A hatch opening and closing structure and a shelter

Abstract

The application discloses a hatch opening and closing structure and a shelter. The hatch opening and closing structure comprises a hinge frame, a reinforcing structure and a driving mechanism. The hinge frame comprises a plurality of rotating arm assemblies arranged side by side, and each rotating arm assembly comprises a rotating seat, a first rotating arm, a second rotating arm and a connecting seat. The first end of the first rotating arm is rotatably connected with the rotating seat, the first end of the second rotating arm is elastically connected with the second end of the first rotating arm, and the connecting seat is fixedly connected with the second end of the second rotating arm. The reinforcing structure is connected with part of the rotating seats. The driving mechanism is connected with the rotating arm assemblies and is used for driving the rotating arm assemblies to rotate. The hatch opening and closing structure can realize the control of one-side opening and closing of the hatch, and the elastic connection of the first rotating arm and the second rotating arm can effectively avoid the interference between the hatch and the shelter body during the opening and closing of the hatch. In addition, the reinforcing structure can effectively improve the overall strength of the hatch opening and closing structure and improve the stability of the opening and closing of the hatch.

Description

Technical Field

[0001] This invention relates to the field of modular shelter technology, and more specifically, to a hatch opening and closing structure and a modular shelter. Background Technology

[0002] Current conventional hatch covers mostly use ordinary hinges to connect the hatch cover to the hull. These hinges do not provide active control over the hatch cover, resulting in instability during opening and an inability to maintain the opening angle. Furthermore, hinges can loosen, make noise, and rust over time. For larger hatch covers, the hinges cannot bear the weight, increasing the failure rate. Additionally, the exposed metal at the hinge joint affects the stealth performance of the hull. To reduce the stress on one side of the hinge, a split-hinged design is often used to distribute the hatch cover's weight. However, this split-hinged design introduces sealing problems, as water can easily leak at the split joint, failing to achieve a satisfactory seal for hulls requiring tight sealing.

[0003] Patent CN218759355U discloses a hinge for a box-type equipment, including a hinge support and a tilting arm. One end of the tilting arm is hinged to the hinge support, and the other end is fixedly connected to a fixing plate. The hinge support, tilting arm, and fixing plate form a hinge group, and multiple hinge groups are connected in parallel. This solution uses the hinge support as the rotation fulcrum, and the fixing plate pushes the hatch to rotate. Although it replaces the hinge and realizes the function of opening the large-area hatch from one side, this structure has limitations. Directly rotating the hatch when it is flush with the upper edge of the cabin may cause interference between the hatch and the upper edge of the cabin. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention innovatively provides a hatch opening and closing structure and a container, which can solve the technical problems of large space occupation and insufficient strength of the hatch opening and closing structure in the prior art.

[0005] To achieve the above-mentioned technical objectives, the first aspect of the present invention discloses a hatch opening and closing structure, comprising: A hinge frame includes multiple rotating arm assemblies arranged side by side. Each rotating arm assembly includes a swivel base, a first rotating arm, a second rotating arm, and a connecting base. A first end of the first rotating arm is rotatably connected to the swivel base. A first end of the second rotating arm is elastically connected to a second end of the first rotating arm. The connecting base is fixedly connected to the second end of the second rotating arm. The structure is reinforced and connected to part of the rotary seat; A drive mechanism, connected to the rotating arm assembly, is used to drive the rotating arm assembly to rotate.

[0006] Furthermore, the second end of the first rotating arm and the first end of the second rotating arm are connected by a connecting spring. A sliding sleeve is provided at the connection between the first rotating arm and the second rotating arm. The second end of the first rotating arm extends into the sliding sleeve and is fixedly connected to the sliding sleeve. The first end of the second rotating arm can slide into the sliding sleeve.

[0007] Furthermore, the sliding sleeve is provided with a first locking hole, and the second rotating arm is provided with a second locking hole near the first end sidewall. Locking pins are detachably inserted into the first locking hole and the second locking hole.

[0008] Furthermore, multiple connecting blocks are provided on both sides of the second rotating arm, and a connecting rod is provided between two adjacent second rotating arms, with the two ends of the connecting rod respectively connected to the connecting blocks of the two second rotating arms.

