Steel-concrete reinforced plastic water supply pipe, water supply pipe system and water supply pipe construction method

Abstract

The present invention relates to the technical field of water supply pipes, in particular to a steel-concrete reinforced plastic water supply pipe, a water supply pipe system and a construction method for a water supply pipe, wherein a steel-concrete reinforced plastic water supply pipe comprises a concrete water pipe body, the outer wall of the concrete water pipe body is covered and connected with a steel cylinder, the outer wall of the steel cylinder is covered with a first plastic plate, the inner wall of the concrete water pipe body is covered with a second plastic plate, both ends of the concrete water pipe body are covered with a third plastic plate, the third plastic plate is respectively sealed with the first plastic plate and the second plastic plate, at least one layer of prestressed steel wire three is provided in the concrete water pipe body, and the prestressed steel wire three is connected to the second plastic plate. The steel-concrete reinforced plastic water supply pipe of the present application can not only ensure that it has the properties of a plastic pipe that does not pollute water quality, has good anti-seepage performance, is corrosion-resistant, has a long service life, and has low friction resistance of water flow in the pipe, but also has the advantages of large diameter, high pressure resistance and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply pipes, in particular to a steel-concrete reinforced plastic water supply pipe, a water supply pipe system and a water supply pipe construction method. Background Art

[0002] Currently, existing concrete water pipes have water seepage problems, resulting in a short lifespan. Furthermore, the concrete material can pollute water quality. Furthermore, the concrete surface is rough, resulting in high friction resistance for the water inside the pipe.

[0003] However, the diameter of pure plastic water supply pipes cannot be made very large, their pressure resistance is not as good as that of steel wire concrete water supply pipes, and their cost is high. Summary of the Invention

[0004] The purpose of the present invention is to address the problems of existing concrete water pipes in the prior art, which have water seepage problems and result in a short service life; and the concrete material will pollute the water quality; at the same time, the surface of the concrete material is rough, resulting in large friction resistance of the water in the pipe; and the diameter of pure plastic pipes cannot be made very large, the pressure resistance is not as good as that of steel wire concrete water supply pipes, and their cost is high. A steel-concrete reinforced plastic water supply pipe, a water supply pipe system and a water supply pipe construction method are provided.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A steel-concrete reinforced plastic water supply pipe includes a concrete water pipe body, the outer wall of the concrete water pipe body is covered and connected with a steel cylinder, the outer wall of the steel cylinder is covered with a first plastic plate, the inner wall of the concrete water pipe body is covered with a second plastic plate, both ends of the concrete water pipe body are covered with a third plastic plate, the third plastic plate is respectively sealed with the first plastic plate and the second plastic plate, at least one layer of prestressed steel wire three is provided in the concrete water pipe body, and the prestressed steel wire three is connected to the second plastic plate.

[0007] The steel-concrete reinforced plastic water supply pipe described in the present application includes a concrete water pipe body, the outer wall of the concrete water pipe body is covered with a steel cylinder, so that the steel-concrete reinforced plastic water supply pipe is resistant to high pressure; the outer wall of the steel cylinder is covered with a first plastic plate, the inner wall of the concrete water pipe body is covered with a second plastic plate, and the two ends of the concrete water pipe body are covered with a third plastic plate, and the third plastic plate is sealed with the first plastic plate and the second plastic plate respectively, so that the surface of the steel-concrete reinforced plastic water supply pipe is covered with plastic plates, which has good waterproof performance, corrosion resistance, and thus a long service life. At the same time, since the inner wall of the concrete water pipe body is covered with the second plastic plate, the steel-concrete reinforced plastic water supply pipe does not pollute the water quality, and the friction resistance of the water flow in the pipe is small.

[0008] Moreover, since the first plastic plate is covered on the outer wall of the steel cylinder and the second plastic plate is covered on the inner wall of the concrete water pipe body, it can have a larger diameter than the existing pure plastic water supply pipe.

