Pipe hoisting hoop assembly and hoisting method

Abstract

The application discloses a pipe hoisting hoop assembly and a hoisting method. The hoop assembly comprises an arc-shaped hoop upper body, both ends of the hoop upper body are hingedly connected with arc-shaped hoop side bodies, and a lifting lug is arranged on the top of the hoop upper body. The hoisting method comprises the following steps: S1, fixing the hoop assembly composed of the hoop upper body and the hoop side bodies on a pipe by using a lifting belt or a rope which passes through a connecting pin shaft; S2, lifting the pipe fixed by the hoop assembly to a working position by a crane through the lifting lug; S3, aligning the adjacent pipes in front and behind by using a guide positioning pipe and a guide positioning groove; and S4, dismounting the hoop assembly by releasing the lifting belt or the rope. The hoop assembly of the application will not be pressed by the pipe after the pipe is positioned, and thus the hoop assembly can be conveniently recycled for the next round of construction after being unlocked, so that the construction efficiency is greatly improved. Meanwhile, the positioning and adjustment of the adjacent two pipes can be realized during the hoisting construction.

Description

TECHNICAL FIELD

[0001] The present application relates to a clamp assembly used in the hoisting process of pipe connection and a hoisting method thereof. BACKGROUND

[0002] At present, in the construction process of pipe hoisting connection, it is necessary to install a lifting lug structure on the pipe so that the crane can hoist it. However, for the pipe used in submarine construction and the glass steel pipe used for water supply and drainage in power plants and other enterprises, it is not possible to set a lifting lug structure on the outer wall of the pipe. Therefore, Chinese patent CN218754569U discloses a "pipe hoisting clamp", which uses a clamp structure to hoist the pipe, so that it is not necessary to add a lifting lug structure on the pipe. However, for submarine construction, after the pipe is hoisted into position in the trench, the fully-enclosing clamp structure used in the above patent will be pressed under the pipe after being unlocked, and cannot be smoothly pulled out, so it cannot be applied to submarine pipe laying conditions. At the same time, during pipe laying construction, it is generally required that the abutting portions of adjacent two sections of pipe are not allowed to be misaligned, especially for some important pipes, the requirement is more stringent. The above conventional operation relies on visual observation for adjustment, which is time-consuming and laborious, especially for submarine pipe construction, which is more difficult. Therefore, there is an urgent need for a technology that can solve the above problems. SUMMARY

[0003] The purpose of the present application is to overcome the above-mentioned shortcomings, and to provide a pipe hoisting clamp assembly and a hoisting method, which clamp assembly will not be pressed by the pipe after the pipe is constructed in position, so that it can be easily recovered after being unlocked for the next round of construction, thereby greatly improving the construction efficiency. At the same time, the positioning and abutting adjustment of adjacent two sections of pipe can be realized during the hoisting construction process.

[0004] The purpose of the present application is achieved as follows:

[0005] A pipe hoisting clamp assembly, comprising an arc-shaped clamp upper body, both ends of the clamp upper body are hingedly connected with arc-shaped clamp side bodies, and a lifting lug is arranged on the top of the clamp upper body.

[0006] Preferably, a draft ear plate is arranged on the side wall of the clamp side body.

[0007] Preferably, a guide positioning pipe is arranged on the outer wall of the clamp side body.

[0008] Preferably, a guide positioning groove is arranged on the outer wall of the clamp side body.

[0009] Preferably, a limiting hole is arranged on the side wall of the clamp upper body.

[0010] Preferably, a connecting pin shaft is arranged on the bottom outer wall of the clamp side body.

[0011] Preferably, the central angle of the arc-shaped structure of the upper body of the hoop is less than or equal to 180°, and the central angle of the arc-shaped structure of the upper body and the side body of the hoop is greater than 180°.

[0012] The pipe hoisting method of the present application is a hoisting method of a pipe hoisting hoop assembly, and the hoisting method comprises the following steps:

[0013] S1, fixing the hoop assembly composed of the upper body and the side body of the hoop on the pipe by using a sling or a rope passing through the connecting pin shaft;

[0014] S2, lifting the pipe fixed by the hoop assembly to the work station by the lifting lug of the crane;

[0015] S3, aligning the adjacent pipes in front and back by using the guide positioning pipe and the guide positioning groove;

[0016] S4, disassembling the hoop assembly by releasing the sling or the rope.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The hoop assembly is designed in the form of a hinged structure with a circular segment structure, so that when the pipe is hoisted to the installation work station, the bottom of the pipe does not press the hoop, thereby facilitating the disassembly of the hoop assembly; at the same time, through the design of the guide positioning pipe and the guide positioning groove, the alignment operation can be easily performed during hoisting, which simplifies the construction efficiency and improves the construction precision and effect. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure diagram of the hoop one in the present application.

[0020] Figure 2 It is a side view of Figure 1 .

[0021] Figure 3 It is a structure diagram of the hoop two in the present application.

