A cylinder hoisting tool and method

Abstract

The application provides a cylinder hoisting tool and method, the cylinder hoisting tool comprises a lifting lug assembly and at least two arc-shaped plate structures, the arc-shaped plate structure comprises an arc-shaped plate body, a first mounting portion and a second mounting portion, two first mounting portions and a first end of the arc-shaped plate body enclose a first gap, two second mounting portions and a second end of the arc-shaped plate body enclose a second gap; the at least two arc-shaped plate structures are used to fold to form an annular cylinder structure, the first mounting portion on one of the two adjacent arc-shaped plate structures is detachably connected with the second mounting portion on the other, the first gap and the second gap form an anti-disengagement through hole, and the at least one arc-shaped plate structure is connected with the lifting lug assembly. The anti-disengagement through hole formed by the first gap and the second gap is used to be sleeved on a connecting pipe, the arc-shaped plate structures are folded to be sleeved on a cylinder, and the application is suitable for hoisting of the cylinder with the connecting pipe; compared with the scheme of using a hoop, the cylinder can be prevented from moving, and higher safety and stability are achieved.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, and more specifically, to a cylinder hoisting tool and method. Background Technology

[0002] Pressure vessels typically require pre-welded lifting lugs during transportation to facilitate overhead crane lifting operations. However, some cylindrical vessels with nozzles cannot have these lugs welded due to process requirements. In existing technology, a ring-shaped clamp is usually used as a lifting tool, fitted onto the cylindrical vessel, and lifting lugs are then installed on the clamp to achieve the lifting function. However, when the cylindrical vessel tilts, the clamp cannot provide stable support, which may cause the lifting tool to shift or even detach, leading to an accident. Summary of the Invention

[0003] The problem addressed by this invention is how to improve the support and safety of cylinder hoisting tools.

[0004] To address the aforementioned problems, this invention provides a cylindrical lifting tool for lifting cylindrical bodies, comprising a lifting lug assembly and at least two arc-shaped plate structures. Each arc-shaped plate structure includes an arc-shaped plate body, a first mounting portion, and a second mounting portion. The arc-shaped plate body has a first end and a second end at its two ends along its own arc direction. Two first mounting portions are connected to the first end and spaced apart along the central axis of the arc-shaped plate body. Two second mounting portions are connected to the second end and symmetrically arranged with the two first mounting portions at the first end. The two first mounting portions and the first end of the arc-shaped plate body form a first notch, and the two second mounting portions and the second end of the arc-shaped plate body form a second notch. At least two arc-shaped plate structures are used to close together to form an annular cylindrical structure. The first mounting portion on one of two adjacent arc-shaped plate structures is detachably connected to the second mounting portion on the other. The first notch and the second notch form an anti-detachment through hole. At least one arc-shaped plate structure is connected to the lifting lug assembly.

[0005] Optionally, the lug assembly includes lug structures, two of which are connected to one of the arc-shaped plate bodies and are spaced apart along the central axis of the arc-shaped plate body.

[0006] Optionally, at least two of the lifting lug assemblies are disposed on the annular cylindrical structure and are arranged in a ring at equal intervals around the central axis of the annular cylindrical structure.

[0007] Optionally, a first mounting part includes a first connecting plate and a first mounting plate connected to each other, and a second mounting part includes a second connecting plate and a second mounting plate connected to each other. The two first connecting plates are spaced apart on the first end along the central axis of the arc-shaped plate body, and the two second connecting plates are spaced apart on the second end along the central axis of the arc-shaped plate body. The first mounting plate on one of two adjacent arc-shaped plate structures and the second mounting plate on the other are detachably connected.

[0008] Optionally, the first mounting part further includes a first stiffening plate, and the second mounting part further includes a second stiffening plate. The first stiffening plate is connected to the first connecting plate and the first mounting plate, and the second stiffening plate is connected to the second connecting plate and the second mounting plate.

[0009] Optionally, the lifting lug structure includes a first lifting lug plate and a second lifting lug plate, the first lifting lug plate and the second lifting lug plate being connected to the arc-shaped plate body and disposed opposite to each other.

[0010] Optionally, the lifting lug structure further includes an intermediate stiffening plate, which is located between the first lifting lug plate and the second lifting lug plate, and is connected to the first lifting lug plate, the second lifting lug plate and the arc-shaped plate body.