[0009] Furthermore, two connecting blocks are provided on opposite sides of the outer side wall of the sliding sleeve, and a connecting rod is provided between two adjacent second rotating arms, with the two ends of the connecting rod respectively connected to the connecting blocks of the two sliding sleeves.

[0010] Furthermore, the reinforcing structure includes a pre-installed section and a fixed section that are separately arranged. The first end of the pre-installed section is connected to the rotary seat, and the second end of the pre-installed section is connected to the first end of the fixed section.

[0011] Furthermore, the hatch opening and closing structure also includes a base, and the second end of the fixed section and the drive mechanism are simultaneously connected to the base.

[0012] Furthermore, the drive mechanism includes a drive motor and a telescopic cylinder, the drive motor and the telescopic cylinder being conventionally connected via a transmission box, the transmission box being provided with a hinge rod, the hinge rod being hinged to the base. The transmission box is equipped with a locking mechanism, which is used to lock the movement of the telescopic cylinder in the retraction direction.

[0013] Furthermore, the locking mechanism includes a ratchet, a locking pin, and a latch. The ratchet is fixedly connected to the drive shaft of the drive motor, and the end of the locking pin forms a pawl, which can be engaged with the ratchet. The pin is used to fix the position of the locking pin, so that the locking pin is kept in a non-engaged state with the ratchet.

[0014] Furthermore, the drive mechanism also includes a telescopic rod, which is disposed on the side of the telescopic rod. One end of the telescopic rod is connected to the hinge frame, and the other end of the telescopic rod is connected to the base.

[0015] Furthermore, the connecting seat is fixedly connected to the second end of the second rotating arm, and the connecting seat includes a connecting plate with multiple connecting holes. The connector also includes an extension plate and a gasket. The extension plate is detachably connected to the connector, and the gasket is connected to the extension plate. The gasket and the connector are located on the same plane.

[0016] A second aspect of the present invention discloses a modular container, comprising a container body and a cover, wherein the cover is movably mounted on the container body via the aforementioned cover opening and closing structure.

[0017] The beneficial effects of this invention are as follows: The hatch opening and closing structure provided by this invention enables control of unilateral hatch opening and closing, and the elastic connection between the first and second rotating arms effectively avoids interference between the hatch and the cabin during opening and closing. Furthermore, the invention enhances the overall strength of the hatch opening and closing structure through reinforced structural design, thereby improving the stability of hatch opening and closing. Attached Figure Description

[0018] Figure 1 This diagram illustrates the structure of a hatch opening and closing mechanism according to an embodiment of the present invention. Figure 2 This diagram illustrates the structure of a hatch opening and closing mechanism according to an embodiment of the present invention. Figure 3 This diagram illustrates a hinge frame in a disassembled state according to an embodiment of the present invention. Figure 4 This diagram illustrates the disassembled state of the rotary table and the pre-assembled section according to an embodiment of the present invention. Figure 5 This diagram shows a schematic representation of the structure of a rotary seat according to an embodiment of the present invention. Figure 6 This diagram illustrates the structure of a fixed segment according to an embodiment of the present invention. Figure 7 A partial schematic diagram of a drive mechanism according to an embodiment of the present invention is shown; Figure 8 This diagram shows a schematic of the bottom structure of the transmission box according to an embodiment of the present invention; Figure 9 This diagram shows a cross-sectional view of the assembly state of the container and hatch opening and closing structure according to an embodiment of the present invention; Figure 10 This diagram shows a cross-sectional view of the assembly state of the cabin and hatch opening and closing structure according to an embodiment of the present invention (with locking pins inserted into the sliding sleeve and the second rotating arm). Figure 11 This diagram shows a cross-sectional view of the assembly state of the container and hatch opening and closing structure according to an embodiment of the present invention; Figure 12This diagram shows a cross-sectional view of the assembly state of the container and hatch opening and closing structure according to an embodiment of the present invention; Figure 13 A partial schematic diagram of the shelter in the open state according to an embodiment of the present invention is shown.