[0009] In the above scheme, prestressed steel wire three is provided in the concrete water pipe body to enhance the strength of the concrete water pipe body. At the same time, the prestressed steel wire three is connected to the second plastic plate. The prestressed steel wire three enables the second plastic plate to "take root" and stick tightly to the inner wall of the concrete water pipe body without falling off.

[0010] To sum up, the steel-concrete reinforced plastic water supply pipe described in this application, through the combination of concrete, steel cylinder and the first plastic plate, the second plastic plate and the third plastic plate, can not only ensure that the plastic pipe does not pollute the water quality, has good anti-seepage performance, corrosion resistance, long service life, and low friction resistance of water flow in the pipe, but also has the advantages of large diameter, high pressure resistance (high ring stiffness) and low cost.

[0011] Preferably, the first plastic plate is a polyethylene plate, a polypropylene plate or a polyvinyl chloride plate;

[0012] and / or,

[0013] The second plastic sheet is a polyethylene sheet, a polypropylene sheet or a polyvinyl chloride sheet;

[0014] and / or,

[0015] The third plastic plate is a polyethylene plate, a polypropylene plate or a polyvinyl chloride plate.

[0016] Preferably, the first plastic plate is coated on the outer wall of the steel cylinder;

[0017] or

[0018] The outer wall of the steel cylinder is covered with a second concrete tube body, the outer wall of the second concrete tube body is covered with a first prestressed steel wire mesh, and the first plastic plate is covered on the outer side of the first prestressed steel wire mesh;

[0019] or

[0020] The outer side of the steel cylinder is covered with a second prestressed steel wire mesh, and the first plastic plate is covered on the outer side of the second prestressed steel wire mesh.

[0021] The present application also discloses a steel-concrete reinforced plastic water supply pipe system, comprising a pressing device and at least two steel-concrete reinforced plastic water supply pipes as described in the present application, wherein a sealing assembly is sealed between adjacent steel-concrete reinforced plastic water supply pipes, and the sealing assembly is arranged at least one circle along the circumference of the steel-concrete reinforced plastic water supply pipe. The pressing device is sleeved on the outside of the sealing assembly and can press the sealing assembly from the outside of the sealing assembly.

[0022] The present application relates to a steel-concrete reinforced plastic water supply pipe system, in which a sealing assembly is provided between adjacent steel-concrete reinforced plastic water supply pipes, and the sealing assembly is arranged at least one circle along the circumference of the steel-concrete reinforced plastic water supply pipe. The pressing device is sleeved on the outside of the sealing assembly and can press the sealing assembly from the outside of the sealing assembly, so that the sealing assembly is easier to be pressed, thereby improving the sealing performance between adjacent steel-concrete reinforced plastic water supply pipes.

[0023] Preferably, a sealing groove is provided adjacent to the connection position of the steel-concrete reinforced plastic water supply pipe, the sealing groove is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe, and the sealing assembly is arranged in the sealing groove.

[0024] A sealing groove is provided on the outer wall of the connection position of the adjacent steel-concrete reinforced plastic water supply pipes. The sealing groove is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe. A sealing assembly is provided in the sealing groove. The sealing assembly can be pressed from the outside of the sealing assembly by a pressing device, so that the sealing assembly can be more easily pressed by the pressing device, thereby improving the sealing performance between the adjacent steel-concrete reinforced plastic water supply pipes.

[0025] Preferably, the clamping device includes an annular plate and a clamping component, the two ends of the annular plate are respectively sealed with the first plastic plate on the corresponding side, a threaded through hole is provided on the annular plate, the clamping component passes through the threaded through hole and clamps the sealing assembly, and the clamping component is threadedly connected to the threaded through hole.

[0026] Preferably, there are at least two threaded through holes, all of which are arranged along the annular direction of the sealing groove, and each of the threaded through holes is threadedly fitted with the pressing component.

