Water supply pipe

Abstract

The utility model provides a water supply pipe which comprises a water supply main pipe. An inner tube; an outer tube; the buffer units are used for replacing the corresponding buffer units when the buffer units are damaged. The water supply pipe provided by the utility model is provided with the water supply main pipe which can be connected with a waterway; the inner pipe is arranged, can be arranged on the water supply main pipe in a sleeving mode and abuts against the outer wall face of the water supply main pipe; an outer pipe is arranged and can be arranged on an inner pipe in a sleeving mode, and a buffering space for containing a plurality of buffering units is formed between the outer pipe and the inner pipe. The multiple buffer units can be annularly arranged in the buffer space at intervals and can be detachably connected with the inner pipe and the outer pipe, and when all the buffer units are damaged, the corresponding buffer units can be independently replaced. The dismounting process is convenient and fast, and the practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply pipes, and particularly relates to a water supply pipe. Background Art

[0002] A water supply pipe is a green, energy-saving and environment-friendly pipe, which has the characteristics of not rusting, not scaling, not reducing diameter, small fluid resistance, etc. It can effectively reduce the water supply energy consumption, increase the water supply volume at the water using point, and is applicable to the fields of domestic water supply and drainage, chemical sewage discharge, transformation of waterworks, national water conservancy projects, etc. Water supply pipes can be divided into metal pipes, composite pipes and plastic pipes according to the material. Among them, due to the characteristics of light weight, corrosion resistance and long service life of plastic water supply pipes, they are widely used in pipeline engineering.

[0003] In the prior art, when laying urban water supply pipelines, a protective layer is usually arranged on the outer side of plastic water supply pipes. However, the protective layer is still prone to deformation or even rupture under heavy pressure, and is still easily damaged under strong impact. When replacing the protective layer, it is necessary to remove the original protective layer and then install a new one, which is time-consuming and laborious, and has poor adaptability. Summary of the Utility Model

[0004] An embodiment of the utility model provides a water supply pipe, aiming to solve the problem that the disassembly and assembly process of the existing compressive sleeve for plastic water supply pipes is time-consuming and laborious.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a water supply pipe, including:

[0006] A water supply main pipe;

[0007] An inner pipe, sleeved on the water supply main pipe and abutted against the outer wall surface of the water supply main pipe;

[0008] An outer pipe, sleeved on the inner pipe and coaxially arranged with the inner pipe, and a buffer space is formed between the outer pipe and the inner pipe;

[0009] A plurality of buffer units, which are annularly and spaced along the axial direction of the water supply main pipe in the buffer space. Each buffer unit is detachably connected to the inner pipe and the outer pipe, and is used to replace the corresponding buffer unit when each buffer unit therein is damaged.

[0010] In a possible implementation manner, a plurality of first positioning strips are arranged on the inner pipe. Each first positioning strip is annularly and spaced on the outer wall of the inner pipe around the axis of the inner pipe, and each first positioning strip is arranged parallel to the axial direction of the inner pipe; a clamping space for placing each buffer unit is formed between any two adjacent first positioning strips.

[0011] In a possible implementation, the first positioning strip is integrally connected to the inner tube.

[0012] In a possible implementation, a plurality of second positioning strips are provided on the outer tube, and the second positioning strips are annularly and spaced along the axial direction of the outer tube on the inner wall of the outer tube, and are arranged in one-to-one correspondence with the respective clamping spaces, and the second positioning strips are arranged parallel to the axial direction of the outer tube.

[0013] In a possible implementation, the second positioning strip is integrally connected to the outer tube.

[0014] In a possible implementation, each buffer unit includes two buffer plates, the two buffer plates are respectively located on both sides of one of the second positioning strips, and the ends of the two buffer plates far from the inner tube are both in contact with the second positioning strip and the inner wall of the outer tube, and the ends of the two buffer plates close to the inner tube are respectively in contact with the corresponding two first positioning strips and the outer wall of the inner tube.

[0015] In a possible implementation, each buffer plate is an arc-shaped plate for buffering the dynamic and static loads received by the water supply main pipe.

