massager

Abstract

A massage device (1), characterized in that it comprises: a sleeve (10); wherein the sleeve (10) is provided with an internally arranged receiving space (11); the sleeve (10) has at its two axially opposite ends a first opening (13) and a second opening (15) which communicate with the receiving space (11); a flexible element (20) which is at least partially arranged in the receiving space (11); a length-adjustable element (30); wherein the length-adjustable element (30) is arranged at least partially in the receiving space (11) and is arranged together with the flexible element (20) along a direction from the first opening (13) to the second opening (15); and a vacuum drive element (40); wherein the vacuum drive element (40) is connected to the first opening (13) of the sleeve (10) and serves to generate a vacuum in the sleeve (10) in order to move the flexible element (20) towards the first opening (13) and to move the length-adjustable element (30) towards the first opening (13).

Description

Technical area

[0001] The present application relates to the technical field of electronics, in particular to a massage device. State of the art

[0002] With rising living standards and increasing health awareness, the demand for massage devices is continuously growing. Conventional portable massage devices, however, can only provide simple vibration massages, meaning their massage movements are relatively uniform and lack deep tissue relaxation. This circumstance presents certain limitations with regard to the user experience. Contents of this application

[0003] A massage device comprising: a sleeve; the sleeve being provided with an internally arranged receiving space; the sleeve having at its two axially opposite ends a first opening and a second opening communicating with the receiving space; a flexible element arranged at least partially in the receiving space; a length-adjustable element; wherein the length-adjustable element is arranged at least partially in the receiving space and is arranged together with the flexible element along a direction from the first opening to the second opening; and a vacuum drive element; wherein the vacuum drive element is in communication with the first opening of the sleeve and serves to create a vacuum in the sleeve to move the flexible element towards the first opening and to move the length-adjustable element towards the first opening.

[0004] The massager can provide a more pleasant massage experience. Short description of the drawings Fig. 1 is a structural schematic diagram of a massage device according to some embodiments of the present application. Fig. 2 is an exploded view of the Fig. 1 shown massager. Fig. 3 is a structural schematic representation of the Fig. 2 shown massager from a different angle. Fig. 4 is a sectional view of the Fig. 3 shown massager along the direction AA. Fig. Figure 5 is an enlarged schematic representation of part A of the Fig. 4 shown massager. Detailed description of the embodiments

[0005] With reference to Fig. 1 and Fig. 2, the massage device 1 comprises a sleeve 10, a flexible element 20, a length-adjustable element 30, and a vacuum drive element 40. In conjunction with the Fig. 3 and Fig. 4, the sleeve 10 is provided with an internally arranged receiving space 11, wherein the sleeve 10 has at each of its two axially opposite ends a first opening 13 and a second opening 15 which are connected to the receiving space 11; the flexible element 20 is at least partially arranged in the receiving space 11; the length-adjustable element 30 is at least partially arranged in the receiving space 11 and is arranged together with the flexible element 20 in the direction from the first opening 13 to the second opening 15; the vacuum drive element 40 is connected to the first opening 13 of the sleeve 10 and can generate a vacuum in the sleeve 10 in order to move the flexible element 20 in the direction of the first opening 13 and to move the length-adjustable element 30 in the direction of the first opening 13.

[0006] For example, the flexible element 20 consists of a flexible material that can be deformed under the action of a force, for example by stretching, and can return to its original state after the force is removed.

[0007] For example, the length-adjustable element 30 can be deformed and deformed under the action of a force, for example by compression, and return to its initial state after the force is removed.

[0008] For example, the vacuum drive element 40 is connected to the sleeve 10 via the first opening 13. When the vacuum drive element 40 is activated, a vacuum is created in the sleeve 10, which moves the flexible element 20 toward the first opening 13 due to the air pressure difference. The deformed flexible element 20 can then contact the length-adjustable element 30 and move it toward the first opening 13. That is, the vacuum drive element 40 drives the flexible element 20 directly toward the first opening 13 and indirectly, via the flexible element 20, drives the length-adjustable element 30 toward the first opening 13 to move.

[0009] For example, when the vacuum drive element 40 draws air through the first opening 13, the air pressure inside the sleeve 10 is reduced, and the external air pressure is greater than the internal negative pressure, resulting in a pressure difference on both sides of the flexible element 20. The external atmospheric pressure forces a portion of the flexible element 20 located inside the sleeve 10 into deformation, causing the deformed portion to move toward the first opening 13, i.e., toward the vacuum drive element 40, resulting in an extension of the axial length of the flexible element 20; at the same time, the flexible element 20 contracts inward during the axial extension.Since the flexible element 20 is limited by the sleeve 10, the flexible element 20 contracts towards the interior of the sleeve 10, whereby the flexible element 20 experiences a radial contraction towards the interior of the sleeve 10 as it extends towards the first opening 13. When the vacuum drive element 40 ceases to operate, the flexible element 20 returns to its original state due to its elastic properties and shortens in the axial direction and expands in the radial direction until it reaches its initial state. For example, when a spot to be massaged (e.g.When an object (e.g., finger, penis) is located inside the flexible element 20 and the vacuum drive element 40 is operating, the flexible element 20 extends in the axial direction and contracts in the radial direction, tightly enclosing the area to be massaged inside the flexible element 20, and the area to be massaged is pulled and compressed by the flexible element 20. When the vacuum drive element 40 stops working, the flexible element 20 shortens in the axial direction and expands in the radial direction, so that the area to be massaged can be easily removed from the flexible element 20. The vacuum drive element 40 can generate a periodically changing negative pressure, whereby the deformation of the flexible element 20 also changes periodically, thus exerting a massage effect on the area to be massaged.

