Sphygmomanometer

Abstract

The application discloses a sphygmomanometer, which comprises a sphygmomanometer body, a display screen and a retaining mechanism. The sphygmomanometer body is provided with a mounting bracket; the display screen is movably connected to the mounting bracket, so that the display screen is in a first position or a second position; wherein the display screen in the first position is arranged at an angle with the display screen in the second position; the retaining mechanism is arranged on the mounting bracket and / or the display screen, and simultaneously acts between the mounting bracket and the display screen, so as to provide a retaining force when the display screen is in the second position. Thus, the sphygmomanometer can improve the viewing comfort and reading accuracy of users in different use scenarios.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a blood pressure monitor. Background Technology

[0002] With the increasing demand for health monitoring, electronic blood pressure monitors, as commonly used home medical devices, are receiving more and more attention for their human-computer interaction performance. Currently, most electronic blood pressure monitors on the market are equipped with a display screen to show real-time measurement data such as blood pressure and heart rate. However, the display screen in existing technology is usually directly fixed to the monitor body, and its viewing angle is not adjustable. In actual use, users often find it difficult to obtain an ideal viewing angle due to differences in height, posture, and placement (such as on a desktop, bedside table, or handheld), especially in situations with strong light reflection or oblique viewing angles, which can easily lead to difficulty in reading the reading or even misinterpretation. Summary of the Invention

[0003] This application provides a blood pressure monitor that can solve at least one of the above-mentioned technical problems.

[0004] This application provides a blood pressure monitor, including: A blood pressure monitor body, wherein the blood pressure monitor body is provided with a mounting bracket; A display screen is movably connected to the mounting bracket to position the display screen in a first position or a second position; wherein the display screen in the first position and the display screen in the second position are arranged at an angle; and A retaining mechanism is disposed on the mounting bracket and / or the display screen, and the retaining mechanism acts simultaneously between the mounting bracket and the display screen to provide a retaining force when the display screen is in the second position.

[0005] In some embodiments, the retaining mechanism includes an elastic drive mechanism movably disposed on the mounting bracket to allow the elastic drive mechanism to be in a pre-compressed state or a released state. When the elastic drive mechanism is in the pre-compression state and the display screen moves relative to the mounting bracket under the action of an external force, the elastic drive mechanism can switch from the pre-compression state to the release state, so that the elastic drive mechanism can push the display screen from the first position to the second position.

[0006] In some embodiments, the elastic drive mechanism includes: A fastener, the fastener being connected to the mounting bracket; A movable component, which is movably disposed on the mounting bracket; An elastic element extends along the movement path of the movable element and abuts between the fixed element and the movable element; When the elastic drive mechanism is in the pre-compression state, the elastic element stores elastic potential energy; when the elastic drive mechanism switches from the pre-compression state to the release state, the elastic element releases elastic potential energy, so that the movable element pushes the display screen from the first position to the second position.

[0007] In some embodiments, the fixed member and the movable member cooperate to form a receiving cavity, the receiving cavity extending along the movement path of the movable member, and the elastic member located within the receiving cavity.

[0008] In some embodiments, the display screen is provided with a mating component, the movable component is provided with a first contact surface, and the mating component is provided with a second contact surface; wherein, when the display screen is in the first position, the first contact surface and the second contact surface are set at an angle; when the display screen is in the second position, the first contact surface and the second contact surface are in contact.

[0009] In some embodiments, the display screen is provided with a connecting shaft structure, and the mounting bracket is provided with a guide hole structure; the connecting shaft structure is movably inserted through the guide hole structure.

[0010] In some embodiments, the guide hole structure includes a rotating hole segment and a sliding hole segment, the sliding hole segment being connected to the rotating hole segment, and the rotating hole segment and the sliding hole segment extending along the movement trajectory of the display screen; The connecting shaft structure can be rotatably engaged with the rotating hole section; the connecting shaft structure can be slidably engaged with the sliding hole section.

[0011] In some embodiments, the outer peripheral surface of the connecting shaft structure is at least partially arc-shaped, and the connecting shaft structure rotatably engages with the rotating hole segment through the arc-shaped surface; And / or, the connecting shaft structure is rotatably inserted into the guide hole structure.

[0012] In some embodiments, the mounting bracket is provided with a mounting groove; wherein, when the display screen is in the first position, the display screen is located in the mounting groove, and the display screen is spaced apart from the bottom of the mounting groove; when the display screen is in the second position, one end of the display screen protrudes out of the mounting groove.

[0013] In some embodiments, the holding mechanism includes an elastic positioning mechanism disposed on the display screen, and the mounting bracket is provided with a first groove and a second groove distributed along the movement trajectory of the display screen; Specifically, when the display screen is in the first position, a portion of the elastic positioning mechanism is located within the first groove; when the display screen is in the second position, a portion of the elastic positioning mechanism is located within the second groove.

[0014] The blood pressure monitor provided in this application includes a monitor body, a display screen, and a holding mechanism. The monitor body has a mounting bracket; the display screen is movably connected to the mounting bracket to position it in a first position or a second position; wherein the display screen in the first position and the display screen in the second position are set at an angle; the holding mechanism is disposed on the mounting bracket and / or the display screen, and simultaneously acts between the mounting bracket and the display screen to provide a holding force when the display screen is in the second position. Thus, because the display screen is movably connected to the mounting bracket and can switch between the first and second positions, with the two positions set at an angle, users can flexibly adjust the viewing angle of the display screen according to their height, posture, or usage environment (such as desktop, bedside, handheld, etc.), avoiding problems such as viewing deviation and glare interference caused by a fixed viewing angle, thereby significantly improving user viewing comfort and reading accuracy in different usage scenarios. Furthermore, the holding mechanism must functionally act simultaneously between the mounting bracket and the display screen, establishing a stable connection through mechanical cooperation or elastic force transmission. When the display screen is switched to the second position, i.e., the tilted use state, the holding mechanism can provide sufficient holding force to resist the interference torque caused by the display screen's own weight, slight external touches, or changes in the device's placement angle, ensuring that the display screen is stably maintained at the preset viewing angle, and avoiding the impact on the accuracy and comfort of the user's blood pressure measurement data due to accidental drop or shaking. Attached Figure Description

[0015] 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, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a blood pressure monitor provided in an embodiment of this application.

[0017] Figure 2 for Figure 1 A schematic diagram of the assembly of the display screen and the mounting bracket.

[0018] Figure 3 for Figure 2 A schematic diagram showing the disassembled structure of the display screen and mounting bracket.

[0019] Figure 4 for Figure 2 A cross-sectional view of the display screen and mounting bracket.

[0020] Figure 5 for Figure 3 A schematic diagram of the mounting bracket.

[0021] Figure 6 for Figure 3 A schematic diagram of the connecting shaft structure.

[0022] Figure 7 This is a schematic diagram of the structure of a blood pressure monitor provided in another embodiment of this application.

[0023] Figure 8 for Figure 7 A schematic diagram of the assembly of the display screen and the mounting bracket.

[0024] Figure 9 for Figure 7 A cross-sectional view of the display screen and mounting bracket.

[0025] Figure 10 for Figure 8 A schematic diagram showing the disassembled structure of the display screen and mounting bracket.

[0026] Figure 11 This is a schematic diagram of the structure of the display screen and mounting bracket provided in another embodiment of this application.

[0027] Figure 12 for Figure 11 A schematic diagram showing the disassembled structure of the display screen and mounting bracket.

[0028] Figure 13 This is a schematic diagram of the structure of the display screen and mounting bracket provided in another embodiment of this application.

