Large-diameter plastic-coated composite pipe connecting structure

Abstract

The utility model relates to the technical field of pipeline connection, in particular to a large -diameter plastic coated composite pipe connecting structure, and the clamp assembly extrudes sealing ring assembly while clamping one -off pipeline and two -off pipeline, thereby make sealing ring assembly seal the gap, including one -off pipeline, one -off groove, two -off pipeline and two -off groove, one -off pipeline is close to the place of two ports and is provided with a group of one -off groove respectively, two -off pipeline is close to the place of two ports and is provided with a group of two -off groove respectively, still include sealing ring assembly and clamp assembly, the first port of one -off pipeline and the first port of two -off pipeline contact, sealing ring assembly is sleeved in one -off pipeline and two -off pipeline outer side wall and seals the first port of one -off pipeline and two -off pipeline, and the clamp assembly is connected one -off pipeline and two -off pipeline through a group of one -off groove on one -off pipeline and a group of two -off groove on two -off pipeline respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe connection, and in particular to a connection structure for large-diameter plastic-coated composite pipes. Background Technology

[0002] As the diameter of pipes used in industrial applications increases, the weaknesses of steel pipe joint installation, such as complex processes, low efficiency, high construction costs, and numerous factors affecting joint quality, become more apparent. These weaknesses have become the most important factors restricting the development of steel pipe pipelines. Currently, the main types of steel pipe joints include threaded connections, flange connections, welded connections, and socket connections.

[0003] In the prior art, patent document CN212776083U discloses a connection structure for plastic-coated composite steel pipes, including a first pipe and a second pipe. Both ends of the first pipe are fixedly connected to a first connecting pipe, and both sides of the first pipe near the first connecting pipe are fixedly connected to a first insertion block. A movable rod is movably connected to the top of each first insertion block. Both ends of the second pipe are fixedly connected to a second connecting pipe, and one end of each second connecting pipe is fixedly connected to an insertion pipe. This utility model's connection structure for plastic-coated composite steel pipes can provide a double connection between the first and second pipes, with good fixing effect, improving the connectivity between the first and second pipes, and facilitating the disconnection of the first and second pipes, making disassembly relatively convenient.

[0004] During use, it was found that the above device inserts the second insertion block into the second groove, and then fixes the first insertion block inside the fixing block by combining the fixing bolt and the threaded hole. However, the above only connects the first pipe and the second pipe, but there is a gap between the first pipe and the second pipe, resulting in poor sealing. When the first pipe and the second pipe transport the medium, the medium leakage is likely to occur. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a large-diameter plastic-coated composite pipe connection structure that improves the sealing performance of the connection.

[0006] This utility model discloses a large-diameter plastic-coated composite pipe connection structure, comprising a first pipe, a first groove, a second pipe, and a second groove. The first pipe has a set of first grooves near its two ends, and the second pipe has a set of second grooves near its two ends. It also includes a sealing ring assembly and a clamp assembly. The first end of the first pipe contacts the first end of the second pipe. The sealing ring assembly is fitted onto the outer walls of the first and second pipes and seals their first ends. The clamp assembly secures the first and second pipes through the first grooves on the first pipe and the second grooves on the second pipe, respectively. Connection; In use, the sealing ring assembly is fitted onto the outer wall of pipe No. 1. Then, the first port of pipe No. 1 is brought into contact with the first port of pipe No. 2, with the centerlines of pipes No. 1 and No. 2 coinciding. The sealing ring assembly is then moved to seal the gap between the first ports of pipes No. 1 and No. 2. Subsequently, the clamp assembly engages pipes No. 1 and No. 2 while simultaneously compressing the sealing ring assembly, thus sealing the gap between the first ports of pipes No. 1 and No. 2. This prevents leakage when pipes No. 1 and No. 2 are used to transport the medium.