[0010] For example, the massage device 1 further comprises a vibration element 70 arranged in the receiving space 11 and connected to the length-adjustable element 30. When a negative pressure is generated in the sleeve 10, the vibration element 70 can be connected to the flexible element 20. When the length-adjustable element 30, the vibration element 70, and the flexible element 20 are all arranged in the sleeve 10, the vibration element 70 can bear against an end of the flexible element 20 that is remote from the second opening 15, whereby the vibration element 70 can generate vibrations and act on the end of the flexible element 20 that is remote from the second opening 15.

[0011] The vibrating element 70 is connected to the length-adjustable element 30. When a negative pressure develops inside the sleeve 10, the part of the flexible element 20 located inside the sleeve 10 deforms, and the deformed part moves toward the first opening 13 and rests against the vibrating element 70. At this time, the vibrating element 70 can transmit the vibrations to the flexible element 20, which in turn transmits them to the area to be massaged inside the flexible element 20. This enhances the massage effect of the massager 1 and provides the user with a richer usage experience. During vibration, the vibrating element 70 further transmits the vibration to the length-adjustable element 30, which absorbs this vibration using its elastic element 34, thereby reducing the vibration of the sleeve 10 and thus also reducing the vibration of the hand holding the sleeve 10.In some examples, the vibrating element 70 is disposed adjacent the center of the end of the flexible element 20 remote from the second opening 15. In other examples, the vibrating element 70 may be disposed adjacent a location on the end of the flexible element 20 remote from the second opening 15 other than the center.

[0012] For example, the vibration element 70 can be arranged in the length-adjustable element 30 and in proximity to the flexible element 20. For example, the vibration element 70 is arranged in a cavity 325 of the length-adjustable element 30. The vibration element 70 can comprise a motor and an eccentric wheel, wherein the motor is attached to the length-adjustable element 30 and the eccentric wheel can be driven by the motor to generate rotation and thus vibration. The vibration element 70 can otherwise be arranged between the length-adjustable element 30 and the flexible element 20.In some embodiments, when a negative pressure is created in the sleeve 10, the portion of the flexible element 20 disposed within the sleeve 10 is deformed, and the deformed portion moves toward the first opening 13, wherein the vibrating element 70 and the length-adjustable element 30 are jointly driven by the flexible element 20 and move toward the first opening 13. That is, the flexible element 20 deforms and moves toward the first opening 13, and also drives the interconnected vibrating element 70 and length-adjustable element 30 toward the first opening.

[0013] For example, the length-adjustable element 30 comprises a length-adjustable body 32 and an elastic element 34; wherein the length-adjustable body 32 is telescopically extendable and retractable along the axis of the sleeve 10, and the elastic element 34 is attached to the length-adjustable body 32 such that the elastic element 34 is elastically deformed upon compression of the length-adjustable body 32.

[0014] For example, the length-adjustable body 32 is compressed and deformed under the drive of the flexible element 20, which also compresses and deforms the elastic element 34 attached to the length-adjustable body 32. The elastic element 34 comprises, for example, a coil spring, an elastic gel, etc. The elastic element 34 stores the deformation energy. When the negative pressure generated by the vacuum drive element 40 decreases or other conditions occur, the elastic element 34 releases the stored elastic energy and drives the length-adjustable body 32 in the axial direction in the opposite direction, so that it returns to the extended state.For example, the elastic element 34 is made of a hard material such as a spring, and the length-adjustable body 32 is made of a flexible material, wherein the elastic element 34 is confined inside the length-adjustable body 32. The elastic element 34 can support the length-adjustable body 32 to prevent the length-adjustable body 32 from tipping, and when both the elastic element 34 and the length-adjustable body 32 are moved toward the first opening 13 by the flexible element 20, the elastic element 34 can limit the direction of movement of the length-adjustable body 32, that is, it can be stably compressed and deformed along the axis of the sleeve 10.

[0015] For example, the elastic element 34 extends along the first opening 13 toward the second opening 15, the elastic element 34 having an internally disposed hollow channel, and the elastic element 70 containing an elastic material such as a hollow spring or silicone. For example, when the vibrating element 70 is moved by the deformed flexible element 20 toward the first opening 13, its movement is confined within the hollow channel defined by the elastic element 34. When the elastic element 34 is in a stretched state, at least a portion of the vibrating element 70 remote from the flexible element 20 is confined within the hollow channel of the elastic element 34. The vibrating element 70 can move entirely along the axis of the sleeve 20 within the hollow channel.

[0016] It is understood that the length-adjustable body 32 may comprise two parts, one part serving to arrange the elastic element 34 and the other part serving to attach the vibration element 70.

[0017] For example, the length-adjustable element 30 is detachably connected to the sleeve 10, meaning that the length-adjustable element 30 can be inserted into and removed from the sleeve 10. This facilitates cleaning of the sleeve.

[0018] For example, the length-adjustable body 32 comprises a plurality of convex rings 322 and connecting portions 324, each connecting corresponding two adjacent convex rings 322, wherein the connecting portions 324 are deformable to telescopically extend and retract the length-adjustable body 32.

