Sector-shaped reciprocating blowing and sucking apparatus and massage apparatus

Abstract

Provided is a sector-shaped reciprocating blowing and sucking apparatus and a massage apparatus, which belong to the technical field of massagers. The sector-shaped reciprocating blowing and sucking apparatus comprises: a sector-shaped cavity with an arc-shaped axis; a piston assembly provided with a piston body; and a blowing and sucking port. The piston body is matched with an inner cavity of the sector-shaped cavity to define a piston cavity. The blowing and sucking port is in communication with the piston cavity and is configured to be in contact with the skin of a body part to be massaged. A relative sector-shaped reciprocating motion is conducted between the sector-shaped cavity and the piston body, and the sector-shaped motion trajectory of the sector-shaped reciprocating motion coincides with the arc-shaped axis. By utilizing the arc-shaped motion trajectory of the piston, the sector-shaped reciprocating motion is directly achieved through motor rotation, avoiding a complex transmission structure required for converting a rotary motion into a linear motion in a traditional linear piston structure. Therefore, the driving system is simplified, the manufacturing cost and the energy loss are reduced, and the size and the internal space layout of the device are optimized, thereby improving the performance and the user experience of the product.

Description

A fan-shaped reciprocating blowing and sucking device and a massage device Technical Field

[0001] This invention belongs to the field of massager technology, and relates to a fan-shaped reciprocating blowing and sucking device and a massage device. Background Technology

[0002] As society becomes increasingly open, people are paying more attention to their health and emotional needs. Adult sex toys, as auxiliary devices for personal privacy, have become a product type with growing market demand. Suction massagers, as one type, simulate oral sucking movements and combine vibration or airflow technology to provide a specific comfortable experience, and are widely used in personal care, emotional regulation, and partner interaction.

[0003] Existing suction-type adult sex toys primarily rely on negative pressure airflow to generate suction, combined with vibration modules to provide different massage modes. However, existing products still have some problems and shortcomings during use, specifically as follows:

[0004] The negative pressure generating device uses a linear piston structure. However, to match the linear reciprocating motion of the piston, the motor and transmission structure must usually be arranged on one side perpendicular to the direction of the fan-shaped reciprocating motion. This arrangement directly increases the lateral dimension of the massager, increasing the overall size and inconvenience of the device. Moreover, this increase in size does not result in a significant improvement in the corresponding airflow intake and exhaust volume, limiting the performance of the device. Summary of the Invention

[0005] Based on the above technical background, the present invention provides a fan-shaped reciprocating blowing and sucking device and a massage device.

[0006] The following is one possible inventive scheme based on the concept of this invention:

[0007] A fan-shaped reciprocating blowing and suction device, comprising:

[0008] A fan-shaped cavity with an arc-shaped axis L;

[0009] Piston assembly with piston body;

[0010] Blow / suck mouth;

[0011] The piston body matches the inner cavity of the sector-shaped cavity and together they form a piston cavity;

[0012] The blowing and suction port is connected to the piston chamber and is configured to contact the skin of the area to be massaged, and a pressure change field of positive and negative pressure is alternately applied to the skin of the area to be massaged through the blowing and suction port;

[0013] The sector-shaped cavity and the piston body have relative sector-shaped reciprocating motion; and the sector-shaped motion trajectory of the sector-shaped reciprocating motion is the same as that of the arc axis L.

[0014] Preferably, it includes:

[0015] The cross-section S of the fan-shaped cavity perpendicular to the arc axis L is one of a circle, a rectangle, or an ellipse.

[0016] Preferably, the major axis of the cross section S is parallel to the plane of the sector-shaped motion trajectory.

[0017] Preferably, the blow-in / suck-out port is the opening of the fan-shaped cavity or an independent component communicating with the fan-shaped cavity.

[0018] Preferably, the blow-in port is an opening in the piston body or a separate component communicating with the piston body.

[0019] Preferably, the piston body has a C-shaped annular groove and an O-shaped piston ring disposed along its outer periphery;

[0020] The inner diameter r1 of the O-ring piston ring and the bottom diameter r2 of the C-ring groove satisfy the following condition: 1.5mm ≤ r1 - r2 ≤ 4mm.

[0021] Preferably, it includes:

[0022] Connecting arm;

[0023] Fixed connection part;

[0024] Shaft connection part;

[0025] Wherein, the fixed connecting part is connected to the sector-shaped cavity to fix the sector-shaped cavity, the shaft connecting part is disposed on the connecting arm so that the piston body can perform the sector-shaped reciprocating motion around the shaft connecting part, and the connecting arm and the piston body are connected; or,

[0026] The fixed connection part is connected to the piston body to fix the piston body. The shaft connection part is disposed on the connecting arm so that the sector-shaped cavity can perform the sector-shaped reciprocating motion around the shaft connection part, and the connecting arm and the sector-shaped cavity are connected.

[0027] Preferably, a local area on the outer periphery of the piston body has a C-shaped groove;

[0028] A floating sealing body is provided inside the C-shaped groove;

[0029] The floating degree of freedom of the floating seal is located in the plane of the piston body.

[0030] Preferably, it includes:

[0031] A drive assembly having a drive element and a drive connection part;

[0032] The driving component is connected to the driving connection part;

[0033] The drive connection part and the shaft connection part form an eccentric connection.

[0034] Preferably, it includes a first seal;

[0035] The first sealing element is connected between the fan-shaped cavity and the blow-in / suck-out port.

