Dual-purpose deformation box with tent function

Abstract

The invention discloses a dual-purpose transformation box with a tent function. The dual-purpose transformation box comprises a box body and a tent assembly. The box body comprises two box covers, the two box covers can be closed to form an inner cavity of the box body, one box cover can rotate relative to the other box cover to achieve single-side opening, and the two box covers can be completely separated. The tent assembly comprises a mattress part and a tent surface part, the mattress part comprises a mattress body and a plurality of mattress supporting legs, and the mattress supporting legs are connected to one side of the mattress body and used for supporting the mattress. The tent face part comprises a tent cloth face and a tent support, and the tent support is connected to the tent cloth face and used for supporting the tent. In the tent form of the dual-purpose deformation box, the two box covers are placed on the ground in an upward posture, at least part of the mattress supporting legs are assembled in the two box bodies respectively and used for supporting the mattress body on the two box covers, and the bottom of the tent support is detachably fixed to the fixing parts in the box covers. And the tent cloth cover is opened and covers the mattress body.

Description

Technical Field

[0001] This invention belongs to the field of luggage technology, and in particular relates to a dual-purpose convertible case with a tent function. Background Technology

[0002] Currently available suitcases and toolboxes have relatively simple functions, primarily designed for transporting items from one location to another. When traveling, if other functional needs arise, more single-function travel items need to be carried to meet those needs. This requires more luggage space and weight, increasing the burden of travel to some extent. Summary of the Invention

[0003] The purpose of this invention is to provide a convertible case with a tent function, thereby solving the problem of limited functionality in existing bags. This convertible case combines the functions of a bag and a portable tent.

[0004] The technical solution of this invention is as follows:

[0005] A dual-purpose convertible case with tent functionality includes:

[0006] The box body includes two lids, which have a closed state, a one-sided open state, and a separated state. In the closed state, the two lids close together to form the inner cavity of the box body. In the one-sided open state, one lid can rotate relative to the other lid to expose the interior of the box body. In the separated state, the two lids can be completely separated.

[0007] A tent assembly includes a mattress portion and a tent top portion. The mattress portion includes a mattress body and multiple mattress legs, which are connected to one side of the mattress body to support the mattress. The tent top portion includes a tent fabric and a tent frame, which are connected to the tent fabric to support the tent.

[0008] In the tent form of the dual-purpose convertible box, both box lids are placed on the ground with their heads facing upwards. At least some of the mattress legs are respectively assembled into the two boxes to support the mattress body on the two box lids. The bottom of the tent frame is detachably fixed to the fixing part inside the box lid to open the tent fabric and cover the mattress body. The tent fabric and the mattress body are connected by a connecting structure and cooperate to form the internal space of the tent.

[0009] In one embodiment, a dual-purpose convertible box with a tent function is provided, wherein the mattress body is a foldable structure so that the mattress portion can be stored inside the inner cavity of the box in the closed state; and the tent frame is a collapsible structure so that the tent surface portion can be stored inside the inner cavity of the box in the closed state.

[0010] In one embodiment, a dual-purpose transformable box with a tent function is provided. In the tent form, two box covers are arranged side by side on the ground, with their arrangement direction being a first direction. The mattress body is a foldable structure that can be folded at least once, and the crease when folded is perpendicular to the first direction.

[0011] The mattress support legs are planar structures, and multiple mattress support legs are arranged at intervals along the first direction. The area formed by connecting the mattress body to the same mattress support leg is perpendicular to the first direction.

[0012] In one embodiment, a dual-purpose convertible box with a tent function is provided, wherein the mattress support legs are frame-shaped brackets formed by connecting the ends of a support bar; in the tent form, the shape of the frame-shaped bracket located inside the box lid is adapted to the shape of the box lid.

[0013] In one embodiment, a dual-purpose convertible box with a tent function has a gap between the two box covers in the tent form, forming an extended space; the mattress body spans the extended space, and some of the mattress legs are arranged in the extended space to support the area of ​​the extended space on the mattress body.

[0014] In one embodiment, a dual-purpose transformable box with a tent function is provided, wherein in the tent form, two box covers are arranged side by side on the ground, and their arrangement direction is a first direction.

