Stimulator using an air cylinder

Abstract

The stimulator comprises an outer housing having an opening. A power source is located within the outer housing. A motor is located within the housing, and the motor receives power from the power source to generate rotational motion. A motion conversion unit converts the rotational motion from the motor into reciprocating motion. An air cylinder receives reciprocating motion from the motion conversion unit to expand and contract the volume of a chamber, and in accordance with the expansion and contraction of the chamber's volume, the chamber alternately supplies positive and negative pressure to the opening of the outer housing. A non-permeable structure separates the air cylinder from the motor and the power source within the outer housing.

Description

Technical Field

[0004] , , ,

[0001] This application claims priority based on U.S. Patent Application No. 18 / 491,232, filed on October 20, 2023, which is a partial continuation application of U.S. Patent Application No. 18 / 153,423, filed on January 12, 2023. The entire disclosure content is incorporated herein by reference in its entirety.

[0002] The present disclosure relates to a sexual stimulation device, and more particularly, to a sexual stimulation device using an air cylinder.

Background Art

[0003] Various sexual stimulation devices can utilize various mechanical means to provide the desired type of sexual stimulation to the user. For example, some devices can vibrate, some can wiggle or articulate, some can provide reciprocating motion, and others can provide intermittent suction. Sexual stimulation devices designed to provide such intermittent suction may include a pressure generating chamber. This pressure generating chamber is configured to reduce and expand its volume to generate intermittent suction. This pressure generating chamber is open to the surrounding environment to supply the generated suction to the user as needed. Thus, in combination with the generation of suction, this open structure may draw in liquid and moisture, which may be drawn into the mechanism of the device. This may cause corrosion and other damage and may lead to failure.

Summary of the Invention

Means for Solving the Problems

[0004] The stimulator comprises an outer housing having an opening. A power source is located inside the outer housing. A motor is located inside the housing, and the motor receives power from the power source to generate rotational motion. A motion conversion unit converts the rotational motion from the motor into reciprocating motion. An air cylinder receives reciprocating motion from the motion conversion unit to expand and contract the volume of a chamber, and in accordance with the expansion and contraction of the chamber's volume, the chamber alternately supplies positive and negative pressure to the opening of the outer housing. A non-permeable structure separates the air cylinder from the motor and the power source within the outer housing.

[0005] The stimulator comprises an outer housing having an opening. A power source is located inside the outer housing. An electromagnetic coil is located inside the housing and receives power from the power source to generate an intermittent magnetic field. An air cylinder is configured to expand and contract the volume of the chamber by the intermittent magnetic field of the electromagnetic coil, and in accordance with the expansion and contraction of the chamber's volume, the chamber alternately supplies positive and negative pressure to the opening of the outer housing. An impermeable structure separates the air cylinder from the electromagnetic coil within the outer housing.

[0006] The stimulator comprises an outer housing having an opening. A power source is located inside the outer housing. A motor is located inside the housing and receives power from the power source to generate rotational motion. A bar magnet is connected to the output shaft of the motor and is configured to rotate due to the rotational motion of the motor, generating a magnetic field with alternating polarity. An air cylinder is configured to expand and contract the volume of a chamber in accordance with the alternating polarity of the rotating bar magnet, and in accordance with the contraction and expansion of the chamber's volume, the chamber alternately supplies positive and negative pressure to the opening of the outer housing. An impermeable structure separates the air cylinder from the bar magnet, motor, and power source within the outer housing. [Brief explanation of the drawing]

[0007] A more complete understanding of this disclosure and its many related aspects can be easily obtained by considering the following detailed description with reference to the attached drawings.

