Automatic leveling device with follow-up lifting function

Abstract

This invention provides an automatic leveling device with a follow-up lifting function, belonging to the technical field of cargo loading and unloading equipment. It includes a drive device, a lifting device, a carrier plate, a limit switch, a leveling actuator, and a tilt sensor. The lifting device is connected to the drive device. One end of the carrier plate is movably connected to the lifting device. The limit switch is mounted on the carrier plate and is triggered when the carrier plate contacts the platform to be overlapped. One end of the leveling actuator is hinged to the lifting device, and the telescopic rod of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is connected below the carrier plate and parallel to the horizontal plane. When the platform to be overlapped lowers, the carrier plate is adjusted by the lifting device and / or the leveling actuator to eliminate the gap or angle between the platform to be overlapped and the carrier plate. When the platform to be overlapped rises, the tilt switch detects that the carrier plate has been lifted by a certain angle, and the lifting device and / or the leveling actuator are used to adjust the carrier plate, achieving the lifting and leveling of the carrier plate.

Description

Technical Field

[0001] This invention belongs to the technical field of cargo loading and unloading equipment, and particularly relates to an automatic leveling device with follow-up lifting function. Background Technology

[0002] In logistics loading and unloading, goods often need to be moved from trucks or ships onto pallets, or vice versa. During this process, the load on the truck or ship can change. When the load increases, the truck or ship will sink, causing a gap between the pallet and the platform. Without support, the pallet will wobble and deform, posing a safety hazard and hindering loading and unloading. Conversely, when the load decreases, the truck or ship will push the pallet upwards, which, while not damaging the pallet, can cause it to flip upwards, creating an angle with the horizontal plane, further complicating loading and unloading.

[0003] Therefore, there is an urgent need for a carrier plate device that can move up and down and adjust the angle as the platform being connected rises and falls.

[0004] Chinese utility model patent CN114892940A discloses an intelligent leveling lifting platform, including a construction platform, a lifting mechanism, a mounting base, and a leveling mechanism. The leveling mechanism includes a swing frame, a lifting assembly, a support assembly, and a drive assembly, with the swing frame rotatably mounted. When the intelligent leveling lifting platform of this invention is placed on an inclined surface, the downward-rotating end of the swing frame drives the lifting assembly of the leveling mechanism to a transmission position. The drive assembly then moves the lifting assembly, lifting the downward-rotating end of the swing frame to a horizontal position. The support assembly then locks the lifting assembly. Because the swing frame is in a horizontal position, the lifting mechanism and the construction platform on the swing frame are also in a horizontal position. The lifting mechanism then lifts the construction platform to the target position, resulting in low safety risks for construction workers standing on the platform. However, this lifting platform cannot automatically detect the position of the platform being connected, thus failing to achieve the functions of automatic follow-up lifting and angle leveling of the carrier plate. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides an automatic leveling device with a follow-up lifting function. The technical problem to be solved by the present invention is how to achieve the function of automatic follow-up lifting and angle leveling as the platform being stacked rises and falls.

[0006] To solve the above-mentioned technical problems, the present invention provides an automatic leveling device with follow-up lifting function, including a drive device, a lifting device, a carrier plate, a limit switch, a leveling actuator and a tilt sensor;

[0007] The lifting device is connected to the drive device, and the lifting device can move along a direction perpendicular to the horizontal plane under the drive of the drive device;

[0008] One end of the carrier plate is hinged to the lifting device, and a limit switch is set on the carrier plate. When the carrier plate contacts the platform to be lapped, the limit switch is triggered. One end of the leveling actuator is hinged to the lifting device, and the other end of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is set on the carrier plate and is parallel to the horizontal plane.

[0009] When the platform being overlapped descends, there is a gap between the platform being overlapped and the carrier plate. The limit switch is disconnected and sends a signal to the drive device. The drive device drives the lifting device to descend. When the carrier plate touches the platform being overlapped and the carrier plate is parallel to the horizontal plane, the limit switch sends a signal to the drive device, and the lifting device stops descending, thus realizing the follow-up lifting and lowering of the carrier plate.