[0015] The tent section includes multiple tent supports, which are respectively connected to the tent fabric and cooperate with each other to open the tent fabric after being connected to the fixing part inside the corresponding box cover; the tent supports are planar structures, and the multiple tent supports are arranged along the first direction.

[0016] In one embodiment, a dual-purpose convertible box with a tent function is provided. The tent frame includes a middle section and two side sections. The middle section is connected to the top of the tent frame. One end of each of the two side sections is connected to both ends of the middle section. The two side sections are connected to two sides of the tent frame. The other end of each of the two side sections is connected to two fixing parts inside the same box cover.

[0017] In one embodiment, a dual-purpose convertible box with a tent function is provided, wherein the connecting structure is a zipper, and the zipper is arranged around the perimeter connecting the mattress body and the unfolded tent fabric.

[0018] In one embodiment, a dual-purpose convertible case with a tent function has a first side and a second side opposite to each other. In the single-side open state, the two case lids can rotate about an axis located on the first side or the two case lids can rotate about an axis located on the second side.

[0019] Each of the two box lids is provided with at least one pivot opening and closing assembly on the first side and the second side. The pivot opening and closing assembly includes a first part and a second part, and the first part and the second part are respectively connected to the two box lids.

[0020] When the first and second parts of all the pivot opening and closing assemblies on the first and second sides are separated, the two box covers are completely separated; when the first and second parts of all the pivot opening and closing assemblies on the first side are connected and the first and second parts of all the pivot opening and closing assemblies on the second side are separated, the two box covers can rotate about the axis located on the first side; when the first and second parts of all the pivot opening and closing assemblies on the second side are connected and the first and second parts of all the pivot opening and closing assemblies on the first side are separated, the two box covers can rotate about the axis located on the second side; when the first and second parts of all the pivot opening and closing assemblies on the first and second sides are connected, the two box covers close together to lock their relative positions.

[0021] In one embodiment, a dual-purpose convertible case with a tent function is provided. The first part includes a first mounting base and a locking shaft, and the second part includes a second mounting base and a buckle. The first mounting base and the second mounting base are respectively fixedly connected to the two case covers.

[0022] The locking shaft is fixedly connected to the first mounting base, and the latch is rotatably connected to the second mounting base. When the two lids are closed, the latch can be hooked onto the locking shaft by elastic force during the rotation relative to the mounting base. In the single-sided open state, the latch in the rotating shaft opening and closing assembly on the side where the two lids are rotatably connected is hooked onto the locking shaft and can rotate around the locking shaft.

[0023] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art:

[0024] This invention provides a dual-purpose convertible case with a tent function, combining the features of a bag and a portable tent, with the tent function being optional and detachable. If camping or resting is needed during a trip, the tent component can be installed, transforming and unfolding into a single bed with a tent. Without the tent component, it functions like a regular bag, providing more internal space for other items. Attached Figure Description

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention.

[0026] Figure 1 This is a structural schematic diagram of a dual-purpose deformable box with a tent function according to the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a dual-purpose deformable box with a tent function of the present invention when it is opened on one side (the box is not equipped with tent components);

[0028] Figure 3 This is a schematic diagram of the structure of a rotating shaft opening and closing assembly according to the present invention;

[0029] Figure 4 This is a structural diagram of a dual-purpose transformable box with tent function in tent mode according to the present invention (the tent fabric is not shown);

[0030] Figure 5 This is an exploded view of a dual-purpose transformable box with a tent function in tent mode according to the present invention (the tent fabric is not shown, and the mattress legs assembled inside the box cover are not shown).

[0031] Figure 6 This is a schematic diagram of the structure of a groove according to the present invention;

[0032] Figure 7 This is a schematic diagram of the tent components of the present invention housed inside the box (the tent fabric is not shown).

[0033] Figure 8 This is a schematic diagram of the tent assembly of the present invention being removed from the box (the tent fabric is not shown);

[0034] Figures 9 to 12 This is a schematic diagram illustrating the process of assembling a tent component and two box covers into a tent shape according to the present invention. Figure 9 (The tent fabric is not shown in the drawing).