[0007] Preferably, the sealing ring assembly includes a sealing ring body and an annular groove, wherein the inner wall of the sealing ring body is provided with an annular groove; the outer walls of both the first and second pipes are in contact with the inner wall of the sealing ring body; when the clamp assembly clamps the first and second pipes together, the clamp assembly simultaneously deforms the sealing ring body under the cooperation of the annular groove, thereby sealing the gap between the first and second pipes, improving the sealing performance, and thus preventing media leakage when the first and second pipes are used to transport the medium.

[0008] Preferably, the clamp assembly includes a clamp body, clamp flanges, fixing seats, round holes, bolts, and nuts. The inner wall of the clamp body has two sets of clamp flanges, and the outer wall of the clamp body has a set of fixing seats symmetrically arranged. Each fixing seat has a set of round holes, and each set of round holes has a set of bolts threaded through it. The bolts are threadedly connected to a set of nuts. The sealing ring body is fitted onto the ends of pipes one and two. Then, the outer sides of the two clamp bodies are fitted onto the outer walls of pipes one and two. Each clamp body... The two sets of clamp flanges on the main body are inserted into one set of No. 1 groove and one set of No. 2 groove respectively. After the bolt passes through the overlapping round holes on the two sets of fixing seats, it is threaded with the nut, thus completing the connection of the two sets of clamp bodies. When the two sets of clamp bodies are inserted into the No. 1 groove and No. 2 groove to complete the connection and fixation of the No. 1 pipe and the No. 2 pipe, the two sets of clamp bodies compress and deform the sealing ring body, so as to achieve the sealing of the No. 1 pipe and the No. 2 pipe port by the sealing ring body, thereby improving the connection efficiency and the sealing performance.

[0009] Preferably, the clamp assembly further includes a positioning groove and a positioning rod. The first plane end of the clamp body is provided with a positioning groove, and the second plane end of the clamp body is provided with a positioning rod. The positioning groove and the positioning rod are adapted to each other. The two sets of clamp bodies are fitted onto the outer walls of the ports of pipe No. 1 and pipe No. 2. The positioning rod is inserted into the positioning groove to perform preliminary positioning of the two sets of clamp bodies, thereby improving the ease of installation.

[0010] Preferably, the sealing ring assembly further includes a first chamfer portion, and a set of first chamfer portions are respectively provided on the left and right sides of the inner sidewall of the sealing ring body; the sealing ring body can be quickly fitted onto the outer sidewall of the first or second pipe with the cooperation of the first chamfer portion, thereby improving installation efficiency.

[0011] Preferably, the outer wall of the hoop body is provided with an anti-rust coating; the anti-rust coating prevents the hoop body from rusting and improves the service life of the hoop body.

[0012] Preferably, the positioning rod is provided with a second chamfer; the positioning rod is quickly inserted into the positioning groove with the cooperation of the second chamfer, thereby improving installation efficiency.

[0013] Preferably, the clamp assembly further includes an annular flat washer, and the bolt is fitted with the annular flat washer; the nut, with the cooperation of the annular flat washer, increases the contact area with the fixing seat and improves the connection firmness.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the sealing ring assembly is fitted onto the outer wall of pipe No. 1, and then the first port of pipe No. 1 is brought into contact with the first port of pipe No. 2, with the center lines of pipe No. 1 and pipe No. 2 coinciding. Then, the sealing ring assembly is moved to seal the gap between the first ports of pipe No. 1 and pipe No. 2. Subsequently, the clamp assembly clamps pipe No. 1 and pipe No. 2 while squeezing the sealing ring assembly, thereby sealing the gap between the first ports of pipe No. 1 and pipe No. 2, thus preventing leakage when pipe No. 1 and pipe No. 2 are used to transport the medium. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of the hoop body and positioning rods, etc.

[0018] Figure 4 This is a cross-sectional structural diagram of the main body of the sealing ring;

[0019] Figure 5 It is a cross-sectional structural diagram of Pipeline No. 1 and Pipeline No. 2, etc.

