Lifting method, lifting ring assembly, lifting appliance assembly and containerized unit frame

Abstract

The invention belongs to the field of lifting methods and equipment, and particularly relates to a lifting method, a lifting ring assembly, a lifting appliance assembly and a containerized unit frame. In order to hoist an object through a narrow gap, the invention provides a hoisting method, which comprises the following steps of: 1, keeping a hoisting ring connected to the object in a horizontal state; 2, a sling is used for lowering a lifting block matched with the lifting ring in shape, and the lifting block downwards penetrates through an inner hole of the lifting ring; 3, the hanging ring inclines upwards to change the projection of the inner hole in the horizontal plane, so that the projection part of the hanging block in the horizontal plane is located outside the projection of the inner hole in the horizontal plane; and 4, the lifting block is lifted upwards so that the lifting block can hook the lifting ring and drive the lifting ring and the object to move upwards. When the lifting ring is in a horizontal state, the lifting block penetrates through the inner hole of the lifting ring downwards, then the lifting ring inclines upwards, and finally, the lifting block is lifted upwards and hooks the lifting ring, so that an object can be driven to move upwards, and the lifting operation in a narrow gap is realized.

Description

Technical Field

[0001] This invention belongs to the field of lifting methods and equipment, and in particular relates to a lifting method, a lifting ring assembly, a lifting tool assembly, and a modular unit frame. Background Technology

[0002] like Figure 1 As shown, in the original technology, after the containerized units 1 are stacked, they are fixed to the marine floor 3 by rigging 2. Each containerized unit 1 has a lifting ring base on both sides, and lifting rings 4-1 are rotatably mounted on the lifting ring base. There is a 500 mm working passage between two adjacent stacks of containerized units 1, allowing workers to enter the working passage to hook the hook onto the lifting rings 4-1, thus enabling the lifting operation of the containerized units 1. The containerized unit 1 consists of a containerized unit frame and the cargo loaded within the containerized unit frame.

[0003] However, in the aforementioned original technology, the distance between the two stacks of containerized units 1 is too far, resulting in a low storage density of containerized units 1, which is not conducive to storing more containerized units 1 on the marine floor 3.

[0004] To facilitate understanding by those skilled in the art, the improved technology is described below. It should be noted that the following content does not belong to the prior art.

[0005] To solve the above problems, such as Figure 2 As shown, in the improved technology, two stacks of containerized units 1 are placed together, and the adjacent stacks of containerized units 1 are separated by a spacer block 5. At the same time, the two stacks of containerized units 1 are tied together to the marine floor 3 using a rigging sling 2. The thickness of the spacer block 5 is generally 100 mm, so as to reduce the 500 mm working channel to a 100 mm isolation gap, thereby increasing the storage density of the containerized units 1.

[0006] However, in the improved technology described above, because the two stacks of containerized units 1 are very close together, workers cannot enter between them, preventing the hook from engaging with the lifting ring 4-1 and thus hindering the lifting of the containerized unit 1. Therefore, there is an urgent need for a lifting method and corresponding supporting structure compatible with the improved technology. Summary of the Invention

[0007] The purpose of this invention is to provide a lifting method to solve the technical problem in the prior art that objects cannot be lifted through narrow gaps.

[0008] Another objective of this invention is to provide a lifting ring assembly that solves the technical problem in the prior art that objects cannot be lifted through narrow gaps when used in conjunction with a lifting block.

[0009] The present invention also aims to provide a lifting device assembly to solve the technical problem that objects cannot be lifted through narrow gaps in the prior art.

[0010] Another objective of this invention is to provide a modular unit frame that solves the technical problem in the prior art that modular units cannot be lifted through narrow gaps when used in conjunction with lifting blocks.

[0011] To achieve the above objectives, the technical solution of the lifting method provided by this invention is as follows: A lifting method includes the following steps: Step 1: Keep the hanging rings attached to the object horizontal; Step 2: Use slings to lower a block that matches the shape of the ring, and let the block pass downwards through the inner hole of the ring; Step 3: Tilt the lifting ring upward to change the projection of the inner hole in the horizontal plane, so that the projection of the lifting block in the horizontal plane is outside the projection of the inner hole in the horizontal plane; Step 4: Lift the lifting block so that it hooks onto the lifting ring and moves the ring and the object upwards.

