Detection device

Abstract

The application discloses a detection device and belongs to the technical field of medical equipment. The detection device comprises a mounting assembly, a protection piece and an end cover. The protection piece is arranged in the mounting assembly. The end cover is internally provided with a driving piece and a limiting arm which extend outward along an inner bottom wall. The driving piece and the limiting arm are arranged in a spaced manner and enclose a cylindrical space for accommodating the protection piece. The end cover is rotationally connected with the mounting assembly around a preset rotation axis. The protection piece is partially arranged in the cylindrical space. The limiting arm is used for limiting the lateral displacement of the protection piece during assembly of the protection piece into the cylindrical space. The detection device provided by the application can provide lateral support for the protection piece, so that the protection piece is prevented from being deviated during assembly of the detection device.

Description

Technical Field

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

[0002] The detection device includes a detection component fixed to the surface of the human body. This component acquires physiological indicators (such as glucose levels) and processes the information using internal control circuitry before transmitting it to an external receiving device. Before use, relevant components (such as the detection needle for implantation) require sealing with a protective element. During use, the protective element is removed to release the seal on the components. In related technologies, during the assembly of the detection device, the protective element is prone to shifting under the influence of other components, thus affecting the seal. Utility Model Content

[0003] This application provides a detection device that can solve the technical problem that the sealing cover is prone to displacement during the assembly process of the detection device.

[0004] To solve the above-mentioned technical problems, the testing device provided in this application includes: an installation component configured as a hollow structure with an opening at one end; a protective component disposed within the installation component; and an end cap detachably connected to the installation component and capable of sealing the opening. The end cap has a drive component and a limiting arm extending outward along the inner bottom wall. The drive component and the limiting arm are spaced apart and enclose a cylindrical space for accommodating the protective component. The end cap is rotatably connected to the installation component around a preset rotation axis, the protective component is partially placed within the cylindrical space, and the limiting arm is used to limit the lateral displacement generated during the assembly of the protective component into the cylindrical space.

[0005] The detection device provided in this application has a drive component and a limiting arm on the end cover. The limiting arm and the drive component are spaced apart and enclose a cylindrical space for accommodating the protective component. The limiting arm is used to limit the lateral displacement generated during the assembly of the protective component into the cylindrical space, so that the limiting arm can provide lateral support for the protective component, thereby limiting the offset of the protective component during the assembly of the detection device, so as to ensure the sealing of the protective component to the relevant components. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the detection device provided in this application; Figure 2 This is an exploded structural diagram of an embodiment of the detection device provided in this application; Figure 3 This is a partial cross-sectional structural diagram of an embodiment of the detection device provided in this application from a certain perspective; Figure 4 This is a partial cross-sectional structural diagram of an embodiment of the detection device provided in this application from another perspective; Figure 5 This is a partial cross-sectional structural diagram of an embodiment of the detection device provided in this application from another perspective; Figure 6 This is a structural schematic diagram of an embodiment of the end cap provided in this application; Figure 7 This is a partial cross-sectional structural schematic diagram of an embodiment of the end cap provided in this application from a certain perspective; Figure 8 This is a schematic diagram of the structure of an embodiment of the protective element provided in this application. Detailed Implementation

[0008] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0009] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "first," "second," and "third" in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0010] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0011] This application provides a detection device. The detection device can be used to detect various analytes in the human body. For example, the detection device can analyze human tissue fluid to collect indicators such as glucose, blood glucose, acetylcholine, amylase, bilirubin, cholesterol, human chorionic gonadotropin (hCG), creatine kinase (e.g., CK-MB), creatine, DNA, fructosamine, glucose, glutamine, growth hormone, hormones, ketones (e.g., ketone bodies), lactate, oxygen, peroxides, prostate-specific antigen (PSA), prothrombin, RNA, thyroid-stimulating hormone (TSH), and troponin. The detection device can also be used to determine drug concentrations. For example, the detection device can be used to detect the concentrations of antibiotics (e.g., gentamicin, vancomycin, etc.), digoxin, narcotics, theophylline, and warfarin. Please refer to [link to relevant documentation]. Figures 1-5 The detection device 100 may include a mounting assembly 10, a detection component 20, and an end cap 30. The mounting assembly 10 is used to mount the detection component 20 onto the human body, for example, onto the surface of the human body. The detection component 20 is used to acquire human physiological information. The detection component 20 may include adhesives (not shown), such as adhesive tape, so that the detection component 20 can be fixed to the surface of the human body by the adhesives. The mounting assembly 10 is configured as a hollow structure with an opening 141 at one end. The mounting assembly 10 has a receiving space 14, in which the detection component 20 is detachably mounted. Specifically, the mounting assembly 10 may include a main housing 11, which forms the receiving space 14. The mounting assembly 10 may be provided with a power mechanism (not shown), so that the mounting assembly 10 can push or eject the detection component 20 from the opening 141 onto the surface of the human body by the power mechanism, making the installation operation of the detection component 20 convenient and quick, and improving the usability of the detection device 100.

