Vacuum masturbator cup

Abstract

A vacuum masturbator cup, characterized in that it comprises: a receiving cavity for receiving soft colloid, the soft colloid being provided with a receiving channel connected to the outside of the vacuum masturbator cup, the receiving channel being configured to provide a passage for the insertion of genitals; a cup body comprising an elastically deformable body, the elastically deformable body being exposed to the receiving cavity as part of the side wall of the cup body; a control structure comprising a negative pressure generating section, the control structure controlling the negative pressure generating section to generate negative pressure, wherein when the control structure controls the negative pressure generating section to generate negative pressure while the soft colloid is pulled by the negative pressure, the negative pressure forces the elastically deformable body to deform toward the receiving cavity.

Description

[0001] This disclosure claims priority from the following filed patent applications: Chinese Patent Application No. CN202520100621.0, filed on January 15, 2025; Chinese Patent Application No. CN202520097284.4, filed on January 15, 2025; and US Patent Application No. US19 / 038880, filed on January 28, 2025. Technical area

[0002] The present disclosure relates to the field of adult products and, more particularly, to a vacuum masturbator cup. STATE OF THE ART

[0003] With the continuous development of the adult products market, masturbator cups have become a widely used and widely available sex product. However, most masturbator cups on the market have certain limitations. For example, the diameter of the cup body is usually fixed, which means that the stimulation method it can provide is relatively homogeneous and monotonous during use, and cannot provide a good experience. CONTENT OF THE PRESENT UTILITY MODEL

[0004] In a general aspect, there is provided a vacuum masturbator cup, characterized by comprising: a receiving cavity for receiving soft colloid, wherein the soft colloid is provided with a receiving channel connected to the outside of the vacuum masturbator cup, wherein the receiving channel is configured to provide a passage for the insertion of genitals; a cup body comprising an elastically deformable body, wherein the elastically deformable body is exposed to the receiving cavity as part of the side wall of the cup body;a control structure comprising a negative pressure generating section, the control structure controlling the negative pressure generating section to generate negative pressure, wherein, when the control structure controls the negative pressure generating section to generate negative pressure while the soft colloid is pulled by the negative pressure, the negative pressure forces the elastically deformable body to deform toward the receiving cavity;

[0005] In another general aspect, there is provided a vacuum masturbator cup, characterized by comprising: an outer cylinder, the interior of the outer cylinder comprising: an accommodation channel arranged in the center of the outer cylinder, the accommodation channel being used to accommodate a sexual organ; a controllable gas cavity, the controllable gas cavity being provided at an outer periphery of the accommodation channel and isolated from the accommodation channel, the controllable gas cavity being pressurized by discharging a gas, the controllable gas cavity comprising a first wall surface and a second wall surface, the first wall surface being opposite to the second wall surface, and the first wall surface being closer to the accommodation channel compared to the second wall surface;and a negative pressure generating portion, wherein the negative pressure generating portion communicates with the controllable gas cavity and generates the negative pressure, and wherein, when the negative pressure generating portion operates to generate the negative pressure within the controllable gas cavity, a portion of the second wall surface bulges and deforms toward the receiving channel and compresses the first wall surface such that a portion of the receiving channel is recessed toward the center of the outer cylinder.; Figures Fig. 1 is a perspective view showing the vacuum masturbator cup of the present disclosure. Fig. 2 is an exploded perspective view showing the main structure of the Fig. 1 shows the vacuum masturbator cup. Fig. 3 is a cross-sectional view showing the Fig. 1 shows the vacuum masturbator cup. Fig. 4 is a schematic perspective view showing a section of the Fig. 1 shows the vacuum masturbator cup. Fig. 5 is an enlarged view showing part III of Fig. 3 shows. Fig. 6 is a schematic diagram showing the use state of the vacuum masturbator cup. Specific embodiments

[0006] Referring to the Fig. 1 to 6, the vacuum masturbator cup 1000 with adjustable inner diameter in the present embodiment has an overall cylindrical structure comprising an outer cylinder 50, a cup body 101, a soft colloid 70 and a control structure 80.

[0007] A gap cavity 300 is formed inside the outer cylinder 50, and the gap cavity 300 serves to receive and fix the cup body 101 and the control structure 80.

