Blood circulation promoting device

Abstract

The utility model relates to a blood circulation promoting device, include: casing, be equipped with the air port of opening outward, power source, set up in the inside of casing, drive mechanism, set up in the casing and with power source electricity is connected, cylinder subassembly, set up in the casing and form with the air cavity that communicates in air port, waterproof partition structure, set up in the casing, pressure sensor, set up on the casing far from the end where air port is located, control unit with drive mechanism, pressure sensor, power source electricity is connected, drive mechanism transmission connection in cylinder subassembly, power source and drive mechanism in the inside of casing through waterproof partition structure with air port and the air cavity of cylinder subassembly mutual waterproof partition structure. The utility model can guarantee effective generation alternate positive and negative pressure, promote the moistureproof waterproof performance in the inside of device, improve the overall health level of device, and then improve the reliability and service life of device.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary device technology, and in particular to a blood circulation promoting device. Background Technology

[0002] Local circulatory disorders are a common complication of many diseases and injuries, and effective local blood circulation is crucial for tissue health and functional recovery. In physical therapy, applying periodic alternating positive and negative pressure (suction) to local tissues has been proven to effectively improve microcirculation, promote lymphatic drainage, reduce edema and pain, and aid in tissue repair.

[0003] In the field of physical therapy, applying periodic pressure changes to local tissues using external mechanical force, particularly alternating positive and negative pressure (suction), has proven to be an effective method for promoting blood and lymphatic return, reducing edema, and accelerating tissue repair. This non-invasive physical stimulation can improve local microcirculation through mechanical action and is commonly used in various scenarios such as sports rehabilitation, postoperative care, relieving muscle fatigue, and assisting in reducing swelling.

[0004] To achieve the aforementioned physical therapy, various medical local pressure therapy devices have been developed in the prior art. These devices typically include a power unit (such as a motor or air pump), a mechanism that converts power into gas pressure changes (positive or negative pressure) (such as a piston / cylinder, diaphragm pump, etc.), and one or more interfaces (such as nozzles, flexible covers, or airbags) for contacting and applying pressure to the local skin surface. When the device is in operation, it alternately applies air pressure greater than or less than ambient pressure to the local area through the interfaces, achieving pushing and traction effects on the tissue. However, some existing local pressure therapy devices, especially at the interface sites that directly or indirectly contact the human skin, inevitably come into contact with bodily fluids (such as sweat, sebum, and even wound exudate) or moisture from the external environment (such as disinfectants, water vapor, and cleaning water) during use. These liquids or moisture may gradually seep into the internal space of the device through gaps in the interface connections, sliding fits between moving parts, or minor defects in the device's outer shell.

[0005] Once liquid enters the device, it poses a serious threat to critical internal components, especially electrical and precision mechanical parts such as motors, gear transmission mechanisms, electronic control circuit boards, and batteries. Furthermore, the humid internal environment easily breeds bacteria and other microorganisms, leading to hygiene hazards and the risk of cross-infection. Effective cleaning of the device's interior is also typically difficult. Existing attempts to address this issue by increasing the enclosure's protection level or using partial sealing often result in complex structures that cannot completely and reliably prevent liquid penetration and are detrimental to internal hygiene. Utility Model Content

[0006] In order to solve the problems existing in the prior art as much as possible, this utility model provides a blood circulation promoting device, which aims to ensure the effective generation of alternating positive and negative pressure while improving the internal moisture-proof and waterproof performance of the device, improving the overall hygiene level of the device, and thus improving the reliability and service life of the device.

[0007] This utility model discloses a blood circulation promoting device, comprising a housing that serves as the overall shape and protective structure of the device, with an externally open air port. This air port is the interface for gas communication between the device and the external environment, especially with local tissues of the human body, and is the direct output port for pressure action. Inside the housing, the device's energy supply unit, i.e., the power source, is integrated. The power source typically provides electrical energy, which is the energy basis for driving the internal working components of the device. Also located inside the housing is a drive mechanism. The drive mechanism is electrically connected to the power source, receives electrical energy from the power source, and converts the electrical energy into mechanical motion or magnetic force, thereby providing power for generating pressure changes. This drive mechanism can be a motor and its associated motion conversion mechanism (such as a crank-connecting rod, screw drive, etc.), or an electromagnetic drive unit that directly generates reciprocating motion. The device also contains a cylinder assembly. The cylinder assembly is the actuator responsible for generating pressure changes. This assembly forms a specific volume space, i.e., an air chamber. The air chamber is connected to the external environment through the air port on the housing. Changes in the volume of the air chamber are the direct cause of positive and negative pressure. Furthermore, the key feature of this invention lies in the introduction of a waterproof partition structure, which is also located inside the housing. Functionally, the drive mechanism is connected to the cylinder assembly. This means that the power generated by the drive mechanism is transmitted to the movable parts of the cylinder assembly, driving them to reciprocate. The reciprocating motion of the movable parts of the cylinder assembly (such as pistons, push cylinders, etc.) directly causes the volume of the air chamber to alternately increase and decrease. When the volume of the air chamber decreases, the internal air is compressed and discharged outward through the air port, generating positive pressure; when the volume of the air chamber increases, external air is drawn in, generating negative pressure (suction) through the air port. Thus, the device can continuously and alternately provide positive and negative pressure to the external environment and, during use, to local tissues of the human body through the air port, achieving a physical stimulation function. The core structural feature lies in the layout and function of the waterproof partition structure. The power source and the drive mechanism are located inside the housing, and through the waterproof partition structure, they are mutually waterproofed and separated from the air port and the air chamber area of ​​the cylinder assembly. This means that inside the housing, a waterproof structure forms a physical barrier, separating the area containing the air vents and air chambers (the "wet zone"), which are directly exposed to outside air and may come into contact with moisture, from the area inside the device containing the power source and drive mechanism (the "dry zone"). Even if bodily fluids or external moisture come into contact with the air vents or air chambers during operation, these liquids are unlikely to cross the barrier of the waterproof structure, thus protecting the moisture-sensitive electrical and mechanical components located in the "dry zone." Furthermore, the blood circulation promoting device also includes a pressure sensor and a control unit. The pressure sensor is located on the housing at the end away from the air vents, and the control unit is electrically connected to the drive mechanism, pressure sensor, and power source. The pressure sensor is used to detect pressure values, such as the gripping pressure applied by the user when holding the housing.The pressure sensor transmits the pressure signal it senses to the device's control unit (usually a microcontroller or processor). The control unit can use these signals to infer the user's comfort level, usage intensity preferences, or as input to trigger specific operations (such as start / stop, mode adjustment).

[0008] Furthermore, the cylinder assembly includes a fixed component and a movable component, the movable component reciprocating relative to the fixed component, and the air chamber being defined by the fixed component and the movable component.

