Hoisting device and method

Abstract

This invention relates to the field of lifting equipment, specifically disclosing a lifting device and method, including a first lifting structure and a second lifting structure mounted on a bracket. The first lifting structure includes a first movable body, a first gear rotatable on the first movable body, a first rack meshing with one side of the first gear, and a second rack meshing with the other side of the first gear. The bottom of the first rack is connected to a suction cup that can hold the left side of the top surface of an object. The bottom of the second rack is connected to a base plate, and a spring is connected to the base plate. The top of the spring is connected to an L-shaped support plate that can lift and support the bottom right side of the object. A pull rope is connected to the first gear, and the bottom of the pull rope is connected to a hook that can hook the object. The first movable body is equipped with a first motor connected to the first gear and capable of driving the first gear to rotate. When transporting objects between conveyor belts, this method reduces shaking and avoids vibration damage upon landing; it also prevents water leakage and temperature changes during transport, and automatically disinfects the object using the transport power.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment, and in particular to a lifting device and method. Background Technology

[0002] Current lifting equipment, such as fixed-column electric cantilever cranes, mobile folding arm cranes, electric balance cranes, and hoisting cranes, all suffer from the following problems:

[0003] (1) Shaking cannot be reduced during handling. When the items are transferred between conveyor belts, they will vibrate when they land, which is not conducive to the handling of fragile items.

[0004] (2) Moreover, when moving leaky objects, water will drip everywhere and dirty the ground. When moving objects that require high or low temperature preservation, such as popsicles or medicines that require low temperature preservation, outdoor temperatures may cause them to deteriorate or melt.

[0005] (3) The objects being transported need to be disinfected one by one. Manual disinfection is labor-intensive and inefficient. Setting up an automatic disinfection spraying device requires power equipment and electricity, which is costly.

[0006] (4) When the support is raised, the center of gravity also rises, which cannot improve the stability of the support. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a lifting device and method that reduces swaying and prevents damage from vibration upon landing when transporting objects between conveyor belts; prevents water leakage during transport; prevents temperature changes and deterioration; and automatically disinfects the object using the power of the transport process.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a lifting device, comprising a traveling device, a bracket mounted on the traveling device, and a first lifting structure and a second lifting structure mounted on the bracket. The first lifting structure includes a first movable body, a first gear rotatable on the first movable body, a first rack meshing with one side of the first gear, and a second rack meshing with the other side of the first gear. The bottom of the first rack is connected to a suction cup capable of holding the left side of the top surface of an object. The bottom of the second rack is connected to a base plate, and a spring is connected to the base plate. The top of the spring is connected to an L-shaped support plate capable of lifting and supporting the bottom right side of the object. A pull rope is connected to the wheel, and a hook that can hook an object is connected to the bottom of the pull rope. The first moving body is equipped with a first motor that is connected to the first gear and can drive the first gear to rotate. Therefore, when transporting fragile objects between conveyor belts, simply rotating the first gear can stretch and drive the hook to move up and hook the object. At the same time, it can also drive the first rack to move down, the suction cup to pick up the top left side of the object, the second rack to move up, and the L-shaped support plate to compress the spring, while supporting the bottom right side of the object. Only one first gear is needed to achieve three actions, reducing the cost of use, and also providing cushioning during the transportation process, ensuring the stability of transportation, and protecting fragile items.