[0008] [Figure 1] Figure 1 is a perspective view of a stimulator according to an embodiment of this disclosure. [Figure 2] Figure 2 is a cross-sectional view (AA) of the stimulator shown in Figure 1. [Figure 3] Figure 3 is a cross-sectional view of the BB of the stimulator shown in Figure 1. [Figure 4] Figure 4 is an exploded view of the stimulator shown in Figure 1. [Figure 5] Figure 5 is a cross-sectional view of a stimulator equipped with alternative means for imparting reciprocating motion according to an embodiment of this disclosure. [Figure 6] Figure 6 is a cross-sectional view of a stimulator having a hole located outside the opening according to an embodiment of this disclosure. [Figure 7] Figure 7 is a cross-sectional view of a stimulator separable into top and bottom sections according to an embodiment of the present disclosure. [Figure 8] Figure 8 is a cross-sectional view of a stimulator utilizing magnetic means for realizing reciprocating motion according to an embodiment of this disclosure. [Figure 9] Figure 9 is a cross-sectional view of a stimulator according to an embodiment of the present disclosure, showing the combined use of an electromagnetic means and a motor to generate reciprocating motion of a movable sleeve as an alternative means for generating pressure. [Figure 10] Figure 10 is a cross-sectional view showing a stimulator comprising an air cylinder with a fixed cylinder on the outside of a concentric piston having a concave cavity. [Figure 11] Figure 11 is a cross-sectional view showing a stimulator similar to Figure 2, but it has a non-permeable structure with a flexible partition wall extending across the width of the apparatus according to the embodiment of this disclosure. [Modes for carrying out the invention]

[0009] In describing embodiments of this disclosure with reference to the drawings, certain terms will be used for clarity. However, this disclosure is not intended to be limited to any selected specific terms, and each specific element should be understood to include all similarly functioning technical equivalents.

[0010] To ensure understanding, elements illustrated or explained in one figure may be mixed or combined with elements illustrated or explained in another figure, and elements that appear similar in one figure to elements explained in another figure may be considered similar to at least those corresponding elements.

[0011] Embodiments of this disclosure relate to a stimulation device that provides stimulation to a user through intermittent pressure using an air cylinder. The air cylinder can provide a desired pressure by expanding and contracting the volume of a chamber. For example, by employing a pair of nested cylindrical bodies and extending a second cylinder from a first cylinder, the combined volume forming the chamber volume can be increased, and then the chamber volume can be reduced by bringing the second cylinder back into the first cylinder. When the chamber volume increases, the pressure inside the chamber becomes relatively lower, causing suction at the chamber opening. When the chamber volume decreases, the pressure inside the chamber becomes relatively higher, causing puffing at the chamber opening. In this way, a desired intermittent pressure can be generated by alternately driving the nested cylindrical bodies.

[0012] However, as mentioned above, the suction generated by the low pressure of the air cylinder tends to draw liquid and moisture into the chamber, and this liquid and moisture can seep into the space between the nested cylinders. When liquid and moisture seep into this space between the nested cylinders, the internal components of the stimulator are exposed to the liquid and moisture, which may lead to corrosion of the internal components and / or the growth of potentially harmful mold and / or fungi.

[0013] Conventionally, electronic devices can be waterproofed using gaskets or adhesives placed between casing elements. However, because nested cylindrical bodies need to be able to move freely relative to each other, and the cavity of the cylindrical body needs to be exposed to the surrounding environment in order to supply the generated pressure, conventional waterproofing techniques may not be easily able to accommodate stimulators that utilize air cylinders.

[0014] Therefore, in embodiments of this disclosure, a malleable, impermeable structure may be employed that can surround the nested cylindrical bodies to prevent liquids and moisture that may enter the space between the nested cylindrical bodies from entering the other parts of the stimulator. This protects the internal components of the stimulator from liquids and moisture, thereby improving the reliability and safety of the stimulator.

[0015] Figure 1 is a perspective view of a stimulator according to an embodiment of the present disclosure. As can be seen from this figure, the stimulator 100 has a housing 1 that forms the outside of the device and defines the inside where various mechanical and electronic elements are arranged. The housing 1 may be completely sealed except for the presence of an opening 10 at the top of its front surface. The housing 1 may be composed of a plurality of shell parts, and these shell parts may be fixed using conventional waterproofing means such as gaskets.