[0016] In this implementation, compared with the prior art, a water supply main pipe is provided, which can be connected to a waterway; an inner tube is provided, which can be sleeved on the water supply main pipe and is in contact with its outer wall surface; an outer tube is provided, which can be sleeved on the inner tube, and a buffer space for placing a plurality of buffer units is formed between the outer tube and the inner tube; the plurality of buffer units can be annularly and spaced in the buffer space, and can be detachably connected to the inner tube and the outer tube, and when the respective buffer units are damaged, the corresponding buffer unit can be replaced separately. The disassembly and assembly process is convenient and fast, and the practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional structural view of the water supply pipe provided by an embodiment of the present invention;

[0018] Figure 2 is Figure 1 a cross-sectional structural view at A-A of the cross-sectional structural view of the water supply pipe provided;

[0019] Description of the reference numerals:

[0020] 10, water supply main pipe; 20, inner tube; 21, first positioning strip; 30, outer tube; 31, second positioning strip; 40, buffer unit; 41, buffer plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model 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 utility model and are not used to limit the present utility model.

[0022] Please refer to Figure 1 and Figure 2 together, and now the water supply pipe provided by the present utility model will be described. The water supply pipe includes: a water supply main pipe 10, an inner pipe 20, an outer pipe 30 and a buffer unit 40. The inner pipe 20 is sleeved on the water supply main pipe 10 and abuts against the outer wall surface of the water supply main pipe 10. The outer pipe 30 is sleeved on the inner pipe 20 and is coaxially arranged with the inner pipe 20. A buffer space is formed between the outer pipe 30 and the inner pipe 20. A plurality of buffer units 40 are provided, and the plurality of buffer units 40 are annularly and spaced along the axial direction of the water supply main pipe 10 and arranged in the buffer space. Each buffer unit 40 is detachably connected to the inner pipe 20 and the outer pipe 30, and is used to replace the corresponding buffer unit 40 when each buffer unit 40 therein is damaged.

[0023] Compared with the prior art, the water supply pipe provided in this embodiment is provided with a water supply main pipe 10, which can be connected to a water circuit. The inner pipe 20 is provided, which can be sleeved on the water supply main pipe 10 and abut against its outer wall surface. The outer pipe 30 is provided, which can be sleeved on the inner pipe 20, and a buffer space for placing a plurality of buffer units 40 is formed between the outer pipe 30 and the inner pipe 20. The plurality of buffer units 40 can be annularly and spaced in the buffer space, can be detachably connected to the inner pipe 20 and the outer pipe 30, and can separately replace the corresponding buffer unit 40 when each buffer unit 40 therein is damaged. The disassembly and assembly process is convenient and fast, and the practicability is good.

[0024] In some embodiments, the above-mentioned inner pipe 20 may adopt a structure such as Figure 1 , Figure 2 shown. Refer to Figure 1 , Figure 2 , a plurality of first positioning strips 21 are provided on the inner pipe 20. Each first positioning strip 21 is annularly and spaced around the axis of the inner pipe 20 on the outer wall of the inner pipe 20, and each first positioning strip 21 is arranged parallel to the axis direction of the inner pipe 20. A clamping space for placing each buffer unit 40 is formed between any two adjacent first positioning strips 21.

[0025] The plurality of first positioning strips 21 can be annularly and spaced on the outer wall of the inner pipe 20, and a clamping space for placing each buffer unit 40 can be formed between any two adjacent first positioning strips 21.

[0026] As a specific implementation manner of this embodiment, the plurality of first positioning strips 21 may be fixedly arranged on the outer wall of the inner pipe 20.

[0027] It should be noted that multiple first positioning strips 21 can be fixedly arranged on the outer wall of the inner tube 20 and can be integrally extruded and formed.

[0028] In some embodiments, the above-mentioned first positioning strips 21 can adopt structures such as Figure 1 , Figure 2 as shown. Refer to Figure 1 , Figure 2 , the first positioning strip 21 is integrally connected to the inner tube 20.

[0029] The integral connection between the first positioning strip 21 and the inner tube 20 can be understood as integral extrusion molding. Tube integral extrusion molding is an efficient and widely used plastic tube production technology, which continuously forms a tubular product with a specific cross-section from plastic raw materials by using an extruder and a series of auxiliary equipment. Tube integral extrusion molding is an existing technology and will not be elaborated here.

[0030] In some embodiments, the above-mentioned outer tube 30 can adopt structures such as Figure 1 , Figure 2 as shown. Refer to Figure 1 , Figure 2 , multiple second positioning strips 31 are arranged on the inner wall of the outer tube 30 at circumferential intervals along the axial direction of the outer tube 30, and are arranged in one-to-one correspondence with each clamping space, and each second positioning strip 31 is arranged parallel to the axial direction of the outer tube 30.