[0009] The second lifting structure includes a second movable body, a fifth cylinder connected to the bottom of the second movable body, a main body installed at the bottom of the fifth cylinder, a second motor located inside the main body, and a screw rod passing through the main body in a left-right direction. The screw rod is connected to the second motor. The bottom of the main body is connected to the second cylinder, and the bottom of the second cylinder is connected to a top plate. A top cover covering the top of the object is provided around the lower surface of the top plate. A reservoir for storing disinfectant is installed on the lower surface of the top plate, and a spray pipe is connected around the reservoir. The screw rod is threaded to the left side plate of the top plate when it is located on the left side, and threaded to the right side plate when it is located on the right side of the top plate. A limit rod parallel to the screw rod passes through the main body. The left and right side plates have holes for the positioning rod to pass through and move along the positioning rod; the right surface of the left side plate is connected to the left cover, and the left surface of the right side plate is connected to the right cover; the top of the left and right covers forms an opening that mates with the top plate when the left and right covers are pressed together; a cavity for placing an object is formed inside the left and right covers; a bottom cover that can rotate to the bottom of the left and right covers is hinged to the rear side of the top plate; a water tank is formed on the surface of the bottom cover near the bottom of the left and right covers; a sixth cylinder is provided on the top plate to connect to the bottom cover and to push the bottom cover to rotate; an air conditioning device communicating with the cavity is also included. When handling leaking, high-temperature, or low-temperature stored objects, the leaked water can enter the water tank, preventing water from dripping everywhere during handling and maintaining environmental hygiene. Secondly, when the top plate moves down and the top cover covers the object, it will press the liquid storage bladder onto the object, and the spray nozzle will spray disinfectant, realizing automatic disinfection through the movement during handling. No power equipment or electricity is required, making it energy-saving and environmentally friendly. Furthermore, during handling, only a second motor is needed to drive the screw to rotate, which in turn drives the left and right side plates.

[0010] Furthermore, the bracket includes a main shaft, a first rod hinged at one end to the top left side of the main shaft, and a second rod hinged at one end to the top right side of the main shaft. The first movable body is movably connected to the other end of the first rod, and the second movable body is movably connected to the other end of the second rod. One end of the first rod is hinged to the middle left side of the main shaft via a third cylinder, and one end of the second rod is hinged to the middle right side of the main shaft via a fourth cylinder. A lifting cylinder is connected to the bottom of the main shaft, and a rotary motor is connected to the bottom of the lifting cylinder. Both the lifting cylinder and the rotary motor are located inside the base, and the walking device is connected to the bottom of the base. The lower periphery of the main shaft is provided with vertically extending external teeth, and an outer sleeve is provided on the lower part of the main shaft. The inner wall of the outer sleeve is provided with internal teeth. A second gear meshes between the external teeth and the internal teeth. The second gear is rotatably connected to the base, and a support shaft is provided at the bottom of the outer sleeve. In use, the first rod can be flipped by the third cylinder to adjust the height of the first lifting structure; the second rod can be flipped by the fourth cylinder to adjust the height of the second lifting structure, thus improving the flexibility of use; the lifting cylinder can adjust the height of the main shaft, the rotary motor can drive the main shaft to rotate, and the walking device can drive the base to move; in addition, when the main shaft rises, it will also drive the outer sleeve to move down through the second gear, so that the support shaft is supported on the ground, increasing the support area and improving the stability of the support. No additional power is required, the action is smooth, and the use effect is good.

[0011] In addition, a lifting method is provided, including the following steps:

[0012] Step 1: When the walking device moves to the desired position, the lifting cylinder retracts, causing the main shaft and external gear to move downwards, which in turn meshes and drives the second gear to rotate. The outer sleeve moves downwards until the support shaft supports the ground; thus increasing the height while automatically improving the stability of the support.

[0013] Step 2: When an object needs to be transferred between conveyor belts, the object moves from the beginning to the end of the conveyor belt. The third cylinder retracts, causing the first rod to rotate to a horizontal position. The rotary motor drives the main shaft to rotate until the first lifting structure is above the end of the conveyor belt. The first motor drives the first gear to rotate counterclockwise. The pull rope wraps around one side of the first gear, causing the hook to move up and hook the object. The first rack, driven by the first gear, moves the suction cup down to the left side of the top surface of the object. The second rack, driven by the first gear, moves down to the L-shaped support plate to support the lower right side of the object. The spring retracts. Then, the rotary motor rotates and moves the object to the beginning of another conveyor belt, so that the bottom left side of the object is pressed against the beginning of the conveyor belt. A motor drives the first gear to rotate clockwise, causing the hook to move down and release the object. The first gear then drives the first rack to move up, causing the suction cup to detach from the object's surface. The second rack moves down and no longer supports the object's lower surface, allowing the object to move with the conveyor belt. In use, the first motor only needs to drive the first gear to rotate, causing the suction cup to move down and hold the top left side of the object, while the L-shaped support plate holds the bottom right side of the object. The spring is compressed for cushioning, and the hook moves up to hold the object. This allows the device to directly lift objects from the end of the conveyor belt and transport them to the beginning. During this process, the device effectively supports both the bottom and top surfaces of the object, preventing swaying during transport and ensuring stability and secureness. Moreover, only one second motor is needed to perform all three actions, resulting in higher work efficiency.