[0012] Furthermore, a limiting component is connected to the object. In step 1, the limiting component is used to limit the lifting ring to a horizontal state. In step 3, the operating lever is used to push the lifting ring upward so that the lifting ring tilts upward.

[0013] Furthermore, a rotating seat is rotatably connected to the object, the lifting ring is rotatably mounted on the rotating seat, the limiting member is fixedly connected to the rotating seat, one end of the tension spring is connected to the object, and the other end is connected to the rotating seat; in step 1, the tension spring applies tension to the rotating seat so that the limiting member is held in the limiting position corresponding to the horizontal lifting ring; in step 4, the lifting block hooks the lifting ring and drives the rotating seat to rotate to improve the force on the object, and at the same time, the tension spring is stretched to store the reset energy for returning the limiting member to the limiting position.

[0014] Furthermore, for lifting rings located in gaps inaccessible to personnel, steps 1 to 4 are performed to hook the lifting block onto the lifting ring; for lifting rings located in areas accessible to personnel, the hook is directly hooked onto the lifting ring.

[0015] Furthermore, the limiting component includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring. In step 1, the spring clamps the lifting ring to keep the lifting ring in a horizontal state. In step 3, after the lifting ring is pushed out of the spring using the operating lever, the operating lever is retracted. Under the action of the lifting ring's own weight, the side of the lifting ring away from the lifting ring base rests on the spring to keep the lifting ring in an upward tilted state.

[0016] The beneficial effects of the lifting method provided by the present invention are as follows: by lowering the lifting block and changing the projected area of ​​the inner hole of the lifting ring in the horizontal plane, the lifting block can hook the lifting ring when the lifting block is lifted. It is not necessary for personnel to enter the gap where the lifting ring is located. Only the lifting block needs to be lifted and lowered and the lifting ring needs to be operated outside the gap. Thus, objects can be lifted through narrow gaps, which is conducive to arranging objects more compactly.

[0017] To achieve the above objectives, the technical solution for the lifting ring assembly provided by this invention is as follows: A lifting ring assembly includes a lifting ring base for mounting on an object and a lifting ring rotatably mounted on the lifting ring base. It also includes a limiting member fixedly connected to the lifting ring base. The limiting member limits the lower limit position of the lifting ring's downward movement during use, restricting the lifting ring to the lower limit position before a lifting block, whose shape is adapted to the lifting ring, passes downward through the inner hole of the lifting ring. When the lifting ring is in the lower limit position, it is in a horizontal state. The rotational stroke of the lifting ring also includes a hooking position in an upward tilting state, for hooking the lifting block onto the lifting ring when the lifting block is lifted.

[0018] Furthermore, the limiting element includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring, so as to limit the lower limit position of the lifting ring by clamping and fixing; when the lifting ring is in the hook position, the side of the lifting ring away from the lifting ring base rests on the spring.

[0019] Furthermore, the limiting element includes a stop surface for upper and lower stops with the lifting ring at its lower limit position, so as to limit the lower limit position of the lifting ring by means of stop limiting.

[0020] Furthermore, it also includes a tension spring and a tension spring base for fixed installation on the object. The lifting ring base is rotatably mounted on the object to improve the stress on the object during lifting. The two ends of the tension spring are connected to the lifting ring base and the tension spring base respectively to provide a restoring force to reset the lifting ring base and the limiting member when the lifting ring drives the lifting ring base to rotate upward, thereby keeping the limiting member in a position corresponding to the horizontal lifting ring when the lifting block and the lifting ring are separated.

[0021] The beneficial effects of the lifting ring assembly provided by this invention are as follows: When used in conjunction with the lifting block, the lifting ring is limited to a horizontal position by the limiting member, making it easier for the lifting block to pass downward through the inner hole of the lifting ring. When the lifting ring is switched to the hooking position, the lifting block can be hooked onto the lifting ring by lifting it upward, thereby enabling the lifting of objects through narrow gaps, which is beneficial for arranging objects more compactly.