[0020] The following markings are used in the attached diagram: 1. Pipe No. 1; 2. Groove No. 1; 3. Pipe No. 2; 4. Groove No. 2; 5. Sealing ring body; 6. Annular groove; 8. Hoop body; 10. Clamp flange; 11. Fixing seat; 12. Round hole; 13. Bolt; 14. Nut; 15. Positioning groove; 16. Positioning rod; 17. Chamfer No. 1; 20. Annular flat washer. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, the present invention discloses a large-diameter plastic-coated composite pipe connection structure, including a first pipe 1, a first groove 2, a second pipe 3, and a second groove 4. A set of first grooves 2 is respectively provided near the two ends of the first pipe 1, and a set of second grooves 4 is respectively provided near the two ends of the second pipe 3. It also includes a sealing ring assembly and a clamp assembly. The first end of the first pipe 1 is in contact with the first end of the second pipe 3. The sealing ring assembly is fitted onto the outer walls of the first pipe 1 and the second pipe 3 and seals the first ends of the first pipe 1 and the second pipe 3. The clamp assembly connects the first pipe 1 and the second pipe 3 through a set of first grooves 2 on the first pipe 1 and a set of second grooves 4 on the second pipe 3, respectively.

[0024] like Figure 2 and Figure 4 As shown, the sealing ring assembly includes a sealing ring body 5 and an annular groove 6, and the annular groove 6 is provided on the inner side wall of the sealing ring body 5.

[0025] In this embodiment, during use, the outer walls of both pipe 1 and pipe 3 are in contact with the inner wall of the sealing ring body 5. Then, the first port of pipe 1 is brought into contact with the first port of pipe 3, and the center lines of pipe 1 and pipe 3 coincide. Then, the sealing ring body 5 is moved so that it seals the gap between the first port of pipe 1 and the first port of pipe 3. Then, the clamp assembly clamps pipe 1 and pipe 3 while squeezing the sealing ring body 5, thereby sealing the gap between the first port of pipe 1 and the first port of pipe 3, thus preventing leakage when pipe 1 and pipe 3 are used to transport the medium.

[0026] Example 2

[0027] like Figures 1 to 5 As shown, the present invention discloses a large-diameter plastic-coated composite pipe connection structure, including a first pipe 1, a first groove 2, a second pipe 3, and a second groove 4. A set of first grooves 2 is respectively provided near the two ends of the first pipe 1, and a set of second grooves 4 is respectively provided near the two ends of the second pipe 3. It also includes a sealing ring assembly and a clamp assembly. The first end of the first pipe 1 is in contact with the first end of the second pipe 3. The sealing ring assembly is fitted onto the outer walls of the first pipe 1 and the second pipe 3 and seals the first ends of the first pipe 1 and the second pipe 3. The clamp assembly connects the first pipe 1 and the second pipe 3 through a set of first grooves 2 on the first pipe 1 and a set of second grooves 4 on the second pipe 3, respectively.

[0028] like Figure 2 and Figure 4 As shown, the sealing ring assembly includes a sealing ring body 5 and an annular groove 6, and the annular groove 6 is provided on the inner side wall of the sealing ring body 5.

[0029] like Figure 2 and Figure 3 As shown, the clamp assembly includes a clamp body 8, clamp flanges 10, fixing seats 11, round holes 12, bolts 13 and nuts 14. The inner side wall of the clamp body 8 is provided with two sets of clamp flanges 10, and the outer side wall of the clamp body 8 is symmetrically provided with a set of fixing seats 11. Each set of fixing seats 11 is provided with a set of round holes 12, and a set of bolts 13 are passed through each set of round holes 12. The bolts 13 are threadedly connected to a set of nuts 14.

[0030] The clamp assembly also includes a positioning groove 15, a positioning rod 16, a first chamfer 17, and an annular flat washer 20. The first plane end of the clamp body 8 is provided with a positioning groove 15, and the second plane end of the clamp body 8 is provided with a positioning rod 16. The positioning groove 15 is adapted to the positioning rod 16. A set of first chamfers 17 are provided on the left and right sides of the inner side wall of the sealing ring body 5. The outer side wall of the clamp body 8 is provided with an anti-rust coating. A second chamfer is provided on the positioning rod 16. The bolt 13 is fitted with an annular flat washer 20.

