A handheld physiological parameter detection device

Abstract

The utility model provides a kind of handheld physiological parameter detection equipment, comprising: upper shell, lower shell, key assembly and circuit board;The upper shell and lower shell are buckled to form a cavity, for accommodating the circuit board, the circuit board has physiological parameter measurement function;The upper shell is provided with first through-hole;The key assembly is a key body of elastic material, and the key body has limit table and boss, and the outer diameter of the limit table is greater than the inner diameter of the first through-hole;After the key body passes first through-hole from the inside of the cavity, the outer surface of the key body is exposed to the outside, and the boss of the key body is limited in the inside of the cavity by limit table and the edge of the first through-hole, and the boss and limit table are recessed to form inner groove between them. Its surface overall waterproof structure is improved to achieve the goal that the waterproof level of the structure such as key part on equipment reaches IPX2 or more.

Description

Technical Field

[0001] This utility model relates to the field of medical monitoring technology, and in particular to a handheld physiological parameter detection device. Background Technology

[0002] Handheld physiological parameter monitoring devices are widely used in modern medical equipment due to their portability and versatility. These devices are typically used to monitor physiological parameters such as blood oxygen saturation, pulse, and blood pressure, and are widely used in hospitals, clinics, and home care. However, these devices inevitably come into contact with liquids during use; for example, they may encounter rain when used outdoors, or sweat or other liquids during home care. Therefore, the waterproof performance of these devices has become an important consideration.

[0003] In existing technologies, handheld physiological parameter monitoring devices typically employ simple waterproof designs, such as adding a waterproof coating to the device surface or using sealing rings in critical areas. While these methods provide some degree of waterproof protection, their waterproof rating is usually low and cannot meet higher waterproof requirements, especially in harsh environments.

[0004] Furthermore, a simple waterproof design may affect the device's heat dissipation and ventilation performance, leading to a decrease in the device's stability and reliability during long-term use. Therefore, how to improve the waterproof rating of handheld physiological parameter testing devices without affecting device performance has become an urgent problem to be solved in the current technological field. Summary of the Invention

[0005] The purpose of this invention is to provide a handheld physiological parameter detection device that improves the overall waterproof structure of the surface, so as to achieve a waterproof rating of IPX2 or higher for the button area and other structures on the device.

[0006] To solve the above-mentioned technical problems, this utility model provides a handheld physiological parameter detection device, characterized in that the device includes: an upper shell, a lower shell, a button assembly, and a circuit board; the upper shell and the lower shell are fastened together to form a cavity for accommodating the circuit board, the circuit board having a physiological parameter measurement function; the upper shell is provided with a first through hole; the button assembly is a button body made of elastic material, and the button body has a limiting platform and a boss, the outer diameter of the limiting platform being larger than the inner diameter of the first through hole; after the button body passes through the first through hole from the cavity, the outer surface of the button body is exposed to the outside, while the boss of the button body is confined inside the cavity by the limiting platform and the edge of the first through hole, and a groove is formed between the boss and the limiting platform; the inner surface of the edge of the first through hole of the upper shell protrudes to form a positioning post, the positioning post being inserted into the groove for fixation; the inner surface of the button body protrudes to form at least one protruding post, the protruding post being directly above the button element on the circuit board.

[0007] In one embodiment, the device further includes a display screen and a cover plate; the upper shell is provided with a second through hole; the display screen is located on the side of the circuit board facing the upper shell and is electrically connected to the circuit board, the display screen is positioned directly opposite the second through hole, and the effective display area of ​​the display screen is smaller than the area of ​​the second through hole; the cover plate has a viewing window area and is fixed to the upper shell, the viewing window area of ​​the cover plate covering directly above the second through hole; a shallow groove is provided on the surface of the upper shell, the area of ​​the shallow groove is larger than the second through hole, the cover plate is fixed in the shallow groove, and the surface of the display screen is flush with the surface of the second through hole.

[0008] In one embodiment, the button assembly further includes a first button, the first button having a harder hardness than the button body; the upper surface of the button body is recessed to form an inner groove for accommodating the first button, and the non-recessed portion of the upper surface of the button body forms the outer surface; a protrusion is provided on the side of the inner groove facing the cavity to form the protrusion; the number of button elements is the same as the number of protrusions provided on the button body.