[0022] To achieve the above objectives, the technical solution for the lifting device assembly provided by this invention is as follows: A lifting device assembly includes a lifting ring assembly and a hook for connection to a sling. The lifting ring assembly includes a lifting ring base for mounting on an object, a lifting ring rotatably mounted on the lifting ring base, and a limiting member fixedly connected to the lifting ring base. The limiting member limits the lower limit position of the lifting ring during use, thereby restricting the lifting ring to the lower limit position before a lifting block adapted to the shape of the lifting ring passes downward through the inner hole of the lifting ring. When the lifting ring is in the lower limit position, the lifting ring is in a horizontal state. The rotational stroke of the lifting ring also includes a hooking position in an upward tilting state, for hooking the lifting block onto the lifting ring when the lifting block is lifted. The hook includes a lifting block adapted to the shape of the lifting ring.

[0023] Furthermore, the limiting element includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring, so as to limit the lower limit position of the lifting ring by clamping and fixing; when the lifting ring is in the hook position, the side of the lifting ring away from the lifting ring base rests on the spring.

[0024] Furthermore, the limiting element includes a stop surface for upper and lower stops with the lifting ring at its lower limit position, so as to limit the lower limit position of the lifting ring by means of stop limiting.

[0025] Furthermore, it also includes a tension spring and a tension spring base for fixed installation on the object. The lifting ring base is rotatably mounted on the object to improve the stress on the object during lifting. The two ends of the tension spring are connected to the lifting ring base and the tension spring base respectively to provide a restoring force to reset the lifting ring base and the limiting member when the lifting ring drives the lifting ring base to rotate upward, thereby keeping the limiting member in a position corresponding to the horizontal lifting ring when the lifting block and the lifting ring are separated.

[0026] The beneficial effects of the lifting device assembly provided by this invention are as follows: the lifting ring is limited to a horizontal position by the limiting member, which facilitates the lifting block to pass downward through the inner hole of the lifting ring. When the lifting ring is switched to the hooking position, the lifting block can be hooked onto the lifting ring by lifting it upward, thereby enabling the lifting of objects through narrow gaps and facilitating the arrangement of objects more compactly.

[0027] To achieve the above objectives, the technical solution of the modular unit frame provided by this invention is as follows: A modular unit frame includes a frame body and a lifting ring assembly. The lifting ring assembly includes a lifting ring base for mounting on the frame body and a lifting ring rotatably mounted on the lifting ring base. The lifting ring assembly also includes a limiting member fixedly connected to the lifting ring base. The limiting member is used to limit the lower limit position of the lifting ring's downward movement, so as to restrict the lifting ring to the lower limit position before the lifting block, which is adapted to the shape of the lifting ring, passes downward through the inner hole of the lifting ring. When the lifting ring is in the lower limit position, the lifting ring is in a horizontal state. The rotation stroke of the lifting ring also includes a hooking station in an upward tilting state, so as to make the lifting block hook the lifting ring when the lifting block is lifted.

[0028] Furthermore, the limiting element includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring, so as to limit the lower limit position of the lifting ring by clamping and fixing; when the lifting ring is in the hook position, the side of the lifting ring away from the lifting ring base rests on the spring.

[0029] Furthermore, the limiting element includes a stop surface for upper and lower stops with the lifting ring at its lower limit position, so as to limit the lower limit position of the lifting ring by means of stop limiting.

[0030] Furthermore, it also includes a tension spring and a tension spring base fixedly mounted on the frame body. The lifting ring base is rotatably mounted on the frame body to improve the stress on the frame body during lifting. The two ends of the tension spring are connected to the lifting ring base and the tension spring base respectively to provide a restoring force to reset the lifting ring base and the limiting member when the lifting ring drives the lifting ring base to rotate upward, thereby keeping the limiting member in a position corresponding to the horizontal lifting ring when the lifting block and the lifting ring are separated.

[0031] The beneficial effects of the modular unit frame provided by this invention are as follows: the lifting ring is limited to a horizontal position by the limiting member, which facilitates the lifting block to pass downward through the inner hole of the lifting ring. When the lifting ring is switched to the hooking position, the lifting block can be hooked onto the lifting ring by lifting it upward, thereby enabling the modular unit to be lifted through narrow gaps, which is beneficial for arranging the modular units more compactly. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the storage of containerized units in the original technology; Figure 2 This is a schematic diagram of the storage of the containerized unit in the improved technology; Figure 3 This is a structural diagram of the sling and hook; Figure 4 for Figure 3 Enlarged view of the structure at the hook; Figure 5 This is a front view of the lifting ring assembly of the containerized unit; Figure 6 This is a side view of the lifting ring assembly of the containerized unit; Figure 7 This is a top view of the lifting ring assembly of the modular unit; Figure 8 This is a side view of the lifting ring assembly; Figure 9 A schematic diagram of the structure for switching the lifting ring from a horizontal to an inclined position; Figure 10 This is a structural diagram showing the process from when the hook begins to lower to when it begins to lift.