[0012] The end cap 30 can be made of plastics such as polypropylene (PP), polycarbonate (PC), or polyethylene (PE), or it can be made of metal. Please refer to [link / reference]. Figure 3 , Figure 6 , Figure 7The end cap 30 is rotatably engaged with the mounting assembly 10 around a preset rotation axis 111. The end cap 30 and the mounting assembly 10 are detachably engaged and can seal the opening 141, thereby enclosing the detection assembly 20 within the receiving space 14, which facilitates the transportation and storage of the detection device 100. Exemplarily, the rotation axis 111 can be along... Figure 3 The Z-axis direction is specified. When the end cap 30 rotates relative to the mounting assembly 10 in one direction (e.g., clockwise) to a preset position, the end cap 30 can lock itself to the mounting assembly 10, and can be unlocked when the end cap 30 rotates relative to the mounting assembly 10 in another direction (e.g., counterclockwise). The end cap 30 has a drive member 37 extending outward along the inner bottom wall. Specifically, the end cap 30 includes an end cap body 31 and a drive member 37 connected to the end cap body 31, and the end cap body 31 is rotatably engaged with the mounting assembly 10 (e.g., the main housing 11). The end cap body 31 can be a cylindrical structure with one open end. The drive member 37 has elastic deformation capability. One end of the drive member 37 is connected to the end cap body 31, and the other end extends into the receiving space 14. The drive member 37 can extend in a direction parallel to the rotation axis 111.

[0013] Please see Figure 2 , Figure 3 The detection component 20 includes a detection body 21, a detection needle 22, and a protective element 23. The detection body 21 is detachably mounted to the mounting component 10, allowing it to be separated from the mounting component 10 during use. The detection body 21 may include a housing and components such as a battery and circuit board disposed within the housing. The detection needle 22 protrudes from the detection body 21 and is electrically connected to the detection body 21. When the detection needle 22 is implanted in the human body, it can acquire physiological indicator information (such as glucose levels). This information is processed by the detection body 21 (e.g., the circuit board) and sent to an external receiving device, allowing the user to promptly access physiological indicator information and assist in health management. The battery provides power to the detection component 20 during operation, enabling continuous monitoring of human physiological indicators. The protective element 23 is disposed within the mounting component 10. The protective element 23 covers the periphery of the detection needle 22 to seal it, preventing foreign matter from contaminating the detection needle 22. The protective element 23 is rotatably engaged with a fixing element about a rotation axis 111. The fixing element can be the needle holder 13 or the puncture needle 12 described later, or it can be the detection body 21. When the protective element 23 rotates relative to the fixing element in one direction to a preset position, the protective element 23 can lock itself to the fixing element, and when the protective element 23 rotates relative to the fixing element in another direction, it can be unlocked.

