Stretch-resistant steel wire reinforced composite pipe

Abstract

The utility model relates to the technical field of composite pipes, in particular to a tensile steel wire reinforced composite pipe which comprises a pipe, the pipe is of a three-layer hollow composite structure, a corrosion-resistant layer is arranged on the inner wall of the pipe, a high-density polyethylene outer attaching layer is arranged on the outer wall of the pipe, and a steel wire layer is arranged between the outer attaching layer and the corrosion-resistant layer. A first connector and a second connector are further included, the first connector is fixedly installed at one end of the pipe, four bolt holes are evenly formed in the outer ring of the first connector, the second connector is fixedly installed at the other end of the pipe, and a connecting mechanism is arranged on the outer wall of the second connector. The connecting mechanism facilitates preliminary connection of the two sections of pipes, the wiring requirement can be met, and when higher sealing and stretching resistance are needed, after the connected pipes are preliminarily connected through the connecting mechanism, the two sections of pipes are limited by the connecting mechanism and cannot move freely, and therefore the sealing performance and the stretching resistance of the pipes are improved. Constructors can conveniently and continuously conduct sealing operation by injecting adhesive glue, bolts and the like.

Description

Technical Field

[0001] This utility model relates to the field of composite pipe technology, and in particular to a tensile-resistant steel wire reinforced composite pipe. Background Technology

[0002] Steel wire reinforced composite pipe is a new type of pipe material that uses a mesh skeleton formed by left and right spiral winding of high-strength steel wire as reinforcement and high-density polyethylene as matrix to be tightly connected together.

[0003] Compared with traditional polyethylene pipes, steel wire reinforced composite pipes have advantages such as high strength and high temperature resistance. However, in actual use, since two sections of pipe need to be connected, the traditional high-temperature melting and butt welding method may expose or deform the steel wire skeleton, affecting the connection reliability and safety performance of the connection end. This makes the connected steel wire reinforced composite pipe prone to breakage and separation when subjected to external tensile force. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tensile-resistant steel wire reinforced composite pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tensile-resistant steel wire reinforced composite pipe includes a pipe material, which has a three-layer hollow composite structure. The inner wall of the pipe material is provided with a corrosion-resistant layer, the outer wall of the pipe material is provided with a high-density polyethylene outer layer, and a steel wire layer is provided between the outer layer and the corrosion-resistant layer. Modified adhesive resin is mixed in the outer layer, the steel wire layer and the corrosion-resistant layer.

[0007] It also includes a first connector and a second connector. The first connector is fixedly installed at one end of the pipe, and four bolt holes are evenly opened on the outer ring of the first connector. The second connector is fixedly installed at the other end of the pipe, and a connecting mechanism is provided on the outer wall of the second connector.

[0008] Preferably, the outer wall of the first connector is provided with an annular connecting groove, and two symmetrical connecting holes connected to the outside of the first connector are provided at the top of the connecting groove.

[0009] Preferably, the connecting groove has a plurality of teeth evenly formed on the side wall near the pipe, the teeth are inclined outward, and each tooth is misaligned with the others.

[0010] Preferably, the outer wall of the second connector is fixedly connected with an annular connecting ring, which is adapted to the connecting groove.

[0011] Preferably, the connecting mechanism includes an L-shaped through groove and a steel ball. Four L-shaped through grooves are evenly distributed on the outer wall of the connecting ring, and a steel ball is movably installed at one end of each L-shaped through groove.

[0012] Preferably, the connecting groove has four top beads that correspond one-to-one with the L-shaped through grooves evenly arranged on the side wall near the pipe, and four grooves that correspond one-to-one with each top bead are evenly opened on the outer side wall of the connecting groove, with the size of the grooves being adapted to the steel balls.

[0013] Preferably, the pipe is provided with a connecting elbow for use with the first connector and the second connector, and the two ends of the connecting elbow have the same structure as the pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a pipe structure where a modified adhesive resin tightly bonds the outer layer, steel wire layer, and corrosion-resistant layer into a single unit. This results in a uniform pipe material texture, a reasonable distribution of physical properties, and prevents delamination of the outer layer, steel wire layer, and corrosion-resistant layer after prolonged use due to material differences, thus preserving the pipe's lifespan. In underground installations and other applications where the outer layer is in direct contact with the external environment, the high-density polyethylene outer layer effectively provides wear resistance and protection. The corrosion-resistant layer, when used as a water or gas pipe, prevents corrosion and water / gas contamination. The steel wire layer directly enhances the pipe's strength.