[0009] The above scheme refines the structure of the cylinder assembly, explicitly stating that it consists of two relatively moving parts: a fixed part and a movable part. The interconnected internal cavities of these two parts together form an air chamber. The reciprocating motion of the movable part relative to the fixed part changes the internal volume of the air chamber. For example, in a classic piston-cylinder structure, the cylinder wall is the fixed part, and the piston is the movable part; as the piston moves within the cylinder, the volume of the space between the piston and the cylinder bottom or top cover (i.e., the air chamber) changes. This relative motion of the two parts forming a variable-volume air chamber is one of the fundamental principles for achieving pumping function (in this case, generating positive and negative pressure).

[0010] Furthermore, the fixed component is configured as a fixed sleeve, and the movable component is configured as a movable push cylinder. The fixed sleeve is fixed inside the housing, and the movable push cylinder is slidably sleeved on the outside of the fixed sleeve and reciprocates along its axial direction.

[0011] or,

[0012] The fixed component is a fixed piston cylinder, and the movable component is a moving piston cylinder. The fixed piston cylinder is fixed inside the housing, and the moving piston cylinder is slidably sleeved inside the fixed piston cylinder and moves back and forth along its axial direction.

[0013] The above solution provides two specific structural implementations of the fixed and movable parts of the cylinder assembly. One implementation is as follows: the fixed part is a fixed sleeve, and the movable part is a movable push cylinder. The fixed sleeve is fixed inside the housing, and the movable push cylinder slides around the outside of the fixed sleeve and reciprocates along its axial direction. The other implementation is as follows: the fixed part is a fixed piston cylinder, and the movable part is a moving piston cylinder. The fixed piston cylinder is fixed inside the housing, and the moving piston cylinder slides around the inside of the fixed piston cylinder and reciprocates along its axial direction. It can be understood that this solution provides two specific configurations for the relative movement of the movable and fixed parts of the cylinder assembly. In the first configuration, the fixed sleeve is stationary, and the movable push cylinder, like a "cup" or "cover," is fitted around the outside of the fixed sleeve and slides up and down along its axial direction. The air chamber is located in the top region of the fixed sleeve and is open to the outside through an air port. When the movable push cylinder moves upward, the space it "fits" into the fixed sleeve increases, compressing the air in the air chamber, reducing its volume, and generating positive pressure. When the movable piston cylinder moves downwards, the space it "fits" into the fixed sleeve decreases, increasing the air chamber volume and generating negative pressure. This "outer sliding sleeve" design allows for a larger air chamber volume change stroke. The second configuration: The fixed piston cylinder is stationary, and the movable piston cylinder is a "piston" that can slide inside the fixed piston cylinder. The air chamber is located at the top of the fixed piston cylinder (communicating with the air port) and is defined by the inner wall of the fixed piston cylinder and the top surface of the movable piston cylinder. When the movable piston cylinder moves upwards, its top approaches the top of the fixed piston cylinder, decreasing the air chamber volume and generating positive pressure. When the movable piston cylinder moves downwards, its top moves away from the top of the fixed piston cylinder, increasing the air chamber volume and generating negative pressure. This is a more classic piston-cylinder structure that also effectively achieves air chamber volume variation.

[0014] Furthermore, the waterproof partition structure includes a corrugated pipe and a movable push plate, the movable push plate being coupled to a movable part of the cylinder assembly, the corrugated pipe being fixed inside the housing, and the other end being passively connected to the movable push plate;

[0015] or,

[0016] The waterproof separation structure includes a flexible partition and a sealing collar. The power source and the drive mechanism are waterproofly separated from the air port and the air chamber of the cylinder assembly inside the outer shell by the flexible partition. The flexible partition has a sleeve hole for the transmission component of the drive mechanism to pass through. The sealing collar is disposed in the sleeve hole and is sealed to the transmission component of the drive mechanism.

[0017] In the above scheme, the waterproof separation structure can be implemented in two ways: The first way: The waterproof separation structure includes a bellows and a movable push plate. The movable push plate is coupled to the movable part of the cylinder assembly. The bellows is fixed inside the housing, and its other end is passively connected to the movable push plate. The second way: The waterproof separation structure includes a flexible partition and a sealing collar. The power source and the drive mechanism are waterproofly separated from the air port and the air chamber of the cylinder assembly inside the housing by the flexible partition. The flexible partition has a sleeve hole for the transmission component of the drive mechanism to pass through. The sealing collar is disposed in the sleeve hole and seals with the transmission component of the drive mechanism.

[0018] It is understood that the above solution is one of the key technical features of this utility model, providing two effective structures for waterproof separation between the drive mechanism area and the air chamber area. The first method uses a bellows and a movable push plate. The movable push plate connects the movable parts of the cylinder assembly (such as a movable push cylinder or moving piston cylinder) to the drive mechanism (via a connecting rod, nut, or power output unit). The bellows is a retractable, flexible tubular structure, with one end fixed to a fixed part of the housing or cylinder assembly (e.g., below the air chamber support cylinder), and the other end sealed to the edge of the movable push plate. Thus, the bellows forms a sealed cavity that can fold / unfold as the movable push plate moves up and down, separating the drive mechanism area below the movable push plate from the air chamber area above it. Even if there is moisture in the air chamber area, it cannot penetrate to the area below through the bellows. The second method uses a flexible partition and a sealing ring. The flexible partition is a flexible material (such as rubber or silicone) spanning the transverse space inside the housing, fixed inside the housing, completely separating the upper air chamber area from the lower drive mechanism area. Because the drive mechanism needs to move the movable parts of the cylinder assembly, its transmission components (such as connecting rods) must pass through this partition. The flexible partition has a sleeve hole where the transmission component passes through, and a sealing ring is installed at the sleeve hole. The sealing ring fits tightly with the passing transmission component (e.g., through an elastic sealing lip or its own corrugated structure). When the transmission component reciprocates, the sealing ring can deform slightly accordingly and always maintain a sealed connection with the transmission component and the edge of the flexible partition, ensuring that moisture does not leak down the transmission component.

[0019] Furthermore, the drive mechanism includes a motor and a transmission component. The transmission component includes a crank and a connecting rod. The crank is rotatably connected to the output shaft of the motor. One end of the connecting rod is connected to the crank, and the other end is connected to the movable part of the cylinder assembly.

[0020] or,

[0021] The drive mechanism includes a motor and a transmission component. The transmission component includes a screw rod and a nut. The screw rod is connected to the output shaft of the motor via a gear. The nut meshes with the screw rod and is connected to the movable part of the cylinder assembly.

[0022] or,

[0023] The driving mechanism is a magnetic driving mechanism, which includes a magnetic block and an electromagnetic coil. The magnetic block is disposed on the movable part of the cylinder assembly and is separated from the electromagnetic coil by the waterproof separation structure. The electromagnetic coil is magnetically coupled to the magnetic block to drive the magnetic block and the movable part of the cylinder assembly to reciprocate through electromagnetic force.

[0024] or,

[0025] The driving mechanism is a magnetic drive mechanism, which includes a motor, a rotating magnet controlled by the motor to rotate, and a magnetic block magnetically coupled to the rotating magnet. The magnetic block is disposed on the movable part of the cylinder assembly and is separated from the electromagnetic coil by the waterproof separation structure. The alternating magnetic field generated by the rotation of the rotating magnet acts on the magnetic block and drives the movable part of the cylinder assembly to reciprocate.

