Internal aligning device for pipeline

Abstract

The utility model provides a pipeline internal aligning device which comprises a frame and a pushing element, two vertical rods are arranged on the frame in a front-back mode, and the pushing element is located between the two vertical rods. The pushing element comprises two jacking pickaxs which are coaxially arranged and a connecting rod for connecting the two jacking pickaxs, and the middle part of the connecting rod is rotationally mounted at the tops of the two vertical rods through a rotating shaft. The pipeline port roundness adjusting device is simple in structure, the pushing element is rotationally arranged on the frame, the position of the pushing element can be adjusted in the circumferential direction, the pushing element can support the extrusion position of the pipeline port, the pipeline port roundness adjusting speed is increased, the roundness adjusting effect is improved, and it is guaranteed that follow-up pipeline port-to-port welding is conducted smoothly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline butt welding technical field, especially a pipeline inner butt device. BACKGROUND

[0002] In the large pipe diameter pipeline butt welding construction, the large pipe diameter pipeline port is easy to be deformed due to extrusion in the transportation process, and the inner butt device is needed to adjust the port shape, so that the port roundness meets the requirements, to facilitate the butt welding operation.

[0003] At present, the common structure of the inner butt device for the pipeline port includes a center cylinder fixed on the roller support and a plurality of hydraulic jacks symmetrically arranged on the center cylinder. When in use, the roller support is moved into the pipeline, the inner wall of the pipeline is supported by the plurality of hydraulic jacks, and the shaping operation is performed on the pipeline port, so that the roundness meets the welding requirements. However, the common inner butt device has the following problems:

[0004] Firstly, since the center cylinder and the roller support are fixedly connected, the position of the hydraulic jack in the circumferential direction cannot be adjusted, that is, the position of the extrusion deformation of the pipeline port cannot be opened, which finally affects the adjustment effect of the port roundness.

[0005] Secondly, in order to improve the adjustment effect of the port roundness, a plurality of hydraulic jacks need to be closely arranged around the center cylinder, so that the weight and volume of the entire device are large, which leads to inconvenient operation.

[0006] Thirdly, the position of the center cylinder relative to the roller support is fixed. When adjusting the roundness of the pipe port, since the center cylinder and the center of the pipeline need to be concentrically arranged, the entire device can only adjust the roundness of the pipeline port of one pipe diameter, and the versatility of the device is poor. CONTENT OF THE UTILITY MODEL

[0007] Therefore, the utility model aims to provide a pipeline inner butt device to facilitate the adjustment operation of the roundness of the pipe port.

[0008] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0009] A pipeline inner butt device, comprising a frame and a pushing element, two vertical rods are arranged on the frame in front and back, and the pushing element is located between the two vertical rods; the pushing element comprises two top picks arranged coaxially, and a connecting rod connecting the two top picks, and the connecting rod is rotatably installed on the top of the two vertical rods through a rotating shaft;

[0010] An avoiding space corresponding to the pushing element is arranged at the middle position of the frame.

[0011] Further, the two lifting elements are arranged on the two vertical rods, and the push rods of the lifting elements are vertically downward, and the bottom ends of the vertical rods are connected with the push rods of the lifting elements through the connecting pieces.

[0012] Further, one end of the rotating shaft is matched with a hand wheel.

[0013] Further, the two support frames are arranged on the front and back of the frame, and the two vertical rods are located between the two support frames, and the top of each support frame is provided with a slide rail in the horizontal and vertical direction of the frame, and the slide rail is slidably provided with a foot support.

[0014] The foot support is fixed through a set screw and the slide rail.

[0015] Further, the two foot supports are symmetrically arranged on the left and right of each support frame, and the adjacent ends of the two foot supports are respectively provided with the set screws.

[0016] Further, the foot support is provided with a handle.

[0017] Further, the outer end of the wheel axis of the frame is upwardly inclined.

[0018] Compared with the prior art, the pipe inner port device has the following advantages:

[0019] (1) The pipe inner port device has the following advantages: the pushing element is arranged on the frame in a rotating mode, the position of the pushing element can be adjusted in the circumferential direction, the pushing element can be used to support the pipe port, the speed of adjusting the roundness of the pipe port is improved, the adjusting effect of the roundness is improved, and the subsequent pipe port welding is smoothly performed.

[0020] (2) In the pipe inner port device, the position height of the pushing element can be adjusted, the roundness adjustment of the pipe port with different diameters is met, and the universality of the device is improved.

[0021] (3) In the pipe inner port device, the support frame and the foot support are arranged, the inner wall condition above the pipe can be directly observed by the worker, and the work convenience is improved. DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is a front view of the pipe inner port device described in the embodiment;

[0024] Figure 2 It is a top view of the pipe inner port device described in the embodiment;

[0025] Figure 3 A left view of a pipe aligning device according to the embodiment;

[0026] Figure 4 A schematic view of a frame structure according to the embodiment;

[0027] Figure 5 A perspective view of a footrest according to the embodiment;

[0028] Figure 6 A use state diagram of the device.

