设置定位平面311数量为一个。
作为上述实施例的改进，所述驱动源输出轴的末端(其末端在图8中以212标示)直径小于驱动源输出轴的中部(其中部在图8中以211标示)直径，即驱动源输出轴中部的直径较大，以保证驱动源输出轴的强度；驱动源输出轴末端的直径较小，以尽可能缩小转动轴承400的尺寸，减小转动轴承400、柔性材料轴承套500及安装座600的占用空间。
如图9所示，在本发明地较佳实施例中，所述安装座600开设有轴承收容槽，所述柔性材料轴承套500包括：第一圆环套及第二圆环套，其中第一圆环套靠近转动驱动源200而第二圆环套背离转动驱动源200；所述第一圆环套的内径适配于转动轴承400，第二圆环套的内径适配于驱动源输出轴，第一圆环套与第二圆环套的外径皆等于所述轴承收容槽的内径，所述转动轴承400收容于第一圆环套。 转动轴承400除装入侧外，完全包括在柔性材料轴承套500内，柔性材料轴承套500除起到周向缓冲的作用外，还能起到径向缓冲的作用(背离转动驱动源200一侧)。
本发明还提供了一种放松器，所述放松器包括如上所述的振幅控制结构。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

  1. 一种振幅控制结构，包括：内部壳体、转动驱动源及转动轴承，所述转动驱动源收容于内部壳体，所述转动轴承与转动驱动源相连接；其特征在于，所述内部壳体设置有安装座，所述转动轴承固定于所述安装座，且转动轴承与安装座之间设置有柔性材料轴承套。
  2. 根据权利要求1所述的振幅控制结构，其特征在于，所述内部壳体包括：第一内壳及第二内壳，所述第一内壳及第二内壳的两侧皆向外延伸设置有第一折弯边，并在第一折弯边上开设有多个第一螺纹连接孔，第一内壳与第二内壳通过螺纹连接后形成内部壳体。
  3. 根据权利要求1所述的振幅控制结构，其特征在于，所述内部壳体由塑料制作而成。
  4. 根据权利要求1所述的振幅控制结构，其特征在于，所述安装座包括：安装上座及安装下座，所述安装上座及安装下座的两侧皆向外延伸设置有第二折弯边，并在第二折弯边上开设有第二螺纹连接孔；所述内部壳体上开设有与第二螺纹连接孔相适配的第三螺纹连接孔，所述安装上座及安装下座通过螺纹连接后形成安装座并固定于内部壳体。
  5. 根据权利要求1所述的振幅控制结构，其特征在于，所述安装座固定连接于内部壳体，所述内部壳体在与安装座相连接的连接处设置有支撑筋。
  6. 根据权利要求1所述的振幅控制结构，其特征在于，所述安装座的两侧皆设置有至少一个支撑筋。
  7. 根据权利要求1所述的振幅控制结构，其特征在于，所述安装座开设有轴承收容槽，所述柔性材料轴承套包括：第一圆环套及第二圆环套，其中第一圆环套靠近转动驱动源而第二圆环套背离转动驱动源；所述第一圆环套的内径适配于转动轴承，第二圆环套的内径适配于驱动源输出轴，第一圆环套与第二圆环套的外径皆等于所述轴承收容槽的内径，所述转动轴承收容于第一圆环套。
  8. 根据权利要求1所述的振幅控制结构，其特征在于，所述振幅控制结构还包括：摆锤，所述摆锤包括：连接部及转动部，所述连接部与转动驱动源相连接，所述转动部的半径小于等于转动部的宽度。
  9. 根据权利要求1所述的振幅控制结构，其特征在于，所述柔性材料轴承套的厚度计算公式为：A＝2*tanC*B，其中A表示柔性材料轴承套的厚度，C表 示驱动源输出轴的最大允许弯拆角度，B为驱动源输出轴裸露在转动驱动源外的长度。
  10. 一种放松器，其特征在于，所述放松器包括如权利要求1至9中任意一项所述的振幅控制结构。
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