A bag sealing structure and waterproof device

Abstract

The application provides a bag sealing structure and a waterproof device, and relates to the technical field of sealed packaging. The bag sealing structure comprises a shell and a turnover mechanism. The shell is composed of a first shell and a second shell which are covered together and locked by first and second locking parts. The turnover mechanism comprises a rotating end and a free end. The rotating end is rotatably connected to the first shell by a rotating shaft mechanism, and the free end is buckled to the second shell. The buckling and separation of the second shell and the first shell can be realized by operating the free end of the turnover mechanism. The locking parts are used for reliable sealing. The operation is labor-saving, convenient, firm and good in sealing performance, and the device is suitable for waterproof bags and other devices which require high reliability sealing.

Description

Technical Field

[0001] This application relates to the field of sealed packaging technology, and in particular to a sealing bag structure and waterproof device. Background Technology

[0002] In outdoor activities (such as swimming, diving, rafting, camping, and mountaineering) or daily use in damp or rainy weather, it is often necessary to place electronic devices such as mobile phones and cameras in waterproof bags to prevent liquid or moisture intrusion. Most existing waterproof bags use a split-type buckle structure for sealing, for example, with independent buckles on both sides of the bag opening. Users need to press or pull the buckles on both sides sequentially to complete the seal. This type of structure is cumbersome and inefficient, and improper operation can easily lead to incomplete sealing or loosening of the buckles, affecting the reliability of waterproofing. Furthermore, independent buckles provide a poor user experience in complex environments (such as low temperatures, wet hands, or one-handed operation).

[0003] Therefore, it is necessary to provide a bag sealing structure that is easier to operate, provides more stable sealing, and has an interlocking locking mechanism. Utility Model Content

[0004] This application provides a sealing bag structure and a waterproof device to solve the problems of unreliable sealing, complicated operation, and easy damage of existing sealing bags, and to achieve the technical effects of efficient sealing, convenient operation, and stable durability.

[0005] In a first aspect, this application provides a sealing bag structure, comprising:

[0006] The housing includes a first housing and a second housing that is closed and connected to the first housing, wherein one of the first housing and the second housing is provided with a first locking part, and the other housing is provided with a second locking part that cooperates with the first locking part;

[0007] A flipping mechanism includes a rotating end and a free end that can rotate around the rotating end. The rotating end is rotatably connected to the first housing, and the free end is fastened to the second housing when the flipping mechanism is fastened to the second housing.

[0008] In one possible design, the first locking part includes a locking through hole, and the second locking part includes a locking protrusion adapted to the size of the locking through hole. When the first housing and the second housing are fastened together, the locking protrusion is engaged at the locking through hole.

[0009] In one possible design, the locking through holes include a first locking through hole and a second locking through hole symmetrically formed on the first housing; the locking protrusions include a first locking protrusion and a second locking protrusion located on the side of the second housing facing the first housing;

[0010] When the first housing and the second housing are fastened together, the first locking protrusion is connected to the first locking through hole, and the second locking protrusion is connected to the second locking through hole;

[0011] Furthermore, the arc-shaped protrusion on the rotating end abuts against the tail of the first locking protrusion and the tail of the second locking protrusion.

[0012] In one possible design, the locking through hole is an arc-shaped mounting through hole, and the locking protrusion is an arc-shaped mounting protrusion adapted to the arc-shaped mounting through hole, with an integrally formed elastic barb at the end of the arc-shaped mounting protrusion.

[0013] In one possible design, an opening is provided on one side edge of the first housing, and a horizontally arranged rotating shaft mechanism is provided on the opposite side walls of the opening. The first housing is rotatably connected to the rotating end through the rotating shaft mechanism.

[0014] In one possible design, the rotating end includes a rotating part and a limiting part. The rotating part has a first limiting groove that matches the shape of the limiting part. The limiting part is fitted into the first limiting groove and connected to the rotating part.

[0015] The limiting part is installed at the opening and is rotatably connected to the rotating shaft mechanism.

[0016] In one possible design, a first shaft hole and a second shaft hole are respectively provided on the opposite side walls of the opening; the rotating shaft mechanism includes a first rotating shaft with one end rotatably connected to the first shaft hole, and a second rotating shaft with one end rotatably connected to the second shaft hole;

[0017] A first connecting shaft is installed on the other end of the first rotating shaft, and a second connecting shaft is installed on the other end of the second rotating shaft. The first connecting shaft and the second connecting shaft are rotatably connected to the two ends of the limiting part, respectively.

[0018] In one possible design, the rotating part includes a rotating column, which has a third shaft hole and a fourth shaft hole at both ends along the axial direction, and the first rotating shaft and the second rotating shaft are rotatably connected through the third shaft hole and the fourth shaft hole, respectively.

[0019] The first limiting groove is opened in the middle of the rotating column along the axial direction. The bottom of the first limiting groove is provided with a plurality of limiting posts, and each of the limiting posts is connected to a plurality of limiting holes opened on the side of the limiting part facing the first limiting groove.

[0020] In one possible design, the limiting part is provided with a second limiting groove along the axial direction, and both the first connecting shaft and the second connecting shaft are engaged at the groove wall of the second limiting groove.