[0036] Preferably, the first seal has a degree of freedom of extension and contraction along the arcuate axis L;

[0037] The degree of freedom of extension is configured to allow the first seal to compress along the arcuate axis L and to stretch along the arcuate axis L.

[0038] Preferably, it includes a second seal;

[0039] The second seal is disposed between the drive member and the drive connection portion.

[0040] The present invention also provides a massage device, comprising:

[0041] case;

[0042] The fan-shaped reciprocating blowing and suction device as described in any of the above technical solutions is disposed inside the housing.

[0043] The beneficial effects of this invention are manifested in many aspects, some of which are as follows:

[0044] By utilizing the arc-shaped motion trajectory of the piston, the fan-shaped reciprocating motion is achieved directly through the rotation of the motor, avoiding the complex transmission structure required to convert rotational motion into linear motion in traditional linear piston structures. This not only simplifies the drive system, reduces manufacturing costs and energy consumption, but also optimizes the size and internal space layout of the equipment, improving product performance and user experience. The coaxial arrangement of the motor, piston assembly, and fan-shaped cavity makes the equipment more compact, meeting the modern product requirements for miniaturization and high efficiency. Attached Figure Description

[0045] Figure 1 is an exploded view of one of the fan-shaped reciprocating blowing and suction devices proposed in this invention;

[0046] Figure 2 is a second exploded view of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 1.

[0047] Figure 3 is a front view of the fan-shaped reciprocating blowing and suction device shown in Figure 1;

[0048] Figure 4 is a cross-sectional view of the fan-shaped reciprocating blowing and suction device shown in Figure 3.

[0049] Figure 5 is a magnified view of the structure shown in Figure 4 at point A;

[0050] Figure 6 is one of the perspective views of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 1;

[0051] Figure 7 is a second perspective view of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 1;

[0052] Figure 8 is a third perspective view of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 1;

[0053] Figure 9 is a perspective view of one of the other structures of the fan-shaped reciprocating blowing and suction device proposed in this invention;

[0054] Figure 10 is a second perspective view of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 9;

[0055] Figure 11 is an exploded view of the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 9;

[0056] Figure 12 is a front view of the fan-shaped reciprocating blowing and suction device shown in Figure 9;

[0057] Figure 13 shows the fan-shaped reciprocating blowing and suction device with the structure shown in Figure 12;

[0058] Figure 14 is a schematic diagram of the fan-shaped reciprocating blowing and suction device proposed in this invention when the cross section S is irregular.

[0059] Figure 15 is a cross-sectional view of the massage device proposed in this invention;

[0060] Figure 16 is a schematic diagram of the C-shaped annular groove and the O-shaped piston ring in the fan-shaped reciprocating blowing and suction device proposed in this invention;

[0061] Figure 17 is one of the schematic diagrams showing the cooperation between the blow-suction nozzle and the blow-suction port in the fan-shaped reciprocating blow-suction device proposed in this invention;

[0062] Figure 18 is a second schematic diagram of the cooperation between the blow-suction nozzle and the blow-suction port in the fan-shaped reciprocating blow-suction device proposed in this invention.

[0063] Explanation of reference numerals in the attached drawings: 1. Fan-shaped cavity; 2. Piston assembly; 201. Piston body; 2011. Piston disc; 2013. Through hole; 3. Airflow guide; 301. Blow-in / suck-out port; 302. Blow-in / suck-out nozzle; 303. Airflow guide tube; 4. Piston chamber; 5. C-ring groove; 6. O-ring piston ring; 7. Connecting arm; 8. Fixed connection part; 9. Shaft connection part; 901. Connecting seat; 902. Mounting groove; 10. C-groove; 11. Floating seal; 12. Drive assembly; 1201. Drive element; 1202. Drive connection part; 12021. Eccentric disc; 12022. Eccentric rod; 13. First seal; 14. Second seal; 15. Housing. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] As shown in Figures 1 to 13, the first embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, comprising:

[0066] A fan-shaped cavity 1 with an arcuate axis L;

[0067] Piston assembly 2 having piston body 201;

[0068] 301 blow / suction port;

[0069] Wherein, the piston body 201 matches the inner cavity of the sector-shaped cavity 1 and surrounds it to form the piston cavity 4;

[0070] The blowing and suction port 301 is connected to the piston chamber 4 and is configured to contact the skin of the area to be massaged, and the blowing and suction port 301 alternately applies a pressure change field of positive and negative pressure to the skin of the area to be massaged.

[0071] The sector-shaped cavity 1 and the piston body 201 have relative sector-shaped reciprocating motion; and the sector-shaped motion trajectory of the sector-shaped reciprocating motion is the same as that of the arc axis L.

[0072] In this embodiment, matching the piston body 201 with the inner cavity of the sector cavity 1 means that the shape and size of the piston body 201 are the same as or nearly the same as the shape and size of the inner cavity of the sector cavity 1, thereby making the piston cavity 4 a completely sealed or nearly completely sealed cavity.

[0073] The relative fan-shaped reciprocating motion between piston body 201 and fan-shaped cavity 1 means that driving either structure (referring to fan-shaped cavity 1 and piston body 201) to reciprocate, the trajectory of this reciprocating motion (i.e., the fan-shaped motion trajectory) is the same as the arc axis L, thus constituting fan-shaped reciprocating motion (essentially a piston motion reciprocating along the arc axis L), thereby causing piston cavity 4 to inhale or exhale gas. Furthermore, "relative" means that fan-shaped cavity 1 remains stationary while driving piston body 201 to move, or piston body 201 remains stationary while driving fan-shaped cavity 1 to move.