[0019] In the picture, 1. Hinge frame; 11. Rotary seat; 111. Longitudinal plate; 112. Horizontal plate; 113. Hinge plate; 12. First rotating arm; 13. Second rotating arm; 131. First section; 1311. Second locking hole; 132. Second section; 133. Third section; 134. Fourth section; 14. Connecting plate; 141. Extension plate; 142. Washer; 15. Connecting rod; 16. Sliding sleeve; 161. First locking hole; 17. Connecting block; 18. Hinge seat; 19. Connecting spring; 2. Reinforced structure; 21. Pre-assembled section; 211. First support rod; 212. First connecting plate; 213. Second connecting plate; 22. Fixed section; 221. Second support rod; 222. Third connecting plate; 223. Fourth connecting plate; 3. Drive mechanism; 31. Drive motor; 32. Telescopic cylinder; 33. Transmission box; 331. Ratchet; 332. Housing; 333. Pawl; 334. Spring; 335. Pin; 336. Pull ring; 34. Telescopic rod; 4. Base; 5. Hull; 6. Hatch cover. Detailed Implementation

[0020] The hatch opening and closing structure and the container provided by the present invention will be explained and described in detail below with reference to the accompanying drawings.

[0021] The hatch opening and closing structure provided by this invention enables control of unilateral hatch opening and closing, and the elastic connection between the first and second rotating arms effectively avoids interference between the hatch and the cabin body during opening and closing. Furthermore, the invention effectively enhances the overall strength of the hatch opening and closing structure through reinforced structural design, thereby improving the stability of hatch opening and closing. The invention will be described in detail below with reference to specific embodiments: In one embodiment, such as Figure 1 , Figure 2 As shown, the present invention provides a hatch opening and closing structure for controlling the opening and closing of the hatch, and adopts a single-sided opening method for the hatch, which makes it easier to ensure the sealing of the hatch. The hatch opening and closing structure includes: a hinge frame 1, a reinforcing structure 2, and a drive mechanism 3. The hinge frame 1 is used to connect with the hatch, and the reinforcing structure 2 and the drive mechanism 3 are connected to the hinge frame 1, respectively for supporting and driving the hinge frame 1.

[0022] In this embodiment, the hinge frame 1 includes multiple rotating arm assemblies arranged side by side. Adjacent rotating arm assemblies are connected to each other, forming a single integral structure with the hinge frame 1. This provides more effective support for the hatch during the opening and closing of the hatch. Optionally, as... Figure 1 , Figure 3 As shown, the rotating arm assembly includes a swivel base 11, a first rotating arm 12, a second rotating arm 13, and a connecting seat. The first end of the first rotating arm 12 is rotatably connected to the swivel base 11. The first end of the second rotating arm 13 is elastically connected to the second end of the first rotating arm 12. The connecting seat is fixedly connected to the second end of the second rotating arm 13. The connecting seat includes a connecting plate 14 with multiple connecting holes. Optionally, a stiffening rib is provided between the connecting plate 14 and the fourth segment 134 to enhance the structural strength of the connecting plate 14. Further, the connecting seat also includes an extension plate 141 and a gasket 142. The extension plate 141 is detachably connected to the connecting plate 14, and the gasket 142 is connected to the extension plate 141. The gasket 142 and the connecting plate 14 are located on the same plane. When the gasket 142 and the extension plate 141 are needed, the gasket 142 and the connecting plate 14 contact the hatch cover. A portion of the extension plate 141 is connected to the connecting plate 14, and a portion is connected to the gasket 142, which increases the connection area with the hatch cover. The extension plate 141 and the gasket 142 can be used to adjust the connection area between the connecting seat and the hatch in different applicable scenarios, thereby improving the connection strength.

[0023] Optionally, the swivel base 11 includes a fixed plate, which comprises a horizontal plate 112 and a vertical plate 111 that are perpendicular to each other. Either one or both plates can be selected and simultaneously fixedly connected to the cabin depending on the installation position. A hinge plate 113 is provided on the lower side wall of the horizontal plate 112, and a pin can be provided on the hinge plate 113 for hinged connection to the first rotating arm 12. Further, as... Figure 4 As shown, part of the rotary seat 11 needs to be connected to the reinforcing structure 2 (connected to the pre-installed section 21 of the reinforcing structure 2). When it needs to be connected to the reinforcing structure 2, an installation gap is reserved between the hinge plate 113 and the longitudinal plate 111, such as... Figure 4 As shown, the hinge plate 113 on the rotary seat 11, which does not need to be connected to the reinforcing structure 2, extends to the longitudinal plate 111 and is fixedly connected to the longitudinal plate 111, as shown. Figure 5 As shown, this is to improve the overall structural strength of the rotary seat 11.