[0021] In one possible design, the diameters of the first and second connecting shafts are larger than the inner diameters of the third and fourth shaft holes.

[0022] In one possible design, the first housing is recessed on the side facing the second housing, the first receiving groove is located between the first locking through hole and the second locking through hole, and the second housing is recessed on the side facing the first housing corresponding to the first receiving groove, and the first receiving groove and the second receiving groove cover each other to form a receiving space.

[0023] In one possible design, an anti-detachment mechanism is installed at the first receiving slot. The anti-detachment mechanism includes a first pressure plate and a second pressure plate. The first pressure plate and the second pressure plate are installed in close contact. A plurality of first insertion posts are provided on the side of the first pressure plate away from the second pressure plate, and a plurality of second insertion posts are provided on the side of the second pressure plate away from the first pressure plate.

[0024] Each of the first plug-in pins is connected to a plurality of first plug-in holes on the bottom of the first receiving groove, and each of the second plug-in pins is connected to a plurality of second plug-in holes on the bottom of the second receiving groove.

[0025] In one possible design, the first housing has a third plug-in post on the side facing the second housing, and the second housing has a third plug-in hole on the side facing the first housing that mates with the third plug-in post.

[0026] In one possible design, the first housing is symmetrically provided with hanging parts, and the hanging parts are provided with hanging holes.

[0027] Secondly, embodiments of this application provide a waterproof device, including a waterproof bag and a sealing structure, wherein the waterproof bag has a connecting portion, and the connecting portion is encapsulated between the first housing and the second housing of the sealing structure.

[0028] The beneficial effects of this application are as follows: By setting an integrated flipping mechanism, the user only needs to apply force to the free end of the mechanism to easily open and close the second shell and the first shell. Compared with the traditional multiple buckles or complex hinge structures, the operation steps are greatly simplified, making it very convenient and quick to use. By setting a first locking part and a second locking part that cooperate with each other on the first shell and the second shell respectively, when the flipping mechanism is engaged, the locking parts can be tightly pressed together to form an effective seal, ensuring the locking force and sealing reliability after the shell is closed, and effectively preventing the internal items from getting damp or water ingress. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a structural illustration of an embodiment of this application. Figure 1 ;

[0031] Figure 2 This is a structural illustration of an embodiment of this application. Figure 2 ;

[0032] Figure 3 This is a structural illustration of an embodiment of this application. Figure 3 ;

[0033] Figure 4 This is a schematic diagram of the structure of the first housing in an embodiment of this application. Figure 1 ;

[0034] Figure 5 This is a schematic diagram of the structure of the first housing in an embodiment of this application. Figure 2 ;

[0035] Figure 6 This is a schematic diagram of the structure of the first housing in an embodiment of this application. Figure 3 ;

[0036] Figure 7 This is a schematic diagram of the structure of the second shell in an embodiment of this application. Figure 1 ;

[0037] Figure 8 This is a schematic diagram of the structure of the second shell in an embodiment of this application. Figure 2 ;

[0038] Figure 9 This is a schematic diagram of the structure of the second shell in an embodiment of this application. Figure 3 ;

[0039] Figure 10 This is a schematic diagram of the flipping mechanism in an embodiment of this application. Figure 1 ;

[0040] Figure 11 This is a schematic diagram of the flipping mechanism in an embodiment of this application. Figure 2 ;

[0041] Figure 12 This is a schematic diagram of the flipping mechanism in an embodiment of this application. Figure 3 ;

[0042] Figure 13 This is a schematic diagram of the anti-hair loss mechanism in an embodiment of this application;

[0043] Figure 14 This is a schematic diagram of the rotating end of the flipping mechanism in an embodiment of this application;

[0044] Figure 15 This is a schematic diagram of the waterproof bag installation according to an embodiment of this application;

[0045] Figure 16 This is a schematic diagram of the waterproof bag structure according to an embodiment of this application.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. First housing; 110. Locking through hole; 111. First locking through hole; 112. Second locking through hole; 120. Opening; 121. First shaft hole; 122. Second shaft hole; 130. First receiving groove; 131. First insertion hole; 140. Third insertion post; 150. Hanging part; 151. Hanging hole;

[0048] 200. Second housing; 210. Locking protrusion; 211. First locking protrusion; 212. Second locking protrusion; 220. Second receiving groove; 221. Second insertion hole; 230. Third insertion hole;

[0049] 300. Tilting mechanism; 310. Rotating end; 311. Rotating part; 3111. First limiting groove; 3112. Third shaft hole; 3113. Fourth shaft hole; 3114. Limiting post; 312. Limiting part; 3121. Limiting hole; 3122. Second limiting groove; 320. Free end;

[0050] 400, Rotating shaft mechanism; 410, First rotating shaft; 420, Second rotating shaft; 430, First connecting shaft; 440, Second connecting shaft;

[0051] 500. Anti-detachment mechanism; 510. First pressure plate; 511. First insertion post; 520. Second pressure plate; 521. Second insertion post;

[0052] 600. Waterproof bag; 610. Connecting part.