[0033] Explanation of reference numerals in the attached figures: 1. Containerized unit; 1-1. Frame body; 2. Securing rigging; 3. Marine floor; 4. Lifting ring assembly; 4-1. Lifting ring; 4-2. Lifting ring base; 4-3. Spring; 4-4. Tension spring; 4-5. Tension spring base; 5. Spacer block; 6. Sling; 7. Hook; 7-1. Lifting block; 7-2. Connecting lug; 8. Pin; 9. Locking pin. Detailed Implementation

[0034] To address the problems in the background art, the core inventive concept of this invention is as follows: lifting is achieved by using a lifting ring and a lifting block with matching shapes. When the lifting ring is in a horizontal state, the lifting block is made to pass downward through the inner hole of the lifting ring. Then, the lifting ring is tilted upward. Finally, the lifting block is lifted up. The lifting block can no longer pass through the lifting ring, so it can drive the object to move upward to achieve the lifting operation.

[0035] The present invention will be further described in detail below with reference to the embodiments.

[0036] An embodiment of the lifting method provided by this invention: like Figures 2-10 As shown, the lifting method includes the following steps: Step 1: Keep the hanging ring 4-1 attached to the object horizontal; Step 2: Using the sling 6, lower the lifting block 7-1, which is adapted to the shape of the lifting ring 4-1, and let the lifting block 7-1 pass downward through the inner hole of the lifting ring 4-1. The sling 6 can be a rope or a chain. Step 3: Push the lifting ring 4-1 upward using the operating lever to tilt the lifting ring 4-1 upward, thereby changing the projection of the inner hole in the horizontal plane, and thus making the projection of the lifting block 7-1 in the horizontal plane outside the projection of the inner hole in the horizontal plane; Step 4: Lift up the lifting block 7-1 so that the lifting block 7-1 hooks the lifting ring 4-1 and drives the lifting ring 4-1 and the object to move upward.

[0037] Figure 10 The document specifically illustrates steps 1 through 3 above, and through... Figure 10 It can be seen that in step 4, lifting block 7-1 can cause lifting block 7-1 to drive lifting ring 4-1 and the object to move upward, so as to lift the object.

[0038] Preferably, a limiting component is connected to the object. In step 1, the limiting component is used to limit the lifting ring 4-1 to a horizontal state so that the lifting block 7-1 can pass downward through the lifting ring 4-1 in step 2, which is convenient for operation.

[0039] Of course, in step 1, the operating lever can also be used to keep the lifting ring 4-1 horizontal; or, a rope can be tied to the lifting ring 4-1, and the worker can hold the rope to control whether the lifting ring 4-1 is horizontal or tilted upward.

[0040] like Figure 2 As shown, the lifting method of the present invention will be introduced using the lifting containerized unit 1 as an example.

[0041] When two stacks of containerized units 1 are placed close together, an isolation block 5 is provided between the two stacks of containerized units 1 to create a gap (generally 100 mm) between the two stacks of containerized units 1 that personnel cannot enter, thereby ensuring that the lifting ring 4-1 in the gap can be switched to a horizontal state and the lifting block 7-1 can be lowered into the gap.

[0042] like Figure 10 As shown, first, keep the lifting ring 4-1 in the gap horizontal; then, use the sling 6 to let the lifting block 7-1 pass downward through the lifting ring 4-1; then, use the operating lever to push the lifting ring 4-1 upward; finally, use the sling 6 to lift the lifting block 7-1 so that the lifting block 7-1 hooks onto the lifting ring 4-1.

[0043] It should be noted that each of the four corners of the containerized unit 1 is equipped with lifting rings 4-1. The lifting device includes four slings 6, one end of which is connected to a hook 7, and the other end converges inward so that when a crane is used to lift the lifting device, it can simultaneously lift all four slings 6. After the four hooks 7 simultaneously hook the four lifting rings 4-1, the containerized unit 1 can be lifted by a crane.