[0026] The above scheme specifically illustrates four possible implementation methods for the drive mechanism: The first method includes a motor and a transmission component. The transmission component includes a crank and a connecting rod. The crank is rotatably connected to the output shaft of the motor. One end of the connecting rod is connected to the crank, and the other end is connected to the movable part of the cylinder assembly. The second method includes a motor and a transmission component. The transmission component includes a helical rod and a nut. The helical rod is driven by a gear to the output shaft of the motor. The nut meshes with the helical rod and is connected to the movable part of the cylinder assembly. The third method is a magnetic drive mechanism. The magnetic drive mechanism includes a magnetic block and an electromagnetic coil. The magnetic block is disposed on the movable part of the cylinder assembly and separated from the electromagnetic coil by the waterproof separation structure. The electromagnetic coil is magnetically coupled to the magnetic block to drive the magnetic block and, consequently, the movable part of the cylinder assembly to reciprocate through electromagnetic force. The fourth method: The driving mechanism is a magnetic drive mechanism, which includes a motor, a rotating magnet controlled by the motor, and a magnetic block magnetically coupled to the rotating magnet. The magnetic block is disposed on the movable part of the cylinder assembly and separated from the electromagnetic coil by the waterproof partition structure. The alternating magnetic field generated by the rotation of the rotating magnet acts on the magnetic block and drives the movable part of the cylinder assembly to reciprocate. It can be understood that this solution provides multiple technical solutions for driving the reciprocating motion of the movable part of the cylinder assembly. The first solution is the classic mechanical crank-connecting rod mechanism. The rotational motion of the motor is converted into circular motion by the crank, and the connecting rod converts the circular motion into the reciprocating linear motion of the movable part. This is a mature, reliable, and relatively low-cost transmission method. The second solution is a mechanical screw-nut mechanism. The motor drives the screw to rotate through gears (used to change the direction of the transmission axis, such as bevel gears). The nut fitted on the screw is guided and can only move along the axial direction of the screw, thus achieving reciprocating linear motion. This type of mechanism can provide significant thrust, and by controlling the motor's speed and direction of rotation, the speed, stroke, and even the pause position of the reciprocating motion can be precisely controlled. The third and fourth options are magnetic drive mechanisms. Unlike mechanical transmission, magnetic drive uses magnetic force across a waterproof partition to drive the movable parts of the cylinder assembly. The third type of magnetic drive uses an electromagnetic coil to generate a magnetic field. Magnetic blocks are mounted on the movable parts of the cylinder assembly. By controlling the on / off state of the electromagnetic coil or the direction of the current, a periodically changing magnetic field is generated. This magnetic field interacts with the magnetic blocks to produce attractive or repulsive forces, driving the movable parts to reciprocate. For example, energizing the coil generates a magnetic field that repels the magnetic blocks, pushing the movable parts upwards; de-energizing the coil causes the movable parts to move downwards under the restoring force provided by a spring or permanent magnet. This method allows for rapid response and flexible control. The fourth type of magnetic drive uses a motor to drive a rotating magnet. The rotating magnet is mounted on the motor's output shaft.When the rotating magnet rotates, the magnetic force between it and the magnetic block on the movable part of the cylinder assembly changes periodically, generating an alternating magnetic force that acts on the magnetic block, driving its reciprocating motion. This method converts continuous rotational motion into reciprocating motion, thus achieving non-contact actuation.

[0027] Furthermore, the magnetic drive mechanism also includes a bevel gear set, a reduction gearbox, and a permalloy plate turntable. The permalloy plate turntable is disposed between the rotating magnet and the magnetic block. The bevel gear set is connected to the output shaft of the motor and drives the power input end of the reduction gearbox. The power output end of the reduction gearbox drives the permalloy plate turntable to rotate. The permalloy plate turntable has several permalloy plates of different thicknesses distributed circumferentially, and there are hollow areas between the permalloy plates of different thicknesses.

[0028] The above scheme is a further optimization of the fourth magnetic drive method mentioned earlier. A mechanism for finely adjusting the pressure amplitude generated by the magnetic drive is introduced. Based on the basic alternating magnetic force generated by the motor-driven rotating magnet, a rotatable permalloy plate turntable is inserted between the rotating magnet and the magnetic block. Permalloy is a highly permeable magnetic material that can shield or guide magnetic field lines. The permalloy plate areas and hollow areas of different thicknesses designed on the turntable will cause different degrees of interference to the magnetic field lines passing through them: the hollow areas have almost no effect, while the permalloy plates of different thicknesses will produce different degrees of magnetic shielding effect (generally, the greater the thickness, the stronger the shielding effect). Through a bevel gear set and a reduction gearbox, the motor drives the rotating magnet to rotate while simultaneously driving the permalloy plate turntable to rotate at different speeds. Thus, when the rotating magnet and the magnetic block interact, the intermediate permalloy plate turntable will periodically change its degree of interference with the magnetic force, resulting in periodic or quasi-periodic changes in the magnetic force intensity acting on the magnetic block (and the resulting reciprocating motion amplitude). This causes the volume change of the cylinder chamber to be no longer constant, but to fluctuate within a certain range, thus generating alternating pressure outputs of varying strengths.

[0029] Furthermore, a heating ring is provided within the housing. When the movable part of the cylinder assembly returns to its original position, the heating ring contacts the movable push plate of the waterproof partition structure. This design introduces a heating ring located at a specific position inside the housing. When the device stops operating or the movable part of the cylinder assembly (and its connected movable push plate) moves to its lowest or reset position, the movable push plate contacts the heating ring. The heating ring generates heat and transfers it to the movable push plate, thereby heating the gap area between the exterior of the waterproof structure and the exterior of the cylinder assembly through radiation or conduction.

[0030] According to the present invention, a blood circulation promoting device includes a housing with one or more vent holes. These vent holes connect the waterproof partition structure to the gap between the cylinder assembly and the waterproof partition structure. The vent holes are covered with a filter screen, a breathable but waterproof membrane, or a sealing plug. This design provides vent holes on the housing, connecting the exterior of the waterproof structure to the exterior of the cylinder assembly. When the movable parts of the cylinder assembly reciprocate, the volume of the gap changes accordingly. The presence of the vent holes allows the air pressure inside the gap to remain balanced with the external ambient air pressure. Furthermore, the vent holes can be covered with a filter screen (to prevent dust, hair, etc. from entering), a breathable but waterproof membrane (allowing gas exchange but preventing liquid entry), or a sealing plug (for sealing during cleaning).

[0031] Furthermore, the housing is configured as a detachably connected air nozzle cover and base;

[0032] The air inlet and the fixing component of the cylinder assembly are disposed on the air nozzle cover;

[0033] The power source, the drive mechanism, the waterproof partition structure, and the movable parts of the cylinder assembly are mounted on the base.

[0034] The air nozzle cover and the base are connected by friction, magnetic attraction, or interlocking.

