A flap mechanism and method for a shelter

Abstract

The application discloses a turning plate mechanism and a turning plate method for a square cabin. The turning plate mechanism comprises an end main frame, an end secondary frame, a screw rod, a nut, a first rod, a second rod, a third rod and a locking tongue device. The turning plate mechanism has a folding state and a turning plate state. In the folding state, the end main frame is close to a cabin plate to be turned to fold to be perpendicular to a bottom plate, and the end secondary frame is in a first position. In the turning plate state, the end main frame is turned to be parallel to the bottom plate, the end secondary frame is in a second position to support the ground, and the locking tongue device can be in a locking state. The turning of the cabin plate to be turned is realized by rotating the screw rod. The application can conveniently and labor-savingly turn the cabin plate of the square cabin, and can support the cabin plate and the ground after the cabin plate is turned. In the turning process, the cabin plate and the frame of the turning plate mechanism are always connected together, which not only solves the turning torque direction changing problem, but also ensures the safe and stable operation of the cabin plate.

Description

Technical Field

[0001] This invention relates to the field of modular shelters, and more particularly to a flap mechanism and flap method for modular shelters. Background Technology

[0002] Containerized shelters are typically hexahedral structures with multiple panels. Adjacent panels can be flipped relative to each other. Current technology includes some flipping mechanisms, but these are overly complex, only capable of simple flipping, and require separate support mechanisms after flipping. Furthermore, existing technologies suffer from a change in the direction of the flipping torque during panel flipping, and the panels cannot be flipped safely and smoothly. Therefore, there is an urgent need in this field to design a flipping mechanism that can both flip the panels and provide support between the flipped panels and the ground. Summary of the Invention

[0003] To address the aforementioned technical problems in the existing technology, this invention provides a flap-over mechanism and method for modular shelters, enabling convenient and labor-saving flap-over, and providing support between the flap and the ground after flap-over. During the flap-over process, the flap is always connected to the frame of the flap-over mechanism, solving the problem of torque reversal during flap-over and ensuring the safe and stable operation of the flap.

[0004] This invention provides a flap mechanism for a container cabin, comprising: a main end frame, the bottom end of which is hinged to one end of a base plate; a secondary end frame, connected to the top end of the main end frame and movable between a first position and a second position, wherein in the first position, the secondary end frame is perpendicular to the main end frame on a first side, and in the second position, the secondary end frame is perpendicular to the main end frame on a second side, the first side facing the flap to be flapped and the second side facing away from the flap to be flapped; a lead screw, which is mounted perpendicularly to the end edge of the base plate on the main end frame; and a nut, which is used for mounting... On the lead screw: a first rod, the first end of which is hinged to the nut; a second rod, the first end of which is hinged to the second end of the first rod; a third rod, the first end of which is hinged to the end main frame at a position closer to the bottom plate than the first rod, and the second end of which is hinged to the second end of the second rod; a second guide member is provided at the hinge point between the third rod and the second rod, the second guide member moves in a second track groove, the second track groove is fixed to the outer surface of the cabin to be overturned; a locking tongue device is provided on the first rod and / or the second rod, having a locked state and an unlocked state, in the locked state the first rod... The first rod and the second rod are locked together as a single rod, so that the portion between the first end of the first rod, the second rod, the third rod, and the first end of the third rod forms a triangle. In the unlocked state, the first rod can rotate relative to the second rod. The flapping mechanism for the container has a retracted state and a flapping state. In the retracted state, the main end frame is retracted against the flap to be flipped to be perpendicular to the bottom plate, and the secondary end frame is in a first position. In the flapping state, the main end frame flips to be parallel to the bottom plate, and the secondary end frame touches the ground for support in a second position. The locking tongue device can be in a locked state, and the flap to be flipped is flipped by rotating the screw.