[0010] When the platform is raised, the carrier plate flips upwards at an angle. The tilt sensor detects that the carrier plate has an angle with the horizontal plane. The tilt sensor transmits a signal to the drive device, which drives the lifting device to rise. After the tilt sensor detects that the carrier plate has returned to horizontal under the action of gravity, the tilt sensor transmits a signal to the drive device, which stops working and the lifting device stops rising, thus realizing the automatic leveling of the carrier plate.

[0011] This invention provides an automatic leveling device with follow-up lifting function, including a drive device, a lifting device, a carrier plate, a limit switch, a leveling actuator, and a tilt sensor;

[0012] The lifting device is hinged to the drive device, and the lifting device can rotate around a fixed point under the drive of the drive device;

[0013] One end of the carrier plate is hinged to the lifting device, and a limit switch is set on the carrier plate. When the carrier plate contacts the platform to be lapped, the limit switch is triggered. One end of the leveling actuator is hinged to the lifting device, and the other end of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is set on the carrier plate and is parallel to the horizontal plane.

[0014] When the platform being overlapped descends, a gap exists between the platform and the carrier plate. The limit switch disconnects and sends a signal to the drive unit. The drive unit drives the lifting device to rotate and descend around the fixed point. At the same time, the tilt sensor detects that the carrier plate forms an angle with the horizontal plane. The tilt sensor sends a signal to the leveling actuator, which levels the carrier plate. When the carrier plate touches the platform being overlapped, the carrier plate becomes parallel to the horizontal plane. The limit switch sends a signal to the drive unit, which stops working, and the lifting device stops descending, thus realizing the follow-up lifting and automatic leveling of the carrier plate.

[0015] When the platform being lapped rises, the carrier plate flips upwards at an angle. The tilt sensor detects the angle between the carrier plate and the horizontal plane and sends a signal to the drive unit. The drive unit then drives the lifting device to rotate and rise. When the distance between the carrier plate and the platform being lapped reaches a safe distance, the tilt sensor sends a signal to the leveling actuator. The leveling actuator and the lifting device work together to automatically level and follow up on the carrier plate. When the carrier plate touches the platform being lapped and becomes parallel to the horizontal plane, the limit switch sends a signal to the drive unit, and the lifting device stops descending, completing the automatic leveling and following up on the carrier plate.

[0016] This invention provides an automatic leveling device with follow-up lifting function, including a drive device, a lifting device, a carrier plate, a limit switch, a leveling actuator, and a tilt sensor;

[0017] The lifting device is hinged to the drive device, and the lifting device can rotate around a fixed point under the drive of the drive device;

[0018] One end of the carrier plate is hinged to the lifting device, and a limit switch is set on the carrier plate. When the carrier plate contacts the platform to be supported, the limit switch is triggered. One end of the leveling actuator is hinged to the lifting device, and the other end of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is connected to the bottom of the carrier plate and is parallel to the horizontal plane.

[0019] When the platform being overlapped descends, a gap exists between the platform and the carrier plate. The limit switch disconnects and sends a signal to the drive unit. The drive unit drives the lifting device to rotate and descend around the fixed point. At the same time, the tilt sensor detects that the carrier plate forms an angle with the horizontal plane. The tilt sensor sends a signal to the leveling actuator, which levels the carrier plate. When the carrier plate touches the platform being overlapped, the carrier plate becomes parallel to the horizontal plane. The limit switch sends a signal to the drive unit, which stops working, and the lifting device stops descending, thus realizing the follow-up lifting and automatic leveling of the carrier plate.

[0020] When the platform being overlapped rises, the carrier plate flips upwards at an angle. The tilt sensor detects the angle between the carrier plate and the horizontal plane and sends a signal to the drive unit. The drive unit then drives the lifting device to rotate and rise. When the distance between the carrier plate and the platform being overlapped reaches a safe distance, the tilt sensor sends a signal to the leveling actuator. The leveling actuator and the lifting device perform multiple leveling and lowering operations until the carrier plate touches the platform being overlapped and becomes parallel to the horizontal plane. At this point, the limit switch sends a signal to the drive unit, and the lifting device stops lowering, completing the automatic leveling and follow-up lifting of the carrier plate.

[0021] Furthermore, the carrier plate is provided with a sliding groove.