[0016] This utility model, by setting a first connector, a second connector, and a connecting mechanism, uses the first and second connectors for connecting two pipe sections together. Compared with the traditional high-temperature melting connection method, it can prevent the pipe from being affected by high temperature and thus avoid deformation and other adverse effects, maintaining the integrity of the pipe. It can also enhance the tensile strength of the pipe after connection by connecting the first and second connectors, without reducing the usability of the pipe after connection. The connecting mechanism facilitates the initial connection of two pipe sections, and the connected pipe also has a certain tensile strength, which can meet the needs of wiring. When higher sealing and tensile strength are required, after the pipe sections are initially connected by the connecting mechanism, the two pipe sections are restricted by the connecting mechanism and cannot move freely, which makes it easy for construction personnel to continue the sealing operation by injecting adhesive and bolts.

[0017] This invention, by setting a connecting hole, allows for the filling of gaps between the connecting ring and the toothed groove after the connecting groove and connecting ring are connected when higher sealing and tensile strength are required. Adhesive is injected into one connecting hole to fill the gap, and the process stops when adhesive flows out of the outlet of the other connecting hole. Bolts are then used to connect the two pipe sections through the bolt holes, thus tightly connecting the two pipes together and ensuring a tight seal at the connection. Compared to the traditional sealing method of rubber gaskets, this invention improves the sealing effect at the connection, and the adhesive filling method is less prone to aging, thus extending the service life of the pipes. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the pipe structure of a tensile-resistant steel wire reinforced composite pipe proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of a tensile-resistant steel wire reinforced composite pipe proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the first connector structure of a tensile-resistant steel wire reinforced composite pipe proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the second connector structure of a tensile-resistant steel wire reinforced composite pipe proposed in this utility model;

[0022] Figure 5 This utility model proposes a tensile-resistant steel wire reinforced composite pipe. Figure 4 Enlarged view of area A in the middle;

[0023] Figure 6 This is a schematic diagram of a connecting elbow structure for a tensile-resistant steel wire reinforced composite pipe proposed in this utility model.

[0024] In the diagram: 1. Pipe; 2. Outer layer; 3. Steel wire layer; 4. Corrosion resistant layer; 5. First connector; 6. Bolt hole; 7. Connecting groove; 8. Toothed groove; 9. Connecting hole; 10. Second connector; 11. Connecting ring; 12. Connecting mechanism; 13. L-shaped through groove; 14. Steel ball; 15. Top ball; 16. Connecting elbow. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1-6A tensile-resistant steel wire reinforced composite pipe includes a pipe 1, which has a three-layer hollow composite structure. The inner wall of the pipe 1 is provided with a corrosion-resistant layer 4, and the outer wall of the pipe 1 is provided with a high-density polyethylene outer layer 2. A steel wire layer 3 is provided between the outer layer 2 and the corrosion-resistant layer 4. Modified adhesive resin is mixed in the outer layer 2, the steel wire layer 3 and the corrosion-resistant layer 4.

