Double-walled corrugated pipe with high corrosion resistance

Abstract

The utility model relates to double -walled bellows technical field discloses high corrosion -resistant double -walled bellows, including the pipe body, the outside of pipe body is provided with the outer anticorrosive coating, the inside of pipe body is provided with the inner tube, the inside of pipe body is provided with the locating groove, the lateral fixed positioning strip of inner tube's outside. This high corrosion -resistant double -walled bellows uses, the outer anticorrosive coating has been sprayed and processed to the outside of pipe body, adopts the outer anticorrosive coating of polyurethane material, can strengthen the corrosion -resistant performance of pipe body outside, and simultaneously, the inner tube is inserted and is installed to the inside of pipe body, utilizes the double -layer structure setting of inner tube, not only can improve the corrosion -resistant performance of pipe body inside, can assist the reinforcement of the overall structure in the pipe body inside simultaneously, and high corrosion -resistant performance has when double -walled bellows installation uses, solves the problem that the corrosion -resistant performance and the strength of double -walled bellows inside and outside structure are limited.

Description

Technical Field

[0001] This utility model relates to the field of double-wall corrugated pipe technology, specifically to a double-wall corrugated pipe with high corrosion resistance. Background Technology

[0002] Double-wall corrugated pipe is a new type of pipe with an annular outer wall and a smooth inner wall. It is mainly made of high-density polyethylene and has many advantages such as light weight, fast construction, low drainage resistance, and long service life. It is widely used in water supply, drainage, sewage, exhaust, subway ventilation and other fields.

[0003] However, in actual installation and use, the inner side of double-wall corrugated pipes is generally a single-layer pipe structure. In some highly corrosive and harsh environments, the corrosion resistance and pipe strength are limited and have shortcomings.

[0004] Now, a novel double-wall corrugated pipe with high corrosion resistance is proposed to address the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a double-walled corrugated pipe with high corrosion resistance, in order to solve the problems of limited corrosion resistance and strength of the inner and outer structures of the double-walled corrugated pipe mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-walled corrugated pipe with high corrosion resistance, comprising a pipe body, an external anti-corrosion coating on the outer side of the pipe body, an inner tube inside the pipe body, a positioning groove on the inner side of the pipe body, and a positioning strip horizontally fixed on the outer side of the inner tube.

[0007] As a further technical solution of this utility model, the inner tube penetrates the interior of the tube body, and the inner tube is a high-density polyethylene component.

[0008] As a further technical solution of this utility model, the positioning groove is provided in six sets at equal intervals in a ring on the inner side of the tube, and the positioning strip is fixed in multiple sets at equal intervals in a ring on the outer side of the inner tube, and the positioning strip is inserted into the inside of the positioning groove.

[0009] As a further technical solution of this utility model, a support 2 is provided on the left side of the top of the pipe body, a support 3 is provided at the middle position of the top of the pipe body, a support 4 is provided on the right side of the top of the pipe body, a support 5 is provided on the right side of the bottom of the pipe body, a support 6 is provided at the middle position of the bottom of the pipe body, and a support 1 is provided on the left side of the bottom of the pipe body. Support rod 1 is vertically fixed at both ends between support 1 and support 2, support rod 2 is vertically fixed at both ends between support 3 and support 6, support rod 3 is vertically fixed at both ends between support 4 and support 5, a crossbar 1 is horizontally fixed between support 2 and support 3, a crossbar 2 is horizontally fixed between support 3 and support 4, a crossbar 4 is horizontally fixed between support 1 and support 6, and a crossbar 3 is horizontally fixed between support 6 and support 5.

[0010] As a further technical solution of this utility model, the first crossbar is fixed in three sets at equal intervals between the second and third supports, the second crossbar is arranged in multiple sets at equal intervals between the third and fourth supports, the third crossbar is arranged in three sets at equal intervals between the fifth and sixth supports, and the fourth crossbar is arranged in three sets at equal intervals between the sixth and first supports.

