Pipeline opening butt joint auxiliary chain block installation equipment

Abstract

Pipeline opening butt joint auxiliary chain block installation equipment comprises correction supporting mechanisms which are supported on socket connection pipelines on the two sides respectively, each correction supporting mechanism comprises a pair of correction supporting assemblies which are supported at the two ends of the corresponding pipeline respectively, and each correction supporting assembly comprises a first clamp and a second clamp which are arranged in a hinged mode; the inner side wall of the first clamp and the inner side wall of the second clamp are fixedly connected with a plurality of supporting ball parts matched with one another respectively, each supporting ball part comprises a pair of fixedly connected lug seats, and an abutting ball abutting against the pipeline is rotationally connected between the lug seats; the bottoms of the first hoop and the second hoop are fixedly connected with a bottom bracket respectively; the equipment further comprises a chain block mechanism, the chain block mechanism comprises pulling claw pieces which are pulled and hung at the opening positions of the pipelines on the two sides respectively, and the pulling claw pieces are pulled through a chain block hoist. According to the device, in the bell and spigot process, the mouths of the bell and spigot pipelines are kept to be accurately aligned, and the defect that the pipelines, especially heavy large pipelines, are difficult to connect is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline docking, and in particular relates to a pipeline port docking auxiliary chain-falling device. Background Art

[0002] During water conservancy construction, it is often necessary to install pipes for water transportation on pre-opened main canals. In order to meet the transportation needs, the pipes are mostly large pipes with long lengths and large diameters.

[0003] The pipeline is constructed in multiple sections, and during installation, each section is connected using a socket-and-spigot joint. However, maintaining the socket-and-spigot joint and precisely aligning the pipe ends during the installation process pose technical challenges for large, bulky, and heavy pipes.

[0004] Specifically, to facilitate pipeline installation, a crane is currently used to suspend the pipeline during installation to reduce friction with the ground. Operators then use a chain hoist to pull the two pipes together until the pipe ends are connected. However, since the suspended pipes cannot maintain horizontal alignment, during the socket connection process, when the connecting ends of the pipes are brought together, the pipe ends often become misaligned. This makes correcting the heavy and suspended pipes very difficult.

[0005] After repeated corrections over a long period of time, the operator visually observed that the pipes were aligned, but when the pipe ends were inserted into each other, they found strong resistance, indicating that the pipes were not fully aligned. Therefore, how to maintain accurate pipe connection during construction became a technical difficulty.

[0006] Another reason for the inability to accurately dock pipes is that, prior to the socket-and-spigot connection, the pipes are tied with straps, for example. This can lead to unstable tying during the pull of the chain hoist, causing the pulling force to shift, further preventing the pipes from being aligned. Therefore, the need to develop a chain hoist device for docking pipes that can address these existing technical issues has become a technical challenge. Utility Model Content

[0007] The present invention is based on the above technical problems and proposes a pipe port docking auxiliary chain-falling device to solve the problems existing in the above background technology.

[0008] In view of this, the utility model proposes a pipe port docking auxiliary chain device, which includes: a correction support mechanism respectively supported on the socket-connected pipes on both sides, the correction support mechanism includes a pair of correction support assemblies respectively supported at the two ends of the pipe, the correction support assembly includes a first clamp and a second clamp hingedly arranged; the inner side walls of the first clamp and the second clamp are respectively fixedly connected with a plurality of supporting ball components that cooperate with each other, the supporting ball component includes a pair of fixedly connected ear seats, and the ear seats are rotatably connected to each other to interfere with the pipe The first clamp and the second clamp are fixedly connected to the bottom of the bottom bracket respectively; the pipe opening docking auxiliary chain fall device also includes a chain fall mechanism, and the chain fall mechanism includes claw parts respectively hung on the pipe openings on both sides, and the claw parts are pulled by the chain fall hoist; during the pipe socket connection process, the pipes on both sides are pulled close to each other by the chain fall hoist until the pipes are connected by the socket; during the movement of the pipe, the pipe is supported by the correction support assembly, and during the movement, the friction ball contacts the outside of the pipe to keep the pipe always in the alignment posture.

[0009] Furthermore, the upper end of the first clamp is fixedly connected to a pair of hinged tongues, and the upper end of the second clamp is provided with a hinge port for hingedly connecting the hinged tongues.

