Angle steel type pipe aligning device
By using a pipe fitting device in the form of angle steel, and utilizing a C-shaped frame and support structure, the problems of long adjustment time and high complexity in existing technologies have been solved, enabling high-precision and stable welding of pipes with diameters of DN150 or less.
Patent Information
- Application Number
- CN202423019431.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing double-sided set screw butt jointers have long adjustment times and complex operation when butt welding pipes, and are not suitable for pipes DN150 or smaller. They also lack leveling adjustment function, resulting in low welding accuracy and efficiency.
The pipe fitting device, which uses angle steel, utilizes a C-shaped frame, supporting angle steel, double-layer support plates, and a bubble structure. The pipe position is adjusted by toothed engagement and a hand-cranked hoist, and the frame level is adjusted by anchor bolts and nuts to achieve concentric pipe connection.
It improves the welding accuracy and ease of operation for pipes with diameters of DN150 or less, reduces the complexity of adjustment, has a wide range of applications, and ensures the stability and accuracy of welding.
Smart Images
Figure CN223819995U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of offshore LNG ship design and construction, and particularly relates to a pipe aligning device in the form of an angle steel. BACKGROUND
[0002] In pipe aligning welding operation, the pipe orifice concentricity needs to be ensured. The existing double-sided top pin aligning device has many top pin nodes, and the number of top pins to be adjusted is large, and the adjustment time is long. The locking force also affects the aligning precision. The design of the top pin aligning device is suitable for large-diameter pipes in the petroleum system, and is not suitable for smaller-diameter pipes in the shipbuilding field. The aligning device lacks pipe levelness adjustment function. The present application solves the problems of welding precision and operation complexity of pipes less than or equal to DN150, and improves the construction efficiency and welding precision. SUMMARY
[0003] To solve the above problems, the present application provides a pipe aligning device in the form of an angle steel, which aims to improve the precision of pipes less than or equal to DN150 and reduce the complexity of operation, and the technical scheme adopted is:
[0004] A pipe aligning device in the form of an angle steel has a C-shaped frame body, a group of support angle steels are fixed inside the frame body, and the end portions of the pipes to be connected are placed on the support angle steels. Each group of support angle steels has upper supports and lower supports with the same structure.
[0005] A double-layer support plate is arranged at the top of the frame body, and a double-layer bottom plate is arranged at the bottom. A horizontal water bubble and a vertical water bubble are fixed to the upper surface of the double-layer bottom plate. A rack is arranged at the edge of one side of the double-layer bottom plate. The upper supports are fixed to the double-layer support plate through stud bolts, and the lower supports are fixed to the double-layer bottom plate through support plates. The upper supports and the lower supports are both L-shaped components. The L-shaped opening of the upper support faces downward, and the L-shaped opening of the lower support faces upward.
[0006] Anchor bolts are fixed to the bottom of the frame body. The anchor bolts penetrate the double-layer bottom plate from bottom to top, and are fixed at the top with anchor nuts and at the bottom with adjusting nuts.
[0007] Two aligning devices are used in cooperation. The sides with racks of the frame bodies of the two aligning devices are connected to each other to form a tooth engagement. A hand-operated hoist is fixed to the frame body. The relative positions of the two aligning devices are adjusted by pulling the hand-operated hoist. The misalignment of the racks is adjusted by pulling the hand-operated hoist, so that the centers of the two pipes coincide. The levelness of the frame is adjusted by adjusting the relative positions of the anchor bolts, the anchor nuts and the adjusting nuts, so that the centers of the pipes are horizontal. The horizontalness of the centers of the pipes is verified by the horizontal water bubble and the vertical water bubble.
[0008] The pipe aligning device of the above-mentioned angle steel type is further provided with a top part of the upper support fixedly connected with one end of a stud, the other end of the stud penetrating the double-layer support plate from bottom to top and fixedly connected with the top nut, and the stud being movable up and down relative to the double-layer support plate.
[0009] The pipe aligning device of the above-mentioned angle steel type is further provided with the support plate penetrating the double-layer bottom plate and being fixedly welded with the double-layer bottom plate.
[0010] The pipe aligning device of the above-mentioned angle steel type is further provided with a gasket arranged on the upper surface and the lower surface of the double-layer bottom plate at the foundation bolt.
[0011] The pipe aligning device of the above-mentioned angle steel type is further provided with the to-be-connected pipe placed between the upper support and the lower support.
[0012] The pipe aligning device of the above-mentioned angle steel type is further provided with the foundation nut arranged on the upper surface of the double-layer bottom plate and the adjusting nut arranged on the lower surface of the double-layer bottom plate.
[0013] The pipe aligning device of the above-mentioned angle steel type is further provided with the to-be-connected pipe placed between the upper support and the lower support, the two wing plates of the upper support tangent to the outer surface of the to-be-connected pipe, and the two wing plates of the lower support tangent to the outer surface of the to-be-connected pipe.
[0014] The pipe aligning device of the above-mentioned angle steel type is further provided with the to-be-connected pipe placed between the upper support and the lower support, the two wing plates of the upper support tangent to the outer surface of the to-be-connected pipe, and the two wing plates of the lower support tangent to the outer surface of the to-be-connected pipe.
[0015] 1. The angle steel is in contact with the pipe, and four points of the pipe section are contacted, so that the precision is improved compared with three points in the same plane. The new scheme has fewer locking and adjusting nodes, and the process complexity and adjusting time of the multi-top screw adjusting are avoided.