[0016] The air cylinder 2 may be located inside the device 100, and the opening 10 of the housing 1 may communicate directly with the air cylinder 2. One or more holes 9 may be located outside the air cylinder 2. These holes are used to maintain a constant pressure inside the housing 1, as detailed below. The holes 9 may be sealed with sealing plugs, thereby allowing adjustment of the air pressure passing through but blocking the ingress of liquids or moisture. The opening 10 does not need to be sealed with a sealing plug like the holes 9, in order to provide space for sensitive parts of the user's body, such as the clitoris. To enhance its sexual stimulation, the sensitive parts of the user's body are drawn into the opening 10.

[0017] Device 100 is shown as having an A-A longitudinal cross-sectional view shown in more detail in FIG. 2 and a B-B horizontal cross-sectional view shown in more detail in FIG. 3. For this reason, FIG. 2 is an A-A cross-sectional view of the stimulation device 100 of FIG. 1. As can be seen from this figure, the air cylinder 2 includes a pair of nested cylinders as described above. One cylindrical body is a fixed sleeve 21 that holds a fixed state with respect to the opening 10 of the housing 1, and the other cylinder may be a movable container 22. The movable container 22 can freely move downward away from the fixed sleeve 21 so as to expand the volume of the chamber 照20, and can move upward toward the fixed sleeve 21 so as to reduce the volume of the chamber 20.

[0018] The fixed sleeve 21 includes a main cylinder 212 together with a cylindrical support portion 211. The cylindrical support portion 211 may be fixed to the device 100 below the opening 10. The cylinder 212 may be inserted into the movable container 22 or may be fixed to the cylindrical support portion 211. The movable container 照22 is freely movable relative to the outside of the cylinder 212. The cylinder 212 is formed of a low-friction material such as metal, while the cylindrical support portion 211 may be formed of a corrosion-resistant material such as plastic. The movable container 22, or at least its side wall, is formed of a low-friction material such as metal, whereby the side wall of the movable container 22 can freely slide along the outer surface of the cylinder 212. <()

[0019] The movable container 22 is driven vertically by a motion conversion unit 32 that receives rotational motion from the motor 31 and converts it into vertical (reciprocating) motion. This can be achieved, for example, by providing a crank 321 and a connecting rod 322. When the motor 31 rotates, one side of the crank 321 rotatably connected to the output shaft 310 of the motor 31 rotates in a circular orbit, and the other side is rotatably connected to the connecting rod 322. As a result, when the crank 321 reaches the lower part of the circle, the connecting rod 322 is moved downward, and when the crank 321 reaches the upper part of the circle, the connecting rod 322 is moved upward. The connecting rod 322 is also connected to the movable container 22, and thus, as the connecting rod 322 moves up and down, the movable container 22 moves in the same manner.

[0020] The motor 31 may be driven by an internal power source 5 such as a replaceable and / or rechargeable battery. The motor 31 may be controlled by a control module such as an integrated circuit disposed within the housing 1. The control module may control the operation of the motor 31 according to instructions or a predetermined program. One or more I / O elements such as buttons and display screens are connected to the control module and can be accessed through the housing 1 without compromising the waterproofness of the device 100. The battery may be rechargeable through a port passing through the housing 1, or may be charged wirelessly by induction or using exposed connector pins.

[0021] One or more sensors 8 may be disposed in proximity to the opening 10. These sensors 8 may be pressure sensors, optical sensors, touch sensors, etc., and have the function of detecting a state in which the device 100 is in contact with the user's body, controlling the motor 31 accordingly, or changing the pressure provided according to the detected pressure.