[0011] As a further technical solution of this utility model, upper mounting holes are respectively opened in the interior of both ends of the second, third and fourth supports, and lower mounting holes are respectively provided in the interior of both ends of the fifth, sixth and first supports. An outer cover is provided on the outside of the tube body, and upper mounting bolts are respectively provided at the top of both ends of the outer cover, and lower mounting bolts are respectively provided at the bottom of both ends of the outer cover.

[0012] As a further technical solution of this utility model, the upper mounting bolts are provided in three sets at equal intervals at the top of both ends of the outer cover, and the lower mounting bolts are provided in three sets at equal intervals at the bottom of both ends of the outer cover.

[0013] As a further technical solution of this utility model, the upper mounting bolt passes through the interior of the outer cover and is threadedly rotatably connected to the upper mounting hole, and the lower mounting bolt passes through the interior of the outer cover and is threadedly rotatably connected to the lower mounting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the high corrosion resistance double-wall corrugated pipe not only achieves high corrosion resistance and facilitates pressure protection on the outside of the double-wall corrugated pipe, but also facilitates auxiliary dust prevention on the outside of the double-wall corrugated pipe.

[0015] By incorporating a pipe body, an external anti-corrosion coating, an inner pipe, positioning grooves, and positioning strips, the double-wall corrugated pipe has an external anti-corrosion coating sprayed on the outside of the pipe body to enhance its corrosion resistance. At the same time, an inner pipe is inserted and installed on the inside of the pipe body. The double-layer structure of the inner pipe not only improves the corrosion resistance of the inner side of the pipe body but also provides auxiliary reinforcement to the overall internal structure of the pipe body. The double-wall corrugated pipe has high corrosion resistance when installed and used.

[0016] By setting up a pipe body, support one, support rod one, support two, crossbar one, support rod two, support three, crossbar two, support four, support rod three, support five, crossbar three, support six and crossbar four, when the double-wall corrugated pipe is installed and used, an outer frame structure composed of support two, support three, support four, support five, support six and support one is installed on the outside of the pipe body. This can provide auxiliary support for the outer structure of the corrugated pipe, resist pressure protection, and reduce structural deformation damage to the pipe body.

[0017] The double-wall corrugated pipe is equipped with a pipe body, upper mounting holes, lower mounting holes, an outer cover, upper mounting bolts, and lower mounting bolts. During the installation process, the outer cover is fixed on the outside of support 2, support 3, support 4, support 5, support 6, and support 1 using upper and lower mounting bolts. The outer cover can be used to provide auxiliary sealing and dust prevention for the outside of the pipe body. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a side view of the inner tube structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0021] Figure 4 This is a schematic diagram of the support structure of this utility model from a top view.

[0022] In the diagram: 1. Support 1; 2. Pipe body; 3. External anti-corrosion coating; 4. Support rod 1; 5. Support 2; 6. Horizontal bar 1; 7. Support rod 2; 8. Support 3; 9. Horizontal bar 2; 10. Support 4; 11. Upper mounting hole; 12. Support rod 3; 13. Support 5; 14. Horizontal bar 3; 15. Support 6; 16. Horizontal bar 4; 17. Upper mounting bolt; 18. Outer cover; 19. Inner pipe; 20. Lower mounting bolt; 21. Positioning groove; 22. Positioning strip; 23. Lower mounting hole. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides an embodiment of a double-wall corrugated pipe with high corrosion resistance, including a pipe body 2, an external anti-corrosion coating 3 on the outside of the pipe body 2, an inner tube 19 inside the pipe body 2, a positioning groove 21 on the inside of the pipe body 2, a positioning strip 22 fixed laterally on the outside of the inner tube 19, the inner tube 19 penetrating the inside of the pipe body 2, the inner tube 19 being a high-density polyethylene component, six sets of positioning grooves 21 are arranged in a ring at equal intervals on the inside of the pipe body 2, and multiple sets of positioning strips 22 are fixed in a ring at equal intervals on the outside of the inner tube 19, the positioning strips 22 being inserted into the inside of the positioning grooves 21;

[0025] Specifically, such as Figure 1 and Figure 2 As shown, an external anti-corrosion coating 3 is sprayed on the outside of the pipe body 2. The external anti-corrosion coating 3 made of polyurethane can enhance the corrosion resistance of the outside of the pipe body 2. At the same time, an inner tube 19 is inserted and installed on the inside of the pipe body 2. The double-layer structure of the inner tube 19 can not only improve the corrosion resistance of the inside of the pipe body 2, but also help strengthen the overall internal structure of the pipe body 2, thus possessing high corrosion resistance.