[0044] It should be noted that before lifting the two stacks of containerized units 1, the entire structure formed by the two stacks of containerized units 1 has a large space on both sides, typically a 500mm working passage, to facilitate workers securing the ends of the rigging 2 to the ship's floor 3; after lifting one stack of containerized units 1, the remaining stack of containerized units 1 also has a large space on both sides. Therefore, as Figure 2 As shown, it is only necessary to ensure that one side of the containerization unit 1 corresponding to the isolation block 5 has a lifting ring 4-1 that is horizontal and allows the lifting block 7-1 to pass through. For the remaining lifting rings 4-1 of the containerization unit 1, the existing method can be used to hook the lifting hook 7 onto the lifting ring 4-1. Those skilled in the art can determine which lifting rings 4-1 need to be horizontal and allow the lifting block 7-1 to pass through as needed, which will not be elaborated here.

[0045] Preferably, steps 1 to 4 are used to lift the lifting ring 4-1 located in a gap inaccessible to personnel, to ensure that the object can be lifted; for the lifting ring 4-1 located in an area accessible to personnel (e.g., a 500 mm work passage), as in the prior art, the worker holds the hook 7 to directly hook the lifting ring 4-1, which is convenient to operate. The hook 7 and lifting ring 4-1 in this case can be existing hook 7 and existing lifting ring 4-1, preferably the same hook 7 and lifting ring 4-1 used in steps 1 to 4, and no distinction is needed during use.

[0046] In one embodiment, the lifting ring 4-1 is mounted on the lifting ring base 4-2. The lifting ring base 4-2 can be fixedly connected to the frame body 1-1 of the modular unit 1 by means of welding, flange connection or other methods. During lifting, the hook 7 drives the lifting ring 4-1 to rotate in order to better match the sling 6 and the crane, thereby optimizing the stress situation of the frame body 1-1.

[0047] Preferably, a rotating seat (i.e., a lifting ring base 4-2) is rotatably connected to the frame body 1-1. The lifting ring 4-1 is rotatably mounted on the rotating seat. The limiting member is fixedly connected to the rotating seat. The tension spring base 4-5 is fixedly mounted on the frame body 1-1. One end of the tension spring 4-4 ​​is connected to the tension spring base 4-5 (or can be directly welded to the frame body 1-1), and the other end is connected to the rotating seat. In step 1, the tension spring 4-4 ​​applies tension to the rotating seat so that the limiting member is held in the limiting position corresponding to the horizontal lifting ring 4-1. In step 4, the lifting block 7-1 hooks the lifting ring 4-1 and drives the rotating seat to rotate, thereby improving the force on the frame body 1-1. At the same time, the tension spring 4-4 ​​is stretched to store the reset energy for the limiting member to return to the limiting position. In this design, one of the frame body 1-1 and the lifting ring base 4-2 is provided with a hinge shaft, and the other is provided with a hinge hole that mates with the hinge shaft, so as to realize the rotatable connection between the frame body 1-1 and the lifting ring base 4-2; or, both the frame body 1-1 and the lifting ring base 4-2 are provided with pivot holes, and the pivot passes through the pivot holes on the frame body 1-1 and the lifting ring base 4-2 and is fixedly connected to the frame body 1-1 by welding or other methods. Of course, other methods of rotating assembly of the two components in the prior art can also be used to rotatably assemble the frame body 1-1 and the lifting ring base 4-2 together.

[0048] During lifting, the hook 7 drives the lifting ring 4-1 to rotate, and the lifting ring 4-1 drives the lifting ring base 4-2 to rotate. This adds a rotational degree of freedom corresponding to the lifting ring base 4-2, allowing for better matching of the sling 6 and the crane, and optimizing the stress distribution on the frame body 1-1. After the hook 7 separates from the lifting ring 4-1, under the tension of the tension spring 4-4, the lifting ring base 4-2 and the limiting component return to their initial state, thus confining the lifting ring 4-1 to a horizontal position.

[0049] In one embodiment, such as Figures 8-9As shown, the limiting component includes a spring plate 4-3 adapted to the shape of the lifting ring 4-1 and used to clamp the lifting ring 4-1. The spring plate 4-3 has an arc-shaped clamping portion adapted to the shape of the lifting ring 4-1 to limit the lower limit position of the lifting ring 4-1 by clamping and fixing. In step 1, the lifting ring 4-1 can be pressed down by the operating lever to restore the lifting ring 4-1 to a horizontal state. In step 3, the lifting ring 4-1 is driven to rotate upward by the operating lever to separate the lifting ring 4-1 from the spring plate 4-3. Then, the operating lever is separated from the lifting ring 4-1. Under the action of the lifting ring 4-1's own weight, the side of the lifting ring 4-1 away from the lifting ring base 4-2 rests on the spring plate 4-3 to keep the lifting ring 4-1 in an upward tilted state. In step 4, before the lifting block 7-1 contacts the lifting ring 4-1, the spring plate 4-3 keeps the lifting ring 4-1 in an upward tilted state.

