Lifting connecting device for fixing end part of pipe

Abstract

The utility model discloses a hoisting connecting device for fixing the end part of a pipe, which relates to the technical field of hoisting transportation, aims to solve the problem that the pipe is easy to damage in the prior art, and comprises an end cover, a rotating rod is rotatably connected to the middle of the end cover, an adjusting sleeve is in threaded connection with the rotating rod, and a first connecting rod is hinged to the end cover; a first connecting rod is hinged to the end cover, a second connecting rod is hinged to the adjusting sleeve, ejector blocks are hinged to the tail ends of the first connecting rod and the second connecting rod, multiple sets of first connecting rods, multiple sets of second connecting rods and multiple sets of ejector blocks are arranged and surround the circumference of the rotating rod in an array mode, a rotating disc is rotationally connected to the outer edge of the end cover, and a suspension clasp is arranged on the side wall of the rotating disc. According to the tubular product hoisting device, the fixing effect is achieved, the structure is simple, the fixing effect is good, when the tubular product is hoisted, a vertical mode is adopted, the tubular product is stressed in the axial direction in the hoisting process, the tubular product is evenly stressed through the fact that the rotatable hoisting buckle is aligned with the hoisting cable, deformation and damage are avoided, and the tubular product quality is guaranteed when the tubular product is hoisted.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting and transportation, in particular to a lifting connection device for fixing the end of a pipe. Background Art

[0002] After the production of large-diameter pipes is completed, due to their heavy weight, lifting equipment and special hoists are required for turnover transportation. Existing pipe hoists are mostly shear-type structures, which use the weight of the pipe itself to achieve the effect of lifting and clamping, and lift the pipe horizontally for transportation. However, this technical solution has the following defects: on the one hand, the contact area between the hoist and the pipe is small, and the pressure at the contact position is large. During the transportation process, the hoist is easy to damage the pipe and affect the quality of the pipe. On the other hand, when lifting the pipe horizontally, the middle section of the pipe is affected by gravity, which can easily cause deformation or even damage to the pipe.

[0003] Therefore, the present application provides a lifting connection device for fixing the end of a pipe to meet the demand. Utility Model Content

[0004] The purpose of the present application is to provide a lifting connection device for fixing the end of a pipe, which can fix the end of the pipe, realize vertical lifting, and avoid damage to the pipe during the lifting process.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a lifting connection device for fixing the end of a pipe, comprising an end cover, a rotating rod is rotatably connected to the middle part of the end cover, a threaded section is provided at one end of the rotating rod, an adjusting sleeve is threadedly connected to the threaded section, a first connecting rod is hinged on the end cover, a second connecting rod is hinged on the adjusting sleeve, the first connecting rod and the second connecting rod are hinged at their ends, and a top block is connected at the hinge of the first connecting rod and the second connecting rod, the first connecting rod, the second connecting rod and the top block are all in multiple groups and are arranged around the circumference of the rotating rod, and the position of the adjusting sleeve can be adjusted to move the top block outward and push against the inner wall of the pipe, and the self-locking property of the threaded connection is used to fix the top block to the pipe;

[0006] A rotating handle is provided at the other end of the rotating rod, and the rotating handle and the threaded section are respectively located on two sides of the end cover, so as to facilitate the operation of the rotating rod;

[0007] The outer edge of the end cover is rotatably connected with a turntable, and the side wall of the turntable is provided with hanging buckles, and the hanging buckles are multiple groups and evenly distributed, so as to facilitate the connection of the hanger.

[0008] Preferably, one end of the rotating rod provided with the threaded section is provided with a plug to limit the adjustment sleeve.

[0009] Preferably, a short shaft is provided on the top block, and the short shaft is hinged to the first connecting rod and the second connecting rod. An anti-slip pad is provided on the side of the top block opposite to the rotating rod to increase friction and improve the stability of fixation.

[0010] Preferably, a protective pad is provided on the side of the end cover facing the threaded section, and the protective pad is made of a deformable material and can protect the end of the pipe.