[0027] Preferably, the sealing assembly is sleeved on the outside of the steel-concrete reinforced plastic water supply pipe, and two adjacent steel-concrete reinforced plastic water supply pipes and their corresponding sealing assemblies are sealed together.

[0028] Preferably, the pressing device is a clamp.

[0029] The present application also discloses a construction method for the steel-concrete reinforced plastic water supply pipe described in the present application, comprising the following steps:

[0030] Step 1. Setting a bottom mold, the bottom mold being adapted to one end of the steel-concrete reinforced plastic water supply pipe, and installing an inner mold on the bottom mold, the inner mold being arranged vertically;

[0031] Step 2. Sleeve and connect the second plastic plate on the outer side of the inner mold;

[0032] Step 3. Sleeve a steel cylinder outside the second plastic plate so that the steel cylinder and the second plastic plate enclose a casting space for forming the concrete water pipe body, and set a prestressed steel wire three in the casting space;

[0033] Step 4. Connecting at least one of the prestressed steel wires 3 to the second plastic plate;

[0034] Step 5. Casting and forming the concrete water pipe body in the casting space;

[0035] Step 6. Wrapping the outer side of the steel cylinder with the first plastic sheet;

[0036] Step 7. constructing a third plastic plate on the top of the casting space, and sealingly connecting the third plastic plate to the first plastic plate and the second plastic plate respectively;

[0037] Step 8. Turn the steel-concrete reinforced plastic water supply pipe vertically over, construct a third plastic plate at the other end of the casting space, and seal the third plastic plate with the first plastic plate and the second plastic plate respectively.

[0038] The construction method for the steel-concrete reinforced plastic water supply pipe described in the present application utilizes a steel cylinder as an outer mold for the concrete water pipe body, and cooperates with an inner mold to cast the concrete water pipe body. At the same time, a steel wire is connected to the second plastic plate and / or the steel cylinder to fix the second plastic plate on the steel wire to prevent the second plastic plate from falling off the concrete water pipe body. The entire production process does not require an outer mold, saving costs.

[0039] Preferably, before step 5, a vibrator for vibrating the concrete in the pouring space is installed on the inner mold.

[0040] The vibrator is installed on the inner mold and can be used repeatedly without being removed. It is very suitable for the mass production of the steel-concrete reinforced plastic water supply pipe described in this application.

[0041] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0042] 1. The steel-concrete reinforced plastic water supply pipe described in this application, through the combination of concrete, steel cylinder and the first plastic plate, the second plastic plate and the third plastic plate, can not only ensure that it has the properties of plastic pipes that do not pollute water quality, have good anti-seepage performance, corrosion resistance, long service life, and low friction resistance of water flow in the pipe, but also has the advantages of large diameter, high pressure resistance (high ring stiffness) and low cost.

[0043] 2. In the present application, a steel-concrete reinforced plastic water supply pipe system is provided, wherein a sealing assembly is provided between adjacent steel-concrete reinforced plastic water supply pipes, and the sealing assembly is provided at least in one circle along the circumference of the steel-concrete reinforced plastic water supply pipe. The pressing device is sleeved on the outside of the sealing assembly and can press the sealing assembly from the outside of the sealing assembly, so that the sealing assembly is easier to be pressed, thereby improving the sealing performance between adjacent steel-concrete reinforced plastic water supply pipes.

[0044] 3. The construction method for the steel-concrete reinforced plastic water supply pipe described in the present application utilizes a steel cylinder as an outer mold for the concrete water pipe body, and cooperates with an inner mold to cast the concrete water pipe body. At the same time, a steel wire is connected to the second plastic plate and / or the steel cylinder to fix the second plastic plate on the steel wire to prevent the second plastic plate from falling off the concrete water pipe body. The entire production process does not require an outer mold, saving costs.