[0074] As the piston chamber 4 inhales or exhales gas, the blow-in / blow-out port 301, which is connected to the piston chamber 4, also inhales or exhales gas synchronously. When the blow-in / blow-out port 301 comes into contact with the skin of the area to be massaged, it is foreseeable that the blow-in / blow-out port 301 and the skin will form a pressure change field that alternately applies positive pressure (referring to exhaled gas) and negative pressure (referring to inhaled gas). The skin will feel the blowing and sucking massage stimulation effect due to the pressure change field.

[0075] In one specific embodiment, when the piston body 201 moves and the fan-shaped cavity 1 is stationary, the suction port 301 serves as the opening of the fan-shaped cavity. Specifically, the opening formed by the fan-shaped cavity 1 can be used as a suction port 301 that contacts the skin of the area to be massaged.

[0076] Alternatively, the blow-in / suck-out port 301 can be a separate component. It communicates with the fan-shaped cavity 1 to allow airflow to be directed out or drawn in.

[0077] In another specific embodiment, when the piston body 201 is stationary and the fan-shaped cavity 1 moves, the blow-in / suction port 301 serves as the opening of the piston body 201. Specifically, one end of the piston body 201 is located inside the fan-shaped cavity 1, and the other end extends out of the fan-shaped cavity 1. Furthermore, the piston body 201 has a channel inside for airflow to be discharged or drawn in, and the other end of the piston body 201 forms an opening that can be used as a blow-in / suction port 301 that contacts the skin of the area to be massaged.

[0078] Alternatively, the blow-in / draw-out port 301 can be a separate component. It communicates with the piston body 201 to allow airflow to be directed out or drawn in.

[0079] In the two specific embodiments described above, and when the blowing and suction port 301 is an independent component, it also includes an airflow guide 3, which can be a cylindrical structure and is referred to as an airflow guide tube 303.

[0080] The airflow guide tube 303 can be made of rigid or flexible material. Furthermore, the airflow guide tube 303 has two connection methods:

[0081] First, the airflow guide tube 303 is connected to the fan-shaped cavity 1. The two can be integrally formed or detachable (e.g., threaded connection). Furthermore, the airflow guide tube 303 has two openings, one of which is used to communicate with the piston cavity 4 to facilitate airflow, and the other opening is used to contact the skin, i.e., the inhalation / blowout port 301.

[0082] In this connection configuration, the piston body 201 needs to be driven to move.

[0083] Secondly, the airflow guide tube 303 is connected to the piston body 201. The airflow guide tube 303 also has two openings. One opening communicates with the piston chamber 4 to facilitate airflow, and the other opening is for skin contact, i.e., the inhalation / blowout port 301. In this connection configuration, the piston body 201 includes at least a piston disc 2011. The shape and size of the piston disc 2011 match the shape and size of the inner cavity of the fan-shaped cavity 1. The piston disc 2011 has a through hole 2013. The opening of the airflow guide tube 303 communicates with the piston chamber 4 through the through hole 2013 to guide gas into or out of the piston chamber 4. Furthermore, the opening of the airflow guide tube 303 can directly pass through the through hole 2013 to enter the interior of the piston chamber 4, or the airflow guide tube 303 can communicate with the through hole 2013.

[0084] In this configuration, the sector cavity 1 needs to be driven to move.

[0085] In one specific embodiment, the airflow guide tube 303 can be:

[0086] Firstly, the airflow guide tube 303 has a straight cylindrical structure, which is integrally formed with the fan-shaped cavity 1, or can be detachably connected. The axis of the airflow guide tube 303 and the arc axis L have an angle α, the value of which is between 30° and 90°.

[0087] Secondly, the airflow guide tube 303 has a curved cylindrical structure, and the axis of the curved cylindrical structure is the same as the arc axis L. The opening at one end of the airflow guide tube 303 (non-blow-inlet 301) extends into the interior of the piston chamber 4 through the through hole 2013 located in the piston disk 2011, or the opening at one end of the airflow guide tube 303 (non-blow-inlet 301) communicates with the through hole 2013 located in the piston disk 2011. The curved cylindrical structure can better accommodate the fan-shaped reciprocating motion, avoiding motion interference between the airflow guide tube 303 and the fan-shaped cavity 1.

[0088] It should be noted that the airflow guide 3 is not limited to the airflow guide tube 303, i.e., the cylindrical structure. The airflow guide 3 can also be a conical structure, a slender tubular structure, or a thick tubular structure, etc. As long as it can guide the outward and inward flow of air, it can be called an airflow guide 3.

[0089] The air pressure change field should be understood as follows: when the blow-in / suck-out port 301 comes into contact with the skin, the two form a completely sealed or nearly completely sealed space. The airflow acts on the skin within this space to create a blowing-in / sucking massage stimulation effect.

[0090] Furthermore, since the trajectory of the fan-shaped reciprocating motion is along the arc axis L, the advantage of this structure is that:

[0091] Firstly, traditional linear piston structures require converting the rotary motion of the motor into linear motion, typically necessitating the addition of transmission structures such as connecting rods, cranks, or gears. This not only increases the complexity of the device but also raises manufacturing and maintenance costs.

[0092] In this embodiment, the rotational motion of the motor can be directly used to drive the sector-shaped cavity 1 or the piston body 201 in a sector-shaped reciprocating motion without the need for motion mode conversion. This greatly simplifies the drive system and reduces the number of parts and assembly steps.

