Adjustable large-diameter long pipeline quick connecting device
The adjustable large-diameter long-distance pipeline quick connection device, which combines a support sleeve, screw, and limit clamp, solves the problems of high labor intensity and low efficiency in traditional large-diameter pipeline docking methods, and achieves precise and rapid pipeline docking, reducing construction difficulty and safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG CITY CONSTR RECONNAISSANCE DESIGN RES INST
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-26
Smart Images

Figure CN224406714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a pipe connection device, and more particularly to an adjustable large-diameter long-distance pipeline quick connection device, belonging to the field of pipeline welding technology. Background Technology
[0002] Large-diameter pipelines are widely used in oil, natural gas, chemical, water conservancy, and municipal water supply and drainage industries. With the continuous advancement of infrastructure construction, the demand for the installation and maintenance of large-diameter pipelines is increasing, placing higher requirements on the construction quality and efficiency. Traditional pipeline connection methods rely heavily on manual operation, such as using hand-operated hoists and wire ropes to drag and align the pipelines. This method is not only labor-intensive but also inefficient, prone to inaccurate connections and pipeline damage, leading to safety hazards such as pipeline leaks and stress concentration. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an adjustable large-diameter long-distance pipeline quick connection device, which facilitates the precise connection of pipe ends by the staff, improves work efficiency and reduces construction difficulty.
[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:
[0005] An adjustable large-diameter long-distance pipeline quick connection device includes a first support sleeve, a first screw, and a displacement sleeve. The first screw is threadedly connected inside the first support sleeve, and a first connecting post is connected to the end of the first screw. A first limiting clamp is rotatably connected to the end of the first connecting post. A second limiting clamp is fixedly connected to the top of the first support sleeve. A displacement sleeve is sleeved on the first support sleeve, and second support sleeves are respectively connected to both ends of the displacement sleeve. A second screw is threadedly connected to the second support sleeve, and a second connecting post is connected to the end of the second screw. A third limiting clamp is rotatably connected to the end of the second connecting post.
[0006] The first support sleeve and the second support sleeve are arranged in a cross shape.
[0007] A guide cylinder is provided above the displacement sleeve, and a tightening bolt is provided on the outside of the guide cylinder.
[0008] The first, second, and third limiting clamps are all composed of a base plate, a support plate, and adjusting bolts. A rectangular groove is carved into the inner end of the base plate, and a guide wheel is provided in the rectangular groove. A support plate is provided in the middle of the outer end face of the base plate, and a sleeve plate is fitted on the support plate. An adjusting bolt is provided on the top surface of the sleeve plate.
[0009] The inner end of the base plate corresponds to the upper and lower ends of the sleeve plate.
[0010] A sleeve is provided at the left end of the sleeve plate, and the sleeve and the sleeve plate are distributed in an L-shape. The sleeve is fitted onto the support plate and fixed by bolts.
[0011] The positive and beneficial effects of this utility model are:
[0012] 1. This utility model, by setting a first limiting clamp, a second limiting clamp, and a third limiting clamp, allows the outer end of the base plate to be pressed against the inner wall of the pipe opening during use, so that the inner end of the base plate extends out. The connecting pipe opening only needs to move horizontally along the guide wheel at the outer end of the base plate to quickly connect with the pipeline, which improves work efficiency and reduces construction difficulty.
[0013] 2. This utility model, by setting a tightening bolt on the sleeve plate, can adjust the connection between the two pipe openings, thereby achieving a quick connection effect. After the connection is completed, the sleeve plate can be removed, and the support plate can be retracted into the pipe by rotating the screw. It is convenient to use and simple to operate.
[0014] 3. This utility model, by fitting a displacement sleeve outside the first support sleeve, allows the position of the displacement sleeve to be freely adjusted according to the center position of the pipe opening during use. The displacement sleeve can move up and down along the first support sleeve and the first screw, thereby clamping and fixing the pipe opening in the lateral direction and improving the accuracy of the pipe opening connection. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the second support sleeve of this utility model;
[0017] Figure 3 This is a schematic diagram of the limiting clamp of this utility model;
[0018] Wherein: 1-first support sleeve, 2-first screw, 3-first connecting column, 4-base plate, 5-rectangular groove, 6-guide wheel, 7-support plate, 8-sleeve plate, 9-adjusting bolt, 10-displacement sleeve, 11-guide cylinder, 12-second support sleeve, 13-second screw, 14-second connecting column. Detailed Implementation
[0019] The present invention will be further explained and described below with reference to the accompanying drawings:
[0020] See the example. Figures 1-3An adjustable large-diameter long-distance pipeline quick connection device includes a first support sleeve 1, a first screw 2, and a displacement sleeve 10. The first screw 2 is threadedly connected inside the first support sleeve 1. A first connecting post 3 is connected to the end of the first screw 2. A first limiting clamp is rotatably connected to the end of the first connecting post 3. A second limiting clamp is fixedly connected to the top of the first support sleeve 1. The displacement sleeve 10 is sleeved on the first support sleeve 1. A second support sleeve 12 is connected to both ends of the displacement sleeve 10. A second screw 13 is threadedly connected to the second support sleeve 12. A second connecting post 14 is connected to the end of the second screw 13. A third limiting clamp is rotatably connected to the end of the second connecting post 14.