[0035] This design defines a detachable housing consisting of a valve cap and a base, making hygienic maintenance and cleaning of the device more convenient and thorough. The valve cap, which comes into direct contact with human skin, is most susceptible to contamination from bodily fluids such as sweat, dander, or wound exudate. With its detachable design, users can easily remove this part from the base, which contains the power supply and drive mechanism, for independent, comprehensive, and even higher-level cleaning and disinfection of the valve cap (such as wiping or soaking in medical alcohol or other disinfectants) without worrying about damaging the delicate components inside the base. This easy-to-clean design significantly improves the hygienic safety of the device across different users or multiple uses, making it particularly suitable for clinical or home-based shared use scenarios. Friction connections, magnetic connections, or snap-fit ​​connections ensure convenient and reliable separation and reassembly.

[0036] Compared with the prior art, the blood circulation promoting device of this utility model has the following beneficial effects:

[0037] 1. Introduction of waterproof partition structure: The core of this utility model is the addition of a waterproof partition structure, which divides the internal functional areas of the device into a "wet zone" (air inlet, air chamber) that may come into contact with moisture and a "dry zone" (power source, drive mechanism) that needs to be kept dry.

[0038] 2. Physical isolation between wet and dry areas: The waterproof separation structure acts as a physical barrier, effectively preventing liquids (body fluids, external moisture, etc.) that may exist in the wet area from seeping into or spreading to the dry area.

[0039] 3. Protection of critical internal components: The power source (battery, circuitry) and drive mechanism (motor, mechanical transmission components) are highly sensitive to moisture and humid environments. Moisture intrusion can easily lead to corrosion, short circuits, and malfunctions. Through the isolation of the waterproof structure, these critical components are effectively protected in a dry environment.

[0040] 4. Improve the reliability and service life of the device: Since the internal core components are protected from damage caused by moisture, the probability of device failure is greatly reduced, the performance stability is guaranteed, thereby significantly improving the reliability of the device and extending its design service life.

[0041] 5. Improved Hygiene and Safety: Isolating the air vents and air chambers from external contact with sensitive internal components allows for easier and more thorough cleaning and disinfection without damaging the internal structure. This helps reduce the risk of bacterial growth and cross-infection, improving the hygiene and safety of the device in medical or personal care environments. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0044] Figure 2 This is a sectional view (side view) of the internal structure of Embodiment 1 of this utility model;

[0045] Figure 3 This is a cross-sectional view (front view) of the internal structure of Embodiment 1 of this utility model;

[0046] Figure 4 This is an exploded view of Embodiment 1 of this utility model;

[0047] Figure 5 This is a schematic diagram (front view) of another replaceable structure for the vent in this utility model;

[0048] Figure 6 This is an internal structural diagram of the air nozzle cover part in this utility model;

[0049] Figure 7 This is a sectional view (side view) of the internal structure of Embodiment 2 of this utility model;

[0050] Figure 8 This is a sectional view (side view) of the internal structure of Embodiment 3 of this utility model;

[0051] Figure 9 This is a sectional view (side view) of the internal structure of Embodiment 4 of this utility model;

[0052] Figure 10 This is a sectional view (side view) of the internal structure of Embodiment 5 of this utility model;

[0053] Figure 11 This is a structural diagram of the permalloy plate turntable in Embodiment 5 of this utility model;

[0054] Figure 12 This is a sectional view (side view) of the internal structure of Embodiment 6 of this utility model;

[0055] Figure 13 This is a sectional view (side view) of the internal structure of Embodiment 7 of this utility model;

[0056] Figure 14 This is a schematic diagram of the separation structure of Embodiment 8 of this utility model.

[0057] Figure label:

[0058] 1. Housing; 2. Cylinder assembly; 3. Drive mechanism; 4. Waterproof partition structure; 5. Power source; 6. Gap; 8. Sensor; 9. Vent hole; 10. Air port; 11. Protective layer.

[0059] 20. Air chamber; 21. Fixed sleeve; 22. Movable pusher; 23. Movable sleeve; 24. Magnetic block; 25. Electromagnetic coil; 26. First permanent magnet ring; 27. Second permanent magnet ring; 28. Spring.

[0060] 30. Power output unit; 31. Motor; 32. Transmission components;

[0061] 41. Corrugated pipe; 42. Movable push plate; 45. Flexible partition; 46. Sealing collar;

[0062] 90. Vent, 100. Blood circulation promoting device, 101. Pressure sensor, 102. Heating ring, 103. Filter screen, 104. Bevel gear set, 105. Gearbox, 106. Permalloy plate turntable, 1061. Thick plate area, 1062. Second thick plate area, 1063. Thin plate area, 1064. Second thin plate area, 1065. Hollowed-out area;

[0063] 201. Fixed piston cylinder; 202. Moving piston cylinder; 203. Connecting cavity; 211. Air chamber support cylinder; 212. Outer fixed cylinder; 213. Fixed guide rail; 214. Inverted.

[0064] 310. Output shaft; 311. Rotating magnet; 321. Crank; 322. Connecting rod; 323. Screw rod; 324. Nut; 325. Gear. Detailed Implementation

[0065] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0066] Example 1

[0067] Combination Figures 1 to 6 As shown, the first embodiment of this utility model provides a blood circulation promoting device 100. The device mainly includes a housing 1, a cylinder assembly 2, a drive mechanism 3, a waterproof partition structure 4, a pressure sensor 101, a power source 5, and a control unit. The housing 1 has an externally open air port 10 for contact with local tissue surfaces of the user's body during use. The housing 1 constitutes the external appearance and internal space of the device. The housing 1 can be composed of multiple parts, which can be fixed by means of bonding, ultrasonic welding, or screw connection, and sealing gaskets can be provided at the joints to ensure waterproofing. Figure 4 As shown, the outer surface of the housing 1 may be covered with a protective layer 11, for example, made of an elastic, waterproof material (such as silicone), to provide a better feel, anti-slip properties and additional waterproof protection.

[0068] A power source 5, such as a rechargeable battery pack, is housed inside the housing 1 to provide electrical power to the entire device. A drive mechanism 3 is also located inside the housing 1 and is electrically connected to the power source 5. The drive mechanism 3 is used to generate mechanical motion.

[0069] The cylinder assembly 2 is disposed inside the housing 1 and forms an air chamber 20 communicating with the air port 10. The cylinder assembly 2 includes a fixed part and a movable part, and the air chamber 20 is jointly defined by the internal spaces of the fixed part and the movable part. Specifically, in this embodiment, the cylinder assembly 2 includes a fixed sleeve 21 and a movable push cylinder 22, which are respectively the fixed part and the movable part of the cylinder assembly 2. The fixed sleeve 21 is fixed inside the housing 1 near the air port 10. The fixed sleeve 21 includes an air chamber support cylinder 211 and an outer fixed cylinder 212. The movable push cylinder 22 is sleeved on the outside of the outer fixed cylinder 212 and can reciprocate along its axial direction on the outer surface of the outer fixed cylinder 212. The inner cavities of the air chamber support cylinder 211 and the movable push cylinder 22 are connected to each other so that the air chamber 20 is jointly defined by the inner cavities of the air chamber support cylinder 211 and the movable push cylinder 22. The air inlet 10 of the housing 1 is located at or connected to the top of the air chamber 20. When the movable pusher 22 moves upward (closer to the fixed sleeve 21), the volume of the air chamber 20 decreases, and air is discharged outward through the air inlet 10, generating positive pressure. When the movable pusher 22 moves downward (away from the fixed sleeve 21), the volume of the air chamber 20 increases, and air is drawn inward through the air inlet 10, generating negative pressure (suction).