[0011] Optionally, the lifting lug structure further includes a first side stiffener and a second side stiffener. The first side stiffener is located on the side of the first lifting lug plate opposite to the intermediate stiffener and is connected to the first lifting lug plate and the arc-shaped plate body. The second side stiffener is located on the side of the second lifting lug plate opposite to the intermediate stiffener and is connected to the second lifting lug plate and the arc-shaped plate body.

[0012] Optionally, the first mounting plate on one of two adjacent arc-shaped plate bodies is bolted to the second mounting plate on the other.

[0013] The present invention also provides a method for hoisting a cylinder with at least one connecting pipe. The method employs the cylinder hoisting tool described above and includes the following steps: fitting a first notch of an arc-shaped plate structure and a second notch of another arc-shaped plate structure into one of the connecting pipes connected to one end of the cylinder; detachably connecting two first mounting parts of one arc-shaped plate structure to two second mounting parts of the other arc-shaped plate structure until the anti-detachment through holes formed by the first and second notches are fitted into each connecting pipe; connecting the overhead crane's wire rope to the lifting lug assembly of the cylinder hoisting tool to perform the hoisting operation.

[0014] The cylinder hoisting tool of the present invention uses a first mounting part on one of two arc-shaped plate structures and a second mounting part on the other to detachably connect, so that the first and second notches can form anti-detachment through holes for fitting onto the connecting pipe. Then, by closing the arc-shaped plate structures together to form an annular cylinder structure, and detachably connecting adjacent arc-shaped plate structures, the annular cylinder structure can be fitted onto the cylinder. In this way, the cylinder can be hoisted by connecting it to the wire rope of, for example, an overhead crane via a lifting lug assembly. It is particularly suitable for cylinders with connecting pipes. Compared with the traditional method of using clamps, the anti-detachment through holes in the present invention can block the connecting pipe to prevent the cylinder from moving accidentally and avoid the cylinder falling, thus providing higher safety and stability. In addition, through the blocking effect of the anti-detachment through holes, the present invention can also be used for the flipping of cylinders with connecting pipes during the hoisting process. The anti-detachment through holes can block the connecting pipe connected to the cylinder, ensuring the safety and stability of the cylinder during the flipping process.

[0015] The cylinder hoisting method of the present invention has all the beneficial effects of the above-mentioned cylinder hoisting tools, and also has better versatility. It can realize the hoisting of cylinders with right-angled pipes, that is, the end of the pipe away from the cylinder is larger than the other end. By means of this cylinder hoisting method, a first notch or a second notch of an arc plate structure is first fitted onto the pipe, and then a second notch or a first notch of another arc plate structure is fitted onto the pipe. Attached Figure Description

[0016] Figure 1 One of the working conditions of the cylinder hoisting tool provided in the embodiment of the present invention;

[0017] Figure 2 The second schematic diagram shows the working condition of the cylinder hoisting tool provided in the embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 100. Cylinder body; 200. Connecting pipe; 11. Arc-shaped plate body; 111. First notch; 112. Second notch; 12. First mounting part; 121. First connecting plate; 122. First mounting plate; 123. First stiffening plate; 13. Second mounting part; 131. Second connecting plate; 132. Second mounting plate; 133. Second stiffening plate; 21. Lifting lug structure; 211. First lifting lug plate; 212. Second lifting lug plate; 213. Intermediate stiffening plate; 214. First side stiffening plate; 215. Second side stiffening plate. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] It should be noted that in the coordinate system provided herein, the positive direction of the Z-axis represents upward, and the negative direction of the Z-axis represents downward. Furthermore, it should be understood that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in sequences other than those illustrated or described herein.