[0022] Furthermore, the groove is a sector-shaped groove.

[0023] Furthermore, the leveling actuator includes a telescopic rod.

[0024] Furthermore, one end of the leveling actuator is hinged to the lifting device via hinge point B, and the telescopic rod of the leveling actuator is slidably connected to the slide groove via hinge point C.

[0025] Furthermore, one end of the carrier plate is hinged to the lifting device via hinge point A.

[0026] Furthermore, the lifting device rotates around the hinge point D.

[0027] Furthermore, the drive device can be a pneumatic device, a hydraulic device, or an electric motor drive device.

[0028] This invention discloses an automatic leveling device with a follow-up lifting function. When the platform to be overlapped lowers, a lifting device and / or a leveling actuator adjusts the carrier plate to eliminate the gap or angle between the platform and the carrier plate. When the platform to be overlapped rises, a tilt switch detects that the carrier plate has been lifted by a certain angle, such as 1 degree. The lifting device and / or the leveling actuator then adjust the carrier plate to achieve both lifting and leveling. By incorporating a sliding groove on the carrier plate, damage to the leveling actuator is avoided during the upward lifting process of the platform to be overlapped. This device achieves the function of the carrier plate following the rise and fall of the platform to automatically adjust its angle. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an automatic leveling device according to the present invention. Figure 1 .

[0030] Figure 2 This is a schematic diagram of the leveling state of an automatic leveling device according to the present invention. Figure 1 .

[0031] Figure 3 This is a schematic diagram of the structure of an automatic leveling device according to the present invention. Figure 2 .

[0032] Figure 4 This is a schematic diagram of the leveling state of an automatic leveling device according to the present invention. Figure 2 .

[0033] Among them, 1-limit switch; 2-carrier plate; 3-slide groove; 4-leveling actuator; 5-tilt sensor; 6-drive device; 7-lifting device; 8-hinge point A; 9-hinge point B; 10-hinge point C; 11-hinge point D; 12-column; 13-platform to be overlapped. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] 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 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] To better understand the purpose, structure, and function of this invention, the following detailed description of an automatic leveling device with a follow-up lifting function is provided in conjunction with the accompanying drawings.

[0039] Example 1:

[0040] like Figure 1 As shown, a first embodiment of an automatic leveling device with follow-up lifting function of the present invention includes a drive device 6, a lifting device 7, a carrier plate 2, a limit switch 1, a leveling actuator 4, and a tilt sensor 5;

[0041] The lifting device 7 is connected to the drive device 6, and the lifting device 7 can move along a direction perpendicular to the horizontal plane under the drive of the drive device 6.

[0042] One end of the carrier plate 2 is hinged to the lifting device 7. The limit switch 1 is set on the carrier plate 2. When the carrier plate 2 contacts the platform 13 to be supported, the limit switch is triggered. One end of the leveling actuator 4 is hinged to the lifting device 7, and the other end of the leveling actuator 4 is slidably connected to the carrier plate 2. The tilt sensor 5 is set on the carrier plate 2 and is parallel to the horizontal plane.

[0043] When the platform 13 is lowered, there is a gap between the platform 13 and the carrier plate 2. The drive device 6 drives the lifting device 7 to lower. When the carrier plate 2 touches the platform 13, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops lowering, thus realizing the follow-up lifting and lowering of the carrier plate 2.

[0044] When the platform 13 is raised, the carrier plate 2 flips upward at an angle. The tilt sensor 5 detects that the carrier plate 2 has an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, and the drive device 6 drives the lifting device 7 to rise. After the tilt sensor 5 detects that the carrier plate 2 has returned to horizontal under the action of gravity, the tilt sensor 5 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops rising, thus realizing the automatic leveling of the carrier plate 2.

[0045] Example 2:

[0046] like Figure 1 As shown, a second embodiment of an automatic leveling device with follow-up lifting function of the present invention includes a drive device 6, a lifting device 7, a carrier plate 2, a limit switch 1, a leveling actuator 4, and a tilt sensor 5;

[0047] The lifting device 7 is connected to the drive device 6, and the lifting device 7 can move along a direction perpendicular to the horizontal plane under the drive of the drive device 6.

