Pipeline connecting structure

Abstract

The utility model discloses a pipeline connecting structure, relates to the technical field of pipeline connection, and aims to solve the problem that in the prior art, when two pipelines are connected, a flange plate and a bolt are usually adopted for fixing, the two pipelines can be separated only by completely separating the bolt from a nut during disassembly, and the operation is troublesome. A jacking ring is arranged on the end face of the outer side of the second pipeline and located at the rear end of the second connecting disc, a plurality of third U-shaped notches are formed in the jacking ring in an annular array mode, and rotating connecting pieces are fixedly connected to the positions, on the two sides of each third U-shaped notch, of the side end face of the jacking ring. A rotating column is rotationally connected between the rotating connecting pieces on the two sides of the third U-shaped notch, a screw rod is fixedly connected to the rotating column, the rotatable screw rod and the U-shaped notch structure are arranged, a pipeline can be rapidly separated only by loosening a nut and rotating the screw rod out of the notch in the disassembling process, the bolt and the nut do not need to be completely disassembled, and therefore the pipeline can be rapidly disassembled. And the convenience and the working efficiency of pipeline disassembly and assembly are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, specifically a pipe connection structure. Background Technology

[0002] Pipelines are closed-loop systems used for transporting liquids, gases, or slurry-like solids over long or short distances. They are widely used in petroleum, natural gas, chemical, water conservancy, and municipal engineering fields. Their core function is to achieve efficient and safe transmission of media through pressure or gravity, offering advantages such as large transport capacity, strong continuity, and low energy consumption. Pipelines are typically made of steel, plastic, or composite materials and are equipped with pump stations, valves, and monitoring systems to ensure stable operation. For example, oil pipelines transport crude oil from oil fields to refineries, while urban water supply pipelines ensure residents' daily water needs. Furthermore, pipeline transportation reduces environmental pollution and traffic congestion, making it an important component of modern infrastructure. During installation, two pipelines need to be secured together using connecting structures.

[0003] For example, patent announcement number CN221943507U discloses a pipe connection structure, including a connecting pipe, a flange plate, and an expansion plate. The flange plate is located on opposite sides of the connecting pipe and has multiple first screw holes. A fixing groove is formed circumferentially at the end of the flange plate. Two expansion plates are provided, each with multiple connecting holes and inserts. Each insert has a second screw hole corresponding to one of the first screw holes. The insert is inserted into the fixing groove and circumferentially engages with the fixing groove. With this design, the pipe connection structure provided by this invention allows for connection of pipes of different sizes without replacing the connecting pipe and flange plate; only the expansion plate of the corresponding size needs to be replaced. This provides good adaptability and flexibility, greatly improving the convenience of pipe connection.

[0004] The existing method of connecting two pipes usually uses flanges and bolts for fixing. Disassembly requires completely removing the bolts and nuts to separate the two pipes, which is quite troublesome. Therefore, there is an urgent need in the market to develop a pipe connection structure to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe connection structure to solve the problem mentioned in the background art that when two pipes are connected, they are usually fixed with flanges and bolts, and it is quite troublesome to completely remove the bolts and nuts to separate the two pipes during disassembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe connection structure, including a first pipe and a second pipe, wherein a first connecting plate is provided at the rear end of the first pipe, the second pipe is connected to the rear end of the first pipe, a second connecting plate is provided at the front end of the second pipe, a tightening ring is provided on the outer end face of the second pipe and at the rear end of the second connecting plate, a plurality of third U-shaped notches are arranged in a circular array on the tightening ring, a rotating connector is fixedly connected on the side end face of the tightening ring and on both sides of each third U-shaped notch, a rotating column is rotatably connected between the rotating connectors on both sides of the third U-shaped notch, and a screw is fixedly connected on the rotating column.

[0007] Preferably, the first connecting plate is fixedly connected to the rear end of the outer end face of the first pipe, the second connecting plate is fixedly connected to the front end of the outer end face of the second pipe, and the tightening ring is slidably connected to the outer wall of the second pipe.

[0008] Preferably, the first connecting plate has a ring array of multiple first U-shaped notches, and the second connecting plate has a ring array of multiple second U-shaped notches.

[0009] Preferably, a rotating shaft is fixedly connected to both sides of the rotating column, and the two rotating shafts are respectively inserted into the two rotating connectors and rotatably connected to the rotating connectors.

