Storage box

Abstract

The application provides a storage box for storing a water measuring device assembly, the water measuring device assembly comprising a syringe and a water measuring film. The water measuring film is detachably mounted on the needle of the syringe. The storage box comprises a cover and a box body. The cover is rotatably covered on the box body. The box body comprises a first receiving part and a second receiving part which are concave downward from the top surface of the box body. The first receiving part is used for storing the syringe. The second receiving part is used for storing a plurality of water measuring films arranged in the vertical direction. Thus, the syringe and the water measuring film with small volume can be prevented from being damaged or lost, and the syringe and the water measuring film are convenient to access.

Description

Technical Field

[0001] This application relates to the field of aviation fuel testing technology, and in particular to a storage box. Background Technology

[0002] Aviation fuel, as a critical energy source for aircraft, is vital to aviation safety. However, during transportation and storage, moisture can easily seep into the fuel, and excessive moisture content can affect fuel performance and safety. Water content in fuel can be detected using a water meter assembly. However, the water meter diaphragm and syringe in this assembly are small, difficult to store and access, and prone to damage or loss. Summary of the Invention

[0003] This application provides a storage box for easy access to water meter components.

[0004] This application provides a storage box for storing a water meter assembly, the water meter assembly including a syringe and a water metering diaphragm; the water metering diaphragm is detachably mounted to the needle of the syringe; the storage box includes a cover and a box body;

[0005] The cover is rotatably fitted onto the box body; the box body includes a first receiving portion and a second receiving portion recessed downward from the top surface of the box body; the first receiving portion is used to receive the syringe; the second receiving portion is used to receive a plurality of water measuring membranes arranged in a vertical direction.

[0006] Optionally, the first receiving portion includes a first recess and a second recess; the first recess is formed by recessing downward from the top surface of the housing; the second recess is formed by recessing downward from the bottom surface of the first recess; wherein the second recess is used to receive the syringe barrel.

[0007] Optionally, the first receiving portion further includes a third recess; the third recess is formed by recessing downward from the bottom surface of the first recess; the recess depth of the third recess is less than the recess depth of the second recess; wherein the third recess is used to receive the handle of the syringe; and / or

[0008] The bottom surface of the second recess has a mounting hole for receiving the needle of the syringe.

[0009] Optionally, the box body further includes a third receiving portion formed by a downward recess from the top surface of the box body. The side wall of the third receiving portion is provided with a disassembly groove for communicating with the outside. The disassembly groove is formed by a downward recess from the top surface of the box body. The third receiving portion is used to store the water measuring membrane after use.

[0010] Optionally, the bottom surface of the third receiving part is provided with a through hole for communicating with the outside; the box body also includes a rotating cover rotatably connected to the through hole; when the rotating cover is opened, the through hole is used to discharge the water measuring membrane after use.

[0011] Optionally, the number of the second receiving parts is at least two; the first receiving part and at least two second receiving parts are arranged along a first direction; at least two second receiving parts are arranged along a second direction; wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

[0012] Optionally, the housing further includes a receiving groove that is recessed downward from the top surface of the housing and extends circumferentially along the second receiving portion; the receiving groove is used to receive a sealing ring.

[0013] Optionally, the cover includes a protrusion with a limiting recess. When the cover is closed on the box, the limiting recess is used to receive at least a portion of the water-measuring membrane, and the protrusion is used to press against the sealing ring received in the receiving groove.

[0014] Optionally, the bottom of the second receiving portion is provided with a drying element for drying the water-measuring diaphragm; and / or

[0015] The side wall of the box is provided with a viewing window corresponding to the position of the second receiving part, and the viewing window extends along the vertical direction; the viewing window is transparent or semi-transparent.

[0016] Optionally, the box body further includes a first magnetic element, and the cover body further includes a second magnetic element; the box body and the cover body are magnetically attracted by the first magnetic element and the second magnetic element so that the cover body closes to the box body.