[0029] Explanation of icon numbers: 10. Blood pressure monitor; 100. Blood pressure monitor body; 110. Mounting bracket; 111. Mounting groove; 120. Guide hole structure; 121. Rotating hole section; 122. Sliding hole section; 130. Measuring arm cylinder; 140. Base; 200. Display screen; 210. Connecting shaft structure; 211. Arc-shaped surface; 212. Flat surface; 213. Fixed section; 214. Connecting section; 215. Foolproof structure; 300. Elastic drive mechanism; 310. Fixing component; 320. Moving component; 321. First contact surface; 330. Elastic component; 340. Receiving cavity; 350. Mating component; 351. Second contact surface; 400. Elastic positioning mechanism; The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0031] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please see Figure 1 This embodiment provides a blood pressure monitor 10. The blood pressure monitor 10 includes a blood pressure monitor body 100 and a display screen 200. The blood pressure monitor body 100 is the main structure constituting the blood pressure monitor 10, and integrates an air pump, an exhaust valve, a pressure sensor, a main control circuit board, a power module, and a measuring arm cylinder 130 for wrapping the user's upper arm, for automatically collecting, processing, and storing blood pressure and heart rate data.

[0035] The blood pressure monitor body 100 is provided with a mounting bracket 110. The mounting bracket 110 can be a separately molded plastic or metal component, which is fixed to the top or side of the blood pressure monitor body 100 by screws, clips, or adhesive; or it can be integrally injection molded with the outer shell of the blood pressure monitor body 100 to form a continuous whole. The main function of the mounting bracket 110 is to provide movable support for the display screen 200 and limit its movement trajectory and extreme positions.

[0036] The display screen 200 is movably connected to the mounting bracket 110, allowing the display screen 200 to be in a first position or a second position. "Movably connected" means that the display screen 200 and the mounting bracket 110 are not fixedly connected, but rather have a degree of freedom of relative movement. This connection method can be, for example, a hinge connection (i.e., rotation is achieved through the engagement of a pin and a hole), a sliding connection (sliding is achieved through the engagement of a guide rail and a slider), a linkage structure, or a combination of multiple connection methods, as long as it allows for an angle change of the display screen 200 relative to the mounting bracket 110. Through this movable connection, the user can manually or automatically adjust the posture of the display screen 200 according to actual usage needs.

[0037] The display screen 200 in the first position and the display screen 200 in the second position are set at an angle. For example... Figure 1 and Figure 2 As shown, when the display screen 200 is in the first position, the display surface of the display screen 200 is parallel or flush with the surface of the mounting bracket 110, or the display screen 200 is entirely housed within the mounting bracket 110, resulting in a flat and compact product appearance, facilitating storage and transportation. At this time, the angle between the display screen 200 and the mounting bracket 110 is approximately 0 degrees. Figure 7 and Figure 8 As shown, when the display screen 200 is in the second position, one end of the display screen 200 is tilted upwards, forming a certain angle between its display surface and the surface of the mounting bracket 110. This angle can be greater than 0 degrees and less than or equal to 90 degrees, and can be adjusted according to actual conditions without limitation. This "angle setting" design is to adapt to users of different heights or different usage scenarios. For example, when the user is standing to measure, the tilted display screen 200 can face the user's line of sight, reducing glare and improving the convenience of reading; while when the user is sitting to measure, the optimal viewing angle can be obtained by adjusting the tilt angle (for example, this angle can be greater than 0 degrees and less than or equal to 20 degrees). It should be understood that the specific value of the angle is not limited to the above range and can be optimized according to ergonomic principles. Through the above solution, the blood pressure monitor 10 of this embodiment realizes the switching between the flat and tilted states of the display screen 200, solving the problem of inconvenient reading caused by the fixed screen viewing angle in the prior art, and improving the user experience.

[0038] The display screen 200 serves as the core human-machine interface, used to display real-time systolic blood pressure, diastolic blood pressure, heart rate, measurement progress, battery level, and abnormal prompts (such as arrhythmia or motion artifacts). In some embodiments, the display screen 200 also supports touch operation or, in conjunction with physical buttons, enables functions such as historical record querying, time setting, and Bluetooth pairing, enhancing the device's intelligence level.

[0039] To ensure signal transmission and power supply, the display screen 200 establishes an electrical connection with the main control circuit board inside the blood pressure monitor body 100 via a flexible circuit board. One end of the flexible circuit board is connected to the drive module of the display screen 200, and the other end passes through a pre-reserved wiring channel inside the mounting bracket 110, connecting to the display interface of the main control circuit board. This wiring path remains slack and has a sufficient bending radius during the movement of the display screen 200, avoiding fatigue breakage of the lines due to repeated opening and closing. A cable limiting structure can also be set inside the mounting bracket 110 to prevent displacement or wear of the flexible circuit board, ensuring long-term stable and reliable electrical connection.

[0040] This application significantly expands the effective viewing angle range by movably connecting the display screen 200 to the mounting bracket 110, allowing it to switch between a first position and a second position, with the two positions set at an angle. Users can flexibly adjust the screen orientation according to their own eye level or the device's placement position (such as a desktop, knee, or bedside table), avoiding glare, blurring, or data misreading caused by viewing angle deviation, and improving the accuracy of measurement results.

[0041] In some embodiments, the display screen 200 is provided with a first connecting structure, and the mounting bracket 110 is provided with a second connecting structure. The second connecting structure and the first connecting structure are movably coupled to allow the display screen 200 to switch between a first position and a second position along a preset path. Specifically, the first connecting structure can be disposed on the back or side of the display screen 200, and the second connecting structure is correspondingly disposed on the mounting bracket 110. The coupling between the two can take various forms, such as the coupling of a slider and a slide rail, or the coupling of a protrusion and a groove, as long as it can achieve the guidance of relative movement.

[0042] Furthermore, the first and second connecting structures cooperate to form a movable connecting pair, guiding the display screen 200 to move along a preset path. This preset path is precisely designed to ensure smooth movement and accurate positioning of the screen during posture transitions, without any shaking or jamming.

[0043] Please see Figures 2 to 6 In some embodiments, one of the first connecting structure and the second connecting structure is a connecting shaft structure 210 and the other is a guide hole structure 120. The connecting shaft structure 210 is movably inserted into the guide hole structure 120 to form a combined sliding and rotating kinematic pair.

[0044] In this embodiment, the display screen 200 is provided with a connecting shaft structure 210, and the mounting bracket 110 is provided with a guide hole structure 120. The connecting shaft structure 210 is inserted into the guide hole structure 120 and can move or rotate along the extension direction of the groove. This shaft-groove fit structure is simple and compact, easy to manufacture, and can withstand large loads, ensuring the structural stability of the screen during frequent opening and closing. It should be understood that the positions of the connecting shaft structure 210 and the guide hole structure 120 can be interchanged. For example, the connecting shaft can be set on the bracket, while the guide groove can be set on the screen, which can also achieve the purpose of this application. In other embodiments, the mounting bracket 110 can be provided with a connecting shaft structure 210, and the display screen 200 can be provided with a connecting shaft structure 210. For specific implementation, please refer to the above embodiment.

[0045] Please see Figure 2 , Figure 5 and Figure 8 In some embodiments, the guide hole structure 120 includes a rotating hole segment 121 and a sliding hole segment 122, the sliding hole segment 122 being connected to the rotating hole segment 121, and the rotating hole segment 121 and the sliding hole segment 122 extending along the movement trajectory of the display screen 200 (the movement trajectory of the display screen 200 can be designed according to the movement requirements of the display screen 200). For example... Figure 2 and Figure 5 As shown, the connecting shaft structure 210 can rotatably engage with the rotating hole section 121 to allow the display screen 200 to switch between a first position and a second position. Figure 5 and Figure 8 As shown, the connecting shaft structure 210 can slide with the sliding hole section 122 to change the position of the display screen 200 which is in an inclined position.

