High-resistance and high-pressure-resistant PE water supply pipe

Abstract

The utility model discloses a high-resistance high-pressure-resistant PE water supply pipe which comprises an outer pipe and an inner pipe, the inner pipe is fixedly welded in the outer pipe, and the outer pipe and the inner pipe jointly form a pipeline piece. By arranging the pipeline parts, the inner pipe, the outer pipe, the threads, the threaded grooves, the first threaded holes, the second threaded holes and the connecting bolts, after the pipeline parts are connected end to end and the outer pipe or the inner pipe in the pipeline parts is damaged and seeps water, the four connecting bolts are taken out from the first threaded holes and the second threaded holes of the pipeline parts, then the damaged pipeline parts are rotated, and the pipeline parts are fixed. The damaged pipeline part is taken down from the outer pipe and the inner pipe on the head side and the tail side, then a new pipeline part is replaced, the damaged pipeline part can be disassembled and replaced, disassembly is convenient and fast, and more practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply pipes, in particular to a high-resistance and high-pressure resistant PE water supply pipe. Background Art

[0002] Water supply pipe is a green, energy-saving and environmentally friendly pipe. It does not rust, scale or shrink in diameter, has low fluid resistance, can effectively reduce water supply energy consumption and increase water supply at water points. It is an ideal pipe for pipe networks.

[0003] After searching, the publication number is: CN209354776U which discloses a reinforced PE water supply pipe. By setting a threaded sleeve, when installing the water pipe body at the corner, due to the limitation of the place, the longer water pipe body needs to be cut before installation, and the end of the water pipe body with a thread is cut to a certain extent, and the threaded sleeve is threadedly installed on the thread, and the water inlet pipe of one water pipe body is inserted into the end of the other water pipe body away from the threaded sleeve. The first rubber ring on the water inlet pipe fits the clamping ring, and the water inlet pipe inserted into the water pipe body is sealed by the second rubber ring. Glue is introduced through the injection port to fix the water inlet pipe and the water pipe body. The first rubber ring and the second rubber ring prevent glue leakage. The length of the water pipe body can be changed by the threaded sleeve, which is convenient for workers to switch and install the water pipe body according to the actual needs of the site during the installation process, thereby improving work efficiency. However, the above-mentioned prior art uses glue to fix the water inlet pipe and the water pipe body. When the connected water pipe body is broken and needs to be disassembled and replaced, the water pipe body fixed by glue is not easy to remove from the water inlet pipe. It is difficult to disassemble the damaged water pipe body, which is not practical.

[0004] In order to solve the above problems, the utility model proposes a high-resistance and high-pressure resistant PE water supply pipe. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a highly resistant and high-pressure PE water supply pipe to solve the technical problem in the prior art that "the above-mentioned prior art uses glue to fix the water inlet pipe and the water pipe body. When the connected water pipe body is broken and needs to be disassembled and replaced, the water pipe body fixed by glue is not easy to remove from the water inlet pipe, and it is difficult to disassemble the damaged water pipe body, which is not practical enough."

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A high-resistance and high-pressure resistant PE water supply pipe comprises an outer pipe and an inner pipe, wherein the inner pipe is fixedly welded inside the outer pipe, and the outer pipe and the inner pipe together constitute a pipe fitting, a protective layer is arranged on the side wall of the outer pipe, a thread is provided on the side wall of the inner pipe, two No. 1 threaded holes are symmetrically arranged on the side wall of the inner pipe, a No. 2 threaded hole matching the No. 1 threaded hole is arranged on the side wall of the outer pipe, a connecting bolt is threadedly connected in the No. 1 threaded hole and the No. 2 threaded hole, a No. 1 sealing ring block is fixedly installed on the wall thickness of the inner pipe, a No. 2 sealing ring block is arranged on the side walls of the two connecting bolts, and a thread groove matching the thread of the inner pipe side wall is arranged on the inner wall of the outer pipe.