[0017] The storage box provided in this application is used to store water meter components. The box body includes a first receiving portion and a second receiving portion recessed downwards from the top surface of the box body. The first receiving portion and the second receiving portion are simple to manufacture. The first receiving portion is used to store the syringe, and the second receiving portion is used to store multiple water metering membranes arranged in a vertical direction. This can prevent damage or loss of the small syringe and water metering membranes, and facilitate the storage and retrieval of the syringe and water metering membranes.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

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

[0020] Figure 1 The image shown is a perspective view of a storage box according to an exemplary embodiment of this application;

[0021] Figure 2 As shown Figure 1 The side view of the storage box shown;

[0022] Figure 3 As shown Figure 1 The bottom view of the storage box shown;

[0023] Figure 4 As shown Figure 1 A three-dimensional schematic diagram of the storage box shown;

[0024] Figure 5 As shown Figure 4 The top view of the box shown;

[0025] Figure 6 As shown Figure 4 The box shown is a bottom view.

[0026] Figure 7 As shown Figure 1 The top view of the lid of the storage box shown. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. 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.

[0028] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0030] This application provides a storage box. The storage box of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0031] See Figures 1 to 6 As shown, the storage box 10 is used to store the water content meter assembly. The water content meter assembly can be used to detect the moisture content in fuel. The water content meter assembly includes a syringe and a water content metering diaphragm, the diaphragm being detachably mounted to the needle of the syringe. The water content metering diaphragm may have a recessed portion into which the syringe needle can extend, thus mounting the water content metering diaphragm to the syringe needle. When the water content metering diaphragm is mounted to the syringe needle, the syringe can inject fuel into the water content metering diaphragm, and the moisture content in the fuel can be determined by the water content metering diaphragm.

[0032] See also Figure 1 , Figure 2 and Figure 3As shown, the storage box 10 includes a lid 11 and a box body 12. The lid 11 is rotatably fitted onto the box body 12. The lid 11 is rotatably disposed on the box body 12. The lid 11 can be fitted onto the box body 12 to prevent dust, and the lid 11 can also be opened to remove the water meter assembly from the box body 12. In some embodiments, the lid 11 includes a lid body portion 39 and a first connecting portion 40, and the box body 12 includes a box body portion 41 and a second connecting portion 42. The first connecting portion 40 extends outward and downward from the lid body portion 39. The second connecting portion 42 extends outward and upward from the box body portion 41. The first connecting portion 40 is pivotally connected to the second connecting portion 42, so that the lid 11 is rotatably disposed on the box body 12.

[0033] See also Figure 4 and Figure 5 As shown, the box body 12 includes a first receiving portion 13 and a second receiving portion 14 recessed downwards from the top surface of the box body 12. The shapes of the first receiving portion 13 and the second receiving portion 14 can be cuboid, cylinder, etc. The first receiving portion 13 is used to store the syringe. The second receiving portion 14 is used to store multiple water-measuring membranes arranged vertically in a Z-direction. The recessed portions of the multiple water-measuring membranes can be oriented upwards. The size and shape of the second receiving portion 14 can be adapted to the water-measuring membranes. The water-measuring membranes can be directly stored in the second receiving portion 14, or they can be placed in a water-measuring membrane storage box, which is then stored in the second receiving portion 14. The water-measuring membranes stored in the second receiving portion 14 are arranged vertically in a Z-direction, allowing the syringe needle to extend into the second receiving portion 14 and be directly installed onto the water-measuring membrane, thus enabling rapid installation of the water-measuring membranes.

[0034] The storage box 10 of this application can be used to store water testing components. The box body 12 includes a first receiving portion 13 and a second receiving portion 14 recessed downward from the top surface of the box body 12. The first receiving portion 13 and the second receiving portion 14 are simple to manufacture. The first receiving portion 13 is used to store the syringe, and the second receiving portion 14 is used to store multiple water testing membranes arranged in a vertical Z-direction. This can prevent damage or loss of the small syringe and water testing membranes, and facilitate the storage and retrieval of the syringe and water testing membranes.

