Waterproof door assembly and electronic device

Abstract

The application discloses a waterproof door assembly and an electronic device, and belongs to the technical field of electronic device design. The waterproof door assembly comprises a cover plate, an assembling shaft and a fixing member. The assembling shaft is connected to the cover plate, so that the cover plate can rotate relative to the assembling shaft. The assembling shaft comprises an axial groove, a buckle structure and a fixing structure. The axial groove is connected to the cover plate and comprises a first end portion and a second end portion. The buckle structure is connected to one side of the axial groove relative to the cover plate and extends to the first end portion of the axial groove. The buckle structure can be buckled to the shell. The fixing structure is connected to one side of the axial groove relative to the cover plate and is close to the second end portion of the axial groove. The fixing member penetrates through the fixing structure and is fixed to the shell. Each waterproof door assembly can be independently installed on the shell, so that the waterproof door assembly can be independently maintained or replaced.

Description

Technical Field

[0001] The present invention relates to the field of electronic device technology, and in particular to a waterproof door assembly and electronic device. Background Technology

[0002] As electronic devices offer a wider range of functions, they typically have multiple openings on their bodies to provide cable connections or expand device connectivity. To provide waterproofing or dustproofing for these openings, they are usually equipped with covers so that users can close them when not in use.

[0003] In electronic devices with numerous openings, the current door cover design connects two covers to the same pivot, which is then locked between two adjacent openings on the upper part of the device. This reduces the number of pivots and structural space required for the door covers. However, this design has a drawback: if one cover breaks, both covers must be replaced simultaneously, resulting in wasted resources. Furthermore, since each cover must be designed specifically for the openings of each device model, existing door cover structures cannot be modified individually for any single cover or opening. For similar models, the possibility of modifying a single-sided opening is far greater than modifying a double-sided opening, thus limiting design versatility and requiring improvement.

[0004] To address the aforementioned issues, it is necessary to develop a waterproof door assembly and electronic device to resolve them. Summary of the Invention

[0005] This invention provides a waterproof door assembly and an electronic device, each of which can be individually installed in the housing for easy individual repair or replacement.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A waterproof door assembly, mountable to a housing, includes a cover plate, an assembly shaft, and a fixing member. The assembly shaft is connected to the cover plate, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes an axial groove, a snap-fit ​​structure, and a fixing structure. The axial groove is connected to the cover plate and includes a first end and a second end. The snap-fit ​​structure is connected to the side of the axial groove opposite to the cover plate and extends to the first end of the axial groove, and the snap-fit ​​structure is capable of snapping into the housing. The fixing structure is connected to the side of the axial groove opposite to the cover plate and is located near the second end of the axial groove. The fixing member passes through the fixing structure and is fixed to the housing.

[0008] Preferably, the axial groove extends axially, the fastener extends radially perpendicular to the axial direction, the housing includes a first stop, a snap-fit ​​structure abuts against the first stop, and the first stop restricts the assembly shaft from moving axially and radially through the snap-fit ​​structure.

[0009] Preferably, the aforementioned first stop portion has an end face and an opening, the opening is adjacent to the end face, and the snap-fit ​​structure is engaged with the opening.

[0010] Preferably, the aforementioned first stop portion has a circumferential surface, which is connected to the end face portion and extends to the opening.

[0011] Preferably, the aforementioned circumferential surface has an arc-shaped segment that extends to the opening.

[0012] Preferably, the aforementioned snap-fit ​​structure has a bevel that slopes toward the axial groove in a direction close to the cover plate.

[0013] Preferably, the aforementioned axial groove extends axially, the housing includes a second stop portion, the assembly shaft includes a recess, the second stop portion has a mating surface, the recess abuts against the mating surface, and the second stop portion restricts the axial displacement of the assembly shaft through the recess.

[0014] Preferably, the aforementioned recess is located on the side of the assembly shaft opposite to the cover plate and away from the first end.