[0010] Preferably, the front end of the screw passes through the third U-shaped notch, the second U-shaped notch and the first U-shaped notch in sequence, and then extends to the front end face of the first connecting disc, where a nut is threadedly connected.

[0011] Preferably, a sealing ring is provided between the rear end of the first pipe and the front end of the second pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In this utility model, a rotatable screw and a U-shaped notch structure are provided. When disassembling, the pipe can be quickly separated simply by loosening the nut and rotating the screw out of the U-shaped notch. There is no need to completely disassemble the bolts and nuts, which greatly improves the convenience and efficiency of pipe disassembly and assembly.

[0014] (2) In this utility model, a clamping structure of a top tightening ring, a first connecting plate and a second connecting plate is adopted. Combined with the use of a sealing ring, the sealing performance of the pipe connection is ensured, the leakage of medium is effectively prevented, and the reliability of the connection is improved.

[0015] (3) In this utility model, by covering the connection part with heat shrink tubing, the metal parts such as screws and nuts are isolated from the outside world, avoiding rust caused by long-term exposure to humid or corrosive environments, extending the service life of the connection structure and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a front view of a pipe connection structure according to the present invention;

[0017] Figure 2 This is a schematic diagram of the pipe connection structure of this utility model;

[0018] Figure 3 This is a side sectional view of the heat shrink tubing of this utility model;

[0019] Figure 4 This is a main sectional view of the rotating column of this utility model;

[0020] Figure 5 This is a side sectional view of the clamping ring of this utility model;

[0021] Figure 6 This is a detailed enlarged view of part A of this utility model.

[0022] In the diagram: 1. First pipe; 101. First connecting plate; 102. First U-shaped notch; 2. Second pipe; 201. Second connecting plate; 202. Second U-shaped notch; 3. Tightening ring; 301. Third U-shaped notch; 302. Rotating connector; 4. Rotating column; 401. Rotating shaft; 402. Screw; 403. Nut; 5. Sealing ring; 6. Heat shrink tubing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-6This utility model provides an embodiment of a pipe connection structure, including a first pipe 1 and a second pipe 2. A first connecting plate 101 is provided at the rear end of the first pipe 1, and the first connecting plate 101 is fixedly connected to the rear end of the outer end face of the first pipe 1. The second pipe 2 is connected to the rear end of the first pipe 1. A second connecting plate 201 is provided at the front end of the second pipe 2, and the second connecting plate 201 is fixedly connected to the front end of the outer end face of the second pipe 2. A tightening ring 3 is provided on the outer end face of the second pipe 2 and at the rear end of the second connecting plate 201. The tightening ring 3 is slidably fitted into the outer wall of the second pipe 2. Multiple third U-shaped notches 301 are arranged in a circular array on the tightening ring 3. Rotary connecting parts 302 are fixedly connected to both sides of each third U-shaped notch 301 on the side end face of the tightening ring 3. A rotating column 4 is rotatably connected between the rotating connecting parts 302 on both sides of the third U-shaped notch 301. A screw 402 is fixedly connected to the rotating column 4. Rotary shafts 401 are fixedly connected to both sides of the rotating column 4. The two rotating shafts 401 are respectively inserted into the two rotating connecting parts 302. Rotary connection with rotating connector 302 allows rotating column 4 to rotate via rotating shaft 401, thereby allowing screw 402 to rotate. Multiple first U-shaped notches 102 are arranged in a circular array on first connecting plate 101, and multiple second U-shaped notches 202 are arranged in a circular array on second connecting plate 201. The front end of screw 402 passes sequentially through third U-shaped notch 301, second U-shaped notch 202, and first U-shaped notch 102 before extending out of the front end face of first connecting plate 101 and being threadedly connected to nut 403. When pipe 1 and pipe 2 are connected, multiple nuts 403 are used to connect to screw 402, which clamps and fixes the first connecting plate 101, the second connecting plate 201 and the tightening ring 3. When disassembling, only the nuts 403 need to be loosened, and the screw 402 is rotated outward by rotating column 4 to disengage from the third U-shaped notch 301, the second U-shaped notch 202 and the first U-shaped notch 102, so that the first pipe 1 and pipe 2 can be separated without completely separating screw 402 and nuts 403, thus improving disassembly efficiency.

