Pump-valve integrated diaphragm air pump device and electronic sphygmomanometer

Abstract

The utility model discloses a kind of pump valve integrated diaphragm air pump devices, by pump valve integration to solve the structure complex of prior art electronic sphygmomanometer, the problem of multiple space occupation;In detail, the technical scheme includes integrated gas path casing, piston airbag piece, sealing elastic piece, power transmission execution component, the power transmission execution component includes motor, transmission part and execution assembly;Among them, the piston airbag piece has first check valve, integrated gas path casing has two-way airway in, the two-way airway has exhaust port, the execution assembly has through-hole;Its principle is by two-way airway and first check valve, so that the same airway forms closed intake path when inflating, and becomes straight-through exhaust path when deflating, reduces the number of components;In addition, by motor drive execution assembly directly extruding elastic sealing piece, the quick opening and closing of exhaust port is realized, and thus the pump valve integrated device can solve the problem of compact structure and reduce space occupation.

Description

Technical Field

[0001] This utility model relates to the field of blood pressure monitor technology, and in particular to a pump-valve integrated diaphragm air pump device and an electronic blood pressure monitor. Background Technology

[0002] In the modern medical and health field, electronic blood pressure monitors have become commonly used blood pressure measurement devices in homes and medical institutions due to their advantages such as ease of operation and rapid measurement. The gas path system of an electronic blood pressure monitor is a core component, and its performance directly affects the accuracy of blood pressure measurement and the reliability of the device. Currently, the gas path system of existing electronic blood pressure monitors is typically equipped with devices such as an air pump, solenoid valve, and leakage valve. These devices are interconnected through flexible tubing to form the entire gas path.

[0003] This traditional pneumatic system structure has many drawbacks. From a structural perspective, it is complex, with the combination of multiple independent devices and hose connections. These numerous devices occupy a large space inside the electronic blood pressure monitor, which hinders the miniaturization design of the device and limits the development of electronic blood pressure monitors in emerging application scenarios such as portable and wearable devices.

[0004] On the other hand, in some application scenarios with special requirements for equipment structure, such as wearable medical devices and miniaturized home health monitoring instruments, the traditional design of separating pumps and valves is not flexible enough, has a complex structure, and is too large, making it difficult to meet the needs of compact structure and integrated solutions.

[0005] Therefore, the above-mentioned problems need to be addressed. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, this utility model proposes a pump-valve integrated diaphragm air pump device and an electronic blood pressure monitor to solve the problems of complex structure and large space occupation of the existing electronic blood pressure monitor.

[0007] In a first aspect, a pump-valve integrated diaphragm air pump device includes: an integrated air passage housing having an interconnected upper air chamber and a lower air chamber inside, and a bidirectional air passage communicating with the upper air chamber; a piston airbag disposed on the airflow path of the bidirectional air passage, the piston airbag having a first one-way valve for allowing airflow to enter the bidirectional air passage in one direction; a sealing elastic element disposed at the exhaust port of the bidirectional air passage; a power transmission actuator including a motor connected to a transmission component, the other end of the transmission component being connected to an actuator assembly; the actuator assembly being disposed in the lower air chamber and having an air inlet communicating with the upper air chamber and the lower air chamber; when the motor drives the transmission component to rotate, the transmission component drives the actuator assembly to rise, the actuator assembly compresses the sealing elastic element to deform and seal the exhaust port, the bidirectional air passage, the first one-way valve, and the air inlet cooperate to form an intake air passage; when the motor stops driving, the sealing elastic element rebounds, causing the actuator assembly to descend, the exhaust port opens, and the bidirectional air passage serves as an exhaust passage.

[0008] Furthermore, the sealing elastic element includes an elastic layer and a support layer; the elastic layer wraps around the outer periphery of the support layer to form an integral structure.

[0009] Furthermore, the sealing elastic member has a first protrusion on the side facing the exhaust port, and the cross-sectional shape of the first protrusion matches the edge of the exhaust port. When the actuating component squeezes the sealing elastic member, the first protrusion expands radially to seal the exhaust port.

[0010] Furthermore, the sealing elastic member has a skirt portion arranged radially along the outer periphery of the first protrusion; the thickness of the skirt portion gradually increases from the end connected to the first protrusion to its free end.