[0050] In another embodiment, it is also possible to Figure 8 The arc-shaped clamping portion and the portion above it of the spring 4-3 shown are omitted to form a new limiting member. This limiting member may not be elastic. In this case, the limiting member includes a stop surface for upper and lower stops with the horizontally positioned lifting ring 4-1, so as to limit the lower limit position of the lifting ring 4-1 by stopping. In step 1, the lifting ring 4-1 automatically maintains a horizontal state under its own weight; in step 4, before the lifting block 7-1 contacts the lifting ring 4-1, the operating lever is used to keep the lifting ring 4-1 in an upward tilted state.

[0051] Of course, the lifting method in this invention can also be used to lift other objects besides the containerized unit 1, as long as these objects are equipped with lifting rings 4-1.

[0052] It should be noted that, when assembling the two stacks of containerized units 1 according to... Figure 2 When arranged adjacent to each other as shown, the containerized unit 1 can be lifted using an existing hook that does not have a self-locking function. After placing the containerized unit 1 in the designated position, the hook is lowered, and the hook naturally separates from the lifting ring 4-1. Therefore, how to lift at least two stacks of containerized units 1 that are already arranged adjacent to each other is the core problem that the lifting method of this invention needs to solve, rather than how to arrange at least two stacks of containerized units 1 adjacent to each other. Of course, the lifting method of this invention can also be used to arrange at least two stacks of containerized units 1 adjacent to each other. After the containerized unit 1 is placed in the designated position, the hook 7 is lowered and separated from the lifting ring 4-1. Then, the lifting ring 4-1 is switched to a horizontal state. Finally, the hook 7 is lifted so that the hook 7 passes upward through the inner hole of the lifting ring 4-1.

[0053] An embodiment of the lifting ring assembly provided by the present invention: The lifting ring assembly 4 in this invention is used to be installed on an object to cooperate with the hook 7 with the lifting block 7-1 to realize the lifting method in the embodiment of the lifting method of this invention.

[0054] like Figures 2-10 As shown, the lifting ring assembly 4 includes a lifting ring base 4-2 for mounting on an object, a lifting ring 4-1 rotatably mounted on the lifting ring base 4-2, and a limiting member fixedly connected to the lifting ring base 4-2. The limiting member is used to limit the lower limit position of the lifting ring 4-1 during use, so as to restrict the lifting ring 4-1 to the lower limit position before the lifting block 7-1, which is adapted to the shape of the lifting ring 4-1, passes downward through the inner hole of the lifting ring 4-1. When the lifting ring 4-1 is in the lower limit position, the lifting ring 4-1 is in a horizontal state. The rotation stroke of the lifting ring 4-1 also includes a hooking position in an upward tilting state, so as to make the lifting block 7-1 hook the lifting ring 4-1 when the lifting block 7-1 is lifted. The inner hole of the lifting ring 4-1 can be an elliptical hole, and the lifting block 7-1 is an elliptical shape adapted to the lifting ring 4-1, and the size of the lifting block 7-1 is 1~2 mm smaller than the elliptical hole. Of course, the inner hole of the lifting ring 4-1 can also be a round hole, a square hole, or an irregularly shaped hole.

[0055] The limiting component includes a spring plate 4-3 that is adapted to the shape of the lifting ring 4-1 and is used to clamp the lifting ring 4-1, so as to limit the lower limit position of the lifting ring 4-1 by clamping and fixing. When the lifting ring 4-1 is in the hooking position, the side of the lifting ring 4-1 away from the lifting ring base 4-2 rests on the spring plate 4-3; or, the limiting component includes a stop surface for stopping the lifting ring 4-1 at the lower limit position, so as to limit the lower limit position of the lifting ring 4-1 by stopping and limiting.