[0093] Secondly, the motor can be positioned on the same straight line as the piston assembly 2 and the sector cavity 1, forming a coaxial arrangement. This design reduces the lateral dimensions of the device, making it more compact and lightweight. The coaxial arrangement optimizes internal space, avoiding the need for additional space occupied by the motor and transmission mechanism, and providing more design flexibility for other functional components.

[0094] Third, it eliminates the process of converting rotary motion into linear motion, reducing mechanical friction and energy loss, and improving the overall energy efficiency of the device. Direct drive reduces intermediate steps, lowers the probability of failure, and improves the reliability and durability of the device.

[0095] Fourth, due to the reduced lateral dimensions of the equipment, the product is more ergonomically designed, making it more comfortable to hold and operate. The elimination of mechanical friction in the transmission mechanism may reduce noise and vibration during operation, providing users with a quieter operating environment.

[0096] This embodiment utilizes the arc-shaped motion trajectory of the piston to directly achieve sector-shaped reciprocating motion using the rotation of the motor, avoiding the complex transmission structure required to convert rotational motion into linear motion in traditional linear piston structures. This not only simplifies the drive system, reduces manufacturing costs and energy consumption, but also optimizes the size and internal space layout of the equipment, improving product performance and user experience. The coaxial arrangement of the motor, piston assembly 2, and sector-shaped cavity 1 makes the equipment more compact, meeting the modern product requirements for miniaturization and high efficiency.

[0097] As shown in Figures 17 and 18, in one specific embodiment, a blow-suction nozzle 302 is also included. The blow-suction nozzle 302 is made of a flexible material to replace the blow-suction opening 301 in contact with the skin, thereby providing a blow-suction massage stimulation effect. Specifically, the blow-suction nozzle 302 is integrally formed with the blow-suction opening 301, or it can be detachably connected. It has a through-hole cylindrical or disc-shaped structure, and the blow-suction nozzle 302 has an outer edge arranged circumferentially, and the outer edge is made of a flexible material such as silicone.

[0098] Furthermore, the end face of the mouthpiece 302 that contacts the skin can be a flat surface or a curved surface with a certain curvature.

[0099] The 302 blow-suction nozzle can also be made into mouth shape, vagina shape, etc., according to actual needs.

[0100] It should be noted that the blow-suction port 301 can come into direct contact with the skin, or, after installing the blow-suction nozzle 302, it can come into contact with the skin through the blow-suction nozzle 302.

[0101] As shown in Figures 6 to 8, in one specific embodiment, the cross-section S of the fan-shaped cavity 1 perpendicular to the arc axis L is one of a circle, a rectangle, or an ellipse.

[0102] Specifically, the circular cross-section S has symmetry, which allows for uniform airflow distribution within the cavity, reducing eddies and pressure loss, and improving airflow efficiency. Furthermore, the circular structure exhibits uniform stress distribution under stress, exhibiting strong resistance to compression and deformation, thus contributing to improved durability and reliability of the device.

[0103] A rectangular cross-section S makes better use of space and helps optimize the internal structural layout. The aspect ratio of the rectangular cross-section S can be designed to different dimensions, making it easier to control the airflow characteristics in a specific direction and meet specific massage effect requirements.

[0104] The elliptical cross-section S extends in one direction, combining the hydrodynamic characteristics of a circle with the space-saving advantages of a rectangle. By adjusting the ratio of the major and minor axes of the ellipse, the airflow speed and pressure distribution within the cavity can be precisely controlled, achieving more refined massage intensity control. The elliptical appearance is more streamlined and aesthetically pleasing, aligning with modern product design trends and enhancing the product's market appeal.

[0105] In summary, the shape of different cross-sections S affects the flow pattern of airflow within the cavity. A circular cross-section S helps to create a stable airflow and reduce turbulence; while elliptical and rectangular cross-sections S can guide the airflow to strengthen in a specific direction, providing stronger or more concentrated suction.

[0106] On the other hand, the shape of the cross-section S affects the resonant frequency of the cavity. Circular and elliptical cross-sections S help reduce noise and vibration during operation, improving the user experience.

[0107] This embodiment offers a variety of S-shaped cross-sections, allowing the device to be customized to different usage scenarios and needs. For example, for applications requiring stronger suction, an elliptical S-shaped cross-section can be selected to increase the contact area and adsorption effect. Rectangular and elliptical S-shaped cross-sections help optimize the internal space layout, making the device smaller and more portable while maintaining its functionality.

[0108] On the other hand, the choice of the shape of the cross-section S needs to be coordinated with the movement mode of the sector cavity 1. The major axis of the elliptical and rectangular cross-section S can be parallel to the plane of sector movement to ensure the airtightness and movement stability of the cavity during movement.

[0109] As shown in Figure 14, in another specific embodiment, the cross-section S of the sector-shaped cavity 1 perpendicular to the arc axis L is irregularly shaped. Specifically, one part of the sector-shaped cavity 1 is a larger semicircle or near-circle, and the other part is a smaller semicircle or near-circle. These two parts together form a complete sector-shaped cavity with an irregular shape. Although strictly speaking this should be called an irregularly shaped cavity, for the sake of consistency in technical features, it is still referred to as sector-shaped cavity 1.

[0110] Because part of the cross-section S is a large semi-circle or near-circular shape, the piston can compress and expand a larger space during its movement, directly increasing the effective volume of the piston chamber 4. The irregular cross-section S design allows the airflow channel to expand in a specific area, reducing airflow resistance and turbulence, and improving airflow efficiency.

[0111] The larger piston chamber volume allows for stronger negative and positive pressure with each piston reciprocating motion, enhancing the inhalation and exhalation effects and improving the massager's performance.

