CN219367147U

CN219367147U - High-strength composite water supply pipe

Info

Publication number: CN219367147U
Application number: CN202320126701.4U
Authority: CN
Inventors: 郑文庆
Original assignee: Fujian Resintech Plastics Co ltd
Current assignee: Fujian Resintech Plastics Co ltd
Priority date: 2023-01-15
Filing date: 2023-01-15
Publication date: 2023-07-18
Anticipated expiration: 2033-01-15

Abstract

The utility model relates to a high-strength composite water supply pipe, which comprises an outer pipe, an inner pipe and an elastic sleeve, wherein the inner pipe is positioned in the outer pipe, the elastic sleeve is positioned between the inner pipe and the outer pipe, a plurality of annular grooves are formed in the outer peripheral surface of the inner pipe, the elastic sleeve is sleeved in the annular grooves, the mode of arranging the inner pipe and the outer pipe is adopted to avoid expansion and contraction, gaps are formed between the inner pipe and the outer pipe, the gaps are filled by the elastic sleeve, the inner pipe is used for water passing, the outer pipe is used for contacting with the outside, the gaps between the inner pipe and the outer pipe can play a role in heat preservation, so that the inner pipe is affected by the outside temperature, the problem of expansion and contraction caused by sudden water passing does not exist in the outer pipe generally, but when weather is colder, the inner pipe can still generate expansion and contraction effects, the elastic sleeve can be compressed when the inner pipe expands, the gaps between the inner pipe and the outer pipe provide radial deformation space, and the width contraction of the annular grooves provide axial deformation space of the inner pipe.

Description

High-strength composite water supply pipe

Technical Field

The utility model belongs to the technical field of composite water pipes, and particularly relates to a high-strength composite water supply pipe.

Background

The plastic pipeline is an important branch in a plurality of components of chemical building materials, and can be divided into a polyvinyl chloride (polyvinyl chloride, abbreviated as PVC) pipe, a Polyethylene (PE) pipe and the like from the different classifications of using chemical materials, and the existing water pipe can be installed outdoors or indoors according to requirements, wherein the pipeline is installed outdoors in winter because of low outdoor temperature, and the occurrence of expansion and contraction of the pipeline caused by internal and external temperature differences when water is introduced into the pipeline, so that the pipeline is cracked.

Disclosure of Invention

In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide the high-strength composite water supply pipe, which can be used for accommodating the conditions of thermal expansion and cold contraction, and the inner pipe and the outer pipe are provided with deformation spaces.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a high strength composite water supply pipe, includes outer tube, inner tube and elastic sleeve, the inner tube is located the outer tube, the elastic sleeve is located between inner tube and the outer tube, the inner tube outer peripheral face has a plurality of ring channels, the elastic sleeve cover is established in the ring channel.

Further, the length of the elastic sleeve is smaller than the width of the annular groove.

Further, a plurality of the annular grooves are arranged at equal intervals.

Further, the elastic sleeve forms a notch through the sidewall.

Further, the inner peripheral surface of the inner tube is provided with a limiting groove, the outer peripheral surface of the inner tube is provided with a limiting protrusion, the limiting protrusion is matched with the limiting groove, and the limiting protrusion and the annular groove are arranged in a staggered mode along the axis direction of the inner tube.

Further, the number of the limiting grooves is four, the four limiting grooves are arranged at intervals along the axis of the outer tube in an annular mode, and the limiting protrusions correspond to the limiting grooves.

Further, the elastic sleeve is a silica gel sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, expansion and contraction of heat are avoided by arranging the inner tube and the outer tube, a gap is formed between the inner tube and the outer tube, the gap is filled by the elastic sleeve, the inner tube is used for water supply, the outer tube is used for contact with the outside, the gap between the inner tube and the outer tube can play a heat preservation effect, so that the inner tube is less affected by the outside temperature, the problem of expansion and contraction of heat caused by sudden water supply does not exist in the outer tube due to water failure, but when the weather is colder, the inner tube still has expansion and contraction effect, the elastic sleeve can be compressed when the inner tube expands, the gap between the inner tube and the outer tube provides radial deformation space, and the annular groove width contraction provides axial deformation space of the inner tube.

Drawings

FIG. 1 is a schematic diagram of a split structure of an inner tube and an outer tube of a high-strength composite water supply pipe according to the present utility model;

FIG. 2 is a schematic perspective view of an elastic sleeve according to the present utility model;

fig. 3 is a schematic cross-sectional view of the present utility model.

The marks in the figure: 1. an outer tube; 11. a limit groove; 2. an inner tube; 21. a limit protrusion; 22. an annular groove; 3. an elastic sleeve; 31. and (5) a notch.