[0048] One end of the carrier plate 2 is hinged to the lifting device 7. The limit switch 1 is set on the carrier plate 2. When the carrier plate 2 contacts the platform 13 to be supported, the limit switch is triggered. One end of the leveling actuator 4 is hinged to the lifting device 7, and the other end of the leveling actuator 4 is slidably connected to the carrier plate 2. The tilt sensor 5 is set on the carrier plate 2 and is parallel to the horizontal plane.

[0049] When the platform 13 is lowered, there is a gap between the platform 13 and the carrier plate 2. The drive device 6 drives the lifting device 7 to lower. When the carrier plate 2 touches the platform 13, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops lowering, thus realizing the follow-up lifting and lowering of the carrier plate 2.

[0050] When the platform 13 is raised, the carrier plate 2 flips upward at an angle. The tilt sensor 5 detects that the carrier plate 2 has an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, and the drive device 6 drives the lifting device 7 to rise. After the tilt sensor 5 detects that the carrier plate 2 has returned to horizontal under the action of gravity, the tilt sensor 5 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops rising, thus realizing the automatic leveling of the carrier plate 2.

[0051] The difference between this embodiment and the first embodiment is that:

[0052] The lower surface of carrier plate 2 is parallel to the horizontal plane;

[0053] One end of the carrier plate 2 is movably connected to the lifting device 7 via hinge point A8;

[0054] The leveling actuator 4 includes a telescopic rod, which automatically levels the carrier plate 2 by extending and retracting the telescopic rod. When the telescopic rod extends, the carrier plate 2 rotates upward; when the telescopic rod retracts, the carrier plate 2 rotates downward.

[0055] One end of the leveling actuator 4 is movably connected to the lifting device 7 via hinge point B9. A slide groove 3 is provided on the carrier plate 2. One end of the telescopic rod of the leveling actuator 4 is slidably connected to the slide groove 3 via hinge point C10.

[0056] The slide 3 is a fan-shaped groove. When the platform 13 is raised, the carrier plate 2 can achieve a certain angle of upward flipping action, while also preventing the leveling actuator 4 from being damaged.

[0057] like Figure 2 As shown, the working process of an automatic leveling device with follow-up lifting function in this embodiment is as follows:

[0058] This example illustrates the process of moving goods from carrier plate 2 to the ship and vice versa, but this embodiment is not limited to this scenario.

[0059] Cargo is transferred from carrier plate 2 to the ship: As the cargo on the ship gradually increases, there is a gap between the deck and carrier plate 2 when the deck is lowered. The staff or control system starts the drive device 6, which drives the lifting device 7 to descend along the column 12. When the carrier plate 2 touches the platform 13, the limit switch 1 is triggered. The limit switch 1 transmits a signal to the drive device 6, which stops operating and the lifting device 7 stops descending, thereby realizing the follow-up lifting and lowering of the lower surface of the carrier plate 2.

[0060] Cargo is transferred from the ship to the carrier plate 2: As the cargo on the ship gradually decreases, the carrier plate 2 is lifted by the deck and rotates upwards at an angle as the deck rises. The slide 3 rotates upwards along with the carrier plate 2. After the tilt sensor 5 detects that the carrier plate 2 has an angle with the horizontal plane, the tilt sensor 5 transmits a signal to the drive device 6. The drive device 6 drives the lifting device 7 to rise along the column 12. After the tilt sensor 5 detects that the carrier plate 2 has returned to horizontal under the action of gravity, the tilt sensor 5 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops rising, thereby achieving the leveling of the lower surface of the carrier plate 2.

[0061] Example 3:

[0062] like Figure 3 As shown, a third embodiment of the automatic leveling device with follow-up lifting function of the present invention includes a drive device 6, a lifting device 7, a carrier plate 2, a limit switch 1, a leveling actuator 4, and a tilt sensor 5.

[0063] The lifting device 7 is hinged to the drive device 6, and the lifting device 7 can rotate around a fixed point under the drive of the drive device 6.