[0035] In some embodiments, the housing 12 further includes a third receiving portion 15 recessed downward from the top surface of the housing 12. The shape of the third receiving portion 15 can be a cuboid, cylinder, etc., and this application is not limited thereto. The side wall of the third receiving portion 15 is provided with a disassembly groove 16 for communicating with the outside world. The disassembly groove 16 can be located on the side wall of the third receiving portion 15 in the first direction X. The disassembly groove 16 can communicate between the third receiving portion 15 and the external environment in the first direction X. The disassembly groove 16 is formed by recessing downward from the top surface of the housing 12. The bottom surface of the disassembly groove 16 can be a plane or an arc surface. The third receiving portion 15 is used to store the used water testing membrane. The water testing membrane is a single-use item. After the water testing membrane verification is completed, it needs to be removed from the syringe needle and collected uniformly. The third receiving portion 15 can store the used water testing membrane, solving the problem of storage and recycling of the used water testing membrane. This design protects the environment and prevents oil-containing water-measuring diaphragms from causing pollution. In the second direction Y, perpendicular to both the first direction X and the vertical direction Z, the size of the disassembly / removal slot 16 is smaller than the size of the third receiving section 15. This makes the size of the third receiving section 15 suitable, allowing it to accommodate more water-measuring diaphragms.

[0036] In some embodiments, the size of the disassembly groove 16 in the second direction Y ranges from 9mm to 10mm. This size of the disassembly groove 16 is suitable, as it is smaller than the size of the water-measuring membrane. When it is necessary to disassemble the water-measuring membrane, a syringe containing the membrane can be inserted vertically in the Z direction. With the syringe needle positioned within the disassembly groove 16 and the water-measuring membrane positioned within the third receiving portion 15, pulling the syringe causes the surface of the water-measuring membrane facing the syringe to press against the inner wall of the third receiving portion 15 where the disassembly groove 16 is located. This separates the syringe needle from the water-measuring membrane, allowing the separated membrane to fall directly into the third receiving portion 15. This facilitates the removal of the water-measuring membrane from the syringe needle, enabling quick disassembly and storage of the used water-measuring membrane. The ability to quickly install and disassemble the membrane after testing improves work efficiency.

[0037] See also Figure 3 , Figure 5 and Figure 6As shown, in some embodiments, the bottom surface of the third receiving part 15 is provided with a through hole 17 for communicating with the outside. The through hole 17 can be a circular hole. The through hole 17 connects the third receiving part 15 and the external environment in the vertical direction Z. The size of the through hole 17 can be larger than the size of the water measuring membrane. The housing 12 also includes a rotating cover 18 rotatably connected to the through hole 17. The inner wall of the through hole 17 and the outer wall of the rotating cover 18 can be provided with threads, so that the through hole 17 and the rotating cover 18 can be rotatably connected. The rotating cover 18 can be removed by rotating it, so that the used water measuring membrane located in the third receiving part 15 can be discharged and recycled. The rotating cover 18 can be installed on the through hole 17 and sealed at the through hole 17 by rotating it, so that the used water measuring membrane can be stored in the third receiving part 15. This setting is simple to operate and has high reliability.

[0038] In some embodiments, the bottom surface of the third receiving portion 15 is flat. This facilitates cleaning of the third receiving portion 15. In other embodiments, the bottom surface of the third receiving portion 15 extends downward at an angle from the side wall on the side where the disassembly groove 16 is provided, toward the through hole 17. This facilitates the discharge of the water membrane after use.

[0039] In some embodiments, the rotating cover 18 includes a main body 19 and a handle 20. The main body 19 is rotatably connected to a through hole 17. The main body 19, which mates with the through hole 17, can be circular. The handle 20 is connected to one side of the main body 19. The handle 20 facilitates user operation; the user can rotate the handle 20 to rotate the main body 19, thereby facilitating the assembly and disassembly of the rotating cover 18.

[0040] See also Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the number of second receiving portions 14 is at least two, which can store more water-measuring membranes. In this embodiment, the number of second receiving portions 14 is two. The first receiving portion 13 and at least two second receiving portions 14 are arranged along a first direction X. In the first direction X, the first receiving portion 13 is located on one side of the housing 12, and the at least two second receiving portions 14 are located on the other side of the housing 12. The at least two second receiving portions 14 are arranged along a second direction Y. The at least two second receiving portions 14 are arranged at intervals along the second direction Y. Wherein, the first direction X, the second direction Y, and the vertical direction Z are perpendicular to each other. By placing the first receiving portion 13 and the second receiving portion 14 on opposite sides of the housing 12, the space of the housing 12 is effectively utilized, making the layout more compact and reasonable.