[0022] This invention provides a cylindrical lifting tool for lifting a cylindrical body 100. The tool includes a lifting lug assembly and at least two arc-shaped plate structures. Each arc-shaped plate structure includes an arc-shaped plate body 11, a first mounting portion 12, and a second mounting portion 13. The arc-shaped plate body 11 has a first end and a second end at its two ends along its own arc direction. Two first mounting portions 12 are connected to the first end and are spaced apart along the central axis of the arc-shaped plate body 11. Two second mounting portions 13 are connected to the second end and are symmetrically arranged with respect to the two first mounting portions 12 at the first end. Two first mounting portions 12 and the first end of the arc-shaped plate body 11 enclose a first notch 111, and two second mounting portions 13 and the second end of the arc-shaped plate body 11 enclose a second notch 112; at least two arc-shaped plate structures are used to close together to form an annular cylindrical structure, and the first mounting portion 12 on one of two adjacent arc-shaped plate structures is detachably connected to the second mounting portion 13 on the other, the first notch 111 and the second notch 112 form an anti-detachment through hole, and at least one arc-shaped plate structure is connected to the lifting lug assembly.

[0023] Specifically, in combination Figure 1 As shown, the lifting lug assembly can use common lifting lugs in the prior art, and no specific restrictions are made here. The arc plate body 11 is an arc plate structure with an inner diameter equal to that of the cylinder 100. Its two ends along its own arc direction (i.e., the circumferential direction of the cylinder 100) are the first end and the second end, respectively. The two first mounting parts 12 are integrally connected to the first end and are spaced apart along the central axis direction of the arc plate body 11 (i.e., the Z-axis direction in the figure). The two second mounting parts 13 are integrally connected to the second end and are also spaced apart along the central axis direction of the arc plate body 11, that is, symmetrically arranged with the two first mounting parts 12 at the first end. The two spaced first mounting parts 12 and the first end of the arc plate body 11 together form a first notch 111 similar to a U-shape. Similarly, the two second mounting parts 13 and the second end of the arc plate body 11 together form a second notch 112.

[0024] For example, combined Figure 1 and Figure 2As shown, the method of using the cylinder hoisting tool is as follows: When there are four arc-shaped plate structures and one connecting pipe 200 for the cylinder 100, two arc-shaped plate structures can be detachably connected through the first mounting part 12 and the second mounting part 13 (a detachable connection can be achieved by means of a locking pin, etc.), and the anti-detachment through holes formed by the first notch 111 and the second notch 112 are fitted onto the connecting pipe 200; then, the remaining arc-shaped plate structures are joined together with the pair of arc-shaped plate structures in the previous step and fitted onto the cylinder 100, and detachably connected to each other through the first mounting part 12 and the second mounting part 13.

[0025] It should be noted that the number of arc-shaped plate structures can be designed according to the number of nozzles 200. For a cylinder 100 with only one or two nozzles 200, at least two arc-shaped plate structures should be provided (i.e., two semi-circular arc-shaped plate structures) to ensure that the anti-detachment through holes are fitted to each nozzle 200; and Figure 1 and Figure 2 The cylinder 100 shown in the figure has four connecting pipes 200, so at least four arc plate structures should be provided (the size of each arc plate structure can also be determined according to the spacing and size of the connecting pipes 200). By analogy, one can imagine the cylinder hoisting tools corresponding to the cylinder 100 with multiple connecting pipes 200.

[0026] The cylinder hoisting tool of the present invention uses a first mounting part 12 on one of two arc-shaped plate structures and a second mounting part 13 on the other to detachably connect them, allowing the first notch 111 and the second notch 112 to form anti-detachment through holes for fitting onto the connecting pipe 200. Then, by closing the arc-shaped plate structures together to form an annular cylinder structure, and detachably connecting adjacent arc-shaped plate structures, the annular cylinder structure can be fitted onto the cylinder 100. Finally, by connecting the lifting lug assembly to, for example, the wire rope of an overhead crane, the cylinder 100 can be hoisted. It is particularly suitable for cylinders 100 with connecting pipes 200; compared with the traditional clamping method, the anti-detachment through hole in this invention can block the connecting pipe 200 to prevent the cylinder 100 from moving accidentally and avoid the accident of the cylinder 100 falling, thus providing higher safety and stability; in addition, through the blocking effect of the anti-detachment through hole, this invention can also be used for the tilting operation of cylinders 100 with connecting pipes 200 during hoisting. The anti-detachment through hole can block the connecting pipe 200 connected to the cylinder 100, ensuring the safety and stability of the cylinder 100 during the tilting process.

[0027] Optionally, the lug assembly includes lug structures 21, two lug structures 21 are connected to one of the arc-shaped plate bodies 11, and are arranged at intervals along the central axis of the arc-shaped plate body 11.