[0112] On the other hand, if the cross-section S of the sector-shaped cavity 1 is one of the aforementioned circular, rectangular, or elliptical shapes, to increase the effective volume of the piston cavity 4, one approach is to increase the lateral dimension of the sector-shaped cavity 1, and another is to increase the lateral displacement stroke of the connecting arm 7 (the component connected to the piston body 201 or the sector-shaped cavity 1, which transmits the rotational kinetic energy provided by the motor to the piston body 201 or the sector-shaped cavity 1 to form a sector-shaped reciprocating motion). However, either approach will occupy lateral space, thus increasing the lateral dimension. Based on this, by adopting a structure with an irregular cross-section S, the volume of the piston cavity 4 can be increased without significantly increasing the lateral dimension.

[0113] As shown in Figures 5 and 16, the second embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, and based on the first embodiment, the piston body 201 has a C-shaped annular groove 5 and an O-shaped piston ring 6 arranged along the outer periphery;

[0114] The inner diameter r1 of the O-ring 6 and the bottom diameter r2 of the C-ring groove 5 satisfy the following condition: 1.5mm ≤ r1 - r2 ≤ 4mm.

[0115] In this embodiment, the airtightness between the piston body 201 and the sector cavity 1 in the sector-shaped reciprocating blow-suction device is crucial to the performance of the device. Good airtightness ensures that the gas in the piston cavity 4 does not leak during compression and expansion, thereby generating stable and effective suction and blowing force.

[0116] Among them, the C-shaped annular groove 5 refers to the fact that its cross-section is C-shaped.

[0117] However, when the piston body 201 is in close contact with the inner wall of the sector cavity 1, significant frictional resistance (damping) is generated. This leads to the following problems:

[0118] Increased energy consumption: The drive component 12 needs to overcome greater resistance, resulting in increased energy consumption.

[0119] Increased noise: Increased frictional resistance will cause greater mechanical noise, affecting the user experience.

[0120] Stagnation: Excessive resistance may cause the fan-shaped reciprocating motion to become obstructed, resulting in jamming or a decrease in speed.

[0121] To resolve the aforementioned contradictions, this embodiment achieves a balance between damping and airtightness through the following methods:

[0122] The C-shaped ring groove 5 is located on the outer periphery of the piston body 201 to accommodate the O-ring piston 6. The O-ring piston 6 is usually made of an elastic material (such as rubber or elastomer), which has a certain degree of flexibility and elasticity and can deform within a certain range.

[0123] The difference between the inner diameter r1 of the O-ring 6 and the bottom diameter r2 of the C-ring groove 5 is specified to satisfy:

[0124] 1.5mm≤r1-r2≤4mm.

[0125] The reason is that by controlling the difference between r1 and r2, a certain amount of floating space is ensured for the O-ring 6 within the C-ring groove 5. This allows the O-ring 6 to move or deform slightly and freely within the C-ring groove 5.

[0126] When the piston body 201 performs a fan-shaped reciprocating motion, the O-ring 6 can automatically adjust its position and shape within the floating gap to adapt to the minute changes in the inner wall of the fan-shaped cavity 1.

[0127] Furthermore, due to the floating clearance, the contact pressure between the O-ring piston 6 and the inner wall of the sector cavity 1 is appropriately reduced, thereby reducing frictional resistance (damping).

[0128] Despite the reduced contact pressure, the O-ring 6, due to its elasticity and deformation capability, can still effectively fill the tiny gap between the piston body 201 and the inner wall of the sector cavity 1, ensuring airtightness.

[0129] This embodiment solves the balance problem between damping and airtightness by setting a C-shaped annular groove 5 on the piston body 201 and installing an O-shaped piston ring 6 that meets specific dimensional relationships. This design not only ensures good airtightness between the piston body 201 and the sector cavity 1, but also effectively reduces frictional resistance, noise and energy consumption, and improves the operating efficiency and service life of the device.

[0130] The third embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, which, based on the previous embodiment, includes:

[0131] Connecting arm 7;

[0132] Fixed connection part 8;

[0133] Shaft connection part 9;

[0134] Wherein, the fixed connecting part 8 is connected to the sector-shaped cavity 1 and is used to fix the sector-shaped cavity 1; the shaft connecting part 9 is disposed on the connecting arm 7, so that the piston body 201 can perform the sector-shaped reciprocating motion around the shaft connecting part 9; and the connecting arm 7 and the piston body 201 are connected; or,

[0135] The fixed connecting part 8 is connected to the piston body 201 and is used to fix the piston body 201. The shaft connecting part 9 is disposed on the connecting arm 7 so that the sector cavity 1 can perform the sector reciprocating motion around the shaft connecting part 9, and the connecting arm 7 is connected to the sector cavity 1.

[0136] In this embodiment, depending on the configuration, the fixed connection part 8 can be disposed on the sector-shaped cavity 1, that is, the sector-shaped cavity 1 remains stationary while the piston body 201 remains in motion to form a sector-shaped reciprocating motion. The fixed connection part 8 can also be disposed on the piston body 201 or the airflow guide 3, that is, the piston body 201 remains stationary while the sector-shaped cavity 1 remains in motion to form a sector-shaped reciprocating motion. The main function of the fixed connection part 8 is to ensure the stable fixation of the sector-shaped cavity 1 or the piston body 201 in the device, preventing unnecessary shaking or displacement during the reciprocating motion.

[0137] The fixed connection part 8 is made of a strong and durable material, such as metal or high-strength plastic, to ensure its reliability and durability in long-term use.