[0024] like Figure 3As shown, the first end of the first rotating arm 12 is provided with a through hole for hinged connection with the rotary seat 11, and the end face of the second end of the first rotating arm 12 is formed with a groove. The end face of the first end of the second rotating arm 13 is also formed with a groove. The two ends of the connecting spring 19 extend into the grooves of the first rotating arm 12 and the second rotating arm 13 respectively and are fixedly connected, so that the first rotating arm 12 and the second rotating arm 13 are connected by the connecting spring 19, thereby allowing the distance between the first rotating arm 12 and the second rotating arm 13 to change by a certain amount through the elastic deformation of the connecting spring 19.

[0025] A sliding sleeve 16 is fitted onto the second end of the first rotating arm 12. The sliding sleeve 16 is fixedly connected to the first rotating arm 12. The first end of the second rotating arm 13 extends into the sliding sleeve 16 and can slide within it. The length of the sliding sleeve 16 ensures that the first end of the second rotating arm 13 will not slide out of the sliding sleeve 16 during sliding. The sliding sleeve 16 ensures greater stability of the movement of the second rotating arm 13 relative to the first rotating arm 12 and also provides some protection for the connecting spring 19. Optionally, a first locking hole 161 is provided on the sliding sleeve 16, and a second locking hole 1311 is provided on the side wall near the first end of the second rotating arm. Locking pins are detachably inserted into the first locking hole 161 and the second locking hole 1311. When relative movement between the first rotating arm 12 and the second rotating arm 13 is not required, the sliding sleeve 16 and the second rotating arm 13 can be fixed by the locking pins, preventing the second rotating arm 13 from moving.

[0026] In this embodiment, the second rotating arm 13 is an integrally formed multi-segment bent structure, including a first segment 131 and a fourth segment 134 located at both ends, the first segment 131 and the fourth segment 134 being arranged in parallel, and a second segment 132 and a third segment 133 disposed between the first segment 131 and the fourth segment 134. The third segment 133 is perpendicularly connected to the fourth segment 134, and the second segment 132 forms an angle with the first segment 131 and is connected to both the first segment 131 and the third segment 133. A connecting seat is connected to the end of the fourth segment 134, and the first segment 131 is connected to the first rotating arm 12. The multi-segment bent structure design of the second rotating arm 13 allows the rotary seat 11 and the connecting seat to be at the same height, and the inclined arrangement of the second segment 132 also reduces the space occupied on the lower side.

[0027] Multiple connecting blocks 17 are provided on both sides of the second rotating arm 13. A connecting rod 15 is provided between two adjacent second rotating arms 13. The two ends of the connecting rod 15 are respectively connected to the connecting blocks 17 of the two second rotating arms 13. The multiple second rotating arms 13 are connected into one unit by the connecting rod 15, that is, multiple hinge frames 1 are connected into one unit, which makes the overall strength of the hinge frame 1 higher and the stability better during the opening and closing of the control hatch. In this embodiment, connecting blocks 17 are provided on the fourth section 134 and the third section 133 of the second rotating arm 13. Optionally, one connecting block 17 is provided at each end of the fourth section 134, and one connecting block 17 is provided at the connection between the third section 133 and the first section 131, so that multiple connecting rods 15 can be used for connection.

[0028] Optionally, two connecting blocks 17 are provided on opposite sides of the outer wall of the sliding sleeve 16, and a connecting rod 15 is provided between two adjacent second rotating arms 13. The two ends of the connecting rod 15 are respectively connected to the connecting blocks 17 of the two sliding sleeves 16. The two adjacent sliding sleeves 16 are also connected by the connecting rod 15, further improving the overall integrity of the hinge frame 1.