[0053] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0054] 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.

[0055] With the increasing popularity of outdoor activities and water sports, people's demand for waterproof protection of their belongings is growing. Existing waterproof bags usually adopt simple zipper or chain sealing structures, which have shortcomings such as insufficient sealing performance and easy leakage after long-term use; unstable shell connection structure, which is easy to separate under external force; lack of effective fixation for internal items, which are easy to shake and collide during carrying, resulting in damage; and unreasonable opening and closing mechanism design, which is inconvenient to operate and easy to be damaged.

[0056] To overcome the shortcomings of existing technologies, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 as well as Figure 16 As shown, this application proposes a sealing bag structure, including a shell and a flipping mechanism 300. The shell includes a first shell 100 and a second shell 200 that is closed and connected to the first shell 100. The first shell 100 and the second shell 200 are made of plastic injection molding, forming a sealed space after being closed. One of the first shell 100 and the second shell 200 is provided with a first locking part, and the other is provided with a second locking part that cooperates with the first locking part. The flipping mechanism 300 includes a rotating end 310 and a free end 320 that can rotate around the rotating end 310. The rotating end 310 is connected to the first shell 100, and the free end 320 is engaged and connected to the second shell 200 when the flipping mechanism 300 is fastened to the second shell 200.

[0057] The first locking part includes a locking through hole 110, and the second locking part includes a locking protrusion 210 that matches the size of the locking through hole 110. When the first housing 100 and the second housing 200 are engaged, the locking protrusion 210 is engaged at the locking through hole 110. The cross-sectional shape of the locking protrusion 210, such as circular, arc-shaped, or square, is completely consistent with the locking through hole 110, ensuring no misalignment or interference when the two are engaged, and providing precise guidance for assembly. The maximum outer diameter of the protrusion is slightly less than or equal to the inner diameter of the through hole, leaving a small assembly gap (usually 0.05-0.2mm, which can be adjusted according to the elasticity of the material).

[0058] This gap avoids assembly jamming caused by dimensional deviations and allows for slight deformation of the protrusions after fitting, especially with elastic material protrusions filling the gap, reducing potential sealing risks. Based on the matching of cross-sectional shape and size, the protrusions can be smoothly inserted along the axial direction of the through hole (such as circular or square through holes) or along an arc trajectory (such as arc-shaped through holes), ensuring a stable and controllable assembly process without the need for additional adjustments to the housing position.

[0059] In one possible implementation, the first locking part, with a locking through hole 110 as its core component, is formed on the first housing 100 and serves as the fitting carrier for the protrusion, undertaking the dual functions of receiving and limiting. The second locking part, with a locking protrusion 210 as its core component, is integrally formed or fixed to the side of the second housing 200 facing the first housing 100, serving as an insertion end, and achieving housing connection by fitting with the through hole. The first locking through hole 111 and the second locking through hole 112 are symmetrically formed on the first housing 100, with the spacing, size, and cross-sectional shape of the two through holes being completely identical, and distributed with the housing centerline as the axis of symmetry. On the side of the second housing 200 facing the first housing 100, corresponding to the positions of the first and second locking through holes, the first locking protrusion 211 and the second locking protrusion 212 are provided, with the size, shape, and height of the protrusion precisely matching the corresponding through hole to ensure a one-to-one fitting.

[0060] When the first housing 100 and the second housing 200 are closed, the first locking protrusion 211 and the second locking protrusion 212 are simultaneously aligned with the first locking through hole 111 and the second locking through hole 112, and are inserted simultaneously along a preset trajectory (axis or arc) to avoid the housing tilting caused by one side fitting first, thus improving assembly efficiency.

[0061] After fitting, the protrusions on both sides and the through hole form a symmetrical constraint, which jointly bears the external force (such as pulling and vibration) from both sides of the shell, preventing the protrusions from deforming or the through hole from being damaged due to excessive force on one side, and extending the service life of the locking structure.

[0062] In one possible implementation, the locking through hole 110 is an arc-shaped mounting through hole, and the locking protrusion 210 is an arc-shaped mounting protrusion adapted to the arc-shaped mounting through hole. The end of the arc-shaped mounting protrusion is integrally formed with an elastic barb. The elastic barb is made of an elastic material, such as TPU or soft PP, and the barb is wedge-shaped or triangular. When not assembled, the barb and the main body of the protrusion form a preset angle, and it has the ability to deform and recover.

[0063] The radius error of the arc-shaped mounting protrusion must be controlled within ±0.03mm to ensure complete overlap with the arc trajectory of the through hole, avoiding jamming or localized wear due to curvature deviation. The maximum outer diameter of the barb should be slightly larger than the inner diameter of the arc-shaped mounting through hole, but because the barb is elastic, it can be deformed by the through hole during insertion and return to its original shape after full insertion, forming an interference lock. At the same time, the root thickness of the barb should be controlled between 0.2-0.5mm (adjusted according to material strength) to ensure that it is not easily broken during deformation, balancing elasticity and durability.