[0064] One end of the carrier plate 2 is hinged to the lifting device 7. The limit switch 1 is set on the carrier plate 2. When the carrier plate 2 contacts the platform 13 to be supported, the limit switch is triggered. One end of the leveling actuator 4 is hinged to the lifting device 7, and the other end of the leveling actuator 4 is slidably connected to the carrier plate 2. The tilt sensor 5 is set on the carrier plate 2 and is parallel to the horizontal plane.

[0065] When the platform 13 is lowered, there is a gap between the platform 13 and the carrier plate 2. The drive device 6 drives the lifting device 7 to rotate and lower around the fixed point. At the same time, the tilt sensor 5 detects that the carrier plate 2 is at an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the leveling actuator 4, and the leveling actuator 4 levels the carrier plate 2. When the carrier plate 2 touches the platform 13, the carrier plate 2 is parallel to the horizontal plane. The limit switch 1 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops lowering, realizing the follow-up lifting and automatic leveling of the carrier plate 2.

[0066] When the platform 13 is raised, the carrier plate 2 flips upwards. The tilt sensor 5 detects that the carrier plate 2 forms an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, which drives the lifting device 7 to rotate and rise. When the distance between the carrier plate 2 and the platform 13 reaches a safe distance, the tilt sensor 5 transmits a signal to the leveling actuator 4. The leveling actuator 4 and the lifting device 7 are linked and controlled to automatically level and follow up the lifting of the carrier plate 2. When the carrier plate 2 touches the platform 13 and becomes parallel to the horizontal plane, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops descending, completing the automatic leveling and following up of the lifting of the carrier plate 2.

[0067] Example 4:

[0068] like Figure 3 As shown, a fourth embodiment of an automatic leveling device with follow-up lifting function of the present invention includes a drive device 6, a lifting device 7, a carrier plate 2, a limit switch 1, a leveling actuator 4, and a tilt sensor 5;

[0069] The lifting device 7 is hinged to the drive device 6, and the lifting device 7 can rotate around a fixed point under the drive of the drive device 6.

[0070] One end of the carrier plate 2 is hinged to the lifting device 7. The limit switch 1 is set on the carrier plate 2. When the carrier plate 2 contacts the platform 13 to be supported, the limit switch is triggered. One end of the leveling actuator 4 is hinged to the lifting device 7, and the other end of the leveling actuator 4 is slidably connected to the carrier plate 2. The tilt sensor 5 is set on the carrier plate 2 and is parallel to the horizontal plane.

[0071] When the platform 13 is lowered, there is a gap between the platform 13 and the carrier plate 2. The drive device 6 drives the lifting device 7 to rotate and lower around the fixed point. At the same time, the tilt sensor 5 detects that the carrier plate 2 is at an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the leveling actuator 4, and the leveling actuator 4 levels the carrier plate 2. When the carrier plate 2 touches the platform 13, the carrier plate is parallel to the horizontal plane. The limit switch 1 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops lowering, realizing the follow-up lifting and automatic leveling of the carrier plate 2.

[0072] When the platform 13 is raised, the carrier plate 2 flips upwards. The tilt sensor 5 detects that the carrier plate 2 forms an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, which drives the lifting device 7 to rotate and rise. When the distance between the carrier plate 2 and the platform 13 reaches a safe distance, the tilt sensor 5 transmits a signal to the leveling actuator 4. The leveling actuator 4 and the lifting device 7 are linked and controlled to automatically level and follow up the lifting of the carrier plate 2. When the carrier plate 2 touches the platform 13 and becomes parallel to the horizontal plane, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops descending, completing the automatic leveling and following up of the lifting of the carrier plate 2.

[0073] The difference between this embodiment and the third embodiment is that:

[0074] The lower surface of carrier plate 2 is parallel to the horizontal plane;

[0075] One end of the carrier plate 2 is movably connected to the lifting device 7 via hinge point A8;

[0076] The leveling actuator 4 includes a telescopic rod, which automatically levels the carrier plate 2 by extending and retracting the telescopic rod. When the telescopic rod extends, the carrier plate 2 rotates upward; when the telescopic rod retracts, the carrier plate 2 rotates downward.

[0077] One end of the leveling actuator 4 is movably connected to the lifting device 7 via hinge point B9. A slide groove 3 is provided on the carrier plate 2. The telescopic rod of the leveling actuator 4 is slidably connected to the slide groove 3 via hinge point C10.