[0029] In this embodiment, as Figure 1 , Figure 2 As shown, the hinge frame 1 also includes a hinge seat 18 for connection to the drive mechanism 3. The hinge seat 18 includes a base plate and a hinge base disposed on the base plate for hinge connection with the drive mechanism 3. The hinge seat 18 is disposed on the hinge frame 1 near the connecting seat. Optionally, the hinge seat 18 can be connected to the third segment 133 of the second rotating arm 13, or the hinge seat 18 can be connected to the connecting rod 15 connected to the third segment 133.

[0030] In this embodiment, two reinforcing structures 2 are provided, spaced apart by a certain distance, forming a space between the two reinforcing structures 2 for mounting the drive mechanism 3. Optionally, the reinforcing structure 2 includes a pre-installed section 21 and a fixed section, which are separately provided. The first end of the pre-installed section 21 is connected to the rotary seat 11, and the second end of the pre-installed section 21 is connected to the first end of the fixed section.

[0031] Optionally, such as Figure 1 As shown, the reinforcing structure 2 includes a detachably connected pre-installed section 21 and a fixed section 22. The first end of the pre-installed section 21 is used to connect with the rotary seat 11, the second end of the pre-installed section 21 is connected to the first end of the fixed section 22, and the second end of the fixed section 22 is used to connect with the bottom of the cabin.

[0032] In this embodiment, as Figure 4As shown, the pre-assembled section 21 includes a first support rod 211, which is a straight rod with a first connecting plate 212 formed at its first end and a second connecting plate 213 formed at its second end. Both the first connecting plate 212 and the second connecting plate 213 are perpendicular to the first support rod 211. Both the first connecting plate 212 and the second connecting plate 213 are larger than the end face of the first support rod 211. Multiple through holes are formed in the portions of the first connecting plate 212 and the second connecting plate 213 extending to the outer side of the end face of the first support rod 211, for installing bolts to complete the connection with the top plate or the fixed section 22. The first connecting plate 212 is used to connect with the longitudinal plate 111 of the rotary seat 11. For example, the first connecting plate 212 and the longitudinal plate 111 can be fixedly connected to the cabin together with bolts, or the first connecting plate 212 can be connected to the longitudinal plate 111 first, and then the longitudinal plate 111 or the transverse plate 112 can be fixedly connected to the cabin.

[0033] Optionally, the pre-assembled section 21 is a one-piece molded structure to improve the overall structural strength. For example, the pre-assembled section 21 is machined from an aluminum plate. While ensuring the overall structural strength, weight reduction and optimization are achieved by machining the aluminum plate into an I-shaped structure. At the same time, the machining process improves the processing accuracy, ensuring the assembly accuracy of the first connecting plate 212 and the second connecting plate 213.

[0034] like Figure 6 The fixed section 22 includes a second support rod 221, which includes a curved section. Two portions on either side of the curved section form an included angle. A third connecting plate 222 is formed at the first end of the fixed section 22, and a fourth connecting plate 223 is formed at the second end. The third connecting plate 222 and the fourth connecting plate 223 are parallel to each other. The third connecting plate 222 is used to connect with the second connecting plate 213, and the structure of the third connecting plate 222 is the same as that of the second connecting plate 213. The fourth connecting plate 223 has multiple through holes for installing bolts to complete the connection with the base plate.

[0035] The curved section of the second support rod 221 allows a portion of the second support rod 221 and the connection point of the fourth connecting plate 223 to be away from the side wall of the container, thus avoiding interference with the door lock on the inside of the container door.

[0036] Optionally, the second support rod 221 is provided with a stiffening plate 225 and a stiffening strip 224. The stiffening strip 224 is a straight plate connected between the two ends of the second support rod 221. The stiffening plate 225 is located in the area enclosed by the stiffening strip 224 and the second support rod 221, and is connected to both the stiffening strip 224 and the second support rod 221. The stiffening plate 225 and the stiffening strip 224 improve the strength of the second support rod 221 and prevent it from being bent. In this embodiment, the second support rod 221, the stiffening plate 225, and the stiffening strip 224 are integrally formed to enhance the overall structural strength of the fixed section 22.