[0026] Support 2 5 is provided on the left side of the top of pipe body 2, support 3 8 is provided at the middle position of the top of pipe body 2, support 4 10 is provided on the right side of the top of pipe body 2, support 5 13 is provided on the right side of the bottom of pipe body 2, support 6 15 is provided at the middle position of the bottom of pipe body 2, support 1 1 is provided on the left side of the bottom of pipe body 2, support 1 4 is vertically fixed at both ends between support 1 1 and support 2 5, support 2 7 is vertically fixed at both ends between support 3 8 and support 6 15, support 3 12 is vertically fixed at both ends between support 4 10 and support 5 13, crossbar 1 6 is horizontally fixed between support 2 5 and support 3 8, crossbar 2 9 is horizontally fixed between support 3 8 and support 4 10, crossbar 4 16 is horizontally fixed between support 1 1 and support 6 15, and crossbar 3 14 is horizontally fixed between support 6 15 and support 5 13.

[0027] There are three sets of horizontal bars 16 fixed at equal intervals between support 25 and support 38; there are multiple sets of horizontal bars 29 at equal intervals between support 38 and support 410; there are three sets of horizontal bars 314 at equal intervals between support 513 and support 615; and there are three sets of horizontal bars 416 at equal intervals between support 615 and support 11.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, an outer frame structure consisting of support 2 5, support 3 8, support 4 10, support 5 13, support 6 15 and support 1 is installed on the outside of the pipe body 2. This structure can support the outer structure of the corrugated pipe and provide auxiliary pressure protection.

[0029] The interior of supports 2 (5), 3 (8) and 4 (10) is provided with upper mounting holes 11 at both ends. The interior of supports 5 (13), 6 (15) and 1 (1) is provided with lower mounting holes 23 at both ends. The outer side of the tube body 2 is provided with an outer cover 18. The top of both ends of the outer cover 18 is provided with upper mounting bolts 17, and the bottom of both ends of the outer cover 18 is provided with lower mounting bolts 20.

[0030] Three sets of upper mounting bolts 17 are equally spaced at the top of both ends of the outer cover 18, and three sets of lower mounting bolts 20 are equally spaced at the bottom of both ends of the outer cover 18. The upper mounting bolts 17 penetrate the interior of the outer cover 18 and are threadedly rotatably connected to the upper mounting hole 11, and the lower mounting bolts 20 penetrate the interior of the outer cover 18 and are threadedly rotatably connected to the lower mounting hole 23.

[0031] Specifically, such as Figure 1 and Figure 4 As shown, during the installation of the double-wall corrugated pipe, an outer cover 18 is installed and fixed on the outside of support 2 5, support 3 8, support 4 10, support 5 13, support 6 15 and support 1 1 using upper mounting bolts 17 and lower mounting bolts 20. The outer cover 18 can be used to provide auxiliary sealing and dust prevention for the outside of the pipe body 2.

[0032] Working Principle: In use, an external anti-corrosion coating 3 is sprayed onto the outside of the pipe body 2, which enhances the corrosion resistance of the outside of the pipe body 2. At the same time, an inner tube 19 is inserted and installed on the inside of the pipe body 2. The double-layer structure of the inner tube 19 not only improves the corrosion resistance of the inside of the pipe body 2, but also strengthens the overall internal structure of the pipe body 2, resulting in high corrosion resistance. During the installation and use of the double-wall corrugated pipe, an outer frame structure composed of support 2 5, support 3 8, support 4 10, support 5 13, support 6 15 and support 1 is installed on the outside of the pipe body 2, which provides auxiliary support and pressure protection for the outer structure of the corrugated pipe. During the installation of the double-wall corrugated pipe, an outer cover 18 is installed and fixed on the outside of support 2 5, support 3 8, support 4 10, support 5 13, support 6 15 and support 1 using upper mounting bolts 17 and lower mounting bolts 20, which can provide auxiliary sealing and dust prevention for the outside of the pipe body 2.