[0064] The one-way locking feature of the flexible barb effectively prevents the protrusion from coming out of the through-hole due to vibration or pulling, compared to a barbless protrusion design. For example, in bumpy outdoor environments, traditional protrusions may loosen slightly due to vibration, while the flexible barb can firmly lock into the limiting step of the through-hole, ensuring a stable locked state. The curved structure ensures a full fit between the protrusion and the through-hole, reducing local gaps that may occur with straight insertion. At the same time, the interference fit between the flexible barb and the through-hole fills the tiny gaps at the barb, preventing dust and moisture from seeping in, making it especially suitable for waterproof and dustproof applications.

[0065] The curved trajectory guides the closing action more smoothly. Even if the user applies uneven pressure when closing, the bump can still slide and adjust along the trajectory, reducing the difficulty of operation. The deformable nature of the elastic barb can accommodate a certain degree of assembly deviation (such as slight tilting of the bump), avoiding damage to components due to operational errors.

[0066] The flipping mechanism 300 has a first state and a second state. When the flipping mechanism 300 switches from the first state to the second state, the free end 320 disengages from the second housing 200. Alternatively, when the flipping mechanism 300 switches from the first state to the second state, the free end 320 drives the second housing 200 to rotate, thereby unlocking the second housing 200 from the first housing 100.

[0067] In one possible implementation, the flipping mechanism 300 achieves the goal of unlocking or disengaging the housing by changing its own state.

[0068] The flipping mechanism 300 switches states to disengage the free end 320 from the second housing 200. By flipping, the spatial position of the free end 320 is changed, thus releasing its engagement with the second housing 200.

[0069] Initial state (first state): The flipping mechanism 300 is in the retracted or locked position. At this time, the free end 320 and the second housing 200 are connected by a fastening structure (such as a buckle, a slot, a hook, etc.) to form a constraint relationship.

[0070] State switching (from the first state to the second state): The flipping mechanism 300 flips, causing the free end 320 to move synchronously, so that it disengages from the snap-fit ​​position of the second housing 200.

[0071] In the first mode, after the fastening relationship between the free end 320 and the second housing 200 is released, the second housing 200 remains in an unlocking state due to the cooperation of the first locking part and the second locking part.

[0072] An opening 120 is provided on one side edge of the first housing 100. A horizontally arranged rotating shaft mechanism 400 passes through the opposite side walls of the opening 120. The first housing 100 is rotatably connected to the rotating end 310 via the rotating shaft mechanism 400. The opening 120 provides installation space, and the rotating shaft mechanism 400 enables a flexible rotatable connection between the first housing 100 and the rotating end 310. This provides a stable rotational fulcrum for the locking and unlocking actions of the flipping mechanism 300, and is a key structural combination ensuring the smoothness and reliability of the flipping operation.

[0073] In one possible implementation, the opening 120 is a U-shaped notch or a rectangular groove structure, with its opening orientation adapted to the closing direction of the second housing 200, such as opening towards the side of the second housing 200, to ensure that the flipping mechanism 300 is not obstructed by the edge of the housing when it rotates. The width of the opening 120 needs to be slightly larger than the width of the rotating end 310 to avoid friction between the rotating end 310 and the side wall of the opening 120 when it rotates.

[0074] The depth of the opening 120 must match the thickness of the rotating end 310 to ensure that the rotating end 310 can be completely embedded in the opening 120 after installation, without protruding from the surface of the first housing 100, thus avoiding affecting the housing closing. The opposite side walls of the opening 120 are the shaft mounting walls, which need to be vertically and flattened, and the parallelism error of the side walls must be controlled within ±0.02mm to ensure that the shaft mechanism 400 can remain horizontal after installation, preventing the rotating end 310 from tilting and rotating.

[0075] In one possible implementation, a first shaft hole 121 and a second shaft hole 122 are respectively provided on the opposite side walls of the opening 120. Both the first shaft hole 121 and the second shaft hole 122 are cylindrical through holes, and the axes of the two shaft holes are completely coincident (coaxiality error ≤ 0.01mm), ensuring that the rotating shaft can rotate along the same axis after subsequent installation, and avoiding rotation jamming caused by axis offset.

[0076] The rotating shaft mechanism 400 is a horizontally arranged multi-axis collaborative assembly. The rotating shaft mechanism 400 includes a first rotating shaft 410 with one end rotatably connected to the first shaft hole 121, and a second rotating shaft 420 with one end rotatably connected to the second shaft hole 122. A first connecting shaft 430 is installed on the other end of the first rotating shaft 410, and a second connecting shaft 440 is installed on the other end of the second rotating shaft 420. The overall axis of the rotating shaft mechanism 400 is perpendicular to the two side walls of the opening 210, ensuring that the rotation direction is consistent with the fastening trajectory of the flipping mechanism 300.

[0077] The other ends of the first rotating shaft 410 and the second rotating shaft 420, and their corresponding connecting shafts, namely the first connecting shaft 430 and the second connecting shaft 440, can be integrally molded, welded, or threaded. Integral molding is preferred for the plastic material to prevent loosening. The diameter of the rotating shaft needs to be designed according to the load-bearing requirements of the sealing bag structure, typically 2-5mm. High-strength metal or reinforced plastic should be used to ensure sufficient bending strength.