[0008] As a preferred technical solution of the utility model, the No. 2 sealing ring block is slidably connected to the side wall of the connecting bolt.

[0009] As a preferred technical solution of the utility model, the length of the inner tube exposed in the outer tube is the same as the distance from the inside of the bottom end of the outer tube to the bottom end of the inner tube.

[0010] As a preferred technical solution of the utility model, the protective layer is fixedly connected to the side wall of the outer tube, and the protective layer is a polyethylene plastic block.

[0011] As a preferred technical solution of the utility model, the No. 1 sealing ring block and the No. 2 sealing ring block are both rubber ring blocks.

[0012] As a preferred technical solution of the utility model, the inner wall of the inner tube is coated with an anti-corrosion coating, and the anti-corrosion coating is an electrophoretic coating.

[0013] The utility model provides a high-resistance and high-pressure resistant PE water supply pipe, which has the following beneficial effects:

[0014] 1. By setting the pipe fittings, inner pipes, outer pipes, threads, thread grooves, No. 1 threaded holes, No. 2 threaded holes, and connecting bolts, when the pipe fittings are connected at the head and tail, if the outer pipe or inner pipe in the pipe fittings is damaged and water seeps, the four connecting bolts are taken out from the No. 1 threaded holes and No. 2 threaded holes of the pipe fittings, and then the damaged pipe fittings are rotated to remove the damaged pipe fittings from the outer pipes and inner pipes on both sides of the head and tail, and then the new pipe fittings are replaced, so that the disassembly and replacement of the damaged pipe fittings can be completed, which is convenient and more practical;

[0015] 2. By setting the No. 1 sealing ring block and the No. 2 sealing ring block, when the inner tube is spliced ​​and installed, it will abut against the bottom end of the other inner tube. At this time, the No. 1 sealing ring block can seal the joint of the two inner tubes. After the No. 2 sealing ring block completes the threaded connection between the inner tube and the other outer tube by the connecting bolt, the No. 2 sealing ring block can seal the joint between the No. 2 threaded hole and the connecting bolt, thereby preventing the water flowing in the inner tube from leaking out through the joint of the two inner tubes or the joint between the No. 2 threaded hole and the connecting bolt, thereby improving the sealing between the two pipe parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a high-resistance and high-pressure resistant PE water supply pipe proposed by the utility model;

[0017] Figure 2 This is a front structural cross-sectional view of a high-resistance and high-pressure resistant PE water supply pipe proposed by the utility model;

[0018] Figure 3 This is a cross-sectional view of the connection structure of a high-resistance and high-pressure resistant PE water supply pipe proposed by the utility model.

[0019] In the figure: 1 outer tube, 2 inner tube, 3 No. 1 threaded hole, 4 No. 2 threaded hole, 5 No. 1 sealing ring block, 6 connecting bolts, 7 No. 2 sealing ring block. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation mode of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] Example

[0022] refer to Figure 1-3A high-resistance and high-pressure PE water supply pipe comprises an outer pipe 1 and an inner pipe 2. The inner pipe 2 is fixedly welded in the outer pipe 1. The outer pipe 1 and the inner pipe 2 together constitute a pipe fitting. A protective layer is arranged on the side wall of the outer pipe 1. A thread is arranged on the side wall of the inner pipe 2. Two No. 1 threaded holes 3 are symmetrically arranged on the side wall of the inner pipe 2. A No. 2 threaded hole 4 matching the No. 1 threaded hole 3 is arranged on the side wall of the outer pipe 1. A connecting bolt 6 is threadedly connected in the No. 1 threaded hole 3 and the No. 2 threaded hole 4. A No. 1 sealing ring block 5 is fixedly installed on the wall thickness of the inner pipe 2. A No. 2 sealing ring block 7 is arranged on the side walls of the two connecting bolts 6. A threaded groove matching the thread of the side wall of the inner pipe 2 is arranged on the inner wall of the outer pipe 1.