[0014] Step 3: When moving objects that need to be placed on the ground, require specific temperature storage, or drip water, the third cylinder extends, causing the first rod to rotate until the first lifting structure is away from the ground; the fourth cylinder retracts, causing the second rod to rotate to a horizontal position; then the rotary motor drives the main shaft to rotate until the second lifting device is directly above the object; the sixth cylinder retracts, causing the bottom cover to rotate away from the bottom of the left and right covers; the second motor rotates in one direction, causing the screw to rotate; the left and right side plates move towards the ends of the screw, and the left and right covers move away from each other; the fifth cylinder extends closer to the object; the second cylinder extends... The top plate moves down to press against the top surface of the object in the liquid reservoir. Disinfectant is sprayed from the nozzle to disinfect the object. The top cover covers the top of the object. The second motor rotates in another direction, driving the screw to rotate. The left and right side plates move towards the middle of the screw, and the left and right covers scoop the object into the cavity. The fifth cylinder retracts, moving the object upward. The sixth cylinder extends, causing the bottom cover to flip downward until it covers the bottom of the left and right covers. Water seeping from the object will leak into the water tank through the gap between the left and right covers. The air conditioning unit is activated to adjust the temperature inside the cavity and keep the transported object warm during transport.

[0015] Step 4: The fifth cylinder retracts, lifting the object upwards; the retraction of the lifting cylinder moves the outer casing upwards, at which point the walking device moves to the desired position. The lifting cylinder extends, fixing the support shaft to the ground. Then, the rotary motor drives the second rod to rotate to the placement position; the fifth cylinder extends partially, moving the object downwards. A liquid storage tank is placed next to the placement position. The sixth cylinder retracts, causing the bottom cover to flip upwards, pouring the liquid from the water tank into the storage tank; then the fifth cylinder fully extends, moving the left and right covers downwards to the ground close to the placement position. The second motor rotates in another direction, driving the screw to rotate. The left and right side plates move towards the ends of the screw, moving the left and right covers away from the object. The second cylinder retracts, the top plate moves upwards to release the object, completing the transport process.

[0016] During transport, the water tank collects water dripping from the object. The left cover, right cover, and top plate form a cavity to hold the object, and an air conditioning unit regulates the temperature inside the cavity to prevent the object from spoiling. During transport, the top plate moves down and cooperates with the left and right covers to press the liquid storage bladder against the object's surface, achieving automatic spraying of disinfectant, reducing power costs and simplifying the operation. Then, the sixth cylinder drives the bottom cover to flip, pouring the water into the storage tank for unified collection, preventing the ground from getting dirty. The transport process effectively prevents the object from being stored at a specific temperature, avoiding spoilage, and also prevents water dripping from the object from soiling the ground.

[0017] In summary, the beneficial effects of this invention are as follows:

[0018] (1) Reduce shaking during handling. When transferring between conveyor belts, avoid vibration when falling onto the conveyor belt, which is beneficial for handling fragile items.

[0019] (2) When moving a leaking object, avoid dripping it everywhere and dirtying the ground; when moving an object that needs to be stored at high or low temperatures, avoid causing it to deteriorate or melt, etc.

[0020] (3) Automatic spraying of disinfectant is achieved by utilizing the movement of the transportation process, which reduces power costs and eliminates the need for human intervention, thereby reducing operation steps and improving work efficiency.