[0045] 4. The construction method for the steel-concrete reinforced plastic water supply pipe described in this application is that the vibrator is installed on the inner mold and does not need to be removed and can be used repeatedly. It is highly suitable for the mass production of the steel-concrete reinforced plastic water supply pipe described in this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic longitudinal section of the steel-concrete reinforced plastic water supply corridor section of the present invention (with the ends flush);

[0047] Figure 2 Schematic diagram of the cross section of the steel-concrete reinforced plastic water supply pipe of the present invention (bevel groove at the end, the first plastic sheet directly covering the outside of the steel cylinder);

[0048] Figure 3 This is a schematic cross-sectional view of the steel-concrete reinforced plastic water supply pipe of the present invention (with an end chute, a second concrete pipe body and a first prestressed steel wire mesh between the first plastic plate and the steel cylinder);

[0049] Figure 4 This is a schematic cross-sectional view of the steel-concrete reinforced plastic water supply pipe of the present invention (with an end chute and a second prestressed steel wire mesh between the first plastic plate and the steel cylinder);

[0050] Figure 5 This is a schematic diagram of the connection of two adjacent steel-concrete reinforced plastic water supply pipes of the present invention (end chute);

[0051] Figure 6 A side view (end chute) of a steel-concrete reinforced plastic water supply pipe system of the present invention;

[0052] Figure 7 This is a schematic diagram of the connection of two adjacent steel-concrete reinforced plastic water supply pipes of the present invention (the ends are flush);

[0053] Figure 8 This is a side view of a steel-concrete reinforced plastic water supply pipe system of the present invention (with the ends flush);

[0054] Figure 9 This is a schematic diagram of step 1 of a construction method for the steel-concrete reinforced plastic water supply pipe described in this application.

[0055] Figure 10 This is a schematic diagram of step 5 of a construction method for the steel-concrete reinforced plastic water supply pipe described in this application.

[0056] Figure 11 This is a schematic diagram of step 7 of a construction method for the steel-concrete reinforced plastic water supply pipe described in this application.

[0057] Figure 12 This is a schematic diagram of vertical turning in step 8 of the construction method for the steel-concrete reinforced plastic water supply pipe described in this application.

[0058] Figure 13 This is a schematic diagram of step 8 of a construction method for the steel-concrete reinforced plastic water supply pipe described in this application.

[0059] Markings in the figure: 1-concrete water pipe body, 2-first plastic plate, 3-third plastic plate, 4-bottom mold, 5-steel-concrete reinforced plastic water supply pipe, 6-sealing groove, 7-sealing assembly, 8-prestressed steel wire three, 9-pressing device, 10-steel cylinder, 11-concrete pipe body two, 12-annular plate, 13-second plastic plate, 15-pressing component, 16-threaded through hole, 17-inner mold, 18-casting space, 19-vibrator, 20-prestressed steel wire mesh one; 21-prestressed steel wire mesh two. DETAILED DESCRIPTION

[0060] The present invention will be described in detail below with reference to the accompanying drawings.

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0062] Example 1

[0063] like Figure 1-4As shown, the steel-concrete reinforced plastic water supply pipe described in this embodiment includes a concrete water pipe body 1, the outer wall of the concrete water pipe body 1 is covered and connected with a steel cylinder 10, and the steel cylinder 10 is open on both sides. The outer wall of the steel cylinder 10 is sleeved with a first plastic plate 2, and the inner wall of the concrete water pipe body 1 is covered with a second plastic plate 13. The two ends of the concrete water pipe body 1 are covered with at least one layer of a third plastic plate 3, and the third plastic plate 3 is sealed with the first plastic plate 2 and the second plastic plate 13 respectively.

[0064] In the above scheme, a prestressed steel wire three 8 is provided in the concrete water pipe body 1 to enhance the strength of the concrete water pipe body 1. At the same time, the prestressed steel wire three 8 is connected to the second plastic plate 13. The prestressed steel wire three 8 enables the second plastic plate 13 to "take root" and adhere tightly to the inner wall of the concrete water pipe body 1 without falling off.