[0138] The shaft connection part 9 is provided on the connecting arm 7, enabling the piston body 201 or the sector cavity 1 to perform sector-shaped reciprocating motion around the shaft connection part 9. This design makes the sector-shaped reciprocating motion smoother and more precise, while reducing friction and energy loss during the motion process.

[0139] In one specific embodiment, the fixed connection part 8 is specifically a fixed shaft connection, such as a screw connection.

[0140] In one specific embodiment, the shaft connection portion 9 includes a connecting seat 901, and the connecting arm 7 is connected to the connecting seat 901. One end of the connecting seat 901 is hinged, for example, a rotating shaft connection.

[0141] In one specific embodiment, the connecting arm 7 has an arc-shaped structure. One end is connected to the shaft connecting part 9, and the other end is connected to the fan-shaped cavity 1 or the piston body 201.

[0142] As shown in Figure 14, the fourth embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, and based on the previous embodiment, the piston body 201 has a C-shaped groove 10 on a partial outer periphery;

[0143] A floating sealing body 11 is provided inside the C-shaped groove 10;

[0144] The floating degree of freedom of the floating seal 11 is located within the plane of the piston body 201.

[0145] In this embodiment, the sealing structure design of the fan-shaped reciprocating blowing and suction device is further optimized to improve the balance between airtightness and motion efficiency during operation, especially when the cross-section S of the fan-shaped cavity 1 perpendicular to the arc axis L is irregular. By designing a C-shaped groove 10 on the outer periphery of the piston body 201 and setting a floating seal 11 in the groove, a stable sealing effect is ensured during the fan-shaped reciprocating motion, while reducing motion resistance. The following is a detailed analysis of this embodiment:

[0146] The C-groove 10 is located on a localized outer periphery of the piston body 201, especially when the cross-section S of the sector cavity 1 perpendicular to the arc axis L is irregular. The C-groove 10 can be provided on the outer periphery of a larger portion of the sector cavity 1. The floating seal 11 is installed within the C-groove 10. It is a sealing element with a floating degree of freedom, capable of limited displacement within the plane of the piston body 201. Due to its floating characteristics, the floating seal 11 can automatically adjust its position according to the pressure and friction during movement, ensuring a proper seal between the piston body 201 and the sector cavity 1.

[0147] The floating seal 11 has its floating degree of freedom limited to the plane of the piston body 201, which means that the seal can be slightly adjusted within the horizontal plane of the piston. This design ensures that the seal can effectively compensate for minor deviations caused by fan-shaped reciprocating motion or structural inhomogeneity during movement, thereby maintaining good sealing performance.

[0148] Because the floating seal 11 can float in a plane, it can automatically adjust its position and pressure according to the pressure difference and friction during movement, making the sealing effect more flexible and adaptive. This design can effectively prevent gas leakage while avoiding excessive frictional resistance.

[0149] In summary, by incorporating a floating seal 11 within the C-groove 10, the sealing element gains a certain degree of freedom of movement, thus maintaining airtightness while reducing excessive friction between the sealing element and the cavity. This design effectively resolves the conflict between airtightness and resistance, resulting in smoother piston movement and reduced energy loss and noise.

[0150] Because the floating seal 11 can automatically adjust its position according to pressure and friction, it reduces localized excessive friction, evenly distributes the stress on the seal, and extends the service life of the seal. This adaptive sealing structure improves the reliability of the device and reduces maintenance costs.

[0151] The fourth embodiment of the present invention successfully resolves the contradiction between airtightness and frictional resistance by designing a C-shaped groove 10 on the outer periphery of the piston body 201 and setting a floating seal 11 within the groove. The adaptive design of the floating seal 11 significantly reduces motion resistance and extends the service life of the device while maintaining good airtightness. This innovative design provides a more efficient solution for the sealing structure of the fan-shaped reciprocating blow-suction device and has broad application prospects.

[0152] In one specific embodiment, the floating seal 11 is a rubber ring. Its diameter is slightly smaller than the diameter of the C-groove 10, thereby giving the floating seal 11 a degree of freedom to float.

[0153] The fifth embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, which, based on the previous embodiment, includes:

[0154] A drive assembly 12 having a drive element 1201 and a drive connection part 1202;

[0155] The driving component 1201 is connected to the driving connection part 1202;

[0156] The drive connection part 1202 and the shaft connection part 9 are eccentrically connected.

[0157] In this embodiment, the drive system design of the fan-shaped reciprocating blowing and suction device is further optimized. By introducing the drive assembly 12, the system includes a drive component 1201, a drive connection part 1202, and a shaft connection part 9, and converts the rotational motion into the fan-shaped reciprocating motion of the fan-shaped cavity 1 or the piston body 201 through an eccentric connection.

[0158] The drive unit 1201 is the power source of the entire device, usually an electric motor, which provides stable rotational motion and drives the operation of the fan-shaped reciprocating blowing and suction device.

[0159] The design of the drive unit 1201 needs to ensure sufficient power output while maintaining low noise and vibration to adapt to different working environments, especially in portable devices or personal care devices, where miniaturization and lightweighting are required.

[0160] The drive connection part 1202 is used to connect the drive component 1201 and the shaft connection part 9, and is an important component for transmitting power. Its main task is to transmit the power generated by the drive component 1201 to the piston body 201 or the sector cavity 1, thereby realizing the reciprocating motion of the entire device.