[0008] As in the Fig. 3 to 6, a gap cavity 300 is formed in the outer cylinder 50 for receiving and securing the cup body 101 and the control structure 80. The outer cylinder 50 and the cup body 101 are openly and detachably connected to each other at a lateral end edge, and the bottom of the outer cylinder 50 and the bottom of the cup body 101 are provided at a spaced interval to form the gap cavity 300 between the outer cylinder 50 and the cup body 101. The gap cavity 300 includes a first cavity 300a disposed between the bottom wall 101a of the cup body 101 and the bottom wall 50a of the outer cylinder 50, and a second cavity 300b disposed between the side wall 101b of the cup body 101 and the side wall 50b of the outer cylinder 50, and the two cavities 300a and 300b are connected to each other.In this embodiment, the outer cylinder 50 further includes an opening portion 501 corresponding to the opening of the cylinder body and a bottom 502 corresponding to the bottom wall 50a. The cup depth of the cup body 101 is less than the cylinder depth of the outer cylinder 50, and the inner diameter progressively decreases from the opening portion 501 to the bottom 502, thereby forming the first cavity 300a and the second cavity 300b. It should be understood that in other embodiments, the cup body and the outer cylinder may have other structures and shapes. A first vent opening 1011 and a second vent opening 1012 are provided on the bottom wall 101a of the cup body 101.The first vent hole 1011 and the second vent hole 1012 each pass through the bottom wall 101a, so that the second cavity 300b and the inner cavity 500 of the cup body 101 are connected to each other and a gas passage is formed between the first cavity 300a, the second cavity 300b and the inner cavity 500 of the cup body 101.

[0009] The inner cavity of the cup body 101 forms a receiving cavity 500 for receiving the soft colloid 70. The gap between the cup body 101 and the soft colloid 70 is formed as a controllable gas cavity 100. Specifically, the controllable gas cavity 100 is formed by a first wall surface 1001 as the outer surface 1001 of the soft colloid 70 and a second wall surface 1002 as the inner surface 1002 of the cup body 101, which encloses gas. The first wall surface 1001 and the second wall surface 1002 are spaced apart from each other. The controllable gas cavity 100 is capable of being discharged by the control structure 80, so that it enters a negative pressure state, so that a part of the side wall 101b of the cup body 101 is provided with an inner diameter adjustment function.The cup body 101 includes a hard material portion and an elastically deformable body 20 exposed to the housing cavity 500 and forming a portion of the side wall of the cup body 101. The hard material portion and the elastically deformable body 20 are sealingly connected to connect the elastically deformable body 20 to the outer cylinder 50. The elastically deformable body 20 can be concavely deformed toward the interior of the cup body 101 under the action of an air pressure difference, thereby changing the inner diameter of the side wall 101b of the cup body 101. In this embodiment, the elastically deformable body 20 is an annular elastic material layer with a certain width that forms a part of the side wall 101b of the cup body 101.The thickness of the elastic material layer in the edge region (peripheral edge) of the elastically deformable body 20 is greater than the thickness of the elastic material layer in its central part, so that the central part between the two peripheral edges is formed in cross-section as a U-shaped concave region X. This structure has a more favorable effect on maintaining a specific shape of the elastically deformable body and on its fixation and shrinkage deformation. The hard material section is placed on the elastically deformable body 20 and adapted to the peripheral edge of the elastically deformable body 20.In this embodiment, the hard material portion comprises a clamping element 40 fitted into the central portion of the elastically deformable body 20, the clamping element 40 comprising a first clamping portion 40a and a second clamping portion 40b, the first clamping portion 40a and the second clamping portion 40b being arranged opposite each other and corresponding to the recessed area X fitted into the central portion of the elastically deformable body 20. In some embodiments, a convex rib is provided at the central portion of the elastically deformable body 20, and the opposite ends of the first clamping portion 40a and the second clamping portion 40b are provided in close proximity to the opposite sides of the convex rib.

[0010] The hard material portion also includes a cup body portion 10, wherein by clamping both sides of the elastically deformable body 20 with the cup body portion 10 and the clamping element 40, the hard material portion and the elastically deformable body 20 can be firmly connected.