[0005] This invention also discloses a flipping method for a flap mechanism in a container cabin. The steps of flipping the flap to be flipped from being perpendicular to the bottom plate to being coplanar with the bottom plate include: firstly, flipping the end main frame from being perpendicular to the bottom plate to being parallel to the bottom plate. At this time, the first rod and the second rod are aligned in a straight line, and the locking tongue device is in a locked state to lock the first rod and the second rod into a straight line, so that the portion between the first end of the first rod, the second rod, the third rod, and the first end of the third rod to the first end of the first rod forms a triangle; moving the end secondary frame to a second position so that it touches the ground as a supporting column; rotating the lead screw, the nut moves, and the length of the portion between the first end of the third rod and the first end of the first rod changes, causing the third rod to rotate, driving the second guide member to move along the second track groove, thereby realizing the flipping of the flap to be flipped until the flap to be flipped is coplanar with the bottom plate. At this time, the end main frame acts as a supporting crossbar to support the flap to be flipped.

[0006] Compared with the prior art, the beneficial effects of the embodiments of the present invention are at least as follows:

[0007] 1. The modular cabin panels can be easily and effortlessly flipped, and after flipping, they can serve as supports between the cabin panels and the ground.

[0008] 2. During the flipping process, the hatch plate and the frame of the flipping mechanism are always connected together, which not only solves the problem of the change in the flipping torque, but also ensures the safe and stable operation of the hatch plate. Attached Figure Description

[0009] In the accompanying drawings, the same reference numerals may describe similar parts in different views. The drawings illustrate various embodiments generally by way of example rather than limitation, and are used, together with the description and claims, to explain the disclosed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the device. For highlighting purposes, the drawings are not necessarily drawn to scale, and elements in some drawings may be filled with color blocks or patterns for better display.

[0010] Figure 1 This is a schematic diagram of the flap mechanism used in the modular hospital.

[0011] Figures 2 to 6 A schematic diagram is shown of the process of the flap mechanism used in the modular shelter flipping from the folded state to the flapped state.

[0012] Figure 7 A schematic diagram of the folding mechanism used in the modular shelter is shown.

[0013] Figure 8-1 This is an overall schematic diagram showing the side panel frame and the flap mechanism used for the modular shelter connected to the modular shelter.

[0014] Figure 8-2 This is a schematic diagram showing the side panel frame and the flap mechanism for the modular shelter connected to the base plate.

[0015] Figure 8-3 This is a partial schematic diagram showing the connection between the side panel frame and the flap mechanism for the cabin. It shows that the side secondary frame of the side panel frame and the end secondary frame of the flap mechanism for the cabin are not yet connected.

[0016] Figure 8-4 This is a partial schematic diagram showing the connection between the side panel frame and the flap mechanism for the cabin, indicating that the side secondary frame of the side panel frame and the end secondary frame of the flap mechanism for the cabin have been connected.

[0017] Figure 9 This is a schematic diagram of a common modular shelter. Detailed Implementation

[0018] The following detailed description of specific embodiments of the present invention, taken in conjunction with the accompanying drawings, is not intended to limit the scope of the invention. These and other features of the invention will become apparent from the description of preferred forms of the given non-limiting examples with reference to the accompanying drawings.

[0019] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," "right," "front," and "back" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. "Bottom" and "top" are relative to the base plate; the end connected to the base plate is called the bottom, and the opposite end is called the top. "Vertical," "horizontal," and "coplanar" indicate orientation, including approximately vertical, approximately horizontal, and approximately coplanar.

[0020] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device. The connection includes various methods, including hinges, mounting, etc.

[0021] Figure 9 A schematic diagram of a common type of mobile shelter is shown, such as Figure 9 As shown, the container includes a cabin panel, which includes: a bottom plate 1; a pair of side plates 2, symmetrically hinged to the left and right sides of the bottom plate 1; a pair of top plates 3, each top plate 3 being hinged to the side of a corresponding side plate 2; and a pair of end plates 4, symmetrically hinged to the front and rear ends of the bottom plate 1.

