Quick connecting structure of petroleum conveying pipeline

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a quick connection structure of an oil delivery pipeline, which comprises a connecting pipe, a connecting mechanism is arranged on the connecting pipe, the oil delivery pipeline is embedded between an inner pipe and an outer pipe, and a nut is further rotated to move towards the oil delivery pipeline, so that the oil delivery pipeline is quickly connected. According to the petroleum conveying pipeline sealing device, the special-shaped seat and the sealing ring are benefited, and when the nut is rotated, the pressure of the sealing ring on the petroleum conveying pipeline is gradually increased until the effect of connecting the petroleum conveying pipelines at the two ends is achieved; and the second rubber buckle is further connected with the first rubber buckle through the fastening bolt to form a closed ring, so that the petroleum conveying pipelines can be fixed, connection between the petroleum conveying pipelines on the two sides is more stable, and the problem of petroleum leakage caused by shaking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a quick connection structure for an oil delivery pipeline. Background Art

[0002] The quick-connect structure of the oil pipeline can complete the connection and disconnection operations of the oil pipeline in a short time. This is particularly important during the drilling or production process. It can greatly save time and manpower. It is simple and easy to operate, and can complete the connection and disconnection operations in a short time, thereby improving work efficiency.

[0003] A Chinese patent application, with publication number CN218510394U, provides a quick-connect structure suitable for oil pipelines. The structure comprises an upper pipe fitting connected to an external pipeline, with a flanged end and a dynamic locking ring mounted on the outer surface of the upper pipe fitting to cooperate with the flanged end. The dynamic locking ring has multiple arc-shaped through-holes formed on its upper surface. The structure also comprises a lower pipe fitting connected to equipment, with a static locking ring mounted on the outer wall of the lower pipe fitting to cooperate with both the dynamic locking ring and the flanged end. A sealing ring is provided between the lower pipe fitting and the upper pipe fitting. The static locking ring is mounted on multiple locking bolt pairs corresponding to the arc-shaped through-holes. One end of each locking bolt pair is detachably fixed to the static locking ring, while the other end of each locking bolt pair engages the arc-shaped through-hole. The dynamic locking ring rotates about the axis of the upper pipe fitting to change the engagement relationship between the locking bolt pairs and the arc-shaped through-holes. This allows for simultaneous installation of multiple fasteners when connecting an external pipeline to equipment, resulting in a well-sealed connection, convenient installation, and improved work efficiency.

[0004] The above structure has the effect of enabling the simultaneous installation of multiple fasteners when connecting external pipelines to equipment. However, in actual application, the distance between the two oil pipelines is strictly controlled. If the distance is large, it is difficult to connect them through the existing connection structure. At the same time, the existing structure is only fixed from the outside of the pipeline, and there is a risk of oil leakage when shaking. Therefore, it is necessary to provide a quick connection structure for the oil pipeline. Utility Model Content

[0005] The purpose of the utility model is to provide a quick connection structure for oil pipelines to solve the problem that when the existing structure is used to quickly connect the oil pipelines, the pipelines on both sides cannot be butt-jointed due to the error in the spacing between the oil pipelines on both sides, and the existing structure causes oil leakage.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a quick connection structure for an oil pipeline, comprising a connecting pipe, on which a connecting mechanism is provided; the connecting mechanism comprises two inner pipes, the two inner pipes being fixedly mounted at inner positions at both ends of the connecting pipe, and a plurality of special-shaped plates being fixedly mounted inside the two inner pipes and the connecting pipe, outer pipes being fixedly mounted on the outer sides of both ends of the connecting pipe, a plurality of sealing rings being fixedly mounted in parallel on the inner side of the outer pipe and the outer side of the inner pipe, and a nut being mounted on the external thread of the outer pipe.

[0007] Preferably, the shape of the special-shaped plate is trapezoidal, and a plurality of special-shaped plate arrays are distributed on the inner walls of the two inner tubes and the connecting tube.

[0008] Preferably, the plurality of sealing rings are composed of rubber rings of different ring widths, and the width of the rubber rings gradually increases away from the connecting pipe.

[0009] Preferably, a fixing mechanism is provided on the outside of the connecting tube, and the fixing mechanism includes two first swivel seats, and the two first swivel seats are fixedly installed on both sides of the connecting tube respectively, and a connecting rod is rotatably installed on the two first swivel seats, and one end of the connecting rod is rotatably installed on the second swivel seat, and a No. 1 rubber buckle is fixedly installed on the second swivel seat, and a fastening bolt is rotatably installed on one end of the No. 1 rubber buckle, and a fastening seat is threadedly installed on the fastening bolt, and a No. 2 rubber buckle is rotatably installed on the other end of the No. 1 rubber buckle, and one end of the No. 2 rubber buckle is fixedly installed on the buckle seat.

