A flip-up hatch opening and closing mechanism

Abstract

The application relates to a high-speed train cabin door technical field and discloses an upturning type cabin door opening and closing mechanism, which comprises a cabin body, an internal cabin opening of the cabin body, a cabin door arranged in the internal cabin opening, and an internal wall surface of the cabin body which is tightly combined with the cabin door when the cabin door is closed. The upturning mechanism can effectively open the cabin door under the condition that the cabin body space is limited, a larger opening range is provided, and connection and maintenance operations are facilitated. The hand turning assembly can deal with emergency situations such as faults or power failure, an operator can directly perform manual operation, the locking state of the cabin door is released, the cabin door can be smoothly opened, and the reliability and safety in the emergency situation are ensured. The cabin door and the cabin opening can be tightly combined, air leakage, turbulent flow and irregular airflow are avoided, and air resistance is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of high-speed train cabin door technology, specifically to an upward-opening and closing mechanism for cabin doors. Background Technology

[0002] The existing engine room has a double door design on the left and right, which requires a large space to open. The two doors occupy a relatively wide space when open, which limits the available space on the train. Especially when the train is under maintenance or other work needs to be done close to the train, the double door opening method will interfere with the operation. Therefore, an upward-opening cabin door opening and closing mechanism is needed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an upward-opening cabin door mechanism, which solves the technical problem in the background technology where the left and right double-door design occupies a large amount of space, restricts the usable space of the train, and interferes with operation, especially during maintenance.

[0004] The technical solution of the present invention is as follows: an upward-opening hatch opening and closing mechanism, comprising...

[0005] The cabin has hatches inside;

[0006] The hatch is located inside the hatch opening and fits tightly against the inner wall surface of the cabin when closed, forming a flush connection with it.

[0007] An upward-flipping mechanism, located inside the cabin, is used to drive the cabin door upward to maximize its opening range when the cabin space is limited;

[0008] The tilting mechanism includes two tilting rods and two linkage rods symmetrically hinged on both sides of the hatch. One end of each adjacent tilting rod of the two linkage rods is hinged to the inner wall of the cabin. The cabin is equipped with a power assembly for providing tilting force to the two tilting rods.

[0009] A manual flip assembly is located inside the cabin on the side away from the power assembly, and is used to manually flip the two upward flip rods to open the cabin door in the event of a power failure.

[0010] Preferably, the power assembly includes a cylinder fixed inside the cabin, a connecting rod fixed to the telescopic end of the cylinder, an automatic rack at the bottom end of the connecting rod, a locking assembly inside the connecting rod, the automatic rack being fixed to the connecting rod via the locking assembly, the automatic rack meshing with an automatic gear, an automatic rotating shaft fixedly connected to the inner wall of the automatic gear, and the automatic rotating shaft being fixed to the top end of one of the upward-tilting rods.

[0011] Preferably, the engaging assembly includes a rectangular groove formed on the outer wall of the connecting rod. An electromagnet and a return spring are fitted inside the rectangular groove. The two ends of the return spring are fixed to the electromagnet and the rectangular groove, respectively. The top of the automatic rack has a connecting groove adapted to the connecting rod. The inner wall of the connecting groove has a slot adapted to the electromagnet. A magnet is fixed on the side of the inner wall of the slot opposite to the electromagnet. When the electromagnet is energized, it attracts the magnet and stretches the return spring.

[0012] Preferably, the manual flipping assembly includes a manual pivot shaft disposed on one side of the top of the other flipping rod. The manual pivot shaft is provided with a switching component inside. The other flipping rod is fixed to and separable from the manual pivot shaft through the switching component. A manual gear is fixed to the outer wall of the manual pivot shaft. The manual gear meshes with a manual rack. A lever assembly is provided on the side of the cabin away from the power assembly to provide a flipping force for the two flipping rods when the power is off.

