Cement composite pipe

Abstract

The utility model relates to the technical field of cement pipes, and aims to solve the problem that the service life of the cement composite pipe is limited due to the fact that the existing cement composite pipe adopts a reinforcing mesh to reinforce the cement pipe and is further connected with a lining pipe, and layering is easy. The utility model provides a cement composite pipe which comprises a plurality of cement pipes, a plurality of reinforcing mesh cylinders and a plurality of lining pipes, the adjacent cement pipes are connected through a connecting assembly; the lining pipe is arranged in the cement pipe; the reinforcing mesh cylinder is arranged between the lining pipe and the cement pipe; a plurality of limiting assemblies are arranged on the side, close to the cement pipe, of the reinforcing mesh cylinder. The limiting assembly is embedded in the cement pipe; according to the cement composite pipe, the stability is high after the cement pipe and the lining pipe are connected, delaminating is not prone to occurring, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of cement pipe technology, and more specifically, to a cement composite pipe. Background Technology

[0002] Cement pipes are widely used in sewage systems to transport wastewater. However, because the inner wall of cement pipes is in long-term contact with sewage, it is prone to corrosion, which can cause pits to form on the inner wall of the pipe. This can lead to poor flow of the medium and even affect the strength, sealing and service life of the pipe, and may even pose safety hazards.

[0003] In the prior art, anti-corrosion coatings are usually applied to the inner wall of cement pipes, or corrosion-resistant inner lining pipes are used. For example, the patent with publication number CN2474862Y discloses a cement pipe, a steel mesh, and a corrosion-resistant inner lining pipe. A composite cement pipe is obtained by pouring concrete and connecting the inner lining pipe with the steel mesh.

[0004] However, directly using steel mesh can only improve the mechanical strength of composite cement pipes. With the use of composite cement pipes, under the long-term vibration caused by the impact of sewage on the pipe wall, the inner lining pipe and the cement pipe layer will gradually delaminate, which will lead to the inner lining pipe being damaged due to uneven stress. Ultimately, this will shorten the service life of the composite pipe, especially at the pipe section connection, where delamination and local breakage of the cement pipe are most likely to occur.

[0005] Based on the above description, there is an urgent need for a corrosion-resistant cement composite pipe that is highly stable and not prone to delamination. Utility Model Content

[0006] The purpose of this utility model is to provide a cement composite pipe that solves the technical problem that existing cement composite pipes, which use steel mesh to reinforce the cement pipe and further connect to an inner lining pipe, are prone to delamination, thus resulting in a limited service life of the cement composite pipe.

[0007] The embodiments of this utility model are achieved through the following technical solutions:

[0008] A cement composite pipe includes multiple cement pipes and multiple steel mesh cylinders, and also includes multiple inner lining pipes; adjacent cement pipes are connected by connecting components; the inner lining pipes are disposed inside the cement pipes; the steel mesh cylinders are disposed between the inner lining pipes and the cement pipes; multiple limiting components are provided on the side of the steel mesh cylinders near the cement pipes; the limiting components are embedded in the cement pipes.

[0009] Preferably, the limiting component includes a plurality of T-shaped protrusions; each T-shaped protrusion includes a contracting end and an extending end; the contracting end is connected to the steel mesh cylinder; the extending end extends toward the cement pipe; and the extending end is embedded in the cement pipe.

[0010] Preferably, the limiting component includes a first stiffening plate, a second stiffening plate, and a ring plate; the first stiffening plate and the second stiffening plate are disposed opposite each other on both sides of the ring plate; the ring plate is sleeved on the steel mesh cylinder and connected to the steel mesh cylinder.

[0011] Preferably, the top of the first stiffener is provided with a third stiffener at an angle; the top of the second stiffener is provided with a fourth stiffener at an angle; the angle between the third stiffener and the fourth stiffener is an acute angle.

[0012] Preferably, the connecting assembly includes an insert cylinder and a receiving groove corresponding to the insert cylinder; the insert cylinder and the receiving groove are disposed opposite to each other at both ends of the cement pipe.