[0028] Specifically, in combination Figure 2As shown, the two lug structures 21 constitute a lug assembly, and the two lug structures 21 are arranged at intervals along the central axis direction of the arc-shaped plate body 11 (i.e., the Z-axis direction in the figure).

[0029] Thus, by setting two lifting lug structures 21, the arc-shaped plate structure facilitates the connection of the crane's wire rope to the two lifting lug structures 21 respectively, thereby achieving the function of stable hoisting.

[0030] Optionally, at least two of the lifting lug assemblies are disposed on the annular cylindrical structure and are arranged in a ring at equal intervals around the central axis of the annular cylindrical structure.

[0031] Specifically, in combination Figure 1 and Figure 2 As shown, four arc-shaped plate structures are joined together to form an annular cylindrical structure. Each lifting lug assembly consists of two lifting lug structures 21 spaced apart along the Z-axis in the figure. A total of four lifting lug assemblies are arranged in a ring at equal intervals around the central axis of the annular cylindrical structure (i.e., the central axis of the arc-shaped plate structure, which is also the Z-axis in the figure). In this way, the overhead crane can be hoisted and connected to the upper and lower ends of the annular cylindrical structure respectively, and the overhead crane connected to the lower end can lift the wire rope to make the cylinder 100 rotate.

[0032] Thus, on the one hand, the design of multiple lifting lugs makes the lifting process more stable and safe, and on the other hand, it also facilitates the operation of tasks that require multiple lifting points, such as the rotation of the cylinder 100.

[0033] Optionally, a first mounting part 12 includes a first connecting plate 121 and a first mounting plate 122 connected to each other, and a second mounting part 13 includes a second connecting plate 131 and a second mounting plate 132 connected to each other. The two first connecting plates 121 are spaced apart on the first end along the central axis of the arc-shaped plate body 11, and the two second connecting plates 131 are spaced apart on the second end along the central axis of the arc-shaped plate body 11. The first mounting plate 122 on one side and the second mounting plate 132 on the other side of two adjacent arc-shaped plate structures are detachably connected.

[0034] Specifically, in combination Figure 1As shown, a first mounting part 12 consists of a first connecting plate 121 and a first mounting plate 122. The first connecting plate 121 is integrally connected to the arc-shaped plate body 11. The first mounting plate 122 is arranged perpendicular to the tangential direction of the cylinder 100 and integrally connected to the first connecting plate 121. The two first mounting parts 12 are spaced apart along the Z-axis in the figure on the first end of the arc-shaped plate body 11 and together with the arc-shaped plate body 11 to form a first notch 111. The first mounting plate 122 has mounting holes so as to be connected to the second mounting plate 132 by fasteners such as locking pins. The arrangement of the second connecting plate 131 and the second mounting plate 132 of the two second mounting parts 13 is similar to that of the first connecting plate 121 and the first mounting plate 122, and will not be described again here.

[0035] Thus, the two arc-shaped plate structures can be easily detachably connected by fasteners such as locking pins, using the first mounting plate 122 and the second mounting plate 132.

[0036] Optionally, the first mounting part 12 further includes a first stiffener 123, and the second mounting part 13 further includes a second stiffener 133. The first stiffener 123 is connected to the first connecting plate 121 and the first mounting plate 122, and the second stiffener 133 is connected to the second connecting plate 131 and the second mounting plate 132.

[0037] Specifically, in combination Figure 1 As shown, three first stiffening plates 123 are provided between the first connecting plate 121 and the first mounting plate 122, and three second stiffening plates 133 are also provided between the second connecting plate 131 and the second mounting plate 132. In this way, the connection between the first mounting plate 122 and the first connecting plate 121 can be strengthened.

[0038] Optionally, the lifting lug structure 21 includes a first lifting lug plate 211 and a second lifting lug plate 212, the first lifting lug plate 211 and the second lifting lug plate 212 being connected to the arc-shaped plate body 11 and arranged opposite to each other.

[0039] Specifically, in combination Figure 2 As shown, the first lifting lug plate 211 and the second lifting lug plate 212 are arranged opposite to each other, and both are integrally connected to the arc-shaped plate body 11. The first lifting lug plate 211 and the second lifting lug plate 212 are both arranged perpendicular to the tangential direction of the cylinder 100.