[0021] (4) When the support is raised, it can drive the sleeve to move down, thus improving the stability of the support. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a schematic diagram of the second lifting structure in Embodiment 1 of the present invention. Figure 1 ;

[0024] Figure 3This is a schematic diagram of the second lifting structure in Embodiment 1 of the present invention. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the second lifting structure in Embodiment 1 of the present invention. Figure 3 ;

[0026] Figure 5 This is a schematic diagram of the second lifting structure in Embodiment 1 of the present invention. Figure 4 ;

[0027] Figure 6 This is a schematic diagram of the first lifting structure in Embodiment 1 of the present invention. Figure 4 ;

[0028] Among them, object 100; conveyor belt 200; bracket 1, main shaft 11, external toothed thread 11a, first rod 12, third cylinder 12a, second rod 13, fourth cylinder 13a, outer sleeve 14, internal toothed thread 14a, support shaft 141, second gear 15, lifting cylinder 16, rotary motor 17, base 18; walking device 2; first lifting structure 3, first moving body 31, first gear 32, first rack 33, second... Rack 34, base plate 341, spring 342, L-shaped support plate 343, suction cup 35, pull rope 36, hook 361; second lifting structure 4, main body 41, screw 43, second cylinder 44, top plate 4a, liquid reservoir 4a1, nozzle 4a2, left side plate 45, left cover 451, right side plate 46, right cover 461, limit rod 47, bottom cover 48, second moving body 49, fifth cylinder 491; air conditioning unit 5. Detailed Implementation

[0029] 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, and 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.

[0030] Example 1

[0031] like Figure 1-6 As shown, a lifting device includes a traveling device 2, a support 1 mounted on the traveling device 2, and a first lifting structure 3 and a second lifting structure 4 mounted on the support 1.

[0032] Specifically, the first lifting structure 3 includes a first movable body 31, a first gear 32, a first rack 33, and a second rack 34. The first gear 32 is rotatably mounted on the first movable body 31. The first rack 33 meshes with the left side of the first gear 32, and the second rack 34 meshes with the right side of the first gear 32. A suction cup 35 is connected to the bottom of the first rack 34. The suction cup 35 can hold the top left side of the object 100. The suction cup 35 can be manually pressed to hold the object, or a cylinder or suction device can be connected to the suction cup to automatically hold the object 100. The bottom of the second rack 34 is connected to a base plate 341. A spring 342 is connected to the upper surface of plate 341. The top of spring 342 is connected to the bottom surface of L-shaped support plate 343. L-shaped support plate 343 can be lifted and lowered on the second rack 34. L-shaped support plate 343 can support the bottom right side of object 100. The weight of object 100 can press down spring 342. Pull rope 36 is connected to the first gear 32. The bottom of pull rope 36 is connected to hook 361. Hook 361 can hook object 100. Of course, it is best if object 100 has a hook ring for hook installation. The first moving body 31 is equipped with a first motor. The first motor is connected to the first gear 32 and can drive the first gear 32 to rotate. It is especially suitable for lifting and conveying objects between two conveyor belts 200.

[0033] Specifically, the second lifting structure 4 includes a second moving body 49, a fifth cylinder 491, a main body 41, a second motor, and a screw 43. The fifth cylinder 491 is connected to the bottom of the second moving body 49, the main body 41 is installed at the bottom of the fifth cylinder 491, the second motor is located inside the main body 41, and the screw 43 passes through the main body 41 in the left-right direction and is connected to the second motor. The bottom of the main body 41 is connected to the second cylinder 44, and the bottom of the second cylinder 44 is connected to the top plate 4a. The lower surface of the top plate 4a is provided with a top cover that covers the top of the object. A liquid storage bladder 4a1 is installed in the middle of the lower surface of the top plate 4a. The liquid storage bladder 4a1 stores disinfectant. The liquid storage bladder 4a1 is connected to the outside of the spray pipe 4a2. A squeeze pump is installed inside the liquid storage bladder 4a1. Under the squeezing action, the squeeze pump will introduce the disinfectant into the spray pipe 4a2 and spray it out. The screw 43 is threaded to the left side of the top plate 4a and connected to the left side plate 45, and to the right side of the top plate 4a and connected to the right side plate 46. A limiting rod 47 is threaded through the main body 41, and the limiting rod 47 is parallel to the screw 43. The left side plate 45 and the right side plate 46 have holes through which the limiting rod 47 passes and moves. The right surface of the left side plate 45 is connected to the left cover 451, and the left surface of the right side plate 46 is connected to the right cover 461. The tops of the left cover 451 and the right cover 461 form an opening. When the left cover 451 and the right cover 461 are pressed together, the top plate 4a fits the opening, that is, the top plate 4a just presses the opening together, and the left cover 451 and the right cover 461 are pressed together to form a cavity, which is used to place objects. An L-shaped bottom cover 48 is hinged to the rear side of the top plate 4a. The bottom cover 48 can rotate to the bottom of the left cover 451 and the right cover 461. The surface of the bottom cover 48 near the bottom of the left cover 451 and the right cover 461 forms a water-receiving tank. A sixth cylinder 481 is provided on the top plate 4a. The sixth cylinder 481 is connected to the bottom cover 48 and can push the bottom cover 48 to rotate. An air conditioning device 5 is also added. The air conditioning device 5 is connected to the cavity and is installed on the left side plate 45. Of course, it can also be installed on the right side plate 46. The air conditioning device 5 is a pre-existing product.