[0015] Preferably, the aforementioned fastener extends along a first radial direction perpendicular to the axial direction, and the direction perpendicular to the axial direction and the first radial direction is defined as a second radial direction. The second stop includes a first part and a second part that are connected to each other. The first part is connected to the housing and extends along the first radial direction, and the second part extends along the second radial direction, with the abutment surface located at the second part.

[0016] Preferably, the aforementioned housing includes a first stop portion and a second stop portion, the assembly shaft includes a recess, the snap-fit ​​structure abuts against the first stop portion, and the recess abuts against the second stop portion.

[0017] This application also provides an electronic device including a housing and a waterproof door assembly. The housing has a side cover. The waterproof door assembly is mounted on the housing and includes a cover plate, an assembly shaft, and a fixing member. The assembly shaft is connected to the cover plate, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes an axial groove, a snap-fit ​​structure, and a fixing structure. The axial groove is connected to the cover plate and includes a first end and a second end. The snap-fit ​​structure is connected to the side of the axial groove opposite to the cover plate and extends to the first end of the axial groove. The snap-fit ​​structure is capable of snapping onto the side cover. The fixing structure is connected to the side of the axial groove opposite to the cover plate and is located near the second end of the axial groove. The fixing member passes through the fixing structure and is fixed to the side cover.

[0018] Preferably, the axial groove extends axially, the fastener extends radially perpendicular to the axial direction, the side cover includes a first stop portion, the snap-fit ​​structure abuts against the first stop portion, and the first stop portion restricts the assembly shaft from moving upward in the axial direction and the first radial direction by means of the snap-fit ​​structure.

[0019] Preferably, the first stop portion has an end face and an opening, the opening is adjacent to the end face, and the snap-fit ​​structure is engaged with the opening.

[0020] Preferably, the axial groove extends axially, the housing includes a second stop, the assembly shaft includes a recess, the second stop has an abutment surface, and the recess abuts against the abutment surface.

[0021] Preferably, the recess is located on the side of the assembly shaft opposite to the cover plate and away from the first end.

[0022] Preferably, the fastener extends along a first radial direction perpendicular to the axial direction, and the direction perpendicular to the axial direction and the first radial direction is defined as a second radial direction. The second stop includes a first part and a second part connected to each other. The first part is connected to the housing and extends along the first radial direction, and the second part extends along the second radial direction. The abutment is located in the second part.

[0023] Preferably, the aforementioned housing also has a port, and the waterproof door assembly further includes a sealing plug that can seal the port.

[0024] Preferably, the aforementioned waterproof door assembly also includes a sliding latch, which is mounted on the cover plate.

[0025] This application also provides an electronic device, including a housing and a waterproof door assembly. The housing has a side cover. The waterproof door assembly is mounted on the housing and includes a cover plate and an assembly shaft. The assembly shaft is connected to the cover plate and fixed to the side cover, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes an axial groove, a snap-fit ​​structure, and a fixing structure. The axial groove is connected to the cover plate and includes a first end and a second end. The snap-fit ​​structure is connected to the side of the axial groove opposite to the cover plate and extends to the first end of the axial groove, and the snap-fit ​​structure is capable of snapping onto the side cover. The fixing structure is connected to the side of the axial groove opposite to the cover plate and is located near the second end of the axial groove.

[0026] Preferably, the aforementioned housing includes a first stop portion and a second stop portion, the assembly shaft includes a recess, the snap-fit ​​structure abuts against the first stop portion, and the recess abuts against the second stop portion.

[0027] The beneficial effects of this invention are:

[0028] This invention facilitates maintenance or replacement by allowing each waterproof door assembly to be individually installed in the housing. The corresponding two waterproof door assemblies can occupy approximately the space of a pivot axis, thereby reducing the structural space used. Attached Figure Description

[0029] Figure 1 Exploded view of the waterproof door assembly and electronic device provided by the present invention;

[0030] Figure 2 Explosion of the waterproof door assembly and housing provided by the present invention Figure 1 ;

[0031] Figure 3 Explosion of the waterproof door assembly and housing provided by the present invention Figure 2 ;

[0032] Figure 4 This is a schematic diagram of the structure of the waterproof door assembly provided by the present invention;

[0033] Figure 5 A partially enlarged view showing the fit between the waterproof door assembly and the housing provided by the present invention;

[0034] Figure 6 A cross-sectional view of the waterproof door assembly provided by the present invention installed on the housing;

[0035] Figure 7 for Figure 6 A magnified view of a portion of point 7 in the center circle;

[0036] Figure 8 A cross-sectional view of the sliding buckle installed on the housing according to the present invention;

[0037] Figure 9 for Figure 8 A magnified view of a partial plane selected at point 9 in the middle circle.

