Case and airborne landing door with same

Abstract

The utility model discloses a machine case and an airborne landing door with the machine case, the machine case comprises a case body, a driving mechanism is arranged in the case body, an output shaft of the driving mechanism extends out of the case body to be connected with an external channel blocking piece, and the driving mechanism can drive the channel blocking piece to rise upwards to be opened or fall downwards to be closed; a containing groove is formed in the side wall of the box body in an inward concave mode, the containing groove extends in the height direction of the box body and penetrates through the upper wall of the box body upwards, the output shaft is arranged in the containing groove in the width direction of the box body, and the opened channel blocking piece is located in the containing groove. The case has the advantages of being compact in structure and small in size, the occupied space is small, cost can be reduced easily, meanwhile, the installation position of the airborne door can be selected conveniently and freely, and wide application and popularization of the airborne door are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electric door technology, and in particular to a chassis and an air-drop door having the same. Background Technology

[0002] Airlock gates are widely used at highway toll stations, parking lots, residential communities, and enterprise entrances to facilitate the orderly management of vehicle access. They can also be heightened for use at villa and courtyard entrances for security purposes. An airlock gate consists of a housing and a gate assembly. The gate assembly includes a front beam and a bottom beam positioned opposite each other, along with several vertical bars positioned between them. The ends of the vertical bars are rotatably connected to the front and bottom beams. A drive mechanism within the housing raises and lowers the gate assembly. When the gate assembly rises, the front and bottom beams rotate relative to each other, causing the vertical bars to tilt. When the gate assembly lowers, the front and bottom beams rotate relative to each other, causing the vertical bars to be perpendicular to the front and bottom beams. Thus, the airlock gate opens by raising the gate assembly, which then folds back into the housing. The gate closes by lowering the gate assembly, which then lays horizontally on the ground.

[0003] Existing airlock door structures, such as the one disclosed in patent publication CN219671173U, include a main chassis and a secondary chassis, with a drive shaft between them. The main chassis houses a drive motor connected to the drive shaft. The middle section of the drive shaft connects to the door assembly, and both ends of the drive shaft are connected to a first bearing seat in the main chassis and a second bearing seat in the secondary chassis, respectively. This allows the drive motor to rotate the drive shaft, raising the door assembly for folding and stowing between the main and secondary chassis, or lowering the door assembly to lay horizontally on the ground. This design distributes internal components across two chassis, increasing cost and increasing the chassis size. Furthermore, it requires reserving space between the two chassis for the door assembly to rise, resulting in a significant space requirement for the entire chassis and door assembly during installation, thus limiting the installation location of the airlock door. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, one of the objectives of this utility model is to provide a chassis that is compact in structure and small in size, which not only occupies little space but also helps to reduce costs.

[0005] The second objective of this utility model is to provide an air-drop gate that occupies less space when open, allowing for more flexible selection of installation locations and facilitating the widespread promotion and use of air-drop gates.

[0006] One of the objectives of this utility model is achieved through the following technical solution:

[0007] A chassis includes: a housing, a drive mechanism disposed inside the housing, an output shaft of the drive mechanism extending out of the housing to connect to an external channel stop, the drive mechanism being capable of driving the channel stop to rise upward to open or descend downward to close.

[0008] The side wall of the housing is recessed inward and has a storage groove. The storage groove extends along the height of the housing and passes through the upper wall of the housing. The output shaft is located in the storage groove along the width of the housing. The channel stop is located in the storage groove after opening.

[0009] In a preferred embodiment, the storage slot includes a first storage slot for accommodating the output shaft and a second storage slot for accommodating the channel baffle. The first and second storage slots are arranged adjacent to each other along the length direction of the housing and are connected. Both the first and second storage slots extend along the height direction of the housing and penetrate the upper wall of the housing upward.

[0010] The height of the second storage slot is equal to the height of the box body, the height of the first storage slot is less than the height of the second storage slot, and the width of the second storage slot is greater than the width of the channel baffle when it is open.

[0011] In a preferred embodiment, the channel stop is a gate assembly, and the output shaft is connected to the gate assembly via a rotating mechanism. The rotating mechanism is located in the first storage slot, with one end of the rotating mechanism fixedly connected to the output shaft and the other end of the rotating mechanism extending out of the storage slot to connect to the gate assembly.