[0029] Explanation of reference signs:

[0030] 1-frame; 101-avoidance space; 2-connector; 3-support frame; 4-lifting element; 5-vertical rod; 6-jacking element; 61-connection rod; 62-jack pick; 7-footrest; 71-handle; 72-threaded hole; 8-locking screw; 9-ladder; 10-wheel; 11-slideway; 12-handwheel. DETAILED DESCRIPTION

[0031] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] As shown in Figure 1 , Figure 2 and Figure 3 , a pipe aligning device comprises a frame 1, the central axes of the wheels 10 on both sides of the bottom of the frame 1 are arranged obliquely, so that the wheels 10 on both sides support the frame 1 in a triangular support shape, improving the stability of the support of the frame. A front vertical rod 5 and a rear vertical rod 5 are arranged at the center of the frame 1, and a jacking element 6 is arranged between the two vertical rods 5. The jacking element 6 comprises two jack picks 62, both of which are of a hydraulic jack pick structure. An oil tank is arranged on the frame 1 to provide hydraulic oil for the jack picks 62. The two jack picks 62 are connected by a connection rod 61, which is preferably of a pipe structure. The connection rod 61 and the two jack picks 62 are coaxially arranged, the middle part of the connection rod 61 is rotatably installed at the top of the two vertical rods 5 by a rotating shaft, the rotating shaft is horizontal and in the same direction as the moving direction of the frame 1, one end of the rotating shaft is provided with a handwheel 12, and the rotating shaft is rotated by the handwheel 12, thereby driving the jacking element 6 to rotate. In the utility model, the jacking element 6 can rotate 360°, so as to support and jacking the extrusion deformation of the pipe port, to separate the extrusion deformation, so as to make the roundness of the port meet the requirements, so as to ensure that the two pipes can be aligned and welded.

[0033] The frame 1 structure is shown in Figure 4 , the frame 1 is of a square frame structure, and several cross beams are arranged side by side in the square frame. An avoidance space 101 is left at the middle position of the frame 1 to avoid the jacking element 6, so as to realize the rotation of the jacking element 360° around the rotating shaft.

[0034] In this invention, two uprights 5 are respectively equipped with two lifting elements 4. The two lifting elements 4 are located above the frame 1 and are each mounted on the frame 1 via a bracket. The push rod of the lifting element 4 points vertically downward. The bottom end of each upright 5 is connected to the push rod of the lifting element 4 via a connecting piece 2, such as a connecting plate or a connecting block. The two lifting elements 4 operate synchronously, and the push rods extend and retract synchronously, driving the uprights 5 to move up and down, thereby adjusting the height position of the pushing element 6 relative to the frame 1. This satisfies the adjustment of the roundness of the pipe ends of several pipes with different diameters, ensuring that the rotation center, i.e., the pivot position, of the pushing element 6 is the center of the pipe. This ensures that the pushing element 6 supports the pipe along the pipe diameter direction, ensuring that the roundness of the ends meets the requirements after adjustment, thereby improving the versatility of this invention.

[0035] In this invention, the frame 1 has two support frames 3 positioned one in front and one behind, with ladders 9 mounted on the support frames 3. Two uprights 5 are located between the two support frames 3. Each support frame 3 has a slide rail 11 positioned at its top, horizontally and perpendicular to the direction of movement of the frame, through which a footrest 7 is slidably mounted. The footrest 7 has the following structure: Figure 5 As shown, the structure is a rectangular frame with a handle 72 on one side for easy maneuvering of the footrest. Several crossbars are installed within the frame. To improve construction safety, iron plates or wire mesh (not shown) are laid on the footrest 7. The footrest 7 is slidably connected to a set of opposing frame rails 11. The frame rails have threaded holes 72, with corresponding set screws 8. The footrest 7 is pulled out to an appropriate length as needed, and then the set screws 8 are tightened to press against the rails 11, thus securing the footrest 7. This structure allows construction workers to climb onto the footrest 7 to easily observe the support of the upper inner wall of the large-diameter pipe by the jacking element, improving construction convenience.

[0036] In this utility model, each support frame 3 is symmetrically provided with two footrests 7, and the set screws 8 are arranged at the adjacent ends of the two footrests 7.

[0037] The working state of this utility model is as follows: Figure 6 As shown, the frame is moved into the pipe, and the jacking element 6 is rotated so that one of the jacks 62 is facing the compression deformation position of the pipe. Hydraulic oil is input into the other jack, and the head of the other jack 62 extends out and abuts against one side of the inner wall of the pipe. Then, hydraulic oil is input into the first jack (the jack facing the compression deformation position of the pipe), and the head of the first jack extends out and supports the pipe wall, thereby opening up the compression deformation pipe wall and realizing the adjustment of the pipe opening roundness.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe alignment device, characterized in that: The vehicle includes a frame (1) and a jacking element (6). Two uprights (5) are arranged one in front of the other on the frame (1), and the jacking element (6) is located between the two uprights (5). The jacking element (6) includes two jacks (62) arranged coaxially, and a connecting rod (61) connecting the two jacks (62). The middle part of the connecting rod (61) is rotatably mounted on the top of the two uprights (5) through a pivot. The frame (1) has a clearance space (101) in the middle position corresponding to the push element (6).

2. The pipe alignment device according to claim 1, characterized in that: The frame (1) is provided with two lifting elements (4) corresponding to two uprights (5). The push rod of the lifting element (4) is vertically downward. The bottom end of the upright (5) is connected to the push rod of the lifting element (4) through a connector (2).

3. The pipe alignment device according to claim 1, characterized in that: A handwheel (12) is provided at one end of the rotating shaft.

4. The pipe alignment device according to claim 1, characterized in that: The frame (1) has two support frames (3) set in front and behind, and two uprights (5) are located between the two support frames (3). Each support frame (3) has a slide rail (11) set on top in a horizontal and vertical direction of the frame movement. The slide rail (11) slides to set the footrest (7). The footrest (7) is fixed by set screws (8) and slide rails.

5. A pipe alignment device according to claim 4, characterized in that: Each of the support frames (3) is symmetrically provided with two footrests (7) on the left and right, and the set screws (8) are respectively provided at the adjacent ends of the two footrests (7).

6. A pipe alignment device according to claim 4, characterized in that: The footrest (7) is equipped with a handle (72).

7. A pipe alignment device according to claim 1, characterized in that: The outer end of the central axis of the wheel (10) of the frame (1) is inclined upward.

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