[0019] The length-adjustable body 32 has a structure in which the plurality of convex rings 322 and the flexible connecting portions 324 are arranged alternately. For example, the plurality of convex rings 322 can be distributed at equal or unequal intervals. Under axial compressive load, the connecting portions 324 deform, while the convex rings 322 retain their shape, thereby limiting the total compression displacement to the deformation range of the connecting portions 324. The convex rings 322 are relatively rigid and do not deform easily, while the connecting portions 324 are relatively soft and deform easily.

[0020] For example, the length-adjustable body 32 comprises a plurality of convex rings 322 and connecting elements 324, each connecting corresponding two adjacent convex rings 322, wherein the convex rings 322 and the connecting elements 324 are deformable in order to telescopically extend and retract the length-adjustable body 32.

[0021] For example, both the convex rings 322 and the connecting elements 324 of the length-adjustable body 32 are deformable, so that under axial compressive load, both the convex rings 322 and the connecting elements 324 deform, and the coordinated deformation of both parts improves compression. The strength of the convex rings 322 can be reduced in various ways so that they deform together with the connecting elements 324. For example, the convex rings 322 can be made less strong by making them thinner, adding recesses or weakening holes, or using a lower-strength material.

[0022] For example, a side wall of the length-adjustable body 32 is provided with a spiral receiving groove 321, and the elastic member 34 is spiral-shaped and arranged in the receiving groove 321.

[0023] The length-adjustable body 32 is provided with the spiral receiving groove 321 on its side wall, into which the spiral elastic element 34 is positively inserted. The spiral receiving groove 321 serves as an axial positioning reference for the elastic element 34 through its continuous path. Upon compression deformation of the length-adjustable body 32, the groove walls of the spiral receiving groove 321 enclose the elastic element 34 three-dimensionally, thereby limiting its radial displacement and forcing the elastic element 34 to compress axially along the spiral path. Due to its elasticity, the elastic element 34 stores the deformation energy. When the external compressive force is released, the elastic element 34 releases the stored elastic energy and drives the length-adjustable body 32 back in the opposite direction.In this way, a bidirectional force transmission is created between the length-adjustable body 32 and the elastic element 34: The compression deformation of the length-adjustable body 32 is converted into an axial energy storage of the elastic element 34, and the restoring force of the elastic element 34 acts back on the length-adjustable body 32, thereby resetting the movement.

[0024] For example, the diameter of the sleeve 10 gradually decreases along the direction from the second opening 15 to the first opening 13.

[0025] Along the direction from the second opening 15 to the first opening 13, the diameter of the sleeve 10 continuously decreases, creating a conical flow channel structure. This continuous reduction in diameter has several technical advantages: First, the tapered tube shape naturally adapts to the grip curve of the human hand, forming an ergonomic gripping surface. Second, the continuous reduction in the tube diameter leads to a gradual reduction in the cross-sectional area of the internal flow channel, which has the effect of accelerating the air flow from the second opening 15 to the first opening 13 and improving the efficiency of negative pressure transmission. Furthermore, the continuously decreasing tube diameter limits the deformation of the flexible element 20 and the length-adjustable element 30 inside the sleeve 10.As the flexible element 20 and the length-adjustable element 30 move toward the first opening 13, the tapered space forces the flexible element 20 to undergo a combined deformation of radial compression and axial expansion.

[0026] For example, a portion of the flexible element 20 is disposed inside the sleeve 10 and a portion outside the sleeve 10. When the flexible element 20 is connected to the sleeve 10, it can close the second opening 15. The sleeve 10 includes an end wall 12 surrounding the second opening 15. One end of the flexible element 20 encloses the end wall 12 and is partially located outside the sleeve 10.

[0027] The sleeve 10 is provided with the annular end wall 12 at the periphery of the second opening 15, and the flexible element 20 is fitted onto the end wall 12 by an enclosing flange formed at its end to form an enclosing, detachable connection and close the second opening 15. For example, an annular groove is formed on the inside of the flange of the flexible element 20, which fits into an interference fit with a protrusion structure of the end wall 12, thereby achieving interference assembly through elastic deformation, forming an airtight connection surface, and increasing the connection strength between the flexible element 20 and the sleeve 10. The separable connection between the flexible element 20 and the end wall 12 allows the flexible element 20 to be removed independently of the sleeve 10 for replacement of the flexible element 20 or for cleaning and maintenance.

[0028] For example, a flange may be arranged on the outer edge of the end wall 12, wherein the outer edge of the end wall 12 may protrude outwardly from the sleeve 10 to increase the connection strength with one end of the flexible element 20 and to prevent the flexible element 20 from easily detaching from the sleeve 10.

[0029] The portion of the flexible element 20 disposed outside the sleeve 10 can extend along the axis of the sleeve 10 and toward the vacuum drive element 40, thereby further increasing the connection strength with the sleeve 10. Furthermore, since the flexible element 20 is relatively soft, the hard end of the sleeve 10 can be prevented from injuring external objects (e.g., human fingers).