[0035] Explanation of reference numerals in the attached figures:

[0036] 1: Lid; 2: Mattress body; 3: Mattress legs; 4: Tent fabric; 5: Tent frame; 51: Middle section; 52: Side section; 521: Slide groove; 6: Rotary hinge assembly; 61: First part; 611: First mounting base; 612: Locking shaft; 62: Second part; 621: Second mounting base; 622: Locking buckle; 7: Pull rod assembly; 8: Wheel assembly. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0038] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0039] See Figures 1 to 12 This embodiment provides a dual-purpose convertible case with a tent function, including a case body and a tent assembly. The case body includes two lids 1, which have a closed state, a one-sided open state, and a separated state. In the closed state, the two lids 1 are closed to form the inner cavity of the case body. In the one-sided open state, one lid 1 can rotate relative to the other lid 1 to expose the interior of the case body. In the separated state, the two lids 1 can be completely separated.

[0040] The tent assembly includes a mattress section and a tent top section. The mattress section includes a mattress body 2 and multiple mattress legs 3, which are connected to one side of the mattress body 2 to support the mattress. The tent top section includes a tent fabric 4 and tent supports 5, which are connected to the tent fabric 4 to set up the tent.

[0041] In the tent form of the dual-purpose convertible box, both box covers 1 are placed on the ground with their heads facing upwards. At least some of the mattress support legs 3 are respectively assembled into the two boxes to support the mattress body 2 on the two box covers 1. The bottom of the tent frame 5 is detachably fixed to the fixing part inside the box cover 1 to open the tent fabric 4 and cover the mattress body 2. The tent fabric 4 and the mattress body 2 are connected by a connecting structure and cooperate to form the internal space of the tent.

[0042] In this embodiment, the dual-purpose convertible case allows the tent component to be removed when using the bag function alone, providing more internal space for other items. If the tent function is to be used later, the tent component can be inserted into the case, leaving remaining space for other items. When the tent function is needed, the two lids 1 are separated and placed face up on the ground, then the tent component is assembled.

[0043] The following is a further description of the dual-purpose convertible box with tent function in this embodiment.

[0044] The container can be a suitcase, toolbox, etc., there are no restrictions; for example... Figure 1 As shown, in this embodiment, the box is a suitcase, and the box is equipped with a pull rod assembly 7 and a wheel assembly 8.

[0045] The case has a first side and a second side. When one side is open, the two lids 1 can rotate about the axis located on the first side or about the axis located on the second side. That is, when one side is open, the case has two opening directions, and the user can choose which direction to open from according to actual needs.

[0046] Each of the two lids 1 has at least one pivot opening and closing assembly 6 on both the first and second sides. Each pivot opening and closing assembly 6 includes a first part 61 and a second part 62, which are respectively connected to the two lids 1. When the first parts 61 and 62 of all pivot opening and closing assemblies 6 on both the first and second sides are separated, the two lids 1 are completely separated. When the first parts 61 and 62 of all pivot opening and closing assemblies 6 on the first side are connected, and the first parts 61 and 62 of all pivot opening and closing assemblies 6 on the second side are separated, the two lids 1 can be opened by rotation about the axis located on the first side. When the first parts 61 and 62 of all pivot opening and closing assemblies 6 on the second side are connected, and the first parts 61 and 62 of all pivot opening and closing assemblies 6 on the first side are separated, the two lids 1 can be opened by rotation about the axis located on the second side. When the first parts 61 and 62 of all pivot opening and closing assemblies 6 on both the first and second sides are connected, the two lids 1 close together to lock their relative positions.

[0047] Specifically, the first part 61 includes a first mounting base 611 and a locking shaft 612, and the second part 62 includes a second mounting base 621 and a latch 622. The first mounting base 611 and the second mounting base 621 are respectively fixedly connected to the two lids 1. The locking shaft 612 is fixedly connected to the first mounting base 611, and the latch 622 is rotatably connected to the second mounting base 621. When the two lids 1 are closed, the latch 622 can be engaged with the locking shaft 612 by elastic force during rotation relative to the mounting base. In the single-sided open state, the latch 622 in the rotating shaft opening and closing assembly 6 on the side where the two lids 1 are rotatably connected is engaged with the locking shaft 612 and can rotate around the locking shaft 612. The first mounting base 611 and the second mounting base 621 can be fixed to the lids 1 with screws, but in other embodiments, the first mounting base 611 and the second mounting base 621 can also be fixed to the lids 1 in other ways, and there is no limitation on this.