[0070] In this embodiment, the drive mechanism 3 includes a motor 31 and a transmission component 32. The motor 31 is disposed inside the housing 1 and receives electrical energy from the power source 5 to generate rotational motion. The transmission component 32 employs a crank 321 and a connecting rod 322 mechanism to convert the rotational motion generated by the output shaft 310 of the motor 31 into reciprocating linear motion in the vertical direction. One end of the crank 321 is fixed to the output shaft 310 of the motor, and the other end is connected to the connecting rod 322 via a pivoting structure such as a pin. The other end of the connecting rod 322 is connected to the movable component of the cylinder assembly 2, namely the movable push cylinder 22, driving the movable push cylinder 22 to reciprocate axially along the outer fixed cylinder 212.

[0071] This embodiment includes a waterproof separation structure 4, which waterproofly separates the air inlet 10 and the air chamber 20 area of ​​the cylinder assembly 2 from the area inside the housing 1 that houses the power source 5 and the drive mechanism. The waterproof separation structure 4 includes a bellows 41 and a movable push plate 42. The movable push plate 42 is coupled to the movable part of the cylinder assembly 2, namely the movable push cylinder 22. The movable push plate 42 can be made of a relatively rigid material and is connected to a connecting rod 322, which drives it to move up and down, thereby driving the movable push cylinder 22 connected to it to move. The bellows 41 is made of a flexible, waterproof material, with its top fixed inside the housing 1 or fixedly connected to a fixed part of the cylinder assembly 2 (e.g., below the air chamber support cylinder 211 of the fixed sleeve 21), and its bottom passively connected to the movable push plate 42. The corrugated structure of the bellows 41 allows it to fold and unfold freely as the movable push cylinder 22 (via the movable push plate 42) moves up and down, maintaining a sealed isolation between the area containing the air port 10 and the air chamber 20 and the internal components such as the motor 31 and power source 5. The waterproof partition structure 4 completely surrounds the potential leakage area between the movable and fixed parts of the cylinder assembly 2, effectively preventing external liquids from seeping into the device and improving the reliability and service life of the device.

[0072] A gap 6 may be formed between the shell 1 and the waterproof partition structure 4 (e.g. Figure 2 and Figure 3 As shown). Figure 3 As shown, the housing 1 is provided with one or more vent holes 9, which are located on the inner side of the center of the air nozzle cover. Alternatively, it can be replaced with... Figure 5 The vent 90 shown is located on the outside of the air nozzle cover. The vent 9 or vent 90 communicates with the gap 6 formed between the interior of the waterproof partition structure 4 (especially the inner wall of the bellows 41) and the cylinder assembly 2. The volume of the gap 6 changes as the movable push cylinder 22 moves up and down. The vent 9 effectively balances the air pressure within the gap 6, preventing the bellows 41 from being subjected to excessive pressure differentials during movement, which could affect its deformation or lifespan. Figure 6 As shown, a filter screen 103 can be covered on the vent 9 or air hole 90 to prevent external hair or other small foreign objects from entering the gap 6, avoiding potential blockage or contamination. Alternatively, the vent can be fitted with a membrane or sealing plug that is breathable but waterproof, allowing gas exchange while effectively preventing liquid entry. The vent can also serve as a channel for cleaning or disinfecting the gap 6, further improving the hygiene level of the device.

[0073] like Figure 2As shown, a heating ring 102 can be installed inside the housing 1. The heating ring 102 is positioned near the reset position of the movable part of the cylinder assembly 2. When the device stops working and the movable part is reset to the lower position, the movable push plate 42 contacts the heating ring 102. The heating ring 102 generates heat when energized, and the heat is transferred to the interior space of the gap 6 through the movable push plate 42, accelerating the evaporation of any moisture that may be present in the gap 6 and helping to keep the area dry. A dry environment can effectively inhibit the growth of bacteria and mold, further improving the hygiene and safety of the device.

[0074] like Figure 1 As shown, a pressure sensor 101 can be installed on the housing 1 at the end away from the air vent to detect pressure values, such as the gripping pressure applied by the user when holding the housing. The pressure sensor 101 is preferably located in the area where the user typically grips the device, i.e., at the end away from the air vent. The pressure sensor 101 is electrically connected to a control unit (not shown). The control unit can adjust the rotational speed of the motor 31 or other drive parameters based on the gripping pressure sensed by the pressure sensor 101, thereby changing the frequency and / or amplitude of the generated alternating pressure. For example, when the user grips tightly, the device can increase the pressure intensity or frequency according to preset logic to provide a stronger external force; when the user grips loosely, it can decrease the pressure intensity or frequency to provide a gentler external force. This function of adjusting based on user feedback enhances the personalized experience and comfort of the device.

[0075] This embodiment achieves reciprocating motion through a simple crank-connecting rod mechanism. Combined with a bellows waterproof structure, it effectively isolates the air chamber area from the drive mechanism area with water. The structure is compact and easy to manufacture and assemble. Adding vents, filters, heating rings, and pressure sensors further enhances the device's hygiene, reliability, and user experience.

[0076] In addition, the device is equipped with at least one sensor 8, which is located near the air inlet 10, at the top or tip of the housing 1, in an area that is in direct contact with the user's body. The sensor 8 is electrically connected to the control unit. The sensor 8 can be of various types, such as a pressure sensor, a light sensor, or a touch sensor. Its main function is to detect when the device comes into contact with the user's body. Based on this contact detection, the signal from the sensor 8 can be used to control the operation of the device, such as starting or stopping the motor 31. Furthermore, especially when the sensor 8 functions as a pressure sensor, it can sense the pressure at the air inlet 10 and feed this information back to the control unit so that the alternating positive and negative pressure output generated by the device can be modified or adjusted according to the sensed pressure, thereby achieving dynamic control of the intensity or pattern of the external force.

[0077] Example 2

[0078] Reference Figure 7 The second embodiment of this utility model provides a blood circulation promoting device 100, which differs from the first embodiment in that it adopts a different driving mechanism and transmission components. In this embodiment, the driving mechanism includes a motor and a transmission component, which adopts a screw rod 323 and a nut 324 mechanism. The output shaft 310 of the motor is connected to the vertically arranged screw rod 323 through a gear 325. In this embodiment, the gear 325 is a bevel gear, used to change the direction of the transmission axis. The nut 324 meshes with the screw rod 323, and its rotation is restricted by the guide rail inside the housing 1 (not shown in the figure), and can only move up and down along the axial direction of the screw rod 323. The nut 324 is connected to the movable push plate 42 of the waterproof structure 4, and the movable push plate 42 is in turn connected to the movable component (e.g., the movable push cylinder 22) of the cylinder assembly 2. When the motor drives the screw rod 323 to rotate (alternating between forward and reverse rotation), the nut 324 is driven to reciprocate along the axial direction, thereby driving the movable component of the cylinder assembly 2 to reciprocate up and down, changing the volume of the air chamber 20, and generating alternating positive and negative pressure. The screw rod 323 can adopt a double helix structure, so that the nut 324 can automatically achieve reciprocating motion when the screw rod 323 rotates in one direction, simplifying control.