[0027] It also includes a first connector 5 and a second connector 10. The first connector 5 is fixedly installed at one end of the pipe 1. Four bolt holes 6 are evenly opened on the outer ring of the first connector 5. The second connector 10 is fixedly installed at the other end of the pipe 1. A connecting mechanism 12 is provided on the outer wall of the second connector 10. Pipe 1 utilizes the bonding function of modified adhesive resin to tightly connect the outer layer 2, steel wire layer 3, and corrosion-resistant layer 4 into a single unit. This ensures that the entire pipe 1 has a uniform texture and a reasonable distribution of physical properties. Furthermore, it prevents delamination of the outer layer 2, steel wire layer 3, and corrosion-resistant layer 4 after prolonged use due to differences in materials, thus avoiding a significant reduction in the service life of pipe 1. In underground installations or other applications, the outer layer 2, made of high-density polyethylene, directly contacts the external environment, providing effective wear resistance and protection. The corrosion-resistant layer 4, when used as a water or gas pipe, provides corrosion resistance, preventing liquid or gas corrosion and water / gas pollution. The steel wire layer 3 directly enhances the strength of pipe 1. The first connector 5 and the second connector 10 are used for connecting pipes 1 in pairs. Compared to traditional high-temperature melting connection methods, this method prevents pipe 1 from being affected by high temperatures and thus avoiding deformation or other adverse effects. The connection mechanism 12 maintains the integrity of pipe 1 and enhances the tensile strength of pipe 1 after connection by connecting the first connector 5 and the second connector 10, without reducing the scope of use of pipe 1 after connection. The connection mechanism 12 is used for simple connection of two pipe sections 1. Since pipe 1 can be used for liquid and gas communication and for various cable routing, the tensile strength of pipe 1 after connection has different requirements under different usage scenarios. For liquids and gases, high sealing and tensile strength are required, while for cable routing, the requirements can be reduced to save installation costs. The connection mechanism 12 facilitates the initial connection of two pipe sections 1. The connected pipe 1 also has a certain tensile strength, which can meet the needs of cable routing. When higher sealing and tensile strength are required, after the two pipe sections 1 are initially connected by the connection mechanism 12, the two pipe sections 1 are restricted by the connection mechanism 12 and cannot move freely, which facilitates the construction personnel to continue the sealing operation.

[0028] As a technical optimization of this utility model, an annular connecting groove 7 is provided on the outer wall of the first connector 5, and two connecting holes 9 symmetrically provided on the top of the connecting groove 7, which are connected to the outside of the first connector 5. When higher sealing performance and tensile strength are required, after the connecting groove 7 is connected to the connecting ring 11, the gap between the connecting ring 11 and the toothed groove 8 can be filled by injecting adhesive into one of the connecting holes 9. The process can be stopped when adhesive flows out of the outlet end of the other connecting hole 9, and then the two pipe sections 1 are connected by using bolts through the bolt holes 6. At this time, the two pipe sections 1 can be tightly connected together, and the sealing performance of the connection is guaranteed. Compared with the traditional sealing method of rubber gaskets, the sealing effect of the connection can be improved, and the method of filling with adhesive is less prone to aging, which can extend the service life of the pipe section 1.

[0029] As a technical optimization of this utility model, the connecting groove 7 has a plurality of teeth 8 evenly formed on the side wall near the pipe 1. The teeth 8 are inclined outward and each tooth 8 is misaligned with the others. After the connecting groove 7 is connected to the connecting ring 11, due to the inclined structure of the teeth 8, the end of the connecting ring 11 abuts against one side of each tooth 8 but does not contact the other side of the tooth 8, that is, there is a gap between the connecting ring 11 and the tooth 8.

[0030] As a technical optimization of this utility model, an annular connecting ring 11 is fixedly connected to the outer wall of the second connector 10, and the connecting ring 11 is adapted to the connecting groove 7. The connecting ring 11 is inserted into the connecting groove 7 to connect the pipes 1 in pairs.

[0031] As a technical optimization of this utility model, the connecting mechanism 12 includes an L-shaped through groove 13 and a steel ball 14. The outer wall of the connecting ring 11 is evenly provided with four L-shaped through grooves 13, and a steel ball 14 is movably installed at one end of each L-shaped through groove 13. When the connecting ring 11 is connected to the connecting groove 7, the top ball 15 is connected to the L-shaped through groove 13. As the connecting ring 11 is connected, the top ball 15 finally abuts against the steel ball 14 and pushes the steel ball 14 into the groove. At this time, the initial connection of the two pipe sections 1 can be achieved. Due to the pairwise limiting of the top ball 15, the steel ball 14 and the groove, the two pipe sections 1 can be connected and have a certain tensile strength, which can meet the needs of wiring. There is no need to inject adhesive, which can save consumables and operation time.

[0032] As a technical optimization of this utility model, four top beads 15, corresponding one-to-one with the L-shaped through grooves 13, are evenly arranged on the side wall of the connecting groove 7 near the pipe 1. Four grooves, corresponding one-to-one with each top bead 15, are evenly opened on the outer side wall of the connecting groove 7. The size of the grooves is adapted to the steel ball 14. When connecting the two sections of pipe 1, first align the bolt holes 6 and the top beads 15 and L-shaped through grooves 13, and then push the connecting ring 11 into the connecting groove 7.