[0065] Specifically, the first plastic plate 2 can be selected from polyethylene plate, polypropylene plate or polyvinyl chloride plate;

[0066] The second plastic plate 13 can be selected from polyethylene plate, polypropylene plate or polyvinyl chloride plate;

[0067] The third plastic plate 3 can be selected from polyethylene plate, polypropylene plate or polyvinyl chloride plate.

[0068] On the basis of the above, in a further preferred embodiment, a prestressed steel wire 8 is provided in the concrete water pipe body 1 to enhance the strength of the concrete water pipe body 1 .

[0069] In the above scheme, the steel-concrete reinforced plastic water supply pipe described in this embodiment has a concrete water pipe body 1 whose outer wall is covered and connected with a steel cylinder 10, so that the steel-concrete reinforced plastic water supply pipe is resistant to high pressure; the outer wall of the steel cylinder 10 is covered with a first plastic plate 2, and the inner wall of the concrete water pipe body 1 is covered with a second plastic plate 13, and both ends of the concrete water pipe body 1 are covered with a third plastic plate 3, and the third plastic plate 3 is respectively sealed with the first plastic plate 2 and the second plastic plate 13, so that the surface of the steel-concrete reinforced plastic water supply pipe is covered with plastic plates, has good waterproof performance, corrosion resistance, and thus a long service life. At the same time, since the inner wall of the concrete water pipe body 1 is covered with the second plastic plate 13, the steel-concrete reinforced plastic water supply pipe does not pollute the water quality, and the friction resistance of the water flow in the pipe is small.

[0070] Moreover, since the first plastic plate 2 is covered on the outer wall of the steel cylinder 10, its final shape can be bent by the first plastic plate 2, and the second plastic plate 13 is covered on the inner wall of the concrete water pipe body 1, its final shape can be bent by the second plastic plate 13, and the first plastic plate 2 and the second plastic plate 13 do not need to be injection molded as a whole, and the first plastic plate 2 and the second plastic plate 13 are much thinner than the existing pure plastic water supply pipe, so compared with the existing pure plastic water supply pipe, it can achieve a larger diameter.

[0071] In the above solution, the outer wall of the steel cylinder 10 is provided with a first plastic plate 2, which includes at least the following three specific solutions:

[0072] Option 1: If Figure 1 and 2 As shown, the first plastic plate 2 is directly coated on the outer wall of the steel cylinder 10;

[0073] Option 2: If Figure 3 As shown, the outer wall of the steel cylinder 10 is covered with a second concrete pipe body 11, the outer wall of the second concrete pipe body 11 is covered with a prestressed steel wire mesh 20, and the first plastic plate 2 is covered on the outside of the prestressed steel wire mesh 20;

[0074] Option 3: If Figure 4 As shown, the outer side of the steel cylinder 10 is covered with a second prestressed steel wire mesh 21 , and the first plastic plate 2 is covered on the outer side of the second prestressed steel wire mesh 21 .

[0075] The beneficial effects of this embodiment: The steel-concrete reinforced plastic water supply pipe described in this application, through the combination of concrete, steel cylinder and the first plastic plate 2, the second plastic plate 13 and the third plastic plate 3, can not only ensure that the plastic pipe does not pollute the water quality, has good anti-seepage performance, corrosion resistance, long service life, and low friction resistance of water flow in the pipe, but also has the advantages of large diameter, high pressure resistance, high ring stiffness and low cost.

[0076] Example 2

[0077] like Figure 5 and 6As shown, in order to address the problem in the prior art that the ports of adjacent water supply pipes are usually connected by flanges, and since the contact ports of adjacent water supply pipes cannot be as flat as the side walls of their interfaces, it is not easy for the flanges to compress the seals when the adjacent water supply pipes are connected by flanges, this embodiment provides a steel-concrete reinforced plastic water supply pipe system, including a clamping device 9 and at least two steel-concrete reinforced plastic water supply pipes 5 as described in Example 1, and a sealing assembly 7 is sealed between adjacent steel-concrete reinforced plastic water supply pipes 5, and the sealing assembly 7 is arranged at least one circle along the circumference of the steel-concrete reinforced plastic water supply pipe 5, and the clamping device 9 is sleeved on the outside of the sealing assembly 7 and can compress the sealing assembly 7 from the outside of the sealing assembly 7.