[0009] In one embodiment, the device further includes a sealing assembly located at the snap-fit ​​position between the upper shell and the lower shell; the sealing assembly is made of an elastic material and has an H-shaped cross-section, and has a first groove and a second groove; the edge of the upper shell protrudes to form a first boss, and the edge of the lower shell protrudes to form a second boss; after the upper shell and the lower shell are snapped together, the first boss is inserted into the first groove, and the second boss is inserted into the second groove.

[0010] In one embodiment, the side surface of the inner slot forms a plurality of positioning grooves inward; the edge of the first button is provided with a plurality of positioning claws, which are fixed in the positioning grooves; the thickness of the root of the side surface of the inner slot is less than the thickness of the upper surface of the button body.

[0011] In one embodiment, the sealing component is a silicone sealing ring; the inner surface of the silicone sealing ring is provided with a plurality of mounting posts, and the inner surface edge of the lower shell is provided with a plurality of mounting grooves. The mounting posts are inserted into the mounting grooves to fix the silicone sealing ring onto the lower shell, and the mounting posts and the mounting grooves are fixedly installed in a one-to-one correspondence.

[0012] In one embodiment, the device further includes a first threaded fastener; the upper shell has a raised surface inside the cavity forming a mounting through hole, and the lower shell has a raised surface inside the cavity forming a first threaded post; the first threaded fastener passes through the mounting through hole and is fixed to the first threaded post, and the first threaded fastener is located below the cover plate; the device further includes a second threaded fastener; the lower shell has a recessed area forming a battery compartment; the opening direction of the battery compartment is opposite to the opening direction of the cavity; a positioning hole is provided at the bottom of the battery compartment, and a second threaded post is provided on the inner surface of the upper shell; the second threaded fastener passes through the positioning hole from inside the battery compartment and is fixed to the second threaded post.

[0013] In one embodiment, the device further includes at least one connector; at least one mounting hole is formed on the side surface of the sealing assembly along the thickness direction of the sealing assembly, the number of mounting holes being the same as the number of connectors, one end of the connector passing through the mounting hole and being electrically connected to the circuit board; the outer surface of the mounting hole is provided with the first groove and the second groove, so that the first groove and the second groove respectively form a complete groove structure on the corresponding surface, for accommodating a complete circle of the first boss and the second boss formed on the edges of the upper shell and the lower shell respectively.

[0014] In one embodiment, the device further includes a U-shaped snap-fit ​​structure. Two hollow pillars are disposed on the inner surface of the lower shell within the cavity. The U-shaped snap-fit ​​structure has two uprights. The uprights are inserted into the hollow pillars to form an arch structure. One end of the connector passes through the mounting hole and the arch structure and is electrically connected to the circuit board. The connector is provided with a limiting boss, which is snapped between the arch structure and the side surface of the lower shell.

[0015] In one embodiment, the device further includes: a horn and a battery spring; the lower shell has a groove on the inner surface of the cavity 610 to form a horn cavity for accommodating the horn; the battery spring is installed in the battery compartment; the device further includes a plug; the lower shell has two machined holes between the cavity and the battery compartment; the plug is fixed to the machined holes by an interference fit; at least one positioning boss is radially provided on at least one of the limiting platform and the boss; at least one notch adapted to the positioning boss is provided on the inner surface of the upper shell at the position of the first through hole; the device further includes a compartment door, the compartment door is fastened to the battery compartment, and a sealing ring structure is provided between the battery compartment and the compartment door; the device further includes: a display screen bracket, the display screen is fixed to the circuit board by the display screen bracket.

[0016] As can be seen from the above technical solution, the advantages and positive effects of this utility model are as follows: By adopting the structural design of the elastic button assembly and the shell, the waterproof design of the button part reaches the requirement of IPX2 or higher. Secondly, through optimization of various aspects such as shell sealing design and interface sealing design, the waterproof performance of the equipment is improved, ensuring the stability and reliability of the equipment in various usage environments. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the button structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the button assembly of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the connector portion in this utility model;

[0021] Figure 5 This is a schematic diagram of the upper shell of this utility model;

[0022] Figure 6 This is a schematic diagram of the lower shell of this utility model;