[0037] In this embodiment, as Figure 1 As shown, the drive mechanism 3 includes a drive motor 31, a telescopic cylinder 32, and a transmission box 33. The drive motor 31 and the telescopic cylinder 32 are arranged in parallel. The transmission box 33 contains a ball screw that transmits power to drive the telescopic cylinder 32 to complete the telescopic movement. The transmission box 33 is a conventional transmission structure in electric cylinders and will not be described in detail here.

[0038] like Figure 7 , Figure 8 The transmission box 33 is equipped with a locking mechanism at its bottom to lock the telescopic cylinder 32 in the retraction direction, preventing it from retracting. This mechanism is primarily used for manual opening operations. Optionally, the locking mechanism includes a ratchet 331, a locking pin, and a latch 335. The ratchet 331 is coaxially and fixedly connected to the drive shaft of the drive motor 331, and rotates synchronously with the drive shaft. A housing 332 is located at the bottom of the transmission box 33. The locking pin is slidably inserted into the housing 332. A pawl 333 is located at the first end of the locking pin. The pawl 333 can retract into the housing 332 or extend from the housing 332 and engage with the ratchet 331, allowing the ratchet 331 to rotate only in the first direction, thus restricting the drive shaft's rotation to the direction that causes the telescopic cylinder 32 to extend.

[0039] A spring 334 is installed inside the housing 332. The spring 334 is sleeved on the locking pin, with one end abutting against the inner wall of the housing 332 and the other end abutting against the pawl 333. It can provide elastic thrust to extend the pawl 333 out of the housing 332 and engage with the ratchet 331. The second end of the locking pin extends out of the housing 332 and is provided with a pull ring 336. The pull ring 336 can be manually pulled to retract the pawl 333 back into the housing 332.

[0040] The pin 335 can be inserted from the side of the housing 332. A through hole is provided on the locking pin. When the pawl 333 retracts into the housing 332, the pin 335 can be inserted into the through hole on the locking pin to fix the position of the locking pin, keeping the pawl 333 inside the housing. This ensures that the drive motor 31's control of the telescopic cylinder 32's extension and retraction is not affected. When manual control of the hatch opening and closing is required, removing the pin 335 allows the ratchet 331 to lock, preventing the telescopic cylinder 32 from contracting under pressure when opening the hatch. To close the hatch, pulling the pull ring 336 will close it. The locking mechanism prevents the hatch from closing automatically due to gravity during emergency or manual opening and closing.

[0041] In other embodiments, the drive mechanism 3 may also include any one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, which can control the opening and closing of the hatch through linear telescopic movements.

[0042] In this embodiment, the drive mechanism 3 further includes a telescopic rod 32, with both ends of the telescopic rod 32 rotatably connected to the drive seat 14 and the cabin structure, respectively. The telescopic rod 32 includes a cylinder and a lever that are slidably connected, and can extend as the cylinder head opens and retract as the cylinder head closes. It reaches its maximum extension when the cylinder head is in the open state, preventing the cylinder head from opening further. In particular, it can provide tension when the cylinder head is subjected to external force, preventing the cylinder head from opening too much and damaging the connecting frame and drive mechanism 3. Optionally, two telescopic rods 32 are provided, with the two telescopic rods 32 respectively located on both sides of the electric cylinder 31.

[0043] In this embodiment, the hatch opening and closing structure also includes a base 4, a drive mechanism 3 connected to the base 4, and a connecting rod 15 provided at the bottom of the transmission box. The connecting rod 15 is hinged to the base 4, so that when the drive mechanism 3 drives the hinge frame 1 to complete the opening and closing action, it can rotate at a certain angle. The telescopic rod is parallel to the telescopic cylinder and intersects on the base 4.

[0044] Optionally, the fourth connecting plate 223 of the fixed section 22 of the reinforcing structure 2 can be directly connected to the bottom plate of the hull, or it can be fixedly connected to the base 4 and then connected to the bottom plate of the hull through the base 4. Furthermore, if there is a gap between the fourth connecting plate 223 and the bottom plate of the hull or the base 4, the gap can be filled by adding a pad to ensure that the reinforcing structure 2 can provide effective support.