[0011] Preferably, a groove is provided on the side of the end cover facing the turning handle, the turning handle is located in the groove, and the distance between the end of the turning handle and the bottom surface of the groove is smaller than the depth of the groove, so that the side of the end cover where the turning handle is located is flat as a whole, and the turning handle can be protected during transportation.

[0012] Preferably, an insert block is provided at the end of the rotating rod, and a slot is provided on the central axis of the rotating handle. The slot matches the size of the insert block and is slidably connected. The rotating handle and the rotating rod adopt a plug-in structure, and the rotating handle can be removed after operation to avoid misoperation.

[0013] Preferably, the turntable is hinged to the hanging buckle, and a limit sleeve is provided on the side wall of the turntable. The limit sleeves have multiple groups and are evenly distributed. The limit sleeves are horizontally provided with through holes. The hanging buckle is a U-shaped part, and a through hole is provided on one end of the hanging buckle, and a screw hole is provided on the other end. An assembly bolt is slidably connected in the through hole, and the assembly bolt passes through the through hole and is threadedly connected to the screw hole. The hanging buckle can be removed so that the sling can be passed through the hanging buckle.

[0014] Preferably, an easy-twist block is provided on the bolt cap of the assembly bolt, and the easy-twist block is in a straight line shape, which is convenient for loading and unloading the hanging buckle without tools, thereby improving the convenience of loading and unloading.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] The utility model uses a rotating rod to drive the adjustment sleeve to move, which drives the hinged connecting rod combination to move, so that the top block moves outward and presses against the inner wall of the pipe to achieve a fixing effect. The utility model has a simple structure and a good fixing effect. A vertical method is adopted when lifting the pipe, so that the pipe is subjected to axial force during the lifting process. The rotatable lifting buckle is aligned with the lifting rope to make the pipe subjected to uniform force, avoid deformation and damage, and ensure the quality of the pipe during lifting.

[0017] The utility model uses an easily disassembled assembly bolt to install the connecting hook, and the hook can be removed when needed to meet the installation and use needs of different hangers. The easy-twist block design is used, and no tools are required during operation, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the use effect of the utility model;

[0021] Figure 3 It is a schematic diagram of the rotating rod structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the top block structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the hanging buckle structure of the utility model.

[0024] In the figure: 1. end cover; 2. rotating rod; 3. first connecting rod; 4. second connecting rod; 5. top block; 6. rotating disk; 7. hanging buckle; 8. assembly bolt; 10. groove; 11. rotating handle; 12. protective pad; 20. plug; 21. adjusting sleeve; 22. insert block; 50. anti-slip pad; 60. limiting sleeve; 80. easy-tightening block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Reference Figure 1-5 A lifting connection device for fixing the end of a pipe is shown, comprising an end cap 1, a rotating rod 2 is rotatably connected to the middle of the end cap 1, one end of the rotating rod 2 is provided with a threaded section, an adjusting sleeve 21 is threadedly connected to the threaded section, a first connecting rod 3 is hinged on the end cap 1, a second connecting rod 4 is hinged on the adjusting sleeve 21, the first connecting rod 3 and the second connecting rod 4 are hinged at their ends, and a top block 5 is connected at the hinge of the first connecting rod 3 and the second connecting rod 4, and the first connecting rod 3, the second connecting rod 4, and the top block 5 are all provided in three groups and are arranged in a circle around the rotating rod 2;

[0027] The other end of the rotating rod 2 is provided with a rotating handle 11, and the rotating handle 11 and the threaded section are respectively located on both sides of the end cover 1;

[0028] The outer edge of the end cover 1 is rotatably connected to a turntable 6 , and four groups of hanging buckles 7 are evenly arranged on the side wall of the turntable 6 .

[0029] As an implementation method in this embodiment, in order to prevent the adjustment sleeve 21 from being separated from the rotating rod 2, as shown in FIG. Figure 1 , Figure 3 As shown, one end of the rotating rod 2 having the threaded section is provided with a plug 20 .

[0030] As an implementation method in this embodiment, in order to enhance the friction between the top block 5 and the pipe, as Figure 1 , Figure 4 As shown, a short shaft is provided on the top block 5 , and the short shaft is hinged to the first connecting rod 3 and the second connecting rod 4 . An anti-slip pad 50 is provided on the side of the top block 5 opposite to the rotating rod 2 .