[0023] Figure 7 A schematic diagram of the sealing assembly of this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 300, Upper shell; 600, Lower shell; 430, Sealing assembly; 400, Button assembly; 520, Circuit board; 510, Display screen; 200, Cover plate; 610, Cavity; 310, First through hole; 320, Second through hole; 423, Limiting platform; 424, Boss; 421, Outer surface; 426, Protrusion; 521, Button element; 410, First button; 420, Button body; 427, Inner groove; 330, Positioning post; 425, Inner groove; 426, Protrusion; 370, Shallow groove; 425, Inner groove; 431, First groove; 432, Second groove; 340, First boss; 620, Second boss; 422, Positioning groove; 411 433. Positioning claw; 640. Mounting post; 731. Mounting groove; 350. First threaded fastener; 650. Mounting through hole; 732. Second threaded fastener; 660. Battery compartment; 661. Positioning hole; 360. Second threaded post; 434. Mounting hole; 530. Connector; 531. Snap-fit ​​structure; 531. Snap-fit ​​structure; 670. Hollow column; 532. Column; 710 / 720. Battery spring; 533. Limiting boss; 540. Horn; 440. Plug; 630. Machining hole; 680. Horn cavity; 428. Positioning boss; 800. Compartment door; 511. Display bracket; 900. Battery; 380. Notch. Detailed Implementation

[0026] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0027] To further illustrate the structure of this utility model, the preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 7 As shown, this utility model provides a handheld physiological parameter detection device 100, which includes: an upper shell 300, a lower shell 600, a button assembly 400, and a circuit board 520. The upper shell 300 and the lower shell 600 are fastened together to form a cavity 610 for accommodating the circuit board 520, which has a physiological parameter measurement function; the upper shell 300 is provided with a first through hole 310 for installing the button assembly 400.

[0029] The button assembly 400 is a button body 420 made of elastic material, and the button body 420 has a limiting platform 423 and a boss 424. The outer diameter of the limiting platform 423 is larger than the inner diameter of the first through hole 310. After the button body 420 passes through the first through hole 310 from the inside of the cavity 610, the outer surface 421 of the button body 420 is exposed to the outside. The boss 424 of the button body 420 is restricted inside the cavity 610 by the limiting platform 423 and the edge of the first through hole 310. A recess 427 is formed between the boss 424 and the limiting platform 423. A positioning post 330 is formed by the protrusion of the inner surface of the edge of the first through hole 310 of the upper shell 300. The positioning post 330 is inserted into the recess 427 for fixation. At least one protrusion 426 is formed by the protrusion of the inner surface of the button body 420. The protrusion 426 is directly above the button element 521 on the circuit board 520.

[0030] This invention enhances the waterproof performance of the button area through a special design that integrates the outer shell and the elastic button structure. Furthermore, to achieve a sealing design at the edges of the shell, the device also includes a sealing component 430, located at the engagement position between the upper shell 300 and the lower shell 600. This invention optimizes the overall waterproof performance of the device through multiple dimensions, including the sealing design between the shells, ensuring the stability and reliability of the device under various operating environments. The device improves the overall waterproof structure of its surface to achieve a waterproof rating of IPX2 or higher for the shell seams and button areas.

[0031] like Figure 1 As shown, the device also includes a display screen 510 and a cover plate 200; the upper shell 300 is provided with a second through hole 320 for mounting the display screen 510, so that the effective display area of ​​the display screen 510 can be exposed and viewed; the display screen 510 is located on the side of the circuit board 520 facing the upper shell 300 and is electrically connected to the circuit board 520, the display screen 510 is positioned directly opposite the second through hole 320, and the effective display area of ​​the display screen 510 is smaller than the area of ​​the second through hole 320; the cover plate 200 has a viewing window area and is fixed on the upper shell 300, the viewing window area of ​​the cover plate 200 covers the area directly above the second through hole 320.

[0032] like Figure 1As shown, in order to fix the cover plate 200 and improve the waterproof effect of the display screen 510, in some embodiments of this utility model, a shallow groove 370 is provided on the surface of the upper shell 300. The area of ​​the shallow groove 370 is larger than the second through hole 320. The cover plate 200 is fixed in the shallow groove 370. The cover plate 200 has a viewing area, and the viewing area of ​​the cover plate 200 covers the top of the second through hole 320.

[0033] like Figure 1 As shown, in some embodiments of this utility model, the display screen 510 is located on the side of the circuit board 520 facing the upper shell 300, and the other side of the circuit board 520 faces the lower shell 600. The display screen 510 is electrically connected to the circuit board 520. To improve the viewing effect, the surface of the display screen 510 can be flush with the surface of the second through hole 320, that is, the surface of the display screen 510 and the surface of the second through hole 320 are on the same plane.