[0048] For more details, see Figure 3 Initially, the two lids 1 are closed, but the latch 622 and the locking shaft 612 are not connected. Then, the latch 622 is driven to rotate towards the locking shaft 612. If no additional force is applied, the latch 622 will be blocked by the locking shaft 612 and cannot continue to rotate, so the two cannot be connected. However, at this time, the latch 622 and the locking shaft 612 are like a smooth rod resting on another smooth rod. Applying a certain force can cause the latch 622 to slightly deform elastically and rotate through the locking shaft 612. When the applied force is removed, the latch 622 returns to its original shape, thus achieving a hook connection with the locking shaft 612. When all the latches 622 in the first and second side of the rotating shaft opening and closing assembly 6 are hooked onto the locking shaft 612, the two lids 1 are locked in the closed state. Preferably, a rubber ring is provided at the contact point of the two lids 1. The rubber ring is used to seal the contact point of the two lids 1 when the two lids 1 are locked in the closed state. The latch 622 and the locking shaft 612, in their hooked state, can be slightly elastically deformed by forcefully prying the latch 622 away from the first part 61, thus disengaging it from the locking shaft 612 and unlocking it. When all the pivot opening and closing components 6 on one of the first and second sides are unlocked, the box can be opened on one side. During the opening process, the latch 622 in the pivot opening and closing component 6 on the other side can hook onto the locking shaft 612 and rotate, allowing the two box covers 1 to rotate relative to each other. In this embodiment, the box is provided with four pivot opening and closing components 6, distributed in pairs on the first and second sides; and the locking shafts 612 in the two pivot opening and closing components 6 distributed on the same side are located on the same straight line, which is also one of the rotation axes when the two box covers 1 rotate.

[0049] It should be noted that in this embodiment, the two lids 1 in the box are opened laterally, that is, in the left and right direction. However, in other embodiments, the box can also be opened vertically, etc., and there is no limitation on this.

[0050] To allow the tent components to be stored within the box's interior while minimizing space requirements, the mattress body 2 can be foldable, allowing the entire mattress portion, including the mattress legs 3, to be stored within the closed box's interior. Similarly, the tent frame 5 can be retractable, allowing the tent cover portion, including the tent fabric 4, to be stored within the closed box's interior.

[0051] Specifically, the mattress body 2 can be folded multiple times, and the creases during folding are perpendicular to the first direction. In the tent-like configuration, the two box covers 1 are arranged side-by-side on the ground, and their arrangement direction is the first direction, which in this embodiment is the length direction of the mattress body 2. The mattress legs 3 are planar structures, with multiple mattress legs 3 arranged at intervals along the first direction, and the area formed by connecting the mattress body 2 to the same mattress leg 3 is perpendicular to the first direction. Thus, the mattress portion can be folded and retracted along the first direction, and completely folded (e.g., ...). Figure 7 and Figure 8 As shown, it occupies only a very small space.

[0052] Furthermore, in the tent configuration, there is a gap between the two box covers 1, forming an extended space; the mattress body 2 spans the extended space, and some mattress legs 3 are disposed within the extended space to support the corresponding area of ​​the extended space on the mattress body 2. The mattress legs 3 can be frame-shaped supports formed by connecting the ends of a support strip; the mattress legs 3 disposed within the extended space are square-shaped, while the shape of the frame-shaped supports located within the box covers 1 needs to be adaptively adjusted according to the internal space of the box covers 1 (for example, the part of the pull rod assembly 7 located within one of the box covers 1 means that the mattress legs 3 involved in that part cannot be square-shaped), so as to fit the shape of the box covers 1. Preferably, the mattress legs 3 can be sewn to the bottom of the mattress body 2 and can rotate.