[0016] 2. The angle steel is tangent to the outer wall of the pipe and contacts the outer wall of the pipe along the axial direction, so that the stability of the pipe fixing and welding is ensured, the welding precision is ensured, and the pipe levelness during the pipe butt welding is ensured.
[0017] 3. The present application is simple to operate, widely applicable, and can be applied to pipes with a diameter of DN150 or less by adjusting the height of the angle steel upper opening through the stud nut. DETAILED DESCRIPTION
[0018] Figure 1 is a front view of the structure of the present application;
[0019] Figure 2 is a side view of the structure of the present application;
[0020] Figure 3 is a bottom view of the structure of the present application;
[0021] Wherein, 1-frame body, 2-double support plate, 3-double bottom plate, 4-upper support, 5-lower support, 6-double stud, 7-longitudinal bubble, 8-transverse bubble, 9- anchor nut, 10-rack, 11-top nut, 12-pipes to be butt joint, 13-washer, 14-support plate, 17-anchor bolt, 18-adjusting nut. DETAILED DESCRIPTION
[0022] The application is further described in conjunction with the accompanying drawings.
[0023] A pipe butt joint device in the form of angle steel, as shown in Figure 1 , 2 , has a C-shaped frame body, a group of support angle steels fixed inside the frame body, and pipes to be butt joint placed on the support angle steels respectively. The frame body is provided with a double support plate at the top and a double bottom plate at the bottom. Each group of support angle steels is provided with an upper support and a lower support of the same structure. The upper support is fixed on the double support plate through a double stud. The top of the upper support is fixedly connected with one end of the double stud. The other end of the double stud penetrates the double support plate from bottom to top in sequence and is fixed with a top nut. The double stud is movable up and down relative to the double support plate. The upper surface of the double bottom plate is fixed with a transverse bubble and a longitudinal bubble.
[0024] The lower support is fixed on the double bottom plate through a support plate. The support plate penetrates the double bottom plate in sequence and is fixedly welded with the double bottom plate. The upper support and the lower support are both L-shaped members. The L-shaped opening of the upper support is downward, and the L-shaped opening of the lower support is upward.
[0025] The double bottom plate is provided with a rack at one side edge. Two butt joint devices are used in cooperation. The sides with the rack of the two butt joint devices are connected to each other to form a tooth engagement. A hand-operated hoist is fixed on the frame body. The relative positions of the two butt joint devices are adjusted by pulling the hand-operated hoist.
[0026] As shown in Figure 3 , the frame body is fixed with an anchor bolt at the bottom. The anchor bolt penetrates the double bottom plate from bottom to top in sequence and is fixed with an anchor nut.
[0027] The use method is as follows:
[0028] 1. Adjust the levelness of the frame body. The levelness is adjusted by observing the transverse bubble and the longitudinal bubble, twisting the four anchor bolts to adjust up and down, adjusting the double bottom plate to be horizontal by adjusting the anchor bolts, and locking the anchor nuts after the adjustment.
[0029] 2. Loosen the top nut. Place the two end pipes into the lower supports respectively and sit on the openings of the lower supports. Adjust the top nut to clamp the double stud. The two wing plates of the lower support are tangent to the pipes. The wing plates contain the pipes in the axial direction of the pipes to fix the pipes. Adjust the rack to slightly adjust the left-right displacement adjustment amount of the two pipes.
[0030] 3. Weld the pipe joint. After the pipe joint is welded, loosen the top nut, move the upper support upward, and rotate the pipe until the repair welding is completed.
Claims
1. A pipe fitting in the form of an angle steel, characterized in that, It has a C-shaped frame main body, and a set of supporting angle steel is fixed inside the frame main body. The end of the pipe to be connected is placed on the supporting angle steel. Each set of supporting angle steel has an upper support and a lower support with the same structure. The main frame has a double-layer support plate at the top and a double-layer base plate at the bottom. The upper surface of the double-layer base plate is fixed with horizontal and vertical water bubbles. A toothed rack is set on one edge of the double-layer base plate. The upper support is fixed to the double-layer support plate by double-headed studs, and the lower support is fixed to the double-layer base plate by a support plate. Both the upper and lower supports are L-shaped components. The L-shaped opening of the upper support faces downward and the L-shaped opening of the lower support faces upward. The bottom of the main frame is fixed with anchor bolts, which penetrate the double bottom plate from bottom to top. The top is fixed with the anchor nut and the bottom is fixed with the adjusting nut. The two mouthpieces are used together. The two mouthpiece frames are connected on opposite sides with toothed sides to form a toothed mesh. A hand-cranked hoist is fixed on the frame body. Pulling the hand-cranked hoist adjusts the relative position of the two mouthpieces.
2. The pipe fitting in the form of an angle steel according to claim 1, characterized in that, The top of the upper support is fixedly connected to one end of the double-headed stud, and the other end of the double-headed stud penetrates the double-layer support plate from bottom to top and is fixed with the top nut. The double-headed stud can move up and down relative to the double-layer support plate.
3. A pipe fitting in the form of an angle steel according to claim 1, characterized in that, The support plate passes through the double-layer base plate in sequence and is welded and fixed to the double-layer base plate.
4. A pipe fitting in the form of an angle steel according to claim 1, characterized in that, Washers are provided on both the upper and lower surfaces of the double-layer base plate at the anchor bolt location.
5. A pipe fitting in the form of an angle steel according to claim 1, characterized in that, The pipe to be connected is placed between the upper and lower supports.
6. A pipe fitting in the form of an angle steel according to claim 1, characterized in that, Anchor nuts are located on the upper surface of the double-layer base plate, and adjusting nuts are located on the lower surface of the double-layer base plate.