[0023] When two pipe fittings need to be assembled and connected, one of the inner tubes 2 is inserted into the tail of the other outer tube 1 and the thread of the side wall of the inner tube 2 is threadedly connected with the thread groove of the inner wall of the outer tube 1. At this time, the inner tube 2 is rotated in the other outer tube 1 until it abuts against the bottom end of the other inner tube 2. At this time, the No. 1 sealing ring block 5 seals the joint of the two inner tubes 2. When the inner tube 2 abuts against the bottom of the other inner tube 2, the two No. 1 threaded holes 3 on the inner tube 2 match the two No. 2 threaded holes 4 on the other outer tube 1. At this time, two connecting bolts 6 are used to thread the inner tube 2 and the other outer tube 1. The No. 2 sealing ring block 7 slidably sleeved on the connecting bolts 6 can seal the No. 2 threaded holes 4. The joints between the threaded holes 4 and the connecting bolts 6 are sealed to prevent the water flowing in the inner tube 2 from leaking out from the No. 1 threaded hole 3 and the No. 2 threaded hole 4, thereby improving the connection sealing performance of the connecting bolts 6 to the No. 1 threaded hole 3 and the No. 2 threaded hole 4. When the outer tube 1 or the inner tube 2 in a certain pipe component is damaged and leaking, it is only necessary to shut off the water supply, remove the four connecting bolts 6 from the No. 1 threaded hole 3 and the No. 2 threaded hole 4 of the pipe component, and then rotate the damaged pipe component to remove the damaged pipe component from the outer tube 1 and the inner tube 2 on both sides of the head and tail. At this time, the disassembly and separation of the damaged pipe component can be completed, and then the new pipe component can be replaced to complete the replacement of the new pipe component, which saves time and effort and is more practical.

[0024] Among them, the No. 2 sealing ring block 7 is slidingly connected to the side wall of the connecting bolt 6.

[0025] By making the second sealing ring block 7 slidably connected to the side wall of the connecting bolt 6, when the second sealing ring block 7 is damaged during use, it is only necessary to cover the new sealing ring block 7 on the side wall of the connecting bolt 6 to complete the replacement of the second sealing ring block 7, which saves time and effort;

[0026] The length of the inner tube 2 exposed in the outer tube 1 is the same as the distance from the inside of the bottom end of the outer tube 1 to the bottom end of the inner tube 2 .

[0027] By making the length of the inner tube 2 exposed in the outer tube 1 equal to the distance from the bottom end of the outer tube 1 to the bottom end of the inner tube 2, after the inner tube 2 is threaded into another outer tube 1, the inner tube 2 contacts the bottom end of the other inner tube 2, and the side walls of the two outer tubes 1 fit together;

[0028] The protective layer is fixedly connected to the side wall of the outer tube 1, and the protective layer is a polyethylene plastic block.

[0029] By making the protective layer of polyethylene plastic blocks, which have electrical insulation properties, when the pipe parts are buried under the ground and in contact with the soil, the polyethylene plastic blocks can resist soil stress while not polluting the soil, thus achieving good protective effects and being more environmentally friendly;

[0030] Wherein, the No. 1 sealing ring block 5 and the No. 2 sealing ring block 7 are both rubber ring blocks.

[0031] By making the No. 1 sealing ring block 5 and the No. 2 sealing ring block 7 into rubber ring blocks, the rubber ring blocks will produce a certain deformation after being squeezed, so that contact stress is generated on the surface of the rubber ring blocks to achieve sealing;

[0032] The inner wall of the inner tube 2 is coated with an anti-corrosion coating, which is an electrophoretic coating.

[0033] By applying an anti-corrosion coating on the inner wall of the inner tube 2, the anti-corrosion coating is an electrophoretic coating. The electrophoretic coating can form a uniform organic film on the inner tube 2 through electrolysis. It has corrosion resistance and can keep the inner wall of the inner tube 2 smooth for a long time, reduce the accumulation of scale on the inner wall of the inner tube 2, and extend the service life of the inner tube 2.