[0011] The cup body portion 10 covers an end edge of the elastically deformable body 20 from one side of the elastically deformable body 20, for example, from the inside, and has a higher hardness than the elastically deformable body 20. The clamping member 40 covers the end edge of the elastically deformable body 20 from the other side of the elastically deformable body 20, for example, from the outside, and the clamping member 40 also has a higher hardness than the elastically deformable body 20. Since the hardness of the material of the cup body portion 100 is higher than that of the elastically deformable body 20 and the hardness of the material of the clamping member 40 is also higher than that of the elastically deformable body 20, the cup body portion 10 and the clamping member 40 can stably hold the elastically deformable body 20.

[0012] The respective end edges of the elastically deformable body 20 are sealed by being clamped between the cup body portion 10 and the clamping member 40, so that the wall surfaces of the cup body portion 10 are sealed. The elastically deformable body 20 is provided with a first upper snap portion 21 at the upper end peripheral portion and a first lower snap portion 22 at the lower end peripheral portion. On one side of the elastically deformable body 20, the first hard material portion is provided with a cup opening portion 110 at the upper end of the elastically deformable body 20 and a cup bottom portion 130 at the lower end of the elastically deformable body 20.The cup opening portion 110 forms the opening of the cup body 101 and covers the upper end of the elastically deformable body 20, and the cup opening portion 110 is provided with a second upper snap portion 111 corresponding to the first upper snap portion 21. The cup bottom portion 30 forms the cup bottom of the cup body 101 and covers the lower end of the elastically deformable body 20, and the bottom 30 of the cup is provided with a second lower snap portion 131 corresponding to the first lower snap portion 22. On the other side of the elastically deformable body 20, the second hard material portion 40 is provided with a third upper snap portion 41 at the upper end corresponding to the first upper snap portion 21 and a third lower snap portion 42 at the lower end corresponding to the first lower snap portion 22.As a result, the second upper snap portion 111 and the third upper snap portion 41 are clamped to both sides of the first upper snap portion 21 of the elastically deformable body 20, and the second lower snap portion 131 and the third lower snap portion 42 are clamped to both sides of the first lower snap portion 22 of the elastically deformable body 20. The hard material portion and the elastically deformable body 20 can be firmly connected, and the cup body 101 has a simple structure and is easy to install.

[0013] Here, the air pocket space 200 may be formed between the side of the elastically deformable body 20 opposite the side of the controllable gas cavity 100 and the clamping member 40. The air pocket space 200 may be in an atmospheric pressure state, but the air pocket space 200 is not limited to the atmospheric pressure state as long as it is higher than the controllable gas cavity 100 and sufficient to concavely deform the elastically deformable body 20.

[0014] The soft colloid (70) is located in the housing cavity (500) of the cup body (101), which is made of a soft material with good skin compatibility and high softness, such as silicone or rubber. The soft colloid 70 is provided with a receiving channel 700 connected to the outside of the vacuum masturbator cup 1000. One end of the receiving channel 700 is open to form a receiving opening 701, and the other end is closed to receive the penis (sexual organ) 1. Due to its material properties, the soft colloid 70 is able to close the opening of the cup body 101, enabling an effective seal between the soft colloid 70 and the cup body 101.This contributes to the ability to control the air pressure in the controllable gas cavity 100 between the soft colloid 70 and the cup body 101 by the control structure 80, and therefore, the gas between the soft colloid 70 and the cup body 101 is sometimes referred to as the controllable gas cavity 100. In the outer cylinder 50, the receiving channel 700 is located in the center, the controllable gas cavity 100 is provided on the circumference with the receiving channel 700 in the center, and the gap cavity 300 is provided on the circumference of the controllable gas cavity 100.

