Pipeline external aligning device

Abstract

The utility model discloses a pipeline external aligning device which comprises two semicircular pressing rings which are connected end to end, a connecting block is fixedly arranged between the pressing rings, and each pressing ring comprises first annular plate assemblies arranged at the two ends and a plurality of second annular plate assemblies arranged between the first annular plate assemblies. The first annular plate assemblies and the second annular plate assemblies are fixedly connected through bridge plates, and the second annular plate assemblies are fixedly connected through bridge plates. The external aligning device for the pipeline is made of titanium alloy materials, the whole device is light in weight and reasonable in structure, rigidity can be better guaranteed, the product structure is simple, installation is rapid and convenient, and the problems that in the construction process, an internal aligning device is required to automatically walk in the pipeline, pneumatic aligning is adopted, the structure is complex, and construction cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction auxiliary tools, in particular to a pipeline external butt joint device. Background Art

[0002] Pipes are widely used in engineering practice and life settings. Their main purpose is to provide a fast channel for transporting fluids. Generally, large and medium-sized pipelines are butt-jointed on site, and a small number of them are welded in factories. The external butt joint for pipe installation is a necessary pipe joint assembly device in pipeline construction. It plays an extremely important role in ensuring the quality of pipe joint assembly during pipeline installation and construction. Among the various types of pipe joint joints currently used in the market, the internal butt joint is more common.

[0003] Nowadays, the internal jointer used in the construction process requires automatic movement in the pipeline, adopts pneumatic jointing, has a complex structure and high construction cost. In order to solve the above technical problems, the utility model provides a pipeline installation external jointer with simple structure, easy use and low construction cost. Summary of the invention

[0004] The utility model aims to provide a pipe external joint device, which is made of titanium alloy material, is light in weight, has a reasonable structure, can better ensure rigidity, has a simple product structure, is quick and convenient to install, and has simple, practical, safe and economical product features, and solves the problem that the internal joint device is required to move automatically in the pipeline during the construction process, and pneumatic jointing is used, which has a complex structure and high construction cost.

[0005] To achieve the above-mentioned purpose, the utility model provides a pipe external joint device, including two semicircular clamping rings connected end to end, with a connecting block fixedly arranged between the clamping rings, and the clamping ring includes a first ring plate assembly arranged at both ends and a plurality of second ring plate assemblies arranged between the first ring plate assemblies, and the first ring plate assembly and the second ring plate assembly, as well as the second ring plate assemblies themselves, are fixedly connected by bridge plates.

[0006] Preferably, the first ring plate assembly includes two first ring plates arranged side by side, one end of the connecting block is connected to the first ring plates via a connecting pin, and a first fixing hole corresponding to the connecting pin is formed on the first ring plate.

[0007] Preferably, the other end of the connecting block is connected to the first ring plate through a fastener, an external thread is provided on the outer wall of the fastener, a second fixing hole corresponding to the fastener is opened on the first ring plate, and a first internal thread matching the external thread is provided in the second fixing hole.

[0008] Preferably, the second ring plate assembly includes two second ring plates arranged side by side, and a connecting plate is fixedly arranged at a center position between the second ring plates.

[0009] Preferably, one end of the bridge plate is fixedly connected to the second ring plate, a first fastening hole is provided at the connecting end of the bridge plate and the second ring plate, a second fastening hole is provided at the other end of the bridge plate, and trapezoidal screws are penetrated through the first fastening hole and the second fastening hole.

[0010] Preferably, the first fastening hole and the second fastening hole have the same structure, the trapezoidal lead screw is threadedly connected to the first fastening hole and the second fastening hole, and the first fastening hole and the second fastening hole are each provided with a second internal thread corresponding to the trapezoidal lead screw.

[0011] Preferably, a square column foot is provided at one end of the trapezoidal lead screw in the first fastening hole, and a cylindrical foot is provided at one end of the trapezoidal lead screw in the second fastening hole.