[0034] The working principle of the utility model is as follows: when two pipe parts need to be assembled and connected, one of the inner tubes 2 is inserted into the tail of the other outer tube 1 and the thread of the side wall of the inner tube 2 is threadedly connected with the thread groove of the inner wall of the outer tube 1. At this time, the inner tube 2 is rotated in the other outer tube 1 until it abuts against the bottom end of the other inner tube 2. At this time, the No. 1 sealing ring block 5 seals the joint of the two inner tubes 2. When the inner tube 2 abuts against the bottom of the other inner tube 2, the two No. 1 threaded holes 3 on the inner tube 2 match the positions of the two No. 2 threaded holes 4 on the other outer tube 1. At this time, two connecting bolts 6 are used to thread the inner tube 2 and the other outer tube 1. The No. 2 sealing ring block 7 slidably sleeved on the connecting bolt 6 can seal the joint between the No. 2 threaded hole 4 and the connecting bolt 6 to prevent the water flowing in the inner tube 2 from leaking out from the No. 1 threaded hole 3 and the No. 2 threaded hole 4, thereby improving the connection sealing performance of the connecting bolt 6 to the No. 1 threaded hole 3 and the No. 2 threaded hole 4;

[0035] When multiple pipe parts are assembled according to the above process and start working, when the outer tube 1 or the inner tube 2 in a pipe part is damaged and leaks, it is only necessary to shut off the water supply, remove the four connecting bolts 6 from the No. 1 threaded hole 3 and the No. 2 threaded hole 4 of the pipe part, and then rotate the damaged pipe part to remove the damaged pipe part from the outer tube 1 and the inner tube 2 on both sides of the head and tail. At this time, the disassembly and separation of the damaged pipe part can be completed, and then the new pipe part can be replaced to complete the replacement of the new pipe part. The disassembly is convenient and more practical.

[0036] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

Claims

1. A high-resistance and high-pressure resistant PE water supply pipe, comprising an outer pipe (1) and an inner pipe (2), characterized in that: The inner tube (2) is fixedly welded inside the outer tube (1); the outer tube (1) and the inner tube (2) together form a pipeline component; a protective layer is provided on the side wall of the outer tube (1); a thread is provided on the side wall of the inner tube (2); two No. 1 threaded holes (3) are symmetrically provided on the side wall of the inner tube (2); a No. 2 threaded hole (4) matching the No. 1 threaded hole (3) is provided on the side wall of the outer tube (1); a connecting bolt (6) is threadedly connected in the No. 1 threaded hole (3) and the No. 2 threaded hole (4); a No. 1 sealing ring block (5) is fixedly installed on the wall thickness of the inner tube (2); a No. 2 sealing ring block (7) is provided on the side walls of the two connecting bolts (6); and a thread groove matching the thread of the side wall of the inner tube (2) is provided on the inner wall of the outer tube (1).

2. A high-resistance and high-pressure resistant PE water supply pipe according to claim 1, characterized in that: The second sealing ring block (7) is slidably connected to the side wall of the connecting bolt (6).

3. A high-resistance and high-pressure resistant PE water supply pipe according to claim 1, characterized in that: The length of the inner tube (2) exposed in the outer tube (1) is the same as the distance from the inside of the bottom end of the outer tube (1) to the bottom end of the inner tube (2).

4. A high-resistance and high-pressure resistant PE water supply pipe according to claim 1, characterized in that: The protective layer is fixedly connected to the side wall of the outer tube (1), and the protective layer is a polyethylene plastic block.

5. The high-resistance and high-pressure resistant PE water supply pipe according to claim 1, characterized in that: The No. 1 sealing ring block (5) and the No. 2 sealing ring block (7) are both rubber ring blocks.

6. A high-resistance and high-pressure resistant PE water supply pipe according to claim 1, characterized in that: The inner wall of the inner tube (2) is coated with an anti-corrosion coating, and the anti-corrosion coating is an electrophoretic coating.

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