[0010] Furthermore, the bottom bracket includes a lower support frame portion, and the top of the lower support frame portion is fixedly connected to a plurality of connecting ribs, and the connecting ribs are welded to the bottoms of the corresponding first clamp and second clamp.

[0011] Furthermore, a long locking screw is threadedly connected between the lower support frame parts.

[0012] Furthermore, a rotating shaft is rotatably connected between the ear seats, and the contact ball is fixedly connected to the rotating shaft; when the first clamp and the second clamp are opened, they are clamped into the pipe, and the first clamp and the second clamp are rotated to adjust the first clamp and the second clamp to a vertical position, and the contact ball rolls on the pipe.

[0013] Furthermore, the pulling claw member includes several pulling claws hung at the mouth of the pipe, and the outer ends of the pulling claws are installed with pulling rods; a pulling ring that is detachably installed between the pulling rods is sleeved on the pipe, and the zipper of the chain hoist is hung on the pulling ring.

[0014] Furthermore, a U-shaped steel wire rope is fixedly connected to the pulling ring, and the steel wire rope is hung on the chain hoist.

[0015] Furthermore, the outer end of the pulling rod is integrally formed with an L-shaped pulling part, and the outer end of the L-shaped pulling part is threadedly connected to an outer blocking nut on the outside of the pulling claw; the inner end of the pulling rod is threadedly connected to an inner blocking nut on the outside of the pulling ring.

[0016] Furthermore, the shape of the pulling claw is U-shaped.

[0017] The utility model proposes a pipe joint auxiliary chain-falling device. Compared with the existing technology, the utility model has the following advantages:

[0018] 1. By correcting the support assembly, including the hinged first and second clamps and the installed resistance ball, the pipe is kept in horizontal movement under the limit during the pulling process, thereby maintaining the precise alignment of the pipe ends. This effectively solves the technical problem of the inability to maintain horizontal movement of the pipe and the alignment of the pipe ends during the process of connecting large pipes with sockets and spigots. Under the action of the above structure, the limited pipe is pulled by the chain hoist, and the pipe moves horizontally and linearly, while maintaining the precise alignment of the pipe ends, solving the problem of difficult connection of pipes, especially large and bulky pipes.

[0019] 2. During operation, the chain hoist's zipper is attached to the steel cable. The operator pulls the chain, and the chain hoist pulls the two pipes together until the socket connection is established. Because the claw, pull rod, and pull ring are rigid structures, the pulling point is stable during the pulling process, and the pulling force is balanced and not deviated, resulting in higher precision in the socket connection. Traditional wire rope lashing is less stable. If the wire rope slips, the anchor force point changes, and the pulling force direction shifts, causing the pipe to easily deviate and making it difficult to accurately align the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the correction support assembly in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the claw member in an embodiment of the present utility model;

[0023] Figure 4 For the embodiment of the utility model Figure 1 Middle top view, the arrow in the figure indicates the direction of pipe pulling;

[0024] Figure 5 For the embodiment of the utility model Figure 1 A structural diagram from another perspective.

[0025] In the figure: socket connection pipe 1, correction support assembly 2, first clamp 21, second clamp 22, hinge tongue 211, contact ball 23, ear seat 231, lower support frame part 24, connecting rib 241, long locking screw 25, claw part 3, pulling ring 31, pulling rod 32, L-shaped pulling part 321, claw 33, wire rope 4. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the contents disclosed below.

[0028] The following combination Figures 1 to 5 The technical solution of the utility model is further explained.

[0029] The first embodiment, as Figures 1 to 5 The device, shown here, is a device for assisting pipe joint connection and chain-backing. It includes a correction support mechanism that supports two socket-connected pipes 1 on either side. The correction support mechanism includes a pair of correction support assemblies 2, each supported at either end of the pipe 1. The correction support assemblies 2 maintain horizontal movement of the pipes and ensure alignment of the pipe ends during the pulling and splicing process, thereby improving the stability of the socket connection.

[0030] The orthotic support assembly 2 includes a first clamp 21 and a second clamp 22 that are hingedly connected. Specifically, the upper end of the first clamp 21 is fixedly connected to a pair of hinged tongues 211, and the upper end of the second clamp 22 defines a hinged portion for hingedly connecting the hinged tongues 211. The upper end of the second clamp 22 is fixedly connected to the pin of the hinged tongues 211.