[0033] As a technical optimization of this utility model, the pipe 1 is provided with a connecting elbow 16 for use with the first connector 5 and the second connector 10. The two ends of the connecting elbow 16 have the same structure as the pipe 1. When the pipe 1 needs to turn during the connection process, it can be connected through the connecting elbow 16. The usage method is the same. Alternatively, a tee connector can be manufactured according to actual needs.

[0034] In use, when connecting two sections of pipe 1, first align the bolt holes 6, the top ball 15, and the L-shaped through groove 13. Then, push the connecting ring 11 into the connecting groove 7. As the connecting ring 11 is inserted, the top ball 15 enters the L-shaped through groove 13. The top ball 15 finally abuts against the steel ball 14 and pushes the steel ball 14 into the groove. At this point, the initial connection of the two sections of pipe 1 is achieved. After the connecting groove 7 is connected to the connecting ring 11, due to the inclined structure of the toothed groove 8, the end of the connecting ring 11 abuts against one side of each toothed groove 8 but does not contact the other side of the toothed groove 8. That is, the connecting ring 11 and the connecting groove 7 are connected. There is a gap between the toothed grooves 8. When higher sealing and tensile strength are required, after the connecting groove 7 is connected to the connecting ring 11, the gap between the connecting ring 11 and the toothed groove 8 can be filled by injecting adhesive into one of the connecting holes 9. Stop when adhesive flows out of the outlet end of the other connecting hole 9. Then use bolts to pass through the bolt holes 6 to connect the two pipe sections 1. At this time, the two pipe sections 1 can be tightly connected together. When the pipe section 1 needs to be turned during the connection process, it can be connected by connecting elbow 16. The method of use is the same. A tee connector can also be manufactured according to actual needs.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tensile-resistant steel wire reinforced composite pipe, comprising a pipe (1), characterized in that: The pipe (1) is a three-layer hollow composite structure. The inner wall of the pipe (1) is provided with a corrosion-resistant layer (4), and the outer wall of the pipe (1) is provided with a high-density polyethylene outer layer (2). A steel wire layer (3) is provided between the outer layer (2) and the corrosion-resistant layer (4). Modified adhesive resin is mixed in the outer layer (2), the steel wire layer (3) and the corrosion-resistant layer (4). It also includes a first connector (5) and a second connector (10). The first connector (5) is fixedly installed at one end of the pipe (1). The first connector (5) has four bolt holes (6) evenly opened on the outer ring. The second connector (10) is fixedly installed at the other end of the pipe (1). The second connector (10) has a connecting mechanism (12) on its outer wall.

2. The tensile-resistant steel wire reinforced composite pipe according to claim 1, characterized in that: The outer wall of the first connector (5) is provided with an annular connecting groove (7), and the top of the connecting groove (7) is provided with two symmetrical connecting holes (9) that communicate with the outside of the first connector (5).

3. The tensile-resistant steel wire reinforced composite pipe according to claim 2, characterized in that: The connecting groove (7) has several teeth (8) evenly distributed on the side wall near the pipe (1). The teeth (8) are inclined outward and each tooth (8) is misaligned with the others.

4. The tensile-resistant steel wire reinforced composite pipe according to claim 2, characterized in that: The outer wall of the second connector (10) is fixedly connected with an annular connecting ring (11), which is adapted to the connecting groove (7).

5. The tensile-resistant steel wire reinforced composite pipe according to claim 4, characterized in that: The connecting mechanism (12) includes an L-shaped through groove (13) and a steel ball (14). The outer wall of the connecting ring (11) is evenly provided with four L-shaped through grooves (13), and a steel ball (14) is movably installed at one end of each L-shaped through groove (13) away from each other.

6. The tensile-resistant steel wire reinforced composite pipe according to claim 5, characterized in that: The connecting groove (7) has four top beads (15) that correspond one-to-one with the L-shaped through groove (13) evenly arranged on the side wall near the pipe (1). The outer ring side wall of the connecting groove (7) has four grooves that correspond one-to-one with each top bead (15), and the size of the grooves is adapted to the steel ball (14).

7. The tensile-resistant steel wire reinforced composite pipe according to claim 1, characterized in that: The pipe (1) is provided with a connecting elbow (16) for use with the first connector (5) and the second connector (10). The two ends of the connecting elbow (16) have the same structure as the pipe (1).

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