[0038] In the picture:

[0039] X, axial direction; Y1, first radial direction; Y2, second radial direction;

[0040] C. Housing; C1. Side cover; C11. Mounting port; C12. Mounting surface; C121. Fixing part; C13. First stop part; C131. End face; C132. Opening; C133. Peripheral surface; C1331. Arc-shaped segment; C14. Abutting surface; C15. Second stop part; C151. First part; C152. Second part; C1521. Abutting surface; C2. Inner frame; C21. Port;

[0041] 10. Cover plate; 11. Positioning hole; 20. Assembly shaft; 21. Axial groove; 211. First end; 212. Second end; 22. Snap-fit ​​structure; 221. Extension section; 222. Hook; 2221. Bevel; 23. Fixing structure; 24. Recess; 30. Fixing element; 40. Sealing plug; 41. Snap hook; 50. Sliding buckle; 51. Face; 511. Slot; 52. Side. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0043] like Figures 1-4 As shown, this embodiment provides a waterproof door assembly that can be installed on a housing C. The waterproof door assembly includes a cover plate 10, an assembly shaft 20, and a fixing member 30. The assembly shaft 20 is connected to the cover plate 10, allowing the cover plate 10 to rotate relative to the assembly shaft 20. The assembly shaft 20 includes an axial groove 21, a snap-fit ​​structure 22, and a fixing structure 23. The axial groove 21 is connected to the cover plate 10 and includes a first end 211 and a second end 212. The snap-fit ​​structure 22 is connected to the side of the axial groove 21 opposite to the cover plate 10 and extends to the first end 211 of the axial groove 21, and the snap-fit ​​structure 22 can snap onto the housing C. The fixing structure 23 is connected to the side of the axial groove 21 opposite to the cover plate 10 and is close to the second end 212 of the axial groove 21. The fixing member 30 passes through the fixing structure 23 and is fixed to the housing C.

[0044] Therefore, the waterproof door assembly can be installed separately on the housing C, making it easy to repair or replace.

[0045] It is worth noting that in some embodiments, the waterproof door assembly may also fix the fixing structure 23 to the housing C without the fastener 30. The fixing structure 23 may be directly fixed to the housing by snap-fit ​​or fitting. This embodiment does not limit the specific fixing structure.

[0046] like Figures 1-3 As shown, in some embodiments, the waterproof door assembly is part of an electronic device. In these embodiments, the electronic device includes a housing C and two waterproof door assemblies. The housing C includes a side cover C1 and an inner frame C2. The side cover C1 has two through mounting ports C11, and the inner frame C2 has two through ports C21. The side cover C1 is disposed on one side of the inner frame C2, and the position of each mounting port C11 corresponds to the position of each port C21. Each waterproof door assembly is detachably disposed on the side cover C1 and corresponds to the position of each mounting port C11. Here, connectors can be provided in the electronic device corresponding to each port C21 as needed, such as, but not limited to, USB type A, micro USB type C, VGA, DVI, HDMI, DisplayPort, Mini DisplayPort, RJ45, RJ11, RS232, or card readers (SD, mini SD, micro SD, RF).

[0047] like Figure 3 and Figure 4 As shown, in some embodiments, the cover plate 10 of the waterproof door assembly and the assembly shaft 20 are integral plate structures. The cover plate 10 is used to cover the mounting opening C11 and the port C21 to provide waterproof or dustproof effects.