[0022] The flap mechanism 10 for modular shelters of this application can flip the shelter panel to be flipped, and after unfolding, it serves as a support between the shelter panel to be flipped and the ground. The following description uses end plate 4 as an example of the shelter panel to be flipped. However, it should be understood that the flap mechanism 10 for modular shelters of this application can be applied to any type of modular shelter structure and is not limited to it. Figure 9 The structure is shown. For example, a modular shelter may have more or fewer modules. Figure 9 The cabin shown, in a minimal case, the cabin consisting only of a bottom plate and end plates to be overturned is also included within the scope of this application.

[0023] Combination Figures 1 to 7 The flap mechanism 10 used in the modular hospital includes:

[0024] The main frame 100 is hinged at one end to the base plate 1;

[0025] The end secondary frame 140 is connected to the top of the end main frame 100 and is movable between a first position and a second position. In the first position, the end secondary frame 140 is perpendicular to the end main frame 100 on a first side of the end main frame. In the second position, the end secondary frame 140 is perpendicular to the end main frame 100 on a second side of the end main frame. The first side faces the end plate 4 and the second side faces away from the end plate 4.

[0026] The lead screw 102 is mounted perpendicularly to the end edge of the base plate 1 on the end main frame 100;

[0027] Nut 104 is mounted on lead screw 102;

[0028] The first rod 110 has its first end hinged to the nut 104;

[0029] The second rod 120 has its first end hinged to the second end of the first rod 110;

[0030] The third rod 130, with its first end hinged to the end main frame 100, is positioned closer to the base plate 1 than the first rod 110. The second end of the third rod 130 is hinged to the second end of the second rod 120. A second guide member 150 is provided at the hinge point between the third rod 130 and the second rod 120. The second guide member 150 moves within a second track groove 152, which is fixed to the outer surface of the end plate 4. In the illustration, for better force distribution, these rods and grooves are arranged in two symmetrical sets. Figure 3 To better illustrate the second guide member 150, a second track groove 152 has been omitted.

[0031] The locking tongue device 122 is disposed on the first rod 110 and / or the second rod 120, and has a locked state and an unlocked state. In the locked state, the first rod 110 and the second rod 120 are locked into a straight rod, so that the first end of the first rod 110, the second rod 120, the third rod 130, and the portion between the first end of the third rod 130 and the first end of the first rod 110 form a triangle. In the unlocked state, the first rod 110 can rotate relative to the second rod 120.

[0032] The flap mechanism 10 for the modular shelter has a folded state and a flap state, such as Figure 2 As shown, in the retracted state, the main end frame 100 is retracted against the end plate 4 to be perpendicular to the bottom plate 1, and the secondary end frame 140 is in the first position, as shown. Figures 4 to 6 As shown, in the flip-plate state, the end main frame 100 flips to be parallel to the bottom plate 1, the end secondary frame 140 touches the ground and is supported in the second position, the locking tongue device 122 can be in the locked state, and the flip-plate 4 is realized by rotating the lead screw 102.

[0033] In some embodiments, such as Figure 4 As shown in the preferred embodiment, the nut 104 is also connected to the first guide member 105, and the end main frame 100 is provided with a first track groove 101 parallel to the lead screw 102, in which the first guide member 105 moves. This facilitates the smooth movement of the nut, and in turn guides the movement of the first rod, the second rod, and the third rod, making the flipping process more stable.

[0034] In some embodiments, the lead screw 102 has an operating joint 103 disposed at the top end of the end main frame 100, and the lead screw 102 can be rotated by rotating the operating joint 103. Figure 4 The optimal configuration is shown below. This facilitates the operation of the lead screw. The corresponding guide can be a roller, which improves the stability of movement.

[0035] In some embodiments, such as Figure 1 and Figure 2 As shown, an end hook 170 is provided at the bottom of the end main frame 100. One end of the end hook 170 is hinged to the bottom of the end main frame 100, and the hook at the other end of the end hook 170 is engaged with one end of the base plate 1. This allows for convenient connection and disassembly.