[0022] The opaque structure 4 may be positioned inside the housing 1, between the air cylinder 2 and the rest of the apparatus 100, including the housing 1. The opaque structure 4 comprises a bellows portion 41 that functions as a side protection and a bottom wall 42 that functions as the bottom of the movable container 22. The bellows portion 41 may have an accordion shape connecting the opening 10 and the bottom wall 42. This accordion shape may be configured to expand and contract in response to changes in the volume of the chamber 20 of the pressure field generator 2. An open internal space may be provided inside the housing 1 to accommodate the expansion and contraction of the bellows 41.

[0023] The bellows 41 may be made of a waterproof and flexible material such as synthetic rubber or a similar material. The bottom wall 42 is made of a highly rigid waterproof material such as plastic, which allows the movable container 22 to be operated when the connecting rod 322 pushes the bottom wall 42 in the vertical direction. However, the bottom wall 42 does not need to transmit the motion from the connecting rod 322 to the movable container 22, and the connecting rod 322 may be fixed to the side wall of the movable container 22. However, even in this case, the bottom wall 42 may have rigidity so as not to bend in response to the pressure of the air cylinder 2.

[0024] However, in some embodiments, the bottom wall 42 may be flexible, and if it is flexible, it may be configured as a continuous element integrated with the bellows 41. In this case, the connecting rod 322 pushes up the bottom wall 42, deforming its shape and pushing it into the movable container 22, thereby causing the movable container 22 to move. This transmits motion to the movable container 22 through the barrier of the impermeable structure 4.

[0025] The bellows 41 may be connected to the outer wall of the movable container 22 at its bottom and to the housing at its upper end by a cylindrical support portion 211.

[0026] The bottom wall 42 may be liquid-tightly connected to the bellows 41 to prevent moisture and liquid from leaking out of this interface. A cavity may be formed between the bottom wall 42 and the bottom of the cylinder 212. In this way, when the air cylinder 2 operates to expand and contract the volume of the chamber 20, high and low pressures can be generated in this cavity, opposite to the pressure generated by the air cylinder 2. To mitigate and balance the pressure in this cavity with respect to the surrounding environment, this cavity may communicate with the hole 9 through the space between the cylinder 212 and the movable container 22, and further through the gap 6. In this way, the hole 9 can provide additional stimulation to the user by performing intermittent suction and ejection.

[0027] The hole 9 may be connected to the cavity within the housing 1 by a tube or a downwardly protruding path, etc.

[0028] Figure 3 shows that a gap 6 exists between the bellows 41 of the impermeable structure 4 and the movable container 22. This gap may communicate with the aforementioned cavity that exists between the movable container 22 / bottom wall 42 and the underside of the cylinder 212, for example, through the narrow space between the fixed sleeve 21 and the movable container 22. The aforementioned hole 9 may communicate with this gap 6 and, consequently, with the aforementioned cavity. By pressurizing this gap 6 with the surrounding environment, the bellows 41 can be folded more easily as the movable container 22 rises, without inflating like a balloon inside the housing 1.

[0029] Figure 4 is an exploded view of the stimulator 100 of Figure 1. As can be seen from this figure, the opening 10 may be provided at the tip, including the sensor 8. The cylindrical support portion 211 may have an upper flange portion with an opening that facilitates the passage of air between the hole 9 and the gap 6. The cylinder 212 may be cylindrical, or the movable container 22 may have a larger diameter cylinder than the cylinder 212 to house the cylinder 212 concentrically. The bellows 41 may similarly be substantially cylindrical and may have accordion-shaped side walls and a substantially disc-shaped bottom wall 42. The figure also shows the motion conversion unit 32 having the rod and crank mechanism described above. The housing 1 may have a structure that opens into two halves as shown, with a rubber gasket placed between them to maintain liquid tightness (although this component is not essential). Both sides of the housing 1 may be connected to each other by screws, and various screw holes and posts can be seen in this figure. With both sides of the housing 1 connected to each other, it may be covered by a protective skin 11 made of silicone or another elastic, impermeable material.