[0079] The structure of cylinder assembly 2 (e.g., fixed sleeve 21 and movable pusher 22 or fixed piston cylinder 201 and movable piston cylinder 202) and the waterproof separation structure 4 (e.g., bellows 41 and movable pusher plate 42) function similarly to those in embodiment 1. The movable pusher plate 42 is connected to nut 324 and drives the movable parts of cylinder assembly 2. The bellows 41 connects to the movable pusher plate 42 and the fixed structure, providing a waterproof seal.

[0080] This embodiment uses a screw rod and nut mechanism to convert rotary motion into linear motion, enabling more precise reciprocating stroke control. The waterproof structure functions and achieves similar technical effects to Embodiment 1, effectively isolating moisture from the internal drive mechanism. Other optional features, such as vents, filters, heating rings, and pressure sensors, can also be applied to this embodiment.

[0081] Example 3

[0082] Reference Figure 8Embodiment 3 of this utility model provides a blood circulation promoting device 100, whose driving mechanism is a magnetic driving mechanism. The magnetic driving mechanism includes an electromagnetic coil 25 and a magnetic block 24. The electromagnetic coil 25 is disposed inside the housing 1, receives electrical energy from the power source 5, and controls the current to achieve on / off switching or current direction switching, so as to generate an intermittent or alternating magnetic field. The movable part of the cylinder assembly 2 is a movable sleeve 23, and the movable sleeve 23 is provided with a magnetic block 24. The outer wall of the fixed part of the cylinder assembly 2 is provided with a fixed guide rail 213, and the movable sleeve 23 slides on the fixed guide rail 213 to achieve reciprocating motion along the fixed guide rail 213. The fixed guide rail 213 is provided by the fixed part of the cylinder assembly 2 or the housing 1. The upper inner wall of the movable sleeve 23 has a buckle 214. The movable sleeve 23 is fastened to the outer edge of the fixed part of the cylinder assembly 2 through the buckle 214, so that the upper end of the movable sleeve 23 is fastened to the lower end of the fixed part of the cylinder assembly 2, thereby limiting the movement stroke of the movable sleeve 23 when it moves up and down and preventing it from disengaging from the fixed guide rail 213.

[0083] In this embodiment, the waterproof partition structure 4 can be a fixed, magnetically permeable, waterproof partition, disposed between the electromagnetic coil 25 and the air cavity 20 region of the cylinder assembly 2, separating the electromagnetic coil 25 from the magnetic block 24. Through this partition, the magnetic field generated by the electromagnetic coil 25 can act on the magnetic block 24, driving the movable sleeve 23 and the magnetic block 24 on it to reciprocate, thereby changing the volume of the air cavity 20. For example, when the electromagnetic coil 25 is energized, the generated magnetic field interacts with the magnetic block 24, generating a pushing or pulling force (depending on the magnetic pole setting and current direction), driving the movable sleeve 23 to move in one direction (e.g., upward, reducing the volume of the air cavity 20). After the power is turned off, the movable sleeve 23 can move in another direction (e.g., downward, increasing the volume of the air cavity 20) under the action of its own gravity, the restoring force of the spring 28, or the attraction / repulsion force generated by the permanent magnet rings (e.g., the first permanent magnet ring 26 and the second permanent magnet ring 27) disposed at both ends of the guide rail. By periodically controlling the working state of the electromagnetic coil 25, the periodic reciprocating motion of the movable sleeve 23 can be achieved, generating alternating positive and negative pressure.

[0084] This magnetically driven structure reduces mechanical transmission components, resulting in a relatively simple structure and lower noise. The waterproof partition 40 ensures isolation of electrical components such as the electromagnetic coil from the humid environment. Other optional features, such as vents, filters, heating rings, and pressure sensors, can also be applied to this embodiment.

[0085] Example 4

[0086] Reference Figure 9Embodiment 4 of this utility model provides a blood circulation promoting device 100, whose driving mechanism is also a magnetic driving mechanism, but uses a different magnetic force generation method. The magnetic driving mechanism includes a motor, a rotating magnet 311 controlled by the motor to rotate, and a magnetic block 24 magnetically coupled to the rotating magnet 311. The output shaft 310 of the motor drives the rotating magnet 311 to rotate. The movable part of the cylinder assembly 2 is a movable sleeve 23, on which the magnetic block 24 is provided. The movable sleeve 23 reciprocates along the fixed guide rail 213.

[0087] In this embodiment, the waterproof separation structure 4 is a fixed, magnetically permeable, waterproof partition, positioned between the rotating magnet 311 and the air chamber 20 region of the cylinder assembly 2, separating the rotating magnet 311 and motor 31 from the magnetic block 24. During rotation, the rotating magnet 311 generates an alternating magnetic force on the magnetic block 24, driving the movable sleeve 23 to reciprocate along the fixed guide rail 213, thereby changing the volume of the air chamber 20. Similarly, a spring 28 or the first permanent magnet ring 26 and second permanent magnet ring 27 from embodiment 3 can be provided to provide restoring or auxiliary force. By adjusting the rotational speed of the motor 31, the rotational speed of the rotating magnet 311 can be changed, thereby adjusting the frequency of the generated alternating magnetic field, and consequently adjusting the reciprocating frequency of the movable parts and the frequency of the generated alternating pressure.

[0088] This embodiment achieves contactless actuation by using a motor to drive a rotating magnet to generate magnetic force, reducing friction and wear. The waterproof partition structure 4 ensures isolation of the electrical and drive components from the humid environment. Other optional features, such as vents, filters, heating rings, and pressure sensors, can also be applied to this embodiment.

[0089] Example 5

[0090] Reference Figure 10 and Figure 11 Embodiment 5 of this utility model is an improvement on Embodiment 4 (motor-driven rotating magnet), aiming to provide an alternating pressure output mode with variable strength. The magnetic drive mechanism also includes a bevel gear set 104, a reduction gearbox 105, and a permalloy plate turntable 106. The bevel gear set 104 includes a driving bevel gear and a driven bevel gear. The driving bevel gear is coaxially sleeved on the output shaft 310 of the motor, so the motor drives the driving bevel gear to rotate while driving the rotating magnet 311 to rotate. The driven bevel gear is connected to the power input end of the reduction gearbox 105 via a rotating shaft. The power output end of the reduction gearbox 105 drives the permalloy plate turntable 106 to rotate via a rotating shaft. The function of the reduction gearbox 105 is to enable the permalloy plate turntable 106 to rotate at a different speed than the rotating magnet 311.