[0031] As an implementation method in this embodiment, in order to protect the end surface of the pipe, Figure 1 As shown, a protective pad 12 is provided on the side of the end cover 1 facing the threaded section, and the protective pad 12 is made of a deformable material.

[0032] As an implementation method in this embodiment, in order to protect the handle 11 from being damaged by external forces during the lifting process, Figure 2 As shown, a groove 10 is provided on one side of the end cover 1 facing the handle 11 , the handle 11 is located in the groove 10 , and the distance between the end of the handle 11 and the bottom surface of the groove 10 is less than the depth of the groove 10 .

[0033] As an implementation method in this embodiment, in order to facilitate the disassembly of the handle 11 and prevent misoperation, Figure 3 As shown, the end of the rotating rod 2 is inserted and matched with the slot on the central axis of the rotating handle 11 through the insert block 22.

[0034] As an implementation method in this embodiment, in order to facilitate the removal of the lifting buckle 7 and improve the convenience of connecting the lifting rope during lifting, Figure 2 , Figure 5 As shown, the turntable 6 is hinged with the hanging buckle 7, and a limit sleeve 60 is provided on the side wall of the turntable 6. The limit sleeve 60 has multiple groups and is evenly distributed. A through hole is horizontally provided on the limit sleeve 60. The hanging buckle 7 is a U-shaped part. A through hole is provided on the end of one side of the hanging buckle 7, and a screw hole is provided on the end of the other side. An assembly bolt 8 is slidably connected in the through hole, and the assembly bolt 8 passes through the through hole and is threadedly connected to the screw hole.

[0035] As an implementation method in this embodiment, in order to improve the installation convenience of the assembly bolt 8, as shown in FIG. Figure 5 As shown, a straight-shaped easy-twist block 80 is provided on the bolt cap of the assembly bolt 8 .

[0036] Working principle of the utility model: when lifting the pipe, first send one end of the rotating rod 2 with the threaded section into the pipe, cover the end of the pipe with the end cover 1, and then use the rotating handle 11 to rotate the rotating rod 2, drive the threaded section to rotate, drive the adjusting sleeve 21 to move in the direction of the end cover 1, drive the first connecting rod 3 and the second connecting rod 4 to rotate, and the top block 5 moves outward accordingly. When the top block 5 hits the inner wall of the pipe, the position of the end cover 1 and the pipe is fixed. Use the same method to block and fix the other end of the pipe, and then use a sling to pass through the hook 7 at one end and connect it to the hook 7 at the other end. Use multiple sets of slings to pass through and connect each Assemble the lifting buckle 7, and connect the free ends of all the lifting cables to the lifting equipment. During lifting, as the lifting cable is pulled up, the end through which the lifting cable passes is first lifted up by force. After the pipe is erected, the end connected to the lifting cable also begins to be stressed, and the pipe is lifted up from below. During this process, the anti-skid pad 50 enhances the friction between the top block 5 and the inner wall of the pipe to prevent the top block 5 from loosening. The protective pad 12 at the bottom protects the bottom end of the pipe. In addition, during the lifting process, under the action of the lifting cable tension, the turntables 6 at the upper and lower ends will rotate to align the lifting buckles 7 at the upper and lower ends. The pipe remains vertical and is evenly stressed during the lifting process. During this process, the axial force is applied without deformation or damage. The anti-skid pad 50 prevents sliding between the top block 5 and the pipe, thereby improving stability during lifting. When landing after lifting, the turning handle 11 and the turning rod 2 are in the groove 10 to avoid hitting the ground and causing damage. If the end of the sling has a hook that cannot pass through the hanging buckle 7, the assembly bolt 8 can be removed to separate the hanging buckle 7 from the limiting sleeve 60, and the sling can be directly placed in the hanging buckle 7. The assembly bolt 8 is passed through the through hole at the end of the hanging buckle 7 and the through hole on the limiting sleeve 60, and screwed into the screw hole to connect the hanging buckle 7 and the limiting sleeve 60. The easy-tightening block 80 can be used to directly Twist the assembly bolt 8, which is very convenient; when the turning handle 11 and the turning rod 2 are connected by plugging, the turning handle 11 can be removed after operating the turning rod 2 to avoid touching the turning handle 11 again to cause the contact between the top block 5 and the inner wall of the pipe to loosen. When operating the turning rod 2, the turning handle 11 is inserted into the plug block 22, which is easy to operate; when disassembling after lifting is completed, the turning handle 11 is rotated in the opposite direction to drive the turning rod 2 to reverse and drive the adjusting sleeve 21 to move toward the plug 20 to separate the top block 5 from the inner wall of the pipe, so that the end cover 1 can be separated from the end face of the pipe. In this process, the plug 20 limits the adjusting sleeve 21 to prevent the adjusting sleeve 21 from separating from the turning rod 2.