[0015] In the controllable gas cavity 100, the first wall surface 1001 is closer to the receiving channel 700 than the second wall surface 1002. Under atmospheric pressure, one side of the elastically deformable body 20 is in contact with the controllable gas cavity 100, and the first wall surface 1001 is spaced from the second wall surface 1002 by a gap. In other words, there is a gap between the elastically deformable body 20 and the soft colloid 70, which can ensure the space for the depression and deformation of the elastically deformable body 20. The other side of the elastically deformable body 20 is isolated from the controllable gas cavity 100.When the controllable gas cavity 100 is controlled to have a lower gas pressure than the gas on the other side of the elastically deformable body 20, the controllable gas cavity 100 is subjected to a negative pressure, and under this negative pressure, the elastically deformable body 20 is formed as a depressed structure that is deformed in a depressed manner toward the interior of the cup body 101. As the difference in gas pressure increases, the elastically deformable body 20 gradually contacts and compresses the receiving channel 700 of the soft colloid 70 to deform it. Specifically, the depressed structure pushes the first wall surface 1001 toward the center of the receiving channel 700, thereby forcing a part of the receiving channel 700 to be depressed (i.e., narrowed) toward the center.On the other hand, a part of the soft colloid 70 not disposed opposite to the recessed structure may bulge and deform under the negative pressure and move closer to the second wall surface 1002 in a direction away from the direction of the receiving channel 700, at which time the bottom surface 702 of the soft colloid 70 may be pulled closer to the bottom wall 101a of the cup body 101 by the negative pressure, and thus the receiving channel 700 may undergo radial deformation under the negative pressure, and its depth (ie, its length) may also increase.

[0016] In some embodiments of the present disclosure, a sealing ring 60 is provided between the soft colloid 70 and the cup body 101 to provide further sealing between the soft colloid 70 and the cup body 101.

[0017] In some embodiments of the present disclosure, the inner wall of the receiving channel 700 may be designed to have wrinkles, bumps, and other shapes to enrich the sexual experience on the tactile level through contact and friction with the penis 1 and to provide the user with delicate and multi-layered stimulation sensations.

[0018] The control structure 80 is housed in the first cavity 300a. The control structure 80 includes a vacuum generating section 81, a solenoid valve 82, a battery 83, a control circuit 84, and other electronic components controlled by the control structure 80. The vacuum generating section 81 communicates with the controllable gas cavity 100, and the vacuum generating section 81 is controlled by the control structure 80 to generate the vacuum. When the vacuum generating section 81 is controlled to start operation, the gas in the controllable gas cavity 100 is released to cause the gradual formation of a vacuum cavity therein. In the present disclosure, the term "vacuum cavity" includes a vacuum state and a near-vacuum state.When the negative pressure generating section 81 is operated to form the vacuum cavity in the controllable gas cavity 100, the soft colloid 70 within the controllable gas cavity 100 expands due to its own material properties, and the inner wall of the soft colloid 70 exerts a pulling force on the penis 1 toward the cup body 101, and stimulation is applied to the penis 1.

[0019] In some embodiments of the present disclosure, the negative pressure generating portion 81 is connected to the controllable gas cavity 100 via the first vent opening 1011.

[0020] When the negative pressure generating section 81 is controlled to generate the negative pressure, an exhaust passage is formed leading from the interior of the cup body 101 to the first vent port 1011, while the solenoid valve 82 is controlled to close the second vent port 1012 to prevent air from flowing from outside the cup body 101 into the interior. Over time, the controllable gas cavity 100 enters a negative pressure state.

[0021] When the negative pressure generating section 81 is not controlled (ie, closed) to perform venting to generate negative pressure, the solenoid valve 82 is controlled to establish communication between the controllable gas cavity 100 and the gap cavity 300 and to open the second vent port 1012, so that air flows from the outside of the cup body 101 into the interior of the cup body 101 through the second vent port 1012. Over time, the amount of gas in the controllable gas cavity 100 gradually increases, and the controllable gas cavity 100 returns to atmospheric pressure.

[0022] Battery 83 supplies power to the various electronic components required for operation. Control circuit 84 controls the function of the respective electronic components and may include an operating section 841 with a control button, a switch button, and the like.

[0023] The elastically deformable body 20 is provided in a ring shape on the side wall 101b of the cup body 101, which enables the application of a squeezing force to the soft colloid 70 in its circumferential direction to create a sexually stimulating experience, which is different from the tensile force of the negative pressure directly on the soft colloid 70. The tight connection between the hard material portion and the elastically deformable body 20 effectively seals the gas between the elastically deformable body 20 and the hard material portion, and the effective sealing of the gas between the soft colloid 70 and the cup body 101 reliably ensures that the gas in the controllable gas cavity 100 is controllable.

[0024] In some embodiments of the present disclosure, the cup body 101 may be a whole body, the hard material portion is a one-piece structure, the hard material portion is connected to the elastically deformable body 20, and the connection is fused as a single piece, whereby the hard material portion and the elastically deformable body 20 can be firmly connected, and the structure is thus simpler.