[0034] In some embodiments of this utility model, the device further includes a display screen bracket 511, through which the display screen 510 is fixed to the circuit board 520. The flatness between the surface of the display screen 510 and the surface of the second through hole 320 is adjusted by adjusting the height of the display screen bracket 511.

[0035] like Figure 1 As shown, in some embodiments of this utility model, the outer surface 421 of the button body 420 can be screen-printed with button function patterns to indicate the function corresponding to the button element 521 to the user. The number of button elements 521 is the same as the number of protrusions 426 provided on the button body 420. Figure 2 and Figure 3 As shown, in some embodiments of this utility model, in order to facilitate the installation of the button body 420 and avoid the reversed silkscreen or incorrect position display on the button body 420, a positioning boss is provided on the button body 420. That is, at least one positioning boss 428 is provided radially on at least one of the limiting platform 423 and the boss 424, and at least one notch 380 adapted to the positioning boss 428 is provided on the inner surface of the upper shell 300 at the position of the first through hole 310.

[0036] like Figure 2 and Figure 3As shown, to facilitate pressing and improve the sensitivity of button recognition, the protrusion 426 has greater rigidity, for example, by changing the material of the protrusion 426 or increasing its thickness. To save costs, the protrusion 426 is grown from the button body 420, so that the thickness or height of the protrusion 426 is greater than the thickness of the button body 420. Therefore, when the button body 420 is touched and pressed, the protrusion 426 can contact the button element 521 with more force.

[0037] like Figure 2 and Figure 3 As shown, in some embodiments of this utility model, in order to make the elastic button assembly 400 more sensitive, the button assembly 400 includes, in addition to a button body 420 made of elastic material, a first button 410 with a hardness higher than that of the button body 420. The first button 410 has a higher hardness than that of the button body 420. The button body 420 is elastic. The upper surface of the button body 420 is recessed to form an inner groove 425 for accommodating the first button 410. The non-recessed portion of the upper surface of the button body 420 forms the outer surface 421. The inner groove 425 has a protrusion on the side facing the cavity 610 to form the protrusion 426.

[0038] like Figure 2 and Figure 3 As shown, in some embodiments of this utility model, in order to better fix the first button 410, a plurality of positioning grooves 422 are formed inward on the side surface of the inner groove 425; a plurality of positioning claws 411 are provided on the edge of the first button 410, and the positioning claws 411 are fixed in the positioning grooves 422; the thickness of the root of the side surface of the inner groove 425 is less than the thickness of the upper surface of the button body 420, so that when the first button 410 is pressed, the root of the side surface of the inner groove 425 forms an elastic cantilever, which is used to bear force so that the protrusion 426 can touch the button element 521.

[0039] like Figures 1 to 7 As shown, in some embodiments of this utility model, the sealing component 430 has an H-shaped cross-section, with a first groove 431 and a second groove 432; the edge protrusion of the upper shell 300 forms a first boss 340, and the edge protrusion of the lower shell 600 forms a second boss 620. After the upper shell 300 and the lower shell 600 are fastened together, the first boss 340 is inserted into the first groove 431, and the second boss 620 is inserted into the second groove 432. The H-shaped sealing structure design can effectively achieve a full seal between the upper and lower shells, and can also avoid gaps between the two shells after they are fastened together. The sealing component 430 is made of an elastic material, such as a silicone sealing ring. The sealing component 430 can be a half-circle or a full-circle design.

[0040] like Figure 7 As shown, in some embodiments of this utility model, the sealing component 430 is a complete silicone sealing ring; to facilitate assembly and installation, a plurality of mounting posts 433 are provided on the inner surface of the silicone sealing ring, and a plurality of mounting grooves 640 are provided at the edge of the inner surface of the lower shell 600. The mounting posts 433 are inserted into the mounting grooves 640 to fix the silicone sealing ring onto the lower shell 600, and the mounting posts 433 and the mounting grooves 640 are fixedly installed in a one-to-one correspondence.

[0041] In some embodiments of this utility model, the device further includes a first threaded fastener 731; the upper shell 300 has a surface protrusion inside the cavity 610 forming a mounting through hole 350, and the lower shell 600 has a surface protrusion inside the cavity forming a first threaded post 650. The first threaded fastener 731 passes through the mounting through hole 350 and is fixed to the first threaded post 650. The first threaded fastener 731 is located below the cover plate 200. Through this fixing method, threaded fasteners (such as screws and nuts) are not visible from the surface, and the cover plate 200 prevents water leakage from the threaded holes.