[0030] The motion conversion unit 32 does not necessarily need to include a connecting rod 322 and a crank 321, and may have any mechanism for converting the rotational motion of the motor into reciprocating motion. Figure 5 shows an example of a stimulator 100 that includes an alternative means for converting reciprocating motion.

[0031] As can be seen from this figure, the motion conversion unit 32 may be equipped with a screw-type reciprocating mechanism having a screw 323 with a helical groove on its outside. The screw 323 may be connected to the output shaft 310 of the motor 31.

[0032] For example, the output shaft 310 of the motor 31 is connected to the screw 323 by a pair of bevel gears 325 having mutually orthogonal axes of rotation, thereby converting the horizontal axis of rotation of the motor 31 into a vertical axis of rotation, and maintaining the desired shape of the housing 1 as approximately "L" shape.

[0033] The nut 324 may be connected to the screw around the groove. The groove is double-helix in shape, with the ends of each helix converging at the upper and lower ends, so that the nut 324 can repeatedly move up and down as the screw 323 rotates in one direction (the rotation is prevented by the inside of the housing 1).

[0034] The tip of the nut 324 is connected to the bottom wall 42 of the impermeable structure 4, which serves as a power transmission unit, thereby causing the movable container 22 to reciprocate up and down due to the action of the nut 324. The nut 324 reciprocates linearly in conjunction with the unidirectional rotation of the screw 323.

[0035] The hole 9 does not have to be located inside the housing 1 above the opening 10, as shown in Figure 3 and described above. For example, Figure 6 shows a cross-sectional view of a stimulator having a hole 90 located outside the housing above the opening 10. By positioning this opening on the outside, as shown in Figure 6, the hole 90 is less likely to come into direct contact with the user and less likely to be physically blocked by the user, thus providing better protection from the ingress of moisture and liquids. In this configuration, the hole 90 opens to the side rather than upward, but as described above, the hole 90 is still in communication with the gap 6.

[0036] The process of cleaning the air cylinder inside the bellows may utilize the hole 90. Before cleaning, the user may cover the opening 10 with their finger and immerse the device in cleaning water. Then, by operating the motor 31, the bellows 41 expands and contracts. When the bellows 41 expands, water flows into the hole 90 and is drawn into the inside of the device and into the chamber 20 through the gap 6 between the fixed sleeve 21 and the movable container 22. When the bellows 41 contracts, the water flow is discharged from the hole 90 to the outside of the stimulator. This process effectively cleans the inside of the bellows 41 and the inside of the chamber 20 of the air cylinder 2.

[0037] The stimulator 100 is described as having a one-piece housing. That is, the housing may have two halves joined by screws, and the device 100 is not typically intended to be separated by the user. However, according to other embodiments, the stimulator 100 may be configured to be easily separated and reattached into a top section and a bottom section. This separability allows for improved cleaning of the device by separating the part located above the impermeable structure and exposed to the external environment from the part located below the impermeable structure and well protected.

[0038] Figure 7 is a cross-sectional view of a stimulator that is separable into top and bottom sections according to an embodiment of this disclosure.

[0039] The top section to be exposed may include a hole 9, an opening 10, a sensor 8, and a fixing sleeve 21 (equipped with a cylindrical support 211 and a cylinder 212). The bottom section protected from exposure may include a movable container 22 and an impermeable structure 4 (equipped with a bellows 41 and a bottom wall 42). The top and bottom sections may be joined by a combination of friction / pressure welding, for example by snap fitting, and / or by using various magnets to fix both sections in use and to allow for quick attachment and detachment during cleaning after use.