[0078] Specifically, a sealing groove 6 is provided at the connection position of the adjacent steel-concrete reinforced plastic water supply pipe 5, and the sealing groove 6 is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe 5, and the sealing component 7 is arranged in the sealing groove 6. A sealing groove 6 is provided on the outer wall of the connection position of the adjacent steel-concrete reinforced plastic water supply pipe 5, and the sealing groove 6 is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe 5. The sealing component 7 is arranged in the sealing groove 6. The sealing component 7 can be pressed from the outside of the sealing component 7 by a pressing device, making it easier to press the sealing component 7, thereby improving the sealing performance between the adjacent steel-concrete reinforced plastic water supply pipes 5.

[0079] Specifically, if Figure 5 and 6 As shown, the sealing groove 6 is an annular groove with a V-shaped cross section.

[0080] Specifically, the clamping device 9 includes an annular plate 12 and a clamping component 15. The two ends of the annular plate 12 are respectively sealed with the first plastic plate 2 on the corresponding side. A threaded through hole 16 is provided on the annular plate 12. The clamping component 15 passes through the threaded through hole 16 and clamps the sealing assembly 7. The clamping component 15 is threadedly connected to the threaded through hole 16. There are at least two threaded through holes 16. All of the threaded through holes 16 are arranged along the annular direction of the sealing groove 6. Each of the threaded through holes 16 is threadedly fitted with the clamping component 15.

[0081] Beneficial effects of this embodiment: In a steel-concrete reinforced plastic water supply pipe system of the present application, a sealing assembly 7 is sealed between adjacent steel-concrete reinforced plastic water supply pipes 5, and the sealing assembly 7 is arranged at least one circle along the circumference of the steel-concrete reinforced plastic water supply pipe 5. The pressing device 9 is sleeved on the outside of the sealing assembly 7 and can press the sealing assembly 7 from the outside of the sealing assembly 7, so that the sealing assembly 7 is easier to be pressed, thereby improving the sealing performance between adjacent steel-concrete reinforced plastic water supply pipes 5.

[0082] A sealing groove 6 is provided on the outer wall of the connection position of the adjacent steel-concrete reinforced plastic water supply pipes 5. The sealing groove 6 is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe 5. A sealing component 7 is provided in the sealing groove 6. The sealing component 7 can be pressed from the outside of the sealing component 7 by a pressing device, so that the sealing component 7 is more easily pressed by the pressing device 9, thereby improving the sealing performance between the adjacent steel-concrete reinforced plastic water supply pipes 5.

[0083] Example 3

[0084] like Figure 7 and 8 As shown, this embodiment provides a steel-concrete reinforced plastic water supply pipe system, which is different from Example 2 in that: no sealing groove is provided between adjacent steel-concrete reinforced plastic water supply pipes 5, but a sealing component 7 is directly sleeved on the outer wall of the steel-concrete reinforced plastic water supply pipe 5 at the matching position of adjacent steel-concrete reinforced plastic water supply pipes 5. Specifically, the sealing component 7 is sleeved on the outside of the steel-concrete reinforced plastic water supply pipe 5, and the two adjacent steel-concrete reinforced plastic water supply pipes 5 and their corresponding sealing components 7 are sealed together. The clamping device 9 is preferably a clamp, which tightens the sealing component 7 by the clamp to achieve the purpose of directly sealing the adjacent steel-concrete reinforced plastic water supply pipes 5.