[0040] Thus, the first lifting lug plate 211 and the second lifting lug plate 212 are arranged opposite to each other, which is more conducive to improving the stability of the overhead crane hoisting connection compared to the structure of a single lifting lug plate.

[0041] Optionally, the lifting lug structure 21 further includes an intermediate stiffening plate 213, which is located between the first lifting lug plate 211 and the second lifting lug plate 212, and is connected to the first lifting lug plate 211, the second lifting lug plate 212 and the arc-shaped plate body 11.

[0042] Specifically, in combination Figure 2 As shown, an intermediate stiffening plate 213 is provided between the first lifting lug plate 211 and the second lifting lug plate 212, and the intermediate stiffening plate 213 is connected to the first lifting lug plate 211, the second lifting lug plate 212 and the arc-shaped plate body 11. In this way, the stability of the lifting lug structure 21 can be improved.

[0043] Optionally, the lifting lug structure 21 further includes a first side stiffener 214 and a second side stiffener 215. The first side stiffener 214 is located on the side of the first lifting lug plate 211 opposite to the intermediate stiffener 213 and is connected to the first lifting lug plate 211 and the arc-shaped plate body 11. The second side stiffener 215 is located on the side of the second lifting lug plate 212 opposite to the intermediate stiffener 213 and is connected to the second lifting lug plate 212 and the arc-shaped plate body 11. Optionally, the first mounting plate 122 on one of two adjacent arc-shaped plate bodies 11 is bolted to the second mounting plate 132 on the other.

[0044] Thus, by setting the first side stiffener 214, the second side stiffener 215 and the middle stiffener 213, the stability of the lifting lug structure 21 can be further improved.

[0045] Optionally, the first mounting plate 122 on one of two adjacent arc-shaped plate bodies 11 is bolted to the second mounting plate 132 on the other.

[0046] Thus, by connecting the first mounting plate 122 and the second mounting plate 132 with bolts, the closing force of the arc-shaped plate structure can be adjusted by the tightness of the bolts.

[0047] The present invention also provides a method for hoisting a cylinder 100 connected to at least one pipe 200, using the cylinder hoisting tool described above, and comprising the following steps:

[0048] The first notch 111 of one of the two arc-shaped plate structures in the cylinder hoisting tool and the second notch 112 of the other are fitted onto a connecting pipe 200 and connected to one end of the cylinder 100. The first mounting part 12 of one of the two arc-shaped plate structures and the second mounting part 13 of the other are detachably connected. The first notch 111 and the second notch 112 form an anti-detachment through hole fitted onto the connecting pipe 200. The previous step is repeated until each connecting pipe 200 is fitted with an anti-detachment through hole. The wire rope of the overhead crane is connected to the lifting lug assembly of the cylinder hoisting tool to carry out the hoisting operation.

[0049] Specifically, in combination Figure 2 As shown, firstly, the first notch 111 on one of the two arc-shaped plate structures and the second notch 112 on the other are fitted onto the root of the pipe 200 (i.e., the end where the pipe 200 is connected to the cylinder 100). Then, the aligned first mounting part 12 and the second mounting part 13 are detachably connected by bolts to form an anti-detachment through hole fitted onto the pipe 200. If there are multiple pipes 200 on the cylinder 100, the above steps are repeated until each pipe 200 is fitted with an anti-detachment through hole. The wire rope of the overhead crane is connected to multiple lifting lug structures 21 for hoisting and hoisting operations are carried out.

[0050] The cylinder hoisting method of the present invention has all the beneficial effects of the above-mentioned cylinder hoisting tools, and also has better versatility. It can realize the hoisting of, for example, a cylinder 100 with a right-angled connecting pipe 200, that is, the end of the connecting pipe 200 away from the cylinder 100 is larger than the other end. By means of this cylinder hoisting method, a first notch 111 or a second notch 112 of an arc-shaped plate structure is first fitted onto the connecting pipe 200, and then a second notch 112 or a first notch 111 of another arc-shaped plate structure is fitted onto the connecting pipe 200.