[0013] Preferably, the switching assembly includes a rotating groove formed on one side of the top of another flip rod, which is adapted to the manual rotating shaft. The inner wall of the rotating groove has a fixed groove. One end of the manual rotating shaft adjacent to the rotating groove has a recess. A switching plate adapted to the fixed groove is arranged inside the recess. A partition is fixed to the inner wall of the recess. A slide rod is fixed to the side of the switching plate. A push-pull spring is sleeved on the outer wall of the slide rod. The two ends of the push-pull spring are fixed to the partition and the slide rod, respectively. An electromagnet is fixed inside the recess. A magnet is arranged on the side of the electromagnet. One end of the slide rod passes through the inner wall of the partition and is fixed to the magnet. When the electromagnet is energized, it attracts the magnet and pulls the switching plate out of the fixed groove.

[0014] Preferably, the lever assembly includes a rotating plate disposed inside the cabin body, a cross groove being provided on one side of the rotating plate, and a transmission assembly being disposed inside the cabin body. The rotating plate rotates by lever force reduction through the transmission assembly, and synchronously drives the two upward-opening rods to open the cabin door upward.

[0015] Preferably, the transmission assembly includes a worm gear fixed to the inner wall of the rotary plate, the worm gear meshing with a worm wheel, a transmission shaft fixed to the inner wall of the worm wheel, a driving wheel fixed to the outer wall of the transmission shaft, a driven wheel meshing with a driven wheel, a lead screw fixed to the inner wall of the driven wheel, and a stop cylinder threaded to the outer wall of the lead screw, the bottom end of the stop cylinder contacting the top of the manual rack.

[0016] Preferably, the outer wall of the hatch is fixed with a sealing ring that forms a tight seal with the inner wall of the hatch.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The present invention, through its upward-flipping mechanism, can effectively open the hatch when the cabin space is limited, providing a larger opening range and facilitating connection and maintenance operations.

[0019] 2. This invention addresses emergency situations such as malfunctions or power outages by using a manual flip-up component, allowing the operator to directly perform manual operation to unlock the hatch, thus ensuring that the hatch can be opened smoothly and guaranteeing reliability and safety in emergency situations.

[0020] 3. This invention can ensure a tight fit between the hatch and the opening, avoiding air leakage, turbulence and irregular airflow, thereby effectively reducing air resistance. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the planar structure proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure proposed in this invention;

[0024] Figure 3 This is a schematic diagram of a partially separated and enlarged structure proposed in this invention;

[0025] Figure 4 The present invention proposes Figure 2 Rear view structural diagram;

[0026] Figure 5 This is a partial cross-sectional view and enlarged structural schematic diagram of the present invention.

[0027] Figure 6 This is a schematic diagram of the three structures proposed in this invention.

[0028] In the picture:

[0029] 1. Cabin door;

[0030] 2. Flipping mechanism; 21. Flipping rod; 22. Linkage rod; 23. Power assembly; 231. Cylinder; 232. Connecting rod; 233. Automatic rack; 234. Automatic gear; 235. Automatic rotating shaft; 24. Engaging assembly; 241. Electromagnet one; 242. Return spring; 243. Slot; 244. Magnet one;

[0031] 3. Hand-operated assembly; 31. Switching assembly; 311. Rotating groove; 312. Fixed groove; 313. Switching plate; 314. Partition plate; 315. Slide rod; 316. Push-pull spring; 317. Magnet II; 318. Electromagnet II; 32. Lever assembly; 321. Rotating plate; 322. Cross groove; 323. Worm gear; 324. Worm wheel; 325. Drive shaft; 326. Driving wheel; 327. Driven wheel; 328. Lead screw; 329. Abutment; 33. Manual rotating shaft; 34. Manual gear; 35. Manual rack;

[0032] 4. Sealing ring. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] The existing engine compartment features a double-door design, requiring significant space to open. The two doors occupy a relatively wide area when open, limiting the usable space within the train. This is particularly problematic during train maintenance or other operations requiring proximity to the train, as the double-door opening method interferes with operations. Please refer to [link / reference]. Figures 1-6 This embodiment provides an upward-opening and closing mechanism for a hatch, including a cabin body with a hatch inside.