[0011] Furthermore, the transmission component includes a base having a moving track; the actuation component includes a connector and a mating component connected to the connector; the connector is obliquely assembled in the moving track and forms an included angle α at the connection with the moving track.

[0012] Furthermore, the mating component also has a cylindrical assembly portion, on which the air inlet is provided; the piston airbag component also includes an airbag portion, in which the first one-way valve is located; the mating component is embedded in the airbag portion, such that the air inlet is connected to the first one-way valve to form part of the air intake path.

[0013] Furthermore, the mating member has a second protrusion on the side facing the sealing elastic member; the sealing elastic member that mates with the second protrusion has a contact portion; when the motor rotates, the transmission member drives the actuation component to rise, at which time the second protrusion presses the contact portion, so that the first protrusion undergoes elastic deformation to seal the exhaust port.

[0014] Furthermore, the integrated air passage housing includes a first housing and a second housing, the first housing and the second housing cooperating to form the upper air chamber; it also includes a third housing, the second housing and the third housing cooperating to form the lower air chamber; the second housing has a through hole, the through hole connecting the upper air chamber and the lower air chamber; the piston airbag component is on the second housing to cover the through hole.

[0015] Furthermore, the top of the interior of the first housing has an airflow guiding path; the airflow guiding path cooperates with the first one-way valve and forms part of the intake air path.

[0016] In addition, an electronic blood pressure monitor is proposed, including a housing, wherein the housing has an electronic control component and an integrated pump-valve diaphragm air pump device as described above, which is electrically connected to the electronic control component.

[0017] The technical solutions provided in this application have the following advantages compared with the prior art:

[0018] This utility model provides an integrated pump and valve diaphragm air pump device, which solves the problem of complex structure and large space occupation in existing electronic blood pressure monitors by integrating the pump and valve into one unit. Specifically, this technical solution includes an integrated air passage housing, a piston air bladder, a sealing elastic element, and a power transmission actuator. The power transmission actuator includes a motor, a transmission component, and an actuator assembly. The piston air bladder has a first one-way valve, the integrated air passage housing has a bidirectional air passage with an exhaust port, and the actuator assembly has a through hole. The principle is that by using the bidirectional air passage and the first one-way valve, the same air passage forms a closed air intake path during inflation and a direct exhaust path during deflation, reducing the number of components. Furthermore, the motor drives the actuator assembly to directly compress the elastic seal, achieving rapid opening and closing of the exhaust port. Thus, the integrated pump and valve device solves the problem of compact structure and reduced space occupation. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the external structure of the pump-valve integrated device according to Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the internal structure of the pump-valve integrated device according to Embodiment 1 of this application;

[0024] Figure 3 This is a schematic diagram of the piston airbag component of this application;

[0025] Figure 4 This is an exploded structural diagram of the pump-valve integrated device according to Embodiment 2 of this application;

[0026] Figure 5 This is a schematic diagram of the air-filling process of the integrated pump and valve device of this application.

[0027] Figure 6 This is a schematic diagram of the exhaust of the integrated pump and valve device of this application;

[0028] Figure 7 A schematic diagram of the sealing elastic element of this application;

[0029] Figure 8-1 This is a schematic diagram of the internal structure of the moving track in this application;

[0030] Figure 8-2 This is an exploded structural diagram of the pump-valve integrated device of this application from another angle;

[0031] Figure 9 This is a schematic diagram of the bottom structure of the third housing in this application;

[0032] Figure 10-1 A schematic diagram showing the engagement of the sealing elastic element during the inflation of the integrated pump and valve device of this application;

[0033] Figure 10-2 A schematic diagram of the movement trajectory of the connecting parts during inflation in this application;

[0034] Figure 10-3A schematic diagram of the trajectory of the connecting member moving to its highest point during inflation, as per this application;

[0035] Figure 11 This is a schematic diagram of the mating parts of the pump-valve integrated device of this application during exhaust;

[0036] Figure 12 This is a schematic diagram of the electronic blood pressure monitor of this application;

[0037] Figure 13 This is a schematic diagram of the internal structure of the electronic blood pressure monitor of this application;