[0021] The first support sleeve 1 and the second support sleeve 12 are arranged in a cross shape.
[0022] A guide cylinder 11 is provided above the displacement sleeve 10, and a tightening bolt is provided on the outside of the guide cylinder 11.
[0023] The first, second, and third limiting clamps are all composed of a base plate 4, a support plate 7, and an adjusting bolt 9. A rectangular groove 5 is carved into the inner end of the base plate 4, and a guide wheel 6 is installed in the rectangular groove 5. A support plate 7 is installed in the middle of the outer end face of the base plate 4, and a sleeve plate 8 is fitted on the support plate 7. An adjusting bolt 9 is installed on the top surface of the sleeve plate 8.
[0024] The inner end of the base plate 4 corresponds to the upper and lower ends of the sleeve plate 8.
[0025] A sleeve is provided at the left end of the sleeve plate 8, and the sleeve and the sleeve plate 8 are distributed in an L-shape. The sleeve is fitted onto the support plate 7 and fixed by bolts.
[0026] In the above description, the support plate and the base plate are an integral structure, and the thickness of the support plate is consistent with the width of the weld.
[0027] In the above description, a guide cylinder is provided above the displacement sleeve, and the displacement sleeve and the guide cylinder can move up and down along the first support sleeve and the first screw.
[0028] In the above description, bolt holes are respectively drilled on the support plate and the sleeve plate, and the support plate and the sleeve plate are fixedly connected together by bolts.
[0029] In use, rotate the first screw to tighten the first limiting clamp against the bottom of the pipe opening and the second limiting clamp against the top of the pipe opening. At the same time, adjust the position of the displacement sleeve and rotate the second screw to tighten the third limiting clamp against the inner walls on both sides of the pipe opening. Then, move the aligned pipe along the inner end of the base plate. Under the action of the guide wheel, it can move horizontally quickly. Then, use the adjusting bolt to make precise adjustments to the pipe opening. After alignment, perform spot welding. The spot welding position should be around the four support plates. After welding, remove the sleeve from the support plate and adjust the first and second screws to retract the support plate into the pipe.
[0030] This utility model, by setting a first limiting clamp, a second limiting clamp, and a third limiting clamp, allows the outer end of the base plate to be pressed against the inner wall of the pipe opening during use, so that the inner end of the base plate extends out. The connecting pipe opening only needs to move horizontally along the guide wheel at the outer end of the base plate to quickly connect with the pipeline, which improves work efficiency and reduces construction difficulty.
Claims
1. An adjustable large-diameter long-distance pipeline quick connecting device, comprising a first supporting sleeve (1), a first screw rod (2) and a displacement sleeve (10), characterized in that: The first support sleeve (1) is connected to a first screw (2) by a thread. The end of the first screw (2) is connected to a first connecting post (3). The end of the first connecting post (3) is rotatably connected to a first limiting clamp. The top of the first support sleeve (1) is fixedly connected to a second limiting clamp. A displacement sleeve (10) is sleeved on the first support sleeve (1). The two ends of the displacement sleeve (10) are respectively connected to a second support sleeve (12). The second support sleeve (12) is connected to a second screw (13) by a thread. The end of the second screw (13) is connected to a second connecting post (14). The end of the second connecting post (14) is rotatably connected to a third limiting clamp.
2. The adjustable large-diameter long-distance pipeline quick connection device according to claim 1, characterized in that: The first support sleeve (1) and the second support sleeve (12) are arranged in a cross shape.
3. The adjustable large-diameter long-distance pipeline quick connection device according to claim 1, characterized in that: A guide cylinder (11) is provided above the displacement sleeve (10), and a tightening bolt is provided on the outside of the guide cylinder (11).
4. The adjustable large-diameter long-distance pipeline quick connection device according to claim 1, characterized in that: The first limiting clamp, the second limiting clamp, and the third limiting clamp are all composed of a base plate (4), a support plate (7), and an adjusting bolt (9). The inner end of the base plate (4) is provided with a rectangular groove (5), and a guide wheel (6) is provided in the rectangular groove (5). The support plate (7) is provided in the middle of the outer end face of the base plate (4), and a sleeve plate (8) is fitted on the support plate (7). An adjusting bolt (9) is provided on the top surface of the sleeve plate (8).
5. The adjustable large-diameter long-distance pipeline quick connection device according to claim 4, characterized in that: The inner end of the base plate (4) corresponds to the upper and lower ends of the sleeve plate (8).
6. The adjustable large-diameter long-distance pipeline quick connection device according to claim 4, characterized in that: A sleeve is provided at the left end of the sleeve plate (8), and the sleeve and the sleeve plate (8) are distributed in an L-shape. The sleeve is sleeved on the support plate (7) and fixed by bolts.