[0014] During the rotation of the end cap body 31 relative to the mounting assembly 10 to disengage from the mounting assembly 10, the drive member 37 drives the protective member 23 to rotate, simultaneously disengaging the protective member 23 from the fixing member. The protective member 23 can then be removed along with the end cap body 31, thereby releasing the seal of the protective member 23 on the detection needle 22. For example, with the end cap 30 facing downwards, after the lock between the protective member 23 and the fixing member is released, the protective member 23 can fall under the influence of gravity, separating from the fixing member and thus releasing the seal on the detection needle 22; or, with the end cap 30 facing upwards, after the lock between the protective member 23 and the fixing member is released, the drive member 37 can engage with the protruding portion of the outer peripheral wall of the protective member 23, allowing the protective member 23 to be pulled out under the action of the end cap body 31, separating from the fixing member and thus releasing the seal on the detection needle 22. With this configuration, when the lock between the end cap body 31 and the mounting component 10 is released, the lock between the protective component 23 and the fixing component can be released simultaneously, which simplifies the unlocking operation of the detection device 100.

[0015] In related technologies, during the assembly of the detection device 100, the protective component 23 is prone to displacement under the action of the driving component 37, thereby affecting the sealing of the protective component 23 on related components (such as the detection needle 22). To solve the above technical problem, the detection device 100 provided in this application also has a limiting arm 34 extending outward along the inner bottom wall inside the end cap 30, such as... Figure 4 , Figure 5 As shown. One end of the limiting arm 34 is connected to the end cap body 31, and the other end extends into the accommodating space 14. The limiting arm 34 may extend in a direction parallel to the rotation axis 111. The limiting arm 34 and the driving member 37 are spaced apart and enclose a cylindrical space 36 for accommodating the protective member 23, and the protective member 23 is partially placed in the cylindrical space 36. During the assembly of the protective member 23 into the cylindrical space 36, there is interference between the protective member 23 and the driving member 37 in the radial direction of the protective member 23. The limiting arm 34 is used to limit the lateral displacement generated during the assembly of the protective member 23 into the cylindrical space 36, so that the limiting arm 34 can provide lateral support for the protective member 23, thereby limiting the offset of the protective member 23 during the assembly of the detection device 100, and ensuring the sealing of the protective member 23 to the relevant components.

[0016] Please see Figure 2 , Figure 3The mounting assembly 10 may also include a puncture needle 12. Exemplarily, the puncture needle 12 passes through the detection body 21. The puncture needle 12 may have a receiving groove extending along the rotation axis 111, and a portion of the detection needle 22 is accommodated within the receiving groove. The puncture needle 12 can assist the detection needle 22 in insertion into the human body. The puncture needle 12 can be connected to the power mechanism of the mounting assembly 10, so that the power mechanism pulls out the puncture needle 12 after it has assisted the detection needle 22 in insertion into the human body. When the puncture needle 12 is provided, a protective member 23 covers the detection needle 22 and the periphery of the puncture needle 12, and the protective member 23 can be rotatably engaged with the puncture needle 12. For example, a connecting portion may be provided at the end of the puncture needle 12 away from the end cap body 31, and the protective member 23 is directly rotatably engaged with the connecting portion of the puncture needle 12. Alternatively, the mounting assembly 10 may also include a needle seat 13, which is connected to one end of the puncture needle 12. The needle seat 13 and the protective member 23 are located on both sides of the detection body 21, and the protective member 23 and the puncture needle 12 are indirectly rotatably engaged through the needle seat 13.

[0017] Understandably, if the detection needle 22 has sufficient strength, it can be inserted into the human body under the action of the power mechanism, and there is no need to set up the puncture needle 12 and the needle seat 13. In this case, the protective member 23 rotates and engages with the detection body 21 to seal the detection needle 22.

[0018] Please see Figure 4 , Figure 6 The drive component 37 may include a drive arm 32 and a drive part 33. One end of the drive arm 32 is connected to the end cap body 31, and the other end extends into the accommodating space 14. The drive part 33 protrudes from the other end of the drive arm 32. The drive arm 32 may extend in a direction parallel to the rotation axis 111. The drive part 33 may be integrally formed with the drive arm 32, or it may be assembled and connected to the drive arm 32.

[0019] In one embodiment, in the direction of the rotation axis 111, the end of the limiting arm 34 facing away from the end cap body 31 is closer to the detection body 21 than the end of the driving member 37 facing away from the end cap body 31. That is, the dimension of the limiting arm 34 in the direction of the rotation axis 111 is larger than the dimension of the driving member 37 in the direction of the rotation axis 111. With this configuration, during the assembly of the protective member 23 into the cylindrical space 36, the protective member 23 can first extend into one end of the receiving space 14 through the limiting arm 34. If an alignment deviation occurs during the assembly operation, the limiting arm 34 can provide lateral support for the protective member 23, thereby limiting the displacement of the protective member 23 during the assembly process of the detection device 100.