[0010] Preferably, arc-shaped grooves are provided in parallel inside the No. 1 rubber buckle and the No. 2 rubber buckle, and the fastening bolts are adapted to the buckle seats.

[0011] Preferably, the first rotating seats on both sides are oriented in opposite directions, and the No. 1 rubber buckle matches the size of the outer tube.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1) This quick-connect structure for oil pipelines embeds the oil pipeline between the inner and outer tubes, and further rotates the nut to move it toward the oil pipeline. Thanks to the special-shaped seat and sealing ring, as the nut is rotated, the pressure of the sealing ring on the oil pipeline gradually increases until the oil pipelines at both ends are connected. This solves the problem of inconvenient connection caused by the unstable spacing between the oil pipelines on both sides, while providing a better sealing effect and making the structure more practical.

[0014] 2) This quick-connect structure for oil pipelines secures the oil pipeline by controlling the connecting rod to fit the No. 1 rubber buckle onto the oil pipeline. The No. 2 rubber buckle is then connected to the No. 1 rubber buckle via a fastening bolt to form a closed loop. This stabilizes the oil pipeline connection and prevents oil leakage caused by shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a quick connection structure for an oil pipeline in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the connecting mechanism in an embodiment of the present utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the connecting pipe in an embodiment of the present utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing mechanism in the embodiment of the utility model.

[0019] In the figure: 1. Connecting pipe; 2. Connecting mechanism; 201. Inner pipe; 202. Special-shaped plate; 203. Outer pipe; 204. Sealing ring; 205. Nut; 3. Fixing mechanism; 301. First swivel seat; 302. Connecting rod; 303. Second swivel seat; 304. No. 1 rubber buckle; 305. Fastening bolt; 306. Fastening seat; 307. No. 2 rubber buckle; 308. Buckle seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] Combine Figures 1-4 A quick connection structure for an oil pipeline includes a connecting pipe 1, on which a connecting mechanism 2 is provided; the connecting mechanism 2 includes two inner pipes 201, which are fixedly installed at the inner sides of both ends of the connecting pipe 1, and a number of special-shaped plates 202 are fixedly installed inside the two inner pipes 201 and the connecting pipe 1, an outer pipe 203 is fixedly installed on the outer sides of both ends of the connecting pipe 1, a number of sealing rings 204 are fixedly installed in parallel on the inner side of the outer pipe 203 and the outer side of the inner pipe 201, and a nut 205 is installed on the external thread of the outer pipe 203.

[0023] like Figure 2 and Figure 3 As shown, it is further obtained that the shape of the special-shaped plate 202 is trapezoidal, and a plurality of special-shaped plates 202 are distributed in an array at the inner wall positions of the two inner tubes 201 and the connecting tube 1, and a plurality of sealing rings 204 are composed of rubber rings of different ring widths, and the width of the rubber ring gradually increases away from the connecting tube 1.

[0024] Specifically, by embedding the oil pipeline between the inner tube 201 and the outer tube 203, and further rotating the nut 205 to move the nut 205 toward the oil pipeline, since the special-shaped plate 202 is fixed to the two inner tubes 201 and the inner wall of the connecting pipe 1, and the ring widths of the plurality of sealing rings 204 gradually increase away from the connecting pipe 1, when the nut 205 is rotated, the pressure of the sealing rings 204 on the oil pipeline will gradually increase until the effect of connecting the oil pipelines at both ends is achieved.

[0025] Example 2

[0026] Combine Figure 1 and Figure 4 A fixing mechanism 3 is provided on the outside of the connecting tube 1, and the fixing mechanism 3 includes two first rotating seats 301, and the two first rotating seats 301 are respectively fixedly installed on both sides of the connecting tube 1, and a connecting rod 302 is rotatably installed on the two first rotating seats 301, and a second rotating seat 303 is rotatably installed on one end of the connecting rod 302, and a No. 1 rubber buckle 304 is fixedly installed on the second rotating seat 303, and a fastening bolt 305 is rotatably installed on one end of the No. 1 rubber buckle 304, and a fastening seat 306 is threadedly installed on the fastening bolt 305, and a No. 2 rubber buckle 307 is rotatably installed on the other end of the No. 1 rubber buckle 304, and a buckle seat 308 is fixedly installed on one end of the No. 2 rubber buckle 307.