[0030] The other end of the flexible element 20 can be adjacent to or close to the length-adjustable element 30. The other end of the flexible element 20 is arranged so that it is adjacent to or close to the length-adjustable element 30. When the vacuum drive element 40 is not in operation, a gap exists between the flexible element 20 and the length-adjustable element 30, i.e., the flexible element 20 and the length-adjustable element 30 do not contact each other. When the vacuum drive element 40 is in operation, the flexible element 20 deforms in the axial direction under the influence of the negative pressure, contacts the length-adjustable element 30, and acts on it, creating a continuous force transmission path so that the deformation of the flexible element 20 can be directly converted into a driving movement of the length-adjustable element 30.When the vacuum drive element 40 ceases to operate, the length-adjustable element 30 is reset by the built-in elastic element 34, thereby resetting the length-adjustable element 30 along the axis in the opposite direction, allowing the length-adjustable element 30 to rebound the flexible element 20. In some other examples, the flexible element 20 and the length-adjustable element 30 may also be in contact when the vacuum drive element 40 is not operating.

[0031] For example, the massage device 1 further comprises a base 50 to which the vacuum drive element 40 is mounted; the base 50 comprises an inner shell 52 and an outer shell 54 that are inserted into one another, with the sleeve 10 partially disposed between the inner shell 52 and the outer shell 54.

[0032] The outer shell 54 of the base 50 of the massage device 1 is arranged around the inner shell 52 and forms a protective surface that provides mechanical protection. The sleeve 10 is partially embedded in the space between the inner shell 52 and outer shell 54 and is connected to the sleeve 10 by the clamping action of the inner shell 52 and outer shell 54.

[0033] For example, the base 50 further comprises a bottom shell 56, wherein the bottom shell 56 and the inner shell 52 are tightly connected at both ends of the outer shell 54, and the vacuum drive element 40 is arranged in the outer shell 54.

[0034] The base 50 is designed as a split housing structure, with the outer shell 54 serving as the main support element forming an axially extending installation cavity, and the bottom shell 56 and the inner shell 52 each being secured to the two axial ends of the outer shell 54 by a sealed connection, thereby forming a closed protective space. The vacuum drive element 40 is arranged in the cavity of the outer shell 54 and, thanks to the positioning structure of the inner shell 52, forms a stable mounting connection with the outer shell 54. The two-sided sealing between the inner shell 52 and the bottom shell 56 ensures the airtightness of the vacuum drive element 40 arranged in the outer shell 54.In some of these embodiments, the bottom sleeve 56 is provided with an outlet opening at an end remote from the flexible element 20 through which the vacuum drive element 40 sucks the air from the sleeve 10 and expels it from this outlet opening to create a negative pressure in the sleeve 10.

[0035] With reference to Fig. 5, Fig. Figure 5 is an enlarged schematic representation of part A of the Fig. 4. The length-adjustable body 32 has a cavity 325 and is connected to the inner sleeve 52 at its end facing away from the flexible element 20. The outer sleeve 54 is tightly connected to the inner sleeve 52. The inner sleeve 52 is tightly connected to the length-adjustable body 32 and has a connecting opening 521 connected to the cavity 325.

[0036] In this embodiment, the inner shell 52 forms a continuous air channel with the cavity 325 of the length-adjustable body 32 through the connection opening 521. The tight connection between the outer shell 54 and the inner shell 52 forms an external protective barrier, while the tight connection between the inner shell 52 and the length-adjustable body 32 forms an airtight interior, so that the negative pressure generated by the vacuum drive element 40 is efficiently transferred into the interior of the length-adjustable body 32 via the connection opening 521.

[0037] For example, a limiting groove 523 is arranged at an end of the inner shell 52 facing the length-adjustable body 32, and a locking part 326 is arranged at an end of the length-adjustable body 32 facing the inner shell 52, which locks into the limiting groove 523.

[0038] During assembly of the length-adjustable body 32, the engagement part 326 engages the limiting groove 523, automatically achieving axial alignment and firmly connecting the length-adjustable body 32 to the inner shell 52 without the need for additional adjustment. During movement of the length-adjustable body 32, the limiting groove 523 prevents its radial displacement, thereby avoiding friction losses due to movement path deviations and ensuring stable telescoping of the length-adjustable body 32 along the axis. Furthermore, assembly and disassembly are facilitated.

[0039] For example, the massage device 1 further comprises a first sealing ring 62 arranged between the inner shell 52 and the outer shell 54 in order to tightly connect the inner shell 52 and the outer shell 54 to one another.

[0040] The first sealing ring 62 is arranged between the inner shell 52 and the outer shell 54 and can be made of an elastic material to fill the mounting gap between the inner shell 52 and the outer shell 54 and maintain a stable connection between the inner shell 52 and the outer shell 54. Furthermore, it prevents loosening of the connection due to vibration or temperature changes, thus ensuring the gas and liquid tightness of the connection between the outer shell 54 and the inner shell 52. This not only prevents the penetration of contaminants from the external environment and protects the interior of the device from dust, moisture, and other harmful influences, but also creates a reliable airflow channel for the vacuum drive system, ensuring that it is not affected by external air currents during normal operation and ensuring the overall performance and longevity of the massager.

[0041] For example, the inner shell 52 is provided with a first receiving groove 525 on a side wall facing the outer shell 54, and the first sealing ring 62 is arranged in the first receiving groove 525; the outer shell 54 is provided with a first projection 542 on a side facing the first sealing ring 62, which projection bears against the first sealing ring 62.