[0085] Example 4

[0086] like Figure 9-13 As shown, the construction method for the steel-concrete reinforced plastic water supply pipe 5 described in Example 1 described in this embodiment includes the following steps:

[0087] Step 1. Set up a bottom mold 4, which is adapted to one end of the steel-concrete reinforced plastic water supply pipe 5, and install an inner mold 17 on the bottom mold 4, wherein the inner mold 17 is arranged vertically;

[0088] Step 2. Sleeve and connect the second plastic plate 13 on the outer side of the inner mold 17;

[0089] Step 3. Sleeve the steel cylinder 10 outside the second plastic plate 13 so that the steel cylinder 10 and the second plastic plate 13 enclose a casting space 18 for forming the concrete water pipe body 1, and set the prestressed steel wire 8 in the casting space 18;

[0090] Step 4. Connect at least one of the prestressed steel wires 8 to the second plastic plate 13;

[0091] Step 5. Casting and forming the concrete water pipe body 1 in the casting space 18;

[0092] Step 6. Wrapping the first plastic plate 2 on the outer side of the steel cylinder 10;

[0093] Step 7. construct a third plastic plate 3 on the top of the casting space 18, and seal the third plastic plate 3 with the first plastic plate 2 and the second plastic plate 13 respectively;

[0094] Step 8. Turn the steel-concrete reinforced plastic water supply pipe 5 vertically, construct a third plastic plate 3 at the other end of the casting space 18, and seal the third plastic plate 3 with the first plastic plate 2 and the second plastic plate 13 respectively.

[0095] In the above steps, before step 5, a vibrator 19 for vibrating the concrete in the pouring space is installed on the inner mold 17.

[0096] The vibrator 19 is installed on the inner mold 17 and can be used repeatedly without being removed. It is very suitable for the mass production of the steel-concrete reinforced plastic water supply pipe 5 described in this application.

[0097] On the basis of the above, in a further preferred embodiment, a vibrator 19 is also installed on the outer wall of the first plastic plate 2 to enhance the effect of concrete vibration.

[0098] Beneficial effects of this embodiment: The construction method described in this application for the steel-concrete reinforced plastic water supply pipe 5 described in Example 1 uses a steel cylinder 10 as an outer mold of the concrete water pipe body 1, and cooperates with the inner mold 17 to cast the concrete water pipe body 1. At the same time, a steel wire is connected to the second plastic plate 13 and / or the steel cylinder 10 to fix the second plastic plate 13 on the steel wire to prevent the second plastic plate 13 from falling off from the concrete water pipe body 1. The entire production process does not require an outer mold, saving costs.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel-concrete reinforced plastic water supply pipe, characterized in that: The invention comprises a concrete water pipe body (1), wherein the outer wall of the concrete water pipe body (1) is covered with a steel cylinder (10), the outer wall of the steel cylinder (10) is provided with a first plastic plate (2), the inner wall of the concrete water pipe body (1) is covered with a second plastic plate (13), both ends of the concrete water pipe body (1) are covered with a third plastic plate (3), the third plastic plate (3) is respectively sealed with the first plastic plate (2) and the second plastic plate (13), and at least one layer of prestressed steel wire three (8) is provided in the concrete water pipe body (1), and the prestressed steel wire three (8) is connected to the second plastic plate (13); The first plastic plate (2) and the second plastic plate (13) are both bent into shape.

2. The steel-concrete reinforced plastic water supply pipe according to claim 1, characterized in that: The first plastic plate (2) is a polyethylene plate, a polypropylene plate or a polyvinyl chloride plate; And / or, the second plastic plate (13) is a polyethylene plate, a polypropylene plate or a polyvinyl chloride plate; And / or, the third plastic plate (3) is a polyethylene plate, a polypropylene plate or a polyvinyl chloride plate.