[0091] A permalloy plate turntable 106 is rotatably disposed between the rotating magnet 311 and the magnetic block 24, serving as a medium for adjusting the magnetic force. The permalloy plate turntable 106 has a rotating ring with several permalloy plate regions of varying thicknesses distributed circumferentially, such as a thick plate region 1061, a medium-thick plate region 1062, a thin plate region 1063, and a medium-thin plate region 1064. Each permalloy plate is separated by a hollow region 1065. Permalloy has high magnetic permeability, which can shield or guide magnetic field lines, thus affecting the strength of the magnetic force. When the permalloy plate turntable 106 rotates, the strength of the magnetic force exerted by the rotating magnet 311 on the magnetic block 24 changes periodically depending on the thickness of the permalloy plate located between the rotating magnet 311 and the magnetic block 24, or whether it is a hollow region 1065. For example, the magnetic force is strongest when the hollowed-out area 1065 is located between the two; the magnetic force is weakest when the thick plate area 1061 is located between the two; other thickness areas provide a medium-strength magnetic force. Since the permalloy plate turntable 106 rotates at a different speed than the rotating magnet 311, the magnetic force acting on the magnetic block 24 will periodically switch between different intensities in each reciprocating stroke. For example, it can experience a strong-weak-strong-weak change in a reciprocating cycle, or a more complex pattern, which causes the reciprocating motion amplitude of the movable parts of the cylinder assembly 2 (such as the movable sleeve 23) to change periodically, thereby generating alternating pressures of different intensities.

[0092] This embodiment achieves periodic adjustment of magnetic force intensity by adding a permalloy plate turntable and its drive mechanism, thereby generating more diverse pressure output modes, such as alternating pressure with different strength cycles or pulsed strength changes. This better adapts to different treatment needs and provides a richer user experience. The waterproof partition structure 4 functions similarly to that in the fourth embodiment, ensuring the isolation of electrical and drive components from the humid area.

[0093] Example 6

[0094] Reference Figure 12 Embodiment 6 of this utility model provides a blood circulation promoting device 100, whose cylinder assembly 2 adopts a structure in which a moving piston cylinder 202 moves inside a fixed piston cylinder 201. The moving piston cylinder 202 is slidably sleeved on the inner wall of the fixed piston cylinder 201. The moving piston cylinder 202 and the fixed piston cylinder 201 are the movable and fixed parts of the cylinder assembly 2. The fixed piston cylinder 201 is fixed inside the housing 1. Similarly, an air chamber 20 is formed in the inner cavity space of the moving piston cylinder 202 and the fixed piston cylinder 201. The moving piston cylinder 202 slides axially up and down inside the fixed piston cylinder 201. A sealing structure (e.g., a piston ring, not shown in the figure) is also provided between the moving piston cylinder 202 and the fixed piston cylinder 201 to ensure the sealing of the air chamber 20.

[0095] The power output unit 30 of the drive mechanism (e.g., a motor drive structure) is located inside the lower part of the housing 1. A waterproof partition structure 4 is located between the power output unit 30 and the air chamber 20 area of ​​the cylinder assembly 2. The waterproof partition structure 4 can be a combination of a bellows 41 and a movable push plate 42. The movable push plate 42 is connected to or abuts against the bottom of the moving piston cylinder 202. The bottom of the moving piston cylinder 202 is provided with a connecting cavity 203 adapted to the movable push plate 42, that is, the connecting cavity 203 at the bottom of the moving piston cylinder 202 can be mated with the movable push plate 42 and is suitable to be closed by the movable push plate 42 to achieve reliable connection or pressure. The output end of the power output unit 30 is connected to the movable push plate 42, driving the movable push plate 42 to move up and down reciprocally, thereby driving the moving piston cylinder 202 to move reciprocally inside the fixed piston cylinder 201, changing the volume of the air chamber 20, and generating alternating positive and negative pressure. The bellows 41 is connected to the bottom of the fixed piston cylinder 201 or the corresponding position of the housing 1, and the other end is connected to the movable push plate 42, which separates the drive mechanism and the area of ​​the movable push plate 42 below the moving piston cylinder 202 from the air chamber 20 inside the fixed piston cylinder 201, providing a waterproof seal.

[0096] This internal piston cylinder structure may be more compact in some designs. The waterproof structure 4 functions similarly to the first embodiment, effectively isolating the drive mechanism area from the air chamber area where moisture may enter. Other optional features, such as vents, filters, heating rings, and pressure sensors, can also be applied to this embodiment.

[0097] Example 7

[0098] Reference Figure 13 Embodiment 7 of this utility model provides a blood circulation promoting device 100, whose waterproof partition structure adopts the form of a flexible partition 45. The flexible partition 45 is disposed inside the housing 1, spanning the width of the housing 1, separating the top air chamber 20 area where the cylinder assembly 2 is located from the area below that houses the power source 5 and the drive mechanism. The flexible partition 45 is made of a flexible, waterproof material and has a sleeve hole for the transmission component (e.g., connecting rod 322) of the drive mechanism to pass through. A sealing collar 46 is disposed at the sleeve hole of the flexible partition 45 and tightly engages with the connecting rod 322 or similar drive component, for example, through elastic engagement or bonding. The sealing collar 46 itself may also have a certain degree of flexibility or corrugation to accommodate the reciprocating motion of the connecting rod 322 while maintaining a sealed connection with the connecting rod 322 and the edge of the flexible partition 45, thereby maintaining the waterproof integrity of the entire waterproof partition structure. In this example, the structure of the cylinder assembly 2 and the drive mechanism (motor 31, transmission components 32 such as crank 321 and connecting rod 322) can be similar to that of the first embodiment, with the connecting rod 322 driving the movable component (movable push cylinder 22 or moving piston cylinder 202) of the cylinder assembly 2 to reciprocate.

[0099] This embodiment achieves waterproof isolation between the air chamber area and the drive mechanism area through a combination of a flexible partition and a sealing collar. This waterproof structure is suitable for designs where the drive components need to pass through a waterproof barrier. Other optional features, such as vents, filters, heating rings, and pressure sensors, can also be applied to this embodiment, with similar placement and function to the aforementioned embodiments.

[0100] Example 8

[0101] Reference Figure 14 Embodiment 8 of this utility model provides a blood circulation promoting device 100, which differs from Embodiment 1 in that the housing 1 is constructed as a separable nozzle cover and base, that is, the housing 1 is constructed as a detachably connected nozzle cover and base. The nozzle cover includes components that directly contact the external environment, such as the air inlet 10, the fixing components of the cylinder assembly 2 (such as the fixing sleeve 21 or the fixing piston cylinder 201), and the installed sensors 8 (such as temperature sensors). The base includes a power source 5, a drive mechanism (such as any one of the drive mechanisms in Embodiments 1 to 7), a waterproof partition structure (such as any one of the waterproof structures in Embodiments 1, 6, and 7), and a movable component of the cylinder assembly 2. The movable component of the cylinder assembly 2 is connected or coupled to the waterproof partition structure 4 and is driven by the drive mechanism 4. The waterproof partition structure 4 separates the drive mechanism 3 and the power source 5 in the base from the air chamber area in the nozzle cover.