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Integrated air passage housing, 11-First housing, 111-Airflow guide path, 12-Upper air chamber, 13-Second housing, 131-Central hole, 132-Through hole, 14-Lower air chamber, 15-Third housing, 151-Airflow channel, 16-Bidirectional air passage, 161-Exhaust port, 2-Piston airbag component, 21-First one-way valve, 22-Airbag part, 23-Second one-way valve, 24-Through hole, 3-Sealing elastic element, 31-Elastic layer, 311-First protrusion Part, 312-Skirt part, 32-Support part, 33-Contact part, 4-Power transmission actuator, 41-Motor, 42-Transmission component, 421-Base, 4211-Moving track, 422-Air inlet, 43-Actuator assembly, 431-Connector, 432-Matching part, 4321-Columnar assembly, 4322-Air inlet, 4323-Second protrusion, A-Intake air passage, B-Exhaust passage, a-Angle, H-High point, h-Low point, C-Slope. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0042] To address the problem that traditional electronic blood pressure monitors have overly complex pump and valve devices that occupy too much space, this technical solution provides an integrated pump and valve diaphragm air pump device that integrates air intake and exhaust in one unit, and has a simple and compact structure to solve the above problems.

[0043] When used with an electronic blood pressure monitor, this integrated pump and valve device enables rapid inflation and precise deflation of the cuff. During operation, the motor-driven device inflates the cuff to the target pressure to block blood flow; after measurement, the device switches to deflation mode to slowly release the pressure.

[0044] Detailed, such as Figures 1 to 4 As shown, this technical solution discloses a pump-valve integrated diaphragm air pump device, which has a near-cylindrical structure and includes an integrated air passage housing 1. The integrated air passage housing 1 has an upper air chamber 12 and a lower air chamber 14 that are interconnected from top to bottom, and a bidirectional air passage 16 communicating with the upper air chamber 12. The bidirectional air passage 16 is a tubular structure with openings at both ends, and these openings communicate with its interior. The exhaust port 161 is located below the bidirectional air passage 16. The bidirectional air passage 16 communicates with the cuff, allowing for inflation or deflation of the cuff during operation.

[0045] A piston airbag component 2 is provided inside the upper air chamber 12. The piston airbag component 2 has a first one-way valve 21, which allows airflow to enter the bidirectional air passage 16 in one direction.

[0046] The integrated air passage housing 1 also includes a sealing elastic element 3 and a power transmission actuator 4. The sealing elastic element 3 is disposed at the exhaust port 161 of the bidirectional air passage 16.

[0047] The power transmission actuator 4 includes a motor 41, which is connected to a transmission component 42. The other end of the transmission component 42 is connected to an actuator 43. The actuator 43 is disposed in the lower air chamber 14 and has an air inlet 422 that connects the upper air chamber 12 and the lower air chamber 14.

[0048] This technical solution provides a highly integrated pump and valve device, which achieves a high degree of integration of cuff inflation and deflation functions through the design of the bidirectional air passage 16. During inflation, the motor 41 drives the transmission component 42 to rotate, causing the actuator 43 to rise and compress the sealing elastic element 3 to close the exhaust port 161. At this time, airflow sequentially enters the cuff through the air inlet 4322, the first one-way valve 21, and the bidirectional air passage 16 to complete inflation. During deflation, after the motor 41 stops, the sealing elastic element 3 rebounds, and the actuator 43 descends to open the exhaust port 161, allowing the gas inside the cuff to be discharged in the reverse direction through the bidirectional air passage 16. This design creatively uses a single bidirectional air passage 16 to achieve bidirectional airflow control, combined with a dynamic sealing structure, resulting in a significantly more compact overall size, higher reliability, and lower energy consumption compared to traditional methods. It effectively solves the problem of excessive size caused by the separation of pump and valve in traditional electronic blood pressure monitors.

[0049] In one embodiment of this utility model, such as Figure 4 As shown, the integrated gas path housing 1 includes a first housing 11, a second housing 13, and a third housing 15.

[0050] It should be noted that the first housing 11 and the second housing 13 are connected by a screw assembly to form the upper air chamber 12. The second housing 13 and the third housing 15 are connected by a screw assembly to form the lower air chamber 14; the bidirectional air passage 16 is provided above the upper air chamber 12. It should be understood that this modular design allows for individual repair or replacement of any malfunctioning part during use, thereby improving the flexibility of the device.