[0020] In one embodiment, such as Figure 6As shown, in the direction of the rotation axis 111, one end of the limiting arm 34 facing away from the end cap body 31 and the other end of the driving member 37 facing away from the end cap body 31 are flush. With this arrangement, during the assembly of the protective member 23 into the cylindrical space 36, the free ends of the limiting arm 34 and the driving member 37 surround the outer periphery of the protective member 23. If misalignment occurs during the assembly operation, both the limiting arm 34 and the driving member 37 can provide lateral support for the protective member 23, making the force on the protective member 23 more uniform in the circumferential direction, thereby further reducing the possibility of the protective member 23 shifting during the assembly of the detection device 100.

[0021] Please see Figure 3 , Figure 5 , Figure 7 In one embodiment, both the limiting arm 34 and the driving member 37 have an assembly guide surface 341 at the end away from the end cap body 31. The end of the assembly guide surface 341 away from the end cap body 31 is inclined outward toward the cylindrical space 36 relative to the end near the end cap body 31. The assembly guide surface 341 is used to guide the protective member 23 into the cylindrical space 36. With this configuration, in the reference plane of the vertical rotation axis 111, the size of the cylindrical space 36 formed by the free ends of the driving member 37 and the limiting arm 34 gradually increases from the end near the end cap body 31 to the end away from the end cap body 31. That is, the free ends of the driving member 37 and the limiting arm 34 form an outwardly expanding "flare", which can reduce the resistance when the protective member 23 is assembled into the cylindrical space 36, thereby reducing the possibility of the protective member 23 shifting during the assembly process of the detection device 100.

[0022] The protective element 23 can be a cylindrical structure open at one end to facilitate sealing the detection needle 22. The protective element 23 can be made of plastics such as polypropylene (PP), polycarbonate (PC), or polyethylene (PE), or metal. Please refer to [link to relevant documentation]. Figure 3 , Figure 5 , Figure 7In one embodiment, the protective member 23 includes a protective sleeve 24, a sealing cap 25, and an abutment portion 26. The protective sleeve 24 is rotatably engaged with the fixing member about a rotation axis 111. The protective sleeve 24 covers the periphery of the detection needle 22 to seal the detection needle 22, thereby preventing foreign matter from contaminating the detection needle 22. The sealing cap 25 is disposed along the rotation axis 111 at one end of the protective sleeve 24 near the end cap body 31, and the sealing cap 25 is used to seal one end of the protective sleeve 24. The abutment portion 26 protrudes from the outer peripheral wall of the protective sleeve 24. During the rotation of the protective member 23 by the driving member 37, the driving member 37 abuts against the abutment portion 26 along the circumference of the protective sleeve 24. The sealing cap 25 at least partially protrudes from the outer peripheral wall of the protective sleeve 24 to facilitate the removal of the protective member 23 through the end cap body 31 in cooperation with the driving member 37. The outer peripheral wall of the sealing cover 25 is provided with a mating surface 253 for engaging with the assembly guide surface 341. The end of the mating surface 253 near the end cover body 31 is inclined toward the rotation axis 111 relative to the end away from the end cover body 31. This arrangement makes the sealing cover 25 have a variable cross-section in the direction of the rotation axis 111, which can reduce the amount of interference between the sealing cover 25 and the driving member 37 in the radial direction of the protective sleeve 24, further reducing the resistance when the protective member 23 is assembled into the cylindrical space 36, thereby reducing the possibility of the protective member 23 shifting during the assembly process of the detection device 100.