[0036] The locking tongue device 122 can adopt any structure that can achieve the aforementioned functions. In some embodiments, such as Figure 7 As shown in the enlarged view, the locking tongue device 122 includes a socket 1220, a locking tongue 1221, and a compression spring 1222. The socket 1220 is located on the first lever 110, and the locking tongue 1221 and compression spring 1222 are located on the second lever 120. The compression spring 1222 can press the locking tongue 1221 into the socket 1220 to lock the locking tongue device 122, as shown by part B in the figure. In the unlocked state, the locking tongue 1221 disengages from the socket 1220, as shown by part A in the figure. This structure is very ingenious; when it is necessary to unlock, the locking tongue 1221 can be manually pulled out of the socket 1220. Figure 7 In this state, the locking tongue device 122 is in the unlocked state indicated by A. Figures 3 to 6 In the state shown, the locking tongue device 122 is in the locked state indicated by B.

[0037] The connection between the main end frame 100 and the secondary end frame 140 can adopt various structures. For example... Figure 3 and Figure 4In a preferred embodiment, a mounting groove 116 is provided at the top of the main end frame 100, and the secondary end frame 140 is inserted into the mounting groove 116 and can slide from a first position to a second position relative to the mounting groove 116. A frame lock 160 is provided on the main end frame 100 to lock the secondary end frame 140 relative to the main end frame 100; or, the secondary end frame 140 is hinged to the main end frame 100 so that it can be flipped from the first position to the second position.

[0038] The frame lock 160 can adopt any structure that can achieve the aforementioned functions. In some embodiments, for example, such as Figure 2 , Figure 3 , Figure 4 As shown, the frame lock 160 includes a screw 1600 and a nut 1601. The screw 1600 is rotatably mounted on the main end frame 100. The end faces of both ends of the secondary end frame 140 have notches 1602. The free end of the screw 1600 passes through the notch 1602 at one end of the secondary end frame 140. The nut 1601 is screwed onto the screw 1600 outside the notch 1602. Thus, locking of the secondary end frame 140 can be achieved with this simple structure. Figure 2 , Figure 3 In the first position, the secondary frame 140 has its free end passing through the notch 1602 of the first end (the locked end in the retracted state) of the secondary frame 140. The nut 1601 is screwed onto the screw 1600 outside the notch 1602, thus achieving locking. To move the secondary frame 140 to the second position, the frame lock 160 needs to be unlocked, specifically by unscrewing the nut 1601. At this point, the secondary frame 140 can slide along the mounting groove 116. The secondary frame 140 slides down until the first end (the original locked end) touches the ground. The screw 1600 is rotated so that its free end passes through the notch 1602 of the second end (the locked end in the flip-up state) of the secondary frame 140. The nut 1601 is then screwed onto the screw 1601 outside the notch 1602, thus achieving locking again. When it is necessary to move the secondary frame 140 back to the first position, unlock the frame lock 160, slide the secondary frame 140 upward, rotate the screw 1600 so that its free end passes through the notch 1602 at the first end of the secondary frame 140, and then fix it with the nut 1601 to achieve locking.

[0039] The following describes a flip-up method that allows the panel to be flipped and, after unfolding, serves as a support between the panel and the ground.

[0040] The hatch to be overturned is perpendicular to the bottom plate (e.g.) Figure 2 (As shown) Flipped to be coplanar with the base plate (as shown) Figure 6 The steps (shown) include:

[0041] First, the main frame 100 is folded and flipped from being perpendicular to the base plate 1 to being parallel to the base plate 1, as follows: Figure 3As shown, at this time, the first rod 110 and the second rod 120 are aligned in a straight line, and the locking tongue device 122 is in a locked state to lock the first rod 110 and the second rod 120 into a straight line, so that the first end of the first rod 110, the second rod 120, the third rod 130, and the portion between the first end of the third rod 130 and the first end of the first rod 110 form a triangle;