[0048] like Figures 2-4As shown, the assembly shaft 20 is connected to one side of the cover plate 10 and is used to assemble the side cover C1. In some embodiments, the side cover C1 has a mounting surface C12 between the two mounting openings C11. When the cover plate 10 covers the mounting openings C11, the assembly shaft 20 located on one side of the cover plate 10 is adapted to the position of the mounting surface C12 and can be installed on the mounting surface C12.

[0049] like Figure 2 As shown, in an embodiment where the electronic device is equipped with two waterproof door assemblies, the assembly shafts 20 of the two waterproof door assemblies are connected to the same mounting surface C12. In these embodiments, when the two waterproof door assemblies are respectively fixed to the same mounting surface C12 by their assembly shafts 20, the assembly shafts 20 of the two waterproof door assemblies abut against each other, and the assembly shafts 20 of the two waterproof door assemblies are fitted together on the mounting surface C12.

[0050] Preferably, the assembly shaft 20 is connected to one side of the cover plate 10 by an axial groove 21, and the axial groove 21 extends along the axial direction X and includes a first end 211 and a second end 212. Because the axial groove 21 is provided between the assembly shaft 20 and the cover plate 10, the cover plate 10 can rotate relative to the assembly shaft 20 along the axial groove 21. Therefore, the user can pivot the cover plate 10 as needed to change the covered or open state of the cover plate 10 relative to the mounting opening C11.

[0051] like Figure 3 As shown, in some embodiments, the fastener 30 is a bolt, and a screw-hole type fixing part C121 is provided on the mounting surface C12 of the side cover C1 of the housing C. The fastener 30 extends along a first radial direction Y1 perpendicular to the axial direction X, and the waterproof door assembly is locked to the fixing part C121 on the mounting surface C12 of the side cover C1 through the fastener 30 and the fixing structure 23.

[0052] like Figure 3 and Figure 4 As shown, the snap-fit ​​structure 22 extends along the axial direction X and one end extends to the second end 212 of the axial groove 21. The length of the snap-fit ​​structure 22 along the axial direction X is less than the length of the axial groove 21 along the axial direction X. In some embodiments, the length of the snap-fit ​​structure 22 along the axial direction X is 15% to 20% of the length of the axial groove 21 along the axial direction X.

[0053] In these embodiments, the snap-fit ​​structure 22 includes an extension 221 and a hook 222 connected together. One end of the extension 221 is connected to the axial groove 21 and extends along the first radial direction Y1. The other end of the extension 221 is connected to the hook 222, which extends toward the second radial direction Y2 perpendicular to the first radial direction Y1. The snap-fit ​​structure 22 is fastened to the side cover C1 of the housing C by the hook 222.

[0054] like Figures 5-7As shown, in some embodiments, to enhance the stability of the cover 10 mounted on the side cover C1, the mounting surface C12 of the side cover C1 of the housing C includes a first stop C13 for the snap-fit ​​structure 22 to engage. In these embodiments, the first stop C13 is a cylindrical structure extending along the axial direction X. When the cover 10 is mounted on the side cover C1, the cover 10 is located on one side of the first stop C13, while the hook 222 of the snap-fit ​​structure 22 extends to the other side of the first stop C13 and engages with it.

[0055] In these embodiments, the side cover C1 further includes two abutment surfaces C14, which are perpendicularly connected to the two ends of the mounting surface C12 in the axial direction X. One end of the first stop portion C13 in the axial direction X extends to one of the abutment surfaces C14, and the other end of the first stop portion C13 in the axial direction X has an end face C131. The end face C131 of the first stop portion C13 is opposite to the abutment surface C14, thereby forming an opening C132 between the end face C131 of the first stop portion C13 and the abutment surface C14. In this way, when the hook portion 222 of the snap-fit ​​structure 22 is inserted into the opening C132 of the first stop portion C13, the end face C131 of the first stop portion C13 and the abutment surface C14 of the side cover C1 can restrict the displacement of the snap-fit ​​structure 22 in the axial direction X, thereby improving the stability of the cover plate 10 installed on the side cover C1. Furthermore, the first end 211 of the axial groove 21 is engaged and fixed with the first stop C13 by the snap-fit ​​structure 22, and the second end 212 of the axial groove 21 can be locked and fixed by the fastener 30 to further provide a fixing effect.