3. A steel-concrete reinforced plastic water supply pipe according to claim 1 or 2, characterized in that: The first plastic plate (2) is coated on the outer wall of the steel cylinder (10); Or the outer wall of the steel cylinder (10) is covered with a second concrete pipe body (11), the outer wall of the second concrete pipe body (11) is covered with a first prestressed steel wire mesh (20), and the first plastic plate (2) is covered on the outer side of the first prestressed steel wire mesh (20); Or the outer side of the steel cylinder (10) is covered with a second prestressed steel wire mesh (21), and the first plastic plate (2) is covered on the outer side of the second prestressed steel wire mesh (21).

4. A steel-concrete reinforced plastic water supply pipe system, characterized by: The invention comprises a pressing device (9) and at least two steel-concrete reinforced plastic water supply pipes according to any one of claims 1 to 3, wherein a sealing assembly (7) is provided between adjacent steel-concrete reinforced plastic water supply pipes (5), and the sealing assembly (7) is provided at least once along the circumference of the steel-concrete reinforced plastic water supply pipe (5), and the pressing device (9) is sleeved on the outside of the sealing assembly (7) and can press the sealing assembly (7) from the outside of the sealing assembly (7).

5. The steel-concrete reinforced plastic water supply pipe system according to claim 4, characterized in that: A sealing groove (6) is provided at a connection position adjacent to the steel-concrete reinforced plastic water supply pipe (5), the sealing groove (6) is arranged along the circumference of the steel-concrete reinforced plastic water supply pipe (5), and the sealing assembly (7) is arranged in the sealing groove (6).

6. The steel-concrete reinforced plastic water supply pipe system according to claim 5, characterized in that: The pressing device (9) comprises an annular plate (12) and a pressing component (15), the two ends of the annular plate (12) are respectively sealed with the first plastic plate (2) on the corresponding side, a threaded through hole (16) is provided on the annular plate (12), the pressing component (15) passes through the threaded through hole (16) and presses the sealing assembly (7), and the pressing component (15) is threadedly connected to the threaded through hole (16).

7. The steel-concrete reinforced plastic water supply pipe system according to claim 4, characterized in that: The sealing assembly (7) is sleeved on the outside of the steel-concrete reinforced plastic water supply pipe (5), and two adjacent steel-concrete reinforced plastic water supply pipes (5) and their corresponding sealing assemblies (7) are sealed and matched.

8. The steel-concrete reinforced plastic water supply pipe system according to claim 5 or 7, characterized in that: The pressing device (9) is a clamp.

9. A construction method for the steel-concrete reinforced plastic water supply pipe according to any one of claims 1 to 2, characterized in that: The following steps are involved: Step 1. Setting a bottom mold (4), wherein the bottom mold (4) is adapted to one end of the steel-concrete reinforced plastic water supply pipe (5), and installing an inner mold on the bottom mold (4), wherein the inner mold is arranged vertically; Step 2. Sleeve and connect the second plastic plate (13) on the outer side of the inner mold; Step 3. A steel cylinder (10) is sleeved on the outer side of the second plastic plate (13), so that the steel cylinder (10) and the second plastic plate (13) enclose a casting space (18) for forming the concrete water pipe body (1), and a prestressed steel wire (8) is arranged in the casting space (18); Step 4. Connecting at least one of the prestressed steel wires (8) to the second plastic plate (13); Step 5. Casting and forming the concrete water pipe body (1) in the casting space (18); Step 6. Wrapping the first plastic plate (2) on the outer side of the steel cylinder (10); Step 7. constructing a third plastic plate (3) on the top of the casting space (18), and sealingly connecting the third plastic plate (3) to the first plastic plate (2) and the second plastic plate (13) respectively; Step 8. Turn the steel-concrete reinforced plastic water supply pipe (5) vertically, construct a third plastic plate (3) at the other end of the casting space (18), and seal the third plastic plate (3) with the first plastic plate (2) and the second plastic plate (13) respectively.

10. The construction method of a steel-concrete reinforced plastic water supply pipe according to claim 9, characterized in that: Before step 5, a vibrator (19) for vibrating the concrete in the pouring space (18) is installed on the inner mold.

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