[0046] The rotating hole section 121 and the sliding hole section 122 are interconnected and extend continuously along the movement trajectory of the display screen 200, so that the connecting shaft structure 210 can switch between rotation and translation modes in a single guide groove, thereby realizing the whole process control of the display screen 200 from storage to unfolding and then to optimizing the viewing position.

[0047] The rotating perforation segment 121 extends in an arc shape. When the user presses the front end of the display screen 200 to initiate the unfolding action, the connecting shaft structure 210 first moves along an arc trajectory within the rotating perforation segment 121. This movement causes the entire display screen 200 to lift upwards around a virtual rotation center, completing the initial posture transition from the first position to the second position. The arc length and radius of the rotating perforation segment 121 are ergonomically optimized, for example, allowing the screen to be raised at an angle typically between 20 degrees and 60 degrees to provide a comfortable visual reading experience.

[0048] The sliding hole segment 122 extends forward and upward or horizontally from the end of the rotating hole segment 121, with its path being a straight line or approximately a straight line. After the connecting shaft structure 210 completes its rotational movement within the rotating hole segment 121, it immediately enters the sliding hole segment 122 and continues to slide along its length. This sliding process causes the display screen 200, which is in an inclined position, to extend a certain distance, for example, 10 mm to 30 mm, in the direction of extension of the sliding hole segment 122, thereby bringing the screen closer to the user's line of sight and further improving visibility, especially suitable for usage scenarios where the user sits at a low posture or the device is placed far away.

[0049] The transition area between the rotating hole section 121 and the sliding hole section 122 is connected with smooth rounded corners to avoid jamming or impact noise caused by sudden changes in the path during the movement of the connecting shaft structure 210. This helps to ensure that the connecting shaft structure 210 can pass smoothly under both high-speed and low-speed operation, and improves the consistency and reliability of the operating feel.

[0050] The connecting shaft structure 210 primarily engages in rotational fitting within the rotating hole section 121, with its outer circumferential surface maintaining rolling or sliding contact with the groove wall to transmit torque and restrict radial displacement. Within the sliding hole section 122, it primarily engages in linear sliding fitting, allowing the connecting shaft structure 210 to move freely along the length of the sliding hole section 122 while its vertical offset is constrained by the groove wall. The synergistic effect of these two fitting modes enables the display screen 200 to perform both angle adjustments and fine-tuning of its position, significantly enhancing the flexibility and adaptability of human-computer interaction.

[0051] In some embodiments, the end of the sliding hole segment 122 is provided with a positioning recess or an elastic latch structure. When the connecting shaft structure 210 slides to this position, it will fall into the recess or trigger the latch, creating a slight "click" sensation to indicate to the user that the display screen 200 has been fully unfolded. This positioning structure also prevents the screen from accidentally retracting due to vibration or accidental touch during use, improving stability. Correspondingly, when the user presses the back of the screen or applies a reverse force, the connecting shaft structure 210 can overcome the positioning resistance, return along the original path, and finally reset to the first position.

[0052] In some embodiments, the outer peripheral surface of the connecting shaft structure 210 is at least partially an arc-shaped surface 211. The connecting shaft structure 210 is rotatably engaged with the rotating hole section 121 through the arc-shaped surface 211 to ensure that the connecting shaft structure 210 can rotate smoothly within the rotating hole section 121.

[0053] The curved surface 211 serves as the core functional area for the connection between the connecting shaft structure 210 and the rotating hole section 121 on the mounting bracket 110. When the display screen 200 is in the process of angle adjustment, the connecting shaft structure 210 forms a continuous curved surface contact with the inner wall of the rotating hole section 121 through the curved surface 211. This curved surface contact method can convert sliding friction into rolling friction or low-resistance sliding friction, significantly reducing the coefficient of friction of the connecting shaft structure 210 during rotation. The radius of curvature of the curved surface 211 is precisely designed to maintain a high degree of matching with the inner diameter of the rotating hole section 121, ensuring that the connecting shaft structure 210 experiences uniform force and smooth movement during rotation. This effectively avoids problems such as jamming, abnormal noise, or accelerated wear caused by uneven gaps or localized stress concentration, thereby improving the operational feel and mechanical durability of the display screen 200 angle adjustment.

[0054] When the connecting shaft structure 210 engages with the rotating hole section 121, the arc-shaped surface 211 forms a continuous curved surface contact with the inner wall of the rotating hole section 121. This contact method effectively reduces frictional resistance, allowing the connecting shaft structure 210 to rotate smoothly, thereby driving the display screen 200 to complete angle adjustment. The radius of curvature of the arc-shaped surface 211 is matched with the inner diameter of the rotating hole section 121, ensuring uniform gap and smooth movement during rotation, avoiding shaking or jamming.

[0055] Please see Figures 3 to 6 In some embodiments, the outer peripheral surface of the connecting shaft structure 210 is further provided with a plane 212, which is adjacent to the arc-shaped surface 211. The arc-shaped surface 211 and the plane 212 are located on opposite sides of the connecting shaft structure 210. That is, the arc-shaped surface 211 and the plane 212 occupy two opposite areas in the circumferential direction of the connecting shaft structure 210, and are connected to each other by a transition surface or a right-angled edge.

[0056] The cross-sectional profile of the connecting shaft structure 210 is approximately semi-circular, combining a smooth transition area and a flat support area, enabling it to achieve rotational and sliding guiding functions in different mating hole sections.

[0057] Meanwhile, plane 212 is located on the connecting shaft structure 210, forming a partial fit with the corresponding hole wall of the rotating hole section 121. Although plane 212 does not participate in the main rotational motion, it can provide additional supporting reaction force under stress, limiting the displacement of the connecting shaft structure 210 in the direction perpendicular to the rotation axis, thereby significantly improving the structural stability during rotation. Especially when the display screen 200 is in the second position and bears its own weight or external touch, the contact between plane 212 and the hole wall can effectively suppress swaying or jitter.

[0058] When the connecting shaft structure 210 enters and engages with the sliding hole section 122, its operating mode changes. At this time, due to its curvature, the arc-shaped surface 211 only forms line contact or small-area point contact with the hole wall of the sliding hole section 122, significantly reducing the contact area and thus reducing sliding resistance, allowing the connecting shaft structure 210 to move smoothly along the axial direction of the sliding hole section 122. This low-friction design helps users complete the screen unfolding or folding actions with less operating force, improving the user experience.

[0059] During sliding, the plane 212 typically remains parallel to and in contact with one side wall of the sliding hole section 122, or only slightly contacts it at specific stroke positions. Its main function is to maintain the orientation of the connecting shaft structure 210, preventing unnecessary rotation or skew during sliding. In other embodiments, the surface of the plane 212 is provided with micro-textures or a lubricating coating to further control the coefficient of sliding friction, balancing guiding accuracy and operational smoothness.

[0060] Please see Figures 11 to 13 In some embodiments, the connecting shaft structure 210 is rotatably disposed within the guide hole structure 120. Specifically, the connecting shaft structure 210 is rotatably disposed within the guide hole structure 120, constituting a movable connection method primarily based on rotational motion. This connection method allows the display screen 200 to rotate relative to the mounting bracket 110 about the central axis of the connecting shaft structure 210, thereby achieving angular adjustment from a first position to a second position.

[0061] The inner wall contour of the guide hole structure 120 matches the outer peripheral surface of the connecting shaft structure 210, providing stable rotational support for the connecting shaft structure 210. During rotation, the outer surface of the connecting shaft structure 210 maintains continuous contact with the inner wall of the guide hole structure 120, transmitting torque and limiting radial displacement, ensuring that the display screen 200 maintains a stable and wobbly posture during rotation. This rotational fit structure is simple and easy to assemble, while also possessing good load-bearing capacity and durability, making it suitable for applications requiring frequent opening and closing.