[0025] In some embodiments of the present disclosure, the elastically deformable body 20 is arranged annularly on the side wall 101b of the cup body 101, and the hard material portion includes a cup mouth wall portion forming the cup mouth of the cup body and a cup bottom wall portion forming the cup bottom of the cup body. By utilizing the elasticity of the elastically deformable body 20 to elastically fasten the elastically deformable body 20 between the cup mouth wall portion and the cup bottom wall portion, it is also possible to firmly connect the hard material portion to the elastically deformable body 20. The rigid material portion and the elastically deformable body 20 can also be firmly connected to each other, and the structure of this method is simple and easy to install.

[0026] In some embodiments of the present disclosure, the air pocket space 200 may be divided into one or more regions as desired, so that the elastically deformable body 20 is formed as one or more structures corresponding to each of the one or more regions of the air pocket space 200, which may play an important role in later use. The heights and sizes, shapes, etc. of the recesses between the multiple regions may be the same or different.

[0027] In some embodiments of the present disclosure, the elastically deformable body 20 includes a plurality of elastically deformable partial bodies, wherein the plurality of elastically deformable partial bodies are arranged on the side wall 101b of the cup body 101, e.g., the plurality of elastically deformable partial bodies are distributed at intervals along the intersection direction with the radial direction, which enables diversified stimulation sensations and meets the needs of different users.

[0028] In some embodiments of the present disclosure, a translucent viewing window 51 is provided on the side wall 50b of the outer cylinder 50. The soft colloid 70 has an opening through the overlapping part of the viewing window 51, so that the soft colloid 70 does not block the viewing window 51 and is available for the user to observe the changing state of the holding channel 700 through the viewing window 51. In particular, when the elastically deformable body 20 faces the viewing window 51, the user can intuitively observe the change in the state of the soft colloid 70 as it gradually increases under the extrusion of the elastically deformable body 20 through the viewing window 51, enriching the sexual experience on a visual level.

[0029] When using the vacuum masturbator cup 1000 of the present disclosure, as shown in Fig.As shown in Figure 6, the penis 1 is placed in the receiving channel 700 of the soft colloid 70. The negative pressure generating section 81 is operated by an operating button 841 or the like, and the solenoid valve 82 isolates the controllable gas cavity 100 from external gases. The negative pressure generating section 81 discharges the gas inside the cup body 101, so that the air pressure in the controllable gas chamber 100 gradually decreases, and a negative pressure is generated on one side of the elastically deformable body 20, while the other side of the elastically deformable body 20 is in a pressure environment higher than the negative pressure, i.e.It is in a state of atmospheric pressure, and therefore, an air pressure difference is generated between the two sides of the elastically deformable body 20. This negative pressure forces the elastically deformable body 20 to elastically deform toward one side of the receiving channel 700 and compresses the receiving channel 700 of the soft colloid 70 to deform it. As a result, the inner diameter of the soft colloid 70 narrows as the soft colloid 70 expands and moves toward the bottom of the cup body 101, providing the user with a variety of stimulating experiences. Furthermore, due to the simple structure of the negative pressure masturbator cup 1000 of the present disclosure, the handheld controller has good durability.

[0030] After use, the negative pressure generating section 81 is deactivated by the operation button 841 or the like, the solenoid valve 82 connects the controllable gas cavity 100 to the external gas, and the external gas flows into the controllable gas cavity 100 under the air pressure difference until the atmospheric pressure state is restored. At this time, the soft colloid 70 can be removed for easy cleaning.

[0031] The vacuum masturbator cup 1000 of the present disclosure has an adjustable inner diameter, which can provide adult users with rich and diverse sexual experiences under the premise of legality, privacy, and compliance with public order and morality. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 202520100621.0

[0001] CN 202520097284.4

[0001] US 19 / 038880

[0001]