[0013] Preferably, multiple sealing rings are provided between the insert cylinder and the receiving groove.

[0014] Preferably, the receiving groove is provided with a plurality of positioning ribs at one end near the inserting cylinder; the plurality of positioning ribs are arranged radially around the outside of the steel mesh cylinder; and the end of the positioning rib away from the inner lining tube is embedded in the cement pipe.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] This utility model uses a steel mesh cylinder to uniformly connect the cement pipe and the inner lining pipe. The inner lining pipe is made of plastic, which has a certain strength and is also corrosion-resistant. This prevents sewage from directly contacting the cement pipe and causing corrosion during sewage discharge. Furthermore, multiple limiting components set in the steel mesh cylinder improve the stability between the cement pipe and the inner lining pipe after casting, reduce the possibility of delamination between the inner lining pipe and the cement pipe, and improve the service life and safety of the cement composite pipe during use. Attached Figure Description

[0017] Figure 1 This is a first structural schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of local structure A in the middle;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of local structure B in the middle;

[0020] Figure 4 for Figure 3 Schematic diagram of the second structure of local structure B in the middle;

[0021] Figure 5 for Figure 4 A three-dimensional structural diagram of the middle limiting component;

[0022] Figure 6 This is a schematic diagram of the second structure of the present invention;

[0023] Figure 7 for Figure 6 A magnified schematic diagram of local structure C in the middle.

[0024] Icons: 1-Cement pipe, 2-Reinforcing mesh tube, 3-Inner lining pipe, 4-Connecting component, 41-Intercalating tube, 42-Receiving groove, 5-Limiting component, 51-T-shaped protrusion, 52-First stiffening plate, 53-Second stiffening plate, 54-Ring plate, 6-Third stiffening plate, 7-Fourth stiffening plate, 8-Sealing ring, 9-Positioning rib. Detailed Implementation

[0025] The specific implementation method is described below with reference to the accompanying drawings.

[0026] Example 1

[0027] Please see Figures 1 to 7 The present invention provides the following technical solution: a cement composite pipe, which is suitable for cement pipes used in sewage systems.

[0028] Specifically, such as Figure 1 As shown, a cement composite pipe includes multiple cement pipes 1 and multiple steel mesh cylinders 2, and also includes multiple inner lining pipes 3; adjacent cement pipes 1 are connected by connecting components 4; the inner lining pipes 3 are disposed inside the cement pipes 1; the steel mesh cylinders 2 are disposed between the inner lining pipes 3 and the cement pipes 1; multiple limiting components 5 are disposed on the side of the steel mesh cylinders 2 near the cement pipes 1; the limiting components 5 are embedded in the cement pipes 1.

[0029] In this embodiment, the steel mesh cylinder 2 serves to uniformly connect the cement pipe 1 and the inner lining pipe 3. The inner lining pipe 3 is made of plastic, which has a certain strength and corrosion resistance, thus preventing sewage from directly contacting the cement pipe 1 and causing corrosion during sewage discharge. Furthermore, the multiple limiting components 5 provided on the steel mesh cylinder 2 improve the stability between the cement pipe 1 and the inner lining pipe 3 after casting, reduce the possibility of delamination between the inner lining pipe 3 and the cement pipe 1, and improve the service life and safety of the cement composite pipe during use.

[0030] Specifically, such as Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the first implementation structure of the limiting component 5 may include multiple T-shaped protrusions 51; the T-shaped protrusions 51 include a contraction end and an extension end; the contraction end is connected to the steel mesh cylinder 2; the extension end extends toward the cement pipe 1; the extension end is embedded in the cement pipe 1.

[0031] In this embodiment, the T-shaped protrusion 51 can ensure the stability of the connection between the cement pipe 1 and the inner lining pipe 3 when the pipe vibrates during sewage discharge, thus reducing delamination and improving service life.