[0042] In some embodiments of this utility model, the device further includes a second threaded fastener 732; the lower shell 600 is recessed to form a battery compartment 660; the opening direction of the battery compartment 660 is opposite to the opening direction of the cavity 610; a positioning hole 661 is provided at the bottom of the battery compartment 660; a second threaded post 360 is provided on the inner surface of the upper shell 300; and the second threaded fastener 732 passes through the positioning hole 661 from inside the battery compartment 660 and is fixed to the second threaded post 360.

[0043] In some embodiments of this utility model, the device further includes at least one connector 530; at least one mounting hole 434 is provided on the side surface of the sealing component 430 along the thickness direction of the sealing component 430, the number of mounting holes 434 is the same as the number of connectors 530, one end of the connector 530 passes through the mounting hole 430 and is electrically connected to the circuit board 520; the outer surface of the mounting hole 434 is provided with the first groove 431 and the second groove 432, so that the first groove 431 and the second groove 432 respectively form a complete groove structure on the corresponding surface, for accommodating a complete circle of the first boss 340 and the second boss 620 respectively protruding on the edges of the upper shell 300 and the lower shell 600.

[0044] In some embodiments of this utility model, the device further includes a U-shaped snap-fit ​​structure 531. Two hollow pillars 670 are disposed on the inner surface of the lower shell 600 within the cavity 610. The U-shaped snap-fit ​​structure 531 has two uprights 532. The uprights 532 are inserted into the hollow pillars 670 to form an arch structure. One end of the connector 530 passes through the mounting hole 434 and the arch structure and is electrically connected to the circuit board 520. The connector 530 is provided with a limiting boss 533, which is snapped between the arch structure and the side surface of the lower shell 600.

[0045] In some embodiments of this utility model, the device further includes: a horn 540, wherein the lower shell 600 has a groove on the inner surface of the cavity 610 to form a horn cavity 680 for accommodating the horn 540.

[0046] In some embodiments of this utility model, the device further includes: battery springs 710 and 720; the battery springs 710 and 720 are installed inside the battery compartment 660.

[0047] In some embodiments of this utility model, the device further includes: the device also includes a plug 440, and the lower shell 600 has two machining holes 630 between the cavity 610 and the battery compartment 660, and the plug 440 is fixed with the machining holes 630 by interference fit.

[0048] In some embodiments of this utility model, the device further includes a battery 900 and a door 800. The battery 900 is housed within the battery compartment 660 and connected to the battery spring contacts 710 / 720. The door 800 is fastened to the battery compartment 660. To achieve a sealed and waterproof battery compartment, a sealing ring structure can also be provided between the battery compartment 660 and the door 800.

[0049] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A handheld physiological parameter detection device, characterized in that, The device includes: an upper shell, a lower shell, a button assembly, and a circuit board; the upper shell and the lower shell are fastened together to form a cavity for accommodating the circuit board, which has a physiological parameter measurement function; the upper shell is provided with a first through hole; the button assembly is a button body made of elastic material, and the button body has a limiting platform and a boss, the outer diameter of the limiting platform being larger than the inner diameter of the first through hole; after the button body passes through the first through hole from the cavity, the outer surface of the button body is exposed to the outside, while the boss of the button body is confined inside the cavity by the limiting platform and the edge of the first through hole, and a groove is formed between the boss and the limiting platform; the inner surface of the edge of the first through hole of the upper shell protrudes to form a positioning post, and the positioning post is inserted into the groove for fixation; the inner surface of the button body protrudes to form at least one protrusion, and the protrusion is directly above the button element on the circuit board.

2. The handheld physiological parameter detection device according to claim 1, characterized in that, The device also includes a display screen and a cover plate; the upper shell is provided with a second through hole; the display screen is located on the side of the circuit board facing the upper shell and is electrically connected to the circuit board, the display screen is positioned directly opposite the second through hole, and the effective display area of ​​the display screen is smaller than the area of ​​the second through hole; the cover plate has a viewing window area and is fixed to the upper shell, the viewing window area of ​​the cover plate covers the area directly above the second through hole; A shallow groove is provided on the surface of the upper shell, the area of ​​the shallow groove is larger than the second through hole, the cover plate is fixed in the shallow groove, and the surface of the display screen is flush with the surface of the second through hole.