[0012] In a preferred embodiment, the central axes of the box and the storage slot extend along the length direction and coincide, and the box has accommodating spaces on both sides of the storage slot in the width direction.

[0013] In a preferred embodiment, the box includes a main body and two lids, which are respectively located on both sides of the main body in the width direction to form a receiving space between the main body and the two corresponding lids. The storage slot is located on the side wall of the main body.

[0014] In a preferred embodiment, the main body and the lid are snapped together and fixed. The side of the main body in the width direction is provided with a slot, and the lid is provided with a matching card corresponding to the slot. The card is snapped into the slot.

[0015] And / or, a baffle is provided on the side of the main body in the width direction, and the box cover is provided with a rotatable locking member corresponding to the baffle. The locking member can be rotated to separate from the baffle or blocked on the side of the baffle close to the main body.

[0016] In a preferred embodiment, the housing is further provided with a traction mechanism. The traction mechanism and the drive mechanism are respectively located in the accommodating spaces on both sides. The end of the output shaft away from the drive mechanism extends into the accommodating space on the opposite side and is connected to the traction mechanism through a connecting rod. One end of the connecting rod is fixedly connected to the output shaft, and the other end of the connecting rod is rotatably connected to the traction mechanism.

[0017] When the drive mechanism drives the output shaft to rotate so as to cause the channel stop to descend, the traction mechanism is in a stretched state.

[0018] In a preferred embodiment, the traction mechanism includes a traction rod, a spring assembly, and a connector. The top end of the spring assembly is rotatably connected to the connecting rod via the traction rod, and the bottom end of the spring assembly is fixed inside the housing via the connector.

[0019] In a preferred embodiment, the drive mechanism includes a drive motor and a transmission mechanism. The transmission mechanism includes a lead screw that is driven by the drive motor, a nut that is threadedly connected to the lead screw, a first connecting rod that is rotatably connected to the nut, and a second connecting rod that is rotatably connected to the first connecting rod. One end of the second connecting rod is fixedly connected to the output shaft.

[0020] The lead screw's axis extends along the height of the housing, and the lead screw is spaced apart on one side of the output shaft along the length of the housing.

[0021] In a preferred embodiment, the rotating mechanism includes a connecting block and a connecting beam. The connecting block is fixedly sleeved on the output shaft, and the connecting beam is fixedly connected to the connecting block and extends out of the receiving groove to connect to the face beam of the door assembly.

[0022] The second storage slot is equipped with a follow-up mechanism located below the rotating mechanism. The follow-up mechanism includes a fixed block and a connecting block. The fixed block is fixed to the housing, one end of the connecting block is rotatably connected to the fixed block, and the other end of the connecting block extends out of the storage slot to rotatably connect to the bottom beam of the door assembly.

[0023] The second objective of this utility model is achieved by the following technical solution:

[0024] An air-drop door includes: a door panel assembly and the aforementioned chassis, wherein the door panel assembly serves as a channel stop and is connected to an output shaft;

[0025] The drive mechanism drives the output shaft to rotate, thereby causing the door assembly to rise to open or fall to close. When opened, the door assembly is located in the storage slot.

[0026] In a preferred embodiment, the gate assembly includes a front beam and a bottom beam spaced apart from each other, and a plurality of vertical bars are spaced apart along the length of the front beam and the bottom beam, with the two ends of the vertical bars respectively rotatably connected to the front beam and the bottom beam.

[0027] The chassis and air-drop door provided by this utility model have the following technical effects:

[0028] 1. The drive mechanism and other components of the chassis are all housed within a single enclosure. The side wall of the enclosure has an inwardly recessed storage groove that extends along the height of the enclosure and penetrates the upper wall. This groove houses the output shaft of the drive mechanism, and allows the channel baffle to be positioned within it after opening. This design results in a compact and small chassis, minimizing space requirements and reducing costs.