[0051] Among them, such as Figure 5 As shown, the top interior of the first housing 11 has an airflow guiding path 111; there are multiple airflow guiding paths 111, and each of the multiple airflow guiding paths 111 communicates with the bidirectional air passage 16, and each airflow guiding path 111 cooperates with the first one-way valve 21 to form part of the air intake passage A. This allows airflow to flow from the air intake passage A into the bidirectional air passage 16, and from the bidirectional air passage 16 to inflate the cuff.

[0052] In one embodiment of this utility model, such as Figure 4 , Figure 5 and Figure 6 As shown, the second housing 13 has a central hole 131 in the middle. The central hole 131 is located at the end of the airflow path of the bidirectional air passage 16, serving as a component of the air passage system and also functioning as an exhaust port 161. This integrated design optimizes the air passage structure, making the exhaust passage more compact and efficient.

[0053] like Figure 4As shown, the outer periphery of the central hole 131 has three through holes 132, which connect the upper air chamber 12 and the lower air chamber 14. The piston airbag component 2 has an airbag portion 22, which is formed by recessing inward from the surface of the piston airbag component 2. In this embodiment, the piston airbag component 2 is an elastic, non-rigid component. The number, shape, and size of the airbag portions 22 are adapted to the number, shape, and size of the through holes 132. The piston airbag component 2 is assembled on the second housing 13 to cover the through holes 132. The end of the airbag portion 22 enters from the side of the through hole 132 located in the upper air chamber 12 and protrudes from the side of the through hole 132 located in the lower air chamber 14, and is exposed in the lower air chamber 14. With this assembly, the piston airbag component 2 isolates the communication between the upper air chamber 12 and the lower air chamber 14. Furthermore, the shape of the piston airbag 2 is adapted to the shape of the connection between the first housing 11 and the second housing 13. When the piston airbag 2 is placed at this location, it can effectively ensure the sealing of the connection between the upper air chamber 12 and the lower air chamber 14, preventing gas leakage.

[0054] It should also be noted that, if Figure 3 As shown, the piston airbag component 2 is provided with a second one-way valve 23 and a through hole 24 corresponding to the number of airflow guiding paths 111. The second one-way valve 23 cooperates with the inner top surface of the first housing 11 to form a closed area, and multiple closed areas are located on the airflow path of the bidirectional air passage 16. The through hole 24 is coaxially connected to the central hole 131. This allows the gas flowing out of the bidirectional air passage 16 to pass through the through hole 24 and the central hole 131 along a predetermined path and then be discharged from the exhaust port 161 during exhaust.

[0055] The sealing elastic element 3 is located below the piston airbag component 2. For example... Figure 7 As shown, the sealing elastic element 3 includes an elastic layer 31 and a support layer 32; the elastic layer 31 wraps around the outer periphery of the support layer 32 to form an integral structure.

[0056] This structure helps solve problems of poor sealing effect and insufficient durability of the seal. In this embodiment, the elastic layer 31 provides good elastic deformation capability, and can deform under the compression of the actuator 43 to achieve a seal on the exhaust port 161; while the support layer 32 plays a supporting role, preventing the elastic layer 31 from deforming excessively or failing due to deformation during long-term use, thus ensuring the stability of the sealing structure. Through this composite structure of the elastic layer 31 and the support layer 32, a more reliable and durable sealing effect can be achieved.

[0057] The sealing elastic element 3 has a first protrusion 311 on the side facing the exhaust port 161, and the size of the first protrusion 311 is sufficient to block the exhaust port 161. Preferably, the first protrusion 311 is made of silicone rubber, and its diameter is about 0.5 mm larger than the diameter of the exhaust port 161. When the actuating component 43 compresses the sealing elastic element 3, the first protrusion 311 expands radially to seal the exhaust port 161.

[0058] When the actuating component 43 compresses the sealing elastic element 3, the first protrusion 311 precisely engages with the edge of the exhaust port 161 and generates radial elastic deformation, forming a dual sealing mechanism of radial and axial force. This effectively solves the technical problems of insufficient sealing pressure and slow response speed of traditional planar seals under frequent opening and closing conditions.

[0059] In this embodiment, the sealing elastic member 3 has a skirt portion 312 arranged radially along the outer periphery of the first protrusion 311; the thickness of the skirt portion 312 gradually increases from the end connected to the first protrusion 311 toward its free end.