3. The handheld physiological parameter detection device according to claim 1, characterized in that, The button assembly further includes a first button, the first button having a harder hardness than the button body; the upper surface of the button body is recessed to form an inner groove for accommodating the first button, and the non-recessed portion of the upper surface of the button body forms the outer surface; a protrusion is provided on the side of the inner groove facing the cavity to form the protrusion; the number of button elements is the same as the number of protrusions provided on the button body.

4. The handheld physiological parameter detection device according to claim 1, characterized in that, The device further includes a sealing assembly located at the snap-fit ​​position between the upper and lower shells; the sealing assembly is made of an elastic material and has an H-shaped cross-section, and has a first groove and a second groove; the edge of the upper shell protrudes to form a first boss, and the edge of the lower shell protrudes to form a second boss; after the upper and lower shells are snapped together, the first boss is inserted into the first groove, and the second boss is inserted into the second groove.

5. A handheld physiological parameter detection device according to claim 3, characterized in that, The side surface of the inner slot forms multiple positioning grooves inward; the edge of the first button is provided with multiple positioning claws, which are fixed in the positioning grooves; the thickness of the root of the side surface of the inner slot is less than the thickness of the upper surface of the button body.

6. A handheld physiological parameter detection device according to claim 4, characterized in that, The sealing component is a silicone sealing ring; the inner surface of the silicone sealing ring is provided with a plurality of mounting posts, and the inner surface edge of the lower shell is provided with a plurality of mounting grooves. The mounting posts are inserted into the mounting grooves to fix the silicone sealing ring onto the lower shell, and the mounting posts and the mounting grooves are fixedly installed in a one-to-one correspondence.

7. A handheld physiological parameter detection device according to claim 2, characterized in that, The device further includes a first threaded fastener; the upper shell has a raised surface inside the cavity forming a mounting through hole, and the lower shell has a raised surface inside the cavity forming a first threaded post. The first threaded fastener passes through the mounting through hole and is fixed to the first threaded post. The first threaded fastener is located below the cover plate. The device further includes a second threaded fastener; the lower shell has a recessed area forming a battery compartment; the opening direction of the battery compartment is opposite to the opening direction of the cavity; a positioning hole is provided at the bottom of the battery compartment, and a second threaded post is provided on the inner surface of the upper shell. The second threaded fastener passes through the positioning hole from inside the battery compartment and is fixed to the second threaded post.

8. A handheld physiological parameter detection device according to claim 4, characterized in that, The device further includes at least one connector; at least one mounting hole is formed on the side surface of the sealing component along the thickness direction of the sealing component, the number of mounting holes is the same as the number of connectors, one end of the connector passes through the mounting hole and is electrically connected to the circuit board; the outer surface of the mounting hole is provided with the first groove and the second groove, so that the first groove and the second groove respectively form a complete groove structure on the corresponding surface, for accommodating a complete circle of the first boss and the second boss formed on the edges of the upper shell and the lower shell respectively.

9. A handheld physiological parameter detection device according to claim 8, characterized in that, The device also includes a U-shaped snap-fit ​​structure. Two hollow pillars are provided on the inner surface of the lower shell within the cavity. The U-shaped snap-fit ​​structure has two uprights. The uprights are inserted into the hollow pillars to form an arch structure. One end of the connector passes through the mounting hole and the arch structure and is electrically connected to the circuit board. The connector is provided with a limiting boss. The limiting boss is locked between the arch structure and the side surface of the lower shell.

10. A handheld physiological parameter detection device according to claim 7, characterized in that, The device further includes: a horn and a battery spring; the lower shell has a groove on the inner surface of the cavity to form a horn cavity for accommodating the horn; the battery spring is installed in the battery compartment; the device further includes a plug; the lower shell has two machined holes between the cavity and the battery compartment, and the plug is fixed with the machined holes by an interference fit; at least one positioning boss is provided radially on at least one of the limiting platform and the boss; at least one notch adapted to the positioning boss is provided on the inner surface of the upper shell at the position of the first through hole; the device further includes a compartment door, which is fastened to the battery compartment, and a sealing ring structure is provided between the battery compartment and the compartment door; the device further includes: a display screen bracket, and the display screen is fixed to the circuit board by the display screen bracket.

Images