[0034] The bracket 1 includes a main shaft 11, a first rod 12, and a second rod 13. One end of the first rod 12 is hinged to the top left side of the main shaft 11, and one end of the second rod 13 is hinged to the top right side of the main shaft 11. A first movable body 31 is movably connected to the other end of the first rod 12, and a second movable body 49 is movably connected to the other end of the second rod 13. This movability is existing technology and can be either motor-driven or manually adjustable. Manual adjustment can be achieved by providing slide rails on the first rod 12 and the second rod 13, providing several mounting holes on the first rod 12 and the second movable body 49, and providing sliding grooves that mate with the slide rails. Furthermore, both the first and second movable bodies are provided with bolts that can connect to any of the mounting holes. The lower right side of the first rod 12 is hinged to one end of a third cylinder 12a, and the other end of the third cylinder 12a is hinged to the middle left side of the main shaft 11. The left end of the second rod 13 is hinged to the top of a fourth cylinder 13a, and the bottom of the fourth cylinder 13a is hinged to the middle right side of the main shaft 11.

[0035] The bottom of the main shaft 11 is connected to the lifting cylinder 16, and the bottom of the lifting cylinder 16 is connected to the rotary motor 17. The top center of the base 18 is provided with an installation groove. The lifting cylinder 16 and the rotary motor 17 are both located in the installation groove. The walking device 2 is connected to the bottom of the base 18. The walking device 2 can be made of existing technology, such as a roller with a brake.

[0036] The lower periphery of the main shaft 11 is provided with vertically extending external teeth 11a. The lower part of the main shaft 11 is covered with an outer sleeve 14. The inner wall of the outer sleeve 14 is provided with internal teeth 14a. The external teeth 11a and the internal teeth 14a are meshed and connected to a second gear 15. The second gear 15 is rotatably connected to the base 18, that is, the second gear 15 is rotatably connected to the top of the gear frame. The bottom of the gear frame is installed on the base 18. The bottom of the outer sleeve 14 is circumferentially distributed with support shafts 141. The bottom end of the support shafts 141 extends outward from the base.

[0037] Example 2

[0038] This embodiment is a lifting method of a lifting device according to Embodiment 1, including the following steps:

[0039] Step 1: After the walking device 2 moves to the desired position, it brakes. The lifting cylinder 16 retracts, causing the main shaft 11 and the outer tooth 11a to move downward. The outer tooth 11a engages, causing the second gear 15 to rotate. The second gear 15 engages with the inner tooth 14a, thereby pushing the inner tooth 14a and the outer sleeve 14 downward until the support shaft 141 is supported on the ground, improving the stability of the support.