[0036] like Figure 4 As shown, hatch 1 is located inside the hatch and, when closed, fits tightly against the inner wall surface of the hull, forming a flush connection. A sealing ring 4 is fixed to the outer wall of hatch 1 to create a tight seal with the inner wall of the hatch, thereby reducing air resistance. The sealing ring 4 ensures a tight contact surface between hatch 1 and the hatch, eliminating gaps and reducing turbulence and airflow resistance. Furthermore, the sealing ring 4 helps create a continuous, smooth surface, allowing air to flow more smoothly at the contact point between hatch 1 and the hatch. The smoother the airflow, the lower the resistance. Through the action of the sealing ring 4, airflow can pass more evenly around hatch 1, reducing the phenomenon of increased airflow or resistance due to abrupt changes in streamlines.

[0037] like Figures 2-3As shown, in order to provide a larger opening space when space is limited, and to facilitate connection and maintenance operations, the following settings are made: the upward tilting mechanism 2 is located inside the cabin and is used to drive the cabin door 1 to tilt upward to maximize its opening range when the cabin space is limited. The upward tilting mechanism 2 includes two tilting rods 21 and two linkage rods 22 symmetrically hinged on both sides of the cabin door 1. One end of each of the two linkage rods 22 adjacent to the tilting rod 21 is hinged to the inner wall of the cabin. The cabin is equipped with a power assembly 23 for providing the tilting force to the two tilting rods 21. The power assembly 23 includes a cylinder 231 fixed inside the cabin. A connecting rod 232 is fixed to the telescopic end of the cylinder 231. An automatic rack 233 is provided at the bottom end of the connecting rod 232. A slider is fixed to the side of the automatic rack 233. A groove is provided on the inner wall of the cabin for the slider to slide. The connecting rod 232 is provided with a locking component 24. The automatic rack 233 is fixed to the connecting rod 232 through the locking component 24. The automatic rack 233 meshes with an automatic gear 234. An automatic rotating shaft 235 is fixedly connected to the inner wall of the automatic gear 234. The automatic rotating shaft 235 is fixed to the top of one of the upward flipping rods 21. The power unit 23 is activated to cause the two upward-flipping rods 21 to flip upward at a certain angle. The operation of the power unit 23 is as follows: the cylinder 231 is activated to push the connecting rod 232 downward at the telescopic end. The downward movement of the connecting rod 232 causes the automatic rack 233 to move downward and mesh with the automatic gear 234, which drives the automatic rotating shaft 235 to rotate. The rotation of the automatic rotating shaft 235 causes the two upward-flipping rods 21 to flip upward at a certain angle to achieve the upward-flipping action. The upward flipping of the two upward-flipping rods 21 can drive the hatch 1 to open the hatch. The two linkage rods 22 are set to keep the hatch 1 vertical and horizontal during the upward-flipping process. The upward-flipping opening of the hatch 1 can avoid the space requirements required for horizontal opening, so that the hatch 1 is not restricted by physical obstacles when it is opened, and can be operated and maintained more conveniently, providing greater flexibility and convenience.