[0033] 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 double-walled corrugated pipe with high corrosion resistance, comprising a pipe body (2), characterized in that: The outer side of the pipe body (2) is provided with an external anti-corrosion coating (3), the inner side of the pipe body (2) is provided with an inner tube (19), the inner side of the pipe body (2) is provided with a positioning groove (21), and the outer side of the inner tube (19) is horizontally fixed with a positioning strip (22).

2. The double-wall corrugated pipe with high corrosion resistance according to claim 1, characterized in that: The inner tube (19) penetrates the interior of the tube body (2), and the inner tube (19) is a high-density polyethylene component.

3. The double-wall corrugated pipe with high corrosion resistance according to claim 1, characterized in that: The positioning groove (21) is provided in six sets at equal intervals in a ring on the inner side of the tube body (2), and the positioning strip (22) is fixed in multiple sets at equal intervals in a ring on the outer side of the inner tube (19). The positioning strip (22) is inserted into the inside of the positioning groove (21).

4. The double-wall corrugated pipe with high corrosion resistance according to claim 1, characterized in that: A support 2 (5) is provided on the left side of the top of the tube (2), a support 3 (8) is provided at the middle position of the top of the tube (2), a support 4 (10) is provided on the right side of the top of the tube (2), a support 5 (13) is provided on the right side of the bottom of the tube (2), a support 6 (15) is provided at the middle position of the bottom of the tube (2), a support 1 (1) is provided on the left side of the bottom of the tube (2), and a support rod 1 (4) is vertically fixed at both ends between the support 1 (1) and the support 2 (5), and the support 3 (8) and Support rod 2 (7) is vertically fixed at both ends between support 6 (15), support rod 3 (12) is vertically fixed at both ends between support 4 (10) and support 5 (13), crossbar 1 (6) is horizontally fixed between support 2 (5) and support 3 (8), crossbar 2 (9) is horizontally fixed between support 3 (8) and support 4 (10), crossbar 4 (16) is horizontally fixed between support 1 (1) and support 6 (15), and crossbar 3 (14) is horizontally fixed between support 6 (15) and support 5 (13).

5. The double-wall corrugated pipe with high corrosion resistance according to claim 4, characterized in that: The first crossbar (6) is fixed in three sets at equal intervals between the second support (5) and the third support (8). The second crossbar (9) is set in multiple sets at equal intervals between the third support (8) and the fourth support (10). The third crossbar (14) is set in three sets at equal intervals between the fifth support (13) and the sixth support (15). The fourth crossbar (16) is set in three sets at equal intervals between the sixth support (15) and the first support (1).

6. The double-wall corrugated pipe with high corrosion resistance according to claim 4, characterized in that: The supports 2 (5), 3 (8) and 4 (10) are provided with upper mounting holes (11) at both ends, the supports 5 (13), 6 (15) and 1 (1) are provided with lower mounting holes (23) at both ends, the tube body (2) is provided with an outer cover (18), the top of the outer cover (18) is provided with upper mounting bolts (17), and the bottom of the outer cover (18) is provided with lower mounting bolts (20).

7. The double-wall corrugated pipe with high corrosion resistance according to claim 6, characterized in that: The upper mounting bolts (17) are provided in three sets at equal intervals at the top of both ends of the outer cover (18), and the lower mounting bolts (20) are provided in three sets at equal intervals at the bottom of both ends of the outer cover (18).

8. The double-wall corrugated pipe with high corrosion resistance according to claim 6, characterized in that: The upper mounting bolt (17) passes through the interior of the outer cover (18) and is threadedly rotatably connected in the upper mounting hole (11), and the lower mounting bolt (20) passes through the interior of the outer cover (18) and is threadedly rotatably connected in the lower mounting hole (23).

Images