[0053] The mattress support legs 3 not only support the mattress body 2, but also allow the mattress body 2 to be suspended from the ground, preventing the ground from getting damp.

[0054] The tent structure includes multiple tent supports 5, each connected to the tent fabric 4. These supports, after being fixed to the inner part of the corresponding cover 1, work together to open the tent fabric 4. The tent supports 5 are planar structures, and the multiple tent supports 5 are arranged along a first direction. The tent fabric 4 is generally made of a flexible, retractable material. Thus, the tent structure can be retracted along the first direction, occupying only a very small space when fully retracted; for example... Figure 8 The image shows the state of the multiple tent supports 5 after they have been fully collapsed.

[0055] Specifically, the tent frame 5 includes a middle section 51 and two side sections 52. The middle section 51 is connected to the top of the tent frame 5. One end of each of the two side sections 52 is connected to both ends of the middle section 51, and each of the two side sections 52 is connected to one of the two sides of the tent frame 5. The other ends of each of the two side sections 52 are connected to two fixing parts inside the same cover 1. Preferably, the tent frame 5 can be sewn to the inside of the tent fabric 4.

[0056] The fixing part can be a pin, such as Figure 6 As shown, each of the two side sections 52 of the tent frame 5 has a groove 521 at its other end. When the tent frame 5 is connected to the fixing part, the grooves 521 on the two side sections 52 of the tent frame 5 move toward the corresponding two pins, so that the two pins slide into the grooves 521 of the two side sections 52; and the pin heads are used to restrict the movement of the side sections 52 in the pin axis. The engagement of the pin heads of the two corresponding pins on the two side sections 52 of the tent frame 5 can fix the position of the tent frame 5 in the pin axis.

[0057] If there is room for extension, a tent support 5 corresponding to the extended space can be set up, and the bottom of the tent support 5 can be directly supported on the mattress body 2.

[0058] The tent fabric 4 and the mattress body 2 are connected by a connecting structure, which can be a zipper. The zipper is arranged around the perimeter of the connection between the mattress body 2 and the extended tent fabric 4. Two rows of interlocking teeth in the zipper are respectively provided on the tent fabric 4 and the mattress body 2. Specifically, the tent fabric 4 and the mattress body 2 can be completely separated for easy storage; this embodiment has two zippers symmetrically arranged about the center line of the mattress body 2 along its length direction, see [reference]. Figures 9 to 12 The process of assembling the tent part onto the mattress part can be as follows: gradually fix the tent frame 5 along the first direction. During the process of gradually fixing the tent frame 5, the two zippers are also gradually zipped up. (This process is only one possible assembly process for the tent part and the mattress part, but it is not a limitation on the assembly process of the two parts. For example, all the tent frames 5 can be assembled first and then the zippers can be zipped up.)

[0059] This embodiment provides a dual-purpose convertible case with a tent function, combining the features of a suitcase and a portable tent, with this function being optional and detachable. When camping or resting is needed during the trip, the tent component can be installed, transforming and unfolding into a single bed with a tent. Without the tent component, it functions like a regular suitcase, providing more internal space for other items. Compared to placing a separate tent inside a typical suitcase, this embodiment minimizes the space occupied by the tent component, thus reducing luggage volume. Furthermore, it allows for easier assembly and unfolding of the tent, avoiding complex installation. Simultaneously, the hinged opening and closing component 6 allows the suitcase to open and close from the left or right, or to detach from the front and back, facilitating use.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A dual-purpose convertible case with a tent function, characterized in that, include: The box body includes two lids, which have a closed state, a one-sided open state, and a separated state. In the closed state, the two lids close together to form the inner cavity of the box body. In the one-sided open state, one lid can rotate relative to the other lid to expose the interior of the box body. In the separated state, the two lids can be completely separated. A tent assembly includes a mattress portion and a tent top portion. The mattress portion includes a mattress body and multiple mattress legs, which are connected to one side of the mattress body to support the mattress. The tent top portion includes a tent fabric and a tent frame, which are connected to the tent fabric to support the tent. In the tent form of the dual-purpose convertible box, both box lids are placed on the ground with their heads facing upwards. At least some of the mattress legs are respectively assembled into the two boxes to support the mattress body on the two box lids. The bottom of the tent frame is detachably fixed to the fixing part inside the box lid to open the tent fabric and cover the mattress body. The tent fabric and the mattress body are connected by a connecting structure and cooperate to form the internal space of the tent.