[0041] In some embodiments, at least two second receiving portions 14 include a first sub-receiving portion 21 and a second sub-receiving portion 22. The first sub-receiving portion 21 and the second sub-receiving portion 22 have the same shape and volume, resulting in a more aesthetically pleasing appearance. In the second direction Y, a third receiving portion 15 is located between the first sub-receiving portion 21 and the second sub-receiving portion 22. The disassembly / assembly slot 16 can be provided on the side wall of the third receiving portion 15 in the first direction X, away from the first receiving portion 13. This layout is more compact and has a higher space utilization rate.

[0042] In some embodiments, the first receiving portion 13 includes a first recess 23 and a second recess 24. The first recess 23 is formed by recessing downward from the top surface of the housing 12. The shape of the first recess 23 can be cuboid. The intersection of the two sides of the first recess 23 can be rounded. The second recess 24 is formed by recessing downward from the bottom surface of the first recess 23. The depth of the first recess 23 can be between 16 mm and 20 mm. The depth of the second recess 24 can be between 90 mm and 100 mm. The shape of the second recess 24 can be cylindrical. The depth of the first recess 23 can be less than the depth of the second recess 24. The second recess 24 is used to receive the syringe barrel. Thus, the syringe can be completely received within the first recess 23.

[0043] In some embodiments, the first receiving portion 13 further includes a third recess 25. The third recess 25 is formed by recessing downward from the bottom surface of the first recess 23. The second recess 24 may be formed by recessing downward from the bottom surface of the third recess 25. The depth of the third recess 25 is less than the depth of the second recess 24. The depth of the third recess 25 can range from 4 mm to 6 mm. The third recess 25 is used to receive the handle of the syringe. This allows for better reception of the syringe.

[0044] In some embodiments, the bottom surface of the second recess 24 is provided with a mounting hole 26 for receiving the needle of the syringe (e.g., Figure 6 (As shown). The center of the mounting hole 26 can coincide with the center of the second recess 24. The mounting hole 26 can penetrate the housing 12, meaning it can be a through hole. Alternatively, the mounting hole 26 can be a blind hole. This facilitates the storage of the syringe. The diameter of the mounting hole 26 can be larger than the diameter of the syringe needle to prevent the needle from being bumped or knocked during placement.

[0045] In some embodiments, the housing 12 further includes a receiving groove 27 recessed downward from the top surface of the housing 12 and extending circumferentially along the second receiving portion 14. The depth of the receiving groove 27 can range from 0.9 mm to 1.3 mm. Viewed vertically downward in the Z direction, the shape of the receiving groove 27 can be square. The receiving groove 27 can surround the outside of the second receiving portion 14. The receiving groove 27 is used to receive a sealing ring. The sealing ring can be at least partially located within the receiving groove 27 and at least partially protruding from the receiving groove 27. Moisture on the water-measuring membrane can affect the measurement results. When the cover 11 is closed on the housing 12, the sealing ring can seal the outside of the second receiving portion 14, which can prevent moisture. This can prevent the water-measuring membrane stored in the second receiving portion 14 from getting damp, thereby making the detection results of the water-measuring membrane more accurate.

[0046] See Figure 7 As shown, in some embodiments, the cover 11 includes a protrusion 28 with a limiting recess 29. When the cover 11 is closed on the box 12, the limiting recess 29 is used to receive at least a portion of the water-measuring membrane, and the protrusion 28 is used to press against the sealing ring received in the receiving groove 27. The limiting recess 29 can receive at least a portion of the water-measuring membrane, thus accommodating more water-measuring membranes. When the cover 11 is closed on the box 12, if the water-measuring membrane is placed in a water-measuring membrane storage box, the top of the water-measuring membrane storage box can also be accommodated within the limiting recess 29. Furthermore, when the cover 11 is closed on the box 12, the protrusion 28 can press against the sealing ring, resulting in a better sealing effect.