[0056] In embodiments where an electronic device incorporates two waterproof door assemblies, since the assembly shafts 20 of the two waterproof door assemblies are connected to the same mounting surface C12, the two waterproof door assemblies connected to the same mounting surface C12 are positioned differently to make more comprehensive and complete use of the mounting surface C12. In these embodiments, the two waterproof door assemblies are rotated 180 degrees. Specifically, one waterproof door assembly can be pivoted 180 degrees about a first radial direction Y1 to become the orientation of the other waterproof door assembly. In this way, when the assembly shafts 20 of the two waterproof door assemblies are connected to the same mounting surface C12, the fixing structures 23 of the assembly shafts 20 of the two waterproof door assemblies are arranged alternately on the mounting surface C12 in the axial direction X, and the fixing structure 23 of one waterproof door assembly is adjacent to the snap-fit ​​structure 22 of the other waterproof door assembly at the same axial position X.

[0057] Preferably, to facilitate the installation of the aforementioned waterproof door assembly, the first stop portions C13 on the mounting surface C12 are located at different positions along the axial direction X, and each first stop portion C13 is adjacent to a second stop portion C15 at the same axial position X. Figure 6 and Figure 7As shown. The first stop C13 cooperates with one of the two waterproof door assemblies, and the second stop C15 cooperates with the other of the two waterproof door assemblies.

[0058] like Figures 5-7 As shown, in some embodiments, to further improve the stability of the cover plate 10 assembled with the side cover C1, the first stop portion C13 has a circumferential surface C133, which connects the two ends of the first stop portion C13 in the axial direction X and extends to the opening C132 in the second radial direction Y2. Thus, when the hook portion 222 of the snap-fit ​​structure 22 enters the opening C132 of the first stop portion C13, the circumferential surface C133 of the first stop portion C13 can restrict the displacement of the snap-fit ​​structure 22 in the second radial direction Y2, further improving the stability of the cover plate 10 assembled with the side cover C1.

[0059] like Figures 5-7 As shown, in some embodiments, to ensure the smooth operation of the snap-fit ​​structure 22 engaging with the first stop portion C13, the peripheral surface C133 of the first stop portion C13 has an arc-shaped segment C1331 extending to the opening C132. Furthermore, the hook portion 222 of the snap-fit ​​structure 22 has a bevel 2221, which is inclined towards the axial groove 21 in a direction close to the cover plate 10. Thus, during the engagement of the snap-fit ​​structure 22 with the first stop portion C13, the snap-fit ​​structure 22 can be assembled with the bevel 2221 positioned relative to the arc-shaped segment C1331 of the peripheral surface C133 of the first stop portion C13. The bevel 2221 of the snap-fit ​​structure 22 and the arc-shaped segment C1331 of the first stop portion C13 can guide each other, smoothly engaging the hook portion 222 of the snap-fit ​​structure 22 into the opening C132, reducing assembly difficulty and improving assembly convenience.

[0060] like Figures 5-7 As shown, in some embodiments, to further improve the stability of the cover 10 after it is assembled to the side cover C1, the side cover C1 of the housing C further includes a second stop C15. The second stop C15 protrudes from the mounting surface C12 and has an abutment surface C1521 perpendicular to the mounting surface C12, while the assembly shaft 20 includes a recess 24. When the cover 10 is assembled to the side cover C1 via the assembly shaft 20, the recess 24 of the assembly shaft 20 abuts against the abutment surface C1521 of the second stop C15. Thus, the displacement of the assembly shaft 20 in the axial direction X is restricted by the second stop C15, improving the stability of the cover 10 assembled to the side cover C1 via the assembly shaft 20.