[0031] The bottoms of the first and second clamps 21, 22 are each fixedly connected to a bottom bracket. Specifically, the bottom bracket includes a lower support frame portion 24, the top of which is fixedly connected to a plurality of connecting ribs 241. These connecting ribs 241 are welded to the bottoms of the corresponding first and second clamps 21, 22. A long locking screw 25 is threadedly connected between the lower support frame portions 24.

[0032] During operation, the pipeline is first suspended using a crane. The straightening support assembly 2 is then clamped onto each end of the pipeline. Once secured (with the first and second clamps 21 and 22 open), the straightening support assembly 2 is rotated to a vertical position. In practice, an upper anchor rod (such as a steel drill rod) is slidably connected to the lower support frame 24 according to existing anchoring methods and driven into the ground for reinforcement.

[0033] Because the correction support assembly 2 (made of steel and designed to support heavy, large-diameter pipes) is heavy, a number of cooperating support ball components are fixedly connected to the inner sidewalls of the first and second clamps 21, 22. These support ball components include a pair of fixedly connected ears 231, with a contact ball 23 rotatably connected between the ears 231, which contacts the pipe. Specifically, a rotating shaft is rotatably connected between the ears 231, and the contact ball 23 is fixedly connected to the rotating shaft, or the contact ball 23 is an outward-facing wheel with a limiting function provided on the inner sidewalls of the first and second clamps 21, 22.

[0034] During the installation process, the contact ball 23 rolls to adjust the support assembly 2 to a vertical position. Then, under the crane, because the pipe is limited by the contact ball 23, the pipe always maintains linear motion during the pulling process, and the pipe mouth can be accurately symmetrical during the socket insertion process.

[0035] During actual operation, in order to reduce the resistance to pipe movement during pulling, the rotation direction of the resistance ball 23 is set to the same direction as the movement direction of the pipe (specifically, the ear seat 231 is adjusted to be perpendicular to the inner wall of the first clamp 21 and the second clamp 22. At this time, during the installation of the first clamp 21 and the second clamp 22, the resistance ball 23 in the first clamp 21 and the second clamp 22 cannot roll, and the flexibility rotation is adjusted to a vertical state, and the adjustment ensures that the first clamp 21 and the second clamp 22 are in a vertical state).

[0036] Then, the long locking screw 25 is tightened from the lower support frame 24 on one side to the lower support frame 24 on the other side, and then the first clamp 21 and the second clamp 22 are locked. A crane can also be used to assist in suspension to reduce the load on the first clamp 21 and the second clamp 22.

[0037] After the installation is completed, the long locking screw 25 is loosened. At this time, the operator turns over the first clamp 21 and the second clamp 22 until they are disengaged from the pipeline to release the pipeline.

[0038] The above technical solution effectively solves the technical defect that during the socket-and-spigot connection process of large pipes, the pipe cannot be kept in horizontal movement and the socket-and-spigot pipe mouths cannot be aligned during the process of pulling the pipe by the chain hoist after the crane is suspended. Under the action of the above structure, the limited pipe moves horizontally and linearly under the pulling of the chain hoist, and the socket-and-spigot pipe mouths are kept accurately aligned, which solves the defect that pipes, especially bulky large pipes, are difficult to connect.

[0039] The second embodiment, as Figures 1 to 5 As shown, the difference from the above-mentioned embodiment is that the above-mentioned auxiliary chain-falling device for connecting the main channel pipe opening also includes a chain-falling mechanism. The chain-falling mechanism includes claws 3 that hang on the pipe openings on both sides. According to the existing pipe chain-falling installation method, the claws 3 are pulled between them by a chain-falling hoist (not shown). The claws 3 ensure a stable pulling of the pipe opening. The stable pulling point during the chain-falling hoist pulling process prevents the pulling position from being deviated, further ensuring the precise connection of the pipes.

[0040] Specifically, the claw member 3 includes several claws 33 that are hung at the mouth of the pipe (the claw 33 is a U-shaped steel plate that is hung at the mouth of the pipe. Multiple claws 33 are arranged in an equidistant manner to ensure uniform pulling points and balanced pulling force). The outer end of the claw 33 is installed with a pulling rod 32.

[0041] Specifically, an L-shaped hanging portion 321 is integrally formed on the outer end of the pulling rod 32 , and the outer end of the L-shaped hanging portion 321 is threadedly connected to an outer blocking nut that blocks the outer side of the pulling claw 33 .