[0078] Slide 3 is a sector-shaped groove.

[0079] The lifting device 7 rotates around the hinge point D11;

[0080] The drive unit 6 is hinged to one side of the lifting unit 7;

[0081] The drive device 6 is a pneumatic device, a hydraulic device, or an electric motor drive device.

[0082] like Figure 4 As shown, the working process of an automatic leveling device with follow-up lifting function in this embodiment is as follows:

[0083] This example illustrates the process of moving goods from carrier plate 2 to the ship and vice versa, but this embodiment is not limited to this scenario.

[0084] Initially, before the goods are moved, the lower surface of the carrier plate 2 is manually controlled to be in contact with the overlapping table surface 13.

[0085] Cargo is transferred from carrier plate 2 to the ship: As the amount of cargo on the ship gradually increases, the weight of the cargo changes, the deck descends, and a gap is created between the overlapping platform 13 and the carrier plate 2. At this time, the limit switch 1 contacts open, and then the drive device 6 receives a signal from the limit switch 1. The drive device 6 drives the lifting device 7 to rotate and descend around the fixed point. At the same time, the tilt sensor 5 transmits a signal to the leveling actuator 4, and the leveling actuator 4 levels the carrier plate 2. When the carrier plate 2 touches the overlapping platform 13, the carrier plate 2 is parallel to the horizontal plane, the limit switch 1 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops descending, thereby realizing the leveling of the lower surface of the carrier plate 2.

[0086] Cargo is transferred from the ship to platform 2: As the cargo on the ship gradually decreases, the platform 2 rotates upward around hinge point A8 as the deck rises. The tilt sensor 5 transmits a signal to the drive device 6, which drives the lifting device 7 to rotate and rise. When the platform 2 reaches a safe distance from the platform 13, the tilt sensor 5 transmits a signal to the leveling actuator 4. The leveling actuator 4 and the lifting device 7 work together to control the lifting device 7. The leveling actuator 4 extends its telescopic rod to lift the platform 2 upward, coordinating with the descent of the lifting device 7. At the same time, the lower surface of the platform 2 is automatically leveled and raised and lowered. When the platform 2 touches the platform 13 and becomes parallel to the horizontal plane, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops descending, completing the automatic leveling and raising and lowering of the lower surface of the platform 2.

[0087] Example 5:

[0088] like Figure 3 As shown, a fifth embodiment of an automatic leveling device with follow-up lifting function of the present invention includes a drive device 6, a lifting device 7, a carrier plate 2, a limit switch 1, a leveling actuator 4, and a tilt sensor 5;

[0089] The lifting device 7 is hinged to the drive device 6, and the lifting device 7 can rotate around a fixed point under the drive of the drive device 6.

[0090] One end of the carrier plate 2 is hinged to the lifting device 7. The limit switch 1 is set on the carrier plate 2. When the carrier plate 2 contacts the platform 13 to be supported, the limit switch is triggered. One end of the leveling actuator 4 is hinged to the lifting device 7, and the other end of the leveling actuator 4 is slidably connected to the carrier plate 2. The tilt sensor 5 is connected below the carrier plate 2 and is parallel to the horizontal plane.

[0091] When the platform 13 is lowered, there is a gap between the platform 13 and the carrier plate 2; the drive device 6 drives the lifting device 7 to rotate and lower around the fixed point. At the same time, the tilt sensor 5 detects that the carrier plate 2 and the horizontal plane are at an angle. The tilt sensor 5 transmits a signal to the leveling actuator 4, and the leveling actuator 4 levels the carrier plate 2; when the carrier plate 2 touches the platform 13, the carrier plate is parallel to the horizontal plane. The limit switch 1 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops lowering, realizing the follow-up lifting and automatic leveling of the carrier plate 2.

[0092] When the platform 13 is raised, the carrier plate 2 flips upward. The tilt sensor 5 detects that the carrier plate 2 forms an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, which drives the lifting device 7 to rotate and rise. When the distance between the carrier plate 2 and the platform 13 reaches a safe distance, the tilt sensor 5 transmits a signal to the leveling actuator 4. The leveling actuator 4 and the lifting device 7 perform multiple leveling and lowering operations until the carrier plate 2 touches the platform 13 and is parallel to the horizontal plane. The limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops lowering, completing the automatic leveling and follow-up lifting of the carrier plate 2.