[0042] Move the end secondary frame 140 from the first position to the second position so that it touches the ground to serve as a supporting column. Figure 4 This status is shown;

[0043] Rotating the lead screw 102 causes the nut 104 to move, changing the length of the portion between the first end of the third rod 130 and the first end of the first rod 110. This causes the third rod 130 to rotate, driving the second guide member 150 to move along the second track groove 152, thus achieving the flipping of the end plate 4. Figure 5 This state is shown until the end plate 4 and the bottom plate 1 are coplanar. At this point, the end main frame 100 acts as a supporting crossbar to support the end plate 4. Figure 6 The state is shown.

[0044] Moving the secondary frame 140 to the second position includes: unlocking the frame lock 160 on the main frame 100 used to lock the secondary frame 140 relative to the main frame 100; sliding the secondary frame 140 within the mounting slot 116 until its original locked end touches the ground; and from... Figure 3 and Figure 4 This movement can be observed.

[0045] By reversing the above process, the hatch to be flipped can be flipped back to be perpendicular to the bottom plate 1. When the flap mechanism 10 for the container is retracted, the locking tongue device 122 can be placed in the unlocked state. The first end of the first rod 110, the second rod 120, the third rod 130, and the part between the first end of the third rod 130 and the first end of the first rod 110 form a quadrilateral. Without rotating the lead screw 102, the end main frame 100 can be retracted to be perpendicular to the bottom plate 1. Figure 7 The state is shown. Figure 7 In the middle, the end plate 4 has been folded back to be perpendicular to the bottom plate 1, and the end secondary frame 140 has moved from the second position back to the first position. The end main frame 100 can be manually flipped back to be perpendicular to the bottom plate 1 and folded back along the direction of the arrow.

[0046] Thus, the flap mechanism 10 used in the modular shelter enables the flap to be flipped, and after unfolding, it serves as a support between the flap and the ground. This structure allows for effortless flipping, and after the flap is flipped, it provides support to the ground. During the flipping process, the flap to be flipped remains connected to the flap mechanism, solving the problem of torque reversal and ensuring the safe and stable operation of the flap. It is understood that the above description is based on the end secondary frame 140, but a similar effect can be achieved without the end secondary frame 140.

[0047] In one embodiment, to address the stress issues of lightweight and frameless modular housing, such as... Figures 8-1 to 8-4 As shown, the structure is as follows: at least one pair of side panel frames 20 are symmetrically arranged on the left and right sides of the base plate 1, and a pair of flip-up mechanisms 10 for the cabin are symmetrically arranged at the front and rear ends of the base plate 1. The side panel frame 20 includes a side main frame 200 and a side secondary frame 240. The bottom end of the side main frame 200 is connected to one side of the base plate 1, and the side secondary frame 240 is connected to the top end of the side main frame 200. A connecting mechanism is provided on the side secondary frame 240 and / or the end secondary frame 140 to connect the side secondary frames 240 of each of the two side panel frames 20 at each end to the corresponding end secondary frame 140 of the flip-up mechanism 10 for the cabin. In the retracted state, the pair of side secondary frames 240 and the corresponding end secondary frame 140 are connected by the connecting mechanism. When it is necessary to flip the cabin panel to be flipped, the pair of side secondary frames 240 and the corresponding end secondary frame 140 are disengaged. Similarly, a side hook can be provided at the bottom of the side main frame 100. One end of the side hook is connected to the bottom of the side main frame 200, and the hook at the other end of the side hook is engaged with one side of the base plate 1, so as to achieve convenient connection and disassembly.

[0048] Here, the connecting mechanism can take any suitable structure. In one embodiment, such as... Figure 8-3 and Figure 8-4 As preferably shown, the connecting mechanism includes a connecting slot 260 disposed on the free end side of the side subframe 240, and the end subframe 140 can be embedded in the connecting slot 260 on the side subframe 240.