[0040] The stimulator does not need to rely on a motor for pressure generation, and various other configurations are possible. For example, the reciprocating motion of the movable container 22 may be realized magnetically. Figure 8 is a cross-sectional view of a stimulator utilizing magnetic means to realize reciprocating motion according to an embodiment of the present disclosure. As can be seen from this configuration, the housing 1 may include an electromagnetic coil 25 that acts as an electromagnet, driven not by a motor, but by the control of the controller described above and by the power source 5. When energized, the electromagnetic coil 25 generates a magnetic field that repels a magnetic block 24 provided at the bottom of the movable sleeve 23, thereby driving the movable sleeve 23 upward along a guide groove 213 that acts as a fixed sleeve 21, thereby reducing the volume of the chamber 20 and generating positive pressure from the opening 10. The upward bias of the magnetic sleeve 23 can counteract the downward bias provided by the first magnetic ring 26 located in the guide groove 213 and the second magnetic ring 27 located on the movable sleeve 23. The key 214 may be formed by a lateral projection on the upper part of the movable sleeve to prevent the movable sleeve 23 from coming out of the guide groove 213 when the electromagnetic coil 25 is not energized.

[0041] When de-energized, the electromagnetic coil 25 ceases to function as an electromagnet, blocking the repulsive force against the magnetic block 24. The magnetic repulsion between the first magnetic ring 26 and the second magnetic ring 27 allows the movable sleeve 23 to return to its original downward position.

[0042] As an alternative to de-energizing the electromagnetic coil 25, the polarity of the current may be reversed to attract the magnetic block 24 and assist in expanding the volume of the chamber 20.

[0043] And / or, one or more springs 28 may be used to provide a restoring force that pulls the movable sleeve 23 downward.

[0044] The magnetic polarity may be reversed as described above to generate an attractive bias between the first magnetic ring 26 and the second magnetic ring 27. In this case, the electromagnetic coil 25 can attract the magnetic block 24 when energized.

[0045] In either case, the magnetic block 24 can be separated from the electromagnetic coil 25 by the opaque structure 40 at its lowest position. The opaque structure 40 does not need to be flexible as it does not need to move, and may be configured as a single component such as a seal. Alternatively, the opaque structure 40 may be flexible as it may be pressed by the magnetic block 24 when it is in its lowest position.

[0046] Figure 9 is a cross-sectional view of a stimulator according to an embodiment of the present disclosure, showing another configuration that provides pressure by using electromagnetic means and a motor 31 in combination to generate the reciprocating motion of the movable sleeve 23. In this configuration, a bar magnet is placed at the tip of the output shaft 310 of the motor 31, allowing the bar magnet to be rotated at a desired speed. The rotation of the bar magnet alternately generates attractive and repulsive forces between the movable container 22 and the magnetic block 24, causing the movable sleeve 23 to reciprocate up and down, thereby contracting and expanding the volume of the chamber 20 and generating pressure. In this example, one or more springs 28 may be used in combination with or instead of the first magnetic ring 26 and the second magnetic ring 27. Here, the opaque structure 400 is configured as a single component and may be positioned directly above the magnetic block 24 at its lowest position. Although not shown, other components having holes 9 communicating with the cavity between the magnetic block 24 and the opaque structure 400 may be similar to those shown in other figures.

[0047] The above example shows a configuration in which the movable container 22 is concentrically positioned outside the fixed sleeve 21. However, embodiments of the present disclosure are not limited thereto. For example, Figure 10 is a cross-sectional view showing a stimulator comprising an air cylinder 2 having a fixed cylinder 201 outside a concentric piston 202 having a concave cavity 203. In this configuration, a power source 5 supplies power to a drive mechanism 3 (e.g., a motor) to generate a drive motion. A power output unit 30 (e.g., a reciprocating screw, the magnetic mechanism described above, or other configuration) converts the drive motion of the drive mechanism 3 into reciprocating motion, pushing the bottom wall 42 of the impermeable structure 4 into the piston 202 and moving the piston 202 into the cylinder 201, thereby reducing the volume and generating positive pressure. The power output unit 30 then reverses the motion, pulling the bottom wall 42 of the impermeable structure 4 downward to expand the volume and generate negative pressure. As a result, the pressure field generation unit 2 alternately generates positive and negative pressure for stimulating the user.