[0060] When the actuating component 43 compresses the sealing elastic element 3, the first protrusion 311 undergoes radial deformation. Simultaneously, the skirt portion 312 with gradually varying thickness forms a gradient stress distribution through thickness changes. The thinner root ensures flexibility, while the thicker free end provides support. This effectively solves the problem of stress concentration leading to cracking when the sealing elastic element 3 undergoes repeated deformation.

[0061] In this embodiment, the bottom of the sealing elastic member 3 has a contact portion 33. Below the sealing elastic member 3 is the actuation component 43. The actuation component 43 includes a connector 431 and a mating member 432. The connector 431 is a cylindrical steel needle, one end of which is movably connected to the transmission member 42, and the other end is inserted into the mating member 432.

[0062] like Figure 8-2 As shown, the cross-section of the mating component 432 is a triangular structure, with an upwardly extending cylindrical mounting portion 4321 at each of the three vertices of the triangle. Each cylindrical mounting portion 4321 has an air inlet 4322. The three cylindrical mounting portions 4321 enclose a region in the middle that can accommodate the sealing elastic member 3. In the middle of the region, there is an upwardly protruding second protrusion 4323. When the sealing elastic member 3 is assembled in this region, the second protrusion 4323 is positioned directly opposite and in contact with the contact portion 33.

[0063] Below the execution component 43 is a transmission component 42, which includes a base 421 with a moving track 4211. In this embodiment, the base 421 is a cylindrical structure with a groove formed by indentation from its surface. The cross-sectional area of ​​the groove is in the shape of a racetrack, which is the moving track 4211.

[0064] like Figure 8-1 As shown, the bottom of the moving track 4211 has a ramp C, which gradually increases in height from left to right along the plane of the drawing. In use, when the connecting member 431 moves to the high point H of the ramp C, the connecting member 431 pushes the cylindrical assembly portion 4321 of the mating member 432 into the airbag portion 22 of the piston airbag member 2; when the connecting member 431 moves to the low point of the ramp C, the corresponding cylindrical assembly portion 4321 withdraws from the airbag portion 22.

[0065] In addition, such as Figure 8-2 As shown, the connector 431 described above is obliquely assembled in the moving track 4211 and forms an angle α at the connection with the moving track 4211. The angle α is preferably between 12° and 12.5°. It should be understood that this design is intended to ensure that when the connector 431 rotates, the mating part 432 to which it is inserted always has an undulating motion trajectory.

[0066] Below the transmission component 42 is the motor 41, which is connected to an external control circuit and provides a power source for the entire device. The third housing 15 mentioned above is connected to the housing of the motor 41 by screws and cooperates with the second housing 13 to form the lower air chamber 14. The sealing elastic element 3, the actuation component 43, and the transmission component 42 mentioned above are all disposed in the lower air chamber 14.

[0067] It should also be noted that, such as Figure 9 As shown, the outer bottom surface of the third housing 15 has an airflow channel 151, which connects the interior of the third housing 15 with the exterior. When the third housing 15 and the second housing 13 are assembled to form the lower air chamber 14, the airflow channel 151 connects the lower air chamber 14 with the outside.

[0068] In summary, combining Figure 10-1 and 10-2 10-3 Figure 11 As shown, the pump-valve integrated device of this technical solution has the following components arranged from top to bottom: integrated air circuit housing 1, piston airbag component 2, sealing elastic component 3, and power transmission actuator 4.

[0069] It is particularly important to note that, because the connector 431 is inclined to the base 421, and the other end of the connector 431 is fixedly connected to the mating part 432, the mating part 432 also has the same inclination angle relative to the base 421. This results in the cylindrical assembly 4321 having an inclination angle relative to the airbag part 22 in the vertical direction.

[0070] The specific work details are as follows:

[0071] When the motor 41 is working, since the motor 41 is pivotally connected to the base 421, the motor 41 can drive the base 421 to rotate 360° or swing left and right by 180°.

[0072] In applications involving continuous 360° rotation, the motor 41 provides rotational driving force to the base 421. When the device is started, the initial power output by the motor 41 drives the base 421 to begin rotating in a circle around its axis. The centrifugal force generated at this time causes the connector 431 to undergo a controllable centrifugal displacement, allowing the connector 431 to slide from the bottom of the ramp C to the highest point.