[0078] The inner diameters of the first shaft hole 121 and the second shaft hole 122 must be adapted to the outer diameters of the corresponding first rotating shaft 410 and second rotating shaft 420, using a transition fit. This ensures the shaft can rotate freely while preventing it from wobbling due to excessive clearance, and also facilitates smooth insertion of the shaft during assembly. The inner walls of the first shaft hole 121 and the second shaft hole 122 must be precision polished to reduce frictional resistance during shaft rotation, decrease wear after long-term use, and extend the service life of the shaft and shaft hole.

[0079] The rotating end 310 includes a rotating part 311 and a limiting part 312. The rotating part 311 has a first limiting groove 3111 that matches the shape of the limiting part 312. The limiting part 312 is fitted into the first limiting groove 3111 and connected to the rotating part 311. The limiting part 312 is installed at the opening 120 and is rotatably connected to the rotating shaft mechanism 400. The rotating end 310 is the core load-bearing component for the stable rotation of the flipping mechanism 300. The rotating part 311 serves as the main frame of the flipping mechanism, connecting the free end 320 and transmitting rotational force. The limiting part 312 acts as an intermediate adapter, precisely connecting the flipping mechanism 300 to the opening 120 of the first housing 100 through its fitting connection with the rotating part 311 and its rotational cooperation with the rotating shaft mechanism 400. This ultimately enables the flipping mechanism 300 to rotate around the rotating shaft mechanism 400, making it a key structure for ensuring the stability and accuracy of the flipping operation.

[0080] In one possible implementation, the rotating part 311 is cylindrical, with one end fixedly connected to the free end 320 of the flipping mechanism 300, which can be integrally molded or connected by a snap-fit. The other end cooperates with the limiting part 312 through the first limiting groove 3111. The main body of the rotating part 311 should be made of high-strength engineering plastic or metal to ensure that it can withstand the torque and wear caused by long-term rotation and avoid deformation or breakage.

[0081] The shape of the first limiting groove 3111 must be consistent with the shape of the limiting part 312. If the limiting part 312 is a rectangular block, the groove is rectangular; if the limiting part 312 is an arc-shaped block, the groove is arc-shaped. The edge of the groove must be rounded to avoid scratching the limiting part or causing jamming during installation. This will eliminate the relative displacement gap between the two and ensure that there is no slippage when the rotational power is transmitted.

[0082] The depth of the first limiting groove 3111 must match the size of the limiting part 312 to ensure that the limiting part 312 is flush with the surface of the rotating part 311 after being installed, without protruding or recessing, so as to avoid interference with the side wall of the opening 120 or other components during rotation. The width of the first limiting groove 3111 must be slightly larger than the width of the limiting part 312 to facilitate the quick insertion of the limiting part 312.

[0083] In one possible implementation, the limiting part 312 is a columnar structure adapted to the first limiting groove 3111. The height of the center of the first shaft hole 121 and the second shaft hole 122 of the opening 120 from the bottom of the opening 120 must be consistent with the height of the shaft hole of the limiting part 312, so as to ensure that after the rotating shaft mechanism 400 is connected, the limiting part 312 can be in the center position of the opening 120 and will not interfere with the upper and lower edges of the opening 120 when rotating.

[0084] The rotating part 311 includes a rotating column. The rotating column has a third shaft hole 3112 and a fourth shaft hole 3113 at both ends along the axial direction. The first rotating shaft 410 and the second rotating shaft 420 are rotatably connected through the third shaft hole 3112 and the fourth shaft hole 3113, respectively. The first limiting groove 3111 is opened in the middle of the rotating column along the axial direction. The bottom of the first limiting groove 3111 is provided with a plurality of limiting posts 3114. Each limiting post 3114 is connected to a plurality of limiting holes 3121 opened on the side of the limiting part 312 facing the first limiting groove 3111.

[0085] As an optional implementation, in some embodiments, the first adjusting mechanism 300 further includes a limiting part 312 disposed on the first adjusting bracket 310. The limiting part 312 has a second limiting groove 3122 formed along the axial direction, and the first connecting shaft 430 and the second connecting shaft 440 are both engaged at the groove wall of the second limiting groove 3122.

[0086] In this embodiment, the first adjusting bracket 310 is provided with a limiting part 312, and both the first connecting shaft 430 and the second connecting shaft 440 are engaged in the groove wall of the second limiting groove 3122. Thus, the groove wall of the second limiting groove 3122 can provide stable radial support and precise axial positioning for the first connecting shaft 430 and the second connecting shaft 440, effectively limiting the axial movement and radial offset that may occur during operation. This ensures that the movement trajectory of the first mounting bracket 320 and the second mounting bracket 420 during adjustment is more controllable, improving the rigidity and stability of the entire adjusting mechanism, thereby guaranteeing the positional accuracy of the auxiliary drive component after positioning and the reliability of the transmission system.

[0087] In one possible implementation, the axes of the third shaft hole 3112 and the fourth shaft hole 3113 are completely coincident and aligned with the central axis of the rotating column, ensuring that the first rotating shaft 410 and the second rotating shaft 420 can rotate along the same axis after installation, avoiding rotational jamming or localized wear caused by axis misalignment.