[0056] Preferably, the lifting ring assembly 4 further includes a tension spring 4-4 ​​and a tension spring base 4-5 for fixed installation on the object. The lifting ring base 4-2 is rotatably mounted on the object to improve the force distribution on the object during lifting. The two ends of the tension spring 4-4 ​​are connected to the lifting ring base 4-2 and the tension spring base 4-5 respectively, to provide a restoring force to reset the lifting ring base 4-2 and the limiting member when the lifting ring 4-1 drives the lifting ring base 4-2 to rotate upward, thereby keeping the limiting member in a limiting position corresponding to the horizontal state of the lifting ring 4-1 when the lifting block 7-1 and the lifting ring 4-1 are separated. The two ends of the tension spring 4-4 ​​can be hooked into corresponding through holes on the lifting ring base 4-2 and the tension spring base 4-5 respectively, or the two ends of the tension spring 4-4 ​​can be welded to the lifting ring base 4-2 and the tension spring base 4-5 respectively.

[0057] Embodiments of the lifting device assembly provided by the present invention: The lifting device assembly of the present invention includes a lifting ring assembly 4 and a hook 7 for connection with a sling 6. The lifting ring assembly 4 can be any of the embodiments of the lifting ring assembly 4 of the present invention, so as to realize the lifting method in the embodiments of the lifting method of the present invention when the hook 7 is connected to the sling 6. The structure of the lifting ring assembly 4 will not be described in detail.

[0058] like Figures 3-4 As shown, the hook 7 includes a connecting lug 7-2 and a lifting block 7-1. The connecting lug 7-2 is hinged to the sling 6 via a pin 8 and a locking pin 9. The lifting block 7-1 can naturally maintain a horizontal state under its own weight, making it easy for the lifting block 7-1 to pass through the inner hole of the lifting ring 4-1.

[0059] An embodiment of the modular unit frame provided by this invention: like Figures 2-10 As shown, the containerized unit frame includes a frame body 1-1 for loading goods and a lifting ring assembly 4 installed on the frame body 1-1. The lifting ring assembly 4 is any one of the lifting ring assembly 4 embodiments of the present invention, so as to cooperate with the hook 7 with the lifting block 7-1 to realize the lifting method in the lifting method embodiment of the present invention.

[0060] Depending on the arrangement of the containerized units 1 in a stacked and adjacent manner, any one of the embodiments of the lifting ring assembly 4 of the present invention can be selectively provided on at least one side of the containerized unit 1. Preferably, any one of the embodiments of the lifting ring assembly 4 of the present invention is provided on both sides of the containerized unit 1, so that the influence of the arrangement position of the containerized unit 1 on the position of the lifting ring assembly 4 does not need to be considered when arranging the containerized unit 1.

[0061] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are 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 without creative effort, or make equivalent substitutions for some of the technical features, or organically combine different embodiments to create the embodiments shown in the accompanying drawings. Of course, those skilled in the art can also create other embodiments not shown in the accompanying drawings. 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 method, characterized in that, Includes the following steps: Step 1: Keep the hanging rings attached to the object horizontal; Step 2: Use slings to lower a block that matches the shape of the ring, and let the block pass downwards through the inner hole of the ring; Step 3: Tilt the lifting ring upward to change the projection of the inner hole in the horizontal plane, so that the projection of the lifting block in the horizontal plane is outside the projection of the inner hole in the horizontal plane; Step 4: Lift the lifting block so that it hooks onto the lifting ring and moves the ring and the object upwards.

2. The lifting method as described in claim 1, characterized in that, A limiting component is connected to the object. In step 1, the limiting component is used to limit the lifting ring to a horizontal state. In step 3, the operating rod is used to push the lifting ring upward so that the lifting ring tilts upward.

3. The lifting method as described in claim 2, characterized in that, A rotating seat is rotatably connected to the object, and a lifting ring is rotatably mounted on the rotating seat. A limiting member is fixedly connected to the rotating seat. One end of a tension spring is connected to the object, and the other end is connected to the rotating seat. In step 1, the tension spring applies tension to the rotating seat to keep the limiting member in a limiting position corresponding to the horizontal lifting ring. In step 4, the lifting block hooks the lifting ring and drives the rotating seat to rotate to improve the force on the object. At the same time, the tension spring is stretched to store the reset energy for the limiting member to return to the limiting position.

4. The lifting method according to any one of claims 1 to 3, characterized in that, For lifting rings located in gaps inaccessible to personnel, perform steps 1 to 4 to hook the lifting block onto the lifting ring. For lifting rings located in areas accessible to personnel, directly hook the lifting hook onto the lifting ring.