[0049] This structure allows the following to be achieved: the flap mechanism 10 at each end and the side panel frames 20 on the left and right sides of the container close together to the container panels, forming a T-shaped whole at the top of the container. This whole serves as the load-bearing foundation of the container, thus preventing any force from being exerted on the container panels except for the bottom plate. This solves the load-bearing problem of lightweight and frameless containers and can effectively protect the container body.

[0050] The components described in this application can be installed in any suitable location as needed, and can be detached or non-detached as required. Those skilled in the art, guided by this application, can reasonably set the size and position of each component, as long as its function is achieved. The steps of the methods described in this application are not required to be in any particular order unless such order is explicitly stated. Furthermore, although exemplary embodiments have been described herein, their scope includes any and all embodiments based on the invention that have equivalent elements, modifications, omissions, combinations (e.g., overlapping schemes of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, which will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0051] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments may be used by those skilled in the art while reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the invention. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated to be combined with each other in various combinations or arrangements. The scope of the invention should be determined by reference to the appended claims and the full scope of their equivalents. Those skilled in the art can make various modifications or equivalent substitutions to the invention within its spirit and scope, and such modifications or equivalent substitutions should also be considered to fall within the scope of the invention.

Claims

1. A flap mechanism (10) for a modular shelter, the modular shelter including a base plate (1), one end of the base plate (1) being hinged to a flap to be flipped relative to the base plate (1), characterized in that, The flip-up mechanism (10) includes: The main frame (100) is hinged at its bottom end to one end of the base plate (1); An end secondary frame (140) is connected to the top of the end main frame (100) and is movable between a first position and a second position. In the first position, the end secondary frame (140) is perpendicular to the end main frame (100) on a first side of the end main frame. In the second position, the end secondary frame (140) is perpendicular to the end main frame (100) on a second side of the end main frame. The first side faces the compartment to be flipped and the second side faces away from the compartment to be flipped. A lead screw (102) is mounted perpendicularly to the end edge of the base plate (1) on the end main frame (100); The first nut (104) is mounted on the lead screw (102); The first rod (110) has its first end hinged to the first nut (104). The second rod (120) has its first end hinged to the second end of the first rod (110); The third rod (130) has its first end hinged to the end main frame (100) at a position closer to the bottom plate (1) than the first rod (110). The second end of the third rod is hinged to the second end of the second rod (120). A second guide (150) is provided at the hinge point between the third rod (130) and the second rod (120). The second guide (150) moves in the second track groove (152), which is fixed to the outer surface of the cabin to be overturned. A locking tongue device (122) is provided on the first rod (110) and / or the second rod (120), and has a locked state and an unlocked state. In the locked state, the first rod (110) and the second rod (120) are locked into a straight rod, so that the first rod (110), the second rod (120), the third rod (130), and the portion between the first end of the third rod (130) and the first end of the first rod (110) form a triangle. In the unlocked state, the first rod (110) can rotate relative to the second rod (120). The first nut (104) is also connected to the first guide (105). The end main frame (100) is provided with a first track groove (101) parallel to the lead screw (102). The first guide (105) moves in the first track groove (101). An end hook (170) is provided at the bottom end of the main end frame (100). One end of the end hook (170) is hinged to the bottom end of the main end frame (100), and the hook part of the other end of the end hook (170) is engaged with one end of the base plate (1). The flap mechanism (10) for the cabin has a folded state and a flap state. In the folded state, the end main frame (100) is folded against the cabin to be flipped so as to be perpendicular to the bottom plate (1), and the end secondary frame (140) is in the first position. In the flap state, the end main frame (100) is flipped to be parallel to the bottom plate (1), and the end secondary frame (140) is supported on the ground in the second position. The locking tongue device (122) can be in the locked state. The flap to be flipped is flipped by rotating the lead screw (102).

2. The flap mechanism (10) for a modular shelter according to claim 1, characterized in that, The lead screw (102) has an operating joint (103) located at the top of the end main frame (100). And / or, the corresponding guide is a roller.

