Special large-diameter triple-corrosion-resistant plastic-coated steel pipe

Abstract

The utility model discloses a special large-caliber triple anti-corrosion plastic-coated steel pipe, which relates to the technical field of plastic-coated steel pipes, and comprises a steel pipe body, a reinforcing rib, a mounting hole and a connecting mechanism, the connecting mechanism comprises a connecting sleeve, a sealing gasket is mounted in the middle of the inner wall of the connecting sleeve, and the inner wall of the connecting sleeve is provided with an anti-corrosion layer. A plurality of connecting grooves movably connected with the reinforcing ribs are formed in the two ends of the inner wall of the connecting sleeve, and fastening bolts are arranged between the two ends of the inner wall of the top of the connecting sleeve and the inner wall of the adjacent steel pipe body. The pipe body has a good anti-corrosion effect through the inner anti-corrosion coating and the outer anti-corrosion coating, the wear-resistant layer can further protect the pipe body, the reinforcing ribs can reinforce the structure of the steel pipe body, and the connecting sleeve can be rapidly connected to the outer side of the steel pipe body in a sleeving mode through connection between the connecting grooves and the reinforcing ribs. And fastening bolts penetrate through the fixing holes and are in threaded connection with the inner walls of the adjacent mounting holes, so that the two steel pipe bodies can be stably spliced by the connecting sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel pipes, in particular to a large-diameter special-purpose triple-anticorrosive plastic-coated steel pipe. Background Art

[0002] Large diameter plastic coated steel pipes are generally used in municipal and major building water supply and drainage. The outer wall is coated with high adhesion, impact resistance, anti-corrosion and weather-resistant thermosetting powder coatings, and the inner wall is coated with high adhesion and anti-corrosion thermoplastic powder coatings. It is made by sandblasting chemical double pre-treatment, preheating, internal coating, external coating, curing, post-treatment and other processes.

[0003] The prior art has the following deficiencies: the existing large-diameter plastic-coated steel pipe lacks a quick connection structure during use, so that two adjacent steel pipes cannot be quickly spliced ​​together, making the connection between the two steel pipes prone to loosening and leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a large-diameter special triple anti-corrosion plastic-coated steel pipe. The structure of the steel pipe body can be reinforced by reinforcing ribs. The connection between the connecting groove and the reinforcing ribs allows the connecting sleeve to be quickly sleeved onto the outside of the steel pipe body. The fastening bolts pass through the fixing holes and are threadedly connected to the inner walls of the adjacent mounting holes, so that the connecting sleeve can stably splice the two steel pipe bodies to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-diameter special triple anti-corrosion plastic-coated steel pipe, including a steel pipe body, and also including:

[0006] The reinforcing ribs are arranged on the outside of the steel pipe body and are used to reinforce the structure of the steel pipe body;

[0007] There are two mounting holes, which are respectively arranged on the inner walls of the top two ends of the steel pipe body;

[0008] The connecting mechanism is arranged outside the two ends of the steel pipe body and is used to connect and fix the steel pipe body;

[0009] The connecting mechanism includes a connecting sleeve, a sealing gasket is fixedly installed at the middle position of the inner wall of the connecting sleeve, multiple connecting grooves are opened at both ends of the inner wall of the connecting sleeve, and the multiple connecting grooves at the same end are movably connected to the outer walls of one end of multiple reinforcing ribs respectively, and fixing holes are opened at both ends of the top inner wall of the connecting sleeve, and fastening bolts are arranged between the inner wall of the fixing hole and the adjacent mounting hole.

[0010] Preferably, the steel pipe body comprises a pipe body, the inner wall of the pipe body is provided with an inner anti-corrosion coating, the outer wall of the pipe body is provided with an outer anti-corrosion coating, and the outer side of the outer anti-corrosion coating is provided with a wear-resistant layer.

[0011] Preferably, the inner anti-corrosion coating is set to polyethylene material, the outer anti-corrosion coating is set to epoxy resin material, and the wear-resistant layer is set to polyurethane material.

[0012] Preferably, six reinforcing ribs are provided, and the six reinforcing ribs are fixedly installed in a ring shape with equal intervals on the outside of the steel pipe body, and the left-view vertical section of the reinforcing ribs and the connecting grooves are both arranged as a rectangular structure.

[0013] Preferably, the inner diameter of the connecting sleeve is the same as the outer diameter of the steel pipe body, and the inner diameter of the steel pipe body is the same as the inner diameter of the sealing gasket.