[0031] Multiple second positioning strips 31 can be arranged on the inner wall of the outer tube 30 at circumferential intervals, and each second positioning strip 31 is arranged in one-to-one correspondence with each clamping space.

[0032] As a specific implementation manner of this embodiment, multiple second positioning strips 31 can be fixedly arranged on the inner wall of the outer tube 30.

[0033] It should be noted that multiple second positioning strips 31 can be fixedly arranged on the inner wall of the outer tube 30 and can be integrally extruded and formed.

[0034] In some embodiments, the above-mentioned second positioning strips 31 can adopt structures such as Figure 1 , Figure 2 as shown. Refer to Figure 1 , Figure 2 , the second positioning strip 31 is integrally connected to the outer tube 30.

[0035] The integral connection between the second positioning strip 31 and the outer tube 30 can be understood as integral extrusion molding. Tube integral extrusion molding is an efficient and widely used plastic tube production technology, which continuously forms a tubular product with a specific cross-section from plastic raw materials by using an extruder and a series of auxiliary equipment. Tube integral extrusion molding is an existing technology and will not be elaborated here.

[0036] In some embodiments, the above-mentioned buffer unit 40 may adopt a structure as shown in Figure 1 、 Figure 2 . Referring to Figure 1 、 Figure 2 , each buffer unit 40 includes two buffer plates 41, the two buffer plates 41 are respectively located on both sides of one of the second positioning strips 31, and the ends of the two buffer plates 41 far from the inner tube 20 are both in contact with the second positioning strip 31 and the inner wall of the outer tube 30, and the ends of the two buffer plates 41 close to the inner tube 20 are respectively in contact with the corresponding two first positioning strips 21 and the outer wall of the inner tube 20.

[0037] The two buffer plates 41 may be respectively located on both sides of one of the second positioning strips 31, the ends of the two buffer plates 41 far from the inner tube 20 are both in contact with the second positioning strip 31 and the inner wall of the outer tube 30, the ends of the two buffer plates 41 close to the inner tube 20 are respectively in contact with the corresponding two first positioning strips 21 and the outer wall of the inner tube 20, and the two buffer plates 41, the inner tube 20 and the outer tube 30 together form a triangular buffer structure.

[0038] In some embodiments, the above-mentioned buffer plate 41 may adopt a structure as shown in Figure 1 . Referring to Figure 1 , each buffer plate 41 is an arc-shaped plate for buffering the dynamic and static loads received by the water supply main pipe 10.

[0039] The arc-shaped plate can be installed with prestress and can buffer a large load.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water supply pipe, characterized in that: include: Water mains; An inner pipe is sleeved on the water supply main pipe and abuts against the outer wall surface of the water supply main pipe; An outer tube, sleeved on the inner tube and coaxially arranged with the inner tube, a buffer space is formed between the outer tube and the inner tube; There are multiple buffer units, and the multiple buffer units are arranged in the buffer space at annular intervals along the axial direction of the water supply main pipe. Each buffer unit is detachably connected to the inner pipe and the outer pipe, so that when each buffer unit is damaged, the corresponding buffer unit can be replaced.

2. The water supply pipe according to claim 1, characterized in that The inner tube is provided with a plurality of first positioning strips, each of which is arranged on the outer wall of the inner tube at an annular interval around the axis of the inner tube, and each of the first positioning strips is arranged parallel to the axis direction of the inner tube; a clamping space for placing each of the buffer units is formed between any two adjacent first positioning strips.

3. The water supply pipe according to claim 2, characterized in that: The first positioning strip is integrally connected to the inner tube.

4. The water supply pipe according to claim 2, characterized in that: The outer tube is provided with a plurality of second positioning strips, each of which is arranged on the inner wall of the outer tube at an annular interval along the axial direction of the outer tube and corresponds to each of the clamping spaces one by one, and each of the second positioning strips is arranged parallel to the axial direction of the outer tube.

5. The water supply pipe according to claim 4, characterized in that: The second positioning strip is integrally connected to the outer tube.

6. The water supply pipe according to claim 5, characterized in that: Each of the buffer units includes two buffer plates, which are respectively located on both sides of one of the second positioning strips, and the ends of the two buffer plates away from the inner tube are abutted against the second positioning strip and the inner wall of the outer tube, and the ends of the two buffer plates close to the inner tube are respectively abutted against the corresponding two first positioning strips and the outer wall of the inner tube.

7. The water supply pipe according to claim 6, characterized in that: Each of the buffer plates is an arc-shaped plate, which is used to buffer the dynamic and static loads on the water supply main pipe.

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