[0023] The sealing cap 25 and the protective sleeve 24 can be integrally formed. Or, as... Figure 5 As shown, in one embodiment, the sealing cap 25 is assembled with the protective sleeve 24. The assembly connection between the sealing cap 25 and the protective sleeve 24 allows the material of the sealing cap 25 to be different from the materials of the protective sleeve 24 and the abutment portion 26. For example, the material of the sealing cap 25 can be silicone or rubber with good elasticity. This allows the elastic deformation of the sealing cap 25 to seal the protective sleeve 24, thereby enhancing the airtightness of the protective component 23; and the larger deformation of the sealing cap 25 can reduce interference between the sealing cap 25 and other components during the assembly of the detection device 100, thus facilitating the assembly of the detection device 100.

[0024] Please see Figure 5In one embodiment, the sealing cap 25 includes a plug 251 and a sealing cap 252 integrally connected. The plug 251 is inserted into the protective sleeve 24 with an interference fit to seal the protective sleeve 24. The sealing cap 252 abuts against one end of the protective sleeve 24, thereby further sealing the protective sleeve 24 from the end, which can enhance the airtightness of the protective sleeve 24. The sealing cap 252 protrudes from the outer peripheral wall of the protective sleeve 24, so that the sealing cap 252 can cooperate with the drive member 37 to separate the protective member 23 from the detection needle 22. The mating surface 253 is provided on the outer peripheral wall of the sealing cap 252 to reduce the resistance when the sealing cap 25 is assembled into the cylindrical space 36, thereby reducing the possibility of the sealing cap 25 shifting during the assembly of the detection device 100.

[0025] In one embodiment, within a reference section passing through the rotation axis 111, the angle formed by the assembly guide surface 341 and the rotation axis 111 is equal to the angle formed by the mating surface 253 and the rotation axis 111. With this configuration, if alignment deviations occur during the assembly of the protective component 23 into the cylindrical space 36, when the mating surface 253 abuts against the assembly guide surface 341, since the two surfaces have the same inclination angle, even small assembly errors can be corrected by sliding on the inclined surface, thereby reducing the possibility of the sealing cover 25 shifting during the assembly of the detection device 100.

[0026] The end of the drive unit 33 away from the end cap body 31 can be a certain distance from the end of the free end of the drive arm 32. The assembly guide surface 341 is set on the drive arm 32 without extending to the drive unit 33. The sealing cap 25 interferes with the drive unit 33 after sliding past the assembly guide surface 341. At this time, the sealing cap 252 has completely entered the cylindrical space 36. The sealing cap 252 has lateral support provided by the limit arm 34 and the drive arm 32 in multiple directions around the outer periphery, so that the sealing cap 25 is subjected to more uniform force in the circumferential direction, thereby better limiting the displacement of the sealing cap 25 during the assembly process of the detection device 100.

[0027] In one embodiment, such as Figure 7 As shown, the assembly guide surface 341 extends from the end of the drive arm 32 away from the end cap body 31 to the drive section 33. This arrangement, on the one hand, creates a smooth transition between the free end of the drive arm 32 and the drive section 33, reducing the resistance when the sealing cap 25 slides towards the drive section 33, thereby reducing the possibility of the sealing cap 25 shifting during the assembly of the detection device 100; on the other hand, it allows the drive section 33 to be closer to the free end of the drive arm 32, thereby reducing the size of the drive arm 32 in the direction of the rotation axis 111, which is beneficial for miniaturization of the detection device 100.

[0028] Please see Figure 4 , Figure 7 , Figure 8 In one embodiment, the drive unit 33 is provided with a rotation guide surface 333. When the end cap body 31 rotates relative to the mounting assembly 10 to engage with the mounting assembly 10, the rotation guide surface 333 guides the abutment portion 26 from the first side 331 to the second side 332 of the drive unit 33. The protrusion dimension of the drive unit 33 relative to the drive arm 32 gradually increases from the first side 331 to the second side 332. When the end cap body 31 rotates relative to the mounting assembly 10 to disengage from the mounting assembly 10, the second side 332 of the drive unit 33 abuts against the abutment portion 26 along the circumference of the protective sleeve 24. With this configuration, when the end cap body 31 rotates relative to the mounting assembly 10 to engage with the mounting assembly 10, the interference dimension between the drive part 33 and the abutment part 26 gradually increases from the first side 331 to the second side 332 in the radial direction of the protective sleeve 24. The rotation guide surface 333 forms a smooth transition between the first side 331 and the second side 332, which can reduce the resistance of the abutment part 26 to the drive part 33, making the relative movement between the drive part 33 and the abutment part 26 smoother, thereby facilitating the assembly of the end cap 30.