[0040] Step 2: When an object needs to be transferred between conveyor belts 200, the object 100 moves from the head end to the tail end on the conveyor belt 200. The third cylinder 12a retracts, driving the first rod 12 to rotate to a horizontal state. At this time, it is best to control the third cylinder 13a to extend, driving the second rod to rotate around the top of the main shaft 11 until the second lifting structure 4 is away from the ground. The rotary motor 17 drives the main shaft 11 to rotate until the first lifting structure 3 is located above the tail end of the conveyor belt 200. The first motor drives the first gear 32 to rotate counterclockwise. The pull rope 36 rotates with the first gear 33 and wraps around one side of the first gear 33, i.e., the motor shaft. Alternatively, a winding sleeve can be fitted onto the motor shaft. When the winding sleeve rotates together with the motor shaft and the first gear 33, the pull rope 36 will also wrap around the winding sleeve, thereby moving the hook 361 upward. The hook 361 can be manually hooked onto the hanging ring of the object 100. Driven by the first gear 32, the first rack 33 moves the suction cup 35 downward to the left side of the top surface of the object 100, so that the suction cup adheres to the surface of the object 100. Driven by the first gear 32, the second rack 34 moves downward to the L-shaped support plate 343 to support the lower right side of the object 100. The weight of the object 100 presses down, causing the spring 342 to contract. Then the rotating motor drives the main shaft and the lifting cylinder to rotate together, which in turn drives the first rod 12 and the object 100 to rotate to the head end of another conveyor belt, so that the bottom left end of the object 100 is pressed against the head end of the other conveyor belt. The first motor drives the first gear 32 to rotate clockwise, the hook 361 moves down to release the object 100. It is best to manually remove the hook. The first gear 32 drives the first rack 33 to move up, the suction cup 35 detaches from the surface of the object 100, and the second rack 34 moves down to no longer support the lower surface of the object 100. The object moves with the conveyor belt.

[0041] Step 3: When it is necessary to move an object 100 that is placed on the ground, needs to be stored at a specific temperature, or is dripping water, the third cylinder 12a extends and drives the first rod 12 to rotate so that the first lifting structure 2 is away from the ground.

[0042] Then, the fourth cylinder 13a retracts, causing the second rod 13 to rotate to a horizontal position. The rotary motor 17 drives the main shaft 11 to rotate until the second lifting device 4 is directly above the object 100. The sixth cylinder 481 retracts, causing the bottom cover 48 to rotate away from the bottom of the left cover 451 and the right cover 461. The second motor rotates in one direction, causing the screw 43 to rotate. The left side plate 45 and the right side plate 46 move towards both ends of the screw 43, and the left cover 451 and the right cover 461 move away from each other. The fifth cylinder 491 extends, and the top plate 4a approaches the object. The second cylinder 44 extends, causing the top plate 4a to move down to the liquid storage bladder 4a1 and press against the top surface of the object 100. Disinfectant water is sprayed out from the spray pipe 4a2 to disinfect the object 100. The top cover covers the top of the object 100 to prevent the object from shifting. The second motor rotates in another direction, driving the screw 43 to rotate. The left side plate 45 and the right side plate 46 move closer to the middle of the screw 43. The left cover 451 and the right cover 461 scoop the object 100 into the cavity. Moreover, the top edges of the left cover 451 and the right cover 461 are pressed against the top plate 4a to close the opening. The fifth cylinder 491 retracts, causing the object 100 to move upwards. The sixth cylinder 481 extends, causing the bottom cover 48 to flip downwards until it covers the bottom of the left cover 451 and the right cover 461. Water seeping from the object 100 will leak into the water tank along the gap between the left cover 451 and the right cover 461. Activating the air conditioning device controls the second motor to rotate the screw, further sealing the left cover 451 and the right cover 461, regulating the temperature inside the cavity, and providing heat preservation for the transported object 100.