[0047] In some embodiments, the bottom of the second receiving portion 14 is provided with a drying element for drying the water-measuring membrane. The drying element can be a desiccant, such as activated carbon desiccant, silica gel desiccant, etc. The drying element can be located between the bottom of the second receiving portion 14 and the water-measuring membrane. This can dry the water-measuring membrane and is more conducive to the moisture prevention of the water-measuring membrane.

[0048] See you again Figures 1 to 6As shown, in some embodiments, a viewing window 30 is provided on the side wall of the housing 12 corresponding to the position of the second receiving portion 14, and the viewing window 30 extends in the vertical direction Z. Specifically, the housing 12 may have a viewing window 30 extending in the vertical direction Z on its side wall in the second direction Y. In this embodiment, there are two second receiving portions 14 and two viewing windows 30, with the two viewing windows 30 positioned on opposite sides of the housing 12 in the second direction Y. The size of the viewing window 30 in the first direction X can be less than or equal to the size of the water-measuring membrane. The size of the viewing window 30 in the vertical direction Z can be greater than or equal to the depth of the second receiving portion 14. A mounting groove 31 may be provided on the side wall of the housing 12 corresponding to the position of the second receiving portion 14, and the viewing window 30 can be disposed within the mounting groove 31. The viewing window 30 is transparent or semi-transparent. This allows the user to observe the viewing window 30 to determine the remaining amount of the water-measuring membrane, thereby enabling timely replenishment of the water-measuring membrane. In other embodiments, the housing 12 may be transparent or semi-transparent. This makes it easy to observe the number of water-measuring membranes, allowing for timely replenishment.

[0049] In some embodiments, the side wall of the housing 12 is provided with multiple scale lines 38 corresponding to the position of the viewing window 30, and the multiple scale lines 38 are evenly spaced along the vertical direction Z. This makes it easy for the user to identify the remaining amount of the water measuring membrane.

[0050] In this embodiment, the user can determine the remaining amount of the water-measuring membrane by observing the viewing window 30. After confirming that there is enough water-measuring membrane, the user opens the cover 11, removes the syringe from the first receiving part 13, and directly installs the water-measuring membrane located in the second receiving part 14 onto the syringe needle. Fuel can be injected into the water-measuring membrane through the syringe to determine the water content of the fuel. After the measurement, the effectiveness of the water-measuring membrane is checked. After the check, the syringe needle and the used water-measuring membrane are separated through the disassembly slot 16. The used water-measuring membrane can be directly dropped into the third receiving part 15, and the syringe can be returned to the first receiving part 13. Finally, the cover 11 is closed onto the box 12.

[0051] In some embodiments, the housing 12 is provided with a clamping portion 32 on one side along the first direction X (e.g., Figure 2 (As shown). The clamping part 32 and the disassembly groove 16 can be provided on opposite sides of the box body 12 along the first direction X. The clamping part 32 makes it easy for the user to hold the box and facilitates the placement of the storage box 10 without taking up extra space.

[0052] In some embodiments, a decorative ring 35 is provided on the top of the box body 12 and extends circumferentially along the box body 12. The top surface of the decorative ring 35 may be flush with the top surface of the box body 12. When the cover 11 is closed on the box body 12, the sidewall of the cover 11 is flush with the side of the decorative ring 35. This improves the aesthetics. The decorative ring 35 has a notch 36 on one side along the first direction X. This facilitates the user in opening the cover 11.

[0053] In some embodiments, a raised edge 37 is provided that protrudes upward from the top surface of the decorative ring 35 and extends along the extending direction of the decorative ring 35. When the cover 11 is closed on the box body 12, the inner surface of the cover 11 abuts against the outer surface of the raised edge 37. This provides a good fit.