[0025] Please see Figure 3 and Figure 6 A sealing ring 5 is provided between the rear end of the first pipe 1 and the front end of the second pipe 2. When the first connecting plate 101, the second connecting plate 201 and the top clamping ring 3 are clamped together for fixation, the sealing ring 5 is clamped between the rear end of the first pipe 1 and the front end of the second pipe 2 to achieve sealing.

[0026] Please see Figure 1 and Figure 3The first connecting plate 101, the second connecting plate 201, and the tightening ring 3 are all covered with heat shrink tubing 6. After the first pipe 1 and the second pipe 2 are fixedly connected, the heat shrink tubing 6 is heated to tightly cover the outside of the first connecting plate 101, the second connecting plate 201, and the tightening ring 3, thus isolating the tightening ring 3 and its screw 402 and nut 403 from the outside air and preventing the screw 402 and nut 403 from rusting due to long-term use.

[0027] Working Principle: During use, align the ends of the first pipe 1 and the second pipe 2, ensuring the U-shaped notches on the first connecting plate 101 and the second connecting plate 201 correspond. Slide the tightening ring 3 along the outer wall of the second pipe 2 to behind the second connecting plate 201. Adjust the rotating column 4 so that the screw 402 passes through the third U-shaped notch 301, the second U-shaped notch 202, and the first U-shaped notch 102 in sequence. Then tighten the nut 403. The threaded tightening force tightly presses the tightening ring 3, the second connecting plate 201, and the first connecting plate 101 together, while simultaneously compressing the sealing ring 5 to seal the pipe connection. For disassembly, simply loosen the nut 403 and rotate the screw 402 out of the third U-shaped notch 301, the second U-shaped notch 202, and the first U-shaped notch 102 to quickly separate the pipes without completely removing the bolts. Finally, heat shrink tubing 6 is used to heat-wrap the connection area to prevent external corrosion. This structure enables rapid assembly and disassembly of pipes while ensuring the sealing and corrosion resistance of the connection.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pipe connection structure, comprising a first pipe (1) and a second pipe (2), characterized in that: The first pipe (1) is provided with a first connecting plate (101) at its rear end. The first pipe (1) is connected to a second pipe (2) at its rear end. The second pipe (2) is provided with a second connecting plate (201) at its front end. A tightening ring (3) is provided on the outer end face of the second pipe (2) at the rear end of the second connecting plate (201). A plurality of third U-shaped notches (301) are arranged in a ring array on the tightening ring (3). Rotary connecting parts (302) are fixedly connected on the side end face of the tightening ring (3) and on both sides of each third U-shaped notch (301). A rotating column (4) is rotatably connected between the rotating connecting parts (302) on both sides of the third U-shaped notch (301). A screw (402) is fixedly connected on the rotating column (4).

2. The pipe connection structure according to claim 1, characterized in that: The first connecting plate (101) is fixedly connected to the rear end of the outer end face of the first pipe (1), the second connecting plate (201) is fixedly connected to the front end of the outer end face of the second pipe (2), and the tightening ring (3) is slidably connected to the outer wall of the second pipe (2).

3. The pipe connection structure according to claim 1, characterized in that: The first connecting plate (101) has a ring array of multiple first U-shaped notches (102), and the second connecting plate (201) has a ring array of multiple second U-shaped notches (202).

4. A pipe connection structure according to claim 3, characterized in that: The rotating column (4) is fixedly connected to two rotating shafts (401) on both sides. The two rotating shafts (401) are respectively inserted into the two rotating connectors (302) and rotatably connected to the rotating connectors (302).

5. A pipe connection structure according to claim 1, characterized in that: The front end of the screw (402) passes through the third U-shaped notch (301), the second U-shaped notch (202) and the first U-shaped notch (102) in sequence, and then extends out to the front end of the first connecting plate (101) with a nut (403) threadedly connected.

6. A pipe connection structure according to claim 1, characterized in that: A sealing ring (5) is provided between the rear end of the first pipe (1) and the front end of the second pipe (2).

7. A pipe connection structure according to claim 1, characterized in that: The first connecting plate (101), the second connecting plate (201) and the tightening ring (3) are all covered with heat shrink tubing (6).

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