Description of the embodiments

In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 3, the present embodiment provides a high-strength composite water supply pipe, which comprises an outer pipe 1, an inner pipe 2 and an elastic sleeve 3.

Four limiting grooves 11 are formed in the inner peripheral surface of the outer tube 1, the four limiting grooves 11 are annularly arranged at intervals along the axis of the outer tube 1, a hot melt adhesive layer is attached to the inner peripheral surface of the outer tube 1, an aluminum tube layer (not shown in the figure) is connected to the inner surface of the hot melt adhesive layer, the strength of the water tube is guaranteed by connecting the aluminum tube layer, and preferably, a plurality of annular deformation grooves which are arranged at intervals are formed in the outer peripheral surface of the outer tube 1 and are applied to areas with large temperature differences between day and night.

The inner tube 2 is arranged in the outer tube 1, the outer circumferential surface of the inner tube 2 is provided with a plurality of annular grooves 22, the annular grooves 22 are arranged at equal intervals, the outer circumferential surface of the inner tube 2 is provided with four limiting protrusions 21 which are arranged at intervals along the axis of the inner tube 2, the limiting protrusions 21 are matched with the limiting grooves 11, the limiting protrusions 21 and the limiting grooves 11 are used for limiting the relative rotation of the inner tube 2 and the outer tube 1, and the limiting protrusions 21 and the annular grooves 22 are arranged in a staggered mode along the axis direction of the inner tube 2.

The elastic sleeve 3 is located between the inner tube 2 and the outer tube 1, the elastic sleeve 3 is sleeved in the annular groove 22, the elastic sleeve 3 is a silica gel sleeve, and the elastic sleeve 3 forms a notch 31 penetrating through the side wall, so that the installation is convenient. The elastic sleeve 3 is used for the deformation of the inner tube 2 and the outer tube 1 under the influence of expansion caused by heat and contraction caused by cold, and the elastic sleeve 3 is used for adaptively compensating. Preferably, the length of the elastic sleeve 3 is smaller than the width of the annular groove 22, and by setting the width of the annular groove 22 to be larger than the length of the elastic sleeve 3, when the inner tube 2 is prevented from being deformed, the elastic sleeve 3 is always extruded by two sides of the annular groove 22, so that the elastic sleeve 3 is damaged under the repeated action for a long time, and then the purpose of prolonging the service life of the elastic sleeve 3 is achieved.

Working principle: the gap has between inner tube 2 and the outer tube 1, the space is filled through elastic sleeve 3, inner tube 2 is used for leading to water, outer tube 1 is used for contacting with the external world, the space between inner tube 2 and the outer tube 1 can play the heat preservation effect, make inner tube 2 receive external temperature influence diminish, outer tube 1 generally does not have the problem of the expansion with heat and shrinkage that suddenly crosses water and cause because not leading to water, but when the weather is colder, inner tube 2 still can take place expansion with heat and shrinkage effect, elastic sleeve 3 can be compressed when inner tube 2 expands with heat, the space between inner tube 2 and the outer tube 1 provides radial deformation space, ring channel 22 width shrink provides inner tube 2 axial deformation space.

While the basic principles and main features of the utility model and advantages of the utility model have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims

1. A high strength composite water supply pipe, characterized in that: the novel elastic sleeve is positioned in the outer tube, the elastic sleeve is positioned between the inner tube and the outer tube, a plurality of annular grooves are formed in the outer circumferential surface of the inner tube, and the elastic sleeve is sleeved in the annular grooves.

2. A high strength composite water service pipe as defined in claim 1, wherein: the length of the elastic sleeve is smaller than the width of the annular groove.

3. A high strength composite water service pipe as defined in claim 1, wherein: the annular grooves are arranged at equal intervals.

4. A high strength composite water service pipe as defined in claim 1, wherein: the elastic sleeve forms a notch penetrating through the side wall.

5. A high strength composite water service pipe as defined in claim 1, wherein: the inner peripheral surface of the inner tube is provided with a limiting groove, the outer peripheral surface of the inner tube is provided with a limiting protrusion, the limiting protrusion is matched with the limiting groove, and the limiting protrusion and the annular groove are arranged in a staggered mode along the axis direction of the inner tube.

6. The high strength composite water service pipe according to claim 5, wherein: the number of the limiting grooves is four, the four limiting grooves are arranged at intervals along the axis of the outer tube in an annular mode, and the limiting protrusions correspond to the limiting grooves.

7. A high strength composite water service pipe as defined in claim 1, wherein: the elastic sleeve is a silica gel sleeve.