[0061] In these embodiments, the second stop C15 includes a first portion C151 and a second portion C152 connected to each other. The first portion C151 is connected to the mounting surface C12 of the side cover C1 of the housing C and extends along a first radial direction Y1. The second portion C152 extends along a second radial direction Y2, and the abutment surface C1521 is located on the second portion C152 and parallel to the abutment surface C14 of the side cover C1. Furthermore, as... Figure 3 and Figure 4 As shown, the recess 24 of the assembly shaft 20 is located on the side of the assembly shaft 20 opposite to the cover plate 10, and viewed in the axial direction X, the second end 212 of the axial groove 21 is closer to the recess 24 of the assembly shaft 20 than the first end 211. Therefore, the fit between the recess 24 of the assembly shaft 20 and the second stop C15 further improves the stability of the cover plate 10 assembled to the side cover C1 via the assembly shaft 20.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the waterproof door assembly also includes a sealing plug 40. The shape of the sealing plug 40 corresponds to the shape of the port C21 of the inner frame C2 of the housing C. When the electronic device has high waterproof requirements, high security requirements, or high confidentiality requirements, the sealing plug 40 is placed at the port C21 to seal the port C21, preventing water vapor from entering, preventing confidential data inside the electronic device from being stolen, and also preventing the risk of flash explosion caused by the cover 10 being accidentally opened.

[0063] In these embodiments, to improve the stability of the sealing plug 40, the sealing plug 40 includes a plurality of hooks 41, each hook 41 protruding from the surface of the sealing plug 40, and the cover plate 10 is provided with positioning holes 11 corresponding to the number and position of each hook 41. When the cover plate 10 is assembled to the side cover C1 by the assembly shaft 20, each hook 41 of the sealing plug 40 passes through and engages with each positioning hole 11 of the cover plate 10, so as to improve the stability of the sealing plug 40.

[0064] like Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, in some embodiments, to further improve the safety and airtightness of the waterproof door assembly, the waterproof door assembly further includes a sliding latch 50. The sliding latch 50 is a U-shaped cover structure including a face 51 and two opposing sides 52. The face 51 of the sliding latch 50 has a groove 511. The sliding latch 50 can be slidably fitted onto the hook 41 of the sealing plug 40 that passes through the positioning hole 11 of the cover plate 10 through the groove 511. The two sides 52 of the sliding latch 50 can be slidably fitted onto the inner frame C2 and can move to a release position and a locked position. Thus, when it is not necessary to open the cover plate 10, the sliding latch 50 can be moved to the locked position to lock the sliding latch 50 onto the inner frame C2 and cover the cover plate 10. When it is necessary to open the cover plate 10, the sliding latch 50 can be moved to the release position to release onto the inner frame C2, so that the sliding latch 50 can be opened with the cover plate 10. Thus, the user can release or lock the sliding latch 50 as needed, improving the safety of use.

[0065] In some embodiments, the aforementioned electronic device is, for example, a laptop computer, a tablet computer, a keyboard, a keyboard expansion dock, a camera, or a mobile phone.

[0066] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A waterproof door assembly, capable of being installed in a housing, comprising: A cover plate; An assembly shaft is connected to the cover plate, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes: An axial groove is connected to the cover plate, the axial groove including a first end and a second end; A snap-fit ​​structure is connected to one side of the axial groove opposite the cover plate and extends to the first end of the axial groove; the snap-fit ​​structure is capable of snapping onto the housing; and A fixing structure is connected to the side of the axial groove opposite to the cover plate, and near the second end of the axial groove; and A fastener passes through the fastening structure and is fixed to the housing.

2. The waterproof door assembly according to claim 1, wherein the axial groove extends axially, the fastener extends radially in a first direction perpendicular to the axial direction, the housing includes a first stop portion, the snap-fit ​​structure abuts against the first stop portion, and the first stop portion restricts the assembly shaft from moving upward in the axial direction and the first radial direction by means of the snap-fit ​​structure.

3. The waterproof door assembly according to claim 2, wherein the first stop portion has an end face and an opening, the opening is adjacent to the end face, and the snap-fit ​​structure is engaged with the opening.

4. The waterproof door assembly according to claim 3, wherein the first stop has a circumferential surface that is connected to the end face portion and extends to the opening.

5. The waterproof door assembly of claim 4, wherein the peripheral surface has an arcuate segment extending to the opening.