[0042] At the same time, a pulling ring 31 is detachably mounted between the pulling rods 32 and is sleeved on the pipe. The zipper of the chain hoist is hung on the pulling ring 31. The pulling ring 31 is fixedly connected with a shaped Figure 1 The U-shaped steel wire rope 4 is hung on the chain hoist. Meanwhile, the inner end of the pulling rod 32 is threadedly connected with an inner blocking nut that blocks the outside of the pulling ring 31.

[0043] During the construction process, after the pipeline is lifted by a crane, the pulling ring 31 is pre-inserted, and then the inner end of the pulling rod 32 is installed on the pulling ring 31. After tightening the inner barrier nut, the L-shaped pulling part 321 of the pulling rod 32 is inserted into the pulling claw 33, and the outer barrier nut is tightened. The pulling claw 33 is slid and pulled to the mouth of the pipeline.

[0044] The chain hoist's zipper is then attached to the steel cable 4, and the operator pulls the chain. Under the pull of the chain hoist, the two pipes approach each other until the socket connection is achieved. Because the pull claw 33, the pulling rod 32, and the pulling ring 31 are rigid structures, the pulling point is stable during the pulling process, and the pulling force is balanced and not deviated, resulting in higher precision of the socket connection. Traditionally, wire rope lashing is not very stable. Once the wire rope slips, the anchor force point changes, and the direction of the pulling force shifts, causing the pipe to easily deviate and making it impossible to accurately align the socket connection.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pipe joint auxiliary chain-down device, characterized by: A correction support mechanism is respectively supported on the socket-connected pipes on both sides, the correction support mechanism includes a pair of correction support assemblies respectively supported at the two ends of the pipe, and the correction support assembly includes a first clamp and a second clamp that are hingedly arranged; A plurality of mutually cooperating support ball components are fixedly connected to the inner side walls of the first clamp and the second clamp, respectively. The support ball components include a pair of fixedly connected ear seats, and a resistance ball is rotatably connected between the ear seats to resist the pipe. The bottoms of the first clamp and the second clamp are respectively fixedly connected to a bottom bracket; It also includes a chain fall mechanism, which includes claw members respectively hung at the pipe openings on both sides, and the claw members are pulled by a chain fall hoist.

2. The pipe opening docking auxiliary chain-falling device according to claim 1, characterized in that: The upper end of the first clamp is fixedly connected with a pair of hinge tongues, and the upper end of the second clamp is provided with a hinge port for hingedly connecting the hinge tongues.

3. The pipe opening docking auxiliary chain-falling device according to claim 2, characterized in that: The bottom bracket includes a lower support frame portion, the top of the lower support frame portion is fixedly connected with a plurality of connecting ribs, and the connecting ribs are welded to the bottoms of the corresponding first clamp and the second clamp.

4. The pipe opening docking auxiliary chain-falling device according to claim 3, characterized in that: A long locking screw is threadedly connected between the lower support frame parts.

5. The pipe opening docking auxiliary chain-falling device according to claim 3, characterized in that: A rotating shaft is rotatably connected between the ear seats, and the interference ball is fixedly connected to the rotating shaft.

6. The pipe opening docking auxiliary chain-falling device according to claim 4, characterized in that: The pulling claw member includes a plurality of pulling claws hanging at the mouth of the pipe, and the outer end of the pulling claw is installed with a pulling rod; A pulling ring sleeved on the pipe is detachably installed between the pulling rods, and the zipper of the chain hoist is hung on the pulling ring.

7. The pipe opening docking auxiliary chain-falling device according to claim 6, characterized in that: A U-shaped steel wire rope is fixedly connected to the pulling ring, and the steel wire rope is hung on the chain hoist.

8. The pipe opening docking auxiliary chain-falling device according to claim 7, characterized in that: The outer end of the pulling rod is integrally formed with an L-shaped hanging portion, and the outer end of the L-shaped hanging portion is threadedly connected to an external blocking nut blocking the outer side of the pulling claw; The inner end of the pulling rod is threadedly connected with an inner blocking nut which is blocked on the outer side of the pulling ring.

9. The pipe opening docking auxiliary chain-falling device according to claim 8, characterized in that: The shape of the pulling claw is U-shaped.

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