[0042] The side wall of the inner shell 52 is provided with the first receiving groove 525 so that the first sealing ring 62 can be precisely inserted into the first receiving groove 525 and held in position. The first projection 542 of the outer shell 54 abuts against the first sealing ring 62, so that the first sealing ring 62 is elastically deformed. The deformed first sealing ring 62 simultaneously fills the installation gap between the first receiving groove 525 and the first projection 542, so that the first sealing ring 62 is fixed in the first receiving groove 525 in the axial direction and cannot shift, while it firmly abuts the sealing surface in the radial direction due to the sustained pressure of the first projection 542, thereby ensuring long-term stable environmental insulation and gas tightness.

[0043] For example, the bottom shell 56 is provided with a second receiving groove 561 on a side wall facing the outer shell 54, and a second sealing ring 64 is arranged in the second receiving groove 561; the outer shell 54 is provided with a second projection 544 on a side facing the second sealing ring 64, which abuts the second sealing ring 64.

[0044] The side wall of the base shell 56 is provided with the second receiving groove 561 as a mounting base for the second sealing ring 64. The second sealing ring 64 is precisely inserted into the second receiving groove 561 and held in position. The second projection 544 is arranged at a corresponding location on the outer shell 54 and rests against the second sealing ring 64 during assembly. The second sealing ring 64 simultaneously fills the assembly gap between the second receiving groove 561 and the second projection 544, thereby axially fixing the second sealing ring 64 in the second receiving groove 561 and preventing slippage. The sealing surface is maintained in the radial direction by the continuous compressive force of the second projection 544, so that the sealing effect is maintained even during vibrations or temperature changes.This ensures long-term, stable environmental insulation and gas tightness, ensuring the normal operation of the vacuum drive system without interference from external air currents. This improves the performance and reliability of the entire massager 1 and extends its service life.

[0045] For example, the length of the length-adjustable element 30 along the axis of the sleeve 10 is equal to or greater than the length of the flexible element 20 when neither the length-adjustable element 30 nor the flexible element 20 is deformed. This promotes complete deformation of the length-adjustable element 30 and contributes to the harmonious movement between the length-adjustable element 30 and the flexible element 20, making the massage movements of the massager more fluid and natural and improving the user experience.

[0046] The flexible element 20 has a first space 21, and at the end of the flexible element 20 facing away from the length-adjustable element 30, a third opening 23 is formed, which communicates with the first space 21. The third opening 23 serves to insert and remove external objects into the first space 21.

[0047] The third opening 23 serves as an interface between the outside world and the flexible element 20, through which the user can insert or remove external objects into the first space 21. When the negative pressure drive element 40 is in operation, the flexible element 20 contracts and deforms under the influence of the air pressure difference in the sleeve 10, thereby reducing the volume of the first space 21 and tightly enclosing the external objects located in the first space 21. When the negative pressure gradually decreases, the flexible element 20 returns to its original state due to its elasticity, thereby increasing the volume of the first space 21 and detaching the external objects (e.g., human fingers) in the first space 21 from the flexible element 20. In some examples, the negative pressure may vary periodically, with the flexible element 20 alternately contracting and rebounding.In a shrinking phase, the volume of the first chamber 21 is compressed, creating a suction effect that exerts a pulling force on the underlying tissue. In a recovery phase, the volume of the first chamber 21 is restored, the suction effect is removed, and a slight pressure is simultaneously released. This repeated movement completes a massage cycle, thereby achieving a massage effect on the human body.

[0048] For example, the flexible member 20 has an uneven structure on the inner wall of the first space 21. The uneven structure can increase the connection strength with external objects (e.g., the fingers of the human body). The uneven structure can include at least one of the following structures: spherical protrusions, ring-shaped protrusions, and strip-shaped protrusions. In some examples, the uneven structure can include multiple types of protrusion structures arranged sequentially along the direction from the second opening 15 to the first opening 13.

[0049] For example, the massage device 1 further comprises a circuit board 80 on which at least one of the following elements is arranged: a switch, a gear control element, and a gear indicator. The switch can control the switching on and off of the vacuum drive element 40. The gear control element can control different gears of the vacuum drive element 40. The gear indicator can indicate the current gear of the vacuum drive element 40, for example, by means of different colored indicator lights or by displaying the corresponding gear number.

[0050] For example, circuit board 80 can further control a vibrator. For example, the on / off switching of the vibrator as well as the vibrator's speed can be controlled. The vibrator's speed can also be indicated, for example, by different colors or numbers that indicate the vibrator's speed.

[0051] For example, the massager 1 may further include a power supply 90. The power supply 90 may be a battery that supplies power to the components in the massager 1, such as the vacuum drive element 40, the circuit board 80, the vibration element 70, etc., thereby allowing the massager 1 to be conveniently transported and used by being powered by the battery. In some examples, the power supply 90 may be a power supply circuit connected to an external power source and supplying power to the components in the massager 1, such as the vacuum drive element 40, the circuit board 80, and the vibration element 70.In some examples, the circuit board 80 of the massager 1 may include a battery indicator that indicates the charge level of the battery, for example, through a different number of indicator lights, different colors or brightness of the indicator lights, or the flashing frequency of the indicator lights.

[0052] For example, the massager 1 further includes a charging port for charging the battery, via which the battery can be charged or via which the massager 1 can be directly operated. The charging port can be configured as needed, e.g., as a USB port, TYPE-C port, etc. This application does not limit the type of charging port as long as it is suitable for charging the battery or supplying power to the massager 1. In other examples, the massager 1 may be equipped without a charging port and instead charge the battery wirelessly to improve the waterproofness of the massager 1. For wireless charging, a wireless charging circuit may be arranged in the massager 1. In other examples, the massager 1 is equipped with neither a charging port nor a wireless charging function, but the battery may be replaceable.Of course, in some examples, the massager 1 may be equipped with at least two of the following features: charging port, wireless charging, and replaceable battery.