[0073] When the connector 431 is at the high point H of the slope C, as shown in FIG10, the second protrusion 4323 of the mating member 432 applies an upward compressive force to the contact portion 33 of the sealing elastic member 3, forcing the sealing elastic member 3 to undergo elastic deformation. This deformation is transmitted to the first protrusion 311, causing it to precisely embed into the exhaust port 161, thereby achieving a reliable seal of the exhaust port. This power transmission actuator 4 ensures that the device can achieve periodic air passage opening and closing control during rotation.

[0074] At the same time, as the motor 41 continues to operate, when the base 421 moves in a circular motion around the axis driven by the motor 41, the mating part 432 and the connecting part 431 also move in a circular motion around the axis of the base 421 driven by the base 421.

[0075] At this time, the cylindrical assembly part 4321, which is arranged circumferentially upwards on the mating part 432, rotates accordingly and sequentially approaches and inserts into the elastic airbag part 22. Figure 10-2 As shown; when one of the cylindrical assembly parts 4321 is inserted into and squeezes the airbag part 22, the airbag part 22 deforms and stores elastic potential energy. After the current cylindrical assembly part 4321 completes its action in the airbag part 22, the airbag part 22 uses its elastic potential energy to push the cylindrical assembly part 4321 out in an inclined direction.

[0076] It should be noted that although the rebound force of the airbag part 22 does indeed exert a downward component force on the cylindrical assembly part 4321, as long as the driving force of the motor 41 is strong enough, this component force is not enough to affect the stability of the overall pump-valve integrated device. On the contrary, the coordinated rotation of the mating part 432, the connecting part 431 and the base 421 makes the cylindrical assembly part 4321 more smoothly complete the "enter-exit" cycle in the airbag part 22.

[0077] In summary, the cylindrical mounting portion 4321 of the mating component 432 and the airbag portion 22 of the piston airbag component 2 together constitute a dynamic mating structure. Furthermore, when the cylindrical mounting portion 4321 is embedded inside the airbag portion 22, the air inlet 4322 communicates with the first one-way valve 21, together forming a key part of the air intake path A.

[0078] Meanwhile, during operation, the rotational motion of the mating component 432 within the lower air chamber 14 generates a negative pressure effect, causing the air pressure inside the chamber to be lower than the external atmospheric pressure. This drives external airflow to continuously flow into the lower air chamber 14 through the airflow channel 151. When the cylindrical assembly 4321 is pressed into the elastic airbag 22 during rotation, its trajectory forms a directional flow guide, directing the inhaled airflow into the airbag 22. Under the combined effect of pressure difference and mechanical motion, the airflow overcomes the opening resistance of the first one-way valve 21 via the air inlet 4322, ultimately completing the gas delivery process to the upper air chamber 12. This design, by cleverly combining the rotational negative pressure effect with the mechanical flow guide structure, achieves automatic gas intake and directional delivery, ensuring the continuous and stable operation of the system's airflow path.

[0079] Then, the gas in the upper air chamber 12, guided by the airflow guide path 111, converges into an airflow between the lower part of the bidirectional air passage 16 and the upper part of the central hole 131, and flows into the cuff from the bidirectional air passage 16 to inflate the cuff.

[0080] In a specific usage scenario, when the device continuously inflates the cuff, the motor 41 rotates at approximately 6000 rpm. When the air pressure reaches a preset pressure point, the external control circuit controls the motor 41 to reduce its speed to approximately 100 rpm or stop. The maintained voltage causes the connector 431 to remain at the highest point of the moving track 4211. At this time, the connector 431 remains at the high point H, both closing the air passage and maintaining the cuff air pressure.

[0081] However, as Figure 11As shown, when rapid venting is required after blood pressure measurement, the external control circuit cuts off the power supply to the motor 41, causing it to stop operating. The connector 431 loses its power at the high point of the slope C and slides down the inclined plane of the slope C to the low point. At this time, the sealing elastic member 3 also slides down, causing the first protrusion 311 to disengage from the vent 161. That is, the first protrusion 311 opens the central hole 131 of the second housing 13, thereby forming a complete venting passage B: the gas in the cuff sequentially enters the lower air chamber 14 through the bidirectional airway 16 and the central hole 131, and is finally rapidly discharged to the outside via the airflow channel 151. This design achieves the system's rapid pressure relief function, ensuring that the cuff pressure can be released promptly after measurement.