[0062] The structural design of the connecting shaft structure 210 can have various options. For example, the cross-section of the connecting shaft structure 210 can be circular or nearly circular, and its outer circumference can be precision machined to achieve high roundness and surface finish. The guide hole structure 120 is correspondingly designed as a cylindrical through hole or blind hole, with the hole diameter forming an appropriate sliding or clearance fit with the outer diameter of the connecting shaft structure 210. This fit tolerance is optimized to ensure smooth rotation while effectively controlling the assembly clearance of the display screen 200, avoiding abnormal noise or visual jitter caused by loosening.

[0063] For example, the outer circumferential surface of the connecting shaft structure 210 is provided with an arc-shaped surface 211 and a flat surface 212. The arc-shaped surface 211 is used to form a low-friction rotational contact with the inner wall of the guide hole structure 120, while the flat surface 212 is used to provide additional positioning or anti-rotation functions. When the connecting shaft structure 210 rotates in the guide hole structure 120, the arc-shaped surface 211 undertakes the main rotational guiding role, while the flat surface 212 can fit against a local flat surface 212 area of ​​the guide hole structure 120 at a specific angle to form an auxiliary limit, preventing the display screen 200 from excessively rotating or undergoing unexpected slight deflection during use.

[0064] Please see Figure 3 and Figure 6 In some embodiments, the display screen 200 is provided with a connecting shaft structure 210, which includes a fixed section 213 and a connecting section 214, which are connected sequentially along the axial direction to form an integral shaft or are combined into a whole by fastening.

[0065] The fixing section 213 is connected to the display screen 200, and the connecting section 214 is movably fitted with the guide hole structure 120. The fixing section 213 is embedded in the mounting hole of the back plate of the display screen 200, and its outer contour matches the shape of the mounting hole, typically being cylindrical, polygonal, or an irregularly shaped cross-section with anti-rotation flattening. The fixing section 213 is firmly connected to the display screen 200 by means of interference fit, snap locking, ultrasonic welding, or screw fastening, ensuring that it will not loosen or fall off during repeated opening and closing. In other embodiments, the end of the fixing section 213 is also provided with an annular flange or radial boss for abutting against the inner wall surface of the display screen 200 housing, providing axial restraint and preventing the connecting shaft structure 210 from retracting inward under force.

[0066] The connecting section 214 extends outward from the fixed section 213, with the end of the connecting section 214 furthest from the fixed section 213 penetrating into the guide hole structure 120. The surface of the connecting section 214 is precision-machined, exhibiting high roundness and surface finish to ensure low resistance and low noise when sliding or rotating within the guide hole structure 120. The length of the connecting section 214 is optimized based on the depth of the guide hole structure 120, ensuring sufficient mating length to maintain motion stability while avoiding excessive length that could lead to assembly difficulties or stress concentration.

[0067] A transition region is provided between the fixed section 213 and the connecting section 214. This transition region adopts a rounded corner or conical surface design to effectively alleviate stress concentration at the junction and improve the fatigue resistance of the connecting shaft structure 210. In embodiments using plastic injection molding, the transition region also improves melt flow, reduces shrinkage marks and bubbles, and increases product yield. If the connecting shaft structure 210 is made of metal, the transition region can be precisely controlled in terms of geometry through turning or grinding processes to ensure mechanical properties and appearance quality.

[0068] In some embodiments, the display screen 200 has a set of the aforementioned connecting shaft structures 210 on each side along its width direction. The two sets of structures are highly consistent in terms of geometric dimensions, material properties, and assembly methods, ensuring that the display screen 200 is subjected to balanced forces and maintains a stable posture during movement. If one side of the connecting shaft structure 210 malfunctions, the other side can still provide basic support, preventing the screen from suddenly collapsing and improving safety.

[0069] In some embodiments, the connecting shaft structure 210 is further provided with a foolproof structure 215, which is located at the end of the connecting section 214 away from the fixed section 213, i.e., at the free end of the connecting shaft structure 210. The main function of the foolproof structure 215 is to prevent the connecting shaft structure 210 from being inserted into the guide hole structure 120 in the wrong direction or position during assembly, thereby avoiding functional failure, structural interference, or appearance damage caused by misassembly.

[0070] The specific forms of the error-proof structure 215 include, but are not limited to, asymmetrical protrusions, eccentric steps, locally flattened areas, polygonal cross-sections, or combined geometric features. For example, one end of the connecting section 214 has an axially extending flat surface 212, while the other side maintains a cylindrical curved surface, forming a D-shaped cross-sectional profile. This flat surface 212 precisely matches the corresponding notch at the entrance of the guide hole structure 120, allowing the connecting shaft structure 210 to pass smoothly through the slot and complete assembly only when inserted in the correct orientation. If the operator inserts the connecting shaft structure 210 in the opposite direction, the flat surface 212 will interfere with the solid wall of the guide hole structure 120, preventing it from being pushed forward and thus providing a visual indication of an assembly error.

[0071] For example, the error-proof structure 215 is a radial protrusion or locating pin located at the end of the connecting section 214. This protrusion is offset from the central axis of the connecting shaft structure 210, and its position, size, and shape are specially designed to align only with specific clearance cavities or guide channels inside the guide hole structure 120. This design not only prevents directional errors but also provides tactile feedback or a slight locking sensation when assembled, improving assembly accuracy and efficiency.

[0072] The foolproof structure 215 is typically integrally molded with the connecting section 214. When the connecting shaft structure 210 is made of engineering plastics (such as POM, PA66, or PC), the foolproof structure 215 can be directly formed by precision injection molding without subsequent processing; when made of metal materials (such as stainless steel or aluminum alloy), the foolproof structure 215 can be machined by turning, milling, or stamping. Regardless of the material and process used, the edges of the foolproof structure 215 are chamfered or rounded to prevent scratching the inner wall of the guide hole structure 120 or the operator's fingers during assembly or movement.

[0073] The foolproof structure 215 also indirectly improves the maintainability and repairability of the product. When replacing the display screen 200 or the connecting shaft structure 210 after-sales service, maintenance personnel do not need to rely on additional markings or drawings; they can quickly determine the correct installation direction based solely on the physical characteristics of the foolproof structure 215, reducing the rate of human error and shortening maintenance time.

[0074] In some embodiments, there are multiple connecting shaft structures 210 and multiple guide hole structures 120, with each guide hole structure 120 corresponding to one connecting shaft structure 210, forming a multi-point support and coordinated motion mechanical linkage system. This configuration significantly improves the stability, balance, and load-bearing capacity of the display screen 200 during posture switching, effectively preventing problems such as shaking, tilting, or unilateral overload during use.

[0075] The display screen 200 has guide hole structures 120 on both sides along its width direction. Specifically, a connecting shaft structure 210 is provided on the left side of the display screen 200, and another connecting shaft structure 210 is symmetrically provided on the right side of the display screen 200. Correspondingly, a connecting shaft structure 210 is provided on the left and right edges of the mounting bracket 110, and the two connecting shaft structures 210 are synchronously embedded in the corresponding guide hole structures 120 and move synchronously along the movement trajectory of the display screen 200. This bilateral symmetrical layout ensures that the display screen 200 remains horizontally aligned when switching from the first position to the second position, avoiding twisting or jamming caused by unilateral driving.

[0076] Each guide hole structure 120 is independently formed on the wall of the mounting bracket 110. The extension trajectory, groove width, groove depth and surface treatment of the guide hole structure 120 are all highly consistent to ensure synchronous movement on the left and right sides.