[0045] In another embodiment, such as Figures 9-13 As shown, the present invention provides a modular shelter, including a shelter body 5 and a cover 6. The cover 6 is movably mounted on the shelter body 5 via the aforementioned cover 6 opening and closing structure. The cover 6 opening and closing structure is connected to the shelter body 5. Optionally, a fixing rod is fixedly connected to the shelter body 5 and is supported by two support rods, achieving double fixation of the fixing rod.

[0046] Optionally, such as Figure 10As shown, when the contact surface between the hatch cover 6 and the cabin body 5 is an inclined plane, the opening and closing of the hatch cover 6 will not interfere with the cabin body 5. In this case, the sliding sleeve 16 and the second rotating arm 13 can be locked by a locking pin. When the contact surface between the cabin body 5 and the hatch cover 6 is a vertical plane and the thickness is large, interference is likely to occur. Remove the locking pin on the sliding sleeve 16 and the second rotating arm 13. When the hatch cover 6 is opened, the hinge seat is pushed by the drive mechanism 3, which first causes the spring connecting the first rotating arm 12 and the second rotating arm 13 to be compressed. The hatch cover 6 will have an upward movement, and then it will flip over. This can avoid interference between the hatch cover 6 and the cabin body 5.

[0047] Optionally, the swivel base 11 may only have its longitudinal plate 111 connected to the cabin 5, or both the longitudinal plate 111 and the transverse plate 112 may be connected to the cabin 5. The connection method can be selected according to the actual structure of the cabin 5. Furthermore, when the hatch 6 is long, a hatch 6 opening / closing structure can be provided at each end of the hatch 6 to improve stability. In this case, the size of the hinge base 18 can be reduced, i.e., the number of rotating arm assemblies can be reduced. For example, when two hatch 6 opening / closing structures are provided, the hinge frame 1 of each hatch 6 opening / closing structure can only have two rotating arm assemblies, such as... Figure 13 As shown.

[0048] The assembly method of the hatch cover 6 opening and closing structure and the cabin body 5 in this embodiment includes: First, assemble the rotating arm assembly, then assemble the rotating arm assembly, the rotary seat 11, and the fixed seat. Then, connect multiple rotating arm assemblies into one unit through the connecting rod 15, and finally connect the hinge seat 18 to the rotating arm assembly or the connecting rod 15.

[0049] Assemble the drive assembly, then connect the telescopic cylinder and telescopic rod to the hinge seat 18, and then connect the connecting rod 15 of the transmission box and the other end of the telescopic rod to the base 4.

[0050] The pre-installed section 21 of the reinforcing structure 2 and the swivel base 11 are simultaneously installed onto the cabin 5. The connection between the base 4 and the cabin 5 is then determined according to the installation position, and the base 4 is installed. Next, the fixed section of the reinforcing structure 2 is connected to the pre-installed section 21, and then the fixed section is connected to the cabin 5. If there is a gap between the fixed section and the cabin 5, it can be adjusted using a shim.

[0051] Install hatch 6, ensuring it is closed and connected to the connecting seat. Then conduct a trial run. If hatch 6 opens and closes without issue, the installation is complete.

[0052] If the hatch cover 6 is too large, causing significant tilting during the overturning process, the hatch cover 6 is removed, and an extension plate 141 and a gasket 142 are added to the connecting plate 14. The extension plate 141, gasket 142, and connecting plate 14 are simultaneously connected to the hatch cover 6 to enhance the connection stability. Optionally, a pre-embedded plate can be installed at the connection point between the hatch cover 6 and the connecting plate 14 to increase the connection strength.

[0053] Optionally, when the hatch 6 can open and close smoothly without being too high, the sliding sleeve 16 and the second rotating arm 13 are locked in place by a locking pin. When the hatch 6 interferes with the hull 5, the locking pin is removed, allowing the hatch 6 to be raised when opened, ensuring that the hatch 6 can open and close smoothly.

[0054] The application of the hatch cover 6 opening and closing structure of the present invention enables the hatch cover 6 to be opened and closed at a large angle on one side, while ensuring that the hatch cover 6 can withstand the external forces such as wind load and gas flow after it is opened to the full position, so that the structure is not damaged.