Claims

[1] A vacuum masturbator cup, characterized by that it includes: a receiving cavity for receiving soft colloid, the soft colloid being provided with a receiving channel connected to the outside of the vacuum masturbator cup, the receiving channel being configured to provide a passage for the insertion of genitals; a cup body comprising an elastically deformable body, the elastically deformable body being exposed to the receiving cavity as part of the side wall of the cup body; a control structure comprising a negative pressure generating section, the control structure controlling the negative pressure generating section to generate negative pressure, wherein when the control structure controls the negative pressure generating section to generate negative pressure while the soft colloid is pulled by the negative pressure, the negative pressure forces the elastically deformable body to deform toward the receiving cavity. [2] Vacuum masturbator cup according to claim 1, characterized by that it also includes: a controllable gas cavity formed between the cup body and the soft colloid, the controllable gas cavity being in a sealed state, and the negative pressure generating section is connected to the controllable gas cavity, wherein when the negative pressure generating section is controlled to generate the negative pressure, the gas in the controllable gas cavity is discharged, and while the elastically deformable body deforms concavely toward one side of the controllable gas cavity, it compresses the soft colloid to change the inner diameter of the receiving channel. [3] Vacuum masturbator cup according to claim 1, characterized by that when the negative pressure generating section is controlled to generate the negative pressure, an air pressure difference is generated on both sides of the elastically deformable body, and the elastically deformable body deforms under the air pressure difference to the side with a lower air pressure, and when the negative pressure generating section is not controlled to generate the negative pressure, a gap is formed between the elastically deformable body and the soft colloid. [4] Vacuum masturbator cup according to claim 1, characterized by that the elastically deformable body is arranged in a ring shape on the side wall of the cup body. [5] Vacuum masturbator cup according to claim 1, characterized by that the elastically deformable body comprises a plurality of elastically deformable partial bodies, and the plurality of elastically deformable partial bodies are arranged on the side walls of the cup body. [6] Vacuum masturbator cup according to claim 1, characterized by that the elastically deformable body consists of an elastic material layer with a certain width, and the material thickness of the outer peripheral part of the elastically deformable body is greater than the material thickness of the central part of the elastically deformable body, whereby a concave recessed area is formed in the central part. [7] Vacuum masturbator cup according to claim 1, characterized bythat the cup body further comprises a hard material portion which is connected to the elastically deformable body. [8] Vacuum masturbator cup according to claim 7, characterized by that the elastically deformable body is provided in a ring shape on the side wall of the cup body, wherein the hard material section comprises: a cup body portion whose hardness is harder than the elastically deformable body; and a clamping element whose hardness is harder than that of the elastically deformable body, wherein the individual end edges of the elastically deformable body are sealed by clamping between the cup body portion and the clamping element to seal the wall of the cup body portion, wherein the Vacuum masturbator cup further comprises a controllable gas cavity formed between the cup body and the soft colloid, wherein the controllable gas cavity is in a sealed state, wherein one side of the elastically deformable body is in contact with the controllable gas cavity and an air pocket space is formed between the other side of the elastically deformable body and the clamping element, wherein, when the negative pressure generating section is controlled to generate the negative pressure and the negative pressure is formed in the controllable gas cavity, the air pressure in the air pocket space is greater than the air pressure in the controllable gas cavity, wherein the air pocket space defines one or more regions, so that the elastically deformable body is formed as one or more structures corresponding to each of the one or more regions of the air pocket space, wherein the one or several structures are concavely deformed towards the center of the cup body. [9] Vacuum masturbator cup according to claim 8, characterized by that the cup body section comprises: a cup opening portion forming the opening of the cup body and covering the upper end of the elastically deformable body; and a cup bottom portion forming the bottom of the cup of the cup body and covering the lower end of the elastically deformable body. [10] Vacuum masturbator cup according to claim 1, characterized by that the vacuum masturbator cup further comprises a first vent opening and a second vent opening, wherein the first vent opening and the second vent opening both open through the cup body, wherein the control structure further comprises a solenoid valve, wherein, when the negative pressure generating section is controlled to generate the negative pressure, an exhaust passage is formed leading from the interior of the cup body to the first vent hole, and the solenoid valve closes the second vent hole to prevent air from outside the cup body from flowing into the interior of the cup body; and wherein, when the negative pressure generating section is not controlled to generate the negative pressure, the solenoid valve opens the second vent hole so that air flows from outside the cup body into the interior of the cup body through the second vent hole. [11] Vacuum masturbator cup, characterized by that it