[0077] Each connecting shaft structure 210 is fixed to the mounting bases on the left and right ends of the back of the display screen 200. The two connecting shaft structures 210 are completely identical in terms of geometry, material properties, surface roughness, and functional features (such as the foolproof structure 215, the arc surface 211 / flat surface 212 design, etc.), achieving mirror symmetry. When the user operates the display screen 200 to unfold, the connecting shaft structures 210 on the left and right sides simultaneously complete a combined rotation and sliding motion in their respective guide hole structures 120, so that the screen is smoothly lifted and moved forward, with no obvious difference in resistance or abnormal noise throughout the process.

[0078] The coordinated operation of multiple connecting shaft structures 210 and guide hole structures 120 enhances the redundancy and safety of the overall structure. Even if one side of the connecting shaft structure 210 experiences slight wear due to long-term use, the other side can still provide effective support, preventing the display screen 200 from suddenly collapsing or tilting unbalanced, thus ensuring user safety. Furthermore, in the event of a drop or impact, the dual-sided support structure can distribute the impact load, reducing the risk of single-point failure.

[0079] Please see Figure 4 In some embodiments, the mounting bracket 110 is provided with a mounting groove 111; wherein, when the display screen 200 is in the first position, the display screen 200 is located in the mounting groove 111, and the display screen 200 and the bottom of the mounting groove 111 are spaced apart; when the display screen 200 is in the second position, one end of the display screen 200 protrudes out of the mounting groove 111.

[0080] The mounting groove 111 is a recessed area formed on the upper surface of the mounting bracket 110. Its outline matches the shape of the display screen 200 and is used to accommodate and position the display screen 200 in a specific state. The depth, width, and chamfered edges of the mounting groove 111 are precisely designed to ensure smooth passage of the display screen 200 during movement, while also providing necessary limiting and protection functions.

[0081] When the display screen 200 is in the first position, it is fully embedded inside the mounting slot 111. At this time, the front of the display screen 200 faces upwards, and is basically flush with or slightly lower than the upper surface of the mounting bracket 110, creating a clean and integrated appearance. It is worth noting that a predetermined gap is maintained between the back of the display screen 200 and the bottom of the mounting slot 111, i.e., the two are spaced apart, thus facilitating the rotation of the display screen 200 relative to the mounting bracket 110.

[0082] When the display screen 200 switches to the second position, it rotates around the connecting shaft structure 210 and slides along the guide hole structure 120, ultimately causing one end of the display screen 200 to protrude outside the mounting groove 111. This allows the display screen 200 to be set at approximately an angle relative to the mounting bracket 110. The protruding portion typically occupies one-third to one-half of the length of the display screen 200, allowing the screen to face the user at an angle of 15 to 45 degrees for easy reading of blood pressure measurement results. At this time, the other end of the display screen 200 remains within the mounting groove 111, serving as a rotation fulcrum and structural support to ensure overall stability.

[0083] Please see Figures 7 to 9In some embodiments, when the display screen 200 is in the second position, one end protruding from the mounting groove 111 abuts against the edge of the mounting groove 111. This abutment constitutes a mechanical limit on the display screen 200 in the tilted position, effectively preventing the screen from continuing to flip forward or droop, ensuring that it is stably maintained at a preset viewing angle.

[0084] The front edge of the mounting groove 111 is specially designed to fit the contour of the end of the display screen 200. For example, the front edge of the mounting groove 111 has an upwardly extending stop wall or partial boss, the inner surface of which is a flat surface 212, an arc surface, or an inclined surface, to achieve surface or line contact with the bottom surface or side of the display screen 200. This contact method not only provides reliable support reaction force, but also disperses local stress, preventing housing wear or screen breakage caused by point contact.

[0085] The structure of the protruding end of the display screen 200 is also optimized accordingly. Its bottom edge is usually chamfered, rounded, or has a flexible edging to reduce impact noise and surface damage when it comes into contact with the edge of the mounting groove 111. In some high-reliability designs, the protruding end of the display screen 200 is also embedded with a buffer pad or silicone shock absorber to further improve the softness of the touch and absorb gaps caused by minor assembly tolerances.

[0086] This abutment has a dual function: firstly, it acts as a limit stop at the end of the movement, clearly defining the final position of the second position; secondly, it acts as a load-bearing fulcrum, sharing the self-weight load of the display screen 200 with the connecting shaft structure 210. Especially when the user frequently views the screen or the device is not placed horizontally, this abutment structure can significantly reduce the shear stress between the connecting shaft and the guide groove, extending the service life of the moving parts.

[0087] In some embodiments, the display screen 200 is movably connected to the mounting bracket 110, allowing the display screen 200 to switch between a first position and a second position. The first position corresponds to the flat state where the display screen 200 is stored relative to the mounting bracket 110, in which case the display screen 200 is fully embedded inside the mounting bracket 110 or flush with its upper surface, facilitating storage and transportation; the second position corresponds to the tilted state where the display screen 200 is unfolded relative to the mounting bracket 110, in which case the display screen 200 faces the user at a certain angle, facilitating the reading of blood pressure measurement data.

[0088] The switching of the display screen 200 between the two positions is achieved through a preset path. This preset path is defined by the connecting shaft structure 210 and the guide hole structure 120, ensuring that the display screen 200 remains stable and wobble-free during movement and avoiding interference with other internal components. The transition of the display screen 200 from the first position to the second position is not a free flip, but is controlled by mechanical constraints and the drive mechanism in coordination, thereby achieving precise positioning and reliable support.

[0089] In some embodiments, the blood pressure monitor 10 also includes a holding mechanism disposed on the mounting bracket 110 and / or the display screen 200. The holding mechanism acts simultaneously between the mounting bracket 110 and the display screen 200 to provide a holding force when the display screen 200 is in the second position. Thus, the holding mechanism must functionally act simultaneously between the mounting bracket 110 and the display screen 200, establishing a stable connection through mechanical cooperation or elastic force transmission. When the display screen 200 is switched to the second position, i.e., the tilted use state, the holding mechanism can provide sufficient holding force to resist the interference torque generated by the display screen 200's own weight, slight external touches, or changes in the device's placement angle, ensuring that the display screen 200 is stably maintained at the preset viewing angle, preventing accidental drop or shaking from affecting the accuracy and comfort of the user's blood pressure measurement data.

[0090] Specifically, when the display screen 200 switches from the first position to the second position, the holding mechanism effectively intervenes and functions. After the display screen 200 reaches the second position, the holding mechanism securely holds the display screen 200 in that position through mechanical engagement or elastic locking. This holding function ensures that the display screen 200 will not unexpectedly fall, shake, or shift in angle due to its own weight, slight external touches, or changes in the device's placement angle during the user's reading of measurement data, thereby guaranteeing the stability of the viewing angle and the accuracy of the readings.

[0091] Please see Figure 3 , Figure 4 , Figure 9 and Figure 10 The retaining mechanism also includes an elastic drive mechanism 300. This elastic drive mechanism 300 is movably disposed inside the mounting bracket 110, specifically installed on the side wall or bottom cavity of the bracket. The elastic drive mechanism 300 has two operating states: a pre-compressed state and a released state. In the initial state, i.e., when the display screen 200 is in the first position, the elastic drive mechanism 300 is pre-compressed by an external force or assembly structure, storing elastic potential energy, and is in the pre-compressed state.

[0092] When a user applies a slight external force to the display screen 200 (such as gently pushing upwards or pressing the edge of the screen), the display screen 200 begins to move relative to the mounting bracket 110. This movement triggers the release mechanism of the elastic drive mechanism 300, causing it to quickly switch from a pre-compressed state to a released state. During the release process, the elastic drive mechanism 300 converts its stored elastic potential energy into kinetic energy, actively propelling the display screen 200 to continue moving along a preset path until it reaches the second position and comes to a stable stop.