[0029] 2. The connection between the door assembly and the chassis of the air-drop gate is achieved through a storage slot. When the door assembly descends to close the air-drop gate, it extends along the length of the storage slot. When the door assembly rises to open the air-drop gate, it folds back into the storage slot. Thus, regardless of whether the air-drop gate is closed or open, its width is the same as the width of the chassis. This minimizes the space occupied by the air-drop gate, allowing for more flexible selection of its installation location and facilitating its widespread adoption and use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the air-drop door in the closed state of this utility model;

[0031] Figure 2 This is a schematic diagram of the chassis structure of this utility model;

[0032] Figure 3 This is an exploded view of the housing, rotating mechanism, and follower mechanism of this utility model;

[0033] Figure 4 This is a cross-sectional view of the box body of this utility model in the height direction;

[0034] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0035] Figure 6 for Figure 4 Enlarged view at point B in the middle;

[0036] Figure 7 This is a partial sectional view showing the connection between the drive mechanism and the traction mechanism of this utility model via an output shaft;

[0037] Figure 8 This is a top sectional view of the chassis of this utility model;

[0038] Figure 9 This is a schematic diagram of the drive mechanism and traction mechanism of this utility model;

[0039] Figure 10 This is an exploded view of the connection structure between the rotating mechanism, the follower mechanism, and the gate assembly of this utility model;

[0040] Figure 11 This is a structural diagram of the air-drop door of this utility model in the open state.

[0041] The meanings of the reference numerals in the attached figures are as follows:

[0042] 1. Box body; 11. First storage slot; 12. Second storage slot; 13. Accommodation space; 14. Reinforcing plate; 15. Main body; 151. Card slot; 16. Box cover; 161. Card; 17. Baffle; 18. Locking component; 19. Fixing component; 2. Drive mechanism; 21. Drive motor; 22. Transmission mechanism; 221. Lead screw; 222. Nut; 223. First connecting rod; 224. Second connecting rod; 23. Protective sleeve; 24. Output shaft; 3. Control mechanism; 4. Rotation mechanism; 41. Connecting block; 42. Connecting beam; 5. Screw; 6. Traction mechanism; 61. Traction rod; 62. Spring assembly; 63. Connecting component; 7. Connecting rod; 8. Follow-up mechanism; 81. Fixing block; 82. Adapter block; 9. Bearing; 10. Chassis; 20. Door assembly; 201. Top beam; 202. Bottom beam; 203. Vertical rod. Detailed Implementation

[0043] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0046] See Figure 1-4 and Figure 11This utility model provides a chassis, including: a chassis 1, a drive mechanism 2 inside the chassis 1, an output shaft 24 of the drive mechanism 2 extending out of the chassis 1 to connect to an external channel stop, the drive mechanism 2 being able to drive the channel stop to rise upward to open or fall downward to close; a storage groove is provided inwardly on the side wall of the chassis 1, the storage groove extends along the height direction of the chassis and passes through the upper wall of the chassis 1, the output shaft 24 is located in the storage groove along the width direction of the chassis 1, and the opened channel stop is located in the storage groove.

[0047] by Figure 2 Taking the directions shown as reference, the x-direction is the length direction of the box 1, the y-direction is the width direction of the box 1, and the z-direction is the height direction of the box 1. The storage slot can be opened at any position on the side wall of the box 1, as long as the storage slot extends along the height direction of the box 1 and penetrates the upper wall of the box 1 upwards. This allows one end of the channel baffle to extend into the storage slot and connect to the output shaft 24. Thus, the output shaft 24 can drive the channel baffle to rotate and rise to open or descend to close within the storage slot.

[0048] The drive mechanism 2 is electrically connected to the control mechanism 3. The drive mechanism 2 and the control mechanism 3 are located inside the housing 1. They can be located at any position around the storage slot, as long as the control mechanism 3 can electrically control the drive mechanism 2 to drive the output shaft 24 to rotate, thereby causing the channel stop to rotate and rise to open or fall to close.

[0049] The drive mechanism 2 and other components of the chassis 10 are all housed within a single enclosure 1. The side wall of the enclosure 1 has an inwardly recessed storage groove that extends along the height of the enclosure 1 and penetrates its upper wall. This groove houses the output shaft 24 of the drive mechanism, and allows the channel baffle to be positioned within it after opening. Thus, the chassis is compact and small in size, occupying less space and reducing costs.