[0038] like Figure 3As shown, the engaging assembly 24 includes a rectangular groove formed on the outer wall of the connecting rod 232. An electromagnet 241 and a return spring 242 are housed inside the rectangular groove. A slider 2 is fixed to the side of the electromagnet 241, and a sliding groove 2 is formed on the inner wall of the rectangular groove for the slider 2 to slide. The two ends of the return spring 242 are fixed to the electromagnet 241 and the rectangular groove, respectively. The top of the automatic rack 233 has a connecting groove adapted to the connecting rod 232. The inner wall of the connecting groove has a locking groove 243 adapted to the electromagnet 241. A magnet 243 is fixed to the side of the inner wall of the locking groove 243 opposite to the electromagnet 241. When the electromagnet 241 is energized, it attracts the magnet 243 and stretches the return spring 242. Under normal operating conditions, after the electromagnet 241 is energized, the generated magnetic force causes it to attract the magnet 244, thereby firmly locking the electromagnet 241 into the locking groove 243. In this state, the connecting rod 232 and the automatic rack 233 are fixedly connected. When the extension end of the cylinder 231 drives the connecting rod 232 to move up and down, the automatic rack 233 can move up and down synchronously with the connecting rod 232, thereby driving the hatch 1 to complete the opening and closing action. However, in the event of a malfunction or power failure, the electromagnet 241 loses its power and, after losing its magnetic force, is pulled back into the rectangular slot by the action of the return spring 242. In this case, the connecting rod 232 and the automatic rack 233 only maintain a contact relationship, losing their original fixed connection. To cope with this malfunction, the manual tilting assembly 3 is designed for intervention operation. The tilting lever 21 can be manually tilted to open the hatch 1. Therefore, even without power support, the hatch 1 can still be opened smoothly by manual operation, ensuring reliability and safety in emergency situations.

[0039] Example 2

[0040] Based on Example 1, and referring to Figures 4-6 As shown, the manual flip assembly 3 is located inside the cabin on the side away from the power assembly 23, and is used to manually flip the two flip levers 21 to open the cabin door 1 in the event of a power failure.

[0041] like Figures 4-5As shown, the manual tilting assembly 3 includes a manual pivot 33 located on one side of the top of another tilting lever 21. A manual gear 34 is fixed to the outer wall of the manual pivot 33, and the manual gear 34 meshes with a manual rack 35. A slider 3 is fixed to the side of the manual rack 35. A groove 3 is provided on the inner wall of the housing for the slider 3 to slide. A switching assembly 31 is provided inside the manual pivot 33. The switching assembly 31 includes a rotating groove 311 located on one side of the top of another tilting lever 21 that is adapted to the manual pivot 33. A fixed groove 312 is provided on the inner wall of the rotating groove 311. A recess is provided at one end of the manual pivot 33 adjacent to the rotating groove 311, and a groove is provided inside the recess that is adapted to the fixed groove 312. The switching plate 313 has a partition 314 fixed to the inner wall of the groove. A slide rod 315 is fixed to the side of the switching plate 313. A push-pull spring 316 is sleeved on the outer wall of the slide rod 315. The two ends of the push-pull spring 316 are fixed to the partition 314 and the slide rod 315 respectively. An electromagnet 318 is fixed inside the groove. A magnet 317 is provided on the side of the electromagnet 318. One end of the slide rod 315 passes through the inner wall of the partition 314 and is fixed to the magnet 317. When the electromagnet 318 is energized, it attracts the magnet 317 and pulls the switching plate 313 out of the fixed groove 312. Another flip rod 21 is fixed to the manual rotating shaft 33 through the switching assembly 31 and can be separated. A lever assembly 32 is provided on the side of the cabin away from the power assembly 23 to provide the flipping force for the two flip rods 21 when the power is off. The lever assembly 32 includes a rotating plate 321 set inside the cabin. A cross groove 322 is opened on one side of the rotating plate 321. Under normal operating conditions, when electromagnet 2 318 is energized, the magnetic force it generates attracts magnet 2 317, thereby driving slide bar 315 to move, so that switching plate 313 moves away from fixed groove 312. In this state, another flip bar 21 and manual rotating shaft 33 maintain a rotational relationship. When the power assembly 23 drives one of the flip-up levers 21 to rotate, the other flip-up lever 21 will also rotate synchronously, working together to complete the opening and closing of the hatch 1. When a malfunction or power failure occurs, the electromagnet 2 318 loses power and is simultaneously de-energized. The magnet 2 317, under the action of the push-pull spring 316, moves away from the electromagnet 2 318. At the same time, the slide rod 315 drives the switching plate 313 to insert into the fixed groove 312, forming a fixed relationship. In this case, the other flip-up lever 21 and the manual rotating shaft 33 no longer maintain a rotational relationship, but become a fixed connection. At this time, by inserting a specific tool into the cross groove 322 on the side of the rotating plate 321 and rotating it, the transmission assembly can be driven to run, thereby driving the two flip-up levers 21 to rotate synchronously, ultimately realizing the opening of the hatch 1. This ensures that even in the event of a power failure or malfunction, the hatch 1 can still be manually opened, ensuring safe operation in emergency situations.