[0051] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A cylinder hoisting tool for hoisting a cylinder (100) connected with at least one connecting pipe (200), characterized in that The ear assembly and at least two arc-shaped plate structures are included, the arc-shaped plate structure includes an arc-shaped plate body (11), a first mounting part (12) and a second mounting part (13), the arc-shaped plate body (11) is respectively the first end and the second end along the two ends of its own arc direction, two first mounting parts (12) are connected to the first end, and are arranged in the central axis direction of the arc-shaped plate body (11) interval, two second mounting parts (13) are connected to the second end, and the two first mounting parts (12) of the first end are symmetrically arranged with the two first mounting parts (12), and the two second mounting parts (13) are symmetrically arranged with the two first mounting parts (12) of the first end, and the two first mounting parts (12) and the first end of the arc-shaped plate body (11) are enclosed to form a first gap (111), and the two second mounting parts (13) and the second end of the arc-shaped plate body (11) are enclosed to form a second gap (112); At least two arc-shaped plate structures are used to fold to form a ring-shaped cylinder structure, the first mounting part (12) on one of the two adjacent arc-shaped plate structures is detachably connected with the second mounting part (13) on the other, the first gap (111) and the second gap (112) form a anti-off hole, and at least one arc-shaped plate structure is connected with the ear assembly; One first mounting part (12) includes a first connecting plate (121) and a first mounting plate (122) connected with each other, one second mounting part (13) includes a second connecting plate (131) and a second mounting plate (132) connected with each other, two first connecting plates (121) are arranged on the first end in the central axis direction of the arc-shaped plate body (11), two second connecting plates (131) are arranged on the second end in the central axis direction of the arc-shaped plate body (11), and the first mounting plate (122) on one of the two adjacent arc-shaped plate structures is detachably connected with the second mounting plate (132) on the other; The first mounting part (12) further includes a first rib plate (123), and the second mounting part (13) further includes a second rib plate (133), the first rib plate (123) is connected with the first connecting plate (121) and the first mounting plate (122), and the second rib plate (133) is connected with the second connecting plate (131) and the second mounting plate (132); The first mounting plate (122) on one of the two adjacent arc-shaped plate bodies (11) is bolted with the second mounting plate (132) on the other.

2. The barrel hoisting tool of claim 1, wherein, The ear assembly includes an ear structure (21), two ear structures (21) are connected to an arc-shaped plate body (11), and are arranged in the central axis direction of the arc-shaped plate body (11) interval.

3. The barrel hoisting tool of claim 2, wherein, At least two ear assemblies are arranged on the ring-shaped cylinder structure and are arranged in a ring shape around the central axis of the ring-shaped cylinder structure.

4. The barrel hoisting tool of claim 2, wherein, The lug structure (21) comprises a first lug plate (211) and a second lug plate (212), which are connected to the arc-shaped plate body (11) and oppositely arranged.

5. The barrel hoisting tool of claim 4, wherein, The lug structure (21) further comprises an intermediate rib plate (213) between the first lug plate (211) and the second lug plate (212), which is connected to the first lug plate (211), the second lug plate (212) and the arc-shaped plate body (11).

6. The barrel hoisting tool of claim 5, wherein, The lug structure (21) further comprises a first side rib plate (214) and a second side rib plate (215), the first side rib plate (214) is located on the side of the first lug plate (211) away from the intermediate rib plate (213), and is connected to the first lug plate (211) and the arc-shaped plate body (11), the second side rib plate (215) is located on the side of the second lug plate (212) away from the intermediate rib plate (213), and is connected to the second lug plate (212) and the arc-shaped plate body (11).

7. A method of hoisting a barrel, characterized by, The barrel hoisting tool comprises the following steps: The first notch (111) of one of the two arc-shaped plate structures and the second notch (112) of the other arc-shaped plate structure are sleeved on one end of the connecting pipe (200) connected to the barrel (100), and the first mounting portion (12) of one of the two arc-shaped plate structures is detachably connected to the second mounting portion (13) of the other arc-shaped plate structure, the first notch (111) and the second notch (112) form a anti-disengagement through hole sleeved on the connecting pipe (200); Repeat the previous step until each connecting pipe (200) is sleeved with an anti-disengagement through hole; The steel wire rope of the crown block is connected to the lug assembly of the barrel hoisting tool, and the hoisting operation is carried out.

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