[0088] The inner diameters of the third shaft hole 3112 and the fourth shaft hole 3113 must be matched with the outer diameters of the corresponding first rotating shaft 410 and second rotating shaft 420, using a clearance fit. This ensures that the rotating shaft can be inserted flexibly and rotate smoothly, and also compensates for machining errors through a small clearance, avoiding assembly difficulties caused by dimensional deviations. The depth of the shaft hole must match the length of the inserted end of the rotating shaft to ensure sufficient support length after insertion, preventing cantilever wobbling during rotation.

[0089] During assembly, first slowly insert one end of the first rotating shaft 410 into the third shaft hole 3112 at one end of the rotating column, ensuring that the shaft and the shaft hole are coaxial without jamming. Then, insert one end of the second rotating shaft 420 into the fourth shaft hole 3113 at the other end of the rotating column. At this point, the rotating column should be able to rotate flexibly around the axes of the two shafts without significant resistance. Finally, connect the other ends of the two rotating shafts to the first shaft hole 121 and the second shaft hole 122 of the opening 120, respectively, to complete the rotational connection between the rotating part 311 and the first housing 100.

[0090] When the user rotates the free end 320 of the flipping mechanism, the rotational force drives the rotating column to rotate around the axes of the first rotating shaft 410 and the second rotating shaft 420. The two rotating shafts rotate synchronously within the shaft holes of the opening 120, forming a dual-shaft support rotation mode. Compared with single-shaft support, the cooperation of the dual shafts and dual shaft holes can disperse rotational stress, avoid bending deformation of the rotating column due to excessive force on one side, and improve the stability of the rotation trajectory, ensuring precise and controllable flipping action.

[0091] In one possible implementation, the limiting part 312 has limiting holes 3121 on the side facing the first limiting groove 3111, corresponding one-to-one in number and position to the limiting posts 3114. The diameter of the limiting hole 3121 needs to be slightly larger than the diameter of the limiting post 3114 to facilitate the smooth insertion of the limiting post 3114. During installation, the limiting hole 3121 of the limiting part 312 is aligned with the limiting post 3114 at the bottom of the first limiting groove 3111, and the limiting part 312 is pressed to fully insert the limiting post 3114 into the limiting hole 3121. At this time, the limiting part 312 achieves circumferential positioning through the nesting of the limiting post 3114 and the limiting hole 3121, and cannot be twisted relative to the rotating post 3114.

[0092] The limiting post 3114 is a cylindrical protrusion integrally formed at the bottom of the first limiting groove 3111. Its material is the same as that of the rotating post to ensure that the structural strength and the coefficient of thermal expansion and contraction are matched.

[0093] The limiting posts 3114 need to be symmetrically distributed along the center line of the bottom of the first limiting groove 3111 (e.g., 2-4 evenly arranged) to ensure that the limiting part 312 is evenly stressed after being installed, and to avoid local stress concentration caused by uneven distribution of the limiting posts 3114. The distance between adjacent limiting posts 3114 needs to be greater than the diameter of the limiting hole 3121 to prevent the hole wall from cracking when the limiting part 3114 opens the limiting hole 3121.

[0094] In one possible implementation, the diameter of the first connecting shaft 430 and the second connecting shaft 440 is larger than the inner diameter of the third shaft hole 3112 and the fourth shaft hole 3113. The size difference forms a physical barrier to prevent the rotating column from moving or falling off along the shaft axis during rotation, thereby further enhancing the structural stability of the rotating system and ensuring the reliability of the flipping mechanism 300 for long-term use.

[0095] The first connecting shaft 430 and the first rotating shaft 410 are an integral structure or fixedly connected, and the second connecting shaft 440 and the second rotating shaft 420 are an integral structure, with an annular stepped surface forming at the joint between the connecting shaft and the rotating shaft. When the first rotating shaft 410 passes through the third shaft hole 3112 and the second rotating shaft 420 passes through the fourth shaft hole 3113, the annular stepped surface of the connecting shaft will fit tightly against the end face of the rotating column, forming an axial obstruction.

[0096] The first connecting shaft 430 and the second connecting shaft 440 provide axial constraints on the tilting mechanism 300: When the tilting mechanism 300 rotates, if the rotating column is subjected to external forces such as vibration or pulling and tends to move outward along the axis of rotation, the annular stepped surface of the connecting shaft will abut against the end face of the rotating column, preventing the rotating column from continuing to move outward and avoiding the rotating column from falling off the axis of rotation. If the rotating column tends to move inward, the limiting part 312 will form a reverse constraint on the rotating column. Combined with the step limiting of the connecting shaft, a bidirectional axial fixation is formed to ensure that the rotating column is always in the preset axial position and does not deviate.

[0097] The first connecting shaft 430 and the second connecting shaft 440 strengthen the support of the rotating shaft mechanism 400: The size difference design between the connecting shaft and the shaft hole allows the rotating shaft mechanism 400 to obtain radial support through the inner wall of the shaft hole during rotation, as well as axial support through the fit between the stepped surface of the connecting shaft and the end face of the rotating column. This reduces the bending deformation of the rotating shaft caused by axial force and extends the service life of the rotating shaft.