[0161] By eccentrically connecting the drive connection 1202 to the shaft connection 9, the rotational motion of the drive component 1201, such as the motor, can be converted into a fan-shaped reciprocating motion of the piston body 201 or the fan-shaped cavity 1. This motion can more effectively drive the airflow in the piston cavity 4, providing a stable intake and exhaust effect.

[0162] The eccentric connection design helps to achieve smoother motion transitions, reduces impact and noise during motion, and improves the stability of the device's operation.

[0163] Through eccentric drive, the rotational motion of the motor can be directly converted into the fan-shaped oscillation of the piston body 201 or the fan-shaped cavity 1. This method simplifies the structural design while ensuring efficient power transmission.

[0164] In one specific embodiment, the drive connection part 1202 includes an eccentric disk 12021 and an eccentric rod 12022. The eccentric rod 12022 is eccentrically disposed on the eccentric disk 12021, and the eccentric disk 12021 is connected to the drive end of the motor. The shaft connection part 9 includes a connecting seat 901, and the connecting arm 7 is connected to the connecting seat 901. One end of the connecting seat 901 forms a mounting groove 902 for the movement of the eccentric rod 12022, and the other end is hinged.

[0165] In another specific embodiment, since the function of the shaft connecting part 9 is to ensure the fan-shaped swing of the connecting arm 7, it can also be located at the end of the connecting arm 7 (the end away from the piston body 201), specifically in the form of a hinge shaft. Furthermore, the location of the shaft connecting part 9 is not specifically limited; for example, as mentioned above, it can be located at the end of the connecting arm 7, or in the middle of the connecting arm 7, as long as it ensures the fan-shaped swing of the connecting arm 7.

[0166] As shown in Figures 9 to 13, the sixth embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, which, based on the previous embodiment, includes a first sealing member 13;

[0167] The first sealing element 13 is connected between the fan-shaped cavity 1 and the blow-in nozzle 302 to seal and surround the airflow guide tube 303.

[0168] In this embodiment, optimizations were made in both airflow sealing and waterproof protection. By introducing the first sealing element 13, the problems of airflow leakage and waterproofing were effectively solved.

[0169] This embodiment ensures the airtightness of the airflow channel by providing a first seal 13 between the fan-shaped cavity 1 and the blow-suction nozzle 302. Regardless of the movement of the piston body 201, the first seal 13 can provide a stable seal, preventing gas leakage from the interface.

[0170] Because airflow leakage is effectively controlled, the effects of airflow intake and exhaust are more stable, improving the performance of the device and enabling it to maintain high suction and blowing power under different working conditions.

[0171] The first seal 13 is made of a highly elastic material, which can adjust the sealing strength according to the internal pressure during equipment operation to prevent leakage caused by any movement, thereby ensuring the smooth flow of air.

[0172] The first seal 13 not only solves the problem of airflow leakage, but also has a waterproof function. By selecting highly elastic and water-resistant materials, it prevents liquid from seeping into the equipment and protects the electrical and mechanical components of the equipment from moisture damage.

[0173] Waterproof seals prevent internal corrosion or electrical short circuits, extending the equipment's lifespan and improving its safety in humid environments.

[0174] In summary, the design of this embodiment takes into account both the need to prevent airflow leakage and waterproofing. Through an efficient sealing structure, it ensures the airflow control effect of the equipment and its durability in different environments, thereby improving the stability, reliability and safety of the equipment.

[0175] In one specific embodiment, the first seal 13 has a degree of freedom of extension and retraction along the arcuate axis L;

[0176] The degree of freedom of extension is configured to allow the first seal 13 to compress along the arc axis L and to allow the first seal 13 to stretch along the arc axis L.

[0177] In this embodiment, the first seal 13 has a degree of freedom to extend and retract along the arc axis L, which aims to achieve a more flexible sealing effect during the movement of the device. This design not only further optimizes the airtightness of the device but also enhances the adaptability of the seal in dynamic working environments. When the working state of the device changes (such as the reciprocating motion of the piston body 201 or the sector cavity 1), the first seal 13 can undergo compressive and tensile deformation in the direction of the arc axis L, thereby adapting to the displacement changes during the movement and ensuring that the sealing performance is not affected.

[0178] Through its design with degrees of freedom of extension and retraction, the first seal 13 can automatically adjust its length and shape when the sector cavity 1 moves, adapting to different working conditions. This allows the seal to maintain more stable sealing performance in dynamic working environments.

[0179] In one specific embodiment, the first sealing element 13 is a corrugated elastic tube, with its two ends respectively sleeved on the blow-in nozzle 302 and the fan-shaped cavity 2.

[0180] As shown in Figure 15, the seventh embodiment of the present invention proposes a fan-shaped reciprocating blowing and suction device, and based on the previous embodiment, includes a second sealing member 14;

[0181] Specifically, the second sealing member 14 is disposed between the driving member 1201 and the driving connection portion 1202.

[0182] In this embodiment, the waterproof sealing performance of the fan-shaped reciprocating blowing and suction device is further improved, especially for the protection of the drive component 1201. By providing a second seal 14 between the drive component 1201 and the drive connection portion 1202, waterproof protection of the drive component 1201 is achieved, preventing moisture from entering the drive component 1201 and extending the service life of the equipment.

[0183] The drive unit 1201, serving as the power source for the fan-shaped reciprocating blow-suction device, typically includes electrical components such as a motor. These components are highly sensitive to liquids or moisture; moisture ingress can lead to short circuits, component damage, or performance degradation. The second seal 14 protects the drive unit 1201 by providing a seal, ensuring stable operation of the equipment in environments with high humidity or direct contact with water.