[0093] The specific form of the elastic drive mechanism 300 includes, but is not limited to, compression springs, torsion springs, spring sheets, or elastic rubber blocks. For example, one end of the compression spring abuts against the fixed boss of the mounting bracket 110, and the other end abuts against the movable push rod; the push rod is linked with the connecting shaft structure 210. When the display screen 200 is slightly lifted past the critical point, the spring is released, and the push rod moves forward to assist in completing the remaining unfolding stroke. As another example, a torsion spring is sleeved on the rotating shaft of the connecting shaft structure 210, one end of which is fixed to the bracket, and the other end acts on the back plate of the display screen 200. When unlocked, it drives the screen to automatically lift through torque output.

[0094] The design of this flexible drive mechanism 300 significantly enhances the user experience. Users do not need to manually unfold the screen completely; they only need to provide an initial trigger action, and the subsequent unfolding process is completed automatically by the mechanism, making operation convenient and responsive. At the same time, the output force of the flexible drive mechanism 300 is precisely calculated to overcome frictional resistance and the screen's own weight without causing impact or noise due to excessive thrust.

[0095] In addition, the flexible drive mechanism 300 also has a reset function. When the user presses the display screen 200 from the second position back to the first position, the mechanism is compressed again, returning to the pre-compressed state, ready for the next automatic unfolding. The entire cycle is reliable and durable, supporting thousands of opening and closing operations without failure.

[0096] In some embodiments, the elastic drive mechanism 300 includes three parts: a fixed member 310, a movable member 320, and an elastic member 330. These three parts work together to form a compact, reliable, and reusable automatic deployment drive unit to assist the display screen 200 in smoothly switching from a first position to a second position.

[0097] The fastener 310 is fixedly connected to the inner cavity structure of the mounting bracket 110. For example, the fastener 310 is an integrally formed limiting boss or snap-fit ​​structure on the mounting bracket 110; in another embodiment, the fastener 310 is an independent metal or plastic component, which is securely assembled to a designated position on the mounting bracket 110 by screws, hot-melt pins, or snap-fit ​​methods. The main function of the fastener 310 is to provide a stable reaction force fulcrum for the elastic element 330, ensuring that its compression and release processes are controlled.

[0098] The movable component 320 is movably disposed inside the mounting bracket 110 and slides along a preset straight or arc path. The movable component 320 is typically made of a low-friction engineering plastic (such as POM, PA66) or a stamped metal part. Its outer contour mates with guide ribs, grooves, or guide rails on the inner wall of the mounting bracket 110 to restrict its degrees of freedom and prevent deflection. One end of the movable component 320 has a pushing surface or a linkage protrusion, which directly contacts the back plate of the display screen 200, the connecting shaft structure 210, or the dedicated trigger arm during movement, thereby effectively transmitting the driving force to the display screen 200.

[0099] The elastic element 330 extends along the moving path of the movable element 320 and simultaneously abuts against the fixed element 310 and the movable element 320. The elastic element 330 may be a compression spring, a coil spring, a leaf spring, or a silicone elastomer. In the initial assembled state, the elastic element 330 is compressed between the fixed element 310 and the movable element 320, and is in a pre-compressed state, at which point the elastic element 330 stores elastic potential energy. This pre-compression amount is precisely calculated to ensure sufficient driving force to push the display screen 200 to complete the unfolding action, while avoiding structural impact or noise due to excessive elasticity.

[0100] When the user applies an initial external force to the display screen 200, causing it to move from the first position to the second position, the constraint on the movable member 320 is released or it crosses a critical point, and the elastic drive mechanism 300 immediately switches from a pre-compressed state to a released state. During this process, the elastic member 330 rapidly releases its stored elastic potential energy, propelling the movable member 320 forward along the movement path. The movable member 320 acts on the relevant parts of the display screen 200 through its pushing surface, causing the display screen 200 to continue moving along the preset path until it stably stops at the second position.

[0101] The entire driving process has a clear trigger threshold and a smooth force output curve. The stiffness, free length, pre-compression of the elastic element 330, and the mass of the moving element 320 together determine the unfolding speed and feel. In the optimized design, the output force of the elastic drive mechanism 300 is larger at the beginning of the stroke to overcome static friction and the screen's own weight; it gradually decreases at the end of the stroke to avoid abnormal noise caused by the screen hitting the stop structure.

[0102] Furthermore, when the display screen 200 is manually pressed back from the second position to the first position, the movable part 320 moves in the opposite direction, recompressing the elastic part 330, causing the elastic drive mechanism 300 to re-enter the pre-compression state, completing a complete energy storage, energy release, and reset cycle.

[0103] In some embodiments, the fixed member 310 and the movable member 320 cooperate to form a receiving cavity 340, which extends along the movement path of the movable member 320, and the elastic member 330 is located within the receiving cavity 340.

[0104] Specifically, the fixed member 310 and the movable member 320 cooperate to form a closed or semi-closed receiving cavity 340. The receiving cavity 340 extends along the moving path of the movable member 320, and its internal space is dedicated to installing and limiting the elastic member 330, ensuring that the elastic member 330 maintains a stable working posture during compression and release, and avoiding displacement, twisting or separation from the preset working position.

[0105] The cross-sectional shape of the receiving cavity 340 is adapted to the type of the elastic element 330. When the elastic element 330 is a cylindrical compression spring, the receiving cavity 340 is a circular or cylindrical structure with guide ribs on the inner wall; when the elastic element 330 is a leaf spring or a sheet-like elastomer, the receiving cavity 340 is designed as a flat rectangular channel. The inner wall surface of the cavity is usually smoothed or coated with a low-friction coating to reduce wear and energy loss of the elastic element 330 during repeated expansion and contraction.

[0106] The fixed member 310 forms one side boundary of the receiving cavity 340 and is typically a stationary support structure. Its inner wall surface serves as the rear abutment surface of the elastic member 330, providing a stable reaction force when the elastic member 330 is compressed. The movable member 320 forms the other side boundary of the receiving cavity 340 and moves synchronously with the extension and retraction of the elastic member 330. The movable member 320 has an inner groove or limiting flange on the side facing the elastic member 330 to position the front end of the elastic member 330 and prevent it from popping out or shaking during release.

[0107] The overall length of the receiving cavity 340 is primarily to ensure that the elastic element 330 always operates within a controllable pre-compression range. The two ends of the receiving cavity 340 are also equipped with anti-disengagement structures, such as inward-retracting latches, limiting steps, or elastic retaining rings, to further constrain the axial displacement of the elastic element 330 and improve the safety and durability of the mechanism.

[0108] In terms of manufacturing process, the fixing component 310 can be integrally injection molded with the mounting bracket 110, while the moving component 320 is embedded into the guide groove of the mounting bracket 110 through secondary assembly. The receiving cavity 340 formed by the two does not require an additional shell or seal, which simplifies the number of parts and assembly process, helps to reduce production costs and improve product consistency.

[0109] Please see Figure 4 and Figure 9 In some embodiments, the display screen 200 is provided with a mating member 350, the movable member 320 is provided with a first contact surface 321, and the mating member 350 is provided with a second contact surface 351. When the display screen 200 is in a first position, the first contact surface 321 and the second contact surface 351 are set at an angle; when the display screen 200 is in a second position, the first contact surface 321 and the second contact surface 351 are in contact.

[0110] Specifically, the mating component 350 is a structural part fixedly connected to the bottom or back side of the display screen 200. Its main function is to form a movable mating relationship with the movable component 320, so as to realize the stable switching of the screen between the first position and the second position. The mating component 350 is usually made of engineering plastics, metal stampings, or composite materials, and has sufficient rigidity and wear resistance to withstand the mechanical loads during repeated opening and closing processes.