[0082] In addition, an electronic blood pressure monitor 100 is proposed, such as... Figure 12 and Figure 13 As shown, the device includes a housing 101, within which is an electronic control component 102 and an integrated pump-valve diaphragm air pump device 103, as described above, electrically connected to the electronic control component 102. This electronic blood pressure monitor 100 integrates inflation and deflation functions and has a compact structure, which helps save space.

[0083] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0084] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0085] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0087] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0088] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A diaphragm air pump device with integrated pump and valve, characterized in that... include: An integrated air passage housing has an internally connected upper and lower air chamber, and a bidirectional air passage connected to the upper air chamber. A piston airbag is disposed in the airflow path of the bidirectional air passage, and the piston airbag has a first one-way valve for allowing airflow to enter the bidirectional air passage in one direction. A sealing elastic element is provided at the exhaust port of the bidirectional air passage; The power transmission actuator includes a motor, which is connected to a transmission component, and an actuator is connected to the other end of the transmission component. The actuator is disposed in the lower air chamber and has an air inlet that connects the upper air chamber and the lower air chamber; When the motor drives the transmission component to rotate, the transmission component drives the actuation component to rise, and the actuation component squeezes the sealing elastic element to deform and seal the exhaust port. The bidirectional air passage, the first one-way valve, and the air inlet cooperate to form an air intake path. When the motor stops driving, the sealing elastic element rebounds, causing the actuator to descend, the exhaust port to open, and the bidirectional air passage to serve as the exhaust passage.

2. The pump-valve integrated diaphragm air pump device according to claim 1, characterized in that: The sealing elastic element includes an elastic layer and a support layer; The elastic layer wraps around the outer periphery of the support layer to form an integral structure.

3. The pump-valve integrated diaphragm air pump device according to claim 2, characterized in that: The sealing elastic member has a first protrusion on the side facing the exhaust port. The cross-sectional shape of the first protrusion matches the edge of the exhaust port. When the actuating component squeezes the sealing elastic member, the first protrusion expands radially to seal the exhaust port.

4. The pump-valve integrated diaphragm air pump device according to claim 3, characterized in that: The sealing elastic member has a skirt portion arranged radially along the outer periphery of the first protrusion; The thickness of the skirt portion gradually increases from the end connected to the first protrusion toward its free end.

5. The pump-valve integrated diaphragm air pump device according to claim 3, characterized in that: The transmission component includes a base, and the base has a moving track; The execution component includes a connector and a mating component connected to the connector; The connector is obliquely assembled in the moving track and forms an angle α at the connection with the moving track.

6. The pump-valve integrated diaphragm air pump device according to claim 5, characterized in that: The mating component also has a cylindrical assembly part, on which the air inlet is provided; The piston airbag component also includes an airbag portion, and the first one-way valve is located in the airbag portion; The fitting is embedded in the airbag portion, such that the air inlet is connected to the first one-way valve to form part of the air intake path.

7. The pump-valve integrated diaphragm air pump device according to claim 5, characterized in that: The mating component has a second protrusion on the side facing the sealing elastic element; The sealing elastic member that mates with the second protrusion has a contact portion; When the motor rotates, the transmission component drives the actuator to rise. At this time, the second protrusion presses against the contact portion, causing the first protrusion to undergo elastic deformation to seal the exhaust port.

8. The pump-valve integrated diaphragm air pump device according to claim 1, characterized in that: The integrated gas path housing includes a first housing and a second housing, which cooperate to form the upper air chamber; It also includes a third housing, the second housing and the third housing together forming the lower air chamber; The second housing has a through hole that connects the upper air chamber and the lower air chamber; The piston airbag component is on the second housing to cover the through hole.

9. A diaphragm air pump device with integrated pump and valve according to claim 8, characterized in that: The top of the first housing has an airflow guiding path; The airflow guiding path cooperates with the first one-way valve to form part of the intake air path.

10. An electronic blood pressure monitor, characterized in that: The device includes a housing, wherein the housing contains an electronic control component and an integrated pump and valve diaphragm air pump device as described in any one of claims 1-9, which is electrically connected to the electronic control component.

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