[0031] In this embodiment, during use, the outer walls of both pipe 1 and pipe 3 are in contact with the inner wall of the sealing ring body 5. Then, the first port of pipe 1 is brought into contact with the first port of pipe 3, aligning the centerlines of pipes 1 and 3. Next, the sealing ring body 5 is moved to seal the gap between the first ports of pipes 1 and 3. The sealing ring body 5 is fitted onto the ports of pipes 1 and 3. Finally, the outer sides of the two sets of clamp bodies 8 are fitted onto pipes 1 and 3. On the outer wall, the two sets of clamping flanges 10 on each set of hoop bodies 8 are respectively inserted into a set of first groove 2 and a set of second groove 4. The bolts 13 pass through the overlapping round holes 12 on the two sets of fixing seats 11 and are threadedly connected to the nuts 14, thereby completing the connection of the two sets of hoop bodies 8. When the two sets of hoop bodies 8 are inserted into the first groove 2 and the second groove 4 through the two sets of clamping flanges 10 to complete the connection and fixation of the first pipe 1 and the second pipe 3, the two sets of hoop bodies 8 squeeze and deform the sealing ring body 5 to achieve the sealing of the sealing ring body 5 at the port of the first pipe 1 and the second pipe 3.

[0032] The sealing ring body 5 of the large-diameter plastic-coated composite pipe connection structure of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A large-diameter plastic-coated composite pipe connection structure, comprising a first pipe (1), a first groove (2), a second pipe (3), and a second groove (4), wherein the first pipe (1) is provided with a set of first grooves (2) near its two ends, and the second pipe (3) is provided with a set of second grooves (4) near its two ends, characterized in that, It also includes a sealing ring assembly and a clamp assembly. The first port of the first pipe (1) contacts the first port of the second pipe (3). The sealing ring assembly is fitted on the outer wall of the first pipe (1) and the second pipe (3) and seals the first port of the first pipe (1) and the second pipe (3). The clamp assembly connects the first pipe (1) and the second pipe (3) through a set of first grooves (2) on the first pipe (1) and a set of second grooves (4) on the second pipe (3).

2. The large-diameter plastic-coated composite pipe connection structure as described in claim 1, characterized in that, The sealing ring assembly includes a sealing ring body (5) and an annular groove (6), wherein the inner sidewall of the sealing ring body (5) is provided with an annular groove (6).

3. The connection structure for a large-diameter plastic-coated composite pipe as described in claim 1, characterized in that, The clamp assembly includes a clamp body (8), clamp flanges (10), fixing seats (11), round holes (12), bolts (13) and nuts (14). The inner side wall of the clamp body (8) is provided with two sets of clamp flanges (10), and the outer side wall of the clamp body (8) is symmetrically provided with a set of fixing seats (11). Each set of fixing seats (11) is provided with a set of round holes (12), and each set of round holes (12) is provided with a set of bolts (13). The bolts (13) are threadedly connected to a set of nuts (14).

4. The large-diameter plastic-coated composite pipe connection structure as described in claim 3, characterized in that, The clamp assembly also includes a positioning groove (15) and a positioning rod (16). The first plane end of the clamp body (8) is provided with a positioning groove (15), and the second plane end of the clamp body (8) is provided with a positioning rod (16). The positioning groove (15) and the positioning rod (16) are adapted to each other.

5. The connection structure for a large-diameter plastic-coated composite pipe as described in claim 2, characterized in that, The sealing ring assembly also includes a first chamfer (17), and a set of first chamfers (17) are respectively provided on the left and right sides of the inner sidewall of the sealing ring body (5).

6. The connection structure for a large-diameter plastic-coated composite pipe as described in claim 3, characterized in that, The outer wall of the hoop body (8) is provided with an anti-rust coating.

7. The large-diameter plastic-coated composite pipe connection structure as described in claim 4, characterized in that, The positioning rod (16) is provided with a second chamfer.

8. The large-diameter plastic-coated composite pipe connection structure as described in claim 3, characterized in that, The clamp assembly also includes an annular flat washer (20), and the bolt (13) is fitted with the annular flat washer (20).

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