[0111] The first contact surface 321 and the second contact surface 351 form a pair of interacting mechanical contact interfaces, which are used to transmit driving force during the movement of the display screen 200 and to achieve stable positioning and reliable support at the target position.

[0112] Both the first contact surface 321 and the second contact surface 351 are designed as matching inclined plane structures, which together constitute a force transmission and motion conversion mechanism based on the wedge principle.

[0113] When the display screen 200 is in the first position, it is completely attached to the upper surface of the blood pressure monitor 10 and in a retracted position, with the first contact surface 321 and the second contact surface 351 forming an angle. This angle keeps the two inclined surfaces in a non-adhesive state, typically manifesting as point contact, line contact, or a small gap. In this state, even if the moving part 320 is subjected to the pre-pressure of the elastic drive mechanism 300, it will not exert a force sufficient to lift the display screen 200, thereby ensuring that the screen remains stably closed when not in operation.

[0114] When the user triggers the unfolding mechanism, the elastic drive mechanism 300 releases its stored energy, propelling the movable part 320 forward in a horizontal direction. As the movable part 320 advances, its first contact surface 321 gradually approaches and presses against the second contact surface 351 on the mating part 350. Since both contact surfaces are inclined, the horizontal thrust applied by the movable part 320 is decomposed into multiple directional components at the contact interface. Among them, the normal force perpendicular to the contact interface is further decomposed into an upward vertical component and a horizontal component. This vertical component acts on the bottom of the display screen 200, forming a driving torque for rotation around the axis, causing the screen to tilt upward from the first position.

[0115] This process fully utilizes the wedge effect: efficiently converting the linear thrust generated by the elastic element 330 into a rotational torque that drives the screen to deflect. The entire unfolding action is smooth, responsive, and requires minimal triggering force, making it easy for elderly users to operate with one hand.

[0116] When the display screen 200 moves to the second position, it reaches the optimal viewing angle for the user, and the first contact surface 321 and the second contact surface 351 are fully engaged. At this point, a stable surface-to-surface contact is formed between the two inclined surfaces, providing not only clear positional limits but also supporting the load. The engaged contact interface effectively resists the sagging tendency caused by the screen's own weight and the shaking caused by slight external touches, ensuring a stable viewing angle and clear visibility of information during measurement readings.

[0117] For example, the tilt angle between the first contact surface 321 and the second contact surface 351 is set between 15° and 45°, balancing force conversion efficiency and structural compactness. The contact surface can be hardened or coated with a low-friction coefficient material to reduce wear and improve handling. In addition, the relative movement trajectory of the mating part 350 and the moving part 320 is constrained by guide grooves to ensure smooth and controllable contact process on the inclined surfaces, avoiding deviation or jamming.

[0118] When the display screen 200 is retracted, the user presses the front end of the screen, applying a counterforce against the elastic force. This force causes the movable part 320 to retract, and the first contact surface 321 and the second contact surface 351 disengage from their contact state, returning to their angled arrangement. The display screen 200 then rotates downward around the axis, finally returning to the first position, completing one full unfolding and retraction cycle.

[0119] Please see Figure 12 In some embodiments, the holding mechanism further includes an elastic positioning mechanism 400, which is disposed on the display screen 200. The mounting bracket 110 has a first groove and a second groove distributed along the movement trajectory of the display screen 200. Specifically, when the display screen 200 is in a first position, a portion of the elastic positioning mechanism 400 is located in the first groove; when the display screen 200 is in the second position, a portion of the elastic positioning mechanism 400 is located in the second groove.

[0120] When the display screen 200 is in the first position (i.e., the flat storage state), a portion of the elastic positioning mechanism 400 is embedded in the first groove. The contour of the first groove matches the shape of the elastic positioning mechanism 400, providing circumferential restraint to the elastic positioning mechanism 400 and preventing the display screen 200 from accidentally lifting or shaking when not in operation. This fit ensures the overall compactness and appearance integrity of the device during transportation, storage, or when not in use.

[0121] When a user needs to view measurement data, an external force can be applied to flip the display screen 200 from the first position to the second position. During this process, the elastic positioning mechanism 400 moves synchronously with the display screen 200 and slides along the surface of the mounting bracket 110. When the display screen 200 reaches the second position (i.e., the tilted use state), part of the elastic positioning mechanism 400 automatically falls into the second groove. The position of the second groove is precisely calculated so that it corresponds perfectly to the positioning point of the display screen 200 at the optimal viewing angle. After the elastic positioning mechanism 400 contacts the side wall of the second groove, it undergoes elastic deformation and quickly returns to its original position, forming a clear "click" feedback, while firmly locking the display screen 200 in the second position.

[0122] The elastic positioning mechanism 400 can take various structural forms. For example, it typically consists of a flexible metal sheet, a plastic snap-fit, or a spring-loaded protrusion. Its materials and geometry are optimized to ensure sufficient elasticity and durability, allowing it to withstand repeated insertion and removal operations without permanent deformation or fatigue failure. The opening edges of both the first and second grooves are chamfered or rounded to reduce frictional resistance and wear risk during the movement of the elastic positioning mechanism 400 into and out of the grooves, thus extending its service life.

[0123] Furthermore, the first and second grooves are arranged sequentially along the movement trajectory of the display screen 200, and the distance between them is coordinated with the rotation radius of the display screen 200 and the installation position of the elastic positioning mechanism 400. This layout ensures that the elastic positioning mechanism 400 can smoothly slide through the transition area between the two grooves when switching positions, avoiding jamming or jumping out. Through the synergistic effect of the elastic positioning mechanism 400 and the double-groove structure, the blood pressure monitor 10 achieves accurate and reliable positioning of the display screen 200 at two key positions, significantly improving the user's operating experience and the structural stability of the product.

[0124] For example, the elastic positioning mechanism 400 is composed of a spring and a ball bearing. This structure is located inside the housing or the rear mounting cavity of the display screen 200 and is used to cooperate with the first and second grooves on the mounting bracket 110 to achieve precise positioning and stable holding of the display screen 200 in different working positions.

[0125] One end of the spring is fixed to a positioning seat inside the housing of the display screen 200, and the other end contacts a ball bearing and applies a continuous pushing force. The ball bearing protrudes from the surface of the display screen 200 housing, forming a positioning protrusion that contacts the mounting bracket 110. When the display screen 200 moves relative to the mounting bracket 110, the ball bearing rolls along the surface of the mounting bracket 110 and engages in a corresponding groove when it reaches a preset position. The spring force ensures that the ball bearing remains firmly against the surface of the mounting bracket 110 and provides noticeable tactile feedback upon entering the groove, while preventing the ball bearing from dislodging from the groove due to vibration or slight external force.

[0126] When the display screen 200 is in the first position (flat storage state), the ball bearing is inserted into the first groove on the mounting bracket 110 under the action of the spring. The depth and diameter of the first groove are precisely designed to fully accommodate the inserted part of the ball bearing, forming a stable mechanical limit and effectively preventing the display screen 200 from accidentally flipping or shaking when not in use.

[0127] When the user flips the display screen 200 upwards to the second position (tilted use state), the ball rolls along the surface of the mounting bracket 110, overcomes the spring resistance, slides out of the first groove, and passes through the transition area between the two grooves. When the display screen 200 reaches the predetermined tilt angle, the ball quickly falls into the second groove under the action of the spring restoring force. The position of the second groove corresponds to the optimal human-machine viewing angle, and its geometry matches the curvature of the ball, enabling the ball to achieve stable engagement with surface contact or near-point contact, thereby reliably locking the display screen 200 in the second position.

[0128] It should be understood that the retaining mechanism is not limited to the listed elastic drive mechanism 300 or elastic positioning mechanism 400. In other alternative embodiments, the retaining mechanism may also be a damping friction component (such as a damping hinge) disposed at the connecting shaft structure, or a magnetic component disposed on the mounting bracket 110 and the display screen 200 respectively, as long as it can provide a retaining force sufficient to overcome the weight of the display screen 200 and the conventional touch force when it is in the second position.