[0014] Preferably, the diameter of the mounting hole is the same as the diameter of the fixing hole, and the outer wall of the fastening bolt is threadedly connected to the inner wall of the adjacent mounting hole and the fixing hole.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The inner and outer anti-corrosion coatings make the pipe body have a good anti-corrosion effect. At the same time, the wear-resistant layer can further protect the pipe body, making the steel pipe body more adaptable. The reinforcing ribs can also reinforce the structure of the steel pipe body, which can increase the service life of the steel pipe body. At the same time, through the connection between the connecting groove and the reinforcing ribs, the connecting sleeve can be quickly sleeved to the outside of the steel pipe body, and the fastening bolts are used to penetrate the fixing holes and are threadedly connected to the inner wall of the adjacent installation holes, so that the connecting sleeve can stably splice the two steel pipe bodies, making the splicing of the steel pipe bodies more convenient;

[0017] By setting the sealing gasket, the connection position between two adjacent steel pipe bodies can be sealed, so that the connection between the connecting sleeve and the steel pipe body is tighter, and movement and leakage of the two steel pipe bodies during the splicing process can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a front vertical sectional view of the utility model.

[0021] Figure 3It is a three-dimensional structural diagram of the steel pipe body of the utility model.

[0022] Figure 4 This is a diagram showing the internal structure of the steel pipe body of the present utility model.

[0023] Figure 5 It is an exploded view of the three-dimensional structure of the connecting mechanism of the utility model.

[0024] Description of reference numerals:

[0025] 1. Steel pipe body; 101. Pipe body; 102. Inner anti-corrosion coating; 103. Outer anti-corrosion coating; 104. Wear-resistant layer;

[0026] 2. Strengthen the ribs;

[0027] 3. Mounting holes;

[0028] 4. Connecting mechanism; 401. Connecting sleeve; 402. Sealing gasket; 403. Connecting groove; 404. Fixing hole; 405. Fastening bolt. DETAILED DESCRIPTION

[0029] The utility model provides Figure 1-Figure 2 The large-diameter special triple anti-corrosion plastic-coated steel pipe shown includes a steel pipe body 1 and also includes:

[0030] The reinforcing ribs 2 are arranged on the outside of the steel pipe body 1 and are used to reinforce the structure of the steel pipe body 1;

[0031] There are two mounting holes 3, which are respectively arranged on the inner walls of the top two ends of the steel pipe body 1;

[0032] The connecting mechanism 4 is arranged outside the two ends of the steel pipe body 1 and is used to connect and fix the steel pipe body 1.

[0033] In order to conveniently splice the two steel pipe bodies 1, Figure 2-Figure 3 and Figure 5 As shown, the connecting mechanism 4 includes a connecting sleeve 401, a sealing gasket 402 is fixedly installed in the middle position of the inner wall of the connecting sleeve 401, a plurality of connecting grooves 403 are provided at both ends of the inner wall of the connecting sleeve 401, and the plurality of connecting grooves 403 at the same end are respectively movably connected to the outer walls of one end of the plurality of reinforcing ribs 2, and fixing holes 404 are provided at both ends of the top inner wall of the connecting sleeve 401, and a fastening bolt 405 is provided between the inner wall of the fixing hole 404 and the adjacent mounting hole 3, and the connecting sleeve 401 can be quickly sleeved onto the outside of the steel pipe body 1 through the connection between the connecting groove 403 and the outer wall of the reinforcing rib 2, and the fastening bolt 405 is used to penetrate the fixing hole 404 and be threadedly connected to the inner wall of the adjacent mounting hole 3, so that the connecting sleeve 401 can stably connect the two steel pipe bodies 1.

[0034] In order to make the steel pipe body 1 have a good anti-corrosion effect, Figure 2-Figure 4 As shown, the steel pipe body 1 includes a pipe body 101, the inner wall of the pipe body 101 is provided with an inner anti-corrosion coating 102, the outer wall of the pipe body 101 is provided with an outer anti-corrosion coating 103, the outer side of the outer anti-corrosion coating 103 is provided with a wear-resistant layer 104, the inner anti-corrosion coating 102 is set to polyethylene material, the outer anti-corrosion coating 103 is set to epoxy resin material, and the wear-resistant layer 104 is set to polyurethane material. Through the setting of the inner anti-corrosion coating 102, the outer anti-corrosion coating 103 and the wear-resistant layer 104, the inner wall and the outer wall of the pipe body 101 have good anti-corrosion effect, which can improve the service life of the steel pipe body 1.

[0035] In order to ensure that the connecting sleeve 401 can be stably connected to the steel pipe body 1, Figure 2-Figure 3 and Figure 5 As shown, six reinforcing ribs 2 are provided, and the six reinforcing ribs 2 are fixedly installed on the outer side of the steel pipe body 1 in a ring shape with equal intervals. The left vertical section of the reinforcing ribs 2 and the connecting groove 403 is set to a rectangular structure. The inner diameter size of the connecting sleeve 401 is the same as the outer diameter size of the steel pipe body 1, the inner diameter size of the steel pipe body 1 is the same as the inner diameter size of the sealing gasket 402, the diameter size of the mounting hole 3 is the same as the diameter size of the fixing hole 404, the outer wall of the fastening bolt 405 is threadedly connected to the inner wall of the adjacent mounting hole 3 and the fixing hole 404, and the connection between the reinforcing ribs 2 and the connecting groove 403 allows the connecting sleeve 401 to be stably sleeved onto the outer side of the steel pipe body 1, and the sealing gasket 402 can seal the connection position between the two steel pipe bodies 1.