[0098] The first housing 100 is recessed on the side facing the second housing 200 with a first receiving groove 130 located between the first locking through hole 111 and the second locking through hole 112. The second housing 200 is recessed on the side facing the first housing 100 corresponding to the first receiving groove 130 with a second receiving groove 220. After the first receiving groove 130 and the second receiving groove 220 are closed, a receiving space is formed.

[0099] In one possible implementation, the shapes of the first receiving groove 130 and the second receiving groove 220 should be consistent, such as rectangular, circular, or elliptical, and their dimensions should be perfectly matched. The sum of the depths of the first receiving groove 130 and the second receiving groove 220 should be designed according to the thickness of the item to be stored, ensuring that the item is not squeezed or deformed when the cover is closed after being placed in the groove. The length and width of the receiving groove should be slightly larger than the size of the item to facilitate the placement and removal of the item, while avoiding excessive gaps that would cause the item to shake within the receiving space.

[0100] The first accommodating groove 130 is opened on the side of the first housing 100 facing the second housing 200 and is located between the first locking through hole 111 and the second locking through hole 112. It can use the locking force of the locking through holes on both sides to make the force even when the accommodating groove is closed, and avoid the gaps in the accommodating space caused by the force on one side. The accommodating space is located in the core area of ​​the housing, reducing the direct impact of external collisions on the internal items.

[0101] An anti-detachment mechanism 500 is installed at the first receiving groove 130. The anti-detachment mechanism 500 includes a first pressure plate 510 and a second pressure plate 520. The first pressure plate 510 and the second pressure plate 520 are installed in close contact. A plurality of first insertion posts 511 are provided on the side of the first pressure plate 510 away from the second pressure plate 520. A plurality of second insertion posts 521 are provided on the side of the second pressure plate 520 away from the first pressure plate 510. Each first insertion post 511 is connected to a plurality of first insertion holes 131 at the bottom of the first receiving groove 130. Each second insertion post 521 is connected to a plurality of second insertion holes 221 at the bottom of the second receiving groove 220.

[0102] In one possible implementation, both pressure plates are flat and their shape must match the cross-sectional shape of the receiving groove. For example, if the receiving groove is rectangular, the pressure plate is rectangular, and the length and width of the pressure plate must be slightly smaller than the corresponding dimensions of the receiving groove to ensure that the pressure plate can be smoothly placed into the receiving groove without interfering with the groove wall.

[0103] In one possible implementation, the first housing 100 has a third insertion post 140 on the side facing the second housing 200, and the second housing 200 has a third insertion hole 230 on the side facing the first housing 100, which mates with the third insertion post 140. The third insertion post 140 and the third insertion hole 230 need to be symmetrically distributed along the centerline of the housing, such as 2-4 sets, located at the four corners or both sides of the housing, and need to avoid the first and second locking parts and the receiving groove area to avoid structural interference. The symmetrical layout can make the force evenly distributed when the housing is closed, preventing the force concentration on one side of the insertion post from causing local deformation of the housing and affecting the sealing effect.

[0104] In one possible implementation, the first housing 100 is symmetrically provided with hanging parts 150, and the hanging parts 150 are provided with hanging holes 151. Through the cooperation of the hanging holes 151 with external hanging components (such as hooks, ropes, buckles), the sealed bag structure can be suspended for storage, eliminating the dependence on flat storage space; at the same time, the symmetrical layout design ensures the balance when hanging, avoiding the sealed bag from tilting or shaking, providing users with more flexible storage options, especially suitable for use in various scenarios such as outdoor, travel, and home.

[0105] See Figure 1 , Figure 12 and Figure 13 As shown, a waterproof device includes a waterproof bag 600 and a sealing structure of this application. The waterproof bag 600 has a connecting portion 610, which is encapsulated between the first housing 100 and the second housing 200 of the sealing structure.

[0106] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models 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.

[0107] 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 sealing bag structure, characterized in that, include: The housing includes a first housing (100) and a second housing (200) that is closed and connected to the first housing (100). One of the first housing (100) and the second housing (200) is provided with a first locking part, and the other is provided with a second locking part that cooperates with the first locking part. A flipping mechanism (300) includes a rotating end (310) and a free end (320) that can rotate around the rotating end (310). The rotating end (310) is rotatably connected to the first housing (100), and the free end (320) is fastened to the second housing (200) when the flipping mechanism (300) is fastened to the second housing (200).

2. The sealing bag structure according to claim 1, characterized in that, The first locking part includes a locking through hole (110), and the second locking part includes a locking protrusion (210) that is adapted to the size of the locking through hole (110). When the first housing (100) and the second housing (200) are fastened together, the locking protrusion (210) is engaged at the locking through hole (110).