2. The dual-purpose convertible box with tent function according to claim 1, characterized in that, The mattress body has a foldable structure so that the mattress portion can be stored inside the cavity of the box in the closed state; the tent frame has a collapsible structure so that the tent surface portion can be stored inside the cavity of the box in the closed state.

3. The dual-purpose convertible box with tent function according to claim 1, characterized in that, In the tent configuration, the two box covers are arranged side by side on the ground, with their arrangement direction being the first direction; the mattress body is a foldable structure that can be folded at least once, and the creases during folding are perpendicular to the first direction; The mattress support legs are planar structures, and multiple mattress support legs are arranged at intervals along the first direction. The area formed by connecting the mattress body to the same mattress support leg is perpendicular to the first direction.

4. The dual-purpose convertible box with tent function according to claim 3, characterized in that, The mattress support legs are frame-shaped brackets formed by connecting the two ends of a support bar; in the tent configuration, the shape of the frame-shaped brackets located inside the box lid is adapted to the shape of the box lid.

5. The dual-purpose convertible box with tent function according to claim 1, characterized in that, In the tent configuration, there is a gap between the two box covers, forming an extended space; the mattress body spans the extended space, and some of the mattress legs are arranged within the extended space to support the area of ​​the extended space on the mattress body.

6. The dual-purpose convertible box with tent function according to claim 1, characterized in that, In the tent configuration, the two box covers are arranged side by side on the ground, with their arrangement direction being the first direction; The tent section includes multiple tent supports, which are respectively connected to the tent fabric and cooperate with each other to open the tent fabric after being connected to the fixing part inside the corresponding box cover; the tent supports are planar structures, and the multiple tent supports are arranged along the first direction.

7. The dual-purpose convertible box with tent function according to claim 6, characterized in that, The tent frame includes a middle section and two side sections. The middle section is connected to the top of the tent frame. One end of each of the two side sections is connected to both ends of the middle section. The two side sections are connected to the two sides of the tent frame. The other end of each of the two side sections is connected to two fixing parts inside the same box cover.

8. The dual-purpose convertible box with tent function according to claim 1, characterized in that, The connection structure is a zipper, which is arranged around the perimeter of the mattress body and the extended tent fabric.

9. The dual-purpose convertible box with tent function according to claim 1, characterized in that, The box has a first side and a second side opposite to each other. In the single-side open state, the two box covers can rotate about an axis located on the first side or the two box covers can rotate about an axis located on the second side. Each of the two box lids is provided with at least one pivot opening and closing assembly on the first side and the second side. The pivot opening and closing assembly includes a first part and a second part, and the first part and the second part are respectively connected to the two box lids. When the first and second parts of all the pivot opening and closing assemblies on the first and second sides are separated, the two box covers are completely separated; when the first and second parts of all the pivot opening and closing assemblies on the first side are connected and the first and second parts of all the pivot opening and closing assemblies on the second side are separated, the two box covers can rotate about the axis located on the first side; when the first and second parts of all the pivot opening and closing assemblies on the second side are connected and the first and second parts of all the pivot opening and closing assemblies on the first side are separated, the two box covers can rotate about the axis located on the second side; when the first and second parts of all the pivot opening and closing assemblies on the first and second sides are connected, the two box covers close together to lock their relative positions.

10. The dual-purpose convertible box with tent function according to claim 9, characterized in that, The first part includes a first mounting base and a locking shaft, and the second part includes a second mounting base and a locking buckle. The first mounting base and the second mounting base are respectively fixedly connected to the two box covers. The locking shaft is fixedly connected to the first mounting base, and the latch is rotatably connected to the second mounting base. When the two lids are closed, the latch can be hooked onto the locking shaft by elastic force during the rotation relative to the mounting base. In the single-sided open state, the latch in the rotating shaft opening and closing assembly on the side where the two lids are rotatably connected is hooked onto the locking shaft and can rotate around the locking shaft.

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