[0050] The storage slot includes a first storage slot 11 for accommodating the output shaft 24 and a second storage slot 12 for accommodating the channel stop. The first storage slot 11 and the second storage slot 12 are adjacent and connected along the length of the housing 1. Both the first storage slot 11 and the second storage slot 12 extend upward through the upper wall of the housing 1 along its height. The height of the second storage slot 12 is equal to the height of the housing 1, the height of the first storage slot 11 is less than the height of the second storage slot 12, and the width of the second storage slot 12 is greater than the width of the channel stop in its open state. The first storage slot 11 is used to house the output shaft 24, and its smaller height helps to improve the strength of the housing 1. The second storage slot 12 is used to accommodate the channel stop in its open state, and its height is equal to the height of the housing 1 to ensure the normal lifting and rotating of the channel stop. The width of the second storage slot 12 is greater than the width of the channel baffle when it is open. If the channel baffle shakes along the width direction due to factors such as wind or lifting, the second storage slot 12 can provide sufficient space for the channel baffle to shake, thereby preventing the channel baffle from colliding with the box 1 and ensuring the long-term use of the box 1 and the channel baffle.

[0051] The passage stop is a gate assembly 20. The output shaft 24 is connected to the gate assembly 20 via a rotating mechanism 4. The rotating mechanism 4 is located in the first storage slot 11. One end of the rotating mechanism 4 is fixedly connected to the output shaft, and the other end of the rotating mechanism 4 extends out of the storage slot to connect to the gate assembly 20. The drive mechanism 2 controls the output shaft 24 to rotate via the control mechanism 3, so as to synchronously drive the gate assembly 20 to rotate upward to open or downward to close via the rotating mechanism 4. When the gate assembly 20 is in the open state, it is housed in the second storage slot 12.

[0052] The central axes of the housing 1 and the storage slot extend along their lengths and coincide. The housing 1 has accommodating spaces 13 on both sides of the storage slot in the width direction. The coincidence of the storage slot with the central axis of the housing 1, and the even distribution of accommodating spaces on both sides of the storage slot, helps improve the stability of the housing 10, allowing for stable lifting and lowering of the channel baffle. The two accommodating spaces 13 can be set independently or connected.

[0053] The housing 1 includes a main body 15 and two lids 16. The two lids 16 are respectively located on both sides of the main body 15 in the width direction, so as to form a receiving space 13 between the main body 15 and the corresponding two lids 16. The storage slots are provided on the side walls of the main body 15. Both lids 16 and the main body 15 are detachably connected, so that after installing internal components such as the drive mechanism 2 and the control mechanism 3 in the receiving space 13, the two lids 16 are respectively installed on both sides of the main body 15 in the width direction to cover the receiving space.

[0054] The two covers 16 and the main body 15 can be connected by screws 5. In order to ensure the airtightness of the connection between the cover 16 and the main body 15 and to prevent water from entering the containment space 13, so as to ensure that the chassis 10 can be used normally for a long time, the cover 16 and the main body 15 need to be connected by multiple screws 5.

[0055] Based on this, refer to Figure 4-6 The main body 15 is snapped and fixed to the lid 16. The side of the main body 15 in the width direction is provided with a slot 151, and the lid 16 is provided with a corresponding card 161 in the slot 151. The card 161 is snapped into the slot 151. The accommodating space 13 of the main body 15 can be provided with slots 151 on all sides, and the corresponding card 161 is provided on the accommodating space 16. After the internal components such as the drive mechanism 2 and the control mechanism 3 are installed in the accommodating space 13, the card 161 of the lid 16 is snapped into the corresponding slot 151 to achieve the closing of the lid 16 and the main body 15, thereby forming a sealed box 1.

[0056] A baffle 17 is provided on the side of the main body 15 in the width direction. The lid 16 is provided with a rotatable locking member 18 corresponding to the baffle 17. The locking member 18 can be rotated to separate from the baffle 17 or to block the baffle 17 on the side closer to the main body 15. The locking member 18 can be rotated with the aid of an external force, such as a key, on the side of the lid 16 away from the main body 15. When the locking member 18 is rotated to separate from the baffle 17, the lid 16 can be unlocked from the main body 15, thereby allowing the lid 16 to be removed from the main body 15. Alternatively, when the locking member 18 is rotated to partially overlap with the baffle 17 and the locking member 18 is blocked on the side of the baffle 17 closer to the main body 15, the lid 16 can be locked to the main body 15, ensuring the reliability of the connection between the lid 16 and the main body 15.