[0037] The mechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0038] Components not described in detail herein are prior art.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A lifting connection device for fixing the end of a pipe, characterized in that: The invention comprises an end cover (1), wherein a rotating rod (2) is rotatably connected to the middle part of the end cover (1), a threaded section is provided at one end of the rotating rod (2), an adjusting sleeve (21) is threadedly connected to the threaded section, a first connecting rod (3) is hingedly connected to the end cover (1), a second connecting rod (4) is hingedly connected to the adjusting sleeve (21), the first connecting rod (3) and the second connecting rod (4) are hingedly connected at their ends, and a top block (5) is connected at the hinged joint between the first connecting rod (3) and the second connecting rod (4), and the first connecting rod (3), the second connecting rod (4) and the top block (5) are provided in multiple groups and arranged in a circular array around the rotating rod (2); The other end of the rotating rod (2) is provided with a rotating handle (11), and the rotating handle (11) and the threaded section are respectively located on two sides of the end cover (1); The outer edge of the end cover (1) is rotatably connected to a turntable (6), and a side wall of the turntable (6) is provided with hanging buckles (7), and the hanging buckles (7) are provided in multiple groups and are evenly distributed.

2. A lifting connection device for fixing the end of a pipe according to claim 1, characterized in that: One end of the rotating rod (2) provided with the threaded section is provided with a plug (20).

3. A lifting connection device for fixing the end of a pipe according to claim 1, characterized in that: The top block (5) is provided with a short shaft, the short shaft being hinged to the first connecting rod (3) and the second connecting rod (4), and an anti-slip pad (50) is provided on a side of the top block (5) opposite to the rotating rod (2).

4. A lifting connection device for fixing the end of a pipe according to claim 1, characterized in that: A protective pad (12) is provided on the side of the end cover (1) facing the threaded section, and the protective pad (12) is made of a deformable material.

5. A lifting connection device for fixing the end of a pipe according to claim 1, characterized in that: A groove (10) is provided on a side of the end cover (1) facing the rotating handle (11); the rotating handle (11) is located in the groove (10); and the distance between the end of the rotating handle (11) and the bottom surface of the groove (10) is less than the depth of the groove (10).

6. A lifting connection device for fixing the end of a pipe according to claim 5, characterized in that: An insert block (22) is provided at the end of the rotating rod (2), and a slot is provided on the central axis of the rotating handle (11), wherein the slot matches the size of the insert block (22) and is slidably connected.

7. A lifting connection device for fixing the end of a pipe according to claim 1, characterized in that: The rotating disk (6) is hingedly connected to the hanging buckle (7). A limiting sleeve (60) is provided on the side wall of the rotating disk (6). The limiting sleeves (60) are provided in multiple groups and are evenly distributed. A through hole is transversely provided on the limiting sleeve (60). The hanging buckle (7) is a U-shaped member. A through hole is provided on one end of the hanging buckle (7) and a screw hole is provided on the other end. An assembly bolt (8) is slidably connected in the through hole. The assembly bolt (8) passes through the through hole and is threadedly connected to the screw hole.

8. A lifting connection device for fixing the end of a pipe according to claim 7, characterized in that: An easy-twist block (80) is provided on the bolt cap of the assembly bolt (8), and the easy-twist block (80) is in a straight line shape.

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