[0054] See Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments, the box body 12 further includes a first magnetic element 33, and the cover 11 further includes a second magnetic element 34. The first magnetic element 33 and the second magnetic element 34 can be magnets. The shapes of the first magnetic element 33 and the second magnetic element 34 can be cubes, cuboids, cylinders, etc. The first magnetic element 33 can be disposed on one side of the box body 12 along the first direction X. The cover 11 can be rotatably disposed on the box body 12. The first magnetic element 33 can be disposed on the side of the box body 12 away from the axis of rotation. The number of first magnetic elements 33 can be at least two. In this embodiment, the number of first magnetic elements 33 is two. At least two first magnetic elements 33 are arranged at intervals along the second direction Y and disposed on opposite sides of the third receiving portion 15 along the second direction Y. The first magnetic elements 33 and the second magnetic elements 34 can be correspondingly arranged. The box body 12 and the cover 11 are magnetically attracted by the first magnetic elements 33 and the second magnetic elements 34, so that the cover 11 closes to the box body 12. The installation method of the cover 11 and the box 12 is simple and highly reliable.

[0055] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0056] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A storage box, characterized in that, The storage box is used to house a water testing device assembly, which includes a syringe and a water testing diaphragm. The water testing diaphragm is detachably mounted to the needle of the syringe. The water testing diaphragm has a groove into which the needle of the syringe extends to mount the water testing diaphragm to the needle of the syringe. The storage box includes a cover and a box body. The cover is rotatably fitted onto the box body; the box body includes a first receiving portion and a second receiving portion recessed downward from the top surface of the box body; the first receiving portion is used to receive the syringe; the second receiving portion is used to receive a plurality of water measuring membranes arranged in a vertical direction; the grooves of the plurality of water measuring membranes are arranged upward; The box body also includes a third receiving portion formed by a downward recess from the top surface of the box body. The side wall of the third receiving portion is provided with a disassembly groove for communicating with the outside world. The disassembly groove communicates the third receiving portion with the external environment in a first direction. The disassembly groove is formed by a downward recess from the top surface of the box body. The third receiving portion is used to store the water measuring membrane after use. The shape of the third receiving portion is a cuboid or a cylinder. In a second direction perpendicular to both the first and vertical directions, the size of the disassembly groove is smaller than the size of the third receiving portion; and in the second direction, the size of the disassembly groove ranges from 9mm to 10mm.

2. The storage box according to claim 1, characterized in that, The first receiving portion includes a first recess and a second recess; the first recess is formed by recessing downward from the top surface of the housing; the second recess is formed by recessing downward from the bottom surface of the first recess; wherein the second recess is used to receive the syringe barrel.

3. The storage box according to claim 2, characterized in that, The first receiving portion further includes a third recess; the third recess is formed by recessing downward from the bottom surface of the first recess; the recess depth of the third recess is less than the recess depth of the second recess; wherein the third recess is used to receive the handle of the syringe; and / or The bottom surface of the second recess has a mounting hole for receiving the needle of the syringe.

4. The storage box according to claim 1, characterized in that, The bottom surface of the third receiving part is provided with a through hole for communicating with the outside; the box body also includes a rotating cover rotatably connected to the through hole; when the rotating cover is opened, the through hole is used to discharge the water measuring membrane after use.

5. The storage box according to claim 1, characterized in that, The number of the second receiving parts is at least two; the first receiving part and at least two second receiving parts are arranged along a first direction; at least two second receiving parts are arranged along a second direction; wherein the first direction, the second direction and the vertical direction are perpendicular to each other.

6. The storage box according to claim 1, characterized in that, The housing also includes a receiving groove that is recessed downward from the top surface of the housing and extends circumferentially along the second receiving portion; the receiving groove is used to receive a sealing ring.

7. The storage box according to claim 6, characterized in that, The cover includes a protrusion with a limiting recess. When the cover is closed on the box, the limiting recess is used to receive at least part of the water measuring membrane, and the protrusion is used to press against the sealing ring accommodated in the receiving groove.

8. The storage box according to claim 1, characterized in that, The bottom of the second receiving section is provided with a drying element for drying the water-measuring diaphragm; and / or The side wall of the box is provided with a viewing window corresponding to the position of the second receiving part, and the viewing window extends along the vertical direction; the viewing window is transparent or semi-transparent.

9. The storage box according to claim 1, characterized in that, The box body further includes a first magnetic element, and the cover body further includes a second magnetic element; the box body and the cover body are magnetically attracted by the first magnetic element and the second magnetic element, so that the cover body closes to the box body.

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