[0012] Preferably, the first ring plate and the second ring plate are both made of titanium alloy.

[0013] Preferably, a cotter pin is provided on the connecting pin shaft.

[0014] Therefore, the utility model adopts the above-mentioned external pipe joint device, and the beneficial effects are as follows: the utility model adopts titanium alloy material, which is light in weight, reasonable in structure, and more rigid; the product structure is simple, and the installation is quick and convenient. The product structure is simple, practical, safe, and economical.

[0015] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a pipe outer butt joint device of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of an embodiment of a pipe outer butt joint device of the utility model;

[0018] Figure 3 The utility model is a cross-sectional view of a trapezoidal screw of an embodiment of a pipe external butt joint device.

[0019] Reference numerals

[0020] 1. Connecting block; 2. Bridge plate; 3. First ring plate; 4. Connecting pin; 5. Split pin; 6. Fastener; 7. Second ring plate; 8. Connecting plate; 9. Trapezoidal lead screw; 10. Square column foot; 11. Cylindrical column foot; 12. Steel ball. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] As shown in the figure, a pipe external joint device includes two semicircular clamping rings connected end to end, a connecting block 1 is fixedly arranged between the clamping rings, the clamping ring includes a first ring plate assembly arranged at both ends and a plurality of second ring plate assemblies arranged between the first ring plate assemblies, and the first ring plate assembly and the second ring plate assembly, and the second ring plate assemblies are fixedly connected by a bridge plate 2. Both the connecting block 1 and the bridge plate 2 can be made of steel.

[0024] The first ring plate assembly includes two first ring plates 3 arranged side by side, one end of the connecting block 1 is connected to the first ring plate 3 through a connecting pin 4, and a first fixing hole corresponding to the connecting pin 4 is provided on the first ring plate 3. The connecting pin 4 is provided with a cotter pin 5, which serves as a limit and is used to lock the connecting pin 4.

[0025] The other end of the connecting block 1 is connected to the first ring plate 3 through a fastener 6. An external thread is provided on the outer wall of the fastener 6. The fastener 6 can be a hexagon socket head screw, which is used in conjunction with a hexagon flange nut with fine threads. A second fixing hole corresponding to the fastener 6 is provided on the first ring plate 3, and a first internal thread that cooperates with the external thread is provided in the second fixing hole. This structure facilitates the disassembly and maintenance of the device.

[0026] The second ring plate assembly includes two second ring plates 7 arranged side by side, and the first ring plate 3 and the second ring plate 7 are both made of titanium alloy. The strength-to-density ratio of titanium alloy is much greater than that of other metal materials, and it has good rigidity, light texture and strong practicality.

[0027] A connecting plate 8 is fixedly provided at the center position between the second ring plates 7. The connecting plate 8 can be made of a straight or cross-shaped steel plate and is used to reinforce the device. According to actual performance requirements, the straight or cross-shaped connecting plate 8 can be used alone for reinforcement, or the straight and cross-shaped connecting plates 8 can be used at intervals. In actual use, the connecting plate 8 can be welded to the second ring plate 7.

[0028] One end of the bridge plate 2 is fixedly connected to the second ring plate 7, and a first fastening hole is vertically opened at the connection end between the bridge plate 2 and the second ring plate 7, and a second fastening hole is vertically opened at the other end of the bridge plate 2, and a trapezoidal screw 9 is penetrated in both the first fastening hole and the second fastening hole. The first fastening hole has the same structure as the second fastening hole, and the trapezoidal screw 9 is threadedly connected to the first fastening hole and the second fastening hole, and the first fastening hole and the second fastening hole are both provided with a second internal thread corresponding to the trapezoidal screw 9. A square column foot 10 is provided at one end of the trapezoidal screw 9 in the first fastening hole, and a cylindrical foot 11 is provided at one end of the trapezoidal screw 9 in the second fastening hole.