[0043] Step 4: Control the fifth cylinder 491 to retract, causing the object 100 to rise; the retraction of the lifting cylinder 16 will cause the outer casing 14 to move upward, at which point the walking device 2 moves to the required position, the lifting cylinder 16 extends, and the fixed support shaft 141 is supported on the ground. Then, control the rotary motor to drive the second rod 13 to rotate to the placement position; control the fifth cylinder 491 to extend part of the way, causing the object 100 to move downward, and place the liquid storage tank next to the placement position. Control the sixth cylinder 481 to retract, causing the bottom cover 48 to flip upward, and pour the liquid in the water tank into the liquid storage tank; then control the fifth cylinder 491 to fully extend, causing the left cover 451 and the right cover 461 to move downward to the ground close to the placement position. The second motor rotates in another direction, causing the screw 43 to rotate. The left and right plates move towards the ends of the screw 43, and the left cover 451 and the right cover 461 move away from the object. The second cylinder 44 retracts, and the top plate 4a moves upward to release the object 100, completing the transportation process.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 lifting device, comprising a traveling device (2), a bracket (1) mounted on the traveling device (2), and a first lifting structure (3) and a second lifting structure (4) mounted on the bracket (1), characterized in that: The first lifting structure (3) includes a first movable body (31), a first gear (32) rotatable on the first movable body (31), a first rack (33) meshing with one side of the first gear (32), and a second rack (34) meshing with the other side of the first gear (32). The bottom of the first rack (33) is connected to a suction cup (35) that can hold the left side of the top surface of the object (100). The bottom of the second rack (34) is connected to a base plate (341). A spring (342) is connected to the base plate (341). The top of the spring (342) is connected to an L-shaped support plate (343) that can lift and support the bottom right side of the object (100). A pull rope (36) is connected to the first gear (32). The bottom is connected to a hook (361) that can hook an object (100). The first moving body (31) is provided with a first motor that connects to the first gear (32) and can drive the first gear (32) to rotate. The second lifting structure (4) includes a second moving body (49), a fifth cylinder (491) connected to the bottom of the second moving body (49), a main body (41) installed at the bottom of the fifth cylinder (491), a second motor provided in the main body (41), and a screw (43) passing through the main body (41) in the left and right direction. The screw (43) is connected to the second motor. The bottom of the main body (41) is connected to the second cylinder (44). The bottom of the second cylinder (44) is connected to the top plate (4a). The lower surface is provided with a top cover covering the top of the object. A reservoir (4a1) for storing disinfectant is installed on the lower surface of the top plate (4a). A spray pipe (4a2) is connected to the outside of the reservoir (4a1). The screw (43) is threaded to the left side plate (45) on the left side of the top plate (4a) and to the right side plate (46) on the right side of the top plate (4a). A limiting rod (47) parallel to the screw (43) is provided on the main body (41). The left side plate (45) and the right side plate (46) are provided with holes for the limiting rod (47) to pass through and move along the limiting rod (47). The right surface of the left side plate (45) is connected to the left cover (451), and the left surface of the right side plate (46) is connected to the right cover. (461) The top of the left cover (451) and the right cover (461) forms an opening that engages with the top plate (4a) when the left cover (451) and the right cover (461) are pressed together; a cavity for placing an object is formed inside the left cover (451) and the right cover (461); a bottom cover (48) that can rotate to the bottom of the left cover (451) and the right cover (461) is hinged to the rear side of the top plate (4a), and a water tank is formed on the surface of the bottom cover (48) near the bottom of the left cover (451) and the right cover (461); a sixth cylinder (481) is provided on the top plate (4a) to connect the bottom cover (48) and to push the bottom cover (48) to rotate; an air conditioning device (5) communicating with the cavity is also included.

2. The lifting device according to claim 1, characterized in that: The bracket (1) includes a main shaft (11), a first rod (12) hinged at one end to the top left side of the main shaft (11), and a second rod (13) hinged at one end to the top right side of the main shaft (11). The first moving body (31) is movably connected to the other end of the first rod (12), and the second moving body (49) is movably connected to the other end of the second rod (13). One end of the first rod (12) is hinged to the middle left side of the main shaft (11) via a third cylinder (12a), and one end of the second rod (13) is hinged to the middle right side of the main shaft (11) via a fourth cylinder (13a). A lifting cylinder (16) is connected to the bottom of the main shaft (11). The bottom of the 16) is connected to the rotary motor (17). The lifting cylinder (16) and the rotary motor (17) are both located inside the base (18). The walking device (2) is connected to the bottom of the base (18). The lower periphery of the main shaft (11) is provided with vertically extending external teeth (11a). The lower part of the main shaft (11) is provided with an outer sleeve (14). The inner wall of the outer sleeve (14) is provided with internal teeth (14a). The external teeth (11a) and the internal teeth (14a) are meshed and connected to a second gear (15). The second gear (15) is rotatably connected to the base (18). The bottom of the outer sleeve (14) is provided with a support shaft (141).