[0029] In one embodiment, the lateral bending stiffness of the limiting arm 34 is greater than that of the driving arm 32 in the radial direction of the protective sleeve 24. With this configuration, on the one hand, the drive unit 33 is mounted on the drive arm 32. When the sealing cap 25 slides toward the drive unit 33, since the lateral bending stiffness of the drive arm 32 is less than that of the limiting arm 34, the drive arm 32 is more likely to deform in the radial direction of the protective sleeve 24. This reduces the interference between the sealing cap 252 and the drive unit 33, thereby reducing the resistance when the sealing cap 25 is assembled into the cylindrical space 36, and further reducing the possibility of the sealing cap 25 shifting during the assembly of the detection device 100. On the other hand, when the sealing cap 252 is squeezed by the drive unit 33, the sealing cap 252 deforms in the direction of the limiting arm 34. Since the lateral bending stiffness of the limiting arm 34 is greater than that of the drive arm 32, the deformation of the limiting arm 34 in the radial direction of the protective sleeve 24 is smaller. The limiting arm 34 can provide good lateral support for the sealing cap 25, thereby reducing the possibility of the sealing cap 25 shifting during the assembly of the detection device 100.

[0030] In one embodiment, in the radial direction of the protective sleeve 24, the size of the limiting arm 34 is larger than the size of the driving arm 32, that is, the sidewall thickness of the limiting arm 34 is greater than the sidewall thickness of the driving arm 32, so that the lateral bending stiffness of the limiting arm 34 is greater than the lateral bending stiffness of the driving arm 32.

[0031] In one embodiment, such as Figure 6As shown, the end cap 30 also includes a reinforcing rib 35, which is connected to the limiting arm 34. The reinforcing rib 35 is used to improve the lateral bending stiffness of the limiting arm 34, so that the lateral bending stiffness of the limiting arm 34 is greater than that of the driving arm 32. Compared with improving the lateral bending stiffness by changing the wall thickness, the reinforcing rib 35 can be set in a local area of ​​the limiting arm 34, such as at the fixed end of the limiting arm 34 where the force is greater, which can save material usage and thus reduce costs.

[0032] The reinforcing rib 35 may be provided on one side of the outer wall and the inner wall of the limiting arm 34. Alternatively, please refer to Figure 7 In one embodiment, reinforcing ribs 35 are disposed on the outer and inner walls of the limiting arm 34. The reinforcing ribs 35 include a first reinforcing rib 351 and a second reinforcing rib 352. The first reinforcing rib 351 connects to the outer wall of the limiting arm 34, and the second reinforcing rib 352 connects to the inner wall of the limiting arm 34, which can further increase the lateral bending stiffness of the limiting arm 34. Furthermore, the second reinforcing rib 352 can also limit the displacement of the sealing cap 25 relative to the protective sleeve 24 in the direction of the rotation axis 111, preventing the sealing cap 25 from falling off due to vibration or negative pressure during transportation.

[0033] The first reinforcing rib 351 and the second reinforcing rib 352 may be arranged at the same height in the direction of the rotation axis 111. Alternatively, in one embodiment, such as Figure 7 As shown, in the direction of the rotation axis 111, the maximum distance from the end of the second reinforcing rib 352 away from the end cap body 31 to the end cap body 31 is less than the maximum distance from the end of the first reinforcing rib 351 away from the end cap body 31 to the end cap body 31. This arrangement results in a relatively small extension length of the second reinforcing rib 352 located on the inner wall of the limiting arm 34 in the direction of the detection body 21, which can reduce the occupation of the cylindrical space 36 by the second reinforcing rib 352, thereby reducing the size of the limiting arm 34 in the direction of the rotation axis 111, which is beneficial to the miniaturization of the detection device 100.

[0034] The number of driving components 37 and limiting arms 34 can be one each. The small number of driving components 37 and limiting arms 34 makes it easier to process the end cap 30.