[0093] Specifically, one end of the carrier plate 2 is movably connected to the lifting device 7 via hinge point A8;

[0094] The leveling actuator 4 includes a telescopic rod, which automatically levels the carrier plate 2 by extending and retracting the telescopic rod. When the telescopic rod extends, the carrier plate 2 rotates upward; when the telescopic rod retracts, the carrier plate 2 rotates downward.

[0095] One end of the leveling actuator 4 is movably connected to the lifting device 7 via hinge point B9. A slide groove 3 is provided on the carrier plate 2. The telescopic rod of the leveling actuator 4 is slidably connected to the slide groove 3 via hinge point C10.

[0096] Slide 3 is a sector-shaped groove;

[0097] The lifting device 7 rotates around the hinge point D11;

[0098] The drive unit 6 is hinged to one side of the lifting unit 7;

[0099] The drive device 6 is a pneumatic device, a hydraulic device, or an electric motor drive device.

[0100] like Figure 4 As shown, the working process of an automatic leveling device with follow-up lifting function in this embodiment is as follows:

[0101] This example illustrates the process of moving goods from carrier plate 2 to the ship and vice versa, but this embodiment is not limited to this scenario.

[0102] Cargo is transferred from carrier plate 2 to the ship: As the amount of cargo on the ship gradually increases, the weight of the cargo changes, the deck descends, and a gap is created between the overlapping platform 13 and the carrier plate 2. At this time, the limit switch 1 contacts open, and then the drive device 6 receives a signal from the limit switch 1. The drive device 6 drives the lifting device 7 to rotate and descend around the fixed point. Simultaneously, the tilt sensor 5 transmits a signal to the leveling actuator 4, and the leveling actuator 4 levels the carrier plate 2. When the carrier plate 2 touches the overlapping platform 13, the carrier plate 2 is parallel to the horizontal plane, the limit switch 1 transmits a signal to the drive device 6, the drive device 6 stops working, and the lifting device 7 stops descending, thereby achieving the leveling of the lower surface of the carrier plate 2.

[0103] Cargo is transferred from the ship to the carrier plate 2: As the cargo on the ship gradually decreases, the carrier plate 2 rotates upward around the hinge point A8 as the deck rises. The tilt sensor 5 detects that the carrier plate 2 forms an angle with the horizontal plane. The tilt sensor 5 transmits a signal to the drive device 6, which drives the lifting device 7 to rotate and rise. When the distance between the carrier plate 2 and the platform 13 being overlapped reaches a safe distance, the following actions are performed: the tilt sensor 5 transmits a signal to the leveling actuator 4, which extends its telescopic rod to lift the carrier plate 2 upward and level it. Then the lifting device 7 lowers the carrier plate (or the lifting device 7 lowers the carrier plate first, and then the leveling actuator 4 extends its telescopic rod to lift the carrier plate 2 upward and level it). Accordingly, the leveling actuator 4 and the lifting device 7 perform multiple leveling and lowering operations in succession; until the carrier plate 2 touches the platform 13 to be connected, the limit switch 1 transmits a signal to the drive device 6, and the lifting device 7 stops lowering, thus completing the automatic leveling and follow-up lifting of the lower surface of the carrier plate 2.