[0053] For example, the circuit board 80 may be electrically connected to the vacuum drive element 40 and the vibration element 70 and serve to control the operating state of both elements.

[0054] For example, upon receiving a first control command, the circuit board 80 controls the vacuum drive element 40 to extract the air from the sleeve 10 to create a vacuum in the sleeve 10, which directly moves the flexible element 20 toward the first opening 13 and indirectly moves the length-adjustable element 30 toward the first opening 13 via the flexible element 20, and controls the vibration element 70 so that it does not vibrate. The circuit board 80 can receive control commands such as the first control command via a button arranged thereon, via a wireless communication circuit (e.g., Bluetooth communication circuits or WLAN communication circuits) arranged thereon, or via other circuits arranged thereon (e.g., voice recognition circuits, touch detection circuits).

[0055] For example, upon receiving a second control command, the circuit board 80 controls the vibration of the vibrating element 70, which is connected to and acts on the end of the flexible element 20 remote from the second opening 15, and controls the vacuum drive element 40 so that it does not vibrate. The circuit board 80 can receive control commands such as the second control command via a button, a wireless communication circuit, or other circuits.

[0056] For example, upon receiving a third control command, the circuit board 80 controls the vacuum drive element 40 to extract gas from the sleeve 10 to create a vacuum in the sleeve 10, and controls the vibration element 70 to vibrate after a preset period of time following the extraction. The circuit board 80 can receive control commands such as the third control command via a button, a wireless communication circuit, or other circuits.

[0057] For example, the massage device 1 further comprises a flexible outer shell that covers the circuit board 80 and is tightly connected to the outer shell 54 to fulfill a protective and sealing function.

[0058] The present application further relates to a massage device. The main difference between the massage device in the present embodiment and the massage device in the above-mentioned embodiment is that in this embodiment, no length-adjustable element 30 is provided. That is, the massage device 1 comprises a sleeve 10, a flexible element 20, and a vacuum drive device 40.The sleeve 10 has a receiving space 11, and the sleeve 10 has a first opening 13 and a second opening 15 at its two axially opposite ends, which are connected to the receiving space 11. The flexible element 20 is at least partially arranged in the receiving space 11; the flexible element 20 has an opening and a massage space that are connected to each other; a site to be massaged can enter and exit the massage space through the opening. The vacuum drive element 40 is connected to the first opening 13 of the sleeve 10 and can generate a negative pressure in the sleeve 10 to move the flexible element 20 toward the first opening 13. The specific structure and function of the sleeve 10, the flexible element 20, and the vacuum drive element 40 can be understood from the embodiments described above and will not be explained in detail here.

[0059] For example, the massage device 1 further includes a vibrating element 70 arranged in the receiving space 11, wherein the vibrating element 70 can be connected to the flexible element 20 when a negative pressure is generated in the sleeve 10. When the vibrating element 70 and the flexible element 20 are both arranged in the sleeve 10, the vibrating element 70 can abut an end of the flexible element 20 remote from the second opening 15. The vibrating element 70 can generate vibrations and act on the end of the flexible element 20 remote from the second opening 15. The specific structure and function of the vibrating element 70, etc., can be inferred from the embodiments described above and will not be described again here.

[0060] The present application further relates to a massage device. The main difference between the massage device in the present embodiment and the massage device in the above-mentioned embodiment is that no flexible element 20 is arranged in this embodiment. That is, the massage device 1 comprises a sleeve 10, a length-adjustable element 30, and a vacuum drive element 40. The sleeve 10 has a receiving space 11, and the sleeve 10 has a first opening 13 and a second opening 15 at its two axially opposite ends, which communicate with the receiving space 11; the length-adjustable element 30 is at least partially arranged in the receiving space 11; the vacuum drive element 40 is connected to the first opening 13 of the sleeve 10 and can generate a vacuum in the sleeve 10 to move the length-adjustable element 30 toward the first opening 13.The sleeve 10 or the length-adjustable element 30 can be used to accommodate a location to be massaged. A flexible structure for accommodating a location to be massaged can be arranged inside the sleeve 10, and a flexible structure for accommodating a location to be massaged can be arranged inside the length-adjustable element 30, or the length-adjustable element 30 itself can be a flexible structure. The specific structures and functions of the sleeve 10, the length-adjustable element 30, and the vacuum drive element 40 can be taken from the above-mentioned embodiments and will not be explained in detail here.

[0061] For example, the massage device 1 further comprises a vibration element 70, which is arranged in the receiving space 11 and connected to the length-adjustable element 30. The specific structures and functions of the vibration element 70 can be taken from the above-mentioned embodiments and will not be explained in detail here.

[0062] For example, the length-adjustable element 30 comprises a length-adjustable body 32 and an elastic element 34, wherein the length-adjustable body 32 is telescopically extendable and retractable along the axis of the sleeve 10, and the elastic element 34 is attached to the length-adjustable body 32 such that the elastic element 34 is elastically deformed when the length-adjustable body 32 is compressed. The length-adjustable body 32 can be deformed and folded under the drive of the vacuum drive element 40, wherein the elastic element 34 is compressed within the length-adjustable body 32 and exerts an elastic force. When the vacuum drive element 40 is stopped, the elastic element 34 forces the folded length-adjustable body 32 apart through its elastic force.