[0057] The two connection structures of the cover 16 and the main body 15 can be selected, but it is preferred to set both, so that on the basis of the snap-fit ​​connection between the cover 16 and the main body 15, a locking structure of baffle 17 and locking member 18 is set to ensure the sealing and reliability of the connection of the box body 1.

[0058] In addition, the main body 15 is provided with reinforcing plates 14 on both sides facing the two box covers 16. The reinforcing plates 14 are fixed to the circumferential edge of the main body 15 by screws 5, so as to improve the structural strength of the box body 1 by means of the reinforcing plates 14.

[0059] For the lifting structure of the drive channel stop of the chassis 10, generally, the output shaft 24 is located in the first receiving slot 11 and extends along the width direction into the receiving space 13, connecting to the drive mechanism 2. The drive mechanism 2 drives the output shaft 24 to rotate, and through the rotating mechanism 4, drives the gate assembly 20 to rise to open or fall to close. However, the initial speed and running speed of the drive mechanism 2 are relatively high, which will drive the output shaft 24 to rotate at a relatively fast speed. This will cause the gate assembly 20 to start suddenly when it begins to lift or lower, and the speed during the lifting or lowering process to be too fast. Especially when the gate assembly 20 is lowering, the excessively fast rotation speed will cause the gate assembly 20 to fall heavily to the ground, affecting the stability and service life of the gate assembly 20.

[0060] To resolve this issue, see [link / reference] Figure 7 The housing 1 is also equipped with a traction mechanism 6. The traction mechanism 6 and the drive mechanism 2 are respectively located in the two-sided accommodating spaces 13. The end of the output shaft 24 away from the drive mechanism 2 extends into the opposite accommodating space 13 and is connected to the traction mechanism 6 through a connecting rod 7. One end of the connecting rod 7 is fixedly connected to the output shaft 24, and the other end of the connecting rod 7 is rotatably connected to the traction mechanism 6. When the drive mechanism 2 drives the output shaft 24 to rotate so as to drive the channel stop to descend, the traction mechanism 6 is in a stretched state.

[0061] The traction mechanism 6 can be stretched during the rotation of the output shaft 24. Specifically, when the control mechanism 3 controls the drive mechanism 2 to start, thereby driving the output shaft 24 to rotate and causing the channel stop to descend and close via the rotation mechanism 4, the traction mechanism 6 is stretched to act as a buffer, thereby controlling the speed at which the output shaft 24 drives the channel stop to rotate and descend via the rotation mechanism 4, so that the channel stop can descend stably to the ground. Furthermore, during the process when the control mechanism 3 controls the drive mechanism 2 to reverse and drive the output shaft 24 to rotate in the opposite direction, the rebound force of the traction mechanism 6 gives the output shaft 24 a certain rotational speed, thereby reducing the power output of the drive mechanism 2 and reducing the load on the drive mechanism 2.

[0062] The control mechanism 3 and the drive mechanism 2 are located on the same side of the main body 15 in the width direction, which facilitates electrical connection between the two and convenient wiring. The drive mechanism 2 and the traction mechanism 6 are distributed on both sides of the main body 15 in the width direction. This ensures the uniform distribution of the internal components of the housing 1, thereby improving the stability of the housing 10. It also allows both ends of the output shaft 24 to extend along the width direction into the accommodating spaces 13 on both sides, so as to respectively drive the drive mechanism 2 and connect to the traction mechanism 6 through the connecting rod 7. This ensures that both ends of the output shaft 24 are supported, and the middle area of ​​the output shaft 24 is connected to the channel stop through the rotating mechanism 4, thereby achieving uniform force on the output shaft 24 and stably driving the lifting and lowering of the channel stop.