[0102] The valve cap and base are designed to be interconnected and detachable. The connection can be achieved through a tight friction fit, such as through precision-machined mating surfaces; a magnetic connection using internal magnets for quick and easy connection and separation; or a snap-fit ​​structure for a secure mechanical connection. This detachable structure greatly facilitates thorough cleaning and disinfection of the valve cap, which comes into direct contact with the user, after use. For example, it can be washed with water or wiped with disinfectant without worrying about liquid seeping into the base and damaging areas containing electronic and mechanical components, thus significantly improving the device's hygiene, safety, and ease of maintenance. A pressure sensor can be mounted on the valve cap, such as... Figure 1 As shown, in other embodiments, it can also be mounted on a base.

[0103] The separable structural feature of this embodiment can be combined with any of the drive mechanism, cylinder assembly structure and waterproof separation structure in the aforementioned embodiments 1 to 7, so as to provide the advantage of easy cleaning and disinfection while realizing various functions.

[0104] The embodiments described above are for illustrative purposes only and are not intended to limit the scope of this utility model. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the spirit and scope of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A blood circulation promoting device, characterized in that, include: The shell (1) is provided with an air vent (10) that is open to the outside; A power source (5) is disposed inside the housing (1); The drive mechanism (3) is disposed inside the housing (1) and electrically connected to the power source (5); A cylinder assembly (2) is disposed within the housing (1) and has an air chamber (20) communicating with the air port (10); A waterproof partition structure (4) is provided inside the housing (1); A pressure sensor (101) is disposed on the housing (1) at the end away from the air port (10); The control unit is electrically connected to the drive mechanism (3), pressure sensor (101), and power source (5); The drive mechanism (3) is connected to the cylinder assembly (2) and controls the volume of the air chamber (20) to alternately increase or decrease by driving the reciprocating motion of the cylinder assembly (2), so as to drive the air port (10) to alternately provide positive and negative pressure to the outside; the power source (5) and the drive mechanism (3) are waterproofly separated from the air port (10) and the air chamber (20) of the cylinder assembly (2) inside the housing (1) by the waterproof separation structure (4).

2. The blood circulation promoting device according to claim 1, characterized in that, The cylinder assembly (2) includes a fixed part and a movable part, the movable part reciprocating relative to the fixed part, and the air chamber (20) is defined by the fixed part and the movable part.

3. The blood circulation promoting device according to claim 2, characterized in that: The fixed component is a fixed sleeve (21), and the movable component is a movable push cylinder (22). The fixed sleeve (21) is fixed inside the housing (1), and the movable push cylinder (22) is slidably sleeved on the outside of the fixed sleeve (21) and moves back and forth along its axial direction. or, The fixed component is a fixed piston cylinder (201), and the movable component is a moving piston cylinder (202). The fixed piston cylinder (201) is fixed inside the housing (1), and the moving piston cylinder (202) is slidably sleeved inside the fixed piston cylinder (201) and moves back and forth along its axial direction.

4. The blood circulation promoting device according to claim 1, characterized in that: The waterproof partition structure (4) includes a corrugated pipe (41) and a movable push plate (42). The movable push plate (42) is coupled to the movable part of the cylinder assembly (2). The corrugated pipe (41) is fixed inside the housing (1), and the other end is passively connected to the movable push plate (42). or, The waterproof separation structure (4) includes a flexible partition (45) and a sealing collar (46). The power source (5) and the drive mechanism (3) are waterproofly separated from the air port (10) and the air chamber (20) of the cylinder assembly (2) inside the housing (1) by the flexible partition (45). The flexible partition (45) has a sleeve hole for the transmission component of the drive mechanism (3) to pass through. The sealing collar (46) is disposed in the sleeve hole and is sealed to the transmission component of the drive mechanism (3).

5. The blood circulation promoting device according to claim 1, characterized in that: The drive mechanism (3) includes a motor (31) and a transmission component (32). The transmission component (32) includes a crank (321) and a connecting rod (322). The crank (321) is rotatably connected to the output shaft (310) of the motor (31). One end of the connecting rod (322) is connected to the crank (321), and the other end is connected to the movable part of the cylinder assembly (2). or, The drive mechanism (3) includes a motor (31) and a transmission component (32). The transmission component (32) includes a screw rod (323) and a nut (324). The screw rod (323) is connected to the output shaft (310) of the motor (31) via a gear (325). The nut (324) meshes with the screw rod (323) and is connected to the movable part of the cylinder assembly (2).

6. The blood circulation promoting device according to claim 1, characterized in that: The driving mechanism (3) is a magnetic driving mechanism, which includes a magnetic block (24) and an electromagnetic coil (25). The magnetic block (24) is disposed on the movable part of the cylinder assembly (2) and separated from the electromagnetic coil (25) by the waterproof separation structure. The electromagnetic coil (25) is magnetically coupled to the magnetic block (24) to drive the magnetic block (24) and the movable part of the cylinder assembly (2) to reciprocate through electromagnetic force. or, The drive mechanism (3) is a magnetic drive mechanism, which includes a motor (31), a rotating magnet (311) controlled by the motor (31) to rotate, and a magnetic block (24) magnetically coupled to the rotating magnet (311). The magnetic block (24) is disposed on the movable part of the cylinder assembly (2) and is separated from the electromagnetic coil (25) by the waterproof separation structure. The alternating magnetic field generated by the rotation of the rotating magnet (311) acts on the magnetic block (24) and drives the movable part of the cylinder assembly (2) to reciprocate.

7. The blood circulation promoting device according to claim 6, characterized in that, The magnetic drive mechanism also includes a bevel gear set (104), a reduction gearbox (105), and a permalloy plate turntable (106). The permalloy plate turntable (106) is disposed between the rotating magnet (311) and the magnetic block (24). The bevel gear set (104) is connected to the output shaft (310) of the motor (31) and drives the power input end of the reduction gearbox (105). The power output end of the reduction gearbox (105) drives the permalloy plate turntable (106) to rotate. The permalloy plate turntable (106) has several permalloy plates of different thicknesses distributed circumferentially, and there are hollow areas (1065) between the permalloy plates of different thicknesses.

8. The blood circulation promoting device according to claim 1, characterized in that, A heating ring (102) is provided inside the housing (1). When the movable part of the cylinder assembly (2) is reset, the heating ring (102) contacts the movable push plate (42) of the waterproof partition structure (4).

9. The blood circulation promoting device according to claim 1, characterized in that, The housing (1) is provided with one or more vent holes (9), which are used to connect the gap (6) between the waterproof partition structure and the cylinder assembly (2). The vent holes (9) are covered with a filter screen (103) or a membrane or sealing plug that has the function of being breathable but not waterproof.

10. The blood circulation promoting device according to claim 1, characterized in that, The housing (1) is configured as a detachably connected air nozzle cover and base; The fixing parts of the air port (10) and the cylinder assembly (2) are disposed on the air nozzle cover; The movable parts of the power source (5), the drive mechanism (3), the waterproof partition structure (4), and the cylinder assembly (2) are mounted on the base. The air nozzle cover and the base are connected by friction, magnetic attraction, or interlocking.

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