[0104] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Where there is no contradiction, the embodiments can be combined with each other to form new embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. An automatic leveling device with a follow-up lifting function, characterized in that, Includes drive unit, lifting unit, carrier plate, limit switch, leveling actuator and tilt sensor; The lifting device is hinged to the drive device, and the lifting device can rotate around a fixed point under the drive of the drive device; One end of the carrier plate is hinged to the lifting device, and a limit switch is set on the carrier plate. When the carrier plate contacts the platform to be lapped, the limit switch is triggered. One end of the leveling actuator is hinged to the lifting device, and the other end of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is set on the carrier plate and is parallel to the horizontal plane. When the overlapping platform descends, there is a gap between the overlapping platform and the carrier plate. The limit switch is disconnected and a signal is transmitted to the drive device. The drive unit drives the lifting device to rotate and descend around a fixed point. At the same time, the tilt sensor detects that the carrier plate makes an angle with the horizontal plane. The tilt sensor transmits a signal to the leveling actuator, which levels the carrier plate. When the carrier plate touches the platform to be supported, the limit switch transmits a signal to the drive unit, the carrier plate becomes parallel to the horizontal plane, the drive unit stops working, and the lifting device stops descending, thus realizing the follow-up lifting and automatic leveling of the carrier plate. When the platform being overlapped rises, the carrier plate flips upwards at an angle. The tilt sensor detects that the carrier plate makes an angle with the horizontal plane and sends a signal to the drive device. The drive device then drives the lifting device to rotate and rise. When the distance between the carrier plate and the platform being overlapped reaches a safe distance, the tilt sensor sends a signal to the leveling actuator. The leveling actuator and the lifting device work together to automatically level and follow up on the carrier plate. When the carrier plate touches the platform being overlapped and becomes parallel to the horizontal plane, the limit switch sends a signal to the drive device, and the lifting device stops descending, completing the automatic leveling and following up on the carrier plate. The carrier plate has a sliding groove; The leveling actuator includes a telescopic rod; One end of the leveling actuator is hinged to the lifting device through hinge point B, and the telescopic rod of the leveling actuator is slidably connected to the slide groove through hinge point C.

2. An automatic leveling device with a follow-up lifting function, characterized in that, Includes drive unit, lifting unit, carrier plate, limit switch, leveling actuator and tilt sensor; The lifting device is hinged to the drive device, and the lifting device can rotate around a fixed point under the drive of the drive device; One end of the carrier plate is hinged to the lifting device, and a limit switch is set on the carrier plate. When the carrier plate contacts the platform to be supported, the limit switch is triggered. One end of the leveling actuator is hinged to the lifting device, and the other end of the leveling actuator is slidably connected to the carrier plate. The tilt sensor is connected to the bottom of the carrier plate and is parallel to the horizontal plane. When the overlapping platform descends, there is a gap between the overlapping platform and the carrier plate. The limit switch is disconnected and a signal is transmitted to the drive device. The drive unit drives the lifting device to rotate and descend around a fixed point. At the same time, the tilt sensor detects that the carrier plate makes an angle with the horizontal plane. The tilt sensor transmits a signal to the leveling actuator, which levels the carrier plate. When the carrier plate touches the platform to be supported, the carrier plate is parallel to the horizontal plane. The limit switch transmits a signal to the drive unit, the drive unit stops working, and the lifting device stops descending, realizing the follow-up lifting and automatic leveling of the carrier plate. When the platform being overlapped rises, the carrier plate flips upwards at an angle. The tilt sensor detects that the carrier plate makes an angle with the horizontal plane. The tilt sensor transmits a signal to the drive device, which drives the lifting device to rotate and rise. When the distance between the carrier plate and the platform being overlapped reaches a safe distance, the tilt sensor transmits a signal to the leveling actuator. The leveling actuator and the lifting device perform multiple leveling and lowering operations until the carrier plate touches the platform being overlapped and is parallel to the horizontal plane. At this point, the limit switch transmits a signal to the drive device, and the lifting device stops lowering, completing the automatic leveling and follow-up lifting of the carrier plate. The carrier plate has a sliding groove; The leveling actuator includes a telescopic rod; One end of the leveling actuator is hinged to the lifting device through hinge point B, and the telescopic rod of the leveling actuator is slidably connected to the slide groove through hinge point C.

3. The automatic leveling device with follow-up lifting function according to claim 1 or 2, characterized in that, The groove is a sector-shaped groove.

4. The automatic leveling device with follow-up lifting function according to claim 3, characterized in that, One end of the carrier plate is hinged to the lifting device through hinge point A.

5. The automatic leveling device with follow-up lifting function according to any one of claims 1 or 2, characterized in that, The lifting device rotates around hinge point D.

6. The automatic leveling device with follow-up lifting function according to claim 5, characterized in that, The drive device can be a pneumatic device, a hydraulic device, or an electric motor drive device.

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