[0036] When the steel pipe body 1 is produced and processed, six reinforcing ribs 2 are cast on the outside of the pipe body 101 through integral casting, and then an inner anti-corrosion coating 102 of a polyethylene material is coated on the inner wall of the pipe body 101 through a plastic coating process, and at the same time, an outer anti-corrosion coating 103 of an epoxy resin material is coated on the outer wall of the pipe body 101, and then a wear-resistant layer 104 of a polyurethane material is coated on the outside of the outer anti-corrosion coating 103, and then mounting holes 3 are opened at both ends of the top of the steel pipe body 1. The arrangement of the inner and outer anti-corrosion layers enables the steel pipe body 1 to have a good anti-corrosion effect, and at the same time, the arrangement of the wear-resistant layer 104 can further protect the pipe body 101, and can improve the applicability of the steel pipe body 1. When the two steel pipe bodies 1 are spliced, the connecting machine The structure 4 is sleeved onto the outer side of the steel pipe body 1 of the device, so that the connecting groove 403 can be sleeved onto the outer side of the adjacent reinforcing rib 2, and at the same time, the fixing hole 404 can be aligned with the mounting hole 3. Then, when the connecting groove 403 is completely sleeved onto the outer side of the reinforcing rib 2, the fixing hole 404 is aligned with the adjacent mounting hole 3, and then the fastening bolt 405 is used to penetrate the inner wall of the fixing hole 404 and is threadedly connected to the inner wall of the adjacent mounting hole 3, so that the connecting sleeve 401 can be stably connected to the steel pipe body 1, and at the same time, the sealing gasket 402 can seal the connection position between the two steel pipe bodies 1, so that the splicing of the steel pipe bodies 1 is more convenient and stable. This embodiment specifically solves the problem that two steel pipes cannot be spliced ​​quickly in the prior art.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A large-diameter special triple-anticorrosive plastic-coated steel pipe, comprising a steel pipe body (1), characterized in that: Also includes: A reinforcing rib (2) is arranged on the outside of the steel pipe body (1) and is used to reinforce the structure of the steel pipe body (1); Two mounting holes (3) are provided, and are respectively provided on the inner walls at both ends of the top of the steel pipe body (1); The connecting mechanism (4) is arranged outside the two ends of the steel pipe body (1) and is used to connect and fix the steel pipe body (1); The connection mechanism (4) comprises a connection sleeve (401), a sealing gasket (402) is fixedly installed at the middle position of the inner wall of the connection sleeve (401), a plurality of connection grooves (403) are provided at both ends of the inner wall of the connection sleeve (401), the plurality of connection grooves (403) at the same end are respectively movably connected to the outer wall of one end of a plurality of reinforcing ribs (2), a fixing hole (404) is provided at both ends of the top inner wall of the connection sleeve (401), and a fastening bolt (405) is provided between the inner wall of the fixing hole (404) and the adjacent mounting hole (3).

2. The large-diameter special triple anti-corrosion plastic-coated steel pipe according to claim 1 is characterized by: The steel pipe body (1) comprises a pipe body (101), the inner wall of the pipe body (101) is provided with an inner anti-corrosion coating (102), the outer wall of the pipe body (101) is provided with an outer anti-corrosion coating (103), and the outer side of the outer anti-corrosion coating (103) is provided with a wear-resistant layer (104).

3. The large-diameter special triple anti-corrosion plastic-coated steel pipe according to claim 2 is characterized by: The inner anti-corrosion coating (102) is configured as a polyethylene material, the outer anti-corrosion coating (103) is configured as an epoxy resin material, and the wear-resistant layer (104) is configured as a polyurethane material.

4. The large-diameter special triple anti-corrosion plastic-coated steel pipe according to claim 1 is characterized by: Six reinforcing ribs (2) are provided, and the six reinforcing ribs (2) are fixedly installed in an annular manner at equal intervals on the outside of the steel pipe body (1). The left-view vertical section of the reinforcing ribs (2) and the connecting groove (403) are both arranged in a rectangular structure.

5. The large-diameter special triple anti-corrosion plastic-coated steel pipe according to claim 1 is characterized by: The inner diameter of the connecting sleeve (401) is the same as the outer diameter of the steel pipe body (1), and the inner diameter of the steel pipe body (1) is the same as the inner diameter of the sealing gasket (402).

6. The large-diameter special triple anti-corrosion plastic-coated steel pipe according to claim 1 is characterized by: The diameter of the mounting hole (3) is the same as the diameter of the fixing hole (404), and the outer wall of the fastening bolt (405) is threadedly connected to the inner wall of the adjacent mounting hole (3) and fixing hole (404).

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