includes: an outer cylinder, the interior of the outer cylinder comprising: a housing channel arranged in the center of the outer cylinder, the housing channel being used to accommodate a sexual organ; a controllable gas cavity, the controllable gas cavity being provided at an outer periphery of the housing channel and being isolated from the housing channel, the controllable gas cavity being placed under negative pressure by discharging a gas, the controllable gas cavity having a first wall surface and a second wall surface, wherein the first wall surface is opposite the second wall surface, and the first wall surface is closer to the accommodation channel compared to the second wall surface; and a negative pressure generating section, wherein the negative pressure generating section is in communication with the controllable gas cavity and generates the negative pressure, and wherein, when the negative pressure generating section operates to generate the negative pressure within the controllable gas cavity, a part of the second wall surface bulges and deforms toward the receiving channel and compresses the first wall surface so that a part of the receiving channel is recessed toward the center of the outer cylinder. [12] Vacuum masturbator cup according to claim 11, characterized by that it also includes: a cup body housed within the outer cylinder and comprising an elastically deformable body, the inner surface of the cup body being formed as the second wall surface; and a soft colloid housed inside the cup body, the outer surface of the soft colloid being formed as the first wall surface, wherein, when the negative pressure generating section operates to generate the negative pressure within the controllable gas cavity, the first wall surface is spaced from the elastically deformable body by a gap. [13] Vacuum masturbator cup according to claim 11, characterized by that when the negative pressure generating section operates to generate the negative pressure within the controllable gas cavity, a part of the first wall surface not pressed by the second wall surface moves in a direction away from the receiving channel and near the second wall surface. [14] Vacuum masturbator cup according to claim 12, characterized by that the elastically deformable body is provided in a ring shape on the side wall of the cup body. [15] Vacuum masturbator cup according to claim 12, characterized by that the elastically deformable body comprises a plurality of elastically deformable partial bodies, and the plurality of elastically deformable partial bodies are arranged on the side walls of the cup body. [16] Vacuum masturbator cup according to claim 12, characterized by that the elastically deformable body consists of an elastic material layer with a certain width, and the material thickness of the outer peripheral part of the elastically deformable body is greater than the material thickness of the central part of the elastically deformable body, whereby a concave recessed area is formed in the central part. [17] Vacuum masturbator cup according to claim 12, characterized by that the cup body further comprises a hard material portion which is connected to the elastically deformable body. [18] Vacuum masturbator cup according to claim 17, characterized bythat the elastically deformable body is provided in a ring shape on the side wall of the cup body, wherein the hard material section comprises: a cup body portion whose hardness is harder than the elastically deformable body; and a clamping element whose hardness is harder than that of the elastically deformable body, wherein the individual end edges of the elastically deformable body are sealed by clamping between the cup body portion and the clamping element to seal the wall of the cup body portion, wherein the Vacuum masturbator cup further comprises a controllable gas cavity formed between the cup body and the soft colloid, wherein the controllable gas cavity is in a sealed state, wherein one side of the elastically deformable body is in contact with the controllable gas cavity and an air pocket space is formed between the other side of the elastically deformable body and the clamping element, wherein, when the negative pressure generating section is controlled to generate the negative pressure and the negative pressure is formed in the controllable gas cavity, the air pressure in the air pocket space is greater than the air pressure in the controllable gas cavity, wherein the air pocket space defines one or more regions, so that the elastically deformable body is formed as one or more structures corresponding to each of the one or more regions of the air pocket space, wherein the one or several structures are concavely deformed towards the center of the cup body. [19] Vacuum masturbator cup according to claim 18, characterized by that the cup body section comprises: a cup opening portion forming the opening of the cup body and covering the upper end of the elastically deformable body; and a cup bottom portion forming the bottom of the cup of the cup body and covering the lower end of the elastically deformable body. [20] Vacuum masturbator cup according to claim 12, characterized byin that the negative pressure masturbator cup further comprises a first vent and a second vent, wherein the first vent and the second vent both open through the cup body, wherein the negative pressure masturbator cup further comprises a solenoid valve, wherein, when the negative pressure generating section is controlled to generate the negative pressure, an outlet passage is formed leading from the interior of the cup body to the first vent, and the solenoid valve closes the second vent to prevent air from outside the cup body from flowing into the interior thereof; and wherein, when the negative pressure generating section is not controlled to generate the negative pressure, the solenoid valve opens the second vent so that air flows from outside the cup body into the interior thereof through the second vent.

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