[0063] See Figure 4 and Figure 9 The traction mechanism 6 includes a traction rod 61, a spring assembly 62, and a connecting member 63. The top end of the spring assembly 62 is rotatably connected to a connecting rod 7 via the traction rod 61, and the bottom end of the spring assembly 62 is fixed inside the housing 1 via the connecting member 63. The traction mechanism 6 is installed within the receiving space 13, which is equipped with a fixing member 19 fixedly connected to the main body 15. The bottom end of the traction mechanism 6 is connected to the fixing member 19 via the connecting member 63 to lock the bottom end of the traction mechanism 6. The connecting member 63 is located at the bottom end of the spring assembly 62, which includes multiple springs extending along the height direction and arranged side by side; the specific number depends on actual needs. The top of the spring assembly 62 is rotatably connected to the connecting rod 7 via the traction rod 61. When the output shaft 24 drives the channel stop to rotate and descend via the rotating mechanism 4, the connecting rod 7, which rotates synchronously with the output shaft 24, stretches the spring assembly 62 upward, thereby using a buffering effect to stabilize the descent of the channel stop. When the output shaft 24 drives the channel stop to rotate in the opposite direction and rise via the rotating mechanism 4, the rebound force of the spring assembly 62 provides power for the rotation of the output shaft 24 through the connecting rod 7, thereby reducing the output power of the drive mechanism 2.

[0064] The drive mechanism 2 includes a drive motor 21 and a transmission mechanism 22. The control mechanism 3 is electrically connected to the drive motor 21, and the drive motor 21 is connected to the output shaft 24 via the transmission mechanism 22. The drive motor 21 is arranged along the height direction, and the transmission mechanism 22 achieves the purpose of deceleration and changes the direction of rotation to match the rotation of the output shaft 24.

[0065] The transmission mechanism 22 includes a lead screw 221 that is connected to the drive motor 21, a nut 222 that is threaded to the lead screw 221, a first connecting rod 223 that is rotatably connected to the nut 222, and a second connecting rod 224 that is rotatably connected to the first connecting rod 223. One end of the second connecting rod 224 is fixedly connected to the output shaft 24. The axis of the lead screw 221 extends along the height direction of the housing 1, and the lead screw 221 is spaced apart on one side of the output shaft 24 along the length direction of the housing 1.

[0066] The output end of the drive motor 21 extends along the height direction and is connected to the lead screw 221 to drive the lead screw 221 to rotate forward or backward, causing the nut 222 sleeved on the lead screw 221 to move upward or downward. In the width direction, a shaft structure protrudes from the side of the nut 222 to be rotatably connected to the first connecting rod 223, and a shaft structure protrudes from the second connecting rod 224 in the same direction to be rotatably connected to the first connecting rod 223. Thus, during the upward movement of the nut 222, the first connecting rod 223 and the second connecting rod 224 drive the output shaft 24 to rotate forward, thereby lowering the channel stop via the rotation mechanism 4. During the downward movement of the nut 222, the first connecting rod 223 and the second connecting rod 224 drive the output shaft 24 to rotate in the opposite direction, thereby raising the channel stop via the rotation mechanism 4. This transmission mechanism 22 has a simple structure and can precisely transmit power to ensure the rotation angle range of the output shaft 24, achieving precise raising and lowering of the channel stop.

[0067] In the width direction, first connecting rods 223 are rotatably connected to opposite sides of the nut 222. Similarly, two second connecting rods 224 are provided to ensure stable transmission between the transmission mechanism 22 and the output shaft 24. Furthermore, a protective sleeve 23 is fitted over the outside of the transmission mechanism 22, covering the end of the output shaft 24 near the transmission mechanism 22 and the two second connecting rods 224 to protect the transmission effect between the transmission mechanism 22 and the output shaft 24.

[0068] It should be noted that the protective sleeve 23 must not interfere with the transmission of the transmission mechanism 22 or the rotation of the output shaft 24. Furthermore, in conjunction with... Figure 7 To improve the smoothness of the rotation of the output shaft 24, bearings 9 can be installed between the output shaft 24, the protective sleeve 23, and the main body 15.

[0069] Based on the above structure, the drive mechanism 2 and the traction mechanism 6 cooperate to control the rotation of the output shaft 24, so as to realize the raising and lowering of the gate assembly 20 through the rotation mechanism 4. (See also...) Figure 2-3 and Figure 10 The rotating mechanism 4 includes a connecting block 41 and a connecting beam 42. The connecting block 41 is fixedly sleeved on the output shaft 24, and the connecting beam 42 is fixedly connected to the connecting block 41 and extends out from the storage groove to connect the top beam 201 of the door assembly 20. The second storage groove 12 is provided with a follower mechanism 8, which is located below the rotating mechanism 4. The follower mechanism 8 includes a fixing block 81 and a transition block 82. The fixing block 81 is fixed on the housing 1, one end of the transition block 82 is rotatably connected to the fixing block 81, and the other end of the transition block 82 extends out from the storage groove to rotatably connect to the bottom beam 202 of the door assembly 20.