3. The sealing bag structure according to claim 2, characterized in that, The locking through hole (110) includes a first locking through hole (111) and a second locking through hole (112) symmetrically opened on the first housing (100); the locking protrusion (210) includes a first locking protrusion (211) and a second locking protrusion (212) located on the side of the second housing (200) facing the first housing (100). When the first housing (100) and the second housing (200) are fastened together, the first locking protrusion (211) is connected to the first locking through hole (111), and the second locking protrusion (212) is connected to the second locking through hole (112); Furthermore, the arc-shaped protrusion on the rotating end (310) abuts against the tail of the first locking protrusion (211) and the tail of the second locking protrusion (212).

4. The sealing bag structure according to claim 3, characterized in that, The locking through hole (110) is an arc-shaped mounting through hole, and the locking protrusion (210) is an arc-shaped mounting protrusion adapted to the arc-shaped mounting through hole. The end of the arc-shaped mounting protrusion is integrally formed with an elastic barb.

5. A sealing bag structure according to claim 4, characterized in that, An opening (120) is provided on one side edge of the first housing (100), and a horizontally arranged rotating shaft mechanism (400) is provided on the opposite side walls of the opening (120). The first housing (100) is rotatably connected to the rotating end (310) through the rotating shaft mechanism (400).

6. A sealing bag structure according to claim 5, characterized in that, The rotating end (310) includes a rotating part (311) and a limiting part (312). The rotating part (311) has a first limiting groove (3111) that is adapted to the shape of the limiting part (312). The limiting part (312) is fitted into the first limiting groove (3111) and connected to the rotating part (311). The limiting part (312) is installed at the opening (120) and is rotatably connected to the rotating shaft mechanism (400).

7. A sealing bag structure according to claim 6, characterized in that, The opening (120) has a first shaft hole (121) and a second shaft hole (122) respectively on its opposite side walls; the rotating shaft mechanism (400) includes a first rotating shaft (410) with one end rotatably connected to the first shaft hole (121) and a second rotating shaft (420) with one end rotatably connected to the second shaft hole (122). A first connecting shaft (430) is installed on the other end of the first rotating shaft (410), and a second connecting shaft (440) is installed on the other end of the second rotating shaft (420). The first connecting shaft (430) and the second connecting shaft (440) are rotatably connected to both ends of the limiting part (312).

8. A sealing bag structure according to claim 7, characterized in that, The rotating part (311) includes a rotating column, and the rotating column has a third shaft hole (3112) and a fourth shaft hole (3113) at both ends along the axial direction. The first rotating shaft (410) and the second rotating shaft (420) are rotatably connected through the third shaft hole (3112) and the fourth shaft hole (3113), respectively. The first limiting groove (3111) is opened in the middle of the rotating column along the axial direction. The bottom of the first limiting groove (3111) is provided with a plurality of limiting posts (3114). Each of the limiting posts (3114) is connected one-to-one with a plurality of limiting holes (3121) opened on the side of the limiting part (312) facing the first limiting groove (3111).

9. A sealing bag structure according to any one of claims 7-8, characterized in that, The limiting part (312) is provided with a second limiting groove (3122) along the axial direction, and the first connecting shaft (430) and the second connecting shaft (440) are both locked in the groove wall of the second limiting groove (3122).

10. A sealing bag structure according to claim 8, characterized in that, The diameters of the first connecting shaft (430) and the second connecting shaft (440) are larger than the inner diameters of the third shaft hole (3112) and the fourth shaft hole (3113).

11. A sealing bag structure according to claim 10, characterized in that, The first housing (100) is recessed with a first receiving groove (130) on the side facing the second housing (200). The first receiving groove (130) is located between the first locking through hole (111) and the second locking through hole (112). The second housing (200) is recessed with a second receiving groove (220) on the side facing the first housing (100) corresponding to the first receiving groove (130). The first receiving groove (130) and the second receiving groove (220) are covered to form a receiving space.

12. A sealing bag structure according to claim 11, characterized in that, An anti-detachment mechanism (500) is installed at the first receiving groove (130). The anti-detachment mechanism (500) includes a first pressure plate (510) and a second pressure plate (520). The first pressure plate (510) and the second pressure plate (520) are installed in close contact. A plurality of first insertion posts (511) are provided on the side of the first pressure plate (510) away from the second pressure plate (520), and a plurality of second insertion posts (521) are provided on the side of the second pressure plate (520) away from the first pressure plate (510). Each of the first plug-in pins (511) is connected to a plurality of first plug-in holes (131) at the bottom of the first receiving groove (130) in a one-to-one correspondence, and each of the second plug-in pins (521) is connected to a plurality of second plug-in holes (221) at the bottom of the second receiving groove (220) in a one-to-one correspondence.

13. A sealing bag structure according to claim 12, characterized in that, The first housing (100) has a third plug-in post (140) on the side facing the second housing (200), and the second housing (200) has a third plug-in hole (230) on the side facing the first housing (100) that cooperates with the third plug-in post (140).

14. A sealing bag structure according to claim 13, characterized in that, The first housing (100) is symmetrically provided with hanging parts (150), and the hanging parts (150) are provided with hanging holes (151).

15. A waterproof device, characterized in that, The bag includes a waterproof bag (600) and a sealing structure according to any one of claims 1-14, wherein the waterproof bag (600) has a connecting portion (610) which is encapsulated between the first housing (100) and the second housing (200) of the sealing structure.

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