[0022] Figure 4 It is a structure diagram of the hoop three in the present application.

[0023] Figure 5 It is a side view of Figure 4 .

[0024] Figure 6 It is an application diagram of single pipe hoisting of the present application.

[0025] Figure 7 It is an application diagram of double pipe hoisting of the present application.

[0026] Among them:

[0027] Hoop upper body 1, hoop side body 2, hinge pin 3, connecting pin 4;

[0028] Lug 1.1, limiting hole 1.2;

[0029] Stretching ear plate 2.1, guide positioning tube 2.2, guide positioning groove 2.3. DETAILED DESCRIPTION

[0030] The present application relates to a kind of pipe hoisting hoop assembly, hoop assembly based on the same idea has three different structural forms:

[0031] Referring to Figures 1-2 , hoop one, including hoop upper body 1, hoop upper body 1 is arc structure, and the two sides of hoop upper body 1 are hinged with hoop side body 2 by hinge pin 3, and hoop side body 2 is also arc structure, above-mentioned hoop upper body 1 and hoop side body 2 constitute a circular segment structure with notch in bottom. The top of the hoop upper body 1 is provided with lug 1.1, for being connected with crane, the side of the hoop upper body 1 is provided with limiting hole 1.2, when using, the limiting hole 1.2 is connected together with the corresponding hole on limiting block to realize positioning. At the same time, the hoop side body 2 is provided with stretching ear plate 2.1, the outer ring surface of the hoop side body 2 is provided with guide positioning tube 2.2.

[0032] Referring to Figure 3 , hoop two, including hoop upper body 1, hoop upper body 1 is arc structure, and the two sides of hoop upper body 1 are hinged with hoop side body 2 by hinge pin 3, and hoop side body 2 is also arc structure, above-mentioned hoop upper body 1 and hoop side body 2 constitute a circular segment structure with notch in bottom. The top of the hoop upper body 1 is provided with lug 1.1, for being connected with crane, the side of the hoop upper body 1 is provided with limiting hole 1.2, when using, the limiting hole 1.2 is connected together with the corresponding hole on limiting block to realize positioning. At the same time, the hoop side body 2 is provided with stretching ear plate 2.1, the outer ring surface of the hoop side body 2 is provided with guide positioning groove 2.3.

[0033] Referring to Figures 4-5 , hoop three, including hoop upper body 1, hoop upper body 1 is arc structure, and the two sides of hoop upper body 1 are hinged with hoop side body 2 by hinge pin 3, and hoop side body 2 is also arc structure, above-mentioned hoop upper body 1 and hoop side body 2 constitute a circular segment structure with notch in bottom. The top of the hoop upper body 1 is provided with lug 1.1, for being connected with crane, the side of the hoop upper body 1 is provided with limiting hole 1.2, when using, the limiting hole 1.2 is connected together with the corresponding hole on limiting block to realize positioning. At the same time, the hoop side body 2 is provided with stretching ear plate 2.1.

[0034] The hoisting method based on the above-mentioned pipe hoisting hoop assembly is:

[0035] Referring to Figure 6 When hoisting a single pipe, a combination of hoop one and hoop two is used, and the steps are as follows:

[0036] S1, the hoop one and the hoop two are respectively sleeved on the two ends of the pipe by using the connecting pin shaft 4 on the hoop one and the hoop two through the sling or the rope, the positions of the hoop one and the hoop two on the outer wall of the pipe are determined by the limiting block, the hoop one and the hoop two are moved towards the limiting block, the limiting hole 1.2 on the hoop one and the hoop two is aligned with the corresponding hole on the limiting block, and then the positioning rod is inserted into the limiting hole 1.2 and the corresponding hole on the limiting block for positioning;

[0037] S2, after the lifting machine is connected with the lifting lug 1.1 provided on the hoop one and the hoop two through the lifting beam and the lifting cable, the pipe is moved to the working position by using the lifting machine;

[0038] S3, the guide positioning pipe 2.2 of the hoop one and the guide positioning groove 2.3 of the hoop two at the two ends of the pipe are aligned with the adjacent pipe;

[0039] S4, the two pipe sections are fixed by pulling the hoist after the adjacent pipe is pulled close between the extension lug plates 2.1 provided on the side of the hoop;

[0040] S5, the previous hoop assembly is disassembled, and the specific operation mode is that the sling or the rope is unfastened, the hoop one and the hoop two can be conveniently disassembled due to the fact that the upper body 1 and the side body 2 of the hoop are hinged through the hinge pin shaft 3, and then the next pipe construction is carried out, the hoop assembly of this time is reserved for alignment in the next construction, and the hoop assembly of the last construction is disassembled after all the constructions are completed.