[0032] Specifically, such as Figure 4 and Figure 5 As shown, the second implementation structure of the limiting component 5 may include a first stiffening plate 52, a second stiffening plate 53 and a ring plate 54; the first stiffening plate 52 and the second stiffening plate 53 are disposed opposite each other on both sides of the ring plate 54; the ring plate 54 is sleeved on the steel mesh cylinder 2 and connected to the steel mesh cylinder 2.

[0033] In this embodiment, the top of the first stiffener 52 is provided with a third stiffener 6 at an angle; the top of the second stiffener 53 is provided with a fourth stiffener 7 at an angle.

[0034] In this embodiment, the angle between the third stiffener 6 and the fourth stiffener 7 is an acute angle. The third stiffener 6 and the fourth stiffener 7 can achieve bidirectional limiting, ensuring the stability of the connection between the cement pipe 1 and the inner lining pipe 3 when the pipe vibrates during sewage discharge.

[0035] Specifically, such as Figure 2 As shown, the connecting component 4 may include an insert cylinder 41 and a receiving groove 42 corresponding to the insert cylinder 41; the insert cylinder 41 and the receiving groove 42 are disposed opposite to each other at both ends of the cement pipe 1.

[0036] In this embodiment, multiple sealing rings 8 are provided between the insert cylinder 41 and the receiving groove 42.

[0037] Specifically, such as Figure 2 As shown, the receiving groove 42 is provided with a plurality of positioning ribs 9 at one end near the insertion tube 41; the plurality of positioning ribs 9 are arranged around the outside of the steel mesh tube 2 in the radial direction; the end of the positioning rib 9 away from the inner lining tube 3 is embedded in the cement pipe 1.

Claims

1. A cement composite pipe, comprising multiple cement pipes (1) and multiple steel mesh cylinders (2), characterized in that: It also includes multiple inner lining pipes (3); adjacent cement pipes (1) are connected by connecting components (4); the inner lining pipes (3) are located inside the cement pipes (1); the steel mesh cylinder (2) is provided between the inner lining pipes (3) and the cement pipes (1); multiple limiting components (5) are provided on the side of the steel mesh cylinder (2) near the cement pipes (1); the limiting components (5) are embedded in the cement pipes (1).

2. The cement composite pipe according to claim 1, characterized in that: The limiting component (5) includes a plurality of T-shaped protrusions (51); the T-shaped protrusions (51) include a contraction end and an extension end; the contraction end is connected to the steel mesh cylinder (2); the extension end extends toward the cement pipe (1); the extension end is embedded in the cement pipe (1).

3. The cement composite pipe according to claim 1, characterized in that: The limiting component (5) includes a first stiffening plate (52), a second stiffening plate (53), and a ring plate (54); the first stiffening plate (52) and the second stiffening plate (53) are disposed opposite to each other on both sides of the ring plate (54); the ring plate (54) is sleeved on the steel mesh cylinder (2) and connected to the steel mesh cylinder (2).

4. The cement composite pipe according to claim 3, characterized in that: The top of the first stiffener (52) is provided with a third stiffener (6) at an angle; the top of the second stiffener (53) is provided with a fourth stiffener (7) at an angle; the angle between the third stiffener (6) and the fourth stiffener (7) is an acute angle.

5. The cement composite pipe according to any one of claims 1 to 4, characterized in that: The connecting assembly (4) includes an insert cylinder (41) and a receiving groove (42) corresponding to the insert cylinder (41); the insert cylinder (41) and the receiving groove (42) are disposed opposite to each other at both ends of the cement pipe (1).

6. The cement composite pipe according to claim 5, characterized in that: Multiple sealing rings (8) are provided between the insert tube (41) and the receiving groove (42).

7. The cement composite pipe according to claim 5, characterized in that: The receiving groove (42) is provided with a plurality of positioning ribs (9) at one end near the inserting tube (41); the plurality of positioning ribs (9) are arranged around the outside of the steel mesh tube (2) in the radial direction; the end of the positioning rib (9) away from the inner lining tube (3) is embedded in the cement pipe (1).

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