[0055] Furthermore, through the cooperation between its various components, the first rotating arm 12 and the second rotating arm 13 are elastically connected, enabling not only large-angle opening and closing of the hatch 6 on one side, but also adaptability to various hatch 6 and cabin 5 structures, thus having wide applications. The overall structure is reinforced, with the reinforcing structure 2 serving as a static support component and the follow-up tie rod as a dynamic support component; the two complement each other. Simultaneously, to improve the stability of the hatch 6 during opening and closing, the structural strength between this structure and the bottom plate of the cabin 5 is effectively enhanced, thereby improving the stability of the hatch 6 during opening and closing.

[0056] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and simple improvements made on the substantive content of the present invention should be included within the protection scope of the present invention.

Claims

1. A hatch opening and closing structure, characterized in that, include: A hinge frame includes multiple rotating arm assemblies arranged side by side. Each rotating arm assembly includes a swivel base, a first rotating arm, a second rotating arm, and a connecting seat. A first end of the first rotating arm is rotatably connected to the swivel base. A first end of the second rotating arm is elastically connected to a second end of the first rotating arm. The connecting seat is fixedly connected to the second end of the second rotating arm. The second end of the first rotating arm and the first end of the second rotating arm are connected by a connecting spring. A sliding sleeve is provided at the connection between the first rotating arm and the second rotating arm. The second end of the first rotating arm extends into the sliding sleeve and is fixedly connected to the sliding sleeve. The first end of the second rotating arm extends slidably into the sliding sleeve. The sliding sleeve is provided with a first locking hole, and the second rotating arm is provided with a second locking hole near the first end side wall. Locking pins are detachably inserted into the first locking hole and the second locking hole. The structure is reinforced and connected to part of the rotary seat; A drive mechanism, connected to the rotating arm assembly, is used to drive the rotating arm assembly to rotate.

2. The hatch opening and closing structure according to claim 1, characterized in that, Multiple connecting blocks are provided on both sides of the second rotating arm, and a connecting rod is provided between two adjacent second rotating arms. The two ends of the connecting rod are respectively connected to the connecting blocks of the two second rotating arms.

3. The hatch opening and closing structure according to claim 1, characterized in that, Two connecting blocks are provided on opposite sides of the outer wall of the sliding sleeve, and a connecting rod is provided between two adjacent second rotating arms. The two ends of the connecting rod are respectively connected to the connecting blocks of the two sliding sleeves.

4. The hatch opening and closing structure according to claim 1, characterized in that, The reinforcing structure includes a pre-installed section and a fixed section that are separately arranged. The first end of the pre-installed section is connected to the rotary seat, and the second end of the pre-installed section is connected to the first end of the fixed section.

5. The hatch opening and closing structure according to claim 4, characterized in that, The hatch opening and closing structure also includes a base, and the second end of the fixed section and the drive mechanism are both connected to the base.

6. The hatch opening and closing structure according to claim 5, characterized in that, The drive mechanism includes a drive motor and a telescopic cylinder, which are conventionally connected via a transmission box. A hinge rod is provided on the transmission box and is hinged to the base. The transmission box is equipped with a locking mechanism, which is used to lock the movement of the telescopic cylinder in the retraction direction.

7. The hatch opening and closing structure according to claim 6, characterized in that, The locking mechanism includes a ratchet, a locking pin, and a latch. The ratchet is fixedly connected to the drive shaft of the drive motor, and the end of the locking pin forms a pawl, which can be engaged with the ratchet. The pin is used to fix the position of the locking pin, so that the locking pin is kept in a non-engaged state with the ratchet.

8. The hatch opening and closing structure according to claim 6, characterized in that, The drive mechanism also includes a telescopic rod, which is disposed on the side of the telescopic rod. One end of the telescopic rod is connected to the hinge frame, and the other end of the telescopic rod is connected to the base.

9. The hatch opening and closing structure according to claim 1, characterized in that, The connecting seat is fixedly connected to the second end of the second rotating arm. The connecting seat includes a connecting plate with multiple connecting holes. The connector also includes an extension plate and a gasket. The extension plate is detachably connected to the connector, and the gasket is connected to the extension plate. The gasket and the connector are located on the same plane.

10. A modular shelter, characterized in that, It includes a cabin and a hatch, wherein the hatch is operably mounted on the cabin via the hatch opening and closing structure as described in any one of claims 1-9.

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