[0042] like Figure 6As shown, a transmission assembly is installed inside the cabin. The rotating plate 321 rotates with lever reduction via the transmission assembly, causing the two upward-opening levers 21 to synchronously drive the cabin door 1 upward. The transmission assembly includes a worm gear 323 fixed to the inner wall of the rotating plate 321. The worm gear 323 meshes with a worm wheel 324. A transmission shaft 325 is fixed to the inner wall of the worm wheel 324. A driving wheel 326 is fixed to the outer wall of the transmission shaft 325. The driving wheel 326 meshes with a driven wheel 327. A lead screw 328 is fixed to the inner wall of the driven wheel 327. A stop cylinder 329 is threaded to the outer wall of the lead screw 328. A slider four is fixed to the outer wall of the stop cylinder 329. A groove four is provided on the inner wall of the cabin for the slider four to slide. The bottom end of the stop cylinder 329 contacts the top of the manual rack 35. A specific tool is inserted into the cross groove 322 on the side of the rotating plate 321 and rotated. The rotating plate 321 drives the worm 323 to rotate, and the worm 323 meshes with the worm wheel 324, which in turn drives the transmission shaft 325 to rotate. The rotation of the transmission shaft 325 drives the driving wheel 326 to rotate, and the driving wheel 326 meshes with the driven wheel 327, thereby driving the lead screw 328 to rotate. Since the diameter of the driving wheel 326 is smaller than that of the driven wheel 327, this difference creates a lever effect, which helps to reduce the force required to rotate the rotating plate 321. This is because the smaller diameter driving wheel 326 can generate a smaller torque when rotating compared to the larger diameter driven wheel 327. Specifically, the torque is proportional to the radius. When the radius of the driving wheel 326 is smaller, the force it needs to apply is relatively smaller. This is because, at the same rotation angle, the smaller wheel requires less rotational force, and the force can be amplified by the larger driven wheel 327. Rotating the lead screw 328 causes the abutment cylinder 329 to move down along the thread on its outer wall, pushing the manual rack 35 down to mesh with the manual gear 34. The rotation of the manual gear 34 then drives the manual shaft 33 to rotate, thereby flipping the lifting lever 21 and opening the hatch 1. This ensures that even in the event of power failure or security failure, the hatch 1 can still be opened smoothly by manual operation.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flip-up hatch opening and closing mechanism, characterized in that, include The cabin has hatches inside; The hatch (1) is located inside the hatch and fits tightly against the inner wall surface of the cabin when the hatch (1) is closed, forming a flush connection with it; The upward-flipping mechanism (2) is located inside the cabin and is used to drive the cabin door (1) upward to maximize its opening range when the space at the front of the cabin is restricted. The flipping mechanism (2) includes two flipping rods (21) and two linkage rods (22) symmetrically hinged on both sides of the hatch (1). One end of each of the two linkage rods (22) adjacent to the flipping rod (21) is hinged to the inner wall of the cabin. The cabin is equipped with a power assembly (23) for providing flipping force to the two flipping rods (21). A manual flip assembly (3) is located inside the cabin on the side away from the power assembly (23). It is used to manually flip the two flip levers (21) to open the cabin door (1) in the event of a power failure, replacing the power assembly (23). The manual flip assembly (3) includes a manual pivot (33) located on one side of the top of another flip lever (21). A switching assembly (31) is provided inside the manual pivot (33). The other flip lever (21) is fixed to and separable from the manual pivot (33) through the switching assembly (31). A manual gear (34) is fixed to the outer wall of the manual pivot (33). The manual gear (34) meshes with a manual rack (35). A lever assembly (32) is provided on the side of the cabin away from the power assembly (23) to provide flipping force to the two flip levers (21) when the power is off. The switching assembly (31) includes a slot (311) located on one side of the top of another flip rod (21) and adapted to the manual rotating shaft (33). The inner wall of the slot (311) has a fixed groove (312). One end of the manual rotating shaft (33) adjacent to the slot (311) has a recess. A switching plate (313) adapted to the fixed groove (312) is disposed inside the recess. A partition (314) is fixed to the inner wall of the recess. A sliding rod (315) is fixed to the side of the switching plate (313). 15) The outer wall is fitted with a push-pull spring (316), the two ends of which are fixed to the partition (314) and the slide rod (315) respectively. An electromagnet (318) is fixed inside the groove. A magnet (317) is provided on the side of the electromagnet (318). One end of the slide rod (315) passes through the inner wall of the partition (314) and is fixed to the magnet (317). When the electromagnet (318) is energized, it attracts the magnet (317) and pulls the switching plate (313) out of the fixed groove (312).