[0041] Referring to Figure 7 When hoisting a double pipe, a combination of hoop one, hoop two and hoop three is used, and the steps are as follows:

[0042] S1, the hoop one and the hoop three are respectively sleeved on the two ends of the first pipe by using the connecting pin shaft 4 on the hoop one and the hoop three through the sling or the rope, and the hoop three and the hoop two are respectively sleeved on the two ends of the second pipe by using the connecting pin shaft 4 on the hoop three and the hoop two through the sling or the rope;

[0043] Similarly, the positions of the hoop one, the hoop two and the hoop three on the outer wall of the pipe are determined by the limiting block, the hoop one, the hoop two and the hoop three are moved towards the limiting block, the limiting hole 1.2 on the hoop one, the hoop two and the hoop three is aligned with the corresponding hole on the limiting block, and then the positioning rod is inserted into the limiting hole 1.2 and the corresponding hole on the limiting block for positioning;

[0044] S2, after the lifting machine is connected with the lifting lug 1.1 provided on the hoop one, the hoop two and the hoop three through the lifting beam and the lifting cable, the pipe is moved to the working position by using the lifting machine;

[0045] S3, aligning the first pipe with the adjacent pipe in front and behind through the guide positioning pipe 2.2 of the first pipe end's hoop one and the guide positioning groove 2.3 of the second pipe end's hoop two;

[0046] S4, fixing the two pipe sections through the hoist between the first pipe end's hoop one's stretching ear plate 2.1 and the stretching ear plate 2.1 of the hoop of the adjacent pipe in front, and between the two hoops three of the first pipe and the second pipe through the hoist, and between the second pipe's hoop two's stretching ear plate 2.1 and the stretching ear plate 2.1 of the hoop of the adjacent pipe in back through the hoist;

[0047] S5, disassembling the previous hoop assembly and performing the next pipe construction.

[0048] In addition: It should be noted that the above specific embodiments are only an optimized scheme of the patent, and any changes or improvements made by those skilled in the art based on the above concept are within the protection scope of the patent.

Claims

1. A method for hoisting a pipe clamp assembly, characterized in that: The clamp assembly includes: A clamp 1 includes a clamp upper body 1, which has an arc-shaped structure. Both sides of the clamp upper body 1 are hinged to clamp side bodies 1 via hinge pins 1, and clamp side bodies 1 are also arc-shaped structures. The clamp upper body 1 and clamp side bodies 1 together form a cleft structure with a notch at the bottom. The top of the clamp upper body 1 is provided with a lifting lug 1, the side of the clamp upper body 1 is provided with a limiting hole 1, the clamp side body 1 is provided with a stretching lug 1, and the outer ring surface of the clamp side body 1 is provided with a guide positioning tube. The second clamp includes an upper clamp body, which is an arc-shaped structure. Both sides of the upper clamp body are hinged to a side clamp body, which is also an arc-shaped structure. The upper clamp body and the side clamp bodies form a cleft structure with a notch at the bottom. The top of the upper clamp body is provided with a lifting lug, the side of the upper clamp body is provided with a limiting hole, the side clamp body is provided with a stretching lug, and the outer ring surface of the side clamp body is provided with a guide positioning groove. The clamp three includes a clamp upper body three, which has an arc-shaped structure. Both sides of the clamp upper body three are hinged to clamp side bodies three via hinge pins three. The clamp side bodies three also have an arc-shaped structure. The clamp upper body three and clamp side bodies three together form a cleft structure with a notch at the bottom. The top of the clamp upper body three is provided with a lifting lug three. The side of the clamp upper body three is provided with a limiting hole three. The clamp side body three is provided with a stretching lug three. When hoisting two pipes, use one clamp (clamp one), one clamp (clamp two), and two clamps (clamp three) for hoisting; the hoisting method steps are as follows: S1, using a sling or rope to pass through the connecting pins on clamp one and clamp three, clamp one and clamp three are respectively fitted onto the two ends of the first pipe. Using a sling or rope to pass through the connecting pins on clamp three and clamp two, clamp three and clamp two are respectively fitted onto the two ends of the second pipe. Similarly, the positions of clamp one, clamp two, and two clamp three on the outer wall of the pipe are determined by the limiting block. Clamp one, clamp two, and two clamp three are moved toward the limiting block so that the limiting holes on clamp one, clamp two, and two clamp three are aligned with the corresponding holes on the limiting block. Then, the positioning rod is inserted into the limiting holes and the corresponding holes on the limiting block for positioning. S2, after the crane is connected to the lifting lugs (1.1) on clamp one, clamp two and two clamp three through the lifting beam and sling, the crane is used to move the pipeline to the work position; S3, the guide positioning tube of clamp one at one end of the first pipe and the guide positioning groove of clamp two at one end of the second pipe are aligned with the adjacent pipes before and after. S4, the first extension lug of clamp one at one end of the first pipe and the second extension lug of clamp two of the adjacent pipe in front are fixed together by a hand chain hoist; at the same time, the two clamps three of the first pipe and the second pipe are fixed together by a hand chain hoist; the second extension lug of clamp two of the second pipe and the first extension lug of clamp one of the adjacent pipe behind are fixed together by a hand chain hoist. S5, disassemble the previous clamp assembly and proceed with the next double pipe hoisting operation.

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