[0129] Furthermore, those skilled in the art should understand that the positions of the elastic positioning mechanism 400 and the groove can be interchanged. In other embodiments, the elastic positioning mechanism 400 (such as a spring and a ball bearing) can also be embedded in the mounting bracket 110, and the first groove and the second groove can be formed on the corresponding moving trajectory surface of the display screen 200. This kinematically inverted structure can also achieve the precise positioning function of this application.

[0130] In some embodiments, the blood pressure monitor body 100 further includes a measuring arm 130 and a base 140, the measuring arm 130 being rotatably connected to the base 140, and a mounting bracket 110 being disposed on the measuring arm 130.

[0131] The measuring arm 130 is rotatably mounted on the base 140 via a rotating connection structure, allowing the user to adjust the spatial orientation of the measuring arm 130 according to the actual usage scenario or personal habits. This rotating connection structure supports horizontal rotation adjustment, and some embodiments also support fine adjustment of the pitch angle to further improve measurement comfort and ease of operation.

[0132] The base 140 serves as the supporting foundation for the blood pressure monitor body 100. It typically features a large contact area and a counterweight design to ensure the stability of the entire device during use and prevent it from tipping over due to arm movements or external disturbances. The base 140 can integrate core functional components such as an air pump, power module, and control circuit board. Its outer shell surface is equipped with anti-slip textures or rubber pads to enhance friction with the desktop or tabletop.

[0133] The measuring arm 130 has a hollow cylindrical structure to accommodate the user's upper arm and complete blood pressure measurement. The inner cavity of the measuring arm 130 houses a flexible air bladder, a pressure sensor interface, and a cuff fixing mechanism, while the outer wall integrates operation buttons, status indicator lights, or a wireless communication module. The outer contour of the measuring arm 130 conforms to an ergonomic curve, and the surface is covered with a skin-friendly material to enhance wearing comfort.

[0134] The mounting bracket 110 is fixedly installed on the outer wall or top area of ​​the measuring arm 130. The position of the mounting bracket 110 is carefully arranged to ensure that when the display screen 200 is extended to the second position, its viewing angle is directly within the user's line of sight while seated, facilitating the reading of measurement results. The mounting bracket 110 and the measuring arm 130 can be reliably assembled through screw fastening, snap-fit ​​connection, or integral injection molding, ensuring structural stability during long-term use.

[0135] Because the measuring arm 130 can rotate relative to the base 140, the mounting bracket 110 and the display screen 200 it supports also have orientation adjustment capabilities. Before use, the user can rotate the measuring arm 130 to a suitable direction and then unfold the display screen 200, thus achieving dual degrees of freedom adjustment: the horizontal direction is provided by the relative rotation between the measuring arm 130 and the base 140, and the vertical direction is provided by the flipping of the display screen 200 on the mounting bracket 110. This composite adjustment mechanism significantly expands the applicable scenarios of the device, especially suitable for home environments with limited space or shared by multiple people.

[0136] Specific forms of the rotating connection structure include, but are not limited to, a rotating shaft with a bearing, a damping hinge, a ball joint, or a multi-segment limiting groove. In one typical embodiment, the measuring arm 130 has a cylindrical rotating shaft at its bottom, and the base 140 has a matching shaft hole at its top. A damping ring or friction plate is installed between the two, allowing the measuring arm 130 to remain at any angle without automatically rotating. In another embodiment, the base 140 has multiple positioning grooves, and the measuring arm 130 has an elastic positioning bead at its bottom, enabling multi-angle preset position selection through a "click" type gear switching.

[0137] In addition, the rotating connection between the measuring arm 130 and the base 140 is equipped with a cable protection structure, such as a spiral winding channel, a telescopic corrugated tube or a flexible conductive slip ring, to ensure that the internal air and circuit are not pulled, bent or worn during repeated rotation, thus ensuring the long-term reliability of the signal transmission and air supply system.

[0138] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0139] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A blood pressure monitor, characterized in that, include: A blood pressure monitor body, wherein the blood pressure monitor body is provided with a mounting bracket; A display screen is movably connected to the mounting bracket to position the display screen in a first position or a second position; wherein the display screen in the first position and the display screen in the second position are arranged at an angle; and A retaining mechanism is disposed on the mounting bracket and / or the display screen, and the retaining mechanism acts simultaneously between the mounting bracket and the display screen to provide a retaining force when the display screen is in the second position.

2. The blood pressure monitor according to claim 1, characterized in that, The retaining mechanism includes an elastic drive mechanism, which is movably disposed on the mounting bracket to allow the elastic drive mechanism to be in a pre-compressed state or a released state. When the elastic drive mechanism is in the pre-compression state and the display screen moves relative to the mounting bracket under the action of an external force, the elastic drive mechanism can switch from the pre-compression state to the release state, so that the elastic drive mechanism can push the display screen from the first position to the second position.

3. The blood pressure monitor according to claim 2, characterized in that, The elastic drive mechanism includes: A fastener, the fastener being connected to the mounting bracket; A movable component, which is movably disposed on the mounting bracket; An elastic element extends along the movement path of the movable element and abuts between the fixed element and the movable element; When the elastic drive mechanism is in the pre-compression state, the elastic element stores elastic potential energy; when the elastic drive mechanism switches from the pre-compression state to the release state, the elastic element releases elastic potential energy, so that the movable element pushes the display screen from the first position to the second position.

4. The blood pressure monitor according to claim 3, characterized in that, The fixed member and the movable member cooperate to form a receiving cavity, the receiving cavity extends along the moving path of the movable member, and the elastic member is located inside the receiving cavity.

5. The blood pressure monitor according to claim 3, characterized in that, The display screen is provided with a mating component, the movable component is provided with a first contact surface, and the mating component is provided with a second contact surface; wherein, when the display screen is in the first position, the first contact surface and the second contact surface are set at an angle; when the display screen is in the second position, the first contact surface and the second contact surface are in contact.

6. The blood pressure monitor according to claim 1, characterized in that, The display screen is provided with a connecting shaft structure, and the mounting bracket is provided with a guide hole structure; the connecting shaft structure is movably inserted through the guide hole structure.

7. The blood pressure monitor according to claim 6, characterized in that, The guide hole structure includes a rotating hole section and a sliding hole section, the sliding hole section is connected to the rotating hole section, and the rotating hole section and the sliding hole section extend along the movement trajectory of the display screen; The connecting shaft structure can be rotatably engaged with the rotating hole section; the connecting shaft structure can be slidably engaged with the sliding hole section.

8. The blood pressure monitor according to claim 6, characterized in that, The outer peripheral surface of the connecting shaft structure is at least partially arc-shaped, and the connecting shaft structure rotatably engages with the rotating hole section through the arc-shaped surface; And / or, the connecting shaft structure is rotatably inserted into the guide hole structure.

9. The blood pressure monitor according to claim 1, characterized in that, The mounting bracket is provided with a mounting groove; wherein, when the display screen is in the first position, the display screen is located in the mounting groove, and the display screen is spaced apart from the bottom of the mounting groove; when the display screen is in the second position, one end of the display screen protrudes out of the mounting groove.

10. The blood pressure monitor according to claim 1, characterized in that, The holding mechanism includes an elastic positioning mechanism, which is disposed on the display screen. The mounting bracket is provided with a first groove and a second groove distributed along the movement trajectory of the display screen. Specifically, when the display screen is in the first position, a portion of the elastic positioning mechanism is located within the first groove; when the display screen is in the second position, a portion of the elastic positioning mechanism is located within the second groove.

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