[0048] The bottom wall 42 is connected to an accordion-shaped bellows 41, which folds when the bottom wall 42 is in the upper position and unfolds when the bottom wall 42 is in the lower position.

[0049] As shown in Figure 2, even when the air cylinder 2 comprises a fixed sleeve 21 and a movable container 22 that moves in and out of the fixed sleeve 21 to generate intermittent pressure, it is not necessary to arrange an impermeable structure around the air cylinder. Figure 11 is a cross-sectional view showing a stimulator similar to that in Figure 2, and includes a flexible partition wall 45 provided across the width of the device as an impermeable structure. The flexible partition wall 45 has an opening through which the connecting rod 322 of the motion conversion unit 32 passes. The impermeable structure further includes a seal 46 at the opening of the flexible partition wall 45 to maintain the waterproofness of the impermeable structure. This seal 46 may be made of synthetic rubber, or it may include an elastic disc with one or more bellows to maintain airtightness even when the connecting rod 322 moves.

[0050] The embodiments described herein are illustrative and can be modified in many ways without departing from the spirit of this disclosure or the scope of the appended claims. For example, components and / or features of different embodiments can be combined or substituted for each other within the scope of this disclosure and the appended claims.

Claims

1. A stimulator, An outer housing with an opening, A power source located within the outer housing, A motor, which is disposed within the housing and generates rotational motion by receiving power from the power source, A motion conversion unit that converts rotational motion from the motor into reciprocating motion, An air cylinder configured to expand and contract the volume of a chamber by receiving reciprocating motion from the motion conversion unit, wherein the air cylinder expands and contracts the volume of the chamber by receiving reciprocating motion from the motion conversion unit, and in accordance with the expansion and contraction of the volume of the chamber, the chamber alternately supplies air inhalation and air ejection to the opening of the outer housing, The outer housing includes an impermeable structure that separates the air cylinder from the motor and the power source, A stimulator characterized by the following features.

2. Fixing member and The system comprises a movable member configured to reciprocate relative to the fixed member, The chamber is defined by the interior of at least one of the fixed members. The stimulator according to feature 1.

3. The fixing member is a fixing sleeve that is fixed to the outer housing, The movable member is a movable container arranged concentrically with the fixed sleeve and configured to move up and down around the fixed sleeve, wherein upward movement reduces the volume of the chamber, and downward movement increases the volume of the chamber. The opening of the outer housing is located at the top of the chamber, and positive pressure is supplied through the opening when the volume of the chamber decreases, and negative pressure is supplied through the opening when the volume of the chamber increases. The stimulator according to feature 2.

4. The fixing member is a fixing sleeve that is fixed to the outer housing, The movable member is a piston that is arranged concentrically with the fixed sleeve and configured to move up and down inside the fixed sleeve, wherein upward movement reduces the volume of the chamber, and downward movement increases the volume of the chamber. The opening of the outer housing is located at the top of the chamber, and positive pressure is supplied through the opening when the volume of the chamber decreases, and negative pressure is supplied through the opening when the volume of the chamber increases. The stimulator according to feature 2.

5. The aforementioned non-permeable structure is The bottom wall connected to the aforementioned movable container, It comprises a bellows-shaped side wall connected to the bottom wall, The bellows-like side wall is configured to fold when the volume of the chamber contracts and unfold when the volume of the chamber expands. The stimulator according to feature 1.

6. The aforementioned non-permeable structure is A flexible partition wall is provided across the inner width of the outer housing and has an opening through which the motion conversion section passes; A seal that maintains a waterproof connection between the flexible partition and the motion conversion section, The stimulator according to feature 1.

7. The opening located on the outside of the housing is positioned at the top of the chamber, and a positive pressure is supplied through the opening when the volume of the chamber expands, and a negative pressure is supplied through the opening when the volume of the chamber contracts. The stimulator according to feature 1.