6. The waterproof door assembly according to claim 5, wherein the snap-fit ​​structure has a bevel that is inclined toward the axial groove in a direction close to the cover plate.

7. The waterproof door assembly according to claim 1, wherein the axial groove extends axially, the housing includes a second stop, the assembly shaft includes a recess, the second stop has a mating surface, the recess abuts against the mating surface, and the second stop restricts the axial displacement of the assembly shaft through the recess.

8. The waterproof door assembly of claim 7, wherein the recess is located on the side of the assembly shaft opposite to the cover plate and away from the first end.

9. The waterproof door assembly according to claim 8, wherein the fixing member extends along a first radial direction perpendicular to the axial direction, the direction perpendicular to the axial direction and the first radial direction is defined as a second radial direction, the second stop includes a first portion and a second portion connected to each other, the first portion being connected to the housing and extending along the first radial direction, the second portion extending along the second radial direction, and the abutment being located at the second portion.

10. The waterproof door assembly according to claim 1, wherein the housing includes a first stop and a second stop, the assembly shaft includes a recess, the snap-fit ​​structure abuts against the first stop, and the recess abuts against the second stop.

11. An electronic device comprising: A housing with a side cover; as well as A waterproof door assembly, installed in the housing, includes: A cover plate; An assembly shaft is connected to the cover plate, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes: An axial groove is connected to the cover plate, the axial groove including a first end and a second end; A snap-fit ​​structure is connected to one side of the axial groove opposite the cover plate and extends to the first end of the axial groove; the snap-fit ​​structure is capable of snapping onto the side cover; and A fixing structure is connected to the side of the axial groove opposite to the cover plate, and near the second end of the axial groove; and A fastener passes through the fastening structure and is fixed to the side cover.

12. The electronic device of claim 11, wherein the axial groove extends axially, the fastener extends in a first radial direction perpendicular to the axial direction, the side cover includes a first stop portion, the snap-fit ​​structure abuts against the first stop portion, and the first stop portion restricts the assembly shaft to move upward in the axial direction and the first radial direction by means of the snap-fit ​​structure.

13. The electronic device according to claim 12, wherein the first stop has an end face and an opening, the opening being adjacent to the end face, and the snap-fit ​​structure engaging with the opening.

14. The electronic device of claim 11, wherein the axial groove extends axially, the housing includes a second stop, the assembly shaft includes a recess, the second stop has an abutment surface, and the recess abuts against the abutment surface.

15. The electronic device of claim 14, wherein the recess is located on the side of the assembly shaft opposite to the cover plate and away from the first end.

16. The electronic device of claim 14, wherein the fastener extends along a first radial direction perpendicular to the axial direction, the direction perpendicular to the axial direction and the first radial direction is defined as a second radial direction, the second stop includes a first portion and a second portion connected to each other, the first portion being connected to the housing and extending along the first radial direction, the second portion extending along the second radial direction, and the abutment being located on the second portion.

17. The electronic device of claim 11, wherein the housing further comprises a port, and the waterproof door assembly further comprises a sealing plug capable of sealing the port.

18. The electronic device of claim 11, wherein the waterproof door assembly further comprises a sliding latch disposed on the cover plate.

19. An electronic device comprising: A housing with a side cover; as well as A waterproof door assembly, installed in the housing, includes: A cover plate; and An assembly shaft is connected to the cover plate and fixed to the side cover, allowing the cover plate to rotate relative to the assembly shaft. The assembly shaft includes: An axial groove is connected to the cover plate, the axial groove including a first end and a second end; A snap-fit ​​structure is connected to one side of the axial groove opposite the cover plate and extends to the first end of the axial groove; the snap-fit ​​structure is capable of snapping onto the side cover; and A fixed structure is connected to the side of the axial groove opposite to the cover plate and close to the second end of the axial groove.

20. The electronic device of claim 19, wherein the housing includes a first stop and a second stop, the assembly shaft includes a recess, the snap-fit ​​structure abuts against the first stop, and the recess abuts against the second stop.

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