3. A lifting method of the lifting device according to claim 2, comprising the following steps: Step 1: When the traveling device (2) moves to the required position, the lifting cylinder (16) extends to drive the main shaft (11) and the external gear (11a) to move upward, thereby meshing and driving the second gear to rotate, and the outer sleeve (14) moves downward until the support shaft (141) is supported on the ground; Step 2: When it is necessary to transfer an object between conveyor belts, the object (100) moves from the head end to the tail end on the conveyor belt (200), the third cylinder (12a) retracts, driving the first rod (12) to rotate to a horizontal state, and the rotary motor (17) drives the main shaft (11) to rotate to the position above the tail end of the first lifting structure (3), and the first motor drives the first gear The wheel (32) rotates counterclockwise, and the pull rope (36) wraps around one side of the first gear (33) along with the first gear (33), causing the hook (361) to move up and hook the object (100). The first rack (33), driven by the first gear (32), moves the suction cup (35) down to the left side of the top surface of the object (100); the second rack (34), driven by the first gear (32), moves up to the L-shaped support plate (343) to support the lower right side of the object (100), and the spring (342) contracts; then the rotating motor rotates and drives the object (100) to the other end of the conveyor belt, so that the bottom left side of the object (100) is close to the end of the conveyor belt. The first motor drives the first gear (32) to rotate clockwise, and the hook (361) moves up and hooks the object (100) to the left side of the conveyor belt. The object (100) is released by moving down, the first gear (32) drives the first rack (33) to move up, the suction cup (35) detaches from the surface of the object (100), the second rack (34) moves down and no longer supports the lower surface of the object (100), and the object moves with the conveyor belt; Step 3: When it is necessary to move an object (100) that is placed on the ground, needs to be stored at a specific temperature, or is an object (100) that will drip water, the third cylinder (12a) extends and drives the first rod (12) to rotate until the first lifting structure (3) is away from the ground; the fourth cylinder (13a) retracts and drives the second rod (13) to rotate to a horizontal state, and then the rotary motor (17) drives the main shaft (11) to rotate until the second lifting device (4) is directly above the object (100), and the sixth cylinder retracts. The retraction drives the bottom cover (48) to rotate away from the bottom of the left cover (451) and the right cover (461). The second motor rotates in one direction to drive the screw to rotate. The left and right plates move towards the two ends of the screw (43). The left cover (451) and the right cover (461) move away from each other. The fifth cylinder (491) extends and approaches the object. The second cylinder (44) extends and drives the top plate (4a) to move down to the liquid storage bladder (4a1) to press the top surface of the object. Disinfectant water is sprayed out from the spray pipe (4a2) to disinfect the object. The top cover covers the top of the object. The second motor rotates in another direction to drive the screw (43) to rotate. The left and right plates move towards the middle of the screw (43). The left cover (451) and the right cover (461) scoop the object into the cavity.The fifth cylinder (491) retracts, causing the object to move upwards. The sixth cylinder extends, causing the bottom cover (48) to flip downwards until it covers the bottom of the left cover (451) and the right cover (461). Water seeping out of the object will leak into the water tank through the gap between the left cover (451) and the right cover (461). The air conditioning device is activated to adjust the temperature inside the cavity and keep the transported object warm during transport. Step 4: The fifth cylinder (491) retracts, causing the object to rise. The lifting cylinder (16) retracts, causing the outer cover (14) to move upwards. At this time, the walking device (2) moves to the required position. The lifting cylinder (16) extends, so that the fixed support shaft (141) is supported on the ground. Then, the rotary motor is controlled to drive the second The rod (13) is rotated to the placement position; the fifth cylinder (491) is extended to move the object (100) down, and a storage tank is placed next to the placement position. The sixth cylinder is retracted to flip the bottom cover (48) upward, pouring the liquid in the water tank into the storage tank. Then the fifth cylinder (491) is fully extended to move the left cover (451) and right cover (461) down to the ground close to the placement position. The second motor rotates in another direction to rotate the screw (43). The left and right plates move towards the ends of the screw (43), and the left cover (451) and right cover (461) move away from the object. The second cylinder (44) retracts, and the top plate (4a) moves up to release the object, completing the handling process.

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