[0035] Please see Figure 4In one embodiment, multiple driving members 37 and limiting arms 34 are provided, and the limiting arms 34 and driving members 37 are alternately arranged around the periphery of the protective sleeve 24. The number of driving members 37 and limiting arms 34 can be two, three, or more. Multiple limiting arms 34 and multiple driving members 37 surround the periphery of the protective sleeve 24, and the limiting arms 34 and driving members 37 can provide lateral support to the sealing cover 25 in multiple directions, making the force on the sealing cover 25 more uniform in the circumferential direction, thereby better limiting the displacement of the sealing cover 25 during the assembly process of the detection device 100. Multiple driving members 37 and multiple limiting arms 34 can be evenly arranged around the periphery of the protective sleeve 24, making the force on the sealing cover 25 uniform in the circumferential direction.

[0036] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A detection device, characterized in that, include: The mounting components are configured as a hollow structure with an opening at one end; Protective components are disposed within the mounting assembly; An end cap is detachably connected to the mounting assembly and can seal the opening. The end cap has a drive member and a limiting arm extending outward along the inner bottom wall. The drive member and the limiting arm are spaced apart and enclose a cylindrical space for accommodating the protective member. The end cap is rotatably engaged with the mounting assembly around a preset rotation axis, the protective component is partially placed within the cylindrical space, and the limiting arm is used to limit the lateral displacement generated during the assembly of the protective component into the cylindrical space.

2. The detection device according to claim 1, characterized in that, The end cap includes an end cap body, which is rotatably engaged with the mounting assembly, and the drive member and the limiting arm are connected to the end cap body.

3. The detection device according to claim 2, characterized in that, The limiting arm and the drive component are both provided with an assembly guide surface at the end away from the end cap body. The end of the assembly guide surface away from the end cap body is inclined towards the outside of the cylindrical space relative to the end close to the end cap body. The assembly guide surface is used to guide the protective component to be assembled into the cylindrical space.

4. The detection device according to claim 2, characterized in that, In the direction of the rotation axis, the end of the limiting arm opposite to the end cap body is flush with the end of the driving member opposite to the end cap body.

5. The detection device according to claim 3, characterized in that, The protective component includes a protective sleeve and a sealing cap, the sealing cap at least partially protruding from the outer peripheral wall of the protective sleeve, and the sealing cap is used to seal one end of the protective sleeve; The outer peripheral wall of the sealing cover is provided with a mating surface for engaging with the assembly guide surface. The end of the mating surface closer to the end cover body is inclined toward the rotation axis relative to the end farther away from the end cover body.

6. The detection device according to claim 5, characterized in that, The sealing cap includes a plug body and a sealing cap connected as one piece. The plug body is inserted into the protective sleeve in an interference fit manner. The sealing cap abuts against one end of the protective sleeve and protrudes from the outer peripheral wall of the protective sleeve. The mating surface is provided on the outer peripheral wall of the sealing cap.

7. The detection device according to claim 5, characterized in that, Within a reference section passing through the axis of rotation, the angle formed by the assembly guide surface and the axis of rotation is equal to the angle formed by the mating surface and the axis of rotation.

8. The detection device according to claim 3, characterized in that, The driving component includes a driving arm and a driving part. One end of the driving arm is connected to the end cap body, and the driving part protrudes from the other end of the driving arm. The assembly guide surface extends from the end of the drive arm away from the end cap body to the drive unit.

9. The detection device according to claim 5, characterized in that, The end cap also includes a reinforcing rib, which is connected to the limiting arm and is used to improve the lateral bending stiffness of the limiting arm.

10. The detection device according to claim 9, characterized in that, The reinforcing ribs include a first reinforcing rib and a second reinforcing rib. The first reinforcing rib is connected to the outer wall of the limiting arm, and the second reinforcing rib is connected to the inner wall of the limiting arm.

11. The detection device according to claim 10, characterized in that, In the direction of the rotation axis, the maximum distance from the end of the second reinforcing rib away from the end cap body to the end cap body is less than the maximum distance from the end of the first reinforcing rib away from the end cap body to the end cap body.

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