[0070] The connecting block 41 is fixedly sleeved on the output shaft 24 and connected to the connecting beam 42 by screws 5 and other structures. The end of the face beam 201 of the gate assembly 20 near the housing 10 is hollow, so that the connecting beam 42 can be inserted into the corresponding end of the face beam 201 and fixed by screws 5, thereby realizing the fixed connection between the rotating mechanism 4 and the face beam 201. In this way, when the output shaft 24 rotates, it can drive the rotating mechanism 4 and the gate assembly 20 to rotate synchronously to realize the lifting and lowering of the gate assembly 20.

[0071] The rotating mechanism 4 is generally located on the upper part of the first storage groove 11 to connect the face beam 201. In order to ensure the stability of the rotation of the door assembly 20, a follower mechanism 8 is provided below the rotating mechanism 4. When the output shaft 24 rotates and drives the rotating mechanism 4 and the door assembly 20 to rotate synchronously, the bottom beam 202 rotates relative to the fixed block 81 through the adapter block 82, so that the upper and lower ends of the door assembly 20 have rotation fulcrums, which improves the stability of the rotation of the door assembly 20.

[0072] See Figure 1-2 and Figure 11 The present invention also provides an air-drop door, including: a door panel assembly 20 and the aforementioned housing 10. The door panel assembly 20 is a channel stop and is connected to an output shaft 24. The drive mechanism 2 drives the output shaft 24 to rotate, thereby causing the door panel assembly 20 to rise to open or descend to close. After opening, the door panel assembly 20 is located in a storage slot.

[0073] When the gate assembly 20 descends to close the airlock door, it unfolds along its length from the outer edge of the storage slot. When the gate assembly 20 rises to open the airlock door, it folds back into the storage slot. Thus, regardless of whether the airlock door is closed or open, its width is the same as the width of a chassis, resulting in a smaller footprint and allowing for more flexible installation location selection, which is beneficial for the widespread adoption and use of airlock doors.

[0074] Specifically, the gate assembly 20 includes a face beam 201 and a bottom beam 202 that are spaced apart from each other. A number of vertical rods 203 are spaced apart along the length of the face beam 201 and the bottom beam 202, and the two ends of the vertical rods 203 are rotatably connected to the face beam 201 and the bottom beam 202, respectively.

[0075] One end of the top beam 201 near the housing 10 is fixedly connected to the rotating mechanism 4. The other end of the bottom beam 202 near the housing 10 is rotatably connected to the fixed block 81 via the adapter block 82. The drive mechanism 2, in conjunction with the traction mechanism 6, drives the output shaft 24 to rotate. When the output shaft 24 drives the top beam 201 to rotate and rise via the rotating mechanism 4, the top beam 201 drives the bottom beam 202 to rotate and rise synchronously via the vertical rod 203 until the door assembly 20 is folded and stored in the second storage slot 12. At this time, the top beam 201 and the bottom beam 202 extend along the height direction, and the vertical rod 203 is inclined. Similarly, when the output shaft 24 drives the top beam 201 to rotate and fall via the rotating mechanism 4, the top beam 201 drives the bottom beam 202 to rotate and fall synchronously via the vertical rod 203 until the door assembly falls to the ground. At this time, the top beam 201 and the bottom beam 202 extend along the length direction, and the vertical rod 203 is vertically set.

[0076] Thus, the air-drop gate of this utility model not only occupies little space, but also enables the stable lifting and lowering of the gate assembly 20, which is conducive to the widespread promotion and use of air-drop gates.

[0077] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A chassis, characterized in that, include: The housing contains a drive mechanism. The output shaft of the drive mechanism extends out of the housing to connect to an external channel stop. The drive mechanism can drive the channel stop to rise to open or descend to close. The side wall of the box is recessed inward and has a storage groove. The storage groove extends along the height of the box and passes through the upper wall of the box. The output shaft is located in the storage groove along the width of the box. The channel stop is located in the storage groove when opened.