[0184] In one specific embodiment, the second seal 14 is an elastic sealing gasket.

[0185] As shown in Figure 15, the ninth embodiment of the present invention provides a massage device, comprising:

[0186] Casing 15;

[0187] The fan-shaped reciprocating blowing and suction device as described in any of the above embodiments is disposed inside the housing 15.

[0188] This massage device utilizes the unique structure and function of a fan-shaped reciprocating suction device to provide a stable and comfortable massage experience. The housing 15 protects the internal fan-shaped reciprocating suction device from external environmental influences such as impacts, dust, and moisture. Furthermore, the housing 15 provides necessary support for the fan-shaped reciprocating suction device, ensuring its stable operation within the device.

[0189] The housing 15 needs to possess a certain level of strength and durability, and the material can be plastic, metal, or other impact-resistant composite materials. A silicone sleeve is also installed on the outer layer of the housing 15 to improve comfort. Furthermore, the design of the housing 15 needs to consider ergonomics, ensuring that the user can comfortably hold and operate the massage device.

[0190] The fan-shaped reciprocating suction device, through the reciprocating motion of its arc-shaped axis L, combined with the inhalation and exhalation of airflow, can simulate the effects of sucking and massaging. This airflow-driven massage method can provide gentle or strong suction to help users achieve specific massage needs.

[0191] Specifically, the suction nozzle 302 or suction port 301 is disposed through the surface of the housing 15 to contact the massage area, such as the vagina, clitoris, or nipple.

[0192] In the description of the embodiments of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0193] In the description of embodiments of the present invention, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0194] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0195] In the description of embodiments of the present invention, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0196] In the description of the embodiments of the present invention, it should be understood that "-" and "~" represent a range between two values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0197] In the description of embodiments of the present invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0198] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan-shaped reciprocating blowing and suction device, characterized in that, include: A fan-shaped cavity with an arc-shaped axis L; Piston assembly with piston body; Blow / suck mouth; The piston body matches the inner cavity of the sector-shaped cavity and together they form a piston cavity; The blowing and suction port is connected to the piston chamber and is configured to contact the skin of the area to be massaged, and a pressure change field of positive and negative pressure is alternately applied to the skin of the area to be massaged through the blowing and suction port; The sector-shaped cavity and the piston body have relative sector-shaped reciprocating motion; and the sector-shaped motion trajectory of the sector-shaped reciprocating motion is the same as that of the arc axis L.

2. The fan-shaped reciprocating blowing and suction device according to claim 1, characterized in that, include: The cross-section S of the fan-shaped cavity perpendicular to the arc axis L is one of a circle, a rectangle, or an ellipse.

3. The fan-shaped reciprocating blowing and suction device according to claim 2, characterized in that, The major axis of the cross section S is parallel to the plane of the sector-shaped motion trajectory.

4. The fan-shaped reciprocating blowing and suction device according to claim 1, characterized in that, The blow-in / suction port is either the opening of the fan-shaped cavity or an independent component connected to the fan-shaped cavity.

5. The fan-shaped reciprocating blowing and suction device according to claim 1, characterized in that, The blow-in / suction port is either an opening in the piston body or a separate component connected to the piston body.

6. The fan-shaped reciprocating blowing and suction device according to claim 1, characterized in that, The piston body has a C-shaped annular groove and an O-shaped piston ring arranged along its outer periphery; The inner diameter r1 of the O-ring piston ring and the bottom diameter r2 of the C-ring groove satisfy the following condition: 1.5mm ≤ r1 - r2 ≤ 4mm.

7. The fan-shaped reciprocating blowing and suction device according to any one of claims 1 to 6, characterized in that, Also includes: Connecting arm; Fixed connection part; Shaft connection part; Wherein, the fixed connecting part is connected to the sector-shaped cavity to fix the sector-shaped cavity, the shaft connecting part is disposed on the connecting arm so that the piston body can perform the sector-shaped reciprocating motion around the shaft connecting part, and the connecting arm and the piston body are connected; or, The fixed connection part is connected to the piston body to fix the piston body. The shaft connection part is disposed on the connecting arm so that the sector-shaped cavity can perform the sector-shaped reciprocating motion around the shaft connection part, and the connecting arm and the sector-shaped cavity are connected.

8. The fan-shaped reciprocating blowing and suction device according to claim 1 or 2, characterized in that, A local area on the outer periphery of the piston body has a C-shaped groove; A floating sealing body is provided inside the C-shaped groove; The floating degree of freedom of the floating seal body lies within the plane of the piston body.

9. The fan-shaped reciprocating blowing and suction device according to claim 7, characterized in that, include: A drive assembly having a drive element and a drive connection part; The driving component is connected to the driving connection part; The drive connection part and the shaft connection part form an eccentric connection.

10. The fan-shaped reciprocating blowing and suction device according to claim 5, characterized in that, Including the first seal; The first sealing element is connected between the fan-shaped cavity and the blow-in / suck-out port.

11. The fan-shaped reciprocating blowing and suction device according to claim 10, characterized in that, The first seal has a degree of freedom of extension and retraction along the arcuate axis L; The degree of freedom of extension is configured to allow the first seal to compress along the arcuate axis L and to stretch along the arcuate axis L.

12. The fan-shaped reciprocating blowing and suction device according to claim 9, characterized in that, Including a second seal; The second seal is disposed between the drive member and the drive connection portion.

13. A massage device, characterized in that, include: case; The fan-shaped reciprocating blowing and suction device as described in any one of claims 1 to 12 is disposed inside the housing.

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