Claims

[1] A massage device (1), characterized in that it comprises: a sleeve (10); wherein the sleeve (10) is provided with an internally arranged receiving space (11); the sleeve (10) has at its two axially opposite ends a first opening (13) and a second opening (15) which communicate with the receiving space (11); a flexible element (20) which is at least partially arranged in the receiving space (11); a length-adjustable element (30); wherein the length-adjustable element (30) is arranged at least partially in the receiving space (11) and is arranged together with the flexible element (20) along a direction from the first opening (13) to the second opening (15); and a vacuum drive element (40); wherein the vacuum drive element (40) is connected to the first opening (13) of the sleeve (10) and serves to generate a vacuum in the sleeve (10) in order to move the flexible element (20) towards the first opening (13) and to move the length-adjustable element (30) towards the first opening (13). [2] Massage device (1) according to claim 1, further comprising: a vibration element (70) arranged in the receiving space (11) and connected to the length-adjustable element (30); wherein, when the negative pressure is generated in the sleeve (10), the vibration element (70) is connected to the flexible element (20); wherein the vibration element (70) serves to bear against an end of the flexible element (20) remote from the second opening (15); wherein the vibration element (70) serves to generate vibrations and to act on the end of the flexible element (20) remote from the second opening (15). [3] Massage device (1) according to claim 2, wherein, when the negative pressure is generated in the sleeve (10), the vibrating element (70) and the length-adjustable element (30) are jointly driven by the flexible element (20) and move in the direction of the first opening (13). [4] Massage device (1) according to claim 2, wherein the length-adjustable element (30) comprises a length-adjustable body (32) and an elastic element (34); the length-adjustable body (32) is telescopically extendable and retractable along the axis of the sleeve (10), and the elastic element (34) is attached to the length-adjustable body (32) so that the elastic element (34) is elastically deformed when the length-adjustable body (32) is compressed. [5] Massage device (1) according to claim 4, wherein the elastic element (34) extends along the first opening (13) towards the second opening (15); the elastic element (34) has an internally arranged hollow channel, and the vibration element (70) is arranged in the hollow channel and is capable of vibration in the hollow channel. [6] The massage device (1) according to claim 4, wherein the length-adjustable body (32) comprises a plurality of convex rings (322) and a plurality of connecting portions (324) each connecting corresponding two adjacent convex rings (322); wherein the plurality of connecting portions (324) are deformable to telescopically extend and retract the length-adjustable body (32). [7] The massage device (1) according to claim 4, wherein the length-adjustable body (32) comprises a plurality of convex rings (322) and a plurality of connecting elements (324) each connecting corresponding two adjacent convex rings (322); wherein the plurality of convex rings (322) and the plurality of connecting elements (324) are deformable to telescopically extend and retract the length-adjustable body (32). [8] Massage device (1) according to claim 4, further comprising: a base (50) to which the vacuum drive element (40) is mounted; wherein the base (50) comprises an inner shell (52) and an outer shell (54) which are fitted into one another; wherein the sleeve (10) is partially arranged between the inner shell (52) and the outer shell (54). [9] The massage device (1) according to claim 8, wherein the base (50) further comprises a bottom shell (56); the bottom shell (56) and the inner shell (52) are tightly connected at both ends of the outer shell (54), and the vacuum drive element (40) is arranged in the outer shell (54). [10] Massage device (1) according to claim 9, wherein the length-adjustable body (32) has a cavity (325) and is connected to the inner shell (52) at its end facing away from the flexible element (20); the outer shell (54) is tightly connected to the inner shell (52); the inner shell (52) is tightly connected to the length-adjustable body (32) and has a connection opening (521) connected to the cavity (325). [11] Massage device (1) according to claim 10, wherein a limiting groove (523) is arranged at an end of the inner shell (52) facing the length-adjustable body (32), and a locking part (326) is arranged at an end of the length-adjustable body (32) facing the inner shell (52), which locking part engages in the limiting groove (523). [12] Massage device (1) according to claim 11, wherein the inner shell (52) has, at its end remote from the base shell (56), an outer side which is oriented towards the sleeve (10), and the limiting groove (523) is arranged on the outer side; wherein the length-adjustable body (32) surrounds the inner shell (52) at its end facing the base shell (56) and has the locking part (326) locked into the limiting groove (523). [13] The massage device (1) according to claim 9, further comprising: a first sealing ring (62) disposed between the inner shell (52) and the outer shell (54) for sealingly connecting the inner shell (52) and the outer shell (54) to each other. [14] Massage device (1) according to claim 13, wherein the inner shell (52) is provided with a first receiving groove (525) on a side wall facing the outer shell (54), and the first sealing ring (62) is arranged in the first receiving groove (525); the outer shell (54) is provided with a first projection (542) on a side facing the first sealing ring (62), which projection rests against the first sealing ring (62). [15] The massage device (1) according to claim 9, further comprising: a second sealing ring (64) disposed between the bottom shell (56) and the outer shell (54) to tightly connect the bottom shell (56) and the outer shell (54) to each other. [16] Massage device (1) according to claim 15, wherein the bottom cover (56) is provided with a second receiving groove (561) on a side wall facing the outer cover (54), and the second sealing ring (64) is arranged in the second receiving groove (561); the outer cover (54) is provided with a second projection (544) on a side facing the second sealing ring (64), which projection rests against the second sealing ring (64). [17] Massage device (1) according to claim 1, wherein the diameter of the sleeve (10) gradually decreases along a