2. The upward-opening hatch opening and closing mechanism according to claim 1, characterized in that, The power assembly (23) includes a cylinder (231) fixed inside the cabin. A connecting rod (232) is fixed to the telescopic end of the cylinder (231). An automatic rack (233) is provided at the bottom end of the connecting rod (232). A locking assembly (24) is provided inside the connecting rod (232). The automatic rack (233) is fixed to the connecting rod (232) through the locking assembly (24). The automatic rack (233) meshes with an automatic gear (234). An automatic rotating shaft (235) is fixedly connected to the inner wall of the automatic gear (234). The automatic rotating shaft (235) is fixed to the top end of one of the upward-turning rods (21).

3. The upward-opening hatch opening and closing mechanism according to claim 2, characterized in that, The engaging assembly (24) includes a rectangular groove formed on the outer wall of the connecting rod (232). An electromagnet (241) and a pull-back spring (242) are fitted inside the rectangular groove. The two ends of the pull-back spring (242) are fixed to the electromagnet (241) and the rectangular groove, respectively. The top of the automatic rack (233) is provided with a connecting groove that matches the connecting rod (232). The inner wall of the connecting groove is provided with a slot (243) that matches the electromagnet (241). A magnet (244) is fixed on the inner wall of the slot (243) opposite to the electromagnet (241). When the electromagnet (241) is energized, it attracts the magnet (244) and stretches the pull-back spring (242).

4. The upward-opening hatch opening and closing mechanism according to claim 1, characterized in that, The lever assembly (32) includes a rotating plate (321) disposed inside the cabin. A cross groove (322) is provided on one side of the rotating plate (321). A transmission assembly is provided inside the cabin. The rotating plate (321) rotates by lever reduction through the transmission assembly, and the two upward-flipping rods (21) synchronously drive the cabin door (1) to flip upward.

5. The upward-opening hatch opening and closing mechanism according to claim 4, characterized in that, The transmission assembly includes a worm gear (323) fixed to the inner wall of the rotary plate (321), the worm gear (323) meshing with a worm wheel (324), a transmission shaft (325) fixed to the inner wall of the worm wheel (324), a drive wheel (326) fixed to the outer wall of the transmission shaft (325), a driven wheel (327) meshing with the driven wheel (326), a lead screw (328) fixed to the inner wall of the driven wheel (327), and a stop cylinder (329) threadedly connected to the outer wall of the lead screw (328). The bottom end of the stop cylinder (329) contacts the top of the manual rack (35).

6. The upward-opening hatch opening and closing mechanism according to claim 1, characterized in that, The outer wall of the hatch (1) is fixed with a sealing ring (4) that forms a tight seal with the inner wall of the hatch.

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