5. The lifting method as described in claim 2 or 3, characterized in that, The limiting component includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring. In step 1, the spring clamps the lifting ring to keep the lifting ring in a horizontal state. In step 3, after the lifting ring is pushed out of the spring using the operating rod, the operating rod is retracted. Under the action of the lifting ring's own weight, the side of the lifting ring away from the lifting ring base rests on the spring to keep the lifting ring in an upward tilted state.

6. A lifting ring assembly, comprising a lifting ring base for mounting on an object and a lifting ring rotatably mounted on the lifting ring base, characterized in that, It also includes a limiting member fixedly connected to the lifting ring base. The limiting member is used to limit the lower limit position of the lifting ring's downward movement during use, so as to restrict the lifting ring to the lower limit position before the lifting block, which is adapted to the shape of the lifting ring, passes downward through the inner hole of the lifting ring. When the lifting ring is in the lower limit position, the lifting ring is in a horizontal state. The rotation stroke of the lifting ring also includes a hooking position in an upward tilting state, so as to make the lifting block hook the lifting ring when the lifting block is lifted.

7. The lifting ring assembly as claimed in claim 6, characterized in that, The limiting component includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring to limit the lower limit position of the lifting ring by clamping and fixing; when the lifting ring is in the hook position, the side of the lifting ring away from the lifting ring base rests on the spring.

8. The lifting ring assembly as claimed in claim 6, characterized in that, The limiting element includes a stop surface for upper and lower stops with the lifting ring at its lower limit position, so as to limit the lower limit position of the lifting ring by means of stop limiting.

9. The lifting ring assembly as described in any one of claims 6 to 8, characterized in that, It also includes a tension spring and a tension spring base for fixing it to the object. The lifting ring base is rotatably mounted on the object to improve the stress on the object during lifting. The two ends of the tension spring are connected to the lifting ring base and the tension spring base respectively to provide a restoring force to reset the lifting ring base and the limiting member when the lifting ring drives the lifting ring base to rotate upward, thereby keeping the limiting member in a position corresponding to the horizontal lifting ring when the lifting block and the lifting ring are separated.

10. A lifting device assembly, comprising a lifting ring assembly and a hook for connection to a sling, characterized in that, The lifting ring assembly is the lifting ring assembly according to any one of claims 6 to 9, and the hook includes a lifting block adapted to the shape of the lifting ring.

11. A modular unit frame, comprising a frame body and a lifting ring assembly, the lifting ring assembly comprising a lifting ring base for mounting on the frame body and a lifting ring rotatably mounted on the lifting ring base, characterized in that, The lifting ring assembly also includes a limiting member fixedly connected to the lifting ring base. The limiting member is used to limit the lower limit position of the lifting ring's downward movement, so as to restrict the lifting ring to the lower limit position before the lifting block, which is adapted to the shape of the lifting ring, passes downward through the inner hole of the lifting ring. When the lifting ring is in the lower limit position, the lifting ring is in a horizontal state. The rotation stroke of the lifting ring also includes a hooking position in an upward tilting state, so as to make the lifting block hook the lifting ring when the lifting block is lifted.

12. The modular unit frame as described in claim 11, characterized in that, The limiting component includes a spring that is adapted to the shape of the lifting ring and is used to clamp the lifting ring to limit the lower limit position of the lifting ring by clamping and fixing; when the lifting ring is in the hook position, the side of the lifting ring away from the lifting ring base rests on the spring.

13. The modular unit frame as described in claim 11, characterized in that, The limiting element includes a stop surface for upper and lower stops with the lifting ring at its lower limit position, so as to limit the lower limit position of the lifting ring by means of stop limiting.

14. The modular unit frame as described in any one of claims 11 to 13, characterized in that, It also includes a tension spring and a tension spring base fixedly mounted on the frame body. The lifting ring base is rotatably mounted on the frame body to improve the stress on the frame body during lifting. The two ends of the tension spring are connected to the lifting ring base and the tension spring base respectively to provide a restoring force to reset the lifting ring base and the limiting member when the lifting ring drives the lifting ring base to rotate upward, thereby keeping the limiting member in a position corresponding to the horizontal lifting ring when the lifting block and the lifting ring are separated.

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