direction from the second opening (15) to the first opening (13). [18] A massage device (1) according to claim 1, wherein the sleeve (10) comprises an end wall (12) surrounding the second opening (15); one end of the flexible element (20) envelops the end wall (12) and is partially located outside the sleeve (10). [19] Massage device (1) according to claim 1, wherein the length of the length-adjustable element (30) along the axis of the sleeve (10) is equal to or greater than the length of the flexible element (20) when neither the length-adjustable element (30) nor the flexible element (20) is deformed. [20] A massage device (1), characterized in that it comprises: a sleeve (10); wherein the sleeve (10) is provided with an internally arranged receiving space (11); the sleeve (10) has at its two axially opposite ends a first opening (13) and a second opening (15) which communicate with the receiving space (11); a flexible element (20) detachably connected to the sleeve (10); wherein the flexible element (20), when connected to the sleeve (10), is at least partially arranged in the receiving space (11) and closes the second opening (15); a length-adjustable element (30) detachably connected to the sleeve (10); wherein the length-adjustable element (30), when connected to the sleeve (10), is at least partially arranged in the receiving space (11) and is arranged together with the flexible element (20) along a direction from the first opening (13) to the second opening (15); a vibrating element (70) arranged in the length-adjustable element (30); wherein, when the length-adjustable element (30), the vibrating element (70), and the flexible element (20) are all arranged in the sleeve (10), the vibrating element (70) is designed to abut an end of the flexible element (20) remote from the second opening (15) through an end of the length-adjustable element (30) remote from the first opening (13); wherein the vibrating element (70) serves to generate vibrations and to act on the end of the flexible element (20) remote from the second opening (15); a vacuum drive element (40); wherein the vacuum drive element (40) is connected to the first opening (13) of the sleeve (10) and serves to generate a vacuum in the sleeve (10) in order to directly move the flexible element (20) towards the first opening (13) and to indirectly move the length-adjustable element (30) towards the first opening (13) through the flexible element (20); a circuit board (80) electrically connected to the vacuum drive element (40) and the vibration element (70) and used to control the operating state of the vacuum drive element (40) and the vibration element (70); and a power supply part (90) electrically connected to the vacuum drive element (40), the vibration element (70), and the circuit board (80) for supplying power to the circuit board (80), the vibration element (70), and the vacuum drive element (40); wherein the circuit board (80), upon receiving a first control command, controls the vacuum drive element (40) such that it sucks the air out of the sleeve (10) in order to generate the vacuum in the sleeve (10) in order to move the flexible element (20) directly in the direction of the first opening (13) and indirectly via the flexible element to move the length-adjustable element (30) in the direction of the first opening (13), and controls the vibration element (70) such that it does not vibrate; and / or the circuit board (80) upon receiving a second control command controls the vibrating element (70) to vibrate; wherein the vibrating element (70) is connected to the end of the flexible element (20) remote from the second opening (15) and acts on the end of the flexible element (20), and controls the vacuum drive element (40) to be in a non-working state; and / or the circuit board (80), upon receiving a third control command, controls the vacuum drive element (40) to suck the air out of the sleeve (10) to generate the negative pressure in the sleeve (10), and after a predetermined period of time after the sucking, controls the vibration element (70) to vibrate. [21] A massage device (1), characterized in that it comprises: a sleeve (10); wherein the sleeve (10) is provided with an internally arranged receiving space (11); the sleeve (10) has at its two axially opposite ends a first opening (13) and a second opening (15) which communicate with the receiving space (11); a flexible element (20) which is arranged at least partially in the receiving space (11); wherein the flexible element (20) has an opening and a massage space which are connected to one another; a point to be massaged can enter and exit the massage space through the opening; and a vacuum drive element (40); wherein the vacuum drive element (40) is connected to the first opening (13) of the sleeve (10) and serves to generate a vacuum in the sleeve (10) in order to move the flexible element (20) towards the first opening (13). [22] Massage device (1) according to claim 21, further comprising: a vibration element (70) arranged in the receiving space (11); wherein the vibration element (70) is designed such that, when the negative pressure is generated in the sleeve (10), it bears against an end of the flexible element (20) remote from the second opening (15); wherein the vibration element (70) serves to generate vibrations and to act on the end of the flexible element (20) remote from the second opening (15); while the vacuum drive element (40) moves the flexible element (20) towards the first opening (13), the flexible element (20) comes into contact with the vibrating element (70) and drives the vibrating element (70) towards the first opening (13). [23] A massage device (1), characterized in that it comprises: a sleeve (10); wherein the sleeve (10) has a receiving space (11), and the sleeve (10) further has at one end in the axial direction a first opening (13) communicating with the receiving space (11); a length-adjustable element (30) which is at least partially arranged in the receiving space (11); a vibration element (70) arranged in the receiving space (11) and connected to the length-adjustable element (30); wherein the vibration element (70) serves to generate vibrations in order to act on a site to be massaged; and a vacuum drive element (40); wherein the vacuum drive element (40) is connected to the first opening (13) of the sleeve (10) and serves to generate a vacuum in the sleeve (10) in order to move the length-adjustable element (30) towards the first opening (13), wherein the vibration element (70) moves together with the length-adjustable element (30) towards the first opening (13).

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