[0029] During actual installation, the square column foot 10 and the cylindrical foot 11 are installed near one end of the pipe, and a steel ball 12 is set in the cavity formed by the square column foot 10, the cylindrical foot 11 and the end of the trapezoidal screw 9. When the other end of the trapezoidal screw 9 is rotated to fix the pipe, the square column foot 10 or the cylindrical foot 11 will rotate when it is close to the pipe wall. When the trapezoidal screw 9 is further rotated to further tighten it, the trapezoidal screw 9 and the steel ball 12 are relatively worked and contacted. The trapezoidal screw 9 is continued to be rotated until the square column foot 10 or the cylindrical foot 11 cannot rotate. At this time, the pipe is clamped.

[0030] When the device is used, the staff removes the cotter pin 5 and the connecting pin shaft 4 on one side of the connecting block 1, opens a certain angle and puts them near the pipe mouth, and then installs the connecting pin shaft 4 and the cotter pin 5 again to preliminarily fix the pipe; the next step is to make the square column foot 10 of the equipment close to the pipe mouth at one end of the pipe, lock all the trapezoidal screws 9 in one circle, and then use a pipe hoist or other equipment to lift the other pipe and hoist it to a position almost facing the first pipe mouth; then, lock all the screw parts of the cylindrical foot 11 in another circle, and fine-tune all the trapezoidal screws 9 according to the pipe matching accuracy and size until the technical requirements are met, and then weld the two pipes.

[0031] Therefore, the utility model adopts the above-mentioned external pipe joint device, which is easy and quick to operate. By utilizing the trapezoidal screw, square column foot and cylindrical foot arranged on the semicircular clamping ring, the positions of the two pipelines with inconsistent ovality can be adjusted manually without the need for other power. The product structure is simple and the installation is quick and convenient.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A pipe external joint device, characterized in that: It includes two semicircular clamping rings connected end to end, with a connecting block fixedly arranged between the clamping rings. The clamping ring includes a first ring plate assembly arranged at both ends and a plurality of second ring plate assemblies arranged between the first ring plate assemblies. The first ring plate assembly and the second ring plate assembly, as well as the second ring plate assemblies themselves, are fixedly connected via a bridge plate.

2. The pipe outer joint device according to claim 1, characterized in that: The first ring plate assembly includes two first ring plates arranged side by side, one end of the connecting block is connected to the first ring plates via a connecting pin, and a first fixing hole corresponding to the connecting pin is opened on the first ring plate.

3. The pipe outer joint device according to claim 2, characterized in that: The other end of the connecting block is connected to the first ring plate through a fastener, an external thread is arranged on the outer wall of the fastener, a second fixing hole corresponding to the fastener is opened on the first ring plate, and a first internal thread matching the external thread is arranged in the second fixing hole.

4. The pipe outer joint device according to claim 3, characterized in that: The second ring plate assembly includes two second ring plates arranged side by side, and a connecting plate is fixedly arranged at a center position between the second ring plates.

5. The pipe outer joint device according to claim 4, characterized in that: One end of the bridge plate is fixedly connected to the second ring plate, a first fastening hole is provided at the connecting end of the bridge plate and the second ring plate, a second fastening hole is provided at the other end of the bridge plate, and trapezoidal screws are penetrated through the first fastening hole and the second fastening hole.

6. The external pipe joint according to claim 5, characterized in that: The first fastening hole and the second fastening hole have the same structure, the trapezoidal lead screw is threadedly connected to the first fastening hole and the second fastening hole, and the first fastening hole and the second fastening hole are both provided with a second internal thread corresponding to the trapezoidal lead screw.

7. The external pipe joint according to claim 6, characterized in that: One end of the trapezoidal lead screw in the first fastening hole is provided with a square column foot, and one end of the trapezoidal lead screw in the second fastening hole is provided with a cylindrical foot.

8. The external pipe joint according to claim 7, characterized in that: The first ring plate and the second ring plate are both made of titanium alloy.

9. The external pipe joint according to claim 8, characterized in that: A split pin is arranged on the connecting pin shaft.

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