2. The chassis according to claim 1, characterized in that: The storage slot includes a first storage slot for accommodating the output shaft and a second storage slot for accommodating the channel stop. The first storage slot and the second storage slot are arranged adjacently and connected along the length direction of the housing. Both the first storage slot and the second storage slot extend along the height direction of the housing and penetrate the upper wall of the housing upward. The height of the second storage slot is equal to the height of the box body, the height of the first storage slot is less than the height of the second storage slot, and the width of the second storage slot is greater than the width of the channel baffle in the open state.

3. The chassis according to claim 2, characterized in that: The channel stop is a gate assembly. The output shaft is connected to the gate assembly via a rotating mechanism. The rotating mechanism is located in the first storage slot. One end of the rotating mechanism is fixedly connected to the output shaft, and the other end of the rotating mechanism extends out of the storage slot to connect to the gate assembly.

4. The chassis according to any one of claims 1-3, characterized in that: The central axis of the box and the storage slot extends along the length direction and coincides. The box has a receiving space on both sides of the storage slot in the width direction.

5. The chassis according to claim 4, characterized in that: The box includes a main body and two lids. The two lids are respectively located on both sides of the main body in the width direction to form the receiving space between the main body and the two corresponding lids. The storage slot is located on the side wall of the main body.

6. The chassis according to claim 5, characterized in that: The main body is snapped and fixed to the box lid. The side of the main body in the width direction is provided with a slot. The box lid is provided with a matching card corresponding to the slot. The card is snapped in the slot. And / or, a baffle is provided on the side of the main body in the width direction, and the box cover is provided with a rotatable locking member corresponding to the baffle. The locking member can be rotated to separate from the baffle or block the baffle on the side close to the main body.

7. The chassis according to claim 4, characterized in that: The housing is also equipped with a traction mechanism. The traction mechanism and the drive mechanism are respectively located in the accommodating spaces on both sides. The end of the output shaft away from the drive mechanism extends into the accommodating space on the opposite side and is connected to the traction mechanism through a connecting rod. One end of the connecting rod is fixedly connected to the output shaft, and the other end of the connecting rod is rotatably connected to the traction mechanism. When the drive mechanism drives the output shaft to rotate so as to cause the channel stop to descend, the traction mechanism is in a stretched state.

8. The chassis according to claim 7, characterized in that: The traction mechanism includes a traction rod, a spring assembly, and a connecting member. The top end of the spring assembly is rotatably connected to the connecting rod via the traction rod, and the bottom end of the spring assembly is fixed inside the housing via the connecting member.

9. The chassis according to claim 1, characterized in that: The drive mechanism includes a drive motor and a transmission mechanism. The transmission mechanism includes a lead screw that is driven by the drive motor, a nut that is threadedly connected to the lead screw, a first connecting rod that is rotatably connected to the nut, and a second connecting rod that is rotatably connected to the first connecting rod. One end of the second connecting rod is fixedly connected to the output shaft. The axis of the lead screw extends along the height direction of the housing, and the lead screw is spaced apart on one side of the output shaft along the length direction of the housing.

10. The chassis according to claim 3, characterized in that: The rotating mechanism includes a connecting block and a connecting beam. The connecting block is fixedly sleeved on the output shaft, and the connecting beam is fixedly connected to the connecting block and extends out from the storage groove to connect to the face beam of the door assembly. The second storage slot is provided with a follow-up mechanism located below the rotating mechanism. The follow-up mechanism includes a fixed block and a connecting block. The fixed block is fixed to the box body. One end of the connecting block is rotatably connected to the fixed block. The other end of the connecting block extends out of the storage slot to rotatably connect to the bottom beam of the door assembly.

11. An air-drop door, characterized in that, include: The gate assembly and the chassis according to any one of claims 1-10, wherein the gate assembly is the channel stop and the gate assembly is connected to the output shaft; The drive mechanism drives the output shaft to rotate, thereby causing the gate assembly to rise to open or fall to close. When opened, the gate assembly is located in the storage slot.

12. The air-drop door according to claim 11, characterized in that: The gate assembly includes a front beam and a bottom beam that are spaced apart from each other. A number of vertical rods are spaced apart along the length of the front beam and the bottom beam, and the two ends of the vertical rods are respectively rotatably connected to the front beam and the bottom beam.

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