8. The outer housing further comprises one or more holes communicating with a gap defined by the outside of the air cylinder and the inside of the impermeable structure, The gap contracts when the volume of the chamber of the air cylinder contracts, and expands when the volume of the chamber of the air cylinder expands. The stimulator according to feature 7.

9. The one or more holes are sealed by a sealing plug. The stimulator according to feature 7.

10. The outer housing is divisible into a top section and a bottom section, the top section comprising the air cylinder, and the bottom section comprising the power source, the motor, the motion conversion unit, and the opaque structure. The stimulator according to feature 1.

11. The top section and the bottom section are attached to each other by magnets and / or friction / pressure contact. The stimulator according to feature 10.

12. A stimulator, An outer housing with an opening, A power source located within the outer housing, An electromagnetic coil, disposed within the housing and receiving power from the power source to generate an intermittent magnetic field, An air cylinder configured to expand and contract the volume of the chamber by the intermittent magnetic field of the electromagnetic coil, wherein the chamber alternately supplies positive and negative pressure to the opening of the outer housing in accordance with the expansion and contraction of the chamber's volume, The outer housing includes a non-permeable structure that separates the air cylinder from the electromagnetic coil, A stimulator characterized by the following features.

13. The aforementioned air cylinder is A fixing sleeve that is fixed to the outer housing, A movable container is positioned concentrically with the fixed sleeve and configured to move up and down around the fixed sleeve, wherein the volume of the chamber is reduced when it moves upward and increased when it moves downward. The opening of the outer housing is located at the top of the chamber, and positive pressure is supplied through the opening when the volume of the chamber decreases, and negative pressure is supplied through the opening when the volume of the chamber increases. The stimulator according to feature 12.

14. A magnetic block is placed on the bottom surface of the movable container, and the magnetic force of the electromagnetic coil moves the movable container up and down. The stimulator according to feature 13.

15. The bias of the movable container is maintained by a spring or a pair of magnetic rings located inside. The stimulator according to feature 13.

16. The non-transparent structure comprises a partition wall provided across the width of the inner side of the outer housing. The stimulator according to feature 12.

17. A stimulator, An outer housing with an opening, A power source located within the outer housing, A motor, which is disposed within the housing and generates rotational motion by receiving power from the power source, A rod-shaped magnet connected to the output shaft of the motor and configured to rotate by the rotational motion of the motor, thereby generating a magnetic field whose polarity alternates, An air cylinder configured to expand and contract the volume of a chamber in accordance with the alternatingly changing polarity of a rotating bar-shaped magnet, wherein the chamber alternately supplies positive and negative pressure to the opening of the outer housing in accordance with the contraction and expansion of the chamber's volume, The outer housing includes an impermeable structure that separates the air cylinder from the bar magnet, motor, and power source, A stimulator characterized by the following features.

18. The aforementioned air cylinder is A fixing sleeve that is fixed to the outer housing, A movable container is arranged concentrically with the fixed sleeve and configured to move up and down around the fixed sleeve, wherein the volume of the chamber is reduced when the movable container moves upward and the volume of the chamber is increased when the movable container moves downward, due to an alternating magnetic field from a rotating bar magnet acting on a magnetic block placed inside the movable container. The opening of the outer housing is located at the top of the chamber, and positive pressure is supplied through the opening when the volume of the chamber decreases, and negative pressure is supplied through the opening when the volume of the chamber increases. The stimulator according to feature 17.

19. The aforementioned non-permeable structure is The outer housing comprises a partition wall provided across the inner width of the outer housing, The partition wall has a substantially cylindrical shape that surrounds the air cylinder. The stimulator according to feature 17.

20. The present invention further includes one or more springs disposed within the impermeable structure, the springs providing a restoring force to the air cylinder and contributing to the contraction of its volume. The stimulator according to feature 17.

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