3. The flap mechanism (10) for a modular shelter according to claim 1, characterized in that, The locking tongue device (122) includes a socket (1220), a locking tongue (1221), and a compression spring (1222). The socket (1220) is located on the first rod (110), and the locking tongue (1221) and the compression spring (1222) are located on the second rod (120). The compression spring (1222) can press the locking tongue (1221) into the socket (1220) to lock the locking tongue device (122). In the unlocked state, the locking tongue (1221) disengages from the socket (1220).

4. The flap mechanism (10) for a modular shelter according to claim 1, characterized in that, The top end of the main end frame (100) is provided with a mounting groove (116). The secondary end frame (140) is inserted into the mounting groove (116) and can slide from a first position to a second position relative to the mounting groove (116). A frame lock (160) is provided on the main end frame (100) to lock the secondary end frame (140) relative to the main end frame (100). The frame lock (160) includes a screw (1600) and a second nut (1601). The screw (1600) is rotatably mounted on the main end frame (100). The end faces of both ends of the secondary end frame (140) have notches (1602). The free end of the screw (1600) passes through the notch (1602) at one end of the secondary end frame (140). The second nut (1601) is screwed onto the screw (1600) on the outside of the notch (1602).

5. The flap mechanism (10) for a modular shelter according to claim 1, characterized in that, At least one pair of side plate frames (20) are symmetrically arranged on the left and right sides of the base plate (1). A pair of flap mechanisms (10) for the container are symmetrically arranged at the front and rear ends of the base plate (1). The side panel frame (20) includes a main side frame (200) and a secondary side frame (240). The bottom end of the main side frame (200) is connected to one side of the base plate (1), and the secondary side frame (240) is connected to the top end of the main side frame (200). The side secondary frame (240) and / or the end secondary frame (140) are provided with a connecting mechanism that can connect the side secondary frames (240) of the two side plate frames (20) at each end and the corresponding end secondary frames (140) of the flip-plate mechanism (10). In the retracted state, the pair of side secondary frames (240) and the corresponding end secondary frames (140) are connected by the connecting mechanism. When it is necessary to flip the compartment to be flipped, the pair of side secondary frames (240) and the corresponding end secondary frames (140) are disconnected. The connecting mechanism includes a connecting slot (260) disposed on the free end side of the side subframe (240), and the end subframe (140) can be embedded in the connecting slot (260) on the side subframe (240).

6. A flapping method for a flapping mechanism (10) for a container according to any one of claims 1 to 5, characterized in that, The steps of flipping the hatch to be flipped from being perpendicular to the bottom plate to being coplanar with the bottom plate include: First, the main frame (100) is flipped from being perpendicular to the base plate (1) to being parallel to the base plate (1). At this time, the first rod (110) and the second rod (120) are aligned in a straight line. The locking tongue device (122) is in a locked state to lock the first rod (110) and the second rod (120) into a straight line. Thus, the first end of the first rod (110), the second rod (120), the third rod (130), and the portion between the first end of the third rod (130) and the first end of the first rod (110) form a triangle. Move the end frame (140) to the second position so that it touches the ground as a support column; Rotating the lead screw (102) causes the first nut (104) to move, changing the length of the portion between the first end of the third rod (130) and the first end of the first rod (110), causing the third rod (130) to rotate, which in turn drives the second guide (150) to move along the second track groove (152), thus realizing the flipping of the compartment to be flipped until the compartment to be flipped is coplanar with the bottom plate (1). At this time, the end main frame (100) acts as a supporting cross column to support the compartment to be flipped.

7. The flip-plate method according to claim 6, characterized in that, When retracting, the locking tongue device (122) is placed in the unlocked state, and the first end of the first rod (110), the second rod (120), the third rod (130), and the portion between the first end of the third rod (130) and the first end of the first rod (110) form a quadrilateral. Without rotating the lead screw (102), the end main frame (100) can be retracted to be perpendicular to the base plate (1).

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