[0027] See Figure 4 On the basis of Example 1, it is further obtained that arc grooves are opened in parallel inside the No. 1 rubber buckle 304 and the No. 2 rubber buckle 307, the fastening bolt 305 is adapted to the buckle seat 308, the first rotating seats 301 on both sides are oriented in opposite directions, and the No. 1 rubber buckle 304 matches the size of the outer tube 203.

[0028] Specifically, after the oil pipelines on both sides are connected, the No. 1 rubber buckle 304 is made to fit the oil pipeline by controlling the connecting rod 302, and the No. 2 rubber buckle 307 is further connected to the No. 1 rubber buckle 304 through the fastening bolt 305 to form a closed loop, thereby achieving the fixation of the oil pipeline. When in use, the fastening seat 306 plays a fastening role, making the No. 1 rubber buckle 304 and the No. 2 rubber buckle 307 more firmly fixed to the oil pipeline.

[0029] In actual operation, the oil pipeline is embedded between the inner tube 201 and the outer tube 203, and the nut 205 is further rotated to move the nut 205 toward the oil pipeline. Since the special-shaped plate 202 is fixed to the inner walls of the two inner tubes 201 and the connecting tube 1, and the ring widths of the sealing rings 204 gradually increase away from the connecting tube 1, when the nut 205 is rotated, the pressure of the sealing rings 204 on the oil pipeline will gradually increase until the effect of connecting the oil pipelines at both ends is achieved.

[0030] By controlling the connecting rod 302 to make the No. 1 rubber buckle 304 fit the oil pipeline, and further connecting the No. 2 rubber buckle 307 to the No. 1 rubber buckle 304 through the fastening bolt 305 to form a closed loop, the oil pipeline can be fixed. When in use, the fastening seat 306 plays a fastening role, making the No. 1 rubber buckle 304 and the No. 2 rubber buckle 307 more firmly fixed to the oil pipeline.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick connection structure for an oil pipeline, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is provided with a connecting mechanism (2); The connecting mechanism (2) comprises two inner tubes (201), the two inner tubes (201) being fixedly mounted at inner positions at both ends of the connecting tube (1), and a plurality of special-shaped plates (202) being fixedly mounted inside the two inner tubes (201) and the connecting tube (1), an outer tube (203) being fixedly mounted on the outer sides of both ends of the connecting tube (1), a plurality of sealing rings (204) being fixedly mounted in parallel on the inner sides of the outer tubes (203) and the outer sides of the inner tubes (201), and a nut (205) being mounted on the outer threads of the outer tube (203).

2. A quick connection structure for an oil pipeline according to claim 1, characterized in that: The shape of the special-shaped plate (202) is trapezoidal, and a plurality of the special-shaped plates (202) are distributed in an array at the inner wall positions of the two inner tubes (201) and the connecting tube (1).

3. The quick connection structure for an oil pipeline according to claim 2, characterized in that: The plurality of sealing rings (204) are composed of rubber rings of different ring widths, and the width of the rubber rings gradually increases away from the connecting pipe (1).

4. A quick connection structure for an oil pipeline according to claim 3, characterized in that: The connecting tube (1) is provided with a fixing mechanism (3) on the outside thereof. The fixing mechanism (3) comprises two first rotating seats (301), the two first rotating seats (301) being fixedly mounted on both sides of the connecting tube (1), and the two first rotating seats (301) are both rotatably mounted with a connecting rod (302), one end of the connecting rod (302) being rotatably mounted with a second rotating seat (303), a No. 1 rubber buckle (304) being fixedly mounted on the second rotating seat (303), one end of the No. 1 rubber buckle (304) being rotatably mounted with a fastening bolt (305), a fastening seat (306) being threadedly mounted on the fastening bolt (305), a No. 2 rubber buckle (307) being rotatably mounted on the other end of the No. 1 rubber buckle (304), and a buckle seat (308) being fixedly mounted on one end of the No. 2 rubber buckle (307).

5. The quick connection structure for an oil pipeline according to claim 4, characterized in that: The interiors of the No. 1 rubber buckle (304) and the No. 2 rubber buckle (307) are both provided with arc-shaped grooves in parallel, and the fastening bolt (305) is adapted to the buckle seat (308).

6. The quick connection structure for an oil pipeline according to claim 5, characterized in that: The first rotating seats (301) on both sides face in opposite directions, and the size of the No. 1 rubber buckle (304) matches that of the outer tube (203).

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